/* roulang page: index */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.07);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .nav-cta-btn {
            background: var(--color-primary) !important;
            color: #fff !important;
            padding: 9px 20px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal) !important;
            margin-left: 8px;
        }

        .nav-cta-btn:hover {
            background: var(--color-primary-dark) !important;
            box-shadow: 0 6px 22px rgba(232, 65, 24, 0.38) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta-btn.active {
            background: var(--color-primary-dark) !important;
            color: #fff !important;
        }

        .nav-cta-btn.active::after {
            display: none;
        }

        /* Mega dropdown */
        .mega-trigger {
            position: relative;
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 20px 24px;
            min-width: 420px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-normal);
            z-index: 999;
            border: 1px solid var(--color-border-light);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .mega-trigger:hover .mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-panel a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            color: var(--color-text);
        }

        .mega-panel a:hover {
            background: var(--color-bg-warm);
            color: var(--color-primary);
        }

        .mega-panel .mega-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: var(--color-bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
            color: var(--color-primary);
        }

        /* Mobile nav */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            z-index: 1001;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-toggle:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.05);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .mobile-nav-overlay.active {
            opacity: 1;
        }

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: #fff;
            z-index: 999;
            padding: 24px;
            padding-top: 80px;
            overflow-y: auto;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-xl);
            flex-direction: column;
            gap: 6px;
        }

        .mobile-nav-drawer.active {
            right: 0;
        }

        .mobile-nav-drawer a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }

        .mobile-nav-drawer a:hover,
        .mobile-nav-drawer a.active {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.06);
        }

        .mobile-nav-drawer .nav-cta-btn {
            text-align: center;
            margin-top: 12px;
            background: var(--color-primary) !important;
            color: #fff !important;
        }

        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .mobile-nav-drawer {
                display: flex;
            }
            .mega-panel {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 14px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .site-header {
                --nav-height: 58px;
            }
        }

        /* ========== SECTION BASICS ========== */
        section {
            padding: 60px 0;
            position: relative;
        }

        @media (max-width: 768px) {
            section {
                padding: 40px 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.08);
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-light);
            max-width: 600px;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            padding: 40px 0 60px;
            background: linear-gradient(180deg, #fefaf5 0%, #fdf6ed 40%, #fdfaf6 100%);
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-content {
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 50px;
            padding: 8px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 20px;
            box-shadow: var(--shadow-sm);
        }

        .hero-badge .live-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--color-success);
            animation: pulse-dot 1.6s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(39, 174, 96, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(39, 174, 96, 0);
            }
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-secondary);
            line-height: 1.25;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }

        .hero-title .highlight {
            color: var(--color-primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 6px;
            background: rgba(232, 65, 24, 0.2);
            border-radius: 3px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 50px;
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-btn);
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 8px 28px rgba(232, 65, 24, 0.4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(0.97);
            transition: transform 0.1s ease;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--color-primary);
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 50px;
            font-size: 1rem;
            transition: all var(--transition-normal);
            border: 2px solid var(--color-border);
            letter-spacing: 0.02em;
            cursor: pointer;
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            background: rgba(232, 65, 24, 0.03);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: scale(0.97);
        }

        .hero-kpi-row {
            display: flex;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .hero-kpi {
            text-align: center;
        }

        .hero-kpi .kpi-number {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-secondary);
            letter-spacing: -0.02em;
        }

        .hero-kpi .kpi-label {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1;
        }

        .hero-phone-frame {
            width: 260px;
            height: 460px;
            background: #1a1a2e;
            border-radius: 28px;
            padding: 10px;
            box-shadow: var(--shadow-xl), 0 0 0 4px #2d2d3f, 0 0 0 6px #1a1a2e;
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            justify-content: center;
        }

        .hero-phone-frame::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.1) 0%, rgba(26, 26, 46, 0.7) 100%);
            border-radius: 18px;
            z-index: 1;
        }

        .hero-phone-content {
            position: relative;
            z-index: 2;
            color: #fff;
            text-align: center;
            padding: 20px 16px;
            width: 100%;
        }

        .hero-phone-content .phone-badge {
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 700;
            font-size: 0.7rem;
            padding: 4px 10px;
            border-radius: 50px;
            display: inline-block;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .hero-phone-content .phone-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .hero-phone-content .phone-sub {
            font-size: 0.75rem;
            opacity: 0.85;
            margin-bottom: 10px;
        }

        .hero-phone-content .phone-btn {
            display: inline-block;
            background: #fff;
            color: #1a1a2e;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 8px 20px;
            border-radius: 50px;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .hero-phone-content .phone-btn:hover {
            background: var(--color-accent);
            transform: scale(1.03);
        }

        .hero-floating-card {
            position: absolute;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 14px 18px;
            box-shadow: var(--shadow-lg);
            z-index: 3;
            font-size: 0.85rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
            animation: float-card 5s ease-in-out infinite;
        }

        .hero-floating-card.card-top {
            top: 20px;
            right: -30px;
            animation-delay: 0s;
        }

        .hero-floating-card.card-bottom {
            bottom: 50px;
            left: -20px;
            animation-delay: 2.5s;
        }

        @keyframes float-card {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-12px);
            }
        }

        .hero-floating-card .fc-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .fc-icon.green {
            background: #e8f8ef;
            color: #27ae60;
        }
        .fc-icon.red {
            background: #fde8e4;
            color: #e84118;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-phone-frame {
                width: 200px;
                height: 360px;
                border-radius: 22px;
            }
            .hero-floating-card.card-top {
                right: 0;
                top: 10px;
            }
            .hero-floating-card.card-bottom {
                left: 0;
                bottom: 30px;
            }
            .hero-title {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-phone-frame {
                width: 160px;
                height: 290px;
                border-radius: 18px;
                padding: 6px;
            }
            .hero-floating-card {
                font-size: 0.7rem;
                padding: 8px 12px;
                gap: 6px;
            }
            .hero-floating-card.card-top {
                right: -10px;
                top: 0;
            }
            .hero-floating-card.card-bottom {
                left: -10px;
                bottom: 20px;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .hero-kpi-row {
                gap: 16px;
            }
            .hero-kpi .kpi-number {
                font-size: 1.3rem;
            }
        }

        /* ========== CARDS & COMPONENTS ========== */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .card-accent {
            border-left: 4px solid var(--color-primary);
        }

        .card-cover-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 14px;
        }

        .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 50px;
            letter-spacing: 0.03em;
        }

        .tag-hot {
            background: #fde8e4;
            color: #e84118;
        }
        .tag-new {
            background: #e8f4fd;
            color: #2980b9;
        }
        .tag-gold {
            background: #fef5e4;
            color: #d4a017;
        }
        .tag-green {
            background: #e8f8ef;
            color: #27ae60;
        }

        .badge-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .badge-num.silver {
            background: #b0b8c1;
        }
        .badge-num.gold {
            background: var(--color-accent-gold);
        }

        /* ========== TIER / LADDER SECTION ========== */
        .tier-ladder {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
            position: relative;
        }

        .tier-step {
            flex: 1;
            min-width: 180px;
            max-width: 240px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            border: 2px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .tier-step:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .tier-step.featured {
            border-color: var(--color-primary);
            background: linear-gradient(180deg, #fffaf7 0%, #fff 100%);
            box-shadow: var(--shadow-lg);
            transform: scale(1.03);
            z-index: 2;
        }

        .tier-step.featured:hover {
            transform: scale(1.05);
        }

        .tier-step .tier-icon {
            font-size: 2.2rem;
            margin-bottom: 10px;
        }

        .tier-step .tier-name {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-secondary);
            margin-bottom: 4px;
        }

        .tier-step .tier-desc {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 10px;
        }

        .tier-step .tier-highlight {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.9rem;
        }

        .tier-arrow {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.2rem;
            color: var(--color-text-muted);
            z-index: 3;
        }

        @media (max-width: 768px) {
            .tier-ladder {
                flex-direction: column;
                align-items: center;
            }
            .tier-step {
                max-width: 100%;
                width: 100%;
            }
            .tier-arrow {
                display: none;
            }
            .tier-step.featured {
                transform: scale(1);
            }
            .tier-step.featured:hover {
                transform: scale(1.02);
            }
        }

        /* ========== PLAN COMPARISON TABLE ========== */
        .plan-table-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .plan-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            min-width: 700px;
        }

        .plan-table th {
            background: var(--color-secondary);
            color: #fff;
            padding: 14px 16px;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
            letter-spacing: 0.03em;
        }

        .plan-table th:first-child {
            border-radius: var(--radius-md) 0 0 0;
            text-align: left;
            padding-left: 20px;
        }
        .plan-table th:last-child {
            border-radius: 0 var(--radius-md) 0 0;
        }

        .plan-table th.highlight-col {
            background: var(--color-primary);
        }

        .plan-table td {
            padding: 12px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.9rem;
            background: #fff;
        }

        .plan-table td:first-child {
            text-align: left;
            font-weight: 600;
            padding-left: 20px;
            color: var(--color-secondary);
        }

        .plan-table tr:last-child td:first-child {
            border-radius: 0 0 0 var(--radius-md);
        }
        .plan-table tr:last-child td:last-child {
            border-radius: 0 0 var(--radius-md) 0;
        }

        .plan-table .check-icon {
            color: var(--color-success);
            font-weight: 700;
        }
        .plan-table .cross-icon {
            color: #ccc;
        }
        .plan-table .highlight-cell {
            background: #fffaf7;
            font-weight: 700;
            color: var(--color-primary);
        }

        /* ========== GUARANTEE BAR ========== */
        .guarantee-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            flex: 1;
            min-width: 200px;
            max-width: 280px;
            justify-content: center;
        }

        .guarantee-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
        }

        .guarantee-icon {
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        /* ========== NEWS SECTION ========== */
        .news-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 28px;
            align-items: start;
        }

        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .news-list-item:hover {
            padding-left: 8px;
            color: var(--color-primary);
        }

        .news-list-item .news-date {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-weight: 500;
            min-width: 70px;
            padding-top: 2px;
        }

        .news-list-item .news-info h4 {
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 4px;
            color: var(--color-secondary);
            line-height: 1.4;
        }

        .news-list-item .news-info p {
            font-size: 0.8rem;
            color: var(--color-text-light);
            line-height: 1.5;
        }

        .news-sidebar {
            background: var(--color-bg-warm);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--color-border-light);
        }

        .news-sidebar h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
            color: var(--color-secondary);
        }

        .news-sidebar .hot-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px dashed var(--color-border-light);
            font-size: 0.85rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .news-sidebar .hot-item:hover {
            color: var(--color-primary);
        }

        .news-sidebar .hot-rank {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--color-primary);
            flex-shrink: 0;
            width: 24px;
            text-align: center;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-list-item {
                flex-direction: column;
                gap: 4px;
            }
        }

        /* ========== REWARD PREVIEW ========== */
        .reward-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .reward-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px 20px;
            text-align: center;
            border: 2px solid var(--color-border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .reward-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
        }

        .reward-card .reward-icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            background: linear-gradient(135deg, #fef5e4, #fdf0d5);
        }

        .reward-card .reward-name {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-secondary);
            margin-bottom: 4px;
        }

        .reward-card .reward-desc {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }

        .reward-card .reward-btn {
            display: inline-block;
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 8px 18px;
            border-radius: 50px;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .reward-card .reward-btn:hover {
            background: var(--color-accent-gold);
            transform: scale(1.04);
        }

        /* ========== HOT LIST ========== */
        .hotlist-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 16px;
        }

        .hotlist-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 16px 18px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .hotlist-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
            transform: translateX(4px);
        }

        .hotlist-item .hl-rank {
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--color-primary);
            flex-shrink: 0;
            width: 36px;
            text-align: center;
        }

        .hotlist-item .hl-info h4 {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-secondary);
            margin-bottom: 2px;
        }

        .hotlist-item .hl-info p {
            font-size: 0.75rem;
            color: var(--color-text-light);
        }

        .hotlist-item .hl-action {
            margin-left: auto;
            flex-shrink: 0;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-primary);
            padding: 6px 14px;
            border-radius: 50px;
            border: 1px solid var(--color-primary);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .hotlist-item .hl-action:hover {
            background: var(--color-primary);
            color: #fff;
        }

        /* ========== SOCIAL PROOF ========== */
        .social-proof-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }

        .proof-stat {
            text-align: center;
            flex: 1;
            min-width: 140px;
            max-width: 200px;
        }

        .proof-stat .stat-big {
            font-family: var(--font-display);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.03em;
        }

        .proof-stat .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-top: 4px;
        }

        .proof-stars {
            color: var(--color-accent);
            font-size: 1.1rem;
            letter-spacing: 2px;
        }

        /* ========== OPINION CARDS ========== */
        .opinion-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .opinion-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
        }

        .opinion-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .opinion-card .opinion-quote {
            font-size: 1.5rem;
            color: var(--color-primary);
            opacity: 0.6;
            margin-bottom: 8px;
            line-height: 1;
        }

        .opinion-card .opinion-text {
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .opinion-card .opinion-author {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-secondary);
            user-select: none;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-arrow {
            transition: transform var(--transition-normal);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 22px;
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1e272e 0%, #2d3436 100%);
            color: #fff;
            text-align: center;
            border-radius: 0;
            padding: 60px 0;
        }

        .cta-section .cta-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .cta-section .cta-desc {
            font-size: 1rem;
            opacity: 0.8;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-section .btn-primary {
            background: var(--color-accent);
            color: #1a1a2e;
            box-shadow: 0 4px 18px rgba(245, 166, 35, 0.35);
            font-size: 1.05rem;
            padding: 14px 32px;
        }

        .cta-section .btn-primary:hover {
            background: #f0b840;
            box-shadow: 0 8px 28px rgba(245, 166, 35, 0.5);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary);
            color: #b0b8c1;
            padding: 48px 0 28px;
            font-size: 0.85rem;
            line-height: 1.8;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: #b0b8c1;
            padding: 3px 0;
            transition: all var(--transition-fast);
            font-size: 0.82rem;
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: #8899a6;
        }

        .footer-bottom a {
            color: #8899a6;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ========== UTILITY CLASSES ========== */
        .text-center {
            text-align: center;
        }
        .text-primary {
            color: var(--color-primary);
        }
        .text-muted {
            color: var(--color-text-light);
        }
        .fw-bold {
            font-weight: 700;
        }
        .fw-extrabold {
            font-weight: 800;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 12px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .mb-6 {
            margin-bottom: 24px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .mt-6 {
            margin-top: 24px;
        }
        .gap-3 {
            gap: 12px;
        }
        .gap-4 {
            gap: 16px;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .d-flex {
            display: flex;
        }
        .align-center {
            align-items: center;
        }
        .justify-center {
            justify-content: center;
        }
        .justify-between {
            justify-content: space-between;
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-on-scroll {
            animation: fadeInUp 0.7s ease forwards;
        }

        /* ========== SECTION BG VARIANTS ========== */
        .bg-warm {
            background: var(--color-bg-warm);
        }
        .bg-white {
            background: #fff;
        }
        .bg-light {
            background: #fdfaf6;
        }

        /* ========== LIMITED ENTRY ========== */
        .limited-entry-banner {
            background: linear-gradient(135deg, #e84118 0%, #c23616 100%);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .limited-entry-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .limited-entry-banner .le-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .limited-entry-banner .le-text p {
            font-size: 0.9rem;
            opacity: 0.9;
            line-height: 1.5;
        }

        .limited-entry-banner .le-btn {
            background: #fff;
            color: #e84118;
            font-weight: 700;
            padding: 12px 26px;
            border-radius: 50px;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .limited-entry-banner .le-btn:hover {
            background: #fef5e4;
            transform: scale(1.04);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        @media (max-width: 600px) {
            .limited-entry-banner {
                flex-direction: column;
                text-align: center;
                padding: 24px 18px;
            }
            .limited-entry-banner .le-text h3 {
                font-size: 1.2rem;
            }
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-md);
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            line-height: 1.8;
        }

        .brand-intro-block p {
            font-size: 0.95rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
        }

        /* ========== REVIEW CARDS ========== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .review-card .review-stars {
            color: var(--color-accent);
            font-size: 0.9rem;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .review-card .review-text {
            font-size: 0.88rem;
            color: var(--color-text);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .review-card .review-author {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

/* roulang page: category1 */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.06);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .nav-cta-btn {
            background: var(--color-primary) !important;
            color: #fff !important;
            padding: 8px 20px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal) !important;
            margin-left: 8px;
        }

        .nav-cta-btn:hover {
            background: var(--color-primary-dark) !important;
            color: #fff !important;
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.38);
            transform: translateY(-1px);
        }

        .nav-cta-btn.active::after {
            display: none;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            transition: color var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            color: var(--color-primary);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 0;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .nav-cta-btn {
                padding: 6px 14px !important;
                font-size: 0.85rem !important;
                margin-left: 4px;
            }
        }

        @media (max-width: 860px) {
            .mobile-menu-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 24px 32px;
                gap: 8px;
                box-shadow: var(--shadow-xl);
                transition: right var(--transition-slow);
                z-index: 1000;
                overflow-y: auto;
            }
            .main-nav.open {
                right: 0;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }
            .nav-cta-btn {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 8px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                border-left: 3px solid var(--color-primary);
                border-radius: 0 var(--radius-md) var(--radius-md) 0;
            }
            .mobile-overlay {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.5);
                z-index: 999;
                display: none;
                transition: opacity var(--transition-normal);
            }
            .mobile-overlay.show {
                display: block;
            }
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            padding: 80px 0 100px;
            background: linear-gradient(170deg, #fdfaf6 0%, #fff8f0 30%, #fff3e8 60%, #fef5ec 100%);
            overflow: hidden;
            min-height: 600px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 650px;
            height: 650px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 65, 24, 0.08);
            color: var(--color-primary);
            padding: 8px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            width: fit-content;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(232, 65, 24, 0.25);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(232, 65, 24, 0);
            }
        }

        .hero-badge .live-dot {
            width: 9px;
            height: 9px;
            background: var(--color-success);
            border-radius: 50%;
            animation: blink-dot 1.2s ease-in-out infinite;
        }

        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-secondary);
            line-height: 1.25;
            letter-spacing: 0.02em;
        }

        .hero-title .highlight {
            color: var(--color-primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(232, 65, 24, 0.15);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-light);
            line-height: 1.8;
            max-width: 500px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 22px rgba(232, 65, 24, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--color-primary);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            background: rgba(232, 65, 24, 0.05);
            border-color: var(--color-primary-dark);
            color: var(--color-primary-dark);
            transform: translateY(-2px);
        }

        .hero-right {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .progress-ring-wrapper {
            position: relative;
            width: 300px;
            height: 300px;
            flex-shrink: 0;
        }

        .progress-ring-svg {
            transform: rotate(-90deg);
            width: 100%;
            height: 100%;
        }

        .progress-ring-bg {
            fill: none;
            stroke: #f0e8df;
            stroke-width: 14;
        }

        .progress-ring-fg {
            fill: none;
            stroke: var(--color-primary);
            stroke-width: 14;
            stroke-linecap: round;
            transition: stroke-dashoffset 1.5s ease;
        }

        .progress-ring-center {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }

        .progress-ring-number {
            font-family: var(--font-display);
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }

        .progress-ring-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        .hero-floating-cards {
            position: absolute;
            display: flex;
            flex-direction: column;
            gap: 10px;
            right: -20px;
            top: 10px;
        }

        .hero-float-card {
            background: #fff;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            animation: float-card 3s ease-in-out infinite;
        }

        .hero-float-card:nth-child(2) {
            animation-delay: 0.5s;
        }
        .hero-float-card:nth-child(3) {
            animation-delay: 1s;
        }

        @keyframes float-card {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        .hero-float-card .dot-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .dot-red {
            background: #e84118;
        }
        .dot-blue {
            background: #3498db;
        }
        .dot-green {
            background: #27ae60;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-left {
                align-items: center;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-right {
                justify-content: center;
            }
            .progress-ring-wrapper {
                width: 240px;
                height: 240px;
            }
            .progress-ring-number {
                font-size: 2.8rem;
            }
            .hero-floating-cards {
                position: relative;
                right: auto;
                top: auto;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                margin-top: 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                padding: 50px 0 60px;
                min-height: auto;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .progress-ring-wrapper {
                width: 180px;
                height: 180px;
            }
            .progress-ring-number {
                font-size: 2.2rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .hero-floating-cards {
                gap: 6px;
            }
            .hero-float-card {
                font-size: 0.75rem;
                padding: 8px 12px;
            }
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-secondary);
            text-align: center;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            text-align: center;
            color: var(--color-text-light);
            font-size: 1.05rem;
            max-width: 650px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            text-align: center;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-label-wrapper {
            text-align: center;
            margin-bottom: 4px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
        }

        /* ========== PAIN POINTS SECTION ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .pain-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: #fcc9b9;
        }

        .pain-card .pain-icon {
            font-size: 2.5rem;
            margin-bottom: 16px;
            display: block;
        }

        .pain-card h4 {
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .pain-card p {
            color: var(--color-text-light);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .pain-card .pain-stripe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #e84118, #ff6b4a);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .pain-card:hover .pain-stripe {
            opacity: 1;
        }

        @media (max-width: 768px) {
            .pain-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== SOLUTION SECTION ========== */
        .solution-bg {
            background: var(--color-bg-dark);
            color: #fff;
            padding: 80px 0;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }

        .solution-bg::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(232, 65, 24, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }

        .solution-bg .section-title {
            color: #fff;
        }

        .solution-bg .section-subtitle {
            color: #b0b8c0;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }

        .solution-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition-normal);
            backdrop-filter: blur(4px);
        }

        .solution-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.22);
            transform: translateY(-4px);
        }

        .solution-card .solution-icon {
            font-size: 2.2rem;
            margin-bottom: 14px;
            display: block;
        }

        .solution-card h4 {
            font-family: var(--font-display);
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }

        .solution-card p {
            color: #b0b8c0;
            font-size: 0.85rem;
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .solution-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .solution-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== RESULTS SHOWCASE ========== */
        .results-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .result-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
        }

        .result-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .result-card .lottery-tag {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .result-card .lottery-tag.tag-blue {
            background: #3498db;
        }
        .result-card .lottery-tag.tag-green {
            background: #27ae60;
        }
        .result-card .lottery-tag.tag-purple {
            background: #8e44ad;
        }

        .result-card .numbers-row {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin: 12px 0;
            flex-wrap: wrap;
        }

        .result-card .number-ball {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, #e84118, #ff6b4a);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 3px 8px rgba(232, 65, 24, 0.25);
        }

        .result-card .number-ball.ball-blue {
            background: linear-gradient(135deg, #2980b9, #3498db);
            box-shadow: 0 3px 8px rgba(52, 152, 219, 0.25);
        }

        .result-card .result-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        .result-card .result-status {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-success);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .results-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .results-showcase {
                grid-template-columns: 1fr;
            }
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .testimonial-card .quote-icon {
            font-size: 3rem;
            color: rgba(232, 65, 24, 0.15);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }

        .testimonial-card .testimonial-text {
            color: var(--color-text);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #e84118, #ff6b4a);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .testimonial-card .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-secondary);
        }

        .testimonial-card .author-role {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            gap: 0;
            flex-wrap: wrap;
            position: relative;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 280px;
            text-align: center;
            padding: 0 20px;
            position: relative;
        }

        .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.4rem;
            margin: 0 auto 16px;
            box-shadow: 0 6px 18px rgba(232, 65, 24, 0.3);
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }

        .process-step p {
            color: var(--color-text-light);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        .process-connector {
            position: absolute;
            top: 28px;
            left: 60%;
            width: 80%;
            height: 3px;
            background: linear-gradient(90deg, #e84118, #f5a623);
            z-index: 1;
            border-radius: 3px;
        }

        .process-step:last-child .process-connector {
            display: none;
        }

        @media (max-width: 768px) {
            .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 24px;
            }
            .process-step {
                max-width: 100%;
            }
            .process-connector {
                display: none;
            }
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            transition: transform var(--transition-normal);
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--color-text-light);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #e84118 0%, #c23616 40%, #a02d12 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -30%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .cta-title {
            font-family: var(--font-display);
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-section .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--color-primary);
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }

        .cta-section .btn-cta-large:hover {
            background: #fff;
            color: var(--color-primary-dark);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
            transform: translateY(-3px);
        }

        @media (max-width: 520px) {
            .cta-section .cta-title {
                font-size: 1.7rem;
            }
            .cta-section .btn-cta-large {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }

        /* ========== BRAND INTRO SECTION ========== */
        .brand-intro-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 48px 40px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border-light);
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .brand-intro-card h3 {
            font-family: var(--font-display);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 16px;
        }

        .brand-intro-card p {
            color: var(--color-text-light);
            line-height: 1.9;
            font-size: 1rem;
        }

        @media (max-width: 520px) {
            .brand-intro-card {
                padding: 28px 20px;
            }
            .brand-intro-card h3 {
                font-size: 1.3rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: #b0b8c0;
            padding: 56px 0 32px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-family: var(--font-display);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: #b0b8c0;
            padding: 6px 0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            justify-content: center;
            text-align: center;
            font-size: 0.82rem;
            color: #8a94a0;
        }

        .footer-bottom a {
            color: #b0b8c0;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-family: var(--font-display);
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }

        /* ========== IMAGE CARD ========== */
        .img-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
        }

        .img-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .img-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .img-card-body {
            padding: 16px;
            background: #fff;
        }

        .img-card-body h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
            color: var(--color-secondary);
        }

        .img-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            line-height: 1.5;
        }

/* roulang page: category2 */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --color-blue-accent: #3b82f6;
            --color-teal: #0d9488;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.93rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.07);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .nav-cta-btn {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)) !important;
            color: #fff !important;
            padding: 9px 18px !important;
            border-radius: var(--radius-md) !important;
            font-weight: 600 !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal) !important;
        }

        .nav-cta-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.35) !important;
            color: #fff !important;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary)) !important;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            border-radius: var(--radius-sm);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .nav-cta-btn {
                padding: 7px 14px !important;
                font-size: 0.85rem !important;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px;
                gap: 6px;
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                display: none;
                z-index: 999;
                max-height: 70vh;
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.95rem;
                border-radius: var(--radius-md);
            }
            .main-nav a.active::after {
                display: none;
            }
            .nav-cta-btn {
                text-align: center;
                justify-content: center;
            }
            .header-inner {
                padding: 0 12px;
            }
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--color-bg-dark);
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.82) 0%, rgba(26, 26, 46, 0.7) 40%, rgba(26, 26, 46, 0.88) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .hero-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 50px;
            color: #fff;
            font-size: 0.88rem;
            font-weight: 500;
            backdrop-filter: blur(8px);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .hero-tag:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        .hero-tag.active-tag {
            background: var(--color-primary);
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(232, 65, 24, 0.4);
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .hero-title span {
            color: var(--color-accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 50px;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-primary-lg:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 65, 24, 0.4);
            color: #fff;
        }

        .btn-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-stat-num {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 440px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-stats-row {
                gap: 18px;
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
            .hero-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 12px 22px;
                font-size: 0.95rem;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section-spacing {
            padding: 64px 0;
        }

        @media (max-width: 768px) {
            .section-spacing {
                padding: 40px 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.06);
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 680px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== PAIN POINT SECTION ========== */
        .pain-point-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .pain-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .pain-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .pain-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            background: rgba(232, 65, 24, 0.08);
            color: var(--color-primary);
        }

        .pain-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .pain-card p {
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.65;
            margin: 0;
        }

        /* ========== SOLUTION SECTION ========== */
        .solution-alt-bg {
            background: var(--color-bg-warm);
            border-radius: var(--radius-2xl);
            padding: 48px 36px;
            margin-top: 16px;
        }

        .solution-feature-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
        }

        .solution-img-col {
            flex: 1 1 380px;
            min-width: 280px;
        }

        .solution-img-col img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .solution-text-col {
            flex: 1 1 400px;
            min-width: 280px;
        }

        .solution-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .solution-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

        .solution-list li:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
            border-left: 3px solid var(--color-primary);
        }

        .solution-list .check-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(39, 174, 96, 0.12);
            color: var(--color-success);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            margin-top: 2px;
        }

        .solution-list .item-text strong {
            display: block;
            font-size: 0.98rem;
            color: var(--color-secondary);
            margin-bottom: 3px;
        }

        .solution-list .item-text span {
            font-size: 0.86rem;
            color: var(--color-text-light);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .solution-alt-bg {
                padding: 28px 16px;
                border-radius: var(--radius-lg);
            }
            .solution-feature-row {
                flex-direction: column;
            }
        }

        /* ========== DATA PANEL SECTION ========== */
        .data-panel-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
        }

        .data-stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .data-stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .data-stat-card .stat-icon {
            font-size: 1.6rem;
            margin-bottom: 8px;
            color: var(--color-primary);
        }

        .data-stat-card .stat-value {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-secondary);
            line-height: 1;
            margin-bottom: 4px;
        }

        .data-stat-card .stat-value.gold {
            color: var(--color-accent-gold);
        }

        .data-stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }

        .data-stat-card .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            margin-top: 6px;
        }

        .data-stat-card .stat-trend.up {
            background: rgba(39, 174, 96, 0.1);
            color: var(--color-success);
        }

        .data-stat-card .stat-trend.down {
            background: rgba(232, 65, 24, 0.08);
            color: var(--color-primary);
        }

        /* ========== TOOLS SECTION ========== */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .tool-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-card);
        }

        .tool-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .tool-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-bottom: 2px solid var(--color-border-light);
        }

        .tool-card-body {
            padding: 20px;
        }

        .tool-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .tool-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .tool-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }

        .tool-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 50px;
            background: rgba(59, 130, 246, 0.08);
            color: var(--color-blue-accent);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .tool-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: all var(--transition-fast);
        }

        .tool-card-link:hover {
            color: var(--color-primary-dark);
            gap: 10px;
        }

        /* ========== SCENARIO SECTION ========== */
        .scenario-bg {
            background: var(--color-bg-dark);
            border-radius: var(--radius-2xl);
            padding: 48px 36px;
            color: #fff;
        }

        .scenario-bg .section-title {
            color: #fff;
        }

        .scenario-bg .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 18px;
        }

        .scenario-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-normal);
            backdrop-filter: blur(4px);
        }

        .scenario-card:hover {
            background: rgba(255, 255, 255, 0.13);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
        }

        .scenario-card .sc-icon {
            font-size: 1.8rem;
            margin-bottom: 12px;
            display: block;
        }

        .scenario-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .scenario-card p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .scenario-bg {
                padding: 28px 16px;
                border-radius: var(--radius-lg);
            }
        }

        /* ========== TESTIMONIAL SECTION ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 20px;
        }

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--color-primary);
            opacity: 0.3;
            position: absolute;
            top: 16px;
            right: 20px;
        }

        .testimonial-card .t-stars {
            color: var(--color-accent);
            margin-bottom: 10px;
            font-size: 0.9rem;
            letter-spacing: 2px;
        }

        .testimonial-card .t-text {
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-card .t-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .t-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .testimonial-card .t-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-secondary);
        }

        .testimonial-card .t-role {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-secondary);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 14px;
        }

        .faq-question:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.02);
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-bg-dark), #252540);
            border-radius: var(--radius-2xl);
            padding: 52px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(232, 65, 24, 0.15);
            border-radius: 50%;
            z-index: 0;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(245, 166, 35, 0.12);
            border-radius: 50%;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .cta-btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-primary-light);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            padding-top: var(--nav-height);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.93rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.07);
        }

        .main-nav a.nav-cta-btn {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 10px 18px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal);
            margin-left: 4px;
        }

        .main-nav a.nav-cta-btn:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.35);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.06);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 1px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .main-nav a.nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 860px) {
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 2px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-slow);
                z-index: 999;
                max-height: 70vh;
                overflow-y: auto;
            }
            .main-nav.nav-open {
                transform: translateY(0);
                opacity: 1;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 0.95rem;
                border-radius: var(--radius-md);
                justify-content: flex-start;
                width: 100%;
            }
            .main-nav a.nav-cta-btn {
                margin-left: 0;
                margin-top: 6px;
                justify-content: center;
                text-align: center;
                padding: 12px 16px;
            }
        }

        /* ========== SECTION BASE ========== */
        .section-padding {
            padding: 64px 0;
        }
        .section-padding-sm {
            padding: 40px 0;
        }
        .section-padding-lg {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-lg {
                padding: 48px 0;
            }
            .section-padding-sm {
                padding: 28px 0;
            }
        }

        .section-title {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 2rem;
            color: var(--color-secondary);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-light);
            margin-bottom: 28px;
            line-height: 1.6;
            max-width: 700px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            background: rgba(232, 65, 24, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            letter-spacing: 0.03em;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary-custom:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: 0 8px 24px rgba(232, 65, 24, 0.35);
            transform: translateY(-2px);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            letter-spacing: 0.03em;
            border: 2px solid var(--color-primary);
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
            transform: translateY(-2px);
        }
        .btn-lg-custom {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-custom .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-warm);
        }
        .card-custom .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-custom .card-body-custom {
            padding: 20px 22px 24px;
        }
        .card-custom .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.07);
            padding: 4px 12px;
            border-radius: 14px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .card-custom .card-title-custom {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-custom .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ========== BADGE ========== */
        .badge-custom {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 16px;
            letter-spacing: 0.03em;
        }
        .badge-primary {
            background: rgba(232, 65, 24, 0.1);
            color: var(--color-primary);
        }
        .badge-success {
            background: rgba(39, 174, 96, 0.1);
            color: var(--color-success);
        }
        .badge-accent {
            background: rgba(245, 166, 35, 0.12);
            color: var(--color-accent-gold);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, #fdfaf6 0%, #fff5ed 40%, #ffede3 100%);
            padding: 64px 0 72px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-question {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 2.6rem;
            color: var(--color-secondary);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .hero-question .highlight {
            color: var(--color-primary);
            position: relative;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .hero-form-wrap {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px 30px;
            box-shadow: var(--shadow-lg);
            max-width: 520px;
            border: 1px solid var(--color-border-light);
        }
        .hero-form-wrap .form-label-custom {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-secondary);
            margin-bottom: 6px;
            display: block;
            letter-spacing: 0.02em;
        }
        .hero-form-wrap select,
        .hero-form-wrap input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-border);
            font-size: 0.95rem;
            background: var(--color-bg);
            transition: all var(--transition-fast);
            color: var(--color-text);
            margin-bottom: 14px;
            appearance: auto;
        }
        .hero-form-wrap select:focus,
        .hero-form-wrap input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(232, 65, 24, 0.08);
            background: #fff;
        }
        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual img {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            max-width: 100%;
        }
        .hero-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .hero-stat-item {
            text-align: center;
            flex: 1;
            min-width: 80px;
        }
        .hero-stat-num {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--color-primary);
            line-height: 1.1;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 40px 0 48px;
                min-height: auto;
            }
            .hero-question {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-form-wrap {
                padding: 20px;
                max-width: 100%;
            }
            .hero-visual {
                margin-top: 24px;
            }
            .hero-stats-row {
                gap: 10px;
            }
            .hero-stat-num {
                font-size: 1.4rem;
            }
        }

        /* ========== PAIN POINT SECTION ========== */
        .pain-section {
            background: #fff;
            position: relative;
        }
        .pain-card {
            background: var(--color-bg-warm);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border-left: 4px solid var(--color-primary);
            transition: all var(--transition-normal);
            height: 100%;
        }
        .pain-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(232, 65, 24, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-primary);
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .pain-card h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }
        .pain-card p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== SOLUTION SECTION ========== */
        .solution-section {
            background: var(--color-bg);
            position: relative;
        }
        .solution-highlight-box {
            background: var(--color-bg-card);
            border-radius: var(--radius-2xl);
            padding: 36px 32px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border-light);
            position: relative;
            overflow: hidden;
        }
        .solution-highlight-box::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 140px;
            height: 140px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .solution-number {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: 3.5rem;
            color: rgba(232, 65, 24, 0.12);
            line-height: 1;
            position: absolute;
            top: 10px;
            right: 20px;
            pointer-events: none;
        }

        /* ========== PROCESS STEPS ========== */
        .process-section {
            background: #fff;
            position: relative;
        }
        .step-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 20px 0;
            position: relative;
        }
        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 23px;
            top: 60px;
            bottom: 0;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }
        .step-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
            z-index: 1;
            box-shadow: 0 4px 14px rgba(232, 65, 24, 0.3);
        }
        .step-content h4 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-secondary);
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-section {
            background: var(--color-bg-warm);
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            height: 100%;
            transition: all var(--transition-normal);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: rgba(232, 65, 24, 0.2);
            margin-bottom: 8px;
            line-height: 1;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-card .testimonial-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-secondary);
        }
        .testimonial-card .testimonial-role {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 20px 0;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            user-select: none;
            padding: 4px 0;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(232, 65, 24, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--color-primary);
            transition: all var(--transition-normal);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
            padding-right: 48px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 10px;
            padding-bottom: 4px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-secondary) 0%, #2c3a44 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 72px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.2) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .cta-title {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 2.2rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: 0.03em;
        }
        .cta-section .cta-desc {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            padding: 15px 34px;
            border-radius: var(--radius-lg);
            font-size: 1.1rem;
            letter-spacing: 0.03em;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-cta-white:hover {
            background: #fff;
            color: var(--color-primary-dark);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section .cta-title {
                font-size: 1.5rem;
            }
            .cta-section .cta-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: #c9cdd2;
            padding: 48px 0 28px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .site-footer .footer-col a {
            display: block;
            color: #9ca3af;
            transition: color var(--transition-fast);
            padding: 2px 0;
            font-size: 0.88rem;
        }
        .site-footer .footer-col a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
            font-size: 0.8rem;
            color: #7a8188;
        }
        .site-footer .footer-bottom a {
            color: #9ca3af;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }
        @media (max-width: 480px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== MISC ========== */
        .text-primary-custom {
            color: var(--color-primary);
        }
        .bg-warm {
            background: var(--color-bg-warm);
        }
        .rounded-xl-custom {
            border-radius: var(--radius-xl);
        }
        .shadow-card-custom {
            box-shadow: var(--shadow-card);
        }
        .img-cover-fit {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .highlight-box {
            background: rgba(232, 65, 24, 0.05);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            border: 1px dashed rgba(232, 65, 24, 0.25);
        }
        .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            background: #fff;
            border: 1px solid var(--color-border);
            color: var(--color-text);
            transition: all var(--transition-fast);
            cursor: default;
        }
        .tag-pill:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.03);
        }

        @media (max-width: 520px) {
            .hero-stats-row {
                gap: 6px;
            }
            .hero-stat-num {
                font-size: 1.2rem;
            }
            .hero-stat-label {
                font-size: 0.7rem;
            }
            .card-custom .card-body-custom {
                padding: 14px 16px 18px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .step-circle {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .step-item:not(:last-child)::after {
                left: 18px;
                top: 50px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.07);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .nav-cta-btn {
            background: var(--color-primary) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 20px !important;
            border-radius: var(--radius-lg) !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal) !important;
            margin-left: 6px;
        }

        .nav-cta-btn:hover {
            background: var(--color-primary-dark) !important;
            color: #fff !important;
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.38);
            transform: translateY(-1px);
        }

        .nav-cta-btn.active {
            background: var(--color-primary-dark) !important;
            color: #fff !important;
        }

        .nav-cta-btn.active::after {
            display: none;
        }

        /* 移动端菜单按钮 */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--color-text);
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            line-height: 1;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 30%;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(30, 39, 46, 0.88) 0%,
                    rgba(30, 39, 46, 0.72) 40%,
                    rgba(232, 65, 24, 0.35) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 48px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 24px;
        }

        .hero-text {
            flex: 1;
            min-width: 0;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            color: #fff;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .hero-badge i {
            margin-right: 6px;
            color: var(--color-accent);
        }

        .hero-text h1 {
            font-family: var(--font-display);
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.03em;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .hero-text h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }

        .hero-text .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 14px 32px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal);
            letter-spacing: 0.03em;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 8px 28px rgba(232, 65, 24, 0.42);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 14px 32px;
            border-radius: var(--radius-xl);
            border: 2px solid rgba(255, 255, 255, 0.55);
            transition: all var(--transition-normal);
            letter-spacing: 0.03em;
            cursor: pointer;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .hero-visual {
            flex: 0 0 340px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            flex-shrink: 0;
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-lg);
            padding: 24px;
            color: #fff;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.17);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-3px);
        }

        .hero-stat-card .stat-number {
            font-family: var(--font-display);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 6px;
        }

        .hero-stat-card .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            letter-spacing: 0.03em;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 72px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
            background: rgba(232, 65, 24, 0.06);
            padding: 4px 14px;
            border-radius: 20px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== PAIN POINTS SECTION ========== */
        .pain-section {
            background: var(--color-bg-warm);
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .pain-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .pain-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #fcc4b0;
        }

        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: rgba(232, 65, 24, 0.08);
            color: var(--color-primary);
        }

        .pain-card h3 {
            font-family: var(--font-display);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .pain-card p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.65;
        }

        /* ========== SOLUTION SECTION ========== */
        .solution-section {
            background: var(--color-bg);
        }

        .solution-row {
            display: flex;
            align-items: center;
            gap: 56px;
            flex-wrap: wrap;
        }

        .solution-text {
            flex: 1;
            min-width: 300px;
        }

        .solution-text h2 {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .solution-text p {
            font-size: 1.02rem;
            color: var(--color-text-light);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .solution-checklist {
            list-style: none;
            padding: 0;
        }

        .solution-checklist li {
            padding: 10px 0;
            padding-left: 28px;
            position: relative;
            font-size: 0.98rem;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border-light);
        }

        .solution-checklist li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-success);
            font-weight: 700;
            font-size: 1rem;
        }

        .solution-image {
            flex: 0 0 420px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            flex-shrink: 0;
        }

        .solution-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-xl);
        }

        /* ========== DIMENSION CARDS ========== */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .dimension-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
        }

        .dimension-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary-light);
        }

        .dimension-card .dim-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            background: linear-gradient(135deg, rgba(232, 65, 24, 0.1), rgba(245, 166, 35, 0.1));
            color: var(--color-primary);
        }

        .dimension-card h4 {
            font-family: var(--font-display);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }

        .dimension-card .dim-score {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-display);
            margin: 8px 0;
        }

        .dimension-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-section {
            background: var(--color-bg-dark);
            color: #fff;
        }

        .comparison-section .section-title {
            color: #fff;
        }

        .comparison-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .comparison-section .section-label {
            background: rgba(255, 255, 255, 0.12);
            color: var(--color-accent);
        }

        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.95rem;
        }

        .compare-table thead th {
            background: rgba(232, 65, 24, 0.2);
            padding: 16px 18px;
            text-align: center;
            font-weight: 600;
            color: #fff;
            border-bottom: 2px solid rgba(255, 255, 255, 0.2);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .compare-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.85);
        }

        .compare-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        .star-rating {
            color: var(--color-accent);
            letter-spacing: 2px;
        }

        .badge-rec {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        .badge-good {
            display: inline-block;
            background: var(--color-success);
            color: #fff;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .testimonial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 12px;
            right: 20px;
            font-size: 4rem;
            color: rgba(232, 65, 24, 0.08);
            font-family: serif;
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .testimonial-card .testimonial-text {
            font-size: 0.98rem;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-card .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-secondary);
        }

        .testimonial-card .author-role {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* ========== PROCESS SECTION ========== */
        .process-section {
            background: var(--color-bg-warm);
        }

        .process-steps {
            display: flex;
            gap: 0;
            flex-wrap: wrap;
            justify-content: center;
            counter-reset: step;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 280px;
            text-align: center;
            padding: 28px 20px;
            position: relative;
            counter-increment: step;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 50px;
            right: -20px;
            width: 40px;
            height: 2px;
            background: var(--color-border);
            z-index: 0;
        }

        .process-step:last-child::after {
            display: none;
        }

        .process-step .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.3rem;
            margin: 0 auto 16px;
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 16px rgba(232, 65, 24, 0.3);
        }

        .process-step h4 {
            font-family: var(--font-display);
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.55;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-section {
            background: var(--color-bg);
        }

        .brand-intro-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            padding: 40px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-md);
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .brand-intro-card h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 16px;
        }

        .brand-intro-card p {
            font-size: 1rem;
            color: var(--color-text-light);
            line-height: 1.8;
            text-align: left;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--color-bg);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: #fcc4b0;
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            background: none;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            border: none;
            font-family: var(--font-body);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--color-text-muted);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-secondary), #2c3e50);
            color: #fff;
            text-align: center;
            padding: 72px 0;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 40px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            font-family: var(--font-display);
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-family: var(--font-display);
            letter-spacing: 0.04em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content {
                flex-direction: column;
                text-align: center;
                gap: 32px;
            }

            .hero-text h1 {
                font-size: 2.4rem;
            }

            .hero-text .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }

            .hero-cta-group {
                justify-content: center;
            }

            .hero-visual {
                flex: 0 0 auto;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                width: 100%;
            }

            .hero-stat-card {
                flex: 1;
                min-width: 140px;
            }

            .solution-row {
                flex-direction: column;
                gap: 32px;
            }

            .solution-image {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }

            .process-steps {
                gap: 16px;
            }

            .process-step::after {
                display: none;
            }

            .process-step {
                max-width: 100%;
                flex: 0 0 calc(50% - 16px);
                min-width: 160px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: var(--nav-height);
            }

            .header-inner {
                flex-wrap: wrap;
                padding: 10px 16px;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                padding: 16px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                gap: 2px;
                z-index: 999;
            }

            .main-nav.show {
                display: flex;
            }

            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }

            .nav-cta-btn {
                margin-left: 0;
                text-align: center;
                justify-content: center;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .hero-text h1 {
                font-size: 1.9rem;
            }

            .hero-section {
                min-height: 440px;
            }

            .hero-content {
                padding: 40px 16px;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .pain-grid {
                grid-template-columns: 1fr;
            }

            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .testimonial-grid {
                grid-template-columns: 1fr;
            }

            .compare-table-wrap {
                border-radius: var(--radius-md);
            }

            .compare-table {
                font-size: 0.82rem;
                min-width: 600px;
            }

            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 12px;
            }

            .brand-intro-card {
                padding: 24px;
            }

            .process-step {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.55rem;
            }

            .hero-text .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
                font-size: 0.95rem;
                padding: 12px 24px;
            }

            .hero-stat-card {
                min-width: 100%;
            }

            .hero-visual {
                flex-direction: column;
            }

            .dimension-grid {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .container {
                padding: 0 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.07);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .nav-cta-btn {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)) !important;
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius-lg) !important;
            font-weight: 600 !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal) !important;
        }

        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.4) !important;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary)) !important;
            color: #fff !important;
        }

        .nav-cta-btn.active::after {
            display: none;
        }

        /* Mobile Nav Toggle */
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        @media (max-width: 1024px) {
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 2px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border-light);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-slow);
                z-index: 999;
                max-height: 80vh;
                overflow-y: auto;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
            }

            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }

            .main-nav a.active::after {
                display: none;
            }

            .nav-cta-btn {
                text-align: center;
                justify-content: center;
                margin-top: 8px;
            }

            .mobile-nav-toggle {
                display: block;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .header-inner {
                padding: 0 12px;
            }
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, #1a1a2e 0%, #1e272e 40%, #2d3436 100%);
            overflow: hidden;
            padding: 80px 0 100px;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-text h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .hero-text h1 span {
            color: var(--color-primary-light);
            position: relative;
        }

        .hero-text .hero-subtitle {
            font-size: 1.15rem;
            color: #c8cdd2;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #f0f0f0;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            color: var(--color-accent);
            font-size: 0.85rem;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 16px 32px;
            border-radius: 50px;
            box-shadow: 0 6px 24px rgba(232, 65, 24, 0.4);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-primary-hero:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(232, 65, 24, 0.55);
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
        }

        .btn-outline-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-normal);
        }

        .btn-outline-hero:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        /* Hero right panel - appointment style */
        .hero-appointment-panel {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-2xl);
            padding: 36px 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            position: relative;
            z-index: 2;
        }

        .hero-appointment-panel h3 {
            color: #fff;
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 6px;
            text-align: center;
        }

        .hero-appointment-panel .panel-subtitle {
            color: #a0a8b0;
            font-size: 0.9rem;
            text-align: center;
            margin-bottom: 24px;
        }

        .time-slots {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 20px;
        }

        .time-slot {
            background: rgba(255, 255, 255, 0.06);
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 16px 14px;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            color: #d0d5da;
        }

        .time-slot:hover {
            border-color: var(--color-primary-light);
            background: rgba(232, 65, 24, 0.12);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.2);
        }

        .time-slot.selected {
            border-color: var(--color-primary);
            background: rgba(232, 65, 24, 0.2);
            color: #fff;
            box-shadow: 0 0 0 4px rgba(232, 65, 24, 0.15);
        }

        .time-slot .slot-time {
            font-weight: 700;
            font-size: 1.1rem;
            display: block;
        }

        .time-slot .slot-label {
            font-size: 0.8rem;
            color: #a0a8b0;
            display: block;
            margin-top: 2px;
        }

        .time-slot.selected .slot-label {
            color: #ffb8a0;
        }

        .panel-cta-btn {
            width: 100%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 14px;
            border-radius: 50px;
            text-align: center;
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.35);
            transition: all var(--transition-normal);
            display: block;
            letter-spacing: 0.02em;
        }

        .panel-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(232, 65, 24, 0.5);
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
        }

        .panel-availability {
            text-align: center;
            color: #8a9299;
            font-size: 0.82rem;
            margin-top: 14px;
        }

        .panel-availability span {
            color: var(--color-success);
            font-weight: 600;
        }

        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-section {
                padding: 50px 0 60px;
                min-height: auto;
            }
            .hero-appointment-panel {
                max-width: 440px;
                margin: 0 auto;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-text .hero-subtitle {
                font-size: 1rem;
            }
            .hero-badges {
                gap: 6px;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 6px 12px;
            }
            .btn-primary-hero {
                font-size: 0.95rem;
                padding: 14px 24px;
            }
            .time-slots {
                grid-template-columns: 1fr;
            }
            .hero-appointment-panel {
                padding: 24px 18px;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            background: rgba(232, 65, 24, 0.07);
            padding: 6px 16px;
            border-radius: 50px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 680px;
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== PAIN POINTS ========== */
        .pain-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .pain-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .pain-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-border);
        }

        .pain-card:hover::before {
            opacity: 1;
        }

        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(232, 65, 24, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .pain-card h4 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .pain-card p {
            color: var(--color-text-light);
            font-size: 0.93rem;
            line-height: 1.65;
        }

        @media (max-width: 768px) {
            .pain-points-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== SOLUTION SECTION ========== */
        .solution-section {
            background: var(--color-bg-warm);
            position: relative;
            overflow: hidden;
        }

        .solution-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .solution-image-wrapper {
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            position: relative;
        }

        .solution-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .solution-image-wrapper::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.35), transparent);
            pointer-events: none;
            border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
        }

        .solution-features {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }

        .solution-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 18px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

        .solution-feature-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateX(4px);
        }

        .solution-feature-item .sf-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: rgba(39, 174, 96, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-success);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .solution-feature-item .sf-content h5 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-secondary);
            margin-bottom: 3px;
        }

        .solution-feature-item .sf-content p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .solution-image-wrapper {
                order: -1;
            }
        }

        /* ========== TUTORIAL CARDS ========== */
        .tutorial-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .tutorial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .tutorial-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: var(--color-border);
        }

        .tutorial-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .tutorial-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .tutorial-card:hover .tutorial-card-img img {
            transform: scale(1.06);
        }

        .tutorial-card-img .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 50px;
            z-index: 2;
            letter-spacing: 0.03em;
        }

        .tutorial-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tutorial-card-body h4 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .tutorial-card-body p {
            color: var(--color-text-light);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .tutorial-card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        .tutorial-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
            margin-top: auto;
        }

        .tutorial-card-body .card-link:hover {
            gap: 10px;
        }

        @media (max-width: 900px) {
            .tutorial-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .tutorial-cards-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== LEARNING PATH ========== */
        .learning-path {
            background: var(--color-bg-dark);
            color: #f0f0f0;
            position: relative;
            overflow: hidden;
        }

        .learning-path::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }

        .learning-path .section-title {
            color: #fff;
        }

        .learning-path .section-desc {
            color: #b0b8c0;
        }

        .path-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 44px;
            position: relative;
            z-index: 1;
        }

        .path-step {
            text-align: center;
            position: relative;
        }

        .path-step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.4);
            position: relative;
            z-index: 2;
        }

        .path-step h5 {
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 6px;
        }

        .path-step p {
            font-size: 0.88rem;
            color: #a0a8b2;
            line-height: 1.5;
        }

        .path-connector {
            position: absolute;
            top: 28px;
            left: 60%;
            width: 80%;
            height: 2px;
            background: linear-gradient(to right, rgba(232, 65, 24, 0.5), rgba(255, 255, 255, 0.15));
            z-index: 1;
        }

        .path-step:last-child .path-connector {
            display: none;
        }

        @media (max-width: 900px) {
            .path-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .path-connector {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .path-steps {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== STATS / RESULTS ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .stat-card .stat-number {
            font-family: var(--font-display);
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .testimonial-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
        }

        .testimonial-card::before {
            content: '\201C';
            font-family: serif;
            position: absolute;
            top: 10px;
            left: 18px;
            font-size: 4rem;
            color: rgba(232, 65, 24, 0.08);
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--color-border-light);
            padding-top: 14px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-author .author-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-secondary);
        }

        .testimonial-author .author-role {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--color-bg-warm);
        }

        .faq-list {
            max-width: 800px;
            margin: 40px auto 0;
        }

        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }

        .faq-question {
            width: 100%;
            background: none;
            padding: 20px 24px;
            text-align: left;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-secondary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--color-text-light);
            font-size: 0.93rem;
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 520px) {
            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, #1a1a2e 0%, #1e272e 50%, #2d3436 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 80px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.2) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .section-title {
            color: #fff;
            position: relative;
            z-index: 1;
        }

        .cta-section .section-desc {
            color: #c0c8d0;
            position: relative;
            z-index: 1;
            margin: 0 auto 32px;
        }

        .cta-section .btn-primary-hero {
            position: relative;
            z-index: 1;
            font-size: 1.1rem;
            padding: 18px 40px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #14181c;
            color: #c8cdd2;
            padding: 50px 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: #9aa0a8;
            padding: 5px 0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .footer-col a:hover {
            color: var(--color-primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: #889098;
            text-align: center;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .footer-bottom a {
            color: #aab2b8;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-primary-light);
        }

        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-family: var(--font-display);
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== GUARANTEE SECTION ========== */
        .guarantee-section {
            background: var(--color-bg-card);
            border-top: 1px solid var(--color-border-light);
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 36px;
        }

        .guarantee-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius-lg);
            background: var(--color-bg-warm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

        .guarantee-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .guarantee-item .g-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: rgba(232, 65, 24, 0.08);
            color: var(--color-primary);
        }

        .guarantee-item h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }

        .guarantee-item p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .guarantee-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #e84118;
            --color-primary-dark: #c23616;
            --color-primary-light: #ff6b4a;
            --color-secondary: #1e272e;
            --color-accent: #f5a623;
            --color-accent-gold: #d4a017;
            --color-bg: #fdfaf6;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-bg-warm: #fff8f0;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-muted: #9ca3af;
            --color-border: #e8e0d8;
            --color-border-light: #f0ebe4;
            --color-success: #27ae60;
            --color-red-badge: #e84118;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(232, 65, 24, 0.28);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            margin: 0;
            padding: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(232, 65, 24, 0.3);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.93rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(232, 65, 24, 0.04);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(232, 65, 24, 0.07);
        }

        .main-nav a.nav-cta-btn {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 9px 18px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-normal);
            margin-left: 6px;
        }

        .main-nav a.nav-cta-btn:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 20px rgba(232, 65, 24, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #1a1a2e 0%, #1e272e 40%, #2d1a18 100%);
            padding: 70px 0 80px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 65, 24, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-content {
            color: #fff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 65, 24, 0.2);
            border: 1px solid rgba(232, 65, 24, 0.4);
            color: #ff8a6b;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 16px;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .hero-title .highlight {
            color: var(--color-accent);
            position: relative;
            display: inline-block;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 8px;
            background: rgba(245, 166, 35, 0.3);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 28px;
            line-height: 1.6;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-lg);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
            white-space: nowrap;
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 22px rgba(232, 65, 24, 0.38);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(245, 166, 35, 0.3);
        }

        .btn-accent:hover {
            background: #e6991a;
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
        }

        .invite-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-xl);
            padding: 30px;
            width: 100%;
            max-width: 420px;
            color: #fff;
        }

        .invite-card h3 {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }

        .invite-card .invite-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin: 0 0 20px;
            line-height: 1.5;
        }

        .progress-bar-wrapper {
            margin-bottom: 8px;
        }

        .progress-labels {
            display: flex;
            justify-content: space-between;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .progress-bar-outer {
            width: 100%;
            height: 10px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 50px;
            overflow: hidden;
            position: relative;
        }

        .progress-bar-inner {
            height: 100%;
            background: linear-gradient(90deg, var(--color-accent), #ffb347);
            border-radius: 50px;
            transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: relative;
        }

        .progress-bar-inner::after {
            content: '';
            position: absolute;
            right: 0;
            top: 0;
            width: 20px;
            height: 100%;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            animation: shimmer 2s infinite;
        }

        @keyframes shimmer {
            0%,
            100% {
                opacity: 0.4;
            }
            50% {
                opacity: 1;
            }
        }

        .progress-milestones {
            display: flex;
            justify-content: space-between;
            margin-top: 6px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .reward-tiers {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 18px;
        }

        .reward-tier {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.85);
            transition: all var(--transition-fast);
        }

        .reward-tier.unlocked {
            background: rgba(39, 174, 96, 0.15);
            border-color: rgba(39, 174, 96, 0.4);
            color: #fff;
        }

        .reward-tier .tier-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            background: rgba(255, 255, 255, 0.1);
        }

        .reward-tier.unlocked .tier-icon {
            background: var(--color-success);
            color: #fff;
        }

        .reward-tier .tier-badge {
            margin-left: auto;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            white-space: nowrap;
        }

        .reward-tier.unlocked .tier-badge {
            background: var(--color-success);
            color: #fff;
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: 70px 0;
        }

        .section-dark {
            background: var(--color-bg-dark);
            color: #fff;
        }

        .section-warm {
            background: var(--color-bg-warm);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--color-secondary);
            letter-spacing: 0.03em;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-light);
            margin: 0 auto 40px;
            max-width: 640px;
            line-height: 1.6;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            background: rgba(232, 65, 24, 0.08);
            color: var(--color-primary);
        }

        .card h3 {
            font-family: var(--font-display);
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--color-secondary);
        }

        .card p {
            font-size: 0.93rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.6;
        }

        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: all var(--transition-fast);
        }

        .card .card-link:hover {
            gap: 10px;
            color: var(--color-primary-dark);
        }

        /* ========== STAT HIGHLIGHT ========== */
        .stat-block {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 24px 16px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
        }

        .stat-number {
            font-family: var(--font-display);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 6px;
        }

        /* ========== PAIN POINTS ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border-left: 4px solid var(--color-primary);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
        }

        .pain-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .pain-card h4 {
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--color-secondary);
            font-size: 1.05rem;
        }

        .pain-card p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--color-primary);
            opacity: 0.3;
            margin-bottom: 8px;
            line-height: 1;
        }

        .testimonial-card p {
            font-size: 0.93rem;
            color: var(--color-text);
            margin: 0 0 16px;
            line-height: 1.6;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--color-border-light);
            padding-top: 14px;
        }

        .testimonial-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .testimonial-author .author-info {
            font-size: 0.85rem;
            color: var(--color-text-light);
        }

        .testimonial-author .author-info strong {
            display: block;
            color: var(--color-secondary);
            font-size: 0.9rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-secondary);
            cursor: pointer;
            text-align: left;
            font-family: inherit;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question i {
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            text-align: center;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1.05rem;
            margin: 0 auto 28px;
            max-width: 500px;
            opacity: 0.9;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }

        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        .btn-white {
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            background: #f8f8f8;
            box-shadow: 0 6px 22px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro {
            background: var(--color-bg-warm);
            padding: 50px 0;
            text-align: center;
        }

        .brand-intro-inner {
            max-width: 700px;
            margin: 0 auto;
        }

        .brand-intro h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin: 0 0 16px;
        }

        .brand-intro p {
            font-size: 0.98rem;
            color: var(--color-text-light);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary);
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            font-family: var(--font-display);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
        }

        .footer-logo-sm {
            font-weight: 700;
            color: #fff;
            font-family: var(--font-display);
            letter-spacing: 0.04em;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-visual {
                align-items: center;
            }
            .invite-card {
                max-width: 100%;
            }
            .stat-block {
                grid-template-columns: repeat(2, 1fr);
            }
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 7px 10px;
                font-size: 0.85rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 12px 16px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                gap: 0;
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
                width: 100%;
                justify-content: flex-start;
            }
            .main-nav a.nav-cta-btn {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 6px;
            }
            .hero-section {
                padding: 44px 0 50px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .stat-block {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .invite-card {
                padding: 20px;
            }
            .reward-tier {
                font-size: 0.8rem;
                padding: 8px 10px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stat-block {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-item {
                padding: 16px 10px;
            }
            .card {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .container {
                padding: 0 12px;
            }
            .header-inner {
                padding: 0 12px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .invite-card h3 {
                font-size: 1.1rem;
            }
            .progress-labels {
                font-size: 0.7rem;
            }
            .reward-tiers {
                gap: 6px;
            }
            .reward-tier {
                font-size: 0.75rem;
                padding: 7px 8px;
                gap: 6px;
            }
            .reward-tier .tier-icon {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
            }
        }