/* roulang page: index */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* 顶部信息条 */
        .top-bar {
            background: #1e293b;
            color: #cbd5e1;
            font-size: 0.82rem;
            padding: 8px 0;
            letter-spacing: 0.01em;
        }
        .top-bar a {
            color: #e2e8f0;
            transition: color var(--transition-fast);
        }
        .top-bar a:hover {
            color: #ffffff;
        }

        /* 主导航 */
        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }
        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }
        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }
        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text .logo-accent {
            color: var(--color-brand);
        }

        /* 移动端导航 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }
        @media (max-width: 1024px) {
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
        }
        @media (min-width: 1025px) {
            .desktop-nav-links {
                display: flex;
                align-items: center;
                gap: 4px;
                flex-wrap: wrap;
            }
        }

        /* Hero 矮横幅 */
        .hero-banner {
            background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 30%, #f8fafc 60%, #f0f4ff 100%);
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #e2e8f0;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(45, 92, 240, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(253, 122, 20, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        /* 板块通用 */
        .section-padding {
            padding: 64px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 40px 0;
            }
            .hero-banner {
                min-height: 260px;
            }
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: #6b7280;
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 640px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-brand);
            background: #eef2ff;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* 卡片 */
        .card-elevated {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid #f1f5f9;
            transition: all var(--transition-normal);
            overflow: hidden;
        }
        .card-elevated:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #e2e8f0;
        }
        .card-cover-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            box-shadow: 0 2px 8px rgba(45, 92, 240, 0.25);
        }
        .btn-primary:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 6px 20px rgba(45, 92, 240, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(45, 92, 240, 0.2);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--color-brand);
            font-weight: 600;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-brand);
            cursor: pointer;
            transition: all var(--transition-normal);
            font-size: 0.95rem;
        }
        .btn-outline:hover {
            background: #f1f5ff;
            border-color: var(--color-brand-dark);
            color: var(--color-brand-dark);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            font-size: 0.95rem;
            box-shadow: 0 2px 8px rgba(253, 122, 20, 0.25);
        }
        .btn-accent:hover {
            background: #e8600a;
            box-shadow: 0 6px 20px rgba(253, 122, 20, 0.35);
            transform: translateY(-1px);
        }

        /* 标签 */
        .tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            background: #f1f5f9;
            color: #475569;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .tag:hover {
            background: #e2e8f0;
            color: #1e293b;
        }
        .tag-hot {
            background: #fef2f2;
            color: #dc2626;
            font-weight: 600;
        }
        .tag-new {
            background: #f0fdf4;
            color: #16a34a;
            font-weight: 600;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid #e5e7eb;
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            background: #fafbfc;
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.02rem;
            color: #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-answer {
            color: #6b7280;
            font-size: 0.95rem;
            line-height: 1.7;
            margin-top: 10px;
            display: none;
            padding-right: 40px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-brand);
        }
        .faq-icon {
            font-size: 1.3rem;
            color: #9ca3af;
            transition: all var(--transition-normal);
            flex-shrink: 0;
        }

        /* 排行表格 */
        .rank-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0 6px;
        }
        .rank-table th {
            text-align: left;
            padding: 10px 14px;
            font-size: 0.82rem;
            font-weight: 600;
            color: #6b7280;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            border-bottom: 2px solid #e5e7eb;
        }
        .rank-table td {
            padding: 12px 14px;
            font-size: 0.93rem;
            background: #ffffff;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }
        .rank-table tbody tr:hover td {
            background: #f8fafc;
            box-shadow: var(--shadow-sm);
        }
        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.82rem;
            color: #ffffff;
        }
        .rank-1 {
            background: #f59e0b;
        }
        .rank-2 {
            background: #94a3b8;
        }
        .rank-3 {
            background: #b8855c;
        }
        .rank-other {
            background: #cbd5e1;
            color: #475569;
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer a {
            color: #e2e8f0;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #ffffff;
            text-decoration: underline;
        }
        .footer-divider {
            border-color: #334155;
            margin: 28px 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
        }
        .footer-heading {
            font-weight: 700;
            color: #ffffff;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        /* 表单 */
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e5e7eb;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            background: #ffffff;
            color: #1e293b;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(45, 92, 240, 0.1);
        }
        .form-input::placeholder {
            color: #9ca3af;
        }

        /* 响应式 */
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.4rem;
            }
            .hero-banner {
                min-height: 240px;
                padding: 32px 0;
            }
            .rank-table {
                font-size: 0.82rem;
            }
            .rank-table th,
            .rank-table td {
                padding: 8px 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .btn-primary,
            .btn-outline,
            .btn-accent {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .hero-banner {
                min-height: 200px;
            }
        }

/* roulang page: category3 */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }

        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text .logo-accent {
            color: var(--color-brand);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }

        .site-footer {
            background: var(--color-darkbg);
            color: #cbd5e1;
            padding: 56px 0 32px;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .site-footer a:hover {
            color: #ffffff;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-heading {
            font-weight: 600;
            font-size: 1rem;
            color: #f1f5f9;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: #64748b;
        }

        .section-padding {
            padding: 72px 0;
        }

        .section-label {
            display: inline-block;
            background: #eef2ff;
            color: var(--color-brand);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .card-hover {
            transition: all var(--transition-normal);
            border-radius: var(--radius-lg);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .card-hover:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 14px rgba(45, 92, 240, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 6px 22px rgba(45, 92, 240, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--color-brand);
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-brand);
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #f1f5ff;
            border-color: var(--color-brand-dark);
            color: var(--color-brand-dark);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(253, 122, 20, 0.35);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: #e8690a;
            box-shadow: 0 8px 24px rgba(253, 122, 20, 0.45);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-brand);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--color-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid #f1f5f9;
            transition: all var(--transition-normal);
        }

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

        .timeline-step {
            position: relative;
            padding-left: 48px;
            padding-bottom: 36px;
        }

        .timeline-step::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: #e2e8f0;
        }

        .timeline-step:last-child::before {
            display: none;
        }

        .timeline-step .step-dot {
            position: absolute;
            left: 6px;
            top: 2px;
            width: 22px;
            height: 22px;
            background: var(--color-brand);
            border-radius: 50%;
            border: 4px solid #eef2ff;
            z-index: 1;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .container-custom {
                padding: 0 16px;
            }
            .section-padding {
                padding: 40px 0;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (min-width: 769px) {
            .desktop-nav-links {
                display: flex;
                align-items: center;
                gap: 4px;
                flex-wrap: wrap;
            }
        }
        .hero-events {
            background: linear-gradient(160deg, #f8fafc 0%, #eef3ff 35%, #f0f4ff 65%, #f8fafc 100%);
            position: relative;
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #e2e8f0;
        }
        .hero-events::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -100px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(45, 92, 240, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-events::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(253, 122, 20, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .badge-hot {
            background: #fef2f2;
            color: #dc2626;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 12px;
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }
        .glow-ring {
            box-shadow: 0 0 0 8px rgba(45, 92, 240, 0.08), 0 0 0 20px rgba(45, 92, 240, 0.04);
            border-radius: var(--radius-xl);
        }

/* roulang page: category1 */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --color-safe: #059669;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .top-bar {
            background: #1e293b;
            font-size: 0.8rem;
            padding: 8px 0;
            color: #cbd5e1;
        }

        .top-bar a {
            color: #e2e8f0;
            transition: color var(--transition-fast);
        }

        .top-bar a:hover {
            color: #ffffff;
        }

        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }

        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text .logo-accent {
            color: var(--color-brand);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }

        .section-padding {
            padding: 64px 0;
        }

        .badge-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-safe {
            background: #ecfdf5;
            color: #059669;
        }

        .badge-brand {
            background: #eef2ff;
            color: #2d5cf0;
        }

        .badge-warning {
            background: #fffbeb;
            color: #d97706;
        }

        .card-hover {
            transition: all var(--transition-normal);
        }

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

        .shield-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .shield-green {
            background: #ecfdf5;
            color: #059669;
        }

        .shield-blue {
            background: #eef2ff;
            color: #2d5cf0;
        }

        .shield-orange {
            background: #fff7ed;
            color: #f97316;
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        .time-slot-card {
            border: 2px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            cursor: pointer;
            transition: all var(--transition-normal);
            background: #ffffff;
            text-align: center;
        }

        .time-slot-card:hover {
            border-color: var(--color-brand);
            background: #f8faff;
            box-shadow: var(--shadow-md);
        }

        .time-slot-card.selected {
            border-color: var(--color-brand);
            background: #eef2ff;
            box-shadow: 0 0 0 4px rgba(45, 92, 240, 0.1);
        }

        .hero-security {
            background: linear-gradient(170deg, #f0f4ff 0%, #e8f0fe 25%, #f8fafc 55%, #f0f4ff 100%);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #e2e8f0;
        }

        .hero-security::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(45, 92, 240, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-security::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(5, 150, 105, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .site-footer a:hover {
            color: #ffffff;
        }

        .footer-heading {
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            box-shadow: 0 2px 8px rgba(45, 92, 240, 0.25);
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 6px 20px rgba(45, 92, 240, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--color-brand);
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            border: 2px solid var(--color-brand);
            transition: all var(--transition-normal);
            letter-spacing: 0.01em;
        }

        .btn-outline:hover {
            background: #eef2ff;
            border-color: var(--color-brand-dark);
            color: var(--color-brand-dark);
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: #ffffff;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #1e293b;
            font-size: 0.95rem;
            background: #fafbfc;
            transition: background var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            background: #f1f5ff;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-normal);
            color: #475569;
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            padding: 16px 24px;
            max-height: 400px;
        }

        .faq-item.open .faq-question {
            background: #eef2ff;
            color: var(--color-brand);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 1.1rem;
            color: #94a3b8;
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .section-padding {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-security {
                min-height: 320px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .container-custom {
                padding: 0 16px;
            }
            .time-slot-card {
                padding: 14px 16px;
            }
        }

        @media (max-width: 520px) {
            .stat-number {
                font-size: 1.6rem;
            }
            .hero-security {
                min-height: 280px;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .logo-text {
                font-size: 1.25rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部信息条 */
        .top-bar {
            background: #1e293b;
            color: #cbd5e1;
            font-size: 0.82rem;
            padding: 7px 0;
            letter-spacing: 0.01em;
        }
        .top-bar a {
            color: #e2e8f0;
            transition: color var(--transition-fast);
        }
        .top-bar a:hover {
            color: #ffffff;
        }

        /* 主导航 */
        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }
        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }
        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }
        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text .logo-accent {
            color: var(--color-brand);
        }

        /* 移动端导航 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }

        /* 板块通用 */
        .section-padding {
            padding: 64px 0;
        }

        /* 按钮样式 */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-brand);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            box-shadow: 0 4px 14px rgba(45, 92, 240, 0.3);
            white-space: nowrap;
        }
        .btn-brand:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 6px 22px rgba(45, 92, 240, 0.4);
            transform: translateY(-1px);
            color: #ffffff;
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(45, 92, 240, 0.25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-brand);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-brand);
            transition: all var(--transition-normal);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: #f1f5ff;
            border-color: var(--color-brand-dark);
            color: var(--color-brand-dark);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            box-shadow: 0 4px 14px rgba(253, 122, 20, 0.3);
            white-space: nowrap;
        }
        .btn-accent:hover {
            background: #e56a0a;
            box-shadow: 0 6px 22px rgba(253, 122, 20, 0.4);
            transform: translateY(-1px);
            color: #ffffff;
        }

        /* 卡片 */
        .card-standard {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
        }
        .card-standard:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }
        .faq-item:hover .faq-question {
            color: var(--color-brand);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition-fast);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.4s ease;
            color: #475569;
            font-size: 0.95rem;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 12px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-brand);
        }
        .faq-icon {
            transition: transform 0.35s ease, color var(--transition-fast);
            flex-shrink: 0;
            color: #94a3b8;
            font-size: 0.9rem;
        }

        /* 倒计时 */
        .countdown-block {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .countdown-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 14px 18px;
            text-align: center;
            min-width: 70px;
            box-shadow: var(--shadow-md);
            border: 1px solid #e2e8f0;
        }
        .countdown-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .countdown-label {
            font-size: 0.78rem;
            color: #64748b;
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* 流程步骤 */
        .step-connector {
            position: relative;
        }
        .step-connector::after {
            content: '';
            position: absolute;
            top: 32px;
            left: calc(50% + 30px);
            width: calc(100% - 60px);
            height: 2px;
            background: linear-gradient(90deg, var(--color-brand) 0%, #e2e8f0 100%);
            z-index: 0;
        }
        .step-connector:last-child::after {
            display: none;
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 28px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .footer-heading {
            font-weight: 600;
            color: #e2e8f0;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .countdown-item {
                min-width: 56px;
                padding: 10px 12px;
            }
            .countdown-number {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-padding {
                padding: 40px 0;
            }
            .step-connector::after {
                display: none;
            }
            .countdown-block {
                gap: 8px;
            }
            .countdown-item {
                min-width: 50px;
                padding: 8px 10px;
            }
            .countdown-number {
                font-size: 1.3rem;
            }
        }

        @media (min-width: 769px) {
            .desktop-nav-links {
                display: flex;
                align-items: center;
                gap: 4px;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .countdown-block {
                gap: 6px;
            }
            .countdown-item {
                min-width: 44px;
                padding: 7px 8px;
                border-radius: var(--radius-sm);
            }
            .countdown-number {
                font-size: 1.1rem;
            }
            .countdown-label {
                font-size: 0.7rem;
            }
            .btn-brand,
            .btn-outline,
            .btn-accent {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
        }

/* roulang page: category5 */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .top-bar {
            background: #1a1f36;
            color: #cbd5e1;
            font-size: 0.8rem;
            padding: 6px 0;
            border-bottom: 1px solid #2d3348;
        }

        .top-bar a {
            color: #e2e8f0;
            transition: color var(--transition-fast);
        }

        .top-bar a:hover {
            color: #ffffff;
        }

        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }

        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text .logo-accent {
            color: var(--color-brand);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
        }

        @media (min-width: 1025px) {
            .desktop-nav-links {
                display: flex;
                align-items: center;
                gap: 4px;
                flex-wrap: wrap;
            }
        }

        .section-padding {
            padding: 64px 0;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--color-brand-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--color-brand);
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-brand);
            transition: all var(--transition-normal);
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eef2ff;
            border-color: var(--color-brand-dark);
            color: var(--color-brand-dark);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: #e56a0a;
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

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

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

        .badge-tag {
            display: inline-block;
            background: #eef2ff;
            color: var(--color-brand);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .badge-accent {
            display: inline-block;
            background: #fff7ed;
            color: var(--color-accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .badge-success {
            display: inline-block;
            background: #ecfdf5;
            color: #059669;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .site-footer {
            background: var(--color-darkbg);
            color: #cbd5e1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .site-footer .footer-heading {
            color: #ffffff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .site-footer a:hover {
            color: #ffffff;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #2d3348;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #6b7280;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            margin: 0 8px;
        }

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

        .progress-bar-wrap {
            background: #e5e7eb;
            border-radius: 20px;
            height: 14px;
            overflow: hidden;
            width: 100%;
        }

        .progress-bar-fill {
            background: linear-gradient(90deg, #2d5cf0, #4f7df8);
            height: 100%;
            border-radius: 20px;
            transition: width 0.8s ease;
        }

        .progress-bar-fill.accent-fill {
            background: linear-gradient(90deg, #fd7a14, #fd9a44);
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            background: #ffffff;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #1e293b;
            font-size: 1rem;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            transition: transform var(--transition-fast);
            color: var(--color-brand);
            font-size: 0.9rem;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: #475569;
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .faq-item:hover {
            border-color: #c7d2fe;
            box-shadow: var(--shadow-sm);
        }

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

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

        .testimonial-card::before {
            content: '\201C';
            font-size: 4rem;
            color: #e0e7ff;
            position: absolute;
            top: 10px;
            left: 20px;
            line-height: 1;
            font-family: serif;
            pointer-events: none;
        }

        .hero-security {
            background: linear-gradient(160deg, #f0f4ff 0%, #e8f0fe 25%, #fdfcfb 55%, #fff7ed 80%, #f0f4ff 100%);
            position: relative;
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #e2e8f0;
        }

        .hero-security::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(45, 92, 240, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-security::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(253, 122, 20, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        @media (max-width: 768px) {
            .hero-security {
                min-height: auto;
                padding: 40px 0;
            }
        }

        .shield-icon-wrap {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #eef2ff, #dbe4ff);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--color-brand);
            flex-shrink: 0;
        }

        .step-number {
            width: 40px;
            height: 40px;
            background: var(--color-brand);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .section-alt-bg {
            background: #f8fafc;
            border-top: 1px solid #e5e7eb;
            border-bottom: 1px solid #e5e7eb;
        }

        .section-dark-bg {
            background: #0f172a;
            color: #e2e8f0;
        }

        .divider-dot {
            width: 6px;
            height: 6px;
            background: var(--color-brand);
            border-radius: 50%;
            display: inline-block;
            margin: 0 10px;
            vertical-align: middle;
            opacity: 0.5;
        }

/* roulang page: category4 */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --color-gold: #d4a843;
            --color-gold-light: #fdf3d0;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .top-bar a {
            color: #e2e8f0;
            transition: color var(--transition-fast);
        }

        .top-bar a:hover {
            color: #ffffff;
        }

        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }

        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text .logo-accent {
            color: var(--color-brand);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
        }

        @media (min-width: 1025px) {
            .desktop-nav-links {
                display: flex;
                align-items: center;
                gap: 4px;
                flex-wrap: wrap;
            }
        }

        .section-padding {
            padding: 64px 0;
        }

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

        .card-hover {
            transition: all var(--transition-normal);
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-brand);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--color-brand-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #ffffff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
            border: none;
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #e86a0a;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #ffffff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-brand);
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            transition: all var(--transition-normal);
            border: 2px solid var(--color-brand);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: #f1f5ff;
            border-color: var(--color-brand-dark);
            color: var(--color-brand-dark);
        }

        .tag-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .tag-gold {
            background: var(--color-gold-light);
            color: #8b6914;
        }

        .tag-brand {
            background: #eef2ff;
            color: var(--color-brand);
        }

        .tag-accent {
            background: #fff7ed;
            color: var(--color-accent);
        }

        .site-footer {
            background: var(--color-darkbg);
            color: #cbd5e1;
            padding: 48px 0 24px;
            font-size: 0.95rem;
        }

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

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .site-footer .footer-heading {
            font-weight: 700;
            font-size: 1rem;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li a {
            color: #94a3b8;
            transition: color var(--transition-fast);
            font-size: 0.9rem;
        }

        .site-footer ul li a:hover {
            color: #ffffff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #1e293b;
            margin-top: 36px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

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

        .vip-gold-glow {
            box-shadow: 0 0 40px rgba(212, 168, 67, 0.25), 0 8px 32px rgba(0, 0, 0, 0.08);
        }

        .vip-diamond-glow {
            box-shadow: 0 0 48px rgba(45, 92, 240, 0.3), 0 12px 40px rgba(0, 0, 0, 0.1);
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            grid-template-rows: auto auto;
            gap: 16px;
        }

        @media (max-width: 768px) {
            .bento-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
        }

        .bento-main {
            grid-row: span 2;
        }

        @media (max-width: 768px) {
            .bento-main {
                grid-row: span 1;
            }
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            color: var(--color-brand);
        }

        .faq-item summary {
            font-weight: 600;
            font-size: 1.05rem;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item .faq-answer {
            margin-top: 10px;
            color: var(--color-muted);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .vip-tier-card {
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .vip-tier-card:hover {
            transform: translateY(-6px);
        }

        .vip-tier-card.tier-diamond {
            background: linear-gradient(135deg, #1a237e 0%, #283593 40%, #1a40d4 100%);
            color: #ffffff;
        }

        .vip-tier-card.tier-platinum {
            background: linear-gradient(135deg, #37474f 0%, #455a64 40%, #607d8b 100%);
            color: #ffffff;
        }

        .vip-tier-card.tier-gold {
            background: linear-gradient(135deg, #f9a825 0%, #ffb300 30%, #ffc107 100%);
            color: #3e2723;
        }

        .vip-tier-card.tier-silver {
            background: linear-gradient(135deg, #eceff1 0%, #cfd8dc 50%, #b0bec5 100%);
            color: #37474f;
        }

        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border-left: 4px solid var(--color-brand);
        }

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

/* roulang page: category6 */
:root {
            --color-brand: #2d5cf0;
            --color-brand-dark: #1a40d4;
            --color-accent: #fd7a14;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-darkbg: #0f172a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background-color: #fafbfc;
            color: #1e293b;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* 主导航 */
        .main-nav {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .main-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: #475569;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover {
            color: var(--color-brand);
            background: #f1f5ff;
        }
        .main-nav .nav-link.active {
            color: var(--color-brand);
            background: #eef2ff;
            font-weight: 600;
        }
        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px 3px 0 0;
        }
        .logo-text {
            font-weight: 700;
            font-size: 1.5rem;
            color: #1e293b;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text .logo-accent {
            color: var(--color-brand);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #1e293b;
            padding: 8px;
            cursor: pointer;
        }
        @media (max-width: 1024px) {
            .mobile-menu-btn {
                display: block;
            }
            .desktop-nav-links {
                display: none;
            }
            .desktop-nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 6px;
                z-index: 99;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
        }
        @media (min-width: 1025px) {
            .desktop-nav-links {
                display: flex;
                align-items: center;
                gap: 4px;
                flex-wrap: wrap;
            }
        }

        /* Hero */
        .hero-support {
            background: linear-gradient(160deg, #f0f4ff 0%, #e8f0fe 25%, #f8fafc 55%, #fef7ed 100%);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #e2e8f0;
        }
        .hero-support::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(45, 92, 240, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-support::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -30px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(253, 122, 20, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-support .search-box {
            background: #ffffff;
            border: 2px solid #e5e7eb;
            border-radius: 50px;
            padding: 14px 20px 14px 24px;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            max-width: 540px;
        }
        .hero-support .search-box:focus-within {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-lg), 0 0 0 4px rgba(45, 92, 240, 0.08);
        }
        .hero-support .search-box input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 1rem;
            color: #1e293b;
            background: transparent;
            min-width: 0;
        }
        .hero-support .search-box input::placeholder {
            color: #9ca3af;
        }
        .hero-support .search-box button {
            background: var(--color-brand);
            color: #fff;
            border-radius: 50px;
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .hero-support .search-box button:hover {
            background: var(--color-brand-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        @media (max-width: 640px) {
            .hero-support {
                min-height: 340px;
            }
            .hero-support .search-box {
                flex-direction: column;
                padding: 12px 16px;
                border-radius: 16px;
                gap: 10px;
            }
            .hero-support .search-box input {
                width: 100%;
                padding: 8px 0;
            }
            .hero-support .search-box button {
                width: 100%;
                text-align: center;
                padding: 12px;
            }
        }

        /* 板块间距 */
        .section-padding {
            padding: 64px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 40px 0;
            }
        }

        /* 卡片 */
        .card-support {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-support:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }
        .card-support .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-icon.blue {
            background: #eef2ff;
            color: #2d5cf0;
        }
        .card-icon.orange {
            background: #fff7ed;
            color: #fd7a14;
        }
        .card-icon.green {
            background: #ecfdf5;
            color: #10b981;
        }
        .card-icon.purple {
            background: #f5f3ff;
            color: #7c3aed;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: #ffffff;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            padding: 18px 20px;
            background: #ffffff;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: #1e293b;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            background: #f8fafc;
            color: var(--color-brand);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-normal);
            font-size: 0.85rem;
            color: #64748b;
        }
        .faq-item.open .faq-question .faq-icon {
            background: #eef2ff;
            color: #2d5cf0;
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            color: #475569;
            font-size: 0.95rem;
            line-height: 1.8;
            background: #fafbfc;
            border-top: 0px solid transparent;
            transition: all 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 20px;
            border-top: 1px solid #e5e7eb;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1e3a8a 0%, #1a40d4 40%, #2d5cf0 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .site-footer .footer-heading {
            font-weight: 700;
            font-size: 1rem;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 统计数字 */
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        @media (max-width: 640px) {
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* 步骤流程 */
        .step-item {
            position: relative;
            padding-left: 52px;
        }
        .step-item .step-circle {
            position: absolute;
            left: 0;
            top: 2px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #eef2ff;
            color: #2d5cf0;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-item+.step-item {
            margin-top: 28px;
        }
        .step-item+.step-item::before {
            content: '';
            position: absolute;
            left: 17px;
            top: -20px;
            width: 2px;
            height: 20px;
            background: #e5e7eb;
        }

        /* 证言卡片 */
        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .testimonial-card::before {
            content: '"';
            font-size: 4rem;
            color: #e5e7eb;
            position: absolute;
            top: 8px;
            left: 16px;
            line-height: 1;
            font-family: Georgia, serif;
            pointer-events: none;
        }

        /* 标签 */
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
        }
        .tag-blue {
            background: #eef2ff;
            color: #2d5cf0;
        }
        .tag-orange {
            background: #fff7ed;
            color: #fd7a14;
        }
        .tag-green {
            background: #ecfdf5;
            color: #10b981;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--color-brand-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: #2d5cf0;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 0.95rem;
            border: 2px solid #2d5cf0;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: #eef2ff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* 高亮背景块 */
        .highlight-bg {
            background: #f8fafc;
            border-radius: var(--radius-lg);
            border: 1px solid #e5e7eb;
            padding: 32px;
        }
        @media (max-width: 640px) {
            .highlight-bg {
                padding: 20px;
            }
        }

        /* 分割线 */
        .divider-light {
            height: 1px;
            background: #e5e7eb;
            margin: 0;
            border: none;
        }