/* roulang page: index */
:root {
            --primary: #3A1D6E;
            --secondary: #FFD700;
            --primary-dark: #2A1554;
            --primary-light: #5A3D9E;
            --accent-green: #10B981;
            --accent-red: #EF4444;
            --bg-light: #F7F7FC;
            --text-primary: #1F1F2E;
            --text-secondary: #555568;
            --dark-bg: #1A0D3B;
            --white: #FFFFFF;
            --border-color: #E5E7EB;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --radius-full: 9999px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        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;
            color: var(--text-primary);
            background: var(--white);
            line-height: 1.75;
            font-size: 1rem;
        }

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

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

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        .section-padding {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        /* === Dock 导航 === */
        .nav-dock {
            position: fixed;
            top: 1rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.5rem 1.25rem;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-sm);
            transition: background var(--transition), box-shadow var(--transition);
            max-width: 1200px;
            width: calc(100% - 2rem);
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-md);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--primary);
            white-space: nowrap;
        }

        .nav-logo i {
            font-size: 1.3rem;
            color: var(--secondary);
        }

        .nav-links {
            display: none;
            gap: 0.25rem;
            list-style: none;
            align-items: center;
        }

        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            padding: 0.4rem 0.85rem;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(58, 29, 110, 0.08);
            color: var(--primary);
        }

        .nav-links a.active {
            font-weight: 600;
            background: rgba(58, 29, 110, 0.12);
        }

        .nav-cta {
            display: none;
            padding: 0.45rem 1.25rem;
            background: var(--primary);
            color: var(--white);
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }

        @media (min-width: 768px) {
            .nav-cta {
                display: inline-block;
            }
        }

        .nav-hamburger {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 2.25rem;
            height: 2.25rem;
            border: none;
            background: transparent;
            cursor: pointer;
            color: var(--text-primary);
            font-size: 1.3rem;
            border-radius: var(--radius-sm);
        }

        @media (min-width: 768px) {
            .nav-hamburger {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(26, 13, 59, 0.97);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
            padding: 2rem;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            color: var(--white);
            font-size: 1.3rem;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-md);
            transition: background var(--transition);
        }

        .mobile-menu a:hover {
            background: rgba(255, 215, 0, 0.15);
        }

        .mobile-menu .close-btn {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            background: none;
            border: none;
            color: var(--white);
            font-size: 2rem;
            cursor: pointer;
        }

        /* === Hero === */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1A0D3B 0%, #2A1554 40%, #3A1D6E 70%, #1A0D3B 100%);
            overflow: hidden;
            padding-top: 5rem;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 80%, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            padding: 2rem 1.5rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 1.2rem;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-full);
            color: var(--secondary);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(4px);
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--white);
            margin-bottom: 1.2rem;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--secondary), #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-full);
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
        }

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            background: transparent;
            color: var(--white);
            font-weight: 600;
            font-size: 1.05rem;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem 3rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.2rem;
        }

        /* === 板块通用 === */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            text-align: center;
            margin-bottom: 0.75rem;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.5rem;
            }
        }

        .bg-alt {
            background: var(--bg-light);
        }

        .bg-dark {
            background: var(--dark-bg);
        }

        .bg-dark .section-title {
            color: var(--white);
        }

        .bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* === 卡片 === */
        .card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-md);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
        }

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

        .card-icon {
            width: 3rem;
            height: 3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(58, 29, 110, 0.08);
            border-radius: var(--radius-md);
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* === 特色网格 2x2 === */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* === 演示区块 === */
        .demo-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        @media (min-width: 768px) {
            .demo-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .demo-image {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            background: var(--bg-light);
        }

        .demo-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        .demo-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .demo-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1.25rem;
        }

        .demo-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.3rem 0.9rem;
            background: rgba(58, 29, 110, 0.06);
            color: var(--primary);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* === 证据 / 信任 === */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .trust-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .trust-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .trust-item .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }

        .trust-item .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
        }

        .trust-item .desc {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.15rem;
        }

        /* === 价格 === */
        .pricing-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .pricing-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .pricing-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
        }

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

        .pricing-card.featured {
            border: 2px solid var(--secondary);
            transform: scale(1.02);
        }

        .pricing-card.featured:hover {
            transform: scale(1.02) translateY(-4px);
        }

        .pricing-badge {
            position: absolute;
            top: -0.75rem;
            left: 50%;
            transform: translateX(-50%);
            padding: 0.25rem 1.2rem;
            background: var(--secondary);
            color: var(--primary-dark);
            font-size: 0.8rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            white-space: nowrap;
        }

        .pricing-card .plan-name {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.75rem;
        }

        .pricing-card .price {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .pricing-card .price span {
            font-size: 1rem;
            font-weight: 400;
            color: var(--text-secondary);
        }

        .pricing-card .features {
            list-style: none;
            margin: 1.5rem 0;
            padding: 0;
        }

        .pricing-card .features li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        }

        .pricing-card .features li i {
            color: var(--accent-green);
            font-size: 0.85rem;
        }

        .btn-pricing {
            display: block;
            width: 100%;
            padding: 0.75rem;
            background: var(--primary);
            color: var(--white);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
            text-align: center;
        }

        .btn-pricing:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }

        .btn-pricing.featured-btn {
            background: var(--secondary);
            color: var(--primary-dark);
        }

        .btn-pricing.featured-btn:hover {
            background: #e6c200;
        }

        /* === FAQ === */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 1.1rem 1.5rem;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(58, 29, 110, 0.03);
        }

        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: transform var(--transition);
        }

        .faq-question.open i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }

        /* === CTA 区块 === */
        .cta-section {
            background: linear-gradient(135deg, var(--dark-bg) 0%, #2A1554 50%, var(--dark-bg) 100%);
            padding: 4rem 2rem;
            text-align: center;
            border-radius: var(--radius-xl);
            margin: 0 1rem;
        }

        @media (min-width: 768px) {
            .cta-section {
                padding: 5rem 3rem;
                margin: 0 1.5rem;
            }
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: center;
            max-width: 520px;
            margin: 0 auto;
        }

        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.85rem 1.5rem;
            border: none;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.12);
            color: var(--white);
            outline: none;
            transition: background var(--transition);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            background: rgba(255, 255, 255, 0.18);
        }

        .cta-form button {
            padding: 0.85rem 2rem;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            border-radius: var(--radius-full);
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .cta-form button:hover {
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
        }

        /* === 最新资讯列表 === */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .news-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .news-card .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }

        .news-card .cat-tag {
            display: inline-block;
            padding: 0.2rem 0.75rem;
            background: rgba(58, 29, 110, 0.08);
            color: var(--primary);
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 500;
            margin-bottom: 0.6rem;
        }

        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
        }

        .news-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .news-card .meta .date {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .news-card .read-more {
            color: var(--primary);
            font-weight: 500;
            font-size: 0.85rem;
            transition: color var(--transition);
        }

        .news-card .read-more:hover {
            color: var(--primary-light);
        }

        .empty-news {
            text-align: center;
            padding: 3rem 1.5rem;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            color: var(--text-secondary);
            font-size: 1rem;
        }

        .empty-news i {
            font-size: 2.5rem;
            color: var(--border-color);
            margin-bottom: 1rem;
            display: block;
        }

        /* === 页脚 === */
        .footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: 4rem 2rem 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-brand h3 i {
            color: var(--secondary);
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            max-width: 1200px;
            margin: 2rem auto 0;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

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

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

        /* === 浮动 CTA === */
        .float-cta {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 800;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
        }

        .float-cta-btn {
            width: 3.5rem;
            height: 3.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: 50%;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 6px 20px rgba(58, 29, 110, 0.35);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .float-cta-btn:hover {
            transform: scale(1.08);
            box-shadow: 0 10px 30px rgba(58, 29, 110, 0.45);
        }

        .float-cta-label {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.9);
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-full);
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-sm);
            white-space: nowrap;
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .pricing-card.featured {
                transform: none;
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }
            .float-cta {
                bottom: 1.25rem;
                right: 1.25rem;
            }
            .float-cta-btn {
                width: 3rem;
                height: 3rem;
                font-size: 1.1rem;
            }
            .nav-dock {
                width: calc(100% - 1rem);
                top: 0.5rem;
                padding: 0.4rem 0.75rem;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.2rem 2rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 380px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .nav-logo span {
                font-size: 0.85rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #3A1D6E;
            --primary-dark: #2a1452;
            --primary-light: #5a3d8e;
            --gold: #FFD700;
            --gold-dark: #e6c200;
            --bg-light: #F7F7FC;
            --text-body: #1F1F2E;
            --text-muted: #555568;
            --success: #10B981;
            --danger: #EF4444;
            --radius-card: 1.25rem;
            --radius-btn: 9999px;
            --shadow-card: 0 4px 20px rgba(58, 29, 110, 0.08);
            --shadow-hover: 0 12px 40px rgba(58, 29, 110, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
            background: #ffffff;
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 0.75rem;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            transition: var(--transition);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ========== Navigation Dock ========== */
        .nav-dock {
            position: fixed;
            top: 1.25rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 0.6rem 1.2rem;
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(200, 200, 215, 0.4);
            border-radius: 9999px;
            box-shadow: 0 4px 24px rgba(58, 29, 110, 0.06);
            width: calc(100% - 2.5rem);
            max-width: 1100px;
            transition: var(--transition);
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 6px 32px rgba(58, 29, 110, 0.10);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo i {
            font-size: 1.3rem;
            color: var(--gold);
        }

        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links li a {
            display: block;
            padding: 0.35rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            background: var(--primary);
            color: #ffffff;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1.2rem;
            border-radius: 9999px;
            background: var(--gold);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: #ffed4a;
            color: var(--primary-dark);
            transform: scale(1.02);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
        }

        .nav-hamburger {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .nav-dock {
                top: 0.75rem;
                padding: 0.5rem 1rem;
                border-radius: 2rem;
                width: calc(100% - 1.2rem);
            }

            .nav-links {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 0.8rem;
                z-index: 999;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li a {
                font-size: 1.3rem;
                padding: 0.6rem 1.8rem;
            }

            .nav-hamburger {
                display: block;
            }

            .nav-cta {
                display: none;
            }

            .nav-links.open+.nav-cta {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .nav-logo span {
                font-size: 0.95rem;
            }
            .nav-logo i {
                font-size: 1.1rem;
            }
        }

        /* ========== Mobile overlay close ========== */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 998;
            background: transparent;
        }

        .nav-overlay.active {
            display: block;
        }

        /* ========== Article Layout ========== */
        .article-hero {
            position: relative;
            padding-top: 7rem;
            padding-bottom: 2.5rem;
            background: linear-gradient(135deg, #1A0D3B 0%, #2a1452 50%, #3A1D6E 100%);
            min-height: 30vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
            color: #ffffff;
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 0 0 1rem 0;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.2rem;
            flex-wrap: wrap;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
        }

        .article-meta .meta-cat {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: rgba(255, 215, 0, 0.2);
            color: var(--gold);
            padding: 0.2rem 0.9rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.85rem;
        }

        .article-meta .meta-date {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--bg-light);
            border-bottom: 1px solid rgba(58, 29, 110, 0.06);
            padding: 0.8rem 0;
        }

        .breadcrumb-wrap .container {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .breadcrumb-wrap a {
            color: var(--primary);
            font-weight: 500;
        }

        .breadcrumb-wrap a:hover {
            color: var(--primary-light);
        }

        .breadcrumb-wrap .sep {
            color: #bbb;
            margin: 0 0.2rem;
        }

        /* Article Content */
        .article-main {
            padding: 3rem 0 4rem 0;
            background: #ffffff;
        }

        .article-body {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-body);
        }

        .article-body p {
            margin-bottom: 1.5rem;
        }

        .article-body h2,
        .article-body h3,
        .article-body h4 {
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .article-body h2 {
            font-size: 1.65rem;
        }

        .article-body h3 {
            font-size: 1.35rem;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.5rem;
            padding-left: 1.8rem;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body blockquote {
            border-left: 4px solid var(--gold);
            background: var(--bg-light);
            padding: 1.2rem 1.8rem;
            margin: 1.8rem 0;
            border-radius: 0 0.75rem 0.75rem 0;
            font-style: italic;
            color: var(--text-muted);
        }

        .article-body img {
            margin: 2rem auto;
            border-radius: 1rem;
            box-shadow: var(--shadow-card);
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-body a:hover {
            color: var(--gold-dark);
        }

        .article-body code {
            background: #f1f1f6;
            padding: 0.15rem 0.5rem;
            border-radius: 0.4rem;
            font-size: 0.9em;
        }

        /* Not Found */
        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
        }

        .article-not-found .icon-big {
            font-size: 4rem;
            color: #ccc;
            margin-bottom: 1rem;
        }

        .article-not-found h2 {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 2rem;
            background: var(--primary);
            color: #fff;
            border-radius: 9999px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-back-home:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        /* Back to list */
        .article-footer-nav {
            max-width: 800px;
            margin: 2.5rem auto 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(58, 29, 110, 0.08);
        }

        .btn-back-list {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.6rem;
            background: var(--bg-light);
            color: var(--primary);
            border-radius: 9999px;
            font-weight: 500;
            border: 1px solid rgba(58, 29, 110, 0.12);
            transition: var(--transition);
        }

        .btn-back-list:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        /* Related Posts */
        .related-section {
            background: var(--bg-light);
            padding: 3.5rem 0;
        }

        .related-section .section-title {
            text-align: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2.5rem;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 1.8rem;
        }

        .related-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid rgba(58, 29, 110, 0.04);
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(58, 29, 110, 0.10);
        }

        .related-card .rc-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--gold-dark);
            background: rgba(255, 215, 0, 0.12);
            padding: 0.15rem 0.7rem;
            border-radius: 9999px;
            margin-bottom: 0.6rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .related-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-body);
            margin: 0 0 0.4rem 0;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .rc-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .related-card a {
            color: inherit;
        }

        .related-card a:hover h4 {
            color: var(--primary);
        }

        /* ========== Footer ========== */
        .footer {
            background: #1A0D3B;
            color: rgba(255, 255, 255, 0.85);
            padding: 3.5rem 0 1.5rem 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.8rem 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-brand h3 i {
            color: var(--gold);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            margin: 0 0 1rem 0;
        }

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

        .footer-col ul li {
            margin-bottom: 0.55rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--gold);
            transform: translateX(3px);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 2.5rem auto 0 auto;
            padding: 1.2rem 1.5rem 0 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }

            .footer-brand h3 {
                justify-content: center;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== Responsive fixes ========== */
        @media (max-width: 640px) {
            .article-hero {
                padding-top: 6rem;
                padding-bottom: 2rem;
                min-height: 25vh;
            }
            .article-hero h1 {
                font-size: 1.6rem;
            }
            .article-meta {
                font-size: 0.8rem;
                gap: 0.8rem;
            }
            .article-body {
                font-size: 0.98rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-footer-nav {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .btn-back-list,
            .btn-back-home {
                justify-content: center;
            }
        }

        /* ========== Scrollbar ========== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary-light);
            border-radius: 8px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ========== JSON-LD inline ========== */
        .json-ld-wrap {
            display: none;
        }

/* roulang page: category1 */
:root {
            --primary: #3A1D6E;
            --primary-light: #5B3A9E;
            --primary-dark: #1A0D3B;
            --accent: #FFD700;
            --accent-light: #FFE44D;
            --accent-dark: #D4B100;
            --bg-light: #F7F7FC;
            --bg-white: #FFFFFF;
            --text-primary: #1F1F2E;
            --text-secondary: #555568;
            --text-white: #FFFFFF;
            --success: #10B981;
            --error: #EF4444;
            --border-light: #E5E7EB;
            --radius-card: 1rem;
            --radius-button: 9999px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-light);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (min-width: 768px) {
            .container {
                padding: 0 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding: 0 2.5rem;
            }
        }

        /* ===== Navigation Dock ===== */
        .nav-dock {
            position: fixed;
            top: 1rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            padding: 0.6rem 1.6rem;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: 9999px;
            box-shadow: var(--shadow-sm);
            width: calc(100% - 2rem);
            max-width: 1100px;
            transition: var(--transition);
        }
        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-md);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            white-space: nowrap;
        }
        .nav-logo i {
            font-size: 1.3rem;
            color: var(--accent);
        }
        .nav-logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            list-style: none;
        }
        .nav-links li a {
            display: block;
            padding: 0.4rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .nav-links li a:hover,
        .nav-links li a:focus-visible {
            color: var(--primary);
            background: rgba(58, 29, 110, 0.08);
        }
        .nav-links li a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 2px 8px rgba(58, 29, 110, 0.3);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.4rem;
            border-radius: 9999px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.85rem;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover,
        .nav-cta:focus-visible {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.45);
        }
        .nav-cta:active {
            transform: scale(0.96);
        }
        .nav-hamburger {
            display: none;
            background: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 0.2rem 0.6rem;
            cursor: pointer;
            border-radius: 8px;
        }
        .nav-hamburger:hover {
            background: rgba(58, 29, 110, 0.08);
        }
        @media (max-width: 767px) {
            .nav-dock {
                padding: 0.5rem 1.2rem;
                top: 0.75rem;
                border-radius: 40px;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(255, 255, 255, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 1.2rem;
                z-index: 2000;
                padding: 2rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                font-size: 1.2rem;
                padding: 0.8rem 2rem;
            }
            .nav-hamburger {
                display: block;
                z-index: 2100;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta.mobile-show {
                display: inline-flex;
                margin-top: 0.8rem;
            }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .nav-links li a {
                padding: 0.3rem 0.6rem;
                font-size: 0.78rem;
            }
            .nav-cta {
                padding: 0.4rem 1rem;
                font-size: 0.78rem;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 8rem 1.5rem 4rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2D1B69 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 215, 0, 0.06) 0%, transparent 60%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            text-align: center;
        }
        .hero-content h1 {
            font-size: clamp(2.2rem, 6vw, 3.8rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 1.2rem;
        }
        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto 2rem;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.8rem 1.5rem;
            margin-bottom: 2.2rem;
        }
        .hero-badges span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            background: rgba(255, 255, 255, 0.1);
            padding: 0.3rem 1rem;
            border-radius: 9999px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-badges span i {
            color: var(--accent);
            font-size: 0.75rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.4rem;
            border-radius: 9999px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.4);
            transition: var(--transition);
        }
        .btn-primary:hover,
        .btn-primary:focus-visible {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 36px rgba(255, 215, 0, 0.55);
        }
        .btn-primary:active {
            transform: scale(0.96);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.4rem;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .btn-secondary:hover,
        .btn-secondary:focus-visible {
            background: rgba(255, 255, 255, 0.22);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 70vh;
                padding: 7rem 1rem 3rem;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-badges span {
                font-size: 0.75rem;
                padding: 0.2rem 0.8rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.7rem 1.8rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Intro Section ===== */
        .section-intro {
            padding: 5rem 0;
            background: var(--bg-white);
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .intro-text h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 1.2rem;
        }
        .intro-text h2 i {
            color: var(--accent);
        }
        .intro-text p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 1.2rem;
        }
        .intro-text .tag {
            display: inline-block;
            padding: 0.2rem 1rem;
            border-radius: 9999px;
            background: rgba(58, 29, 110, 0.08);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 0.8rem;
        }
        .intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        @media (max-width: 767px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .intro-image {
                order: -1;
            }
        }

        /* ===== Steps Section ===== */
        .section-steps {
            padding: 5rem 0;
            background: var(--bg-light);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3.5rem;
        }
        .section-title h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.8rem;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(58, 29, 110, 0.15);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 1rem;
            box-shadow: 0 4px 12px rgba(58, 29, 110, 0.25);
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .step-connector {
            display: none;
        }
        @media (min-width: 768px) {
            .step-card {
                position: relative;
            }
            .step-card:not(:last-child)::after {
                content: '\f054';
                font-family: 'Font Awesome 6 Free';
                font-weight: 900;
                position: absolute;
                right: -1.2rem;
                top: 50%;
                transform: translateY(-50%);
                color: var(--accent);
                font-size: 1rem;
                opacity: 0.6;
            }
        }
        @media (max-width: 767px) {
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Scenarios Section ===== */
        .section-scenarios {
            padding: 5rem 0;
            background: var(--bg-white);
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .scenario-card {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            background: var(--bg-white);
            transition: var(--transition);
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .scenario-card .card-img {
            height: 200px;
            overflow: hidden;
            background: var(--bg-light);
        }
        .scenario-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .scenario-card .card-body {
            padding: 1.5rem;
        }
        .scenario-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .scenario-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .scenario-card .card-body .badge {
            display: inline-block;
            padding: 0.15rem 0.8rem;
            border-radius: 9999px;
            background: rgba(58, 29, 110, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 500;
            margin-bottom: 0.6rem;
        }
        @media (max-width: 767px) {
            .scenarios-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .scenarios-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== FAQ Section ===== */
        .section-faq {
            padding: 5rem 0;
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: 1rem;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(58, 29, 110, 0.15);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 1.2rem 1.5rem;
            background: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            gap: 1rem;
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 500px;
            padding: 0 1.5rem 1.2rem;
        }
        @media (max-width: 520px) {
            .faq-question {
                padding: 1rem 1.2rem;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 1.2rem;
                font-size: 0.88rem;
            }
            .faq-answer.open {
                padding: 0 1.2rem 1rem;
            }
        }

        /* ===== CTA Section ===== */
        .section-cta {
            padding: 5rem 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }
        .section-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }
        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .cta-content .btn-primary {
            font-size: 1.1rem;
            padding: 1rem 3rem;
        }
        .cta-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem 3rem;
            margin-top: 2.5rem;
        }
        .cta-stats .stat-item {
            text-align: center;
        }
        .cta-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
        }
        .cta-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 520px) {
            .cta-stats {
                gap: 1.5rem;
            }
            .cta-stats .stat-number {
                font-size: 1.5rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #1A0D3B;
            color: rgba(255, 255, 255, 0.85);
            padding: 4rem 1.5rem 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-brand h3 i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 2.5rem auto 0;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom span:last-child {
            color: rgba(255, 215, 0, 0.6);
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 999;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 9999px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-light);
        }

        /* ===== Utility ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }