/* roulang page: index */
:root {
            --color-primary: #1e40af;
            --color-primary-light: #3b82f6;
            --color-primary-dark: #1a3480;
            --color-accent: #f97316;
            --color-accent-light: #fb923c;
            --color-accent-dark: #ea580c;
            --color-surface: #f8fafc;
            --color-surface-alt: #f1f5f9;
            --color-text: #1e293b;
            --color-text-soft: #475569;
            --color-muted: #64748b;
            --color-muted-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 0.875rem;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.06), 0 1px 2px -1px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.06);
            --shadow-nav: 0 1px 3px 0 rgba(0,0,0,0.04);
            --shadow-btn: 0 2px 4px -1px rgba(0,0,0,0.08);
            --shadow-btn-hover: 0 8px 20px -4px rgba(30,64,175,0.25);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms 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', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: #ffffff;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

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

        .container-narrow {
            max-width: 960px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.02em;
            color: var(--color-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-primary-light);
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .nav-link {
            position: relative;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-soft);
            padding: 0.4rem 0.2rem;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: width var(--transition-smooth);
        }

        .nav-link:hover {
            color: var(--color-primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            width: 100%;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.3rem;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-lg);
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            height: 100vh;
            background: #fff;
            z-index: 200;
            box-shadow: -8px 0 30px rgba(0,0,0,0.12);
            padding: 1.5rem;
            flex-direction: column;
            gap: 0.75rem;
            transform: translateX(100%);
            transition: transform var(--transition-smooth);
        }

        .mobile-menu.open {
            transform: translateX(0);
        }

        .mobile-menu-backdrop {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 199;
        }

        .mobile-menu-backdrop.open {
            display: block;
        }

        .mobile-menu-link {
            display: block;
            padding: 0.75rem 1rem;
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-text-soft);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .mobile-menu-link:hover,
        .mobile-menu-link.active {
            background: #eff6ff;
            color: var(--color-primary);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            line-height: 1;
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f1d3d 0%, #152a55 30%, #1a3a6b 60%, #1e40af 100%);
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: center;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }

        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            filter: blur(120px);
            opacity: 0.3;
            pointer-events: none;
        }

        .hero-glow-1 {
            top: -150px;
            right: -100px;
            background: radial-gradient(circle, rgba(249,115,22,0.5) 0%, transparent 70%);
        }

        .hero-glow-2 {
            bottom: -200px;
            left: -120px;
            background: radial-gradient(circle, rgba(59,130,246,0.45) 0%, transparent 70%);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.2);
            color: #fff;
            padding: 0.45rem 1.1rem;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            color: #ffffff;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #fb923c, #f97316, #fb923c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            font-weight: 700;
            font-size: 1rem;
            background: #ffffff;
            color: var(--color-primary);
            border-radius: var(--radius-xl);
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }

        .hero-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.25);
            background: #f0f7ff;
        }

        .hero-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-xl);
            border: 2px solid rgba(255,255,255,0.5);
            transition: all var(--transition-smooth);
        }

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

        /* 板块通用 */
        .section-padding {
            padding: 5rem 1.5rem;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3.5rem;
        }

        .section-label {
            display: inline-block;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--color-primary);
            background: #eff6ff;
            padding: 0.35rem 1rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.25rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            margin-bottom: 0.75rem;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        /* 卡片 */
        .feature-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 2rem 1.75rem;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
            opacity: 0;
            transition: opacity var(--transition-smooth);
            border-radius: 0 0 4px 4px;
        }

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

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

        .feature-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            flex-shrink: 0;
        }

        .icon-blue {
            background: #eff6ff;
            color: #3b82f6;
        }

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

        .icon-green {
            background: #f0fdf4;
            color: #10b981;
        }

        .icon-purple {
            background: #faf5ff;
            color: #8b5cf6;
        }

        /* 分类入口卡片 */
        .category-card {
            display: block;
            background: #fff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
        }

        .category-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-5px);
        }

        .category-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .category-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .category-card:hover .category-card-img-wrap img {
            transform: scale(1.06);
        }

        .category-card-body {
            padding: 1.5rem;
        }

        /* CMS 列表卡片 */
        .cms-card {
            display: flex;
            gap: 1.25rem;
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.25rem;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }

        .cms-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #dbeafe;
            transform: translateY(-2px);
        }

        .cms-card-thumb {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
        }

        .cms-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .cms-card-content {
            flex: 1;
            min-width: 0;
        }

        .cms-card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            background: #eff6ff;
            color: var(--color-primary);
            margin-bottom: 0.4rem;
        }

        .cms-card-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 0.3rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card-title:hover {
            color: var(--color-primary);
        }

        .cms-card-excerpt {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card-meta {
            font-size: 0.8rem;
            color: var(--color-muted-light);
            margin-top: 0.4rem;
        }

        /* 数据统计 */
        .stat-card {
            text-align: center;
            padding: 1.5rem;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--color-primary);
            line-height: 1.1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.35rem;
            font-weight: 500;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #dbeafe;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 1rem;
        }

        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        .faq-icon {
            font-size: 0.85rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            color: var(--color-muted-light);
        }

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

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #152a55 0%, #1e40af 50%, #1a3a6b 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }

        /* 页脚 */
        .site-footer {
            background: #0f1d35;
            color: rgba(255,255,255,0.75);
            padding: 3.5rem 1.5rem 2rem;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.25rem;
            color: #fff;
            margin-bottom: 0.75rem;
        }

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

        .footer-link:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
            text-align: center;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .section-padding {
                padding: 3.5rem 1.25rem;
            }
            .cms-card-thumb {
                width: 110px;
                height: 80px;
            }
            .hero-section {
                min-height: 480px;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav-links {
                display: none !important;
            }
            .desktop-nav-cta {
                display: none !important;
            }
            .hamburger-btn {
                display: block;
            }
            .mobile-menu {
                display: flex;
            }
            .hero-section {
                min-height: 440px;
                text-align: center;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .cms-card {
                flex-direction: column;
            }
            .cms-card-thumb {
                width: 100%;
                height: 160px;
            }
            .section-padding {
                padding: 2.8rem 1rem;
            }
            .section-header {
                margin-bottom: 2.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 0.75rem;
            }
            .hero-btn-primary,
            .hero-btn-outline {
                width: 100%;
                justify-content: center;
            }
            .feature-card {
                padding: 1.5rem 1.25rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .mobile-menu {
                width: 260px;
            }
        }

/* roulang page: category1 */
:root {
            --color-brand: #c88b3e;
            --color-brand-light: #e8a850;
            --color-brand-dark: #a06d2e;
            --color-brand-pale: #fdf3e4;
            --color-deep: #1a3a4a;
            --color-deep-light: #2c5060;
            --color-text: #1a1a2e;
            --color-text-soft: #5a6070;
            --color-text-muted: #8b919e;
            --color-bg: #f9f8f6;
            --color-white: #ffffff;
            --color-border: #e8e5df;
            --color-border-light: #f0ede8;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.09);
            --shadow-xl: 0 12px 40px rgba(0,0,0,0.11);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms 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: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; line-height: 1.7; color: var(--color-text); background: var(--color-bg); min-height: 100vh; }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
        button { cursor: pointer; border: none; background: none; font-family: inherit; }
        input, textarea { font-family: inherit; }
        ::selection { background: var(--color-brand-pale); color: var(--color-brand-dark); }
        :focus-visible { outline: 2px solid var(--color-brand); outline-offset: 3px; border-radius: 4px; }

        /* 容器 */
        .container-wide { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 28px; }
        .container-narrow { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container-wide { padding: 0 20px; } .container-narrow { padding: 0 18px; } }
        @media (max-width: 520px) { .container-wide { padding: 0 14px; } .container-narrow { padding: 0 14px; } }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid var(--color-border-light); box-shadow: var(--shadow-sm); transition: box-shadow var(--transition-smooth); }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: var(--color-deep); letter-spacing: -0.02em; white-space: nowrap; }
        .nav-logo-icon { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-light) 100%); color: #fff; border-radius: var(--radius-md); font-size: 1.1rem; font-weight: 800; flex-shrink: 0; box-shadow: 0 3px 12px rgba(200,139,62,0.25); }
        .nav-link { font-size: 0.95rem; font-weight: 500; color: var(--color-text-soft); padding: 8px 4px; position: relative; white-space: nowrap; transition: color var(--transition-fast); }
        .nav-link::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%) scaleX(0); width: 20px; height: 2.5px; background: var(--color-brand); border-radius: 4px; transition: transform var(--transition-smooth); }
        .nav-link:hover { color: var(--color-deep); }
        .nav-link:hover::after { transform: translateX(-50%) scaleX(1); }
        .nav-link.active { color: var(--color-brand); font-weight: 600; }
        .nav-link.active::after { transform: translateX(-50%) scaleX(1); width: 24px; background: var(--color-brand); }
        .nav-cta-btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 20px; font-size: 0.9rem; font-weight: 600; color: #fff; background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-light) 100%); border-radius: 50px; white-space: nowrap; transition: all var(--transition-smooth); box-shadow: 0 3px 14px rgba(200,139,62,0.28); }
        .nav-cta-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(200,139,62,0.36); color: #fff; }
        .nav-cta-btn:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(200,139,62,0.22); }
        .hamburger-btn { display: none; font-size: 1.4rem; color: var(--color-deep); padding: 8px; border-radius: var(--radius-sm); transition: background var(--transition-fast); }
        .hamburger-btn:hover { background: var(--color-border-light); }
        /* 移动端导航面板 */
        .mobile-nav-panel { display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0; background: rgba(255,255,255,0.97); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); z-index: 99; padding: 24px 20px; flex-direction: column; gap: 12px; overflow-y: auto; }
        .mobile-nav-panel.open { display: flex; }
        .mobile-nav-panel .nav-link { font-size: 1.1rem; padding: 14px 16px; border-radius: var(--radius-md); transition: background var(--transition-fast); }
        .mobile-nav-panel .nav-link:hover { background: var(--color-border-light); }
        .mobile-nav-panel .nav-link.active { background: var(--color-brand-pale); color: var(--color-brand); }
        .mobile-nav-panel .nav-cta-btn { width: 100%; justify-content: center; margin-top: 8px; padding: 14px 20px; font-size: 1rem; border-radius: var(--radius-lg); }
        @media (max-width: 768px) {
            .desktop-nav-links, .desktop-nav-cta { display: none !important; }
            .hamburger-btn { display: flex; align-items: center; justify-content: center; }
        }

        /* 板块间距 */
        .section { padding: 64px 0; }
        .section-sm { padding: 40px 0; }
        .section-lg { padding: 80px 0; }
        @media (max-width: 768px) { .section { padding: 44px 0; } .section-lg { padding: 56px 0; } .section-sm { padding: 28px 0; } }
        @media (max-width: 520px) { .section { padding: 34px 0; } .section-lg { padding: 44px 0; } }

        /* 标签 */
        .tag { display: inline-flex; align-items: center; padding: 5px 14px; font-size: 0.8rem; font-weight: 500; border-radius: 50px; white-space: nowrap; transition: all var(--transition-fast); }
        .tag-brand { background: var(--color-brand-pale); color: var(--color-brand-dark); }
        .tag-outline { background: transparent; border: 1.5px solid var(--color-border); color: var(--color-text-soft); }
        .tag-outline:hover { border-color: var(--color-brand); color: var(--color-brand); }

        /* 按钮 */
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 26px; font-size: 0.95rem; font-weight: 600; border-radius: 50px; transition: all var(--transition-smooth); white-space: nowrap; cursor: pointer; }
        .btn-primary { background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-light) 100%); color: #fff; box-shadow: 0 4px 18px rgba(200,139,62,0.30); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(200,139,62,0.38); color: #fff; }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(200,139,62,0.20); }
        .btn-outline { background: transparent; border: 2px solid var(--color-border); color: var(--color-text); }
        .btn-outline:hover { border-color: var(--color-brand); color: var(--color-brand); background: var(--color-brand-pale); }
        .btn-white { background: #fff; color: var(--color-deep); box-shadow: var(--shadow-md); }
        .btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .btn-lg { padding: 15px 34px; font-size: 1.05rem; border-radius: 56px; }
        @media (max-width: 520px) { .btn { padding: 11px 22px; font-size: 0.9rem; } .btn-lg { padding: 13px 26px; font-size: 0.95rem; } }

        /* 卡片 */
        .card { background: var(--color-white); border-radius: var(--radius-xl); border: 1px solid var(--color-border-light); box-shadow: var(--shadow-sm); transition: all var(--transition-smooth); overflow: hidden; }
        .card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: transparent; }
        .card-image-wrap { position: relative; overflow: hidden; aspect-ratio: 16/10; background: var(--color-border-light); }
        .card-image-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .card:hover .card-image-wrap img { transform: scale(1.04); }
        .card-body { padding: 20px 22px; }
        @media (max-width: 520px) { .card-body { padding: 16px; } }

        /* FAQ */
        .faq-item { border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); background: var(--color-white); overflow: hidden; transition: all var(--transition-smooth); }
        .faq-item:hover { border-color: var(--color-border); box-shadow: var(--shadow-sm); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 18px 22px; font-size: 0.98rem; font-weight: 600; color: var(--color-deep); text-align: left; cursor: pointer; gap: 14px; }
        .faq-question i { font-size: 0.85rem; color: var(--color-text-muted); transition: transform var(--transition-smooth); flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--color-brand); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; }
        .faq-item.open .faq-answer { max-height: 300px; }
        .faq-answer-inner { padding: 0 22px 18px; font-size: 0.9rem; color: var(--color-text-soft); line-height: 1.8; }

        /* Footer */
        .site-footer { background: var(--color-deep); color: rgba(255,255,255,0.75); padding: 52px 0 28px; margin-top: 0; }
        .site-footer .footer-brand { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
        .site-footer .footer-link { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: color var(--transition-fast); }
        .site-footer .footer-link:hover { color: var(--color-brand-light); }
        @media (max-width: 768px) { .site-footer { padding: 36px 0 22px; } }

        /* Banner */
        .category-banner { position: relative; padding: 80px 0 64px; background: linear-gradient(170deg, #fdf8f2 0%, #f9f5ed 30%, #f4efe4 100%); overflow: hidden; }
        .category-banner::before { content: ''; position: absolute; top: -120px; right: -80px; width: 420px; height: 420px; background: radial-gradient(circle, rgba(200,139,62,0.08) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        .category-banner::after { content: ''; position: absolute; bottom: -60px; left: -60px; width: 280px; height: 280px; background: radial-gradient(circle, rgba(26,58,74,0.04) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        @media (max-width: 768px) { .category-banner { padding: 52px 0 40px; } }
        @media (max-width: 520px) { .category-banner { padding: 36px 0 30px; } }

        /* 面包屑 */
        .breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 0.85rem; color: var(--color-text-muted); }
        .breadcrumb a { color: var(--color-text-soft); }
        .breadcrumb a:hover { color: var(--color-brand); }
        .breadcrumb .separator { color: var(--color-text-muted); font-size: 0.7rem; }
        .breadcrumb .current { color: var(--color-brand); font-weight: 500; }

        /* 搜索框 */
        .search-box { display: flex; align-items: center; gap: 0; background: var(--color-white); border: 2px solid var(--color-border); border-radius: 50px; overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition-smooth); }
        .search-box:focus-within { border-color: var(--color-brand); box-shadow: var(--shadow-glow, 0 0 32px rgba(200,139,62,0.14)); }
        .search-box input { flex: 1; border: none; padding: 14px 20px; font-size: 0.95rem; color: var(--color-text); background: transparent; min-width: 0; }
        .search-box input::placeholder { color: var(--color-text-muted); }
        .search-box input:focus { outline: none; }
        .search-box button { padding: 14px 22px; background: var(--color-brand); color: #fff; font-size: 1rem; transition: background var(--transition-fast); border-radius: 50px; margin: 4px; }
        .search-box button:hover { background: var(--color-brand-dark); }

        /* 统计数字动画 */
        .stat-number { font-size: 2.4rem; font-weight: 800; color: var(--color-deep); line-height: 1.1; }
        .stat-label { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 4px; }
        @media (max-width: 520px) { .stat-number { font-size: 1.8rem; } }

        /* 步骤指示器 */
        .step-item { position: relative; padding-left: 48px; }
        .step-item::before { content: attr(data-step); position: absolute; left: 0; top: 2px; width: 34px; height: 34px; border-radius: 50%; background: var(--color-brand); color: #fff; font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
        .step-item:not(:last-child)::after { content: ''; position: absolute; left: 16px; top: 42px; bottom: -16px; width: 2px; background: var(--color-border); border-radius: 1px; }

        /* 骨架屏脉冲 */
        @keyframes shimmer { 0% { background-position: -300px 0; } 100% { background-position: 300px 0; } }

/* roulang page: article */
:root {
            --color-primary: #1E40AF;
            --color-primary-dark: #1E3A8A;
            --color-primary-light: #3B82F6;
            --color-accent: #F59E0B;
            --color-bg: #FFFFFF;
            --color-bg-light: #F8FAFC;
            --color-text: #1E293B;
            --color-text-weak: #64748B;
            --color-border: #E2E8F0;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
            --rounded: 0.5rem;
            --rounded-lg: 0.75rem;
            --transition: 0.2s ease;
        }
        * {
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            color: var(--color-text);
            background: var(--color-bg);
            line-height: 1.6;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button, input {
            font-family: inherit;
        }

        /* 容器 */
        .container-wide {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 640px) {
            .container-wide {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border);
            transition: var(--transition);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.5px;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 2rem;
            height: 2rem;
            background: var(--color-primary);
            color: white;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 800;
        }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-weak);
            padding: 0.5rem 0.75rem;
            border-radius: 0.5rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: #EFF6FF;
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0.75rem;
            right: 0.75rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--color-primary);
            color: white;
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 2px 6px rgba(30,64,175,0.3);
        }
        .nav-cta-btn:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(30,64,175,0.4);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
        }
        @media (max-width: 768px) {
            .desktop-nav-links, .desktop-nav-cta {
                display: none !important;
            }
            .hamburger-btn {
                display: block;
            }
            .mobile-menu.show {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 64px;
                left: 0;
                width: 100%;
                background: white;
                box-shadow: var(--shadow-lg);
                padding: 1.5rem;
                gap: 1rem;
                z-index: 40;
            }
            .mobile-menu .nav-link {
                display: block;
                width: 100%;
                padding: 0.75rem 1rem;
            }
            .mobile-menu .nav-cta-btn {
                justify-content: center;
                width: 100%;
            }
        }

        /* 文章横幅 */
        .article-banner {
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(0,0,0,0.7), rgba(0,0,0,0.3));
        }

        /* 文章内容区 */
        .article-content {
            max-width: 860px;
            margin-left: auto;
            margin-right: auto;
            padding-top: 2.5rem;
            padding-bottom: 4rem;
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
        }
        .article-content p {
            margin-bottom: 1.25rem;
            line-height: 1.8;
            color: var(--color-text);
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.25rem;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .article-content img {
            border-radius: var(--rounded-lg);
            margin: 1.5rem 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            padding-left: 1rem;
            margin: 1.5rem 0;
            color: var(--color-text-weak);
            font-style: italic;
        }
        .article-content a {
            color: var(--color-primary);
            text-decoration: underline;
        }

        /* 内容未找到 */
        .not-found {
            text-align: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--color-primary);
            color: white;
            padding: 0.75rem 2rem;
            border-radius: 9999px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* 页脚 */
        .site-footer {
            background: #0F172A;
            color: white;
            padding: 3rem 1.5rem 2rem;
            margin-top: 4rem;
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .footer-link {
            color: rgba(255,255,255,0.6);
            transition: color var(--transition);
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: white;
        }
        .site-footer h4 {
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }