/* roulang page: index */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --cta: #dc2626;
            --cta-hover: #b91c1c;
            --bg-body: #ffffff;
            --text-body: #1e293b;
            --text-weak: #64748b;
            --border-color: #e2e8f0;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1);
            --transition: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-body);
            background: var(--bg-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .container-wide {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        /* header & nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-dark);
            white-space: nowrap;
        }
        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-main a {
            padding: 0.5rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 0.5rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover {
            background: var(--primary-subtle, #eff6ff);
            color: var(--primary);
        }
        .nav-main a.active {
            color: var(--primary);
            font-weight: 600;
            background: #eff6ff;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: 2rem;
            padding: 0.35rem 0.75rem 0.35rem 1rem;
            border: 1px solid transparent;
            transition: var(--transition);
            min-width: 180px;
        }
        .header-search:focus-within {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
        }
        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.875rem;
            color: var(--text-body);
            width: 100%;
            padding: 0.25rem 0;
        }
        .header-search input::placeholder {
            color: #94a3b8;
        }
        .header-search button {
            background: none;
            border: none;
            color: #64748b;
            cursor: pointer;
            padding: 0.25rem 0.25rem 0.25rem 0.5rem;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .header-search button:hover {
            color: var(--primary);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-body);
            cursor: pointer;
            padding: 0.25rem;
            line-height: 1;
        }
        .hot-tags {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.75rem;
            color: var(--text-weak);
            margin-left: 0.5rem;
        }
        .hot-tags a {
            padding: 0.15rem 0.5rem;
            background: #f1f5f9;
            border-radius: 1rem;
            color: var(--text-weak);
            font-weight: 400;
            font-size: 0.75rem;
            transition: var(--transition);
        }
        .hot-tags a:hover {
            background: var(--primary-subtle, #eff6ff);
            color: var(--primary);
        }

        /* hero */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1a56db 100%);
            overflow: hidden;
            padding: 4rem 0;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 700px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 1.25rem;
        }
        .hero-badge i {
            color: var(--accent-light);
        }
        .hero-title {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .hero-title span {
            color: var(--accent-light);
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 580px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.4);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #fff;
            padding: 0.7rem 1.8rem;
            border-radius: 2rem;
            font-weight: 500;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-stat-item {
            color: #fff;
        }
        .hero-stat-item .num {
            font-size: 1.75rem;
            font-weight: 700;
            display: block;
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.15rem;
        }

        /* sections general */
        .section {
            padding: 4.5rem 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text-body);
            margin-bottom: 0.75rem;
        }
        .section-header p {
            color: var(--text-weak);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .tagline {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #eff6ff;
            color: var(--primary);
            padding: 0.25rem 1rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 0.75rem;
        }

        /* feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 1.25rem;
        }
        .feature-card .icon.blue {
            background: linear-gradient(135deg, #1a56db, #3b82f6);
        }
        .feature-card .icon.amber {
            background: linear-gradient(135deg, #d97706, #f59e0b);
        }
        .feature-card .icon.green {
            background: linear-gradient(135deg, #059669, #10b981);
        }
        .feature-card .icon.purple {
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* category cards */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            display: block;
            color: var(--text-body);
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            color: var(--text-body);
        }
        .category-card .card-img {
            height: 180px;
            background: #e2e8f0;
            position: relative;
            overflow: hidden;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.05);
        }
        .category-card .card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent);
        }
        .category-card .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }
        .category-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.35rem;
        }
        .category-card .card-body p {
            color: var(--text-weak);
            font-size: 0.85rem;
            line-height: 1.5;
        }
        .category-card .card-body .tag {
            display: inline-block;
            background: #eff6ff;
            color: var(--primary);
            padding: 0.2rem 0.7rem;
            border-radius: 1rem;
            font-size: 0.75rem;
            font-weight: 500;
            margin-top: 0.6rem;
        }

        /* content list / news */
        .content-list {
            display: grid;
            gap: 1.25rem;
        }
        .content-item {
            display: flex;
            gap: 1.25rem;
            background: #fff;
            border-radius: var(--radius);
            padding: 1.25rem 1.5rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            align-items: flex-start;
        }
        .content-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .content-item .item-thumb {
            width: 100px;
            height: 70px;
            border-radius: 0.5rem;
            background: #e2e8f0;
            flex-shrink: 0;
            overflow: hidden;
        }
        .content-item .item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .content-item .item-info {
            flex: 1;
            min-width: 0;
        }
        .content-item .item-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            line-height: 1.4;
        }
        .content-item .item-info h4 a {
            color: var(--text-body);
        }
        .content-item .item-info h4 a:hover {
            color: var(--primary);
        }
        .content-item .item-info .meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-weak);
        }
        .content-item .item-info .meta .cat {
            background: #f1f5f9;
            padding: 0.1rem 0.6rem;
            border-radius: 1rem;
            color: var(--text-weak);
        }
        .content-item .item-info .desc {
            color: var(--text-weak);
            font-size: 0.85rem;
            margin-top: 0.3rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* data / numbers */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.5rem;
            text-align: center;
        }
        .data-item {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .data-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .data-item .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .data-item .number .suffix {
            font-size: 1.2rem;
            font-weight: 600;
        }
        .data-item .label {
            color: var(--text-weak);
            font-size: 0.9rem;
            margin-top: 0.3rem;
        }

        /* process / steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding-top: 1.5rem;
        }
        .step-item .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .step-item p {
            color: var(--text-weak);
            font-size: 0.85rem;
            line-height: 1.5;
        }
        .step-item::after {
            content: '';
            position: absolute;
            top: 3rem;
            right: -1rem;
            width: 2rem;
            height: 2px;
            background: var(--border-color);
        }
        .step-item:last-child::after {
            display: none;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-q {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: #f8fafc;
        }
        .faq-item .faq-q i {
            color: var(--text-weak);
            transition: var(--transition);
            font-size: 0.85rem;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            padding: 0 1.5rem 1.1rem;
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a56db 0%, #1e40af 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 1.75rem;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: var(--primary);
            padding: 0.8rem 2.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            border: none;
            cursor: pointer;
        }
        .btn-cta:hover {
            background: var(--accent-light);
            color: var(--text-body);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 500;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        /* footer */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: block;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.8rem;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            z-index: 99;
            padding: 2rem 1.5rem;
            overflow-y: auto;
            flex-direction: column;
            gap: 0.5rem;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            padding: 0.75rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 0.5rem;
            transition: var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: #eff6ff;
            color: var(--primary);
        }
        .mobile-nav .hot-tags-mobile {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: 1rem;
            padding: 1rem 0 0;
            border-top: 1px solid var(--border-color);
        }
        .mobile-nav .hot-tags-mobile a {
            padding: 0.25rem 0.8rem;
            background: #f1f5f9;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 400;
            color: var(--text-weak);
        }

        /* responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-stats {
                gap: 1.5rem;
                flex-wrap: wrap;
            }
        }
        @media (max-width: 768px) {
            .nav-main,
            .header-search,
            .hot-tags {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .site-header .header-inner {
                height: 60px;
            }
            .site-logo {
                font-size: 1.15rem;
            }
            .site-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .hero-section {
                min-height: 400px;
                padding: 3rem 0;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats {
                gap: 1.25rem;
                flex-wrap: wrap;
            }
            .hero-stat-item .num {
                font-size: 1.4rem;
            }
            .section {
                padding: 3rem 0;
            }
            .content-item {
                flex-direction: column;
                padding: 1rem;
            }
            .content-item .item-thumb {
                width: 100%;
                height: 160px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .step-item::after {
                display: none;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 3rem 0;
            }
            .btn-primary,
            .btn-cta,
            .btn-cta-outline,
            .btn-outline-light {
                padding: 0.6rem 1.5rem;
                font-size: 0.9rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                justify-content: center;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .faq-item .faq-q {
                padding: 0.9rem 1.2rem;
                font-size: 0.95rem;
            }
            .faq-item .faq-a {
                padding: 0 1.2rem 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .data-item {
                padding: 1.25rem 0.75rem;
            }
            .data-item .number {
                font-size: 1.8rem;
            }
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .container {
                padding: 0 1rem;
            }
            .header-actions {
                gap: 0.4rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #e50914;
            --primary-dark: #b20710;
            --primary-light: #ff4d4d;
            --secondary: #1a1a2e;
            --accent: #f5c518;
            --bg-dark: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #12121f;
            --text-primary: #f5f5f7;
            --text-secondary: #a0a0b0;
            --text-muted: #6b6b7b;
            --border-color: #2a2a3e;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 16px 48px rgba(229, 9, 20, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg-dark);
            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-sm);
        }
        button, input, textarea {
            font-family: inherit;
            transition: var(--transition);
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 15, 26, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 62, 0.6);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            flex-shrink: 0;
        }

        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 9, 20, 0.3);
        }

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

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

        .nav-main a {
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-main a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-main a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(229, 9, 20, 0.25);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 100px;
            padding: 6px 16px;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: rgba(229, 9, 20, 0.06);
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            font-size: 0.875rem;
            width: 120px;
            padding: 4px 0;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box button {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 4px 0 4px 8px;
        }

        .search-box button:hover {
            color: var(--primary);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.4rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
        }

        .mobile-toggle:hover {
            background: rgba(255,255,255,0.05);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 40px;
            background: linear-gradient(135deg, rgba(15,15,26,0.95) 0%, rgba(26,26,46,0.9) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid rgba(42,42,62,0.4);
        }

        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-hero .breadcrumb a {
            color: var(--text-secondary);
        }

        .article-hero .breadcrumb a:hover {
            color: var(--primary);
        }

        .article-hero .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        .article-hero .breadcrumb .current {
            color: var(--text-primary);
        }

        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: #fff;
            max-width: 900px;
            margin-bottom: 16px;
        }

        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .article-meta-bar .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(229, 9, 20, 0.15);
            color: var(--primary-light);
            border: 1px solid rgba(229, 9, 20, 0.2);
        }

        .article-meta-bar .date {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-bar .date i {
            font-size: 0.8rem;
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 50px 0 70px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }

        .article-body .content p {
            margin-bottom: 1.2em;
        }

        .article-body .content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 1.6em 0 0.6em;
            color: #fff;
            letter-spacing: -0.3px;
        }

        .article-body .content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 1.4em 0 0.5em;
            color: #f0f0f0;
        }

        .article-body .content ul, 
        .article-body .content ol {
            padding-left: 1.5em;
            margin-bottom: 1.2em;
        }

        .article-body .content li {
            margin-bottom: 0.4em;
        }

        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 1.5em 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
        }

        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            padding: 12px 20px;
            margin: 1.5em 0;
            background: rgba(229, 9, 20, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body .content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body .content a:hover {
            color: var(--accent);
        }

        .article-body .content .tag-label {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.8rem;
            background: rgba(229,9,20,0.1);
            color: var(--primary-light);
            border: 1px solid rgba(229,9,20,0.15);
            margin: 0 4px 4px 0;
        }

        .article-body .not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .article-body .not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article-body .not-found h2 {
            font-size: 1.6rem;
            margin-bottom: 12px;
            color: #fff;
        }

        .article-body .not-found p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .article-body .not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 100px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .article-body .not-found .btn-back:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(229,9,20,0.3);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card h3 i {
            color: var(--primary);
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }

        .sidebar-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(42,42,62,0.4);
        }

        .sidebar-card ul li:last-child {
            border-bottom: none;
        }

        .sidebar-card ul li a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .sidebar-card ul li a:hover {
            color: var(--primary-light);
        }

        .sidebar-card ul li a .num {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: rgba(229,9,20,0.1);
            color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
        }

        .sidebar-card ul li a .num.top {
            background: var(--primary);
            color: #fff;
        }

        .sidebar-card .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-card .tag-cloud a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            background: rgba(255,255,255,0.04);
            color: var(--text-secondary);
            border: 1px solid rgba(42,42,62,0.4);
            transition: var(--transition);
        }

        .sidebar-card .tag-cloud a:hover {
            background: rgba(229,9,20,0.1);
            color: var(--primary-light);
            border-color: rgba(229,9,20,0.2);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: none;
        }

        .sidebar-cta h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .sidebar-cta p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
            margin-bottom: 20px;
        }

        .sidebar-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 100px;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .sidebar-cta .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0,0,0,0.2);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 40px 0 60px;
            border-top: 1px solid rgba(42,42,62,0.3);
        }

        .related-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 28px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section h2 i {
            color: var(--primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(229,9,20,0.2);
        }

        .related-card .card-img {
            height: 160px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .related-card .card-img .cat-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(229,9,20,0.85);
            color: #fff;
        }

        .related-card .card-body {
            padding: 18px 20px 20px;
        }

        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-card .card-body .meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .related-card .card-body .meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
        }

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

        .footer-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 14px;
        }

        .footer-brand .logo-text .highlight {
            color: var(--primary);
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 6px 0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(42,42,62,0.5);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-main {
                order: 3;
                width: 100%;
                justify-content: center;
                padding-top: 8px;
                border-top: 1px solid rgba(42,42,62,0.3);
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .nav-main::-webkit-scrollbar {
                display: none;
            }
            .nav-main a {
                font-size: 0.85rem;
                padding: 6px 14px;
            }
            .search-box {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .article-hero h1 {
                font-size: 1.6rem;
            }
            .article-body {
                padding: 24px 20px;
            }
            .article-body .content {
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-hero {
                padding: 36px 0 28px;
            }
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-meta-bar {
                gap: 10px 16px;
                font-size: 0.8rem;
            }
            .article-section {
                padding: 30px 0 40px;
            }
            .article-body {
                padding: 18px 14px;
                border-radius: var(--radius-sm);
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .sidebar-card {
                padding: 20px 16px;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }

/* roulang page: category1 */
:root {
            --primary: #e53e3e;
            --primary-dark: #c53030;
            --primary-light: #f56565;
            --secondary: #2d3748;
            --accent: #f6ad55;
            --bg-light: #f7fafc;
            --bg-dark: #1a202c;
            --text-primary: #1a202c;
            --text-secondary: #4a5568;
            --text-light: #a0aec0;
            --border-color: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px 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);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            transition: var(--transition);
        }
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(229, 62, 62, 0.3);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            white-space: nowrap;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: rgba(229, 62, 62, 0.06);
        }
        .nav-main a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(229, 62, 62, 0.35);
        }
        .nav-main a.active:hover {
            background: var(--primary-dark);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 24px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.12);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 6px;
            font-size: 14px;
            outline: none;
            width: 140px;
            color: var(--text-primary);
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
            padding: 6px;
            font-size: 16px;
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .hot-tags {
            display: flex;
            gap: 6px;
            font-size: 12px;
            color: var(--text-light);
        }
        .hot-tags a {
            padding: 2px 10px;
            border-radius: 12px;
            background: rgba(229, 62, 62, 0.06);
            color: var(--text-secondary);
            font-weight: 500;
        }
        .hot-tags a:hover {
            background: rgba(229, 62, 62, 0.14);
            color: var(--primary);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px;
        }
        @media (max-width: 1024px) {
            .hot-tags {
                display: none;
            }
            .search-box input {
                width: 100px;
            }
        }
        @media (max-width: 768px) {
            .nav-main {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow);
                gap: 4px;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active {
                background: var(--primary);
                color: #fff;
            }
            .mobile-toggle {
                display: block;
            }
            .search-box input {
                width: 100px;
            }
            .header-actions .hot-tags {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                height: 60px;
                gap: 10px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .search-box {
                padding: 0 10px;
            }
            .search-box input {
                width: 70px;
                font-size: 12px;
                padding: 6px 4px;
            }
            .search-box button {
                font-size: 14px;
            }
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: 80px 0 64px;
            background: linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #1a202c 100%);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-light), transparent);
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-badges span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-badges span i {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 56px 0 48px;
                min-height: 240px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .hero-badges span {
                font-size: 12px;
                padding: 4px 14px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 14px;
            }
        }

        /* Breadcrumb */
        .breadcrumb {
            padding: 16px 0;
            font-size: 14px;
            color: var(--text-light);
            background: #fff;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            margin: 0 8px;
            color: var(--text-light);
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* Section通用 */
        .section {
            padding: 64px 0;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-sub {
                font-size: 14px;
                margin-bottom: 28px;
            }
        }

        /* Guide Grid */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .guide-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .guide-card-img img {
            transform: scale(1.05);
        }
        .guide-card-img .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 16px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(229, 62, 62, 0.3);
        }
        .guide-card-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            color: var(--text-primary);
        }
        .guide-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-top: auto;
        }
        .guide-card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .guide-card-meta .read-more:hover {
            color: var(--primary-dark);
            gap: 8px;
        }
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .guide-card-img {
                height: 180px;
            }
            .guide-card-body h3 {
                font-size: 16px;
            }
        }

        /* Steps */
        .steps-section {
            background: #fff;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 28px 16px;
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .step-item:hover {
            background: #fff;
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(229, 62, 62, 0.3);
        }
        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .step-item .step-icon {
            font-size: 28px;
            color: var(--primary-light);
            margin-bottom: 12px;
            display: block;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-item {
                padding: 20px 12px;
            }
            .step-item h4 {
                font-size: 15px;
            }
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item summary {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .faq-item summary {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                font-size: 13px;
                padding: 0 16px 14px;
            }
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a202c, #2d3748);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 580px;
            margin: 0 auto 28px;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(229, 62, 62, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(229, 62, 62, 0.45);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .btn {
                padding: 12px 28px;
                font-size: 14px;
            }
        }
        @media (max-width: 520px) {
            .cta-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text {
            font-size: 24px;
            font-weight: 800;
            background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.7));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 32px 0 0;
            }
        }

        /* 分类页特有 */
        .category-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-sm);
            padding: 20px 16px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .stat-card .num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
            display: block;
        }
        @media (max-width: 768px) {
            .category-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .num {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .category-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-card .num {
                font-size: 18px;
            }
        }

        /* 文章列表样式 */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-row {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 20px 22px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-row:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateX(4px);
        }
        .article-row .rank {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-light);
            min-width: 36px;
            line-height: 1.2;
        }
        .article-row .rank.top {
            color: var(--primary);
        }
        .article-row .content {
            flex: 1;
        }
        .article-row .content h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .article-row .content h4 a {
            color: var(--text-primary);
        }
        .article-row .content h4 a:hover {
            color: var(--primary);
        }
        .article-row .content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .article-row .meta {
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
            flex-shrink: 0;
        }
        @media (max-width: 640px) {
            .article-row {
                flex-direction: column;
                gap: 8px;
                padding: 16px;
            }
            .article-row .rank {
                font-size: 18px;
                min-width: auto;
            }
            .article-row .meta {
                white-space: normal;
                font-size: 12px;
            }
        }