/* roulang page: index */
:root {
            --primary: #1e40af;
            --primary-dark: #0a1a4a;
            --primary-soft: #f0f4fa;
            --accent: #f59e0b;
            --accent-soft: #fef3c7;
            --bg: #f8fafc;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 4px 20px rgba(15, 42, 77, 0.08);
            --shadow-hover: 0 14px 34px rgba(15, 42, 77, 0.16);
            --transition: all .28s cubic-bezier(.4, 0, .2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 16px 20px;
            display: flex;
            justify-content: center;
            pointer-events: none;
        }

        .nav-pill {
            pointer-events: auto;
            width: 100%;
            max-width: 1220px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 12px 24px;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(18px) saturate(160%);
            -webkit-backdrop-filter: blur(18px) saturate(160%);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 60px;
            box-shadow: 0 8px 32px rgba(15, 42, 77, 0.1);
            transition: var(--transition);
        }

        .site-header.scrolled .nav-pill {
            box-shadow: 0 8px 40px rgba(15, 42, 77, 0.14);
            background: rgba(255, 255, 255, 0.92);
        }

        .nav-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
        }

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

        .nav-links a {
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #475569;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(30, 64, 175, 0.06);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(30, 64, 175, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 24px;
            border-radius: 30px;
            background: linear-gradient(135deg, #1e40af, #0e2363);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(30, 64, 175, 0.25);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(30, 64, 175, 0.35);
        }

        .nav-cta svg {
            width: 16px;
            height: 16px;
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            background: rgba(30, 64, 175, 0.08);
            color: var(--primary-dark);
        }

        .mobile-toggle svg {
            width: 22px;
            height: 22px;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 76px;
            left: 20px;
            right: 20px;
            z-index: 99;
            background: #fff;
            border-radius: 20px;
            padding: 20px;
            box-shadow: 0 20px 50px rgba(15, 42, 77, 0.18);
            border: 1px solid var(--border);
        }

        .mobile-menu.open {
            display: block;
            animation: fadeInDown .3s ease;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: #334155;
        }

        .mobile-menu a.active {
            background: rgba(30, 64, 175, 0.08);
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-menu a+a {
            margin-top: 4px;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-image: linear-gradient(135deg, rgba(10, 26, 74, 0.92), rgba(30, 64, 175, 0.76)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            padding: 140px 24px 100px;
        }

        .hero::before {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to bottom, transparent, var(--bg));
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 28px;
        }

        .hero-badge span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #34d399;
            box-shadow: 0 0 10px rgba(52, 211, 153, 0.8);
        }

        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4.6rem);
            font-weight: 900;
            line-height: 1.12;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
        }

        .hero h1 .gradient-text {
            background: linear-gradient(120deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-subtitle {
            max-width: 720px;
            margin: 0 auto 40px;
            font-size: 1.15rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 50px;
            background: linear-gradient(135deg, #f59e0b, #fbbf24);
            color: #0a1a4a;
            font-size: 1rem;
            font-weight: 700;
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.4);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 14px 40px rgba(245, 158, 11, 0.5);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-3px);
        }

        .hero-stats-compact {
            margin-top: 56px;
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.16);
        }

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

        .hero-stat .num {
            font-size: 1.9rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* Section common */
        .section {
            padding: 100px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 60px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 30px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: clamp(1.9rem, 3.6vw, 2.8rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--primary-dark);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* Stats section */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            text-align: center;
            padding: 36px 24px;
            border-radius: var(--radius-lg);
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .stat-card .value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-card .value span {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--accent);
        }

        .stat-card .label {
            font-size: 0.92rem;
            color: var(--text-weak);
            margin-top: 8px;
        }

        .stat-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            background: var(--primary-soft);
            color: var(--primary);
        }

        .stat-card .icon-wrap svg {
            width: 26px;
            height: 26px;
        }

        /* Features */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            padding: 40px 32px;
            border-radius: var(--radius-lg);
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 90px;
            height: 90px;
            border-radius: 0 0 0 100%;
            background: var(--accent-soft);
            opacity: 0.5;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 64, 175, 0.2);
        }

        .feature-card:hover::after {
            opacity: 1;
            transform: scale(1.1);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1e40af, #0e2363);
            color: #fff;
            font-size: 1.6rem;
            margin-bottom: 24px;
            box-shadow: 0 8px 20px rgba(30, 64, 175, 0.2);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
        }

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

        /* Category cards */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .category-card .thumb {
            position: relative;
            height: 220px;
            overflow: hidden;
            background: var(--primary-soft);
        }

        .category-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

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

        .category-card .thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 26, 74, 0.55), transparent 60%);
        }

        .category-card .tag-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            backdrop-filter: blur(6px);
        }

        .category-card .body {
            padding: 24px;
        }

        .category-card .body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .category-card .body p {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.65;
            margin-bottom: 16px;
        }

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

        .category-card .link-more svg {
            width: 16px;
            height: 16px;
            transition: transform .3s;
        }

        .category-card:hover .link-more svg {
            transform: translateX(4px);
        }

        /* News list */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .news-card {
            display: flex;
            gap: 24px;
            padding: 28px;
            border-radius: var(--radius-lg);
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 64, 175, 0.2);
        }

        .news-card .thumb {
            flex: 0 0 160px;
            height: 120px;
            border-radius: var(--radius-md);
            overflow: hidden;
        }

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

        .news-card .content {
            flex: 1;
        }

        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }

        .news-card .meta .cate {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 20px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
        }

        .news-card .meta time {
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        .news-card h3 {
            font-size: 1.06rem;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
            color: var(--text-weak);
            font-size: 1rem;
        }

        .view-all-wrap {
            text-align: center;
            margin-top: 48px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(30, 64, 175, 0.08);
            transform: translateY(-2px);
        }

        .btn-secondary svg {
            width: 16px;
            height: 16px;
        }

        /* Steps */
        .steps-wrap {
            position: relative;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 40px;
        }

        .steps-wrap::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, rgba(30, 64, 175, 0.08), rgba(30, 64, 175, 0.3), rgba(30, 64, 175, 0.08));
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 36px 20px;
            transition: var(--transition);
        }

        .step-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, #1e40af, #0e2363);
            box-shadow: 0 8px 24px rgba(30, 64, 175, 0.25);
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(30, 64, 175, 0.25);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--primary-dark);
            text-align: left;
        }

        .faq-question .icon {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            transition: var(--transition);
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .4s ease;
            padding: 0 28px;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 28px 24px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.8;
            padding-top: 4px;
            border-top: 1px solid var(--border);
        }

        /* CTA */
        .cta-section {
            position: relative;
            border-radius: 32px;
            overflow: hidden;
            padding: 80px 48px;
            text-align: center;
            color: #fff;
            background-image: linear-gradient(120deg, rgba(10, 26, 74, 0.94), rgba(30, 64, 175, 0.85)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            box-shadow: 0 20px 60px rgba(10, 26, 74, 0.25);
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3.4vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .cta-section p {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .logo-text .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }

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

        .footer-col li {
            margin-bottom: 12px;
        }

        .footer-col a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 28px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom .links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom .links a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* Animations */
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            opacity: 0;
            animation: fadeInUp .7s ease forwards;
        }

        .hero .fade-in-up {
            animation-delay: .2s;
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.5);
            outline-offset: 2px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }

            .section {
                padding: 80px 0;
            }

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

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

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

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

            .steps-wrap::before {
                display: none;
            }

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

        @media (max-width: 768px) {
            .nav-links,
            .nav-cta {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .hero {
                min-height: auto;
                padding: 120px 20px 90px;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-stats-compact {
                gap: 24px;
            }

            .hero-stat .num {
                font-size: 1.5rem;
            }

            .section-header {
                margin-bottom: 40px;
            }

            .section-header h2 {
                font-size: 1.8rem;
            }

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

            .news-card .thumb {
                flex-basis: 120px;
                height: auto;
                min-height: 100px;
            }

            .cta-section {
                padding: 60px 28px;
                border-radius: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

        @media (max-width: 520px) {
            .nav-pill {
                padding: 10px 18px;
                border-radius: 40px;
            }

            .nav-logo {
                font-size: 1.05rem;
            }

            .hero {
                padding: 110px 16px 70px;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }

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

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

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

            .steps-wrap {
                grid-template-columns: 1fr;
            }

            .section {
                padding: 64px 0;
            }

            .news-card {
                flex-direction: column;
                padding: 20px;
            }

            .news-card .thumb {
                flex-basis: auto;
                height: 160px;
                width: 100%;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 20px;
            }

            .faq-item.open .faq-answer {
                padding: 0 20px 20px;
            }

            .cta-section {
                padding: 48px 20px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #06b6d4;
            --bg: #f8fafc;
            --text: #0f172a;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 4px 24px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 40px rgba(37, 99, 235, 0.12);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
        }

        /* Reset & Base */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        input {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Floating Pill Navigation ===== */
        .site-header {
            position: relative;
            z-index: 1000;
            padding: 20px 24px 0;
            background: transparent;
        }

        .nav-pill {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(226, 232, 240, 0.6);
            border-radius: 60px;
            padding: 10px 16px 10px 24px;
            box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
            transition: var(--transition);
        }

        .nav-pill.scrolled {
            box-shadow: 0 8px 32px rgba(15, 23, 42, 0.1);
            background: rgba(255, 255, 255, 0.95);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            flex-shrink: 0;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            position: relative;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            border-radius: 40px;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.06);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
            transition: var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
        }

        .nav-cta svg {
            width: 16px;
            height: 16px;
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text);
            background: rgba(15, 23, 42, 0.04);
            transition: var(--transition);
        }

        .mobile-toggle svg {
            width: 20px;
            height: 20px;
        }

        .mobile-toggle:hover {
            background: rgba(37, 99, 235, 0.1);
        }

        .mobile-toggle:focus-visible,
        .nav-links a:focus-visible,
        .nav-cta:focus-visible,
        .nav-logo:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        @media (max-width: 768px) {
            .nav-pill {
                padding: 10px 12px 10px 16px;
                gap: 12px;
            }
            .nav-logo {
                font-size: 16px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 24px;
                right: 24px;
                flex-direction: column;
                background: #fff;
                border-radius: 20px;
                padding: 16px;
                gap: 4px;
                box-shadow: 0 16px 48px rgba(15, 23, 42, 0.12);
                border: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                display: block;
                width: 100%;
                text-align: center;
                padding: 12px;
            }
            .nav-cta {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                padding: 12px 12px 0;
            }
            .nav-pill {
                border-radius: 50px;
            }
            .nav-logo {
                font-size: 15px;
                gap: 8px;
            }
            .nav-links {
                left: 12px;
                right: 12px;
            }
        }

        /* ===== Page Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92), rgba(15, 26, 46, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            margin-top: -68px;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.25);
            filter: blur(60px);
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            backdrop-filter: blur(10px);
            margin-bottom: 20px;
        }

        .banner-badge i {
            color: #38bdf8;
        }

        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            max-width: 600px;
        }

        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(37, 99, 235, 0.45);
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-3px);
            border-color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 90px 0 60px;
                margin-top: -60px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .page-banner p {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                padding: 80px 0 50px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .banner-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn {
                width: 100%;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 48px 0;
        }

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
        }

        /* ===== Entry Guide Cards ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

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

        .guide-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            margin-bottom: 20px;
        }

        .icon-blue {
            background: linear-gradient(135deg, #2563eb, #3b82f6);
        }

        .icon-cyan {
            background: linear-gradient(135deg, #06b6d4, #22d3ee);
        }

        .icon-violet {
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
        }

        .guide-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .guide-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .guide-card .step-list {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px dashed var(--border);
        }

        .step-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            line-height: 1.6;
            padding: 6px 0;
        }

        .step-list li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 3px;
        }

        @media (max-width: 992px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .guide-card {
                padding: 28px 22px;
            }
        }

        /* ===== Steps Timeline ===== */
        .steps-section {
            background: linear-gradient(180deg, #f8fafc, #eff6ff);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 38px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
            opacity: 0.3;
            border-radius: 2px;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 76px;
            height: 76px;
            margin: 0 auto 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
            border: 4px solid #fff;
        }

        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            padding: 0 12px;
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 20px;
            }
            .steps-grid::before {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .steps-grid {
                grid-template-columns: 1fr;
                max-width: 320px;
                margin: 0 auto;
            }
        }

        /* ===== Content Feature Blocks ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            align-items: center;
        }

        .feature-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .feature-media img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .feature-media:hover img {
            transform: scale(1.03);
        }

        .feature-content h3 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .feature-content p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .feature-points {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin: 24px 0;
        }

        .feature-points li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 15px;
        }

        .feature-points li i {
            color: var(--primary);
            margin-top: 3px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        .feature-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--primary);
        }

        .feature-cta i {
            transition: transform .3s ease;
        }

        .feature-cta:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-content h3 {
                font-size: 22px;
            }
        }

        /* ===== Safety Notes ===== */
        .safety-section {
            background: #0b1220;
            color: #fff;
            border-radius: 32px;
            padding: 60px;
            position: relative;
            overflow: hidden;
            margin: 60px 0;
        }

        .safety-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.2);
            filter: blur(50px);
        }

        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .safety-item {
            padding: 28px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }

        .safety-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .safety-item i {
            font-size: 26px;
            color: #38bdf8;
            margin-bottom: 16px;
        }

        .safety-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .safety-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
        }

        @media (max-width: 992px) {
            .safety-section {
                padding: 40px 24px;
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .safety-section {
                border-radius: 20px;
                padding: 32px 20px;
                margin: 40px 0;
            }
            .safety-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
            box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 22px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }

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

        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item summary .faq-icon i {
            font-size: 14px;
            color: var(--primary);
            transition: transform .3s ease;
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-item[open] summary .faq-icon {
            background: var(--primary);
        }

        .faq-item[open] summary .faq-icon i {
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 22px;
            border-top: 1px solid rgba(226, 232, 240, 0.6);
        }

        .faq-item .faq-answer p {
            padding-top: 16px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ===== Featured Content Cards ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .resource-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .resource-card .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .resource-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .resource-card:hover .card-img img {
            transform: scale(1.05);
        }

        .resource-card .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(37, 99, 235, 0.9);
            color: #fff;
            backdrop-filter: blur(8px);
        }

        .resource-card .card-body {
            padding: 22px 24px 24px;
        }

        .resource-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .resource-card .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .card-link i {
            transition: transform .3s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 992px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            border-radius: 32px;
            padding: 64px;
            text-align: center;
            background: linear-gradient(135deg, #1d4ed8, #06b6d4);
            color: #fff;
            overflow: hidden;
            margin: 60px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            margin: 0 auto 28px;
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
        }

        .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
        }

        .btn-outline-white {
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
                border-radius: 20px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .cta-buttons .btn {
                width: 100%;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1220;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

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

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #38bdf8;
            padding-left: 6px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom .links a {
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }

        .footer-bottom .links a:hover {
            color: #38bdf8;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 14px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb .current {
            color: #38bdf8;
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(120deg, #60a5fa, #22d3ee);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .mt-1 { margin-top: 8px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }

/* roulang page: article */
:root {
        --primary: #1d4ed8;
        --primary-light: #3b82f6;
        --primary-dark: #1e3a8a;
        --accent: #06b6d4;
        --accent-light: #22d3ee;
        --bg: #f4f7fb;
        --surface: #ffffff;
        --text: #0f172a;
        --text-soft: #5b6b82;
        --border: #e2e8f0;
        --radius: 18px;
        --radius-sm: 12px;
        --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
        --shadow: 0 12px 36px rgba(15, 23, 42, .10);
        --shadow-lg: 0 24px 60px rgba(15, 23, 42, .14);
        --container: 1200px;
        --header-h: 80px;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: color .25s ease;
    }
    button {
        font-family: inherit;
        border: none;
        background: none;
        cursor: pointer;
    }
    .container {
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
        position: sticky;
        top: 18px;
        z-index: 100;
        padding: 0 24px;
    }
    .nav-pill {
        max-width: var(--container);
        margin: 0 auto;
        display: flex;
        align-items: center;
        gap: 20px;
        background: rgba(255, 255, 255, .82);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid rgba(255, 255, 255, .65);
        border-radius: 60px;
        padding: 10px 24px;
        box-shadow: var(--shadow-sm);
        transition: box-shadow .3s, background .3s;
    }
    .nav-pill:hover {
        box-shadow: var(--shadow);
    }
    .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 800;
        color: var(--primary-dark);
        letter-spacing: .5px;
        white-space: nowrap;
    }
    .logo-dot {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary-light), var(--accent));
        flex-shrink: 0;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-left: 12px;
        flex: 1;
    }
    .nav-links a {
        display: inline-flex;
        align-items: center;
        padding: 8px 18px;
        border-radius: 30px;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-soft);
        transition: all .25s ease;
    }
    .nav-links a:hover {
        color: var(--primary);
        background: rgba(37, 99, 235, .08);
    }
    .nav-links a.active {
        color: #fff;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
    }
    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 10px 20px;
        border-radius: 30px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        color: #fff;
        font-size: 14px;
        font-weight: 700;
        box-shadow: 0 6px 18px rgba(29, 78, 216, .28);
        transition: all .25s ease;
        white-space: nowrap;
    }
    .nav-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 24px rgba(29, 78, 216, .36);
    }
    .nav-cta svg {
        width: 16px;
        height: 16px;
    }
    .mobile-toggle {
        display: none;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        align-items: center;
        justify-content: center;
        background: rgba(29, 78, 216, .08);
        color: var(--primary);
    }
    .mobile-toggle svg {
        width: 22px;
        height: 22px;
    }
    @media (max-width: 768px) {
        .site-header {
            top: 10px;
            padding: 0 14px;
        }
        .nav-pill {
            gap: 10px;
            padding: 8px 16px;
        }
        .nav-links {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            left: 0;
            right: 0;
            margin: 0;
            flex-direction: column;
            background: #fff;
            border-radius: 20px;
            padding: 12px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }
        .site-header.menu-open .nav-links {
            display: flex;
        }
        .nav-links a {
            width: 100%;
            justify-content: center;
        }
        .nav-cta {
            padding: 8px 14px;
            font-size: 13px;
            margin-left: auto;
        }
        .mobile-toggle {
            display: inline-flex;
        }
    }
    @media (max-width: 520px) {
        .nav-cta span {
            display: none;
        }
        .nav-cta {
            padding: 10px;
        }
        .nav-logo {
            font-size: 15px;
        }
    }

    /* Hero */
    .article-hero {
        position: relative;
        background: linear-gradient(135deg, rgba(30, 58, 138, .92), rgba(6, 182, 212, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        padding: 100px 0 80px;
        border-radius: 0 0 42px 42px;
        overflow: hidden;
    }
    .article-hero::after {
        content: '';
        position: absolute;
        bottom: -60px;
        right: -40px;
        width: 320px;
        height: 320px;
        background: radial-gradient(circle, rgba(255, 255, 255, .14), transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }
    .article-hero .container {
        position: relative;
        z-index: 2;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: rgba(255, 255, 255, .82);
        margin-bottom: 22px;
        flex-wrap: wrap;
    }
    .breadcrumb a {
        color: rgba(255, 255, 255, .92);
        font-weight: 600;
    }
    .breadcrumb a:hover {
        opacity: .8;
    }
    .breadcrumb .separator {
        opacity: .6;
    }
    .hero-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, .18);
        border: 1px solid rgba(255, 255, 255, .28);
        color: #fff;
        padding: 6px 16px;
        border-radius: 30px;
        font-size: 13px;
        font-weight: 700;
        backdrop-filter: blur(6px);
        margin-bottom: 18px;
        letter-spacing: .4px;
    }
    .hero-title {
        color: #fff;
        font-size: clamp(26px, 4vw, 44px);
        font-weight: 900;
        line-height: 1.35;
        max-width: 800px;
        letter-spacing: .5px;
        text-shadow: 0 4px 18px rgba(0, 0, 0, .18);
    }
    .hero-meta {
        display: flex;
        align-items: center;
        gap: 20px;
        margin-top: 22px;
        color: rgba(255, 255, 255, .9);
        font-size: 14px;
        flex-wrap: wrap;
    }
    .hero-meta .meta-item {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        background: rgba(255, 255, 255, .14);
        padding: 6px 14px;
        border-radius: 30px;
        backdrop-filter: blur(4px);
    }
    .hero-meta svg {
        width: 15px;
        height: 15px;
    }

    /* 文章主体 */
    .article-main {
        padding: 56px 0 20px;
    }
    .article-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 360px;
        gap: 40px;
        align-items: start;
    }
    .article-content {
        background: var(--surface);
        border-radius: 24px;
        padding: 40px 44px;
        box-shadow: var(--shadow-sm);
        border: 1px solid rgba(226, 232, 240, .7);
    }

    /* 文章正文排版 */
    .article-body {
        font-size: 16.5px;
        line-height: 2;
        color: #2d3a4f;
    }
    .article-body h2 {
        font-size: 24px;
        font-weight: 800;
        color: var(--text);
        margin: 36px 0 16px;
        padding-left: 14px;
        border-left: 4px solid var(--primary);
        line-height: 1.4;
    }
    .article-body h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--text);
        margin: 28px 0 12px;
    }
    .article-body p {
        margin-bottom: 18px;
    }
    .article-body a {
        color: var(--primary);
        font-weight: 600;
        border-bottom: 1px solid rgba(29, 78, 216, .3);
        transition: all .2s;
    }
    .article-body a:hover {
        color: var(--accent);
        border-bottom-color: var(--accent);
    }
    .article-body ul,
    .article-body ol {
        margin: 0 0 20px 24px;
    }
    .article-body li {
        margin-bottom: 8px;
    }
    .article-body img {
        border-radius: 16px;
        box-shadow: var(--shadow-sm);
        margin: 24px 0;
    }
    .article-body blockquote {
        background: linear-gradient(135deg, #eff6ff, #f0fdff);
        border-left: 4px solid var(--primary);
        padding: 18px 24px;
        border-radius: 0 14px 14px 0;
        margin: 24px 0;
        color: var(--text-soft);
        font-style: italic;
    }
    .article-body table {
        width: 100%;
        border-collapse: collapse;
        margin: 24px 0;
        font-size: 14px;
    }
    .article-body th,
    .article-body td {
        border: 1px solid var(--border);
        padding: 10px 14px;
        text-align: left;
    }
    .article-body th {
        background: #f8fafc;
        font-weight: 700;
    }
    .article-body code {
        background: #f1f5f9;
        padding: 3px 8px;
        border-radius: 6px;
        font-size: 14px;
    }
    .article-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 30px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
    }
    .article-tags .tag {
        display: inline-block;
        padding: 6px 14px;
        border-radius: 20px;
        background: #eff6ff;
        color: var(--primary);
        font-size: 13px;
        font-weight: 600;
        transition: all .2s;
    }
    .article-tags .tag:hover {
        background: var(--primary);
        color: #fff;
    }
    .article-footer-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        margin-top: 32px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
        flex-wrap: wrap;
    }
    .btn-back {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 20px;
        border-radius: 30px;
        background: #f1f5f9;
        color: var(--text-soft);
        font-size: 14px;
        font-weight: 600;
        transition: all .25s;
    }
    .btn-back:hover {
        background: #eff6ff;
        color: var(--primary);
        transform: translateX(-3px);
    }
    .btn-share {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 18px;
        border-radius: 30px;
        background: linear-gradient(135deg, #e0f2fe, #cffafe);
        color: var(--primary-dark);
        font-size: 14px;
        font-weight: 600;
        transition: all .25s;
    }
    .btn-share:hover {
        box-shadow: var(--shadow-sm);
        transform: translateY(-2px);
    }

    /* 侧边栏 */
    .sidebar-card {
        background: var(--surface);
        border-radius: 20px;
        padding: 28px;
        box-shadow: var(--shadow-sm);
        border: 1px solid rgba(226, 232, 240, .7);
        margin-bottom: 24px;
    }
    .sidebar-title {
        font-size: 18px;
        font-weight: 800;
        color: var(--text);
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .sidebar-title::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        flex-shrink: 0;
    }
    .sidebar-list {
        list-style: none;
        padding: 0;
    }
    .sidebar-list li+li {
        border-top: 1px dashed var(--border);
    }
    .sidebar-link {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 0;
        font-size: 14px;
        color: var(--text-soft);
        transition: all .2s;
        line-height: 1.5;
    }
    .sidebar-link:hover {
        color: var(--primary);
        padding-left: 6px;
    }
    .sidebar-link .s-link-date {
        margin-left: auto;
        font-size: 12px;
        color: #94a3b8;
        white-space: nowrap;
        flex-shrink: 0;
    }
    .sidebar-mini-card {
        background: linear-gradient(135deg, #eff6ff, #f0fdff);
        border-radius: 16px;
        padding: 18px;
        margin-bottom: 14px;
        transition: all .25s;
    }
    .sidebar-mini-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-sm);
    }
    .sidebar-mini-card h4 {
        font-size: 15px;
        font-weight: 800;
        color: var(--primary-dark);
        margin-bottom: 6px;
    }
    .sidebar-mini-card p {
        font-size: 13px;
        color: var(--text-soft);
        line-height: 1.6;
    }
    .sidebar-mini-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        margin-top: 10px;
        color: var(--primary);
        font-size: 13px;
        font-weight: 700;
    }
    .sidebar-mini-link:hover {
        color: var(--accent);
    }

    /* 相关推荐 */
    .related-section {
        padding: 56px 0 20px;
    }
    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: 32px;
    }
    .section-title {
        font-size: clamp(24px, 3vw, 32px);
        font-weight: 900;
        color: var(--text);
        letter-spacing: .3px;
    }
    .section-subtitle {
        color: var(--text-soft);
        font-size: 15px;
        margin-top: 6px;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--surface);
        border-radius: 20px;
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        border: 1px solid rgba(226, 232, 240, .6);
        transition: all .3s ease;
        display: flex;
        flex-direction: column;
    }
    .related-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
    }
    .related-img {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16/9;
        background: #dbeafe;
    }
    .related-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s ease;
    }
    .related-card:hover .related-img img {
        transform: scale(1.06);
    }
    .related-img .cat-badge {
        position: absolute;
        top: 14px;
        left: 14px;
        background: rgba(29, 78, 216, .88);
        color: #fff;
        padding: 4px 12px;
        border-radius: 20px;
        font-size: 12px;
        font-weight: 700;
        backdrop-filter: blur(4px);
    }
    .related-content {
        padding: 20px 22px 24px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .related-content h3 {
        font-size: 17px;
        font-weight: 800;
        color: var(--text);
        line-height: 1.5;
        margin-bottom: 8px;
        transition: color .2s;
    }
    .related-card:hover .related-content h3 {
        color: var(--primary);
    }
    .related-content p {
        font-size: 14px;
        color: var(--text-soft);
        line-height: 1.7;
        flex: 1;
        margin-bottom: 16px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-content .meta-line {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 13px;
        color: #94a3b8;
    }

    /* FAQ */
    .faq-section {
        padding: 60px 0;
        background: linear-gradient(180deg, transparent, #eef3fa);
    }
    .faq-list {
        max-width: 860px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--surface);
        border-radius: 16px;
        margin-bottom: 14px;
        box-shadow: var(--shadow-sm);
        border: 1px solid rgba(226, 232, 240, .6);
        overflow: hidden;
        transition: all .25s;
    }
    .faq-item:hover {
        box-shadow: var(--shadow);
    }
    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        font-size: 16px;
        font-weight: 700;
        color: var(--text);
        text-align: left;
        transition: color .2s;
    }
    .faq-question:hover {
        color: var(--primary);
    }
    .faq-question .faq-icon {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #eff6ff;
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 400;
        flex-shrink: 0;
        transition: all .3s;
    }
    .faq-item.open .faq-icon {
        background: var(--primary);
        color: #fff;
        transform: rotate(45deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height .4s ease, padding .3s ease;
        padding: 0 24px;
        color: var(--text-soft);
        font-size: 15px;
        line-height: 1.8;
        border-top: 0 solid transparent;
    }
    .faq-item.open .faq-answer {
        max-height: 240px;
        padding: 0 24px 20px;
        border-top: 1px solid var(--border);
    }

    /* CTA */
    .cta-section {
        padding: 40px 0 80px;
    }
    .cta-inner {
        position: relative;
        border-radius: 28px;
        padding: 60px 48px;
        background: linear-gradient(135deg, #1e3a8a, #1d4ed8 55%, #06b6d4);
        overflow: hidden;
        text-align: center;
        box-shadow: 0 24px 60px rgba(29, 78, 216, .3);
    }
    .cta-inner::before {
        content: '';
        position: absolute;
        top: -80px;
        right: -80px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: rgba(255, 255, 255, .1);
    }
    .cta-inner::after {
        content: '';
        position: absolute;
        bottom: -60px;
        left: 10%;
        width: 180px;
        height: 180px;
        border-radius: 50%;
        background: rgba(255, 255, 255, .08);
    }
    .cta-inner .container {
        position: relative;
        z-index: 2;
    }
    .cta-title {
        color: #fff;
        font-size: clamp(24px, 3.2vw, 38px);
        font-weight: 900;
        line-height: 1.4;
        margin-bottom: 14px;
    }
    .cta-desc {
        color: rgba(255, 255, 255, .85);
        font-size: 16px;
        max-width: 620px;
        margin: 0 auto 30px;
    }
    .cta-btns {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }
    .btn-cta-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: #fff;
        color: var(--primary-dark);
        padding: 14px 32px;
        border-radius: 40px;
        font-size: 16px;
        font-weight: 800;
        box-shadow: 0 8px 24px rgba(0, 0, 0, .16);
        transition: all .3s;
    }
    .btn-cta-primary:hover {
        transform: translateY(-3px) scale(1.02);
        box-shadow: 0 14px 34px rgba(0, 0, 0, .22);
    }
    .btn-cta-ghost {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: rgba(255, 255, 255, .16);
        color: #fff;
        padding: 14px 30px;
        border-radius: 40px;
        font-size: 16px;
        font-weight: 700;
        border: 1px solid rgba(255, 255, 255, .4);
        backdrop-filter: blur(6px);
        transition: all .3s;
    }
    .btn-cta-ghost:hover {
        background: rgba(255, 255, 255, .28);
        transform: translateY(-3px);
    }

    /* 内容未找到 */
    .not-found-box {
        text-align: center;
        padding: 60px 20px;
    }
    .not-found-box h2 {
        font-size: 28px;
        color: var(--text);
        margin-bottom: 12px;
    }
    .not-found-box p {
        color: var(--text-soft);
        margin-bottom: 24px;
    }
    .btn-notfound {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: 30px;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        color: #fff;
        font-weight: 700;
        transition: all .3s;
        box-shadow: 0 8px 20px rgba(29, 78, 216, .28);
    }
    .btn-notfound:hover {
        transform: translateY(-3px);
        box-shadow: 0 14px 28px rgba(29, 78, 216, .38);
    }

    /* 页脚 */
    .site-footer {
        background: #0b1220;
        color: #94a3b8;
        padding: 60px 0 0;
        border-radius: 42px 42px 0 0;
        margin-top: 20px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(148, 163, 184, .16);
    }
    .footer-brand .logo-text {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: #8a9ab0;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 16px;
    }
    .footer-col ul {
        list-style: none;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col ul a {
        color: #8a9ab0;
        font-size: 14px;
        transition: color .2s, padding-left .2s;
    }
    .footer-col ul a:hover {
        color: var(--accent-light);
        padding-left: 4px;
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 22px 0;
        flex-wrap: wrap;
        font-size: 13px;
        color: #6b7c94;
    }
    .footer-bottom .links {
        display: flex;
        gap: 18px;
    }
    .footer-bottom .links a {
        color: #6b7c94;
        transition: color .2s;
    }
    .footer-bottom .links a:hover {
        color: var(--accent-light);
    }

    /* 响应式 */
    @media (max-width: 1024px) {
        .article-layout {
            grid-template-columns: 1fr;
        }
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 768px) {
        .article-hero {
            padding: 70px 0 60px;
            border-radius: 0 0 28px 28px;
        }
        .article-content {
            padding: 28px 22px;
            border-radius: 18px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .section-head {
            flex-direction: column;
            align-items: flex-start;
        }
    }
    @media (max-width: 520px) {
        .article-hero {
            padding: 54px 0 44px;
        }
        .hero-meta {
            gap: 10px;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .cta-inner {
            padding: 40px 24px;
            border-radius: 22px;
        }
        .btn-cta-primary,
        .btn-cta-ghost {
            width: 100%;
            justify-content: center;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .article-tags {
            justify-content: center;
        }
    }

    /* 焦点可访问性 */
    a:focus-visible,
    button:focus-visible {
        outline: 3px solid rgba(6, 182, 212, .5);
        outline-offset: 3px;
    }
    .nav-pill a:focus-visible,
    .nav-cta:focus-visible,
    .mobile-toggle:focus-visible {
        outline-color: rgba(255, 255, 255, .7);
    }