/* roulang page: index */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --accent: #b91c1c;
            --accent-hover: #991b1b;
            --accent-soft: #fef2f2;
            --gold: #d97706;
            --bg: #f8fafc;
            --bg-soft: #f1f5f9;
            --card-bg: #ffffff;
            --text: #1e293b;
            --text-soft: #475569;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --border-strong: #cbd5e1;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(15,23,42,0.06);
            --shadow-md: 0 8px 30px rgba(15,23,42,0.09);
            --shadow-lg: 0 20px 50px rgba(15,23,42,0.14);
            --spacing-section: 80px;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { text-decoration: none; color: var(--text); transition: all .25s ease; }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled { box-shadow: 0 6px 24px rgba(15,23,42,0.07); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
        .brand-logo {
            display: flex; align-items: center; gap: 10px;
            font-weight: 700; font-size: 1.35rem; letter-spacing: -0.01em;
            color: var(--text); white-space: nowrap;
        }
        .brand-logo .logo-mark {
            display: inline-flex; align-items: center; justify-content: center;
            width: 38px; height: 38px; background: var(--accent); color: #fff;
            border-radius: 8px; font-size: .85rem; font-weight: 600;
            flex-shrink: 0;
        }
        .nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
        .nav-links a {
            font-size: .95rem; font-weight: 500; color: var(--text-soft);
            position: relative; padding: 4px 0; white-space: nowrap;
        }
        .nav-links a::after {
            content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
            background: var(--accent); border-radius: 2px; transition: width .3s ease;
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a:hover { color: var(--accent); }
        .nav-links a.active { color: var(--accent); font-weight: 600; }
        .header-cta {
            display: inline-flex; align-items: center; gap: 6px;
            background: var(--primary); color: #fff; border: none;
            padding: 10px 22px; border-radius: 30px; font-size: .9rem; font-weight: 600;
            transition: all .3s ease; white-space: nowrap;
        }
        .header-cta:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(185,28,28,0.3); }
        .mobile-toggle {
            display: none; background: none; border: none; font-size: 1.5rem;
            color: var(--text); cursor: pointer; padding: 4px 8px;
        }
        @media (max-width: 992px) {
            .mobile-toggle { display: inline-block; }
            .nav-links {
                display: none; flex-direction: column; align-items: flex-start; gap: 16px;
                background: #fff; padding: 20px; border-radius: var(--radius-md);
                box-shadow: var(--shadow-md); position: absolute; top: 100%; left: 0; right: 0;
                margin-top: 10px; border: 1px solid var(--border);
            }
            .nav-links.open { display: flex; }
            .container { position: relative; }
            .header-cta { display: none; }
        }

        /* Hero */
        .hero-section {
            position: relative; overflow: hidden;
            background: var(--primary); color: #fff;
            padding: 100px 0 110px;
            min-height: 560px;
            display: flex; align-items: center;
        }
        .hero-bg {
            position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
            opacity: 0.3; z-index: 0;
        }
        .hero-overlay {
            position: absolute; inset: 0; z-index: 1;
            background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.55) 55%, rgba(185,28,28,0.35) 100%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 800px; }
        .hero-tag {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.22);
            padding: 6px 16px; border-radius: 30px; font-size: .8rem; font-weight: 500;
            letter-spacing: .04em; margin-bottom: 22px; color: #fef3c7;
        }
        .hero-title {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 24px;
        }
        .hero-desc {
            font-size: 1.05rem; line-height: 1.85; color: #e2e8f0;
            max-width: 680px; margin-bottom: 36px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .btn-hero-primary {
            background: var(--accent); color: #fff; border: none;
            padding: 14px 32px; border-radius: 40px; font-size: 1rem; font-weight: 600;
            transition: all .3s ease; display: inline-flex; align-items: center; gap: 8px;
        }
        .btn-hero-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-3px); box-shadow: 0 10px 28px rgba(185,28,28,0.4); }
        .btn-hero-secondary {
            background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.4);
            padding: 14px 30px; border-radius: 40px; font-size: 1rem; font-weight: 500;
            transition: all .3s ease;
        }
        .btn-hero-secondary:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.7); }
        .hero-stats { display: flex; gap: 40px; margin-top: 48px; flex-wrap: wrap; }
        .hero-stat .stat-num { font-size: 1.8rem; font-weight: 700; color: #fbbf24; }
        .hero-stat .stat-label { font-size: .85rem; color: #cbd5e1; }

        /* Section base */
        .section { padding: var(--spacing-section) 0; }
        .section-alt { background: var(--bg-soft); }
        .section-dark { background: var(--primary); color: #fff; }
        .section-label {
            display: inline-block; font-size: .82rem; font-weight: 600;
            color: var(--accent); letter-spacing: .08em; text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 700; line-height: 1.25; letter-spacing: -0.01em;
            margin-bottom: 18px;
        }
        .section-desc {
            font-size: 1rem; color: var(--text-soft); line-height: 1.85;
            max-width: 720px; margin-bottom: 40px;
        }
        .section-dark .section-desc { color: #cbd5e1; }
        .section-dark .section-title { color: #fff; }
        .section-dark .section-label { color: #fbbf24; }

        /* Cards */
        .benefit-card {
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: var(--radius-md); padding: 30px 26px;
            transition: all .35s ease; height: 100%;
        }
        .benefit-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); border-color: #fca5a5; }
        .benefit-icon {
            width: 52px; height: 52px; border-radius: 14px; display: flex;
            align-items: center; justify-content: center; font-size: 1.3rem;
            margin-bottom: 18px; background: var(--accent-soft); color: var(--accent);
        }
        .benefit-card h3 { font-size: 1.15rem; font-weight: 650; margin-bottom: 10px; }
        .benefit-card p { font-size: .9rem; color: var(--text-muted); margin: 0; line-height: 1.7; }

        /* Material / Promo band */
        .promo-band {
            background: var(--primary); border-radius: var(--radius-lg);
            padding: 50px 45px; color: #fff; position: relative; overflow: hidden;
        }
        .promo-band::after {
            content: ''; position: absolute; right: -80px; top: -80px;
            width: 280px; height: 280px; border-radius: 50%;
            background: rgba(185,28,28,0.25); pointer-events: none;
        }
        .promo-band h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 14px; }
        .promo-band p { color: #cbd5e1; margin-bottom: 20px; max-width: 600px; }
        .promo-band .btn-outline-light-custom {
            background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.45);
            padding: 10px 24px; border-radius: 30px; font-weight: 500; transition: all .3s ease;
        }
        .promo-band .btn-outline-light-custom:hover { background: #fff; color: var(--primary); }

        /* Settlement / process */
        .process-step {
            display: flex; gap: 18px; align-items: flex-start;
            padding: 22px 0; border-bottom: 1px dashed var(--border-strong);
        }
        .process-step:last-child { border-bottom: none; }
        .step-num {
            width: 42px; height: 42px; border-radius: 50%; background: var(--primary);
            color: #fff; font-weight: 700; font-size: .95rem; flex-shrink: 0;
            display: flex; align-items: center; justify-content: center;
        }
        .process-step h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
        .process-step p { font-size: .9rem; color: var(--text-muted); margin: 0; }

        /* Case cards */
        .case-card {
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: var(--radius-md); overflow: hidden;
            transition: all .35s ease; height: 100%;
        }
        .case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); }
        .case-card img { width: 100%; height: 200px; object-fit: cover; }
        .case-body { padding: 22px 20px; }
        .case-tag {
            display: inline-block; background: var(--accent-soft); color: var(--accent);
            font-size: .72rem; font-weight: 600; padding: 3px 12px;
            border-radius: 20px; margin-bottom: 10px;
        }
        .case-body h3 { font-size: 1.05rem; font-weight: 650; margin-bottom: 8px; }
        .case-body p { font-size: .88rem; color: var(--text-muted); margin: 0; }

        /* News / CMS list */
        .news-list-item {
            display: flex; gap: 18px; padding: 18px;
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: var(--radius-md); margin-bottom: 14px;
            transition: all .3s ease; align-items: flex-start;
        }
        .news-list-item:hover { box-shadow: var(--shadow-sm); border-color: #fca5a5; }
        .news-thumb {
            width: 120px; height: 80px; object-fit: cover;
            border-radius: var(--radius-sm); flex-shrink: 0;
        }
        .news-content { flex: 1; }
        .news-content h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; line-height: 1.4; }
        .news-content .news-meta {
            font-size: .8rem; color: var(--text-muted);
            display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
        }
        .news-content .news-summary { font-size: .88rem; color: var(--text-soft); margin-top: 6px; line-height: 1.6; }

        /* Join CTA */
        .join-cta {
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a5f 100%);
            border-radius: var(--radius-lg); padding: 60px 50px;
            color: #fff; text-align: left;
        }
        .join-cta h2 { font-size: 2rem; font-weight: 700; margin-bottom: 16px; }
        .join-cta p { color: #cbd5e1; font-size: 1rem; margin-bottom: 28px; max-width: 560px; }
        .join-cta .btn-accent-lg {
            background: var(--accent); color: #fff; border: none;
            padding: 14px 36px; border-radius: 40px; font-size: 1.05rem; font-weight: 600;
            transition: all .3s ease; display: inline-flex; align-items: center; gap: 8px;
        }
        .join-cta .btn-accent-lg:hover { background: var(--accent-hover); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(185,28,28,0.4); }

        /* Footer */
        .site-footer {
            background: var(--primary); color: #94a3b8;
            padding: 60px 0 30px; border-top: 1px solid var(--border);
        }
        .footer-brand { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .footer-desc { font-size: .9rem; max-width: 400px; line-height: 1.7; margin-bottom: 20px; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: #94a3b8; font-size: .9rem; transition: color .25s ease; }
        .footer-links a:hover { color: #fff; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px; margin-top: 40px;
            display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
            font-size: .85rem; color: #64748b;
        }

        /* Responsive */
        @media (max-width: 768px) {
            :root { --spacing-section: 56px; }
            .hero-section { padding: 70px 0 80px; min-height: auto; }
            .hero-stats { gap: 24px; }
            .hero-stat .stat-num { font-size: 1.4rem; }
            .promo-band { padding: 34px 26px; }
            .join-cta { padding: 40px 28px; }
            .news-thumb { width: 90px; height: 64px; }
            .news-list-item { padding: 14px; gap: 12px; }
            .section-title { font-size: 1.5rem; }
            .btn-hero-primary, .btn-hero-secondary { padding: 12px 22px; font-size: .9rem; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .hero-title { font-size: 1.65rem; }
            .hero-desc { font-size: .95rem; }
            .hero-actions { flex-direction: column; align-items: flex-start; }
            .hero-stats { gap: 18px; }
            .promo-band { padding: 26px 18px; }
            .process-step { flex-direction: column; gap: 12px; }
            .news-list-item { flex-direction: column; }
            .news-thumb { width: 100%; height: 150px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }

        /* Misc */
        .text-accent { color: var(--accent); }
        .fw-650 { font-weight: 650; }
        .gap-sm-3 { gap: 1rem; }
        .img-cover { width: 100%; height: 100%; object-fit: cover; }
        .link-arrow {
            display: inline-flex; align-items: center; gap: 6px; font-weight: 600;
            color: var(--accent); font-size: .9rem; transition: gap .3s ease;
        }
        .link-arrow:hover { gap: 10px; color: var(--accent-hover); }
        .disabled-link { pointer-events: none; opacity: .6; }

/* roulang page: article */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --accent: #b91c1c;
            --accent-hover: #991b1b;
            --accent-soft: #fef2f2;
            --gold: #d97706;
            --bg: #f8fafc;
            --bg-soft: #f1f5f9;
            --card-bg: #ffffff;
            --text: #1e293b;
            --text-soft: #475569;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --border-strong: #cbd5e1;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.09);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
            --spacing-section: 72px;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: var(--text);
            transition: all .25s ease;
        }
        a:hover {
            color: var(--accent);
        }

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

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(15, 23, 42, 0.07);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--text);
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: #fff;
            border-radius: 8px;
            font-size: .85rem;
            font-weight: 600;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-soft);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width .3s ease;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a:hover {
            color: var(--accent);
        }
        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: .9rem;
            font-weight: 600;
            transition: all .3s ease;
            white-space: nowrap;
        }
        .header-cta:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(185, 28, 28, 0.3);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb-list {
            list-style: none;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin: 0;
            padding: 0;
            font-size: .85rem;
            color: var(--text-muted);
        }
        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-list li + li::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: .7rem;
            color: var(--border-strong);
        }
        .breadcrumb-list a {
            color: var(--text-muted);
        }
        .breadcrumb-list a:hover {
            color: var(--accent);
        }
        .breadcrumb-list .current {
            color: var(--text);
            font-weight: 500;
        }

        /* Article Hero */
        .article-hero {
            position: relative;
            overflow: hidden;
            background: var(--primary);
            color: #fff;
            padding: 70px 0 80px;
        }
        .article-hero-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.25;
            z-index: 0;
        }
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.65) 55%, rgba(185, 28, 28, 0.2) 100%);
        }
        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .article-hero .breadcrumb-list {
            margin-bottom: 18px;
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb-list a,
        .article-hero .breadcrumb-list .current {
            color: #cbd5e1;
        }
        .article-hero .breadcrumb-list a:hover {
            color: #fff;
        }
        .article-hero .breadcrumb-list li + li::before {
            color: rgba(255, 255, 255, 0.3);
        }
        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .03em;
            margin-bottom: 16px;
        }
        .article-hero-title {
            font-size: clamp(1.8rem, 4vw, 2.7rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            font-size: .85rem;
            color: #cbd5e1;
            margin-bottom: 20px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            font-size: .8rem;
            color: #94a3b8;
        }
        .article-excerpt {
            font-size: 1rem;
            line-height: 1.8;
            color: #e2e8f0;
            max-width: 720px;
            margin-bottom: 28px;
            border-left: 3px solid var(--accent);
            padding-left: 18px;
        }
        .version-timeline {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 28px;
        }
        .version-node {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: .8rem;
            color: #e2e8f0;
            transition: all .25s ease;
        }
        .version-node:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .version-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold);
            flex-shrink: 0;
        }
        .article-hero .btn-hero-primary {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 13px 30px;
            border-radius: 40px;
            font-size: .95rem;
            font-weight: 600;
            transition: all .3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-hero .btn-hero-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(185, 28, 28, 0.35);
        }

        /* Article Body Section */
        .article-body-section {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }
        .article-main {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .article-main .article-body-inner {
            max-width: 720px;
            margin: 0 auto;
        }
        .article-body-inner h2,
        .article-body-inner h3,
        .article-body-inner h4 {
            color: var(--text);
            font-weight: 700;
            margin-top: 2em;
            margin-bottom: 0.8em;
            line-height: 1.4;
        }
        .article-body-inner h2 {
            font-size: 1.5rem;
        }
        .article-body-inner h3 {
            font-size: 1.25rem;
        }
        .article-body-inner p {
            color: var(--text-soft);
            margin-bottom: 1.2em;
            line-height: 1.85;
            font-size: 1rem;
        }
        .article-body-inner img {
            border-radius: var(--radius-md);
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body-inner ul,
        .article-body-inner ol {
            padding-left: 24px;
            margin-bottom: 1.2em;
        }
        .article-body-inner li {
            color: var(--text-soft);
            margin-bottom: 0.6em;
            line-height: 1.8;
        }
        .article-body-inner blockquote {
            border-left: 4px solid var(--accent);
            background: var(--accent-soft);
            padding: 18px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-soft);
            font-style: normal;
        }
        .article-body-inner a {
            color: var(--accent);
            font-weight: 500;
        }
        .article-body-inner a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .article-not-found i {
            font-size: 3rem;
            color: var(--border-strong);
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-not-found a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            transition: all .3s ease;
        }
        .article-not-found a:hover {
            background: var(--accent);
            color: #fff;
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--accent);
            font-size: .9rem;
        }
        .sidebar-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list .sidebar-thumb {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-list a {
            font-size: .88rem;
            font-weight: 500;
            color: var(--text-soft);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .25s ease;
        }
        .sidebar-list a:hover {
            color: var(--accent);
        }
        .sidebar-date {
            font-size: .72rem;
            color: var(--text-muted);
            display: block;
            margin-top: 4px;
        }
        .sidebar-subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-subscribe-form input {
            width: 100%;
            padding: 10px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: .88rem;
            font-family: var(--font-sans);
            transition: all .25s ease;
            outline: none;
        }
        .sidebar-subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.1);
        }
        .sidebar-subscribe-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 11px 20px;
            border-radius: var(--radius-sm);
            font-size: .88rem;
            font-weight: 600;
            cursor: pointer;
            transition: all .3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        .sidebar-subscribe-form button:hover {
            background: var(--accent);
            transform: translateY(-1px);
        }
        .sidebar-channel-link {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            transition: all .3s ease;
        }
        .sidebar-channel-link:hover {
            background: var(--accent-soft);
        }
        .sidebar-channel-link .channel-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .85rem;
            flex-shrink: 0;
        }
        .sidebar-channel-link span {
            font-size: .88rem;
            font-weight: 600;
            color: var(--text);
        }
        .sidebar-channel-link:hover span {
            color: var(--accent);
        }

        /* Related Section */
        .related-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-soft);
        }
        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .section-heading h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.01em;
            margin: 0;
        }
        .section-heading .view-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: color .25s ease;
        }
        .section-heading .view-more:hover {
            color: var(--accent);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all .3s ease;
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-strong);
        }
        .related-card .related-thumb {
            width: 88px;
            height: 66px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .related-card .related-info {
            flex: 1;
            min-width: 0;
        }
        .related-card .related-info h3 {
            font-size: .92rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 6px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .related-info .related-meta {
            font-size: .75rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .related-card:hover .related-info h3 {
            color: var(--accent);
        }

        /* Channel Entry */
        .channel-entry-section {
            padding: var(--spacing-section) 0;
            background: #fff;
        }
        .channel-card {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            color: #fff;
            overflow: hidden;
            position: relative;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 28px;
            justify-content: space-between;
        }
        .channel-card .channel-text {
            flex: 1;
            min-width: 280px;
        }
        .channel-card .channel-text h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .channel-card .channel-text p {
            color: #cbd5e1;
            margin: 0;
            font-size: .95rem;
            line-height: 1.7;
            max-width: 520px;
        }
        .channel-card .channel-link-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            padding: 12px 26px;
            border-radius: 40px;
            font-weight: 600;
            font-size: .9rem;
            transition: all .3s ease;
            white-space: nowrap;
        }
        .channel-card .channel-link-btn:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        /* Subscribe CTA */
        .subscribe-cta {
            padding: var(--spacing-section) 0;
            background: var(--bg-soft);
        }
        .subscribe-wrapper {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .subscribe-wrapper h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .subscribe-wrapper p {
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto 28px;
            font-size: .95rem;
            line-height: 1.75;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 20px;
            border: 1px solid var(--border);
            border-radius: 40px;
            font-size: .9rem;
            font-family: var(--font-sans);
            outline: none;
            transition: all .25s ease;
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.1);
        }
        .subscribe-form button {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 13px 28px;
            border-radius: 40px;
            font-size: .9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all .3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(185, 28, 28, 0.3);
        }

        /* Guarantee Bar */
        .guarantee-section {
            padding: 40px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            transition: all .3s ease;
        }
        .guarantee-item:hover {
            background: var(--accent-soft);
        }
        .guarantee-item .icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .guarantee-item .text h5 {
            font-size: .92rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 4px;
        }
        .guarantee-item .text p {
            font-size: .8rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Return Home */
        .return-home-section {
            padding: 32px 0;
            background: var(--bg);
        }
        .return-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .92rem;
            font-weight: 500;
            color: var(--text-soft);
            transition: color .25s ease;
        }
        .return-home-link:hover {
            color: var(--accent);
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #cbd5e1;
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .footer-desc {
            font-size: .85rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 380px;
        }
        .site-footer h5 {
            font-size: .95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: .88rem;
            transition: color .25s ease;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: .78rem;
            color: #64748b;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container { max-width: 960px; padding-left: 20px; padding-right: 20px; }
            .article-layout { grid-template-columns: 1fr; gap: 28px; }
            .article-main { padding: 28px 20px; }
            .related-grid { grid-template-columns: 1fr; }
            .guarantee-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .site-header { padding: 10px 0; }
            .mobile-toggle { display: inline-block; }
            .nav-links {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                background: #fff;
                padding: 20px;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-md);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                margin-top: 10px;
                border: 1px solid var(--border);
            }
            .nav-links.open { display: flex; }
            .header-cta { display: none; }
            .container { position: relative; }
            .article-hero { padding: 50px 0 60px; }
            .article-main { padding: 24px 18px; border-radius: var(--radius-md); }
            .article-body-inner p { font-size: .95rem; }
            .related-grid { grid-template-columns: 1fr; }
            .related-card { padding: 12px; }
            .related-card .related-thumb { width: 72px; height: 54px; }
            .channel-card { padding: 28px 20px; flex-direction: column; align-items: flex-start; }
            .subscribe-wrapper { padding: 32px 20px; }
            .guarantee-grid { grid-template-columns: 1fr; }
            .article-layout { gap: 20px; }
            .article-sidebar { gap: 16px; }
        }

        @media (max-width: 520px) {
            .article-hero-title { font-size: 1.6rem; }
            .article-meta { gap: 10px; font-size: .78rem; }
            .version-timeline { gap: 8px; }
            .version-node { padding: 6px 12px; font-size: .72rem; }
            .article-excerpt { font-size: .9rem; padding-left: 12px; }
            .section-heading h2 { font-size: 1.3rem; }
            .related-card .related-thumb { width: 60px; height: 46px; }
            .related-card .related-info h3 { font-size: .82rem; }
            .subscribe-form input { min-width: 100%; }
            .subscribe-form button { width: 100%; }
            .channel-card .channel-text h3 { font-size: 1.2rem; }
        }

/* roulang page: category1 */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --accent: #b91c1c;
            --accent-hover: #991b1b;
            --accent-soft: #fef2f2;
            --gold: #d97706;
            --bg: #f8fafc;
            --bg-soft: #f1f5f9;
            --card-bg: #ffffff;
            --text: #1e293b;
            --text-soft: #475569;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --border-strong: #cbd5e1;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(15,23,42,0.06);
            --shadow-md: 0 8px 30px rgba(15,23,42,0.09);
            --shadow-lg: 0 20px 50px rgba(15,23,42,0.14);
            --spacing-section: 72px;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { text-decoration: none; color: var(--text); transition: all .25s ease; }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1240px; padding-left: 24px; padding-right: 24px; position: relative; }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled { box-shadow: 0 6px 24px rgba(15,23,42,0.07); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
        .brand-logo {
            display: flex; align-items: center; gap: 10px;
            font-weight: 700; font-size: 1.35rem; letter-spacing: -0.01em;
            color: var(--text); white-space: nowrap;
        }
        .brand-logo:hover { color: var(--text); }
        .brand-logo .logo-mark {
            display: inline-flex; align-items: center; justify-content: center;
            width: 38px; height: 38px; background: var(--accent); color: #fff;
            border-radius: 8px; font-size: .85rem; font-weight: 600;
            flex-shrink: 0;
        }
        .nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
        .nav-links a {
            font-size: .95rem; font-weight: 500; color: var(--text-soft);
            position: relative; padding: 4px 0; white-space: nowrap;
        }
        .nav-links a::after {
            content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
            background: var(--accent); border-radius: 2px; transition: width .3s ease;
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a:hover { color: var(--accent); }
        .nav-links a.active { color: var(--accent); font-weight: 600; }
        .header-cta {
            display: inline-flex; align-items: center; gap: 6px;
            background: var(--primary); color: #fff; border: none;
            padding: 10px 22px; border-radius: 30px; font-size: .9rem; font-weight: 600;
            transition: all .3s ease; white-space: nowrap;
        }
        .header-cta:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(185,28,28,0.3); }
        .mobile-toggle {
            display: none; background: none; border: none; font-size: 1.5rem;
            color: var(--text); cursor: pointer; padding: 4px 8px;
        }

        /* Hero */
        .hero-section {
            position: relative; overflow: hidden;
            background: var(--primary); color: #fff;
            padding: 90px 0 100px;
            min-height: 520px;
            display: flex; align-items: center; text-align: center;
        }
        .hero-bg {
            position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
            opacity: 0.22; z-index: 0;
        }
        .hero-overlay {
            position: absolute; inset: 0; z-index: 1;
            background: linear-gradient(135deg, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.65) 55%, rgba(185,28,28,0.3) 100%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 820px; margin: 0 auto; }
        .hero-tag {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
            padding: 6px 16px; border-radius: 30px; font-size: .82rem; font-weight: 500;
            backdrop-filter: blur(8px); margin-bottom: 22px;
        }
        .hero-title { font-size: 3.2rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 20px; line-height: 1.2; }
        .hero-subtitle { font-size: 1.1rem; color: rgba(255,255,255,0.82); margin-bottom: 36px; font-weight: 400; }
        .hero-search { max-width: 560px; margin: 0 auto 28px; }
        .hero-search .input-group {
            border-radius: 40px; overflow: hidden; box-shadow: 0 8px 30px rgba(0,0,0,0.25);
            background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25);
            backdrop-filter: blur(10px);
        }
        .hero-search .form-control {
            background: transparent; border: none; color: #fff; padding: 14px 22px; font-size: 1rem;
        }
        .hero-search .form-control::placeholder { color: rgba(255,255,255,0.55); }
        .hero-search .form-control:focus { box-shadow: none; outline: none; }
        .hero-search .btn-search {
            background: var(--accent); border: none; color: #fff; padding: 0 28px;
            font-weight: 600; border-radius: 0; transition: all .3s ease; white-space: nowrap;
        }
        .hero-search .btn-search:hover { background: var(--accent-hover); }
        .hero-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
        .hero-chip {
            display: inline-block; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
            padding: 7px 18px; border-radius: 30px; color: #fff; font-size: .85rem;
            transition: all .3s ease; cursor: pointer; cursor: pointer;
        }
        .hero-chip:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.35); color: #fff; }
        .hero-cta-btn {
            display: inline-flex; align-items: center; gap: 8px;
            background: #fff; color: var(--primary); border: none;
            padding: 14px 36px; border-radius: 40px; font-size: .95rem; font-weight: 700;
            transition: all .3s ease; margin-top: 32px;
        }
        .hero-cta-btn:hover { background: var(--accent); color: #fff; transform: translateY(-3px); box-shadow: 0 12px 28px rgba(185,28,28,0.35); }

        /* Section */
        .section-pad { padding: var(--spacing-section) 0; }
        .section-pad-sm { padding: 48px 0; }
        .section-alt { background: var(--bg-soft); }
        .section-dark { background: var(--primary); color: #fff; }
        .section-label {
            display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: 1.5px;
            text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
        }
        .section-title { font-size: 2.1rem; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 14px; line-height: 1.25; }
        .section-desc { color: var(--text-muted); font-size: 1.05rem; max-width: 640px; margin-bottom: 40px; }
        .section-dark .section-desc { color: rgba(255,255,255,0.7); }

        /* Cards */
        .feature-card {
            background: var(--card-bg); border-radius: var(--radius-md); padding: 30px 26px;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border);
            transition: all .35s ease; height: 100%;
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
        .feature-icon {
            width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
            font-size: 1.25rem; margin-bottom: 18px; flex-shrink: 0;
        }
        .feature-icon.red { background: var(--accent-soft); color: var(--accent); }
        .feature-icon.gold { background: #fefce8; color: var(--gold); }
        .feature-icon.blue { background: #eff6ff; color: #1d4ed8; }
        .feature-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
        .feature-card p { color: var(--text-muted); font-size: .95rem; margin-bottom: 0; }

        .scenario-card {
            position: relative; overflow: hidden; border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm); border: 1px solid var(--border); height: 100%;
        }
        .scenario-card img { width: 100%; height: 220px; object-fit: cover; transition: transform .5s ease; }
        .scenario-card:hover img { transform: scale(1.05); }
        .scenario-body { padding: 22px; }
        .scenario-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
        .scenario-body p { color: var(--text-muted); font-size: .9rem; margin-bottom: 0; }

        .stat-card {
            background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-md); padding: 30px 20px; text-align: center;
            transition: all .3s ease; height: 100%;
        }
        .stat-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
        .stat-number { font-size: 2.4rem; font-weight: 800; color: #fff; letter-spacing: -0.01em; }
        .stat-number span { color: var(--gold); }
        .stat-label { color: rgba(255,255,255,0.7); font-size: .88rem; margin-top: 6px; }

        .compare-card {
            border-radius: var(--radius-md); padding: 30px 26px; height: 100%;
            background: #fff; border: 2px solid var(--border);
            transition: all .3s ease;
        }
        .compare-card.highlight { border-color: var(--accent); background: var(--accent-soft); box-shadow: var(--shadow-md); }
        .compare-card .compare-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .compare-card ul { list-style: none; padding: 0; margin: 0; }
        .compare-card ul li { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .9rem; color: var(--text-soft); display: flex; align-items: flex-start; gap: 8px; }
        .compare-card ul li:last-child { border-bottom: none; }
        .compare-card ul li i { margin-top: 4px; flex-shrink: 0; }
        .check-icon { color: #16a34a; }
        .cross-icon { color: #dc2626; }

        .cms-article-card {
            display: block; background: #fff; border-radius: var(--radius-md); overflow: hidden;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border);
            transition: all .35s ease; height: 100%;
        }
        .cms-article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); color: var(--text); }
        .cms-article-body { padding: 20px 22px; }
        .cms-article-body h3 { font-size: 1.02rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
        .cms-article-body .cms-excerpt { color: var(--text-muted); font-size: .88rem; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .cms-meta { display: flex; align-items: center; gap: 12px; font-size: .78rem; color: var(--text-muted); }
        .cms-badge { background: var(--accent-soft); color: var(--accent); padding: 3px 12px; border-radius: 20px; font-weight: 600; font-size: .75rem; }
        .cms-empty {
            text-align: center; padding: 60px 0; color: var(--text-muted);
            font-size: 1.05rem; background: #fff; border-radius: var(--radius-md); border: 1px dashed var(--border-strong);
        }

        .accordion-custom .accordion-item {
            background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm) !important;
            margin-bottom: 12px; overflow: hidden; box-shadow: var(--shadow-sm);
        }
        .accordion-custom .accordion-button {
            background: #fff; color: var(--text); font-weight: 600; font-size: .98rem;
            padding: 18px 22px; border: none; box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed) { background: #fff; color: var(--accent); }
        .accordion-custom .accordion-button:focus { box-shadow: none; border-color: transparent; }
        .accordion-custom .accordion-button::after { background-size: 1.1rem; transition: all .3s ease; }
        .accordion-custom .accordion-body { color: var(--text-soft); font-size: .92rem; padding: 0 22px 20px; background: #fff; }

        .assurance-bar {
            background: var(--card-bg); border-radius: var(--radius-lg); padding: 36px 32px;
            border: 1px solid var(--border); box-shadow: var(--shadow-md); text-align: center;
            max-width: 900px; margin: 0 auto;
        }
        .assurance-bar .assurance-title { font-size: 1.5rem; font-weight: 800; margin-bottom: 10px; }
        .assurance-bar .assurance-desc { color: var(--text-muted); font-size: .98rem; margin-bottom: 24px; }
        .badge-item {
            display: inline-flex; align-items: center; gap: 8px;
            background: var(--bg-soft); border: 1px solid var(--border); border-radius: 30px;
            padding: 8px 20px; font-size: .85rem; font-weight: 500; color: var(--text-soft);
        }
        .badge-item i { color: var(--accent); }

        /* Bottom fixed CTA */
        .bottom-cta-bar {
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 998;
            background: rgba(15,23,42,0.96); backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 12px 0; transform: translateY(100%);
            transition: transform .4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 -8px 30px rgba(0,0,0,0.18);
        }
        .bottom-cta-bar.show { transform: translateY(0); }
        .bottom-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
        .bottom-cta-text { color: #fff; font-size: .92rem; font-weight: 500; }
        .bottom-cta-text strong { color: var(--gold); }
        .bottom-cta-btn {
            background: var(--accent); color: #fff; border: none; padding: 10px 26px;
            border-radius: 30px; font-size: .88rem; font-weight: 600; display: inline-flex;
            align-items: center; gap: 6px; transition: all .3s ease; white-space: nowrap;
        }
        .bottom-cta-btn:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); }

        /* Footer */
        .site-footer { background: var(--primary); color: rgba(255,255,255,0.75); padding: 56px 0 28px; }
        .footer-brand { font-size: 1.4rem; font-weight: 700; color: #fff; margin-bottom: 14px; }
        .footer-desc { color: rgba(255,255,255,0.6); font-size: .9rem; line-height: 1.7; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255,255,255,0.7); font-size: .9rem; transition: all .25s ease; }
        .footer-links a:hover { color: #fff; padding-left: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px; padding-top: 20px;
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px;
            font-size: .82rem; color: rgba(255,255,255,0.5);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .mobile-toggle { display: inline-block; }
            .nav-links {
                display: none; flex-direction: column; align-items: flex-start; gap: 16px;
                background: #fff; padding: 20px; border-radius: var(--radius-md);
                box-shadow: var(--shadow-md); position: absolute; top: 100%; left: 0; right: 0;
                margin-top: 10px; border: 1px solid var(--border);
            }
            .nav-links.open { display: flex; }
            .header-cta { display: none; }
            .hero-title { font-size: 2.4rem; }
            .hero-section { padding: 70px 0 80px; min-height: 460px; }
            .section-title { font-size: 1.7rem; }
            .section-pad { padding: 56px 0; }
            :root { --spacing-section: 56px; }
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2rem; }
            .hero-subtitle { font-size: .98rem; }
            .hero-section { padding: 56px 0 64px; min-height: 420px; }
            .section-title { font-size: 1.45rem; }
            .section-pad { padding: 44px 0; }
            :root { --spacing-section: 44px; }
            .bottom-cta-text { font-size: .82rem; }
            .bottom-cta-btn { padding: 8px 18px; font-size: .82rem; }
            .container { padding-left: 16px; padding-right: 16px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .assurance-bar { padding: 24px 18px; }
            .compare-card { padding: 22px 18px; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.7rem; }
            .hero-search .btn-search { padding: 0 18px; font-size: .85rem; }
            .hero-search .form-control { padding: 12px 16px; font-size: .9rem; }
            .hero-chip { padding: 5px 14px; font-size: .78rem; }
            .hero-cta-btn { padding: 12px 26px; font-size: .88rem; }
            .section-title { font-size: 1.3rem; }
            .feature-card { padding: 22px 18px; }
            .stat-card { padding: 20px 12px; }
            .stat-number { font-size: 1.8rem; }
            .bottom-cta-inner { flex-direction: column; gap: 10px; text-align: center; }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}