/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1b2d44;
            --color-secondary: #e63946;
            --color-secondary-hover: #c5303c;
            --color-accent: #f4a261;
            --color-accent-light: #f9c78a;
            --color-bg: #f4f6f9;
            --color-bg-alt: #ffffff;
            --color-bg-dark: #0a1420;
            --color-text: #1a1a2e;
            --color-text-light: #5a6a7a;
            --color-text-muted: #8a9aa8;
            --color-border: #e2e6ed;
            --color-card-bg: #ffffff;
            --color-nav-bg: rgba(13, 27, 42, 0.97);
            --color-footer-bg: #0a1420;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-xl: 0 24px 64px rgba(0,0,0,0.18);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --spacing-section: 5rem;
            --spacing-block: 2.5rem;
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
        }
        a { color: var(--color-secondary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--color-secondary-hover); }
        a:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--color-primary); font-weight: 700; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (max-width: 520px) {
            .container { padding: 0 1rem; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--color-nav-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-logo i { color: var(--color-secondary); font-size: 1.5rem; }
        .site-logo span { background: linear-gradient(135deg, #ffffff 60%, var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .site-logo:hover { opacity: 0.9; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-list a {
            color: rgba(255,255,255,0.75);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-list a:hover { color: #fff; background: rgba(255,255,255,0.08); }
        .nav-list a.active { color: #fff; background: rgba(230,57,70,0.2); }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-secondary);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.08);
            border-radius: 40px;
            padding: 0 1rem;
            border: 1px solid rgba(255,255,255,0.06);
            transition: all var(--transition);
        }
        .nav-search:focus-within { background: rgba(255,255,255,0.14); border-color: var(--color-secondary); }
        .nav-search i { color: rgba(255,255,255,0.4); font-size: 0.85rem; }
        .nav-search input {
            background: transparent;
            border: none;
            color: #fff;
            padding: 0.45rem 0.5rem;
            font-size: 0.85rem;
            width: 140px;
            outline: none;
        }
        .nav-search input::placeholder { color: rgba(255,255,255,0.35); }
        .btn-ghost-light {
            color: rgba(255,255,255,0.85);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.45rem 1.1rem;
            border-radius: 40px;
            border: 1px solid rgba(255,255,255,0.15);
            transition: all var(--transition);
        }
        .btn-ghost-light:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.3); }
        .btn-primary-nav {
            background: var(--color-secondary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.45rem 1.3rem;
            border-radius: 40px;
            transition: all var(--transition);
            letter-spacing: 0.01em;
        }
        .btn-primary-nav:hover { background: var(--color-secondary-hover); color: #fff; transform: scale(1.03); }
        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 1.4rem;
            padding: 0.25rem;
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-search { display: none; }
            .btn-ghost-light { display: none; }
            .btn-primary-nav { display: none; }
            .nav-toggle { display: block; }
            .site-header .container { height: 60px; }
            .site-logo { font-size: 1.15rem; }
        }
        @media (max-width: 520px) {
            .site-header .container { padding: 0 1rem; }
        }

        /* ===== Mobile Drawer ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            width: 100%;
            background: var(--color-primary);
            padding: 1.5rem;
            z-index: 999;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: var(--shadow-lg);
        }
        .mobile-drawer.open { display: block; }
        .mobile-drawer a {
            display: block;
            color: rgba(255,255,255,0.8);
            padding: 0.75rem 0;
            font-size: 1.05rem;
            font-weight: 500;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .mobile-drawer a:last-child { border-bottom: none; }
        .mobile-drawer a:hover { color: #fff; }
        .mobile-drawer a.active { color: var(--color-secondary); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 8rem 1.5rem 5rem;
            background: var(--color-primary) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(145deg, rgba(13,27,42,0.88) 30%, rgba(13,27,42,0.55) 80%);
            z-index: 1;
        }
        .hero-content { position: relative; z-index: 2; max-width: 820px; }
        .hero-badge {
            display: inline-block;
            background: rgba(230,57,70,0.2);
            color: var(--color-secondary);
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            border: 1px solid rgba(230,57,70,0.25);
            margin-bottom: 1.5rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
        }
        .hero h1 span { color: var(--color-secondary); }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.75);
            max-width: 640px;
            margin: 0 auto 2.2rem;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        .btn-primary {
            background: var(--color-secondary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 0.9rem 2.4rem;
            border-radius: 50px;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(230,57,70,0.35);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover { background: var(--color-secondary-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 32px rgba(230,57,70,0.4); }
        .btn-outline-light {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.85rem 2.2rem;
            border-radius: 50px;
            border: 2px solid rgba(255,255,255,0.25);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.5); color: #fff; }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            justify-content: center;
            margin-top: 3rem;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item { text-align: center; }
        .hero-stats .stat-num { font-size: 2rem; font-weight: 800; color: #fff; line-height: 1.2; }
        .hero-stats .stat-num small { font-size: 1rem; font-weight: 400; color: rgba(255,255,255,0.5); }
        .hero-stats .stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.5); letter-spacing: 0.03em; margin-top: 0.2rem; }

        @media (max-width: 768px) {
            .hero { min-height: 70vh; padding: 6rem 1rem 3rem; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 1.5rem; }
            .hero-stats .stat-num { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn-primary, .btn-outline-light { width: 100%; max-width: 280px; justify-content: center; }
        }

        /* ===== Section共用 ===== */
        .section { padding: var(--spacing-section) 0; }
        .section-alt { background: var(--color-bg-alt); }
        .section-dark { background: var(--color-bg-dark); color: rgba(255,255,255,0.8); }
        .section-dark h2, .section-dark h3 { color: #fff; }
        .section-header { text-align: center; margin-bottom: 3.5rem; }
        .section-header h2 { font-size: 2.2rem; font-weight: 800; color: var(--color-primary); letter-spacing: -0.01em; }
        .section-dark .section-header h2 { color: #fff; }
        .section-header p { color: var(--color-text-light); max-width: 600px; margin: 0.6rem auto 0; font-size: 1.05rem; }
        .section-header .badge {
            display: inline-block;
            background: rgba(230,57,70,0.08);
            color: var(--color-secondary);
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 0.75rem;
        }
        @media (max-width: 768px) {
            .section { padding: 3rem 0; }
            .section-header h2 { font-size: 1.7rem; }
            .section-header { margin-bottom: 2.5rem; }
        }

        /* ===== Feature Cards ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .feature-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
        .feature-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.4rem;
            color: #fff;
        }
        .feature-card .icon.c1 { background: linear-gradient(135deg, #e63946, #f4a261); }
        .feature-card .icon.c2 { background: linear-gradient(135deg, #1d3557, #457b9d); }
        .feature-card .icon.c3 { background: linear-gradient(135deg, #2a9d8f, #264653); }
        .feature-card .icon.c4 { background: linear-gradient(135deg, #e76f51, #f4a261); }
        .feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; }
        .feature-card p { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.6; }

        @media (max-width: 1024px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .features-grid { grid-template-columns: 1fr; } }

        /* ===== Category Cards ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--color-card-bg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .category-card img { width: 100%; height: 200px; object-fit: cover; }
        .category-card .body { padding: 1.25rem 1.5rem 1.5rem; }
        .category-card .body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.3rem; }
        .category-card .body p { font-size: 0.88rem; color: var(--color-text-light); margin-bottom: 0.75rem; }
        .category-card .body .tag {
            display: inline-block;
            background: rgba(230,57,70,0.07);
            color: var(--color-secondary);
            padding: 0.15rem 0.7rem;
            border-radius: 40px;
            font-size: 0.72rem;
            font-weight: 600;
        }

        @media (max-width: 1024px) { .category-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .category-grid { grid-template-columns: 1fr; } }

        /* ===== Post Cards (CMS列表) ===== */
        .post-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .post-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .post-card .thumb { width: 100%; height: 180px; object-fit: cover; background: var(--color-primary-light); }
        .post-card .meta { padding: 1.25rem 1.5rem 1.5rem; }
        .post-card .meta .cat-tag {
            display: inline-block;
            background: rgba(230,57,70,0.07);
            color: var(--color-secondary);
            padding: 0.15rem 0.7rem;
            border-radius: 40px;
            font-size: 0.7rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .post-card .meta h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; line-height: 1.4; }
        .post-card .meta h3 a { color: var(--color-primary); }
        .post-card .meta h3 a:hover { color: var(--color-secondary); }
        .post-card .meta p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.6; }
        .post-card .meta .date { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 0.6rem; display: block; }

        @media (max-width: 1024px) { .post-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .post-grid { grid-template-columns: 1fr; } }

        /* ===== Stats / Data Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.06);
            transition: all var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.07); }
        .stat-card .num { font-size: 2.6rem; font-weight: 800; color: #fff; line-height: 1.2; }
        .stat-card .num span { color: var(--color-secondary); }
        .stat-card .label { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 0.3rem; letter-spacing: 0.02em; }

        @media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

        /* ===== Flow / Steps ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            counter-reset: step;
        }
        .flow-step {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            position: relative;
        }
        .flow-step .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            margin: 0 auto 1rem;
        }
        .flow-step h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; }
        .flow-step p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.6; }
        .flow-step .arrow {
            position: absolute;
            right: -1rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.2rem;
            color: var(--color-text-muted);
        }
        .flow-step:last-child .arrow { display: none; }

        @media (max-width: 1024px) { .flow-grid { grid-template-columns: repeat(2, 1fr); } .flow-step .arrow { display: none; } }
        @media (max-width: 520px) { .flow-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            margin-bottom: 0.75rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-item .question {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        .faq-item .question i { color: var(--color-secondary); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-item .answer {
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-top: 0.75rem;
            border-top: 1px solid var(--color-border);
            padding-top: 0.75rem;
            display: none;
        }
        .faq-item.open .answer { display: block; }
        .faq-item.open .question i { transform: rotate(180deg); }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(145deg, var(--color-primary), #162a3e);
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 0.8rem; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 2rem; font-size: 1.05rem; }
        .cta-section .btn-primary { font-size: 1.05rem; padding: 1rem 2.8rem; }

        @media (max-width: 768px) {
            .cta-section h2 { font-size: 1.7rem; }
            .cta-section { padding: 3rem 0; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: rgba(255,255,255,0.6);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand h3 { font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 0.5rem; }
        .footer-brand h3 i { color: var(--color-secondary); margin-right: 0.3rem; }
        .footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { font-size: 0.9rem; font-weight: 700; color: #fff; margin-bottom: 1rem; letter-spacing: 0.02em; }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            padding: 0.3rem 0;
            transition: all var(--transition);
        }
        .footer-col a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: #fff; }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .gap-1 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 2.5rem 1.5rem;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            background: rgba(0,0,0,0.02);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }
        .empty-state i { font-size: 2rem; color: var(--color-text-muted); margin-bottom: 0.75rem; display: block; }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-dark: #0d1b2a;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #f8f9fa;
            --border: #e0e0e0;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-hover: 0 20px 60px rgba(230,57,70,0.15);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
        }

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

        html { scroll-behavior: smooth; }

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

        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }

        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Site Header ===== */
        .site-header {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.3px;
        }
        .site-logo i { color: var(--primary); font-size: 1.5rem; }
        .site-logo span { background: linear-gradient(135deg, var(--secondary), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .site-logo:hover { opacity: 0.85; }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { background: rgba(230,57,70,0.06); color: var(--primary); }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230,57,70,0.3);
        }
        .nav-list a.active:hover { background: var(--primary-dark); color: #fff; }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 16px;
            height: 40px;
            gap: 8px;
            transition: var(--transition);
        }
        .nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230,57,70,0.1); }
        .nav-search i { color: var(--text-light); font-size: 0.9rem; }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--text);
            width: 140px;
            font-family: var(--font);
        }
        .nav-search input::placeholder { color: var(--text-light); }

        .btn-ghost-light {
            background: transparent;
            border: 1px solid var(--border);
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-ghost-light:hover { border-color: var(--primary); color: var(--primary); background: rgba(230,57,70,0.04); }

        .btn-primary-nav {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
            box-shadow: 0 4px 16px rgba(230,57,70,0.25);
        }
        .btn-primary-nav:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(230,57,70,0.35); }

        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 4px; }

        /* ===== Mobile Nav ===== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.4);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s;
        }
        .mobile-nav-overlay.open { display: block; opacity: 1; }

        .mobile-nav-panel {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--bg-alt);
            padding: 24px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            z-index: 1000;
            transform: translateY(-110%);
            transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
            max-height: calc(100vh - 72px);
            overflow-y: auto;
        }
        .mobile-nav-panel.open { transform: translateY(0); }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .mobile-nav-panel a:hover { background: rgba(230,57,70,0.06); color: var(--primary); border-left-color: var(--primary); }
        .mobile-nav-panel a.active { background: rgba(230,57,70,0.08); color: var(--primary); border-left-color: var(--primary); font-weight: 600; }
        .mobile-nav-panel .mobile-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 18px;
            height: 46px;
            gap: 10px;
            margin-bottom: 16px;
        }
        .mobile-nav-panel .mobile-search i { color: var(--text-light); }
        .mobile-nav-panel .mobile-search input { border: none; background: transparent; outline: none; font-size: 1rem; color: var(--text); width: 100%; font-family: var(--font); }

        /* ===== Hero Banner (article) ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--secondary) 0%, #0d1b2a 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 50%, rgba(230,57,70,0.15), transparent 60%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 20px;
        }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb i { font-size: 0.7rem; }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            max-width: 800px;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            margin-top: 8px;
        }
        .article-hero .meta span { display: flex; align-items: center; gap: 6px; }
        .article-hero .meta i { color: var(--primary-light); }
        .article-hero .meta .category-tag {
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-content {
            background: var(--bg-alt);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 48px 56px;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-content .featured-image {
            width: 100%;
            border-radius: var(--radius-sm);
            margin-bottom: 32px;
            max-height: 480px;
            object-fit: cover;
        }
        .article-content .body-text {
            font-size: 1.1rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content .body-text p {
            margin-bottom: 1.4em;
        }
        .article-content .body-text h2, .article-content .body-text h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--secondary);
        }
        .article-content .body-text h2 { font-size: 1.6rem; }
        .article-content .body-text h3 { font-size: 1.25rem; }
        .article-content .body-text ul, .article-content .body-text ol {
            margin: 1em 0;
            padding-left: 1.6em;
        }
        .article-content .body-text ul li { list-style: disc; margin-bottom: 0.4em; }
        .article-content .body-text ol li { list-style: decimal; margin-bottom: 0.4em; }
        .article-content .body-text a { color: var(--primary); text-decoration: underline; }
        .article-content .body-text a:hover { color: var(--primary-dark); }
        .article-content .body-text blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.6em 0;
            background: rgba(230,57,70,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }
        .article-content .body-text img { border-radius: var(--radius-sm); margin: 1.2em 0; }

        .article-footer-meta {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .article-footer-meta .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-footer-meta .tags a {
            background: var(--bg);
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--text-light);
            border: 1px solid var(--border);
        }
        .article-footer-meta .tags a:hover { border-color: var(--primary); color: var(--primary); }
        .article-footer-meta .share-btns {
            display: flex;
            gap: 10px;
        }
        .article-footer-meta .share-btns a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-footer-meta .share-btns a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        .article-not-found {
            text-align: center;
            padding: 80px 24px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-light); margin-bottom: 24px; display: block; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--secondary); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-light); margin-bottom: 24px; }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

        /* ===== Related / CTA ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 32px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .related-card img { width: 100%; height: 180px; object-fit: cover; }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
        .related-card .card-body h3 a { color: var(--text); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-size: 0.8rem; color: var(--text-light); }

        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--secondary), #0d1b2a);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2.2rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .cta-section p { font-size: 1.15rem; color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn-cta {
            background: var(--primary);
            color: #fff;
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font);
            box-shadow: 0 8px 32px rgba(230,57,70,0.3);
        }
        .cta-section .btn-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 40px rgba(230,57,70,0.4); }
        .cta-section .btn-cta i { transition: transform 0.3s; }
        .cta-section .btn-cta:hover i { transform: translateX(4px); }

        /* ===== Site Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand h3 i { color: var(--primary); }
        .footer-brand p { font-size: 0.95rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.92rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-list { display: none; }
            .nav-toggle { display: block; }
            .nav-search { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .article-content { padding: 36px 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .site-header .container { height: 64px; }
            .btn-ghost-light, .btn-primary-nav { display: none; }
            .article-hero { padding: 60px 0 40px; min-height: 240px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero .meta { gap: 12px; font-size: 0.85rem; }
            .article-content { padding: 28px 20px; border-radius: var(--radius-sm); }
            .article-content .body-text { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.6rem; }
            .article-footer-meta { flex-direction: column; align-items: flex-start; }
            .article-hero h1 { font-size: 1.6rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .site-logo { font-size: 1.1rem; }
            .site-logo i { font-size: 1.2rem; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-content { padding: 20px 14px; }
            .article-content .body-text { font-size: 0.95rem; }
            .related-card img { height: 140px; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-section p { font-size: 0.95rem; }
            .cta-section .btn-cta { padding: 14px 28px; font-size: 1rem; }
        }

        @media (min-width: 1025px) {
            .mobile-nav-panel, .mobile-nav-overlay { display: none !important; }
        }

/* roulang page: category1 */
/* ========== :root 设计变量 ========== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2b4d7a;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #0f1a2e;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2d3748;
            --text-light: #6b7a8f;
            --text-white: #f1f5f9;
            --border-light: #e2e8f0;
            --border-card: #e9ecef;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 16px;
            padding-top: var(--header-h);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ========== Container ========== */
        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== Site Header (SaaS 命令栏风格) ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px) saturate(180%);
            -webkit-backdrop-filter: blur(14px) saturate(180%);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.97);
        }
        .site-header>.container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .site-logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .site-logo:hover {
            color: var(--secondary);
            opacity: 0.9;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1 1 auto;
            justify-content: center;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: background var(--transition), color var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }
        .nav-list a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            border-radius: 40px;
            padding: 0 14px;
            height: 40px;
            transition: border var(--transition), box-shadow var(--transition);
            max-width: 200px;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }
        .nav-search i {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-right: 8px;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            width: 120px;
            color: var(--text-dark);
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .btn-ghost-light {
            background: transparent;
            border: none;
            padding: 8px 14px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-body);
            cursor: pointer;
            transition: background var(--transition), color var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .btn-ghost-light:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .btn-primary-nav {
            background: var(--primary);
            border: none;
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            color: #fff;
            cursor: pointer;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.25);
            white-space: nowrap;
        }
        .btn-primary-nav:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary-nav:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px 6px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-light);
        }
        @media (max-width: 868px) {
            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                padding: 18px 24px 28px;
                gap: 6px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s ease, opacity 0.3s ease;
                border-bottom: 1px solid var(--border-light);
                z-index: 999;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 1.05rem;
            }
            .nav-search {
                max-width: 140px;
            }
            .nav-search input {
                width: 80px;
            }
            .btn-ghost-light {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
        }
        @media (max-width: 520px) {
            .btn-primary-nav {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .site-logo span {
                font-size: 1rem;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
            .nav-search {
                max-width: 100px;
            }
            .nav-search input {
                width: 50px;
            }
        }

        /* ========== Mobile Drawer Overlay ========== */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.25);
            z-index: 998;
            backdrop-filter: blur(2px);
        }
        .nav-overlay.active {
            display: block;
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            isolation: isolate;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.82) 0%, rgba(230, 57, 70, 0.55) 100%);
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 56px 0 48px;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: 72px 0;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-white {
            background: #fff;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.25;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-center {
            text-align: center;
        }
        .section-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
        }

        /* ========== Grid / Cards ========== */
        .card-grid {
            display: grid;
            gap: 28px;
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        @media (max-width: 1024px) {
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid.cols-2 {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .card-grid.cols-4,
            .card-grid.cols-3 {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Sport Card ========== */
        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .sport-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .sport-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-light);
        }
        .sport-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .sport-card:hover .card-img img {
            transform: scale(1.05);
        }
        .sport-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .sport-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .sport-card .card-body .card-meta {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sport-card .card-body .card-meta i {
            color: var(--primary);
        }
        .sport-card .card-body p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .sport-card .card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }
        .sport-card .card-body .card-tags span {
            background: var(--bg-light);
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-light);
            border: 1px solid var(--border-light);
        }
        .sport-card .card-body .btn-text {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
            transition: gap var(--transition);
        }
        .sport-card .card-body .btn-text i {
            transition: transform var(--transition);
        }
        .sport-card .card-body .btn-text:hover {
            gap: 12px;
            color: var(--primary-dark);
        }
        .sport-card .card-body .btn-text:hover i {
            transform: translateX(4px);
        }

        /* ========== Badge / Tag ========== */
        .badge-primary {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .badge-secondary {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .badge-accent {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .badge-outline {
            display: inline-block;
            background: transparent;
            color: var(--text-light);
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
        }

        /* ========== Stats / 数据块 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: background var(--transition), transform var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .stat-item .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -0.5px;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }
        .stat-item i {
            font-size: 1.8rem;
            color: var(--primary-light);
            margin-bottom: 10px;
            display: block;
        }
        @media (max-width: 868px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-item .stat-num {
                font-size: 1.6rem;
            }
        }

        /* ========== List / 赛事列表 ========== */
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .event-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .event-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .event-item .event-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .event-item .event-info {
            flex: 1;
        }
        .event-item .event-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 2px;
        }
        .event-item .event-info .event-detail {
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .event-item .event-info .event-detail span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .event-item .event-status {
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 40px;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            flex-shrink: 0;
        }
        .event-item .event-status.live {
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary-dark);
            animation: pulse-dot 1.8s infinite;
        }
        .event-item .event-status.upcoming {
            background: rgba(29, 53, 87, 0.1);
            color: var(--secondary);
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }
        @media (max-width: 640px) {
            .event-item {
                flex-wrap: wrap;
                padding: 12px 16px;
            }
            .event-item .event-status {
                margin-left: auto;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            background: #fff;
            transition: background var(--transition);
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }
        .faq-item .faq-q:hover {
            background: var(--bg-light);
        }
        .faq-item .faq-q i {
            font-size: 1.1rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-q[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-a.open {
            display: block;
        }
        @media (max-width: 640px) {
            .faq-item .faq-q {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-item .faq-a {
                padding: 0 16px 14px;
                font-size: 0.9rem;
            }
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 72px 0;
            background: var(--secondary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.88) 0%, rgba(230, 57, 70, 0.7) 100%);
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 580px;
            margin: 0 auto 28px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary-lg {
            background: var(--primary);
            border: none;
            padding: 14px 38px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            color: #fff;
            cursor: pointer;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-primary-lg:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.45);
            transform: translateY(-2px);
        }
        .btn-primary-lg:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 4px;
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.4);
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            color: #fff;
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .btn-primary-lg,
            .btn-outline-light {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-brand h3 i {
            color: var(--primary-light);
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0 28px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 12px;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }
        @media (max-width: 868px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
            .site-footer .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== Utility ========== */
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .text-center {
            text-align: center;
        }
        .text-primary {
            color: var(--primary);
        }
        .text-light {
            color: var(--text-light);
        }
        .fw-600 {
            font-weight: 600;
        }
        .fw-700 {
            font-weight: 700;
        }

        /* ========== Foundation 覆盖 ========== */
        .grid-container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x>.cell {
            padding: 0;
        }
        .grid-x {
            margin: 0;
        }

        /* ========== 响应式额外调优 ========== */
        @media (max-width: 640px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .sport-card .card-body {
                padding: 16px 16px 20px;
            }
            .sport-card .card-body h3 {
                font-size: 1.05rem;
            }
        }