/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #e94560;
            --color-primary-light: #ff6b81;
            --color-primary-dark: #c2304a;
            --color-secondary: #f5c518;
            --color-secondary-light: #ffd84d;
            --color-accent: #0f3460;
            --color-bg-dark: #0b0b1a;
            --color-bg-card: #161630;
            --color-bg-card-hover: #1e1e42;
            --color-bg-section: #12122a;
            --color-bg-footer: #08081a;
            --color-text: #f0f0f5;
            --color-text-muted: #9a9ab8;
            --color-text-dim: #6a6a8a;
            --color-border: rgba(233, 69, 96, 0.25);
            --color-border-light: rgba(255, 255, 255, 0.08);
            --color-success: #2ed573;
            --color-warning: #ffa502;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(233, 69, 96, 0.08);
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(233, 69, 96, 0.2);
            --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== 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-dark);
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }
        ::selection {
            background: var(--color-primary);
            color: #fff;
        }
        :focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(11, 11, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .logo:hover {
            opacity: 0.85;
            -webkit-text-fill-color: transparent;
        }
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(22, 22, 48, 0.7);
            border-radius: var(--radius-xl);
            padding: 4px 6px;
            border: 1px solid var(--color-border-light);
            backdrop-filter: blur(10px);
        }
        .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-lg);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .nav-item:hover {
            color: var(--color-text);
            background: rgba(233, 69, 96, 0.12);
        }
        .nav-item.active {
            color: #fff;
            background: var(--color-primary);
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.35);
        }
        .nav-item.active:hover {
            background: var(--color-primary-light);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 24px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--color-secondary), #e6a800);
            color: #1a1a2e;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 20px rgba(245, 197, 24, 0.25);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(245, 197, 24, 0.4);
            color: #1a1a2e;
        }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--color-text);
            padding: 4px 12px;
            background: rgba(22, 22, 48, 0.6);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            cursor: pointer;
        }

        /* ===== Hero Section ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(11, 11, 26, 0.92) 0%, rgba(15, 52, 96, 0.8) 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, transparent 0%, rgba(11, 11, 26, 0.7) 80%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: var(--radius-xl);
            background: rgba(233, 69, 96, 0.15);
            border: 1px solid rgba(233, 69, 96, 0.3);
            color: var(--color-primary-light);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #fff 30%, var(--color-secondary) 70%, var(--color-primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
        }
        .hero-sub {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--color-text-muted);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 8px 32px rgba(233, 69, 96, 0.3);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(233, 69, 96, 0.45);
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
            color: var(--color-text);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-secondary);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--color-text-dim);
            margin-top: 4px;
        }

        /* ===== Section Shared ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--color-bg-section);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: var(--radius-xl);
            background: rgba(233, 69, 96, 0.12);
            color: var(--color-primary-light);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(233, 69, 96, 0.15);
        }
        .section-header h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .section-header p {
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 12px auto 0;
            font-size: 1rem;
        }

        /* ===== Features Grid ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-soft);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover);
            background: var(--color-bg-card-hover);
        }
        .feature-card .icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: rgba(233, 69, 96, 0.12);
            color: var(--color-primary-light);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .feature-card:hover .icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ===== Events / Categories Grid ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .event-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-soft);
            cursor: pointer;
        }
        .event-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover);
        }
        .event-card .thumb {
            height: 180px;
            background: var(--color-bg-card);
            overflow: hidden;
            position: relative;
        }
        .event-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .event-card:hover .thumb img {
            transform: scale(1.08);
        }
        .event-card .overlay-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            background: rgba(233, 69, 96, 0.85);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }
        .event-card .body {
            padding: 20px 22px 24px;
        }
        .event-card .body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .event-card .body p {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .event-card .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-dim);
        }
        .event-card .meta i {
            margin-right: 4px;
        }
        .event-card .meta .badge {
            padding: 2px 12px;
            border-radius: var(--radius-sm);
            background: rgba(46, 213, 115, 0.15);
            color: var(--color-success);
            font-weight: 600;
            font-size: 0.75rem;
        }

        /* ===== Category Entry Cards ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .cat-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-soft);
            text-align: center;
            padding: 32px 20px;
        }
        .cat-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover);
            background: var(--color-bg-card-hover);
        }
        .cat-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 16px;
            background: rgba(245, 197, 24, 0.12);
            color: var(--color-secondary);
            transition: var(--transition);
        }
        .cat-card:hover .icon-wrap {
            background: var(--color-secondary);
            color: #1a1a2e;
            transform: scale(1.1);
        }
        .cat-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .cat-card p {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .cat-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary-light);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .cat-card .cat-link i {
            transition: var(--transition);
        }
        .cat-card:hover .cat-link i {
            transform: translateX(4px);
        }

        /* ===== News / CMS List ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .news-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-soft);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-5px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover);
        }
        .news-card .thumb {
            height: 180px;
            background: var(--color-bg-card);
            overflow: hidden;
        }
        .news-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .thumb img {
            transform: scale(1.06);
        }
        .news-card .body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .body .cat-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: var(--radius-sm);
            background: rgba(233, 69, 96, 0.12);
            color: var(--color-primary-light);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .news-card .body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card .body h3 a {
            color: var(--color-text);
        }
        .news-card .body h3 a:hover {
            color: var(--color-primary-light);
        }
        .news-card .body p {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }
        .news-card .body .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-dim);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
            margin-top: auto;
        }
        .news-card .body .meta span i {
            margin-right: 4px;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            color: var(--color-text-muted);
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border-light);
        }
        .news-empty i {
            font-size: 2rem;
            margin-bottom: 12px;
            display: block;
            opacity: 0.4;
        }

        /* ===== Stats / Data Section ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-block {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-soft);
        }
        .stat-block:hover {
            transform: translateY(-4px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-block .num {
            font-size: 2.4rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--color-secondary), var(--color-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-block .label {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== Process / Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-soft);
            position: relative;
            counter-increment: step;
        }
        .step-card:hover {
            transform: translateY(-5px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            margin: 0 auto 16px;
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(233, 69, 96, 0.3);
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-card p {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--color-primary-light);
        }
        .faq-question i {
            color: var(--color-primary);
            transition: var(--transition);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-accent) 0%, #0b0b1a 100%);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 72px 24px;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
        }
        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 44px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-bg-footer);
            border-top: 1px solid var(--color-border-light);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col .brand {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-col p {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border-light);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-dim);
        }
        .footer-bottom a {
            color: var(--color-text-dim);
        }
        .footer-bottom a:hover {
            color: var(--color-primary-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text-muted);
            font-size: 0.95rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .footer-social a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero {
                min-height: 70vh;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-panel {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 12px;
                right: 12px;
                flex-direction: column;
                background: rgba(11, 11, 26, 0.98);
                backdrop-filter: blur(24px);
                border-radius: var(--radius-md);
                padding: 12px;
                border: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-card);
                gap: 4px;
            }
            .nav-panel.open {
                display: flex;
            }
            .nav-item {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 4px;
                padding: 12px 18px;
            }
            .nav-toggle {
                display: block;
            }
            .hero {
                min-height: 60vh;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .num {
                font-size: 1.5rem;
            }
            .section {
                padding: 48px 0;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .events-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .cta-section .container {
                padding: 48px 16px;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1923;
            --primary-light: #1a2c3a;
            --primary-dark: #0a1118;
            --accent: #f0b90b;
            --accent-hover: #d4a309;
            --accent-glow: rgba(240, 185, 11, 0.25);
            --surface: #ffffff;
            --surface-alt: #f5f7fa;
            --surface-dark: #131e2b;
            --text: #1a2332;
            --text-light: #5a6a7e;
            --text-inverse: #ffffff;
            --text-muted: #8a9aa8;
            --border: #e2e8f0;
            --border-light: rgba(255, 255, 255, 0.10);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --shadow-glow: 0 0 40px rgba(240, 185, 11, 0.15);
            --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--surface);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font: inherit;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.6rem);
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(15, 25, 35, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-inverse);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .logo::before {
            content: '';
            display: inline-block;
            width: 32px;
            height: 32px;
            background: var(--accent);
            border-radius: 8px;
            flex-shrink: 0;
        }
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-panel .nav-item {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.70);
            font-size: 0.92rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-panel .nav-item i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .nav-panel .nav-item:hover {
            color: var(--text-inverse);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-panel .nav-item.active {
            color: var(--accent);
            background: rgba(240, 185, 11, 0.12);
        }
        .nav-panel .nav-item.active i {
            opacity: 1;
            color: var(--accent);
        }
        .nav-cta {
            padding: 9px 24px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            margin-left: 12px;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-glow);
        }
        .nav-cta i {
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-inverse);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== Hero Banner ===== */
        .category-hero {
            padding: 140px 0 80px;
            position: relative;
            background: var(--primary-dark);
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.30;
            transform: scale(1.02);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 25, 35, 0.94) 0%, rgba(15, 25, 35, 0.60) 60%, rgba(15, 25, 35, 0.30) 100%);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .category-hero h1 {
            color: var(--text-inverse);
            max-width: 720px;
            margin-bottom: 16px;
            font-weight: 800;
        }
        .category-hero p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.15rem;
            max-width: 620px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 8px;
        }
        .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .hero-stats .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 2px;
        }

        /* ===== Section通用 ===== */
        section {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            margin-bottom: 12px;
        }
        .section-title p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-light);
            font-size: 1.05rem;
        }

        /* ===== 赛事卡片 ===== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 28px;
        }
        .event-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .event-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--surface-alt);
        }
        .event-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-tag {
            display: inline-block;
            background: rgba(240, 185, 11, 0.12);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .event-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .event-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 16px;
            flex: 1;
        }
        .event-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .event-card .card-meta .live {
            color: #e74c3c;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .event-card .card-meta .live i {
            font-size: 0.6rem;
            animation: pulse-dot 1.4s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.3;
                transform: scale(0.8);
            }
        }
        .event-card .card-meta .odds {
            font-weight: 700;
            color: var(--accent);
        }

        /* ===== 特色板块 ===== */
        .section-dark {
            background: var(--primary-dark);
            color: var(--text-inverse);
        }
        .section-dark .section-title h2 {
            color: var(--text-inverse);
        }
        .section-dark .section-title p {
            color: rgba(255, 255, 255, 0.60);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 32px 28px;
            text-align: center;
            transition: var(--transition);
        }
        .feature-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
            border-color: rgba(240, 185, 11, 0.25);
        }
        .feature-card .icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }
        .feature-card h3 {
            color: var(--text-inverse);
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .feature-card p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--surface-alt);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 32px;
            text-align: center;
        }
        .stats-grid .stat-box .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stats-grid .stat-box .num .suffix {
            color: var(--accent);
        }
        .stats-grid .stat-box .label {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* ===== 参与流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 28px 20px;
            position: relative;
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .step-card:hover::before {
            transform: scale(1.08);
            box-shadow: var(--shadow-glow);
        }
        .step-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 185, 11, 0.25);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            user-select: none;
            list-style: none;
            color: var(--text);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::before {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::before {
            transform: rotate(180deg);
        }
        .faq-item .faq-body {
            padding: 0 24px 20px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            text-align: center;
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: var(--text-inverse);
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.70);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-light);
        }
        .footer-col .brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-inverse);
            display: block;
            margin-bottom: 12px;
        }
        .footer-col p {
            font-size: 0.90rem;
            color: rgba(255, 255, 255, 0.50);
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.90rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.50);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-col:first-child {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .nav-panel {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(15, 25, 35, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-light);
                gap: 4px;
            }
            .nav-panel.open {
                display: flex;
            }
            .nav-panel .nav-item {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 8px;
                padding: 12px;
            }
            .nav-toggle {
                display: block;
            }
            .category-hero {
                min-height: 320px;
                padding: 120px 0 60px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stats .stat-num {
                font-size: 1.6rem;
            }
            section {
                padding: 56px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .event-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 16px;
                flex-direction: column;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stats-grid .stat-box .num {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .event-card .card-body {
                padding: 16px 18px 18px;
            }
            .cta-btn {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a56db;
            --primary-dark: #1340a0;
            --primary-light: #3b82f6;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --accent: #ef4444;
            --bg: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-soft: #f1f5f9;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #f1f5f9;
            --border: #e2e8f0;
            --radius: 0.75rem;
            --radius-sm: 0.5rem;
            --radius-lg: 1rem;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.10);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

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

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

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        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: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: var(--shadow);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .logo i {
            font-size: 1.3rem;
            color: var(--secondary);
        }

        .nav-panel {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
        }
        .nav-panel .nav-item {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-light);
            transition: background var(--transition), color var(--transition);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            white-space: nowrap;
        }
        .nav-panel .nav-item i {
            font-size: 0.85rem;
            color: var(--text-light);
            transition: color var(--transition);
        }
        .nav-panel .nav-item:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }
        .nav-panel .nav-item:hover i {
            color: var(--primary);
        }
        .nav-panel .nav-item.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-panel .nav-item.active i {
            color: #fff;
        }

        .nav-cta {
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            margin-left: 0.75rem;
            white-space: nowrap;
        }
        .nav-cta i {
            color: #fff;
        }
        .nav-cta:hover {
            background: var(--secondary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--border);
        }

        @media (max-width: 920px) {
            .nav-panel {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1rem 1.5rem 1.5rem;
                gap: 0.4rem;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s;
                align-items: stretch;
            }
            .nav-panel.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-panel .nav-item {
                padding: 0.7rem 1rem;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-panel .nav-cta {
                margin-left: 0;
                margin-top: 0.5rem;
                justify-content: center;
                padding: 0.7rem 1rem;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.25rem;
            }
            .logo i {
                font-size: 1.1rem;
            }
            .nav-panel {
                padding: 0.75rem 1rem 1.25rem;
            }
            .nav-panel .nav-item {
                font-size: 0.9rem;
                padding: 0.6rem 0.85rem;
            }
            .nav-panel .nav-cta {
                font-size: 0.85rem;
                padding: 0.6rem 0.85rem;
            }
        }

        .page-banner {
            margin-top: var(--header-h);
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(30, 58, 138, 0.78)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 4rem 0 3rem;
            text-align: center;
            position: relative;
            min-height: 200px;
            display: flex;
            align-items: center;
        }
        .page-banner .banner-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1.25;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }
        .page-banner .banner-sub {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            margin-top: 0.5rem;
        }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            flex-wrap: wrap;
            margin-top: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 3rem 0 2rem;
                min-height: 160px;
            }
            .page-banner .banner-title {
                font-size: 1.6rem;
            }
            .page-banner .banner-sub {
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner .banner-title {
                font-size: 1.3rem;
            }
            .page-banner .breadcrumb {
                font-size: 0.78rem;
            }
        }

        .article-section {
            padding: 2.5rem 0 1.5rem;
        }
        .article-wrapper {
            max-width: 820px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 2.5rem 3rem;
            border: 1px solid var(--border);
        }
        .article-head {
            margin-bottom: 1.75rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border);
        }
        .article-head h1 {
            font-size: 1.9rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.75rem 1.5rem;
            font-size: 0.88rem;
            color: var(--text-light);
        }
        .article-meta .meta-cat {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            background: var(--primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .article-meta .meta-date i {
            margin-right: 0.3rem;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 1.25rem;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 1.5rem auto;
            box-shadow: var(--shadow);
        }
        .article-body h2,
        .article-body h3 {
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            font-weight: 700;
            color: var(--text);
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.25rem;
            padding-left: 1.5rem;
        }
        .article-body li {
            margin-bottom: 0.4rem;
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary-light);
            background: var(--bg-soft);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }

        .article-notfound {
            text-align: center;
            padding: 3rem 1rem;
        }
        .article-notfound h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 0.75rem;
        }
        .article-notfound p {
            color: var(--text-light);
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }
        .article-notfound .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 2rem;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
        }
        .article-notfound .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 768px) {
            .article-wrapper {
                padding: 1.5rem 1.5rem;
            }
            .article-head h1 {
                font-size: 1.4rem;
            }
            .article-body {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .article-wrapper {
                padding: 1.25rem 1rem;
                border-radius: var(--radius);
            }
            .article-head h1 {
                font-size: 1.2rem;
            }
            .article-meta {
                font-size: 0.82rem;
                gap: 0.5rem 1rem;
            }
            .article-body {
                font-size: 0.95rem;
            }
        }

        .related-section {
            padding: 2rem 0 3rem;
        }
        .related-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        .related-section .section-sub {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .related-card .card-body {
            padding: 1rem 1.25rem 1.25rem;
        }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            line-height: 1.4;
            color: var(--text);
        }
        .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: 0.85rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0.6rem;
            font-size: 0.78rem;
            color: var(--text-light);
        }
        .related-card .card-meta .cat-tag {
            padding: 0.15rem 0.6rem;
            border-radius: 12px;
            background: var(--bg-soft);
            color: var(--primary);
            font-weight: 500;
        }

        @media (max-width: 920px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-section .section-title {
                font-size: 1.25rem;
            }
        }

        .cta-section {
            padding: 3.5rem 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            background-blend-mode: overlay;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 580px;
            margin: 0 auto 1.75rem;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .cta-section .cta-btn:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .cta-btn {
                padding: 0.7rem 2rem;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .cta-section {
                padding: 2.5rem 0;
            }
            .cta-section h2 {
                font-size: 1.25rem;
            }
        }

        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-col .brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 0.75rem;
        }
        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-social {
            display: flex;
            gap: 0.75rem;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 2.2rem;
            height: 2.2rem;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 920px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .footer-col:first-child {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        .related-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 2rem 1rem;
            color: var(--text-light);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --primary-gradient: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #ffb703;
            --accent-dark: #fb8500;
            --bg-dark: #0d1b2a;
            --bg-darker: #070f1a;
            --bg-card: #1b2a3f;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --text-primary: #ffffff;
            --text-secondary: #e0e0e0;
            --text-muted: #8899aa;
            --text-dark: #1a1a2e;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --border-radius-xs: 6px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(230, 57, 70, 0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-section: 100px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 标题层级 ===== */
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header .section-subtitle {
            margin: 0 auto;
        }

        .text-gradient {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.5);
            border-color: var(--primary-light);
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(230, 57, 70, 0.12);
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.875rem;
        }

        .btn-lg {
            padding: 18px 42px;
            font-size: 1.1rem;
        }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(230, 57, 70, 0.18);
            color: var(--primary-light);
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .badge-accent {
            background: rgba(255, 183, 3, 0.18);
            color: var(--accent);
        }
        .badge-green {
            background: rgba(46, 204, 113, 0.18);
            color: #2ecc71;
        }
        .badge-blue {
            background: rgba(69, 123, 157, 0.2);
            color: #a8dadc;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1000;
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.03em;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            flex-shrink: 0;
        }
        .logo:hover {
            opacity: 0.85;
        }

        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 6px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
        }

        .nav-panel .nav-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 40px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-panel .nav-item i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .nav-panel .nav-item:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
        }
        .nav-panel .nav-item.active {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .nav-panel .nav-item.active i {
            opacity: 1;
        }
        .nav-panel .nav-item:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--primary-gradient);
            border-radius: 40px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.5);
        }
        .nav-cta i {
            font-size: 0.85rem;
        }

        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px 12px;
            border-radius: var(--border-radius-xs);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary-light);
        }

        /* ===== 页面横幅 Banner ===== */
        .page-banner {
            margin-top: var(--header-height);
            padding: 120px 0 80px;
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2a3f 50%, #0d1b2a 100%);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(13, 27, 42, 0.9) 0%, rgba(13, 27, 42, 0.6) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner .badge {
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            color: var(--text-primary);
        }
        .page-banner p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 28px;
        }
        .page-banner .banner-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 板块 ===== */
        .section-block {
            padding: var(--spacing-section) 0;
        }

        .section-block.alt-bg {
            background: var(--bg-darker);
        }

        .section-block.divider-top {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(230, 57, 70, 0.2);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--bg-darker);
        }

        .card-body {
            padding: 24px 26px 28px;
        }

        .card-body .badge {
            margin-bottom: 10px;
        }

        .card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card-body h3 a {
            color: inherit;
        }
        .card-body h3 a:hover {
            color: var(--primary-light);
        }

        .card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card-meta i {
            font-size: 0.75rem;
            opacity: 0.7;
        }

        /* ===== 图文区块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .feature-image {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .feature-content .badge {
            margin-bottom: 12px;
        }
        .feature-content h2 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .feature-content p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 24px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .feature-list li i {
            color: var(--primary);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: rgba(230, 57, 70, 0.15);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .stat-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
            opacity: 0.6;
        }

        /* ===== 分类入口卡片（小卡片） ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cat-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
            cursor: pointer;
        }
        .cat-card:hover {
            transform: translateY(-6px);
            border-color: rgba(230, 57, 70, 0.25);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }
        .cat-card .cat-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .cat-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .cat-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--border-radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.15);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            background: var(--primary-gradient);
            border-radius: var(--border-radius);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-block .btn {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }
        .cta-block .btn:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-darker);
            padding: 64px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-col .brand {
            font-size: 1.5rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-col p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .feature-image {
                order: -1;
            }
            .page-banner h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 60px;
                --header-height: 64px;
            }

            .nav-panel {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 16px;
                right: 16px;
                background: rgba(13, 27, 42, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px;
                border-radius: var(--border-radius-sm);
                border: 1px solid rgba(255, 255, 255, 0.1);
                box-shadow: var(--shadow-lg);
                gap: 8px;
            }
            .nav-panel.open {
                display: flex;
            }
            .nav-panel .nav-item {
                width: 100%;
                justify-content: flex-start;
                padding: 12px 18px;
            }
            .nav-panel .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: block;
            }

            .page-banner {
                padding: 80px 0 56px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }

            .card-grid {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-number {
                font-size: 2rem;
            }

            .section-title {
                font-size: 1.8rem;
            }
            .section-header {
                margin-bottom: 36px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.8rem;
            }

            .feature-grid {
                gap: 28px;
            }
            .feature-content h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-actions {
                flex-direction: column;
                align-items: center;
            }
            .card-body {
                padding: 18px 18px 22px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-48 {
            margin-top: 48px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --accent-light: #f8c291;
            --bg-dark: #0f1a2e;
            --bg-mid: #16233c;
            --bg-light: #f0f4f8;
            --bg-card: #ffffff;
            --bg-card-dark: #1e2d47;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #ffffff;
            --text-muted: #8a8aaa;
            --border-color: #e2e8f0;
            --border-dark: #2a3f5f;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --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-glow: 0 0 30px rgba(230, 57, 70, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-section: 5rem;
            --spacing-block: 2.5rem;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 26, 46, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            flex-shrink: 0;
        }
        .logo:hover {
            opacity: 0.85;
        }
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-panel .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.1rem;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .nav-panel .nav-item i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .nav-panel .nav-item:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-panel .nav-item.active {
            color: var(--text-light);
            background: rgba(230, 57, 70, 0.25);
            box-shadow: inset 0 0 0 1px rgba(230, 57, 70, 0.3);
        }
        .nav-panel .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-light);
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
            margin-left: 0.5rem;
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.45);
            color: var(--text-light);
        }
        .nav-toggle {
            display: none;
            color: var(--text-light);
            font-size: 1.4rem;
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 820px) {
            .nav-toggle {
                display: block;
            }
            .nav-panel {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding: 1.5rem 1.5rem 3rem;
                overflow-y: auto;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-top: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-panel.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-panel .nav-item {
                padding: 0.85rem 1.2rem;
                font-size: 1rem;
                border-radius: var(--radius-sm);
                color: rgba(255, 255, 255, 0.8);
            }
            .nav-panel .nav-item.active::after {
                display: none;
            }
            .nav-panel .nav-item.active {
                background: rgba(230, 57, 70, 0.2);
                border-left: 4px solid var(--primary);
                border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            }
            .nav-cta {
                margin-top: 0.75rem;
                margin-left: 0;
                justify-content: center;
                padding: 0.85rem 1.4rem;
            }
        }

        /* ===== Hero Banner (分类页横幅) ===== */
        .category-hero {
            position: relative;
            padding: 6rem 0 4rem;
            margin-top: var(--header-height);
            min-height: 340px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.30;
            transform: scale(1.02);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88) 30%, rgba(15, 26, 46, 0.60) 70%, transparent);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            color: var(--text-light);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .category-hero p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 1.5rem;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
        }
        .hero-badges .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            border-radius: 100px;
            background: rgba(255, 255, 255, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .hero-badges .badge i {
            color: var(--accent);
        }

        /* ===== Section共用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            margin-bottom: 0.75rem;
        }
        .section-header p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .section-header .accent-line {
            display: inline-block;
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            margin-top: 0.75rem;
        }
        .bg-alt {
            background: var(--bg-card);
        }
        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-dark-section .section-header h2 {
            color: var(--text-light);
        }
        .bg-dark-section .section-header p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 福利卡片网格 ===== */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.8rem;
        }
        .benefit-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.6rem 1.8rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .benefit-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .benefit-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--text-light);
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        }
        .benefit-card .icon-wrap.gold {
            background: linear-gradient(135deg, var(--accent), #e07a2f);
        }
        .benefit-card .icon-wrap.teal {
            background: linear-gradient(135deg, #2a9d8f, #1f7a6e);
        }
        .benefit-card .icon-wrap.purple {
            background: linear-gradient(135deg, #7b2cbf, #5a189a);
        }
        .benefit-card .icon-wrap.blue {
            background: linear-gradient(135deg, #457b9d, #1d3557);
        }
        .benefit-card h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .benefit-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .benefit-card .tag {
            display: inline-block;
            padding: 0.25rem 0.8rem;
            border-radius: 100px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .benefit-card .tag.hot {
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary-dark);
        }
        .benefit-card .tag.new {
            background: rgba(42, 157, 143, 0.1);
            color: #1f7a6e;
        }
        .benefit-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
        }
        .benefit-card .card-footer .value {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
        }
        .benefit-card .card-footer .btn-sm {
            padding: 0.4rem 1.2rem;
            border-radius: 100px;
            background: var(--primary);
            color: var(--text-light);
            font-size: 0.82rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .benefit-card .card-footer .btn-sm:hover {
            background: var(--primary-dark);
            transform: scale(1.04);
        }

        /* ===== 活动流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 2rem 1.2rem;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-4px);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            line-height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-light);
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 1.2rem;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .step-item h4 {
            color: var(--text-light);
            margin-bottom: 0.5rem;
            font-size: 1.05rem;
        }
        .step-item p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.2);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            gap: 1rem;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-mid));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 3rem 1.5rem;
        }
        .cta-section h2 {
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 1.8rem;
            font-size: 1.05rem;
        }
        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        .cta-btn-group .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-light);
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
        }
        .cta-btn-group .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.45);
        }
        .cta-btn-group .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-light);
            font-weight: 500;
            font-size: 1rem;
            transition: var(--transition);
        }
        .cta-btn-group .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 3.5rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-col .brand {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 0.8rem;
        }
        .footer-col p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-col h4 {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem 0;
            gap: 1rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-social {
            display: flex;
            gap: 0.8rem;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--text-light);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
            }
            .category-hero {
                padding: 4.5rem 0 2.5rem;
                min-height: 260px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .hero-badges .badge {
                font-size: 0.78rem;
                padding: 0.3rem 0.8rem;
            }
            .benefits-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 1.2rem;
            }
            .benefit-card {
                padding: 1.5rem 1.2rem 1.4rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .step-item {
                padding: 1.5rem 1rem;
            }
            .step-item::before {
                width: 40px;
                height: 40px;
                line-height: 40px;
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-btn-group .btn-primary,
            .cta-btn-group .btn-secondary {
                padding: 0.7rem 1.6rem;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .faq-question {
                padding: 1rem 1.2rem;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 1.2rem;
                font-size: 0.88rem;
            }
            .faq-answer.open {
                padding: 0 1.2rem 1rem;
            }
        }

        /* ===== 工具类 ===== */
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }