/* roulang page: index */
:root {
            --primary: #ff4d30;
            --primary-dark: #e63e1f;
            --primary-rgb: 255, 77, 48;
            --accent: #ffb800;
            --accent-rgb: 255, 184, 0;
            --bg-body: #0b0f16;
            --bg-section: #111722;
            --bg-card: #161d29;
            --bg-input: #0f1520;
            --border: #232c3b;
            --border-light: #2e394d;
            --text-main: #eef1f6;
            --text-muted: #8b98a9;
            --text-soft: #b8c2d0;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);
            --shadow: 0 8px 30px rgba(0, 0, 0, .35);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .45);
            --spacing-section: 90px;
            --transition: all .3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 100px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        input:focus,
        textarea:focus {
            outline: none;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }
        .section-pad {
            padding: var(--spacing-section) 0;
        }
        .section-head {
            margin-bottom: 48px;
            text-align: center;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .15em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(var(--accent-rgb), .1);
            border: 1px solid rgba(var(--accent-rgb), .2);
            border-radius: 30px;
            padding: 6px 18px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            letter-spacing: -.02em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            margin: 12px auto 0;
        }
        .divider-line {
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 3px;
            margin: 20px auto;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 30px;
            }
            :root {
                --spacing-section: 60px;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 15, 22, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            padding: 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 74px;
            position: relative;
        }
        .header-logo {
            font-size: 22px;
            font-weight: 900;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            box-shadow: 0 4px 15px rgba(var(--primary-rgb), .35);
        }
        .header-logo:hover {
            color: var(--text-main);
            opacity: .9;
        }
        .header-logo .logo-highlight {
            color: var(--primary);
        }
        .header-search {
            flex: 1;
            max-width: 440px;
            margin: 0 auto;
            position: relative;
        }
        .header-search .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 14px;
            pointer-events: none;
            z-index: 1;
        }
        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 28px;
            background: var(--bg-input);
            border: 1px solid var(--border);
            padding: 0 18px 0 44px;
            color: var(--text-main);
            font-size: 14px;
            transition: border-color .3s, box-shadow .3s, background .3s;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search input:focus {
            border-color: var(--primary);
            background: #131a26;
            box-shadow: 0 0 0 4px rgba(var(--primary-rgb), .12);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .header-nav a {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-soft);
            border-radius: 8px;
            padding: 8px 16px;
            transition: var(--transition);
            position: relative;
        }
        .header-nav a:hover {
            color: var(--accent);
            background: rgba(255, 184, 0, .06);
        }
        .header-nav a.active {
            color: var(--accent);
            background: rgba(var(--accent-rgb), .12);
            font-weight: 700;
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-main);
            font-size: 17px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            margin-left: auto;
            z-index: 1100;
        }
        .menu-toggle:hover {
            background: var(--border);
            color: var(--accent);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 74px;
            right: 0;
            width: 280px;
            height: calc(100vh - 74px);
            background: var(--bg-section);
            border-left: 1px solid var(--border);
            padding: 32px 28px;
            flex-direction: column;
            gap: 16px;
            z-index: 1050;
            box-shadow: var(--shadow-lg);
            transform: translateX(100%);
            transition: transform .35s ease;
        }
        .mobile-menu.open {
            transform: translateX(0);
        }
        .mobile-menu a {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-soft);
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .mobile-menu a.active {
            color: var(--accent);
        }
        .mobile-menu-search {
            margin-bottom: 20px;
        }
        .mobile-menu-search input {
            width: 100%;
            height: 44px;
            border-radius: 24px;
            background: var(--bg-input);
            border: 1px solid var(--border);
            padding: 0 18px;
            color: var(--text-main);
            font-size: 14px;
        }
        .mobile-menu-search input:focus {
            border-color: var(--primary);
        }
        @media (max-width: 992px) {
            .header-search {
                display: none;
            }
            .header-nav {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .mobile-menu:not(.open) {
                transform: translateX(100%);
            }
        }
        @media (max-width: 520px) {
            .header-logo {
                font-size: 19px;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
        }

        .hero {
            position: relative;
            padding: 140px 0 100px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 22, .82) 0%, rgba(11, 15, 22, .62) 50%, var(--bg-body) 100%);
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(var(--primary-rgb), .15), transparent 60%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(var(--accent-rgb), .12);
            border: 1px solid rgba(var(--accent-rgb), .3);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            border-radius: 30px;
            padding: 6px 18px;
            margin-bottom: 24px;
        }
        .hero-badge i {
            font-size: 13px;
        }
        .hero h1 {
            font-size: 56px;
            font-weight: 900;
            line-height: 1.2;
            color: #fff;
            letter-spacing: -0.03em;
            max-width: 760px;
            margin-bottom: 18px;
        }
        .hero h1 .text-gradient {
            background: linear-gradient(120deg, var(--accent), #ff7a45, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 18px;
            color: var(--text-soft);
            max-width: 620px;
            margin-bottom: 34px;
            line-height: 1.8;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 50px;
        }
        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), #ff6b3d);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            border-radius: 30px;
            padding: 14px 30px;
            border: none;
            box-shadow: 0 6px 20px rgba(var(--primary-rgb), .3);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-main:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(var(--primary-rgb), .45);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, .25);
            border-radius: 30px;
            padding: 13px 28px;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(var(--accent-rgb), .06);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 34px;
        }
        .hero-stat .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat .stat-num i {
            color: var(--accent);
            font-size: 24px;
            margin-left: 4px;
        }
        .hero-stat .stat-label {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero {
                padding: 100px 0 60px;
            }
            .hero h1 {
                font-size: 36px;
            }
            .hero p {
                font-size: 16px;
            }
            .hero-stats {
                gap: 24px;
                padding-top: 24px;
            }
            .hero-stat .stat-num {
                font-size: 28px;
            }
            .btn-main,
            .btn-outline-light {
                padding: 12px 22px;
                font-size: 14px;
            }
        }

        .intro-section {
            background: var(--bg-body);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: .6;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .feature-card:hover::before {
            opacity: 1;
            height: 4px;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(var(--primary-rgb), .15), rgba(var(--accent-rgb), .15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 22px;
            border: 1px solid rgba(var(--accent-rgb), .2);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
        }
        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .guide-section {
            background: var(--bg-section);
        }
        .guide-wrapper {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 32px;
            align-items: stretch;
        }
        .guide-main-card {
            background: linear-gradient(135deg, rgba(var(--primary-rgb), .08), rgba(var(--accent-rgb), .04)), var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }
        .guide-main-card:hover {
            border-color: rgba(var(--accent-rgb), .4);
            box-shadow: var(--shadow-lg);
        }
        .guide-main-card::after {
            content: '';
            position: absolute;
            right: -50px;
            bottom: -50px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(var(--primary-rgb), .12), transparent 60%);
        }
        .guide-tag {
            display: inline-block;
            background: rgba(var(--accent-rgb), .14);
            color: var(--accent);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
            padding: 5px 16px;
            margin-bottom: 14px;
            letter-spacing: .04em;
        }
        .guide-main-card h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .guide-main-card p {
            color: var(--text-muted);
            margin-bottom: 28px;
            max-width: 440px;
        }
        .guide-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            position: relative;
            z-index: 2;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1a1400;
            font-weight: 700;
            border-radius: 28px;
            padding: 12px 26px;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(var(--accent-rgb), .2);
        }
        .btn-accent:hover {
            background: #ffcb3d;
            transform: translateY(-2px);
            color: #1a1400;
            box-shadow: 0 8px 24px rgba(var(--accent-rgb), .35);
        }
        .guide-side-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .guide-side-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow);
        }
        .guide-side-card .guide-side-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(var(--primary-rgb), .12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .guide-side-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .guide-side-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .guide-side-card ul {
            list-style: none;
            margin-top: 14px;
        }
        .guide-side-card ul li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .guide-side-card ul li i {
            color: var(--accent);
            font-size: 12px;
        }
        @media (max-width: 992px) {
            .guide-wrapper {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .guide-main-card {
                padding: 28px 22px;
            }
            .guide-main-card h3 {
                font-size: 22px;
            }
        }

        .latest-section {
            background: var(--bg-body);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 26px;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .news-card-thumb {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--bg-section);
        }
        .news-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .news-card:hover .news-card-thumb img {
            transform: scale(1.06);
        }
        .news-card-thumb .news-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 15, 22, .82);
            backdrop-filter: blur(8px);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            border-radius: 20px;
            padding: 4px 12px;
            border: 1px solid rgba(var(--accent-rgb), .25);
        }
        .news-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .news-title a {
            color: var(--text-main);
        }
        .news-title a:hover {
            color: var(--accent);
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .news-meta i {
            margin-right: 5px;
            color: var(--text-muted);
        }
        .news-meta a {
            color: var(--accent);
            font-weight: 600;
        }
        .news-meta a:hover {
            color: var(--primary);
        }
        .empty-tip {
            background: var(--bg-card);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius);
            padding: 60px 30px;
            text-align: center;
            color: var(--text-muted);
            grid-column: 1 / -1;
        }
        .empty-tip i {
            font-size: 40px;
            display: block;
            margin-bottom: 16px;
            color: var(--text-muted);
            opacity: .5;
        }
        .empty-tip p {
            font-size: 16px;
        }
        @media (max-width: 992px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .news-card-thumb {
                height: 170px;
            }
            .news-card-body {
                padding: 18px;
            }
        }

        .stats-section {
            background: var(--bg-section);
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: .08;
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 1;
        }
        .stat-card {
            background: rgba(var(--bg-card), .7);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 24px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: rgba(var(--accent-rgb), .3);
            box-shadow: var(--shadow);
        }
        .stat-card .stat-icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .stat-card .stat-number {
            font-size: 36px;
            font-weight: 900;
            background: linear-gradient(120deg, #fff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-card .stat-desc {
            color: var(--text-muted);
            font-size: 13px;
            margin-top: 6px;
        }
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-card .stat-number {
                font-size: 28px;
            }
        }

        .ranking-section {
            background: var(--bg-body);
        }
        .ranking-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 22px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .ranking-item:hover {
            border-color: rgba(var(--accent-rgb), .35);
            transform: translateX(6px);
            box-shadow: var(--shadow);
        }
        .ranking-item .rank-no {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(var(--primary-rgb), .1);
            border: 1px solid rgba(var(--primary-rgb), .3);
            color: var(--primary);
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .ranking-item:nth-child(1) .rank-no {
            background: var(--accent);
            color: #1a1400;
            border-color: var(--accent);
        }
        .ranking-item:nth-child(2) .rank-no {
            background: rgba(var(--accent-rgb), .2);
            color: var(--accent);
            border-color: rgba(var(--accent-rgb), .4);
        }
        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-item .rank-name {
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .ranking-item .rank-name .hot-tag {
            background: rgba(var(--primary-rgb), .12);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            border-radius: 12px;
            padding: 2px 10px;
        }
        .rank-bar {
            height: 6px;
            background: var(--bg-section);
            border-radius: 4px;
            overflow: hidden;
        }
        .rank-bar span {
            display: block;
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            transition: width .8s ease;
        }
        .rank-percent {
            font-weight: 700;
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
        }
        @media (max-width: 520px) {
            .ranking-item {
                padding: 16px;
                gap: 16px;
            }
            .ranking-item .rank-no {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .ranking-item .rank-name {
                font-size: 15px;
            }
        }

        .steps-section {
            background: var(--bg-section);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 10px;
        }
        .step-card {
            text-align: center;
            padding: 40px 30px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .step-num {
            width: 60px;
            height: 60px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #ff6b3d);
            color: #fff;
            font-size: 24px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 20px rgba(var(--primary-rgb), .3);
        }
        .step-card:nth-child(2) .step-num {
            background: linear-gradient(135deg, var(--accent), #ff7a45);
            box-shadow: 0 6px 20px rgba(var(--accent-rgb), .3);
        }
        .step-card:nth-child(3) .step-num {
            background: linear-gradient(135deg, #2dd4bf, #06b6d4);
            box-shadow: 0 6px 20px rgba(45, 212, 191, .25);
        }
        .step-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .faq-section {
            background: var(--bg-body);
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            user-select: none;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 14px;
            transition: transform .3s;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            transition: max-height .35s ease, padding .3s ease;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 0 solid transparent;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding-top: 16px;
        }
        @media (max-width: 520px) {
            .faq-question {
                font-size: 14px;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 14px;
            }
        }

        .cta-section {
            position: relative;
            padding: 100px 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 22, .92), rgba(var(--primary-rgb), .35) 60%, rgba(11, 15, 22, .9));
        }
        .cta-wrap {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-wrap h2 {
            font-size: 42px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-wrap p {
            color: var(--text-soft);
            font-size: 18px;
            margin-bottom: 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--bg-body);
            font-weight: 700;
            border-radius: 30px;
            padding: 14px 30px;
            font-size: 16px;
            transition: var(--transition);
            border: 2px solid #fff;
        }
        .btn-white:hover {
            background: transparent;
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 255, 255, .15);
        }
        .btn-transparent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, .35);
            border-radius: 30px;
            padding: 13px 28px;
            font-size: 16px;
            transition: var(--transition);
        }
        .btn-transparent:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(var(--accent-rgb), .08);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 70px 0;
            }
            .cta-wrap h2 {
                font-size: 30px;
            }
            .cta-wrap p {
                font-size: 16px;
            }
        }

        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr .8fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 900;
            color: var(--text-main);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-main);
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col ul li i {
            margin-right: 6px;
            font-size: 12px;
            color: var(--accent);
            width: 14px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
            margin: 0;
        }
        .footer-bottom a {
            color: var(--text-soft);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .btn-main,
            .btn-outline-light,
            .btn-accent,
            .btn-white,
            .btn-transparent {
                width: 100%;
                justify-content: center;
                font-size: 15px;
            }
            .hero-buttons,
            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }
            .badge-tag {
                font-size: 12px;
            }
        }
        .skip-link {
            position: absolute;
            left: -999px;
            top: 10px;
            background: var(--accent);
            color: #1a1400;
            padding: 10px 20px;
            border-radius: 8px;
            z-index: 2000;
        }
        .skip-link:focus {
            left: 10px;
        }

/* roulang page: category1 */
:root {
    --primary: #0e1a2b;
    --primary-light: #16263d;
    --primary-lighter: #1e3050;
    --accent: #ff5c35;
    --accent-hover: #e8471f;
    --accent-soft: rgba(255, 92, 53, 0.12);
    --gold: #ffb700;
    --gold-soft: rgba(255, 183, 0, 0.15);
    --bg: #f4f6f9;
    --bg-white: #ffffff;
    --bg-dark: #0b1524;
    --text: #1a2332;
    --text-body: #2f3a4a;
    --text-muted: #6b7a8d;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow-sm: 0 2px 10px rgba(14, 26, 43, 0.06);
    --shadow: 0 8px 30px rgba(14, 26, 43, 0.09);
    --shadow-lg: 0 20px 50px rgba(14, 26, 43, 0.16);
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部导航 ===== */
.site-header {
    background: var(--primary);
    position: sticky;
    top: 0;
    z-index: 1080;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}

.site-header .container {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-top: 12px;
    padding-bottom: 12px;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--accent), #ff8a50);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 4px 14px rgba(255, 92, 53, 0.4);
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    line-height: 1.2;
    white-space: nowrap;
}

.logo-text span { color: var(--accent); }

.header-search {
    flex: 1;
    max-width: 520px;
    margin: 0 auto;
    position: relative;
    display: flex;
}

.header-search input {
    width: 100%;
    height: 44px;
    border: none;
    border-radius: 22px;
    padding: 0 48px 0 20px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 14px;
    outline: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: all var(--transition);
}

.header-search input::placeholder { color: rgba(255, 255, 255, 0.5); }

.header-search input:focus {
    background: rgba(255, 255, 255, 0.18);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 92, 53, 0.25);
}

.header-search button {
    position: absolute;
    right: 4px;
    top: 4px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition);
}

.header-search button:hover { background: var(--accent-hover); transform: scale(1.05); }

.header-nav { display: flex; align-items: center; gap: 8px; }

.header-nav a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: 20px;
    transition: all var(--transition);
    white-space: nowrap;
}

.header-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.header-nav a.active {
    color: #fff;
    background: var(--accent);
    box-shadow: 0 4px 16px rgba(255, 92, 53, 0.4);
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.header-live {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gold);
    background: var(--gold-soft);
    padding: 5px 14px;
    border-radius: 20px;
    white-space: nowrap;
}

.header-live .live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

/* ===== 页头横幅 ===== */
.category-banner {
    position: relative;
    background: linear-gradient(135deg, rgba(14, 26, 43, 0.92), rgba(22, 38, 61, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    padding: 100px 0 130px;
    text-align: center;
    overflow: hidden;
    border-bottom: 3px solid var(--accent);
}

.category-banner::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, var(--bg));
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 22px;
}

.breadcrumb a { color: rgba(255, 255, 255, 0.6); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb i { font-size: 12px; color: rgba(255, 255, 255, 0.35); }

.category-banner h1 {
    font-size: 52px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 2px;
    margin-bottom: 16px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.category-banner p.lead {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 640px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

.banner-tags {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.banner-tags .tag-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    padding: 6px 16px;
    border-radius: 20px;
    backdrop-filter: blur(8px);
}

.banner-tags .tag-item i { color: var(--gold); font-size: 12px; }

/* ===== 数据条 ===== */
.stats-bar {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-top: -70px;
    position: relative;
    z-index: 2;
    padding: 32px 40px;
    border: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item .stat-num {
    font-size: 36px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.2;
    display: block;
}

.stat-item .stat-num em {
    font-style: normal;
    color: var(--accent);
}

.stat-item .stat-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 6px;
    display: block;
}

/* ===== 主内容区 ===== */
.main-content { padding: 80px 0 60px; }

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 36px;
    gap: 20px;
    flex-wrap: wrap;
}

.section-head .section-title h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    position: relative;
    padding-left: 18px;
    line-height: 1.3;
}

.section-head .section-title h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    border-radius: 4px;
    background: var(--accent);
}

.section-head .section-title p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 8px;
    padding-left: 18px;
}

.section-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    padding: 8px 20px;
    border: 1px solid var(--accent);
    border-radius: 20px;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.section-more:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 92, 53, 0.3);
}

/* 指南卡片 */
.guide-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.guide-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

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

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

.guide-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.guide-card .card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(14, 26, 43, 0.45), transparent);
}

.card-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 16px;
    backdrop-filter: blur(6px);
}

.card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.5;
}

.card-body h3 a { color: inherit; }

.card-body h3 a:hover { color: var(--accent); }

.card-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 16px;
}

.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid #f1f3f7;
}

.card-meta .meta-item { display: inline-flex; align-items: center; gap: 5px; }
.card-meta .meta-item i { color: var(--accent); font-size: 11px; }

/* 精选推荐 */
.feature-section {
    background: var(--bg-white);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 80px 0;
    position: relative;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

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

.feature-img img { width: 100%; height: 400px; object-fit: cover; }

.feature-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(14, 26, 43, 0.3), transparent);
}

.feature-img .feature-play {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: #fff;
    border-radius: 20px;
    padding: 10px 20px;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-img .feature-play i { color: var(--gold); }

.feature-content h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 14px;
    line-height: 1.3;
}

.feature-content > p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 28px;
}

.feature-points {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 32px;
}

.feature-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
}

.feature-points li i {
    color: var(--accent);
    font-size: 16px;
    margin-top: 3px;
    flex-shrink: 0;
}

.feature-points li span { flex: 1; }

.feature-points li strong { color: var(--primary); font-weight: 700; }

.btn-feature {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    padding: 14px 32px;
    border-radius: 26px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 6px 24px rgba(255, 92, 53, 0.35);
}

.btn-feature:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 92, 53, 0.45);
}

/* 步骤流程 */
.steps-section { padding: 80px 0; }

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 20px;
}

.step-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 36px 28px;
    border: 1px solid var(--border);
    text-align: center;
    position: relative;
    transition: all var(--transition);
}

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

.step-num {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 26px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(14, 26, 43, 0.25);
    position: relative;
}

.step-num::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px dashed var(--accent);
    opacity: 0.4;
    animation: rotate 12s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
    background: var(--bg-dark);
    padding: 90px 0;
    position: relative;
    overflow: hidden;
}

.faq-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 92, 53, 0.12), transparent 70%);
}

.faq-section .section-title h2 { color: #fff; }
.faq-section .section-title h2::before { background: var(--accent); }
.faq-section .section-title p { color: rgba(255, 255, 255, 0.6); }

.faq-list {
    max-width: 840px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition);
}

.faq-item:hover {
    border-color: rgba(255, 92, 53, 0.3);
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    user-select: none;
}

.faq-question .q-label {
    display: flex;
    align-items: center;
    gap: 14px;
    font-weight: 600;
    color: #fff;
    font-size: 16px;
}

.faq-question .q-label .q-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: rgba(255, 92, 53, 0.15);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 800;
    flex-shrink: 0;
}

.faq-question .q-arrow {
    color: rgba(255, 255, 255, 0.4);
    font-size: 14px;
    transition: transform var(--transition);
    flex-shrink: 0;
}

.faq-item.open .q-arrow { transform: rotate(180deg); color: var(--accent); }

.faq-answer {
    padding: 0 24px 20px 68px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.3s ease;
    opacity: 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    max-height: 400px;
    padding-bottom: 20px;
    opacity: 1;
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    padding: 90px 0;
    background: linear-gradient(135deg, rgba(14, 26, 43, 0.85), rgba(30, 48, 80, 0.9)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    text-align: center;
    background-attachment: fixed;
}

.cta-section h2 {
    font-size: 38px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    margin: 0 auto 34px;
    line-height: 1.8;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--accent);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    padding: 16px 44px;
    border-radius: 30px;
    transition: all var(--transition);
    box-shadow: 0 8px 30px rgba(255, 92, 53, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.15);
}

.cta-btn:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 14px 40px rgba(255, 92, 53, 0.5);
}

.cta-btn i { font-size: 16px; }

.cta-note {
    margin-top: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
    border-top: 3px solid var(--accent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 15px;
}

.footer-logo span:last-child {
    font-size: 20px;
    font-weight: 800;
    color: #fff;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
    max-width: 320px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 24px;
    height: 3px;
    border-radius: 3px;
    background: var(--accent);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.55);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.footer-col ul li a i {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
    transition: color var(--transition);
}

.footer-col ul li a:hover i { color: var(--accent); }

.footer-bottom {
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .guide-cards { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: 1fr; gap: 32px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .header-search { order: 3; flex-basis: 100%; max-width: 100%; }
    .site-header .container { gap: 16px; }
    .header-cta { margin-left: auto; }
}

@media (max-width: 768px) {
    .category-banner { padding: 70px 0 100px; }
    .category-banner h1 { font-size: 36px; }
    .category-banner p.lead { font-size: 15px; }
    .stats-bar { padding: 24px; margin-top: -50px; }
    .step-card { padding: 28px 20px; }
    .steps-grid { grid-template-columns: 1fr; }
    .guide-cards { grid-template-columns: 1fr; }
    .section-head { flex-direction: column; align-items: flex-start; }
    .section-head .section-title h2 { font-size: 26px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .feature-img img { height: 300px; }
    .faq-question .q-label { font-size: 14px; }
    .faq-answer { padding: 0 18px 16px 24px; }
    .cta-section h2 { font-size: 28px; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat-item .stat-num { font-size: 28px; }
    .site-header .container { flex-wrap: wrap; }
    .logo-text { font-size: 18px; }
    .header-cta { display: none; }
    .header-nav { width: 100%; justify-content: center; gap: 4px; }
    .header-nav a { font-size: 14px; padding: 6px 14px; }
    .category-banner h1 { font-size: 30px; letter-spacing: 1px; }
    .category-banner p.lead { font-size: 14px; }
    .banner-tags .tag-item { font-size: 12px; padding: 4px 12px; }
    .guide-card .card-img { height: 170px; }
    .cta-section p { font-size: 14px; }
    .cta-btn { padding: 14px 30px; font-size: 15px; }
}

/* roulang page: article */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --primary-lighter: #334155;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --accent-light: #fff7ed;
            --accent-border: rgba(249, 115, 22, .35);
            --accent-glow: rgba(249, 115, 22, .18);
            --gold: #fbbf24;
            --success: #10b981;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #0f172a;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(2, 6, 23, .06);
            --shadow-md: 0 8px 30px rgba(2, 6, 23, .08);
            --shadow-lg: 0 20px 50px rgba(2, 6, 23, .12);
            --shadow-brand: 0 10px 30px rgba(249, 115, 22, .35);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            margin: 0;
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            box-shadow: 0 8px 30px rgba(2, 6, 23, .18);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(249, 115, 22, .35);
        }

        .brand-text {
            color: #fff;
            font-size: 19px;
            font-weight: 800;
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-text-sub {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-light);
            letter-spacing: 2px;
            line-height: 1;
            margin-top: 2px;
        }

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

        .header-nav a {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            font-weight: 500;
            padding: 9px 18px;
            border-radius: 100px;
            line-height: 1.4;
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .header-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--accent), #fb923c);
            box-shadow: 0 6px 16px var(--accent-glow);
            font-weight: 600;
        }

        .header-search {
            flex: 1;
            max-width: 460px;
            margin-left: auto;
            margin-right: 8px;
        }

        .search-form {
            position: relative;
            width: 100%;
        }

        .search-form .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 14px;
            pointer-events: none;
            z-index: 2;
        }

        .search-form input[type="search"] {
            width: 100%;
            height: 44px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 100px;
            padding: 0 20px 0 42px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .search-form input[type="search"]::placeholder {
            color: rgba(255, 255, 255, .45);
        }

        .search-form input[type="search"]:focus {
            background: rgba(255, 255, 255, .14);
            border-color: rgba(249, 115, 22, .5);
            box-shadow: 0 0 0 4px var(--accent-glow);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .1);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(249, 115, 22, .2);
            border-color: var(--accent-border);
        }

        @media (max-width: 991.98px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-nav {
                order: 4;
                width: 100%;
                display: none;
                flex-direction: column;
                background: var(--primary-light);
                border-radius: var(--radius-md);
                padding: 12px;
                margin-top: 4px;
            }

            .header-nav.open {
                display: flex;
            }

            .header-nav a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 15px;
            }

            .header-search {
                order: 3;
                flex: 1 1 100%;
                max-width: none;
                margin: 0;
            }

            .nav-toggle {
                display: inline-flex;
            }
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            padding: 110px 0 90px;
            overflow: hidden;
        }

        .banner-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(15, 23, 42, .9) 0%, rgba(15, 23, 42, .7) 55%, rgba(249, 115, 22, .25) 100%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
        }

        .breadcrumb-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            padding: 6px 18px;
            border-radius: 100px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .8);
            font-weight: 500;
        }

        .breadcrumb-nav a:hover {
            color: var(--gold);
        }

        .bc-sep {
            color: rgba(255, 255, 255, .35);
        }

        .bc-current {
            color: var(--gold);
            font-weight: 500;
        }

        .article-meta-top {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--accent), #fb923c);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 100px;
            box-shadow: 0 4px 14px var(--accent-glow);
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(16, 185, 129, .15);
            border: 1px solid rgba(16, 185, 129, .4);
            color: #6ee7b7;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 100px;
        }

        .live-dot {
            width: 7px;
            height: 7px;
            background: var(--success);
            border-radius: 50%;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, .5);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
            }
        }

        .article-title {
            color: #fff;
            font-size: clamp(26px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -.5px;
            margin: 0 0 16px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, .3);
        }

        .article-desc {
            color: rgba(255, 255, 255, .75);
            font-size: 16px;
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto;
        }

        /* ===== 正文区 ===== */
        .article-main {
            padding: 60px 0;
        }

        .article-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 40px 44px;
            overflow: hidden;
        }

        @media (max-width: 767.98px) {
            .article-card {
                padding: 24px 20px;
            }
        }

        /* 文章正文排版 */
        .article-body {
            font-size: 16.5px;
            line-height: 1.95;
            color: #334155;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--accent);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text);
            margin: 32px 0 14px;
            line-height: 1.4;
        }

        .article-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 24px 0 12px;
        }

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body a {
            color: var(--accent-dark);
            border-bottom: 1px solid rgba(234, 88, 12, .3);
        }

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

        .article-body ul,
        .article-body ol {
            padding-left: 1.6em;
            margin: 0 0 18px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body blockquote {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 18px 24px;
            margin: 24px 0;
            color: #7c2d12;
            font-style: normal;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .article-body table th,
        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            text-align: left;
        }

        .article-body table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .article-body table tr:hover td {
            background: var(--bg);
        }

        .article-body .code-block {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-md);
            padding: 18px 22px;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
            font-size: 14px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .empty-content {
            color: var(--text-muted);
            text-align: center;
            padding: 60px 20px;
            background: var(--bg);
            border-radius: var(--radius-md);
        }

        /* 文章页脚标签 */
        .article-footer-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

        .footer-tag-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-right: 4px;
        }

        .article-tag {
            display: inline-flex;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 100px;
            transition: var(--transition);
        }

        .article-tag:hover {
            background: var(--accent-light);
            border-color: var(--accent-border);
            color: var(--accent-dark);
        }

        /* 分享按钮 */
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 24px;
        }

        .share-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            margin-right: 4px;
        }

        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-muted);
            transition: var(--transition);
        }

        .share-btn:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .share-btn.weixin:hover {
            background: #07c160;
            border-color: #07c160;
            color: #fff;
        }

        .share-btn.weibo:hover {
            background: #e6162d;
            border-color: #e6162d;
            color: #fff;
        }

        .share-btn.qq:hover {
            background: #12b7f5;
            border-color: #12b7f5;
            color: #fff;
        }

        /* 未找到 */
        .not-found-box {
            text-align: center;
            padding: 70px 20px;
        }

        .nf-icon {
            font-size: 64px;
            color: var(--text-light);
            display: inline-block;
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ===== 按钮 ===== */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), #fb923c);
            color: #fff;
            font-weight: 600;
            border: none;
            border-radius: 100px;
            padding: 12px 28px;
            font-size: 15px;
            transition: var(--transition);
            box-shadow: 0 6px 20px var(--accent-glow);
        }

        .btn-brand:hover,
        .btn-brand:focus {
            color: #fff;
            background: linear-gradient(135deg, var(--accent-dark), var(--accent));
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, .4);
            outline: none;
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px var(--accent-glow);
        }

        .btn-brand.btn-lg {
            padding: 15px 36px;
            font-size: 16px;
        }

        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            font-weight: 500;
            border-radius: 100px;
            padding: 10px 22px;
            font-size: 14px;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .22);
            border-color: rgba(255, 255, 255, .4);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .side-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .side-card:hover {
            box-shadow: var(--shadow-md);
        }

        .side-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-title i {
            color: var(--accent);
            font-size: 15px;
        }

        .info-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .info-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-light);
            font-size: 14px;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-label {
            color: var(--text-muted);
        }

        .info-value {
            font-weight: 600;
            color: var(--text);
            text-align: right;
        }

        .relate-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .relate-list li {
            margin-bottom: 4px;
        }

        .relate-list a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 10px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .relate-list a:hover {
            background: var(--accent-light);
            transform: translateX(4px);
        }

        .relate-index {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .relate-list a:hover .relate-index {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-color: transparent;
            color: #fff;
        }

        .relate-info {
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .relate-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            line-height: 1.5;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .relate-meta {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
        }

        .guide-card {
            position: relative;
            background-size: cover;
            background-position: center;
            overflow: hidden;
            border: none;
            min-height: 220px;
            display: flex;
            align-items: flex-end;
            padding: 0;
        }

        .guide-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, .4) 0%, rgba(15, 23, 42, .9) 100%);
            z-index: 1;
        }

        .guide-content {
            position: relative;
            z-index: 2;
            padding: 24px;
            width: 100%;
        }

        .guide-content h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .guide-content p {
            color: rgba(255, 255, 255, .7);
            font-size: 13px;
            margin-bottom: 14px;
        }

        .guide-content .btn-ghost-light {
            padding: 8px 18px;
            font-size: 13px;
        }

        .empty-tip {
            color: var(--text-muted);
            font-size: 14px;
            text-align: center;
            padding: 20px 0;
        }

        /* ===== 相关推荐 ===== */
        .relate-section {
            padding: 70px 0 80px;
            background: var(--surface);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .section-head {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 100px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
            letter-spacing: -.3px;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 500px;
            margin: 0 auto;
        }

        .relate-post-card {
            display: block;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .relate-post-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-border);
        }

        .relate-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .relate-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .cover-cat {
            position: absolute;
            left: 14px;
            bottom: 14px;
            background: rgba(15, 23, 42, .75);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 100px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .15);
        }

        .relate-body {
            padding: 22px 22px 20px;
        }

        .relate-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text);
            margin: 0 0 8px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            transition: var(--transition);
        }

        .relate-post-card:hover .relate-body h3 {
            color: var(--accent-dark);
        }

        .relate-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .relate-foot {
            font-size: 13px;
            color: var(--text-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .empty-state {
            background: var(--bg);
            border: 2px dashed var(--border);
            border-radius: var(--radius-lg);
            padding: 50px 20px;
            text-align: center;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-band {
            position: relative;
            padding: 80px 0;
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .92) 0%, rgba(30, 41, 59, .85) 50%, rgba(234, 88, 12, .35) 100%);
            z-index: 1;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-text h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, .75);
            font-size: 16px;
            margin-bottom: 0;
        }

        @media (max-width: 767.98px) {
            .cta-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 30px;
        }

        @media (max-width: 767.98px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            width: 38px;
            height: 38px;
            font-size: 16px;
        }

        .footer-logo span:last-child {
            color: #fff;
            font-size: 18px;
            font-weight: 800;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
            max-width: 360px;
            margin-bottom: 0;
        }

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

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

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

        .footer-col ul a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

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

        .footer-col ul a i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .6);
        }

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

        /* ===== 焦点状态 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        @media (max-width: 575.98px) {
            .article-banner {
                padding: 70px 0 55px;
            }

            .article-title {
                font-size: 24px;
            }

            .article-desc {
                font-size: 14px;
            }

            .article-section {
                padding: 40px 0;
            }

            .article-card {
                border-radius: var(--radius-lg);
            }

            .breadcrumb-nav {
                font-size: 12px;
                padding: 5px 14px;
                flex-wrap: wrap;
            }

            .relate-section {
                padding: 50px 0 60px;
            }

            .cta-band {
                padding: 55px 0;
            }

            .cta-text h2 {
                font-size: 22px;
            }

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