/* roulang page: index */
:root {
    --primary: #0b1d3a;
    --primary-light: #14294d;
    --accent: #ff6b2c;
    --accent-hover: #e55a1f;
    --accent-soft: rgba(255, 107, 44, 0.12);
    --bg-light: #f5f7fb;
    --bg-white: #ffffff;
    --text-main: #162033;
    --text-muted: #6b7a93;
    --border: #e6ebf2;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --radius-full: 999px;
    --shadow-sm: 0 4px 16px rgba(11, 29, 58, 0.06);
    --shadow-md: 0 8px 30px rgba(11, 29, 58, 0.09);
    --shadow-lg: 0 18px 44px rgba(11, 29, 58, 0.13);
    --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg-white); color: var(--text-main); line-height: 1.7; font-size: 16px; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { padding: 88px 0; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(11, 29, 58, 0.96); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255, 255, 255, 0.08); box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-icon { width: 42px; height: 42px; background: var(--accent); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-weight: 800; color: #fff; font-size: 18px; letter-spacing: -1px; box-shadow: 0 4px 14px rgba(255, 107, 44, 0.35); }
.brand-text { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: 0.5px; }
.brand-text span { color: var(--accent); }
.main-nav { display: flex; align-items: center; }
.nav-list { display: flex; gap: 6px; }
.nav-link { display: inline-block; padding: 10px 20px; border-radius: var(--radius-full); font-size: 15px; font-weight: 500; color: rgba(255,255,255,0.85); transition: var(--transition); }
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.1); }
.nav-link.active { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(255,107,44,0.3); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search { display: flex; align-items: center; background: rgba(255,255,255,0.1); border-radius: var(--radius-full); padding: 4px 6px 4px 16px; border: 1px solid rgba(255,255,255,0.15); transition: var(--transition); }
.header-search:focus-within { background: rgba(255,255,255,0.16); border-color: var(--accent); }
.search-input { background: transparent; border: none; outline: none; color: #fff; font-size: 14px; width: 140px; }
.search-input::placeholder { color: rgba(255,255,255,0.5); }
.search-btn { width: 36px; height: 36px; border: none; border-radius: var(--radius-full); background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); }
.search-btn:hover { background: var(--accent-hover); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero { position: relative; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 150px 0 130px; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11,29,58,0.92) 0%, rgba(11,29,58,0.72) 60%, rgba(11,29,58,0.55) 100%); }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 780px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.25); color: #fff; padding: 8px 22px; border-radius: var(--radius-full); font-size: 14px; font-weight: 500; backdrop-filter: blur(4px); margin-bottom: 24px; }
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: 56px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 20px; letter-spacing: 2px; }
.hero h1 span { color: var(--accent); }
.hero-sub { font-size: 18px; color: rgba(255,255,255,0.88); line-height: 1.8; max-width: 600px; margin: 0 auto 36px; }
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-full); font-size: 16px; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(255,107,44,0.35); }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,107,44,0.45); }
.btn-ghost { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid rgba(255,255,255,0.3); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }
.hero-meta { display: flex; justify-content: center; gap: 30px; margin-top: 48px; color: rgba(255,255,255,0.8); font-size: 14px; flex-wrap: wrap; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta i { color: var(--accent); }

/* Stats */
.stats-section { background: var(--primary); padding: 48px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-card { text-align: center; padding: 20px 10px; }
.stat-num { font-size: 40px; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-num .plus { color: var(--accent); }
.stat-label { color: rgba(255,255,255,0.6); font-size: 14px; margin-top: 6px; }

/* Section header */
.section-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag { display: inline-block; background: var(--accent-soft); color: var(--accent); font-size: 13px; font-weight: 600; padding: 6px 18px; border-radius: var(--radius-full); margin-bottom: 16px; }
.section-header h2 { font-size: 36px; font-weight: 800; color: var(--text-main); margin-bottom: 14px; line-height: 1.3; }
.section-header p { color: var(--text-muted); font-size: 16px; }

/* Features */
.features-section { background: var(--bg-light); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.feature-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 28px; text-align: center; transition: var(--transition); box-shadow: var(--shadow-sm); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.feature-icon { width: 68px; height: 68px; background: var(--accent-soft); color: var(--accent); border-radius: 18px; display: flex; align-items: center; justify-content: center; font-size: 28px; margin: 0 auto 22px; transition: var(--transition); }
.feature-card:hover .feature-icon { background: var(--accent); color: #fff; }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; }
.feature-card p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }

/* Categories */
.category-section { background: var(--bg-white); }
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.category-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; height: 310px; display: block; transition: var(--transition); box-shadow: var(--shadow-md); }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover img { transform: scale(1.06); }
.category-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,29,58,0.15) 0%, rgba(11,29,58,0.92) 100%); display: flex; flex-direction: column; justify-content: flex-end; padding: 32px; }
.category-overlay .cat-tag { display: inline-flex; align-items: center; gap: 6px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: var(--radius-full); width: fit-content; margin-bottom: 12px; }
.category-overlay h3 { color: #fff; font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.category-overlay p { color: rgba(255,255,255,0.75); font-size: 14px; margin-bottom: 16px; }
.category-overlay .cat-more { color: #fff; font-size: 14px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
.category-overlay .cat-more i { transition: transform 0.3s ease; }
.category-card:hover .cat-more i { transform: translateX(4px); }

/* News */
.news-section { background: var(--bg-light); }
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card { display: flex; flex-direction: column; background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); height: 100%; }
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.news-thumb { width: 100%; height: 180px; object-fit: cover; }
.news-body { padding: 24px; flex: 1; }
.news-badge { display: inline-block; background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: var(--radius-full); margin-bottom: 12px; }
.news-body h3 { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body h3:hover { color: var(--accent); }
.news-body p { color: var(--text-muted); font-size: 14px; line-height: 1.7; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { margin-top: auto; display: flex; align-items: center; gap: 16px; color: var(--text-muted); font-size: 13px; }
.news-meta i { margin-right: 4px; }
.empty-tip { text-align: center; padding: 60px 20px; background: var(--bg-white); border-radius: var(--radius-lg); border: 1px dashed var(--border); color: var(--text-muted); font-size: 16px; grid-column: 1 / -1; }

/* Steps */
.steps-section { background: var(--bg-white); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.step-item { text-align: center; padding: 32px 20px; position: relative; }
.step-num { width: 56px; height: 56px; margin: 0 auto 20px; background: var(--primary); color: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; position: relative; box-shadow: 0 6px 20px rgba(11,29,58,0.2); }
.step-num::after { content: ''; position: absolute; width: 72px; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); left: 100%; top: 50%; }
.step-item:last-child .step-num::after { display: none; }
.step-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-item p { color: var(--text-muted); font-size: 14px; }

/* FAQ */
.faq-section { background: var(--bg-light); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 16px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.faq-item summary { padding: 22px 28px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; font-size: 16px; font-weight: 600; color: var(--text-main); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon { width: 28px; height: 28px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 14px; transition: var(--transition); flex-shrink: 0; }
.faq-item[open] summary .faq-icon { background: var(--accent); color: #fff; transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 28px 22px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }

/* CTA */
.cta-section { position: relative; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; padding: 110px 0; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11,29,58,0.9), rgba(11,29,58,0.75)); }
.cta-content { position: relative; z-index: 2; text-align: center; max-width: 620px; margin: 0 auto; }
.cta-content h2 { color: #fff; font-size: 38px; font-weight: 800; margin-bottom: 20px; line-height: 1.3; }
.cta-content p { color: rgba(255,255,255,0.8); font-size: 17px; margin-bottom: 36px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-outline-light { background: transparent; border: 2px solid rgba(255,255,255,0.6); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.15); border-color: #fff; transform: translateY(-2px); }

/* Footer */
.site-footer { background: var(--primary); color: rgba(255,255,255,0.75); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 50px; padding-bottom: 50px; }
.footer-brand .brand-text { font-size: 24px; margin-bottom: 16px; display: inline-block; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-links h4, .footer-contact h4 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.footer-links a { display: block; color: rgba(255,255,255,0.6); font-size: 14px; padding: 5px 0; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact p { color: rgba(255,255,255,0.6); font-size: 14px; margin-bottom: 10px; }
.footer-contact i { color: var(--accent); margin-right: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.45); }

/* Responsive */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .step-num::after { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
    section { padding: 64px 0; }
    .header-inner { height: 64px; }
    .brand-text { font-size: 18px; }
    .nav-toggle { display: flex; }
    .main-nav { position: fixed; top: 64px; left: 0; right: 0; background: var(--primary); padding: 20px; transform: translateY(-16px); opacity: 0; visibility: hidden; transition: var(--transition); box-shadow: var(--shadow-lg); }
    .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-list { flex-direction: column; gap: 8px; }
    .nav-link { display: block; background: rgba(255,255,255,0.06); padding: 14px 20px; }
    .nav-link.active { background: var(--accent); }
    .header-search { display: none; }
    .hero { padding: 100px 0 80px; }
    .hero h1 { font-size: 38px; }
    .hero-sub { font-size: 16px; }
    .category-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .section-header h2 { font-size: 28px; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 30px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 280px; }
    .stats-grid { gap: 10px; }
    .stat-num { font-size: 30px; }
}

/* roulang page: category1 */
/* ===== design variables ===== */
        :root {
            --primary: #0b1622;
            --primary-light: #112233;
            --primary-dark: #060d15;
            --accent: #f5a623;
            --accent-hover: #dd8f12;
            --accent-soft: #fff3dd;
            --accent-gradient: linear-gradient(135deg, #f5a623 0%, #ff7a18 100%);
            --bg-body: #f5f7fb;
            --white: #ffffff;
            --text: #17273a;
            --text-light: #617387;
            --border: #e6ecf3;
            --radius-lg: 20px;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(11, 22, 35, 0.08);
            --shadow-hover: 0 14px 36px rgba(11, 22, 35, 0.14);
            --transition: all 0.3s ease;
            --nav-height: 72px;
        }

        /* ===== base / reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        ::selection {
            background: var(--accent);
            color: #fff;
        }
        .container {
            max-width: 1240px;
        }

        /* ===== header / nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            box-shadow: 0 4px 20px rgba(0, 0, 0, .3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: var(--nav-height);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--accent-gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(245, 166, 35, .45);
        }
        .brand-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            line-height: 1;
        }
        .brand-text span {
            color: var(--accent);
        }
        .main-nav .nav-list {
            list-style: none;
            display: flex;
            gap: 4px;
            margin: 0;
            padding: 0;
        }
        .nav-link {
            display: inline-block;
            padding: 9px 20px;
            border-radius: 30px;
            color: rgba(255, 255, 255, .85);
            font-weight: 500;
            font-size: .95rem;
            transition: var(--transition);
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }
        .nav-link.active {
            background: var(--accent-gradient);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(245, 166, 35, .30);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .10);
            border-radius: 40px;
            padding: 4px 4px 4px 16px;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, .18);
        }
        .search-input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            width: 130px;
            font-size: .9rem;
        }
        .search-input::placeholder {
            color: rgba(255, 255, 255, .5);
        }
        .search-btn {
            background: var(--accent-gradient);
            border: none;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .search-btn:hover {
            transform: scale(1.06);
            box-shadow: 0 4px 12px rgba(245, 166, 35, .4);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle:hover span {
            background: var(--accent);
        }

        /* ===== page hero ===== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 110px 0 80px;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(6, 13, 21, .92) 0%, rgba(6, 13, 21, .72) 50%, rgba(6, 13, 21, .38) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 166, 35, .15);
            border: 1px solid rgba(245, 166, 35, .4);
            color: var(--accent);
            font-weight: 600;
            font-size: .9rem;
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            max-width: 640px;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero .hero-desc {
            color: rgba(255, 255, 255, .82);
            font-size: 1.08rem;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tags .tag {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            color: #fff;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: .88rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .hero-tags .tag:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        /* ===== section common ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 30px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            margin: 0;
            line-height: 1.3;
            position: relative;
            padding-left: 20px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 6px;
            border-radius: 6px;
            background: var(--accent-gradient);
        }
        .section-subtitle {
            color: var(--text-light);
            font-size: .98rem;
            margin: 6px 0 0 20px;
        }
        .section-more {
            color: var(--accent);
            font-weight: 600;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .section-more:hover {
            color: var(--accent-hover);
            gap: 10px;
        }

        /* ===== channel tabs ===== */
        .channel-tabs {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding-bottom: 6px;
            scrollbar-width: thin;
        }
        .chip {
            flex-shrink: 0;
            border: 1px solid var(--border);
            background: #fff;
            padding: 8px 22px;
            border-radius: 40px;
            font-size: .92rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(11, 22, 35, .04);
        }
        .chip:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .chip.active {
            background: var(--accent-gradient);
            border-color: transparent;
            color: #fff;
            box-shadow: 0 6px 18px rgba(245, 166, 35, .35);
        }

        /* ===== match cards ===== */
        .match-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
        }
        .match-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .match-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .match-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .match-card:hover .match-cover img {
            transform: scale(1.06);
        }
        .match-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 35%, rgba(6, 13, 21, .65));
        }
        .match-status {
            position: absolute;
            z-index: 2;
            top: 14px;
            right: 14px;
            background: var(--accent-gradient);
            color: #fff;
            font-size: .78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(245, 166, 35, .35);
        }
        .match-status.live {
            background: #ff4757;
            box-shadow: 0 4px 12px rgba(255, 71, 87, .35);
        }
        .match-status.done {
            background: rgba(255, 255, 255, .85);
            color: var(--text);
        }
        .match-type {
            position: absolute;
            z-index: 2;
            bottom: 14px;
            left: 14px;
            background: rgba(0, 0, 0, .55);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #fff;
            font-size: .8rem;
            padding: 3px 12px;
            border-radius: 20px;
            backdrop-filter: blur(6px);
        }
        .match-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .match-card .match-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            min-height: 46px;
        }
        .match-card .match-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: .86rem;
            color: var(--text-light);
        }
        .match-card .match-meta i {
            color: var(--accent);
            margin-right: 5px;
        }
        .match-card .match-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .match-viewers {
            font-size: .86rem;
            color: var(--text-light);
            font-weight: 600;
        }
        .match-viewers i {
            color: #ff4757;
            margin-right: 4px;
        }
        .link-arrow {
            color: var(--accent);
            font-weight: 700;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .link-arrow:hover {
            color: var(--accent-hover);
            gap: 9px;
        }

        /* ===== news section ===== */
        .news-feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: block;
        }
        .news-feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-feature-card .news-thumb {
            height: 280px;
            overflow: hidden;
        }
        .news-feature-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .news-feature-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-feature-card .news-content {
            padding: 24px;
        }
        .news-feature-card .news-badge {
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: .8rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 12px;
        }
        .news-feature-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            line-height: 1.5;
            margin-bottom: 12px;
        }
        .news-feature-card p {
            color: var(--text-light);
            font-size: .95rem;
            margin-bottom: 16px;
        }
        .news-meta {
            display: flex;
            gap: 18px;
            color: var(--text-light);
            font-size: .85rem;
        }
        .news-meta i {
            color: var(--accent);
            margin-right: 5px;
        }
        .news-list {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 12px 20px;
        }
        .news-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-list-item:hover {
            padding-left: 8px;
        }
        .news-list-thumb {
            width: 88px;
            height: 66px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--border);
        }
        .news-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .news-list-item:hover .news-list-thumb img {
            transform: scale(1.08);
        }
        .news-list-info h4 {
            font-size: .98rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
            color: var(--text);
            transition: var(--transition);
        }
        .news-list-item:hover .news-list-info h4 {
            color: var(--accent-hover);
        }
        .news-list-info .news-date {
            font-size: .8rem;
            color: var(--text-light);
        }

        /* ===== stats section ===== */
        .stats-section {
            position: relative;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: 80px 0;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(6, 13, 21, .95) 0%, rgba(17, 34, 51, .88) 100%);
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-section .section-title {
            color: #fff;
        }
        .stats-section .section-subtitle {
            color: rgba(255, 255, 255, .65);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 30px;
        }
        .stat-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(8px);
        }
        .stat-card:hover {
            background: rgba(245, 166, 35, .12);
            border-color: rgba(245, 166, 35, .4);
            transform: translateY(-6px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-card .stat-label {
            color: rgba(255, 255, 255, .82);
            font-size: .95rem;
            margin-top: 8px;
            font-weight: 500;
        }
        .stat-card .stat-icon {
            font-size: 1.6rem;
            color: rgba(255, 255, 255, .5);
            margin-bottom: 8px;
        }

        /* ===== guide section ===== */
        .guide-section {
            background: #fff;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 10px;
        }
        .guide-step {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: #fafbfe;
            transition: var(--transition);
            position: relative;
        }
        .guide-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(245, 166, 35, .4);
        }
        .step-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: var(--accent-soft);
            color: var(--accent-hover);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .guide-step:hover .step-icon {
            background: var(--accent-gradient);
            color: #fff;
            box-shadow: 0 6px 18px rgba(245, 166, 35, .4);
        }
        .guide-step h4 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .guide-step p {
            color: var(--text-light);
            font-size: .9rem;
            line-height: 1.6;
        }

        /* ===== faq ===== */
        .faq-section {
            background: var(--bg-body);
        }
        .accordion {
            max-width: 900px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            box-shadow: 0 2px 10px rgba(11, 22, 35, .04);
            overflow: hidden;
            background: #fff;
        }
        .accordion-button {
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            background: #fff;
            border: none;
            transition: var(--transition);
        }
        .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--accent-hover);
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent);
        }
        .accordion-button::after {
            background-size: 1rem;
        }
        .accordion-body {
            padding: 6px 24px 20px;
            color: var(--text-light);
            font-size: .96rem;
            line-height: 1.8;
        }

        /* ===== cta ===== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 90px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(6, 13, 21, .92) 0%, rgba(17, 34, 51, .80) 100%);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .cta-section h2 span {
            color: var(--accent);
        }
        .cta-section p {
            color: rgba(255, 255, 255, .78);
            max-width: 520px;
            margin: 0 auto 30px;
            font-size: 1rem;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-cta {
            background: var(--accent-gradient);
            color: #fff;
            border: none;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(245, 166, 35, .4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(245, 166, 35, .55);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
            padding: 13px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* ===== footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 60px 0 0;
            border-top: 3px solid var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-text {
            font-size: 1.6rem;
        }
        .footer-brand p {
            margin-top: 16px;
            font-size: .92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 340px;
        }
        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after,
        .footer-contact h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            background: var(--accent-gradient);
            border-radius: 4px;
        }
        .footer-links a {
            display: block;
            padding: 5px 0;
            color: rgba(255, 255, 255, .65);
            font-size: .92rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 8px;
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .92rem;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, .65);
        }
        .footer-contact p i {
            color: var(--accent);
            width: 20px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 18px 0;
            text-align: center;
            font-size: .88rem;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== responsive ===== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 2.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .header-search {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--primary);
                padding: 16px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
                display: none;
            }
            .main-nav.open {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                gap: 4px;
            }
            .nav-link {
                display: block;
                padding: 12px 16px;
                border-radius: 10px;
            }
            .page-hero {
                padding: 80px 0 60px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .news-feature-card .news-thumb {
                height: 200px;
            }
            .section-block {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 1.2rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .header-inner {
                height: 64px;
            }
            .main-nav {
                top: 64px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-cta,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .news-list-thumb {
                width: 100%;
                height: 140px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0f1f2e;
    --primary-light: #1c3a55;
    --accent: #f5a623;
    --accent-hover: #d9910d;
    --bg: #f4f6f9;
    --bg-white: #ffffff;
    --bg-dark: #0a1420;
    --text: #1f2a37;
    --text-light: #6b7a8d;
    --border: #e2e8f0;
    --radius: 14px;
    --radius-lg: 24px;
    --shadow: 0 4px 24px rgba(15, 31, 46, .06);
    --shadow-lg: 0 12px 48px rgba(15, 31, 46, .12);
    --transition: all .3s ease;
    --section-space: 80px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    margin: 0;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; margin: 0 auto; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 28px; font-size: .95rem; font-weight: 600; border-radius: 50px;
    transition: var(--transition); border: 2px solid transparent; line-height: 1.2;
}
.btn:focus-visible { outline: 3px solid rgba(245, 166, 35, .4); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: #0a1420; }
.btn-primary:hover { background: var(--accent-hover); color: #0a1420; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245, 166, 35, .35); }
.btn-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #0a1420; transform: translateY(-2px); }
.btn-light { background: #ffffff; color: var(--primary); }
.btn-light:hover { background: #f0f0f0; color: var(--primary); transform: translateY(-2px); }

/* ===== 导航 ===== */
.site-header {
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0,0,0,.04);
    position: sticky; top: 0; z-index: 1000;
    box-shadow: 0 2px 12px rgba(15,31,46,.04);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon {
    width: 38px; height: 38px; border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #ffd460);
    color: #0a1420; font-size: 1.2rem; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 12px rgba(245,166,35,.35);
}
.brand-text { font-size: 1.4rem; font-weight: 800; color: var(--primary); letter-spacing: .5px; }
.brand-text span { color: var(--accent); }
.main-nav { display: flex; align-items: center; }
.nav-list { display: flex; list-style: none; margin: 0; padding: 0; gap: 4px; }
.nav-link {
    display: block; padding: 10px 18px; border-radius: 30px;
    font-size: .95rem; font-weight: 500; color: var(--text);
    transition: var(--transition); position: relative;
}
.nav-link:hover { background: rgba(245,166,35,.1); color: var(--accent); }
.nav-link.active { background: var(--primary); color: #ffffff; font-weight: 600; }
.nav-link.active::after {
    content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
    width: 20px; height: 3px; border-radius: 3px; background: var(--accent);
}
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-search { display: flex; align-items: center; background: var(--bg); border-radius: 30px; padding: 4px 6px; }
.search-input {
    width: 180px; border: none; background: transparent; font-size: .9rem;
    padding: 8px 12px; outline: none; color: var(--text); transition: width .3s ease;
}
.search-input:focus { width: 220px; }
.search-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #0a1420; display: flex; align-items: center; justify-content: center; font-size: .85rem; transition: var(--transition); }
.search-btn:hover { background: var(--accent-hover); color: #0a1420; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; border-radius: 10px; background: var(--bg); align-items: center; justify-content: center; }
.nav-toggle span { width: 20px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }

/* ===== 文章Hero ===== */
.article-hero {
    position: relative; padding: 90px 0 60px; background: var(--bg-dark);
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover; background-position: center;
    overflow: hidden;
}
.article-hero::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(10,20,32,.85) 0%, rgba(10,20,32,.55) 100%);
}
.article-hero .hero-content { position: relative; z-index: 2; max-width: 850px; }
.article-hero .category-badge {
    display: inline-block; padding: 6px 18px; border-radius: 30px;
    background: var(--accent); color: #0a1420; font-size: .85rem; font-weight: 700;
    margin-bottom: 18px; box-shadow: 0 4px 16px rgba(245,166,35,.35);
}
.article-hero h1 {
    color: #ffffff; font-size: 2.5rem; font-weight: 800; line-height: 1.3;
    margin-bottom: 18px; letter-spacing: .5px;
    text-shadow: 0 2px 12px rgba(0,0,0,.2);
}
.article-hero .meta-info { display: flex; flex-wrap: wrap; gap: 18px; color: rgba(255,255,255,.8); font-size: .9rem; }
.article-hero .meta-info i { color: var(--accent); margin-right: 6px; }

/* ===== 面包屑 ===== */
.breadcrumb-nav { padding: 18px 0; border-bottom: 1px solid var(--border); background: var(--bg-white); }
.breadcrumb-inner { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--text-light); }
.breadcrumb-inner a { color: var(--text-light); transition: var(--transition); }
.breadcrumb-inner a:hover { color: var(--accent); }
.breadcrumb-inner .sep { color: #cbd5e0; }
.breadcrumb-inner .current { color: var(--text); font-weight: 500; }

/* ===== 文章主体 ===== */
.article-main { padding: var(--section-space) 0 60px; }
.article-main-left { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 44px 44px 30px; }
.article-body { line-height: 1.9; font-size: 1.06rem; }
.article-body h2 {
    font-size: 1.55rem; font-weight: 700; margin: 2.2rem 0 1rem;
    color: var(--primary); padding-left: 16px; border-left: 4px solid var(--accent); line-height: 1.4;
}
.article-body h3 { font-size: 1.25rem; font-weight: 700; margin: 1.8rem 0 .8rem; color: var(--primary); }
.article-body p { margin-bottom: 1.3rem; color: #374151; }
.article-body img { max-width: 100%; border-radius: var(--radius); margin: 1.5rem 0; box-shadow: var(--shadow); }
.article-body ul, .article-body ol { padding-left: 1.4rem; margin-bottom: 1.3rem; }
.article-body li { margin-bottom: .4rem; }
.article-body blockquote {
    border-left: 4px solid var(--accent); background: #fffbeb;
    padding: 1.2rem 1.5rem; border-radius: 0 var(--radius) var(--radius) 0;
    margin: 1.8rem 0; color: #8a6d1a; font-style: italic;
}
.article-body a { color: var(--accent); font-weight: 500; }
.article-body a:hover { text-decoration: underline; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 12px 15px; text-align: left; }
.article-body th { background: var(--bg); font-weight: 600; }
.not-found { padding: 60px 40px; text-align: center; }
.not-found h2 { font-size: 1.8rem; font-weight: 800; color: var(--primary); margin-bottom: 14px; }
.not-found p { color: var(--text-light); margin-bottom: 24px; }

/* ===== 侧边栏 ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--bg-white); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow); }
.sidebar-card h3 {
    font-size: 1.1rem; font-weight: 700; color: var(--primary);
    padding-bottom: 14px; margin-bottom: 18px; border-bottom: 1px solid var(--border);
    position: relative;
}
.sidebar-card h3::after { content: ''; position: absolute; bottom: -1px; left: 0; width: 40px; height: 3px; border-radius: 3px; background: var(--accent); }
.sidebar-card.hot-card { background: linear-gradient(135deg, var(--primary), var(--primary-light)); border: none; }
.sidebar-card.hot-card h3 { color: #fff; border-color: rgba(255,255,255,.2); }
.sidebar-card.hot-card p { color: rgba(255,255,255,.7); font-size: .9rem; margin-bottom: 18px; }
.sidebar-post { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--border); transition: var(--transition); }
.sidebar-post:last-child { border-bottom: none; }
.sidebar-post:hover { padding-left: 6px; }
.sidebar-post .num { width: 26px; height: 26px; border-radius: 8px; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: .8rem; font-weight: 700; color: var(--text-light); flex-shrink: 0; }
.sidebar-post:nth-child(1) .num { background: var(--accent); color: #0a1420; }
.sidebar-post:nth-child(2) .num { background: var(--accent); color: #0a1420; }
.sidebar-post:nth-child(3) .num { background: #ffe5b4; color: #8a6d1a; }
.sidebar-post .text { font-size: .9rem; color: var(--text); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-post:hover .text { color: var(--accent); }
.sidebar-cats { list-style: none; padding: 0; margin: 0; }
.sidebar-cats li { margin-bottom: 10px; }
.sidebar-cats a { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-radius: 12px; background: var(--bg); color: var(--text); font-size: .95rem; transition: var(--transition); }
.sidebar-cats a:hover { background: rgba(245,166,35,.15); color: var(--accent); transform: translateX(4px); }
.sidebar-cats a i { color: var(--accent); font-size: .8rem; }

/* ===== 标签分享 ===== */
.article-tags { padding: 0 0 20px; }
.article-tags .inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.tags-wrap { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item { display: inline-block; padding: 6px 16px; border-radius: 30px; background: rgba(245,166,35,.1); color: #8a6d1a; font-size: .85rem; font-weight: 500; transition: var(--transition); }
.tag-item:hover { background: var(--accent); color: #0a1420; }
.share-wrap { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--text-light); }
.share-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; color: var(--text-light); transition: var(--transition); }
.share-btn:hover { background: var(--accent); color: #0a1420; transform: translateY(-2px); }
.share-btn:focus-visible { outline: 3px solid rgba(245,166,35,.4); outline-offset: 2px; }

/* ===== 相关推荐 ===== */
.related-section { padding: 60px 0 80px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; }
.section-title { font-size: 1.8rem; font-weight: 800; color: var(--primary); margin-bottom: 0; position: relative; }
.section-title::after { content: ''; display: block; width: 48px; height: 4px; background: var(--accent); border-radius: 4px; margin-top: 8px; }
.section-more { color: var(--text-light); font-size: .9rem; display: flex; align-items: center; gap: 6px; transition: var(--transition); }
.section-more:hover { color: var(--accent); }
.related-card {
    background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow); border: none; height: 100%; transition: var(--transition);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.related-card .card-img-wrap { height: 200px; overflow: hidden; position: relative; }
.related-card .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .card-img-wrap img { transform: scale(1.08); }
.related-card .card-img-wrap::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.2));
}
.related-card .card-body { padding: 22px; }
.related-card .card-cat { display: inline-block; font-size: .8rem; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.related-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--primary); line-height: 1.4; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card h3 a { color: inherit; transition: var(--transition); }
.related-card h3 a:hover { color: var(--accent); }
.related-card .card-date { font-size: .83rem; color: var(--text-light); }

/* ===== CTA ===== */
.cta-section { padding: 70px 0; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); position: relative; overflow: hidden; }
.cta-section::before {
    content: ''; position: absolute; right: -80px; top: -80px; width: 300px; height: 300px; border-radius: 50%;
    background: rgba(245,166,35,.15); filter: blur(60px);
}
.cta-content { text-align: center; position: relative; z-index: 2; }
.cta-content h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 14px; }
.cta-content p { color: rgba(255,255,255,.8); font-size: 1.05rem; margin-bottom: 28px; }
.cta-content .btn i { font-size: .9rem; }

/* ===== 页脚 ===== */
.site-footer { background: var(--bg-dark); color: #cbd5e1; padding: 70px 0 0; }
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
    padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-text { font-size: 1.4rem; font-weight: 800; color: #fff; }
.footer-brand .brand-text span { color: var(--accent); }
.footer-brand p { margin-top: 16px; max-width: 350px; font-size: .9rem; line-height: 1.7; color: rgba(255,255,255,.7); }
.footer-links h4, .footer-contact h4 {
    font-size: 1.05rem; color: #fff; font-weight: 700;
    margin-bottom: 18px; padding-bottom: 10px; border-bottom: 2px solid var(--accent); display: inline-block;
}
.footer-links a { display: block; color: rgba(255,255,255,.7); font-size: .9rem; margin-bottom: 12px; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact p { font-size: .9rem; color: rgba(255,255,255,.7); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--accent); width: 18px; text-align: center; }
.footer-bottom { padding: 20px 0; text-align: center; font-size: .85rem; color: rgba(255,255,255,.5); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    :root { --section-space: 60px; }
    .article-hero h1 { font-size: 2.1rem; }
    .article-main-left { padding: 30px 26px 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
    .site-header { height: auto; }
    .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; }
    .brand { margin-right: auto; }
    .nav-toggle { display: flex; }
    .main-nav {
        display: none; flex-basis: 100%; width: 100%;
        padding: 12px 0 4px; order: 4;
    }
    .main-nav.open { display: block; }
    .nav-list { flex-direction: column; gap: 4px; }
    .nav-link { padding: 12px 16px; }
    .nav-link.active::after { display: none; }
    .header-search { order: 3; margin-left: 0; }
    .search-input { width: 120px; }
    .search-input:focus { width: 150px; }
    .article-hero { padding: 60px 0 40px; }
    .article-hero h1 { font-size: 1.6rem; }
    .article-main { padding: 40px 0 30px; }
    .article-main-left { padding: 24px 18px 14px; border-radius: 16px; }
    .article-body { font-size: 1rem; }
    .article-body h2 { font-size: 1.3rem; }
    .article-tags .inner { flex-direction: column; align-items: flex-start; }
    .related-card .card-img-wrap { height: 170px; }
    .cta-content h2 { font-size: 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 520px) {
    :root { --section-space: 45px; }
    .container { padding-left: 16px; padding-right: 16px; }
    .brand-text { font-size: 1.2rem; }
    .search-input { width: 90px; }
    .search-input:focus { width: 110px; }
    .article-hero h1 { font-size: 1.35rem; }
    .article-hero .meta-info { gap: 10px; font-size: .82rem; }
    .breadcrumb-inner { flex-wrap: wrap; }
    .article-main-left { padding: 18px 14px 10px; }
    .article-body { font-size: .96rem; }
    .article-body blockquote { font-size: .95rem; padding: 12px 16px; }
    .section-title { font-size: 1.4rem; }
    .related-card .card-img-wrap { height: 140px; }
    .cta-section { padding: 50px 0; }
    .cta-content h2 { font-size: 1.3rem; }
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
    --primary: #1e3a8a;
    --primary-dark: #172554;
    --primary-light: #3b82f6;
    --accent: #f97316;
    --accent-dark: #ea580c;
    --accent-light: #fdba74;
    --bg: #f8fafc;
    --bg-alt: #f1f5f9;
    --white: #ffffff;
    --dark: #0f172a;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --transition: 0.25s ease;
}

/* ============ Reset 基础 ============ */
*, *::before, *::after {
    box-sizing: border-box;
}
body {
    font-family: var(--font-family);
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}
a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--accent);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}
button {
    cursor: pointer;
    border: none;
    background: none;
}

/* ============ 容器 ============ */
.container {
    max-width: 1240px;
    padding-left: 20px;
    padding-right: 20px;
}

/* ============ 导航 ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
    transition: box-shadow var(--transition);
}
.site-header.scrolled {
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: nowrap;
    height: 72px;
    gap: 20px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.25);
}
.brand-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.brand-text span {
    color: var(--accent);
}
.main-nav {
    display: flex;
    align-items: center;
}
.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text);
    border-radius: 999px;
    transition: all var(--transition);
    position: relative;
}
.nav-link:hover {
    color: var(--primary);
    background: rgba(30, 58, 138, 0.06);
}
.nav-link.active {
    color: var(--primary-dark);
    background: rgba(30, 58, 138, 0.1);
}
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 4px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}
.header-search {
    display: flex;
    align-items: center;
    background: var(--bg-alt);
    border-radius: 999px;
    padding: 6px 6px 6px 16px;
    border: 1px solid transparent;
    transition: all var(--transition);
    width: 220px;
}
.header-search:focus-within {
    border-color: var(--primary-light);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}
.search-input {
    border: none;
    outline: none;
    background: transparent;
    font-size: 14px;
    color: var(--text);
    width: 100%;
    padding: 4px 0;
}
.search-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    border-radius: 50%;
    transition: all var(--transition);
    flex-shrink: 0;
}
.search-btn:hover {
    background: var(--accent);
    transform: scale(1.06);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-alt);
}
.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============ Hero ============ */
.page-hero {
    position: relative;
    padding: 100px 0 90px;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 58, 138, 0.88) 45%, rgba(249, 115, 22, 0.55) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: #fff;
    border-bottom: 4px solid var(--accent);
}
.page-hero .container {
    position: relative;
    z-index: 2;
}
.hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 18px;
}
.hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition);
}
.hero-breadcrumb a:hover {
    color: var(--accent-light);
}
.hero-breadcrumb .sep {
    opacity: 0.5;
}
.hero-title {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 18px;
    letter-spacing: -0.5px;
    max-width: 720px;
}
.hero-subtitle {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    max-width: 680px;
    margin-bottom: 34px;
}
.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.btn-brand-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff !important;
    font-weight: 700;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: 999px;
    transition: all var(--transition);
    border: none;
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.35);
}
.btn-brand-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(249, 115, 22, 0.45);
}
.btn-brand-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    padding: 13px 30px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all var(--transition);
}
.btn-brand-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* ============ Section 公共 ============ */
.section {
    padding: 92px 0;
}
.section-alt {
    background: var(--bg);
}
.section-white {
    background: var(--white);
}
.section-head {
    max-width: 720px;
    margin: 0 auto 56px;
    text-align: center;
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    background: rgba(249, 115, 22, 0.1);
    padding: 6px 16px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.section-title {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--dark);
    margin: 0 0 14px;
    letter-spacing: -0.5px;
}
.section-desc {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
    margin: 0;
}

/* ============ 统计卡 ============ */
.stats-section {
    padding: 80px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-card {
    text-align: center;
    padding: 36px 20px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.stat-number {
    font-size: 40px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
    margin-bottom: 8px;
}
.stat-number span {
    color: var(--accent);
}
.stat-label {
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============ 玩法卡片 ============ */
.features-section {
    background: var(--bg-alt);
}
.features-grid .card-wrap {
    margin-bottom: 24px;
}
.feature-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    height: 100%;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 44px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 0 4px 4px 0;
    transition: width var(--transition);
}
.feature-card:hover::before {
    width: 80px;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary);
    background: rgba(30, 58, 138, 0.08);
    border-radius: 16px;
    margin-bottom: 20px;
    transition: all var(--transition);
}
.feature-card:hover .feature-icon {
    background: var(--accent);
    color: #fff;
    transform: scale(1.05);
}
.feature-title {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}
.feature-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 18px;
    flex-grow: 1;
}
.feature-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition);
}
.feature-link:hover {
    gap: 10px;
    color: var(--accent);
}

/* ============ 流程步骤 ============ */
.steps-section {
    position: relative;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.96), rgba(23, 37, 84, 0.94)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
}
.steps-section .section-title {
    color: #fff;
}
.steps-section .section-desc {
    color: rgba(255, 255, 255, 0.75);
}
.steps-section .section-tag {
    background: rgba(249, 115, 22, 0.18);
    color: var(--accent-light);
}
.step-card {
    position: relative;
    padding: 36px 28px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    height: 100%;
    text-align: center;
    backdrop-filter: blur(6px);
    transition: all var(--transition);
}
.step-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}
.step-number {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.4);
}
.step-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #fff;
}
.step-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin: 0;
}

/* ============ 文章卡片 ============ */
.articles-section {
    background: var(--bg);
}
.article-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.article-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--bg-alt);
}
.article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.article-card:hover .article-thumb img {
    transform: scale(1.06);
}
.article-tag {
    position: absolute;
    left: 14px;
    top: 14px;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(249, 115, 22, 0.35);
}
.article-body {
    padding: 24px 20px 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.article-title {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--dark);
    margin-bottom: 10px;
    transition: color var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-card:hover .article-title {
    color: var(--primary);
}
.article-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}
.article-meta i {
    color: var(--accent);
    margin-right: 4px;
}
.article-meta .views {
    margin-left: auto;
}

/* ============ FAQ ============ */
.faq-section {
    background: var(--white);
}
.faq-wrapper {
    max-width: 820px;
    margin: 0 auto;
}
.faq-wrapper .accordion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md) !important;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition);
}
.faq-wrapper .accordion-item:hover {
    box-shadow: var(--shadow-md);
}
.faq-wrapper .accordion-header {
    margin: 0;
}
.faq-wrapper .accordion-button {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    background: var(--white);
    padding: 18px 22px;
    box-shadow: none !important;
    border: none;
    line-height: 1.5;
}
.faq-wrapper .accordion-button:not(.collapsed) {
    color: var(--primary);
    background: rgba(30, 58, 138, 0.03);
}
.faq-wrapper .accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231e3a8a'%3e%3cpath fill-rule='evenodd' d='M8 4a1 1 0 0 1 1 1v2h2a1 1 0 1 1 0 2H9v2a1 1 0 1 1-2 0V9H5a1 1 0 1 1 0-2h2V5a1 1 0 0 1 1-1z'/%3e%3c/svg%3e");
    color: var(--primary);
}
.faq-wrapper .accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f97316'%3e%3cpath fill-rule='evenodd' d='M4 8a1 1 0 0 1 1-1h6a1 1 0 1 1 0 2H5a1 1 0 0 1-1-1z'/%3e%3c/svg%3e");
}
.faq-wrapper .accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}
.faq-wrapper .accordion-body {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.85;
    padding: 0 22px 22px;
}

/* ============ CTA ============ */
.cta-section {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.94), rgba(15, 23, 42, 0.96)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    color: #fff;
    text-align: center;
}
.cta-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}
.cta-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 680px;
    margin: 0 auto 36px;
    line-height: 1.8;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-accent-large {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff !important;
    font-weight: 700;
    font-size: 17px;
    padding: 16px 38px;
    border-radius: 999px;
    transition: all var(--transition);
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45);
}
.btn-accent-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(249, 115, 22, 0.55);
}
.btn-ghost-light {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 2px solid rgba(255, 255, 255, 0.55);
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    padding: 15px 34px;
    border-radius: 999px;
    transition: all var(--transition);
}
.btn-ghost-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

/* ============ 页脚 ============ */
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 72px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand-text {
    color: #fff;
    font-size: 24px;
    display: inline-block;
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin: 0;
    color: rgba(255, 255, 255, 0.6);
}
.footer-links h4,
.footer-contact h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}
.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    padding: 5px 0;
    transition: all var(--transition);
}
.footer-links a:hover {
    color: var(--accent);
    padding-left: 6px;
}
.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
}
.footer-contact i {
    color: var(--accent);
    width: 18px;
    text-align: center;
}
.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ============ 响应式 ============ */
@media (max-width: 992px) {
    .header-search {
        width: 180px;
    }
    .nav-link {
        padding: 8px 14px;
        font-size: 14px;
    }
    .hero-title {
        font-size: 36px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .section-title {
        font-size: 30px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 64px;
    }
    .nav-toggle {
        display: flex;
    }
    .main-nav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        padding: 12px 20px;
        display: none;
        flex-direction: column;
        align-items: flex-start;
    }
    .main-nav.open {
        display: flex;
    }
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 4px;
    }
    .nav-link {
        padding: 12px 16px;
        width: 100%;
        border-radius: var(--radius-sm);
    }
    .nav-link.active::after {
        display: none;
    }
    .header-search {
        width: 160px;
    }
    .page-hero {
        padding: 70px 0 60px;
    }
    .hero-title {
        font-size: 30px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .section {
        padding: 64px 0;
    }
    .features-grid .card-wrap {
        margin-bottom: 16px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 520px) {
    .header-search {
        width: 130px;
    }
    .brand-text {
        font-size: 18px;
    }
    .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 16px;
    }
    .hero-title {
        font-size: 26px;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-brand-primary,
    .btn-brand-outline {
        justify-content: center;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    .stat-number {
        font-size: 30px;
    }
    .section-title {
        font-size: 24px;
    }
    .cta-title {
        font-size: 26px;
    }
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-accent-large,
    .btn-ghost-light {
        justify-content: center;
    }
}