/* roulang page: index */
:root {
  --primary: #4f6ef7;
  --primary-dark: #3453d1;
  --primary-light: #eef1fe;
  --accent: #f5a524;
  --accent-light: #fff4d8;
  --bg-main: #f6f7fb;
  --bg-white: #ffffff;
  --bg-dark: #131a2e;
  --text-main: #172033;
  --text-soft: #5b6b7f;
  --text-light: #8e9aad;
  --border: #e5e9f0;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-xs: 0 1px 2px rgba(23,32,51,.05);
  --shadow-sm: 0 3px 10px rgba(23,32,51,.07);
  --shadow-md: 0 8px 24px rgba(23,32,51,.09);
  --shadow-lg: 0 16px 40px rgba(23,32,51,.13);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --transition: .28s cubic-bezier(.4,0,.2,1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg-main); color: var(--text-main); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 92px 0; }
.section-alt { background: var(--bg-white); }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-header { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-tag { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; letter-spacing: .5px; padding: 6px 16px; border-radius: 100px; margin-bottom: 16px; }
.section-header h2 { font-size: 34px; font-weight: 700; line-height: 1.3; margin-bottom: 14px; color: var(--text-main); }
.section-header p { color: var(--text-soft); font-size: 16px; line-height: 1.7; }
/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 100px; font-size: 15px; font-weight: 600; line-height: 1.2; border: 2px solid transparent; transition: all var(--transition); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(79,110,247,.35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(79,110,247,.45); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(79,110,247,.3); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-sm { padding: 8px 20px; font-size: 14px; }
/* 徽章与标签 */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 4px 12px; background: var(--primary-light); color: var(--primary); border-radius: 100px; font-size: 12px; font-weight: 600; }
.badge-accent { background: var(--accent-light); color: #d98a00; }
.tag { display: inline-block; padding: 3px 10px; border: 1px solid var(--border); border-radius: 30px; font-size: 12px; color: var(--text-soft); background: var(--bg-white); transition: all var(--transition); }
.tag:hover { border-color: var(--primary); color: var(--primary); }
/* 顶部导航 */
.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; box-shadow: var(--shadow-xs); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 70px; gap: 20px; }
.logo a { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), #7b9dff); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 12px rgba(79,110,247,.3); }
.logo-text { font-size: 19px; font-weight: 800; color: var(--text-main); letter-spacing: -.3px; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { padding: 8px 18px; border-radius: 100px; font-size: 15px; font-weight: 500; color: var(--text-soft); transition: all var(--transition); }
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.header-tools { display: flex; align-items: center; gap: 14px; }
.search-box { position: relative; display: flex; align-items: center; }
.search-box input { width: 220px; height: 40px; border: 1px solid var(--border); border-radius: 100px; padding: 0 16px 0 38px; font-size: 14px; background: var(--bg-main); transition: all var(--transition); color: var(--text-main); }
.search-box input:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(79,110,247,.12); width: 260px; }
.search-box i { position: absolute; left: 14px; color: var(--text-light); font-size: 14px; }
.nav-toggle { display: none; background: none; border: 0; width: 40px; height: 40px; border-radius: 8px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.nav-toggle span { width: 20px; height: 2px; background: var(--text-main); border-radius: 2px; transition: all .3s; }
.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; padding: 130px 0 150px; background-size: cover; background-position: center; color: #fff; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(11,18,38,.88) 0%, rgba(19,26,46,.72) 45%, rgba(19,26,46,.45) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.14); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,.22); padding: 8px 20px; border-radius: 100px; font-size: 14px; font-weight: 500; margin-bottom: 24px; }
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: 52px; font-weight: 800; line-height: 1.18; margin-bottom: 14px; letter-spacing: -.5px; }
.hero-sub { font-size: 22px; font-weight: 600; margin-bottom: 16px; color: rgba(255,255,255,.92); }
.hero-desc { font-size: 16px; color: rgba(255,255,255,.78); line-height: 1.8; max-width: 600px; margin-bottom: 38px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
/* 特色卡片 */
.features-grid { row-gap: 28px; }
.feature-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 34px 28px; height: 100%; transition: all var(--transition); position: relative; overflow: hidden; }
.feature-card::after { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), #7b9dff); opacity: 0; transition: opacity var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::after { opacity: 1; }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; background: var(--primary-light); color: var(--primary); margin-bottom: 22px; transition: all var(--transition); }
.feature-card:hover .feature-icon { background: var(--primary); color: #fff; transform: scale(1.05); }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-soft); line-height: 1.7; }
/* 分类卡片 */
.category-card { border-radius: var(--radius-md); overflow: hidden; background: var(--bg-white); box-shadow: var(--shadow-sm); transition: all var(--transition); height: 100%; border: 1px solid var(--border); }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card img { height: 200px; object-fit: cover; width: 100%; }
.category-body { padding: 28px; }
.category-body h3 { font-size: 21px; margin: 12px 0 10px; }
.category-body p { color: var(--text-soft); font-size: 14px; margin-bottom: 18px; line-height: 1.7; }
/* 资讯列表 */
.news-list { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 18px; }
.news-item { display: flex; flex-direction: column; gap: 8px; background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 26px 30px; transition: all var(--transition); }
.news-item:hover { box-shadow: var(--shadow-md); border-color: transparent; transform: translateX(4px); }
.news-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.news-date { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 5px; }
.news-item h3 { font-size: 18px; font-weight: 700; }
.news-item h3 a:hover { color: var(--primary); }
.news-item p { font-size: 14px; color: var(--text-soft); line-height: 1.7; }
.empty-tip { text-align: center; color: var(--text-soft); background: var(--bg-white); border: 1px dashed var(--border); padding: 60px 20px; border-radius: var(--radius-md); font-size: 15px; }
/* 统计区 */
.stats-section { background-size: cover; background-position: center; position: relative; padding: 100px 0; }
.stats-section::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(19,26,46,.93), rgba(52,83,209,.82)); }
.stats-section .section-header { position: relative; z-index: 2; }
.stats-section .section-header h2 { color: #fff; }
.stats-section .section-header p { color: rgba(255,255,255,.8); }
.stats-grid { position: relative; z-index: 2; row-gap: 28px; text-align: center; }
.stat-card { padding: 24px 16px; }
.stat-num { font-size: 44px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 6px; }
.stat-num span { color: var(--accent); }
.stat-label { color: rgba(255,255,255,.72); font-size: 15px; }
/* 流程 */
.process-steps { counter-reset: step; row-gap: 26px; }
.process-step { position: relative; background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 32px 28px; height: 100%; transition: all var(--transition); }
.process-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step-num { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), #7b9dff); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; margin-bottom: 18px; box-shadow: 0 4px 12px rgba(79,110,247,.35); }
.process-step h3 { font-size: 18px; margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--text-soft); line-height: 1.7; }
/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; transition: box-shadow var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item summary { list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 22px 26px; cursor: pointer; font-weight: 600; font-size: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "\f107"; font-family: "Font Awesome 6 Free"; font-weight: 900; color: var(--primary); transition: transform var(--transition); }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-answer { padding: 0 26px 22px; color: var(--text-soft); font-size: 14px; line-height: 1.8; }
/* CTA */
.cta-section { padding: 100px 0; position: relative; background: linear-gradient(135deg, var(--primary), #3b5bdb); border-radius: 32px; margin-top: 30px; }
.cta-box { text-align: center; color: #fff; padding: 0 24px; }
.cta-box h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,.85); max-width: 560px; margin: 0 auto 32px; line-height: 1.8; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
/* 页脚 */
.site-footer { background: var(--bg-dark); color: #aab3c5; margin-top: 100px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; padding: 64px 0 40px; }
.footer-brand .footer-logo { font-size: 24px; font-weight: 800; color: #fff; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #8892a6; max-width: 360px; }
.footer-links h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-links a { display: block; color: #8892a6; padding: 6px 0; font-size: 14px; }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #6b7688; }
.footer-bottom a { color: #8892a6; }
.footer-bottom a:hover { color: var(--primary); }
/* 响应式 */
@media (max-width: 1024px) {
  .header-tools .search-box { display: none; }
  .hero h1 { font-size: 42px; }
  .section { padding: 72px 0; }
}
@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; gap: 4px; box-shadow: var(--shadow-lg); border-bottom: 1px solid var(--border); }
  .main-nav.open { display: flex; }
  .nav-link { width: 100%; padding: 12px 18px; }
  .nav-toggle { display: flex; }
  .header-tools .btn { display: none; }
  .hero { padding: 100px 0 120px; }
  .hero h1 { font-size: 36px; }
  .hero-sub { font-size: 17px; }
  .section-header h2 { font-size: 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .stats-section { padding: 80px 0; }
  .cta-box h2 { font-size: 28px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 14px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .news-item { padding: 20px; }
  .section { padding: 56px 0; }
  .section-header { margin-bottom: 36px; }
}

/* roulang page: category1 */
:root {
            --primary: #4f6cf7;
            --primary-deep: #3451c6;
            --primary-soft: #eef1fe;
            --accent: #ffb547;
            --accent-soft: #fff7e8;
            --success: #12b981;
            --bg-page: #f5f7fc;
            --surface: #ffffff;
            --surface-alt: #f0f3fa;
            --text-main: #1b2540;
            --text-weak: #64748f;
            --text-faint: #94a3b8;
            --text-invert: #ffffff;
            --border: #e4e9f2;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-soft: 0 6px 24px rgba(27, 37, 64, 0.07);
            --shadow-hover: 0 16px 42px rgba(79, 108, 247, 0.14);
            --shadow-nav: 0 2px 20px rgba(27, 37, 64, 0.05);
            --nav-height: 74px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

        .section-alt {
            background: var(--surface-alt);
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 34px;
            line-height: 1.25;
            font-weight: 800;
            margin: 0 0 14px;
            letter-spacing: -0.5px;
            color: var(--text-main);
        }

        .section-head p {
            color: var(--text-weak);
            font-size: 16px;
            margin: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 999px;
            border: 1px solid transparent;
            transition: all var(--transition);
            line-height: 1.2;
            white-space: nowrap;
        }

        .btn:focus,
        .btn-ghost:focus,
        .nav-link:focus,
        .faq-question:focus {
            outline: 3px solid rgba(79, 108, 247, 0.35);
            outline-offset: 2px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-deep));
            color: #fff;
            box-shadow: 0 6px 20px rgba(79, 108, 247, 0.28);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(79, 108, 247, 0.38);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border-color: rgba(79, 108, 247, 0.35);
        }

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

        .btn-light {
            background: #fff;
            color: var(--primary-deep);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.16);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.22);
            color: var(--primary-deep);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 15px 38px;
            font-size: 17px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.3px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }

        .logo a {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #7a8ff7);
            color: #fff;
            font-size: 15px;
            box-shadow: 0 4px 14px rgba(79, 108, 247, 0.3);
        }

        .logo-text {
            letter-spacing: -0.2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-weak);
            transition: all var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 3px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 999px;
            background: var(--primary);
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--surface-alt);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 16px;
            transition: all var(--transition);
            width: 180px;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(79, 108, 247, 0.12);
            width: 220px;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            flex: 1;
            min-width: 0;
        }

        .search-box input::placeholder {
            color: var(--text-faint);
        }

        .search-box i {
            color: var(--text-faint);
            font-size: 13px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            border-radius: 8px;
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 99px;
            transition: all 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);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 110px 0 96px;
            background-image: linear-gradient(120deg, rgba(27, 37, 64, 0.88), rgba(52, 81, 198, 0.72)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 7px 20px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            backdrop-filter: blur(6px);
            margin-bottom: 22px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: 46px;
            line-height: 1.16;
            font-weight: 800;
            margin: 0 0 18px;
            letter-spacing: -1px;
        }

        .page-hero p.lead {
            font-size: 17px;
            max-width: 620px;
            margin: 0 auto 32px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-actions .btn-outline {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .hero-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: #fff;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 40px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb i {
            font-size: 10px;
            align-self: center;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== Overview Section ===== */
        .overview-section {
            padding: 96px 0;
            background: var(--surface);
        }

        .overview-media {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .overview-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            display: block;
        }

        .overview-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(27, 37, 64, 0.24), transparent 60%);
            pointer-events: none;
        }

        .overview-content .section-label {
            margin-bottom: 12px;
        }

        .overview-content h2 {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin: 0 0 16px;
        }

        .overview-content p {
            color: var(--text-weak);
            font-size: 16px;
            margin-bottom: 20px;
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 18px;
        }

        .check-list li {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 0;
        }

        .check-list li i {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(18, 185, 129, 0.14);
            color: var(--success);
            font-size: 11px;
            flex-shrink: 0;
        }

        /* ===== Process Section ===== */
        .process-section {
            padding: 96px 0;
            background: var(--bg-page);
        }

        .process-grid .cell {
            margin-bottom: 24px;
        }

        .process-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            height: 100%;
            position: relative;
            overflow: hidden;
            transition: all var(--transition);
        }

        .process-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #8ba0ff);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .process-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .process-card:hover::before {
            opacity: 1;
        }

        .process-num {
            font-size: 40px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), #8ba0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
            margin-bottom: 18px;
        }

        .process-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .process-card p {
            color: var(--text-weak);
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }

        .process-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .process-link:hover {
            gap: 10px;
        }

        /* ===== Features Section ===== */
        .features-section {
            padding: 96px 0;
            background: var(--surface);
        }

        .feature-card {
            background: linear-gradient(160deg, #fbfcff, #eef1fe);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            text-align: center;
            height: 100%;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(79, 108, 247, 0.06);
            bottom: -40px;
            right: -40px;
            transition: all var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .feature-card:hover::after {
            transform: scale(1.5);
            background: rgba(79, 108, 247, 0.1);
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary), #8ba0ff);
            color: #fff;
            font-size: 22px;
            box-shadow: 0 8px 22px rgba(79, 108, 247, 0.3);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .feature-card p {
            color: var(--text-weak);
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }

        .features-grid .cell {
            margin-bottom: 24px;
        }

        /* ===== Stats Section ===== */
        .stats-section {
            padding: 80px 0;
            background-image: linear-gradient(135deg, #3451c6, #4f6cf7);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.07);
            top: -140px;
            right: -80px;
        }

        .stats-section::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            bottom: -80px;
            left: 40px;
        }

        .stat-item {
            text-align: center;
            padding: 12px 16px;
            position: relative;
            z-index: 1;
        }

        .stat-num {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -1px;
            margin-bottom: 8px;
        }

        .stat-num span {
            font-size: 22px;
            margin-left: 2px;
            font-weight: 600;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            letter-spacing: 1px;
        }

        /* ===== Article Section ===== */
        .article-section {
            padding: 96px 0;
            background: var(--bg-page);
        }

        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 26px 22px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
        }

        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .article-card .badge {
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 10px;
        }

        .article-card p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.7;
            margin: 0 0 18px;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-faint);
        }

        .article-meta i {
            margin-right: 5px;
        }

        .read-more {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition);
        }

        .read-more:hover {
            gap: 9px;
        }

        .articles-grid .cell {
            margin-bottom: 24px;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 96px 0;
            background: var(--surface);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            background: var(--surface);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item.open {
            border-color: rgba(79, 108, 247, 0.4);
            box-shadow: var(--shadow-soft);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 19px 22px;
            background: none;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-faint);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 110px 0;
            background-image: linear-gradient(120deg, rgba(27, 37, 64, 0.92), rgba(52, 81, 198, 0.8)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
            position: relative;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-card {
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-card h2 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin: 0 0 16px;
        }

        .cta-card p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin: 0 0 32px;
        }

        .cta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.28);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .cta-badge i {
            color: var(--accent);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #151e33;
            color: #c5cede;
            padding: 60px 0 28px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.09);
            margin-bottom: 26px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
            margin: 0;
            color: #8d99b4;
        }

        .footer-links h4 {
            font-size: 15px;
            color: #fff;
            margin: 0 0 14px;
            font-weight: 700;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            color: #8d99b4;
            padding: 4px 0;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px 20px;
            font-size: 13px;
            color: #64708a;
        }

        .footer-bottom a {
            color: #8d99b4;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }

            .page-hero {
                padding: 90px 0 76px;
            }

            .page-hero h1 {
                font-size: 38px;
            }

            .overview-section,
            .process-section,
            .features-section,
            .article-section,
            .faq-section {
                padding: 76px 0;
            }

            .search-box {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                gap: 12px;
            }

            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 30px rgba(27, 37, 64, 0.1);
                padding: 16px 24px;
                gap: 6px;
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-link {
                display: block;
                text-align: center;
                padding: 12px 16px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .header-tools .btn {
                display: none;
            }

            .overview-media img {
                height: 320px;
            }

            .section-head h2,
            .cta-card h2 {
                font-size: 27px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .page-hero p.lead {
                font-size: 15px;
            }

            .stat-num {
                font-size: 34px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .process-grid .cell,
            .features-grid .cell,
            .articles-grid .cell {
                margin-bottom: 18px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .logo-text {
                font-size: 16px;
            }

            .section {
                padding: 60px 0;
            }

            .page-hero {
                padding: 70px 0 60px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .check-list {
                grid-template-columns: 1fr;
            }

            .overview-media img {
                height: 240px;
            }

            .stat-num {
                font-size: 28px;
            }

            .cta-card h2 {
                font-size: 23px;
            }

            .cta-card .btn {
                width: 100%;
            }

            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

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

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
    --primary:#2563eb;
    --primary-dark:#1d4ed8;
    --primary-light:#dbeafe;
    --accent:#06b6d4;
    --accent-light:#cffafe;
    --dark:#0f172a;
    --bg:#f8fafc;
    --white:#ffffff;
    --text:#334155;
    --text-light:#64748b;
    --border:#e2e8f0;
    --radius:16px;
    --radius-sm:8px;
    --radius-lg:24px;
    --shadow:0 4px 20px rgba(2,12,27,.08);
    --shadow-lg:0 12px 44px rgba(2,12,27,.14);
    --space:24px;
    --gradient:linear-gradient(135deg,#1e40af 0%,#2563eb 55%,#06b6d4 100%);
}

/* ============ 基础 Reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.7;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
p{margin:0 0 16px;}
a{text-decoration:none;color:inherit;transition:color .2s;}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}

/* ============ 容器 ============ */
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section-main{padding:88px 0;}

/* ============ 通用板式 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head.center{flex-direction:column;align-items:center;text-align:center;}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--primary);background:var(--primary-light);padding:6px 16px;border-radius:999px;margin-bottom:12px;}
.section-head h2{font-size:32px;line-height:1.3;margin:0;color:var(--dark);font-weight:800;}
.link-more{font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:8px;transition:gap .2s;}
.link-more:hover{gap:12px;color:var(--primary-dark);}

/* ============ 按钮 ============ */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 32px;border-radius:12px;border:none;font-size:15px;font-weight:700;
    cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s;line-height:1.4;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.25);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(37,99,235,.3);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 8px rgba(37,99,235,.25);}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.15);color:#fff;border:1.5px solid rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.25);color:#fff;transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:#f1f5f9;color:var(--primary-dark);transform:translateY(-2px);}
.btn-sm{padding:8px 18px;font-size:14px;border-radius:999px;}
.btn-lg{padding:16px 40px;font-size:16px;}
.btn-block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px;background:var(--primary-light);color:var(--primary);}
.badge-light{background:rgba(255,255,255,.18);color:#fff;backdrop-filter:blur(4px);}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;background:#f1f5f9;color:var(--text-light);}
.tag i{color:var(--accent);}

/* ============ 导航头部 ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px;}
.logo{display:flex;align-items:center;flex-shrink:0;}
.logo a{display:flex;align-items:center;gap:10px;}
.logo-icon{width:38px;height:38px;background:var(--gradient);color:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 4px 12px rgba(37,99,235,.35);}
.logo-text{font-size:20px;font-weight:800;color:var(--dark);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:10px;}
.nav-link{padding:9px 18px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text);transition:all .2s;}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.3);}
.header-tools{display:flex;align-items:center;gap:14px;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box input{width:220px;height:40px;padding:0 16px 0 40px;border-radius:999px;border:1.5px solid var(--border);background:#f1f5f9;font-size:14px;transition:border .2s,background .2s,box-shadow .2s;}
.search-box input:focus{outline:none;border-color:var(--primary);background:var(--white);box-shadow:0 0 0 4px rgba(37,99,235,.1);}
.search-box i{position:absolute;left:14px;color:var(--text-light);font-size:14px;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:10px;background:transparent;border:1.5px solid var(--border);border-radius:10px;cursor:pointer;}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--dark);border-radius:2px;transition:transform .3s,opacity .3s;}
.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);}

/* ============ 首屏 Banner ============ */
.article-banner{position:relative;padding:96px 0 130px;color:#fff;background:linear-gradient(135deg,rgba(15,23,42,.66) 0%,rgba(29,78,216,.74) 70%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;}
.article-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 25% 35%,rgba(6,182,212,.35) 0%,transparent 60%);}
.article-banner .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.75);margin-bottom:32px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.75);transition:color .2s;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb i{font-size:11px;color:rgba(255,255,255,.4);}
.breadcrumb span{color:#fff;font-weight:600;max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-banner-content{max-width:820px;}
.article-banner-content h1{font-size:42px;line-height:1.25;margin:20px 0 16px;font-weight:800;color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.25);}
.banner-desc{font-size:17px;color:rgba(255,255,255,.88);max-width:680px;line-height:1.9;}
.article-meta{display:flex;align-items:center;gap:24px;margin-top:24px;font-size:14px;color:rgba(255,255,255,.8);flex-wrap:wrap;}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--accent-light);}

/* ============ 文章主体 ============ */
.article-main{margin-top:-74px;position:relative;z-index:5;padding-bottom:88px;}
.article-card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:52px 58px;border:1px solid rgba(255,255,255,.8);}
.article-body{font-size:16.5px;}
.article-body h2{font-size:27px;line-height:1.4;color:var(--dark);font-weight:800;margin:40px 0 18px;padding-bottom:12px;border-bottom:1px solid var(--border);}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:21px;line-height:1.5;color:var(--dark);font-weight:700;margin:28px 0 14px;}
.article-body p{line-height:2;color:var(--text);margin-bottom:20px;}
.article-body ul,.article-body ol{margin-bottom:22px;padding-left:8px;}
.article-body ul li{position:relative;padding:5px 0 5px 26px;color:var(--text);line-height:1.9;}
.article-body ul li::before{content:"✓";position:absolute;left:0;top:6px;width:18px;height:18px;background:var(--primary-light);color:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;}
.article-body ol{list-style:decimal;padding-left:22px;color:var(--text);line-height:2;}
.article-body ol li{margin-bottom:6px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--primary-dark);}
.article-body img{border-radius:14px;margin:28px 0;box-shadow:var(--shadow);}
.article-body blockquote{margin:28px 0;padding:22px 28px;border-left:4px solid var(--primary);background:var(--primary-light);border-radius:0 12px 12px 0;color:var(--text);font-style:normal;}
.article-body blockquote p{margin:0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;border-radius:12px;overflow:hidden;}
.article-body table th{background:var(--dark);color:#fff;padding:12px 16px;font-size:14px;text-align:left;}
.article-body table td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:14.5px;}
.article-body code{background:#f1f5f9;border:1px solid var(--border);padding:2px 8px;border-radius:6px;font-size:14px;}
.article-footer{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:44px;padding-top:28px;border-top:1px solid var(--border);flex-wrap:wrap;}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;}

/* ============ 侧边栏 ============ */
.sidebar-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 26px;margin-bottom:28px;border:1px solid rgba(255,255,255,.7);}
.sidebar-card h3{font-size:19px;font-weight:800;color:var(--dark);margin:0 0 14px;}
.sidebar-card p{font-size:14px;color:var(--text);line-height:1.8;}
.sidebar-card ul{margin-bottom:20px;}
.sidebar-card li{display:flex;align-items:flex-start;gap:10px;padding:7px 0;font-size:14px;color:var(--text);}
.sidebar-card li i{color:var(--accent);margin-top:4px;}
.sidebar-cover{border-radius:12px;overflow:hidden;margin:-6px 0 18px;box-shadow:var(--shadow);}
.sidebar-cover img{width:100%;display:block;}
.side-tips{background:var(--accent-light);border:1px dashed rgba(6,182,212,.4);}
.side-tips h3{color:var(--accent);}

/* ============ 最新资讯卡片 ============ */
.latest-section{background:var(--body);padding:96px 0;}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px;}
.post-card{display:flex;flex-direction:column;background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .25s,box-shadow .25s;height:100%;}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.post-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.post-card h3{font-size:17px;line-height:1.55;margin:0 0 10px;color:var(--dark);font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card p{font-size:14px;line-height:1.8;color:var(--text-light);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;}
.post-date{font-size:13px;color:var(--text-light);display:inline-flex;align-items:center;gap:6px;}
.empty-tip{text-align:center;color:var(--text-light);font-size:15px;padding:40px;background:var(--white);border-radius:16px;box-shadow:var(--shadow);}

/* ============ FAQ ============ */
.faq-section{background:var(--white);padding:96px 0;}
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:14px;margin-bottom:16px;overflow:hidden;transition:border .2s,box-shadow .2s;}
.faq-item.open{border-color:var(--primary);box-shadow:0 6px 20px rgba(37,99,235,.1);}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;background:transparent;border:none;cursor:pointer;font-size:16px;font-weight:700;color:var(--dark);text-align:left;}
.faq-question i{color:var(--text-light);transition:transform .3s;}
.faq-item.open .faq-question i{transform:rotate(180deg);color:var(--primary);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-answer{max-height:400px;}
.faq-answer p{padding:0 24px 20px;margin:0;color:var(--text-light);font-size:15px;line-height:1.9;}

/* ============ CTA ============ */
.cta-section{padding:40px 0 96px;background:var(--bg);}
.cta-wrap{background:var(--gradient);border-radius:28px;padding:64px 48px;text-align:center;color:#fff;position:relative;overflow:hidden;box-shadow:0 20px 50px rgba(37,99,235,.3);}
.cta-wrap::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.2) 0%,transparent 45%);}
.cta-wrap h2{font-size:34px;font-weight:800;margin:0 0 12px;position:relative;}
.cta-wrap p{font-size:17px;color:rgba(255,255,255,.85);margin-bottom:32px;position:relative;}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;}

/* ============ 空状态 ============ */
.missing-main{min-height:62vh;display:flex;align-items:center;justify-content:center;padding:80px 20px;background:var(--bg);}
.missing-card{background:var(--white);border-radius:24px;padding:60px 48px;box-shadow:var(--shadow-lg);max-width:540px;width:100%;text-align:center;}
.missing-card i{font-size:52px;color:var(--accent);margin-bottom:20px;display:block;}
.missing-card h1{font-size:28px;color:var(--dark);margin:0 0 12px;}
.missing-card p{color:var(--text-light);margin-bottom:28px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#94a3b8;padding:64px 0 0;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);}
.footer-brand .footer-logo{font-size:22px;font-weight:800;color:#fff;display:block;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.9;max-width:360px;margin:0;}
.footer-links h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:#94a3b8;transition:color .2s,padding-left .2s;}
.footer-links a:hover{color:#fff;padding-left:6px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:24px 0;font-size:13px;color:#64748b;flex-wrap:wrap;gap:12px;}
.footer-bottom a{color:#94a3b8;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
    .article-card{padding:40px 36px;}
    .article-banner{padding:80px 0 120px;}
    .article-banner-content h1{font-size:34px;}
    .search-box input{width:170px;}
}
@media (max-width:768px){
    .nav-toggle{display:flex;}
    .main-nav{position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--white);padding:16px 24px 24px;border-bottom:1px solid var(--border);box-shadow:0 12px 30px rgba(2,12,27,.1);display:none;}
    .main-nav.open{display:flex;}
    .nav-link{padding:12px 16px;font-size:16px;}
    .header-tools .search-box{display:none;}
    .footer-top{grid-template-columns:1fr;gap:32px;}
    .section-head{flex-direction:column;align-items:flex-start;}
    .section-head.center{align-items:center;}
    .footer-bottom{flex-direction:column;text-align:center;}
    .article-card{padding:30px 24px;}
    .article-body h2{font-size:23px;}
    .cta-wrap{padding:48px 24px;}
    .cta-wrap h2{font-size:27px;}
}
@media (max-width:520px){
    .header-inner{height:66px;}
    .logo-text{font-size:17px;}
    .logo-icon{width:34px;height:34px;font-size:14px;}
    .header-tools .btn-sm{font-size:13px;padding:7px 14px;}
    .article-banner{padding:64px 0 100px;}
    .article-banner-content h1{font-size:27px;}
    .banner-desc{font-size:15px;}
    .breadcrumb span{max-width:150px;}
    .article-meta{gap:14px;font-size:13px;}
    .article-footer{flex-direction:column;align-items:flex-start;}
    .cards-grid{grid-template-columns:1fr;}
    .section-main,.latest-section,.faq-section{padding:64px 0;}
    .section-head h2{font-size:26px;}
    .cta-buttons .btn{width:100%;}
    .missing-card{padding:40px 24px;}
    .sidebar-card{padding:24px 20px;}
}