/* roulang page: index */
:root {
  --primary: #1e5eff;
  --primary-dark: #1141b8;
  --primary-light: #e8eeff;
  --accent: #ff6b1a;
  --accent-dark: #e55608;
  --accent-soft: #fff1e8;
  --bg: #f5f7fb;
  --bg-deep: #0b1635;
  --white: #ffffff;
  --text: #17233b;
  --text-soft: #5c6a84;
  --text-light: #8b98ad;
  --border: #e3e8f0;
  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 24px;
  --radius-pill: 999px;
  --shadow-s: 0 2px 10px rgba(18, 35, 66, 0.06);
  --shadow-m: 0 10px 34px rgba(18, 35, 66, 0.1);
  --shadow-l: 0 24px 60px rgba(18, 35, 66, 0.15);
  --section-gap: 96px;
  --container: 1200px;
  --transition: all 0.25s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 26px; border-radius: var(--radius-pill); font-size: 15px; font-weight: 600; border: 0; cursor: pointer; transition: var(--transition); line-height: 1.4; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(30, 94, 255, 0.28); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(30, 94, 255, 0.34); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(255, 107, 26, 0.28); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-light { background: rgba(255,255,255,0.16); color: #fff; border: 1px solid rgba(255,255,255,0.35); }
.btn-light:hover { background: rgba(255,255,255,0.28); }
.btn:focus-visible { outline: 3px solid rgba(30, 94, 255, 0.4); outline-offset: 2px; }

/* Badge / Tag */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 7px 16px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; background: var(--primary-light); color: var(--primary); }
.tag { display: inline-block; padding: 4px 12px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; background: var(--primary-light); color: var(--primary); }
.tag-accent { background: var(--accent-soft); color: var(--accent); }
.tag-gray { background: #eef2f7; color: var(--text-soft); }

/* ===== Header / Nav ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.nav-wrap { max-width: var(--container); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 26px; height: 76px; padding: 0 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--text); white-space: nowrap; }
.brand-icon { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), #4d8bff); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: var(--radius-pill); font-size: 15px; font-weight: 600; color: var(--text-soft); transition: var(--transition); }
.nav-link:hover { background: var(--primary-light); color: var(--primary); }
.nav-link.active { background: var(--primary-light); color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.search-box { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 4px 4px 4px 16px; width: 220px; height: 42px; transition: var(--transition); }
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(30, 94, 255, 0.12); }
.search-box input { border: 0; background: transparent; outline: 0; font-size: 14px; flex: 1; color: var(--text); min-width: 0; }
.search-box input::placeholder { color: var(--text-light); }
.search-box button { border: 0; border-radius: var(--radius-pill); padding: 8px 15px; font-size: 13px; font-weight: 600; background: var(--primary); color: #fff; cursor: pointer; display: flex; align-items: center; gap: 6px; transition: var(--transition); }
.search-box button:hover { background: var(--primary-dark); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; background: var(--bg); border: 1px solid var(--border); cursor: pointer; align-items: center; justify-content: center; font-size: 20px; color: var(--text); }
.nav-toggle:focus-visible { outline: 3px solid rgba(30, 94, 255, 0.4); }

/* ===== Hero ===== */
.hero { position: relative; background: linear-gradient(135deg, rgba(10, 20, 60, 0.88), rgba(15, 35, 90, 0.76)), url('/assets/images/backpic/back-1.png') center / cover no-repeat; color: #fff; padding: 120px 0 90px; overflow: hidden; }
.hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 140px; background: linear-gradient(transparent, rgba(10, 20, 60, 0.25)); pointer-events: none; }
.hero-inner { position: relative; z-index: 2; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.3); backdrop-filter: blur(8px); padding: 8px 18px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 600; margin-bottom: 26px; }
.hero-badge i { color: #7fffb8; }
.hero-title { font-size: clamp(34px, 5vw, 56px); line-height: 1.2; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 20px; max-width: 780px; }
.hero-subtitle { font-size: clamp(16px, 2vw, 19px); color: rgba(255,255,255,0.82); max-width: 680px; line-height: 1.7; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 52px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 20px; }
.stat-card { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.18); backdrop-filter: blur(10px); border-radius: var(--radius-m); padding: 22px 18px; transition: var(--transition); }
.stat-card:hover { background: rgba(255,255,255,0.2); transform: translateY(-3px); }
.stat-value { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 4px; }
.stat-label { font-size: 13px; color: rgba(255,255,255,0.7); }

/* ===== Section base ===== */
.section { padding: var(--section-gap) 0; }
.section-white { background: var(--white); }
.section-gray { background: var(--bg); }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--primary); background: var(--primary-light); padding: 5px 14px; border-radius: var(--radius-pill); margin-bottom: 14px; letter-spacing: 0.02em; }
.section-title { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.25; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 14px; }
.section-desc { font-size: 15px; color: var(--text-soft); line-height: 1.7; }

/* ===== Feature cards ===== */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 30px 26px; transition: var(--transition); box-shadow: var(--shadow-s); }
.feature-card:hover { box-shadow: var(--shadow-m); transform: translateY(-5px); border-color: rgba(30, 94, 255, 0.25); }
.feature-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 18px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-soft); line-height: 1.65; }

/* ===== Category grid ===== */
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.category-card { position: relative; border-radius: var(--radius-l); overflow: hidden; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow-s); transition: var(--transition); display: block; }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.category-card img { width: 100%; height: 220px; object-fit: cover; transition: transform 0.4s ease; }
.category-card:hover img { transform: scale(1.04); }
.category-body { padding: 26px; }
.category-title { font-size: 21px; font-weight: 800; margin-bottom: 10px; }
.category-desc { font-size: 14px; color: var(--text-soft); line-height: 1.65; margin-bottom: 16px; }
.category-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }

/* ===== Article list ===== */
.articles-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.article-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 26px; display: flex; flex-direction: column; gap: 10px; transition: var(--transition); box-shadow: var(--shadow-s); }
.article-card:hover { box-shadow: var(--shadow-m); transform: translateY(-4px); border-color: rgba(30, 94, 255, 0.2); }
.article-card h3 { font-size: 18px; font-weight: 700; line-height: 1.45; transition: color 0.2s; }
.article-card:hover h3 { color: var(--primary); }
.article-card p { font-size: 14px; color: var(--text-soft); line-height: 1.65; }
.article-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--text-light); margin-top: auto; }
.pull { color: var(--primary); font-weight: 600; }
.empty-tip { grid-column: 1 / -1; text-align: center; padding: 50px 20px; background: var(--white); border: 1px dashed var(--border); border-radius: var(--radius-m); color: var(--text-soft); font-size: 15px; }

/* ===== Data / dark section ===== */
.data-section { background: var(--bg-deep); position: relative; overflow: hidden; }
.data-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent); }
.data-section::after { content: ''; position: absolute; top: -200px; right: -100px; width: 500px; height: 500px; background: radial-gradient(circle, rgba(30, 94, 255, 0.25), transparent 60%); pointer-events: none; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 2; }
.data-item { text-align: center; padding: 20px 10px; }
.data-value { font-size: 46px; font-weight: 800; background: linear-gradient(135deg, #6ea8ff, #ffffff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; margin-bottom: 8px; }
.data-label { font-size: 14px; color: rgba(255,255,255,0.65); }

/* ===== Process timeline ===== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-item { text-align: center; padding: 0 10px; position: relative; }
.step-dot { width: 62px; height: 62px; border-radius: 20px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 800; margin: 0 auto 20px; position: relative; z-index: 2; box-shadow: 0 8px 24px rgba(30, 94, 255, 0.18); }
.process-item:nth-child(2) .step-dot { background: #e8f8ee; color: #12a150; }
.process-item:nth-child(3) .step-dot { background: #fff1e8; color: #ff6b1a; }
.process-item:nth-child(4) .step-dot { background: #f1ecff; color: #7a47e6; }
.step-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.step-desc { font-size: 14px; color: var(--text-soft); }

/* ===== FAQ ===== */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 24px 26px; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-s); border-left: 3px solid var(--primary); }
.faq-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.faq-item h3 i { color: var(--primary); font-size: 14px; flex-shrink: 0; }
.faq-item p { font-size: 14px; color: var(--text-soft); line-height: 1.7; }

/* ===== CTA ===== */
.cta-box { position: relative; border-radius: var(--radius-l); overflow: hidden; background: linear-gradient(135deg, rgba(20, 45, 110, 0.9), rgba(15, 30, 80, 0.95)), url('/assets/images/backpic/back-2.png') center / cover no-repeat; color: #fff; padding: 70px 60px; text-align: center; }
.cta-box h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; margin-bottom: 16px; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 30px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,0.68); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; margin-bottom: 44px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.footer-brand i { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), #4d8bff); display: flex; align-items: center; justify-content: center; font-size: 16px; }
.footer-grid h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer-links a { transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-desc { font-size: 14px; line-height: 1.7; margin-top: 12px; }
.footer-newsletter { background: rgba(255,255,255,0.06); border-radius: var(--radius-m); padding: 22px; }
.footer-newsletter label { font-size: 13px; color: rgba(255,255,255,0.6); margin-bottom: 12px; display: block; }
.footer-newsletter form { display: flex; gap: 8px; }
.footer-newsletter input { flex: 1; border: 1px solid rgba(255,255,255,0.18); background: rgba(255,255,255,0.08); border-radius: var(--radius-pill); padding: 10px 16px; font-size: 14px; color: #fff; outline: 0; min-width: 0; }
.footer-newsletter input::placeholder { color: rgba(255,255,255,0.4); }
.footer-newsletter button { background: var(--primary); border: 0; border-radius: var(--radius-pill); color: #fff; padding: 10px 22px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.footer-newsletter button:hover { background: var(--primary-dark); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 14px; font-size: 13px; color: rgba(255,255,255,0.45); }

/* ===== Page banner (inner) ===== */
.page-banner { position: relative; background: linear-gradient(135deg, rgba(10, 20, 60, 0.9), rgba(15, 35, 90, 0.78)), url('/assets/images/backpic/back-3.png') center / cover no-repeat; color: #fff; padding: 70px 0; }
.page-banner-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: flex; flex-direction: column; gap: 14px; }
.page-banner h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; }
.page-banner p { font-size: 16px; color: rgba(255,255,255,0.78); max-width: 700px; }
.crumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.6); }
.crumb a:hover { color: #fff; }

/* ===== Article detail ===== */
.article-detail { max-width: 920px; margin: 0 auto; }
.article-detail h1 { font-size: clamp(26px, 3.6vw, 38px); line-height: 1.3; font-weight: 800; margin-bottom: 18px; }
.article-info { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; font-size: 14px; color: var(--text-soft); margin-bottom: 30px; padding-bottom: 22px; border-bottom: 1px solid var(--border); }
.article-body { font-size: 16px; line-height: 1.85; color: var(--text); }
.article-body h2 { font-size: 24px; font-weight: 700; margin: 34px 0 16px; }
.article-body h3 { font-size: 20px; font-weight: 700; margin: 26px 0 14px; }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 0 0 20px 22px; }
.article-body li { margin-bottom: 8px; }
.article-body img { border-radius: var(--radius-m); margin: 24px 0; }
.article-body blockquote { border-left: 4px solid var(--primary); background: var(--primary-light); padding: 16px 22px; border-radius: 0 var(--radius-m) var(--radius-m) 0; margin: 24px 0; color: var(--text-soft); }
.not-found { text-align: center; padding: 80px 20px; }
.not-found i { font-size: 48px; color: var(--text-light); margin-bottom: 20px; }
.not-found h2 { font-size: 28px; margin-bottom: 12px; }
.not-found p { color: var(--text-soft); margin-bottom: 24px; }

/* ===== Sidebar ===== */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.widget { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 24px; margin-bottom: 22px; }
.widget-title { font-size: 17px; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.widget-title i { color: var(--primary); }
.widget-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.widget-list a { display: block; font-size: 14px; font-weight: 600; color: var(--text); transition: var(--transition); line-height: 1.5; }
.widget-list a:hover { color: var(--primary); }

/* ===== Misc ===== */
.divider { height: 1px; background: var(--border); margin: 0; }
.image-block { border-radius: var(--radius-m); overflow: hidden; margin-bottom: 20px; box-shadow: var(--shadow-s); }
.section-narrow { max-width: 860px; }
.cover-photo { width: 100%; height: 160px; object-fit: cover; border-radius: var(--radius-m) var(--radius-m) 0 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .search-box { width: 180px; }
  .hero { padding: 90px 0 70px; }
  .section { --section-gap: 72px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 24px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-m); transform: translateY(-16px); opacity: 0; pointer-events: none; transition: var(--transition); }
  .nav-links.open { display: flex; transform: none; opacity: 1; pointer-events: auto; }
  .nav-link { justify-content: center; padding: 13px 16px; }
  .nav-toggle { display: flex; }
  .search-box { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 34px; }
  .feature-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 50px 26px; }
  .section { --section-gap: 56px; }
  .footer-grid { grid-template-columns: 1fr; padding-bottom: 16px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 16px; }
  .stat-value { font-size: 24px; }
  .process-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .nav-wrap { padding: 0 16px; }
  .brand { font-size: 16px; }
  .brand-icon { width: 34px; height: 34px; font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .cta-actions .btn { width: 100%; }
  .footer-newsletter form { flex-direction: column; }
}

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f97316;
  --accent-dark: #ea580c;
  --accent-light: #ffedd5;
  --dark: #0b1120;
  --dark-2: #111a2e;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #5b6b82;
  --border: #e2e8f0;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.05);
  --shadow-md: 0 8px 30px rgba(0,0,0,.07);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.12);
  --container: 1200px;
  --header-h: 76px;
  --transition: all .25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{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);background:var(--bg);font-weight:400}
img{max-width:100%;display:block;border:0}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input{font-family:inherit;border:none;outline:none}
ul{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:50px;font-size:15px;font-weight:600;line-height:1.4;transition:var(--transition);white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(37,99,235,.3)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,.4)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border:1.5px solid rgba(255,255,255,.8);color:#fff;background:transparent}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(249,115,22,.35)}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(249,115,22,.45)}
.btn:focus-visible{outline:3px solid rgba(37,99,235,.4);outline-offset:2px}
.tag{display:inline-flex;align-items:center;padding:6px 16px;border-radius:50px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:13px;font-weight:500;backdrop-filter:blur(8px)}
.section-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 18px;border-radius:50px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.3px}
.section-tag.light{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.25)}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-head h2{font-size:32px;font-weight:800;line-height:1.3;margin:14px 0 10px;letter-spacing:-.5px}
.section-head p{color:var(--text-muted);font-size:16px}
.section-head.light h2{color:#fff}
.section-head.light p{color:rgba(255,255,255,.75)}

.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);height:var(--header-h)}
.nav-wrap{max-width:var(--container);margin:0 auto;padding:0 24px;height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text);white-space:nowrap;letter-spacing:-.3px}
.brand:hover{color:var(--primary)}
.brand-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;flex-shrink:0;box-shadow:0 4px 12px rgba(37,99,235,.3)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:50px;font-size:14px;font-weight:500;color:var(--text-muted);transition:var(--transition)}
.nav-link:hover{background:var(--primary-light);color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(37,99,235,.25)}
.nav-link.active:hover{color:#fff}
.nav-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:50px;padding:0 6px 0 16px;height:42px;transition:var(--transition)}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.search-box input{background:transparent;border:none;outline:none;font-size:14px;width:120px;color:var(--text)}
.search-box input::placeholder{color:#94a3b8}
.search-box button{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.search-box button:hover{background:var(--primary-dark)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;background:var(--bg);border:1px solid var(--border);align-items:center;justify-content:center;font-size:18px;color:var(--text)}

.page-hero{position:relative;padding:110px 0 90px;background-size:cover;background-position:center;color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,14,30,.92) 0%,rgba(15,23,42,.75) 55%,rgba(30,64,175,.45) 100%);z-index:1}
.hero-content{position:relative;z-index:2;max-width:760px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:50px;background:rgba(249,115,22,.2);border:1px solid rgba(249,115,22,.45);font-size:13px;font-weight:600;color:#fdba74;margin-bottom:20px}
.hero-content h1{font-size:42px;font-weight:800;line-height:1.25;letter-spacing:-1px;margin-bottom:18px}
.hero-content p{font-size:17px;line-height:1.8;color:rgba(255,255,255,.85);max-width:620px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

.stats-section{padding:10px 0;margin-top:-30px;position:relative;z-index:5}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:36px 40px;border:1px solid var(--border)}
.stat-card{text-align:center;padding:10px}
.stat-num{font-size:44px;font-weight:800;color:var(--primary);line-height:1.1;letter-spacing:-1px}
.stat-num .suffix{font-size:22px;font-weight:700}
.stat-label{font-size:14px;color:var(--text-muted);margin-top:8px;font-weight:500}

.entry-section{padding:92px 0}
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.entry-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 30px;box-shadow:var(--shadow-sm);transition:var(--transition);display:flex;flex-direction:column}
.entry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,235,.25)}
.card-icon{width:56px;height:56px;border-radius:16px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:22px}
.entry-card:nth-child(2) .card-icon{background:var(--accent-light);color:var(--accent)}
.entry-card:nth-child(3) .card-icon{background:#ecfdf5;color:#10b981}
.entry-card img{width:100%;height:160px;object-fit:cover;border-radius:var(--radius-md);margin-bottom:24px}
.entry-card h3{font-size:20px;font-weight:700;margin-bottom:10px}
.entry-card p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:20px;flex-grow:1}
.match-list{display:flex;flex-wrap:wrap;gap:8px}
.match-item{padding:5px 14px;border-radius:50px;background:var(--bg);border:1px solid var(--border);font-size:12px;font-weight:500;color:var(--text-muted);transition:var(--transition)}
.match-item:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}

.steps-section{padding:100px 0;background-size:cover;background-position:center;position:relative;position:relative}
.steps-section::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(8,12,28,.94) 0%,rgba(15,30,60,.86) 60%,rgba(30,58,138,.72) 100%)}
.steps-section .container{position:relative;z-index:2}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:32px 26px;backdrop-filter:blur(10px);transition:var(--transition);position:relative;overflow:hidden}
.step-item:hover{background:rgba(255,255,255,.12);transform:translateY(-6px);border-color:rgba(255,255,255,.25)}
.step-num{font-size:48px;font-weight:800;color:rgba(249,115,22,.8);line-height:1;margin-bottom:18px;letter-spacing:-1px}
.step-item h3{color:#fff;font-size:17px;font-weight:700;margin-bottom:10px}
.step-item p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.7}

.news-section{padding:92px 0}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card img{width:100%;height:200px;object-fit:cover;transition:var(--transition)}
.news-card:hover img{transform:scale(1.04)}
.news-content{padding:26px 24px;flex-grow:1;display:flex;flex-direction:column}
.news-badge{display:inline-flex;align-items:center;padding:4px 14px;border-radius:50px;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;width:fit-content;margin-bottom:12px}
.news-card:nth-child(2) .news-badge{background:var(--accent-light);color:var(--accent)}
.news-card:nth-child(3) .news-badge{background:#ecfdf5;color:#10b981}
.news-content h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px}
.news-content p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:18px;flex-grow:1}
.news-content a{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.news-content a:hover{color:var(--primary-dark);gap:10px}

.faq-section{padding:92px 0;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;background:var(--bg);transition:var(--transition);overflow:hidden}
.faq-item.open{border-color:rgba(37,99,235,.3);box-shadow:var(--shadow-sm);background:#fff}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:var(--transition)}
.faq-question i{transition:transform .3s ease;color:var(--text-muted);font-size:14px;flex-shrink:0}
.faq-item.open .faq-question{color:var(--primary)}
.faq-item.open .faq-question i{transform:rotate(180deg);color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-answer p{padding:0 24px 20px;font-size:14px;color:var(--text-muted);line-height:1.8}

.cta-section{padding:80px 0;background:linear-gradient(135deg,var(--dark) 0%,var(--dark-2) 100%);position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-100px;right:-100px;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.3) 0%,transparent 70%)}
.cta-section::after{content:"";position:absolute;bottom:-100px;left:-100px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(249,115,22,.2) 0%,transparent 70%)}
.cta-box{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto}
.cta-box h2{color:#fff;font-size:32px;font-weight:800;line-height:1.4;margin-bottom:14px;letter-spacing:-.5px}
.cta-box p{color:rgba(255,255,255,.75);font-size:16px;margin-bottom:30px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}

.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:44px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand i{color:var(--primary);font-size:20px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-newsletter label{display:block;font-size:13px;color:rgba(255,255,255,.5);line-height:1.7;margin-bottom:14px}
.footer-newsletter form{display:flex;gap:8px}
.footer-newsletter input{flex:1;padding:11px 16px;border-radius:50px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff;font-size:13px;min-width:0}
.footer-newsletter input::placeholder{color:rgba(255,255,255,.35)}
.footer-newsletter input:focus{border-color:var(--primary);outline:none}
.footer-newsletter button{padding:11px 22px;border-radius:50px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;white-space:nowrap;transition:var(--transition)}
.footer-newsletter button:hover{background:var(--accent-dark)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:26px 0;font-size:13px;color:rgba(255,255,255,.4)}

@media(max-width:1024px){
  .nav-links{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:8px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);z-index:999}
  .nav-links.open{display:flex}
  .nav-link{width:100%;justify-content:flex-start}
  .nav-toggle{display:flex}
  .nav-link.active{background:var(--primary);color:#fff}
  .search-box input{width:100px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .hero-content h1{font-size:32px}
  .hero-content p{font-size:15px}
  .page-hero{padding:80px 0 70px}
  .stats-grid{grid-template-columns:1fr;padding:28px}
  .stat-card{border-bottom:1px solid var(--border);padding-bottom:20px}
  .stat-card:last-child{border-bottom:none;padding-bottom:0}
  .entry-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section-head h2{font-size:26px}
  .brand span{font-size:15px}
  .search-box{display:none}
  .nav-actions .btn-primary{padding:10px 16px;font-size:13px}
}
@media(max-width:520px){
  .nav-wrap{gap:10px;padding:0 16px}
  .brand-icon{width:36px;height:36px;font-size:16px}
  .brand span{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .btn-primary{padding:10px 18px;font-size:14px}
  .hero-content h1{font-size:27px}
  .hero-tags{gap:8px}
  .hero-actions .btn{width:100%}
  .cta-box h2{font-size:25px}
  .footer-newsletter form{flex-direction:column}
  .footer-newsletter button{width:100%}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}

/* roulang page: article */
:root {
    --primary: #1d4ed8;
    --primary-dark: #1e40af;
    --primary-light: #dbeafe;
    --accent: #f59e0b;
    --accent-cyan: #06b6d4;
    --bg: #f5f7fb;
    --surface: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, .05);
    --shadow-md: 0 8px 28px rgba(15, 23, 42, .08);
    --shadow-lg: 0 18px 48px rgba(15, 23, 42, .11);
    --header-h: 72px;
    --transition: all .25s ease;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
}

img {
    max-width: 100%;
    display: block;
    border: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 88px 0;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 16px;
    border-radius: 999px;
    letter-spacing: .5px;
}

.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 48px;
}

.section-head .section-tag {
    margin-bottom: 14px;
}

.section-head h2 {
    font-size: 36px;
    line-height: 1.3;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text);
}

.section-head p {
    margin-top: 14px;
    font-size: 17px;
    color: var(--text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.4;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(29, 78, 216, .28);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(29, 78, 216, .34);
}

.btn-light {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
    box-shadow: 0 6px 20px rgba(0, 0, 0, .1);
}

.btn-light:hover {
    background: #f1f5f9;
    transform: translateY(-2px);
}

.btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, .7);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, .12);
    border-color: #fff;
    transform: translateY(-2px);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: var(--primary-light);
    color: var(--primary);
    letter-spacing: .3px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(226, 232, 240, .8);
    height: var(--header-h);
}

.nav-wrap {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: var(--header-h);
    display: flex;
    align-items: center;
    gap: 28px;
    position: relative;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -.3px;
    white-space: nowrap;
    transition: var(--transition);
}

.brand:hover {
    color: var(--primary);
}

.brand-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    color: #fff;
    border-radius: 12px;
    font-size: 17px;
    box-shadow: 0 4px 14px rgba(29, 78, 216, .3);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
    display: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 999px;
    color: var(--text-muted);
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

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

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

.nav-link.active::after {
    content: "";
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 4px;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}

.search-box {
    display: flex;
    align-items: center;
    background: #f1f5f9;
    border-radius: 999px;
    padding: 0 6px 0 16px;
    height: 42px;
    width: 220px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.search-box:focus-within {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 4px 16px rgba(29, 78, 216, .12);
}

.search-box input {
    flex: 1;
    min-width: 0;
    background: transparent;
    font-size: 14px;
    color: var(--text);
}

.search-box input::placeholder {
    color: #94a3b8;
}

.search-box button {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
    flex-shrink: 0;
}

.search-box button:hover {
    background: var(--primary-dark);
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--bg);
    color: var(--text);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.nav-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.page-banner {
    position: relative;
    padding: 88px 0 72px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
    color: #fff;
}

.page-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top right, rgba(6, 182, 212, .25), transparent 55%),
        radial-gradient(ellipse at bottom left, rgba(245, 158, 11, .15), transparent 50%);
    pointer-events: none;
}

.page-banner .container {
    position: relative;
    z-index: 2;
}

.crumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, .75);
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.crumbs i {
    font-size: 12px;
    color: rgba(255, 255, 255, .5);
}

.crumbs a {
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.banner-title {
    font-size: 42px;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -1px;
    max-width: 760px;
    margin-bottom: 14px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, .3);
}

.banner-sub {
    font-size: 17px;
    color: rgba(255, 255, 255, .85);
    max-width: 620px;
    line-height: 1.7;
}

.article-section {
    padding: 72px 0 88px;
    margin-top: -36px;
    position: relative;
    z-index: 5;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 36px;
    align-items: start;
}

.article-main-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, .7);
}

.article-head {
    padding: 36px 40px 28px;
    border-bottom: 1px solid var(--border);
}

.article-head .badge {
    margin-bottom: 14px;
}

.article-head h1 {
    font-size: 30px;
    line-height: 1.4;
    font-weight: 800;
    letter-spacing: -.5px;
    color: var(--text);
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 14px;
    color: var(--text-muted);
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.article-meta i {
    color: var(--primary);
    font-size: 15px;
}

.article-body {
    padding: 36px 40px 48px;
}

.article-body > * + * {
    margin-top: 20px;
}

.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-top: 36px;
    line-height: 1.5;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    border-radius: 2px;
}

.article-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-top: 30px;
    line-height: 1.5;
}

.article-body p {
    font-size: 16px;
    line-height: 1.9;
    color: #334155;
}

.article-body ul,
.article-body ol {
    padding-left: 4px;
}

.article-body ul li,
.article-body ol li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 10px;
    color: #334155;
    line-height: 1.8;
}

.article-body ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 13px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    opacity: .85;
}

.article-body ol {
    counter-reset: list-counter;
}

.article-body ol li {
    counter-increment: list-counter;
}

.article-body ol li::before {
    content: counter(list-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 22px;
    height: 22px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-body blockquote {
    background: #f8fafc;
    border-left: 4px solid var(--accent);
    border-radius: 0 12px 12px 0;
    padding: 20px 24px;
    color: #475569;
    font-size: 15px;
    line-height: 1.8;
}

.article-body img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    max-height: 480px;
    object-fit: cover;
    width: 100%;
}

.article-body a {
    color: var(--primary);
    border-bottom: 1px solid rgba(29, 78, 216, .3);
    transition: var(--transition);
}

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

.article-tags {
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.article-tags .tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #f1f5f9;
    color: #475569;
    font-size: 13px;
    padding: 5px 14px;
    border-radius: 999px;
    transition: var(--transition);
}

.article-tags .tag:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.article-tags .tag i {
    color: var(--accent);
}

.article-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 96px;
}

.side-card {
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid rgba(226, 232, 240, .8);
    box-shadow: var(--shadow-sm);
    padding: 24px;
}

.side-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.side-card h3 i {
    color: var(--primary);
    font-size: 16px;
}

.side-info-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.side-info-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border);
}

.side-info-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.side-info-label {
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.side-info-value {
    font-weight: 600;
    color: var(--text);
    font-size: 14px;
    text-align: right;
}

.status-card {
    background: linear-gradient(135deg, #0b1220 0%, #1e293b 100%);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    color: #fff;
    border: none;
    position: relative;
    overflow: hidden;
}

.status-card::before {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, .25), transparent 70%);
}

.status-card h3 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 16px;
}

.status-card h3 i {
    color: var(--accent-cyan);
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    position: relative;
    z-index: 2;
}

.status-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.status-item .status-num {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent-cyan);
    line-height: 1.2;
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-item .status-num .fa-solid {
    font-size: 14px;
    color: var(--accent);
}

.status-item .status-label {
    font-size: 12px;
    color: rgba(255, 255, 255, .65);
}

.status-card .status-note {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    font-size: 13px;
    color: rgba(255, 255, 255, .7);
    display: flex;
    gap: 8px;
    line-height: 1.6;
}

.status-card .status-note i {
    color: var(--accent);
}

.side-cate-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.side-cate-list a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: #f8fafc;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.side-cate-list a:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    transform: translateX(4px);
}

.side-cate-list a img {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
}

.side-cate-list a span {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    flex: 1;
}

.side-cate-list a i {
    color: var(--primary);
    font-size: 14px;
    transition: var(--transition);
}

.side-cate-list a:hover i {
    transform: translateX(3px);
}

.not-found {
    padding: 60px 40px;
    text-align: center;
}

.not-found-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary);
}

.not-found h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
}

.not-found p {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: 28px;
}

.related-section {
    background: var(--surface);
    padding: 88px 0;
    border-top: 1px solid var(--border);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.related-card {
    display: flex;
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.related-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: rgba(29, 78, 216, .35);
}

.related-card img {
    width: 180px;
    object-fit: cover;
    flex-shrink: 0;
}

.related-card-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.related-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.5;
}

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

.related-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.related-card:hover .related-more {
    gap: 12px;
}

.faq-section {
    background: var(--bg);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.faq-item h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    display: flex;
    gap: 10px;
    line-height: 1.5;
}

.faq-item h3 i {
    color: var(--primary);
    font-size: 15px;
    margin-top: 3px;
}

.faq-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
}

.cta-section {
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    padding: 0;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: 72px 56px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #0b1220, #1e3a8a 90%);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cta-box::before {
    content: "";
    position: absolute;
    top: -60px;
    right: -60px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, .35), transparent 70%);
}

.cta-box::after {
    content: "";
    position: absolute;
    bottom: -40px;
    left: 20%;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, .22), transparent 70%);
}

.cta-box .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    width: 100%;
    padding: 0;
}

.cta-text {
    position: relative;
    z-index: 2;
    flex: 1;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(6, 182, 212, .16);
    color: var(--accent-cyan);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.cta-text h2 {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    line-height: 1.35;
    margin-bottom: 12px;
    letter-spacing: -.5px;
}

.cta-text p {
    font-size: 15px;
    color: rgba(255, 255, 255, .75);
    max-width: 560px;
    line-height: 1.8;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.site-footer {
    background: #0b1220;
    color: #94a3b8;
    padding: 72px 0 0;
    margin-top: 88px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
    gap: 44px;
    padding-bottom: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand i {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    border-radius: 10px;
    font-size: 15px;
    color: #fff;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #94a3b8;
}

.site-footer h4 {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: .5px;
}

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

.footer-links a {
    font-size: 14px;
    color: #94a3b8;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--accent-cyan);
    padding-left: 4px;
}

.footer-newsletter label {
    display: block;
    font-size: 13px;
    line-height: 1.7;
    color: #94a3b8;
    margin-bottom: 16px;
}

.footer-newsletter form {
    display: flex;
    gap: 10px;
}

.footer-newsletter input {
    flex: 1;
    min-width: 0;
    height: 44px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .14);
    background: rgba(255, 255, 255, .06);
    color: #fff;
    font-size: 14px;
    transition: var(--transition);
}

.footer-newsletter input::placeholder {
    color: #64748b;
}

.footer-newsletter input:focus {
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, .1);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, .2);
}

.footer-newsletter button {
    height: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.footer-newsletter button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 22px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 13px;
    color: #64748b;
}

.footer-bottom span:first-child {
    display: flex;
    align-items: center;
    gap: 6px;
}

@media (max-width: 1024px) {
    .nav-links {
        gap: 2px;
    }

    .nav-link {
        padding: 8px 14px;
        font-size: 14px;
    }

    .search-box {
        width: 170px;
    }

    .article-layout {
        grid-template-columns: minmax(0, 1fr) 300px;
        gap: 24px;
    }

    .article-head {
        padding: 28px 28px 22px;
    }

    .article-body {
        padding: 28px;
    }

    .article-head h1 {
        font-size: 26px;
    }

    .banner-title {
        font-size: 34px;
    }

    .cta-box {
        padding: 56px 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 18px;
    }

    .section {
        padding: 64px 0;
    }

    .nav-wrap {
        gap: 12px;
    }

    .brand {
        font-size: 15px;
        gap: 7px;
    }

    .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px;
        gap: 6px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border);
        max-height: 80vh;
        overflow-y: auto;
        border-radius: 0 0 20px 20px;
    }

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

    .nav-link {
        padding: 14px 16px;
        font-size: 15px;
        border-radius: 12px;
    }

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

    .nav-actions {
        margin-left: auto;
    }

    .search-box {
        display: none;
    }

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

    .nav-actions .btn-primary {
        display: none;
    }

    .page-banner {
        padding: 64px 0 56px;
    }

    .banner-title {
        font-size: 28px;
    }

    .banner-sub {
        font-size: 15px;
    }

    .crumbs {
        font-size: 13px;
    }

    .article-section {
        padding: 60px 0 72px;
        margin-top: -20px;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-side {
        position: static;
        margin-top: 8px;
    }

    .article-head h1 {
        font-size: 22px;
    }

    .article-head {
        padding: 24px 20px 20px;
    }

    .article-body {
        padding: 24px 20px 32px;
    }

    .article-body h2 {
        font-size: 20px;
    }

    .article-body p {
        font-size: 15px;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .related-card {
        flex-direction: column;
    }

    .related-card img {
        width: 100%;
        height: 160px;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .cta-box {
        padding: 44px 24px;
        flex-direction: column;
        text-align: center;
    }

    .cta-box .container {
        flex-direction: column;
        text-align: center;
    }

    .cta-text h2 {
        font-size: 24px;
    }

    .cta-actions {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

@media (max-width: 520px) {
    .section-head h2 {
        font-size: 26px;
    }

    .brand span {
        max-width: 180px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .page-banner {
        padding: 52px 0 46px;
    }

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

    .crumbs {
        margin-bottom: 14px;
    }

    .article-meta {
        flex-direction: column;
        gap: 8px;
    }

    .status-grid {
        grid-template-columns: 1fr 1fr;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .footer-newsletter form {
        flex-direction: column;
    }

    .footer-newsletter button {
        width: 100%;
    }

    .not-found {
        padding: 40px 20px;
    }

    .not-found h2 {
        font-size: 24px;
    }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #818cf8;
  --primary-lighter: #e0e7ff;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --accent-lighter: #fef3c7;
  --bg: #f8fafc;
  --bg-deep: #0b1320;
  --bg-deep-2: #111c30;
  --text: #0f172a;
  --text-light: #5a6b80;
  --text-lighter: #8a9ab0;
  --border: #e2e8f0;
  --white: #ffffff;
  --green: #10b981;
  --red: #ef4444;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 26px;
  --shadow: 0 10px 36px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.12);
  --shadow-primary: 0 12px 30px rgba(79, 70, 229, 0.28);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== Reset / Base ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--primary-dark);
}
img {
  max-width: 100%;
  display: block;
  height: auto;
}
button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
ul,
ol {
  list-style: none;
}
h1, h2, h3, h4, h5 {
  line-height: 1.3;
  font-weight: 700;
}
.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}
.section {
  padding: 88px 0;
}
.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-lighter);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.section-head p {
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.7;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: 100px;
  padding: 13px 30px;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(79, 70, 229, 0.35);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.25);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 30px rgba(245, 158, 11, 0.3);
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover {
  border-color: var(--white);
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}
.btn:focus-visible {
  outline: 3px solid var(--primary-light);
  outline-offset: 3px;
}
.btn-sm {
  padding: 9px 18px;
  font-size: 13px;
}

/* ========== 徽章 & 标签 ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--primary-lighter);
  color: var(--primary-dark);
}
.badge-green {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
}
.badge-accent {
  background: var(--accent-lighter);
  color: var(--accent-dark);
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  background: #f1f4f9;
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
  transition: var(--transition);
}
.tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1400px, 96%);
  margin: 0 auto;
  height: 72px;
  padding: 0 12px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  color: var(--text);
  flex-shrink: 0;
  letter-spacing: -0.2px;
}
.brand:hover {
  color: var(--text);
}
.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  transition: var(--transition);
}
.nav-link i {
  font-size: 13px;
  color: var(--text-lighter);
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-lighter);
}
.nav-link:hover i {
  color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
  background: var(--primary-lighter);
}
.nav-link.active i {
  color: var(--primary);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  background: #f1f4f9;
  border-radius: 100px;
  padding: 5px 8px 5px 16px;
  border: 1px solid transparent;
  transition: var(--transition);
  width: 180px;
}
.search-box:focus-within {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}
.search-box input {
  flex: 1;
  font-size: 13px;
  color: var(--text);
  background: transparent;
  width: 100%;
}
.search-box input::placeholder {
  color: var(--text-lighter);
}
.search-box button {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.search-box button:hover {
  background: var(--primary-dark);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #f1f4f9;
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover {
  background: var(--primary-lighter);
  color: var(--primary);
}

/* ========== Hero / 分类页 banner ========== */
.page-hero {
  position: relative;
  padding: 96px 0;
  background: linear-gradient(135deg, rgba(11, 19, 32, 0.92), rgba(30, 27, 75, 0.85)), url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  color: var(--white);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.4), transparent 65%);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -50%;
  left: 15%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.22), transparent 65%);
  pointer-events: none;
}
.page-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.08);
  padding: 6px 16px;
  border-radius: 100px;
  backdrop-filter: blur(8px);
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
}
.breadcrumb a:hover {
  color: var(--white);
}
.page-hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 60%, #b8b6ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 5px 14px;
  border-radius: 100px;
  backdrop-filter: blur(8px);
}
/* 状态卡 */
.status-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
}
.status-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2); }
  50% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0.05); }
}
.status-head span {
  font-size: 15px;
  font-weight: 700;
}
.status-badge {
  margin-left: auto;
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
}
.status-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.status-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.status-list span {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
}
.status-list strong {
  color: var(--white);
  font-size: 18px;
  font-weight: 800;
}
.status-note {
  margin-top: 20px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  line-height: 1.6;
}

/* ========== 入口方式卡片 ========== */
.ways-section {
  background: var(--bg);
}
.ways-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.way-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.way-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(79, 70, 229, 0.3);
}
.way-card-image {
  height: 150px;
  overflow: hidden;
  position: relative;
}
.way-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.way-card:hover .way-card-image img {
  transform: scale(1.08);
}
.way-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.25));
}
.way-card-icon {
  position: absolute;
  bottom: -20px;
  right: 16px;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.35);
  z-index: 2;
}
.way-card-body {
  padding: 24px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.way-card-body h3 {
  font-size: 19px;
  font-weight: 700;
}
.way-card-body p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}
.way-card .tag-list {
  margin-top: auto;
  padding-top: 6px;
}

/* ========== 分步流程 ========== */
.steps-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.step-item {
  position: relative;
  padding: 32px 26px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.step-item:hover {
  border-color: var(--primary);
  background: var(--primary-lighter);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.28);
}
.step-item:nth-child(2) .step-num { background: #7c3aed; }
.step-item:nth-child(3) .step-num { background: var(--accent); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3); }
.step-item:nth-child(4) .step-num { background: #059669; }
.step-item h3 {
  font-size: 17px;
  margin-bottom: 10px;
}
.step-item p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
}

/* ========== 数据指标深色区块 ========== */
.metrics-section {
  background: linear-gradient(135deg, var(--bg-deep) 0%, var(--bg-deep-2) 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.metrics-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.25), transparent 60%);
}
.metrics-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.metric-item {
  text-align: center;
  padding: 36px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}
.metric-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.15);
}
.metric-num {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.2;
  background: linear-gradient(135deg, #fff, #a5a0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: 8px;
}
.metric-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
  font-weight: 500;
}
.metric-item .metric-sub {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

/* ========== 使用场景 ========== */
.scenes-section {
  background: var(--bg);
}
.scenes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.scene-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.scene-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.scene-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.scene-card:hover img {
  transform: scale(1.06);
}
.scene-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(11, 19, 32, 0.85));
}
.scene-content {
  position: relative;
  z-index: 2;
  padding: 28px 26px;
  color: #fff;
}
.scene-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.scene-content p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 14px;
}
.scene-content .tag {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--border);
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: var(--bg);
  transition: var(--transition);
  overflow: hidden;
}
.faq-item.open {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: var(--shadow);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  color: var(--primary);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-lighter);
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq-item.open .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.open .faq-answer {
  max-height: 300px;
}
.faq-answer p {
  padding: 0 26px 22px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  padding: 88px 0;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.6), rgba(124, 58, 237, 0.5)), url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  position: relative;
  overflow: hidden;
}
.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
  position: relative;
  z-index: 2;
}
.cta-box h2 {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.65);
  padding: 70px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 52px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-brand i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  max-width: 320px;
}
.site-footer h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}
.footer-newsletter label {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  margin-bottom: 14px;
}
.footer-newsletter form {
  display: flex;
  gap: 10px;
}
.footer-newsletter input {
  flex: 1;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 13px;
  transition: var(--transition);
  min-width: 0;
}
.footer-newsletter input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}
.footer-newsletter input:focus {
  border-color: var(--primary-light);
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}
.footer-newsletter button {
  padding: 12px 22px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border: none;
}
.footer-newsletter button:hover {
  background: var(--primary-dark);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
  .ways-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-wrap {
    grid-template-columns: repeat(2, 1fr);
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    gap: 0;
  }
  .search-box {
    width: 140px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .nav-wrap {
    height: auto;
    min-height: 68px;
    flex-wrap: wrap;
    padding: 8px 12px;
    gap: 8px;
  }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    background: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    padding: 10px;
    gap: 4px;
    margin-top: 4px;
    box-shadow: var(--shadow);
    max-height: 60vh;
    overflow-y: auto;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    justify-content: flex-start;
    padding: 12px 16px;
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }
  .nav-actions {
    gap: 8px;
  }
  .search-box {
    width: 40px;
    padding: 5px;
    justify-content: center;
  }
  .search-box input {
    display: none;
  }
  .search-box button {
    width: 30px;
    height: 30px;
  }
  .brand {
    font-size: 15px;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
  }
  .page-hero {
    padding: 64px 0;
  }
  .page-hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .status-card {
    padding: 24px;
  }
  .ways-grid,
  .steps-wrap,
  .metrics-grid,
  .scenes-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .cta-section {
    padding: 64px 0;
  }
  .hero-actions .btn {
    flex: 1;
    max-width: none;
  }
  .footer-newsletter form {
    flex-direction: column;
  }
  .footer-newsletter button {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .container {
    width: 94%;
  }
  .section {
    padding: 52px 0;
  }
  .brand span {
    max-width: 170px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .nav-actions .btn {
    display: none;
  }
  .way-card-image {
    height: 130px;
  }
  .step-item {
    padding: 26px 20px;
  }
  .metric-item {
    padding: 28px 14px;
  }
  .faq-question {
    padding: 18px 20px;
    font-size: 14px;
  }
  .faq-answer p {
    padding: 0 20px 18px;
    font-size: 14px;
  }
  .hero-tags span {
    font-size: 12px;
    padding: 4px 10px;
  }
}