/* roulang page: index */
:root {
  --brand-primary: #1e56a0;
  --brand-primary-dark: #123a6d;
  --brand-secondary: #37b6e8;
  --brand-accent: #ffb347;
  --brand-dark: #0b1f3a;
  --bg-light: #f4f7fb;
  --bg-white: #ffffff;
  --text-dark: #16233a;
  --text-body: #4a5a72;
  --text-weak: #8a97ad;
  --border-light: #e4eaf2;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 4px 14px rgba(13, 33, 62, 0.07);
  --shadow-md: 0 10px 30px rgba(13, 33, 62, 0.09);
  --shadow-lg: 0 22px 48px rgba(13, 33, 62, 0.13);
  --space-section: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
a:hover { color: var(--brand-primary); }
img { max-width: 100%; display: block; }
button, input, textarea, select { font-family: inherit; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

/* ============ 顶部品牌行 ============ */
.site-header { background: var(--brand-dark); }
.brand-bar { padding: 14px 0; }
.brand-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.brand-logo i {
  color: var(--brand-accent);
  font-size: 1.25rem;
  background: rgba(255, 179, 71, 0.15);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.brand-logo:hover { color: #ffffff; }
.brand-logo .logo-sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.header-search { display: flex; align-items: center; gap: 8px; }
.header-search .search-box {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 40px;
  padding: 7px 7px 7px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-search .search-box i { color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; }
.header-search input {
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-size: 0.9rem;
  width: 200px;
}
.header-search input::placeholder { color: rgba(255, 255, 255, 0.5); }
.header-search button {
  background: var(--brand-accent);
  border: none;
  color: var(--brand-dark);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 30px;
  transition: background 0.25s ease, transform 0.15s ease;
}
.header-search button:hover { background: #ffc46a; transform: translateY(-1px); }
.header-search button:focus-visible { outline: 2px solid #ffffff; outline-offset: 2px; }

/* ============ 频道导航 ============ */
.channel-nav { background: #ffffff; border-bottom: 1px solid var(--border-light); box-shadow: 0 2px 10px rgba(13, 33, 62, 0.04); position: sticky; top: 0; z-index: 100; }
.channel-nav .nav-container { display: flex; align-items: center; gap: 4px; min-height: 58px; }
.channel-nav .nav-link {
  padding: 12px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  border-radius: 10px;
  position: relative;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.channel-nav .nav-link i { color: var(--text-weak); font-size: 0.85rem; transition: color 0.25s ease; }
.channel-nav .nav-link:hover { color: var(--brand-primary); background: rgba(30, 86, 160, 0.06); }
.channel-nav .nav-link:hover i { color: var(--brand-secondary); }
.channel-nav .nav-link.active { color: var(--brand-primary); }
.channel-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 8px;
  height: 3px;
  border-radius: 3px;
  background: var(--brand-primary);
}
.channel-nav .nav-link:focus-visible { outline: 2px solid var(--brand-secondary); outline-offset: -2px; }

/* ============ Hero ============ */
.hero {
  background: linear-gradient(120deg, rgba(11, 31, 58, 0.92), rgba(30, 86, 160, 0.82)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  color: #fff;
  padding: 110px 0 90px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(55, 182, 232, 0.25), transparent 65%);
  pointer-events: none;
}
.hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 179, 71, 0.18);
  border: 1px solid rgba(255, 179, 71, 0.4);
  color: #ffd291;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 30px;
  letter-spacing: 1px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  margin: 22px 0 16px;
  letter-spacing: 1px;
}
.hero p.lead {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }
.btn {
  border-radius: 12px;
  font-weight: 600;
  padding: 11px 26px;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
  border: 1px solid transparent;
}
.btn-primary-custom {
  background: var(--brand-accent);
  color: var(--brand-dark);
  box-shadow: 0 8px 22px rgba(255, 179, 71, 0.3);
}
.btn-primary-custom:hover { background: #ffc46a; color: var(--brand-dark); transform: translateY(-3px); box-shadow: 0 12px 28px rgba(255, 179, 71, 0.35); }
.btn-outline-light-custom {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
}
.btn-outline-light-custom:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.7); color: #fff; transform: translateY(-3px); }
.btn:focus-visible { outline: 3px solid var(--brand-secondary); outline-offset: 2px; }
.hero-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 16px; max-width: 620px; }
.stat-item {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  backdrop-filter: blur(4px);
}
.stat-item .num { font-size: 1.6rem; font-weight: 800; color: #ffffff; line-height: 1.2; }
.stat-item .label { font-size: 0.88rem; color: rgba(255, 255, 255, 0.68); margin-top: 4px; }

/* ============ 板块通用 ============ */
.section { padding: var(--space-section) 0; }
.section-head { margin-bottom: 44px; }
.section-head .section-eyebrow {
  color: var(--brand-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 10px;
}
.section-head p { color: var(--text-weak); max-width: 680px; font-size: 1rem; }
.section-bg-alt { background: var(--bg-light); }

/* ============ 核心说明 ============ */
.feature-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.feature-intro .text-wrap h3 { font-size: 1.55rem; font-weight: 800; color: var(--text-dark); margin-bottom: 16px; line-height: 1.4; }
.feature-intro .text-wrap p { margin-bottom: 14px; }
.feature-checklist { margin-top: 22px; display: grid; gap: 12px; }
.checklist-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 16px; background: var(--bg-light); border-radius: 12px; border: 1px solid var(--border-light); }
.checklist-item i { color: var(--brand-secondary); font-size: 1rem; margin-top: 3px; }
.checklist-item span { font-size: 0.95rem; color: var(--text-dark); font-weight: 500; }
.intro-media { position: relative; }
.intro-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.intro-media .media-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-radius: 14px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
}
.media-badge i { color: var(--brand-primary); font-size: 1.4rem; }
.media-badge .text { font-size: 0.85rem; color: var(--text-dark); font-weight: 700; line-height: 1.3; }

/* ============ 分类入口 ============ */
.cat-card {
  height: 100%;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.cat-card .cat-img { position: relative; overflow: hidden; height: 180px; }
.cat-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.cat-card:hover .cat-img img { transform: scale(1.05); }
.cat-card .cat-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(11, 31, 58, 0.45)); }
.cat-card .cat-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  color: var(--brand-primary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 30px;
  letter-spacing: 0.5px;
}
.cat-card .cat-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.cat-card .cat-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.cat-card .cat-body p { font-size: 0.92rem; color: var(--text-weak); flex: 1; margin-bottom: 16px; }
.cat-card .cat-link { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; font-weight: 600; color: var(--brand-primary); }
.cat-card .cat-link:hover { gap: 10px; color: var(--brand-primary-dark); }

/* ============ 资讯列表 ============ */
.news-card { background: #fff; border-radius: var(--radius-md); padding: 22px 24px; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); transition: box-shadow 0.3s ease, transform 0.3s ease; display: flex; gap: 18px; align-items: flex-start; }
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.news-card .news-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}
.news-card .news-content { flex: 1; min-width: 0; }
.news-card .news-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.news-card .news-tag { background: rgba(30, 86, 160, 0.1); color: var(--brand-primary); font-size: 0.75rem; font-weight: 600; padding: 2px 10px; border-radius: 20px; }
.news-card .news-date { font-size: 0.8rem; color: var(--text-weak); }
.news-card .news-title { font-size: 1rem; font-weight: 700; color: var(--text-dark); line-height: 1.5; margin-bottom: 4px; display: block; }
.news-card .news-desc { font-size: 0.88rem; color: var(--text-weak); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news-empty { background: #fff; border-radius: var(--radius-md); padding: 50px 20px; text-align: center; border: 1px dashed var(--border-light); color: var(--text-weak); }

/* ============ 流程 ============ */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-item { text-align: center; padding: 32px 22px; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); position: relative; transition: box-shadow 0.3s ease, transform 0.3s ease; }
.step-item:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); }
.step-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-item h3 { font-size: 1.02rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.step-item p { font-size: 0.88rem; color: var(--text-weak); margin: 0; }

/* ============ 平台优势 ============ */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-card { padding: 30px 26px; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.adv-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.adv-card .adv-icon { width: 54px; height: 54px; border-radius: 14px; background: rgba(30, 86, 160, 0.1); color: var(--brand-primary); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 18px; }
.adv-card h3 { font-size: 1.08rem; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.adv-card p { font-size: 0.9rem; color: var(--text-weak); margin: 0; }

/* ============ FAQ ============ */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 26px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background 0.25s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--brand-secondary); font-size: 1rem; transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item[open] summary { background: rgba(30, 86, 160, 0.03); }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item .faq-content { padding: 0 26px 22px; color: var(--text-body); font-size: 0.95rem; }

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(120deg, rgba(11, 31, 58, 0.92), rgba(30, 86, 160, 0.85)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 66px 50px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-section h2 { color: #fff; font-size: 1.9rem; font-weight: 800; margin-bottom: 12px; }
.cta-section p { color: rgba(255, 255, 255, 0.8); max-width: 620px; margin-bottom: 28px; }

/* ============ 页脚 ============ */
.site-footer { background: var(--brand-dark); color: rgba(255, 255, 255, 0.75); padding-top: 56px; }
.site-footer .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.site-footer .footer-brand .brand-logo { margin-bottom: 14px; }
.site-footer .footer-brand p { font-size: 0.9rem; max-width: 320px; }
.site-footer h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.site-footer .footer-links { list-style: none; padding: 0; margin: 0; }
.site-footer .footer-links li { margin-bottom: 9px; }
.site-footer .footer-links a { font-size: 0.9rem; color: rgba(255, 255, 255, 0.6); transition: color 0.25s ease; }
.site-footer .footer-links a:hover { color: var(--brand-accent); }
.footer-bottom { padding: 20px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 0.85rem; color: rgba(255, 255, 255, 0.45); }
.footer-bottom a { color: rgba(255, 255, 255, 0.55); }
.footer-bottom a:hover { color: var(--brand-accent); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .feature-intro { grid-template-columns: 1fr; gap: 32px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .brand-row { flex-direction: column; align-items: flex-start; }
  .channel-nav .nav-container { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: thin; gap: 0; }
  .channel-nav .nav-link { padding: 12px 14px; }
  .hero { padding: 70px 0 56px; }
  .hero-actions { flex-direction: column; }
  .btn { justify-content: center; }
  .cat-card .cat-img { height: 150px; }
  .news-card { flex-direction: column; }
  .cta-section { padding: 44px 26px; }
}
@media (max-width: 520px) {
  body { font-size: 15px; }
  .header-search { width: 100%; }
  .header-search .search-box { flex: 1; }
  .header-search input { width: auto; flex: 1; }
  .steps-grid, .adv-grid { grid-template-columns: 1fr; }
  .site-footer .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .stat-item .num { font-size: 1.3rem; }
  .section-head h2 { font-size: 1.5rem; }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #e8352b;
  --primary-dark: #c1271f;
  --primary-light: #ff6a3d;
  --accent: #ffb800;
  --deep: #0b1424;
  --deep-2: #101d36;
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1a2332;
  --muted: #627089;
  --border: #e3e8f1;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(12, 22, 39, 0.06);
  --shadow-md: 0 12px 32px rgba(12, 22, 39, 0.10);
  --shadow-lg: 0 20px 48px rgba(12, 22, 39, 0.12);
}

/* ============ 基础重置 ============ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  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: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color .2s, background .2s, border-color .2s, box-shadow .2s, transform .2s;
}
img {
  max-width: 100%;
  display: block;
}
ul {
  list-style: none;
}
button, input {
  font-family: inherit;
}
:focus-visible {
  outline: 3px solid rgba(232, 53, 43, .4);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ============ 容器 ============ */
.container {
  max-width: 1200px;
}

/* ============ 顶部 header ============ */
.site-header {
  background: #fff;
  box-shadow: 0 6px 24px rgba(12, 22, 39, .05);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.brand-bar {
  padding: 12px 0;
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--text);
}
.brand-logo i {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 13px;
  box-shadow: 0 8px 18px rgba(232, 53, 43, .35);
}
.brand-logo .logo-sub {
  display: block;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
}
.header-search {
  flex: 0 1 360px;
  min-width: 240px;
}
.search-box {
  display: flex;
  align-items: center;
  background: #f2f5fa;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 6px 4px 16px;
  transition: border-color .2s, box-shadow .2s;
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(232, 53, 43, .12);
}
.search-box i {
  color: var(--muted);
  font-size: .85rem;
  margin-right: 6px;
}
.search-box input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: .9rem;
  color: var(--text);
  min-width: 0;
}
.search-box input::placeholder {
  color: #8a93a6;
}
.search-submit {
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: .88rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.search-submit:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 16px rgba(232, 53, 43, .32);
}

/* ============ 频道导航 ============ */
.nav-bar {
  background: var(--deep);
  border-top: 1px solid rgba(255, 255, 255, .04);
}
.category-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  position: relative;
}
.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: .55rem 1.2rem;
  margin: .45rem .35rem .45rem 0;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 600;
  color: rgba(255, 255, 255, .74);
  background: transparent;
  border: none;
  line-height: 1.4;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .1);
}
.nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 6px 16px rgba(232, 53, 43, .38);
}
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.3rem;
  padding: .5rem 1rem;
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, .1);
}

/* ============ 页面横幅 Hero ============ */
.page-banner {
  background-size: cover;
  background-position: center;
  padding: 104px 0 92px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-banner::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(transparent, rgba(244, 246, 250, .4));
  pointer-events: none;
}
.page-banner .container {
  position: relative;
  z-index: 2;
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .88rem;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 1.4rem;
}
.breadcrumb-nav a {
  color: rgba(255, 255, 255, .85);
  border-bottom: 1px solid transparent;
}
.breadcrumb-nav a:hover {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, .45);
}
.breadcrumb-nav i {
  font-size: .7rem;
  color: rgba(255, 255, 255, .55);
}
.breadcrumb-nav .current {
  color: var(--accent);
}
.page-banner h1 {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.28;
  margin: 0 0 1rem;
  letter-spacing: .01em;
}
.page-banner h1 .text-accent {
  color: var(--accent);
}
.page-banner p {
  max-width: 680px;
  font-size: 1.08rem;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 1.8rem;
  line-height: 1.8;
}
.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .82rem 1.7rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s;
  box-shadow: 0 10px 24px rgba(232, 53, 43, .35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(232, 53, 43, .45);
  color: #fff;
}
.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .82rem 1.7rem;
  background: transparent;
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  border: 1.5px solid rgba(255, 255, 255, .35);
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s, border-color .2s, transform .2s;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .7);
  transform: translateY(-3px);
  color: #fff;
}

/* ============ 板块通用 ============ */
.section {
  padding: 88px 0;
}
.bg-white {
  background: #fff;
}
.section-head {
  max-width: 720px;
  margin: 0 auto 46px;
  text-align: center;
}
.section-head.left {
  text-align: left;
  margin-left: 0;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(232, 53, 43, .08);
  color: var(--primary);
  font-weight: 800;
  font-size: .8rem;
  letter-spacing: .08em;
  padding: .35rem 1rem;
  border-radius: 999px;
  margin-bottom: .8rem;
}
.section-head h2 {
  font-size: 2.1rem;
  font-weight: 800;
  margin: .5rem 0 .7rem;
  line-height: 1.3;
}
.section-desc {
  font-size: 1rem;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto;
}

/* ============ 服务保障卡片 ============ */
.assure-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.assure-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 53, 43, .18);
}
.assure-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 15px;
  margin-bottom: 1.1rem;
  box-shadow: 0 10px 20px rgba(232, 53, 43, .28);
}
.assure-card h3 {
  font-size: 1.12rem;
  font-weight: 800;
  margin-bottom: .5rem;
}
.assure-card p {
  font-size: .94rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* ============ 访问方式卡片 ============ */
.access-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.8rem;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  display: flex;
  flex-direction: column;
}
.access-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 53, 43, .15);
}
.access-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  background: rgba(232, 53, 43, .08);
  border-radius: 18px;
  margin-bottom: 1.2rem;
}
.access-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: .6rem;
}
.access-card p {
  font-size: .96rem;
  color: var(--muted);
  flex: 1;
  margin-bottom: 1rem;
}
.access-card a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--primary);
  font-weight: 700;
  font-size: .92rem;
}
.access-card a i {
  transition: transform .2s;
}
.access-card a:hover i {
  transform: translateX(4px);
}

/* ============ 流程步骤 ============ */
.process-section {
  background: var(--bg);
}
.process-step {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.2rem 1.6rem 1.8rem;
  height: 100%;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform .25s, box-shadow .25s;
}
.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.step-num {
  position: absolute;
  top: 1.1rem;
  right: 1.3rem;
  font-size: 2.2rem;
  font-weight: 900;
  color: rgba(232, 53, 43, .10);
  line-height: 1;
}
.step-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: var(--accent);
  background: rgba(255, 184, 0, .12);
  border-radius: 14px;
  margin-bottom: 1rem;
}
.process-step h3 {
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: .55rem;
}
.process-step p {
  font-size: .92rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* ============ 内容卡片 ============ */
.post-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  display: flex;
  flex-direction: column;
}
.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 53, 43, .14);
}
.post-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--deep);
}
.post-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.post-card:hover .post-cover img {
  transform: scale(1.06);
}
.post-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 20, 36, .45), transparent 55%);
  pointer-events: none;
}
.post-badge {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 2;
  background: rgba(11, 20, 36, .72);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: .8rem;
  font-weight: 700;
  padding: .3rem .85rem;
  border-radius: 999px;
}
.post-body {
  padding: 1.5rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.post-body h3 {
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: .6rem;
}
.post-body p {
  font-size: .94rem;
  color: var(--muted);
  margin-bottom: 1.2rem;
  flex: 1;
}
.post-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-weight: 700;
  font-size: .92rem;
  color: var(--primary);
}
.post-link i {
  transition: transform .2s;
}
.post-link:hover i {
  transform: translateX(4px);
}

/* ============ FAQ 手风琴 ============ */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
}
.faq-accordion .accordion-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius) !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s, box-shadow .2s;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
  border-color: rgba(232, 53, 43, .25);
  box-shadow: var(--shadow-md);
}
.faq-accordion .accordion-header {
  border: none;
  background: transparent;
}
.faq-accordion .accordion-button {
  background: #fff;
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
  padding: 1.1rem 1.3rem 1.1rem 1.5rem;
  box-shadow: none;
  border: none;
  border-radius: 0;
  gap: .7rem;
}
.faq-accordion .accordion-button::after {
  background-image: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\f078";
  color: var(--primary);
  font-size: .9rem;
  transition: transform .25s;
  width: auto;
  height: auto;
}
.faq-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: #fff;
  color: var(--primary);
  box-shadow: none;
}
.faq-accordion .accordion-button:focus {
  box-shadow: none;
  border-color: transparent;
}
.faq-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 26px;
  padding: 0 .5rem;
  background: rgba(232, 53, 43, .10);
  color: var(--primary);
  font-size: .78rem;
  font-weight: 800;
  border-radius: 999px;
}
.accordion-body {
  padding: .2rem 1.6rem 1.4rem 1.5rem;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.8;
  background: #fff;
}

/* ============ CTA ============ */
.cta-section {
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 96px 0;
}
.cta-box {
  max-width: 760px;
  margin: 0 auto;
  background: rgba(11, 20, 36, .82);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 28px;
  padding: 3.2rem 2.8rem;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-icon {
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
  background: rgba(255, 184, 0, .14);
  border-radius: 50%;
  margin-bottom: 1.2rem;
}
.cta-box h2 {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: .8rem;
}
.cta-box p {
  color: rgba(255, 255, 255, .8);
  font-size: 1rem;
  margin-bottom: 1.8rem;
}
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .9rem;
}
.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .82rem 1.7rem;
  background: transparent;
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  border: 1.5px solid rgba(255, 255, 255, .4);
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s, border-color .2s, transform .2s;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, .12);
  border-color: #fff;
  transform: translateY(-3px);
  color: #fff;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--deep);
  color: rgba(255, 255, 255, .72);
  padding: 64px 0 0;
  font-size: .93rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand .brand-logo {
  color: #fff;
  margin-bottom: .9rem;
}
.footer-brand .brand-logo .logo-sub {
  color: rgba(255, 255, 255, .45);
}
.footer-brand .brand-logo i {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 8px 18px rgba(232, 53, 43, .3);
}
.footer-brand p {
  font-size: .92rem;
  color: rgba(255, 255, 255, .55);
  line-height: 1.85;
  max-width: 300px;
  margin-bottom: 0;
}
.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: .8rem;
}
.footer-links li {
  margin-bottom: .35rem;
}
.footer-links a {
  color: rgba(255, 255, 255, .58);
  font-size: .92rem;
}
.footer-links a:hover {
  color: #fff;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: .5rem;
  padding: 1.6rem 0 1.4rem;
  font-size: .85rem;
  color: rgba(255, 255, 255, .4);
}

/* ============ Section 徽章/分隔 ============ */
.section-separator {
  height: 1px;
  background: var(--border);
  border: none;
  margin: 0;
}

/* ============ 响应式 ============ */
@media (max-width: 991.98px) {
  .brand-row {
    gap: .6rem;
  }
  .header-search {
    flex: 1 1 300px;
  }
  .page-banner {
    padding: 76px 0 64px;
  }
  .page-banner h1 {
    font-size: 2.2rem;
  }
  .section {
    padding: 68px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 767.98px) {
  .brand-row {
    flex-wrap: wrap;
  }
  .brand-logo {
    font-size: 1.1rem;
  }
  .brand-logo i {
    width: 38px;
    height: 38px;
    font-size: 1.05rem;
    border-radius: 11px;
  }
  .header-search {
    flex: 1 1 100%;
    min-width: 0;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--deep-2);
    padding: .8rem 1rem 1rem;
    border-top: 1px solid rgba(255, 255, 255, .05);
    border-radius: 0 0 18px 18px;
    box-shadow: 0 20px 40px rgba(11, 20, 36, .34);
    gap: 2px;
    z-index: 20;
  }
  .category-nav.open .nav-list {
    display: flex;
  }
  .nav-link,
  .nav-link.active {
    width: 100%;
    margin: 0;
    padding: .7rem 1.2rem;
    border-radius: 12px;
    background: transparent;
    box-shadow: none;
    color: rgba(255, 255, 255, .75);
  }
  .nav-link:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
  }
  .nav-link.active {
    background: rgba(232, 53, 43, .18);
    color: #fff;
  }
  .page-banner h1 {
    font-size: 1.7rem;
  }
  .page-banner p {
    font-size: .98rem;
  }
  .section-head h2 {
    font-size: 1.55rem;
  }
  .cta-box {
    padding: 2.2rem 1.5rem;
  }
  .cta-box h2 {
    font-size: 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 575.98px) {
  .brand-logo .logo-sub {
    display: none;
  }
  .search-submit {
    padding: 8px 14px;
    font-size: .82rem;
  }
  .page-banner {
    padding: 60px 0 52px;
  }
  .banner-actions .btn-primary,
  .banner-actions .btn-ghost-light {
    width: 100%;
    justify-content: center;
  }
  .process-step {
    padding: 1.6rem 1.2rem 1.2rem;
  }
  .post-body {
    padding: 1.3rem 1.2rem;
  }
  .assure-card,
  .access-card {
    padding: 1.6rem 1.2rem;
  }
  .cta-section {
    padding: 60px 0;
  }
}

/* roulang page: article */
:root {
            --primary-900: #081829;
            --primary-800: #0b1f33;
            --primary-700: #132c45;
            --primary-600: #1c3a5c;
            --accent-500: #ff5a36;
            --accent-600: #e94a26;
            --accent-700: #d13d1d;
            --gold-400: #f0b840;
            --success-500: #10b981;
            --bg-body: #f4f6fa;
            --bg-light: #f9fafc;
            --bg-white: #ffffff;
            --text-main: #1e2a38;
            --text-body: #3d4c5c;
            --text-muted: #7a8ba0;
            --text-light: #a5b5c8;
            --border-light: #e8edf3;
            --border-main: #dde4ec;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 3px rgba(11,31,51,0.06);
            --shadow-sm: 0 3px 12px rgba(11,31,51,0.08);
            --shadow-md: 0 8px 30px rgba(11,31,51,0.10);
            --shadow-lg: 0 20px 60px rgba(11,31,51,0.15);
            --font-main: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            color: var(--text-body);
            background: var(--bg-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-700);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-500);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: #c3cede;
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-600);
        }

        .container {
            max-width: 1200px;
        }

        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: relative;
            z-index: 100;
            box-shadow: var(--shadow-xs);
        }
        .brand-bar {
            padding: 18px 0;
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .brand-logo i {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-500), var(--accent-700));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 14px rgba(255, 90, 54, 0.35);
            transition: var(--transition);
        }
        .brand-logo:hover i {
            transform: scale(1.05) rotate(-4deg);
        }
        .brand-logo>span {
            display: flex;
            flex-direction: column;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-800);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .logo-sub {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 1.4px;
            text-transform: uppercase;
        }
        .header-search {
            flex: 1;
            max-width: 420px;
        }
        .search-box {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-full);
            overflow: hidden;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--accent-500);
            box-shadow: 0 0 0 4px rgba(255, 90, 54, 0.12);
            background: #fff;
        }
        .search-box i {
            padding-left: 18px;
            color: var(--text-muted);
            font-size: 14px;
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 10px 12px;
            font-size: 14px;
            outline: none;
            color: var(--text-main);
            min-width: 0;
        }
        .search-submit {
            background: var(--primary-800);
            color: #fff;
            border: none;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .search-submit:hover {
            background: var(--accent-500);
        }

        .channel-nav {
            background: var(--primary-800);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .channel-list {
            display: flex;
            align-items: center;
            gap: 2px;
            margin: 0;
            padding: 0;
            list-style: none;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-list::-webkit-scrollbar {
            display: none;
        }
        .channel-link {
            display: inline-block;
            padding: 14px 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .channel-link.active {
            color: #fff;
            border-bottom-color: var(--accent-500);
            background: rgba(255, 255, 255, 0.05);
            font-weight: 600;
        }

        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 52px 0;
            color: #fff;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 24, 41, 0.94) 30%, rgba(8, 24, 41, 0.62) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            padding: 0;
            margin: 0 0 16px 0;
            list-style: none;
        }
        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
        }
        .breadcrumb-custom a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 11px;
        }
        .breadcrumb-custom .current {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 600;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }
        .banner-badge i {
            color: var(--gold-400);
        }

        .article-section {
            padding: 48px 0 64px;
        }
        .article-detail {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .article-header {
            padding: 36px 40px 0;
        }
        .article-header h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary-800);
            line-height: 1.45;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            padding: 14px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 0;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-meta i {
            color: var(--accent-500);
            font-size: 14px;
        }
        .article-content {
            padding: 30px 40px 36px;
            font-size: 16px;
            line-height: 1.95;
            color: var(--text-body);
        }
        .article-content p {
            margin-bottom: 1.6em;
        }
        .article-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-800);
            margin: 1.6em 0 0.7em;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-light);
            line-height: 1.5;
        }
        .article-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-700);
            margin: 1.4em 0 0.6em;
            line-height: 1.5;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.6em 1.2em;
            padding-left: 0.5em;
        }
        .article-content li {
            margin-bottom: 0.5em;
        }
        .article-content img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin: 1em 0;
            max-width: 100%;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent-500);
            background: var(--bg-light);
            padding: 16px 22px;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-main);
            font-style: normal;
        }
        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-content a {
            color: var(--accent-600);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--accent-700);
        }
        .article-content code {
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            border-radius: 4px;
            padding: 2px 8px;
            font-size: 14px;
            color: var(--accent-700);
        }
        .article-footer {
            padding: 22px 40px 30px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            background: var(--bg-light);
        }
        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
        }
        .tag-label {
            color: var(--text-muted);
            font-weight: 600;
        }
        .tag-label i {
            color: var(--accent-500);
            margin-right: 2px;
        }
        .tag-item {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            background: var(--bg-white);
            border: 1px solid var(--border-main);
            color: var(--text-muted);
            font-size: 12px;
            text-decoration: none;
            transition: var(--transition);
        }
        .tag-item:hover {
            background: var(--primary-800);
            color: #fff;
            border-color: var(--primary-800);
        }
        .article-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-700);
            background: var(--bg-white);
            border: 1px solid var(--border-main);
            text-decoration: none;
            transition: var(--transition);
        }
        .btn-back:hover {
            background: var(--primary-800);
            color: #fff;
            border-color: var(--primary-800);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .article-empty {
            padding: 80px 40px;
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .article-empty .empty-icon {
            display: inline-flex;
            width: 84px;
            height: 84px;
            border-radius: 50%;
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            align-items: center;
            justify-content: center;
            font-size: 34px;
            color: var(--text-light);
            margin-bottom: 22px;
        }
        .article-empty h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary-800);
            margin-bottom: 10px;
        }
        .article-empty p {
            color: var(--text-muted);
            margin-bottom: 26px;
            max-width: 360px;
            margin-left: auto;
            margin-right: auto;
        }

        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            margin-bottom: 24px;
            transition: var(--transition);
        }
        .sidebar-widget:hover {
            box-shadow: var(--shadow-md);
        }
        .sidebar-widget h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-800);
            margin-bottom: 18px;
            padding-left: 14px;
            border-left: 4px solid var(--accent-500);
            line-height: 1.4;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3 i {
            color: var(--accent-500);
            font-size: 15px;
        }
        .side-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .side-list li {
            border-bottom: 1px dashed var(--border-light);
        }
        .side-list li:last-child {
            border-bottom: none;
        }
        .side-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 12px 6px;
            font-size: 14px;
            color: var(--text-body);
            text-decoration: none;
            transition: var(--transition);
        }
        .side-list a:hover {
            color: var(--accent-600);
            padding-left: 12px;
        }
        .side-list .side-title {
            flex: 1;
            min-width: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .side-list .side-date {
            font-size: 12px;
            color: var(--text-light);
            white-space: nowrap;
        }
        .side-list .side-empty {
            display: block;
            padding: 14px 6px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .side-cat-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .side-cat-list li {
            margin-bottom: 10px;
        }
        .side-cat-list li:last-child {
            margin-bottom: 0;
        }
        .side-cat-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            border: 1px solid transparent;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary-700);
            text-decoration: none;
            transition: var(--transition);
        }
        .side-cat-list a:hover {
            background: var(--primary-800);
            color: #fff;
            border-color: var(--primary-800);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }
        .side-cat-list i {
            color: var(--accent-500);
            width: 20px;
            text-align: center;
            transition: var(--transition);
        }
        .side-cat-list a:hover i {
            color: var(--gold-400);
        }
        .side-topic-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 210px;
            display: flex;
            align-items: flex-end;
        }
        .side-topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .side-topic-card:hover img {
            transform: scale(1.06);
        }
        .side-topic-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 24, 41, 0.1) 0%, rgba(8, 24, 41, 0.85) 100%);
        }
        .side-topic-body {
            position: relative;
            z-index: 2;
            padding: 22px;
            color: #fff;
        }
        .side-topic-label {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: var(--accent-500);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            box-shadow: 0 4px 12px rgba(255, 90, 54, 0.35);
        }
        .side-topic-body h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }
        .side-topic-body p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 12px;
        }
        .side-topic-body a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--gold-400);
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }
        .side-topic-body a:hover {
            color: #fff;
        }
        .side-topic-body a i {
            transition: transform 0.3s ease;
        }
        .side-topic-body a:hover i {
            transform: translateX(4px);
        }

        .topic-section {
            padding: 56px 0 64px;
            background: var(--bg-white);
        }
        .section-head {
            margin-bottom: 34px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-600);
            text-transform: uppercase;
            letter-spacing: 1.4px;
            margin-bottom: 10px;
        }
        .section-tag i {
            color: var(--accent-500);
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary-800);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 560px;
            line-height: 1.8;
        }
        .section-head.text-center {
            text-align: center;
        }
        .section-head.text-center p {
            margin-left: auto;
            margin-right: auto;
        }
        .section-head .section-tag {
            justify-content: center;
        }
        .topic-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }
        .topic-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .topic-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.07);
        }
        .topic-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(8, 24, 41, 0.45) 100%);
        }
        .topic-num {
            position: absolute;
            top: 14px;
            left: 14px;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(8, 24, 41, 0.78);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            z-index: 2;
        }
        .topic-body {
            padding: 24px;
        }
        .topic-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-800);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .topic-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-600);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .topic-link i {
            transition: transform 0.3s ease;
        }
        .topic-link:hover {
            color: var(--accent-700);
        }
        .topic-link:hover i {
            transform: translateX(4px);
        }

        .faq-section {
            padding: 64px 0;
            background: var(--bg-light);
        }
        .faq-accordion .accordion-item {
            border: none;
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            background: var(--bg-white);
        }
        .faq-accordion .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-800);
            padding: 20px 24px;
            background: var(--bg-white);
            box-shadow: none;
            line-height: 1.5;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-800);
            color: #fff;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 90, 54, 0.15);
            border-color: transparent;
        }
        .faq-accordion .accordion-button::after {
            opacity: 0.5;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            opacity: 1;
            filter: invert(1);
        }
        .faq-accordion .accordion-body {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.85;
            padding: 20px 24px;
            background: var(--bg-white);
        }

        .cta-section {
            padding: 68px 0;
            background: var(--primary-800) url('/assets/images/backpic/back-3.png') center/cover no-repeat fixed;
            position: relative;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 24, 41, 0.92) 20%, rgba(11, 31, 51, 0.75) 100%);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-inner {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 30px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-accent {
            background: var(--accent-500);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-accent:hover {
            background: var(--accent-600);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 90, 54, 0.4);
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            line-height: 1.4;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .site-footer {
            background: var(--primary-900);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 42px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
        }
        .site-footer .brand-logo>span {
            color: #fff;
        }
        .site-footer .logo-sub {
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a,
        .footer-links span {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
            line-height: 1.6;
        }
        .footer-links a:hover {
            color: var(--accent-500);
            padding-left: 5px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent-500);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .banner-inner {
            animation: fadeInUp 0.6s ease both;
        }

        @media (max-width: 991.98px) {
            .brand-row {
                flex-direction: column;
                gap: 14px;
            }
            .header-search {
                width: 100%;
                max-width: none;
            }
            .search-box input {
                min-width: 0;
            }
            .article-header h1 {
                font-size: 25px;
            }
            .article-content {
                padding: 24px 28px 32px;
            }
            .article-header {
                padding: 28px 28px 0;
            }
            .article-footer {
                padding: 18px 28px 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
            .cta-inner h2 {
                font-size: 27px;
            }
        }
        @media (max-width: 767.98px) {
            .brand-bar {
                padding: 14px 0;
            }
            .brand-logo>span {
                font-size: 17px;
            }
            .page-banner {
                padding: 40px 0;
            }
            .article-section {
                padding: 32px 0 48px;
            }
            .article-header h1 {
                font-size: 22px;
            }
            .article-meta {
                gap: 12px;
            }
            .section-head h2 {
                font-size: 25px;
            }
            .topic-section {
                padding: 44px 0 48px;
            }
            .faq-section {
                padding: 48px 0;
            }
            .cta-section {
                padding: 52px 0;
                background-attachment: scroll;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 575.98px) {
            .brand-logo i {
                width: 38px;
                height: 38px;
                font-size: 17px;
                border-radius: 10px;
            }
            .brand-logo>span {
                font-size: 16px;
            }
            .logo-sub {
                font-size: 9px;
                letter-spacing: 1px;
            }
            .search-submit {
                padding: 10px 14px;
                font-size: 13px;
            }
            .channel-link {
                padding: 13px 14px;
                font-size: 14px;
            }
            .article-header {
                padding: 22px 18px 0;
            }
            .article-header h1 {
                font-size: 20px;
            }
            .article-content {
                padding: 20px 18px 26px;
                font-size: 15px;
                line-height: 1.85;
            }
            .article-footer {
                padding: 16px 18px 22px;
            }
            .article-actions {
                width: 100%;
            }
            .btn-back {
                flex: 1;
                justify-content: center;
            }
            .article-empty {
                padding: 60px 24px;
            }
            .article-empty h2 {
                font-size: 22px;
            }
            .sidebar-widget {
                padding: 20px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-accent,
            .btn-outline-light {
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0b1f3a;
            --primary-light: #132c4e;
            --primary-dark: #071426;
            --accent: #eab308;
            --accent-light: #fbbf24;
            --accent-dark: #ca8a04;
            --bg: #f4f6fb;
            --bg-alt: #ffffff;
            --text-main: #1a2332;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(11, 31, 58, .06);
            --shadow-md: 0 8px 30px rgba(11, 31, 58, .10);
            --shadow-lg: 0 16px 40px rgba(11, 31, 58, .14);
            --spacer: 96px;
            --transition: all .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a:hover {
            color: var(--accent-dark);
        }

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

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

        :focus-visible {
            outline: 3px solid rgba(234, 179, 8, .5);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        /* ========== 统一导航 Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #fff;
            box-shadow: 0 2px 20px rgba(11, 31, 58, .08);
        }

        .brand-bar {
            border-bottom: 1px solid var(--border);
            padding-top: 12px;
            padding-bottom: 12px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: var(--primary);
            font-weight: 800;
            font-size: 22px;
            line-height: 1.2;
        }

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

        .brand-logo>i {
            color: var(--accent);
            font-size: 28px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .brand-logo span {
            display: flex;
            flex-direction: column;
        }

        .logo-sub {
            font-size: 11px;
            letter-spacing: 2px;
            color: var(--text-weak);
            font-weight: 500;
            text-transform: uppercase;
            margin-top: 2px;
        }

        .header-search {
            flex: 1;
            max-width: 420px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 50px;
            border: 1px solid var(--border);
            padding: 5px 5px 5px 16px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(234, 179, 8, .15);
            background: #fff;
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 15px;
        }

        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 8px 10px;
            font-size: 14px;
            color: var(--text-main);
        }

        .search-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .search-submit:hover {
            background: var(--accent-dark);
        }

        /* 频道导航行 */
        .channel-nav {
            background: var(--primary);
        }

        .channel-nav-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            padding-top: 0;
            padding-bottom: 0;
        }

        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }

        .channel-nav-inner a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .65);
            font-size: 15px;
            font-weight: 600;
            padding: 13px 18px;
            border-radius: 8px;
            transition: var(--transition);
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            position: relative;
        }

        .channel-nav-inner a i {
            font-size: 14px;
            opacity: .7;
        }

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

        .channel-nav-inner a.active {
            color: #fff;
            background: rgba(255, 255, 255, .12);
            border-bottom-color: var(--accent);
        }

        /* ========== 分类页 Hero ========== */
        .page-hero {
            position: relative;
            padding: 70px 0 90px;
            background: var(--primary-dark);
            background-image: linear-gradient(rgba(11, 31, 58, .82), rgba(7, 20, 38, .88)), url(/assets/images/backpic/back-2.png);
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: -100px;
            top: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(234, 179, 8, .25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .60);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, .75);
        }

        .hero-breadcrumb a:hover {
            color: var(--accent);
        }

        .hero-breadcrumb i {
            font-size: 11px;
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, .75);
            max-width: 680px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-meta {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, .15);
            padding-top: 22px;
            max-width: 560px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
        }

        .hero-meta-item i {
            color: var(--accent);
            font-size: 18px;
        }

        /* ========== 分类介绍 ========== */
        .intro-section {
            padding: 90px 0;
            background: var(--bg);
        }

        .intro-card {
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            align-items: stretch;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .intro-image {
            flex: 1 1 45%;
            min-height: 340px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .intro-image::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 31, 58, .2), transparent);
        }

        .intro-content {
            flex: 1 1 55%;
            padding: 48px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .intro-content .tag {
            display: inline-block;
            background: rgba(234, 179, 8, .12);
            color: var(--accent-dark);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            align-self: flex-start;
        }

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

        .intro-content p {
            color: var(--text-weak);
            line-height: 1.85;
            margin-bottom: 20px;
        }

        .intro-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 20px;
            margin: 10px 0 22px;
        }

        .intro-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-main);
        }

        .intro-list li i {
            color: var(--accent-dark);
            font-size: 13px;
        }

        /* ========== 教程卡片区域 ========== */
        .tutorial-section {
            padding: 90px 0;
            background: var(--bg);
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }

        .section-head .tag {
            display: inline-block;
            background: rgba(234, 179, 8, .12);
            color: var(--accent-dark);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

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

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

        .tutorial-card {
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .tutorial-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(234, 179, 8, .35);
        }

        .tutorial-card .card-img-wrap {
            position: relative;
            height: 210px;
            overflow: hidden;
        }

        .tutorial-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .tutorial-card .card-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 31, 58, .35), transparent 60%);
        }

        .card-body-content {
            padding: 26px 24px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-tag {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .tutorial-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .tutorial-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        .card-link i {
            font-size: 13px;
        }

        /* ========== 流程步骤 ========== */
        .steps-section {
            padding: 90px 0;
            background: var(--primary);
            background-image: linear-gradient(rgba(11, 31, 58, .95), rgba(7, 20, 38, .97)), url(/assets/images/backpic/back-1.png);
            background-size: cover;
            background-position: center;
            color: #fff;
            position: relative;
        }

        .steps-section .section-head h2 {
            color: #fff;
        }

        .steps-section .section-head p {
            color: rgba(255, 255, 255, .65);
        }

        .steps-section .section-head .tag {
            background: rgba(234, 179, 8, .2);
            color: var(--accent);
        }

        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .step-item {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .10);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            backdrop-filter: blur(4px);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, .10);
            border-color: rgba(234, 179, 8, .4);
            transform: translateY(-5px);
        }

        .step-number {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 22px;
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(234, 179, 8, .25);
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            line-height: 1.7;
        }

        .step-arrow {
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 18px;
            z-index: 2;
            opacity: .6;
        }

        /* ========== 数据统计 ========== */
        .stats-section {
            padding: 80px 0;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .stat-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius-md);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(234, 179, 8, .3);
        }

        .stat-icon {
            font-size: 32px;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

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

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

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(234, 179, 8, .35);
            box-shadow: var(--shadow-sm);
        }

        .faq-title {
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-alt);
        }

        .faq-title i {
            color: var(--accent-dark);
            transition: transform .3s ease;
            font-size: 15px;
        }

        .faq-item.open .faq-title i {
            transform: rotate(45deg);
        }

        .faq-content {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            color: var(--text-weak);
            line-height: 1.8;
            font-size: 15px;
        }

        .faq-item.open .faq-content {
            padding: 0 28px 22px;
            max-height: 400px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-alt);
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-lg);
            padding: 50px 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            color: #fff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(234, 179, 8, .15);
        }

        .cta-card h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .cta-card p {
            color: rgba(255, 255, 255, .70);
            font-size: 15px;
            margin-bottom: 0;
            max-width: 550px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-accent:hover {
            background: var(--accent-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(234, 179, 8, .3);
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .45);
            color: #fff;
            border-radius: 50px;
            padding: 11px 26px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ========== 页脚 Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .6);
            padding: 70px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            max-width: 280px;
            line-height: 1.8;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .5);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding: 25px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .32);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

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

            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .intro-image {
                min-height: 260px;
            }

            .intro-content {
                padding: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacer: 56px;
            }

            .brand-row {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }

            .brand-logo {
                justify-content: center;
            }

            .header-search {
                max-width: 100%;
            }

            .channel-nav-inner a {
                padding: 12px 14px;
                font-size: 14px;
            }

            .page-hero {
                padding: 50px 0 64px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .cta-card {
                padding: 36px 30px;
                flex-direction: column;
                text-align: center;
            }

            .cta-actions {
                justify-content: center;
            }

            .section-head h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .tutorial-grid {
                grid-template-columns: 1fr;
            }

            .steps-row {
                grid-template-columns: 1fr;
            }

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

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

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

            .step-arrow {
                display: none;
            }

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

            .search-submit {
                padding: 8px 14px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0f2557;
            --primary-dark: #091839;
            --primary-light: #1c3a7a;
            --secondary: #ff6b35;
            --secondary-light: #ff8c5a;
            --accent: #00c2a8;
            --bg-light: #f4f6fb;
            --bg-white: #ffffff;
            --text-main: #1c2333;
            --text-weak: #667085;
            --border-light: #e4e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(15, 37, 87, 0.07);
            --shadow-md: 0 8px 24px rgba(15, 37, 87, 0.10);
            --shadow-lg: 0 16px 40px rgba(15, 37, 87, 0.14);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        .section-pad {
            padding: 80px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-weak);
            margin-bottom: 40px;
            max-width: 720px;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--secondary), #ff9a5a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .btn {
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: all .3s ease;
            border: 2px solid transparent;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }

        .btn-primary-custom:hover {
            background: #e5551f;
            border-color: #e5551f;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
        }

        .btn-outline-custom {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light-custom {
            background: var(--primary);
            color: #fff;
        }

        .btn-light-custom:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(15, 37, 87, 0.25);
        }

        /* Header 品牌栏 */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 1px 10px rgba(15, 37, 87, 0.05);
        }

        .brand-bar {
            padding: 14px 24px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: var(--primary);
        }

        .brand-logo i {
            font-size: 26px;
            color: var(--secondary);
            background: rgba(255, 107, 53, 0.12);
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
        }

        .brand-logo span {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }

        .brand-logo .logo-sub {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-weak);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-top: 2px;
        }

        .header-search {
            flex: 0 0 360px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 4px 4px 4px 18px;
            border: 1px solid var(--border-light);
            transition: border-color .3s, box-shadow .3s;
        }

        .search-box:focus-within {
            border-color: var(--secondary);
            box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.12);
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 14px;
        }

        .search-box input {
            border: none;
            background: transparent;
            flex: 1;
            font-size: 14px;
            padding: 8px 10px;
            color: var(--text-main);
            outline: none;
            min-width: 0;
        }

        .search-box input::placeholder {
            color: #9aa4b5;
        }

        .search-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 8px 22px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background .3s;
        }

        .search-submit:hover {
            background: var(--primary-light);
        }

        /* 频道导航 */
        .main-nav {
            background: var(--primary);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 3px solid var(--secondary);
        }

        .main-nav .navbar-nav {
            display: flex;
            flex-wrap: wrap;
        }

        .main-nav .nav-link {
            color: rgba(255, 255, 255, 0.78);
            font-weight: 600;
            font-size: 14px;
            padding: 14px 20px !important;
            position: relative;
            transition: color .3s, background .3s;
            letter-spacing: 0.3px;
        }

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

        .main-nav .nav-link.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--secondary);
        }

        .navbar-toggler {
            border: none;
            color: #fff;
            font-size: 22px;
            padding: 8px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: none;
        }

        /* Hero 横幅 */
        .page-hero {
            background: var(--primary);
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 90px 0;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(9, 24, 57, 0.92) 0%, rgba(9, 24, 57, 0.72) 45%, rgba(9, 24, 57, 0.45) 100%);
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 107, 53, 0.2);
            border: 1px solid rgba(255, 107, 53, 0.4);
            color: var(--secondary-light);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.25;
        }

        .page-hero p {
            font-size: 17px;
            max-width: 560px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .hero-meta {
            position: absolute;
            bottom: 30px;
            right: 30px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 14px;
            padding: 14px 22px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-meta i {
            color: var(--secondary-light);
            margin-right: 6px;
        }

        /* 统计卡片 */
        .stats-section {
            margin-top: -56px;
            position: relative;
            z-index: 5;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: transform .3s, box-shadow .3s;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .stat-card .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-card .label {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* 通用卡片网格 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .safety-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .safety-card .card-img {
            height: 170px;
            width: 100%;
            object-fit: cover;
            border-bottom: 3px solid var(--secondary);
        }

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

        .safety-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            color: var(--secondary);
            background: rgba(255, 107, 53, 0.1);
            padding: 4px 14px;
            border-radius: 50px;
            align-self: flex-start;
            margin-bottom: 12px;
        }

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

        .safety-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        /* 流程步骤 */
        .flow-section {
            background: var(--primary);
            padding: 80px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }

        .flow-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(9, 24, 57, 0.88);
        }

        .flow-section .container {
            position: relative;
            z-index: 2;
        }

        .flow-section .section-title {
            color: #fff;
        }

        .flow-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .flow-step {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            position: relative;
            backdrop-filter: blur(6px);
            transition: transform .3s, background .3s;
        }

        .flow-step:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }

        .flow-step .step-num {
            font-size: 13px;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: 1px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .flow-step .step-num::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--secondary);
        }

        .flow-step i {
            font-size: 26px;
            color: var(--secondary-light);
            margin-bottom: 14px;
            display: block;
        }

        .flow-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .flow-step p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
        }

        /* 自检清单 */
        .checklist-section {
            background: #fff;
            padding: 80px 0;
        }

        .checklist-wrap {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 44px;
            border: 1px solid var(--border-light);
        }

        .checklist-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .checklist-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 18px 20px;
            border: 1px solid var(--border-light);
            transition: border-color .3s, box-shadow .3s;
        }

        .checklist-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-sm);
        }

        .checklist-item i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .checklist-item p {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.6;
            font-weight: 500;
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-light);
        }

        .faq-container {
            max-width: 860px;
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: #fff;
            padding: 20px 24px;
            transition: color .3s;
        }

        .accordion-button:not(.collapsed) {
            background: var(--primary);
            color: #fff;
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .accordion-button::after {
            transition: transform .3s;
        }

        .accordion-body {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            border-top: 1px solid var(--border-light);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 64px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.15);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-logo span {
            color: #fff;
        }

        .footer-brand .brand-logo .logo-sub {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
            max-width: 300px;
            margin-bottom: 0;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color .3s, padding-left .3s;
        }

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

        .footer-links span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom {
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .header-search {
                flex-basis: 100%;
            }

            .brand-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .hero-meta {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: 56px 0;
            }

            .flow-section {
                padding: 56px 0;
            }

            .checklist-section {
                padding: 56px 0;
            }

            .faq-section {
                padding: 56px 0;
            }

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

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

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

            .checklist-wrap {
                padding: 24px;
            }

            .page-hero {
                padding: 64px 0;
            }

            .page-hero h1 {
                font-size: 28px;
            }

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

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

            .main-nav .nav-link {
                padding: 12px 16px !important;
                font-size: 13px;
            }

            .brand-logo span {
                font-size: 17px;
            }

            .brand-logo i {
                width: 38px;
                height: 38px;
                font-size: 20px;
            }

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

            .cta-section .container {
                flex-direction: column;
                align-items: flex-start;
            }

            .stats-section {
                margin-top: -40px;
            }

            .stat-card {
                padding: 18px 14px;
            }

            .stat-card .num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .page-hero {
                padding: 48px 0;
            }

            .page-hero h1 {
                font-size: 23px;
            }

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

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

            .brand-row {
                gap: 12px;
            }

            .header-search {
                flex-basis: 100%;
            }

            .search-submit {
                padding: 7px 16px;
                font-size: 13px;
            }

            .section-title {
                font-size: 21px;
            }

            .section-subtitle {
                font-size: 14px;
            }

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