/* roulang page: index */
:root {
  --primary: #0b1c34;
  --primary-dark: #071426;
  --primary-light: #12294a;
  --accent: #f0a435;
  --accent-dark: #d98a1f;
  --accent-light: #ffd28a;
  --bg: #f4f6fa;
  --bg-alt: #e8edf4;
  --white: #ffffff;
  --text: #21344d;
  --text-weak: #60718a;
  --border: #dfe5ee;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(11,28,52,.06);
  --shadow-md: 0 10px 32px rgba(11,28,52,.1);
  --shadow-lg: 0 20px 50px rgba(11,28,52,.16);
  --transition: .25s ease;
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  padding-left: 280px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4, h5 { line-height: 1.3; margin: 0 0 .5em; font-weight: 700; }
p { margin: 0 0 1em; }

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

.section { padding: 84px 0; }
.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-dark);
  background: rgba(240,164,53,.12);
  padding: 5px 14px;
  border-radius: 30px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
.section-head p { color: var(--text-weak); font-size: 16px; }

.btn-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: 30px;
  border: none;
  transition: all var(--transition);
  box-shadow: 0 8px 20px rgba(240,164,53,.28);
}
.btn-brand:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(240,164,53,.4); color: var(--primary-dark); }

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 30px;
  border-radius: 30px;
  box-shadow: 0 10px 30px rgba(240,164,53,.35);
  transition: all var(--transition);
}
.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(240,164,53,.5); color: var(--primary-dark); }
.btn-hero-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.1);
  color: #fff;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,.35);
  backdrop-filter: blur(6px);
  transition: all var(--transition);
}
.btn-hero-ghost:hover { background: rgba(255,255,255,.22); color: #fff; transform: translateY(-3px); }

/* ===== 左侧导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: linear-gradient(180deg, #0b1c34 0%, #0d2140 55%, #081527 100%);
  display: flex;
  flex-direction: column;
  padding: 30px 22px 24px;
  z-index: 1040;
  box-shadow: 4px 0 30px rgba(7,16,32,.18);
}
.header-top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}
.brand-mark {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 14px;
  font-size: 20px;
  color: var(--primary-dark);
  box-shadow: 0 6px 18px rgba(240,164,53,.4);
}
.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.2;
}
.brand-name em {
  font-style: normal;
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,.6);
  letter-spacing: .14em;
}
.brand-tagline {
  color: rgba(255,255,255,.4);
  font-size: 12px;
  letter-spacing: .08em;
  margin-top: 16px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 12px;
  color: #fff;
  font-size: 18px;
  transition: all var(--transition);
}
.nav-toggle:hover { background: rgba(255,255,255,.18); }

.main-nav {
  margin-top: 36px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.main-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  border-radius: 12px;
  color: rgba(255,255,255,.68);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
}
.main-nav .nav-link i {
  width: 22px;
  text-align: center;
  font-size: 16px;
}
.main-nav .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
  transform: translateX(4px);
}
.main-nav .nav-link.active {
  color: var(--primary-dark);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 8px 24px rgba(240,164,53,.3);
  font-weight: 700;
}
.main-nav .nav-link:focus-visible {
  outline: 3px solid rgba(240,164,53,.5);
  outline-offset: 2px;
}

.nav-extra { margin-top: 20px; }
.support-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
}
.support-card i {
  font-size: 22px;
  color: var(--accent);
}
.support-card div { display: flex; flex-direction: column; }
.support-card strong { color: #fff; font-size: 14px; }
.support-card span { color: rgba(255,255,255,.5); font-size: 12px; }
.nav-extra .btn-brand {
  width: 100%;
  justify-content: center;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(7,16,32,.94) 0%, rgba(7,16,32,.78) 42%, rgba(7,16,32,.4) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-content { max-width: 640px; color: #fff; padding: 120px 0; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--accent-light);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 30px;
  padding: 7px 18px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  letter-spacing: .02em;
  margin-bottom: 14px;
  color: #fff;
}
.hero-sub {
  font-size: 17px;
  color: rgba(255,255,255,.85);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-points {
  display: flex;
  gap: 30px;
  margin-top: 52px;
}
.hero-points .point { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.8); font-size: 14px; }
.hero-points .point i { color: var(--accent); font-size: 18px; }

/* ===== 统计条 ===== */
.stats-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
}
.stat-item {
  text-align: center;
  padding: 12px 8px;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  display: block;
  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;
}

/* ===== 特性卡片 ===== */
.features-section { background: var(--white); }
.feature-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  height: 100%;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
  background: var(--white);
}
.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  margin-bottom: 22px;
  font-size: 22px;
}
.feature-icon.icon-blue { background: rgba(30,80,160,.12); color: #1e50a0; }
.feature-icon.icon-gold { background: rgba(240,164,53,.14); color: var(--accent-dark); }
.feature-icon.icon-green { background: rgba(0,170,120,.12); color: #00aa78; }
.feature-icon.icon-purple { background: rgba(120,90,220,.12); color: #785adc; }
.feature-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-weak); margin-bottom: 0; }

/* ===== 分类卡片 ===== */
.category-section { background: var(--bg); }
.cat-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
}
.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(240,164,53,.4);
}
.cat-img { position: relative; height: 220px; overflow: hidden; }
.cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cat-card:hover .cat-img img { transform: scale(1.06); }
.cat-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,16,32,0) 30%, rgba(7,16,32,.18) 100%);
}
.cat-badge {
  position: absolute;
  z-index: 2;
  top: 16px;
  left: 16px;
  background: rgba(11,28,52,.82);
  color: var(--accent-light);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 6px 14px;
  border-radius: 30px;
  backdrop-filter: blur(4px);
}
.cat-body { padding: 24px 26px 30px; }
.cat-body h3 { font-size: 20px; color: var(--primary); margin-bottom: 8px; }
.cat-body p { font-size: 14px; color: var(--text-weak); margin-bottom: 18px; }
.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-dark);
  transition: gap var(--transition);
}
.cat-card:hover .cat-link { gap: 14px; }

/* ===== 资讯列表 ===== */
.news-section { background: var(--white); }
.news-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.news-list { display: flex; flex-direction: column; }
.news-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--white);
  transition: all var(--transition);
}
.news-row:last-child { border-bottom: none; }
.news-row:hover { background: #fafbfd; box-shadow: inset 4px 0 0 var(--accent); }
.news-main { display: flex; align-items: flex-start; gap: 16px; flex: 1; min-width: 0; }
.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  background: rgba(240,164,53,.12);
  border-radius: 20px;
  padding: 4px 12px;
  margin-top: 3px;
  white-space: nowrap;
}
.news-text { min-width: 0; }
.news-text h3 {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-text p {
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.news-time { font-size: 13px; color: var(--text-weak); white-space: nowrap; }
.news-arrow {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 50%;
  color: var(--text-weak);
  font-size: 14px;
  transition: all var(--transition);
}
.news-row:hover .news-arrow {
  background: var(--accent);
  color: var(--primary-dark);
  transform: translateX(4px);
}
.news-empty {
  padding: 70px 30px;
  text-align: center;
  color: var(--text-weak);
}
.news-empty i { font-size: 42px; margin-bottom: 16px; color: var(--border); }
.news-empty p { margin-bottom: 0; font-size: 15px; }

/* ===== 步骤流程 ===== */
.steps-section {
  position: relative;
  background: linear-gradient(120deg, rgba(7,16,32,.94), rgba(11,28,52,.9)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
}
.steps-section .eyebrow { background: rgba(240,164,53,.16); color: var(--accent-light); }
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head p { color: rgba(255,255,255,.7); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.step-item {
  position: relative;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 40px 30px 34px;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}
.step-item:hover { background: rgba(255,255,255,.12); transform: translateY(-6px); }
.step-num {
  position: absolute;
  top: 22px;
  right: 26px;
  font-size: 46px;
  font-weight: 800;
  color: rgba(255,255,255,.1);
  line-height: 1;
}
.step-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 18px;
  font-size: 24px;
  color: var(--primary-dark);
  margin-bottom: 22px;
  box-shadow: 0 10px 26px rgba(240,164,53,.35);
}
.step-item h3 { color: #fff; font-size: 18px; margin-bottom: 10px; }
.step-item p { color: rgba(255,255,255,.65); font-size: 14px; margin-bottom: 0; }

/* ===== 图文区块 ===== */
.browse-section { background: var(--white); }
.browse-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.browse-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.browse-img img { width: 100%; object-fit: cover; }
.browse-content .section-head { margin-bottom: 20px; }
.browse-content .section-head h2 { font-size: 30px; }
.check-list { list-style: none; padding: 0; margin: 20px 0 30px; }
.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text);
  padding: 8px 0;
}
.check-list li i { color: var(--accent-dark); font-size: 16px; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.custom-accordion .accordion-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden;
  margin-bottom: 14px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.custom-accordion .accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 18px 22px;
  background: var(--white);
  box-shadow: none;
  border: none;
}
.custom-accordion .accordion-button:not(.collapsed) {
  background: #f8fafd;
  color: var(--primary);
}
.custom-accordion .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(240,164,53,.2);
}
.custom-accordion .accordion-button::after {
  background-size: 14px;
}
.custom-accordion .accordion-body {
  padding: 0 22px 20px;
  color: var(--text-weak);
  line-height: 1.8;
  font-size: 15px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(115deg, rgba(7,16,32,.93), rgba(11,28,52,.82)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
}
.cta-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-lg);
  padding: 56px;
  text-align: center;
  backdrop-filter: blur(10px);
  max-width: 860px;
  margin: 0 auto;
}
.cta-card .eyebrow { background: rgba(240,164,53,.16); color: var(--accent-light); }
.cta-card h2 { color: #fff; font-size: 34px; margin-bottom: 14px; }
.cta-card p { color: rgba(255,255,255,.75); font-size: 16px; margin-bottom: 34px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-cta-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 700;
  padding: 13px 30px;
  border-radius: 30px;
  transition: all var(--transition);
}
.btn-cta-light:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(240,164,53,.4); color: var(--primary-dark); }
.btn-cta-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-weight: 600;
  padding: 13px 30px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,.4);
  transition: all var(--transition);
}
.btn-cta-outline:hover { background: rgba(255,255,255,.1); color: #fff; transform: translateY(-3px); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.7);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  display: inline-block;
  margin-bottom: 14px;
}
.footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 16px; }
.footer-safe {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--accent-light);
  background: rgba(255,255,255,.06);
  padding: 7px 14px;
  border-radius: 30px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: 14px;
  padding: 5px 0;
  transition: all var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact { font-size: 14px; margin-bottom: 8px; color: rgba(255,255,255,.6); }
.footer-contact i { color: var(--accent); margin-right: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 26px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1199.98px) {
  .hero h1 { font-size: 44px; }
  .stats-grid { gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 991.98px) {
  body { padding-left: 0; }
  .site-header {
    position: sticky;
    top: 0;
    width: 100%;
    height: auto;
    min-height: 58px;
    padding: 10px 16px;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    box-shadow: 0 6px 24px rgba(7,16,32,.22);
  }
  .header-top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }
  .brand-logo { gap: 10px; }
  .brand-mark { width: 38px; height: 38px; font-size: 17px; }
  .brand-name { font-size: 18px; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    width: 100%;
    flex: none;
    margin-top: 12px;
    padding: 10px;
    background: rgba(255,255,255,.07);
    border-radius: 16px;
  }
  .main-nav.open { display: flex; }
  .main-nav .nav-link { padding: 12px 16px; }
  .nav-extra { display: none; }
  .hero { min-height: 520px; }
  .hero-content { padding: 90px 0; }
  .hero h1 { font-size: 40px; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .browse-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 767.98px) {
  .section { padding: 60px 0; }
  .site-container { padding: 0 18px; }
  .hero { min-height: 460px; }
  .hero-content { padding: 64px 0; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-hero-primary, .btn-hero-ghost { justify-content: center; }
  .hero-points { flex-wrap: wrap; gap: 12px; margin-top: 32px; }
  .hero-points .point { font-size: 13px; }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 12px;
    padding: 28px 0;
  }
  .stat-item { border-right: none; padding: 8px; }
  .stat-num { font-size: 30px; }
  .section-head h2 { font-size: 26px; }
  .section-head { margin-bottom: 32px; }
  .feature-card { padding: 24px 20px; }
  .news-row { flex-direction: column; align-items: flex-start; gap: 10px; padding: 18px 18px; }
  .news-main { width: 100%; flex-wrap: wrap; }
  .news-text h3 { white-space: normal; -webkit-line-clamp: 2; }
  .news-text p { -webkit-line-clamp: 2; }
  .news-meta { width: 100%; justify-content: space-between; }
  .news-cat { margin-top: 0; }
  .cta-section { padding: 60px 0; }
  .cta-card { padding: 36px 22px; }
  .cta-card h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .site-footer { padding: 48px 0 24px; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 30px; }
  .stats-grid { gap: 8px; }
  .cat-body { padding: 18px; }
  .step-item { padding: 28px 20px; }
  .footer-bottom { padding-top: 20px; }
  .news-time { font-size: 12px; }
}

/* roulang page: category1 */
:root {
            --pri: #1c2b52;
            --pri-deep: #101d3a;
            --pri-soft: #e9edf7;
            --acc: #e7952e;
            --acc-dark: #c97c1b;
            --acc-soft: #fdf2e2;
            --bg: #f5f6fb;
            --card: #ffffff;
            --tx: #1e2735;
            --tx-weak: #68758c;
            --border: #e3e9f2;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 10px 36px rgba(15, 26, 54, 0.08);
            --transition: all 0.28s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--tx);
            line-height: 1.7;
            letter-spacing: .2px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--acc);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            background: none;
            border: none;
            font-family: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5 {
            line-height: 1.4;
            font-weight: 700;
            color: var(--pri-deep);
        }
        .site-wrapper {
            display: flex;
            min-height: 100vh;
        }
        /* ===== 左侧竖向导航 ===== */
        .site-header {
            width: 264px;
            position: fixed;
            inset: 0 auto 0 0;
            background: var(--pri-deep);
            display: flex;
            flex-direction: column;
            padding: 26px 20px 22px;
            z-index: 1040;
            border-right: 1px solid rgba(255, 255, 255, .08);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 28px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }
        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--acc), #ffb95e);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .brand-name {
            font-size: 19px;
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .brand-name em {
            display: block;
            font-style: normal;
            font-size: 12px;
            color: rgba(255, 255, 255, .55);
            letter-spacing: 2px;
            margin-top: 2px;
        }
        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 22px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        .main-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 6px;
            flex: 1;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 12px;
            color: rgba(255, 255, 255, .72);
            font-size: 15px;
            font-weight: 500;
            background: transparent;
            position: relative;
        }
        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
            transform: translateX(2px);
        }
        .nav-link.active {
            background: linear-gradient(120deg, var(--acc), #f0ac55);
            color: #1b2200;
            box-shadow: 0 6px 18px rgba(231, 149, 46, .35);
        }
        .nav-extra {
            margin-top: 18px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .support-card {
            display: flex;
            gap: 10px;
            align-items: center;
            padding: 14px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 14px;
            color: #fff;
        }
        .support-card i {
            font-size: 18px;
            color: var(--acc);
        }
        .support-card strong {
            display: block;
            font-size: 14px;
        }
        .support-card span {
            font-size: 12px;
            color: rgba(255, 255, 255, .55);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--acc), #f2b25b);
            color: #1d2100;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 0 8px 22px rgba(231, 149, 46, .35);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-brand:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(231, 149, 46, .45);
            color: #111;
        }
        a:focus-visible,
        button:focus-visible,
        .btn-brand:focus-visible {
            outline: 3px solid rgba(231, 149, 46, .5);
            outline-offset: 2px;
        }
        /* ===== 内容区 ===== */
        .main-content {
            margin-left: 264px;
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .site-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
            width: 100%;
        }
        /* ===== Banner ===== */
        .page-banner {
            background: linear-gradient(120deg, rgba(12, 22, 48, .92), rgba(28, 45, 82, .84)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            color: #fff;
            padding: 84px 0 68px;
            position: relative;
        }
        .page-banner .site-container {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .breadcrumb-nav {
            display: flex;
            gap: 10px;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .8);
        }
        .breadcrumb-nav a:hover {
            color: var(--acc);
        }
        .breadcrumb-nav .sep {
            opacity: .5;
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            color: #fff;
            width: fit-content;
        }
        .page-banner h1 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin: 4px 0 0;
        }
        .page-banner p {
            max-width: 680px;
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            line-height: 1.8;
        }
        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-white {
            background: #fff;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--acc-soft);
            color: var(--acc-dark);
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title {
            font-size: 30px;
            margin: 14px 0 10px;
            font-weight: 800;
            color: var(--pri-deep);
        }
        .section-sub {
            color: var(--tx-weak);
            max-width: 680px;
            font-size: 15px;
            margin: 0 auto;
            line-height: 1.8;
        }
        /* ===== 平台介绍 ===== */
        .intro-card {
            display: flex;
            gap: 40px;
            align-items: center;
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .intro-media {
            flex: 0 0 46%;
        }
        .intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }
        .intro-text {
            padding: 44px 44px 44px 0;
        }
        .intro-text .section-tag {
            margin-bottom: 4px;
        }
        .intro-text h2 {
            font-size: 27px;
            margin: 12px 0 16px;
        }
        .intro-text p {
            color: var(--tx-weak);
            margin-bottom: 14px;
            font-size: 15px;
            line-height: 1.8;
        }
        .intro-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 20px;
        }
        .intro-point {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            background: var(--bg);
            border-radius: 12px;
            padding: 12px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--pri);
        }
        .intro-point i {
            color: var(--acc);
            margin-top: 3px;
        }
        /* ===== 新手流程 ===== */
        .steps-section {
            background: var(--pri-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(231, 149, 46, .25), transparent 70%);
            border-radius: 50%;
        }
        .steps-section .section-title {
            color: #fff;
        }
        .steps-section .section-sub {
            color: rgba(255, 255, 255, .6);
        }
        .steps-section .section-tag {
            background: rgba(231, 149, 46, .18);
            color: #f0b96a;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
        }
        .step-item {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-4px);
        }
        .step-num {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--acc);
            color: #1a1a00;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 16px;
        }
        .step-item h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 8px;
        }
        .step-item p {
            color: rgba(255, 255, 255, .68);
            font-size: 14px;
            line-height: 1.7;
        }
        /* ===== 指南分类 ===== */
        .guide-card {
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border);
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(20, 35, 70, .14);
        }
        .guide-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .guide-body {
            padding: 22px;
        }
        .guide-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }
        .guide-body p {
            font-size: 14px;
            color: var(--tx-weak);
            margin-bottom: 14px;
            line-height: 1.7;
        }
        .guide-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--acc-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .guide-link:hover {
            gap: 10px;
            color: var(--acc);
        }
        /* ===== 热门教程 ===== */
        .tutorial-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .tutorial-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 16px 22px;
            transition: var(--transition);
            box-shadow: 0 2px 10px rgba(15, 26, 54, .04);
        }
        .tutorial-item:hover {
            border-color: var(--acc);
            transform: translateX(6px);
            box-shadow: 0 8px 20px rgba(15, 26, 54, .08);
            background: #fff;
        }
        .tutorial-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--pri-soft);
            color: var(--pri);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }
        .tutorial-info {
            flex: 1;
            min-width: 0;
        }
        .tutorial-info h3 {
            font-size: 16px;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .tutorial-info span {
            font-size: 13px;
            color: var(--tx-weak);
        }
        .tutorial-badge {
            font-size: 12px;
            background: var(--acc-soft);
            color: var(--acc-dark);
            padding: 4px 10px;
            border-radius: 999px;
            font-weight: 600;
            white-space: nowrap;
        }
        /* ===== 进阶资源 ===== */
        .resource-card {
            display: flex;
            gap: 22px;
            align-items: center;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
        }
        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 14px 34px rgba(20, 35, 70, .12);
        }
        .resource-card img {
            width: 120px;
            height: 120px;
            border-radius: 14px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .resource-card h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }
        .resource-card p {
            font-size: 14px;
            color: var(--tx-weak);
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .resource-card .btn-brand {
            padding: 8px 16px;
            font-size: 13px;
        }
        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 14px !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--card) !important;
            box-shadow: 0 2px 10px rgba(15, 26, 54, .04);
        }
        .accordion-button {
            background: var(--card) !important;
            color: var(--tx) !important;
            font-weight: 600;
            padding: 18px 22px;
            box-shadow: none !important;
            font-size: 15px;
        }
        .accordion-button:not(.collapsed) {
            color: var(--acc-dark) !important;
            background: var(--acc-soft) !important;
        }
        .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-button::after {
            background-size: 14px;
        }
        .accordion-body {
            color: var(--tx-weak);
            font-size: 14px;
            padding: 6px 22px 22px;
            line-height: 1.8;
        }
        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
        }
        .cta-box {
            background: linear-gradient(130deg, var(--pri-deep), var(--pri));
            border-radius: 24px;
            padding: 64px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(231, 149, 46, .45), transparent 70%);
            border-radius: 50%;
        }
        .cta-box h2 {
            color: #fff;
            font-size: 30px;
            margin-bottom: 12px;
        }
        .cta-box p {
            color: rgba(255, 255, 255, .75);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 15px;
        }
        .cta-box .btn-brand {
            position: relative;
            z-index: 2;
            font-size: 15px;
            padding: 14px 28px;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--pri-deep);
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 0;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 340px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-safe {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 16px;
            font-size: 13px;
            background: rgba(255, 255, 255, .08);
            padding: 8px 14px;
            border-radius: 999px;
            color: rgba(255, 255, 255, .75);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--acc);
        }
        .footer-contact {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .42);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .site-container {
                padding: 0 30px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991.98px) {
            .site-wrapper {
                flex-direction: column;
            }
            .site-header {
                position: relative;
                width: 100%;
                padding: 16px 24px;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                padding: 16px 0 6px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-extra {
                display: flex;
                flex-direction: column;
                margin-top: 10px;
                padding-bottom: 8px;
            }
            .main-content {
                margin-left: 0;
            }
            .intro-card {
                flex-direction: column;
                gap: 0;
            }
            .intro-media {
                width: 100%;
                flex: auto;
            }
            .intro-media img {
                min-height: 240px;
            }
            .intro-text {
                padding: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .resource-card {
                flex-direction: column;
                text-align: center;
            }
            .resource-card img {
                width: 100%;
                height: 180px;
            }
            .page-banner {
                padding: 60px 0;
            }
            .page-banner h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 767.98px) {
            .site-container {
                padding: 0 20px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .tutorial-item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 14px 16px;
            }
            .tutorial-info h3 {
                white-space: normal;
            }
            .cta-box {
                padding: 44px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .intro-points {
                grid-template-columns: 1fr;
            }
            .page-banner p {
                font-size: 14px;
            }
            .brand-name {
                font-size: 17px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1e5eff;
            --primary-dark: #0e3fa8;
            --primary-light: #eef3ff;
            --accent: #f5a623;
            --accent-light: #fef3e2;
            --nav-bg: #0d1830;
            --bg-body: #f4f6fb;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 12px rgba(15, 23, 42, .05);
            --shadow-md: 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-lg: 0 20px 48px rgba(15, 23, 42, .12);
            --transition: all .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

        a {
            transition: var(--transition);
        }

        img {
            max-width: 100%;
        }

        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .content-wrap {
            flex: 1;
            margin-left: 280px;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
        }

        /* ===== Header 左侧导航 ===== */
        .site-header {
            width: 280px;
            height: 100vh;
            position: fixed;
            left: 0;
            top: 0;
            background: var(--nav-bg);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 30px 22px 26px;
            z-index: 1050;
            overflow-y: auto;
        }

        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 34px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            letter-spacing: .4px;
        }

        .brand-logo:hover {
            color: #fff;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: linear-gradient(135deg, var(--primary), #6d9bff);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 17px;
            line-height: 1.2;
        }

        .brand-name em {
            font-style: normal;
            color: var(--accent);
            display: block;
            font-size: 15px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            padding: 6px 8px;
            cursor: pointer;
        }

        .main-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: 13px;
            color: rgba(255, 255, 255, .72);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
        }

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

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(30, 94, 255, .35);
        }

        .nav-extra {
            margin-top: auto;
        }

        .support-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 14px;
            padding: 14px 14px;
            display: flex;
            gap: 12px;
            align-items: center;
            margin-bottom: 16px;
        }

        .support-card i {
            font-size: 20px;
            color: var(--accent);
        }

        .support-card strong {
            display: block;
            color: #fff;
            font-size: 14px;
            line-height: 1.2;
        }

        .support-card span {
            color: rgba(255, 255, 255, .6);
            font-size: 12px;
        }

        .btn-brand {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), #ffb84d);
            color: #1e293b;
            font-weight: 700;
            font-size: 14px;
            padding: 12px 16px;
            border-radius: 13px;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            width: 100%;
        }

        .btn-brand:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(245, 166, 35, .3);
            color: #1e293b;
        }

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

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 72px 0 58px;
            background-size: cover;
            background-position: center;
            background-color: var(--nav-bg);
            color: #fff;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(13, 24, 48, .94), rgba(13, 24, 48, .72));
        }

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

        .breadcrumb-nav {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .82);
            text-decoration: none;
        }

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

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, .45);
        }

        .breadcrumb-current {
            color: rgba(255, 255, 255, .75);
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            margin: 0 0 18px;
            max-width: 840px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .badge-cat {
            background: var(--accent);
            color: #1e293b;
            border-radius: 100px;
            padding: 5px 16px;
            font-size: 13px;
            font-weight: 700;
            display: inline-block;
        }

        .article-date {
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 正文区 ===== */
        .article-section {
            padding: 48px 0 56px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 42px;
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
            word-wrap: break-word;
        }

        .article-content p {
            margin-bottom: 1.2em;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 1.6em 0 .7em;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 1.4em 0 .6em;
        }

        .article-content h4 {
            font-size: 17px;
            font-weight: 700;
            margin: 1.2em 0 .5em;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 1.4em;
            margin-bottom: 1.2em;
        }

        .article-content li {
            margin-bottom: .45em;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--primary-light);
            padding: 16px 22px;
            border-radius: 0 14px 14px 0;
            margin: 1.4em 0;
            color: var(--text-main);
        }

        .article-content img {
            max-width: 100%;
            border-radius: 14px;
            height: auto;
            margin: 1.2em 0;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content table {
            width: 100%;
            margin: 1.4em 0;
            border-collapse: collapse;
            font-size: 14px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content table th {
            background: var(--primary-light);
            font-weight: 600;
        }

        .article-tags {
            margin-top: 36px;
            padding-top: 22px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag {
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: 100px;
            padding: 6px 15px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .not-found {
            text-align: center;
            padding: 60px 24px;
        }

        .not-found i {
            font-size: 52px;
            color: var(--border);
            margin-bottom: 20px;
        }

        .not-found h2 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 12px;
        }

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

        .not-found .btn-brand {
            max-width: 200px;
            margin: 0 auto;
        }

        /* ===== 侧栏 ===== */
        .sidebar-sticky {
            position: sticky;
            top: 24px;
        }

        .side-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 22px;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .side-card h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 14px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card h4 i {
            color: var(--primary);
        }

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

        .info-list li {
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            padding: 9px 0;
            border-bottom: 1px dashed var(--border);
            line-height: 1.5;
        }

        .info-list li:last-child {
            border-bottom: 0;
        }

        .info-list li i {
            color: var(--primary);
            width: 16px;
            margin-top: 3px;
        }

        .side-cat-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 11px;
            color: var(--text-main);
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            background: var(--bg-body);
            margin-bottom: 10px;
            transition: var(--transition);
        }

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

        .side-cat-link i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }

        .side-card-accent {
            background: linear-gradient(135deg, #0d1830, #1b2b55);
            color: #fff;
            text-align: center;
        }

        .side-card-accent i {
            font-size: 26px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .side-card-accent p {
            font-size: 13px;
            margin: 0;
            color: rgba(255, 255, 255, .8);
            line-height: 1.7;
        }

        /* ===== 分类卡片区 ===== */
        .section-cats {
            padding: 56px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            text-align: center;
            max-width: 620px;
            margin: 0 auto 40px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            border-radius: 100px;
            padding: 5px 16px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
        }

        .cat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border);
            display: block;
            text-decoration: none;
            color: var(--text-main);
        }

        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            color: var(--text-main);
        }

        .cat-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .cat-card-body {
            padding: 26px 24px;
        }

        .cat-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        .cat-card-more {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        /* ===== CTA ===== */
        .cta-band {
            padding: 56px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, #0d1830, #1b2b55);
            border-radius: 24px;
            padding: 52px 44px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(30, 94, 255, .42), transparent 70%);
            top: -110px;
            right: -70px;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(245, 166, 35, .28), transparent 70%);
            bottom: -90px;
            left: -50px;
        }

        .cta-box>* {
            position: relative;
            z-index: 2;
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            margin-bottom: 30px;
        }

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

        .btn-cta-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: #0d1830;
            font-weight: 700;
            font-size: 14px;
            padding: 12px 26px;
            border-radius: 100px;
            text-decoration: none;
            transition: var(--transition);
            border: none;
        }

        .btn-cta-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, .2);
            color: #0d1830;
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 12px 26px;
            border-radius: 100px;
            text-decoration: none;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, .5);
        }

        .btn-cta-outline:hover {
            border-color: #fff;
            transform: translateY(-3px);
            color: #fff;
        }

        /* ===== FAQ ===== */
        .section-faq {
            padding: 56px 0 72px;
        }

        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: 14px !important;
            overflow: hidden;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-weight: 700;
            color: var(--text-main);
            background: #fff;
            padding: 18px 22px;
            font-size: 15px;
            border: none;
        }

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

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(30, 94, 255, .18);
        }

        .accordion-button::after {
            background-size: 14px;
        }

        .accordion-body {
            color: var(--text-muted);
            line-height: 1.75;
            font-size: 14px;
            padding: 16px 22px 20px;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0d1830;
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 26px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 320px;
            color: rgba(255, 255, 255, .55);
        }

        .footer-safe {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .07);
            border-radius: 100px;
            padding: 7px 16px;
            font-size: 12px;
            color: rgba(255, 255, 255, .7);
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .55);
            text-decoration: none;
            font-size: 13px;
            margin-bottom: 10px;
            transition: var(--transition);
        }

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

        .footer-contact {
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 22px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .site-header {
                width: 250px;
                padding: 26px 18px 22px;
            }

            .content-wrap {
                margin-left: 250px;
            }

            .article-title {
                font-size: 29px;
            }
        }

        @media (max-width: 991px) {
            .site-header {
                width: 100%;
                height: auto;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                padding: 14px 20px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                box-shadow: 0 6px 20px rgba(0, 0, 0, .18);
                overflow: visible;
            }

            .header-top {
                margin-bottom: 0;
                flex: 1;
                justify-content: space-between;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav,
            .nav-extra {
                width: 100%;
                display: none;
            }

            .site-header.open .main-nav,
            .site-header.open .nav-extra {
                display: flex;
            }

            .main-nav {
                padding-top: 14px;
            }

            .nav-extra {
                margin-top: 14px;
            }

            .content-wrap {
                margin-left: 0;
                padding-top: 70px;
            }

            .article-hero {
                padding: 48px 0 40px;
            }

            .article-section {
                padding: 34px 0 40px;
            }

            .article-card {
                padding: 28px 24px;
            }

            .sidebar-sticky {
                position: static;
                margin-top: 12px;
            }

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

        @media (max-width: 767px) {
            .article-title {
                font-size: 24px;
            }

            .article-hero {
                padding: 38px 0 30px;
            }

            .breadcrumb-current {
                max-width: 160px;
            }

            .article-card {
                padding: 22px 18px;
                border-radius: 16px;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.8;
            }

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

            .section-head h2 {
                font-size: 23px;
            }

            .cta-box {
                padding: 38px 22px;
                border-radius: 18px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                padding: 12px 16px;
            }

            .brand-name {
                font-size: 15px;
            }

            .brand-mark {
                width: 36px;
                height: 36px;
                border-radius: 11px;
                font-size: 15px;
            }

            .content-wrap {
                padding-top: 64px;
            }

            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-meta {
                gap: 10px;
            }

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

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

            .cta-band {
                padding: 40px 0;
            }

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

            .btn-cta-light,
            .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }

            .article-tags {
                gap: 8px;
            }

            .footer-bottom {
                font-size: 12px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-rgb: 230, 57, 70;
            --primary-dark: #c1121f;
            --accent: #f4a261;
            --secondary: #1d3557;
            --dark-bg: #0f1923;
            --dark-bg-2: #1a2634;
            --bg-light: #f6f8fc;
            --card-bg: #ffffff;
            --text-dark: #1e293b;
            --text-body: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(15, 25, 35, .06);
            --shadow-md: 0 10px 32px rgba(15, 25, 35, .1);
            --shadow-lg: 0 20px 50px rgba(15, 25, 35, .16);
            --sidebar-width: 280px;
            --transition: .3s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding-left: var(--sidebar-width);
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            font-size: 15px;
        }

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

        a {
            transition: color var(--transition);
        }

        button,
        input {
            font-family: inherit;
        }

        .site-container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Header / Sidebar ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--dark-bg);
            padding: 28px 24px 24px;
            display: flex;
            flex-direction: column;
            z-index: 1040;
            border-right: 1px solid rgba(255, 255, 255, .06);
            overflow-y: auto;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #ff8c42);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(230, 57, 70, .35);
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .5px;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-name em {
            font-style: normal;
            color: var(--accent);
            display: block;
            font-size: 13px;
            letter-spacing: 1px;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, .1);
        }

        .main-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 32px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 16px;
            border-radius: 12px;
            color: rgba(255, 255, 255, .75);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            border-left: 3px solid transparent;
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }

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

        .nav-link.active {
            background: rgba(230, 57, 70, .18);
            color: #ff6b6b;
            border-left-color: var(--primary);
        }

        .nav-extra {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .support-card {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 14px;
            padding: 14px 16px;
            margin-bottom: 16px;
        }

        .support-card i {
            font-size: 22px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .support-card strong {
            display: block;
            color: #fff;
            font-size: 14px;
            line-height: 1.3;
        }

        .support-card span {
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
        }

        .nav-extra .btn-brand {
            width: 100%;
            justify-content: center;
        }

        /* ===== Buttons ===== */
        .btn-brand,
        .btn-outline,
        .btn-brand-invert {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.4;
        }

        .btn-brand {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(230, 57, 70, .35);
        }

        .btn-brand:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(230, 57, 70, .45);
        }

        .btn-brand:focus-visible,
        .btn-outline:focus-visible,
        .btn-brand-invert:focus-visible {
            outline: 3px solid rgba(230, 57, 70, .4);
            outline-offset: 2px;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .6);
        }

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

        .btn-brand-invert {
            background: linear-gradient(135deg, var(--primary), #ff8c42);
            color: #fff;
            box-shadow: 0 10px 32px rgba(230, 57, 70, .4);
        }

        .btn-brand-invert:hover {
            color: #fff;
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 16px 40px rgba(230, 57, 70, .5);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 110px 0 100px;
            color: #fff;
            isolation: isolate;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(10, 16, 28, .9) 25%, rgba(10, 16, 28, .6) 60%, rgba(10, 16, 28, .38));
            z-index: -1;
        }

        .hero-content {
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 7px 18px;
            border-radius: 40px;
            font-size: 13px;
            letter-spacing: .4px;
            backdrop-filter: blur(8px);
            margin-bottom: 24px;
            color: #fff;
        }

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

        .hero-content h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 18px;
            color: #fff;
            letter-spacing: 1px;
        }

        .hero-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 34px;
            max-width: 640px;
            line-height: 1.8;
        }

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

        .hero-metrics {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            flex-wrap: wrap;
        }

        .hero-metric {
            border-left: 2px solid rgba(255, 255, 255, .25);
            padding-left: 16px;
        }

        .hero-metric strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-metric span {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }

        /* ===== Sections ===== */
        .section-block {
            padding: 90px 0;
        }

        .section-block + .section-block {
            border-top: 1px solid var(--border);
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 680px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, .1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 16px;
            letter-spacing: .3px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: .5px;
            line-height: 1.3;
        }

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

        /* ===== Info Cards ===== */
        .info-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .info-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }

        .info-card:hover::after {
            opacity: 1;
        }

        .info-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: rgba(230, 57, 70, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
        }

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

        .info-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* ===== News Cards ===== */
        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .news-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #eef1f5;
        }

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

        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 25, 35, .75);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
            letter-spacing: .3px;
        }

        .news-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
            transition: color var(--transition);
        }

        .news-body h3 a {
            text-decoration: none;
            color: inherit;
        }

        .news-card:hover .news-body h3 {
            color: var(--primary);
        }

        .news-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.7;
        }

        .news-meta {
            display: flex;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .news-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-meta i {
            color: var(--primary);
            font-size: 13px;
        }

        /* ===== Tags ===== */
        .tags-section {
            background: #fff;
            padding: 80px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .tags-list {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 11px 24px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            text-decoration: none;
            transition: all var(--transition);
        }

        .tag-item i {
            color: var(--primary);
            font-size: 14px;
        }

        .tag-item:hover {
            background: rgba(230, 57, 70, .08);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .tag-item .tag-count {
            background: rgba(15, 25, 35, .08);
            padding: 2px 8px;
            border-radius: 20px;
            font-size: 12px;
            margin-left: 2px;
        }

        .tag-item:hover .tag-count {
            background: rgba(230, 57, 70, .15);
        }

        /* ===== Stats ===== */
        .stats-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0;
            color: #fff;
            isolation: isolate;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 16, 28, .82);
            z-index: -1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            padding: 24px 16px;
        }

        .stat-item .stat-num {
            font-size: 46px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 8px;
        }

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

        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
        }

        /* ===== Guide ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }

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

        .guide-num {
            font-size: 44px;
            font-weight: 800;
            color: rgba(230, 57, 70, .15);
            line-height: 1;
            margin-bottom: 20px;
        }

        .guide-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .guide-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 90px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }

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

        .faq-item {
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item.active {
            border-color: rgba(230, 57, 70, .35);
            box-shadow: var(--shadow-sm);
        }

        .faq-header {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-dark);
            font-size: 16px;
            user-select: none;
            gap: 16px;
        }

        .faq-header i {
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
            font-size: 16px;
        }

        .faq-item.active .faq-header i {
            transform: rotate(45deg);
        }

        .faq-body {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            display: none;
            line-height: 1.8;
        }

        .faq-item.active .faq-body {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, #1d3557, #0f1923 60%, #2d1b4e);
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230, 57, 70, .2), transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .7);
            margin-bottom: 36px;
            font-size: 16px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, .65);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 14px;
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            text-decoration: none;
            line-height: 1.3;
        }

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

        .footer-safe {
            display: inline-block;
            margin-top: 14px;
            font-size: 13px;
            background: rgba(255, 255, 255, .08);
            padding: 6px 16px;
            border-radius: 30px;
            color: rgba(255, 255, 255, .75);
        }

        .footer-safe i {
            color: var(--accent);
            margin-right: 4px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: .3px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .55);
            text-decoration: none;
            font-size: 14px;
            margin-bottom: 12px;
            transition: color var(--transition), padding-left var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

        .footer-contact {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Bootstrap Overrides ===== */
        .row {
            margin-right: -12px;
            margin-left: -12px;
        }

        .row > * {
            padding-right: 12px;
            padding-left: 12px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1200px) {
            .site-container {
                padding: 0 24px;
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 240px;
            }

            .site-header {
                padding: 24px 20px;
            }

            .brand-name {
                font-size: 18px;
            }

            .brand-mark {
                width: 38px;
                height: 38px;
                font-size: 16px;
            }

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

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

            .guide-grid {
                grid-template-columns: repeat(3, 1fr);
            }

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

        @media (max-width: 768px) {
            body {
                padding-left: 0;
                padding-top: 72px;
            }

            .site-header {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                width: 100%;
                height: auto;
                padding: 14px 20px;
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                overflow-y: visible;
            }

            .header-top {
                margin-bottom: 0;
                flex: 1;
            }

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

            .main-nav {
                display: none;
                width: 100%;
                margin-top: 16px;
                margin-bottom: 16px;
                flex-direction: column;
            }

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

            .nav-extra {
                display: none;
                width: 100%;
            }

            .nav-extra.open {
                display: block;
            }

            .page-hero {
                padding: 80px 0 70px;
            }

            .hero-content h1 {
                font-size: 33px;
            }

            .hero-content p {
                font-size: 16px;
            }

            .hero-metrics {
                gap: 24px;
                margin-top: 40px;
            }

            .section-block {
                padding: 64px 0;
            }

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

            .section-head p {
                font-size: 15px;
            }

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .stat-item .stat-num {
                font-size: 38px;
            }

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

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

            .footer-bottom {
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            body {
                padding-top: 68px;
            }

            .site-container {
                padding: 0 18px;
            }

            .brand-name {
                font-size: 17px;
            }

            .brand-mark {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

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

            .hero-content h1 {
                font-size: 27px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .btn-brand,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .hero-metric {
                padding-left: 12px;
            }

            .hero-metric strong {
                font-size: 22px;
            }

            .hero-metric span {
                font-size: 12px;
            }

            .section-block {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 24px;
            }

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

            .stat-item {
                padding: 16px;
            }

            .tags-list {
                gap: 10px;
            }

            .tag-item {
                padding: 9px 18px;
                font-size: 13px;
            }

            .cta-section {
                padding: 60px 0;
            }

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

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn-brand-invert {
                width: 100%;
                justify-content: center;
            }

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

            .faq-header {
                font-size: 15px;
                padding: 18px 18px;
            }

            .faq-body {
                padding: 0 18px 18px;
            }
        }