/* roulang page: index */
:root {
  --primary: #0E3A30;
  --primary-soft: #1A5345;
  --primary-mist: #F0F5F1;
  --accent: #C49A5A;
  --accent-soft: #D9B87E;
  --bg: #F6F4EF;
  --bg-deep: #0B2D25;
  --card: #FFFFFF;
  --text: #1F2421;
  --text-weak: #6B716B;
  --border: #E4DFD6;
  --radius: 16px;
  --radius-lg: 20px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(27,45,38,.08);
  --shadow-hover: 0 12px 28px rgba(27,45,38,.12);
  --transition: .2s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; }
button, input { font-family: inherit; }
.container { max-width: 1200px; }

h1, h2, h3, h4, h5, h6 { color: var(--text); }
h1 { font-size: 38px; font-weight: 700; line-height: 1.2; }
h2 { font-size: 28px; font-weight: 700; line-height: 1.3; }
h3 { font-size: 20px; font-weight: 600; line-height: 1.4; }

.btn { border-radius: var(--radius-sm); font-weight: 600; padding: 10px 22px; border: 2px solid transparent; transition: all var(--transition); }
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary-custom:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary);
}
.btn-outline-custom {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-custom:hover {
  background: var(--primary);
  color: #fff;
}
.btn-accent-custom {
  background: var(--accent);
  color: var(--primary);
  border-color: var(--accent);
}
.btn-accent-custom:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.section { padding: 80px 0; }
.section-header { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section-header .tagline {
  display: inline-block;
  background: var(--primary-mist);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: var(--text-weak); }

/* Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(246,244,239,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(228,223,214,.7);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(14,58,48,.08); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.site-logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.logo-mark svg { width: 20px; height: 20px; }
.logo-text { font-size: 18px; font-weight: 700; color: var(--primary); letter-spacing: .5px; }
.nav-menu { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-menu .nav-item { position: relative; }
.nav-menu .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 0;
  position: relative;
}
.nav-menu .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width .3s ease;
}
.nav-menu .nav-link:hover::after,
.nav-menu .nav-link.active::after { width: 100%; }
.nav-menu .nav-link.active { color: var(--primary); font-weight: 600; }
.nav-cta { margin-left: 16px; }
.nav-cta .btn { padding: 8px 20px; font-size: 14px; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--primary); border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero-section { padding: 80px 0 60px; background: var(--bg); overflow: hidden; }
.hero-content h1 { color: var(--primary); margin-bottom: 20px; }
.hero-content h1 .highlight {
  position: relative;
  color: var(--primary);
  padding: 2px 8px;
  background: linear-gradient(transparent 70%, rgba(196,154,90,.35) 70%);
  border-radius: 4px;
}
.hero-content .hero-sub { font-size: 17px; color: var(--text-weak); margin-bottom: 32px; max-width: 480px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-buttons .btn { min-width: 140px; padding: 12px 28px; font-size: 16px; }
.hero-trust { display: flex; gap: 40px; flex-wrap: wrap; }
.trust-item { display: flex; flex-direction: column; }
.trust-item .num { font-size: 24px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.trust-item .label { font-size: 13px; color: var(--text-weak); }
.hero-visual { position: relative; height: 420px; border-radius: var(--radius-lg); overflow: hidden; }
.hero-visual .hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-visual .hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(14,58,48,.25) 0%, rgba(11,45,37,.55) 100%);
  z-index: 1;
}
.login-quick-card {
  position: absolute;
  right: 28px;
  bottom: 28px;
  z-index: 2;
  width: 260px;
  background: rgba(255,255,255,.96);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-hover);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.6);
}
.login-quick-card .login-quick-title { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.login-quick-card .login-quick-title i { color: var(--accent); }
.login-quick-card .form-control {
  font-size: 14px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #faf9f6;
  margin-bottom: 12px;
}
.login-quick-card .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,58,48,.08);
  background: #fff;
}
.login-quick-card .btn { width: 100%; padding: 9px; font-size: 14px; }
.login-quick-card .quick-links { display: flex; justify-content: space-between; margin-top: 12px; font-size: 12px; color: var(--text-weak); }
.login-quick-card .quick-links a:hover { color: var(--primary); }

/* Feature */
.feature-section { background: var(--bg); }
.feature-grid { display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr); grid-auto-rows: minmax(180px, auto); }
.feature-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid transparent;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-left-color: var(--accent);
}
.feature-card .feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary-mist);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 18px; margin-bottom: 8px; font-weight: 600; }
.feature-card p { font-size: 14px; color: var(--text-weak); margin-bottom: 0; line-height: 1.7; }
.feature-card .feature-link { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--primary); font-weight: 600; }
.feature-card .feature-link i { transition: transform var(--transition); font-size: 12px; }
.feature-card:hover .feature-link i { transform: translateX(4px); }
.feature-card--large {
  grid-column: span 2;
  grid-row: span 2;
  background: linear-gradient(140deg, var(--primary) 0%, var(--primary-soft) 100%);
  color: #fff;
  border-left: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.feature-card--large .feature-icon { background: rgba(255,255,255,.15); color: var(--accent-soft); }
.feature-card--large h3 { color: #fff; font-size: 22px; }
.feature-card--large p { color: rgba(255,255,255,.8); }
.feature-card--large .feature-link { color: var(--accent-soft); }
.feature-card--large:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card--wide { grid-column: span 2; }

/* Scenario */
.scenario-section { background: var(--card); }
.scenario-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.scenario-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.scenario-card .scenario-img { height: 180px; background-size: cover; background-position: center; }
.scenario-card .scenario-body { padding: 24px; flex: 1; }
.scenario-card .scenario-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-mist);
  padding: 3px 10px;
  border-radius: 14px;
  margin-bottom: 10px;
}
.scenario-card h3 { font-size: 18px; margin-bottom: 8px; }
.scenario-card p { font-size: 14px; color: var(--text-weak); margin-bottom: 12px; line-height: 1.7; }
.scenario-card .scenario-link { font-size: 14px; font-weight: 600; color: var(--primary); }
.scenario-card .scenario-link i { font-size: 12px; transition: transform var(--transition); }
.scenario-card:hover .scenario-link i { transform: translateX(4px); }
.scenario-card--large .scenario-img { height: 240px; }

/* Case */
.case-section { background: var(--bg); }
.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
}
.case-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.case-card .case-img { height: 200px; background-size: cover; background-position: center; position: relative; }
.case-card .case-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255,255,255,.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 16px;
}
.case-card .case-body { padding: 24px; }
.case-card .case-num { font-size: 26px; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.case-card .case-num small { font-size: 14px; font-weight: 400; color: var(--text-weak); }
.case-card p { font-size: 14px; color: var(--text-weak); margin-bottom: 0; }

/* Pricing */
.pricing-section { background: var(--card); }
.price-card {
  border-radius: var(--radius-lg);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.price-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.price-card--featured {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 16px 40px rgba(14,58,48,.25);
  transform: translateY(-20px);
  z-index: 1;
}
.price-card--featured:hover { transform: translateY(-24px); box-shadow: 0 20px 48px rgba(14,58,48,.3); }
.price-card--featured .price-tag { color: var(--accent-soft); }
.price-card--featured .price-amount { color: #fff; }
.price-card--featured .price-desc { color: rgba(255,255,255,.7); }
.price-card--featured .price-features li { color: rgba(255,255,255,.85); }
.price-card--featured .price-features li i { color: var(--accent-soft); }
.price-card--featured .price-btn { background: var(--accent); border-color: var(--accent); color: var(--primary); }
.price-card--featured .price-btn:hover { background: #fff; border-color: #fff; color: var(--primary); }
.price-card--featured::before {
  content: '推荐';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 3px 20px;
  border-radius: 20px;
}
.price-card .price-name { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.price-card .price-amount { font-size: 36px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.price-card .price-amount span { font-size: 14px; font-weight: 400; color: var(--text-weak); }
.price-card .price-desc { font-size: 14px; color: var(--text-weak); margin-bottom: 24px; }
.price-card .price-features { list-style: none; padding: 0; margin: 0 0 28px; text-align: left; }
.price-card .price-features li { padding: 6px 0; font-size: 14px; color: var(--text); }
.price-card .price-features li i { color: var(--accent); margin-right: 10px; width: 16px; }
.price-card .price-btn { width: 100%; }

/* News */
.news-section { background: var(--bg); }
.news-card {
  display: flex;
  align-items: stretch;
  background: var(--card);
  border-radius: var(--radius);
  padding: 0;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  overflow: hidden;
  border: 1px solid var(--border);
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateX(6px); border-color: var(--accent); }
.news-time {
  width: 86px;
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px 0;
}
.news-time .day { font-size: 26px; font-weight: 700; line-height: 1; }
.news-time .month { font-size: 13px; opacity: .8; margin-top: 4px; }
.news-body { padding: 20px 24px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-body .news-title { font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.news-body .news-excerpt { font-size: 14px; color: var(--text-weak); margin-bottom: 10px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body .news-meta { display: flex; align-items: center; gap: 12px; }
.news-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-mist);
  padding: 2px 12px;
  border-radius: 14px;
}
.news-date { font-size: 13px; color: var(--text-weak); }
.news-empty {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-weak);
}
.news-empty i { font-size: 36px; margin-bottom: 12px; color: var(--border); display: block; }
.news-empty p { margin: 0; }

/* FAQ */
.faq-section { background: var(--card); }
.faq-accordion .accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-sm);
}
.faq-accordion .accordion-item:has(.show) { border-left-color: var(--accent); border-left-width: 4px; }
.faq-accordion .accordion-header { margin: 0; }
.faq-accordion .accordion-button {
  background: var(--card);
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: none;
  border: none;
  position: relative;
  width: 100%;
  text-align: left;
  cursor: pointer;
}
.faq-accordion .accordion-button::after { display: none; }
.faq-accordion .accordion-button .faq-num {
  background: var(--primary-mist);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.faq-accordion .accordion-button .faq-arrow { margin-left: auto; transition: transform .3s; color: var(--text-weak); }
.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--primary-mist);
  color: var(--primary);
  font-weight: 600;
}
.faq-accordion .accordion-button:not(.collapsed) .faq-num { background: var(--primary); color: #fff; }
.faq-accordion .accordion-button:not(.collapsed) .faq-arrow { transform: rotate(180deg); color: var(--primary); }
.faq-accordion .accordion-body { padding: 20px 24px 24px 72px; color: var(--text-weak); font-size: 15px; line-height: 1.8; border-top: 1px solid var(--border); }

/* Login section */
.login-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--bg-deep) 100%);
  position: relative;
}
.login-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: .08;
}
.login-section .container { position: relative; z-index: 1; }
.login-section .section-header .tagline { background: rgba(255,255,255,.12); color: var(--accent-soft); }
.login-section .section-header h2 { color: #fff; }
.login-section .section-header p { color: rgba(255,255,255,.7); }
.login-card {
  background: rgba(255,255,255,.97);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 480px;
  margin: 0 auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.login-card .login-title { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 24px; text-align: center; }
.login-card .form-label { font-size: 14px; font-weight: 500; color: var(--text); }
.login-card .form-control {
  font-size: 15px;
  padding: 12px 16px;
  border: 1px solid #D8D2C5;
  border-radius: 8px;
  background: #faf9f6;
  margin-bottom: 18px;
}
.login-card .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(14,58,48,.08);
  background: #fff;
}
.login-card .btn-login {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  font-weight: 700;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
}
.login-card .btn-login:hover { background: var(--accent); color: var(--primary); }
.login-links { display: flex; justify-content: center; gap: 24px; margin-top: 18px; font-size: 14px; }
.login-links a { color: var(--text-weak); }
.login-links a:hover { color: var(--primary); }

/* Footer */
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,.7); padding: 60px 0 24px; }
.site-footer .footer-brand .logo-text { color: #fff; font-size: 18px; margin-bottom: 12px; display: inline-block; }
.site-footer p { font-size: 14px; line-height: 1.8; }
.site-footer h5 { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 600; }
.site-footer .footer-links { list-style: none; padding: 0; margin: 0; }
.site-footer .footer-links li { margin-bottom: 10px; }
.site-footer .footer-links a { font-size: 14px; color: rgba(255,255,255,.7); }
.site-footer .footer-links a:hover { color: var(--accent-soft); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 40px;
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.footer-brand { margin-bottom: 24px; }

/* Responsive */
@media (max-width: 991.98px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(246,244,239,.98);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform .35s ease;
    z-index: 999;
    box-shadow: 0 20px 40px rgba(14,58,48,.1);
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu .nav-item { border-bottom: 1px solid var(--border); }
  .nav-menu .nav-item:last-child { border-bottom: none; }
  .nav-menu .nav-link { display: block; padding: 12px 0; font-size: 16px; }
  .nav-menu .nav-link::after { display: none; }
  .nav-cta { margin: 16px 0 0; }
  .nav-cta .btn { width: 100%; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card--large { grid-column: span 2; grid-row: span 1; }
  .feature-card--wide { grid-column: span 2; }
  .hero-section { padding: 60px 0 48px; }
}

@media (max-width: 767.98px) {
  .section { padding: 48px 0; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .hero-visual { height: 340px; margin-top: 32px; }
  .login-quick-card { right: 16px; bottom: 16px; width: 240px; padding: 20px; }
  .price-card--featured { transform: translateY(0); }
  .price-card--featured:hover { transform: translateY(-4px); }
  .faq-accordion .accordion-body { padding: 16px 20px 20px; }
  .news-time { width: 70px; }
  .news-time .day { font-size: 22px; }
}

@media (max-width: 575.98px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card--large { grid-column: span 1; grid-row: span 1; }
  .feature-card--wide { grid-column: span 1; }
  .hero-buttons .btn { width: 100%; }
  .hero-trust { gap: 24px; }
  .login-card { padding: 24px; }
  .site-header .container { height: 64px; }
  .nav-menu { top: 64px; }
}

/* roulang page: article */
:root {
  --c-primary: #0E3A30;
  --c-primary-light: #1A5043;
  --c-primary-dark: #0A2D25;
  --c-accent: #C49A5A;
  --c-accent-light: #D8B578;
  --c-bg: #F6F4EF;
  --c-card: #FFFFFF;
  --c-text: #1F2421;
  --c-text-weak: #6B716B;
  --c-border: #E4DFD6;
  --c-green-soft: #F0F5F1;
  --radius: 16px;
  --radius-lg: 20px;
  --radius-sm: 10px;
  --shadow: 0 1px 3px rgba(27,45,38,.08);
  --shadow-hover: 0 12px 28px rgba(27,45,38,.12);
  --spacer: 80px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-stack);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.3; }
p { margin: 0; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; }
button, input { font-family: inherit; }
.container { max-width: 1200px; }

/* ===== Buttons ===== */
.btn { border-radius: var(--radius-sm); font-weight: 600; transition: all .2s ease; }
.btn-primary-custom {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--c-primary);
  --bs-btn-border-color: var(--c-primary);
  background: var(--c-primary);
  border: 1px solid var(--c-primary);
  color: #fff;
  padding: 10px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: all .2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
}
.btn-primary-custom:hover, .btn-primary-custom:focus {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-primary);
  box-shadow: 0 6px 18px rgba(196,154,90,.35);
}
.btn-outline-custom {
  background: transparent;
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  padding: 10px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all .2s ease;
}
.btn-outline-custom:hover, .btn-outline-custom:focus {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}
.btn-primary-custom:focus-visible,
.btn-outline-custom:focus-visible,
.nav-toggle:focus-visible,
.nav-link:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(246, 244, 239, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow .25s ease;
}
.site-header.scrolled { box-shadow: var(--shadow); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
}
.logo-mark svg { width: 34px; height: 34px; }
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: .5px;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transition: all .25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-item { margin-bottom: 0; }
.nav-item .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  position: relative;
  padding: 8px 0;
  display: block;
  background: none;
  border: 0;
  white-space: nowrap;
}
.nav-item .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  transition: width .25s ease;
}
.nav-item .nav-link:hover { color: var(--c-primary); }
.nav-item .nav-link:hover::after { width: 100%; }
.nav-item .nav-link.active {
  font-weight: 700;
  color: var(--c-primary);
}
.nav-item .nav-link.active::after { width: 100%; }
.nav-cta { list-style: none; }
.nav-cta .btn-primary-custom { padding: 8px 20px; font-size: 14px; min-height: 40px; }

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  background: linear-gradient(rgba(14,58,48,.92), rgba(10,45,37,.94)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 56px 0 96px;
  color: #fff;
}
.breadcrumb-custom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.7);
  margin-bottom: 24px;
}
.breadcrumb-custom a { color: rgba(255,255,255,.8); transition: color .2s ease; }
.breadcrumb-custom a:hover { color: var(--c-accent); }
.breadcrumb-custom .crumb-sep { color: rgba(255,255,255,.4); }
.breadcrumb-custom .crumb-current {
  color: var(--c-accent);
  font-weight: 600;
  max-width: 420px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article-hero h1 {
  color: #fff;
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.3;
  max-width: 880px;
  margin-bottom: 20px;
}
.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: rgba(255,255,255,.82);
}
.article-meta-row .meta-cat {
  background: var(--c-accent);
  color: var(--c-primary);
  font-weight: 700;
  font-size: 12px;
  padding: 4px 14px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  letter-spacing: .5px;
}
.article-meta-row .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--c-accent);
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
}

/* ===== Article Main ===== */
.article-main {
  max-width: 820px;
  margin: -52px auto 0;
  padding: 0 20px 72px;
  position: relative;
  z-index: 3;
}
.article-body {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow);
}
.article-body p {
  margin-bottom: 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
}
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--c-primary);
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-green-soft);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--c-primary);
  margin: 32px 0 12px;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-primary);
  margin: 24px 0 10px;
}
.article-body ul, .article-body ol { margin-bottom: 24px; padding-left: 22px; }
.article-body li { margin-bottom: 8px; line-height: 1.7; }
.article-body ul li::marker { color: var(--c-accent); }
.article-body ol li::marker { color: var(--c-accent); font-weight: 700; }
.article-body blockquote {
  border-left: 4px solid var(--c-accent);
  background: var(--c-green-soft);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 8px 8px 0;
  color: var(--c-text-weak);
}
.article-body a { color: var(--c-primary); text-decoration: underline; text-underline-offset: 4px; }
.article-body a:hover { color: var(--c-accent); }
.article-body img {
  border-radius: 12px;
  margin: 16px 0;
  box-shadow: var(--shadow);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}
.article-body th, .article-body td {
  border: 1px solid var(--c-border);
  padding: 10px 14px;
  text-align: left;
}
.article-body th { background: var(--c-green-soft); color: var(--c-primary); font-weight: 600; }
.article-body code {
  background: var(--c-green-soft);
  color: var(--c-primary);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 14px;
}
.article-body hr {
  border: 0;
  border-top: 1px solid var(--c-border);
  margin: 32px 0;
}

/* ===== Empty State ===== */
.article-empty {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  background: var(--c-card);
  border: 2px dashed var(--c-border);
  border-radius: var(--radius-lg);
  padding: 64px 24px;
  box-shadow: var(--shadow);
}
.article-empty .empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  font-size: 28px;
  color: var(--c-accent);
  background: var(--c-green-soft);
  border-radius: 50%;
  margin-bottom: 16px;
}
.article-empty p {
  font-size: 16px;
  color: var(--c-text-weak);
  margin-bottom: 20px;
}

/* ===== Related Cards ===== */
.related-zone {
  background: var(--c-bg);
  padding: 64px 0 80px;
  border-top: 1px solid var(--c-border);
}
.related-zone .section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--c-primary);
  margin-bottom: 10px;
  text-align: center;
}
.related-zone .section-sub {
  font-size: 15px;
  color: var(--c-text-weak);
  text-align: center;
  margin-bottom: 40px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-top: 3px solid var(--c-primary);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  transition: box-shadow .25s ease, transform .25s ease, border-top-color .25s ease;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-top-color: var(--c-accent);
}
.related-card .rl-img {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}
.related-card .rl-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}
.related-card:hover .rl-img img { transform: scale(1.04); }
.related-card .rl-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.related-card .rl-tag {
  font-size: 12px;
  color: var(--c-accent);
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.related-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  margin: 4px 0 10px;
  line-height: 1.45;
  flex: 1;
}
.related-card h3 a:hover { color: var(--c-primary); }
.related-card p { font-size: 14px; color: var(--c-text-weak); margin-bottom: 14px; line-height: 1.7; }
.related-card .rl-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  transition: color .2s ease, gap .2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.related-card .rl-more:hover { color: var(--c-accent); gap: 8px; }

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 44px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-primary);
  color: rgba(255,255,255,.8);
  padding: 64px 0 0;
  border-top: 4px solid var(--c-accent);
}
.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.site-footer .footer-brand .logo-mark svg {
  width: 30px;
  height: 30px;
}
.site-footer .footer-brand .logo-text {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .5px;
}
.site-footer p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,.65);
  margin-bottom: 20px;
  max-width: 420px;
}
.site-footer h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.site-footer .footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer .footer-links li { margin-bottom: 10px; }
.site-footer .footer-links a {
  color: rgba(255,255,255,.65);
  font-size: 14px;
  transition: all .2s ease;
  display: inline-block;
}
.site-footer .footer-links a:hover {
  color: var(--c-accent);
  padding-left: 4px;
}
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 48px;
  padding: 20px 0;
}
.site-footer .footer-bottom p {
  font-size: 13px;
  margin: 0;
  color: rgba(255,255,255,.55);
  text-align: center;
}

/* ===== FAQ / CTA (design system) ===== */
.faq-panel .accordion-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius) !important;
  background: var(--c-card);
  margin-bottom: 14px;
  overflow: hidden;
}
.faq-panel .accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  background: var(--c-card);
  box-shadow: none;
  padding: 18px 22px;
}
.faq-panel .accordion-button:not(.collapsed) {
  background: var(--c-green-soft);
  color: var(--c-primary);
  border-left: 4px solid var(--c-primary);
}
.faq-panel .accordion-button::after {
  background-size: 16px;
  filter: brightness(0.4) sepia(1) hue-rotate(90deg);
}
.cta-banner {
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
}
.cta-banner h2 { color: #fff; font-size: 26px; margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,.7); margin-bottom: 20px; }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--c-bg);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px 20px 24px;
    border-bottom: 1px solid var(--c-border);
    box-shadow: 0 8px 20px rgba(0,0,0,.06);
    z-index: 999;
  }
  .nav-menu.open { display: flex; }
  .nav-item, .nav-cta { width: 100%; }
  .nav-item .nav-link { padding: 12px 8px; border-radius: 8px; font-size: 15px; }
  .nav-item .nav-link:hover { background: var(--c-green-soft); }
  .nav-item .nav-link::after { display: none; }
  .nav-cta .btn-primary-custom { display: flex; justify-content: center; padding: 12px; margin-top: 8px; width: 100%; }
  .article-hero { padding: 48px 0 88px; }
  .article-hero h1 { font-size: 28px; }
  .article-main { padding: 0 16px 56px; }
  .article-body { padding: 32px 24px; }
  .related-zone { padding: 48px 0 64px; }
}
@media (max-width: 767.98px) {
  .article-hero h1 { font-size: 24px; }
  .article-meta-row { gap: 12px; font-size: 13px; }
  .breadcrumb-custom .crumb-current { max-width: 220px; }
  .article-body { padding: 24px 18px; }
  .article-body p { font-size: 15px; line-height: 1.75; }
  .article-body h2 { font-size: 21px; }
  .article-body h3 { font-size: 18px; }
  .related-card h3 { font-size: 17px; }
  .article-actions { flex-direction: column; align-items: stretch; }
  .article-actions .btn { width: 100%; }
  .site-footer { padding: 48px 0 0; }
  .site-footer .footer-bottom { margin-top: 32px; }
}
@media (max-width: 575.98px) {
  .site-header .container { height: 64px; }
  .nav-menu { top: 64px; }
  .logo-text { font-size: 17px; }
  .article-hero { padding: 40px 0 80px; }
  .article-hero h1 { font-size: 22px; line-height: 1.35; }
  .article-main { margin-top: -40px; }
  .article-body { border-radius: 14px; padding: 20px 16px; }
  .article-empty { padding: 48px 16px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0E3A30;
            --primary-light: #145044;
            --primary-soft: #F0F5F1;
            --accent: #C49A5A;
            --accent-light: #D9B57A;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text: #1F2421;
            --text-light: #6B716B;
            --border: #E4DFD6;
            --radius: 16px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --shadow: 0 1px 3px rgba(27, 45, 38, .08);
            --shadow-hover: 0 12px 28px rgba(27, 45, 38, .12);
            --transition: .2s ease;
            --header-height: 76px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s var(--transition);
        }

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

        button {
            border: none;
            cursor: pointer;
            font-family: inherit;
        }

        input,
        button {
            font-family: inherit;
        }

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

        /* ========== 按钮 ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--primary);
            color: #fff;
            border: 1.5px solid var(--primary);
            border-radius: 10px;
            padding: 12px 32px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            transition: all .2s var(--transition);
            letter-spacing: .5px;
            min-height: 44px;
        }

        .btn-primary-custom:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196, 154, 90, .25);
        }

        .btn-primary-custom:focus-visible {
            outline: 3px solid rgba(196, 154, 90, .5);
            outline-offset: 2px;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: 10px;
            padding: 12px 32px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            transition: all .2s var(--transition);
            min-height: 44px;
        }

        .btn-outline-custom:hover {
            background-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-custom:focus-visible {
            outline: 3px solid rgba(14, 58, 48, .4);
            outline-offset: 2px;
        }

        .btn-accent-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--accent);
            color: var(--primary);
            border: 1.5px solid var(--accent);
            border-radius: 10px;
            padding: 12px 32px;
            font-size: 16px;
            font-weight: 600;
            transition: all .2s var(--transition);
            min-height: 44px;
        }

        .btn-accent-custom:hover {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-accent-custom:focus-visible {
            outline: 3px solid rgba(196, 154, 90, .5);
            outline-offset: 2px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(246, 244, 239, .92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(14, 58, 48, .08);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: 10px;
            flex-shrink: 0;
        }

        .logo-mark svg {
            width: 24px;
            height: 24px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .3px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            background: transparent;
            border-radius: 8px;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            margin: 0;
        }

        .nav-link {
            display: inline-block;
            padding: 10px 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-bottom: 2px solid transparent;
            line-height: 1.4;
            transition: all .2s var(--transition);
            position: relative;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .25s ease;
            border-radius: 2px;
        }

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

        .nav-link:hover::after {
            transform: scaleX(1);
        }

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

        .nav-link.active::after {
            transform: scaleX(1);
            background: var(--primary);
        }

        .nav-cta {
            margin-left: 10px;
        }

        .nav-cta .btn-primary-custom {
            padding: 10px 24px;
            font-size: 14px;
            border-radius: 10px;
        }

        /* ========== Banner 区 ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, #EAE6DC 0%, var(--bg) 60%, #F1EDE3 100%);
            padding: 72px 0 64px;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-banner::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(196, 154, 90, .10);
        }

        .category-banner::after {
            content: "";
            position: absolute;
            bottom: -120px;
            left: 10%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(14, 58, 48, .06);
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .breadcrumb-custom a {
            color: var(--text-light);
            transition: color .2s;
        }

        .breadcrumb-custom a:hover {
            color: var(--primary);
        }

        .breadcrumb-custom .sep {
            color: var(--border);
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 30px;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .category-banner h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 16px;
            line-height: 1.2;
            letter-spacing: .5px;
        }

        .category-banner .lead {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-light);
            max-width: 720px;
            margin: 0;
        }

        /* ========== 左右分栏要点区 ========== */
        .feature-split {
            padding: 88px 0;
            background: var(--bg);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .feature-split h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .feature-split .desc {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 32px;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            padding: 0;
            margin: 0;
            list-style: none;
        }

        .feature-list li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            background: var(--primary-soft);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .feature-icon svg {
            width: 22px;
            height: 22px;
        }

        .feature-list h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

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

        .feature-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            min-height: 380px;
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .feature-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(14, 58, 48, .18));
        }

        /* ========== 2x2 服务卡片 ========== */
        .service-grid {
            padding: 88px 0;
            background: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }

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

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            height: 100%;
            transition: all .25s var(--transition);
        }

        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-card .card-icon {
            width: 54px;
            height: 54px;
            background: var(--primary-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card .card-icon svg {
            width: 26px;
            height: 26px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            margin: 0;
        }

        .service-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color .2s;
        }

        .service-card .card-link:hover {
            color: var(--accent);
        }

        /* ========== 流程区 ========== */
        .process-section {
            padding: 88px 0;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }

        .process-step {
            text-align: center;
            padding: 32px 24px;
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all .25s var(--transition);
            height: 100%;
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .step-number {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

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

        /* ========== FAQ 区 ========== */
        .faq-section {
            padding: 88px 0;
            background: #fff;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow .25s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-item .accordion-button {
            background: transparent;
            box-shadow: none;
            padding: 24px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 16px;
            border-radius: var(--radius) !important;
            position: relative;
        }

        .faq-item .accordion-button::after {
            background-image: none;
            content: "+";
            font-size: 26px;
            font-weight: 300;
            color: var(--primary);
            width: auto;
            height: auto;
            transition: transform .3s ease;
            margin-left: auto;
        }

        .faq-item .accordion-button:not(.collapsed)::after {
            content: "−";
            transform: rotate(0deg);
            color: var(--accent);
        }

        .faq-item .accordion-button:not(.collapsed) {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .faq-item .accordion-body {
            padding: 0 28px 24px 28px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            border-top: 1px solid var(--border);
            background: #fff;
            border-radius: 0 0 var(--radius) var(--radius);
        }

        .faq-num {
            width: 32px;
            height: 32px;
            min-width: 32px;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
        }

        .accordion-button:not(.collapsed) .faq-num {
            background: var(--primary);
            color: #fff;
        }

        /* ========== 登录 CTA 区 ========== */
        .login-cta-section {
            padding: 88px 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .login-cta-section::before {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(196, 154, 90, .12);
            top: -120px;
            right: -80px;
        }

        .login-cta-section::after {
            content: "";
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
            bottom: -100px;
            left: -60px;
        }

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

        .login-cta-text h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .login-cta-text p {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .login-cta-points {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .login-cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .9);
            font-size: 15px;
            margin-bottom: 10px;
        }

        .login-cta-points li svg {
            width: 18px;
            height: 18px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .login-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
            max-width: 460px;
            margin-left: auto;
        }

        .login-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .login-card .login-sub {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 28px;
        }

        .form-label-custom {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        .form-control-custom {
            width: 100%;
            height: 46px;
            border: 1px solid #D8D2C5;
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 15px;
            background: #FCFBF8;
            color: var(--text);
            transition: all .2s ease;
            margin-bottom: 18px;
        }

        .form-control-custom:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(14, 58, 48, .1);
            background: #fff;
        }

        .login-card .btn-primary-custom {
            width: 100%;
            margin-top: 4px;
        }

        .login-links {
            display: flex;
            justify-content: space-between;
            margin-top: 18px;
            font-size: 14px;
        }

        .login-links a {
            color: var(--text-light);
        }

        .login-links a:hover {
            color: var(--primary);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 0;
        }

        .site-footer .logo-text {
            color: #fff;
            font-size: 22px;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .65);
            margin-top: 16px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: all .2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            margin-top: 48px;
            padding: 20px 0;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            margin: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .nav-toggle {
                display: flex;
            }

            .nav-menu {
                display: none;
                flex-direction: column;
                align-items: stretch;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg);
                border-bottom: 1px solid var(--border);
                padding: 16px 20px;
                gap: 4px;
                box-shadow: 0 12px 24px rgba(14, 58, 48, .08);
            }

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

            .nav-item {
                margin: 0;
            }

            .nav-link {
                display: block;
                padding: 12px 14px;
                font-size: 16px;
                border-radius: 8px;
            }

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

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

            .nav-cta {
                margin: 12px 0 0;
            }

            .nav-cta .btn-primary-custom {
                width: 100%;
                padding: 12px;
            }

            .category-banner {
                padding: 56px 0 48px;
            }

            .category-banner h1 {
                font-size: 32px;
            }

            .feature-split {
                padding: 64px 0;
            }

            .feature-split h2 {
                font-size: 26px;
            }

            .feature-media {
                margin-top: 40px;
                min-height: 300px;
            }

            .feature-media img {
                min-height: 300px;
            }

            .service-grid {
                padding: 64px 0;
            }

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

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

            .login-cta-section {
                padding: 64px 0;
            }

            .login-card {
                margin: 40px auto 0;
            }
        }

        @media (max-width: 767.98px) {
            .logo-text {
                font-size: 17px;
            }

            .category-banner h1 {
                font-size: 28px;
            }

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

            .feature-split h2 {
                font-size: 22px;
            }

            .feature-media,
            .feature-media img {
                min-height: 240px;
            }

            .process-step {
                margin-bottom: 16px;
            }

            .faq-item .accordion-button {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-item .accordion-body {
                padding: 16px 20px 20px;
            }

            .login-cta-text h2 {
                font-size: 26px;
            }

            .login-card {
                padding: 28px;
            }

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

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .logo-mark {
                width: 38px;
                height: 38px;
            }

            .category-banner {
                padding: 44px 0 40px;
            }

            .category-banner h1 {
                font-size: 26px;
            }

            .feature-split {
                padding: 48px 0;
            }

            .service-grid {
                padding: 48px 0;
            }

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

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

            .login-cta-section {
                padding: 48px 0;
            }

            .service-card {
                margin-bottom: 20px;
            }

            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
            }

            .login-links {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0E3A30;
            --primary-light: #175241;
            --primary-bg: #F0F5F1;
            --accent: #C49A5A;
            --accent-light: #E8DFD0;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text: #1F2421;
            --muted: #6B716B;
            --border: #E4DFD6;
            --radius: 16px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --shadow: 0 1px 3px rgba(27, 45, 38, .08);
            --shadow-hover: 0 12px 28px rgba(27, 45, 38, .12);
            --transition: .2s ease;
            --spacer: 80px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            transition: color var(--transition);
        }
        button {
            border: none;
            outline: none;
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(246, 244, 239, .92);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s ease;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(27, 45, 38, .08);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
            line-height: 1.2;
        }
        .site-logo:hover {
            color: var(--primary);
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-item {
            margin-left: 8px;
        }
        .nav-link {
            padding: 8px 14px;
            font-weight: 500;
            font-size: 15px;
            color: var(--text);
            position: relative;
            border-radius: 8px;
            line-height: 1.5;
            display: inline-block;
            transition: color var(--transition), background var(--transition);
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: calc(100% - 14px);
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            transition: right .3s ease;
        }
        .nav-link:hover,
        .nav-link:focus-visible {
            color: var(--primary);
            outline: none;
        }
        .nav-link:hover::after,
        .nav-link:focus-visible::after {
            right: 14px;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            right: 14px;
        }
        .nav-cta {
            margin-left: 16px;
        }
        .btn-primary-custom {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            display: inline-block;
            line-height: 1.5;
        }
        .btn-primary-custom:hover,
        .btn-primary-custom:focus-visible {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 16px rgba(196, 154, 90, .35);
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border-radius: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            padding: 0;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle:hover span {
            background: var(--accent);
        }

        /* ===== 按钮通用 ===== */
        .btn-outline-custom {
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 10px 24px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            background: transparent;
            display: inline-block;
            line-height: 1.5;
            transition: all var(--transition);
        }
        .btn-outline-custom:hover,
        .btn-outline-custom:focus-visible {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(14, 58, 48, .2);
        }
        .btn-light-custom {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: var(--primary);
            padding: 12px 32px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 16px;
            display: inline-block;
            transition: all var(--transition);
            line-height: 1.5;
        }
        .btn-light-custom:hover,
        .btn-light-custom:focus-visible {
            background: #fff;
            border-color: #fff;
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(0, 0, 0, .15);
        }
        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, .7);
            color: #fff;
            padding: 12px 32px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 16px;
            display: inline-block;
            transition: all var(--transition);
            line-height: 1.5;
        }
        .btn-outline-light:hover,
        .btn-outline-light:focus-visible {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: #fff;
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: var(--spacer) 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--muted);
            font-size: 16px;
            margin-bottom: 0;
        }

        /* ===== 深色横幅 ===== */
        .category-hero {
            background: linear-gradient(135deg, rgba(14, 58, 48, .92) 0%, rgba(14, 58, 48, .82) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            color: #fff;
            padding: 88px 0 76px;
            position: relative;
        }
        .category-hero .breadcrumb {
            margin-bottom: 24px;
            --bs-breadcrumb-divider-color: rgba(255, 255, 255, .5);
            --bs-breadcrumb-item-active-color: rgba(255, 255, 255, .75);
        }
        .category-hero .breadcrumb a {
            color: rgba(255, 255, 255, .85);
            font-size: 14px;
        }
        .category-hero .breadcrumb a:hover {
            color: var(--accent);
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 18px;
            color: #fff;
            letter-spacing: 1px;
        }
        .category-hero .lead {
            color: rgba(255, 255, 255, .88);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== 场景区 ===== */
        .scenarios-section {
            background: var(--bg);
        }
        .scenario-row {
            padding: 44px 0;
            border-bottom: 1px solid var(--border);
        }
        .scenario-row:first-of-type {
            padding-top: 20px;
        }
        .scenario-row:last-of-type {
            border-bottom: none;
            padding-bottom: 0;
        }
        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: var(--card-bg);
        }
        .scenario-media img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .scenario-media:hover img {
            transform: scale(1.03);
        }
        .scenario-content {
            padding: 12px 0 12px 8px;
        }
        .scenario-row:nth-of-type(even) .scenario-content {
            padding: 12px 8px 12px 0;
        }
        .scenario-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid rgba(14, 58, 48, .12);
        }
        .scenario-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin: 16px 0 12px;
            line-height: 1.35;
        }
        .scenario-content p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        /* ===== 步骤区 ===== */
        .steps-section {
            background: var(--primary-bg);
            padding: var(--spacer) 0;
            border-top: 1px solid rgba(14, 58, 48, .06);
            border-bottom: 1px solid rgba(14, 58, 48, .06);
        }
        .step-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 20px 26px;
            text-align: center;
            box-shadow: var(--shadow);
            height: 100%;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card::after {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 14px;
            z-index: 2;
            background: var(--primary-bg);
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-card:last-child::after {
            display: none;
        }
        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: var(--primary);
            color: #fff;
            font-size: 19px;
            font-weight: 700;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 14px rgba(14, 58, 48, .2);
        }
        .step-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
            padding: 0 4px;
        }

        /* ===== 对照表 ===== */
        .table-section {
            background: var(--bg);
        }
        .table-wrapper {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            max-width: 1040px;
            margin: 0 auto;
        }
        .table {
            margin-bottom: 0;
            vertical-align: middle;
        }
        .table> :not(caption)>*>* {
            border-bottom-color: var(--border);
            padding: 18px 16px;
            font-size: 15px;
            color: var(--text);
        }
        .table thead th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-bottom: none;
            white-space: nowrap;
            letter-spacing: .5px;
        }
        .table thead th:first-child {
            border-radius: 10px 0 0 0;
        }
        .table thead th:last-child {
            border-radius: 0 10px 0 0;
        }
        .table tbody tr:hover td {
            background: var(--primary-bg);
        }
        .table tbody td {
            background: transparent;
            transition: background var(--transition);
            font-weight: 400;
        }
        .table tbody td:first-child {
            font-weight: 600;
            color: var(--primary);
        }
        .table-responsive {
            border-radius: 10px;
            overflow: hidden;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--card-bg);
            padding-bottom: var(--spacer);
        }
        .faq-section .section-head {
            margin-bottom: 40px;
        }
        .faq-section .accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-section .accordion-item {
            border: none;
            border-radius: var(--radius);
            background: var(--card-bg);
            margin-bottom: 14px;
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .faq-section .accordion-button {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            background: var(--card-bg);
            border-radius: var(--radius) !important;
            box-shadow: none;
            transition: background var(--transition), color var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--primary-bg);
            color: var(--primary);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius) 0 0 var(--radius) !important;
        }
        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(14, 58, 48, .15);
            outline: none;
        }
        .faq-section .accordion-button::after {
            display: none;
        }
        .faq-section .accordion-button .fa-chevron-down {
            margin-left: auto;
            color: var(--accent);
            transition: transform .3s ease;
        }
        .faq-section .accordion-button:not(.collapsed) .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-index {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .accordion-button:not(.collapsed) .faq-index {
            background: var(--accent);
            color: var(--primary);
        }
        .faq-section .accordion-body {
            padding: 18px 24px 22px 70px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--border);
            background: var(--card-bg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #0b2f26 100%);
            padding: 68px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .8);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-note {
            display: block;
            margin-top: 18px;
            color: rgba(255, 255, 255, .5);
            font-size: 13px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .82);
            padding: 64px 0 0;
        }
        .site-footer .row {
            row-gap: 32px;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-brand {
            margin-bottom: 14px;
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .7);
            max-width: 420px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .72);
            font-size: 14px;
            transition: color var(--transition), padding-left .2s ease;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
        }
        .footer-bottom p {
            margin-bottom: 0;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            text-align: center;
        }

        /* ===== 响应式 ===== */
        @media(max-width:991.98px) {
            :root {
                --spacer: 56px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: 76px;
                right: 0;
                width: 280px;
                height: calc(100vh - 76px);
                background: var(--bg);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 28px;
                gap: 6px;
                transform: translateX(100%);
                transition: transform .3s ease;
                box-shadow: -8px 0 24px rgba(27, 45, 38, .1);
                overflow-y: auto;
            }
            .nav-menu.open {
                transform: translateX(0);
            }
            .nav-item,
            .nav-cta {
                margin-left: 0;
                width: 100%;
            }
            .nav-link {
                display: block;
                padding: 12px 14px;
                font-size: 16px;
            }
            .nav-link::after {
                display: none;
            }
            .nav-link:hover {
                background: var(--primary-bg);
                border-radius: 10px;
            }
            .nav-link.active {
                background: var(--primary-bg);
                border-radius: 10px;
            }
            .nav-cta {
                margin-top: 12px;
            }
            .nav-cta .btn-primary-custom {
                width: 100%;
                text-align: center;
            }
            .category-hero {
                padding: 64px 0 56px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .scenario-row {
                padding: 36px 0;
            }
            .scenario-row:nth-of-type(even) .scenario-content {
                padding: 12px 0;
            }
            .scenario-content {
                padding: 12px 0;
            }
            .scenario-media img {
                height: 240px;
            }
            .step-card::after {
                display: none;
            }
            .step-card {
                margin-bottom: 20px;
            }
            .steps-section .row {
                row-gap: 0;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .table-wrapper {
                padding: 20px 14px;
            }
            .faq-section .accordion-body {
                padding-left: 20px;
            }
        }
        @media(max-width:575.98px) {
            :root {
                --spacer: 44px;
            }
            .site-header .container {
                min-height: 64px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
                border-radius: 9px;
            }
            .nav-menu {
                top: 64px;
                height: calc(100vh - 64px);
            }
            .category-hero {
                padding: 48px 0 44px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .lead {
                font-size: 15px;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .section-head h2 {
                font-size: 23px;
            }
            .section-head p {
                font-size: 15px;
            }
            .scenario-media img {
                height: 200px;
            }
            .scenario-content h3 {
                font-size: 21px;
            }
            .scenario-content p {
                font-size: 15px;
            }
            .step-card {
                padding: 22px 14px;
            }
            .step-card p {
                font-size: 13px;
            }
            .table thead th {
                font-size: 13px;
                white-space: nowrap;
            }
            .table> :not(caption)>*>* {
                font-size: 13px;
                padding: 14px 12px;
            }
            .faq-section .accordion-button {
                font-size: 15px;
                padding: 18px 16px;
            }
            .faq-section .accordion-body {
                font-size: 14px;
                padding: 16px 18px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-light-custom,
            .btn-outline-light {
                width: 100%;
                max-width: 260px;
                text-align: center;
            }
            .footer-bottom p {
                font-size: 13px;
            }
        }