/* roulang page: index */
:root {
  --primary: #0a1a33;
  --primary-light: #0f2d5a;
  --accent: #ff6b1a;
  --accent-hover: #e5570a;
  --accent-soft: #fff1e8;
  --gold: #ffb800;
  --bg-light: #f4f7fb;
  --text-main: #1a2238;
  --text-muted: #5a6b85;
  --border: #e3e9f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 12px 34px rgba(10, 37, 64, .08);
  --shadow-lg: 0 24px 60px rgba(10, 37, 64, .14);
  --spacing-section: 90px;
}
* {
  box-sizing: border-box;
}
body {
  font-family: "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #fff;
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  max-width: 1200px;
}
.section-pad {
  padding: var(--spacing-section) 0;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 48px;
}
.text-accent {
  color: var(--accent) !important;
}
.text-gold {
  color: var(--gold) !important;
}
.bg-soft {
  background: var(--bg-light);
}

/* Header */
.site-header {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 1050;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(10, 37, 64, .05);
}
.site-header .navbar {
  padding: 14px 0;
}
.site-header .navbar-brand {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-header .navbar-brand .brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 16px rgba(255, 107, 26, .35);
}
.site-header .nav-link {
  font-weight: 600;
  color: var(--text-main) !important;
  padding: 10px 16px !important;
  border-radius: var(--radius-sm);
  transition: all .25s ease;
}
.site-header .nav-link:hover {
  color: var(--accent) !important;
  background: var(--accent-soft);
}
.site-header .nav-link.active {
  color: var(--accent) !important;
  background: var(--accent-soft);
  position: relative;
}
.site-header .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #ff9345);
  color: #fff !important;
  font-weight: 700;
  border: none;
  padding: 12px 28px;
  border-radius: 50px;
  box-shadow: 0 8px 20px rgba(255, 107, 26, .3);
  transition: all .25s ease;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(255, 107, 26, .42);
  color: #fff !important;
}
.btn-outline-accent {
  border: 2px solid var(--accent);
  color: var(--accent) !important;
  font-weight: 700;
  padding: 10px 28px;
  border-radius: 50px;
  transition: all .25s ease;
  background: transparent;
}
.btn-outline-accent:hover {
  background: var(--accent);
  color: #fff !important;
  transform: translateY(-2px);
}

/* Hero */
.hero {
  position: relative;
  min-height: 660px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(6, 20, 42, .94) 15%, rgba(10, 37, 64, .82) 48%, rgba(255, 107, 26, .32) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 90px 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .14);
  backdrop-filter: blur(6px);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, .24);
  margin-bottom: 22px;
}
.hero-badge i {
  color: var(--gold);
}
.hero h1 {
  font-size: clamp(34px, 6vw, 62px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 2px;
  margin-bottom: 18px;
}
.hero h1 span {
  color: var(--gold);
}
.hero-desc {
  font-size: 17px;
  max-width: 620px;
  color: rgba(255, 255, 255, .88);
  margin-bottom: 34px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.btn-hero {
  background: linear-gradient(135deg, var(--gold), #ffb800);
  color: var(--primary) !important;
  font-weight: 800;
  padding: 14px 34px;
  border-radius: 50px;
  border: none;
  box-shadow: 0 10px 30px rgba(255, 184, 0, .35);
  transition: all .25s ease;
}
.btn-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(255, 184, 0, .45);
}
.btn-ghost {
  border: 2px solid rgba(255, 255, 255, .55);
  color: #fff;
  font-weight: 700;
  padding: 12px 30px;
  border-radius: 50px;
  transition: all .25s ease;
  background: transparent;
}
.btn-ghost:hover {
  background: #fff;
  color: var(--primary);
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 54px;
}
.hero-stat .num {
  font-size: 30px;
  font-weight: 900;
  color: var(--gold);
}
.hero-stat .txt {
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
}

/* Stats bar */
.stats-bar {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  margin-top: -38px;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}
.stat-card {
  text-align: center;
  padding: 14px 10px;
  border-right: 1px solid rgba(255, 255, 255, .12);
}
.stat-card:last-child {
  border-right: none;
}
.stat-card .stat-num {
  font-size: 34px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1.2;
}
.stat-card .stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, .75);
  margin-top: 6px;
}

/* Category cards */
.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow);
  transition: all .3s ease;
}
.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.cat-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.cat-card:hover img {
  transform: scale(1.05);
}
.cat-card-overlay {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 28px;
  background: linear-gradient(to top, rgba(6, 20, 42, .92), rgba(6, 20, 42, .15));
  color: #fff;
}
.cat-card-overlay .tag {
  display: inline-block;
  background: var(--accent);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cat-card-overlay h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 8px;
}
.cat-card-overlay p {
  font-size: 14px;
  color: rgba(255, 255, 255, .82);
  margin-bottom: 14px;
}
.cat-card-overlay .link {
  font-weight: 700;
  color: var(--gold);
}

/* News list */
.news-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px;
  margin-bottom: 18px;
  transition: all .25s ease;
  display: block;
}
.news-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--text-muted);
}
.badge-cat {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 50px;
}
.news-time {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.news-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.4;
}
.news-card p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-side {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 30px;
  border: 1px solid var(--border);
}
.news-side h4 {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  padding-bottom: 14px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 18px;
}
.news-side li {
  padding: 14px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 15px;
  font-weight: 500;
}
.news-side li a {
  color: var(--text-main);
  transition: all .2s;
}
.news-side li a:hover {
  color: var(--accent);
}
.news-side li:last-child {
  border-bottom: none;
}
.empty-tip {
  text-align: center;
  color: var(--text-muted);
  padding: 60px 20px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 2px dashed var(--border);
  font-size: 16px;
}

/* Feature cards */
.feature-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 24px;
  transition: all .3s ease;
  height: 100%;
}
.feature-card img {
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  object-fit: cover;
  aspect-ratio: 16 / 9;
  width: 100%;
}
.feature-card .tag {
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 1px;
}
.feature-card h4 {
  font-size: 17px;
  font-weight: 800;
  margin-top: 8px;
  color: var(--primary);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 10px 0 0;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* Steps */
.step-card {
  position: relative;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 36px 24px;
  text-align: center;
  transition: all .3s ease;
  height: 100%;
}
.step-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}
.step-num {
  width: 58px;
  height: 58px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  border-radius: 16px;
  color: #fff;
  font-size: 22px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(255, 107, 26, .3);
}
.step-card h4 {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* Service cards */
.service-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 30px;
  transition: all .3s ease;
  height: 100%;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: all .3s;
}
.service-card:hover .service-icon {
  background: var(--accent);
  color: #fff;
}
.service-card h4 {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* FAQ */
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all .25s;
}
.faq-item .faq-q {
  padding: 22px 24px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0;
}
.faq-item .faq-q i {
  color: var(--accent);
  transition: transform .3s;
}

/* Alternative accordion style without bootstrap */
.faq-item .faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding-bottom: 20px;
}
.faq-item.open .faq-q i {
  transform: rotate(45deg);
}
.faq-item .faq-a p {
  color: var(--text-muted);
  font-size: 15px;
  margin: 0;
}

/* CTA */
.cta-section {
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: var(--spacing-section) 0;
  position: relative;
  color: #fff;
}
.cta-section .cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 20, 42, .84);
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  margin-bottom: 16px;
}
.cta-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 30px;
}

/* Footer */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, .75);
  padding: 70px 0 0;
  margin-top: 0;
}
.site-footer h5 {
  color: #fff;
  font-weight: 700;
  margin-bottom: 20px;
  font-size: 17px;
}
.site-footer .footer-brand {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.site-footer .footer-brand .brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer ul li {
  padding: 6px 0;
}
.site-footer ul li a {
  color: rgba(255, 255, 255, .75);
  transition: all .2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.site-footer ul li a:hover {
  color: var(--gold);
}
.footer-bottom {
  margin-top: 50px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
}

/* Misc */
.extra-info {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.extra-img {
  height: 100%;
  min-height: 320px;
  background-size: cover;
  background-position: center;
}
.extra-body {
  padding: 44px;
}
.extra-body h3 {
  font-size: 26px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 16px;
}
.extra-body p {
  color: var(--text-muted);
  margin-bottom: 16px;
}
.extra-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}
.extra-list li {
  padding: 9px 0;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
}
.extra-list li i {
  color: var(--accent);
  width: 20px;
}
.tag-chip {
  display: inline-block;
  background: var(--bg-light);
  color: var(--text-muted);
  border-radius: 50px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  margin: 0 8px 8px 0;
  border: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 992px) {
  :root {
    --spacing-section: 60px;
  }
  .site-header .navbar-collapse {
    padding-top: 12px;
  }
  .site-header .nav-link.active::after {
    display: none;
  }
  .hero {
    min-height: 540px;
  }
  .stats-bar .stat-card {
    border-right: none;
    margin-bottom: 16px;
  }
  .hero-stats {
    gap: 20px;
  }
}
@media (max-width: 768px) {
  .hero {
    min-height: 500px;
  }
  .hero-content {
    padding: 60px 0;
  }
  .hero h1 {
    font-size: 32px;
  }
  .section-title {
    font-size: 26px;
  }
  .extra-body {
    padding: 28px;
  }
}
@media (max-width: 576px) {
  .hero-desc {
    font-size: 15px;
  }
  .hero-actions .btn {
    width: 100%;
    text-align: center;
  }
  .stat-card {
    padding: 10px;
  }
  .stat-card .stat-num {
    font-size: 24px;
  }
  .cat-card {
    min-height: 240px;
  }
  .news-card {
    padding: 20px;
  }
  .site-footer {
    padding-top: 50px;
  }
}

/* roulang page: article */
:root {
  --primary: #7c5cfc;
  --primary-dark: #5b3df0;
  --primary-light: #a78bfa;
  --secondary: #00d2ff;
  --accent: #ffb347;
  --dark-bg: #0f0e17;
  --dark-panel: #1a1a2e;
  --body-bg: #f5f6fa;
  --card-bg: #ffffff;
  --text-main: #2d3436;
  --text-muted: #7b8c9d;
  --border-light: #e9edf4;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 12px rgba(15, 14, 23, .06);
  --shadow-md: 0 8px 30px rgba(15, 14, 23, .08);
  --shadow-lg: 0 16px 48px rgba(15, 14, 23, .12);
  --transition-base: all .3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--body-bg);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; border: 0; vertical-align: middle; }
a { color: var(--primary); text-decoration: none; transition: var(--transition-base); }
a:hover { color: var(--primary-dark); }
button, input, textarea { font-family: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.4; margin: 0 0 .5em; }
p { margin: 0 0 1rem; }
.container { max-width: 1200px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 2px 20px rgba(15, 14, 23, .04);
}
.navbar {
  padding-top: 14px;
  padding-bottom: 14px;
}
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark-bg);
  letter-spacing: .5px;
}
.navbar-brand:hover { color: var(--primary); }
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  color: #fff;
  font-size: 1.2rem;
  box-shadow: 0 4px 14px rgba(124, 92, 252, .35);
}
.navbar-nav .nav-link {
  font-weight: 600;
  color: var(--text-main);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition-base);
}
.navbar-nav .nav-link:hover {
  color: var(--primary);
  background: rgba(124, 92, 252, .06);
}
.navbar-nav .nav-link.active {
  color: var(--primary);
  background: rgba(124, 92, 252, .08);
}
.navbar-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 2px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: none;
  border-radius: 50px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 4px 18px rgba(124, 92, 252, .35);
  transition: var(--transition-base);
  cursor: pointer;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124, 92, 252, .45);
  color: #fff;
}
.btn-outline-light-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: 2px solid rgba(255, 255, 255, .6);
  border-radius: 50px;
  font-weight: 700;
  color: #fff;
  background: transparent;
  transition: var(--transition-base);
}
.btn-outline-light-custom:hover {
  background: rgba(255, 255, 255, .1);
  border-color: #fff;
  color: #fff;
}
.navbar-toggler {
  border: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: rgba(124, 92, 252, .08);
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(124, 92, 252, .25); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%237c5cfc' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 72px 0 64px;
  background: linear-gradient(135deg, rgba(15, 14, 23, .93), rgba(26, 26, 46, .88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 92, 252, .35), transparent 70%);
  z-index: 0;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  color: rgba(255, 255, 255, .65);
  margin-bottom: 18px;
}
.breadcrumb-wrap a {
  color: rgba(255, 255, 255, .75);
  text-decoration: none;
  transition: var(--transition-base);
}
.breadcrumb-wrap a:hover { color: #fff; }
.breadcrumb-wrap .sep { opacity: .5; }
.article-hero h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.35;
  max-width: 860px;
  margin-bottom: 18px;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, .3);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  font-size: .9rem;
  color: rgba(255, 255, 255, .75);
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tag-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 700;
  background: rgba(255, 179, 71, .2);
  color: var(--accent);
  border: 1px solid rgba(255, 179, 71, .4);
}

/* ===== Article Main ===== */
.article-main {
  padding: 56px 0 24px;
}
.article-content-wrap {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 44px;
  border: 1px solid var(--border-light);
}
.article-content {
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--text-main);
}
.article-content h2 {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}
.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--dark-bg);
}
.article-content p { margin-bottom: 1.25rem; }
.article-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.article-content ol {
  list-style: decimal;
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.article-content li { margin-bottom: .5rem; }
.article-content blockquote {
  background: rgba(124, 92, 252, .06);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 18px 22px;
  margin: 24px 0;
  color: var(--text-main);
  font-style: normal;
}
.article-content img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin: 20px 0;
}
.article-content a { text-decoration: underline; }
.article-content code {
  background: rgba(124, 92, 252, .08);
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: .88em;
}
.tag-list-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}
.tag-list-wrap .tag-label {
  font-size: .85rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 4px;
}
.tag-item {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  background: rgba(124, 92, 252, .08);
  color: var(--primary);
  font-size: .8rem;
  font-weight: 600;
  transition: var(--transition-base);
}
.tag-item:hover {
  background: rgba(124, 92, 252, .16);
  color: var(--primary-dark);
}

/* ===== Sidebar ===== */
.sidebar-col {
  padding-left: 16px;
}
.sidebar-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-card .card-title {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-light);
  position: relative;
}
.sidebar-card .card-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--primary);
}
.side-nav li {
  margin-bottom: 4px;
}
.side-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-weight: 600;
  font-size: .92rem;
  transition: var(--transition-base);
}
.side-nav a i {
  color: var(--primary);
  font-size: .8rem;
}
.side-nav a:hover {
  background: rgba(124, 92, 252, .06);
  color: var(--primary);
  transform: translateX(4px);
}
.side-nav a.active {
  background: rgba(124, 92, 252, .1);
  color: var(--primary);
}
.side-recommend-item {
  display: flex;
  gap: 12px;
  padding: 10px;
  border-radius: var(--radius-md);
  transition: var(--transition-base);
  margin-bottom: 6px;
}
.side-recommend-item:hover {
  background: rgba(124, 92, 252, .04);
  transform: translateY(-2px);
}
.side-recommend-item img {
  width: 76px;
  height: 60px;
  object-fit: cover;
  border-radius: 10px;
  flex-shrink: 0;
}
.side-recommend-item .rc-title {
  font-size: .88rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.side-recommend-item .rc-title:hover { color: var(--primary); }
.side-recommend-item .rc-meta {
  font-size: .76rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.help-card {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-lg);
  padding: 24px;
  color: #fff;
  margin-bottom: 24px;
}
.help-card h5 { color: #fff; font-weight: 800; }
.help-card p { font-size: .88rem; opacity: .9; }
.help-card .btn-accent {
  background: #fff;
  color: var(--primary);
  box-shadow: none;
  font-weight: 800;
}
.help-card .btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .2);
}

/* ===== Recommend Section ===== */
.recommend-section {
  padding: 48px 0 56px;
  background: #fff;
  border-top: 1px solid var(--border-light);
}
.section-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dark-bg);
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 48px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.section-sub {
  color: var(--text-muted);
  font-size: .95rem;
  margin-bottom: 32px;
}
.recommend-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  height: 100%;
  overflow: hidden;
}
.recommend-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: rgba(124, 92, 252, .2);
}
.recommend-card .rc-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-light);
}
.recommend-card .rc-body {
  padding: 20px 22px 24px;
}
.recommend-card .rc-tag {
  font-size: .75rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(124, 92, 252, .08);
  padding: 4px 10px;
  border-radius: 50px;
  display: inline-block;
  margin-bottom: 10px;
}
.recommend-card h5 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}
.recommend-card h5 a { color: var(--text-main); }
.recommend-card h5 a:hover { color: var(--primary); }
.recommend-card .rc-excerpt {
  font-size: .86rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
  font-size: .8rem;
  color: var(--text-muted);
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--dark-bg), var(--dark-panel)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-blend-mode: overlay;
  color: #fff;
  overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -60%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 92, 252, .3), transparent 70%);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -40%;
  right: -8%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 210, 255, .25), transparent 70%);
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}
.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.cta-section p {
  font-size: 1rem;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 36px;
}
.cta-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 36px;
}
.cta-stat h4 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 2px;
  line-height: 1.2;
}
.cta-stat span {
  font-size: .85rem;
  color: rgba(255, 255, 255, .6);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, .75);
  padding: 56px 0 0;
}
.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.site-footer .footer-brand .brand-icon {
  width: 38px;
  height: 38px;
  font-size: 1rem;
}
.site-footer p {
  font-size: .9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .55);
}
.site-footer h5 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.site-footer ul li { margin-bottom: 8px; }
.site-footer ul a {
  color: rgba(255, 255, 255, .6);
  font-size: .9rem;
  transition: var(--transition-base);
}
.site-footer ul a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.site-footer ul a i {
  font-size: .7rem;
  color: var(--primary-light);
}
.footer-bottom {
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, .08);
  text-align: center;
  font-size: .84rem;
  color: rgba(255, 255, 255, .4);
}

/* ===== Not Found ===== */
.not-found-wrap {
  text-align: center;
  padding: 100px 20px;
  min-height: 450px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.not-found-inner {
  max-width: 480px;
}
.not-found-inner .not-found-icon {
  font-size: 4rem;
  color: var(--primary);
  margin-bottom: 16px;
}
.not-found-inner h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--dark-bg);
  margin-bottom: 12px;
}
.not-found-inner p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-content-wrap { padding: 36px; }
  .sidebar-col { padding-left: 12px; }
}
@media (max-width: 991px) {
  .navbar-collapse {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-top: 10px;
    box-shadow: var(--shadow-md);
  }
  .navbar-nav .nav-link::after { display: none; }
  .navbar-nav .nav-link.active {
    background: rgba(124, 92, 252, .1);
    color: var(--primary);
  }
  .navbar-nav .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }
  .navbar-nav .nav-item { margin: 0 !important; }
  .navbar-nav .btn-accent {
    margin-top: 12px;
    width: 100%;
  }
  .article-main {
    padding-top: 32px;
  }
  .sidebar-col {
    padding-left: 0;
    margin-top: 32px;
  }
  .cta-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
}
@media (max-width: 768px) {
  .article-hero { padding: 48px 0 40px; }
  .article-hero h1 { font-size: 1.5rem; }
  .article-content-wrap { padding: 24px 20px; }
  .article-meta { gap: 10px; font-size: .82rem; }
  .tag-badge { font-size: .7rem; padding: 4px 10px; }
  .recommend-card .rc-img { height: 150px; }
  .cta-section { padding: 56px 0; }
  .cta-stats { gap: 16px; flex-direction: column; }
  .footer-bottom { font-size: .76rem; }
}
@media (max-width: 520px) {
  .article-content-wrap { padding: 20px 16px; }
  .article-content { font-size: .96rem; }
  .article-content h2 { font-size: 1.15rem; }
  .article-content h3 { font-size: 1.05rem; }
  .breadcrumb-wrap { font-size: .78rem; }
  .side-recommend-item img { width: 64px; height: 52px; }
  .section-title { font-size: 1.3rem; }
}

/* roulang page: category1 */
:root {
      --primary: #6d5df6;
      --primary-600: #5a4adf;
      --primary-100: #edecfd;
      --accent: #ff7a18;
      --accent-600: #f06500;
      --accent-100: #fff1e6;
      --dark: #0d0f26;
      --dark-800: #161836;
      --dark-700: #1e2148;
      --bg: #f4f5fb;
      --white: #ffffff;
      --text: #15173a;
      --muted: #64678f;
      --border: #e6e8f2;
      --radius: 18px;
      --radius-sm: 12px;
      --shadow-sm: 0 4px 14px rgba(13, 15, 38, .05);
      --shadow-md: 0 12px 32px rgba(13, 15, 38, .08);
      --shadow-lg: 0 24px 60px rgba(13, 15, 38, .14);
      --transition: all .25s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--primary-600);
    }

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

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

    .section {
      padding: 88px 0;
    }

    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--primary-100);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 5px 16px;
      border-radius: 50px;
      letter-spacing: .5px;
      margin-bottom: 16px;
    }

    .section-head h2 {
      font-size: clamp(28px, 4vw, 38px);
      font-weight: 800;
      color: var(--dark);
      letter-spacing: -1px;
      line-height: 1.25;
      margin-bottom: 14px;
    }

    .section-head p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.7;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 4px 24px rgba(13, 15, 38, .04);
    }

    .site-header .navbar {
      min-height: 76px;
      padding: 10px 0;
    }

    .navbar-brand {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark) !important;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.3px;
    }

    .navbar-brand .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), #8b6cf6);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      box-shadow: 0 6px 18px rgba(109, 93, 246, .32);
    }

    .site-header .navbar-nav .nav-link {
      color: var(--text);
      font-weight: 500;
      padding: 10px 16px;
      border-radius: 10px;
      font-size: 15px;
    }

    .site-header .navbar-nav .nav-link:hover,
    .site-header .navbar-nav .nav-link.active {
      color: var(--primary) !important;
      background: var(--primary-100);
    }

    .btn-accent {
      background: linear-gradient(135deg, var(--accent), #ff9a3c);
      border: none;
      color: #fff;
      font-weight: 600;
      border-radius: 12px;
      padding: 10px 20px;
      box-shadow: 0 6px 16px rgba(255, 122, 24, .32);
      transition: var(--transition);
    }

    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(255, 122, 24, .4);
      color: #fff;
    }

    .navbar-toggler {
      border: none !important;
      box-shadow: none !important;
      padding: 8px 12px;
    }

    .navbar-toggler:focus {
      outline: 2px solid var(--primary);
      border-radius: 8px;
    }

    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(13,15,38,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    /* ===== Page Banner ===== */
    .page-banner {
      position: relative;
      padding: 100px 0 90px;
      background: linear-gradient(135deg, rgba(13, 15, 38, .92), rgba(30, 33, 72, .78)),
        url('/assets/images/backpic/back-1.png') center / cover no-repeat;
      color: #fff;
    }

    .page-banner .breadcrumb {
      margin-bottom: 18px;
      background: rgba(255, 255, 255, .08);
      display: inline-flex;
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 13px;
      color: rgba(255, 255, 255, .8);
    }

    .page-banner .breadcrumb a {
      color: rgba(255, 255, 255, .6);
    }

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

    .page-banner .breadcrumb-item+.breadcrumb-item::before {
      color: rgba(255, 255, 255, .4);
    }

    .page-banner h1 {
      font-size: clamp(32px, 5vw, 48px);
      font-weight: 800;
      letter-spacing: -1.5px;
      line-height: 1.2;
      margin-bottom: 18px;
    }

    .page-banner h1 span {
      color: var(--accent);
    }

    .page-banner p {
      max-width: 540px;
      color: rgba(255, 255, 255, .72);
      font-size: 16px;
      margin-bottom: 30px;
    }

    .banner-stats {
      display: flex;
      gap: 30px;
      flex-wrap: wrap;
    }

    .banner-stats .stat-item {
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 16px;
      padding: 14px 22px;
      text-align: center;
      min-width: 110px;
    }

    .banner-stats .stat-item strong {
      display: block;
      font-size: 24px;
      font-weight: 800;
      color: #fff;
      line-height: 1.3;
    }

    .banner-stats .stat-item span {
      font-size: 13px;
      color: rgba(255, 255, 255, .65);
    }

    /* ===== Quick Start ===== */
    .quick-section {
      padding: 88px 0 30px;
    }

    .quick-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 26px;
      height: 100%;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
    }

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

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

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

    .quick-card .quick-icon {
      width: 60px;
      height: 60px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
    }

    .quick-card .quick-icon.purple {
      background: var(--primary-100);
      color: var(--primary);
    }

    .quick-card .quick-icon.orange {
      background: var(--accent-100);
      color: var(--accent);
    }

    .quick-card .quick-icon.green {
      background: #e4f7ee;
      color: #22b376;
    }

    .quick-card .quick-icon.blue {
      background: #e5f2ff;
      color: #2f8fe6;
    }

    .quick-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .quick-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
      margin-bottom: 0;
    }

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

    .quick-card .btn-link i {
      transition: transform .2s;
    }

    .quick-card .btn-link:hover i {
      transform: translateX(4px);
    }

    /* ===== Step Guide ===== */
    .step-section {
      position: relative;
      padding: 90px 0;
    }

    .step-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 30% 20%, rgba(109, 93, 246, .06), transparent 60%),
        radial-gradient(ellipse at 80% 80%, rgba(255, 122, 24, .05), transparent 50%);
      pointer-events: none;
    }

    .step-card {
      text-align: center;
      padding: 30px 22px;
      border-radius: var(--radius);
      position: relative;
      background: var(--white);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      height: 100%;
    }

    .step-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .step-number {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), #8b6cf6);
      color: #fff;
      font-weight: 800;
      font-size: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px;
      position: relative;
      box-shadow: 0 8px 20px rgba(109, 93, 246, .3);
    }

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

    .step-card p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.65;
      margin-bottom: 0;
    }

    .step-arrow {
      position: absolute;
      top: 38px;
      right: -18px;
      z-index: 3;
      color: var(--accent);
      font-size: 20px;
      display: none;
    }

    @media (min-width: 992px) {
      .step-arrow {
        display: block;
      }
    }

    /* ===== Guide List ===== */
    .guide-section {
      padding: 88px 0;
      background: var(--bg);
    }

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

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

    .guide-card__cover {
      position: relative;
      display: block;
      overflow: hidden;
      aspect-ratio: 16 / 10;
    }

    .guide-card__cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s ease;
    }

    .guide-card:hover .guide-card__cover img {
      transform: scale(1.05);
    }

    .guide-card__tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(13, 15, 38, .75);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: 50px;
      border: 1px solid rgba(255, 255, 255, .2);
    }

    .guide-card__body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .guide-card__body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .guide-card__body h3 a {
      color: var(--dark);
    }

    .guide-card__body h3 a:hover {
      color: var(--primary);
    }

    .guide-card__body p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
      margin-bottom: 16px;
      flex: 1;
    }

    .guide-card__meta {
      display: flex;
      align-items: center;
      gap: 14px;
      color: #9a9dbd;
      font-size: 13px;
      margin-bottom: 14px;
    }

    .guide-card__meta span {
      display: inline-flex;
      align-items: center;
    }

    .guide-card__body .btn-link {
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .guide-card__body .btn-link i {
      transition: transform .2s;
    }

    .guide-card__body .btn-link:hover i {
      transform: translateX(4px);
    }

    /* ===== Data Stats ===== */
    .stats-section {
      background: linear-gradient(135deg, #0d0f26 0%, #161836 100%);
      padding: 78px 0;
      color: #fff;
    }

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

    .stats-section .section-head p {
      color: rgba(255, 255, 255, .6);
    }

    .stat-card {
      text-align: center;
      padding: 30px 20px;
      background: rgba(255, 255, 255, .05);
      border: 1px solid rgba(255, 255, 255, .1);
      border-radius: var(--radius);
      height: 100%;
      transition: var(--transition);
    }

    .stat-card:hover {
      background: rgba(255, 255, 255, .1);
      transform: translateY(-4px);
    }

    .stat-card .stat-num {
      font-size: 42px;
      font-weight: 800;
      letter-spacing: -1px;
      color: var(--accent);
      line-height: 1.2;
    }

    .stat-card .stat-label {
      margin-top: 10px;
      font-size: 15px;
      color: rgba(255, 255, 255, .7);
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: 88px 0;
      background: var(--white);
    }

    .faq-accordion .accordion-item {
      border: 1px solid var(--border);
      border-radius: var(--radius-sm) !important;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: none;
      background: var(--white);
    }

    .faq-accordion .accordion-button {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--dark);
      background: #fafbfe;
      border: none;
      box-shadow: none;
    }

    .faq-accordion .accordion-button:not(.collapsed) {
      background: var(--primary-100);
      color: var(--primary);
    }

    .faq-accordion .accordion-button:focus {
      box-shadow: 0 0 0 3px rgba(109, 93, 246, .15);
    }

    .faq-accordion .accordion-body {
      padding: 20px 24px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
    }

    .faq-accordion .accordion-button::after {
      flex-shrink: 0;
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 90px 0;
      background: linear-gradient(120deg, rgba(13, 15, 38, .88), rgba(30, 33, 72, .75)),
        url('/assets/images/backpic/back-2.png') center / cover no-repeat;
      color: #fff;
    }

    .cta-inner {
      text-align: center;
      max-width: 680px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      font-size: clamp(30px, 4vw, 42px);
      font-weight: 800;
      letter-spacing: -1px;
      margin-bottom: 16px;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, .7);
      font-size: 16px;
      margin-bottom: 32px;
    }

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

    .btn-primary-custom {
      background: linear-gradient(135deg, var(--accent), #ff9a3c);
      border: none;
      padding: 14px 32px;
      border-radius: 14px;
      font-weight: 600;
      color: #fff;
      box-shadow: 0 8px 24px rgba(255, 122, 24, .35);
      transition: var(--transition);
    }

    .btn-primary-custom:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 30px rgba(255, 122, 24, .45);
      color: #fff;
    }

    .btn-ghost-custom {
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .24);
      padding: 14px 32px;
      border-radius: 14px;
      font-weight: 600;
      color: #fff;
      transition: var(--transition);
    }

    .btn-ghost-custom:hover {
      background: rgba(255, 255, 255, .16);
      color: #fff;
      transform: translateY(-3px);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #0d0f26;
      color: rgba(255, 255, 255, .7);
      padding: 56px 0 24px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-brand .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), #8b6cf6);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: #fff;
    }

    .site-footer p {
      font-size: 14px;
      line-height: 1.7;
    }

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

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

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

    .site-footer ul li a {
      color: rgba(255, 255, 255, .6);
      font-size: 14px;
      transition: var(--transition);
    }

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

    .footer-bottom {
      margin-top: 40px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, .1);
      text-align: center;
    }

    .footer-bottom p {
      font-size: 13px;
      color: rgba(255, 255, 255, .4);
      margin: 0;
    }

    /* ===== Responsive ===== */
    @media (max-width: 991.98px) {
      .site-header .navbar-collapse {
        background: var(--white);
        border-radius: 16px;
        margin-top: 14px;
        padding: 18px;
        box-shadow: var(--shadow-md);
        border: 1px solid var(--border);
      }

      .site-header .navbar-nav .nav-link {
        padding: 12px 16px;
      }

      .site-header .btn-accent {
        margin-top: 8px;
        display: inline-block;
        text-align: center;
        width: 100%;
      }

      .page-banner {
        padding: 70px 0 64px;
      }

      .section {
        padding: 64px 0;
      }

      .quick-card {
        margin-bottom: 16px;
      }

      .guide-card {
        margin-bottom: 16px;
      }

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

    @media (max-width: 767.98px) {
      .page-banner h1 {
        font-size: 30px;
      }

      .banner-stats {
        gap: 12px;
      }

      .banner-stats .stat-item {
        min-width: 90px;
        padding: 12px 14px;
      }

      .banner-stats .stat-item strong {
        font-size: 20px;
      }

      .section-head {
        margin-bottom: 34px;
      }

      .section-head h2 {
        font-size: 26px;
      }

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

      .cta-buttons .btn-primary-custom,
      .cta-buttons .btn-ghost-custom {
        width: 100%;
        text-align: center;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 14px;
        padding-right: 14px;
      }

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

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

      .page-banner {
        padding: 54px 0 48px;
      }

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

      .banner-stats .stat-item {
        min-width: 80px;
        padding: 10px 12px;
      }

      .banner-stats .stat-item strong {
        font-size: 18px;
      }

      .step-arrow {
        display: none;
      }

      .guide-card__body {
        padding: 20px;
      }

      .site-footer .col-lg-4 {
        margin-bottom: 24px;
      }
    }

    .btn:focus,
    .form-control:focus,
    .accordion-button:focus {
      outline: 3px solid rgba(109, 93, 246, .25);
      outline-offset: 2px;
    }

/* roulang page: category2 */
:root {
            --primary: #6C5CE7;
            --primary-dark: #5A4BD1;
            --primary-light: #8B7CF7;
            --accent: #FF6B6B;
            --accent-dark: #E85A5A;
            --accent-light: #FF8A8A;
            --secondary: #00B894;
            --warning: #FDCB6E;
            --dark-bg: #1E1B2E;
            --dark-card: #2A2640;
            --dark-card-hover: #35304F;
            --light-bg: #F8F9FC;
            --white: #FFFFFF;
            --text-main: #2D2A3E;
            --text-body: #5A576D;
            --text-muted: #8E8CA3;
            --border-light: #EAEAF2;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, .08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .12);
            --transition: all .3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

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

        /* ===== 导航 ===== */
        .site-header {
            background: var(--dark-bg);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .2);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white) !important;
            letter-spacing: 1px;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--white);
            box-shadow: 0 4px 12px rgba(108, 92, 231, .4);
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, .8);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 18px;
            border-radius: 8px;
            position: relative;
            transition: var(--transition);
        }

        .navbar-nav .nav-link:hover {
            color: var(--white);
            background: rgba(255, 255, 255, .08);
        }

        .navbar-nav .nav-link.active {
            color: var(--white);
            background: rgba(108, 92, 231, .25);
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--white);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 12px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(255, 107, 107, .35);
            display: inline-block;
            text-align: center;
            white-space: nowrap;
        }

        .btn-accent:hover {
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 107, .45);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: 10px;
            padding: 6px 10px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991px) {
            .navbar-nav {
                padding: 16px 0 8px;
            }

            .navbar-nav .nav-link {
                padding: 10px 16px;
                margin-bottom: 4px;
            }

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

            .btn-accent.ms-lg-3 {
                margin-left: 0;
                margin-top: 10px;
                display: inline-block;
            }
        }

        /* ===== 内页Banner ===== */
        .page-hero {
            background: var(--dark-bg);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 90px 0 70px;
            color: var(--white);
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 27, 46, .9), rgba(108, 92, 231, .65));
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 18px;
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, .8);
            max-width: 640px;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 24px;
        }

        .hero-stat-item {
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 14px;
            padding: 14px 22px;
            min-width: 140px;
            text-align: center;
        }

        .hero-stat-item strong {
            display: block;
            font-size: 26px;
            font-weight: 800;
            color: var(--warning);
            line-height: 1.3;
        }

        .hero-stat-item span {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 60px 0 50px;
            }

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

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

            .hero-stats {
                gap: 12px;
            }

            .hero-stat-item {
                min-width: calc(50% - 12px);
                padding: 12px 14px;
            }
        }

        /* ===== 通用板块标题 ===== */
        .section-title-wrap {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            background: linear-gradient(135deg, rgba(108, 92, 231, .1), rgba(255, 107, 107, .1));
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 12px;
        }

        .section-title-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .section-title-wrap p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section-title-wrap h2 {
                font-size: 26px;
            }

            .section-title-wrap p {
                font-size: 14px;
            }
        }

        /* ===== 活动分类卡片 ===== */
        .welfare-cat-section {
            padding: 80px 0 60px;
        }

        .cat-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .cat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

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

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

        .cat-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
            color: var(--white);
        }

        .cat-icon.purple {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
        }

        .cat-icon.coral {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
        }

        .cat-icon.green {
            background: linear-gradient(135deg, var(--secondary), #00D9A7);
        }

        .cat-icon.orange {
            background: linear-gradient(135deg, #FF9F43, #FFB871);
        }

        .cat-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

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

        .cat-card .cat-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .cat-card .cat-link i {
            transition: transform .3s ease;
        }

        .cat-card:hover .cat-link i {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .cat-card {
                padding: 20px;
            }

            .cat-icon {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }
        }

        /* ===== 热门活动卡片 ===== */
        .hot-section {
            padding: 60px 0;
            background: var(--white);
        }

        .activity-card {
            background: var(--light-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .activity-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

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

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

        .activity-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            z-index: 2;
            box-shadow: 0 4px 10px rgba(0, 0, 0, .15);
        }

        .activity-tag.blue {
            background: var(--primary);
        }

        .activity-tag.green {
            background: var(--secondary);
        }

        .activity-tag.orange {
            background: #FF9F43;
        }

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

        .activity-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .activity-body p {
            font-size: 14px;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 16px;
        }

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

        .activity-meta .deadline {
            color: var(--accent);
            font-weight: 500;
        }

        .btn-light-primary {
            background: rgba(108, 92, 231, .1);
            color: var(--primary);
            font-weight: 600;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .btn-light-primary:hover {
            background: var(--primary);
            color: var(--white);
        }

        @media (max-width: 768px) {
            .activity-body {
                padding: 16px;
            }

            .activity-body h3 {
                font-size: 16px;
            }
        }

        /* ===== 参与流程 ===== */
        .process-section {
            padding: 80px 0;
            background: var(--dark-bg);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .process-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(30, 27, 46, .92);
        }

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

        .process-section .section-title-wrap h2 {
            color: var(--white);
        }

        .process-section .section-title-wrap p {
            color: rgba(255, 255, 255, .7);
        }

        .process-section .section-tag {
            background: rgba(255, 255, 255, .15);
            color: var(--warning);
        }

        .step-card {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, .06);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-md);
            height: 100%;
            transition: var(--transition);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .25);
            transform: translateY(-4px);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 6px 18px rgba(108, 92, 231, .4);
        }

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

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

        /* ===== 数据指标 ===== */
        .data-section {
            padding: 70px 0;
            background: var(--white);
        }

        .data-card {
            background: linear-gradient(135deg, var(--light-bg), #F1F0FA);
            border-radius: var(--radius-md);
            padding: 30px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
        }

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

        .data-card .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .data-card .num span {
            font-size: 22px;
        }

        .data-card .label {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .data-card .num {
                font-size: 32px;
            }

            .data-card {
                padding: 20px 14px;
            }
        }

        /* ===== 高价值权益 ===== */
        .benefit-section {
            padding: 80px 0;
            background: var(--light-bg);
        }

        .benefit-row {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 24px;
            transition: var(--transition);
        }

        .benefit-row:hover {
            box-shadow: var(--shadow-md);
        }

        .benefit-img {
            overflow: hidden;
            height: 100%;
            min-height: 280px;
        }

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

        .benefit-row:hover .benefit-img img {
            transform: scale(1.03);
        }

        .benefit-content {
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .benefit-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .benefit-content p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .benefit-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .benefit-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-body);
        }

        .benefit-list li i {
            color: var(--secondary);
            width: 18px;
            text-align: center;
        }

        @media (max-width: 991px) {
            .benefit-content {
                padding: 24px;
            }

            .benefit-content h3 {
                font-size: 20px;
            }

            .benefit-img {
                min-height: 220px;
            }
        }

        @media (max-width: 768px) {
            .benefit-content {
                padding: 20px;
            }

            .benefit-content h3 {
                font-size: 18px;
            }
        }

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

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

        .faq-item {
            background: var(--light-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            padding: 0 22px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            padding: 20px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin: 0;
            user-select: none;
        }

        .faq-question i {
            color: var(--primary);
            transition: transform .3s ease;
            font-size: 14px;
            flex-shrink: 0;
        }

        .faq-item[aria-expanded="true"] .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 0 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px dashed var(--border-light);
            padding-top: 16px;
            display: none;
        }

        .faq-answer.show {
            display: block;
        }

        @media (max-width: 768px) {
            .faq-item {
                padding: 0 16px;
            }

            .faq-question {
                font-size: 15px;
            }
        }

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

        .cta-box {
            background: var(--dark-bg);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(108, 92, 231, .85), rgba(255, 107, 107, .7));
        }

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

        .cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .btn-white {
            background: var(--white);
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 36px;
            border-radius: 14px;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(0, 0, 0, .2);
            display: inline-block;
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
            color: var(--primary-dark);
        }

        .btn-outline-white {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, .5);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 28px;
            border-radius: 14px;
            transition: var(--transition);
            display: inline-block;
            margin-left: 12px;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, .15);
            border-color: var(--white);
            color: var(--white);
        }

        @media (max-width: 768px) {
            .cta-box {
                padding: 40px 20px;
            }

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

            .cta-box p {
                font-size: 14px;
            }

            .btn-white,
            .btn-outline-white {
                width: 100%;
                margin: 6px 0;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #151320;
            color: rgba(255, 255, 255, .7);
            padding: 64px 0 0;
            font-size: 14px;
        }

        .site-footer h5 {
            color: var(--white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
        }

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

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

        .site-footer ul a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: var(--transition);
        }

        .site-footer ul a:hover {
            color: var(--white);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            margin-top: 48px;
            text-align: center;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 44px 0 0;
            }
        }

        /* ===== 通用 ===== */
        .section-padding {
            padding: 80px 0;
        }

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

        .btn:focus,
        .btn:active:focus,
        .form-control:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(108, 92, 231, .25);
        }