/* roulang page: index */
:root {
  --brand-main: #2C5F8A;
  --brand-accent: #F07C2A;
  --brand-accent-dark: #D96A1F;
  --brand-bg: #F6F8FA;
  --brand-light: #E8F0F7;
  --text-body: #2A2A2E;
  --text-muted: #6B7280;
  --border-color: #E4E8EC;
  --success: #2E9E6B;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-sm: 6px;
  --shadow-card: 0 2px 8px rgba(44,95,138,.06), 0 8px 24px rgba(44,95,138,.08);
  --shadow-hover: 0 4px 16px rgba(44,95,138,.12), 0 16px 40px rgba(44,95,138,.14);
  --transition: .25s ease;
  --footer-bg: #1C2B3A;
  --footer-text: #A0B2C4;
}
*, *::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;
  background: var(--brand-bg);
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.7;
  padding-top: 68px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: var(--brand-main); transition: color var(--transition); }
a:hover { color: var(--brand-accent); }
ul { list-style: none; }
.container { max-width: 1200px; padding-left: 16px; padding-right: 16px; }
section { position: relative; }
.btn { border-radius: var(--radius-btn); padding: 10px 24px; font-weight: 600; font-size: 15px; border: 1px solid transparent; transition: all var(--transition); font-family: inherit; }
.btn:focus, .btn:focus-visible { outline: 2px solid var(--brand-light); outline-offset: 2px; box-shadow: 0 0 0 2px var(--brand-main); }
.btn-accent { background: var(--brand-accent); color: #fff; border-color: var(--brand-accent); box-shadow: 0 2px 6px rgba(240,124,42,.25); }
.btn-accent:hover { background: var(--brand-accent-dark); border-color: var(--brand-accent-dark); color: #fff; box-shadow: 0 4px 12px rgba(240,124,42,.35); transform: translateY(-1px); }
.btn-outline-light-blue { background: #fff; color: var(--brand-main); border-color: var(--brand-main); }
.btn-outline-light-blue:hover { background: var(--brand-light); color: var(--brand-main); }
.btn-white-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-white-outline:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.btn-lg { padding: 14px 34px; font-size: 16px; border-radius: 8px; }
.btn-nav { padding: 8px 22px; font-size: 14px; border-radius: var(--radius-sm); }

/* ===== Header / Nav ===== */
.navbar {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  height: 68px;
  padding: 0;
  box-shadow: 0 1px 4px rgba(44,95,138,.04);
}
.navbar .container { height: 100%; }
.navbar-brand { display: flex; align-items: center; gap: 8px; padding: 0; }
.brand-name { font-size: 22px; font-weight: 700; color: var(--brand-main); letter-spacing: 1px; }
.brand-badge { background: var(--brand-light); color: var(--brand-main); font-size: 12px; padding: 2px 10px; border-radius: 12px; font-weight: 600; letter-spacing: .5px; }
.navbar-nav { gap: 6px; }
.navbar-nav .nav-link {
  font-size: 15px; color: var(--brand-main); font-weight: 500; padding: 8px 16px;
  border-radius: var(--radius-sm); position: relative; transition: all var(--transition);
}
.navbar-nav .nav-link::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px;
  background: var(--brand-main); transform: scaleX(0); transform-origin: left; transition: transform .25s ease;
}
.navbar-nav .nav-link:hover { background: var(--brand-light); color: var(--brand-main); }
.navbar-nav .nav-link:hover::after { transform: scaleX(1); }
.navbar-nav .nav-link.active { background: var(--brand-light); color: var(--brand-main); font-weight: 600; }
.navbar-nav .nav-link.active::after { transform: scaleX(1); }
.navbar-toggler { border: 1px solid var(--border-color); padding: 6px 10px; border-radius: 8px; background: #fff; }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(44,95,138,.15); }
.toggler-bar { display: block; width: 22px; height: 2px; background: var(--brand-main); margin: 4px 0; border-radius: 2px; }

/* ===== Countdown Bar ===== */
.countdown-bar {
  background: var(--brand-accent);
  color: #fff;
  padding: 10px 16px;
  position: relative;
  z-index: 10;
}
.countdown-wrapper { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px 20px; }
.countdown-label { font-weight: 600; font-size: 15px; letter-spacing: .5px; }
.countdown-timer { display: flex; align-items: center; gap: 6px; font-variant-numeric: tabular-nums; }
.countdown-number {
  display: inline-block; background: rgba(255,255,255,.18); border-bottom: 2px solid var(--brand-accent-dark);
  border-radius: 6px; padding: 2px 8px; font-size: 16px; font-weight: 700; min-width: 36px; text-align: center;
}
.countdown-colon { font-size: 16px; font-weight: 700; animation: blink 1s step-start infinite; }
@keyframes blink { 50% { opacity: .4; } }
.countdown-link { color: #fff; text-decoration: underline; font-size: 14px; font-weight: 500; }
.countdown-link:hover { color: rgba(255,255,255,.8); }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, #E8F0F7 0%, #FFFFFF 60%, #F6F8FA 100%);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%;
  background: rgba(44,95,138,.08); top: -160px; right: -120px;
}
.hero::after {
  content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%;
  background: rgba(44,95,138,.05); bottom: -80px; left: -60px;
}
.hero .container { position: relative; z-index: 2; }
.hero h1 {
  font-size: 40px; font-weight: 700; line-height: 1.3; color: var(--text-body);
  margin-bottom: 20px; letter-spacing: .5px;
}
.hero h1 .hero-brand { color: var(--brand-main); }
.hero-sub {
  font-size: 18px; color: var(--text-muted); line-height: 1.8; margin-bottom: 32px; max-width: 480px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-img {
  border-radius: 16px; box-shadow: var(--shadow-hover); width: 100%; object-fit: cover;
  background: var(--brand-light);
}

/* ===== Section Head ===== */
.section-head { margin-bottom: 48px; }
.section-title {
  font-size: 30px; font-weight: 700; color: var(--text-body); position: relative;
  padding-left: 16px; line-height: 1.4; margin-bottom: 8px;
}
.section-title::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px;
  background: var(--brand-accent); border-radius: 4px;
}
.section-sub { font-size: 14px; color: var(--text-muted); margin-top: 8px; }
.section-head-center .section-title { text-align: center; padding-left: 0; }
.section-head-center .section-title::before { display: none; }
.section-head-center .section-sub { text-align: center; }

/* ===== Features ===== */
.features { padding: 72px 0; background: var(--brand-bg); }
.feature-card {
  background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-card);
  padding: 32px 28px; height: 100%; text-align: center; transition: all var(--transition);
  border: 1px solid rgba(228,232,236,.5);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 12px; background: var(--brand-light);
  display: inline-flex; align-items: center; justify-content: center; margin-bottom: 20px;
  color: var(--brand-main); font-size: 24px;
}
.feature-card h3 { font-size: 18px; font-weight: 600; color: var(--text-body); margin-bottom: 12px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.8; margin: 0; }

/* ===== Gallery ===== */
.gallery { padding: 72px 0; background: #fff; }
.gallery-item { position: relative; border-radius: var(--radius-card); overflow: hidden; margin-bottom: 24px; box-shadow: var(--shadow-card); }
.gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .35s ease; }
.gallery-overlay {
  position: absolute; inset: 0; background: rgba(44,95,138,.55); display: flex;
  align-items: center; justify-content: center; opacity: 0; transition: opacity .3s ease;
}
.gallery-overlay i { color: #fff; font-size: 28px; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-caption { text-align: center; font-size: 14px; color: var(--text-muted); margin-top: 4px; }

/* ===== CTA ===== */
.cta-section { background: var(--brand-main); padding: 64px 0; }
.cta-section h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-section .cta-sub { font-size: 16px; color: rgba(255,255,255,.7); margin-bottom: 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== FAQ ===== */
.faq-section { padding: 72px 0; background: var(--brand-bg); }
.faq-card {
  background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-card);
  padding: 28px; margin-bottom: 24px; height: calc(100% - 24px);
  border-left: 3px solid var(--brand-accent);
}
.faq-q { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 10px; }
.faq-q-badge {
  width: 28px; height: 28px; border-radius: 50%; background: var(--brand-accent); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; flex-shrink: 0;
}
.faq-q-text { font-size: 16px; font-weight: 600; color: var(--text-body); line-height: 1.5; }
.faq-a { display: flex; gap: 12px; align-items: flex-start; }
.faq-a-badge {
  width: 28px; height: 28px; border-radius: 50%; background: var(--brand-main); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; flex-shrink: 0;
}
.faq-a-text { font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ===== News ===== */
.news-section { padding: 72px 0; background: #fff; }
.news-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 36px; }
.news-more { font-size: 14px; color: var(--brand-main); font-weight: 500; }
.news-more:hover { color: var(--brand-accent); }
.news-card {
  background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-card);
  overflow: hidden; height: 100%; display: flex; flex-direction: column;
  border: 1px solid rgba(228,232,236,.4); transition: all var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-thumb { position: relative; overflow: hidden; }
.news-thumb img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform .35s ease; }
.news-card:hover .news-thumb img { transform: scale(1.04); }
.news-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.news-tag {
  display: inline-block; background: var(--brand-accent); color: #fff; font-size: 12px;
  padding: 2px 12px; border-radius: 12px; font-weight: 600; margin-bottom: 12px; align-self: flex-start;
  letter-spacing: .5px;
}
.news-title {
  font-size: 16px; font-weight: 600; color: var(--text-body); line-height: 1.5;
  margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 48px;
}
.news-excerpt {
  font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 16px;
}
.news-meta { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border-color); padding-top: 14px; }
.news-date { font-size: 13px; color: var(--text-muted); }
.news-link { font-size: 13px; font-weight: 600; color: var(--brand-main); }
.news-link:hover { color: var(--brand-accent); }

/* ===== Empty State ===== */
.empty-state {
  border: 2px dashed var(--border-color); border-radius: var(--radius-card); padding: 60px 20px;
  text-align: center; color: var(--text-muted); font-size: 15px; background: #FAFBFC;
}
.empty-state i { font-size: 36px; color: var(--border-color); display: block; margin-bottom: 12px; }

/* ===== Footer ===== */
.footer { background: var(--footer-bg); color: var(--footer-text); padding: 56px 0 0; }
.footer-logo { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.footer-brand-name { font-size: 22px; font-weight: 700; color: #fff; }
.footer-brand-badge { background: rgba(255,255,255,.1); color: #fff; font-size: 12px; padding: 2px 10px; border-radius: 12px; }
.footer-desc { font-size: 14px; line-height: 1.8; color: var(--footer-text); margin-bottom: 20px; max-width: 260px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.08);
  display: inline-flex; align-items: center; justify-content: center; color: var(--footer-text); font-size: 14px;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--brand-accent); color: #fff; }
.footer h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--footer-text); transition: color var(--transition); }
.footer-links a:hover { color: #fff; }
.footer-contact p { font-size: 14px; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.footer-contact i { color: var(--brand-accent); width: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.4); margin-top: 40px; }

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .container { max-width: 1140px; }
}
@media (max-width: 991.98px) {
  body { padding-top: 68px; }
  .navbar-collapse {
    background: #fff; border-radius: 12px; padding: 16px; margin-top: 12px;
    box-shadow: 0 8px 30px rgba(44,95,138,.12); border: 1px solid var(--border-color);
  }
  .navbar-nav .nav-link { padding: 10px 12px; }
  .navbar-nav .nav-link::after { display: none; }
  .navbar-nav .nav-link.active { background: var(--brand-light); border-left: 3px solid var(--brand-accent); }
  .btn-nav { display: inline-block; margin-top: 12px; width: 100%; text-align: center; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .features, .gallery, .faq-section, .news-section { padding: 56px 0; }
  .cta-section { padding: 48px 0; }
}
@media (max-width: 767.98px) {
  .hero { padding: 48px 0 56px; text-align: center; }
  .hero h1 { font-size: 28px; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-img { margin-top: 32px; }
  .section-title { font-size: 24px; }
  .countdown-label { font-size: 13px; }
  .countdown-number { font-size: 13px; min-width: 28px; padding: 2px 6px; }
  .countdown-colon { font-size: 13px; }
  .countdown-link { font-size: 13px; }
  .cta-section h2 { font-size: 24px; }
  .footer { padding-top: 40px; }
  .footer h4 { margin-top: 24px; }
  .news-head { flex-direction: column; align-items: flex-start; gap: 12px; }
}
@media (max-width: 575.98px) {
  .hero h1 { font-size: 26px; }
  .feature-card { padding: 24px 20px; }
  .faq-card { padding: 20px; }
  .btn-lg { padding: 12px 24px; font-size: 15px; }
  .countdown-wrapper { gap: 8px 12px; }
}

/* roulang page: article */
:root {
  --bs-primary: #2C5F8A;
  --brand-main: #2C5F8A;
  --brand-accent: #F07C2A;
  --brand-bg: #F6F8FA;
  --text-body: #2A2A2E;
  --text-muted: #6B7280;
  --border-color: #E4E8EC;
  --radius-card: 12px;
  --shadow-card: 0 2px 8px rgba(44,95,138,0.06), 0 8px 24px rgba(44,95,138,0.08);
  --shadow-card-hover: 0 4px 16px rgba(44,95,138,0.12), 0 16px 40px rgba(44,95,138,0.14);
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  background: var(--brand-bg);
  color: var(--text-body);
  line-height: 1.6;
  font-size: 16px;
  padding-top: 68px;
}
a {
  text-decoration: none;
}
img {
  max-width: 100%;
  height: auto;
}
.container {
  max-width: 1200px;
}
body.inner-page .btn-nav {
  display: none;
}

/* ============ 按钮 ============ */
.btn {
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  padding: 10px 24px;
  transition: all .25s ease;
}
.btn-accent {
  background: var(--brand-accent);
  color: #fff;
  border: none;
  padding: 12px 28px;
  font-weight: 600;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(240,124,42,0.25);
}
.btn-accent:hover,
.btn-accent:focus {
  background: #D96A1F;
  color: #fff;
  box-shadow: 0 4px 12px rgba(240,124,42,0.35);
  transform: translateY(-2px);
}
.btn-accent:focus-visible {
  outline: 2px solid #E8F0F7;
  outline-offset: 2px;
}
.btn-outline-primary {
  border: 1px solid var(--brand-main);
  color: var(--brand-main);
  background: transparent;
  border-radius: 8px;
  padding: 12px 28px;
  font-weight: 500;
}
.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: #E8F0F7;
  color: #1a3d5a;
  border-color: #1a3d5a;
  transform: translateY(-2px);
}
.btn-outline-primary:focus-visible {
  outline: 2px solid #E8F0F7;
  outline-offset: 2px;
}
.btn-nav {
  padding: 8px 20px;
  font-size: 14px;
  border-radius: 6px;
}

/* ============ 导航 ============ */
.navbar {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  min-height: 68px;
  padding: 0;
  box-shadow: 0 1px 8px rgba(44,95,138,0.04);
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
}
.brand-name {
  font-weight: 600;
  font-size: 22px;
  color: var(--brand-main);
  letter-spacing: 1px;
}
.brand-badge {
  background: #E8F0F7;
  color: var(--brand-main);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 12px;
  font-weight: 500;
  line-height: 1.4;
}
.navbar-nav .nav-link {
  color: var(--brand-main);
  font-size: 15px;
  padding: 22px 16px;
  position: relative;
  transition: color .25s ease;
  font-weight: 500;
}
.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--brand-main);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: #1a3d5a;
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  transform: scaleX(1);
}
.navbar-nav .nav-link.active {
  color: #1a3d5a;
}
.navbar-toggler {
  border: none;
  padding: 6px;
  width: 42px;
  height: 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  align-items: center;
  border-radius: 8px;
}
.navbar-toggler:focus {
  box-shadow: none;
  outline: 2px solid #E8F0F7;
}
.toggler-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--brand-main);
  border-radius: 2px;
  transition: all .3s;
}

/* ============ 文章 Hero ============ */
.article-hero {
  position: relative;
  padding: 52px 0 44px;
  overflow: hidden;
  background: linear-gradient(135deg, #E8F0F7 0%, #FFFFFF 60%, #F6F8FA 100%);
  border-bottom: 1px solid #eef2f5;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.18;
  z-index: 0;
}
.article-hero .container {
  position: relative;
  z-index: 1;
}
.hero-decor {
  position: absolute;
  border-radius: 50%;
  background: rgba(44,95,138,0.07);
  z-index: 0;
  pointer-events: none;
}
.hero-decor-1 {
  width: 220px;
  height: 220px;
  top: -70px;
  right: 8%;
}
.hero-decor-2 {
  width: 140px;
  height: 140px;
  bottom: -40px;
  left: 4%;
}

/* 面包屑 */
.breadcrumb-custom {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}
.breadcrumb-custom a {
  color: var(--text-muted);
  transition: color .2s;
}
.breadcrumb-custom a:hover {
  color: var(--brand-main);
}
.breadcrumb-custom .sep {
  margin: 0 6px;
  color: #B0B8C0;
}
.breadcrumb-custom .current {
  color: var(--text-body);
  font-weight: 500;
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 文章标题 */
.article-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-body);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

/* 元信息 */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: var(--text-muted);
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-meta .meta-item i {
  color: var(--brand-main);
  font-size: 15px;
}

/* ============ 正文区 ============ */
.article-main {
  padding: 48px 0 64px;
}
.article-body {
  max-width: 780px;
  margin: 0 auto;
}
.article-content {
  background: #fff;
  border-radius: 16px;
  padding: 44px 52px;
  box-shadow: var(--shadow-card);
}
.article-content p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 24px;
  color: #34363B;
}
.article-content h2,
.article-content h3 {
  color: var(--brand-main);
  border-left: 4px solid var(--brand-accent);
  padding-left: 14px;
  margin: 36px 0 16px;
  font-weight: 600;
}
.article-content h2 {
  font-size: 24px;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 20px;
  line-height: 1.4;
}
.article-content strong {
  font-weight: 700;
  color: var(--text-body);
}
.article-content em {
  font-style: italic;
}
.article-content img {
  border-radius: 12px;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 30px auto;
}
.article-content blockquote {
  border-left: 4px solid var(--brand-main);
  background: #E8F0F7;
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  color: #4A5568;
  font-size: 15px;
}
.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding-left: 0;
}
.article-content ul {
  list-style: none;
}
.article-content ul li {
  padding-left: 24px;
  position: relative;
  margin-bottom: 10px;
  line-height: 1.75;
}
.article-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-main);
}
.article-content ol li {
  margin-bottom: 10px;
  line-height: 1.75;
  padding-left: 4px;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border-color);
  padding: 12px;
}
.article-content th {
  background: #E8F0F7;
  color: var(--brand-main);
  font-weight: 600;
}
.article-content pre {
  background: #1C2B3A;
  color: #e5e7eb;
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.6;
  margin: 24px 0;
}
.article-content a {
  color: var(--brand-main);
  text-decoration: underline;
  transition: color .2s;
}
.article-content a:hover {
  color: #1a3d5a;
}

/* 文章结束标记 */
.article-end-mark {
  text-align: center;
  margin: 40px 0 24px;
}
.article-end-mark span {
  display: inline-block;
  width: 48px;
  height: 4px;
  border-radius: 4px;
  background: var(--brand-accent);
}

/* ============ 正文内 CTA ============ */
.cta-box {
  background: linear-gradient(135deg, #E8F0F7 0%, #FFFFFF 100%);
  border: 1px solid #eef2f5;
  border-radius: 16px;
  padding: 36px 40px;
  margin: 20px 0 32px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.cta-box h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--brand-main);
  margin-bottom: 10px;
}
.cta-box p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 22px;
  line-height: 1.7;
}
.cta-box .btn {
  margin: 0 6px;
}

/* ============ 上一篇 / 下一篇 ============ */
.article-pagination {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 8px;
}
.article-pagination .btn {
  flex: 1;
  max-width: 240px;
  background: #fff;
  border: 1px solid var(--border-color);
  color: var(--brand-main);
  border-radius: 10px;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  transition: all .25s ease;
  box-shadow: 0 1px 4px rgba(44,95,138,0.04);
}
.article-pagination .btn:hover {
  background: #E8F0F7;
  border-color: var(--brand-main);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.article-pagination .btn i {
  font-size: 12px;
}
.article-pagination .btn-prev i {
  margin-right: 6px;
}
.article-pagination .btn-next i {
  margin-left: 6px;
}

/* ============ 内容未找到 ============ */
.article-not-found {
  text-align: center;
  padding: 80px 24px;
  max-width: 600px;
  margin: 0 auto;
  border: 2px dashed var(--border-color);
  border-radius: 16px;
  background: #fff;
}
.not-found-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #E8F0F7;
  border-radius: 50%;
  font-size: 32px;
  color: var(--brand-main);
}
.article-not-found h2 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 12px;
}
.article-not-found p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 24px;
}

/* ============ 相关推荐 ============ */
.related-section {
  padding: 56px 0 72px;
  background: #fff;
  border-top: 1px solid var(--border-color);
}
.related-header {
  margin-bottom: 32px;
}
.related-header h2 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-body);
  position: relative;
  padding-left: 16px;
}
.related-header h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 4px;
  background: var(--brand-accent);
}
.related-card {
  border: 1px solid #eef2f5;
  border-radius: 12px;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
  height: 100%;
  background: #fff;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.card-img-wrap {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #E8F0F7;
}
.related-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
  border-radius: 0;
}
.related-card:hover .card-img-wrap img {
  transform: scale(1.05);
}
.related-card .card-body {
  padding: 16px 20px 20px;
}
.related-card .card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-body);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .card-title a {
  color: var(--text-body);
  transition: color .2s;
}
.related-card .card-title a:hover {
  color: var(--brand-main);
}
.related-card .card-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.related-card .card-meta .read-more {
  color: var(--brand-main);
  font-weight: 500;
}

/* ============ 页脚 ============ */
.footer {
  background: #1C2B3A;
  color: #A0B2C4;
  padding: 52px 0 0;
}
.footer .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.footer-brand-name {
  font-weight: 600;
  font-size: 24px;
  color: #fff;
}
.footer-brand-badge {
  background: rgba(255,255,255,0.15);
  color: #A0B2C4;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #8FA3B5;
  margin-bottom: 16px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #A0B2C4;
  font-size: 14px;
  transition: all .25s ease;
}
.footer-social a:hover {
  color: #fff;
  background: var(--brand-accent);
  transform: translateY(-2px);
}
.footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: #A0B2C4;
  font-size: 14px;
  transition: all .2s;
  display: inline-block;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #A0B2C4;
}
.footer-contact p i {
  color: var(--brand-accent);
  width: 16px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 40px;
  padding: 18px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(160,178,196,0.8);
}

/* ============ 响应式 ============ */
@media (max-width: 991.98px) {
  body {
    padding-top: 60px;
  }
  .navbar {
    min-height: 60px;
  }
  .navbar-collapse {
    background: #fff;
    border-top: 1px solid var(--border-color);
    padding: 12px 0 16px;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 12px 24px rgba(44,95,138,0.08);
  }
  .navbar-nav .nav-link {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 16px;
  }
  .navbar-nav .nav-link::after {
    display: none;
  }
  .navbar-nav .nav-link:hover,
  .navbar-nav .nav-link:focus,
  .navbar-nav .nav-link.active {
    background: #E8F0F7;
    color: #1a3d5a;
  }
  .navbar-nav .nav-link.active {
    border-left: 3px solid var(--brand-accent);
    font-weight: 600;
  }
  .navbar-nav {
    gap: 4px;
  }
  .btn-nav {
    margin-top: 12px;
    margin-left: 16px !important;
    display: none;
  }
  .article-title {
    font-size: 26px;
  }
  .article-content {
    padding: 32px 24px;
    border-radius: 12px;
  }
  .cta-box {
    padding: 28px 24px;
  }
  .article-pagination {
    flex-direction: column;
  }
  .article-pagination .btn {
    max-width: 100%;
  }
  .footer .row > div {
    margin-bottom: 24px;
  }
}

@media (max-width: 767px) {
  .article-hero {
    padding: 36px 0 28px;
  }
  .article-title {
    font-size: 24px;
    margin-bottom: 14px;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  .article-main {
    padding: 28px 0 48px;
  }
  .article-content {
    padding: 24px 18px;
  }
  .article-content p {
    font-size: 15px;
    line-height: 1.75;
  }
  .article-content h2 {
    font-size: 21px;
  }
  .article-content h3 {
    font-size: 18px;
  }
  .cta-box {
    padding: 24px 16px;
    margin: 16px 0 24px;
  }
  .cta-box h3 {
    font-size: 19px;
  }
  .cta-box .btn {
    display: block;
    width: 100%;
    margin: 10px 0 0;
  }
  .related-section {
    padding: 40px 0 48px;
  }
  .related-header h2 {
    font-size: 22px;
  }
  .related-card .card-title {
    font-size: 15px;
  }
  .breadcrumb-custom .current {
    max-width: 180px;
  }
  .footer {
    padding-top: 40px;
  }
}

@media (max-width: 520px) {
  .article-title {
    font-size: 22px;
  }
  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .article-content {
    padding: 20px 16px;
  }
  .article-content img {
    margin: 20px auto;
    border-radius: 8px;
  }
  .article-not-found {
    padding: 56px 20px;
  }
  .article-not-found h2 {
    font-size: 22px;
  }
  .article-end-mark {
    margin: 30px 0 18px;
  }
}

/* roulang page: category1 */
:root {
            --brand-main: #2C5F8A;
            --brand-light: #E8F0F7;
            --brand-accent: #F07C2A;
            --brand-accent-dark: #D96A1F;
            --brand-bg: #F6F8FA;
            --text-body: #2A2A2E;
            --text-muted: #6B7280;
            --border-color: #E4E8EC;
            --radius-card: 12px;
            --shadow-card: 0 2px 8px rgba(44, 95, 138, 0.06), 0 8px 24px rgba(44, 95, 138, 0.08);
            --shadow-hover: 0 4px 16px rgba(44, 95, 138, 0.12), 0 16px 40px rgba(44, 95, 138, 0.14);
        }

        * {
            box-sizing: border-box;
        }

        html,
        body {
            margin: 0;
            padding: 0;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--brand-bg);
            padding-top: 68px;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-body);
            font-weight: 600;
            line-height: 1.3;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== 导航 ===== */
        .navbar {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            height: 68px;
            padding: 0;
            box-shadow: 0 2px 12px rgba(44, 95, 138, 0.05);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
        }

        .brand-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand-main);
            letter-spacing: 1px;
        }

        .brand-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--brand-main);
            background: var(--brand-light);
            border-radius: 12px;
            padding: 3px 12px;
            line-height: 1.6;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--brand-main);
            padding: 0 16px !important;
            line-height: 68px;
            position: relative;
        }

        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            background: transparent;
            transition: background .25s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-body);
        }

        .navbar-nav .nav-link:hover::after {
            background: var(--brand-accent);
        }

        .navbar-nav .nav-link.active {
            color: var(--text-body);
        }

        .navbar-nav .nav-link.active::after {
            background: var(--brand-main);
        }

        .btn-accent {
            background: var(--brand-accent);
            border: none;
            color: #fff;
            border-radius: 8px;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
            box-shadow: 0 2px 6px rgba(240, 124, 42, 0.25);
        }

        .btn-accent:hover {
            background: var(--brand-accent-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(240, 124, 42, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline-primary {
            border: 1px solid var(--brand-main);
            color: var(--brand-main);
            background: #fff;
            border-radius: 8px;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
        }

        .btn-outline-primary:hover {
            background: var(--brand-light);
            border-color: var(--brand-main);
            color: var(--brand-main);
        }

        .btn:focus,
        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px var(--brand-light), 0 0 0 4px var(--brand-main);
        }

        .btn-accent:focus,
        .btn-accent:focus-visible {
            box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--brand-accent);
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
        }

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

        .toggler-bar {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--brand-main);
            margin: 5px 0;
            border-radius: 2px;
            transition: all .25s ease;
        }

        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: #fff;
                border-top: 1px solid var(--border-color);
                margin: 0 -16px;
                padding: 8px 16px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            }

            .navbar-nav .nav-link {
                line-height: 48px;
                padding: 0 8px !important;
                border-left: 3px solid transparent;
            }

            .navbar-nav .nav-link.active {
                border-left-color: var(--brand-accent);
            }

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

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(135deg, var(--brand-light) 0%, #ffffff 60%, var(--brand-bg) 100%);
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(44, 95, 138, 0.06);
            top: -120px;
            right: -80px;
        }

        .hero-section::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(240, 124, 42, 0.08);
            bottom: -60px;
            left: 30%;
        }

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

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 540px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hero-img {
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
            height: 360px;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 28px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-img {
                height: 240px;
                margin-top: 24px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            width: 4px;
            height: 24px;
            border-radius: 2px;
            background: var(--brand-accent);
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 40px;
        }

        .content-section {
            padding-top: 48px;
        }

        /* ===== 卡片 ===== */
        .card {
            border: none;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all .25s ease;
            overflow: hidden;
            background: #fff;
        }

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

        .feature-card {
            padding: 32px 24px;
            height: 100%;
            text-align: center;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--brand-main);
            font-size: 24px;
        }

        .feature-card .card-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
        }

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

        /* ===== 分类介绍 ===== */
        .intro-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
            margin-bottom: 48px;
        }

        .intro-text {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.9;
            margin: 20px 0 0;
        }

        .image-block {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .image-block img {
            width: 100%;
            display: block;
            object-fit: cover;
            height: 260px;
        }

        .image-block .overlay {
            position: absolute;
            inset: 0;
            background: rgba(44, 95, 138, 0.35);
            opacity: 0;
            transition: opacity .25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 28px;
        }

        .image-block:hover .overlay {
            opacity: 1;
        }

        /* ===== 场景 ===== */
        .scene-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            height: 100%;
            transition: all .25s ease;
        }

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

        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-main);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .scene-card h4 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== 流程 ===== */
        .process-wrap {
            background: var(--brand-light);
            border-radius: var(--radius-card);
            padding: 32px;
        }

        .step-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .step-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .step-item:first-child {
            padding-top: 0;
        }

        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-main);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-size: 18px;
            margin-bottom: 6px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-card {
            padding: 28px;
            height: 100%;
        }

        .faq-q {
            display: flex;
            gap: 10px;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
            align-items: flex-start;
        }

        .faq-a {
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            align-items: flex-start;
        }

        .q-badge,
        .a-badge {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 600;
            flex-shrink: 0;
            line-height: 1;
        }

        .q-badge {
            background: var(--brand-accent);
            color: #fff;
        }

        .a-badge {
            background: var(--brand-main);
            color: #fff;
        }

        /* ===== CTA ===== */
        .cta-card {
            background: linear-gradient(135deg, var(--brand-main) 0%, #1F4568 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            margin-bottom: 48px;
        }

        .cta-card h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-card p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .cta-card .btn-accent {
            padding: 14px 36px;
            font-size: 16px;
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            position: sticky;
            top: 84px;
        }

        .side-widget {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            margin-bottom: 24px;
        }

        .side-widget h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 16px;
            padding-left: 12px;
            border-left: 3px solid var(--brand-accent);
            line-height: 1.4;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-list .tag {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--brand-main);
            border-radius: 20px;
            font-size: 13px;
            color: var(--brand-main);
            transition: all .25s ease;
            background: #fff;
        }

        .tag-list .tag:hover {
            background: var(--brand-light);
            color: var(--text-body);
            border-color: var(--brand-light);
        }

        .rel-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            align-items: center;
        }

        .rel-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .rel-item:first-child {
            padding-top: 0;
        }

        .rel-thumb {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .rel-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .rel-info {
            min-width: 0;
        }

        .rel-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            line-height: 1.4;
            display: block;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rel-title:hover {
            color: var(--brand-main);
        }

        .rel-time {
            font-size: 12px;
            color: var(--text-muted);
        }

        .side-contact p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .side-contact .btn {
            display: block;
            width: 100%;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #1C2B3A;
            color: #A0B2C4;
            padding: 60px 0 0;
            margin-top: 0;
        }

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

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

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

        .footer-links a {
            color: #A0B2C4;
            font-size: 14px;
            transition: color .25s ease;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-brand-name {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand-badge {
            font-size: 12px;
            color: #fff;
            background: var(--brand-main);
            border-radius: 12px;
            padding: 3px 12px;
            margin-left: 8px;
            display: inline-block;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin: 16px 0 20px;
            color: #A0B2C4;
        }

        .footer-social a {
            display: inline-flex;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #A0B2C4;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
            font-size: 15px;
            transition: all .25s ease;
        }

        .footer-social a:hover {
            background: var(--brand-accent);
            color: #fff;
        }

        .footer-contact p {
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }

        .footer-contact i {
            width: 20px;
            color: var(--brand-accent);
            margin-right: 8px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            margin-top: 48px;
        }

        .footer-bottom .container {
            text-align: center;
            font-size: 13px;
            color: #7A8FA3;
        }

        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .content-section {
                padding-top: 32px;
            }

            .footer {
                padding: 48px 0 0;
            }

            .cta-card {
                padding: 32px 24px;
            }

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

/* roulang page: category2 */
:root {
      --brand-main: #2C5F8A;
      --brand-light: #E8F0F7;
      --brand-accent: #F07C2A;
      --brand-accent-dark: #D96A1F;
      --brand-bg: #F6F8FA;
      --text-body: #2A2A2E;
      --text-muted: #6B7280;
      --border-color: #E4E8EC;
      --radius-card: 12px;
      --radius-btn: 8px;
      --shadow-card: 0 2px 8px rgba(44, 95, 138, 0.06), 0 8px 24px rgba(44, 95, 138, 0.08);
      --shadow-hover: 0 4px 16px rgba(44, 95, 138, 0.12), 0 16px 40px rgba(44, 95, 138, 0.14);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      background: var(--brand-bg);
      color: var(--text-body);
      line-height: 1.7;
      font-size: 16px;
      padding-top: 68px;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color .2s ease;
    }

    a:hover {
      color: inherit;
    }

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

    .container {
      max-width: 1200px;
    }

    /* ===== 导航 ===== */
    .navbar {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      min-height: 68px;
      padding: 0;
      box-shadow: 0 1px 4px rgba(44, 95, 138, 0.04);
      z-index: 1030;
    }

    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      padding: 0;
    }

    .brand-name {
      font-size: 22px;
      font-weight: 600;
      color: var(--brand-main);
      letter-spacing: 1px;
    }

    .brand-badge {
      font-size: 12px;
      color: #ffffff;
      background: var(--brand-main);
      border-radius: 12px;
      padding: 2px 10px;
      font-weight: 500;
    }

    .navbar-nav .nav-item {
      display: flex;
      align-items: center;
    }

    .navbar-nav .nav-link {
      padding: 0 16px;
      line-height: 68px;
      font-size: 15px;
      color: var(--brand-main);
      position: relative;
      white-space: nowrap;
    }

    .navbar-nav .nav-link::after {
      content: "";
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 0;
      height: 2px;
      background: var(--brand-accent);
      transform: scaleX(0);
      transition: transform .25s ease;
      transform-origin: left;
    }

    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: #1f4668;
    }

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

    .btn-nav {
      padding: 8px 22px;
      font-size: 14px;
      border-radius: 8px;
      white-space: nowrap;
    }

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

    .navbar-toggler:focus {
      border-color: transparent;
      box-shadow: none;
    }

    .toggler-bar {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--brand-main);
      margin: 5px 0;
      border-radius: 2px;
      transition: transform .25s ease;
    }

    .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) {
      opacity: 0;
    }

    .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    @media (max-width: 991px) {
      .navbar-collapse {
        background: #ffffff;
        border-top: 1px solid var(--border-color);
        padding: 12px 16px 20px;
        box-shadow: 0 12px 24px rgba(44, 95, 138, 0.08);
      }

      .navbar-nav .nav-item {
        display: block;
      }

      .navbar-nav .nav-link {
        line-height: 48px;
        font-size: 16px;
        border-left: 3px solid transparent;
        padding: 0 12px;
      }

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

      .navbar-nav .nav-link.active {
        border-left-color: var(--brand-accent);
        background: var(--brand-light);
        border-radius: 6px;
      }

      .btn-nav {
        margin-top: 12px;
        display: inline-block;
      }
    }

    /* ===== 按钮 ===== */
    .btn {
      font-weight: 600;
      border-radius: var(--radius-btn);
      transition: all .25s ease;
      font-size: 15px;
    }

    .btn-accent {
      background: var(--brand-accent);
      color: #ffffff;
      border: none;
      padding: 12px 28px;
      box-shadow: 0 2px 6px rgba(240, 124, 42, 0.25);
    }

    .btn-accent:hover {
      background: var(--brand-accent-dark);
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(240, 124, 42, 0.35);
    }

    .btn-outline-main {
      background: #ffffff;
      color: var(--brand-main);
      border: 1px solid var(--brand-main);
      padding: 12px 28px;
    }

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

    .btn-outline-light {
      background: transparent;
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.85);
      padding: 12px 28px;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #ffffff;
      border-color: #ffffff;
      transform: translateY(-2px);
    }

    .btn:focus-visible {
      outline: 2px solid var(--brand-light);
      outline-offset: 2px;
      box-shadow: 0 0 0 2px var(--brand-main);
    }

    /* ===== 分类 Hero ===== */
    .category-hero {
      position: relative;
      padding: 96px 0 76px;
      background: linear-gradient(135deg, rgba(44, 95, 138, 0.94) 0%, rgba(44, 95, 138, 0.88) 60%, rgba(44, 95, 138, 0.82) 100%), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
      color: #ffffff;
      overflow: hidden;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      top: -80px;
      right: 8%;
      pointer-events: none;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.05);
      bottom: -40px;
      left: 5%;
      pointer-events: none;
    }

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

    .breadcrumb-custom {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 18px;
      letter-spacing: 0.3px;
    }

    .breadcrumb-custom i {
      margin: 0 6px;
      font-size: 12px;
    }

    .breadcrumb-custom a {
      color: rgba(255, 255, 255, 0.9);
    }

    .breadcrumb-custom a:hover {
      color: #ffffff;
    }

    .category-hero h1 {
      font-size: 40px;
      font-weight: 600;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .category-hero .lead {
      font-size: 18px;
      color: rgba(255, 255, 255, 0.92);
      max-width: 660px;
      margin-bottom: 28px;
      line-height: 1.8;
    }

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

    @media (max-width: 767px) {
      .category-hero {
        padding: 64px 0 52px;
      }

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

      .category-hero .lead {
        font-size: 16px;
      }
    }

    /* ===== 板块标题 ===== */
    .section-head {
      margin-bottom: 36px;
    }

    .section-head h2 {
      font-size: 30px;
      font-weight: 600;
      line-height: 1.3;
      border-left: 4px solid var(--brand-accent);
      padding-left: 14px;
      margin-bottom: 8px;
    }

    .section-head .sub {
      font-size: 14px;
      color: var(--text-muted);
      margin: 0;
    }

    @media (max-width: 767px) {
      .section-head h2 {
        font-size: 22px;
      }
    }

    /* ===== 分类亮点 ===== */
    .feature-grid {
      background: #ffffff;
      padding: 72px 0;
    }

    .feature-card {
      background: var(--brand-light);
      border-radius: var(--radius-card);
      padding: 28px;
      height: 100%;
      transition: transform .25s ease, box-shadow .25s ease;
      border: 1px solid transparent;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(44, 95, 138, 0.1);
    }

    .feature-icon {
      width: 56px;
      height: 56px;
      border-radius: 12px;
      background: var(--brand-main);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text-body);
    }

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

    /* ===== 内容两栏区 ===== */
    .content-section {
      padding: 72px 0;
      background: var(--brand-bg);
    }

    .category-intro {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.9;
      margin-bottom: 24px;
      background: #ffffff;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px 28px;
      border-left: 4px solid var(--brand-main);
    }

    .category-feature-img {
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      width: 100%;
      height: 220px;
      object-fit: cover;
      margin-bottom: 28px;
    }

    .info-card {
      background: #ffffff;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: transform .25s ease, box-shadow .25s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

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

    .info-card img {
      width: 100%;
      height: 160px;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .info-card:hover img {
      transform: scale(1.03);
    }

    .info-card-body {
      padding: 20px 22px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .tag-badge {
      display: inline-block;
      background: var(--brand-accent);
      color: #ffffff;
      font-size: 12px;
      border-radius: 20px;
      padding: 3px 12px;
      margin-bottom: 10px;
      align-self: flex-start;
      letter-spacing: 0.3px;
    }

    .info-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-body);
      line-height: 1.4;
    }

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

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

    .more-link i {
      transition: transform .25s ease;
    }

    .more-link:hover {
      color: var(--brand-accent);
    }

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

    /* ===== 侧边栏 ===== */
    .sidebar-widget {
      background: #ffffff;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px;
      margin-bottom: 24px;
    }

    .sidebar-widget:last-child {
      margin-bottom: 0;
    }

    .sidebar-widget h3 {
      font-size: 16px;
      font-weight: 600;
      border-left: 3px solid var(--brand-accent);
      padding-left: 10px;
      margin-bottom: 16px;
      color: var(--text-body);
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag-link {
      display: inline-block;
      font-size: 13px;
      color: var(--brand-main);
      border: 1px solid var(--brand-main);
      border-radius: 20px;
      padding: 4px 14px;
      transition: all .2s ease;
    }

    .tag-link:hover {
      background: var(--brand-light);
      border-color: var(--brand-main);
      color: var(--brand-main);
    }

    .recommend-item {
      display: flex;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--border-color);
      transition: background .2s ease;
    }

    .recommend-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .recommend-item:first-child {
      padding-top: 0;
    }

    .recommend-item img {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      object-fit: cover;
      flex-shrink: 0;
    }

    .recommend-item h4 {
      font-size: 14px;
      font-weight: 600;
      line-height: 1.4;
      margin-bottom: 4px;
      color: var(--text-body);
    }

    .recommend-item h4:hover {
      color: var(--brand-main);
    }

    .recommend-item span {
      font-size: 12px;
      color: var(--text-muted);
    }

    .contact-card {
      background: var(--brand-light);
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 10px;
    }

    .contact-item i {
      color: var(--brand-main);
      width: 18px;
      text-align: center;
      font-size: 14px;
    }

    .contact-card .btn {
      width: 100%;
      margin-top: 12px;
    }

    @media (max-width: 991px) {
      .content-section {
        padding: 56px 0;
      }

      .sidebar-widget {
        margin-top: 24px;
      }
    }

    /* ===== 流程 ===== */
    .process-section {
      background: #ffffff;
      padding: 72px 0;
    }

    .step-card {
      text-align: center;
      padding: 28px 20px;
      border-radius: var(--radius-card);
      background: var(--brand-bg);
      height: 100%;
      transition: transform .25s ease, box-shadow .25s ease;
    }

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

    .step-num {
      display: inline-flex;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--brand-main);
      color: #ffffff;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 18px;
      margin-bottom: 16px;
      box-shadow: 0 4px 12px rgba(44, 95, 138, 0.25);
    }

    .step-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text-body);
    }

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

    @media (max-width: 767px) {
      .process-section {
        padding: 48px 0;
      }
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: 72px 0;
      background: var(--brand-bg);
    }

    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px;
      height: 100%;
      display: flex;
      gap: 14px;
      transition: box-shadow .25s ease, transform .25s ease;
    }

    .faq-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .faq-badge {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 600;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .faq-q {
      background: var(--brand-accent);
      color: #ffffff;
    }

    .faq-a {
      background: var(--brand-main);
      color: #ffffff;
    }

    .faq-item h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-body);
      line-height: 1.4;
    }

    .faq-item p {
      font-size: 14px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.8;
    }

    @media (max-width: 767px) {
      .faq-section {
        padding: 48px 0;
      }
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--brand-main);
      padding: 64px 0;
      color: #ffffff;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.05);
      top: -80px;
      left: -60px;
      pointer-events: none;
    }

    .cta-section::after {
      content: "";
      position: absolute;
      width: 160px;
      height: 160px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.05);
      bottom: -50px;
      right: 6%;
      pointer-events: none;
    }

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

    .cta-section h2 {
      font-size: 30px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .cta-section p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 640px;
      margin: 0 auto 28px;
      line-height: 1.8;
    }

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

    @media (max-width: 767px) {
      .cta-section {
        padding: 48px 0;
      }

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

    /* ===== 页脚 ===== */
    .footer {
      background: #1C2B3A;
      color: #A0B2C4;
      padding: 60px 0 0;
      font-size: 14px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
    }

    .footer-brand-name {
      font-size: 22px;
      font-weight: 600;
      color: #ffffff;
    }

    .footer-brand-badge {
      font-size: 12px;
      background: rgba(255, 255, 255, 0.14);
      color: #ffffff;
      border-radius: 12px;
      padding: 2px 10px;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.8;
      color: #A0B2C4;
      margin-bottom: 18px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 15px;
      transition: background .25s ease, transform .25s ease;
    }

    .footer-social a:hover {
      background: var(--brand-accent);
      transform: translateY(-3px);
    }

    .footer h4 {
      font-size: 16px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 18px;
    }

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

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

    .footer-links a {
      color: #A0B2C4;
      font-size: 14px;
      transition: color .2s ease, padding-left .2s ease;
    }

    .footer-links a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .footer-contact p {
      margin-bottom: 10px;
      color: #A0B2C4;
      font-size: 14px;
    }

    .footer-contact i {
      width: 20px;
      color: var(--brand-accent);
      margin-right: 6px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      margin-top: 48px;
      text-align: center;
      font-size: 13px;
      color: #8096A8;
    }

    @media (max-width: 767px) {
      .footer {
        padding: 48px 0 0;
      }

      .footer .row > div {
        margin-bottom: 28px;
      }

      .footer-bottom {
        margin-top: 24px;
      }
    }

    /* ===== 通用响应式 ===== */
    @media (max-width: 767px) {
      body {
        font-size: 15px;
      }

      .section-head h2 {
        font-size: 22px;
      }

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

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

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

      .info-card img {
        height: 140px;
      }

      .category-feature-img {
        height: 170px;
      }

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

      .faq-item {
        padding: 20px;
      }
    }

    @media (max-width: 575px) {
      .brand-name {
        font-size: 20px;
      }

      .brand-badge {
        font-size: 11px;
        padding: 2px 8px;
      }

      .category-hero .hero-btns .btn {
        width: 100%;
      }

      .feature-card {
        padding: 22px;
      }

      .step-card {
        padding: 20px 16px;
      }

      .sidebar-widget {
        padding: 20px;
      }

      .tag-link {
        font-size: 12px;
        padding: 3px 12px;
      }
    }

/* roulang page: category3 */
:root {
            --brand-main: #2C5F8A;
            --brand-accent: #F07C2A;
            --brand-bg: #E8F0F7;
            --text-body: #2A2A2E;
            --text-muted: #6B7280;
            --border-color: #E4E8EC;
            --radius-card: 12px;
            --shadow-card: 0 2px 8px rgba(44, 95, 138, 0.06), 0 8px 24px rgba(44, 95, 138, 0.08);
            --shadow-hover: 0 4px 16px rgba(44, 95, 138, 0.12), 0 16px 40px rgba(44, 95, 138, 0.14);
            --footer-bg: #1C2B3A;
            --footer-text: #A0B2C4;
            --body-bg: #F6F8FA;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-main);
            color: var(--text-body);
            background: var(--body-bg);
            font-size: 16px;
            line-height: 1.7;
            padding-top: 68px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: var(--brand-main);
            transition: color .2s ease;
        }
        a:hover {
            color: #1B3D5C;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1200px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-body);
        }
        .text-muted {
            color: var(--text-muted) !important;
        }

        /* ===== 导航 ===== */
        .navbar {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(44, 95, 138, 0.04);
            min-height: 68px;
            z-index: 1040;
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin-right: 24px;
        }
        .brand-name {
            font-weight: 600;
            font-size: 22px;
            color: var(--brand-main);
            line-height: 1.2;
        }
        .brand-badge {
            background: var(--brand-bg);
            color: var(--brand-main);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 12px;
            font-weight: 500;
            line-height: 1.4;
        }
        .navbar-nav .nav-link {
            color: var(--brand-main);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px;
            position: relative;
            transition: color .2s ease;
        }
        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            background: var(--brand-accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .25s ease;
        }
        .navbar-nav .nav-link:hover {
            color: #1B3D5C;
        }
        .navbar-nav .nav-link:hover::after {
            transform: scaleX(1);
        }
        .navbar-nav .nav-link.active {
            color: #1B3D5C;
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        .navbar-nav .nav-link:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .navbar-toggler {
            border: none;
            padding: 8px;
            background: transparent;
            border-radius: 6px;
            box-shadow: none !important;
        }
        .toggler-bar {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--brand-main);
            margin: 5px auto;
            border-radius: 2px;
            transition: background .2s;
        }
        .navbar-toggler:hover .toggler-bar {
            background: var(--brand-accent);
        }

        /* ===== 按钮 ===== */
        .btn {
            border-radius: 8px;
            font-weight: 500;
            font-size: 15px;
            padding: 10px 24px;
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .btn-accent {
            background: var(--brand-accent);
            border-color: var(--brand-accent);
            color: #fff;
            box-shadow: 0 2px 6px rgba(240, 124, 42, 0.25);
        }
        .btn-accent:hover {
            background: #D96A1F;
            border-color: #D96A1F;
            color: #fff;
            box-shadow: 0 4px 12px rgba(240, 124, 42, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline-primary {
            background: #fff;
            border: 1px solid var(--brand-main);
            color: var(--brand-main);
        }
        .btn-outline-primary:hover {
            background: var(--brand-bg);
            border-color: var(--brand-main);
            color: #1B3D5C;
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--brand-bg);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(44, 95, 138, 0.25);
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, rgba(232, 240, 247, 0.96), rgba(255, 255, 255, 0.92) 55%, rgba(246, 248, 250, 0.95)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 80px 0 56px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: rgba(44, 95, 138, 0.06);
            border-radius: 50%;
        }
        .category-hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: 10%;
            width: 140px;
            height: 140px;
            background: rgba(240, 124, 42, 0.06);
            border-radius: 50%;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(44, 95, 138, 0.1);
            color: var(--brand-main);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text-body);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .hero-sub {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-image {
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
            max-height: 320px;
        }

        /* ===== 主体内容区 ===== */
        .category-content {
            padding: 56px 0 72px;
        }
        .content-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
            margin-bottom: 24px;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .content-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .section-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-body);
            padding-left: 14px;
            border-left: 4px solid var(--brand-accent);
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .category-banner {
            border-radius: var(--radius-card);
            width: 100%;
            object-fit: cover;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }
        .intro-text {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .intro-text strong {
            color: var(--text-body);
            font-weight: 600;
        }

        /* ===== 福利类型卖点 ===== */
        .benefit-item {
            background: var(--brand-bg);
            border-radius: 12px;
            padding: 24px 18px;
            text-align: center;
            height: 100%;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .benefit-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .benefit-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: #fff;
            color: var(--brand-main);
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 2px 6px rgba(44, 95, 138, 0.08);
        }
        .benefit-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-body);
        }
        .benefit-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== 流程 ===== */
        .steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
        }
        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-main);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 精选礼包卡片 ===== */
        .gift-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .gift-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .gift-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            display: block;
        }
        .gift-card-body {
            padding: 18px;
        }
        .gift-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 8px;
        }
        .gift-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .gift-link {
            font-size: 14px;
            color: var(--brand-main);
            font-weight: 500;
        }
        .gift-link:hover {
            color: var(--brand-accent);
        }
        .gift-link i {
            font-size: 12px;
            margin-left: 4px;
            transition: transform .2s;
        }
        .gift-link:hover i {
            transform: translateX(3px);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--brand-bg);
            border-radius: 10px;
            padding: 20px;
            transition: background .2s ease;
        }
        .faq-item:hover {
            background: #DDE9F4;
        }
        .faq-q {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 8px;
        }
        .faq-a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .q-badge {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--brand-accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 1px;
        }
        .a-badge {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--brand-main);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* ===== CTA ===== */
        .category-cta {
            background: var(--brand-main);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
            box-shadow: var(--shadow-card);
        }
        .category-cta h2 {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #fff;
        }
        .category-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 480px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 侧边栏 ===== */
        .sidebar-widget {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            margin-bottom: 24px;
            transition: box-shadow .25s ease;
        }
        .sidebar-widget:hover {
            box-shadow: var(--shadow-hover);
        }
        .widget-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-body);
            padding-left: 12px;
            border-left: 4px solid var(--brand-accent);
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-link {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--brand-main);
            border-radius: 20px;
            color: var(--brand-main);
            font-size: 13px;
            font-weight: 500;
            transition: all .2s ease;
        }
        .tag-link:hover {
            background: var(--brand-bg);
            color: #1B3D5C;
            border-color: var(--brand-main);
        }
        .tag-link:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }
        .side-post {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            align-items: center;
        }
        .side-post:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .side-post img {
            width: 64px;
            height: 48px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .side-post-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .2s ease;
        }
        .side-post:hover .side-post-title {
            color: var(--brand-main);
        }
        .side-post-time {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            display: block;
        }
        .contact-widget {
            background: var(--brand-bg);
        }
        .contact-widget .contact-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .contact-widget .btn {
            width: 100%;
        }
        .contact-info-line {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 12px;
        }
        .contact-info-line i {
            color: var(--brand-main);
            width: 18px;
            text-align: center;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 64px;
            position: relative;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand-name {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            line-height: 1.2;
        }
        .footer-brand-badge {
            background: rgba(255, 255, 255, 0.12);
            color: var(--footer-text);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 12px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            color: var(--footer-text);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: var(--footer-text);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
        }
        .footer-social a:hover {
            background: var(--brand-accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--brand-accent);
            border-radius: 2px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--footer-text);
            font-size: 14px;
            transition: color .2s ease, padding-left .2s ease;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
            color: var(--footer-text);
        }
        .footer-contact i {
            color: var(--brand-accent);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 48px;
            text-align: center;
        }
        .footer-bottom .container {
            font-size: 13px;
            color: rgba(160, 178, 196, 0.7);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .category-hero {
                padding: 56px 0 40px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .navbar-collapse {
                background: #fff;
                border-top: 1px solid var(--border-color);
                padding: 16px;
                margin-top: 12px;
                border-radius: 12px;
                box-shadow: var(--shadow-card);
            }
            .navbar-nav .nav-link {
                padding: 12px 16px;
            }
            .navbar-nav .nav-link.active {
                background: var(--brand-bg);
                border-radius: 8px;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .category-content {
                padding: 40px 0 48px;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 60px;
            }
            .brand-name {
                font-size: 20px;
            }
            .content-card {
                padding: 24px 20px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .category-cta {
                padding: 36px 24px;
            }
            .category-cta h2 {
                font-size: 24px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .footer {
                padding-top: 48px;
            }
            .footer h4 {
                margin-bottom: 16px;
            }
        }
        @media (max-width: 520px) {
            .hero-eyebrow {
                font-size: 12px;
                padding: 5px 12px;
            }
            .section-title {
                font-size: 19px;
            }
            .benefit-item {
                padding: 20px 14px;
            }
            .sidebar-widget {
                padding: 20px 16px;
            }
            .category-cta {
                padding: 32px 20px;
            }
        }