/* roulang page: index */
:root {
  --body-bg: #F4F7FB;
  --surface: #FFFFFF;
  --surface-alt: #EAF0F8;
  --primary: #1F5C8B;
  --primary-600: #1A4D77;
  --primary-700: #143E63;
  --accent: #E8701A;
  --accent-hover: #D35F0C;
  --text-main: #1E2A36;
  --text-sub: #5A6B7C;
  --text-weak: #8A99A9;
  --border-light: #E2EAF3;
  --line: #D5E0EC;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 30px rgba(28, 50, 80, 0.06);
  --shadow-hover: 0 16px 40px rgba(28, 50, 80, 0.13);
  --shadow-nav: 0 2px 16px rgba(18, 38, 58, 0.08);
  --transition: 0.25s ease;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --header-h: 72px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--body-bg);
  color: var(--text-main);
  line-height: 1.7;
  padding-bottom: 80px;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; }
.container { max-width: 1280px; padding-left: 20px; padding-right: 20px; }
.text-muted-custom { color: var(--text-sub) !important; }
.weak-text { color: var(--text-weak); font-size: 13px; }

/* ===== Buttons ===== */
.btn { border-radius: var(--radius-sm); padding: 10px 24px; font-weight: 600; font-size: 15px; border: none; transition: all var(--transition); }
.btn:focus, .btn:focus-visible { outline: 2px solid rgba(232, 112, 26, 0.5); outline-offset: 2px; box-shadow: none; }
.btn-accent { background: var(--accent); color: #fff !important; border-radius: 10px; }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(232, 112, 26, 0.25); }
.btn-outline-blue { background: transparent; border: 1px solid #B8C8DE; color: var(--primary) !important; border-radius: 10px; }
.btn-outline-blue:hover { border-color: var(--primary); background: var(--surface-alt); transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid rgba(232, 112, 26, 0.5); box-shadow: 0 0 0 4px rgba(232, 112, 26, 0.12); }

/* ===== Section & Block ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--surface-alt); }
.section-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 58px; height: 58px; border-radius: 14px;
  background: var(--surface-alt); color: var(--accent);
  font-size: 24px; margin-bottom: 18px;
}
.block-title-wrap { margin-bottom: 48px; position: relative; }
.block-bar { width: 4px; height: 26px; background: var(--accent); border-radius: 2px; display: inline-block; vertical-align: middle; margin-right: 12px; }
.block-title { font-size: 24px; font-weight: 700; color: var(--text-main); display: inline-block; vertical-align: middle; margin: 0; }
.block-sub-label { display: block; font-size: 13px; letter-spacing: 2px; color: var(--text-weak); text-transform: uppercase; margin-top: 4px; font-weight: 500; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 1050;
  background: var(--surface);
  box-shadow: var(--shadow-nav);
}
.site-header .navbar { min-height: var(--header-h); padding: 0; background: var(--surface); }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--text-main) !important; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-700));
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
}
.brand-text { color: var(--primary-700); }
.site-header .navbar-nav { align-items: center; }
.site-header .nav-link {
  font-size: 15px; font-weight: 500;
  color: var(--text-main) !important;
  padding: 8px 18px !important;
  border-radius: 8px;
  position: relative;
  transition: all var(--transition);
}
.site-header .nav-link:hover { color: var(--primary) !important; background: var(--surface-alt); }
.site-header .nav-link.active { color: var(--primary) !important; font-weight: 700; }
.site-header .nav-link.active::after {
  content: ""; position: absolute; left: 18px; right: 18px; bottom: 2px;
  height: 2px; background: var(--accent); border-radius: 1px;
}
.header-cta { margin-left: 16px; }
@media (max-width: 991px) {
  .site-header .navbar-collapse { background: var(--surface); padding: 16px 0 20px; border-radius: 0 0 var(--radius) var(--radius); box-shadow: 0 20px 40px rgba(18, 38, 58, 0.08); }
  .site-header .nav-link { padding: 12px 16px !important; }
  .header-cta { margin: 12px 0 0 16px; }
  .navbar-toggler { border: none; padding: 6px 10px; color: var(--primary); }
  .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(31, 92, 139, 0.2); }
  .navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F5C8B' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }
}

/* ===== Mega Menu ===== */
.nav-item.dropdown { position: static; }
.nav-item.dropdown:hover .dropdown-menu.mega-panel { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.dropdown-menu.mega-panel {
  display: block; opacity: 0; visibility: hidden; transform: translateY(10px);
  pointer-events: none; transition: all 0.2s ease;
  border: none; border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-hover);
  background: var(--surface-alt);
  padding: 28px 32px;
  min-width: 620px;
  top: 100%; left: 50%; transform: translateX(-50%) translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  margin-top: 0;
}
.nav-item.dropdown:hover .dropdown-menu.mega-panel { transform: translateX(-50%) translateY(0); }
.dropdown-menu.mega-panel .mega-title { font-size: 13px; font-weight: 700; color: var(--text-weak); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 16px; }
.dropdown-menu.mega-panel .mega-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 8px;
  color: var(--text-main); font-size: 15px; font-weight: 500;
  transition: all var(--transition);
}
.dropdown-menu.mega-panel .mega-link:hover { background: var(--surface); color: var(--primary); box-shadow: 0 4px 15px rgba(28, 50, 80, 0.06); }
.dropdown-menu.mega-panel .mega-link i { color: var(--accent); width: 20px; text-align: center; }
.dropdown-menu.mega-panel .mega-news {
  display: block; padding: 10px 14px; border-radius: 8px;
  border-bottom: 1px dashed var(--line);
  transition: all var(--transition);
}
.dropdown-menu.mega-panel .mega-news:last-child { border-bottom: none; }
.dropdown-menu.mega-panel .mega-news:hover { background: var(--surface); transform: translateY(-2px); }
.dropdown-menu.mega-panel .mega-news-title { font-size: 14px; color: var(--text-main); font-weight: 500; display: block; margin-bottom: 4px; }
.dropdown-menu.mega-panel .mega-news-date { font-size: 12px; color: var(--text-weak); display: block; }
.dropdown-menu.mega-panel .mega-empty { font-size: 14px; color: var(--text-weak); padding: 14px; text-align: center; }
@media (max-width: 991px) {
  .dropdown-menu.mega-panel { position: static !important; min-width: 0; opacity: 1; visibility: visible; transform: none !important; box-shadow: none; background: var(--body-bg); margin: 8px 0 0; padding: 16px; border-radius: var(--radius); display: none; }
  .nav-item.dropdown.show .dropdown-menu.mega-panel { display: block; }
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background-image: url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  padding: 96px 0 88px;
  overflow: hidden;
}
.hero-section::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.94) 0%, rgba(255,255,255,0.78) 50%, rgba(255,255,255,0.45) 100%);
}
.hero-section .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(232, 112, 26, 0.12);
  color: var(--accent);
  font-size: 13px; font-weight: 600;
  padding: 6px 16px; border-radius: 30px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 40px; font-weight: 800; line-height: 1.25;
  color: var(--primary-700);
  margin-bottom: 18px;
  max-width: 720px;
}
.hero-subtitle { font-size: 18px; font-weight: 600; color: var(--text-main); margin-bottom: 12px; }
.hero-lead { font-size: 15px; color: var(--text-sub); max-width: 560px; margin-bottom: 30px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 32px; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat-num { font-size: 28px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.hero-stat-label { font-size: 13px; color: var(--text-weak); margin-top: 2px; }
@media (max-width: 991px) {
  .hero-section { padding: 64px 0 56px; }
  .hero-title { font-size: 34px; }
}
@media (max-width: 767px) {
  .hero-section { padding: 48px 0 40px; }
  .hero-title { font-size: 26px; }
  .hero-subtitle { font-size: 16px; }
  .hero-stats { gap: 20px; }
  .hero-stat-num { font-size: 22px; }
}

/* ===== Feature Cards ===== */
.feature-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 32px 28px;
  height: 100%;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-light);
}
.feature-card .feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--surface-alt); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.feature-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 16px; }
.feature-more { font-size: 14px; font-weight: 600; color: var(--primary); }
.feature-more:hover { color: var(--accent); }
.feature-more i { font-size: 12px; margin-left: 4px; transition: transform var(--transition); }
.feature-more:hover i { transform: translateX(4px); }

/* ===== Scene Area ===== */
.scene-section { background: var(--surface); }
.scene-image { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-card); height: 100%; min-height: 320px; }
.scene-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.scene-image:hover img { transform: scale(1.03); }
.scene-list { display: flex; flex-direction: column; }
.scene-row {
  display: flex; gap: 20px; padding: 24px 0;
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition);
}
.scene-row:last-child { border-bottom: none; }
.scene-num { font-size: 16px; font-weight: 800; color: var(--accent); width: 42px; flex-shrink: 0; line-height: 1.6; }
.scene-row h4 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.scene-row p { font-size: 14px; color: var(--text-sub); margin: 0; line-height: 1.7; }
.scene-row:hover { background: var(--body-bg); padding-left: 12px; padding-right: 12px; border-radius: 10px; }
.news-panel {
  background: var(--body-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 28px;
}
.news-panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.news-panel-header h5 { font-size: 15px; font-weight: 700; margin: 0; }
.news-panel-header .news-more { font-size: 13px; color: var(--text-weak); }
.news-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border-light);
  font-size: 14px;
}
.news-item:last-child { border-bottom: none; }
.news-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.news-link { flex: 1; display: flex; align-items: center; gap: 10px; color: var(--text-main); }
.news-link:hover { color: var(--primary); }
.news-text { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-date { font-size: 12px; color: var(--text-weak); flex-shrink: 0; }
.news-empty { text-align: center; padding: 20px; color: var(--text-weak); }
.news-empty i { font-size: 28px; color: var(--border-light); margin-bottom: 8px; display: block; }
.news-empty p { margin: 0; font-size: 14px; }

/* ===== Social Proof ===== */
.social-section { background: var(--surface-alt); }
.logo-wall { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 36px; margin-bottom: 48px; }
.logo-item { font-size: 17px; font-weight: 700; color: rgba(18, 38, 58, 0.4); letter-spacing: 1px; white-space: nowrap; transition: all var(--transition); }
.logo-item:hover { color: var(--primary); }
.testimonial {
  text-align: center; max-width: 760px; margin: 0 auto 56px;
  background: var(--surface); border-radius: var(--radius);
  padding: 40px 48px; box-shadow: var(--shadow-card);
}
.testimonial-icon { color: var(--accent); font-size: 32px; margin-bottom: 16px; opacity: 0.6; }
.testimonial-text { font-size: 22px; font-weight: 600; color: var(--primary-700); line-height: 1.6; margin-bottom: 20px; }
.testimonial-author { font-size: 14px; color: var(--text-weak); }
.stats-bar {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 36px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-item { text-align: center; }
.stat-num { font-size: 30px; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 13px; color: var(--text-sub); margin-top: 4px; }
@media (max-width: 767px) {
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .testimonial { padding: 28px 20px; }
  .testimonial-text { font-size: 18px; }
  .logo-wall { gap: 20px; }
}

/* ===== About SEO ===== */
.about-section { background: var(--surface); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-image { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-card); }
.about-image img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
.about-content h3 { font-size: 22px; font-weight: 700; color: var(--primary-700); margin-bottom: 16px; }
.about-content p { font-size: 15px; color: var(--text-sub); line-height: 1.85; margin-bottom: 16px; }
.about-list { list-style: none; padding: 0; margin: 20px 0 0; }
.about-list li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; color: var(--text-main);
  padding: 8px 0;
}
.about-list li i { color: var(--accent); margin-top: 4px; }
@media (max-width: 991px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== FAQ ===== */
.faq-section { background: var(--body-bg); }
.accordion { max-width: 860px; margin: 0 auto; }
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius) !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(28, 50, 80, 0.03);
  transition: all var(--transition);
}
.accordion-item:has(.accordion-button:not(.collapsed)) {
  border-top: 3px solid var(--accent);
  box-shadow: var(--shadow-card);
}
.accordion-button {
  background: var(--surface);
  color: var(--text-main);
  font-size: 15px; font-weight: 600;
  padding: 18px 22px;
  box-shadow: none;
  border: none;
}
.accordion-button:not(.collapsed) { background: #F8FAFD; color: var(--primary-700); }
.accordion-button:focus { box-shadow: 0 0 0 3px rgba(31, 92, 139, 0.1); border-color: transparent; }
.accordion-button::after { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F5C8B'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e"); }
.accordion-body { padding: 6px 22px 22px; font-size: 15px; color: var(--text-sub); line-height: 1.8; background: var(--surface); }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background-image: url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  padding: 72px 0;
}
.cta-section::before { content: ""; position: absolute; inset: 0; background: rgba(18, 38, 58, 0.82); }
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-title { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-subtitle { font-size: 16px; color: rgba(255,255,255,0.8); margin-bottom: 32px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-cta-light { background: var(--accent); color: #fff !important; }
.btn-cta-light:hover { background: var(--accent-hover); }
.btn-cta-outline { background: transparent; border: 1px solid rgba(255,255,255,0.6); color: #fff !important; }
.btn-cta-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
@media (max-width: 767px) {
  .cta-section { padding: 48px 0; }
  .cta-title { font-size: 22px; }
}

/* ===== Trust badges ===== */
.trust-row { display: flex; flex-wrap: wrap; gap: 30px; justify-content: center; margin-top: 36px; }
.trust-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.7); font-size: 14px; }
.trust-item i { color: rgba(255,255,255,0.9); }

/* ===== Footer ===== */
.site-footer { background: var(--navy); color: rgba(255,255,255,0.7); padding: 56px 0 0; margin-top: 0; }
.footer-top { padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand-name { font-size: 20px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand-name .brand-icon { background: var(--accent); color: #fff; }
.footer-desc { font-size: 14px; line-height: 1.7; max-width: 300px; margin-bottom: 20px; opacity: 0.7; }
.footer-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: 1px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 14px; transition: all var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-contact li i { color: var(--accent); margin-top: 5px; }
.footer-bottom { padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); border-top: 1px solid rgba(255,255,255,0.05); }
.footer-bottom a { color: rgba(255,255,255,0.5); }

/* ===== Floating CTA ===== */
.floating-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1040;
  background: var(--surface);
  border-top: 1px solid var(--border-light);
  box-shadow: 0 -6px 30px rgba(18, 38, 58, 0.08);
  padding: 12px 0;
  display: flex; align-items: center;
}
.floating-cta .container { display: flex; align-items: center; justify-content: space-between; }
.floating-text { font-size: 15px; font-weight: 600; color: var(--primary-700); }
.floating-text i { color: var(--accent); margin-right: 6px; }
@media (max-width: 767px) {
  .floating-text { font-size: 13px; }
  .floating-text .long-text { display: none; }
  .btn-sm-sm { padding: 8px 16px; font-size: 14px; }
}

/* ===== Responsive helpers ===== */
@media (max-width: 1199px) {
  .scene-grid { grid-template-columns: 1fr; }
}
@media (min-width: 992px) and (max-width: 1199px) {
  .hero-title { font-size: 34px; }
}
@media (max-width: 991px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-card:nth-child(3) { grid-column: span 2; }
}
@media (max-width: 767px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card:nth-child(3) { grid-column: span 1; }
  .section { padding: 40px 0; }
  .block-title { font-size: 22px; }
}

/* roulang page: category1 */
:root {
      --brand-blue: #1F5C8B;
      --brand-blue-dark: #163E5C;
      --brand-orange: #E8701A;
      --brand-orange-dark: #D35F0C;
      --bg-light: #F4F7FB;
      --bg-blue: #EAF0F8;
      --text-main: #243447;
      --text-muted: #6B7B8F;
      --border-light: #E3EAF2;
      --card-radius: 14px;
      --card-shadow: 0 8px 30px rgba(28, 50, 80, 0.06);
      --card-shadow-hover: 0 16px 40px rgba(28, 50, 80, 0.13);
      --spacing-section: 64px;
      --spacing-mobile: 40px;
      --font-main: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background: var(--bg-light);
      color: var(--text-main);
      line-height: 1.7;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--brand-blue);
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .25s ease;
    }

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

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

    .container {
      max-width: 1280px;
      padding-left: 24px;
      padding-right: 24px;
    }

    .btn {
      font-weight: 600;
      border-radius: 10px;
      padding: 10px 24px;
      transition: all .25s ease;
      border: 1px solid transparent;
      letter-spacing: .02em;
    }

    .btn:focus-visible {
      outline: 2px solid rgba(232, 112, 26, 0.5);
      outline-offset: 2px;
    }

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

    .btn-primary:hover,
    .btn-primary:focus {
      background: var(--brand-orange-dark);
      border-color: var(--brand-orange-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(232, 112, 26, 0.3);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid #B8C8DE;
      color: var(--brand-blue);
    }

    .btn-outline:hover,
    .btn-outline:focus {
      border-color: var(--brand-blue);
      color: var(--brand-blue-dark);
      background: rgba(31, 92, 139, 0.04);
    }

    .btn-outline-light {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.7);
      color: #fff;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border-color: #fff;
    }

    /* Section title */
    .section-head {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 32px;
    }

    .section-head::before {
      content: "";
      width: 4px;
      height: 24px;
      background: var(--brand-orange);
      border-radius: 2px;
      flex-shrink: 0;
    }

    .section-head .zh-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin: 0;
    }

    .section-head .en-title {
      font-size: 13px;
      letter-spacing: 2px;
      color: #9AA9BB;
      text-transform: uppercase;
      font-weight: 500;
      white-space: nowrap;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--border-light);
      position: sticky;
      top: 0;
      z-index: 1030;
      box-shadow: 0 2px 12px rgba(28, 50, 80, 0.04);
    }

    .navbar {
      min-height: 72px;
      padding-top: 0;
      padding-bottom: 0;
    }

    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      padding-top: 0;
      padding-bottom: 0;
      font-weight: 700;
      font-size: 20px;
      color: var(--text-main);
    }

    .navbar-brand:hover {
      color: var(--brand-blue);
    }

    .brand-icon {
      width: 38px;
      height: 38px;
      background: var(--brand-blue);
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 17px;
      flex-shrink: 0;
    }

    .brand-text {
      font-size: 19px;
      letter-spacing: .01em;
    }

    .navbar-nav {
      gap: 4px;
      align-items: center;
    }

    .nav-link {
      font-weight: 500;
      color: var(--text-main);
      font-size: 15px;
      padding: 10px 16px !important;
      border-radius: 8px;
      position: relative;
    }

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

    .nav-link.active {
      color: var(--brand-orange);
      font-weight: 600;
      background: rgba(232, 112, 26, 0.06);
    }

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

    .navbar-toggler {
      border: 1px solid #D5E0EC;
      border-radius: 8px;
      padding: 6px 10px;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(31, 92, 139, 0.12);
    }

    .btn-nav {
      margin-left: 16px;
      padding: 8px 20px;
      font-size: 14px;
      flex-shrink: 0;
    }

    /* Mega dropdown */
    .dropdown-menu.mega-panel {
      width: 620px;
      max-width: calc(100vw - 32px);
      padding: 24px;
      border: 1px solid var(--border-light);
      border-radius: 16px;
      box-shadow: var(--card-shadow);
      background: #fff;
      margin-top: 12px;
      transition: opacity .2s ease, transform .2s ease;
    }

    .dropdown-menu.mega-panel.show {
      transform: translateY(0);
      opacity: 1;
    }

    .mega-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      padding-bottom: 8px;
      border-bottom: 1px solid var(--border-light);
      letter-spacing: .04em;
    }

    .mega-link {
      display: block;
      padding: 9px 12px;
      border-radius: 8px;
      font-size: 14px;
      color: var(--text-main);
      font-weight: 500;
      margin-bottom: 4px;
    }

    .mega-link i {
      width: 22px;
      color: var(--brand-blue);
      margin-right: 4px;
    }

    .mega-link:hover {
      background: var(--bg-blue);
      color: var(--brand-orange);
    }

    .mega-news {
      display: flex;
      flex-direction: column;
      padding: 10px 12px;
      border-radius: 10px;
      margin-bottom: 6px;
      background: var(--bg-light);
      border: 1px solid transparent;
      transition: all .25s ease;
    }

    .mega-news:hover {
      background: #fff;
      border-color: var(--border-light);
      box-shadow: 0 4px 12px rgba(28, 50, 80, 0.06);
      transform: translateX(4px);
    }

    .mega-news-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    .mega-news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* ===== Category Hero ===== */
    .cate-hero {
      position: relative;
      background: linear-gradient(135deg, #EAF0F8 0%, #F7FAFD 60%, #FFFFFF 100%);
      padding: 72px 0 64px;
      border-bottom: 1px solid var(--border-light);
      overflow: hidden;
    }

    .cate-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      opacity: .16;
      pointer-events: none;
    }

    .cate-hero .container {
      position: relative;
      z-index: 1;
    }

    .cate-breadcrumb {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 18px;
      letter-spacing: .02em;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .cate-breadcrumb a {
      color: var(--brand-blue);
    }

    .cate-breadcrumb a:hover {
      color: var(--brand-orange);
    }

    .cate-hero h1 {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .cate-hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 520px;
      line-height: 1.75;
      margin-bottom: 28px;
    }

    .cate-hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 24px;
    }

    .cate-hero-actions .btn {
      padding: 11px 26px;
      font-size: 15px;
    }

    .cate-hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff;
      border: 1px solid #D5E0EC;
      border-radius: 100px;
      padding: 5px 14px;
      font-size: 13px;
      color: var(--brand-blue);
      font-weight: 500;
      box-shadow: 0 2px 6px rgba(28, 50, 80, 0.04);
    }

    .tag::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--brand-orange);
      border-radius: 50%;
      flex-shrink: 0;
    }

    .cate-hero-img {
      width: 100%;
      max-width: 460px;
      margin-left: auto;
      border-radius: 18px;
      box-shadow: var(--card-shadow-hover);
      border: 1px solid rgba(255, 255, 255, 0.8);
    }

    /* ===== Main layout ===== */
    .cate-main-wrap {
      padding: var(--spacing-section) 0;
    }

    .cate-main {
      padding-right: 8px;
    }

    .cate-sidebar {
      padding-left: 8px;
    }

    .card {
      border: 1px solid var(--border-light);
      border-radius: var(--card-radius);
      box-shadow: var(--card-shadow);
      background: #fff;
      transition: transform .25s ease, box-shadow .25s ease;
    }

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

    .card-body {
      padding: 28px;
    }

    /* Overview */
    .overview-card {
      padding: 28px;
      margin-bottom: 32px;
    }

    .overview-text {
      font-size: 15px;
      line-height: 1.85;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .overview-text:last-child {
      margin-bottom: 0;
    }

    .scenario-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .scenario-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--bg-light);
      border: 1px solid #D5E0EC;
      border-radius: 8px;
      padding: 8px 16px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      transition: all .2s ease;
    }

    .scenario-tag i {
      color: var(--brand-orange);
    }

    .scenario-tag:hover {
      border-color: var(--brand-blue);
      background: #fff;
      color: var(--brand-blue);
    }

    /* Feature cards */
    .feature-grid {
      margin-bottom: 40px;
    }

    .feature-card {
      height: 100%;
      padding: 26px 24px;
      border-radius: var(--card-radius);
      background: #fff;
      border: 1px solid var(--border-light);
      box-shadow: var(--card-shadow);
      transition: transform .25s ease, box-shadow .25s ease;
      position: relative;
      overflow: hidden;
    }

    .feature-card::after {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 3px;
      background: var(--brand-orange);
      opacity: 0;
      transition: opacity .25s ease;
    }

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

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

    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--bg-blue);
      color: var(--brand-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .feature-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* Process */
    .process-section {
      margin-bottom: 40px;
    }

    .process-item {
      display: flex;
      gap: 18px;
      padding: 22px 0;
      border-bottom: 1px solid var(--border-light);
      transition: background .2s ease;
    }

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

    .process-item:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .process-num {
      width: 44px;
      height: 44px;
      background: var(--brand-blue);
      color: #fff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .process-title {
      font-size: 17px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

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

    /* Case card */
    .case-card {
      margin-bottom: 32px;
      border-radius: var(--card-radius);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--card-shadow);
      background: #fff;
      transition: transform .25s ease, box-shadow .25s ease;
    }

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

    .case-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      border-bottom: 1px solid var(--border-light);
    }

    .case-body {
      padding: 26px 28px;
    }

    .case-body h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 12px;
    }

    .case-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--brand-orange);
    }

    .case-link i {
      font-size: 12px;
      margin-left: 4px;
    }

    /* Sidebar */
    .sidebar-card {
      background: #fff;
      border: 1px solid var(--border-light);
      border-radius: var(--card-radius);
      box-shadow: var(--card-shadow);
      padding: 24px;
      margin-bottom: 24px;
      transition: box-shadow .25s ease;
    }

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

    .sidebar-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border-light);
    }

    .sidebar-title i {
      color: var(--brand-orange);
      font-size: 15px;
    }

    .sidebar-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      background: var(--bg-light);
      margin-bottom: 8px;
      transition: all .2s ease;
      border: 1px solid transparent;
    }

    .sidebar-link i {
      width: 20px;
      color: var(--brand-blue);
      text-align: center;
    }

    .sidebar-link:hover {
      background: #fff;
      border-color: var(--brand-blue);
      color: var(--brand-blue);
      transform: translateX(4px);
    }

    .sidebar-news {
      display: flex;
      flex-direction: column;
      padding: 12px;
      border-radius: 10px;
      margin-bottom: 6px;
      transition: background .2s ease;
    }

    .sidebar-news:hover {
      background: var(--bg-light);
    }

    .sidebar-news-title {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      line-height: 1.5;
    }

    .sidebar-news-title:hover {
      color: var(--brand-orange);
    }

    .sidebar-news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
      letter-spacing: .04em;
    }

    .sidebar-contact li {
      list-style: none;
      display: flex;
      gap: 10px;
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.6;
    }

    .sidebar-contact li i {
      width: 20px;
      height: 20px;
      color: var(--brand-blue);
      margin-top: 3px;
    }

    .sidebar-cta {
      text-align: center;
      background: var(--bg-blue);
      border: 1px dashed #B8C8DE;
      border-radius: 10px;
      padding: 16px 12px;
      font-size: 14px;
    }

    .sidebar-cta strong {
      display: block;
      margin-bottom: 8px;
      font-size: 15px;
      color: var(--text-main);
    }

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

    .faq-section .container {
      max-width: 920px;
    }

    .accordion-item {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: 14px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: box-shadow .25s ease;
    }

    .accordion-item:hover {
      box-shadow: 0 4px 14px rgba(28, 50, 80, 0.04);
    }

    .accordion-button {
      background: #fff;
      border-radius: 14px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      padding: 18px 22px;
      box-shadow: none;
      border: none;
      transition: color .2s ease, background .2s ease;
    }

    .accordion-button:not(.collapsed) {
      background: #fff;
      color: var(--brand-blue);
      border-top: 3px solid var(--brand-orange);
      border-radius: 14px 14px 0 0;
    }

    .accordion-button:focus {
      box-shadow: none;
      outline: 2px solid rgba(31, 92, 139, 0.12);
      outline-offset: -2px;
    }

    .accordion-button::after {
      background-size: 14px;
      flex-shrink: 0;
    }

    .accordion-body {
      padding: 20px 22px 22px;
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-muted);
      background: #fff;
    }

    /* CTA section */
    .cta-section {
      padding: 64px 0;
      background: var(--brand-blue-dark);
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      opacity: .12;
      pointer-events: none;
    }

    .cta-box {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 18px;
      padding: 44px 48px;
    }

    .cta-info h2 {
      font-size: 26px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .cta-info p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 0;
      max-width: 460px;
      line-height: 1.7;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }

    .cta-actions .btn-lg {
      padding: 14px 30px;
      font-size: 15px;
    }

    /* Footer */
    .site-footer {
      background: #12263A;
      color: rgba(255, 255, 255, 0.75);
      padding: 64px 0 0;
    }

    .footer-top {
      padding-bottom: 40px;
    }

    .footer-brand-name {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-brand-name .brand-icon {
      background: var(--brand-orange);
    }

    .footer-desc {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      max-width: 300px;
      line-height: 1.8;
      margin-bottom: 0;
    }

    .footer-title {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
      padding-bottom: 8px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

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

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

    .footer-links a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 14px;
      transition: color .2s ease, padding-left .2s ease;
    }

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

    .footer-contact li {
      display: flex;
      gap: 10px;
      font-size: 14px;
      margin-bottom: 10px;
    }

    .footer-contact li i {
      width: 18px;
      color: var(--brand-orange);
      margin-top: 3px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 18px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
      text-align: center;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.6);
    }

    .footer-bottom a:hover {
      color: var(--brand-orange);
    }

    /* Responsive */
    @media (max-width: 1199.98px) {
      .cate-hero h1 {
        font-size: 30px;
      }

      .cate-hero {
        padding: 56px 0 48px;
      }

      .mega-panel {
        width: 520px;
      }
    }

    @media (max-width: 991.98px) {
      .navbar-collapse {
        padding: 16px 0 20px;
        border-top: 1px solid var(--border-light);
        margin-top: 8px;
      }

      .navbar-nav {
        gap: 2px;
        align-items: stretch;
        margin-bottom: 12px;
      }

      .nav-link {
        display: block;
        width: 100%;
      }

      .btn-nav {
        margin-left: 0;
        width: 100%;
        text-align: center;
      }

      .dropdown-menu.mega-panel {
        width: 100%;
        box-shadow: none;
        border: 1px solid var(--border-light);
        margin-top: 4px;
        padding: 16px;
      }

      .cate-hero-img {
        margin-top: 28px;
        max-width: 100%;
      }

      .cate-main {
        padding-right: calc(var(--bs-gutter-x) * .5);
        margin-bottom: 48px;
      }

      .cate-sidebar {
        padding-left: calc(var(--bs-gutter-x) * .5);
      }

      .cta-box {
        flex-direction: column;
        align-items: flex-start;
        padding: 36px 28px;
      }

      .cta-actions {
        width: 100%;
      }

      .cta-actions .btn {
        flex: 1;
      }
    }

    @media (max-width: 767.98px) {
      .cate-hero {
        padding: 44px 0 36px;
      }

      .cate-hero h1 {
        font-size: 26px;
        line-height: 1.4;
      }

      .cate-hero-desc {
        font-size: 15px;
      }

      .cate-hero-actions .btn {
        width: 100%;
        text-align: center;
      }

      .section-head {
        gap: 10px;
        margin-bottom: 24px;
      }

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

      .section-head .en-title {
        font-size: 11px;
      }

      .overview-card {
        padding: 20px;
      }

      .feature-card {
        padding: 22px 20px;
      }

      .case-body {
        padding: 20px;
      }

      .sidebar-card {
        padding: 20px;
      }

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

      .cta-box {
        padding: 28px 20px;
      }

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

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

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

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

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

      .site-footer {
        padding-top: 40px;
      }
    }

    @media (max-width: 575.98px) {
      .brand-text {
        font-size: 17px;
      }

      .navbar-brand {
        gap: 8px;
      }

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

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

      .scenario-tags {
        flex-direction: column;
      }

      .scenario-tag {
        width: 100%;
      }

      .process-item {
        flex-direction: column;
        gap: 12px;
      }

      .process-num {
        width: 38px;
        height: 38px;
        font-size: 14px;
      }
    }

/* roulang page: article */
:root{
  --primary:#1F5C8B;
  --primary-dark:#12263A;
  --accent:#E8701A;
  --accent-hover:#D35F0C;
  --bg-light:#F4F7FB;
  --bg-blue:#EAF0F8;
  --card-bg:#ffffff;
  --text-main:#1e2a38;
  --text-muted:#6b7b8d;
  --text-light:#94a3b8;
  --border:#e2eaf2;
  --border-light:#eef2f7;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(28,50,80,0.06);
  --shadow-hover:0 16px 40px rgba(28,50,80,0.13);
  --transition:all 0.25s ease;
  --font-base:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.7;
  color:var(--text-main);
  background:var(--bg-light);
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
button:focus, a:focus, input:focus, textarea:focus{outline:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(232,112,26,.5);
  outline-offset:2px;
}
.container{max-width:1280px;width:100%;padding-left:24px;padding-right:24px}
@media(max-width:576px){.container{padding-left:16px;padding-right:16px}}

/* == 按钮 == */
.btn{font-size:15px;font-weight:600;border-radius:var(--radius-sm);padding:10px 24px;transition:var(--transition);border:1px solid transparent}
.btn-cta{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-cta:hover{background:var(--accent-hover);color:#fff;border-color:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 20px rgba(232,112,26,.28)}
.btn-outline{background:transparent;color:var(--primary);border-color:#B8C8DE}
.btn-outline:hover{background:var(--bg-blue);color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}

/* == 导航 == */
.site-header{
  position:sticky;top:0;z-index:1050;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--border-light);
  box-shadow:0 2px 12px rgba(28,50,80,.04);
}
.navbar{min-height:72px;padding-top:8px;padding-bottom:8px}
.navbar-brand{display:flex;align-items:center;gap:10px;padding:0}
.brand-icon{
  width:42px;height:42px;border-radius:10px;
  background:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;
  flex-shrink:0;
  box-shadow:0 4px 12px rgba(18,38,58,.25);
}
.brand-text{font-size:20px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px}
.navbar-nav{gap:2px}
.nav-link{
  font-size:15px;font-weight:500;color:var(--text-main);
  padding:8px 16px !important;border-radius:8px;
  transition:var(--transition);position:relative;
}
.nav-link:hover{color:var(--primary);background:var(--bg-light)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{
  content:'';position:absolute;bottom:0;left:16px;right:16px;
  height:2px;background:var(--accent);border-radius:2px;
}
.navbar-toggler{border:1px solid var(--border);border-radius:8px;padding:6px 10px}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(232,112,26,.2)}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,92,139,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}

/* Mega Panel */
.mega-panel{
  width:720px;max-width:90vw;
  padding:28px !important;
  border-radius:16px !important;
  border:1px solid var(--border-light) !important;
  box-shadow:0 20px 50px rgba(28,50,80,.14) !important;
  background:#f8fafd !important;
  margin-top:14px !important;
}
.mega-title{
  font-size:12px;font-weight:700;color:var(--text-light);
  letter-spacing:2px;text-transform:uppercase;
  margin-bottom:14px;padding-left:2px;
}
.mega-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:8px;
  color:var(--text-main);font-size:15px;
  transition:var(--transition);
}
.mega-link:hover{background:#fff;color:var(--primary);padding-left:16px;box-shadow:0 2px 8px rgba(28,50,80,.06)}
.mega-link i{color:var(--primary);width:18px;text-align:center}
.mega-news{
  display:flex;justify-content:space-between;align-items:center;
  padding:11px 12px;border-radius:8px;
  transition:var(--transition);
  border-bottom:1px solid rgba(226,234,242,.7);
}
.mega-news:last-child{border-bottom:none}
.mega-news:hover{background:#fff;padding-left:16px;box-shadow:0 2px 8px rgba(28,50,80,.06)}
.mega-news-title{font-size:14px;color:var(--text-main);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.mega-news-date{font-size:12px;color:var(--text-light);flex-shrink:0;margin-left:12px;white-space:nowrap}
.mega-empty{font-size:13px;color:var(--text-light);display:block;padding:16px;text-align:center}

/* == 面包屑 == */
.breadcrumb-wrap{margin-top:24px;margin-bottom:0}
.breadcrumb{margin-bottom:0;background:transparent;padding:0;font-size:13px;color:var(--text-muted)}
.breadcrumb-item a{color:var(--text-muted);text-decoration:none}
.breadcrumb-item a:hover{color:var(--accent)}
.breadcrumb-item.active{color:var(--text-light)}
.breadcrumb-item+.breadcrumb-item::before{color:var(--text-light)}

/* == 文章主区 == */
.article-container{padding-top:8px;padding-bottom:40px}
.article-card{
  background:#fff;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:44px 48px;
  margin-top:20px;
  border:1px solid var(--border-light);
}
.article-header{
  padding-bottom:24px;
  border-bottom:1px solid var(--border);
  margin-bottom:28px;
}
.article-title{
  font-size:30px;font-weight:700;line-height:1.4;
  color:var(--primary-dark);
  margin-bottom:16px;
  letter-spacing:.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:16px 24px;
  font-size:13px;color:var(--text-muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--accent);font-size:14px}
.article-cat{
  display:inline-block;
  background:var(--bg-blue);
  color:var(--primary);
  font-size:12px;font-weight:600;
  padding:3px 12px;
  border-radius:20px;
  margin-left:0;
}

/* == 正文排版 == */
.article-content{
  font-size:17px;line-height:1.9;
  color:var(--text-main);
}
.article-content p{margin-bottom:22px}
.article-content h2{
  font-size:24px;font-weight:700;color:var(--primary-dark);
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--accent);
  border-radius:0 4px 4px 0;
}
.article-content h3{
  font-size:19px;font-weight:600;color:var(--primary-dark);
  margin:32px 0 14px;
}
.article-content h4{
  font-size:17px;font-weight:600;color:var(--primary-dark);
  margin:24px 0 12px;
}
.article-content img{
  max-width:100%;height:auto;
  border-radius:12px;
  margin:24px 0;
  box-shadow:var(--shadow);
}
.article-content blockquote{
  border-left:4px solid var(--accent);
  background:var(--bg-light);
  padding:18px 22px;
  border-radius:0 10px 10px 0;
  margin:24px 0;
  color:var(--text-muted);
  font-size:15px;
  font-style:italic;
}
.article-content ul,.article-content ol{
  padding-left:22px;
  margin-bottom:22px;
}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:8px}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--accent)}
.article-content table{
  width:100%;margin:24px 0;
  border-collapse:collapse;
  font-size:14px;
}
.article-content th,.article-content td{
  border:1px solid var(--border);
  padding:10px 14px;
  text-align:left;
}
.article-content th{
  background:var(--bg-blue);
  color:var(--primary-dark);
  font-weight:600;
}
.article-content code{
  background:var(--bg-light);
  padding:2px 8px;
  border-radius:5px;
  font-size:14px;
  color:var(--accent);
}

/* 空态 */
.article-missing{
  text-align:center;
  padding:60px 20px;
}
.article-missing i{
  font-size:52px;color:var(--text-light);
  margin-bottom:18px;
}
.article-missing h2{
  font-size:24px;font-weight:700;color:var(--text-main);
  margin-bottom:10px;
}
.article-missing p{
  color:var(--text-muted);
  margin-bottom:24px;
  font-size:15px;
}

/* == 分页 == */
.article-pagination{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:24px;
}
.pagination-box{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:18px 22px;
  display:flex;
  align-items:center;
  gap:14px;
  transition:var(--transition);
  min-height:70px;
}
.pagination-box:hover{
  box-shadow:var(--shadow);
  border-color:var(--border);
  transform:translateY(-2px);
}
.pagination-box.text-end{flex-direction:row-reverse}
.pagination-icon{
  width:38px;height:38px;
  background:var(--bg-blue);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:15px;
  flex-shrink:0;
}
.pagination-label{
  font-size:12px;color:var(--text-light);
  text-transform:uppercase;
  letter-spacing:1px;
  margin-bottom:2px;
}
.pagination-text{
  font-size:15px;font-weight:600;color:var(--text-main);
}
.pagination-box:hover .pagination-icon{
  background:var(--accent);
  color:#fff;
}

/* == 相关推荐 == */
.related-posts{margin-top:48px}
.related-header{
  display:flex;align-items:center;gap:14px;
  margin-bottom:28px;
}
.related-line{
  width:4px;height:28px;
  background:var(--accent);
  border-radius:4px;
  flex-shrink:0;
}
.related-header h2{
  font-size:24px;font-weight:700;
  color:var(--primary-dark);
  margin:0;
}
.related-en{
  font-size:12px;font-weight:600;
  color:var(--text-light);
  letter-spacing:2px;
  text-transform:uppercase;
  margin-top:2px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.related-card{
  background:#fff;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:block;
  transition:var(--transition);
  border:1px solid var(--border-light);
  height:100%;
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--border);
}
.related-card-img{overflow:hidden}
.related-card-img img{
  width:100%;height:180px;
  object-fit:cover;
  transition:transform .4s ease;
}
.related-card:hover .related-card-img img{transform:scale(1.05)}
.related-card-body{padding:20px 22px 22px}
.related-card-body h3{
  font-size:16px;font-weight:600;
  color:var(--text-main);
  line-height:1.5;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card-body h3:hover{color:var(--primary)}
.related-card-date{
  font-size:13px;color:var(--text-light);
  display:flex;align-items:center;gap:6px;
}

/* == CTA 区域 == */
.article-cta{
  margin-top:48px;
  background:var(--bg-blue);
  border-radius:var(--radius);
  padding:36px 40px;
  text-align:center;
  border:1px solid var(--border);
}
.article-cta h3{
  font-size:22px;font-weight:700;
  color:var(--primary-dark);
  margin-bottom:10px;
}
.article-cta p{
  font-size:15px;color:var(--text-muted);
  margin-bottom:22px;
}
.article-cta .btn-group-simple{
  display:flex;gap:14px;justify-content:center;
  flex-wrap:wrap;
}

/* == Sticky CTA == */
.sticky-cta{
  position:fixed;bottom:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--border-light);
  box-shadow:0 -8px 30px rgba(28,50,80,.08);
  padding:10px 0;
}
.sticky-cta-inner{
  display:flex;justify-content:space-between;align-items:center;
  min-height:44px;
  gap:16px;
}
.sticky-text{
  font-size:15px;font-weight:600;
  color:var(--primary-dark);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.sticky-cta .btn{padding:8px 20px;font-size:14px;flex-shrink:0}

/* == Footer == */
.site-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,.7);
  padding:64px 0 0;
  margin-top:0;
}
.footer-brand-name{
  display:flex;align-items:center;gap:10px;
  font-size:22px;font-weight:700;color:#fff;
  margin-bottom:12px;
}
.footer-brand-name .brand-icon{
  width:38px;height:38px;font-size:16px;
  background:rgba(255,255,255,.15);
}
.footer-desc{
  font-size:14px;line-height:1.7;
  color:rgba(255,255,255,.55);
  margin-bottom:0;
}
.footer-title{
  font-size:16px;font-weight:600;color:#fff;
  margin-bottom:18px;
}
.footer-links li,.footer-contact li{margin-bottom:10px}
.footer-links a{
  color:rgba(255,255,255,.55);
  font-size:14px;
  text-decoration:none;
  transition:var(--transition);
}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.55);
}
.footer-contact i{color:var(--accent);width:16px;text-align:center;font-size:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  margin-top:48px;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.5);text-decoration:none}
.footer-bottom a:hover{color:#fff}

/* == 响应式 == */
@media(max-width:1199.98px){
  .article-title{font-size:26px}
  .related-grid{grid-template-columns:repeat(3,1fr);gap:20px}
}
@media(max-width:991.98px){
  .navbar-collapse{
    padding:16px 0;
    border-top:1px solid var(--border-light);
    margin-top:8px;
  }
  .nav-link{padding:12px 16px !important;font-size:15px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--bg-light)}
  .mega-panel{width:100%;max-width:100%;margin-top:8px !important}
  .mega-news-title{max-width:calc(100% - 80px)}
  .article-card{padding:32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .article-pagination{grid-template-columns:1fr}
  .pagination-box.text-end{flex-direction:row}
  .footer-top .col-lg-4{margin-bottom:32px}
  .footer-top .col-lg-4:last-child{margin-bottom:0}
}
@media(max-width:767.98px){
  .article-card{padding:20px}
  .article-title{font-size:22px}
  .article-meta{gap:12px 16px;font-size:12px}
  .article-content{font-size:16px;line-height:1.85}
  .article-content h2{font-size:21px}
  .article-content h3{font-size:17px}
  .related-grid{grid-template-columns:1fr}
  .sticky-text{max-width:140px;font-size:13px}
  .sticky-cta .btn{padding:8px 16px;font-size:13px}
  .article-cta{padding:28px 20px}
  .article-cta h3{font-size:19px}
  .site-footer{padding:48px 0 0}
  .footer-bottom{margin-top:32px}
}
@media(max-width:575.98px){
  .site-header .container{padding-left:16px;padding-right:16px}
  .breadcrumb-wrap{margin-top:16px}
  .article-container{padding-bottom:24px}
  .related-header h2{font-size:20px}
  .brand-text{font-size:18px}
  .brand-icon{width:36px;height:36px;font-size:15px}
  .sticky-text{max-width:110px}
  .sticky-cta-inner{gap:10px}
  .sticky-cta .btn{white-space:nowrap}
}

/* roulang page: category3 */
:root{
    --primary:#1F5C8B;
    --primary-dark:#173F61;
    --accent:#E8701A;
    --accent-dark:#D35F0C;
    --bg:#F4F7FB;
    --bg-blue:#EAF0F8;
    --white:#FFFFFF;
    --text:#243B53;
    --text-secondary:#64748B;
    --border:#D5E0EC;
    --radius:14px;
    --radius-sm:10px;
    --shadow:0 8px 30px rgba(28,50,80,0.06);
    --shadow-hover:0 16px 40px rgba(28,50,80,0.13);
    --spacer:64px;
    --font:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font);
    background:var(--bg);
    color:var(--text);
    line-height:1.7;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
ul{list-style:none;margin:0;padding:0}
.container{max-width:1280px}
.page-wrapper{padding-bottom:80px}
.section-pad{padding:64px 0}
@media (max-width:768px){.section-pad{padding:40px 0}}

/* ===== 按钮 ===== */
.btn{--bs-btn-focus-shadow:0 0 0 4px rgba(232,112,26,.18);border-radius:var(--radius-sm);font-weight:600;padding:10px 24px;transition:all .25s ease;font-size:15px}
.btn-primary{background:var(--accent);border-color:var(--accent)}
.btn-primary:hover,.btn-primary:focus{background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(232,112,26,.25)}
.btn-outline-secondary{background:transparent;border:1px solid #B8C8DE;color:var(--primary)}
.btn-outline-secondary:hover,.btn-outline-secondary:focus{background:var(--bg-blue);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(232,112,26,.5)}

/* ===== 导航 ===== */
.site-header{
    position:sticky;top:0;z-index:1050;background:var(--white);
    box-shadow:0 2px 16px rgba(28,50,80,.06);border-bottom:1px solid #EDF1F7;
}
.navbar{padding:0;min-height:72px}
.navbar-brand{display:flex;align-items:center;gap:10px;padding:10px 0;color:var(--primary-dark)!important}
.brand-icon{
    width:36px;height:36px;border-radius:10px;background:linear-gradient(145deg,#1F5C8B,#173F61);
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;flex-shrink:0;
}
.brand-text{font-size:22px;font-weight:700;letter-spacing:.5px;color:var(--primary-dark);white-space:nowrap}
.navbar-nav{gap:4px}
.navbar-nav .nav-link{
    font-size:15px;font-weight:500;color:var(--text);padding:22px 14px;
    position:relative;transition:color .2s ease;
}
.navbar-nav .nav-link::after{
    content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
    background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.navbar-nav .nav-link:hover{color:var(--primary-dark)}
.navbar-nav .nav-link:hover::after{transform:scaleX(1)}
.navbar-nav .nav-link.active{color:var(--primary-dark);font-weight:600}
.navbar-nav .nav-link.active::after{transform:scaleX(1)}
.navbar-toggler{border:1px solid var(--border);border-radius:8px;padding:4px 10px}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(31,92,139,.12)}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F5C8B' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}
.nav-cta{margin-left:12px}
.nav-cta .btn{padding:8px 20px;font-size:14px;white-space:nowrap}

/* Mega Panel */
.mega-panel{
    border:1px solid #EAF0F8;border-radius:16px;box-shadow:0 20px 50px rgba(28,50,80,.14);
    padding:26px;width:520px;background:var(--bg-blue);margin-top:6px;border-top:3px solid var(--accent);
}
.mega-panel .dropdown-menu{display:block}
.mega-panel.show{display:block}
.mega-panel::before{
    content:"";position:absolute;top:-9px;left:32px;width:16px;height:16px;
    background:var(--bg-blue);border-left:1px solid #EAF0F8;border-top:1px solid #EAF0F8;transform:rotate(45deg);
}
.mega-title{font-size:13px;font-weight:600;color:var(--text-secondary);letter-spacing:2px;text-transform:uppercase;margin-bottom:14px}
.mega-link{
    display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:10px;color:var(--text);
    font-size:14px;font-weight:500;margin-bottom:4px;transition:all .2s ease;
}
.mega-link i{color:var(--primary);width:18px;text-align:center}
.mega-link:hover{background:var(--white);color:var(--primary-dark);transform:translateX(4px);box-shadow:var(--shadow)}
.mega-news{
    display:block;padding:12px 14px;border-radius:10px;border-left:3px solid transparent;
    background:var(--white);margin-bottom:8px;transition:all .2s ease;
}
.mega-news:hover{border-left-color:var(--accent);transform:translateX(4px);box-shadow:var(--shadow)}
.mega-news-title{display:block;font-size:13px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:3px}
.mega-news-date{font-size:12px;color:var(--text-secondary)}
.mega-empty{font-size:13px;color:var(--text-secondary);background:var(--white);padding:14px;border-radius:10px;text-align:center}
.dropdown-menu{background:transparent;border:none;box-shadow:none}
@media (max-width:991px){
    .navbar{padding:10px 0}
    .navbar-collapse{background:var(--white);padding:16px;border-radius:0 0 16px 16px;box-shadow:0 12px 30px rgba(28,50,80,.08)}
    .navbar-nav .nav-link{padding:13px 12px;border-bottom:1px solid #F0F3F8}
    .navbar-nav .nav-link::after{display:none}
    .nav-cta{margin:12px 0 0;width:100%}
    .nav-cta .btn{width:100%}
    .mega-panel{width:100%;margin-top:8px}
}

/* ===== 分类 Hero ===== */
.category-hero{
    position:relative;padding:64px 0 56px;background:var(--bg);
    border-bottom:1px solid #EAF0F8;overflow:hidden;
}
.category-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    opacity:.18;pointer-events:none;
}
.category-hero::after{
    content:"";position:absolute;inset:0;background:linear-gradient(to right,rgba(255,255,255,.95),rgba(244,247,251,.88));pointer-events:none;
}
.category-hero .container{position:relative;z-index:2}
.hero-badge{
    display:inline-flex;align-items:center;gap:6px;background:rgba(232,112,26,.1);color:var(--accent);
    font-size:13px;font-weight:600;padding:5px 14px;border-radius:100px;margin-bottom:18px;
    border:1px solid rgba(232,112,26,.18);
}
.category-hero h1{
    font-size:34px;font-weight:800;color:var(--primary-dark);line-height:1.3;margin-bottom:14px;
    letter-spacing:.5px;
}
.hero-sub{font-size:17px;color:var(--text-secondary);max-width:560px;margin-bottom:26px;line-height:1.8}
.hero-meta{display:flex;gap:24px;flex-wrap:wrap;margin-top:24px}
.hero-meta-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text)}
.hero-meta-item i{color:var(--accent);font-size:16px}
.hero-img-wrap{
    background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px;
    max-width:420px;margin-left:auto;
}
.hero-img-wrap img{border-radius:10px;width:100%}
@media (max-width:991.98px){
    .category-hero{padding:44px 0 36px}
    .category-hero h1{font-size:28px}
    .hero-img-wrap{margin:28px auto 0}
}

/* ===== 通用区块标题 ===== */
.sec-head{margin-bottom:36px}
.sec-head .sec-label{
    display:block;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--text-secondary);
    text-transform:uppercase;margin-bottom:8px;
}
.sec-head h2{
    position:relative;font-size:26px;font-weight:700;color:var(--primary-dark);
    padding-left:16px;line-height:1.4;
}
.sec-head h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent);
}
.sec-head p{color:var(--text-secondary);font-size:15px;margin-top:10px;max-width:640px}

/* ===== 概述 ===== */
.overview-block{
    background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);
    padding:34px;margin-bottom:44px;transition:box-shadow .25s ease;
}
.overview-block:hover{box-shadow:var(--shadow-hover)}
.overview-text p{color:var(--text-secondary);font-size:15px;line-height:1.9;margin-bottom:14px}
.overview-points{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.overview-points li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--text)}
.overview-points li i{color:var(--accent);font-size:15px;margin-top:5px}
.overview-img img{border-radius:12px;width:100%;object-fit:cover;min-height:260px}
@media (max-width:991.98px){
    .overview-points{grid-template-columns:1fr}
}

/* ===== 特点卡片 ===== */
.features-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:48px}
.feature-card{
    background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);
    padding:30px;border:1px solid transparent;transition:all .25s ease;
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:#EAF0F8}
.feature-icon{
    width:52px;height:52px;border-radius:12px;background:var(--bg-blue);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px;
    transition:all .25s ease;
}
.feature-card:hover .feature-icon{background:var(--accent);color:#fff}
.feature-card h3{font-size:17px;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.8;margin:0}
@media (max-width:767.98px){.features-grid{grid-template-columns:1fr}}

/* ===== 服务流程 ===== */
.process-block{background:var(--bg-blue);border-radius:var(--radius);padding:40px;margin-bottom:48px}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.process-step{position:relative;text-align:center;padding:24px 12px 10px}
.process-step .step-num{
    font-size:32px;font-weight:800;color:rgba(31,92,139,.18);line-height:1;display:block;margin-bottom:10px;
}
.process-step .step-icon{
    width:54px;height:54px;border-radius:50%;background:var(--white);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:20px;margin:0 auto 14px;
    box-shadow:var(--shadow);transition:all .25s ease;
}
.process-step:hover .step-icon{background:var(--accent);color:#fff;transform:scale(1.06)}
.process-step h4{font-size:15px;font-weight:600;color:var(--primary-dark);margin-bottom:6px}
.process-step p{font-size:13px;color:var(--text-secondary);line-height:1.6;margin:0}
@media (max-width:991.98px){.process-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.process-grid{grid-template-columns:1fr}}

/* ===== FAQ ===== */
.faq-wrap{margin-bottom:48px}
.faq-accordion .accordion-item{
    border:1px solid #EAF0F8;border-radius:var(--radius)!important;margin-bottom:12px;
    background:var(--white);box-shadow:var(--shadow);overflow:hidden;
}
.faq-accordion .accordion-item:first-of-type,.faq-accordion .accordion-item:last-of-type{border-radius:var(--radius)!important}
.faq-accordion .accordion-header{background:transparent}
.faq-accordion .accordion-button{
    font-size:15px;font-weight:600;color:var(--text);background:var(--white);
    padding:18px 22px;box-shadow:none;border-top:3px solid transparent;transition:all .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){
    background:#F8FAFD;color:var(--primary-dark);border-top-color:var(--accent);box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none}
.faq-accordion .accordion-button::after{background-size:14px;opacity:.7}
.faq-accordion .accordion-body{
    font-size:15px;color:var(--text-secondary);line-height:1.8;padding:0 22px 20px;
}

/* ===== CTA Box ===== */
.cta-box{
    background:linear-gradient(145deg,#1F5C8B,#173F61);border-radius:var(--radius);
    padding:40px;color:#fff;text-align:center;position:relative;overflow:hidden;
}
.cta-box::before{
    content:"";position:absolute;top:-60px;right:-60px;width:180px;height:180px;border-radius:50%;
    background:rgba(255,255,255,.06);pointer-events:none;
}
.cta-box h3{font-size:24px;font-weight:700;margin-bottom:10px}
.cta-box p{font-size:15px;opacity:.85;margin-bottom:24px;max-width:480px;margin-left:auto;margin-right:auto}
.cta-box .btn-primary{background:var(--accent);border-color:var(--accent)}
.cta-box .btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.cta-box .btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff}
.cta-box .btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff}
@media (max-width:575.98px){
    .cta-box{padding:30px 18px}
    .cta-box h3{font-size:20px}
    .cta-box .btn{width:100%;margin-bottom:8px}
}

/* ===== 侧边栏 ===== */
.sidebar .side-card{
    background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);
    padding:28px;margin-bottom:26px;transition:box-shadow .25s ease;
}
.sidebar .side-card:hover{box-shadow:var(--shadow-hover)}
.side-card-title{
    font-size:16px;font-weight:700;color:var(--primary-dark);margin-bottom:18px;
    padding-bottom:12px;border-bottom:1px solid #F0F3F8;position:relative;
}
.side-card-title::after{content:"";position:absolute;left:0;bottom:-1px;width:36px;height:3px;background:var(--accent);border-radius:2px}
.side-cat-list li{margin-bottom:8px}
.side-cat-list a{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    padding:12px 16px;border-radius:10px;background:var(--bg-blue);color:var(--text);
    font-size:14px;font-weight:500;transition:all .2s ease;
}
.side-cat-list a:hover{background:var(--primary);color:#fff;transform:translateX(4px)}
.side-cat-list a i{font-size:18px;color:var(--accent);transition:color .2s}
.side-cat-list a:hover i{color:#fff}
.side-news-list li{padding:12px 0;border-bottom:1px solid #F0F3F8}
.side-news-list li:last-child{border-bottom:none}
.side-news-list a{display:block;font-size:14px;font-weight:500;color:var(--text);line-height:1.6;transition:color .2s}
.side-news-list a:hover{color:var(--accent)}
.side-news-list span{display:block;font-size:12px;color:var(--text-secondary);margin-top:4px}
.side-contact-list li{display:flex;align-items:flex-start;gap:12px;padding:10px 0;font-size:14px;color:var(--text)}
.side-contact-list li i{color:var(--accent);font-size:16px;margin-top:3px;width:18px}
.side-contact-list li small{display:block;color:var(--text-secondary);font-size:12px}

/* ===== 页脚 ===== */
.site-footer{background:#12263A;color:#A7B8CC;padding:56px 0 0;margin-top:64px}
.footer-top{border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:40px}
.footer-brand-name{display:flex;align-items:center;gap:10px;color:#fff;font-size:22px;font-weight:700;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;max-width:320px;margin-bottom:0}
.footer-title{font-size:14px;font-weight:600;color:#fff;letter-spacing:1px;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--accent)}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#A7B8CC;font-size:14px;transition:all .2s;display:inline-block}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:14px}
.footer-contact li i{color:var(--accent);margin-top:4px}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.06);padding:20px 0;text-align:center;
    font-size:13px;color:#7B8DA0;
}
.footer-bottom a{color:#A7B8CC}
.footer-bottom a:hover{color:#fff}
@media (max-width:767.98px){
    .site-footer{padding-top:40px;margin-top:40px}
}

/* ===== 内容区间距 ===== */
.main-content .content-block{margin-bottom:44px}
.sidebar .side-card{margin-bottom:24px}
@media (max-width:991.98px){
    .order-mobile-first{order:-1}
}

/* roulang page: category2 */
:root {
  --primary: #1F5C8B;
  --primary-dark: #12263A;
  --accent: #E8701A;
  --accent-dark: #D35F0C;
  --bg-light: #F4F7FB;
  --bg-blue: #EAF0F8;
  --text-main: #20344B;
  --text-muted: #6B7D95;
  --border: #D5E0EC;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(28,50,80,0.06);
  --shadow-hover: 0 16px 40px rgba(28,50,80,0.13);
  --transition: all 0.25s ease;
}

* { 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(--bg-light);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.7;
  padding-bottom: 0;
}
a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; }
.container { max-width: 1280px; }

/* ===== Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: 0 2px 20px rgba(18,38,58,0.06);
  border-bottom: 1px solid #EEF2F7;
}
.site-header .navbar {
  min-height: 72px;
  padding: 10px 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, #F99A3E 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(232,112,26,0.25);
}
.brand-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
}
.navbar-nav { gap: 4px; align-items: center; }
.navbar-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}
.navbar-nav .nav-link:hover {
  color: var(--primary);
  background: rgba(31,92,139,0.06);
}
.navbar-nav .nav-link.active {
  color: var(--accent);
  font-weight: 600;
}
.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.navbar-toggler {
  border: none;
  padding: 6px 10px;
  border-radius: 8px;
}
.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(31,92,139,0.15);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2312263A' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  width: 26px;
  height: 26px;
}
.nav-cta-btn {
  margin-left: 16px;
}
.nav-cta-btn .btn {
  padding: 8px 22px;
  font-size: 14px;
  white-space: nowrap;
}

/* Mega Dropdown */
.mega-panel {
  width: 680px;
  max-width: 90vw;
  border: none;
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(18,38,58,0.18);
  background: #F7FAFD;
  padding: 24px;
  margin-top: 10px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.mega-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.mega-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  transition: var(--transition);
}
.mega-link i {
  width: 22px;
  color: var(--accent);
  font-size: 14px;
}
.mega-link:hover {
  background: var(--white);
  color: var(--primary);
  transform: translateX(3px);
}
.mega-news {
  display: block;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--white);
  margin-bottom: 8px;
  border: 1px solid #EEF2F7;
  transition: var(--transition);
}
.mega-news:hover {
  border-color: #D5E0EC;
  transform: translateX(3px);
  box-shadow: 0 4px 14px rgba(28,50,80,0.06);
}
.mega-news-title {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mega-news-date {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Buttons ===== */
.btn {
  border-radius: 10px;
  font-weight: 600;
  padding: 10px 24px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232,112,26,0.25);
}
.btn-outline-custom {
  background: transparent;
  border: 1px solid #B8C8DE;
  color: var(--primary);
}
.btn-outline-custom:hover {
  border-color: var(--primary);
  background: rgba(31,92,139,0.06);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-lg { padding: 13px 32px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn:focus-visible {
  outline: 2px solid rgba(232,112,26,.5);
  outline-offset: 2px;
}

/* ===== Section Header ===== */
.section-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}
.section-bar {
  width: 4px;
  height: 30px;
  border-radius: 4px;
  background: var(--accent);
  flex-shrink: 0;
}
.section-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0;
  line-height: 1.3;
}
.section-sub {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  display: block;
  margin-top: 2px;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  background: rgba(232,112,26,0.1);
  padding: 5px 14px;
  border-radius: 30px;
  margin-bottom: 18px;
}

/* ===== Category Hero ===== */
.cat-hero {
  background: linear-gradient(135deg, #F0F5FB 0%, #E3ECF5 60%, #DCE7F2 100%);
  padding: 72px 0 60px;
  position: relative;
  overflow: hidden;
}
.cat-hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(31,92,139,0.05);
}
.cat-hero h1 {
  font-size: 38px;
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}
.cat-hero h1 .text-accent { color: var(--accent); }
.cat-hero-desc {
  font-size: 17px;
  color: var(--text-main);
  max-width: 520px;
  margin-bottom: 26px;
  line-height: 1.8;
}
.cat-hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.cat-hero-tags {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.tag-item {
  font-size: 14px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tag-item i {
  color: var(--accent);
  font-size: 13px;
}
.cat-hero-img {
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(18,38,58,0.18);
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border: 4px solid var(--white);
}

/* ===== Category Main Layout ===== */
.category-main {
  padding: 64px 0 80px;
}
.cat-section {
  margin-bottom: 56px;
}
.cat-lead-text {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-main);
  margin-bottom: 18px;
}
.cat-lead-text strong { color: var(--primary); }

/* Metric Box */
.metric-box {
  background: var(--bg-blue);
  border-radius: 14px;
  padding: 20px 16px;
  text-align: center;
  border: 1px solid rgba(31,92,139,0.06);
  transition: var(--transition);
}
.metric-box:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.metric-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 4px;
}
.metric-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* Overview Image */
.overview-img {
  border-radius: 16px;
  box-shadow: var(--shadow);
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 240px;
}

/* Feature Cards */
.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid #EEF2F7;
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #D5E0EC;
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(232,112,26,0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

/* Workflow */
.workflow-steps {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.workflow-item {
  flex: 1;
  min-width: 140px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 20px;
  border: 1px solid #EEF2F7;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.workflow-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.workflow-num {
  font-size: 32px;
  font-weight: 800;
  color: rgba(232,112,26,0.25);
  line-height: 1;
  margin-bottom: 10px;
}
.workflow-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.workflow-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Scenario Cards */
.scenario-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
}
.scenario-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}
.scenario-card i {
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 14px;
}
.scenario-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.scenario-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

/* FAQ */
.accordion-item {
  border: 1px solid #EEF2F7;
  border-radius: 12px !important;
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--white);
}
.accordion-button {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-dark);
  padding: 18px 22px;
  background: var(--white);
  border: none;
  transition: var(--transition);
}
.accordion-button:not(.collapsed) {
  background: #F8FAFD;
  color: var(--primary);
  box-shadow: inset 0 3px 0 var(--accent);
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(31,92,139,0.12);
}
.accordion-body {
  padding: 6px 22px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
  border-top: 1px solid #F0F3F8;
}

/* CTA */
.cat-cta {
  background: linear-gradient(135deg, #12263A 0%, #1F4668 100%);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cat-cta::before {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  top: -70px;
  left: -70px;
}
.cat-cta::after {
  content: '';
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(232,112,26,0.15);
  bottom: -40px;
  right: -20px;
}
.cat-cta h2 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.cat-cta p {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}
.cat-cta .btn-accent {
  position: relative;
  z-index: 1;
  padding: 13px 36px;
  font-size: 16px;
}
.cat-cta .btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.5);
  color: #fff;
  position: relative;
  z-index: 1;
  margin-left: 10px;
}
.cat-cta .btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

/* ===== Sidebar ===== */
.sidebar {
  position: sticky;
  top: 96px;
}
.side-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  border: 1px solid #EEF2F7;
}
.side-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bg-blue);
}
.side-cat-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #F8FAFD;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  transition: var(--transition);
}
.side-cat-link i {
  color: var(--accent);
  width: 20px;
  font-size: 15px;
}
.side-cat-link:hover {
  background: var(--bg-blue);
  color: var(--primary);
  transform: translateX(3px);
}
.side-news-item {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid #F0F3F8;
  transition: var(--transition);
}
.side-news-item:last-child { border-bottom: none; }
.side-news-item:hover {
  padding-left: 6px;
}
.side-news-title {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 4px;
}
.side-news-date {
  font-size: 12px;
  color: #9AAABC;
}
.side-contact p {
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-contact p i {
  color: var(--accent);
  width: 20px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  padding: 56px 0 0;
  color: rgba(255,255,255,0.7);
}
.footer-top { padding-bottom: 40px; }
.footer-brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.footer-brand-name .brand-icon {
  background: var(--accent);
  box-shadow: none;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 280px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-contact li {
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.6);
}
.footer-contact i {
  color: var(--accent);
  width: 18px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a {
  color: rgba(255,255,255,0.7);
}
.footer-bottom a:hover { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .cat-hero h1 { font-size: 34px; }
  .workflow-steps { gap: 12px; }
  .workflow-item { min-width: 120px; padding: 20px 14px; }
}

@media (max-width: 991.98px) {
  .cat-hero { padding: 48px 0 40px; }
  .cat-hero h1 { font-size: 30px; }
  .navbar-nav {
    padding: 12px 0;
  }
  .navbar-nav .nav-link { padding: 10px 16px; }
  .mega-panel { width: 100%; box-shadow: none; margin-top: 0; border-radius: 10px; }
  .nav-cta-btn { margin: 10px 0 0; }
  .sidebar { position: static; margin-top: 40px; }
  .overview-img { min-height: 200px; }
}

@media (max-width: 767.98px) {
  .cat-hero h1 { font-size: 26px; }
  .cat-hero-desc { font-size: 15px; }
  .section-header h2 { font-size: 22px; }
  .cat-cta { padding: 36px 24px; }
  .cat-cta h2 { font-size: 22px; }
  .cat-cta .btn-outline-light { margin-left: 0; margin-top: 10px; }
  .category-main { padding: 40px 0 56px; }
  .cat-section { margin-bottom: 40px; }
  .footer-top { gap: 32px; }
  .metric-num { font-size: 22px; }
  .brand-text { font-size: 19px; }
}

@media (max-width: 575.98px) {
  .cat-hero { padding: 36px 0 32px; }
  .cat-hero-actions .btn { width: 100%; }
  .cat-hero-tags { flex-direction: column; gap: 8px; }
  .feature-card { padding: 20px; }
  .workflow-item { min-width: 100%; }
  .cat-cta { padding: 28px 20px; }
  .cat-cta .btn-accent { width: 100%; }
  .mega-panel { padding: 16px; }
}