/* roulang page: index */
:root {
  --bg-body: #F4F7FA;
  --bg-surface: #FFFFFF;
  --bg-soft: #F9FBFD;
  --bg-deep: #0A2536;
  --primary: #0E3A5D;
  --primary-hover: #134B78;
  --secondary: #E8563A;
  --secondary-hover: #C9432B;
  --accent-teal: #0E8F8B;
  --text-heading: #122A3A;
  --text-body: #5A6B7A;
  --text-muted: #8B98A5;
  --border: #E2E9F0;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-xs: 0 1px 2px rgba(14,58,93,.05);
  --shadow-md: 0 8px 24px rgba(14,58,93,.08);
  --shadow-lg: 0 18px 45px rgba(14,58,93,.12);
  --space-section: 96px;
  --space-block: 32px;
  --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num: "Inter","Arial",sans-serif;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
*, *::before, *::after { box-sizing: border-box; }
h1,h2,h3,h4,h5,h6 {
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: .5px;
  line-height: 1.3;
}
h1 { font-size: clamp(32px,4vw,44px); }
h2 { font-size: clamp(26px,2.6vw,34px); margin-bottom: 16px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
p { margin-bottom: 1rem; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
a:hover { color: var(--secondary); text-decoration: none; }
img { max-width: 100%; }
.container { max-width: 1200px; }
section { padding: var(--space-section) 0; position: relative; }
.row { --bs-gutter-x: 32px; }

.text-primary-brand { color: var(--primary) !important; }
.text-secondary-brand { color: var(--secondary) !important; }
.text-teal-brand { color: var(--accent-teal) !important; }
.text-body-muted { color: var(--text-muted) !important; }
.bg-surface { background: var(--bg-surface); }
.bg-soft { background: var(--bg-soft); }
.border-light { border-color: var(--border) !important; }
.shadow-md { box-shadow: var(--shadow-md); }
.radius { border-radius: var(--radius); }

.btn {
  height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  transition: all .22s ease;
  white-space: nowrap;
  font-size: 15px;
  letter-spacing: .3px;
}
.btn-lg { height: 50px; padding: 0 32px; font-size: 16px; }
.btn-brand {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-brand:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  box-shadow: 0 6px 18px rgba(14,58,93,.22);
  transform: translateY(-2px);
}
.btn-outline-brand {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-brand:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(14,58,93,.16);
}
.btn-secondary-brand {
  background: var(--secondary);
  color: #fff;
  border-color: var(--secondary);
}
.btn-secondary-brand:hover {
  background: var(--secondary-hover);
  border-color: var(--secondary-hover);
  color: #fff;
  box-shadow: 0 6px 18px rgba(232,86,58,.2);
  transform: translateY(-2px);
}
.btn-outline-light-brand {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.55);
}
.btn-outline-light-brand:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.badge-pill-custom {
  display: inline-block;
  background: rgba(14,143,139,.1);
  color: var(--accent-teal);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
}
.badge-pill-orange {
  background: rgba(232,86,58,.1);
  color: var(--secondary);
}

/* Header */
.header-main {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}
.header-main .navbar { padding: 0; min-height: 68px; }
.header-main .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}
.brand-mark {
  width: 40px; height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  flex: none;
}
.brand-name { font-weight: 700; font-size: 20px; color: var(--text-heading); line-height: 1.2; }
.brand-name span { color: var(--secondary); }
.brand-sub { font-size: 11px; color: var(--text-muted); display: block; line-height: 1.2; }
.navbar-main .nav-link {
  color: var(--text-body);
  font-weight: 500;
  padding: 28px 16px !important;
  font-size: 15px;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.navbar-main .nav-link:hover { color: var(--primary); border-bottom-color: var(--secondary); }
.navbar-main .nav-item.active .nav-link { color: var(--primary); border-bottom-color: var(--primary); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { height: 40px; font-size: 14px; padding: 0 20px; }
.navbar-toggler { border: 1px solid var(--primary); border-radius: 6px; color: var(--primary); }
.navbar-toggler:focus { box-shadow: 0 0 0 4px rgba(14,58,93,.15); }

/* Hero */
.hero-section {
  padding: 72px 0 64px;
  background: var(--bg-body);
  overflow: hidden;
  position: relative;
}
.hero-section .hero-grid { display: flex; gap: 56px; align-items: center; }
.hero-copy { flex: 1.05; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 7px 16px; font-size: 13px; color: var(--primary); font-weight: 500; box-shadow: var(--shadow-xs); margin-bottom: 24px; }
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-teal); }
.hero-copy h1 { margin-bottom: 18px; font-weight: 800; }
.hero-copy h1 .hl { color: var(--secondary); }
.hero-copy p.lead-summary { font-size: 17px; line-height: 1.8; color: var(--text-body); max-width: 560px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual { flex: 0 0 460px; position: relative; }
.hero-visual .frame { border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-lg); border: 4px solid #fff; }
.hero-visual .frame img { display: block; width: 100%; height: 360px; object-fit: cover; }
.hero-metrics { display: flex; margin-top: 56px; gap: 0; width: 100%; border-top: 1px solid var(--border); padding-top: 32px; }
.metric-block { display: flex; flex-direction: column; gap: 4px; flex: 0 0 auto; padding-right: 48px; border-right: 1px solid var(--border); margin-right: 48px; }
.metric-block:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.metric-num { font-family: var(--font-num); font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.metric-num small { font-size: 16px; font-weight: 600; color: var(--secondary); }
.metric-label-block { font-size: 14px; color: var(--text-muted); }
.metric-label-block strong { display: block; color: var(--text-heading); font-size: 14px; }

/* Section header */
.section-head { margin-bottom: 44px; }
.section-head .subtitle { font-size: 15px; color: var(--secondary); font-weight: 600; display: flex; align-items: center; gap: 8px; margin-bottom: 10px; text-transform: none; }
.section-head .subtitle::before { content: ""; width: 24px; height: 3px; background: var(--secondary); border-radius: 3px; display: inline-block; }
.section-head h2 { margin-bottom: 10px; }
.section-head .lead-text { font-size: 16px; max-width: 640px; color: var(--text-body); }

/* Services section */
.services-section { background: var(--bg-surface); }
.service-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-block); }
.service-card-wide { grid-column: 1 / -1; }
.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 34px;
  display: flex;
  gap: 20px;
  position: relative;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.service-card:hover { box-shadow: var(--shadow-md); border-color: rgba(232,86,58,.3); transform: translateY(-3px); }
.service-card .service-index { position: absolute; right: 22px; top: 20px; font-size: 44px; font-weight: 800; color: rgba(232,86,58,.09); font-family: var(--font-num); line-height: 1; }
.service-icon { width: 52px; height: 52px; flex: none; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(14,58,93,.06); color: var(--primary); font-size: 22px; }
.service-icon.teal { background: rgba(14,143,139,.1); color: var(--accent-teal); }
.service-body { flex: 1; }
.service-body h3 { font-size: 19px; margin-bottom: 8px; }
.service-desc { font-size: 15px; color: var(--text-body); line-height: 1.75; }
.service-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; }
.service-card-wide .wide-inner { display: flex; align-items: center; gap: 36px; width: 100%; }
.service-card-wide .service-icon { width: 80px; height: 80px; font-size: 32px; }
.service-card-wide .service-body { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; }
.wide-desc { max-width: 620px; }

/* Data band */
.data-section { background: var(--bg-deep); }
.data-section .section-head .subtitle { color: #FFB4A1; }
.data-section .section-head .subtitle::before { background: var(--secondary); }
.data-section .section-head h2 { color: #fff; }
.data-section .section-head .lead-text { color: rgba(255,255,255,.65); }
.data-band { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.data-cell { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.06); border-radius: var(--radius); padding: 32px 26px; transition: background .3s, transform .3s; }
.data-cell:hover { background: rgba(255,255,255,.08); transform: translateY(-4px); }
.data-cell .number { font-family: var(--font-num); font-size: 44px; font-weight: 800; color: #fff; line-height: 1.1; letter-spacing: -1px; }
.data-cell .number em { font-style: normal; color: var(--secondary); font-size: 26px; }
.data-cell .tag-label { margin-top: 10px; color: rgba(255,255,255,.75); font-weight: 600; font-size: 15px; }
.data-cell .desc { font-size: 13px; color: rgba(255,255,255,.45); margin-top: 4px; }

/* Cases */
.cases-section { background: var(--bg-surface); }
.case-feature { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; margin-bottom: 64px; }
.case-feature:nth-child(even){ grid-template-columns: 1fr 1.2fr; }
.case-feature .case-img { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-md); height: 340px; }
.case-feature .case-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.case-feature:hover .case-img img { transform: scale(1.03); }
.case-feature .case-content .case-tag { font-size: 13px; background: rgba(232,86,58,.1); color: var(--secondary); padding: 4px 14px; border-radius: var(--radius-pill); font-weight: 600; display: inline-block; margin-bottom: 16px; }
.case-feature .case-content h3 { font-size: 24px; margin-bottom: 12px; }
.case-feature .case-content p { font-size: 15px; }
.all-case-link { text-align: center; margin-top: 24px; font-weight: 600; }

/* News / CMS */
.news-section { background: var(--bg-soft); }
.news-section .section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; }
.news-list-area { display: grid; grid-template-columns: 1fr 320px; gap: 32px; }
.news-cards { display: flex; flex-direction: column; gap: 18px; }
.news-card { background: var(--bg-surface); border: 1px solid var(--border); border-left: 3px solid var(--primary); border-radius: 10px; padding: 24px 26px; transition: box-shadow .25s, transform .2s; }
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.news-card .meta-row { display: flex; gap: 14px; align-items: center; font-size: 13px; color: var(--text-muted); margin-bottom: 10px; flex-wrap: wrap; }
.news-card .badge-tag { background: rgba(14,143,139,.1); color: var(--accent-teal); padding: 3px 12px; border-radius: var(--radius-pill); font-weight: 600; }
.news-card .card-title { display: block; font-size: 18px; font-weight: 700; color: var(--text-heading); margin-bottom: 8px; text-decoration: none; }
.news-card .card-title:hover { color: var(--secondary); }
.news-card .card-excerpt { font-size: 15px; color: var(--text-body); line-height: 1.7; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more-link { font-size: 13px; font-weight: 600; }
.news-sidebar { display: flex; flex-direction: column; gap: 20px; }
.news-side-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; border-top: 3px solid var(--secondary); }
.news-side-card h4 { font-size: 17px; }
.empty-news { background: var(--bg-surface); border: 1px dashed var(--border); color: var(--text-muted); border-radius: var(--radius); padding: 28px; text-align: center; font-size: 15px; }

/* solution reset */
.solution-section { background: var(--bg-surface); }
.solution-wrapper { display: grid; grid-template-columns: 300px 1fr; gap: 48px; }
.solution-tabs { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); }
.solution-tab-btn { display: block; padding: 20px 24px; border: none; background: transparent; border-left: 3px solid transparent; border-bottom: 1px solid var(--border); text-align: left; font-size: 16px; font-weight: 600; color: var(--text-body); cursor: pointer; transition: all .2s ease; width: 100%; }
.solution-tab-btn:last-child { border-bottom: none; }
.solution-tab-btn:hover { background: #fff; color: var(--primary); }
.solution-tab-btn.active { background: #fff; color: var(--primary); border-left-color: var(--secondary); }
.solution-panel { display: none; }
.solution-panel.active { display: block; }
.slot-demo { border: 2px dashed var(--border); border-radius: var(--radius); padding: 12px; }
.solution-panel h3 { font-size: 24px; margin-bottom: 12px; }
.solution-desc-text { margin-bottom: 24px; }
.solution-points { list-style: none; padding: 0; margin-bottom: 28px; }
.solution-points li { position: relative; color: var(--text-body); font-size: 15px; display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.solution-points li::before { content: "\f058"; font-family: "Font Awesome 6 Free"; font-weight: 400; color: var(--secondary); flex: none; margin-top: 2px; }

/* FAQ */
.faq-section { background: var(--bg-soft); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 28px; }
.faq-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 30px; transition: border-color .2s, transform .2s, box-shadow .2s; }
.faq-card:hover { border-color: rgba(232,86,58,.25); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.faq-card .faq-q { font-weight: 700; font-size: 17px; color: var(--text-heading); margin-bottom: 8px; display: flex; align-items: flex-start; gap: 8px; }
.faq-card .faq-q .q-icon { color: var(--accent-teal); margin-top: 2px; }
.faq-card .faq-a { font-size: 15px; color: var(--text-body); line-height: 1.7; }

/* CTA */
.cta-block { background: var(--bg-body); padding: 0 0 var(--space-section); }
.cta-inner { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-lg); border-radius: 20px; padding: 56px 60px; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-inner .cta-copy h2 { margin-bottom: 8px; }
.cta-inner .cta-copy p { margin-bottom: 0; color: var(--text-body); max-width: 520px; }
.contact-bar { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 32px; font-size: 14px; color: var(--text-muted); }
.contact-bar span { display: flex; align-items: center; gap: 6px; }

/* Footer */
.footer { background: var(--bg-deep); }
.footer-main { padding: 56px 0 32px; }
.footer-brand { color: #fff; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer h5 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255,255,255,.52); font-size: 14px; transition: .2s ease; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-copyright { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; font-size: 13px; color: rgba(255,255,255,.3); }
.footer-bottom-row { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer p.text-light-50 { color: rgba(255,255,255,.5); font-size: 14px; }

/* backtop */
.back-top { position: fixed; right: 18px; bottom: 18px; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--primary); color: #fff; border-radius: 10px; }
.back-top:hover { background: var(--secondary); color: #fff; }

:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }

@media (max-width: 1024px) {
  .hero-visual { flex: 0 0 380px; }
  :root { --space-section: 80px; }
  .data-band { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 992px) {
  .header-main .navbar-collapse { background:#fff; border-top:1px solid var(--border); margin-top:0; box-shadow: var(--shadow-md); }
  .navbar-main .nav-link { padding: 14px 12px !important; border-bottom: 1px solid var(--border); border-left: 3px solid transparent; }
  .navbar-main .nav-item.active .nav-link { border-left-color: var(--secondary); border-bottom-color: var(--border); color: var(--primary); background: rgba(14,58,93,.03); }
  .header-cta { padding: 8px 12px 16px; }
  .hero-grid { flex-direction: column-reverse; }
  .hero-visual { flex-basis: auto; width: 100%; }
  .hero-metrics { flex-wrap: wrap; gap: 24px; }
  .metric-block { border: none; padding: 0; flex: 0 0 45%; margin:0; }
  .service-card-grid { grid-template-columns: 1fr; }
  .case-feature, .case-feature:nth-child(even) { grid-template-columns: 1fr; gap: 24px; }
  .case-feature .case-img { height: 260px; }
  .news-list-area { grid-template-columns: 1fr; }
  .solution-wrapper { grid-template-columns: 1fr; gap: 20px; }
  .solution-tabs { flex-direction: row; overflow-x: auto; border: none; background: transparent; }
  .solution-tab-btn { background: var(--bg-soft); border-radius: var(--radius-sm); border: 1px solid var(--border); margin-right: 8px; white-space: nowrap; width: auto; padding: 14px 20px; }
  .solution-tab-btn.active { background: var(--primary); color: #fff; border-left-color: var(--primary); }
  .faq-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .row { --bs-gutter-x: 16px; }
  .service-card { padding: 24px 20px; }
  .service-card-wide .wide-inner { flex-direction: column; }
  .cta-inner { padding: 36px 28px; }
  .hero-copy p.lead-summary { font-size: 16px; }
  .metric-num { font-size: 26px; }
  .footer-main .row > div { margin-bottom: 32px; }
}
@media (max-width: 576px) {
  .container { padding-left: 20px; padding-right: 20px; }
  h1 { font-size: 32px; }
  .hero-actions .btn { width: 100%; max-width: 340px; }
  .metric-block { flex: 0 0 100%; margin-bottom: 20px; }
  .news-section .section-head { flex-direction: column; gap: 12px; align-items: flex-start; }
  .faq-card .faq-q { font-size: 16px; }
  .btn { padding: 0 20px; }
}

/* roulang page: article */
:root {
  --bg-body: #F4F7FA;
  --bg-surface: #FFFFFF;
  --primary: #0E3A5D;
  --primary-hover: #134B78;
  --secondary: #E8563A;
  --secondary-hover: #C9432B;
  --accent-teal: #0E8F8B;
  --text-main: #122A3A;
  --text-body: #5A6B7A;
  --text-aux: #8B98A5;
  --border: #E2E9F0;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-img: 10px;
  --shadow-xs: 0 1px 2px rgba(14, 58, 93, .05);
  --shadow-md: 0 8px 24px rgba(14, 58, 93, .08);
  --shadow-lg: 0 18px 45px rgba(14, 58, 93, .12);
  --transition: all .22s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.7;
  -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(--secondary); }
h1, h2, h3, h4, h5 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 .5em;
}
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.btn {
  border-radius: var(--radius-btn);
  font-weight: 500;
  height: 44px;
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  letter-spacing: .2px;
}
.btn:focus-visible,
.btn-ghost:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
.btn-sm {
  height: 36px;
  padding: 0 20px;
  border-radius: 6px;
}
.btn-primary,
.btn-brand {
  background: var(--primary);
  border: 1px solid var(--primary);
  color: #fff;
}
.btn-primary:hover,
.btn-brand:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  box-shadow: 0 8px 20px rgba(14, 58, 93, .18);
  transform: translateY(-1px);
}
.btn-accent {
  background: var(--secondary);
  border: 1px solid var(--secondary);
  color: #fff;
}
.btn-accent:hover {
  background: var(--secondary-hover);
  border-color: var(--secondary-hover);
  color: #fff;
  box-shadow: 0 8px 22px rgba(232, 86, 58, .25);
  transform: translateY(-2px);
}
.btn-outline-brand {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-outline-brand:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .7);
  color: #fff;
}
.btn-outline-light:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}
@media (min-width: 1400px) {
  .container {
    max-width: 1200px;
  }
}

/* Header & Nav */
.header-main {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 233, 240, .9);
  box-shadow: var(--shadow-xs);
}
.navbar {
  min-height: 68px;
  padding-top: 10px;
  padding-bottom: 10px;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 24px;
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 11px;
  font-size: 18px;
  box-shadow: 0 4px 10px rgba(14, 58, 93, .16);
}
.brand-name {
  display: block;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .6px;
  color: var(--text-main);
  line-height: 1.25;
}
.brand-name span { color: var(--secondary); }
.brand-sub {
  display: block;
  font-size: 11px;
  letter-spacing: .4px;
  color: var(--text-aux);
  margin-top: 1px;
}
.navbar-light .navbar-toggler {
  color: var(--primary);
  border-color: transparent;
  font-size: 24px;
  padding: 6px 8px;
  outline: none;
}
.navbar-light .navbar-toggler:hover {
  color: var(--secondary);
}
.navbar-main .nav-item {
  margin: 0 4px;
}
.navbar-main .nav-link {
  color: var(--text-body);
  font-weight: 500;
  padding: 10px 14px !important;
  border-radius: 8px;
  position: relative;
  font-size: 15px;
  transition: var(--transition);
}
.navbar-main .nav-link:hover {
  color: var(--primary);
  background: rgba(14, 58, 93, .06);
}
.navbar-main .nav-item.active .nav-link {
  color: var(--primary);
  background: rgba(14, 58, 93, .06);
  font-weight: 600;
}
.navbar-main .nav-item.active .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 4px;
  background: var(--secondary);
}
.header-cta .btn {
  white-space: nowrap;
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 16px;
    margin-top: 12px;
  }
  .navbar-main .nav-item {
    margin: 4px 0;
  }
  .navbar-main .nav-link {
    padding: 12px 14px !important;
  }
  .header-cta {
    margin: 10px 0 0;
  }
  .navbar-brand .brand-sub {
    display: none;
  }
}
@media (max-width: 575.98px) {
  .brand-name {
    font-size: 18px;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
    font-size: 16px;
  }
}

/* Page Article */
.page-article {
  padding: 42px 0 90px;
  background: var(--bg-body);
}
.article-layout {
  align-items: flex-start;
}
.breadcrumb-nav {
  padding: 0 0 20px;
}
.breadcrumb-nav .breadcrumb {
  margin-bottom: 0;
  font-size: 14px;
  --bs-breadcrumb-divider: "/";
}
.breadcrumb-nav .breadcrumb a {
  color: var(--text-aux);
}
.breadcrumb-nav .breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb-nav .breadcrumb-item.active {
  color: var(--text-main);
  font-weight: 500;
}
.article-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.article-header {
  padding: 44px 48px 8px;
}
.article-headline {
  margin: 14px 0 0;
}
.article-headline .article-title {
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: .3px;
  margin: 0;
}
.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  color: var(--text-aux);
  font-size: 14px;
  padding-top: 18px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-aux);
}
.meta-item a {
  color: var(--text-aux);
}
.meta-item a:hover {
  color: var(--secondary);
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  background: rgba(14, 143, 139, .1);
  color: var(--accent-teal);
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  padding: 3px 12px;
}
.tag-chip:hover {
  color: #fff;
  background: var(--accent-teal);
}
.article-cover-wrap {
  padding: 28px 48px 4px;
}
.article-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: var(--shadow-md);
}
.article-body {
  padding: 36px 48px 44px;
  font-size: 17px;
  line-height: 2;
  color: var(--text-body);
}
.article-body > * + * {
  margin-top: 1.05em;
}
.article-body h2 {
  font-size: 26px;
  color: var(--text-main);
  font-weight: 700;
  margin-top: 1.7em;
  margin-bottom: .6em;
  position: relative;
  padding-left: 18px;
}
.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .22em;
  width: 5px;
  height: .78em;
  border-radius: 99px;
  background: var(--secondary);
}
.article-body h3 {
  font-size: 21px;
  color: var(--text-main);
  font-weight: 700;
  margin-top: 1.5em;
  margin-bottom: .5em;
}
.article-body p {
  margin: 0;
  color: var(--text-body);
  word-break: break-word;
}
.article-body ul,
.article-body ol {
  padding-left: 1.3em;
  list-style: initial;
}
.article-body li {
  margin-bottom: .35em;
}
.article-body a {
  color: var(--secondary);
  border-bottom: 1px solid rgba(232, 86, 58, .2);
}
.article-body a:hover {
  border-bottom-color: var(--secondary);
}
.article-body blockquote {
  background: #F1F6FA;
  border-left: 4px solid var(--accent-teal);
  border-radius: 0 10px 10px 0;
  color: var(--text-body);
  padding: 18px 24px;
  margin: 1.6em 0;
  font-size: 16px;
}
.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin: 1.4em 0;
}
.article-body pre,
.article-body code {
  background: #F1F6FA;
  color: var(--primary);
  border-radius: 6px;
  font-size: .92em;
}
.article-body pre {
  padding: 20px;
  overflow: auto;
}
.article-body pre code {
  background: transparent;
  padding: 0;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
}
.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  font-size: 15px;
}
.article-body th {
  background: var(--primary);
  color: #fff;
}
.article-toolbar {
  margin-top: 12px;
  padding: 18px 24px;
  background: #F8FBFD;
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}
.toolbar-line {
  font-size: 14px;
  color: var(--text-aux);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.toolbar-line i {
  color: var(--secondary);
}
@media (max-width: 767.98px) {
  .article-wrap {
    border-radius: 14px;
  }
  .article-header {
    padding: 28px 20px 0;
  }
  .article-cover-wrap {
    padding-left: 20px;
    padding-right: 20px;
  }
  .article-body {
    padding: 28px 20px 34px;
    font-size: 16px;
  }
  .article-toolbar {
    padding: 16px;
  }
}
@media (min-width: 768px) and (max-width: 991.98px) {
  .article-header {
    padding: 32px 28px 0;
  }
  .article-cover-wrap {
    padding-left: 28px;
    padding-right: 28px;
  }
  .article-body {
    padding: 30px 28px 36px;
  }
}

/* Article Sidebar */
.article-aside {
  padding-left: 12px;
}
.aside-inner {
  position: sticky;
  top: 96px;
}
.side-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-xs);
}
.side-card h5 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card h5 i {
  color: var(--secondary);
}
.side-meta-list li {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 14px;
  border-bottom: 1px dashed #EDF1F6;
}
.side-meta-list li:last-child {
  border-bottom: none;
}
.side-meta-list span {
  color: var(--text-aux);
  white-space: nowrap;
}
.side-meta-list strong {
  color: var(--text-main);
  font-weight: 600;
  text-align: right;
}
.side-link-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.side-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #F8FBFD;
  border: 1px solid transparent;
  padding: 12px 14px;
  border-radius: 12px;
  transition: var(--transition);
}
.side-nav-item:hover {
  border-color: var(--border);
  background: #fff;
  box-shadow: var(--shadow-xs);
  transform: translateY(-2px);
}
.side-nav-item:hover .side-nav-icon {
  background: var(--secondary);
  color: #fff;
}
.side-nav-icon {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 58, 93, .1);
  color: var(--primary);
  border-radius: 9px;
  font-size: 16px;
  transition: var(--transition);
}
.side-nav-item b {
  display: block;
  color: var(--text-main);
  font-weight: 600;
  font-size: 15px;
}
.side-nav-item small {
  display: block;
  color: var(--text-aux);
  font-size: 12px;
  line-height: 1.4;
}
.side-nav-item .fa-chevron-right {
  margin-left: auto;
  color: #C5D0DA;
  font-size: 13px;
}
.side-tip p {
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 16px;
  line-height: 1.8;
}
.side-tip .btn {
  width: 100%;
}
@media (max-width: 991.98px) {
  .article-aside {
    padding-left: 0;
    margin-top: 32px;
  }
  .aside-inner {
    position: static;
  }
}

/* Related Section */
.section-related {
  margin-top: 50px;
}
.section-title-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}
.section-title-wrap .section-title {
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 800;
  color: var(--text-main);
  margin: 0;
}
.title-decoration {
  display: inline-block;
  width: 32px;
  height: 4px;
  background: var(--secondary);
  border-radius: 99px;
  margin-bottom: 10px;
}
.related-card {
  height: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
}
.related-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 86, 58, .38);
}
.rel-tag {
  color: var(--accent-teal);
  background: rgba(14, 143, 139, .1);
  display: inline-flex;
  align-items: center;
  width: max-content;
  font-size: 13px;
  border-radius: 999px;
  padding: 2px 12px;
}
.related-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.related-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-aux);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  flex: 1;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--secondary);
  font-size: 14px;
  font-weight: 500;
}
.text-link i {
  transition: var(--transition);
}
.text-link:hover {
  color: var(--primary);
}
.text-link:hover i {
  transform: translateX(4px);
}
@media (max-width: 991.98px) {
  .section-related {
    margin-top: 36px;
  }
  .related-card {
    margin-bottom: 16px;
  }
}

/* CTA Zone */
.cta-wrap {
  margin-top: 54px;
}
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  padding: 46px 48px;
  background: linear-gradient(115deg, rgba(10, 37, 54, .96), rgba(14, 58, 93, .86)),
              url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow: var(--shadow-lg);
  color: #fff;
}
.cta-panel::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(232, 86, 58, .22);
  pointer-events: none;
}
.cta-panel::after {
  content: "";
  position: absolute;
  left: -40px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(14, 143, 139, .18);
  pointer-events: none;
}
.cta-copy {
  position: relative;
  z-index: 2;
}
.cta-copy .cta-label {
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.cta-copy .cta-label i {
  color: var(--secondary);
}
.cta-copy h3 {
  color: #fff;
  font-size: clamp(23px, 2.5vw, 31px);
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-copy p {
  color: rgba(255, 255, 255, .74);
  max-width: 780px;
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 24px;
}
.cta-copy .btn {
  margin-right: 10px;
}
@media (max-width: 575.98px) {
  .cta-panel {
    padding: 32px 24px;
  }
  .cta-copy .btn {
    width: 100%;
    max-width: 360px;
    margin-right: 0;
    margin-bottom: 12px;
  }
}

/* Missing Article */
.missing-article {
  max-width: 720px;
  margin: 20px auto 0;
  text-align: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  padding: 64px 32px;
}
.missing-icon {
  margin: 0 auto 24px;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: rgba(14, 58, 93, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: var(--secondary);
}
.missing-article h1 {
  font-size: 30px;
  font-weight: 800;
}
.missing-article p {
  color: var(--text-body);
  font-size: 15px;
  margin-bottom: 28px;
  line-height: 1.9;
}

/* Footer */
.footer {
  background: #0A2536;
  color: rgba(255, 255, 255, .66);
  padding-top: 60px;
}
.footer-main {
  padding-bottom: 40px;
}
.footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer .brand-mark {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  width: 38px;
  height: 38px;
  flex-basis: 38px;
  font-size: 17px;
}
.footer .brand-name {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
}
.footer h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.footer-links li + li {
  margin-top: 10px;
}
.footer-links a {
  display: inline-block;
  color: rgba(255, 255, 255, .6);
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--secondary);
  transform: translateX(3px);
}
.text-light-50 {
  color: rgba(255, 255, 255, .5) !important;
  font-size: 14px;
}
.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 18px 0;
  background: rgba(0, 0, 0, .16);
}
.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}
@media (max-width: 767.98px) {
  .footer-main {
    padding-bottom: 20px;
  }
  .footer-bottom-row {
    flex-direction: column;
    text-align: center;
  }
}

/* Focus Accessibility */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
  border-radius: 4px;
}
.nav-link:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* roulang page: category1 */
:root {
  --primary: #0E3A5D;
  --primary-hover: #134B78;
  --secondary: #E8563A;
  --secondary-dark: #C9432B;
  --teal: #0E8F8B;
  --bg-body: #F4F7FA;
  --surface: #FFFFFF;
  --border: #E2E9F0;
  --text-strong: #122A3A;
  --text-body: #5A6B7A;
  --text-muted: #8B98A5;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-btn: 8px;
  --shadow-xs: 0 1px 2px rgba(14, 58, 93, .05);
  --shadow-md: 0 8px 24px rgba(14, 58, 93, .08);
  --shadow-lg: 0 18px 45px rgba(14, 58, 93, .12);
  --spacing-section: 92px;
  --spacing-mobile: 60px;
  --container-width: 1200px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", "Arial", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-strong);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--secondary);
  text-decoration: none;
}

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

button,
input,
textarea,
select {
  font-family: inherit;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-strong);
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 .6em;
}

h1 {
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: .5px;
}

h2 {
  font-size: clamp(25px, 2.6vw, 34px);
  letter-spacing: .2px;
}

h3 {
  font-size: 21px;
}

h4 {
  font-size: 18px;
}

p {
  color: var(--text-body);
  margin-bottom: 1rem;
}

ul, ol {
  padding-left: 1.15rem;
}

:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: calc(var(--bs-gutter-x, 1.5rem) * .5);
  padding-right: calc(var(--bs-gutter-x, 1.5rem) * .5);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  text-align: center;
  border: 1px solid transparent;
  transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.btn-sm {
  height: 36px;
  padding-left: 18px;
  padding-right: 18px;
  font-size: 14px;
}

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

.btn-brand:hover,
.btn-brand:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  box-shadow: 0 6px 18px rgba(14, 58, 93, .18);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--secondary);
  border-color: var(--secondary);
  color: #fff;
}

.btn-accent:hover,
.btn-accent:focus {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: #fff;
  box-shadow: 0 6px 18px rgba(232, 86, 58, .22);
  transform: translateY(-1px);
}

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

.btn-outline-brand:hover,
.btn-outline-brand:focus {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(14, 58, 93, .14);
  transform: translateY(-1px);
}

.btn-outline-light {
  background-color: transparent;
  border-color: rgba(255,255,255,.45);
  color: #fff;
}

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

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: 0;
  height: auto;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

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

.btn-link:hover {
  color: var(--secondary);
}

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

/* ===== Header & Navigation ===== */
.header-main {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.header-main .navbar {
  padding: .45rem 0;
  min-height: 68px;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 4px 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-size: 19px;
  box-shadow: 0 6px 16px rgba(14, 58, 93, .14);
}

.brand-name {
  display: block;
  color: var(--primary);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .2px;
}

.brand-name span {
  color: var(--secondary);
}

.brand-sub {
  display: block;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  margin-top: 2px;
  line-height: 1.3;
}

.navbar-main {
  gap: .3rem;
}

.navbar-main .nav-link {
  position: relative;
  padding: .65rem .75rem;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-strong);
  white-space: nowrap;
}

.navbar-main .nav-link::after {
  content: "";
  position: absolute;
  left: .5rem;
  right: .5rem;
  bottom: .12rem;
  height: 2px;
  border-radius: 999px;
  background: var(--secondary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease;
}

.navbar-main .nav-item:hover .nav-link,
.navbar-main .nav-item .nav-link:focus {
  color: var(--primary);
}

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

.navbar-main .nav-item.active .nav-link {
  color: var(--primary);
}

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

.header-cta {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.navbar .navbar-toggler {
  border: 0;
  padding: 8px 12px;
  font-size: 24px;
  line-height: 1;
  color: var(--primary);
  border-radius: 8px;
  background: transparent;
}

.navbar .navbar-toggler:hover,
.navbar .navbar-toggler:focus {
  color: var(--secondary);
  box-shadow: none;
}

/* ===== Page hero ===== */
.category-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 84px;
  background:
    radial-gradient(circle at 82% 12%, rgba(14, 143, 139, .08), transparent 25%),
    radial-gradient(circle at 18% 88%, rgba(14, 58, 93, .05), transparent 30%),
    #f8fbfd;
  border-bottom: 1px solid var(--border);
}

.category-hero::before {
  content: "";
  position: absolute;
  width: 460px;
  height: 460px;
  right: -170px;
  top: -170px;
  border-radius: 50%;
  border: 1px solid rgba(14,58,93,.06);
  pointer-events: none;
}

.category-hero::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  left: -120px;
  bottom: -160px;
  border-radius: 50%;
  border: 1px solid rgba(232,86,58,.08);
  pointer-events: none;
}

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

.breadcrumb-nav {
  margin-bottom: 42px;
}

.breadcrumb-nav .breadcrumb {
  margin: 0;
  padding: 0;
  background: transparent;
}

.breadcrumb-nav .breadcrumb-item {
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb-nav .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--text-muted);
}

.breadcrumb-nav .breadcrumb-item a {
  color: var(--text-body);
  font-weight: 500;
}

.breadcrumb-nav .breadcrumb-item a:hover {
  color: var(--secondary);
}

.breadcrumb-nav .breadcrumb-item.active {
  color: var(--primary);
  font-weight: 600;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(14,58,93,.07);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}

.section-eyebrow i {
  color: var(--secondary);
}

.hero-title {
  margin-bottom: 18px;
}

.hero-title .text-orange {
  color: var(--secondary);
}

.hero-lead {
  font-size: 17px;
  color: var(--text-body);
  max-width: 62ch;
  line-height: 1.8;
  margin-bottom: 28px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.8);
  color: var(--text-body);
  font-size: 13px;
  font-weight: 500;
}

.hero-tag i {
  color: var(--teal);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
}

.hero-media {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 16px;
  box-shadow: var(--shadow-lg);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  border-radius: 17px;
}

.hero-media-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 6px 4px;
  font-size: 13px;
  color: var(--text-body);
}

.hero-media-caption span:first-child {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-weight: 600;
}

.hero-media-caption span:first-child i {
  color: var(--teal);
}

.hero-media-caption em {
  font-style: normal;
  color: var(--text-muted);
}

/* ===== Sections ===== */
.site-section {
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 44px;
}

.section-head .section-title {
  margin-bottom: 0;
}

.section-intro {
  color: var(--text-body);
  max-width: 44ch;
  line-height: 1.75;
  margin-bottom: 0;
  font-size: 15px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--secondary);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}

.section-kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--secondary);
  border-radius: 999px;
}

.bg-white {
  background: #fff;
}

.bg-soft {
  background: #EEF4F8;
}

/* ===== Platform service list ===== */
.service-directory {
  padding-top: 76px;
}

.service-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  padding: 38px;
  margin-bottom: 28px;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

.service-item:hover {
  border-color: rgba(232, 86, 58, .25);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-media {
  overflow: hidden;
  border-radius: 16px;
  background: #E9F0F5;
  height: 100%;
}

.service-media img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  transition: transform .5s ease;
}

.service-item:hover .service-media img {
  transform: scale(1.03);
}

.service-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 8px 0;
}

.service-number {
  font-size: 14px;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: .4px;
  margin-bottom: 14px;
}

.service-content h3 {
  margin-bottom: 14px;
}

.service-content p {
  font-size: 15px;
  color: var(--text-body);
}

.feature-list {
  list-style: none;
  margin: 4px 0 22px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.feature-list li {
  display: flex;
  gap: 10px;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.6;
}

.feature-list li i {
  color: var(--teal);
  margin-top: 5px;
  font-size: 13px;
}

.service-item-reverse .service-media {
  order: 2;
}

.service-item-reverse .service-content {
  order: 1;
}

@media (min-width: 992px) {
  .service-item-reverse .service-media {
    order: 2;
  }
  .service-item-reverse .service-content {
    order: 1;
  }
}

/* ===== Identity list / role guide ===== */
.guide-section .section-head {
  margin-bottom: 28px;
}

.guide-block {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 42px;
  color: #fff;
  height: 100%;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.guide-block::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -90px;
  bottom: -90px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.16);
}

.guide-block h3 {
  color: #fff;
  font-size: 26px;
  max-width: 13ch;
  line-height: 1.4;
}

.guide-block p {
  color: rgba(255,255,255,.68);
  font-size: 14px;
  max-width: 24em;
  margin: 18px 0 0;
}

.identity-list {
  display: grid;
  gap: 12px;
}

.identity-item {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-xs);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.identity-item:hover {
  border-color: rgba(14,143,139,.32);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.identity-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(14,143,139,.12);
  color: var(--teal);
  font-size: 20px;
}

.identity-item:nth-child(2) .identity-icon {
  background: rgba(232,86,58,.12);
  color: var(--secondary);
}

.identity-item:nth-child(3) .identity-icon {
  background: rgba(14,58,93,.1);
  color: var(--primary);
}

.identity-copy h4 {
  margin-bottom: 3px;
}

.identity-copy p {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0;
  line-height: 1.6;
}

.identity-link {
  color: var(--text-body);
  font-size: 18px;
  padding: 8px 10px;
  border-radius: 8px;
}

.identity-link:hover {
  color: var(--secondary);
  background: rgba(232,86,58,.08);
}

/* ===== Process ===== */
.process-section {
  background: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.process-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  background: var(--surface);
  position: relative;
  overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease;
}

.process-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--secondary);
  opacity: 0;
  transition: opacity .25s ease;
}

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

.process-item:hover::before {
  opacity: 1;
}

.process-step {
  font-size: 13px;
  font-weight: 800;
  color: var(--teal);
  margin-bottom: 12px;
}

.process-item h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

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

/* ===== Recommendation block ===== */
.recommend-section {
  background: #fff;
}

.recommend-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: #fff;
}

.recommend-card .row {
  margin: 0;
}

.recommend-card .col-lg-5,
.recommend-card .col-lg-7 {
  padding: 0;
}

.recommend-media {
  height: 100%;
  min-height: 300px;
  background: #EDF3F7;
}

.recommend-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.recommend-content {
  padding: 44px;
}

.recommend-content .section-eyebrow {
  margin-bottom: 14px;
}

.recommend-content h3 {
  margin-bottom: 22px;
  line-height: 1.5;
}

.recommend-content p {
  color: var(--text-body);
  margin-bottom: 30px;
}

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

.related-links li + li {
  border-top: 1px dashed var(--border);
}

.related-links a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 13px 2px;
  font-weight: 600;
  color: var(--primary);
}

.related-links a i {
  color: var(--muted, #8B98A5);
  transition: color .2s ease, transform .2s ease;
}

.related-links a:hover {
  color: var(--secondary);
}

.related-links a:hover i {
  color: var(--secondary);
  transform: translateX(4px);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-body);
}

.faq-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-xs);
  padding: 0 24px;
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-strong);
  transition: color .2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--secondary);
}

.faq-item summary .faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--secondary);
  font-size: 14px;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}

.faq-item[open] summary .faq-icon {
  background: var(--secondary);
  border-color: var(--secondary);
  color: #fff;
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 0 20px;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.85;
}

.faq-answer p {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  padding-top: 70px;
  padding-bottom: 90px;
}

.cta-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  padding: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.cta-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--secondary);
}

.cta-copy {
  flex: 1 1 430px;
}

.cta-copy h2 {
  font-size: clamp(23px, 2.2vw, 30px);
  margin-bottom: 12px;
}

.cta-copy p {
  margin: 0;
  max-width: 58ch;
}

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

/* ===== Footer ===== */
.footer {
  background: #0A2536;
  color: rgba(255,255,255,.72);
  padding-top: 76px;
}

.footer-main {
  padding-bottom: 52px;
}

.footer h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer p {
  color: rgba(255,255,255,.68);
  font-size: 14px;
  line-height: 1.8;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: rgba(255,255,255,.62);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a::before {
  content: "\203A";
  color: var(--secondary);
  font-weight: 700;
}

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

.footer-copyright {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
}

.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: rgba(255,255,255,.42);
}

.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  z-index: 900;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}

.back-top:hover {
  background: var(--secondary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .brand-sub {
    font-size: 10px;
  }
  .navbar-main .nav-link {
    font-size: 14px;
    padding-left: .55rem;
    padding-right: .55rem;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (max-width: 991.98px) {
  .category-hero {
    padding-top: 50px;
    padding-bottom: 58px;
  }
  .site-section {
    padding-top: var(--spacing-mobile);
    padding-bottom: var(--spacing-mobile);
  }
  .section-head {
    margin-bottom: 30px;
  }
  .header-main .navbar-collapse {
    background: #fff;
    margin-top: 12px;
    border-top: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 8px 0 14px;
  }
  .header-main .navbar-nav {
    width: 100%;
    gap: 2px;
  }
  .header-main .nav-item {
    width: 100%;
  }
  .header-main .navbar-main .nav-link {
    display: block;
    padding: .85rem 1rem;
    border-radius: 10px;
  }
  .header-main .navbar-main .nav-link::after {
    display: none;
  }
  .header-main .navbar-main .nav-item.active .nav-link {
    background: rgba(14,58,93,.06);
  }
  .header-cta {
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    width: 100%;
  }
  .header-cta .btn {
    width: 100%;
  }
  .service-item {
    padding: 28px;
  }
  .service-item .service-media,
  .service-item .service-content {
    order: 0 !important;
    flex: 0 0 auto;
  }
  .service-content {
    padding-top: 20px;
  }
  .guide-block {
    padding: 32px;
    margin-bottom: 26px;
  }
  .identity-item {
    grid-template-columns: 44px 1fr;
  }
  .identity-link {
    display: none;
  }
  .cta-panel {
    padding: 32px;
  }
}

@media (max-width: 575.98px) {
  .container {
    --bs-gutter-x: 1rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }
  h1 {
    font-size: 28px;
  }
  h2 {
    font-size: 24px;
  }
  body {
    font-size: 15px;
  }
  .navbar-brand .brand-sub {
    display: none;
  }
  .category-hero {
    padding: 40px 0 50px;
  }
  .category-hero .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .hero-media {
    padding: 8px;
    border-radius: 16px;
  }
  .hero-media img {
    border-radius: 12px;
    aspect-ratio: 4 / 3;
  }
  .service-item {
    padding: 20px;
  }
  .service-media {
    height: auto;
  }
  .service-media img {
    min-height: 190px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .recommend-content {
    padding: 26px 22px;
  }
  .identity-item {
    padding: 18px 16px;
    grid-template-columns: 42px 1fr;
    gap: 12px;
  }
  .identity-copy h4 {
    font-size: 16px;
  }
  .cta-panel {
    padding: 28px 20px;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
    max-width: 360px;
  }
  .footer-bottom-row {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

/* roulang page: category2 */
/* ============ Design Tokens ============ */
    :root {
      --bg-body: #F4F7FA;
      --bg-surface: #FFFFFF;
      --primary: #0E3A5D;
      --primary-hover: #134B78;
      --secondary: #E8563A;
      --secondary-hover: #C9432B;
      --teal: #0E8F8B;
      --text-dark: #122A3A;
      --text-mid: #5A6B7A;
      --text-light: #8B98A5;
      --border: #E2E9F0;
      --shadow-xs: 0 1px 2px rgba(14,58,93,.05);
      --shadow-md: 0 8px 24px rgba(14,58,93,.08);
      --shadow-lg: 0 18px 45px rgba(14,58,93,.12);
      --radius: 12px;
      --radius-sm: 8px;
      --radius-pill: 999px;
      --space-section: 96px;
      --space-section-mobile: 64px;
      --max-width: 1200px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", "Arial", sans-serif;
      --transition-base: 0.2s ease;
    }

    /* ============ Reset & Base ============ */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-body);
      color: var(--text-dark);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition-base);
    }
    a:hover {
      color: var(--secondary);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
    }
    ul, ol {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    h1, h2, h3, h4, h5, h6 {
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: .2px;
      line-height: 1.3;
    }
    h1 {
      font-size: clamp(32px, 4vw, 44px);
    }
    h2 {
      font-size: clamp(26px, 2.6vw, 34px);
      margin-bottom: 18px;
    }
    h3 {
      font-size: 20px;
      margin-bottom: 12px;
    }
    h4 {
      font-size: 18px;
    }
    p {
      color: var(--text-mid);
      margin-bottom: 14px;
    }

    /* ============ Buttons & Badges ============ */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      border: 1px solid transparent;
      transition: all .25s ease;
      height: 44px;
      line-height: 1;
      white-space: nowrap;
    }
    .btn:focus-visible, a:focus-visible, button:focus-visible {
      outline: 2px solid var(--secondary);
      outline-offset: 2px;
    }
    .btn-primary, .btn-brand {
      background-color: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .btn-primary:hover, .btn-brand:hover {
      background-color: var(--primary-hover);
      color: #fff;
      border-color: var(--primary-hover);
      box-shadow: 0 6px 18px rgba(14,58,93,.18);
      transform: translateY(-1px);
    }
    .btn-outline-brand {
      background-color: #fff;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-outline-brand:hover {
      background-color: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .btn-secondary-custom {
      background-color: var(--secondary);
      color: #fff;
      border-color: var(--secondary);
    }
    .btn-secondary-custom:hover {
      background-color: var(--secondary-hover);
      color: #fff;
      border-color: var(--secondary-hover);
      box-shadow: 0 6px 18px rgba(232,86,58,.2);
    }
    .btn-sm {
      height: 38px;
      padding: 0 18px;
      font-size: 14px;
    }

    /* ============ Header / Nav ============ */
    .header-main {
      background: var(--bg-surface);
      box-shadow: var(--shadow-xs);
      position: sticky;
      top: 0;
      z-index: 1050;
      border-bottom: 1px solid var(--border);
    }
    .header-main .nav {
      min-height: 68px;
    }
    .navbar {
      padding: 8px 0;
      min-height: 68px;
    }
    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-right: 20px;
      padding: 6px 0;
    }
    .brand-mark {
      background: var(--primary);
      color: #fff;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }
    .brand-name {
      font-size: 22px;
      font-weight: 800;
      letter-spacing: .4px;
      color: var(--primary);
      line-height: 1.2;
      display: inline-block;
    }
    .brand-name span {
      color: var(--secondary);
    }
    .brand-sub {
      font-size: 12px;
      color: var(--text-light);
      display: block;
      margin-top: 2px;
      line-height: 1.3;
    }
    .navbar-nav.navbar-main .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-dark);
      padding: 10px 16px;
      margin: 0 2px;
      border-radius: 8px;
      transition: background .2s ease, color .2s ease;
    }
    .navbar-nav.navbar-main .nav-link:hover {
      background-color: #edf3f7;
      color: var(--primary);
    }
    .navbar-nav.navbar-main .nav-item.active .nav-link {
      color: var(--primary);
      font-weight: 700;
      background: #e4edf5;
    }
    .header-cta .btn {
      margin-left: 8px;
    }
    .navbar-toggler {
      border: none;
      color: var(--primary);
      font-size: 24px;
      padding: 4px 10px;
    }
    .navbar-toggler:focus {
      box-shadow: none;
      outline: 2px solid var(--primary);
    }
    .navbar-main .nav-item {
      margin: 0 2px;
    }

    /* ============ Breadcrumb ============ */
    .breadcrumb-wrap {
      background: transparent;
      padding: 20px 0 0;
      margin-bottom: 10px;
    }
    .breadcrumb {
      background: transparent;
      padding: 0;
      margin: 0;
      font-size: 13px;
      --bs-breadcrumb-divider: '/';
    }
    .breadcrumb .breadcrumb-item a {
      color: var(--text-mid);
      text-decoration: none;
    }
    .breadcrumb .breadcrumb-item a:hover {
      color: var(--secondary);
    }
    .breadcrumb .breadcrumb-item.active {
      color: var(--primary);
      font-weight: 600;
    }

    /* ============ Page Hero ============ */
    .category-hero {
      padding: 60px 0 40px;
      background-color: #fff;
      border-bottom: 1px solid var(--border);
    }
    .category-hero h1 {
      font-size: clamp(30px, 4vw, 44px);
      margin-bottom: 14px;
    }
    .category-hero .hero-highlight {
      color: var(--secondary);
    }
    .category-hero .hero-desc {
      font-size: 17px;
      color: var(--text-mid);
      max-width: 720px;
    }
    .category-hero .hero-cta {
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .hero-meta-line {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 14px;
      color: var(--text-mid);
      margin-top: 20px;
      flex-wrap: wrap;
      padding-top: 18px;
      border-top: 1px solid var(--border);
    }
    .hero-meta-line i {
      color: var(--teal);
      width: 18px;
      margin-right: 5px;
    }

    /* ============ Section spacing ============ */
    .section-default {
      padding: var(--space-section) 0;
    }
    .section-tight {
      padding: 56px 0;
    }
    .bg-soft {
      background-color: #F9FBFD;
    }
    .section-heading-center {
      text-align: center;
      max-width: 680px;
      margin-left: auto;
      margin-right: auto;
      margin-bottom: 48px;
    }
    .section-heading-center h2 {
      position: relative;
      display: inline-block;
      margin-bottom: 14px;
    }
    .section-heading-center h2:after {
      content: '';
      display: block;
      width: 48px;
      height: 3px;
      background: var(--secondary);
      margin: 12px auto 0;
      border-radius: 4px;
    }
    .section-heading-center p {
      margin-top: 16px;
      font-size: 16px;
    }

    /* ============ Cards & common components ============ */
    .card {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background-color: var(--bg-surface);
      box-shadow: var(--shadow-xs);
      transition: transform .25s ease, box-shadow .3s ease;
      overflow: hidden;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .card-body {
      padding: 28px;
    }
    .icon-box {
      width: 54px;
      height: 54px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 16px;
    }
    .icon-bg-primary-soft {
      background-color: #dfe9f2;
      color: var(--primary);
    }
    .icon-bg-teal-soft {
      background-color: #d9f0ef;
      color: var(--teal);
    }
    .icon-bg-secondary-soft {
      background-color: #fbe4df;
      color: var(--secondary);
    }

    .card-title {
      font-size: 20px;
      margin-bottom: 12px;
      font-weight: 700;
    }
    .card-text {
      font-size: 15px;
      color: var(--text-mid);
      line-height: 1.7;
    }
    .badge-tag {
      background-color: #e4edf5;
      color: var(--primary);
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 500;
      display: inline-block;
    }
    .badge-tag.teal {
      background: #dceff0;
      color: var(--teal);
    }
    .badge-tag.coral {
      background: #f7ddd6;
      color: var(--secondary);
    }

    /* ============ Ecosystem split section 1 ============ */
    .eco-block {
      padding: 60px 0;
    }
    .eco-card-horizontal {
      display: flex;
      background: #fff;
      border-radius: var(--radius);
      box-shadow: var(--shadow-xs);
      border: 1px solid var(--border);
      overflow: hidden;
      margin-bottom: 32px;
      transition: box-shadow .3s;
    }
    .eco-card-horizontal:hover {
      box-shadow: var(--shadow-md);
    }
    .eco-card-horizontal .eco-img-left {
      width: 38%;
      min-height: 240px;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
    }
    .eco-card-content {
      flex: 1;
      padding: 32px 32px 24px;
    }
    .eco-card-content h3 {
      font-size: 22px;
      margin-bottom: 8px;
    }
    .eco-card-content .meta {
      color: var(--text-light);
      font-size: 13px;
      margin-bottom: 14px;
    }
    .highlights-list {
      margin: 18px 0;
    }
    .highlights-list li {
      display: flex;
      gap: 10px;
      padding: 5px 0;
      font-size: 15px;
      color: var(--text-mid);
    }
    .highlights-list li i {
      color: var(--teal);
      margin-top: 3px;
    }
    .link-more {
      font-weight: 600;
      color: var(--primary);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color .2s;
    }
    .link-more:hover {
      color: var(--secondary);
    }

    /* ============ Ecosystem asymmetric cards ============ */
    .ecosystem-grid-asym {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .eco-asym-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-xs);
      transition: transform .25s, box-shadow .25s;
      height: 100%;
    }
    .eco-asym-card:first-child {
      grid-row: span 2;
      height: 100%;
      background: var(--primary);
      border: none;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 0;
    }
    .eco-asym-card:first-child .eco-asym-bg {
      background-size: cover;
      background-position: center;
      min-height: 240px;
    }
    .eco-asym-card:first-child .eco-asym-content {
      padding: 28px;
      background: rgba(14,58,93,0.92);
    }
    .eco-asym-card:first-child .card-title {
      color: #fff;
    }
    .eco-asym-card:first-child .card-text {
      color: rgba(255,255,255,.75);
    }
    .eco-asym-card .eco-asym-image {
      width: 100%;
      height: 180px;
      background-size: cover;
      background-position: center;
    }
    .eco-asym-body {
      padding: 20px 24px 26px;
    }
    .eco-asym-body .card-text {
      font-size: 14.5px;
    }
    .eco-border-top-accent {
      border-top: 3px solid var(--secondary);
    }

    /* ============ Feature / Application ============ */
    .value-badge-row {
      display: flex;
      gap: 10px;
    }
    .value-stat {
      text-align: center;
      padding: 12px 10px;
      border-left: 3px solid var(--secondary);
    }
    .value-stat .stat-number {
      font-size: 42px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      letter-spacing: -1px;
    }
    .stat-unit {
      font-size: 18px;
      color: var(--secondary);
      font-weight: 700;
    }
    .stat-label {
      font-size: 13px;
      color: var(--text-mid);
      margin-top: 4px;
    }
    .connect-score-grid {
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      padding: 32px;
      box-shadow: var(--shadow-xs);
    }
    .conn-item {
      border-bottom: 1px dashed var(--border);
      padding: 22px 0;
      display: flex;
      gap: 20px;
      align-items: flex-start;
    }
    .conn-item:last-child {
      border-bottom: 0;
    }
    .conn-num {
      font-size: 32px;
      font-weight: 800;
      color: #d9e5ef;
      line-height: 1;
      min-width: 44px;
      letter-spacing: -1px;
    }
    .conn-content h4 {
      margin-bottom: 4px;
    }
    .conn-content p {
      margin-bottom: 0;
      font-size: 15px;
    }

    /* ============ FAQ ============ */
    .faq-accordion .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color .2s;
    }
    .faq-accordion .faq-item:hover {
      border-color: var(--primary);
    }
    .faq-accordion summary {
      padding: 20px 28px;
      cursor: pointer;
      font-weight: 600;
      font-size: 16px;
      color: var(--text-dark);
      list-style: none;
      position: relative;
      background: #fff;
      transition: background .2s;
      border-radius: 12px;
    }
    .faq-accordion summary::-webkit-details-marker {
      display: none;
    }
    .faq-accordion summary:after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      right: 24px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--primary);
      font-size: 14px;
      transition: transform .25s;
    }
    .faq-accordion details[open] summary:after {
      transform: translateY(-50%) rotate(180deg);
      color: var(--secondary);
    }
    .faq-accordion .faq-answer {
      padding: 0 28px 20px;
      color: var(--text-mid);
      font-size: 14.5px;
      border-top: 1px solid #f0f4f8;
      padding-top: 16px;
    }

    /* ============ CTA section ============ */
    .cta-panel {
      background-color: var(--primary);
      border-radius: 20px;
      padding: 56px 48px;
      color: #fff;
      text-align: center;
    }
    .cta-panel h2 {
      color: #fff;
      font-size: 28px;
      margin-bottom: 12px;
    }
    .cta-panel p {
      color: rgba(255,255,255,.7);
    }
    .cta-panel .btn-light-brand {
      background-color: #fff;
      color: var(--primary);
      border: none;
    }
    .cta-panel .btn-light-brand:hover {
      background: #e5edf5;
      color: var(--primary);
    }
    .cta-panel .btn-outline-light {
      border: 1px solid rgba(255,255,255,.65);
      color: #fff;
      background: transparent;
      margin-left: 12px;
    }
    .cta-panel .btn-outline-light:hover {
      background-color: rgba(255,255,255,.1);
    }

    /* ============ Footer ============ */
    .footer {
      background-color: #0A2536;
      background: linear-gradient(180deg, #0B2A3B 0%, #081D2B 100%);
      color: #d4e3ee;
      padding-top: 64px;
      margin-top: 0;
    }
    .footer-main {
      padding-bottom: 32px;
    }
    .footer .row h5 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: rgba(255,255,255,.6);
      font-size: 14px;
      transition: color .2s, padding-left .2s;
      padding-left: 0;
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
      text-decoration: none;
    }
    .footer .text-light-50 {
      color: rgba(255,255,255,.5);
      font-size: 14.5px;
    }
    .footer-copyright {
      border-top: 1px solid rgba(255,255,255,.08);
      padding: 20px 0;
      font-size: 13px;
      color: rgba(255,255,255,.35);
    }
    .footer-bottom-row {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }

    /* ============ Responsive ============ */
    @media (max-width: 1200px) {
      .eco-card-horizontal .eco-img-left {
        width: 34%;
      }
    }
    @media (max-width: 992px) {
      .section-default {
        padding: var(--space-section-mobile) 0;
      }
      .navbar-nav.navbar-main .nav-link {
        padding: 12px 0;
        border-bottom: 1px solid #f0f4f8;
      }
      .header-cta .btn {
        margin-top: 10px;
      }
      .category-hero {
        padding-top: 32px;
      }
      .hero-cta .btn {
        width: 100%;
        margin-bottom: 8px;
      }
      .cta-panel {
        padding: 36px 24px;
      }
      .eco-card-horizontal {
        flex-direction: column;
      }
      .eco-card-horizontal .eco-img-left {
        width: 100%;
        min-height: 170px;
        background-repeat: no-repeat;
        background-size: cover;
      }
    }
    @media (max-width: 768px) {
      .ecosystem-grid-asym {
        grid-template-columns: 1fr;
      }
      .eco-asym-card:first-child {
        grid-row: span 1;
      }
      .hero-cta .btn {
        width: 100%;
        max-width: 360px;
        margin: 0 auto 8px;
      }
      .hero-meta-line {
        gap: 12px;
        flex-direction: column;
        align-items: flex-start;
      }
      .cta-panel {
        margin-left: 0;
        margin-right: 0;
        border-radius: 14px;
      }
      .footer-main .col-lg-4, .footer-main .col-lg-2 {
        margin-bottom: 20px;
      }
    }
    @media (max-width: 576px) {
      .brand-name {
        font-size: 19px;
      }
      .brand-sub {
        font-size: 11px;
      }
      .section-default {
        padding: 48px 0;
      }
      .eco-card-content {
        padding: 20px;
      }
      .cta-panel {
        padding: 30px 20px;
      }
      .footer-bottom-row {
        flex-direction: column;
        justify-content: center;
        text-align: center;
      }
    }

/* roulang page: category3 */
:root{
  --bg-body:#F4F7FA;
  --bg-surface:#FFFFFF;
  --bg-soft:#F9FBFD;
  --bg-deep:#0A2536;
  --primary:#0E3A5D;
  --primary-hover:#134B78;
  --secondary:#E8563A;
  --secondary-hover:#C9432B;
  --teal:#0E8F8B;
  --text-main:#122A3A;
  --text-body:#5A6B7A;
  --text-muted:#8B98A5;
  --border-color:#E2E9F0;
  --radius-xs:6px;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --shadow-xs:0 1px 2px rgba(14,58,93,.05);
  --shadow-md:0 8px 24px rgba(14,58,93,.08);
  --shadow-lg:0 18px 45px rgba(14,58,93,.12);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","Arial",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg-body);
  color:var(--text-main);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--secondary)}
a:focus-visible{outline:2px solid var(--secondary);outline-offset:2px;border-radius:4px}
button:focus-visible,.btn:focus-visible{outline:2px solid var(--secondary);outline-offset:2px;box-shadow:none}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:88px 0}
@media(max-width:991.98px){.section{padding:64px 0}}
h1,h2,h3,h4,h5{font-family:var(--font-cn);color:var(--text-main);line-height:1.35}
h1{font-size:clamp(30px,4vw,44px);font-weight:700;letter-spacing:.5px}
h2{font-size:clamp(25px,2.6vw,34px);font-weight:700}
h3{font-size:20px;font-weight:700}
h4{font-size:18px;font-weight:600}
p{color:var(--text-body)}
.text-accent{color:var(--secondary)}
.text-light-50{color:rgba(255,255,255,.65)}
.bg-soft{background:var(--bg-soft)}
.bg-deep{background:var(--bg-deep)}

/* ===== Buttons ===== */
.btn{
  height:44px;
  padding:0 28px;
  border-radius:var(--radius-sm);
  font-weight:600;
  letter-spacing:.2px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-width:1px;
  transition:all .22s ease;
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-primary,
.btn-brand{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  box-shadow:0 2px 8px rgba(14,58,93,.12);
}
.btn-primary:hover,
.btn-brand:hover{
  background:var(--primary-hover);
  border-color:var(--primary-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(14,58,93,.2);
}
.btn-primary:active,
.btn-brand:active{
  background:#0C3151;
  border-color:#0C3151;
  color:#fff;
}
.btn-outline-brand,
.btn-outline-primary{
  background:#fff;
  border:1px solid var(--primary);
  color:var(--primary);
  box-shadow:none;
}
.btn-outline-brand:hover,
.btn-outline-primary:hover{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.btn-outline-light{
  background:transparent;
  border:1px solid rgba(255,255,255,.7);
  color:#fff;
}
.btn-outline-light:hover{
  background:#fff;
  border-color:#fff;
  color:var(--primary);
}
.btn-outline-light:focus-visible{outline-color:#fff}
.btn-block-mobile{width:auto}
@media(max-width:575.98px){
  .btn-block-mobile{width:100%;max-width:360px}
}

/* ===== Header / Nav ===== */
.header-main{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border-color);
  box-shadow:var(--shadow-xs);
  height:68px;
}
.header-main .navbar{
  min-height:68px;
  padding-top:8px;
  padding-bottom:8px;
}
.navbar-brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  padding:0;
  margin:0;
}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:var(--radius-sm);
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  flex:0 0 auto;
  box-shadow:0 4px 12px rgba(14,58,93,.22);
}
.brand-name{
  display:block;
  font-size:19px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
  letter-spacing:.4px;
}
.brand-name span{color:var(--secondary)}
.brand-sub{
  display:block;
  font-size:11px;
  color:var(--text-muted);
  letter-spacing:1.2px;
  line-height:1.4;
  margin-top:1px;
}
.navbar-main .nav-item{
  margin:0 8px;
  position:relative;
}
.navbar-main .nav-link{
  color:var(--text-body);
  font-size:15px;
  font-weight:500;
  padding:8px 12px!important;
  border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
  position:relative;
}
.navbar-main .nav-link:hover{
  color:var(--primary);
  background:rgba(14,58,93,.06);
}
.navbar-main .nav-item.active .nav-link{
  color:var(--primary);
  background:rgba(14,58,93,.08);
  font-weight:700;
}
.navbar-main .nav-item.active .nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:3px;
  border-radius:3px;
  background:var(--secondary);
}
.header-cta .btn{
  background:var(--secondary);
  border-color:var(--secondary);
  color:#fff;
}
.header-cta .btn:hover{
  background:var(--secondary-hover);
  border-color:var(--secondary-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(232,86,58,.28);
}
.navbar-toggler{
  border:1px solid var(--border-color);
  border-radius:8px;
  width:42px;
  height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0;
  color:var(--primary)!important;
  background:#fff;
}
.navbar-toggler:hover{
  background:rgba(14,58,93,.05);
  border-color:var(--primary);
}
.navbar-toggler:focus{
  box-shadow:0 0 0 3px rgba(232,86,58,.22);
}
.navbar-toggler .fa-bars{font-size:19px;color:var(--primary)}
@media(max-width:991.98px){
  body{padding-top:0}
  .header-main .navbar{padding-left:0;padding-right:0}
  .navbar-collapse{
    position:absolute;
    left:0;
    right:0;
    top:68px;
    background:#fff;
    border-bottom:1px solid var(--border-color);
    box-shadow:var(--shadow-md);
    padding:16px 20px 20px;
  }
  .navbar-main{
    width:100%;
    align-items:stretch!important;
    padding:6px 0;
  }
  .navbar-main .nav-item{margin:4px 0}
  .navbar-main .nav-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:11px 14px!important;
    border-radius:var(--radius-sm);
    font-size:16px;
  }
  .navbar-main .nav-item.active .nav-link::after{display:none}
  .header-cta{
    margin-top:10px;
    display:flex;
    width:100%;
  }
  .header-cta .btn{flex:1}
}

/* ===== Hero ===== */
.page-hero{
  position:relative;
  color:#fff;
  padding:62px 0 72px;
  background:
    linear-gradient(104deg,rgba(10,37,54,.92) 0%,rgba(10,37,54,.86) 38%,rgba(10,37,54,.52) 100%),
    url('/assets/images/backpic/back-1.webp') center center/cover no-repeat;
  border-bottom:3px solid var(--secondary);
}
@media(max-width:767.98px){
  .page-hero{padding:44px 0 54px}
}
.page-hero .breadcrumb{
  margin-bottom:24px;
}
.page-hero .breadcrumb-item,
.page-hero .breadcrumb-item a{
  color:rgba(255,255,255,.62);
  font-size:13px;
  text-decoration:none;
}
.page-hero .breadcrumb-item a:hover{color:#fff}
.page-hero .breadcrumb-item+.breadcrumb-item::before{
  content:"/";
  color:rgba(255,255,255,.45);
}
.page-hero .breadcrumb-item.active{color:rgba(255,255,255,.88)}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.3);
  border-radius:999px;
  padding:5px 16px;
  font-size:13px;
  font-weight:600;
  color:#fff;
  letter-spacing:1px;
  margin-bottom:17px;
}
.hero-tag i{color:#FFB49C}
.page-hero h1{color:#fff;margin-bottom:14px}
.page-hero h1 span{color:var(--secondary)}
.hero-lead{
  color:rgba(255,255,255,.82);
  font-size:17px;
  line-height:1.9;
  max-width:660px;
  margin-bottom:28px;
}
.hero-actions .btn{margin-bottom:8px}
.hero-spacer{height:100%}
.hero-panel{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(4px);
  border-radius:var(--radius-md);
  padding:26px 26px 24px;
  margin-top:12px;
}
.hero-panel h4{
  color:#fff;
  font-size:16px;
  margin-bottom:14px;
  letter-spacing:.5px;
}
.hero-panel h4 i{color:#FFB49C;margin-right:7px}
.hero-panel ul{list-style:none;margin:0;padding:0}
.hero-panel li{
  border-top:1px solid rgba(255,255,255,.14);
  padding:10px 0;
}
.hero-panel li:first-child{border-top:none}
.hero-panel a{
  display:flex;
  align-items:center;
  gap:9px;
  color:rgba(255,255,255,.9);
  font-size:14px;
  text-decoration:none;
  padding:2px 0;
  transition:color .2s ease;
}
.hero-panel a i{width:18px;color:var(--secondary);font-size:14px}
.hero-panel a:hover{color:#fff}
.hero-panel a:hover i{transform:translateX(3px)}
.hero-panel a i{transition:transform .2s ease,dolor .2s ease}
@media(max-width:991.98px){
  .hero-panel{margin-top:30px}
}

/* ===== Section headers ===== */
.section-head{
  margin-bottom:42px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1.5px;
  color:var(--secondary);
  text-transform:uppercase;
  margin-bottom:10px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:3px;
  border-radius:3px;
  background:var(--secondary);
  display:inline-block;
}
.section-head h2{margin-bottom:11px}
.section-head .section-lead{
  font-size:16px;
  color:var(--text-body);
  max-width:720px;
  margin-bottom:0;
}
.section-head-right .btn{height:40px}

/* ===== info-cards ===== */
.info-grid .col-lg-6{display:flex}
.info-card{
  width:100%;
  background:var(--bg-surface);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  padding:26px;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-xs);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
  height:100%;
}
.info-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
  border-color:#C9D6E2;
}
.info-card-top{
  display:flex;
  align-items:center;
  gap:20px;
  margin-bottom:15px;
}
.info-poster{
  flex:0 0 108px;
  width:108px;
  height:92px;
  border-radius:10px;
  overflow:hidden;
  position:relative;
  background:#EDF2F7;
}
.info-poster img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.info-card:hover .info-poster img{transform:scale(1.05)}
.info-tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:var(--teal);
  background:rgba(14,143,139,.1);
  border-radius:999px;
  padding:3px 11px;
  letter-spacing:.4px;
  margin-bottom:7px;
}
.info-card h3{
  font-size:18px;
  line-height:1.4;
  color:var(--text-main);
  margin-bottom:0;
}
.info-card-desc{
  color:var(--text-body);
  font-size:15px;
  line-height:1.85;
  margin-bottom:18px;
  flex:1;
}
.info-card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  padding-top:14px;
  border-top:1px dashed var(--border-color);
}
.mini-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--bg-soft);
  color:var(--text-body);
  border:1px solid var(--border-color);
  font-size:12px;
  border-radius:999px;
  padding:3px 11px;
}
.mini-chip i{color:var(--teal);font-size:11px}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:700;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  margin-left:auto;
  white-space:nowrap;
}
.card-link i{font-size:12px;transition:transform .2s ease}
.card-link:hover{color:var(--secondary);border-bottom-color:var(--secondary)}
.card-link:hover i{transform:translateX(3px)}
@media(max-width:575.98px){
  .info-card{padding:20px}
  .info-card-top{flex-direction:column;align-items:flex-start;gap:12px}
  .info-poster{width:100%;height:120px}
}

/* ===== guide ===== */
.guide-section{
  background:
    linear-gradient(180deg,#FFFFFF 0%,#F6F9FC 100%);
  border-top:1px solid var(--border-color);
  border-bottom:1px solid var(--border-color);
}
.guide-list .col-md-6{display:flex}
.guide-item{
  background:var(--bg-surface);
  border:1px solid var(--border-color);
  border-top:3px solid var(--secondary);
  border-radius:var(--radius-sm);
  padding:27px 25px 24px;
  height:100%;
  box-shadow:var(--shadow-xs);
  transition:box-shadow .25s ease,border-top-color .25s ease;
  position:relative;
}
.guide-item:hover{
  box-shadow:var(--shadow-md);
  border-top-color:var(--primary);
}
.guide-num{
  font-family:var(--font-num);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:20px;
  color:var(--secondary);
  width:48px;
  height:48px;
  border-radius:50%;
  background:rgba(232,86,58,.1);
  margin-bottom:15px;
}
.guide-item h4{
  margin-bottom:7px;
  color:var(--text-main);
}
.guide-item p{
  margin-bottom:0;
  font-size:14px;
  line-height:1.85;
  color:var(--text-body);
}

/* ===== rec ===== */
.rec-card{
  border-radius:var(--radius-md);
  padding:30px;
  height:100%;
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;
  flex-direction:column;
}
.rec-card:hover{transform:translateY(-4px)}
.rec-white{
  background:var(--bg-surface);
  border:1px solid var(--border-color);
  box-shadow:var(--shadow-xs);
}
.rec-white:hover{border-color:#B9C8D7;box-shadow:var(--shadow-md)}
.rec-light{
  background:#EEF5FA;
  border:1px solid #D4E2EE;
}
.rec-light:hover{border-color:#B2C9DC;box-shadow:var(--shadow-md)}
.rec-dark{
  background:var(--bg-deep);
  color:#fff;
  box-shadow:var(--shadow-md);
}
.rec-dark:hover{border-color:#16466A;box-shadow:var(--shadow-lg)}
.rec-icon{
  width:46px;
  height:46px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:19px;
  margin-bottom:18px;
}
.rec-white .rec-icon{background:rgba(14,58,93,.1);color:var(--primary)}
.rec-light .rec-icon{background:rgba(14,143,139,.12);color:var(--teal)}
.rec-dark .rec-icon{background:rgba(255,255,255,.14);color:#FFB49C}
.rec-card h4{font-size:19px;margin-bottom:8px}
.rec-dark h4, .rec-dark p{color:rgba(255,255,255,.92)}
.rec-card p{font-size:14px;line-height:1.8;flex:1;margin-bottom:18px;color:var(--text-body)}
.rec-dark p{color:rgba(255,255,255,.72)}
.rec-card .btn{align-self:flex-start}
@media(max-width:991.98px){
  .rec-card{margin-bottom:0}
}

/* ===== FAQ ===== */
.faq-section{background:var(--bg-surface);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.faq-grid .col-lg-6{display:flex}
.faq-item{
  background:var(--bg-soft);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  padding:20px 23px;
  transition:border-color .2s ease,box-shadow .2s ease;
  height:100%;
}
.faq-item:hover{
  border-color:#BED0E0;
  box-shadow:var(--shadow-xs);
}
.faq-q{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:6px;
  line-height:1.6;
}
.faq-q i{
  color:var(--secondary);
  font-size:13px;
  margin-top:6px;
}
.faq-a{
  font-size:13px;
  color:var(--text-body);
  line-height:1.85;
  margin:0 0 0 23px;
}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  background:
    linear-gradient(120deg,#FFFFFF 0%,#F1F6FA 60%,#E4EFF6 100%);
  border-top:1px solid var(--border-color);
  border-bottom:1px solid var(--border-color);
}
.cta-band h2{font-size:clamp(24px,2.6vw,31px)}
.cta-band-text p{margin-bottom:6px;color:var(--text-body)}
.cta-band .btn{
  flex-shrink:0;
  box-shadow:0 6px 14px rgba(232,86,58,.2);
}
@media(max-width:575.98px){
  .cta-band .btn{width:100%;max-width:360px}
}

/* ===== Footer ===== */
.footer{
  background:var(--bg-deep);
  color:rgba(255,255,255,.68);
  padding-top:68px;
  font-size:14px;
}
.footer-main{margin-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-brand .brand-mark{
  background:var(--secondary);
}
.footer h5{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{
  margin-bottom:10px;
  font-size:14px;
}
.footer-links a{
  color:rgba(255,255,255,.58);
  display:inline-flex;
  align-items:center;
  gap:7px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a::before{
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--secondary);
  flex:0 0 auto;
}
.footer-links a:hover{
  color:#fff;
  padding-left:3px;
}
.footer-copyright{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;
  font-size:12px;
  color:rgba(255,255,255,.35);
}
.footer-bottom-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:8px 16px;
}
@media(max-width:991.98px){
  .footer{padding-top:50px}
}

/* ===== misc ===== */
.mb-v-0{margin-bottom:0}
.text-muted-c{color:var(--text-muted)}
@media(max-width:767.98px){
  body{overflow-x:hidden}
}