/* roulang page: index */
:root {
  --brand: #176B87;
  --brand-dark: #125466;
  --brand-light: #E4F2F7;
  --accent: #FF7A45;
  --accent-dark: #E85D2A;
  --accent-soft: #FFF1EA;
  --success: #37B6A2;
  --page-bg: #F6FAFD;
  --card-bg: #FFFFFF;
  --title: #17324D;
  --body: #3F5A6B;
  --muted: #6A8795;
  --border: #DCE8F0;
  --footer-bg: #123442;
  --footer-text: #B7C9D4;
  --footer-title: #E8F0F4;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 12px 24px -8px rgba(20, 45, 70, 0.10);
  --shadow-hover: 0 4px 8px rgba(16, 24, 40, 0.06), 0 20px 40px -12px rgba(20, 45, 70, 0.16);
  --transition: all 0.25s ease-out;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  background: var(--page-bg);
  color: var(--body);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--title);
  font-family: inherit;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
}
a { color: var(--brand); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--brand-dark); }
img { display: block; max-width: 100%; }
ul { padding-left: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.container-xxl { max-width: 1260px; }
.container, .container-fluid, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
  --bs-gutter-x: 1.5rem;
}

.section-block { padding: 96px 0; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand-light);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}
.heading-title {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  margin: 18px 0 14px;
}
.heading-desc { color: var(--muted); font-size: 16px; max-width: 720px; margin-bottom: 0; }

.btn {
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  padding: 11px 24px;
  white-space: nowrap;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
}
.btn-xl { min-height: 52px; padding: 14px 32px; font-size: 16px; border-radius: 14px; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -8px rgba(255, 122, 69, 0.36);
}
.btn-outline-primary {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid #BCD6E4;
  color: var(--brand);
}
.btn-outline-primary:hover {
  background: var(--brand-light);
  border-color: var(--brand);
  color: var(--brand-dark);
  transform: translateY(-2px);
}
.btn-sm-outline {
  background: #fff;
  border: 1px solid #cbdce7;
  color: var(--brand);
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 10px;
  min-height: 42px;
  font-size: 14px;
}
.btn-sm-outline:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--brand-light);
}

/* ---------- Header 导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  padding: 0;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px) saturate(1.5);
  -webkit-backdrop-filter: blur(12px) saturate(1.5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 30px -8px rgba(16, 32, 48, 0.12);
  border-bottom-color: var(--border);
}
.site-header .navbar { padding: 12px 0; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; color: var(--title); }
.brand-logo .logo-mark {
  width: 42px;
  height: 42px;
  background: linear-gradient(145deg, #176B87 20%, #2FA8C4 100%);
  color: #fff;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  box-shadow: 0 8px 16px -6px rgba(23, 107, 135, 0.3);
}
.brand-logo .brand-text { font-size: 20px; font-weight: 800; color: var(--title); letter-spacing: 0.01em; display: block; line-height: 1.2; }
.brand-logo .brand-sub { font-size: 10px; font-weight: 400; color: var(--muted); display: block; line-height: 1.4; }

.nav-links .nav-link {
  color: var(--title);
  font-weight: 500;
  font-size: 15px;
  position: relative;
  padding: 10px 14px;
}
.nav-links .nav-link:hover,
.nav-links .nav-link.active { color: var(--brand); }
.nav-links .nav-link::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  opacity: 0;
  transform: scaleX(0.3);
  transition: var(--transition);
}
.nav-links .nav-link:hover::after,
.nav-links .nav-link.active::after { opacity: 1; transform: scaleX(1); }
.btn-header {
  background: var(--brand);
  color: #fff !important;
  border: 1px solid var(--brand);
  min-height: 42px;
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
}
.btn-header:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}

/* ---------- Hero ---------- */
.hero-section {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 148px 0 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #F6FAFD 0%, #EDF5FA 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: 70% 10%;
  opacity: 0.35;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(246, 250, 253, 0.97) 10%, rgba(246, 250, 253, 0.62) 60%, rgba(246, 250, 253, 0.78) 100%);
}
.hero-container { position: relative; z-index: 2; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.9);
  color: var(--brand);
  padding: 7px 15px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 8px rgba(20, 45, 70, 0.04);
}
.hero-title {
  font-size: clamp(34px, 4.6vw, 60px);
  font-weight: 800;
  color: var(--title);
  line-height: 1.28;
  letter-spacing: 0.01em;
  max-width: 760px;
  margin-bottom: 18px;
}
.hero-lead {
  font-size: 17px;
  color: var(--body);
  max-width: 660px;
  line-height: 1.85;
  margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.hero-note {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}
.hero-note i { color: var(--success); }

.portal-card {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  border-radius: 26px;
  padding: 26px;
  box-shadow: 0 18px 40px -14px rgba(23, 55, 78, 0.14);
  max-width: 430px;
  margin-left: auto;
}
.portal-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--title);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 18px;
}
.badge-doc {
  background: var(--brand-light);
  color: var(--brand);
  border: 1px solid #c4e1ed;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
}
.portal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.portal-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: #FBFDFF;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 16px;
  color: var(--title);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
}
.portal-tile i {
  font-size: 18px;
  color: var(--brand);
  margin-bottom: 4px;
}
.portal-tile .tile-arrow {
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
}
.portal-tile:hover {
  border-color: #B8D6E4;
  background: #ffffff;
  box-shadow: 0 10px 20px -10px rgba(20, 45, 70, 0.12);
  transform: translateY(-3px);
  color: var(--brand);
}
.portal-tip {
  margin-top: 18px;
  background: var(--brand-light);
  color: var(--brand-dark);
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.6;
  padding: 12px 14px;
}

/* ---------- Features ---------- */
.features-block { background: #fff; }
.feature-sticky { position: sticky; top: 112px; }
.section-head-box .section-tag { margin-bottom: 14px; }
.section-head-box h2 { font-size: clamp(26px, 3vw, 40px); font-weight: 800; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  margin-top: 18px;
  color: var(--brand);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.text-link:hover { color: var(--accent); border-color: var(--accent); }
.feature-list { padding: 0; }
.feature-item {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.feature-item:first-child { border-top: 1px solid var(--border); }
.feature-item:hover h3 { color: var(--brand); }
.feature-index {
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  background: var(--brand);
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px -8px rgba(23, 107, 135, 0.55);
}
.feature-item h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; transition: var(--transition); }
.feature-item p { color: var(--muted); margin-bottom: 0; font-size: 15px; line-height: 1.8; }

/* ---------- Demo ---------- */
.demo-block { background: var(--page-bg); }
.demo-media { position: relative; }
.demo-window {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.demo-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #F0F7FB;
  border-bottom: 1px solid var(--border);
}
.demo-dots { display: flex; gap: 6px; }
.demo-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c7d9e4;
}
.demo-chrome .address {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--muted);
  flex: 1;
  font-family: "SFMono-Regular", Consolas, monospace;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
.demo-body img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; }
.demo-caption { padding: 16px 18px; font-size: 14px; color: var(--muted); }

.steps-wrap { padding: 8px 0 0; }
.step-item {
  position: relative;
  padding-left: 60px;
  padding-bottom: 28px;
}
.step-item::before {
  content: '';
  position: absolute;
  left: 18px;
  top: 34px;
  bottom: 6px;
  border-left: 1px dashed #B8CEDA;
}
.step-item:last-child::before { display: none; }
.step-no {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  background: var(--brand-light);
  color: var(--brand);
  border-radius: 12px;
  font-size: 13px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.step-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.step-item p { font-size: 15px; color: var(--muted); margin-bottom: 0; max-width: 280px; }

/* ---------- Proof ---------- */
.proof-block { background: #fff; }
.proof-left h2 { font-size: clamp(26px, 3vw, 38px); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.proof-card {
  background: #F6FAFD;
  border: 1px solid #E7EFF5;
  border-radius: 18px;
  padding: 22px 18px;
  text-align: center;
  transition: var(--transition);
}
.proof-card:hover { background: #fff; box-shadow: var(--shadow); transform: translateY(-4px); }
.proof-card i { font-size: 22px; color: var(--brand); margin-bottom: 8px; }
.proof-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--title);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.proof-label { font-size: 13px; color: var(--muted); }
.proof-note {
  background: var(--brand-light);
  border-left: 4px solid var(--brand);
  border-radius: 0 18px 18px 0;
  padding: 18px 22px;
  color: var(--title);
  font-size: 15px;
  line-height: 1.9;
  margin-top: 28px;
}
.proof-note strong { color: var(--brand); }

/* ---------- News CMS ---------- */
.news-section { background: var(--page-bg); }
.news-header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 40px; }
.news-header .heading-desc { margin-top: 8px; }

.news-wrap { display: flex; flex-wrap: wrap; }
.news-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-5px); }
.news-card-link { display: block; }
.news-thumb { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease-out; }
.news-card-link:hover img { transform: scale(1.04); }
.news-card-body { padding: 24px; }
.news-meta-top { margin-bottom: 10px; }
.badge-cat {
  display: inline-block;
  background: var(--brand-light);
  color: var(--brand);
  border: 1px solid #C5E1EC;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  line-height: 1.6;
}
.news-title { font-size: 21px; font-weight: 700; margin: 6px 0 10px; }
.news-title a { color: var(--title); }
.news-title a:hover { color: var(--brand); }
.news-summary {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.news-date { color: var(--muted); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }
.read-more { font-size: 13px; font-weight: 600; color: var(--brand); }

.news-side-stack { display: flex; flex-direction: column; gap: 14px; height: 100%; }
.news-inline-card {
  flex: 1;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.news-inline-card:hover { box-shadow: var(--shadow); border-color: #bcd6e4; transform: translateY(-2px); }
.news-inline-title { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.news-inline-title a { color: var(--title); }
.news-inline-title a:hover { color: var(--brand); }
.news-inline-summary { color: var(--muted); font-size: 14px; line-height: 1.7; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; }
.news-inline-meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--muted); margin-top: 12px; }

.side-guide-link {
  background: var(--brand-light);
  border: 1px dashed #8ABDD0;
  border-radius: 12px;
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 500;
  padding: 12px 14px;
  display: block;
}
.side-guide-link:hover { background: #d8eef5; color: var(--brand); }

.news-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 34px;
  border: 1px dashed #B4CAD6;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.6);
  color: var(--muted);
  font-size: 15px;
}
.news-empty i { font-size: 26px; color: #A8C4D2; }

/* ---------- Pricing / Plan ---------- */
.plan-block { background: #fff; }
.plan-table {
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
}
.plan-row {
  display: grid;
  grid-template-columns: 200px 1fr 200px;
  gap: 20px;
  align-items: center;
  padding: 28px 32px;
  border-bottom: 1px solid var(--border);
}
.plan-row:last-child { border-bottom: 0; }
.plan-row-normal { background: #FBFDFF; }
.plan-row-featured {
  position: relative;
  background: linear-gradient(90deg, #F0F7FA 0%, #EAF4F9 100%);
  border-top: 1px solid #B8D6E4;
  border-bottom: 1px solid #B8D6E4;
  padding-top: 38px;
  padding-bottom: 38px;
}
.plan-badge {
  position: absolute;
  top: -12px;
  left: 32px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  box-shadow: 0 6px 12px -6px rgba(255, 122, 69, 0.5);
}
.plan-name { font-size: 19px; font-weight: 800; color: var(--title); }
.plan-featured .plan-name { font-size: 21px; }
.plan-featured .plan-name i { color: var(--accent); margin-left: 6px; }
.plan-points { padding: 0; margin: 0; }
.plan-points li {
  position: relative;
  font-size: 14px;
  color: var(--body);
  padding: 3px 0 3px 22px;
}
.plan-points li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 13px;
  color: var(--success);
  position: absolute;
  left: 0;
  top: 4px;
}
.plan-action { text-align: right; }

/* ---------- FAQ ---------- */
.faq-block { background: var(--page-bg); }
.faq-wrap { max-width: 900px; margin: 0 auto; }
.faq-heading .section-tag { margin-bottom: 10px; }
.faq-heading h2 { font-size: clamp(26px, 3vw, 38px); margin-bottom: 6px; }
.faq-heading p { color: var(--muted); margin-bottom: 30px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 2px 2px rgba(16, 24, 40, 0.02);
  margin-bottom: 14px;
  padding: 0 20px;
  overflow: hidden;
}
.faq-accordion-btn {
  background: transparent;
  width: 100%;
  border: none;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--title);
  cursor: pointer;
  min-height: 56px;
}
.faq-accordion-btn .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-light);
  color: var(--brand);
  border-radius: 8px;
  font-size: 14px;
  transition: var(--transition);
}
.faq-accordion-btn[aria-expanded="true"] .faq-icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-item.active { border-color: #c6d7e2; }
.faq-body { padding-bottom: 18px; color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.faq-body p { margin-bottom: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05)),
    var(--footer-bg);
  padding: 70px 0;
}
.cta-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.cta-inner h2 { color: #F8FAFC; font-size: clamp(25px, 3vw, 36px); margin-bottom: 12px; }
.cta-inner p { color: var(--footer-text); font-size: 16px; margin-bottom: 28px; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: center; }
.cta-buttons .btn-light-accent {
  background: #fff;
  color: var(--brand);
  border: 1px solid #fff;
  font-weight: 600;
  padding: 11px 24px;
  border-radius: 12px;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.cta-buttons .btn-light-accent:hover { background: var(--accent); color: #fff; border-color: var(--accent); transform: translateY(-2px); }
.cta-buttons .btn-outline-light-custom {
  background: transparent;
  color: #fff;
  border: 1px solid #79A7B8;
  font-weight: 600;
  padding: 11px 24px;
  border-radius: 12px;
  min-height: 46px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cta-buttons .btn-outline-light-custom:hover { background: rgba(255,255,255,0.08); color: #fff; border-color: #fff; }

/* ---------- Footer ---------- */
.site-footer { background: var(--footer-bg); color: var(--footer-text); padding-top: 60px; }
.footer-title { color: var(--footer-title); font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.footer-brand .brand-logo .brand-text { color: #fff; }
.footer-brand .brand-logo .logo-mark { background: rgba(255, 255, 255, 0.82); color: var(--brand); }
.footer-desc { font-size: 14px; color: var(--footer-text); margin-top: 12px; max-width: 300px; line-height: 1.8; }
.footer-links { padding: 0; margin: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  color: var(--footer-text);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 3px 0;
}
.footer-links a i { font-size: 11px; color: #6E94A3; }
.footer-links a:hover { color: #fff; }
.footer-contact-item { font-size: 14px; display: flex; gap: 10px; margin-bottom: 10px; color: var(--footer-text); }
.footer-contact-item i { color: #7EA8B8; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 48px;
  padding: 20px 0;
  color: #8DAEBB;
  font-size: 13px;
}
.footer-bottom .copyright { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* ---------- Floating ---------- */
.back-top-btn {
  position: fixed;
  right: 26px;
  bottom: 110px;
  width: 48px;
  height: 48px;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  z-index: 1020;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  box-shadow: 0 12px 22px -10px rgba(20, 45, 70, 0.45);
}
.back-top-btn.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top-btn:hover { background: var(--brand-dark); color: #fff; transform: translateY(-4px); }
.mobile-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1040;
  display: none;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 -6px 18px rgba(20, 45, 70, 0.08);
  gap: 8px;
  justify-content: space-between;
}
.mobile-dock .dock-link {
  flex: 1;
  padding: 10px 8px;
  border-radius: 12px;
  background: var(--brand-light);
  color: var(--brand);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
}
.mobile-dock .dock-link.dock-primary { background: var(--accent); color: #fff; }
.mobile-dock .dock-link:hover { transform: translateY(-1px); }

/* ---------- Responsive ---------- */
@media (max-width: 1199px) {
  .plan-row { grid-template-columns: 160px 1fr 170px; gap: 14px; padding: 24px; }
}
@media (max-width: 991px) {
  .section-block { padding: 70px 0; }
  .site-header .navbar { padding: 10px 0; }
  .navbar-collapse {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 16px;
    margin: 12px 0 4px;
    box-shadow: 0 16px 30px -12px rgba(16, 32, 48, 0.18);
  }
  .navbar-collapse .nav-link { padding: 12px 12px !important; border-radius: 10px; }
  .navbar-collapse .nav-link:hover { background: var(--brand-light); }
  .navbar-collapse .nav-link::after { display: none; }
  .nav-actions { padding: 8px 0 4px; }
  .hero-section { padding: 118px 0 54px; min-height: auto; }
  .hero-title { max-width: 100%; }
  .portal-grid { grid-template-columns: 1fr 1fr; }
  .portal-card { margin: 0; }
  .feature-sticky { position: static; margin-bottom: 16px; }
  .feature-item { gap: 14px; }
  .plan-row { grid-template-columns: 1fr; gap: 10px; padding: 24px 20px; }
  .plan-action { text-align: left; }
  .plan-row-featured { padding-top: 34px; padding-bottom: 28px; }
  .proof-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .mobile-dock { display: flex; }
  body { padding-bottom: 72px; }
  .back-top-btn { display: none; }
}
@media (max-width: 767px) {
  .section-block { padding: 56px 0; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-card { text-align: left; display: flex; gap: 14px; align-items: center; padding: 18px; }
  .proof-card i { margin-bottom: 0; }
  .portal-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions .btn { width: 100%; }
  .cta-buttons .btn-light-accent, .cta-buttons .btn-outline-light-custom { width: 100%; justify-content: center; }
  .brand-logo .brand-text { font-size: 18px; }
  .brand-logo .brand-sub { display: none; }
  .news-header { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 32px; }
  .hero-kicker { font-size: 12px; }
  .portal-grid { grid-template-columns: 1fr; }
  .faq-wrap { grid-template-columns: 1fr; }
  .brand-logo .logo-mark { width: 36px; height: 36px; font-size: 15px; }
  .mobile-dock .dock-link { font-size: 13px; flex-direction: column; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

/* roulang page: category1 */
:root {
  --primary: #176B87;
  --primary-dark: #0E5368;
  --cta: #FF7A45;
  --cta-dark: #E85F2A;
  --accent: #37B6A2;
  --body-bg: #F6FAFD;
  --body-text: #3F5A6B;
  --heading: #17324D;
  --muted: #6A8795;
  --border: #DCE8F0;
  --surface: #FFFFFF;
  --dark: #123442;
  --dark-soft: #102D3C;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 1px 2px rgba(16,24,40,.04), 0 12px 24px -8px rgba(16,32,48,.10);
  --shadow-hover: 0 2px 4px rgba(16,24,40,.05), 0 22px 34px -12px rgba(16,45,70,.16);
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  background: var(--body-bg);
  color: var(--body-text);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; object-fit: cover; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary-dark); }
h1, h2, h3, h4, h5, h6 { color: var(--heading); font-weight: 700; letter-spacing: .01em; line-height: 1.4; }
.container-xxl { max-width: 1240px; }
section { scroll-margin-top: 96px; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.btn { min-height: 44px; border-radius: var(--radius-sm); padding: .625rem 1.4rem; font-weight: 600; letter-spacing: .01em; transition: all .25s ease-out; }
.btn-brand {
  --bs-btn-bg: var(--cta);
  --bs-btn-border-color: var(--cta);
  --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--cta-dark);
  --bs-btn-hover-border-color: var(--cta-dark);
  --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: #D54F1E;
  --bs-btn-active-border-color: #D54F1E;
  box-shadow: 0 10px 24px -10px rgba(255,122,69,.5);
}
.btn-outline-brand {
  --bs-btn-color: var(--primary);
  --bs-btn-border-color: #BBD3DD;
  --bs-btn-bg: transparent;
  --bs-btn-hover-bg: rgba(23,107,135,.06);
  --bs-btn-hover-color: var(--primary-dark);
  --bs-btn-hover-border-color: var(--primary);
  --bs-btn-active-bg: rgba(23,107,135,.12);
  --bs-btn-active-border-color: var(--primary);
  --bs-btn-active-color: var(--primary-dark);
}
.btn-header {
  background: var(--cta);
  color: #fff;
  border: 1px solid var(--cta);
  border-radius: 999px;
  min-height: 42px;
  padding: .45rem 1.15rem;
  font-size: .9rem;
  font-weight: 600;
  box-shadow: 0 8px 18px -8px rgba(255,122,69,.55);
  transition: all .25s ease;
}
.btn-header:hover { background: var(--cta-dark); border-color: var(--cta-dark); color: #fff; transform: translateY(-2px); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(255,255,255,.76);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid rgba(220,232,240,.85);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled { background: rgba(255,255,255,.94); box-shadow: 0 6px 20px rgba(16,32,48,.08); }
.hero-header { background: rgba(255,255,255,.72); }
.navbar { padding: .85rem 0; }
.brand-logo { display: inline-flex; align-items: center; gap: .6rem; }
.brand-logo .logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(145deg, #176B87, #37B6A2);
  color: #fff; font-size: 1.05rem;
  box-shadow: 0 6px 14px -6px rgba(23,107,135,.8);
}
.brand-text {
  display: flex; flex-direction: column;
  font-weight: 800; font-size: 1.12rem; color: var(--heading);
  line-height: 1.2; letter-spacing: .02em;
}
.brand-sub { font-size: .68rem; font-weight: 500; color: var(--muted); letter-spacing: .04em; margin-top: 3px; }
.nav-links .nav-link {
  position: relative;
  color: #17324d;
  font-size: .95rem;
  font-weight: 600;
  padding: .5rem 1rem;
  border-radius: 999px;
  transition: color .25s ease, background .25s ease;
}
.nav-links .nav-link:hover,
.nav-links .nav-link:focus { color: var(--primary); background: rgba(23,107,135,.06); }
.nav-links .nav-link.active { color: var(--primary); background: rgba(23,107,135,.09); }
.nav-links .nav-link.active::after {
  content: ""; position: absolute; left: 1rem; right: 1rem; bottom: 3px;
  height: 2px; border-radius: 2px; background: var(--cta);
}
.navbar-toggler { border: none; padding: .55rem .65rem; border-radius: 10px; background: rgba(255,255,255,.45); }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(23,107,135,.2) !important; }
.navbar-toggler-icon { width: 20px; height: 20px; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(23,50,77,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e"); }
.page-hero {
  position: relative;
  background:
    linear-gradient(90deg, rgba(246,250,253,.95) 0%, rgba(255,255,255,.78) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  padding: 110px 0 72px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(255,255,255,.38) 0%, rgba(246,250,253,.1) 70%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.crumbs {
  display: flex; align-items: center; gap: .5rem;
  font-size: .85rem; color: var(--muted);
  margin-bottom: 1.1rem;
}
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--primary); }
.crumbs .sep { color: #B9CBD5; }
.crumbs .current { color: var(--primary); font-weight: 600; }
.entry-title {
  margin: .2rem 0 .8rem;
  font-size: clamp(2.05rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: .02em;
}
.entry-title span.accent { color: var(--cta); }
.entry-lead { max-width: 710px; font-size: 1.08rem; color: var(--body-text); margin-bottom: 1.5rem; }
.hero-visual-card {
  background: rgba(255,255,255,.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.visual-card-img { height: 210px; width: 100%; background: #D8ECF2; }
.visual-card-img img { width: 100%; height: 100%; object-fit: cover; }
.visual-card-content { padding: 1.25rem 1.35rem 1.45rem; }
.visual-card-tag { font-size: .8rem; color: var(--primary); background: rgba(23,107,135,.1); border-radius: 999px; padding: .2rem .72rem; display: inline-block; margin-bottom: .7rem; font-weight: 600; }
.visual-card-content h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .35rem; }
.visual-card-content p { font-size: .9rem; color: var(--muted); margin: 0; line-height: 1.6; }
.section { padding: 88px 0; }
.section-tone { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-kicker { display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; font-weight: 700; color: var(--cta); background: rgba(255,122,69,.1); padding: .25rem .8rem; border-radius: 999px; margin-bottom: .9rem; letter-spacing: .05em; }
.section-title { font-size: clamp(1.65rem, 2.8vw, 2.4rem); font-weight: 800; margin-bottom: .9rem; }
.section-desc { max-width: 760px; color: var(--muted); font-size: 1rem; margin-bottom: 2.2rem; }
.feature-left { position: sticky; top: 120px; }
.feature-flex-list { display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.feature-flex-item { display: flex; gap: 1.1rem; padding: 1.35rem 0; border-bottom: 1px solid var(--border); }
.feature-num {
  display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; flex: 0 0 42px;
  border-radius: 12px; background: rgba(23,107,135,.1);
  color: var(--primary); font-weight: 800; font-size: .98rem;
  font-variant-numeric: tabular-nums; margin-top: .1rem;
}
.feature-flex-item h3 { font-size: 1.06rem; font-weight: 700; margin-bottom: .2rem; }
.feature-flex-item p { color: var(--muted); margin: 0; font-size: .93rem; line-height: 1.6; }
.media-card {
  border-radius: var(--radius-lg);
  background: #eaf4f8;
  overflow: hidden;
  height: 100%;
  min-height: 240px;
  border: 1px solid #d6e4eb;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, transform .3s ease;
}
.media-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.media-card img { width: 100%; height: 280px; object-fit: cover; }
.media-card-body { padding: 1.5rem 1.75rem 1.8rem; }
.chip-list { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .8rem; }
.chip {
  font-size: .82rem; font-weight: 600; color: var(--primary);
  background: #E4F2F7; border: 1px solid #CDE3EC;
  padding: .22rem .8rem; border-radius: 999px;
}
.step-card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 1.6rem 1.4rem;
  height: 100%;
  box-shadow: 0 1px 2px rgba(16,24,40,.03);
  transition: transform .3s ease, box-shadow .3s ease;
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-card .step-num {
  color: var(--primary);
  font-weight: 800;
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: .8rem;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: .45rem; }
.step-card p { margin: 0; font-size: .95rem; color: var(--muted); }
.timeline-process { position: relative; padding-left: 2rem; }
.timeline-process::before {
  content: ""; position: absolute; top: 8px; left: 8px;
  width: 2px; bottom: 8px; background: #DCE8F0;
}
.timeline-item { position: relative; padding-bottom: 1.6rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: -2rem; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--surface); border: 3px solid var(--cta);
  box-shadow: 0 0 0 5px rgba(255,122,69,.12);
}
.timeline-item h3 { font-size: 1.04rem; font-weight: 700; margin-bottom: .2rem; }
.timeline-item p { color: var(--muted); margin: 0; font-size: .94rem; }
.guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, transform .3s ease;
  height: 100%;
}
.guide-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.guide-card .guide-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 16px;
  background: rgba(23,107,135,.1);
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 1.1rem;
}
.guide-card h3 { font-size: 1.2rem; margin-bottom: .4rem; }
.guide-card p { color: var(--muted); font-size: .95rem; }
.faq-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.accordion-item {
  border: 1px solid var(--border);
  border-radius: 16px !important;
  margin-bottom: 14px;
  background: #fff;
  overflow: hidden;
  box-shadow: none;
}
.accordion-item .accordion-button {
  border-radius: 16px !important;
  background: transparent;
  color: var(--heading);
  font-size: 1rem;
  font-weight: 600;
  padding: 1.15rem 1.4rem;
  box-shadow: none;
}
.accordion-item .accordion-button:not(.collapsed) {
  background: rgba(23,107,135,.04);
  border-bottom: 1px solid var(--border);
  color: var(--primary);
}
.accordion-button:focus { box-shadow: 0 0 0 3px rgba(23,107,135,.18) !important; }
.accordion-button::after {
  background-image: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\2b";
  color: var(--primary);
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  transition: transform .3s ease;
}
.accordion-button:not(.collapsed)::after { transform: rotate(45deg); }
.accordion-body { color: var(--body-text); font-size: .95rem; padding: 1.1rem 1.4rem 1.3rem; line-height: 1.8; }
.related-block { background: transparent; }
.cta-strip {
  background: var(--dark);
  border-radius: 24px;
  padding: 46px 44px;
  color: rgba(255,255,255,.88);
  overflow: hidden;
}
.cta-strip h2 { color: #fff; font-weight: 800; margin-bottom: .5rem; }
.cta-strip p { color: #B7C9D4; margin-bottom: 1.6rem; }
.cta-strip .btn-brand { margin-right: .5rem; }
.btn-light-brand {
  background: #fff;
  color: var(--dark);
  border-radius: 12px;
  min-height: 46px;
  font-weight: 700;
  padding: .6rem 1.4rem;
}
.btn-light-brand:hover { background: #E4F2F7; color: var(--dark); transform: translateY(-2px); }
.chapter-divider { display: flex; align-items: center; gap: .5rem; color: #B9CBD5; }
.site-footer {
  background: var(--dark-soft);
  color: #B7C9D4;
  padding: 66px 0 28px;
  margin-top: 80px;
}
.site-footer .footer-brand .brand-text { color: #E8F0F4 !important; }
.site-footer .footer-brand .brand-sub { color: #849aa6; }
.site-footer .footer-desc { font-size: .92rem; margin-top: 1rem; max-width: 340px; color: #B7C9D4; }
.footer-title {
  color: #E8F0F4;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: .02em;
}
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: .6rem; }
.footer-links a { color: #B7C9D4; font-size: .92rem; }
.footer-links a i { color: var(--accent); font-size: .7rem; margin-right: .45rem; }
.footer-links a:hover { color: #fff; }
.footer-contact-item { display: flex; align-items: flex-start; gap: .6rem; font-size: .9rem; margin-bottom: .75rem; }
.footer-contact-item i { color: var(--accent); margin-top: .35rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 38px;
  padding-top: 22px;
  font-size: .82rem;
  color: #7F9AA8;
}
.footer-bottom .copyright { display: flex; align-items: center; gap: .5rem; }
.footer-bottom a { color: #B7C9D4; }
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: .4rem;
  background: var(--cta);
  color: #fff;
  border: none;
  min-height: 42px;
  padding: .35rem 1rem .35rem 1.1rem;
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 600;
  box-shadow: 0 12px 24px -8px rgba(255,122,69,.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease, transform .3s ease;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--cta-dark); color: #fff; transform: translateY(-3px); }
@media (max-width: 991.98px) {
  .navbar { padding: .45rem 0; }
  .navbar-collapse {
    background: rgba(255,255,255,.96);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem 1.1rem;
    box-shadow: var(--shadow-card);
    margin-top: .75rem;
  }
  .nav-links .nav-link { padding: .75rem .9rem; border-radius: 12px; }
  .nav-actions { margin-top: .8rem; }
  .section { padding: 60px 0; }
  .page-hero { padding: 72px 0 50px; }
  .feature-left { position: relative; top: auto; margin-bottom: 1.5rem; }
  .media-card img { height: 220px; }
}
@media (max-width: 767.98px) {
  body { font-size: 15px; }
  .page-hero { padding: 58px 0 42px; }
  .entry-title { font-size: 1.8rem; }
  .entry-lead { font-size: .97rem; }
  .btn-header { font-size: .85rem; }
  .section-title { font-size: 1.55rem; }
  .media-card-body { padding: 1.15rem 1.2rem; }
  .timeline-process { padding-left: 1.6rem; }
  .timeline-dot { left: -1.6rem; }
  .cta-strip { padding: 32px 24px; }
  .footer-bottom .copyright { flex-direction: column; align-items: flex-start; gap: .4rem; }
  .hero-visual-card { margin-top: 1.5rem; }
}
@media (max-width: 520px) {
  .brand-sub { display: none; }
  .nav-actions .btn-header { width: 100%; justify-content: center; font-size: .88rem; }
  .navbar .container { padding-left: .9rem; padding-right: .9rem; }
  .cta-strip .btn-brand,
  .cta-strip .btn-light-brand { display: inline-flex; width: 100%; justify-content: center; margin-bottom: .5rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* roulang page: article */
:root{
  --primary:#176B87;
  --primary-dark:#115466;
  --primary-soft:#E4F2F7;
  --accent:#FF7A45;
  --accent-dark:#E96230;
  --accent-soft:#FFF1EB;
  --green:#37B6A2;
  --body-bg:#F6FAFD;
  --surface:#FFFFFF;
  --title-color:#17324D;
  --text-body:#3F5A6B;
  --text-muted:#6A8795;
  --line:#DCE8F0;
  --footer-bg:#123442;
  --footer-text:#B7C9D4;
  --footer-title:#E8F0F4;
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.04), 0 6px 16px -8px rgba(20,45,70,.08);
  --shadow-card:0 1px 2px rgba(16,24,40,.04), 0 12px 24px -8px rgba(20,45,70,.10);
  --shadow-hover:0 2px 4px rgba(16,24,40,.05), 0 20px 36px -12px rgba(20,45,70,.18);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.25,.46,.45,.94);
}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--body-bg);
  color:var(--text-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
*,*::before,*::after{box-sizing:border-box}
.container-xxl{max-width:1280px}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;object-fit:cover}
h1,h2,h3,h4,h5,h6{color:var(--title-color);font-weight:700;line-height:1.35;letter-spacing:.01em;margin:0 0 .5em}
p{line-height:1.8;color:var(--text-body)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}
.site-header{
  position:sticky;
  top:0;
  z-index:1080;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(14px) saturate(1.5);
  backdrop-filter:blur(14px) saturate(1.5);
  border-bottom:1px solid rgba(220,232,240,.9);
  box-shadow:0 4px 16px rgba(16,32,48,.06);
}
.article-page .site-header{
  background:rgba(255,255,255,.98);
  box-shadow:0 4px 20px rgba(16,32,48,.08);
}
.site-header .navbar{min-height:72px;padding-top:10px;padding-bottom:10px}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--title-color)!important;
  line-height:1.25;
}
.logo-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(23,107,135,.16);
  font-size:18px;
  flex:0 0 40px;
}
.brand-text{
  font-weight:800;
  color:var(--title-color);
  letter-spacing:.01em;
}
.brand-sub{
  display:block;
  font-size:11px;
  color:var(--text-muted);
  font-weight:400;
  letter-spacing:.03em;
  line-height:1.4;
}
.nav-links .nav-link{
  color:var(--title-color);
  font-weight:500;
  font-size:15px;
  padding:10px 16px!important;
  border-radius:var(--radius-sm);
  margin:0 2px;
  position:relative;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links .nav-link:hover{
  color:var(--primary);
  background:rgba(23,107,135,.05);
}
.nav-links .nav-link.active{
  color:var(--primary);
  font-weight:600;
}
.nav-links .nav-link.active::after{
  content:'';
  position:absolute;
  left:16px;
  right:16px;
  bottom:5px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-actions .btn-header{
  padding:10px 22px;
  font-size:14px;
  font-weight:600;
  border-radius:12px;
  background:linear-gradient(135deg,#FF7A45 0%,#F96D3A 100%);
  color:#fff;
  border:none;
  box-shadow:0 8px 18px -6px rgba(255,122,69,.45);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.nav-actions .btn-header:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 24px -8px rgba(255,122,69,.55);
  color:#fff;
  background:#ea6a38;
}
.navbar-toggler{
  border:1px solid var(--line);
  border-radius:10px;
  padding:7px 10px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(23,107,135,.15)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(23,50,77,.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
@media (max-width:991.98px){
  .site-header .navbar{min-height:62px;padding:8px 0}
  .navbar-collapse{
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow-card);
    padding:12px 0;
    margin-top:12px;
  }
  .nav-links .nav-link{padding:12px 18px!important}
  .nav-links .nav-link.active::after{display:none}
  .nav-links .nav-link.active{background:var(--primary-soft)}
}
.article-lede{
  background:
    linear-gradient(180deg,rgba(246,250,253,.96) 0%,rgba(246,250,253,.88) 65%,#F6FAFD 100%),
    url('/assets/images/backpic/back-1.webp') center/cover fixed;
  padding:46px 0 0;
  border-bottom:1px solid rgba(220,232,240,.7);
}
.breadcrumb-nav{
  padding:18px 0;
  font-size:13px;
  color:var(--text-muted);
}
.breadcrumb-nav ol{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.breadcrumb-nav li{display:inline-flex;align-items:center;gap:6px}
.breadcrumb-nav .sep{color:var(--line);font-size:12px}
.breadcrumb-nav a{color:var(--text-muted)}
.breadcrumb-nav a:hover{color:var(--primary)}
.breadcrumb-nav .current{color:var(--title-color);font-weight:500;max-width:300px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.article-layout-wrap{padding:26px 0 0}
.article-card{
  background:var(--surface);
  border:1px solid rgba(220,232,240,.85);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:22px 22px 26px;
  margin-bottom:28px;
  scroll-margin-top:110px;
}
.article-head{margin-bottom:18px}
.article-title{
  font-size:36px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.3;
  margin-bottom:14px;
  color:var(--title-color);
}
.article-excerpt-block{
  background:var(--body-bg);
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  padding:16px 18px;
  border-radius:0 12px 12px 0;
  margin:20px 0 16px;
  font-size:15px;
  color:var(--text-muted);
}
.article-excerpt-block strong{
  display:block;
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  margin-bottom:6px;
  letter-spacing:.05em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
  align-items:center;
  margin-top:14px;
  font-size:13px;
  color:var(--text-muted);
}
.article-meta i{color:var(--primary);margin-right:5px}
.article-meta .badge-soft{
  display:inline-flex;
  align-items:center;
  background:var(--primary-soft);
  color:var(--primary);
  padding:3px 10px;
  border-radius:var(--radius-pill);
  font-weight:600;
  font-size:12px;
}
.article-cover-wrap{
  border-radius:16px;
  overflow:hidden;
  margin:22px 0 26px;
  background:#eaf2f6;
  border:1px solid var(--line);
}
.article-cover-wrap img{
  width:100%;
  aspect-ratio:16/9;
}
.article-content{
  font-size:16px;
  line-height:1.85;
  color:var(--text-body);
}
.article-content p{margin-bottom:1.2em}
.article-content h2{
  font-size:26px;
  font-weight:700;
  margin:1.8em 0 .8em;
  color:var(--title-color);
  padding-bottom:.3em;
  border-bottom:1px solid var(--line);
}
.article-content h3{
  font-size:20px;
  font-weight:700;
  margin:1.6em 0 .7em;
  color:var(--title-color);
}
.article-content blockquote{
  border-left:4px solid var(--primary);
  background:rgba(23,107,135,.06);
  padding:16px 22px;
  border-radius:0 12px 12px 0;
  color:var(--text-body);
  margin:1.4em 0;
}
.article-content blockquote p{margin-bottom:0}
.article-content ul,.article-content ol{padding-left:22px;margin:1em 0}
.article-content li{margin:.5em 0}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.4em 0;
  border:1px solid var(--line);
  display:block;
  overflow-x:auto;
  border-radius:12px;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  padding:12px 14px;
  font-size:15px;
  background:#fff;
}
.article-content th{
  background:var(--primary-soft);
  font-weight:600;
  color:var(--title-color);
}
.article-content img{
  border-radius:14px;
  border:1px solid var(--line);
  margin:1.2em 0;
}
.article-content pre{
  background:#f4f7fa;
  padding:18px;
  border-radius:12px;
  overflow-x:auto;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:14px;
  border:1px solid var(--line);
}
.article-content code{background:#eef3f6;color:#155f74;padding:2px 6px;border-radius:6px;font-size:.9em}
.article-content a{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(23,107,135,.35)}
.article-content a:hover{color:var(--accent)}
.article-tags{
  margin:28px 0 0;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.article-tags .tag{
  display:inline-flex;
  align-items:center;
  background:var(--body-bg);
  border:1px solid var(--line);
  color:var(--text-body);
  font-size:13px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
}
.article-tags .tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.article-extras{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin:26px 0 10px;
}
.article-extras .btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:12px;
  font-weight:600;
  font-size:14px;
  border:none;
  transition:all .25s var(--ease);
}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 18px -8px rgba(255,122,69,.6);
}
.btn-accent:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 24px -8px rgba(255,122,69,.7);
}
.btn-outline-line{
  background:transparent;
  color:var(--title-color);
  border:1px solid var(--line)!important;
}
.btn-outline-line:hover{
  background:var(--primary-soft);
  color:var(--primary);
  border-color:var(--primary)!important;
  transform:translateY(-2px);
  box-shadow:var(--shadow-sm);
}
.btn-primary-custom{
  background:var(--primary);
  color:#fff;
  border:none;
}
.btn-primary-custom:hover{
  background:var(--primary-dark);
  color:#fff;
}
.btn.focus-visible,.btn:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
.empty-state{
  text-align:center;
  padding:80px 24px;
}
.empty-state i{
  font-size:44px;
  color:var(--primary);
  margin-bottom:18px;
  background:var(--primary-soft);
  width:86px;
  height:86px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.empty-state h1{
  font-size:30px;
  font-weight:700;
  margin-bottom:10px;
}
.empty-state p{margin-bottom:26px;color:var(--text-muted)}
.article-sidebar{
  position:relative;
}
.side-widget{
  border:1px solid rgba(220,232,240,.85);
  background:var(--surface);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:24px;
  margin-bottom:22px;
}
.side-widget-title{
  font-size:16px;
  font-weight:700;
  color:var(--title-color);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
}
.side-widget-title i{
  color:var(--primary);
  font-size:15px;
}
.side-about-txt{
  font-size:14px;
  color:var(--text-muted);
  margin-bottom:14px;
  line-height:1.75;
}
.side-nav-list{
  list-style:none;
  padding:0;
  margin:0;
}
.side-nav-list li+li{border-top:1px dashed var(--line)}
.side-nav-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 2px;
  font-size:14px;
  color:var(--title-color);
  font-weight:500;
}
.side-nav-list a i{
  width:24px;
  height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:7px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12px;
}
.side-nav-list a span{
  flex:1;
}
.side-nav-list a .fa-arrow-right{
  background:transparent;
  color:var(--text-muted);
  font-size:11px;
}
.side-nav-list a:hover span{color:var(--primary)}
.side-cta-card{
  background:linear-gradient(145deg,#123442 0%,#173f50 100%);
  color:var(--footer-text);
  border-radius:20px;
  padding:28px 24px;
  border:1px solid rgba(255,255,255,.06);
  box-shadow:var(--shadow-card);
}
.side-cta-card h3{
  color:#fff;
  font-size:18px;
}
.side-cta-card p{
  color:var(--footer-text);
  font-size:14px;
  margin-bottom:18px;
}
.side-cta-card .btn-accent{width:100%;justify-content:center}
.side-img-card{
  height:160px;
  background:url('/assets/images/coverpic/cover-2.png') center/cover;
  border-radius:14px;
  display:flex;
  align-items:flex-end;
  padding:14px;
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.15);
  box-shadow:inset 0 -60px 50px -20px rgba(0,0,0,.4);
}
.side-img-card span{
  color:#fff;
  font-size:13px;
  font-weight:600;
  background:rgba(18,52,66,.78);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-radius:8px;
  padding:4px 10px;
}
.advisory-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-top:16px;
}
.advisory-list .advisory-item{
  display:flex;
  gap:10px;
  font-size:13px;
  color:var(--text-muted);
  align-items:flex-start;
}
.advisory-list .advisory-item i{
  color:var(--green);
  margin-top:5px;
}
.related-section{
  margin:18px 0 28px;
}
.section-heading{
  margin-bottom:22px;
}
.section-heading h2{
  font-size:26px;
  font-weight:800;
  margin-bottom:4px;
}
.section-heading .section-sub{
  color:var(--text-muted);
  font-size:14px;
}
.topic-card{
  background:var(--surface);
  border:1px solid rgba(220,232,240,.85);
  border-radius:16px;
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.topic-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.topic-card-img{
  aspect-ratio:16/10;
  background:#e7eef4;
  overflow:hidden;
}
.topic-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.topic-card:hover .topic-card-img img{transform:scale(1.04)}
.topic-card-body{
  padding:18px 20px 20px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.topic-card-body .topic-card-tag{
  align-self:flex-start;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  padding:2px 10px;
  border-radius:var(--radius-pill);
  margin-bottom:10px;
}
.topic-card-body h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:8px;
}
.topic-card-body h3 a{color:var(--title-color)}
.topic-card-body h3 a:hover{color:var(--primary)}
.topic-card-body p{
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:12px;
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.topic-card-body .topic-card-link{
  margin-top:auto;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.section-faq{
  padding:56px 0 44px;
}
.section-faq .container-xxl{
  max-width:1040px;
}
.faq-intro{
  text-align:center;
  max-width:700px;
  margin:0 auto 28px;
}
.faq-intro h2{
  font-size:30px;
  font-weight:800;
}
.faq-intro p{
  color:var(--text-muted);
  font-size:15px;
  margin-bottom:0;
}
.accordion{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.accordion-item{
  background:var(--surface);
  border:1px solid rgba(220,232,240,.9)!important;
  border-radius:16px!important;
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.accordion-button{
  font-size:15px;
  font-weight:600;
  color:var(--title-color);
  background:transparent;
  padding:18px 22px;
  box-shadow:none!important;
  border-radius:16px!important;
  transition:color .25s var(--ease),background-color .25s var(--ease);
}
.accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(23,107,135,.03);
  border-bottom:1px solid var(--line);
  border-radius:15px 15px 0 0!important;
}
.accordion-button:hover{
  background:rgba(23,107,135,.03);
  color:var(--primary);
}
.accordion-button::after{
  flex-shrink:0;
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--primary-soft) center / 12px no-repeat;
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='rgba(23,107,135,0.85)' fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3e%3c/svg%3e");
  background-size:12px;
  transition:transform .3s var(--ease),background-color .25s var(--ease);
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background-color:var(--primary);
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='%23ffffff' fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3e%3c/svg%3e");
}
.accordion-body{
  padding:20px 22px 22px;
  font-size:14px;
  color:var(--text-muted);
  line-height:1.75;
}
.section-cta-band{
  background:linear-gradient(135deg,#123442 0%,#163e4d 100%);
  border-radius:24px;
  color:#fff;
  padding:52px 42px;
  margin-top:10px;
  position:relative;
  overflow:hidden;
}
.section-cta-band::after{
  content:'';
  position:absolute;
  right:-60px;
  top:-60px;
  width:240px;
  height:240px;
  background:rgba(255,255,255,.05);
  border-radius:50%;
  pointer-events:none;
}
.section-cta-band h2{
  color:#fff;
  font-size:28px;
  margin-bottom:10px;
}
.section-cta-band p{
  color:var(--footer-text);
  margin-bottom:0;
  font-size:15px;
}
.cta-band-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.site-footer{
  background:var(--footer-bg);
  color:var(--footer-text);
  padding:58px 0 0;
  margin-top:66px;
}
.site-footer .footer-brand{
  padding-right:20px;
}
.site-footer .footer-brand .brand-logo{
  color:#fff!important;
  margin-bottom:12px;
}
.site-footer .footer-brand .logo-mark{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.12);
  color:#fff;
}
.site-footer .footer-brand .brand-text{
  color:#fff;
}
.footer-desc{
  color:var(--footer-text);
  font-size:14px;
  line-height:1.85;
  margin-top:10px;
}
.footer-title{
  color:var(--footer-title);
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{margin-bottom:9px}
.footer-links a{
  color:var(--footer-text);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-links a i{
  font-size:10px;
  color:rgba(255,255,255,.35);
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-contact-item{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:var(--footer-text);
  font-size:14px;
  margin-bottom:12px;
}
.footer-contact-item i{
  color:var(--green);
  margin-top:6px;
  font-size:15px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:34px;
  padding:22px 0 28px;
}
.footer-bottom .copyright{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--footer-text);
  font-size:13px;
}
.footer-bottom .copyright span:last-child{
  color:rgba(255,255,255,.4);
}
.mobile-sticky-cta{
  position:fixed;
  left:10px;
  right:10px;
  bottom:10px;
  z-index:1100;
  display:none;
}
.mobile-sticky-cta .btn{
  padding:12px 6px;
  border-radius:12px;
  font-weight:600;
  font-size:14px;
  box-shadow:0 8px 22px -6px rgba(16,32,48,.22);
}
@media (max-width:767.98px){
  body{padding-bottom:0}
  .mobile-sticky-cta{
    display:flex;
    gap:8px;
  }
  .site-footer{
    padding-bottom:58px;
  }
  .site-footer .footer-bottom .copyright{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width:767px){
  .article-title{font-size:26px}
  .article-lede{padding-top:26px;background-attachment:scroll}
  .article-card{padding:18px 14px 22px}
  .article-content{font-size:15px}
  .article-content h2{font-size:21px}
  .article-cover-wrap img{aspect-ratio:4/3}
  .section-cta-band{padding:34px 24px}
  .section-cta-band h2{font-size:22px}
  .cta-band-actions{justify-content:flex-start;margin-top:18px}
}
@media (max-width:991px){
  .article-layout-wrap .row{flex-direction:column}
}

/* roulang page: category3 */
:root {
      --brand: #176B87;
      --brand-dark: #0F526A;
      --brand-soft: #E4F2F7;
      --accent: #FF7A45;
      --accent-dark: #E85A28;
      --teal: #37B6A2;
      --page-bg: #F6FAFD;
      --card-bg: #FFFFFF;
      --title-color: #17324D;
      --text-color: #3F5A6B;
      --muted: #6A8795;
      --border: #DCE8F0;
      --deep: #123442;
      --deep-2: #102D3C;
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 10px;
      --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04), 0 12px 24px -8px rgba(20, 45, 70, 0.10);
      --shadow-float: 0 18px 38px -12px rgba(16, 45, 60, 0.18);
      --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", "Segoe UI", sans-serif;
    }

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

    html {
      scroll-padding-top: 96px;
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-family);
      background-color: var(--page-bg);
      color: var(--text-color);
      line-height: 1.75;
      font-size: 16px;
    }

    body.modal-open,
    body.noscroll {
      overflow: hidden;
    }

    ::selection {
      background: var(--brand-soft);
      color: var(--brand-dark);
    }

    a {
      color: var(--brand);
      text-decoration: none;
      transition: color 0.22s ease;
    }

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

    img {
      max-width: 100%;
    }

    .container-xxl {
      max-width: 1260px;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      color: var(--title-color);
      font-weight: 700;
      letter-spacing: 0.01em;
    }

    .text-muted-2 {
      color: var(--muted);
    }

    /* ===== Header ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1050;
      background: rgba(255, 255, 255, 0.62);
      backdrop-filter: blur(16px) saturate(1.5);
      -webkit-backdrop-filter: blur(16px) saturate(1.5);
      border-bottom: 1px solid rgba(220, 232, 240, 0.55);
      transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .site-header.is-scrolled {
      background: rgba(255, 255, 255, 0.94);
      border-bottom-color: rgba(220, 232, 240, 0.9);
      box-shadow: 0 4px 16px rgba(16, 32, 48, 0.06);
    }

    .inner-page .site-header {
      background: rgba(255, 255, 255, 0.92);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 14px rgba(16, 32, 48, 0.04);
    }

    .site-header .navbar {
      min-height: 76px;
      padding-top: 0.4rem;
      padding-bottom: 0.4rem;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--title-color);
      font-weight: 700;
      min-height: 44px;
    }

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

    .logo-mark {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: linear-gradient(140deg, var(--brand), var(--brand-dark));
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      box-shadow: 0 8px 16px -6px rgba(23, 107, 135, 0.45);
      flex-shrink: 0;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.25;
      font-size: 19px;
      color: var(--title-color);
      letter-spacing: 0.01em;
    }

    .brand-sub {
      font-size: 11px;
      font-weight: 400;
      color: var(--muted);
      letter-spacing: 0.02em;
      margin-top: 3px;
    }

    .navbar-toggler {
      border: 1px solid var(--border);
      border-radius: 10px;
      width: 46px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--title-color);
      background: rgba(255, 255, 255, 0.7);
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(23, 107, 135, 0.2);
    }

    .navbar-toggler-icon {
      background-image: none;
      width: auto;
      height: auto;
      font-size: 20px;
    }

    .navbar-toggler-icon::before {
      content: "\f0c9";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      color: var(--brand-dark);
      width: 100%;
    }

    .nav-links .nav-link {
      color: var(--title-color);
      font-weight: 500;
      font-size: 15px;
      padding: 10px 16px;
      margin: 0 2px;
      border-radius: 10px;
      position: relative;
      transition: background 0.2s, color 0.25s;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .nav-links .nav-link::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 4px;
      height: 3px;
      border-radius: 99px;
      background: var(--accent);
      opacity: 0;
      transform: scaleX(0.4);
      transition: all 0.25s ease;
    }

    .nav-links .nav-link:hover {
      color: var(--brand-dark);
      background: var(--brand-soft);
    }

    .nav-links .nav-link:hover::after {
      opacity: 0.7;
      transform: scaleX(0.8);
    }

    .nav-links .nav-link.active {
      color: var(--brand-dark);
      background: var(--brand-soft);
      font-weight: 600;
    }

    .nav-links .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

    .nav-actions {
      gap: 10px;
    }

    .btn-header {
      border-radius: 12px;
      min-height: 44px;
      padding: 0.55rem 1.25rem;
      font-weight: 600;
      font-size: 14px;
      background: var(--accent);
      border: 1px solid var(--accent);
      color: #fff;
      transition: background 0.22s ease, box-shadow 0.22s ease, transform 0.2s ease;
      white-space: nowrap;
    }

    .btn-header:hover {
      background: var(--accent-dark);
      border-color: var(--accent-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 12px 20px -8px rgba(255, 122, 69, 0.6);
    }

    /* ===== Buttons ===== */
    .btn {
      border-radius: var(--radius-sm);
      font-weight: 600;
      padding: 0.7rem 1.45rem;
      transition: all 0.25s ease;
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn:focus,
    .btn:focus-visible,
    .form-control:focus,
    .form-select:focus,
    .accordion-button:focus {
      outline: 2px solid var(--brand);
      outline-offset: 2px;
      box-shadow: none;
    }

    .btn-cta {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
      box-shadow: 0 12px 22px -10px rgba(255, 122, 69, 0.65);
    }

    .btn-cta:hover,
    .btn-cta:active {
      background: var(--accent-dark) !important;
      border-color: var(--accent-dark) !important;
      color: #fff !important;
      transform: translateY(-3px);
      box-shadow: 0 18px 30px -12px rgba(232, 90, 40, 0.55);
    }

    .btn-outline-brand {
      border-color: var(--brand);
      color: var(--brand);
      background: transparent;
      border-width: 1px;
    }

    .btn-outline-brand:hover {
      background: var(--brand-soft);
      border-color: var(--brand);
      color: var(--brand-dark);
      transform: translateY(-3px);
      box-shadow: 0 10px 22px -12px rgba(23, 107, 135, 0.45);
    }

    .btn-white-outline {
      border-color: rgba(255, 255, 255, 0.6);
      color: #fff;
      background: transparent;
    }

    .btn-white-outline:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: #fff;
      color: #fff;
    }

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

    .btn-light-solid:hover {
      background: var(--brand-soft);
      border-color: #fff;
      color: var(--brand-dark);
    }

    .btn-lg {
      min-height: 52px;
      border-radius: 13px;
      padding: 0.85rem 1.8rem;
    }

    /* ===== Page hero ===== */
    .page-hero {
      position: relative;
      padding: 156px 0 72px;
      background-color: var(--page-bg);
      background-image: linear-gradient(to right, rgba(255, 255, 255, 0.96) 20%, rgba(255, 255, 255, 0.7) 65%, rgba(255, 255, 255, 0.2)), url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      border-bottom: 1px solid transparent;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 46px;
      background: linear-gradient(to bottom, transparent, var(--page-bg));
      pointer-events: none;
    }

    .hero-breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--muted);
      margin-bottom: 18px;
      flex-wrap: wrap;
    }

    .hero-breadcrumb a {
      color: var(--muted);
      text-decoration: none;
    }

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

    .hero-breadcrumb i {
      font-size: 10px;
      opacity: 0.6;
    }

    .hero-breadcrumb .current {
      color: var(--brand-dark);
      font-weight: 600;
    }

    .page-hero h1 {
      font-size: 46px;
      font-weight: 800;
      margin-bottom: 18px;
      letter-spacing: 0.02em;
      color: var(--title-color);
      max-width: 500px;
    }

    .page-lead {
      font-size: 17px;
      line-height: 1.85;
      color: var(--text-color);
      max-width: 620px;
      margin-bottom: 30px;
    }

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

    /* ===== Section base ===== */
    .section-block {
      padding: 92px 0;
    }

    .section-block.bg-soft {
      background: #FFFFFF;
      border-top: 1px solid rgba(220, 232, 240, 0.55);
      border-bottom: 1px solid rgba(220, 232, 240, 0.55);
    }

    .section-head {
      margin-bottom: 46px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--brand-soft);
      color: var(--brand-dark);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      padding: 5px 14px;
      margin-bottom: 16px;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--title-color);
      letter-spacing: -0.01em;
      margin-bottom: 12px;
      line-height: 1.35;
    }

    .section-head p {
      color: var(--muted);
      font-size: 16px;
      max-width: 720px;
      margin-bottom: 0;
    }

    .head-separator {
      width: 52px;
      height: 4px;
      border-radius: 8px;
      background: var(--accent);
      margin-top: 14px;
    }

    /* ===== Resource card list ===== */
    .resource-list {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: 10px 14px;
    }

    .resource-topic {
      display: grid;
      grid-template-columns: 68px 1fr auto;
      gap: 20px;
      align-items: start;
      padding: 28px 16px;
    }

    .resource-topic + .resource-topic {
      border-top: 1px solid var(--border);
    }

    .topic-num {
      font-size: 30px;
      font-weight: 800;
      color: var(--brand-soft);
      line-height: 1.1;
      font-variant-numeric: tabular-nums;
    }

    .resource-topic h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .resource-topic p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 15px;
      max-width: 620px;
    }

    .topic-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--brand-soft);
      color: var(--brand-dark);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 17px;
      flex-shrink: 0;
    }

    .topic-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 10px;
    }

    .mini-tag {
      background: var(--brand-soft);
      color: var(--brand-dark);
      font-size: 12px;
      font-weight: 500;
      padding: 3px 11px;
      border-radius: 999px;
    }

    /* ===== split panel + browser card ===== */
    .split-panel {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 60px;
      align-items: center;
    }

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

    .feature-list li {
      display: flex;
      gap: 14px;
      border-bottom: 1px solid var(--border);
      padding: 17px 4px;
    }

    .feature-list li:last-child {
      border-bottom: 0;
    }

    .feature-list i {
      color: var(--brand);
      font-size: 17px;
      margin-top: 4px;
      flex-shrink: 0;
    }

    .feature-list strong {
      color: var(--title-color);
      display: block;
      font-size: 17px;
      margin-bottom: 2px;
    }

    .feature-list span {
      color: var(--muted);
      font-size: 14px;
      display: block;
      line-height: 1.7;
    }

    .browser-frame {
      background: #EFF5F8;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 18px;
      box-shadow: var(--shadow-float);
    }

    .browser-top {
      background: #fff;
      border: 1px solid var(--border);
      border-bottom: 0;
      border-radius: 14px 14px 0 0;
      padding: 13px 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .browser-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: #E2E9EE;
    }

    .browser-dot:first-child {
      background: #F8B9A0;
    }

    .browser-url {
      margin-left: 8px;
      background: #F3F7FA;
      color: var(--muted);
      border-radius: 8px;
      font-size: 12px;
      padding: 3px 12px;
      flex: 1;
    }

    .browser-tabs {
      display: flex;
      gap: 4px;
      padding: 0 14px;
      background: #fff;
      border-left: 1px solid var(--border);
      border-right: 1px solid var(--border);
    }

    .browser-tab {
      background: #E4F2F7;
      color: var(--brand-dark);
      border-radius: 8px 8px 0 0;
      font-size: 12px;
      padding: 7px 14px;
      font-weight: 500;
    }

    .browser-tab.active {
      background: #176B87;
      color: #fff;
    }

    .browser-body {
      background: #fff;
      border: 1px solid var(--border);
      border-top: 0;
      border-radius: 0 0 14px 14px;
      padding: 26px 22px;
    }

    .browser-line {
      height: 10px;
      border-radius: 99px;
      background: #E2EBF1;
      margin-bottom: 14px;
    }

    .browser-line.short {
      width: 55%;
    }

    .browser-line.long {
      width: 88%;
    }

    .browser-list {
      display: grid;
      gap: 10px;
      margin-top: 22px;
    }

    .browser-list-item {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 9px 12px;
      border: 1px solid var(--border);
      border-radius: 10px;
      font-size: 14px;
      color: var(--title-color);
      background: #FBFDFE;
    }

    .browser-list-item i {
      color: var(--brand);
      width: 18px;
    }

    .browser-status {
      margin-left: auto;
      font-size: 11px;
      color: var(--teal);
      background: rgba(55, 182, 162, 0.12);
      padding: 2px 8px;
      border-radius: 99px;
      white-space: nowrap;
    }

    /* ===== Steps ===== */
    .steps-wrapper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .step-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      position: relative;
    }

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

    .step-number {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      letter-spacing: 0.05em;
    }

    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin: 10px 0 8px;
    }

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

    .step-arrow {
      position: absolute;
      top: 50%;
      right: -18px;
      transform: translateY(-50%);
      color: #B6CBD6;
      font-size: 14px;
      z-index: 2;
    }

    /* ===== Featured image cards ===== */
    .media-card {
      display: grid;
      grid-template-columns: 260px 1fr;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .media-thumb {
      min-height: 220px;
      background: linear-gradient(145deg, #dceef5, #e8f2f8);
      position: relative;
      overflow: hidden;
    }

    .media-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      inset: 0;
    }

    .media-body {
      padding: 28px 32px 26px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .media-body .badge {
      align-self: flex-start;
      background: var(--brand-soft);
      color: var(--brand-dark);
      font-weight: 600;
      font-size: 13px;
      padding: 6px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    .media-body h3 {
      font-size: 21px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .media-body p {
      color: var(--muted);
      font-size: 15px;
      margin-bottom: 14px;
    }

    .link-more {
      color: var(--brand);
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 7px;
    }

    .link-more i {
      transition: transform 0.2s ease;
    }

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

    /* ===== Stats / information band ===== */
    .info-band {
      background: var(--brand-soft);
      border: 1px solid rgba(23, 107, 135, 0.12);
      border-radius: var(--radius-lg);
      padding: 26px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .info-band-item {
      text-align: center;
    }

    .info-band-item i {
      font-size: 24px;
      color: var(--brand);
      margin-bottom: 10px;
      display: block;
    }

    .info-band-item .value {
      font-size: 24px;
      font-weight: 800;
      color: var(--title-color);
      display: block;
      line-height: 1.2;
      font-variant-numeric: tabular-nums;
    }

    .info-band-item span:not(.value) {
      color: var(--muted);
      font-size: 14px;
    }

    /* ===== CTA band ===== */
    .cta-band {
      background: var(--deep);
      background-image: linear-gradient(135deg, #123442, #0F2C3A);
      border-radius: var(--radius-lg);
      padding: 56px 52px;
      color: #E8F0F4;
      position: relative;
      overflow: hidden;
    }

    .cta-band::before {
      content: "";
      position: absolute;
      top: -90px;
      right: -70px;
      width: 340px;
      height: 340px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
    }

    .cta-band h2 {
      color: #fff;
      font-size: 30px;
      letter-spacing: 0.01em;
      margin-bottom: 12px;
    }

    .cta-band p {
      color: #B7C9D4;
      max-width: 660px;
      margin-bottom: 22px;
      font-size: 16px;
    }

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

    /* ===== Other categories ===== */
    .other-nav {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }

    .other-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px 30px;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      display: block;
      color: var(--text-color);
    }

    .other-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-float);
      color: var(--brand-dark);
      border-color: var(--brand);
    }

    .other-card .other-icon {
      width: 46px;
      height: 46px;
      background: var(--brand-soft);
      color: var(--brand-dark);
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 14px;
    }

    .other-card h3 {
      font-size: 20px;
      margin-bottom: 6px;
    }

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

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .accordion-item {
      background: #fff;
      border: 1px solid var(--border) !important;
      border-radius: var(--radius-md) !important;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
    }

    .accordion-button {
      background: #fff;
      color: var(--title-color);
      font-weight: 600;
      font-size: 16px;
      padding: 20px 22px;
      line-height: 1.5;
      box-shadow: none;
      border-radius: 0;
    }

    .accordion-button:not(.collapsed) {
      background: #fff;
      color: var(--brand-dark);
      box-shadow: inset 0 -1px 0 var(--border);
    }

    .accordion-button::after {
      background-image: none;
      content: "\f067";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      color: var(--brand);
      width: 18px;
      height: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      transition: transform 0.25s ease;
    }

    .accordion-button:not(.collapsed)::after {
      transform: rotate(45deg);
      color: var(--accent);
    }

    .accordion-body {
      background: #fff;
      color: var(--text-color);
      font-size: 15px;
      padding: 8px 22px 24px;
      line-height: 1.8;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--deep);
      color: #B7C9D4;
      padding: 70px 0 0;
      font-size: 14px;
      margin-top: 96px;
    }

    .site-footer .brand-logo .brand-text {
      color: #fff;
    }

    .site-footer .brand-sub {
      color: #8FABB9;
    }

    .footer-desc {
      margin-top: 18px;
      color: #A9C2CE;
      font-size: 14px;
      line-height: 1.75;
      max-width: 320px;
    }

    .footer-title {
      color: #E8F0F4;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.02em;
    }

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

    .footer-links li {
      margin-bottom: 11px;
    }

    .footer-links a {
      color: #A9C2CE;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: color 0.2s ease, padding-left 0.2s ease;
      min-height: 24px;
    }

    .footer-links a i {
      font-size: 10px;
      color: #5F8292;
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 3px;
    }

    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #A9C2CE;
      font-size: 14px;
      margin-bottom: 14px;
    }

    .footer-contact-item i {
      color: #7AA7B8;
      margin-top: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      margin-top: 44px;
      padding: 22px 0;
    }

    .copyright {
      display: flex;
      align-items: center;
      color: #87A5B3;
      font-size: 13px;
      gap: 10px;
      row-gap: 4px;
    }

    /* ===== responsive ===== */
    @media (max-width: 1199.98px) {
      .split-panel {
        grid-template-columns: 1fr;
        gap: 42px;
      }

      .media-card {
        grid-template-columns: 220px 1fr;
      }
    }

    @media (max-width: 991.98px) {
      .section-block {
        padding: 62px 0;
      }

      .page-hero {
        padding: 130px 0 54px;
      }

      .page-hero h1 {
        font-size: 36px;
      }

      .site-header .navbar {
        min-height: 62px;
      }

      .navbar-collapse {
        background: rgba(255, 255, 255, 0.98);
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 16px 18px;
        margin-top: 10px;
        box-shadow: var(--shadow-float);
      }

      .nav-links .nav-link {
        justify-content: flex-start;
        width: 100%;
        margin-bottom: 4px;
        padding-left: 16px;
      }

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

      .nav-actions {
        margin-top: 10px;
      }

      .nav-actions .btn-header {
        width: 100%;
      }

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

      .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }

      .step-arrow {
        display: none;
      }

      .info-band {
        grid-template-columns: repeat(2, 1fr);
      }

      .media-card {
        grid-template-columns: 1fr;
      }

      .media-thumb {
        min-height: 200px;
        height: 200px;
      }

      .media-thumb img {
        position: absolute;
      }

      .split-panel {
        gap: 36px;
      }

      .resource-topic {
        grid-template-columns: 50px 1fr;
        gap: 14px;
      }

      .topic-icon {
        display: none;
      }

      .cta-band {
        padding: 44px 30px;
      }

      .site-footer {
        margin-top: 70px;
        padding-top: 54px;
      }
    }

    @media (max-width: 767.98px) {
      .section-block {
        padding: 48px 0;
      }

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

      .section-tag {
        font-size: 12px;
      }

      .page-hero {
        padding: 116px 0 44px;
      }

      .page-hero h1 {
        font-size: 32px;
        line-height: 1.3;
      }

      .page-lead {
        font-size: 15px;
      }

      .hero-actions .btn {
        flex: 1 1 auto;
      }

      .resource-list {
        padding: 0 6px;
      }

      .resource-topic {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 22px 8px;
      }

      .topic-num {
        font-size: 24px;
      }

      .resource-topic p {
        font-size: 14px;
      }

      .steps-wrapper {
        grid-template-columns: 1fr;
      }

      .step-card {
        padding: 20px;
      }

      .info-band {
        grid-template-columns: 1fr;
        text-align: left;
        padding: 22px 18px;
      }

      .info-band-item {
        text-align: left;
        display: flex;
        gap: 14px;
        align-items: center;
      }

      .info-band-item i {
        margin: 0;
        font-size: 22px;
      }

      .info-band-item .value {
        font-size: 20px;
      }

      .other-nav {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .cta-band {
        border-radius: 16px;
        padding: 36px 24px;
      }

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

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

      .media-body {
        padding: 22px;
      }

      .media-body h3 {
        font-size: 18px;
      }

      .section-head {
        margin-bottom: 30px;
      }

      .footer-title {
        margin-top: 16px;
      }

      .footer-bottom {
        margin-top: 32px;
      }

      .copyright {
        flex-direction: column;
        align-items: flex-start;
      }

      body {
        font-size: 15px;
      }

      html {
        scroll-padding-top: 70px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      * {
        transition: none !important;
      }
    }

/* roulang page: category2 */
:root {
    --primary: #176B87;
    --primary-dark: #124F63;
    --accent: #FF7A45;
    --accent-dark: #E8632A;
    --green: #37B6A2;
    --page-bg: #F6FAFD;
    --card-bg: #FFFFFF;
    --heading-color: #17324D;
    --body-text: #3F5A6B;
    --muted-text: #6A8795;
    --border-color: #DCE8F0;
    --tag-bg: #E4F2F7;
    --dark-bg: #123442;
    --dark-bg-deep: #102D3C;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04), 0 12px 24px -8px rgba(20, 45, 70, 0.10);
    --shadow-hover: 0 4px 6px rgba(16, 24, 40, 0.04), 0 22px 40px -12px rgba(20, 45, 70, 0.20);
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 96px;
}

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

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

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

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

.container-xxl {
    max-width: 1240px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--heading-color);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: .01em;
}

h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(1.55rem, 2.5vw, 2.15rem);
    font-weight: 800;
    letter-spacing: .02em;
}

h3 {
    font-size: clamp(1.15rem, 1.6vw, 1.45rem);
    font-weight: 700;
}

p {
    margin-bottom: 0;
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

.btn {
    border-radius: 12px;
    font-weight: 600;
    padding: 12px 22px;
    font-size: 15px;
    transition: background .25s ease, color .25s ease, box-shadow .25s ease, transform .25s ease, border-color .2s ease;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:focus,
.btn:active:focus {
    box-shadow: 0 0 0 0.2rem rgba(23, 107, 135, .15);
}

.btn-accent {
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #fff !important;
}

.btn-accent:hover,
.btn-accent:focus {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff !important;
    box-shadow: 0 12px 24px -8px rgba(255, 122, 69, .35);
}

.btn-outline-brand {
    background: transparent;
    border: 1px solid rgba(23, 107, 135, .35);
    color: var(--primary) !important;
}

.btn-outline-brand:hover,
.btn-outline-brand:focus {
    background: rgba(23, 107, 135, .08);
    border-color: var(--primary);
    color: var(--primary-dark) !important;
}

.btn-on-dark {
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #fff !important;
}

.btn-on-dark:hover {
    background: #fff;
    border-color: #fff;
    color: var(--heading-color) !important;
}

.btn-outline-dark {
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .55);
    color: #F0F7FA !important;
}

.btn-outline-dark:hover {
    background: rgba(255, 255, 255, .12);
    border-color: #fff;
    color: #fff !important;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1080;
    background: rgba(255, 255, 255, .52);
    backdrop-filter: blur(14px) saturate(1.5);
    -webkit-backdrop-filter: blur(14px) saturate(1.5);
    border-bottom: 1px solid rgba(255, 255, 255, .35);
    transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, .92);
    border-bottom-color: rgba(220, 232, 240, .75);
    box-shadow: 0 4px 16px rgba(16, 32, 48, .06);
}

.navbar {
    min-height: 76px;
    padding-top: .5rem;
    padding-bottom: .5rem;
}

.navbar-brand.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--heading-color);
    font-weight: 800;
    font-size: 19px;
    line-height: 1.3;
}

.brand-logo .logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 13px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex: 0 0 40px;
    box-shadow: 0 8px 18px -6px rgba(23, 107, 135, .4);
}

.brand-logo .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    font-weight: 800;
    color: var(--heading-color);
}

.brand-logo .brand-sub {
    font-size: 11px;
    font-weight: 500;
    color: var(--muted-text);
    letter-spacing: .02em;
}

.nav-links .nav-link {
    color: var(--heading-color);
    font-weight: 500;
    font-size: 15px;
    padding: .5rem 1rem;
    border-radius: 10px;
    position: relative;
    transition: color .2s ease, background .2s ease;
}

.nav-links .nav-link:hover {
    color: var(--primary);
    background: rgba(23, 107, 135, .06);
}

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

.nav-links .nav-link.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 18px;
    height: 3px;
    border-radius: 999px;
    background: var(--accent);
    transform: translateX(-50%);
}

.btn-header {
    background: var(--accent);
    color: #fff;
    padding: 9px 18px;
    font-size: 14px;
    border-radius: 999px;
    border: 1px solid var(--accent);
}

.btn-header:hover,
.btn-header:focus {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    box-shadow: 0 8px 20px -8px rgba(255, 122, 69, .45);
    transform: translateY(-1px);
}

.navbar-toggler {
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 12px;
    background: rgba(255, 255, 255, .7);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(23, 107, 135, .2);
}

.navbar-toggler .navbar-toggler-icon {
    display: inline-block;
    width: 24px;
    height: 2px;
    background: var(--heading-color);
    border-radius: 999px;
    position: relative;
    transition: background .2s ease;
}

.navbar-toggler .navbar-toggler-icon::before,
.navbar-toggler .navbar-toggler-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--heading-color);
    border-radius: 999px;
}

.navbar-toggler .navbar-toggler-icon::before {
    top: -7px;
}

.navbar-toggler .navbar-toggler-icon::after {
    top: 7px;
}

/* Page Hero */
.page-hero {
    position: relative;
    background-color: #E5F1F6;
    background-image: linear-gradient(90deg, rgba(246, 250, 253, .98) 0%, rgba(246, 250, 253, .82) 45%, rgba(246, 250, 253, .45) 100%), url('/assets/images/backpic/back-2.webp');
    background-position: center;
    background-size: cover;
    padding: 150px 0 84px;
    min-height: 360px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(220, 232, 240, .6);
}

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

.crumb-nav {
    font-size: 14px;
    color: var(--muted-text);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.crumb-nav a {
    color: var(--primary);
    font-weight: 500;
}

.crumb-nav a:hover {
    color: var(--primary-dark);
}

.crumb-nav .crumb-current {
    color: var(--muted-text);
}

.page-hero h1 {
    max-width: 860px;
    margin-bottom: 18px;
}

.page-hero .lead {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: #38526B;
    max-width: 780px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.hero-actions .btn {
    min-height: 48px;
}

.hero-note {
    margin-top: 28px;
    font-size: 14px;
    color: var(--muted-text);
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

/* Section common */
.section {
    padding: 110px 0;
}

.section-tint {
    background: #EEF5F8;
}

.section-white {
    background: #fff;
}

.section-head {
    margin-bottom: 52px;
}

.section-head h2 {
    position: relative;
    margin-bottom: 12px;
}

.section-head p {
    color: var(--muted-text);
    max-width: 720px;
    font-size: 16px;
}

/* Scope */
.scope-intro {
    position: sticky;
    top: 120px;
}

.scope-intro h2 {
    margin-bottom: 20px;
}

.scope-intro p {
    color: var(--muted-text);
    margin-bottom: 24px;
}

.scope-alert {
    background: var(--tag-bg);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    font-size: 14px;
    color: var(--primary-dark);
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.scope-alert i {
    margin-top: 4px;
}

.scope-list {
    display: flex;
    flex-direction: column;
}

.scope-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    background: transparent;
    padding: 24px 4px;
    border-bottom: 1px solid var(--border-color);
    transition: background .25s ease, padding-left .25s ease;
}

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

.scope-item:hover {
    background: rgba(23, 107, 135, .025);
    padding-left: 10px;
}

.scope-no {
    font-variant-numeric: tabular-nums;
    font-weight: 800;
    color: var(--primary);
    opacity: .7;
    font-size: 15px;
    line-height: 2.2;
    min-width: 46px;
}

.scope-body {
    display: flex;
    gap: 18px;
}

.scope-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: rgba(23, 107, 135, .08);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex: 0 0 48px;
}

.scope-body h3 {
    font-size: 17px;
    margin-bottom: 6px;
}

.scope-body p {
    color: var(--muted-text);
    font-size: 15px;
    max-width: 520px;
}

/* Steps */
.guide-step-list {
    max-width: 920px;
    margin: 0 auto;
}

.guide-step {
    display: flex;
    gap: 24px;
    padding: 26px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: #fff;
    box-shadow: var(--shadow-card);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    margin-bottom: 18px;
}

.guide-step:hover {
    transform: translateY(-4px);
    border-color: rgba(23, 107, 135, .3);
    box-shadow: var(--shadow-hover);
}

.step-num {
    font-size: 15px;
    font-weight: 800;
    width: 58px;
    height: 58px;
    border-radius: 18px;
    background: rgba(23, 107, 135, .08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 58px;
    font-variant-numeric: tabular-nums;
    letter-spacing: .01em;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 6px;
}

.step-content p {
    color: var(--muted-text);
    max-width: 720px;
}

.step-tag {
    display: inline-block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--primary);
    background: var(--tag-bg);
    border-radius: 999px;
    padding: 4px 12px;
}

/* Scenario */
.scenario-block {
    display: flex;
    align-items: center;
    gap: 56px;
    margin-bottom: 84px;
}

.scenario-block:last-child {
    margin-bottom: 0;
}

.scenario-block.reverse {
    flex-direction: row-reverse;
}

.scenario-media {
    flex: 1 1 46%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    aspect-ratio: 4 / 3;
    background: #dbe7ea;
    position: relative;
    transition: box-shadow .3s ease, transform .3s ease;
}

.scenario-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.scenario-media:hover {
    box-shadow: var(--shadow-hover);
    transform: scale(1.01);
}

.scenario-content {
    flex: 1 1 54%;
}

.scenario-content h3 {
    font-size: clamp(1.3rem, 2vw, 1.75rem);
    margin-bottom: 18px;
}

.scenario-content p {
    color: var(--body-text);
    font-size: 16px;
    line-height: 1.85;
    margin-bottom: 22px;
}

.scenario-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.scenario-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #456375;
    font-size: 15px;
}

.scenario-list i {
    color: var(--green);
    margin-top: 6px;
    font-size: 14px;
}

.scenario-links {
    margin-top: 22px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-soft {
    background: var(--tag-bg);
    border: 1px solid transparent;
    color: var(--primary);
    padding: 8px 17px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
}

.btn-soft:hover {
    background: rgba(23, 107, 135, .14);
    color: var(--primary-dark);
    transform: translateY(-1px);
}

/* Notice panel */
.notice-panel {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 42px 46px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px 44px;
}

.notice-panel-head {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 16px;
}

.notice-panel-head i {
    color: var(--accent);
    font-size: 28px;
}

.notice-panel-head h2 {
    margin-bottom: 0;
    font-size: clamp(1.4rem, 2vw, 1.9rem);
}

.notice-panel-head p {
    color: var(--muted-text);
    font-size: 15px;
}

.notice-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding-left: 4px;
}

.notice-item i {
    color: var(--primary);
    margin-top: 5px;
}

.notice-item h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.notice-item p {
    color: var(--muted-text);
    font-size: 15px;
}

/* FAQ */
.faq-inner {
    max-width: 880px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border-color) !important;
    border-radius: 18px !important;
    overflow: hidden;
    margin-bottom: 14px;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item:focus-within,
.faq-item:hover {
    border-color: rgba(23, 107, 135, .3) !important;
    box-shadow: 0 12px 26px -14px rgba(20, 45, 70, .25);
}

.accordion-button {
    padding: 22px 26px;
    font-weight: 700;
    font-size: 16px;
    color: var(--heading-color);
    background: #fff !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 18px !important;
}

.accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(23, 107, 135, .15) !important;
}

.accordion-button:not(.collapsed) {
    background: #fff !important;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23176B87' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E");
    background-size: 18px;
    transition: transform .3s ease;
}

.accordion-button:not(.collapsed)::after {
    transform: rotate(45deg);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23176B87' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E");
}

.faq-item:not(:last-child) {
    margin-bottom: 14px;
}

.faq-a-body {
    padding: 0 24px 22px 26px;
    color: #4A6676;
    font-size: 15px;
    line-height: 1.8;
}

.accordion-button:not(.collapsed) {
    color: var(--primary-dark);
    border-bottom: 1px solid var(--border-color) !important;
    border-radius: 18px 18px 0 0 !important;
}

/* CTA band */
.cta-band {
    position: relative;
    background-color: var(--dark-bg);
    background-image: linear-gradient(120deg, rgba(16, 45, 60, .98), rgba(18, 52, 66, .9)), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    color: #D7E4EC;
    padding: 96px 0;
}

.cta-band h2 {
    color: #F2F8FB;
    font-size: clamp(1.6rem, 2.6vw, 2.3rem);
    margin-bottom: 16px;
}

.cta-band p {
    max-width: 700px;
    color: #B6C9D4;
    font-size: 16px;
}

.cta-band .btn {
    min-height: 48px;
    min-width: 132px;
}

.cta-band .btn + .btn {
    margin-left: 10px;
}

/* Footer */
.site-footer {
    background: var(--dark-bg-deep);
    color: #B7C9D4;
    padding-top: 68px;
    font-size: 15px;
}

.site-footer .brand-logo {
    color: #F4FAFC;
}

.site-footer .brand-logo .logo-mark {
    background: rgba(255, 255, 255, .1);
    color: #fff;
}

.site-footer .brand-logo .brand-text {
    color: #F4FAFC;
}

.footer-desc {
    color: #93AEBE;
    margin-top: 18px;
    max-width: 320px;
    font-size: 14px;
    line-height: 1.75;
}

.footer-title {
    color: #E8F0F4 !important;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 22px;
    margin-top: 8px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #B7C9D4;
    font-size: 14px;
    transition: color .2s ease, transform .2s ease;
}

.footer-links a i {
    color: rgba(255, 255, 255, .3);
    font-size: 12px;
    transition: transform .2s ease;
}

.footer-links a:hover {
    color: #fff;
    transform: translateX(3px);
}

.footer-links a:hover i {
    color: var(--accent);
}

.footer-contact-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    color: #B7C9D4;
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 1.7;
}

.footer-contact-item i {
    color: var(--accent);
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    margin-top: 48px;
    padding: 22px 0;
    font-size: 13px;
    color: #819CAB;
}

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

/* Floating CTA */
.floating-cta {
    position: fixed;
    right: 30px;
    bottom: 30px;
    z-index: 1060;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 13px 22px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 14px 30px -8px rgba(255, 122, 69, .5);
    opacity: 0;
    transform: translateY(18px);
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease, background .2s ease;
}

.floating-cta.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.floating-cta:hover {
    background: var(--accent-dark);
    color: #fff;
}

.mobile-cta-bar {
    display: none;
}

@media (max-width: 991.98px) {
    .navbar {
        min-height: 64px;
    }

    .navbar-collapse {
        background: rgba(255, 255, 255, .97);
        margin-top: 12px;
        border: 1px solid var(--border-color);
        border-radius: 18px;
        box-shadow: 0 16px 36px -12px rgba(20, 45, 70, .18);
        padding: 14px 16px;
    }

    .nav-links {
        gap: 4px;
    }

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

    .nav-actions {
        border-top: 1px solid var(--border-color);
        padding-top: 12px;
        margin-top: 8px;
    }

    .page-hero {
        padding: 126px 0 64px;
        min-height: auto;
    }

    .section {
        padding: 80px 0;
    }

    .scope-intro {
        position: static;
    }

    .scenario-block,
    .scenario-block.reverse {
        flex-direction: column;
        gap: 24px;
        margin-bottom: 56px;
    }

    .scenario-media {
        width: 100%;
        max-width: 680px;
    }

    .notice-panel {
        grid-template-columns: 1fr;
        padding: 32px 28px;
    }

    .cta-band {
        padding: 72px 0;
    }
}

@media (max-width: 575.98px) {
    .navbar {
        padding-top: .3rem;
        padding-bottom: .3rem;
    }

    .navbar-brand .brand-text {
        font-size: 16px;
    }

    .navbar-brand .brand-sub {
        font-size: 10px;
    }

    .brand-logo .logo-mark {
        width: 36px;
        height: 36px;
        font-size: 15px;
        flex-basis: 36px;
    }

    .page-hero {
        padding: 112px 0 56px;
    }

    .page-hero h1 {
        font-size: 1.8rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-head {
        margin-bottom: 36px;
    }

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

    .guide-step {
        flex-direction: column;
        padding: 20px;
        gap: 12px;
    }

    .step-num {
        width: 46px;
        height: 46px;
        border-radius: 14px;
        flex-basis: 46px;
    }

    .scope-item {
        flex-direction: column;
        gap: 8px;
        padding: 20px 2px;
    }

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

    .scope-body {
        display: block;
    }

    .scope-icon {
        margin-bottom: 10px;
    }

    .notice-panel {
        padding: 24px 20px;
    }

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

    .faq-a-body {
        padding: 0 16px 18px 18px;
    }

    .cta-band {
        padding: 56px 0;
    }

    .cta-band .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .cta-band .btn + .btn {
        margin-left: 0;
    }

    .floating-cta {
        display: none;
    }

    .mobile-cta-bar {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1070;
        background: rgba(255, 255, 255, .94);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid var(--border-color);
        padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
        display: flex;
        gap: 10px;
        box-shadow: 0 -8px 24px rgba(16, 32, 48, .07);
        opacity: 0;
        transform: translateY(100%);
        pointer-events: none;
        transition: opacity .3s ease, transform .3s ease;
    }

    .mobile-cta-bar.show {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .mobile-cta-bar .btn {
        flex: 1;
        padding: 10px 12px;
        font-size: 14px;
        min-height: 44px;
    }

    .footer-bottom {
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
    }

    .footer-bottom .copyright {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}