/* roulang page: index */
:root {
  --primary: #2F6D8C;
  --primary-dark: #245670;
  --primary-light: #E8F1F6;
  --accent: #B98A5A;
  --accent-light: #F6EEE4;
  --bg: #F7F9FB;
  --card-bg: #FFFFFF;
  --text-dark: #1E3A4F;
  --text-secondary: #5B7A8C;
  --text-muted: #8FA8B8;
  --border: #E3ECF2;
  --footer-bg: #162B3A;
  --footer-text: rgba(255,255,255,.78);
  --radius-card: 10px;
  --radius-lg: 12px;
  --radius-btn: 6px;
  --radius-pill: 20px;
  --shadow-card: 0 2px 12px rgba(31,59,82,.06);
  --shadow-hover: 0 8px 24px rgba(31,59,82,.12);
  --transition: .2s ease;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  color: var(--text-dark);
  background: var(--bg);
  line-height: 1.75;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.35; margin: 0 0 16px; color: var(--text-dark); }
p { margin: 0 0 16px; }
ul, ol { margin: 0 0 16px; padding-left: 20px; }

.grid-container {
  max-width: 1240px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(47,109,140,.28); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.85); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--primary-light); color: var(--primary-dark); }
.btn-text { padding: 8px 0; color: var(--primary); font-weight: 600; background: none; border: none; }
.btn-text:hover { color: var(--primary-dark); gap: 12px; }
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn:focus, input:focus, textarea:focus {
  outline: 2px solid rgba(47,109,140,.35);
  outline-offset: 2px;
}

/* ---------- 区块通用 ---------- */
.section { padding: 90px 0; }
.section-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; gap: 20px; flex-wrap: wrap; }
.section-header h2 { font-size: 30px; margin-bottom: 6px; }
.section-header.centered { justify-content: center; text-align: center; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 5px 12px;
  border-radius: 4px;
  margin-bottom: 10px;
  letter-spacing: .5px;
}
.section-tag i { font-size: 11px; }
.view-all { color: var(--primary); font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 6px; }
.view-all:hover { gap: 10px; color: var(--primary-dark); }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  color: var(--accent);
  background: var(--accent-light);
  letter-spacing: .4px;
}
.tag-light { background: rgba(255,255,255,.18); color: #fff; border: 1px solid rgba(255,255,255,.35); }
.tag-accent { color: var(--accent); background: var(--accent-light); border-left: 3px solid var(--accent); }

/* ---------- 顶部导航 ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(31,59,82,.05);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 68px;
}
.header-inside { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
}
.logo-text { font-size: 17px; font-weight: 700; color: var(--text-dark); letter-spacing: .3px; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav > a { color: var(--text-secondary); font-size: 15px; font-weight: 500; text-decoration: none; position: relative; padding: 8px 2px; transition: color var(--transition); }
.main-nav > a:hover { color: var(--primary); }
.main-nav > a.active { color: var(--primary); }
.main-nav > a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px; background: var(--primary); border-radius: 2px; }
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 7px 14px;
  width: 190px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav-search i { color: var(--text-muted); font-size: 14px; }
.nav-search input { border: none; outline: none; background: transparent; font-size: 14px; color: var(--text-dark); width: 100%; }
.nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47,109,140,.12); }
.menu-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--primary); cursor: pointer; padding: 6px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 540px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--primary-dark);
}
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(16,40,56,.88) 0%, rgba(30,58,79,.72) 45%, rgba(30,58,79,.35) 100%); }
.hero-content { position: relative; z-index: 2; padding: 80px 0; }
.hero-text { max-width: 680px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.14);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.25);
  color: rgba(255,255,255,.95);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-text h1 { font-size: 42px; color: #fff; line-height: 1.3; margin-bottom: 18px; }
.hero-sub { font-size: 18px; color: rgba(255,255,255,.92); max-width: 580px; line-height: 1.7; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- 数据信任条 ---------- */
.stats-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 36px 0; }
.stat-item { text-align: center; padding: 8px 12px; }
.stat-num { font-size: 40px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 6px; }

/* ---------- 品牌故事 ---------- */
.about-section { background: var(--bg); }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius-lg); width: 100%; height: 430px; object-fit: cover; box-shadow: var(--shadow-card); }
.media-badge { position: absolute; left: 24px; bottom: 24px; background: rgba(47,109,140,.92); color: #fff; padding: 10px 18px; border-radius: 8px; font-size: 14px; font-weight: 600; backdrop-filter: blur(4px); box-shadow: 0 4px 12px rgba(0,0,0,.2); }
.about-text { padding-left: 40px; }
.about-text h2 { font-size: 30px; line-height: 1.35; margin: 16px 0 18px; }
.about-text p { color: var(--text-secondary); font-size: 15px; }

/* ---------- 精选内容（非对称） ---------- */
.featured-section { background: #fff; }
.featured-grid { display: flex; gap: 24px; flex-wrap: wrap; }
.featured-main { flex: 0 0 58%; }
.featured-card-lg { position: relative; border-radius: var(--radius-lg); overflow: hidden; height: 470px; box-shadow: var(--shadow-card); transition: transform var(--transition), box-shadow var(--transition); }
.featured-card-lg:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.featured-card-lg img { width: 100%; height: 100%; object-fit: cover; }
.featured-card-overlay { position: absolute; left: 0; right: 0; bottom: 0; padding: 32px; background: linear-gradient(0deg, rgba(16,40,56,.85) 0%, rgba(16,40,56,.35) 70%, rgba(16,40,56,0) 100%); color: #fff; }
.featured-card-overlay h3 { color: #fff; font-size: 22px; margin: 10px 0 8px; }
.featured-card-overlay p { color: rgba(255,255,255,.85); font-size: 14px; margin-bottom: 14px; }
.featured-side { flex: 1; min-width: 280px; display: flex; flex-direction: column; }
.featured-list { display: flex; flex-direction: column; height: 100%; }
.featured-list-item { display: flex; gap: 16px; padding: 26px 8px; border-bottom: 1px solid var(--border); transition: background var(--transition), padding-left var(--transition); }
.featured-list-item:first-child { padding-top: 0; }
.featured-list-item:last-child { border-bottom: none; }
.featured-list-item:hover { background: var(--bg); padding-left: 14px; }
.featured-num { font-size: 20px; font-weight: 700; color: var(--accent); min-width: 38px; line-height: 1.2; }
.featured-list-item h4 { font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.featured-list-item p { font-size: 14px; color: var(--text-secondary); margin-bottom: 0; }

/* ---------- 最新资讯 ---------- */
.news-section { background: var(--bg); }
.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-card { display: flex; gap: 20px; background: #fff; border-radius: var(--radius-card); padding: 20px; border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: transform var(--transition), box-shadow var(--transition); }
.news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.news-thumb { width: 80px; height: 80px; min-width: 80px; border-radius: 8px; overflow: hidden; background: var(--primary-light); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { flex: 1; overflow: hidden; }
.news-body .tag { margin-bottom: 8px; }
.news-body h3 { font-size: 16px; margin-bottom: 4px; font-weight: 600; line-height: 1.4; }
.news-body h3 a { color: var(--text-dark); }
.news-body h3 a:hover { color: var(--primary); }
.news-body > p { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--text-muted); }
.news-meta a { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.news-meta a:hover { gap: 8px; color: var(--primary-dark); }
.empty-state { text-align: center; padding: 64px 20px; background: #fff; border: 1px dashed var(--border); border-radius: var(--radius-card); color: var(--text-muted); font-size: 15px; }
.empty-state i { font-size: 38px; margin-bottom: 12px; color: var(--text-muted); display: block; }

/* ---------- 信任背书 ---------- */
.trust-section { background: #EDF3F7; }
.trust-logos { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 16px; }
.trust-logo { display: flex; align-items: center; justify-content: center; height: 64px; min-width: 130px; background: rgba(255,255,255,.6); border-radius: 8px; font-size: 14px; font-weight: 600; color: var(--text-secondary); border: 1px solid rgba(47,109,140,.08); transition: all var(--transition); text-align: center; padding: 8px 16px; }
.trust-logo:hover { background: #fff; box-shadow: var(--shadow-card); color: var(--primary); }
.trust-quote { text-align: center; margin-top: 40px; font-size: 16px; color: var(--text-dark); font-style: italic; max-width: 760px; margin-left: auto; margin-right: auto; line-height: 1.8; }
.trust-author { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq-section { background: var(--bg); }
.faq-accordion { list-style: none; margin: 0; padding: 0; }
.faq-accordion .accordion-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); margin-bottom: 14px; box-shadow: var(--shadow-card); overflow: hidden; transition: box-shadow var(--transition); }
.faq-accordion .accordion-item:hover { box-shadow: var(--shadow-hover); }
.faq-accordion .accordion-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--text-dark); background: #fff; border-bottom: 1px solid transparent; line-height: 1.4; }
.faq-accordion .accordion-item.is-active .accordion-title { border-bottom-color: var(--border); }
.faq-icon { width: 28px; height: 28px; min-width: 28px; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-light); color: var(--primary); border-radius: 50%; font-size: 13px; transition: transform var(--transition), background var(--transition), color var(--transition); }
.faq-accordion .accordion-item.is-active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-accordion .accordion-content { background: var(--bg); color: var(--text-secondary); font-size: 14px; line-height: 1.7; padding: 20px 22px; border-top: none; }
.faq-accordion .accordion-content p { margin: 0; }

/* ---------- CTA ---------- */
.cta-section { background: var(--bg); padding: 30px 0 90px; }
.cta-card { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: var(--radius-lg); padding: 56px 48px; text-align: center; position: relative; overflow: hidden; box-shadow: 0 12px 32px rgba(47,109,140,.28); }
.cta-card::before { content: ''; position: absolute; top: -60px; right: -60px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,.06); }
.cta-card h2 { color: #fff; font-size: 28px; margin-bottom: 12px; }
.cta-card p { color: rgba(255,255,255,.9); font-size: 15px; max-width: 580px; margin: 0 auto 28px; }
.cta-form { display: flex; justify-content: center; align-items: center; gap: 12px; flex-wrap: wrap; }
.cta-form input { width: 280px; max-width: 100%; height: 46px; border: none; border-radius: var(--radius-btn); padding: 0 16px; font-size: 14px; background: #fff; color: var(--text-dark); }
.cta-form input::placeholder { color: var(--text-muted); }
.cta-form .btn { height: 46px; background: var(--text-dark); color: #fff; border: none; }
.cta-form .btn:hover { background: #0e2230; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(0,0,0,.2); }

/* ---------- Footer ---------- */
.site-footer { background: var(--footer-bg); color: var(--footer-text); padding-top: 60px; }
.footer-brand .footer-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,.68); max-width: 340px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col ul li { margin-bottom: 10px; font-size: 14px; color: rgba(255,255,255,.72); display: flex; align-items: center; gap: 8px; }
.footer-col ul li i { color: rgba(255,255,255,.5); font-size: 13px; width: 16px; }
.footer-col ul li a { color: rgba(255,255,255,.72); transition: color var(--transition); }
.footer-col ul li a:hover { color: #fff; }
.footer-sub-desc { font-size: 13px; color: rgba(255,255,255,.65); margin-bottom: 12px; }
.footer-subscribe { display: flex; gap: 8px; }
.footer-subscribe input { flex: 1; height: 38px; border: none; border-radius: var(--radius-btn); padding: 0 12px; font-size: 13px; background: rgba(255,255,255,.14); color: #fff; }
.footer-subscribe input::placeholder { color: rgba(255,255,255,.55); }
.footer-subscribe button { width: 38px; height: 38px; border: none; border-radius: var(--radius-btn); background: var(--primary); color: #fff; cursor: pointer; transition: background var(--transition); }
.footer-subscribe button:hover { background: var(--primary-dark); }
.footer-bottom { margin-top: 40px; border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.5); }
.footer-bottom p { margin: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .about-text { padding-left: 20px; }
  .featured-grid { flex-direction: column; }
  .featured-main { flex: 1; }
  .featured-card-lg { height: 380px; }
  .main-nav { gap: 20px; }
  .nav-search { width: 160px; }
}
@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-header h2 { font-size: 24px; }
  .hero { min-height: 480px; }
  .hero-text h1 { font-size: 28px; }
  .hero-sub { font-size: 16px; }
  .about-media img { height: 300px; }
  .about-text { padding-left: 0; margin-top: 24px; }
  .featured-card-lg { height: 320px; }
  .news-card { flex-direction: row; }
  .cta-card { padding: 40px 24px; }
  .cta-card h2 { font-size: 22px; }
  .cta-form input { width: 100%; }
  .footer-bottom p { font-size: 12px; }
  /* 移动端导航 */
  .menu-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 14px;
    box-shadow: 0 8px 20px rgba(31,59,82,.1);
    display: none;
    border-bottom: 1px solid var(--border);
  }
  .main-nav.open { display: flex; }
  .main-nav > a { padding: 8px 0; font-size: 15px; }
  .main-nav > a.active::after { display: none; }
  .nav-search { width: 100%; }
  .nav-cta { margin-top: 4px; width: 100%; justify-content: center; }
  .header-inside .logo { z-index: 2; }
}
@media (max-width: 640px) {
  .hero-text h1 { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .news-card { flex-direction: column; }
  .news-thumb { width: 100%; height: 160px; min-width: 0; }
  .hero-actions .btn { width: 100%; }
  .stat-num { font-size: 32px; }
  .cta-card { padding: 32px 18px; }
  .cta-card h2 { font-size: 20px; }
  .footer-subscribe input { min-width: 0; }
}

/* roulang page: article */
:root {
  --primary: #2F6D8C;
  --primary-dark: #1E4A63;
  --accent: #B98A5A;
  --bg: #F7F9FB;
  --card-bg: #FFFFFF;
  --text-dark: #1E3A4F;
  --text-secondary: #5B7A8C;
  --text-light: #8FA8B8;
  --border: #E3ECF2;
  --footer-bg: #162B3A;
  --radius: 10px;
  --radius-lg: 12px;
  --radius-sm: 6px;
  --radius-pill: 20px;
  --shadow: 0 2px 12px rgba(31, 59, 82, 0.06);
  --shadow-hover: 0 8px 24px rgba(31, 59, 82, 0.12);
  --transition: 0.2s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { list-style: none; }

html { scroll-behavior: smooth; }

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
input, button, textarea { font-family: inherit; }

.grid-container {
  max-width: 1200px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  line-height: 1;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 13px 30px;
  font-size: 15px;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(47, 109, 140, 0.28);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(47, 109, 140, 0.2);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  padding: 11px 26px;
  font-size: 15px;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(47, 109, 140, 0.22);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-outline:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }

/* ========== Header ========== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(31, 59, 82, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}
.logo-area { flex-shrink: 0; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: background var(--transition);
}
.logo:hover .logo-icon { background: var(--accent); }
.logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.main-nav > a:not(.btn) {
  padding: 8px 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.main-nav > a:not(.btn):hover,
.main-nav > a:not(.btn).active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.nav-search {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  width: 200px;
  margin-left: 8px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav-search i {
  color: var(--text-light);
  font-size: 14px;
  margin-right: 8px;
}
.nav-search input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  width: 100%;
  color: var(--text-dark);
}
.nav-search input::placeholder { color: var(--text-light); }
.nav-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(47, 109, 140, 0.18);
}
.nav-cta { flex-shrink: 0; margin-left: 8px; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text-dark);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: background var(--transition);
}
.menu-toggle:hover { background: var(--bg); }

/* ========== Breadcrumb ========== */
.breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-light);
}
.breadcrumb-bar .grid-container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
}
.breadcrumb-bar a {
  color: var(--text-light);
  transition: color var(--transition);
}
.breadcrumb-bar a:hover { color: var(--primary); }
.breadcrumb-bar .sep {
  color: var(--border);
  margin: 0 8px;
  font-size: 12px;
}
.breadcrumb-bar .crumb-current {
  color: var(--text-dark);
  font-weight: 500;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: inline-block;
  vertical-align: bottom;
}

/* ========== Article Page ========== */
.article-page {
  padding: 48px 0 80px;
}
.article-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 48px 52px;
}
.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
  text-align: center;
  margin-bottom: 18px;
  word-break: break-word;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
  margin-bottom: 36px;
}
.article-meta i {
  margin-right: 6px;
  color: var(--accent);
}
.article-content {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-dark);
}
.article-content p {
  margin-bottom: 24px;
}
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  margin: 40px 0 16px;
  line-height: 1.35;
}
.article-content h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 32px 0 12px;
  line-height: 1.4;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 24px 0 10px;
}
.article-content ul,
.article-content ol {
  margin: 0 0 24px 24px;
  padding-left: 4px;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li {
  margin-bottom: 8px;
}
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg);
  padding: 16px 24px;
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
  font-size: 15px;
  margin: 24px 0;
}
.article-content img {
  border-radius: var(--radius);
  margin: 24px 0;
  width: 100%;
}
.article-content a {
  font-weight: 500;
  text-decoration: underline;
}
.article-content a:hover {
  color: var(--accent);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  font-size: 15px;
}
.article-content th {
  background: var(--bg);
  font-weight: 600;
}
.article-content pre {
  background: var(--footer-bg);
  color: #fff;
  padding: 16px 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.6;
}
.article-content code {
  font-family: "SFMono-Regular", Consolas, monospace;
}
.article-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

/* ========== Article Footer ========== */
.article-footer {
  margin-top: 40px;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}
.prev-next {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  margin-bottom: 40px;
}
.prev-next a {
  font-size: 14px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition);
}
.prev-next a:hover { color: var(--primary); }

.related-posts {
  margin-bottom: 36px;
}
.related-posts h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  position: relative;
  padding-left: 14px;
}
.related-posts h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 14px;
  height: 100%;
  transition: all var(--transition);
}
.related-card:hover {
  background: #fff;
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.related-card img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.related-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
  line-height: 1.4;
}
.related-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========== Empty State ========== */
.empty-state {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 80px 40px;
  text-align: center;
}
.empty-state i {
  font-size: 48px;
  color: var(--text-light);
  margin-bottom: 16px;
}
.empty-state p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--footer-bg);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 0;
  border-top: 4px solid var(--primary);
}
.site-footer .grid-x {
  row-gap: 32px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-logo i {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: #fff;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 340px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-col h4 {
  font-size: 15px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  font-size: 14px;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-col ul a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}
.footer-col ul a:hover {
  color: #fff;
}
.footer-col ul i {
  margin-right: 6px;
  color: var(--accent);
}
.footer-sub-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 12px;
}
.footer-subscribe {
  display: flex;
  gap: 8px;
}
.footer-subscribe input {
  flex: 1;
  min-width: 0;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.footer-subscribe input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(47, 109, 140, 0.3);
}
.footer-subscribe input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}
.footer-subscribe button {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--primary);
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 15px;
  transition: background var(--transition), transform var(--transition);
}
.footer-subscribe button:hover {
  background: var(--accent);
  transform: translateY(-2px);
}
.footer-subscribe button:active {
  transform: translateY(0);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 40px;
  padding: 18px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom p { margin: 0; }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .article-card { padding: 36px; }
  .main-nav { gap: 2px; }
  .nav-search { width: 160px; }
  .logo-text { font-size: 16px; }
}

@media (max-width: 768px) {
  .site-header { position: sticky; }
  .menu-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 20px;
    box-shadow: 0 8px 24px rgba(31, 59, 82, 0.12);
    border-bottom: 1px solid var(--border);
    z-index: 99;
  }
  .main-nav.open { display: flex; }
  .main-nav > a:not(.btn) {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }
  .nav-search {
    width: 100%;
    margin: 12px 0;
  }
  .nav-cta {
    width: 100%;
    margin-top: 8px;
  }
  .article-page {
    padding: 32px 0 56px;
  }
  .article-card {
    padding: 28px 20px;
    border-radius: var(--radius);
  }
  .article-title {
    font-size: 24px;
  }
  .article-meta {
    justify-content: flex-start;
    gap: 12px 16px;
  }
  .article-content {
    font-size: 15px;
  }
  .article-content h2 {
    font-size: 21px;
  }
  .related-posts .cell {
    margin-bottom: 16px;
  }
  .prev-next {
    flex-direction: column;
    gap: 12px;
  }
  .breadcrumb-bar .crumb-current {
    max-width: 200px;
  }
}

@media (max-width: 640px) {
  .header-inner { height: 56px; }
  .logo-text { font-size: 15px; }
  .nav-cta { font-size: 13px; padding: 8px 12px; }
  .main-nav { top: 56px; }
  .article-title { font-size: 22px; }
  .article-meta { font-size: 12px; }
  .article-footer .btn-block { font-size: 14px; }
  .footer-bottom { font-size: 12px; }
}

/* roulang page: category1 */
:root {
      --primary: #2F6D8C;
      --primary-dark: #1E3A4F;
      --accent: #B98A5A;
      --bg: #F7F9FB;
      --card: #FFFFFF;
      --text: #1E3A4F;
      --text-secondary: #5B7A8C;
      --text-weak: #8FA8B8;
      --border: #E3ECF2;
      --footer-bg: #162B3A;
      --radius: 10px;
      --radius-lg: 12px;
      --shadow: 0 2px 12px rgba(31, 59, 82, 0.06);
      --shadow-hover: 0 8px 24px rgba(31, 59, 82, 0.12);
      --transition: all 0.2s ease;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    ul, ol { list-style: none; margin: 0; padding: 0; }
    p { margin: 0; }
    h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.3; }
    button, input { font-family: inherit; }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 28px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(47, 109, 140, 0.2); }
    .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(47, 109, 140, 0.3); }
    .btn-light { background: #fff; color: var(--primary); box-shadow: 0 4px 12px rgba(30, 58, 79, 0.12); }
    .btn-light:hover { background: #f2f6f9; transform: translateY(-2px); }
    .btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.7); }
    .btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); color: #fff; transform: translateY(-2px); }
    .btn-sm { height: 42px; padding: 0 22px; font-size: 14px; }
    .btn:focus, input:focus, button:focus { outline: 2px solid rgba(47, 109, 140, 0.4); outline-offset: 2px; }

    .main-nav {
      position: sticky;
      top: 0;
      z-index: 999;
      display: flex;
      align-items: center;
      gap: 32px;
      background: #fff;
      border-bottom: 1px solid var(--border);
      box-shadow: 0 1px 6px rgba(31, 59, 82, 0.06);
      padding: 0 40px;
      height: 68px;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-right: 12px;
      white-space: nowrap;
    }
    .logo-icon {
      width: 34px;
      height: 34px;
      background: var(--primary);
      color: #fff;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      box-shadow: 0 2px 8px rgba(47, 109, 140, 0.25);
    }
    .main-nav > a:not(.nav-brand):not(.btn) {
      font-size: 15px;
      color: var(--text-secondary);
      padding: 8px 2px;
      border-bottom: 2px solid transparent;
      font-weight: 500;
      white-space: nowrap;
    }
    .main-nav > a:not(.nav-brand):not(.btn):hover { color: var(--primary); border-bottom-color: var(--primary); }
    .main-nav > a:not(.nav-brand):not(.btn).active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
    .nav-search {
      display: flex;
      align-items: center;
      gap: 8px;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 20px;
      height: 40px;
      padding: 0 16px;
      width: 220px;
      color: var(--text-weak);
      margin-left: auto;
    }
    .nav-search input { border: none; background: transparent; outline: none; font-size: 14px; width: 100%; color: var(--text); }
    .nav-search input::placeholder { color: var(--text-weak); }
    .nav-search:focus-within { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(47, 109, 140, 0.12); }
    .nav-cta { margin-left: 8px; }
    .nav-toggle {
      display: none;
      margin-left: auto;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: #fff;
      color: var(--primary);
      font-size: 18px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    .page-hero {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 96px 0 104px;
    }
    .page-hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(22, 43, 58, 0.92) 0%, rgba(47, 109, 140, 0.78) 100%);
    }
    .page-hero .grid-container { position: relative; z-index: 1; }
    .hero-kicker {
      display: inline-block;
      color: #fff;
      background: rgba(185, 138, 90, 0.22);
      border: 1px solid rgba(185, 138, 90, 0.6);
      padding: 5px 18px;
      border-radius: 20px;
      font-size: 13px;
      letter-spacing: 1px;
      margin-bottom: 20px;
    }
    .page-hero h1 {
      color: #fff;
      font-size: 42px;
      line-height: 1.25;
      margin-bottom: 18px;
      font-weight: 800;
      letter-spacing: 1px;
    }
    .hero-desc {
      color: rgba(255, 255, 255, 0.9);
      font-size: 17px;
      max-width: 640px;
      margin: 0 auto;
      line-height: 1.8;
    }

    .section { padding: 88px 0; }
    .section.tint { background: var(--bg); }
    .section.white { background: #fff; }
    .section-head { text-align: center; max-width: 660px; margin: 0 auto 48px; }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--accent);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }
    .section-tag::before, .section-tag::after { content: ''; width: 18px; height: 2px; background: var(--accent); border-radius: 1px; }
    .section-head h2 { font-size: 30px; color: var(--primary-dark); margin-bottom: 14px; letter-spacing: 0.5px; }
    .section-head p { color: var(--text-secondary); font-size: 15px; }

    .service-card-wrap { margin-bottom: 24px; }
    .service-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .card-img { height: 200px; overflow: hidden; }
    .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s ease; }
    .service-card:hover .card-img img { transform: scale(1.05); }
    .card-body { padding: 26px 24px 24px; display: flex; flex-direction: column; flex: 1; }
    .card-body h3 { font-size: 18px; color: var(--primary-dark); margin-bottom: 10px; }
    .card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.75; flex: 1; }
    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      margin-top: 16px;
      transition: var(--transition);
    }
    .card-link:hover { gap: 12px; color: var(--primary-dark); }

    .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .process-item {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 36px 24px;
      text-align: center;
      transition: var(--transition);
    }
    .process-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
    .process-num {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      font-size: 18px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px;
      box-shadow: 0 4px 12px rgba(47, 109, 140, 0.28);
    }
    .process-item h3 { font-size: 18px; color: var(--primary-dark); margin-bottom: 10px; }
    .process-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

    .scene-layout { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
    .scene-img { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
    .scene-img img { width: 100%; height: 440px; object-fit: cover; }
    .scene-badge {
      position: absolute;
      left: 20px;
      bottom: 20px;
      background: rgba(30, 58, 79, 0.92);
      color: #fff;
      padding: 10px 18px;
      border-radius: 10px;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .scene-text .section-tag::before { display: none; }
    .scene-text .section-tag { margin-bottom: 14px; }
    .scene-text h2 { font-size: 28px; color: var(--primary-dark); margin-bottom: 14px; }
    .scene-text > p { color: var(--text-secondary); margin-bottom: 22px; }
    .scene-list li {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      padding: 15px 0;
      border-bottom: 1px dashed var(--border);
    }
    .scene-list li:last-child { border-bottom: none; }
    .scene-list i { color: var(--accent); font-size: 16px; margin-top: 5px; width: 20px; }
    .scene-list strong { display: block; color: var(--primary-dark); font-size: 16px; margin-bottom: 4px; }
    .scene-list span { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

    .assure-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
      text-align: center;
      box-shadow: var(--shadow);
      height: 100%;
      transition: var(--transition);
    }
    .assure-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
    .assure-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: rgba(47, 109, 140, 0.1);
      color: var(--primary);
      font-size: 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .assure-card h3 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; }
    .assure-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

    .stats-section { background: var(--primary-dark); padding: 64px 0; }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
    .stat-item { text-align: center; }
    .stat-num { font-size: 44px; font-weight: 800; color: #fff; line-height: 1.2; }
    .stat-num span { font-size: 22px; font-weight: 600; color: rgba(255, 255, 255, 0.8); margin-left: 2px; }
    .stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.72); margin-top: 8px; letter-spacing: 1px; }

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 10px;
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.open { box-shadow: var(--shadow); border-color: #d4e3ed; }
    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      padding: 20px 24px;
      background: none;
      border: none;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary-dark);
      text-align: left;
    }
    .faq-icon {
      width: 30px;
      height: 30px;
      border: 1px solid var(--primary);
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 22px;
      font-weight: 300;
      flex-shrink: 0;
      transition: transform 0.25s ease, background 0.25s;
    }
    .faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
    .faq-answer { display: none; padding: 0 24px 22px; color: var(--text-secondary); font-size: 14px; line-height: 1.8; }
    .faq-item.open .faq-answer { display: block; }

    .cta-section { padding: 24px 0 88px; }
    .cta-box {
      background: linear-gradient(120deg, #2F6D8C, #3E85A8);
      border-radius: 16px;
      padding: 60px 40px;
      text-align: center;
      box-shadow: 0 16px 40px rgba(47, 109, 140, 0.28);
      position: relative;
      overflow: hidden;
    }
    .cta-box::after {
      content: '';
      position: absolute;
      right: -40px;
      top: -40px;
      width: 180px;
      height: 180px;
      background: rgba(255, 255, 255, 0.06);
      border-radius: 50%;
    }
    .cta-box h2 { color: #fff; font-size: 28px; margin-bottom: 12px; position: relative; z-index: 1; }
    .cta-box p { color: rgba(255, 255, 255, 0.88); max-width: 520px; margin: 0 auto 30px; font-size: 15px; position: relative; z-index: 1; }
    .cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 1; }
    .cta-note { color: rgba(255, 255, 255, 0.72); font-size: 13px; margin-top: 20px; position: relative; z-index: 1; }

    .site-footer {
      background: var(--footer-bg);
      color: rgba(255, 255, 255, 0.72);
      border-top: 4px solid var(--primary);
      padding-top: 56px;
    }
    .footer-brand .footer-logo {
      color: #fff;
      font-size: 18px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand .footer-logo i { color: var(--accent); }
    .footer-brand p {
      font-size: 14px;
      margin-top: 16px;
      line-height: 1.85;
      color: rgba(255, 255, 255, 0.65);
      max-width: 340px;
    }
    .footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
    .footer-col ul li { margin-bottom: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.65); }
    .footer-col ul li i { margin-right: 8px; color: var(--accent); }
    .footer-col ul li a:hover { color: #fff; }
    .footer-sub-desc { font-size: 13px; color: rgba(255, 255, 255, 0.55); margin-bottom: 12px; }
    .footer-subscribe { display: flex; gap: 8px; }
    .footer-subscribe input {
      flex: 1;
      min-width: 0;
      height: 42px;
      border-radius: 8px;
      border: none;
      padding: 0 14px;
      font-size: 14px;
      background: #fff;
      color: var(--text);
    }
    .footer-subscribe input::placeholder { color: var(--text-weak); }
    .footer-subscribe button {
      width: 46px;
      height: 42px;
      border-radius: 8px;
      border: none;
      background: var(--primary);
      color: #fff;
      font-size: 15px;
      cursor: pointer;
      transition: var(--transition);
    }
    .footer-subscribe button:hover { background: #3E85A8; }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      margin-top: 48px;
      padding: 20px 0;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    @media (max-width: 1024px) {
      .main-nav { gap: 20px; padding: 0 20px; }
      .nav-search { width: 180px; }
      .process-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .main-nav { flex-wrap: wrap; padding: 0 16px; height: auto; min-height: 64px; gap: 12px; }
      .nav-brand { width: auto; }
      .nav-toggle { display: inline-flex; margin-left: auto; }
      .main-nav > a:not(.nav-brand):not(.btn) { display: none; width: 100%; }
      .nav-search { display: none; width: 100%; margin-left: 0; order: 5; }
      .nav-cta { display: none; order: 6; width: 100%; }
      .main-nav.nav-open > a:not(.nav-brand):not(.btn) { display: block; }
      .main-nav.nav-open .nav-search { display: flex; }
      .main-nav.nav-open .nav-cta { display: inline-flex; }
      .page-hero { padding: 64px 0 72px; }
      .page-hero h1 { font-size: 32px; }
      .hero-desc { font-size: 16px; }
      .section { padding: 64px 0; }
      .section-head h2 { font-size: 26px; }
      .scene-layout { grid-template-columns: 1fr; gap: 36px; }
      .scene-img img { height: 300px; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
      .cta-box { padding: 44px 24px; }
      .cta-box h2 { font-size: 24px; }
      .cta-buttons .btn { width: 100%; }
      .footer-bottom { margin-top: 32px; }
    }

    @media (max-width: 520px) {
      .page-hero h1 { font-size: 28px; }
      .process-grid { grid-template-columns: 1fr; }
      .scene-img img { height: 240px; }
      .stat-num { font-size: 34px; }
      .cta-box h2 { font-size: 22px; }
    }