/* roulang page: index */
:root {
  --primary: #1B5E8A;
  --primary-dark: #14486C;
  --primary-light: #EAF1F6;
  --accent: #E8871E;
  --accent-dark: #D6760B;
  --bg: #F5F7FA;
  --dark: #12283A;
  --text: #1F2A3A;
  --text-body: #45505E;
  --text-muted: #7E8C9A;
  --border: #DDE6EC;
  --white: #ffffff;
  --green: #2F9E62;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 2px 10px rgba(27,94,138,0.08);
  --shadow-hover: 0 8px 30px rgba(27,94,138,0.16);
  --transition: all 0.25s ease;
  --container-w: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: var(--primary); }
a:hover { color: var(--primary-dark); }
.container-custom {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 48px 0; }
.section-title { font-size: 30px; font-weight: 700; color: var(--text); letter-spacing: 0.02em; }
.section-subtitle { color: var(--text-muted); font-size: 15px; margin-top: 8px; }

/* ===== 按钮 ===== */
.btn-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
}
.btn-primary-custom:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(27,94,138,0.22);
}
.btn-accent-custom {
  background: var(--accent);
  color: #fff;
}
.btn-accent-custom:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(232,135,30,0.24);
}
.btn-outline-custom {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-outline-custom:hover {
  background: rgba(27,94,138,0.06);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
}
.btn-accent-custom:focus, .btn-primary-custom:focus, .btn-outline-custom:focus {
  outline: 2px solid rgba(27,94,138,0.35);
  outline-offset: 2px;
}

/* ===== 导航 ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1040;
  height: 72px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(221,230,236,0.6);
  transition: box-shadow 0.25s ease;
}
.header.scrolled { box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-logo { font-size: 19px; font-weight: 700; color: var(--text); display: flex; align-items: center; letter-spacing: 0.5px; }
.brand-logo span { color: var(--primary); }
.nav-menu { display: flex; align-items: center; list-style: none; margin: 0; padding: 0; }
.nav-menu li { margin: 0 10px; }
.nav-menu li:first-child { margin-left: 0; }
.nav-link-custom {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 2px 8px;
  position: relative;
  background: transparent;
  border: none;
  transition: color 0.25s ease;
}
.nav-link-custom::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 3px;
  background: var(--primary);
  border-radius: 3px 3px 0 0;
  transition: width 0.3s ease;
}
.nav-link-custom:hover { color: var(--primary); }
.nav-link-custom:hover::after { width: 100%; }
.nav-link-custom.active { color: var(--primary); font-weight: 600; }
.nav-link-custom.active::after { width: 100%; }
.nav-cta { margin-left: 32px; }
.nav-cta .btn-custom { height: 40px; padding: 0 20px; font-size: 14px; }
.nav-toggle { display: none; background: transparent; border: none; font-size: 24px; color: var(--text); cursor: pointer; padding: 4px 8px; }

@media (max-width: 991.98px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    display: none;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { margin: 8px 0; width: 100%; }
  .nav-link-custom { width: 100%; display: block; }
  .nav-link-custom::after { display: none; }
  .nav-cta { margin-left: 0; margin-top: 12px; width: 100%; }
  .nav-cta .btn-custom { width: 100%; }
}

/* ===== Hero ===== */
.hero {
  padding-top: 72px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero-inner {
  display: flex;
  align-items: center;
  min-height: 560px;
  padding: 60px 0;
  position: relative;
}
.hero-shape {
  position: absolute;
  right: -80px;
  top: 40px;
  width: 480px;
  height: 440px;
  background: var(--primary-light);
  border-radius: 60% 40% 30% 50% / 50% 40% 50% 60%;
  z-index: 0;
  pointer-events: none;
}
.hero-left {
  position: relative;
  z-index: 2;
  flex: 0 0 55%;
  max-width: 55%;
}
.hero-right {
  position: relative;
  z-index: 2;
  flex: 0 0 45%;
  max-width: 45%;
  text-align: right;
}
.hero-right img {
  max-width: 92%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  display: inline-block;
}
.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
}
.hero-title {
  font-size: 46px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  max-width: 520px;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.hero-title .brand-mark { color: var(--primary); }
.hero-desc {
  font-size: 18px;
  color: var(--text-body);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-float-card {
  position: absolute;
  bottom: 24px;
  right: 6px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  padding: 16px 20px;
  z-index: 3;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-float-num {
  font-size: 34px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.hero-float-text { font-size: 13px; color: var(--text-muted); line-height: 1.4; }

@media (max-width: 991.98px) {
  .hero-inner { flex-direction: column; padding: 40px 0 60px; }
  .hero-left, .hero-right { flex: 0 0 100%; max-width: 100%; text-align: center; }
  .hero-title { font-size: 34px; max-width: 100%; }
  .hero-desc { max-width: 100%; font-size: 16px; }
  .hero-cta { justify-content: center; }
  .hero-right { margin-top: 40px; }
  .hero-right img { max-width: 80%; }
  .hero-shape { display: none; }
  .hero-float-card { bottom: -12px; right: 20%; }
}
@media (max-width: 575.98px) {
  .hero-title { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .hero-float-card { right: 8%; bottom: -10px; padding: 12px 14px; }
  .hero-float-num { font-size: 26px; }
}

/* ===== 数据栏 ===== */
.stats-bar { padding: 0 0 40px; }
.stats-inner {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item { text-align: center; padding: 10px 4px; }
.stat-num { font-size: 38px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-unit { font-size: 16px; color: var(--text-muted); font-weight: 400; margin-left: 2px; }
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 6px; }

@media (max-width: 991.98px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
@media (max-width: 575.98px) {
  .stats-inner { padding: 24px 16px; }
  .stat-num { font-size: 28px; }
}

/* ===== 优惠阶梯 ===== */
.tiers-section { background: #fff; }
.tiers-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; align-items: stretch; }
.tier-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}
.tier-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.tier-card.featured {
  border: 2px solid var(--primary);
  box-shadow: 0 8px 30px rgba(27,94,138,0.14);
  background: var(--primary-light);
}
.tier-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
}
.tier-name { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.tier-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.tier-price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 20px; }
.tier-price-original { font-size: 14px; color: var(--text-muted); text-decoration: line-through; }
.tier-price-now { font-size: 30px; font-weight: 800; color: var(--accent); }
.tier-price-period { font-size: 13px; color: var(--text-muted); }
.tier-list { list-style: none; padding: 0; margin: 0 0 24px; flex-grow: 1; }
.tier-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--text-body);
}
.tier-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
  font-weight: 700;
}
.tier-list li.no-have::before {
  content: "—";
  color: var(--text-muted);
}
.tier-cta .btn-custom { width: 100%; }

@media (max-width: 991.98px) {
  .tiers-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
}

/* ===== 对比表 ===== */
.compare-section { background: var(--bg); }
.compare-wrap {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 32px;
  margin-top: 40px;
  overflow-x: auto;
}
.compare-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.compare-table th, .compare-table td {
  padding: 16px 18px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.compare-table th { background: var(--primary-light); color: var(--text); font-weight: 600; font-size: 15px; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; font-weight: 500; color: var(--text); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr.highlight-row td { background: rgba(232,135,30,0.06); }
.compare-table .fa-check { color: var(--green); }
.compare-table .fa-minus { color: var(--text-muted); }
.cell-cta { padding-top: 20px !important; }
.cell-cta .btn-custom { min-width: 130px; }

@media (max-width: 991.98px) {
  .compare-wrap { padding: 20px 12px; }
  .compare-table hidden-mobile { display: none; }
  .compare-table th, .compare-table td { padding: 12px 8px; font-size: 13px; }
  .compare-table { min-width: 640px; }
}

/* ===== 限时入口 ===== */
.limited-section { background: var(--dark); padding: 64px 0; }
.limited-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.limited-left { flex: 1 1 440px; }
.limited-left h2 { color: #fff; font-size: 32px; font-weight: 700; margin-bottom: 16px; }
.limited-left h2 .highlight { color: var(--accent); }
.limited-left p { color: rgba(255,255,255,0.75); font-size: 15px; max-width: 420px; }
.countdown-wrap { display: flex; gap: 14px; margin-top: 28px; }
.countdown-item {
  background: #fff;
  border-radius: 8px;
  width: 68px;
  height: 76px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.countdown-num { font-size: 30px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.countdown-unit { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.limited-right {
  flex: 1 1 300px;
  text-align: center;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 40px 32px;
  border: 1px solid rgba(255,255,255,0.12);
}
.limited-right .icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.limited-right h4 { color: #fff; font-size: 20px; margin-bottom: 10px; }
.limited-right p { color: rgba(255,255,255,0.7); font-size: 14px; margin-bottom: 20px; }

@media (max-width: 767.98px) {
  .limited-inner { flex-direction: column; text-align: center; }
  .limited-left p { margin-left: auto; margin-right: auto; }
  .countdown-wrap { justify-content: center; }
  .countdown-item { width: 58px; height: 68px; }
  .countdown-num { font-size: 24px; }
}

/* ===== 资讯列表 ===== */
.news-section { background: #fff; }
.news-layout { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; margin-top: 40px; }
.news-feature {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-feature:hover { box-shadow: var(--shadow-hover); }
.news-feature-img { width: 100%; height: 220px; object-fit: cover; display: block; }
.news-feature-body { padding: 24px; }
.news-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.news-feature-title { font-size: 20px; font-weight: 600; color: var(--text); margin-bottom: 10px; line-height: 1.4; }
.news-feature-summary {
  font-size: 14px;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.news-feature-meta { font-size: 13px; color: var(--text-muted); }
.news-list { display: flex; flex-direction: column; }
.news-list-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 12px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.news-list-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: var(--primary); }
.news-list-tag { font-size: 12px; color: var(--primary); background: var(--primary-light); display: inline-block; padding: 2px 8px; border-radius: 4px; margin-bottom: 4px; }
.news-list-title { font-size: 15px; font-weight: 500; color: var(--text); line-height: 1.4; }
.news-list-date { font-size: 12px; color: var(--text-muted); }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  background: var(--bg);
  font-size: 15px;
}
.news-empty i { font-size: 40px; color: #c3d0da; display: block; margin-bottom: 12px; }

@media (max-width: 991.98px) {
  .news-layout { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.faq-wrap { max-width: 820px; margin: 40px auto 0; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}
.faq-q .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary);
  transition: transform 0.3s ease;
  margin-left: 12px;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; border-color: var(--primary); }
.faq-a {
  display: none;
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  border-top: 1px dashed var(--border);
  margin: 0 24px;
  padding-top: 14px;
  padding-left: 0;
  padding-right: 0;
}
.faq-item.open .faq-a { display: block; }

/* ===== 咨询表单 ===== */
.contact-section { background: #fff; }
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  margin-top: 40px;
}
.contact-info h3 { font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.contact-info p { font-size: 15px; color: var(--text-muted); margin-bottom: 24px; max-width: 380px; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; font-size: 14px; color: var(--text-body); }
.contact-list .icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.contact-form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  padding: 32px;
}
.contact-form-card .form-label {
  font-size: 14px;
  color: var(--text-body);
  font-weight: 500;
  margin-bottom: 6px;
}
.contact-form-card .form-control {
  height: 44px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--text);
  padding: 0 14px;
  transition: var(--transition);
  background: var(--bg);
}
.contact-form-card textarea.form-control {
  height: auto;
  padding: 12px 14px;
  resize: vertical;
  min-height: 100px;
}
.contact-form-card .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27,94,138,0.12);
  background: #fff;
}
.contact-form-card .form-control::placeholder { color: #a5b1bc; }
.contact-form-card .btn-custom { width: 100%; margin-top: 8px; }

@media (max-width: 991.98px) {
  .contact-layout { grid-template-columns: 1fr; }
}

/* ===== 页脚 ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-brand span { color: var(--accent); }
.footer-desc { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.65); font-size: 13px; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 13px; color: rgba(255,255,255,0.65); }
.footer-contact-item i { color: var(--accent); margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

@media (max-width: 991.98px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 575.98px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== 面包屑 ===== */
.breadcrumb-area { padding: 24px 0 0; background: var(--bg); }
.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  padding: 0;
  list-style: none;
}
.breadcrumb-custom a { color: var(--primary); }
.breadcrumb-custom .sep { color: #b6c3cf; }

/* ===== 通用辅助 ===== */
.text-ellipsis-1 { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.custom-card-img-fallback {
  background: #dbe4ea;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 13px;
  min-height: 180px;
}
.section-head { text-align: center; margin-bottom: 24px; }
.section-head .section-title { margin-bottom: 10px; }
.section-head .section-subtitle { max-width: 560px; margin: 0 auto; }

@media (max-width: 767.98px) {
  .section-title { font-size: 24px; }
  .section-pad { padding: 48px 0; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1B5E8A;
            --primary-dark: #14486C;
            --primary-light: #EAF1F6;
            --accent: #E8871E;
            --accent-dark: #D6760B;
            --bg: #F5F7FA;
            --bg-darker: #12283A;
            --border: #DDE6EC;
            --text-h: #1F2A3A;
            --text-body: #45505E;
            --text-muted: #7E8C9A;
            --success: #2F9E62;
            --radius: 12px;
            --radius-sm: 6px;
            --shadow: 0 2px 10px rgba(27, 94, 138, 0.08);
            --shadow-hover: 0 8px 30px rgba(27, 94, 138, 0.16);
            --transition: all 0.25s ease;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1;
        }

        .btn-custom:focus-visible {
            outline: 2px solid rgba(27, 94, 138, 0.35);
            outline-offset: 2px;
        }

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

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(27, 94, 138, 0.22);
        }

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

        .btn-accent-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(232, 135, 30, 0.25);
        }

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

        .btn-outline-custom:hover {
            background: rgba(27, 94, 138, 0.05);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-lg-custom {
            height: 48px;
            padding: 0 32px;
            font-size: 16px;
        }

        /* ===== 导航 ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(221, 230, 236, 0.7);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-h);
            line-height: 1.2;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .brand-logo span {
            color: var(--primary);
            font-size: 22px;
            font-weight: 700;
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
        }

        .nav-menu>li {
            position: relative;
        }

        .nav-link-custom {
            display: inline-flex;
            align-items: center;
            height: 72px;
            padding: 0 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-h);
            position: relative;
            transition: color 0.25s ease;
        }

        .nav-link-custom::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
            transition: width 0.25s ease;
        }

        .nav-link-custom:hover {
            color: var(--primary);
        }

        .nav-link-custom:hover::after,
        .nav-link-custom.active::after {
            width: 100%;
        }

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

        .nav-cta {
            margin-left: 32px;
        }

        .nav-cta .btn-custom {
            height: 40px;
            padding: 0 22px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 18px 0;
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }

        .breadcrumb-wrap a {
            color: var(--text-muted);
            transition: var(--transition);
        }

        .breadcrumb-wrap a:hover {
            color: var(--primary);
        }

        .breadcrumb-wrap .separator {
            margin: 0 6px;
            color: #B8C5CE;
            font-size: 12px;
        }

        .breadcrumb-wrap .current {
            color: var(--text-h);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 260px;
        }

        /* ===== 文章主体区域 ===== */
        .article-page-main {
            padding: 40px 0 80px;
        }

        .article-main {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 40px 44px;
            margin-bottom: 40px;
        }

        .article-main h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-h);
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: -0.2px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            color: var(--primary);
            font-size: 13px;
            opacity: 0.7;
        }

        .article-meta .category-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 20px;
        }

        /* ===== 正文阅读区 ===== */
        .article-body {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-body);
        }

        .article-body p {
            margin-bottom: 1.5em;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-h);
            margin: 1.6em 0 0.8em;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
        }

        .article-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-h);
            margin: 1.4em 0 0.6em;
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-h);
            margin: 1.2em 0 0.5em;
        }

        .article-body img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
            object-fit: cover;
            width: 100%;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5em;
            margin-bottom: 1.5em;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.5em;
        }

        .article-body blockquote {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-h);
            font-style: normal;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body code {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-body table th,
        .article-body table td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }

        .article-body table th {
            background: var(--primary-light);
            color: var(--text-h);
            font-weight: 600;
        }

        /* 无内容提示 */
        .article-empty {
            text-align: center;
            padding: 60px 24px;
            background: var(--primary-light);
            border-radius: var(--radius);
            margin: 24px 0;
        }

        .article-empty i {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
            opacity: 0.5;
        }

        .article-empty h3 {
            font-size: 20px;
            color: var(--text-h);
            margin-bottom: 12px;
        }

        .article-empty p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        /* ===== 文章底部标签与分享 ===== */
        .article-footer-box {
            border-top: 1px solid var(--border);
            margin-top: 32px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .article-tags .tag-item {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 20px;
            font-weight: 500;
            transition: var(--transition);
        }

        .article-tags .tag-item:hover {
            background: var(--primary);
            color: #fff;
        }

        .share-buttons {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .share-buttons span {
            font-size: 14px;
            color: var(--text-muted);
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
        }

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

        /* ===== 右侧栏 ===== */
        .article-sidebar {
            position: sticky;
            top: 92px;
        }

        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 24px;
            margin-bottom: 24px;
        }

        .sidebar-card .sidebar-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-h);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            position: relative;
        }

        .sidebar-card .sidebar-title::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 36px;
            height: 2px;
            background: var(--primary);
        }

        .sidebar-category-list {
            list-style: none;
        }

        .sidebar-category-list li {
            margin-bottom: 4px;
        }

        .sidebar-category-list a {
            display: block;
            padding: 10px 14px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-body);
            transition: var(--transition);
        }

        .sidebar-category-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
        }

        .sidebar-post-list {
            list-style: none;
        }

        .sidebar-post-list li {
            padding: 12px 0;
            border-bottom: 1px solid #EDF2F5;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 10px;
        }

        .sidebar-post-list li:last-child {
            border-bottom: none;
        }

        .sidebar-post-list .post-title {
            font-size: 14px;
            color: var(--text-h);
            font-weight: 500;
            line-height: 1.5;
            display: block;
            transition: var(--transition);
        }

        .sidebar-post-list .post-title:hover {
            color: var(--primary);
        }

        .sidebar-post-list .post-date {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            padding-top: 2px;
        }

        .sidebar-contact-card {
            background: var(--primary-light);
            border-radius: var(--radius);
            text-align: center;
            padding: 28px 24px;
            border: 1px solid var(--border);
        }

        .sidebar-contact-card i {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
        }

        .sidebar-contact-card h4 {
            font-size: 17px;
            color: var(--text-h);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .sidebar-contact-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            margin-top: 50px;
        }

        .related-section .related-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-h);
            margin-bottom: 28px;
            text-align: center;
            position: relative;
        }

        .related-section .related-title::after {
            content: "";
            display: block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }

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

        .related-card .related-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
            background: var(--primary-light);
        }

        .related-card .related-body {
            padding: 20px 22px 24px;
        }

        .related-card .related-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-h);
            line-height: 1.5;
            margin-bottom: 10px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            transition: var(--transition);
        }

        .related-card:hover .related-body h3 {
            color: var(--primary);
        }

        .related-card .related-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .related-card .related-body .related-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== CTA 区域 ===== */
        .article-cta {
            background: var(--bg-darker);
            border-radius: var(--radius);
            padding: 48px 40px;
            margin-top: 64px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .article-cta::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(232, 135, 30, 0.08);
            border-radius: 50%;
        }

        .article-cta h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .article-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-darker);
            color: #AAB4BD;
            margin-top: 60px;
        }

        .footer .container-custom {
            padding-top: 56px;
            padding-bottom: 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 48px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand span {
            color: var(--accent);
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 340px;
        }

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

        .footer-links {
            list-style: none;
        }

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

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

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-contact-item i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }

        .footer-bottom span {
            line-height: 1.6;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .nav-toggle {
                display: block;
            }

            .nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 12px 24px 20px;
                gap: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
                max-height: calc(100vh - 72px);
                overflow-y: auto;
            }

            .nav-menu.open {
                transform: translateY(0);
            }

            .nav-menu>li {
                width: 100%;
            }

            .nav-link-custom {
                width: 100%;
                height: 48px;
                padding: 0 12px;
                border-radius: 6px;
            }

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

            .nav-link-custom:hover {
                background: var(--primary-light);
            }

            .nav-link-custom.active {
                background: var(--primary-light);
                color: var(--primary);
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                width: 100%;
            }

            .nav-cta .btn-custom {
                width: 100%;
            }

            .article-sidebar {
                position: static;
                margin-top: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .article-main {
                padding: 28px 20px;
            }

            .article-main h1 {
                font-size: 26px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-footer-box {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-cta {
                padding: 36px 20px;
            }

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

        @media (max-width: 520px) {
            .article-main {
                padding: 20px 16px;
                border-radius: 8px;
            }

            .article-meta {
                gap: 8px;
                flex-wrap: wrap;
            }

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

            .breadcrumb-wrap .current {
                max-width: 160px;
            }

            .container-custom {
                padding: 0 16px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #1B5E8A;
  --primary-dark: #14486C;
  --primary-light: #3A7CA5;
  --accent: #E8871E;
  --accent-dark: #D6760B;
  --bg: #F5F7FA;
  --dark-blue: #12283A;
  --light-blue: #EAF1F6;
  --border: #DDE6EC;
  --title: #1F2A3A;
  --text: #45505E;
  --muted: #7E8C9A;
  --success: #2F9E62;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 2px 10px rgba(27, 94, 138, 0.08);
  --shadow-hover: 0 8px 30px rgba(27, 94, 138, 0.16);
  --transition: all 0.25s ease;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: var(--font-stack);
  background-color: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; }
input, select, textarea { font-family: inherit; }
.container-custom { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  height: 72px;
  display: flex;
  align-items: center;
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--title);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.2;
}
.brand-logo span { color: var(--primary); }
.brand-logo:hover { color: var(--title); }
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 28px;
}
.nav-link-custom {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  padding: 10px 0;
  position: relative;
  transition: var(--transition);
  display: inline-block;
}
.nav-link-custom:hover { color: var(--primary); }
.nav-link-custom.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link-custom.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}
.nav-link-custom:not(.active)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-link-custom:not(.active):hover::after { transform: scaleX(1); }
.nav-cta { margin-left: 4px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--primary);
  cursor: pointer;
  padding: 8px;
  line-height: 1;
}
.btn-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-custom:focus { outline: 2px solid rgba(27, 94, 138, 0.35); outline-offset: 2px; }
.btn-primary-custom { background: var(--primary); color: #fff; }
.btn-primary-custom:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(27, 94, 138, 0.2); }
.btn-accent-custom { background: var(--accent); color: #fff; }
.btn-accent-custom:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(232, 135, 30, 0.25); }
.btn-lg-custom { height: 52px; padding: 0 40px; font-size: 16px; }
.btn-block { width: 100%; }
.page-banner {
  background: linear-gradient(120deg, #EAF1F6 0%, #F5F7FA 65%);
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -40px;
  width: 340px;
  height: 340px;
  background: rgba(27, 94, 138, 0.06);
  border-radius: 60% 40% 30% 50% / 50% 40% 50% 60%;
  z-index: 0;
}
.page-banner::after {
  content: '';
  position: absolute;
  left: 55%;
  bottom: -80px;
  width: 200px;
  height: 200px;
  background: rgba(232, 135, 30, 0.05);
  border-radius: 40% 60% 50% 50% / 60% 40% 60% 50%;
  z-index: 0;
}
.page-banner .container-custom { position: relative; z-index: 1; }
.breadcrumb-custom {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 28px;
  letter-spacing: 0.3px;
}
.breadcrumb-custom a { color: var(--primary); }
.breadcrumb-custom i { font-size: 12px; margin: 0 6px; color: #B0BCC8; }
.page-banner h1 {
  font-size: 44px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 16px;
  line-height: 1.3;
  letter-spacing: 0.5px;
}
.page-banner p {
  font-size: 17px;
  color: var(--text);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 0;
}
.category-main { padding: 64px 0 80px; }
.content-two-col {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 44px;
  align-items: start;
}
.info-module {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 32px;
  display: flex;
  gap: 0;
  align-items: stretch;
  transition: var(--transition);
}
.info-module:hover { box-shadow: var(--shadow-hover); }
.module-img-wrap { flex: 0 0 240px; min-height: 220px; overflow: hidden; }
.module-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.info-module:hover .module-img-wrap img { transform: scale(1.03); }
.module-body { padding: 28px 28px 24px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.module-tag {
  display: inline-block;
  background: var(--light-blue);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 14px;
  align-self: flex-start;
  letter-spacing: 0.3px;
}
.module-body h2 { font-size: 22px; font-weight: 600; color: var(--title); margin-bottom: 12px; line-height: 1.4; }
.module-body p { font-size: 15px; line-height: 1.75; color: var(--text); margin-bottom: 16px; }
.module-list { list-style: none; padding: 0; margin: 0 0 16px; }
.module-list li { font-size: 14px; color: var(--text); padding: 7px 0; border-bottom: 1px solid #E5EDF2; display: flex; align-items: center; gap: 8px; }
.module-list li:last-child { border-bottom: none; }
.module-list li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 12px;
  color: var(--accent);
}
.module-card-list { display: block; }
.module-header { padding: 28px 28px 0; }
.topic-list { padding: 16px 28px 24px; }
.topic-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid #E5EDF2;
  transition: var(--transition);
}
.topic-item:last-child { border-bottom: none; }
.topic-item:hover .topic-title { color: var(--primary); }
.topic-item:hover .topic-time { color: var(--accent); }
.topic-badge {
  flex: 0 0 auto;
  background: var(--light-blue);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 4px;
  white-space: nowrap;
}
.topic-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--title);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: var(--transition);
}
.topic-time { flex: 0 0 auto; font-size: 13px; color: var(--muted); transition: var(--transition); }
.module-reverse { flex-direction: row-reverse; }
.sidebar { position: sticky; top: 96px; }
.contact-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.contact-card h3 { font-size: 20px; font-weight: 600; color: var(--title); margin-bottom: 8px; }
.contact-card > p { font-size: 14px; color: var(--muted); margin-bottom: 22px; line-height: 1.65; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #45505E;
  margin-bottom: 6px;
  letter-spacing: 0.2px;
}
.form-control-custom {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 14px;
  font-size: 14px;
  background: #fff;
  color: var(--title);
  transition: var(--transition);
}
.form-control-custom::placeholder { color: #A9B4BF; }
.form-control-custom:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 94, 138, 0.12);
  outline: none;
}
select.form-control-custom { appearance: auto; color: var(--text); }
.faq-section { padding: 80px 0; background: var(--bg); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .section-tag {
  display: inline-block;
  background: var(--light-blue);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.section-head h2 { font-size: 32px; font-weight: 600; color: var(--title); margin-bottom: 10px; line-height: 1.3; }
.section-head p { font-size: 16px; color: var(--muted); }
.faq-grid { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-hover); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 500;
  color: var(--title);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--light-blue);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer p { padding: 0 24px 20px; font-size: 14px; line-height: 1.75; color: var(--text); }
.cta-section { padding: 0; }
.cta-inner {
  background: var(--dark-blue);
  border-radius: 16px;
  padding: 56px 48px;
  text-align: center;
  max-width: 900px;
  margin: 80px auto;
  position: relative;
  overflow: hidden;
}
.cta-inner::before {
  content: '';
  position: absolute;
  right: -40px;
  top: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(232, 135, 30, 0.12);
}
.cta-inner::after {
  content: '';
  position: absolute;
  left: -30px;
  bottom: -60px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(27, 94, 138, 0.25);
}
.cta-inner > * { position: relative; z-index: 1; }
.cta-inner h2 { font-size: 28px; font-weight: 600; color: #fff; margin-bottom: 14px; line-height: 1.4; }
.cta-inner p { font-size: 16px; color: rgba(255, 255, 255, 0.8); margin-bottom: 28px; line-height: 1.7; }
.cta-inner .btn-custom { margin: 0 auto; }
.footer { background: #12283A; color: #9AA8B5; font-size: 14px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding: 56px 0 40px;
}
.footer-brand { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 16px; line-height: 1.2; }
.footer-brand span { color: var(--accent); }
.footer-desc { line-height: 1.75; color: #9AA8B5; max-width: 360px; margin-bottom: 0; }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #9AA8B5; text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact-item { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.footer-contact-item i { color: var(--accent); width: 18px; text-align: center; flex: 0 0 auto; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}
.footer-bottom .container-custom {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 13px;
  color: #7E8C9A;
}
@media (max-width: 1199.98px) {
  .content-two-col { grid-template-columns: 1fr 320px; gap: 32px; }
  .module-img-wrap { flex-basis: 220px; }
}
@media (max-width: 991.98px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
    display: none;
    border-top: 1px solid var(--border);
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-link-custom { width: 100%; padding: 12px 0; font-size: 16px; }
  .nav-link-custom.active::after { display: none; }
  .nav-link-custom:not(.active)::after { display: none; }
  .nav-cta { width: 100%; margin-top: 10px; }
  .nav-cta .btn-custom { width: 100%; }
  .content-two-col { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .page-banner { padding: 56px 0 48px; }
  .page-banner h1 { font-size: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767.98px) {
  .container-custom { padding: 0 16px; }
  .info-module, .module-reverse { flex-direction: column; }
  .module-img-wrap { flex: 0 0 auto; min-height: 0; max-height: 200px; }
  .module-img-wrap img { height: 200px; }
  .module-body { padding: 22px; }
  .module-header { padding: 22px 22px 0; }
  .topic-list { padding: 14px 22px 20px; }
  .topic-item { flex-wrap: wrap; gap: 8px; }
  .topic-title { flex: 1 1 calc(100% - 80px); white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .topic-time { flex: 0 0 auto; }
  .page-banner { padding: 40px 0 36px; }
  .page-banner h1 { font-size: 28px; }
  .page-banner p { font-size: 15px; }
  .category-main { padding: 44px 0 56px; }
  .faq-section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .cta-inner { margin: 56px auto; padding: 40px 24px; border-radius: 12px; }
  .cta-inner h2 { font-size: 22px; }
  .cta-inner p { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 40px 0 32px; }
  .footer-brand { font-size: 20px; }
}
@media (max-width: 575.98px) {
  .contact-card { padding: 20px; }
  .faq-question { padding: 16px 18px; font-size: 15px; }
  .faq-answer p { padding: 0 18px 18px; }
  .btn-lg-custom { height: 48px; padding: 0 28px; font-size: 15px; }
}