/* roulang page: index */
:root {
  --primary: #0B1D2A;
  --secondary: #2DE1A6;
  --accent: #C7A45B;
  --bg: #F5F7F6;
  --dark: #101F2A;
  --card-bg: #ffffff;
  --text: #223238;
  --text-light: #5A6A73;
  --border: rgba(11, 29, 42, 0.08);
  --radius-card: 16px;
  --radius-btn: 24px;
  --radius-nav: 50px;
  --shadow-sm: 0 4px 20px rgba(11, 29, 42, 0.04);
  --shadow-md: 0 12px 32px rgba(11, 29, 42, 0.1);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: #223238; text-decoration: none; transition: color 0.2s ease; }
a:hover { color: #1d9c74; }
.btn { border-radius: var(--radius-btn); padding: 10px 28px; font-weight: 500; border: 1px solid transparent; transition: all 0.2s ease; }
.btn-primary {
  background: var(--secondary);
  color: var(--primary);
  border-color: var(--secondary);
}
.btn-primary:hover, .btn-primary:focus {
  background: #5AF0BE;
  border-color: #5AF0BE;
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45, 225, 166, 0.25);
}
.btn-outline-primary {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline-primary:hover, .btn-outline-primary:focus {
  background: rgba(11, 29, 42, 0.05);
  border-color: var(--secondary);
  color: var(--primary);
  transform: translateY(-1px);
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--secondary);
  color: #fff;
}
.container { max-width: 1320px; }
section.section { padding: 80px 0; }
.section-head {
  margin-bottom: 48px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
  margin: 0;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--secondary);
}
.section-head .section-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  white-space: nowrap;
}
.section-head .section-link:hover { color: var(--secondary); }

/* ===== 导航 ===== */
.navbar-custom {
  position: sticky;
  top: 12px;
  z-index: 1050;
  padding: 0;
  background: transparent;
}
.navbar-custom .navbar-inner {
  background: rgba(11, 29, 42, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-nav);
  padding: 8px 20px;
  box-shadow: 0 8px 30px rgba(11, 29, 42, 0.3);
}
.navbar-custom .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
}
.navbar-custom .navbar-brand .brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(45, 225, 166, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  flex-shrink: 0;
}
.navbar-custom .navbar-brand:hover { color: #fff; }
.navbar-custom .nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  font-weight: 400;
  padding: 8px 12px;
  border-radius: 50px;
  position: relative;
  transition: color 0.2s ease;
}
.navbar-custom .nav-link:hover { color: var(--secondary); }
.navbar-custom .nav-link.active {
  color: var(--secondary);
  font-weight: 500;
}
.navbar-custom .nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--secondary);
}
.navbar-custom .btn-login {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  border-radius: 50px;
  padding: 6px 20px;
  font-size: 14px;
  transition: all 0.2s ease;
}
.navbar-custom .btn-login:hover {
  background: var(--secondary);
  border-color: var(--secondary);
  color: var(--primary);
}
.navbar-toggler-custom {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  padding: 8px 10px;
}
.navbar-toggler-custom .toggler-icon {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  margin: 4px 0;
  border-radius: 2px;
}
.navbar-toggler-custom:focus { box-shadow: none; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 80vh;
  background: var(--primary);
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: -72px;
  padding-top: 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.3;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(45, 225, 166, 0.12) 0%, transparent 60%);
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  padding: 60px 0;
}
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 16px;
  max-width: 720px;
}
.hero h1 .highlight {
  color: var(--secondary);
}
.hero-sub {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-chips {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-chips .chip {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.04);
  transition: all 0.2s ease;
}
.hero-chips .chip:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}
.scroll-down {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.4);
  font-size: 24px;
  animation: floatDown 2s infinite;
  z-index: 2;
  line-height: 1;
}
@keyframes floatDown {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ===== 服务卡片 ===== */
.services-section { background: var(--bg); }
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid transparent;
  border-radius: var(--radius-card);
  padding: 28px 24px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  border-left-color: var(--secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.service-card .service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(45, 225, 166, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  margin-bottom: 20px;
}
.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 16px;
}
.service-card .service-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}
.service-card .service-link:hover {
  color: var(--secondary);
}
.service-card .service-link .arrow { display: inline-block; transition: transform 0.2s ease; }
.service-card .service-link:hover .arrow { transform: translateX(-4px); }

/* ===== 数据指标 ===== */
.stats-section {
  background: var(--dark);
  padding: 56px 0;
}
.stats-section .stat-item {
  text-align: center;
  padding: 16px;
}
.stats-section .stat-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--secondary);
  font-feature-settings: "tnum";
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-bottom: 8px;
}
.stats-section .stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1px;
}

/* ===== 资讯列表 ===== */
.news-section { background: var(--bg); }
.news-list {
  background: #fff;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.news-row {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 28px;
  border-bottom: 1px solid rgba(11, 29, 42, 0.05);
  transition: background 0.2s ease;
  flex-wrap: wrap;
}
.news-row:last-child { border-bottom: none; }
.news-row:hover { background: rgba(45, 225, 166, 0.03); }
.news-date {
  color: var(--accent);
  font-size: 14px;
  min-width: 90px;
  font-feature-settings: "tnum";
  flex-shrink: 0;
}
.news-title {
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  flex: 2;
  min-width: 180px;
}
.news-title:hover { color: var(--secondary); }
.news-summary {
  color: var(--text-light);
  font-size: 14px;
  flex: 3;
  min-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-cat {
  background: rgba(45, 225, 166, 0.1);
  color: #1d9c74;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 50px;
  flex-shrink: 0;
}
.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
}
.news-empty .empty-icon {
  font-size: 40px;
  color: rgba(45, 225, 166, 0.5);
  margin-bottom: 12px;
}

/* ===== 预约顾问 ===== */
.consult-section { background: var(--bg); }
.consult-card {
  background: #fff;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.consult-card .consult-body {
  padding: 40px 48px;
}
.consult-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.consult-card p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 24px;
}
.consult-card .consult-image {
  height: 100%;
  min-height: 260px;
  background-image: url('/assets/images/coverpic/cover-1.png');
  background-size: cover;
  background-position: center;
}

/* ===== FAQ ===== */
.faq-section { background: #fff; }
.custom-accordion .accordion-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  background: #fff;
}
.custom-accordion .accordion-item:last-child { margin-bottom: 0; }
.custom-accordion .accordion-button {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  background: #fff;
  padding: 18px 24px;
  box-shadow: none;
  border-radius: 12px;
}
.custom-accordion .accordion-button:not(.collapsed) {
  background: rgba(45, 225, 166, 0.04);
  color: var(--primary);
  box-shadow: inset 4px 0 0 var(--secondary);
}
.custom-accordion .accordion-button:focus {
  box-shadow: none;
}
.custom-accordion .accordion-body {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
  padding: 4px 24px 20px;
  background: #fff;
}

/* ===== 最终CTA ===== */
.cta-section {
  background: var(--primary);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(45, 225, 166, 0.08);
}
.cta-section h3 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}
.cta-section .btn-primary { min-width: 160px; }

/* ===== 隐私说明 ===== */
.privacy-note {
  background: #EDF0EF;
  padding: 16px 0;
  text-align: center;
}
.privacy-note p {
  font-size: 12px;
  color: var(--text-light);
  margin: 0;
}
.privacy-note a {
  color: var(--text-light);
  text-decoration: underline;
}
.privacy-note a:hover { color: var(--secondary); }

/* ===== 页脚 ===== */
.footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 24px;
}
.footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}
.footer .footer-brand .brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(45, 225, 166, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
}
.footer .footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  max-width: 300px;
}
.footer .footer-links h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.footer .footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer .footer-links li { margin-bottom: 10px; }
.footer .footer-links a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}
.footer .footer-links a:hover { color: var(--secondary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  margin-top: 32px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.35); }
.footer-bottom a:hover { color: var(--secondary); }

/* ===== Modal 表单 ===== */
.modal-custom .modal-content {
  border-radius: 20px;
  border: none;
  box-shadow: 0 20px 60px rgba(11, 29, 42, 0.25);
}
.modal-custom .modal-header {
  border-bottom: 1px solid var(--border);
  padding: 20px 28px;
}
.modal-custom .modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}
.modal-custom .modal-body { padding: 28px; }
.modal-custom .modal-footer { border-top: 1px solid var(--border); }
.modal-custom .form-label {
  font-size: 13px;
  color: #334;
  margin-bottom: 6px;
  font-weight: 500;
}
.modal-custom .form-control {
  background: #f9fafb;
  border: 1px solid #d1d7db;
  border-radius: 12px;
  padding: 10px 14px;
  height: 48px;
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.modal-custom .form-control:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(45, 225, 166, 0.2);
}
.modal-custom textarea.form-control { height: auto; line-height: 1.6; }
.modal-custom .form-success {
  text-align: center;
  padding: 40px 20px;
}
.modal-custom .form-success .success-icon {
  font-size: 40px;
  color: var(--secondary);
  margin-bottom: 16px;
}
.modal-custom .form-success p {
  color: var(--text);
  font-size: 15px;
}

/* ===== 响应式 ===== */
@media (max-width: 1399.98px) {
  .container { max-width: 1140px; }
}
@media (max-width: 1199.98px) {
  .navbar-custom .navbar-inner { padding: 8px 16px; }
  .navbar-custom .nav-link { font-size: 14px; padding: 6px 10px; }
  .service-card { padding: 20px; }
}
@media (max-width: 991.98px) {
  .navbar-custom .navbar-inner { border-radius: 20px; }
  .navbar-custom .navbar-collapse {
    background: rgba(11, 29, 42, 0.95);
    border-radius: 16px;
    padding: 12px;
    margin-top: 8px;
  }
  .navbar-custom .nav-link { padding: 10px 12px; }
  .navbar-custom .nav-link.active::after { left: 12px; right: auto; width: 30px; }
  .navbar-custom .btn-login { margin-top: 8px; display: inline-block; }
  .hero h1 { font-size: 40px; }
  .hero { margin-top: -64px; }
}
@media (max-width: 767.98px) {
  section.section { padding: 48px 0; }
  .section-head h2 { font-size: 24px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .hero-cta .btn { width: 100%; display: block; margin-bottom: 8px; }
  .hero-chips { gap: 8px; }
  .hero-chips .chip { font-size: 12px; padding: 4px 12px; }
  .stats-section .stat-num { font-size: 32px; }
  .news-row { padding: 16px; gap: 12px; }
  .news-date { min-width: auto; font-size: 13px; }
  .news-summary { display: none; }
  .news-title { font-size: 15px; flex: 1; min-width: 0; }
  .consult-card .consult-body { padding: 28px 20px; }
  .consult-card .consult-image { min-height: 180px; }
  .cta-section h3 { font-size: 22px; }
  .footer .footer-links { margin-top: 24px; }
  .faq-section .accordion-button { font-size: 14px; padding: 14px 16px; }
  .custom-accordion .accordion-body { padding: 0 16px 16px; }
  .navbar-custom { top: 4px; }
}

/* roulang page: category1 */
:root {
  --primary: #0B1D2A;
  --accent: #2DE1A6;
  --accent-light: #5AF0BE;
  --secondary: #C7A45B;
  --bg: #F5F7F6;
  --dark-bg: #101F2A;
  --card-bg: #ffffff;
  --text: #1c2b36;
  --text-muted: #5A6A73;
  --border: rgba(11,29,42,0.08);
  --shadow-sm: 0 4px 20px rgba(11,29,42,0.04);
  --shadow-lg: 0 12px 32px rgba(11,29,42,0.10);
  --radius: 16px;
  --radius-btn: 24px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: #223; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
.container { max-width: 1320px; padding-left: 24px; padding-right: 24px; }
@media (min-width: 1400px) { .container { max-width: 1320px; } }
@media (max-width: 1399px) and (min-width: 1200px) { .container { max-width: 1140px; } }

/* ===================== Navbar ===================== */
.navbar-custom {
  position: sticky;
  top: 12px;
  z-index: 1050;
  background: rgba(11,29,42,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 50px;
  margin: 12px auto 0;
  max-width: 1320px;
  padding: 0;
  box-shadow: 0 8px 30px rgba(0,0,0,0.18);
}
.navbar-custom .container { padding-left: 12px; padding-right: 12px; }
.navbar-inner { padding: 10px 16px; }
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.navbar-brand:hover, .navbar-brand:focus { color: var(--accent); }
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: rgba(45,225,166,0.15);
  border-radius: 50%;
  color: var(--accent);
  flex-shrink: 0;
}
.navbar-toggler-custom {
  border: none;
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: transparent;
}
.toggler-icon {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 4px;
  transition: transform .25s ease, opacity .25s ease;
}
.navbar-toggler-custom[aria-expanded="true"] .toggler-icon:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar-toggler-custom[aria-expanded="true"] .toggler-icon:nth-child(2) { opacity: 0; }
.navbar-toggler-custom[aria-expanded="true"] .toggler-icon:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.navbar-custom .navbar-nav { gap: 2px; }
.navbar-custom .nav-link {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 50px;
  position: relative;
  transition: color .25s ease, background .25s ease;
}
.navbar-custom .nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.navbar-custom .nav-link.active { color: var(--accent); }
.navbar-custom .nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.btn-login {
  border: 1px solid rgba(255,255,255,0.5);
  color: #fff;
  border-radius: 50px;
  padding: 8px 24px;
  font-size: 14px;
  font-weight: 600;
  transition: all .25s ease;
  background: transparent;
}
.btn-login:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary);
  transform: translateY(-1px);
}
@media (max-width: 991.98px) {
  .navbar-custom {
    border-radius: 20px;
    top: 8px;
    margin: 8px 16px 0;
  }
  .navbar-custom .container { padding-left: 8px; padding-right: 8px; }
  .navbar-collapse {
    background: rgba(11,29,42,0.98);
    border-radius: 20px;
    padding: 12px 8px;
    margin-top: 10px;
  }
  .navbar-custom .nav-link { padding: 10px 16px; }
  .btn-login { margin-top: 8px; width: 100%; text-align: center !important; }
}

/* ===================== Buttons ===================== */
.btn-main {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 32px;
  border-radius: var(--radius-btn);
  border: none;
  transition: all .25s ease;
  box-shadow: 0 4px 16px rgba(45,225,166,0.25);
}
.btn-main:hover {
  background: var(--accent-light);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(45,225,166,0.3);
}
.btn-outline-light-custom {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.6);
  color: #fff;
  border-radius: var(--radius-btn);
  padding: 12px 32px;
  font-weight: 600;
  font-size: 15px;
  transition: all .25s ease;
  background: transparent;
}
.btn-outline-light-custom:hover { background: rgba(255,255,255,0.12); border-color: var(--accent); color: var(--accent); }

/* ===================== Hero ===================== */
.cat-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(11,29,42,0.92) 0%, rgba(16,31,42,0.88) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 110px 0 70px;
  margin-top: -80px;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.cat-hero .breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  margin-bottom: 24px;
}
.cat-hero .breadcrumb-custom a { color: rgba(255,255,255,0.55); }
.cat-hero .breadcrumb-custom a:hover { color: var(--accent); }
.cat-hero .breadcrumb-custom .sep { opacity: 0.5; }
.cat-hero h1 {
  color: #fff;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}
.cat-hero .hero-sub {
  color: rgba(255,255,255,0.75);
  font-size: 18px;
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.cat-hero .hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.cat-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  color: rgba(255,255,255,0.85);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 500;
  transition: border-color .25s ease;
}
.cat-hero .hero-badge:hover { border-color: var(--accent); }
@media (max-width: 768px) {
  .cat-hero { padding: 100px 0 50px; }
  .cat-hero h1 { font-size: 32px; }
}

/* ===================== Feature / Selling points ===================== */
.section-feature {
  padding: 80px 0 0;
}
.section-feature .feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  height: 100%;
  transition: transform .3s ease, box-shadow .3s ease;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.section-feature .feature-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform .3s ease;
}
.section-feature .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.section-feature .feature-card:hover::before { transform: scaleY(1); }
.section-feature .feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(45,225,166,0.1);
  border-radius: 14px;
  color: var(--accent);
  margin-bottom: 20px;
}
.section-feature .feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.section-feature .feature-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 0;
}

/* ===================== Guide Grid ===================== */
.section-guide {
  padding: 80px 0;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}
.section-sub {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 48px;
  max-width: 560px;
}
.guide-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px 26px;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
  box-shadow: var(--shadow-sm);
}
.guide-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform .3s ease;
}
.guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.guide-card:hover::before { transform: scaleY(1); }
.guide-card .guide-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--secondary);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  display: block;
}
.guide-card .guide-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(45,225,166,0.1);
  border-radius: 12px;
  color: var(--accent);
  margin-bottom: 18px;
}
.guide-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
  line-height: 1.5;
}
.guide-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  flex-grow: 1;
  margin-bottom: 20px;
}
.guide-card .guide-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: color .25s ease;
}
.guide-card .guide-link i { transition: transform .25s ease; }
.guide-card .guide-link:hover { color: var(--accent); }
.guide-card .guide-link:hover i { transform: translateX(4px); }

/* ===================== Process ===================== */
.section-process {
  background: var(--dark-bg);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.section-process::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(rgba(45,225,166,0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.section-process .section-title { color: #fff; }
.section-process .section-sub { color: rgba(255,255,255,0.55); }
.process-item {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}
.process-item .process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(45,225,166,0.15);
  border: 1px solid rgba(45,225,166,0.3);
  color: var(--accent);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 18px;
}
.process-item h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.process-item p {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 0;
}
.process-item::after {
  content: "›";
  position: absolute;
  right: -10px;
  top: 35px;
  color: rgba(45,225,166,0.4);
  font-size: 28px;
  transform: rotate(90deg);
}
.process-item:last-child::after { display: none; }
@media (max-width: 991.98px) {
  .process-item::after { display: none; }
}

/* ===================== Scenario ===================== */
.section-scenario { padding: 80px 0; }
.scenario-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  height: 100%;
  transition: box-shadow .3s ease, transform .3s ease;
}
.scenario-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.scenario-card .scenario-tag {
  display: inline-block;
  background: rgba(45,225,166,0.12);
  color: #0e9d70;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 16px;
}
.scenario-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}
.scenario-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 16px;
}
.scenario-card ul { padding: 0; }
.scenario-card ul li {
  font-size: 14px;
  color: var(--text-muted);
  padding: 4px 0;
  position: relative;
  padding-left: 18px;
}
.scenario-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ===================== FAQ ===================== */
.section-faq { padding: 80px 0; background: #f0f3f2; }
.faq-wrap .accordion-item {
  border: none;
  margin-bottom: 12px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(11,29,42,0.04);
  overflow: hidden;
}
.faq-wrap .accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 18px 24px;
  background: transparent;
  border: none;
  box-shadow: none;
  border-left: 4px solid transparent;
  transition: border-color .25s ease;
}
.faq-wrap .accordion-button:not(.collapsed) {
  color: var(--text);
  background: rgba(45,225,166,0.05);
  border-left-color: var(--accent);
}
.faq-wrap .accordion-button:focus { box-shadow: none; }
.faq-wrap .accordion-body {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  padding: 0 24px 20px;
}
.faq-wrap .accordion-button::after {
  background-size: 14px;
  filter: grayscale(0.4);
}

/* ===================== CTA ===================== */
.section-cta {
  background: linear-gradient(135deg, rgba(11,29,42,0.95), rgba(16,31,42,0.92)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 64px 0;
  text-align: center;
}
.section-cta h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 14px;
}
.section-cta p {
  color: rgba(255,255,255,0.65);
  font-size: 16px;
  margin-bottom: 30px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================== Section header ===================== */
.sec-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; }
.sec-header .sec-head-left { max-width: 70%; }
@media (max-width: 768px) {
  .sec-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .sec-header .sec-head-left { max-width: 100%; }
}

/* ===================== Footer ===================== */
.footer {
  background: var(--primary);
  padding: 60px 0 24px;
  color: rgba(255,255,255,0.6);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
  max-width: 360px;
  margin-bottom: 24px;
}
.footer h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links ul { padding: 0; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color .25s ease;
}
.footer-links ul li a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  margin: 0;
}

/* ===================== Responsive ===================== */
@media (max-width: 1199.98px) {
  .navbar-custom { max-width: 96%; }
}
@media (max-width: 991.98px) {
  .section-guide .guide-card { padding: 24px 20px; }
}
@media (max-width: 767.98px) {
  h1, .cat-hero h1 { font-size: 32px; }
  .section-title { font-size: 24px; }
  .section-feature, .section-guide, .section-process, .section-scenario, .section-faq { padding: 56px 0; }
  .category-hero-cta .btn-main, .category-hero-cta .btn-outline-light-custom { width: 100%; display: block; text-align: center; margin-bottom: 10px; }
  .hero-badges { flex-wrap: wrap; }
  .process-item { margin-bottom: 30px; }
  .footer { padding-top: 40px; }
}
@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .navbar-custom { margin-left: 10px; margin-right: 10px; }
  .btn-main, .btn-outline-light-custom { padding: 10px 20px; font-size: 14px; }
}

/* roulang page: article */
:root{
  --ink:#0B1D2A;
  --deep:#101F2A;
  --mint:#2DE1A6;
  --mint-bright:#5AF0BE;
  --gold:#C7A45B;
  --bg-soft:#F5F7F6;
  --card:#FFFFFF;
  --text-main:#223344;
  --text-muted:#5A6A73;
  --line:rgba(11,29,42,0.08);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:50px;
  --shadow-card:0 4px 20px rgba(11,29,42,0.04);
  --shadow-hover:0 12px 32px rgba(11,29,42,0.1);
  --font-base:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --space-section:80px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-base);
  background:var(--bg-soft);
  color:var(--text-main);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--text-main);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--mint);}
ul,ol{list-style:none;}
button,input,textarea{font-family:inherit;}

.container{
  padding-left:40px;
  padding-right:40px;
}

.btn{
  border-radius:50px;
  padding:10px 28px;
  font-weight:600;
  transition:all .25s ease;
}
.btn-primary{
  background:var(--mint);
  border-color:var(--mint);
  color:var(--ink);
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--mint-bright);
  border-color:var(--mint-bright);
  color:var(--ink);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(45,225,166,.25);
}
.btn-outline-primary{
  border-color:var(--ink);
  color:var(--ink);
}
.btn-outline-primary:hover{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(11,29,42,.15);
}
.btn-outline-light{
  border:1px solid rgba(255,255,255,.6);
  color:rgba(255,255,255,.9);
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.1);
  border-color:var(--mint);
  color:var(--mint);
}

.navbar-custom{
  position:sticky;
  top:12px;
  z-index:1050;
  padding:0;
}
.navbar-custom .navbar-inner{
  background:rgba(11,29,42,.75);
  border:1px solid rgba(255,255,255,.1);
  border-radius:50px;
  padding:10px 24px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 30px rgba(11,29,42,.15);
}
.navbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:18px;
  letter-spacing:.5px;
}
.navbar-brand .brand-icon{
  width:34px;
  height:34px;
  border-radius:50%;
  background:rgba(45,225,166,.12);
  color:var(--mint);
  display:flex;
  align-items:center;
  justify-content:center;
}
.navbar-brand:hover{color:var(--mint);}
.navbar-custom .nav-link{
  color:rgba(255,255,255,.75);
  font-size:15px;
  padding:8px 16px;
  border-radius:50px;
  position:relative;
  transition:all .2s;
}
.navbar-custom .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.navbar-custom .nav-link.active{color:#fff;font-weight:600;}
.navbar-custom .nav-link.active::after{
  content:'';
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:2px;
  width:20px;
  height:2px;
  background:var(--mint);
  border-radius:2px;
}
.btn-login{
  display:inline-block;
  padding:7px 22px;
  border:1px solid rgba(255,255,255,.6);
  border-radius:50px;
  color:rgba(255,255,255,.9);
  font-size:14px;
  font-weight:500;
  transition:all .2s;
}
.btn-login:hover{
  background:var(--mint);
  border-color:var(--mint);
  color:var(--ink);
}
.navbar-toggler-custom{
  border:none;
  padding:8px;
  display:flex;
  flex-direction:column;
  gap:5px;
  background:transparent;
}
.navbar-toggler-custom:focus{box-shadow:none;}
.toggler-icon{
  width:22px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:all .2s;
}

.article-hero{
  position:relative;
  background:linear-gradient(120deg,rgba(11,29,42,.94),rgba(16,31,42,.88)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#fff;
  padding:72px 0 56px;
  margin-bottom:0;
}
.breadcrumb-nav{
  font-size:14px;
  color:rgba(255,255,255,.65);
  margin-bottom:18px;
}
.breadcrumb-nav a{color:rgba(255,255,255,.8);}
.breadcrumb-nav a:hover{color:var(--mint);}
.breadcrumb-nav .sep{margin:0 8px;color:rgba(255,255,255,.4);}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:16px;
  font-size:14px;
  color:rgba(255,255,255,.75);
}
.article-meta .meta-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.article-meta .meta-item::before{
  content:'';
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--gold);
  flex-shrink:0;
}
.article-hero h1{
  font-size:32px;
  font-weight:800;
  line-height:1.4;
  max-width:900px;
  margin-bottom:0;
}

.article-main{padding:64px 0 48px;}
.article-content{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:40px;
  font-size:17px;
  line-height:2.0;
}
.article-content p{margin-bottom:1.5em;}
.article-content h2{
  font-size:24px;
  font-weight:700;
  margin:1.8em 0 .8em;
  line-height:1.4;
  color:var(--ink);
}
.article-content h3{
  font-size:20px;
  font-weight:700;
  margin:1.6em 0 .6em;
  color:var(--ink);
}
.article-content img{
  border-radius:8px;
  margin:1.5em 0;
  max-width:100%;
}
.article-content blockquote{
  border-left:3px solid var(--ink);
  background:#f1f4f3;
  padding:16px 20px;
  border-radius:0 8px 8px 0;
  font-style:italic;
  color:var(--text-muted);
  margin:1.5em 0;
}
.article-content pre{
  background:var(--deep);
  color:#e6f5ff;
  padding:20px;
  border-radius:12px;
  overflow-x:auto;
  line-height:1.6;
  margin:1.5em 0;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  background:#eef2f1;
  padding:2px 6px;
  border-radius:4px;
  font-size:.92em;
}
.article-content pre code{background:none;padding:0;color:inherit;}
.article-content ul,.article-content ol{margin:1.2em 0;padding-left:1.4em;}
.article-content ul li{list-style:disc;margin-bottom:.5em;}
.article-content ol li{list-style:decimal;margin-bottom:.5em;}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
}
.article-content th{background:#f1f4f3;font-weight:600;}

.article-sidebar{
  position:sticky;
  top:100px;
}
.sidebar-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:24px;
  box-shadow:var(--shadow-card);
  margin-bottom:24px;
}
.sidebar-card h4{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.sidebar-card ul li{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.8;
  padding:6px 0;
  border-bottom:1px dashed rgba(11,29,42,.06);
  display:flex;
  justify-content:space-between;
  gap:10px;
}
.sidebar-card ul li:last-child{border-bottom:none;}
.sidebar-card ul li span{color:var(--text-main);font-weight:500;text-align:right;}
.toc-list li{
  padding:4px 0;
  display:block !important;
  justify-content:flex-start !important;
  border-bottom:none !important;
}
.toc-list a{
  font-size:14px;
  color:var(--text-main);
  display:block;
  padding:2px 0;
  border-left:2px solid var(--line);
  padding-left:10px;
  transition:all .2s;
}
.toc-list a:hover{
  color:var(--mint);
  border-left-color:var(--mint);
}
.toc-list .toc-sub{
  padding-left:24px;
  font-size:13px;
  color:var(--text-muted);
}
.share-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.share-link{
  display:inline-block;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:50px;
  font-size:14px;
  color:var(--text-main);
  transition:all .2s;
}
.share-link:hover{border-color:var(--mint);color:var(--mint);}
.sidebar-card .btn{width:100%;}

.post-nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.post-link{
  font-size:15px;
  font-weight:500;
  color:var(--text-main);
  padding:8px 20px;
  border:1px solid var(--line);
  border-radius:50px;
  transition:all .2s;
}
.post-link:hover{
  border-color:var(--mint);
  color:var(--mint);
}

.related-section{padding:64px 0 40px;}
.section-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:32px;
}
.section-head h2{
  font-size:28px;
  font-weight:800;
  color:var(--ink);
  margin:0;
}
.view-all{
  font-size:14px;
  color:var(--text-muted);
}
.view-all:hover{color:var(--mint);}
.related-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  height:100%;
  transition:box-shadow .25s,transform .25s;
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.related-card .thumb-link{
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
}
.related-card .thumb-link img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.related-card .card-body{padding:20px;}
.related-card .badge{
  display:inline-block;
  background:rgba(45,225,166,.12);
  color:#0b7a56;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:50px;
  margin-bottom:10px;
}
.related-card h3{
  font-size:18px;
  font-weight:700;
  line-height:1.5;
  margin-bottom:8px;
}
.related-card h3 a{color:var(--ink);}
.related-card h3 a:hover{color:var(--mint);}
.related-card .date{
  font-size:13px;
  color:var(--gold);
}
.related-card .summary{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
  margin-top:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.back-section{
  padding:32px 0 80px;
  text-align:center;
}

.not-found-page{
  min-height:60vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:80px 0;
}
.nf-icon{
  width:80px;
  height:80px;
  border-radius:50%;
  background:#eef2f1;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 24px;
  color:var(--gold);
  font-size:40px;
}
.not-found-page h1{
  font-size:32px;
  color:var(--ink);
  margin-bottom:16px;
  font-weight:800;
}
.not-found-page p{
  color:var(--text-muted);
  margin-bottom:24px;
}

.footer{
  background:var(--ink);
  color:rgba(255,255,255,.7);
  padding:64px 0 24px;
  margin-top:80px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:20px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-brand .brand-icon{
  width:34px;
  height:34px;
  border-radius:50%;
  background:rgba(45,225,166,.12);
  color:var(--mint);
  display:flex;
  align-items:center;
  justify-content:center;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  max-width:320px;
  color:rgba(255,255,255,.6);
}
.footer-links h5{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links ul li{
  margin-bottom:8px;
  list-style:none;
}
.footer-links a{
  color:rgba(255,255,255,.6);
  font-size:14px;
  transition:color .2s;
}
.footer-links a:hover{color:var(--mint);}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

@media(min-width:1400px){
  .container{max-width:1320px;}
}
@media(max-width:1199.98px){
  .navbar-custom .navbar-inner{width:100%;}
  .navbar-custom .nav-link{font-size:14px;padding:8px 12px;}
  .sidebar-card{padding:20px;}
}
@media(max-width:991.98px){
  .navbar-custom .navbar-inner{
    border-radius:20px;
    padding:12px 16px;
  }
  .navbar-custom .collapse.show,
  .navbar-custom .collapsing{
    margin-top:12px;
    background:rgba(11,29,42,.95);
    border-radius:16px;
    padding:16px;
  }
  .navbar-custom .nav-link{padding:10px 16px;}
  .btn-login{
    margin-top:10px;
    text-align:center;
    width:100%;
  }
  .article-sidebar{position:static;}
  .article-main{padding:48px 0 32px;}
  .container{padding-left:24px;padding-right:24px;}
}
@media(max-width:767.98px){
  .article-hero{padding:48px 0 40px;}
  .article-hero h1{font-size:26px;}
  .article-content{
    padding:24px;
    font-size:16px;
  }
  .article-meta{
    font-size:13px;
    gap:8px;
  }
  .related-section{padding:48px 0 32px;}
  .section-head h2{font-size:24px;}
  .footer{margin-top:48px;}
}
@media(max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .article-content{padding:18px;}
  .post-nav{
    flex-direction:column;
    gap:10px;
    align-items:stretch;
  }
  .post-link{text-align:center;}
  .related-card h3{font-size:16px;}
  .section-head{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #0B1D2A;
  --primary-2: #101F2A;
  --accent: #2DE1A6;
  --accent-hover: #5AF0BE;
  --gold: #C7A45B;
  --bg: #F5F7F6;
  --white: #FFFFFF;
  --text: #223344;
  --text-light: #5A6A73;
  --border: rgba(11, 29, 42, 0.08);
  --radius-card: 16px;
  --radius-btn: 24px;
  --radius-small: 8px;
  --shadow-sm: 0 4px 20px rgba(11, 29, 42, 0.04);
  --shadow-lg: 0 12px 32px rgba(11, 29, 42, 0.1);
  --spacer-sm: 32px;
  --spacer-lg: 80px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background-color: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: var(--primary); transition: color 0.2s ease; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1320px; width: 100%; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
@media (min-width: 1400px) { .container { max-width: 1320px; } }
@media (max-width: 1399.98px) { .container { max-width: 1140px; } }

/* ========== 导航 ========== */
.navbar-custom {
  position: sticky;
  top: 12px;
  z-index: 1050;
  background: rgba(11, 29, 42, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 10px 24px;
  box-shadow: 0 8px 30px rgba(11, 29, 42, 0.18);
}
.navbar-custom .navbar-inner { gap: 16px; }
.navbar-custom .navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.5px;
  transition: opacity 0.2s;
}
.navbar-custom .navbar-brand:hover { opacity: 0.88; color: #ffffff; }
.navbar-custom .brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--primary);
  flex-shrink: 0;
}
.navbar-custom .brand-icon svg { width: 20px; height: 20px; }
.navbar-custom .navbar-nav { gap: 2px; }
.navbar-custom .nav-link {
  color: rgba(255, 255, 255, 0.8) !important;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px !important;
  border-radius: 50px;
  position: relative;
  transition: color 0.2s, background 0.2s;
}
.navbar-custom .nav-link:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.06);
}
.navbar-custom .nav-link.active {
  color: var(--accent) !important;
  font-weight: 600;
}
.navbar-custom .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.btn-login {
  display: inline-block;
  padding: 8px 24px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 50px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-login:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary);
}
.navbar-toggler-custom {
  border: none;
  padding: 6px 8px;
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.navbar-toggler-custom .toggler-icon {
  width: 22px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all 0.2s;
}
.navbar-toggler-custom:focus { box-shadow: none; outline: none; }

/* ========== 页面 Hero ========== */
.page-hero {
  margin-top: -110px;
  padding: 170px 0 90px;
  background:
    linear-gradient(rgba(11, 29, 42, 0.82), rgba(16, 31, 42, 0.92)),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 70% 20%, rgba(45, 225, 166, 0.12) 0%, transparent 40%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb-custom {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 24px;
}
.breadcrumb-custom a { color: rgba(255, 255, 255, 0.7); transition: color 0.2s; }
.breadcrumb-custom a:hover { color: var(--accent); }
.breadcrumb-custom .sep { color: rgba(255, 255, 255, 0.35); }
.breadcrumb-custom .current { color: var(--accent); }
.page-hero h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.page-hero .hero-lead {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  margin-bottom: 0;
}

/* ========== 通用板块 ========== */
.section-block { padding: var(--spacer-lg) 0; }
.section-block + .section-block { padding-top: 0; }
.section-head { margin-bottom: 48px; }
.section-head .eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: inline-block;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 12px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-light);
  max-width: 680px;
  line-height: 1.8;
}

/* ========== 方案总览短介绍 ========== */
.solution-intro {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 48px;
}
.solution-intro .intro-text { font-size: 16px; line-height: 1.9; color: var(--text-light); }
.solution-intro .intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.solution-intro .intro-tags span {
  display: inline-block;
  padding: 6px 18px;
  background: #F1F4F3;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}
.solution-intro .intro-tags span.gold-tag {
  background: rgba(199, 164, 91, 0.12);
  color: var(--gold);
}

/* ========== 图文交错方案 ========== */
.solution-row {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 32px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.solution-row:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.solution-row .solution-media {
  min-height: 280px;
  background-color: #E8ECEB;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.solution-row .solution-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}
.solution-row .solution-body {
  padding: 36px 40px;
}
.solution-row .solution-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 1px;
  margin-bottom: 12px;
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid rgba(199, 164, 91, 0.35);
  border-radius: 50px;
  background: rgba(199, 164, 91, 0.06);
}
.solution-row .solution-body h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.4;
}
.solution-row .solution-body p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-light);
  margin-bottom: 20px;
}
.solution-row .solution-points {
  margin-bottom: 22px;
}
.solution-row .solution-points li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.7;
}
.solution-row .solution-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 9px;
}
.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(45, 225, 166, 0.1);
  padding: 8px 20px;
  border-radius: 50px;
  transition: all 0.25s ease;
}
.solution-link:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateX(4px);
}

/* ========== 服务保障数据条 ========== */
.stats-bar {
  background: var(--primary-2);
  padding: 64px 0;
  color: #ffffff;
  border-radius: var(--radius-card);
  margin: 48px 0 0;
  position: relative;
  overflow: hidden;
}
.stats-bar::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(45, 225, 166, 0.08);
  top: -120px;
  right: -80px;
}
.stats-bar .stat-item { text-align: center; padding: 16px 10px; position: relative; z-index: 1; }
.stats-bar .stat-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  font-feature-settings: "tnum";
  line-height: 1.2;
  letter-spacing: 1px;
}
.stats-bar .stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

/* ========== FAQ ========== */
.faq-section { background: var(--bg); padding: var(--spacer-lg) 0; }
.accordion-custom .accordion-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.accordion-custom .accordion-item:has(.accordion-button:not(.collapsed)) {
  border-left: 4px solid var(--accent);
  box-shadow: 0 8px 24px rgba(45, 225, 166, 0.12);
}
.accordion-custom .accordion-button {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  background: transparent;
  padding: 20px 24px;
  border: none;
  outline: none;
  box-shadow: none;
}
.accordion-custom .accordion-button:not(.collapsed) { color: var(--primary); background: rgba(45, 225, 166, 0.04); }
.accordion-custom .accordion-button:focus { box-shadow: none; }
.accordion-custom .accordion-button::after {
  background-image: none;
  content: "+";
  font-size: 22px;
  font-weight: 300;
  color: var(--primary);
  line-height: 1;
  transform: none;
  transition: transform 0.2s;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.accordion-custom .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  color: var(--accent);
}
.accordion-custom .accordion-body {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-light);
  padding: 4px 24px 22px;
  border-top: 1px solid rgba(11, 29, 42, 0.06);
  padding-top: 14px;
}

/* ========== CTA 条 ========== */
.cta-bar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  border-radius: var(--radius-card);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
  margin-top: 48px;
}
.cta-bar::before {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 2px dashed rgba(45, 225, 166, 0.18);
  top: -50px;
  right: 40px;
}
.cta-bar::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(45, 225, 166, 0.06);
  bottom: -120px;
  right: 120px;
}
.cta-bar .cta-content { position: relative; z-index: 2; }
.cta-bar h3 {
  font-size: 26px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  line-height: 1.4;
}
.cta-bar p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
  max-width: 520px;
  line-height: 1.8;
}
.btn-cta {
  display: inline-block;
  padding: 14px 36px;
  background: var(--accent);
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(45, 225, 166, 0.3);
}
.btn-cta:hover {
  background: var(--accent-hover);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(45, 225, 166, 0.35);
}
.btn-cta:focus { outline: 3px solid rgba(45, 225, 166, 0.4); outline-offset: 2px; }

/* ========== 页脚 ========== */
.footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 30px;
  margin-top: var(--spacer-lg);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff !important;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-brand .brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.footer-brand .brand-icon svg { width: 22px; height: 22px; }
.footer-desc {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
  margin-bottom: 28px;
  margin-top: 8px;
}
.footer-links h5 {
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: color 0.2s, padding-left 0.2s;
}
.footer-links ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom p { margin-bottom: 0; }

/* ========== 响应式 ========== */
@media (max-width: 1399.98px) {
  .navbar-custom { max-width: 1140px; }
}
@media (max-width: 1199.98px) {
  .navbar-custom { max-width: 96%; padding: 10px 18px; }
  .navbar-custom .nav-link { font-size: 14px; padding: 8px 12px !important; }
  .solution-row .solution-body { padding: 28px 30px; }
}
@media (max-width: 991.98px) {
  .navbar-custom {
    border-radius: 24px;
    top: 8px;
    max-width: calc(100% - 32px);
  }
  .navbar-custom .navbar-collapse {
    background: var(--primary);
    border-radius: 20px;
    padding: 16px 20px;
    margin-top: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  .navbar-custom .nav-link { color: #ffffff !important; padding: 10px 14px !important; }
  .navbar-custom .nav-link.active::after { display: none; }
  .navbar-custom .nav-link.active { color: var(--accent) !important; background: rgba(45, 225, 166, 0.1); border-radius: 12px; }
  .btn-login { margin-top: 10px; text-align: center; width: 100%; }
  .page-hero { margin-top: -90px; padding: 140px 0 70px; }
  .page-hero h1 { font-size: 34px; }
  .page-hero .hero-lead { font-size: 16px; }
  .section-head h2 { font-size: 28px; }
  .solution-row .solution-media,
  .solution-row .solution-media img { min-height: 220px; }
  .solution-row .solution-body { padding: 24px; }
  .stats-bar .stat-num { font-size: 36px; }
  .stats-bar .stat-item { padding: 12px 6px; }
  .cta-bar { padding: 40px 28px; }
}
@media (max-width: 767.98px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .section-block { padding: 56px 0; }
  .section-head h2 { font-size: 24px; }
  .section-head { margin-bottom: 32px; }
  .page-hero { padding: 130px 0 60px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero .hero-lead { font-size: 15px; }
  .solution-intro { padding: 24px 20px; }
  .solution-intro .intro-text { font-size: 14px; }
  .solution-row { flex-direction: column; }
  .solution-row .solution-media,
  .solution-row .solution-media img { min-height: 200px; }
  .solution-row .solution-body { padding: 22px 20px; }
  .solution-row .solution-body h3 { font-size: 20px; }
  .solution-row .solution-body p { font-size: 14px; }
  .stats-bar { padding: 40px 16px; border-radius: 16px; }
  .stats-bar .stat-num { font-size: 32px; }
  .stats-bar .stat-label { font-size: 13px; }
  .cta-bar { padding: 32px 20px; text-align: center; }
  .cta-bar h3 { font-size: 22px; }
  .cta-bar p { margin: 0 auto 20px; }
  .btn-cta { display: block; width: 100%; text-align: center; }
  .footer { padding: 48px 0 24px; }
  .footer-brand { margin-bottom: 10px; }
  .footer-desc { margin-bottom: 20px; }
  .footer-links { margin-bottom: 24px; }
}