/* roulang page: index */
:root {
  --primary: #1e3a5f;
  --primary-light: #2c4d7a;
  --primary-dark: #14263d;
  --accent: #c9a86a;
  --accent-light: #e6d4ab;
  --accent-dark: #a8873f;
  --bg-body: #f2f4f8;
  --bg-white: #ffffff;
  --bg-soft: #f8fafc;
  --text: #1a2a3a;
  --text-weak: #6b7a8d;
  --text-light: #9aa7b5;
  --border: #e3e8ef;
  --border-light: #eef1f6;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(20, 38, 61, 0.06);
  --shadow-md: 0 8px 30px rgba(20, 38, 61, 0.1);
  --shadow-lg: 0 16px 50px rgba(20, 38, 61, 0.16);
  --shadow-accent: 0 8px 30px rgba(201, 168, 106, 0.3);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --space-section: 96px;
  --space-section-sm: 64px;
  --sidebar-w: 260px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
button { cursor: pointer; border: none; background: none; }

.container-custom {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 4px;
  margin-top: 14px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-weak);
  max-width: 640px;
  margin-bottom: 44px;
  line-height: 1.7;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.section-header .section-subtitle { margin-bottom: 0; }

/* ====== App Shell Layout ====== */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-sidebar {
  width: var(--sidebar-w);
  background: var(--primary-dark);
  color: #dfe8f2;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  padding: 28px 0;
  overflow-y: auto;
  box-shadow: 4px 0 20px rgba(0,0,0,0.15);
}

.sidebar-brand {
  padding: 8px 28px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 20px;
}

.brand-logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  line-height: 1.3;
  display: inline-block;
  background: linear-gradient(135deg, #ffffff 60%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.sidebar-nav {
  flex: 1;
  padding: 8px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  color: #b8c8da;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-link i {
  width: 20px;
  font-size: 1.1rem;
  text-align: center;
}

.nav-link:hover {
  background: rgba(255,255,255,0.06);
  color: #ffffff;
  transform: translateX(4px);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #ffffff;
  border-color: rgba(255,255,255,0.1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.sidebar-footer {
  padding: 24px 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.sidebar-contact .contact-label {
  font-size: 0.8rem;
  color: #8aa0b8;
  display: block;
  margin-bottom: 6px;
}

.sidebar-contact a {
  color: var(--accent-light);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.sidebar-contact a:hover { color: #ffffff; }

/* ====== Main Content ====== */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-width: 0;
}

/* ====== Hero ====== */
.hero-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 140px 0 120px;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20,38,61,0.92) 0%, rgba(20,38,61,0.7) 50%, rgba(20,38,61,0.3) 100%);
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 40px;
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: 28px;
  letter-spacing: 0.05em;
}

.hero-badge i { font-size: 0.9rem; }

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 720px;
}

.hero-title span {
  color: var(--accent);
}

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 36px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  text-align: center;
  line-height: 1.2;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #ffffff;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(201,168,106,0.4);
  color: #ffffff;
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,0.45);
  color: #ffffff;
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: #ffffff;
  transform: translateY(-3px);
  color: #ffffff;
}

.btn-primary-solid {
  background: var(--primary);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary-solid:hover {
  background: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: #ffffff;
}

/* ====== Feature Cards ====== */
.feature-section {
  padding: var(--space-section) 0;
  background: var(--bg-white);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.4rem;
  color: var(--accent-light);
  box-shadow: 0 8px 20px rgba(30,58,95,0.25);
}

.feature-card h3 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 12px;
  font-weight: 700;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-weak);
  line-height: 1.75;
}

/* ====== Category Section ====== */
.category-section {
  padding: var(--space-section) 0;
  background: var(--bg-body);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: block;
}

.category-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201,168,106,0.4);
}

.category-card:hover .category-body h3 { color: var(--accent); }

.category-card .category-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.category-card .category-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.category-card:hover .category-img img {
  transform: scale(1.05);
}

.category-card .category-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(20,38,61,0.3));
}

.category-body {
  padding: 32px 28px;
}

.category-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  transition: var(--transition);
}

.category-body p {
  font-size: 0.92rem;
  color: var(--text-weak);
  margin-bottom: 20px;
  line-height: 1.7;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  transition: var(--transition);
}

.category-card:hover .category-link {
  gap: 12px;
  color: var(--accent-dark);
}

/* ====== Stats ====== */
.stats-section {
  padding: var(--space-section) 0;
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(201,168,106,0.15), transparent 70%);
  border-radius: 50%;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  padding: 40px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 8px;
  font-family: -apple-system, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
}

.stat-label {
  font-size: 0.9rem;
  color: #b8c8da;
  letter-spacing: 0.04em;
}

/* ====== News Section ====== */
.news-section {
  padding: var(--space-section) 0;
  background: var(--bg-white);
}

.news-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.news-item {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(201,168,106,0.35);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.news-category {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 40px;
  letter-spacing: 0.03em;
}

.news-date {
  font-size: 0.8rem;
  color: var(--text-light);
}

.news-item h3 {
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
}

.news-item h3 a {
  color: var(--text);
}

.news-item h3 a:hover {
  color: var(--accent);
}

.news-item p {
  font-size: 0.92rem;
  color: var(--text-weak);
  line-height: 1.7;
  flex: 1;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 16px;
  transition: var(--transition);
}

.read-more:hover { color: var(--accent); gap: 8px; }

.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border);
  color: var(--text-weak);
  font-size: 1rem;
}

/* ====== Advantages ====== */
.advantages-section {
  padding: var(--space-section) 0;
  background: var(--bg-body);
}

.advantages-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.advantages-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.advantages-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.advantages-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(20,38,61,0.4));
}

.adv-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.adv-item {
  display: flex;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.adv-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(201,168,106,0.4);
}

.adv-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(201,168,106,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
}

.adv-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.adv-item p {
  font-size: 0.92rem;
  color: var(--text-weak);
  line-height: 1.65;
}

/* ====== FAQ ====== */
.faq-section {
  padding: var(--space-section) 0;
  background: var(--bg-white);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-item {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(201,168,106,0.4);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-question::before {
  content: "Q";
  color: var(--accent);
  font-weight: 800;
  font-size: 0.9rem;
  background: rgba(201,168,106,0.15);
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.faq-answer {
  font-size: 0.92rem;
  color: var(--text-weak);
  line-height: 1.75;
  padding-left: 36px;
}

/* ====== CTA ====== */
.cta-section {
  padding: var(--space-section) 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20,38,61,0.9), rgba(30,58,95,0.8));
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.cta-content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ====== Footer ====== */
.footer {
  background: var(--primary-dark);
  padding: 80px 0 32px;
  color: #b8c8da;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .brand-logo {
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 0.92rem;
  color: #8aa0b8;
  line-height: 1.8;
  margin-top: 14px;
}

.footer h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #8aa0b8;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: #7a8fa8;
}

.footer-bottom a {
  color: #7a8fa8;
}

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

/* ====== Mobile Topbar ====== */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--primary-dark);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 110;
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.mobile-logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: #ffffff;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.3rem;
  border: none;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: rgba(255,255,255,0.2);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--primary-dark);
  padding: 16px;
  z-index: 109;
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 14px 18px;
  color: #b8c8da;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.mobile-menu a:hover {
  background: rgba(255,255,255,0.08);
  color: #ffffff;
}

.mobile-menu a.active {
  background: var(--primary-light);
  color: #ffffff;
}

/* ====== Buttons & Ripple ====== */
.btn:focus-visible,
.nav-link:focus-visible,
.category-card:focus-visible,
.footer-links a:focus-visible {
  outline: 3px solid rgba(201,168,106,0.6);
  outline-offset: 2px;
}

/* ====== Responsive ====== */
@media screen and (max-width: 1024px) {
  :root { --sidebar-w: 220px; }
  .hero-title { font-size: 2.6rem; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .advantages-image img { height: 380px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media screen and (max-width: 768px) {
  .app-sidebar { display: none; }
  .app-main { margin-left: 0; }
  .mobile-topbar { display: flex; }
  .app-main { padding-top: 64px; }
  .hero-section { padding: 80px 0 60px; }
  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 1rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-item { padding: 24px 16px; }
  .stat-number { font-size: 2rem; }
  .news-wrapper { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-content h2 { font-size: 1.8rem; }
  .container-custom { padding: 0 20px; }
  .section-title { font-size: 1.6rem; }
}

@media screen and (max-width: 520px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 1.7rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .adv-item { flex-direction: column; gap: 12px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; }
}

/* roulang page: category1 */
:root {
  --primary: #1b3a5c;
  --primary-rgb: 27, 58, 92;
  --primary-dark: #132b45;
  --primary-light: #2c5480;
  --accent: #c9a86a;
  --accent-rgb: 201, 168, 106;
  --accent-dark: #b08d4f;
  --bg-body: #f4f6f9;
  --bg-card: #ffffff;
  --bg-soft: #eef2f7;
  --bg-deep: #122438;
  --text-main: #1f2d3d;
  --text-muted: #5e7186;
  --text-light: #93a4b8;
  --border-color: #e4e9f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-xs: 0 1px 3px rgba(21, 33, 51, .04);
  --shadow-sm: 0 3px 12px rgba(21, 33, 51, .07);
  --shadow-md: 0 8px 28px rgba(21, 33, 51, .10);
  --shadow-lg: 0 18px 48px rgba(21, 33, 51, .15);
  --sidebar-w: 264px;
  --content-max: 1260px;
  --transition: all .25s cubic-bezier(.4, 0, .2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-body);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container-custom {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 32px;
}

.app-shell {
  min-height: 100vh;
}

.app-main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Sidebar ===== */
.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: linear-gradient(180deg, #16304d 0%, #0f2137 100%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  padding: 34px 24px 28px;
  transition: transform .32s cubic-bezier(.4, 0, .2, 1);
  box-shadow: 4px 0 24px rgba(13, 28, 45, .22);
}

.sidebar-brand {
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, .10);
  margin-bottom: 22px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .5px;
  color: #ffffff;
  white-space: nowrap;
}

.brand-logo i {
  color: var(--accent);
  margin-right: 8px;
  font-size: 20px;
}

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

.brand-sub {
  display: block;
  margin-top: 6px;
  color: rgba(255, 255, 255, .45);
  font-size: 12px;
  letter-spacing: 2px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 13px 16px;
  border-radius: 12px;
  color: rgba(255, 255, 255, .72);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-link i {
  width: 18px;
  text-align: center;
  font-size: 16px;
  color: rgba(255, 255, 255, .45);
  transition: var(--transition);
}

.nav-link:hover {
  background: rgba(255, 255, 255, .06);
  color: #ffffff;
}

.nav-link:hover i {
  color: var(--accent);
}

.nav-link.active {
  background: rgba(201, 168, 106, .14);
  border-color: rgba(201, 168, 106, .22);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
}

.nav-link.active i {
  color: var(--accent);
}

.sidebar-tip {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 14px;
  padding: 16px 16px;
  margin-top: 20px;
}

.sidebar-tip i {
  color: var(--accent);
  font-size: 18px;
  margin-bottom: 8px;
}

.sidebar-tip p {
  color: rgba(255, 255, 255, .55);
  font-size: 13px;
  line-height: 1.6;
}

/* ===== Mobile Header ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-deep);
  z-index: 80;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  box-shadow: 0 4px 18px rgba(13, 28, 45, .22);
}

.mobile-brand {
  color: #ffffff;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .3px;
}

.mobile-menu-btn {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: #ffffff;
  font-size: 18px;
  background: rgba(255, 255, 255, .08);
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, .16);
}

.mobile-tel {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--accent);
  font-size: 16px;
  background: rgba(201, 168, 106, .12);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 28, .55);
  z-index: 85;
  backdrop-filter: blur(2px);
}

.app-shell.sidebar-open .sidebar-overlay {
  display: block;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 86px 0 76px;
  background-color: var(--bg-deep);
  color: #ffffff;
  overflow: hidden;
}

.banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 35%;
  opacity: .32;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15, 31, 50, .94) 12%, rgba(20, 42, 66, .72) 55%, rgba(28, 56, 88, .40) 100%);
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, .55);
}

.breadcrumb a {
  color: rgba(255, 255, 255, .7);
  transition: var(--transition);
}

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

.breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, .3);
}

.breadcrumb .current {
  color: var(--accent);
}

.banner-content h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.banner-content p {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .78);
  max-width: 640px;
}

.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.banner-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 40px;
  font-size: 13px;
  color: rgba(255, 255, 255, .82);
}

.banner-meta i {
  color: var(--accent);
}

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

.section-block-alt {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-head {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 15px;
  background: rgba(var(--accent-rgb), .12);
  border: 1px solid rgba(var(--accent-rgb), .25);
  border-radius: 40px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 12px;
}

.section-head p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== Platform Guide Cards ===== */
.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}

.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-thumb {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.guide-card:hover .card-thumb img {
  transform: scale(1.06);
}

.card-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 36, 56, 0) 40%, rgba(18, 36, 56, .28) 100%);
}

.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255, 255, 255, .92);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 30px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, .12);
  backdrop-filter: blur(4px);
}

.card-body {
  padding: 24px 22px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 16px;
}

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

.card-link i {
  transition: transform .25s ease;
}

.card-link:hover {
  color: var(--accent-dark);
}

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

/* ===== Step List ===== */
.process-section {
  position: relative;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.step-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 28px 30px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}

.step-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), .35);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 20px;
  box-shadow: 0 6px 18px rgba(var(--primary-rgb), .28);
}

.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

.step-arrow {
  position: absolute;
  top: 50%;
  right: -16px;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 11px;
  z-index: 2;
  box-shadow: var(--shadow-xs);
}

.step-arrow.last {
  display: none;
}

/* ===== Resource List ===== */
.resource-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.resource-item {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  gap: 20px;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}

.resource-item:hover {
  border-color: rgba(var(--primary-rgb), .22);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.resource-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(var(--primary-rgb), .08), rgba(var(--accent-rgb), .14));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 22px;
}

.resource-info {
  flex: 1;
  min-width: 0;
}

.resource-info h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.resource-info p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.resource-meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.resource-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: rgba(var(--accent-rgb), .10);
  border: 1px solid rgba(var(--accent-rgb), .20);
  border-radius: 30px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
}

.resource-link {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(var(--primary-rgb), .06);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.resource-link:hover {
  background: var(--primary);
  color: #ffffff;
}

/* ===== Stats ===== */
.stats-section {
  position: relative;
  padding: 96px 0;
  background-color: var(--bg-deep);
  color: #ffffff;
  overflow: hidden;
}

.stats-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .18;
}

.stats-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(15, 31, 50, .95) 20%, rgba(23, 47, 72, .78) 100%);
}

.stats-content {
  position: relative;
  z-index: 2;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stats-item {
  text-align: center;
  padding: 38px 24px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.stats-item:hover {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(201, 168, 106, .25);
  transform: translateY(-4px);
}

.stats-num {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--accent);
  margin-bottom: 8px;
}

.stats-label {
  font-size: 14px;
  color: rgba(255, 255, 255, .65);
  letter-spacing: 1px;
}

/* ===== FAQ ===== */
.faq-wrap {
  display: flex;
  gap: 40px;
}

.faq-side {
  flex: 0 0 360px;
}

.faq-side-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
}

.faq-side-card i {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 14px;
}

.faq-side-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.faq-side-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.faq-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--primary);
  color: #ffffff;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.faq-contact-btn:hover {
  background: var(--primary-light);
  box-shadow: 0 6px 18px rgba(var(--primary-rgb), .32);
  color: #ffffff;
}

.faq-list {
  flex: 1;
}

.accordion {
  background: transparent !important;
}

.accordion-item {
  background: var(--bg-card) !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md) !important;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.accordion-item:hover {
  border-color: rgba(var(--primary-rgb), .20);
}

.accordion-title {
  background: var(--bg-card) !important;
  border: none !important;
  padding: 20px 24px !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  color: var(--text-main) !important;
  border-radius: var(--radius-md) !important;
  position: relative;
  padding-right: 52px !important;
}

.accordion-title::before {
  content: "\f077";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 13px;
  transition: var(--transition);
}

.accordion-item.is-active .accordion-title::before {
  transform: translateY(-50%) rotate(180deg);
}

.accordion-content {
  background: var(--bg-card) !important;
  border: none !important;
  color: var(--text-muted) !important;
  padding: 0 24px 22px !important;
  line-height: 1.85;
  font-size: 14px;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(201, 168, 106, .14);
  filter: blur(60px);
}

.cta-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.4;
}

.cta-content p {
  font-size: 15px;
  color: rgba(255, 255, 255, .75);
  max-width: 520px;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 32px;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 700;
  border-radius: 40px;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(201, 168, 106, .35);
}

.btn-primary:hover {
  background: #d9b87c;
  color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(201, 168, 106, .45);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 40px;
  transition: var(--transition);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .1);
  color: var(--accent);
  border-color: rgba(201, 168, 106, .5);
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, .65);
  padding: 56px 0 28px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.footer-brand .brand-logo {
  font-size: 20px;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .45);
  max-width: 340px;
  margin-top: 10px;
}

.footer h4 {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

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

.footer-links a {
  color: rgba(255, 255, 255, .55);
  font-size: 14px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.footer-links li {
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 26px;
  font-size: 13px;
  color: rgba(255, 255, 255, .32);
}

/* ===== Buttons / general ===== */
.btn:focus-visible,
.nav-link:focus-visible,
.resource-link:focus-visible,
.cta-actions a:focus-visible {
  outline: 3px solid rgba(201, 168, 106, .5);
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-arrow {
    display: none;
  }
  .faq-wrap {
    flex-direction: column;
  }
  .faq-side {
    flex: 0 0 auto;
    max-width: 520px;
  }
  .resources-wrap .resource-info p {
    white-space: normal;
  }
}

@media (max-width: 1023px) {
  .app-main {
    margin-left: 0;
  }
  .mobile-header {
    display: flex;
  }
  .app-sidebar {
    transform: translateX(-100%);
    box-shadow: 8px 0 32px rgba(8, 18, 28, .4);
  }
  .app-shell.sidebar-open .app-sidebar {
    transform: translateX(0);
  }
  .page-banner {
    padding: 64px 0 54px;
  }
  .banner-content h1 {
    font-size: 30px;
  }
  .section-block {
    padding: 64px 0;
  }
  .section-head h2 {
    font-size: 25px;
  }
}

@media (max-width: 768px) {
  .container-custom {
    padding: 0 20px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stats-num {
    font-size: 34px;
  }
  .step-grid {
    grid-template-columns: 1fr;
  }
  .resource-item {
    flex-wrap: wrap;
    padding: 18px;
  }
  .resource-meta {
    width: 100%;
    justify-content: flex-end;
    padding-top: 8px;
  }
  .cta-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .banner-content h1 {
    font-size: 26px;
  }
  .banner-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .section-head {
    margin-bottom: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 520px) {
  .container-custom {
    padding: 0 16px;
  }
  .page-banner {
    padding: 52px 0 44px;
  }
  .section-block {
    padding: 52px 0;
  }
  .banner-content h1 {
    font-size: 23px;
  }
  .banner-content p {
    font-size: 14px;
  }
  .section-head h2 {
    font-size: 21px;
  }
  .step-item {
    padding: 26px 22px;
  }
  .resource-icon {
    width: 46px;
    height: 46px;
    font-size: 18px;
  }
  .stats-item {
    padding: 24px 14px;
  }
  .stats-num {
    font-size: 28px;
  }
  .stats-label {
    font-size: 12px;
  }
  .btn-primary,
  .btn-ghost {
    padding: 12px 22px;
    font-size: 14px;
  }
}

/* roulang page: category2 */
:root {
    --primary: #1a3a5c;
    --primary-light: #2d5a8a;
    --primary-dark: #0f2438;
    --accent: #c9a063;
    --accent-light: #e8d5b0;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --text-main: #22344a;
    --text-weak: #6b7c8f;
    --border-light: #dbe3eb;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 6px 24px rgba(26, 58, 92, 0.08);
    --shadow-lg: 0 12px 40px rgba(26, 58, 92, 0.14);
    --transition: 0.25s ease;
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-light);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

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

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

  .app-shell {
    display: flex;
    min-height: 100vh;
  }

  /* ===== 侧边导航栏 ===== */
  .sidebar {
    width: 260px;
    flex-shrink: 0;
    background: var(--primary-dark);
    color: #c8d4e0;
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
    box-shadow: 4px 0 20px rgba(0,0,0,0.15);
  }

  .sidebar-brand {
    padding: 28px 24px 22px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .brand-logo {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    display: block;
    letter-spacing: 0.5px;
    line-height: 1.4;
  }

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

  .brand-tagline {
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    margin-top: 6px;
    letter-spacing: 0.3px;
  }

  .sidebar-nav {
    padding: 18px 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    color: rgba(255,255,255,0.7);
    font-size: 14.5px;
    font-weight: 500;
    transition: all var(--transition);
    border: 1px solid transparent;
  }

  .nav-link i {
    width: 20px;
    text-align: center;
    font-size: 15px;
  }

  .nav-link:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
    transform: translateX(4px);
  }

  .nav-link.active {
    background: rgba(201, 160, 99, 0.15);
    color: var(--accent);
    border-color: rgba(201, 160, 99, 0.3);
    font-weight: 600;
  }

  .nav-link.active i {
    color: var(--accent);
  }

  .sidebar-footer-link {
    padding: 14px 24px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
  }

  .sidebar-footer-link p {
    font-size: 12px;
    color: rgba(255,255,255,0.35);
  }

  /* ===== 主内容区 ===== */
  .main-content {
    flex: 1;
    margin-left: 260px;
    min-width: 0;
  }

  .container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
  }

  /* ===== 页头 ===== */
  .page-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
    padding: 52px 0 64px;
    color: #fff;
    position: relative;
    overflow: hidden;
  }

  .page-header h1 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 14px;
    letter-spacing: 1px;
  }

  .page-header p {
    font-size: 16px;
    max-width: 640px;
    color: rgba(255,255,255,0.75);
    line-height: 1.9;
  }

  .page-header-illustration {
    position: absolute;
    right: 30px;
    bottom: -60px;
    width: 280px;
    opacity: 0.1;
    transform: rotate(-12deg);
    pointer-events: none;
  }

  .breadcrumb {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 20px;
  }

  .breadcrumb i {
    font-size: 12px;
  }

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

  /* ===== 主体区块通用 ===== */
  .section {
    padding: 70px 0;
  }

  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(201,160,99,0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
    border: 1px solid rgba(201,160,99,0.25);
  }

  .section-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--primary-dark);
    letter-spacing: 0.5px;
  }

  .section-desc {
    font-size: 16px;
    color: var(--text-weak);
    max-width: 720px;
    line-height: 1.8;
    margin-bottom: 36px;
  }

  .section-head-center {
    text-align: center;
    margin-bottom: 48px;
  }

  .section-head-center .section-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .section-head-center .section-label {
    background: rgba(201,160,99,0.12);
    border-color: rgba(201,160,99,0.3);
  }

  /* ===== 服务卡片区 ===== */
  .service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .service-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 36px 28px;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
  }

  .service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0;
    transition: opacity var(--transition);
  }

  .service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(26, 58, 92, 0.2);
  }

  .service-card:hover::before {
    opacity: 1;
  }

  .service-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    margin-bottom: 22px;
  }

  .service-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary-dark);
  }

  .service-card p {
    font-size: 14.5px;
    color: var(--text-weak);
    line-height: 1.9;
    margin-bottom: 18px;
  }

  .service-card .card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: gap var(--transition);
  }

  .service-card .card-link:hover {
    gap: 12px;
    color: var(--accent);
  }

  /* ===== 服务流程 ===== */
  .process-section {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
  }

  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: process-counter;
  }

  .process-step {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 32px 24px;
    border: 1px solid var(--border-light);
    position: relative;
    transition: all var(--transition);
  }

  .process-step:hover {
    box-shadow: var(--shadow);
    border-color: rgba(201,160,99,0.4);
  }

  .process-step::before {
    counter-increment: process-counter;
    content: counter(process-counter, decimal-leading-zero);
    font-size: 48px;
    font-weight: 800;
    color: rgba(26,58,92,0.08);
    position: absolute;
    top: 16px;
    right: 18px;
    line-height: 1;
  }

  .process-step .step-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(201,160,99,0.12);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 18px;
  }

  .process-step h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-dark);
  }

  .process-step p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
  }

  /* ===== 服务保障/数据区 ===== */
  .stats-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    padding: 70px 0;
    color: #fff;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
  }

  .stat-item {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 8px;
    letter-spacing: 1px;
  }

  .stat-label {
    font-size: 15px;
    color: rgba(255,255,255,0.75);
    letter-spacing: 0.05em;
  }

  .stat-divider {
    width: 32px;
    height: 2px;
    background: rgba(255,255,255,0.2);
    margin: 10px auto;
  }

  /* ===== 优势区块 ===== */
  .benefit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: center;
  }

  .benefit-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    min-height: 320px;
    background-size: cover;
    background-position: center;
  }

  .benefit-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 320px;
  }

  .benefit-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(transparent, rgba(15,36,56,0.5));
  }

  .benefit-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .benefit-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
    box-shadow: var(--shadow);
  }

  .benefit-item i {
    color: var(--primary);
    font-size: 20px;
    margin-top: 3px;
    flex-shrink: 0;
  }

  .benefit-item h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--primary-dark);
  }

  .benefit-item p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
  }

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

  .faq-grid {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .faq-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-white);
    transition: all var(--transition);
  }

  .faq-item:hover {
    border-color: rgba(26,58,92,0.3);
    box-shadow: var(--shadow);
  }

  .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    color: var(--text-main);
    user-select: none;
  }

  .faq-question i {
    color: var(--primary);
    font-size: 14px;
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
  }

  .faq-item.active .faq-question i {
    transform: rotate(45deg);
  }

  .faq-answer {
    padding: 0 22px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
  }

  .faq-item.active .faq-answer {
    padding: 0 22px 20px;
    max-height: 300px;
  }

  .faq-answer p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.9;
    border-top: 1px solid var(--border-light);
    padding-top: 14px;
  }

  /* ===== CTA ===== */
  .cta-section {
    padding: 70px 0;
  }

  .cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 20px;
    padding: 48px 56px;
    color: #fff;
    position: relative;
    overflow: hidden;
  }

  .cta-box::after {
    content: '';
    position: absolute;
    right: -30px;
    top: -30px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
  }

  .cta-box h2 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 12px;
  }

  .cta-box p {
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    margin-bottom: 24px;
    max-width: 600px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
  }

  .btn-accent {
    background: var(--accent);
    color: var(--primary-dark);
  }

  .btn-accent:hover {
    background: #d9b87b;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  }

  .btn-outline-light {
    background: transparent;
    border: 1.5px solid rgba(255,255,255,0.6);
    color: #fff;
  }

  .btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    transform: translateY(-2px);
  }

  .cta-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  /* ===== 页脚 ===== */
  .footer {
    background: var(--primary-dark);
    color: #9db2c5;
    padding: 60px 0 24px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
  }

  .footer-brand .brand-logo {
    color: #fff;
    margin-bottom: 12px;
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.9;
    margin: 0;
    max-width: 340px;
  }

  .footer h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.05em;
  }

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

  .footer-links li {
    margin-bottom: 10px;
    font-size: 14px;
    color: #9db2c5;
  }

  .footer-links a {
    color: #9db2c5;
    transition: all var(--transition);
  }

  .footer-links a:hover {
    color: var(--accent);
    padding-left: 6px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    flex-wrap: wrap;
    gap: 12px;
  }

  /* ===== 移动端适配 ===== */
  .mobile-header {
    display: none;
  }

  @media (max-width: 1200px) {
    .service-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .service-card {
      padding: 28px 20px;
    }
    .process-grid {
      gap: 18px;
    }
  }

  @media (max-width: 1024px) {
    .sidebar {
      width: 220px;
    }
    .main-content {
      margin-left: 220px;
    }
    .container-custom {
      padding: 0 24px;
    }
    .process-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .benefit-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .benefit-image {
      min-height: 260px;
    }
    .benefit-image img {
      min-height: 260px;
    }
    .service-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 768px) {
    .app-shell {
      flex-direction: column;
    }
    .sidebar {
      display: none;
    }
    .mobile-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 20px;
      background: var(--primary-dark);
      color: #fff;
      position: sticky;
      top: 0;
      z-index: 200;
      box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    }
    .mobile-menu-btn {
      background: none;
      border: none;
      color: #fff;
      font-size: 20px;
      cursor: pointer;
      padding: 6px 10px;
      border-radius: 8px;
    }
    .mobile-menu-btn:hover {
      background: rgba(255,255,255,0.1);
    }
    .main-content {
      margin-left: 0;
    }
    .page-header h1 {
      font-size: 28px;
    }
    .section-title {
      font-size: 24px;
    }
    .section {
      padding: 48px 0;
    }
    .cta-box {
      padding: 36px 28px;
    }
    .service-grid {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }
    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
  }

  @media (max-width: 520px) {
    .container-custom {
      padding: 0 16px;
    }
    .page-header {
      padding: 40px 0 44px;
    }
    .process-grid {
      grid-template-columns: 1fr;
    }
    .stats-grid {
      grid-template-columns: 1fr 1fr;
    }
    .stat-number {
      font-size: 32px;
    }
    .section-head-center .section-desc {
      font-size: 14px;
    }
    .cta-actions {
      flex-direction: column;
    }
    .cta-actions .btn {
      width: 100%;
      justify-content: center;
    }
    .benefit-image {
      min-height: 200px;
    }
    .benefit-image img {
      min-height: 200px;
    }
  }

  /* 移动端抽屉菜单样式 */
  .mobile-drawer {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background: var(--primary-dark);
    z-index: 300;
    transition: left var(--transition);
    padding-top: 40px;
  }

  .mobile-drawer.open {
    left: 0;
  }

  .mobile-drawer .nav-link {
    color: rgba(255,255,255,0.8);
  }

  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 290;
    display: none;
  }

  .drawer-overlay.show {
    display: block;
  }

  .drawer-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    font-size: 22px;
    cursor: pointer;
    padding: 8px;
    z-index: 310;
  }

  .drawer-close:hover {
    color: #fff;
  }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0e3a6b;
            --primary-dark: #082a4f;
            --primary-light: #1e5aa8;
            --accent: #d4a853;
            --accent-light: #e8c97a;
            --bg: #f4f6fa;
            --bg-alt: #eef1f6;
            --surface: #ffffff;
            --text: #1f2a3a;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --border: #e4e8ef;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.1);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ========== 基础 Reset ========== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input, textarea {
            font: inherit;
        }
        ul, ol {
            list-style: none;
        }

        /* ========== App Shell 布局 ========== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            width: 272px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            background: var(--surface);
            border-right: 1px solid var(--border);
            z-index: 120;
            display: flex;
            flex-direction: column;
            transform: translateX(0);
            transition: transform 0.3s ease;
        }
        .sidebar::after {
            content: '';
            position: absolute;
            top: 0;
            right: -1px;
            width: 1px;
            height: 100%;
            background: linear-gradient(to bottom, transparent, rgba(14, 58, 107, 0.12) 30%, rgba(14, 58, 107, 0.06));
        }
        .sidebar-inner {
            padding: 28px 20px;
            display: flex;
            flex-direction: column;
            height: 100%;
            overflow-y: auto;
        }

        /* ========== 品牌 Logo ========== */
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 8px 8px;
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            transition: opacity 0.2s;
        }
        .brand-logo:hover {
            opacity: 0.85;
        }
        .brand-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 18px;
            box-shadow: 0 8px 20px rgba(14, 58, 107, 0.25);
            flex-shrink: 0;
        }
        .brand-text {
            white-space: nowrap;
        }

        /* ========== 侧边栏导航 ========== */
        .sidebar-nav {
            margin-top: 36px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 13px;
            padding: 12px 14px;
            border-radius: 12px;
            color: var(--text-weak);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(14, 58, 107, 0.05);
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(14, 58, 107, 0.08);
        }
        .nav-link.active::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            border-radius: 0 4px 4px 0;
            background: var(--accent);
        }

        /* ========== Overlay（移动端抽屉遮罩） ========== */
        .overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.5);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 110;
        }
        .overlay.show {
            opacity: 1;
            visibility: visible;
        }

        /* ========== 主内容区 ========== */
        .main-wrap {
            flex: 1;
            margin-left: 272px;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        /* ========== 顶栏 ========== */
        .topbar {
            position: sticky;
            top: 0;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 0 36px;
            height: 70px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 100;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            background: var(--bg);
            color: var(--text);
            font-size: 17px;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: var(--bg-alt);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            min-width: 0;
            flex: 1;
        }
        .breadcrumb a {
            color: var(--text-weak);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #cbd5e1;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .topbar-cta {
            margin-left: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .topbar-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(14, 58, 107, 0.25);
        }

        /* ========== 主内容容器 ========== */
        .main-content {
            width: 100%;
            max-width: 1040px;
            margin: 0 auto;
            padding: 36px 40px 56px;
            flex: 1;
        }

        /* ========== 文章卡片 ========== */
        .article-panel {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .article-head {
            padding: 44px 48px 28px;
        }
        .article-cat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(14, 58, 107, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            border-radius: 100px;
            transition: var(--transition);
        }
        .article-cat:hover {
            background: rgba(14, 58, 107, 0.12);
        }
        .article-title {
            font-size: 34px;
            line-height: 1.35;
            margin: 18px 0 16px;
            color: var(--text);
            letter-spacing: 0.01em;
            font-weight: 800;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-muted);
            font-size: 14px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-cover {
            margin: 0 48px 8px;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .article-cover img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        /* ========== 文章正文排版 ========== */
        .article-content {
            padding: 24px 48px 32px;
            font-size: 16px;
            line-height: 1.95;
            color: #374151;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 34px 0 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin: 28px 0 12px;
        }
        .article-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin: 20px 0 10px;
        }
        .article-content p {
            margin-bottom: 18px;
        }
        .article-content img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content figure {
            margin: 24px 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 22px;
            background: rgba(212, 168, 83, 0.08);
            margin: 24px 0;
            border-radius: 0 12px 12px 0;
            color: #475569;
            font-style: italic;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 18px 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 4px;
            transition: color 0.2s;
        }
        .article-content a:hover {
            color: var(--primary);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }
        .article-content th,
        .article-content td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content th {
            background: rgba(14, 58, 107, 0.05);
            font-weight: 700;
        }
        .article-content hr {
            border: none;
            border-top: 1px dashed var(--border);
            margin: 30px 0;
        }
        .article-content code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
        }
        .article-content pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 24px 0;
        }
        .article-content pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }

        /* ========== 标签 ========== */
        .article-tags {
            padding: 0 48px 44px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            padding: 6px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 100px;
            font-size: 13px;
            color: var(--text-weak);
            transition: var(--transition);
        }
        .tag:hover {
            background: rgba(14, 58, 107, 0.06);
            color: var(--primary);
            border-color: rgba(14, 58, 107, 0.15);
        }

        /* ========== 未找到面板 ========== */
        .not-found-panel {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 80px 48px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .not-found-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: grid;
            place-items: center;
            background: rgba(212, 168, 83, 0.12);
            color: var(--accent);
            border-radius: 50%;
            font-size: 24px;
        }
        .not-found-panel h1 {
            font-size: 26px;
            color: var(--text);
            margin-bottom: 10px;
            font-weight: 800;
        }
        .not-found-panel p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 700;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(14, 58, 107, 0.3);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .btn-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.35);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 推荐阅读 ========== */
        .related-panel {
            margin-top: 44px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 22px;
        }
        .section-eyebrow {
            display: block;
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--accent);
            font-weight: 700;
            margin-bottom: 4px;
        }
        .section-head h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
        }
        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .section-more:hover {
            gap: 12px;
            color: var(--primary-light);
        }
        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--surface);
            border-radius: 14px;
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 58, 107, 0.2);
        }
        .related-card:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .related-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }
        .related-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-radius: 100px;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .related-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .related-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-date {
            margin-top: auto;
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .empty-block {
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: 14px;
            padding: 36px;
            text-align: center;
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ========== CTA ========== */
        .cta-panel {
            margin-top: 44px;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius);
            padding: 44px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            opacity: 0.12;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            transform: translate(80px, -80px);
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-content h2 {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-content p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 480px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: #101b2d;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
            margin-top: 56px;
        }
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 44px;
            max-width: 1040px;
            margin: 0 auto;
            padding: 0 40px 40px;
        }
        .footer-brand .brand-logo {
            color: #fff;
            font-size: 22px;
            padding: 0;
        }
        .footer-brand p {
            margin-top: 12px;
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 280px;
        }
        .footer h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 14px;
        }
        .footer-links li {
            line-height: 1.5;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            max-width: 1040px;
            margin: 0 auto;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
            }
            .main-wrap {
                margin-left: 0;
            }
            .menu-toggle {
                display: flex;
            }
        }

        @media (max-width: 767px) {
            .topbar {
                padding: 0 16px;
            }
            .topbar-cta span {
                display: none;
            }
            .topbar-cta {
                width: 42px;
                height: 42px;
                padding: 0;
                justify-content: center;
            }
            .breadcrumb .current {
                max-width: 120px;
            }
            .main-content {
                padding: 20px 16px 40px;
            }
            .article-head {
                padding: 28px 22px 20px;
            }
            .article-title {
                font-size: 26px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
                flex-wrap: wrap;
            }
            .article-cover {
                margin: 0 22px 0;
            }
            .article-cover img {
                height: 220px;
            }
            .article-content {
                padding: 18px 22px 24px;
                font-size: 15px;
                line-height: 1.85;
            }
            .article-content h2 {
                font-size: 21px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .article-tags {
                padding: 0 22px 28px;
            }
            .not-found-panel {
                padding: 48px 24px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .section-head {
                align-items: center;
            }
            .cta-box {
                flex-direction: column;
                padding: 32px 24px;
                text-align: center;
            }
            .cta-actions {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 0 20px 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 22px;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .breadcrumb .current {
                max-width: 90px;
            }
            .related-body h3 {
                font-size: 15px;
            }
            .cta-content h2 {
                font-size: 22px;
            }
            .cta-box {
                padding: 28px 18px;
            }
            .menu-toggle {
                width: 38px;
                height: 38px;
            }
        }

        /* ========== Foundation 复写 ========== */
        .grid-margin-x > .cell {
            margin-bottom: 24px;
        }
        .cell.medium-4 {
            padding: 0 12px;
        }
        .grid-margin-x {
            margin: 0 -12px;
        }

/* roulang page: category3 */
:root {
    --primary: #0a4d8c;
    --primary-light: #1a6ab5;
    --primary-dark: #062d55;
    --accent: #d4a017;
    --accent-light: #e8b93a;
    --bg-main: #f5f7fb;
    --bg-white: #ffffff;
    --bg-deep: #0b1f33;
    --text-main: #1e2a3a;
    --text-secondary: #5a6b7d;
    --text-light: #8b9bad;
    --border-light: #e3e9f0;
    --border-gray: #d1d9e2;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(10, 77, 140, 0.06);
    --shadow-md: 0 6px 24px rgba(10, 77, 140, 0.10);
    --shadow-lg: 0 12px 40px rgba(10, 77, 140, 0.16);
    --transition-base: all 0.3s ease;
    --sidebar-width: 260px;
    --header-height: 72px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition-base); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
.container-custom { max-width: 1320px; margin: 0 auto; padding: 0 32px; }
.section-pad { padding: 88px 0; }
.section-subtitle { 
    font-size: 14px; font-weight: 600; letter-spacing: 2px;
    color: var(--accent); text-transform: uppercase; 
    display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px;
}
.section-subtitle::before { content:''; width: 24px; height: 2px; background: var(--accent); border-radius: 2px; }
.section-title { font-size: 32px; font-weight: 700; line-height: 1.35; letter-spacing: -0.02em; color: var(--text-main); margin-bottom: 12px; }
.section-head-desc { font-size: 15px; color: var(--text-secondary); max-width: 620px; line-height: 1.8; }
.text-gradient { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/*** Header 顶部栏 ***/
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: var(--header-height);
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    display: flex; align-items: center;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 0 32px; }
.brand-logo { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: -0.3px; display: flex; align-items: center; gap: 8px; }
.brand-logo i { color: var(--accent); font-size: 24px; }
.header-search { display: flex; align-items: center; background: var(--bg-main); border: 1px solid var(--border-light); border-radius: 50px; padding: 6px 8px 6px 16px; width: 320px; transition: var(--transition-base); }
.header-search:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(10,77,140,0.08); background: #fff; }
.header-search input { border: none; background: transparent; flex: 1; font-size: 14px; color: var(--text-main); }
.header-search button { background: var(--primary); color: #fff; border: none; border-radius: 50%; width: 34px; height: 34px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition-base); }
.header-search button:hover { background: var(--primary-dark); }
.mobile-menu-trigger { display: none; background: none; border: none; font-size: 22px; color: var(--primary); cursor: pointer; padding: 6px; border-radius: 8px; }
.mobile-menu-trigger:hover { background: var(--bg-main); }

/*** App Shell 布局 ***/
.app-shell { display: flex; padding-top: var(--header-height); min-height: 100vh; }

/*** 左侧导航 ***/
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-deep);
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    z-index: 900;
    padding: 24px 16px;
    overflow-y: auto;
}
.sidebar-label {
    font-size: 11px; font-weight: 700; letter-spacing: 1.8px;
    text-transform: uppercase; color: #4d6478;
    padding: 8px 14px 10px;
    display: block;
}
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.nav-link {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    color: #a8b8c8;
    font-size: 14px; font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}
.nav-link i { font-size: 16px; width: 20px; text-align: center; color: #4d6478; transition: var(--transition-base); }
.nav-link:hover { background: rgba(255,255,255,0.05); color: #fff; }
.nav-link:hover i { color: var(--accent); }
.nav-link.active { background: rgba(212,160,23,0.12); color: var(--accent); }
.nav-link.active i { color: var(--accent); }
.nav-link.active::after {
    content:''; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
    width: 3px; height: 20px; background: var(--accent); border-radius: 3px 0 0 3px;
}
.sidebar-info { margin-top: 32px; padding: 16px 14px; background: rgba(255,255,255,0.04); border-radius: var(--radius-md); border: 1px solid rgba(255,255,255,0.06); }
.sidebar-info p { font-size: 12px; color: #5a7286; line-height: 1.7; }
.sidebar-info strong { color: var(--accent); font-size: 13px; }

/*** 主内容区 ***/
.main-content { flex: 1; margin-left: var(--sidebar-width); min-width: 0; }

/*** Hero 区域 ***/
.page-hero {
    position: relative;
    padding: 96px 0 72px;
    background: linear-gradient(135deg, rgba(6,45,85,0.92) 0%, rgba(10,77,140,0.85) 60%, rgba(26,106,181,0.75) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
}
.hero-content { max-width: 760px; position: relative; z-index: 2; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
    padding: 6px 16px; border-radius: 50px;
    font-size: 12px; font-weight: 600; letter-spacing: 1px;
    margin-bottom: 20px; backdrop-filter: blur(4px);
}
.hero-badge i { color: var(--accent); }
.hero-title { font-size: 42px; font-weight: 800; line-height: 1.25; letter-spacing: -0.02em; margin-bottom: 16px; }
.hero-desc { font-size: 16px; color: rgba(255,255,255,0.85); line-height: 1.8; max-width: 600px; }
.hero-meta { display: flex; gap: 32px; margin-top: 36px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.15); }
.hero-meta-item { display: flex; flex-direction: column; }
.hero-meta-item .num { font-size: 26px; font-weight: 800; color: var(--accent-light); line-height: 1.2; }
.hero-meta-item .label { font-size: 12px; color: rgba(255,255,255,0.7); margin-top: 2px; }

/*** 筛选标签条 ***/
.filter-section { padding: 32px 0; border-bottom: 1px solid var(--border-light); background: var(--bg-white); position: sticky; top: var(--header-height); z-index: 800; box-shadow: var(--shadow-sm); }
.filter-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.filter-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-right: 4px; }
.filter-tag {
    padding: 8px 20px; border-radius: 50px;
    border: 1px solid var(--border-gray);
    background: var(--bg-white);
    font-size: 13px; font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex; align-items: center; gap: 6px;
}
.filter-tag i { font-size: 12px; }
.filter-tag:hover { border-color: var(--primary); color: var(--primary); background: rgba(10,77,140,0.03); }
.filter-tag.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(10,77,140,0.25); }

/*** 动态与资讯网格 ***/
.news-section { padding: 64px 0 72px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    display: flex; flex-direction: column;
    height: 100%;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.news-card-cover { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.news-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-card-cover img { transform: scale(1.05); }
.news-card-cover .category-badge {
    position: absolute; top: 16px; left: 16px;
    background: rgba(6,45,85,0.88); backdrop-filter: blur(4px);
    color: #fff; font-size: 12px; font-weight: 600;
    padding: 4px 12px; border-radius: 50px;
}
.news-card-cover .category-badge.hot { background: rgba(212,160,23,0.92); }
.news-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-date { font-size: 12px; color: var(--text-light); margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.news-date i { color: var(--accent); }
.news-title { font-size: 17px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; color: var(--text-main); }
.news-title a:hover { color: var(--primary); }
.news-excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.8; flex: 1; margin-bottom: 16px; }
.news-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--border-light); }
.news-tag { font-size: 12px; color: var(--primary); background: rgba(10,77,140,0.06); padding: 3px 10px; border-radius: 50px; font-weight: 500; }
.news-more { font-size: 13px; color: var(--text-secondary); font-weight: 500; display: flex; align-items: center; gap: 4px; }
.news-more i { font-size: 12px; transition: transform 0.3s ease; }
.news-card:hover .news-more { color: var(--primary); }
.news-card:hover .news-more i { transform: translateX(4px); }

/*** 公告专区 ***/
.announce-section { padding: 80px 0; background: linear-gradient(135deg, var(--bg-deep) 0%, #0c2d4f 50%, #164877 100%); color: #fff; position: relative; overflow: hidden; }
.announce-section::before { content:''; position: absolute; top: -60px; right: -60px; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,0.03); }
.announce-grid { display: grid; grid-template-columns: 1.2fr 1.8fr; gap: 48px; align-items: center; }
.announce-left { position: relative; z-index: 2; }
.announce-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(212,160,23,0.15); border: 1px solid rgba(212,160,23,0.3); padding: 6px 14px; border-radius: 50px; font-size: 13px; color: var(--accent-light); font-weight: 600; margin-bottom: 16px; }
.announce-title { font-size: 32px; font-weight: 700; line-height: 1.4; margin-bottom: 14px; }
.announce-desc { color: rgba(255,255,255,0.75); line-height: 1.8; margin-bottom: 24px; }
.announce-list { display: flex; flex-direction: column; gap: 0; }
.announce-item {
    display: flex; gap: 20px; padding: 24px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    position: relative; z-index: 2;
    transition: var(--transition-base);
}
.announce-item:first-child { padding-top: 0; }
.announce-item:last-child { border-bottom: none; padding-bottom: 0; }
.announce-item:hover .announce-item-title { color: var(--accent-light); }
.announce-date-box { min-width: 88px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 12px 10px; text-align: center; align-self: flex-start; }
.announce-date-box .day { font-size: 22px; font-weight: 800; color: var(--accent-light); line-height: 1; display: block; }
.announce-date-box .mon { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 4px; }
.announce-item-body { flex: 1; }
.announce-item-title { font-size: 16px; font-weight: 600; margin-bottom: 6px; transition: var(--transition-base); }
.announce-item-text { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.7; }
.announce-item-meta { display: flex; align-items: center; gap: 16px; margin-top: 10px; font-size: 12px; color: rgba(255,255,255,0.4); }
.announce-item-meta i { color: var(--accent); }

/*** 统计板块 ***/
.stats-section { padding: 72px 0; background: var(--bg-white); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-card { text-align: center; padding: 32px 20px; border-radius: var(--radius-lg); background: var(--bg-main); border: 1px solid var(--border-light); transition: var(--transition-base); }
.stat-card:hover { background: var(--bg-white); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.stat-icon { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, rgba(10,77,140,0.1), rgba(212,160,23,0.1)); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; color: var(--primary); font-size: 22px; }
.stat-num { font-size: 38px; font-weight: 800; color: var(--primary); line-height: 1.1; letter-spacing: -1px; }
.stat-num span { font-size: 20px; font-weight: 600; color: var(--accent); }
.stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

/*** 订阅区块 ***/
.newsletter-section { padding: 80px 0; }
.newsletter-card {
    background: linear-gradient(135deg, rgba(10,77,140,0.04), rgba(212,160,23,0.06));
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 48px;
    background-image: url('/assets/images/coverpic/cover-5.png');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}
.newsletter-card::before { content:''; position: absolute; inset: 0; background: rgba(255,255,255,0.9); backdrop-filter: blur(2px); }
.newsletter-content { position: relative; z-index: 2; max-width: 560px; }
.newsletter-content h3 { font-size: 26px; font-weight: 700; margin-bottom: 12px; }
.newsletter-content p { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.8; }
.newsletter-form { display: flex; gap: 12px; flex-wrap: wrap; }
.newsletter-form input {
    flex: 1; min-width: 240px;
    padding: 14px 20px;
    border: 1px solid var(--border-gray);
    border-radius: 50px;
    font-size: 14px;
    background: #fff;
    transition: var(--transition-base);
}
.newsletter-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(10,77,140,0.08); }
.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary); color: #fff;
    padding: 13px 28px; border: none; border-radius: 50px;
    font-size: 14px; font-weight: 600;
    cursor: pointer; transition: var(--transition-base);
    box-shadow: 0 4px 14px rgba(10,77,140,0.25);
}
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(10,77,140,0.35); transform: translateY(-2px); color: #fff; }
.btn-primary:active { transform: translateY(0); }
.btn-light {
    display: inline-flex; align-items: center; gap: 8px;
    background: #fff; color: var(--primary);
    padding: 13px 28px; border: 1px solid var(--border-gray); border-radius: 50px;
    font-size: 14px; font-weight: 600;
    cursor: pointer; transition: var(--transition-base);
}
.btn-light:hover { border-color: var(--primary); color: var(--primary-dark); box-shadow: var(--shadow-sm); transform: translateY(-2px); }

/*** FAQ 板块 ***/
.faq-section { padding: 80px 0; background: var(--bg-white); }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 1100px; }
.faq-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 24px 28px;
    background: var(--bg-main);
    transition: var(--transition-base);
    cursor: pointer;
}
.faq-item:hover { background: #fff; box-shadow: var(--shadow-md); border-color: transparent; }
.faq-question { display: flex; align-items: flex-start; gap: 16px; font-size: 16px; font-weight: 600; line-height: 1.5; }
.faq-icon { width: 28px; height: 28px; min-width: 28px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; margin-top: 2px; }
.faq-answer {
    margin-left: 44px; margin-top: 12px;
    font-size: 14px; color: var(--text-secondary);
    line-height: 1.8;
}

/*** CTA 板块 ***/
.cta-section { padding: 72px 0; }
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 70%, #218bc4 100%);
    border-radius: var(--radius-lg);
    padding: 56px 64px;
    display: flex; align-items: center; justify-content: space-between; gap: 40px;
    color: #fff;
    position: relative; overflow: hidden;
}
.cta-box::before { content:''; position: absolute; right: -80px; top: -80px; width: 240px; height: 240px; border-radius: 50%; background: rgba(255,255,255,0.06); }
.cta-box::after { content:''; position: absolute; right: 40px; bottom: -60px; width: 140px; height: 140px; border-radius: 50%; background: rgba(255,255,255,0.05); }
.cta-text { position: relative; z-index: 2; }
.cta-text h3 { font-size: 30px; font-weight: 800; margin-bottom: 10px; }
.cta-text p { color: rgba(255,255,255,0.85); font-size: 15px; }
.cta-actions { display: flex; gap: 14px; position: relative; z-index: 2; flex-shrink: 0; }
.btn-cta {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent); color: var(--bg-deep);
    padding: 14px 30px; border-radius: 50px;
    font-weight: 700; font-size: 14px;
    transition: var(--transition-base); box-shadow: 0 4px 20px rgba(212,160,23,0.4);
    border: none; cursor: pointer;
}
.btn-cta:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(212,160,23,0.5); color: var(--bg-deep); }
.btn-ghost {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.35);
    color: #fff; padding: 14px 28px; border-radius: 50px;
    font-weight: 600; font-size: 14px;
    transition: var(--transition-base); cursor: pointer;
}
.btn-ghost:hover { background: rgba(255,255,255,0.2); border-color: #fff; transform: translateY(-2px); }

/*** 页脚 ***/
.footer {
    background: var(--bg-deep);
    color: #8fa4b8;
    padding: 64px 0 0;
    border-top: 4px solid var(--accent);
}
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand-logo { color: #fff; font-size: 20px; margin-bottom: 16px; display: inline-flex; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; margin-top: 14px; color: #6d8296; }
.footer h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 20px; letter-spacing: 0.5px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a, .footer-links li { font-size: 14px; color: #6d8296; transition: var(--transition-base); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-links i { width: 20px; color: var(--accent); margin-right: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 24px 0;
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; color: #4d6478;
}

/*** 移动端适配 ***/
@media screen and (max-width: 1024px) {
    .container-custom { padding: 0 24px; }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .page-hero { padding: 72px 0 56px; }
    .hero-title { font-size: 32px; }
    .header-search { width: 220px; }
    .announce-grid { grid-template-columns: 1fr; }
}
@media screen and (max-width: 768px) {
    .site-header { height: 60px; }
    .header-inner { padding: 0 16px; }
    .header-search { display: none; }
    .mobile-menu-trigger { display: flex; align-items: center; justify-content: center; }
    .app-shell { padding-top: 60px; }
    .sidebar {
        width: 260px;
        left: -280px;
        top: 60px;
        transition: left 0.35s ease;
        z-index: 1000;
        box-shadow: 4px 0 20px rgba(0,0,0,0.2);
        padding-bottom: 32px;
    }
    .sidebar.open { left: 0; }
    .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 950; }
    .sidebar-overlay.show { display: block; }
    .main-content { margin-left: 0; }
    .news-grid { grid-template-columns: 1fr; gap: 20px; }
    .faq-grid { grid-template-columns: 1fr; }
    .cta-box { flex-direction: column; text-align: center; padding: 40px 28px; }
    .cta-actions { flex-direction: column; width: 100%; }
    .cta-actions .btn-cta, .cta-actions .btn-ghost { justify-content: center; width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-num { font-size: 28px; }
    .hero-meta { gap: 20px; flex-wrap: wrap; }
    .filter-section { top: 60px; }
    .newsletter-card { padding: 32px 24px; }
    .newsletter-form { flex-direction: column; }
    .newsletter-form input { min-width: auto; }
    .section-title { font-size: 24px; }
    .section-pad { padding: 56px 0; }
}
@media screen and (max-width: 520px) {
    .stats-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 26px; }
    .hero-desc { font-size: 14px; }
    .hero-meta-item .num { font-size: 20px; }
    .filter-row { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 8px; -webkit-overflow-scrolling: touch; }
    .filter-tag { white-space: nowrap; flex-shrink: 0; }
    .announce-item { flex-direction: column; gap: 12px; }
    .announce-date-box { align-self: flex-start; }
    .faq-question { font-size: 14px; }
    .faq-answer { margin-left: 32px; }
    .cta-text h3 { font-size: 22px; }
}

/*** 空状态和分页 ***/
.pagination-row { display: flex; justify-content: center; margin-top: 48px; }
.pagination { display: flex; gap: 8px; flex-wrap: wrap; }
.page-btn {
    min-width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-gray);
    background: #fff;
    font-size: 14px; color: var(--text-secondary);
    transition: var(--transition-base);
    padding: 0 12px;
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }