/* roulang page: index */
:root {
  --primary: #0C6B5E;
  --primary-dark: #0A5C50;
  --primary-light: #E6F2F0;
  --accent: #E8A33B;
  --accent-dark: #D08E24;
  --dark: #0B3A34;
  --ink: #143D36;
  --text: #464D4C;
  --muted: #8A9391;
  --bg: #FFFFFF;
  --bg-light: #F8F9F8;
  --border: #E5E7EB;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-pill: 999px;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
  --transition: all 0.25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  flex-wrap: nowrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 17px;
  flex-shrink: 0;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0 20px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: #3F4A47;
  padding: 24px 0 22px;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.main-nav a:hover {
  color: var(--primary);
  border-bottom-color: rgba(12,107,94,0.4);
}
.main-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F1F3F2;
  border-radius: 18px;
  padding: 8px 14px;
  width: 200px;
  transition: var(--transition);
}
.search-box:focus-within {
  background: #E9F1EF;
  box-shadow: 0 0 0 2px rgba(12,107,94,0.15);
}
.search-box i {
  font-size: 13px;
  color: var(--muted);
}
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  width: 100%;
  color: var(--text);
}
.search-box input::placeholder {
  color: #9CA3AF;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  background: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.cta-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(12,107,94,0.3);
}
.menu-toggle {
  display: none;
  background: #F1F3F2;
  border: none;
  border-radius: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  color: var(--ink);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  color: #ffffff;
  background: linear-gradient(180deg, rgba(11,58,52,0.2) 0%, rgba(11,58,52,0.6) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding: 104px 0;
}
.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.hero-content {
  flex: 1;
  min-width: 280px;
  max-width: 660px;
}
.hero h1 {
  font-size: 42px;
  line-height: 1.28;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255,255,255,0.9);
  margin-bottom: 30px;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 6px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
}
.btn-accent {
  background: var(--accent);
  color: #ffffff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(232,163,59,0.4);
}
.btn-ghost {
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.6);
  color: #ffffff;
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.24);
  transform: translateY(-2px);
}

/* ===== Countdown ===== */
.countdown-card {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.4);
  backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: 28px 30px;
  min-width: 340px;
  flex: 0 0 auto;
}
.countdown-label {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.92);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.countdown {
  display: flex;
  align-items: center;
  gap: 8px;
}
.cd-item {
  background: #ffffff;
  border-radius: 10px;
  padding: 14px 10px;
  text-align: center;
  min-width: 66px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.cd-num {
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  font-family: "Courier New", Consolas, monospace;
  line-height: 1.2;
}
.cd-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}
.cd-colon {
  color: #ffffff;
  font-size: 24px;
  font-weight: 700;
  padding: 0 2px;
}
.countdown-hint {
  font-size: 12px;
  color: rgba(255,255,255,0.75);
  margin-top: 14px;
  text-align: center;
}

/* ===== Section ===== */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--bg-light);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 10px;
}
.section-head p {
  font-size: 15px;
  color: var(--muted);
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.step-item {
  text-align: center;
  padding: 36px 24px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.step-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.step-num {
  display: inline-block;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #ffffff;
  border-radius: 50%;
  font-size: 16px;
  font-weight: 700;
  line-height: 44px;
  margin-bottom: 18px;
  font-family: "Courier New", Consolas, monospace;
}
.step-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== Wall ===== */
.wall-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.wall-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #e8eceb;
}
.wall-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.wall-card:hover img {
  transform: scale(1.03);
}
.wall-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 48px 20px 16px;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.68) 100%);
  color: #ffffff;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
}

/* ===== CTA ===== */
.cta-band {
  background: linear-gradient(135deg, #0A5C50 0%, #0C6B5E 55%, #14675D 100%);
  padding: 76px 0;
  text-align: center;
  color: #ffffff;
}
.cta-band h2 {
  color: #ffffff;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-band p {
  color: rgba(255,255,255,0.9);
  font-size: 16px;
  margin-bottom: 30px;
}
.cta-btn-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: var(--primary);
  border: none;
  border-radius: 6px;
  padding: 14px 38px;
  min-width: 200px;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}
.cta-btn-light:hover {
  background: #F1F3F2;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

/* ===== Stat Band ===== */
.stat-band {
  background: var(--dark);
  padding: 48px 0;
  color: #ffffff;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item {
  padding: 16px;
}
.stat-num {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
  line-height: 1.2;
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  transition: var(--transition);
}
.faq-item summary:hover {
  color: var(--primary);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item .faq-body {
  padding: 0 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== News ===== */
.news-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.news-card {
  display: flex;
  gap: 20px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
  align-items: center;
}
.news-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.news-thumb {
  width: 140px;
  height: 96px;
  flex-shrink: 0;
  background: #e8eceb;
  border-radius: 6px;
  overflow: hidden;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-body {
  flex: 1;
  min-width: 0;
}
.news-body h3 {
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 6px;
}
.news-body h3 a {
  color: var(--ink);
  transition: var(--transition);
}
.news-card:hover h3 a {
  color: var(--primary);
}
.news-summary {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}
.badge {
  background: #FFF4E0;
  color: #9A6B00;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.news-date {
  white-space: nowrap;
}
.read-more {
  margin-left: auto;
  color: var(--primary);
  font-weight: 500;
  white-space: nowrap;
  transition: var(--transition);
}
.read-more:hover {
  text-decoration: underline;
}
.load-more-wrap {
  text-align: center;
  margin-top: 40px;
}
.btn-load-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 30px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  transition: var(--transition);
}
.btn-load-more:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow);
}
.empty-state {
  text-align: center;
  padding: 48px 20px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 15px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  max-width: 320px;
}
.footer-col h4 {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  padding: 5px 0;
  transition: var(--transition);
}
.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 36px; }
  .countdown-card { min-width: 300px; }
  .features-grid, .steps-grid, .wall-grid { grid-template-columns: repeat(2, 1fr); }
  .wall-card:last-child { grid-column: 1 / -1; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .search-box input { display: none; }
  .search-box { width: 40px; justify-content: center; padding: 8px 10px; }
  .menu-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: #ffffff;
    padding: 8px 24px 16px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
    border-bottom: 1px solid var(--border);
    gap: 0;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    display: block;
    width: 100%;
    padding: 14px 0;
    border-bottom: none;
    border-bottom: 1px solid #F1F3F2;
  }
  .main-nav a:last-child { border-bottom: none; }
  .main-nav a.active { border-bottom: none; color: var(--primary); }

  .hero { min-height: auto; padding: 72px 0; }
  .hero-inner { flex-direction: column; align-items: flex-start; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 16px; }
  .countdown-card { min-width: 100%; padding: 24px; }
  .cd-item { min-width: 58px; }
  .cd-num { font-size: 22px; }

  .section { padding: 56px 0; }
  .section-head h2 { font-size: 24px; }
  .features-grid, .steps-grid, .wall-grid { grid-template-columns: 1fr; }
  .wall-card:last-child { grid-column: auto; }

  .news-card { flex-direction: row; padding: 12px; gap: 12px; }
  .news-thumb { width: 90px; height: 72px; }
  .news-body h3 { font-size: 15px; }
  .news-summary { -webkit-line-clamp: 1; }
  .read-more { display: none; }

  .cta-band h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .logo { font-size: 18px; }
  .logo-icon { width: 32px; height: 32px; font-size: 15px; }
  .cta-btn { padding: 9px 14px; font-size: 14px; }
  .main-nav { top: 64px; }
  .hero { padding: 56px 0; }
  .hero h1 { font-size: 26px; }
  .hero-buttons .btn { width: 100%; }
  .countdown { gap: 4px; }
  .cd-item { min-width: 52px; padding: 10px 6px; }
  .cd-num { font-size: 20px; }
  .cd-label { font-size: 11px; }
  .cd-colon { font-size: 18px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-num { font-size: 24px; }
  .footer-bottom { font-size: 12px; }
}

/* roulang page: category1 */
:root {
  --primary: #0C6B5E;
  --primary-dark: #0A5C50;
  --primary-light: #E6F2F0;
  --accent: #E8A33B;
  --accent-light: #FFF4E0;
  --accent-text: #9A6B00;
  --dark: #0B3A34;
  --dark-2: #10312B;
  --text: #464D4C;
  --text-light: #8A9391;
  --bg-gray: #F8F9F8;
  --white: #FFFFFF;
  --border: #E5E7EB;
  --border-light: #ECEFEE;
  --radius: 8px;
  --radius-btn: 5px;
  --radius-search: 18px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --container: 1280px;
  --spacer: 80px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  text-decoration: none;
  color: inherit;
}

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

input[type="search"] {
  font-family: inherit;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  height: 72px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 16px;
}

.logo span:last-child {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark-2);
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: #3F4A47;
  padding: 8px 16px;
  border-radius: 6px;
  position: relative;
  transition: color 0.2s;
}

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

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

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius-search);
  padding: 0 14px;
  height: 38px;
  width: 210px;
  gap: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(12, 107, 94, 0.12);
}

.search-box i {
  font-size: 14px;
  color: var(--text-light);
  flex-shrink: 0;
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--text);
  width: 100%;
}

.search-box input::placeholder {
  color: #9CA3AF;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-btn);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.cta-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text);
  border-radius: 6px;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: var(--bg-gray);
}

/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  min-height: 240px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 58, 52, 0.45);
  z-index: 1;
}

.page-hero .container {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-top: 48px;
  padding-bottom: 48px;
}

.breadcrumb {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 12px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.2s;
}

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

.breadcrumb i {
  font-size: 10px;
  margin: 0 8px;
  opacity: 0.7;
}

.page-hero h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.page-hero .hero-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  margin-top: 12px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== Section Base ========== */
.section {
  padding: var(--spacer) 0;
}

.section-alt {
  background: var(--bg-gray);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--dark-2);
  line-height: 1.4;
  margin-bottom: 12px;
}

.section-head h2 em {
  font-style: normal;
  color: var(--primary);
}

.section-head p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ========== Category Intro ========== */
.cat-intro {
  padding: var(--spacer) 0 56px;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.intro-text h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--dark-2);
  line-height: 1.4;
  margin-bottom: 16px;
}

.intro-text h2 span {
  color: var(--primary);
}

.intro-text p {
  font-size: 15px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 16px;
}

.intro-text p:last-child {
  margin-bottom: 0;
}

.intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.intro-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
}

.intro-tags .tag i {
  font-size: 12px;
}

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

.intro-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius);
}

.intro-image .img-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ========== Category Cards ========== */
.cat-cards {
  padding: 56px 0 80px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  display: flex;
  flex-direction: column;
}

.cat-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-3px);
}

.cat-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.cat-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.cat-card:hover .card-img img {
  transform: scale(1.03);
}

.cat-card .card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11, 58, 52, 0.35) 100%);
  pointer-events: none;
}

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

.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark-2);
  margin-bottom: 10px;
  line-height: 1.4;
}

.card-body p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 14px;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  transition: gap 0.2s;
}

.card-link:hover {
  gap: 10px;
  text-decoration: underline;
}

.card-link i {
  font-size: 12px;
}

/* ========== Stats ========== */
.cat-stats {
  background: var(--dark);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cat-stats::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(232, 163, 59, 0.08);
}

.cat-stats::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: 10%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

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

.stat-item {
  text-align: center;
  padding: 16px 8px;
}

.stat-item .stat-num {
  font-size: 38px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: 1px;
}

.stat-item .stat-num span {
  color: var(--accent);
  font-size: 32px;
}

.stat-item .stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 8px;
}

/* ========== Steps ========== */
.cat-steps {
  padding: 72px 0 80px;
  background: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 16px;
}

.step-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.3s, border-color 0.3s;
  text-align: center;
}

.step-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.step-num {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}

.step-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--dark-2);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ========== CTA ========== */
.cat-cta {
  padding: 64px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #12806F 55%, var(--dark) 100%);
  position: relative;
  overflow: hidden;
}

.cat-cta::before {
  content: "";
  position: absolute;
  top: -40px;
  left: -40px;
  width: 140px;
  height: 140px;
  border: 2px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.cat-cta::after {
  content: "";
  position: absolute;
  bottom: -60px;
  right: 5%;
  width: 180px;
  height: 180px;
  border: 2px solid rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-inner h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.4;
}

.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn-large {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  color: var(--primary);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 36px;
  border-radius: var(--radius-btn);
  min-width: 200px;
  min-height: 48px;
  justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.cta-btn-large i {
  font-size: 14px;
}

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

.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-item:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-2);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary i {
  font-size: 14px;
  color: var(--primary);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item[open] summary i {
  transform: rotate(180deg);
}

.faq-item .faq-a {
  font-size: 14px;
  color: #5A6562;
  line-height: 1.8;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .main-nav a {
    padding: 8px 12px;
    font-size: 14px;
  }

  .search-box {
    width: 160px;
  }

  .card-grid {
    gap: 20px;
  }

  .stats-grid {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  :root {
    --spacer: 56px;
  }

  .container {
    padding: 0 16px;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    gap: 4px;
    display: none;
    z-index: 99;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 6px;
  }

  .main-nav a:hover {
    background: var(--bg-gray);
  }

  .main-nav a.active {
    background: var(--primary-light);
    color: var(--primary);
  }

  .main-nav a.active::after {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .search-box {
    display: none;
  }

  .cta-btn {
    padding: 10px 16px;
    font-size: 13px;
  }

  .page-hero {
    min-height: 200px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

  .page-hero .hero-sub {
    font-size: 14px;
  }

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

  .intro-image img {
    height: 220px;
  }

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

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

  .step-card {
    padding: 24px 20px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .cta-inner p {
    font-size: 14px;
  }

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

@media (max-width: 520px) {
  .logo span:last-child {
    font-size: 17px;
  }

  .logo-icon {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }

  .header-inner {
    gap: 12px;
  }

  .cta-btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  .page-hero h1 {
    font-size: 24px;
  }

  .page-hero .hero-sub {
    font-size: 13px;
  }

  .section-head h2 {
    font-size: 22px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-item .stat-num {
    font-size: 28px;
  }

  .stat-item .stat-num span {
    font-size: 24px;
  }

  .stat-item .stat-label {
    font-size: 13px;
  }

  .faq-item {
    padding: 18px 16px;
  }

  .cta-btn-large {
    min-width: 180px;
    padding: 12px 24px;
  }
}

/* roulang page: article */
:root {
    --primary: #0C6B5E;
    --primary-dark: #0A5C50;
    --accent: #E8A33B;
    --accent-light: #FFF4E0;
    --accent-text: #9A6B00;
    --deep: #0B3A34;
    --text-dark: #10312B;
    --text-title: #143D36;
    --text-body: #464D4C;
    --text-sub: #8A9391;
    --text-muted: #9CA3AF;
    --border: #E5E7EB;
    --border-light: #ECEFEE;
    --bg-soft: #F8F9F8;
    --bg-muted: #F3F5F4;
    --white: #fff;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-pill: 999px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-cta: 0 6px 20px rgba(232,163,59,0.4);
    --transition: 0.2s ease;
    --content-width: 1200px;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
    background: var(--white);
    color: var(--text-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
img,
svg {
    display: block;
    max-width: 100%;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}
button,
input {
    font-family: inherit;
    font-size: 100%;
}
button {
    border: none;
    cursor: pointer;
}
::selection {
    background: rgba(12, 107, 94, 0.15);
    color: var(--text-dark);
}
.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 24px;
}
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 1000;
    background: var(--primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 0 var(--radius-sm) 0;
    font-size: 14px;
}
.skip-link:focus {
    left: 0;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
}
.logo span {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--text-dark);
    white-space: nowrap;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}
.main-nav a {
    font-size: 15px;
    font-weight: 500;
    color: #3F4A47;
    padding: 8px 2px;
    position: relative;
    white-space: nowrap;
}
.main-nav a:hover {
    color: var(--primary);
}
.main-nav a.active {
    color: var(--primary);
    font-weight: 600;
}
.main-nav a.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-muted);
    border-radius: 18px;
    padding: 0 14px;
    height: 40px;
    width: 200px;
    gap: 8px;
    transition: box-shadow var(--transition), background var(--transition);
}
.search-box:focus-within {
    background: #fff;
    box-shadow: 0 0 0 2px rgba(12, 107, 94, 0.15);
}
.search-box i {
    color: var(--text-muted);
    font-size: 14px;
}
.search-box input {
    border: none;
    background: transparent;
    outline: none;
    width: 100%;
    font-size: 14px;
    color: #3F4A47;
}
.search-box input::placeholder {
    color: var(--text-muted);
}
.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    height: 40px;
    padding: 0 22px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.cta-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(12, 107, 94, 0.25);
}
.cta-btn:active {
    transform: translateY(0);
    box-shadow: none;
}
.menu-toggle {
    display: none;
    background: rgba(0, 0, 0, 0.04);
    border-radius: var(--radius-sm);
    font-size: 18px;
    color: #3F4A47;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
}
.menu-toggle:hover {
    background: rgba(0, 0, 0, 0.08);
}
.menu-toggle:focus-visible,
.cta-btn:focus-visible,
.main-nav a:focus-visible,
.btn-ghost:focus-visible,
.cta-btn-large:focus-visible,
.related-card:focus-visible,
.article-content a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.article-section {
    padding: 48px 0 72px;
    background: var(--white);
}
.article-container {
    max-width: 780px;
    margin: 0 auto;
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    font-size: 14px;
    color: var(--text-sub);
    margin-bottom: 24px;
}
.breadcrumb a {
    color: var(--text-sub);
}
.breadcrumb a:hover {
    color: var(--primary);
}
.breadcrumb .sep {
    color: #C4CAC8;
}
.breadcrumb .current {
    color: #3F4A47;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}
.article-header {
    margin-bottom: 32px;
}
.article-header h1 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-dark);
    margin-bottom: 18px;
    overflow-wrap: break-word;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: var(--text-sub);
    align-items: center;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.meta-item i {
    color: #A0A8A6;
    font-size: 14px;
}
.category-badge {
    display: inline-block;
    background: var(--accent-light);
    color: var(--accent-text);
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-pill);
    padding: 2px 14px;
}
.article-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-body);
    overflow-wrap: break-word;
}
.article-content p {
    margin-bottom: 24px;
}
.article-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 40px 0 16px;
    line-height: 1.4;
}
.article-content h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text-title);
    margin: 32px 0 12px;
    line-height: 1.5;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-title);
    margin: 24px 0 10px;
}
.article-content img {
    width: 100%;
    border-radius: var(--radius-md);
    margin: 16px 0;
}
.article-content figure {
    margin: 24px 0;
}
.article-content figcaption {
    font-size: 13px;
    color: var(--text-sub);
    text-align: center;
    margin-top: 8px;
}
.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: #F5F8F7;
    padding: 16px 20px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: #3F4A47;
    margin: 24px 0;
}
.article-content a {
    color: var(--primary);
    border-bottom: 1px solid rgba(12, 107, 94, 0.25);
}
.article-content a:hover {
    border-bottom-color: var(--primary);
}
.article-content ul,
.article-content ol {
    margin: 0 0 24px 20px;
    padding-left: 4px;
}
.article-content li {
    margin-bottom: 8px;
}
.article-content li::marker {
    color: var(--primary);
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
    display: block;
    overflow-x: auto;
}
.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
    min-width: 120px;
}
.article-content table th {
    background: #F5F8F7;
    font-weight: 600;
    color: var(--text-title);
}
.article-content code {
    background: var(--bg-muted);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 0.9em;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}
.article-content pre {
    background: var(--deep);
    color: #EAF2EF;
    padding: 20px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 24px 0;
    line-height: 1.6;
}
.article-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}
.article-empty {
    text-align: center;
    padding: 60px 24px;
    border: 1px dashed #D9DEDC;
    border-radius: var(--radius-lg);
    background: #FAFBFB;
}
.empty-circle {
    width: 72px;
    height: 72px;
    border: 2px solid #CAD1CF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: var(--text-sub);
}
.article-empty p {
    font-size: 18px;
    color: #5A6562;
    margin-bottom: 24px;
    font-weight: 500;
}
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    height: 44px;
    padding: 0 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-secondary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(12, 107, 94, 0.25);
}
.related-section {
    padding: 64px 0;
    background: var(--bg-soft);
}
.section-head {
    margin-bottom: 32px;
}
.section-head h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 12px;
}
.section-head h2::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--primary);
    border-radius: 2px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 14px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.related-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}
.related-card .thumb {
    width: 96px;
    height: 72px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    background: #E8ECEA;
}
.related-card .info {
    min-width: 0;
}
.related-card .info h3 {
    font-size: 15px;
    font-weight: 600;
    color: #3F4A47;
    line-height: 1.45;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-card:hover .info h3 {
    color: var(--primary);
}
.related-card .info time {
    font-size: 13px;
    color: var(--text-sub);
}
.related-footer {
    margin-top: 36px;
    text-align: center;
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #E8ECEA;
    color: #3F4A47;
    font-size: 15px;
    font-weight: 500;
    height: 48px;
    padding: 0 32px;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-ghost:hover {
    background: #D9E0DD;
    color: var(--text-dark);
    transform: translateY(-1px);
}
.cta-section {
    background: linear-gradient(135deg, #0B3A34 0%, #0C6B5E 60%, #E8A33B 170%);
    padding: 56px 0;
}
.cta-inner {
    text-align: center;
    color: #fff;
    max-width: 720px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}
.cta-inner p {
    font-size: 16px;
    opacity: 0.92;
    margin-bottom: 28px;
}
.cta-btn-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--text-dark);
    font-size: 16px;
    font-weight: 600;
    min-height: 48px;
    padding: 0 38px;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.cta-btn-large:hover {
    background: #F0B250;
    transform: translateY(-2px);
    box-shadow: var(--shadow-cta);
}
.site-footer {
    background: var(--deep);
    color: #BFCFCB;
    padding: 56px 0 28px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}
.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #8FB0A9;
    max-width: 280px;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #EAF2EF;
    margin-bottom: 14px;
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-links a {
    font-size: 14px;
    color: #8FB0A9;
    transition: color var(--transition);
}
.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 24px;
    text-align: center;
}
.footer-bottom p {
    font-size: 14px;
    color: #7E9C96;
}
@media (max-width: 1024px) {
    .header-inner {
        gap: 16px;
    }
    .search-box {
        width: 160px;
    }
    .main-nav {
        gap: 20px;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .site-header {
        position: sticky;
    }
    .header-inner {
        height: 64px;
    }
    .main-nav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
        padding: 8px 16px;
        display: none;
        margin-left: 0;
    }
    .main-nav.open {
        display: flex;
    }
    .main-nav a {
        padding: 12px 4px;
        border-bottom: 1px solid #F3F5F4;
        font-size: 16px;
    }
    .main-nav a:last-child {
        border-bottom: none;
    }
    .main-nav a.active::after {
        display: none;
    }
    .main-nav a.active {
        color: var(--primary);
        font-weight: 600;
        background: rgba(12, 107, 94, 0.06);
        padding-left: 12px;
        padding-right: 12px;
        border-radius: var(--radius-sm);
    }
    .menu-toggle {
        display: inline-flex;
    }
    .search-box {
        width: 40px;
        padding: 0;
        justify-content: center;
        background: rgba(0, 0, 0, 0.04);
        border-radius: 50%;
        flex-shrink: 0;
    }
    .search-box input {
        display: none;
    }
    .header-actions {
        gap: 10px;
    }
    .cta-btn {
        display: none;
    }
    .article-section {
        padding: 32px 0 56px;
    }
    .article-header h1 {
        font-size: 26px;
    }
    .article-meta {
        gap: 14px;
    }
    .article-content {
        font-size: 15.5px;
    }
    .related-section {
        padding: 48px 0;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .related-card {
        padding: 12px;
    }
    .cta-section {
        padding: 48px 0;
    }
    .cta-inner h2 {
        font-size: 22px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 520px) {
    .article-header h1 {
        font-size: 23px;
    }
    .article-meta {
        gap: 12px;
        font-size: 13px;
    }
    .breadcrumb {
        font-size: 13px;
        gap: 6px;
    }
    .breadcrumb .current {
        max-width: 200px;
    }
    .related-card .thumb {
        width: 88px;
        height: 66px;
    }
    .cta-btn-large {
        width: 100%;
        padding: 0 20px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 375px) {
    .article-header h1 {
        font-size: 21px;
    }
    .article-meta {
        gap: 8px;
    }
    .meta-item {
        font-size: 12.5px;
    }
    .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    .logo span {
        font-size: 17px;
    }
    .related-card .thumb {
        width: 82px;
        height: 62px;
    }
}
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
        scroll-behavior: auto !important;
    }
}