/* roulang page: index */
:root {
  --primary: #1B7A43;
  --primary-light: #5AC87B;
  --primary-gradient: linear-gradient(135deg, #1B7A43, #5AC87B);
  --bg: #F8F9F7;
  --dark: #1F2A24;
  --text: #1F2A24;
  --text-secondary: #58655D;
  --text-muted: #8A938C;
  --border: rgba(31, 42, 36, 0.08);
  --shadow: 0 4px 20px rgba(31, 42, 36, 0.06);
  --shadow-hover: 0 8px 24px rgba(31, 42, 36, 0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --amber: #F0B429;
  --red: #E74C3C;
  --white: #FFFFFF;
  --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section-head { margin-bottom: 40px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(27, 122, 67, 0.08);
  padding: 6px 14px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.section-tag::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
}
.section-head h2 {
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 700;
  color: var(--text);
  margin-top: 14px;
  line-height: 1.3;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: var(--primary-gradient);
}
.section-head p { color: var(--text-secondary); margin-top: 10px; font-size: 15px; max-width: 640px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(27, 122, 67, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(27, 122, 67, 0.35); color: #fff; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(27, 122, 67, 0.2); }
.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover { background: rgba(27, 122, 67, 0.06); border-color: var(--primary); transform: translateY(-1px); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.25); border-color: #fff; color: #fff; transform: translateY(-1px); }
.btn-light {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}
.btn-light:hover { background: #f0faf3; transform: translateY(-2px); color: var(--primary); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2); }
.btn-lg { padding: 16px 40px; font-size: 17px; border-radius: 12px; }
.btn-sm { padding: 9px 20px; font-size: 14px; border-radius: 8px; }
.btn-block { width: 100%; }
/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 249, 247, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(31, 42, 36, 0.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--primary-gradient);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(27, 122, 67, 0.3);
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.logo-text em { font-style: normal; color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}
.nav-link:hover { color: var(--primary); background: rgba(27, 122, 67, 0.06); }
.nav-link::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  border-radius: 1px;
  background: var(--primary-gradient);
  opacity: 0;
  transform: scaleX(0.5);
  transition: var(--transition);
}
.nav-link:hover::after,
.nav-link.active::after { opacity: 1; transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 16px;
  width: 220px;
  transition: var(--transition);
}
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12); }
.search-box svg { color: var(--text-muted); flex-shrink: 0; }
.search-box input { border: none; outline: none; background: transparent; font-size: 14px; color: var(--text); width: 100%; }
.search-box input::placeholder { color: var(--text-muted); }
.search-box kbd {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: inherit;
  white-space: nowrap;
}
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; border-radius: 8px; }
.mobile-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 1px; transition: var(--transition); }
.mobile-menu { display: none; background: var(--bg); border-bottom: 1px solid var(--border); padding: 12px 0; }
.mobile-menu a {
  display: block;
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover, .mobile-menu a.active { color: var(--primary); background: rgba(27, 122, 67, 0.04); }
/* Hero */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background-color: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(31, 42, 36, 0.92) 0%, rgba(27, 122, 67, 0.55) 60%, rgba(90, 200, 123, 0.2) 100%);
}
.hero-inner { position: relative; z-index: 2; width: 100%; display: flex; flex-direction: column; gap: 48px; }
.hero-content { max-width: 680px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 20px;
  backdrop-filter: blur(8px);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-tag::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--amber);
  animation: pulse 1.6s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.hero-title span { color: var(--primary-light); }
.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 600px;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.badge-item {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  color: #fff;
  transition: var(--transition);
}
.badge-item:hover { background: rgba(255, 255, 255, 0.2); transform: translateY(-2px); }
.badge-num {
  display: block;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  font-feature-settings: "tnum";
  line-height: 1.2;
  margin-bottom: 4px;
  background: linear-gradient(135deg, #fff, #d2f0d8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.badge-label { font-size: 13px; color: rgba(255, 255, 255, 0.8); }
/* Compare */
.compare { padding: clamp(48px, 10vw, 96px) 0; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 860px; margin: 0 auto; }
.compare-col {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}
.compare-col:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.compare-col.premium {
  background: linear-gradient(180deg, rgba(27, 122, 67, 0.03), rgba(90, 200, 123, 0.06)), #fff;
  border: 2px solid var(--primary);
  box-shadow: 0 8px 30px rgba(27, 122, 67, 0.15);
}
.compare-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 18px;
  border-radius: 14px;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(27, 122, 67, 0.3);
  letter-spacing: 0.5px;
}
.compare-header { text-align: center; margin-bottom: 24px; }
.compare-header h3 { font-size: 24px; font-weight: 700; color: var(--text); }
.compare-header p { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }
.compare-price {
  font-size: 40px;
  font-weight: 800;
  color: var(--text);
  margin-top: 12px;
  font-feature-settings: "tnum";
  line-height: 1;
}
.compare-price span { font-size: 14px; font-weight: 400; color: var(--text-muted); }
.compare-list { list-style: none; margin-bottom: 28px; }
.compare-list li {
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.compare-list li:last-child { border-bottom: none; }
.compare-list li::before {
  content: '✓';
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(27, 122, 67, 0.1);
  color: var(--primary);
  font-weight: 700;
  font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.compare-list li.no::before { content: '—'; background: rgba(138, 147, 140, 0.1); color: var(--text-muted); }
/* Levels */
.levels { padding: clamp(48px, 10vw, 96px) 0; background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.level-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.level-card {
  background: var(--bg);
  border-radius: 20px;
  padding: 32px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.level-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: var(--transition);
}
.level-card:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.level-card:hover::before { opacity: 1; }
.level-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: var(--primary-gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 4px 14px rgba(27, 122, 67, 0.25);
}
.level-icon.silver { background: linear-gradient(135deg, #7A8B99, #C0C8CF); box-shadow: 0 4px 14px rgba(122, 139, 153, 0.25); }
.level-icon.gold { background: linear-gradient(135deg, #D9A514, #F0B429); box-shadow: 0 4px 14px rgba(240, 180, 41, 0.3); }
.level-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.level-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.progress-track {
  height: 8px;
  background: #E8ECE8;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 12px;
}
.progress-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--primary-gradient);
  transition: width 0.6s ease;
}
.level-meta { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-muted); font-feature-settings: "tnum"; }
/* News */
.news { padding: clamp(48px, 10vw, 96px) 0; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: rgba(27, 122, 67, 0.2); }
.news-card-media {
  height: 180px;
  background: linear-gradient(135deg, #E8ECE8, #F0F3EF);
  position: relative;
  overflow: hidden;
}
.news-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-card:hover .news-card-media img { transform: scale(1.04); }
.news-card-media .placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 40px;
  color: var(--text-muted);
  background: linear-gradient(135deg, #EDF1ED, #E0E6E0);
}
.news-card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(27, 122, 67, 0.08);
  padding: 3px 12px;
  border-radius: 12px;
  align-self: flex-start;
  margin-bottom: 12px;
}
.news-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 54px;
}
.news-card-title a { color: inherit; }
.news-card-title a:hover { color: var(--primary); }
.news-card-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-feature-settings: "tnum";
}
.news-card-meta a { font-weight: 600; color: var(--primary); font-size: 13px; }
/* Empty state */
.empty-state {
  grid-column: 1 / -1;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 20px;
  text-align: center;
  background: rgba(255,255,255,0.6);
}
.empty-state svg { color: var(--text-muted); margin-bottom: 12px; }
.empty-state p { color: var(--text-muted); font-size: 16px; margin-bottom: 16px; }
/* VIP */
.vip { padding: clamp(48px, 10vw, 96px) 0; background: var(--dark); }
.vip .section-head h2 { color: #fff; }
.vip .section-tag { background: rgba(255,255,255,0.1); color: var(--primary-light); }
.vip .section-tag::before { background: var(--primary-light); }
.vip .section-head p { color: rgba(255,255,255,0.7); }
.vip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.vip-card { background: rgba(255,255,255,0.06); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid rgba(255,255,255,0.1); transition: var(--transition); }
.vip-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.2); box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
.vip-media { position: relative; height: 200px; overflow: hidden; }
.vip-media img { width: 100%; height: 100%; object-fit: cover; }
.vip-badge {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--amber);
  color: #1F2A24;
  font-size: 12px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 10px;
  letter-spacing: 0.5px;
  z-index: 2;
}
.vip-overlay {
  position: absolute;
  inset: 0;
  background: rgba(31, 42, 36, 0.75);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  opacity: 0;
  transition: var(--transition);
}
.vip-card:hover .vip-overlay { opacity: 1; }
.vip-lock { font-size: 28px; color: #fff; }
.vip-info { padding: 20px; }
.vip-info h3 { font-size: 16px; font-weight: 600; color: #fff; line-height: 1.5; margin-bottom: 6px; }
.vip-info p { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.6; }
/* FAQ */
.faq { padding: clamp(48px, 10vw, 96px) 0; }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(27, 122, 67, 0.2); }
.faq-item.open { box-shadow: var(--shadow); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-item.open .faq-question { color: var(--primary); background: var(--bg); }
.faq-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(27, 122, 67, 0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--primary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
/* CTA */
.cta { padding: clamp(48px, 10vw, 96px) 0; }
.cta-inner {
  background: var(--primary-gradient);
  border-radius: var(--radius-lg);
  padding: clamp(40px, 6vw, 64px);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-inner::before {
  content: '';
  position: absolute;
  top: -50px; right: -50px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-inner::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.cta-title { font-size: clamp(26px, 4vw, 38px); font-weight: 800; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-subtitle { font-size: 16px; color: rgba(255,255,255,0.9); margin-bottom: 32px; position: relative; z-index: 1; }
.cta-points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
  position: relative; z-index: 1;
}
.cta-points span {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(6px);
}
.cta-btn { position: relative; z-index: 1; }
/* Footer */
.site-footer { background: var(--dark); color: rgba(255,255,255,0.8); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 16px; color: rgba(255,255,255,0.6); max-width: 360px; }
.footer-brand .footer-logo-wrap { display: flex; align-items: center; gap: 12px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; letter-spacing: 0.5px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 14px; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.footer-bottom {
  padding: 24px 0 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.45); }
.footer-bottom a:hover { color: var(--primary-light); }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
/* Responsive */
@media (max-width: 1024px) {
  .hero { min-height: 520px; }
  .hero-badges { grid-template-columns: repeat(2, 1fr); }
  .level-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .vip-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .search-box { width: 180px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .main-nav { display: none; }
  .search-box { display: none; }
  .header-actions .btn-sm { display: none; }
  .mobile-toggle { display: flex; }
  .mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .mobile-toggle.active span:nth-child(2) { opacity: 0; }
  .mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-menu.open { display: block; }
  .hero { min-height: 460px; padding: 100px 0 60px; }
  .hero-badges { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .badge-item { padding: 14px 12px; }
  .compare-grid { grid-template-columns: 1fr; max-width: 100%; }
  .level-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .vip-grid { grid-template-columns: 1fr; }
  .cta-points { flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 15px; }
  .hero-badges { grid-template-columns: 1fr 1fr; }
  .badge-num { font-size: 22px; }
  .btn-lg { padding: 14px 28px; font-size: 15px; }
  .compare-col { padding: 28px 20px; }
  .level-card { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
}
/* Accessibility */
:focus-visible {
  outline: 3px solid rgba(27, 122, 67, 0.4);
  outline-offset: 2px;
}
.nav-link:focus-visible, .btn:focus-visible, .faq-question:focus-visible { outline: 3px solid rgba(27, 122, 67, 0.4); outline-offset: 2px; }

/* roulang page: category1 */
:root {
            --primary: #1B7A43;
            --primary-dark: #115C31;
            --primary-light: #5AC87B;
            --accent: #F0B429;
            --danger: #E4572E;
            --bg: #F8F9F7;
            --card-bg: #FFFFFF;
            --text: #1F2A24;
            --text-light: #58655D;
            --text-muted: #8A938C;
            --border: rgba(31, 42, 36, 0.08);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(31, 42, 36, 0.06);
            --shadow-hover: 0 8px 24px rgba(31, 42, 36, 0.12);
            --gradient: linear-gradient(135deg, #1B7A43, #5AC87B);
            --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --spacing-section: clamp(48px, 10vw, 96px);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all 0.25s ease;
            border: 1.5px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(27, 122, 67, 0.25);
        }

        .btn-primary:hover {
            box-shadow: 0 8px 24px rgba(27, 122, 67, 0.35);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(27, 122, 67, 0.2);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(248, 249, 247, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            height: 72px;
            gap: 28px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 122, 67, 0.3);
        }

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.3px;
        }

        .brand-name em {
            font-style: normal;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            margin-left: 1px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
            margin: 0 auto;
        }

        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 2px;
            transition: color 0.2s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.25s ease;
        }

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

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

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

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

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

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border-radius: 20px;
            padding: 7px 14px;
            width: 200px;
            border: 1px solid var(--border);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.1);
        }

        .search-box svg {
            flex-shrink: 0;
            color: var(--text-muted);
        }

        .search-box input {
            width: 100%;
            font-size: 13px;
            color: var(--text);
            background: transparent;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-kbd {
            flex-shrink: 0;
            font-size: 10px;
            color: var(--text-muted);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 2px 5px;
            font-weight: 600;
        }

        .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .icon-btn:hover {
            background: rgba(31, 42, 36, 0.06);
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            position: relative;
            min-height: 340px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            isolation: isolate;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(31, 42, 36, 0.88) 0%, rgba(27, 122, 67, 0.55) 100%);
            z-index: -1;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .category-hero .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 18px;
        }

        .category-hero .hero-breadcrumb a:hover {
            color: var(--primary-light);
        }

        .category-hero .hero-breadcrumb span {
            color: rgba(255, 255, 255, 0.4);
        }

        .category-hero .hero-breadcrumb .current {
            color: rgba(255, 255, 255, 0.85);
        }

        .category-hero h1 {
            font-size: clamp(30px, 4.5vw, 48px);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .category-hero .hero-sub {
            font-size: clamp(15px, 2vw, 17px);
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.7;
        }

        .hero-tags {
            display: flex;
            gap: 10px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }

        .hero-tag svg {
            width: 14px;
            height: 14px;
        }

        /* ===== 特色内容块 ===== */
        .features-section {
            padding: var(--spacing-section) 0;
        }

        .section-header {
            margin-bottom: 48px;
            max-width: 680px;
        }

        .section-header .section-line {
            display: block;
            width: 40px;
            height: 4px;
            background: var(--gradient);
            border-radius: 4px;
            margin-bottom: 20px;
        }

        .section-header h2 {
            font-size: clamp(24px, 3.5vw, 34px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: 20px;
            padding: 36px 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 122, 67, 0.2);
        }

        .feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            margin-bottom: 22px;
            box-shadow: 0 6px 16px rgba(27, 122, 67, 0.25);
        }

        .feature-icon svg {
            width: 26px;
            height: 26px;
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }

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

        /* ===== 内容卡片 ===== */
        .content-cards-section {
            padding: var(--spacing-section) 0;
            background: #fff;
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .content-card {
            background: var(--card-bg);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: #E8ECE8;
        }

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

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

        .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(31, 42, 36, 0.06));
        }

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

        .card-tag {
            display: inline-flex;
            align-self: flex-start;
            background: rgba(27, 122, 67, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.2px;
        }

        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin: 14px 0 8px;
            transition: color 0.2s ease;
        }

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

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

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-muted);
        }

        .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .card-meta svg {
            width: 14px;
            height: 14px;
        }

        .card-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
        }

        .content-card:hover .card-arrow {
            background: var(--primary);
            color: #fff;
            transform: translateX(2px);
        }

        /* ===== 数据概览 ===== */
        .stats-section {
            background: #1F2A24;
            padding: 70px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(90, 200, 123, 0.25), transparent 70%);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

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

        .stat-number {
            font-size: clamp(30px, 5vw, 48px);
            font-weight: 800;
            background: linear-gradient(135deg, #5AC87B, #fff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            font-feature-settings: "tnum";
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            margin-top: 8px;
            font-weight: 400;
        }

        .stat-divider {
            width: 2px;
            height: 50px;
            background: rgba(255, 255, 255, 0.1);
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--spacing-section) 0;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(27, 122, 67, 0.2);
        }

        .faq-item.open {
            border-color: rgba(27, 122, 67, 0.25);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: #F8F9F7;
        }

        .faq-question:focus {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: 16px;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(27, 122, 67, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 600;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            border-top: 1px solid transparent;
            transition: border-color 0.3s ease;
        }

        .faq-item.open .faq-answer-inner {
            border-color: var(--border);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0 0 var(--spacing-section);
        }

        .cta-panel {
            background: var(--gradient);
            border-radius: var(--radius-lg);
            padding: 56px 56px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(31, 42, 36, 0.12);
        }

        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 680px;
        }

        .cta-panel h2 {
            font-size: clamp(24px, 4vw, 32px);
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .cta-panel .cta-desc {
            color: rgba(255, 255, 255, 0.88);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .cta-points {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .cta-point {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.92);
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        .cta-point svg {
            width: 14px;
            height: 14px;
            color: var(--primary-light);
        }

        .cta-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1F2A24;
            color: #fff;
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
        }

        .footer-logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo-wrap .logo-icon {
            box-shadow: none;
        }

        .footer-logo-wrap .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }

        .footer-logo-wrap .logo-text em {
            font-style: normal;
            color: var(--primary-light);
            font-size: 14px;
            font-weight: 600;
            margin-left: 2px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: all 0.25s ease;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 18px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col ul a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-contact p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            margin-bottom: 10px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-actions .search-box {
                width: 160px;
            }

            .main-nav {
                gap: 20px;
            }

            .hero-tag {
                padding: 5px 12px;
                font-size: 12px;
            }

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

            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

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

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 62px;
                gap: 16px;
            }

            .main-nav {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                background: rgba(248, 249, 247, 0.97);
                backdrop-filter: blur(12px);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                margin: 0;
                box-shadow: 0 20px 40px rgba(31, 42, 36, 0.08);
            }

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

            .nav-link {
                display: block;
                width: 100%;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
            }

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

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

            .header-actions .search-box {
                width: 42px;
                padding: 7px;
                justify-content: center;
            }

            .header-actions .search-box input,
            .header-actions .search-kbd {
                display: none;
            }

            .header-actions .search-box svg {
                margin: 0;
            }

            .header-actions .btn-primary {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .category-hero {
                min-height: 300px;
            }

            .category-hero .container {
                padding-top: 40px;
                padding-bottom: 40px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }

            .cards-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }

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

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

            .footer-brand {
                grid-column: 1 / -1;
            }

            .cta-panel {
                padding: 40px 28px;
            }

            .cta-points {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                gap: 10px;
            }

            .brand-name {
                font-size: 17px;
            }

            .brand-name em {
                font-size: 12px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

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

            .hero-tags {
                gap: 8px;
            }

            .hero-tag {
                padding: 4px 10px;
                font-size: 11px;
            }

            .section-header h2 {
                font-size: 24px;
            }

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

            .card-img {
                height: 170px;
            }

            .stats-section {
                padding: 50px 0;
            }

            .stat-number {
                font-size: 32px;
            }

            .stat-label {
                font-size: 12px;
            }

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

            .cta-btns .btn {
                width: 100%;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 380px) {
            .header-actions .icon-btn:nth-child(2) {
                display: none;
            }
        }

/* roulang page: article */
:root {
  --primary: #1B7A43;
  --primary-dark: #145C32;
  --secondary: #5AC87B;
  --accent: #F0B429;
  --bg: #F8F9F7;
  --card-bg: #ffffff;
  --text-main: #1F2A24;
  --text-secondary: #58655D;
  --text-light: #8A938C;
  --border-color: rgba(31, 42, 36, 0.08);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(31, 42, 36, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 42, 36, 0.12);
  --bg-gradient: linear-gradient(135deg, #1B7A43 0%, #5AC87B 100%);
  --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "tnum";
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(248, 249, 247, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg-gradient);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  flex-shrink: 0;
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.logo-text em {
  font-style: normal;
  color: var(--primary);
  font-weight: 700;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: color .2s ease, background .2s ease;
}
.nav-link:hover { color: var(--primary); background: rgba(27, 122, 67, 0.06); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  border-radius: 1px;
  background: var(--primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 7px 14px;
  width: 200px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12);
}
.search-box svg { width: 16px; height: 16px; color: var(--text-light); flex-shrink: 0; }
.search-box input {
  border: none; outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--text-main);
  width: 100%;
}
.search-box .search-kbd {
  font-size: 11px;
  color: var(--text-light);
  background: var(--bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1px 5px;
  white-space: nowrap;
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  padding: 10px 20px;
  border: none;
  transition: all .25s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--bg-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(27, 122, 67, 0.25);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(27, 122, 67, 0.35);
  color: #fff;
}
.btn-sm { padding: 6px 14px; font-size: 14px; border-radius: 8px; }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(27, 122, 67, 0.06);
  transform: translateY(-1px);
}
.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  border: none;
  background: rgba(27, 122, 67, 0.08);
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.menu-toggle svg { width: 20px; height: 20px; }
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  padding: 16px;
  z-index: 999;
  box-shadow: var(--shadow-md);
}
.mobile-menu.open { display: block; }
.mobile-menu .mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu .mobile-nav-links a {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  color: var(--text-main);
  border-radius: 10px;
  font-weight: 500;
}
.mobile-menu .mobile-nav-links a:hover { background: var(--bg); color: var(--primary); }
.mobile-menu .mobile-nav-links a.active { background: rgba(27, 122, 67, 0.08); color: var(--primary); font-weight: 600; }
.mobile-menu .mobile-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 14px;
  margin-top: 10px;
}
.mobile-menu .mobile-search input {
  border: none; outline: none;
  background: transparent;
  font-size: 14px;
  width: 100%;
}
.breadcrumb-wrap {
  padding-top: 100px;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 0;
  font-size: 14px;
  color: var(--text-light);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #C4C9C4; }
.breadcrumb .current { color: var(--text-secondary); font-weight: 500; }
.article-header {
  background: #fff;
  padding: 40px 0 32px;
}
.article-header-inner {
  max-width: 860px;
  margin: 0 auto;
}
.article-header h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  color: var(--text-main);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  font-size: 14px;
  color: var(--text-secondary);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item svg { width: 16px; height: 16px; color: var(--text-light); }
.article-category {
  display: inline-flex;
  align-items: center;
  background: rgba(27, 122, 67, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}
.article-body {
  padding: 40px 0 64px;
  background: var(--bg);
}
.article-body-inner {
  max-width: 860px;
  margin: 0 auto;
}
.article-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-main);
}
.article-content p { margin-bottom: 28px; }
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 48px 0 20px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 36px 0 16px;
  line-height: 1.4;
}
.article-content img {
  max-width: 100%;
  border-radius: 12px;
  margin: 24px 0;
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(27, 122, 67, 0.04);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  color: var(--text-secondary);
  font-style: italic;
  margin: 24px 0;
}
.article-content code {
  background: #F0F1EF;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover { background: rgba(27, 122, 67, 0.08); }
.article-content ul,
.article-content ol {
  margin: 0 0 28px 24px;
}
.article-content ul li,
.article-content ol li { margin-bottom: 8px; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  text-align: left;
}
.article-content th {
  background: #F7F9F6;
  font-weight: 600;
}
.empty-state {
  text-align: center;
  padding: 80px 24px;
  border: 2px dashed rgba(31, 42, 36, 0.15);
  border-radius: var(--radius-lg);
  background: #fff;
}
.empty-state svg { width: 64px; height: 64px; color: var(--text-light); margin-bottom: 16px; }
.empty-state p { font-size: 18px; color: var(--text-secondary); margin-bottom: 24px; }
.related-section {
  padding: 64px 0;
  background: #fff;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
  margin-bottom: 32px;
}
.section-title::before {
  content: "";
  width: 4px;
  height: 24px;
  border-radius: 2px;
  background: var(--primary);
  flex-shrink: 0;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.article-card {
  background: var(--bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
  display: block;
  color: inherit;
}
.article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: inherit;
}
.article-card .card-img {
  aspect-ratio: 16 / 10;
  background-size: cover;
  background-position: center;
  background-color: #E8ECE8;
  position: relative;
  overflow: hidden;
}
.article-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.article-card:hover .card-img img { transform: scale(1.03); }
.article-card .card-body { padding: 20px; }
.article-card .card-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(27, 122, 67, 0.08);
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.article-card .card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-card .card-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.article-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
}
.related-empty {
  text-align: center;
  padding: 48px 24px;
  background: var(--bg);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-color);
}
.related-empty p { color: var(--text-light); font-size: 16px; }
.back-entry {
  text-align: center;
  padding: 32px 0 64px;
  background: #fff;
}
.back-entry .btn { min-width: 160px; }
.cta-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1B7A43 0%, #3E9E5C 100%);
  padding: 72px 0;
  color: #fff;
  text-align: center;
}
.cta-section h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-section .cta-desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-points {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 36px;
}
.cta-points span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.95);
}
.cta-points span::before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 12px;
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  color: var(--primary-dark);
}
.site-footer {
  background: #1F2A24;
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  transition: background .2s, color .2s;
}
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  transition: color .2s;
}
.footer-col ul a:hover { color: var(--secondary); }
.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
  gap: 8px;
}
@media (max-width: 1024px) {
  .search-box { width: 160px; }
  .main-nav .nav-link { padding: 8px 10px; font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .search-box { display: none; }
  .header-inner { gap: 12px; height: 60px; }
  .nav-actions .btn-sm { padding: 6px 12px; font-size: 13px; }
  .mobile-menu { top: 60px; }
  .breadcrumb-wrap { padding-top: 84px; }
  .article-header { padding: 28px 0 24px; }
  .article-header h1 { font-size: 26px; }
  .article-body { padding: 24px 0 48px; }
  .article-body-inner { max-width: 100%; }
  .article-content { font-size: 16px; }
  .article-content p { margin-bottom: 22px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .back-entry { padding: 24px 0 48px; }
  .cta-section { padding: 56px 0; }
  .cta-points { flex-direction: column; align-items: center; gap: 10px; }
}
@media (max-width: 480px) {
  .logo-text { font-size: 18px; }
  .nav-actions .btn-sm { display: none; }
  .article-meta { gap: 8px 16px; }
  .breadcrumb { gap: 6px; font-size: 13px; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 18px; }
}