/* roulang page: index */
:root {
  --color-primary: #0B8F5C;
  --color-primary-dark: #066A44;
  --color-primary-light: #E2F4EC;
  --color-accent: #FF6B35;
  --color-dark: #0C1A14;
  --color-bg: #F5F7F4;
  --color-card: #FFFFFF;
  --color-text: #1A2420;
  --color-text-secondary: #5C6B64;
  --color-text-light: #8B9A93;
  --color-border: #E3EAE5;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-tag: 999px;
  --shadow-default: 0 2px 8px rgba(12,26,20,.06);
  --shadow-hover: 0 8px 24px rgba(12,26,20,.12);
  --container-max: 1200px;
  --container-padding: 24px;
  --section-gap: 88px;
  --font-display: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-display);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; border: none; background: none; }
button { cursor: pointer; }
ul, ol { list-style: none; }
.container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--container-padding); padding-right: var(--container-padding); }
.section-pad { padding: var(--section-gap) 0; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(12,26,20,.08); }
.header-top {
  background: var(--color-dark);
  color: #fff;
  font-size: 13px;
  padding: 6px 0;
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-top-links a { color: rgba(255,255,255,.85); margin-left: 20px; transition: color .2s; }
.header-top-links a:hover { color: var(--color-accent); }
.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px; font-weight: 800;
  letter-spacing: -0.5px;
  box-shadow: 0 4px 12px rgba(11,143,92,.3);
}
.brand-text { font-size: 22px; font-weight: 700; color: var(--color-text); letter-spacing: -0.3px; }
.brand-text span { color: var(--color-primary); }
.header-channel { display: flex; align-items: center; gap: 28px; }
.main-nav { display: flex; gap: 26px; }
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 2px;
  position: relative;
  transition: color .25s;
}
.nav-link:hover { color: var(--color-primary); }
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 3px;
  border-radius: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--color-primary); font-weight: 600; }
.header-tools { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex; align-items: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-tag);
  padding: 6px 16px;
  transition: border-color .3s, box-shadow .3s;
}
.search-box:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(11,143,92,.12); }
.search-box input { border: none; outline: none; background: transparent; width: 180px; font-size: 14px; color: var(--color-text); }
.search-box button { color: var(--color-text-secondary); font-size: 14px; transition: color .2s; }
.search-box button:hover { color: var(--color-primary); }
.nav-toggle { display: none; font-size: 22px; color: var(--color-text); padding: 8px; }
.nav-toggle:hover { color: var(--color-primary); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(12,26,20,.85) 0%, rgba(12,26,20,.55) 50%, rgba(12,26,20,.25) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 680px; padding: 80px 0; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: var(--radius-tag);
  backdrop-filter: blur(6px);
  margin-bottom: 20px;
  letter-spacing: .5px;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 20px;
  color: #fff;
  letter-spacing: -0.5px;
}
.hero h1 em { font-style: normal; color: #5CE0A3; }
.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,.88);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 540px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: all .25s ease;
  border: 2px solid transparent;
}
.btn i { font-size: 15px; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(11,143,92,.35); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-outline:hover { background: rgba(255,255,255,.15); border-color: #fff; transform: translateY(-1px); }
.btn-orange { background: var(--color-accent); color: #fff; }
.btn-orange:hover { background: #e85a26; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(255,107,53,.35); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.65); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-1px); }
.hero-scroll {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  color: rgba(255,255,255,.7);
  font-size: 12px;
  letter-spacing: 2px;
  z-index: 2;
}
.hero-scroll .line {
  width: 1px; height: 42px;
  background: linear-gradient(to bottom, rgba(255,255,255,.6), transparent);
  margin-top: 8px;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); transform-origin: top; opacity: .8; }
  50% { transform: scaleY(.7); transform-origin: top; opacity: .4; }
}

/* ===== Catalog ===== */
.catalog-section { background: var(--color-primary-light); padding: 56px 0; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head .sub-label {
  display: inline-block;
  background: rgba(11,143,92,.1);
  color: var(--color-primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: var(--radius-tag);
  margin-bottom: 12px;
}
.section-head h2 { font-size: 30px; font-weight: 700; color: var(--color-text); letter-spacing: -0.3px; }
.section-head p { color: var(--color-text-secondary); font-size: 16px; margin-top: 8px; }
.catalog-pills {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.pill {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,.8);
  border: 1px solid rgba(11,143,92,.2);
  border-radius: var(--radius-tag);
  padding: 10px 24px;
  transition: all .3s ease;
}
.pill:hover { background: var(--color-primary); border-color: var(--color-primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(11,143,92,.25); }
.pill:hover .pill-num { color: rgba(255,255,255,.8); }
.pill-num { font-family: 'Barlow Condensed', 'Oswald', sans-serif; font-size: 16px; font-weight: 700; color: var(--color-primary); letter-spacing: 1px; }
.pill-text { font-size: 15px; font-weight: 600; }

/* ===== Featured ===== */
.featured-section { padding: 88px 0; }
.featured-section .section-head h2 { color: var(--color-text); }
.featured-grid { display: flex; flex-direction: column; gap: 32px; }
.featured-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-default);
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid var(--color-border);
  display: block;
}
.featured-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.featured-card:hover .featured-card-img img { transform: scale(1.03); }
.featured-card:hover .featured-card-body h3 { color: var(--color-primary); }
.featured-card-large { display: grid; grid-template-columns: 1.15fr 1fr; }
.featured-card-img { overflow: hidden; position: relative; }
.featured-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.featured-card-large .featured-card-img { min-height: 320px; }
.featured-card-small .featured-card-img { height: 200px; }
.featured-card-body { padding: 26px 28px; }
.featured-card-body h3 { font-size: 22px; font-weight: 600; margin: 12px 0 10px; transition: color .25s; line-height: 1.4; }
.featured-card-body p { color: var(--color-text-secondary); font-size: 15px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-tag);
  letter-spacing: .3px;
}
.badge-orange { background: rgba(255,107,53,.12); color: #d9531f; }
.featured-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 16px;
  color: var(--color-text-light);
  font-size: 13px;
}
.featured-link { color: var(--color-primary); font-weight: 600; transition: color .2s; }
.featured-card:hover .featured-link { color: var(--color-accent); }
.featured-cards-row { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.featured-card-small .featured-card-body { padding: 20px 22px; }
.featured-card-small .featured-card-body h3 { font-size: 18px; margin: 10px 0 8px; }

/* ===== Related ===== */
.related-section { background: var(--color-dark); padding: 80px 0; position: relative; overflow: hidden; }
.related-section::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: rgba(11,143,92,.15);
  filter: blur(60px);
}
.related-section .section-head h2 { color: #fff; }
.related-section .section-head p { color: rgba(255,255,255,.6); }
.related-scroll {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.related-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  overflow: hidden;
  transition: all .3s ease;
  display: block;
}
.related-card:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.2); transform: translateY(-4px); }
.related-card .related-img { height: 130px; overflow: hidden; }
.related-card .related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.related-card:hover .related-img img { transform: scale(1.05); }
.related-card-body { padding: 14px 16px 18px; }
.related-card-body h3 { font-size: 14px; color: #fff; line-height: 1.5; margin-bottom: 6px; font-weight: 500; }
.related-card-body .tag-mini { font-size: 12px; color: rgba(255,255,255,.6); }

/* ===== Save CTA ===== */
.save-cta-section { padding: 56px 0; }
.save-cta-panel {
  background: var(--color-dark);
  border-radius: 20px;
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.save-cta-panel::before {
  content: '';
  position: absolute;
  bottom: -40px; left: 60px;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: rgba(11,143,92,.2);
  filter: blur(40px);
}
.save-cta-text h3 { color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.save-cta-text p { color: rgba(255,255,255,.7); font-size: 15px; }
.save-cta-count { display: block; color: rgba(255,255,255,.5); font-size: 13px; margin-top: 8px; }
.save-cta-actions { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.share-icons { display: flex; gap: 10px; }
.share-icons a {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px;
  transition: all .25s;
}
.share-icons a:hover { background: var(--color-accent); transform: translateY(-2px); }

/* ===== News / CMS ===== */
.news-section { padding: 88px 0; background: var(--color-bg); }
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.news-featured-card {
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-default);
  border: 1px solid var(--color-border);
  transition: box-shadow .3s;
}
.news-featured-card:hover { box-shadow: var(--shadow-hover); }
.news-featured-card .news-img { height: 220px; overflow: hidden; }
.news-featured-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.news-featured-card:hover .news-img img { transform: scale(1.03); }
.news-featured-body { padding: 24px 26px; }
.news-featured-body h3 { font-size: 20px; margin: 12px 0 8px; line-height: 1.4; }
.news-featured-body h3 a { transition: color .2s; }
.news-featured-body h3 a:hover { color: var(--color-primary); }
.news-featured-body p { color: var(--color-text-secondary); font-size: 15px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 16px; color: var(--color-text-light); font-size: 13px; margin-top: 14px; }
.news-list { display: flex; flex-direction: column; gap: 1px; background: var(--color-border); border-radius: var(--radius-card); overflow: hidden; border: 1px solid var(--color-border); }
.news-list-item {
  background: #fff;
  padding: 18px 22px;
  display: block;
  transition: background .2s, padding-left .3s;
}
.news-list-item:hover { background: var(--color-primary-light); padding-left: 28px; }
.news-list-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.news-list-date { font-size: 13px; color: var(--color-text-light); }
.news-list-item h4 { font-size: 15px; font-weight: 600; color: var(--color-text); line-height: 1.5; margin-bottom: 4px; }
.news-list-item p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: #fff;
  border-radius: var(--radius-card);
  border: 1px dashed var(--color-border);
  color: var(--color-text-light);
}
.news-empty i { font-size: 36px; margin-bottom: 12px; opacity: .5; }
.news-empty p { font-size: 15px; }

/* ===== Stats ===== */
.stats-section { background: var(--color-dark); padding: 56px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item { padding: 24px 16px; border-right: 1px solid rgba(255,255,255,.08); }
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: 'Barlow Condensed', 'Oswald', sans-serif;
  font-size: 44px; font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
  display: block;
}
.stat-label { color: rgba(255,255,255,.6); font-size: 14px; margin-top: 6px; display: block; letter-spacing: 1px; }

/* ===== FAQ ===== */
.faq-section { padding: 88px 0; }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item.active { border-color: var(--color-primary); box-shadow: 0 4px 16px rgba(11,143,92,.08); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color .2s;
  min-height: 44px;
}
.faq-question:hover { color: var(--color-primary); }
.faq-question .faq-icon { font-size: 14px; color: var(--color-text-light); transition: transform .3s; flex-shrink: 0; }
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--color-primary); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
  padding: 0 24px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
  border-top: 1px solid transparent;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 16px 24px 20px;
  border-top-color: var(--color-primary-light);
  background: var(--color-primary-light);
}

/* ===== Final CTA ===== */
.final-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 72px 0;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
}
.final-cta h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.final-cta p { font-size: 17px; color: rgba(255,255,255,.9); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.final-cta .btn-outline-light { border-color: #fff; margin-left: 12px; }

/* ===== Footer ===== */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,.75); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand h4 { color: #fff; font-size: 22px; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-brand h4 .brand-icon { width: 34px; height: 34px; font-size: 15px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.55); margin-top: 12px; }
.footer-col h5 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: 14px;
  padding: 5px 0;
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,.55); margin-bottom: 8px; }
.footer-contact a { color: rgba(255,255,255,.75); }
.footer-contact a:hover { color: var(--color-accent); }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: var(--color-accent); }

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .related-scroll { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 992px) {
  :root { --section-gap: 64px; }
  .header-channel { gap: 16px; }
  .search-box { display: none; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    box-shadow: 0 12px 30px rgba(12,26,20,.12);
    border-bottom: 1px solid var(--color-border);
  }
  .main-nav.open { display: flex; }
  .nav-link { font-size: 16px; padding: 12px 4px; border-bottom: 1px solid var(--color-border); }
  .nav-link::after { display: none; }
  .nav-toggle { display: block; }
  .header-main { position: relative; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }
  .featured-card-large { grid-template-columns: 1fr; }
  .featured-card-large .featured-card-img { min-height: 220px; }
  .related-scroll { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.08); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .catalog-pills { gap: 12px; }
  .pill { padding: 8px 18px; }
  .featured-cards-row { grid-template-columns: 1fr; }
  .save-cta-panel { padding: 32px 24px; flex-direction: column; align-items: flex-start; }
  .final-cta .btn { display: block; width: 100%; margin: 8px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 576px) {
  :root { --section-gap: 48px; --container-padding: 16px; }
  body { font-size: 15px; }
  .brand-text { font-size: 18px; }
  .brand-icon { width: 34px; height: 34px; font-size: 15px; }
  .hero { min-height: 480px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .section-head h2 { font-size: 24px; }
  .related-scroll { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 32px; }
  .news-list-item { padding: 14px 16px; }
  .news-featured-body h3 { font-size: 17px; }
  .final-cta h2 { font-size: 24px; }
  .save-cta-actions { width: 100%; }
  .save-cta-actions .btn { flex: 1; justify-content: center; }
}

/* roulang page: article */
:root {
  --color-primary: #0B8F5C;
  --color-primary-dark: #066A44;
  --color-primary-light: #E2F4EC;
  --color-accent: #FF6B35;
  --color-bg: #F5F7F4;
  --color-card: #FFFFFF;
  --color-text: #1A2420;
  --color-text-secondary: #5C6B64;
  --color-text-muted: #8B9A93;
  --color-border: #E3EAE5;
  --color-dark: #0C1A14;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-display: "Barlow Condensed", "Oswald", "PingFang SC", sans-serif;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(12,26,20,.06);
  --shadow-hover: 0 8px 24px rgba(12,26,20,.12);
  --container: 1200px;
  --space-section: 88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}

.site-header{position:sticky;top:0;z-index:100;background:#fff;transition:box-shadow .3s,background .3s}
.site-header.scrolled{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.92);backdrop-filter:blur(12px)}
.header-top{background:var(--color-dark);color:rgba(255,255,255,.72);font-size:13px}
.header-top-inner{display:flex;justify-content:space-between;align-items:center;height:38px}
.header-top-links{display:flex;gap:18px}
.header-top-links a{transition:color .3s}
.header-top-links a:hover{color:#fff}
.header-main{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 24px;flex-wrap:wrap}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{width:40px;height:40px;background:var(--color-primary);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-family:var(--font-display);font-size:18px;box-shadow:0 2px 8px rgba(11,143,92,.3)}
.brand-text{font-size:24px;font-weight:800;letter-spacing:.5px;color:var(--color-text);white-space:nowrap}
.brand-text span{color:var(--color-primary)}

.header-channel{display:flex;align-items:center;gap:12px}
.main-nav{display:flex;gap:6px}
.nav-link{padding:10px 18px;font-weight:600;color:var(--color-text-secondary);border-radius:var(--radius-pill);position:relative;transition:color .3s,background .3s}
.nav-link:hover{color:var(--color-primary);background:var(--color-primary-light)}
.nav-link.active{color:var(--color-primary);background:var(--color-primary-light)}
.nav-link.active::after{content:'';position:absolute;left:20px;right:20px;bottom:3px;height:2px;background:var(--color-primary);border-radius:2px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);background:#fff;border-radius:var(--radius-btn);font-size:18px;color:var(--color-text);transition:border-color .3s,color .3s}
.nav-toggle:hover{border-color:var(--color-primary);color:var(--color-primary)}

.header-tools{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-pill);padding:4px 6px 4px 18px;transition:border-color .3s,box-shadow .3s;width:260px}
.search-box:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(11,143,92,.12)}
.search-box input{flex:1;border:none;outline:none;background:transparent;padding:8px 0;font-size:14px;min-width:0}
.search-box button{width:36px;height:36px;border:none;background:var(--color-primary);color:#fff;border-radius:50%;transition:background .3s,transform .3s}
.search-box button:hover{background:var(--color-primary-dark);transform:scale(1.04)}

.article-hero{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:68px 0;color:#fff}
.article-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,26,20,.92) 0%,rgba(12,26,20,.68) 55%,rgba(12,26,20,.32) 100%)}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;gap:8px;font-size:14px;opacity:.85;margin-bottom:24px;flex-wrap:wrap}
.breadcrumb a{transition:color .3s}
.breadcrumb a:hover{color:var(--color-accent)}
.breadcrumb .sep{color:rgba(255,255,255,.5)}
.article-hero h1{font-size:clamp(30px,4.4vw,44px);line-height:1.25;max-width:840px;margin-bottom:18px;font-weight:800}
.article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.82)}
.badge{display:inline-block;padding:4px 14px;border-radius:var(--radius-pill);background:var(--color-primary);color:#fff;font-size:13px;font-weight:600}
.meta-item{display:inline-flex;align-items:center;gap:6px}

.article-body{padding:64px 0 32px}
.article-layout{max-width:880px;margin:0 auto}
.article-content{background:var(--color-card);border-radius:var(--radius-card);padding:52px;box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}
.article-content h2{font-size:30px;font-weight:800;margin:36px 0 16px;padding-left:16px;border-left:4px solid var(--color-primary)}
.article-content h3{font-size:22px;font-weight:700;margin:28px 0 12px}
.article-content h4{font-size:18px;font-weight:700;margin:22px 0 10px}
.article-content p{margin:14px 0;line-height:1.9;color:var(--color-text)}
.article-content img{border-radius:12px;margin:24px auto;width:100%}
.article-content blockquote{border-left:4px solid var(--color-accent);background:#F0F7F3;padding:20px 24px;border-radius:8px;margin:24px 0;color:var(--color-text-secondary);font-style:italic}
.article-content blockquote p{margin:0}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-content table th,.article-content table td{padding:12px 16px;border-bottom:1px solid var(--color-border);text-align:left}
.article-content table th{background:var(--color-primary-light);font-weight:700;color:var(--color-primary-dark)}
.article-content ul,.article-content ol{padding-left:24px;margin:14px 0;line-height:1.9}
.article-content li{margin-bottom:6px}
.article-content a{color:var(--color-primary);text-decoration:underline;text-underline-offset:4px}
.article-content a:hover{color:var(--color-accent)}
.article-content strong{color:var(--color-primary-dark)}
.article-content hr{border:none;border-top:1px solid var(--color-border);margin:32px 0}
.article-content iframe{max-width:100%;border-radius:12px;margin:24px 0}

.article-empty{text-align:center;padding:80px 24px}
.article-empty .empty-icon{font-size:60px;color:var(--color-text-muted);margin-bottom:16px}
.article-empty h2{font-size:26px;margin-bottom:10px}
.article-empty p{color:var(--color-text-secondary);margin-bottom:28px}
.article-empty .btn{display:inline-flex}

.article-footer-links{display:flex;justify-content:center;gap:16px;margin-top:48px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;border:2px solid transparent;transition:all .3s}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-outline-dark{border-color:var(--color-primary);color:var(--color-primary);background:transparent}
.btn-outline-dark:hover{background:var(--color-primary);color:#fff}
.btn-accent{background:var(--color-accent);color:#fff}
.btn-accent:hover{background:#e85a2a;transform:translateY(-1px);box-shadow:var(--shadow-hover)}

.share-cta{background:var(--color-dark);padding:52px 0;margin-top:64px}
.share-cta-inner{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.share-text h3{font-size:28px;font-weight:800;color:#fff;margin-bottom:8px}
.share-text p{color:rgba(255,255,255,.7);font-size:15px}
.share-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.share-icons{display:flex;gap:10px}
.share-icons a{width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;transition:background .3s,transform .3s}
.share-icons a:hover{background:var(--color-accent);transform:translateY(-2px)}

.related-section{padding:var(--space-section) 0 40px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:36px;gap:16px}
.section-head h2{font-size:32px;font-weight:800}
.section-head h2 span{color:var(--color-primary)}
.section-head a{color:var(--color-primary);font-weight:600;transition:color .3s}
.section-head a:hover{color:var(--color-accent)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-card);overflow:hidden;transition:transform .3s,box-shadow .3s;display:block}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.related-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.related-card:hover .related-cover img{transform:scale(1.03)}
.related-cover .badge{position:absolute;top:14px;left:14px;z-index:2}
.related-body{padding:20px}
.related-body h3{font-size:19px;font-weight:700;margin-bottom:8px;transition:color .3s}
.related-card:hover .related-body h3{color:var(--color-primary)}
.related-body p{font-size:14px;color:var(--color-text-secondary);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.site-footer{background:var(--color-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand h4{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff;margin-bottom:18px}
.footer-brand h4 .brand-icon{font-size:15px;width:36px;height:36px;border-radius:9px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px}
.footer-col h5,.footer-contact h5{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;transition:color .3s}
.footer-col a:hover{color:var(--color-accent)}
.footer-contact p{font-size:14px;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--color-primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.45)}

@media (max-width: 992px) {
  .nav-toggle{display:block}
  .main-nav{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#fff;border-bottom:1px solid var(--color-border);border-radius:0 0 14px 14px;flex-direction:column;padding:12px;display:none;box-shadow:var(--shadow-hover)}
  .main-nav.open{display:flex}
  .main-nav .nav-link.active::after{display:none}
  .header-channel{position:relative}
  .search-box{width:44px;padding:4px;justify-content:center}
  .search-box input{display:none}
  .search-box:focus-within{width:220px;padding:4px 6px 4px 14px}
  .search-box:focus-within input{display:block}
  .search-box button{width:36px;height:36px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 768px) {
  .header-main{padding:12px 16px;gap:12px}
  .header-tools{order:3;width:100%}
  .search-box{width:100%;padding:4px 6px 4px 16px}
  .search-box input{display:block}
  .search-box:focus-within{width:100%}
  .header-top-links{display:none}
  .header-top-inner{justify-content:center}
  .article-hero{padding:48px 0}
  .article-content{padding:28px 20px}
  .article-content h2{font-size:24px}
  .article-content h3{font-size:19px}
  .section-head h2{font-size:26px}
}
@media (max-width: 576px) {
  :root{--space-section:56px}
  .container{padding-left:16px;padding-right:16px}
  .brand-text{font-size:20px}
  .brand-icon{width:36px;height:36px;font-size:15px}
  .related-grid{grid-template-columns:1fr}
  .share-cta-inner{flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .article-footer-links .btn{width:100%}
  .share-actions{width:100%;justify-content:center}
}

/* roulang page: category1 */
:root {
            --color-primary: #0B8F5C;
            --color-primary-dark: #066A44;
            --color-primary-light: #E2F4EC;
            --color-accent: #FF6B35;
            --color-dark: #0C1A14;
            --color-dark-soft: #14241D;
            --color-bg: #F5F7F4;
            --color-card: #FFFFFF;
            --color-text: #1A2420;
            --color-text-secondary: #5C6B64;
            --color-text-muted: #8B9A93;
            --color-border: #E3EAE5;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-default: 0 2px 8px rgba(12, 26, 20, .06);
            --shadow-hover: 0 8px 24px rgba(12, 26, 20, .12);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --font-display: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

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

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all .25s ease;
            vertical-align: middle;
            line-height: 1.4;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(11, 143, 92, .25);
        }

        .btn-primary:hover {
            background: #077a4d;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(11, 143, 92, .35);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
            background: rgba(255, 255, 255, .08);
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .16);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 53, .3);
        }

        .btn-accent:hover {
            background: #e85a2a;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, .4);
        }

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

        .btn-light:hover {
            background: #f0f7f3;
            transform: translateY(-2px);
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow .3s ease, background .3s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            box-shadow: 0 2px 16px rgba(12, 26, 20, .08);
        }

        .header-top {
            background: var(--color-dark);
            color: rgba(255, 255, 255, .8);
            font-size: 13px;
        }

        .header-top-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 36px;
        }

        .header-top-links {
            display: flex;
            gap: 20px;
        }

        .header-top-links a {
            color: rgba(255, 255, 255, .8);
            transition: color .2s;
        }

        .header-top-links a:hover {
            color: #fff;
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }

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

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            border-radius: 10px;
            letter-spacing: .5px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
        }

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

        .header-channel {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .nav-link {
            position: relative;
            display: inline-block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-btn);
            transition: color .25s, background .25s;
        }

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

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            padding: 4px 6px 4px 16px;
            transition: border-color .25s, box-shadow .25s;
            width: 220px;
        }

        .search-box:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(11, 143, 92, .12);
        }

        .search-box input {
            border: none;
            background: transparent;
            flex: 1;
            font-size: 13px;
            color: var(--color-text);
            width: 100%;
        }

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

        .search-box button {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: background .25s;
        }

        .search-box button:hover {
            background: var(--color-primary-dark);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            font-size: 18px;
            color: var(--color-text);
            align-items: center;
            justify-content: center;
            transition: background .25s;
        }

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

        /* ===== Hero ===== */
        .cat-hero {
            position: relative;
            min-height: 540px;
            display: flex;
            align-items: center;
            overflow: hidden;
            color: #fff;
            background: var(--color-dark);
        }

        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            transform: scale(1.05);
        }

        .cat-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(12, 26, 20, .88) 0%, rgba(12, 26, 20, .55) 55%, rgba(12, 26, 20, .3) 100%);
        }

        .cat-hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .cat-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(11, 143, 92, .9);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .cat-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .cat-hero h1 em {
            font-style: normal;
            color: #6ee7b0;
        }

        .cat-hero p {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 32px;
            max-width: 580px;
        }

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

        .scroll-indicator {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .7);
            font-size: 12px;
            letter-spacing: 2px;
        }

        .scroll-indicator .line {
            width: 1px;
            height: 40px;
            background: linear-gradient(to bottom, rgba(255, 255, 255, .8), transparent);
            position: relative;
            overflow: hidden;
        }

        .scroll-indicator .line::after {
            content: "";
            position: absolute;
            top: -100%;
            left: 0;
            width: 100%;
            height: 100%;
            background: #fff;
            animation: scrollHint 2s infinite;
        }

        @keyframes scrollHint {
            0% {
                top: -100%;
            }
            100% {
                top: 100%;
            }
        }

        /* ===== Section Common ===== */
        .section-pad {
            padding: 76px 0;
        }

        .section-bg-light {
            background: var(--color-primary-light);
        }

        .section-bg-white {
            background: #fff;
        }

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

        .section-head {
            margin-bottom: 44px;
            max-width: 680px;
        }

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

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
            margin-bottom: 12px;
        }

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

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: 3px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        /* ===== Feature Strip ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-item {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 32px 28px;
            border: 1px solid var(--color-border);
            transition: box-shadow .3s, transform .3s;
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
            transition: background .3s, color .3s;
        }

        .feature-item:hover .feature-icon {
            background: var(--color-primary);
            color: #fff;
        }

        .feature-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }

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

        /* ===== Featured Events ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .featured-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: box-shadow .3s, transform .3s;
        }

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

        .featured-card .card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .featured-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

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

        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: .5px;
            z-index: 2;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
        }

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

        .card-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            transition: color .25s;
            line-height: 1.4;
        }

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

        .card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }

        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .card-meta i {
            color: var(--color-primary);
        }

        .featured-card-wide {
            grid-column: span 2;
        }

        .featured-card-wide .card-image {
            aspect-ratio: 16 / 6.4;
        }

        .featured-card-wide .card-body {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 20px;
            padding: 28px 30px;
            align-items: center;
        }

        .featured-card-wide .card-body p {
            -webkit-line-clamp: unset;
            margin-bottom: 0;
        }

        .featured-card-wide .card-meta {
            border-top: none;
            padding-top: 0;
            border-left: 1px solid var(--color-border);
            padding-left: 24px;
            flex-direction: column;
            gap: 6px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--color-dark);
            position: relative;
            overflow: hidden;
            padding: 72px 0;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(11, 143, 92, .25), transparent 70%);
        }

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

        .stat-item {
            padding: 16px;
        }

        .stat-num {
            font-size: 46px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            font-family: var(--font-display);
            letter-spacing: 1px;
        }

        .stat-num .unit {
            font-size: 26px;
            color: var(--color-accent);
            margin-left: 3px;
        }

        .stat-label {
            margin-top: 10px;
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            letter-spacing: 1px;
        }

        .stat-divider {
            width: 40px;
            height: 3px;
            background: var(--color-accent);
            margin: 14px auto 0;
            border-radius: 4px;
        }

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

        .step-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 36px 24px 28px;
            transition: box-shadow .3s, transform .3s;
            text-align: center;
        }

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

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 18px;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* ===== Experience ===== */
        .experience-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .experience-media {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .experience-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .experience-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(12, 26, 20, .35), transparent 50%);
        }

        .experience-tag {
            position: absolute;
            bottom: 18px;
            left: 18px;
            z-index: 2;
            background: rgba(11, 143, 92, .9);
            color: #fff;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            letter-spacing: .5px;
        }

        .experience-text h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .experience-text p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .experience-list {
            margin-top: 16px;
        }

        .experience-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--color-text);
        }

        .experience-list li i {
            color: var(--color-primary);
            margin-top: 5px;
            font-size: 14px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .25s, box-shadow .25s;
        }

        .faq-item.open {
            border-left: 3px solid var(--color-primary);
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            min-height: 56px;
            transition: background .25s;
        }

        .faq-question:hover {
            background: var(--color-primary-light);
        }

        .faq-question .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform .3s, background .3s, color .3s;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            transition: max-height .35s ease, padding .35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-dark);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
            color: #fff;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(11, 143, 92, .3), transparent 70%);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, .75);
            font-size: 16px;
            margin-bottom: 32px;
        }

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

        .cta-note {
            margin-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, .7);
            padding-top: 64px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 13px;
            border-radius: 8px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .6);
            max-width: 340px;
        }

        .footer-col h5,
        .footer-contact h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .footer-col a {
            display: block;
            padding: 4px 0;
            color: rgba(255, 255, 255, .6);
            transition: color .25s, padding-left .25s;
        }

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

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 4px 0;
            color: rgba(255, 255, 255, .6);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .header-main {
                flex-wrap: wrap;
                padding-top: 10px;
                padding-bottom: 10px;
                gap: 12px;
            }

            .header-channel {
                order: 3;
                width: 100%;
                justify-content: space-between;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-hover);
                padding: 8px 16px 16px;
                gap: 2px;
                z-index: 100;
            }

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

            .nav-link {
                padding: 12px 14px;
            }

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

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

            .nav-toggle {
                display: flex;
            }

            .search-box {
                width: 100%;
                max-width: 300px;
            }

            .features-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 18px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

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

            .experience-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

        @media (max-width: 768px) {
            .section-pad {
                padding: 52px 0;
            }

            .cat-hero {
                min-height: 460px;
            }

            .cat-hero h1 {
                font-size: 32px;
            }

            .cat-hero p {
                font-size: 15px;
            }

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

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

            .featured-card-wide {
                grid-column: auto;
            }

            .featured-card-wide .card-image {
                aspect-ratio: 16 / 10;
            }

            .featured-card-wide .card-body {
                grid-template-columns: 1fr;
                padding: 24px;
            }

            .featured-card-wide .card-meta {
                border-left: none;
                border-top: 1px solid var(--color-border);
                padding-left: 0;
                padding-top: 14px;
                flex-direction: row;
                flex-wrap: wrap;
            }

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

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

            .stat-num {
                font-size: 36px;
            }

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

            .cta-content h2 {
                font-size: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .header-top {
                font-size: 12px;
            }

            .header-top-links {
                gap: 10px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-text {
                font-size: 18px;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }

            .header-top-links {
                display: none;
            }

            .header-top-inner {
                justify-content: center;
            }

            .search-box {
                max-width: 100%;
            }

            .cat-hero {
                min-height: 400px;
            }

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

            .cat-hero p {
                font-size: 14px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            .feature-item {
                padding: 24px 18px;
            }

            .card-body {
                padding: 18px 16px 16px;
            }

            .card-body h3 {
                font-size: 17px;
            }

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

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

            .stat-item {
                padding: 8px;
            }

            .stat-num {
                font-size: 30px;
            }

            .stat-num .unit {
                font-size: 20px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

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

            .section-head {
                margin-bottom: 28px;
            }
        }

/* roulang page: category2 */
:root {
  --color-primary: #0B8F5C;
  --color-primary-dark: #066A44;
  --color-primary-light: #E2F4EC;
  --color-accent: #FF6B35;
  --color-dark: #0C1A14;
  --color-bg: #F5F7F4;
  --color-card: #FFFFFF;
  --color-text: #1A2420;
  --color-text-secondary: #5C6B64;
  --color-text-light: #8B9A93;
  --color-border: #E3EAE5;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-tag: 999px;
  --shadow-default: 0 2px 8px rgba(12,26,20,.06);
  --shadow-hover: 0 8px 24px rgba(12,26,20,.12);
  --container-max: 1200px;
  --spacing-section: 80px;
  --spacing-section-mobile: 56px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --font-display: "Barlow Condensed", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.75; color: var(--color-text); background: var(--color-bg); overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--color-primary-dark); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
::selection { background: rgba(11,143,92,.18); }
.container { max-width: var(--container-max); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding: var(--spacing-section) 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head h2 { font-size: 32px; font-weight: 700; line-height: 1.3; color: var(--color-text); margin-bottom: 12px; letter-spacing: .5px; }
.section-head p { font-size: 16px; color: var(--color-text-secondary); line-height: 1.7; }
.section-kicker { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 2px; color: var(--color-primary); background: var(--color-primary-light); padding: 4px 16px; border-radius: var(--radius-tag); margin-bottom: 14px; text-transform: uppercase; }
.center { text-align: center; }
.mb-0 { margin-bottom: 0; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); transition: box-shadow .3s ease; }
.site-header.scrolled { box-shadow: var(--shadow-default); }
.header-top { background: var(--color-dark); color: rgba(255,255,255,.75); font-size: 13px; padding: 6px 0; }
.header-top-inner { display: flex; justify-content: space-between; align-items: center; min-height: 32px; }
.header-top-inner span { letter-spacing: .3px; }
.header-top-links { display: flex; gap: 18px; }
.header-top-links a { color: rgba(255,255,255,.75); font-size: 13px; transition: color .25s ease; }
.header-top-links a:hover { color: #fff; }
.header-main { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--color-primary); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 19px; line-height: 38px; text-align: center; letter-spacing: .5px; display: inline-block; }
.brand-text { font-size: 20px; font-weight: 700; color: var(--color-text); letter-spacing: .5px; line-height: 1.2; }
.brand-text span { color: var(--color-primary); }
.header-channel { display: flex; align-items: center; gap: 8px; }
.main-nav { display: flex; gap: 6px; }
.nav-link { padding: 8px 18px; border-radius: var(--radius-tag); font-size: 15px; font-weight: 500; color: var(--color-text-secondary); transition: all .25s ease; position: relative; }
.nav-link:hover { color: var(--color-primary); background: var(--color-primary-light); }
.nav-link.active { color: var(--color-primary); background: var(--color-primary-light); font-weight: 600; }
.nav-link.active::after { content: ''; position: absolute; left: 18px; right: 18px; bottom: 0; height: 3px; border-radius: 2px; background: var(--color-primary); }
.header-tools { display: flex; align-items: center; gap: 12px; }
.search-box { display: flex; align-items: center; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-tag); padding: 0 6px 0 16px; transition: border-color .3s ease, box-shadow .3s ease; }
.search-box:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(11,143,92,.12); }
.search-box input { border: none; outline: none; background: transparent; font-size: 14px; color: var(--color-text); width: 160px; padding: 8px 0; }
.search-box input::placeholder { color: var(--color-text-light); }
.search-box button { width: 36px; height: 36px; border-radius: 50%; color: var(--color-text-secondary); font-size: 14px; transition: all .25s ease; }
.search-box button:hover { color: var(--color-primary); background: var(--color-primary-light); }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; font-size: 20px; color: var(--color-text); align-items: center; justify-content: center; transition: background .25s ease; }
.nav-toggle:hover { background: var(--color-primary-light); color: var(--color-primary); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 560px; display: flex; align-items: center; padding: 80px 0; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(12,26,20,.88) 0%, rgba(12,26,20,.55) 55%, rgba(12,26,20,.25) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-badge { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 1px; color: #fff; background: rgba(11,143,92,.85); border: 1px solid rgba(255,255,255,.2); padding: 6px 20px; border-radius: var(--radius-tag); margin-bottom: 22px; text-transform: uppercase; }
.hero h1 { font-size: 44px; font-weight: 800; line-height: 1.15; color: #fff; letter-spacing: 1px; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: #4ED69C; }
.hero-subtitle { font-size: 18px; line-height: 1.75; color: rgba(255,255,255,.85); max-width: 620px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 30px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600; line-height: 1.2; transition: all .3s ease; border: 2px solid transparent; }
.btn i { font-size: 15px; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(11,143,92,.25); }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,.65); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: #e85a26; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,107,53,.25); }
.hero-scroll { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 3; display: flex; flex-direction: column; align-items: center; gap: 6px; color: rgba(255,255,255,.6); font-size: 12px; letter-spacing: 2px; }
.hero-scroll i { animation: scrollDown 1.8s ease infinite; font-size: 14px; }
@keyframes scrollDown { 0%, 100% { transform: translateY(0); opacity: .6; } 50% { transform: translateY(8px); opacity: 1; } }

/* ===== Feature Intro ===== */
.feature-intro { background: #fff; border-bottom: 1px solid var(--color-border); }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.feature-media { position: relative; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-hover); aspect-ratio: 4/3; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.feature-media:hover img { transform: scale(1.04); }
.feature-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(12,26,20,.12), transparent 40%); }
.feature-copy h2 { font-size: 32px; font-weight: 700; line-height: 1.3; margin-bottom: 14px; }
.feature-copy > p { color: var(--color-text-secondary); margin-bottom: 28px; max-width: 480px; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 22px; }
.feature-list li { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--color-primary-light); color: var(--color-primary); font-size: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.feature-icon i { font-size: 18px; }
.feature-text h3 { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.feature-text p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.65; }

/* ===== Featured Reviews ===== */
.featured-section { background: var(--color-bg); }
.featured-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 28px; }
.card { background: var(--color-card); border-radius: var(--radius-card); box-shadow: var(--shadow-default); overflow: hidden; transition: transform .3s ease, box-shadow .3s ease; border: 1px solid var(--color-border); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card-image { position: relative; overflow: hidden; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.card:hover .card-image img { transform: scale(1.03); }
.card-body { padding: 24px; }
.card-tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--color-primary); background: var(--color-primary-light); padding: 4px 14px; border-radius: var(--radius-tag); margin-bottom: 12px; }
.card h3 { font-size: 22px; font-weight: 700; line-height: 1.35; margin-bottom: 10px; color: var(--color-text); transition: color .25s ease; }
.card:hover h3 { color: var(--color-primary); }
.card-summary { font-size: 15px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--color-text-light); }
.card-meta i { font-size: 13px; }
.card-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; margin-top: 14px; color: var(--color-primary); transition: gap .25s ease; }
.card-link i { font-size: 13px; }
.card-link:hover { gap: 10px; color: var(--color-primary-dark); }
.feature-card-large .card-image { aspect-ratio: 16/10; }
.feature-card-small .card-image { aspect-ratio: 16/9; }
.feature-card-small h3 { font-size: 18px; }
.card-stack { display: flex; flex-direction: column; gap: 28px; }

/* ===== Buying Guide ===== */
.guide-section { background: #fff; }
.guide-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.guide-step { position: relative; padding: 32px 28px 28px; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-card); transition: all .3s ease; }
.guide-step:hover { border-color: var(--color-primary); box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.step-num { font-family: var(--font-display); font-size: 38px; font-weight: 700; color: var(--color-primary); line-height: 1; margin-bottom: 14px; letter-spacing: 1px; }
.guide-step h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.guide-step p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.65; }

/* ===== Scenarios ===== */
.scenario-section { background: var(--color-bg); }
.scenario-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 28px; }
.scenario-card { border-radius: var(--radius-card); overflow: hidden; background: var(--color-card); border: 1px solid var(--color-border); box-shadow: var(--shadow-default); transition: transform .3s ease, box-shadow .3s ease; }
.scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.scenario-card .card-image { aspect-ratio: 16/9; }
.scenario-card .card-image img { width: 100%; height: 100%; object-fit: cover; }
.scenario-main .card-image { aspect-ratio: 16/10; }
.scenario-list { display: flex; flex-direction: column; gap: 28px; }
.scenario-list .scenario-card { flex: 1; }
.scenario-body { padding: 22px; }
.scenario-body h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.scenario-body p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.65; }
.scenario-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.scenario-tags span { font-size: 12px; color: var(--color-text-secondary); background: var(--color-bg); border: 1px solid var(--color-border); padding: 4px 12px; border-radius: var(--radius-tag); }

/* ===== Stats ===== */
.stats-section { background: var(--color-dark); padding: 56px 0; }
.stats-bar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; }
.stat-num { font-family: var(--font-display); font-size: 52px; font-weight: 700; color: #fff; line-height: 1.1; letter-spacing: 1px; }
.stat-num em { font-style: normal; color: var(--color-accent); }
.stat-label { font-size: 15px; color: rgba(255,255,255,.65); margin-top: 6px; letter-spacing: .5px; }

/* ===== FAQ ===== */
.faq-section { background: #fff; }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 14px; background: var(--color-card); overflow: hidden; transition: border-color .3s ease, box-shadow .3s ease; }
.faq-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow-default); }
.faq-item[open] { border-color: var(--color-primary); box-shadow: var(--shadow-default); }
.faq-item summary { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--color-text); cursor: pointer; list-style: none; min-height: 56px; transition: color .2s ease; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--color-primary); }
.faq-item summary::after { content: '\f078'; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 14px; color: var(--color-text-light); transition: transform .3s ease, color .3s ease; }
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--color-primary); }
.faq-item[open] summary { border-left: 3px solid var(--color-primary); background: var(--color-primary-light); border-radius: 14px 14px 0 0; }
.faq-answer { padding: 4px 24px 20px; font-size: 15px; color: var(--color-text-secondary); line-height: 1.75; }

/* ===== CTA ===== */
.cta-section { background: var(--color-dark); }
.cta-panel { text-align: center; padding: 64px 40px; border-radius: var(--radius-card); background: linear-gradient(135deg, rgba(11,143,92,.35), rgba(12,26,20,.2)), var(--color-dark); border: 1px solid rgba(255,255,255,.08); }
.cta-panel h2 { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 12px; letter-spacing: .5px; }
.cta-panel p { color: rgba(255,255,255,.7); margin-bottom: 28px; font-size: 16px; }
.cta-actions { display: flex; justify-content: center; align-items: center; gap: 20px; flex-wrap: wrap; }
.share-group { display: flex; gap: 8px; align-items: center; }
.share-btn { width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,.1); color: rgba(255,255,255,.85); font-size: 16px; display: flex; align-items: center; justify-content: center; transition: all .25s ease; border: 1px solid rgba(255,255,255,.12); }
.share-btn:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }
.cta-note { margin-top: 20px; font-size: 13px; color: rgba(255,255,255,.4); }

/* ===== Footer ===== */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,.75); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 48px; }
.footer-brand h4 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-brand h4 .brand-icon { width: 32px; height: 32px; font-size: 15px; line-height: 32px; }
.footer-brand p { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,.6); max-width: 320px; }
.footer-col h5, .footer-contact h5 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.6); padding: 4px 0; transition: color .25s ease, transform .25s ease; }
.footer-col a:hover { color: var(--color-primary); transform: translateX(4px); }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { width: 16px; color: var(--color-primary); font-size: 14px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; font-size: 13px; color: rgba(255,255,255,.4); }

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .search-box input { width: 120px; }
  .nav-link { padding: 8px 14px; font-size: 14px; }
}
@media (max-width: 992px) {
  :root { --spacing-section: 56px; }
  .header-main { flex-wrap: wrap; min-height: auto; padding: 12px 0; }
  .header-tools { order: 3; width: 100%; }
  .search-box { flex: 1; }
  .search-box input { width: 100%; }
  .main-nav { position: fixed; top: 0; right: -280px; width: 280px; height: 100vh; background: #fff; flex-direction: column; padding: 80px 24px 24px; gap: 4px; box-shadow: -8px 0 30px rgba(12,26,20,.15); transition: right .3s ease; z-index: 200; }
  .main-nav.open { right: 0; }
  .nav-link { font-size: 16px; padding: 12px 16px; border-radius: 10px; }
  .nav-link.active::after { display: none; }
  .nav-toggle { display: inline-flex; }
  .feature-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-media { max-width: 560px; }
  .guide-steps { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .hero { min-height: 480px; padding: 60px 0; }
  .hero h1 { font-size: 34px; }
}
@media (max-width: 768px) {
  .card-stack { gap: 20px; }
  .featured-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(3, 1fr); }
  .stat-num { font-size: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-panel { padding: 40px 24px; }
  .section-head h2 { font-size: 26px; }
  .feature-copy h2 { font-size: 26px; }
  .hero-subtitle { font-size: 16px; }
}
@media (max-width: 576px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .section { padding: 48px 0; }
  .header-top-inner span { display: none; }
  .header-top-inner { justify-content: flex-end; }
  .brand-text { font-size: 17px; }
  .brand-icon { width: 34px; height: 34px; font-size: 16px; line-height: 34px; }
  .hero { min-height: 420px; padding: 48px 0; }
  .hero h1 { font-size: 28px; line-height: 1.25; }
  .hero-subtitle { font-size: 15px; line-height: 1.65; }
  .hero-actions .btn { width: 100%; }
  .guide-steps { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
  .stat-num { font-size: 30px; }
  .stat-label { font-size: 13px; }
  .card-body { padding: 18px; }
  .card h3 { font-size: 18px; }
  .feature-card-small h3 { font-size: 16px; }
  .faq-item summary { padding: 16px 18px; font-size: 15px; }
  .faq-answer { padding: 4px 18px 16px; font-size: 14px; }
  .cta-panel h2 { font-size: 24px; }
  .cta-actions { flex-direction: column; }
  .share-group { justify-content: center; }
  .footer-brand p { font-size: 13px; }
  .footer-bottom p { font-size: 12px; }
  .section-head { margin-bottom: 32px; }
  .section-kicker { font-size: 12px; }
}