/* roulang page: index */
:root {
  --primary: #0F766E;
  --primary-dark: #0D6E65;
  --primary-deep: #084C47;
  --accent: #F59E0B;
  --bg: #F8FAFA;
  --text: #1F2937;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --border: #E2E8F0;
  --divider: #EEF2F6;
  --dark: #0F1A1A;
  --radius-card: 16px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.10);
  --shadow-modal: 0 12px 40px rgba(0,0,0,0.14);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 96px 0; }
@media (max-width: 768px) {
  .section-pad { padding: 64px 0; }
}

/* 顶部导航 */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 64px; transition: background 0.3s ease, box-shadow 0.3s ease;
  background: rgba(15, 26, 26, 0.35); backdrop-filter: blur(8px);
}
.site-header.scrolled {
  background: rgba(255,255,255,0.96); box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.site-header.scrolled .nav-link { color: var(--text); }
.site-header.scrolled .nav-link:hover { color: var(--primary); }
.site-header.scrolled .brand-name { color: var(--text); }
.site-header.scrolled .brand-sub { color: var(--primary); }
.nav-wrap { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, #0F766E, #0B5D56);
  display: flex; align-items: center; justify-content: center;
  color: #fff; flex-shrink: 0;
}
.brand-name { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: -0.02em; line-height: 1.1; }
.brand-sub { font-size: 12px; font-weight: 500; color: rgba(255,255,255,0.7); letter-spacing: 0.04em; margin-top: 2px; }
.site-header.scrolled .brand-sub { color: var(--primary); }
.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-link {
  font-size: 15px; font-weight: 500; color: rgba(255,255,255,0.9);
  padding: 6px 2px; position: relative; transition: color 0.25s ease;
}
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
  background: var(--accent); transition: width 0.3s ease; border-radius: 2px;
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: #fff; font-weight: 600; }
.site-header.scrolled .nav-link.active { color: var(--primary); }
.nav-cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 22px; border-radius: 8px; font-size: 15px; font-weight: 600;
  background: var(--accent); color: #1F2937; transition: all 0.25s ease;
}
.nav-cta:hover { background: #d97706; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(245,158,11,0.3); }

/* 移动端头部 */
.mobile-header { display: none; height: 64px; padding: 0 20px; align-items: center; justify-content: space-between; }
.mobile-header .brand-icon { width: 36px; height: 36px; border-radius: 10px; }
.mobile-header .brand-name { font-size: 20px; }
.menu-toggle { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; color: var(--text); border-radius: 8px; }
.menu-toggle:hover { background: rgba(0,0,0,0.05); }

/* 移动端抽屉 */
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 280px; z-index: 200;
  background: #fff; transform: translateX(100%); transition: transform 0.3s ease;
  box-shadow: var(--shadow-modal); padding: 24px; display: flex; flex-direction: column; gap: 8px;
}
.drawer.open { transform: translateX(0); }
.drawer-mask {
  position: fixed; inset: 0; z-index: 199; background: rgba(0,0,0,0.5);
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.drawer-mask.active { opacity: 1; pointer-events: auto; }
.drawer-link {
  padding: 14px 16px; border-radius: 12px; font-size: 16px; font-weight: 500;
  color: var(--text); display: block; transition: all 0.25s ease;
}
.drawer-link:hover, .drawer-link.active { background: var(--primary); color: #fff; }
.drawer-close { align-self: flex-end; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 8px; color: var(--text); }

/* Hero */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
  overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(8,76,71,0.95) 5%, rgba(15,118,110,0.82) 45%, rgba(15,118,110,0.45) 100%);
}
.hero-content { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; padding: 120px 0 80px; }
.hero-title { font-size: clamp(32px, 5vw, 52px); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; color: #fff; margin-bottom: 24px; }
.hero-title .highlight { color: var(--accent); }
.hero-sub { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.82); margin-bottom: 36px; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; border-radius: 8px; font-size: 16px; font-weight: 600;
  transition: all 0.3s ease; letter-spacing: 0.02em;
}
.btn-primary { background: var(--accent); color: #1F2937; }
.btn-primary:hover { background: #d97706; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(245,158,11,0.35); }
.btn-primary:active { transform: scale(0.97); }
.btn-outline { border: 2px solid rgba(255,255,255,0.7); color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-1px); }
.btn-outline:focus-visible, .btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { display: flex; flex-direction: column; gap: 4px; }
.hero-stat strong { font-size: 26px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-stat span { font-size: 14px; color: rgba(255,255,255,0.7); }
.hero-stat + .hero-stat { border-left: 1px solid rgba(255,255,255,0.25); padding-left: 40px; }
.hero-image {
  border-radius: 24px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  transform: rotate(1deg); transition: transform 0.4s ease;
}
.hero-image:hover { transform: rotate(0deg) scale(1.02); }
.hero-image img { width: 100%; height: 420px; object-fit: cover; }
.hero-wave { position: absolute; bottom: 0; left: 0; right: 0; height: 60px; opacity: 0.15; z-index: 1; }

/* 信任条 */
.trust-bar { background: #fff; border-bottom: 1px solid var(--divider); padding: 20px 0; }
.trust-wrap { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 48px; }
.trust-item { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #6B7280; font-weight: 500; }
.trust-item svg { width: 18px; height: 18px; color: var(--primary); opacity: 0.6; }

/* 区块标题 */
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .tag {
  display: inline-block; padding: 6px 16px; border-radius: 999px;
  background: var(--primary); color: #fff; font-size: 13px; font-weight: 600; margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 36px); font-weight: 700; line-height: 1.25; letter-spacing: -0.01em;
  color: var(--text); margin-bottom: 12px;
}
.section-head p { font-size: 15px; color: var(--text-secondary); max-width: 640px; margin: 0 auto; }
.section-head.left { text-align: left; }

/* 主推产品 */
.feature-section { background: #fff; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.feature-image { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); position: relative; }
.feature-image img { width: 100%; height: 360px; object-fit: cover; transition: transform 0.4s ease; }
.feature-image:hover img { transform: scale(1.03); }
.feature-content h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.feature-content > p { font-size: 15px; color: var(--text-secondary); margin-bottom: 28px; line-height: 1.8; }
.feature-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.feature-item { display: flex; gap: 14px; align-items: flex-start; }
.feature-icon {
  width: 40px; height: 40px; border-radius: 10px; background: var(--primary);
  display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0;
}
.feature-icon svg { width: 20px; height: 20px; }
.feature-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 2px; }
.feature-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.btn-dark { background: var(--primary); color: #fff; }
.btn-dark:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(15,118,110,0.3); }
.btn-dark:active { transform: scale(0.97); }

/* 热门内容 */
.grid-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border-radius: 16px; border: 1px solid var(--border);
  overflow: hidden; transition: all 0.3s ease; display: block; position: relative;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card-img-wrap { position: relative; overflow: hidden; border-radius: 16px 16px 0 0; }
.card-img-wrap img { width: 100%; height: 180px; object-fit: cover; transition: transform 0.4s ease; }
.card:hover .card-img-wrap img { transform: scale(1.05); }
.card-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: rgba(255,255,255,0.92); color: var(--primary);
  font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px;
}
.card-badge.hot { background: var(--accent); color: #fff; }
.card-body { padding: 20px 20px 22px; }
.card-body h3 { font-size: 18px; font-weight: 600; line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-body p { 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: 14px; }
.card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-muted); }
.card-meta .read-more { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.card-meta .read-more:hover { color: var(--primary-dark); }

/* 保障条 */
.guarantee-section { background: #fff; border-top: 1px solid var(--divider); }
.guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.guarantee-item { text-align: center; padding: 24px 16px; border-radius: 16px; transition: all 0.3s ease; }
.guarantee-item:hover { background: var(--primary); box-shadow: 0 8px 24px rgba(15,118,110,0.2); }
.guarantee-item:hover .g-icon { background: var(--accent); color: #1F2937; }
.guarantee-item:hover h3, .guarantee-item:hover p { color: #fff; }
.g-icon {
  width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 16px;
  background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center;
  transition: all 0.3s ease;
}
.g-icon svg { width: 28px; height: 28px; }
.guarantee-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; transition: color 0.3s ease; }
.guarantee-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; transition: color 0.3s ease; }

/* 评价轮播 */
.testimonial-section { background: var(--bg); }
.testi-slider { position: relative; max-width: 1080px; margin: 0 auto; }
.testi-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; transition: all 0.3s ease; }
.testi-card {
  background: #fff; border-radius: 16px; border: 1px solid var(--border);
  padding: 32px 28px; box-shadow: var(--shadow-card);
}
.testi-stars { display: flex; gap: 2px; margin-bottom: 16px; color: var(--accent); }
.testi-stars svg { width: 18px; height: 18px; fill: currentColor; }
.testi-text { font-size: 15px; line-height: 1.7; color: var(--text); margin-bottom: 20px; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; }
.testi-author-name { font-size: 14px; font-weight: 600; }
.testi-author-role { font-size: 12px; color: var(--text-muted); }
.testi-dots { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
.testi-dot { width: 8px; height: 8px; border-radius: 999px; background: #CBD5E0; transition: all 0.3s ease; }
.testi-dot.active { width: 28px; background: var(--primary); }
.testi-arrows { display: flex; justify-content: center; gap: 16px; margin-top: 24px; }
.testi-arrow {
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; background: #fff;
  transition: all 0.25s ease; color: var(--text-secondary);
}
.testi-arrow:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* FAQ */
.faq-section { background: #fff; }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: all 0.3s ease; }
.faq-item.active { border-color: var(--primary); box-shadow: 0 4px 16px rgba(15,118,110,0.08); }
.faq-question {
  width: 100%; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center;
  font-size: 16px; font-weight: 600; color: var(--text); text-align: left; transition: all 0.25s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-icon { font-size: 22px; font-weight: 300; color: var(--primary); transition: transform 0.3s ease; flex-shrink: 0; margin-left: 12px; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.active .faq-answer { padding: 0 24px 20px; max-height: 200px; }
.faq-answer p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* 最新资讯 */
.news-section { background: var(--bg); border-top: 1px solid var(--divider); }
.news-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.news-featured-card {
  background: #fff; border-radius: 16px; border: 1px solid var(--border); overflow: hidden;
  display: block; transition: all 0.3s ease; box-shadow: var(--shadow-card);
}
.news-featured-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-featured-card .f-img { position: relative; overflow: hidden; }
.news-featured-card .f-img img { width: 100%; height: 260px; object-fit: cover; transition: transform 0.4s ease; }
.news-featured-card:hover .f-img img { transform: scale(1.04); }
.news-featured-card .f-body { padding: 24px; }
.news-featured-card h3 { font-size: 20px; font-weight: 700; margin: 12px 0 8px; line-height: 1.4; }
.news-featured-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.news-featured-card .f-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-muted); }
.badge-pill {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: var(--primary); color: #fff; font-size: 12px; font-weight: 600;
}
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  display: flex; gap: 16px; align-items: center; padding: 16px 18px;
  background: #fff; border-radius: 12px; border: 1px solid var(--border);
  transition: all 0.25s ease;
}
.news-item:hover { border-color: var(--primary); box-shadow: 0 4px 12px rgba(15,118,110,0.06); transform: translateX(4px); }
.news-item .n-cat {
  flex-shrink: 0; background: var(--primary); color: #fff; font-size: 12px;
  padding: 4px 12px; border-radius: 999px; font-weight: 600;
}
.news-item .n-info { flex: 1; min-width: 0; }
.news-item h4 { font-size: 15px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 2px; }
.news-item p { font-size: 13px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-item .n-date { font-size: 12px; color: var(--text-muted); }
.news-item .n-arrow { color: var(--primary); flex-shrink: 0; font-size: 18px; }
.news-empty {
  grid-column: 1 / -1; background: #fff; border-radius: 16px; border: 1px dashed var(--border);
  padding: 60px; text-align: center; color: var(--text-muted);
}
.news-empty .empty-icon { font-size: 40px; margin-bottom: 12px; }

/* CTA */
.cta-section {
  background: linear-gradient(135deg, #0F766E, #084C47);
  position: relative; overflow: hidden; padding: 80px 0;
}
.cta-section::before {
  content: ''; position: absolute; top: -40px; right: -40px; width: 220px; height: 220px;
  border-radius: 50%; background: rgba(255,255,255,0.06);
}
.cta-section::after {
  content: ''; position: absolute; bottom: -60px; left: -20px; width: 160px; height: 160px;
  border-radius: 50%; background: rgba(245,158,11,0.15);
}
.cta-wrap { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-wrap h2 { font-size: clamp(24px, 3vw, 36px); color: #fff; font-weight: 700; margin-bottom: 16px; letter-spacing: -0.01em; }
.cta-wrap p { color: rgba(255,255,255,0.8); font-size: 15px; margin-bottom: 32px; line-height: 1.7; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: #F3F4F6; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.btn-ghost-white { border: 2px solid rgba(255,255,255,0.6); color: #fff; background: transparent; }
.btn-ghost-white:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

/* 页脚 */
.site-footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.?fr; gap: 48px; padding-bottom: 48px; }
.footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-name { color: #fff; font-size: 20px; }
.footer-brand .brand-sub { color: rgba(255,255,255,0.5); }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 12px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 10px; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7);
  transition: all 0.25s ease;
}
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-social svg { width: 18px; height: 18px; }
.footer-col h3 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,0.55); transition: all 0.25s ease; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; line-height: 1.6; }
.footer-contact svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 12px; color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* 移动端底部Tab */
.mobile-tab {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 150;
  height: 56px; background: #fff; border-top: 1px solid var(--border);
  grid-template-columns: repeat(4, 1fr); box-shadow: 0 -2px 12px rgba(0,0,0,0.05);
}
.mobile-tab a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; font-size: 11px; color: var(--text-muted); transition: all 0.2s ease; }
.mobile-tab a.active { color: var(--primary); }
.mobile-tab a:active { transform: scale(0.95); }
.mobile-tab svg { width: 22px; height: 22px; }
.mobile-tab a:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; border-radius: 8px; }

/* 响应式 */
@media (max-width: 1024px) {
  .grid-cards { grid-template-columns: repeat(2, 1fr); }
  .testi-track { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .testi-track .testi-card:nth-child(n+2) { display: none; }
  .feature-grid { gap: 40px; }
}
@media (max-width: 768px) {
  .site-header { display: none; }
  .mobile-header { display: flex; }
  body { padding-bottom: 56px; }
  .mobile-tab { display: grid; }
  .container { padding: 0 20px; }
  .section-pad { padding: 48px 0; }
  .hero { min-height: 80vh; }
  .hero-content { grid-template-columns: 1fr; gap: 32px; padding: 100px 0 48px; }
  .hero-image { max-width: 480px; margin: 0 auto; }
  .hero-image img { height: 260px; }
  .hero-stats { gap: 24px; }
  .hero-stat strong { font-size: 20px; }
  .hero-stat + .hero-stat { padding-left: 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-image img { height: 240px; }
  .grid-cards { grid-template-columns: 1fr; }
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .news-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section-head { margin-bottom: 36px; }
  .trust-wrap { gap: 24px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .hero-stat + .hero-stat { border-left: none; padding-left: 0; border-top: 1px solid rgba(255,255,255,0.2); padding-top: 16px; }
  .guarantee-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .news-item { flex-wrap: wrap; }
  .news-item .n-info { width: 100%; }
}

/* roulang page: article */
:root {
  --primary: #0F766E;
  --primary-dark: #0D6E65;
  --primary-light: #14b8a6;
  --accent: #F59E0B;
  --bg: #F8FAFA;
  --dark: #0F1A1A;
  --text: #1F2937;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --border: #E2E8F0;
  --border-light: #EEF2F6;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.10);
  --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  height: 64px;
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(15,118,110,0.3);
}
.brand-name { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.brand-sub { font-size: 12px; color: var(--text-muted); display: block; letter-spacing: 0.06em; }
.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-link {
  font-size: 15px; font-weight: 500; color: var(--text-secondary);
  position: relative; padding: 8px 2px; white-space: nowrap;
}
.nav-link::after {
  content: ""; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: var(--primary); border-radius: 2px; transition: width 0.3s ease;
}
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link.active::after { width: 100%; }
.nav-cta {
  background: var(--primary); color: #fff; font-size: 15px; font-weight: 600;
  padding: 9px 22px; border-radius: var(--radius-sm); transition: var(--transition);
  flex-shrink: 0;
}
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(15,118,110,0.3); }
.nav-cta:active { transform: translateY(0) scale(0.98); }
.nav-cta:focus-visible { outline: 2px solid var(--primary-light); outline-offset: 2px; }
.nav-toggle { display: none; }

/* 面包屑 */
.breadcrumb { padding: 24px 0 0; font-size: 13px; color: var(--text-muted); max-width: 800px; margin: 0 auto; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 8px; color: #CBD5E1; }

/* 文章页主区 */
.article-main { padding: 32px 0 64px; }
.article-header { max-width: 800px; margin: 0 auto 32px; }
.article-category {
  display: inline-block; background: rgba(15,118,110,0.1); color: var(--primary);
  font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: 999px; margin-bottom: 16px;
}
.article-title {
  font-size: clamp(26px, 4vw, 38px); font-weight: 800; line-height: 1.25;
  letter-spacing: -0.02em; color: var(--text); margin-bottom: 18px;
}
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; font-size: 13px; color: var(--text-muted); }
.meta-item { display: flex; align-items: center; gap: 6px; }
.meta-item svg { width: 14px; height: 14px; }
.article-cover { max-width: 800px; margin: 0 auto 40px; }
.article-cover img { width: 100%; border-radius: var(--radius-lg); object-fit: cover; aspect-ratio: 16/9; box-shadow: var(--shadow-sm); }

/* 正文 */
.article-content { max-width: 728px; margin: 0 auto; font-size: 16px; line-height: 1.8; color: #374151; }
.article-content > p { margin-bottom: 28px; }
.article-content h2 { font-size: 24px; font-weight: 700; color: var(--text); margin: 40px 0 20px; letter-spacing: -0.01em; }
.article-content h3 { font-size: 19px; font-weight: 600; color: var(--text); margin: 32px 0 16px; }
.article-content blockquote {
  border-left: 4px solid var(--primary); background: rgba(15,118,110,0.05);
  padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}
.article-content ul, .article-content ol { margin: 20px 0 28px; padding-left: 20px; }
.article-content ul li { list-style: disc; margin-bottom: 10px; }
.article-content ol li { list-style: decimal; margin-bottom: 10px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-content table th, .article-content table td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content table th { background: #f1f5f5; font-weight: 600; }
.article-content figure { margin: 32px 0; }
.article-content figcaption { font-size: 13px; color: var(--text-muted); text-align: center; margin-top: 8px; }
.article-content a { color: var(--primary); font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--primary-dark); }
.article-content code { background: #f1f5f5; padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.article-content pre { background: var(--dark); color: #e2e8f0; padding: 20px; border-radius: var(--radius-sm); overflow-x: auto; margin: 24px 0; }
.article-content pre code { background: none; color: inherit; padding: 0; }

/* 空态 */
.empty-state { max-width: 728px; margin: 60px auto; text-align: center; padding: 60px 20px; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.empty-state .empty-icon { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 50%; background: rgba(15,118,110,0.08); display: flex; align-items: center; justify-content: center; color: var(--primary); }
.empty-state h2 { font-size: 20px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.empty-state p { color: var(--text-muted); margin-bottom: 24px; }
.empty-state a { display: inline-block; background: var(--primary); color: #fff; padding: 10px 28px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; }

/* 标签 */
.article-tags { max-width: 728px; margin: 40px auto 0; display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  display: inline-block; background: #fff; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 13px; padding: 6px 16px; border-radius: 999px; transition: var(--transition);
}
.tag:hover { border-color: var(--primary); color: var(--primary); background: rgba(15,118,110,0.05); }

/* 上一篇/下一篇 */
.prev-next { max-width: 728px; margin: 40px auto 0; display: flex; flex-direction: column; gap: 12px; }
.prev-next a {
  display: flex; align-items: center; justify-content: space-between; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 20px;
  font-size: 14px; color: var(--text-secondary); transition: var(--transition);
}
.prev-next a:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.prev-next .pn-label { font-size: 12px; color: var(--text-muted); flex-shrink: 0; margin-right: 12px; font-weight: 500; }
.prev-next .pn-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 相关推荐 */
.related-section { padding: 64px 0; background: #fff; border-top: 1px solid var(--border-light); }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.section-title { font-size: clamp(22px, 3vw, 30px); font-weight: 700; color: var(--text); letter-spacing: -0.01em; }
.section-link { font-size: 14px; color: var(--primary); font-weight: 500; display: flex; align-items: center; gap: 4px; }
.section-link:hover { color: var(--primary-dark); gap: 8px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* 卡片 */
.content-card {
  background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border);
  overflow: hidden; transition: var(--transition); height: 100%; display: flex; flex-direction: column;
}
.content-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card-media { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.content-card:hover .card-media img { transform: scale(1.03); }
.card-badge {
  position: absolute; top: 12px; left: 12px; background: rgba(15,118,110,0.9);
  color: #fff; font-size: 12px; font-weight: 500; padding: 4px 12px; border-radius: 999px; backdrop-filter: blur(4px);
}
.card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.card-title { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.4; }
.card-excerpt { font-size: 14px; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; flex: 1; }
.card-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: var(--text-muted); border-top: 1px solid var(--border-light); padding-top: 12px; }
.card-meta .read-more { margin-left: auto; color: var(--primary); font-weight: 500; font-size: 13px; }
.card-meta .read-more:hover { color: var(--primary-dark); }

/* CTA */
.cta-section { padding: 0 0 64px; }
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 20px; padding: 56px 48px; text-align: center; position: relative; overflow: hidden; margin-top: 64px;
}
.cta-banner::before {
  content: ""; position: absolute; top: -60px; right: -60px; width: 200px; height: 200px;
  border-radius: 50%; background: rgba(255,255,255,0.06);
}
.cta-banner::after {
  content: ""; position: absolute; bottom: -40px; left: -40px; width: 140px; height: 140px;
  border-radius: 50%; background: rgba(255,255,255,0.04);
}
.cta-banner h2 { color: #fff; font-size: clamp(22px, 3vw, 30px); font-weight: 700; position: relative; z-index: 1; margin-bottom: 12px; }
.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: 28px; position: relative; z-index: 1; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-white {
  background: #fff; color: var(--primary); font-weight: 600; padding: 12px 32px;
  border-radius: var(--radius-sm); position: relative; z-index: 1; transition: var(--transition); display: inline-block;
}
.cta-banner .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.cta-banner .btn-white:active { transform: translateY(0) scale(0.98); }

/* Footer */
.site-footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: rgba(255,255,255,0.5); }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 10px; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7); transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.footer-social svg { width: 16px; height: 16px; }
.footer-col h3 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact li { display: flex; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.6); align-items: flex-start; margin-bottom: 12px; }
.footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; color: rgba(255,255,255,0.4); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 24px 0; text-align: center; font-size: 12px; color: rgba(255,255,255,0.4); }

/* 移动端 Tab */
.mobile-tabs { display: none; }

/* 响应式 */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .nav-toggle {
    display: flex; width: 40px; height: 40px; border-radius: 8px;
    align-items: center; justify-content: center; color: var(--text); transition: var(--transition);
  }
  .nav-toggle:hover { background: #f1f5f5; }
  .nav-toggle svg { width: 22px; height: 22px; }
  .nav-menu {
    position: fixed; top: 64px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 24px 24px 32px; gap: 20px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-hover); transform: translateY(-120%); opacity: 0; transition: var(--transition); z-index: 99;
  }
  .nav-menu.open { transform: translateY(0); opacity: 1; }
  .nav-link { font-size: 16px; padding: 10px 4px; width: 100%; border-bottom: 1px solid var(--border-light); }
  .nav-cta { display: none; }
  .mobile-tabs {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; height: 56px;
    background: #fff; border-top: 1px solid var(--border); z-index: 100; align-items: center; justify-content: space-around;
  }
  .mobile-tab {
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    font-size: 11px; color: var(--text-muted); padding: 6px 12px; border-radius: 12px; transition: var(--transition);
  }
  .mobile-tab.active { color: var(--primary); background: rgba(15,118,110,0.08); }
  .mobile-tab svg { width: 20px; height: 20px; }
  .mobile-tab:active { transform: scale(0.95); }
  body { padding-bottom: 56px; }
  .container { padding: 0 16px; }
  .breadcrumb { padding: 16px 16px 0; }
  .article-main { padding: 24px 0 48px; }
  .article-meta { gap: 14px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-banner { padding: 40px 24px; border-radius: 16px; margin-top: 48px; }
  .prev-next a { padding: 14px 16px; }
}
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .mobile-tabs { display: none; }
}

/* roulang page: category1 */
:root {
    --primary: #0f766e;
    --primary-dark: #0d6e65;
    --primary-darker: #134e4a;
    --primary-light: #14b8a6;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --bg: #f8fafa;
    --white: #ffffff;
    --text: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --border: #e2e8f0;
    --border-light: #eef2f6;
    --dark: #0f1a1a;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.14);
    --container: 1200px;
    --font-primary: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-primary);
    font-size: 15px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    padding-bottom: 56px;
  }

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

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

  ul,
  ol {
    list-style: none;
  }

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

  .container {
    width: 100%;
    max-width: var(--container) !important;
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    height: 64px;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    transition: box-shadow 0.3s ease, background 0.3s ease;
  }

  .site-header.scrolled {
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  }

  .nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
  }

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

  .brand-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-darker));
    color: #fff;
    border-radius: 12px;
  }

  .brand-name {
    display: block;
    font-size: 20px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--primary-darker);
    letter-spacing: -0.02em;
  }

  .brand-sub {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
  }

  .nav-link {
    position: relative;
    display: inline-block;
    padding: 10px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: color 0.25s ease, background 0.25s ease;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
  }

  .nav-link:hover {
    color: var(--primary);
    background: rgba(15, 118, 110, 0.06);
  }

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

  .nav-link.active::after {
    transform: scaleX(1);
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: var(--primary);
    border-radius: var(--radius-sm);
    transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    white-space: nowrap;
  }

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

  .nav-cta:active {
    transform: translateY(0) scale(0.98);
  }

  .nav-cta:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--primary);
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: 8px;
    background: rgba(15, 118, 110, 0.06);
  }

  .nav-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--primary-darker);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .mobile-tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 250;
    display: flex;
    align-items: stretch;
    height: 56px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-light);
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.05);
  }

  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 2px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.25s ease, transform 0.2s ease;
  }

  .tab-item svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .tab-item:hover {
    color: var(--primary);
  }

  .tab-item:active {
    transform: scale(0.94);
  }

  .tab-item.active {
    color: var(--primary);
    font-weight: 600;
  }

  .tab-item.active svg {
    stroke-width: 2.4;
  }

  .page-hero {
    position: relative;
    background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    min-height: 400px;
    display: flex;
    align-items: center;
    padding: 72px 0;
  }

  .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.92), rgba(15, 26, 26, 0.82));
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
    margin-left: 0;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 20px;
  }

  .breadcrumb a {
    color: rgba(255, 255, 255, 0.72);
    transition: color 0.25s ease;
  }

  .breadcrumb a:hover {
    color: #ffffff;
  }

  .breadcrumb-sep {
    color: rgba(255, 255, 255, 0.45);
  }

  .breadcrumb .current {
    color: #ffffff;
    font-weight: 500;
  }

  .hero-content h1 {
    font-size: clamp(32px, 5vw, 50px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 20px;
  }

  .hero-text {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.88);
    max-width: 620px;
    margin-bottom: 32px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .section {
    padding: 72px 0;
  }

  .section-white {
    background: var(--white);
  }

  .section-tint {
    background: linear-gradient(180deg, #f0fdfa, #f8fafa);
  }

  .section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 48px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(15, 118, 110, 0.08);
    border-radius: 999px;
    margin-bottom: 16px;
    letter-spacing: 0.04em;
  }

  .section-head h2 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--text);
    margin-bottom: 12px;
  }

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

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

  .feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

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

  .feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(15, 118, 110, 0.10);
    color: var(--primary);
    margin-bottom: 20px;
  }

  .feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .feature-card h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
  }

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

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

  .card-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

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

  .card-link {
    display: block;
  }

  .card-thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e5ecec;
  }

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

  .card-item:hover .card-thumb img {
    transform: scale(1.04);
  }

  .card-badge {
    position: absolute;
    left: 14px;
    top: 14px;
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-darker);
    background: rgba(255, 255, 255, 0.92);
    border-radius: 999px;
    backdrop-filter: blur(6px);
  }

  .card-body {
    padding: 22px 22px 20px;
  }

  .card-body h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.45;
    color: var(--text);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

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

  .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
  }

  .card-meta .arrow {
    font-weight: 600;
    color: var(--primary);
    transition: transform 0.25s ease;
  }

  .card-item:hover .card-meta .arrow {
    transform: translateX(4px);
  }

  .scene-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
  }

  .scene-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }

  .scene-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 280px;
  }

  .scene-content .section-tag {
    margin-bottom: 14px;
  }

  .scene-content h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--text);
    margin-bottom: 14px;
  }

  .scene-content > p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
  }

  .scene-list {
    display: grid;
    gap: 16px;
    margin-bottom: 28px;
  }

  .scene-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    line-height: 1.65;
    color: var(--text-secondary);
  }

  .scene-list-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(15, 118, 110, 0.10);
    color: var(--primary);
    margin-top: 2px;
  }

  .scene-list-icon svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

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

  .step-item {
    position: relative;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 26px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

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

  .step-num {
    position: absolute;
    top: 18px;
    right: 20px;
    font-size: 44px;
    font-weight: 800;
    color: rgba(15, 118, 110, 0.08);
    line-height: 1;
  }

  .step-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    position: relative;
  }

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

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

  .faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 14px;
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
  }

  .faq-item.open {
    border-color: rgba(15, 118, 110, 0.30);
    box-shadow: var(--shadow-sm);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 22px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: background 0.25s ease;
  }

  .faq-question:hover {
    background: rgba(15, 118, 110, 0.04);
  }

  .faq-icon {
    position: relative;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: var(--primary);
    border-radius: 2px;
    transition: transform 0.3s ease;
  }

  .faq-icon::before {
    width: 14px;
    height: 2px;
    top: 10px;
    left: 4px;
  }

  .faq-icon::after {
    width: 2px;
    height: 14px;
    top: 4px;
    left: 10px;
  }

  .faq-item.open .faq-icon::after {
    transform: scaleY(0);
  }

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

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

  .faq-answer p {
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-secondary);
  }

  .cta-banner {
    position: relative;
    background: linear-gradient(135deg, var(--primary), var(--primary-darker));
    border-radius: 20px;
    padding: 56px 32px;
    text-align: center;
    overflow: hidden;
  }

  .cta-banner::before,
  .cta-banner::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
  }

  .cta-banner::before {
    width: 200px;
    height: 200px;
    top: -80px;
    left: -40px;
  }

  .cta-banner::after {
    width: 140px;
    height: 140px;
    bottom: -50px;
    right: 20px;
  }

  .cta-banner h2 {
    position: relative;
    z-index: 1;
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
  }

  .cta-banner p {
    position: relative;
    z-index: 1;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.82);
    max-width: 560px;
    margin: 0 auto 28px;
  }

  .cta-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 30px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    transition: all 0.25s ease;
    cursor: pointer;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(15, 118, 110, 0.22);
  }

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

  .btn-primary:active {
    transform: translateY(0) scale(0.98);
    filter: brightness(0.94);
  }

  .btn-primary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px #ffffff, 0 0 0 4px var(--primary);
  }

  .btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.8);
    color: #ffffff;
  }

  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #ffffff;
  }

  .btn-outline:active {
    transform: scale(0.98);
  }

  .btn-outline:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.8);
  }

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

  .btn-light:hover {
    background: rgba(255, 255, 255, 0.94);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }

  .btn-light:active {
    transform: translateY(0) scale(0.98);
  }

  .btn-light:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary), 0 0 0 4px rgba(255, 255, 255, 0.6);
  }

  .btn-outline-light {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.75);
    color: #ffffff;
  }

  .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: #ffffff;
  }

  .btn-outline-light:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary), 0 0 0 4px rgba(255, 255, 255, 0.6);
  }

  .site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.72);
    padding: 64px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    padding-bottom: 48px;
  }

  .footer-brand .brand {
    margin-bottom: 16px;
  }

  .footer-brand .brand-icon {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
  }

  .footer-brand .brand-name {
    color: #ffffff;
  }

  .footer-brand .brand-sub {
    color: rgba(255, 255, 255, 0.6);
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    max-width: 320px;
    margin-bottom: 20px;
  }

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

  .footer-social a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
    transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
  }

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

  .footer-social svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .footer-col h3 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
  }

  .footer-col ul {
    display: grid;
    gap: 10px;
  }

  .footer-col li {
    font-size: 14px;
  }

  .footer-col a {
    color: rgba(255, 255, 255, 0.62);
    transition: color 0.25s ease, padding-left 0.25s ease;
  }

  .footer-col a:hover {
    color: #ffffff;
    padding-left: 4px;
  }

  .footer-contact li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.62);
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.10);
    padding: 24px 0;
    text-align: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
  }

  .footer-bottom a:hover {
    color: #ffffff;
  }

  .icon-check {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--primary-ligth, #2dd4bf);
  }

  @media (min-width: 520px) {
    .feature-grid {
      grid-template-columns: repeat(2, 1fr);
    }

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

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

  @media (min-width: 768px) {
    body {
      padding-bottom: 0;
      font-size: 16px;
    }

    .container {
      padding-left: 32px;
      padding-right: 32px;
    }

    .nav-toggle {
      display: none;
    }

    .nav-menu {
      display: flex;
      flex-direction: row;
      position: static;
      width: auto;
      height: auto;
      background: transparent;
      box-shadow: none;
      transform: none;
      padding: 0;
    }

    .nav-cta {
      display: inline-flex;
    }

    .mobile-tabbar {
      display: none;
    }

    .page-hero {
      min-height: 420px;
      padding: 80px 0;
    }

    .section {
      padding: 96px 0;
    }

    .feature-grid {
      grid-template-columns: repeat(4, 1fr);
    }

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

    .scene-wrap {
      grid-template-columns: 1fr 1fr;
      gap: 56px;
    }

    .steps-grid {
      grid-template-columns: repeat(4, 1fr);
    }

    .cta-banner {
      padding: 72px 48px;
    }

    .footer-grid {
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 48px;
    }
  }

  @media (max-width: 767px) {
    .nav-toggle {
      display: flex;
    }

    .nav-cta {
      display: none;
    }

    .nav-menu {
      position: fixed;
      top: 64px;
      right: 12px;
      width: 78%;
      max-width: 300px;
      background: var(--white);
      border-radius: 16px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-light);
      flex-direction: column;
      align-items: stretch;
      padding: 16px;
      gap: 6px;
      transform: translateX(120%);
      transition: transform 0.3s ease;
      z-index: 210;
    }

    .nav-menu.open {
      transform: translateX(0);
    }

    .nav-menu .nav-link {
      padding: 12px 14px;
      border-radius: 10px;
    }

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

    .nav-menu .nav-link.active {
      background: rgba(15, 118, 110, 0.10);
      color: var(--primary);
    }

    .page-hero {
      min-height: 360px;
      padding: 56px 0;
    }

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

    .hero-text {
      font-size: 15px;
    }

    .section {
      padding: 56px 0;
    }

    .cta-banner {
      padding: 44px 22px;
    }

    .faq-question {
      font-size: 15px;
      padding: 18px 18px;
    }

    .faq-item.open .faq-answer {
      padding: 0 18px 18px;
    }
  }

  @media (min-width: 1024px) {
    .card-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }