/* roulang page: index */
:root {
  --primary: #1D6B57;
  --primary-dark: #123A2E;
  --primary-light: #2F8F76;
  --secondary: #E8894A;
  --secondary-hover: #D1723A;
  --accent: #D4A72C;
  --bg: #F5F3EE;
  --surface: #FFFFFF;
  --text: #1E2D28;
  --text-muted: #6A7B74;
  --border: #E6E1D7;
  --shadow-card: 0 2px 12px rgba(18,58,46,0.06);
  --shadow-card-hover: 0 8px 24px rgba(18,58,46,0.12);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 20px;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-light); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
ul, ol { list-style: none; }

.container { max-width: 1280px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding: 96px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-head h2 { font-size: 1.5rem; font-weight: 700; letter-spacing: 0.01em; color: var(--text); margin-bottom: 12px; }
.section-head p { color: var(--text-muted); font-size: 0.95rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; border: none; cursor: pointer; background: none; padding: 12px 28px; border-radius: var(--radius-btn); font-size: 0.95rem; transition: all 0.25s ease; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-secondary:hover { background: rgba(29,107,87,0.06); color: var(--primary); transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(0); }
.btn-cta { background: var(--secondary); color: #fff; border-radius: 50px; padding: 16px 48px; font-size: 1rem; }
.btn-cta:hover { background: var(--secondary-hover); color: #fff; transform: scale(1.02); box-shadow: 0 8px 24px rgba(232,137,74,0.35); }
.btn-cta:active { transform: scale(0.99); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: 6px; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(245,243,238,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); transition: background 0.3s ease, box-shadow 0.3s ease; }
.site-header.scrolled { background: var(--bg); box-shadow: 0 2px 20px rgba(18,58,46,0.08); border-bottom: 1px solid var(--border); }
.header-top { border-bottom: 1px solid rgba(230,225,215,0.6); }
.header-top .container { display: flex; align-items: center; height: 56px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; }
.logo-text { font-size: 1.15rem; font-weight: 700; color: var(--text); letter-spacing: 0.01em; }
.logo-text span { color: var(--primary); }
.nav-search { flex: 1; max-width: 360px; display: flex; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-btn); overflow: hidden; transition: border-color 0.2s, box-shadow 0.2s; }
.nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(29,107,87,0.12); }
.nav-search input { flex: 1; border: none; outline: none; padding: 10px 14px; font-size: 0.85rem; color: var(--text); background: transparent; }
.nav-search button { border: none; background: transparent; padding: 10px 14px; color: var(--text-muted); cursor: pointer; font-size: 0.85rem; transition: color 0.2s; }
.nav-search button:hover { color: var(--primary); }
.header-cta { flex-shrink: 0; }
.hamburger { display: none; background: none; border: none; font-size: 1.3rem; color: var(--text); cursor: pointer; padding: 8px; }

.header-nav .container { display: flex; align-items: center; height: 44px; gap: 28px; overflow-x: auto; }
.header-nav .nav-link { font-size: 0.9rem; font-weight: 500; color: var(--text); position: relative; white-space: nowrap; padding: 4px 2px; }
.header-nav .nav-link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--primary); border-radius: 2px; transition: width 0.25s ease; }
.header-nav .nav-link:hover { color: var(--primary); }
.header-nav .nav-link:hover::after { width: 100%; }
.header-nav .nav-link.active { color: var(--primary); }
.header-nav .nav-link.active::after { width: 100%; }
.hot-keywords { display: flex; align-items: center; gap: 12px; margin-left: auto; white-space: nowrap; }
.hot-keywords span { font-size: 0.78rem; color: var(--text-muted); }
.hot-keywords a { font-size: 0.78rem; color: var(--text-muted); padding: 2px 10px; border: 1px solid var(--border); border-radius: var(--radius-tag); transition: all 0.2s; }
.hot-keywords a:hover { color: var(--primary); border-color: var(--primary); background: rgba(29,107,87,0.04); }

/* Mobile Nav */
.mobile-nav { display: none; position: fixed; inset: 0; z-index: 2000; background: var(--bg); flex-direction: column; padding: 80px 24px 24px; }
.mobile-nav.open { display: flex; }
.mobile-nav-close { position: absolute; top: 16px; right: 16px; background: none; border: none; font-size: 1.4rem; color: var(--text); cursor: pointer; padding: 8px; }
.mobile-nav a { font-size: 1.125rem; line-height: 48px; color: var(--text); border-bottom: 1px solid var(--border); }
.mobile-nav a.active { color: var(--primary); font-weight: 600; }
.mobile-nav .mobile-hot { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.mobile-nav .mobile-hot a { font-size: 0.8rem; line-height: 30px; border: 1px solid var(--border); border-radius: var(--radius-tag); padding: 0 14px; border-bottom: none; }

/* Hero */
.hero { position: relative; padding: 80px 0 100px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(18,58,46,0.92), rgba(18,58,46,0.75)); }
.hero .container { position: relative; z-index: 2; display: flex; align-items: center; gap: 60px; }
.hero-left { flex: 0 0 55%; max-width: 55%; }
.hero-right { flex: 0 0 45%; max-width: 45%; display: flex; justify-content: center; }
.hero h1 { font-size: 2.75rem; font-weight: 700; color: #fff; letter-spacing: 0.01em; margin-bottom: 16px; line-height: 1.25; }
.hero-subtitle { font-size: 1.05rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; line-height: 1.8; max-width: 480px; }
.hero-btns { display: flex; gap: 16px; margin-bottom: 36px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stats .stat { text-align: left; }
.hero-stats .stat .num { font-size: 1.6rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.hero-stats .stat .label { font-size: 0.8rem; color: rgba(255,255,255,0.8); margin-top: 4px; }
.hero-phone { width: 260px; max-height: 520px; aspect-ratio: 9/16; background: #fff; border-radius: 24px; border: 4px solid #fff; box-shadow: 0 20px 60px rgba(0,0,0,0.3); overflow: hidden; position: relative; }
.hero-phone img { width: 100%; height: 100%; object-fit: cover; }
.phone-badge { position: absolute; top: 16px; left: 16px; background: var(--accent); color: #1a1a1a; font-size: 0.75rem; font-weight: 600; padding: 4px 14px; border-radius: 4px; letter-spacing: 0.02em; }

/* Data Bar */
.data-bar { background: var(--primary-dark); padding: 40px 0; }
.data-bar .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.data-bar .item { text-align: center; flex: 1; min-width: 150px; }
.data-bar .item .num { font-size: 1.8rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.data-bar .item .label { font-size: 0.8rem; color: rgba(255,255,255,0.85); margin-top: 6px; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { position: relative; border-radius: var(--radius-card); overflow: hidden; aspect-ratio: 3/4; background: var(--surface); box-shadow: var(--shadow-card); transition: transform 0.3s ease, box-shadow 0.3s ease; display: block; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); }
.feature-card img { width: 100%; height: 100%; object-fit: cover; }
.feature-badge { position: absolute; top: 14px; left: 14px; background: var(--accent); color: #1a1a1a; font-size: 0.75rem; font-weight: 600; padding: 3px 12px; border-radius: 4px; z-index: 2; }
.feature-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(18,58,46,0.85), transparent 60%); display: flex; flex-direction: column; justify-content: flex-end; padding: 20px; }
.feature-title { color: #fff; font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.feature-data { color: rgba(255,255,255,0.8); font-size: 0.8rem; display: flex; gap: 12px; }
.feature-hover-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.85); background: var(--primary); color: #fff; padding: 10px 24px; border-radius: var(--radius-btn); font-size: 0.85rem; font-weight: 600; opacity: 0; transition: all 0.3s ease; }
.feature-card:hover .feature-hover-btn { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.feature-card:hover .feature-overlay { background: linear-gradient(to top, rgba(18,58,46,0.9), rgba(18,58,46,0.1) 70%); }

/* Planting List */
.list-card { background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 32px; }
.list-item { display: flex; align-items: center; gap: 20px; padding: 18px 16px; border-bottom: 1px solid var(--border); transition: background 0.2s; border-radius: 6px; }
.list-item:last-child { border-bottom: none; }
.list-item:hover { background: rgba(45,106,87,0.05); }
.list-num { font-size: 2rem; font-weight: 800; color: var(--accent); width: 48px; flex-shrink: 0; line-height: 1; }
.list-title { font-size: 1rem; font-weight: 600; color: var(--text); flex: 1; min-width: 140px; }
.list-desc { flex: 2; font-size: 0.9rem; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list-link { flex-shrink: 0; font-size: 0.9rem; color: var(--primary); font-weight: 500; transition: transform 0.2s; }
.list-link:hover { text-decoration: underline; transform: translateX(2px); }

/* Reviews */
.reviews-scroll { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 16px; scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
.reviews-scroll::-webkit-scrollbar { height: 6px; }
.reviews-scroll::-webkit-scrollbar-track { background: transparent; }
.reviews-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.review-card { flex: 0 0 320px; background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 22px; transition: box-shadow 0.2s; border: 1px solid transparent; }
.review-card:hover { box-shadow: var(--shadow-card-hover); border-color: var(--border); }
.review-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--primary-light); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: 600; flex-shrink: 0; }
.review-name { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.review-stars { color: var(--accent); font-size: 0.8rem; letter-spacing: 2px; }
.review-text { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 10px; }
.review-time { font-size: 0.75rem; color: var(--border); }

/* News */
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.news-feature { background: var(--surface); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); display: block; transition: transform 0.25s, box-shadow 0.25s; }
.news-feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.news-feature img { width: 100%; height: 220px; object-fit: cover; }
.news-feature-body { padding: 24px; }
.news-feature-body h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; line-height: 1.4; color: var(--text); }
.news-feature-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 14px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-time { font-size: 0.8rem; color: var(--text-muted); }
.news-sublist { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.news-card { background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 18px; display: block; transition: transform 0.2s, box-shadow 0.2s; }
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.news-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; color: var(--text); }
.news-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tag { background: rgba(29,107,87,0.1); color: var(--primary); font-size: 0.75rem; padding: 2px 12px; border-radius: var(--radius-tag); font-weight: 500; }
.news-empty { grid-column: 1 / -1; text-align: center; padding: 60px 20px; background: var(--surface); border-radius: var(--radius-card); border: 2px dashed var(--border); }
.news-empty .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.news-empty p { color: var(--text-muted); font-size: 0.95rem; }
.news-more { text-align: center; margin-top: 32px; }

/* FAQ */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: box-shadow 0.2s; }
.faq-item:hover { box-shadow: var(--shadow-card); }
.faq-item.open { box-shadow: var(--shadow-card); border-color: var(--primary-light); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; cursor: pointer; background: none; border: none; width: 100%; text-align: left; font-size: 0.95rem; font-weight: 600; color: var(--text); }
.faq-q .icon { font-size: 0.85rem; color: var(--text-muted); transition: transform 0.3s; flex-shrink: 0; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); color: var(--primary); }
.faq-a { display: none; padding: 0 20px 16px; font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* CTA */
.cta-section { background: var(--primary-dark); position: relative; overflow: hidden; padding: 80px 0; text-align: center; }
.cta-section::before { content: ''; position: absolute; top: -40%; right: -10%; width: 400px; height: 400px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.08); }
.cta-section::after { content: ''; position: absolute; bottom: -30%; left: -5%; width: 300px; height: 300px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.06); }
.cta-section .container { position: relative; z-index: 2; }
.cta-title { font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 12px; letter-spacing: 0.01em; }
.cta-sub { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin-bottom: 36px; }
.cta-btn-wrap { display: flex; justify-content: center; }

/* Footer */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text span { color: var(--accent); }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,0.7); font-size: 0.85rem; padding: 4px 0; transition: color 0.2s, padding-left 0.2s; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact p { font-size: 0.85rem; padding: 4px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 0.8rem; color: rgba(255,255,255,0.6); }
.footer-bottom a { color: rgba(255,255,255,0.8); }
.footer-bottom a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-search { max-width: 260px; }
  .hero-left { flex-basis: 50%; max-width: 50%; }
  .hero-right { flex-basis: 50%; max-width: 50%; }
  .hero h1 { font-size: 2.2rem; }
  .hot-keywords { display: none; }
  .news-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .hero { padding: 48px 0 64px; }
  .hero .container { flex-direction: column; gap: 40px; }
  .hero-left { flex-basis: 100%; max-width: 100%; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-btns { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-right { flex-basis: 100%; max-width: 100%; }
  .hero-phone { width: 260px; max-height: 462px; }
  .hero h1 { font-size: 1.9rem; }
  .card-grid { grid-template-columns: 1fr; }
  .data-bar .container { gap: 16px; }
  .data-bar .item { min-width: 120px; }
  .data-bar .item .num { font-size: 1.4rem; }
  .news-sublist { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .header-search { display: none; }
  .header-cta { display: none; }
  .hamburger { display: block; }
  .header-nav { display: none; }
  .header-top .container { justify-content: space-between; }
  .nav-search { display: none; }
}

@media (max-width: 480px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .hero h1 { font-size: 1.6rem; }
  .hero-stats { gap: 24px; }
  .btn { width: 100%; }
  .hero-btns .btn { width: calc(50% - 8px); }
  .list-card { padding: 16px; }
  .list-item { gap: 12px; }
  .list-desc { display: none; }
  .list-num { width: 36px; font-size: 1.6rem; }
  .cta-title { font-size: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .review-card { flex-basis: 280px; }
}

/* roulang page: category1 */
:root {
    --primary: #1D6B57;
    --primary-dark: #123A2E;
    --primary-light: #2F8F76;
    --secondary: #E8894A;
    --secondary-hover: #D1723A;
    --accent: #D4A72C;
    --bg: #F5F3EE;
    --surface: #FFFFFF;
    --text: #1E2D28;
    --text-muted: #6A7B74;
    --border: #E6E1D7;
    --shadow-card: 0 2px 12px rgba(18,58,46,0.06);
    --shadow-card-hover: 0 8px 24px rgba(18,58,46,0.12);
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-tag: 20px;
    --header-top-h: 56px;
    --header-nav-h: 44px;
    --container-w: 1280px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.75;
    letter-spacing: 0.02em;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: var(--primary);
    text-decoration: none;
    transition: color .25s ease;
  }

  a:hover {
    color: var(--primary-light);
  }

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

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

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

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: .95rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    transition: all .25s ease;
    letter-spacing: .02em;
    white-space: nowrap;
  }

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

  .btn-primary:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
  }

  .btn-primary:active {
    transform: translateY(0);
  }

  .btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
  }

  .btn-outline:hover {
    background: rgba(29, 107, 87, .06);
    color: var(--primary);
  }

  .btn-convert {
    background: var(--secondary);
    color: #fff;
    border-radius: 50px;
    padding: 16px 48px;
    font-size: 1rem;
  }

  .btn-convert:hover {
    background: var(--secondary-hover);
    color: #fff;
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(232, 137, 74, .3);
  }

  .btn-disabled {
    background: var(--border);
    color: var(--text-muted);
    box-shadow: none;
    cursor: not-allowed;
  }

  /* ===== Tags ===== */
  .tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-tag);
    background: rgba(29, 107, 87, .08);
    color: var(--primary);
    font-size: .78rem;
    font-weight: 500;
  }

  .tag-hot {
    background: var(--accent);
    color: #1E2D28;
    font-size: .75rem;
    font-weight: 700;
    border-radius: 4px;
    padding: 3px 10px;
  }

  .tag-surface {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245, 243, 238, .7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background .3s ease, box-shadow .3s ease;
  }

  .site-header.scrolled {
    background: var(--bg);
    box-shadow: 0 4px 16px rgba(18, 58, 46, .06);
  }

  .header-top {
    height: var(--header-top-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-bottom: 1px solid transparent;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: .01em;
  }

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

  .logo-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: 10px;
    color: #fff;
    font-size: 1.1rem;
    flex-shrink: 0;
  }

  .logo-text {
    display: flex;
    align-items: baseline;
    gap: 2px;
  }

  .logo-text span {
    color: var(--primary);
    font-weight: 600;
  }

  .header-tools {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .header-search {
    position: relative;
  }

  .header-search input {
    height: 40px;
    width: 220px;
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0 14px 0 38px;
    background: var(--surface);
    font-size: .85rem;
    color: var(--text);
    transition: border-color .25s, box-shadow .25s;
  }

  .header-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29, 107, 87, .12);
  }

  .header-search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: .85rem;
    pointer-events: none;
  }

  .btn-sm {
    padding: 8px 20px;
    font-size: .85rem;
  }

  .header-nav {
    height: var(--header-nav-h);
    border-top: 1px solid rgba(230, 225, 215, .6);
    display: flex;
    align-items: center;
  }

  .header-nav .container {
    display: flex;
    align-items: center;
    gap: 28px;
    width: 100%;
  }

  .nav-link {
    position: relative;
    font-size: .95rem;
    font-weight: 500;
    color: var(--text);
    padding: 8px 0;
    white-space: nowrap;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
  }

  .nav-link:hover::after {
    transform: scaleX(1);
    background: var(--primary-light);
  }

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

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

  .hot-keywords {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
    font-size: .82rem;
    color: var(--text-muted);
    white-space: nowrap;
  }

  .hot-keywords a {
    color: var(--text-muted);
    font-size: .82rem;
    transition: color .2s;
  }

  .hot-keywords a:hover {
    color: var(--primary);
  }

  .menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text);
    transition: background .2s;
  }

  .menu-toggle:hover {
    background: rgba(29, 107, 87, .08);
  }

  .mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 200;
    padding: 24px;
    overflow-y: auto;
  }

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

  .mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
  }

  .mobile-menu-close {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text);
  }

  .mobile-menu-close:hover {
    background: rgba(29, 107, 87, .08);
  }

  .mobile-nav-list {
    display: flex;
    flex-direction: column;
  }

  .mobile-nav-list a {
    display: flex;
    align-items: center;
    min-height: 48px;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text);
    border-bottom: 1px solid var(--border);
  }

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

  .mobile-hot {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .mobile-hot a {
    padding: 6px 14px;
    border-radius: var(--radius-tag);
    background: var(--surface);
    border: 1px solid var(--border);
    font-size: .85rem;
    color: var(--text-muted);
  }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    min-height: 540px;
    display: flex;
    align-items: center;
    background: linear-gradient(120deg, rgba(18, 58, 46, .9), rgba(18, 58, 46, .55)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: #fff;
    padding: 72px 0;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 80% 20%, rgba(47, 143, 118, .25), transparent 60%);
  }

  .hero .container {
    position: relative;
    z-index: 2;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 48px;
    align-items: center;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .2);
    color: #fff;
    padding: 6px 16px;
    border-radius: var(--radius-tag);
    font-size: .82rem;
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
  }

  .hero-badge i {
    color: var(--accent);
  }

  .hero h1 {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: .01em;
    margin-bottom: 16px;
    color: #fff;
  }

  .hero-sub {
    font-size: 1rem;
    color: rgba(255, 255, 255, .85);
    max-width: 500px;
    margin-bottom: 32px;
    line-height: 1.85;
  }

  .hero-btns {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
  }

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

  .hero-btns .btn-primary:hover {
    background: var(--secondary);
    color: #fff;
  }

  .hero-btns .btn-outline {
    border-color: rgba(255, 255, 255, .7);
    color: #fff;
  }

  .hero-btns .btn-outline:hover {
    background: rgba(255, 255, 255, .12);
    color: #fff;
  }

  .hero-stats {
    display: flex;
    gap: 32px;
    margin-top: 40px;
    flex-wrap: wrap;
  }

  .hero-stat {
    display: flex;
    flex-direction: column;
  }

  .hero-stat strong {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .01em;
  }

  .hero-stat span {
    font-size: .8rem;
    color: rgba(255, 255, 255, .7);
  }

  .hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
  }

  .phone-frame {
    width: 260px;
    height: 520px;
    border-radius: 24px;
    border: 4px solid #fff;
    overflow: hidden;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .25);
  }

  .phone-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .phone-tag {
    position: absolute;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #1E2D28;
    font-size: .75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 50px;
    z-index: 2;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(212, 167, 44, .3);
  }

  /* ===== Stats bar ===== */
  .stats-bar {
    background: var(--primary-dark);
    padding: 32px 0;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
  }

  .stats-item strong {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .01em;
  }

  .stats-item span {
    font-size: .85rem;
    color: rgba(255, 255, 255, .75);
  }

  /* ===== Section ===== */
  .section {
    padding: 96px 0;
  }

  .section-sm {
    padding: 64px 0;
  }

  .section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
  }

  .section-header .tag {
    margin-bottom: 12px;
  }

  .section-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: .01em;
    margin-bottom: 12px;
  }

  .section-header p {
    color: var(--text-muted);
    font-size: .95rem;
    line-height: 1.8;
  }

  .section-header.left {
    text-align: left;
    margin: 0 0 40px;
  }

  /* ===== Features ===== */
  .features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .feature-card {
    background: var(--surface);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 32px 24px;
    transition: transform .3s ease, box-shadow .3s ease;
    border: 1px solid rgba(230, 225, 215, .5);
  }

  .feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
  }

  .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(29, 107, 87, .1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 20px;
  }

  .feature-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: .01em;
    margin-bottom: 10px;
  }

  .feature-card p {
    font-size: .88rem;
    color: var(--text-muted);
    line-height: 1.75;
  }

  /* ===== Scenarios ===== */
  .scenarios {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

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

  .scenario-card {
    padding: 32px 24px;
    background: var(--bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    text-align: center;
    transition: transform .3s, box-shadow .3s, background .3s;
  }

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

  .scenario-card i {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 16px;
  }

  .scenario-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
  }

  .scenario-card p {
    font-size: .86rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  /* ===== Services Showcase ===== */
  .services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .service-card {
    display: flex;
    gap: 20px;
    background: var(--surface);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    padding: 20px;
    transition: transform .3s ease, box-shadow .3s ease;
  }

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

  .service-card .cover {
    width: 160px;
    min-height: 130px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
  }

  .service-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .service-card .cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(18, 58, 46, .15), transparent);
  }

  .service-card .body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
  }

  .service-card .body h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: .01em;
  }

  .service-card .body p {
    font-size: .86rem;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
  }

  .service-card .meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
  }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: .85rem;
    font-weight: 500;
    transition: gap .25s;
  }

  .link-arrow:hover {
    gap: 10px;
    color: var(--primary-light);
  }

  /* ===== Process ===== */
  .process {
    background: var(--primary-dark);
    position: relative;
    overflow: hidden;
  }

  .process::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 280px;
    height: 280px;
    border: 40px solid rgba(255, 255, 255, .04);
    border-radius: 50%;
  }

  .process .section-header h2 {
    color: #fff;
  }

  .process .section-header p {
    color: rgba(255, 255, 255, .7);
  }

  .process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
    z-index: 2;
  }

  .process-step {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .08);
    transition: background .3s;
  }

  .process-step:hover {
    background: rgba(255, 255, 255, .09);
  }

  .step-num {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent);
    color: #1E2D28;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
  }

  .process-step h3 {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
  }

  .process-step p {
    color: rgba(255, 255, 255, .7);
    font-size: .84rem;
    line-height: 1.7;
  }

  /* ===== Reviews ===== */
  .reviews-scroll {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 16px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
  }

  .reviews-scroll::-webkit-scrollbar {
    height: 6px;
  }

  .reviews-scroll::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 6px;
  }

  .reviews-scroll::-webkit-scrollbar-track {
    background: var(--border);
    border-radius: 6px;
  }

  .review-card {
    flex: 0 0 320px;
    background: var(--surface);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    padding: 24px;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .review-user {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .review-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-light);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8rem;
    font-weight: 600;
    flex-shrink: 0;
  }

  .review-user-name {
    font-size: .9rem;
    font-weight: 600;
    color: var(--text);
  }

  .review-stars {
    color: var(--accent);
    font-size: .8rem;
    letter-spacing: 2px;
  }

  .review-text {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .review-time {
    font-size: .78rem;
    color: var(--text-muted);
  }

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow .3s;
  }

  .faq-item:hover {
    box-shadow: var(--shadow-card);
  }

  .faq-item.open {
    box-shadow: var(--shadow-card);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    font-size: .95rem;
    font-weight: 500;
    color: var(--text);
    text-align: left;
    cursor: pointer;
    background: transparent;
    transition: background .2s;
  }

  .faq-question:hover {
    background: rgba(29, 107, 87, .03);
  }

  .faq-question i {
    color: var(--text-muted);
    transition: transform .3s ease;
    flex-shrink: 0;
  }

  .faq-item.open .faq-question i {
    transform: rotate(180deg);
    color: var(--primary);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }

  .faq-answer .inner {
    padding: 0 20px 18px;
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.75;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: var(--primary-dark);
    padding: 96px 0;
    position: relative;
    overflow: hidden;
  }

  .cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    border: 80px solid rgba(255, 255, 255, .03);
    border-radius: 50%;
    pointer-events: none;
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-size: 2rem;
    color: #fff;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: .01em;
  }

  .cta-inner p {
    color: rgba(255, 255, 255, .7);
    font-size: .95rem;
    margin-bottom: 32px;
    line-height: 1.8;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, .8);
    padding: 64px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
  }

  .footer-brand .logo {
    color: #fff;
    margin-bottom: 16px;
  }

  .footer-brand .logo-icon {
    background: rgba(255, 255, 255, .1);
  }

  .footer-brand p {
    font-size: .88rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, .6);
    max-width: 300px;
  }

  .footer-col h4 {
    color: #fff;
    font-size: .95rem;
    font-weight: 600;
    margin-bottom: 20px;
  }

  .footer-col a {
    display: block;
    padding: 4px 0;
    font-size: .88rem;
    color: rgba(255, 255, 255, .6);
    transition: color .2s;
  }

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

  .footer-col p {
    font-size: .88rem;
    color: rgba(255, 255, 255, .6);
    margin-bottom: 8px;
  }

  .footer-col p i {
    width: 20px;
    color: var(--accent);
  }

  .footer-bottom {
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: .82rem;
    color: rgba(255, 255, 255, .5);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, .5);
  }

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

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .header-search input {
      width: 160px;
    }

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

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

    .hero-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .hero-visual {
      display: none;
    }

    .hot-keywords {
      display: none;
    }

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

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

  @media (max-width: 768px) {
    .header-tools .header-search {
      display: none;
    }

    .header-tools .btn-sm {
      display: none;
    }

    .menu-toggle {
      display: inline-flex;
    }

    .header-nav {
      display: none;
    }

    .section {
      padding: 64px 0;
    }

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

    .hero h1 {
      font-size: 2rem;
    }

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

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

    .service-card {
      flex-direction: column;
    }

    .service-card .cover {
      width: 100%;
      min-height: 200px;
    }

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

  @media (max-width: 520px) {
    .container {
      padding: 0 16px;
    }

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

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

    .btn {
      padding: 12px 20px;
    }

    .btn-convert {
      padding: 14px 36px;
      width: 100%;
    }

    .hero-btns {
      flex-direction: column;
      align-items: stretch;
    }

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

    .hero-stat strong {
      font-size: 1.3rem;
    }

    .review-card {
      flex-basis: 280px;
    }

    .cta-inner h2 {
      font-size: 1.5rem;
    }

    .footer-bottom {
      justify-content: center;
      text-align: center;
    }
  }

/* roulang page: article */
:root {
        --primary: #1D6B57;
        --primary-dark: #123A2E;
        --primary-light: #2F8F76;
        --secondary: #E8894A;
        --secondary-hover: #D1723A;
        --accent: #D4A72C;
        --bg: #F5F3EE;
        --surface: #FFFFFF;
        --text: #1E2D28;
        --text-muted: #6A7B74;
        --border: #E6E1D7;
        --shadow-card: 0 2px 12px rgba(18,58,46,0.06);
        --shadow-card-hover: 0 8px 24px rgba(18,58,46,0.12);
        --radius-card: 12px;
        --radius-btn: 8px;
        --radius-tag: 20px;
        --max-width: 1280px;
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background: var(--bg);
        color: var(--text);
        font-size: 0.95rem;
        line-height: 1.75;
        letter-spacing: 0.02em;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    input {
        font-family: inherit;
    }

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

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 44px;
        padding: 0 28px;
        border-radius: var(--radius-btn);
        font-size: 0.95rem;
        font-weight: 600;
        line-height: 1;
        border: 2px solid transparent;
        background: transparent;
        transition: all var(--transition);
        cursor: pointer;
    }
    .btn:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 3px;
    }
    .btn-primary {
        background: var(--primary);
        color: #fff;
    }
    .btn-primary:hover {
        background: var(--primary-light);
        transform: translateY(-2px);
        box-shadow: var(--shadow-card);
    }
    .btn-primary:active {
        transform: translateY(0);
    }
    .btn-ghost {
        background: transparent;
        border-color: var(--primary);
        color: var(--primary);
    }
    .btn-ghost:hover {
        background: rgba(29, 107, 87, 0.06);
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 200;
        background: rgba(245, 243, 238, 0.7);
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
        transition: background var(--transition), box-shadow var(--transition);
    }
    .site-header.scrolled {
        background: var(--bg);
        box-shadow: 0 1px 0 var(--border);
    }
    .header-top {
        height: 56px;
        border-bottom: 1px solid transparent;
        transition: border-color var(--transition);
    }
    .site-header.scrolled .header-top {
        border-bottom-color: var(--border);
    }
    .header-top-inner {
        display: flex;
        align-items: center;
        gap: 32px;
        height: 100%;
    }
    .logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        box-shadow: 0 4px 10px rgba(29, 107, 87, 0.25);
        transition: transform var(--transition);
    }
    .logo:hover .logo-icon {
        transform: translateY(-2px) rotate(-3deg);
    }
    .logo-text {
        font-size: 1.15rem;
        font-weight: 700;
        color: var(--text);
        letter-spacing: 0.01em;
        white-space: nowrap;
    }
    .logo-text span {
        color: var(--primary);
    }
    .header-search {
        flex: 0 1 320px;
        margin-left: auto;
    }
    .search-form {
        display: flex;
        align-items: center;
        height: 36px;
        border: 1px solid var(--border);
        border-radius: 20px;
        background: var(--surface);
        overflow: hidden;
        transition: border-color var(--transition), box-shadow var(--transition);
    }
    .search-form:focus-within {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(29, 107, 87, 0.12);
    }
    .search-form input {
        flex: 1;
        height: 100%;
        border: none;
        outline: none;
        background: transparent;
        padding: 0 16px;
        font-size: 0.85rem;
        color: var(--text);
    }
    .search-form input::placeholder {
        color: var(--text-muted);
    }
    .search-form button {
        width: 42px;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        transition: color var(--transition);
    }
    .search-form button:hover {
        color: var(--primary);
    }
    .btn-header {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 32px;
        padding: 0 18px;
        border-radius: 16px;
        background: var(--primary);
        color: #fff;
        font-size: 0.8rem;
        font-weight: 600;
        flex-shrink: 0;
        transition: all var(--transition);
    }
    .btn-header:hover {
        background: var(--primary-light);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(29, 107, 87, 0.2);
    }

    .header-nav {
        height: 44px;
        border-top: 1px solid transparent;
        transition: border-color var(--transition);
    }
    .site-header.scrolled .header-nav {
        border-top-color: rgba(230, 225, 215, 0.5);
    }
    .header-nav-inner {
        display: flex;
        align-items: center;
        gap: 28px;
        height: 100%;
    }
    .nav-link {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text);
        position: relative;
        height: 100%;
        display: flex;
        align-items: center;
        padding: 0 2px;
        white-space: nowrap;
    }
    .nav-link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 2px;
        border-radius: 2px 2px 0 0;
        background: var(--primary);
        transform: scaleX(0);
        transform-origin: center;
        transition: transform var(--transition);
    }
    .nav-link:hover,
    .nav-link.active {
        color: var(--primary);
    }
    .nav-link:hover::after,
    .nav-link.active::after {
        transform: scaleX(1);
    }
    .hot-keywords {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 0.8rem;
        color: var(--text-muted);
        white-space: nowrap;
    }
    .hot-keywords a {
        color: var(--text-muted);
    }
    .hot-keywords a:hover {
        color: var(--primary);
    }

    .menu-toggle {
        display: none;
        flex-direction: column;
        justify-content: center;
        gap: 4px;
        width: 36px;
        height: 36px;
        padding: 6px;
        border-radius: 8px;
        background: transparent;
        flex-shrink: 0;
    }
    .menu-toggle span {
        display: block;
        height: 2px;
        border-radius: 2px;
        background: var(--text);
        transition: transform var(--transition), opacity var(--transition);
    }
    .menu-toggle.open span:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }
    .menu-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    .breadcrumb {
        padding: 14px 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
    }
    .breadcrumb .container {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 0.8rem;
        color: var(--text-muted);
        overflow: hidden;
        white-space: nowrap;
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb .current {
        color: var(--text);
    }
    .breadcrumb .truncate {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        max-width: 45%;
    }
    .breadcrumb .sep {
        color: var(--border);
        flex-shrink: 0;
    }

    .article-head {
        padding: 52px 0 28px;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
    }
    .article-head-inner {
        max-width: 760px;
        margin: 0 auto;
        text-align: center;
    }
    .article-cat-tag {
        display: inline-block;
        padding: 4px 16px;
        background: rgba(29, 107, 87, 0.08);
        color: var(--primary);
        font-size: 0.8rem;
        font-weight: 600;
        border-radius: var(--radius-tag);
        margin-bottom: 16px;
        letter-spacing: 0.04em;
    }
    .article-title {
        font-size: 2.25rem;
        font-weight: 700;
        line-height: 1.4;
        letter-spacing: 0.01em;
        color: var(--text);
        word-break: break-word;
        margin-bottom: 18px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        font-size: 0.8rem;
        color: var(--text-muted);
        flex-wrap: wrap;
    }
    .article-meta .dot {
        color: var(--border);
    }

    .article-main {
        padding: 52px 0 64px;
    }
    .article-body-wrap {
        max-width: 760px;
        margin: 0 auto;
    }

    .article-body {
        font-size: 0.95rem;
        line-height: 1.85;
        color: var(--text);
    }
    .article-body h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 2em 0 0.8em;
        padding-bottom: 0.4em;
        border-bottom: 1px solid var(--border);
        line-height: 1.4;
        color: var(--text);
    }
    .article-body h3 {
        font-size: 1.125rem;
        font-weight: 700;
        margin: 1.8em 0 0.6em;
        line-height: 1.5;
        color: var(--text);
    }
    .article-body p {
        margin-bottom: 1.5em;
        text-align: justify;
    }
    .article-body img {
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        margin: 1.5em auto;
    }
    .article-body blockquote {
        border-left: 4px solid var(--primary);
        background: rgba(29, 107, 87, 0.05);
        padding: 16px 24px;
        margin: 1.5em 0;
        border-radius: 0 var(--radius-card) var(--radius-card) 0;
        color: var(--text-muted);
        font-style: normal;
    }
    .article-body blockquote p:last-child {
        margin-bottom: 0;
    }
    .article-body ul,
    .article-body ol {
        margin: 1em 0 1.5em;
        padding-left: 1.4em;
    }
    .article-body li {
        margin-bottom: 0.5em;
        line-height: 1.8;
    }
    .article-body a {
        color: var(--primary);
        text-decoration: underline;
        text-underline-offset: 2px;
    }
    .article-body a:hover {
        color: var(--primary-light);
    }
    .article-body table {
        width: 100%;
        border-collapse: collapse;
        margin: 1.5em 0;
        font-size: 0.85rem;
    }
    .article-body th,
    .article-body td {
        border: 1px solid var(--border);
        padding: 10px 14px;
        text-align: left;
        line-height: 1.6;
    }
    .article-body th {
        background: rgba(29, 107, 87, 0.05);
        font-weight: 600;
        color: var(--primary-dark);
    }
    .article-body hr {
        border: none;
        height: 1px;
        background: var(--border);
        margin: 2em 0;
    }

    .article-empty {
        text-align: center;
        padding: 80px 24px;
        background: var(--surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
    }
    .article-empty .empty-icon {
        width: 72px;
        height: 72px;
        margin: 0 auto 20px;
        border-radius: 50%;
        background: rgba(29, 107, 87, 0.06);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
    }
    .article-empty p {
        font-size: 1rem;
        color: var(--text-muted);
        margin-bottom: 24px;
    }

    .article-share {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-top: 48px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
        flex-wrap: wrap;
    }
    .share-label {
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-right: 4px;
    }
    .share-btn {
        display: inline-flex;
        align-items: center;
        height: 36px;
        padding: 0 18px;
        border-radius: 20px;
        background: var(--surface);
        border: 1px solid var(--border);
        font-size: 0.8rem;
        font-weight: 600;
        color: var(--text);
        transition: all var(--transition);
    }
    .share-btn:hover {
        border-color: var(--primary);
        color: var(--primary);
        box-shadow: 0 2px 8px rgba(29, 107, 87, 0.1);
    }
    .share-tip {
        width: 100%;
        margin-top: 8px;
        font-size: 0.8rem;
        color: var(--primary);
        line-height: 1.5;
    }

    .related-section {
        padding: 64px 0;
        background: var(--bg);
    }
    .section-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 32px;
    }
    .section-head h2 {
        font-size: 1.5rem;
        font-weight: 700;
        position: relative;
        padding-left: 14px;
        line-height: 1.4;
    }
    .section-head h2::before {
        content: '';
        position: absolute;
        left: 0;
        top: 2px;
        bottom: 2px;
        width: 4px;
        border-radius: 4px;
        background: var(--primary);
    }
    .section-more {
        font-size: 0.85rem;
        color: var(--text-muted);
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        overflow: hidden;
        border: 1px solid rgba(230, 225, 215, 0.6);
        transition: transform var(--transition), box-shadow var(--transition);
        display: block;
    }
    .related-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-card-hover);
    }
    .related-card img {
        width: 100%;
        height: 168px;
        object-fit: cover;
    }
    .related-info {
        padding: 20px;
    }
    .related-info h3 {
        font-size: 1rem;
        font-weight: 600;
        margin-bottom: 8px;
        line-height: 1.5;
        color: var(--text);
        transition: color var(--transition);
    }
    .related-card:hover .related-info h3 {
        color: var(--primary);
    }
    .related-info p {
        font-size: 0.85rem;
        color: var(--text-muted);
        line-height: 1.6;
        margin-bottom: 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-tag {
        display: inline-block;
        padding: 3px 12px;
        border-radius: var(--radius-tag);
        background: rgba(29, 107, 87, 0.07);
        color: var(--primary);
        font-size: 0.75rem;
        font-weight: 600;
    }
    .related-card.related-back {
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(29, 107, 87, 0.03);
        border: 1px dashed var(--primary);
        min-height: 260px;
    }
    .related-back-box {
        text-align: center;
        padding: 32px;
    }
    .back-icon {
        display: block;
        font-size: 2.2rem;
        color: var(--primary);
        margin-bottom: 12px;
        font-weight: 300;
    }
    .back-title {
        display: block;
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
    }
    .back-desc {
        display: block;
        font-size: 0.8rem;
        color: var(--text-muted);
        line-height: 1.6;
    }

    .article-cta {
        padding: 64px 0;
        background: var(--primary-dark);
        position: relative;
        overflow: hidden;
    }
    .article-cta::before {
        content: '';
        position: absolute;
        width: 320px;
        height: 320px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.04);
        top: -160px;
        right: -80px;
    }
    .article-cta::after {
        content: '';
        position: absolute;
        width: 200px;
        height: 200px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.03);
        bottom: -100px;
        left: 40px;
    }
    .cta-box {
        max-width: 680px;
        margin: 0 auto;
        text-align: center;
        padding: 24px;
        position: relative;
        z-index: 1;
    }
    .cta-box h2 {
        color: #fff;
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 12px;
        letter-spacing: 0.01em;
    }
    .cta-box p {
        color: rgba(255, 255, 255, 0.7);
        font-size: 0.95rem;
        margin-bottom: 32px;
    }
    .btn-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 52px;
        padding: 0 48px;
        border-radius: 50px;
        background: var(--secondary);
        color: #fff;
        font-size: 1rem;
        font-weight: 600;
        transition: all var(--transition);
        box-shadow: 0 4px 20px rgba(232, 137, 74, 0.25);
    }
    .btn-cta:hover {
        background: var(--secondary-hover);
        transform: scale(1.02);
        box-shadow: 0 8px 28px rgba(232, 137, 74, 0.35);
    }
    .btn-cta:focus-visible {
        outline: 2px solid #fff;
        outline-offset: 3px;
    }

    .site-footer {
        background: var(--primary-dark);
        color: rgba(255, 255, 255, 0.8);
        padding: 64px 0 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 48px;
        padding-bottom: 48px;
    }
    .footer-brand .logo {
        margin-bottom: 16px;
    }
    .footer-brand .logo-text {
        color: #fff;
    }
    .footer-brand .logo-text span {
        color: var(--accent);
    }
    .footer-brand .logo-icon {
        background: rgba(255, 255, 255, 0.12);
        box-shadow: none;
    }
    .footer-brand p {
        font-size: 0.85rem;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.7);
        max-width: 320px;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 0.95rem;
        font-weight: 600;
        margin-bottom: 16px;
        letter-spacing: 0.02em;
    }
    .footer-col a,
    .footer-col p {
        display: block;
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.7);
        line-height: 2.2;
        transition: color var(--transition);
    }
    .footer-col a:hover {
        color: var(--accent);
    }
    .footer-col p i {
        margin-right: 6px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 0;
        text-align: center;
        font-size: 0.8rem;
        color: rgba(255, 255, 255, 0.6);
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, 0.7);
    }
    .footer-bottom a:hover {
        color: var(--accent);
    }

    .hero {
        position: relative;
        overflow: hidden;
        padding: 80px 0;
    }
    .hero-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
        z-index: 0;
    }
    .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(18, 58, 46, 0.92), rgba(29, 107, 87, 0.7));
        z-index: 1;
    }
    .hero-content {
        position: relative;
        z-index: 2;
    }

    @media (max-width: 1024px) {
        .header-search {
            flex: 0 1 240px;
        }
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .related-card.related-back {
            grid-column: span 2;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .article-title {
            font-size: 2rem;
        }
    }

    @media (max-width: 768px) {
        .header-top-inner {
            gap: 12px;
        }
        .header-search {
            display: none;
        }
        .btn-header {
            display: none;
        }
        .menu-toggle {
            display: flex;
        }
        .header-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg);
            z-index: 999;
            height: auto;
            padding: 88px 24px 24px;
            transform: translateX(100%);
            opacity: 0;
            visibility: hidden;
            transition: transform 0.4s ease, opacity 0.3s ease;
            overflow-y: auto;
        }
        .header-nav.open {
            transform: translateX(0);
            opacity: 1;
            visibility: visible;
        }
        .header-nav-inner {
            flex-direction: column;
            align-items: flex-start;
            gap: 0;
            height: auto;
        }
        .nav-link {
            font-size: 1.125rem;
            height: 52px;
            width: 100%;
            border-bottom: 1px solid rgba(230, 225, 215, 0.5);
        }
        .nav-link::after {
            display: none;
        }
        .hot-keywords {
            margin-left: 0;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .article-head {
            padding: 40px 0 20px;
        }
        .article-title {
            font-size: 1.75rem;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .related-card.related-back {
            grid-column: span 1;
        }
        .footer-grid {
            grid-template-columns: 1fr;
        }
        .cta-box h2 {
            font-size: 1.75rem;
        }
    }

    @media (max-width: 480px) {
        .container {
            padding: 0 16px;
        }
        .article-head {
            padding: 32px 0 16px;
        }
        .article-title {
            font-size: 1.5rem;
        }
        .article-meta {
            gap: 8px;
            font-size: 0.75rem;
        }
        .article-main {
            padding: 36px 0 48px;
        }
        .article-body-wrap {
            padding: 0;
        }
        .related-section {
            padding: 48px 0;
        }
        .section-head h2 {
            font-size: 1.25rem;
        }
        .cta-box h2 {
            font-size: 1.5rem;
        }
        .btn-cta {
            width: 100%;
            padding: 0 24px;
        }
        .article-share {
            gap: 8px;
        }
        .share-btn {
            padding: 0 12px;
            font-size: 0.75rem;
        }
        .footer-grid {
            gap: 32px;
        }
    }

/* roulang page: category2 */
:root {
  --primary: #1D6B57;
  --primary-dark: #123A2E;
  --primary-light: #2F8F76;
  --secondary: #E8894A;
  --secondary-hover: #D1723A;
  --accent: #D4A72C;
  --bg: #F5F3EE;
  --surface: #FFFFFF;
  --text: #1E2D28;
  --text-muted: #6A7B74;
  --border: #E6E1D7;
  --shadow-card: 0 2px 12px rgba(18,58,46,0.06);
  --shadow-card-hover: 0 8px 24px rgba(18,58,46,0.12);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 20px;
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-stack); background: var(--bg); color: var(--text); line-height: 1.75; letter-spacing: 0.02em; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; object-fit: cover; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-light); }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .section-tag { display: inline-block; background: rgba(29,107,87,0.08); color: var(--primary); font-size: 0.8rem; font-weight: 600; padding: 6px 18px; border-radius: var(--radius-tag); letter-spacing: 0.04em; margin-bottom: 14px; }
.section-header h2 { font-size: 2.25rem; font-weight: 700; letter-spacing: 0.01em; margin-bottom: 12px; color: var(--text); }
.section-header p { max-width: 680px; margin: 0 auto; color: var(--text-muted); font-size: 0.95rem; }
.section-header .section-tag i { margin-right: 6px; color: var(--accent); }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(245,243,238,0.7); backdrop-filter: blur(8px); transition: background 0.3s ease, box-shadow 0.3s ease; }
.site-header.scrolled { background: var(--bg); box-shadow: 0 1px 0 var(--border); }
.header-top { border-bottom: 1px solid rgba(230,225,215,0.6); }
.header-top-inner { display: flex; align-items: center; height: 56px; gap: 20px; }
.logo { display: inline-flex; align-items: center; gap: 8px; flex-shrink: 0; }
.logo-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1rem; box-shadow: 0 2px 6px rgba(29,107,87,0.2); }
.logo-text { font-weight: 700; font-size: 1.15rem; color: var(--text); letter-spacing: 0.01em; white-space: nowrap; }
.logo-text span { color: var(--primary); }
.header-search { flex: 1; max-width: 420px; margin-left: auto; height: 38px; display: flex; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-btn); overflow: hidden; transition: border-color 0.2s, box-shadow 0.2s; }
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(29,107,87,0.15); }
.header-search input { flex: 1; border: none; outline: none; padding: 0 14px; font-size: 0.85rem; background: transparent; color: var(--text); height: 100%; }
.header-search button { width: 42px; border: none; background: transparent; color: var(--text-muted); font-size: 0.9rem; transition: color 0.2s; }
.header-search button:hover { color: var(--primary); }
.header-cta { margin-left: 0; }
.header-cta.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.25rem; color: var(--text); padding: 6px; }

.header-nav { background: rgba(245,243,238,0.9); border-bottom: 1px solid rgba(230,225,215,0.6); }
.header-nav .container { display: flex; align-items: center; height: 46px; gap: 6px; }
.nav-link { font-size: 0.9rem; font-weight: 500; color: var(--text); padding: 6px 14px; border-radius: 6px; position: relative; white-space: nowrap; }
.nav-link::after { content: ""; position: absolute; bottom: -1px; left: 14px; right: 14px; height: 2px; background: var(--primary); border-radius: 2px; transform: scaleX(0); transform-origin: center; transition: transform 0.25s ease; }
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(0.6); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }
.hot-keywords { display: flex; align-items: center; margin-left: auto; gap: 4px; font-size: 0.75rem; color: var(--text-muted); }
.hot-keywords span { color: var(--text-muted); }
.hot-keywords a { color: var(--text-muted); padding: 3px 8px; border-radius: 20px; border: 1px solid transparent; transition: all 0.2s; white-space: nowrap; }
.hot-keywords a:hover { color: var(--primary); border-color: var(--primary); background: rgba(29,107,87,0.04); }

/* ===== Hero ===== */
.hero { position: relative; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 88px 0 80px; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(18,58,46,0.92) 0%, rgba(29,107,87,0.85) 55%, rgba(18,58,46,0.6) 100%); }
.hero-content { position: relative; z-index: 2; display: flex; align-items: center; gap: 60px; }
.hero-copy { flex: 0 0 55%; }
.hero-copy .hero-cat { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.14); color: #fff; font-size: 0.75rem; font-weight: 600; padding: 6px 16px; border-radius: var(--radius-tag); letter-spacing: 0.03em; margin-bottom: 22px; backdrop-filter: blur(4px); }
.hero-copy .hero-cat i { color: var(--accent); }
.hero-copy h1 { font-size: 2.75rem; font-weight: 700; color: #fff; line-height: 1.2; letter-spacing: 0.01em; margin-bottom: 18px; }
.hero-copy h1 .highlight { color: var(--accent); }
.hero-copy .hero-desc { font-size: 1.05rem; color: rgba(255,255,255,0.9); max-width: 540px; line-height: 1.8; margin-bottom: 32px; }
.hero-btns { display: flex; align-items: center; gap: 16px; margin-bottom: 42px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; border-radius: var(--radius-btn); transition: all 0.25s ease; border: 2px solid transparent; text-decoration: none; }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(29,107,87,0.35); }
.btn-primary { background: var(--primary); color: #fff; padding: 12px 28px; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-light); border-color: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(29,107,87,0.25); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline-light { background: transparent; color: #fff; padding: 10px 26px; border: 2px solid rgba(255,255,255,0.7); }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stat .num { font-size: 1.8rem; font-weight: 700; color: var(--accent); line-height: 1.2; letter-spacing: 0.01em; }
.hero-stat .label { font-size: 0.8rem; color: rgba(255,255,255,0.75); margin-top: 4px; }
.hero-visual { flex: 0 0 45%; display: flex; justify-content: center; position: relative; }
.hero-phone { width: 260px; height: 470px; border-radius: 24px; border: 4px solid #fff; background: var(--primary-dark); box-shadow: 0 18px 50px rgba(18,58,46,0.4); overflow: hidden; position: relative; }
.hero-phone img { width: 100%; height: 100%; object-fit: cover; }
.hero-phone-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 26px 16px 14px; background: linear-gradient(to top, rgba(18,58,46,0.9), transparent); }
.hero-phone-overlay .p-title { color: #fff; font-weight: 600; font-size: 0.85rem; margin-bottom: 2px; }
.hero-phone-overlay .p-sub { color: rgba(255,255,255,0.75); font-size: 0.75rem; }
.hero-badge { position: absolute; top: -12px; right: 12px; background: var(--accent); color: #1E2D28; font-size: 0.7rem; font-weight: 600; padding: 5px 14px; border-radius: 20px; box-shadow: 0 4px 10px rgba(212,167,44,0.35); z-index: 3; }
.hero-float-card { position: absolute; bottom: -18px; left: -20px; background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card-hover); padding: 14px 20px; display: flex; align-items: center; gap: 12px; z-index: 3; min-width: 180px; }
.hero-float-card .fc-icon { width: 34px; height: 34px; border-radius: 50%; background: rgba(29,107,87,0.1); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; }
.hero-float-card .fc-text { font-size: 0.8rem; color: var(--text); line-height: 1.4; }
.hero-float-card .fc-text b { color: var(--primary); font-weight: 700; }

/* ===== Stats bar ===== */
.stats-bar { background: var(--primary-dark); padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; padding: 8px 12px; }
.stat-item .num { font-size: 2rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.stat-item .label { font-size: 0.85rem; color: rgba(255,255,255,0.8); margin-top: 6px; }

/* ===== Card Commons ===== */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); box-shadow: var(--shadow-card); transition: transform 0.25s ease, box-shadow 0.25s ease; overflow: hidden; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.card-img { position: relative; overflow: hidden; aspect-ratio: 16 / 10; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card:hover .card-img img { transform: scale(1.04); }
.card-img .tag { position: absolute; top: 12px; left: 12px; background: rgba(18,58,46,0.8); color: #fff; font-size: 0.7rem; font-weight: 500; padding: 4px 12px; border-radius: 20px; backdrop-filter: blur(3px); }
.card-body { padding: 20px 22px; }
.card-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; line-height: 1.5; }
.card-body h3 a { color: var(--text); }
.card-body h3 a:hover { color: var(--primary); }
.card-body p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.card-meta { display: flex; align-items: center; gap: 10px; font-size: 0.75rem; color: var(--text-muted); }
.card-meta .sep { width: 3px; height: 3px; border-radius: 50%; background: var(--border); }

/* ===== Resource Categories ===== */
.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 32px 28px; text-align: center; box-shadow: var(--shadow-card); transition: transform 0.25s, box-shadow 0.25s; position: relative; overflow: hidden; }
.cat-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--primary); transform: scaleX(0); transform-origin: center; transition: transform 0.3s ease; }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.cat-card:hover::before { transform: scaleX(1); }
.cat-card .icon { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 18px; background: rgba(29,107,87,0.08); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; transition: background 0.25s, color 0.25s; }
.cat-card:hover .icon { background: var(--primary); color: #fff; }
.cat-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 10px; }
.cat-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 0; }
.cat-card .more { display: inline-flex; align-items: center; gap: 4px; color: var(--primary); font-size: 0.8rem; font-weight: 500; margin-top: 14px; transition: gap 0.2s; }
.cat-card .more i { font-size: 0.7rem; }
.cat-card .more:hover { gap: 8px; }

/* ===== Featured Resources ===== */
.featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.resource-card { display: flex; flex-direction: row; align-items: stretch; }
.resource-card .card-img { flex: 0 0 38%; aspect-ratio: auto; min-height: 180px; }
.resource-card .card-body { flex: 1; padding: 22px; display: flex; flex-direction: column; justify-content: center; }
.resource-card .card-body h3 { font-size: 1rem; }
.resource-card .card-body .card-tag { display: inline-block; background: rgba(29,107,87,0.08); color: var(--primary); font-size: 0.7rem; padding: 3px 12px; border-radius: 20px; margin-bottom: 8px; font-weight: 500; }
.resource-card .card-body p { font-size: 0.82rem; margin-bottom: 12px; }
.resource-card .go-link { font-size: 0.82rem; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 4px; transition: gap 0.2s; }
.resource-card .go-link i { font-size: 0.7rem; }
.resource-card .go-link:hover { gap: 8px; }

/* ===== Scenarios ===== */
.scenarios { background: var(--primary-dark); position: relative; overflow: hidden; }
.scenarios::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat; opacity: 0.12; }
.scenarios .section-header h2 { color: #fff; }
.scenarios .section-header p { color: rgba(255,255,255,0.75); }
.scenarios .section-header .section-tag { background: rgba(255,255,255,0.12); color: #fff; }
.scenarios-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-card); padding: 32px 28px; backdrop-filter: blur(4px); transition: background 0.25s, border-color 0.25s; }
.scenario-card:hover { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.25); }
.scenario-card .icon { width: 46px; height: 46px; border-radius: 12px; background: var(--accent); color: #1E2D28; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; margin-bottom: 20px; }
.scenario-card h3 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 10px; }
.scenario-card p { color: rgba(255,255,255,0.7); font-size: 0.85rem; line-height: 1.7; }

/* ===== Process ===== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.process-step { text-align: center; padding: 36px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); position: relative; box-shadow: var(--shadow-card); transition: transform 0.25s, box-shadow 0.25s; }
.process-step:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.process-step .step-num { width: 44px; height: 44px; margin: 0 auto 18px; background: var(--primary); color: #fff; font-weight: 700; font-size: 1.05rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(29,107,87,0.28); }
.process-step h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 8px; }
.process-step p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; }

/* ===== Reviews ===== */
.reviews-track { display: flex; gap: 16px; overflow-x: auto; padding: 8px 2px 16px; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
.reviews-track::-webkit-scrollbar { height: 5px; }
.reviews-track::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.review-card { flex: 0 0 320px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 24px; box-shadow: var(--shadow-card); scroll-snap-align: start; transition: box-shadow 0.25s; }
.review-card:hover { box-shadow: var(--shadow-card-hover); }
.review-card .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--primary-light); color: #fff; font-size: 0.9rem; display: flex; align-items: center; justify-content: center; font-weight: 600; }
.review-user { font-size: 0.88rem; font-weight: 600; color: var(--text); }
.review-date { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.review-stars { color: var(--accent); font-size: 0.8rem; letter-spacing: 2px; margin-bottom: 10px; }
.review-text { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }
.review-tag { display: inline-block; margin-top: 12px; font-size: 0.7rem; color: var(--primary); background: rgba(29,107,87,0.08); padding: 3px 12px; border-radius: 20px; }

/* ===== FAQ ===== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: box-shadow 0.2s; }
.faq-item.open { box-shadow: var(--shadow-card); }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; font-weight: 600; font-size: 0.92rem; color: var(--text); cursor: pointer; outline: none; width: 100%; background: none; border: none; text-align: left; transition: color 0.2s; }
.faq-question:hover { color: var(--primary); }
.faq-question .faq-icon { width: 22px; height: 22px; border-radius: 50%; background: rgba(29,107,87,0.08); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; transition: transform 0.3s ease, background 0.2s; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer-inner { padding: 0 24px 18px; font-size: 0.85rem; color: var(--text-muted); line-height: 1.8; }

/* ===== CTA ===== */
.cta-section { background: var(--primary-dark); padding: 90px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; width: 340px; height: 340px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.08); top: -120px; right: -80px; }
.cta-section::after { content: ""; position: absolute; width: 200px; height: 200px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.06); bottom: -60px; left: 40px; }
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-inner h2 { font-size: 2rem; color: #fff; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.01em; }
.cta-inner .cta-sub { font-size: 0.95rem; color: rgba(255,255,255,0.7); margin-bottom: 36px; line-height: 1.8; }
.btn-convert { background: var(--secondary); color: #fff; padding: 16px 48px; border-radius: 50px; font-weight: 600; font-size: 1rem; border: none; transition: all 0.3s ease; display: inline-flex; align-items: center; gap: 8px; }
.btn-convert:hover { background: var(--secondary-hover); color: #fff; transform: scale(1.02); box-shadow: 0 8px 24px rgba(232,137,74,0.3); }
.btn-convert:active { transform: scale(0.98); }

/* ===== Footer ===== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.75); padding: 72px 0 28px; margin-top: 0; }
.site-footer .logo-text { color: #fff; }
.site-footer .logo-text span { color: var(--accent); }
.site-footer p { font-size: 0.85rem; line-height: 1.8; color: rgba(255,255,255,0.65); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 52px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand .logo-icon { background: rgba(255,255,255,0.12); color: var(--accent); }
.footer-col h4 { color: #fff; font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; bottom: 0; left: 0; width: 24px; height: 2px; background: var(--accent); border-radius: 2px; }
.footer-col a { display: block; font-size: 0.84rem; color: rgba(255,255,255,0.65); padding: 5px 0; transition: color 0.2s, padding-left 0.2s; }
.footer-col a:hover { color: var(--accent); padding-left: 6px; }
.footer-col p { font-size: 0.82rem; margin-bottom: 6px; }
.footer-col p i { color: var(--accent); margin-right: 8px; width: 14px; text-align: center; }
.footer-bottom { padding-top: 28px; text-align: center; font-size: 0.78rem; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Back to top ===== */
.back-top { position: fixed; bottom: 28px; right: 28px; width: 42px; height: 42px; border-radius: 50%; background: var(--primary); color: #fff; border: none; box-shadow: 0 4px 12px rgba(18,58,46,0.3); display: flex; align-items: center; justify-content: center; font-size: 0.9rem; z-index: 99; transition: all 0.3s ease; opacity: 0; visibility: hidden; pointer-events: none; }
.back-top.show { opacity: 1; visibility: visible; pointer-events: auto; }
.back-top:hover { background: var(--primary-light); transform: translateY(-3px); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-grid { grid-template-columns: 1fr; }
  .hero-content { gap: 40px; }
  .hero-visual { flex: 0 0 40%; }
  .hero-phone { width: 220px; height: 400px; }
  .hot-keywords { display: none; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero { padding: 60px 0; }
  .hero-content { flex-direction: column; }
  .hero-copy { flex: 0 0 100%; text-align: center; }
  .hero-copy .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-btns { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { margin-top: 40px; }
  .hero-phone { width: 200px; height: 360px; }
  .hero-float-card { left: 50%; transform: translateX(-50%); bottom: -20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .scenarios-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .header-top-inner { height: 56px; }
  .header-search { max-width: 180px; }
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .header-nav { display: none; border-top: 1px solid var(--border); background: var(--bg); }
  .header-nav.open { display: block; }
  .header-nav .container { flex-direction: column; align-items: flex-start; height: auto; padding: 12px 16px 20px; gap: 4px; }
  .header-nav .nav-link { font-size: 1.05rem; padding: 10px 0; width: 100%; }
  .header-nav .nav-link::after { display: none; }
  .header-nav .nav-link.active { color: var(--primary); font-weight: 700; }
  .header-nav .hot-keywords { display: flex; margin-left: 0; gap: 6px; padding-top: 12px; flex-wrap: wrap; border-top: 1px solid var(--border); margin-top: 8px; }
  .hot-keywords span { width: 100%; margin-bottom: 4px; }
  .resource-card { flex-direction: column; }
  .resource-card .card-img { flex: 0 0 auto; aspect-ratio: 16 / 9; min-height: auto; }
  .cta-section { padding: 64px 0; }
  .cta-inner h2 { font-size: 1.6rem; }
  .btn-convert { padding: 14px 36px; font-size: 0.95rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .hero-copy h1 { font-size: 2rem; }
  .hero-copy .hero-desc { font-size: 0.9rem; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.4rem; }
  .hero-phone { width: 170px; height: 300px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-item .num { font-size: 1.5rem; }
  .categories-grid { grid-template-columns: 1fr; gap: 16px; }
  .process-grid { grid-template-columns: 1fr; gap: 16px; }
  .section-header h2 { font-size: 1.6rem; }
  .section-header p { font-size: 0.85rem; }
  .header-search { display: none; }
  .header-top-inner { justify-content: space-between; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .back-top { bottom: 18px; right: 18px; width: 36px; height: 36px; font-size: 0.8rem; }
  .review-card { flex: 0 0 280px; }
}