/* roulang page: index */
:root{
  --brand-700:#0B5A4B;
  --brand-600:#0E6E5C;
  --brand-500:#2FA88E;
  --brand-100:#DCEFE9;
  --accent:#E39A1F;
  --accent-soft:#FDF3E0;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --line:#DEE6E2;
  --dark:#0E1F1B;
  --ink:#12211D;
  --ink-2:#3A4B46;
  --muted:#6B7C77;
  --danger:#C4453B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(14,31,27,.05), 0 10px 24px -16px rgba(14,31,27,.18);
  --shadow-2:0 16px 32px -18px rgba(11,90,75,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;
  color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease,background-color .16s ease,border-color .16s ease}
a:hover{color:var(--brand-600)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.3}
h1{font-size:44px;line-height:1.22}
h2{font-size:32px}
h3{font-size:22px;line-height:1.4;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(47,168,142,.35);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--dark);color:#C6DCD5;font-size:13px;line-height:1.6}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:36px}
.topbar-item{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.topbar-item svg{width:14px;height:14px;color:var(--brand-500)}
.topbar-item strong{color:#fff;font-weight:600}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-main{display:flex;align-items:center;gap:24px;padding:14px 32px;max-width:var(--container);margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{flex-shrink:0;filter:drop-shadow(0 6px 12px rgba(11,90,75,.22))}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:-.02em;color:var(--brand-700)}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.02em}
.nav-search{flex:1;display:flex;justify-content:center}
.search-box{
  display:flex;align-items:center;
  width:100%;max-width:560px;height:48px;
  background:var(--bg);border:1px solid var(--line);
  border-radius:999px;padding-left:18px;
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.search-box:focus-within{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(47,168,142,.12)}
.search-icon{width:18px;height:18px;color:var(--muted);flex-shrink:0}
.search-box input{flex:1;min-width:0;height:100%;border:0;background:transparent;padding:0 12px;font-size:15px;outline:none}
.search-box input::placeholder{color:#93A29D}
.search-box button{
  flex-shrink:0;height:38px;min-width:68px;margin-right:5px;padding:0 16px;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;
  border-radius:var(--radius-btn);transition:background-color .16s ease;
}
.search-box button:hover{background:var(--brand-700)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn,.nav-toggle,.search-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;color:var(--ink-2);
}
.icon-btn svg,.nav-toggle svg,.search-toggle svg{width:20px;height:20px}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;
  background:var(--brand-600);color:#fff;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
}
.nav-cta:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.nav-links{border-top:1px solid var(--line);background:#fff}
.nav-links-inner{display:flex;align-items:center;gap:6px;height:54px}
.nav-links a{
  padding:8px 18px;border-radius:999px;font-size:15px;font-weight:500;
  color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-links a.active{background:var(--brand-700);color:#fff;font-weight:600}
.mobile-search{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-search .container{padding:14px 16px 18px}
.mobile-search .search-box{border-radius:12px}
.hot-words{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--muted)}
.hot-words a{padding:4px 12px;background:var(--bg);border-radius:999px;color:var(--ink-2)}
.hot-words a:hover{background:var(--brand-100);color:var(--brand-700)}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;color:var(--brand-700);border-color:var(--brand-100)}
.btn-secondary:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:#fff;color:var(--brand-700);border-color:#fff}
.btn-block{width:100%}
.btn-lg{height:48px;padding:0 28px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700)}
.link-arrow span{color:var(--accent);transition:transform .16s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:var(--accent-soft);color:#9A6608}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-light{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-dark{background:var(--dark);color:#CFE3DC}
.section-dark h2,.section-dark h3{color:#fff}
.section-alt{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
  font-size:13px;font-weight:600;color:var(--brand-600);letter-spacing:.06em;
}
.section-head .eyebrow::before{content:"";width:20px;height:2px;background:var(--accent);border-radius:2px}
.section-head p{margin-top:12px;max-width:640px;color:var(--muted);font-size:15px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:100px 0 92px;
  color:#fff;
  background-image:
    linear-gradient(102deg,rgba(14,31,27,.94) 0%,rgba(11,90,75,.84) 52%,rgba(14,31,27,.66) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;
  background:
    radial-gradient(circle at 30% 30%,rgba(47,168,142,.28) 0,rgba(47,168,142,0) 62%),
    radial-gradient(circle at 70% 70%,rgba(227,154,31,.18) 0,rgba(227,154,31,0) 60%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero h1{color:#fff;font-size:44px;line-height:1.22;margin-bottom:20px}
.hero-sub{font-size:18px;color:#D6E8E2;margin-bottom:32px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-points{display:flex;flex-wrap:wrap;gap:14px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);
  font-size:13px;color:#E4F2EE;
}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- 分类快捷入口 ---------- */
.quick-strip{background:var(--surface);border-bottom:1px solid var(--line);padding:22px 0}
.quick-list{display:flex;gap:12px;overflow-x:auto;scrollbar-width:thin}
.quick-item{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  padding:12px 20px;border:1px solid var(--line);border-radius:999px;
  background:#fff;font-size:15px;font-weight:600;color:var(--ink-2);
  transition:all .16s ease;
}
.quick-item svg{width:18px;height:18px;color:var(--brand-500)}
.quick-item:hover{border-color:var(--brand-100);background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);box-shadow:var(--shadow-1)}

/* ---------- 业务板块 ---------- */
.biz-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:stretch}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.card-body{padding:24px}
.card-body h3{margin-bottom:10px}
.card-body p{color:var(--muted);font-size:15px}
.card-lede{position:relative}
.card-lede img{width:100%;height:300px;object-fit:cover;border-radius:0}
.card-lede .card-body{padding:28px}
.card-lede h3{font-size:24px}
.card-lede p{margin-bottom:16px}
.card-side{display:flex;flex-direction:column;gap:24px}
.card-side .card{flex:1;display:flex;flex-direction:column}
.card-side img{width:100%;height:160px;object-fit:cover;border-radius:0}
.card-side .card-body{flex:1}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.check-list li{position:relative;padding-left:24px;font-size:15px;color:var(--ink-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(-45deg);
}

/* ---------- 数据区 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.stat{padding:28px 24px;border-radius:var(--radius-card);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10)}
.stat-value{font-size:48px;font-weight:700;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums}
.stat-value small{font-size:18px;font-weight:600;color:var(--brand-500);margin-left:4px}
.stat-label{margin-top:10px;font-size:14px;color:#A9C4BC}
.stats-note{margin-top:28px;font-size:14px;color:#8FAFA6}

/* ---------- 场景 mosaic ---------- */
.mosaic{display:grid;grid-template-columns:1.5fr 1fr 1fr;grid-auto-rows:1fr;gap:20px}
.mosaic-item{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);min-height:200px;
}
.mosaic-item img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.mosaic-item:hover img{transform:scale(1.04)}
.mosaic-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:20px;
  background:linear-gradient(to top,rgba(14,31,27,.88),rgba(14,31,27,0));
  color:#fff;
}
.mosaic-item figcaption strong{display:block;font-size:17px;font-weight:600}
.mosaic-item figcaption span{font-size:13px;color:#C6DCD5}
.mosaic-item.big{grid-row:span 2}
.mosaic-item.big figcaption strong{font-size:21px}
.mosaic-cta{
  display:flex;flex-direction:column;justify-content:center;gap:14px;
  padding:24px;background:var(--brand-700);color:#fff;
}
.mosaic-cta h3{color:#fff;font-size:19px}
.mosaic-cta p{font-size:14px;color:#D6E8E2}

/* ---------- 解决方案 Tab ---------- */
.solution{display:grid;grid-template-columns:288px 1fr;gap:36px;align-items:start}
.sol-nav{display:flex;flex-direction:column;gap:10px}
.sol-tab{
  text-align:left;padding:16px 20px;border:1px solid var(--line);background:#fff;
  border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-2);
  transition:all .16s ease;
}
.sol-tab:hover{border-color:var(--brand-100);background:var(--brand-100);color:var(--brand-700)}
.sol-tab.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;box-shadow:var(--shadow-2)}
.sol-panels{position:relative}
.sol-panel{display:none}
.sol-panel.active{display:block;animation:fadeUp .28s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.sol-card{
  display:grid;grid-template-columns:1.1fr 1fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.sol-card img{width:100%;height:100%;min-height:300px;object-fit:cover;border-radius:0}
.sol-content{padding:32px}
.sol-content h3{margin-bottom:12px}
.sol-content p{color:var(--muted);font-size:15px;margin-bottom:16px}
.spec-list{display:flex;flex-wrap:wrap;gap:10px}
.spec-list li{padding:6px 14px;border-radius:999px;background:var(--bg);border:1px solid var(--line);font-size:13px;color:var(--ink-2)}

/* ---------- 最新信息 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column}
.post-cover{position:relative;overflow:hidden}
.post-cover img{width:100%;height:180px;object-fit:cover;border-radius:0}
.post-card .badge{position:absolute;left:14px;top:14px}
.post-body{padding:22px;display:flex;flex-direction:column;flex:1}
.post-body h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  color:var(--muted);font-size:14px;margin-bottom:18px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.post-card:hover h3{color:var(--brand-700)}
.post-card .go{color:var(--accent);font-weight:600}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;text-align:center;
  border:1px dashed var(--brand-100);border-radius:var(--radius-card);background:#fff;
}
.empty-state svg{width:40px;height:40px;color:var(--brand-500)}
.empty-state p{color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:48px;align-items:start}
.faq-intro p{color:var(--muted);font-size:15px;margin-top:14px}
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .16s ease,box-shadow .16s ease;
}
.acc-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.acc-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.acc-icon{
  flex-shrink:0;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--brand-100);color:var(--brand-700);font-size:16px;line-height:1;
  transition:transform .2s ease,background-color .16s ease,color .16s ease;
}
.acc-item.open .acc-icon{background:var(--brand-700);color:#fff;transform:rotate(45deg)}
.acc-a{max-height:0;overflow:hidden;padding:0 24px;transition:max-height .28s ease,padding .28s ease}
.acc-item.open .acc-a{max-height:320px;padding-bottom:22px}
.acc-a p{color:var(--muted);font-size:15px}

/* ---------- 联系区 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:18px}
.info-item{
  display:flex;gap:14px;padding:20px;border:1px solid var(--line);
  border-radius:var(--radius-card);background:#fff;
}
.info-item .ico{
  flex-shrink:0;width:42px;height:42px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
}
.info-item .ico svg{width:20px;height:20px}
.info-item strong{display:block;font-size:15px;margin-bottom:2px}
.info-item span{font-size:14px;color:var(--muted)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.form-field label .req{color:var(--accent);margin-left:2px}
.form-field input,.form-field select,.form-field textarea{
  width:100%;padding:12px 14px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:15px;outline:none;
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.form-field textarea{resize:vertical;min-height:110px}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(47,168,142,.12);
}
.form-hint{font-size:13px;color:var(--muted);margin-top:12px}
.form-success{
  display:none;align-items:flex-start;gap:12px;padding:20px;margin-top:4px;
  background:var(--brand-100);border:1px solid var(--brand-500);border-radius:var(--radius-card);
  color:var(--brand-700);font-size:15px;
}
.form-success svg{width:22px;height:22px;flex-shrink:0;margin-top:2px}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--dark);color:#fff;padding:56px 0}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:#A9C4BC;font-size:15px}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#9FBAB3;font-size:14px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{font-size:18px;color:#fff;font-weight:700}
.footer-brand small{display:block;font-size:12px;color:#7E9C94}
.site-footer p{line-height:1.9}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{color:#9FBAB3}
.footer-list a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7}
.footer-contact svg{width:16px;height:16px;flex-shrink:0;margin-top:5px;color:var(--brand-500)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#7E9C94;flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  h1{font-size:38px}
  .hero h1{font-size:38px}
  .nav-main{gap:16px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .nav-main{padding:12px 24px}
  .search-toggle,.nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .nav-cta{display:none}
  .mobile-search.open{display:block}
  .nav-links{display:none}
  .site-header.open .nav-links{display:block;background:#fff}
  .site-header.open .nav-links-inner{
    flex-direction:column;align-items:stretch;height:auto;gap:4px;padding:12px 24px 20px;
  }
  .site-header.open .nav-links a{padding:12px 16px;border-radius:var(--radius-btn)}
  .section{padding:72px 0}
  .biz-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .mosaic{grid-template-columns:1fr 1fr}
  .mosaic-item.big{grid-row:span 1;grid-column:span 2}
  .solution{grid-template-columns:1fr}
  .sol-nav{flex-direction:row;overflow-x:auto;padding-bottom:6px}
  .sol-tab{white-space:nowrap}
  .sol-card{grid-template-columns:1fr}
  .sol-card img{min-height:220px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .cta-band .container{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  h1{font-size:28px}
  h2{font-size:24px}
  h3{font-size:19px}
  body{font-size:15px}
  .hero{padding:64px 0 56px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .topbar-item.hide-sm{display:none}
  .card-lede img{height:220px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-value{font-size:36px}
  .mosaic{grid-template-columns:1fr}
  .mosaic-item.big{grid-column:span 1}
  .card-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:44px 0}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .nav-main{padding:10px 16px}
  .brand-text strong{font-size:17px}
  .brand-text small{display:none}
  .stat{padding:20px 16px}
  .sol-content,.card-body{padding:20px}
  .form-card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand-700:#0B5A4B;
  --brand-600:#0E6E5C;
  --brand-500:#2FA88E;
  --brand-100:#DCEFE9;
  --accent:#E39A1F;
  --accent-soft:#FDF3E0;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --line:#DEE6E2;
  --dark:#0E1F1B;
  --ink:#12211D;
  --ink-2:#3A4B46;
  --muted:#6B7C77;
  --danger:#C4453B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,31,27,.05), 0 10px 24px -16px rgba(14,31,27,.18);
  --shadow-2:0 16px 32px -18px rgba(11,90,75,.28);
  --space-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-700);text-decoration:none}
a:hover{color:var(--brand-600)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{padding-left:1.35em}
h1,h2,h3,h4{letter-spacing:-.01em;color:var(--ink);margin:0}
:focus-visible{outline:3px solid rgba(47,168,142,.35);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1280px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--dark);color:#C6D8D2;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:36px;overflow:hidden}
.topbar-item{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.topbar-item svg{width:14px;height:14px;color:var(--brand-500)}
@media (max-width:767px){.topbar-item.hide-sm{display:none}}

/* ---------- 主导航 ---------- */
.masthead{background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:30}
.masthead-inner{display:flex;align-items:center;gap:24px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{flex:0 0 auto}
.brand-text strong{display:block;font-size:19px;font-weight:700;line-height:1.3;color:var(--ink)}
.brand-text small{display:block;font-size:12px;color:var(--muted);letter-spacing:.02em;line-height:1.5}
.search-box{
  flex:1 1 auto;max-width:560px;margin:0 auto;display:flex;align-items:center;gap:8px;
  min-height:48px;padding:5px 5px 5px 16px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color .16s ease, box-shadow .16s ease;
}
.search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(47,168,142,.12)}
.search-icon{width:18px;height:18px;color:var(--muted);flex:0 0 auto}
.search-input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px;line-height:1.5;padding:6px 0}
.search-input::placeholder{color:#93A49F}
.search-btn{
  flex:0 0 auto;height:38px;padding:0 20px;border:0;border-radius:var(--radius-btn);
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;
  transition:background .16s ease, transform .16s ease;
}
.search-btn:hover{background:var(--brand-700)}
.search-btn:active{transform:translateY(1px)}
.masthead-cta{flex:0 0 auto}
.menu-toggle{
  display:none;width:44px;height:44px;flex:0 0 auto;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);color:var(--ink-2);
}
.menu-toggle:hover{background:var(--brand-100);color:var(--brand-700)}
.menu-toggle svg{width:20px;height:20px}

.nav-links{background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(14,31,27,.04);position:sticky;top:0;z-index:20}
.nav-links-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.nav-links-inner::-webkit-scrollbar{display:none}
.nav-links a{
  position:relative;display:inline-block;padding:15px 14px;font-size:15px;color:var(--ink-2);
  white-space:nowrap;border-radius:8px;transition:color .16s ease, background .16s ease;
}
.nav-links a:hover{color:var(--brand-700);background:var(--brand-100)}
.nav-links a.active{color:var(--brand-700);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--accent);border-radius:2px;
}

.mobile-panel{
  display:none;position:absolute;left:0;right:0;top:100%;z-index:40;
  background:var(--surface);border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);padding:18px 0;
}
.mobile-panel.open{display:block}
.mobile-panel .search-box{max-width:100%;margin:0 0 16px}
.mobile-links{display:grid;gap:6px}
.mobile-links a{
  display:block;padding:11px 14px;border-radius:10px;background:var(--bg);
  color:var(--ink-2);font-size:15px;border:1px solid var(--line);
}
.mobile-links a:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100)}
.mobile-panel .hot-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.mobile-panel .hot-words span{font-size:13px;color:var(--muted);align-self:center}
.mobile-panel .hot-words a{
  font-size:13px;padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--brand-100);color:var(--brand-700);
}

@media (max-width:991px){
  .search-box{display:none}
  .masthead-cta{display:none}
  .menu-toggle{display:flex}
  .masthead-inner{gap:16px}
}
@media (max-width:575px){
  .brand-text small{display:none}
  .brand-text strong{font-size:17px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .16s ease, color .16s ease, transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:var(--surface);color:var(--brand-700);border-color:var(--brand-100)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--dark);border-color:#fff}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn-arrow{
  display:inline-flex;align-items:center;gap:6px;height:auto;padding:0;border:0;background:none;
  color:var(--brand-700);font-weight:600;font-size:14px;
}
.btn-arrow svg{width:16px;height:16px;transition:transform .16s ease;color:var(--accent)}
.btn-arrow:hover svg{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:var(--accent-soft);color:#9A6A0C}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);padding:22px 0 0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:#B8C6C1}
.breadcrumb .current{color:var(--brand-700);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:16px 0 var(--space-section)}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:start}
@media (min-width:1200px){
  .article-grid{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px}
}
.article-head{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:32px 32px 26px}
@media (max-width:767px){.article-head{padding:22px 18px 20px}}
.article-title{font-size:34px;line-height:1.3;font-weight:700;margin:16px 0 0}
@media (min-width:992px){.article-title{font-size:40px;line-height:1.25}}
@media (max-width:575px){.article-title{font-size:26px;line-height:1.35}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D1CC}
.article-meta strong{color:var(--ink-2);font-weight:600}
.article-lead{
  margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}

.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:36px 32px;margin-top:24px;max-width:800px;
}
@media (max-width:767px){.article-body{padding:22px 18px}}
.article-body h2{font-size:25px;line-height:1.4;font-weight:700;margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand-600)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body li{margin:.4em 0}
.article-body strong{color:var(--ink)}
.article-body a{border-bottom:1px dotted var(--brand-600)}
.article-body a:hover{border-bottom-color:var(--brand-700);color:var(--brand-700)}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-100);
  border-left:4px solid var(--brand-600);border-radius:0 var(--radius-img) var(--radius-img) 0;color:var(--ink-2);
}
.article-body img{border-radius:var(--radius-img);margin:22px 0}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;
  display:block;overflow-x:auto;font-variant-numeric:tabular-nums;
}
.article-body th{background:var(--brand-100);color:var(--brand-700);text-align:left;padding:12px 14px;border:1px solid var(--line);white-space:nowrap}
.article-body td{padding:12px 14px;border:1px solid var(--line);background:var(--surface)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 骨架 / 空态 ---------- */
.skeleton-line{
  display:block;height:16px;border-radius:8px;margin:10px 0;
  background:linear-gradient(90deg,#EEF3F1 25%,#E2EBE7 37%,#EEF3F1 63%);
  background-size:400% 100%;animation:shimmer 1.4s infinite linear;
}
.skeleton-line.w-70{width:70%}
.skeleton-line.w-45{width:45%}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}

.empty-state{
  border:1px dashed rgba(47,168,142,.45);border-radius:var(--radius-card);
  background:var(--bg);padding:46px 22px;text-align:center;
}
.empty-state svg{width:38px;height:38px;color:var(--brand-500);margin:0 auto 14px}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:14px;margin:0 0 20px}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--muted);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--bg);border:1px solid var(--line);color:var(--ink-2);font-size:13px;
  transition:background .16s ease, color .16s ease, border-color .16s ease;
}
.tag:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}

/* ---------- 上一篇 / 下一篇 ---------- */
.adjacent{display:grid;grid-template-columns:1fr;gap:16px;margin-top:26px}
@media (min-width:768px){.adjacent{grid-template-columns:1fr 1fr}}
.adjacent a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);transition:transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.adjacent a:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.adjacent span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.adjacent strong{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.6}
.adjacent a:hover strong{color:var(--brand-700)}
.adjacent .next{text-align:right}

/* ---------- 侧栏 ---------- */
.article-side{display:none}
@media (min-width:1200px){
  .article-side{display:block;position:sticky;top:88px}
}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;margin-bottom:20px;
}
.side-card h2{font-size:16px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.side-card h2::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand-600)}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.toc-list a{display:block;font-size:14px;color:var(--ink-2);padding:7px 10px;border-radius:8px;border:0;line-height:1.6}
.toc-list a:hover{background:var(--brand-100);color:var(--brand-700)}
.side-note{font-size:13px;color:var(--muted);margin:0 0 16px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.side-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.side-list svg{width:16px;height:16px;color:var(--brand-500);flex:0 0 auto;margin-top:5px}
.side-cta{
  background:linear-gradient(160deg,var(--brand-700),#093F35);color:#DCEDE7;
  border:0;border-radius:var(--radius-card);padding:26px 24px;
}
.side-cta h2{color:#fff}
.side-cta h2::before{background:var(--accent)}
.side-cta p{font-size:14px;color:#B6D2C9;margin:0 0 16px;line-height:1.8}
.side-cta .phone{display:block;font-size:20px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;margin-bottom:16px}

/* ---------- 相关推荐 / 卡片 ---------- */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:0 0 24px;flex-wrap:wrap}
.block-head h2{font-size:26px;font-weight:700;line-height:1.35}
.block-head p{margin:8px 0 0;font-size:14px;color:var(--muted)}
@media (max-width:575px){.block-head h2{font-size:21px}}
.related{margin-top:56px}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .16s ease, box-shadow .16s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card-cover{position:relative;background:var(--brand-100)}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-cover .badge{position:absolute;left:12px;top:12px}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.card-body h3{font-size:17px;font-weight:600;line-height:1.55;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-body h3{color:var(--brand-700)}
.card-body p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.card-foot svg{width:16px;height:16px;color:var(--accent);transition:transform .16s ease}
.card:hover .card-foot svg{transform:translateX(4px)}

/* ---------- CTA 条 ---------- */
.cta-bar{
  position:relative;overflow:hidden;background:var(--dark);border-radius:18px;
  padding:44px 40px;margin-top:64px;color:#E6F1ED;
  background-image:radial-gradient(circle at 88% 18%,rgba(47,168,142,.28),transparent 46%),
                   radial-gradient(circle at 6% 90%,rgba(227,154,31,.16),transparent 42%);
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr);gap:26px;align-items:center}
@media (min-width:992px){.cta-inner{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px}}
.cta-bar h2{font-size:28px;color:#fff;line-height:1.35}
@media (max-width:575px){.cta-bar h2{font-size:22px}}
.cta-bar p{margin:12px 0 0;font-size:15px;color:#B6D2C9;line-height:1.9;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:767px){.cta-bar{padding:30px 20px}.cta-actions .btn{width:100%}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#B9CCC6;padding:64px 0 0;margin-top:var(--space-section)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px}
@media (min-width:576px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{display:block;font-size:18px;color:#fff;line-height:1.4}
.footer-brand small{display:block;font-size:12px;color:#8FA9A2;line-height:1.6}
.site-footer p{font-size:14px;line-height:1.9;color:#9FB6B0;margin:0;max-width:42ch}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-list a{font-size:14px;color:#B9CCC6;transition:color .16s ease}
.footer-list a:hover{color:var(--brand-500)}
.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#B9CCC6;line-height:1.7}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;color:var(--brand-500)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);padding:20px 0 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#8FA9A2;
}
.footer-bottom a{color:#8FA9A2}
.footer-bottom a:hover{color:var(--brand-500)}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand-700:#0B5A4B;
  --brand-600:#0E6E5C;
  --brand-500:#2FA88E;
  --brand-100:#DCEFE9;
  --accent:#E39A1F;
  --accent-soft:#FDF3E0;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --line:#DEE6E2;
  --dark:#0E1F1B;
  --ink:#12211D;
  --ink-2:#3A4B46;
  --muted:#6B7C77;
  --danger:#C4453B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,31,27,.05),0 10px 24px -16px rgba(14,31,27,.18);
  --shadow-2:0 16px 32px -18px rgba(11,90,75,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand-600)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(47,168,142,.35);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);flex-shrink:0}
.brand:hover{color:var(--brand-700)}
.brand svg{flex:none}
.brand strong{display:block;font-size:19px;line-height:1.25;letter-spacing:-.01em}
.brand small{display:block;font-size:12px;line-height:1.4;color:var(--muted)}
.search{
  flex:1 1 auto;
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  max-width:560px;
  margin:0 auto;
  padding:4px 4px 4px 16px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,168,142,.14)}
.search svg{flex:none;color:var(--muted)}
.search input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px}
.search input::placeholder{color:var(--muted)}
.search button{
  flex:none;
  height:38px;
  padding:0 20px;
  border:0;
  border-radius:8px;
  background:var(--brand-600);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .16s ease,transform .16s ease;
}
.search button:hover{background:var(--brand-700)}
.search button:active{transform:translateY(1px)}
.search-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  color:var(--brand-700);
  margin-left:auto;
  transition:background .16s ease,border-color .16s ease;
}
.search-toggle:hover{background:var(--brand-100);border-color:var(--brand-100)}
.nav-links{border-top:1px solid var(--line);background:var(--surface)}
.nav-links-inner{display:flex;gap:4px;overflow-x:auto;scrollbar-width:thin}
.nav-links-inner a{
  flex:none;
  padding:12px 18px;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:3px solid transparent;
  white-space:nowrap;
  transition:color .16s ease,background .16s ease,border-color .16s ease;
}
.nav-links-inner a:hover{color:var(--brand-700);background:rgba(220,239,233,.55)}
.nav-links-inner a.active{color:var(--brand-700);font-weight:600;border-bottom-color:var(--brand-600)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.45;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(102deg,rgba(14,31,27,.95) 0%,rgba(14,31,27,.82) 46%,rgba(11,90,75,.58) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:52px;padding-bottom:60px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:rgba(255,255,255,.7);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82);border-bottom:1px dotted rgba(255,255,255,.5)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:#fff}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  margin-bottom:18px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  color:#F7E3BE;
  background:rgba(227,154,31,.18);
  border:1px solid rgba(227,154,31,.42);
  border-radius:var(--radius-pill);
}
.hero h1{
  font-size:44px;
  line-height:1.22;
  font-weight:700;
  color:#fff;
  max-width:820px;
  letter-spacing:-.01em;
}
.hero-sub{
  margin:18px 0 0;
  max-width:640px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-secondary{background:var(--surface);color:var(--brand-700);border-color:var(--brand-100)}
.btn-secondary:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--dark);border-color:#fff}
.btn-accent{background:var(--accent);color:#2A1B02}
.btn-accent:hover{background:#D28F14;color:#2A1B02;transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:46px;
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-stats .stat b{display:block;font-size:42px;line-height:1.1;font-weight:700;color:#fff}
.hero-stats .stat b em{font-style:normal;font-size:18px;margin-left:2px;color:var(--brand-500)}
.hero-stats .stat span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.72)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--surface{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:14px}
.section-head p{margin:0;color:var(--muted);font-size:15px}
.split{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.split h2{font-size:32px;line-height:1.3;margin-bottom:16px}
.split .lead{color:var(--ink-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  font-size:13px;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:var(--radius-pill);
}
.check-list{display:grid;gap:16px}
.check-item{
  display:flex;
  gap:14px;
  padding:20px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.check-item .ico{
  flex:none;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--brand-100);
  color:var(--brand-700);
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.check-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 目录筛选与产品卡 ---------- */
.catalog-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:32px;align-items:start}
.filters{
  position:sticky;
  top:150px;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.filters h2{font-size:16px;margin-bottom:18px}
.filter-group{padding-top:18px;border-top:1px solid var(--line)}
.filter-group:first-of-type{padding-top:0;border-top:0;margin-bottom:4px}
.filter-group h3{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:10px;letter-spacing:.02em}
.filter-option{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:14px;color:var(--ink-2);cursor:pointer}
.filter-option:hover{color:var(--brand-700)}
.filter-option input{width:16px;height:16px;accent-color:var(--brand-600);cursor:pointer}
.spec-tags{display:flex;flex-wrap:wrap;gap:8px}
.spec-tags span{font-size:12px;padding:4px 10px;border:1px solid var(--line);border-radius:var(--radius-pill);color:var(--muted)}
.filter-reset{margin-top:20px;width:100%}
.catalog-main{min-width:0}
.catalog-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:22px;
  padding:14px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.catalog-bar p{margin:0;font-size:14px;color:var(--muted)}
.catalog-bar strong{color:var(--ink);font-variant-numeric:tabular-nums}
.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.product-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.product-card img{width:100%;height:172px;object-fit:cover;border-radius:0}
.product-body{display:flex;flex-direction:column;gap:12px;flex:1;padding:20px 22px 22px}
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  padding:3px 12px;
  font-size:12px;
  font-weight:600;
  color:#8A5C0A;
  background:var(--accent-soft);
  border-radius:var(--radius-pill);
}
.product-card h3{font-size:18px;line-height:1.5;font-weight:600}
.spec-list{display:grid;gap:2px}
.spec-list li{display:flex;justify-content:space-between;gap:14px;padding:6px 0;font-size:13.5px;color:var(--muted);border-bottom:1px dashed var(--line)}
.spec-list li:last-child{border-bottom:0}
.spec-list b{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;text-align:right}
.card-note{margin:0;font-size:13.5px;color:var(--ink-2);line-height:1.7}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:auto;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
}
.link-arrow svg{transition:transform .16s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.empty-state{
  grid-column:1 / -1;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  padding:48px 24px;
  text-align:center;
  color:var(--muted);
  border:1px dashed var(--brand-100);
  border-radius:var(--radius-card);
  background:var(--surface);
}
.empty-state svg{color:var(--brand-500)}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .16s ease,box-shadow .16s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.scene-card img{width:100%;height:140px;object-fit:cover;border-radius:0}
.scene-card .scene-body{padding:18px 20px 20px}
.scene-card h3{font-size:16px;font-weight:600;margin-bottom:6px}
.scene-card p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 流程 ---------- */
.process{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.process-step{
  position:relative;
  padding:26px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.process-step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:38px;
  right:-14px;
  width:8px;height:8px;
  border-top:2px solid var(--accent);
  border-right:2px solid var(--accent);
  transform:rotate(45deg);
}
.process-num{
  display:grid;
  place-items:center;
  width:34px;height:34px;
  margin-bottom:14px;
  font-size:14px;
  font-weight:700;
  color:#fff;
  background:var(--brand-600);
  border-radius:50%;
  font-variant-numeric:tabular-nums;
}
.process-step h3{font-size:16px;font-weight:600;margin-bottom:8px}
.process-step p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side h2{font-size:32px;line-height:1.3;margin-bottom:14px}
.faq-side p{color:var(--muted);font-size:15px;margin-bottom:20px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .16s ease;
}
.faq-item:hover{border-color:var(--brand-100)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:none;
  width:26px;height:26px;
  display:grid;place-items:center;
  font-size:18px;
  font-weight:400;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:50%;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:#fff;padding:56px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 88% 20%,rgba(47,168,142,.24),transparent 58%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-inner h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:8px}
.cta-inner p{margin:0;color:rgba(255,255,255,.76);font-size:15px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 表单 ---------- */
.form-layout{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.form-card{
  padding:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{display:flex;flex-direction:column;gap:8px;min-width:0}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  color:var(--ink);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  outline:none;
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--brand-100)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 3px rgba(47,168,142,.16)}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-hint{font-size:13px;color:var(--muted)}
.form-success{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:22px 24px;
  font-size:15px;
  color:var(--brand-700);
  background:var(--brand-100);
  border:1px solid rgba(47,168,142,.35);
  border-radius:var(--radius-card);
}
.form-success svg{flex:none;margin-top:3px}
.contact-panel{display:grid;gap:16px}
.contact-item{
  display:flex;
  gap:14px;
  padding:20px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.contact-item .ico{
  flex:none;
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--brand-100);
  color:var(--brand-700);
}
.contact-item h3{font-size:15px;margin-bottom:4px}
.contact-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand strong{display:block;color:#fff;font-size:17px;line-height:1.3}
.footer-brand small{display:block;color:rgba(255,255,255,.55);font-size:12px}
.site-footer p{font-size:14px;line-height:1.8;margin:0;color:rgba(255,255,255,.68)}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:rgba(255,255,255,.72)}
.footer-list a:hover{color:var(--brand-500)}
.footer-contact{display:grid;gap:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7}
.footer-contact svg{flex:none;width:18px;height:18px;margin-top:4px;color:var(--brand-500)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .catalog-layout{grid-template-columns:240px minmax(0,1fr);gap:24px}
  .split{gap:36px}
  .faq-layout{gap:36px}
  .form-layout{gap:32px}
}
@media (max-width:991px){
  .header-inner{flex-wrap:wrap;gap:14px}
  .search{order:3;flex:1 1 100%;max-width:none;display:none;margin:0}
  .site-header.search-open .search{display:flex}
  .search-toggle{display:inline-flex}
  .hero h1{font-size:34px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .section{padding:64px 0}
  .split{grid-template-columns:1fr;gap:28px}
  .catalog-layout{grid-template-columns:1fr}
  .filters{position:static;top:auto}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-auto-flow:column;grid-auto-columns:76%;grid-template-columns:none;overflow-x:auto;padding-bottom:10px}
  .process{grid-template-columns:repeat(2,minmax(0,1fr))}
  .process-step:not(:last-child)::after{display:none}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .form-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero-inner{padding-top:36px;padding-bottom:44px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats .stat b{font-size:32px}
  .section{padding:52px 0}
  .section-head h2,.split h2,.faq-side h2{font-size:22px}
  .product-grid{grid-template-columns:1fr}
  .product-card img{height:186px}
  .process{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .cta-inner h2{font-size:21px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:575px){
  body{font-size:15px;line-height:1.8}
  .brand strong{font-size:17px}
  .nav-links-inner a{padding:11px 14px;font-size:14px}
  .search button{padding:0 14px}
  .scene-grid{grid-auto-columns:88%}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-item .faq-answer{padding:0 18px 18px}
}

/* roulang page: category2 */
:root{
  --brand-700:#0B5A4B;
  --brand-600:#0E6E5C;
  --brand-500:#2FA88E;
  --brand-100:#DCEFE9;
  --accent:#E39A1F;
  --accent-soft:#FDF3E0;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --line:#DEE6E2;
  --dark:#0E1F1B;
  --ink:#12211D;
  --ink-2:#3A4B46;
  --muted:#6B7C77;
  --danger:#C4453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(14,31,27,.05), 0 10px 24px -16px rgba(14,31,27,.18);
  --shadow-2:0 16px 32px -18px rgba(11,90,75,.28);
  --container:1200px;
  --pad-x:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none}
a:hover{color:var(--brand-600)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.3}
h1{font-size:44px;line-height:1.22;font-weight:700}
h2{font-size:32px;font-weight:700}
h3{font-size:22px;line-height:1.4;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(47,168,142,.35);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad-x)}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--dark);color:#E8F1EE}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin-bottom:16px}
.section-head p{color:var(--muted);font-size:16px}
.section--dark .section-head p{color:#A9C2BB}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-100);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500)}

/* ---------- 顶部通知条 ---------- */
.topbar{background:var(--dark);color:#C9DCD6;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-inner span{display:inline-flex;align-items:center;gap:6px}
.topbar a{color:#E8F1EE}
.topbar a:hover{color:#fff}
.topbar-right{display:flex;gap:22px}
.topbar svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2}

/* ---------- 头部与搜索主导导航 ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.header-inner{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:32px;min-height:84px;padding-top:12px;padding-bottom:12px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand svg{flex:none}
.brand-text strong{display:block;font-size:20px;font-weight:700;line-height:1.2;color:var(--brand-700)}
.brand-text small{display:block;font-size:12px;color:var(--muted);letter-spacing:0}
.searchbar{position:relative;display:flex;align-items:center;max-width:560px;width:100%;margin:0 auto}
.searchbar input{
  width:100%;height:48px;border-radius:999px;border:1px solid var(--line);
  background:var(--bg);padding:0 132px 0 46px;font-size:15px;color:var(--ink);
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.searchbar input::placeholder{color:var(--muted)}
.searchbar input:hover{border-color:var(--brand-100)}
.searchbar input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,168,142,.18)}
.searchbar .search-icon{position:absolute;left:18px;width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:2}
.searchbar button{
  position:absolute;right:5px;height:38px;padding:0 20px;border:none;border-radius:9px;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;
  transition:background .16s ease,transform .16s ease;
}
.searchbar button:hover{background:var(--brand-700);transform:translateY(-1px)}
.searchbar button:active{transform:translateY(0)}
.header-cta{display:flex;align-items:center;gap:14px}
.header-phone{font-size:13px;color:var(--muted);line-height:1.4;text-align:right}
.header-phone b{display:block;font-size:16px;color:var(--brand-700);font-variant-numeric:tabular-nums}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .16s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-secondary{background:#fff;color:var(--brand-700);border-color:var(--brand-100)}
.btn-secondary:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--dark);border-color:#fff}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-700);font-size:15px}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .16s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;
}
.menu-toggle svg{width:22px;height:22px;stroke:var(--brand-700);fill:none;stroke-width:2}

/* ---------- 分类导航条 ---------- */
.nav-links{border-top:1px solid var(--line);background:var(--surface)}
.nav-links-inner{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none}
.nav-links-inner::-webkit-scrollbar{display:none}
.nav-links a{
  position:relative;display:inline-block;padding:14px 16px;font-size:15px;font-weight:600;
  color:var(--ink-2);white-space:nowrap;transition:color .16s ease,background .16s ease;
}
.nav-links a:hover{color:var(--brand-700);background:rgba(220,239,233,.5)}
.nav-links a.active{color:var(--brand-700)}
.nav-links a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;
  background:var(--brand-600);border-radius:3px 3px 0 0;
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,360px);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .24s ease;box-shadow:-20px 0 40px -24px rgba(14,31,27,.35);
  padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:22px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:20px;height:20px;stroke:var(--brand-700);fill:none;stroke-width:2}
.drawer-nav a{display:block;padding:13px 14px;border-radius:10px;font-weight:600;color:var(--ink-2)}
.drawer-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.drawer-nav a.active{background:var(--brand-100);color:var(--brand-700)}
.drawer .searchbar{max-width:none;margin:0}
.drawer .searchbar input{padding-right:100px}
.drawer .searchbar button{padding:0 14px}
.drawer-meta{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px}
.overlay{position:fixed;inset:0;background:rgba(14,31,27,.5);opacity:0;visibility:hidden;transition:opacity .24s ease;z-index:110}
.overlay.show{opacity:1;visibility:visible}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;color:#fff;
  background-image:linear-gradient(100deg,rgba(9,32,27,.92) 0%,rgba(11,64,53,.78) 52%,rgba(14,31,27,.55) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:64px 0 72px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:#9FBDB5;margin-bottom:16px}
.breadcrumb a{color:#C9DCD6}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.current{color:#8FE0CB}
.page-hero h1{max-width:880px;color:#fff}
.page-hero .lede{
  margin-top:18px;max-width:760px;font-size:17px;line-height:1.9;color:#D5E5E0;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);color:#E8F1EE;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 卖点数据条 ---------- */
.facts{background:#fff;border-bottom:1px solid var(--line)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.fact{padding:32px 28px;border-right:1px solid var(--line)}
.fact:last-child{border-right:none}
.fact-num{font-size:38px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.1}
.fact-num small{font-size:15px;font-weight:600;color:var(--brand-500);margin-left:4px}
.fact-label{font-size:14px;color:var(--ink-2);margin-top:8px;font-weight:600}
.fact-desc{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- 能力卡片 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cap-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.cap-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.cap-card .cap-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.cap-card .cap-icon svg{width:22px;height:22px;stroke:var(--brand-600);fill:none;stroke-width:1.8}
.cap-card h3{font-size:19px;margin-bottom:10px}
.cap-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.cap-list{margin-top:16px;display:grid;gap:8px}
.cap-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2)}
.cap-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand-500)}

/* ---------- 交错图文 ---------- */
.zigzag{display:grid;gap:64px}
.zz-row{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.zz-row.rev{grid-template-columns:5fr 7fr}
.zz-row.rev .zz-media{order:2}
.zz-media img{border-radius:var(--r-img);box-shadow:var(--shadow-1);aspect-ratio:16/10;object-fit:cover;width:100%}
.zz-badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:#9A6406;
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.zz-body h3{font-size:24px;margin-bottom:12px}
.zz-body p{color:var(--muted);font-size:15.5px}
.zz-points{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}
.zz-points li{font-size:14px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.zz-points li::before{content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--brand-500)}

/* ---------- 流程时间轴 ---------- */
.process{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:6%;right:6%;top:22px;height:2px;
  background:linear-gradient(90deg,var(--brand-100),var(--brand-500),var(--brand-100));
}
.step{position:relative;padding-top:0}
.step-dot{
  position:relative;z-index:2;width:46px;height:46px;border-radius:50%;background:#fff;
  border:2px solid var(--brand-600);color:var(--brand-700);font-weight:700;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px #fff;
}
.step h3{font-size:18px;margin:20px 0 8px}
.step p{font-size:14px;color:var(--muted)}
.step .step-meta{margin-top:12px;font-size:13px;color:var(--brand-600);font-weight:600}

/* ---------- 场景卡片 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .16s ease,box-shadow .16s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.scene-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.scene-card .scene-body{padding:22px}
.scene-card h3{font-size:18px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--muted)}
.scene-card .scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:12.5px;font-weight:600;color:var(--brand-700);background:var(--brand-100);
  border-radius:999px;padding:4px 11px;
}

/* ---------- 参数表 ---------- */
.spec-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:#fff}
table.spec{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}
table.spec th,table.spec td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.spec th{background:var(--brand-100);color:var(--brand-700);font-weight:600;font-size:14px}
table.spec tr:last-child td{border-bottom:none}
table.spec td{color:var(--ink-2);font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side h2{margin-bottom:14px}
.faq-side p{color:var(--muted);font-size:15px}
.faq-side .faq-contact{
  margin-top:22px;padding:20px;border:1px solid var(--brand-100);border-left:4px solid var(--brand-600);
  border-radius:var(--r-card);background:#fff;
}
.faq-side .faq-contact b{display:block;color:var(--brand-700);font-size:16px;font-variant-numeric:tabular-nums}
.faq-side .faq-contact span{font-size:13px;color:var(--muted)}
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .16s ease,box-shadow .16s ease}
.faq-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:none;padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-700)}
.faq-sign{flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:transform .2s ease,background .2s ease}
.faq-item.open .faq-sign{background:var(--brand-600);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;border-radius:18px;
  padding:52px 48px;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(47,168,142,.35),transparent 70%);
}
.cta-band h2{font-size:30px;color:#fff;margin-bottom:14px}
.cta-band p{color:#B7CDC7;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
.cta-list{margin-top:18px;display:grid;gap:8px}
.cta-list li{font-size:14px;color:#C9DCD6;display:flex;gap:8px;align-items:flex-start}
.cta-list li::before{content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--brand-500)}

/* ---------- 联系表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-grid .full{grid-column:1 / -1}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  padding:12px 14px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,168,142,.18);
}
.field input::placeholder,.field textarea::placeholder{color:#9CAAA6}
.form-note{font-size:13px;color:var(--muted);margin-top:14px}
.form-success{
  display:none;margin-top:18px;padding:14px 18px;border-radius:var(--r-btn);
  background:var(--brand-100);color:var(--brand-700);font-size:14.5px;font-weight:600;
}
.form-success.show{display:block}
.contact-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1)}
.contact-panel h3{font-size:20px;margin-bottom:16px}
.contact-list{display:grid;gap:16px}
.contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.contact-list svg{flex:none;width:19px;height:19px;stroke:var(--brand-600);fill:none;stroke-width:1.8;margin-top:4px}
.contact-list b{color:var(--ink);font-variant-numeric:tabular-nums}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#B7CDC7;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand strong{display:block;color:#fff;font-size:19px;line-height:1.2}
.footer-brand small{display:block;color:#89A79F;font-size:12px}
.site-footer p{font-size:14px;line-height:1.85;color:#9FBDB5}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px}
.footer-list{display:grid;gap:11px}
.footer-list a{font-size:14px;color:#B7CDC7}
.footer-list a:hover{color:#fff}
.footer-contact{display:grid;gap:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#B7CDC7}
.footer-contact svg{flex:none;width:18px;height:18px;stroke:var(--brand-500);fill:none;stroke-width:1.8;margin-top:4px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#7E9C94;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--pad-x:28px}
  h1{font-size:38px}
  .cap-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991px){
  :root{--pad-x:24px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  h1{font-size:34px}
  h2{font-size:26px}
  .header-inner{grid-template-columns:auto 1fr;gap:16px}
  .searchbar{display:none}
  .header-phone{display:none}
  .menu-toggle{display:flex}
  .header-cta{justify-content:flex-end}
  .facts-grid{grid-template-columns:repeat(2,1fr)}
  .fact{border-bottom:1px solid var(--line)}
  .fact:nth-child(2n){border-right:none}
  .fact:nth-child(n+3){border-bottom:none}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .zigzag{gap:48px}
  .zz-row,.zz-row.rev{grid-template-columns:1fr;gap:24px}
  .zz-row.rev .zz-media{order:0}
  .timeline{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .timeline::before{display:none}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .form-grid{grid-template-columns:1fr}
  .cap-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .step{padding-left:58px}
  .step-dot{position:absolute;left:0;top:0}
}
@media (max-width:575px){
  :root{--pad-x:16px}
  body{font-size:15px;line-height:1.8}
  h1{font-size:28px;line-height:1.3}
  h2{font-size:22px}
  h3{font-size:18px}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .page-hero{padding:40px 0 48px}
  .page-hero .lede{font-size:15px}
  .facts-grid{grid-template-columns:1fr}
  .fact{border-right:none;border-bottom:1px solid var(--line);padding:24px 20px}
  .fact:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr}
  .brand-text small{display:none}
  .cta-band{padding:32px 22px;border-radius:14px}
  .cta-band h2{font-size:22px}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .brand-text strong{font-size:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --brand-700:#0B5A4B;
  --brand-600:#0E6E5C;
  --brand-500:#2FA88E;
  --brand-100:#DCEFE9;
  --accent:#E39A1F;
  --accent-soft:#FDF3E0;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --line:#DEE6E2;
  --dark:#0E1F1B;
  --ink:#12211D;
  --ink-2:#3A4B46;
  --muted:#6B7C77;
  --danger:#C4453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,31,27,.05), 0 10px 24px -16px rgba(14,31,27,.18);
  --sh-2:0 16px 32px -18px rgba(11,90,75,.28);
  --w:1200px;
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color 160ms ease}
a:hover{color:var(--brand-600)}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(47,168,142,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 32px}
.narrow{max-width:900px;margin:0 auto}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.section-head{margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-600);text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
h2.section-title{font-size:32px;margin-bottom:16px}
.section-desc{color:var(--ink-2);max-width:720px}
.muted{color:var(--muted)}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform 160ms ease,background 160ms ease,color 160ms ease,box-shadow 160ms ease,border-color 160ms ease;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 28px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-secondary{background:#fff;color:var(--brand-700);border:1px solid var(--brand-100)}
.btn-secondary:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-ghost:hover{background:#fff;color:var(--dark);transform:translateY(-1px)}
.btn-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-weight:600;font-size:14px;
}
.btn-arrow span{transition:transform 160ms ease}
.btn-arrow:hover span{transform:translateX(4px)}

/* ---------- 顶栏通知条 ---------- */
.topbar{background:var(--dark);color:rgba(255,255,255,.82);font-size:13px;line-height:36px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-list{display:flex;align-items:center;gap:22px}
.topbar-list li{display:flex;align-items:center;gap:7px}
.topbar-list svg{width:15px;height:15px;stroke:var(--brand-500)}
.topbar a{color:rgba(255,255,255,.82)}
.topbar a:hover{color:#fff}
.topbar-time{color:rgba(255,255,255,.6)}

/* ---------- 头部 ---------- */
.site-header{position:relative;background:var(--surface);border-bottom:1px solid var(--line);z-index:60}
.header-main{padding:18px 0}
.header-main-inner{display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink)}
.brand-mark{display:block;width:44px;height:44px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:19px;font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.02em}
.search-box{
  display:flex;align-items:center;
  flex:1 1 auto;max-width:560px;height:48px;
  margin:0 auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 6px 0 18px;
  transition:border-color 160ms ease,box-shadow 160ms ease;
}
.search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,168,142,.18)}
.search-box svg{width:18px;height:18px;flex:0 0 auto;stroke:var(--brand-600);margin-right:10px}
.search-box input{
  flex:1 1 auto;height:100%;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink);min-width:0;
}
.search-box input::placeholder{color:var(--muted)}
.search-box button{
  flex:0 0 auto;height:36px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;
  transition:background 160ms ease;
}
.search-box button:hover{background:var(--brand-700)}
.header-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  align-items:center;justify-content:center;background:#fff;
  transition:background 160ms ease,border-color 160ms ease;
}
.icon-btn svg{width:20px;height:20px;stroke:var(--ink)}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-100)}
.search-panel{display:none;border-top:1px solid var(--line);background:var(--surface);padding:18px 0 22px}
.search-panel .search-box{max-width:none;margin:0 0 14px}
.hot-words{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.hot-words a{
  padding:5px 12px;border-radius:var(--r-pill);background:var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:500;
}
.hot-words a:hover{background:var(--brand-500);color:#fff}

/* ---------- 导航入口条 ---------- */
.nav-links{border-top:1px solid var(--line);background:var(--surface)}
.nav-links-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.nav-links-inner::-webkit-scrollbar{display:none}
.nav-links a{
  position:relative;display:block;padding:14px 16px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color 160ms ease,background 160ms ease;
}
.nav-links a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;
  transition:transform 160ms ease;
}
.nav-links a:hover{color:var(--brand-700);background:rgba(220,239,233,.4)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand-700);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}

/* ---------- 分类头图 ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:
    linear-gradient(110deg,rgba(9,32,27,.93) 0%,rgba(11,60,50,.86) 52%,rgba(11,90,75,.68) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.12;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.page-hero-inner{position:relative;z-index:2;padding:68px 0 76px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#fff;font-weight:600}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:#7A4E05;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
  max-width:820px;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:#8FE3CD}
.hero-lead{max-width:760px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.85)}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;
}
.hero-fact{
  display:flex;flex-direction:column;gap:2px;
  min-width:150px;padding:14px 18px;border-radius:var(--r-card);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(2px);
}
.hero-fact b{font-size:24px;font-weight:700;line-height:1.2;color:#fff}
.hero-fact span{font-size:12.5px;color:rgba(255,255,255,.72)}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin-bottom:20px;
}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background 160ms ease,color 160ms ease,border-color 160ms ease,transform 160ms ease;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px)}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.result-count{font-size:13.5px;color:var(--muted)}
.result-count b{color:var(--brand-700);font-weight:700}

/* ---------- 行式资料列表 ---------- */
.doc-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.doc-row{
  display:flex;align-items:center;gap:18px;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background 160ms ease;
}
.doc-row:last-child{border-bottom:0}
.doc-row:hover{background:rgba(220,239,233,.35)}
.doc-type{
  flex:0 0 auto;width:58px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.doc-type.sds{background:var(--accent-soft);color:#8A5A08}
.doc-type.xls{background:#E7F0FB;color:#2B5C93}
.doc-type.doc{background:#EFEAFB;color:#5A3E9C}
.doc-main{flex:1 1 auto;min-width:0}
.doc-main h3{font-size:16.5px;font-weight:600;line-height:1.5;margin-bottom:4px;letter-spacing:0}
.doc-main p{font-size:13.5px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.doc-side{
  flex:0 0 auto;display:flex;align-items:center;gap:18px;
  font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.doc-action{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--brand-700);white-space:nowrap;
}
.doc-action span{transition:transform 160ms ease}
.doc-action:hover span{transform:translateX(4px)}
.doc-empty{
  display:none;padding:44px 24px;text-align:center;
  border:1px dashed var(--brand-100);border-radius:var(--r-card);
  background:var(--surface);color:var(--muted);font-size:14px;
}

/* ---------- 覆盖范围卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform 160ms ease,box-shadow 160ms ease,border-color 160ms ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-100)}
.info-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.info-icon svg{width:22px;height:22px;stroke:var(--brand-700)}
.info-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.info-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2);margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--bg);border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-2);
}

/* ---------- 流程 ---------- */
.flow{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
}
.flow-step{padding:28px 24px;position:relative;border-right:1px solid var(--line)}
.flow-step:last-child{border-right:0}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:700;
  margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.flow-step p{font-size:13.5px;line-height:1.75;color:var(--muted)}
.flow-arrow{
  position:absolute;right:-9px;top:42px;z-index:2;
  width:18px;height:18px;border-radius:50%;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:11px;font-weight:700;
}
.flow-step:last-child .flow-arrow{display:none}

/* ---------- 资料样例说明 ---------- */
.sample{
  display:grid;grid-template-columns:340px 1fr;gap:32px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.sample-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.sample-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.sample-body h3{font-size:22px;font-weight:600;margin-bottom:12px}
.sample-body p{font-size:15px;line-height:1.9;color:var(--ink-2);margin-bottom:16px}
.sample-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}
.sample-list li{
  display:flex;align-items:flex-start;gap:8px;
  font-size:14px;color:var(--ink-2);line-height:1.7;
}
.sample-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;
  border-radius:2px;background:var(--brand-500);transform:rotate(45deg);
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-aside h2{font-size:28px;margin-bottom:14px}
.faq-aside p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color 160ms ease,box-shadow 160ms ease;
}
.faq-item.open{border-color:var(--brand-100);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color 160ms ease;
}
.faq-q:hover{color:var(--brand-700)}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;transition:transform 200ms ease,background 200ms ease;
}
.faq-item.open .faq-sign{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;left:-80px;top:-80px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(47,168,142,.28),transparent 68%);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:300px;height:300px;
  border:1px solid rgba(47,168,142,.22);transform:rotate(8deg);border-radius:24px;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;
}
.cta-inner h2{font-size:30px;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.75);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{display:block;font-size:17px;color:#fff;line-height:1.3}
.footer-brand small{font-size:12px;color:rgba(255,255,255,.55)}
.site-footer p{line-height:1.85;color:rgba(255,255,255,.62);font-size:13.5px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-list li{margin-bottom:10px}
.footer-list a{color:rgba(255,255,255,.72);font-size:13.5px}
.footer-list a:hover{color:#fff}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:13.5px;line-height:1.6}
.footer-contact svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:var(--brand-500)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0;font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:38px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .search-box{display:none}
  .icon-btn{display:inline-flex}
  .header-actions .menu-toggle{display:none}
  h2.section-title{font-size:28px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-step:nth-child(2){border-right:0}
  .flow-step:nth-child(1),.flow-step:nth-child(2){border-bottom:1px solid var(--line)}
  .flow-arrow{display:none}
  .sample{grid-template-columns:1fr;gap:24px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .page-hero-inner{padding:48px 0 56px}
  .page-hero h1{font-size:30px;line-height:1.3}
  .hero-lead{font-size:15px}
  .hero-facts{gap:10px}
  .hero-fact{min-width:calc(50% - 5px);flex:1 1 auto;padding:12px 14px}
  .hero-fact b{font-size:20px}
  .section{padding:56px 0}
  h2.section-title{font-size:22px}
  .card-grid{grid-template-columns:1fr}
  .sample-list{grid-template-columns:1fr}
  .doc-side{flex-direction:column;align-items:flex-end;gap:6px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .topbar{font-size:12px}
  .topbar-list li:not(:first-child){display:none}
  .topbar-time{display:none}
  .brand-text strong{font-size:17px}
  .brand-mark{width:38px;height:38px}
  .header-actions .menu-toggle{display:inline-flex}
  .nav-links{display:none}
  .site-header.drawer-open .nav-links{
    display:block;position:absolute;left:0;right:0;top:100%;
    background:var(--surface);border-top:1px solid var(--line);
    box-shadow:0 20px 30px -20px rgba(14,31,27,.35);
  }
  .site-header.drawer-open .nav-links-inner{flex-direction:column;align-items:stretch;gap:0;padding:8px 0}
  .site-header.drawer-open .nav-links a{padding:14px 20px;font-size:15px;border-radius:0}
  .site-header.drawer-open .nav-links a::after{display:none}
  .site-header.drawer-open .nav-links a.active{background:var(--brand-100)}
  .doc-row{flex-wrap:wrap;gap:12px;padding:18px}
  .doc-side{width:100%;flex-direction:row;justify-content:space-between;align-items:center}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .flow{grid-template-columns:1fr}
  .flow-step{border-right:0;border-bottom:1px solid var(--line)}
  .flow-step:last-child{border-bottom:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* roulang page: category4 */
:root{
  --brand-700:#0B5A4B;
  --brand-600:#0E6E5C;
  --brand-500:#2FA88E;
  --brand-100:#DCEFE9;
  --accent:#E39A1F;
  --accent-soft:#FDF3E0;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --line:#DEE6E2;
  --dark:#0E1F1B;
  --ink:#12211D;
  --ink-2:#3A4B46;
  --muted:#6B7C77;
  --error:#C4453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,31,27,.05),0 10px 24px -16px rgba(14,31,27,.18);
  --sh-2:0 16px 32px -18px rgba(11,90,75,.28);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  letter-spacing:0;
}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:-0.01em;font-weight:700}
h1{font-size:44px;line-height:1.22}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px;line-height:1.4;font-weight:600}
p{margin:0}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand-600)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit;color:var(--ink)}
svg{flex-shrink:0}
:focus-visible{outline:3px solid rgba(47,168,142,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部通知条 ---------- */
.topbar{background:var(--dark);color:#CFE3DD;font-size:13px;line-height:1.6}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-block:6px}
.topbar-item{display:inline-flex;align-items:center;gap:6px}
.topbar-item svg{width:15px;height:15px;color:var(--brand-500)}
.topbar-right{display:flex;align-items:center;gap:20px}
.topbar a{color:#CFE3DD}
.topbar a:hover{color:#fff}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);box-shadow:0 1px 0 var(--line)}
.header-main{padding-block:14px}
.header-inner{display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{width:40px;height:40px}
.logo-text strong{display:block;font-size:18px;line-height:1.25;font-weight:700;letter-spacing:-0.01em}
.logo-text small{display:block;font-size:11.5px;color:var(--muted);line-height:1.4;letter-spacing:.04em}
.search-form{
  flex:1 1 auto;
  max-width:560px;
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  padding:0 6px 0 16px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.search-form:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,168,142,.16)}
.search-form svg{width:18px;height:18px;color:var(--muted)}
.search-input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px;height:100%}
.search-input::placeholder{color:#8FA09A}
.search-btn{
  flex:0 0 auto;
  height:38px;
  padding:0 22px;
  border:0;
  border-radius:9px;
  background:var(--brand-600);
  color:#fff;
  font-weight:600;
  font-size:14.5px;
  transition:background .16s ease,transform .16s ease;
}
.search-btn:hover{background:var(--brand-700);transform:translateY(-1px)}
.search-btn:active{transform:translateY(0)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.header-phone{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.header-phone svg{width:17px;height:17px;color:var(--brand-600)}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:var(--r-btn);
  color:var(--ink);
}
.menu-toggle svg{width:20px;height:20px}
.icon-search{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:var(--r-btn);
  color:var(--ink);
}
.icon-search svg{width:19px;height:19px}

/* ---------- 导航链接行 ---------- */
.nav-links{border-top:1px solid var(--line);background:var(--surface)}
.nav-links-inner{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:13px 16px;
  font-size:15px;
  color:var(--ink-2);
  font-weight:500;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:6px;
  height:2px;
  background:var(--brand-600);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand-700);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,31,27,.5);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(88vw,360px);
  background:var(--surface);z-index:90;
  transform:translateX(-102%);
  transition:transform .24s ease;
  display:flex;flex-direction:column;
  padding:18px 20px 28px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);background:var(--surface);border-radius:9px;display:flex;align-items:center;justify-content:center;color:var(--ink)}
.drawer-close svg{width:18px;height:18px}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 6px 0 14px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);margin-bottom:18px}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px}
.drawer-search button{height:36px;padding:0 16px;border:0;border-radius:8px;background:var(--brand-600);color:#fff;font-weight:600;font-size:14px}
.drawer-links{display:flex;flex-direction:column;gap:2px}
.drawer-links a{padding:13px 12px;border-radius:10px;font-size:16px;color:var(--ink-2);font-weight:500}
.drawer-links a:hover{background:var(--brand-100);color:var(--brand-700)}
.drawer-links a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);display:flex;flex-direction:column;gap:8px}
.drawer-foot strong{color:var(--ink);font-size:15px}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;
  color:#fff;
  background-image:linear-gradient(100deg,rgba(11,42,36,.94) 0%,rgba(11,42,36,.82) 46%,rgba(11,42,36,.58) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;right:-90px;top:-60px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(47,168,142,.26),transparent 68%);
  border-radius:50%;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;padding-top:56px;padding-bottom:64px;max-width:1200px}
.breadcrumb{font-size:12px;color:rgba(255,255,255,.7);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.breadcrumb a{color:rgba(255,255,255,.7)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#8FE0CB}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(227,154,31,.16);
  border:1px solid rgba(227,154,31,.4);
  color:var(--accent);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.page-hero h1{color:#fff;max-width:820px;margin-bottom:18px}
.page-hero h1 em{font-style:normal;color:#8FE0CB}
.hero-lead{max-width:720px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.86)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;list-style:none;padding:0}
.hero-tags li{
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.18);
  font-size:13.5px;color:rgba(255,255,255,.9);
  font-variant-numeric:tabular-nums;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
  white-space:nowrap;
}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:var(--surface);color:var(--brand-700);border-color:var(--brand-100)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--brand-700);border-color:#fff}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-arrow{
  display:inline-flex;align-items:center;gap:6px;
  background:none;border:0;padding:0;
  color:var(--brand-700);font-weight:600;font-size:15px;
}
.btn-arrow svg{width:16px;height:16px;transition:transform .16s ease}
.btn-arrow:hover svg{transform:translateX(4px)}

/* ---------- 板块 ---------- */
.section{padding-block:96px}
.section-alt{background:var(--surface);border-block:1px solid var(--line)}
.section-dark{background:var(--dark);color:#C7D8D3}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}
.section-dark .section-head h2,.section-dark h2,.section-dark h3{color:#fff}
.section-dark .section-head p{color:#9FB5AF}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}

/* ---------- 行业 Tab ---------- */
.tabs{margin-top:8px}
.tab-list{
  display:flex;gap:10px;flex-wrap:nowrap;overflow-x:auto;
  padding-bottom:14px;margin-bottom:32px;
  scrollbar-width:thin;
}
.tab-btn{
  flex:0 0 auto;
  height:42px;padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  font-size:15px;font-weight:500;
  transition:all .16s ease;
}
.tab-btn:hover{border-color:var(--brand-500);color:var(--brand-700)}
.tab-btn[aria-selected="true"]{
  background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600;
  box-shadow:var(--sh-2);
}
.tab-panel{display:none;animation:fadeUp .32s ease both}
.tab-panel.is-active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.panel-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px;box-shadow:var(--sh-1);
}
.panel-grid h3{margin-bottom:14px;font-size:24px}
.panel-grid p{color:var(--ink-2)}
.panel-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.panel-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--ink-2)}
.panel-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:9px;height:9px;border-radius:2px;
  background:var(--brand-500);transform:rotate(45deg);
}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:#8A5A0C;
  font-size:13px;font-weight:500;
}
.panel-figure{margin:0}
.panel-figure img{width:100%;height:260px;object-fit:cover;border-radius:var(--r-img)}
.panel-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.7}

/* ---------- 大图拼贴 ---------- */
.mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:176px;gap:18px;grid-auto-flow:dense}
.mosaic-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:var(--dark);
}
.mosaic-item:first-child{grid-column:span 2;grid-row:span 2}
.mosaic-item img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-card);transition:transform .4s ease}
.mosaic-item:hover img{transform:scale(1.05)}
.mosaic-item figcaption{
  position:absolute;inset:auto 0 0 0;
  padding:30px 20px 16px;
  background:linear-gradient(to top,rgba(11,42,36,.9),rgba(11,42,36,0));
  color:#fff;font-size:15px;font-weight:600;line-height:1.5;
}
.mosaic-item figcaption span{display:block;font-size:12.5px;font-weight:400;color:rgba(255,255,255,.78);margin-top:4px}

/* ---------- 案例横向滚动 ---------- */
.rail-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}
.rail-nav{display:flex;gap:10px}
.rail-nav button{
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
  transition:all .16s ease;
}
.rail-nav button:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}
.rail-nav svg{width:18px;height:18px}
.case-rail{
  display:flex;gap:22px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:16px;
  scrollbar-width:thin;
}
.case-card{
  flex:0 0 340px;scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-100)}
.case-card img{width:100%;height:180px;object-fit:cover;border-radius:0}
.case-body{padding:22px}
.case-tag{
  display:inline-block;padding:4px 11px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:#8A5A0C;font-size:12.5px;font-weight:600;margin-bottom:12px;
}
.case-body h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.case-body p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.case-metric{
  display:flex;align-items:baseline;gap:8px;
  padding-top:14px;border-top:1px solid var(--line);
}
.case-metric strong{font-size:26px;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.1}
.case-metric span{font-size:13px;color:var(--muted)}

/* ---------- 流程 ---------- */
.section-dark .eyebrow{color:var(--brand-500)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;
  padding:28px 24px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.1);
  transition:background .18s ease,border-color .18s ease;
}
.step:hover{background:rgba(47,168,142,.12);border-color:rgba(47,168,142,.4)}
.step-num{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-600);color:#fff;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14.5px;color:#9FB5AF}
.step::after{
  content:"";position:absolute;right:-14px;top:46px;
  width:10px;height:10px;border-top:2px solid var(--accent);border-right:2px solid var(--accent);
  transform:rotate(45deg);
}
.step:last-child::after{display:none}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro p{color:var(--muted);margin-top:14px;font-size:15.5px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.open{border-color:var(--brand-100);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--brand-700);
  transition:transform .2s ease,background .2s ease;
}
.faq-icon svg{width:14px;height:14px}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand-100);border-color:var(--brand-100)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--dark);
  color:#fff;
  overflow:hidden;
  padding-block:64px;
}
.cta-band::before{
  content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(47,168,142,.22),transparent 70%);border-radius:50%;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-inner p{color:#9FB5AF;max-width:620px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-contact{display:flex;flex-wrap:wrap;gap:26px;margin-top:22px;list-style:none;padding:0}
.cta-contact li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#C7D8D3;font-variant-numeric:tabular-nums}
.cta-contact svg{width:16px;height:16px;color:var(--brand-500)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#9FB5AF;padding-top:72px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand strong{display:block;font-size:17px;color:#fff;line-height:1.3}
.footer-brand small{display:block;font-size:12px;color:#7E948E;letter-spacing:.04em}
.site-footer p{color:#9FB5AF;line-height:1.85}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-list a{color:#9FB5AF}
.footer-list a:hover{color:#8FE0CB}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:13px}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;color:#9FB5AF;line-height:1.7}
.footer-contact svg{width:17px;height:17px;color:var(--brand-500);margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-block:22px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E948E;
}
.footer-bottom p{margin:0;font-size:13px;color:#7E948E}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding-inline:26px}
  h1{font-size:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-grid > div:last-child{grid-column:span 3}
}
@media (max-width:991px){
  .search-form{display:none}
  .icon-search{display:flex}
  .header-phone{display:none}
  .panel-grid{grid-template-columns:1fr;gap:28px;padding:28px}
  .panel-figure img{height:220px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .mosaic{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
  .mosaic-item:first-child{grid-column:span 2;grid-row:span 2}
  .section{padding-block:76px}
}
@media (max-width:767px){
  .container{padding-inline:16px}
  h1{font-size:30px}
  h2{font-size:23px}
  h3{font-size:19px}
  body{font-size:15.5px;line-height:1.8}
  .topbar-right .topbar-item:not(:first-child){display:none}
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .logo-text strong{font-size:16.5px}
  .logo-mark{width:34px;height:34px}
  .page-hero .container{padding-top:36px;padding-bottom:46px}
  .hero-lead{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section{padding-block:56px}
  .section-head{margin-bottom:32px}
  .panel-grid{padding:22px}
  .panel-figure img{height:190px}
  .case-card{flex:0 0 82vw}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-grid > div:last-child{grid-column:auto}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .mosaic{grid-template-columns:1fr;grid-auto-rows:200px}
  .mosaic-item:first-child{grid-column:span 1;grid-row:span 1}
  .steps{grid-template-columns:1fr}
  .steps{gap:16px}
  .tab-panel .panel-grid{padding:18px}
  .faq-q{padding:17px 18px;font-size:16px}
  .faq-a-inner{padding:0 18px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}