/* roulang page: index */
:root{
  --brand:#0E7A6B;
  --brand-dark:#0A5C51;
  --brand-light:#E6F3F0;
  --accent:#E8912F;
  --accent-light:#FDF1E0;
  --ink:#0E211E;
  --text-2:#3C5350;
  --muted:#7A8E8B;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --line:#E2EBE9;
  --deep:#0B2A26;
  --success:#1B9E6B;
  --info:#2F7FB5;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px -10px rgba(11,42,38,.16);
  --sh-2:0 20px 48px -20px rgba(11,42,38,.24);
  --t:240ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.28}
h1{font-size:clamp(28px,4.4vw,52px);line-height:1.18;letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
a:hover{color:var(--brand-dark)}
img{max-width:100%;display:block;height:auto}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
input,textarea,select{font:inherit}
:focus-visible{outline:3px solid rgba(14,122,107,.35);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:Inter,system-ui,-apple-system,"PingFang SC",sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:20px;left:0;right:0;z-index:120;
  padding:0 24px;pointer-events:none;
}
.nav-shell{
  max-width:1200px;margin:0 auto;height:60px;
  display:flex;align-items:center;gap:20px;
  padding:0 14px 0 20px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  background:transparent;
  transition:background var(--t),box-shadow var(--t),border-color var(--t),backdrop-filter var(--t);
  pointer-events:auto;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-color:var(--line);
  box-shadow:var(--sh-1);
}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0E7A6B,#12A08A 60%,#5FC7B4);
  color:#fff;
}
.brand-mark svg{width:21px;height:21px}
.brand-text{font-size:18px;font-weight:600;letter-spacing:.01em;color:var(--ink);white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:10px;margin-left:12px}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:var(--r-pill);font-size:15px;color:var(--text-2);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-link.is-active{color:var(--brand);font-weight:600;background:var(--brand-light)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--t),opacity var(--t)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
  background:#fff;border-radius:20px 0 0 20px;
  box-shadow:-20px 0 48px -24px rgba(11,42,38,.35);
  transform:translateX(104%);transition:transform 280ms cubic-bezier(.2,.7,.3,1);
  z-index:130;padding:26px 20px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer .drawer-title{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:10px}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 16px;margin-bottom:8px;
  border-radius:var(--r-sm);font-size:15px;color:var(--text-2);background:var(--bg);
}
.nav-drawer a.drawer-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-drawer a.drawer-link.is-active{color:var(--brand);font-weight:600;background:var(--brand-light)}
.nav-drawer .drawer-cta{margin-top:14px}
.nav-scrim{
  position:fixed;inset:0;background:rgba(11,42,38,.42);z-index:125;
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.nav-scrim.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),background var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
  text-align:center;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -14px rgba(14,122,107,.85)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#fff;color:var(--brand)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow:hover{gap:10px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:150px 0 88px;background:var(--bg);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(760px 520px at 10% 6%,rgba(14,122,107,.13),transparent 64%);
  pointer-events:none;
}
.hero-arc{
  position:absolute;right:-90px;bottom:-60px;width:620px;max-width:none;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;min-height:620px;display:flex;align-items:center}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;width:100%}
.hero-copy{grid-column:span 5}
.hero-media{grid-column:span 7}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand-dark);
  font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block}
.hero h1{margin-bottom:20px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:460px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-mini{display:flex;flex-wrap:wrap;gap:10px}
.mini-chip{
  display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:13px;color:var(--text-2);
}
.mini-chip svg{width:15px;height:15px;color:var(--brand)}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
}

/* ---------- 信任条 ---------- */
.trust-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0}
.trust-list{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.trust-item{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-2);line-height:1.5}
.trust-icon{
  width:40px;height:40px;flex:none;border-radius:12px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.trust-icon svg{width:20px;height:20px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:52px;flex-wrap:wrap}
.section-head .head-text{max-width:700px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;
  color:var(--brand);margin-bottom:12px;
}
.section-sub{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.8}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.bento-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 30px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,122,107,.3)}
.bento-card:hover .bento-icon{background:var(--brand);color:#fff}
.bento-a{grid-column:span 3;grid-row:span 2}
.bento-b{grid-column:span 3}
.bento-c{grid-column:span 3}
.bento-d{grid-column:span 3}
.bento-e{grid-column:span 3}
.bento-icon{
  width:48px;height:48px;border-radius:14px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
  transition:background var(--t),color var(--t);
}
.bento-icon svg{width:24px;height:24px}
.bento-card h3{margin-bottom:12px}
.bento-card p{font-size:15px;line-height:1.8;color:var(--text-2)}
.bento-list{margin-top:20px;display:grid;gap:10px}
.bento-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2)}
.bento-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);
}

/* ---------- 使用场景 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{position:relative;padding-right:16px}
.step-num{
  width:40px;height:40px;border-radius:50%;border:1.5px solid var(--brand);
  color:var(--brand);font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;background:#fff;position:relative;z-index:2;
  font-family:Inter,system-ui,sans-serif;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}
.step::after{
  content:"";position:absolute;left:56px;right:8px;top:20px;height:0;
  border-top:1px dashed var(--line);z-index:1;
}
.step:last-child::after{display:none}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.case-main{
  grid-column:span 7;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;
}
.case-main img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md)}
.case-main .case-client{font-size:13px;color:var(--muted);margin-bottom:10px}
.case-main h3{font-size:22px;margin-bottom:12px}
.case-main p{font-size:15px;line-height:1.8;margin-bottom:20px}
.metrics{display:flex;flex-wrap:wrap;gap:26px}
.metric .metric-num{font-size:32px;font-weight:600;color:var(--accent);line-height:1.2;font-family:Inter,system-ui,sans-serif}
.metric .metric-label{font-size:13px;color:var(--muted)}
.case-side{grid-column:span 5;display:grid;gap:24px;align-content:start}
.case-quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
}
.case-quote p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:14px}
.case-quote .who{font-size:13px;color:var(--muted)}
.case-quote .quote-mark{color:var(--brand);font-size:22px;font-weight:700;line-height:1;display:block;margin-bottom:8px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 28px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.price-card.is-featured{border:2px solid var(--brand);transform:scale(1.03);box-shadow:var(--sh-2)}
.price-card.is-featured:hover{transform:scale(1.03) translateY(-3px)}
.price-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--accent-light);color:#8A5210;border:1px solid rgba(232,145,47,.4);
  font-size:12px;font-weight:600;height:28px;padding:0 16px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;white-space:nowrap;
}
.price-name{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:14px}
.price-value{display:flex;align-items:baseline;gap:6px;margin-bottom:10px}
.price-value .n{font-size:40px;font-weight:600;color:var(--brand);line-height:1;font-family:Inter,system-ui,sans-serif}
.price-value .u{font-size:14px;color:var(--muted)}
.price-desc{font-size:14px;color:var(--muted);margin-bottom:22px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.price-list{display:grid;gap:12px;margin-bottom:26px}
.price-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.price-list li .mk{
  flex:none;width:18px;height:18px;border-radius:50%;margin-top:4px;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
}
.price-list li.yes .mk{background:var(--brand-light);color:var(--brand)}
.price-list li.no{color:var(--muted)}
.price-list li.no .mk{background:#F1F4F3;color:#9AA9A6}

/* ---------- 资讯 / CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,122,107,.28)}
.news-cover{display:block;overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:22px 22px 18px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:600;
  margin-bottom:12px;align-self:flex-start;
}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand)}
.news-card .news-summary{
  font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-foot time{font-size:13px;color:var(--muted)}
.news-arrow{color:var(--brand);font-size:16px;transition:transform var(--t)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;min-height:120px;border-radius:var(--r-md);
  background:var(--brand-light);border:1px dashed rgba(14,122,107,.28);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--text-2);font-size:15px;
}
.empty-state svg{width:42px;height:42px;color:rgba(14,122,107,.5)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;width:20px;height:20px;flex:none;
  transition:transform var(--t);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{top:0;left:9px;width:2px;height:20px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:24px;overflow:hidden;
  background:linear-gradient(135deg,#0E7A6B,#12A08A 55%,#5FC7B4);
  padding:68px 52px;text-align:center;color:#fff;
}
.cta-band h2{color:#fff;margin-bottom:16px}
.cta-band p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:620px;margin:0 auto 32px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-arc{position:absolute;left:-60px;top:-40px;width:420px;max-width:none;opacity:.5;pointer-events:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand .brand-mark{border-radius:12px}
.footer-brand span{font-size:17px;font-weight:600;color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links a{display:block;padding:7px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{font-size:14px;padding:7px 0;color:rgba(255,255,255,.72)}
.footer-contact li b{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 22px}
  .hero{padding:140px 0 80px}
}
@media (max-width:1023px){
  .nav-main,.nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .site-header{top:12px;padding:0 16px}
  .nav-shell{height:52px;padding:0 10px 0 14px}
  .brand-text{font-size:17px}
  .section{padding:72px 0}
  .hero{padding:120px 0 64px}
  .hero-inner{min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy,.hero-media{grid-column:span 1}
  .hero-sub{max-width:none}
  .trust-list{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-a,.bento-b,.bento-c,.bento-d,.bento-e{grid-column:span 1;grid-row:auto}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:0 0 26px 62px;position:relative}
  .step::before{content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;background:var(--brand-light)}
  .step:last-child::before{display:none}
  .step::after{display:none}
  .step-num{position:absolute;left:0;top:0;margin-bottom:0}
  .case-main{grid-column:span 12;grid-template-columns:1fr}
  .case-side{grid-column:span 12;grid-template-columns:1fr 1fr}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.is-featured{transform:none}
  .price-card.is-featured:hover{transform:translateY(-3px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:52px 28px}
}
@media (max-width:767px){
  .trust-list{grid-template-columns:repeat(2,1fr);gap:18px}
  .bento{grid-template-columns:1fr}
  .bento-a{grid-row:auto}
  .case-side{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:575px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:104px 0 56px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .section-head{margin-bottom:34px}
  .bento-card{padding:26px 22px}
  .price-card{padding:28px 22px}
  .news-body{padding:18px 18px 16px}
  .faq-item summary{padding:18px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
  .cta-band{padding:42px 22px;border-radius:20px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:52px 0 0;margin-top:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand:#0E7A6B;
  --brand-dark:#0A5C51;
  --brand-soft:#E6F3F0;
  --accent:#E8912F;
  --accent-soft:#FDF1E0;
  --text:#0E211E;
  --text-2:#3C5350;
  --muted:#7A8E8B;
  --bg:#F6F9F8;
  --surface:#FFFFFF;
  --line:#E2EBE9;
  --deep:#0B2A26;
  --success:#1B9E6B;
  --warn:#D98324;
  --danger:#C8453C;
  --info:#2F7FB5;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --pill:999px;
  --shadow-sm:0 8px 24px -10px rgba(11,42,38,.16);
  --shadow-lg:0 20px 48px -20px rgba(11,42,38,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid rgba(14,122,107,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1280px){.container{max-width:1280px}}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:20px;left:0;right:0;z-index:80;padding:0 20px;pointer-events:none}
.header-inner{
  max-width:1240px;margin:0 auto;height:60px;
  display:flex;align-items:center;gap:20px;
  padding:0 14px 0 18px;border-radius:var(--pill);
  border:1px solid transparent;background:transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease),backdrop-filter .28s var(--ease);
  pointer-events:auto;
}
.site-header.is-scrolled .header-inner{
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-color:var(--line);
  box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--text)}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#12A08A 70%);
  color:#fff;
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:17.5px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  font-size:14.5px;color:var(--text-2);padding:8px 14px;border-radius:var(--pill);
  white-space:nowrap;transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);background:var(--brand-soft);font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--pill);
  align-items:center;justify-content:center;color:var(--text);
  border:1px solid var(--line);background:rgba(255,255,255,.8);
}
.nav-toggle svg{width:20px;height:20px}
.nav-mask{position:fixed;inset:0;background:rgba(11,42,38,.4);opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:70}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(14,122,107,.7)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#EAF6F3;color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ============ 通用板块 ============ */
main{display:block}
.section{padding:clamp(56px,7vw,96px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--pill);margin-bottom:16px;
}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,48px)}
.section-head h2{font-size:clamp(24px,3vw,36px);color:var(--text);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16.5px}
.lead{color:var(--text-2);font-size:17px;line-height:1.85}

/* ============ 内页首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(128px,15vw,168px) 0 clamp(56px,7vw,88px);
  background:
    radial-gradient(900px 420px at 8% -10%,rgba(14,122,107,.14),transparent 62%),
    linear-gradient(180deg,#F1F7F5 0%,var(--bg) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:460px;height:460px;border-radius:50%;
  border:1.5px solid rgba(14,122,107,.12);pointer-events:none;
}
.hero-split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:clamp(28px,4vw,56px);align-items:center;position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--brand)}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px}
.breadcrumb span.sep{color:#B9C7C4}
.page-hero h1{font-size:clamp(28px,4.2vw,46px);line-height:1.18;font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.hero-sub{font-size:17.5px;color:var(--text-2);max-width:560px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.mini-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-2);
  background:#fff;border:1px solid var(--line);border-radius:var(--pill);
  padding:7px 14px;
}
.mini-badge i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:inline-block}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
}
.hero-visual::before{
  content:"";position:absolute;left:-18px;top:-18px;width:96px;height:96px;
  border-radius:24px;background:var(--accent-soft);z-index:-1;
}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px clamp(20px,3vw,34px);box-shadow:var(--shadow-sm);
}
.stat-item{display:flex;flex-direction:column;gap:4px}
.stat-item .stat-value{font-family:var(--font-num);font-size:clamp(24px,3vw,32px);font-weight:600;color:var(--brand);line-height:1.1;letter-spacing:-.02em}
.stat-item .stat-label{font-size:13.5px;color:var(--muted)}

/* ============ 指引双栏布局 ============ */
.guide-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(28px,4vw,56px);align-items:start}
.anchor-nav{
  position:sticky;top:110px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow-sm);
}
.anchor-nav h2{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.06em;margin-bottom:12px;padding-left:10px}
.anchor-nav ul{display:flex;flex-direction:column;gap:4px}
.anchor-link{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:var(--radius-sm);
  font-size:14.5px;color:var(--text-2);line-height:1.4;
}
.anchor-link:hover{background:var(--brand-soft);color:var(--brand)}
.anchor-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.anchor-link .dot{width:6px;height:6px;border-radius:50%;background:#C9D9D6;flex:none;transition:background-color .22s var(--ease),transform .22s var(--ease)}
.anchor-link.is-active .dot{background:var(--brand);transform:scale(1.3)}

.guide-content{display:flex;flex-direction:column;gap:clamp(28px,4vw,44px)}
.content-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(24px,3.4vw,40px);box-shadow:var(--shadow-sm);
  transition:box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.content-block:hover{border-color:rgba(14,122,107,.28);box-shadow:var(--shadow-lg)}
.block-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-soft);color:var(--brand);
  font-family:var(--font-num);font-size:14px;font-weight:600;margin-bottom:14px;
}
.content-block h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:12px}
.content-block p{color:var(--text-2)}
.block-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.86fr);gap:clamp(20px,3vw,36px);align-items:center;margin-top:20px}
.block-split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius)}
.point-list{display:flex;flex-direction:column;gap:14px;margin-top:6px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.point-list li .mark{
  flex:none;width:22px;height:22px;border-radius:50%;margin-top:3px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
}
.point-list li .mark svg{width:12px;height:12px}
.point-list li b{color:var(--text);font-weight:600}

/* 步骤 */
.steps{display:flex;flex-direction:column;gap:16px;margin-top:20px}
.step{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);
  background:#FBFDFC;transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{border-color:rgba(14,122,107,.3);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.step-num{
  flex:none;width:40px;height:40px;border-radius:50%;
  border:1.5px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:600;font-size:15px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:15px;color:var(--text-2)}

/* 排查卡片 */
.trouble-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}
.trouble-item{
  border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  background:#fff;transition:border-color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease);
}
.trouble-item:hover{border-color:rgba(14,122,107,.3);box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.trouble-item .t-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.trouble-item .t-head svg{width:18px;height:18px;color:var(--brand);flex:none}
.trouble-item h3{font-size:16px;font-weight:600}
.trouble-item p{font-size:14.8px;color:var(--text-2)}

/* 验证方式 */
.verify-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}
.verify-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  background:linear-gradient(180deg,#FFFFFF,#FBFDFC);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease);
}
.verify-card:hover{border-color:rgba(14,122,107,.3);box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.verify-card .tag{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--pill);padding:4px 12px;margin-bottom:12px;
}
.verify-card h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.verify-card p{font-size:14.8px;color:var(--text-2)}

/* 支持区 */
.support-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,3vw,36px);margin-top:20px}
.support-list{display:flex;flex-direction:column;gap:14px}
.support-list li{display:flex;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px dashed var(--line);font-size:15px}
.support-list li:last-child{border-bottom:none;padding-bottom:0}
.support-list li span:first-child{color:var(--muted)}
.support-list li span:last-child{color:var(--text);font-weight:600;text-align:right}

/* 表单 */
.form-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#FBFDFC}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.field input,.field textarea{
  width:100%;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;min-height:48px;font-size:15px;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A6B6B3}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);border-width:1.5px;box-shadow:0 0 0 3px rgba(14,122,107,.16)}
.field-hint{font-size:13px;color:var(--muted);margin-top:8px}
.field-error{font-size:13px;color:var(--danger);margin-top:8px;display:none}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);border-width:1.5px}
.field.has-error .field-error{display:block}
.form-note{margin-top:12px;font-size:13.5px;color:var(--success);display:none}
.form-note.is-visible{display:block}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item[open]{border-color:rgba(14,122,107,.32);box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
}
.faq-icon svg{width:13px;height:13px}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* 分类互链胶囊 */
.related-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:26px clamp(20px,3vw,32px);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
}
.related-strip .strip-label{font-size:14.5px;font-weight:600;color:var(--text);margin-right:6px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--pill);
  border:1px solid var(--line);color:var(--text-2);font-size:14.5px;background:#FBFDFC;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.chip svg{width:14px;height:14px}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0E7A6B 0%,#12A08A 55%,#5FC7B4 100%);
  border-radius:var(--radius-lg);
  padding:clamp(36px,5vw,64px);
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.22);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);color:#fff;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.86);max-width:520px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);margin-top:clamp(56px,7vw,96px);padding:clamp(48px,6vw,72px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,48px)}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:17px;font-weight:600}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* 响应式 */
@media (max-width:1024px){
  .site-header{top:12px;padding:0 14px}
  .header-inner{height:52px;padding:0 10px 0 14px}
  .brand-text{font-size:16px}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .nav-main{
    position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
    background:#fff;flex-direction:column;align-items:stretch;gap:8px;
    padding:92px 22px 24px;border-radius:20px 0 0 20px;
    box-shadow:-24px 0 60px -30px rgba(11,42,38,.4);
    transform:translateX(105%);transition:transform .3s var(--ease);z-index:90;
    overflow-y:auto;
  }
  .nav-main.is-open{transform:none}
  .nav-link{display:flex;align-items:center;min-height:48px;font-size:15px;padding:0 16px;border-radius:var(--radius-sm)}
  .hero-split{grid-template-columns:1fr;gap:32px}
  .guide-layout{grid-template-columns:1fr}
  .anchor-nav{
    position:sticky;top:74px;z-index:30;
    display:flex;flex-direction:column;gap:10px;
    padding:14px;border-radius:var(--radius);background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  }
  .anchor-nav h2{display:none}
  .anchor-nav ul{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:2px;scrollbar-width:none}
  .anchor-nav ul::-webkit-scrollbar{display:none}
  .anchor-link{flex:none;white-space:nowrap;border:1px solid var(--line);min-height:40px;padding:0 16px;border-radius:var(--pill);background:#fff}
  .anchor-link.is-active{border-color:var(--brand)}
  .block-split{grid-template-columns:1fr}
}
@media (max-width:900px){
  .stat-strip{grid-template-columns:1fr;gap:14px}
  .stat-item{padding-bottom:14px;border-bottom:1px dashed var(--line)}
  .stat-item:last-child{border-bottom:none;padding-bottom:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .support-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .trouble-grid,.verify-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .related-strip{flex-direction:column;align-items:flex-start}
}
@media (max-width:576px){
  .container{padding:0 18px}
  .site-header{padding:0 10px}
  .header-inner{padding:0 8px 0 10px}
  .brand-text{font-size:15px}
  .brand-mark{width:30px;height:30px}
  .btn{width:100%}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{padding:18px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 18px}
  .content-block{padding:22px 18px}
}

/* roulang page: article */
:root{
  --c-primary:#0E7A6B;
  --c-primary-dark:#0A5C51;
  --c-primary-soft:#E6F3F0;
  --c-accent:#E8912F;
  --c-accent-soft:#FDF1E0;
  --ink:#0E211E;
  --ink-2:#3C5350;
  --ink-3:#7A8E8B;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --line:#E2EBE9;
  --dark:#0B2A26;
  --ok:#1B9E6B;
  --warn:#D98324;
  --err:#C8453C;
  --info:#2F7FB5;
  --grad:linear-gradient(135deg,#0E7A6B,#12A08A 55%,#5FC7B4);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px -10px rgba(11,42,38,.16);
  --sh-2:0 20px 48px -20px rgba(11,42,38,.24);
  --t:240ms cubic-bezier(.2,.7,.3,1);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
svg{display:block;}
:focus-visible{outline:3px solid rgba(14,122,107,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
section{position:relative;}

/* ---------- header ---------- */
.site-header{
  position:absolute;
  top:20px;left:0;right:0;
  z-index:60;
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  position:fixed;
  top:12px;
}
.header-shell{
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 20px;
  height:60px;
  display:flex;
  align-items:center;
  gap:20px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:background var(--t),box-shadow var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled .header-shell{
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-color:var(--line);
  box-shadow:var(--sh-1);
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:600;letter-spacing:-.01em;color:var(--ink);
  min-height:44px;
}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  background:var(--grad);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 15px;
  font-size:15px;color:var(--ink-2);
  border-radius:var(--r-pill);
  transition:color var(--t),background var(--t);
  white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-primary);background:var(--c-primary-soft);font-weight:600;}
.header-cta{display:flex;align-items:center;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),filter var(--t);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -14px rgba(14,122,107,.9);}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(14,122,107,.28);}
.btn-ghost:hover{background:var(--c-primary-soft);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-primary-dark);}
.btn-light:hover{filter:brightness(.96);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--sh-1);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
  background:#fff;border-radius:20px 0 0 20px;
  box-shadow:-20px 0 60px -30px rgba(11,42,38,.4);
  padding:28px 22px;
  transform:translateX(105%);
  transition:transform var(--t);
  z-index:80;
  display:flex;flex-direction:column;gap:6px;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer a{
  display:flex;align-items:center;height:48px;padding:0 16px;
  border-radius:14px;font-size:16px;color:var(--ink-2);
}
.nav-drawer a:hover,.nav-drawer a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,42,38,.36);
  opacity:0;pointer-events:none;transition:opacity var(--t);z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- article hero ---------- */
.article-hero{
  padding:132px 0 48px;
  background:
    radial-gradient(560px 320px at 8% 0%,rgba(14,122,107,.16),transparent 70%),
    radial-gradient(420px 260px at 92% 12%,rgba(232,145,47,.12),transparent 72%),
    var(--bg);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;
  background-image:linear-gradient(180deg,rgba(14,122,107,0),rgba(14,122,107,.06));
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:26px;}
.crumbs a{color:var(--c-primary);}
.crumbs a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:4px;}
.crumbs .sep{color:#B8C7C4;}
.crumbs .now{color:var(--ink-2);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero-copy{grid-column:span 6;}
.hero-cover{grid-column:span 6;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:var(--c-accent-soft);color:#9A5C11;
}
.badge-soft{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.article-hero h1{
  font-size:clamp(28px,4.4vw,50px);
  line-height:1.18;
  letter-spacing:-.01em;
  font-weight:700;
  margin:16px 0 18px;
  overflow-wrap:anywhere;
}
.hero-sub{
  font-size:17px;color:var(--ink-2);
  max-width:56ch;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  margin-top:22px;font-size:14px;color:var(--ink-3);
}
.meta-row .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-top:9px;flex:0 0 auto;}
.meta-item{display:flex;align-items:center;gap:8px;}
.figure-cover{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:#fff;aspect-ratio:16/10;}
.figure-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- article layout ---------- */
.article-main{padding:0 0 96px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;
  align-items:start;
}
.paper{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:44px 46px;
  box-shadow:var(--sh-1);
}
.article-body{font-size:17px;line-height:1.85;color:var(--ink-2);}
.article-body>*+*{margin-top:18px;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.3;font-weight:700;color:var(--ink);
  margin-top:40px;padding-left:14px;
  border-left:4px solid var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);margin-top:28px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);}
.article-body p{color:var(--ink-2);}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--c-primary-dark);}
.article-body ul,.article-body ol{padding-left:0;display:grid;gap:10px;}
.article-body li{position:relative;padding-left:22px;color:var(--ink-2);}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--c-primary-soft);box-shadow:inset 0 0 0 2px var(--c-primary);}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li);
  position:absolute;left:0;top:3px;
  width:22px;height:22px;border-radius:50%;
  border:1px solid var(--c-primary);color:var(--c-primary);
  font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);
  border-radius:0 14px 14px 0;
  color:var(--ink-2);font-size:16px;
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin-top:20px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:600;}
.article-body img{border-radius:var(--r-md);margin:24px auto;}
.article-body code{background:#F1F5F4;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--c-primary-dark);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;}

/* empty state */
.empty-state{
  text-align:center;padding:56px 24px;
  background:var(--bg);border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-art{
  width:96px;height:96px;margin:0 auto 18px;border-radius:26px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.empty-art svg{width:44px;height:44px;}
.empty-title{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.empty-desc{max-width:48ch;margin:0 auto 22px;color:var(--ink-3);font-size:15px;}

/* sidebar */
.side{display:grid;gap:24px;position:sticky;top:96px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h2{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.toc{display:grid;gap:4px;}
.toc a{
  display:flex;align-items:center;gap:10px;
  min-height:40px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--ink-2);
  transition:background var(--t),color var(--t);
}
.toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--line);flex:0 0 auto;transition:background var(--t);}
.toc a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.toc a:hover::before{background:var(--c-primary);}
.side-cta{
  background:var(--grad);color:#fff;border:none;
  border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-2);
}
.side-cta h2{font-size:17px;font-weight:600;margin-bottom:10px;color:#fff;}
.side-cta p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.85);margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-note{font-size:13px;color:rgba(255,255,255,.7);margin-top:12px;}

/* footer block of article */
.article-foot{border-top:1px solid var(--line);margin-top:36px;padding-top:28px;display:grid;gap:24px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-label{font-size:13px;color:var(--ink-3);}
.tag{
  display:inline-flex;align-items:center;min-height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--bg);border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);transition:border-color var(--t),color var(--t),background var(--t);
}
.tag:hover{border-color:rgba(14,122,107,.4);color:var(--c-primary);background:var(--c-primary-soft);}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.pn-item{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--bg);transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.pn-item:hover{transform:translateY(-3px);box-shadow:var(--sh-1);border-color:rgba(14,122,107,.3);}
.pn-label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:6px;}
.pn-title{display:block;font-size:16px;font-weight:600;color:var(--ink);}
.pn-item:hover .pn-title{color:var(--c-primary);}
.back-cat{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary);}
.back-cat:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:4px;}

/* ---------- generic sections ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;color:var(--ink);}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}

/* cards grid */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,122,107,.28);}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px;display:grid;gap:12px;flex:1;}
.card-body h3{
  font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card:hover .card-body h3{color:var(--c-primary);}
.card-body p{
  font-size:15px;color:var(--ink-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:14px;margin-top:auto;
  font-size:13px;color:var(--ink-3);
}
.card-meta .arrow{color:var(--c-primary);font-weight:600;}

/* faq */
.faq-list{max-width:800px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:rgba(14,122,107,.35);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:16px;height:16px;
  background:
    linear-gradient(var(--c-primary),var(--c-primary)) center/16px 2px no-repeat,
    linear-gradient(var(--c-primary),var(--c-primary)) center/2px 16px no-repeat;
  transition:transform var(--t);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* cta band */
.cta-band{padding:88px 0;}
.cta-inner{
  background:var(--dark);
  background-image:linear-gradient(135deg,rgba(14,122,107,.85),rgba(18,160,138,.7) 55%,rgba(95,199,180,.5));
  border-radius:24px;
  padding:56px 48px;
  color:#fff;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  box-shadow:var(--sh-2);
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.86);font-size:16px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:26px;}
.cta-stats div{min-width:110px;}
.cta-stats b{display:block;font-size:28px;font-weight:600;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums;}
.cta-stats span{font-size:13px;color:rgba(255,255,255,.75);}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:600;margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;max-width:36ch;color:rgba(255,255,255,.7);}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--t);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-contact{display:grid;gap:10px;font-size:14px;}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.site-footer .brand-mark{background:var(--grad);color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 22px;}
  .paper{padding:38px 34px;}
}
@media (max-width:1023px){
  .nav-main,.header-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-shell{height:56px;padding:0 16px;}
  .article-hero{padding:112px 0 40px;}
  .hero-copy,.hero-cover{grid-column:span 12;}
  .hero-cover{order:2;}
  .article-layout{grid-template-columns:1fr;gap:28px;}
  .side{position:static;grid-template-columns:1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;padding:44px 34px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .paper{padding:28px 20px;border-radius:var(--r-md);}
  .article-body h2{margin-top:32px;}
  .pn-grid{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .side{grid-template-columns:1fr;}
  .cta-inner{padding:36px 22px;border-radius:20px;}
  .cta-stats{gap:20px;}
  .faq-item summary{padding:18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px;}
}
@media (max-width:575px){
  .container{padding:0 18px;}
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;}
  .article-hero{padding:104px 0 32px;}
  .meta-row{gap:8px 14px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#0E7A6B;
  --brand-dark:#0A5C51;
  --brand-soft:#E6F3F0;
  --accent:#E8912F;
  --accent-soft:#FDF1E0;
  --text:#0E211E;
  --text-2:#3C5350;
  --text-3:#7A8E8B;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --line:#E2EBE9;
  --deep:#0B2A26;
  --success:#1B9E6B;
  --warn:#D98324;
  --error:#C8453C;
  --info:#2F7FB5;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px -10px rgba(11,42,38,.16);
  --sh-2:0 20px 48px -20px rgba(11,42,38,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --narrow:860px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:3px solid rgba(14,122,107,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{width:100%;max-width:var(--narrow);margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:20px;
  left:0;
  right:0;
  z-index:90;
  pointer-events:none;
}
.nav-shell{
  pointer-events:auto;
  width:calc(100% - 40px);
  max-width:1200px;
  margin:0 auto;
  height:60px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  background:transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.nav-shell.is-scrolled{
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-color:var(--line);
  box-shadow:var(--sh-1);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,#0E7A6B,#12A08A);
  color:#fff;
  flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:17.5px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.nav-main{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:14.5px;
  color:var(--text-2);
  padding:8px 2px;
  white-space:nowrap;
  text-decoration:none;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:-12px;right:-12px;
  bottom:-2px;
  height:30px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  opacity:0;
  z-index:-1;
  transition:opacity .22s var(--ease);
}
.nav-link:hover{color:var(--brand);text-decoration:none}
.nav-link:hover::after{opacity:1}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{opacity:1}
.nav-cta{
  flex:0 0 auto;
  height:40px;
  display:inline-flex;
  align-items:center;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-size:14.5px;
  font-weight:600;
  text-decoration:none;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:0 6px 18px -10px rgba(14,122,107,.9);
}
.nav-cta:hover{background:var(--brand-dark);color:#fff;text-decoration:none;transform:translateY(-1px)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  align-items:center;
  justify-content:center;
  color:var(--text);
  background:rgba(255,255,255,.7);
  border:1px solid var(--line);
}
.nav-toggle svg{width:20px;height:20px}

/* 移动抽屉 */
.drawer-overlay{
  position:fixed;inset:0;
  background:rgba(11,42,38,.42);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:95;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;
  width:320px;
  max-width:86vw;
  height:100%;
  background:#fff;
  border-radius:20px 0 0 20px;
  box-shadow:var(--sh-2);
  padding:24px 20px;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  z-index:96;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:14px;
  border:1px solid var(--line);
  color:var(--text-2);
}
.drawer-close svg{width:18px;height:18px}
.drawer nav{display:grid;gap:6px}
.drawer .nav-link{
  min-height:48px;
  display:flex;
  align-items:center;
  padding:0 16px;
  border-radius:14px;
  font-size:15.5px;
  color:var(--text-2);
}
.drawer .nav-link::after{display:none}
.drawer .nav-link:hover,.drawer .nav-link.is-active{background:var(--brand-soft);color:var(--brand)}
.drawer .drawer-cta{
  margin-top:18px;
  height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-weight:600;
}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  background:
    radial-gradient(720px 380px at 14% 0%,rgba(14,122,107,.12),transparent 62%),
    linear-gradient(180deg,#F2F8F6 0%,var(--bg) 100%);
  overflow:hidden;
}
.page-hero .cloud-arc{
  position:absolute;
  right:-90px;
  bottom:-120px;
  width:520px;
  height:340px;
  color:rgba(14,122,107,.12);
  pointer-events:none;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--brand)}
.breadcrumb span{color:var(--text-3)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.page-hero h1{
  margin:18px 0 18px;
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.18;
  letter-spacing:-.01em;
}
.lede{
  max-width:720px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.fact{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-2);
}
.fact b{color:var(--brand);font-weight:600}
.fact svg{width:15px;height:15px;color:var(--brand);flex:0 0 auto}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section-head{max-width:var(--narrow);margin:0 auto 40px;padding:0 24px}
.section-head h2{font-size:clamp(24px,3vw,34px);letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--accent);
  margin-bottom:12px;
}
.figure-block{
  max-width:var(--narrow);
  margin:0 auto 48px;
  padding:0 24px;
}
.figure-block img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.figure-block figcaption{
  margin-top:12px;
  font-size:13.5px;
  color:var(--text-3);
  text-align:center;
}

/* ---------- 编号条目列表（本页主版式） ---------- */
.num-list{
  max-width:var(--narrow);
  margin:0 auto;
  padding:0 24px;
  display:grid;
  gap:22px;
}
.num-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 28px 26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.num-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(14,122,107,.32);
}
.num-badge{
  width:56px;height:56px;
  border-radius:50%;
  border:2px solid var(--brand);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:21px;
  font-weight:600;
  font-family:Inter,system-ui,-apple-system,sans-serif;
  background:#fff;
}
.num-body h3{
  font-size:20px;
  margin-bottom:10px;
  letter-spacing:-.01em;
}
.num-body p{color:var(--text-2);font-size:15.5px}
.point-list{
  margin-top:16px;
  display:grid;
  gap:9px;
}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-2);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  padding:5px 13px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:12.5px;
  font-weight:600;
}
.tag--accent{background:var(--accent-soft);color:#9A5C14}

/* ---------- 提示条 ---------- */
.notice{
  max-width:var(--narrow);
  margin:44px auto 0;
  padding:0 24px;
}
.notice-inner{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:22px 24px;
  border-radius:var(--r-md);
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  box-shadow:var(--sh-1);
}
.notice-inner svg{width:22px;height:22px;color:var(--accent);flex:0 0 auto;margin-top:4px}
.notice-inner h3{font-size:16px;margin-bottom:6px}
.notice-inner p{font-size:14.5px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq{
  max-width:800px;
  margin:0 auto;
  padding:0 24px;
  display:grid;
  gap:14px;
}
.faq details{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq details[open]{border-color:rgba(14,122,107,.32);box-shadow:var(--sh-1)}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  min-height:44px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::marker{content:""}
.faq .plus{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  display:grid;
  place-items:center;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq .plus svg{width:14px;height:14px}
.faq details[open] .plus{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq .answer{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ---------- 相关分类胶囊 ---------- */
.topic-wrap{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:#fff;
}
.topic-chips{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  padding:36px 24px;
}
.topic-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:10px 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--text-2);
  font-size:15px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.topic-chip:hover{
  border-color:var(--brand);
  color:var(--brand);
  background:#fff;
  text-decoration:none;
  transform:translateY(-2px);
}
.topic-chip.is-current{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  font-weight:600;
}
.topic-chip.is-current:hover{color:#fff;transform:none}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  padding:80px 0;
  background:linear-gradient(135deg,#0E7A6B,#12A08A 55%,#5FC7B4);
  overflow:hidden;
  color:#fff;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:auto -60px -140px auto;
  width:420px;height:320px;
  border:1.5px solid rgba(255,255,255,.2);
  border-radius:50% 50% 50% 50%/60% 60% 40% 40%;
  pointer-events:none;
}
.cta-inner{
  max-width:var(--narrow);
  margin:0 auto;
  padding:0 24px;
  text-align:center;
  position:relative;
  z-index:1;
}
.cta-inner h2{
  font-size:clamp(24px,3vw,34px);
  letter-spacing:-.01em;
}
.cta-inner p{
  margin:16px auto 0;
  max-width:600px;
  color:rgba(255,255,255,.88);
  font-size:16px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:14px;
  margin-top:30px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15.5px;
  font-weight:600;
  text-decoration:none;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-solid{background:var(--brand);color:#fff;box-shadow:0 10px 26px -14px rgba(11,42,38,.9)}
.btn-solid:hover{background:var(--brand-dark);color:#fff}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#F1FAF8;color:var(--brand-dark)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.btn-outline{border:1.5px solid var(--brand);color:var(--brand);background:#fff}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.72);
  padding:68px 0 0;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-col h3{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  background:linear-gradient(135deg,#12A08A,#5FC7B4);
}
.footer-desc{line-height:1.8;color:rgba(255,255,255,.66)}
.footer-links{display:grid;gap:11px}
.footer-links a{
  color:rgba(255,255,255,.72);
  text-decoration:none;
}
.footer-links a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-contact{display:grid;gap:11px}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-main,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-shell{height:56px;padding:0 10px 0 16px}
  .site-header{top:14px}
  .page-hero{padding:130px 0 60px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container,.narrow,.num-list,.faq,.section-head,.figure-block,.notice{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .page-hero{padding:118px 0 48px}
  .num-item{
    grid-template-columns:1fr;
    gap:14px;
    padding:24px 22px;
  }
  .num-badge{width:48px;height:48px;font-size:19px}
  .cta-band{padding:62px 0}
  .site-footer{padding-top:54px}
}
@media (max-width:520px){
  .brand-text{font-size:16px}
  .page-hero h1{font-size:26px}
  .lede{font-size:15.5px}
  .hero-facts{gap:8px}
  .fact{font-size:12.5px;padding:7px 13px}
  .topic-chips{justify-content:flex-start}
  .topic-chip{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --primary:#0E7A6B;
  --primary-dark:#0A5C51;
  --primary-soft:#E6F3F0;
  --accent:#E8912F;
  --accent-soft:#FDF1E0;
  --ink:#0E211E;
  --ink-2:#3C5350;
  --ink-3:#7A8E8B;
  --bg:#F6F9F8;
  --card:#FFFFFF;
  --line:#E2EBE9;
  --dark:#0B2A26;
  --ok:#1B9E6B;
  --warn:#D98324;
  --err:#C8453C;
  --info:#2F7FB5;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --pill:999px;
  --shadow:0 8px 24px -10px rgba(11,42,38,.16);
  --shadow-hover:0 20px 48px -20px rgba(11,42,38,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
svg{display:block;}
:focus-visible{outline:3px solid rgba(14,122,107,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary-dark);
  background:var(--primary-soft);border-radius:var(--pill);
  padding:6px 14px;letter-spacing:.02em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);}
.num{font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:20px;left:0;right:0;z-index:100;}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:60px;padding:0 12px 0 20px;border-radius:var(--pill);
  border:1px solid transparent;background:transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-color:var(--line);
  box-shadow:var(--shadow);
}
.nav-logo{display:inline-flex;align-items:center;gap:10px;font-size:17.5px;font-weight:600;color:var(--ink);white-space:nowrap;}
.nav-logo:hover{color:var(--ink);text-decoration:none;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,#0E7A6B,#12A08A 55%,#5FC7B4);
  box-shadow:0 8px 18px -10px rgba(14,122,107,.75);
}
.brand-mark svg{width:20px;height:20px;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;
  border-radius:var(--pill);font-size:14.5px;color:var(--ink-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-soft);text-decoration:none;}
.nav-link.is-active{color:var(--primary-dark);background:var(--primary-soft);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -12px rgba(14,122,107,.85);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;filter:brightness(.96);}
.btn-ghost{background:transparent;color:var(--primary-dark);border:1.5px solid rgba(14,122,107,.35);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);}
.btn-on-dark{background:#fff;color:var(--primary-dark);}
.btn-on-dark:hover{background:#EAF6F3;color:var(--primary-dark);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14.5px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--pill);
  align-items:center;justify-content:center;color:var(--ink-2);
  border:1px solid var(--line);background:rgba(255,255,255,.7);
}
.nav-toggle svg{width:20px;height:20px;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;z-index:140;
  background:#fff;border-radius:20px 0 0 20px;padding:26px 20px;
  box-shadow:-24px 0 60px -30px rgba(11,42,38,.45);
  transform:translateX(105%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;gap:8px;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.nav-drawer .nav-link{height:48px;width:100%;padding:0 16px;border-radius:14px;font-size:15.5px;}
.drawer-close{width:44px;height:44px;border-radius:var(--pill);display:grid;place-items:center;color:var(--ink-2);background:var(--bg);}
.drawer-mask{position:fixed;inset:0;background:rgba(11,42,38,.42);z-index:130;opacity:0;pointer-events:none;transition:opacity .26s var(--ease);}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:150px 0 72px;
  background:
    radial-gradient(circle at 8% 6%, rgba(14,122,107,.12), transparent 42%),
    var(--bg);
}
.hero::after{
  content:"";position:absolute;right:-60px;bottom:-40px;width:420px;height:220px;
  border:1.5px solid rgba(14,122,107,.12);border-radius:50%;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.hero-copy h1{
  margin-top:18px;
  font-size:clamp(28px,4.4vw,52px);line-height:1.18;font-weight:700;letter-spacing:-.01em;
}
.hero-lead{margin-top:20px;max-width:520px;font-size:17px;color:var(--ink-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--pill);background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);box-shadow:var(--shadow);
}
.trust-chip .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--shadow-hover);
}
.hero-badge{
  position:absolute;left:-16px;bottom:28px;
  background:#fff;border-radius:var(--r-md);border:1px solid var(--line);
  box-shadow:var(--shadow);padding:14px 18px;min-width:180px;
}
.hero-badge b{display:block;font-family:Inter,system-ui,sans-serif;font-size:28px;line-height:1.1;color:var(--accent);}
.hero-badge span{font-size:13px;color:var(--ink-3);}

/* ---------- 导语 ---------- */
.intro-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.intro-inner{display:grid;grid-template-columns:220px 1fr;gap:40px;padding:46px 0;align-items:start;}
.intro-inner h2{font-size:20px;font-weight:700;}
.intro-inner p{font-size:16.5px;color:var(--ink-2);max-width:860px;}
.intro-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--pill);
  background:var(--primary-soft);color:var(--primary-dark);font-size:13px;font-weight:600;
}
.tag.accent{background:var(--accent-soft);color:#9A5C12;}

/* ---------- 错位双列 ---------- */
.stagger-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);align-items:start;}
.stagger-col{display:flex;flex-direction:column;gap:var(--gap);}
.stagger-col.is-offset{margin-top:40px;}
.device-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(14,122,107,.3);}
.device-card h3{font-size:20px;font-weight:600;line-height:1.4;}
.device-card p{margin-top:12px;color:var(--ink-2);font-size:15.5px;}
.device-card .card-icon{
  width:48px;height:48px;border-radius:14px;background:var(--primary-soft);color:var(--primary-dark);
  display:grid;place-items:center;margin-bottom:18px;
}
.device-card .card-icon svg{width:24px;height:24px;}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.point-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);}
.point-list li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.card-figure{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);}
.card-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease);}
.card-figure:hover img{transform:scale(1.03);}
.card-figure figcaption{padding:16px 20px;font-size:14px;color:var(--ink-3);border-top:1px solid var(--line);}

/* ---------- 时间轴 ---------- */
.timeline-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(14,122,107,.18));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-34px;top:2px;width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);display:grid;place-items:center;
  font-family:Inter,system-ui,sans-serif;font-size:11px;font-weight:600;color:var(--primary-dark);
}
.tl-item h3{font-size:17px;font-weight:600;}
.tl-item p{margin-top:6px;font-size:15px;color:var(--ink-2);}
.side-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);
}
.side-panel h3{font-size:18px;font-weight:600;}
.side-panel > p{margin-top:10px;font-size:15px;color:var(--ink-2);}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px;}
.metric{background:var(--bg);border-radius:var(--r-sm);padding:16px;}
.metric b{display:block;font-family:Inter,system-ui,sans-serif;font-size:26px;font-weight:600;color:var(--primary-dark);line-height:1.2;}
.metric span{font-size:12.5px;color:var(--ink-3);}
.divider{height:1px;background:var(--line);margin:22px 0;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);}
.check-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:5px;color:var(--ok);}

/* ---------- 场景带 ---------- */
.band-dark{
  background:linear-gradient(135deg,#0E7A6B,#12A08A 55%,#5FC7B4);
  color:#fff;border-radius:var(--r-lg);padding:44px;
  position:relative;overflow:hidden;
}
.band-dark h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:#fff;}
.band-dark p{margin-top:12px;max-width:640px;color:rgba(255,255,255,.86);font-size:15.5px;}
.band-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;}
.band-item{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);border-radius:var(--r-md);padding:20px;}
.band-item h3{font-size:16.5px;font-weight:600;color:#fff;}
.band-item p{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.82);}

/* ---------- FAQ ---------- */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 24px;box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary-dark);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;margin-top:3px;transition:transform .22s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;}
.faq-icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq-icon::after{top:2px;bottom:2px;left:9px;width:2px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--primary-dark);}
.faq-answer{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- 互链胶囊 ---------- */
.link-pills{display:flex;flex-wrap:wrap;gap:14px;}
.link-pill{
  display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 22px;
  border-radius:var(--pill);background:#fff;border:1px solid var(--line);
  color:var(--ink);font-size:15px;font-weight:600;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.link-pill:hover{transform:translateY(-2px);border-color:rgba(14,122,107,.4);color:var(--primary-dark);text-decoration:none;box-shadow:var(--shadow-hover);}
.link-pill svg{width:18px;height:18px;color:var(--primary);}
.link-pill.is-current{background:var(--primary-soft);border-color:rgba(14,122,107,.28);color:var(--primary-dark);}

/* ---------- CTA ---------- */
.cta-section{padding:56px 0 72px;}
.cta-box{
  background:linear-gradient(135deg,#0E7A6B,#12A08A 55%,#5FC7B4);
  border-radius:var(--r-lg);padding:56px 48px;color:#fff;position:relative;overflow:hidden;
  box-shadow:var(--shadow-hover);
}
.cta-box::after{
  content:"";position:absolute;right:-80px;top:-60px;width:360px;height:360px;
  border:1.5px solid rgba(255,255,255,.24);border-radius:50%;
}
.cta-box h2{font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:700;position:relative;}
.cta-box p{margin-top:16px;max-width:620px;color:rgba(255,255,255,.9);font-size:16px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;position:relative;}
.cta-note{margin-top:20px;font-size:13.5px;color:rgba(255,255,255,.78);position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17.5px;font-weight:600;margin-bottom:16px;}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px;}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:40px;}
}
@media (max-width:1024px){
  .nav-main{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:130px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure{order:2;}
  .hero-lead{max-width:none;}
  .intro-inner{grid-template-columns:1fr;gap:20px;padding:40px 0;}
  .timeline-wrap{grid-template-columns:1fr;gap:36px;}
  .band-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .stagger-grid{grid-template-columns:1fr;}
  .stagger-col.is-offset{margin-top:0;}
  .band-dark{padding:32px 24px;}
  .band-grid{grid-template-columns:1fr;}
  .cta-box{padding:40px 24px;}
  .metric-row{grid-template-columns:1fr 1fr;}
  .hero-badge{left:12px;bottom:12px;}
  .faq-item{padding:18px 18px;}
  .site-footer{padding:52px 0 24px;}
}
@media (max-width:575px){
  .hero{padding:116px 0 52px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .metric-row{grid-template-columns:1fr;}
  .link-pill{width:100%;justify-content:flex-start;}
}