/* roulang page: index */
:root{
  --c-ink:#0B1F1C;
  --c-primary:#14554B;
  --c-primary-deep:#0E3E37;
  --c-accent:#C6F24E;
  --c-warm:#E2703A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E2E1D8;
  --c-muted:#6B7A74;
  --c-ink-soft:#3C4A46;
  --r-xl:24px;
  --r-lg:18px;
  --r-sm:12px;
  --shadow-s:0 1px 2px rgba(11,31,28,.04),0 1px 3px rgba(11,31,28,.06);
  --shadow-m:0 8px 24px -12px rgba(11,31,28,.18);
  --shadow-l:0 24px 60px -28px rgba(11,31,28,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ol,ul{margin:0;padding:0;list-style:none}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sec{padding:104px 0}
.sec-tight{padding:72px 0}

.t-h1{font-size:40px;line-height:1.2;font-weight:600;letter-spacing:-.01em;margin:0}
.t-h2{font-size:30px;line-height:1.25;font-weight:600;letter-spacing:-.01em;margin:0}
.t-h3{font-size:20px;line-height:1.4;font-weight:600;margin:0}
.t-h4{font-size:17px;line-height:1.45;font-weight:600;margin:0}
.t-muted{color:var(--c-muted);font-size:15px;line-height:1.75;margin:0}
.t-small{font-size:13px;line-height:1.5;color:var(--c-muted)}

.eyebrow{display:inline-block;font-size:13px;line-height:1.5;font-weight:600;color:var(--c-primary);letter-spacing:.02em}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;line-height:1.5;font-weight:600;
  background:rgba(20,85,75,.08);color:var(--c-primary);
}
.pill-accent{background:var(--c-accent);color:var(--c-primary-deep)}
.pill-warm{background:rgba(226,112,58,.12);color:var(--c-warm)}
.pill-line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-soft)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--header-h);display:flex;align-items:center;
  background:rgba(247,246,241,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid rgba(11,31,28,.08);
  box-shadow:var(--shadow-s);
  transition:background 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.site-header.is-stuck{background:var(--c-bg);box-shadow:var(--shadow-m);border-bottom-color:var(--c-line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:28px;height:28px;border-radius:9px;background:var(--c-primary);
  position:relative;flex:0 0 auto;overflow:hidden;
}
.logo-mark::before{
  content:"";position:absolute;left:6px;right:6px;top:9px;bottom:9px;
  background:var(--c-accent);border-radius:2px;transform:skewX(-14deg);
}
.logo-text{font-size:18px;font-weight:600;color:var(--c-primary);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;color:var(--c-ink-soft);
  transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform 220ms var(--ease);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.nav-toggle:hover{background:rgba(20,85,75,.06);border-color:rgba(20,85,75,.28)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),
             background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),filter 200ms var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-primary-deep);box-shadow:var(--shadow-s)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-m);filter:brightness(1.03)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:rgba(20,85,75,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:rgba(20,85,75,.14)}
.btn-dark{background:var(--c-primary);color:#fff}
.btn-dark:hover{transform:translateY(-1px);box-shadow:var(--shadow-m);filter:brightness(1.06)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow .arw{transition:transform 220ms var(--ease)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,31,28,.4);z-index:70;
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:88vw;z-index:80;
  background:var(--c-surface);border-left:1px solid var(--c-line);
  box-shadow:var(--shadow-l);
  transform:translateX(100%);transition:transform 240ms var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:20px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  font-size:20px;line-height:1;color:var(--c-muted);
  display:flex;align-items:center;justify-content:center;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.drawer-close:hover{background:rgba(20,85,75,.06);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:12px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--c-ink-soft);
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.drawer-nav a:hover{background:rgba(20,85,75,.06);color:var(--c-primary)}
.drawer-nav a.active{background:rgba(198,242,78,.28);color:var(--c-primary-deep);font-weight:600}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:calc(var(--header-h) + 76px) 0 96px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 12% 8%, rgba(20,85,75,.05), transparent 68%),
    radial-gradient(560px 380px at 92% 84%, rgba(226,112,58,.045), transparent 70%);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(11,31,28,.10) 1px, transparent 1px);
  background-size:22px 22px;opacity:.28;
}
.hero-inner{position:relative;display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start;gap:22px}
.hero-title{font-size:40px;line-height:1.2;font-weight:600;letter-spacing:-.01em;margin:0;max-width:14em}
.hero-sub{font-size:17px;line-height:1.75;color:var(--c-muted);max-width:32em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;padding-top:4px}
.hero-media{position:relative}
.media-frame{
  border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-line);
  box-shadow:var(--shadow-m);background:var(--c-surface);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 400ms var(--ease)}
.media-frame:hover img{transform:scale(1.04)}
.float-card{
  position:absolute;left:-26px;bottom:-26px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-l);padding:16px 20px;min-width:196px;
}
.float-card .fc-num{font-size:24px;font-weight:600;color:var(--c-primary);line-height:1.2}
.float-card .fc-txt{font-size:12px;line-height:1.5;color:var(--c-muted);margin-top:4px}

/* ---------- stat row ---------- */
.stat-row{
  display:flex;flex-wrap:wrap;gap:0;margin-top:12px;
  border-top:1px solid var(--c-line);padding-top:22px;width:100%;
}
.stat-item{
  flex:1 1 0;min-width:112px;padding-right:20px;
  border-right:1px solid var(--c-line);
}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-num{font-size:24px;font-weight:600;line-height:1.2;color:var(--c-ink);display:block}
.stat-lbl{font-size:12px;line-height:1.5;color:var(--c-muted);margin-top:6px;display:block}

/* ---------- band ---------- */
.band-inner{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.band-lead{display:flex;flex-direction:column;gap:14px}
.band-list{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.band-item{padding:4px 26px;border-left:1px solid var(--c-line)}
.band-item:first-child{padding-left:0;border-left:0}
.num-badge{
  display:inline-block;font-size:14px;font-weight:600;color:var(--c-warm);
  letter-spacing:.06em;margin-bottom:10px;
}
.band-item p{font-size:15px;line-height:1.75;color:var(--c-ink-soft)}

/* ---------- section head ---------- */
.sec-head{display:flex;flex-direction:column;gap:14px;max-width:640px;margin-bottom:40px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head-row .sec-head{margin-bottom:0}

/* ---------- feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-s);padding:26px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
  display:flex;flex-direction:column;gap:14px;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(20,85,75,.28)}
.card-main{grid-column:span 2}
.icon-box{
  width:40px;height:40px;border-radius:12px;background:rgba(198,242,78,.45);
  color:var(--c-primary-deep);display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;
}
.icon-box.alt{background:rgba(20,85,75,.08);color:var(--c-primary)}
.card p{font-size:14px;line-height:1.75;color:var(--c-muted)}
.point-list{display:flex;flex-direction:column;gap:8px;margin-top:auto}
.point-list li{
  position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:var(--c-ink-soft);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;
  background:var(--c-accent);box-shadow:0 0 0 1px rgba(20,85,75,.18);
}

/* ---------- scenes ---------- */
.scene{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;padding:44px 0}
.scene + .scene{border-top:1px solid var(--c-line)}
.scene.reverse .scene-media{order:2}
.scene-media{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-m)}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 400ms var(--ease)}
.scene-media:hover img{transform:scale(1.04)}
.scene-body{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.scene-body p{font-size:15px;line-height:1.8;color:var(--c-muted)}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{overflow:hidden;padding:0}
.case-thumb{position:relative;overflow:hidden}
.case-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 400ms var(--ease)}
.case-card:hover .case-thumb img{transform:scale(1.04)}
.case-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px}
.case-data{display:flex;align-items:baseline;gap:8px;margin-top:auto;padding-top:6px}
.case-data .d-num{font-size:28px;font-weight:600;line-height:1.1;color:var(--c-primary)}
.case-data .d-unit{font-size:12px;line-height:1.5;color:var(--c-muted)}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;padding-top:18px}
.price-card{position:relative;padding-top:30px}
.price-card.featured{
  transform:translateY(-8px);
  border-color:rgba(20,85,75,.3);
  box-shadow:var(--shadow-m);
}
.price-card.featured:hover{transform:translateY(-12px);box-shadow:var(--shadow-l)}
.price-card.featured::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:4px;border-radius:0 0 4px 4px;background:var(--c-accent);
}
.corner-tag{
  position:absolute;top:-12px;right:20px;
  background:var(--c-warm);color:#fff;font-size:12px;line-height:1;
  padding:6px 12px;border-radius:999px;box-shadow:var(--shadow-s);
}
.price-name{font-size:17px;font-weight:600;margin:0}
.price-amount{display:flex;align-items:baseline;gap:6px;margin:6px 0 0}
.price-amount .num{font-size:32px;font-weight:600;line-height:1.1;color:var(--c-ink)}
.price-amount .unit{font-size:13px;color:var(--c-muted)}
.price-desc{font-size:14px;line-height:1.7;color:var(--c-muted);margin-top:8px}
.price-feats{display:flex;flex-direction:column;gap:10px;margin:18px 0;padding-top:18px;border-top:1px solid var(--c-line)}
.price-feats li{position:relative;padding-left:24px;font-size:14px;line-height:1.7;color:var(--c-ink-soft)}
.price-feats li::before{
  content:"";position:absolute;left:0;top:5px;width:14px;height:14px;border-radius:4px;
  background:rgba(198,242,78,.55);
}
.price-feats li::after{
  content:"";position:absolute;left:4px;top:9px;width:6px;height:3px;
  border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{padding:0;overflow:hidden}
.news-thumb{overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 400ms var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.news-title{
  font-size:17px;line-height:1.45;font-weight:600;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14px;line-height:1.7;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:2px}
.empty-state{
  grid-column:1 / -1;
  border:1.5px dashed var(--c-line);border-radius:20px;min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:32px;
}
.empty-state .es-icon{
  width:44px;height:44px;border-radius:12px;background:rgba(20,85,75,.08);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:18px;
}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;line-height:1.5;cursor:pointer;
  transition:color 200ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;line-height:1;color:var(--c-primary);
  transition:transform 220ms var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-a{
  padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--c-muted);max-width:760px;
}

/* ---------- cta ---------- */
.cta-box{
  position:relative;overflow:hidden;
  background:var(--c-primary-deep);border-radius:var(--r-xl);
  padding:52px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-l);
}
.cta-box::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:20px 20px;opacity:.35;pointer-events:none;
}
.cta-text{position:relative;display:flex;flex-direction:column;gap:10px;max-width:640px}
.cta-text h2{font-size:26px;line-height:1.3;font-weight:600;margin:0;color:#fff}
.cta-text p{margin:0;font-size:15px;line-height:1.75;color:rgba(255,255,255,.72)}
.cta-actions{position:relative;display:flex;gap:12px;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.72);margin-top:104px}
.footer-top{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:40px;padding:72px 0 48px}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-logo{display:inline-flex;align-items:center;gap:10px}
.footer-logo .logo-mark{background:rgba(255,255,255,.14)}
.footer-logo .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:30em}
.footer-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.9);margin:0 0 16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.65);transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--c-accent)}
.footer-col li{font-size:14px;color:rgba(255,255,255,.65)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.55);margin:0}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom nav a{font-size:13px;color:rgba(255,255,255,.55);transition:color 200ms var(--ease)}
.footer-bottom nav a:hover{color:var(--c-accent)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 28px}
  .sec{padding:76px 0}
  .hero{padding:calc(var(--header-h) + 56px) 0 76px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-title{font-size:34px}
  .band-inner{grid-template-columns:1fr;gap:36px}
  .band-list{grid-template-columns:1fr}
  .band-item{padding:18px 0;border-left:0;border-top:1px solid var(--c-line)}
  .band-item:first-child{padding-top:0;border-top:0}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .card-main{grid-column:span 2}
  .scene{grid-template-columns:1fr;gap:32px;padding:36px 0}
  .scene.reverse .scene-media{order:0}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:repeat(2,1fr);gap:32px;padding:56px 0 36px}
  .cta-box{flex-direction:column;align-items:flex-start;padding:40px 36px}
}
@media (max-width:768px){
  :root{--header-h:64px}
  .main-nav{display:none}
  .header-actions .link-arrow{display:none}
  .nav-toggle{display:flex}
  .hero-title{font-size:30px;line-height:1.25}
  .t-h2{font-size:24px;line-height:1.3}
  .float-card{left:12px;bottom:-20px;padding:14px 16px;min-width:170px}
  .stat-item{flex:1 1 44%;padding:0 0 16px;border-right:0;border-bottom:1px solid var(--c-line)}
  .stat-item:nth-child(odd){padding-right:16px;border-right:1px solid var(--c-line)}
  .sec-head-row{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .sec{padding:56px 0}
  .hero{padding:calc(var(--header-h) + 40px) 0 56px}
  .feature-grid{grid-template-columns:1fr}
  .card-main{grid-column:span 1}
  .case-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .hero-cta{width:100%}
  .hero-cta .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .cta-box{padding:32px 22px}
  .cta-text h2{font-size:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --c-ink:#0B1F1C;
  --c-primary:#14554B;
  --c-primary-deep:#0E3E37;
  --c-accent:#C6F24E;
  --c-warm:#E2703A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E2E1D8;
  --c-muted:#6B7A74;
  --c-ink-soft:#3C4A46;
  --r-lg:24px;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --shadow-s:0 1px 2px rgba(11,31,28,.04), 0 1px 3px rgba(11,31,28,.06);
  --shadow-m:0 8px 24px -12px rgba(11,31,28,.18);
  --shadow-l:0 24px 60px -28px rgba(11,31,28,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-soft);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  background:rgba(247,246,241,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid rgba(11,31,28,.08);
  box-shadow:var(--shadow-s);
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{background:#F7F6F1;box-shadow:var(--shadow-m);}
.header-inner{height:72px;display:flex;align-items:center;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:
    radial-gradient(circle at 30% 30%, rgba(198,242,78,.9) 0 28%, transparent 30%),
    linear-gradient(140deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:9px 9px 9px 9px;border-radius:3px;
  border:2px solid rgba(255,255,255,.75);border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(45deg);
}
.logo-text{font-size:18px;font-weight:600;color:var(--c-primary);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px;}
.nav-link{
  position:relative;font-size:15px;color:var(--c-ink-soft);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--c-primary);white-space:nowrap;
}
.link-arrow .arw{transition:transform .22s var(--ease);}
.link-arrow:hover{color:var(--c-primary-deep);text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover .arw{transform:translateX(4px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:0 22px;height:44px;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:0 1px 2px rgba(11,31,28,.08);}
.btn-primary:hover{background:#d3f86a;color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--shadow-m);}
.btn-primary:active{transform:translateY(0);background:#bde845;}
.btn-outline{background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(20,85,75,.08);color:var(--c-primary-deep);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,31,28,.4);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:296px;max-width:86vw;z-index:71;
  background:var(--c-bg);border-left:1px solid var(--c-line);
  box-shadow:var(--shadow-l);padding:24px 22px;
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer h2{font-size:14px;color:var(--c-muted);font-weight:600;margin-bottom:6px;}
.drawer .nav-link{font-size:16px;padding:12px 0;border-bottom:1px solid var(--c-line);}
.drawer .nav-link::after{display:none;}
.drawer .drawer-cta{margin-top:18px;}
.drawer .drawer-cta .btn{width:100%;}

/* ---------- 页面主体 ---------- */
main{padding-top:72px;}
.page-wrap{padding:40px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);line-height:1.5;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#C9CFC9;}
.breadcrumb .current{color:var(--c-ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{padding:24px 0 28px;border-bottom:1px solid var(--c-line);}
.article-head h1{
  font-size:34px;line-height:1.3;font-weight:600;color:var(--c-ink);
  max-width:860px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--c-muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9CFC9;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-accent);color:var(--c-ink);font-size:13px;line-height:1;
}
.tag-soft{background:rgba(20,85,75,.08);color:var(--c-primary);}

.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 312px;
  gap:56px;align-items:start;padding:44px 0 0;
}
.article-body{min-width:0;max-width:760px;}
.prose{font-size:16px;line-height:1.85;color:var(--c-ink-soft);}
.prose > * + *{margin-top:20px;}
.prose p{font-size:16px;line-height:1.85;}
.prose h2{
  font-size:24px;line-height:1.35;margin-top:40px;margin-bottom:16px;color:var(--c-ink);
  padding-left:14px;position:relative;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:3px;background:var(--c-accent);
}
.prose h3{font-size:19px;line-height:1.45;margin-top:28px;margin-bottom:12px;color:var(--c-ink);}
.prose h4{font-size:17px;margin-top:22px;margin-bottom:10px;color:var(--c-ink);}
.prose ul{list-style:none;padding-left:2px;}
.prose ul li{position:relative;padding-left:20px;margin-top:10px;font-size:16px;line-height:1.8;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--c-primary);
}
.prose ol{list-style:decimal;padding-left:22px;}
.prose ol li{margin-top:10px;font-size:16px;line-height:1.8;padding-left:4px;}
.prose ol li::marker{color:var(--c-primary);font-weight:600;}
.prose blockquote{
  margin:24px 0;padding:18px 22px;background:rgba(20,85,75,.05);
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:var(--c-ink-soft);
}
.prose blockquote p{font-size:15.5px;line-height:1.8;}
.prose img{border-radius:var(--r-img);margin:24px 0 10px;width:100%;height:auto;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.prose a{
  color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:rgba(20,85,75,.35);
}
.prose a:hover{color:var(--c-warm);text-decoration-color:currentColor;}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:rgba(20,85,75,.07);color:var(--c-primary-deep);
  padding:2px 6px;border-radius:6px;
}
.prose pre{
  background:rgba(20,85,75,.07);border:1px solid var(--c-line);border-radius:14px;
  padding:16px 18px;overflow-x:auto;line-height:1.7;
}
.prose pre code{background:transparent;padding:0;font-size:14px;}
.prose table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;}
.prose th,.prose td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;white-space:nowrap;}
.prose th{background:rgba(20,85,75,.06);color:var(--c-ink);font-weight:600;}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}

.empty-state{
  border:1.5px dashed var(--c-line);border-radius:20px;
  min-height:220px;padding:44px 24px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;
}
.empty-state .es-icon{
  width:48px;height:48px;border-radius:14px;background:rgba(20,85,75,.08);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.empty-state p{font-size:15px;color:var(--c-muted);}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-s);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.side-card:hover{box-shadow:var(--shadow-m);border-color:rgba(20,85,75,.28);}
.side-card h2{font-size:16px;margin-bottom:14px;}
.side-list li + li{margin-top:4px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;color:var(--c-ink-soft);padding:10px 12px;border-radius:10px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-list a:hover{background:rgba(20,85,75,.07);color:var(--c-primary);}
.side-list a::after{content:"›";color:var(--c-muted);}
.side-note{font-size:14px;line-height:1.7;color:var(--c-muted);}
.side-cta{background:var(--c-primary-deep);border-color:var(--c-primary-deep);}
.side-cta h2{color:#fff;}
.side-cta p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.7;margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-cta:hover{border-color:var(--c-primary-deep);}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:24px;}
.section-head p{font-size:14px;color:var(--c-muted);margin-top:6px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.mini-card{
  display:flex;gap:14px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:14px;box-shadow:var(--shadow-s);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-l);border-color:rgba(20,85,75,.28);}
.mini-thumb{width:96px;height:64px;border-radius:10px;overflow:hidden;flex-shrink:0;background:#EDEDE6;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.mini-card:hover .mini-thumb img{transform:scale(1.04);}
.mini-body{min-width:0;}
.mini-body h3{
  font-size:15px;line-height:1.45;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-body .mini-date{font-size:13px;color:var(--c-muted);margin-top:8px;}
.pager{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:28px;font-size:14.5px;
}
.pager .pager-links{display:flex;gap:22px;}

/* ---------- 结尾 CTA ---------- */
.cta-band{padding:80px 0 0;}
.cta-inner{
  position:relative;overflow:hidden;
  background:var(--c-primary-deep);border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-inner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px, transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.cta-text{position:relative;z-index:1;max-width:640px;}
.cta-text h2{color:#fff;font-size:26px;line-height:1.35;}
.cta-text p{color:rgba(255,255,255,.72);font-size:15px;margin-top:10px;}
.cta-inner .btn{position:relative;z-index:1;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--c-primary-deep);color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-top{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:44px;
}
.footer-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-mark{width:28px;height:28px;border-radius:8px;}
.footer-logo .logo-text{color:#fff;font-size:18px;font-weight:600;}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.65);max-width:320px;}
.footer-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.65);}
.footer-col a:hover{color:var(--c-accent);}
.footer-col li{font-size:14px;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom nav a{font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom nav a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .side{position:static;top:auto;}
  .article-body{max-width:100%;}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-inner{padding:36px 32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .site-header,.header-inner{height:64px;}
  main{padding-top:64px;}
  .article-head h1{font-size:28px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-text h2{font-size:22px;}
  .cta-inner .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:640px){
  .header-actions .link-arrow{display:none;}
  .article-head h1{font-size:26px;}
  .prose,.prose p{font-size:15px;line-height:1.8;}
  .prose h2{font-size:21px;}
  .prose h3{font-size:18px;}
  .pager{flex-direction:column;align-items:flex-start;gap:14px;}
  .pager .pager-links{flex-direction:column;gap:10px;}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .mini-card{flex-direction:column;align-items:stretch;}
  .mini-thumb{width:100%;height:150px;}
}

/* roulang page: category1 */
:root{
  --c-ink:#0B1F1C;
  --c-primary:#14554B;
  --c-primary-deep:#0E3E37;
  --c-accent:#C6F24E;
  --c-warm:#E2703A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E2E1D8;
  --c-muted:#6B7A74;
  --c-ink-soft:#3C4A46;
  --r-lg:24px;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --shadow-s:0 1px 2px rgba(11,31,28,.04),0 1px 3px rgba(11,31,28,.06);
  --shadow-m:0 8px 24px -12px rgba(11,31,28,.18);
  --shadow-l:0 24px 60px -28px rgba(11,31,28,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:40px;line-height:1.2;font-weight:600;letter-spacing:-.01em}
h2{font-size:30px;line-height:1.25;font-weight:600;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.45;font-weight:600}
strong{font-weight:600}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(247,246,241,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid rgba(11,31,28,.08);
  box-shadow:var(--shadow-s);
  transition:background 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{background:#F7F6F1;box-shadow:var(--shadow-m)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px 8px auto auto;width:11px;height:11px;border-radius:3px;
  background:var(--c-accent);
}
.brand-text{font-size:18px;font-weight:600;color:var(--c-primary);letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--c-ink-soft);padding:6px 0;
  transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform 200ms var(--ease);border-radius:2px;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.text-link{
  font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;
  transition:color 200ms var(--ease);
}
.text-link .arrow{transition:transform 200ms var(--ease)}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}
.text-link:hover .arrow{transform:translateX(4px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary);transition:transform 200ms var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,31,28,.4);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);z-index:70;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;background:var(--c-bg);
  z-index:80;transform:translateX(100%);transition:transform 240ms var(--ease);
  padding:22px 22px 32px;overflow-y:auto;box-shadow:var(--shadow-l);
  display:flex;flex-direction:column;gap:8px;
}
.drawer h3{font-size:13px;color:var(--c-muted);font-weight:600;margin:14px 0 4px}
.drawer a{
  font-size:15px;color:var(--c-ink-soft);padding:11px 12px;border-radius:12px;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.drawer a:hover,.drawer a.active{background:rgba(20,85,75,.08);color:var(--c-primary);font-weight:600}
.drawer .btn{margin-top:14px;justify-content:center}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-primary-deep);box-shadow:var(--shadow-s)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-m);filter:brightness(1.03)}
.btn-primary:active{transform:translateY(0);filter:brightness(.97)}
.btn-ghost{
  background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);
}
.btn-ghost:hover{background:rgba(20,85,75,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 页头带 ---------- */
.page-head{
  position:relative;margin-top:72px;padding:58px 0 54px;overflow:hidden;
  background:var(--c-primary-deep);
}
.page-head .bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-head .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,62,55,.78),rgba(14,62,55,.88))}
.page-head .inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:1.5;color:rgba(255,255,255,.66)}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color 200ms var(--ease)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.page-head h1{color:#fff;margin-top:16px;max-width:840px}
.page-head .lead{margin-top:18px;max-width:760px;color:rgba(255,255,255,.8);font-size:16px;line-height:1.8}
.page-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;font-size:13px;line-height:1.5;padding:5px 13px;border-radius:999px;
  background:rgba(198,242,78,.16);color:var(--c-accent);border:1px solid rgba(198,242,78,.3);
}
.tag-plain{background:rgba(255,255,255,.1);color:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.18)}
.tag-solid{background:var(--c-accent);color:var(--c-primary-deep);border:0}
.tag-soft{background:rgba(20,85,75,.08);color:var(--c-primary);border:1px solid rgba(20,85,75,.12)}

/* ---------- 数据条 ---------- */
.data-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-s);margin-top:-38px;position:relative;z-index:5;overflow:hidden;
}
.data-item{padding:26px 24px;border-right:1px solid var(--c-line)}
.data-item:last-child{border-right:0}
.data-item .k{font-size:26px;font-weight:600;color:var(--c-primary);line-height:1.2}
.data-item .k .unit{font-size:14px;font-weight:500;color:var(--c-muted);margin-left:2px}
.data-item .d{font-size:13px;line-height:1.6;color:var(--c-muted);margin-top:8px}

/* ---------- 主体两栏 ---------- */
.section{padding:88px 0}
.section-tight{padding:72px 0 0}
.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:44px;align-items:start}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-s);padding:22px;
}
.side-card h3{font-size:14px;color:var(--c-muted);font-weight:600;letter-spacing:.02em;margin-bottom:12px}
.side-nav li+li{margin-top:4px}
.side-nav a{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-ink-soft);
  padding:9px 10px;border-radius:10px;transition:background 200ms var(--ease),color 200ms var(--ease);
}
.side-nav a:hover{background:rgba(20,85,75,.07);color:var(--c-primary)}
.side-nav a .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex-shrink:0}
.side-nav a .idx{
  font-size:12px;color:var(--c-warm);font-weight:600;font-variant-numeric:tabular-nums;width:16px;
}
.side-links li+li{margin-top:2px}
.side-links a{
  display:block;font-size:14px;color:var(--c-ink-soft);padding:9px 10px;border-radius:10px;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.side-links a:hover{background:rgba(20,85,75,.07);color:var(--c-primary)}
.side-note{font-size:13px;line-height:1.7;color:var(--c-muted)}
.side-note a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}

.content-area{display:flex;flex-direction:column;gap:56px}
.block-head{margin-bottom:24px}
.block-head h2{color:var(--c-ink)}
.block-head p{margin-top:12px;color:var(--c-muted);font-size:15px;line-height:1.8;max-width:680px}
.block-head .eyebrow{
  display:inline-flex;font-size:13px;font-weight:600;color:var(--c-warm);margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-s);padding:24px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-l);border-color:rgba(20,85,75,.28)}
.card .icon{
  width:40px;height:40px;border-radius:12px;background:rgba(198,242,78,.5);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-bottom:16px;
}
.card .icon svg{width:20px;height:20px;stroke:var(--c-primary-deep);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card:hover .icon{background:var(--c-accent)}
.card h3{margin-bottom:10px}
.card p{font-size:15px;line-height:1.8;color:var(--c-ink-soft)}
.card .mini{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.card .mini li{font-size:14px;line-height:1.7;color:var(--c-muted);display:flex;gap:9px;align-items:flex-start}
.card .mini li::before{
  content:"";flex-shrink:0;width:5px;height:5px;border-radius:50%;background:var(--c-primary);margin-top:9px;
}
.card .link-row{margin-top:18px}
.card-media{
  border-radius:var(--r-img);overflow:hidden;margin:-24px -24px 18px;
}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 240ms var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}

/* ---------- 步骤列表 ---------- */
.steps{border-top:1px solid var(--c-line)}
.step{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  padding:24px 0;border-bottom:1px solid var(--c-line);
}
.step .n{
  font-size:15px;font-weight:600;color:#fff;background:var(--c-primary);border-radius:12px;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step h4{margin-bottom:8px}
.step p{font-size:15px;color:var(--c-muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-of-type{border-top:1px solid var(--c-line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 2px;font-size:17px;font-weight:600;color:var(--c-ink);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  width:26px;height:26px;flex-shrink:0;position:relative;border-radius:50%;
  background:rgba(20,85,75,.08);transition:transform 200ms var(--ease),background 200ms var(--ease);
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:12px;height:2px}
.faq-item summary .plus::after{width:2px;height:12px}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--c-accent)}
.faq-item p{padding:0 2px 22px;font-size:15px;line-height:1.8;color:var(--c-muted);max-width:760px}

/* ---------- 内链区 ---------- */
.cross-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cross-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-s);padding:24px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(20,85,75,.28)}
.cross-card h3{font-size:18px}
.cross-card p{font-size:14px;line-height:1.75;color:var(--c-muted)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-primary-deep);border-radius:var(--r-lg);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band .dots{
  position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:16px 16px;
}
.cta-band .txt{position:relative;z-index:2;max-width:640px}
.cta-band h2{color:#fff;font-size:26px;line-height:1.3}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.75);font-size:15px;line-height:1.8}
.cta-band .act{position:relative;z-index:2;display:flex;gap:12px;flex-shrink:0}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);margin-top:96px;padding-top:64px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-mark{background:rgba(255,255,255,.12)}
.footer-logo .logo-text{font-size:18px;font-weight:600;color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:16px}
.footer-col li+li{margin-top:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.65);transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom nav a{font-size:13px;color:rgba(255,255,255,.6);transition:color 200ms var(--ease)}
.footer-bottom nav a:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .layout{grid-template-columns:1fr;gap:36px}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;gap:16px}
  .sidebar .side-card{flex:1 1 260px}
  .section{padding:72px 0}
  .cta-band{padding:40px;flex-direction:column;align-items:flex-start}
  .data-bar{grid-template-columns:repeat(2,1fr)}
  .data-item:nth-child(2){border-right:0}
  .data-item:nth-child(1),.data-item:nth-child(2){border-bottom:1px solid var(--c-line)}
}
@media (max-width:768px){
  .main-nav{display:none}
  .header-actions .text-link{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px;gap:16px}
  .page-head{margin-top:64px;padding:44px 0 46px}
  h1{font-size:30px;line-height:1.25}
  h2{font-size:24px;line-height:1.3}
  .container{padding:0 20px}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .cross-links{grid-template-columns:1fr}
  .footer-top{grid-template-columns:repeat(2,1fr);gap:32px}
  .site-footer{margin-top:72px;padding-top:52px}
  .step{grid-template-columns:52px minmax(0,1fr);gap:14px}
  .faq-item summary{font-size:16px}
}
@media (max-width:640px){
  .section{padding:56px 0}
  .container{padding:0 20px}
  .data-bar{grid-template-columns:1fr;margin-top:-28px}
  .data-item{border-right:0;border-bottom:1px solid var(--c-line);padding:20px}
  .data-item:last-child{border-bottom:0}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:28px;border-radius:18px}
  .cta-band .act{width:100%;flex-direction:column}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .card{padding:20px}
  .card-media{margin:-20px -20px 16px}
  .side-card{padding:18px}
}

/* roulang page: category2 */
:root{
  --c-ink:#0B1F1C;
  --c-primary:#14554B;
  --c-primary-deep:#0E3E37;
  --c-accent:#C6F24E;
  --c-warm:#E2703A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E2E1D8;
  --c-muted:#6B7A74;
  --c-ink-soft:#3C4A46;
  --shadow-s:0 1px 2px rgba(11,31,28,.04),0 1px 3px rgba(11,31,28,.06);
  --shadow-m:0 8px 24px -12px rgba(11,31,28,.18);
  --shadow-l:0 24px 60px -28px rgba(11,31,28,.28);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-btn:12px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
@media(max-width:640px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(247,246,241,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid rgba(11,31,28,.08);
  box-shadow:var(--shadow-s);
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{background:#F7F6F1;box-shadow:var(--shadow-m)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-primary);font-size:18px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.logo-mark{
  position:relative;width:28px;height:28px;border-radius:9px;
  background:var(--c-primary);flex:0 0 28px;
}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:var(--c-accent)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--c-ink-soft);padding:4px 0;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-accent);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:20px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(20,85,75,.28);box-shadow:var(--shadow-s)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,31,28,.4);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:80;
  background:var(--c-bg);border-left:1px solid var(--c-line);
  transform:translateX(102%);transition:transform .26s var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  box-shadow:var(--shadow-l);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface);display:flex;align-items:center;justify-content:center;
  font-size:18px;color:var(--c-primary);
}
.drawer-link{
  display:block;padding:14px 4px;font-size:16px;color:var(--c-ink-soft);
  border-bottom:1px solid var(--c-line);transition:color .2s var(--ease);
}
.drawer-link:hover,.drawer-link.active{color:var(--c-primary);font-weight:600}
.drawer-cta{margin-top:20px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-primary-deep);box-shadow:var(--shadow-s)}
.btn-primary:hover{transform:translateY(-1px);background:#D3F76A;box-shadow:var(--shadow-m)}
.btn-primary:active{transform:translateY(0);background:#B9E545}
.btn-ghost{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:rgba(20,85,75,.08);transform:translateY(-1px)}
.btn-ghost:active{background:rgba(20,85,75,.14);transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-size:15px;font-weight:600;transition:color .2s var(--ease);
}
.text-link .arrow{display:inline-block;transition:transform .2s var(--ease)}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- page band ---------- */
.page-band{
  position:relative;overflow:hidden;
  padding:150px 0 78px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,62,55,.88) 0%,rgba(11,31,28,.84) 100%);
}
.page-band::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.band-inner{position:relative;z-index:2;max-width:840px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:1.5;color:rgba(255,255,255,.62);margin-bottom:20px;
}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:rgba(255,255,255,.94);font-weight:600}
.page-band h1{
  font-size:40px;line-height:1.2;font-weight:600;letter-spacing:-.01em;
  color:#FFFFFF;margin-bottom:20px;
}
.page-band p{font-size:16px;line-height:1.75;color:rgba(255,255,255,.76);margin-bottom:12px}
.page-band p:last-of-type{margin-bottom:0}
.band-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.band-tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:999px;font-size:13px;line-height:1.5;
  background:rgba(198,242,78,.16);color:#E7FBB4;border:1px solid rgba(198,242,78,.34);
}
@media(max-width:768px){
  .page-band{padding:120px 0 56px}
  .page-band h1{font-size:30px;line-height:1.25}
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
@media(max-width:1024px){.section{padding:72px 0}}
@media(max-width:640px){.section{padding:56px 0}}
.section-head{max-width:760px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;line-height:1.5;
  color:var(--c-warm);font-weight:600;margin-bottom:12px;
}
.eyebrow-line{display:inline-block;width:26px;height:2px;border-radius:2px;background:var(--c-warm)}
h2{font-size:30px;line-height:1.25;font-weight:600;letter-spacing:-.01em;color:var(--c-ink)}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-muted)}
@media(max-width:640px){h2{font-size:24px;line-height:1.3}.section-head p{font-size:15px}}

/* ---------- stats ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);box-shadow:var(--shadow-s);overflow:hidden;
}
.stat{padding:26px 24px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat-num{font-size:26px;font-weight:600;color:var(--c-primary);letter-spacing:-.01em}
.stat-num .unit{font-size:13px;font-weight:600;color:var(--c-warm);margin-left:4px}
.stat-label{margin-top:6px;font-size:12px;line-height:1.6;color:var(--c-muted)}
@media(max-width:768px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--c-line)}
}
@media(max-width:520px){
  .stat{padding:20px 18px}
  .stat-num{font-size:22px}
}

/* ---------- row cards ---------- */
.row-grid{display:grid;gap:20px}
.row-card{
  display:grid;grid-template-columns:230px 1fr;gap:22px;align-items:stretch;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--shadow-s);
  padding:18px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.row-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-l);border-color:rgba(20,85,75,.28)}
.row-thumb{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/10;background:var(--c-bg);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.row-card:hover .row-thumb img{transform:scale(1.04)}
.row-body{display:flex;flex-direction:column;padding:6px 6px 6px 0}
.row-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:999px;font-size:13px;line-height:1.5;
  background:rgba(198,242,78,.35);color:var(--c-primary-deep);font-weight:600;
}
.badge-soft{background:rgba(20,85,75,.08);color:var(--c-primary)}
.row-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px}
.row-card p{font-size:15px;line-height:1.75;color:var(--c-muted)}
.row-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.point{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1.5;
  color:var(--c-ink-soft);background:var(--c-bg);border:1px solid var(--c-line);
  border-radius:8px;padding:5px 10px;
}
.point::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary);flex:0 0 6px}
.row-foot{margin-top:auto;padding-top:16px}
@media(max-width:768px){
  .row-card{grid-template-columns:1fr;gap:16px;padding:16px}
  .row-body{padding:0 2px 4px}
}
@media(max-width:520px){
  .row-card h3{font-size:18px}
  .row-card p{font-size:14px}
}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:920px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:17px;line-height:1.45;font-weight:600;color:var(--c-ink);
  cursor:pointer;list-style:none;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;margin-top:5px;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-answer{padding:0 40px 24px 0;font-size:15px;line-height:1.8;color:var(--c-muted)}
@media(max-width:520px){
  .faq-item summary{font-size:16px;padding:18px 0}
  .faq-answer{padding-right:12px}
}

/* ---------- cross links ---------- */
.link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.link-card{
  display:block;padding:26px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--shadow-s);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(20,85,75,.28)}
.link-card .kicker{font-size:13px;color:var(--c-warm);font-weight:600;margin-bottom:10px}
.link-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px}
.link-card p{font-size:14px;line-height:1.7;color:var(--c-muted);margin-bottom:18px}
@media(max-width:768px){.link-grid{grid-template-columns:1fr}}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 96px}
@media(max-width:640px){.cta-wrap{padding:0 0 56px}}
.cta-box{
  position:relative;overflow:hidden;
  background:var(--c-primary-deep);border-radius:var(--r-lg);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-l);
}
.cta-box::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:20px 20px;
}
.cta-text{position:relative;z-index:2;max-width:620px}
.cta-text h2{color:#FFFFFF;font-size:28px;line-height:1.3}
.cta-text p{margin-top:12px;font-size:15px;line-height:1.7;color:rgba(255,255,255,.72)}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:768px){
  .cta-box{flex-direction:column;align-items:flex-start;padding:36px 24px;border-radius:20px;gap:24px}
  .cta-text h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .footer-logo{display:inline-flex;align-items:center;gap:10px;color:#FFFFFF;font-size:18px;font-weight:600}
.footer-logo .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.64);max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;line-height:1.7}
.footer-col ul li a{color:rgba(255,255,255,.65);transition:color .2s var(--ease)}
.footer-col ul li a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;line-height:1.6;color:rgba(255,255,255,.6)}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom nav a{font-size:13px;color:rgba(255,255,255,.6);transition:color .2s var(--ease)}
.footer-bottom nav a:hover{color:var(--c-accent)}
@media(max-width:1024px){
  .footer-top{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media(max-width:640px){
  .site-footer{padding:56px 0 0}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
}
@media(max-width:768px){
  .main-nav{display:none}
  .header-actions .text-link{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px}
}
@media(max-width:640px){
  .band-tags{gap:8px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
}

/* roulang page: category3 */
:root{
    --c-ink:#0B1F1C;
    --c-primary:#14554B;
    --c-primary-deep:#0E3E37;
    --c-accent:#C6F24E;
    --c-warm:#E2703A;
    --c-bg:#F7F6F1;
    --c-surface:#FFFFFF;
    --c-line:#E2E1D8;
    --c-muted:#6B7A74;
    --c-ink-soft:#3C4A46;
    --shadow-s:0 1px 2px rgba(11,31,28,.04),0 1px 3px rgba(11,31,28,.06);
    --shadow-m:0 8px 24px -12px rgba(11,31,28,.18);
    --shadow-l:0 24px 60px -28px rgba(11,31,28,.28);
    --r-lg:24px;
    --r-card:18px;
    --r-img:16px;
    --r-btn:12px;
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  body.no-scroll{overflow:hidden;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease);}
  button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;}
  input,select,textarea{font:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

  body .container{
    width:100%;
    max-width:1200px;
    margin-left:auto;
    margin-right:auto;
    padding-left:32px;
    padding-right:32px;
  }

  /* ---------- 通用排版 ---------- */
  .h1{
    font-size:40px;
    line-height:1.2;
    font-weight:600;
    letter-spacing:-.01em;
  }
  .h2{
    font-size:30px;
    line-height:1.25;
    font-weight:600;
    letter-spacing:-.01em;
  }
  .h3{
    font-size:20px;
    line-height:1.4;
    font-weight:600;
  }
  .h4{
    font-size:17px;
    line-height:1.45;
    font-weight:600;
  }
  .lead{
    font-size:16px;
    color:var(--c-ink-soft);
    line-height:1.8;
  }
  .muted{color:var(--c-muted);}
  .small{font-size:14px;line-height:1.7;}
  .tiny{font-size:13px;line-height:1.5;}

  .section{padding:104px 0;}
  .section-tight{padding:72px 0;}
  .sec-head{max-width:760px;}
  .sec-head .h2{margin-bottom:14px;}
  .sec-head p{color:var(--c-ink-soft);}
  .sec-body{margin-top:32px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 22px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:600;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--c-accent);
    color:var(--c-primary-deep);
    box-shadow:var(--shadow-s);
  }
  .btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-m);background:#d2f96b;}
  .btn-primary:active{transform:translateY(0);background:#b7e445;}
  .btn-ghost{
    border:1.5px solid var(--c-primary);
    color:var(--c-primary);
    background:transparent;
  }
  .btn-ghost:hover{background:rgba(20,85,75,.08);transform:translateY(-1px);}
  .btn-ghost:active{background:rgba(20,85,75,.14);transform:translateY(0);}
  .btn-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--c-primary);
    font-weight:600;
    font-size:15px;
  }
  .btn-link .arrow{transition:transform .22s var(--ease);}
  .btn-link:hover{text-decoration:underline;text-underline-offset:4px;}
  .btn-link:hover .arrow{transform:translateX(4px);}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:13px;
    line-height:1.5;
    padding:4px 12px;
    border-radius:999px;
    background:var(--c-accent);
    color:var(--c-primary-deep);
    font-weight:600;
  }
  .badge-soft{
    background:rgba(20,85,75,.08);
    color:var(--c-primary);
    font-weight:500;
  }
  .badge-warm{
    background:rgba(226,112,58,.12);
    color:#B8541F;
    font-weight:600;
  }

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:80;
    background:rgba(247,246,241,.72);
    -webkit-backdrop-filter:blur(18px) saturate(1.4);
    backdrop-filter:blur(18px) saturate(1.4);
    border-bottom:1px solid rgba(11,31,28,.08);
    box-shadow:var(--shadow-s);
    transition:background-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .site-header.is-scrolled{
    background:#F7F6F1;
    box-shadow:var(--shadow-m);
  }
  .header-inner{
    height:72px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    width:30px;height:30px;
    border-radius:9px;
    background:var(--c-primary);
    position:relative;
    flex-shrink:0;
  }
  .logo-mark::before{
    content:"";
    position:absolute;
    left:7px;top:7px;
    width:9px;height:9px;
    border-radius:3px;
    background:var(--c-accent);
  }
  .logo-mark::after{
    content:"";
    position:absolute;
    right:7px;bottom:7px;
    width:9px;height:9px;
    border-radius:999px;
    border:2px solid rgba(255,255,255,.72);
  }
  .logo-text{
    font-size:18px;
    font-weight:600;
    color:var(--c-primary);
    letter-spacing:-.01em;
  }
  .logo-text .tail{color:var(--c-muted);font-weight:500;}
  .main-nav{
    display:flex;
    align-items:center;
    gap:28px;
  }
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--c-ink-soft);
    padding:6px 0;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-2px;
    height:2px;
    border-radius:2px;
    background:var(--c-accent);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .22s var(--ease);
  }
  .nav-link:hover{color:var(--c-primary);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--c-primary);font-weight:600;}
  .nav-link.active::after{transform:scaleX(1);}
  .header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
  .header-actions .btn{height:40px;padding:0 18px;font-size:14px;}
  .header-search{
    display:flex;align-items:center;gap:8px;
    font-size:14px;color:var(--c-muted);
  }
  .header-search:hover{color:var(--c-primary);}
  .nav-toggle{
    display:none;
    width:42px;height:42px;
    border-radius:12px;
    border:1px solid var(--c-line);
    background:var(--c-surface);
    box-shadow:var(--shadow-s);
    align-items:center;
    justify-content:center;
  }
  .nav-toggle span{
    display:block;
    width:18px;height:2px;
    background:var(--c-primary);
    border-radius:2px;
    position:relative;
  }
  .nav-toggle span::before,
  .nav-toggle span::after{
    content:"";
    position:absolute;left:0;
    width:18px;height:2px;
    background:var(--c-primary);
    border-radius:2px;
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}

  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(11,31,28,.4);
    opacity:0;visibility:hidden;
    transition:opacity .22s var(--ease),visibility .22s var(--ease);
    z-index:90;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;
    top:0;right:0;bottom:0;
    width:min(86vw,340px);
    background:var(--c-bg);
    z-index:100;
    transform:translateX(100%);
    transition:transform .24s var(--ease);
    padding:26px 22px;
    display:flex;
    flex-direction:column;
    gap:22px;
    box-shadow:var(--shadow-l);
    overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{
    width:40px;height:40px;border-radius:12px;
    border:1px solid var(--c-line);
    background:var(--c-surface);
    font-size:20px;line-height:1;color:var(--c-primary);
  }
  .drawer-nav{display:flex;flex-direction:column;gap:4px;}
  .drawer-nav a{
    padding:12px 14px;
    border-radius:12px;
    font-size:15px;
    color:var(--c-ink-soft);
    border:1px solid transparent;
  }
  .drawer-nav a:hover{background:var(--c-surface);border-color:var(--c-line);color:var(--c-primary);}
  .drawer-nav a.active{background:var(--c-surface);border-color:var(--c-line);color:var(--c-primary);font-weight:600;}

  /* ---------- 页头带 ---------- */
  .page-head{
    position:relative;
    padding:150px 0 84px;
    background-color:#0E3E37;
    background-image:linear-gradient(rgba(11,31,28,.74),rgba(14,62,55,.82)),url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    overflow:hidden;
  }
  .page-head::after{
    content:"";
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(198,242,78,.14) 1px,transparent 1px);
    background-size:22px 22px;
    opacity:.5;
    pointer-events:none;
  }
  .page-head .container{position:relative;z-index:2;}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;line-height:1.5;
    color:rgba(255,255,255,.66);
    margin-bottom:22px;
  }
  .breadcrumb a:hover{color:var(--c-accent);}
  .breadcrumb .sep{color:rgba(255,255,255,.4);}
  .breadcrumb .current{color:#fff;}
  .page-head .badge{margin-bottom:18px;}
  .page-head h1{
    color:#fff;
    max-width:820px;
  }
  .page-head .head-desc{
    margin-top:20px;
    max-width:760px;
    color:rgba(255,255,255,.78);
    font-size:16px;
    line-height:1.85;
  }
  .head-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;}

  /* ---------- 数据条 ---------- */
  .stat-bar{
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-s);
    padding:26px 8px;
    display:grid;
    grid-template-columns:repeat(4,1fr);
  }
  .stat{
    padding:0 24px;
    border-right:1px solid var(--c-line);
  }
  .stat:last-child{border-right:0;}
  .stat .num-val{
    font-size:26px;
    font-weight:600;
    line-height:1.2;
    color:var(--c-primary);
  }
  .stat .num-val small{font-size:14px;font-weight:500;margin-left:2px;}
  .stat .num-desc{
    font-size:12px;
    color:var(--c-muted);
    margin-top:6px;
    line-height:1.6;
  }

  /* ---------- 时间轴步骤 ---------- */
  .timeline{
    display:flex;
    flex-direction:column;
    gap:22px;
    margin-top:8px;
  }
  .tl-item{
    position:relative;
    display:grid;
    grid-template-columns:56px 1fr;
    gap:22px;
    align-items:start;
  }
  .tl-item::before{
    content:"";
    position:absolute;
    left:27px;
    top:58px;
    bottom:-24px;
    width:2px;
    background:linear-gradient(180deg,rgba(20,85,75,.28),rgba(20,85,75,.06));
  }
  .tl-item:last-child::before{display:none;}
  .tl-index{
    width:56px;height:56px;
    border-radius:999px;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    box-shadow:var(--shadow-s);
    display:flex;align-items:center;justify-content:center;
    font-size:14px;
    font-weight:600;
    color:var(--c-warm);
    position:relative;
    z-index:1;
  }
  .tl-body{
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-s);
    padding:24px;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .tl-body:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-m);
    border-color:rgba(20,85,75,.28);
  }
  .tl-body h3{margin-bottom:10px;}
  .tl-body > p{color:var(--c-ink-soft);font-size:15px;}
  .tl-points{
    margin-top:16px;
    display:flex;
    flex-direction:column;
    gap:8px;
  }
  .tl-points li{
    position:relative;
    padding-left:20px;
    font-size:14px;
    color:var(--c-muted);
    line-height:1.7;
  }
  .tl-points li::before{
    content:"";
    position:absolute;
    left:2px;top:11px;
    width:6px;height:6px;
    border-radius:999px;
    background:var(--c-primary);
    opacity:.6;
  }
  .tl-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}

  /* ---------- 图文分栏 ---------- */
  .split{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:32px;
    align-items:center;
  }
  .split-media{
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--c-line);
    box-shadow:var(--shadow-m);
    aspect-ratio:16/10;
  }
  .split-media img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .24s var(--ease);
  }
  .split-media:hover img{transform:scale(1.04);}
  .split-text h3{margin-bottom:14px;}
  .split-text p{color:var(--c-ink-soft);font-size:15px;}

  /* ---------- 卡片网格 ---------- */
  .card-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
  }
  .card{
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-s);
    padding:24px;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
    display:flex;
    flex-direction:column;
    gap:12px;
  }
  .card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-m);
    border-color:rgba(20,85,75,.28);
  }
  .icon-box{
    width:40px;height:40px;
    border-radius:12px;
    background:rgba(198,242,78,.42);
    color:var(--c-primary-deep);
    display:flex;align-items:center;justify-content:center;
    font-weight:600;
    font-size:15px;
  }
  .icon-box.deep{background:rgba(20,85,75,.08);color:var(--c-primary);}
  .card p{color:var(--c-muted);font-size:14px;line-height:1.75;}

  /* ---------- FAQ ---------- */
  .faq-list{
    border-top:1px solid var(--c-line);
  }
  .faq-item{
    border-bottom:1px solid var(--c-line);
  }
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:20px;
    padding:22px 4px;
    font-size:17px;
    font-weight:600;
    line-height:1.5;
    transition:color .22s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--c-primary);}
  .faq-plus{
    flex-shrink:0;
    width:24px;height:24px;
    position:relative;
    margin-top:2px;
  }
  .faq-plus::before,
  .faq-plus::after{
    content:"";
    position:absolute;
    left:50%;top:50%;
    background:var(--c-primary);
    border-radius:2px;
    transform:translate(-50%,-50%);
    transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .faq-plus::before{width:14px;height:2px;}
  .faq-plus::after{width:2px;height:14px;}
  .faq-item[open] .faq-plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-item[open] .faq-plus::before{transform:translate(-50%,-50%) rotate(45deg);}
  .faq-answer{
    padding:0 4px 24px;
    font-size:15px;
    line-height:1.8;
    color:var(--c-muted);
    max-width:840px;
  }

  /* ---------- 内链区 ---------- */
  .inner-links{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
  }
  .inner-card{
    display:flex;
    gap:20px;
    align-items:center;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-s);
    padding:20px;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .inner-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-m);
    border-color:rgba(20,85,75,.28);
  }
  .inner-thumb{
    width:112px;
    aspect-ratio:16/10;
    border-radius:12px;
    overflow:hidden;
    flex-shrink:0;
    border:1px solid var(--c-line);
  }
  .inner-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
  .inner-card:hover .inner-thumb img{transform:scale(1.04);}
  .inner-card h4{margin-bottom:6px;}
  .inner-card p{font-size:14px;color:var(--c-muted);line-height:1.7;}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    background:var(--c-primary-deep);
    border-radius:var(--r-lg);
    padding:52px 48px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    overflow:hidden;
    box-shadow:var(--shadow-l);
  }
  .cta-band::after{
    content:"";
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
    background-size:20px 20px;
    opacity:.5;
    pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:2;}
  .cta-band h2{color:#fff;font-size:26px;line-height:1.3;font-weight:600;}
  .cta-band p{color:rgba(255,255,255,.72);font-size:15px;margin-top:10px;max-width:560px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--c-primary-deep);
    color:rgba(255,255,255,.72);
    padding:76px 0 0;
    margin-top:104px;
  }
  .footer-top{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:52px;
  }
  .footer-logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin-bottom:16px;
  }
  .footer-logo .logo-mark{
    background:rgba(255,255,255,.12);
  }
  .footer-logo .logo-mark::before{background:var(--c-accent);}
  .footer-logo .logo-text{color:#fff;font-size:18px;font-weight:600;}
  .footer-brand p{
    font-size:14px;
    line-height:1.8;
    color:rgba(255,255,255,.66);
    max-width:340px;
  }
  .footer-col h3{
    font-size:14px;
    font-weight:600;
    color:rgba(255,255,255,.9);
    margin-bottom:16px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col a,
  .footer-col li{
    font-size:14px;
    color:rgba(255,255,255,.65);
    line-height:1.7;
    transition:color .22s var(--ease);
  }
  .footer-col a:hover{color:var(--c-accent);}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:22px 0 30px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    flex-wrap:wrap;
  }
  .footer-bottom p{font-size:13px;color:rgba(255,255,255,.55);}
  .footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap;}
  .footer-bottom nav a{font-size:13px;color:rgba(255,255,255,.55);}
  .footer-bottom nav a:hover{color:var(--c-accent);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .card-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
    .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
    .section{padding:80px 0;}
    .cta-band{padding:44px 34px;}
  }
  @media (max-width:900px){
    .split{grid-template-columns:1fr;gap:26px;}
    .stat-bar{grid-template-columns:repeat(2,1fr);gap:22px 0;padding:24px 6px;}
    .stat{padding:0 20px;}
    .stat:nth-child(2){border-right:0;}
  }
  @media (max-width:768px){
    body .container{padding-left:20px;padding-right:20px;}
    .h1{font-size:30px;line-height:1.25;}
    .h2{font-size:24px;line-height:1.3;}
    .main-nav{display:none;}
    .header-actions .btn{display:none;}
    .nav-toggle{display:flex;}
    .header-inner{height:64px;}
    .page-head{padding:124px 0 60px;}
    .section{padding:64px 0;}
    .section-tight{padding:52px 0;}
    .sec-body{margin-top:24px;}
    .site-footer{margin-top:72px;padding-top:60px;}
    .footer-top{grid-template-columns:1fr;gap:30px;padding-bottom:40px;}
    .inner-links{grid-template-columns:1fr;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px 24px;}
    .cta-band h2{font-size:22px;}
  }
  @media (max-width:640px){
    .card-grid{grid-template-columns:1fr;gap:16px;}
    .stat-bar{grid-template-columns:1fr;gap:18px;}
    .stat{border-right:0;padding:0 18px;}
    .stat + .stat{border-top:1px solid var(--c-line);padding-top:18px;}
    .btn{width:100%;}
    .header-actions .btn,
    .cta-actions,
    .head-actions{width:100%;}
    .cta-actions{flex-direction:column;align-items:stretch;}
    .tl-item{grid-template-columns:1fr;gap:12px;}
    .tl-item::before{display:none;}
    .tl-index{width:46px;height:46px;font-size:13px;}
    .tl-body{padding:20px;}
    .inner-card{flex-direction:column;align-items:flex-start;}
    .inner-thumb{width:100%;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }