/* roulang page: index */
:root{
  --bg:#FBFAF6;
  --bg-soft:#F1EFE9;
  --line:#E3E0D8;
  --brand:#0F3B33;
  --brand-dark:#0A2C26;
  --accent:#C6F24E;
  --accent-hover:#BFF03C;
  --accent-ink:#10231F;
  --clay:#C9703F;
  --muted:#6B7570;
  --text:#22312D;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-hero:20px;
  --sh-1:0 1px 0 #E3E0D8, 0 10px 30px -18px rgba(15,59,51,.25);
  --sh-2:0 18px 40px -20px rgba(15,59,51,.30);
  --sh-nav:0 8px 30px -14px rgba(15,59,51,.18);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-dark)}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;color:var(--brand-dark)}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section-soft{background:var(--bg-soft)}
.section-dark{background:var(--brand);color:#EAF2ED}
.section-dark h2,.section-dark h3{color:#FFFFFF}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.16em;line-height:1.6;
  color:var(--brand);background:var(--white);
  border:1px solid var(--line);border-radius:8px;
  padding:5px 12px;font-weight:700;
}
.section-dark .eyebrow{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:var(--accent)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-title{font-size:clamp(24px,3vw,38px);margin:18px 0 12px}
.sec-desc{font-size:16px;color:var(--muted);line-height:1.85}
.section-dark .sec-desc{color:rgba(234,242,237,.72)}
.hl{
  background:linear-gradient(transparent 62%, rgba(198,242,78,.9) 62%);
  padding:0 2px;border-radius:3px;
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;line-height:1;
  border:1px solid transparent;background:transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-accent:hover{background:var(--accent-hover);color:var(--accent-ink);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(15,59,51,.55)}
.btn-outline{border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#FFFFFF;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:8px}
.btn-block{width:100%}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#EAF2ED}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#FFFFFF}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(251,250,246,.9);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:20px;height:20px;border-radius:6px;flex:0 0 20px;
  background:var(--brand);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1px rgba(198,242,78,.35);
}
.brand-mark svg{width:14px;height:14px}
.brand-text{font-size:17px;font-weight:800;color:var(--brand-dark);letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text);border-radius:8px;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.cmd-search:focus-within{border-color:var(--brand);background:var(--white)}
.cmd-search svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto}
.cmd-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;height:100%;
  font-size:14px;color:var(--text);outline:none;
}
.cmd-search input::placeholder{color:#9AA39E}
.kbd{
  flex:0 0 auto;font-size:12px;line-height:1;padding:4px 6px;
  border:1px solid var(--line);border-radius:6px;color:var(--muted);background:var(--white);
}
.nav-quick{font-size:14px;font-weight:600;color:var(--muted)}
.nav-quick:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--white);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px}

/* 抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,380px);z-index:90;
  background:var(--brand-dark);color:#EAF2ED;
  transform:translateX(100%);transition:transform .28s ease-out;
  display:flex;flex-direction:column;padding:24px 22px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,44,38,.5);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head .brand-text{color:#FFFFFF}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:#EAF2ED;font-size:20px;line-height:1;
}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:48px;padding:0 14px;margin-bottom:20px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:10px;
}
.drawer-search input{flex:1;border:0;background:transparent;color:#FFFFFF;font-size:15px;outline:none}
.drawer-search input::placeholder{color:rgba(234,242,237,.5)}
.drawer-nav a{
  display:block;padding:16px 0;font-size:18px;font-weight:600;color:#EAF2ED;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-nav a:hover{color:var(--accent)}
.drawer-cta{margin-top:26px}

/* Hero */
.hero{
  position:relative;padding:76px 0 88px;overflow:hidden;
  background:
    linear-gradient(90deg, rgba(227,224,216,.55) 1px, transparent 1px) 0 0/96px 96px,
    linear-gradient(0deg, rgba(227,224,216,.55) 1px, transparent 1px) 0 0/96px 96px,
    var(--bg);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.6vw,56px);line-height:1.15;letter-spacing:-.02em;font-weight:800;margin:20px 0 20px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:30px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.trust-item svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto}
.hero-visual{position:relative}
.hero-visual::before{
  content:"";position:absolute;right:-18px;bottom:-18px;width:60%;height:60%;
  background:var(--accent);opacity:.16;border-radius:var(--r-hero);z-index:0;
}
.hero-visual img{
  position:relative;z-index:1;width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-hero);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.hero-badge{
  position:absolute;z-index:2;left:-12px;bottom:22px;
  background:var(--white);border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:10px;
}
.hero-badge b{font-size:15px;color:var(--brand-dark)}
.hero-badge span{font-size:13px;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 0 3px rgba(198,242,78,.3)}

/* 卖点 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.feature-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-2)}
.feature-icon{
  width:38px;height:38px;border-radius:10px;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:16px;
  border:1px solid var(--line);
}
.feature-icon svg{width:18px;height:18px}
.feature-card h3{font-size:19px;margin-bottom:8px}
.feature-card p{font-size:15px;color:var(--muted);line-height:1.8}

/* 演示 */
.demo-row{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;padding:44px 0;border-bottom:1px solid var(--line)}
.demo-row:last-child{border-bottom:0;padding-bottom:0}
.demo-row:first-child{padding-top:0}
.demo-row.is-reverse .demo-media{order:2}
.demo-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
.demo-step{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--clay);background:rgba(201,112,63,.1);border-radius:8px;padding:5px 10px;margin-bottom:14px;
}
.demo-row h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:12px}
.demo-row p{color:var(--muted);font-size:16px}
.demo-list{margin-top:18px}
.demo-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text);margin-bottom:10px;
}
.demo-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--accent);box-shadow:inset 0 0 0 1px rgba(15,59,51,.25);
}

/* 数据证据 */
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:48px}
.proof-item{padding:0 28px;border-left:1px solid rgba(255,255,255,.16)}
.proof-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(34px,4.4vw,48px);font-weight:900;line-height:1;color:var(--accent);letter-spacing:-.02em}
.stat-num sup{font-size:.4em;font-weight:800;margin-left:2px;vertical-align:super}
.stat-label{margin-top:12px;font-size:15px;color:rgba(234,242,237,.78);line-height:1.75}
.proof-quote{
  border-left:3px solid var(--clay);background:rgba(255,255,255,.06);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:24px 28px;max-width:820px;
}
.proof-quote p{font-size:17px;color:#EAF2ED;line-height:1.85}
.proof-quote cite{display:block;margin-top:10px;font-size:13px;font-style:normal;color:rgba(234,242,237,.6)}

/* 最新信息 */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.news-head .sec-head{margin-bottom:0}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-2)}
.news-cover{display:block;overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.badge{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;line-height:1.6;
  color:#8A4620;background:rgba(201,112,63,.12);border-radius:8px;padding:3px 9px;
}
.news-body h3{font-size:18px;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-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;font-size:13px;color:var(--muted);
}
.news-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);font-size:13px}
.news-more svg{width:14px;height:14px;transition:transform .18s ease-out}
.news-card:hover .news-more svg{transform:translateX(4px)}
.news-actions{margin-top:32px;display:flex;justify-content:center}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--white);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.empty-state svg{width:28px;height:28px;color:var(--muted);margin:0 auto 14px}
.empty-state p{font-size:15px;margin:0}
.empty-state span{display:block;font-size:13px;color:#9AA39E;margin-top:6px}

/* 方案 */
.price-grid{display:grid;grid-template-columns:1fr 1.08fr 1fr;gap:var(--gap);align-items:start}
.price-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.price-card.is-featured{
  background:var(--brand);border-color:var(--brand);color:#EAF2ED;
  padding:34px 26px;transform:translateY(-12px);
}
.price-card.is-featured:hover{transform:translateY(-16px)}
.price-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;
  background:var(--accent);color:var(--accent-ink);border-radius:8px;padding:4px 10px;margin-bottom:14px;
}
.price-card h3{font-size:20px;margin-bottom:6px}
.price-card.is-featured h3{color:#FFFFFF}
.price-note{font-size:14px;color:var(--muted);margin-bottom:4px}
.price-card.is-featured .price-note{color:rgba(234,242,237,.7)}
.price-value{font-size:30px;font-weight:900;color:var(--brand-dark);letter-spacing:-.02em;margin:14px 0 20px}
.price-card.is-featured .price-value{color:var(--accent)}
.price-list{margin-bottom:26px;flex:1 1 auto}
.price-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;padding:9px 0;border-bottom:1px solid var(--line)}
.price-card.is-featured .price-list li{border-bottom-color:rgba(255,255,255,.14);color:#EAF2ED}
.price-list li:last-child{border-bottom:0}
.price-list svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:5px}
.price-card.is-featured .price-list svg{color:var(--accent)}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;text-align:left;padding:22px 0;
  font-size:16px;font-weight:700;color:var(--brand-dark);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .22s ease-out,background .22s ease-out;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-item.is-open .faq-icon::before{background:var(--clay)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{font-size:15px;color:var(--muted);line-height:1.85;padding:0 40px 22px 0}

/* CTA 带 */
.cta-band{
  position:relative;background:var(--brand-dark);color:#EAF2ED;overflow:hidden;
  border-radius:var(--r-hero);padding:56px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle, rgba(198,242,78,.28), rgba(198,242,78,0) 70%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);color:#FFFFFF;margin-bottom:10px}
.cta-band p{color:rgba(234,242,237,.75);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(234,242,237,.78);padding:72px 0 0;margin-top:104px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .brand-text{color:#FFFFFF}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;max-width:320px;color:rgba(234,242,237,.68)}
.footer-col h4{font-size:14px;font-weight:800;color:#FFFFFF;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(234,242,237,.72)}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 24px 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;margin:0;color:rgba(234,242,237,.55)}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:60;
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 20px;
  background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:15px;
  border-radius:999px;box-shadow:0 18px 34px -16px rgba(15,59,51,.65);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease-out,transform .25s ease-out,visibility .25s;
}
.float-cta svg{width:16px;height:16px}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--accent-hover);color:var(--accent-ink)}

/* 入场动画 */
body.js-ready .reveal{opacity:0;transform:translateY(12px)}
body.js-ready .reveal.is-in{opacity:1;transform:none;transition:opacity .42s ease-out,transform .42s ease-out}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:76px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-sub{max-width:none}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .demo-row{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .demo-row.is-reverse .demo-media{order:0}
  .proof-grid{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .proof-item{padding:0 22px}
  .proof-item:nth-child(3){border-left:0;padding-left:0}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.is-featured{transform:none;padding:28px 24px}
  .price-card.is-featured:hover{transform:translateY(-4px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links,.cmd-search,.nav-quick{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .nav-wrap{height:60px;gap:12px}
  .hero{padding:48px 0 60px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .trust-row{gap:12px 18px}
  .feature-grid,.news-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr;row-gap:26px}
  .proof-item{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.16);padding-top:22px}
  .proof-item:first-child{border-top:0;padding-top:0}
  .hero-badge{left:8px;bottom:8px;padding:10px 12px}
  .cta-band{padding:36px 22px;border-radius:16px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .float-cta{width:56px;height:56px;padding:0;justify-content:center;right:16px;bottom:calc(16px + env(safe-area-inset-bottom))}
  .float-cta span{display:none}
  .site-footer{margin-top:64px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
  body.js-ready .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#FBFAF6;
  --bg-2:#F1EFE9;
  --line:#E3E0D8;
  --primary:#0F3B33;
  --primary-dark:#0A2C26;
  --accent:#C6F24E;
  --accent-ink:#10231F;
  --clay:#C9703F;
  --clay-soft:#F6E7DE;
  --text:#22312D;
  --muted:#6B7570;
  --white:#FFFFFF;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-hero:20px;
  --shadow-1:0 1px 0 #E3E0D8, 0 10px 30px -18px rgba(15,59,51,.25);
  --shadow-2:0 18px 40px -20px rgba(15,59,51,.3);
  --shadow-nav:0 8px 30px -14px rgba(15,59,51,.18);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .18s ease-out}
a:hover{color:var(--primary-dark)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{line-height:1.25;font-weight:800;color:var(--primary);letter-spacing:-.01em}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- grid ---------- */
.grid-x{display:flex;flex-flow:row wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%;min-width:0}
@media (min-width:641px){
  .medium-6{width:50%}
  .medium-4{width:33.3333%}
  .medium-8{width:66.6667%}
}
@media (min-width:1025px){
  .large-4{width:33.3333%}
  .large-5{width:41.6667%}
  .large-6{width:50%}
  .large-7{width:58.3333%}
  .large-8{width:66.6667%}
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,250,246,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--primary);flex:0 0 auto}
.brand-mark{
  width:20px;height:20px;flex:0 0 20px;border-radius:6px;
  background:var(--primary);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:14px;height:14px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  text-decoration:none;padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;
  background:var(--accent);border-radius:2px;transition:left .2s ease-out,right .2s ease-out;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{color:var(--primary);font-weight:700}
.nav-link.is-active::after{left:0;right:0}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-input);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.cmd-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(198,242,78,.35)}
.cmd-search svg{width:16px;height:16px;color:var(--muted);flex:0 0 16px}
.cmd-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  font-size:14px;color:var(--text);outline:none;
}
.cmd-search input::placeholder{color:var(--muted)}
.kbd{
  font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--line);
  border-radius:6px;color:var(--muted);background:var(--white);flex:0 0 auto;
}
.nav-quick{font-size:15px;color:var(--muted);text-decoration:none;white-space:nowrap}
.nav-quick:hover{color:var(--primary);text-decoration:underline}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-weight:700;text-decoration:none;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  min-height:44px;padding:0 22px;font-size:15px;line-height:1;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-accent:hover{background:#b8e844;color:var(--accent-ink);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary{background:var(--primary);color:#F4F8F6}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary);color:#F4F8F6;transform:translateY(-1px)}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--white);flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.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 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:80;
  background:var(--primary-dark);color:#EFEFE7;
  transform:translateX(100%);transition:transform .26s ease-out;
  display:flex;flex-direction:column;padding:22px 22px 32px;overflow-y:auto;
  visibility:hidden;
}
.nav-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-top .brand-text{color:#fff}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.25);
  background:transparent;color:#fff;font-size:20px;line-height:1;
}
.drawer-search{
  display:flex;align-items:center;gap:10px;height:48px;padding:0 14px;margin-bottom:18px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-input);
}
.drawer-search svg{width:16px;height:16px;color:#B9C6C1}
.drawer-search input{flex:1;border:0;background:transparent;color:#fff;outline:none;font-size:15px}
.drawer-search input::placeholder{color:#9DB0AA}
.drawer-links{display:flex;flex-direction:column;margin-bottom:22px}
.drawer-links a{
  font-size:18px;font-weight:600;color:#F1F4F2;text-decoration:none;
  padding:15px 0;border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-links a:hover{color:var(--accent)}
.drawer-links a.is-active{color:var(--accent)}
.drawer-cta{margin-top:auto}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section--tight{padding:80px 0}
.section--dark{background:var(--primary);color:#E9EFEC}
.section--dark h2,.section--dark h3{color:#fff}
.section--alt{background:var(--bg-2)}
.section-head{max-width:760px;margin-bottom:40px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;line-height:1.6;font-weight:700;
  color:var(--clay);text-transform:uppercase;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.section-head h2{margin:12px 0 14px;font-size:clamp(24px,3vw,38px)}
.section-head p{color:var(--muted);font-size:16px}
.section--dark .section-head p{color:#B7C6C0}
.section--dark .tag{color:var(--accent)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;padding:72px 0 88px;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(251,250,246,.2),rgba(251,250,246,.85)),
    repeating-linear-gradient(0deg,rgba(15,59,51,.05) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(90deg,rgba(15,59,51,.05) 0 1px,transparent 1px 40px),
    var(--bg);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--primary);text-decoration:underline}
.crumbs .sep{color:#B6BFBA}
.crumbs .current{color:var(--text)}
.hero-inner{display:flex;align-items:center;gap:56px}
.hero-copy{flex:1 1 58%;min-width:0}
.hero-copy h1{
  font-size:clamp(30px,4.6vw,56px);line-height:1.15;letter-spacing:-.02em;
  margin:14px 0 18px;
}
.hero-copy h1 .hl{
  background:linear-gradient(transparent 62%,var(--accent) 62%);
  padding:0 2px;
}
.hero-copy .lede{font-size:17px;line-height:1.85;color:var(--muted);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px}
.hero-trust span{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--muted)}
.hero-trust svg{width:16px;height:16px;color:var(--primary);flex:0 0 16px}
.hero-media{flex:1 1 42%;position:relative;min-width:0}
.hero-media figure{
  border:1px solid var(--line);border-radius:var(--radius-hero);overflow:hidden;
  background:var(--white);box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;left:-24px;bottom:-24px;width:150px;height:150px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-hero);z-index:-1;
}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.hero-stats .stat{min-width:120px}
.hero-stats .num{font-size:clamp(28px,3.4vw,40px);font-weight:900;color:var(--primary);line-height:1.1;letter-spacing:-.02em}
.hero-stats .num em{font-style:normal;font-size:.5em;color:var(--clay);margin-left:2px;vertical-align:super}
.hero-stats .label{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- feature cards ---------- */
.card{
  height:100%;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-2)}
.card figure{overflow:hidden;background:var(--bg-2)}
.card figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .18s ease-out}
.card:hover figure img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto}
.card-index{font-size:12px;font-weight:800;color:var(--clay);letter-spacing:.08em}
.card-body h3{font-size:20px;margin:8px 0 10px}
.card-body p{font-size:14px;line-height:1.85;color:var(--muted);flex:1 1 auto}
.card-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14px;font-weight:700;color:var(--primary);text-decoration:none;
}
.card-link svg{width:14px;height:14px;transition:transform .18s ease-out}
.card-link:hover svg{transform:translateX(4px)}
.cards-gap{margin-top:-24px}
.cards-gap>[class*="cell"]{margin-top:24px}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:8px}
.compare-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-card);padding:28px;
}
.compare-card h3{font-size:19px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:8px;line-height:1.6;
}
.badge-clay{background:var(--clay-soft);color:#8E4526}
.badge-accent{background:var(--accent);color:var(--accent-ink)}
.badge-ghost{background:rgba(255,255,255,.12);color:#DDE7E3}
.check-list li{
  display:flex;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.12);
  font-size:15px;line-height:1.7;color:#DCE6E2;
}
.check-list li:last-child{border-bottom:0}
.check-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:4px;color:var(--accent)}
.check-list li.warn svg{color:var(--clay)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px;border-top:1px solid var(--line)}
.step{
  position:relative;padding:30px 22px 0;border-right:1px solid var(--line);
}
.step:last-child{border-right:0}
.step .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;background:var(--primary);color:var(--accent);
  font-weight:800;font-size:15px;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}
.step::before{
  content:"";position:absolute;top:-4px;left:0;width:8px;height:8px;border-radius:50%;
  background:var(--accent);border:2px solid var(--bg);
}

/* ---------- env table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--white)}
table.env{width:100%;border-collapse:collapse;min-width:680px;font-size:15px}
table.env th{
  background:var(--primary);color:#F1F5F3;text-align:left;font-weight:700;
  padding:14px 20px;font-size:14px;letter-spacing:.02em;
}
table.env td{padding:15px 20px;border-top:1px solid var(--line);color:var(--text);line-height:1.7}
table.env tbody tr:nth-child(even){background:var(--bg-2)}
.table-hint{display:none;font-size:13px;color:var(--muted);margin-top:10px}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;font-size:16px;font-weight:700;color:var(--primary);
  border-radius:8px;transition:color .18s ease-out;
}
.faq-q:hover{color:var(--primary-dark)}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:var(--muted);line-height:1;
  transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.faq-item.is-open .faq-icon{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:760px}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  border-radius:var(--radius-hero);padding:56px 48px;color:#E9EFEC;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-band p{color:#B7C6C0;font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:#DCE6E2;padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);color:var(--primary-dark)}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB2AB;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#B7C6C0;text-decoration:none}
.footer-col a:hover{color:var(--accent);text-decoration:underline}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
}
.footer-bottom p{font-size:13px;color:#8FA3 9C;color:#8FA39C}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-quick{display:none}
  .cmd-search{width:200px}
  .nav-toggle{display:flex}
  .hero-inner{flex-direction:column;align-items:stretch;gap:36px}
  .hero-copy,.hero-media{flex:1 1 auto}
  .hero-media::after{display:none}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step{border-right:0;border-bottom:1px solid var(--line);padding-bottom:26px}
  .step:nth-child(odd){border-right:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:44px 32px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .nav-wrap{height:60px}
  .cmd-search{display:none}
  .section{padding:56px 0}
  .section--tight{padding:56px 0}
  .page-hero{padding:40px 0 56px}
  .hero-copy .lede{font-size:16px}
  .hero-stats{gap:22px}
  .compare{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{border-right:0!important}
  .faq-q{font-size:15px;padding:18px 2px}
  .cta-band{padding:32px 22px;border-radius:var(--radius-card)}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .table-hint{display:block}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --paper:#FBFAF6;
  --paper-2:#F1EFE9;
  --line:#E3E0D8;
  --ink:#0F3B33;
  --ink-deep:#0A2C26;
  --accent:#C6F24E;
  --accent-soft:#DFF9A6;
  --accent-ink:#10231F;
  --clay:#C9703F;
  --muted:#6B7570;
  --text:#22312D;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --shadow-1:0 1px 0 var(--line), 0 10px 30px -18px rgba(15,59,51,.25);
  --shadow-2:0 18px 40px -20px rgba(15,59,51,.3);
  --shadow-nav:0 8px 30px -14px rgba(15,59,51,.18);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .18s ease}
a:hover{text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-deep);font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:var(--accent-ink);box-shadow:0 10px 24px -16px rgba(15,59,51,.65)}
.btn-accent:hover{background:#D5FA6B}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-light{background:var(--paper);color:var(--ink-deep)}
.btn-light:hover{background:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  letter-spacing:.06em;line-height:1.6;padding:5px 10px;border-radius:8px;
  background:rgba(201,112,63,.12);color:#95502A;border:1px solid rgba(201,112,63,.28);
}
.badge-accent{background:rgba(198,242,78,.22);color:#33501A;border-color:rgba(198,242,78,.6)}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(251,250,246,.94);
  -webkit-backdrop-filter:saturate(150%) blur(10px);backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-deep);flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{width:20px;height:20px;display:inline-flex;color:var(--ink)}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--text);border-radius:8px}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink);text-decoration:none}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:250px;height:38px;padding:0 10px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--muted);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cmd-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(198,242,78,.65)}
.cmd-search svg{width:16px;height:16px;flex:0 0 auto}
.cmd-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--text);outline:none}
.cmd-search input::placeholder{color:#9AA39E}
.kbd{font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--line);border-radius:6px;color:var(--muted);background:#fff;white-space:nowrap}
.nav-quick{font-size:14px;color:var(--muted);white-space:nowrap}
.nav-quick:hover{color:var(--ink);text-decoration:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.nav-overlay{position:fixed;inset:0;background:rgba(10,44,38,.45);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:65}
.nav-overlay.is-open{opacity:1;pointer-events:auto}

/* ---------- Breadcrumb ---------- */
.page-band{padding:26px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:#C4C0B4}
.breadcrumb .current{color:var(--text);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Article ---------- */
.article-section{padding:20px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 240px;gap:56px;justify-content:center;align-items:start}
.article-main{min-width:0}
.article-head{padding-bottom:8px}
.article-head h1{font-size:clamp(26px,3.6vw,44px);line-height:1.2;letter-spacing:-.02em;margin:16px 0 0}
.article-lead{margin:18px 0 0;font-size:17px;line-height:1.8;color:var(--muted)}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;padding:12px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFCBBE}
.meta-row strong{color:var(--ink);font-weight:600}

.article-body{padding-top:34px;font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-body h2{
  position:relative;font-size:clamp(21px,2.4vw,27px);margin:46px 0 16px;padding-left:14px;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:3px;height:20px;background:var(--accent);border-radius:2px;
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:32px 0 12px;font-weight:700;color:var(--ink-deep)}
.article-body p{margin:0 0 18px}
.article-body ul{margin:0 0 20px}
.article-body ul>li{position:relative;padding-left:20px;margin-bottom:9px}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.68em;width:7px;height:7px;background:var(--accent);border-radius:2px;
}
.article-body ol{list-style:decimal;padding-left:24px;margin:0 0 20px}
.article-body ol>li{margin-bottom:9px;padding-left:4px}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--paper-2);
  border-left:3px solid var(--clay);border-radius:0 12px 12px 0;color:#394943;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);border:1px solid var(--line);margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--ink-deep);background:var(--accent-soft)}
.article-body strong{color:var(--ink-deep)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:var(--ink);color:var(--paper);font-weight:700;font-size:14px}
.article-body tr:nth-child(even) td{background:var(--paper-2)}
.article-body pre{
  overflow-x:auto;background:var(--ink-deep);color:#E7F2EC;padding:18px;border-radius:12px;
  font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
  background:var(--paper-2);padding:2px 6px;border-radius:6px;color:#2C4A42;
}
.article-body pre code{background:transparent;padding:0;color:inherit}

.empty-state{
  padding:52px 28px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--paper-2);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

.article-foot{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:52px;padding-top:26px;border-top:1px solid var(--line);
}
.article-foot .foot-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Aside ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
.toc{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1)}
.toc h4{font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:700;margin-bottom:12px}
.toc a{
  display:block;padding:7px 10px;font-size:14px;line-height:1.55;color:var(--muted);
  border-radius:8px;border-left:2px solid transparent;
}
.toc a:hover{background:var(--paper-2);color:var(--ink);text-decoration:none}
.toc a.is-current{color:var(--ink);font-weight:700;background:var(--paper-2);border-left-color:var(--accent)}
.aside-card{background:var(--ink-deep);color:#EFEFE7;border-radius:var(--r-card);padding:22px}
.aside-card h4{color:#fff;font-size:16px;margin-bottom:8px;letter-spacing:0}
.aside-card p{font-size:13px;line-height:1.75;color:rgba(239,239,231,.76);margin-bottom:16px}

/* ---------- Section head ---------- */
.section-head{margin-bottom:34px;max-width:780px}
.section-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink);
  border:1px solid var(--line);background:var(--white);border-radius:8px;padding:5px 10px;
}
.section-head h2{margin:14px 0 10px;font-size:clamp(24px,3vw,38px)}
.section-head p{color:var(--muted);font-size:16px;margin:0}

/* ---------- Related ---------- */
.related{padding:0 0 88px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:32px}
.rel-card{
  display:flex;gap:14px;align-items:center;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:14px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--ink);text-decoration:none}
.rel-card img{width:86px;height:66px;object-fit:cover;border-radius:12px;flex:0 0 auto;aspect-ratio:4/3}
.rel-card .rel-body{min-width:0}
.rel-card h3{font-size:15px;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card time{font-size:12px;color:var(--muted)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink-deep);color:#F2F1E9;padding:84px 0;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.18),rgba(198,242,78,0) 68%);
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);margin-bottom:14px}
.cta-band p{color:rgba(242,241,233,.78);font-size:16px;margin:0;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(242,241,233,.8);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{color:var(--accent)}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(242,241,233,.7);max-width:38ch;margin:0}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:14px;font-weight:700}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(242,241,233,.78);font-size:14px}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(242,241,233,.14);padding:20px 24px 26px;font-size:13px;color:rgba(242,241,233,.6);
}
.footer-bottom p{margin:0}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:calc(24px + env(safe-area-inset-bottom,0px));
  width:48px;height:48px;border-radius:50%;background:var(--accent);color:var(--accent-ink);
  display:flex;align-items:center;justify-content:center;z-index:50;
  box-shadow:0 14px 30px -16px rgba(15,59,51,.7);opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
}
.to-top.is-visible{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex}
  .cmd-search{display:none}
  .nav-quick{display:none}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);z-index:70;
    background:var(--ink-deep);flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:92px 24px 32px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s ease;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{color:#F7F5EE;font-size:18px;font-weight:500;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.14);border-radius:0}
  .nav-link:hover{color:var(--accent)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--accent)}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:minmax(0,1fr)}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .nav-wrap{height:60px;gap:12px}
  .brand-text{font-size:16px}
  .page-band{padding:18px 0 0}
  .article-section{padding:14px 0 56px}
  .article-head h1{font-size:clamp(22px,6.4vw,30px)}
  .article-body{padding-top:24px;font-size:16px;line-height:1.88}
  .article-body h2{margin-top:34px}
  .related{padding:0 0 56px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;padding:18px 18px 24px}
  .to-top{right:16px;width:46px;height:46px}
  .btn{height:46px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .btn:hover,.rel-card:hover,.to-top:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#FBFAF6;
  --surface:#FFFFFF;
  --surface-2:#F1EFE9;
  --line:#E3E0D8;
  --brand:#0F3B33;
  --brand-dark:#0A2C26;
  --accent:#C6F24E;
  --accent-ink:#10231F;
  --clay:#C9703F;
  --text:#22312D;
  --muted:#6B7570;
  --warn:#B4552F;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-hero:20px;
  --shadow-1:0 1px 0 #E3E0D8, 0 10px 30px -18px rgba(15,59,51,.25);
  --shadow-2:0 18px 40px -20px rgba(15,59,51,.30);
  --shadow-nav:0 8px 30px -14px rgba(15,59,51,.18);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
::selection{background:var(--accent);color:var(--accent-ink)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,250,246,.94);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--brand);flex:0 0 auto}
.brand-mark{
  width:20px;height:20px;flex:0 0 auto;border-radius:6px;
  background:var(--brand);color:var(--accent);
  display:grid;place-items:center;
}
.brand-mark svg{width:14px;height:14px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;white-space:nowrap;text-decoration:none;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;transition:left .2s var(--ease),right .2s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{left:0;right:0}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;
  background:var(--surface-2);border:1px solid transparent;border-radius:var(--r-btn);
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.cmd-search:focus-within{border-color:var(--brand);background:var(--surface)}
.cmd-search svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto}
.cmd-search input{
  flex:1;min-width:0;border:0;background:transparent;font:inherit;
  font-size:14px;color:var(--text);outline:none;padding:0;
}
.cmd-search input::placeholder{color:var(--muted)}
.kbd{
  font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--line);
  border-radius:6px;color:var(--muted);background:var(--surface);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.nav-quick{font-size:14px;color:var(--muted);white-space:nowrap}
.nav-quick:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-btn);padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:var(--brand);border-radius:2px}

/* 抽屉 */
.drawer-scrim{
  position:fixed;inset:0;background:rgba(10,44,38,.5);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s var(--ease);
}
.drawer-scrim.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:100;
  background:var(--brand-dark);color:#F4F2EA;
  display:flex;flex-direction:column;gap:20px;padding:20px 20px 28px;
  transform:translateX(102%);transition:transform .24s var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-head .brand-text{color:#F4F2EA}
.drawer-head .brand-mark{background:var(--accent);color:var(--brand-dark)}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid rgba(244,242,234,.22);
  background:transparent;color:#F4F2EA;font-size:22px;line-height:1;cursor:pointer;
}
.drawer-search{display:flex;align-items:center;gap:10px;height:48px;padding:0 14px;border-radius:var(--r-btn);background:rgba(244,242,234,.08);border:1px solid rgba(244,242,234,.16)}
.drawer-search input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:#F4F2EA;font:inherit;font-size:15px}
.drawer-search svg{width:17px;height:17px;color:rgba(244,242,234,.6);flex:0 0 auto}
.drawer-links{display:grid}
.drawer-links a{
  font-size:18px;font-weight:600;color:#F4F2EA;padding:16px 0;text-decoration:none;
  border-bottom:1px solid rgba(244,242,234,.14);
}
.drawer-links a.is-active{color:var(--accent)}
.drawer-links a:hover{color:var(--accent)}
.drawer-cta{margin-top:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-accent:hover{background:#B9E845;color:var(--accent-ink);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(15,59,51,.55)}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#FBFAF6;transform:translateY(-1px)}
.btn-onDark{background:transparent;color:#F4F2EA;border-color:rgba(244,242,234,.42)}
.btn-onDark:hover{background:rgba(244,242,234,.12);color:#fff;transform:translateY(-1px)}

/* ============ 标题带 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line);padding:56px 0 64px}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(15,59,51,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(15,59,51,.055) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
}
.breadcrumb{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:28px;
}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#B9B5A9}
.breadcrumb .current{color:var(--text);font-weight:600}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--brand);background:rgba(198,242,78,.3);
  border:1px solid rgba(15,59,51,.14);border-radius:8px;padding:6px 12px;
}
.hero-copy h1{
  margin:20px 0 18px;
  font-size:clamp(30px,4.6vw,50px);line-height:1.15;font-weight:800;letter-spacing:-.02em;color:var(--brand-dark);
}
.hero-copy h1 em{font-style:normal;color:var(--brand);background:linear-gradient(180deg,transparent 62%,rgba(198,242,78,.72) 62%)}
.hero-lede{font-size:17px;line-height:1.85;color:var(--muted);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{list-style:none;display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px}
.hero-facts li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.hero-facts svg{width:15px;height:15px;color:var(--brand);flex:0 0 auto}
.hero-media{position:relative}
.hero-media::after{
  content:"";position:absolute;right:-18px;bottom:-18px;width:62%;height:56%;
  background:var(--surface-2);border-radius:var(--r-hero);z-index:-1;
}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-hero);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}

/* ============ 正文区 ============ */
.page-main{padding:76px 0 96px}
.body-grid{display:grid;grid-template-columns:252px minmax(0,1fr);gap:56px;align-items:start}
.toc{
  position:sticky;top:92px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px 18px;box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--muted);
  text-transform:uppercase;margin-bottom:12px;
}
.toc-link{
  display:block;font-size:14px;line-height:1.5;padding:9px 10px 9px 12px;
  color:var(--text);border-left:2px solid transparent;border-radius:0 8px 8px 0;
  text-decoration:none;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.toc-link:hover{background:var(--surface-2);color:var(--brand)}
.toc-link.is-active{background:var(--surface-2);color:var(--brand);font-weight:700;border-left-color:var(--accent)}
.toc-note{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;line-height:1.7;color:var(--muted)}

.content-col{max-width:840px}
.content-block{margin-bottom:64px;scroll-margin-top:96px}
.content-block:last-child{margin-bottom:0}
.block-head{margin-bottom:26px}
.tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--clay);background:rgba(201,112,63,.12);
  border-radius:8px;padding:5px 10px;margin-bottom:14px;
}
.content-block h2{
  position:relative;padding-left:16px;
  font-size:clamp(23px,2.7vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.01em;color:var(--brand-dark);
}
.content-block h2::before{
  content:"";position:absolute;left:0;top:.42em;width:4px;height:20px;border-radius:2px;background:var(--accent);
}
.block-lede{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:720px}
.content-block p{font-size:16.5px;line-height:1.9;color:var(--text);margin-bottom:18px}
.content-block p:last-child{margin-bottom:0}
.content-block p strong{color:var(--brand-dark);font-weight:700}
.content-block h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--brand-dark);margin:30px 0 12px}

.bullet-list{list-style:none;display:grid;gap:12px;margin:8px 0 18px}
.bullet-list li{position:relative;padding-left:22px;font-size:16px;line-height:1.85;color:var(--text)}
.bullet-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--accent);border:1px solid var(--brand);
}

.step-list{list-style:none;counter-reset:step;margin:10px 0 18px}
.step-list li{
  counter-increment:step;position:relative;
  padding:0 0 26px 54px;margin-left:19px;border-left:1px solid var(--line);
}
.step-list li:last-child{border-left-color:transparent;padding-bottom:4px}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:-19px;top:-2px;width:38px;height:38px;border-radius:50%;
  background:var(--brand);color:var(--accent);
  display:grid;place-items:center;font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.step-list .step-title{display:block;font-size:16.5px;font-weight:700;color:var(--brand-dark);line-height:1.6}
.step-list .step-desc{display:block;font-size:15px;color:var(--muted);line-height:1.8;margin-top:4px}

.def-list{margin:8px 0 0;border-top:1px solid var(--line)}
.def-list dt{
  font-size:16.5px;font-weight:700;color:var(--brand-dark);
  padding-top:22px;display:flex;align-items:center;gap:10px;
}
.def-list dt::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--clay);flex:0 0 auto;
}
.def-list dd{
  margin:8px 0 0;padding:0 0 22px;border-bottom:1px solid var(--line);
  font-size:15.5px;line-height:1.85;color:var(--muted);max-width:760px;
}
.def-list dd:last-of-type{border-bottom:0}

.callout{
  background:var(--surface-2);border-left:3px solid var(--clay);
  border-radius:0 var(--r-img) var(--r-img) 0;padding:18px 22px;
  font-size:15.5px;line-height:1.85;color:var(--text);margin:24px 0;
}
.callout strong{color:var(--brand-dark)}

.content-figure{
  margin:28px 0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-img);overflow:hidden;
}
.content-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.content-figure figcaption{
  padding:12px 16px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--muted);text-align:center;
}

.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
}
.cmp-table{width:100%;min-width:660px;border-collapse:collapse;font-size:15px;margin:0}
.cmp-table caption{
  caption-side:top;text-align:left;padding:16px 20px;font-size:13px;line-height:1.7;
  color:var(--muted);border-bottom:1px solid var(--line);
}
.cmp-table thead th{
  background:var(--brand);color:#F6F4EC;text-align:left;
  padding:14px 20px;font-size:14px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.cmp-table tbody td{
  padding:16px 20px;border-bottom:1px solid var(--line);
  vertical-align:top;line-height:1.8;color:var(--text);
}
.cmp-table tbody tr:nth-child(odd){background:var(--surface-2)}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody td:first-child{font-weight:700;color:var(--brand-dark);white-space:nowrap}
.scroll-hint{display:none;margin-top:10px;font-size:13px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-section{padding:0 0 88px}
.faq-inner{max-width:860px;margin:0 auto}
.faq-list{margin-top:28px;border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:700;color:var(--brand-dark);line-height:1.6;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--muted);flex:0 0 auto;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.faq-list details[open] summary::after{content:"−";color:var(--brand)}
.faq-list summary:hover{color:var(--brand)}
.faq-list p{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--muted);max-width:780px}

/* ============ CTA ============ */
.cta-section{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;background:var(--brand);color:#F6F4EC;
  border-radius:var(--r-hero);padding:56px 56px 52px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:rgba(198,242,78,.14);pointer-events:none;
}
.cta-band .tag{background:rgba(198,242,78,.18);color:var(--accent)}
.cta-band h2{
  position:relative;font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:800;
  letter-spacing:-.01em;color:#FFFFFF;margin-bottom:14px;
}
.cta-band p{position:relative;font-size:15.5px;line-height:1.85;color:rgba(246,244,236,.78);max-width:560px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:#EDEAE2;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .brand{color:#F6F4EC}
.footer-brand .brand-mark{background:var(--accent);color:var(--brand-dark)}
.footer-brand p{
  margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(237,234,226,.72);max-width:330px;
}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:rgba(237,234,226,.58);margin-bottom:14px;
}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(237,234,226,.86);text-decoration:none}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(237,234,226,.14);
  padding:20px 0 32px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;line-height:1.7;color:rgba(237,234,226,.6);
}
.footer-bottom p{margin:0}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links,.cmd-search,.nav-quick{display:none}
  .nav-toggle{display:block}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-media::after{display:none}
  .body-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .toc{
    position:static;display:flex;gap:8px;overflow-x:auto;padding:12px;
    box-shadow:none;-webkit-overflow-scrolling:touch;
  }
  .toc-title{display:none}
  .toc-link{
    white-space:nowrap;border-left:0;border-bottom:2px solid transparent;
    border-radius:8px;padding:8px 12px;
  }
  .toc-link.is-active{border-left:0;border-bottom-color:var(--accent)}
  .toc-note{display:none}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:44px 32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-hero{padding:40px 0 48px}
  .page-main{padding:52px 0 64px}
  .content-block{margin-bottom:52px}
  .content-block p{font-size:16px}
  .faq-section{padding-bottom:60px}
  .cta-section{padding-bottom:64px}
  .cta-band{padding:34px 22px;border-radius:var(--r-card)}
  .footer-grid{padding:48px 0 32px}
}
@media (max-width:640px){
  .nav-wrap{height:60px;gap:12px}
  .brand-text{font-size:16px}
  .hero-copy h1{font-size:clamp(27px,7.6vw,34px)}
  .hero-lede{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-facts{flex-direction:column;gap:8px}
  .step-list li{padding-left:46px;margin-left:16px}
  .step-list li::before{width:34px;height:34px;left:-17px;font-size:12px}
  .scroll-hint{display:block}
  .cmp-table{min-width:560px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}