/* roulang page: index */
:root{
  --brand:#12C08A;
  --brand-deep:#0A8F66;
  --accent:#FFB020;
  --ink:#0E1512;
  --ink-soft:#1B241F;
  --paper:#F6F7F4;
  --paper-2:#FFFFFF;
  --line:#E3E6E0;
  --muted:#5B6660;
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(14,21,18,.05), 0 8px 24px rgba(14,21,18,.06);
  --shadow-2:0 2px 6px rgba(14,21,18,.08), 0 18px 44px rgba(14,21,18,.10);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-0.02em;font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}
@media (min-width:1280px){.wrap{max-width:1240px;padding-left:48px;padding-right:48px;}}

.section{padding-top:64px;padding-bottom:64px;}
@media (min-width:768px){.section{padding-top:80px;padding-bottom:80px;}}
@media (min-width:1024px){.section{padding-top:104px;padding-bottom:104px;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-deep);
  letter-spacing:.02em;
}
.eyebrow::before{
  content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;
}
.h2{
  font-size:clamp(1.55rem,2.6vw,2.3rem);
  font-weight:800;
  color:var(--ink);
  margin-top:14px;
}
.lead{
  color:var(--muted);
  font-size:16px;
  max-width:720px;
  margin-top:16px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,247,244,.86);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  background:rgba(246,247,244,.94);
  box-shadow:0 1px 0 rgba(14,21,18,.03);
}
.nav-inner{
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:56px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;font-size:18px;color:var(--ink);
  white-space:nowrap;
}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  border:2px solid var(--brand);
  display:grid;place-items:center;flex:none;
}
.logo-mark span{
  width:12px;height:12px;border-radius:3px;
  background:var(--brand);display:block;
}
.nav-links{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;
  padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink);
  transition:color .18s ease, background .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-links a:hover{color:var(--brand-deep);background:rgba(18,192,138,.07);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand-deep);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:var(--paper-2);
  display:grid;place-items:center;cursor:pointer;color:var(--ink);
  transition:border-color .18s ease, color .18s ease, transform .18s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-weight:700;font-size:15px;
  padding:12px 24px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .18s ease, color .18s ease, transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(18,192,138,.26);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:focus-visible,.icon-btn:focus-visible,a:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
.nav-cta{display:none;}
@media (min-width:1024px){.nav-cta{display:inline-flex;}}
.burger{display:grid;}
@media (min-width:1024px){.burger{display:none;}}

.search-panel{
  display:none;
  border-top:1px solid var(--line);
  background:var(--paper-2);
}
.search-panel.is-open{display:block;}
.search-panel form{display:flex;gap:10px;padding:14px 0;}
.search-panel input{
  flex:1;border:1px solid var(--line);border-radius:12px;
  padding:11px 14px;font-size:15px;background:var(--paper);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.search-panel input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(18,192,138,.14);
}

.drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--ink);
  color:#fff;
  display:flex;flex-direction:column;
  padding:24px 24px 32px;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.22,1,.36,1);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:#fff;}
.drawer-nav{margin-top:36px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.drawer-nav a{
  font-size:24px;font-weight:700;color:#fff;padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:20px;}
.close-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);background:transparent;color:#fff;
  display:grid;place-items:center;cursor:pointer;
}
.close-btn:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- Hero ---------- */
.hero{background:var(--paper);}
.hero-grid{display:grid;gap:40px;align-items:center;padding-top:48px;padding-bottom:64px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:55% 45%;gap:48px;padding-top:64px;padding-bottom:88px;}
}
.hero h1{
  font-size:clamp(2.15rem,4.8vw,3.9rem);
  font-weight:800;
  color:var(--ink);
}
.hero-sub{
  margin-top:20px;font-size:17px;color:var(--muted);max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.metrics{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 24px;margin-top:44px;
  border-top:1px solid var(--line);padding-top:26px;
}
@media (min-width:640px){.metrics{grid-template-columns:repeat(4,minmax(0,1fr));}}
.metric-num{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;color:var(--ink);letter-spacing:-0.02em;}
.metric-num em{font-style:normal;color:var(--brand);}
.metric-label{font-size:13px;color:var(--muted);margin-top:2px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:100%;max-height:520px;object-fit:cover;
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
}
.hero-tagline{
  position:absolute;left:22px;bottom:22px;
  background:rgba(14,21,18,.82);
  color:#fff;font-size:20px;font-weight:800;letter-spacing:-0.01em;
  padding:10px 18px;border-radius:999px;
}
.hero-chip{
  position:absolute;right:18px;top:18px;
  background:var(--accent);color:#3a2600;
  font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px;
}

/* ---------- 痛点 ---------- */
.pain-list{border-top:1px solid var(--line);margin-top:40px;}
.pain-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.pain-num{
  font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;color:var(--brand);
  line-height:1;min-width:56px;
}
.pain-title{font-size:1.1rem;font-weight:700;color:var(--ink);}
.pain-desc{color:var(--muted);font-size:15px;margin-top:6px;}

/* ---------- 解决方案 ---------- */
.solve-row{
  display:grid;gap:32px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line);
}
@media (min-width:1024px){
  .solve-row{grid-template-columns:5fr 7fr;gap:56px;padding:48px 0;}
  .solve-row.reverse{grid-template-columns:7fr 5fr;}
  .solve-row.reverse .solve-media{order:2;}
}
.solve-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  transition:transform .35s ease;
}
.solve-media{overflow:hidden;border-radius:var(--radius-m);}
.solve-row:hover .solve-media img{transform:scale(1.03);}
.solve-row h3{font-size:1.3rem;font-weight:700;color:var(--ink);}
.solve-row p{color:var(--muted);font-size:16px;margin-top:14px;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-deep);font-weight:700;font-size:15px;margin-top:18px;
  border-bottom:1px solid rgba(18,192,138,.35);
  padding-bottom:2px;
  transition:color .18s ease, border-color .18s ease;
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover{color:var(--brand);border-color:var(--brand);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 成果（深色） ---------- */
.results{
  background:var(--ink);
  color:#fff;
  border-radius:var(--radius-l);
  padding:48px 28px;
  position:relative;
  margin-top:-40px;
  box-shadow:var(--shadow-2);
}
@media (min-width:768px){.results{padding:64px 48px;}}
.results h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2rem);}
.results-desc{color:rgba(255,255,255,.66);margin-top:14px;max-width:620px;}
.results-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px 24px;margin-top:40px;
}
@media (min-width:1024px){.results-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.result-num{
  font-size:clamp(1.9rem,3.6vw,2.6rem);font-weight:800;color:var(--brand);
  letter-spacing:-0.02em;line-height:1.1;
}
.result-label{color:rgba(255,255,255,.72);font-size:14px;margin-top:6px;}

/* ---------- 证言 ---------- */
.quote-scroll{
  display:grid;gap:24px;margin-top:44px;
  grid-auto-flow:column;grid-auto-columns:minmax(280px,1fr);
  overflow-x:auto;padding-bottom:12px;
  scroll-snap-type:x mandatory;
}
@media (min-width:1024px){
  .quote-scroll{grid-auto-flow:row;grid-template-columns:repeat(3,1fr);overflow:visible;padding-bottom:0;}
}
.quote-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:26px;
  position:relative;
  scroll-snap-align:start;
  transition:transform .25s ease, border-color .25s ease;
}
.quote-card:hover{transform:translateY(-2px);border-color:rgba(18,192,138,.4);}
.quote-card::before{
  content:"“";
  position:absolute;left:20px;top:8px;
  font-size:52px;line-height:1;color:rgba(18,192,138,.2);
  font-weight:800;
}
.quote-text{color:var(--ink);font-size:15.5px;margin-top:22px;}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:22px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  background:rgba(18,192,138,.12);
  border:1px solid rgba(18,192,138,.3);
  display:grid;place-items:center;font-weight:700;color:var(--brand-deep);font-size:15px;
}
.quote-name{font-weight:700;font-size:15px;}
.quote-role{font-size:13px;color:var(--muted);}

/* ---------- CMS 列表 ---------- */
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;
}
.news-grid{
  display:grid;gap:24px;margin-top:40px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:24px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(18,192,138,.4);box-shadow:var(--shadow-2);}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.badge{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:700;color:var(--brand-deep);
  background:rgba(18,192,138,.1);
  border:1px solid rgba(18,192,138,.28);
  border-radius:999px;padding:3px 12px;
}
.badge-accent{color:#7a5200;background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.4);}
.news-date{font-size:13px;color:var(--muted);}
.news-title{font-size:1.15rem;font-weight:700;color:var(--ink);line-height:1.45;}
.news-title a:hover{color:var(--brand-deep);}
.news-summary{
  color:var(--muted);font-size:15px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  margin-top:40px;
  background:var(--paper-2);
  border:1px dashed var(--line);
  border-radius:var(--radius-m);
  padding:56px 24px;text-align:center;
}
.empty-state p{color:var(--muted);margin-top:14px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:40px auto 0;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-q:hover{color:var(--brand-deep);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--brand-deep);font-weight:700;font-size:16px;
  transition:transform .25s ease, border-color .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--brand);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
  background:var(--paper);
  border-radius:var(--radius-s);
}
.faq-a p{padding:0 18px;color:var(--muted);font-size:15.5px;}
.faq-item.is-open .faq-a p{padding:16px 18px;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(180deg, rgba(18,192,138,.1), rgba(18,192,138,.04));
  border:1px solid rgba(18,192,138,.22);
  border-radius:var(--radius-l);
  padding:56px 28px;text-align:center;
}
@media (min-width:768px){.cta-band{padding:72px 48px;}}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.4rem);}
.cta-band p{color:var(--muted);margin-top:16px;}
.cta-band .btn{margin-top:32px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.76);margin-top:88px;}
.footer-grid{
  display:grid;gap:36px;padding:64px 0 40px;
  grid-template-columns:1fr;
}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;}}
.footer-col h4{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.04em;}
.footer-col p,.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.footer-col a:hover{color:var(--brand);}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:#fff;}
.footer-logo .logo-mark{border-color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.22,1,.36,1), transform .42s cubic-bezier(.22,1,.36,1);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none !important;transition:none !important;}
  .solve-row:hover .solve-media img{transform:none;}
}

/* roulang page: article */
:root{
    --brand:#12C08A;
    --brand-deep:#0A8F66;
    --accent:#FFB020;
    --ink:#0E1512;
    --ink-soft:#1B241F;
    --paper:#F6F7F4;
    --paper-2:#FFFFFF;
    --line:#E3E6E0;
    --muted:#5B6660;
    --radius-s:8px;
    --radius-m:14px;
    --radius-l:22px;
    --shadow-1:0 1px 2px rgba(14,21,18,.05),0 8px 24px rgba(14,21,18,.06);
    --shadow-2:0 2px 6px rgba(14,21,18,.08),0 18px 44px rgba(14,21,18,.10);
    --font-cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    padding-top:64px;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input{font:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.02em;font-weight:700;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media (min-width:1280px){.wrap{max-width:1240px;}}
  @media (max-width:768px){.wrap{padding:0 20px;}}

  .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;}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:80;
    height:64px;
    background:rgba(246,247,244,.9);
    backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid transparent;
    transition:height .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;
  }
  .site-header.is-scrolled{
    height:56px;
    border-bottom-color:var(--line);
    box-shadow:0 6px 18px rgba(14,21,18,.05);
    background:rgba(246,247,244,.96);
  }
  .header-inner{display:flex;align-items:center;gap:28px;height:100%;}
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);flex:0 0 auto;}
  .logo-mark{
    width:26px;height:26px;flex:0 0 auto;
    border:2px solid var(--brand);
    border-radius:9px;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .logo-mark span{width:8px;height:8px;border-radius:2px;background:var(--brand);display:block;}
  .brand-name{letter-spacing:-.02em;}

  .nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
  .nav-links a{
    position:relative;
    font-size:15px;
    color:var(--muted);
    padding:6px 0;
    transition:color .18s ease;
  }
  .nav-links a::after{
    content:"";
    position:absolute;left:0;right:0;bottom:0;
    height:2px;border-radius:2px;
    background:var(--brand);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .18s ease;
  }
  .nav-links a:hover{color:var(--ink);}
  .nav-links a:hover::after{transform:scaleX(1);}
  .nav-links a.is-active{color:var(--ink);font-weight:600;}
  .nav-links a.is-active::after{transform:scaleX(1);}

  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .icon-btn{
    width:38px;height:38px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:12px;
    background:var(--paper-2);
    color:var(--ink);
    transition:border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .icon-btn:hover{border-color:rgba(18,192,138,.5);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-1);}
  .icon-btn svg{width:18px;height:18px;}

  .menu-btn{display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:12px;background:var(--paper-2);padding:9px;flex-direction:column;justify-content:space-between;}
  .menu-btn span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;
    padding:12px 24px;
    border-radius:999px;
    border:1.5px solid transparent;
    transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
    white-space:nowrap;
  }
  .btn-sm{padding:9px 18px;font-size:14px;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(18,192,138,.22);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(18,192,138,.28);}
  .btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
  .btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
  .btn-accent{background:var(--accent);color:#2A1A00;}
  .btn-accent:hover{background:#F0A114;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,176,32,.28);}

  .search-panel{
    position:absolute;top:100%;left:0;right:0;
    background:var(--paper-2);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-1);
    display:none;
    padding:16px 0 18px;
  }
  .search-panel.is-open{display:block;}
  .search-form{display:flex;gap:12px;}
  .search-form input{
    flex:1;
    padding:12px 16px;
    border:1px solid var(--line);
    border-radius:12px;
    background:var(--paper);
    color:var(--ink);
    transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .search-form input::placeholder{color:#98A29C;}
  .search-form input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(18,192,138,.14);}

  .mobile-drawer{
    position:fixed;inset:0;
    z-index:70;
    display:none;
    flex-direction:column;
    gap:8px;
    padding:96px 24px 32px;
    background:var(--paper);
    overflow-y:auto;
  }
  .mobile-drawer.is-open{display:flex;}
  .mobile-drawer a{
    font-size:24px;
    font-weight:700;
    letter-spacing:-.02em;
    padding:14px 0;
    border-bottom:1px solid var(--line);
    color:var(--ink);
  }
  .mobile-drawer a:hover{color:var(--brand-deep);}
  .mobile-drawer .drawer-cta{
    margin-top:24px;
    font-size:16px;
    font-weight:600;
    border-bottom:0;
    justify-content:center;
    color:#fff;
  }

  /* ---------- 页面头图 ---------- */
  .page-hero{
    position:relative;
    background:var(--ink);
    color:#fff;
    padding:64px 0 96px;
    overflow:hidden;
  }
  .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;}
  .hero-veil{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(14,21,18,.82) 0%,rgba(14,21,18,.9) 55%,rgba(14,21,18,.97) 100%);
  }
  .hero-inner{position:relative;z-index:2;max-width:900px;}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:26px;}
  .breadcrumb a{color:rgba(255,255,255,.8);transition:color .18s ease;}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:rgba(255,255,255,.35);}
  .breadcrumb .current{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;
    padding:6px 14px;
    border-radius:999px;
    border:1px solid rgba(18,192,138,.5);
    background:rgba(18,192,138,.14);
    color:#5FE3B6;
    margin-bottom:20px;
  }
  .page-hero h1{
    font-size:clamp(1.85rem,3.6vw,3rem);
    line-height:1.28;
    color:#fff;
    max-width:820px;
  }
  .article-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:12px;
    margin-top:22px;
    font-size:13px;
    color:rgba(255,255,255,.72);
  }
  .article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.35);}

  /* ---------- 正文 ---------- */
  .article-main{position:relative;z-index:3;margin-top:-56px;padding-bottom:8px;}
  .article-card{
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    box-shadow:var(--shadow-2);
    padding:48px 52px 42px;
    max-width:920px;
    margin:0 auto;
  }
  .article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.85;color:#1A221D;}
  .article-body > *:first-child{margin-top:0;}
  .article-body p{margin:0 0 1.15em;}
  .article-body h2{
    position:relative;
    font-size:20px;
    font-weight:700;
    margin:1.9em 0 .85em;
    padding-left:14px;
  }
  .article-body h2::before{
    content:"";
    position:absolute;left:0;top:.3em;bottom:.3em;
    width:4px;border-radius:2px;
    background:var(--brand);
  }
  .article-body h3{font-size:18px;font-weight:700;margin:1.6em 0 .6em;}
  .article-body h4{font-size:16px;font-weight:700;margin:1.4em 0 .5em;}
  .article-body ul{margin:0 0 1.15em;}
  .article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em;}
  .article-body ul li::before{
    content:"";position:absolute;left:2px;top:.66em;
    width:7px;height:7px;border-radius:2px;background:var(--brand);
  }
  .article-body ol{margin:0 0 1.15em;padding-left:1.4em;list-style:decimal;}
  .article-body ol li{margin-bottom:.5em;}
  .article-body blockquote{
    margin:1.5em 0;
    padding:16px 20px;
    background:var(--paper);
    border-left:4px solid var(--brand);
    border-radius:0 var(--radius-s) var(--radius-s) 0;
    color:#25302A;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:var(--radius-m);margin:1.5em 0 .7em;}
  .article-body figure{margin:1.5em 0;}
  .article-body figcaption{font-size:13px;color:var(--muted);text-align:center;}
  .article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px;}
  .article-body a:hover{color:var(--brand);}
  .article-body strong{font-weight:700;}
  .article-body code{
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:6px;
    padding:2px 6px;
    font-size:.92em;
  }
  .article-body pre{
    background:var(--ink);
    color:#E6F4EE;
    padding:18px 20px;
    border-radius:var(--radius-m);
    overflow-x:auto;
    font-size:14px;
    margin:1.5em 0;
  }
  .article-body pre code{background:none;border:0;padding:0;color:inherit;}
  .article-body table{
    width:100%;
    border-collapse:collapse;
    margin:1.5em 0;
    font-size:15px;
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--radius-s);
    overflow:hidden;
  }
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
  .article-body th{background:var(--paper);font-weight:600;}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

  .empty-state{max-width:600px;margin:0 auto;text-align:center;padding:20px 0 8px;}
  .empty-icon{
    width:56px;height:56px;margin:0 auto 20px;
    border:2px solid var(--brand);
    border-radius:18px;
    display:flex;align-items:center;justify-content:center;
    color:var(--brand);
  }
  .empty-icon svg{width:24px;height:24px;}
  .empty-state h2{font-size:20px;margin-bottom:12px;}
  .empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px;}

  .article-foot{
    max-width:760px;
    margin:36px auto 0;
    padding-top:26px;
    border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;}
  .tag{
    display:inline-flex;align-items:center;
    font-size:13px;
    padding:5px 13px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(18,192,138,.08);
    color:var(--brand-deep);
  }
  .foot-links{display:flex;flex-wrap:wrap;gap:22px;}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--ink);
    transition:color .18s ease;
  }
  .text-link span{transition:transform .18s ease;}
  .text-link:hover{color:var(--brand-deep);}
  .text-link:hover span{transform:translateX(4px);}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  .section-tight{padding:72px 0 0;}
  .section-head{max-width:720px;margin-bottom:40px;}
  .section-head h2{font-size:clamp(1.55rem,2.6vw,2.3rem);margin-bottom:14px;}
  .section-head p{color:var(--muted);font-size:16px;}

  .rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .rel-card{
    display:flex;flex-direction:column;
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--radius-m);
    box-shadow:var(--shadow-1);
    overflow:hidden;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,192,138,.4);}
  .rel-media{aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
  .rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .rel-card:hover .rel-media img{transform:scale(1.03);}
  .rel-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .rel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}
  .rel-body h3{font-size:1.15rem;}
  .rel-body p{font-size:14px;color:var(--muted);line-height:1.75;}
  .rel-body .text-link{margin-top:auto;font-size:14px;}

  .cta-band{
    background:var(--ink);
    color:#fff;
    border-radius:var(--radius-l);
    padding:70px 48px;
    text-align:center;
  }
  .cta-band h2{font-size:clamp(1.6rem,2.8vw,2.4rem);margin-bottom:16px;}
  .cta-band p{color:rgba(255,255,255,.72);font-size:16px;max-width:640px;margin:0 auto 30px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#C7D2CC;padding:72px 0 0;margin-top:24px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;}
  .footer-col p{font-size:14px;line-height:1.85;color:#9FAEA6;}
  .footer-col h4{font-size:13px;font-weight:600;color:var(--brand);margin-bottom:16px;}
  .footer-col ul li{margin-bottom:10px;font-size:14px;color:#9FAEA6;}
  .footer-col ul li a{color:#C7D2CC;transition:color .18s ease;}
  .footer-col ul li a:hover{color:var(--brand);}
  .footer-bottom{
    margin-top:56px;
    border-top:1px solid rgba(255,255,255,.12);
    padding:22px 0;
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:#8FA096;
  }

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.22,1,.36,1),transform .42s cubic-bezier(.22,1,.36,1);}
  .reveal.is-visible{opacity:1;transform:none;}

  @media (max-width:1024px){
    .nav-links{gap:18px;}
    .nav-links a{font-size:14px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .article-card{padding:40px 36px 34px;}
  }

  @media (max-width:768px){
    body{padding-top:60px;}
    .site-header{height:60px;}
    .site-header.is-scrolled{height:56px;}
    .nav-links{display:none;}
    .menu-btn{display:flex;}
    .header-actions .btn-sm{display:none;}
    .page-hero{padding:44px 0 84px;}
    .article-main{margin-top:-44px;}
    .article-card{padding:28px 20px 26px;border-radius:var(--radius-m);}
    .article-body{font-size:16px;}
    .article-body h2{font-size:18px;}
    .article-body h3{font-size:17px;}
    .section{padding:60px 0;}
    .rel-grid{grid-template-columns:1fr;}
    .cta-band{padding:44px 22px;border-radius:var(--radius-m);}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
    .article-foot{flex-direction:column;align-items:flex-start;}
    .search-form{flex-direction:column;}
  }

  @media (max-width:520px){
    .article-meta{font-size:12px;}
    .breadcrumb .current{white-space:normal;}
    .cta-band{padding:38px 18px;}
  }

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category1 */
:root{
  --brand:#12C08A;
  --brand-deep:#0A8F66;
  --accent:#FFB020;
  --ink:#0E1512;
  --ink-soft:#1B241F;
  --paper:#F6F7F4;
  --paper-2:#FFFFFF;
  --line:#E3E6E0;
  --muted:#5B6660;
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(14,21,18,.05),0 8px 24px rgba(14,21,18,.06);
  --shadow-2:0 2px 6px rgba(14,21,18,.08),0 18px 44px rgba(14,21,18,.10);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-0.02em;font-weight:700}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
::selection{background:rgba(18,192,138,.22)}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.wrap{max-width:1240px;padding-left:48px;padding-right:48px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,247,244,.86);
  -webkit-backdrop-filter:saturate(150%) blur(12px);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease), background .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(246,247,244,.95)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);white-space:nowrap}
.logo-mark{width:26px;height:26px;border:2px solid var(--brand);border-radius:8px;display:grid;place-items:center;flex:none}
.logo-mark span{width:10px;height:10px;background:var(--brand);border-radius:3px;display:block}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px;color:var(--muted)}
.nav-links a{position:relative;padding:6px 0;transition:color .18s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .18s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--ink);font-weight:700}
.nav-links a.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:38px;height:38px;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;color:var(--muted);background:var(--paper-2);transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
.icon-btn:hover{color:var(--ink);border-color:rgba(18,192,138,.5);transform:translateY(-1px)}
.burger{display:none;width:40px;height:38px;border-radius:var(--radius-s);border:1px solid var(--line);background:var(--paper-2);place-items:center}
.burger span{display:block;width:16px;height:2px;background:var(--ink);margin:2.5px auto;border-radius:2px;transition:transform .25s var(--ease),opacity .2s}
.burger.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.search-panel{position:absolute;left:0;right:0;top:100%;background:var(--paper-2);border-bottom:1px solid var(--line);box-shadow:var(--shadow-1);display:none}
.search-panel.is-open{display:block}
.search-panel .wrap{display:flex;gap:12px;align-items:center;padding-top:14px;padding-bottom:14px}
.search-panel input{flex:1;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--paper);padding:0 14px;font-size:15px;color:var(--ink)}
.search-panel input::placeholder{color:var(--muted)}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,192,138,.14)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:12px 24px;border-radius:999px;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(18,192,138,.22)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-outline-light{border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-deep);font-size:15px}
.link-arrow span{transition:transform .18s var(--ease)}
.link-arrow:hover span{transform:translateX(4px)}
.link-arrow::after{content:"";display:block;position:absolute}
.link-arrow{position:relative}
.link-arrow::before{content:"";position:absolute;left:0;bottom:-2px;height:1.5px;width:0;background:var(--brand);transition:width .18s var(--ease)}
.link-arrow:hover::before{width:100%}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px;border:1px solid rgba(18,192,138,.35);background:rgba(18,192,138,.08);color:var(--brand-deep)}
.badge-amber{border-color:rgba(255,176,32,.45);background:rgba(255,176,32,.12);color:#8a5b00}
.badge-plain{border-color:var(--line);background:var(--paper);color:var(--muted);font-weight:500}

/* ---------- page hero ---------- */
.page-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:56px 0 76px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(14,21,18,.96) 0%,rgba(14,21,18,.78) 48%,rgba(14,21,18,.45) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
.page-hero .wrap{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.page-hero h1{font-size:clamp(1.85rem,4.1vw,3.15rem);color:#fff;max-width:820px}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.page-hero .lede{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}

/* ---------- stat strip ---------- */
.stat-strip{margin-top:-46px;position:relative;z-index:5}
.stat-strip-inner{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-2);display:grid;grid-template-columns:repeat(2,1fr);gap:1px;overflow:hidden}
@media (min-width:768px){.stat-strip-inner{grid-template-columns:repeat(4,1fr)}}
.stat-item{padding:26px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (min-width:768px){.stat-item{border-bottom:0}.stat-item:last-child{border-right:0}}
.stat-num{font-size:34px;font-weight:800;color:var(--brand-deep);line-height:1.1;letter-spacing:-0.03em}
.stat-num small{font-size:15px;font-weight:700;color:var(--muted);margin-left:4px;letter-spacing:0}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- section base ---------- */
.section{padding:72px 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.55rem,2.6vw,2.3rem);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.08em;margin-bottom:12px}

/* ---------- aside layout ---------- */
.layout-aside{display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
@media (min-width:1024px){.layout-aside{grid-template-columns:240px minmax(0,1fr);gap:56px}}
.anchor-nav{position:static;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:18px 18px 20px}
@media (min-width:1024px){.anchor-nav{position:sticky;top:96px;padding:22px 20px}}
.anchor-nav h2{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em;margin-bottom:14px}
.anchor-nav ul{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.anchor-nav ul::-webkit-scrollbar{display:none}
@media (min-width:1024px){.anchor-nav ul{display:block;overflow:visible}}
.anchor-nav li{margin-bottom:0}
@media (min-width:1024px){.anchor-nav li{margin-bottom:6px}}
.anchor-nav a{display:block;white-space:nowrap;font-size:14.5px;color:var(--muted);padding:8px 12px;border-radius:var(--radius-s);border-left:2px solid transparent;transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease)}
.anchor-nav a:hover{color:var(--ink);background:var(--paper)}
.anchor-nav a.is-current{color:var(--brand-deep);font-weight:700;border-left-color:var(--brand);background:rgba(18,192,138,.08)}
.anchor-tip{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted);line-height:1.7}

.content-col{min-width:0}
.doc-block{padding:32px 0;border-bottom:1px solid var(--line)}
.doc-block:first-child{padding-top:0}
.doc-block:last-child{border-bottom:0;padding-bottom:0}
.doc-block h2{font-size:clamp(1.35rem,2.1vw,1.75rem);margin-bottom:16px;position:relative;padding-left:16px}
.doc-block h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand)}
.doc-block p{color:#2b352f}
.split{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;margin-top:26px}
@media (min-width:900px){
  .split{grid-template-columns:5fr 7fr;gap:44px}
  .split--rev{grid-template-columns:7fr 5fr}
  .split--rev .split-media{grid-column:1;grid-row:1}
  .split--rev .split-text{grid-column:2;grid-row:1}
}
.split-media{border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--paper-2)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.split-media:hover img{transform:scale(1.03)}
.split-text p{color:#2b352f}
.split-text .link-arrow{margin-top:6px}
.inline-list{margin:18px 0 20px;display:grid;gap:10px}
.inline-list li{position:relative;padding-left:20px;font-size:15.5px;color:#2b352f}
.inline-list li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;background:var(--brand);opacity:.85}
.kv-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:22px}
@media (min-width:640px){.kv-grid{grid-template-columns:repeat(2,1fr)}}
.kv-item{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:18px 20px;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.kv-item:hover{border-color:rgba(18,192,138,.45);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.kv-item strong{display:block;font-size:15.5px;margin-bottom:6px}
.kv-item span{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- scenario cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:26px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);display:flex;flex-direction:column}
.card:hover{transform:translateY(-2px);border-color:rgba(18,192,138,.45);box-shadow:var(--shadow-2)}
.card-icon{width:44px;height:44px;border-radius:12px;border:1.5px solid rgba(18,192,138,.55);display:grid;place-items:center;color:var(--brand-deep);margin-bottom:18px;font-weight:800;font-size:15px}
.card h3{font-size:17.5px;margin-bottom:10px}
.card p{font-size:15.5px;color:var(--muted);line-height:1.78}
.card .card-foot{margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- steps ---------- */
.steps{position:relative;display:grid;gap:26px;grid-template-columns:1fr;counter-reset:step}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);gap:32px}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{position:relative;padding-top:26px;border-top:2px solid var(--line)}
.step::before{content:"";position:absolute;top:-2px;left:0;width:46px;height:2px;background:var(--brand)}
.step-num{font-size:13px;font-weight:800;color:var(--brand-deep);letter-spacing:.08em}
.step h3{font-size:17px;margin:10px 0 10px}
.step p{font-size:15px;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;text-align:left;padding:22px 0;font-size:17px;font-weight:700;color:var(--ink);transition:color .18s var(--ease)}
.faq-q:hover{color:var(--brand-deep)}
.faq-sign{flex:none;width:24px;height:24px;position:relative;margin-top:3px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.faq-sign::before{left:0;top:11px;width:24px;height:2px}
.faq-sign::after{left:11px;top:0;width:2px;height:24px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0}
.faq-a{display:none;background:var(--paper);border-radius:var(--radius-s);padding:16px 18px;margin-bottom:22px}
.faq-item.is-open .faq-a{display:block}
.faq-a p{font-size:15.5px;color:#333d37;margin:0}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;border-radius:var(--radius-l);padding:44px 28px;position:relative;overflow:hidden}
@media (min-width:768px){.cta-band{padding:56px 48px}}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(18,192,138,.28),transparent 70%)}
.cta-band h2{color:#fff;font-size:clamp(1.45rem,2.5vw,2.05rem);max-width:640px;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.78);max-width:560px;margin-top:14px;position:relative;z-index:1}
.cta-band .hero-actions{position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}}
.footer-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#fff}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.85;max-width:320px}
.footer-col h4{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px;font-size:14px}
.footer-col ul li a{color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-col ul li a:hover{color:var(--brand)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55)}

/* ---------- motion ---------- */
html.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
html.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js .reveal{opacity:1;transform:none;transition:none}
  .btn:hover,.card:hover,.kv-item:hover,.icon-btn:hover{transform:none}
  .split-media:hover img{transform:none}
}

/* ---------- mobile nav drawer ---------- */
@media (max-width:1023px){
  .nav-links{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    background:var(--paper);
    flex-direction:column;align-items:flex-start;gap:4px;
    padding:28px 24px 40px;
    font-size:22px;font-weight:700;
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
    border-top:1px solid var(--line);
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none}
  .nav-links a{padding:14px 0;width:100%;color:var(--ink)}
  .nav-links a::after{bottom:8px}
  .nav-links .drawer-cta{margin-top:24px;width:100%}
  .burger{display:grid}
  .header-actions .btn-primary{display:none}
}
@media (min-width:1024px){
  .nav-links .drawer-cta{display:none}
}
@media (max-width:420px){
  .brand{font-size:16px}
  .header-inner{gap:12px}
}

/* roulang page: category2 */
:root{
    --brand:#12C08A;
    --brand-deep:#0A8F66;
    --accent:#FFB020;
    --ink:#0E1512;
    --ink-soft:#1B241F;
    --paper:#F6F7F4;
    --paper-2:#FFFFFF;
    --line:#E3E6E0;
    --muted:#5B6660;
    --radius-s:8px;
    --radius-m:14px;
    --radius-l:22px;
    --shadow-1:0 1px 2px rgba(14,21,18,.05),0 8px 24px rgba(14,21,18,.06);
    --shadow-2:0 2px 6px rgba(14,21,18,.08),0 18px 44px rgba(14,21,18,.10);
    --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  a{color:var(--brand-deep);text-decoration:none;}
  a:hover{color:var(--brand);}
  img{max-width:100%;display:block;height:auto;}
  button,input{font:inherit;color:inherit;}
  button{background:none;border:0;cursor:pointer;}
  svg{display:block;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.wrap{padding:0 32px;}}
  @media (min-width:1280px){.wrap{max-width:1240px;padding:0 48px;}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(246,247,244,.92);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:border-color .22s ease,box-shadow .22s ease;
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 22px rgba(14,21,18,.05);}
  .header-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height .22s ease;}
  .site-header.is-scrolled .header-inner{height:56px;}

  .brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:-.01em;flex-shrink:0;}
  .brand:hover{color:var(--ink);}
  .logo-mark{width:26px;height:26px;border-radius:8px;border:2px solid var(--brand);display:grid;place-items:center;flex-shrink:0;}
  .logo-mark span{width:10px;height:10px;border-radius:3px;background:var(--brand);display:block;}

  .nav-links{display:flex;align-items:center;gap:26px;font-size:15px;}
  .nav-links a{position:relative;color:var(--muted);padding:6px 0;transition:color .18s ease;}
  .nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .18s ease;}
  .nav-links a:hover{color:var(--ink);}
  .nav-links a:hover::after{width:100%;}
  .nav-links a.is-active{color:var(--ink);font-weight:600;}
  .nav-links a.is-active::after{width:100%;}

  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .icon-btn{
    width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
    background:var(--paper-2);display:grid;place-items:center;color:var(--ink);
    transition:border-color .18s ease,color .18s ease,transform .18s ease;
  }
  .icon-btn:hover{border-color:var(--brand);color:var(--brand-deep);}
  .icon-btn:active{transform:scale(.96);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;font-weight:600;font-size:15px;line-height:1;
    padding:14px 26px;border:1.5px solid transparent;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(18,192,138,.22);}
  .btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
  .btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
  .btn-light{border-color:rgba(255,255,255,.5);color:#fff;}
  .btn-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px);}
  .btn-sm{padding:11px 20px;font-size:14px;}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand-deep);}
  .link-arrow svg{transition:transform .18s ease;}
  .link-arrow:hover svg{transform:translateX(4px);}

  .menu-btn{display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--paper-2);place-items:center;}
  .menu-btn:hover{border-color:var(--brand);}
  .menu-btn span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;margin:3px auto;}

  .search-panel{
    border-top:1px solid var(--line);background:var(--paper-2);
    padding:18px 0 20px;
  }
  .search-panel[hidden]{display:none;}
  .search-form{display:flex;gap:12px;flex-wrap:wrap;}
  .search-form input{
    flex:1;min-width:220px;border:1px solid var(--line);border-radius:12px;
    padding:13px 16px;font-size:15px;background:var(--paper);transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,192,138,.14);}
  .search-hint{margin-top:10px;font-size:13px;color:var(--muted);}

  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--paper);
    display:flex;flex-direction:column;padding:20px;
  }
  .drawer[hidden]{display:none;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
  .drawer-nav{display:flex;flex-direction:column;gap:6px;padding:26px 4px;flex:1;}
  .drawer-nav a{font-size:22px;font-weight:600;color:var(--ink);padding:12px 0;border-bottom:1px solid var(--line);}
  .drawer-nav a.is-active{color:var(--brand-deep);}
  .drawer-foot{padding-top:18px;border-top:1px solid var(--line);}
  .drawer-foot .btn{width:100%;}

  @media (max-width:1023px){
    .nav-links{display:none;}
    .menu-btn{display:grid;}
    .header-actions .btn{display:none;}
  }

  /* ---------- 首屏 ---------- */
  .page-hero{
    position:relative;color:#fff;
    background-color:var(--ink);
    background-image:
      linear-gradient(100deg,rgba(14,21,18,.95) 0%,rgba(14,21,18,.82) 48%,rgba(14,21,18,.55) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    padding:56px 0 72px;
  }
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:26px;flex-wrap:wrap;}
  .breadcrumb a{color:rgba(255,255,255,.62);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:rgba(255,255,255,.34);}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
    color:#9CF0D2;background:rgba(18,192,138,.16);border:1px solid rgba(18,192,138,.4);
    padding:6px 14px;border-radius:999px;margin-bottom:20px;
  }
  .page-hero h1{
    font-size:clamp(1.9rem,3.9vw,3.05rem);
    font-weight:800;line-height:1.25;letter-spacing:-.02em;max-width:760px;
  }
  .page-lead{max-width:640px;margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.8);}
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;}
  .hero-stats{display:flex;gap:40px;flex-wrap:wrap;margin-top:46px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);}
  .hero-stats div{min-width:110px;}
  .hero-stats strong{display:block;font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.02em;}
  .hero-stats span{font-size:13px;color:rgba(255,255,255,.66);}

  /* ---------- 通用区块 ---------- */
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  @media (max-width:1023px){.section{padding:72px 0;}.section-tight{padding:56px 0;}}
  @media (max-width:767px){.section{padding:56px 0;}.section-tight{padding:44px 0;}}

  .sec-head{max-width:720px;margin-bottom:40px;}
  .sec-label{display:inline-block;font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.02em;margin-bottom:12px;}
  .sec-head h2{font-size:clamp(1.55rem,2.6vw,2.3rem);font-weight:800;line-height:1.3;letter-spacing:-.02em;}
  .sec-head p{margin-top:14px;color:var(--muted);font-size:16.5px;}

  /* ---------- 筛选标签 ---------- */
  .filters{display:flex;gap:10px;margin-bottom:36px;}
  @media (max-width:767px){
    .filters{overflow-x:auto;flex-wrap:nowrap;padding-bottom:8px;-webkit-overflow-scrolling:touch;}
    .filters::-webkit-scrollbar{height:4px;}
    .filters::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px;}
  }
  .chip{
    flex:0 0 auto;padding:9px 20px;border-radius:999px;border:1px solid var(--line);
    background:var(--paper-2);font-size:14px;color:var(--muted);
    transition:border-color .18s ease,color .18s ease,background-color .18s ease;
  }
  .chip:hover{border-color:var(--brand);color:var(--brand-deep);}
  .chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

  /* ---------- 功能卡 ---------- */
  .feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  @media (max-width:1023px){.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (max-width:640px){.feature-grid{grid-template-columns:1fr;}}

  .feature-card{
    background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);
    padding:26px;box-shadow:var(--shadow-1);
    display:flex;flex-direction:column;gap:14px;
    transition:transform .22s cubic-bezier(.22,1,.36,1),border-color .22s ease,box-shadow .22s ease;
  }
  .feature-card:hover{transform:translateY(-2px);border-color:rgba(18,192,138,.4);box-shadow:var(--shadow-2);}
  .feature-card[hidden]{display:none;}
  .icon-box{
    width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
    background:rgba(18,192,138,.1);border:1px solid rgba(18,192,138,.28);color:var(--brand-deep);
  }
  .feature-card h3{font-size:1.15rem;font-weight:700;letter-spacing:-.01em;}
  .feature-card p{font-size:15px;color:var(--muted);line-height:1.75;}
  .feature-card .link-arrow{margin-top:auto;}

  /* ---------- 图文交替 ---------- */
  .split{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;}
  .split.reverse{grid-template-columns:7fr 5fr;}
  .split + .split{margin-top:80px;}
  @media (max-width:1023px){
    .split,.split.reverse{grid-template-columns:1fr;gap:30px;}
    .split + .split{margin-top:56px;}
  }
  .split-media{border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--paper-2);}
  .split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s cubic-bezier(.22,1,.36,1);}
  .split-media:hover img{transform:scale(1.03);}
  .split-body h3{font-size:1.3rem;font-weight:700;letter-spacing:-.01em;margin-bottom:14px;}
  .split-body p{color:var(--muted);font-size:16.5px;}
  .split-body p + p{margin-top:14px;}
  .split-points{margin:20px 0 22px;display:flex;flex-direction:column;gap:10px;}
  .split-points li{display:flex;gap:10px;font-size:15.5px;color:var(--ink);}
  .split-points li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand);flex-shrink:0;margin-top:11px;}

  /* ---------- 深色数据带 ---------- */
  .band-dark{background:var(--ink);color:#fff;padding:76px 0;}
  .band-dark .sec-head p{color:rgba(255,255,255,.66);}
  .band-dark .sec-label{color:var(--brand);}
  .stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;margin-top:36px;}
  @media (max-width:1023px){.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (max-width:520px){.stats-grid{grid-template-columns:1fr;gap:22px;}}
  .stat{padding:22px 0;border-top:1px solid rgba(255,255,255,.16);}
  .stat strong{display:block;font-size:clamp(2rem,3vw,2.6rem);font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.1;}
  .stat span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.66);}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:860px;margin:0 auto;}
  .faq-list details{border-bottom:1px solid var(--line);}
  .faq-list details:first-child{border-top:1px solid var(--line);}
  .faq-list summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 0;font-size:17px;font-weight:700;line-height:1.6;
  }
  .faq-list summary::-webkit-details-marker{display:none;}
  .faq-list summary::after{
    content:"+";flex-shrink:0;width:28px;height:28px;border-radius:999px;
    display:grid;place-items:center;font-size:18px;font-weight:600;color:var(--brand-deep);
    background:rgba(18,192,138,.1);border:1px solid rgba(18,192,138,.28);
    transition:transform .22s ease;
  }
  .faq-list details[open] summary::after{transform:rotate(45deg);}
  .faq-answer{padding:0 0 24px;color:var(--muted);font-size:16px;line-height:1.85;background:transparent;max-width:720px;}

  /* ---------- CTA ---------- */
  .cta-band{
    background:linear-gradient(180deg,rgba(18,192,138,.12),rgba(18,192,138,.04));
    border:1px solid rgba(18,192,138,.26);border-radius:var(--radius-l);
    padding:56px 40px;text-align:center;
  }
  @media (max-width:767px){.cta-band{padding:40px 22px;}}
  .cta-band h2{font-size:clamp(1.55rem,2.8vw,2.3rem);font-weight:800;letter-spacing:-.02em;line-height:1.3;}
  .cta-band p{margin:16px auto 28px;max-width:600px;color:var(--muted);font-size:16.5px;}
  .cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 30px;margin-top:96px;}
  @media (max-width:767px){.site-footer{padding:52px 0 26px;margin-top:64px;}}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
  @media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
  @media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}
  .footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;}
  .footer-col h4{font-size:13px;font-weight:700;color:var(--brand);margin-bottom:18px;letter-spacing:.02em;}
  .footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
  .footer-col ul{display:flex;flex-direction:column;gap:12px;}
  .footer-col ul li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.62);}
  .footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
  .footer-col a:hover{color:var(--brand);}
  .footer-bottom{
    margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.5);
  }

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.22,1,.36,1),transform .42s cubic-bezier(.22,1,.36,1);}
  .reveal.is-visible{opacity:1;transform:none;}
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category4 */
:root{
  --brand:#12C08A;
  --brand-deep:#0A8F66;
  --accent:#FFB020;
  --ink:#0E1512;
  --ink-soft:#1B241F;
  --paper:#F6F7F4;
  --paper-2:#FFFFFF;
  --line:#E3E6E0;
  --muted:#5B6660;
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(14,21,18,.05),0 8px 24px rgba(14,21,18,.06);
  --shadow-2:0 2px 6px rgba(14,21,18,.08),0 18px 44px rgba(14,21,18,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(18,192,138,.24)}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1280px){.wrap{max-width:1240px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,247,244,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(14,21,18,.03)}
.header-inner{display:flex;align-items:center;gap:34px;height:64px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap;color:var(--ink)}
.logo-mark{width:22px;height:22px;border:2px solid var(--brand);border-radius:7px;display:inline-flex;align-items:center;justify-content:center;flex:none}
.logo-mark span{display:block;width:7px;height:7px;border-radius:2px;background:var(--brand)}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px}
.nav-links a{position:relative;padding:4px 0;color:var(--muted);transition:color .18s ease}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);border-radius:2px;transition:width .18s ease}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{width:100%}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--paper-2);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-soft);transition:border-color .18s ease,color .18s ease,transform .18s ease,background .18s ease}
.icon-btn:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px;display:block}
.menu-btn{display:none}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:999px;text-align:center;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-primary{background:var(--brand);color:#fff;padding:11px 22px;font-size:15px;box-shadow:0 6px 18px rgba(18,192,138,.22)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);padding:10px 20px;font-size:15px;background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);padding:12px 26px;font-size:15.5px}
.btn-light:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-outline-light{border:1.5px solid rgba(255,255,255,.45);color:#fff;padding:11px 24px;font-size:15.5px}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:600;font-size:15px}
.btn-text .arw{transition:transform .18s ease}
.btn-text:hover .arw{transform:translateX(4px)}

/* 搜索面板 */
.search-panel{position:fixed;left:0;right:0;top:64px;z-index:55;background:var(--paper-2);border-bottom:1px solid var(--line);padding:18px 0;opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;box-shadow:var(--shadow-1)}
.site-header.is-scrolled ~ .search-panel{top:56px}
.search-panel.is-open{opacity:1;visibility:visible;transform:none}
.search-form{display:flex;gap:12px}
.search-form input{flex:1;min-width:0;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:var(--paper);transition:border-color .18s ease,box-shadow .18s ease}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,192,138,.12)}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:80;background:var(--paper);padding:20px 24px 32px;display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .22s ease,transform .22s ease,visibility .22s ease}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:48px}
.drawer-links{margin-top:22px;display:flex;flex-direction:column}
.drawer-links a{padding:16px 0;font-size:1.32rem;font-weight:700;border-bottom:1px solid var(--line);color:var(--ink)}
.drawer-links a.is-active{color:var(--brand-deep)}
.drawer-cta{margin-top:auto;width:100%;padding:16px}
body.drawer-open{overflow:hidden}

/* ============ 页头 ============ */
.page-head{padding:70px 0 54px}
.head-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;background:rgba(18,192,138,.1);border:1px solid rgba(18,192,138,.28);color:var(--brand-deep);font-size:13px;font-weight:600;line-height:1.6}
.page-head h1{margin-top:18px;font-size:clamp(1.95rem,4vw,2.9rem);line-height:1.18;font-weight:800;letter-spacing:-.02em}
.head-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:620px}
.chips{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;padding:7px 15px;border:1px solid var(--line);border-radius:999px;background:var(--paper-2);font-size:14px;color:var(--ink-soft);transition:border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}
.chip:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.head-media{border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:4/3;background:var(--ink)}
.head-media img{width:100%;height:100%;object-fit:cover}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--white{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;letter-spacing:-.02em;line-height:1.28}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* 自查三步 */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:26px;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.check-card:hover{transform:translateY(-2px);border-color:rgba(18,192,138,.4);box-shadow:var(--shadow-2)}
.check-num{font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.06em}
.check-card h3{margin-top:12px;font-size:1.18rem;font-weight:700;line-height:1.45}
.check-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.faq-group{margin-bottom:46px}
.faq-group h3{display:flex;align-items:center;gap:10px;font-size:1.06rem;font-weight:800;margin-bottom:10px;letter-spacing:-.01em}
.faq-group h3::before{content:"";width:16px;height:2px;border-radius:2px;background:var(--brand);flex:none}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:20px 0;font-size:16.5px;font-weight:700;line-height:1.6;cursor:pointer;list-style:none;color:var(--ink);transition:color .18s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-deep)}
.faq-mark{position:relative;flex:none;width:18px;height:18px;margin-top:5px;transition:transform .22s ease}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-mark::before{left:0;top:8px;width:18px;height:2px}
.faq-mark::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-mark{transform:rotate(45deg)}
.faq-body{padding:0 0 22px}
.faq-body p{background:var(--paper);border-left:3px solid rgba(18,192,138,.5);border-radius:12px;padding:16px 18px;font-size:15.5px;line-height:1.85;color:var(--muted)}

/* 入口卡片 */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry-card{display:flex;flex-direction:column;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(18,192,138,.4);box-shadow:var(--shadow-2)}
.entry-card .thumb{overflow:hidden;aspect-ratio:16/9;background:var(--paper)}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.entry-card:hover .thumb img{transform:scale(1.03)}
.entry-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-body h3{font-size:1.15rem;font-weight:700;line-height:1.5}
.entry-body p{font-size:15px;line-height:1.8;color:var(--muted)}
.entry-body .btn-text{margin-top:auto}

/* 反馈表单 */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.contact-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--muted);line-height:1.8}
.contact-list li:last-child{border-bottom:0}
.contact-list .dot{flex:none;width:8px;height:8px;border-radius:50%;background:var(--brand);margin-top:10px}
.form-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:30px;box-shadow:var(--shadow-1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.form-field input,.form-field textarea,.form-field select{width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:var(--paper-2);transition:border-color .18s ease,box-shadow .18s ease;font-size:15px}
.form-field textarea{min-height:120px;resize:vertical;line-height:1.75}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,192,138,.12)}
.form-note{margin-top:14px;font-size:13px;color:var(--brand-deep);min-height:20px}
.form-tip{font-size:13px;color:var(--muted);margin-top:10px}

/* CTA */
.cta-band{background:var(--ink);color:#fff;padding:88px 0;text-align:center}
.cta-band h2{font-size:clamp(1.7rem,3.2vw,2.5rem);font-weight:800;line-height:1.25;letter-spacing:-.02em}
.cta-band p{margin-top:16px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:640px;margin-left:auto;margin-right:auto}
.cta-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff}
.footer-logo .logo-mark{border-color:var(--brand)}
.footer-col h4{color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.02em;margin:0 0 16px}
.footer-col ul li{margin-bottom:12px;font-size:14px;line-height:1.75}
.footer-col a{transition:color .18s ease}
.footer-col a:hover{color:var(--brand)}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* 动效 */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.22,1,.36,1),transform .42s cubic-bezier(.22,1,.36,1)}
[data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .head-grid{gap:36px}
  .faq-grid{gap:0 40px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .header-actions .btn-primary{display:none}
  .menu-btn{display:inline-flex}
  .head-grid{grid-template-columns:1fr;gap:32px}
  .head-media{aspect-ratio:16/10}
  .check-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .entry-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-panel{top:64px}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .page-head{padding:44px 0 36px}
  .entry-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .cta-band{padding:64px 0}
  .form-card{padding:22px}
  .footer-bottom{margin-top:40px}
}

/* roulang page: category3 */
:root{
  --brand:#12C08A;
  --brand-deep:#0A8F66;
  --accent:#FFB020;
  --ink:#0E1512;
  --ink-soft:#1B241F;
  --paper:#F6F7F4;
  --paper-2:#FFFFFF;
  --line:#E3E6E0;
  --muted:#5B6660;
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(14,21,18,.05),0 8px 24px rgba(14,21,18,.06);
  --shadow-2:0 2px 6px rgba(14,21,18,.08),0 18px 44px rgba(14,21,18,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-0.02em;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

/* ---------- 容器 ---------- */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){ .wrap{padding:0 32px} }
@media (min-width:1280px){ .wrap{max-width:1240px;padding:0 48px} }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(246,247,244,.88);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .24s ease,background .24s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(14,21,18,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:68px;
  transition:min-height .24s ease;
}
.site-header.is-scrolled .header-inner{min-height:58px}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:28px;height:28px;
  border-radius:9px;
  border:2px solid var(--brand);
  display:inline-grid;
  place-items:center;
  flex:none;
}
.logo-mark span{
  width:9px;height:9px;border-radius:3px;background:var(--brand);display:block;
}
.brand-text{font-weight:700;font-size:17px;color:var(--ink);letter-spacing:-0.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;
  padding:6px 0;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  transition:color .18s ease;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;
  display:inline-grid;place-items:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--paper-2);
  color:var(--ink);
  cursor:pointer;
  transition:border-color .18s ease,transform .18s ease,color .18s ease;
}
.icon-btn:hover{border-color:rgba(18,192,138,.5);color:var(--brand-deep);transform:translateY(-2px)}
.icon-btn svg{width:17px;height:17px}

/* 搜索面板 */
.search-panel{
  border-top:1px solid var(--line);
  background:var(--paper-2);
  overflow:hidden;
  max-height:0;
  transition:max-height .3s ease;
}
.search-panel.is-open{max-height:220px}
.search-form{padding:22px 0 26px}
.search-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.search-row{display:flex;gap:12px}
.search-row input{
  flex:1;
  min-width:0;
  padding:12px 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--paper);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-row input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(18,192,138,.14);
  background:var(--paper-2);
}

/* 汉堡与移动抽屉 */
.hamburger{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--paper-2);
  cursor:pointer;
  padding:0;
  place-items:center;
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  margin:3px auto;
  border-radius:2px;
  background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--paper);
  padding:22px 22px 28px;
  display:flex;
  flex-direction:column;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-12px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--paper-2);
  font-size:20px;
  line-height:1;
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.drawer-nav a{
  font-size:22px;
  font-weight:700;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.drawer-nav a.is-active{color:var(--brand-deep)}
.drawer-cta{margin-top:auto;justify-content:center}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:var(--paper-2);color:var(--ink);border-color:var(--line)}
.btn-light:hover{border-color:rgba(18,192,138,.55);color:var(--brand-deep);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--brand-deep);
  font-size:15px;
}
.btn-link svg{width:15px;height:15px;transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 13px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-deep);
  background:rgba(18,192,138,.09);
  border:1px solid rgba(18,192,138,.22);
  line-height:1.6;
}
.badge-amber{
  color:#8a5b00;
  background:rgba(255,176,32,.13);
  border-color:rgba(255,176,32,.35);
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--brand-deep);
  letter-spacing:.02em;
  margin-bottom:12px;
}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(18,192,138,.10),transparent 62%),
    var(--paper);
  padding:56px 0 68px;
  border-bottom:1px solid var(--line);
}
.page-hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:44px;
  align-items:center;
}
.breadcrumb{
  font-size:14px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb span.sep{margin:0 8px;color:#b9c0ba}
.page-hero h1{
  font-size:clamp(1.85rem,3.9vw,3.05rem);
  margin:16px 0 18px;
  max-width:20ch;
}
.page-hero .lead{
  font-size:17px;
  color:var(--muted);
  max-width:46ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:14px 36px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-facts li{display:flex;flex-direction:column;gap:2px}
.hero-facts .num{font-size:24px;font-weight:800;color:var(--ink);line-height:1.2}
.hero-facts .lab{font-size:13px;color:var(--muted)}
.page-hero-media{position:relative}
.page-hero-media img{
  width:100%;
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
  object-fit:cover;
}
.media-tag{
  position:absolute;
  left:18px;
  bottom:18px;
  padding:9px 18px;
  border-radius:999px;
  background:rgba(14,21,18,.82);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
}
@media (min-width:1024px){
  .page-hero{padding:64px 0 88px}
  .page-hero-grid{grid-template-columns:1.05fr .95fr;gap:64px}
}

/* ---------- 区块通用 ---------- */
.section{padding:64px 0}
@media (min-width:768px){ .section{padding:76px 0} }
@media (min-width:1024px){ .section{padding:96px 0} }
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:16px}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 准备卡片 ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:768px){ .prep-grid{grid-template-columns:repeat(3,1fr)} }
.prep-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.prep-card:hover{transform:translateY(-3px);border-color:rgba(18,192,138,.45);box-shadow:var(--shadow-2)}
.prep-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(18,192,138,.10);
  color:var(--brand-deep);
  border:1px solid rgba(18,192,138,.24);
  margin-bottom:18px;
}
.prep-icon svg{width:20px;height:20px}
.prep-card h3{font-size:1.12rem;margin-bottom:10px}
.prep-card p{color:var(--muted);font-size:15px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:56px;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;
  left:17px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(to bottom,rgba(18,192,138,.55),rgba(18,192,138,.12));
}
.timeline-item{position:relative;padding-bottom:44px}
.timeline-item:last-child{padding-bottom:0}
.timeline-index{
  position:absolute;
  left:-56px;top:0;
  width:36px;height:36px;
  border-radius:50%;
  background:var(--paper-2);
  border:2px solid var(--brand);
  color:var(--brand-deep);
  font-size:12.5px;
  font-weight:800;
  display:grid;
  place-items:center;
  letter-spacing:.02em;
}
.timeline-body{max-width:720px}
.timeline-body h3{font-size:1.2rem;margin-bottom:12px}
.timeline-body p{color:var(--muted);font-size:16px}
.timeline-body p + p{margin-top:.9em}
.tick-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.tick-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--muted);
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand);
  opacity:.75;
}
.timeline-figure{
  margin:22px 0 0;
  max-width:600px;
  border-radius:var(--radius-m);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  background:var(--paper-2);
}
.timeline-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.timeline-figure:hover img{transform:scale(1.03)}
.timeline-figure figcaption{
  padding:12px 16px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--line);
}
@media (max-width:768px){
  .timeline{padding-left:46px}
  .timeline::before{left:14px}
  .timeline-index{left:-46px;width:30px;height:30px;font-size:11px}
  .timeline-item{padding-bottom:38px}
}

/* ---------- 速查清单 ---------- */
.spec-list{border-top:1px solid var(--line)}
.spec-row{
  display:grid;
  grid-template-columns:1fr;
  gap:6px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.spec-row:hover{background:rgba(18,192,138,.04)}
.spec-row dt{
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:10px;
}
.spec-row dt::before{
  content:"";
  width:6px;height:18px;
  border-radius:3px;
  background:var(--brand);
  flex:none;
}
.spec-row dd{margin:0;color:var(--muted);font-size:15.5px}
@media (min-width:768px){
  .spec-row{grid-template-columns:280px 1fr;gap:28px;padding:24px 8px}
}

/* ---------- 进阶图文 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  align-items:center;
}
@media (min-width:1024px){
  .split{grid-template-columns:6fr 5fr;gap:64px}
}
.split-media img{
  width:100%;
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
  aspect-ratio:16/11;
  object-fit:cover;
}
.split-copy h2{font-size:clamp(1.45rem,2.4vw,2.05rem);margin-bottom:16px}
.split-copy p{color:var(--muted);font-size:16px}
.split-copy p + p{margin-top:1em}
.split-copy .btn-link{margin-top:22px}

/* ---------- 深色提示带 ---------- */
.band-dark{
  background:linear-gradient(180deg,var(--ink) 0%,var(--ink-soft) 100%);
  color:#fff;
  padding:64px 0;
}
@media (min-width:1024px){ .band-dark{padding:84px 0} }
.band-dark h2{font-size:clamp(1.45rem,2.4vw,2.05rem);margin-bottom:14px;color:#fff}
.band-dark .band-lead{color:rgba(255,255,255,.68);max-width:62ch}
.tip-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
  margin-top:40px;
}
@media (min-width:768px){ .tip-grid{grid-template-columns:repeat(3,1fr)} }
.tip-item{
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-m);
  padding:24px 22px;
  background:rgba(255,255,255,.03);
  transition:border-color .2s ease,transform .2s ease;
}
.tip-item:hover{border-color:rgba(18,192,138,.6);transform:translateY(-3px)}
.tip-item .tip-no{
  font-size:13px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:.08em;
}
.tip-item h3{font-size:1.08rem;color:#fff;margin:10px 0 10px}
.tip-item p{color:rgba(255,255,255,.64);font-size:15px}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  font-size:17px;
  font-weight:700;
  cursor:pointer;
  list-style:none;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-deep)}
.faq-item summary .plus{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  font-size:16px;
  font-weight:700;
  color:var(--brand-deep);
  transition:transform .24s ease,background .2s ease,border-color .2s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:rgba(18,192,138,.10);border-color:rgba(18,192,138,.42)}
.faq-answer{
  padding:0 4px 24px;
  color:var(--muted);
  font-size:15.8px;
  max-width:70ch;
}
.faq-answer p + p{margin-top:.9em}

/* ---------- CTA ---------- */
.cta-panel{
  background:
    radial-gradient(700px 320px at 12% 0%,rgba(18,192,138,.16),transparent 60%),
    var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:52px 26px;
  text-align:center;
  box-shadow:var(--shadow-1);
}
@media (min-width:1024px){ .cta-panel{padding:72px 60px} }
.cta-panel h2{font-size:clamp(1.5rem,2.8vw,2.3rem);margin-bottom:14px}
.cta-panel p{color:var(--muted);max-width:56ch;margin:0 auto}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  margin-top:30px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:60px 0 26px;
  margin-top:12px;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px} }
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
}
.footer-col h4{
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col p{color:rgba(255,255,255,.62);font-size:14.5px;max-width:38ch}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{color:rgba(255,255,255,.66);font-size:14.5px;transition:color .18s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}

/* ---------- 入场动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .42s cubic-bezier(.22,1,.36,1),transform .42s cubic-bezier(.22,1,.36,1);
}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ---------- 响应式导航 ---------- */
@media (max-width:1023px){
  .nav-links{display:none}
  .hamburger{display:grid}
  .nav-right .btn-primary{display:none}
}
@media (max-width:520px){
  .search-row{flex-direction:column}
  .search-row .btn{width:100%}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:18px 26px}
}