/* roulang page: index */
:root{
  --ink:#17332B;
  --mint:#7FA695;
  --accent:#D9663F;
  --paper:#F4F2EC;
  --card:#FFFFFF;
  --muted:#EAE7DE;
  --line:#DDD8CC;
  --text:#2A2723;
  --text-2:#6B655C;
  --text-3:#9A948A;
  --radius-card:20px;
  --radius-media:24px;
  --radius-pill:999px;
  --radius-input:12px;
  --shadow-card:0 10px 30px rgba(23,51,43,.07);
  --shadow-hover:0 16px 40px rgba(23,51,43,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:72px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(217,102,63,.18);}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase;margin-bottom:12px;}
.section-head h2{font-size:clamp(24px,3vw,32px);}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px;max-width:640px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform 240ms var(--ease),background-color 240ms var(--ease),color 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(217,102,63,.24);}
.btn-primary:hover{background:#c4552f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,102,63,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:rgba(23,51,43,.08);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#f0ece1;transform:translateY(-2px);}
.btn-outline-light{border:1px solid rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);transition:color 220ms var(--ease);}
.text-link span{transition:transform 220ms var(--ease);}
.text-link:hover{color:var(--accent);}
.text-link:hover span{transform:translateX(4px);}

/* ---------- chips ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;line-height:1.6;letter-spacing:.02em;}
.chip-accent{background:var(--accent);color:#fff;}
.chip-mint{background:rgba(127,166,149,.18);color:#2f5a49;}
.chip-line{border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.7);}
.chip-glass{background:rgba(255,255,255,.9);color:var(--ink);backdrop-filter:blur(6px);}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(244,242,236,.94);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color 260ms var(--ease),background-color 260ms var(--ease);}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(244,242,236,.86);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background:var(--ink);color:#fff;font-size:14px;font-weight:800;letter-spacing:0;}
.logo-text{white-space:nowrap;}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;transition:color 220ms var(--ease);}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--ink);transition:width 260ms var(--ease);}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::before{content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;align-items:center;justify-content:center;background:#fff;}
.burger span{display:block;width:16px;height:1.6px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--ink);}
.burger span::before{top:-5px;}
.burger span::after{top:5px;}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:80;display:none;}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(23,51,43,.42);}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(300px,84vw);background:var(--paper);padding:24px;display:flex;flex-direction:column;gap:8px;transform:translateX(100%);transition:transform 280ms var(--ease);}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;}
.drawer-link{display:block;padding:14px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-link.is-active{color:var(--accent);}
.drawer-panel .btn{margin-top:18px;width:100%;}

/* ---------- hero ---------- */
.hero{padding:56px 0 72px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-media{position:relative;width:100%;aspect-ratio:3/4;max-height:540px;border-radius:var(--radius-media);overflow:hidden;background:#E9E6DD;box-shadow:var(--shadow-card);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(23,51,43,.45),rgba(23,51,43,0) 58%);}
.hero-media-chip{position:absolute;right:18px;bottom:18px;z-index:2;}
.hero-copy{display:flex;flex-direction:column;}
.hero-copy h1{font-size:clamp(30px,4.2vw,50px);line-height:1.2;margin-bottom:16px;}
.hero-sub{font-size:17px;color:var(--text-2);max-width:420px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.stat{display:flex;flex-direction:column;gap:2px;padding-left:20px;border-left:1px solid var(--line);}
.stat:first-child{padding-left:0;border-left:0;}
.stat-num{font-size:24px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-label{font-size:13px;color:var(--text-3);}

/* ---------- rail ---------- */
.rail-wrap{position:relative;}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none;-ms-overflow-style:none;}
.rail::-webkit-scrollbar{display:none;}
.snap-card{position:relative;flex:0 0 260px;scroll-snap-align:start;aspect-ratio:3/4;border-radius:var(--radius-card);overflow:hidden;background:#E9E6DD;box-shadow:var(--shadow-card);transition:transform 260ms var(--ease),box-shadow 260ms var(--ease);}
.snap-card img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.snap-card::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(23,51,43,.72),rgba(23,51,43,.05) 62%);}
.snap-card:hover{transform:scale(1.02);box-shadow:var(--shadow-hover);}
.snap-card .chip{position:absolute;left:14px;top:14px;z-index:2;}
.snap-index{position:absolute;right:14px;bottom:16px;z-index:2;font-size:13px;font-weight:700;color:rgba(255,255,255,.82);font-variant-numeric:tabular-nums;}
.snap-title{position:absolute;left:16px;right:56px;bottom:16px;z-index:2;color:#fff;font-size:16px;font-weight:700;line-height:1.45;letter-spacing:-.01em;}

/* ---------- number list ---------- */
.num-list{border-top:1px solid var(--line);}
.num-row{display:grid;grid-template-columns:96px 1fr 40px;align-items:center;gap:24px;padding:28px 0;border-bottom:1px solid var(--line);transition:background-color 240ms var(--ease);}
.num-row:hover{background:rgba(255,255,255,.6);}
.num-idx{font-size:34px;font-weight:300;color:var(--accent);letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1;}
.num-row h3{font-size:20px;margin-bottom:6px;}
.num-row p{font-size:15px;color:var(--text-2);max-width:720px;}
.num-arrow{font-size:20px;color:var(--text-3);transition:transform 240ms var(--ease),color 240ms var(--ease);}
.num-row:hover .num-arrow{transform:translateX(4px);color:var(--accent);}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform 260ms var(--ease),box-shadow 260ms var(--ease),border-color 260ms var(--ease);height:100%;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(23,51,43,.18);}
.post-thumb{display:block;aspect-ratio:16/9;background:#E9E6DD;overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-body h3{color:var(--accent);}
.post-summary{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px;font-size:13px;color:var(--text-3);}
.post-meta .read{display:inline-flex;align-items:center;gap:4px;color:var(--ink);font-weight:600;}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:16px;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);background:rgba(255,255,255,.6);color:var(--text-3);font-size:15px;text-align:center;}

/* ---------- reviews ---------- */
.reviews-band{background:var(--muted);padding:56px 0;}
.review-rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none;-ms-overflow-style:none;}
.review-rail::-webkit-scrollbar{display:none;}
.review-card{flex:0 0 300px;scroll-snap-align:start;background:#fff;border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:12px;box-shadow:0 6px 18px rgba(23,51,43,.05);}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{width:38px;height:38px;border-radius:50%;background:rgba(127,166,149,.28);color:#2f5a49;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;}
.review-name{font-size:14px;font-weight:600;color:var(--ink);}
.review-role{font-size:12px;color:var(--text-3);}
.review-text{font-size:14px;color:var(--text-2);line-height:1.75;}
.review-stars{font-size:13px;color:var(--accent);letter-spacing:2px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;padding:0 22px;position:relative;transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);}
.faq-item[open]{border-color:rgba(23,51,43,.24);box-shadow:var(--shadow-card);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--text-2);transition:transform 260ms var(--ease),background-color 260ms var(--ease);}
.faq-icon::before{left:0;top:7px;width:16px;height:1.6px;}
.faq-icon::after{left:7px;top:0;width:1.6px;height:16px;}
.faq-item[open] .faq-icon::after{transform:rotate(45deg);}
.faq-item[open] .faq-icon::before{background:var(--accent);}
.faq-answer{padding:0 0 22px;font-size:15px;color:var(--text-2);max-width:760px;}
.faq-item[open]::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--accent);}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);border-radius:var(--radius-media);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:rgba(127,166,149,.14);}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:72px;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:#fff;color:var(--ink);}
.footer-brand p{max-width:320px;line-height:1.8;font-size:14px;color:rgba(255,255,255,.62);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.66);transition:color 220ms var(--ease);}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{color:rgba(255,255,255,.66);}
.footer-contact strong{display:block;color:#fff;font-size:13px;font-weight:600;margin-bottom:2px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;font-size:12px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(255,255,255,.5);}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none;}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{aspect-ratio:4/3;max-height:420px;order:1;}
  .hero-copy{order:2;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .nav-list,.nav-actions .btn{display:none;}
  .burger{display:flex;}
  .nav-wrap{height:64px;}
  .logo{font-size:16px;}
  .hero{padding:32px 0 40px;}
  .hero-copy h1{font-size:30px;}
  .hero-sub{font-size:15px;margin-bottom:22px;}
  .hero-actions{gap:10px;margin-bottom:28px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;padding:12px 18px;font-size:14px;}
  .hero-stats{gap:16px;}
  .stat{padding-left:14px;}
  .stat-num{font-size:20px;}
  .stat-label{font-size:12px;}
  .snap-card{flex:0 0 78%;}
  .num-row{grid-template-columns:56px 1fr;gap:16px;padding:22px 0;}
  .num-idx{font-size:26px;}
  .num-arrow{display:none;}
  .num-row h3{font-size:17px;}
  .num-row p{font-size:14px;}
  .post-grid{grid-template-columns:1fr;}
  .review-card{flex:0 0 82%;}
  .faq-item{padding:0 18px;border-radius:14px;}
  .faq-item summary{font-size:16px;padding:18px 0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;margin-top:48px;padding-bottom:80px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  body{padding-bottom:76px;}

  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:64px;background:rgba(244,242,236,.97);backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tab a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--text-3);position:relative;transition:color 220ms var(--ease);}
  .mobile-tab svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
  .mobile-tab a.is-active{color:var(--ink);font-weight:600;}
  .mobile-tab a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:22px;height:3px;border-radius:0 0 3px 3px;background:var(--accent);}
}
@media (max-width:520px){
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .hero-media{aspect-ratio:1/1;max-height:360px;}
  .snap-card{flex:0 0 84%;}
  .stat-num{font-size:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --ink:#17332B;
  --ink-soft:#1F3F35;
  --mint:#7FA695;
  --accent:#D9663F;
  --paper:#F4F2EC;
  --card:#FFFFFF;
  --block:#EAE7DE;
  --line:#DDD8CC;
  --text:#2A2723;
  --text-2:#6B655C;
  --text-3:#9A948A;
  --r-card:20px;
  --r-media:24px;
  --r-btn:999px;
  --r-input:12px;
  --sh-card:0 10px 30px rgba(23,51,43,.07);
  --sh-hover:0 16px 40px rgba(23,51,43,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:72px; --s9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;background:#E9E6DD;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.28;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,242,236,.86);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;color:var(--ink);font-size:17px;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--ink);color:#F4F2EC;font-size:16px;font-weight:800;
  transition:transform .24s var(--ease);
}
.logo:hover .logo-mark{transform:translateY(-2px);}
.logo-text{white-space:nowrap;}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ink);transition:width .26s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--accent);
}
.nav-link.is-active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:#C4562F;border-color:#C4562F;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(23,51,43,.08);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.burger{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:transparent;cursor:pointer;position:relative;
}
.burger span{position:absolute;left:11px;top:20px;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .26s var(--ease);}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .26s var(--ease);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.burger[aria-expanded="true"] span{transform:rotate(45deg);}
.burger[aria-expanded="true"] span::before{transform:rotate(-90deg) translateX(-6px);}
.burger[aria-expanded="true"] span::after{opacity:0;}

/* drawer */
.drawer{
  position:fixed;inset:0 0 0 auto;width:78%;max-width:340px;z-index:80;
  background:var(--paper);border-left:1px solid var(--line);
  padding:88px 24px 32px;
  transform:translateX(100%);transition:transform .32s var(--ease);
  box-shadow:var(--sh-hover);
}
.drawer.open{transform:translateX(0);}
.drawer a{display:block;padding:14px 0;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer a:last-of-type{border-bottom:none;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,51,43,.38);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* ---------- page ---------- */
.page-main{padding:36px 0 88px;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:28px;
}
.crumbs a{color:var(--text-3);transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--ink);}
.crumbs .sep{color:#C6BFB2;}
.crumbs .current{color:var(--text-2);}

.article-head{border-bottom:1px solid var(--line);padding-bottom:32px;margin-bottom:44px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:rgba(127,166,149,.18);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.pill-accent{background:rgba(217,102,63,.12);color:#B94F2C;}
.article-title{
  font-size:44px;line-height:1.22;margin:20px 0 0;max-width:900px;
  letter-spacing:-.025em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6BFB2;}

.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;
  gap:56px;align-items:start;
}
.article-body{
  max-width:760px;font-size:16px;line-height:1.85;color:var(--text);
}
.article-body > * + *{margin-top:1.6em;}
.article-body p{margin:0 0 1.6em;}
.article-body h2{
  position:relative;font-size:30px;margin:56px 0 20px;padding-left:16px;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;
  background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:22px;margin:40px 0 14px;}
.article-body h4{font-size:18px;margin:32px 0 12px;color:var(--ink-soft);}
.article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:0;}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  background:var(--accent);border-radius:2px;
}
.article-body ol{counter-reset:li;}
.article-body ol > li{counter-increment:li;padding-left:26px;}
.article-body ol > li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;color:var(--accent);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:0 0 1.6em;padding:18px 22px;
  background:#EFEDE5;border-left:3px solid var(--mint);
  border-radius:0 12px 12px 0;color:var(--ink-soft);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;width:100%;margin:0 0 12px;}
.article-body figure{margin:0 0 1.6em;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:left;}
.article-body a{color:var(--ink);border-bottom:1px solid var(--mint);transition:color .2s var(--ease);}
.article-body a:hover{color:var(--accent);border-color:var(--accent);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.6em;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:#EFEDE5;font-weight:600;color:var(--ink);}

/* sidebar */
.side{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);
}
.side-card h3{font-size:15px;margin-bottom:14px;letter-spacing:0;}
.side-list li{
  display:flex;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-2);padding:9px 0;border-bottom:1px dashed var(--line);
  font-variant-numeric:tabular-nums;
}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list li span:last-child{color:var(--ink);font-weight:600;text-align:right;}
.side-card.cta{
  background:var(--ink);border-color:var(--ink);color:#E7EDE8;
}
.side-card.cta h3{color:#fff;font-size:16px;}
.side-card.cta p{font-size:13px;color:#B9C7BE;margin-bottom:16px;}
.side-card.cta .btn{width:100%;}

/* tags */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:52px 0 0;}
.tag-row .label{font-size:13px;color:var(--text-3);}
.tag{
  display:inline-flex;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);
  font-size:13px;color:var(--text-2);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.tag:hover{border-color:var(--mint);color:var(--ink);transform:translateY(-2px);}

.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:28px;
  font-size:14px;color:var(--ink);font-weight:600;
}
.back-link svg{transition:transform .22s var(--ease);}
.back-link:hover svg{transform:translateX(-3px);}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--card);padding:56px 28px;text-align:center;max-width:760px;
}
.empty-state .empty-title{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:10px;}
.empty-state .empty-desc{font-size:14px;color:var(--text-2);margin-bottom:24px;}

/* related */
.related{margin-top:88px;border-top:1px solid var(--line);padding-top:56px;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.related-head h2{font-size:30px;}
.related-head p{font-size:14px;color:var(--text-2);margin-top:8px;}
.more-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
}
.more-link svg{transition:transform .22s var(--ease);}
.more-link:hover svg{transform:translateX(3px);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9E6DD;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-thumb .pill{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:var(--ink);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{
  font-size:18px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.post-foot .arrow{color:var(--ink);transition:transform .22s var(--ease);}
.post-card:hover .post-foot .arrow{transform:translateX(3px);}

/* cta band */
.cta-band{margin-top:96px;}
.cta-inner{
  background:var(--ink);border-radius:28px;color:#E7EDE8;
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-inner h2{color:#fff;font-size:32px;letter-spacing:-.02em;}
.cta-inner p{color:#B9C7BE;font-size:15px;margin-top:12px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-on-dark{border-color:rgba(255,255,255,.5);color:#fff;}
.btn-on-dark:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}

/* footer */
.site-footer{background:var(--ink);color:#C9D5CC;margin-top:96px;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px;}
.footer-brand .logo{color:#fff;}
.footer-brand .logo-mark{background:#F4F2EC;color:var(--ink);}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9BAB0;margin-top:18px;max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:12px;font-size:14px;}
.footer-col a{color:#A9BAB0;transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{font-size:14px;color:#A9BAB0;margin-bottom:12px;}
.footer-contact strong{display:block;color:#fff;font-size:13px;font-weight:600;margin-bottom:2px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:#8FA396;
}

/* mobile tab */
.mobile-tab{display:none;}
@media (max-width:767px){
  body{padding-bottom:72px;}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(244,242,236,.96);backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    height:60px;font-size:11px;color:var(--text-3);position:relative;
  }
  .tab-item svg{width:22px;height:22px;}
  .tab-item.active{color:var(--ink);font-weight:600;}
  .tab-item.active::before{
    content:"";position:absolute;top:0;width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--accent);
  }
}

/* responsive */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .side{position:static;flex-direction:row;flex-wrap:wrap;}
  .side-card{flex:1 1 260px;}
  .article-title{font-size:36px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{padding:44px;flex-direction:column;align-items:flex-start;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .nav-list{display:none;}
  .nav-actions .btn-sm{display:none;}
  .burger{display:block;}
  .page-main{padding:24px 0 64px;}
  .article-title{font-size:30px;margin-top:16px;}
  .article-body{font-size:15px;}
  .article-body h2{font-size:24px;margin-top:40px;}
  .article-body h3{font-size:19px;}
  .related{margin-top:64px;padding-top:40px;}
  .related-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .related-head h2{font-size:24px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-inner{padding:32px 24px;border-radius:20px;}
  .cta-inner h2{font-size:24px;}
  .site-footer{margin-top:64px;padding-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;}
  .side{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --ink:#17332B;
  --ink-soft:#204238;
  --mist:#7FA695;
  --accent:#D9663F;
  --accent-deep:#C2552F;
  --paper:#F4F2EC;
  --card:#FFFFFF;
  --sub:#EAE7DE;
  --line:#DDD8CC;
  --text:#2A2723;
  --muted:#6B655C;
  --weak:#9A948A;
  --radius-card:20px;
  --radius-media:24px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-card:0 10px 30px rgba(23,51,43,.07);
  --shadow-hover:0 16px 40px rgba(23,51,43,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-6:24px;
  --space-8:32px;
  --space-12:48px;
  --space-18:72px;
  --space-24:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--ink);}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(244,242,236,.86);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  background:rgba(244,242,236,.96);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.logo-mark{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--ink);
  color:#fff;
  font-size:15px;
  font-weight:800;
  letter-spacing:0;
  flex:none;
}
.logo-text{
  font-size:17px;
  white-space:nowrap;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--ink);
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  background:var(--ink);
  transition:width .26s var(--ease),background .22s var(--ease);
}
.nav-link:hover::after,
.nav-link:focus-visible::after{width:100%;}
.nav-link.is-active::after{
  width:100%;
  background:var(--accent);
}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:-11px;
  top:50%;
  transform:translateY(-50%);
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  background:transparent;
  cursor:pointer;
  position:relative;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.burger:hover{border-color:var(--ink);background:rgba(23,51,43,.05);}
.burger span,
.burger span::before,
.burger span::after{
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.burger span{top:50%;transform:translate(-50%,-50%);}
.burger span::before{content:"";top:-6px;left:0;}
.burger span::after{content:"";top:6px;left:0;}

/* Drawer */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(23,51,43,.32);
  opacity:0;
  pointer-events:none;
  transition:opacity .26s var(--ease);
  z-index:80;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:290px;
  max-width:84vw;
  background:var(--card);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  z-index:90;
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:transparent;cursor:pointer;font-size:18px;line-height:1;color:var(--ink);
  transition:border-color .22s var(--ease);
}
.drawer-close:hover{border-color:var(--ink);}
.drawer-link{
  padding:12px 4px;
  font-size:15px;
  color:var(--ink);
  border-bottom:1px dashed var(--line);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.drawer-link:hover{color:var(--accent);padding-left:8px;}
.drawer-cta{margin-top:auto;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 20px rgba(217,102,63,.18);
}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,102,63,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:var(--ink);
  color:var(--ink);
}
.btn-ghost:hover{background:rgba(23,51,43,.08);transform:translateY(-2px);}
.btn-ghost-light{
  background:transparent;
  border-color:rgba(255,255,255,.5);
  color:#fff;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-sm{padding:9px 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  transition:color .22s var(--ease);
}
.link-arrow svg{transition:transform .24s var(--ease);}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- Tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.4;
  background:rgba(127,166,149,.18);
  color:var(--ink);
}
.tag-solid{background:var(--ink);color:#fff;}
.tag-accent{background:rgba(217,102,63,.14);color:var(--accent-deep);}

/* ---------- Hero ---------- */
.page-hero{padding:56px 0 64px;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:20px;
}
.breadcrumb a{transition:color .22s var(--ease);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:var(--line);}
.hero-title{
  font-size:clamp(30px,4vw,48px);
  margin:16px 0 16px;
  max-width:16ch;
}
.hero-sub{
  font-size:16px;
  color:var(--muted);
  max-width:38ch;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-metrics{
  display:flex;
  align-items:stretch;
  gap:20px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.metric{flex:1;}
.metric + .metric{
  padding-left:20px;
  border-left:1px solid var(--line);
}
.metric-num{
  font-size:26px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  letter-spacing:-.02em;
}
.metric-label{
  font-size:13px;
  color:var(--muted);
  margin-top:2px;
}
.hero-figure{
  position:relative;
  aspect-ratio:1/1;
  border-radius:var(--radius-media);
  overflow:hidden;
  background:#E9E6DD;
  box-shadow:var(--shadow-card);
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(23,51,43,0) 45%,rgba(23,51,43,.55) 100%);
  pointer-events:none;
}
.hero-figure .figure-badge{
  position:absolute;
  right:16px;
  bottom:16px;
  z-index:2;
  padding:6px 14px;
  border-radius:999px;
  background:var(--accent);
  color:#fff;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.02em;
}
.hero-figure .figure-note{
  position:absolute;
  left:20px;
  bottom:18px;
  z-index:2;
  color:#fff;
  font-size:13px;
  opacity:.9;
}

/* ---------- Section basics ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-title{
  font-size:clamp(24px,2.8vw,32px);
}
.section-desc{
  margin-top:10px;
  font-size:15px;
  color:var(--muted);
  max-width:56ch;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--mist);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--mist);
}

/* ---------- Two-column large cards ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.cl-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.cl-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:#CFC8B8;
}
.cl-media{
  position:relative;
  aspect-ratio:16/9;
  background:#E9E6DD;
  overflow:hidden;
}
.cl-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.cl-card:hover .cl-media img{transform:scale(1.04);}
.cl-no{
  position:absolute;
  left:16px;
  top:16px;
  z-index:2;
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border-radius:12px;
  background:rgba(244,242,236,.94);
  color:var(--accent);
  font-size:14px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.cl-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.cl-title{
  font-size:21px;
  line-height:1.35;
}
.cl-desc{
  font-size:14.5px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cl-foot{
  margin-top:auto;
  padding-top:10px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border-top:1px solid var(--line);
}
.cl-meta{
  font-size:13px;
  color:var(--weak);
  font-variant-numeric:tabular-nums;
}

/* ---------- Stat strip ---------- */
.stat-strip{
  background:var(--sub);
  border-radius:var(--radius-card);
  padding:36px 32px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.stat-item + .stat-item{
  padding-left:24px;
  border-left:1px solid rgba(23,51,43,.14);
}
.stat-num{
  font-size:34px;
  font-weight:800;
  color:var(--ink);
  line-height:1.15;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:15px;font-weight:700;margin-left:2px;}
.stat-text{
  font-size:13.5px;
  color:var(--muted);
  margin-top:6px;
}

/* ---------- Step list ---------- */
.step-list{
  border-top:1px solid var(--line);
}
.step-item{
  display:grid;
  grid-template-columns:88px 1fr auto;
  align-items:center;
  gap:24px;
  padding:26px 8px;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),padding-left .24s var(--ease);
}
.step-item:hover{
  background:rgba(255,255,255,.6);
  padding-left:16px;
}
.step-num{
  font-size:26px;
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1;
}
.step-title{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
.step-desc{
  font-size:14.5px;
  color:var(--muted);
  margin-top:4px;
  max-width:64ch;
}
.step-item .link-arrow{font-size:13.5px;white-space:nowrap;}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  gap:14px;
  max-width:920px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:#CFC8B8;}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(234,231,222,.5);}
.faq-icon{
  position:relative;
  flex:none;
  width:16px;
  height:16px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--ink);
  border-radius:2px;
  transition:transform .26s var(--ease),background .24s var(--ease);
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item[open] summary{
  box-shadow:inset 3px 0 0 var(--accent);
  background:rgba(234,231,222,.42);
}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-item[open] .faq-icon::before{background:var(--accent);}
.faq-body{
  padding:0 22px 20px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);
  border-radius:24px;
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:280px;
  height:280px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
  pointer-events:none;
}
.cta-title{
  color:#fff;
  font-size:clamp(22px,2.6vw,30px);
  max-width:20ch;
}
.cta-desc{
  color:rgba(255,255,255,.72);
  font-size:14.5px;
  margin-top:10px;
  max-width:46ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex:none;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  margin-top:96px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .logo{color:#fff;}
.site-footer .logo-mark{background:rgba(255,255,255,.14);color:#fff;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  max-width:34ch;
}
.footer-col h4{
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.66);
  transition:color .22s var(--ease);
}
.footer-col a:hover{color:var(--mist);}
.footer-contact li{
  font-size:14px;
  color:rgba(255,255,255,.66);
  display:flex;
  gap:10px;
  line-height:1.7;
}
.footer-contact strong{
  color:rgba(255,255,255,.92);
  font-weight:600;
  flex:none;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12px;
  color:rgba(255,255,255,.5);
}

/* ---------- Mobile tab bar ---------- */
.mobile-tab{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  height:60px;
  font-size:11px;
  color:var(--muted);
  transition:color .22s var(--ease);
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.tab-item.is-active{color:var(--ink);font-weight:600;}
.tab-item.is-active::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:22px;
  height:3px;
  border-radius:0 0 3px 3px;
  background:var(--accent);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{aspect-ratio:16/10;order:-1;}
  .hero-title{max-width:none;}
  .card-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px;}
  .stat-item:nth-child(odd){padding-left:0;border-left:none;}
  .stat-item:nth-child(3){padding-left:0;border-left:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
  .nav-list{gap:20px;}
  .nav-link{font-size:14px;}
}
@media (max-width:767px){
  body{padding-bottom:76px;font-size:15px;}
  .container{padding:0 16px;}
  .nav-list{display:none;}
  .nav-actions .btn{display:none;}
  .burger{display:block;}
  .nav-wrap{height:64px;}
  .logo-text{font-size:15.5px;}
  .mobile-tab{display:flex;}
  .page-hero{padding:32px 0 40px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:24px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-metrics{gap:12px;margin-top:26px;padding-top:18px;}
  .metric + .metric{padding-left:12px;}
  .metric-num{font-size:21px;}
  .metric-label{font-size:12px;}
  .cl-body{padding:18px 18px 20px;}
  .cl-title{font-size:18px;}
  .stat-strip{grid-template-columns:1fr;padding:26px 22px;gap:0;}
  .stat-item{padding:16px 0;border-left:none;border-top:1px solid rgba(23,51,43,.12);}
  .stat-item:first-child{padding-top:0;border-top:none;}
  .step-item{grid-template-columns:52px 1fr;gap:14px;padding:20px 4px;}
  .step-item .link-arrow{display:none;}
  .step-num{font-size:22px;}
  .step-title{font-size:17px;}
  .faq-item summary{font-size:15.5px;padding:16px 18px;}
  .faq-body{padding:0 18px 18px;font-size:14px;}
  .cta-band{padding:28px 22px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .site-footer{margin-top:56px;padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;padding:16px 0 20px;}
}
@media (max-width:520px){
  .hero-title{font-size:30px;}
  .section-title{font-size:23px;}
  .stat-num{font-size:28px;}
  .cta-title{font-size:21px;}
}

/* roulang page: category2 */
:root{
  --ink:#17332B;
  --ink-soft:#1F4137;
  --mist:#7FA695;
  --orange:#D9663F;
  --paper:#F4F2EC;
  --card:#FFFFFF;
  --sub:#EAE7DE;
  --line:#DDD8CC;
  --text:#2A2723;
  --text-2:#6B655C;
  --text-3:#9A948A;
  --r-card:20px;
  --r-lg:24px;
  --r-btn:999px;
  --r-in:12px;
  --sh-card:0 10px 30px rgba(23,51,43,.07);
  --sh-hover:0 16px 40px rgba(23,51,43,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-head:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-head);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-family:var(--font-head);font-weight:800;letter-spacing:-0.02em;color:var(--ink);line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,242,236,.86);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease), background .24s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(244,242,236,.95);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-0.02em;color:var(--ink);font-size:17px;}
.logo-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:9px;
  background:var(--ink);color:#F4F2EC;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:0;
}
.logo-text{white-space:nowrap;}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ink);transition:width .24s var(--ease);
}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::before{
  content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--orange);
}
.nav-actions{display:flex;align-items:center;gap:14px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;
  padding:14px 26px;line-height:1.2;
  transition:transform .24s var(--ease), background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:#C45833;transform:translateY(-2px);box-shadow:0 10px 24px rgba(217,102,63,.24);}
.btn-primary:active{transform:translateY(0);background:#B14E2C;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(23,51,43,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-light{background:#F4F2EC;color:var(--ink);}
.btn-light:hover{background:#fff;transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#F4F2EC;border-color:rgba(244,242,236,.55);}
.btn-outline-light:hover{background:rgba(244,242,236,.12);transform:translateY(-2px);}

.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--card);
  transition:border-color .2s var(--ease);
}
.burger:hover{border-color:var(--ink);}
.burger span,.burger span::before,.burger span::after{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease), opacity .24s var(--ease);
}
.burger span{position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.burger[aria-expanded="true"] span{background:transparent;}
.burger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.drawer-mask{
  position:fixed;inset:0;background:rgba(23,51,43,.4);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--paper);z-index:80;
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:22px 22px 32px;display:flex;flex-direction:column;gap:8px;
  border-left:1px solid var(--line);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink);
  transition:border-color .2s var(--ease);
}
.drawer-close:hover{border-color:var(--ink);}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink);transition:color .2s var(--ease);
}
.drawer-link:hover{color:var(--orange);}
.drawer-link.is-active{color:var(--orange);font-weight:700;}
.drawer-link span{color:var(--text-3);font-size:13px;}

/* ---------- Mobile Tabbar ---------- */
.tabbar{display:none;}
@media (max-width:767px){
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:65;
    display:flex;align-items:stretch;justify-content:space-around;
    height:62px;padding-bottom:env(safe-area-inset-bottom);
    background:rgba(244,242,236,.97);
    border-top:1px solid var(--line);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;color:var(--text-2);position:relative;padding-top:4px;
    transition:color .2s var(--ease);
  }
  .tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
  .tab-item.is-active{color:var(--ink);font-weight:600;}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:3px;border-radius:2px;background:var(--orange);
  }
  body{padding-bottom:70px;}
}

/* ---------- Page Hero ---------- */
.page-hero{padding:48px 0 56px;position:relative;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;left:50%;top:-160px;transform:translateX(-50%);
  width:900px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,166,149,.22),rgba(127,166,149,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.12fr .88fr;
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink);
  background:var(--sub);border-radius:var(--r-btn);padding:7px 16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.hero-title{font-size:48px;margin:20px 0 18px;line-height:1.16;}
.hero-title em{font-style:normal;color:var(--mist);}
.hero-lead{font-size:16px;color:var(--text-2);max-width:34em;margin-bottom:12px;}
.hero-lead + .hero-lead{margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:1/1;background:#E9E6DD;box-shadow:var(--sh-card);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(to top,rgba(23,51,43,.72),rgba(23,51,43,0));
  pointer-events:none;
}
.hero-badge{
  position:absolute;right:18px;bottom:18px;z-index:2;
  background:var(--orange);color:#fff;font-size:13px;font-weight:600;
  padding:7px 16px;border-radius:var(--r-btn);letter-spacing:.02em;
}
.hero-caption{
  position:absolute;left:20px;bottom:20px;z-index:2;color:#fff;
  font-size:13px;opacity:.9;max-width:60%;
}

/* ---------- Sections ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-sub{background:var(--sub);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-title{font-size:32px;}
.section-desc{margin-top:10px;color:var(--text-2);font-size:15px;max-width:46em;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.text-link .arrow{transition:transform .24s var(--ease);}
.text-link:hover{color:var(--orange);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- Stat bar ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;
}
.stat-item{
  padding:28px 26px;border-right:1px solid var(--line);
  transition:background .24s var(--ease);
}
.stat-item:last-child{border-right:0;}
.stat-item:hover{background:#FBFAF6;}
.stat-num{
  font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-0.03em;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-num small{font-size:15px;font-weight:600;color:var(--mist);margin-left:4px;letter-spacing:0;}
.stat-label{margin-top:8px;font-size:13px;color:var(--text-2);}

/* ---------- Function list ---------- */
.func-list{border-top:1px solid var(--line);}
.func-item{
  display:grid;grid-template-columns:96px 1fr 44px;align-items:center;gap:24px;
  padding:28px 8px;border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),padding-left .24s var(--ease);
}
.func-item:hover{background:rgba(255,255,255,.65);padding-left:18px;}
.func-num{
  font-size:32px;font-weight:300;color:var(--orange);
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;line-height:1;
}
.func-title{font-size:21px;margin-bottom:6px;}
.func-text{font-size:15px;color:var(--text-2);max-width:52em;}
.func-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  font-size:12px;color:var(--ink);background:rgba(127,166,149,.18);
  border-radius:var(--r-btn);padding:4px 12px;letter-spacing:.02em;
}
.tag-accent{background:rgba(217,102,63,.13);color:#B14E2C;}
.func-arrow{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  color:var(--ink);transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.func-item:hover .func-arrow{transform:translateX(4px);border-color:var(--ink);color:var(--orange);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:rgba(23,51,43,.07);color:var(--ink);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:19px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--text-2);}
.step-line{height:1px;background:var(--line);margin:20px 0 0;}

/* ---------- Split block ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;
  background:#E9E6DD;box-shadow:var(--sh-card);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.split-media:hover img{transform:scale(1.03);}
.split-badge{
  position:absolute;left:18px;top:18px;background:rgba(244,242,236,.94);
  color:var(--ink);font-size:12px;font-weight:600;padding:6px 14px;border-radius:var(--r-btn);
}
.split-body h2{font-size:30px;margin-bottom:16px;}
.split-body p{color:var(--text-2);font-size:15px;margin-bottom:16px;}
.check-list{display:grid;gap:12px;margin:22px 0 26px;}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--text);}
.check-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:11px;
  background:var(--orange);border-radius:2px;
}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px;}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;transition:border-color .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--orange);
  opacity:0;transition:opacity .24s var(--ease);
}
.faq-item[open]{border-color:rgba(23,51,43,.35);}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 26px;
  font-size:17px;font-weight:600;color:var(--ink);position:relative;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:300;color:var(--text-3);line-height:1;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--orange);}
.faq-item summary:hover{color:var(--orange);}
.faq-answer{padding:0 26px 22px;font-size:15px;color:var(--text-2);max-width:60em;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#E9E6DD;border-radius:var(--r-lg);
  padding:52px 48px;display:grid;grid-template-columns:1.3fr .7fr;
  gap:36px;align-items:center;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(127,166,149,.3),rgba(127,166,149,0) 70%);
  pointer-events:none;
}
.cta-band h2{color:#F4F2EC;font-size:30px;margin-bottom:12px;}
.cta-band p{color:rgba(233,230,221,.78);font-size:15px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(233,230,221,.82);margin-top:80px;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand .logo{color:#F4F2EC;font-size:16px;margin-bottom:16px;}
.footer-brand .logo-mark{background:#F4F2EC;color:var(--ink);}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(233,230,221,.7);max-width:26em;}
.footer-col h4{font-size:14px;color:#F4F2EC;margin-bottom:16px;letter-spacing:.04em;font-weight:700;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(233,230,221,.72);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--mist);}
.footer-contact li{font-size:13px;color:rgba(233,230,221,.7);display:flex;gap:8px;flex-wrap:wrap;}
.footer-contact strong{color:#F4F2EC;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(233,230,221,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(233,230,221,.55);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .nav-list{gap:22px;}
  .hero-grid{gap:36px;grid-template-columns:1fr .85fr;}
  .hero-title{font-size:40px;}
  .split{gap:36px;}
  .cta-band{padding:44px 36px;grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-list{display:none;}
  .nav-actions .btn-sm{display:none;}
  .burger{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{aspect-ratio:16/11;order:-1;}
  .hero-title{font-size:36px;}
  .steps{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;}
  .split-media{aspect-ratio:16/10;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .page-hero{padding:32px 0 40px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .section-title{font-size:26px;}
  .hero-title{font-size:31px;margin:16px 0 14px;}
  .hero-lead{font-size:15px;}
  .func-item{grid-template-columns:52px 1fr 36px;gap:14px;padding:22px 4px;}
  .func-num{font-size:24px;}
  .func-title{font-size:18px;}
  .func-text{font-size:14px;}
  .func-arrow{width:36px;height:36px;}
  .hero-media{aspect-ratio:4/3;}
  .cta-band{padding:34px 24px;border-radius:var(--r-card);}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero-title{font-size:28px;}
  .stat-num{font-size:26px;}
  .stat-item{padding:20px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .nav-actions{gap:8px;}
}

/* roulang page: category3 */
:root{
  --ink:#17332B;
  --mint:#7FA695;
  --orange:#D9663F;
  --paper:#F4F2EC;
  --card:#FFFFFF;
  --sub:#EAE7DE;
  --line:#DDD8CC;
  --text:#2A2723;
  --text-2:#6B655C;
  --text-3:#9A948A;
  --r-card:20px;
  --r-media:24px;
  --r-input:12px;
  --sh-card:0 10px 30px rgba(23,51,43,.07);
  --sh-hover:0 16px 40px rgba(23,51,43,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  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;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-narrow{padding:56px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.6rem,2.4vw,2.1rem)}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--mint);
  text-transform:uppercase;font-weight:600;margin-bottom:16px;
}
.eyebrow i{width:18px;height:1px;background:var(--mint);display:block}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,242,236,.9);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header.is-scrolled{background:rgba(244,242,236,.97);border-bottom-color:var(--line);box-shadow:0 2px 18px rgba(23,51,43,.05)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;color:var(--ink);font-size:17px;line-height:1.2}
.logo-mark{
  display:grid;place-items:center;width:32px;height:32px;border-radius:10px;
  background:var(--ink);color:#F4F2EC;font-size:15px;font-weight:800;flex:none;
}
.logo-text{white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ink);border-radius:2px;transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{width:100%;background:var(--ink)}
.nav-link.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--orange);
}
.nav-actions{display:flex;align-items:center;gap:14px}
.burger{
  display:none;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;transition:background .22s var(--ease);
}
.burger:hover{background:var(--sub)}
.burger span{position:relative;display:block;width:16px;height:2px;background:var(--ink);border-radius:2px}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;
}
.burger span::before{top:-5px}
.burger span::after{top:5px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:15px;font-weight:600;padding:13px 26px;
  border:1px solid transparent;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(217,102,63,.22)}
.btn-primary:hover{background:#c4552f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,102,63,.26)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(23,51,43,.08);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--ink);transition:color .22s var(--ease);
}
.link-arrow svg{transition:transform .24s var(--ease)}
.link-arrow:hover{color:var(--orange)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ 分类首屏 ============ */
.cat-hero{padding:64px 0 56px}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.cat-hero h1{font-size:clamp(2rem,3.6vw,3rem);line-height:1.18}
.cat-hero-copy p{margin-top:20px;color:var(--text-2);font-size:17px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.cat-hero-media{
  position:relative;aspect-ratio:1/1;border-radius:var(--r-media);overflow:hidden;
  background:#E9E6DD;box-shadow:var(--sh-card);
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,51,43,0) 55%,rgba(23,51,43,.45) 100%);
}
.badge-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  background:var(--orange);color:#fff;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;
}

/* ============ 横向图文条目 ============ */
.hz-list{display:flex;flex-direction:column;gap:24px}
.hz-item{
  display:grid;grid-template-columns:.86fr 1.14fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.hz-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFC8B9}
.hz-media{background:#E9E6DD;min-height:280px}
.hz-media img{width:100%;height:100%;object-fit:cover}
.hz-body{padding:32px 34px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.hz-no{
  font-size:15px;font-weight:800;color:var(--orange);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.hz-body h3{font-size:21px}
.hz-body p{color:var(--text-2);font-size:15.5px}
.hz-body .link-arrow{margin-top:6px}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--sub);border-radius:var(--r-card);
  padding:34px 10px;gap:4px;
}
.stat{padding:0 24px;display:flex;flex-direction:column;gap:6px}
.stat + .stat{border-left:1px solid var(--line)}
.stat-num{
  font-size:clamp(1.5rem,2.4vw,2rem);font-weight:800;color:var(--ink);
  letter-spacing:-.02em;line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px}
.stat-label{font-size:13.5px;color:var(--text-2)}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-card);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step-no{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--orange);font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:#CFC8B9;box-shadow:var(--sh-card)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--orange);transform:scaleY(0);transform-origin:top;
  transition:transform .28s var(--ease);
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  transition:transform .26s var(--ease),background .26s var(--ease),border-color .26s var(--ease);
}
.faq-icon svg{width:12px;height:12px;stroke:var(--ink);transition:stroke .26s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--ink);border-color:var(--ink)}
.faq-item[open] .faq-icon svg{stroke:#F4F2EC}
.faq-panel{padding:0 24px 22px;color:var(--text-2);font-size:15.5px}

/* ============ 底部 CTA ============ */
.cta-wrap{padding:24px 0 80px}
.cta-band{
  background:var(--ink);color:#F4F2EC;border-radius:28px;
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band h2{color:#F4F2EC;font-size:clamp(1.5rem,2.4vw,2rem)}
.cta-band p{margin-top:12px;color:rgba(244,242,236,.72);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:none}
.cta-band .btn-ghost{border-color:rgba(244,242,236,.5);color:#F4F2EC}
.cta-band .btn-ghost:hover{background:rgba(244,242,236,.12)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(244,242,236,.78);padding:72px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:#F4F2EC}
.footer-brand .logo-mark{background:rgba(244,242,236,.14);color:#F4F2EC}
.footer-brand p{margin-top:18px;max-width:320px;line-height:1.9;color:rgba(244,242,236,.66)}
.footer-col h4{color:#F4F2EC;font-size:15px;margin-bottom:16px;letter-spacing:0}
.footer-col li{margin-bottom:10px;line-height:1.7}
.footer-col a{color:rgba(244,242,236,.72);transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--mint)}
.footer-contact li{color:rgba(244,242,236,.66)}
.footer-contact strong{display:block;color:rgba(244,242,236,.9);font-weight:600;font-size:13px;letter-spacing:.04em}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(244,242,236,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:rgba(244,242,236,.55);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tab{display:none}

/* ============ 抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.drawer::before{
  content:"";position:absolute;inset:0;background:rgba(23,51,43,.45);
  opacity:0;transition:opacity .28s var(--ease);
}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(84vw,340px);
  background:var(--paper);padding:24px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .3s var(--ease);
  box-shadow:-20px 0 40px rgba(23,51,43,.16);
}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer.is-open::before{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:20px;line-height:1;cursor:pointer;margin-bottom:12px;
  transition:background .22s var(--ease);
}
.drawer-close:hover{background:var(--sub)}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  padding:14px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);
  transition:color .22s var(--ease);
}
.drawer-nav a:hover{color:var(--orange)}
.drawer-nav a.is-active{color:var(--ink);font-weight:600}
.drawer .btn{margin-top:20px;width:100%}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 20px}
  .cat-hero-grid{gap:36px}
  .hz-body{padding:26px 26px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:44px;gap:28px}
}
@media (max-width:900px){
  .nav-list{display:none}
  .burger{display:inline-flex}
  .cat-hero-grid{grid-template-columns:1fr}
  .cat-hero-media{aspect-ratio:16/10;order:2}
  .cat-hero-copy{order:1}
  .cat-hero{padding:44px 0 40px}
  .hz-item{grid-template-columns:1fr}
  .hz-media{min-height:220px;max-height:260px}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:0;padding:24px 6px}
  .stat{padding:18px 20px}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .stat:nth-child(3){border-left:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-narrow{padding:40px 0}
  body{padding-bottom:68px;font-size:15px}
  .nav-wrap{height:64px}
  .logo{font-size:15.5px}
  .logo-mark{width:28px;height:28px;font-size:14px;border-radius:9px}
  .nav-actions .btn-sm{padding:8px 16px;font-size:13px}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;height:60px;font-size:11px;color:var(--text-3);position:relative;
    transition:color .22s var(--ease);
  }
  .tab-item svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.6}
  .tab-item.is-active{color:var(--ink);font-weight:600}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;width:24px;height:3px;
    border-radius:0 0 3px 3px;background:var(--orange);
  }
  .cat-hero h1{font-size:clamp(1.6rem,6vw,2rem)}
  .cat-hero-copy p{font-size:15.5px;margin-top:16px}
  .hero-actions{margin-top:24px}
  .hero-actions .btn{flex:1;min-width:140px;padding:12px 18px;font-size:14px}
  .step{padding:22px 20px}
  .steps{grid-template-columns:1fr;gap:12px}
  .faq-item summary{font-size:15.5px;padding:16px 18px}
  .faq-panel{padding:0 18px 18px;font-size:14.5px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:22px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:130px}
  .cta-wrap{padding:8px 0 48px}
  .site-footer{padding:48px 0 0;margin-top:8px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:32px;font-size:12px}
  .hz-body{padding:22px 20px}
  .hz-body h3{font-size:18px}
  .hz-body p{font-size:14.5px}
}
@media (max-width:520px){
  .nav-actions .btn-primary{display:none}
  .stat-bar{grid-template-columns:1fr}
  .stat{padding:16px 18px}
  .stat + .stat{border-left:none;border-top:1px solid var(--line)}
}