/* roulang page: index */
:root{
  --ink-900:#10232B;
  --ink-700:#2E4650;
  --ink-500:#5B7280;
  --ink-300:#A9B8BF;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E1E8EB;
  --primary:#0F5C6B;
  --primary-dark:#0A4653;
  --primary-soft:#E7F1F2;
  --accent:#C0492E;
  --ok:#1E8A6E;
  --warn:#B8791F;
  --panel:#0B3A45;
  --panel-line:rgba(255,255,255,.14);
  --neon:#5AC8D6;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,35,43,.05);
  --shadow-2:0 10px 30px -12px rgba(15,92,107,.18);
  --shadow-3:0 18px 50px -20px rgba(15,92,107,.28);
  --space-block:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-500);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;background:var(--primary);color:#fff;
  padding:12px 20px;border-radius:0 0 var(--radius-sm) 0;
}
.skip-link:focus{left:0;color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1200px){.container{padding-left:32px;padding-right:32px;}}
.section{padding-block:56px;}
@media(min-width:768px){.section{padding-block:72px;}}
@media(min-width:1024px){.section{padding-block:var(--space-block);}}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{font-size:26px;line-height:1.35;}
@media(min-width:768px){.section-head h2{font-size:30px;}}
.section-head p{margin-top:12px;font-size:14px;line-height:1.8;color:var(--ink-500);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--radius-pill);
  margin-bottom:16px;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px;}
@media(min-width:1024px){.nav-inner{height:72px;}}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink-900);}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--primary);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text b{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--ink-900);}
.logo-text span{font-size:11px;font-weight:500;color:var(--ink-500);letter-spacing:.14em;margin-top:2px;}
@media(min-width:1024px){.logo-text b{font-size:18px;} .logo-text span{font-size:12px;}}
.nav-links{display:none;align-items:center;gap:4px;}
@media(min-width:1024px){.nav-links{display:flex;}}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-700);transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--primary-soft);color:var(--primary);}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 22px -14px rgba(192,73,46,.9);}
.btn-accent:hover{background:#A63D25;color:#fff;transform:translateY(-1px);}
.btn-ghost{background:var(--surface);color:var(--ink-700);border-color:var(--line);}
.btn-ghost:hover{background:var(--primary-soft);border-color:rgba(15,92,107,.3);color:var(--primary);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(2px);}
.nav-cta{display:none;}
@media(min-width:1024px){.nav-cta{display:inline-flex;}}
.burger{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-700);cursor:pointer;
}
.burger:hover{background:var(--primary-soft);color:var(--primary);}
@media(min-width:1024px){.burger{display:none;}}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,58,69,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:120;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:88vw;background:#fff;z-index:130;
  transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:-24px 0 60px -30px rgba(11,58,69,.5);overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-body{padding:16px 20px 28px;display:flex;flex-direction:column;gap:6px;}
.drawer-body .nav-link{padding:14px 14px;font-size:16px;}
.drawer-body .nav-link.active::after{display:none;}
.drawer-foot{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.drawer-note{font-size:13px;line-height:1.7;color:var(--ink-500);margin-top:14px;}

/* ---------- hero ---------- */
.hero{padding-block:44px 52px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);}
@media(min-width:1024px){.hero{padding-block:64px 72px;}}
.hero-grid{display:grid;gap:36px;align-items:center;}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.03fr .97fr;gap:56px;}}
.hero h1{
  font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.85;color:var(--ink-500);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-actions .btn{width:100%;}
@media(min-width:520px){.hero-actions .btn{width:auto;}}
.hero-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;
  color:var(--ink-700);background:var(--surface);border:1px solid var(--line);
  padding:6px 12px;border-radius:var(--radius-pill);
}
.tag svg{color:var(--ok);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-md);border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.mini-stat{
  position:absolute;left:16px;bottom:-18px;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;padding:12px 16px;box-shadow:var(--shadow-3);min-width:170px;
}
.mini-stat b{display:block;font-size:24px;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.mini-stat span{font-size:12px;color:var(--ink-500);}
@media(min-width:1024px){.mini-stat{left:-20px;bottom:-22px;}}

/* ---------- metrics panel ---------- */
.panel{
  background:var(--panel);border-radius:20px;padding:32px 24px;color:#C9DBE0;
  position:relative;overflow:hidden;
}
.panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(90,200,214,.28),rgba(90,200,214,0) 70%);pointer-events:none;
}
@media(min-width:768px){.panel{padding:44px 40px;}}
.panel-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:28px;}
.panel-head h2{color:#fff;font-size:24px;}
@media(min-width:768px){.panel-head h2{font-size:28px;}}
.panel-head p{font-size:14px;color:#A9C4CC;margin:10px 0 0;max-width:44em;}
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
@media(min-width:1024px){.metrics{grid-template-columns:repeat(4,1fr);gap:20px;}}
.metric{
  background:rgba(255,255,255,.06);border:1px solid var(--panel-line);border-radius:14px;
  padding:18px 16px 16px;position:relative;overflow:hidden;
}
.metric::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--neon);opacity:.85;}
.metric.accent::before{background:var(--accent);}
.metric span{display:block;font-size:13px;color:#A9C4CC;}
.metric b{
  display:block;font-size:32px;line-height:1.25;color:#fff;margin-top:6px;
  font-variant-numeric:tabular-nums;font-weight:700;
}
@media(min-width:1024px){.metric b{font-size:36px;}}
.metric small{display:block;font-size:12px;color:var(--neon);margin-top:4px;}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;}
@media(min-width:768px){.bento{gap:24px;}}
.bento-item{
  grid-column:span 12;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:10px;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.bento-item:hover{border-color:rgba(15,92,107,.3);box-shadow:var(--shadow-3);transform:translateY(-1px);}
@media(min-width:768px){
  .bento-lg{grid-column:span 12;}
  .bento-sm{grid-column:span 6;}
  .bento-third{grid-column:span 6;}
}
@media(min-width:1024px){
  .bento-lg{grid-column:span 6;}
  .bento-sm{grid-column:span 3;}
  .bento-third{grid-column:span 4;}
}
.bento-lg{padding:0;overflow:hidden;gap:0;}
.bento-lg img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.bento-lg-body{padding:24px;display:flex;flex-direction:column;gap:10px;}
.bento-item h3{font-size:20px;line-height:1.5;font-weight:600;}
.bento-item p{font-size:14px;line-height:1.8;color:var(--ink-500);}
.bento-icon{
  width:40px;height:40px;border-radius:11px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.bento-list{display:flex;flex-direction:column;gap:8px;margin-top:4px;}
.bento-list li{display:flex;gap:8px;font-size:14px;color:var(--ink-700);line-height:1.7;}
.bento-list svg{flex:0 0 auto;color:var(--ok);margin-top:5px;}

/* ---------- compare ---------- */
.compare{display:grid;gap:20px;}
@media(min-width:900px){.compare{grid-template-columns:1fr 1fr;gap:28px;}}
.compare-card{border-radius:var(--radius-md);padding:24px;background:#EFF3F4;border:1px solid var(--line);}
.compare-card.right{background:var(--surface);border:1px solid rgba(15,92,107,.45);box-shadow:var(--shadow-2);position:relative;}
.compare-card h3{font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.compare-badge{
  position:absolute;top:-12px;left:24px;background:var(--primary);color:#fff;font-size:12px;
  font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);letter-spacing:.02em;
}
.compare-row{display:flex;gap:10px;padding:14px 0;border-bottom:1px solid rgba(16,35,43,.08);font-size:14px;line-height:1.7;}
.compare-row:last-child{border-bottom:none;padding-bottom:0;}
.compare-row svg{flex:0 0 auto;margin-top:4px;}
.compare-card .ic-ok{color:var(--ok);}
.compare-card .ic-dash{color:var(--ink-300);}
.compare-row b{display:block;color:var(--ink-900);font-weight:600;}
.compare-row span{color:var(--ink-500);}
.compare-note{margin-top:18px;font-size:13px;color:var(--ink-500);}

/* ---------- CMS ---------- */
.cms-grid{display:grid;gap:20px;}
@media(min-width:1024px){.cms-grid{grid-template-columns:7fr 5fr;gap:28px;}}
.cms-featured{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .2s ease,box-shadow .2s ease;
}
.cms-featured:hover{border-color:rgba(15,92,107,.3);box-shadow:var(--shadow-3);}
.cms-featured-media{display:block;overflow:hidden;}
.cms-featured-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s ease;}
.cms-featured:hover .cms-featured-media img{transform:scale(1.02);}
.cms-featured-body{padding:22px;}
@media(min-width:768px){.cms-featured-body{padding:26px;}}
.cms-featured-body h3{font-size:20px;line-height:1.5;margin:10px 0;}
.cms-featured-body h3 a{color:var(--ink-900);}
.cms-featured-body h3 a:hover{color:var(--primary);}
.badge{
  display:inline-flex;align-items:center;background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-pill);
}
.meta-time{font-size:13px;color:var(--ink-500);font-variant-numeric:tabular-nums;}
.cms-list{display:flex;flex-direction:column;gap:12px;}
.cms-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  transition:background .2s ease,border-color .2s ease;
}
.cms-item:hover{background:rgba(231,241,242,.5);border-color:rgba(15,92,107,.3);}
.cms-item-link{display:block;padding:16px 18px;}
.cms-item-title{font-size:16px;line-height:1.55;font-weight:600;color:var(--ink-900);margin:8px 0 6px;}
.cms-item:hover .cms-item-title{color:var(--primary);}
.cms-item-sum{font-size:13px;line-height:1.75;color:var(--ink-500);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-empty{
  border:1px dashed #D6E0E3;border-radius:var(--radius-md);min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--surface);color:var(--ink-500);font-size:15px;text-align:center;padding:24px;
}
.cms-empty svg{color:var(--ink-300);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;gap:28px;}
@media(min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:48px;}}
.faq-aside h2{font-size:26px;line-height:1.35;}
@media(min-width:768px){.faq-aside h2{font-size:30px;}}
.faq-aside p{margin:14px 0 22px;font-size:14px;line-height:1.8;}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:4px 22px;box-shadow:var(--shadow-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex:0 0 auto;width:22px;height:22px;display:flex;align-items:center;justify-content:center;
  color:var(--primary);transition:transform .25s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--primary);}
.faq-answer{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-500);}
.faq-item[open] .faq-answer{background:rgba(231,241,242,.4);border-radius:8px;padding:12px 14px 16px;}

/* ---------- form ---------- */
.contact-grid{display:grid;gap:28px;}
@media(min-width:1024px){.contact-grid{grid-template-columns:5fr 7fr;gap:48px;align-items:start;}}
.contact-info h2{font-size:26px;line-height:1.35;}
@media(min-width:768px){.contact-info h2{font-size:30px;}}
.contact-points{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
.contact-points li{display:flex;gap:12px;font-size:14px;line-height:1.75;color:var(--ink-700);}
.contact-points svg{flex:0 0 auto;color:var(--primary);margin-top:4px;}
.contact-block{
  margin-top:24px;background:var(--primary-soft);border-radius:14px;padding:18px 20px;
  font-size:14px;line-height:1.8;color:var(--ink-700);
}
.contact-block b{display:block;color:var(--primary);font-size:15px;margin-bottom:4px;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-2);}
@media(min-width:768px){.form-card{padding:32px;}}
.form-grid{display:grid;gap:16px;}
@media(min-width:768px){.form-grid{grid-template-columns:1fr 1fr;}}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--ink-700);}
.field label .req{color:var(--accent);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;
  font-size:15px;color:var(--ink-900);padding:12px 14px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input,.field select{height:48px;}
.field textarea{min-height:118px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,92,107,.18);
}
.form-hint{font-size:12px;color:var(--ink-500);}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.7;color:var(--ink-500);}
.check-line input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);}
.form-note{font-size:12px;color:var(--ink-500);margin-top:12px;}

/* ---------- cta strip ---------- */
.cta-strip{
  background:var(--panel);border-radius:20px;padding:32px 24px;color:#C9DBE0;
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;
}
@media(min-width:900px){.cta-strip{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;gap:32px;}}
.cta-strip h2{color:#fff;font-size:22px;line-height:1.4;}
@media(min-width:768px){.cta-strip h2{font-size:26px;}}
.cta-strip p{margin:8px 0 0;font-size:14px;color:#A9C4CC;max-width:44em;}
.cta-strip .btn{flex:0 0 auto;width:100%;}
@media(min-width:520px){.cta-strip .btn{width:auto;}}

/* ---------- footer ---------- */
.site-footer{background:var(--panel);color:#C9DBE0;margin-top:56px;padding-block:52px 24px;}
@media(min-width:1024px){.site-footer{margin-top:88px;padding-block:64px 28px;}}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:#8FB3BB;}
.footer-brand .logo-mark{background:#125A67;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9C4CC;margin:16px 0 0;max-width:26em;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;font-weight:600;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#A9C4CC;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-contact{font-size:14px;line-height:1.9;color:#A9C4CC;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--panel-line);
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8FB3BB;
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;gap:24px;}}
.footer-bottom span{display:block;}

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

/* roulang page: category1 */
:root{
    --ink-900:#10232B;
    --ink-700:#2E4650;
    --ink-500:#5B7280;
    --ink-300:#9AAEB6;
    --bg:#F6F8F9;
    --surface:#FFFFFF;
    --line:#E1E8EB;
    --primary:#0F5C6B;
    --primary-dark:#0A4653;
    --primary-soft:#E7F1F2;
    --accent:#C0492E;
    --accent-dark:#A53A22;
    --ok:#1E8A6E;
    --warn:#B8791F;
    --footer-bg:#0B3A45;
    --footer-text:#C9DBE0;
    --r-btn:10px;
    --r-card:16px;
    --r-img:14px;
    --shadow-1:0 1px 2px rgba(16,35,43,.05);
    --shadow-2:0 10px 30px -12px rgba(15,92,107,.18);
    --shadow-3:0 18px 50px -20px rgba(15,92,107,.28);
    --font:"PingFang SC","HarmonyOS 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:1.85;
    color:var(--ink-500);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
  ul,ol{list-style:none;padding:0;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;border:0;}
  button{font-family:inherit;}
  svg{display:block;}

  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

  .skip-link{
    position:absolute;left:-9999px;top:0;z-index:200;
    background:#fff;color:var(--primary);padding:10px 18px;
    border-radius:0 0 var(--r-btn) 0;font-size:14px;font-weight:600;
    box-shadow:var(--shadow-2);
  }
  .skip-link:focus{left:0;top:0;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:768px){.container{padding:0 24px;}}
  @media (min-width:1024px){.container{padding:0 32px;}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    height:72px;
    display:flex;align-items:center;justify-content:space-between;gap:24px;
  }
  @media (max-width:1023px){.nav-inner{height:60px;}}

  .logo{display:inline-flex;align-items:center;gap:10px;}
  .logo-mark{
    width:32px;height:32px;flex:none;
    border-radius:9px;background:var(--primary);
    display:inline-flex;align-items:center;justify-content:center;
  }
  .logo-text{display:inline-flex;align-items:baseline;gap:6px;line-height:1;}
  .logo-text b{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
  .logo-text span{
    font-size:12px;font-weight:500;color:var(--primary);
    background:var(--primary-soft);padding:3px 7px;border-radius:6px;
  }

  .nav-links{display:flex;align-items:center;gap:6px;}
  .nav-link{
    position:relative;
    display:inline-block;
    padding:9px 14px;
    border-radius:8px;
    font-size:15px;
    color:var(--ink-700);
    transition:background .2s ease,color .2s ease;
  }
  .nav-link:hover{background:var(--primary-soft);color:var(--primary);}
  .nav-link.active{color:var(--primary);font-weight:700;}
  .nav-link.active::after{
    content:"";
    position:absolute;left:14px;right:14px;bottom:-4px;
    height:2px;border-radius:2px;background:var(--primary);
  }

  .header-actions{display:flex;align-items:center;gap:12px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;
    border:1px solid transparent;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;
    cursor:pointer;
    transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  .btn:active{transform:translateY(0);}
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-accent{background:var(--accent);color:#fff;}
  .btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 14px 32px -16px rgba(192,73,46,.65);}
  .btn-ghost{background:#fff;color:var(--ink-700);border-color:var(--line);}
  .btn-ghost:hover{background:var(--primary-soft);border-color:rgba(15,92,107,.32);color:var(--primary);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn-block{width:100%;}

  .nav-toggle{
    display:none;
    width:42px;height:42px;
    align-items:center;justify-content:center;
    background:#fff;border:1px solid var(--line);border-radius:10px;
    color:var(--ink-700);cursor:pointer;
    transition:background .2s ease,border-color .2s ease,color .2s ease;
  }
  .nav-toggle:hover{background:var(--primary-soft);color:var(--primary);border-color:rgba(15,92,107,.3);}

  @media (max-width:1023px){
    .nav-links{display:none;}
    .header-actions .header-cta{display:none;}
    .nav-toggle{display:inline-flex;}
  }

  /* 移动端抽屉 */
  .drawer-mask{
    position:fixed;inset:0;z-index:80;
    background:rgba(16,35,43,.48);
    opacity:0;visibility:hidden;
    transition:opacity .25s ease,visibility .25s ease;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}

  .nav-drawer{
    position:fixed;top:0;right:0;z-index:90;
    width:320px;max-width:86vw;height:100%;
    background:#fff;
    padding:20px 20px 32px;
    display:flex;flex-direction:column;gap:6px;
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform .28s ease;
    box-shadow:-24px 0 60px -30px rgba(16,35,43,.5);
  }
  .nav-drawer.open{transform:translateX(0);}

  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:16px;margin-bottom:8px;
    border-bottom:1px solid var(--line);
  }
  .drawer-close{
    width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
    background:var(--bg);border:1px solid var(--line);border-radius:9px;
    color:var(--ink-700);cursor:pointer;
    transition:background .2s,color .2s;
  }
  .drawer-close:hover{background:var(--primary-soft);color:var(--primary);}
  .drawer-links{display:flex;flex-direction:column;gap:4px;margin:6px 0 18px;}
  .drawer-links a{
    padding:12px 14px;border-radius:10px;font-size:15px;color:var(--ink-700);
    transition:background .2s,color .2s;
  }
  .drawer-links a:hover{background:var(--primary-soft);color:var(--primary);}
  .drawer-links a.active{background:var(--primary-soft);color:var(--primary);font-weight:700;}
  .drawer-note{
    margin-top:18px;font-size:13px;line-height:1.8;color:var(--ink-500);
    padding-top:16px;border-top:1px solid var(--line);
  }
  body.no-scroll{overflow:hidden;}

  /* ---------- 页头浅色带 ---------- */
  .page-band{
    background:var(--primary-soft);
    border-bottom:1px solid rgba(15,92,107,.12);
    padding:36px 0 40px;
  }
  @media (min-width:1024px){.page-band{padding:44px 0 46px;}}

  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--ink-500);margin-bottom:18px;
  }
  .breadcrumb a{transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
  .breadcrumb .sep{color:var(--ink-300);}
  .breadcrumb .current{color:var(--ink-700);font-weight:600;}

  .page-band h1{
    font-size:clamp(26px,3.6vw,40px);
    line-height:1.28;
    max-width:22em;
  }
  .page-band .lead{
    margin-top:14px;
    font-size:15px;
    line-height:1.85;
    color:var(--ink-700);
    max-width:38em;
  }

  .pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .pill{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid rgba(15,92,107,.16);
    border-radius:999px;
    padding:8px 16px;font-size:14px;color:var(--ink-700);
    transition:border-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  .pill:hover{
    color:var(--primary);border-color:rgba(15,92,107,.45);
    box-shadow:var(--shadow-1);transform:translateY(-1px);
  }
  .pill i{
    font-style:normal;font-variant-numeric:tabular-nums;
    font-size:12px;font-weight:700;color:var(--primary);
  }

  /* ---------- 主布局 ---------- */
  .guide-layout{
    display:grid;
    grid-template-columns:240px minmax(0,1fr);
    gap:56px;
    padding:64px 0 72px;
    align-items:start;
  }
  @media (max-width:1023px){
    .guide-layout{grid-template-columns:1fr;gap:28px;padding:36px 0 56px;}
  }

  .toc{
    position:sticky;top:96px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:20px;
    box-shadow:var(--shadow-1);
  }
  .toc h2{
    font-size:13px;font-weight:700;letter-spacing:.04em;
    color:var(--ink-700);text-transform:uppercase;
    margin-bottom:12px;
  }
  .toc a{
    display:block;
    padding:9px 12px;
    font-size:14px;
    color:var(--ink-500);
    border-radius:8px;
    border-left:2px solid transparent;
    transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .toc a:hover{background:var(--primary-soft);color:var(--primary);}
  .toc a.is-active{
    background:var(--primary-soft);
    color:var(--primary);
    font-weight:600;
    border-left-color:var(--primary);
  }
  @media (max-width:1023px){
    .toc{
      position:static;
      display:flex;gap:8px;
      padding:12px;
      overflow-x:auto;
      border-radius:14px;
      scrollbar-width:none;
    }
    .toc::-webkit-scrollbar{display:none;}
    .toc h2{display:none;}
    .toc a{
      white-space:nowrap;
      border-left:none;
      border:1px solid var(--line);
      border-radius:999px;
      padding:7px 14px;
      font-size:13px;
    }
    .toc a.is-active{border-color:rgba(15,92,107,.4);}
  }

  .panel{margin-bottom:56px;}
  .panel:last-child{margin-bottom:0;}
  @media (max-width:1023px){.panel{margin-bottom:44px;}}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.04em;
    color:var(--primary);
    background:var(--primary-soft);
    border-radius:999px;
    padding:5px 12px;
    margin-bottom:14px;
  }
  .eyebrow::before{
    content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);
  }

  .panel h2{
    font-size:clamp(22px,2.4vw,28px);
    line-height:1.4;
    margin-bottom:12px;
  }
  .panel .sub{
    font-size:15px;line-height:1.85;color:var(--ink-500);
    max-width:40em;
  }

  /* 步骤卡 */
  .steps{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:20px;
    margin-top:28px;
  }
  @media (max-width:900px){.steps{grid-template-columns:1fr;}}
  .step{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:26px 24px;
    box-shadow:var(--shadow-1);
    transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
  }
  .step:hover{
    border-color:rgba(15,92,107,.3);
    box-shadow:var(--shadow-2);
    transform:translateY(-1px);
  }
  .step-num{
    font-size:34px;font-weight:700;line-height:1;
    color:var(--primary);
    font-variant-numeric:tabular-nums;
    letter-spacing:-.02em;
  }
  .step h3{font-size:18px;margin:14px 0 8px;}
  .step p{font-size:15px;line-height:1.8;color:var(--ink-500);}
  .step .step-tip{
    display:inline-block;margin-top:14px;
    font-size:12px;font-weight:600;color:var(--ok);
    background:rgba(30,138,110,.1);
    border-radius:999px;padding:4px 10px;
  }

  /* 要点清单 */
  .checks{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:14px;
    margin-top:28px;
  }
  @media (max-width:767px){.checks{grid-template-columns:1fr;}}
  .check{
    display:flex;gap:12px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:12px;
    padding:16px 18px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .check:hover{border-color:rgba(15,92,107,.28);box-shadow:var(--shadow-1);}
  .check svg{flex:none;margin-top:4px;color:var(--ok);}
  .check b{display:block;font-size:15px;color:var(--ink-900);margin-bottom:3px;}
  .check span{font-size:14px;line-height:1.75;color:var(--ink-500);}

  /* 图文块 */
  .media-card{
    display:grid;
    grid-template-columns:1.08fr 1fr;
    margin-top:30px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--shadow-1);
    transition:box-shadow .25s ease,border-color .25s ease;
  }
  .media-card:hover{border-color:rgba(15,92,107,.28);box-shadow:var(--shadow-2);}
  .media-body{padding:28px 26px;}
  .media-body .tag{
    display:inline-block;font-size:12px;font-weight:600;
    color:var(--primary);background:var(--primary-soft);
    border-radius:999px;padding:4px 10px;margin-bottom:12px;
  }
  .media-body h3{font-size:20px;line-height:1.5;margin-bottom:10px;}
  .media-body p{font-size:15px;line-height:1.85;color:var(--ink-500);}
  .mini-list{margin-top:14px;display:grid;gap:8px;}
  .mini-list li{
    position:relative;padding-left:18px;
    font-size:14px;line-height:1.8;color:var(--ink-700);
  }
  .mini-list li::before{
    content:"";position:absolute;left:0;top:11px;
    width:6px;height:6px;border-radius:50%;background:var(--primary);
  }
  .media-figure{min-height:260px;background:#E9F1F2;}
  .media-figure img{width:100%;height:100%;object-fit:cover;}
  @media (max-width:900px){
    .media-card{grid-template-columns:1fr;}
    .media-figure{order:-1;min-height:220px;}
    .media-body{padding:24px 20px;}
  }

  /* 注意事项 */
  .warns{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px;
    margin-top:28px;
  }
  @media (max-width:900px){.warns{grid-template-columns:1fr;}}
  .warn-card{
    background:rgba(184,121,31,.09);
    border:1px solid rgba(184,121,31,.24);
    border-left:3px solid var(--warn);
    border-radius:14px;
    padding:22px;
  }
  .warn-card .warn-head{
    display:flex;align-items:center;gap:10px;
    margin-bottom:10px;
  }
  .warn-card .warn-head svg{color:var(--warn);flex:none;}
  .warn-card h3{font-size:17px;line-height:1.5;}
  .warn-card p{font-size:14.5px;line-height:1.85;color:var(--ink-700);}

  /* FAQ */
  .faq-list{
    margin-top:24px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:0 24px;
    box-shadow:var(--shadow-1);
  }
  @media (max-width:639px){.faq-list{padding:0 18px;}}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-sum{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;
    font-size:16px;font-weight:600;color:var(--ink-900);
    cursor:pointer;list-style:none;
    transition:color .2s ease;
  }
  .faq-sum::-webkit-details-marker{display:none;}
  .faq-sum:hover{color:var(--primary);}
  .faq-icon{
    flex:none;width:26px;height:26px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--primary-soft);color:var(--primary);
    transition:transform .25s ease,background .2s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(15,92,107,.16);}
  .faq-body{
    padding:0 0 20px;
    font-size:15px;line-height:1.85;color:var(--ink-500);
    max-width:46em;
  }
  .faq-item[open] .faq-body{
    background:rgba(231,241,242,.4);
    border-radius:10px;
    padding:14px 16px 16px;
    margin-bottom:18px;
  }

  /* CTA 条 */
  .cta-band{
    background:var(--footer-bg);
    border-radius:var(--r-card);
    padding:40px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    color:#fff;
    box-shadow:var(--shadow-2);
  }
  .cta-band h2{
    color:#fff;
    font-size:clamp(20px,2.2vw,26px);
    line-height:1.4;
    margin-bottom:10px;
  }
  .cta-band p{
    font-size:14.5px;line-height:1.85;color:var(--footer-text);max-width:36em;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}
  .cta-band .btn-ghost{
    background:transparent;color:#fff;border-color:rgba(255,255,255,.3);
  }
  .cta-band .btn-ghost:hover{
    background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6);
  }
  @media (max-width:900px){
    .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 160px;}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--footer-bg);
    color:var(--footer-text);
    padding:56px 0 0;
    margin-top:72px;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1.2fr;
    gap:40px;
  }
  @media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
  @media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:28px;}}

  .footer-brand .logo-text b{color:#fff;}
  .footer-brand .logo-text span{color:var(--footer-text);background:rgba(255,255,255,.12);}
  .footer-brand .logo-mark{background:rgba(255,255,255,.14);}
  .footer-brand p{
    margin-top:14px;
    font-size:14px;line-height:1.85;color:var(--footer-text);
    max-width:32ch;
  }

  .footer-col h3{
    font-size:14px;font-weight:600;color:#fff;
    margin-bottom:14px;letter-spacing:.02em;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{
    font-size:14px;color:var(--footer-text);
    transition:color .2s ease;
  }
  .footer-col a:hover{color:#fff;text-decoration:underline;}
  .footer-contact{font-size:14px;line-height:1.9;color:var(--footer-text);}

  .footer-bottom{
    margin-top:48px;
    border-top:1px solid rgba(255,255,255,.12);
    padding:20px 0 24px;
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:13px;line-height:1.7;color:var(--footer-text);
  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  }

/* roulang page: article */
:root{
  --ink-900:#10232B;
  --ink-700:#2E4650;
  --ink-500:#5B7280;
  --ink-300:#9AAEB6;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E1E8EB;
  --primary:#0F5C6B;
  --primary-dark:#0A4653;
  --primary-soft:#E7F1F2;
  --accent:#C0492E;
  --accent-dark:#A63D25;
  --ok:#1E8A6E;
  --warn:#B8791F;
  --footer-bg:#0B3A45;
  --footer-text:#C9DBE0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --shadow-1:0 1px 2px rgba(16,35,43,.05);
  --shadow-2:0 10px 30px -12px rgba(15,92,107,.18);
  --shadow-3:0 18px 50px -20px rgba(15,92,107,.28);
  --container:1200px;
}
*,*::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;
  background:var(--bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:120;
  background:var(--primary);color:#fff;padding:10px 18px;
  border-radius:0 0 var(--r-sm) 0;font-size:14px;font-weight:600;
}
.skip-link:focus{left:0;color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1280px){.container{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-1);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
@media (min-width:1024px){.header-inner{height:72px}}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900)}
.logo:hover{color:var(--ink-900)}
.logo-mark{
  width:32px;height:32px;border-radius:var(--r-sm);background:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.logo-text{display:inline-flex;align-items:baseline;gap:6px;line-height:1}
.logo-text b{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink-900)}
.logo-text span{font-size:12px;font-weight:500;color:var(--ink-500)}
.nav-links{display:none;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--primary-soft);color:var(--primary)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px}
.header-cta{display:none}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-700);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.menu-toggle:hover{background:var(--primary-soft);color:var(--primary);border-color:rgba(15,92,107,.28)}
@media (min-width:1024px){
  .nav-links{display:flex}
  .menu-toggle{display:none}
  .header-cta{display:inline-flex}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn:active{transform:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px -16px rgba(192,73,46,.7)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-700)}
.btn-ghost:hover{background:var(--primary-soft);border-color:rgba(15,92,107,.3);color:var(--primary)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(2px)}

/* ---------- Badge / Tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-500)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:13px;color:var(--ink-500);margin-bottom:16px;
}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--ink-300)}
.crumb-current{
  display:inline-block;max-width:230px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom;color:var(--ink-700);
}
@media (min-width:768px){.crumb-current{max-width:420px}}

/* ---------- Article head ---------- */
.article-head{background:#fff;border-bottom:1px solid var(--line);padding:32px 0 28px}
.article-title{
  font-size:clamp(28px,3.6vw,40px);line-height:1.28;letter-spacing:-.01em;
  margin-top:14px;font-weight:700;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--ink-500);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-300)}

/* ---------- Article layout ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:80px 0}}
.article-section{padding:28px 0 48px}
@media (min-width:768px){.article-section{padding:36px 0 64px}}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}}
.article-main{min-width:0}
.article-cover{
  margin:0 0 24px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);background:#E9F1F2;box-shadow:var(--shadow-1);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-1);
}
@media (min-width:768px){.article-card{padding:36px 40px}}

/* ---------- Article body ---------- */
.article-body{font-size:16px;line-height:1.85;color:var(--ink-700);word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:18px 0}
.article-body h2{
  position:relative;margin:40px 0 16px;padding:0 0 12px 14px;
  font-size:26px;line-height:1.4;font-weight:700;
  border-bottom:1px solid var(--line);scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:22px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{
  margin:28px 0 12px;font-size:20px;line-height:1.5;font-weight:600;
  scroll-margin-top:96px;
}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600}
.article-body ul,.article-body ol{margin:18px 0;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-radius:8px;
  background:var(--primary-soft);border-left:3px solid var(--primary);
}
.article-body blockquote p{margin:0;color:var(--ink-700)}
.article-body img{border-radius:12px;margin:24px auto;border:1px solid var(--line)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-500);text-align:center}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:24px 0;font-size:14px;font-variant-numeric:tabular-nums;
}
.article-body th,.article-body td{
  padding:12px 14px;border-bottom:1px solid var(--line);
  text-align:left;white-space:nowrap;
}
.article-body th{background:var(--primary-soft);color:var(--ink-900);font-weight:600}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(15,92,107,.28)}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary)}
.article-body strong{color:var(--ink-900);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:280px;padding:40px 20px;text-align:center;
  border:1px dashed #D6E0E3;border-radius:var(--r-md);color:var(--ink-500);
}
.empty-state svg{color:var(--ink-300)}
.empty-state p{font-size:16px;color:var(--ink-700)}

/* ---------- Tags & back ---------- */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px}
.tag-label{font-size:13px;color:var(--ink-500)}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-700);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.tag:hover{background:var(--primary-soft);border-color:rgba(15,92,107,.3);color:var(--primary)}
.article-back{margin-top:24px}

/* ---------- Sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;min-width:0}
@media (min-width:1024px){.sidebar{position:sticky;top:96px;align-self:start}}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:16px;font-weight:700;margin-bottom:14px;
}
.side-title::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--primary)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:7px 10px;border-left:2px solid transparent;
  border-radius:0 6px 6px 0;font-size:14px;line-height:1.6;color:var(--ink-500);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary)}
.toc-list a.is-active{
  color:var(--primary);font-weight:600;
  border-left-color:var(--primary);background:var(--primary-soft);
}
.toc-empty{font-size:13px;color:var(--ink-300);padding:6px 10px;line-height:1.7}
.rel-item{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;padding:10px;border-radius:12px;transition:background .18s ease}
.rel-item + .rel-item{margin-top:4px}
.rel-item:hover{background:var(--primary-soft)}
.rel-item img{width:96px;height:72px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.rel-item b{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14px;font-weight:600;line-height:1.5;color:var(--ink-900);
}
.rel-item small{display:block;margin-top:4px;font-size:12px;line-height:1.6;color:var(--ink-500)}
.side-cta{
  background:var(--primary-soft);border:1px solid rgba(15,92,107,.18);
  border-radius:var(--r-md);padding:24px;
}
.side-cta h2{font-size:18px;margin-bottom:8px}
.side-cta p{font-size:14px;line-height:1.75;color:var(--ink-700);margin-bottom:16px}

/* ---------- Related cards ---------- */
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:32px;
}
.section-title{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.section-desc{margin-top:8px;font-size:14px;color:var(--ink-500);max-width:680px;line-height:1.75}
.card-grid-3{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.card-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.info-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.info-card:hover{border-color:rgba(15,92,107,.3);box-shadow:var(--shadow-3);transform:translateY(-1px)}
.info-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .2s ease}
.info-card:hover img{transform:scale(1.02)}
.info-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.info-body h3{font-size:18px;font-weight:600;line-height:1.5}
.info-body p{font-size:14px;line-height:1.75;color:var(--ink-500)}
.info-body .link-arrow{margin-top:auto;padding-top:6px}

/* ---------- CTA band ---------- */
.cta-band{
  display:flex;flex-direction:column;gap:22px;
  padding:32px 24px;border-radius:var(--r-lg);
  background:var(--primary);color:#fff;
}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 48px}
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,26px);font-weight:700}
.cta-band p{margin-top:10px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.82);max-width:620px}

/* ---------- Drawer ---------- */
.drawer-backdrop{
  position:fixed;inset:0;z-index:70;background:rgba(11,58,69,.45);
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:320px;max-width:88vw;background:#fff;
  display:flex;flex-direction:column;gap:18px;
  padding:20px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-20px 0 50px -30px rgba(16,35,43,.6);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-700);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--primary-soft);color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:12px 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;color:var(--ink-700);
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--primary-soft);color:var(--primary)}
.drawer-tip{font-size:13px;line-height:1.7;color:var(--ink-500)}
.drawer .btn{width:100%}

/* ---------- Footer ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(201,219,224,.75)}
.footer-brand p{
  margin-top:16px;font-size:14px;line-height:1.85;
  color:rgba(201,219,224,.8);max-width:340px;
}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(201,219,224,.82)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(201,219,224,.82)}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(201,219,224,.68);line-height:1.7;
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --ink-900:#10232B;
  --ink-700:#2E4650;
  --ink-500:#5B7280;
  --ink-300:#9FB1B8;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E1E8EB;
  --line-strong:#D6E0E3;
  --primary:#0F5C6B;
  --primary-dark:#0A4653;
  --primary-soft:#E7F1F2;
  --accent:#C0492E;
  --accent-dark:#A63C24;
  --ok:#1E8A6E;
  --warn:#B8791F;
  --night:#0B3A45;
  --night-soft:#0E4753;
  --night-text:#C9DBE0;
  --radius-btn:10px;
  --radius-card:16px;
  --shadow-sm:0 1px 2px rgba(16,35,43,.05);
  --shadow-card:0 10px 30px -12px rgba(15,92,107,.18);
  --shadow-hover:0 18px 50px -20px rgba(15,92,107,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.tabular{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;background:var(--primary);color:#fff;
  padding:10px 18px;border-radius:var(--radius-btn);font-size:14px;transition:top .2s;
}
.skip-link:focus{top:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--surface);
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.header-inner{display:flex;align-items:center;gap:20px;height:60px}
@media(min-width:1024px){.header-inner{height:72px;gap:28px}}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);
  display:grid;place-items:center;flex-shrink:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.logo-text span{font-size:12px;font-weight:500;color:var(--ink-500);margin-top:1px}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;padding:8px 14px;border-radius:8px;font-size:15px;font-weight:500;
  color:var(--ink-700);transition:background .2s,color .2s;
}
.nav-link:hover{background:var(--primary-soft);color:var(--primary-dark)}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media(min-width:1024px){.header-actions{margin-left:0}}
.menu-toggle{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--surface);
  display:grid;place-items:center;color:var(--ink-700);transition:background .2s,border-color .2s,color .2s;
}
.menu-toggle:hover{background:var(--primary-soft);border-color:rgba(15,92,107,.3);color:var(--primary-dark)}
@media(min-width:1024px){.menu-toggle{display:none}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-700)}
.btn-ghost:hover{background:var(--primary-soft);border-color:rgba(15,92,107,.3);color:var(--primary-dark)}
.btn-night{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn-night:hover{background:rgba(255,255,255,.12);border-color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary)}
.link-arrow svg{transition:transform .2s}
.link-arrow:hover svg{transform:translateX(3px)}
.link-arrow:hover{color:var(--primary-dark)}

/* ---------- drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(10,35,43,.45);z-index:90;opacity:0;
  transition:opacity .25s;pointer-events:none;
}
.drawer-overlay.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;z-index:100;width:320px;max-width:88vw;height:100%;
  background:var(--surface);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:20px;padding:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;
  color:var(--ink-700);transition:background .2s,color .2s;
}
.drawer-close:hover{background:var(--primary-soft);color:var(--primary-dark)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--line);padding-top:16px}
.drawer-link{
  padding:12px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink-700);
  transition:background .2s,color .2s;
}
.drawer-link:hover{background:var(--primary-soft);color:var(--primary-dark)}
.drawer-link.active{background:var(--primary-soft);color:var(--primary);font-weight:700}
.drawer-note{font-size:13px;line-height:1.7;color:var(--ink-500)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;border-bottom:1px solid var(--line);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(246,248,249,.85)}
.page-hero .container{position:relative;z-index:1;padding-top:32px;padding-bottom:48px}
@media(min-width:1024px){.page-hero .container{padding-top:40px;padding-bottom:64px}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.breadcrumb a{color:var(--ink-500);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--ink-300)}
.breadcrumb .current{color:var(--ink-900);font-weight:600}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;margin-top:20px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;
}
.hero-title{
  margin-top:14px;font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;
  letter-spacing:-.01em;color:var(--ink-900);max-width:900px;
}
.hero-lead{margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-500);max-width:640px}
.hero-stats{
  margin-top:28px;display:flex;gap:16px;overflow-x:auto;padding-bottom:6px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.hero-stats::-webkit-scrollbar{height:4px}
.hero-stats::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:4px}
.stat-card{
  flex:0 0 auto;min-width:200px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-sm);
}
@media(min-width:768px){
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);overflow:visible;padding-bottom:0}
  .stat-card{min-width:0}
}
.stat-card{border-top:3px solid var(--primary)}
.stat-card.is-accent{border-top-color:var(--accent)}
.stat-value{font-size:32px;line-height:1.2;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums}
.stat-label{margin-top:4px;font-size:13px;color:var(--ink-500)}

/* ---------- sections ---------- */
.section{padding-block:56px}
@media(min-width:768px){.section{padding-block:72px}}
@media(min-width:1024px){.section{padding-block:88px}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:32px;
}
.section-title{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--ink-900);letter-spacing:-.005em}
.section-desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-500);max-width:640px}
.legend{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500)}

/* ---------- chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;white-space:nowrap;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-ok{background:rgba(30,138,110,.12);color:var(--ok)}
.badge-warn{background:rgba(184,121,31,.14);color:var(--warn)}
.badge-neutral{background:rgba(15,92,107,.1);color:var(--primary)}

/* ---------- data list ---------- */
.data-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.data-row{
  display:grid;grid-template-columns:1.7fr .9fr 1.2fr .8fr;gap:16px;align-items:center;
  padding:0 24px;min-height:58px;border-bottom:1px solid var(--line);
  transition:background .2s;
}
.data-row:last-child{border-bottom:0}
.data-row:hover{background:rgba(231,241,242,.55)}
.data-row.is-head{
  min-height:48px;background:var(--primary-soft);font-size:13px;font-weight:700;color:var(--primary-dark);
}
.data-row.is-head:hover{background:var(--primary-soft)}
.data-name{font-size:15px;font-weight:600;color:var(--ink-900)}
.data-time{font-size:14px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.cell-label{display:none}
@media(max-width:768px){
  .data-row.is-head{display:none}
  .data-row{
    grid-template-columns:1fr;gap:8px;padding:16px 18px;min-height:0;
  }
  .data-row:hover{background:rgba(231,241,242,.55)}
  .cell-label{display:block;font-size:12px;font-weight:600;color:var(--ink-300);margin-bottom:2px}
  .data-name{font-size:15px}
}
.data-footnote{margin-top:16px;font-size:13px;line-height:1.7;color:var(--ink-500)}

/* ---------- topic cards ---------- */
.topic-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:1024px){.topic-grid{grid-template-columns:7fr 5fr;align-items:stretch}}
.topic-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:box-shadow .25s,border-color .25s;
}
.topic-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(15,92,107,.3)}
.topic-media{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.topic-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;transition:transform .2s}
.topic-card:hover .topic-media img{transform:scale(1.02)}
.topic-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1}
.topic-title{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink-900)}
.topic-text{font-size:15px;line-height:1.8;color:var(--ink-500)}
.topic-list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-700)}
.topic-list li{display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.topic-list li svg{flex-shrink:0;margin-top:4px;color:var(--ok)}
.topic-card.is-night{
  background:var(--night);border-color:var(--night);color:var(--night-text);
  justify-content:space-between;
}
.topic-card.is-night:hover{box-shadow:0 20px 50px -20px rgba(11,58,69,.55)}
.topic-card.is-night .topic-title{color:#fff}
.topic-card.is-night .topic-text{color:var(--night-text)}
.topic-card.is-night .topic-list li{color:var(--night-text)}
.topic-card.is-night .topic-list li svg{color:#7FD3C0}
.topic-kicker{
  display:inline-flex;width:fit-content;background:rgba(255,255,255,.14);color:#fff;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
}
.topic-card.is-night .topic-body{padding:28px}

/* ---------- explain ---------- */
.explain-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:1024px){.explain-grid{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
.explain-title{font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:700;color:var(--ink-900)}
.explain-sub{margin-top:12px;font-size:14px;color:var(--ink-500)}
@media(min-width:1024px){.explain-right{padding-top:12px}}
.explain-right p{font-size:16px;line-height:1.85;color:var(--ink-500);margin-bottom:18px}
.explain-right p:last-of-type{margin-bottom:0}
.explain-points{
  margin-top:24px;display:grid;gap:12px;
}
@media(min-width:768px){.explain-points{grid-template-columns:1fr 1fr}}
.explain-point{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;
  box-shadow:var(--shadow-sm);
}
.explain-point h3{font-size:15px;font-weight:600;color:var(--ink-900);display:flex;align-items:center;gap:8px}
.explain-point h3 span{
  width:22px;height:22px;border-radius:6px;background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:700;display:grid;place-items:center;flex-shrink:0;
}
.explain-point p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--ink-500)}

/* ---------- faq ---------- */
.faq-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:8px 20px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:6px}
.faq-icon{
  width:24px;height:24px;flex-shrink:0;display:grid;place-items:center;color:var(--primary);
  transition:transform .2s;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open]{background:rgba(231,241,242,.45);border-radius:10px;padding:0 14px}
.faq-item[open] summary{padding:20px 0 12px}
.faq-answer{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-500)}
.faq-answer strong{color:var(--ink-700);font-weight:600}

/* ---------- cta ---------- */
.cta-band{
  background:var(--primary-soft);border:1px solid rgba(15,92,107,.16);border-radius:var(--radius-card);
  padding:28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
@media(min-width:768px){.cta-band{padding:36px 40px}}
.cta-title{font-size:clamp(20px,2.2vw,24px);line-height:1.4;font-weight:700;color:var(--ink-900)}
.cta-text{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-500);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:520px){.cta-actions{width:100%}.cta-actions .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:var(--night-text);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}}
.site-footer .logo-mark{background:rgba(255,255,255,.12)}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:var(--night-text)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--night-text);max-width:320px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--night-text);transition:color .2s}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-contact{font-size:14px;line-height:1.9;color:var(--night-text)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;line-height:1.7;color:rgba(201,219,224,.8);
}
@media(max-width:520px){
  .data-row{padding:16px}
  .topic-body{padding:20px}
  .topic-card.is-night .topic-body{padding:22px}
  .faq-panel{padding:8px 14px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}