/* roulang page: index */
:root{
  --ink:#14171A;
  --ink-2:#3A4046;
  --muted:#6E757C;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DFD8;
  --brand:#14554A;
  --brand-2:#2E8B78;
  --accent:#C8F169;
  --dark:#0F1513;
  --warm:#B4551F;
  --hover-bg:#FBFAF7;
  --radius:6px;
  --radius-btn:2px;
  --shadow-nav:0 8px 24px rgba(20,23,26,.08);
  --sp:96px;
  --font-sans:"Noto Sans SC","Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;

  --bs-primary:#14554A;
  --bs-primary-rgb:20,85,74;
  --bs-body-color:#3A4046;
  --bs-body-bg:#F7F6F2;
  --bs-border-color:#E2DFD8;
  --bs-border-radius:6px;
  --bs-border-radius-sm:2px;
  --bs-border-radius-lg:6px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#14554A;
  --bs-link-hover-color:#2E8B78;
  --bs-emphasis-color:#14171A;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block;background:#EDEAE3;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}

/* ---------- Bootstrap overrides ---------- */
.container,.container-fluid{max-width:1200px;}
.btn{
  border-radius:var(--radius-btn);
  font-weight:600;
  font-size:15px;
  line-height:1;
  box-shadow:none !important;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:active{transform:translateY(1px);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;background:var(--brand);color:#F7F6F2;
  border-radius:var(--radius-btn);font-weight:600;font-size:15px;
}
.btn-main:hover{background:var(--brand-2);color:#F7F6F2;}
.btn-main .arw{transition:transform .2s ease;}
.btn-main:hover .arw{transform:translateX(4px);}
.btn-main.is-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;background:transparent;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--radius-btn);font-weight:600;font-size:15px;
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;background:var(--accent);color:var(--ink);
  border-radius:var(--radius-btn);font-weight:700;font-size:15px;
}
.btn-accent:hover{background:#d6f784;color:var(--ink);}
.text-link{
  display:inline-block;color:var(--brand);font-size:14px;font-weight:600;
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  transition:background-size .22s ease,color .2s ease;padding-bottom:2px;
}
.text-link:hover{background-size:100% 1px;color:var(--brand-2);}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:none;}
.form-control{
  height:44px;border:1px solid var(--line);border-radius:2px;padding:0 14px;
  font-size:14px;color:var(--ink);background:#fff;box-shadow:none;
}
.form-control:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);
}
.breadcrumb{background:transparent;padding:0;margin:0;}
.accordion{--bs-accordion-border-color:var(--line);}
.carousel-indicators,.carousel-control-prev,.carousel-control-next{display:none;}

/* ---------- Layout ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sp) 0;scroll-margin-top:112px;}
.section-tight{padding:56px 0;scroll-margin-top:112px;}
.sec-num{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:600;
  color:var(--brand);letter-spacing:.08em;
}
.sec-title{
  font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.3;margin-top:6px;
}
.sec-note{font-size:13px;color:var(--muted);margin-top:8px;}
.sec-sticky{position:sticky;top:128px;}
.rule{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(20,23,26,.03);
}
.nav-top{height:56px;}
.nav-top-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{width:10px;height:10px;background:var(--accent);display:block;flex:0 0 10px;border-radius:2px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:2px;background:transparent;color:var(--ink);cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--hover-bg);border-color:var(--line);}
.nav-search{
  display:flex;align-items:center;gap:8px;overflow:hidden;width:0;opacity:0;
  transition:width .26s ease,opacity .2s ease;
}
.nav-search.is-open{width:240px;opacity:1;}
.nav-search input{
  width:100%;height:38px;border:1px solid var(--line);border-radius:2px;
  padding:0 12px;font-size:14px;background:#fff;color:var(--ink);
}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);outline:none;}
.nav-burger{display:none;}
.nav-channel{border-top:1px solid var(--line);}
.channel-inner{height:48px;display:flex;align-items:center;gap:14px;}
.channel-label{
  font-size:12px;color:var(--muted);letter-spacing:.08em;white-space:nowrap;
  padding-right:12px;border-right:1px solid var(--line);
}
.channel-tabs{
  display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;scrollbar-width:none;flex:1;white-space:nowrap;padding:2px 0;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--ink-2);
  font-size:13px;font-weight:500;scroll-snap-align:start;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.pill:hover{border-color:var(--ink);color:var(--ink);background:var(--hover-bg);}
.pill.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.mobile-menu{
  border-top:1px solid var(--line);background:var(--paper);padding:8px 0 14px;
}
.mobile-menu a{
  display:block;padding:10px 0;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line);
}
.mobile-menu a:last-child{border-bottom:0;}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:72px 0 88px;overflow:hidden;
  background-color:var(--paper);
  background-image:radial-gradient(rgba(20,23,26,.04) .7px,transparent .7px);
  background-size:16px 16px;
}
.hero h1{
  font-size:clamp(32px,5vw,64px);line-height:1.05;font-weight:900;letter-spacing:-.02em;
  color:var(--ink);margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:32ch;margin-bottom:28px;line-height:1.6;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;border-top:1px solid var(--line);padding-top:18px;}
.hero-meta div{display:flex;flex-direction:column;gap:2px;}
.hero-meta dt,.hero-meta span.k{font-size:12px;color:var(--muted);letter-spacing:.04em;}
.hero-meta span.v{font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;}
.hero-figure{position:relative;}
.hero-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);
  border:1px solid var(--line);
}
.hero-note{
  position:absolute;left:-10px;bottom:-26px;width:240px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;
}
.hero-note strong{display:block;font-size:13px;font-weight:700;color:var(--ink);}
.hero-note span{display:block;font-size:12px;color:var(--muted);margin-top:3px;}

/* ---------- Value ---------- */
.value-list{border-top:1px solid var(--line);}
.value-item{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:26px 12px;border-bottom:1px solid var(--line);
  transition:background-color .22s ease;
}
.value-item:hover{background:var(--hover-bg);}
.vi-num{
  font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--muted);
  padding-top:4px;letter-spacing:.06em;
}
.vi-kicker{display:block;font-size:13px;color:var(--muted);letter-spacing:.06em;margin-bottom:4px;}
.vi-title{
  font-size:18px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:6px;
  display:inline-block;background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  transition:background-size .24s ease;
}
.value-item:hover .vi-title{background-size:100% 1px;}
.vi-desc{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:56ch;}

/* ---------- Demo ---------- */
.demo-frame{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.demo-img{width:100%;aspect-ratio:16/10;object-fit:cover;border:0;}
.demo-controls{
  display:flex;align-items:center;gap:18px;margin-top:20px;flex-wrap:wrap;
}
.demo-btn{
  background:transparent;border:0;padding:0;font-size:14px;font-weight:600;color:var(--ink);
  cursor:pointer;transition:color .2s ease;
}
.demo-btn:hover{color:var(--brand-2);}
.demo-track{flex:1;height:1px;background:var(--line);position:relative;min-width:80px;}
.demo-progress{
  position:absolute;left:0;top:0;height:1px;width:33.333%;background:var(--brand);
  transition:width .3s ease;
}
.demo-counter{
  font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.demo-cap{font-size:13px;color:var(--muted);margin-top:12px;}

/* ---------- Proof ---------- */
.proof{
  background:var(--dark);color:#D8DCD9;padding:var(--sp) 0;scroll-margin-top:112px;
}
.proof .sec-num{color:var(--accent);}
.proof .sec-title{color:#fff;}
.stat{padding:0 0 28px;}
.stat strong{
  display:block;font-family:var(--font-num);font-weight:900;font-size:clamp(44px,6vw,68px);
  line-height:1;color:#fff;letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.stat i{display:block;width:28px;height:2px;background:var(--accent);margin:16px 0 12px;}
.stat span{font-size:13px;color:#9AA3A0;line-height:1.7;display:block;}
.quote{
  border-left:1px solid rgba(255,255,255,.12);padding-left:24px;margin-bottom:28px;
}
.quote .mark{
  font-size:32px;line-height:1;color:var(--accent);font-family:Georgia,serif;display:block;margin-bottom:6px;
}
.quote p{font-size:16px;color:#E7EAE8;line-height:1.7;margin-bottom:10px;}
.quote cite{font-style:normal;font-size:13px;color:#8E9793;}

/* ---------- Plans ---------- */
.plan-row{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  padding:22px;display:grid;grid-template-columns:150px 1fr 1fr auto;gap:18px;align-items:center;
  margin-bottom:14px;transition:transform .22s ease,border-color .22s ease;
}
.plan-row:hover{transform:translateY(-2px);border-color:var(--brand);}
.plan-name{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.plan-name small{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:4px;letter-spacing:0;}
.plan-for{font-size:14px;color:var(--ink-2);}
.plan-inc{font-size:14px;color:var(--muted);line-height:1.7;}
.plan-side{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;position:sticky;top:128px;
}
.plan-side h3{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:14px;}
.plan-side dl{margin:0;}
.plan-side dt{font-size:13px;color:var(--muted);margin-top:14px;}
.plan-side dd{font-size:13px;color:var(--ink-2);margin:4px 0 0;line-height:1.7;}
.plan-side dt:first-child{margin-top:0;}

/* ---------- News ---------- */
.news-list{border-top:1px solid var(--line);}
.news-row{
  display:grid;grid-template-columns:110px 1fr 24px;gap:20px;align-items:start;
  padding:22px 8px;border-bottom:1px solid var(--line);
  transition:background-color .22s ease;color:inherit;
}
.news-row:hover{background:var(--hover-bg);color:inherit;}
.news-date{
  font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--muted);
  font-variant-numeric:tabular-nums;padding-top:3px;
}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:4px;
  border:1px solid var(--line);font-size:12px;color:var(--ink-2);background:transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.news-row:hover .tag{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.news-title{
  display:block;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-row:hover .news-title{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.news-summary{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14px;color:var(--muted);line-height:1.7;
}
.news-arrow{
  font-size:16px;color:var(--muted);text-align:right;padding-top:2px;transition:transform .2s ease,color .2s ease;
}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--brand);}
.news-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;font-size:14px;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  text-align:center;
}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-button{
  position:relative;background:transparent;color:var(--ink);font-size:17px;font-weight:600;
  padding:20px 44px 20px 0;box-shadow:none;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:2px;}
.faq-acc .accordion-button::after{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;margin:0;
  transform:translateY(-50%);background-image:none;
  background:
    linear-gradient(var(--ink),var(--ink)) center/14px 1px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/1px 14px no-repeat;
  transition:transform .24s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  background:
    linear-gradient(var(--brand),var(--brand)) center/14px 1px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/1px 14px no-repeat;
}
.faq-acc .accordion-body{
  padding:0 44px 22px 0;font-size:14px;color:var(--ink-2);line-height:1.8;
}
.faq-acc .accordion-collapse{transition:height .24s ease;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--brand);color:#F7F6F2;border-radius:var(--radius);
  padding:64px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(20px,2.4vw,24px);font-weight:800;color:#fff;line-height:1.5;letter-spacing:-.01em;
  max-width:24ch;margin-bottom:8px;
}
.cta-band p{font-size:14px;color:rgba(247,246,242,.78);max-width:44ch;}
.cta-band .band-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-band .text-link{color:var(--accent);background-image:linear-gradient(var(--accent),var(--accent));}
.cta-band .text-link:hover{color:#fff;background-image:linear-gradient(#fff,#fff);}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#B9C0BD;padding:72px 0 0;margin-top:var(--sp);}
.site-footer h3{font-size:13px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-name{color:#fff;font-size:15px;}
.footer-brand .brand-sub{color:#7D8783;}
.site-footer p{font-size:13px;line-height:1.8;color:#9AA3A0;max-width:30ch;}
.footer-list li{margin-bottom:10px;}
.footer-list a{
  font-size:13px;color:#B9C0BD;display:inline-block;transition:color .2s ease,padding-left .2s ease;
  border-left:0 solid var(--accent);
}
.footer-list a:hover{color:var(--accent);padding-left:10px;border-left-width:2px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#7D8783;
}
.footer-bottom a{color:#7D8783;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- Floating / dot nav ---------- */
.dot-nav{
  position:fixed;right:26px;top:50%;transform:translateY(-50%);z-index:1020;
  display:flex;flex-direction:column;gap:16px;align-items:flex-end;
}
.dot-nav a{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;}
.dot-nav .dot{
  width:8px;height:8px;border-radius:999px;background:#C9C5BC;transition:all .24s ease;
}
.dot-nav a:hover .dot{background:var(--brand-2);}
.dot-nav a.is-active .dot{height:24px;width:3px;border-radius:2px;background:var(--brand);}
.dot-nav a.is-active{color:var(--brand);font-weight:600;}
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1021;opacity:0;pointer-events:none;
  transition:opacity .26s ease;display:flex;flex-direction:column;align-items:flex-end;gap:12px;
}
.float-cta.is-show{opacity:1;pointer-events:auto;}
.float-cta .btn-main{
  height:44px;padding:0 20px;border-radius:999px;width:auto;font-size:14px;
  box-shadow:var(--shadow-nav);
}
.to-top{
  width:40px;height:40px;border-radius:2px;border:1px solid var(--line);background:#fff;
  color:var(--ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-nav);transition:background-color .2s ease,color .2s ease;
}
.to-top:hover{background:var(--ink);color:var(--paper);}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1022;height:56px;
  background:var(--paper);border-top:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  box-shadow:0 -6px 20px rgba(20,23,26,.06);
}
.mobile-bar .btn-main{height:40px;padding:0 18px;font-size:14px;}
.mobile-bar .text-link{font-size:13px;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .dot-nav{display:none;}
}
@media (max-width:991.98px){
  :root{--sp:72px;}
  .hero{padding:48px 0 64px;}
  .hero-figure{margin-top:40px;}
  .hero-img{aspect-ratio:16/10;}
  .hero-note{position:static;width:100%;margin-top:14px;}
  .sec-sticky,.plan-side{position:static;}
  .plan-row{grid-template-columns:1fr 1fr;gap:12px;}
  .plan-row .plan-link{grid-column:1 / -1;}
  .news-row{grid-template-columns:96px 1fr 20px;gap:14px;}
  .cta-band{padding:40px;}
}
@media (max-width:767.98px){
  :root{--sp:56px;}
  .wrap{padding:0 20px;}
  .nav-search.is-open{position:absolute;left:20px;right:20px;top:58px;width:auto;background:var(--paper);padding:8px;z-index:1040;border:1px solid var(--line);border-radius:2px;}
  .nav-burger{
    display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
    border:1px solid var(--line);border-radius:2px;background:transparent;color:var(--ink);cursor:pointer;
  }
  .brand-name{font-size:14px;}
  .channel-label{display:none;}
  .hero h1{font-size:clamp(30px,8vw,44px);}
  .hero-sub{font-size:16px;}
  .hero-meta{gap:18px;}
  .value-item{grid-template-columns:40px 1fr;gap:12px;padding:22px 4px;}
  .plan-row{grid-template-columns:1fr;padding:18px;}
  .news-row{grid-template-columns:1fr;gap:8px;}
  .news-date{order:-1;}
  .news-arrow{display:none;}
  .cta-band{padding:32px;border-radius:var(--radius);}
  .site-footer{padding-top:56px;padding-bottom:72px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-cta{display:none;}
  .mobile-bar{display:flex;}
  .faq-acc .accordion-button{font-size:16px;padding:18px 40px 18px 0;}
  .quote{padding-left:16px;margin-bottom:24px;}
}
@media (max-width:575.98px){
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%;}
  .nav-actions .btn-main.is-sm{display:none;}
  .stat strong{font-size:44px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --ink:#14171A;
  --ink-2:#3A4046;
  --muted:#6E757C;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DFD8;
  --brand:#14554A;
  --brand-2:#2E8B78;
  --accent:#C8F169;
  --dark:#0F1513;
  --warm:#B4551F;
  --hover-bg:#FBFAF7;
  --r-card:6px;
  --r-btn:2px;
  --r-pill:999px;
  --shadow-nav:0 8px 24px rgba(20,23,26,.08);
  --wrap-max:1200px;
  --gap:24px;

  --bs-primary:#14554A;
  --bs-body-color:#3A4046;
  --bs-body-bg:#F7F6F2;
  --bs-border-color:#E2DFD8;
  --bs-border-radius:6px;
  --bs-border-radius-sm:2px;
  --bs-font-sans-serif:"Noto Sans SC","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-link-color:#14554A;
  --bs-link-hover-color:#2E8B78;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:"Noto Sans SC","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.18;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}
::selection{background:var(--accent);color:var(--ink);}

.wrap{width:100%;max-width:var(--wrap-max);margin:0 auto;padding-left:32px;padding-right:32px;}
.section{padding-top:96px;}
.section-tight{padding-top:72px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,246,242,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-nav);}
.nav-top{display:flex;align-items:center;gap:18px;height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;}
.brand:hover{color:var(--ink);}
.brand-mark{width:10px;height:10px;background:var(--accent);display:block;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:16px;font-weight:900;letter-spacing:-.02em;color:var(--ink);}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.04em;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-toggle{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;
  color:var(--ink-2);font-size:13px;cursor:pointer;transition:.2s;
}
.search-toggle:hover{border-color:var(--ink);color:var(--ink);}
.search-toggle svg{width:15px;height:15px;}
.search-panel{display:none;align-items:center;gap:8px;}
.search-panel.is-open{display:flex;}
.search-panel input{
  height:36px;width:240px;padding:0 12px;font-size:14px;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);
}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
.btn-nav{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;
  background:var(--brand);color:#F7F6F2;font-size:13px;font-weight:700;
  border:1px solid var(--brand);border-radius:var(--r-btn);transition:.2s;white-space:nowrap;
}
.btn-nav:hover{background:var(--brand-2);border-color:var(--brand-2);color:#F7F6F2;}
.btn-nav:active{transform:translateY(1px);}

.channel-row{display:flex;align-items:center;gap:12px;height:48px;}
.channel-label{
  font-size:12px;color:var(--muted);letter-spacing:.12em;white-space:nowrap;
  border-right:1px solid var(--line);padding-right:12px;
}
.channel-tabs{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;flex-wrap:nowrap;
  scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:4px 2px;
  width:100%;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  font-size:13px;line-height:1.6;padding:5px 15px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  color:var(--ink-2);background:transparent;white-space:nowrap;transition:.22s;
}
.pill:hover{border-color:var(--ink);color:var(--ink);background:var(--surface);}
.pill.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.pill.is-active:hover{color:var(--paper);}

/* ============ 页头 ============ */
.page-head{padding-top:44px;}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--brand);}
.breadcrumb-line .sep{color:#C9C4B9;}
.breadcrumb-line .current{color:#9A968C;}
.head-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:48px;align-items:end;}
.head-tag{
  display:inline-block;font-size:12px;letter-spacing:.1em;color:var(--brand);
  border:1px solid var(--brand);border-radius:4px;padding:3px 10px;margin-bottom:18px;
}
h1.page-title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.1;font-weight:900;letter-spacing:-.02em;margin-bottom:18px;
}
.page-lead{font-size:16px;line-height:1.9;color:var(--ink-2);max-width:620px;margin-bottom:0;}
.head-figure{margin:0;}
.head-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--r-card);background:#EDEAE3;
}
.head-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;}

/* ============ 步骤流 ============ */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.block-head h2{font-size:clamp(22px,2.4vw,30px);}
.block-head p{margin:0;font-size:14px;color:var(--muted);max-width:460px;}
.steps{list-style:none;position:relative;max-width:860px;}
.steps::before{
  content:"";position:absolute;left:59px;top:18px;bottom:40px;width:1px;background:var(--line);
}
.step{position:relative;padding-left:84px;padding-bottom:36px;}
.step:last-child{padding-bottom:0;}
.step-num{
  position:absolute;left:0;top:-8px;width:52px;
  font-family:"Inter",sans-serif;font-weight:300;font-size:44px;line-height:1;
  color:var(--brand-2);letter-spacing:-.04em;
}
.step-body h3{font-size:18px;font-weight:800;margin-bottom:8px;}
.step-body p{margin:0;font-size:14px;line-height:1.85;color:var(--ink-2);max-width:620px;}
.step:hover .step-body h3{color:var(--brand);}
.step-body h3{transition:color .2s;}

/* ============ 提示条 ============ */
.notice{
  padding:16px 20px;font-size:14px;line-height:1.8;border-radius:var(--r-card);
  border-left:3px solid var(--brand);background:#F2F6F4;color:var(--ink-2);
}
.notice strong{color:var(--ink);font-weight:700;}
.notice-wrap{max-width:860px;margin-top:40px;}

/* ============ 准备清单 ============ */
.checklist{max-width:860px;border-top:1px solid var(--line);}
.checklist li{
  list-style:none;display:grid;grid-template-columns:28px 1fr;gap:16px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.check-box{
  width:16px;height:16px;border:1px solid var(--brand);border-radius:2px;
  margin-top:5px;position:relative;flex:0 0 auto;
}
.check-box::after{
  content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;
  border:1.5px solid var(--brand);border-top:0;border-left:0;transform:rotate(40deg);
}
.checklist h3{font-size:17px;font-weight:800;margin-bottom:6px;}
.checklist p{margin:0;font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ 相关链接 ============ */
.link-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;
  max-width:860px;border-top:1px solid var(--line);
}
.link-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink);transition:.2s;
}
.link-item span.arrow{color:var(--muted);transition:transform .2s,color .2s;font-size:14px;}
.link-item:hover{color:var(--brand);background:var(--hover-bg);}
.link-item:hover span.arrow{transform:translateX(4px);color:var(--brand);}

/* ============ CTA 带 ============ */
.cta-band{padding:96px 0 0;}
.cta-inner{
  background:var(--brand);border-radius:var(--r-card);
  padding:64px;display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-inner h2{color:#F7F6F2;font-size:clamp(20px,2.2vw,24px);margin-bottom:10px;}
.cta-inner p{color:rgba(247,246,242,.76);font-size:14px;margin:0;}
.cta-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.btn-accent{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;
  background:var(--accent);color:var(--ink);font-size:15px;font-weight:800;
  border:1px solid var(--accent);border-radius:var(--r-btn);transition:.22s;white-space:nowrap;
}
.btn-accent:hover{filter:brightness(1.08);color:var(--ink);}
.btn-accent:active{transform:translateY(1px);}
.text-link{
  display:inline-block;font-size:14px;color:var(--brand);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  padding-bottom:2px;transition:background-size .22s ease,color .22s;
}
.text-link:hover{background-size:100% 1px;color:var(--brand-2);}
.text-link.on-dark{color:rgba(247,246,242,.86);background-image:linear-gradient(var(--accent),var(--accent));}
.text-link.on-dark:hover{color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B9C0C2;margin-top:96px;padding:72px 0 0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-name{color:#FFFFFF;font-size:16px;font-weight:900;letter-spacing:-.02em;display:block;}
.footer-brand .brand-sub{color:#7C8587;font-size:11px;letter-spacing:.04em;display:block;}
.site-footer p{font-size:14px;line-height:1.85;color:#99A1A3;max-width:340px;}
.site-footer h3{
  font-size:12px;letter-spacing:.14em;color:#7C8587;font-weight:700;
  margin-bottom:18px;text-transform:uppercase;
}
.footer-list{list-style:none;}
.footer-list li{margin-bottom:12px;}
.footer-list a{
  position:relative;display:inline-block;font-size:14px;color:#B9C0C2;
  padding-left:0;transition:color .2s,padding-left .2s;
}
.footer-list a::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:2px;background:var(--accent);
  transform:translateY(-50%);opacity:0;transition:opacity .2s;
}
.footer-list a:hover{color:var(--accent);padding-left:12px;}
.footer-list a:hover::before{opacity:1;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#78807F;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;justify-content:center;
  width:132px;height:44px;border-radius:var(--r-pill);
  background:var(--brand);color:#F7F6F2;font-size:14px;font-weight:700;
  box-shadow:var(--shadow-nav);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,background .2s;
}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta:hover{background:var(--brand-2);color:#F7F6F2;}
.to-top{
  position:fixed;right:24px;bottom:80px;z-index:900;
  width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  color:var(--ink);box-shadow:var(--shadow-nav);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,border-color .2s;
}
.to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{border-color:var(--brand);color:var(--brand);}
.mobile-bar{display:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .head-grid{gap:36px;}
}
@media (max-width:991px){
  .head-grid{grid-template-columns:1fr;gap:32px;}
  .head-figure img{aspect-ratio:16/9;}
  .section{padding-top:72px;}
  .cta-inner{padding:48px;flex-direction:column;align-items:flex-start;gap:28px;}
  .block-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .link-grid{grid-template-columns:1fr;gap:0;}
}
@media (max-width:767px){
  .wrap{padding-left:20px;padding-right:20px;}
  .nav-top{gap:12px;height:56px;}
  .brand-name{font-size:14px;}
  .brand-sub{display:none;}
  .search-toggle span{display:none;}
  .search-panel input{width:150px;}
  .btn-nav{padding:0 12px;font-size:12px;}
  .channel-label{display:none;}
  .section{padding-top:56px;}
  .steps::before{left:44px;}
  .step{padding-left:62px;padding-bottom:30px;}
  .step-num{font-size:32px;width:38px;top:-4px;}
  .cta-inner{padding:36px 24px;}
  .float-cta,.to-top{display:none;}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:950;
    height:56px;padding:0 16px;align-items:center;gap:14px;
    background:rgba(247,246,242,.97);border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(20,23,26,.08);
  }
  .mobile-bar .btn-nav{height:38px;flex:1;justify-content:center;}
  body{padding-bottom:72px;}
  .site-footer{margin-top:56px;padding-top:56px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  h1.page-title{font-size:26px;}
  .page-lead{font-size:15px;}
  .checklist li{grid-template-columns:24px 1fr;gap:12px;}
  .steps::before{left:38px;}
  .step{padding-left:52px;}
  .step-num{font-size:26px;width:32px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: article */
:root{
  --ink:#14171A;
  --ink-2:#3A4046;
  --muted:#6E757C;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DFD8;
  --brand:#14554A;
  --brand-2:#2E8B78;
  --accent:#C8F169;
  --dark:#0F1513;
  --warm:#B4551F;
  --hover-bg:#FBFAF7;
  --radius:6px;
  --radius-sm:2px;
  --shadow:0 8px 24px rgba(20,23,26,.08);
  --nav-h:104px;
  --bs-primary:#14554A;
  --bs-body-color:#3A4046;
  --bs-body-bg:#F7F6F2;
  --bs-border-radius:6px;
  --bs-border-color:#E2DFD8;
  --bs-link-color:#14554A;
  --bs-link-hover-color:#2E8B78;
  --bs-font-sans-serif:"Noto Sans SC","Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EDEAE3}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-2)}
button{font-family:inherit}
h1,h2,h3,h4,h5,h6{color:var(--ink);margin:0 0 12px;letter-spacing:-.02em;line-height:1.28}
p{margin:0 0 16px}
ul,ol{margin:0 0 16px;padding-left:22px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}

/* ============ 双层导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow)}
.nav-top{border-bottom:1px solid transparent}
.nav-top-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{width:10px;height:10px;background:var(--accent);display:inline-block;border-radius:1px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:900;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;margin-top:2px}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-search{display:flex;align-items:center;border:1px solid transparent;border-radius:999px;transition:border-color .2s ease,background .2s ease}
.nav-search.is-open{border-color:var(--line);background:var(--surface)}
.nav-search input{
  width:0;opacity:0;padding:0;border:0;background:transparent;
  font-size:14px;color:var(--ink);height:36px;transition:width .22s ease,opacity .18s ease,padding .22s ease;
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search.is-open input{width:200px;opacity:1;padding:0 14px 0 2px}
.search-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:0;background:transparent;border-radius:999px;color:var(--ink-2);cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.search-btn:hover{background:var(--hover-bg);color:var(--brand)}
.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;letter-spacing:.01em;border:1px solid transparent;
  cursor:pointer;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .12s ease;
}
.btn:active{transform:translateY(1px)}
.btn .arrow{transition:transform .22s ease}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-2);color:#fff}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--paper)}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:#d5f883;color:var(--ink)}
.btn-sm{height:38px;padding:0 18px;font-size:13px;border-radius:var(--radius-sm)}
.nav-burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:transparent;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}
.nav-burger:hover{border-color:var(--ink)}

.nav-bottom{height:48px;display:flex;align-items:center}
.nav-bottom .wrap{display:flex;align-items:center;gap:14px;width:100%}
.channel-label{
  font-size:12px;color:var(--muted);letter-spacing:.14em;flex:0 0 auto;
  border-right:1px solid var(--line);padding-right:14px;line-height:1;
}
.channel-tabs{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;
  overflow-x:auto;overflow-y:hidden;white-space:nowrap;
  scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;padding:2px 0;
}
.channel-tabs::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  font-size:13px;line-height:1;padding:8px 15px;border-radius:999px;
  border:1px solid var(--line);color:var(--ink-2);background:transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.pill:hover{background:var(--surface);border-color:var(--ink);color:var(--ink)}
.pill.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.pill.is-active:hover{color:var(--paper)}

/* ============ 文章头部 ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding-top:32px;
}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C9C5BC}
.crumb .current{color:var(--muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-head{padding:24px 0 0}
.pill-tag{
  display:inline-block;font-size:12px;line-height:1;padding:6px 11px;
  border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink-2);
}
.pill-tag:hover{border-color:var(--ink);color:var(--ink)}
.post-head h1{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:900;
  line-height:1.22;
  margin:18px 0 18px;
  max-width:880px;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);
  padding-bottom:22px;border-bottom:1px solid var(--line);
}
.post-meta .num{font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink-2)}
.post-meta .dot{color:#C9C5BC}

/* ============ 双栏正文 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:56px;
  padding-top:40px;
  align-items:start;
}
.article-main{min-width:0}
.article-body{max-width:720px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.article-body > p:first-child{font-size:18px;color:var(--ink-2)}
.article-body h2{
  font-size:24px;font-weight:800;color:var(--ink);
  margin:36px 0 16px;position:relative;scroll-margin-top:calc(var(--nav-h) + 24px);
}
.article-body h2::before{
  content:"";display:block;width:32px;height:3px;border-radius:2px;
  background:var(--accent);margin-bottom:12px;
}
.article-body h3{
  font-size:19px;font-weight:700;color:var(--ink);margin:28px 0 12px;
  scroll-margin-top:calc(var(--nav-h) + 24px);
}
.article-body h4{font-size:16px;font-weight:700;color:var(--ink);margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--brand)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-2)}
.article-body blockquote{
  margin:24px 0;padding:20px;border-left:3px solid var(--brand);
  background:var(--surface);border-radius:0 var(--radius) var(--radius) 0;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);border:1px solid var(--line);margin:10px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:22px 0}
.article-body th{
  text-align:left;font-weight:700;color:var(--ink);background:var(--surface);
  padding:11px 14px;border-bottom:1px solid var(--line);
}
.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body tr:nth-child(even) td{background:var(--hover-bg)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.empty-state{
  padding:72px 24px;text-align:center;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
}
.empty-state h2{font-size:20px;font-weight:800;margin-bottom:10px}
.empty-state h2::before{display:none}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px}

/* ============ 侧栏 ============ */
.article-side{min-width:0}
.side-inner{
  position:sticky;top:calc(var(--nav-h) + 24px);
  display:flex;flex-direction:column;gap:18px;
}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;
}
.side-card h2,.side-card h3{
  font-size:14px;font-weight:800;letter-spacing:.02em;color:var(--ink);
  margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.toc-list{list-style:none;margin:0;padding:0;max-height:52vh;overflow-y:auto}
.toc-list li{margin:0}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);padding:7px 0 7px 12px;
  border-left:2px solid transparent;line-height:1.5;
  transition:color .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--brand)}
.toc-list a.is-current{color:var(--brand);font-weight:600;border-left-color:var(--brand)}
.toc-empty{font-size:13px;color:var(--muted);margin:0}
.side-links{list-style:none;margin:0;padding:0}
.side-links li{border-bottom:1px dashed var(--line)}
.side-links li:last-child{border-bottom:0}
.side-links a{display:block;font-size:14px;color:var(--ink-2);padding:9px 0;line-height:1.5}
.side-links a:hover{color:var(--brand)}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;margin:0 0 12px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0% 1px;background-position:0 100%;background-repeat:no-repeat;
  padding-bottom:2px;transition:background-size .22s ease,color .22s ease;
}
.text-link:hover{background-size:100% 1px;color:var(--brand-2)}
.toc-mobile{
  display:none;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:24px;
}
.toc-mobile summary{
  cursor:pointer;font-size:14px;font-weight:700;color:var(--ink);
  padding:14px 18px;list-style:none;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"＋";float:right;color:var(--muted)}
.toc-mobile[open] summary::after{content:"－"}
.toc-mobile .toc-list{padding:0 18px 12px;max-height:none}

/* ============ 文章底部 ============ */
.post-foot{margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.post-foot-nav{display:flex;flex-wrap:wrap;gap:12px 32px;margin-bottom:24px}
.post-foot-nav a{font-size:14px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px}
.post-foot-nav a:hover{color:var(--brand)}
.notice{
  border-left:3px solid var(--brand);background:#F2F6F4;
  padding:16px 20px;border-radius:0 var(--radius) var(--radius) 0;
  font-size:14px;color:var(--ink-2);line-height:1.75;
}
.notice p{margin:0}
.notice p + p{margin-top:8px}

/* ============ 相关阅读 ============ */
.related{margin-top:64px;padding-top:40px;border-top:1px solid var(--line)}
.related h2{font-size:22px;font-weight:800;margin-bottom:6px}
.related .sub{font-size:14px;color:var(--muted);margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--brand)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border:0;border-bottom:1px solid var(--line);border-radius:0}
.rel-card .rel-body{padding:16px 18px}
.rel-card h3{font-size:16px;font-weight:700;color:var(--ink);margin:0 0 8px;line-height:1.45}
.rel-card:hover h3{color:var(--brand)}
.rel-card .rel-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ============ CTA 带 ============ */
.cta-band{
  margin-top:64px;padding:48px;border-radius:var(--radius);
  background:var(--brand);display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:24px;font-weight:800;margin:0 0 8px}
.cta-band p{color:rgba(255,255,255,.78);font-size:14px;margin:0;line-height:1.7}
.cta-band .cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band .cta-link{color:#fff;font-size:14px;font-weight:600}
.cta-band .cta-link:hover{color:var(--accent)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.68);margin-top:96px;padding:64px 0 0;font-size:14px;line-height:1.75}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.5)}
.site-footer h3{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.site-footer p{font-size:14px;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:320px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:4px}
.footer-list{list-style:none;margin:0;padding:0}
.footer-list li{margin-bottom:10px}
.footer-list a{color:rgba(255,255,255,.7);font-size:14px;padding-left:0;transition:color .2s ease,padding-left .2s ease}
.footer-list a::before{content:"";display:inline-block;width:0;height:2px;background:var(--accent);vertical-align:middle;transition:width .2s ease;margin-right:0}
.footer-list a:hover{color:var(--accent)}
.footer-list a:hover::before{width:10px;margin-right:6px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:12px 24px;
  flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.5);
}

/* ============ 浮动元素 ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
}
.fc-btn{
  width:132px;height:44px;border-radius:999px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;
  box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .28s ease,transform .28s ease,background .2s ease;
}
.fc-btn:hover{background:var(--brand-2);color:#fff}
.float-cta.is-visible .fc-btn{opacity:1;pointer-events:auto;transform:none}
.to-top{
  width:40px;height:40px;border-radius:var(--radius-sm);background:var(--surface);
  border:1px solid var(--line);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .28s ease,transform .28s ease,border-color .2s ease;
}
.to-top:hover{border-color:var(--brand);color:var(--brand)}
.float-cta.is-visible .to-top{opacity:1;pointer-events:auto;transform:none}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1050;height:56px;
  background:var(--surface);border-top:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
}
.mobile-bar .btn{height:40px;font-size:14px;padding:0 18px}
.mobile-bar .text-link{font-size:13px}

/* ============ 断点 ============ */
@media (max-width:1199px){
  .article-layout{gap:40px}
}
@media (max-width:991px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:28px}
  .article-side{display:none}
  .toc-mobile{display:block}
  .article-body{max-width:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:40px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .nav-search.is-open input{width:130px}
  .nav-cta{display:none}
  .nav-burger{display:inline-flex}
  html.nav-collapsed body{padding-top:56px}
  html.nav-collapsed .nav-bottom{display:none}
  .brand-name{font-size:14px}
  .brand-sub{font-size:10px}
  .channel-label{display:none}
  .crumb{padding-top:20px}
  .post-head h1{font-size:clamp(24px,6vw,30px)}
  .article-body{font-size:16px}
  .article-body > p:first-child{font-size:17px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  body{padding-bottom:72px}
  .site-footer{padding-top:48px;margin-top:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .post-foot-nav{flex-direction:column;gap:10px}
}
@media (max-width:575px){
  .nav-search{display:none}
  .brand-name{font-size:13px;white-space:normal}
  .post-meta{font-size:12px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --ink:#14171A;
  --ink-2:#3A4046;
  --muted:#6E757C;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DFD8;
  --brand:#14554A;
  --brand-2:#2E8B78;
  --accent:#C8F169;
  --dark:#0F1513;
  --warm:#B4551F;
  --hover-bg:#FBFAF7;
  --r-card:6px;
  --r-btn:2px;
  --shadow-nav:0 8px 24px rgba(20,23,26,.08);
  --bs-primary:#14554A;
  --bs-body-color:#3A4046;
  --bs-body-bg:#F7F6F2;
  --bs-border-radius:6px;
  --bs-border-color:#E2DFD8;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --bs-link-color:#14554A;
  --bs-link-hover-color:#2E8B78;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.02em;margin:0;}
p{margin:0 0 16px;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;}
.mono{font-family:'Inter','Noto Sans SC',system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,246,242,.94);backdrop-filter:saturate(120%) blur(6px);border-bottom:1px solid var(--line);box-shadow:var(--shadow-nav);}
.nav-top{height:56px;border-bottom:1px solid transparent;}
.nav-top-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;}
.brand:hover{color:var(--ink);}
.brand-mark{width:10px;height:10px;background:var(--accent);display:inline-block;flex:0 0 10px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:900;letter-spacing:-.02em;color:var(--ink);}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.04em;}
.nav-tools{display:flex;align-items:center;gap:10px;}
.icon-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-btn);color:var(--ink);cursor:pointer;transition:.2s ease;}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.search-form{display:none;align-items:center;}
.search-form.is-open{display:flex;}
.search-form input{height:38px;width:240px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);font-size:14px;color:var(--ink);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;}
.btn .arrow{transition:transform .2s ease;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--brand);color:#F7F6F2;border-color:var(--brand);}
.btn-primary:hover{background:var(--brand-2);border-color:var(--brand-2);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#F7F6F2;}
.btn-accent{background:var(--accent);color:var(--ink);border-color:var(--accent);}
.btn-accent:hover{background:#d5f784;border-color:#d5f784;color:var(--ink);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.hamburger{display:none;}
.nav-bottom{border-top:1px solid var(--line);}
.nav-bottom-inner{display:flex;align-items:center;gap:14px;height:48px;}
.channel-label{font-size:12px;color:var(--muted);letter-spacing:.08em;white-space:nowrap;}
.channel-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;white-space:nowrap;padding:6px 0;flex:1;-ms-overflow-style:none;scrollbar-width:none;}
.channel-tabs::-webkit-scrollbar{display:none;}
.pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:500;color:var(--ink-2);background:transparent;scroll-snap-align:start;transition:.2s ease;white-space:nowrap;}
.pill:hover{border-color:var(--ink);color:var(--ink);}
.pill.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{padding:10px 0;}
.mobile-drawer li a{display:block;padding:10px 32px;font-size:15px;color:var(--ink-2);}
.mobile-drawer li a:hover{color:var(--brand);background:var(--hover-bg);}

/* ---------- page head ---------- */
.crumbs{font-size:13px;color:var(--muted);padding:28px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C9C4BA;}
.crumbs .current{color:#9AA0A6;}
.page-head{padding-bottom:72px;}
.page-head-grid{display:grid;grid-template-columns:1fr 360px;gap:48px;align-items:end;margin-top:24px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--brand);font-weight:700;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:inline-block;}
.page-h1{font-size:clamp(26px,3.4vw,40px);line-height:1.22;font-weight:900;max-width:16em;}
.page-lead{margin-top:18px;font-size:16px;color:var(--ink-2);max-width:640px;line-height:1.9;}
.head-figure{margin:0;}
.head-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);background:#EDEAE3;}
.head-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;}

/* ---------- sections ---------- */
.section{padding:0 0 96px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-size:clamp(20px,2.4vw,28px);font-weight:900;}
.section-desc{font-size:14px;color:var(--muted);max-width:520px;margin-top:8px;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border:1px solid var(--line);border-radius:4px;font-size:12px;color:var(--ink-2);background:var(--surface);}
.tag-solid{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.tag-accent{background:var(--accent);border-color:var(--accent);color:var(--ink);font-weight:600;}

/* stat strip */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;background:var(--dark);border-radius:var(--r-card);padding:32px;margin-bottom:40px;}
.stat-item{color:#F7F6F2;}
.stat-num{font-family:'Inter','Noto Sans SC',system-ui,sans-serif;font-weight:900;font-size:clamp(30px,4vw,44px);line-height:1.05;letter-spacing:-.03em;color:#fff;}
.stat-num small{font-size:14px;font-weight:600;color:var(--accent);margin-left:6px;letter-spacing:0;}
.stat-line{width:28px;height:3px;background:var(--accent);margin:16px 0 10px;}
.stat-label{font-size:13px;color:#A9B2AE;}

/* version table */
.table-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.version-table{width:100%;border-collapse:collapse;}
.version-table caption{caption-side:top;text-align:left;padding:20px 24px 12px;font-size:13px;color:var(--muted);}
.version-table th{font-size:12px;letter-spacing:.06em;color:var(--muted);font-weight:600;text-align:left;padding:12px 24px;border-bottom:1px solid var(--line);background:var(--surface);white-space:nowrap;}
.version-table td{padding:16px 24px;font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line);vertical-align:middle;}
.version-table tbody tr:nth-child(even){background:var(--hover-bg);}
.version-table tbody tr:last-child td{border-bottom:0;}
.version-table .v-name{font-weight:700;color:var(--ink);font-size:15px;}
.version-table .v-num{font-family:'Inter',system-ui,sans-serif;font-weight:600;color:var(--ink);}
.table-note{font-size:13px;color:var(--muted);padding:14px 24px 20px;border-top:1px solid var(--line);background:var(--surface);}

/* notice */
.notice{border-left:3px solid var(--brand);background:#F2F6F4;padding:16px 20px;border-radius:0 var(--r-card) var(--r-card) 0;font-size:14px;color:var(--ink-2);}
.notice-warn{border-left-color:var(--warm);background:#FBF3EE;}
.notice-dark{border-left-color:var(--ink);background:var(--hover-bg);}
.notice strong{color:var(--ink);}

/* system requirements */
.req-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.req-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;transition:border-color .2s ease,transform .2s ease;}
.req-card:hover{border-color:var(--brand);transform:translateY(-2px);}
.req-card h3{font-size:18px;margin-bottom:6px;}
.req-card .req-sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.req-list li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-top:1px solid var(--line);font-size:14px;}
.req-list li:first-child{border-top:0;}
.req-list .k{color:var(--muted);}
.req-list .v{color:var(--ink);font-weight:600;text-align:right;}

/* install accordion */
.install-layout{display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:start;}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:var(--line);--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-active-bg:transparent;--bs-accordion-active-color:var(--ink);}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-header{margin:0;}
.accordion-button{background:transparent;color:var(--ink);font-size:17px;font-weight:600;line-height:1.6;padding:20px 40px 20px 0;box-shadow:none;position:relative;border-radius:0!important;}
.accordion-button:not(.collapsed){background:transparent;color:var(--brand);box-shadow:none;}
.accordion-button:focus{box-shadow:none;outline:none;}
.accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.accordion-button .step-no{font-family:'Inter',system-ui,sans-serif;font-weight:800;color:var(--brand);margin-right:12px;font-size:14px;}
.accordion-button::after{background-image:none;content:"";width:16px;height:16px;position:absolute;right:4px;top:50%;margin-top:-8px;background:linear-gradient(var(--ink),var(--ink)) center/16px 1.5px no-repeat,linear-gradient(var(--ink),var(--ink)) center/1.5px 16px no-repeat;transition:transform .24s ease;}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);background-image:linear-gradient(var(--brand),var(--brand)) center/16px 1.5px no-repeat,linear-gradient(var(--brand),var(--brand)) center/1.5px 16px no-repeat;}
.accordion-body{padding:0 40px 24px 0;font-size:14px;line-height:1.8;color:var(--ink-2);}
.accordion-body ul li{position:relative;padding-left:16px;margin-bottom:8px;}
.accordion-body ul li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;background:var(--brand);border-radius:1px;}
.side-figure{margin:0;position:sticky;top:136px;}
.side-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);background:#EDEAE3;}
.side-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;}
.side-note{margin-top:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;}
.side-note h4{font-size:14px;margin-bottom:12px;}
.side-note li{font-size:13px;color:var(--ink-2);padding:8px 0;border-top:1px solid var(--line);}
.side-note li:first-child{border-top:0;}

/* checklist */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px;}
.check-item{display:flex;gap:14px;align-items:flex-start;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);transition:border-color .2s ease,transform .2s ease;}
.check-item:hover{border-color:var(--brand);transform:translateY(-2px);}
.check-box{width:16px;height:16px;flex:0 0 16px;border:1.5px solid var(--brand);border-radius:3px;margin-top:5px;position:relative;}
.check-box::after{content:"";position:absolute;left:4px;top:0;width:5px;height:9px;border-right:1.5px solid var(--brand);border-bottom:1.5px solid var(--brand);transform:rotate(40deg);}
.check-item h4{font-size:16px;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--muted);margin:0;}

/* faq */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.faq-aside h2{font-size:clamp(20px,2.4vw,26px);}
.faq-aside p{font-size:14px;color:var(--muted);margin-top:12px;}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);background-image:linear-gradient(var(--brand),var(--brand));background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;transition:background-size .22s ease;padding-bottom:2px;}
.textlink:hover{background-size:100% 1px;}

/* cta band */
.cta-band{background:var(--brand);border-radius:var(--r-card);padding:64px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:96px;}
.cta-band h2{color:#F7F6F2;font-size:clamp(20px,2.6vw,26px);max-width:16em;line-height:1.4;}
.cta-band p{color:#BBD3CC;font-size:14px;margin:12px 0 0;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-actions .textlink{color:var(--accent);background-image:linear-gradient(var(--accent),var(--accent));}

/* footer */
.site-footer{background:var(--dark);color:#A9B2AE;padding:72px 0 0;}
.site-footer h3{color:#F7F6F2;font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--accent);}
.footer-brand .brand-name{color:#F7F6F2;display:block;font-size:16px;font-weight:900;letter-spacing:-.02em;}
.footer-brand .brand-sub{color:#7D8A85;font-size:11px;}
.site-footer p{font-size:14px;line-height:1.9;color:#A9B2AE;max-width:32em;}
.footer-list li{margin-bottom:10px;}
.footer-list a{position:relative;font-size:14px;color:#A9B2AE;padding-left:0;transition:color .2s ease,padding-left .2s ease;}
.footer-list a::before{content:"";position:absolute;left:0;top:50%;width:2px;height:0;background:var(--accent);transform:translateY(-50%);transition:height .2s ease;}
.footer-list a:hover{color:var(--accent);padding-left:10px;}
.footer-list a:hover::before{height:14px;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:24px 0 32px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#7D8A85;}

/* floating */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:1020;display:flex;flex-direction:column;align-items:flex-end;gap:12px;opacity:0;pointer-events:none;transition:opacity .3s ease;}
.float-cta.is-on{opacity:1;pointer-events:auto;}
.to-top{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink);cursor:pointer;box-shadow:var(--shadow-nav);}
.to-top:hover{border-color:var(--brand);color:var(--brand);}
.float-pill{height:44px;padding:0 20px;display:inline-flex;align-items:center;border-radius:999px;background:var(--brand);color:#F7F6F2;font-size:14px;font-weight:600;text-decoration:none;box-shadow:var(--shadow-nav);transition:background .2s ease;}
.float-pill:hover{background:var(--brand-2);color:#fff;}
.mobile-bar{display:none;}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}
section[id]{scroll-margin-top:128px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .page-head-grid{grid-template-columns:1fr 300px;gap:32px;}
  .install-layout{grid-template-columns:1fr 300px;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
}
@media (max-width:991px){
  .page-head-grid{grid-template-columns:1fr;align-items:start;}
  .head-figure img{aspect-ratio:16/9;}
  .install-layout{grid-template-columns:1fr;}
  .side-figure{position:static;}
  .side-figure img{aspect-ratio:16/9;}
  .req-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .nav-tools .btn-sm{display:none;}
  .hamburger{display:inline-flex;}
  .search-form.is-open{position:fixed;left:0;right:0;top:0;bottom:0;background:rgba(247,246,242,.98);z-index:1040;flex-direction:column;justify-content:center;padding:24px;gap:16px;}
  .search-form.is-open input{width:100%;height:48px;font-size:16px;}
  .channel-label{display:none;}
  .section{padding-bottom:56px;}
  .page-head{padding-bottom:56px;}
  .stat-strip{grid-template-columns:1fr;gap:20px;padding:24px;}
  .version-table th,.version-table td{padding:12px 14px;}
  .version-table .hide-sm{display:none;}
  .cta-band{padding:32px 24px;margin-bottom:56px;}
  .float-cta{display:none;}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;height:56px;background:var(--surface);border-top:1px solid var(--line);z-index:1035;align-items:center;justify-content:space-between;padding:0 16px;gap:12px;box-shadow:0 -8px 24px rgba(20,23,26,.06);}
  .mobile-bar .btn{height:40px;padding:0 18px;font-size:14px;}
  .mobile-bar a.textlink{font-size:13px;}
  body{padding-bottom:72px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  .page-h1{font-size:24px;}
  .section-title{font-size:19px;}
  .accordion-button{font-size:15px;padding-right:34px;}
  .accordion-body{padding-right:0;}
  .version-table td{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#14171A;
  --ink-2:#3A4046;
  --muted:#6E757C;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DFD8;
  --brand:#14554A;
  --brand-2:#2E8B78;
  --accent:#C8F169;
  --dark:#0F1513;
  --warm:#B4551F;
  --hover-bg:#FBFAF7;
  --radius-card:6px;
  --radius-btn:2px;
  --radius-pill:999px;
  --shadow-nav:0 8px 24px rgba(20,23,26,.08);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#14554A;
  --bs-body-color:#3A4046;
  --bs-body-bg:#F7F6F2;
  --bs-border-color:#E2DFD8;
  --bs-border-radius:6px;
  --bs-font-sans-serif:"Noto Sans SC","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-link-color:#14554A;
  --bs-link-hover-color:#2E8B78;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(20,23,26,.035) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.28;margin:0;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-2);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:72px 0;scroll-margin-top:130px;}
.section-head{max-width:720px;margin-bottom:36px;}
.sec-index{
  display:inline-block;font-family:"Inter",sans-serif;font-size:12px;font-weight:800;
  letter-spacing:.14em;color:var(--brand);margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--muted);max-width:640px;}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px rgba(20,23,26,.06);}
.nav-top{height:56px;display:flex;align-items:center;}
.nav-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);min-width:0;}
.brand-mark{width:10px;height:10px;background:var(--accent);flex:0 0 10px;display:block;border-radius:1px;}
.brand-text{min-width:0;}
.brand-name{display:block;font-size:15px;font-weight:900;letter-spacing:-.02em;color:var(--ink);line-height:1.2;white-space:nowrap;}
.brand-sub{display:block;font-size:11px;color:var(--muted);letter-spacing:.1em;line-height:1.3;}
.nav-right{display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid transparent;border-radius:var(--radius-btn);
  color:var(--ink);cursor:pointer;transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--hover-bg);border-color:var(--line);}
.search-wrap{display:flex;align-items:center;gap:8px;}
.search-panel{width:0;opacity:0;overflow:hidden;transition:width .28s var(--ease),opacity .2s var(--ease);}
.search-wrap.is-open .search-panel{width:240px;opacity:1;}
.search-input{
  width:100%;height:34px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 12px;font-size:13px;color:var(--ink);background:var(--surface);font-family:inherit;
}
.search-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
.menu-btn{display:none;}
.menu-btn .bar{display:block;width:16px;height:1.5px;background:var(--ink);margin:2.5px 0;border-radius:1px;}

.btn{--bs-btn-border-radius:2px;font-weight:600;transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .15s var(--ease);}
.btn-primary{
  --bs-btn-bg:var(--brand);--bs-btn-border-color:var(--brand);
  --bs-btn-color:#F7F6F2;--bs-btn-hover-color:#F7F6F2;--bs-btn-active-color:#F7F6F2;
  --bs-btn-hover-bg:var(--brand-2);--bs-btn-hover-border-color:var(--brand-2);
  --bs-btn-active-bg:var(--brand);--bs-btn-active-border-color:var(--brand);
  height:44px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;border:1px solid var(--brand);
}
.btn-primary:active{transform:translateY(1px);}
.btn-nav{height:34px;padding:0 14px;font-size:13px;}

.channel-tabs{height:48px;border-top:1px solid rgba(226,223,216,.75);}
.channel-inner{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-label{
  flex:0 0 auto;font-size:12px;color:var(--muted);letter-spacing:.12em;white-space:nowrap;
  padding-right:12px;border-right:1px solid var(--line);
}
.pill{
  flex:0 0 auto;scroll-snap-align:start;font-size:13px;padding:5px 14px;white-space:nowrap;
  border:1px solid var(--line);border-radius:var(--radius-pill);color:var(--ink-2);background:transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.pill:hover{background:var(--surface);border-color:var(--ink);color:var(--ink);}
.pill.is-active{background:var(--ink);border-color:var(--ink);color:#F7F6F2;}
.pill.is-active:hover{color:#F7F6F2;}

.mobile-drawer{display:none;}
.mobile-drawer.is-open{
  display:block;padding:12px 0 18px;border-top:1px solid var(--line);background:var(--paper);
}
.drawer-link{
  display:block;padding:10px 2px;font-size:14px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-link:last-child{border-bottom:none;}
.drawer-link.is-active{color:var(--brand);font-weight:700;}

/* ---------- 页头 ---------- */
.page-head{padding:40px 0 72px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C9C5BC;}
.crumbs .current{color:var(--ink-2);}
.page-head-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:end;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.1em;color:var(--brand);
  border:1px solid var(--line);background:var(--surface);padding:4px 10px;border-radius:4px;margin-bottom:18px;
}
.page-title{font-size:clamp(26px,3.4vw,40px);line-height:1.22;margin-bottom:18px;letter-spacing:-.025em;}
.lead{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:620px;margin-bottom:22px;}
.head-meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.head-meta span{display:inline-flex;align-items:center;gap:8px;}
.head-meta span::before{content:"";width:4px;height:4px;background:var(--brand-2);border-radius:50%;display:inline-block;}
.head-figure{margin:0;}
.head-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;background:#EDEAE3;
  border:1px solid var(--line);border-radius:var(--radius-card);
}
.head-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;}

/* ---------- 安全清单 ---------- */
.checklist{display:grid;gap:24px;}
.check-item{
  display:grid;grid-template-columns:16px 1fr;gap:18px;
  padding:22px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.check-item:hover{transform:translateY(-2px);border-color:var(--brand);background:var(--surface);}
.check-box{
  width:16px;height:16px;border:1px solid var(--brand);border-radius:3px;
  position:relative;margin-top:7px;background:rgba(200,241,105,.25);flex:0 0 16px;
}
.check-box::after{
  content:"";position:absolute;left:4px;top:0;width:6px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(40deg);
}
.check-body h3{font-size:17px;margin-bottom:6px;}
.check-body p{font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.check-tag{
  display:inline-block;font-size:12px;color:var(--brand);border:1px solid var(--line);
  border-radius:4px;padding:1px 8px;margin-bottom:8px;letter-spacing:.04em;
}

/* ---------- 提示条 ---------- */
.alert-warm{
  background:#FBF3EE;border-left:3px solid var(--warm);
  padding:16px 20px;border-radius:0 var(--radius-card) var(--radius-card) 0;
  font-size:14px;line-height:1.8;color:#8A441C;margin-top:32px;
}
.alert-warm strong{color:var(--warm);font-weight:700;}

/* ---------- 风险对照 ---------- */
.risk-wrap{border-top:1px solid var(--line);}
.risk-row{
  display:grid;grid-template-columns:1fr 1.25fr;gap:24px;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.risk-row:hover{background:var(--hover-bg);}
.risk-case{display:flex;gap:12px;font-size:15px;font-weight:700;color:var(--ink);line-height:1.6;}
.risk-case::before{content:"—";color:var(--brand-2);font-weight:700;flex:0 0 auto;}
.risk-fix{font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{margin:0;}
.faq-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:20px 0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);letter-spacing:-.01em;line-height:1.5;
  transition:color .2s var(--ease);
}
.faq-trigger:hover{color:var(--brand);}
.faq-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.plus{position:relative;width:14px;height:14px;flex:0 0 14px;transition:transform .24s var(--ease);}
.plus::before,.plus::after{content:"";position:absolute;background:var(--brand);border-radius:1px;}
.plus::before{left:0;top:6.5px;width:14px;height:1px;}
.plus::after{top:0;left:6.5px;width:1px;height:14px;}
.faq-trigger[aria-expanded="true"] .plus{transform:rotate(45deg);}
.faq-a{padding:0 0 22px;font-size:14px;line-height:1.85;color:var(--muted);max-width:760px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);border-radius:var(--radius-card);
  padding:56px 48px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta-band h2{color:#F7F6F2;font-size:clamp(20px,2.4vw,26px);line-height:1.35;max-width:560px;}
.cta-band p{color:rgba(247,246,242,.74);font-size:14px;margin:10px 0 0;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.btn-accent{
  background:var(--accent);color:var(--ink);border:1px solid var(--accent);
  height:46px;padding:0 24px;border-radius:var(--radius-btn);font-size:14px;font-weight:700;
  display:inline-flex;align-items:center;gap:8px;transition:filter .2s var(--ease),transform .15s var(--ease);
}
.btn-accent:hover{filter:brightness(1.08);color:var(--ink);}
.btn-accent:active{transform:translateY(1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  background-image:linear-gradient(currentColor,currentColor);
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  transition:background-size .22s var(--ease),color .2s var(--ease);padding-bottom:2px;
}
.link-arrow:hover{background-size:100% 1px;color:var(--brand-2);}
.cta-band .link-arrow{color:rgba(247,246,242,.86);}
.cta-band .link-arrow:hover{color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(247,246,242,.7);padding:72px 0 28px;margin-top:96px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#F7F6F2;font-size:15px;}
.footer-brand .brand-sub{color:rgba(247,246,242,.5);}
.site-footer p{font-size:13px;line-height:1.8;color:rgba(247,246,242,.6);max-width:340px;margin:0;}
.site-footer h3{font-size:13px;color:#F7F6F2;letter-spacing:.08em;margin-bottom:16px;font-weight:700;}
.footer-list{display:grid;gap:10px;}
.footer-list a{
  display:inline-block;font-size:13.5px;color:rgba(247,246,242,.68);
  padding-left:0;border-left:2px solid transparent;transition:color .2s var(--ease),padding-left .2s var(--ease),border-color .2s var(--ease);
}
.footer-list a:hover{color:var(--accent);padding-left:8px;border-left-color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:20px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:rgba(247,246,242,.48);
}

/* ---------- 浮动入口 ---------- */
.float-dock{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.float-dock.is-visible{opacity:1;pointer-events:auto;transform:none;}
.to-top{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);border-radius:50%;
  color:var(--ink);cursor:pointer;box-shadow:0 8px 24px rgba(20,23,26,.08);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.to-top:hover{border-color:var(--brand);color:var(--brand);}
.float-link{
  height:44px;padding:0 18px;border-radius:var(--radius-pill);
  background:var(--brand);color:#F7F6F2;font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(20,23,26,.12);
  transition:background-color .2s var(--ease);
}
.float-link:hover{background:var(--brand-2);color:#F7F6F2;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .wrap{padding:0 28px;}
  .page-head-grid{gap:36px;}
}
@media (max-width:991px){
  .section{padding:56px 0;}
  .page-head{padding:32px 0 56px;}
  .page-head-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .head-figure img{aspect-ratio:16/9;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:24px;}
  .cta-actions{flex-direction:row;align-items:center;gap:20px;flex-wrap:wrap;}
  .risk-row{grid-template-columns:1fr;gap:8px;}
  .site-footer{padding:56px 0 24px;margin-top:72px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .brand-name{font-size:13px;}
  .brand-sub{font-size:10px;letter-spacing:.06em;}
  .btn-nav{display:none;}
  .menu-btn{display:inline-flex;}
  .channel-label{display:none;}
  .search-wrap.is-open .search-panel{position:absolute;left:0;right:0;top:56px;width:100%;padding:10px 20px;background:var(--paper);border-bottom:1px solid var(--line);}
  .search-panel{position:static;}
  .search-wrap.is-open .search-panel{width:100%;opacity:1;}
  .site-head{position:sticky;}
  .nav-top{height:54px;}
  .channel-tabs{height:46px;}
  .channel-inner{height:46px;}
  .page-title{font-size:clamp(24px,6.4vw,30px);}
  .lead{font-size:15px;}
  .check-item{grid-template-columns:16px 1fr;padding:18px;gap:14px;}
  .faq-trigger{font-size:16px;padding:18px 0;}
  .cta-band{padding:32px 22px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .btn-accent{justify-content:center;}
  .float-dock{
    right:0;left:0;bottom:0;flex-direction:row;align-items:center;justify-content:space-between;
    background:var(--surface);border-top:1px solid var(--line);
    padding:8px 16px;gap:14px;transform:translateY(100%);
  }
  .float-dock.is-visible{transform:none;}
  .to-top{display:none;}
  .float-link{flex:1;justify-content:center;border-radius:2px;height:40px;box-shadow:none;}
  body{padding-bottom:72px;}
  .site-footer{padding-bottom:64px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .head-meta{font-size:12px;gap:6px 16px;}
  .crumbs{font-size:12px;}
  .section{padding:48px 0;}
}

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

/* roulang page: category4 */
:root{
  --ink:#14171A;
  --ink-2:#3A4046;
  --muted:#6E757C;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DFD8;
  --brand:#14554A;
  --brand-2:#2E8B78;
  --accent:#C8F169;
  --dark:#0F1513;
  --warm:#B4551F;
  --hover-bg:#FBFAF7;
  --radius-card:6px;
  --radius-btn:2px;
  --radius-pill:999px;
  --shadow-nav:0 8px 24px rgba(20,23,26,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Inter","Noto Sans SC",sans-serif;

  --bs-primary:#14554A;
  --bs-primary-rgb:20,85,74;
  --bs-body-color:#3A4046;
  --bs-body-bg:#F7F6F2;
  --bs-border-color:#E2DFD8;
  --bs-border-radius:6px;
  --bs-border-radius-sm:2px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#14554A;
  --bs-link-hover-color:#2E8B78;
  --bs-emphasis-color:#14171A;
  --bs-secondary-color:#6E757C;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:104px;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  color:var(--ink-2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-2);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.25;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,button,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:4000;
  background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:2px;
}
.skip-link:focus{left:12px;top:12px;color:var(--paper);}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ===== 双层导航 ===== */
.site-header{position:relative;z-index:1030;}
.nav-top{
  position:fixed;top:0;left:0;right:0;height:56px;
  background:rgba(247,246,242,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  z-index:1032;
  transition:box-shadow .24s var(--ease);
}
.site-header.is-stuck .nav-top{box-shadow:var(--shadow-nav);}
.nav-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;}
.brand:hover{color:var(--ink);}
.brand-mark{width:10px;height:10px;background:var(--accent);flex:0 0 10px;display:inline-block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:900;letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.02em;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-search{display:flex;align-items:center;position:relative;}
.nav-search input{
  width:0;height:38px;opacity:0;padding:0;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:var(--surface);font-size:14px;
  transition:width .26s var(--ease),opacity .2s var(--ease),padding .26s var(--ease);
}
.nav-search.is-open input{width:240px;opacity:1;padding:0 14px;}
.nav-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:transparent;color:var(--ink-2);cursor:pointer;font-size:13px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.nav-burger{display:none;}
.channel-tabs{
  position:fixed;top:56px;left:0;right:0;height:48px;
  background:rgba(247,246,242,.96);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  z-index:1031;
  transition:box-shadow .24s var(--ease);
}
.site-header.is-stuck .channel-tabs{box-shadow:var(--shadow-nav);}
.channel-tabs .wrap{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;overflow-y:hidden;-ms-overflow-style:none;scrollbar-width:none;}
.channel-tabs .wrap::-webkit-scrollbar{display:none;}
.channel-label{font-size:12px;color:var(--muted);letter-spacing:.06em;flex:0 0 auto;margin-right:4px;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;line-height:1;
  padding:8px 15px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--ink-2);background:transparent;
  white-space:nowrap;scroll-snap-align:start;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.pill:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.pill.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.mobile-menu{
  position:fixed;top:104px;left:0;right:0;display:none;
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:8px 20px 18px;z-index:1030;
  box-shadow:var(--shadow-nav);
}
.mobile-menu.is-open{display:block;}
.mobile-menu a{display:block;padding:13px 4px;border-bottom:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:500;}
.mobile-menu a:last-child{border-bottom:0;}

/* ===== 按钮与文字链 ===== */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:0;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .12s var(--ease);
}
.btn-main{background:var(--brand);border-color:var(--brand);color:#F7F6F2;}
.btn-main:hover{background:var(--brand-2);border-color:var(--brand-2);color:#FFFFFF;}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-accent{background:var(--accent);border-color:var(--accent);color:var(--ink);}
.btn-accent:hover{filter:brightness(1.08);color:var(--ink);}
.btn-main:active,.btn-ghost:active,.btn-accent:active{transform:translateY(1px);}
.btn-main .arrow,.btn-ghost .arrow,.btn-accent .arrow{transition:transform .2s var(--ease);}
.btn-main:hover .arrow,.btn-ghost:hover .arrow,.btn-accent:hover .arrow{transform:translateX(4px);}
.btn-main--sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{
  display:inline-block;font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 1px;
  transition:background-size .22s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{color:var(--brand-2);background-image:linear-gradient(var(--brand-2),var(--brand-2));background-size:100% 1px;}

/* ===== 页头 ===== */
.page-head{
  position:relative;
  padding:56px 0 0;
  background-image:linear-gradient(rgba(247,246,242,.94),rgba(247,246,242,.97)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#BFC3C6;}
.crumbs .current{color:var(--muted);}
.head-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:48px;align-items:end;padding-bottom:72px;}
.head-copy h1{font-size:clamp(28px,3.6vw,44px);font-weight:900;line-height:1.14;letter-spacing:-.02em;max-width:15em;}
.head-copy .lede{margin-top:20px;font-size:16px;line-height:1.75;color:var(--ink-2);max-width:34em;}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:5px 12px;background:var(--surface);
}
.meta-chip .num{font-family:var(--font-num);font-weight:600;color:var(--brand);}
.head-figure{margin:0;}
.head-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#EDEAE3;
}
.head-figure figcaption{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.6;}

/* ===== 通用板块 ===== */
.section{padding:96px 0 0;}
.section--tight{padding-top:72px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:900;}
.section-head p{font-size:14px;color:var(--muted);margin:8px 0 0;max-width:40em;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:3px;background:var(--accent);display:inline-block;}

/* ===== 搜索面板 ===== */
.search-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;
}
.search-panel h2{font-size:20px;font-weight:800;margin-bottom:8px;}
.search-panel .hint{font-size:13px;color:var(--muted);margin-bottom:20px;}
.search-bar{display:flex;gap:12px;flex-wrap:wrap;}
.search-bar .field{flex:1 1 320px;display:flex;flex-direction:column;gap:8px;}
.search-bar label{font-size:13px;color:var(--ink);font-weight:600;}
.search-bar input{
  height:44px;width:100%;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:var(--surface);font-size:15px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-bar input::placeholder{color:#9AA0A5;}
.search-bar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
.search-bar .btn-main{flex:0 0 auto;}
.hot-words{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:20px;}
.hot-words .label{font-size:12px;color:var(--muted);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;font-size:12px;padding:4px 10px;
  border:1px solid var(--line);border-radius:4px;color:var(--ink-2);background:transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}

/* ===== FAQ 分组 ===== */
.faq-groups{display:block;}
.faq-group{margin-bottom:56px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:12px;}
.faq-group-head h2{font-size:20px;font-weight:900;}
.faq-group-head .count{
  font-family:var(--font-num);font-size:12px;font-weight:600;color:var(--brand);
  border:1px solid var(--line);border-radius:4px;padding:2px 8px;background:var(--surface);
}
.faq-group-head .desc{flex:1 1 100%;font-size:14px;color:var(--muted);line-height:1.7;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;border:0;}
.accordion-item{
  background:transparent;border:0;border-top:1px solid var(--line);border-radius:0;
}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-header{margin:0;}
.accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 0;background:transparent;border:0;border-radius:0;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;text-align:left;
  box-shadow:none;transition:color .2s var(--ease);
}
.accordion-button:hover{color:var(--brand);}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.accordion-button::after{display:none !important;}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:1px;}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px;}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px;transition:transform .24s var(--ease);}
.accordion-button:not(.collapsed) .faq-icon::after{transform:rotate(90deg);}
.accordion-body{
  padding:0 0 22px;font-size:14px;line-height:1.8;color:var(--ink-2);max-width:46em;
}
.accordion-collapse{transition:height .24s var(--ease);}

/* ===== 双栏：帮助路径 + 公告 ===== */
.duo{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px;align-items:start;}
.path-list{border-top:1px solid var(--line);}
.path-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.path-item:hover{background:var(--hover-bg);}
.path-num{
  font-family:var(--font-num);font-size:32px;font-weight:400;line-height:1;
  color:var(--brand-2);letter-spacing:-.03em;
}
.path-item h3{font-size:17px;font-weight:800;margin-bottom:8px;}
.path-item p{font-size:14px;line-height:1.75;color:var(--ink-2);}
.path-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;}

.notice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;
}
.notice-card h2{font-size:17px;font-weight:800;margin-bottom:6px;}
.notice-card .hint{font-size:13px;color:var(--muted);margin-bottom:18px;}
.notice-list li + li{border-top:1px solid var(--line);}
.notice-link{
  display:grid;grid-template-columns:auto minmax(0,1fr) 16px;gap:14px;align-items:start;
  padding:16px 0;color:var(--ink);font-size:14px;line-height:1.6;
}
.notice-link:hover{color:var(--brand);}
.notice-date{font-family:var(--font-num);font-size:12px;font-weight:600;color:var(--muted);padding-top:2px;}
.notice-title{display:block;}
.notice-arrow{color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease);}
.notice-link:hover .notice-arrow{transform:translateX(3px);color:var(--brand);}

/* ===== 提示条 ===== */
.tip{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 20px;border-left:3px solid var(--brand);background:#F2F6F4;
  border-radius:2px;font-size:14px;line-height:1.75;color:var(--ink-2);
  margin-top:32px;
}
.tip strong{color:var(--ink);font-weight:700;}

/* ===== CTA 带 ===== */
.cta-band{
  margin-top:96px;background:var(--brand);border-radius:var(--radius-card);
  padding:64px;
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:32px;align-items:center;
}
.cta-band h2{color:#F7F6F2;font-size:clamp(20px,2.2vw,26px);font-weight:900;line-height:1.35;}
.cta-band p{color:rgba(247,246,242,.78);font-size:14px;margin-top:12px;line-height:1.7;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:flex-end;}
.cta-band .link-arrow{color:var(--accent);background-image:linear-gradient(var(--accent),var(--accent));}
.cta-band .link-arrow:hover{color:var(--accent);background-image:linear-gradient(var(--accent),var(--accent));}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:#B9C0C4;padding:72px 0 32px;margin-top:96px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{width:10px;height:10px;background:var(--accent);flex:0 0 10px;display:inline-block;}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.15;}
.footer-brand .brand-name{font-size:15px;font-weight:900;color:#F7F6F2;}
.footer-brand .brand-sub{font-size:11px;color:#8C959A;}
.site-footer p{font-size:13px;line-height:1.8;color:#9AA1A6;max-width:30em;}
.site-footer h3{font-size:13px;font-weight:700;color:#F7F6F2;letter-spacing:.08em;margin-bottom:16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{
  display:inline-block;font-size:14px;color:#B9C0C4;padding-left:0;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-list a:hover{color:var(--accent);padding-left:10px;border-left:2px solid var(--accent);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:#8C959A;line-height:1.7;
}

/* ===== 浮动 CTA / 返回顶部 / 侧边锚点 ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;justify-content:center;
  width:132px;height:44px;border-radius:var(--radius-pill);
  background:var(--brand);color:#F7F6F2;font-size:14px;font-weight:700;
  box-shadow:var(--shadow-nav);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease),background .2s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;}
.float-cta:hover{background:var(--brand-2);color:#FFFFFF;}
.to-top{
  position:fixed;right:24px;bottom:80px;z-index:1040;
  width:40px;height:40px;border-radius:2px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:15px;cursor:pointer;
  opacity:0;visibility:hidden;box-shadow:var(--shadow-nav);
  transition:opacity .3s var(--ease),visibility .3s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;}
.to-top:hover{background:var(--ink);color:var(--paper);}
.anchor-nav{display:none;}
.mobile-bar{display:none;}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ===== 响应式 ===== */
@media (min-width:1400px){
  .anchor-nav{
    display:flex;position:fixed;right:28px;top:50%;transform:translateY(-50%);
    flex-direction:column;gap:14px;z-index:1035;
  }
  .anchor-nav a{
    display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);
    text-decoration:none;letter-spacing:.02em;
  }
  .anchor-nav .dot{width:2px;height:10px;background:#D6D2CA;display:inline-block;transition:all .24s var(--ease);}
  .anchor-nav a:hover .dot,.anchor-nav a.is-active .dot{height:24px;background:var(--brand);}
  .anchor-nav a:hover,.anchor-nav a.is-active{color:var(--brand);}
}
@media (max-width:1199px){
  .head-grid{grid-template-columns:1fr;gap:36px;align-items:start;}
  .head-figure img{aspect-ratio:16/9;}
  .head-figure figcaption{margin-top:10px;}
  .duo{grid-template-columns:1fr;gap:40px;}
}
@media (max-width:991px){
  body{padding-top:104px;}
  .nav-search.is-open input{width:180px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .section{padding-top:72px;}
  .site-footer{padding-top:56px;}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:1045;
    height:56px;align-items:center;gap:14px;padding:0 16px;
    background:var(--surface);border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(20,23,26,.08);
  }
  .mobile-bar .btn-main{flex:1 1 auto;height:40px;font-size:14px;padding:0 16px;}
  .mobile-bar .link-arrow{flex:0 0 auto;font-size:13px;}
  body{padding-bottom:72px;}
  .float-cta,.to-top,.anchor-nav{display:none !important;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .nav-search{display:none;}
  .nav-burger{display:inline-flex;}
  .brand-name{font-size:14px;}
  .brand-sub{font-size:10px;}
  .page-head{padding-top:36px;}
  .head-grid{padding-bottom:56px;gap:28px;}
  .head-copy .lede{font-size:15px;margin-top:16px;}
  .section{padding-top:56px;}
  .search-panel{padding:22px 20px;}
  .search-bar .btn-main{width:100%;}
  .path-item{grid-template-columns:48px minmax(0,1fr);gap:16px;padding:22px 0;}
  .path-num{font-size:26px;}
  .cta-band{margin-top:56px;padding:32px 22px;}
  .site-footer{margin-top:56px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .accordion-button{font-size:15px;padding:18px 0;}
  .notice-card{padding:22px 18px;}
}
@media (max-width:520px){
  .head-meta{gap:8px;}
  .meta-chip{font-size:11px;padding:4px 10px;}
  .hot-words{gap:6px;}
  .cta-actions .btn-accent{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
  }
  .reveal{opacity:1;transform:none;}
}