/* roulang page: index */
:root{
  --ink-900:#101413;
  --ink-700:#2C3331;
  --ink-500:#5A625F;
  --primary:#0F3D38;
  --primary-light:#15574F;
  --accent:#12B39B;
  --accent-weak:#DFF5F0;
  --sand-100:#F7F5F1;
  --sand-200:#EFEBE4;
  --line:#E2DDD4;
  --white:#FFFFFF;
  --ok:#1E9E6A;
  --warn:#C9831A;
  --err:#C24A3B;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,20,19,.05);
  --sh-2:0 10px 30px -12px rgba(16,20,19,.18);
  --sh-3:0 24px 60px -24px rgba(16,20,19,.28);
  --t-fast:160ms;
  --t:240ms;
  --t-slow:320ms;
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--sand-100);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t-fast) var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--ink-900);font-weight:700;letter-spacing:-0.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent-weak);color:var(--primary);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-sm);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--sand{background:var(--sand-200);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent);font-weight:700;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.25rem);}
.section-head p{color:var(--ink-500);font-size:.9375rem;max-width:560px;margin-top:10px;}
.text-link{
  color:var(--accent);font-weight:700;font-size:.9375rem;
  border-bottom:1px solid transparent;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
  padding-bottom:2px;white-space:nowrap;
}
.text-link:hover{border-color:var(--accent);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent-weak);color:var(--primary);
  border-radius:var(--r-pill);padding:4px 12px;
  font-size:.75rem;font-weight:700;letter-spacing:.02em;
}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--ink-500);}
.mono{font-family:var(--font-mono);}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:8px;
  font-size:.9375rem;font-weight:700;line-height:1;
  transition:transform var(--t) var(--ease),background var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
  min-width:44px;
}
.btn svg{transition:transform var(--t) var(--ease);}
.btn-primary{background:var(--primary);color:var(--white);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-light);box-shadow:var(--sh-2);}
.btn-primary:hover svg{transform:translateX(2px);}
.btn-ghost{background:transparent;color:var(--ink-900);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--accent);background:var(--accent-weak);}
.btn-light{background:var(--white);color:var(--primary);box-shadow:var(--sh-2);}
.btn-light:hover{background:var(--accent-weak);box-shadow:var(--sh-3);}
.btn-light:hover svg{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
/* ---------- top line ---------- */
.topline{
  background:var(--primary);color:rgba(255,255,255,.9);
  font-size:.8125rem;line-height:1;
}
.topline .container{display:flex;align-items:center;justify-content:center;gap:12px;height:36px;}
.topline strong{color:var(--white);font-weight:700;}
.topline .topline-arrow{display:inline-flex;align-items:center;gap:4px;color:var(--accent);font-weight:700;}
.topline a:hover{color:var(--white);}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.98);
  border-bottom:1px solid transparent;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1);background:rgba(247,245,241,.96);}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-md);
  background:var(--primary);color:var(--white);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:.8125rem;font-weight:700;letter-spacing:.02em;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:var(--font-serif);font-size:1.0625rem;color:var(--ink-900);letter-spacing:-0.01em;}
.brand-text em{font-style:normal;font-size:.6875rem;letter-spacing:.14em;color:var(--ink-500);}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-item{position:relative;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  height:72px;padding:0 16px;font-size:.9375rem;font-weight:500;color:var(--ink-700);
  transition:color var(--t) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:20px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform var(--t) var(--ease);
}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after,.nav-item:focus-within .nav-link::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink-900);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-md);border:1px solid var(--line);color:var(--ink-700);
  background:var(--white);
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease),background var(--t) var(--ease);
}
.icon-btn:hover{border-color:var(--accent);color:var(--primary);background:var(--accent-weak);}
.nav-cta{height:44px;padding:0 20px;font-size:.875rem;}
.nav-toggle{display:none;}
/* mega */
.mega{
  position:absolute;top:100%;right:0;width:720px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);padding:26px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease),visibility var(--t);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0);}
.mega h4{font-size:.75rem;letter-spacing:.08em;color:var(--ink-500);font-family:var(--font-mono);text-transform:uppercase;margin-bottom:14px;font-weight:700;}
.mega-list li + li{margin-top:12px;}
.mega-list a{display:flex;gap:10px;align-items:flex-start;padding:8px;border-radius:var(--r-sm);transition:background var(--t) var(--ease);}
.mega-list a:hover{background:var(--sand-100);}
.mega-list .mi-ico{
  width:30px;height:30px;flex:0 0 30px;border-radius:8px;background:var(--accent-weak);
  display:inline-flex;align-items:center;justify-content:center;color:var(--primary);
}
.mega-list strong{display:block;font-size:.875rem;color:var(--ink-900);font-weight:700;}
.mega-list span{display:block;font-size:.75rem;color:var(--ink-500);line-height:1.5;}
.mega-time{font-family:var(--font-mono);font-size:.6875rem;color:var(--ink-500);}
.mega-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;color:#fff;
  min-height:170px;display:flex;flex-direction:column;justify-content:flex-end;
  padding:18px;background:var(--primary);
}
.mega-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;}
.mega-card *{position:relative;}
.mega-card strong{font-family:var(--font-serif);font-size:1.0625rem;display:block;margin-bottom:6px;}
.mega-card p{font-size:.8125rem;color:rgba(255,255,255,.82);line-height:1.6;}
/* drawer */
.drawer{display:none;}
/* ---------- hero ---------- */
.hero{position:relative;background:var(--sand-100);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;opacity:.34;
  -webkit-mask-image:linear-gradient(180deg,#000,rgba(0,0,0,0));
  mask-image:linear-gradient(180deg,#000,rgba(0,0,0,0));
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;
  padding-top:88px;padding-bottom:96px;align-items:center;
}
.hero-title{font-size:clamp(2.25rem,4.6vw,3.6rem);line-height:1.22;margin-bottom:22px;}
.hero-title .mark{position:relative;display:inline-block;color:var(--primary);}
.hero-title .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:3px;border-radius:3px;
  background:var(--accent);opacity:.55;
}
.hero-sub{font-size:1.0625rem;color:var(--ink-500);max-width:520px;margin-bottom:32px;}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:34px;}
.trust{display:flex;align-items:center;gap:0;flex-wrap:wrap;}
.trust li{
  position:relative;font-size:.8125rem;color:var(--ink-500);
  padding:0 16px;display:flex;align-items:center;gap:6px;
}
.trust li:first-child{padding-left:0;}
.trust li + li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--line);
}
.trust li span.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero-visual{position:relative;}
.hero-visual > img{
  width:100%;height:420px;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
}
.check-card{
  position:absolute;left:-28px;bottom:-32px;width:min(360px,92%);
  background:var(--white);border-radius:var(--r-md);box-shadow:var(--sh-3);
  padding:22px 22px 20px;border-top:3px solid var(--accent);
}
.check-card h3{font-size:1.0625rem;margin-bottom:8px;}
.check-card p{font-size:.8125rem;color:var(--ink-500);line-height:1.7;margin-bottom:16px;}
.check-card .btn{height:44px;width:100%;font-size:.875rem;}
/* ---------- edge (卖点错落) ---------- */
.edge-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch;}
.edge-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;position:relative;overflow:hidden;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.edge-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(18,179,155,.3);}
.edge-card--main{display:flex;flex-direction:column;justify-content:space-between;gap:32px;}
.edge-num{
  font-family:var(--font-mono);font-size:clamp(3.4rem,7vw,5.2rem);font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--sand-200);letter-spacing:-0.02em;
}
.edge-card h3{font-size:1.25rem;margin-bottom:12px;}
.edge-card p{font-size:.9375rem;color:var(--ink-500);}
.edge-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.edge-ico{
  width:40px;height:40px;border-radius:var(--r-sm);background:var(--accent-weak);
  display:inline-flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:18px;
}
.edge-card--main .edge-visual{
  width:100%;height:200px;border-radius:var(--r-md);object-fit:cover;
}
/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.flow-step{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;position:relative;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(18,179,155,.3);}
.flow-step img{width:100%;height:168px;object-fit:cover;border-radius:var(--r-sm);margin-bottom:18px;}
.flow-no{
  position:absolute;top:14px;left:14px;z-index:2;
  background:var(--white);color:var(--primary);border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:.75rem;font-weight:700;
  padding:4px 10px;box-shadow:var(--sh-1);
}
.flow-step h3{font-size:1.0625rem;margin-bottom:10px;}
.flow-step p{font-size:.875rem;color:var(--ink-500);}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-feature{
  grid-column:span 2;display:grid;grid-template-columns:1.15fr 1fr;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(18,179,155,.3);}
.news-feature-media{display:block;overflow:hidden;}
.news-feature-media img{width:100%;height:100%;min-height:300px;object-fit:cover;transition:transform var(--t-slow) var(--ease);}
.news-feature:hover .news-feature-media img{transform:scale(1.03);}
.news-feature .news-body{padding:30px;display:flex;flex-direction:column;gap:14px;justify-content:center;}
.news-feature h3{font-size:1.375rem;line-height:1.4;}
.news-feature h3 a:hover{color:var(--primary);}
.news-feature p{color:var(--ink-500);font-size:.9375rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row{
  display:grid;grid-template-columns:140px 1fr;gap:18px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.news-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(18,179,155,.3);}
.news-row-media{overflow:hidden;border-radius:var(--r-sm);}
.news-row-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform var(--t-slow) var(--ease);}
.news-row:hover .news-row-media img{transform:scale(1.04);}
.news-row-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.news-row h3{
  font-size:1rem;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row h3 a:hover{color:var(--primary);}
.news-row p{
  font-size:.8125rem;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:12px;font-size:.75rem;color:var(--ink-500);font-family:var(--font-mono);margin-top:auto;}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--white);border:1px dashed var(--line);border-radius:var(--r-md);
  color:var(--ink-500);text-align:center;padding:40px 24px;
}
.empty-state svg{color:var(--accent);opacity:.7;}
.empty-state p{font-size:.9375rem;}
/* ---------- proof ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 0;margin-bottom:56px;
}
.stat{position:relative;text-align:center;padding:6px 16px;}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--line);
}
.stat b{display:block;font-family:var(--font-mono);font-size:clamp(1.6rem,3vw,2.25rem);color:var(--primary);line-height:1.1;letter-spacing:-0.02em;}
.stat span{display:block;font-size:.8125rem;color:var(--ink-500);margin-top:8px;}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:56px;}
.quote{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;border-left:3px solid var(--accent);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.quote:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote:nth-child(1){margin-top:0;}
.quote:nth-child(2){margin-top:40px;}
.quote p{font-size:.9375rem;color:var(--ink-700);margin-bottom:18px;}
.quote footer{display:flex;align-items:center;gap:12px;}
.quote .avatar{
  width:38px;height:38px;border-radius:50%;background:var(--sand-200);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:.8125rem;color:var(--primary);font-weight:700;
}
.quote cite{font-style:normal;font-size:.8125rem;color:var(--ink-500);display:block;}
.quote b{display:block;font-size:.875rem;color:var(--ink-900);}
.logo-wall{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.logo-wall div{
  height:76px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--white);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:.8125rem;color:var(--ink-500);letter-spacing:.04em;
  filter:grayscale(1);opacity:.72;
  transition:filter var(--t) var(--ease),opacity var(--t) var(--ease),border-color var(--t) var(--ease);
}
.logo-wall div:hover{filter:grayscale(0);opacity:1;border-color:rgba(18,179,155,.35);color:var(--primary);}
/* ---------- faq ---------- */
.faq{max-width:900px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px 18px;transition:background var(--t) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary h3{font-size:1rem;font-weight:600;font-family:var(--font-sans);color:var(--ink-900);}
.faq-item summary:hover{background:var(--sand-200);}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform var(--t) var(--ease);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:transform var(--t) var(--ease);}
.faq-item[open]{background:var(--white);border-left:3px solid var(--accent);}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-body{padding:0 18px 22px;color:var(--ink-500);font-size:.9375rem;}
.faq-body p + p{margin-top:10px;}
/* ---------- cta band ---------- */
.cta-band{background:var(--primary);color:rgba(255,255,255,.86);position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(18,179,155,.32);
}
.cta-band .container{position:relative;z-index:2;padding-top:88px;padding-bottom:88px;display:flex;gap:40px;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,2.6vw,2.25rem);max-width:620px;}
.cta-band p{margin-top:14px;max-width:560px;font-size:.9375rem;}
/* ---------- footer ---------- */
.site-footer{background:#0B2B27;color:rgba(255,255,255,.72);padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.site-footer h4{color:#fff;font-size:.9375rem;font-family:var(--font-sans);font-weight:700;margin-bottom:16px;}
.site-footer p{font-size:.875rem;line-height:1.85;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.6);}
.footer-brand .brand-mark{background:var(--accent);color:#062420;}
.footer-col li + li{margin-top:10px;}
.footer-col a{font-size:.875rem;position:relative;}
.footer-col a:hover{color:#fff;}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:100%;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform var(--t) var(--ease);
}
.footer-col a:hover::after{transform:scaleX(1);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;}
.footer-bottom .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8125rem;color:rgba(255,255,255,.55);}
/* ---------- float bar ---------- */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:var(--white);border-top:1px solid var(--line);box-shadow:var(--sh-2);
  transform:translateY(120%);transition:transform var(--t-slow) var(--ease);
}
.float-bar.is-show{transform:translateY(0);}
.float-bar.is-closed{display:none;}
.float-inner{display:flex;align-items:center;gap:16px;height:64px;}
.float-inner p{font-size:.875rem;color:var(--ink-500);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.float-inner .btn{height:44px;padding:0 20px;font-size:.875rem;flex:0 0 auto;}
.float-close{
  width:34px;height:34px;border-radius:var(--r-sm);color:var(--ink-500);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.float-close:hover{background:var(--sand-200);color:var(--ink-900);}
/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 24px;}
  .hero-grid{gap:40px;}
}
@media (max-width:1024px){
  .section{padding:76px 0;}
  .nav-menu{display:none;}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--white);
    color:var(--ink-700);margin-left:auto;
  }
  .nav-actions{margin-left:0;}
  .nav-cta{display:none;}
  .hero-grid{grid-template-columns:1fr;padding-top:56px;padding-bottom:72px;}
  .hero-visual > img{height:340px;}
  .check-card{position:static;width:100%;margin-top:20px;left:auto;bottom:auto;}
  .edge-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .news-feature{grid-template-columns:1fr;}
  .news-feature-media img{min-height:220px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px 0;}
  .stat:nth-child(3)::before{display:none;}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .drawer{
    display:block;position:fixed;top:0;right:0;bottom:0;z-index:90;
    width:min(86vw,360px);background:var(--white);box-shadow:var(--sh-3);
    transform:translateX(100%);transition:transform var(--t-slow) var(--ease);
    overflow-y:auto;padding:28px 24px 40px;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
  .drawer-head strong{font-family:var(--font-serif);font-size:1.0625rem;color:var(--ink-900);}
  .drawer-nav a{
    display:block;padding:16px 0;border-bottom:1px solid var(--line);
    font-size:1.0625rem;font-weight:500;color:var(--ink-900);
  }
  .drawer-nav a.is-active{color:var(--primary);font-weight:700;}
  .drawer .btn{width:100%;margin-top:26px;}
}
@media (max-width:768px){
  body{font-size:15px;padding-bottom:72px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .section-head{margin-bottom:28px;}
  .hero-grid{padding-top:40px;padding-bottom:56px;}
  .hero-title{font-size:clamp(1.9rem,7vw,2.4rem);}
  .hero-visual > img{height:260px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{flex:1 1 auto;}
  .trust li{padding:0 10px;font-size:.75rem;}
  .news-grid{grid-template-columns:1fr;}
  .news-feature{grid-column:span 1;}
  .news-row{grid-template-columns:110px 1fr;gap:14px;}
  .quote-grid{grid-template-columns:1fr;}
  .quote:nth-child(2){margin-top:0;}
  .stats{grid-template-columns:1fr 1fr;padding:20px 0;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
  .logo-wall div{height:64px;font-size:.75rem;}
  .cta-band .container{padding-top:56px;padding-bottom:56px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;padding-top:8px;}
  .site-footer{padding-top:48px;}
  .topline{display:none;}
  .edge-card{padding:22px;}
  .float-bar{transform:translateY(0);}
  .float-inner{height:auto;padding:10px 0;gap:10px;}
  .float-inner p{font-size:.8125rem;}
}
@media (max-width:560px){
  .hero-visual > img{height:210px;}
  .news-row{grid-template-columns:1fr;}
  .news-row-media img{aspect-ratio:16/9;}
  .stats{grid-template-columns:1fr;}
  .stat + .stat::before{display:none;}
  .stat{border-top:1px solid var(--line);padding-top:18px;}
  .stat:first-child{border-top:none;padding-top:0;}
  .float-inner p{display:none;}
  .float-inner .btn{flex:1;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink-900:#101413;
  --ink-700:#2C3331;
  --ink-500:#5A625F;
  --primary:#0F3D38;
  --primary-hi:#155F57;
  --accent:#12B39B;
  --accent-weak:#DFF5F0;
  --sand-100:#F7F5F1;
  --sand-200:#EFEBE4;
  --line:#E2DDD4;
  --white:#FFFFFF;
  --ok:#1E9E6A;
  --warn:#C9831A;
  --err:#C24A3B;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,20,19,.05);
  --sh-2:0 10px 30px -12px rgba(16,20,19,.18);
  --sh-3:0 24px 60px -24px rgba(16,20,19,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --t-fast:160ms;
  --t-mid:240ms;
  --t-slow:320ms;
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--sand-100);
  padding-bottom:64px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--primary)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink-900);letter-spacing:-.01em;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-sm)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ============ 顶部公告条 ============ */
.topbar{background:var(--primary);color:rgba(255,255,255,.86);font-size:.8125rem;line-height:1.6}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px}
.topbar a{color:#fff;display:inline-flex;align-items:center;gap:8px}
.topbar a span.arrow{transition:transform var(--t-mid) var(--ease)}
.topbar a:hover span.arrow{transform:translateX(4px)}
.topbar .topbar-note{color:rgba(255,255,255,.66)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,241,.98);border-bottom:1px solid transparent;transition:background var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease)}
.site-header.is-scrolled{background:rgba(247,245,241,.96);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-sm);background:var(--primary);color:#fff;font-weight:700;font-size:.9375rem;letter-spacing:.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-family:var(--serif);font-size:1.0625rem;font-weight:700}
.brand-text em{font-style:normal;font-size:.75rem;letter-spacing:.14em;color:var(--ink-500)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;height:44px;padding:0 14px;color:var(--ink-700);font-size:.9375rem;font-weight:500;position:relative;transition:color var(--t-fast) var(--ease)}
.nav-link::after{content:"";position:absolute;left:50%;bottom:8px;width:0;height:2px;background:var(--accent);transform:translateX(-50%);transition:width var(--t-mid) var(--ease)}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{width:calc(100% - 28px)}
.nav-link.is-active{color:var(--ink-900);font-weight:700}
.nav-link.is-active::after{width:calc(100% - 28px)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);color:var(--ink-700);cursor:pointer;transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}
.icon-btn:hover{border-color:var(--accent);color:var(--primary)}
.icon-btn:active{transform:translateY(1px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:8px;border:1px solid transparent;font-size:.9375rem;font-weight:600;cursor:pointer;transition:background var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),transform var(--t-fast) var(--ease)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hi);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover .btn-arrow{transform:translateX(2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--accent);background:var(--accent-weak);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--accent-weak);color:var(--primary);box-shadow:var(--sh-2)}
.btn-arrow{transition:transform var(--t-mid) var(--ease)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.nav-cta{height:44px;padding:0 20px}
.hamburger{display:none}

/* Mega 面板 */
.mega{position:absolute;top:calc(100% + 10px);right:0;width:720px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:26px;display:grid;grid-template-columns:1fr 1fr 220px;gap:26px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid);z-index:70}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega h4{font-size:.75rem;letter-spacing:.14em;color:var(--ink-500);font-family:var(--sans);font-weight:700;margin-bottom:12px}
.mega-list{list-style:none;display:flex;flex-direction:column;gap:4px}
.mega-list a{display:flex;gap:10px;align-items:flex-start;padding:10px;border-radius:var(--r-md);color:var(--ink-700);transition:background var(--t-fast) var(--ease)}
.mega-list a:hover{background:var(--sand-100);color:var(--ink-900)}
.mega-list strong{display:block;font-weight:600;font-size:.9375rem;color:var(--ink-900)}
.mega-list span span{display:block;font-size:.8125rem;color:var(--ink-500);line-height:1.6}
.mi-ico{flex:0 0 28px;width:28px;height:28px;border-radius:var(--r-sm);background:var(--accent-weak);color:var(--primary);display:inline-flex;align-items:center;justify-content:center}
.mega-card{border-radius:var(--r-md);overflow:hidden;position:relative;background:var(--primary);color:#fff;display:flex;flex-direction:column;justify-content:flex-end;min-height:200px;padding:18px}
.mega-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.mega-card b,.mega-card small{position:relative;z-index:1}
.mega-card b{font-family:var(--serif);font-size:1.0625rem;display:block;margin-bottom:6px}
.mega-card small{font-size:.8125rem;color:rgba(255,255,255,.8);line-height:1.6}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(16,20,19,.42);opacity:0;visibility:hidden;transition:opacity var(--t-mid) var(--ease),visibility var(--t-mid);z-index:80}
.drawer{position:fixed;top:0;right:0;height:100%;width:86vw;max-width:380px;background:var(--sand-100);z-index:90;transform:translateX(100%);transition:transform var(--t-slow) var(--ease);padding:22px;overflow-y:auto}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-nav{list-style:none;display:flex;flex-direction:column;gap:2px}
.drawer-nav a{display:block;padding:14px 12px;font-size:1.0625rem;color:var(--ink-900);font-weight:600;border-radius:var(--r-md);border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--primary);background:var(--accent-weak)}
.drawer-sub{list-style:none;padding-left:12px}
.drawer-sub a{font-size:.9375rem;font-weight:400;color:var(--ink-500);border-bottom:1px dashed var(--line);padding:10px 12px}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0}
.crumbs{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-500)}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs li::after{content:"›";color:var(--line)}
.crumbs li:last-child::after{display:none}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--accent)}
.crumbs .crumb-current{color:var(--ink-900);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-wrap{padding:26px 0 76px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-main{min-width:0}
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:28px}
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--accent-weak);color:var(--primary);font-size:.75rem;font-weight:600;letter-spacing:.04em}
.article-head h1{font-size:clamp(1.75rem,3.2vw,2.6rem);line-height:1.35;margin:16px 0 18px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:.8125rem;color:var(--ink-500)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.author-chip{display:inline-flex;align-items:center;gap:10px}
.avatar{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;font-size:.8125rem;font-weight:700}
.author-chip b{color:var(--ink-900);font-weight:600;font-size:.875rem}
.author-chip cite{font-style:normal;color:var(--ink-500);font-size:.8125rem}
.cover-fig{margin:0 0 34px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--sand-200)}
.cover-fig img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-fig figcaption{font-size:.8125rem;color:var(--ink-500);padding:12px 16px;background:var(--white);border-top:1px solid var(--line)}

/* 正文排版 */
.article-body{max-width:800px;font-size:1.0625rem;line-height:1.95;color:var(--ink-700)}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:clamp(1.35rem,2.2vw,1.7rem);line-height:1.5;margin:2.2em 0 .85em;padding-left:14px;border-left:3px solid var(--accent)}
.article-body h3{font-size:1.1875rem;margin:1.8em 0 .6em}
.article-body h4{font-size:1.0625rem;margin:1.5em 0 .5em;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin:.4em 0}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--primary);font-family:var(--mono);font-weight:700}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--sand-200);border-left:4px solid var(--primary);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-900)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.6em 0;border:1px solid var(--line)}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body code{font-family:var(--mono);font-size:.9em;background:var(--sand-200);padding:2px 6px;border-radius:var(--r-sm);color:var(--primary)}
.article-body pre{background:#101413;color:#E8EDEA;padding:20px;border-radius:var(--r-md);overflow-x:auto;font-family:var(--mono);font-size:.875rem;line-height:1.75;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.9375rem;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body thead th{background:var(--sand-200);color:var(--ink-900);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(239,235,228,.5)}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}

/* 空态 */
.empty-state{padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--white);text-align:center}
.empty-state svg{color:var(--ink-500);margin:0 auto 16px}
.empty-state h3{font-size:1.1875rem;margin-bottom:8px}
.empty-state p{color:var(--ink-500);font-size:.9375rem;margin-bottom:20px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:44px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:.8125rem;color:var(--ink-500);letter-spacing:.06em}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--white);font-size:.8125rem;color:var(--ink-700);transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}
.tag:hover{border-color:var(--accent);color:var(--primary);background:var(--accent-weak)}

/* 文末操作 */
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.article-actions .btn{height:44px;padding:0 20px;font-size:.875rem}

/* 相关推荐 */
.related{padding:74px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem)}
.section-head p{font-size:.875rem;color:var(--ink-500);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rcard{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease)}
.rcard:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(18,179,155,.4)}
.rcard figure{margin:0;overflow:hidden}
.rcard img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t-slow) var(--ease)}
.rcard:hover img{transform:scale(1.03)}
.rcard-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{font-size:1.0625rem;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-body p{font-size:.875rem;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-body time{font-family:var(--mono);font-size:.75rem;color:var(--ink-500);letter-spacing:.04em;margin-top:auto}

/* 侧栏 */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.side-card h3{font-size:1rem;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.timeline{list-style:none;position:relative;padding-left:18px}
.timeline::before{content:"";position:absolute;left:4px;top:6px;bottom:6px;width:1px;background:var(--line)}
.timeline li{position:relative;padding-bottom:16px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-18px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--white);border:2px solid var(--accent)}
.timeline a{color:var(--ink-900);font-size:.9375rem;line-height:1.6;display:block}
.timeline a:hover{color:var(--accent)}
.timeline time{display:block;font-family:var(--mono);font-size:.75rem;color:var(--ink-500);margin-top:4px}
.side-cta{background:var(--primary);color:#fff;border:none}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.18)}
.side-cta p{font-size:.875rem;color:rgba(255,255,255,.76);margin-bottom:16px}

/* 底部 CTA */
.cta-block{background:var(--primary);color:#fff;padding:76px 0;margin-top:80px}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.15rem);max-width:640px}
.cta-inner p{color:rgba(255,255,255,.76);margin-top:12px;max-width:640px;font-size:.9375rem}

/* 页脚 */
.site-footer{background:var(--primary);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-brand strong{font-family:var(--serif);color:#fff;font-size:1.0625rem}
.footer-brand p{font-size:.875rem;line-height:1.8;margin-top:14px;color:rgba(255,255,255,.72);max-width:300px}
.site-footer h4{color:#fff;font-size:.875rem;letter-spacing:.08em;font-family:var(--sans);font-weight:700;margin-bottom:16px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:.875rem}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.8125rem;color:rgba(255,255,255,.6)}

/* 底部固定转化条 */
.fixed-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--white);border-top:1px solid var(--line);box-shadow:var(--sh-2);transform:translateY(110%);transition:transform var(--t-slow) var(--ease)}
.fixed-bar.is-visible{transform:translateY(0)}
.fixed-inner{display:flex;align-items:center;gap:16px;justify-content:space-between;min-height:64px;padding:10px 0}
.fixed-inner p{font-size:.875rem;color:var(--ink-700)}
.fixed-inner p b{color:var(--ink-900)}
.fixed-actions{display:flex;align-items:center;gap:10px}
.fixed-bar .btn{height:44px;padding:0 20px;font-size:.875rem}
.fixed-close{width:32px;height:32px;border-radius:var(--r-sm);border:1px solid var(--line);background:transparent;color:var(--ink-500);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.fixed-close:hover{color:var(--ink-900);border-color:var(--ink-500)}

@media (max-width:1279px){
  .mega{width:640px;grid-template-columns:1fr 1fr 200px}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .hamburger{display:inline-flex}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .sidebar{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{padding-bottom:72px;font-size:16px}
  .container{padding:0 16px}
  .topbar{display:none}
  .article-wrap{padding:18px 0 56px}
  .crumbs .crumb-current{max-width:180px}
  .related-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .cta-block{padding:56px 0;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .article-body{font-size:1rem;line-height:1.9}
  .fixed-inner p{font-size:.8125rem}
}
@media (max-width:559px){
  .brand-text em{display:none}
  .fixed-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0}
  .fixed-actions .btn{flex:1}
  .article-actions{flex-direction:column}
  .article-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink-900:#101413;--ink-700:#2C3331;--ink-500:#5A625F;
  --primary:#0F3D38;--accent:#12B39B;--accent-weak:#DFF5F0;
  --sand-100:#F7F5F1;--sand-200:#EFEBE4;--line:#E2DDD4;--white:#FFFFFF;
  --ok:#1E9E6A;--warn:#C9831A;--err:#C24A3B;
  --r-sm:6px;--r-md:10px;--r-lg:18px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(16,20,19,.05);
  --sh-2:0 10px 30px -12px rgba(16,20,19,.18);
  --sh-3:0 24px 60px -24px rgba(16,20,19,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,"Microsoft YaHei",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DIN Alternate",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.85;
  color:var(--ink-700);background:var(--sand-100);
  padding-bottom:80px;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink-900);margin:0;line-height:1.3;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,4.4vw,3.2rem);font-weight:700}
h2{font-size:clamp(1.6rem,2.6vw,2.25rem);font-weight:600}
h3{font-size:1.25rem;font-weight:600}
h4{font-size:1rem;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.micro{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;font-family:var(--font-mono)}

/* ---------- 顶部公告条 ---------- */
.topbar{background:var(--ink-900);color:rgba(255,255,255,.86);font-size:.8125rem}
.topbar-inner{display:flex;align-items:center;gap:10px;min-height:34px}
.topbar .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 0 3px rgba(18,179,155,.2)}
.topbar p{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:0}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;white-space:nowrap}
.topbar-link svg{transition:transform .24s var(--ease)}
.topbar-link:hover svg{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:70;background:rgba(247,245,241,.92);border-bottom:1px solid transparent;transition:border-color .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease)}
.site-header.is-scrolled{background:rgba(247,245,241,.96);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:var(--r-sm);background:var(--primary);color:#fff;font-family:var(--font-mono);font-size:.875rem;font-weight:700;letter-spacing:.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--font-serif);font-size:1.0625rem;color:var(--ink-900)}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--ink-500);letter-spacing:.06em}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-link{position:relative;display:block;padding:12px 14px;font-size:.9375rem;font-weight:500;color:var(--ink-700);transition:color .16s var(--ease)}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:6px;height:2px;background:var(--accent);border-radius:2px;transition:left .24s var(--ease),right .24s var(--ease)}
.nav-link:hover{color:var(--ink-900)}
.nav-item:hover>.nav-link::after,.nav-item:focus-within>.nav-link::after{left:14px;right:14px}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{left:14px;right:14px}
.mega{
  position:absolute;top:calc(100% + 10px);left:-60px;width:720px;max-width:calc(100vw - 40px);
  display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:22px;padding:22px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item:last-child .mega{left:auto;right:0}
.mega h4{font-size:.75rem;font-family:var(--font-mono);letter-spacing:.08em;color:var(--ink-500);margin-bottom:12px;text-transform:uppercase}
.mega-list li+li{margin-top:4px}
.mega-list a{display:flex;gap:10px;padding:8px;border-radius:var(--r-sm);transition:background .16s var(--ease)}
.mega-list a:hover{background:var(--sand-200)}
.mi-ico{flex:0 0 28px;height:28px;display:grid;place-items:center;border-radius:var(--r-sm);background:var(--accent-weak);color:var(--primary)}
.mega-list strong{display:block;font-size:.9375rem;font-weight:600;color:var(--ink-900)}
.mega-list span span{display:block;font-size:.8125rem;color:var(--ink-500);line-height:1.5}
.mega-time{display:block;font-size:.75rem;color:var(--ink-500);font-family:var(--font-mono)}
.mega-cta{display:flex;flex-direction:column;justify-content:flex-end;gap:10px;min-height:180px;padding:18px;border-radius:var(--r-md);color:#fff;background:linear-gradient(180deg,rgba(15,61,56,.25),rgba(15,61,56,.92)),url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat}
.mega-cta strong{font-family:var(--font-serif);font-size:1.0625rem}
.mega-cta small{font-size:.8125rem;color:rgba(255,255,255,.78);line-height:1.6}
.mega-cta span{font-size:.8125rem;font-weight:600;color:var(--accent)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{display:grid;place-items:center;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);color:var(--ink-700);transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease)}
.icon-btn:hover{border-color:var(--accent);color:var(--primary)}
.icon-btn:active{transform:translateY(1px)}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--white);position:relative}
.burger i,.burger i::before,.burger i::after{position:absolute;left:12px;width:20px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.burger i{top:21px}
.burger i::before{content:"";left:0;top:-6px}
.burger i::after{content:"";left:0;top:6px}
.burger.is-open i{background:transparent}
.burger.is-open i::before{transform:translateY(6px) rotate(45deg)}
.burger.is-open i::after{transform:translateY(-6px) rotate(-45deg)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:8px;font-size:.9375rem;font-weight:600;border:1px solid transparent;transition:transform .16s var(--ease),box-shadow .24s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);white-space:nowrap}
.btn svg{transition:transform .24s var(--ease)}
.btn:hover svg{transform:translateX(2px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#12504A;box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--accent);background:var(--accent-weak)}
.btn-light{background:#fff;color:var(--primary);border-color:#fff}
.btn-light:hover{background:var(--accent-weak);border-color:var(--accent-weak)}
.btn-sm{height:44px;padding:0 18px;font-size:.875rem}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45)}
.hero .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}

/* 抽屉 */
.drawer{position:fixed;top:0;right:0;z-index:120;width:min(86vw,360px);height:100%;background:var(--white);box-shadow:var(--sh-3);transform:translateX(102%);transition:transform .32s var(--ease);display:flex;flex-direction:column;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-family:var(--font-serif);font-size:1rem}
.drawer-nav{padding:12px 12px 24px}
.drawer-nav>li>a{display:block;padding:14px 12px;font-family:var(--font-serif);font-size:1.25rem;color:var(--ink-900);border-bottom:1px solid var(--line)}
.drawer-nav>li>a.is-active{color:var(--primary);box-shadow:inset 3px 0 0 var(--accent)}
.drawer-sub{padding:6px 12px 14px}
.drawer-sub a{display:block;padding:8px 0;font-size:.9375rem;color:var(--ink-500)}
.drawer-sub a:hover{color:var(--accent)}
.drawer-foot{padding:18px 20px 28px;margin-top:auto;border-top:1px solid var(--line)}
.scrim{position:fixed;inset:0;z-index:110;background:rgba(16,20,19,.45);opacity:0;visibility:hidden;transition:opacity .32s var(--ease),visibility .32s var(--ease)}
.scrim.is-open{opacity:1;visibility:visible}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--primary);color:#fff;padding:64px 0 72px}
.hero-bg{position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,61,56,.94) 0%,rgba(15,61,56,.82) 52%,rgba(16,20,19,.86) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;transform:scale(1.02)}
.hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:rgba(255,255,255,.72)}
.breadcrumb li+li::before{content:"›";margin-right:8px;color:rgba(255,255,255,.5)}
.breadcrumb a{color:rgba(255,255,255,.82);border-bottom:1px solid rgba(255,255,255,.3);padding-bottom:1px}
.breadcrumb a:hover{color:#fff;border-color:var(--accent)}
.hero-eyebrow{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;color:var(--accent);margin-bottom:14px;text-transform:uppercase}
.hero h1{color:#fff;max-width:22ch}
.hero h1 .u{position:relative;white-space:nowrap}
.hero h1 .u::after{content:"";position:absolute;left:0;right:0;bottom:.02em;height:6px;background:rgba(18,179,155,.45);border-radius:3px;z-index:-1}
.hero-lead{margin-top:18px;font-size:1.0625rem;color:rgba(255,255,255,.82);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}
.trust{display:flex;flex-wrap:wrap;gap:0;margin-top:30px}
.trust li{position:relative;padding:0 18px;font-size:.875rem;color:rgba(255,255,255,.78);border-left:1px solid rgba(255,255,255,.22)}
.trust li:first-child{padding-left:0;border-left:0}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--sand{background:var(--sand-200)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .eyebrow{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;color:var(--accent);margin-bottom:10px;text-transform:uppercase}
.section-sub{color:var(--ink-500);font-size:.9375rem;margin-top:10px;max-width:60ch}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:.9375rem;white-space:nowrap}
.text-link span{background-image:linear-gradient(var(--accent),var(--accent));background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;transition:background-size .24s var(--ease);padding-bottom:2px}
.text-link:hover span{background-size:100% 1px}

/* ---------- 入口卡片网格 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.entry-card{grid-column:span 4;display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(18,179,155,.4)}
.entry-card.is-feature{grid-column:span 6;padding:0;overflow:hidden}
.entry-card.is-feature .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--sand-200)}
.entry-card.is-feature .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.entry-card.is-feature:hover .card-media img{transform:scale(1.03)}
.entry-card.is-feature .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-ico{display:grid;place-items:center;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--primary);background:var(--sand-100);margin-bottom:14px}
.is-feature .card-ico{margin-bottom:0}
.card-title{font-size:1.0625rem;font-family:var(--font-serif);font-weight:600;color:var(--ink-900)}
.card-desc{font-size:.9375rem;color:var(--ink-500);margin-top:8px;flex:1 1 auto}
.is-feature .card-desc{margin-top:0}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:.875rem;font-weight:600;color:var(--primary)}
.card-link svg{transition:transform .24s var(--ease)}
.card-link:hover{color:var(--accent)}
.card-link:hover svg{transform:translateX(3px)}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:.75rem;font-weight:600;background:var(--accent-weak);color:var(--primary)}
.badge--mute{background:var(--sand-200);color:var(--ink-500)}

/* ---------- 核对要点 5+7 错落 ---------- */
.points{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.point-lead{grid-column:span 5;grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;padding:34px;border-radius:var(--r-lg);background:var(--primary);color:#fff;position:relative;overflow:hidden}
.point-lead::after{content:"";position:absolute;right:-60px;bottom:-80px;width:240px;height:240px;border-radius:50%;background:rgba(18,179,155,.16)}
.point-lead h3{color:#fff;font-size:1.5rem;position:relative}
.point-lead p{color:rgba(255,255,255,.78);margin-top:14px;font-size:.9375rem;position:relative}
.point-lead .num{font-size:4.5rem;color:rgba(255,255,255,.16);line-height:1;margin-bottom:20px}
.point-card{grid-column:span 7;display:flex;gap:20px;padding:26px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.point-card .num{font-size:2rem;color:var(--sand-200);line-height:1;flex:0 0 auto}
.point-card h4{margin-bottom:8px;font-size:1.0625rem}
.point-card p{font-size:.9375rem;color:var(--ink-500)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-media{aspect-ratio:3/2;overflow:hidden;background:var(--sand-200)}
.step-media img{width:100%;height:100%;object-fit:cover}
.step-body{padding:22px 24px 26px}
.step-num{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;color:var(--accent);margin-bottom:10px}
.step-body h3{font-size:1.0625rem;margin-bottom:8px}
.step-body p{font-size:.9375rem;color:var(--ink-500)}

/* ---------- 使用反馈 ---------- */
.quotes{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.quote{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1)}
.quote:nth-child(1){grid-column:span 7}
.quote:nth-child(2){grid-column:span 5;margin-top:34px}
.quote p{font-size:1rem;color:var(--ink-700)}
.quote .quote-foot{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;font-size:.875rem;font-weight:600;flex:0 0 auto}
.quote .quote-foot b{display:block;font-size:.9375rem;color:var(--ink-900)}
.quote .quote-foot cite{display:block;font-style:normal;font-size:.8125rem;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);transition:background .24s var(--ease)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:18px 12px 18px 0;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{font-size:1.0625rem;font-weight:600;color:var(--ink-900)}
.faq-mark{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--accent);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.faq-mark::before{left:0;top:9px;width:20px;height:2px}
.faq-mark::after{left:9px;top:0;width:2px;height:20px}
.faq-item[open] .faq-mark::after{transform:rotate(90deg);opacity:0}
.faq-item[open]{background:linear-gradient(90deg,var(--accent-weak) 0%,rgba(223,245,240,0) 70%)}
.faq-item[open] summary{padding-left:16px;box-shadow:inset 3px 0 0 var(--accent)}
.faq-body{padding:0 12px 22px 16px;max-width:76ch;color:var(--ink-700);font-size:.9375rem}

/* ---------- 扁平链接列 ---------- */
.linklist{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 32px;padding:26px 28px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--white)}
.linklist a{display:flex;align-items:center;gap:10px;padding:10px 0;font-size:.9375rem;color:var(--ink-700);border-bottom:1px solid var(--line)}
.linklist a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.linklist a:hover{color:var(--accent)}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--primary);color:#fff;border-radius:var(--r-lg);padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;left:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(18,179,155,.14)}
.cta-band>div{position:relative;max-width:60ch}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.78);margin-top:12px;font-size:.9375rem}
.cta-band .btn{position:relative}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:rgba(255,255,255,.72);margin-top:96px;padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand .brand-mark{background:rgba(255,255,255,.1)}
.foot-brand .brand-text strong{color:#fff}
.foot-brand .brand-text em{color:rgba(255,255,255,.6)}
.foot-brand p{margin-top:18px;font-size:.875rem;line-height:1.8;color:rgba(255,255,255,.7);max-width:34ch}
.foot-col h4{color:#fff;font-size:.9375rem;margin-bottom:16px}
.foot-col li+li{margin-top:10px}
.foot-col a{font-size:.875rem;color:rgba(255,255,255,.72)}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:.8125rem;color:rgba(255,255,255,.6)}

/* ---------- 固定转化条 ---------- */
.fixed-bar{position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--white);border-top:1px solid var(--line);box-shadow:var(--sh-2);transform:translateY(110%);opacity:0;transition:transform .32s var(--ease),opacity .32s var(--ease)}
.fixed-bar.is-visible{transform:translateY(0);opacity:1}
.fixed-bar.is-off{display:none}
.fixed-inner{display:flex;align-items:center;gap:16px;min-height:64px;padding-top:8px;padding-bottom:8px}
.fixed-inner p{flex:1 1 auto;font-size:.9375rem;color:var(--ink-700)}
.fixed-close{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-sm);color:var(--ink-500);font-size:1.25rem;line-height:1}
.fixed-close:hover{background:var(--sand-200);color:var(--ink-900)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .mega{width:640px;grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:1024px){
  .nav-menu{display:none}
  .burger{display:block}
  .nav-tools .btn-primary{display:none}
  .nav-inner{gap:16px}
  .section{padding:72px 0}
  .entry-card{grid-column:span 6}
  .entry-card.is-feature{grid-column:span 12}
  .point-lead{grid-column:span 12;grid-row:auto}
  .point-card{grid-column:span 12}
  .quote:nth-child(1),.quote:nth-child(2){grid-column:span 12;margin-top:0}
  .linklist{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px}
}
@media (max-width:768px){
  body{padding-bottom:76px}
  .container{padding:0 16px}
  .topbar{display:none}
  .hero{padding:44px 0 56px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .trust{gap:14px}
  .trust li{padding:0 0 0 14px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .entry-grid{gap:16px}
  .entry-card{grid-column:span 12;padding:20px}
  .steps{grid-template-columns:1fr;gap:18px}
  .step{display:grid;grid-template-columns:120px 1fr}
  .step-media{aspect-ratio:1/1;height:100%}
  .step-body{padding:18px}
  .linklist{grid-template-columns:1fr}
  .cta-band{padding:32px 20px;border-radius:var(--r-md)}
  .cta-band .btn{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .fixed-bar{transform:translateY(0);opacity:1}
  .fixed-close{display:none}
  .fixed-inner p{font-size:.875rem}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:560px){
  h1{font-size:clamp(1.75rem,7vw,2.2rem)}
  .brand-text em{display:none}
  .foot-grid{grid-template-columns:1fr}
  .quote{padding:20px}
  .point-lead{padding:26px}
  .point-card{flex-direction:column;gap:10px;padding:20px}
  .fixed-inner{gap:10px}
  .fixed-inner p{line-height:1.5}
  .fixed-inner .btn{height:44px;padding:0 16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --ink-900:#101413;
  --ink-700:#2C3331;
  --ink-500:#5A625F;
  --primary:#0F3D38;
  --primary-dark:#0B2E2A;
  --accent:#12B39B;
  --accent-weak:#DFF5F0;
  --sand-100:#F7F5F1;
  --sand-200:#EFEBE4;
  --line:#E2DDD4;
  --white:#FFFFFF;
  --ok:#1E9E6A;
  --warn:#C9831A;
  --err:#C24A3B;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,20,19,.05);
  --sh-2:0 10px 30px -12px rgba(16,20,19,.18);
  --sh-3:0 24px 60px -24px rgba(16,20,19,.28);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,"SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SF Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --t-fast:160ms;
  --t-mid:240ms;
  --t-slow:320ms;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0 0 72px;
  background:var(--sand-100);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration:none;}
a:hover{text-decoration:underline;text-underline-offset:3px;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;color:var(--ink-900);margin:0;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;letter-spacing:.08em;font-family:var(--font-mono);
  text-transform:uppercase;color:var(--ink-500);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}

/* ---------- 顶部公告条 ---------- */
.announce{
  background:var(--primary);
  color:rgba(255,255,255,.86);
  font-size:.8125rem;
}
.announce-inner{
  display:flex;align-items:center;justify-content:center;gap:10px;
  min-height:36px;padding:6px 24px;text-align:center;
}
.announce a{color:#fff;display:inline-flex;align-items:center;gap:6px;font-weight:600;}
.announce a:hover{text-decoration:none;}
.announce a svg{transition:transform var(--t-mid) var(--ease);}
.announce a:hover svg{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.96);
  border-bottom:1px solid transparent;
  transition:border-color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;border-radius:var(--r-md);
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:1rem;font-weight:700;letter-spacing:.02em;
  box-shadow:var(--sh-1);flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-family:var(--font-serif);font-size:1.0625rem;color:var(--ink-900);letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--ink-500);letter-spacing:.06em;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-item{position:relative;display:flex;align-items:center;height:72px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:6px 14px;font-size:.9375rem;font-weight:500;color:var(--ink-700);
  text-decoration:none;
}
.nav-link:hover{color:var(--ink-900);text-decoration:none;}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:14px;height:2px;
  background:var(--accent);border-radius:2px;
  transition:left var(--t-mid) var(--ease),right var(--t-mid) var(--ease);
}
.nav-link:hover::after,.nav-link.is-active::after{left:14px;right:14px;}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-md);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-700);border:1px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.icon-btn:hover{background:var(--sand-200);color:var(--ink-900);border-color:var(--line);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:8px;
  font-size:.9375rem;font-weight:600;line-height:1;
  border:1px solid transparent;text-decoration:none;
  transition:transform var(--t-mid) var(--ease),background var(--t-mid) var(--ease),
    border-color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),color var(--t-mid) var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn svg{transition:transform var(--t-mid) var(--ease);}
.btn:hover svg{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:#134A43;box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--accent);background:var(--accent-weak);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:#F1FBF8;box-shadow:var(--sh-2);}
.btn-sm{height:44px;padding:0 18px;font-size:.875rem;}
.btn-block{width:100%;}

/* Mega 面板 */
.mega{
  position:absolute;top:100%;left:50%;
  width:720px;padding:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  display:grid;grid-template-columns:1fr 1fr 208px;gap:24px;
  opacity:0;visibility:hidden;pointer-events:none;
  transform:translate(-50%,-6px);
  transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}
.mega h4{
  font-size:.75rem;letter-spacing:.08em;font-family:var(--font-mono);
  color:var(--ink-500);font-weight:600;margin-bottom:12px;text-transform:uppercase;
}
.mega-list li+li{margin-top:4px;}
.mega-list a{
  display:flex;gap:10px;align-items:flex-start;
  padding:8px 10px;border-radius:var(--r-sm);color:var(--ink-900);
  transition:background var(--t-fast) var(--ease);
}
.mega-list a:hover{background:var(--sand-200);text-decoration:none;}
.mega-list strong{display:block;font-size:.9375rem;font-weight:600;}
.mega-list em,.mega-list span span{display:block;font-size:.8125rem;font-style:normal;color:var(--ink-500);line-height:1.6;}
.mega-list time{display:block;font-family:var(--font-mono);font-size:.75rem;color:var(--ink-500);}
.mi-ico{
  width:30px;height:30px;flex:none;border-radius:var(--r-sm);
  background:var(--accent-weak);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.mega-card{
  position:relative;overflow:hidden;border-radius:var(--r-md);
  min-height:190px;display:flex;flex-direction:column;justify-content:flex-end;
  padding:16px;color:#fff;
  background:linear-gradient(180deg,rgba(15,61,56,.15),rgba(15,61,56,.86)),url("/assets/images/backpic/back-3.png") center/cover no-repeat;
}
.mega-card b{font-family:var(--font-serif);font-size:1.0625rem;position:relative;}
.mega-card span{font-size:.8125rem;color:rgba(255,255,255,.8);position:relative;}
.mega-card a{
  position:absolute;inset:0;z-index:2;color:transparent;font-size:0;
}
.mega-card:hover{text-decoration:none;}

/* 移动端抽屉 */
.nav-toggle-input{position:absolute;opacity:0;pointer-events:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);align-items:center;justify-content:center;
  color:var(--ink-900);background:#fff;
}
.nav-toggle:hover{border-color:var(--accent);background:var(--accent-weak);}
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(16,20,19,.42);
  opacity:0;visibility:hidden;
  transition:opacity var(--t-mid) var(--ease),visibility var(--t-mid);
}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:86vw;max-width:380px;
  background:var(--sand-100);border-left:1px solid var(--line);
  padding:20px 20px 40px;overflow-y:auto;
  transform:translateX(100%);
  transition:transform var(--t-slow) var(--ease);
  display:flex;flex-direction:column;gap:6px;
}
.nav-toggle-input:checked ~ .drawer{opacity:1;visibility:visible;}
.nav-toggle-input:checked ~ .drawer .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-head span{font-family:var(--font-serif);font-size:1.125rem;font-weight:700;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;background:#fff;
}
.drawer-nav a.drawer-link{
  display:block;padding:16px 4px;font-family:var(--font-serif);
  font-size:1.25rem;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.drawer-link.is-active{color:var(--primary);}
.drawer-nav a.drawer-link:hover{text-decoration:none;color:var(--primary);}
.drawer details{border-bottom:1px solid var(--line);}
.drawer summary{
  list-style:none;padding:14px 4px;font-size:1rem;font-weight:600;color:var(--ink-700);
  display:flex;align-items:center;justify-content:space-between;cursor:pointer;
}
.drawer summary::-webkit-details-marker{display:none;}
.drawer summary::after{content:"+";font-family:var(--font-mono);color:var(--accent);font-size:1.1rem;}
.drawer details[open] summary::after{content:"−";}
.drawer details ul{padding:0 4px 12px;}
.drawer details li+li{margin-top:2px;}
.drawer details a{display:block;padding:10px 0;color:var(--ink-700);font-size:.9375rem;}
.drawer-cta{margin-top:18px;}

/* ---------- 内页头部 ---------- */
.sub-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(102deg,rgba(9,36,33,.94) 0%,rgba(15,61,56,.86) 52%,rgba(15,61,56,.62) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color:#fff;
  padding:72px 0 64px;
}
.sub-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
.sub-hero .container{position:relative;z-index:2;}
.breadcrumb{margin-bottom:22px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:rgba(255,255,255,.7);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"›";color:rgba(255,255,255,.45);}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb [aria-current]{color:#fff;font-weight:600;}
.sub-hero h1{
  color:#fff;font-size:clamp(2rem,4vw,3rem);max-width:920px;
  margin-bottom:18px;
}
.sub-hero h1 .mark{
  position:relative;white-space:nowrap;
}
.sub-hero h1 .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:6px;
  background:var(--accent);opacity:.42;border-radius:3px;
}
.sub-hero .lede{
  max-width:660px;font-size:1.0625rem;line-height:1.9;
  color:rgba(255,255,255,.82);
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:32px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.16);
}
.hero-facts div{display:flex;flex-direction:column;gap:2px;}
.hero-facts b{font-family:var(--font-mono);font-size:1.25rem;color:#fff;letter-spacing:.01em;}
.hero-facts span{font-size:.8125rem;color:rgba(255,255,255,.66);}

/* ---------- 主体两栏 ---------- */
.guide-section{padding:88px 0 40px;}
.guide-wrap{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;
  align-items:start;
}
.toc{
  position:sticky;top:104px;
  border-left:2px solid var(--line);
  padding-left:0;
}
.toc-title{
  font-size:.75rem;letter-spacing:.08em;font-family:var(--font-mono);
  color:var(--ink-500);text-transform:uppercase;margin-bottom:12px;padding-left:16px;
}
.toc-list li a{
  display:block;padding:10px 16px;font-size:.9375rem;color:var(--ink-500);
  border-left:2px solid transparent;margin-left:-2px;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.toc-list li a:hover{color:var(--ink-900);background:var(--sand-200);text-decoration:none;}
.toc-list li a.is-current{
  color:var(--primary);font-weight:600;
  border-left-color:var(--accent);background:var(--accent-weak);
}
.toc-note{
  margin:22px 0 0 16px;padding:14px 16px;border-radius:var(--r-md);
  background:var(--sand-200);border:1px solid var(--line);
  font-size:.8125rem;color:var(--ink-500);line-height:1.75;
}
.guide-body{display:flex;flex-direction:column;gap:56px;max-width:820px;}
.g-block{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);scroll-margin-top:104px;
}
.g-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:18px;}
.g-num{
  font-family:var(--font-mono);font-size:1.75rem;font-weight:700;line-height:1;
  color:var(--sand-200);-webkit-text-stroke:1px var(--ink-500);
  flex:none;padding-top:4px;
}
.g-head h2{font-size:clamp(1.375rem,2.2vw,1.75rem);}
.g-head p{font-size:.875rem;color:var(--ink-500);margin-top:6px;}
.g-block > p{color:var(--ink-700);}
.g-block > p+p{margin-top:1.1em;}
.g-block h3{
  font-size:1rem;font-weight:600;font-family:var(--font-sans);
  margin:26px 0 10px;color:var(--ink-900);
  display:flex;align-items:center;gap:10px;
}
.g-block h3::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--accent);}
.check{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:8px;}
.check li{display:flex;gap:12px;align-items:flex-start;font-size:.9375rem;color:var(--ink-700);}
.check .dot{
  width:22px;height:22px;flex:none;border-radius:var(--r-sm);
  background:var(--accent-weak);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:.75rem;font-weight:700;margin-top:4px;
}
.step-list{counter-reset:st;display:flex;flex-direction:column;gap:0;margin-top:10px;}
.step-list li{
  counter-increment:st;position:relative;
  padding:16px 0 16px 54px;border-bottom:1px solid var(--line);
  font-size:.9375rem;color:var(--ink-700);
}
.step-list li:last-child{border-bottom:none;}
.step-list li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:14px;
  font-family:var(--font-mono);font-size:.8125rem;font-weight:700;
  width:34px;height:34px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--sand-200);color:var(--primary);
}
.step-list b{display:block;color:var(--ink-900);font-weight:600;}
.note{
  margin-top:22px;padding:16px 20px;
  background:var(--accent-weak);border-left:3px solid var(--accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:.9375rem;color:var(--ink-700);
}
.note strong{color:var(--primary);}
.figure{margin:24px 0 4px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);}
.figure img{width:100%;height:260px;object-fit:cover;}
.figure figcaption{font-size:.8125rem;color:var(--ink-500);padding:10px 14px;background:var(--sand-200);}
.compare{display:flex;flex-direction:column;gap:0;margin-top:12px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;}
.compare-row{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;
  padding:14px 18px;font-size:.9375rem;background:#fff;
}
.compare-row+.compare-row{border-top:1px solid var(--line);}
.compare-row:nth-child(odd){background:var(--sand-200);}
.compare-row dt{font-weight:600;color:var(--ink-900);font-family:var(--font-mono);font-size:.875rem;}
.compare-row dd{margin:0;color:var(--ink-700);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:64px;background:var(--primary);color:#fff;
  border-radius:var(--r-lg);padding:52px 40px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(18,179,155,.35),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2rem);max-width:620px;}
.cta-band p{color:rgba(255,255,255,.78);max-width:620px;margin-top:14px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2;}
.linkrow{
  margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 28px;font-size:.9375rem;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--primary);color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.foot-brand{display:flex;flex-direction:column;gap:14px;max-width:320px;}
.foot-brand .brand-text strong{color:#fff;}
.foot-brand .brand-text em{color:rgba(255,255,255,.6);}
.foot-brand .brand-mark{background:var(--accent);color:#08211E;}
.foot-brand p{font-size:.875rem;line-height:1.8;color:rgba(255,255,255,.68);}
.foot-col h4{color:#fff;font-size:.9375rem;font-family:var(--font-sans);font-weight:600;margin-bottom:16px;}
.foot-col li+li{margin-top:10px;}
.foot-col a{color:rgba(255,255,255,.72);font-size:.9375rem;}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 20px;
  justify-content:space-between;font-size:.8125rem;color:rgba(255,255,255,.56);
}
.foot-bottom span{font-family:var(--font-mono);letter-spacing:.02em;}

/* ---------- 固定转化条 ---------- */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);box-shadow:var(--sh-2);
  transform:translateY(110%);opacity:0;
  transition:transform var(--t-slow) var(--ease),opacity var(--t-slow) var(--ease);
}
.float-bar.is-visible{transform:translateY(0);opacity:1;}
.float-bar.is-dismissed{display:none;}
.float-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:8px 24px;
}
.float-inner p{font-size:.875rem;color:var(--ink-700);}
.float-inner p b{color:var(--primary);}
.float-actions{display:flex;align-items:center;gap:10px;}
.float-close{
  width:44px;height:44px;border-radius:var(--r-md);color:var(--ink-500);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.float-close:hover{background:var(--sand-200);color:var(--ink-900);border-color:var(--line);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .mega{left:auto;right:0;transform:translateY(-6px);}
  .nav-item:hover .mega,.nav-item:focus-within .mega{transform:translateY(0);}
}
@media (max-width:1024px){
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .guide-wrap{grid-template-columns:minmax(0,1fr);gap:28px;}
  .toc{
    position:sticky;top:72px;z-index:30;
    border-left:none;border-bottom:1px solid var(--line);
    background:var(--sand-100);padding:10px 0 6px;margin:0 -24px;padding-left:24px;padding-right:24px;
  }
  .toc-title{display:none;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;}
  .toc-list::-webkit-scrollbar{display:none;}
  .toc-list li a{
    white-space:nowrap;border-left:none;border-bottom:2px solid transparent;
    margin-left:0;padding:8px 12px;border-radius:var(--r-sm);background:#fff;border:1px solid var(--line);
  }
  .toc-list li a.is-current{border-color:var(--accent);background:var(--accent-weak);}
  .toc-note{display:none;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{padding-bottom:76px;}
  .container{padding:0 16px;}
  .announce{display:none;}
  .sub-hero{padding:48px 0 44px;}
  .guide-section{padding:56px 0 24px;}
  .g-block{padding:24px 20px;border-radius:var(--r-md);}
  .g-head{gap:12px;}
  .guide-body{gap:40px;}
  .compare-row{grid-template-columns:1fr;gap:6px;}
  .cta-band{padding:36px 24px;margin-top:44px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .float-inner{padding:8px 16px;}
  .float-inner p{font-size:.8125rem;line-height:1.5;}
  .figure img{height:200px;}
}
@media (max-width:560px){
  .brand-text em{display:none;}
  .hero-facts{gap:12px 20px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .float-bar{box-shadow:var(--sh-3);}
  .float-inner{flex-wrap:wrap;justify-content:center;text-align:center;padding:10px 16px;}
  .float-actions{width:100%;justify-content:center;}
  .float-actions .btn{flex:1;}
  .float-close{position:absolute;top:6px;right:8px;}
  .float-inner{position:relative;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink-900:#101413;
  --ink-700:#2C3331;
  --ink-500:#5A625F;
  --primary:#0F3D38;
  --accent:#12B39B;
  --accent-weak:#DFF5F0;
  --sand-100:#F7F5F1;
  --sand-200:#EFEBE4;
  --line:#E2DDD4;
  --white:#FFFFFF;
  --ok:#1E9E6A;
  --warn:#C9831A;
  --err:#C24A3B;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,20,19,.05);
  --sh-2:0 10px 30px -12px rgba(16,20,19,.18);
  --sh-3:0 24px 60px -24px rgba(16,20,19,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--sand-100);
  padding-bottom:64px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;text-underline-offset:3px;transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease)}
a:hover{text-decoration:underline}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-family:var(--serif);font-weight:700;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-sm)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border:1px solid transparent;border-radius:8px;
  font-weight:500;font-size:.9375rem;letter-spacing:.01em;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .24s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;cursor:not-allowed}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#14524B;color:#fff;text-decoration:none;box-shadow:var(--sh-2)}
.btn-primary .arw{transition:transform .24s var(--ease)}
.btn-primary:hover .arw{transform:translateX(2px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--accent);background:var(--accent-weak);color:var(--ink-900);text-decoration:none}
.btn-light{background:#fff;color:var(--primary);border-color:transparent}
.btn-light:hover{background:var(--accent-weak);color:var(--primary);text-decoration:none;box-shadow:var(--sh-2)}
.btn-sm{min-height:40px;padding:0 18px;font-size:.875rem}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--accent);position:relative}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent);transition:width .24s var(--ease)}
.link-arrow:hover{text-decoration:none}
.link-arrow:hover::after{width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.96);
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),background-color .24s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{border-bottom:1px solid var(--line);background:rgba(247,245,241,.96);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink-900);flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:42px;height:42px;border-radius:var(--r-sm);background:var(--primary);color:#fff;
  display:grid;place-items:center;font-family:var(--mono);font-size:.9375rem;font-weight:700;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-family:var(--serif);font-size:1.0625rem;font-weight:700;color:var(--ink-900)}
.brand-text em{font-style:normal;font-size:.6875rem;letter-spacing:.16em;color:var(--ink-500)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-item{position:relative}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 16px;
  color:var(--ink-700);font-size:.9375rem;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:20px;height:2px;background:var(--accent);
  transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-link:hover{color:var(--ink-900);text-decoration:none}
.nav-link:hover::after,.nav-item:focus-within .nav-link::after{left:16px;right:16px}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{left:16px;right:16px}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--ink-700);
  display:grid;place-items:center;cursor:pointer;transition:border-color .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease);
}
.icon-btn:hover{border-color:var(--accent);background:var(--accent-weak);color:var(--primary)}
.hamburger{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;cursor:pointer;place-items:center}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;margin:3px auto;transition:transform .24s var(--ease),opacity .16s var(--ease)}
.drawer-close{display:none}

/* Mega 面板 */
.mega{
  position:absolute;top:72px;right:-96px;width:720px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);padding:26px;display:grid;grid-template-columns:1fr 1fr 200px;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega h4{font-size:.75rem;letter-spacing:.08em;color:var(--ink-500);font-family:var(--sans);font-weight:700;margin-bottom:10px}
.mega-list li+li{margin-top:2px}
.mega-list a{
  display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:var(--r-sm);color:var(--ink-900);font-size:.875rem;
  transition:background-color .16s var(--ease);
}
.mega-list a:hover{background:var(--sand-100);text-decoration:none}
.mega-list a strong{display:block;font-weight:600;font-size:.875rem}
.mega-list a span span{display:block;color:var(--ink-500);font-size:.75rem;line-height:1.5}
.mi-ico{flex:0 0 auto;width:28px;height:28px;border-radius:var(--r-sm);background:var(--accent-weak);color:var(--primary);display:grid;place-items:center}
.mega-date{font-family:var(--mono);font-size:.6875rem;color:var(--ink-500);display:block;letter-spacing:.04em}
.mega-card{
  border-radius:var(--r-md);overflow:hidden;color:#fff;position:relative;min-height:190px;display:flex;flex-direction:column;justify-content:flex-end;
  padding:16px;background-image:linear-gradient(180deg,rgba(15,61,56,.15),rgba(15,61,56,.92)),url("/assets/images/coverpic/cover-7.webp");
  background-size:cover;background-position:center;
}
.mega-card strong{font-family:var(--serif);font-size:1rem;display:block;line-height:1.4}
.mega-card span{font-size:.75rem;color:rgba(255,255,255,.8);display:block;margin-top:4px}

/* ---------- 页面头部 ---------- */
.page-head{padding:52px 0 44px;background:var(--sand-100);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:60px 60px;opacity:.35;pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),rgba(0,0,0,0));
}
.page-head .container{position:relative}
.crumbs{font-size:.8125rem;color:var(--ink-500);margin-bottom:18px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"›";color:var(--ink-500)}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--accent)}
.head-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:start}
.head-tag{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent-weak);color:var(--primary);
  border-radius:var(--r-pill);padding:5px 14px;font-size:.75rem;letter-spacing:.08em;font-weight:700;margin-bottom:20px;
}
h1{font-size:clamp(2rem,4vw,2.9rem);margin-bottom:18px}
h1 .hl{position:relative;white-space:nowrap}
h1 .hl::after{
  content:"";position:absolute;left:-2px;right:-2px;bottom:4px;height:7px;background:var(--accent);opacity:.28;border-radius:4px;z-index:-1;
}
.lede{font-size:1.0625rem;color:var(--ink-500);max-width:56ch}
.head-figure{margin:6px 0 0}
.head-figure .ph{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:var(--sand-200)}
.head-figure img{width:100%;height:230px;object-fit:cover}
.head-figure figcaption{font-size:.75rem;color:var(--ink-500);margin-top:10px;letter-spacing:.02em}

/* 搜索框 */
.search-card{
  margin-top:34px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);
  display:grid;grid-template-columns:1fr auto;gap:16px;align-items:end;
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:.8125rem;color:var(--ink-500);font-weight:500}
.field input{
  height:48px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--sand-100);padding:0 16px;color:var(--ink-900);
  transition:border-color .16s var(--ease),box-shadow .24s var(--ease),background-color .16s var(--ease);
}
.field input::placeholder{color:#9AA29E}
.field input:focus{outline:none;background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}
.field input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(194,74,59,.12)}
.field .err-msg{display:none;font-size:.75rem;color:var(--err)}
.field.has-error .err-msg{display:block}
.search-hint{grid-column:1/-1;font-size:.8125rem;color:var(--ink-500);border-top:1px dashed var(--line);padding-top:14px}
.quick-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--sand-100);color:var(--ink-700);font-size:.8125rem;cursor:pointer;
  transition:border-color .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease);
}
.tag:hover{border-color:var(--accent);background:var(--accent-weak);color:var(--primary)}

/* 主题横条 */
.topic-bar{position:sticky;top:72px;z-index:40;background:rgba(247,245,241,.97);border-bottom:1px solid var(--line)}
.topic-bar ul{display:flex;gap:6px;overflow-x:auto;padding:10px 0;scrollbar-width:thin}
.topic-bar a{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;color:var(--ink-700);font-size:.875rem;
  padding:6px 14px;border-radius:var(--r-pill);border:1px solid transparent;
}
.topic-bar a:hover{background:#fff;border-color:var(--line);text-decoration:none;color:var(--primary)}
.topic-bar a b{font-family:var(--mono);font-size:.6875rem;color:var(--accent)}

/* ---------- FAQ 分组 ---------- */
.faq-wrap{padding:80px 0 88px}
.group{margin-bottom:72px}
.group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:flex-end;gap:18px;padding-bottom:16px;border-bottom:2px solid var(--ink-900);margin-bottom:6px}
.group-no{font-family:var(--mono);font-size:2rem;font-weight:700;color:transparent;-webkit-text-stroke:1px var(--ink-500);line-height:1;letter-spacing:.02em}
.group-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem)}
.group-head p{font-size:.875rem;color:var(--ink-500);margin-left:auto;max-width:34ch;text-align:right}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease),background-color .24s var(--ease)}
.faq-item>summary{
  display:flex;align-items:center;gap:18px;min-height:64px;padding:18px 12px 18px 8px;cursor:pointer;list-style:none;
}
.faq-item>summary::-webkit-details-marker{display:none}
.faq-item>summary h3{
  font-family:var(--sans);font-size:1.0625rem;font-weight:600;color:var(--ink-900);flex:1;line-height:1.55;
  transition:color .16s var(--ease);
}
.faq-item>summary:hover h3{color:var(--primary)}
.faq-item .idx{font-family:var(--mono);font-size:.75rem;color:var(--ink-500);letter-spacing:.06em;flex:0 0 40px}
.sign{position:relative;width:20px;height:20px;flex:0 0 auto}
.sign::before,.sign::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.sign::before{left:3px;right:3px;top:9px;height:2px}
.sign::after{top:3px;bottom:3px;left:9px;width:2px}
.faq-item[open] .sign::after{transform:scaleY(0);opacity:0}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--accent);background:rgba(223,245,240,.34)}
.answer{padding:0 12px 26px 60px;color:var(--ink-700);font-size:1rem}
.answer p+p{margin-top:12px}
.answer ul{margin-top:12px;display:grid;gap:8px}
.answer ul li{position:relative;padding-left:20px;font-size:.9375rem;color:var(--ink-700)}
.answer ul li::before{content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:2px;background:var(--accent)}
.answer a{font-weight:500}

/* 搜索空态 */
.empty-state{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:240px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);color:var(--ink-500);text-align:center;padding:32px;
}
.empty-state.is-open{display:flex}
.empty-state svg{color:var(--ink-500)}
mark{background:var(--accent-weak);color:var(--primary);border-radius:3px;padding:0 2px}

/* ---------- 底部 CTA ---------- */
.cta-block{
  position:relative;color:#fff;border-radius:var(--r-lg);overflow:hidden;padding:64px 56px;
  background-image:linear-gradient(120deg,rgba(15,61,56,.96),rgba(15,61,56,.86)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;box-shadow:var(--sh-3);
}
.cta-block h2{color:#fff;font-size:clamp(1.6rem,2.8vw,2.3rem);max-width:24ch;margin-bottom:14px}
.cta-block p{color:rgba(255,255,255,.76);max-width:52ch;margin-bottom:30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-links{display:flex;flex-wrap:wrap;gap:24px;margin-top:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.cta-links a{color:rgba(255,255,255,.86);font-size:.875rem;border-bottom:1px solid rgba(255,255,255,.28)}
.cta-links a:hover{color:#fff;text-decoration:none;border-color:#fff}
.cta-section{padding:0 0 96px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:rgba(255,255,255,.72);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.site-footer h4{color:#fff;font-family:var(--sans);font-size:.8125rem;letter-spacing:.1em;font-weight:700;margin-bottom:18px}
.site-footer p{font-size:.875rem;line-height:1.9}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.foot-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.foot-brand strong{font-family:var(--serif);font-size:1.0625rem;color:#fff;display:block}
.foot-brand em{font-style:normal;font-size:.6875rem;letter-spacing:.16em;color:rgba(255,255,255,.6);display:block}
.site-footer li+li{margin-top:10px}
.site-footer a{color:rgba(255,255,255,.72);font-size:.875rem}
.site-footer a:hover{color:#fff;text-decoration:underline}
.foot-contact{display:grid;gap:10px;font-size:.875rem}
.foot-contact span{display:flex;gap:8px;align-items:center}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:.8125rem;color:rgba(255,255,255,.58);
}
.foot-bottom .mono{font-family:var(--mono);letter-spacing:.04em}

/* ---------- 底部固定条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);
  box-shadow:var(--sh-2);transform:translateY(110%);transition:transform .32s var(--ease);
}
.sticky-bar.is-visible{transform:translateY(0)}
.sticky-inner{display:flex;align-items:center;gap:16px;height:64px}
.sticky-inner p{font-size:.875rem;color:var(--ink-700);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sticky-bar .close{
  width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;cursor:pointer;
  display:grid;place-items:center;color:var(--ink-500);flex:0 0 auto;
}
.sticky-bar .close:hover{border-color:var(--accent);color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:420px;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;margin:0;padding:76px 20px 40px;box-shadow:var(--sh-3);z-index:90;
    transform:translateX(102%);transition:transform .32s var(--ease);overflow-y:auto;
  }
  body.drawer-open .nav-menu{transform:translateX(0)}
  body.drawer-open{overflow:hidden}
  .nav-item{border-bottom:1px solid var(--line)}
  .nav-link{height:auto;padding:18px 4px;font-size:1.125rem;font-weight:600;width:100%}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--primary)}
  .nav-link.is-active::before{content:"";width:4px;height:18px;background:var(--accent);border-radius:2px;margin-right:10px}
  .mega{position:static;width:auto;opacity:1;visibility:visible;transform:none;pointer-events:auto;box-shadow:none;border:none;border-radius:0;padding:0 0 18px;grid-template-columns:1fr;gap:18px;display:none}
  .nav-item:focus-within .mega,.nav-item:hover .mega{display:grid}
  .mega-card{min-height:150px}
  .hamburger{display:grid}
  .drawer-close{
    display:grid;place-items:center;position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:var(--r-sm);
    border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink-700);
  }
  .nav-inner{gap:14px}
  .head-grid{grid-template-columns:1fr;gap:32px}
  .head-figure img{height:260px}
  .topic-bar{top:72px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  body{padding-bottom:72px}
  .nav-actions .btn-sm{display:none}
  .page-head{padding:36px 0 34px}
  .search-card{grid-template-columns:1fr;padding:18px}
  .search-card .btn{width:100%}
  .faq-wrap{padding:56px 0 64px}
  .group{margin-bottom:56px}
  .group-head{flex-wrap:wrap;gap:10px}
  .group-head p{margin-left:0;text-align:left;max-width:none}
  .answer{padding-left:12px}
  .faq-item>summary{gap:12px;padding:16px 8px}
  .faq-item .idx{flex-basis:32px}
  .cta-block{padding:44px 24px}
  .cta-actions .btn{width:100%}
  .cta-links{gap:16px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sticky-inner{height:auto;padding:10px 0;flex-wrap:wrap;gap:10px}
  .sticky-inner p{white-space:normal;font-size:.8125rem;flex:1 1 100%}
  .sticky-inner .btn{flex:1}
  .sticky-bar{transform:translateY(0)}
}
@media (max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .brand-text em{letter-spacing:.1em}
  .head-figure img{height:200px}
  .group-no{font-size:1.5rem}
  .faq-item>summary h3{font-size:1rem}
  .foot-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}