/* roulang page: index */
:root{
  --bg-0:#060A16;
  --bg-1:#0A1226;
  --bg-2:#0E1730;
  --brand:#3D6BFF;
  --accent:#35E6C8;
  --nebula:#A46BFF;
  --text:#EAF0FF;
  --muted:#9AA9C6;
  --faint:#66748F;
  --glass:rgba(18,26,48,.62);
  --stroke:rgba(150,180,255,.16);
  --stroke-strong:rgba(150,180,255,.34);
  --ok:#35D07F;
  --warn:#FFB44D;
  --danger:#FF5C7A;
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 28px 60px -30px rgba(0,0,0,.8);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Space Grotesk",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 88% -6%,rgba(53,230,200,.10),transparent 68%),
    radial-gradient(820px 620px at -6% 6%,rgba(61,107,255,.16),transparent 70%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.3;}
h3{font-size:19px;line-height:1.45;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;color:var(--accent);
  margin-bottom:12px;font-family:var(--mono);
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);}
.lead{color:var(--muted);font-size:16px;line-height:1.85;max-width:760px;}
.link-more{color:var(--accent);font-size:14px;position:relative;display:inline-block;padding-bottom:2px;transition:color .2s;}
.link-more::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:width .28s;}
.link-more:hover::after{width:100%;}

/* 浮动导航 */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:90;display:flex;justify-content:center;padding:0 24px;pointer-events:none;}
.dock{
  pointer-events:auto;width:100%;max-width:1080px;
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 18px;
  border-radius:999px;
  background:rgba(10,18,38,.74);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--stroke);
  box-shadow:0 24px 60px -34px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.07);
  transition:padding .3s ease,background .3s ease;
}
.dock.is-scrolled{padding:6px 12px 6px 18px;background:rgba(8,14,30,.9);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand svg{width:28px;height:28px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:700;white-space:nowrap;}
.brand-sub{font-size:10px;color:var(--faint);letter-spacing:.06em;font-family:var(--mono);}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.dock-nav a{
  position:relative;font-size:15px;color:var(--muted);
  padding:8px 13px;border-radius:999px;
  transition:color .2s,background .2s;white-space:nowrap;
}
.dock-nav a:hover{color:var(--text);background:rgba(150,180,255,.08);}
.dock-nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .26s;
}
.dock-nav a.is-active{color:var(--text);}
.dock-nav a.is-active::after{transform:scaleX(1);}
.search-toggle,.dock-cta{flex-shrink:0;}
.search-toggle{
  width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--stroke);color:var(--muted);cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.search-toggle:hover{color:var(--text);border-color:rgba(53,230,200,.55);background:rgba(53,230,200,.08);}
.search-toggle svg{width:17px;height:17px;}
.dock-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border-radius:999px;font-size:14px;font-weight:600;color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 28px -12px rgba(53,230,200,.75);
  transition:transform .2s,box-shadow .24s;
}
.dock-cta:hover{transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(53,230,200,.9);}
.dock-search{
  display:flex;align-items:center;gap:8px;overflow:hidden;
  width:0;opacity:0;transition:width .32s ease,opacity .24s ease;
}
.dock-search.open{width:220px;opacity:1;}
.dock-search input{
  width:100%;height:38px;padding:0 16px;border-radius:999px;
  background:rgba(6,10,22,.7);border:1px solid var(--stroke);color:var(--text);
  font-size:14px;font-family:inherit;transition:border-color .2s,box-shadow .2s;
}
.dock-search input::placeholder{color:var(--faint);}
.dock-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,230,200,.14);}
.mobile-top{display:none;}

/* Hero */
.hero{position:relative;overflow:hidden;padding:154px 0 84px;isolation:isolate;}
.hero-bg{position:absolute;inset:0;z-index:-3;}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.04);}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,.42),rgba(6,10,22,.88) 62%,var(--bg-0) 100%);
}
.hero-stars{
  position:absolute;inset:0;z-index:-2;opacity:.18;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 14% 22%,#fff,transparent 62%),
    radial-gradient(1.4px 1.4px at 28% 64%,#fff,transparent 62%),
    radial-gradient(1.8px 1.8px at 46% 18%,#fff,transparent 62%),
    radial-gradient(1.3px 1.3px at 62% 52%,#fff,transparent 62%),
    radial-gradient(1.6px 1.6px at 74% 26%,#fff,transparent 62%),
    radial-gradient(1.4px 1.4px at 86% 70%,#fff,transparent 62%),
    radial-gradient(1.2px 1.2px at 36% 84%,#fff,transparent 62%),
    radial-gradient(1.5px 1.5px at 92% 40%,#fff,transparent 62%);
}
.hero-inner{max-width:800px;}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{
  background:linear-gradient(100deg,#35E6C8,#3D6BFF 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.85;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s,box-shadow .24s,background .24s,border-color .24s;
}
.btn svg{width:17px;height:17px;}
.btn-primary{background:linear-gradient(115deg,#35E6C8,#3D6BFF);color:#06121F;box-shadow:0 12px 32px -8px rgba(53,230,200,.55);}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-70%;width:38%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left .6s ease;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px -10px rgba(53,230,200,.72);}
.btn-primary:hover::after{left:130%;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(18,26,48,.55);border-color:var(--stroke);color:var(--text);}
.btn-ghost:hover{border-color:rgba(53,230,200,.6);background:rgba(53,230,200,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:52px;
  border-top:1px solid var(--stroke);padding-top:22px;
}
.stat{flex:1 1 0;min-width:150px;padding:0 24px;}
.stat:first-child{padding-left:0;}
.stat + .stat{border-left:1px solid var(--stroke);}
.stat-num{font-family:var(--mono);font-size:24px;font-weight:600;color:var(--text);letter-spacing:.02em;}
.stat-label{font-size:12px;color:var(--faint);letter-spacing:.04em;margin-top:2px;}

/* 主题封面 Bento */
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;}
.bento-item{
  position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:200px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--stroke);background:var(--bg-1);
  box-shadow:var(--shadow);
  transition:transform .26s cubic-bezier(.22,.61,.36,1),border-color .26s,box-shadow .26s;
}
.bento-item img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.04);transition:transform .45s ease;
}
.bento-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,.12),rgba(6,10,22,.92));
}
.bento-item:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.55);}
.bento-item:hover img{transform:scale(1.04);}
.bento-item:nth-child(1){grid-column:span 7;grid-row:span 2;min-height:432px;}
.bento-item:nth-child(2){grid-column:span 5;min-height:204px;}
.bento-item:nth-child(3){grid-column:span 5;min-height:204px;}
.bento-item:nth-child(4){grid-column:span 4;min-height:216px;}
.bento-item:nth-child(5){grid-column:span 8;min-height:216px;}
.idx{
  position:absolute;top:16px;left:16px;z-index:2;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  padding:3px 11px;border-radius:999px;color:#D9C6FF;
  border:1px solid rgba(164,107,255,.5);background:rgba(10,18,38,.62);
}
.bento-body{position:relative;z-index:2;padding:22px 24px;}
.bento-body h3{margin-bottom:6px;}
.bento-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.bento-count{display:inline-block;margin-top:12px;font-size:12px;color:var(--accent);font-family:var(--mono);}

/* 合集目录 */
.toc-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start;}
.toc-aside{position:sticky;top:110px;}
.toc-aside h3{font-size:16px;color:var(--muted);font-weight:600;}
.toc-aside p{font-size:14px;color:var(--faint);margin-top:8px;line-height:1.7;}
.toc-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;}
.toc-item{
  display:flex;align-items:center;gap:16px;padding:18px 4px;
  border-bottom:1px dashed rgba(150,180,255,.14);
  transition:background .2s,padding-left .2s;
}
.toc-item:hover{background:rgba(150,180,255,.05);padding-left:10px;}
.toc-num{font-family:var(--mono);font-size:22px;color:var(--nebula);min-width:42px;}
.toc-name{font-size:16px;color:var(--text);}
.toc-meta{font-size:12px;color:var(--faint);font-family:var(--mono);margin-left:8px;}
.toc-arrow{margin-left:auto;color:var(--faint);transition:transform .24s,color .24s;font-size:15px;}
.toc-item:hover .toc-arrow{transform:translateX(4px);color:var(--accent);}

/* 最新信息 */
.news-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,.9fr);gap:32px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-card{
  display:flex;gap:18px;padding:16px;
  border-radius:16px;border:1px solid var(--stroke);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .26s cubic-bezier(.22,.61,.36,1),border-color .26s,box-shadow .26s;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.5);box-shadow:0 24px 50px -28px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08);}
.news-thumb{
  width:112px;height:84px;flex-shrink:0;border-radius:12px;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--stroke);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.04);}
.news-main{min-width:0;display:flex;flex-direction:column;}
.news-main h3{
  font-size:17px;line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-main p{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:12px;font-size:12px;color:var(--faint);}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;color:#CFE3FF;
  background:rgba(61,107,255,.18);border:1px solid rgba(61,107,255,.35);
}
.news-foot time{font-family:var(--mono);}
.news-detail{margin-left:auto;color:var(--accent);font-size:13px;}
.rank-card{
  border-radius:var(--radius);border:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(18,26,48,.75),rgba(10,18,38,.5));
  padding:22px 20px;box-shadow:var(--shadow);
}
.rank-head{font-size:13px;color:var(--accent);letter-spacing:.04em;margin-bottom:14px;font-family:var(--mono);}
.rank-list li + li{border-top:1px dashed rgba(150,180,255,.14);}
.rank-list a{display:flex;gap:12px;align-items:flex-start;padding:14px 0;transition:color .2s;}
.rank-list a:hover{color:var(--accent);}
.rank-num{font-family:var(--mono);font-size:20px;color:var(--nebula);line-height:1.3;flex-shrink:0;}
.rank-title{font-size:14px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  display:flex;align-items:center;gap:16px;padding:30px 24px;
  border-radius:16px;border:1px dashed var(--stroke-strong);
  background:rgba(18,26,48,.45);color:var(--muted);font-size:15px;
}
.empty-state svg{width:26px;height:26px;color:var(--faint);flex-shrink:0;}

/* 相关推荐 */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;scrollbar-width:thin;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:rgba(150,180,255,.24);border-radius:999px;}
.rail-card{
  flex:0 0 288px;scroll-snap-align:start;
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--stroke);
  background:var(--bg-1);transition:transform .26s,border-color .26s;
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.5);}
.rail-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.rail-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.04);transition:transform .45s;}
.rail-card:hover .rail-media img{transform:scale(1.04);}
.rail-body{padding:18px 20px 22px;}
.rail-body h3{font-size:17px;margin-bottom:8px;}
.rail-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.rail-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.rail-more{
  flex:0 0 220px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:10px;
  padding:24px;border-radius:var(--radius);border:1px dashed var(--stroke-strong);
  color:var(--muted);transition:border-color .24s,color .24s,background .24s;
}
.rail-more:hover{border-color:rgba(53,230,200,.55);color:var(--text);background:rgba(53,230,200,.06);}
.rail-more span{font-size:13px;color:var(--accent);font-family:var(--mono);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border-radius:16px;border:1px solid var(--stroke);
  background:rgba(18,26,48,.55);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:border-color .24s,background .24s;
}
.faq-item[open]{border-color:rgba(53,230,200,.42);background:rgba(18,26,48,.8);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  margin-left:auto;width:22px;height:22px;flex-shrink:0;position:relative;
  transition:transform .28s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-plus::before{width:14px;height:2px;}
.faq-plus::after{width:2px;height:14px;}
.faq-item[open] .faq-plus{transform:rotate(45deg);}
.faq-answer{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:820px;}

/* CTA */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 38px;border-radius:24px;
  border:1px solid var(--stroke-strong);
  background:linear-gradient(120deg,rgba(53,230,200,.12),rgba(61,107,255,.16) 55%,rgba(164,107,255,.12));
  -webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px;}
.cta-bar p{font-size:14px;color:var(--muted);max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{border-top:1px solid var(--stroke);background:rgba(6,10,22,.7);padding:64px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:280px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:34px;height:34px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--stroke);color:var(--muted);
  transition:color .2s,border-color .2s,background .2s;
}
.footer-social a:hover{color:var(--accent);border-color:rgba(53,230,200,.5);background:rgba(53,230,200,.08);}
.footer-social svg{width:16px;height:16px;}
.footer-col h4{font-size:13px;color:var(--faint);letter-spacing:.04em;margin-bottom:14px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s;}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--stroke);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--faint);
}
.footer-bottom .mono{font-family:var(--mono);}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease,transform .42s ease;}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* 响应式 */
@media (max-width:1199px){
  .toc-layout{grid-template-columns:1fr;gap:24px;}
  .toc-aside{position:static;}
  .bento-item:nth-child(1){grid-column:span 12;grid-row:auto;min-height:340px;}
  .bento-item:nth-child(2),.bento-item:nth-child(3){grid-column:span 6;}
  .bento-item:nth-child(4),.bento-item:nth-child(5){grid-column:span 6;}
  .news-layout{grid-template-columns:1fr;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .dock-nav a{font-size:14px;padding:8px 10px;}
  .dock-nav a::after{left:10px;right:10px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .mobile-top{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;z-index:95;
    padding:10px 16px;background:rgba(8,14,30,.86);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--stroke);
  }
  .dock-wrap{top:auto;bottom:0;padding:0;}
  .dock{
    max-width:none;width:100%;border-radius:0;gap:0;
    padding:8px 6px calc(8px + env(safe-area-inset-bottom));
    border-left:0;border-right:0;border-bottom:0;
    background:rgba(8,14,30,.92);
  }
  .dock.is-scrolled{padding:8px 6px calc(8px + env(safe-area-inset-bottom));}
  .dock > .brand,.dock-cta,.search-toggle,.dock-search{display:none;}
  .dock-nav{width:100%;justify-content:space-between;gap:0;margin:0;}
  .dock-nav a{font-size:11px;padding:8px 6px;flex:1;text-align:center;}
  .dock-nav a::after{left:8px;right:8px;bottom:0;}
  .hero{padding:104px 0 56px;}
  .hero-sub{font-size:15px;}
  .hero-stats{margin-top:34px;padding-top:16px;}
  .stat{flex:1 1 50%;padding:10px 14px;min-width:0;}
  .stat:first-child{padding-left:14px;}
  .stat + .stat{border-left:0;}
  .stat:nth-child(2){border-left:1px solid var(--stroke);}
  .bento{grid-template-columns:1fr;gap:16px;}
  .bento-item:nth-child(n){grid-column:span 1;min-height:200px;}
  .bento-item:nth-child(1){min-height:260px;}
  .toc-grid{grid-template-columns:1fr;gap:0;}
  .news-card{flex-direction:row;gap:14px;padding:14px;}
  .news-thumb{width:88px;height:72px;}
  .news-main h3{font-size:16px;}
  .news-detail{display:none;}
  .cta-bar{padding:26px 22px;border-radius:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .site-footer{padding-bottom:78px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section{padding:56px 0;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  h1{font-size:28px;}
  .hero h1{font-size:27px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat-num{font-size:20px;}
  .news-thumb{width:72px;height:64px;}
  .rail-card{flex:0 0 82%;}
  .rail-more{flex:0 0 60%;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px;font-size:14px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A16;
  --bg-1:#0A1226;
  --brand:#3D6BFF;
  --accent:#35E6C8;
  --nebula:#A46BFF;
  --text:#EAF0FF;
  --muted:#9AA9C6;
  --faint:#66748F;
  --ok:#35D07F;
  --warn:#FFB44D;
  --err:#FF5C7A;
  --glass:rgba(18,26,48,.62);
  --glass-strong:rgba(10,18,38,.82);
  --stroke:rgba(150,180,255,.16);
  --stroke-soft:rgba(150,180,255,.10);
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 28px 60px -30px rgba(0,0,0,.8);
  --mono:ui-monospace,"SFMono-Regular","Space Grotesk",Menlo,Consolas,"Courier New",monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec:96px;
}
*,*::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(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -6%,rgba(53,230,200,.07),transparent 62%),
    radial-gradient(760px 480px at 2% 6%,rgba(164,107,255,.06),transparent 60%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
::selection{background:rgba(53,230,200,.28);color:#fff}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:768px){.wrap{padding:0 16px}}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  display:flex;justify-content:center;padding:0 16px;pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:1080px;
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:999px;
  border:1px solid var(--stroke);
  background:rgba(10,18,38,.74);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 24px 50px -28px rgba(0,0,0,.92),inset 0 1px 0 rgba(255,255,255,.07);
  transition:padding .3s ease,background .3s ease,box-shadow .3s ease;
}
.dock.is-scrolled{padding-top:6px;padding-bottom:6px;background:rgba(6,10,22,.9);box-shadow:0 18px 40px -24px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.06)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand svg{width:30px;height:30px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--faint);text-transform:uppercase}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.dock-nav a{
  position:relative;display:block;padding:6px 12px;border-radius:999px;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.dock-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
}
.dock-nav a:hover{color:var(--text);background:rgba(150,180,255,.08)}
.dock-nav a.is-active{color:var(--text);font-weight:600}
.dock-nav a.is-active::after{transform:scaleX(1)}
.dock-search{display:flex;align-items:center;flex-shrink:0;width:0;opacity:0;overflow:hidden;transition:width .3s ease,opacity .25s ease}
.dock.search-open .dock-search{width:200px;opacity:1}
.dock-search input{
  width:100%;height:38px;padding:0 14px;border-radius:999px;
  border:1px solid var(--stroke);background:rgba(6,10,22,.7);
  color:var(--text);font-size:14px;font-family:var(--sans);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.dock-search input::placeholder{color:var(--faint)}
.dock-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,230,200,.14)}
.search-toggle{
  display:grid;place-items:center;width:38px;height:38px;flex-shrink:0;
  border-radius:999px;border:1px solid var(--stroke);color:var(--muted);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.search-toggle svg{width:18px;height:18px}
.search-toggle:hover{color:var(--accent);border-color:rgba(53,230,200,.5);background:rgba(53,230,200,.08)}
.dock-cta{
  flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:999px;
  font-size:15px;font-weight:600;color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 28px -10px rgba(53,230,200,.55);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.dock-cta:hover{transform:translateY(-2px);box-shadow:0 18px 34px -10px rgba(53,230,200,.7)}
.dock-cta:active{transform:translateY(0)}

/* ---------- 分类页横幅 ---------- */
.cat-hero{
  position:relative;isolation:isolate;overflow:hidden;
  min-height:340px;display:flex;align-items:flex-end;
  padding:126px 0 54px;
  background-image:
    linear-gradient(180deg,rgba(6,10,22,.35),rgba(6,10,22,.94)),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--stroke-soft);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 26%,rgba(255,255,255,.16),transparent 100%),
    radial-gradient(1.5px 1.5px at 42% 62%,rgba(255,255,255,.12),transparent 100%),
    radial-gradient(1.5px 1.5px at 68% 18%,rgba(255,255,255,.15),transparent 100%),
    radial-gradient(1.5px 1.5px at 84% 54%,rgba(255,255,255,.1),transparent 100%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--faint)}
.crumbs a{color:var(--muted);transition:color .2s ease}
.crumbs a:hover{color:var(--accent)}
.crumbs [aria-current="page"]{color:var(--text)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:700;
  margin-bottom:18px;max-width:16em;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#35E6C8,#3D6BFF 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-lead{max-width:720px;font-size:16px;color:var(--muted);line-height:1.9}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--stroke);background:rgba(18,26,48,.55);
  font-size:12px;letter-spacing:.02em;color:var(--muted);
  backdrop-filter:blur(8px);
}
.pill b{font-family:var(--mono);font-size:13px;color:var(--accent);font-weight:600}
.pill.nebula b{color:var(--nebula)}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:84px;z-index:50;
  background:rgba(6,10,22,.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--stroke-soft);
}
.anchor-inner{display:flex;gap:6px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  position:relative;flex-shrink:0;padding:7px 16px;border-radius:999px;
  font-size:14px;color:var(--muted);white-space:nowrap;
  border:1px solid transparent;
  transition:color .22s ease,background .22s ease,border-color .22s ease;
}
.anchor-inner a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
}
.anchor-inner a:hover{color:var(--text);background:rgba(150,180,255,.07)}
.anchor-inner a.is-current{color:var(--text);border-color:var(--stroke);background:rgba(18,26,48,.6)}
.anchor-inner a.is-current::after{transform:scaleX(1)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section.tight{padding-top:64px}
.section-head{margin-bottom:36px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--nebula);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--nebula);opacity:.7}
.section-head h2{font-size:clamp(23px,2.8vw,34px);line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px}

/* ---------- 大条目卡（左图右文） ---------- */
.path-list{display:grid;gap:28px}
.path-card{
  display:grid;grid-template-columns:minmax(0,44%) minmax(0,1fr);
  gap:0;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--stroke);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .26s cubic-bezier(.22,.61,.36,1),border-color .26s ease,box-shadow .26s ease;
}
.path-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.4);box-shadow:0 34px 70px -34px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08)}
.path-card:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(0,44%)}
.path-card:nth-child(even) .path-media{order:2}
.path-media{position:relative;overflow:hidden;min-height:260px;background:var(--bg-1)}
.path-media img{width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(.92) contrast(1.04);transition:transform .5s cubic-bezier(.22,.61,.36,1)}
.path-card:hover .path-media img{transform:scale(1.04)}
.path-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,.1),rgba(6,10,22,.6));
}
.path-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--nebula);
  border:1px solid rgba(164,107,255,.5);background:rgba(6,10,22,.72);
  backdrop-filter:blur(8px);
}
.path-body{padding:32px 34px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.path-body h3{font-size:21px;line-height:1.45}
.path-body>p{color:var(--muted);font-size:15px;line-height:1.85}
.check-list{display:grid;gap:9px;margin-top:2px}
.check-list li{
  position:relative;padding-left:22px;font-size:14.5px;color:var(--muted);line-height:1.7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  border:1px solid rgba(53,230,200,.6);background:rgba(53,230,200,.16);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  font-size:14.5px;color:var(--accent);position:relative;padding-bottom:3px;
}
.link-arrow svg{width:16px;height:16px;transition:transform .24s ease}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--accent);transition:width .28s cubic-bezier(.22,.61,.36,1);
}
.link-arrow:hover::after{width:100%}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 编号检查列表 ---------- */
.steps-panel{
  border-radius:var(--radius);border:1px solid var(--stroke);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.step-row{
  display:grid;grid-template-columns:74px minmax(0,1fr) auto;
  align-items:start;gap:20px;
  padding:26px 30px;
  border-bottom:1px dashed rgba(150,180,255,.12);
  transition:background .24s ease;
}
.step-row:last-child{border-bottom:0}
.step-row:hover{background:rgba(53,230,200,.045)}
.step-num{
  font-family:var(--mono);font-size:26px;line-height:1;font-weight:600;
  color:var(--nebula);padding-top:4px;letter-spacing:.02em;
}
.step-main h3{font-size:19px;line-height:1.45;margin-bottom:8px}
.step-main p{color:var(--muted);font-size:15px;line-height:1.8}
.step-tag{
  flex-shrink:0;margin-top:2px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;color:var(--muted);
  border:1px solid var(--stroke);background:rgba(6,10,22,.5);
  white-space:nowrap;
}
.step-tag.accent{color:var(--accent);border-color:rgba(53,230,200,.4)}
.step-tag.warn{color:var(--warn);border-color:rgba(255,180,77,.36)}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px;border-radius:var(--radius-sm);
  border:1px solid var(--stroke);background:rgba(18,26,48,.5);
  backdrop-filter:blur(12px);
  transition:transform .26s cubic-bezier(.22,.61,.36,1),border-color .26s ease,background .26s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.42);background:rgba(18,26,48,.72)}
.rel-icon{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  color:var(--accent);border:1px solid rgba(53,230,200,.28);background:rgba(53,230,200,.08);
}
.rel-icon svg{width:20px;height:20px}
.rel-card h3{font-size:18px}
.rel-card p{font-size:14px;color:var(--muted);line-height:1.75}
.rel-card .link-arrow{margin-top:auto;font-size:14px}

/* ---------- 窄版 CTA ---------- */
.cta-narrow{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:30px 34px;border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:linear-gradient(115deg,rgba(53,230,200,.1),rgba(61,107,255,.1) 55%,rgba(164,107,255,.09));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.cta-narrow h3{font-size:20px;margin-bottom:6px}
.cta-narrow p{font-size:14px;color:var(--muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn svg{width:17px;height:17px}
.btn-primary{
  color:#06121F;background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 32px -8px rgba(53,230,200,.55);
  position:relative;overflow:hidden;
}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.42),transparent);
  transform:skewX(-18deg);transition:left .5s ease;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -8px rgba(53,230,200,.72)}
.btn-primary:hover::after{left:120%}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text);border:1px solid var(--stroke);background:rgba(18,26,48,.5);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(53,230,200,.55);background:rgba(53,230,200,.08)}
.btn-ghost:active{transform:translateY(1px)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;padding:70px 0 0;
  border-top:1px solid var(--stroke-soft);
  background:linear-gradient(180deg,rgba(10,18,38,.6),rgba(6,10,22,.96));
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:34ch}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  display:grid;place-items:center;width:36px;height:36px;border-radius:10px;
  border:1px solid var(--stroke);color:var(--muted);
  transition:color .22s ease,border-color .22s ease,background .22s ease,transform .22s ease;
}
.footer-social a svg{width:17px;height:17px}
.footer-social a:hover{color:var(--accent);border-color:rgba(53,230,200,.5);background:rgba(53,230,200,.08);transform:translateY(-2px)}
.footer-col h4{font-size:14px;letter-spacing:.04em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--muted);transition:color .22s ease}
.footer-col li a:hover{color:var(--accent)}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.85}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 30px;border-top:1px solid var(--stroke-soft);
  font-size:13px;color:var(--faint);
}
.footer-bottom .mono{font-family:var(--mono);letter-spacing:.02em}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease,transform .42s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .dock-nav a{padding:6px 10px;font-size:14px}
  .path-card,.path-card:nth-child(even){grid-template-columns:1fr}
  .path-card:nth-child(even) .path-media{order:0}
  .path-media{min-height:220px}
  .path-body{padding:26px 26px 30px}
}
@media (max-width:991px){
  :root{--sec:72px}
  .dock-search{display:none}
  .search-toggle{display:none}
  .dock-nav{margin-left:auto}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .step-row{grid-template-columns:56px minmax(0,1fr);gap:16px;padding:22px 24px}
  .step-tag{grid-column:2;justify-self:start;margin-top:10px}
}
@media (max-width:767px){
  body{padding-bottom:82px}
  .dock-wrap{top:auto;bottom:0;padding:0 10px calc(10px + env(safe-area-inset-bottom));}
  .dock{border-radius:22px;gap:10px;padding:8px 12px;overflow-x:auto;scrollbar-width:none}
  .dock::-webkit-scrollbar{display:none}
  .brand-sub{display:none}
  .brand-name{font-size:14px}
  .dock-nav{gap:0;margin-left:0}
  .dock-nav a{font-size:13.5px;padding:6px 9px}
  .dock-cta{height:34px;padding:0 14px;font-size:13.5px}
  .cat-hero{min-height:200px;padding:104px 0 38px}
  .cat-hero h1{font-size:clamp(24px,7vw,32px)}
  .cat-lead{font-size:15px}
  .anchor-bar{top:0}
  .section{padding:56px 0}
  .rel-grid{grid-template-columns:1fr}
  .path-body{padding:22px 20px 26px}
  .path-body h3{font-size:19px}
  .step-num{font-size:22px}
  .step-main h3{font-size:17px}
  .cta-narrow{padding:24px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .cat-hero{padding-top:96px}
  .hero-meta{gap:8px}
  .pill{font-size:11px;padding:5px 11px}
  .btn{width:100%}
  .cta-narrow{flex-direction:column;align-items:stretch}
  .step-row{padding:20px 18px;grid-template-columns:48px minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --bg-0:#060A16;
  --bg-1:#0A1226;
  --glass:rgba(18,26,48,.62);
  --glass-2:rgba(12,19,38,.80);
  --line:rgba(150,180,255,.16);
  --line-soft:rgba(150,180,255,.10);
  --brand:#3D6BFF;
  --accent:#35E6C8;
  --nebula:#A46BFF;
  --text:#EAF0FF;
  --muted:#9AA9C6;
  --faint:#66748F;
  --ok:#35D07F;
  --warn:#FFB44D;
  --err:#FF5C7A;
  --r-lg:18px;
  --r-sm:14px;
  --r-pill:999px;
  --shadow:0 28px 60px -30px rgba(0,0,0,.85);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(760px 460px at 84% -8%, rgba(53,230,200,.10), transparent 62%),
    radial-gradient(620px 420px at 4% 4%, rgba(164,107,255,.10), transparent 58%),
    linear-gradient(180deg,#060A16 0%,#080F1F 55%,#060A16 100%);
  background-repeat:no-repeat;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--accent);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#6ff2dc}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
[hidden]{display:none !important}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 顶部滚动进度条 ===== */
.progress-bar{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--accent),var(--brand));
  box-shadow:0 0 12px rgba(53,230,200,.75);
  transition:width .08s linear;
}

/* ===== 浮动 Dock 导航 ===== */
.dock-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:100;
  display:flex;justify-content:center;padding:0 16px;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  display:flex;align-items:center;gap:14px;
  width:100%;max-width:1080px;
  padding:10px 12px 10px 18px;
  border-radius:var(--r-pill);
  background:var(--glass-2);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 28px 60px -30px rgba(0,0,0,.95), inset 0 1px 0 rgba(255,255,255,.07);
  transition:padding .28s var(--ease), background .28s var(--ease), box-shadow .28s var(--ease);
}
.dock.is-scrolled{padding-top:6px;padding-bottom:6px;background:rgba(8,14,30,.92);box-shadow:0 22px 48px -26px rgba(0,0,0,.95), inset 0 1px 0 rgba(255,255,255,.06)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand svg{width:30px;height:30px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-family:var(--mono);font-size:9px;letter-spacing:.22em;color:var(--faint)}
.dock-nav{display:flex;align-items:center;gap:22px;margin-left:10px;flex:1 1 auto;min-width:0}
.dock-nav a{
  position:relative;font-size:15px;color:var(--muted);white-space:nowrap;
  padding:6px 0;transition:color .2s var(--ease);
}
.dock-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--brand));
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.dock-nav a:hover{color:var(--text)}
.dock-nav a:hover::after,.dock-nav a.is-active::after{transform:scaleX(1)}
.dock-nav a.is-active{color:var(--text);font-weight:600}
.dock-search{flex:0 1 210px;display:flex}
.dock-search input{
  width:100%;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text);
  background:rgba(8,14,30,.7);border:1px solid var(--line-soft);
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
}
.dock-search input::placeholder{color:var(--faint)}
.dock-search input:focus{
  outline:none;border-color:var(--accent);background:rgba(8,14,30,.95);
  box-shadow:0 0 0 3px rgba(53,230,200,.14);
}
.search-toggle{
  display:none;flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  align-items:center;justify-content:center;color:var(--muted);
  border:1px solid var(--line-soft);background:rgba(8,14,30,.6);
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.search-toggle:hover{color:var(--accent);border-color:var(--accent)}
.search-toggle svg{width:17px;height:17px}
.dock-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 28px -10px rgba(53,230,200,.6);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.dock-cta:hover{color:#06121F;transform:translateY(-2px);box-shadow:0 18px 36px -10px rgba(53,230,200,.78)}
.dock-cta:active{transform:translateY(0)}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}
.btn svg{width:17px;height:17px}
.btn-primary{
  position:relative;overflow:hidden;color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 32px -8px rgba(53,230,200,.55);
}
.btn-primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 25%,rgba(255,255,255,.45) 48%,transparent 70%);
  transform:translateX(-120%);transition:transform .6s var(--ease);
}
.btn-primary:hover{color:#06121F;transform:translateY(-2px);box-shadow:0 20px 42px -10px rgba(53,230,200,.78)}
.btn-primary:hover::after{transform:translateX(120%)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text);background:rgba(18,26,48,.55);border:1px solid var(--line);
}
.btn-ghost:hover{color:var(--text);border-color:var(--accent);background:rgba(53,230,200,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}

/* ===== 面包屑 ===== */
.crumbs{padding:118px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint)}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs li+li::before{content:"/";color:rgba(150,180,255,.34)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs li[aria-current]{
  color:var(--text);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ===== 文章布局 ===== */
.article-main-wrap{padding-top:26px}
.article-shell{
  display:grid;grid-template-columns:minmax(0,780px) 260px;
  gap:56px;justify-content:center;align-items:start;
}
.article-main{min-width:0}

/* 文章头 */
.article-head{padding-bottom:26px;border-bottom:1px dashed var(--line-soft)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;color:#C8B6FF;
  background:rgba(164,107,255,.14);border:1px solid rgba(164,107,255,.34);
}
.article-head h1{
  margin:16px 0 0;
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.24;
  letter-spacing:-.01em;
  font-weight:700;
  color:var(--text);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:18px;font-size:13px;color:var(--faint);
  font-family:var(--mono);
}
.meta-row time{color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(150,180,255,.35)}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-group button{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  color:var(--muted);border:1px solid var(--line-soft);background:rgba(18,26,48,.55);
  transition:color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}
.share-group button:hover{color:var(--accent);border-color:var(--accent);background:rgba(53,230,200,.08);transform:translateY(-2px)}
.share-group button:active{transform:translateY(0)}
.share-group svg{width:15px;height:15px}

/* 正文 */
.post-body{margin-top:34px;color:#D8E1F2;font-size:16px;line-height:1.88}
.post-body > :first-child{margin-top:0}
.post-body p{margin:0 0 18px}
.post-body h2{
  margin:44px 0 16px;padding-left:14px;
  font-size:clamp(21px,2.2vw,26px);line-height:1.36;font-weight:700;color:var(--text);
  letter-spacing:-.01em;border-left:3px solid var(--accent);
  scroll-margin-top:118px;
}
.post-body h3{
  margin:32px 0 12px;font-size:19px;line-height:1.5;font-weight:600;color:var(--text);
  scroll-margin-top:118px;
}
.post-body h4{margin:24px 0 10px;font-size:16px;font-weight:600;color:var(--muted)}
.post-body ul,.post-body ol{margin:0 0 18px;padding-left:4px}
.post-body ul li,.post-body ol li{
  position:relative;padding-left:20px;margin-bottom:9px;color:#CBD5E8;
}
.post-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:2px;
  background:linear-gradient(135deg,var(--accent),var(--brand));
}
.post-body ol{counter-reset:olnum}
.post-body ol li{counter-increment:olnum}
.post-body ol li::before{
  content:counter(olnum,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--mono);font-size:12px;color:var(--nebula);
}
.post-body a{color:var(--accent);border-bottom:1px solid rgba(53,230,200,.4)}
.post-body a:hover{border-bottom-color:var(--accent)}
.post-body strong{color:#FFFFFF;font-weight:600}
.post-body blockquote{
  margin:24px 0;padding:16px 20px;border-radius:var(--r-sm);
  background:rgba(164,107,255,.10);border-left:3px solid var(--nebula);
  color:#D6CBF2;
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{border-radius:var(--r-sm);margin:22px 0;border:1px solid var(--line-soft)}
.post-body figure{margin:22px 0}
.post-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px}
.post-body code{
  font-family:var(--mono);font-size:.9em;padding:2px 7px;border-radius:6px;
  background:rgba(53,230,200,.12);color:#8FF3E2;
}
.post-body pre{
  overflow-x:auto;padding:18px 20px;border-radius:var(--r-sm);margin:22px 0;
  background:rgba(6,10,22,.9);border:1px solid var(--line-soft);
}
.post-body pre code{padding:0;background:none;color:#BFD2F5}
.post-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;display:block;overflow-x:auto}
.post-body th,.post-body td{
  padding:10px 14px;border:1px solid var(--line-soft);text-align:left;white-space:nowrap;
}
.post-body th{background:rgba(61,107,255,.14);color:var(--text);font-weight:600}
.post-body hr{border:0;border-top:1px dashed var(--line-soft);margin:34px 0}

/* 空态 */
.empty-card{
  margin-top:34px;padding:46px 26px;text-align:center;
  border-radius:var(--r-lg);background:var(--glass);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.empty-card svg{width:44px;height:44px;color:var(--faint);margin:0 auto 14px}
.empty-card h2{font-size:20px;color:var(--text);margin-bottom:8px}
.empty-card p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:42px;padding-top:26px;border-top:1px dashed var(--line-soft)}
.tag-row .tag-label{font-size:13px;color:var(--faint);font-family:var(--mono);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--muted);background:rgba(18,26,48,.6);border:1px solid var(--line-soft);
  transition:color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.tag:hover{color:var(--accent);border-color:var(--accent);background:rgba(53,230,200,.08)}

/* 上下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;
  padding:20px 22px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .26s var(--ease), border-color .26s var(--ease), box-shadow .26s var(--ease);
}
.post-nav a:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.5);box-shadow:var(--shadow)}
.post-nav .pn-label{font-size:12px;font-family:var(--mono);letter-spacing:.08em;color:var(--nebula)}
.post-nav .pn-title{font-size:16px;font-weight:600;color:var(--text);line-height:1.5}
.post-nav .pn-desc{font-size:13px;color:var(--faint)}
.post-nav a:last-child{text-align:right;align-items:flex-end}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* 目录侧栏 */
.toc-box{position:sticky;top:112px;padding:20px 18px;border-radius:var(--r-lg);background:rgba(12,19,38,.6);border:1px solid var(--line-soft)}
.toc-title{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--faint);margin-bottom:12px}
.toc-box ul{display:flex;flex-direction:column;gap:2px}
.toc-box li a{
  display:block;padding:6px 10px;border-radius:8px;
  font-size:13px;line-height:1.5;color:var(--muted);
  border-left:2px solid transparent;
  transition:color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
  overflow:hidden;text-overflow:ellipsis;
}
.toc-box li a:hover{color:var(--text);background:rgba(61,107,255,.12)}
.toc-box li a.is-current{color:var(--accent);border-left-color:var(--accent);background:rgba(53,230,200,.08)}
.toc-box li.toc-sub a{padding-left:22px;font-size:12.5px;color:var(--faint)}
.toc-box li.toc-sub a.is-current{color:var(--accent)}

/* 相关推荐 */
.related{padding:76px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;letter-spacing:-.01em;color:var(--text)}
.section-head p{font-size:14px;color:var(--faint);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .26s var(--ease), border-color .26s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.5)}
.rel-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.04);transition:transform .4s var(--ease)}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:16.5px;line-height:1.5;font-weight:600;color:var(--text)}
.rel-card p{font-size:13.5px;color:var(--faint);line-height:1.7}
.rel-card .more{margin-top:auto;font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.04em}

/* ===== 页脚 ===== */
.site-footer{margin-top:96px;border-top:1px solid var(--line-soft);background:rgba(6,10,22,.72)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:44px;padding:64px 0 44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:50%;color:var(--muted);border:1px solid var(--line-soft);background:rgba(18,26,48,.5);
  transition:color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.footer-social a:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px)}
.footer-social svg{width:16px;height:16px}
.footer-col h4{font-size:13px;letter-spacing:.1em;font-family:var(--mono);color:var(--faint);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--muted)}
.footer-col li a:hover{color:var(--accent)}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.8}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 34px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--faint);font-family:var(--mono);
}
.footer-bottom a{color:var(--faint)}
.footer-bottom a:hover{color:var(--accent)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .article-shell{grid-template-columns:minmax(0,720px) 240px;gap:38px}
}
@media (max-width:1024px){
  .article-shell{grid-template-columns:minmax(0,1fr);gap:0}
  .toc-box{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .dock-search{display:none}
  .search-toggle{display:inline-flex}
  .dock-nav{gap:16px;overflow-x:auto;scrollbar-width:none}
  .dock-nav::-webkit-scrollbar{display:none}
  .dock{gap:10px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .wrap{padding:0 16px}
  .crumbs{padding-top:104px}
  .dock-wrap{top:10px;padding:0 10px}
  .dock{padding:8px 10px 8px 14px;gap:8px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .dock-nav a{font-size:14px}
  .dock-cta{height:36px;padding:0 14px;font-size:13px}
  .article-head h1{font-size:clamp(22px,5.4vw,28px)}
  .meta-row{font-size:12px}
  .share-group{margin-left:0;width:100%}
  .post-body{font-size:15.5px}
  .post-nav{grid-template-columns:1fr}
  .post-nav a:last-child{text-align:left;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 30px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
}
@media (max-width:520px){
  .dock-nav{gap:12px}
  .dock-cta{display:none}
  .article-head h1{font-size:21px}
  .post-body h2{font-size:19px;margin-top:34px}
  .post-body h3{font-size:17px}
  .tag{padding:5px 12px;font-size:12px}
  .section-head h2{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A16;
  --bg-1:#0A1226;
  --brand:#3D6BFF;
  --accent:#35E6C8;
  --nebula:#A46BFF;
  --text:#EAF0FF;
  --muted:#9AA9C6;
  --faint:#66748F;
  --line:rgba(150,180,255,.16);
  --line-strong:rgba(150,180,255,.28);
  --glass:rgba(18,26,48,.62);
  --glass-soft:rgba(18,26,48,.42);
  --paper:#0C1426;
  --ok:#35D07F;
  --warn:#FFB44D;
  --err:#FF5C7A;
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"Space Grotesk",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 28px 60px -30px rgba(0,0,0,.8);
  --shadow-soft:0 16px 40px -28px rgba(0,0,0,.72);
  --inset:inset 0 1px 0 rgba(255,255,255,.07);
  --sd:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 88% -6%, rgba(53,230,200,.07), transparent 68%),
    radial-gradient(560px 380px at 8% 12%, rgba(164,107,255,.06), transparent 70%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
p{margin:0 0 18px}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.3}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:var(--sd) 0;position:relative;z-index:1}
.section-head{max-width:720px;margin-bottom:28px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7}
.section-head h2{font-size:clamp(23px,2.8vw,34px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{
  position:sticky;top:0;z-index:80;
  display:flex;justify-content:center;
  padding:16px 24px 0;
}
.dock{
  width:100%;max-width:1080px;
  display:flex;align-items:center;gap:16px;
  padding:10px 14px 10px 18px;
  border-radius:999px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--inset);
  transition:padding .28s ease,background .28s ease;
}
.dock.is-scrolled{padding:6px 14px 6px 18px;background:rgba(10,18,38,.86)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand svg{width:30px;height:30px;flex:none}
.brand-text{display:block;line-height:1.15}
.brand-name{display:block;font-size:16px;font-weight:600;letter-spacing:-.01em}
.brand-sub{display:block;font-size:10px;letter-spacing:.16em;color:var(--faint);font-family:var(--mono)}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.dock-nav a{
  position:relative;font-size:15px;color:var(--muted);
  padding:8px 12px;border-radius:999px;
  transition:color .2s ease,background .2s ease;
}
.dock-nav a:hover{color:var(--text);background:rgba(53,230,200,.08)}
.dock-nav a.is-active{color:var(--text)}
.dock-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--accent);border-radius:2px;
}
.dock-search{display:none;align-items:center}
.dock-search.is-open{display:flex}
.dock-search input{
  height:40px;width:190px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(6,10,22,.7);color:var(--text);
  font-family:var(--sans);font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.dock-search input::placeholder{color:var(--faint)}
.dock-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,230,200,.16)}
.search-toggle{
  flex:none;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--muted);cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.search-toggle svg{width:19px;height:19px}
.search-toggle:hover{color:var(--accent);border-color:rgba(53,230,200,.5);background:rgba(53,230,200,.08)}
.dock-cta{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:999px;
  font-size:14px;font-weight:600;color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 32px -8px rgba(53,230,200,.55);
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s ease;
}
.dock-cta:hover{transform:translateY(-2px);box-shadow:0 18px 40px -10px rgba(53,230,200,.7)}
.dock-cta:active{transform:translateY(0)}

/* ---------- Hero 横幅 ---------- */
.hero-banner{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line)}
.hero-banner::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  filter:saturate(.9) contrast(1.03);
}
.hero-banner::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(2px 2px at 18% 28%, rgba(255,255,255,.5), transparent 60%),
    radial-gradient(2px 2px at 62% 18%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(1.6px 1.6px at 82% 46%, rgba(255,255,255,.4), transparent 60%),
    radial-gradient(1.6px 1.6px at 38% 68%, rgba(255,255,255,.28), transparent 60%),
    linear-gradient(180deg,rgba(6,10,22,.30),rgba(6,10,22,.94));
}
.hero-inner{padding:64px 24px 52px;max-width:1200px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:20px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:rgba(150,180,255,.34)}
.crumbs a{color:var(--muted);transition:color .2s ease}
.crumbs a:hover{color:var(--accent)}
.crumbs [aria-current]{color:var(--text)}
.hero-banner h1{font-size:clamp(28px,3.8vw,46px);line-height:1.2;max-width:16em}
.hero-lead{max-width:660px;margin:18px 0 0;color:var(--muted);font-size:16px;line-height:1.9}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;color:var(--muted);
  background:rgba(18,26,48,.6);border:1px solid var(--line);
}
.tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;flex:none}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:36px;border-top:1px solid var(--line);
}
.hero-stats div{padding:18px 20px 0;border-left:1px solid var(--line)}
.hero-stats div:first-child{border-left:none;padding-left:0}
.hero-stats b{display:block;font-family:var(--mono);font-size:22px;font-weight:600;color:var(--text);letter-spacing:0}
.hero-stats span{display:block;margin-top:4px;font-size:12px;color:var(--faint);letter-spacing:.02em}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:84px;z-index:60;
  background:rgba(10,18,38,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;gap:6px;overflow-x:auto;padding:0 24px;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  position:relative;flex:none;
  padding:16px 14px;font-size:14px;color:var(--muted);
  transition:color .2s ease;white-space:nowrap;
}
.anchor-inner a:hover{color:var(--text)}
.anchor-inner a.is-active{color:var(--text)}
.anchor-inner a.is-active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:0;height:2px;
  background:var(--accent);border-radius:2px 2px 0 0;
}

/* ---------- 时间线 ---------- */
.timeline{margin-top:36px;max-width:900px}
.tl-item{position:relative;padding:0 0 30px 68px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:23px;top:50px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(164,107,255,.45),rgba(53,230,200,.16));
}
.tl-item:last-child::before{display:none}
.tl-dot{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:15px;color:var(--nebula);
  background:rgba(18,26,48,.92);
  border:1px solid rgba(164,107,255,.45);
  box-shadow:var(--inset),0 0 0 6px rgba(6,10,22,.9);
}
.tl-card{
  padding:22px 26px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft),var(--inset);
  transition:border-color .26s ease,transform .26s cubic-bezier(.22,.61,.36,1);
}
.tl-card:hover{border-color:rgba(53,230,200,.4);transform:translateY(-3px)}
.tl-card h3{font-size:19px;line-height:1.45}
.tl-card p{margin:10px 0 0;color:var(--muted);font-size:15px;line-height:1.85}
.tl-note{
  display:flex;gap:10px;align-items:flex-start;
  margin-top:16px;padding:12px 14px;
  border-radius:var(--r-sm);
  background:rgba(53,230,200,.06);
  border:1px dashed rgba(53,230,200,.26);
  font-size:13.5px;color:#B9E9E0;line-height:1.75;
}
.tl-note b{color:var(--accent);font-weight:600;flex:none;font-size:13px;letter-spacing:.02em}

/* ---------- 能力要点 ---------- */
.ability-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:34px}
.ability-card{
  position:relative;
  padding:26px 26px 24px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(18,26,48,.74),rgba(12,20,38,.52));
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft),var(--inset);
  transition:border-color .26s ease,transform .26s cubic-bezier(.22,.61,.36,1);
}
.ability-card:hover{border-color:rgba(53,230,200,.42);transform:translateY(-4px)}
.ability-card::after{
  content:"";position:absolute;inset:6px;border-radius:calc(var(--r-lg) - 5px);
  border:1px solid rgba(150,180,255,.08);pointer-events:none;
}
.ability-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(61,107,255,.14);
  border:1px solid rgba(61,107,255,.35);
  color:var(--accent);margin-bottom:16px;
}
.ability-icon svg{width:22px;height:22px}
.ability-card h3{font-size:19px}
.ability-card p{margin:10px 0 0;color:var(--muted);font-size:14.5px;line-height:1.8}
.ability-meta{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(150,180,255,.16);
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--faint);
}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:34px}
.scene-card{
  display:grid;grid-template-columns:132px 1fr;gap:0;
  border-radius:var(--r-lg);overflow:hidden;
  background:var(--glass-soft);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft),var(--inset);
  transition:border-color .26s ease,transform .26s cubic-bezier(.22,.61,.36,1);
}
.scene-card:hover{border-color:rgba(53,230,200,.4);transform:translateY(-4px)}
.scene-thumb{position:relative;min-height:100%}
.scene-thumb img{width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(.92) contrast(1.04)}
.scene-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,10,22,.1),rgba(6,10,22,.62))}
.scene-body{padding:22px 22px 20px}
.scene-body h3{font-size:18px}
.scene-body p{margin:8px 0 0;color:var(--muted);font-size:14.5px;line-height:1.8}
.scene-list{margin-top:14px;display:grid;gap:6px}
.scene-list li{position:relative;padding-left:16px;font-size:13.5px;color:var(--faint);line-height:1.7}
.scene-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:1px;background:var(--accent);opacity:.8}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;margin-top:32px;max-width:900px}
.faq-item{
  border-radius:var(--r-md);
  background:var(--glass-soft);
  border:1px solid var(--line);
  box-shadow:var(--inset);
  transition:border-color .24s ease,background .24s ease;
}
.faq-item:hover{border-color:rgba(150,180,255,.3)}
.faq-item[open]{border-color:rgba(53,230,200,.4);background:rgba(18,26,48,.7)}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;cursor:pointer;
  font-size:15.5px;font-weight:500;color:var(--text);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;flex:none;
  width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:17px;line-height:1;
  color:var(--accent);border:1px solid rgba(53,230,200,.35);
  transition:transform .24s ease,background .24s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);background:rgba(53,230,200,.12)}
.faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.related-card{
  display:block;padding:22px;
  border-radius:var(--r-md);
  background:rgba(18,26,48,.5);
  border:1px solid var(--line);
  box-shadow:var(--inset);
  transition:border-color .24s ease,transform .24s cubic-bezier(.22,.61,.36,1),background .24s ease;
}
.related-card:hover{border-color:rgba(53,230,200,.42);transform:translateY(-4px);background:rgba(22,32,58,.66)}
.related-card .idx{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--nebula)}
.related-card h3{margin-top:10px;font-size:17px}
.related-card p{margin:8px 0 0;color:var(--faint);font-size:13.5px;line-height:1.75}
.related-card .go{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:13px;color:var(--accent);
}
.related-card .go svg{width:14px;height:14px;transition:transform .22s ease}
.related-card:hover .go svg{transform:translateX(4px)}

/* ---------- 窄版 CTA ---------- */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  margin-top:20px;padding:28px 30px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(61,107,255,.16),rgba(53,230,200,.09));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow),var(--inset);
}
.cta-strip h2{font-size:clamp(19px,2.2vw,24px)}
.cta-strip p{margin:8px 0 0;color:var(--muted);font-size:14.5px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 32px -8px rgba(53,230,200,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px -10px rgba(53,230,200,.72)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(53,230,200,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn svg{width:16px;height:16px}
.btn[disabled]{opacity:.45;box-shadow:none;pointer-events:none}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:var(--sd);
  padding:64px 0 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,38,.5),rgba(6,10,22,.96));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand p{margin:16px 0 0;color:var(--muted);font-size:14px;line-height:1.8;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  color:var(--muted);background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.footer-social a svg{width:17px;height:17px}
.footer-social a:hover{color:var(--accent);border-color:rgba(53,230,200,.45);background:rgba(53,230,200,.09)}
.footer-col h4{font-size:14px;letter-spacing:.02em;color:var(--text);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-col li a:hover{color:var(--accent)}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.8}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--faint);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sd:80px}
  .hero-stats b{font-size:20px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  :root{--sd:72px}
  .dock-nav a{font-size:14px;padding:8px 10px}
  .dock-nav a.is-active::after{left:10px;right:10px}
  .dock-cta{height:40px;padding:0 18px;font-size:13.5px}
  .ability-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr 1fr}
  .cta-strip{flex-direction:column;align-items:flex-start}
  .anchor-bar{top:76px}
}
@media (max-width:767px){
  :root{--sd:56px}
  body{padding-bottom:86px}
  .wrap{padding:0 16px}
  .dock-wrap{
    position:fixed;top:auto;bottom:0;left:0;right:0;
    padding:0 12px calc(12px + env(safe-area-inset-bottom));
    z-index:90;
  }
  .dock{
    border-radius:20px;padding:8px 10px;gap:8px;overflow:hidden;
    background:rgba(12,20,38,.92);
    box-shadow:0 -10px 40px -20px rgba(0,0,0,.9),var(--inset);
  }
  .brand-sub{display:none}
  .brand-name{font-size:14px}
  .brand svg{width:26px;height:26px}
  .dock-nav{
    margin-left:0;overflow-x:auto;scrollbar-width:none;flex:1;
    -webkit-overflow-scrolling:touch;
  }
  .dock-nav::-webkit-scrollbar{display:none}
  .dock-nav a{font-size:13.5px;padding:7px 9px;white-space:nowrap}
  .dock-nav a.is-active::after{left:8px;right:8px;bottom:0}
  .search-toggle,.dock-search{display:none !important}
  .dock-cta{height:36px;padding:0 14px;font-size:13px;border-radius:999px}
  .hero-inner{padding:44px 16px 40px}
  .hero-banner::before{background-image:url("/assets/images/backpic/back-1.png")}
  .hero-lead{font-size:15px;margin-top:14px}
  .hero-tags{gap:8px;margin-top:20px}
  .tag{font-size:11.5px;padding:5px 12px}
  .hero-stats{grid-template-columns:repeat(3,1fr);margin-top:26px}
  .hero-stats div{padding:14px 10px 0}
  .hero-stats b{font-size:16px}
  .hero-stats span{font-size:11px}
  .anchor-bar{top:0}
  .anchor-inner{padding:0 16px}
  .anchor-inner a{font-size:13.5px;padding:13px 11px}
  .timeline{margin-top:28px}
  .tl-item{padding-left:56px;padding-bottom:24px}
  .tl-dot{width:40px;height:40px;font-size:14px}
  .tl-item::before{left:19px;top:44px}
  .tl-card{padding:18px 18px 16px}
  .tl-card h3{font-size:17px}
  .tl-card p{font-size:14.5px}
  .scene-card{grid-template-columns:1fr}
  .scene-thumb{aspect-ratio:16/9;min-height:0}
  .scene-thumb::after{background:linear-gradient(180deg,rgba(6,10,22,.1),rgba(6,10,22,.55))}
  .related-grid{grid-template-columns:1fr}
  .cta-strip{padding:22px 20px}
  .cta-actions{width:100%}
  .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid .footer-col:last-child{grid-column:auto}
  .site-footer{padding-top:48px;margin-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .hero-banner h1{font-size:26px}
  .hero-stats{grid-template-columns:1fr;border-top:none}
  .hero-stats div{border-left:none;border-top:1px solid var(--line);padding:12px 0 0}
  .hero-stats div:first-child{border-top:none;padding-top:0}
  .section-head h2{font-size:22px}
  .faq-item summary{font-size:14.5px;padding:16px 16px;gap:10px}
  .faq-answer{padding:0 16px 16px;font-size:14px}
  .ability-card{padding:22px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#060A16;
  --bg-1:#0A1226;
  --panel:#0E1730;
  --glass:rgba(18,26,48,.62);
  --brand:#3D6BFF;
  --accent:#35E6C8;
  --nebula:#A46BFF;
  --ink:#EAF0FF;
  --muted:#9AA9C6;
  --faint:#66748F;
  --line:rgba(150,180,255,.16);
  --line-soft:rgba(150,180,255,.10);
  --ok:#35D07F;
  --warn:#FFB44D;
  --err:#FF5C7A;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 28px 60px -30px rgba(0,0,0,.8);
  --mono: ui-monospace,"SFMono-Regular","Space Grotesk",Menlo,Consolas,monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --shell:1200px;
}
/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding-top:104px;
  background:var(--bg-0);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(53,230,200,.10), transparent 42%),
    radial-gradient(circle at 88% 2%, rgba(164,107,255,.10), transparent 46%),
    radial-gradient(1.4px 1.4px at 22% 26%, rgba(255,255,255,.16), transparent),
    radial-gradient(1.4px 1.4px at 68% 12%, rgba(255,255,255,.12), transparent),
    radial-gradient(1.2px 1.2px at 42% 62%, rgba(255,255,255,.10), transparent);
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{color:#6bf0d9}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,230,200,.28);color:#fff}
.wrap{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px;position:relative;z-index:1}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{
  position:fixed;
  left:0;right:0;top:16px;
  z-index:80;
  display:flex;
  justify-content:center;
  padding:0 16px;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  max-width:1080px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  transition:padding .26s ease,background .26s ease,box-shadow .26s ease;
}
.dock.is-scrolled{
  padding-top:6px;
  padding-bottom:6px;
  background:rgba(10,16,34,.92);
  box-shadow:0 20px 44px -26px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;flex:none}
.brand svg{width:30px;height:30px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:16px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.brand-sub{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--faint);margin-top:3px}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.dock-nav a{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:8px 12px;
  border-radius:var(--r-pill);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.dock-nav a:hover{color:var(--ink);background:rgba(150,180,255,.08)}
.dock-nav a.is-active{color:var(--ink)}
.dock-nav a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 10px rgba(53,230,200,.65);
}
.dock-search{display:none}
.dock.is-search-open .dock-search{display:block}
.dock-search input{
  height:40px;width:210px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(6,10,22,.72);
  color:var(--ink);
  font-size:14px;
  font-family:var(--sans);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.dock-search input::placeholder{color:var(--faint)}
.dock-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,230,200,.16)}
.search-toggle{
  width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.search-toggle svg{width:18px;height:18px}
.search-toggle:hover{color:var(--accent);border-color:rgba(53,230,200,.55);background:rgba(53,230,200,.08)}
.dock-cta{
  flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;
  border-radius:var(--r-pill);
  font-size:14px;font-weight:600;
  color:#06121F;
  background:linear-gradient(115deg,var(--accent),var(--brand));
  box-shadow:0 10px 26px -12px rgba(53,230,200,.8);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.dock-cta:hover{color:#06121F;transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(53,230,200,.9)}
.dock-cta:active{transform:translateY(0)}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  padding:64px 0 44px;
  background-image:
    linear-gradient(180deg,rgba(6,10,22,.34),rgba(6,10,22,.94)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-soft);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:18px}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:rgba(150,180,255,.3)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  padding:5px 12px;border-radius:var(--r-pill);
  color:#c9b6ff;background:rgba(164,107,255,.12);
  border:1px solid rgba(164,107,255,.38);
  margin-bottom:18px;
}
.banner-tag i{width:6px;height:6px;border-radius:50%;background:var(--nebula);display:block}
.page-banner h1{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.18;
  font-weight:700;
  max-width:900px;
}
.page-banner h1 em{font-style:normal;color:var(--accent)}
.banner-lead{
  margin-top:18px;
  max-width:680px;
  font-size:16px;
  color:var(--muted);
  line-height:1.9;
}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;
  top:92px;
  z-index:50;
  background:rgba(10,16,34,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.anchor-inner{display:flex;gap:6px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  flex:none;
  font-size:14px;
  color:var(--muted);
  padding:7px 14px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.anchor-inner a:hover{color:var(--ink);background:rgba(150,180,255,.08)}
.anchor-inner a.is-current{
  color:var(--ink);
  background:rgba(53,230,200,.10);
  border-color:rgba(53,230,200,.35);
  box-shadow:inset 0 -2px 0 var(--accent);
}

/* ============ 通用板块 ============ */
main{position:relative;z-index:1;padding-top:64px}
.section{padding:0 0 84px;scroll-margin-top:160px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.section-head h2{font-size:clamp(23px,2.8vw,32px);line-height:1.3}
.section-head p{color:var(--muted);font-size:15px;max-width:560px;margin-top:10px}
.section-note{font-family:var(--mono);font-size:12px;color:var(--faint);letter-spacing:.06em}
.rule{height:1px;background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);margin:26px 0 0}

/* ============ 功能卡网格 ============ */
.func-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:34px}
.func-card{
  position:relative;
  padding:26px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(20,30,58,.86),rgba(11,18,38,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .26s cubic-bezier(.22,.61,.36,1),border-color .26s ease,box-shadow .26s ease;
}
.func-card::before{
  content:"";
  position:absolute;
  inset:7px;
  border:1px dashed rgba(150,180,255,.12);
  border-radius:calc(var(--r-lg) - 7px);
  pointer-events:none;
  transition:border-color .26s ease;
}
.func-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.45);box-shadow:0 34px 66px -32px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08)}
.func-card:hover::before{border-color:rgba(53,230,200,.22)}
.func-top{display:flex;align-items:center;gap:14px}
.func-icon{
  width:46px;height:46px;flex:none;
  display:grid;place-items:center;
  border-radius:14px;
  background:rgba(61,107,255,.14);
  border:1px solid rgba(61,107,255,.36);
  color:var(--accent);
}
.func-icon svg{width:22px;height:22px}
.func-title{font-size:19px;line-height:1.45}
.func-num{display:block;font-family:var(--mono);font-size:12px;color:var(--nebula);letter-spacing:.08em;margin-bottom:2px}
.func-desc{color:var(--muted);font-size:15px;line-height:1.85;margin:14px 0 16px}
.func-meta{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  color:#c9b6ff;
  background:rgba(164,107,255,.10);
  border:1px solid rgba(164,107,255,.34);
}
.tag.cyan{color:#9df0e2;background:rgba(53,230,200,.10);border-color:rgba(53,230,200,.34)}

/* ============ 场景横滚 ============ */
.scene-rail{
  display:grid;
  grid-auto-flow:column;
  grid-auto-columns:minmax(272px,320px);
  gap:18px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 2px 18px;
  margin-top:30px;
  scrollbar-width:thin;
}
.scene-rail::-webkit-scrollbar{height:6px}
.scene-rail::-webkit-scrollbar-thumb{background:rgba(150,180,255,.22);border-radius:99px}
.scene-card{
  scroll-snap-align:start;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
  transition:transform .26s cubic-bezier(.22,.61,.36,1),border-color .26s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.42)}
.scene-card img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.92) contrast(1.04)}
.scene-body{padding:16px 18px 20px}
.scene-body h3{font-size:17px;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--muted);line-height:1.8}
.scene-mark{display:inline-block;font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.1em;margin-bottom:8px}

/* ============ 操作路径 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px;counter-reset:step}
.step{position:relative;padding-top:48px}
.step::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;top:0;left:0;
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:50%;
  font-family:var(--mono);font-size:13px;
  color:#06121F;
  background:linear-gradient(115deg,var(--accent),var(--brand));
  box-shadow:0 12px 26px -12px rgba(53,230,200,.85);
}
.step::after{
  content:"";
  position:absolute;top:17px;left:46px;right:-20px;height:1px;
  background:linear-gradient(90deg,rgba(150,180,255,.28),transparent);
}
.step:last-child::after{display:none}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ 数据条 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  margin-top:44px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(14,23,48,.5);
  border-radius:var(--r-md);
  overflow:hidden;
}
.stat{padding:24px 20px;border-right:1px solid var(--line-soft)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--mono);font-size:26px;font-weight:500;color:var(--ink);line-height:1.3}
.stat span{display:block;margin-top:4px;font-size:12px;color:var(--faint);letter-spacing:.04em}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;margin-top:32px}
.faq details{
  background:rgba(16,24,46,.72);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:0 20px;
  transition:border-color .22s ease,background .22s ease;
}
.faq details:hover{border-color:rgba(150,180,255,.3)}
.faq details[open]{border-color:rgba(53,230,200,.42);background:rgba(18,28,52,.88)}
.faq summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  padding:18px 36px 18px 0;
  font-size:16px;
  color:var(--ink);
  font-weight:500;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";
  position:absolute;right:0;top:15px;
  font-family:var(--mono);
  font-size:20px;line-height:1;
  color:var(--accent);
  transition:transform .24s ease;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-a{padding:0 0 18px;color:var(--muted);font-size:15px;line-height:1.9;max-width:840px}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.rel-card{
  display:flex;align-items:center;gap:14px;
  padding:16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--ink);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.rel-card:hover{color:var(--ink);transform:translateY(-3px);border-color:rgba(53,230,200,.45);background:rgba(20,30,58,.9)}
.rel-card img{width:64px;height:64px;border-radius:10px;object-fit:cover;filter:saturate(.92) contrast(1.04);flex:none}
.rel-card strong{display:block;font-size:16px;font-weight:600}
.rel-card small{display:block;font-size:13px;color:var(--faint);margin-top:3px}
.rel-arrow{margin-left:auto;color:var(--accent);font-family:var(--mono);font-size:15px;transition:transform .24s ease}
.rel-card:hover .rel-arrow{transform:translateX(4px)}

/* ============ 窄版 CTA ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  margin-top:26px;
  padding:26px 30px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(53,230,200,.13),rgba(61,107,255,.16));
  border:1px solid rgba(53,230,200,.3);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.cta-band h3{font-size:20px;margin-bottom:6px}
.cta-band p{font-size:14px;color:var(--muted)}

/* ============ 按钮 ============ */
.btn{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{
  color:#06121F;
  background:linear-gradient(115deg,var(--accent),var(--brand));
  box-shadow:0 12px 32px -8px rgba(53,230,200,.55);
}
.btn-primary::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.55) 50%,transparent 70%);
  transform:translateX(-120%);
  transition:transform .6s ease;
}
.btn-primary:hover{color:#06121F;transform:translateY(-2px);box-shadow:0 20px 44px -10px rgba(53,230,200,.72)}
.btn-primary:hover::after{transform:translateX(120%)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--ink);
  background:rgba(255,255,255,.03);
  border-color:var(--line);
}
.btn-ghost:hover{color:var(--ink);border-color:var(--accent);background:rgba(53,230,200,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  padding-top:64px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,28,.9),rgba(6,10,22,1));
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.5fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-name{font-size:15px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:320px;line-height:1.85}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--muted);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.footer-social a:hover{color:var(--accent);border-color:rgba(53,230,200,.5);background:rgba(53,230,200,.08);transform:translateY(-2px)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-col p{color:var(--muted);font-size:14px;line-height:1.85}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:18px 0 26px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--faint);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .dock-nav{gap:0}
  .dock-nav a{padding:8px 10px;font-size:14px}
}
@media (max-width:991px){
  .func-grid{gap:18px}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px}
  .step:nth-child(2n)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .rel-grid{grid-template-columns:1fr}
  .dock-search input{width:160px}
}
@media (max-width:767px){
  body{padding-top:0;padding-bottom:96px}
  .dock-wrap{
    top:auto;bottom:0;
    padding:10px 10px calc(10px + env(safe-area-inset-bottom));
  }
  .dock{
    gap:10px;
    padding:8px 10px;
    border-radius:16px;
    max-width:100%;
  }
  .brand-name{font-size:14px}
  .brand-sub{display:none}
  .brand svg{width:26px;height:26px}
  .dock-nav{flex:1;overflow-x:auto;justify-content:flex-start;margin:0;scrollbar-width:none}
  .dock-nav::-webkit-scrollbar{display:none}
  .dock-nav a{font-size:13px;padding:7px 9px}
  .dock-nav a.is-active::after{left:9px;right:9px;bottom:2px}
  .dock-search,.search-toggle,.dock-cta{display:none!important}
  .page-banner{min-height:200px;padding:92px 0 34px}
  .banner-lead{font-size:15px;margin-top:14px}
  .anchor-bar{top:0}
  main{padding-top:44px}
  .section{padding-bottom:56px;scroll-margin-top:80px}
  .func-grid{grid-template-columns:1fr;gap:16px}
  .func-card{padding:22px;border-radius:var(--r-md)}
  .func-card::before{inset:6px;border-radius:10px}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2n){border-right:0}
  .stat{border-bottom:1px solid var(--line-soft)}
  .rel-card img{width:56px;height:56px}
  .cta-band{padding:22px;flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-brand p{max-width:100%}
  .site-footer{padding-top:44px}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .page-banner h1{font-size:27px}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
  .stats{grid-template-columns:1fr 1fr}
  .stat b{font-size:22px}
  .scene-rail{grid-auto-columns:minmax(240px,84%)}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* roulang page: category4 */
:root{
  --bg-0:#060A16;
  --bg-1:#0A1226;
  --brand:#3D6BFF;
  --accent:#35E6C8;
  --nebula:#A46BFF;
  --text:#EAF0FF;
  --muted:#9AA9C6;
  --faint:#66748F;
  --glass:rgba(18,26,48,.62);
  --glass-soft:rgba(18,26,48,.42);
  --stroke:rgba(150,180,255,.16);
  --stroke-strong:rgba(150,180,255,.28);
  --ok:#35D07F;
  --warn:#FFB44D;
  --err:#FF5C7A;
  --radius:18px;
  --radius-sm:14px;
  --wrap:1200px;
  --shadow:0 28px 60px -30px rgba(0,0,0,.8);
  --mono:ui-monospace,"SFMono-Regular","Space Grotesk",Menlo,Consolas,monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 420px at 88% -6%, rgba(53,230,200,.10), transparent 62%),
    radial-gradient(620px 380px at 6% 8%, rgba(61,107,255,.12), transparent 66%),
    radial-gradient(circle at 30% 40%, rgba(255,255,255,.05) 1px, transparent 1px),
    radial-gradient(circle at 70% 75%, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:auto,auto,160px 160px,220px 220px;
  opacity:1;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.3;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:80;
  display:flex;
  justify-content:center;
  padding:0 16px;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:12px;
  width:100%;
  max-width:1080px;
  padding:10px 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--stroke);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07), 0 22px 44px -26px rgba(0,0,0,.95);
  transition:padding .28s ease, background .28s ease, box-shadow .28s ease;
}
.dock.is-scrolled{
  padding:6px 12px;
  background:rgba(12,18,36,.88);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 26px 48px -24px rgba(0,0,0,1);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand svg{width:30px;height:30px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap;}
.brand-sub{font-size:10px;letter-spacing:.18em;color:var(--faint);font-family:var(--mono);}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
.dock-nav a{
  position:relative;
  padding:8px 13px;
  font-size:15px;
  color:var(--muted);
  border-radius:999px;
  transition:color .22s ease, background .22s ease;
  white-space:nowrap;
}
.dock-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.dock-nav a.is-active{color:var(--text);}
.dock-nav a.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(53,230,200,.7);
}
.dock-search{display:flex;align-items:center;flex-shrink:0;}
.dock-search input{
  height:40px;
  width:172px;
  padding:0 15px;
  font-size:14px;
  color:var(--text);
  background:rgba(255,255,255,.045);
  border:1px solid var(--stroke);
  border-radius:999px;
  transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
}
.dock-search input::placeholder{color:var(--faint);}
.dock-search input:focus{
  outline:none;
  border-color:var(--accent);
  background:rgba(53,230,200,.07);
  box-shadow:0 0 0 3px rgba(53,230,200,.14);
}
.search-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  color:var(--muted);
  background:rgba(255,255,255,.045);
  border:1px solid var(--stroke);
  border-radius:999px;
  cursor:pointer;
  transition:color .22s ease, border-color .22s ease;
}
.search-toggle:hover{color:var(--accent);border-color:var(--accent);}
.search-toggle svg{width:18px;height:18px;}
.dock-cta{
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 20px;
  font-size:14px;
  font-weight:600;
  color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  border-radius:999px;
  box-shadow:0 12px 28px -10px rgba(53,230,200,.55);
  transition:transform .22s ease, box-shadow .22s ease, filter .22s ease;
}
.dock-cta:hover{transform:translateY(-2px);box-shadow:0 16px 34px -10px rgba(53,230,200,.7);filter:brightness(1.05);}
.dock-cta:active{transform:translateY(0);}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  overflow:hidden;
  transition:transform .24s cubic-bezier(.22,.61,.36,1), box-shadow .24s ease, border-color .24s ease, background .24s ease, color .24s ease;
}
.btn-primary{
  color:#06121F;
  background:linear-gradient(115deg,#35E6C8,#3D6BFF);
  box-shadow:0 12px 32px -8px rgba(53,230,200,.55);
}
.btn-primary::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,transparent 22%,rgba(255,255,255,.6),transparent 78%);
  transform:translateX(-130%);
  transition:transform .7s ease;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -10px rgba(53,230,200,.75);}
.btn-primary:hover::before{transform:translateX(130%);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 22px -10px rgba(53,230,200,.6);}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:var(--stroke);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--accent);background:rgba(53,230,200,.08);}
.btn-ghost:active{transform:translateY(0);}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn svg{width:18px;height:18px;flex-shrink:0;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  font-size:14px;
  font-weight:600;
  position:relative;
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:0;
  background:var(--accent);
  transition:width .3s ease;
}
.text-link:hover::after{width:100%;}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;
  padding:158px 0 64px;
  overflow:hidden;
  background-image:
    linear-gradient(180deg,rgba(6,10,22,.42),rgba(6,10,22,.94)),
    radial-gradient(circle at 78% 18%, rgba(53,230,200,.13), transparent 55%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover,cover;
  background-position:center,center,center;
  border-bottom:1px solid var(--stroke);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle, rgba(255,255,255,.15) 1px, transparent 1px);
  background-size:130px 130px;
  opacity:.5;
  pointer-events:none;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--faint);
  margin-bottom:22px;
}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:rgba(150,180,255,.35);}
.crumb a{color:var(--muted);transition:color .2s ease;}
.crumb a:hover{color:var(--accent);}
.crumb .current{color:var(--text);}
.hero-stamp{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  margin-bottom:18px;
  font-size:12px;
  letter-spacing:.02em;
  color:var(--accent);
  border:1px dashed rgba(53,230,200,.5);
  border-radius:999px;
  background:rgba(53,230,200,.06);
}
.hero-stamp span.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.18;
  font-weight:700;
  max-width:19ch;
  margin-bottom:20px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--accent);
}
.hero-lead{
  max-width:64ch;
  font-size:16px;
  line-height:1.9;
  color:var(--muted);
  margin-bottom:28px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px 34px;
  padding-top:22px;
  border-top:1px dashed rgba(150,180,255,.18);
  max-width:760px;
}
.hero-meta div{display:flex;flex-direction:column;gap:2px;}
.hero-meta dt,.hero-meta .k{font-size:12px;letter-spacing:.04em;color:var(--faint);}
.hero-meta .v{font-family:var(--mono);font-size:17px;color:var(--text);}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;
  top:86px;
  z-index:60;
  margin:-26px auto 0;
  max-width:820px;
  display:flex;
  align-items:center;
  gap:4px;
  padding:7px;
  overflow-x:auto;
  scrollbar-width:none;
  background:rgba(12,19,38,.82);
  border:1px solid var(--stroke);
  border-radius:999px;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07), 0 20px 40px -26px rgba(0,0,0,.95);
}
.anchor-bar::-webkit-scrollbar{display:none;}
.anchor-bar a{
  position:relative;
  flex:1;
  text-align:center;
  white-space:nowrap;
  padding:8px 14px;
  font-size:14px;
  color:var(--muted);
  border-radius:999px;
  transition:color .22s ease, background .22s ease;
}
.anchor-bar a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.anchor-bar a.is-current{color:var(--text);}
.anchor-bar a.is-current::after{
  content:"";
  position:absolute;
  left:50%;bottom:3px;
  transform:translateX(-50%);
  width:26px;height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(53,230,200,.8);
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(23px,2.8vw,32px);
  line-height:1.3;
  font-weight:700;
}
.section-head .sub{
  margin-top:10px;
  font-size:14px;
  color:var(--muted);
  max-width:60ch;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--nebula);
  margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:rgba(164,107,255,.6);}

/* ---------- FAQ 两列瀑布 ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:8px;
}
.faq-cols{
  columns:2;
  column-gap:24px;
}
.faq-item{
  break-inside:avoid;
  margin:0 0 18px;
  padding:0;
  background:var(--glass-soft);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05), 0 18px 40px -30px rgba(0,0,0,.9);
  transition:border-color .26s ease, transform .26s cubic-bezier(.22,.61,.36,1), background .26s ease;
  overflow:hidden;
}
.faq-item:hover{border-color:var(--stroke-strong);background:rgba(22,31,56,.6);}
.faq-item[open]{border-color:rgba(53,230,200,.42);background:rgba(20,30,54,.72);}
.faq-item summary{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:20px 22px;
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-item summary:hover{color:var(--accent);}
.faq-num{
  flex-shrink:0;
  font-family:var(--mono);
  font-size:13px;
  color:var(--nebula);
  padding-top:2px;
  letter-spacing:.04em;
}
.faq-q{flex:1;}
.faq-plus{
  flex-shrink:0;
  width:22px;height:22px;
  margin-top:1px;
  display:grid;
  place-items:center;
  border:1px solid var(--stroke);
  border-radius:50%;
  color:var(--muted);
  transition:transform .28s ease, color .24s ease, border-color .24s ease;
}
.faq-plus svg{width:12px;height:12px;}
.faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--accent);border-color:rgba(53,230,200,.55);}
.faq-body{
  padding:0 22px 22px 58px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}
.faq-body p{margin-bottom:12px;}
.faq-body p:last-child{margin-bottom:0;}
.faq-body .tip{
  display:block;
  margin-top:12px;
  padding:12px 14px;
  font-size:13.5px;
  line-height:1.8;
  color:var(--text);
  background:rgba(53,230,200,.07);
  border-left:2px solid var(--accent);
  border-radius:0 10px 10px 0;
}
.faq-aside{
  margin-top:6px;
  padding:22px;
  border:1px dashed rgba(150,180,255,.24);
  border-radius:var(--radius);
  background:rgba(14,22,42,.5);
}
.faq-aside h3{font-size:17px;margin-bottom:10px;}
.faq-aside p{font-size:14px;color:var(--muted);margin-bottom:16px;}

/* ---------- 速查卡 ---------- */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.quick-card{
  position:relative;
  background:var(--glass-soft);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.05);
  transition:transform .26s cubic-bezier(.22,.61,.36,1), border-color .26s ease, box-shadow .26s ease;
}
.quick-card:hover{transform:translateY(-4px);border-color:rgba(53,230,200,.45);}
.quick-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,rgba(61,107,255,.22),rgba(6,10,22,.9));
}
.quick-media img{
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
  filter:saturate(.92) contrast(1.04);
  transition:transform .5s cubic-bezier(.22,.61,.36,1);
}
.quick-card:hover .quick-media img{transform:scale(1.05);}
.quick-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,.05),rgba(6,10,22,.85));
}
.quick-tag{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
  padding:3px 10px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--nebula);
  background:rgba(6,10,22,.72);
  border:1px solid rgba(164,107,255,.5);
  border-radius:999px;
}
.quick-body{padding:20px 22px 24px;}
.quick-body h3{font-size:19px;margin-bottom:10px;}
.quick-body p{font-size:14px;color:var(--muted);margin-bottom:14px;}
.quick-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin-bottom:6px;
}
.quick-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:rgba(53,230,200,.75);
  box-shadow:0 0 8px rgba(53,230,200,.6);
}
.quick-list li:last-child{margin-bottom:0;}

/* ---------- 相关分类 ---------- */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.rel-card{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:22px;
  background:rgba(16,24,46,.55);
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  transition:transform .26s cubic-bezier(.22,.61,.36,1), border-color .26s ease, background .26s ease;
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(53,230,200,.45);background:rgba(20,30,56,.68);}
.rel-icon{
  flex-shrink:0;
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:12px;
  color:var(--accent);
  background:rgba(53,230,200,.08);
  border:1px solid rgba(53,230,200,.28);
}
.rel-icon svg{width:20px;height:20px;}
.rel-card h3{font-size:17px;margin-bottom:6px;}
.rel-card p{font-size:14px;color:var(--muted);margin-bottom:0;}
.rel-arrow{
  margin-left:auto;
  color:var(--faint);
  transition:transform .24s ease, color .24s ease;
  align-self:center;
}
.rel-card:hover .rel-arrow{transform:translateX(4px);color:var(--accent);}
.rel-arrow svg{width:18px;height:18px;}

/* ---------- 窄版 CTA ---------- */
.cta-band{
  margin-top:64px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:28px 32px;
  border-radius:var(--radius);
  background:
    radial-gradient(520px 180px at 12% 0%, rgba(53,230,200,.15), transparent 62%),
    linear-gradient(120deg,rgba(18,28,52,.94),rgba(12,18,36,.9));
  border:1px solid rgba(53,230,200,.28);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.07);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--muted);margin:0;max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:96px;
  padding:64px 0 0;
  background:linear-gradient(180deg,rgba(8,13,28,.6),rgba(6,10,22,.98));
  border-top:1px solid var(--stroke);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{font-size:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted);max-width:34ch;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  color:var(--muted);
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  border-radius:10px;
  transition:color .22s ease, border-color .22s ease, transform .22s ease;
}
.footer-social a:hover{color:var(--accent);border-color:rgba(53,230,200,.5);transform:translateY(-2px);}
.footer-social svg{width:18px;height:18px;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--text);
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(150,180,255,.18);
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;
  color:var(--muted);
  transition:color .22s ease;
}
.footer-col ul a:hover{color:var(--accent);}
.footer-col p{font-size:14px;line-height:1.85;color:var(--muted);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid rgba(150,180,255,.12);
}
.footer-bottom p{
  margin:0;
  font-size:13px;
  color:var(--faint);
}
.footer-bottom .mono{font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .dock-nav a{padding:8px 10px;font-size:14px;}
  .dock-search input{width:140px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:60ch;}
}
@media (max-width:991px){
  .dock-search{display:none;}
  .search-toggle{display:inline-flex;}
  .dock.is-search-open .dock-search{
    display:flex;
    order:5;
    width:100%;
  }
  .dock.is-search-open .dock-search input{width:100%;}
  .dock.is-search-open{flex-wrap:wrap;border-radius:22px;}
  .page-hero{padding:140px 0 56px;}
  .anchor-bar{max-width:none;margin:-26px 24px 0;}
  .section{padding:72px 0 0;}
  .quick-grid{grid-template-columns:1fr 1fr;}
  .rel-grid{grid-template-columns:1fr 1fr;}
  .faq-cols{columns:1;}
}
@media (max-width:767px){
  .dock-wrap{top:auto;bottom:0;padding:8px 10px 12px;}
  .dock{
    border-radius:20px;
    padding:9px 12px;
    gap:8px;
    flex-wrap:wrap;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08), 0 -18px 40px -22px rgba(0,0,0,.95);
  }
  .dock-nav{
    order:4;
    width:100%;
    margin:4px 0 0;
    overflow-x:auto;
    scrollbar-width:none;
    justify-content:flex-start;
    padding-bottom:2px;
  }
  .dock-nav::-webkit-scrollbar{display:none;}
  .dock-nav a{font-size:14px;padding:7px 11px;}
  .dock-cta{margin-left:auto;height:36px;padding:0 16px;font-size:13px;}
  .search-toggle{width:36px;height:36px;margin-left:auto;}
  .dock-cta{margin-left:0;}
  body{padding-bottom:92px;}
  .page-hero{padding:104px 0 44px;background-position:center,center,center top;}
  .page-hero h1{max-width:none;font-size:clamp(26px,7vw,34px);}
  .hero-lead{font-size:15px;}
  .hero-meta{gap:14px 26px;padding-top:18px;}
  .anchor-bar{
    position:sticky;
    top:8px;
    margin:14px 16px 0;
    justify-content:flex-start;
    border-radius:14px;
  }
  .anchor-bar a{flex:0 0 auto;font-size:13.5px;padding:7px 12px;}
  .section{padding:56px 0 0;}
  .wrap{padding:0 16px;}
  .faq-item{border-radius:var(--radius-sm);}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-body{padding:0 16px 18px 44px;font-size:14.5px;}
  .faq-aside{padding:18px;}
  .quick-grid{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .rel-card{padding:18px;}
  .cta-band{margin-top:48px;padding:22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;min-width:140px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .brand-name{font-size:14px;}
  .brand-sub{font-size:9px;}
  .page-hero{padding-top:96px;}
  .hero-meta{gap:12px 20px;}
  .hero-meta .v{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .quick-body{padding:16px 18px 20px;}
  .faq-body{padding-left:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}