/* roulang page: index */
:root{
  --bg-0:#05080F;--bg-1:#0A1020;--bg-2:#101A2E;
  --line:rgba(140,170,220,.14);
  --glass:rgba(255,255,255,.045);
  --brand:#2FA8FF;--brand-2:#6E8CFF;
  --signal:#FFB020;--signal-hover:#FFC24D;
  --text-1:#E8EEF9;--text-2:#A9B6CC;--text-3:#6C7A93;
  --ok:#34D399;--warn:#FFB020;--error:#FF6B6B;
  --r-card:16px;--r-img:12px;--r-btn:12px;--r-input:12px;--r-bar:20px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","JetBrains Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.01em;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:rgba(47,168,255,.32);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{position:relative;padding:104px 0}
.section--tint{background:linear-gradient(180deg,var(--bg-0),var(--bg-1) 45%,var(--bg-0))}
.section--panel{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-label{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:14px;
}
.section-label::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.section h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;color:var(--text-1)}
.section-sub{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:600;white-space:nowrap;
  padding:8px 2px;border-bottom:1px solid transparent;
}
.text-link .arrow{transition:transform .22s var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}
.text-link:hover{color:#6FC4FF}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--signal);color:#1A1204;box-shadow:0 6px 24px rgba(255,176,32,.28)}
.btn-primary:hover{background:var(--signal-hover);box-shadow:0 10px 34px rgba(255,176,32,.42);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;box-shadow:inset 0 0 0 1px rgba(47,168,255,.35)}
.btn-text{color:var(--brand);padding:0 4px;height:auto}
.btn-text .arrow{transition:transform .22s var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.icon-btn:hover{color:#fff;border-color:rgba(47,168,255,.55);box-shadow:0 0 0 3px rgba(47,168,255,.12);transform:translateY(-2px)}
@supports not (backdrop-filter:blur(1px)){
  .icon-btn,.command-search,.hero-card,.collection-card,.news-card,.rail-card,.faq-item,.spotlight,.cta-bar,.footer-col,.note-card{background:#0E1729}
}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:5px 11px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);font-size:12px;color:var(--text-2);white-space:nowrap;
}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(47,168,255,.9)}
.badge.signal i{background:var(--signal);box-shadow:0 0 10px rgba(255,176,32,.9)}
.pill{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);font-size:12px;color:var(--text-2);letter-spacing:.02em;transition:all .22s var(--ease);
}
.pill:hover{border-color:rgba(47,168,255,.5);color:var(--text-1)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.85);border-bottom-color:var(--line);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(47,168,255,.22),rgba(255,176,32,.18));
  border:1px solid rgba(47,168,255,.45);
}
.brand-text{font-size:16px;font-weight:600;color:var(--text-1);letter-spacing:.01em}
.brand-short{display:none}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{position:relative;font-size:14px;color:var(--text-2);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--signal));transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.is-active::after{width:16px}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;width:264px;height:40px;padding:0 10px 0 12px;
  border-radius:var(--r-input);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,168,255,.16)}
.command-search svg{color:var(--text-3);flex-shrink:0}
.command-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;font-size:13px;color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search kbd{
  font-family:var(--font-num);font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:2px 5px;line-height:1;
}
.nav-toggle{display:none;width:40px;height:40px;border-radius:50%;background:var(--glass);border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1)}
.nav-mask{
  position:fixed;inset:0;background:rgba(5,8,15,.7);opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:90;
}
.nav-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:95;
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:24px 22px 32px;display:flex;flex-direction:column;gap:22px;
  transform:translateX(102%);transition:transform .3s var(--ease);overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{padding:12px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2)}
.drawer-nav a.is-active{color:var(--brand);font-weight:600}
.drawer-nav a:hover{color:var(--text-1)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;min-height:clamp(520px,68vh,680px);display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.55;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.78) 0%,rgba(5,8,15,.86) 52%,var(--bg-0) 100%);
}
.hero-grid{
  position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(120,160,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,160,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 30% 45%,rgba(0,0,0,.9),transparent 72%);
  mask-image:radial-gradient(circle at 30% 45%,rgba(0,0,0,.9),transparent 72%);
}
.hero-beam{
  position:absolute;left:32px;bottom:56px;width:120px;height:2px;z-index:2;
  background:linear-gradient(90deg,var(--brand),rgba(47,168,255,0));
}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:center;padding-top:56px;padding-bottom:64px}
.hero-copy{max-width:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-2);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 12px rgba(255,176,32,.95)}
.hero h1{
  margin-top:20px;font-size:clamp(32px,4.4vw,52px);line-height:1.15;font-weight:700;color:#F3F7FF;
}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.4vw,17px);color:var(--text-2);max-width:600px}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-search{
  display:flex;align-items:center;gap:10px;height:48px;padding:0 8px 0 14px;min-width:300px;flex:1;max-width:380px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-input);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.hero-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,168,255,.16)}
.hero-search svg{color:var(--text-3);flex-shrink:0}
.hero-search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px}
.hero-search input::placeholder{color:var(--text-3)}
.hero-points{margin-top:44px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.hero-points li{border-top:1px solid var(--line);padding-top:14px}
.hero-points .idx{font-family:var(--font-num);font-size:12px;color:var(--signal);letter-spacing:.1em}
.hero-points .pt{display:block;margin-top:6px;font-size:14px;color:var(--text-1);font-weight:600}
.hero-points .pd{display:block;margin-top:4px;font-size:13px;color:var(--text-3);line-height:1.7}
.hero-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.hero-card h3{margin-top:16px;font-size:17px;color:var(--text-1)}
.hero-card p{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.8}
.hero-card .card-meta{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);display:flex;justify-content:space-between;align-items:center}

/* ---------- 合集目录 ---------- */
.collection-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.collection-card{
  position:relative;display:flex;flex-direction:column;gap:14px;padding:18px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.collection-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3);box-shadow:var(--shadow-card)}
.collection-card .card-index{
  position:absolute;top:26px;left:26px;z-index:2;font-family:var(--font-num);font-size:12px;letter-spacing:.12em;
  color:#0B1220;background:var(--signal);border-radius:999px;padding:3px 9px;
}
.card-media{position:relative;overflow:hidden;border-radius:var(--r-img);background:var(--bg-2)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.collection-card:hover .card-media img{transform:scale(1.04)}
.collection-card h3{font-size:18px;line-height:1.45;color:var(--text-1)}
.collection-card .card-meta{font-size:12px;color:var(--text-3)}
.card-arrow{
  position:absolute;right:18px;bottom:18px;color:var(--text-3);transition:transform .22s var(--ease),color .22s var(--ease);
}
.collection-card:hover .card-arrow{color:var(--brand);transform:translateX(4px)}

/* ---------- 精选条目 ---------- */
.featured-layout{display:grid;grid-template-columns:7fr 1px 5fr;gap:40px;align-items:start}
.featured-divider{background:var(--line);align-self:stretch;min-height:100%}
.spotlight{
  display:block;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.spotlight:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3);box-shadow:var(--shadow-card)}
.spotlight .card-media{border-radius:0}
.spotlight .card-media img{aspect-ratio:16/9}
.spotlight-body{padding:26px}
.spotlight-body h3{margin-top:14px;font-size:clamp(19px,2vw,23px);line-height:1.45}
.spotlight-body p{margin-top:14px;font-size:15px;color:var(--text-2);line-height:1.85}
.spotlight-body .card-meta{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.feature-list{display:flex;flex-direction:column}
.feature-row{
  display:grid;grid-template-columns:52px minmax(0,1fr) 20px;gap:14px;align-items:center;
  padding:20px 8px;border-bottom:1px solid var(--line);transition:background .22s var(--ease),transform .22s var(--ease);
}
.feature-row:last-child{border-bottom:0}
.feature-row:hover{background:rgba(47,168,255,.05);transform:translateX(4px)}
.feature-row .num{font-family:var(--font-num);font-size:14px;color:var(--text-3);letter-spacing:.08em}
.feature-row:hover .num{color:var(--brand)}
.feature-row h3{font-size:16px;line-height:1.5;color:var(--text-1)}
.feature-row .meta{margin-top:6px;font-size:12px;color:var(--text-3)}
.feature-row .go{color:var(--text-3);transition:transform .22s var(--ease),color .22s var(--ease)}
.feature-row:hover .go{color:var(--brand);transform:translateX(4px)}

/* ---------- 资讯列表卡 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;padding:16px;height:100%;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3);box-shadow:var(--shadow-card)}
.news-card:hover .card-media img{transform:scale(1.04)}
.news-card h3{margin-top:14px;font-size:17px;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a:hover{color:#7FCBFF}
.card-excerpt{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:var(--text-3);
}
.card-foot .time{display:inline-flex;align-items:center;gap:6px}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--glass);color:var(--text-2);
}
.empty-state svg{color:var(--text-3)}
.empty-state p{font-size:14px}

/* ---------- 相关推荐卡带 ---------- */
.rail-head{display:flex;align-items:center;gap:12px}
.rail-wrap{position:relative}
.rail{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 22px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 clamp(240px,24%,296px);scroll-snap-align:start;display:flex;flex-direction:column;padding:14px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.rail-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3);box-shadow:var(--shadow-card)}
.rail-card .card-media img{aspect-ratio:3/2}
.rail-card h3{margin-top:14px;font-size:16px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-card .card-meta{margin-top:10px;font-size:12px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:border-color .22s var(--ease);
}
.faq-item.is-open{border-color:rgba(47,168,255,.32)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-1);text-align:left;
}
.faq-q .sign{
  flex-shrink:0;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);font-family:var(--font-num);font-size:18px;line-height:1;
  transition:transform .28s var(--ease);
}
.faq-item.is-open .sign{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2);width:90%}
.faq-item.is-open .faq-a{max-height:340px}

/* ---------- 类目互链与说明 ---------- */
.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.note-card{
  padding:22px;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.note-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3)}
.note-card h3{font-size:16px}
.note-card p{margin-top:10px;font-size:14px;color:var(--text-2)}
.note-card .text-link{margin-top:14px;font-size:13px}

/* ---------- CTA ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:48px 56px;border-radius:var(--r-bar);
  background:linear-gradient(120deg,rgba(47,168,255,.14),rgba(110,140,255,.07) 42%,rgba(255,176,32,.1));
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
}
.cta-bar h2{font-size:clamp(22px,2.4vw,30px)}
.cta-bar p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:520px}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.share-group{display:flex;gap:10px}
.share-group .icon-btn{width:44px;height:44px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr 1.4fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13px;color:var(--text-3);line-height:1.9;max-width:320px}
.footer-icons{display:flex;gap:10px;margin-top:18px}
.footer-col-title{font-size:13px;font-weight:600;color:var(--text-1);letter-spacing:.06em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:var(--text-3)}
.footer-links a:hover{color:var(--brand)}
.footer-contact p{font-size:13px;color:var(--text-3);line-height:1.9}
.footer-contact .mail{margin-top:12px;display:inline-flex;font-size:13px;color:var(--brand)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.footer-bottom .right{display:flex;align-items:center;gap:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .hero-inner{grid-template-columns:minmax(0,1fr) 320px;gap:40px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .command-search{display:none}
  .header-actions .btn-primary{display:none}
  .header-actions .icon-btn{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-card{display:none}
  .collection-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .featured-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .featured-divider{display:none}
  .feature-list{border-top:1px solid var(--line)}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .note-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:30px}
  .brand-full{display:none}
  .brand-short{display:inline}
  .hero{min-height:auto;padding-top:32px;padding-bottom:44px}
  .hero-inner{padding-top:40px;padding-bottom:48px}
  .hero-beam{left:20px;bottom:28px}
  .hero-search{min-width:0;width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-points{grid-template-columns:minmax(0,1fr);gap:16px;margin-top:32px}
  .collection-grid{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .note-grid{grid-template-columns:minmax(0,1fr)}
  .rail-card{flex:0 0 78%}
  .cta-bar{padding:32px 22px;gap:24px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .share-group{justify-content:flex-start}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px;width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:6px}
  .footer-col{border-bottom:1px solid var(--line)}
  .footer-col-title{display:flex;align-items:center;justify-content:space-between;padding:16px 0;margin-bottom:0;cursor:pointer}
  .footer-col-title::after{content:"＋";color:var(--text-3);font-family:var(--font-num)}
  .footer-col.is-open .footer-col-title::after{content:"－";color:var(--brand)}
  .footer-links,.footer-contact p,.footer-contact .mail{display:none}
  .footer-col.is-open .footer-links,.footer-col.is-open .footer-contact p,.footer-col.is-open .footer-contact .mail{display:flex}
  .footer-col.is-open .footer-links{flex-direction:column}
  .footer-col.is-open .footer-contact p{display:block}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  body{font-size:15px}
  .spotlight-body{padding:20px}
  .feature-row{grid-template-columns:40px minmax(0,1fr) 18px;padding:16px 4px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .collection-card:hover,.news-card:hover,.rail-card:hover,.spotlight:hover,.note-card:hover,.btn-primary:hover,.icon-btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --bg-0:#05080F; --bg-1:#0A1020; --bg-2:#101A2E;
  --line:rgba(140,170,220,.14);
  --glass:rgba(255,255,255,.045);
  --brand:#2FA8FF; --brand-2:#6E8CFF; --brand-soft:rgba(47,168,255,.14);
  --signal:#FFB020; --signal-hover:#FFC24D;
  --text-1:#E8EEF9; --text-2:#A9B6CC; --text-3:#6C7A93;
  --success:#34D399; --warning:#FFB020; --error:#FF6B6B;
  --r-card:16px; --r-img:12px; --r-btn:12px; --r-bar:20px;
  --sh-card:0 20px 60px rgba(0,0,0,.45);
  --sh-cta:0 6px 24px rgba(255,176,32,.28);
  --sh-cta-h:0 10px 34px rgba(255,176,32,.42);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","JetBrains Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(47,168,255,.3)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:600;letter-spacing:.01em}
.section-sub{margin-top:10px;color:var(--text-2);font-size:15px}
.grid-lines{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,160,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,160,255,.055) 1px,transparent 1px);
  background-size:88px 88px;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);}
/* header */
.site-header{position:sticky;top:0;z-index:80;transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease)}
.site-header::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:transparent;transition:background .22s var(--ease)}
.site-header.is-scrolled{background:rgba(5,8,15,.85);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%)}
.site-header.is-scrolled::after{background:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--glass);border:1px solid var(--line)}
.brand-text{font-size:16px;font-weight:600;color:var(--text-1);letter-spacing:.01em;white-space:nowrap}
.brand-short{display:none}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{position:relative;padding:6px 0;font-size:14px;color:var(--text-2)}
.nav-link::after{content:'';position:absolute;left:0;bottom:0;height:2px;width:16px;background:linear-gradient(90deg,var(--brand),var(--signal));transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{display:flex;align-items:center;gap:8px;width:264px;height:40px;padding:0 10px 0 12px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--text-3);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.command-search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:13px;color:var(--text-1)}
.command-search input::placeholder{color:var(--text-3)}
.command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,168,255,.18);color:var(--brand)}
.command-search kbd{font-family:var(--font-num);font-size:11px;padding:2px 6px;border:1px solid var(--line);border-radius:6px;color:var(--text-3)}
.icon-btn{width:40px;height:40px;flex:0 0 auto;display:inline-grid;place-items:center;background:var(--glass);
  border:1px solid var(--line);border-radius:50%;color:var(--text-2);cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease)}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,168,255,.14);transform:translateY(-2px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-btn);border:1px solid transparent;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease),color .22s var(--ease);white-space:nowrap}
.btn-sm{height:40px;padding:0 16px}
.btn-primary{background:var(--signal);color:#1B1200;box-shadow:var(--sh-cta)}
.btn-primary:hover{background:var(--signal-hover);box-shadow:var(--sh-cta-h);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(255,176,32,.3)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:inset 0 0 22px rgba(47,168,255,.12)}
.btn-text{background:none;border:0;color:var(--brand);padding:0 2px}
.btn-text svg{transition:transform .22s var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.nav-toggle{display:none;width:40px;height:40px;place-items:center;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--text-1);cursor:pointer}
.drawer-extra{display:none}
/* hero */
.article-hero{position:relative;overflow:hidden;padding:64px 0 48px}
.article-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.5}
.article-hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.72) 0%,rgba(5,8,15,.9) 55%,var(--bg-0) 100%)}
.article-hero .container{position:relative;z-index:2}
.scan-line{position:absolute;left:32px;bottom:26px;width:120px;height:2px;background:linear-gradient(90deg,var(--brand),transparent);z-index:3}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:var(--text-1)}
.badge{display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);font-size:12px;color:var(--text-2);letter-spacing:.04em}
.badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(47,168,255,.8)}
.badge.is-signal::before{background:var(--signal);box-shadow:0 0 8px rgba(255,176,32,.8)}
.article-title{margin:20px 0 0;font-size:clamp(26px,3.4vw,40px);line-height:1.25;font-weight:600;letter-spacing:.01em;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7}
.article-cover{margin-top:32px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
/* article layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:56px;align-items:start}
.article-main{min-width:0}
.content{max-width:820px;font-size:17px;line-height:1.9;color:#DCE5F2}
.content p{margin:0 0 1.15em}
.content h2{position:relative;font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:600;margin:48px 0 18px;padding-left:16px;color:var(--text-1)}
.content h2::before{content:'';position:absolute;left:0;top:.34em;width:4px;height:18px;border-radius:2px;background:var(--brand)}
.content h3{font-size:19px;font-weight:600;margin:32px 0 12px;color:var(--text-1)}
.content strong{color:#F3F7FF}
.content ul,.content ol{margin:0 0 1.2em}
.content li{position:relative;padding-left:22px;margin:0 0 .6em}
.content ul>li::before{content:'';position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:1.5px;background:var(--brand)}
.content ol{counter-reset:olm}
.content ol>li{counter-increment:olm}
.content ol>li::before{content:counter(olm) '.';position:absolute;left:0;top:0;font-family:var(--font-num);font-size:14px;color:var(--brand)}
.content blockquote{margin:24px 0;padding:20px 22px;border-left:3px solid var(--brand);border-radius:0 var(--r-img) var(--r-img) 0;background:var(--glass);color:var(--text-2)}
.content img{border-radius:var(--r-img);margin:24px auto;height:auto}
.content figure{margin:24px 0}
.content figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.content a{color:var(--brand);border-bottom:1px solid rgba(47,168,255,.35)}
.content a:hover{border-bottom-color:var(--brand)}
.content code{font-family:var(--font-num);font-size:14px;background:var(--bg-2);padding:2px 6px;border-radius:6px;border:1px solid var(--line)}
.content pre{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-img);padding:18px;overflow-x:auto;font-family:var(--font-num);font-size:14px;line-height:1.7;margin:24px 0}
.content pre code{background:none;border:0;padding:0}
.content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border-radius:var(--r-img);overflow:hidden}
.content th{background:var(--bg-2);text-align:left;padding:12px 14px;border:1px solid var(--line);color:var(--text-1)}
.content td{padding:12px 14px;border:1px solid var(--line);color:var(--text-2)}
.content tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
/* toc */
.article-side{position:relative}
.toc-card{position:sticky;top:88px;padding:20px;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%)}
.toc-title{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:14px}
.toc-list li{margin:0}
.toc-link{display:block;padding:7px 10px;font-size:13px;line-height:1.5;color:var(--text-2);border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:all .22s var(--ease)}
.toc-link:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
.toc-link.is-current{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft)}
.toc-mobile{display:none;margin-bottom:28px;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:14px 18px}
.toc-mobile summary{cursor:pointer;font-size:14px;font-weight:600;color:var(--text-1);list-style:none}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:'+';float:right;color:var(--brand);font-family:var(--font-num)}
.toc-mobile[open] summary::after{content:'−'}
.toc-mobile .toc-list{margin-top:10px}
/* tags */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:44px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-right:4px}
.tag{display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;border:1px solid var(--line);background:var(--glass);font-size:12px;color:var(--text-2);transition:all .22s var(--ease)}
.tag:hover{color:var(--brand);border-color:var(--brand)}
/* faq */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .22s var(--ease)}
.faq-item:hover{border-color:rgba(47,168,255,.3)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;
  background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);cursor:pointer}
.faq-q .sign{flex:0 0 auto;font-family:var(--font-num);font-size:18px;color:var(--brand);transition:transform .22s var(--ease)}
.faq-item.is-open .faq-q .sign{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 22px 22px;width:90%;font-size:15px;color:var(--text-2)}
/* cards */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.post-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3);box-shadow:var(--sh-card)}
.post-thumb{overflow:hidden}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .22s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1}
.post-title{font-size:17px;font-weight:600;line-height:1.5;margin:12px 0 0;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{margin:10px 0 0;font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;
  border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.post-meta .left{display:inline-flex;align-items:center;gap:7px}
/* prev next */
.prevnext{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:40px}
.prevnext a{display:flex;flex-direction:column;gap:8px;padding:20px 22px;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);transition:all .22s var(--ease)}
.prevnext a:hover{border-color:var(--brand);transform:translateY(-2px)}
.prevnext .k{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.prevnext .v{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.5}
.back-row{margin-top:32px}
/* cta */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 48px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-bar);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:600}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
/* empty */
.state-empty{max-width:820px;padding:64px 32px;text-align:center;background:var(--glass);border:1px dashed var(--line);border-radius:var(--r-card)}
.state-empty svg{margin:0 auto 16px;color:var(--text-3)}
.state-empty p{color:var(--text-2);font-size:15px;margin-bottom:20px}
.skeleton{background:linear-gradient(90deg,rgba(255,255,255,.04) 25%,rgba(255,255,255,.09) 37%,rgba(255,255,255,.04) 63%);
  background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:8px}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
/* footer */
.site-footer{margin-top:24px;border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8}
.footer-icons{display:flex;gap:10px;margin-top:20px}
.footer-col-title{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-2);transition:color .22s var(--ease)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:56px;padding:22px 0;
  border-top:1px solid var(--line);font-size:13px;color:var(--text-3);flex-wrap:wrap}
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .header-inner{gap:12px;height:56px}
  .main-nav{position:fixed;top:0;right:0;z-index:90;width:min(88vw,360px);height:100vh;margin:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:88px 24px 32px;background:var(--bg-1);
    border-left:1px solid var(--line);transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto}
  body.nav-open .main-nav{transform:translateX(0)}
  body.nav-open::after{content:'';position:fixed;inset:0;background:rgba(5,8,15,.7);z-index:85}
  .nav-link{padding:12px 0;font-size:15px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-toggle{display:grid}
  .command-search:not(.command-search--drawer),.header-actions .btn{display:none}
  .drawer-extra{display:block;margin-top:24px}
  .drawer-extra .command-search{display:flex;width:100%;margin-bottom:14px}
  .drawer-extra .btn{width:100%}
  .drawer-note{margin-top:14px;font-size:13px;color:var(--text-3)}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-side{display:none}
  .toc-mobile{display:block}
  .article-hero{padding:40px 0 32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  .brand-full{display:none}
  .brand-short{display:inline}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .prevnext{grid-template-columns:minmax(0,1fr)}
  .cta-band{flex-direction:column;align-items:stretch;padding:32px 24px}
  .cta-actions .btn{width:100%}
  .content{font-size:16px}
  .post-card{box-shadow:none}
}
@media (max-width:575px){
  .section{padding:56px 0}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .article-title{font-size:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .command-search,.toc-card,.toc-mobile,.post-card,.cta-band,.faq-item,.badge{background:#0E1729}
  .site-header.is-scrolled{background:#070C16}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#101A2E;
  --line:rgba(140,170,220,.14);
  --line-strong:rgba(140,170,220,.28);
  --glass:rgba(255,255,255,.045);
  --brand:#2FA8FF;
  --brand-2:#6E8CFF;
  --signal:#FFB020;
  --signal-h:#FFC24D;
  --text-1:#E8EEF9;
  --text-2:#A9B6CC;
  --text-3:#6C7A93;
  --ok:#34D399;
  --warn:#FFB020;
  --err:#FF6B6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:12px;
  --r-bar:20px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:64px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,160,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.055) 1px,transparent 1px);
  background-size:88px 88px;
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 0%,transparent 72%);
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease)}
a:hover{color:var(--signal)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
svg{display:block;flex:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(47,168,255,.28);color:#fff}

/* ============ 布局容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-title{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:600;
  letter-spacing:.01em;
}
.section-sub{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:640px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-2);
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(47,168,255,.9);
}
.eyebrow.is-signal::before{background:var(--signal);box-shadow:0 0 10px rgba(255,176,32,.9)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 玻璃面板 ============ */
.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass,
  .site-header.is-scrolled,
  .nav-drawer,
  .command-search,
  .entry-card,
  .chip,
  .faq-item,
  .cross-card,
  .cta-bar,
  .step-card,
  .icon-btn{
    background:#0E1729;
  }
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.85);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  flex:none;
}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:30px;
  height:30px;
  border-radius:9px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,rgba(47,168,255,.16),rgba(255,176,32,.12));
  border:1px solid var(--line);
  flex:none;
}
.brand-short{display:none}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--signal));
  transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:16px}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{width:16px}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:none;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:260px;
  height:40px;
  padding:0 12px;
  border-radius:var(--r-input);
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.command-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,168,255,.18);
}
.command-search input{
  flex:1;
  min-width:0;
  background:none;
  border:0;
  outline:none;
  font-size:13px;
  color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search kbd{
  font-family:var(--font-num);
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 5px;
  line-height:1.5;
}
.icon-btn{
  width:40px;
  height:40px;
  border-radius:50%;
  display:grid;
  place-items:center;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,168,255,.12);transform:translateY(-2px)}
.icon-btn:active{transform:translateY(0)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:50%;place-items:center;color:var(--text-1);background:var(--glass);border:1px solid var(--line)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:13px}
.btn-primary{
  background:var(--signal);
  color:#0A1020;
  box-shadow:0 6px 24px rgba(255,176,32,.28);
}
.btn-primary:hover{
  background:var(--signal-h);
  color:#0A1020;
  box-shadow:0 10px 34px rgba(255,176,32,.42);
  filter:brightness(1.04);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(255,176,32,.3)}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--text-1);
  box-shadow:inset 0 0 0 1px rgba(47,168,255,.35),0 0 22px rgba(47,168,255,.16);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  padding:4px 0;
}
.btn-text svg{transition:transform .22s var(--ease)}
.btn-text:hover{color:var(--signal)}
.btn-text:hover svg{transform:translateX(4px)}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 12px;
  line-height:1.6;
}
.badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
  flex:none;
}
.badge.is-signal::before{background:var(--signal)}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:3px 11px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--text-1)}
.mono{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  min-height:clamp(320px,42vh,420px);
  display:flex;
  align-items:flex-end;
  padding:120px 0 48px;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.72) 0%,rgba(5,8,15,.86) 45%,var(--bg-0) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(120,160,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 40%,transparent 100%);
  mask-image:linear-gradient(180deg,transparent,#000 40%,transparent 100%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero::selection{background:rgba(255,176,32,.3)}
.hero-beam{
  position:absolute;
  left:32px;
  bottom:0;
  width:120px;
  height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  z-index:2;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:12px;
  color:var(--text-3);
  margin-bottom:20px;
  font-family:var(--font-num);
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(108,122,147,.6)}
.breadcrumb .current{color:var(--text-1)}
.page-hero h1{
  font-size:clamp(32px,4.4vw,52px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:.01em;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:18px;
  font-size:clamp(15px,1.5vw,17px);
  color:var(--text-2);
  max-width:640px;
}
.hero-meta{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  font-size:13px;
  color:var(--text-3);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta b{color:var(--text-1);font-weight:600;font-family:var(--font-num)}

/* ============ 筛选 chip ============ */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:36px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 16px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.chip:hover{color:var(--text-1);border-color:var(--line-strong);transform:translateY(-2px)}
.chip.is-selected{
  color:#0A1020;
  background:var(--brand);
  border-color:var(--brand);
  font-weight:600;
  box-shadow:0 6px 20px rgba(47,168,255,.24);
}
.chip.is-selected:hover{color:#0A1020;transform:translateY(-2px)}
.chip .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:currentColor;
  opacity:.7;
}

/* ============ 条目卡网格 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.entry-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,168,255,.3);
  box-shadow:0 26px 68px rgba(0,0,0,.5);
}
.entry-thumb{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-2);
}
.entry-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .3s var(--ease);
}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-thumb .num{
  position:absolute;
  top:12px;
  left:12px;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--text-1);
  background:rgba(5,8,15,.66);
  border:1px solid var(--line);
  border-radius:8px;
  padding:2px 8px;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.entry-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:20px 20px 18px;
}
.entry-body .badge{margin-bottom:14px;align-self:flex-start}
.entry-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.entry-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}
.entry-foot .time{display:inline-flex;align-items:center;gap:7px}
.entry-foot .go{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
}
.entry-foot .go svg{transition:transform .22s var(--ease)}
.entry-card:hover .entry-foot .go svg{transform:translateX(4px)}

/* ============ 核验流程 ============ */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step-card{
  position:relative;
  padding:28px 22px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.step-card:hover{border-color:rgba(255,176,32,.32);transform:translateY(-2px)}
.step-num{
  font-family:var(--font-num);
  font-size:28px;
  font-weight:600;
  line-height:1;
  background:linear-gradient(135deg,var(--brand),var(--signal));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:16px;
  display:block;
}
.step-card h3{font-size:16px;font-weight:600;margin-bottom:10px}
.step-card p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* ============ 类目说明 ============ */
.note-panel{
  border-radius:var(--r-bar);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,26,46,.7),rgba(10,16,32,.5));
  padding:clamp(28px,4vw,52px);
}
.note-panel h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:600;
  margin-bottom:20px;
}
.note-panel p{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  max-width:920px;
}
.note-panel p + p{margin-top:16px}
.note-list{
  margin-top:26px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px 28px;
}
.note-list li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  color:var(--text-2);
}
.note-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--brand);
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(47,168,255,.34)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
}
.faq-icon{
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  color:var(--brand);
  flex:none;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--brand)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  width:90%;
}

/* ============ 互链卡 ============ */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.cross-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  color:var(--text-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cross-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,168,255,.35);
  box-shadow:0 22px 56px rgba(0,0,0,.42);
  color:var(--text-1);
}
.cross-card .cross-num{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--signal);
}
.cross-card h3{font-size:17px;font-weight:600}
.cross-card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.cross-card .cross-go{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
}
.cross-card:hover .cross-go svg{transform:translateX(4px)}
.cross-card .cross-go svg{transition:transform .22s var(--ease)}
.cross-card.is-current{border-color:rgba(255,176,32,.4)}
.cross-card.is-current .cross-num{color:var(--brand)}

/* ============ CTA 条 ============ */
.cta-bar{
  border-radius:var(--r-bar);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(47,168,255,.12),rgba(255,176,32,.08) 70%,rgba(16,26,46,.6));
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  padding:40px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);font-weight:600;line-height:1.35}
.cta-bar p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:520px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.share-group{display:flex;align-items:center;gap:10px;padding-left:12px;border-left:1px solid var(--line)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(5,8,15,1));
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.8fr .9fr 1fr .9fr 1.1fr;
  gap:40px;
  padding:64px 0 48px;
}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:320px}
.footer-icons{display:flex;gap:10px}
.footer-col-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text-1);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-note{font-size:13px;line-height:1.8;color:var(--text-3)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-contact .kv{display:flex;gap:8px;align-items:baseline;font-size:13px;color:var(--text-3)}
.footer-contact .kv b{color:var(--text-2);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}
.to-top{
  width:40px;
  height:40px;
  border-radius:50%;
  display:grid;
  place-items:center;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{color:var(--signal);border-color:var(--signal);box-shadow:0 0 22px rgba(255,176,32,.28);transform:translateY(-2px)}

/* ============ 移动端抽屉 ============ */
.nav-overlay{
  position:fixed;
  inset:0;
  background:rgba(5,8,15,.7);
  z-index:130;
  opacity:0;
  visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.nav-overlay.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(88vw,380px);
  z-index:140;
  background:rgba(10,16,32,.96);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-left:1px solid var(--line);
  padding:20px 22px 32px;
  display:flex;
  flex-direction:column;
  gap:22px;
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  font-size:15px;
  color:var(--text-2);
  padding:12px 12px;
  border-radius:12px;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.drawer-nav a:hover{background:var(--glass);color:var(--text-1)}
.drawer-nav a.is-active{color:var(--text-1);background:var(--glass);font-weight:600}
.drawer-search{width:100%}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .entry-card:hover,.chip:hover,.btn:hover,.icon-btn:hover,.cross-card:hover,.step-card:hover{transform:none !important}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px}
  .command-search{width:220px}
}
@media (max-width:1023px){
  :root{--header-h:56px}
  .container{padding:0 20px}
  .main-nav{display:none}
  .command-search:not(.drawer-search){display:none}
  .header-actions .icon-btn{display:none}
  .nav-toggle{display:grid}
  .section{padding:72px 0}
  .section-sm{padding:56px 0}
  .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cross-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 0 36px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-bar{padding:32px}
  .note-list{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .page-hero{padding:104px 0 40px;min-height:clamp(300px,48vh,420px)}
  .entry-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .faq-a-inner{width:100%}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .share-group{border-left:0;padding-left:0;padding-top:6px}
  .hero-beam{left:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom .to-top{align-self:flex-end}
}
@media (max-width:575px){
  .brand-full{display:none}
  .brand-short{display:inline}
  .hero-meta{gap:8px 18px}
  .entry-body{padding:18px 16px 16px}
}

/* roulang page: category3 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#101A2E;
  --line:rgba(140,170,220,0.14);
  --line-strong:rgba(140,170,220,0.26);
  --glass:rgba(255,255,255,0.045);
  --glass-2:rgba(255,255,255,0.07);
  --brand:#2FA8FF;
  --brand-2:#6E8CFF;
  --signal:#FFB020;
  --signal-hover:#FFC24D;
  --text-1:#E8EEF9;
  --text-2:#A9B6CC;
  --text-3:#6C7A93;
  --ok:#34D399;
  --err:#FF6B6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-bar:20px;
  --shadow-card:0 20px 60px rgba(0,0,0,0.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,160,255,0.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,0.055) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(120% 80% at 50% 0%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0%,#000 0%,transparent 75%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
.section{padding:104px 0;position:relative;z-index:1}
.section-sm{padding:72px 0;position:relative;z-index:1}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:600;
  letter-spacing:.01em;
}
.section-head p{color:var(--text-2);font-size:14px;margin-top:10px;max-width:620px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-2);
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--signal);
  box-shadow:0 0 10px rgba(255,176,32,.8);
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:64px;
  background:transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.85);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);
  border:1px solid var(--line);
}
.brand-text{
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-short{display:none}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .22s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--signal));
  transition:width .22s var(--ease);
}
.nav-link:hover,.nav-link.is-active{color:var(--text-1)}
.nav-link:hover::after,.nav-link.is-active::after{width:16px}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:264px;height:40px;
  padding:0 12px;
  border-radius:var(--r-input);
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.command-search input{
  flex:1;min-width:0;
  background:transparent;border:0;outline:none;
  font-size:13px;color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search kbd{
  font-family:var(--font-num);
  font-size:11px;
  padding:2px 6px;
  border-radius:6px;
  border:1px solid var(--line);
  color:var(--text-3);
  background:rgba(255,255,255,.03);
}
.command-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,168,255,.18);
  background:rgba(255,255,255,.06);
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.icon-btn:hover{
  color:var(--text-1);
  border-color:var(--brand);
  box-shadow:inset 0 0 0 1px rgba(47,168,255,.25),0 0 18px rgba(47,168,255,.18);
  transform:translateY(-2px);
}
.icon-btn:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-1);
  cursor:pointer;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  cursor:pointer;border:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 16px;font-size:13px}
.btn-primary{
  background:var(--signal);
  color:#150C00;
  box-shadow:0 6px 24px rgba(255,176,32,.28);
}
.btn-primary:hover{
  background:var(--signal-hover);
  box-shadow:0 10px 34px rgba(255,176,32,.42);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--text-1);
  box-shadow:inset 0 0 24px rgba(47,168,255,.14);
  transform:translateY(-2px);
}
.btn-text{
  background:none;border:0;padding:0;height:auto;
  color:var(--brand);font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
}
.btn-text svg{transition:transform .22s var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-2);
  padding:5px 11px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  font-family:var(--font-num);
}
.badge::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);
}
.badge.is-signal::before{background:var(--signal);box-shadow:0 0 10px rgba(255,176,32,.7)}
.badge.is-plain::before{display:none}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;
  color:var(--text-2);
  padding:4px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--text-1)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--text-3);
  font-family:var(--font-num);
  letter-spacing:.06em;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(140,170,220,.4)}
.breadcrumb .cur{color:var(--text-1)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  min-height:clamp(320px,42vh,420px);
  display:flex;
  align-items:flex-end;
  padding:96px 0 56px;
  overflow:hidden;
  background-size:cover;
  background-position:center;
}
.page-hero.hero-access{background-image:url('/assets/images/backpic/back-2.webp')}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.55) 0%,rgba(5,8,15,.78) 45%,var(--bg-0) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-scan{
  position:absolute;
  left:0;bottom:0;
  width:120px;height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  z-index:2;
}
.page-hero h1{
  font-size:clamp(32px,4.4vw,52px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:.01em;
  margin:18px 0 14px;
  max-width:820px;
}
.page-hero .hero-sub{
  color:var(--text-2);
  font-size:16px;
  max-width:640px;
}
.hero-stat{
  display:flex;flex-wrap:wrap;gap:36px;
  margin-top:32px;
}
.hero-stat div{display:flex;flex-direction:column;gap:4px}
.hero-stat .num{
  font-family:var(--font-num);
  font-size:24px;font-weight:600;color:var(--text-1);
}
.hero-stat .lbl{font-size:12px;color:var(--text-3);letter-spacing:.08em}

/* ---------- panel / glass fallback ---------- */
.panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .panel{background:#0E1729}
  .site-header.is-scrolled{background:rgba(5,8,15,.96)}
}

/* ---------- brick wall ---------- */
.brick-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.brick-lead{
  grid-column:span 2;
  display:flex;flex-direction:column;
  overflow:hidden;
}
.brick-lead .thumb{
  aspect-ratio:21/9;
  overflow:hidden;
  border-radius:var(--r-img);
  margin:10px 10px 0;
  background:var(--bg-2);
}
.brick-lead .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s var(--ease);
}
.brick-lead:hover .thumb img{transform:scale(1.04)}
.brick-body{padding:22px 26px 26px}
.brick-body h3{
  font-size:19px;font-weight:600;line-height:1.4;
  margin:14px 0 12px;
}
.brick-body p{color:var(--text-2);font-size:14px;line-height:1.85}
.brick-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  margin-top:22px;padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
  font-family:var(--font-num);
}
.card{
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,168,255,.3);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.card .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  border-radius:var(--r-img);
  margin:10px 10px 0;
  background:var(--bg-2);
}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .thumb img{transform:scale(1.04)}
.card .body{padding:18px 22px 22px;display:flex;flex-direction:column;flex:1}
.card h3{
  font-size:17px;font-weight:600;line-height:1.5;
  margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card p{
  color:var(--text-2);font-size:14px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card .meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  margin-top:auto;padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
  font-family:var(--font-num);
}
.card .meta .left{display:inline-flex;align-items:center;gap:7px}
.text-row{
  grid-column:span 1;
  display:flex;align-items:flex-start;gap:16px;
  padding:24px 26px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.text-row.wide{grid-column:span 2}
.text-row:hover{border-color:rgba(47,168,255,.3);transform:translateX(4px)}
.text-row .idx{
  font-family:var(--font-num);
  font-size:13px;color:var(--text-3);
  padding-top:3px;
}
.text-row:hover .idx{color:var(--brand)}
.text-row h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.text-row p{color:var(--text-2);font-size:14px}
.text-row .arrow{margin-left:auto;color:var(--text-3);flex:0 0 auto}
.text-row:hover .arrow{color:var(--brand)}

/* ---------- notice strips ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;
  border-radius:var(--r-input);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  font-size:14px;
  color:var(--text-2);
  margin-top:24px;
}
.notice.warn{border-left-color:var(--signal)}
.notice.err{border-left-color:var(--err)}

/* ---------- prose ---------- */
.prose{max-width:820px}
.prose h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:600;
  margin:0 0 18px;
  position:relative;
  padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:4px;height:18px;border-radius:2px;background:var(--brand);
}
.prose p{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:18px}
.prose p:last-child{margin-bottom:0}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.cross-card{
  padding:28px 26px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.cross-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.3)}
.cross-card h3{font-size:17px;font-weight:600}
.cross-card p{color:var(--text-2);font-size:14px}
.cross-card .go{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:13px;font-weight:600;
}
.cross-card.is-current{border-color:rgba(255,176,32,.4)}
.cross-card.is-current .go{color:var(--signal)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{overflow:hidden}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;
  background:transparent;border:0;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
  cursor:pointer;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .sign{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:transform .3s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.is-open .faq-q .sign{transform:rotate(180deg);color:var(--signal);border-color:rgba(255,176,32,.5)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a .inner{
  padding:0 26px 24px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  max-width:90%;
  border-top:1px solid var(--line);
  padding-top:18px;
  margin:0 26px 24px;
}
.faq-item.is-open{border-color:rgba(47,168,255,.28)}

/* ---------- CTA ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 48px;
  border-radius:var(--r-bar);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);font-weight:600;margin-bottom:10px}
.cta-bar p{color:var(--text-2);font-size:14px}
.cta-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.share-group{display:flex;align-items:center;gap:10px;padding-left:12px;border-left:1px solid var(--line)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:120px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(5,8,15,1));
  padding:72px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand p{color:var(--text-2);font-size:14px;margin:18px 0 20px;max-width:320px}
.footer-icons{display:flex;gap:10px}
.footer-col-title{
  font-size:13px;font-weight:600;
  color:var(--text-1);
  letter-spacing:.1em;
  margin-bottom:18px;
  font-family:var(--font-num);
}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--text-2);font-size:14px;transition:color .22s var(--ease)}
.footer-links a:hover{color:var(--brand)}
.footer-links li span{color:var(--text-3);font-size:14px}
.footer-note{color:var(--text-3);font-size:13px;line-height:1.9}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
  flex-wrap:wrap;
}
.to-top{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;
  transition:color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{color:var(--signal);box-shadow:0 0 22px rgba(255,176,32,.28);transform:translateY(-2px)}

/* ---------- skeleton / empty / error ---------- */
.skeleton-card{padding:10px 10px 20px}
.sk-img{
  aspect-ratio:16/9;border-radius:var(--r-img);
  background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.1),rgba(255,255,255,.05));
  background-size:200% 100%;
  animation:shimmer 1.4s infinite linear;
}
.sk-line{
  height:12px;border-radius:6px;margin:16px 12px 0;
  background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.1),rgba(255,255,255,.05));
  background-size:200% 100%;
  animation:shimmer 1.4s infinite linear;
}
.sk-line.short{width:45%}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:56px 24px;text-align:center;
  color:var(--text-2);
}
.empty-state svg{color:var(--text-3)}
.empty-state p{font-size:14px}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:80;
  background:rgba(5,8,15,.7);
  opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:min(86vw,360px);
  background:var(--bg-1);
  border-left:1px solid var(--line);
  padding:22px 22px 32px;
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer .command-search{width:100%;margin-bottom:22px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;
  color:var(--text-2);font-size:15px;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--glass);color:var(--text-1);border-color:var(--line)}
.drawer .btn{width:100%}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .command-search{width:220px}
  .main-nav{gap:22px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .command-search{display:none}
  .nav-toggle{display:inline-flex}
  .site-header,.header-inner{height:56px}
  .section{padding:80px 0}
  .brick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .brick-lead{grid-column:span 2}
  .text-row.wide{grid-column:span 2}
  .cross-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:span 3}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:24px;padding:32px}
  .cta-actions{width:100%;flex-wrap:wrap}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-sm{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .page-hero{padding:72px 0 40px;min-height:clamp(320px,52vh,420px)}
  .hero-stat{gap:24px;margin-top:24px}
  .hero-stat .num{font-size:20px}
  .brick-grid{grid-template-columns:1fr;gap:18px}
  .brick-lead{grid-column:span 1}
  .text-row.wide{grid-column:span 1}
  .card .thumb,.brick-lead .thumb{margin:8px 8px 0}
  .brand-full{display:none}
  .brand-short{display:inline}
  .brand-text{font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:32px}
  .footer-brand{grid-column:span 1;padding-bottom:24px}
  .site-footer{padding-top:48px;margin-top:80px}
  .footer-col{border-top:1px solid var(--line)}
  .footer-col-title{
    margin:0;padding:18px 0;
    display:flex;align-items:center;justify-content:space-between;
    cursor:pointer;
  }
  .footer-col-title::after{
    content:"+";
    font-family:var(--font-num);
    color:var(--text-3);
    transition:transform .22s var(--ease);
  }
  .footer-col.is-open .footer-col-title::after{transform:rotate(45deg);color:var(--signal)}
  .footer-col.is-open .footer-links,.footer-col.is-open .footer-note{padding-bottom:22px}
  .footer-col .footer-links,.footer-col .footer-note{display:none}
  .footer-col.is-open .footer-links{display:flex}
  .footer-col.is-open .footer-note{display:block}
  .footer-col.is-static .footer-links,.footer-col.is-static .footer-note{display:flex}
  .footer-col.is-static .footer-note{display:block}
  .faq-q{padding:18px 20px;font-size:15px}
  .faq-a .inner{margin:0 20px 20px;padding-top:16px}
  .cta-bar{padding:26px 22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .share-group{padding-left:0;border-left:0;justify-content:center;padding-top:8px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:575px){
  .page-hero h1{font-size:30px}
  .brick-body{padding:18px 20px 22px}
  .card .body{padding:16px 18px 18px}
  .text-row{padding:20px}
  .cta-actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
  .card:hover,.text-row:hover,.btn:hover,.icon-btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#101A2E;
  --line:rgba(140,170,220,.14);
  --glass:rgba(255,255,255,.045);
  --brand:#2FA8FF;
  --brand-2:#6E8CFF;
  --signal:#FFB020;
  --signal-h:#FFC24D;
  --text-1:#E8EEF9;
  --text-2:#A9B6CC;
  --text-3:#6C7A93;
  --ok:#34D399;
  --err:#FF6B6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-bar:20px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"Inter","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.01em;line-height:1.3}
h1{font-size:clamp(32px,4.4vw,52px);line-height:1.15}
h2{font-size:clamp(22px,2.6vw,32px)}
h3{font-size:19px}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(47,168,255,.32);color:#fff}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),opacity .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px}
.btn-primary{
  background:var(--signal);
  color:#1A1206;
  box-shadow:0 6px 24px rgba(255,176,32,.28);
}
.btn-primary:hover{background:var(--signal-h);box-shadow:0 10px 34px rgba(255,176,32,.42);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(255,176,32,.32)}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--brand);box-shadow:inset 0 0 0 1px rgba(47,168,255,.28),0 0 22px rgba(47,168,255,.18);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  transition:color .22s var(--ease);
}
.btn-text svg{transition:transform .22s var(--ease)}
.btn-text:hover{color:var(--signal-h)}
.btn-text:hover svg{transform:translateX(4px)}

.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.icon-btn:hover{color:var(--text-1);border-color:var(--brand);box-shadow:0 0 20px rgba(47,168,255,.22);transform:translateY(-2px)}
.icon-btn:active{transform:translateY(0)}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 12px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-2);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(47,168,255,.8)}
.badge.signal .dot{background:var(--signal);box-shadow:0 0 10px rgba(255,176,32,.8)}

.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:12px;
  color:var(--text-3);
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.tag:hover{color:var(--text-2);border-color:rgba(140,170,220,.3)}

.panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
@supports not (backdrop-filter: blur(1px)){
  .panel{background:#0E1729}
  .site-header.is-scrolled{background:#0A1020}
  .mobile-drawer{background:#0A1020}
}

.section{padding:104px 0}
.section-tight{padding:76px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head .lead{max-width:640px}
.section-desc{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-3);
  margin-bottom:16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 12px rgba(255,176,32,.9)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:64px;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.85);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(47,168,255,.18),rgba(255,176,32,.14));
}
.brand-text{font-size:16px;font-weight:600;color:var(--text-1);letter-spacing:.01em}
.brand-short{display:none}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--signal));
  transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:16px}
.nav-link.is-active{color:var(--text-1)}
.nav-link.is-active::after{width:16px}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:270px;
  height:40px;
  padding:0 12px;
  border-radius:var(--r-btn);
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),width .22s var(--ease);
}
.command-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,168,255,.18);
}
.command-search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  font-size:13px;
  color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search kbd{
  font-family:var(--font-mono);
  font-size:11px;
  padding:2px 6px;
  border-radius:6px;
  border:1px solid var(--line);
  color:var(--text-3);
}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
}
.nav-toggle:hover{color:var(--text-1);border-color:var(--brand)}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(5,8,15,.7);
  backdrop-filter:blur(2px);
  opacity:0;
  pointer-events:none;
  transition:opacity .24s var(--ease);
  z-index:70;
}
.drawer-overlay.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:min(360px,86vw);
  background:#0A1020;
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  z-index:80;
  padding:22px 22px 32px;
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:12px 4px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--text-1);padding-left:8px}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  min-height:clamp(320px,42vh,420px);
  display:flex;
  align-items:flex-end;
  padding:120px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.42;
  transform:scale(1.02);
}
.page-hero .hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.55) 0%,rgba(5,8,15,.86) 58%,var(--bg-0) 100%);
}
.page-hero .hero-lines{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(120,160,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.055) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.page-hero .hero-scan{
  position:absolute;
  left:32px;
  bottom:86px;
  width:120px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(47,168,255,0));
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-3);transition:color .22s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--text-1)}
.page-hero h1{margin-bottom:16px}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:620px;
  line-height:1.85;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}

/* ---------- 编号清单 ---------- */
.entry-list{padding:10px 24px}
.entry-row{
  display:grid;
  grid-template-columns:76px 200px minmax(0,1fr);
  gap:24px;
  align-items:flex-start;
  padding:26px 12px 26px 6px;
  border-top:1px solid var(--line);
  border-radius:14px;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.entry-row:first-child{border-top:0}
.entry-row:last-child{border-bottom:0}
.entry-row:hover{background:rgba(47,168,255,.05);transform:translateX(4px)}
.entry-no{
  font-family:var(--font-mono);
  font-size:28px;
  line-height:1;
  color:var(--text-3);
  padding-top:2px;
  transition:color .22s var(--ease);
}
.entry-row:hover .entry-no{color:var(--brand)}
.entry-thumb{
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:200/130;
  background:var(--bg-2);
  border:1px solid var(--line);
}
.entry-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.entry-row:hover .entry-thumb img{transform:scale(1.04)}
.entry-body h3{font-size:17px;margin-bottom:8px}
.entry-body p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:760px}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- 数据面板 ---------- */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.stat-card{
  padding:26px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-card:hover{border-color:rgba(47,168,255,.34);transform:translateY(-2px);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.stat-num{
  font-family:var(--font-mono);
  font-size:34px;
  line-height:1.1;
  color:var(--text-1);
}
.stat-num span{font-size:14px;color:var(--text-3);margin-left:6px;font-family:var(--font-cn)}
.stat-label{margin-top:10px;font-size:14px;color:var(--text-1)}
.stat-note{margin-top:6px;font-size:13px;color:var(--text-3);line-height:1.7}
.stat-bar{height:3px;border-radius:3px;background:rgba(140,170,220,.16);margin-top:16px;overflow:hidden}
.stat-bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--brand),var(--signal))}

/* ---------- 阅读路径 ---------- */
.path-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  position:relative;
}
.path-card{
  position:relative;
  padding:28px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.path-card:hover{transform:translateY(-2px);border-color:rgba(255,176,32,.34)}
.path-step{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--signal);
  margin-bottom:14px;
}
.path-card h3{font-size:17px;margin-bottom:8px}
.path-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- 类目说明 ---------- */
.notes-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:start;
}
.notes-copy p{
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
  margin-bottom:20px;
}
.notes-copy p strong{color:var(--text-1);font-weight:600}
.notes-aside{
  padding:28px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.notes-aside h3{font-size:17px;margin-bottom:14px}
.notes-aside ul{display:flex;flex-direction:column;gap:12px}
.notes-aside li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
}
.notes-aside li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:2px;
  background:var(--brand);
}

/* ---------- 关联分类 ---------- */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.cross-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px 24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cross-card:hover{transform:translateY(-2px);border-color:rgba(47,168,255,.36);box-shadow:0 18px 44px rgba(0,0,0,.42)}
.cross-card h3{font-size:17px}
.cross-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.cross-more{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--brand);
}
.cross-card:hover .cross-more svg{transform:translateX(4px)}
.cross-more svg{transition:transform .22s var(--ease)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-item:hover{border-color:rgba(140,170,220,.28)}
.faq-item.is-open{border-color:rgba(47,168,255,.34)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:22px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);
  transition:transform .26s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  width:90%;
  padding:0 24px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:44px 48px;
  border-radius:var(--r-bar);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.cta-bar::before{
  content:"";
  position:absolute;
  left:0;top:0;
  width:180px;height:2px;
  background:linear-gradient(90deg,var(--brand),rgba(47,168,255,0));
}
.cta-bar h2{margin-bottom:10px}
.cta-bar p{font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,.5),rgba(5,8,15,.9));
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-bottom:52px;
}
.footer-brand{grid-column:span 2}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:340px;
}
.footer-icons{display:flex;gap:10px;margin-top:20px}
.footer-col-title{
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-3);
  font-family:var(--font-mono);
  font-weight:500;
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.footer-links a:hover{color:var(--brand);padding-left:4px}
.footer-text{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:12px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{color:var(--signal-h);border-color:var(--signal);box-shadow:0 0 22px rgba(255,176,32,.28);transform:translateY(-2px)}

/* ---------- 骨架 / 空态 ---------- */
.skeleton{
  border-radius:var(--r-card);
  background:linear-gradient(90deg,rgba(255,255,255,.05) 25%,rgba(255,255,255,.09) 37%,rgba(255,255,255,.05) 63%);
  background-size:400% 100%;
  animation:shimmer 1.4s ease infinite;
}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:56px 20px;
  color:var(--text-3);
  font-size:14px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .path-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .command-search{width:40px;padding:0;justify-content:center}
  .command-search input,.command-search kbd{display:none}
  .header-actions .btn-primary{display:none}
  .header-actions .icon-btn{display:none}
  .notes-grid{grid-template-columns:1fr;gap:32px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .path-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cross-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-brand{grid-column:span 2}
  .section{padding:80px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .page-hero{padding:104px 0 44px}
  .page-hero .hero-scan{left:20px;bottom:70px}
  .entry-list{padding:6px 16px}
  .entry-row{grid-template-columns:1fr;gap:14px;padding:22px 6px}
  .entry-no{font-size:20px;padding-top:0}
  .entry-thumb{aspect-ratio:16/9}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .path-grid{grid-template-columns:1fr;gap:16px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand{grid-column:span 1}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .brand-full{display:none}
  .brand-short{display:inline}
}
@media (max-width:520px){
  h1{font-size:28px}
  .hero-facts{gap:8px}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a p{padding:0 18px 20px;width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
  .entry-row:hover{transform:none}
}