/* roulang page: index */
:root{
  --bg-base:#050A16;
  --bg-1:#0A1224;
  --bg-2:#0E1A31;
  --glass:rgba(255,255,255,.055);
  --glass-line:rgba(160,190,255,.16);
  --brand:#2F6BFF;
  --brand-2:#5B93FF;
  --accent:#B4FF3A;
  --accent-2:#FF7A2F;
  --text-1:#F2F6FF;
  --text-2:#A9B8D6;
  --text-3:#6C7C9C;
  --ok:#38D39F;
  --err:#FF5D5D;
  --r-card:18px;
  --r-img:14px;
  --r-tag:6px;
  --r-btn:12px;
  --sh-1:0 10px 30px rgba(3,10,30,.35);
  --sh-2:0 18px 48px rgba(3,10,30,.55);
  --glow-brand:0 0 24px rgba(47,107,255,.45);
  --glow-accent:0 0 20px rgba(180,255,58,.35);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;--sp-10:120px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg-base);color:var(--text-1);
  font-family:var(--font-cn);font-size:16px;line-height:1.9;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(180,255,58,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:576px){.container{padding:0 32px}}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 通用元素 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.eyebrow::before{content:"";width:16px;height:2px;background:linear-gradient(90deg,var(--accent),rgba(180,255,58,0));box-shadow:var(--glow-accent);border-radius:2px}
.section{padding:96px 0;position:relative}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:575px){.section{padding:56px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;margin-top:12px;letter-spacing:-.01em}
.section-head .head-desc{max-width:420px;color:var(--text-2);font-size:14px;line-height:1.8}
.grid-lines::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(to right,rgba(160,190,255,.7) 1px,transparent 1px),linear-gradient(to bottom,rgba(160,190,255,.7) 1px,transparent 1px);
  background-size:40px 40px;
}
.glass{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.08);
}
.topline{position:relative;overflow:hidden}
.topline::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent) 55%,rgba(180,255,58,0))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.btn-primary{background:var(--accent);color:#08121F;box-shadow:var(--glow-accent),inset 0 0 0 2px rgba(255,255,255,.28)}
.btn-primary:hover{filter:brightness(1.07);box-shadow:0 0 30px rgba(180,255,58,.5),inset 0 0 0 2px rgba(255,255,255,.32)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--glass-line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand-2);box-shadow:0 0 18px rgba(47,107,255,.35)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600}
.btn-text .arr{transition:transform .2s ease}
.btn-text:hover .arr{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:7px 10px;border-radius:var(--r-tag);background:rgba(255,255,255,.06);border:1px solid var(--glass-line);color:var(--text-2)}
.badge-accent{color:var(--accent);border-color:rgba(180,255,58,.38)}
.badge-brand{color:var(--brand-2);border-color:rgba(91,147,255,.38)}
.badge-warn{color:var(--accent-2);border-color:rgba(255,122,47,.35)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:600;height:64px;
  background:rgba(5,10,22,.72);border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(6,12,26,.9);border-bottom-color:var(--glass-line);box-shadow:0 12px 30px rgba(3,10,30,.5);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.header-inner{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;max-width:240px;flex:0 0 auto}
.brand-mark{width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;border-radius:9px;background:linear-gradient(140deg,rgba(47,107,255,.35),rgba(180,255,58,.18));border:1px solid var(--glass-line);box-shadow:var(--glow-brand)}
.brand-text{display:flex;flex-direction:column;line-height:1.15;overflow:hidden}
.brand-main{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:10px;color:var(--text-3);letter-spacing:.08em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;min-width:0}
.nav-link{position:relative;padding:8px 12px;font-size:14.5px;color:var(--text-2);border-radius:8px;transition:color .2s ease}
.nav-link:hover{color:var(--text-1)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--accent);box-shadow:var(--glow-accent)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-box{position:relative;display:flex;align-items:center;width:220px;height:40px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--glass-line);transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease}
.search-box svg{margin-left:14px;flex:0 0 16px;stroke:var(--text-3)}
.search-box input{width:100%;height:100%;padding:0 16px 0 10px;background:none;border:0;outline:none;font-size:14px;color:var(--text-1)}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--brand-2);box-shadow:0 0 18px rgba(47,107,255,.4);transform:scale(1.015)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--glass-line);background:rgba(255,255,255,.05);place-items:center}
.menu-toggle svg{stroke:var(--text-1)}
@media (max-width:1023px){
  .main-nav,.search-box,.header-actions .btn-ghost{display:none}
  .menu-toggle{display:grid}
  .brand{max-width:200px}
}
@media (max-width:575px){
  .site-header{height:56px}
  .header-inner{height:56px;gap:12px}
  .brand-main{font-size:13.5px}
  .brand-sub{display:none}
  .header-actions .btn-primary{height:36px;padding:0 14px;font-size:13px}
}
/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(3,8,18,.72);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:700}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:800;background:var(--bg-1);border-left:1px solid var(--glass-line);transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--glass-line);display:grid;place-items:center}
.drawer .nav-link{display:block;padding:14px 12px;border-left:3px solid transparent;border-radius:0 8px 8px 0;font-size:15px}
.drawer .nav-link.is-active{border-left-color:var(--accent);background:rgba(180,255,58,.06)}
.drawer-search{margin:16px 0;width:100%}
.drawer-actions{display:grid;gap:10px;margin-top:auto}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 0;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center right;opacity:.5}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#050A16 8%,rgba(5,10,22,.86) 42%,rgba(5,10,22,.35) 100%)}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;z-index:1;
  background-image:linear-gradient(to right,rgba(160,190,255,.8) 1px,transparent 1px),linear-gradient(to bottom,rgba(160,190,255,.8) 1px,transparent 1px);
  background-size:40px 40px;
}
.hero-arc{position:absolute;right:-120px;bottom:-90px;width:620px;height:620px;opacity:.22;pointer-events:none;z-index:1}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding-bottom:64px}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:700;margin:18px 0 18px;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:520px}
.hero-cta{display:flex;gap:14px;margin:32px 0 28px;flex-wrap:wrap}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-2);position:relative}
.hero-media img{width:100%;height:320px;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,22,.1),rgba(5,10,22,.72))}
.hero-card{position:relative;margin-top:-72px;margin-left:24px;margin-right:24px;padding:22px 24px;z-index:3}
.hero-card h3{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:14px}
.hero-metric{display:flex;align-items:baseline;justify-content:space-between;font-size:14px;color:var(--text-2);padding:7px 0}
.hero-metric b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:17px;color:var(--text-1);font-weight:700}
.hero-metric b span{color:var(--accent);font-size:12px;margin-left:4px}
.progress-track{height:6px;border-radius:999px;background:rgba(255,255,255,.09);overflow:hidden;margin-top:14px}
.progress-fill{height:100%;width:78%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:var(--glow-accent)}
.hero-stats{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--glass-line);border-bottom:1px solid var(--glass-line);background:rgba(255,255,255,.02)}
.hero-stat{padding:22px 20px;text-align:center;border-right:1px solid var(--glass-line)}
.hero-stat:last-child{border-right:0}
.hero-stat b{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;line-height:1.2}
.hero-stat b i{font-style:normal;font-size:14px;color:var(--accent);margin-left:3px}
.hero-stat span{font-size:13px;color:var(--text-3)}
@media (max-width:1023px){
  .hero{padding-top:44px}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-bottom:44px}
  .hero-media img{height:250px}
  .hero-card{margin-top:-56px;margin-left:0;margin-right:0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stat:nth-child(2){border-right:0}
  .hero-stat:nth-child(-n+2){border-bottom:1px solid var(--glass-line)}
}
@media (max-width:575px){
  .hero-cta .btn{width:100%}
  .hero-stat{padding:16px 10px}
  .hero-stat b{font-size:23px}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;height:44px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{margin:0 8px;color:var(--text-3)}
.breadcrumb .cur{color:var(--text-3)}

/* ---------- 卖点错位网格 ---------- */
.feature-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px}
.card{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.08);transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(180,255,58,.3);box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.1)}
.feature-main{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;padding:0}
.feature-main .fm-body{padding:32px 30px;display:flex;flex-direction:column;justify-content:center}
.feature-main .fm-media{position:relative;overflow:hidden;min-height:100%}
.feature-main .fm-media img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .4s ease}
.feature-main:hover .fm-media img{transform:scale(1.04)}
.feature-main h3{font-size:22px;font-weight:700;margin:14px 0 12px}
.feature-main p{color:var(--text-2);font-size:14.5px;line-height:1.85}
.feature-side{display:grid;gap:24px}
.feature-mini{padding:26px}
.feature-mini .mini-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:rgba(47,107,255,.14);border:1px solid var(--glass-line);margin-bottom:16px}
.feature-mini h3{font-size:17px;font-weight:600;margin-bottom:8px}
.feature-mini p{font-size:14px;color:var(--text-2);line-height:1.8}
@media (max-width:1023px){
  .feature-grid{grid-template-columns:1fr}
  .feature-main{grid-template-columns:1fr}
  .feature-main .fm-media{order:-1;min-height:220px}
  .feature-main .fm-media img{min-height:220px}
}
@media (max-width:575px){.feature-main .fm-body{padding:22px 20px}}

/* ---------- 场景演示 ---------- */
.scene-tabs{display:flex;gap:8px;margin-bottom:32px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.scene-tabs::-webkit-scrollbar{display:none}
.scene-tab{padding:12px 20px;border-radius:10px 10px 0 0;font-size:14.5px;color:var(--text-2);border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s ease,border-color .2s ease,background .2s ease}
.scene-tab:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.scene-tab.is-active{color:var(--text-1);font-weight:600;border-bottom-color:var(--accent);box-shadow:0 8px 20px -14px var(--accent)}
.scene-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.device-frame{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-2);background:var(--bg-2)}
.device-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid var(--glass-line);background:rgba(255,255,255,.03)}
.dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.16)}
.dot.a{background:rgba(255,122,47,.6)}
.dot.b{background:rgba(180,255,58,.6)}
.device-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.steps{position:relative;padding-left:8px}
.steps::before{content:"";position:absolute;left:23px;top:14px;bottom:14px;width:1px;background:linear-gradient(180deg,rgba(180,255,58,.5),rgba(160,190,255,.12))}
.step{position:relative;display:flex;gap:20px;padding:16px 0}
.step-num{flex:0 0 46px;height:46px;border-radius:14px;display:grid;place-items:center;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:16px;font-weight:700;color:var(--accent);background:var(--bg-2);border:1px solid var(--glass-line);position:relative;z-index:1}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}
@media (max-width:1023px){
  .scene-grid{grid-template-columns:1fr;gap:32px}
  .steps{display:grid;grid-template-columns:repeat(3,minmax(240px,1fr));gap:16px;overflow-x:auto;padding:0 0 8px}
  .steps::before{display:none}
  .step{display:block;padding:0}
  .step-num{margin-bottom:12px}
}

/* ---------- 资讯列表 ---------- */
.news-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;align-items:start}
.news-main{overflow:hidden;padding:0}
.news-main .nm-media{position:relative;overflow:hidden}
.news-main .nm-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.news-main:hover .nm-media img{transform:scale(1.04)}
.news-main .nm-body{padding:26px 28px 30px}
.news-main h3{font-size:20px;font-weight:700;line-height:1.5;margin:14px 0 10px}
.news-main h3 a:hover{color:var(--accent)}
.news-main p{font-size:14.5px;color:var(--text-2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-3);margin-top:16px}
.news-side{display:grid;gap:14px}
.news-item{display:flex;gap:16px;padding:16px;align-items:center}
.news-item img{width:80px;height:80px;flex:0 0 80px;border-radius:12px;object-fit:cover}
.news-item h4{font-size:15px;font-weight:600;line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item h4 a:hover{color:var(--accent)}
.news-item .ni-meta{font-size:12.5px;color:var(--text-3);display:flex;gap:12px;flex-wrap:wrap}
.empty-state{padding:56px 24px;text-align:center;display:grid;justify-items:center;gap:16px}
.empty-state svg{stroke:var(--accent)}
.empty-state p{color:var(--text-2);font-size:14.5px}
@media (max-width:1023px){.news-layout{grid-template-columns:1fr}}
@media (max-width:575px){.news-main .nm-body{padding:20px}}

/* ---------- 社会认同 ---------- */
.proof-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--glass-line);border:1px solid var(--glass-line);border-radius:var(--r-card);overflow:hidden;margin-bottom:36px}
.proof-cell{background:var(--bg-1);padding:26px 20px;text-align:center}
.proof-cell b{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:28px;font-weight:700;line-height:1.2}
.proof-cell b i{font-style:normal;font-size:13px;color:var(--accent);margin-left:2px}
.proof-cell span{font-size:13px;color:var(--text-3)}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{padding:26px}
.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:17px;color:#08121F;background:linear-gradient(140deg,var(--accent),#63c400)}
.avatar.b{background:linear-gradient(140deg,var(--brand-2),#1f45b8);color:#fff}
.avatar.c{background:linear-gradient(140deg,var(--accent-2),#d4510f);color:#fff}
.quote-head strong{display:block;font-size:15px;font-weight:600}
.quote-head small{color:var(--text-3);font-size:12.5px}
.quote-card p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.stars{display:flex;gap:3px;margin-top:14px}
.stars svg{width:14px;height:14px;fill:var(--accent)}
.partner-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.partner{width:112px;height:44px;border-radius:10px;border:1px solid var(--glass-line);background:rgba(255,255,255,.03);display:grid;place-items:center;font-size:12px;color:var(--text-3);letter-spacing:.06em}
@media (max-width:1023px){
  .proof-band{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--glass-line)}
.faq-item{border-bottom:1px solid var(--glass-line);position:relative}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:0;background:var(--accent);transition:width .25s ease;box-shadow:var(--glow-accent)}
.faq-item.is-open::before{width:3px}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:24px 0 24px 18px;font-size:16.5px;font-weight:600;color:var(--text-1)}
.faq-icon{flex:0 0 26px;color:var(--accent);transition:transform .28s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 40px 24px 18px;color:var(--text-2);font-size:14.5px;line-height:1.9}
@media (max-width:575px){.faq-q{font-size:15.5px;padding:20px 0 20px 14px}.faq-a p{padding:0 12px 20px 14px}}

/* ---------- 分类入口 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.cat-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.cat-card:hover img{transform:scale(1.04)}
.cat-card .cat-body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto}
.cat-card h3{font-size:18px;font-weight:700;margin:14px 0 10px}
.cat-card p{font-size:14px;color:var(--text-2);line-height:1.8;flex:1 1 auto}
.cat-card .btn-text{margin-top:18px}
@media (max-width:1023px){.cat-grid{grid-template-columns:1fr}}

/* ---------- 底部 CTA ---------- */
.cta-board{position:relative;overflow:hidden;padding:48px;border-radius:24px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;background:linear-gradient(120deg,rgba(47,107,255,.16),rgba(180,255,58,.07) 70%,rgba(5,10,22,0));border:1px solid var(--glass-line);box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.1)}
.cta-board::before{content:"";position:absolute;inset:0;opacity:.06;background-image:linear-gradient(to right,rgba(160,190,255,.8) 1px,transparent 1px),linear-gradient(to bottom,rgba(160,190,255,.8) 1px,transparent 1px);background-size:40px 40px;pointer-events:none}
.cta-board h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;margin-bottom:12px}
.cta-board p{color:var(--text-2);font-size:15px;max-width:520px}
.cta-board .cta-actions{display:flex;gap:14px;justify-content:flex-end;flex-wrap:wrap;position:relative;z-index:1}
@media (max-width:1023px){.cta-board{grid-template-columns:1fr;padding:32px}.cta-board .cta-actions{justify-content:flex-start}}
@media (max-width:575px){.cta-board{padding:24px}.cta-board .cta-actions .btn{width:100%}}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-1);border-top:1px solid var(--glass-line);padding:64px 0 120px;margin-top:0;overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(180,255,58,.6),rgba(47,107,255,.6),transparent)}
.footer-arc{position:absolute;right:-140px;bottom:-160px;width:520px;height:520px;opacity:.14;pointer-events:none}
.footer-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;margin:16px 0 20px;max-width:320px}
.social-row{display:flex;gap:10px}
.social-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--glass-line);background:rgba(255,255,255,.04);display:grid;place-items:center;transition:border-color .2s ease,transform .2s ease}
.social-btn:hover{border-color:var(--brand-2);transform:translateY(-2px)}
.social-btn svg{stroke:var(--text-2)}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:18px;letter-spacing:.04em}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--accent)}
.footer-col .info-line{font-size:13.5px;color:var(--text-2)}
.footer-bottom{position:relative;z-index:1;margin-top:44px;padding-top:22px;border-top:1px solid var(--glass-line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding:52px 0 110px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;height:64px;z-index:500;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0 24px;background:rgba(8,14,28,.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-top:1px solid var(--glass-line);box-shadow:0 -8px 30px rgba(3,10,30,.5);
  opacity:0;visibility:hidden;transform:translateY(100%);transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.sticky-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.sticky-bar .sb-text{font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:10px;min-width:0}
.sticky-bar .sb-text strong{color:var(--text-1);font-weight:600}
.sticky-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.sticky-close{width:34px;height:34px;border-radius:9px;border:1px solid var(--glass-line);display:grid;place-items:center;color:var(--text-3)}
.sticky-close:hover{color:var(--text-1)}
@media (max-width:767px){
  .sticky-bar{height:56px;padding:0 12px 0 16px;padding-bottom:env(safe-area-inset-bottom)}
  .sticky-bar .sb-text{display:none}
  .sticky-bar .btn-primary{flex:1 1 auto}
}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:20px;bottom:88px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(10,18,36,.85);border:1px solid var(--glass-line);backdrop-filter:blur(14px);box-shadow:var(--sh-1);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s ease;z-index:490}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--accent);box-shadow:var(--glow-accent)}
.to-top svg{stroke:var(--text-1)}

/* ---------- 滚动进视 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .34s ease,transform .34s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .btn:hover,.card:hover{transform:none}
}

/* roulang page: article */
:root{
  --bg-base:#050A16;
  --bg-1:#0A1224;
  --bg-2:#0E1A31;
  --glass:rgba(255,255,255,.055);
  --glass-line:rgba(160,190,255,.16);
  --brand:#2F6BFF;
  --brand-2:#5B93FF;
  --accent:#B4FF3A;
  --accent-2:#FF7A2F;
  --text-1:#F2F6FF;
  --text-2:#A9B8D6;
  --text-3:#6C7C9C;
  --ok:#38D39F;
  --err:#FF5D5D;
  --r-card:18px;
  --r-img:14px;
  --r-tag:6px;
  --r-btn:12px;
  --sh-1:0 10px 30px rgba(3,10,30,.35);
  --sh-2:0 18px 48px rgba(3,10,30,.55);
  --glow:0 0 24px rgba(47,107,255,.45);
  --glow-lime:0 0 20px rgba(180,255,58,.35);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:76px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text-1);
  background:
    radial-gradient(1000px 600px at 82% -6%,rgba(47,107,255,.18),transparent 62%),
    radial-gradient(700px 500px at 6% 8%,rgba(180,255,58,.06),transparent 60%),
    var(--bg-base);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--text-1);text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease);}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:576px){.container{padding:0 32px;}}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ========== 顶部阅读进度 ========== */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  box-shadow:0 0 14px rgba(180,255,58,.5);
  z-index:1200;
}

/* ========== 导航 ========== */
.site-header{
  position:sticky;top:0;z-index:1100;
  background:rgba(5,10,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,10,22,.92);
  border-bottom-color:var(--glass-line);
  box-shadow:0 8px 30px rgba(3,10,30,.5);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;max-width:240px;}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;
  border-radius:9px;
  background:linear-gradient(140deg,rgba(47,107,255,.4),rgba(180,255,58,.18));
  border:1px solid var(--glass-line);
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-main{font-size:15px;font-weight:700;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-sub{font-size:11px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.main-nav{display:none;align-items:center;gap:4px;flex:1;}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--text-2);white-space:nowrap;
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);box-shadow:var(--glow-lime);
}
.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-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-box{
  position:relative;display:none;align-items:center;
  width:220px;height:38px;padding:0 12px;gap:8px;
  border-radius:10px;border:1px solid var(--glass-line);
  background:var(--glass);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.search-box:focus-within{border-color:var(--brand-2);box-shadow:var(--glow);transform:scale(1.02);}
.search-box svg{flex:0 0 16px;stroke:var(--text-3);}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;font-size:13.5px;color:var(--text-1);
}
.search-box input::placeholder{color:var(--text-3);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;letter-spacing:.3px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(0) scale(.99);}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#d5ff7a);
  color:#08130A;
  box-shadow:var(--glow-lime),inset 0 0 0 2px rgba(255,255,255,.28);
}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 0 30px rgba(180,255,58,.5),inset 0 0 0 2px rgba(255,255,255,.3);color:#08130A;}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--glass-line);
  color:var(--text-1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.btn-ghost:hover{border-color:var(--brand-2);transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--text-1);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.btn-block{width:100%;}
.nav-toggle{
  display:grid;place-items:center;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--glass-line);background:var(--glass);
}
.nav-toggle svg{stroke:var(--text-1);}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .search-box{display:flex;}
  .nav-toggle{display:none;}
  .header-inner{height:68px;}
  .brand{max-width:250px;}
}

/* ========== 移动抽屉 ========== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,16,.68);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:1140;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:340px;
  background:linear-gradient(180deg,var(--bg-1),var(--bg-base));
  border-left:1px solid var(--glass-line);
  transform:translateX(102%);transition:transform .34s var(--ease);
  z-index:1150;padding:20px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--glass-line);background:var(--glass);display:grid;place-items:center;}
.drawer-list{margin-bottom:22px;}
.drawer-list li{margin-bottom:6px;}
.drawer-list a{
  display:block;padding:12px 14px;font-size:15px;color:var(--text-2);
  border-left:3px solid transparent;border-radius:0 8px 8px 0;background:rgba(255,255,255,.02);
}
.drawer-list a:hover,.drawer-list a.is-active{border-left-color:var(--accent);color:var(--text-1);background:var(--glass);}
.drawer-search{display:flex;width:100%;margin-bottom:18px;}
.drawer-actions{display:flex;flex-direction:column;gap:10px;}

/* ========== 面包屑 ========== */
.crumb-bar{border-bottom:1px solid rgba(160,190,255,.08);background:rgba(10,18,36,.5);}
.crumb-inner{
  display:flex;align-items:center;gap:8px;height:44px;font-size:13px;color:var(--text-3);
  overflow-x:auto;white-space:nowrap;scrollbar-width:none;
}
.crumb-inner::-webkit-scrollbar{display:none;}
.crumb-inner a{color:var(--text-2);}
.crumb-inner a:hover{color:var(--accent);}
.crumb-sep{color:var(--text-3);opacity:.7;}
.crumb-current{color:var(--text-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;}

/* ========== 文章布局 ========== */
.article-section{padding:36px 0 80px;}
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 312px;gap:44px;align-items:start;}
}
.article-main{min-width:0;}

/* 文章头 */
.post-head{margin-bottom:30px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  font-size:12px;line-height:1;border-radius:var(--r-tag);
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-2);
}
.badge-lime{border-color:rgba(180,255,58,.5);color:var(--accent);background:rgba(180,255,58,.08);}
.badge-orange{border-color:rgba(255,122,47,.45);color:var(--accent-2);background:rgba(255,122,47,.08);}
.post-title{
  margin:18px 0 16px;
  font-size:clamp(26px,4.4vw,40px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.2px;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13.5px;color:var(--text-3);
}
.post-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.post-meta .meta-item i{color:var(--brand-2);font-size:13px;}
.share-row{display:flex;align-items:center;gap:9px;margin-left:auto;}
.share-btn{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.share-btn:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent);box-shadow:var(--glow-lime);}
.post-cover{
  margin:26px 0 0;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--glass-line);box-shadow:var(--sh-1);
  background:linear-gradient(140deg,rgba(47,107,255,.2),rgba(5,10,22,.9));
}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figcaption{padding:10px 16px;font-size:12.5px;color:var(--text-3);border-top:1px solid rgba(160,190,255,.1);background:rgba(255,255,255,.02);}

/* 正文排版 */
.post-body{
  margin-top:34px;
  font-size:16px;line-height:1.95;color:#DCE5F7;
  word-break:break-word;
}
.post-body > * + *{margin-top:1.35em;}
.post-body p{color:#D3DEF3;}
.post-body h2{
  position:relative;margin-top:52px;margin-bottom:16px;padding-left:14px;
  font-size:clamp(21px,2.6vw,27px);line-height:1.4;font-weight:700;color:var(--text-1);
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.16em;width:3px;border-radius:2px;
  background:var(--accent);box-shadow:var(--glow-lime);
}
.post-body h3{
  margin-top:34px;margin-bottom:12px;font-size:19px;font-weight:600;color:var(--text-1);
}
.post-body h4{margin-top:26px;margin-bottom:10px;font-size:17px;font-weight:600;color:var(--text-1);}
.post-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.post-body a:hover{color:#d5ff7a;}
.post-body strong{color:var(--text-1);font-weight:700;}
.post-body ul,.post-body ol{margin-top:1.1em;padding-left:4px;}
.post-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.post-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(180,255,58,.6);
}
.post-body ol{counter-reset:num;}
.post-body ol li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:num;}
.post-body ol li::before{
  content:counter(num);position:absolute;left:0;top:.34em;
  width:22px;height:22px;border-radius:6px;display:grid;place-items:center;
  font-size:12px;font-weight:700;color:var(--accent);
  background:rgba(180,255,58,.1);border:1px solid rgba(180,255,58,.32);
  font-family:var(--mono);
}
.post-body blockquote{
  margin:1.6em 0;padding:18px 20px;border-radius:0 var(--r-img) var(--r-img) 0;
  border-left:3px solid var(--accent);
  background:var(--glass);color:var(--text-2);font-style:normal;
}
.post-body blockquote p{color:var(--text-2);}
.post-body img{border-radius:var(--r-img);margin:1.6em 0;box-shadow:var(--sh-1);border:1px solid var(--glass-line);}
.post-body figure{margin:1.6em 0;}
.post-body figure figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.post-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(160,190,255,.35),transparent);margin:2.4em 0;}
.post-body code{
  font-family:var(--mono);font-size:.9em;padding:2px 7px;border-radius:6px;
  background:rgba(47,107,255,.14);border:1px solid rgba(91,147,255,.28);color:#CFE0FF;
}
.post-body pre{
  overflow-x:auto;padding:18px;border-radius:var(--r-img);
  background:rgba(6,12,26,.92);border:1px solid var(--glass-line);
}
.post-body pre code{background:none;border:0;padding:0;color:#CFE0FF;}
.post-body table{
  width:100%;border-collapse:collapse;font-size:14.5px;
  border:1px solid var(--glass-line);border-radius:var(--r-img);overflow:hidden;
}
.post-body thead th{
  background:rgba(255,255,255,.06);text-align:left;font-weight:600;color:var(--text-1);
}
.post-body th,.post-body td{padding:11px 14px;border-bottom:1px solid rgba(160,190,255,.12);}
.post-body tbody tr:nth-child(even){background:rgba(255,255,255,.025);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.post-body .table-scroll table{min-width:520px;}

/* 空态 */
.empty-state{
  margin-top:34px;padding:64px 24px;text-align:center;
  border-radius:var(--r-card);border:1px solid var(--glass-line);
  background:var(--glass);box-shadow:var(--sh-1);
}
.empty-state svg{margin:0 auto 18px;stroke:var(--accent);}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* 标签行 */
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(160,190,255,.12);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  font-size:12.5px;color:var(--text-2);border-radius:999px;
  border:1px solid var(--glass-line);background:var(--glass);
  transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.tag:hover{color:var(--accent);border-color:rgba(180,255,58,.45);transform:translateY(-2px);}

/* 上一篇下一篇 */
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:26px;}
@media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr;}}
.post-nav-card{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  border:1px solid var(--glass-line);background:var(--glass);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.post-nav-card:hover{transform:translateY(-4px);border-color:var(--brand-2);box-shadow:var(--sh-2);}
.post-nav-label{font-size:12px;color:var(--text-3);letter-spacing:.6px;margin-bottom:6px;display:block;}
.post-nav-card strong{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.6;display:block;}
.post-nav-card.is-next{text-align:right;}

/* 作者卡 */
.author-card{
  display:flex;gap:16px;align-items:flex-start;margin-top:34px;padding:22px;
  border-radius:var(--r-card);border:1px solid var(--glass-line);
  background:linear-gradient(140deg,rgba(47,107,255,.12),rgba(255,255,255,.03));
  box-shadow:var(--sh-1);
}
.avatar{
  width:52px;height:52px;flex:0 0 52px;border-radius:50%;display:grid;place-items:center;
  font-weight:700;font-size:18px;color:#08130A;
  background:linear-gradient(135deg,var(--accent),#7ddc2b);
  box-shadow:var(--glow-lime);
}
.author-card h4{font-size:15.5px;margin-bottom:4px;}
.author-card p{font-size:13.5px;color:var(--text-2);line-height:1.8;}

/* ========== 侧栏 ========== */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0;}
@media (min-width:1024px){
  .article-side{position:sticky;top:96px;}
}
.widget{
  padding:20px;border-radius:var(--r-card);border:1px solid var(--glass-line);
  background:var(--glass);box-shadow:var(--sh-1);
}
.widget-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.widget-head::before{content:"";width:16px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:var(--glow-lime);}
.widget-head h3{font-size:14px;font-weight:700;letter-spacing:.4px;}
.toc-list{max-height:320px;overflow-y:auto;}
.toc-list a{
  display:block;padding:8px 10px;font-size:13.5px;color:var(--text-2);
  border-left:2px solid rgba(160,190,255,.18);border-radius:0 8px 8px 0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.toc-list a.is-active{color:var(--accent);border-left-color:var(--accent);background:rgba(180,255,58,.07);}
.toc-list a.level-3{padding-left:22px;font-size:13px;}
.toc-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;font-size:14px;font-weight:700;}
.toc-toggle i{transition:transform .3s var(--ease);color:var(--accent);}
.toc-toggle[aria-expanded="true"] i{transform:rotate(180deg);}
@media (min-width:1024px){.toc-toggle{display:none;}.toc-list{max-height:none;}}
@media (max-width:1023px){
  .toc-widget .toc-list{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);margin-top:0;}
  .toc-widget.is-open .toc-list{max-height:520px;margin-top:14px;overflow-y:auto;}
}
.hot-list li + li{border-top:1px solid rgba(160,190,255,.1);}
.hot-list a{display:flex;gap:12px;padding:12px 4px;font-size:14px;color:var(--text-2);line-height:1.65;}
.hot-list a:hover{color:var(--text-1);}
.hot-index{font-family:var(--mono);font-size:13px;color:var(--accent);flex:0 0 18px;padding-top:2px;}
.cloud{display:flex;flex-wrap:wrap;gap:9px;}
.widget-cta{
  background:linear-gradient(150deg,rgba(47,107,255,.22),rgba(180,255,58,.07)),var(--bg-2);
  text-align:center;
}
.widget-cta p{font-size:13.5px;color:var(--text-2);margin:10px 0 16px;}

/* ========== 相关推荐 ========== */
.related-section{padding:0 0 90px;}
.section-head{display:flex;align-items:flex-end;gap:16px;margin-bottom:28px;flex-wrap:wrap;}
.section-head .label{font-size:12px;color:var(--accent);letter-spacing:1.4px;display:flex;align-items:center;gap:10px;}
.section-head .label::before{content:"";width:16px;height:2px;background:var(--accent);border-radius:2px;box-shadow:var(--glow-lime);}
.section-head h2{font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:700;flex:1 1 auto;margin-top:8px;width:100%;}
.section-head .text-link{margin-left:auto;}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:767px){
  .related-grid{grid-auto-flow:column;grid-auto-columns:82%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
  .related-grid > *{scroll-snap-align:start;}
}
.card{
  border-radius:var(--r-card);border:1px solid var(--glass-line);
  background:var(--glass);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
  display:flex;flex-direction:column;
  position:relative;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));opacity:.85;
}
.card:hover{transform:translateY(-4px);border-color:var(--brand-2);box-shadow:var(--sh-2);}
.card-media{overflow:hidden;aspect-ratio:16/10;background:var(--bg-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:16.5px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-text{font-size:13.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--text-3);margin-top:auto;}

/* ========== CTA 大板 ========== */
.cta-band{
  position:relative;overflow:hidden;padding:56px 0;
  border-top:1px solid rgba(160,190,255,.12);
  border-bottom:1px solid rgba(160,190,255,.12);
  background:
    linear-gradient(rgba(160,190,255,.05) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(90deg,rgba(160,190,255,.05) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(140deg,rgba(47,107,255,.16),rgba(5,10,22,.6));
}
.cta-inner{
  position:relative;z-index:2;display:flex;flex-direction:column;gap:24px;
  align-items:flex-start;
}
@media (min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;}}
.cta-inner h2{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;margin-bottom:10px;}
.cta-inner p{font-size:14.5px;color:var(--text-2);max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ========== 页脚 ========== */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--glass-line);
  padding:64px 0 0;
}
.footer-arc{
  position:absolute;right:-160px;bottom:-200px;width:600px;height:600px;
  opacity:.16;pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:34px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.9;margin:16px 0 18px;max-width:320px;}
.social-row{display:flex;gap:10px;}
.social-btn{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.social-btn svg{stroke:currentColor;}
.social-btn:hover{transform:translateY(-3px);border-color:var(--accent);color:var(--accent);box-shadow:var(--glow-lime);}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:13.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);}
.footer-note{font-size:13.5px;color:var(--text-3);line-height:1.9;}
.footer-bottom{
  position:relative;z-index:2;margin-top:48px;padding:20px 0 26px;
  border-top:1px solid rgba(160,190,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}

/* ========== 底部固定转化条 ========== */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1090;
  height:76px;
  display:flex;align-items:center;
  background:rgba(6,12,26,.9);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-top:1px solid rgba(160,190,255,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 -10px 30px rgba(3,10,30,.5);
  transform:translateY(110%);
  transition:transform .36s var(--ease),opacity .36s var(--ease);
  opacity:0;
  padding-bottom:env(safe-area-inset-bottom);
}
.bottom-bar.is-visible{transform:translateY(0);opacity:1;}
.bottom-bar-inner{
  width:100%;max-width:1200px;margin:0 auto;padding:0 20px;
  display:flex;align-items:center;gap:14px;
}
@media (min-width:576px){.bottom-bar-inner{padding:0 32px;}}
.bottom-text{display:none;font-size:14px;color:var(--text-2);flex:1;min-width:0;}
.bottom-text strong{color:var(--text-1);}
@media (min-width:768px){.bottom-text{display:block;}}
.bottom-actions{display:flex;align-items:center;gap:10px;width:100%;}
@media (min-width:768px){.bottom-actions{width:auto;}.bottom-bar .btn-primary{min-width:150px;}}
.bottom-bar .btn-primary{flex:1;}
.bottom-close{
  width:34px;height:34px;flex:0 0 34px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-3);
}
.bottom-close:hover{color:var(--text-1);border-color:var(--brand-2);}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:96px;z-index:1080;
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--glass-line);background:rgba(10,18,36,.86);
  color:var(--text-2);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  backdrop-filter:blur(10px);
}
.to-top.is-visible{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);border-color:var(--accent);color:var(--accent);box-shadow:var(--glow-lime);}

/* 文字链接 */
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);}
.text-link svg{transition:transform .24s var(--ease);stroke:var(--accent);}
.text-link:hover svg{transform:translateX(4px);}

/* 滚动动效 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg-base:#050A16;
  --bg-1:#0A1224;
  --bg-2:#0E1A31;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.075);
  --glass-line:rgba(160,190,255,.16);
  --glass-line-strong:rgba(160,190,255,.32);
  --brand:#2F6BFF;
  --brand-2:#5B93FF;
  --accent:#B4FF3A;
  --accent-2:#FF7A2F;
  --text-1:#F2F6FF;
  --text-2:#A9B8D6;
  --text-3:#6C7C9C;
  --ok:#38D39F;
  --err:#FF5D5D;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-tag:6px;
  --sh-1:0 10px 30px rgba(3,10,30,.35);
  --sh-2:0 18px 48px rgba(3,10,30,.55);
  --glow-brand:0 0 24px rgba(47,107,255,.45);
  --glow-accent:0 0 20px rgba(180,255,58,.35);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:120px;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
svg{display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:rgba(180,255,58,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:576px){.container{padding:0 32px}}
@media (min-width:1200px){.container{padding:0 24px}}
@media (min-width:1440px){.container{max-width:1280px}}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,10,22,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(160,190,255,.08);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,30,.92);
  border-bottom-color:var(--glass-line);
  box-shadow:0 12px 32px rgba(3,10,30,.55);
}
.header-inner{
  height:64px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;max-width:240px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(47,107,255,.35),rgba(180,255,58,.18));
  border:1px solid var(--glass-line);
  box-shadow:var(--glow-brand);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-main{font-size:14px;font-weight:700;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:14px;color:var(--text-2);
  border-radius:8px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--accent));
  border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
  box-shadow:0 0 10px rgba(180,255,58,.6);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-shell{
  position:relative;display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  border-radius:999px;background:var(--glass);
  border:1px solid var(--glass-line);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.search-shell svg{stroke:var(--text-3);flex-shrink:0}
.search-shell:focus-within{
  border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,107,255,.18),var(--glow-brand);
  transform:scale(1.02);
}
.search-input{
  width:100%;background:transparent;border:0;outline:none;
  font-size:13px;color:var(--text-1);
}
.search-input::placeholder{color:var(--text-3)}
.nav-toggle{display:none}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--glass-line-strong);color:var(--text-1);transform:translateY(-1px)}
.icon-btn svg{stroke:currentColor}

/* ===== 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;letter-spacing:.2px;
  border:1px solid transparent;white-space:nowrap;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease,color .2s ease;
}
.btn svg{stroke:currentColor}
.btn-primary{
  background:linear-gradient(180deg,#C6FF60,#A6F229);
  color:#0A1224;border-color:rgba(255,255,255,.4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55),var(--glow-accent);
}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 0 30px rgba(180,255,58,.5)}
.btn-ghost{
  background:var(--glass);color:var(--text-1);border-color:var(--glass-line);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:var(--brand-2);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;padding:0;
}
.btn-text svg{stroke:var(--accent);transition:transform .2s ease}
.btn-text:hover svg{transform:translateX(4px)}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.btn-lg{height:52px;padding:0 26px;font-size:15px}
.btn-block{width:100%}
.btn:active{transform:translateY(0) scale(.99)}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== breadcrumb ===== */
.breadcrumb-bar{border-bottom:1px solid rgba(160,190,255,.07);background:rgba(10,18,36,.5)}
.breadcrumb{
  display:flex;align-items:center;gap:8px;height:44px;
  font-size:13px;color:var(--text-3);overflow:hidden;white-space:nowrap;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-3)}

/* ===== category hero ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  border-bottom:1px solid rgba(160,190,255,.08);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(5,10,22,.94) 0%,rgba(5,10,22,.78) 45%,rgba(5,10,22,.45) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(160,190,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(160,190,255,.06) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:840px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;margin-bottom:18px;border-radius:var(--r-tag);
  font-size:12px;letter-spacing:.6px;color:var(--accent);
  background:rgba(180,255,58,.08);border:1px solid rgba(180,255,58,.3);
}
.hero-badge::before{content:"";width:16px;height:1px;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.cat-hero h1{
  font-size:clamp(28px,4.6vw,48px);
  line-height:1.15;font-weight:700;letter-spacing:-.4px;
  margin-bottom:16px;
}
.hero-sub{font-size:16px;color:var(--text-2);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--glass-line);padding-top:22px;
}
.hero-meta li{
  display:flex;flex-direction:column;gap:2px;
  padding:0 28px;
  border-left:1px solid var(--glass-line);
}
.hero-meta li:first-child{padding-left:0;border-left:0}
.hero-meta strong{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;line-height:1.2;color:var(--text-1);
}
.hero-meta span{font-size:12.5px;color:var(--text-3);letter-spacing:.3px}

/* ===== sections ===== */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--bg-1);border-top:1px solid rgba(160,190,255,.07);border-bottom:1px solid rgba(160,190,255,.07)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.sec-label{
  display:flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:1.4px;color:var(--accent);text-transform:uppercase;
  margin-bottom:12px;
}
.sec-label::before{
  content:"";width:16px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--accent));
  box-shadow:0 0 10px rgba(180,255,58,.7);
}
.sec-title{font-size:clamp(23px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.3px}
.sec-note{font-size:14px;color:var(--text-3);max-width:340px;text-align:right;padding-bottom:6px}
.prose p{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:20px;max-width:820px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--text-1);font-weight:600}

/* ===== feature grid 2x3 ===== */
.feature-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.glass-card{
  position:relative;overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-1);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:.7;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:var(--glass-line-strong);
  background:var(--glass-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--sh-2);
}
.feature-card{padding:26px 24px 24px;display:flex;flex-direction:column;gap:12px}
.icon-badge{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(47,107,255,.28),rgba(180,255,58,.14));
  border:1px solid var(--glass-line);
}
.icon-badge svg{stroke:var(--accent);stroke-width:1.7;fill:none}
.card-title{font-size:17.5px;font-weight:700;line-height:1.4}
.card-text{font-size:14px;color:var(--text-2);line-height:1.85}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-tag);font-size:12px;letter-spacing:.2px;
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);color:var(--text-2);
}
.tag.is-blue{color:#BFD4FF;border-color:rgba(91,147,255,.34);background:rgba(47,107,255,.12)}
.tag.is-lime{color:#D7FF8C;border-color:rgba(180,255,58,.32);background:rgba(180,255,58,.1)}
.tag.is-orange{color:#FFC79B;border-color:rgba(255,122,47,.32);background:rgba(255,122,47,.1)}

/* ===== prep panel ===== */
.prep-panel{
  margin-top:56px;padding:0;overflow:hidden;
}
.prep-grid{align-items:center;margin:0}
.prep-grid > .cell{padding:0}
.prep-media{position:relative}
.prep-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0;
}
.prep-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,10,22,.85),rgba(5,10,22,.1) 60%,rgba(5,10,22,.45));
}
.prep-frame{
  position:absolute;inset:18px;border:1px solid var(--glass-line);border-radius:var(--r-img);
  pointer-events:none;
}
.prep-body{padding:32px 28px}
.prep-body h3{font-size:20px;font-weight:700;margin-bottom:10px}
.prep-body > p{color:var(--text-2);font-size:14.5px;margin-bottom:20px}
.check-list{display:flex;flex-direction:column;gap:2px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 12px;border-bottom:1px solid rgba(160,190,255,.09);
  position:relative;transition:background .2s ease;
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:var(--glass-line);transition:background .2s ease,box-shadow .2s ease;
}
.check-list li:hover{background:rgba(255,255,255,.035)}
.check-list li:hover::before{background:var(--accent);box-shadow:0 0 12px rgba(180,255,58,.6)}
.check-list svg{stroke:var(--ok);flex-shrink:0;margin-top:6px}
.check-list b{font-size:14.5px;font-weight:600;display:block}
.check-list span{font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ===== faq ===== */
.faq-list{border-top:1px solid rgba(160,190,255,.12)}
.faq-item{border-bottom:1px solid rgba(160,190,255,.12);position:relative}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:transparent;transition:background .25s ease,box-shadow .25s ease;
}
.faq-item.is-open::before{background:var(--accent);box-shadow:0 0 14px rgba(180,255,58,.55)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 12px 22px 18px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .2s ease,padding-left .2s ease;
}
.faq-q:hover{color:var(--accent)}
.faq-item.is-open .faq-q{color:var(--accent)}
.faq-icon{
  width:28px;height:28px;flex-shrink:0;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-line);background:var(--glass);
  transition:transform .28s ease,border-color .28s ease;
}
.faq-icon svg{stroke:var(--accent);stroke-width:2}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(180,255,58,.4)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a-inner{padding:0 18px 24px;color:var(--text-2);font-size:14.5px;line-height:1.9;max-width:760px}

/* ===== cta panel ===== */
.cta-panel{
  position:relative;overflow:hidden;
  padding:48px 44px;border-radius:22px;
  background:linear-gradient(120deg,rgba(47,107,255,.16),rgba(10,18,36,.72) 55%,rgba(180,255,58,.08));
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--sh-2);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  backdrop-filter:blur(18px);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(160,190,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(160,190,255,.06) 1px,transparent 1px);
  background-size:40px 40px;opacity:.6;pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:10px;letter-spacing:-.2px}
.cta-copy p{color:var(--text-2);font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ===== footer ===== */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--glass-line);
  padding:72px 0 0;
  margin-top:8px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-2),var(--accent),transparent);
  opacity:.8;
}
.footer-arc{
  position:absolute;right:-160px;bottom:-220px;width:600px;height:600px;
  opacity:.11;pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px 32px;
}
.footer-brand p{color:var(--text-2);font-size:14px;margin:18px 0 22px;max-width:360px}
.social-row{display:flex;gap:10px}
.social-btn{
  width:38px;height:38px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-line);background:var(--glass);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.social-btn svg{stroke:var(--text-2);fill:none}
.social-btn:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 0 18px rgba(180,255,58,.22)}
.social-btn:hover svg{stroke:var(--accent)}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:18px;letter-spacing:.4px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:13.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--accent)}
.footer-col li span{font-size:13.5px;color:var(--text-3)}
.footer-bottom{
  position:relative;z-index:2;
  margin-top:56px;padding:22px 0 100px;
  border-top:1px solid rgba(160,190,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--accent)}

/* ===== sticky bar ===== */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  height:64px;
  transform:translateY(110%);
  opacity:0;pointer-events:none;
  transition:transform .34s ease,opacity .34s ease;
  background:rgba(10,18,36,.9);
  backdrop-filter:blur(18px);
  border-top:1px solid var(--glass-line);
  box-shadow:0 -10px 32px rgba(3,10,30,.5);
}
.sticky-bar.is-visible{transform:translateY(0);opacity:1;pointer-events:auto}
.sticky-inner{height:100%;display:flex;align-items:center;gap:20px;justify-content:space-between}
.sticky-text{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-2);min-width:0}
.sticky-text b{color:var(--text-1);font-weight:600}
.dot-live{
  width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0;
  box-shadow:0 0 12px rgba(180,255,58,.8);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}
.sticky-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.sticky-close{
  width:32px;height:32px;border-radius:8px;display:none;
  align-items:center;justify-content:center;
  border:1px solid var(--glass-line);background:var(--glass);
}
.sticky-close svg{stroke:var(--text-3)}

/* ===== to top ===== */
.to-top{
  position:fixed;right:24px;bottom:88px;z-index:54;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);box-shadow:var(--sh-1);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .28s ease,transform .28s ease,border-color .28s ease;
}
.to-top.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.to-top:hover{border-color:var(--accent);transform:translateY(-3px)}
.to-top svg{stroke:var(--accent)}

/* ===== drawer ===== */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(3,7,16,.68);backdrop-filter:blur(3px);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:71;
  width:84vw;max-width:360px;
  background:var(--bg-1);border-left:1px solid var(--glass-line);
  transform:translateX(101%);transition:transform .32s ease;
  padding:22px 22px 32px;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-list{display:flex;flex-direction:column;gap:6px}
.drawer-list a{
  position:relative;padding:14px 12px 14px 16px;border-radius:10px;
  font-size:15px;color:var(--text-2);border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.drawer-list a::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:transparent;transition:background .2s ease;
}
.drawer-list a:hover,.drawer-list a.is-active{background:rgba(255,255,255,.045);color:var(--text-1)}
.drawer-list a.is-active::before{background:var(--accent);box-shadow:0 0 10px rgba(180,255,58,.6)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.drawer-search{width:100%}

/* ===== reveal ===== */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .34s ease,transform .34s ease}
.reveal.is-in{opacity:1;transform:none}

/* ===== responsive ===== */
@media (max-width:1199px){
  .feature-grid{gap:20px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px 28px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .search-shell{display:none}
  .nav-toggle{display:flex}
  .header-inner{gap:12px}
  .section{padding:72px 0}
  .section.tight{padding:56px 0}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sec-note{display:none}
  .cta-panel{padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 24px}
  .prep-body{padding:28px 24px}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85}
  .header-inner{height:56px}
  .brand-main{font-size:13px;max-width:44vw}
  .brand-sub{display:none}
  .brand{max-width:48vw}
  .cat-hero{padding:44px 0 40px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:0;flex-wrap:wrap;row-gap:18px}
  .hero-meta li{padding:0 20px 0 18px}
  .hero-meta li:first-child{padding-left:0}
  .hero-meta strong{font-size:22px}
  .feature-grid{grid-template-columns:1fr;gap:16px}
  .glass-card:hover{transform:none}
  .cta-panel{padding:30px 22px;flex-direction:column;align-items:flex-start;gap:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{padding-bottom:120px;flex-direction:column;align-items:flex-start;gap:12px}
  .sticky-bar{height:56px;padding-bottom:env(safe-area-inset-bottom)}
  .sticky-text span{display:none}
  .sticky-actions{flex:1}
  .sticky-actions .btn-primary{flex:1}
  .sticky-actions .btn-ghost{display:none}
  .sticky-close{display:flex}
  .to-top{right:16px;bottom:72px;width:40px;height:40px}
  .faq-q{font-size:15px;padding:18px 8px 18px 14px}
  .faq-a-inner{padding:0 14px 20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:30px}
}
@media (max-width:575px){
  .container{padding:0 20px}
  .prep-media img{aspect-ratio:16/12}
  .prep-frame{display:none}
  .footer-col h4{margin-bottom:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg-base:#050A16;
  --bg-1:#0A1224;
  --bg-2:#0E1A31;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.075);
  --glass-line:rgba(160,190,255,.16);
  --brand:#2F6BFF;
  --brand-2:#5B93FF;
  --accent:#B4FF3A;
  --accent-2:#FF7A2F;
  --text-1:#F2F6FF;
  --text-2:#A9B8D6;
  --text-3:#6C7C9C;
  --ok:#38D39F;
  --err:#FF5D5D;
  --r-card:18px;
  --r-img:14px;
  --r-tag:6px;
  --r-btn:12px;
  --sh-1:0 10px 30px rgba(3,10,30,.35);
  --sh-2:0 18px 48px rgba(3,10,30,.55);
  --glow:0 0 24px rgba(47,107,255,.45);
  --glow-lime:0 0 20px rgba(180,255,58,.35);
  --container:1200px;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"SFMono-Regular","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(47,107,255,.20),transparent 62%),
    radial-gradient(760px 460px at 96% 6%,rgba(180,255,58,.07),transparent 60%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;color:var(--text-1)}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:clamp(19px,2vw,23px);font-weight:700}
h4{font-size:17px;font-weight:600}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1}
section{position:relative}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(5,10,22,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(5,10,22,.9);
  border-bottom-color:var(--glass-line);
  box-shadow:0 8px 30px rgba(3,10,30,.55);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  max-width:240px;
  flex:0 0 auto;
}
.brand-mark{
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg,rgba(47,107,255,.35),rgba(180,255,58,.18));
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 18px rgba(47,107,255,.35);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-main{font-size:14px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.6px;white-space:nowrap}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  position:relative;
  padding:20px 12px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:12px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:var(--glow-lime);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.nav-search:hover{border-color:rgba(91,147,255,.45)}
.nav-search:focus-within{
  border-color:var(--brand-2);
  box-shadow:0 0 0 3px rgba(47,107,255,.18),var(--glow);
  transform:scale(1.02);
}
.nav-search svg{stroke:var(--text-3);flex:0 0 auto}
.nav-search input{
  width:100%;
  height:36px;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:14px;
  outline:none;
}
.nav-search input::placeholder{color:var(--text-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-size:14.5px;
  font-weight:600;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .18s ease;
}
.btn:active{transform:translateY(0) scale(.99)}
.btn-primary{
  background:var(--accent);
  color:#08131F;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.22),var(--glow-lime);
}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:inset 0 0 0 2px rgba(255,255,255,.28),0 0 30px rgba(180,255,58,.5)}
.btn-ghost{
  background:var(--glass);
  border-color:var(--glass-line);
  color:var(--text-1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.btn-ghost:hover{border-color:var(--brand-2);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-lg{height:52px;padding:0 26px;font-size:15.5px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  font-size:14px;
  font-weight:600;
}
.btn-text svg{transition:transform .2s ease;stroke:var(--accent)}
.btn-text:hover svg{transform:translateX(4px)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--glass-line);
  background:var(--glass);
  align-items:center;
  justify-content:center;
}
.nav-toggle svg{stroke:var(--text-1)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(3,7,18,.68);
  backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;
  z-index:95;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:84vw;
  max-width:360px;
  height:100%;
  padding:22px 20px 32px;
  background:linear-gradient(180deg,#0A1224,#050A16);
  border-left:1px solid var(--glass-line);
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.3,.8,.3,1);
  z-index:96;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--glass-line);background:var(--glass);display:grid;place-items:center}
.drawer-list{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.drawer-list a{
  position:relative;
  padding:13px 14px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(160,190,255,.09);
}
.drawer-list a::before{
  content:"";
  position:absolute;left:0;top:12px;bottom:12px;
  width:3px;border-radius:2px;
  background:transparent;
  transition:background .2s ease;
}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--text-1)}
.drawer-list a.is-active::before,.drawer-list a:hover::before{background:var(--accent);box-shadow:var(--glow-lime)}
.drawer-actions{display:flex;flex-direction:column;gap:10px}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  height:44px;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  border-bottom:1px solid rgba(160,190,255,.08);
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-3)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid rgba(160,190,255,.1);
  background:
    linear-gradient(100deg,rgba(5,10,22,.94) 0%,rgba(5,10,22,.74) 46%,rgba(5,10,22,.42) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(160,190,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,190,255,.05) 1px,transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:2px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 55%,transparent 100%);
  opacity:.85;
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  padding:64px 0 56px;
  max-width:760px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  letter-spacing:1.4px;
  color:var(--accent);
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:16px;height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:var(--glow-lime);
}
.cat-hero h1{margin-bottom:16px}
.cat-hero .lead{
  font-size:16.5px;
  color:var(--text-2);
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:30px;
  padding:0 12px;
  border-radius:var(--r-tag);
  background:var(--glass);
  border:1px solid var(--glass-line);
  font-size:12.5px;
  color:var(--text-2);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:var(--glow-lime)}
.chip .dot.blue{background:var(--brand-2);box-shadow:var(--glow)}
.chip .dot.orange{background:var(--accent-2)}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head .label{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  letter-spacing:1.4px;
  color:var(--accent);
  margin-bottom:12px;
}
.section-head .label::before{
  content:"";
  width:16px;height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:var(--glow-lime);
}
.section-head p{color:var(--text-2);font-size:14.5px;max-width:520px;margin:10px 0 0}
.lead-text{color:var(--text-2);font-size:16px;max-width:820px}

/* ---------- 介绍区 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:24px;
  align-items:start;
}
.glass{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-1);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.intro-main{padding:30px 32px}
.intro-main p:last-child{margin-bottom:0}
.fact-card{padding:24px 26px}
.fact-card h4{margin-bottom:16px;font-size:15px;color:var(--text-2);letter-spacing:.6px;font-weight:600}
.fact-item{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px dashed rgba(160,190,255,.14);
  font-size:14px;
  color:var(--text-2);
}
.fact-item:last-child{border-bottom:0;padding-bottom:0}
.fact-item b{font-family:var(--mono);font-size:17px;color:var(--accent);font-weight:700}
.fact-item span.v{color:var(--text-1);font-weight:600}

/* ---------- 交替图文行 ---------- */
.alt-rows{display:flex;flex-direction:column;gap:28px}
.alt-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--sh-1);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.alt-row:hover{border-color:rgba(91,147,255,.42);transform:translateY(-4px);box-shadow:var(--sh-2)}
.alt-row__media{position:relative;min-height:280px;overflow:hidden}
.alt-row__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.alt-row:hover .alt-row__media img{transform:scale(1.04)}
.alt-row__media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,22,.05),rgba(5,10,22,.55));
}
.alt-row__body{padding:32px 34px;display:flex;flex-direction:column;justify-content:center}
.alt-row__body h3{margin:14px 0 12px}
.alt-row__body p{color:var(--text-2);font-size:15px;margin-bottom:18px}
.alt-row.reverse .alt-row__media{order:2}
.alt-row.reverse .alt-row__body{order:1}
.tag{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-tag);
  font-size:12px;
  letter-spacing:.6px;
  background:rgba(47,107,255,.14);
  border:1px solid rgba(91,147,255,.35);
  color:#BBD1FF;
}
.tag.lime{background:rgba(180,255,58,.12);border-color:rgba(180,255,58,.35);color:#D8FF96}
.tag.orange{background:rgba(255,122,47,.13);border-color:rgba(255,122,47,.35);color:#FFC39A}

/* ---------- 步骤 ---------- */
.steps-band{
  background:linear-gradient(180deg,rgba(10,18,36,.6),rgba(5,10,22,0));
  border-top:1px solid rgba(160,190,255,.08);
  border-bottom:1px solid rgba(160,190,255,.08);
}
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step{
  position:relative;
  padding:26px 22px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(180,255,58,.4);box-shadow:var(--sh-1)}
.step .idx{
  font-family:var(--mono);
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:1px;
  display:block;
  margin-bottom:10px;
}
.step h4{margin-bottom:8px;font-size:17px}
.step p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}
.steps-line{
  margin-top:26px;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13.5px;
  color:var(--text-3);
}
.steps-line .bar{
  flex:1 1 auto;
  height:4px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:.55;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid rgba(160,190,255,.13)}
.faq-item:first-child{border-top:1px solid rgba(160,190,255,.13)}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 4px 22px 0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--text-1);
  transition:color .2s ease,padding-left .24s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:var(--glow-lime);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .25s ease;
}
.faq-item.is-open .faq-q{padding-left:18px}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-q:hover{color:var(--accent)}
.faq-icon{
  flex:0 0 auto;
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:9px;
  border:1px solid var(--glass-line);
  background:var(--glass);
  transition:transform .28s ease,border-color .28s ease;
}
.faq-icon svg{stroke:var(--text-2)}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(180,255,58,.5)}
.faq-item.is-open .faq-icon svg{stroke:var(--accent)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  margin:0;
  padding:0 40px 24px 18px;
  color:var(--text-2);
  font-size:15px;
}

/* ---------- CTA 大板 ---------- */
.cta-board{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  border:1px solid var(--glass-line);
  background:linear-gradient(120deg,rgba(14,26,49,.92),rgba(10,18,36,.7));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);
  padding:44px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-board::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(160,190,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,190,255,.055) 1px,transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}
.cta-board::after{
  content:"";
  position:absolute;
  right:-120px;bottom:-160px;
  width:440px;height:440px;
  border-radius:50%;
  border:1px solid rgba(180,255,58,.28);
  box-shadow:0 0 90px rgba(47,107,255,.28) inset;
  pointer-events:none;
}
.cta-board > *{position:relative;z-index:2}
.cta-board h2{margin-bottom:12px}
.cta-board p{color:var(--text-2);margin:0;font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  margin-top:96px;
  padding-top:64px;
  background:var(--bg-1);
  border-top:1px solid var(--glass-line);
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  opacity:.7;
}
.footer-arc{
  position:absolute;
  right:-160px;bottom:-200px;
  width:620px;height:620px;
  opacity:.24;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand p{
  color:var(--text-2);
  font-size:14px;
  margin:16px 0 18px;
  max-width:320px;
}
.social-row{display:flex;gap:10px}
.social-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--glass-line);
  background:var(--glass);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.social-btn svg{stroke:var(--text-2);fill:none}
.social-btn:hover{border-color:rgba(180,255,58,.5);transform:translateY(-3px)}
.social-btn:hover svg{stroke:var(--accent)}
.footer-col h4{
  font-size:14px;
  letter-spacing:.8px;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{
  font-size:13.5px;
  color:var(--text-2);
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:20px 0 96px;
  border-top:1px solid rgba(160,190,255,.1);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .info{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  height:64px;
  display:flex;
  align-items:center;
  background:rgba(10,18,36,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-top:1px solid var(--glass-line);
  box-shadow:0 -14px 40px rgba(3,10,30,.6);
  transform:translateY(110%);
  opacity:0;
  transition:transform .3s ease,opacity .3s ease;
}
.sticky-bar.is-visible{transform:translateY(0);opacity:1}
.sticky-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.sticky-text{
  font-size:14px;
  color:var(--text-2);
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}
.sticky-text .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:var(--glow-lime);flex:0 0 auto}
.sticky-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.sticky-close{
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:9px;
  border:1px solid var(--glass-line);
  background:var(--glass);
}
.sticky-close svg{stroke:var(--text-2)}
.sticky-close:hover svg{stroke:var(--accent)}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;
  right:20px;
  bottom:84px;
  z-index:70;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--glass-line);
  background:rgba(14,26,49,.9);
  backdrop-filter:blur(12px);
  box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease,border-color .2s ease;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{border-color:rgba(180,255,58,.5)}
.back-top svg{stroke:var(--accent)}

/* ---------- 进入视口动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .36s ease,transform .36s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1199px){
  .header-inner{gap:14px}
  .nav-link{padding:20px 10px;font-size:14px}
  .nav-search{width:180px}
}
@media (max-width:1023px){
  body{font-size:15.5px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .nav-search{width:150px}
  .header-inner{height:58px}
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .intro-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .alt-row__media{min-height:240px}
  .alt-row__body{padding:26px 24px}
  .cta-board{padding:34px 28px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sticky-bar{height:56px}
  .sticky-text{display:none}
  .sticky-inner{padding:0 14px calc(0px + env(safe-area-inset-bottom))}
  .sticky-actions{width:100%}
  .sticky-actions .btn{flex:1 1 auto}
  .back-top{bottom:72px;right:14px}
}
@media (max-width:767px){
  .nav-search{display:none}
  .alt-row{grid-template-columns:1fr;}
  .alt-row.reverse .alt-row__media{order:0}
  .alt-row.reverse .alt-row__body{order:1}
  .alt-row__media{min-height:210px}
  .steps{grid-template-columns:1fr}
  .cat-hero-inner{padding:48px 0 42px}
}
@media (max-width:575px){
  body{font-size:15px;line-height:1.85}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:28px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .intro-main{padding:22px 20px}
  .fact-card{padding:20px}
  .step{padding:22px 18px}
  .alt-row__body{padding:22px 20px}
  .faq-q{font-size:15.5px;padding:18px 0}
  .faq-item.is-open .faq-q{padding-left:16px}
  .faq-a p{padding:0 12px 20px 16px;font-size:14.5px}
  .cta-board{padding:26px 20px;border-radius:18px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{padding-bottom:104px}
  .brand-main{font-size:13px}
  .brand-sub{font-size:10px}
}

/* roulang page: category3 */
/* =============== 设计变量 =============== */
:root{
  --bg-base:#050A16;
  --bg-1:#0A1224;
  --bg-2:#0E1A31;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.08);
  --glass-line:rgba(160,190,255,.16);
  --brand:#2F6BFF;
  --brand-2:#5B93FF;
  --accent:#B4FF3A;
  --accent-2:#FF7A2F;
  --text-1:#F2F6FF;
  --text-2:#A9B8D6;
  --text-3:#6C7C9C;
  --ok:#38D39F;
  --err:#FF5D5D;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-tag:6px;
  --sh-1:0 10px 30px rgba(3,10,30,.35);
  --sh-2:0 18px 48px rgba(3,10,30,.55);
  --glow:0 0 24px rgba(47,107,255,.45);
  --glow-lime:0 0 20px rgba(180,255,58,.35);
  --container:1200px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
/* =============== reset / base =============== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
a:hover{color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input,textarea,select{font:inherit;}
svg{display:block;}
::selection{background:rgba(180,255,58,.28);color:#fff;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:10px 18px;background:var(--accent);color:#08180A;border-radius:0 0 10px 0;font-size:14px;
}
.skip-link:focus{left:0;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* =============== 容器 =============== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1440px){
  :root{--container:1280px;}
}

/* =============== 顶部导航 =============== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,10,22,.70);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,10,22,.92);
  border-bottom-color:var(--glass-line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  max-width:240px;flex:0 0 auto;
}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(140deg,rgba(47,107,255,.4),rgba(180,255,58,.14));
  border:1px solid var(--glass-line);
  box-shadow:0 0 18px rgba(47,107,255,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;min-width:0;}
.brand-main{
  font-size:15px;font-weight:700;letter-spacing:.2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.6px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;
  padding:10px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--text-1);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px rgba(180,255,58,.75);
}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.nav-search:focus-within{
  border-color:var(--brand-2);
  box-shadow:var(--glow);
  transform:scale(1.02);
}
.nav-search svg{flex:0 0 auto;stroke:var(--text-3);}
.nav-search input{
  flex:1 1 auto;min-width:0;width:100%;
  background:none;border:none;outline:none;
  color:var(--text-1);font-size:14px;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:10px;
  align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--glass-line);
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:var(--brand-2);background:var(--glass-2);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .2s ease,opacity .2s ease;
}
.btn:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-primary{
  background:var(--accent);color:#08180A;
  box-shadow:var(--glow-lime),inset 0 1px 0 rgba(255,255,255,.45);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 28px rgba(180,255,58,.5);}
.btn-ghost{
  background:var(--glass);border:1px solid var(--glass-line);color:var(--text-1);
}
.btn-ghost:hover{
  border-color:var(--brand-2);transform:translateY(-2px);background:var(--glass-2);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
}
.btn-text svg{transition:transform .2s ease;stroke:var(--accent);}
.btn-text:hover svg{transform:translateX(4px);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:80;
  background:rgba(3,7,16,.68);
  -webkit-backdrop-filter:blur(2px);
  backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;
  transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:84vw;max-width:360px;height:100%;
  padding:22px 20px 32px;
  background:var(--bg-1);
  border-left:1px solid var(--glass-line);
  box-shadow:var(--sh-2);
  transform:translateX(100%);
  transition:transform .32s ease;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:8px;
  border-bottom:1px solid var(--glass-line);
}
.drawer-title{font-size:14px;color:var(--text-3);letter-spacing:1px;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--glass-line);
}
.drawer-list{display:flex;flex-direction:column;margin-bottom:20px;}
.drawer-link{
  position:relative;
  display:block;
  padding:14px 12px 14px 18px;
  color:var(--text-2);font-size:15px;
  border-bottom:1px solid rgba(160,190,255,.08);
}
.drawer-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent);border-radius:2px;
  transition:height .22s ease;
}
.drawer-link:hover::before,.drawer-link.is-active::before{height:20px;}
.drawer-link:hover,.drawer-link.is-active{color:var(--text-1);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:12px;}
.drawer-actions .btn{width:100%;}

@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-side .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-side .btn-primary{height:40px;padding:0 16px;font-size:14px;}
}
@media (min-width:1024px){
  .mobile-drawer,.drawer-mask{display:none;}
}
@media (max-width:575px){
  .header-inner{height:56px;gap:12px;}
  .brand-sub{display:none;}
  .brand-main{font-size:14px;}
  .nav-side .btn-primary{display:none;}
}

/* =============== 面包屑 =============== */
.breadcrumb-bar{border-bottom:1px solid rgba(160,190,255,.08);background:var(--bg-base);}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  height:44px;font-size:13px;color:var(--text-3);
  overflow:hidden;white-space:nowrap;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--text-3);opacity:.7;}
.breadcrumb .current{color:var(--text-3);overflow:hidden;text-overflow:ellipsis;}

/* =============== 分类 Hero =============== */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 56px;
  background:var(--bg-1);
  border-bottom:1px solid rgba(160,190,255,.08);
}
.cat-hero-bg{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.42;
}
.cat-hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(105deg,rgba(5,10,22,.96) 8%,rgba(5,10,22,.72) 48%,rgba(5,10,22,.42) 100%),
    radial-gradient(900px 420px at 88% 12%,rgba(47,107,255,.24),transparent 62%);
}
.cat-hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(160,190,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,190,255,.05) 1px,transparent 1px);
  background-size:40px 40px;
  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%);
}
.cat-hero-inner{position:relative;z-index:2;max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-tag);
  font-size:12px;letter-spacing:.4px;
  background:var(--glass);border:1px solid var(--glass-line);color:var(--text-2);
}
.badge-lime{border-color:rgba(180,255,58,.42);color:var(--accent);background:rgba(180,255,58,.08);}
.badge-blue{border-color:rgba(91,147,255,.42);color:var(--brand-2);background:rgba(47,107,255,.1);}
.badge-orange{border-color:rgba(255,122,47,.42);color:var(--accent-2);background:rgba(255,122,47,.1);}
.cat-hero h1{
  margin:18px 0 16px;
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.18;
  letter-spacing:.5px;
}
.cat-hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:28px;
}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-facts{
  display:flex;flex-wrap:wrap;align-items:stretch;
  gap:0;
  padding:18px 4px;
  border-top:1px solid var(--glass-line);
  border-bottom:1px solid var(--glass-line);
}
.hero-facts li{
  flex:1 1 0;
  min-width:120px;
  padding:0 18px;
  border-left:1px solid rgba(160,190,255,.14);
}
.hero-facts li:first-child{border-left:none;padding-left:0;}
.hero-facts strong{
  display:block;
  font-size:24px;font-weight:700;line-height:1.3;
  font-variant-numeric:tabular-nums;
  color:var(--text-1);
}
.hero-facts strong em{font-style:normal;font-size:14px;color:var(--accent);margin-left:2px;}
.hero-facts span{font-size:13px;color:var(--text-3);}
@media (max-width:767px){
  .cat-hero{padding:44px 0 40px;}
  .cat-hero-sub{font-size:15.5px;}
  .cat-hero-actions{gap:10px;}
  .cat-hero-actions .btn{width:100%;}
  .hero-facts{padding:14px 0;}
  .hero-facts li{flex:1 1 46%;min-width:46%;padding:10px 14px;}
  .hero-facts li:nth-child(odd){border-left:none;padding-left:0;}
  .hero-facts li:nth-child(3),.hero-facts li:nth-child(4){border-top:1px solid rgba(160,190,255,.14);}
}

/* =============== 通用板块 =============== */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid rgba(160,190,255,.07);border-bottom:1px solid rgba(160,190,255,.07);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:44px;
}
.section-head-main{max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:1.6px;
  color:var(--accent);
  margin-bottom:10px;
}
.eyebrow::before{
  content:"";width:16px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--accent));
  box-shadow:0 0 12px rgba(180,255,58,.6);
}
.section-title{
  font-size:clamp(22px,2.8vw,34px);
  line-height:1.3;
}
.section-note{font-size:14px;color:var(--text-3);max-width:320px;text-align:right;line-height:1.7;}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-note{text-align:left;max-width:none;}
}

/* =============== 介绍区 =============== */
.intro-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.intro-media{position:relative;}
.intro-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-2);
}
.media-tag{
  position:absolute;left:16px;bottom:16px;
  padding:6px 12px;border-radius:var(--r-tag);
  font-size:12px;color:var(--text-1);
  background:rgba(5,10,22,.72);
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.intro-copy p{color:var(--text-2);margin-bottom:18px;}
.feature-list{margin:24px 0 28px;display:flex;flex-direction:column;gap:12px;}
.feature-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;color:var(--text-2);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:rgba(180,255,58,.9);
  box-shadow:0 0 10px rgba(180,255,58,.6);
}
@media (max-width:1023px){
  .intro-grid{grid-template-columns:1fr;gap:28px;}
}

/* =============== 时间线 =============== */
.timeline-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.timeline{position:relative;margin:0;}
.timeline::before{
  content:"";position:absolute;left:23px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(47,107,255,.65),rgba(180,255,58,.5),rgba(47,107,255,.06));
}
.tl-item{
  position:relative;
  padding:0 0 32px 76px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:16px;top:16px;
  width:15px;height:15px;border-radius:50%;
  background:var(--bg-1);
  border:2px solid var(--brand-2);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease,transform .25s ease;
}
.tl-item:hover .tl-node{
  border-color:var(--accent);
  background:rgba(180,255,58,.2);
  box-shadow:var(--glow-lime);
  transform:scale(1.16);
}
.tl-body{
  padding:20px 24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease,background .28s ease;
}
.tl-item:hover .tl-body{
  border-color:rgba(180,255,58,.36);
  background:var(--glass-2);
  transform:translateY(-3px);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.09);
}
.tl-num{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:1.4px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.tl-body h3{font-size:18px;margin-bottom:8px;line-height:1.5;}
.tl-body p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.85;}
.timeline-side{
  position:sticky;top:92px;
  padding:26px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.07);
}
.timeline-side img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--glass-line);
  margin-bottom:20px;
}
.timeline-side h3{font-size:18px;margin-bottom:10px;}
.timeline-side p{font-size:14px;color:var(--text-2);}
.tl-metric{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;
  border-top:1px solid rgba(160,190,255,.12);
  font-size:13.5px;color:var(--text-3);
}
.tl-metric strong{color:var(--text-1);font-size:16px;font-variant-numeric:tabular-nums;}
@media (max-width:1023px){
  .timeline-wrap{grid-template-columns:1fr;gap:32px;}
  .timeline-side{position:static;}
}
@media (max-width:575px){
  .tl-item{padding-left:56px;padding-bottom:24px;}
  .timeline::before{left:15px;}
  .tl-node{left:8px;}
  .tl-body{padding:16px 18px;}
}

/* =============== 数据面板 =============== */
.stat-grid{margin-bottom:-20px;}
.stat-grid .cell{margin-bottom:20px;}
.stat-card{
  height:100%;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  position:relative;
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.stat-card::before{
  content:"";position:absolute;left:0;top:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:.7;
}
.stat-card:hover{
  transform:translateY(-4px);
  border-color:rgba(180,255,58,.34);
  background:var(--glass-2);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.09);
}
.stat-ico{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;margin-bottom:16px;
  background:rgba(47,107,255,.14);
  border:1px solid rgba(91,147,255,.3);
}
.stat-ico svg{stroke:var(--brand-2);}
.stat-value{
  font-size:30px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;
  margin-bottom:4px;
}
.stat-value em{font-style:normal;font-size:15px;color:var(--accent);margin-left:3px;}
.stat-label{font-size:15px;font-weight:600;margin-bottom:6px;}
.stat-desc{font-size:13.5px;color:var(--text-3);line-height:1.75;margin:0;}

/* =============== 赛程横滑 =============== */
.track-row{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:4px 4px 22px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.track-row::-webkit-scrollbar{height:6px;}
.track-row::-webkit-scrollbar-track{background:rgba(160,190,255,.08);border-radius:6px;}
.track-row::-webkit-scrollbar-thumb{background:rgba(91,147,255,.5);border-radius:6px;}
.track-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  padding:22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.track-card:hover{
  transform:translateY(-4px);
  border-color:rgba(91,147,255,.5);
  background:var(--glass-2);
  box-shadow:var(--sh-1);
}
.track-time{
  font-size:26px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.track-tag{display:inline-flex;margin-bottom:14px;}
.track-card h3{font-size:16px;margin-bottom:8px;line-height:1.5;}
.track-card p{font-size:13.5px;color:var(--text-3);line-height:1.75;margin:0 0 16px;}
.track-meta{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;
  border-top:1px solid rgba(160,190,255,.12);
  font-size:13px;color:var(--text-2);
}
.track-meta .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(180,255,58,.7);
  display:inline-block;margin-right:6px;
  animation:pulse 1.8s infinite ease-in-out;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.8);}
}
@media (max-width:575px){
  .track-card{flex:0 0 84%;}
}

/* =============== FAQ =============== */
.faq-accordion.accordion{
  background:transparent;
  border:none;
  margin:0;
}
.faq-accordion .accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid rgba(160,190,255,.14);
  border-radius:0;
}
.faq-accordion .accordion-item:first-child{border-top:1px solid rgba(160,190,255,.14);}
.faq-accordion .accordion-title{
  display:block;
  padding:22px 56px 22px 22px;
  background:transparent;
  border:none;
  border-radius:0;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  position:relative;
  transition:color .22s ease,background .22s ease;
}
.faq-accordion .accordion-title:hover{color:var(--accent);background:rgba(255,255,255,.03);}
.faq-accordion .accordion-title::before{
  content:"";
  position:absolute;right:20px;top:50%;left:auto;
  width:14px;height:2px;margin-top:-1px;
  background:var(--text-3);
  transition:background .22s ease;
}
.faq-accordion .accordion-title::after{
  content:"";
  position:absolute;right:26px;top:50%;
  width:2px;height:14px;margin-top:-7px;
  background:var(--text-3);
  transition:transform .28s ease,background .22s ease,opacity .28s ease;
}
.faq-accordion .accordion-title:hover::before,
.faq-accordion .accordion-title:hover::after{background:var(--accent);}
.faq-accordion .accordion-item.is-active .accordion-title::before{background:var(--accent);}
.faq-accordion .accordion-item.is-active .accordion-title::after{
  transform:rotate(90deg) scaleY(0.05);
  opacity:0;
  background:var(--accent);
}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--accent);}
.faq-accordion .accordion-title .faq-bar{
  position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;
  background:var(--accent);opacity:0;transform:scaleY(.4);
  transition:opacity .25s ease,transform .25s ease;
  box-shadow:0 0 12px rgba(180,255,58,.6);
}
.faq-accordion .accordion-item.is-active .accordion-title .faq-bar{opacity:1;transform:scaleY(1);}
.faq-accordion .accordion-content{
  padding:0 56px 24px 22px;
  background:transparent;
  border:none;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}
.faq-accordion .accordion-content p{margin:0 0 10px;}
@media (max-width:575px){
  .faq-accordion .accordion-title{font-size:15.5px;padding:18px 48px 18px 18px;}
  .faq-accordion .accordion-content{padding:0 46px 20px 18px;font-size:14.5px;}
}

/* =============== CTA 大板 =============== */
.cta-board{
  position:relative;
  overflow:hidden;
  padding:52px;
  border-radius:26px;
  border:1px solid var(--glass-line);
  background:linear-gradient(120deg,rgba(14,26,49,.94),rgba(10,18,36,.86));
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-board::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(160,190,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,190,255,.06) 1px,transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:radial-gradient(600px 300px at 80% 20%,#000,transparent 75%);
  mask-image:radial-gradient(600px 300px at 80% 20%,#000,transparent 75%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-inner h2{font-size:clamp(22px,3vw,32px);margin-bottom:12px;line-height:1.32;}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:520px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
@media (max-width:1023px){
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 180px;}
}
@media (max-width:575px){
  .cta-board{padding:30px 22px;border-radius:20px;}
  .cta-actions .btn{flex:1 1 100%;}
}

/* =============== 页脚 =============== */
.site-footer{
  position:relative;
  overflow:hidden;
  margin-top:24px;
  padding:72px 0 0;
  background:var(--bg-1);
  border-top:1px solid var(--glass-line);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,107,255,.7),rgba(180,255,58,.7),transparent);
}
.footer-arc{
  position:absolute;right:-140px;bottom:-180px;
  width:560px;height:560px;
  opacity:.16;
  pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:340px;line-height:1.85;}
.social-row{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--glass-line);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.social-btn svg{stroke:var(--text-2);}
.social-btn:hover{border-color:var(--accent);background:var(--glass-2);transform:translateY(-2px);}
.social-btn:hover svg{stroke:var(--accent);}
.footer-col h4{
  font-size:14px;letter-spacing:.8px;margin-bottom:18px;color:var(--text-1);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color .2s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 96px;
  border-top:1px solid rgba(160,190,255,.12);
  font-size:13px;color:var(--text-3);
  flex-wrap:wrap;
}
.footer-bottom p{margin:0;}
.footer-domain{font-variant-numeric:tabular-nums;letter-spacing:.4px;}
.to-top-inline{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--text-2);
  padding:8px 14px;border-radius:10px;
  background:var(--glass);border:1px solid var(--glass-line);
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.to-top-inline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:575px){
  .site-footer{padding-top:52px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{padding:20px 0 92px;}
}

/* =============== 底部固定转化条 =============== */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  min-height:64px;
  display:flex;align-items:center;
  background:rgba(10,18,36,.9);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-top:1px solid var(--glass-line);
  box-shadow:0 -8px 32px rgba(3,10,30,.5);
  transform:translateY(110%);
  opacity:0;
  pointer-events:none;
  transition:transform .36s ease,opacity .36s ease;
}
.sticky-cta.is-visible{transform:translateY(0);opacity:1;pointer-events:auto;}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;padding:10px 0;
}
.sticky-text{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);min-width:0;}
.sticky-text strong{color:var(--text-1);font-weight:600;}
.sticky-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.sticky-close{
  width:32px;height:32px;border-radius:9px;
  display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--glass-line);
  transition:border-color .2s ease;
}
.sticky-close:hover{border-color:var(--err);}
.sticky-close svg{stroke:var(--text-3);}
@media (max-width:767px){
  .sticky-cta{min-height:56px;padding-bottom:env(safe-area-inset-bottom);}
  .sticky-text{display:none;}
  .sticky-inner{gap:10px;}
  .sticky-actions{flex:1 1 auto;}
  .sticky-actions .btn-primary{flex:1 1 auto;}
  .sticky-actions .btn-ghost{display:none;}
}

/* =============== 回到顶部 =============== */
.to-top{
  position:fixed;right:20px;bottom:84px;z-index:65;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(14,26,49,.86);
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  opacity:0;pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,border-color .25s ease;
}
.to-top.is-visible{opacity:1;pointer-events:auto;}
.to-top:hover{border-color:var(--accent);transform:translateY(-3px);}
.to-top svg{stroke:var(--text-1);}
@media (max-width:767px){
  .to-top{right:14px;bottom:76px;width:40px;height:40px;}
}

/* =============== 滚动进视 =============== */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .4s ease,transform .4s ease;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .track-meta .dot{animation:none;}
  *{transition-duration:.01ms !important;}
}