/* roulang page: index */
:root{
  --base:#070B14;
  --surface:#0C1424;
  --raised:#111C33;
  --primary:#2F6BFF;
  --primary-deep:#1B47B8;
  --accent:#21E6C1;
  --tertiary:#FFB454;
  --text:#E8EEFB;
  --text-sub:#9FB0CC;
  --text-weak:#6B7C99;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --line-hot:rgba(47,107,255,.45);
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit;outline:none}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,107,255,.4)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.sec{padding:64px 0}
@media (min-width:768px){.sec{padding:88px 0}}
@media (min-width:1024px){.sec{padding:104px 0}}
section[id]{scroll-margin-top:130px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-top{display:flex;align-items:center;gap:14px;height:62px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:700;font-size:17px;
  background:linear-gradient(140deg,#2F6BFF,#0E2E7A);
  box-shadow:0 0 22px rgba(47,107,255,.5),inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.1}
.brand-sub{font-size:10px;color:var(--text-weak);letter-spacing:.16em;font-family:var(--font-mono);text-transform:uppercase}
.nav-search{
  flex:1;max-width:420px;min-width:200px;
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .25s,box-shadow .25s;
}
.nav-search:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 4px rgba(47,107,255,.18)}
.nav-search input{flex:1;background:transparent;border:none;font-size:14px}
.nav-search input::placeholder{color:var(--text-weak)}
.nav-search svg{flex-shrink:0;color:var(--text-weak)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-tabs-wrap{border-top:1px solid var(--line-soft);position:relative}
.nav-tabs{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;
  overflow-x:auto;height:44px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-tabs::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;
  height:32px;line-height:30px;padding:0 15px;border-radius:999px;
  font-size:13.5px;color:var(--text-sub);
  border:1px solid transparent;
  transition:color .25s,background .25s,border-color .25s;
  white-space:nowrap;
}
.tab:hover{color:var(--text);background:rgba(255,255,255,.05)}
.tab.is-active{
  color:#fff;
  background:linear-gradient(140deg,rgba(47,107,255,.9),rgba(27,71,184,.85));
  border-color:rgba(47,107,255,.6);
  box-shadow:0 0 18px rgba(47,107,255,.4);
}
.nav-tabs-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:36px;pointer-events:none;
  background:linear-gradient(90deg,rgba(7,11,20,0),rgba(7,11,20,.95));
}
@media (min-width:1024px){.nav-tabs-wrap::after{display:none}}
.burger{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;
}
@media (max-width:1023px){
  .nav-search{display:none}
  .nav-actions .btn-main{display:none}
  .burger{display:flex}
}
.drawer{
  display:none;border-top:1px solid var(--line-soft);
  background:rgba(9,14,26,.98);
}
.drawer.is-open{display:block}
.drawer a{
  display:block;padding:14px 4px;font-size:15px;color:var(--text-sub);
  border-bottom:1px solid var(--line-soft);
}
.drawer a:hover{color:var(--text)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .3s,box-shadow .3s,background .3s,border-color .3s,filter .3s;
  white-space:nowrap;
}
.btn-main{
  background:linear-gradient(140deg,#2F6BFF,#1B47B8);color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.08) inset,0 0 28px rgba(47,107,255,.45);
}
.btn-main:hover{box-shadow:0 0 0 1px rgba(255,255,255,.12) inset,0 0 40px rgba(47,107,255,.6);filter:brightness(1.08);transform:translateY(-2px)}
.btn-main:active{transform:translateY(0);box-shadow:0 0 12px rgba(47,107,255,.55)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:rgba(47,107,255,.5);color:#BFD4FF;
}
.btn-ghost:hover{background:rgba(47,107,255,.14);transform:translateY(-2px);border-color:rgba(47,107,255,.75)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:12px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- 玻璃卡 ---------- */
.glass{
  position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:border-color .3s,transform .3s,box-shadow .3s;
}
.glass::before{
  content:"";position:absolute;left:12px;right:12px;top:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.45),rgba(255,255,255,0));
  border-radius:999px;pointer-events:none;
}
.glass:hover{border-color:var(--line-hot);transform:translateY(-2px)}
.glass.no-lift:hover{transform:none}
.r-lg{border-radius:var(--r-lg)}
.r-sm{border-radius:var(--r-sm)}

/* ---------- 通用小件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--text-weak);font-family:var(--font-mono);
}
.eyebrow i{width:18px;height:2px;background:var(--accent);display:inline-block;border-radius:2px;box-shadow:0 0 10px rgba(33,230,193,.7)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--tertiary);border:1px solid rgba(255,180,84,.4);
  background:rgba(255,180,84,.08);
}
.chip{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;border-radius:999px;font-size:13px;
  color:var(--text-sub);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .25s;cursor:pointer;
}
.chip:hover{color:#fff;background:rgba(47,107,255,.16);border-color:var(--line-hot)}
.chip.is-on{color:#fff;background:rgba(47,107,255,.85);border-color:rgba(47,107,255,.9);box-shadow:0 0 16px rgba(47,107,255,.4)}
.divider{height:1px;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.14),rgba(255,255,255,0))}
.sec-title{font-size:24px;line-height:1.3}
@media (min-width:768px){.sec-title{font-size:34px}}
.sec-desc{color:var(--text-sub);font-size:15px;line-height:1.8;max-width:840px}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:56px 0 64px;
  background:
    linear-gradient(180deg,rgba(7,11,20,.82),rgba(7,11,20,.96)),
    radial-gradient(900px 420px at 12% 0%,rgba(47,107,255,.28),transparent 65%),
    radial-gradient(700px 380px at 92% 18%,rgba(33,230,193,.14),transparent 62%),
    url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
}
.hero-inner{position:relative;z-index:2}
.hero h1{font-size:30px;line-height:1.18;letter-spacing:-.02em}
@media (min-width:768px){.hero h1{font-size:40px}}
@media (min-width:1024px){.hero h1{font-size:48px}}
.hero-lead{color:var(--text-sub);font-size:15px;line-height:1.85;max-width:44em}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:26px}
.hero-stat{display:flex;flex-direction:column;gap:2px}
.hero-stat b{font-family:var(--font-mono);font-size:20px;color:var(--accent)}
.hero-stat span{font-size:12.5px;color:var(--text-weak)}

/* ---------- 表单 ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:8px}
.input,.select,.textarea{
  width:100%;height:48px;padding:0 16px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text);font-size:14.5px;
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.textarea{height:auto;padding:13px 16px;line-height:1.7;resize:vertical;min-height:96px}
.input::placeholder,.textarea::placeholder{color:var(--text-weak)}
.input:focus,.select:focus,.textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(47,107,255,.18);
  background:rgba(255,255,255,.07);
}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#9FB0CC 50%),linear-gradient(135deg,#9FB0CC 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:44px}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-sub);line-height:1.7}
.checkline input{width:16px;height:16px;margin-top:4px;accent-color:#2F6BFF;flex-shrink:0}
.form-note{font-size:12px;color:var(--text-weak);margin-top:10px}

/* ---------- 指标看板 ---------- */
.metric{
  padding:20px;border-radius:var(--r-sm);
  display:flex;flex-direction:column;gap:6px;
}
.metric b{
  font-family:var(--font-mono);font-size:24px;color:var(--accent);
  transition:transform .3s,color .3s;
}
.metric:hover b{transform:scale(1.06)}
.metric span{font-size:13px;color:var(--text-sub)}
.metric em{font-size:12px;color:var(--text-weak);font-style:normal}

/* ---------- 服务矩阵 ---------- */
.matrix-item{padding:24px;border-radius:var(--r-md);display:flex;flex-direction:column;gap:10px;height:100%}
.matrix-item h3{font-size:18px}
.matrix-item p{font-size:14px;color:var(--text-sub);line-height:1.75}
.icon-box{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,107,255,.14);border:1px solid rgba(47,107,255,.35);color:#9EC0FF;
  transition:transform .3s,background .3s;
}
.glass:hover .icon-box{transform:translateX(2px);background:rgba(47,107,255,.22)}

/* ---------- 对比 ---------- */
.compare-col{padding:26px;border-radius:var(--r-md);height:100%}
.compare-col h3{font-size:17px;margin-bottom:14px}
.compare-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-sub);padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.08)}
.compare-row:last-child{border-bottom:none}
.compare-row .mk{font-family:var(--font-mono);font-weight:700;line-height:1.7}
.mk-x{color:#8494AD}
.mk-v{color:var(--accent)}

/* ---------- 时间轴 ---------- */
.tl-wrap{position:relative;overflow-x:auto;scrollbar-width:none;padding-bottom:6px}
.tl-wrap::-webkit-scrollbar{display:none}
.tl{display:flex;gap:0;min-width:820px;position:relative;padding-top:26px}
.tl::before{content:"";position:absolute;left:0;right:0;top:6px;height:2px;background:linear-gradient(90deg,rgba(47,107,255,.7),rgba(33,230,193,.5),rgba(47,107,255,.15))}
.tl-node{flex:1;position:relative;padding:0 16px 0 0}
.tl-node::after{
  content:"";position:absolute;left:0;top:-26px;width:12px;height:12px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(47,107,255,.18),0 0 16px rgba(47,107,255,.8);
}
.tl-node b{display:block;font-family:var(--font-mono);font-size:12px;color:var(--text-weak);letter-spacing:.08em}
.tl-node h3{font-size:16px;margin:6px 0 6px}
.tl-node p{font-size:13.5px;color:var(--text-sub);line-height:1.7}

/* ---------- 资讯列表 ---------- */
.news-row{
  display:grid;grid-template-columns:1fr;gap:14px;align-items:center;
  padding:16px;border-radius:var(--r-sm);
  border:1px solid var(--line-soft);
  background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  transition:background .3s,border-color .3s,transform .3s;
}
.news-row:hover{background:rgba(47,107,255,.09);border-color:var(--line-hot)}
.news-row:hover h3{transform:translateX(2px)}
.news-row h3{font-size:16px;transition:transform .3s}
.news-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px}
@media (min-width:768px){
  .news-row{grid-template-columns:180px 1fr auto;gap:20px}
}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--text-weak);white-space:nowrap}

/* ---------- FAQ ---------- */
.faq-item{
  border-radius:var(--r-sm);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  overflow:hidden;transition:border-color .25s;
}
.faq-item+.faq-item{margin-top:12px}
.faq-item[open]{border-color:var(--line-hot);background:linear-gradient(160deg,rgba(47,107,255,.12),rgba(255,255,255,.02))}
.faq-item summary{
  list-style:none;cursor:pointer;height:56px;display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;font-size:15px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{
  width:24px;height:24px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-family:var(--font-mono);font-size:18px;line-height:1;
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open] .faq-ico{transform:rotate(45deg);color:var(--accent)}
.faq-body{padding:0 20px 18px;font-size:14.5px;color:var(--text-sub);line-height:1.85}

/* ---------- 步骤 ---------- */
.step{padding:22px;border-radius:var(--r-sm);height:100%;position:relative}
.step b{font-family:var(--font-mono);font-size:13px;color:var(--accent);letter-spacing:.1em}
.step h3{font-size:17px;margin:10px 0 8px}
.step p{font-size:14px;color:var(--text-sub);line-height:1.75}

/* ---------- 专题合集 ---------- */
.topic-card{position:relative;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);display:block}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.topic-card:hover img{transform:scale(1.05)}
.topic-mask{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;gap:6px;padding:18px;
  background:linear-gradient(180deg,rgba(7,11,20,.05) 20%,rgba(7,11,20,.9) 100%);
  transition:background .4s;
}
.topic-card:hover .topic-mask{background:linear-gradient(180deg,rgba(7,11,20,0) 16%,rgba(7,11,20,.82) 100%)}
.topic-mask h3{font-size:17px}
.topic-mask span{font-size:12.5px;color:var(--text-sub)}

/* ---------- 分类入口 ---------- */
.cat-card{display:flex;flex-direction:column;gap:12px;padding:24px;border-radius:var(--r-md);height:100%}
.cat-card .num{font-family:var(--font-mono);font-size:26px;color:var(--accent)}
.cat-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:#9EC0FF;font-weight:600}
.cat-link:hover{color:#fff}

/* ---------- CTA 条 ---------- */
.cta-band{
  padding:28px;border-radius:var(--r-md);
  background:linear-gradient(120deg,rgba(47,107,255,.22),rgba(33,230,193,.08));
  border:1px solid rgba(47,107,255,.35);
  display:flex;flex-direction:column;gap:18px;
}
@media (min-width:768px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between}}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(9,14,26,.9);position:relative}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,107,255,.7),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:52px 0 34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-title{font-size:14px;font-weight:700;margin-bottom:14px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13.5px;color:var(--text-sub);transition:color .25s}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid var(--line-soft);padding:18px 0;font-size:12.5px;color:var(--text-weak);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}

/* ---------- 动画 ---------- */
@keyframes riseIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.rise{animation:riseIn .7s ease both}
.rise-2{animation-delay:.08s}
.rise-3{animation-delay:.16s}
@media (prefers-reduced-motion:reduce){.rise,.rise-2,.rise-3{animation:none}*{transition:none!important}}

/* roulang page: category1 */
/* ===== 设计系统变量 ===== */
:root{
  --base:#070B14;
  --surface:#0C1424;
  --raised:#111C33;
  --primary:#2F6BFF;
  --primary-deep:#1B47B8;
  --accent:#21E6C1;
  --tertiary:#FFB454;
  --text:#E8EEFB;
  --text-sub:#9FB0CC;
  --text-weak:#6B7C99;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --line-hot:rgba(47,107,255,.45);
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,monospace;
}
/* ===== 基础 ===== */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit;outline:none}
h1,h2,h3,p,ul{margin:0;padding:0}
ul{list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
section[id]{scroll-margin-top:132px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-top{display:flex;align-items:center;gap:14px;height:62px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:700;font-size:17px;color:#fff;
  background:linear-gradient(140deg,#2F6BFF,#0E2E7A);
  box-shadow:0 0 22px rgba(47,107,255,.5),inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.15;display:block}
.brand-sub{font-size:10px;color:var(--text-weak);letter-spacing:.16em;font-family:var(--font-mono);text-transform:uppercase;display:block}
.nav-search{
  flex:1;max-width:420px;min-width:180px;
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .25s,box-shadow .25s;
}
.nav-search:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 4px rgba(47,107,255,.18)}
.nav-search input{flex:1;min-width:0;background:transparent;border:none;font-size:14px}
.nav-search input::placeholder{color:var(--text-weak)}
.nav-search svg{flex-shrink:0;color:var(--text-weak)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);cursor:pointer;
}
.menu-btn:hover{border-color:var(--line-hot)}
.nav-tabs-wrap{border-top:1px solid var(--line-soft);position:relative}
.nav-tabs{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;
  overflow-x:auto;height:46px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-tabs::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;
  font-size:13.5px;color:var(--text-sub);
  border:1px solid transparent;
  transition:color .25s,background .25s,border-color .25s;
}
.tab:hover{color:#fff;background:rgba(47,107,255,.14);border-color:var(--line-hot)}
.tab.is-active{
  color:#fff;background:rgba(47,107,255,.9);border-color:rgba(47,107,255,.95);
  box-shadow:0 0 16px rgba(47,107,255,.45);
}
.drawer{display:none;border-top:1px solid var(--line-soft);background:rgba(9,14,26,.98)}
.drawer.is-open{display:block}
.drawer a{display:block;padding:13px 4px;font-size:15px;color:var(--text-sub);border-bottom:1px solid var(--line-soft)}
.drawer a:hover,.drawer a.is-active{color:#fff}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .3s,box-shadow .3s,background .3s,border-color .3s,filter .3s;
  white-space:nowrap;
}
.btn-main{
  background:linear-gradient(140deg,#2F6BFF,#1B47B8);color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.08) inset,0 0 28px rgba(47,107,255,.45);
}
.btn-main:hover{box-shadow:0 0 0 1px rgba(255,255,255,.12) inset,0 0 40px rgba(47,107,255,.6);filter:brightness(1.08);transform:translateY(-2px)}
.btn-main:active{transform:translateY(0);box-shadow:0 0 12px rgba(47,107,255,.55)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(47,107,255,.5);color:#BFD4FF}
.btn-ghost:hover{background:rgba(47,107,255,.14);transform:translateY(-2px);border-color:rgba(47,107,255,.75)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:12px}
.btn:focus-visible,.tab:focus-visible,.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn[disabled]{filter:saturate(.4);cursor:not-allowed}

/* ===== 通用小件 ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--text-weak);font-family:var(--font-mono);
}
.eyebrow i{width:18px;height:2px;background:var(--accent);display:inline-block;border-radius:2px;box-shadow:0 0 10px rgba(33,230,193,.7)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--tertiary);
  border:1px solid rgba(255,180,84,.4);background:rgba(255,180,84,.08);
}
.chip{
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;font-size:13px;
  color:var(--text-sub);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .25s;cursor:pointer;
}
.chip:hover{color:#fff;background:rgba(47,107,255,.16);border-color:var(--line-hot)}
.chip.is-on{color:#fff;background:rgba(47,107,255,.88);border-color:rgba(47,107,255,.95);box-shadow:0 0 16px rgba(47,107,255,.4)}
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
}
.sec{padding:64px 0}
@media(min-width:1024px){.sec{padding:96px 0}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.sec-title{font-size:24px;line-height:1.3;font-weight:700}
@media(min-width:1024px){.sec-title{font-size:32px}}
.sec-sub{color:var(--text-sub);font-size:14.5px;max-width:640px}
.rule-line{height:1px;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.14),rgba(255,255,255,0))}

/* ===== 分类标题带 ===== */
.cat-head{
  position:relative;
  padding:30px 0 38px;
  max-height:320px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(7,11,20,.86),rgba(7,11,20,.97)),
    radial-gradient(760px 340px at 8% 0%,rgba(47,107,255,.26),transparent 66%),
    radial-gradient(600px 300px at 94% 20%,rgba(33,230,193,.12),transparent 62%),
    url("/assets/images/backpic/back-3.jpg") center/cover no-repeat;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-weak);margin-bottom:14px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.cat-h1{
  font-size:30px;line-height:1.15;font-weight:700;letter-spacing:-.02em;
  max-width:760px;
}
@media(min-width:1024px){.cat-h1{font-size:44px}}
.cat-intro{color:var(--text-sub);font-size:15px;margin-top:12px;max-width:720px}
.cat-head-grid{display:grid;gap:26px;align-items:end}
@media(min-width:1024px){
  .cat-head-grid{grid-template-columns:8fr 4fr;gap:36px}
}
.stat-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stat{padding:14px 12px;border-radius:var(--r-sm);background:rgba(255,255,255,.045);border:1px solid var(--line)}
.stat b{display:block;font-family:var(--font-mono);font-size:20px;color:var(--accent);font-variant-numeric:tabular-nums}
.stat span{font-size:12px;color:var(--text-weak);display:block;margin-top:2px}

/* ===== 工具条 ===== */
.toolbar-wrap{margin-top:-18px;position:relative;z-index:5}
.toolbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:14px 16px;border-radius:var(--r-md);
}
.tool-search{
  flex:1 1 240px;min-width:200px;
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border-radius:var(--r-sm);background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .25s,box-shadow .25s;
}
.tool-search:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 4px rgba(47,107,255,.16)}
.tool-search input{flex:1;min-width:0;background:transparent;border:none;font-size:14px}
.tool-search input::placeholder{color:var(--text-weak)}
.pill-row{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.pill-row::-webkit-scrollbar{display:none}
.view-toggle{display:flex;gap:6px;margin-left:auto}
.view-btn{
  width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-weak);cursor:pointer;
  transition:all .25s;
}
.view-btn:hover{color:#fff;border-color:var(--line-hot)}
.view-btn.is-on{color:#fff;background:rgba(47,107,255,.85);border-color:rgba(47,107,255,.95)}

/* ===== 条目卡 ===== */
.card-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.entry-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.entry-card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:0 22px 48px -26px rgba(0,0,0,.95),0 0 26px -14px rgba(47,107,255,.6)}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1120}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.entry-card:hover .entry-thumb img{transform:scale(1.05)}
.entry-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,0),rgba(7,11,20,.72))}
.entry-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  height:24px;padding:0 10px;border-radius:999px;display:inline-flex;align-items:center;
  font-size:11.5px;font-family:var(--font-mono);color:#062A22;
  background:var(--accent);font-weight:700;
}
.entry-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.entry-title{font-size:16.5px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-desc{color:var(--text-sub);font-size:13.5px;line-height:1.7;margin-top:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.entry-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line-soft)}
.entry-tags{display:flex;gap:6px;flex-wrap:wrap}
.mini-tag{font-size:11.5px;color:var(--text-sub);border:1px solid var(--line);border-radius:999px;padding:2px 9px}
.entry-time{font-size:12px;color:var(--text-weak);font-family:var(--font-mono);white-space:nowrap}
.more-row{display:flex;justify-content:center;margin-top:36px}
.card-grid.is-list{grid-template-columns:1fr}
@media(min-width:768px){.card-grid.is-list{grid-template-columns:1fr}}

/* ===== 热门条目 ===== */
.rank-list{display:grid;gap:14px}
.rank-item{
  display:flex;align-items:center;gap:16px;padding:14px 16px;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  transition:transform .3s,border-color .3s,background .3s;
}
.rank-item:hover{transform:translateX(4px);border-color:var(--line-hot);background:rgba(47,107,255,.09)}
.rank-no{font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--accent);min-width:38px}
.rank-thumb{width:96px;aspect-ratio:16/9;border-radius:11px;object-fit:cover;flex-shrink:0}
.rank-main{flex:1;min-width:0}
.rank-main h3{font-size:15.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-main p{font-size:13px;color:var(--text-weak);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-meta{font-size:12px;color:var(--tertiary);font-family:var(--font-mono);white-space:nowrap}

/* ===== 标签墙 ===== */
.tag-wall{display:flex;flex-wrap:wrap;gap:10px}
.tag-pill{
  display:inline-flex;align-items:center;
  height:34px;padding:0 15px;border-radius:999px;font-size:13px;
  color:var(--text-sub);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .25s;
}
a.tag-pill:hover{color:#fff;background:rgba(47,107,255,.85);border-color:rgba(47,107,255,.95)}
.tag-deep{color:#BFD4FF;border-color:rgba(47,107,255,.35)}
.wall-note{margin-top:18px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:13.5px;color:var(--text-weak)}

/* ===== 收录规范 ===== */
.rule-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.rule-grid{grid-template-columns:repeat(3,1fr)}}
.rule-card{padding:22px;border-radius:var(--r-md);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));transition:transform .3s,border-color .3s}
.rule-card:hover{transform:translateY(-3px);border-color:var(--line-hot)}
.rule-no{font-family:var(--font-mono);font-size:12px;color:var(--accent);letter-spacing:.14em}
.rule-card h3{font-size:16.5px;margin-top:8px;font-weight:700}
.rule-card p{font-size:13.8px;color:var(--text-sub);margin-top:8px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px}
.faq-item{border-radius:var(--r-md);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));overflow:hidden;transition:border-color .25s,background .25s}
.faq-item.is-open{border-color:var(--line-hot);background:rgba(47,107,255,.08)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 18px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:15.5px;font-weight:600;
}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-hot);color:var(--accent);font-size:15px;line-height:1;transition:transform .2s;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 18px 18px;font-size:14px;color:var(--text-sub)}

/* ===== 订阅表单 ===== */
.sub-band{
  padding:26px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(140deg,rgba(47,107,255,.16),rgba(255,255,255,.02) 60%),
    rgba(255,255,255,.02);
  backdrop-filter:blur(14px);
  display:grid;gap:22px;
}
@media(min-width:1024px){.sub-band{grid-template-columns:6fr 6fr;padding:34px;align-items:center}}
.sub-band h2{font-size:22px;font-weight:700;line-height:1.35}
.sub-band p{color:var(--text-sub);font-size:14px;margin-top:10px}
.sub-form{display:grid;gap:14px}
.field label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:8px}
.field input,.field select{
  width:100%;height:48px;padding:0 16px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .25s,box-shadow .25s;
}
.field input::placeholder{color:var(--text-weak)}
.field input:focus,.field select:focus{border-color:var(--line-hot);box-shadow:0 0 0 4px rgba(47,107,255,.18)}
.form-row{display:grid;gap:14px}
@media(min-width:640px){.form-row{grid-template-columns:1fr 1fr}}
.form-note{font-size:12.5px;color:var(--text-weak);line-height:1.6}
.inline-ok{
  display:none;font-size:13px;color:#0C2C25;background:rgba(33,230,193,.85);
  border-radius:12px;padding:10px 14px;
}
.inline-ok.is-on{display:block}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,20,36,.9),rgba(7,11,20,1));
  padding:56px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,107,255,0),rgba(47,107,255,.7),rgba(33,230,193,.5),rgba(47,107,255,0));
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-title{font-size:13px;letter-spacing:.14em;color:var(--text-weak);font-family:var(--font-mono);margin-bottom:14px;text-transform:uppercase}
.footer-links li{margin-bottom:9px}
.footer-links a{font-size:14px;color:var(--text-sub);transition:color .25s}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:38px;padding-top:18px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:var(--text-weak);
}

/* ===== 移动端 ===== */
@media(max-width:1023px){
  .nav-search{display:none}
  .nav-cta{display:none}
  .menu-btn{display:inline-flex}
}
@media(max-width:767px){
  .cat-head{padding:24px 0 30px}
  .stat-panel{grid-template-columns:repeat(3,1fr)}
  .stat b{font-size:17px}
  .rank-thumb{width:74px}
  .rank-meta{display:none}
  .sec{padding:56px 0}
}
@media(max-width:520px){
  .brand-sub{display:none}
  .cat-h1{font-size:26px}
  .stat-panel{gap:8px}
  .stat{padding:10px 8px}
  .stat b{font-size:15px}
  .stat span{font-size:11px}
  .toolbar{padding:12px}
  .rank-no{font-size:17px;min-width:30px}
}