:root{
    --bg:#070c16;
    --bg-2:#0a1220;
    --panel:#0c1524;
    --panel-2:#101c2e;
    --line:#1b2838;
    --line-bright:#2c4055;
    --text:#e8f1ff;
    --muted:#8796aa;
    --cyan:#00e5ff;
    --blue:#2f6bff;
    --grad:linear-gradient(120deg,#00e5ff 0%,#2f6bff 100%);
    --mono:"Cascadia Mono","SFMono-Regular",Consolas,"Courier New",monospace;
    --sans:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;
    --max:1240px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  section[id],footer[id]{scroll-margin-top:84px;}
  body{
    margin:0;
    background:
      radial-gradient(1200px 780px at 82% -12%,rgba(0,229,255,.10),transparent 62%),
      radial-gradient(1000px 700px at 8% 4%,rgba(47,107,255,.13),transparent 62%),
      linear-gradient(180deg,#070c16 0%,#0a1322 42%,#070c16 100%);
    color:var(--text);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  .container{max-width:var(--max);margin:0 auto;padding:0 32px;}

  /* 噪点 + 点阵 + 扫描线氛围 */
  body::before{
    content:"";
    position:fixed;inset:0;z-index:0;pointer-events:none;
    opacity:.07;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  }
  body::after{
    content:"";
    position:fixed;inset:0;z-index:0;pointer-events:none;
    background-image:radial-gradient(rgba(0,229,255,.12) 1px,transparent 1px);
    background-size:26px 26px;
    opacity:.5;
    mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 45%,transparent 78%);
    -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 45%,transparent 78%);
  }

  /* 极光背景 */
  .aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;}
  .aurora span{
    position:absolute;display:block;border-radius:50%;
    opacity:.55;
  }
  .aurora .a1{
    width:620px;height:620px;left:-140px;top:-220px;
    background:radial-gradient(circle,rgba(0,229,255,.34) 0%,rgba(0,229,255,.14) 38%,transparent 70%);
    animation:float1 22s ease-in-out infinite alternate;
  }
  .aurora .a2{
    width:840px;height:840px;right:-240px;top:-340px;
    background:radial-gradient(circle,rgba(47,107,255,.36) 0%,rgba(47,107,255,.15) 40%,transparent 70%);
    animation:float2 26s ease-in-out infinite alternate;
  }
  .aurora .a3{
    width:560px;height:560px;left:36%;bottom:-420px;
    background:radial-gradient(circle,rgba(80,120,255,.24) 0%,rgba(80,120,255,.10) 42%,transparent 70%);
    animation:float3 30s ease-in-out infinite alternate;
  }
  @keyframes float1{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(60px,40px,0) scale(1.08)}}
  @keyframes float2{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-70px,60px,0) scale(1.12)}}
  @keyframes float3{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(40px,-50px,0) scale(1.1)}}

  /* 粒子层 */
  #particles{
    position:fixed;inset:0;z-index:1;
    width:100%;height:100%;
    pointer-events:none;
    opacity:.52;
    mask-image:linear-gradient(180deg,#000 0%,#000 55%,transparent 92%);
    -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 55%,transparent 92%);
  }

  /* 内容层 */
  main{position:relative;z-index:3;}

  /* 滚动进场 */
  .reveal{
    opacity:0;
    transform:translateY(14px);
    transition:opacity 1.25s cubic-bezier(.25,.46,.45,.94),transform 1.25s cubic-bezier(.25,.46,.45,.94);
  }
  .reveal.is-in{opacity:1;transform:none;}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none;}
    .aurora span{animation:none;}
  }

  /* 顶部 */
  .site-header{
    position:sticky;top:0;z-index:40;
    background:rgba(7,12,22,.94);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    max-width:var(--max);margin:0 auto;padding:0 32px;height:66px;
    display:flex;align-items:center;justify-content:space-between;
  }
  .brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;white-space:nowrap;letter-spacing:-.01em;}
  .brand-logo{
    width:30px;height:30px;flex:none;display:block;
    border-radius:8px;background:#fff;padding:2px;object-fit:contain;
    box-shadow:0 0 18px rgba(0,229,255,.28);
  }
  .nav{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;}
  .nav::-webkit-scrollbar{display:none;}
  .nav a{
    padding:8px 14px;font-size:13.5px;color:var(--muted);white-space:nowrap;
    transition:color .16s ease;
  }
  .nav a:hover{color:var(--text);}
  .nav a.nav-cta{
    margin-left:14px;padding:9px 18px;
    background:var(--grad);color:#041016;font-weight:600;
    box-shadow:0 0 22px rgba(0,229,255,.28);
  }
  .nav a.nav-cta:hover{filter:brightness(1.08);color:#041016;}

  /* 首屏 */
  .hero{position:relative;padding:88px 0 72px;overflow:hidden;}
  .hero::before{
    content:"";position:absolute;width:760px;height:760px;right:-200px;top:-300px;
    background:radial-gradient(circle,rgba(0,229,255,.18),transparent 62%);
  }
  .hero::after{
    content:"";position:absolute;width:600px;height:600px;left:-220px;bottom:-340px;
    background:radial-gradient(circle,rgba(47,107,255,.20),transparent 64%);
  }
  .hero-grid{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;
  }
  .kicker{
    display:flex;align-items:center;gap:12px;
    font-family:var(--mono);font-size:11.5px;letter-spacing:.18em;
    color:var(--cyan);text-transform:uppercase;margin-bottom:26px;
  }
  .kicker::before{content:"";width:36px;height:1px;background:var(--cyan);box-shadow:0 0 8px var(--cyan);}
  .hero h1{
    margin:0 0 22px;
    font-size:clamp(42px,5vw,72px);
    line-height:1.1;font-weight:800;letter-spacing:-.045em;
  }
  .hero h1 span{
    background:var(--grad);
    -webkit-background-clip:text;background-clip:text;color:transparent;
    text-shadow:0 0 26px rgba(0,229,255,.28);
  }
  .hero p{margin:0;max-width:560px;color:var(--muted);font-size:16px;line-height:1.85;}
  .actions{display:flex;align-items:center;gap:10px;margin-top:34px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;
    height:50px;padding:0 26px;border:1px solid transparent;border-radius:2px;
    font-size:14.5px;font-weight:600;white-space:nowrap;
    transition:background-color .16s ease,border-color .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease;
  }
  .btn-primary{background:var(--grad);color:#041016;box-shadow:0 0 28px rgba(0,229,255,.3);}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 40px rgba(0,229,255,.45);}
  .btn-ghost{background:transparent;color:var(--text);border-color:var(--line-bright);}
  .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 20px rgba(0,229,255,.15);}

  .stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:44px;border-top:1px solid var(--line);}
  .stat{padding:22px 18px 0;}
  .stat:first-child{padding-left:0;}
  .stat:last-child{padding-right:0;}
  .stat + .stat{border-left:1px solid var(--line);}
  .stat b{
    display:block;font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;
    font-size:clamp(24px,2.4vw,32px);font-weight:600;letter-spacing:-.02em;line-height:1.2;
    white-space:nowrap;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .stat b .num-big{font-size:clamp(26px,2.8vw,36px);line-height:0;}
  .stat > span{display:block;margin-top:4px;font-size:12px;color:var(--muted);letter-spacing:.02em;white-space:nowrap;}

  /* 控制台 */
  .console{
    position:relative;
    border:1px solid rgba(0,229,255,.28);
    background:linear-gradient(180deg,rgba(10,16,24,.96),rgba(7,11,18,.96));
    box-shadow:0 0 0 1px rgba(0,229,255,.06),0 30px 80px -50px rgba(0,229,255,.55);
    overflow:hidden;
  }
  .console::before,.console::after{
    content:"";position:absolute;width:12px;height:12px;
    border:1px solid var(--cyan);opacity:.7;z-index:3;
  }
  .console::before{left:-1px;top:-1px;border-right:0;border-bottom:0;}
  .console::after{right:-1px;bottom:-1px;border-left:0;border-top:0;}
  .scan{
    position:absolute;inset:0;z-index:2;pointer-events:none;
    background:repeating-linear-gradient(0deg,rgba(0,229,255,.035) 0 1px,transparent 1px 4px);
  }
  .console-head{
    display:flex;align-items:center;gap:10px;padding:12px 16px;
    border-bottom:1px solid var(--line);
    font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted);
  }
  .live{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);}
  .live::before{
    content:"";width:6px;height:6px;background:var(--cyan);
    box-shadow:0 0 8px var(--cyan);
    animation:pulse 1.8s ease-in-out infinite;
  }
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
  .console-head .sep{flex:1;}
  .console-body{display:grid;grid-template-columns:132px 1fr;min-height:392px;}
  .console-side{border-right:1px solid var(--line);padding:12px 0;}
  .who{padding:10px 14px;font-size:11.5px;color:var(--muted);border-left:2px solid transparent;}
  .who b{display:block;color:var(--text);font-size:12.5px;font-weight:600;}
  .who.active{border-left-color:var(--cyan);background:rgba(0,229,255,.05);}
  .console-main{padding:18px 16px 14px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;z-index:3;}
  .msg{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:14px;}
  .msg.ai{align-items:flex-end;}
  .meta{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:#5f7086;margin-bottom:5px;}
  .meta.ai{color:var(--cyan);}
  .bubble{
    display:block;width:fit-content;max-width:78%;text-align:left;
    padding:9px 12px;font-size:12.5px;line-height:1.65;
    border:1px solid var(--line);background:rgba(13,21,32,.85);color:#d7e3f4;
  }
  .bubble.ai{
    background:rgba(0,229,255,.08);
    border-color:rgba(0,229,255,.45);
    color:#d8fbff;
    box-shadow:0 0 18px rgba(0,229,255,.08);
  }
  .console-foot{
    position:relative;z-index:3;
    display:flex;align-items:center;justify-content:space-between;
    padding:10px 16px;border-top:1px solid var(--line);
    font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:#5f7086;
  }

  /* 数据流条 */
  .hud-strip{
    position:relative;z-index:2;
    margin-top:56px;padding:12px 0;
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    display:flex;flex-wrap:wrap;
    font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:#5f7086;
  }
  .hud-strip span{margin-right:28px;white-space:nowrap;}
  .hud-strip span i{font-style:normal;color:var(--cyan);margin-right:8px;}

  /* 区块 */
  .section{padding:104px 0;border-top:1px solid var(--line);}
  .section-head{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end;margin-bottom:56px;}
  .section-head .left{max-width:560px;}
  .index{
    display:flex;align-items:center;gap:10px;
    font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;
    color:var(--cyan);margin-bottom:18px;
  }
  .index::before{content:"";width:6px;height:6px;border:1px solid var(--cyan);transform:rotate(45deg);box-shadow:0 0 8px rgba(0,229,255,.6);}
  .section h2{margin:0;font-size:clamp(28px,3.4vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.035em;}
  .section-head p{margin:0;color:var(--muted);font-size:15px;line-height:1.85;align-self:end;padding-bottom:6px;}

  .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);}
  .card{
    position:relative;
    background:var(--bg);padding:34px 30px;
    transition:background-color .2s ease,box-shadow .2s ease;
  }
  .card:hover{background:var(--panel);box-shadow:inset 0 0 0 1px rgba(0,229,255,.35),inset 0 0 34px rgba(0,229,255,.05);}
  .card .top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:22px;}
  .card .no{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:#5f7086;}
  .card svg{width:24px;height:24px;color:var(--muted);transition:color .2s ease,filter .2s ease;}
  .card:hover svg{color:var(--cyan);filter:drop-shadow(0 0 6px rgba(0,229,255,.6));}
  .card h3{margin:0 0 10px;font-size:17px;font-weight:700;letter-spacing:-.015em;}
  .card p{margin:0;color:var(--muted);font-size:14px;line-height:1.8;}

  .spot{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));background:transparent;border:1px solid var(--line);border-bottom:0;}
  .spot-item{padding:30px 30px 32px;background:transparent;position:relative;}
  .spot-item + .spot-item{border-left:1px solid var(--line);}
  .spot-item .no{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--cyan);display:block;margin-bottom:14px;}
  .spot-item h3{margin:0 0 8px;font-size:18px;font-weight:700;letter-spacing:-.02em;}
  .spot-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.8;}

  .flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:1px;}
  .step{border-top:1px solid var(--line);border-left:1px solid var(--line);padding:22px 24px 30px;}
  .step:first-child{border-left:0;}
  .step i{display:block;font-style:normal;font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em;margin-bottom:14px;}
  .step b{display:block;font-size:15px;font-weight:700;margin-bottom:4px;}
  .step span{display:block;font-size:12.5px;color:var(--muted);line-height:1.7;}

  /* 下载 */
  .download{
    position:relative;overflow:hidden;
    padding:96px 0;
    background:
      radial-gradient(700px 300px at 78% 0%,rgba(0,229,255,.16),transparent 65%),
      linear-gradient(180deg,#070b12 0%,#08131f 55%,#070b12 100%);
    border-top:1px solid rgba(0,229,255,.28);
  }
  .download::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(0,229,255,.14) 1px,transparent 1px);
    background-size:26px 26px;
    mask-image:linear-gradient(180deg,#000 0%,transparent 75%);
    -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 75%);
  }
  .download-grid{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:end;
  }
  .download h2{margin:0 0 16px;font-size:clamp(34px,4.4vw,58px);line-height:1.1;font-weight:800;letter-spacing:-.045em;}
  .download p{margin:0;max-width:560px;color:var(--muted);font-size:15.5px;line-height:1.85;}
  .download-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
  .download-note{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:#5f7086;}

  /* 下载提示弹窗 */
  .dl-modal{
    position:fixed;inset:0;z-index:80;
    display:none;align-items:center;justify-content:center;
    background:rgba(4,8,16,.62);
    -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  }
  .dl-modal.is-open{display:flex;}
  .dl-card{
    width:min(90vw,400px);padding:26px 24px;
    background:var(--panel-2);border:1px solid var(--line-bright);border-radius:2px;
    box-shadow:0 24px 64px rgba(0,0,0,.6),0 0 0 1px rgba(0,229,255,.1);
  }
  .dl-card h3{margin:0 0 10px;font-size:16px;font-weight:700;color:var(--text);}
  .dl-card p{margin:0;max-width:none;font-size:13.5px;line-height:1.8;color:var(--muted);}

  /* 页脚 */
  .site-footer{
    position:relative;z-index:3;border-top:1px solid var(--line);
    padding:44px 0 26px;
    background:linear-gradient(180deg,rgba(8,14,24,.7),rgba(6,10,17,.9));
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr .9fr;gap:36px;
    align-items:start;
  }
  .footer-brand .brand{margin-bottom:14px;}
  .footer-brand p{margin:0;max-width:300px;color:var(--muted);font-size:13px;line-height:1.75;}
  .footer-col h4{
    margin:0 0 14px;font-size:13.5px;font-weight:700;color:var(--text);letter-spacing:-.01em;
  }
  .footer-col ul{list-style:none;margin:0;padding:0;}
  .footer-col li{margin-bottom:9px;font-size:13px;color:var(--muted);line-height:1.5;}
  .footer-col a{color:var(--muted);text-decoration:none;transition:color .18s ease;}
  .footer-col a:hover{color:var(--cyan);}
  .footer-bottom{
    display:flex;align-items:center;justify-content:center;gap:18px;
    margin-top:32px;padding-top:18px;border-top:1px solid var(--line);
    color:#5f7086;font-size:12px;font-family:var(--mono);letter-spacing:.03em;text-align:center;
  }

  /* 动效 */
  @keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
  .hero .kicker,.hero h1,.hero p,.hero .actions,.hero .stats{animation:rise .7s cubic-bezier(.2,.7,.2,1) both;}
  .hero .kicker{animation-delay:.04s;}
  .hero h1{animation-delay:.1s;}
  .hero p{animation-delay:.16s;}
  .hero .actions{animation-delay:.22s;}
  .hero .stats{animation-delay:.3s;}
  .console{animation:rise .8s cubic-bezier(.2,.7,.2,1) both;animation-delay:.2s;}
  @media (prefers-reduced-motion:reduce){
    .hero .kicker,.hero h1,.hero p,.hero .actions,.hero .stats,.console{animation:none;}
    .scan{animation:none;}
    .live::before{animation:none;}
    html{scroll-behavior:auto;}
  }

  @media (max-width:1080px){
    .hero-grid{grid-template-columns:1fr;gap:44px;}
    .section-head{grid-template-columns:1fr;gap:18px;align-items:start;}
    .download-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
    .grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:760px){
    .container{padding:0 20px;}
    .header-inner{padding:0 20px;height:60px;}
    .nav a{padding:8px 9px;font-size:13px;}
    .nav a.nav-cta{margin-left:6px;padding:8px 13px;}
    .hero{padding:56px 0 44px;}
    .hero h1{font-size:clamp(34px,9vw,44px);}
    .hero p{font-size:15px;}
    .hud-strip span{font-size:10px;margin-right:16px;}
    .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
    .stat{border-left:0;border-bottom:1px solid var(--line);padding:18px 10px 16px 0;}
    .stat:nth-child(odd){border-left:0;}
    .stat:nth-child(even){border-left:1px solid var(--line);padding-left:18px;}
    .stat:nth-last-child(-n+2){border-bottom:0;}
    .console-body{grid-template-columns:104px 1fr;min-height:340px;}
    .section{padding:64px 0;}
    .section h2{font-size:26px;}
    .grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
    .footer-bottom{flex-wrap:wrap;gap:6px 14px;}
    .spot{grid-template-columns:1fr;}
    .flow{grid-template-columns:1fr;}
    .step{border-left:0;}
    .download{padding:64px 0;}
  }
  @media (max-width:520px){
    .footer-grid{grid-template-columns:1fr;}
  }
/* ── 子页面（SEO 落地页） ───────────────────────── */
.doc-hero{padding:88px 0 64px;position:relative;}
.crumbs{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);margin-bottom:20px;}
.crumbs a:hover{color:var(--cyan);}
.doc-hero h1{margin:0 0 20px;font-size:clamp(30px,4.2vw,48px);line-height:1.2;font-weight:800;letter-spacing:-.03em;}
.doc-hero .lead{margin:0 0 28px;max-width:680px;color:var(--muted);font-size:16px;line-height:1.85;}
.doc-hero .actions{display:flex;gap:12px;flex-wrap:wrap;}
.doc-body{max-width:860px;}
.doc-body h3{margin:0 0 12px;font-size:19px;font-weight:700;letter-spacing:-.01em;}
.doc-body p{margin:0 0 16px;color:var(--muted);font-size:14.5px;line-height:1.9;}
.doc-body ul{margin:0 0 18px;padding-left:20px;color:var(--muted);font-size:14.5px;line-height:1.9;}
.doc-block{padding:34px 0;border-top:1px solid var(--line);}
.doc-block:first-child{border-top:0;padding-top:0;}
.faq-item{padding:20px 0;border-top:1px solid var(--line);}
.faq-item b{display:block;margin-bottom:8px;font-size:15px;}
.faq-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.85;}
.sec-more{margin-top:36px;}