:root{
  --bg:#08080C;
  --bg-2:#0C0C14;
  --panel:#101018;
  --panel-2:#14141F;
  --line:#23233A;
  --line-2:#2E2E4A;
  --purple:#8B5CF6;
  --purple-l:#B69CFF;
  --purple-d:#5B21B6;
  --mint:#C8E6A0;
  --text:#E8E6F4;
  --sub:#A8A5BE;
  --muted:#7C7994;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  color:var(--text);background:var(--bg);line-height:1.85;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.35;font-weight:700}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 26px}

/* ============ 顶栏：近黑 + 紫线 ============ */
.top{
  position:sticky;top:0;z-index:90;background:rgba(8,8,12,.92);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.top.on{box-shadow:0 10px 30px rgba(0,0,0,.5);border-bottom-color:var(--line-2)}
.top-in{display:flex;align-items:center;height:68px;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand img{width:36px;height:36px;border:1px solid var(--line-2);border-radius:8px;background:#0E0E16}
.brand-t b{display:block;font-family:var(--mono);font-size:17px;letter-spacing:.5px;line-height:1.2;color:#F4F2FF}
.brand-t small{display:block;font-family:var(--mono);font-size:9px;letter-spacing:1.6px;color:var(--muted);margin-top:4px;text-transform:uppercase}
.nav{display:flex;gap:22px;margin-left:auto;font-size:13px;font-weight:600;color:var(--sub)}
.nav a{position:relative;padding:4px 0}
.nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--purple),var(--purple-l));transition:right .25s ease;
}
.nav a:hover{color:#EDE9FF}
.nav a:hover::after{right:0}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;color:var(--text);padding:4px}
.cta{
  flex:none;background:var(--purple);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.4px;
  padding:10px 20px;border-radius:6px;box-shadow:0 0 0 1px rgba(182,156,255,.45),0 6px 18px rgba(139,92,246,.35);
}
.cta:hover{background:var(--purple-l);color:#1A1030}

/* ============ 英雄区：网格底 + 紫光 ============ */
.hero{
  position:relative;overflow:hidden;padding:64px 0 60px;
  background:
    radial-gradient(680px 460px at 82% -6%,rgba(139,92,246,.26),transparent 72%),
    radial-gradient(460px 360px at 6% 92%,rgba(200,230,160,.07),transparent 70%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 44px),
    linear-gradient(180deg,#0A0A11 0%,#07070B 100%);
}
.hero::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(139,92,246,.7),transparent);
}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:48px;align-items:center;position:relative;z-index:1}
.kick{
  display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:1.4px;
  color:var(--mint);border:1px solid rgba(200,230,160,.3);border-radius:4px;
  padding:4px 10px;background:rgba(200,230,160,.06);margin-bottom:18px;
}
.hero h1{
  font-family:var(--mono);font-size:74px;line-height:1;letter-spacing:-2.5px;
  margin-bottom:16px;color:#F6F4FF;font-weight:800;
  text-shadow:0 0 32px rgba(139,92,246,.5);
}
.hero h1::before{content:"~/ ";font-size:26px;color:var(--purple);letter-spacing:0;vertical-align:16px}
.hero .lead{font-size:18.5px;font-weight:700;color:#E3DEFF;margin-bottom:13px;letter-spacing:.5px}
.hero .desc{font-size:14.6px;color:#A9A5C4;max-width:545px;margin-bottom:26px;line-height:2}
.acts{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;background:var(--purple);color:#fff;
  padding:13px 28px;border-radius:6px;font-weight:800;font-size:15px;
  box-shadow:0 0 0 1px rgba(182,156,255,.5),0 10px 26px rgba(91,33,182,.45);
}
.btn svg{width:17px;height:17px}
.btn:hover{background:var(--purple-l);color:#170C2E;transform:translateY(1px)}
.ghost{
  display:inline-flex;align-items:center;padding:12px 20px;border-radius:6px;
  border:1px solid var(--line-2);color:var(--purple-l);font-size:13.5px;font-weight:700;
  background:rgba(139,92,246,.06);
}
.ghost:hover{border-color:var(--purple);background:rgba(139,92,246,.16)}
.facts{
  display:flex;flex-wrap:wrap;margin-top:30px;padding-top:16px;border-top:1px solid var(--line);
}
.facts div{padding:0 20px;border-left:1px solid var(--line)}
.facts div:first-child{padding-left:0;border-left:0}
.facts b{display:block;font-size:12.5px;color:#DDD8F4;letter-spacing:.4px}
.facts span{display:block;font-size:11px;color:var(--muted);margin-top:3px;font-family:var(--mono)}

/* 右侧：终端 + 设备 */
.rig{position:relative;height:506px;z-index:1}
.term{
  position:absolute;left:0;top:0;width:66%;z-index:4;
  background:#0D0D16;border:1px solid var(--line-2);border-radius:8px;
  box-shadow:0 22px 50px rgba(0,0,0,.65),0 0 0 1px rgba(139,92,246,.18);
  transform:rotate(-1.4deg);
}
.term-bar{
  display:flex;align-items:center;gap:5px;padding:9px 12px;
  border-bottom:1px solid var(--line);background:#12121C;border-radius:8px 8px 0 0;
}
.term-bar i{width:7px;height:7px;border-radius:50%;background:#3A3A56}
.term-bar i:first-child{background:var(--purple)}
.term-bar i:nth-child(2){background:var(--mint)}
.term-bar em{
  margin-left:8px;font-style:normal;font-family:var(--mono);font-size:9.5px;
  color:var(--muted);letter-spacing:.4px;
}
.code{padding:12px 13px 4px}
.code div{
  font-family:var(--mono);font-size:10.6px;line-height:1.95;color:#9E9AB8;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.code .k{color:var(--purple-l)}
.code .s{color:var(--mint)}
.code .v{color:#F3B562}
.term-foot{
  display:flex;align-items:center;gap:7px;border-top:1px solid var(--line);
  padding:7px 13px;font-family:var(--mono);font-size:9.5px;color:var(--muted);
}
.term-foot .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px var(--mint)}
.screen{
  position:absolute;right:0;top:56px;width:58%;height:398px;margin:0;z-index:2;
  background:#0B0B13;border:1px solid var(--line-2);border-radius:12px;padding:7px;
  box-shadow:0 22px 54px rgba(0,0,0,.7),0 0 26px rgba(139,92,246,.22);
}
.screen img{width:100%;height:100%;object-fit:cover;object-position:top;border-radius:7px}
.screen.mini{
  left:2%;right:auto;top:auto;bottom:0;width:27%;height:246px;padding:5px;z-index:5;
  transform:rotate(2deg);border-color:rgba(200,230,160,.28);
  box-shadow:0 18px 40px rgba(0,0,0,.7),0 0 22px rgba(200,230,160,.14);
}

/* ============ 通用区块 ============ */
.sec{padding:68px 0;background:var(--bg)}
section[id]{scroll-margin-top:80px}
.band{
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.016) 0 1px,transparent 1px 60px),
    var(--bg-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.hd2{display:grid;grid-template-columns:104px 1fr;gap:18px;align-items:start;margin-bottom:32px}
.hd2 .no{
  font-family:var(--mono);font-size:10px;letter-spacing:1px;color:var(--purple-l);
  border-top:1px solid var(--purple);padding-top:10px;white-space:nowrap;
}
.hd2 h2{font-size:31px;letter-spacing:1.5px;margin-bottom:8px;color:#F2EFFF}
.hd2 p{font-size:14.2px;color:var(--sub);max-width:800px}

/* 特色：配置块 */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:8px;
  padding:19px 20px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--purple),transparent);opacity:.7;
}
.card .n{
  display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.8px;
  color:var(--mint);padding-bottom:8px;border-bottom:1px dashed var(--line-2);
}
.card h4{font-size:17.5px;letter-spacing:.6px;margin:12px 0 7px;color:#EFEBFF}
.card p{font-size:13.4px;color:#A29EBE;line-height:1.92}
.card:hover{transform:translateY(-3px);border-color:rgba(139,92,246,.6);box-shadow:0 16px 34px rgba(0,0,0,.5),0 0 22px rgba(139,92,246,.14)}

/* 界面：大窗 + 三窗 */
.spread{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
.spread figure{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.bar{
  display:flex;align-items:center;gap:5px;padding:8px 11px;
  background:#0E0E17;border-bottom:1px solid var(--line);
}
.bar i{width:6px;height:6px;border-radius:50%;background:#3A3A56}
.bar i:first-child{background:var(--purple)}
.bar em{
  margin-left:7px;font-style:normal;font-family:var(--mono);font-size:9px;
  letter-spacing:.6px;color:var(--muted);
}
.big img{width:100%;height:520px;object-fit:cover;object-position:top}
.big figcaption{font-family:var(--mono);font-size:10.5px;color:var(--muted);padding:9px 12px 11px;letter-spacing:.6px}
.strip{display:grid;gap:12px}
.strip figure{display:grid;grid-template-columns:112px 1fr;align-items:center;overflow:hidden}
.strip img{width:112px;height:140px;object-fit:cover;object-position:top}
.strip figcaption{font-family:var(--mono);font-size:10.5px;color:var(--sub);padding:0 14px;letter-spacing:.4px}
.strip .bar{grid-column:1 / -1}

/* 指南：命令行步骤 */
.steps{list-style:none;position:relative;max-width:880px;padding-left:0}
.steps::before{
  content:"";position:absolute;left:17px;top:12px;bottom:18px;width:1px;
  background:linear-gradient(180deg,var(--purple),rgba(139,92,246,.1));
}
.steps li{position:relative;padding:0 0 20px 56px;font-size:14.2px;color:#B3AFCB;line-height:1.9}
.steps li:last-child{padding-bottom:2px}
.steps b{
  position:absolute;left:0;top:0;width:36px;height:30px;border-radius:5px;
  background:var(--panel);border:1px solid var(--line-2);color:var(--purple-l);
  display:grid;place-items:center;font-family:var(--mono);font-size:11px;font-weight:800;
}
.gnote{
  margin-top:18px;max-width:880px;border-left:2px solid var(--mint);
  background:rgba(200,230,160,.07);padding:12px 16px;font-size:13px;color:#AFAEC0;
}

/* 答疑 */
.qa{border-bottom:1px solid var(--line)}
.qa-item{
  display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start;
  padding:20px 0;border-top:1px solid var(--line);
}
.qa-item .qn{
  font-family:var(--mono);font-size:11px;color:var(--purple);padding-top:3px;letter-spacing:.6px;
}
.qa-item h3{font-size:16.5px;letter-spacing:.4px;margin-bottom:7px;color:#EFEBFF}
.qa-item p{font-size:13.8px;color:#A29EBE;line-height:1.92}

/* 评价 */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rev-card{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:8px;
  padding:22px 20px 16px;border-top:1px solid rgba(139,92,246,.7);
}
.rev-card::before{
  content:">";position:absolute;top:8px;right:14px;font-family:var(--mono);
  font-size:26px;line-height:1;color:rgba(139,92,246,.28);
}
.rev-card:nth-child(2){margin-top:12px}
.rev-card blockquote{position:relative;z-index:1;font-size:13.4px;color:#B3AFCB;line-height:1.95}
.rev-card .who{
  display:flex;align-items:center;gap:8px;margin-top:14px;padding-top:10px;
  border-top:1px dashed var(--line-2);font-size:10.8px;color:var(--muted);
}
.rev-card .who i{
  width:23px;height:23px;border-radius:5px;background:rgba(139,92,246,.18);color:var(--purple-l);
  font-style:normal;font-size:10.5px;font-weight:800;display:grid;place-items:center;
}
.rev-card .who time{font-family:var(--mono);letter-spacing:0}

/* ============ 下载：紫光终端 ============ */
.get{
  position:relative;overflow:hidden;padding:66px 0 68px;text-align:center;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.02) 0 1px,transparent 1px 40px),
    radial-gradient(560px 360px at 50% 0%,rgba(139,92,246,.3),transparent 74%),
    #07070B;
  border-top:1px solid var(--line);
}
.get::before{
  content:"";position:absolute;left:50%;top:24px;width:420px;height:420px;margin-left:-210px;
  border:1px dashed rgba(139,92,246,.22);border-radius:50%;
}
.get-in{position:relative;z-index:1}
.dlogo{display:flex;align-items:center;justify-content:center;gap:11px;margin-bottom:14px}
.dlogo img{width:46px;height:46px;border-radius:8px;border:1px solid var(--line-2);background:#0E0E16}
.dlogo em{font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:2.4px;color:var(--muted)}
.get h2{font-size:34px;letter-spacing:1.5px;margin-bottom:12px;color:#F5F2FF}
.get h2 em{font-style:normal;font-family:var(--mono);color:var(--purple-l);letter-spacing:-.5px}
.get p{font-size:13.9px;color:#A8A4C2;max-width:660px;margin:0 auto 20px;line-height:1.95}
.dm{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:24px}
.dm span{
  font-size:11px;border:1px solid var(--line-2);border-radius:999px;
  padding:3px 12px;color:#B4B0CC;background:rgba(139,92,246,.06);
}
.get .btn{box-shadow:0 0 0 1px rgba(182,156,255,.5),0 12px 30px rgba(91,33,182,.5)}

/* ============ 页脚 ============ */
.ft{background:#05050A;color:#8B88A3;padding:34px 0 26px;font-size:12.2px;border-top:1px solid var(--line)}
.ft-in{display:flex;flex-wrap:wrap;gap:10px 26px;align-items:flex-start;justify-content:space-between}
.ft-brand{display:flex;align-items:center;gap:9px;color:#EFEBFF;font-weight:700;font-size:13.5px;font-family:var(--mono);letter-spacing:.6px}
.ft-brand img{width:26px;height:26px;border:1px solid var(--line-2);border-radius:6px}
.ft p{max-width:520px;line-height:1.9;color:#8B88A3}
.ft-links{display:flex;gap:16px;flex-wrap:wrap;font-size:11.8px}
.ft-links a:hover{color:var(--purple-l)}
.ft-copy{width:100%;border-top:1px solid var(--line);padding-top:13px;font-size:11px;color:#605D76;line-height:1.9}

/* ============ 返回顶部 ============ */
.backtop{
  position:fixed;right:24px;bottom:88px;z-index:70;width:42px;height:42px;border-radius:8px;
  background:rgba(16,16,24,.94);border:1px solid var(--line-2);color:var(--purple-l);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 8px 20px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transition:opacity .2s ease;
}
.backtop.on{opacity:1;visibility:visible}
.backtop:hover{background:var(--purple);color:#fff;border-color:var(--purple)}

/* ============ 响应式 960 ============ */
@media (max-width:960px){
  .nav{
    display:none;position:absolute;top:68px;left:0;right:0;margin-left:0;
    background:#0A0A12;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:6px 26px 12px;
  }
  .nav.open{display:flex}
  .nav a{padding:10px 0;border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .cta{padding:9px 14px;font-size:11.5px}
  .hero{padding:48px 0 50px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:58px}
  .hero .desc{max-width:none}
  .rig{max-width:480px;width:100%;height:462px;margin:0 auto}
  .feat-grid{grid-template-columns:1fr 1fr}
  .spread{grid-template-columns:1fr}
  .big img{height:420px}
  .strip{grid-template-columns:repeat(3,1fr)}
  .strip figure{display:block}
  .strip img{width:100%;height:auto;aspect-ratio:3/4}
  .strip figcaption{display:block;padding:9px 11px 11px;font-size:10px}
  .rev-grid{grid-template-columns:1fr 1fr}
  .rev-card:nth-child(2){margin-top:0}
  .rev-card:nth-child(3){grid-column:1 / -1}
}

/* ============ 响应式 600 ============ */
@media (max-width:600px){
  body{font-size:15px}
  .wrap{padding:0 18px}
  .top-in{height:62px;gap:10px}
  .brand img{width:32px;height:32px}
  .brand-t b{font-size:15.5px}
  .brand-t small{font-size:8.5px;letter-spacing:1.2px}
  .nav{top:62px;padding:4px 18px 10px}
  .cta{padding:8px 11px;font-size:10.8px}
  .hero{padding:36px 0 40px}
  .hero h1{font-size:44px;letter-spacing:-1.5px}
  .hero h1::before{font-size:19px;vertical-align:9px}
  .hero .lead{font-size:16px}
  .hero .desc{font-size:13.8px}
  .kick{font-size:10px;letter-spacing:.6px;padding:3px 8px}
  .facts div{padding:0 12px}
  .facts b{font-size:11.5px}
  .facts span{font-size:9.6px}
  .rig{height:auto;display:grid;grid-template-columns:1fr 90px;gap:12px;max-width:360px}
  .term{position:static;grid-column:1 / -1;width:100%;transform:none}
  .screen{position:static;width:100%;height:286px;transform:none}
  .screen.mini{width:100%;height:286px;transform:none}
  .code div{font-size:9.4px}
  .term-foot{font-size:9px}
  .sec{padding:44px 0}
  .hd2{grid-template-columns:1fr;gap:8px;margin-bottom:22px}
  .hd2 .no{display:inline-block;border-top:0;border-left:2px solid var(--purple);padding:0 0 0 8px}
  .hd2 h2{font-size:24px;letter-spacing:.8px}
  .hd2 p{font-size:13.4px}
  .feat-grid{grid-template-columns:1fr}
  .card{padding:17px 16px 19px}
  .strip{grid-template-columns:1fr}
  .strip figure{grid-template-columns:96px 1fr;grid-template-rows:auto 1fr;display:grid}
  .strip img{width:96px;height:118px}
  .strip figcaption{padding:12px}
  .steps li{padding-left:50px;font-size:13.6px}
  .steps::before{left:16px}
  .steps b{width:34px;height:28px;font-size:10.5px}
  .qa-item{grid-template-columns:36px 1fr;gap:10px}
  .qa-item h3{font-size:15.5px}
  .rev-grid{grid-template-columns:1fr}
  .rev-card:nth-child(3){grid-column:auto}
  .get{padding:46px 0 50px}
  .get::before{width:290px;height:290px;margin-left:-145px}
  .get h2{font-size:25px}
  .dm span{font-size:10.4px;padding:2px 10px}
  .ft-in{flex-direction:column}
  .backtop{right:14px;bottom:74px;width:38px;height:38px}
}