/* GornerOS 官网 · 全局样式（深空科技风） */
:root{
  --bg:#05060c;
  --bg-2:#0a0c18;
  --panel:rgba(18,21,38,.72);
  --panel-solid:#111427;
  --line:rgba(124,140,255,.16);
  --line-strong:rgba(124,140,255,.34);
  --text:#e8ecff;
  --muted:#8b93b8;
  --dim:#5d6488;
  --brand:#7c5cff;
  --brand-2:#2f9bff;
  --green:#22c55e;
  --amber:#f59e0b;
  --radius:16px;
  --maxw:1180px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 600px at 12% -8%,rgba(124,92,255,.22),transparent 60%),
    radial-gradient(800px 520px at 92% 4%,rgba(47,155,255,.16),transparent 62%),
    radial-gradient(700px 500px at 50% 108%,rgba(34,197,94,.10),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ===== 顶部导航 ===== */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(6,8,16,.66);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:13px 22px;display:flex;align-items:center;gap:22px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.4px}
.logo .orb{width:26px;height:26px;border-radius:50%;background:conic-gradient(from 200deg,var(--brand),var(--brand-2),var(--green),var(--brand));box-shadow:0 0 18px rgba(124,92,255,.8)}
.logo small{color:var(--dim);font-weight:600;font-size:11px;letter-spacing:2px}
.nav-links{display:flex;gap:20px;margin-left:auto;align-items:center;font-size:14px}
.nav-links a{color:var(--muted);transition:.2s}
.nav-links a:hover,.nav-links a.on{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:11px;padding:10px 18px;font-size:14px;font-weight:600;border:1px solid var(--line-strong);background:rgba(124,92,255,.10);color:var(--text);cursor:pointer;transition:.2s}
.btn:hover{background:rgba(124,92,255,.22);transform:translateY(-1px)}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border-color:transparent;box-shadow:0 8px 26px rgba(124,92,255,.36)}
.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent}
.btn.sm{padding:7px 13px;font-size:13px;border-radius:9px}

/* ===== Hero ===== */
.hero{position:relative;padding:82px 0 66px;text-align:center}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(124,92,255,.10);font-size:12.5px;color:var(--muted);margin-bottom:22px}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.4}}
.hero h1{font-size:clamp(34px,6vw,58px);line-height:1.08;font-weight:850;letter-spacing:-1px}
.hero h1 .grad{background:linear-gradient(120deg,var(--brand),var(--brand-2) 55%,var(--green));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{color:var(--muted);font-size:clamp(15px,2.2vw,18px);max-width:680px;margin:20px auto 0}
.hero .cta{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.stats{display:flex;gap:34px;justify-content:center;margin-top:52px;flex-wrap:wrap}
.stat .n{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums}
.stat .l{color:var(--dim);font-size:12.5px;letter-spacing:1px}

/* ===== 通用段落 ===== */
section{padding:60px 0}
.sec-head{text-align:center;margin-bottom:42px}
.sec-head h2{font-size:clamp(24px,3.6vw,34px);font-weight:800;letter-spacing:-.4px}
.sec-head p{color:var(--muted);margin-top:12px;font-size:15px}
.eyebrow{color:var(--brand-2);font-size:12.5px;letter-spacing:3px;font-weight:700;text-transform:uppercase;margin-bottom:10px}

/* ===== 产品卡 ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:18px}
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;backdrop-filter:blur(10px);transition:.25s;overflow:hidden}
.card::after{content:"";position:absolute;inset:0;border-radius:var(--radius);opacity:0;transition:.25s;box-shadow:0 0 0 1px var(--accent,#7c5cff),0 18px 44px -18px var(--accent,#7c5cff)}
.card:hover{transform:translateY(-4px);border-color:transparent}
.card:hover::after{opacity:1}
.card .ico{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;font-size:24px;background:rgba(124,92,255,.14);border:1px solid var(--line);margin-bottom:16px}
.card h3{font-size:18px;font-weight:750;display:flex;align-items:center;gap:8px}
.card h3 .ver{font-size:11px;font-family:var(--mono);color:var(--muted);border:1px solid var(--line);padding:2px 7px;border-radius:6px;font-weight:600}
.card .tag{color:var(--accent,#7c5cff);font-size:12.5px;font-weight:650;margin-top:4px}
.card p.desc{color:var(--muted);font-size:13.5px;margin-top:12px;min-height:60px}
.card .stack{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.chip{font-size:11px;color:var(--dim);border:1px solid var(--line);padding:3px 9px;border-radius:999px;font-family:var(--mono)}
.card .act{display:flex;gap:10px;margin-top:18px;align-items:center}

/* ===== 特性 ===== */
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.feat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.feat .k{font-size:22px;margin-bottom:12px}
.feat h4{font-size:15.5px;font-weight:720;margin-bottom:8px}
.feat p{color:var(--muted);font-size:13.5px}

/* ===== 下载器 / 安装器 ===== */
.tool{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:26px;backdrop-filter:blur(12px)}
.steps{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.step-pill{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);border:1px solid var(--line);padding:7px 14px;border-radius:999px}
.step-pill.on{color:var(--text);border-color:var(--line-strong);background:rgba(124,92,255,.10)}
.step-pill .num{width:19px;height:19px;border-radius:50%;display:grid;place-items:center;font-size:11px;background:rgba(124,92,255,.20);font-weight:700}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.tab{display:flex;align-items:center;gap:9px;padding:11px 16px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.02);cursor:pointer;font-size:14px;transition:.2s}
.tab:hover{border-color:var(--line-strong)}
.tab.on{border-color:transparent;background:rgba(124,92,255,.16);box-shadow:0 0 0 1px var(--line-strong)}
.tab .ico{font-size:18px}
.ver-list{display:flex;flex-direction:column;gap:10px}
.ver{display:flex;align-items:flex-start;gap:16px;padding:16px;border-radius:13px;border:1px solid var(--line);background:rgba(255,255,255,.02);transition:.2s;cursor:pointer}
.ver:hover{border-color:var(--line-strong)}
.ver.on{border-color:transparent;box-shadow:0 0 0 1.5px var(--brand);background:rgba(124,92,255,.10)}
.ver .vnum{font-family:var(--mono);font-weight:700;font-size:15px;min-width:78px}
.ver .vmeta{flex:1}
.ver .vmeta .row1{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.ver .notes{color:var(--muted);font-size:13px;margin-top:7px;white-space:pre-line;line-height:1.65}
.tagch{font-size:10.5px;font-weight:700;letter-spacing:.5px;padding:2px 8px;border-radius:999px;text-transform:uppercase}
.tagch.stable{color:#0b1a10;background:var(--green)}
.tagch.legacy{color:#2a1d00;background:var(--amber)}
.tagch.beta{color:#04121f;background:var(--brand-2)}
.dl-panel{margin-top:22px;border-top:1px dashed var(--line);padding-top:22px}
.dl-opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:14px}
.dl-opt{border:1px solid var(--line);border-radius:13px;padding:18px;background:rgba(255,255,255,.02);display:flex;flex-direction:column;gap:9px}
.dl-opt .t{font-weight:700;font-size:14.5px;display:flex;align-items:center;gap:8px}
.dl-opt .s{color:var(--dim);font-size:12.5px;flex:1}
.code{margin-top:18px;background:#07080f;border:1px solid var(--line);border-radius:12px;padding:16px;font-family:var(--mono);font-size:12.5px;color:#b9c6ff;white-space:pre-wrap;position:relative;overflow:auto}
.code .cp{position:absolute;top:10px;right:10px}
.muted{color:var(--muted)}
.empty{color:var(--dim);text-align:center;padding:40px 0}

/* ===== 文档页 ===== */
.doc{display:grid;grid-template-columns:220px 1fr;gap:30px;align-items:start}
.doc-side{position:sticky;top:80px;border:1px solid var(--line);border-radius:14px;padding:16px;background:var(--panel)}
.doc-side a{display:block;color:var(--muted);font-size:13.5px;padding:7px 10px;border-radius:8px;transition:.18s}
.doc-side a:hover{color:var(--text);background:rgba(124,92,255,.12)}
.doc-body{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:32px}
.doc-body h2{font-size:22px;margin:26px 0 12px;font-weight:800}
.doc-body h2:first-child{margin-top:0}
.doc-body h3{font-size:16px;margin:20px 0 8px;color:var(--text);font-weight:700}
.doc-body p{color:var(--muted);margin:9px 0;font-size:14px}
.doc-body ul{margin:10px 0 10px 20px;color:var(--muted);font-size:14px}
.doc-body li{margin:5px 0}
.doc-body code{font-family:var(--mono);font-size:12.5px;background:rgba(124,92,255,.14);padding:2px 7px;border-radius:6px;color:#c3cdff}
.doc-body pre{background:#07080f;border:1px solid var(--line);border-radius:12px;padding:16px;overflow:auto;margin:14px 0}
.doc-body pre code{background:none;padding:0;color:#b9c6ff;font-size:12.5px;line-height:1.7}
.doc-body table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px}
.doc-body th,.doc-body td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.doc-body th{color:var(--text);font-weight:700;background:rgba(124,92,255,.08)}
.doc-body td{color:var(--muted)}

/* ===== 页脚 ===== */
footer{border-top:1px solid var(--line);margin-top:40px;padding:40px 0 60px;color:var(--dim);font-size:13px}
.foot-in{max-width:var(--maxw);margin:0 auto;padding:0 22px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot-in a{color:var(--muted)}
.foot-in a:hover{color:var(--text)}

/* ===== Toast ===== */
.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,26px);background:#12152a;border:1px solid var(--line-strong);padding:12px 20px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:.28s;z-index:200;box-shadow:0 14px 40px rgba(0,0,0,.5)}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media(max-width:760px){
  .nav-links a:not(.btn){display:none}
  .doc{grid-template-columns:1fr}
  .doc-side{position:static;display:none}
  section{padding:44px 0}
}