:root{--bg:#0D0A14;--bg2:#09070F;--panel:#161022;--panel2:#1E1630;--title:#F6F0FF;--text:#E4DCF2;--muted:#B3A4C9;--sub:#7E6F94;--purple:#9B5DE5;--deep:#7B2CBF;--light:#C77DFF;--mist:#C9B6E4;--lime:#B8E05A;--border:rgba(155,93,229,.22);--shadow:0 16px 44px rgba(0,0,0,.45);--w:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}.wrap{width:min(var(--w),calc(100% - 32px));margin:auto}.topline{height:18px;background:var(--deep);color:#fff;position:fixed;inset:0 0 auto;z-index:80;font-size:12px}.topline-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.text-btn,.icon-btn,.drawer-btn{border:0;background:none;color:#fff;cursor:pointer}.text-btn{height:18px;padding:0 4px}.sitebar{position:fixed;top:18px;left:0;right:0;height:62px;background:#0b0811;border-bottom:1px solid var(--border);z-index:79}.sitebar-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.brand{justify-self:start;min-height:44px;display:flex;align-items:center}.logo-img{max-height:36px;width:auto;object-fit:contain}.drawer-btn{justify-self:center;min-width:88px;height:44px;border:1px solid var(--border);background:var(--panel2);border-radius:12px}.app-link{justify-self:end;min-height:44px;display:flex;align-items:center;color:#fff}.keybar{position:fixed;top:80px;left:0;right:0;height:40px;background:#1a1128;border-bottom:1px solid var(--border);z-index:78}.keybar-inner{height:40px;display:flex;align-items:center;gap:8px}.keybar a{padding:5px 12px;border-radius:8px;color:var(--mist)}.keybar a.active{background:var(--purple);color:#fff}.page-shell{padding-top:120px;min-height:70vh}.hero,.section{padding:56px 0}.section.compact{padding:34px 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8px;border-radius:8px;background:var(--panel2);color:var(--mist);white-space:nowrap}.prose{max-width:860px}.prose p{color:var(--text)}.prose h2{margin-top:34px}.footer{background:#07050C;padding:50px 0 calc(72px + env(safe-area-inset-bottom));border-top:1px solid var(--border)}.footer-brand{display:flex;justify-content:space-between;gap:30px;align-items:center}.footer-brand p{max-width:720px;color:var(--mist)}.footer-mark{display:flex;align-items:center;gap:12px}.footer-mark div{display:flex;flex-direction:column}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:32px}.footer-grid div{display:grid;gap:8px}.footer-grid a{color:var(--mist)}.copyright{margin-top:32px;color:var(--sub);border-top:1px solid var(--border);padding-top:18px}.drawer{position:fixed;top:0;bottom:0;left:0;width:min(380px,86vw);padding:20px;background:#0b0812;z-index:100;overflow:auto;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:.25s 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