*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
.ft-logo{font-size:1rem;font-weight:700;color:#fff;text-decoration:none;display:flex;align-items:center;gap:8px}
.ft-links{display:flex;gap:20px;flex-wrap:wrap}
.ft-links a:hover{color:var(--cy)}
:root{
  --bg:#070b12;--bg2:#0d1520;--card:#0d1b2a;
  --line:rgba(0,194,255,0.1);--line2:rgba(255,255,255,0.06);
  --cy:#00c2ff;--text:#e8f0fe;--mid:#b8cfe0;--muted:#6a8aa0;
  --max:760px;--f:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
}
body{background:var(--bg);color:var(--text);font-family:var(--f);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}
.logo{font-size:1.05rem;font-weight:700;color:#fff;text-decoration:none;display:flex;align-items:center;gap:10px}
.logo-icon{width:28px;height:28px;background:var(--cy);border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.nav-back{font-size:0.88rem;color:var(--mid);text-decoration:none;display:flex;align-items:center;gap:6px;transition:color .2s}
.nav-back:hover{color:var(--cy)}
.page-tag{font-size:0.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cy);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.page-tag::before{content:'';display:block;width:20px;height:2px;background:var(--cy);border-radius:2px}
h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;color:#fff;letter-spacing:-.025em;line-height:1.1;margin-bottom:10px}
.updated{font-size:0.88rem;color:var(--muted);margin-bottom:48px}
.doc h2::before{content:'';display:block;width:14px;height:2px;background:var(--cy);border-radius:2px;flex-shrink:0}
.doc p{font-size:0.97rem;color:var(--mid);line-height:1.8;margin-bottom:14px}
.doc ul{margin:0 0 16px 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.doc ul li{font-size:0.95rem;color:var(--mid);line-height:1.7;padding-left:20px;position:relative}
.doc ul li::before{content:'—';position:absolute;left:0;color:var(--cy);font-weight:700}
.doc strong{color:var(--text);font-weight:600}
.doc a{color:var(--cy);text-decoration:none;border-bottom:1px solid rgba(0,194,255,.3);transition:border-color .2s}
.doc a:hover{border-color:var(--cy)}
.info-box{background:var(--card);border:1px solid var(--line2);border-left:3px solid var(--cy);border-radius:0 8px 8px 0;padding:18px 22px;margin:24px 0}
.info-box p{margin:0;font-size:0.93rem}
.ft-links a{font-size:0.88rem;color:var(--muted);text-decoration:none;transition:color .2s}
.ft-copy{font-size:0.88rem;color:var(--muted)}
@media(max-width:600px){
  nav{padding:0 16px}
  .page{padding:48px 20px 72px}
  footer{flex-direction:column;align-items:flex-start;padding:24px 20px;gap:16px}
  .ft-links{gap:14px}
}