*{box-sizing:border-box}
:root{--ground:#f8f8f8;--ground-2:#ffffff;--line:rgba(19,19,19,.11);--line-2:rgba(19,19,19,.17);--text:#222222;--text-dim:#5c5c5c;--text-faint:#8c8c8c;--accent:#09838e;--accent-hover:#076974;--accent-2:#076069;--accent-soft:rgba(9,131,142,.10);--accent-line:rgba(9,131,142,.42);--accent-ink:#ffffff;--verify:#0d8a4f;--shadow:0 22px 54px -24px rgba(19,19,19,.30);--font-sans:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--font-mono:ui-monospace,"Cascadia Code",Consolas,"SF Mono",Menlo,monospace;--wrap:1140px;--r:10px;--btn-r:999px;color-scheme:light;}
body{margin:0;background:var(--ground);color:var(--text);font-family:var(--font-sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.mono{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.02em;line-height:1.14;text-wrap:balance}
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:color-mix(in srgb,var(--ground) 84%,transparent);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:650}
.brand-mark{width:30px;height:30px;flex:none;border-radius:7px;display:block;box-shadow:0 2px 8px -2px rgba(9,131,142,.5)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--text-dim);font-size:.92rem;transition:color .18s}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:14px}
.theme-btn{background:transparent;border:1px solid var(--line-2);color:var(--text-dim);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:15px;display:grid;place-items:center;transition:border-color .18s,color .18s}
.theme-btn:hover{color:var(--text);border-color:var(--accent-line)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--btn-r);font-size:.92rem;font-weight:600;cursor:pointer;border:1px solid transparent;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s;white-space:nowrap}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 10px 26px -10px var(--accent-line)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent-line);color:var(--accent-2)}
.nav .btn{padding:8px 18px}
@media (max-width:780px){.nav-links{display:none}}
.page-hero{padding:60px 0 30px;border-bottom:1px solid var(--line)}
.backlink{display:inline-block;margin-bottom:22px;color:var(--text-faint);font-size:.9rem;transition:color .18s}
.backlink:hover{color:var(--accent-2)}
.eyebrow{color:var(--accent-2);display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 4px var(--accent-soft)}
.page-hero h1{font-size:clamp(2rem,4.4vw,3rem)}
.page-hero .lead{color:var(--text-dim);font-size:1.12rem;margin:18px 0 0;max-width:62ch}
.content{padding:46px 0 80px}
.content .col{max-width:78ch}
.content h2{font-size:1.5rem;margin:42px 0 12px}
.content h2:first-of-type{margin-top:0}
.content h3{font-size:1.14rem;margin:26px 0 8px}
.content p{color:var(--text-dim);margin:0 0 14px}
.content ul{color:var(--text-dim);margin:0 0 16px;padding-left:20px}
.content li{margin:6px 0}
.muted{color:var(--text-faint);font-style:italic}
.notice{border:1px solid var(--accent-line);background:var(--accent-soft);border-radius:var(--r);padding:16px 20px;margin:0 0 34px;color:var(--text-dim);font-size:.95rem}
.notice strong{color:var(--text)}
.notice.legal{border-color:var(--line-2);background:transparent}
footer{border-top:1px solid var(--line);padding:52px 0 40px;color:var(--text-faint)}
.foot-cols{display:grid;grid-template-columns:1.5fr repeat(2,1fr);gap:28px;padding-bottom:34px;border-bottom:1px solid var(--line)}
@media (max-width:820px){.foot-cols{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-cols{grid-template-columns:1fr}}
.foot-cols h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint);margin:0 0 14px;font-weight:600}
.foot-cols a{display:block;color:var(--text-dim);font-size:.9rem;margin:8px 0;transition:color .18s}
.foot-cols a:hover{color:var(--accent-2)}
.foot-about{color:var(--text-faint);font-size:.9rem;max-width:36ch}
.foot-about .fb{display:flex;align-items:center;gap:10px;color:var(--text-dim);font-weight:650;margin-bottom:12px}
.foot-about .fb img{width:24px;height:24px;border-radius:6px}
.foot-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;font-size:.86rem;padding-top:26px}
.foot-inner .langs{font-family:var(--font-mono);letter-spacing:.1em;font-size:.72rem}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;border-radius:2px}