:root{--bg:#f6f8fa;--fg:#1f2933;--muted:#6b7785;--line:#dfe3e8;--accent:#205081;--accent2:#2e6da4;--card:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}
a{color:var(--accent2);text-decoration:none}a:hover{text-decoration:underline}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;background:#15324f;color:#fff;padding:.6rem 1.2rem;position:sticky;top:0;z-index:10}
.topbar .brand{color:#fff;font-weight:700;font-size:1.05rem}
.topbar .env{color:#aac4e0;font-size:.8rem}
.layout{display:flex;align-items:flex-start;max-width:1280px;margin:0 auto}
.sidebar{flex:0 0 280px;position:sticky;top:48px;align-self:flex-start;height:calc(100vh - 48px);overflow:auto;padding:1rem .75rem;border-right:1px solid var(--line);background:#fbfcfd}
.sidebar .home{display:block;font-weight:600;margin-bottom:.5rem}
.nav-group{margin:.75rem 0}
.nav-h{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:.5rem .4rem .25rem}
.sidebar a{display:block;padding:.32rem .5rem;border-radius:6px;color:#2b3742;font-size:.92rem}
.sidebar a:hover{background:#eef2f6;text-decoration:none}
.sidebar a.active{background:var(--accent);color:#fff;font-weight:600}
.content{flex:1 1 auto;min-width:0;max-width:860px;padding:1.5rem 2rem 4rem}
.content h1{font-size:1.9rem;color:#15324f;margin:.2em 0 .5em;line-height:1.25}
.content h2{font-size:1.4rem;color:var(--accent);border-bottom:1px solid var(--line);padding-bottom:.2em;margin-top:1.8em}
.content h3{font-size:1.15rem;color:var(--accent2);margin-top:1.5em}
.content img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.08);margin:.6em 0;display:block}
.content table{border-collapse:collapse;width:100%;margin:1em 0;font-size:.94rem}
.content th,.content td{border:1px solid var(--line);padding:.45em .6em;text-align:left;vertical-align:top}
.content th{background:#eef2f6}
.content tr:nth-child(even) td{background:#fafbfc}
.content blockquote{margin:1em 0;padding:.5em .9em;border-left:4px solid #c0c7cf;background:#f0f4f8;border-radius:0 6px 6px 0}
.content blockquote p{margin:.3em 0}
.content code{background:#eef0f2;padding:.1em .35em;border-radius:4px;font:.88em "SFMono-Regular",Consolas,monospace}
.content pre{background:#1e2733;color:#e6edf3;padding:1em;border-radius:8px;overflow:auto}
.content pre code{background:none;color:inherit;padding:0}
.content hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.lead{font-size:1.08rem;color:#384350}
.muted{color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:#fff!important;padding:.5em .9em;border-radius:7px;font-size:.9rem;font-weight:600;margin:.2em .3em .2em 0}
.btn:hover{background:#15324f;text-decoration:none}
.pdf{width:100%;height:80vh;border:1px solid var(--line);border-radius:8px;margin:.5em 0}
section{margin:1.5em 0}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:.7rem}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.card:hover{border-color:var(--accent2);box-shadow:0 2px 10px rgba(0,0,0,.1);text-decoration:none}
.card-t{font-weight:600;color:#22303c}
@media(max-width:820px){.sidebar{display:none}.content{padding:1rem 1.1rem 3rem}.layout{display:block}}