:root{--bg: #ffffff;--surface: #f5f6f8;--text: #1c1d22;--text-soft: #565a66;--border: #e3e5ea;--accent: #2f6df6;--accent-soft: #eaf0ff;--warning-bg: #fff4e5;--warning-border: #f0c178;--warning-text: #6b4a14;--radius: 14px;--maxw: 760px}@media (prefers-color-scheme: dark){:root{--bg: #14151a;--surface: #1d1f26;--text: #ecedf1;--text-soft: #a4a8b5;--border: #2c2f39;--accent: #6f9bff;--accent-soft: #1e2740;--warning-bg: #2e2415;--warning-border: #6b5320;--warning-text: #f2d79b}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.65;font-size:17px}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}a{color:var(--accent)}.site-header{border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:10}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:19px;text-decoration:none;color:var(--text)}.brand-badge{font-size:20px}.site-nav{display:flex;gap:6px;flex-wrap:wrap}.nav-link{text-decoration:none;color:var(--text-soft);padding:8px 12px;border-radius:999px;font-size:15px;font-weight:500}.nav-link:hover{background:var(--surface);color:var(--text)}.nav-link.active{background:var(--accent-soft);color:var(--accent)}.page{padding:36px 0 8px}.page h1{font-size:30px;line-height:1.2;margin:0 0 12px}.page h2{font-size:21px;margin:34px 0 10px;padding-top:6px}.page h3{font-size:17px;margin:22px 0 6px}.page p,.page li{color:var(--text)}.lead{font-size:18px;color:var(--text-soft);margin:0 0 8px}.page ul{padding-left:22px}.page li{margin:6px 0}.updated{margin-top:40px;padding-top:16px;border-top:1px solid var(--border);color:var(--text-soft);font-size:14px}.callout{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin:18px 0}.callout.warning{background:var(--warning-bg);border-color:var(--warning-border);color:var(--warning-text)}.callout.warning strong{color:var(--warning-text)}.callout p:first-child{margin-top:0}.callout p:last-child{margin-bottom:0}.cards{display:grid;gap:14px;margin:26px 0}.card{display:block;text-decoration:none;color:inherit;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;transition:border-color .15s ease,transform .15s ease}.card:hover{border-color:var(--accent);transform:translateY(-1px)}.card h2{margin:0 0 4px;font-size:18px}.card p{margin:0;color:var(--text-soft);font-size:15px}.site-footer{margin-top:48px;border-top:1px solid var(--border);background:var(--surface);padding:26px 0 36px}.site-footer p{margin:6px 0;font-size:14px}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-links a{text-decoration:none}.footer-links a:hover{text-decoration:underline}.muted{color:var(--text-soft)}@media (max-width: 480px){body{font-size:16px}.page h1{font-size:25px}}