:root{--bg: #f4f5f7;--card: #ffffff;--text: #14171c;--muted: #667085;--border: #e2e5ea;--accent: #1652f0;--accent-text: #ffffff;--code-bg: #10141b;--code-text: #e6e9ef;--note-bg: #fff4e5;--note-text: #8a4b00;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #0e1116;--card: #171b22;--text: #f1f3f6;--muted: #98a2b3;--border: #2a303a;--accent: #4c7dff;--code-bg: #0a0d12;--note-bg: #33260f;--note-text: #ffcf8a}}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}header{position:sticky;top:0;z-index:1;background:var(--card);border-bottom:1px solid var(--border)}.header-inner{max-width:1100px;margin:0 auto;padding:12px 16px;display:flex;align-items:center;gap:16px}.brand{font-weight:700;color:var(--text)}.brand span{color:var(--muted);font-weight:400}.header-links{margin-left:auto;display:flex;align-items:center;gap:16px;font-size:.9rem}button{font:inherit;cursor:pointer}.lang{background:none;border:1px solid var(--border);border-radius:6px;color:var(--text);padding:3px 10px;font-size:.85rem}.layout{max-width:1100px;margin:0 auto;padding:0 16px 80px;display:grid;grid-template-columns:210px minmax(0,1fr);gap:40px}.sidebar{position:sticky;top:72px;align-self:start;padding-top:32px;display:flex;flex-direction:column;gap:2px;font-size:.92rem}.sidebar a{color:var(--muted);padding:5px 10px;border-radius:6px}.sidebar a:hover{color:var(--text);background:var(--card);text-decoration:none}article{padding-top:32px;min-width:0}section{padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid var(--border)}section:last-child{border-bottom:0}h1{font-size:1.9rem;line-height:1.25;margin:0 0 12px}h2{font-size:1.35rem;margin:0 0 12px}h3{font-size:1.02rem;margin:24px 0 8px}p,ul,ol{margin:0 0 14px}ul,ol{padding-left:22px}li{margin-bottom:6px}.lead{font-size:1.08rem;color:var(--muted)}code{font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:.87em;background:var(--card);border:1px solid var(--border);border-radius:4px;padding:1px 5px;overflow-wrap:anywhere}.code{position:relative;margin:0 0 16px}.code pre{margin:0;background:var(--code-bg);color:var(--code-text);border-radius:8px;padding:14px 16px;overflow-x:auto;font-size:.84rem;line-height:1.55}.code pre code{background:none;border:0;padding:0;font-size:inherit;color:inherit;overflow-wrap:normal}.code button{position:absolute;top:8px;right:8px;background:#ffffff1a;color:var(--code-text);border:0;border-radius:5px;padding:2px 9px;font-size:.75rem}.code button:hover{background:#fff3}.note{background:var(--note-bg);color:var(--note-text);border-radius:8px;padding:12px 14px;margin:0 0 16px}.table-wrap{overflow-x:auto;margin:0 0 16px}table{border-collapse:collapse;width:100%;font-size:.92rem}th,td{text-align:left;vertical-align:top;padding:8px 12px 8px 0;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;white-space:nowrap}@media(max-width:760px){.layout{grid-template-columns:minmax(0,1fr);gap:0}.sidebar{display:none}}