:root{color-scheme:light;--bg:#fff;--bg-soft:#f6f7f8;--text:#2c3e50;--text-strong:#1f2d3d;--muted:#5f6f80;--line:#eaecef;--line-strong:#dfe2e5;--accent:#168ba1;--accent-dark:#006f86;--code:#f3f5f7;--max:760px;--nav-height:58px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.7}a{color:var(--accent-dark);font-weight:500;text-decoration:none}a:hover,a:focus-visible{text-decoration:underline}img{max-width:100%;display:block}code{background:var(--code);color:#476582;border-radius:4px;padding:.2rem .35rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em}.skip-link{z-index:20;background:var(--accent-dark);color:#fff;border-radius:4px;padding:8px 12px;font-weight:700;position:fixed;top:12px;left:16px;transform:translateY(-140%)}.skip-link:focus{transform:translateY(0)}.navbar{z-index:10;height:var(--nav-height);border-bottom:1px solid var(--line);backdrop-filter:saturate(150%)blur(12px);background:#fffffff5;position:sticky;top:0}.navbar-inner{align-items:center;max-width:1120px;height:100%;margin:0 auto;padding:0 24px;display:flex}.home-link{min-width:0;color:var(--text-strong);align-items:center;gap:10px;font-size:1.08rem;font-weight:700;display:inline-flex}.home-link:hover{text-decoration:none}.home-link img{border-radius:8px;width:32px;height:32px}.layout{grid-template-columns:250px minmax(0,1fr);max-width:1120px;margin:0 auto;display:grid}.sidebar{top:var(--nav-height);height:calc(100dvh - var(--nav-height));border-right:1px solid var(--line);padding:34px 24px 24px;position:sticky;overflow:auto}.sidebar-title{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0 0 .8rem;font-size:.78rem;font-weight:700}.sidebar-list{gap:.15rem;margin:0 0 1.6rem;padding:0;list-style:none;display:grid}.sidebar-list a{color:var(--text);border-left:2px solid #0000;padding:.35rem 0 .35rem .85rem;font-size:.94rem;font-weight:500;display:block}.sidebar-list a:hover,.sidebar-list a:focus-visible,.sidebar-list a[aria-current=page]{border-left-color:var(--accent);color:var(--accent-dark);text-decoration:none}.content{min-width:0;padding:2.2rem 2.5rem 4rem}.doc{max-width:var(--max);overflow-wrap:break-word}.doc h1,.doc h2,.doc h3{color:var(--text-strong);scroll-margin-top:82px;line-height:1.25}.doc h1{margin:0 0 1rem;font-size:2.25rem;font-weight:700}.doc h2{border-bottom:1px solid var(--line);margin:2.25rem 0 .85rem;padding-bottom:.35rem;font-size:1.65rem;font-weight:700}.doc h3{margin:1.55rem 0 .55rem;font-size:1.16rem}.doc p,.doc li{color:var(--text)}.doc ul,.doc ol{padding-left:1.35rem}.doc li+li{margin-top:.35rem}.lead{color:var(--muted);font-size:1.1rem}.link-list{margin:1.4rem 0 1.8rem}.link-list a{margin:.2rem 0;display:inline-block}.placeholder{border:1px solid var(--line-strong);color:#788592;background:linear-gradient(135deg,#0000 0 48%,#a0a9b23d 48% 52%,#0000 52%),linear-gradient(45deg,#0000 0 48%,#a0a9b22e 48% 52%,#0000 52%),#f0f2f4;border-radius:8px;place-items:center;width:100%;min-height:360px;font-weight:700;display:grid}.placeholder-small{min-height:180px}.placeholder-caption{color:var(--muted);text-align:center;margin-top:.55rem;font-size:.92rem}.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:1.3rem 0;display:grid}.card{border:1px solid var(--line);background:var(--bg-soft);border-radius:8px;padding:16px}.card h3{margin-top:0}.card p{margin-bottom:0}.warning{border-left:4px solid var(--accent);background:#f3fbfd;padding:.85rem 1rem}.page-nav{max-width:var(--max);border-top:1px solid var(--line);justify-content:space-between;margin-top:3rem;padding-top:1rem;display:flex}.footer{max-width:var(--max);border-top:1px solid var(--line);color:var(--muted);margin-top:3rem;padding-top:1rem;font-size:.92rem}.not-found{min-height:calc(100dvh - var(--nav-height));width:min(var(--max), calc(100% - 40px));text-align:center;align-content:center;place-items:center;gap:1rem;margin:0 auto;display:grid}.not-found img{border-radius:12px;width:64px;height:64px}.not-found h1{color:var(--text-strong);margin:0}@media (width<=900px){.navbar-inner{padding:0 18px}.layout{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);height:auto;padding:18px 22px;position:static}.sidebar-list{grid-template-columns:repeat(2,minmax(0,1fr))}.content{padding:2rem 22px 3rem}.cards{grid-template-columns:1fr}}@media (width<=560px){body{font-size:15px}.home-link span{font-size:1rem}.doc h1{font-size:2rem}.doc h2{font-size:1.45rem}.placeholder{min-height:240px}.page-nav{gap:.5rem;display:grid}}