:root{--bg:#fafbf9;--surface:#fff;--text:#24332e;--muted:#68786f;--line:#dfe5df;--accent:#126e57;--code:#eef2ef;--reader-size:19px;color-scheme:light}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=paper]){--bg:#141c20;--surface:#192429;--text:#dce5e4;--muted:#9eafad;--line:#344348;--accent:#69d8b7;--code:#202d32;color-scheme:dark}}
:root[data-theme=dark]{--bg:#141c20;--surface:#192429;--text:#dce5e4;--muted:#9eafad;--line:#344348;--accent:#69d8b7;--code:#202d32;color-scheme:dark}
:root[data-theme=paper]{--bg:#f4eedf;--surface:#fbf5e8;--text:#423b30;--muted:#7d715e;--line:#ded3bd;--accent:#886034;--code:#eae2d0}
*{box-sizing:border-box}html{scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--accent);text-decoration:none}button,select,input{font:inherit;color:inherit}button,select{cursor:pointer;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:7px 10px}button:hover,a:hover{color:var(--accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.skip{position:fixed;left:12px;top:-100px;z-index:30;background:var(--surface);padding:12px}.skip:focus{top:10px}.topbar{height:68px;position:fixed;inset:0 0 auto;z-index:20;border-bottom:1px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:space-between;padding:0 30px;gap:16px}.brand{font-weight:800;font-size:22px;white-space:nowrap}.brand span{font-size:15px;font-weight:500;margin-left:12px;color:var(--text)}.settings{display:flex;gap:18px;font-size:13px}.progress{position:fixed;top:67px;left:0;right:0;height:3px;z-index:22}#progress-bar{height:100%;width:0;background:var(--accent)}#menu{display:none}#sidebar{position:fixed;left:0;top:68px;bottom:0;width:290px;overflow-y:auto;border-right:1px solid var(--line);padding:28px 22px;background:var(--surface);z-index:15}.sidebar-title{font-size:16px;font-weight:700;margin-bottom:25px}.sidebar-title span{display:block;font-weight:400;font-size:12px;color:var(--muted);margin-top:7px}.search-label{font-size:12px;color:var(--muted)}#search{margin:8px 0;width:100%;padding:11px;border:1px solid var(--line);border-radius:7px;background:var(--bg);font-size:13px}#search-status{font-size:12px;color:var(--muted);margin-bottom:10px}nav a{display:block;padding:10px;border-radius:6px;font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:3px}nav a:hover,nav a[aria-current]{background:var(--code);color:var(--accent)}#results small{display:block;font-weight:400;color:var(--muted);margin-top:5px}.download{display:block;font-size:13px;margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}.privacy{font-size:11px;line-height:1.8;color:var(--muted)}main{margin-left:290px;padding:120px 6vw 50px;max-width:1320px}.hero{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:10px 0 45px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:700}.hero h1{font-size:clamp(30px,3.3vw,49px);line-height:1.4;letter-spacing:-1px;margin:20px 0}.lead{color:var(--muted);line-height:1.9;font-size:15px}.hero img{width:180px;height:auto;box-shadow:10px 15px 35px #10213022;transform:rotate(3deg);border-radius:3px}.tags{display:flex;gap:8px;margin:20px 0}.tags span{font-size:11px;border:1px solid var(--line);border-radius:20px;padding:4px 10px}.start{display:inline-block;background:var(--accent);color:var(--surface);padding:10px 18px;border-radius:5px;font-size:14px}.start:hover{color:var(--surface);opacity:.9}#resume{font-size:13px;margin-left:8px;margin-top:10px}.reader-note{padding:14px 18px;border:1px solid var(--line);border-left:3px solid var(--accent);font-size:12px;line-height:1.9;color:var(--muted);margin-bottom:55px}article{font-size:var(--reader-size);line-height:1.95;overflow-wrap:anywhere}article>.level1{padding-top:24px;margin-bottom:70px}article h1{font-size:1.65em;line-height:1.6;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:30px}article h2{font-size:1.2em;line-height:1.6;margin-top:38px}article h3{font-size:1.05em}article p{margin:18px 0}article a{text-decoration:underline;text-underline-offset:3px}article pre{position:relative;background:var(--code);border:1px solid var(--line);padding:44px 20px 20px;overflow-x:auto;border-radius:8px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}article code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.8em}article :not(pre)>code{background:var(--code);border-radius:4px;padding:2px 5px}article table{border-collapse:collapse;width:100%;font-size:.78em;line-height:1.7;table-layout:fixed}article th,article td{border:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}article th{background:var(--code)}article li{margin:12px 0}.copy{position:absolute;right:8px;top:7px;font-size:11px;padding:3px 9px}footer{border-top:1px solid var(--line);padding-top:25px;font-size:13px;line-height:2;color:var(--muted)}footer a{display:block}.noscript{position:fixed;bottom:0;background:var(--surface);padding:8px;font-size:12px}
@media(min-width:1600px){main{margin-left:calc(290px + (100vw - 1500px)/2)}}
@media(max-width:1000px){main{padding-left:35px;padding-right:35px}.hero img{width:140px}.hero h1{font-size:33px}}
@media(max-width:760px){.topbar{padding:0 12px;gap:8px;height:60px}.brand{font-size:18px}.brand span{display:none}.settings{gap:8px}.settings label{font-size:11px}.settings select{font-size:12px;padding:6px}.theme-label{display:none}#menu{display:block;font-size:13px}.progress{top:59px}#sidebar{top:60px;transform:translateX(-100%);width:min(88vw,340px);box-shadow:10px 0 30px #0002}body.menu-open #sidebar{transform:translateX(0)}main{margin-left:0;padding:92px 22px 35px}.hero{gap:14px}.hero h1{font-size:32px}.hero img{width:105px}.lead{font-size:13px}.eyebrow{font-size:9px;letter-spacing:1px}.tags{gap:4px}.tags span{font-size:10px;padding:3px 7px}.reader-note{margin-bottom:30px}article h1{font-size:1.45em}article pre{padding-left:12px;padding-right:12px}article th,article td{padding:6px}article table{font-size:.7em}}
@media print{.topbar,#sidebar,.progress,.hero,.reader-note,.copy,footer{display:none}main{margin:0;padding:0;max-width:none}article{font-size:11pt}article>.level1{break-before:page}article pre,article table{break-inside:avoid}a{color:inherit}}