:root{color-scheme:dark;--bg:#071319;--panel:#0c1e26;--line:#203b45;--text:#e8f2f3;--muted:#95aeb7;--accent:#73e3c9;--gold:#e6b879;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 78% 0%,#16313d 0,transparent 44%),var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer;color:inherit;background:transparent;border:1px solid var(--line);border-radius:6px;padding:9px 14px}button:hover,a:hover{color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}header{min-height:88px;padding:20px 3.4%;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:22px;font-weight:650;letter-spacing:2px}.brand span{display:block;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:7px}header nav{display:flex;gap:28px;font-size:13px;align-items:center}header [aria-current]{color:var(--accent)}main{max-width:1900px;margin:auto;padding:0 3.4%}.hero{padding:42px 0 25px;display:flex;justify-content:space-between;align-items:end;gap:24px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--accent);line-height:1.6}h1{font-size:clamp(28px,2.5vw,44px);letter-spacing:1px;font-weight:550;margin:12px 0 16px}p{color:var(--muted);line-height:1.8}.hero p{margin:0;font-size:14px}.stats{display:flex;gap:30px;flex-shrink:0;padding-bottom:4px}.stats span{display:flex;flex-direction:column;gap:8px;font-size:11px;color:var(--muted)}.stats b{font:500 30px ui-monospace,monospace;color:var(--text)}.learning-path{display:flex;gap:23px;align-items:center;padding:15px 0 24px;font-size:11px;letter-spacing:1px;color:var(--muted)}.learning-path i{font-style:normal;color:var(--accent)}.courses{display:grid;grid-template-columns:1fr 1fr;gap:18px}.course-card{position:relative;text-align:left;border:1px solid var(--line);min-height:150px;border-radius:10px;overflow:hidden;padding:22px 25px;background:linear-gradient(100deg,#0e242c,#0b171e);isolation:isolate}.course-card:after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#0e242c 30%,transparent)}.course-card img{position:absolute;right:0;top:0;height:100%;width:52%;object-fit:cover;opacity:.65;z-index:-2}.course-card[aria-pressed=true]{border-color:var(--accent);box-shadow:inset 3px 0 var(--accent)}.course-card strong{display:block;font-size:22px;font-weight:550;margin:10px 0}.course-card small{color:var(--muted)}.course-card .tag{font-size:10px;letter-spacing:2px;color:var(--accent)}.course-card .course-no{float:right;font:500 20px ui-monospace,monospace;color:var(--accent)}.searchbar{display:flex;align-items:center;gap:15px;margin:27px 0 22px}.searchbar label{font-size:12px;flex-shrink:0;color:var(--muted)}input[type=search]{min-width:0;max-width:570px;flex:1;border:1px solid var(--line);border-radius:6px;padding:13px 16px;background:#091820;color:var(--text)}input::placeholder{color:#76909b}.searchbar span{font-size:12px;color:var(--muted)}.workspace{display:grid;grid-template-columns:225px minmax(0,1fr) 245px;gap:28px;border-top:1px solid var(--line);padding-top:28px}.contents h2{font-size:14px;margin:10px 0 18px}.contents{align-self:start;position:sticky;top:20px}.outline-link{display:block;padding:10px 10px;font-size:12px;color:var(--muted);border-left:2px solid transparent;line-height:1.5}.outline-link[aria-current]{background:#133039;color:var(--accent);border-color:var(--accent)}.outline-group{font-size:10px;letter-spacing:1px;color:#5f838f;padding:18px 10px 7px}.progress{margin:25px 10px}.progress label{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}progress{width:100%;height:5px;border:0;accent-color:var(--accent);margin:12px 0}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--accent)}.progress small{display:block;font-size:10px;color:#70929c}article{min-width:0;min-height:580px;padding:0 4px 25px}article h2{font-size:27px;font-weight:550;line-height:1.45;margin:10px 0 15px}article h3{font-size:16px;margin:27px 0 13px}article p{font-size:14px;margin:12px 0;color:#b7cbd2}article .lead{font-size:15px;color:var(--text)}article ul,article ol{padding-left:21px;line-height:1.9;font-size:14px;color:#b7cbd2}article li{margin-bottom:8px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:17px 0 23px}.chips span{font-size:10px;padding:5px 8px;background:#122830;border:1px solid var(--line);border-radius:4px;color:var(--accent)}.formula{background:#0e252d;border-left:2px solid var(--accent);padding:17px 20px;margin:20px 0}.formula code{font-size:16px;line-height:1.6;overflow-wrap:anywhere;white-space:pre-wrap;color:var(--accent)}.formula p{font-size:12px;margin:7px 0 0}.scope{border-left:2px solid var(--gold);background:#1b241f;padding:15px 18px;margin:21px 0}.scope p{font-size:12px;margin:0;color:#c3c9bd}.case{padding:18px 20px;border:1px solid var(--line);border-radius:8px;margin:22px 0;background:#0b2028}.case h3{margin:0 0 10px;color:var(--gold)}.case p{font-size:13px}.portal-link{display:block;border:1px solid #387369;background:#113c37;border-radius:6px;padding:15px 17px;color:var(--accent);font-size:13px;margin:15px 0}.portal-link span{display:block;margin-top:7px;color:#a0c5bf;font-size:11px}.related h2{font-size:13px;margin:0 0 14px}.model-card{border:1px solid var(--line);border-radius:7px;overflow:hidden;margin-bottom:14px;background:#0b1b23}.model-card img{width:100%;height:122px;object-fit:cover;display:block;background:#12212a}.model-card div{padding:12px}.model-card strong{display:block;font-size:12px;line-height:1.6}.model-card small{font-size:10px;color:var(--muted)}.model-links{display:flex;flex-wrap:wrap;gap:10px;padding:9px 0 0!important}.model-links a{font-size:11px;color:var(--accent)}.related .note{font-size:11px;line-height:1.7;color:var(--muted)}details{border-top:1px solid var(--line);padding:15px 0}summary{font-size:12px;cursor:pointer;color:var(--muted)}.references{list-style:none;padding:0!important}.references li{font-size:12px}.references small{display:block;color:#73929d;margin:4px 0 12px;line-height:1.6}.references a{text-decoration:underline;text-underline-offset:3px;color:#a2d9d1}.quiz{background:#0c2029;border:1px solid var(--line);border-radius:8px;padding:20px;margin:27px 0}.quiz h3{margin:0 0 13px}.quiz fieldset{border:0;margin:0;padding:0}.quiz legend{font-size:14px;line-height:1.7;margin-bottom:12px}.quiz label{display:flex;gap:10px;align-items:start;padding:9px;font-size:13px;border:1px solid transparent}.quiz label:has(input:checked){background:#15323b;border-color:#35685f;border-radius:4px}.quiz input{accent-color:var(--accent);margin:2px 0}.quiz button{margin-top:16px;background:#143e37;color:var(--accent)}.feedback{margin-bottom:0!important}.completion{display:flex;justify-content:space-between;align-items:center;margin-top:25px;border-top:1px solid var(--line);padding-top:20px;gap:10px}.completion label{font-size:12px;display:flex;gap:8px;align-items:center}.completion input{accent-color:var(--accent)}.completion a{font-size:12px;color:var(--accent)}#results{margin:0 0 24px;background:#0d2029;border:1px solid var(--line);border-radius:8px;padding:18px}#results h2{font-size:15px;margin:0 0 12px}.result-link{display:block;padding:13px 10px;border-top:1px solid var(--line)}.result-link strong{font-size:14px;color:var(--accent)}.result-link small{display:block;color:var(--muted);font-size:11px;margin:6px 0}.result-link p{font-size:12px;margin:4px 0}footer{padding:25px 0;margin-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#7896a0;line-height:1.8}footer div{display:flex;gap:18px}.skip{position:absolute;top:-60px;left:15px;z-index:10;background:var(--bg);padding:10px}.skip:focus{top:10px}#load-error{border:1px solid var(--gold);padding:30px}
@media(min-width:1700px){.workspace{grid-template-columns:250px minmax(0,1fr) 290px;gap:40px}article p,article ul,article ol{font-size:16px}.model-card img{height:150px}.outline-link{font-size:14px}.related h2{font-size:15px}article h2{font-size:32px}}@media(max-width:1100px){.workspace{grid-template-columns:200px minmax(0,1fr);gap:23px}.related{grid-column:2;display:grid;grid-template-columns:1fr 1fr;gap:12px}.related>h2,.related>.note,.related>.portal-link{grid-column:1/-1}.course-card strong{font-size:18px}.stats{gap:16px}.hero{align-items:start}.hero p{font-size:12px}}@media(max-width:700px){header{align-items:start;flex-direction:column}header nav{gap:20px;font-size:12px;flex-wrap:wrap}.hero{display:block;padding-top:28px}.stats{margin-top:23px}.stats span{flex-direction:row;align-items:center}.stats b{font-size:23px}.learning-path{gap:8px;letter-spacing:0;font-size:9px}.courses{grid-template-columns:1fr}.course-card{min-height:120px;padding:17px}.searchbar{flex-wrap:wrap}.searchbar label{width:100%}.workspace{display:block}.contents{position:static}.contents nav{max-height:230px;overflow:auto;border:1px solid var(--line);margin-bottom:20px}.progress{margin:17px 0}.related{display:grid;grid-template-columns:1fr 1fr;margin-top:28px}article h2{font-size:25px}.completion{flex-wrap:wrap}footer{display:block}footer div{margin-top:12px;flex-wrap:wrap}}
.course-joint{border-color:#a28452;background:linear-gradient(110deg,#282919,#11242c)}.guided-part-link{color:#93e9d0!important;border-bottom:1px solid #5c9b86}.model-links{flex-wrap:wrap;row-gap:10px}