@font-face{font-family:MiniMindSans;src:url("assets/MiniMindBookCJK.otf") format("opentype");font-display:swap}
@font-face{font-family:MiniMindCode;src:url("assets/SourceCodePro-Regular.otf") format("opentype");font-display:swap}
:root{--bg:#09111f;--bg-soft:#0e192b;--panel:#111f33;--panel-2:#14263d;--line:rgba(164,190,212,.16);--line-strong:rgba(164,190,212,.28);--ink:#eef4f3;--muted:#9eafbd;--muted-2:#6f8293;--mint:#8ee5c0;--cyan:#77c9d8;--amber:#f4c878;--blue:#81a9ff;--shadow:0 22px 70px rgba(0,0,0,.26);--sidebar:258px;--serif:Georgia,"Songti SC","Noto Serif CJK SC",serif;--sans:MiniMindSans,"Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--code:MiniMindCode,"SFMono-Regular",Consolas,monospace;color-scheme:dark}
:root.light{--bg:#f4f7f6;--bg-soft:#e9f1f1;--panel:#fff;--panel-2:#edf5f3;--line:rgba(25,55,73,.13);--line-strong:rgba(25,55,73,.27);--ink:#122332;--muted:#526776;--muted-2:#79909e;--shadow:0 18px 48px rgba(41,77,88,.12);color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.75}a{color:inherit;text-decoration:none}.skip-link{position:fixed;left:18px;top:-60px;z-index:99;background:var(--mint);color:#092017;padding:8px 14px;border-radius:0 0 8px 8px;font-weight:700}.skip-link:focus{top:0}.site-shell{display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;display:flex;flex-direction:column;height:100vh;padding:28px 21px 24px;border-right:1px solid var(--line);background:linear-gradient(180deg,var(--bg-soft),var(--bg));z-index:30}.brand{display:flex;align-items:center;gap:11px;margin:0 8px 20px}.brand img{filter:drop-shadow(0 0 14px rgba(142,229,192,.25))}.brand strong{display:block;font-size:14px;letter-spacing:.04em}.brand 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span{float:right;color:var(--muted-2)}.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:5px;padding:18px 8px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted-2)}.sidebar-foot a{color:var(--cyan)}#main{min-width:0}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 5.2vw;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(16px)}.breadcrumb{display:flex;align-items:center;gap:12px;color:var(--muted-2);font-size:12px}.breadcrumb b{color:var(--line-strong);font-weight:400}.breadcrumb span:last-child{color:var(--muted)}.topbar-actions{display:flex;align-items:center;gap:10px}.search-box{display:flex;align-items:center;gap:7px;width:235px;height:35px;padding:0 9px;border:1px solid var(--line);border-radius:6px;color:var(--muted-2);background:var(--panel);transition:border-color .2s,box-shadow .2s}.search-box:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(142,229,192,.1)}.search-box span{font-size:20px;line-height:1;transform:rotate(-15deg)}.search-box input{min-width:0;flex:1;border:0;outline:0;background:none;color:var(--ink);font:12px var(--sans)}.search-box input::placeholder{color:var(--muted-2)}kbd{border:1px solid var(--line-strong);border-radius:3px;padding:0 4px;font:10px var(--code);color:var(--muted-2)}.icon-button,.github-button{height:35px;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--muted);font:12px var(--sans);cursor:pointer}.icon-button{width:35px;font-size:17px}.github-button{display:flex;align-items:center;gap:6px;padding:0 12px}.icon-button:hover,.github-button:hover{border-color:var(--line-strong);color:var(--ink)}.menu-toggle{display:none;background:none;border:0;color:var(--ink)}.content-wrap{max-width:1240px;margin:0 auto;padding:0 5.2vw}.section-anchor{scroll-margin-top:95px}.hero{position:relative;display:grid;grid-template-columns:minmax(0,1.06fr) minmax(360px,.94fr);gap:7.3vw;align-items:center;min-height:590px;padding:74px 0 76px;overflow:hidden}.hero:before{content:"";position:absolute;inset:0 -20vw 0 -20vw;z-index:-2;opacity:.15;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(90deg,black,transparent 80%)}.hero-copy{position:relative;z-index:1}.eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 19px;color:var(--mint);font:11px var(--code);letter-spacing:.12em;text-transform:uppercase}.eyebrow-line{width:24px;height:1px;background:currentColor}.hero h1{max-width:700px;margin:0;color:var(--ink);font:600 clamp(38px,5.2vw,70px)/1.17 var(--serif);letter-spacing:-.045em}.hero h1 em{color:var(--mint);font-style:normal}.hero-lede{max-width:590px;margin:25px 0 28px;color:var(--muted);font-size:16px;line-height:2}.hero-actions{display:flex;flex-wrap:wrap;gap:10px}.button{display:inline-flex;align-items:center;gap:12px;min-height:43px;padding:0 17px;border:1px solid var(--line-strong);border-radius:6px;font-size:13px;transition:transform .2s,background .2s,border-color .2s}.button:hover{transform:translateY(-2px)}.button-primary{border-color:var(--mint);background:var(--mint);color:#092017;font-weight:700}.button-primary:hover{background:#a9f1d2}.button-quiet{color:var(--muted)}.button-quiet:hover{border-color:var(--cyan);color:var(--ink)}.hero-note{display:flex;align-items:center;gap:8px;margin-top:23px;color:var(--muted-2);font-size:11px}.checkmark{display:grid;place-items:center;width:17px;height:17px;border-radius:50%;background:rgba(142,229,192,.11);color:var(--mint);font-size:11px}.hero-art{position:relative;min-height:390px}.art-glow{position:absolute;width:330px;height:330px;top:22px;right:8%;border-radius:50%;background:radial-gradient(circle,rgba(112,211,207,.22),transparent 68%);filter:blur(4px)}.art-grid{position:absolute;inset:23px -20px 30px 12px;opacity:.48;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:26px 26px;mask-image:radial-gradient(ellipse 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var(--line);border-radius:4px;background:var(--bg);color:var(--muted-2);font:10px var(--code);letter-spacing:.05em}.label-a{top:23px;right:22%}.label-b{top:302px;right:2%}.label-c{top:331px;left:9%}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stats-row div{display:flex;flex-direction:column;gap:3px;padding:24px 25px;border-right:1px solid var(--line)}.stats-row div:first-child{padding-left:0}.stats-row div:last-child{border-right:0}.stats-row strong{font:600 24px var(--code);color:var(--mint)}.stats-row span{color:var(--muted-2);font-size:11px}.section{padding:115px 0 20px}.section-heading{max-width:680px}.section-heading h2{margin:0 0 15px;font:600 clamp(28px,3.4vw,44px)/1.25 var(--serif);letter-spacing:-.04em}.section-heading>p:last-child{margin:0;color:var(--muted);font-size:14px;line-height:1.95}.split-heading{display:grid;grid-template-columns:1fr 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.chapter-link{color:var(--mint);transform:translateX(2px)}.empty-state{padding:35px;text-align:center;color:var(--muted)}.materials-section{padding-top:124px}.materials-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin-top:46px}.material-card{display:flex;justify-content:space-between;min-height:187px;padding:22px 20px;border:1px solid var(--line);border-radius:8px;background:var(--panel);transition:transform .2s,border-color .2s}.material-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}.material-card h3{margin:9px 0 8px;font:600 23px var(--serif)}.material-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}.material-type{color:var(--mint);font:10px 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+@media (max-width:1080px){:root{--sidebar:224px}.content-wrap{padding:0 4vw}.topbar{padding:0 4vw}.hero{gap:4vw}.hero h1{font-size:53px}.materials-grid{grid-template-columns:repeat(2,1fr)}}
+@media (max-width:820px){.site-shell{display:block}.sidebar{position:fixed;left:0;top:0;bottom:0;width:280px;height:100vh;transform:translateX(-100%);transition:transform .25s;box-shadow:18px 0 55px rgba(0,0,0,.28)}.sidebar.is-open{transform:translateX(0)}.menu-toggle{display:flex;flex-direction:column;gap:4px;padding:8px 8px 8px 0;cursor:pointer}.menu-toggle span{display:block;width:19px;height:1px;background:var(--ink)}.topbar{gap:14px;height:62px}.breadcrumb{display:none}.topbar-actions{margin-left:auto}.search-box{width:min(235px,45vw)}.hero{grid-template-columns:1fr;min-height:auto;padding-top:66px}.hero-art{min-height:370px;margin-top:4px}.hero h1{max-width:650px;font-size:52px}.principles-grid{grid-template-columns:1fr}.principle-card p{min-height:auto}.split-heading{grid-template-columns:1fr;gap:17px}.chapter-tools{align-items:flex-start}.filter-row{justify-content:flex-start}.route-map{grid-template-columns:repeat(2,1fr);row-gap:35px}.route-line{display:none}.chapter-grid{grid-template-columns:1fr}}
+@media (max-width:540px){body{font-size:14px}.topbar{padding:0 18px}.content-wrap{padding:0 18px}.github-button{display:none}.search-box{width:39px;padding:0 8px;border:0;background:transparent}.search-box input,.search-box kbd{display:none}.hero{padding:52px 0 60px}.hero h1{font-size:39px}.hero-lede{font-size:14px}.hero-art{min-height:320px;margin-left:-8px;margin-right:-8px;transform:scale(.88);transform-origin:top center;margin-bottom:-50px}.pipeline-card{right:2%;width:96%}.art-label{display:none}.stats-row{grid-template-columns:repeat(2,1fr)}.stats-row div,.stats-row div:first-child{padding:18px 14px}.stats-row div:nth-child(2){border-right:0}.stats-row div:nth-child(-n+2){border-bottom:1px solid var(--line)}.stats-row strong{font-size:20px}.section{padding-top:86px}.section-heading h2{font-size:31px}.route-map{grid-template-columns:1fr;gap:28px}.route-item{padding-top:53px}.route-item p:not(.route-kicker){min-height:auto}.materials-grid{grid-template-columns:1fr}.material-card{min-height:150px}.materials-foot{align-items:flex-start;flex-wrap:wrap}.materials-foot a{margin-left:28px}.baseline-row{grid-template-columns:1fr auto 20px;gap:8px}.baseline-head{display:none}.baseline-row span{grid-column:1 / -1;grid-row:2}.baseline-row b{grid-column:3;grid-row:1}.baseline-row code{grid-column:2;grid-row:1}.site-footer{display:block}.footer-links{align-items:flex-start;flex-wrap:wrap;margin-top:17px;gap:12px 18px}}