:root{--paper:#f5efe2;--paper-deep:#ece4d0;--ink:#201b12;--ink-soft:#5c5340;--ink-faint:#201b1229;--red:#b3402a;--red-deep:#8f3220;--hairline:1px solid #201b1238;--serif:"Noto Serif TC", "Songti TC", "SimSun", Georgia, serif;--mono:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--maxw:1080px}*{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{background:radial-gradient(ellipse at 20% 0%, #b3402a0d, transparent 42%), radial-gradient(ellipse at 85% 100%, #201b120f, transparent 40%), var(--paper);color:var(--ink);font-family:var(--serif);-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.75}body:before{content:"";pointer-events:none;opacity:.5;z-index:0;background-image:radial-gradient(#201b120e .8px,#0000 .8px);background-size:7px 7px;position:fixed;inset:0}#root{z-index:1;position:relative}::selection{background:#b3402a38}a{color:inherit}a:hover{color:var(--red)}:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:2px}.skip-link{background:var(--ink);color:var(--paper);z-index:99;padding:8px 14px;position:absolute;top:0;left:-999px}.skip-link:focus{top:12px;left:12px}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}.chapter{padding:18vh 0 10vh;position:relative}.chapter-head{align-items:baseline;gap:16px;margin-bottom:6px;display:flex}.chapter-no{font-family:var(--mono);letter-spacing:.18em;color:var(--red);font-size:13px}.chapter h2{letter-spacing:.02em;margin:0 0 4px;font-size:clamp(24px,3.4vw,34px);font-weight:600}.chapter-sub{color:var(--ink-soft);max-width:620px;margin:0 0 40px}.rule{border:none;border-top:2px solid var(--ink);border-bottom:1px solid var(--ink);width:72px;height:10px;margin:0 0 28px}.hero{flex-direction:column;justify-content:center;min-height:96vh;display:flex;position:relative}.hero-kicker{font-family:var(--mono);letter-spacing:.22em;color:var(--ink-soft);margin-bottom:26px;font-size:12px}.hero h1{letter-spacing:.01em;margin:0 0 10px;font-size:clamp(34px,7vw,74px);font-weight:600;line-height:1.22}.hero h1 .model{color:var(--red)}.hero h1 .harness{font-family:var(--mono);font-weight:500}.hero-sub{max-width:560px;color:var(--ink-soft);font-size:18px}.hero-loop{opacity:.9;width:clamp(150px,20vw,260px);position:absolute;top:16vh;right:2vw}.hero-loop .loop-path{fill:none;stroke:var(--ink);stroke-width:2.4px;stroke-linecap:round}.hero-loop .loop-arrow{fill:var(--red)}.hero-loop .loop-word{font-family:var(--serif);fill:var(--red);font-size:30px}.draw-on-load{stroke-dasharray:760;stroke-dashoffset:760px;animation:2s ease-out .3s forwards draw}@keyframes draw{to{stroke-dashoffset:0}}.draw-on-load .loop-arrow{opacity:0;animation:.4s ease-out 2.1s forwards appear}@keyframes appear{to{opacity:1}}.spin-slow{transform-origin:50%;animation:26s linear 2.4s infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.cursor-block{background:var(--red);vertical-align:-.12em;width:.55em;height:1em;margin-left:.15em;animation:1.15s step-end infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}.scroll-cue{font-family:var(--mono);letter-spacing:.16em;color:var(--ink-soft);align-items:center;gap:12px;font-size:12px;display:flex;position:absolute;bottom:5vh;left:0}.scroll-cue:before{content:"";background:var(--ink-soft);width:64px;height:1px;animation:2.4s ease-in-out infinite cue}@keyframes cue{0%,to{transform:scaleX(.35)}50%{transform:scaleX(1)}}.scroll-cue:before{transform-origin:0}.path{padding-left:34px;position:relative}.path-line{background:var(--ink-faint);width:2px;position:absolute;top:6px;bottom:6px;left:9px}.path-line:before{content:"";background:var(--ink);transform-origin:top;transform:scaleY(var(--draw,0));position:absolute;inset:0}.path-stop{padding:0 0 42px;position:relative}.path-dot{border:2px solid var(--ink);background:var(--paper);width:20px;height:20px;font-family:var(--mono);border-radius:50%;place-items:center;font-size:10px;display:grid;position:absolute;top:8px;left:-34px}.path-stop.lit .path-dot{background:var(--red);border-color:var(--red);color:var(--paper)}.path-stage{font-family:var(--mono);letter-spacing:.16em;color:var(--ink-soft);font-size:12px}.path-stop h3{margin:2px 0 4px;font-size:21px;font-weight:600}.path-stop h3 .hours{font-family:var(--mono);color:var(--ink-soft);margin-left:10px;font-size:12px;font-weight:400}.path-stop p{color:var(--ink-soft);max-width:560px;margin:0}.path-end{font-family:var(--mono);color:var(--red);letter-spacing:.2em;font-size:14px}.machine-shell{border:var(--hairline);background:linear-gradient(#ffffff59,#fff0);padding:20px clamp(12px,2.5vw,30px) 26px;position:relative}.machine-shell:after{content:"SIM · 教程算法真實運行";background:var(--paper);font-family:var(--mono);letter-spacing:.2em;color:var(--ink-soft);padding:0 10px;font-size:11px;position:absolute;top:-9px;right:18px}.machine-grid{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:stretch;gap:22px;display:grid}.machine-svg{width:100%;height:auto;display:block}.machine-svg text{font-family:var(--serif)}.station circle{transition:fill .35s,stroke .35s}.station .st-name{fill:var(--ink);font-size:20px;font-weight:600}.station .st-sub{font-family:var(--mono);letter-spacing:.14em;fill:var(--ink-soft);font-size:10px}.station[data-active=true] circle{stroke-width:3px}.station[data-active=true] .st-name{fill:var(--red)}.station-brain circle{stroke:var(--red);fill:#b3402a0f}.station-protocol circle,.station-hands circle{stroke:var(--ink);fill:#201b120a}.machine-shell[data-power=true] .station-brain[data-active=true] circle{fill:#b3402a29}.edge{fill:none;stroke:var(--ink);stroke-width:1.4px;stroke-dasharray:5 7;opacity:.4;transition:opacity .4s}.machine-shell[data-power=true] .edge{opacity:.75}.edge.flowing{stroke-dasharray:90 460;stroke-width:2.2px;opacity:1;animation:.9s linear flow}@keyframes flow{0%{stroke-dashoffset:550px}to{stroke-dashoffset:0}}.machine-shell[data-view=model] .harness-part{opacity:.18}.machine-shell[data-view=model] .harness-part text{opacity:.25}.machine-shell[data-view=harness] .model-part{opacity:.18}.machine-aside{flex-direction:column;gap:14px;min-width:0;display:flex}.controls{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.btn{font-family:var(--mono);letter-spacing:.08em;border:var(--hairline);color:var(--ink);cursor:pointer;background:0 0;padding:9px 16px;font-size:13px;transition:background .2s,color .2s,transform 60ms}.btn:hover{background:var(--ink);color:var(--paper)}.btn:active{transform:translateY(1px)}.btn[disabled]{opacity:.4;cursor:default}.btn[disabled]:hover{color:var(--ink);background:0 0}.btn.primary{border-color:var(--red);color:var(--red)}.btn.primary:hover{background:var(--red);color:var(--paper)}.chip-row{font-family:var(--mono);color:var(--ink-soft);align-items:center;gap:6px;font-size:12px;display:flex}.chip{border:var(--hairline);cursor:pointer;font-family:var(--mono);color:var(--ink-soft);background:0 0;padding:6px 12px;font-size:12px}.chip[data-on=true]{background:var(--ink);color:var(--paper)}.lever{font-family:var(--mono);color:var(--red-deep);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:10px;font-size:12px;display:inline-flex}.lever input{appearance:none;border:2px solid var(--red);cursor:pointer;background:0 0;width:40px;height:20px;margin:0;position:relative}.lever input:after{content:"";background:var(--red);width:14px;height:14px;transition:transform .18s;position:absolute;top:1px;left:1px}.lever input:checked:after{transform:translate(20px)}.lever input:checked{background:#b3402a1f}.history{border:var(--hairline);scroll-behavior:smooth;background:#fff6;flex-direction:column;gap:10px;height:300px;padding:12px;display:flex;overflow-y:auto}.card{border-left:3px solid var(--ink);background:#201b1209;padding:8px 12px;animation:.28s cubic-bezier(.2,.9,.3,1.2) stamp}@keyframes stamp{0%{opacity:.4;transform:scale(1.03)translateY(-3px)}to{opacity:1;transform:none}}.card .role{font-family:var(--mono);letter-spacing:.18em;color:var(--ink-soft);margin-bottom:4px;font-size:11px;display:block}.card pre{font-family:var(--mono);white-space:pre-wrap;word-break:break-all;-webkit-line-clamp:5;-webkit-box-orient:vertical;margin:0;font-size:12px;line-height:1.6;display:-webkit-box;overflow:hidden}.card.role-brain{border-color:var(--red)}.card.role-brain .role{color:var(--red)}.card.role-env.error{border-color:var(--red);background:#b3402a14}.card.role-env.error .role:after{content:" · 自我修復";color:var(--red)}.machine-meta{font-family:var(--mono);color:var(--ink-soft);flex-wrap:wrap;gap:18px;font-size:12px;display:flex}.ctxbar{border:var(--hairline);flex:140px;align-self:center;height:6px;position:relative}.ctxbar:before{content:"";background:var(--red);transform-origin:0;transform:scaleX(var(--fill,0));transition:transform .4s;position:absolute;inset:0}.machine-caption{color:var(--ink-soft);max-width:720px;margin-top:22px;font-size:15px}.machine-caption .m{color:var(--red)}.machine-caption .h{font-family:var(--mono);font-size:14px}.sky-shell{border:var(--hairline);background:linear-gradient(#fff6,#fff0);position:relative}.sky-canvas{cursor:crosshair;width:100%;height:auto;display:block}.sky-legend{border-top:var(--hairline);flex-wrap:wrap;align-items:center;gap:8px;padding:12px 16px;display:flex}.sky-body{grid-template-columns:minmax(0,1fr) 300px;display:grid}.sky-panel{border-left:var(--hairline);min-height:300px;padding:18px;font-size:15px}.sky-panel .gid{font-family:var(--mono);color:var(--red);letter-spacing:.1em}.sky-panel .gmod{font-family:var(--mono);color:var(--ink-soft);margin:6px 0 12px;font-size:12px}.sky-panel .verify{font-family:var(--mono);background:#201b120d;margin-top:12px;padding:8px 10px;font-size:12px;overflow-x:auto}.sky-panel .empty{color:var(--ink-soft)}.sky-check{cursor:pointer;font-family:var(--mono);align-items:center;gap:8px;margin-top:16px;font-size:13px;display:inline-flex}.sky-check input{width:16px;height:16px;accent-color:var(--red);cursor:pointer}.sky-hint{border-top:var(--hairline);font-family:var(--mono);letter-spacing:.1em;color:var(--ink-soft);padding:10px 16px;font-size:11px}.stage-chip[data-on=true]{background:var(--red);border-color:var(--red);color:var(--paper)}.sky-canvas{touch-action:manipulation}.sky-ring{background:radial-gradient(circle at 50% 50%, var(--paper) 0 4.5px, transparent 4.5px), conic-gradient(var(--red) var(--p,0%), #201b122e 0);border-radius:50%;width:16px;height:16px;display:inline-block}.camp-list{border:var(--hairline);margin:0;padding:0;list-style:none}.camp-row{border-bottom:var(--hairline)}.camp-row:last-child{border-bottom:none}.camp-check{cursor:pointer;grid-template-columns:26px 44px minmax(0,240px) 1fr auto;align-items:baseline;gap:14px;padding:15px 18px;transition:background .2s;display:grid}.camp-check:hover{background:#201b1209}.camp-check input{width:17px;height:17px;accent-color:var(--red);cursor:pointer;place-self:center}.camp-num{font-family:var(--mono);color:var(--ink-soft);font-size:12px}.camp-title{font-weight:600}.camp-line{color:var(--ink-soft);font-size:15px}.camp-ref{font-family:var(--mono);color:var(--ink-soft);letter-spacing:.1em;font-size:11px}.camp-row.done .camp-title{text-decoration:line-through;-webkit-text-decoration-color:var(--red);text-decoration-color:var(--red);text-decoration-thickness:1.5px}.camp-row.done .camp-num{color:var(--red)}.camp-progress{font-family:var(--mono);color:var(--ink-soft);margin-top:16px;font-size:13px}@media (width<=720px){.camp-check{grid-template-columns:24px 38px 1fr auto}.camp-line{grid-area:2/3}.camp-ref{grid-row:2}}.camp-grid{border:var(--hairline);grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:0;display:grid}.camp-item{border-right:var(--hairline);border-bottom:var(--hairline);padding:18px}.camp-item .n{font-family:var(--mono);color:var(--red);font-size:12px}.camp-item h3{margin:6px 0 4px;font-size:17px}.camp-item p{color:var(--ink-soft);margin:0;font-size:14px}.terminal-block{font-family:var(--mono);background:var(--ink);color:#efe7d3;margin:30px 0;padding:20px 24px;font-size:14px;line-height:1.9;overflow-x:auto}.terminal-block .c{color:#a89878}.terminal-block .r{color:#e8896f}.finale{text-align:center;padding:16vh 0 8vh}.finale p{margin:0 0 8px;font-size:clamp(20px,2.6vw,30px)}.finale .small{color:var(--ink-soft);font-size:14px;font-family:var(--mono);letter-spacing:.14em}footer{border-top:var(--hairline);font-family:var(--mono);color:var(--ink-soft);flex-wrap:wrap;justify-content:space-between;gap:14px;padding:26px 0 40px;font-size:12px;display:flex}@media (width<=860px){.machine-grid,.sky-body{grid-template-columns:1fr}.sky-panel{border-left:none;border-top:var(--hairline);min-height:0}.hero-loop{width:180px;margin:30px 0 0;position:static}.chapter{padding:12vh 0 8vh}}@media (prefers-reduced-motion:reduce){.draw-on-load{stroke-dasharray:none;stroke-dashoffset:0;animation:none}.draw-on-load .loop-arrow{opacity:1;animation:none}.spin-slow,.cursor-block,.scroll-cue:before{animation:none}.edge.flowing{stroke-dashoffset:0;animation:none}.card{animation:none}.path-line:before{transition:none}html{scroll-behavior:auto}}.start-links{z-index:2;flex-wrap:wrap;gap:12px 26px;margin:24px 0;display:flex;position:relative}.start-links a{text-underline-offset:5px;padding:10px 0;font-size:15px}.module-status{font:12px/1.7 var(--mono);color:var(--red-deep)}.lesson-entry{border-left:2px solid var(--red);background:var(--paper-deep);flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:18px;padding:12px 16px;display:flex}.lesson-entry strong{font-size:14px}.lesson-entry a,.lesson-link{text-underline-offset:5px;font-size:14px}.camp-row{position:relative}.camp-row>a.camp-ref{text-underline-offset:4px;font:13px var(--mono);width:fit-content;margin:0 18px 16px 76px;padding:8px 0;display:block}.terminal-block{overflow-x:auto}.terminal-block>div{white-space:pre}@media (width<=600px){.start-links{gap:8px 18px}.path-stop .hours{margin:8px 0;display:block}.camp-row>a.camp-ref{margin-left:45px}}.lesson-catalogue{width:100%;font-size:14px}.lesson-catalogue summary{cursor:pointer;padding:7px 0}.lesson-catalogue ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 24px;padding-left:22px;display:grid}.lesson-catalogue a{overflow-wrap:anywhere}@media (width<=600px){.lesson-catalogue ol{grid-template-columns:1fr}}@media (width<=760px){.chapter.wrap{padding-inline:24px}}.lesson-search{border-block:1px solid var(--line,#c7c1b6);align-items:center;gap:1rem;margin:2rem 0;padding:1.2rem 0;display:flex}.lesson-search label{white-space:nowrap;font-weight:700}.lesson-search input{min-width:0;font:inherit;color:inherit;background:0 0;border:0;border-bottom:1px solid;flex:1;padding:.7rem .2rem}.lesson-search span{white-space:nowrap;font-size:.8rem}.stage-lessons{margin-top:1.3rem}.stage-lessons>summary{cursor:pointer;border-top:1px solid var(--line,#c7c1b6);padding:.8rem 0;font-size:.85rem;font-weight:650}.stage-lesson-list .lesson-entry{border-bottom:1px solid var(--line,#c7c1b6);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.6rem;padding:.9rem 0;display:flex}.lesson-entry small{opacity:.75;margin-top:.3rem;font-size:.66rem;display:block}.lesson-entry>a{white-space:nowrap;font-size:.8rem}.lesson-catalogue{width:100%}.lesson-tools{flex-wrap:wrap;gap:1.2rem;margin-top:2rem;display:flex}.lesson-tools a{text-underline-offset:.25em;font-size:.9rem}.stage-lessons summary:focus-visible,.lesson-search input:focus-visible{outline-offset:4px;outline:2px solid}.empty-lessons{padding:2rem 0}@media (width<=600px){.lesson-search{flex-wrap:wrap;gap:.6rem}.lesson-search input{flex-basis:70%}.lesson-search span{margin-left:auto}.lesson-entry small{overflow-wrap:anywhere}}