:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg-0:#07090d;--bg-1:#0d1017;--bg-2:#151a24;--bg-3:#1e2532;--bg-4:#2a3346;--line:#2b3548;--line-soft:#1e2634;--text:#e9edf5;--text-dim:#a6b0c4;--text-faint:#7a859b;--c-line:#2f9bff;--c-lowac:#3fd6e6;--c-vdc:#ffb21f;--c-ground:#2fc35a;--c-dead:#c3cbd8;--c-changed:#ff4fd8;--purple:#b266ff;--purple-deep:#6a2fc2;--accent:#6aa8ff;--accent-deep:#2f6fe0;--focus:#9ccbff;--radius:14px;--radius-sm:10px;--font:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--topbar-h:52px;--shadow:0 10px 30px #00000073;--ease:cubic-bezier(.2, .7, .2, 1)}*,:before,:after{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%;height:100%}body{min-height:100%;font-family:var(--font);color:var(--text);background:radial-gradient(1200px 700px at 70% -10%, #19202f 0%, transparent 60%), linear-gradient(180deg, var(--bg-1), var(--bg-0));-webkit-tap-highlight-color:transparent;background-attachment:fixed;margin:0;font-size:16px;line-height:1.45;overflow-x:hidden}#app{min-height:100dvh}h1,h2,h3,p{margin:0}a{color:inherit}:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.icon{flex:none}.btn{min-height:40px;font:600 .9rem/1 var(--font);color:var(--text);background:linear-gradient(180deg, var(--bg-3), var(--bg-2));border:1px solid var(--line);border-radius:var(--radius-sm);cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation;justify-content:center;align-items:center;gap:8px;padding:0 14px;text-decoration:none;transition:background .15s,border-color .15s,transform 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var(--line-soft);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0d1017cc;align-items:center;gap:14px;display:flex}.brand{letter-spacing:.02em;white-space:nowrap;align-items:center;gap:8px;font-weight:700;display:inline-flex}.brand-dot{background:conic-gradient(var(--c-line) 0 50%, var(--c-vdc) 0);border-radius:50%;width:12px;height:12px;box-shadow:0 0 10px #6aa8ff80}.bar-title{min-width:0;color:var(--text-dim);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:1rem;font-weight:600;overflow:hidden}.bar-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.screen{min-height:100dvh}.screen-enter{animation:screen-in .35s var(--ease) both}@keyframes screen-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@keyframes card-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.screen-center{place-items:center;padding:24px 16px;display:grid}.title{grid-template-columns:minmax(0,1.1fr) 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var(--font);letter-spacing:.22em;text-anchor:middle;fill:var(--text-faint)}.hero-wire,.hero-live{fill:none;stroke-linecap:round;stroke-linejoin:round}.hero-wire{stroke:var(--c-dead);stroke-opacity:.4;stroke-width:4px}.hero-live{stroke-width:5px;stroke-dasharray:.1 13;opacity:0}.hero-live-vdc{stroke:var(--c-vdc);animation:hero-dash .9s linear infinite, hero-energized var(--cycle) ease-in-out infinite}.hero-live-gnd{stroke:var(--c-ground);animation:hero-dash .9s linear infinite, hero-energized var(--cycle) ease-in-out infinite}.hero-live-line{stroke:var(--c-line);opacity:1;animation:.9s linear infinite hero-dash}.hero-live-lamp{stroke:var(--c-line);animation:hero-dash .9s linear infinite, hero-closed var(--cycle) ease-in-out infinite}.hero-live-gnd2{stroke:var(--c-ground);animation:hero-dash .9s linear infinite, hero-closed var(--cycle) ease-in-out infinite}.hero-coil{fill:none;stroke:var(--c-dead);stroke-width:4px;stroke-linecap:round;animation:hero-coil var(--cycle) ease-in-out infinite}.hero-coil-glow{fill:var(--c-vdc);opacity:0;filter:blur(14px);animation:hero-coil-glow var(--cycle) ease-in-out infinite}.hero-ground path{fill:none;stroke:var(--c-dead);stroke-opacity:.55;stroke-width:3.5px;stroke-linecap:round}.hero-live-gnd-sym path{animation:hero-ground var(--cycle) ease-in-out infinite}.hero-live-gnd2-sym path{animation:hero-ground2 var(--cycle) ease-in-out infinite}.hero-link{fill:none;stroke:var(--text-faint);stroke-width:2.5px;stroke-dasharray:3 9;stroke-linecap:round}.hero-term{fill:#0f141d;stroke:#8793ab;stroke-width:3px}.hero-blade{stroke:var(--c-line);stroke-width:6px;stroke-linecap:round;transform-origin:410px 150px;animation:hero-blade var(--cycle) ease-in-out infinite;transform:rotate(-26deg)}.hero-lamp-glow{fill:#ffd76a;opacity:0;filter:blur(16px);animation:hero-lamp-glow var(--cycle) ease-in-out infinite}.hero-lamp-body{fill:#0f141d;stroke:#8793ab;stroke-width:3px;animation:hero-lamp var(--cycle) ease-in-out infinite}.hero-lamp-x{fill:none;stroke:#8793ab;stroke-width:3px;stroke-linecap:round;animation:hero-lamp-x var(--cycle) ease-in-out infinite}@keyframes hero-dash{to{stroke-dashoffset:-13.1px}}@keyframes hero-energized{0%,14%{opacity:0}20%,62%{opacity:1}68%,to{opacity:0}}@keyframes hero-closed{0%,29%{opacity:0}34%,62%{opacity:1}66%,to{opacity:0}}@keyframes hero-coil{0%,14%{stroke:var(--c-dead)}20%,62%{stroke:var(--c-vdc)}68%,to{stroke:var(--c-dead)}}@keyframes hero-coil-glow{0%,14%{opacity:0}20%,62%{opacity:.4}68%,to{opacity:0}}@keyframes hero-ground{0%,14%{stroke:var(--c-dead);stroke-opacity:.55}20%,62%{stroke:var(--c-ground);stroke-opacity:1}68%,to{stroke:var(--c-dead);stroke-opacity:.55}}@keyframes hero-ground2{0%,29%{stroke:var(--c-dead);stroke-opacity:.55}34%,62%{stroke:var(--c-ground);stroke-opacity:1}66%,to{stroke:var(--c-dead);stroke-opacity:.55}}@keyframes hero-blade{0%,22%{transform:rotate(-26deg)}30%,62%{transform:rotate(0)}70%,to{transform:rotate(-26deg)}}@keyframes 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h1{letter-spacing:-.01em;color:#ffd45c;font-size:clamp(1.5rem,4vw,2.1rem);font-weight:800;line-height:1.15}.notice-text{max-width:34ch;color:var(--text-dim);margin-bottom:8px;font-size:1.1rem}.menu{flex-direction:column;display:flex}.menu-cards{flex:1;grid-template-columns:repeat(3,minmax(0,1fr));align-content:center;gap:clamp(14px,2.4vw,30px);width:min(1180px,100%);margin:0 auto;padding:clamp(16px,4vw,48px) 20px;display:grid}.chap-card{border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s var(--ease), border-color .2s, box-shadow .2s;background:linear-gradient(#1a2130,#121722);border-radius:22px;flex-direction:column;gap:16px;padding:clamp(16px,2vw,26px);text-decoration:none;display:flex;position:relative}.chap-card:hover,.chap-card:focus-visible{border-color:var(--purple);box-shadow:var(--shadow), 0 0 36px #b266ff33;transform:translateY(-3px)}.chap-card.is-done{border-color:#2a5a3c}.chap-art{border:1px solid 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var(--pad) 0;flex-direction:column;flex:1;display:flex}.circuit-host{border:1px solid var(--line-soft);min-height:0;box-shadow:var(--shadow);background:#0e131c;border-radius:12px;flex:1;position:relative;overflow:hidden}.circuit-host>svg{position:absolute;inset:0}.cut-card{border:1px solid var(--line-soft);box-shadow:var(--shadow);background:#0e131c;border-radius:12px;flex-direction:column;gap:8px;margin:0;padding:10px 12px 12px;display:flex}.cut-title{letter-spacing:.16em;text-transform:uppercase;color:var(--text-faint);font-size:.72rem;font-weight:700}.legend{color:var(--text-dim);flex-wrap:wrap;justify-content:center;align-items:center;gap:2px 14px;margin:0;padding:8px 8px 10px;font-size:.76rem;font-weight:600;list-style:none;display:flex}.legend-item{align-items:center;gap:7px;display:inline-flex}.legend-swatch{background:currentColor;border-radius:3px;width:20px;height:5px}.legend-line .legend-swatch{color:var(--c-line)}.legend-lowac .legend-swatch{color:var(--c-lowac)}.legend-vdc 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var(--purple-deep));border-color:var(--purple)}.btn-next.is-ready:hover:not(:disabled){border-color:var(--purple);background:linear-gradient(#9a5cf0,#7a3bd4)}.rail{overscroll-behavior:contain;flex-direction:column;gap:3px;min-height:96px;margin:0;padding:3px;list-style:none;display:flex;position:relative;overflow-y:auto}.rail-btn{width:100%;min-height:var(--rail-h);font:700 .84rem/1.15 var(--font);text-align:left;color:#f4f7fc;cursor:pointer;touch-action:manipulation;background:linear-gradient(#3c4456,#252b38);border:1px solid #596480;border-radius:8px;align-items:center;gap:10px;padding:3px 10px 3px 6px;transition:opacity .25s,box-shadow .25s,border-color .25s;display:flex}.rail-btn[aria-disabled=true]{cursor:default}.rail-btn:focus-visible{outline-offset:2px;outline:3px solid #fff}.rail-badge{background:#00000059;border-radius:50%;flex:none;place-items:center;width:20px;height:20px;font-size:.7rem;font-weight:800;display:grid}.rail-badge .icon{stroke-width:3px;width:13px;height:13px}.rail-title{min-width:0}.rail-item.is-later .rail-btn,.rail-item.is-next .rail-btn{opacity:.45}.rail-item.is-done .rail-btn{opacity:1}.rail-item.is-done .rail-badge{color:#06210f;background:#4ade80}.rail-item.is-current .rail-btn{opacity:1;border-color:#fff;box-shadow:0 0 0 1px #ffffff80}.rail-item.is-busy .rail-btn{color:#fff;border-color:color-mix(in srgb, var(--purple) 70%, #fff);background:linear-gradient(#5b3496,#3b1f6b);position:relative;overflow:hidden;box-shadow:0 0 0 1px #b266ff73}.rail-item.is-busy .rail-btn:after{content:"";pointer-events:none;background:linear-gradient(100deg,#0000 30%,#ffffff38 50%,#0000 70%);animation:1.6s ease-in-out infinite rail-busy;position:absolute;inset:0;transform:translate(-100%)}@keyframes rail-busy{to{transform:translate(100%)}}.rail-item.glow-purple .rail-btn{opacity:1;color:#fff;background:linear-gradient(180deg, #8a46e6, var(--purple-deep));border-color:var(--purple);animation:1.5s ease-in-out 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