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var(--line);border-radius:50%;position:absolute;inset:15%}.kmap__lines{width:100%;height:100%;transition:opacity .25s;position:absolute;inset:0;overflow:visible}.kmap__lines.is-fading{opacity:0}.kmap__lines path{fill:none;vector-effect:non-scaling-stroke;stroke-linecap:round}.kmap__spoke{stroke:#dcc8a6}.kmap__link{stroke:var(--amber);stroke-dasharray:2 7;opacity:.75}.kmap__node{left:calc(var(--x,50) * 1%);top:calc(var(--y,50) * 1%);width:calc(var(--s,20) * 1%);aspect-ratio:1;background:var(--c,var(--surface));min-height:0;color:var(--ink);font:inherit;text-align:center;text-wrap:balance;cursor:pointer;-webkit-tap-highlight-color:transparent;border:3px solid #fff;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:1.2cqw;line-height:1.25;text-decoration:none;transition:left .45s,top .45s,width .45s,opacity .3s,transform .2s,visibility;display:flex;position:absolute;overflow:hidden;transform:translate(-50%,-50%);box-shadow:0 4px 14px #87562a2e}.kmap__node:hover{transform:translate(-50%,-50%)scale(1.05)}.kmap__node:active{transform:translate(-50%,-50%)scale(.96)}.kmap__node.is-hidden{opacity:0;visibility:hidden;pointer-events:none;transition-delay:0s,0s,0s,0s,0s,.45s}.kmap__stage.is-instant .kmap__node{transition:none}.kmap__stage.is-moving .kmap__node{pointer-events:none}@media (prefers-reduced-motion:reduce){.kmap__node,.kmap__lines{transition:none!important}}.kmap__node--center{border-color:var(--amber);z-index:2;background:#fff}.kmap__node--center .bug{margin-bottom:2%}.kmap__node--branch{z-index:1}.kmap__node--branch[aria-expanded=true]{box-shadow:0 0 0 6px var(--c), 0 6px 20px #87562a38;border-color:#fff}.kmap__icon{font-size:clamp(22px,7.5cqw,44px);line-height:1}.kmap__label{font-family:var(--font-display);color:var(--brown);font-size:clamp(12px,3.6cqw,20px)}.kmap__sub{color:var(--ink-soft);font-size:clamp(10px,2.8cqw,15px)}.kmap__node--q{border:4px solid var(--c);color:var(--brown);background:#fff;font-size:clamp(12px,3.6cqw,18px);font-weight:700}.kmap__list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);max-width:640px;margin:28px auto 0;padding:0 20px}.kmap__list>summary{cursor:pointer;color:var(--brown);padding:14px 0;font-weight:700}.kmap__list h2{margin:12px 0 4px;font-size:1.15rem}.kmap__list ul{margin:0 0 12px}.qpage{padding:16px 0 56px}.qpage__inner{max-width:720px}.qpage__top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px;display:flex}.qpage__back{min-height:44px}.qpage__chips{flex-wrap:wrap;gap:6px;display:flex}.chip--branch{background:var(--c);color:var(--ink);font-weight:400;text-decoration:none}.qpage__title{text-align:center;margin:8px 0 16px;font-size:clamp(1.7rem,6.5vw,2.4rem)}.qpage__figure{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);max-width:420px;margin:0 auto 20px;padding:16px}.qpage__figure img{border-radius:12px;width:100%;height:auto}.qpage__figure figcaption{color:var(--ink-soft);text-align:center;margin-top:8px;font-size:.8rem}.model3d{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);max-width:460px;margin:0 auto 20px;padding:12px}.model3d__stage{aspect-ratio:4/3;position:relative}.model3d__poster{grid-template-columns:repeat(var(--n), minmax(0, 1fr));align-items:center;gap:8px;padding:8px;transition:opacity .4s;display:grid;position:absolute;inset:0}.model3d__stage canvas{cursor:grab;touch-action:pan-y;pointer-events:none;opacity:0;border-radius:12px;width:100%;height:100%;transition:opacity .4s;display:block;position:absolute;inset:0}.model3d__stage canvas:active{cursor:grabbing}.model3d.is-3d .model3d__stage canvas{opacity:1;pointer-events:auto}.model3d.is-3d .model3d__poster{opacity:0;visibility:hidden}.model3d__hint{color:#fff;white-space:nowrap;pointer-events:none;opacity:0;z-index:1;background:#3b2a1eb8;border-radius:999px;margin:0;padding:4px 12px;font-size:.85rem;transition:opacity .3s;position:absolute;bottom:8px;left:50%;transform:translate(-50%)}.model3d.is-3d .model3d__hint{opacity:1}.model3d.is-touched .model3d__hint{opacity:0}.model3d.is-loading .model3d__stage:after{content:"載入中…";color:#fff;pointer-events:none;z-index:1;background:#3b2a1eb8;border-radius:999px;padding:4px 12px;font-size:.85rem;position:absolute;top:8px;left:50%;transform:translate(-50%)}.model3d__load{white-space:nowrap;z-index:1;font-size:.9rem;position:absolute;bottom:8px;left:50%;transform:translate(-50%)}.model3d__load[hidden]{display:none}.model3d__tabs{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:10px;display:flex}.model3d__tabs[hidden]{display:none}.model3d__tabs button{border:2px solid var(--line);background:var(--surface);min-height:44px;color:var(--ink-soft);font:inherit;cursor:pointer;border-radius:999px;padding:0 16px;font-weight:700}.model3d__tabs button[aria-pressed=true]{border-color:var(--green);background:var(--green-soft);color:var(--green)}.model3d__caption{color:var(--ink-soft);text-align:center;margin-top:8px;font-size:.8rem;display:none}.model3d.is-3d .model3d__caption{display:block}.think{border-radius:var(--radius);background:var(--green-soft);text-align:center;padding:20px}.think__label{font-family:var(--font-display);color:var(--green);margin:0 0 4px;font-size:1.1rem}.think__q{font-family:var(--font-display);margin:0 0 16px;font-size:clamp(1.25rem,5vw,1.5rem)}.reveal>summary{cursor:pointer;min-height:52px;font-size:1.1rem;list-style:none}.reveal>summary::-webkit-details-marker{display:none}.reveal[open]>summary{color:var(--green);box-shadow:inset 0 0 0 2px var(--green);background:0 0}.reveal__opened,.reveal[open] .reveal__closed{display:none}.reveal[open] .reveal__opened{display:inline}.kid{text-align:left;gap:12px;margin-top:16px;display:grid}.kid p{background:var(--surface);box-shadow:var(--shadow);border-radius:16px;margin:0;padding:14px 18px;font-size:1.2rem;line-height:1.75}.qpage__draft{border-radius:var(--radius);background:var(--amber-soft);text-align:center;padding:24px;font-size:1.15rem}.qpage__draft p{margin:0}.parent{margin-top:28px}.parent__review{color:var(--red);font-size:.85rem}.prose{overflow-wrap:anywhere}.prose h2{margin:1.4em 0 .4em;font-size:1.2rem}.prose ul{padding-left:1.2em}.prose li{margin-bottom:.4em}.prose table{border-collapse:collapse;width:100%;margin:0 0 1em;font-size:.95rem}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:8px 10px}.prose th{background:var(--amber-soft)}.qpage__related{margin-top:36px}.qpage__related h2{text-align:center;font-size:1.3rem}.related{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:10px;margin:0 0 28px;padding:0;list-style:none;display:grid}.related a{border:2px solid var(--c);background:var(--surface);min-height:64px;color:var(--ink);border-radius:16px;align-items:center;gap:12px;padding:10px 16px;font-weight:700;text-decoration:none;display:flex}.related a:hover{background:var(--bg)}.related__icon{background:var(--c);border-radius:50%;flex:none;place-items:center;width:40px;height:40px;font-size:1.3rem;display:grid}.qpage__home{min-height:52px;font-size:1.1rem}