:root{--bg: #f7f8fa;--surface: #ffffff;--ink: #1c2430;--muted: #5b6577;--line: #d9dee7;--accent: #0b5cad;--accent-soft: #e3eefb;--warn: #b3540e;--fail: #b3261e;--ok: #1e7d32;--blocked: #8d6e00;--radius: 10px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Noto Sans JP,Yu Gothic UI,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.88em;background:#eef1f5;padding:.08em .35em;border-radius:4px}pre{background:#141a24;color:#dbe4f0;padding:1rem;border-radius:var(--radius);overflow-x:auto;line-height:1.55}pre code{background:transparent;color:inherit;padding:0}.site-header{background:var(--surface);border-bottom:1px solid var(--line);padding:.6rem 1.2rem;display:flex;gap:1.2rem;align-items:baseline;flex-wrap:wrap}.site-header .brand{font-weight:700;color:var(--ink);font-size:1.05rem}.site-header nav{display:flex;gap:1rem;font-size:.92rem}.breadcrumb{padding:.55rem 1.2rem;font-size:.88rem;color:var(--muted);background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.breadcrumb a{color:var(--muted)}.breadcrumb .sep{margin:0 .4rem}.breadcrumb .here{color:var(--ink);font-weight:600}main{max-width:1180px;margin:0 auto;padding:1.4rem 1.2rem 3rem}h1{font-size:1.7rem;line-height:1.4;margin:.2rem 0 .6rem}h2{font-size:1.25rem;margin:1.8rem 0 .6rem;border-bottom:2px solid var(--line);padding-bottom:.3rem}h3{font-size:1.05rem;margin:1.2rem 0 .4rem}.lede{font-size:1.08rem;color:#33404f}.muted{color:var(--muted)}.small{font-size:.88rem}.grid{display:grid;gap:1rem}.grid.two{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:1.4rem;align-items:start}@media(max-width:900px){.layout{grid-template-columns:1fr}}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem}.card h2,.card h3{margin-top:.2rem}.panel{margin-bottom:1rem}.panel ul{margin:.3rem 0;padding-left:1.2rem}.panel li{margin:.15rem 0}table.card-table{border-collapse:collapse;width:100%;margin:.6rem 0}table.card-table th,table.card-table td{border:1px solid var(--line);padding:.45rem .6rem;text-align:left;vertical-align:top;font-size:.94rem}table.card-table th{background:#f0f3f8;width:9.5rem}.chip{display:inline-block;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:.12rem .65rem;margin:.15rem .2rem .15rem 0;font-size:.88rem}.chip.kind{background:var(--accent-soft);border-color:#bcd3f2}.badge{display:inline-block;font-size:.78rem;border-radius:4px;padding:.05rem .45rem;border:1px solid var(--line);background:#f0f3f8}.badge.verified{border-color:var(--ok);color:var(--ok)}.badge.family-common{border-color:var(--accent);color:var(--accent)}.badge.model-dependent{border-color:var(--warn);color:var(--warn)}.badge.unverified{border-color:var(--fail);color:var(--fail)}.qgroup{margin-bottom:1rem}.qgroup h3{color:#33404f}.qgroup ul{list-style:none;padding:0;margin:.3rem 0}.qgroup li{margin:.3rem 0}.qgroup a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:.55rem .8rem;color:var(--ink)}.qgroup a:hover{border-color:var(--accent);text-decoration:none}.state-btn{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:.25rem .8rem;cursor:pointer;font-size:.9rem;margin-right:.4rem}.state-btn[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent)}.player-steps{display:flex;flex-wrap:wrap;gap:.4rem;margin:.8rem 0}.step-dot{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:.4rem .7rem;cursor:pointer;font-size:.9rem;text-align:left}.step-dot[aria-current=true]{border-color:var(--accent);background:var(--accent-soft);font-weight:600}.step-dot .st{font-weight:700;margin-left:.35rem}.step-dot .st.ok{color:var(--ok)}.step-dot .st.fail{color:var(--fail)}.step-dot .st.blocked{color:var(--blocked)}.step-dot .st.not-reached{color:var(--muted)}.player-controls{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;margin:.6rem 0}.player-controls button,.player-controls select{font-size:.95rem;padding:.35rem .8rem;border:1px solid var(--line);border-radius:8px;background:var(--surface);cursor:pointer}.flow-chain{display:flex;flex-wrap:wrap;align-items:stretch;gap:.4rem;margin:1rem 0}.flow-node{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:.5rem .7rem;font-size:.9rem;min-width:7.5rem}.flow-arrow{align-self:center;color:var(--muted)}.map-wrap{margin:.8rem 0 1.4rem}.map-toolbar{display:flex;gap:.4rem;align-items:center;flex-wrap:wrap;margin-bottom:.4rem}.map-toolbar button{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:.25rem .7rem;cursor:pointer;font-size:.95rem}.map-legend{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:.4rem}.map-swatch{display:inline-block;width:1.4rem;height:.32rem;border-radius:2px;margin-right:.35rem;vertical-align:middle}.map-scroll{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:auto;max-height:78vh}#overview-map{display:block;width:100%;min-width:860px;height:auto;cursor:grab}#overview-map:active{cursor:grabbing}.map-col-bg{fill:#f2f5f9;stroke:none}.map-col-label{font-size:13px;font-weight:700;fill:#33404f}.map-edge{fill:none;stroke-width:1.6;opacity:.55}.map-edge.is-on{opacity:1;stroke-width:2.6}.map-edge.is-dim{opacity:.06}.map-node rect{fill:#fff;stroke:#b9c4d4;stroke-width:1.2}.map-node:hover rect{stroke:var(--accent);stroke-width:2}.map-node.is-dim{opacity:.35}.map-node-name{font-size:12.5px;font-weight:600;fill:var(--ink)}.map-node-kind{font-size:10px;fill:var(--muted)}.map-step-badge{fill:var(--accent)}.map-step-num{font-size:10px;font-weight:700;fill:#fff}.sd-wrap{overflow-x:auto;margin:.4rem 0}.sd-svg{display:block;width:100%;min-width:640px;height:auto}.sd-edge{fill:none;stroke-width:1.6;opacity:.75}.sd-group-label{font-size:11px;font-weight:700;fill:#33404f}.sd-node rect{fill:#fff;stroke:#b9c4d4;stroke-width:1.1}.sd-node:hover rect{stroke:var(--accent);stroke-width:2}.sd-node-name{font-size:12px;font-weight:600;fill:var(--ink)}.sd-center{fill:var(--accent-soft);stroke:var(--accent);stroke-width:1.6}.sd-center-name{font-size:14px;font-weight:700;fill:var(--ink)}.sd-center-kind{font-size:10.5px;fill:var(--muted)}.map-node-icon,.sd-node-icon{color:#41546e}.stage-wrap{margin:.6rem 0 .8rem}#runtime-stage{display:block;width:100%;height:auto}.stage-link{fill:none;stroke:#c3cedd;stroke-width:3;stroke-linecap:round}.stage-link-dashed{fill:none;stroke:#c3cedd;stroke-width:2;stroke-dasharray:5 5}.stage-device{color:#68788e;transition:color .3s}.stage-device .stage-shadow{fill:#e3e8ef}.stage-device .stage-label{font-size:14px;font-weight:600;fill:#41546e}.stage-device.active{color:var(--accent);filter:drop-shadow(0 0 7px rgba(11,92,173,.45))}.stage-device.active .stage-label{fill:var(--accent)}#stage-packet{transition:transform .9s ease}.stage-packet-ring{fill:none;stroke:var(--accent);stroke-width:2}.stage-packet-dot{fill:var(--accent);stroke:#fff;stroke-width:2}.stage-packet-dot.ok{fill:var(--ok)}.stage-packet-dot.fail{fill:var(--fail)}.stage-packet-dot.blocked{fill:var(--blocked)}.stage-packet-dot.not-reached{fill:#9aa7b8}.stage-packet-mark{font-size:11px;font-weight:700;fill:#fff}.stage3d-box{display:none;position:relative}.stage3d-wrap.webgl-on .stage3d-box{display:block}.stage3d-wrap.webgl-on .stage-fallback{display:none}.stage3d-box canvas{display:block;width:100%;border-radius:var(--radius)}.stage3d-hint{position:absolute;left:.7rem;bottom:.45rem;z-index:2;margin:0;color:#b9d6f7;text-shadow:0 1px 3px rgba(0,0,0,.7);pointer-events:none}.stage-sentinel{height:0}.stage-sticky{position:sticky;top:46px;z-index:6;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:.55rem .6rem .4rem;margin-bottom:1rem;box-shadow:0 4px 14px #141e2d14}.stage-sticky.is-stuck{box-shadow:0 12px 26px #141e2d33}.stage-sticky.is-stuck .stage3d-hint{display:none}.ov3d-box{display:none;position:relative;margin:.8rem 0 1.4rem}.ov3d-wrap.webgl-on .ov3d-box{display:block}.ov3d-box canvas{display:block;width:100%;border-radius:var(--radius)}.ov3d-tip{position:absolute;z-index:3;pointer-events:none;opacity:0;transition:opacity .15s;background:#0a1422eb;color:#eaf3ff;font-size:.85rem;padding:.25rem .6rem;border-radius:6px;white-space:nowrap}.concept3d-box{display:none;position:relative}.concept3d-wrap.webgl-on .concept3d-box{display:block}.concept3d-wrap.webgl-on .stage-fallback{display:none}.concept3d-box canvas{display:block;width:100%;border-radius:var(--radius)}.fd-diagram{position:relative;margin:.6rem 0 1.2rem;padding-left:.4rem}.fd-diagram:before{content:"";position:absolute;left:1.32rem;top:.8rem;bottom:.8rem;width:2px;background:var(--line)}.fd-step{position:relative;display:flex;gap:.9rem;align-items:flex-start;margin:.55rem 0}.fd-num{flex:0 0 auto;width:1.9rem;height:1.9rem;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:.95rem;display:flex;align-items:center;justify-content:center;z-index:1;margin-top:.45rem}.fd-box{flex:1;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:.55rem .85rem}.fd-label{font-weight:600;color:var(--ink)}.fd-nodes{margin-top:.25rem}footer.site-footer{border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;padding:1.2rem;text-align:center}.prose p{margin:.55rem 0}.prose ul,.prose ol{padding-left:1.4rem}
