@font-face{font-family:Humming Codex;src:url(/fonts/FZZZH-HummingJP-CodexBoldKana.subset.woff2) format("woff2");font-style:normal;font-weight:700;font-display:swap}:root{color-scheme:light;font-family:Humming Codex,system-ui,-apple-system,Segoe UI,Noto Sans SC,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--ink: #1f2933;--ink-muted: #66737f;--page: #f4f6f8;--surface: #ffffff;--surface-soft: #eef2f5;--line: #d7dfe5;--line-strong: #b8c4cd;--accent: #2563eb;--accent-deep: #1d4ed8;--accent-soft: #e8f0ff;--coral: #c8455a;--coral-soft: #fff0f2;--green: #16805d;--green-soft: #eaf7f1;--amber: #a86b16;--font-display: "Humming Codex", system-ui, sans-serif;--font-mono: "Humming Codex", system-ui, sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:var(--ink);background:var(--page)}button{border:0;font:inherit;color:inherit;background:none}button:not(:disabled){cursor:pointer}button:disabled{cursor:default}button:focus-visible,.mode-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.shell{width:min(100%,960px);min-height:100vh;margin:0 auto;padding:max(20px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(28px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}.shell--center{display:grid;place-items:center}.eyebrow{margin:0 0 8px;color:var(--accent);font-family:var(--font-mono);font-size:.74rem;font-weight:600;letter-spacing:.08em}h1,h2,p{margin-top:0}.station-title{margin-bottom:14px;font-family:var(--font-display);font-weight:600;font-size:clamp(2.2rem,7vw,3.6rem);line-height:1.02;color:var(--ink)}.station-copy{max-width:52ch;color:var(--ink-muted);line-height:1.7}.station-card{width:min(100%,760px);display:grid;gap:22px;padding:clamp(26px,5vw,44px);border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 16px 40px #1f293314}.mode-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.mode-card{position:relative;display:grid;gap:8px;align-content:center;min-height:146px;padding:20px;border:1px solid var(--line);border-radius:8px;text-align:left;background:var(--surface);transition:transform .13s ease,border-color .13s ease,background .13s ease,box-shadow .13s ease}.mode-card:hover{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 8px 20px #2563eb1a;transform:translateY(-2px)}.mode-card:active{transform:translateY(0) scale(.99)}.mode-label{color:var(--accent);font-family:var(--font-mono);font-size:.74rem;font-weight:600}.mode-name{font-family:var(--font-display);font-size:1.3rem;font-weight:600}.mode-card small{color:var(--ink-muted);line-height:1.45}.result-stats{margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}.result-stats div{padding:14px 16px;border:1px solid var(--line);border-radius:6px;background:var(--surface-soft)}.result-stats dt{font-family:var(--font-mono);font-size:.78rem;color:var(--ink-muted)}.result-stats dd{margin:4px 0 0;font-family:var(--font-mono);font-size:1.7rem;font-weight:600;color:var(--accent-deep)}.command-stack{display:grid;gap:8px}.command-stack code{padding:11px 13px;border:1px solid var(--line);border-radius:6px;font-family:var(--font-mono);background:var(--surface-soft);color:var(--ink)}.shell--game{display:grid;grid-template-rows:auto auto 1fr;gap:16px}.deck-top{position:sticky;top:12px;z-index:2;display:grid;gap:14px;padding:16px 18px;border:1px solid var(--line);border-radius:8px;background:#fffffff0;box-shadow:0 8px 24px #1f293312;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.deck-top-meta{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px}.score-chips{display:flex;flex-wrap:wrap;gap:8px}.score-chips span{min-height:30px;display:inline-grid;place-items:center;padding:0 12px;border:1px solid #c8d8fb;border-radius:999px;font-family:var(--font-mono);font-size:.82rem;background:var(--accent-soft);color:var(--accent-deep)}.question-progress,.lives-strip{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:34px;color:var(--ink-muted);font-family:var(--font-mono);font-size:.8rem}.question-progress strong,.lives-readout strong{color:var(--ink);font-weight:600}.lives-readout{display:flex;align-items:center;gap:10px}.lives-cells{display:flex;gap:5px}.life-cell{width:24px;height:12px;border:1px solid var(--line-strong);border-radius:3px;background:var(--surface-soft)}.life-cell.is-filled{border-color:var(--coral);background:var(--coral)}.streak-readout{color:var(--ink-muted)}.progress-track{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px}.progress-bar{height:10px;overflow:hidden;border-radius:999px;background:#dce3e8}.progress-bar span{display:block;width:100%;height:100%;border-radius:inherit;background:var(--accent);transform-origin:left center;transition:transform .16s linear}.progress-clock{white-space:nowrap;font-family:var(--font-mono);font-size:.85rem;color:var(--ink-muted)}.deck-unit{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px 22px;align-items:center;padding:clamp(18px,4vw,28px);border:1px solid 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ease}.deck-button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}.deck-button:active:not(:disabled){transform:translateY(1px) scale(.98)}.deck-button:disabled{opacity:.5}.game-audio{position:fixed;width:1px;height:1px;opacity:0;pointer-events:none}.deck-button--primary{border-color:var(--accent);background:var(--accent);color:#fff}.deck-button--primary:hover:not(:disabled){border-color:var(--accent-deep);background:var(--accent-deep)}.deck-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.preset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(12px,3vw,16px);align-content:start}.preset-btn{min-height:156px;display:grid;place-items:center;gap:10px;padding:16px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 6px 18px #1f29330a;transition:transform .12s ease,background .12s ease,border-color .12s ease}.preset-btn:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft);transform:translateY(-2px)}.preset-btn img{width:clamp(72px,17vw,108px);aspect-ratio:1;border-radius:8px;object-fit:cover;box-shadow:0 8px 16px #1f293324}.preset-btn span{color:var(--ink);font-weight:600;text-align:center}.preset-btn.is-correct{border-color:var(--green);background:var(--green-soft)}.preset-btn.is-wrong{border-color:var(--coral);background:var(--coral-soft)}.preset-btn.is-dim{opacity:.45}@media(min-width:760px){.preset-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.preset-btn{min-height:210px}}@media(max-width:700px){.mode-grid{grid-template-columns:1fr}}@media(max-width:640px){.deck-top{position:static}.deck-top-meta{align-items:flex-start;flex-direction:column}.deck-unit{grid-template-columns:1fr;justify-items:start}.vu-meter{height:42px;gap:4px}.deck-actions{grid-template-columns:1fr}}