:root{--steel:#e4e8eb;--surface:#f5f6f7;--ink:#15191d;--muted:#5f6a74;--rule:#c9d0d6;--dial:#1c3553;--dial-ink:#ffffff;--lume:#cfe3b0;--lume-ink:#2f5314;--signal:#c63a2e;--signal-soft:#f6dcd8;--tick-off:#aeb8c1;--font-ja:"Zen Kaku Gothic New","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;--font-num:"Barlow Condensed","Arial Narrow","Helvetica Neue",Arial,sans-serif;--radius:6px;color-scheme:light dark;box-sizing:border-box;padding-top:env(safe-area-inset-top,0);padding-bottom:env(safe-area-inset-bottom,0)}@media (prefers-color-scheme:dark){:root{--steel:#161c22;--surface:#1e262e;--ink:#e8ecef;--muted:#9aa6b1;--rule:#33404b;--dial:#8fb3dc;--dial-ink:#0f1a26;--lume:#3c5a22;--lume-ink:#d9efbb;--signal:#ef6a5c;--signal-soft:#4a2420;--tick-off:#3b4855}}*,:after,:before{box-sizing:inherit}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--steel);color:var(--ink);font-family:var(--font-ja);font-size:16px;line-height:1.7;font-feature-settings:"palt" 1}.shell{max-width:560px;margin:0 auto;padding:16px 20px 40px;min-height:100dvh}a{color:inherit}:focus-visible{outline:3px solid var(--dial);outline-offset:2px}.topbar{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:4px 0 12px;border-bottom:1px solid var(--rule)}.wordmark{letter-spacing:.04em}.page-title,.wordmark{margin:0;font-size:17px;font-weight:700}.topbar-end{justify-content:flex-end}.text-link{font-size:15px;color:var(--dial);text-decoration:none;padding:6px 0}.text-link:hover{text-decoration:underline}.btn-ghost,.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:var(--radius);font:inherit;font-weight:700;text-decoration:none;cursor:pointer;border:1.5px solid transparent}.btn-primary{background:var(--dial);color:var(--dial-ink)}.btn-primary:hover{filter:brightness(1.12)}.btn-secondary{background:transparent;color:var(--dial);border-color:var(--dial)}.btn-ghost{background:transparent;color:var(--muted);border-color:var(--rule)}.actions{display:grid;grid-gap:10px;gap:10px;margin-top:28px}.muted{color:var(--muted);font-size:14px}.center-msg{min-height:60dvh;display:grid;place-content:center;justify-items:center;grid-gap:12px;gap:12px;text-align:center}.center-msg.inline{min-height:40dvh}.center-msg p{margin:0}.hero{padding:28px 0 8px}.dial{position:relative;width:min(300px,78vw);margin:0 auto}.dial svg{display:block;width:100%;height:auto}.dial-bezel{fill:none;stroke:var(--rule);stroke-width:1.5}.dial-face{fill:var(--surface)}.tick{stroke:var(--tick-off);stroke-linecap:butt}.tick.on{stroke:var(--dial)}.lume-dot{fill:var(--lume);stroke:var(--lume-ink);stroke-width:1}.hand{transform-origin:120px 120px;transform-box:view-box}.hero .hand{transition:none}.hero.ready .hand{transition:transform 1.4s cubic-bezier(.22,1,.36,1)}.hand-line{stroke:var(--signal);stroke-width:2.4;stroke-linecap:round}.hand-tip{fill:var(--signal)}.dial-readout{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;pointer-events:none}.dial-value{font-family:var(--font-num);font-weight:600;font-size:clamp(52px,17vw,68px);line-height:1;letter-spacing:-.01em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.dial-value small{font-size:.42em;margin-left:2px;font-weight:500}.dial-value.is-empty{color:var(--tick-off);font-size:clamp(40px,13vw,52px);letter-spacing:.08em}.dial-caption{font-size:13px;color:var(--muted);margin-top:6px}.count-line{display:flex;justify-content:center;gap:24px;margin:18px 0 0;color:var(--muted);font-size:14px}.count-line b{font-family:var(--font-num);font-size:22px;font-weight:600;color:var(--ink);margin-right:3px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.rank-block{margin-top:24px;padding:18px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);text-align:center}.rank{margin:0;font-weight:700;font-size:20px;letter-spacing:.03em}.rank-none,.rank-pending{font-size:15px;font-weight:500;color:var(--muted)}.rank-special{color:var(--signal)}.goal{margin:6px 0 0;color:var(--muted)}.goal,.notice{font-size:14px}.notice{margin-top:20px;padding:12px 14px;background:var(--signal-soft);border-radius:var(--radius)}.footnote{margin-top:28px;font-size:12.5px;color:var(--muted);text-align:center}.login-form{display:grid;grid-gap:10px;gap:10px;width:min(100%,320px);margin-top:12px}.login-input{min-height:52px;padding:0 14px;border:1.5px solid var(--rule);border-radius:var(--radius);background:var(--surface);color:var(--ink);font:inherit;font-size:17px;text-align:center;letter-spacing:.08em}.login-input:focus-visible{border-color:var(--dial)}.gift{margin-top:24px;padding:20px;border:1.5px solid var(--signal);border-radius:var(--radius);background:var(--surface);display:grid;grid-gap:12px;gap:12px}.gift h2{margin:0;font-size:17px}.gift p{margin:0;font-size:15px}.gift.claimed{border-color:var(--rule)}.gift-date{font-family:var(--font-num);font-size:18px;color:var(--muted)}.gift-actions{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.quiz-bar{display:grid;grid-template-columns:auto 1fr auto;align-items:center;grid-gap:14px;gap:14px;padding-bottom:12px}.pips{display:flex;gap:4px}.pip{flex:1 1;height:4px;border-radius:2px;background:var(--tick-off)}.pip.now{background:var(--dial)}.pip.ok{background:var(--lume-ink)}.pip.ng{background:var(--signal)}.quiz-count{font-family:var(--font-num);font-size:18px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.watch-fallback,.watch-image{margin:8px 0 18px;aspect-ratio:4/3;border-radius:var(--radius);background:var(--surface);overflow:hidden;display:grid;place-items:center}.watch-image{position:relative;background:#ffffff}.watch-image img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:6px}.watch-fallback>span{display:flex;flex-wrap:wrap;align-content:center;justify-content:center;width:min(62%,220px);aspect-ratio:1;border-radius:50%;border:1.5px solid var(--rule);box-shadow:inset 0 0 0 10px var(--steel),inset 0 0 0 11.5px var(--rule);font-family:var(--font-num);font-weight:600;letter-spacing:.03em;color:var(--muted);text-align:center;padding:0 14%;line-height:1.15;overflow-wrap:anywhere}.watch-fallback .ref-l{font-size:clamp(26px,8vw,34px)}.watch-fallback .ref-m{font-size:clamp(20px,6vw,26px)}.watch-fallback .ref-s{font-size:clamp(16px,4.6vw,20px)}.q-tag{margin:0;font-size:13px;color:var(--dial)}.q-tag,.q-text{font-weight:700}.q-text{margin:4px 0 18px;font-size:21px;line-height:1.5}.choices{display:grid;grid-gap:10px;gap:10px}.choice{display:grid;grid-template-columns:36px 1fr;align-items:center;min-height:56px;padding:8px 14px 8px 8px;border:1.5px solid var(--rule);border-radius:var(--radius);background:var(--surface);color:var(--ink);font:inherit;font-size:17px;text-align:left;cursor:pointer}.choice:not(:disabled):hover{border-color:var(--dial)}.choice:disabled{cursor:default}.choice-no{font-family:var(--font-num);font-weight:600;font-size:18px;color:var(--muted);text-align:center}.choice.is-answer{background:var(--lume);border-color:var(--lume-ink);font-weight:700}.choice.is-answer,.choice.is-answer .choice-no{color:var(--lume-ink)}.choice.is-wrong{background:var(--signal-soft);border-color:var(--signal)}.choice.is-wrong .choice-no{color:var(--signal)}.choice.is-dim{opacity:.5}.feedback{margin-top:18px;padding:16px 0 0;border-top:2px solid var(--lume-ink);display:grid;grid-gap:10px;gap:10px}.feedback.ng{border-top-color:var(--signal)}.feedback-head{margin:0;font-weight:700;font-size:17px}.feedback.ok .feedback-head{color:var(--lume-ink)}.feedback.ng .feedback-head{color:var(--signal)}.feedback-body{margin:0;font-size:15px}.result-score{display:flex;align-items:baseline;justify-content:center;gap:8px;margin:32px 0 4px}.result-score b{font-family:var(--font-num);font-size:88px;line-height:1;font-weight:600;color:var(--dial)}.result-score span{font-size:17px;color:var(--muted)}.result-total{text-align:center;margin:0 0 24px;font-size:14px;color:var(--muted)}.review{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}.review li{display:grid;grid-template-columns:28px 1fr;grid-gap:2px 8px;gap:2px 8px;padding:12px 0;border-bottom:1px solid var(--rule)}.review .mark{grid-row:span 2;font-weight:700;font-size:18px;line-height:1.4}.review .ok .mark{color:var(--lume-ink)}.review .ng .mark{color:var(--signal)}.review-q{font-size:15px}.review-a{font-size:13.5px;color:var(--muted)}.summary{display:grid;grid-template-columns:1fr 1fr;grid-gap:1px;gap:1px;margin:20px 0 8px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden}.summary div{background:var(--surface);padding:14px 16px}.summary div:last-child{grid-column:span 2}.summary dt{font-size:13px;color:var(--muted)}.summary dd{margin:0;font-family:var(--font-num);font-size:34px;font-weight:600;line-height:1.2;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.summary dd small{font-size:.5em;margin-left:2px}.summary .summary-rank{font-family:var(--font-ja);font-size:18px;font-weight:700}.section-title{font-size:15px;margin:28px 0 10px}.bars{list-style:none;margin:0;padding:0;display:grid;grid-gap:14px;gap:14px}.bars li{display:grid;grid-template-columns:1fr auto;grid-template-areas:"label value" "track track" "count count";grid-gap:4px 12px;gap:4px 12px}.bar-label{grid-area:label;font-size:15px}.bar-value{grid-area:value;font-family:var(--font-num);font-size:20px;font-weight:600}.bar-track{grid-area:track;height:6px;border-radius:3px;background:var(--tick-off);overflow:hidden}.bar-fill{display:block;height:100%;background:var(--dial)}.bar-count{grid-area:count;font-size:12.5px;color:var(--muted)}.rules{width:100%;border-collapse:collapse;font-size:14px}.rules td,.rules th{text-align:left;padding:10px 0;border-bottom:1px solid var(--rule);vertical-align:top}.rules th{font-weight:700;padding-right:12px;white-space:nowrap}.rules td{color:var(--muted)}.rules tr.current th{color:var(--dial)}@media (prefers-reduced-motion:reduce){.hero.ready .hand{transition:none}}