.s-stage{aspect-ratio:12/7}.s-hud{align-items:center;margin-top:8px}.s-hud .m-count{margin-left:auto;margin-right:8px}.s-qcard{margin-top:10px;padding:14px}.s-stem{font-family:Hiragino Mincho ProN,Yu Mincho,serif;font-size:1.2rem;line-height:1.6}.s-opts{grid-template-columns:1fr 1fr;gap:8px;margin-top:12px;display:grid}.s-opts.long{grid-template-columns:1fr}.s-opt{text-align:left;border:1.5px solid var(--line);background:var(--card);min-height:48px;color:var(--ink);font:inherit;border-radius:12px;align-items:flex-start;gap:8px;padding:10px 12px;font-size:1rem;line-height:1.45;display:flex}.s-opt:not(:disabled):hover{border-color:var(--shu)}.s-key{background:var(--line);width:1.4em;height:1.4em;color:var(--ink2);border-radius:6px;flex:none;place-items:center;margin-top:.1em;font-size:.72rem;display:inline-grid}.s-opt.correct{border-color:var(--green);background:var(--green-bg)}.s-opt.wrong{border-color:var(--shu);background:#b5432a1a}.s-opt.dim{opacity:.45}.s-blade{color:var(--chip-ink);background:var(--chip-bg);border-color:#d4a017}.s-hook{z-index:950;color:#fffdf8;text-align:center;background:#1c1822;border-radius:16px;width:min(420px,92vw);padding:16px 18px;animation:.25s grudgeIn;position:fixed;top:42%;left:50%;transform:translate(-50%,-50%);box-shadow:0 12px 40px #00000059}.s-hook-tag{color:#1c1822;background:var(--gold);border-radius:999px;padding:1px 10px;font-size:.74rem;font-weight:800;display:inline-block}.s-hook-line{margin:8px 0 4px;font-size:1.15rem;font-weight:700;line-height:1.5}.s-hook-ans{opacity:.8;margin-bottom:10px;font-size:.9rem}.s-pair{justify-content:center;align-items:center;gap:12px;margin:8px 0;font-family:Hiragino Mincho ProN,Yu Mincho,serif;font-size:1.35rem;display:flex}.s-pair span{color:var(--ink2);font-size:.85rem}.s-memory{background:var(--paper);border:1px dashed var(--shu);border-radius:12px;padding:10px 12px;font-weight:700;line-height:1.6}.s-due{color:var(--shu);margin-top:8px;font-weight:700}.s-brief .btn{margin-top:16px}.s-title{background:var(--chip-bg);color:var(--chip-ink);border-radius:999px;margin:6px 0;padding:4px 14px;font-weight:800;display:inline-block}.s-learned{border:1.5px solid var(--green);background:var(--green-bg);border-radius:14px;margin:14px 0 6px;padding:12px}.s-learned-k{color:var(--green);font-size:.82rem;font-weight:700}.s-wrong{text-align:left;gap:8px;margin-top:12px;display:grid}.s-wrong-row{border:1px solid #b5432a73;border-radius:12px;gap:2px;padding:8px 10px;display:grid}.s-wrong-stem{font-family:Hiragino Mincho ProN,Yu Mincho,serif}.s-wrong-ans{color:var(--green);flex-wrap:wrap;align-items:center;gap:8px;font-size:.9rem;font-weight:700;display:flex}.s-wrong-hook{color:var(--ink2);font-size:.85rem}.m-big-score small{margin-left:2px;font-size:1rem}.s-demo{width:260px;height:150px}.sd-stem{margin-top:10px;font-family:Hiragino Mincho ProN,Yu Mincho,serif;font-size:1rem}.sd-cards{justify-content:center;gap:10px;margin-top:16px;display:flex}.sd-card{border:1.5px solid var(--line);color:#26241f;background:#fffdf8;border-radius:10px;padding:6px 14px;font-weight:800}.sd-streak{width:110px;height:4px;box-shadow:0 0 10px var(--gold);transform-origin:0;opacity:0;background:#fffdf8;position:absolute;top:78px;left:28px;transform:rotate(-18deg)scaleX(0)}.s-demo .demo-plus{top:40px;left:30%}@media (prefers-reduced-motion:reduce){.sd-streak{opacity:0}.s-hook{animation:none}}.s-hook .btn{background:var(--gold);border-color:var(--gold);color:#1c1822;font-weight:800}.s-map{color:var(--ink2);margin-top:8px;font-weight:700}.s-map b{color:var(--green)}.s-mapbox{margin:12px 0 4px}.s-mapchips{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:6px;display:flex}.s-mapchips span{border:1px dashed var(--line);color:var(--ink2);border-radius:999px;padding:3px 9px;font-size:.78rem}.s-mapchips span.done{border-style:solid;border-color:var(--green);color:var(--green);background:var(--green-bg)}.s-mapchips span.done:before{content:"✓ "}.s-mapchips span.cur{box-shadow:0 0 0 2px var(--shu)}