:root{--night:#141e26;--ink:#1e2a33;--ink-2:#414c54;--muted:#5e6468;--line:#ded9d2;--ground:#f3f1ec;--card:#fbfaf7;--ice:#e9eff2;--warm:#faf5ef;--accent:#8a4f32;--mincho:"Shippori Mincho","Hiragino Mincho ProN",serif;--gothic:"Zen Kaku Gothic New","Hiragino Sans",sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--ground);color:var(--ink);font-family:var(--gothic);font-size:16px;line-height:1.8;-webkit-text-size-adjust:100%}a{color:var(--accent)}a:hover{color:#6e3c24}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.shell{max-width:520px;margin:0 auto;min-height:100dvh;flex-direction:column}.shell,.top{display:flex}.top{position:-webkit-sticky;position:sticky;top:0;z-index:10;height:60px;align-items:center;justify-content:space-between;padding:0 16px;background:var(--night);color:#e6edf1}.brand{font-family:var(--mincho);font-size:20px;letter-spacing:.3em;color:#f2f6f8;text-decoration:none}.top nav{display:flex;gap:6px}.top nav 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span{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-align:center;min-height:80px;padding:10px;border:1px solid #b9afa4;border-radius:8px;background:var(--card);cursor:pointer}.choice span b{font-family:var(--mincho);font-weight:500;font-size:17px}.choice span small{font-size:12px;color:var(--ink-2)}.choice input:checked+span{background:var(--ink);border-color:var(--ink);color:#f2f6f8}.choice input:checked+span small{color:#c9d6de}.choice input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}.rows{display:flex;flex-direction:column;gap:8px}.row-choice{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;min-height:48px;border:1px solid var(--line);border-radius:6px;background:var(--card);cursor:pointer}.row-choice input{margin-top:6px;accent-color:var(--ink);width:18px;height:18px}.row-choice small{display:block;font-size:12px;color:var(--muted)}.pills{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.pill{position:relative}.pill input{position:absolute;opacity:0;inset:0}.pill span{display:inline-flex;min-height:44px;align-items:center;padding:0 16px;border-radius:999px;border:1px solid #b9afa4;cursor:pointer;font-size:14px}.pill input:checked+span{background:var(--ink);color:#f2f6f8;border-color:var(--ink)}.banner{padding:12px 14px;border-radius:6px;background:var(--ice);color:#26343e;font-size:14px}.banner.dark{background:var(--ink);color:#e6edf1}.banner.warm{background:var(--warm);border:1px solid #e8ddd2}details.heavy>summary{list-style:none;cursor:pointer;min-height:44px;display:flex;align-items:center;gap:8px;color:var(--ink-2);font-size:14px}details.heavy>summary::-webkit-details-marker{display:none}details.report>summary{list-style:none;cursor:pointer;font-size:12px;color:var(--muted);min-height:44px;display:inline-flex;align-items:center;padding:0 8px}details.report>summary::-webkit-details-marker{display:none}details.report[open]{width:100%}.drawer{background:var(--warm);border:1px solid #e8ddd2;border-radius:8px;padding:16px;display:flex;flex-direction:column;gap:4px}.drawer .item{border-top:1px solid #e8ddd2;padding:10px 0}.drawer .item:first-of-type{border-top:none}.drawer .word{font-family:var(--mincho);color:var(--accent);margin:2px 0 6px;white-space:pre-wrap}.hero{padding:48px 8px 24px;display:flex;flex-direction:column;gap:16px}.hero .logo{font-family:var(--mincho);font-size:64px;letter-spacing:.18em;line-height:1}.promise{display:flex;gap:12px}.promise b{font-family:var(--mincho);color:var(--accent);min-width:24px}@keyframes iceMelt{0%{filter:blur(0);opacity:1;transform:translateY(0);letter-spacing:0}35%{filter:blur(1px);opacity:.85;letter-spacing:.04em}to{filter:blur(10px);opacity:0;transform:translateY(18px) scaleY(.92);letter-spacing:.3em}}.melting{animation:iceMelt 2.6s ease-in forwards;pointer-events:none}@media 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