:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #243144;--text: #e2e8f0;--text-muted: #94a3b8;--border: #334155;--hot-won: #facc15;--hot-hot: #ef4444;--hot-warm: #f59e0b;--hot-cool: #22d3ee;--hot-cold: #6366f1;font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}.app{max-width:720px;margin:0 auto;padding:24px 16px 64px}.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.header h1{margin:0;font-size:22px;letter-spacing:1px}.hint-btn{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:6px 12px;border-radius:8px;cursor:pointer;font-size:13px}.hint-btn:disabled{opacity:.4;cursor:not-allowed}.game-tip{font-size:14px;color:var(--text-muted);margin-bottom:18px}.game-id-footer{position:fixed;bottom:0;left:0;right:0;display:flex;flex-direction:column;align-items:center;gap:1px;padding:6px 12px;font-size:11px;color:var(--text-muted);opacity:.55;background:var(--bg)}.input-row{display:flex;gap:8px;margin-bottom:16px}.input-row input{flex:1;background:var(--panel);border:1px solid var(--border);color:var(--text);padding:10px 14px;border-radius:8px;font-size:16px}.input-row input:focus{outline:none;border-color:var(--hot-cool)}.input-row button{background:var(--hot-cool);border:0;color:#0f172a;padding:0 18px;border-radius:8px;font-weight:600;cursor:pointer}.input-row button:disabled{opacity:.4;cursor:not-allowed}.error-msg{color:var(--hot-warm);font-size:13px;min-height:18px;margin-bottom:10px}.guess-list{background:var(--panel);border:1px solid var(--border);border-radius:10px;overflow:hidden}.guess-list-header,.guess-row{display:grid;grid-template-columns:40px 1fr 90px 60px;align-items:center;padding:10px 14px;font-size:14px}.guess-list-header{background:var(--panel-2);font-size:12px;color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none}.guess-list-header span:hover{color:var(--text)}.guess-row{border-top:1px solid var(--border)}.guess-row.is-hint{background:#6366f114}.guess-word{font-weight:500}.dot{display:inline-block;width:12px;height:12px;border-radius:50%}.dot.WON{background:var(--hot-won)}.dot.HOT{background:var(--hot-hot)}.dot.WARM{background:var(--hot-warm)}.dot.COOL{background:var(--hot-cool)}.dot.COLD{background:var(--hot-cold)}.empty{padding:30px;text-align:center;color:var(--text-muted);font-size:14px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:grid;place-items:center;z-index:10}.modal{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:28px;max-width:360px;text-align:center}.modal h2{margin:0 0 12px;color:var(--hot-won)}.modal .target{font-size:28px;font-weight:700;margin:16px 0}.modal .share{background:var(--panel-2);padding:12px;border-radius:8px;font-size:13px;margin:14px 0;font-family:ui-monospace,monospace;text-align:left;white-space:pre-wrap}.modal button{background:var(--hot-cool);border:0;color:#0f172a;padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600;margin:0 4px}.title-group{display:flex;align-items:center;gap:8px}.howto-icon{width:22px;height:22px;padding:0;border:1px solid var(--border);border-radius:50%;background:var(--panel);color:var(--text-muted);font-size:13px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.howto-icon:hover{color:var(--text);border-color:var(--hot-cool)}.header-actions{display:flex;align-items:center;gap:8px}.newgame-btn{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:6px 12px;border-radius:8px;cursor:pointer;font-size:13px}.newgame-btn:hover{border-color:var(--hot-cool)}.newgame-btn:disabled{opacity:.4;cursor:not-allowed}.modal.confirm{max-width:320px;text-align:center}.confirm-message{font-size:15px;line-height:1.6;margin:4px 0 22px;color:var(--text)}.confirm-actions{display:flex;gap:10px;justify-content:center}.modal.confirm .confirm-actions button{padding:9px 20px;border-radius:8px;cursor:pointer;font-weight:600;font-size:14px;border:1px solid transparent;margin:0}.modal.confirm .confirm-cancel{background:var(--panel-2);border-color:var(--border);color:var(--text)}.modal.confirm .confirm-ok{background:var(--hot-hot);color:#fff}.lb-icon{width:24px;height:24px;padding:0;border:1px solid var(--border);border-radius:50%;background:var(--panel);font-size:13px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.lb-icon:hover{border-color:var(--hot-won)}.modal.leaderboard{max-width:420px;text-align:left}.modal.leaderboard h2{text-align:center;color:var(--hot-won)}.lb-tabs{display:flex;gap:8px;margin:16px 0}.lb-tabs button{flex:1;background:var(--panel-2);border:1px solid var(--border);color:var(--text-muted);padding:8px 0;border-radius:8px;cursor:pointer;font-size:14px}.lb-tabs button.active{background:var(--hot-cool);border-color:var(--hot-cool);color:#0f172a;font-weight:600}.lb-empty{text-align:center;color:var(--text-muted);padding:28px 0;font-size:14px}.lb-list{list-style:none;margin:0;padding:0}.lb-row{display:grid;grid-template-columns:32px 1fr auto;grid-template-areas:"rank target main" "rank sub    sub";align-items:center;gap:0 10px;padding:10px 8px;border-top:1px solid var(--border)}.lb-rank{grid-area:rank;text-align:center;font-weight:700;color:var(--text-muted)}.lb-row.top3 .lb-rank{color:var(--hot-won)}.lb-target{grid-area:target;font-weight:600;font-size:15px}.lb-main{grid-area:main;font-weight:700;color:var(--hot-cool);white-space:nowrap}.lb-sub{grid-area:sub;font-size:12px;color:var(--text-muted)}.modal.leaderboard .lb-close{display:block;margin:18px auto 0}.modal.howto{max-width:460px;text-align:left;max-height:85vh;overflow-y:auto}.modal.howto h2{text-align:center;color:var(--text)}.modal.howto h3{margin:18px 0 8px;font-size:15px;color:var(--hot-cool)}.modal.howto p{margin:8px 0;line-height:1.7;font-size:14px}.modal.howto ol,.modal.howto ul{margin:8px 0;padding-left:22px;line-height:1.7;font-size:14px}.modal.howto li{margin:4px 0}.howto-example{width:100%;border-collapse:collapse;margin:10px 0;font-size:14px}.howto-example td{padding:7px 10px;border-bottom:1px solid var(--border)}.howto-example td:nth-child(2){text-align:right;font-variant-numeric:tabular-nums;color:var(--text-muted);white-space:nowrap}.howto-example tr.hit td{background:#facc151a;border-bottom:0}.howto-example tr.hit td:nth-child(2){color:var(--hot-won)}.modal.howto p.howto-hint-line{font-size:13px;color:var(--text-muted);background:var(--panel-2);padding:10px 12px;border-radius:8px}.modal.howto p.howto-note{font-size:13px;color:var(--text-muted);border-top:1px solid var(--border);padding-top:12px;margin-top:16px}.howto-actions{display:flex;flex-direction:column;align-items:center;gap:14px;margin-top:20px}.howto-dismiss{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none}.howto-dismiss input{width:15px;height:15px;cursor:pointer}