:root{--bg: #0f1220;--panel: #1a1f35;--panel-2: #232a47;--line: #2e3557;--text: #e8eaf2;--text-dim: #9aa3c0;--accent: #ffb547;--accent-press: #e69c2e;--good: #4cd97b;--danger: #ff6b6b;--radius: 14px;--hud-h: 56px;--btn-grad: linear-gradient(135deg, var(--accent), var(--accent-press));--btn-ink: #241a05;--btn-glow: rgba(255, 181, 71, .25);color-scheme:dark}:root[data-theme=light]{--bg: #f3f4fa;--panel: #ffffff;--panel-2: #e9ebf7;--line: #ccd1e4;--text: #252a4a;--text-dim: #6a7192;--accent: #e08600;--accent-press: #c26f00;--good: #148a47;--danger: #d84c4c;--btn-grad: linear-gradient(135deg, #5b7cfa, #3d5ce0);--btn-ink: #ffffff;--btn-glow: rgba(77, 108, 238, .3);color-scheme:light}@media(prefers-color-scheme:light){:root:not([data-theme=dark]){--bg: #f3f4fa;--panel: #ffffff;--panel-2: #e9ebf7;--line: #ccd1e4;--text: #252a4a;--text-dim: #6a7192;--accent: #e08600;--accent-press: #c26f00;--good: #148a47;--danger: #d84c4c;--btn-grad: linear-gradient(135deg, #5b7cfa, #3d5ce0);--btn-ink: #ffffff;--btn-glow: rgba(77, 108, 238, .3);color-scheme:light}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;height:100%;overscroll-behavior:none}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;user-select:none;-webkit-user-select:none}#app{height:100dvh}.screen{height:100dvh;display:flex;flex-direction:column;overflow:hidden}.screen-menu{position:relative;overflow-y:auto;padding:20px 16px calc(28px + env(safe-area-inset-bottom));max-width:720px;margin:0 auto;width:100%}.brand{text-align:center;margin:12px 0 20px}.brand h1{margin:0;font-size:30px;letter-spacing:6px;font-weight:800}.brand p{margin:6px 0 0;color:var(--text-dim);font-size:13px;letter-spacing:2px}.theme-btn{position:absolute;top:10px;right:6px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--panel);font-size:17px;line-height:1;cursor:pointer;z-index:5;transition:border-color .15s}.theme-btn:active{border-color:var(--accent)}.tabs{display:flex;gap:8px;background:var(--panel);border-radius:12px;padding:4px;margin-bottom:16px}.tabs button{flex:1;border:none;border-radius:9px;padding:10px 0;font-size:15px;background:transparent;color:var(--text-dim);cursor:pointer;transition:.15s}.tabs button.active{background:var(--panel-2);color:var(--text);font-weight:600}.section-title{font-size:14px;color:var(--text-dim);margin:18px 2px 10px;letter-spacing:1px}.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:10px}.tile{position:relative;aspect-ratio:1;border-radius:var(--radius);overflow:hidden;border:2px solid transparent;background:var(--panel);cursor:pointer;padding:0;transition:transform .12s,border-color .12s}.tile img{width:100%;height:100%;object-fit:cover;display:block}.tile.selected{border-color:var(--accent);transform:scale(1.03)}.tile .name{position:absolute;left:0;right:0;bottom:0;padding:14px 6px 4px;font-size:11px;color:#fff;background:linear-gradient(transparent,#000000b3);pointer-events:none}.tile .del{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;background:#0000008c;color:#fff;font-size:12px;line-height:22px;text-align:center;cursor:pointer;display:none}.tile.uploaded .del{display:block}.tile-upload{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--text-dim);border:2px dashed var(--line);background:transparent;font-size:12px}.tile-upload .plus{font-size:26px;line-height:1}.difficulties{display:flex;gap:10px;flex-wrap:wrap}.chip{flex:1;min-width:72px;border:1px solid var(--line);background:var(--panel);color:var(--text-dim);border-radius:12px;padding:12px 0;font-size:16px;font-weight:600;cursor:pointer;transition:.15s}.chip.selected{background:var(--panel-2);border-color:var(--accent);color:var(--accent)}.best-line{margin:14px 2px 0;font-size:13px;color:var(--text-dim);min-height:18px}.best-line b{color:var(--accent)}.primary-btn{width:100%;margin-top:18px;border:none;border-radius:var(--radius);background:var(--btn-grad);color:var(--btn-ink);font-size:17px;font-weight:700;letter-spacing:4px;padding:15px 0;cursor:pointer;box-shadow:0 6px 18px var(--btn-glow);transition:transform .12s}.primary-btn:active{transform:scale(.98)}.primary-btn:disabled{opacity:.4;cursor:default}.levels{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:10px}.level-card{position:relative;aspect-ratio:1;border-radius:var(--radius);overflow:hidden;border:2px solid var(--line);background:var(--panel);cursor:pointer;padding:0;transition:transform .12s,border-color .12s}.level-card img{width:100%;height:100%;object-fit:cover;display:block}.level-card .lv{position:absolute;top:6px;left:6px;background:#0000008c;border-radius:8px;padding:2px 8px;font-size:12px;font-weight:700;color:#fff}.level-card .grid-size{position:absolute;bottom:26px;left:0;right:0;text-align:center;font-size:11px;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.8)}.level-card .stars{position:absolute;bottom:4px;left:0;right:0;text-align:center;font-size:13px;letter-spacing:2px;color:var(--accent);text-shadow:0 1px 3px rgba(0,0,0,.8)}.level-card.locked{filter:grayscale(.9) brightness(.55);cursor:not-allowed}.level-card .lock{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:26px}.hud{height:var(--hud-h);flex:none;display:flex;align-items:center;gap:8px;padding:0 max(10px,env(safe-area-inset-left));padding-right:max(10px,env(safe-area-inset-right))}.hud .spacer{flex:1}.hud .stat{background:var(--panel);border-radius:10px;padding:7px 12px;font-size:14px;font-variant-numeric:tabular-nums;color:var(--text-dim);white-space:nowrap}.hud .stat b{color:var(--text);font-weight:600}.hud .stat.danger{background:#e24a4a29;color:#e2554a}.hud .stat.danger b{color:#e2554a}.icon-btn{width:40px;height:40px;flex:none;border:none;border-radius:10px;background:var(--panel);color:var(--text);font-size:17px;cursor:pointer;transition:.12s}.icon-btn.active{background:var(--accent);color:#241a05}.icon-btn:disabled{opacity:.35;cursor:default}.game-main{flex:1;position:relative;min-height:0}.game-main canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;display:block}.nick-chip{position:absolute;top:10px;right:52px;z-index:5;display:inline-flex;align-items:center;gap:4px;height:38px;max-width:42vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:999px;padding:8px 14px;font-size:13px;cursor:pointer;transition:.12s}.nick-chip b{font-weight:600}.nick-chip:hover{border-color:var(--accent)}.modal-overlay{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;background:#0a0c189e;backdrop-filter:blur(3px);animation:fadeIn .25s ease-out}.modal-card{width:min(88vw,360px);background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 18px 50px #00000073}.modal-card h3{margin:0 0 6px;font-size:19px}.nick-hint{margin:0 0 14px;font-size:12.5px;color:var(--text-dim)}.nick-row{display:flex;gap:8px}.nick-row input{flex:1;min-width:0;background:var(--bg);border:1.5px solid var(--line);border-radius:10px;color:var(--text);padding:10px 12px;font-size:15px;outline:none}.nick-row input:focus{border-color:var(--accent)}.nick-row input.invalid{border-color:#e2554a;animation:shake .3s}.nick-error{margin:8px 0 0;font-size:12.5px;color:#e2554a}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.nick-card .win-actions{margin-top:16px}.pip{position:absolute;right:14px;bottom:14px;z-index:8;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 8px 28px #00000059;user-select:none}.pip-bar{display:flex;align-items:center;gap:6px;padding:4px 8px;font-size:12px;color:var(--text-dim);cursor:move;touch-action:none;background:var(--panel);border-bottom:1px solid var(--line)}.pip-bar .pip-size{flex:1;text-align:right;font-variant-numeric:tabular-nums;opacity:.7}.pip-btn{width:22px;height:22px;border:none;border-radius:6px;background:transparent;color:var(--text);font-size:13px;line-height:1;cursor:pointer}.pip-btn:hover{background:var(--line)}.pip img{display:block;width:100%;pointer-events:none}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0a0c189e;backdrop-filter:blur(3px);z-index:10;animation:fadeIn .3s ease-out}.win-card{width:min(88vw,380px);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:26px 22px;text-align:center;animation:pop .35s cubic-bezier(.2,1.4,.4,1)}.win-card h2{margin:0 0 4px;font-size:24px;letter-spacing:4px}.win-card .win-stars{font-size:34px;letter-spacing:6px;margin:10px 0 6px;color:var(--accent)}.win-card .win-stars .off{color:var(--line)}.win-card .win-stats{display:flex;justify-content:center;gap:26px;margin:14px 0 6px;color:var(--text-dim);font-size:13px}.win-card .win-stats b{display:block;font-size:19px;color:var(--text);font-variant-numeric:tabular-nums}.record-badge{display:inline-block;margin-top:4px;font-size:12px;color:var(--good);min-height:16px}.win-actions{display:flex;gap:10px;margin-top:18px}.win-actions .primary-btn{width:auto;flex:1;margin-top:0;letter-spacing:2px;padding:12px 0;font-size:15px}.win-leaderboard{margin-top:14px;text-align:left;border-top:1px solid var(--line);padding-top:10px;animation:fadeIn .3s ease-out}.win-leaderboard .lb-title{font-size:12px;color:var(--text-dim);letter-spacing:1px;margin-bottom:6px;text-align:center}.win-leaderboard .lb-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text);padding:3px 6px;border-radius:8px;font-variant-numeric:tabular-nums}.win-leaderboard .lb-row.lb-me{background:var(--panel-2);color:var(--accent)}.win-leaderboard .lb-rank{width:22px;text-align:right;color:var(--text-dim)}.win-leaderboard .lb-row.lb-me .lb-rank{color:var(--accent)}.win-leaderboard .lb-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.win-leaderboard .lb-score{color:var(--text-dim);font-size:12px}.ghost-btn{flex:1;border:1px solid var(--line);border-radius:var(--radius);background:transparent;color:var(--text);font-size:15px;letter-spacing:2px;padding:12px 0;cursor:pointer}.toast{position:fixed;left:50%;bottom:calc(40px + env(safe-area-inset-bottom));transform:translate(-50%);background:#1e223af2;border:1px solid rgba(255,255,255,.12);color:#e8eaf2;border-radius:10px;padding:10px 18px;font-size:14px;z-index:99;animation:fadeIn .2s ease-out;pointer-events:none;max-width:86vw}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media(max-width:640px){.screen-menu{display:flex;flex-direction:column;overflow:hidden;padding:10px 12px calc(10px + env(safe-area-inset-bottom))}.brand{margin:0 0 8px}.brand h1{font-size:22px;letter-spacing:4px}.brand p{margin-top:2px;font-size:11px}.tabs{margin-bottom:10px}.tabs button{padding:8px 0;font-size:14px}.section-title{margin:8px 2px 6px;font-size:13px}.screen-menu>.menu-panel{flex:1;display:flex;flex-direction:column;min-height:0}.gallery{flex:1;min-height:100px;overflow-y:auto;align-content:start;grid-template-columns:repeat(auto-fill,minmax(86px,1fr));gap:8px;padding-bottom:4px}.levels{flex:1;overflow-y:auto;align-content:start;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));padding-bottom:4px}.difficulties{flex-wrap:nowrap}.chip{min-width:0;padding:10px 0;font-size:14px}.best-line{margin:8px 2px 0;min-height:16px;font-size:12px}.primary-btn{margin-top:8px;padding:13px 0}}@keyframes pop{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}@media(max-width:420px){.hud .stat{padding:7px 9px;font-size:13px}.icon-btn{width:38px;height:38px}}