*{margin:0;padding:0;box-sizing:border-box}:root{--ink: #06060e;--surface: #0f0f1a;--surface-raised: #1a1a2e;--border: #252540;--border-glow: #3a3a55;--crimson: #dc2626;--crimson-glow: rgba(220, 38, 38, .5);--crimson-dark: #991b1b;--gold: #f59e0b;--gold-glow: rgba(245, 158, 11, .35);--green: #22c55e;--green-glow: rgba(34, 197, 94, .4);--text: #e2e8f0;--text-dim: #94a3b8;--text-muted: #64748b;--radius-sm: 8px;--radius: 14px;--radius-lg: 20px}html,body{height:100%;overflow:hidden;font-family:PingFang SC,Noto Sans SC,Microsoft YaHei,Helvetica Neue,sans-serif;background:var(--ink);color:var(--text);-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}#root{height:100%}.app{height:100%;max-width:480px;margin:0 auto;position:relative;overflow:hidden;background:var(--ink)}.screen{height:100%;display:flex;flex-direction:column;align-items:center;position:relative}.start-screen{justify-content:center;padding:24px 16px;background:radial-gradient(ellipse 80% 50% at 50% 30%,rgba(220,38,38,.06) 0%,transparent 70%),radial-gradient(ellipse 60% 40% at 20% 80%,rgba(245,158,11,.04) 0%,transparent 70%),var(--ink)}.start-bg-decor{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden}.bg-circle{position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.04)}.bg-circle.c1{width:320px;height:320px;top:-120px;left:-80px;background:radial-gradient(circle,rgba(220,38,38,.03) 0%,transparent 70%)}.bg-circle.c2{width:240px;height:240px;bottom:-80px;right:-60px;background:radial-gradient(circle,rgba(245,158,11,.03) 0%,transparent 70%)}.bg-diamond{position:absolute;width:120px;height:120px;top:45%;right:-20px;border:1px solid rgba(255,255,255,.03);transform:rotate(45deg)}.start-card{width:100%;max-width:380px;opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease;position:relative;z-index:1}.start-card.visible{opacity:1;transform:translateY(0)}.title-block{text-align:center;margin-bottom:12px}.title-deco-line{width:60px;height:2px;margin:0 auto 16px;background:linear-gradient(90deg,transparent,var(--crimson),transparent)}.title-block .title-deco-line:last-child{margin:16px auto 0}.start-title{font-size:42px;font-weight:900;letter-spacing:4px;display:flex;justify-content:center;align-items:baseline;gap:0}.title-char{background:linear-gradient(180deg,#fff,#cbd5e1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:titleCharIn .6s ease forwards;opacity:0}.title-char.c1{animation-delay:.1s}.title-char.c2{animation-delay:.2s}.title-char.c3{animation-delay:.3s}.title-char.c4{animation-delay:.45s}.title-char.c5{animation-delay:.55s}.title-char.c6{animation-delay:.65s;background:linear-gradient(180deg,#f59e0b,#dc2626);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.title-gap{width:10px}@keyframes titleCharIn{0%{opacity:0;transform:translateY(-15px)}to{opacity:1;transform:translateY(0)}}.start-subtitle{text-align:center;font-size:14px;color:var(--text-dim);margin-bottom:24px;letter-spacing:1px}.difficulty-selector{margin-bottom:20px}.diff-label{display:block;font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:2px;margin-bottom:8px;text-align:center}.diff-options{display:flex;gap:8px}.diff-btn{flex:1;padding:10px 6px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-dim);cursor:pointer;transition:all .2s;text-align:center}.diff-btn.active{border-color:var(--crimson);background:#dc26261a;color:#fff;box-shadow:0 0 12px #dc262626}.diff-name{display:block;font-size:14px;font-weight:700}.diff-meta{display:block;font-size:11px;color:var(--text-muted);margin-top:2px}.diff-btn.active .diff-meta{color:var(--text-dim)}.top3-preview{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;margin-bottom:20px}.top3-entry{display:flex;align-items:center;padding:5px 0;font-size:13px}.top3-entry+.top3-entry{border-top:1px solid rgba(255,255,255,.03)}.top3-rank{width:28px}.top3-name{flex:1;color:var(--text-dim)}.top3-score{color:var(--gold);font-weight:700}.start-actions{display:flex;flex-direction:column;gap:10px}.btn-primary,.btn-secondary,.btn-save{width:100%;padding:16px;font-size:17px;font-weight:800;letter-spacing:2px;border:none;border-radius:var(--radius);cursor:pointer;transition:all .15s;position:relative;overflow:hidden}.btn-primary{background:linear-gradient(135deg,#dc2626,#b91c1c);color:#fff;box-shadow:0 4px 24px var(--crimson-glow)}.btn-primary:active{transform:scale(.97);box-shadow:0 2px 12px var(--crimson-glow)}.btn-secondary{background:var(--surface-raised);color:var(--text-dim);border:1px solid var(--border)}.btn-secondary:active{background:#22223a;transform:scale(.97)}.btn-content{display:flex;align-items:center;justify-content:center;gap:8px}.btn-icon{font-size:20px}.game-screen{padding:10px 12px 14px;background:radial-gradient(ellipse 70% 40% at 50% 55%,rgba(220,38,38,.05) 0%,transparent 70%),var(--ink)}.game-header{width:100%;display:flex;justify-content:space-between;align-items:center;padding:4px 6px 8px;flex-shrink:0}.round-badge{background:var(--surface-raised);padding:5px 12px;border-radius:20px;font-size:13px;font-weight:700;color:var(--text-dim);letter-spacing:1px;border:1px solid var(--border)}.combo-display{display:flex;align-items:baseline;gap:3px;animation:comboPulse .5s ease}.combo-count{font-size:24px;font-weight:900;color:var(--gold);text-shadow:0 0 16px var(--gold-glow)}.combo-label{font-size:12px;color:var(--gold);font-weight:700}@keyframes comboPulse{0%{transform:scale(1.4)}to{transform:scale(1)}}.score-info{display:flex;align-items:baseline;gap:2px}.score-value{font-size:22px;font-weight:900;color:var(--gold)}.score-unit{font-size:12px;color:var(--text-dim);font-weight:600}.timer-track{width:100%;height:4px;background:#ffffff0f;border-radius:2px;overflow:hidden;flex-shrink:0}.timer-fill{height:100%;border-radius:2px;transition:width 1s linear;box-shadow:0 0 8px currentColor}.timer-flash{animation:timerBlink .5s infinite}@keyframes timerBlink{0%,to{opacity:1}50%{opacity:.4}}.map-wrapper{flex:1;width:100%;min-height:0;position:relative;margin:6px 0}.map-chart{width:100%;height:100%}.map-loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--text-muted);font-size:13px;z-index:1}.loading-spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--crimson);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.options-grid{width:100%;display:grid;gap:10px;flex-shrink:0;padding-top:4px}.options-grid.opts-4{grid-template-columns:1fr 1fr}.options-grid.opts-6{grid-template-columns:1fr 1fr 1fr}.option-btn{position:relative;padding:18px 12px;font-size:17px;font-weight:800;letter-spacing:2px;border:2px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);cursor:pointer;transition:all .12s;overflow:hidden}.option-text{position:relative;z-index:1}.option-btn:active:not(:disabled){transform:scale(.95);border-color:var(--border-glow);background:var(--surface-raised)}.option-btn.is-correct{background:#22c55e26;border-color:var(--green);color:var(--green);box-shadow:0 0 20px #22c55e33;animation:correctPop .4s ease}.option-btn.is-wrong{background:#ef444426;border-color:#ef4444;color:#ef4444;animation:wrongShake .5s ease}.option-btn.is-dimmed{opacity:.25}.option-check{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:900}@keyframes correctPop{0%{transform:scale(1)}30%{transform:scale(1.06)}to{transform:scale(1)}}@keyframes wrongShake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-5px)}80%{transform:translate(5px)}}.particle{position:absolute;width:8px;height:8px;background:var(--color);border-radius:2px;z-index:10;pointer-events:none;animation:particleFly 1s ease-out forwards}@keyframes particleFly{0%{opacity:1;transform:translate(0) rotate(0) scale(1)}to{opacity:0;transform:translate(var(--tx),var(--ty)) rotate(360deg) scale(0)}}.end-screen{justify-content:center;padding:20px 16px;background:radial-gradient(ellipse 70% 50% at 50% 20%,rgba(245,158,11,.06) 0%,transparent 70%),radial-gradient(ellipse 60% 40% at 30% 80%,rgba(220,38,38,.04) 0%,transparent 70%),var(--ink)}.end-bg-decor{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden}.confetti-piece{position:absolute;width:8px;height:8px;border-radius:2px;animation:confettiFall 4s ease-in-out infinite}.confetti-piece.cp1{left:10%;top:-20px;background:#dc2626;animation-delay:0s}.confetti-piece.cp2{left:30%;top:-15px;background:#f59e0b;animation-delay:.6s}.confetti-piece.cp3{left:50%;top:-25px;background:#22c55e;animation-delay:1.2s}.confetti-piece.cp4{left:70%;top:-10px;background:#3b82f6;animation-delay:1.8s}.confetti-piece.cp5{left:85%;top:-18px;background:#dc2626;animation-delay:2.4s}.confetti-piece.cp6{left:20%;top:-30px;background:#f59e0b;animation-delay:3s}@keyframes confettiFall{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.end-card{width:100%;max-width:380px;position:relative;z-index:1;animation:cardSlideUp .5s ease}@keyframes cardSlideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.rank-display{text-align:center;margin-bottom:16px}.rank-emoji{font-size:56px;margin-bottom:4px;animation:rankBounce .8s ease}@keyframes rankBounce{0%{transform:scale(0)}50%{transform:scale(1.2)}to{transform:scale(1)}}.rank-title{font-size:26px;font-weight:900;letter-spacing:2px;margin-bottom:2px}.rank-ss .rank-title{color:#f59e0b;text-shadow:0 0 20px var(--gold-glow)}.rank-s .rank-title{color:#22c55e}.rank-a .rank-title{color:#e2e8f0}.rank-b .rank-title{color:var(--text-dim)}.rank-desc{font-size:13px;color:var(--text-muted)}.final-score{text-align:center;margin-bottom:16px}.fs-number{font-size:64px;font-weight:900;background:linear-gradient(180deg,#f59e0b,#dc2626);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}.fs-unit{font-size:20px;color:var(--text-dim);margin-left:4px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 8px;text-align:center}.stat-val{display:block;font-size:20px;font-weight:800}.stat-lbl{display:block;font-size:11px;color:var(--text-muted);margin-top:2px}.combo-achievements{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:14px}.combo-badge{background:#f59e0b1a;border:1px solid rgba(245,158,11,.3);color:var(--gold);padding:5px 12px;border-radius:20px;font-size:13px;font-weight:700;letter-spacing:1px}.results-bar{display:flex;justify-content:center;gap:7px;margin-bottom:18px}.result-dot{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800}.result-dot.dot-ok{background:#22c55e40;color:var(--green);border:1px solid rgba(34,197,94,.3)}.result-dot.dot-no{background:#ef444433;color:#ef4444;border:1px solid rgba(239,68,68,.25)}.save-section{display:flex;gap:8px;margin-bottom:14px}.name-input{flex:1;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:15px;font-family:inherit;outline:none;transition:border .2s}.name-input:focus{border-color:var(--gold)}.name-input::placeholder{color:var(--text-muted)}.btn-save{width:auto;padding:12px 16px;white-space:nowrap;font-size:14px;font-weight:700;background:var(--surface-raised);color:var(--gold);border:1px solid rgba(245,158,11,.3);border-radius:var(--radius-sm);cursor:pointer;transition:all .15s}.btn-save:active{background:#f59e0b26;transform:scale(.97)}.save-done{text-align:center;color:var(--green);font-size:14px;font-weight:600;margin-bottom:14px}.end-actions{display:flex;flex-direction:column;gap:8px}.btn-restart{background:linear-gradient(135deg,#dc2626,#b91c1c);box-shadow:0 4px 24px var(--crimson-glow)}.end-secondary-actions{display:flex;gap:8px}.btn-icon-action{flex:1;padding:12px;font-size:13px;font-weight:600;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-dim);cursor:pointer;transition:all .15s;white-space:nowrap}.btn-icon-action:active{background:var(--surface-raised);transform:scale(.97)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-card{width:100%;max-width:380px;max-height:80vh;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;overflow-y:auto;animation:modalIn .3s ease}@keyframes modalIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-header h2{font-size:20px;font-weight:800}.modal-close{width:32px;height:32px;background:none;border:1px solid var(--border);border-radius:50%;color:var(--text-dim);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.modal-close:hover{background:var(--surface-raised);color:#fff}.modal-empty{text-align:center;padding:30px 0;color:var(--text-dim)}.modal-empty-hint{font-size:13px;color:var(--text-muted);margin-top:6px}.leaderboard-list{font-size:13px}.lb-header-row{display:grid;grid-template-columns:36px 1fr 50px 44px 44px;gap:4px;padding:6px 8px;color:var(--text-muted);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:1px;border-bottom:1px solid var(--border);margin-bottom:4px}.lb-row{display:grid;grid-template-columns:36px 1fr 50px 44px 44px;gap:4px;padding:8px;border-radius:6px;align-items:center;transition:background .15s}.lb-row:hover{background:var(--surface-raised)}.lb-row.top-1{background:#f59e0b14}.lb-row.top-2{background:#94a3b80d}.lb-row.top-3{background:#b453090f}.lb-col-rank{font-weight:700;text-align:center}.lb-col-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-dim)}.lb-col-score{text-align:center;font-weight:700;color:var(--gold)}.lb-col-correct{text-align:center;color:var(--text-dim);font-size:12px}.lb-col-combo{text-align:center;color:var(--crimson);font-weight:700;font-size:12px}.error-box{text-align:center;color:var(--text-dim);margin-top:60px}.error-hint{font-size:13px;margin-top:8px;color:var(--text-muted)}@media (max-height: 500px){.game-screen{flex-direction:row;flex-wrap:wrap}.game-header,.timer-track{width:100%}.map-wrapper{flex:1;min-width:55%;height:auto}.options-grid{width:40%}.options-grid.opts-4{grid-template-columns:1fr}.options-grid.opts-6{grid-template-columns:1fr 1fr}}