:root{--bg: #0e1424;--panel: #18203a;--accent: #4cc9f0;--accent2: #f7b801;--good: #2ec27e;--bad: #ff6b6b;--text: #eef2ff;--muted: #9aa6c8;font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}button{touch-action:manipulation}html{height:100%}body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}#root{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}.home{text-align:center;width:min(560px,100%)}.title{font-size:2rem;margin:8px 0}.subtitle{color:var(--muted);margin:0 0 24px}.track-list{display:grid;gap:16px}.track-card{display:flex;flex-direction:column;border-radius:18px;background:var(--panel);overflow:hidden}.track-main{display:flex;flex-direction:column;gap:6px;padding:22px;border:none;background:transparent;color:var(--text);cursor:pointer;transition:transform .1s ease}.track-main:active{transform:scale(.98)}.race-btn{border:none;border-top:1px solid #232c4d;background:transparent;color:var(--accent2);font-weight:700;font-size:1rem;padding:14px;cursor:pointer}.race-btn:active{background:#232c4d}.track-name{font-size:1.5rem;font-weight:700}.track-meta{color:var(--muted);font-size:.95rem}.empty{color:var(--muted)}.map{width:min(820px,100%);padding-bottom:40px}.map .title{text-align:center;font-size:1.6rem;margin:6px 0}.map .subtitle{text-align:center;margin-bottom:20px}.term{margin-bottom:28px}.term-title{font-size:1.2rem;color:var(--accent);border-bottom:1px solid #232c4d;padding-bottom:6px;margin:18px 0 12px}.unit{margin-bottom:16px}.unit-title{font-weight:700;color:var(--text);margin-bottom:8px}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;align-items:start}.topic{background:var(--panel);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}.topic-soon{opacity:.55;padding:14px;gap:8px}.topic-main{border:none;background:transparent;color:var(--text);cursor:pointer;padding:14px;min-height:84px;display:flex;flex-direction:column;gap:8px;text-align:left}.topic-main:active{background:#232c4d}.topic-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.topic-name{font-weight:700;font-size:.98rem}.topic-meta,.soon-tag{color:var(--muted);font-size:.82rem}.done-tag{color:var(--good);font-size:.78rem;font-weight:700}.ped{font-size:.72rem;font-weight:700;padding:2px 7px;border-radius:999px;background:#121a30;color:var(--muted);white-space:nowrap}.ped-fluency{color:#06231a;background:var(--good)}.ped-procedure{color:#042231;background:var(--accent)}.ped-formula{color:#2a1a02;background:var(--accent2)}.ped-concept{color:#eef2ff;background:#5a4fcf}.ped-logic{color:#eef2ff;background:#c0497a}.ped-data{color:#06231a;background:#4cc9a0}.race-btn.small{font-size:.85rem;padding:9px}.level-panel{background:var(--panel);border-radius:14px;padding:12px 16px;margin-bottom:22px}.level-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}.lv-badge{font-weight:800;color:#042231;background:var(--accent);padding:3px 12px;border-radius:999px}.xp-text{color:var(--accent2);font-weight:700}.xp-next{color:var(--muted);font-size:.85rem;margin-left:auto}.xp-bar{height:10px;background:#121a30;border-radius:999px;overflow:hidden}.xp-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:999px;transition:width .4s ease}.prog.xp{color:var(--accent2)}.stage-bar{display:flex;gap:6px;margin-bottom:18px}.stage-seg{flex:1;text-align:center;font-size:.85rem;font-weight:700;padding:7px 4px;border-radius:10px;background:#121a30;color:var(--muted)}.stage-active{background:var(--accent);color:#042231}.stage-done{background:var(--good);color:#06231a}.xp-gain{color:var(--accent2);font-weight:800;font-size:1.2rem}.play{width:min(560px,100%)}.play-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.ghost{background:transparent;border:none;color:var(--muted);font-size:1rem;cursor:pointer}.status{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.level-badge,.phase-badge,.prog{font-size:.85rem;padding:4px 10px;border-radius:999px;background:var(--panel);color:var(--muted)}.level-badge{color:var(--accent);font-weight:700}.phase-badge{color:var(--accent2)}.stage{display:flex;flex-direction:column;align-items:center;gap:18px}.ring-wrap{position:relative;width:220px;height:220px;display:flex;align-items:center;justify-content:center}.ring{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;transform:rotate(-90deg)}.ring-bg{fill:none;stroke:var(--panel);stroke-width:8}.ring-prog{fill:none;stroke:var(--accent);stroke-width:8;stroke-linecap:round;animation-name:deplete;animation-timing-function:linear;animation-fill-mode:forwards}@keyframes deplete{0%{stroke-dashoffset:0}to{stroke-dashoffset:var(--circ)}}.prompt{font-size:3rem;font-weight:800;letter-spacing:2px}.retest-hint{color:var(--accent2);font-weight:600}.answer-box{min-width:160px;min-height:56px;padding:8px 20px;font-size:2.2rem;font-weight:800;text-align:center;background:var(--panel);border-radius:14px;letter-spacing:4px}.numpad{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;width:100%;max-width:320px}.key{font-size:1.8rem;font-weight:700;padding:18px 0;border:none;border-radius:14px;background:var(--panel);color:var(--text);cursor:pointer;min-height:64px}.key:active{background:#232c4d}.key-enter{background:var(--good);color:#06231a}.key-fn{color:var(--muted)}.speed-pick{text-align:center}.speed-pick .title{font-size:1.5rem;margin:12px 0 4px}.speed-card{display:flex;align-items:center;gap:14px;width:100%;border:none;border-radius:16px;background:var(--panel);color:var(--text);padding:18px 22px;margin-top:14px;cursor:pointer;text-align:left}.speed-card:active{background:#232c4d}.speed-emoji{font-size:2rem}.speed-label{font-size:1.4rem;font-weight:800}.speed-time{margin-left:auto;color:var(--accent2);font-weight:700}.problem-prompt{font-family:SF Mono,ui-monospace,Menlo,Consolas,monospace;font-size:2.4rem;font-weight:700;line-height:1.3;margin:8px 0;white-space:pre;text-align:right;min-width:160px;max-width:100%;overflow-x:auto}.problem-text{font-size:1.55rem;font-weight:700;line-height:1.45;text-align:center;white-space:pre-line;max-width:100%;word-break:break-word;margin:6px 4px 2px}.wrong-hint{background:#2a2030;padding:8px 14px;border-radius:10px}.fill-input{width:180px;font-size:2.2rem;font-weight:800;text-align:center;padding:10px;border:2px solid #2b3658;border-radius:14px;background:var(--panel);color:var(--text);outline:none}.fill-input:focus{border-color:var(--accent)}.fill-input.small{width:90px;font-size:1.8rem}.fields{display:flex;gap:18px;align-items:flex-end;justify-content:center}.field{display:flex;flex-direction:column;gap:6px;align-items:center}.field-label{color:var(--muted);font-size:.9rem}.choices{display:grid;gap:12px;width:100%;max-width:360px}.choice{font-size:1.4rem;font-weight:700;padding:16px;border:2px solid #2b3658;border-radius:14px;background:var(--panel);color:var(--text);cursor:pointer}.choice:active{background:#232c4d}.feedback-bar{position:fixed;left:0;right:0;bottom:0;padding:16px max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));animation:fbSlideUp .25s ease;z-index:20}.fb-correct{background:#2ec27e29;border-top:2px solid var(--good)}.fb-wrong{background:#f7b80124;border-top:2px solid var(--accent2)}.fb-content{width:min(560px,100%);margin:0 auto;display:flex;align-items:center;gap:14px}.fb-text{flex:1}.fb-title{font-size:1.3rem;font-weight:800}.fb-correct .fb-title{color:var(--good)}.fb-wrong .fb-title{color:var(--accent2)}.fb-hint{color:var(--muted);margin-top:4px}.fb-next{min-width:120px}@keyframes fbSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.xp-burst{position:relative;display:inline-block}.xp-pop{display:inline-block;color:var(--accent2);font-weight:800;font-size:1.1rem;animation:xpPop .5s cubic-bezier(.2,1.4,.5,1) both}@keyframes xpPop{0%{transform:scale(.4) translateY(6px);opacity:0}60%{transform:scale(1.25) translateY(0);opacity:1}to{transform:scale(1);opacity:1}}.star-burst{position:absolute;left:8px;top:50%;width:0;height:0}.star{position:absolute;font-size:.9rem;animation:starBurst .6s ease-out forwards}@keyframes starBurst{0%{transform:translate(0) scale(.2);opacity:1}to{transform:translate(var(--dx),var(--dy)) scale(1);opacity:0}}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#080c18d1;padding:16px}.card{width:min(420px,100%);background:var(--panel);border-radius:20px;padding:28px;text-align:center;display:flex;flex-direction:column;gap:18px}.card-title{font-size:1.4rem;font-weight:700}.big-fact{font-size:2.4rem;font-weight:800}.big-fact b{color:var(--good)}.hint{color:var(--accent2)}.celebrate .card-title{font-size:1.8rem}.primary{font-size:1.2rem;font-weight:700;padding:16px;border:none;border-radius:14px;background:var(--accent);color:#042231;cursor:pointer}.chart{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:10px 0;max-width:100%}.chart-compact{gap:4px}.cell{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;background:#121a30;color:var(--muted);border:1px solid #1e2740}.chart-compact .cell{width:24px;height:24px;font-size:.72rem}.cell-done{background:var(--good);color:#06231a;border-color:var(--good)}.cell-current{color:var(--accent);border-color:var(--accent);animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{box-shadow:0 0 #4cc9f080}50%{box-shadow:0 0 0 4px #4cc9f000}}.loading{text-align:center;color:var(--muted);padding:40px}.probe-head{text-align:center;margin-bottom:12px}.probe-head h2{margin:4px 0}.probe-target{font-size:5rem;color:var(--accent)}.mute{font-size:1.1rem;padding:0 4px;cursor:pointer}.timer{color:var(--accent);font-variant-numeric:tabular-nums}.timer-low{color:var(--bad);font-weight:800}.lock-screen{text-align:center;width:min(460px,100%)}.lock-emoji{font-size:4rem}.lock-timer{font-size:3rem;font-weight:800;color:var(--accent2);font-variant-numeric:tabular-nums;margin-top:12px}.error-screen{max-width:600px;color:var(--bad)}.error-screen pre{white-space:pre-wrap;color:var(--muted)}@media(max-width:560px){.map .title{font-size:1.3rem}.map .subtitle{font-size:.85rem}.term-title{font-size:1.05rem}.topic-grid{grid-template-columns:1fr;gap:8px}.unit{margin-bottom:12px}.topic-main .chart{display:none}.ring-wrap{width:180px;height:180px}.prompt{font-size:2.6rem}.answer-box{font-size:1.9rem;min-width:130px}.numpad{max-width:100%;gap:10px}.key{font-size:1.6rem;min-height:58px;padding:14px 0}.problem-prompt{font-size:2rem}.problem-text{font-size:1.3rem}.fill-input{width:150px;font-size:1.9rem}.fields{gap:12px}.choice{font-size:1.25rem;padding:14px}.play-head{margin-bottom:12px}.status{gap:6px}.level-badge,.phase-badge,.prog{font-size:.78rem;padding:3px 8px}.big-fact{font-size:2rem}.card{padding:22px 18px}}@media(max-width:360px){.prompt{font-size:2.2rem}.key{min-height:52px;font-size:1.4rem}}@media(hover:none){.topic-main:active,.track-main:active{background:#232c4d}}.parent-entry{position:absolute;top:max(10px,env(safe-area-inset-top));right:max(12px,env(safe-area-inset-right));background:var(--panel);border:none;color:var(--muted);font-size:.82rem;padding:6px 12px;border-radius:999px;cursor:pointer}.parent-gate{width:min(420px,100%);text-align:center}.gate-card{background:var(--panel);border-radius:20px;padding:28px;margin-top:40px;display:flex;flex-direction:column;gap:14px;align-items:center}.gate-emoji{font-size:3rem}.gate-card .fill-input{letter-spacing:8px;text-align:center}.pin-input{-webkit-text-security:none!important;text-security:none;font-family:inherit}.gate-error{color:var(--bad);font-weight:600}.parent{width:min(760px,100%)}.summary-box{margin-bottom:22px}.summary-box .primary{width:100%}.summary-text{margin-top:12px;background:var(--panel);border-radius:14px;padding:16px}.summary-src{display:inline-block;font-size:.78rem;color:var(--muted);margin-bottom:8px}.summary-text pre{white-space:pre-wrap;word-break:break-word;margin:0;font-family:inherit;line-height:1.6;color:var(--text)}.mistake-group{margin-bottom:18px}.mistake-card{background:var(--panel);border-radius:12px;padding:12px 14px;margin-bottom:8px}.mistake-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}.mistake-prompt{font-weight:700;white-space:pre-line}.mistake-time{font-size:.78rem;color:var(--accent2);white-space:nowrap}.mistake-answers{display:flex;gap:16px;flex-wrap:wrap;font-size:.95rem}.ans-wrong{color:var(--bad)}.ans-right{color:var(--good)}.mark-corrected{color:var(--accent);font-size:.85rem;padding:6px 0 0}.data-admin{margin-top:28px;padding-top:16px;border-top:1px solid #232c4d;display:flex;flex-direction:column;gap:10px}.danger-btn{border:none;border-radius:12px;padding:14px;font-size:1rem;font-weight:700;cursor:pointer;background:#ff6b6b29;color:var(--bad)}.danger-btn:active{background:#ff6b6b47}.ghost-danger{background:transparent;color:var(--muted)}