:root{
  --ink:#141a2d;--muted:#687089;--white:#fff;--glass:rgba(255,255,255,.76);
  --blue:#3b82f6;--cyan:#06b6d4;--green:#22c55e;--yellow:#facc15;--orange:#fb923c;
  --pink:#f472b6;--purple:#8b5cf6;--red:#ef4444;--line:rgba(255,255,255,.72);
  --shadow:0 24px 70px rgba(37,99,235,.18);--soft:0 14px 34px rgba(15,23,42,.12);
  --r:30px;
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;color:var(--ink);background:
radial-gradient(circle at 12% 7%,#fff7ad 0 7%,transparent 17%),
radial-gradient(circle at 85% 16%,#ffd6ea 0 10%,transparent 22%),
linear-gradient(135deg,#bfeeff 0%,#eefcff 48%,#fff3c4 100%);overflow-x:hidden}
button,input,select{font:inherit}button{border:0;cursor:pointer}
.stars-bg:before,.stars-bg:after{content:"";position:fixed;inset:0;pointer-events:none;background-image:radial-gradient(#fff 1.5px,transparent 2px);background-size:90px 90px;opacity:.32;animation:drift 16s linear infinite}
.stars-bg:after{background-size:140px 140px;opacity:.22;animation-duration:25s}
@keyframes drift{to{transform:translateY(90px)}}
.app{max-width:1240px;margin:0 auto;padding:18px;position:relative;z-index:1}
.topbar,.tabs,.hero,.daily,.teacher-card,.history-card,.game-top,.coach-line,.game-board,.finish-card,.quick-panel{background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(18px);box-shadow:var(--shadow)}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:14px;border-radius:34px;padding:16px}
.brand{display:flex;align-items:center;gap:14px}.brand-icon{width:74px;height:74px;border-radius:28px;background:linear-gradient(135deg,#3478ff,#2dd4bf);display:grid;place-items:center;font-size:42px;box-shadow:var(--soft)}
.brand h1{margin:0;font-size:28px}.brand p{margin:4px 0 0;color:var(--muted)}
.player-box{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.player-box input{width:170px;border:1px solid rgba(37,99,235,.16);border-radius:20px;padding:14px;background:#fff;font-weight:850;outline:none}
.stat{min-width:88px;background:#fff;border-radius:22px;padding:10px 12px;text-align:center;box-shadow:0 8px 22px rgba(15,23,42,.08)}
.stat b{display:block;font-size:24px;color:var(--blue)}.stat span{font-size:12px;color:var(--muted)}
.tabs{margin-top:14px;border-radius:26px;padding:8px;display:flex;gap:8px;flex-wrap:wrap}
.tab{flex:1;min-width:135px;padding:13px 14px;border-radius:20px;background:transparent;color:#43506a;font-weight:950}
.tab.active,.tab:hover{background:#fff;color:var(--blue);box-shadow:0 8px 22px rgba(15,23,42,.07)}
.screen{display:none}.screen.active{display:block}
.hero{margin-top:18px;border-radius:42px;padding:32px;display:grid;grid-template-columns:1.35fr .82fr;gap:18px;background:linear-gradient(135deg,rgba(59,130,246,.96),rgba(6,182,212,.92),rgba(34,197,94,.88));color:#fff}
.badge{display:inline-flex;width:max-content;padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.19);border:1px solid rgba(255,255,255,.32);color:#fff;font-weight:1000;font-size:12px}
.badge.dark{background:#e0f2fe;color:#0369a1;border-color:#bae6fd}
.hero h2{font-size:44px;line-height:1.1;margin:18px 0 12px}.hero p{font-size:18px;line-height:1.75;margin:0;opacity:.96}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.big{font-size:18px;padding:17px 24px!important}
.primary,.ghost,.soft,.success,.danger,.back{border-radius:22px;padding:14px 19px;font-weight:1000}
.primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;box-shadow:var(--soft)}
.ghost{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);color:#fff}
.soft{background:#fff;color:var(--blue);box-shadow:var(--soft)}.success{background:linear-gradient(135deg,#16a34a,#22c55e);color:#fff}.danger{background:#fee2e2;color:#b91c1c}.back{width:58px;height:58px;background:#fff;color:var(--blue);font-size:24px}
.coach-card{border-radius:34px;padding:22px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.32);text-align:center}.coach{font-size:82px}.coach-card h3{font-size:26px;margin:8px 0}.coach-card p{font-size:15px}
.brain-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}.brain-grid div{background:rgba(255,255,255,.18);border-radius:20px;padding:12px}.brain-grid b{display:block;font-size:26px}.brain-grid span{font-size:12px}
.daily{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-top:16px;border-radius:30px;padding:18px}.daily h3{margin:0 0 4px}.daily p{margin:0;color:var(--muted)}
.daily-progress{min-width:260px}.daily-progress span{font-weight:1000;color:var(--blue)}
.bar,.progress{height:14px;border-radius:999px;background:rgba(255,255,255,.7);overflow:hidden;box-shadow:inset 0 0 0 1px rgba(255,255,255,.5)}.bar i,.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--green),var(--yellow),var(--orange));border-radius:999px;transition:.25s}
.section-title{margin:28px 0 14px}.section-title h3{font-size:30px;margin:0 0 6px}.section-title p{margin:0;color:var(--muted)}
.card-grid,.world-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.mission{position:relative;overflow:hidden;background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.86);border-radius:34px;padding:20px;box-shadow:var(--shadow);transition:.16s transform}
.mission:hover{transform:translateY(-7px)}.mission:before{content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;background:linear-gradient(135deg,var(--c1),var(--c2));opacity:.18}
.icon{width:78px;height:78px;border-radius:30px;display:grid;place-items:center;font-size:42px;background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:var(--soft)}
.mission h4{font-size:22px;margin:16px 0 8px}.mission p{color:var(--muted);line-height:1.6;margin:0}.mission small{display:block;margin-top:10px;color:#475569;font-weight:850}.mission .stage-row{display:flex;gap:6px;margin-top:14px}.dot{width:26px;height:10px;border-radius:999px;background:#e5e7eb}.dot.done{background:linear-gradient(135deg,var(--c1),var(--c2))}
.mission button{margin-top:16px;width:100%;padding:14px;border-radius:20px;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;font-weight:1000;box-shadow:var(--soft)}
.quick-panel{border-radius:30px;padding:18px;display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:end}.quick-panel label{display:grid;gap:8px;color:#4b5563;font-weight:900}.quick-panel select{padding:13px;border-radius:18px;border:1px solid #e5e7eb;background:#fff;outline:none}
.quick-preview{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.report-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.report-card{background:#fff;border-radius:28px;padding:18px;box-shadow:var(--shadow)}.report-card b{display:block;font-size:32px;color:var(--blue)}.report-card span{color:var(--muted)}
.history-card{margin-top:18px;border-radius:30px;padding:20px}.history-list{display:grid;gap:10px}.history-row{display:flex;justify-content:space-between;gap:12px;background:#fff;border-radius:18px;padding:13px 14px}.history-row span{color:var(--muted)}
.teacher-card{border-radius:34px;padding:26px;margin-top:20px}.teacher-card p{color:var(--muted);line-height:1.7}.teacher-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.teacher-grid div{background:#fff;border-radius:24px;padding:18px}.teacher-grid li{line-height:1.8;color:#475569}
.game-top{margin-top:18px;border-radius:34px;padding:16px;display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center}.game-top h2{font-size:31px;margin:8px 0 0}
.game-score{min-width:145px;background:#fff;border-radius:24px;padding:12px;text-align:center;box-shadow:var(--soft)}.game-score span{display:block;color:var(--muted)}.game-score b{font-size:28px;color:var(--blue)}
.progress{margin:14px 4px 0}
.coach-line{margin-top:14px;border-radius:30px;padding:16px;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;background:#fff7ed;border-color:#fed7aa}.bot{width:62px;height:62px;border-radius:24px;background:#ffedd5;display:grid;place-items:center;font-size:36px}.coach-line p{margin:5px 0 0;color:#7c2d12;line-height:1.55}.coach-line button{width:54px;height:54px;border-radius:20px;background:#fff;border:1px solid #fed7aa;font-size:22px}
.game-board{margin-top:14px;min-height:500px;border-radius:40px;padding:22px}
.question{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;padding:18px;border-radius:30px;background:linear-gradient(135deg,#eff6ff,#ecfeff);border:1px solid #dbeafe;margin-bottom:18px}.question h3{font-size:28px;line-height:1.32;margin:0}.question p{color:var(--muted);line-height:1.6;margin:6px 0 0}.target{padding:10px 14px;border-radius:18px;background:#fff;border:1px solid #bfdbfe;color:#1d4ed8;font-weight:1000;white-space:nowrap}
.play.two{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:center}.panel{background:#fff;border:1px solid #e5e7eb;border-radius:32px;padding:20px;box-shadow:var(--soft)}.panel h4{font-size:24px;margin:0 0 10px}.panel p{color:var(--muted);line-height:1.7}
.answer{display:flex;gap:10px;align-items:center;margin-top:12px}.answer input{flex:1;min-width:0;padding:15px;border-radius:20px;border:2px solid #e5e7eb;outline:none;font-size:22px;font-weight:1000}.answer input:focus{border-color:#93c5fd}.answer span{font-weight:1000;color:#475569}
.feedback{margin-top:14px;padding:14px 16px;border-radius:20px;line-height:1.65;font-weight:900}.feedback.info{background:#e0f2fe;color:#075985}.feedback.good{background:#dcfce7;color:#166534}.feedback.bad{background:#fee2e2;color:#991b1b}
.actions{position:sticky;bottom:12px;margin-top:16px;padding:10px;border-radius:28px;background:rgba(255,255,255,.64);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.72);display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.actions button{font-size:16px}.hidden{display:none!important}
.object-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.obj{width:48px;height:48px;border-radius:18px;background:linear-gradient(135deg,#fff7ad,#bbf7d0);display:grid;place-items:center;font-size:26px;box-shadow:var(--soft)}
.number-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.num-btn,.choice{padding:14px;border-radius:18px;background:#f8fbff;border:2px solid #e5e7eb;font-size:20px;font-weight:1000}.num-btn.active,.choice.active{border-color:#60a5fa;background:#dbeafe;color:#1d4ed8}
.pizza{width:min(330px,82vw);aspect-ratio:1;border-radius:50%;margin:auto;position:relative;border:18px solid #92400e;background:conic-gradient(#fbbf24 0 45deg,#f59e0b 45deg 90deg,#fbbf24 90deg 135deg,#f59e0b 135deg 180deg,#fbbf24 180deg 225deg,#f59e0b 225deg 270deg,#fbbf24 270deg 315deg,#f59e0b 315deg 360deg);box-shadow:inset 0 0 0 10px #fde68a,0 24px 48px rgba(146,64,14,.22)}
.slice{position:absolute;width:46px;height:46px;border-radius:50%;background:#fff;border:3px solid #fef3c7;color:#92400e;font-weight:1000;box-shadow:0 8px 18px rgba(15,23,42,.16)}.slice.selected{background:#22c55e;color:#fff;transform:scale(1.12)}
.slice:nth-child(1){left:46%;top:7%}.slice:nth-child(2){right:17%;top:20%}.slice:nth-child(3){right:11%;bottom:34%}.slice:nth-child(4){right:30%;bottom:12%}.slice:nth-child(5){left:30%;bottom:12%}.slice:nth-child(6){left:11%;bottom:34%}.slice:nth-child(7){left:17%;top:20%}.slice:nth-child(8){left:43%;top:42%}
.line-scene{height:260px;position:relative;border-radius:32px;background:linear-gradient(180deg,#dff8ff,#bae6fd);overflow:hidden}.line-scene:before{content:"";position:absolute;left:8%;right:8%;bottom:82px;height:18px;border-radius:20px;background:#334155}.runner{position:absolute;bottom:142px;width:76px;height:76px;border-radius:30px;display:grid;place-items:center;background:linear-gradient(135deg,#fff7ad,#fde68a);font-size:40px;box-shadow:var(--soft);transform:translateX(-50%);transition:.2s left}.tick{position:absolute;bottom:108px;transform:translateX(-50%);text-align:center;font-weight:1000}.tick i{display:block;width:4px;height:28px;background:#334155;margin:0 auto 5px;border-radius:4px}.slider{width:100%;accent-color:var(--blue)}
.grid{display:grid;gap:5px;width:max-content;max-width:100%;margin:auto;padding:16px;border-radius:30px;background:#f8fbff;border:1px solid #e5e7eb}.cell{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#93c5fd,#22c55e);box-shadow:inset -5px -5px 0 rgba(15,23,42,.09)}
.pattern-row{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;padding:18px}.gem{width:68px;height:68px;border-radius:24px;display:grid;place-items:center;font-size:36px;background:#f8fbff;border:2px solid #e5e7eb;box-shadow:var(--soft)}.options{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.finish-card{max-width:720px;margin:38px auto;padding:34px;border-radius:42px;text-align:center}.finish-icon{font-size:96px}.finish-card h2{font-size:42px;margin:8px 0}.finish-card p{color:var(--muted);line-height:1.7}.reward-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}.reward-grid div{padding:16px;border-radius:26px;background:#fff;border:1px solid #e5e7eb}.reward-grid b{display:block;font-size:34px;color:var(--blue)}.reward-grid span{color:var(--muted)}.learn-box{text-align:left;background:#fff7ed;border:1px solid #fed7aa;border-radius:28px;padding:18px;margin-bottom:18px}.learn-box h3{margin:0 0 8px}.learn-box li{line-height:1.8;color:#7c2d12}
.toast{position:fixed;right:20px;bottom:20px;z-index:50;padding:14px 18px;border-radius:18px;background:#111827;color:#fff;box-shadow:var(--shadow)}
@media(max-width:950px){.topbar,.hero,.daily,.game-top,.play.two,.teacher-grid{grid-template-columns:1fr;display:grid}.player-box{justify-content:flex-start}.card-grid,.world-grid,.quick-preview{grid-template-columns:repeat(2,1fr)}.quick-panel{grid-template-columns:1fr}.report-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.app{padding:10px}.brand h1{font-size:21px}.hero{padding:22px}.hero h2{font-size:32px}.card-grid,.world-grid,.quick-preview,.report-grid{grid-template-columns:1fr}.game-board{padding:14px;min-height:auto}.question{display:grid}.target{white-space:normal}.reward-grid{grid-template-columns:1fr}.coach-line{grid-template-columns:auto 1fr}.coach-line button{grid-column:1/-1;width:100%}.actions{position:relative;bottom:auto}.actions button{width:100%}.number-grid,.options{grid-template-columns:repeat(2,1fr)}}