:root{--bg-top: #0f0c29;--bg-mid: #302b63;--bg-bot: #24243e;--primary: #a855f7;--primary-2: #6366f1;--accent: #ec4899;--x-color: #38bdf8;--o-color: #fb7185;--card: rgba(255, 255, 255, .07);--card-border: rgba(255, 255, 255, .12);--text: #f1f5f9;--text-dim: #94a3b8;--gold: #fbbf24}*{margin:0;padding:0;box-sizing:border-box}html,body{min-height:100%}body{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,-apple-system,sans-serif;background:linear-gradient(160deg,var(--bg-top),var(--bg-mid) 55%,var(--bg-bot));background-attachment:fixed;color:var(--text);-webkit-tap-highlight-color:transparent;overflow-x:hidden}#root{min-height:100vh}.app{position:relative;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:18px 16px 30px;z-index:1;max-width:520px;margin:0 auto;width:100%}.topbar{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.brand{display:flex;align-items:center;gap:10px}.brand-logo{width:42px;height:42px;display:grid;place-items:center;font-size:24px;font-weight:900;color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:12px;box-shadow:0 6px 20px #a855f773;animation:float 3.4s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.brand h1{font-size:19px;letter-spacing:1px;background:linear-gradient(90deg,#c4b5fd,#f0abfc,#a5b4fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.brand-sub{font-size:11px;color:var(--text-dim);letter-spacing:2px}.topbar-actions{display:flex;gap:8px}.chip{border:none;cursor:pointer;font-family:inherit;font-size:13px;color:var(--text);padding:8px 12px;border-radius:999px;background:var(--card);border:1px solid var(--card-border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .15s ease,background .2s ease}.chip:hover{transform:translateY(-2px);background:#ffffff1f}.chip-coin{color:var(--gold);font-weight:700;box-shadow:0 0 14px #fbbf2433}.chip-checkin{background:linear-gradient(135deg,#a855f740,#ec489940)}.score-strip{width:100%;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}.score-cell{background:var(--card);border:1px solid var(--card-border);border-radius:14px;padding:8px 4px;text-align:center;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.score-label{display:block;font-size:11px;color:var(--text-dim)}.score-value{display:block;font-size:20px;font-weight:800;background:linear-gradient(90deg,#e0e7ff,#fbcfe8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.mode-selector{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;width:100%;margin-bottom:16px}.mode-card{background:var(--card);border:1px solid var(--card-border);border-radius:16px;padding:10px 6px;color:var(--text);cursor:pointer;font-family:inherit;display:flex;flex-direction:column;align-items:center;gap:2px;transition:all .2s ease;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mode-card:hover{transform:translateY(-3px)}.mode-card.active{border-color:var(--primary);background:linear-gradient(160deg,#a855f74d,#6366f140);box-shadow:0 8px 24px #a855f766}.mode-icon{font-size:22px}.mode-label{font-size:13px;font-weight:700}.mode-desc{font-size:9.5px;color:var(--text-dim)}.game-wrap{width:100%;flex:1;display:flex;flex-direction:column;align-items:center}.board-area{width:100%;max-width:440px}.player-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.player-badge{display:flex;align-items:center;gap:7px;background:var(--card);border:1px solid var(--card-border);padding:7px 11px;border-radius:12px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.player-mark{width:26px;height:26px;display:grid;place-items:center;font-weight:900;border-radius:8px;font-size:15px}.player-x .player-mark{color:var(--x-color);background:#38bdf826;box-shadow:0 0 12px #38bdf859}.player-o .player-mark{color:var(--o-color);background:#fb718526;box-shadow:0 0 12px #fb718559}.player-name{font-size:12.5px;font-weight:600}.player-score{font-size:14px;font-weight:800;color:var(--gold)}.turn-indicator{text-align:center;flex:0 0 auto}.turn-text{font-size:13px;font-weight:700;padding:5px 10px;border-radius:999px;white-space:nowrap}.turn-x{color:var(--x-color);background:#38bdf81a;animation:pulse 1.2s infinite}.turn-o{color:var(--o-color);background:#fb71851a;animation:pulse 1.2s infinite}.turn-end{color:var(--gold);background:#fbbf241f}@keyframes pulse{0%,to{opacity:1}50%{opacity:.55}}.board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;aspect-ratio:1;background:#00000040;border:1px solid var(--card-border);border-radius:22px;padding:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 20px 50px #00000073,inset 0 0 40px #a855f70f}.cell{position:relative;border:1px solid var(--card-border);background:#ffffff0d;border-radius:16px;cursor:pointer;display:grid;place-items:center;font-family:inherit;transition:all .18s ease;overflow:hidden}.cell:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at center,rgba(255,255,255,.12),transparent 70%);opacity:0;transition:opacity .18s ease}.cell:hover:not(:disabled){transform:translateY(-3px);border-color:#ffffff59}.cell:hover:not(:disabled):before{opacity:1}.cell:active:not(:disabled){transform:scale(.94)}.cell-hover:after{content:"";position:absolute;width:46%;height:46%;border-radius:50%;border:3px dashed rgba(168,85,247,.5);animation:spin 6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.cell:disabled{cursor:default}.mark{font-size:clamp(34px,12vw,56px);font-weight:900;animation:pop .35s cubic-bezier(.34,1.56,.64,1)}@keyframes pop{0%{transform:scale(.2) rotate(-30deg);opacity:0}70%{transform:scale(1.18)}to{transform:scale(1);opacity:1}}.cell-x .mark{color:var(--x-color);text-shadow:0 0 18px rgba(56,189,248,.7)}.cell-o .mark{color:var(--o-color);text-shadow:0 0 18px rgba(251,113,133,.7)}.cell-win{animation:winGlow 1s ease infinite alternate}.cell-win.cell-x{background:#38bdf838;border-color:var(--x-color)}.cell-win.cell-o{background:#fb718538;border-color:var(--o-color)}@keyframes winGlow{0%{box-shadow:0 0 10px #a855f759;transform:scale(1)}to{box-shadow:0 0 28px #a855f7bf;transform:scale(1.05)}}.btn-reset{margin-top:14px;width:100%}.btn{border:none;cursor:pointer;font-family:inherit;font-size:15px;font-weight:700;padding:13px 24px;border-radius:14px;transition:all .18s ease}.btn:active{transform:scale(.96)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 8px 24px #a855f773}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 30px #a855f799}.btn-ghost{color:var(--text);background:var(--card);border:1px solid var(--card-border)}.btn-ghost:hover{background:#ffffff1f}.btn-block{width:100%}.btn-mini{font-size:12px;padding:8px 14px;color:var(--text-dim);background:var(--card);border:1px solid var(--card-border);border-radius:999px}.btn-mini:hover{color:var(--text)}.footer{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:18px}.footer-hint{font-size:10.5px;color:var(--text-dim)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#080614b3;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:grid;place-items:center;z-index:50;padding:16px;animation:fadeIn .25s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{position:relative;width:100%;max-width:440px;background:linear-gradient(170deg,#241d4d,#17123a);border:1px solid var(--card-border);border-radius:24px;padding:26px 22px;box-shadow:0 30px 80px #0009,0 0 60px #a855f71f;animation:slideUp .35s cubic-bezier(.34,1.3,.64,1);max-height:86vh;overflow-y:auto}@keyframes slideUp{0%{transform:translateY(30px) scale(.94);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}.modal-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;border:1px solid var(--card-border);background:var(--card);color:var(--text-dim);font-size:14px;cursor:pointer}.modal-close:hover{color:var(--text)}.modal-title{font-size:22px;text-align:center;margin-bottom:4px;background:linear-gradient(90deg,#c4b5fd,#f0abfc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.modal-sub{text-align:center;font-size:13px;color:var(--text-dim);margin-bottom:18px}.highlight{color:var(--gold)}.result-modal{text-align:center}.result-emoji{font-size:64px;margin-bottom:6px;animation:pop .5s cubic-bezier(.34,1.56,.64,1)}.result-title{font-size:26px;margin-bottom:6px}.result-sub{color:var(--text-dim);font-size:13px;margin-bottom:20px}.result-actions{display:flex;flex-direction:column;gap:10px}.welcome-modal{text-align:center}.welcome-emoji{font-size:60px;animation:float 3s ease-in-out infinite}.welcome-list{list-style:none;text-align:left;margin:14px 0 20px;display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--text)}.welcome-list li{background:var(--card);border:1px solid var(--card-border);border-radius:10px;padding:9px 12px}.reward-track{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-bottom:16px}.reward-cell{display:flex;flex-direction:column;align-items:center;gap:2px;background:var(--card);border:1px solid var(--card-border);border-radius:12px;padding:8px 2px;font-size:10px;color:var(--text-dim)}.reward-day{font-size:9.5px}.reward-icon{font-size:16px}.reward-value{font-weight:700;color:var(--gold)}.reward-cell.reward-today{border-color:var(--primary);background:#a855f733;animation:pulse 1.4s infinite;transform:scale(1.05)}.reward-cell.reward-done{border-color:#4ade8066;background:#4ade8014}.reward-toast{text-align:center;padding:10px;border-radius:12px;background:#fbbf241f;border:1px solid rgba(251,191,36,.3);color:var(--text);font-size:13.5px;margin-bottom:12px;animation:pop .4s cubic-bezier(.34,1.56,.64,1)}.signin-btn{margin-top:4px}.checkin-history{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;justify-content:center}.history-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:0 0 8px #a855f799}.history-empty{font-size:11.5px;color:var(--text-dim)}.progress-bar{height:8px;border-radius:999px;background:var(--card);overflow:hidden;margin-bottom:18px;border:1px solid var(--card-border)}.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .5s ease}.achievement-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.achievement-card{display:flex;gap:8px;align-items:flex-start;background:var(--card);border:1px solid var(--card-border);border-radius:14px;padding:10px}.achievement-card.unlocked{background:#a855f71a;border-color:#a855f766}.achievement-card.locked{opacity:.5}.achievement-card.locked .achievement-icon{filter:grayscale(1)}.achievement-icon{font-size:22px}.achievement-name{font-size:13px;font-weight:700}.achievement-desc{font-size:10.5px;color:var(--text-dim)}.achievement-reward{font-size:10.5px;color:var(--gold)}.toast-stack{position:fixed;top:18px;left:50%;transform:translate(-50%);z-index:100;display:flex;flex-direction:column;gap:8px;width:90%;max-width:420px;pointer-events:none}.toast{display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#1e1846f2,#3c285af2);border:1px solid rgba(168,85,247,.5);border-radius:14px;padding:11px 14px;box-shadow:0 12px 30px #00000080;animation:toastIn .45s cubic-bezier(.34,1.4,.64,1)}@keyframes toastIn{0%{transform:translateY(-30px);opacity:0}to{transform:translateY(0);opacity:1}}.toast-icon{font-size:26px}.reward-fade{overflow:hidden;animation:rewardFade 2.8s ease forwards}@keyframes rewardFade{0%{opacity:1;max-height:60px;margin-bottom:20px}55%{opacity:0;max-height:60px;margin-bottom:20px}to{opacity:0;max-height:0;margin-bottom:0}}.toast-title{font-size:13.5px;font-weight:700;color:#e9d5ff}.toast-desc{font-size:12px;color:var(--gold)}@media (max-width: 420px){.brand h1{font-size:16px}.chip{font-size:12px;padding:7px 10px}.mode-desc{display:none}.mode-card{padding:10px 4px}.player-name{display:none}.achievement-grid{grid-template-columns:1fr}.footer-hint{display:none}}