:root{--ink:#253047;--pink:#ff6b88;--yellow:#ffd65a;--blue:#71cfe5;--purple:#8f79dc;--green:#75c98b}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff8e7;font-family:"Arial Rounded MT Bold","Microsoft YaHei",Arial,sans-serif}button,input{font:inherit}button{color:inherit}.hidden{display:none!important}main{min-height:100vh;overflow:hidden;position:relative;background:radial-gradient(circle at 8% 17%,#fff 0 3px,transparent 4px),linear-gradient(#bfeaf2 0 430px,#fff8e7 430px)}.cloud{position:absolute;background:#ffffffc0;width:130px;height:38px;border-radius:40px;top:165px}.cloud:before,.cloud:after{content:"";position:absolute;background:inherit;border-radius:50%;bottom:0}.cloud:before{width:60px;height:60px;left:22px}.cloud:after{width:45px;height:45px;right:18px}.cloud-one{left:-28px}.cloud-two{right:-40px;top:105px;transform:scale(.8)}.topbar{width:min(1120px,calc(100% - 40px));margin:auto;min-height:78px;display:flex;justify-content:space-between;align-items:center;border-bottom:2px dashed #2530472e;position:relative;z-index:2}.brand{color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:11px;font-size:20px;font-weight:900}.brand-mark{width:32px;height:32px;display:grid;grid-template-columns:repeat(2,1fr);gap:3px;transform:rotate(-5deg)}.brand-mark i{border:2px solid var(--ink);border-radius:4px;background:var(--pink);box-shadow:1px 1px 0 var(--ink)}.brand-mark i:nth-child(2){background:var(--yellow)}.brand-mark i:nth-child(3){background:var(--blue)}.brand-mark i:nth-child(4){background:var(--green)}.parent-note{font-size:12px;background:#ffffffa6;padding:9px 14px;border-radius:30px}.hero{width:min(1120px,calc(100% - 40px));margin:auto;padding:52px 0 92px;position:relative;text-align:center}.eyebrow{display:inline-block;background:#fff;padding:8px 16px;border:2px solid var(--ink);border-radius:30px;box-shadow:3px 3px 0 var(--ink);font-size:12px}.hero h1{margin:22px auto 18px;font-size:clamp(48px,7vw,88px);line-height:1.02;letter-spacing:-.055em}.hero h1 span{color:var(--pink);text-shadow:3px 3px 0 #fff,5px 5px 0 var(--ink);white-space:nowrap}.hero p{max-width:600px;margin:auto;line-height:1.8;color:#43576a}.doodles{position:absolute;inset:30px 8% auto;display:flex;justify-content:space-between}.doodles b:nth-child(1){color:var(--yellow);font-size:45px}.doodles b:nth-child(2){color:var(--blue);font-size:26px}.doodles b:nth-child(3){color:var(--pink);font-size:36px}.play-area{width:min(1120px,calc(100% - 40px));margin:-32px auto 72px;display:grid;grid-template-columns:.82fr 1.18fr;background:#fff;border:3px solid var(--ink);border-radius:28px;box-shadow:10px 10px 0 var(--ink);position:relative;z-index:2;overflow:hidden}.upload-panel{padding:28px;background:#fff2bd;border-right:3px solid var(--ink);min-height:610px}.upload-panel.is-dragging{background:#dcf6f8}.panel-label{color:#59667b;font-size:11px;letter-spacing:.08em;font-weight:900}.upload-button{min-height:510px;width:100%;border:3px dashed #9b8541;border-radius:22px;background:#ffffff6b;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;cursor:pointer}.sun-icon{width:92px;height:92px;border-radius:50%;display:grid;place-items:center;background:var(--yellow);border:3px solid var(--ink);font-size:50px;box-shadow:6px 6px 0 var(--ink);margin-bottom:14px}.upload-button strong{font-size:25px}.upload-button span:last-child{font-size:13px;color:#687188}.photo-card{margin-top:24px;background:#fff;padding:12px 12px 18px;border:3px solid var(--ink);border-radius:18px;transform:rotate(-1.5deg);box-shadow:6px 6px 0 #2530472e}.photo-card img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;display:block}.photo-card button{width:100%;margin-top:14px;border:0;background:transparent;text-decoration:underline;font-weight:900;cursor:pointer}.game-panel{padding:28px 32px 32px;min-width:0}.game-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:22px}.game-header h2{font-size:25px;margin:7px 0 0}.move-count{min-width:72px;text-align:center;background:#e8dcff;border:2px solid var(--ink);border-radius:14px;padding:6px 10px}.move-count b{display:block;font-size:23px}.move-count small{font-size:9px}.empty-state{min-height:450px;display:flex;flex-direction:column;justify-content:center;align-items:center;color:#7b8291}.empty-grid{width:260px;height:260px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:#e8dcff;border:8px solid #e8dcff;border-radius:20px;box-shadow:0 0 0 3px #aa9cca}.empty-grid i{display:grid;place-items:center;background:#f5f0ff;border-radius:6px;font-style:normal;color:#b0a2cf;font-size:22px}.empty-state p{font-size:13px;margin-top:24px}.puzzle-wrap{position:relative}.tile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;background:var(--purple);border:8px solid var(--purple);border-radius:20px;aspect-ratio:1;overflow:hidden;box-shadow:0 0 0 3px var(--ink)}.tile{border:0;padding:0;background:#ddd;overflow:hidden;cursor:pointer;touch-action:manipulation;border-radius:5px;transition:.15s}.tile img{width:100%;height:100%;display:block;object-fit:cover;pointer-events:none}.tile.is-selected{transform:scale(.88) rotate(-3deg);outline:8px solid var(--yellow);z-index:2}.picture-hint{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:5;border:8px solid var(--blue);border-radius:20px}.celebration{position:absolute;inset:17%;z-index:6;background:#fff;border:3px solid var(--ink);border-radius:24px;box-shadow:8px 8px 0 var(--pink);display:grid;grid-template-columns:auto 1fr auto;align-items:center;text-align:center;padding:22px;animation:pop .35s}.celebration strong{font-size:32px;color:var(--pink)}.celebration span{font-size:28px;color:var(--yellow)}.celebration small{grid-column:1/-1;margin-top:7px}.game-buttons{display:grid;grid-template-columns:1.35fr 1fr;gap:12px;margin-top:22px}.game-buttons button{border:3px solid var(--ink);border-radius:16px;padding:16px 12px;font-weight:900;cursor:pointer;box-shadow:4px 4px 0 var(--ink)}.start-button{background:var(--pink);color:#fff}.hint-button{background:var(--blue)}.grownup-tip{width:min(860px,calc(100% - 40px));margin:0 auto 70px;background:#dff5e5;border:2px solid var(--ink);border-radius:18px;padding:24px 28px;box-shadow:5px 5px 0 var(--green);display:grid;grid-template-columns:160px 1fr;gap:24px;align-items:center}.grownup-tip span{font-weight:900}.grownup-tip p{margin:0;line-height:1.75;font-size:13px}footer{width:min(1120px,calc(100% - 40px));margin:auto;border-top:2px dashed #d5cdbb;min-height:84px;display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#6e7480}@keyframes pop{from{transform:scale(.4);opacity:0}to{transform:scale(1);opacity:1}}@media(max-width:800px){main{background:linear-gradient(#bfeaf2 0 390px,#fff8e7 390px)}.parent-note{display:none}.play-area{grid-template-columns:1fr;box-shadow:7px 7px 0 var(--ink)}.upload-panel{border-right:0;border-bottom:3px solid var(--ink);min-height:auto}.upload-button{min-height:370px}.game-panel{padding:26px}.grownup-tip{grid-template-columns:1fr;gap:8px}}@media(max-width:480px){.topbar,.hero,.play-area,footer{width:calc(100% - 26px)}.hero h1{font-size:47px}.upload-panel,.game-panel{padding:20px 14px}.game-header h2{font-size:20px}.tile-grid{gap:5px;border-width:6px}.game-buttons{grid-template-columns:1fr}.empty-grid{width:220px;height:220px}.grownup-tip{width:calc(100% - 26px);padding:20px}footer{flex-direction:column;align-items:flex-start;justify-content:center;gap:8px}}