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20px;color:#94a3b8}.no-icon{font-size:48px;display:block;margin-bottom:12px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:flex-end;justify-content:center;z-index:1000}.modal-content{background:#fff;width:100%;max-width:500px;border-radius:20px 20px 0 0;padding:24px;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-title{font-size:20px;font-weight:700;color:#1e293b;margin:0}.modal-close{width:32px;height:32px;border:none;background:#f1f5f9;border-radius:50%;font-size:20px;cursor:pointer;color:#64748b}.mobile-form{display:flex;flex-direction:column;gap:16px}.mobile-form .form-group label{display:block;font-size:14px;font-weight:600;color:#374151;margin-bottom:8px}.mobile-form .form-group input,.mobile-form .form-group textarea{width:100%;padding:14px 16px;border:2px solid #e5e7eb;border-radius:10px;font-size:16px;box-sizing:border-box;transition:border-color .2s ease}.mobile-form .form-group input:focus,.mobile-form .form-group textarea:focus{outline:none;border-color:#06c}.color-options{display:flex;gap:12px;flex-wrap:wrap}.color-btn{width:44px;height:44px;border-radius:50%;border:3px solid transparent;cursor:pointer;transition:all .2s ease}.color-btn.selected{border-color:#1e293b;box-shadow:0 0 0 2px #fff,0 0 0 4px #06c}.form-actions{display:flex;gap:12px;margin-top:8px}.form-actions .cancel-btn,.form-actions .submit-btn{flex:1;padding:14px;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease}.form-actions .cancel-btn{background:#f1f5f9;color:#475569}.form-actions .submit-btn{background:linear-gradient(135deg,#06c,#4a90d9);color:#fff}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;align-items:center;padding:8px 0;background:#fff;box-shadow:0 -2px 8px #0000000f;z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:#94a3b8;padding:8px 16px;border-radius:8px;transition:all .2s ease}.nav-item.active{color:#06c;background:#eff6ff}.nav-icon{font-size:20px}.nav-label{font-size:11px;font-weight:500}@media (min-width: 768px){.mobile-page{max-width:420px;margin:0 auto;box-shadow:0 0 30px #0000001a}.modal-content{max-width:420px}}body{margin:0;font-family:PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}.container{max-width:1200px;margin:0 auto;padding:20px}.header{background-color:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin-bottom:20px;text-align:center}.header h1{margin:0 0 8px;color:#333;font-size:28px}.header p{margin:0;color:#666;font-size:16px}.main{background-color:#fff;padding:30px;border-radius:8px;box-shadow:0 2px 4px #0000001a;min-height:500px;display:flex;flex-direction:column;align-items:center}.controls{width:100%;max-width:800px;margin-bottom:30px}.upload-section{display:flex;justify-content:space-between;margin-bottom:20px;gap:20px}.upload-box{flex:1;display:flex;flex-direction:column;align-items:center;padding:20px;border:2px dashed #ccc;border-radius:8px;transition:all .3s ease}.upload-box:hover{border-color:#06c}.upload-box label{margin-bottom:10px;font-weight:700;color:#333;cursor:pointer}.upload-box input{display:block;width:100%;margin-top:10px}.action-buttons{display:flex;justify-content:center;gap:20px;margin-top:20px}button{padding:10px 20px;border:none;border-radius:4px;background-color:#06c;color:#fff;font-weight:700;cursor:pointer;transition:background-color .3s ease}button:hover{background-color:#05a}button:disabled{background-color:#ccc;cursor:not-allowed}button.emboss-toggle.active{background-color:#f60}button.clear-button{background-color:#f33}button.clear-button:hover{background-color:#c00}.card-container{perspective:1000px;width:300px;height:400px;margin:20px auto;cursor:pointer;will-change:transform}.card{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .8s;-webkit-transform-style:preserve-3d;-webkit-transition:transform .8s}.card.flipped{transform:rotateY(180deg);-webkit-transform:rotateY(180deg)}.card-front,.card-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:10px;overflow:hidden;box-shadow:0 4px 8px #0003}.card-back{transform:rotateY(180deg);-webkit-transform:rotateY(180deg)}.card-front img,.card-back img{width:100%;height:100%;object-fit:cover}.flip-hint{text-align:center;margin-top:10px;color:#666;font-size:14px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;width:100%;color:#888;font-size:18px}.emboss-text{text-shadow:-1px -1px 0 rgba(0,0,0,.3),1px 1px 0 rgba(255,255,255,.8);color:#666}.footer{margin-top:30px;text-align:center;font-size:14px;color:#888}a{color:#06c;text-decoration:none}a:hover{text-decoration:underline}@media (max-width: 768px){.upload-section{flex-direction:column}.card-container{width:250px;height:350px}}