:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;margin:0;padding:20px}.container{max-width:1200px;margin:0 auto;background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 60px #0000004d}h1{text-align:center;color:#333;margin-bottom:10px;font-size:32px;display:flex;align-items:center;justify-content:center;gap:12px}.title-icon{width:40px;height:40px;border-radius:8px;object-fit:cover;box-shadow:0 2px 8px #0000001a}.subtitle{text-align:center;color:#666;margin-bottom:20px}.announcement{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;padding:20px;margin-bottom:30px;display:flex;align-items:center;gap:15px;box-shadow:0 4px 15px #667eea4d;animation:slideIn .5s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.announcement-icon{font-size:32px;flex-shrink:0}.announcement-content{flex:1;color:#fff}.announcement-content p{margin:0 0 12px;font-size:15px;line-height:1.5}.join-group-btn{display:inline-block;background:#fff;color:#667eea;padding:10px 24px;border-radius:25px;text-decoration:none;font-weight:600;font-size:14px;transition:all .3s;box-shadow:0 2px 8px #0000001a}.join-group-btn:hover{background:#f0f1ff;transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.upload-area{border:3px dashed #667eea;border-radius:15px;padding:60px 20px;text-align:center;cursor:pointer;transition:all .3s;background:#f8f9ff;margin-bottom:30px;position:relative;min-height:200px}.upload-area.has-image{padding:20px;min-height:auto;display:flex;align-items:center;justify-content:center;cursor:pointer}.upload-area.has-image:hover .change-image-hint{opacity:1}.upload-area:hover,.upload-area.dragover{border-color:#764ba2;background:#f0f1ff;transform:scale(1.02)}.upload-placeholder{width:100%}.upload-preview-container{position:relative;display:inline-block;max-width:100%;width:100%}.upload-preview-image{max-width:100%;width:100%;height:auto;display:block;border-radius:10px}.upload-icon{font-size:64px;margin-bottom:20px}.upload-text{font-size:18px;color:#667eea;font-weight:500}input[type=file]{display:none}.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:30px;padding:20px;background:#f8f9fa;border-radius:10px}.control-group{display:flex;flex-direction:column;gap:10px}.control-group label{font-weight:600;margin-bottom:8px;color:#333;font-size:14px}.example-btn-inline{padding:8px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all .3s;align-self:flex-start}.example-btn-inline:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.control-group input,.control-group select{padding:10px;border:2px solid #e0e0e0;border-radius:8px;font-size:14px;transition:border-color .3s}.control-group input:focus,.control-group select:focus{outline:none;border-color:#667eea}.custom-big-image-upload{margin-bottom:30px;padding:20px;background:#f8f9fa;border-radius:10px}.custom-big-image-upload h3{margin-bottom:15px;color:#333;font-size:18px}.custom-upload-area{border:3px dashed #667eea;border-radius:15px;padding:30px 20px;text-align:center;cursor:pointer;transition:all .3s;background:#f8f9ff;min-height:200px;display:flex;align-items:center;justify-content:center}.custom-upload-area:hover{border-color:#764ba2;background:#f0f1ff}.custom-upload-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center}.upload-icon-small{font-size:64px;margin-bottom:15px}.upload-text-small{font-size:16px;color:#667eea;font-weight:600}.custom-image-preview{position:relative;width:100%;max-width:400px}.custom-preview-img{width:100%;height:auto;display:block;border-radius:10px}.remove-custom-btn{margin-top:10px;background:#f44;color:#fff;border:none;border-radius:8px;padding:8px 16px;cursor:pointer;font-size:14px;font-weight:600;transition:all .3s}.remove-custom-btn:hover{background:#c00;transform:translateY(-2px)}.custom-upload-tip{margin-top:10px;font-size:12px;color:#666;text-align:center}.grid-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;background-repeat:no-repeat}.change-image-hint{position:absolute;bottom:20px;left:50%;transform:translate(-50%);background:#000000b3;color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;font-weight:500;opacity:0;transition:opacity .3s;pointer-events:none}.info-box{background:#e7f3ff;border-left:4px solid #2196f3;padding:15px;margin-bottom:20px;border-radius:5px;display:none}.info-box.active{display:block}.info-box p{margin:5px 0;color:#333}.upload-config{background:#fff3cd;border-left-color:#ffc107}.btn-config{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.btn-config:hover{transform:translateY(-2px);box-shadow:0 5px 15px #f093fb66}.config-dialog-overlay{position:fixed;inset:0;width:100%;height:100%;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:9999;padding:20px;overflow:auto}.config-dialog{background:#fff;border-radius:15px;max-width:600px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 20px 60px #0000004d;animation:slideIn .3s ease-out;position:relative;z-index:10000}@keyframes slideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.config-dialog-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:2px solid #f0f0f0}.config-dialog-header h3{margin:0;color:#333;font-size:20px}.close-btn{background:none;border:none;font-size:24px;color:#999;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .3s}.close-btn:hover{background:#f0f0f0;color:#333}.config-dialog-body{padding:20px}.config-dialog-footer{display:flex;gap:10px;justify-content:flex-end;padding:20px;border-top:2px solid #f0f0f0}.required{color:#f5576c}.json-parse-section{margin-bottom:20px}.json-parse-section h4{margin:0 0 10px;color:#333;font-size:16px}.json-tip{margin:0 0 15px;font-size:13px;color:#666}.json-input-group{margin-bottom:15px}.json-input-group label{display:block;margin-bottom:5px;font-size:13px;color:#555;font-weight:500}.json-input-group textarea{width:100%;padding:10px;border:2px solid #e0e0e0;border-radius:6px;font-size:13px;font-family:Courier New,monospace;resize:vertical;transition:border-color .3s}.json-input-group textarea:focus{outline:none;border-color:#667eea}.btn-parse{width:100%;padding:10px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s}.btn-parse:hover{transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.parse-error{margin-top:10px;padding:10px;background:#fff3cd;border-left:4px solid #ffc107;color:#856404;font-size:13px;border-radius:4px}.divider{height:2px;background:linear-gradient(90deg,transparent 0%,#e0e0e0 50%,transparent 100%);margin:25px 0}.upload-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px;margin-top:10px}.upload-field{display:flex;flex-direction:column;gap:6px}.upload-field label{font-size:12px;color:#666}.upload-field input{width:100%;padding:5px;border:1px solid #ddd;border-radius:4px;font-size:14px}.upload-tip{margin-top:10px;font-size:12px;color:#856404}.example-dialog-overlay{position:fixed;inset:0;width:100%;height:100%;background:#000c;display:flex;align-items:center;justify-content:center;z-index:9999;padding:20px;animation:fadeIn .3s ease-out;overflow:auto}.example-dialog{position:relative;max-width:95vw;max-height:95vh;background:#fff;border-radius:15px;padding:15px;box-shadow:0 20px 60px #00000080;animation:slideIn .3s ease-out;display:flex;align-items:center;justify-content:center;z-index:10000}.example-dialog .close-btn{position:absolute;top:10px;right:10px;z-index:1;background:#ffffffe6}.example-dialog .close-btn:hover{background:#fff}.example-image{max-width:100%;max-height:calc(95vh - 30px);width:auto;height:auto;display:block;border-radius:10px;object-fit:contain}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.button-group{display:flex;gap:15px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}button{padding:12px 30px;font-size:16px;border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .3s;display:inline-flex;align-items:center;gap:8px}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.btn-primary.upload{background:linear-gradient(135deg,#f093fb,#f5576c)}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover{background:#5a6268;transform:translateY(-2px)}.btn-success{background:#28a745;color:#fff}.btn-success:hover{background:#218838;transform:translateY(-2px)}button:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.progress-bar{display:none;width:100%;height:30px;background:#e0e0e0;border-radius:15px;overflow:hidden;margin:20px 0;position:relative}.progress-bar.active{display:block}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);width:0%;transition:width .3s}.progress-label{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:14px;text-shadow:0 1px 3px rgba(0,0,0,.3);pointer-events:none}@media(max-width:768px){.container{padding:20px}h1{font-size:24px;gap:8px}.title-icon{width:32px;height:32px;border-radius:6px}.announcement{flex-direction:column;text-align:center;padding:15px}.announcement-icon{font-size:28px}.announcement-content p{font-size:14px}.join-group-btn{padding:8px 20px;font-size:13px}.controls{grid-template-columns:1fr}.button-group{flex-direction:column}.upload-area{padding:40px 15px}.upload-area.has-image{padding:5px;max-height:70vh;overflow:auto}.upload-preview-image{border-radius:8px;max-height:65vh;width:auto;max-width:100%;height:auto}.upload-preview-container{width:100%;max-width:100%;display:flex;justify-content:center;align-items:center}.change-image-hint{font-size:12px;padding:6px 12px;bottom:10px}.progress-label{font-size:12px}.example-btn-inline{font-size:12px;padding:6px 12px}.example-dialog{max-width:100vw;max-height:98vh;padding:5px;border-radius:10px}.example-dialog .close-btn{width:40px;height:40px;font-size:22px;top:5px;right:5px}.example-image{max-width:100%;max-height:calc(98vh - 10px);width:auto;height:auto}.example-dialog-overlay{padding:5px}}