/* 按钮区域 */
        .btn-container {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin-top: 20px;
        }
        
        .btn {
            padding: 12px 30px;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .btn-buzheng {
            background: #4a90d9;
            color: #fff;
        }
        
        .btn-buzheng:hover {
            background: #357abd;
        }
        
        .btn-withdraw {
            background: #d9534f;
            color: #fff;
        }
        
        .btn-withdraw:hover {
            background: #c9302c;
        }
        
        .btn-hidden {
            display: none;
        }
        
        /* 弹窗样式 */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal {
            background: #fff;
            border-radius: 10px;
            width: 100%;
            max-width: 500px;
            max-height: 90vh;
            overflow-y: auto;
            left: 0;
    right: 0;
    margin: auto;
        }
        
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px;
            border-bottom: 1px solid #eee;
        }
        
        .modal-title {
            font-size: 18px;
            font-weight: bold;
            color: #333;
        }
        
        .modal-close {
            font-size: 24px;
            color: #999;
            cursor: pointer;
            line-height: 1;
        }
        
        .modal-close:hover {
            color: #333;
        }
        
        .modal-body {
            padding: 20px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
        }
        
        .form-textarea {
            width: 95%;
            min-height: 120px;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 14px;
            font-family: inherit;
            resize: vertical;
        }
        
        .form-textarea:focus {
            outline: none;
            border-color: #4a90d9;
        }
        
        .form-input {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 14px;
            font-family: inherit;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #4a90d9;
        }
        
        .form-file {
            width: 100%;
            padding: 12px;
            border: 1px dashed #ddd;
            border-radius: 6px;
            cursor: pointer;
        }
        
        .file-preview {
            margin-top: 10px;
        }
        
        .file-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            background: #f9f9f9;
            border-radius: 4px;
        }
        
        .file-name {
            flex: 1;
            color: #333;
        }
        
        .file-size {
            color: #999;
            font-size: 12px;
        }
        
        .modal-footer {
            padding: 20px;
            border-top: 1px solid #eee;
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }
        
        .btn-submit {
            padding: 10px 30px;
            background: #4a90d9;
            color: #fff;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            cursor: pointer;
        }
        
        .btn-submit:hover {
            background: #357abd;
        }
        
        .btn-cancel {
            padding: 10px 30px;
            background: #fff;
            color: #666;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 14px;
            cursor: pointer;
        }
        
        .btn-cancel:hover {
            background: #f5f5f5;
        }