/* 頁面專用樣式 */
        .page-header {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 3rem 0;
            margin-bottom: 3rem;
            border-radius: 0 0 50px 50px;
        }
        
        .message-form {
            background: white;
            border-radius: 20px;
            padding: 2.5rem;
            margin-bottom: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        
        .form-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        
        .form-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            border-radius: 2px;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-control {
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 0.8rem 1.2rem;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }
        
        .form-control.is-invalid {
            border-color: #dc3545;
        }
        
        .submit-btn {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 1rem 2.5rem;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }
        
        .submit-btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }
        
        .message-list {
            margin-top: 2rem;
        }
        
        .message-card {
            background: white;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.03);
            transition: all 0.3s ease;
        }
        
        .message-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.1);
        }
        
        .message-header {
            display: flex;
            align-items: center;
            margin-bottom: 1rem;
        }
        
        .message-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 600;
            margin-right: 1rem;
        }
        
        .message-info {
            flex: 1;
        }
        
        .message-name {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 0.2rem;
        }
        
        .message-meta {
            font-size: 0.85rem;
            color: #6c757d;
        }
        
        .message-meta i {
            margin-right: 0.3rem;
        }
        
        .message-content {
            font-size: 1rem;
            line-height: 1.8;
            color: #4a5568;
            margin-top: 0.5rem;
            padding-left: 0.5rem;
            border-left: 3px solid #e9ecef;
            padding-left: 1rem;
        }
        
        .empty-message {
            text-align: center;
            padding: 3rem;
            color: #6c757d;
            background: #f8f9fa;
            border-radius: 20px;
        }
        
        .empty-message i {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.3;
        }
        
        .stat-badge {
            display: inline-block;
            background: #f8f9fa;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            color: #4a5568;
            font-size: 0.95rem;
        }
        
        .stat-badge i {
            color: #667eea;
            margin-right: 0.3rem;
        }
        
        .load-more {
            text-align: center;
            margin-top: 2rem;
        }
        
        .load-more-btn {
            background: white;
            border: 2px solid #667eea;
            color: #667eea;
            border-radius: 50px;
            padding: 0.8rem 2rem;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .load-more-btn:hover {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
        }
        
        /* 彈窗樣式 */
        .modal-custom {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 9999;
            align-items: center;
            justify-content: center;
        }
        
        .modal-custom.show {
            display: flex;
        }
        
        .modal-content-custom {
            background: white;
            border-radius: 20px;
            padding: 2.5rem;
            max-width: 400px;
            width: 90%;
            text-align: center;
            animation: modalFadeIn 0.3s ease;
        }
        
        @keyframes modalFadeIn {
            from {
                transform: translateY(-30px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }
        
        .modal-icon {
            font-size: 4rem;
            color: #28a745;
            margin-bottom: 1rem;
        }
        
        .modal-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 1rem;
        }
        
        .modal-text {
            color: #4a5568;
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        
        .modal-btn {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 0.8rem 2.5rem;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .modal-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
        }
        
        @media (max-width: 768px) {
            .message-form {
                padding: 1.5rem;
            }
            
            .message-card {
                padding: 1.2rem;
            }
        }