/* 按钮容器 - 居右排列 */
        .login-container {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }
        
        /* 已登录状态容器 */
        .logged-container {
            display: none;
            justify-content: flex-end;
            gap: 10px;
            align-items: center;
        }
        
        /* 按钮样式 */
        .btn {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            text-decoration: none;
            font-weight: 500;
            font-size: 12px;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
        }
        
        .login-btn {
            background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
            color: white;
        }
        
        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
        }
        
        .register-btn {
            background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
            color: white;
        }
        
        .register-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
        }
        
        .member-center-btn {
            background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
            color: white;
        }
        
        .member-center-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(46, 204, 113, 0.3);
        }
        
        .logout-btn {
            background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
            color: white;
        }
        
        .logout-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
        }
        
        .btn i {
            font-size: 14px;
        }
        
        /* 用户信息样式 */
        .user-info {
            display: flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
            color: white;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(155, 89, 182, 0.3);
        }
        
        .user-info i {
            font-size: 16px;
        }
        
        .user-name {
            font-weight: 700;
            color: #fff;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }
        
        /* 模态框样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background-color: white;
            border-radius: 12px;
            width: 90%;
            max-width: 380px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            animation: modalShow 0.3s ease;
        }
        
        @keyframes modalShow {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .modal-header {
            background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
            color: white;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-header h3 {
            font-size: 18px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .close-btn {
            background: none;
            border: none;
            color: white;
            font-size: 22px;
            cursor: pointer;
            transition: transform 0.2s;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .close-btn:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: scale(1.1);
        }
        
        .modal-body {
            padding: 25px;
        }
        
        /* 表单样式 */
        .form-group {
            margin-bottom: 18px;
            position: relative;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #555;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .form-group label i {
            color: #3498db;
            width: 16px;
            text-align: center;
        }
        
        .form-control {
            width: 100%;
            padding: 12px 15px 12px 40px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 14px;
            transition: all 0.3s;
            background-color: #f9f9f9;
        }
        
        .form-control:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
            background-color: white;
        }
        
        .form-control-icon {
            position: absolute;
            left: 15px;
            top: 39px;
            color: #777;
        }
        
        .verify-group {
            display: flex;
            gap: 10px;
        }
        
        .verify-group input {
            flex: 1;
            padding-left: 40px;
        }
        
        .verify-img {
            height: 44px;
            border: 1px solid #ddd;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .verify-img:hover {
            transform: scale(1.05);
        }
        
        .submit-btn {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            margin-top: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(52, 152, 219, 0.3);
        }
        
        .submit-btn:active {
            transform: translateY(0);
        }
        
        /* 消息提示 */
        .message {
            margin-top: 15px;
            padding: 12px;
            border-radius: 6px;
            text-align: center;
            font-size: 13px;
            display: none;
        }
        
        .message.success {
            background-color: #e7f7ed;
            color: #2e7d32;
            border: 1px solid #c8e6c9;
        }
        
        .message.error {
            background-color: #ffebee;
            color: #c62828;
            border: 1px solid #ffcdd2;
        }
        
        /* QQ登录样式 */
        .qq-login {
            margin-top: 20px;
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }
        
        .qq-login p {
            font-size: 13px;
            color: #777;
            margin-bottom: 12px;
        }
        
        .qq-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: #12b7f5;
            color: white;
            padding: 10px 20px;
            border-radius: 8px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s;
        }
        
        .qq-btn:hover {
            background-color: #0f9bd7;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(18, 183, 245, 0.3);
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .logged-container {
                flex-direction: column;
                align-items: flex-end;
                gap: 8px;
            }
            
            .user-info {
                order: 1;
            }
            
            .member-center-btn, .logout-btn {
                order: 2;
            }
        }
        
        @media (max-width: 480px) {
            body {
                justify-content: center;
            }
            
            .login-container, .logged-container {
                justify-content: center;
            }
            
            .modal-content {
                width: 95%;
            }
            
            .verify-group {
                flex-direction: column;
            }
            
            .verify-img {
                align-self: flex-start;
            }
            
            .logged-container {
                align-items: center;
            }
        }