body {
            font-family: 'Poppins', sans-serif;
            color: #333;
        }
        .container {
            display: flex;
            flex-wrap: wrap;
            margin: 0 auto;
            max-width: 1470px;
        }

        .text-side,
        .tally-embed {
            padding: 30px;
            font-size: 16px;
            line-height: 1.6;
            background-color: #fff;
            border: 1px solid #eaeaea;
            box-sizing: border-box;
            margin: 20px;
        }

        .text-side h1 {
            font-size: 28px;
            color: #1D57A5;
            margin-bottom: 30px;
            font-weight: 600;
        }

        .email-category {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eaeaea;
        }

        .email-category:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }

        .email-category strong {
            display: block;
            font-size: 18px;
            color: #1D57A5;
            margin-bottom: 10px;
            font-weight: 600;
        }

        /* 修改链接颜色 */
        .email-address a {
            color: #1D57A5;
            text-decoration: none;
            font-weight: 400;
        }

        .email-address a:hover {
            text-decoration: underline;
        }

        .response-time {
            font-style: normal;
            font-size: 14px;
            margin-top: 30px;
            color: #666666;
        }

        .contact-us {
            font-size: 18px;
            font-weight: 500;
            color: #1D57A5;
            margin-top: 30px;
        }

        @media (min-width: 768px) {
            .text-side,
            .tally-embed {
                flex: 1;
                max-width: 70%;
                margin: 20px auto;
            }
            /* 加大电脑端标题字号 */
            .text-side h1 {
                font-size: 32px;
            }
            /* 加大电脑端副标题字号 */
            .email-category strong {
                font-size: 20px;
            }
            /* 电脑端将 contact-us 字号设置为与副标题一致 */
           .contact-us {
                font-size: 20px;
            }
        }

        @media (min-width: 768px) and (max-width: 1024px) {
            /* iPad 端给 .container 添加上下边距 */
           .container {
                margin-top: 40px;
                margin-bottom: 40px;
            }
        }

        @media (max-width: 767px) {
            .text-side,
            .tally-embed {
                width: 100%;
                padding: 20px;
                border: none;
                margin: 20px 0;
            }
            /* 进一步缩小手机端 text-side 底部外边距和内边距 */
            .text-side {
                margin-bottom: 0;
                padding-bottom: 10px;
            }
            /* 缩小 contact-us 的底部外边距 */
           .contact-us {
                margin-bottom: 5px;
            }
            /* 修改手机端正文字号为 14px */
           .text-side p,
           .response-time {
                font-size: 14px;
            }
        }