/* 样式设置 */
.pd8 {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.sjTit {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}

.mesform {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
}

.mesform li {
    list-style: none;
    flex-basis: calc(50% - 10px); /* 每行2个输入框 */
    box-sizing: border-box;
}

.mesform li.mestext {
    flex-basis: 100%; /* 文本域占据整行 */
}

.mesform input[type="text"], 
.mesform textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
}

.mesform textarea {
    height: 150px;
    resize: none;
}

.btn_submit {
    text-align: center;
    margin-top: 20px;
}

.btn_submit input[type="submit"] {
    background-color: #0056b3;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    display: inline-block;
    position: relative;
}

.btn_submit i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: solid white;
    border-width: 0 2px 2px 0;
    display: inline-block;
    padding: 3px;
    transform: rotate(45deg);
    margin-left: 10px;
}

.btn_submit input[type="submit"]:hover {
    background-color: #004494;
}