.contact-title{
    font-size: 2rem;
    text-align: center;
    margin-top: 15px;
}
.main-content{
    width: 70%;
    margin: 0 auto;
}
.contact-content2{
    font-size: 1rem;
    font-weight: bold;
    color: #333;
    margin-top: 10px;
}

.input-box {
    width: 320px;
    height: 60px;
    padding: 10px 14px;
    font-size: 14px;
    color: #333;
    border-radius: 100px;
    border: 1px solid #dcdcdc;
    outline: none;
    box-sizing: border-box;
}

.contact-form {
    display: flex;
    gap: 20px;               /* 左右间距 */
    max-width: 800px;
    margin: 50px auto;
}

.left, .right {
    display: flex;
    flex-direction: column;
}

.left button {
    width: 320px;
    height: 40px;
    padding: 10px;
    border: none;
    background-color: #000;
    color: #fff;
    cursor: pointer;
    border-radius: 4px;
}

.textarea-box {
    float: right;
    width: 500px;
    min-height: 230px;
    padding: 12px 14px;
    font-size: 14px;
    color: #333;
    border: 1px solid #dcdcdc;
    border-radius: 8px;
    resize: vertical;
    outline: none;
}