.banner .desc{
    top: 30%;
    /* color: #1E1E1E */
}

.section-title{
    margin-top: 35px;
    font-size: 36px;
    color: #222;
    font-weight: 500;
    text-align: center;
    line-height: 100px;
}

.form{

}
.form .item{
    flex: 1;
    border: 2px solid #D9D9D9;
    font-size: 32px;
    padding: 14px 38px;
}
.form .row1{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}
.form .row1 .item{
    height: 92px;
}
.form .row2{
    margin-top: 24px;
}
.form .row2 .item{
    width: 100%;
    height: 300px;
    line-height: 44px;
    resize: none;
}
.form .btn{
    width: 220px;
    height: 48px;
    margin: 42px auto 0;
    background: #2874CC;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
}


/* 小于等于768px 的设备使用 rem 缩放布局 */
@media screen and (max-width: 768px) {
    .section-title{
        font-size: 1.6rem;
        font-weight: 600;
        line-height: 4.8rem;
        margin-top: 0.4rem;
    }
    .form .row1{
        flex-direction: column;
        gap: 2rem;
    }
    .form .item {
        padding: 1.5rem 1.6rem;
        width: 100%;
        font-size: 1.4rem;
    }
    .form .row1 .item{
        height: 5rem;
    }
    .form .row2 .item{
        height: 25.6rem;
        line-height: 2.4rem;
    }
     .form .btn{
        width: 100%;
        height: 4.8rem;
        font-size: 1.8rem;
     }
}