body, html {
    padding: 0;
    margin: 0;
    /*overflow-y: auto;*/
    width: 100vw;

    /*background: url("/img/model/02-2技术咨询.png") no-repeat 0 -94vh;*/
    /*background: url("/img/model/02-2技术咨询.png") top center no-repeat;*/
    /*background: url("/img/model/02-1智能问答.png") top center no-repeat;*/
    background-size: 100% auto;

}

html {
    overflow-y: scroll;
}


.banner_box {
    display: block;
    height: 100vh;
    /*min-height: 50.5rem;*/
    width: 100vw;
    overflow: hidden;
    background: url("/img/service_intellect/bg_fw.png") center bottom no-repeat;
    /*background-size: 100vw 100vh;*/
    background-size: cover;
    position: fixed;
    z-index: 50;

    -webkit-transition: all 0.5s ease-in-out;
    -moz-transition: all 0.5s ease-in-out;
    -o-transition: all 0.5s ease-in-out;
    transition: all 0.5s ease-in-out;
}

.banner_box_show {
    height: 3.6458rem;
    z-index: 10;

    -webkit-transition: all 0.5s ease-in-out;
    -moz-transition: all 0.5s ease-in-out;
    -o-transition: all 0.5s ease-in-out;
    transition: all 0.5s ease-in-out;
}

.banner_box > div, .banner_box > br {
    display: block;
}

.banner_box > div:first-child {
    font-weight: 700;
    font-size: 3.33rem;
    color: #FFFFFF;
    text-align: center;
    width: max-content;
    margin: 20.34rem auto 0 auto;
    padding-bottom: 1.5rem;
    border-bottom: solid 0.41rem #FFFFFF;
}

.banner_box > div:nth-child(2) {
    width: 5rem;
    height: 0.31rem;
    background: #FFFFFF;
    margin: 1.41rem auto 0 auto;
}


.top_tab {
    display: block;
    height: 3.65rem;
    width: 100vw;
    /*overflow: hidden;*/
    border: 0.05rem solid #D9D9D9;
    background: white;
    margin-bottom: 2.97rem;
    position: fixed;
    top: 3.6458rem;
    z-index: 20;
}

.top_tab > div {
    width: 62.5rem;
    height: 3.65rem;
    margin: 0 auto;
}

.top_tab_box {
    display: block;
    float: left;
    width: 50%;
    height: 3.6rem;
    font-size: 0.94rem;
    color: #666666;
    text-align: center;
    line-height: 3.6rem;
    background: white;
    cursor: pointer;
}

.top_tab_box > div:last-child {
    width: 0.31rem;
    height: 0.31rem;
    border-radius: 0.16rem;
    background: #B9B9B9;
    margin: -0.05rem auto 0 auto;
}

.top_tab_box_on {
    color: #076BF2;
}

.top_tab_box_on > div:last-child {
    background: #076BF2;
    box-shadow: 0 0 0.2rem 0.1rem #076BF2;
}

.question_box {
    width: 73.7rem;
    background: #FFFFFF;
    border: 0.05rem solid #EAEAEA;
    /*box-shadow: 0 0.2rem 0.625rem 0 #0000001a;*/
    /*opacity: 0.5;*/
    margin: 0 auto 1.37rem auto;
    border-radius: 0.52rem 0.52rem 0 0;
}

.question_box:hover {
    box-shadow: 0 0.2rem 0.625rem 0 #0000001a;
}

.question_box > div:first-child {
    width: 100%;
    height: 3.9rem;
    background: #F6F6F6;
    border-radius: 0.52rem 0.52rem 0 0;
}

.question_box > div:first-child > img,
.question_box > div:first-child > span,
.question_box > div:last-child > img,
.question_box > div:last-child > span {
    display: block;
    float: left;
}

.question_box > div:first-child > img {
    width: 1.67rem;
    height: 1.67rem;
    margin: 1.3rem 0 0 1.25rem;
}

.question_box > div:first-child > span {
    font-weight: 700;
    font-size: 0.94rem;
    color: #333333;
    line-height: 3.44rem;
    margin: 0.31rem 0 0 0.42rem;
}

.question_box > div:last-child {
    width: 73.7rem;
    background: #FFFFFF;
    border: 0.05rem solid #EAEAEA;
}

.question_box > div:last-child > br {
    clear: left;
}

.question_box > div:last-child > img {
    width: 1.67rem;
    height: 1.67rem;
    margin: 1.69rem 0 0 1.25rem;
}

.question_box > div:last-child > span {
    width: 68.541rem;
    font-size: 0.83rem;
    color: #333333;
    text-align: justify;
    line-height: 1.46rem;
    margin: 1.7rem 0 1.35rem 0.72rem;
}


.from_box {
    display: none;
    width: 73.7rem;
    height: 39.77rem;
    background: #FFFFFF;
    border: 0.05rem solid #EAEAEA;
    box-shadow: 0 0.2rem 0.83rem 0 #0000001a;
    margin: 0 auto 5.2rem auto;
}

.from_box > div {
    width: 100%;
    height: 2.8rem;
    margin: 0 auto 1.14rem auto;
}

.from_box > div > div {
    float: left;
    width: 10.7rem;
    height: 2.4rem;
    line-height: 2.55rem;
    text-align: right;
    color: #666666ff;
    font-size: 0.73rem;
    letter-spacing: 0;
    paragraph-spacing: 0;
    margin-right: 1.2rem;

}

.from_box > div > div > span:first-child {
    color: #F9453D;
}

.from_box > div > div > span > br,
.from_box > div > div > br {
    display: none;
}

.from_box > div > input {
    float: left;
    width: 56.72rem;
    height: 2.4rem;
    background: #FFFFFF;
    border: 0.05rem solid #D9D9D9;
    border-radius: 0.15rem;

    margin: 0;
}

.from_box > div > input:focus, .from_box > div > textarea:focus {
    outline: none;
    border: 0.12rem solid #076BF2;

}

.from_box > div:first-child {
    margin-top: 3.23rem;
}

.from_box > div:nth-child(5) {
    height: 10.42rem;
}

.from_box > div > textarea {
    float: left;
    width: 56.72rem;
    height: 11.22rem;
    background: #FFFFFF;
    border: 0.05rem solid #D9D9D9;
    border-radius: 0.15rem;
    margin: 0;
    resize: none;
}

.from_box > div > br {
    clear: left;
}

.from_box > button {
    display: block;
    width: 22.31rem;
    height: 2.7rem;
    background: #333333;
    border-radius: 0.21rem;
    margin: 3.4rem auto 0 auto;
    font-weight: 700;
    font-size: 0.73rem;
    color: #FFFFFF;
    text-align: center;
    border: none;
}


.top_db {
    width: 100vw;
    height: 10.8rem;
}

.znwd_box {
    display: none;
}

@media screen and (orientation: portrait) {

}