.supervise-head {
    position: relative;
    width: 7.5rem;
    height: 3rem;
    margin-bottom: 1rem;
    background: url(/static/m/img/supervise_head.png);
    background-size: 100%;
    font-size: .3rem;
}

.supervise-head-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    position: absolute;
    width: 6.97rem;
    height: 1rem;
    margin: 0 auto;
    left: 0;
    right: 0;
    bottom: -.5rem;
    background: #fff;
    color: #333;
    box-shadow: 0 7px 30px #ececec;
    white-space: nowrap;
}
.supervise-head-nav a {
    display: inline-block;
    position: relative;
    margin: 0 .2rem;
    font-size: .27rem;
    text-align: center;
    color: #999;
}
.supervise-head-nav .active {
    font-weight: bold;
    color: #000;
}
.supervise-head-nav .active::after {
    position: absolute;
    content: '';
    left: 0;
    right: 0;
    bottom: -.2rem;
    margin: auto;
    width: .5rem;
    height: .08rem;
    background: #00b2ff;
}
.title{
    position: relative;
    font-size: .35rem;
    font-weight: bold;
    text-align: center;
}
.title::before {
    position: absolute;
    content: '';
    width: 1.5rem;
    height: 2px;
    left: .5rem;
    top: 0;
    bottom: 0;
    margin: auto;
    background: #e6e6e6;
}
.title::after {
    position: absolute;
    content: '';
    width: 1.5rem;
    height: 2px;
    right: .5rem;
    top: 0;
    bottom: 0;
    margin: auto;
    background: #e6e6e6;
}
.engineer-box sub {
    display: block;
    font-size: .25rem;
    color: #999;
    text-align: center;
}
.content-box {
    margin-top: .5rem;
    padding: .2rem .3rem;
    background: #fff;
}
.content {
    color: #999;
    font-size: .25rem;
    line-height: .45rem;
}
.content h2 {
    line-height: .6rem;
    color: #000;
    font-size: .3rem;
    font-weight: bold;
}
.content section {
    margin-bottom: .3rem;
}
.content .blue {
    color: #00b2ff;
}
.engineer-box .download-box {
    display: block;
    position: relative;
    width: 6.9rem;
    height: 1.62rem;
    margin: 0 auto;
    padding: .25rem 1.5rem .24rem 1rem; 
    border: 1px solid #f4f4f4;
    font-size: .2rem;
    white-space: nowrap;
}
.engineer-box  .download-box .logo-folder {
    position: absolute;
    width: .43rem;
    height: .4rem;
    left: .26rem;
    top: .4rem;
    background-position: 69.697% 26.429%;
}
.engineer-box .download-box .logo-download {
    position: absolute;
    width: .87rem;
    height: .88rem;
    right: .26rem;
    top: .4rem;
    background-position:  90.033% 54.839%;
}
.engineer-box .download-box h3 {
    line-height: .5rem;
    font-size: .3rem;
    font-weight: bold;
}
.engineer-box .download-box p {
    line-height: .35rem;
    color: #999;
}
.phone-box {
    position: relative;
    width: 6.9rem;
    height: 1rem;
    margin: .2rem auto;
    padding: .33rem 0 .33rem 1rem; 
    border: 1px solid #f4f4f4;
    font-size: .3rem;
    font-weight: bold;
    white-space: nowrap;
}
.phone-box span{
    color: #00b2ff;
}
.phone-box .logo-phone {
    position: absolute;
    width: .44rem;
    height: .44rem;
    left: .26rem;
    top: .4rem;
    background-position: 27.092% 85.096%;
}

.apply-box .process-img {
    width: 6.9rem;
    height: 1.97rem;
    border: 1px solid #eee;
    text-align: center;
}
.apply-box .process-img img{
    width: 6.62rem;
}

.apply-box .download-box {
    display: block;
    position: relative;
    width: 6.9rem;
    height: 1.3rem;
    line-height: 1.3rem;
    margin: 0 auto;
    padding: .0 1.5rem 0 1rem; 
    border: 1px solid #ddd;
    font-size: .2rem;
    white-space: nowrap;
}
.apply-box  .download-box .logo-folder {
    position: absolute;
    width: .43rem;
    height: .4rem;
    left: .26rem;
    top: 0;
    bottom: 0;
    margin: auto;
    background-position: 69.697% 26.429%;
}
.apply-box .download-box .logo-download {
    position: absolute;
    width: .87rem;
    height: .88rem;
    right: .26rem;
    top: 0;
    bottom: 0;
    margin: auto;
    background-position:  90.033% 54.839%;
}
.apply-box .download-box h3 {
    color: #000;
    font-size: .3rem;
    font-weight: bold;
}

.img-mask {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.8);
    overflow: auto;
    z-index: 999;
}
.img-mask img {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translate(0,-50%);
}