.section {
    width: 90%;
    margin: 0 auto 100px;
    overflow:hidden
}
.navbar-nav>li>.dropdown-menu {
    background-color: rgba(0, 0, 0, .5)
}
.pageHeader {
    position: static;
}
.navbar-default {
    height: 98px;
    background: #000;
    position: static;
}

.project-item {
   height: auto;
    margin-bottom: 36px;
}
.project-item img {
    width: 100%;
}
.project-item .desc {
    padding-top: 20px;
    color: #333;
    font-size: 22px;
}
.project-item .desc .name{
      overflow: hidden;/*超出部分隐藏*/
            white-space: nowrap;/*不换行*/
            text-overflow:ellipsis;/*超出部分文字以...显示*/
}
.project-item .desc .sub-name{
    font-size: 18px;
}
.project-item .desc .address {
    line-height: 32px;
color: rgba(51, 51, 51, .5);
font-size: 16px;
  overflow: hidden;/*超出部分隐藏*/
            white-space: nowrap;/*不换行*/
            text-overflow:ellipsis;/*超出部分文字以...显示*/
}
.section-header {
    position: relative;
}
.section-header-filter {
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size:24px;
    color: #333;
    box-sizing: content-box;
    padding: 40px 20px 0;
}
.droup-content {
    position: absolute;
    top: 130px;
    left: 0;
    right: 0;
    min-height: 224px;	height: auto!important;
    z-index: 1000;
    background: #fff;
    font-size: 28px;
    border-top: 1px solid #ddd;
    padding-top: 40px;
    display: none;
}
.droup-content.hide {
    display: none;
}
.droup-content a {
    font-size: 20px;
    color: #333;
    margin-bottom: 30px;
}
.icon-arrow-down {
    background: url(../img/arrow_down.png) no-repeat;
    width: 34px;
    height: 34px;
    display: inline-block;
    vertical-align: -10px;
}
.droup-down.active .icon-arrow-down{
    transform: rotate(180deg);
}
.droup-down {
    display: inline-block;
    cursor: pointer;
    -webkit-user-select:none;

   -moz-user-select:none;

   -ms-user-select:none;

   user-select:none;
}
.droup-down + .droup-down {
    margin-left: 40px;
}

@media screen and (max-width:768px) {
    
    .section {
        width: 100%;
        margin: 15px 0;
    }
    .project-item .desc {
        padding-top: 10px;
    font-size: 16px;
    }
    .project-item .desc .sub-name {
        font-size: 14px;
    }
    .project-item {
        margin-bottom: 20px;
    }
    .section-head {
        padding: 0 15px;
    }
    .section-head .title {
        font-size: 20px;
    }
    .detail-btn {
        line-height: 30px;
        font-size: 12px;
        width: 110px;
        padding: 0 10px;
    }

    .project-item .desc .address {
        line-height: 20px;
        font-size: 14px;
    }
    .navbar-default {
        height: 58px;
    }
    .section-header-filter {
        padding: 0px 20px 0;
    font-size: 18px;
    height: 50px;
    }
    .icon-arrow-down {
        background-size: 100%;
    vertical-align: -5px;
    width: 20px;
    height: 20px;
    }
    .droup-content {
        top: 45px;
        padding-top: 10px;
        font-size: 14px;
    }
    .droup-content a {
        font-size: 14px;
        margin-bottom: 15px;
    }
}