.banner2{ margin:0px auto;height: 720px;margin-top: 100px; background: #000; background-size:auto 100%; background-position: center right ; background-repeat: no-repeat; position: relative;}
.banner3{ margin:0px auto;height: 720px;margin-top: 100px; background: #000; background-size:auto 150%; background-position: 50% 50% ; background-image: url('../img/about.jpg'); background-repeat: no-repeat;background-attachment: fixed;}

.layout .layout-title{padding: 10% 0px 0px 0px; }
.layout .layout-title div{ color:#000; display: inline-box;}


.news-wrapper{margin: -1.6%;padding: 2% 0 5% 0;}
.news-wrapper .list{display: block; width: 30%;  margin: 1.66%; float: left;}
.news-wrapper .list .thumb{width: 100%;padding-top:60%;   background-color: #ccc;  border-radius: 3px;transform:scale(1); transition:all 0.3s linear 0s; position: relative; overflow: hidden;}

.news-wrapper .list .thumb .inner{position: relative; display: block;width: 100%; padding-bottom:60%; overflow: hidden; }
.news-wrapper .list .thumb img{width:100%; display:block; position: absolute;top: 0px}

.news-wrapper .list .info{  }
.news-wrapper .list .info .firstRow{padding: 10% 0px 0px 0px; font-weight: bold; max-height: 60px; overflow: hidden;  text-overflow: ellipsis; white-space: nowrap;}
.news-wrapper .list .info .secondRow{padding: 0px 0px 10% 0px;  overflow: hidden; color: #666 }
.news-wrapper .list .info .thirdRow{margin-top: 10%;  overflow: hidden; }



@media screen and (max-width: 900px) { /*当屏幕尺寸小于500px时，应用下面的CSS样式*/
    .banner2{width:100%;height:150px; background-color:#3496d8; margin-top: 60px;}
    .banner3{width:100%;height:150px; background-color:#3496d8; margin-top: 60px;}
}