/*
 * @Author: fuy
 * @Date: 2020-06-22 10:57:52
 * @LastEditTime: 2020-06-23 13:45:27
 * @LastEditors: fuy
 * @Description: 研发中心
 * @FilePath: /lihua/css/rad-center.css
 */

 body {
    background: #f9f9f9;
}

/* common */
.common-div {
    width: 100%;
    height: 60px;
    border-bottom: 1px solid #dcdcdc;
}

.common-title {
    display: inline-block;
    font-size: 30px;
    height: 58px;
    line-height: 50px;
    border-bottom: 5px solid #0082d6;
}

.common-sub-title {
    display: inline-block;
    letter-spacing: .2em;
    color: #c9c9c9;
    margin-left: 5px;
    position: relative;
    top: 5px;
}

.common-more {
    float: right;
    line-height: 60px;
}

.common-more a {
    font-size: 14px;
    color: #676767;
}

/* common end */

/* poster */
.poster {
    width: 100%;
    height: 300px;
    background: url(../images/poster-04.png) no-repeat center;
    background-size: cover;
    /* 此处加上-ms前缀，让IE识别 */
    -ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='../images/poster-04.png',sizingMethod='scale')";
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='../images/poster-04.png',sizingMethod='scale');
    /* \9 是 IE的CSS hack,IE9以下识别，不包括IE 9 */
    background: none\9;
    position: relative;
    z-index: 1;
}
/* poster end */

/* notice */
.notice {
    background: url(../images/bg-01.png) no-repeat;
    width: 1138px;
    height: 132px;
    line-height: 117px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    top: -47px;
}

.notice-title {
    color: #0082d6;
    font-size: 20px;
    position: absolute;
    left: 90px;
}

.notice-div {
    margin-left: 320px;
}

.notice-ul li {
    width: 700px;
    font-size: 16px;
    color: #676767;
    list-style: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.notice-btn-l {
    width: 17px;
    height: 20px;
    background: url(../images/ic-btn-l.png) no-repeat 100% 100%;
    position: absolute;
    top: 50px;
    right: 70px;
    cursor: pointer;
}

.notice-btn-r {
    width: 17px;
    height: 20px;
    background: url(../images/ic-btn-r.png) no-repeat 100% 100%;
    position: absolute;
    top: 50px;
    right: 40px;
    cursor: pointer;
}
/* notice end */
/* box-4 */
.box-4 {
    width: 100%;
    height: 555px;
    padding-top: 45px;
}

.box-4-list {
    width: 100%;
    height: 482px;
    margin-top: 47px;
}

.box-4-list ul li {
    width: 275px;
    height: 275px;
    float: left;
    list-style: none;
    position: relative;
}

.box-4-list ul li img {
    width: 100%;
    height: 100%;
}

.box-4-list-mask {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    width: 275px;
    height: 275px;
    background: #000000;
    filter: alpha(opacity=60);
    opacity: .6;
    /* display: none; */
}

.box-4-list-mask-txt {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 3;
    width: 275px;
    height: 275px;
    line-height: 167px;
    text-align: center;
    color: #ffffff;
    font-size: 24px;
}

.box-4-list-mask-img {
    position: absolute;
    bottom: 61px;
    left: 100px;
    z-index: 3;
    width: 75px;
    height: 112px;
    background: url(../images/ic-03.png) no-repeat 100% 100%;
    display: none;
}

.box-4-list ul li:hover .box-4-list-mask {
    background: #0278c4;
    filter: alpha(opacity=80);
    opacity: .8;
}

.box-4-list ul li:hover .box-4-list-mask-img {
    display: block;
}
/* box-4 end */