.about_banner {
    width: 100%;
    margin: 0 auto;
    position: relative;
}
.about_banner img {
    width: 100%;
    display: block;
}
.about_zmenu, .about2_zmenu, .pro_zmenu, .pro2_zmenu, .about_zmenu6 {
    background: #f5f5f5;
}
.about_zmenu ul {
    height: 50px;
}
.about_zmenu ul li {
    float: left;
}
.about_zmenu ul li h3 {
    float: left;
}
.about_zmenu ul li h3 a {
    font-weight: normal;
    font-size: 16px;
    color: #333;
    padding: 0 60px;
    background: url(../imgs/about_menujt.png) no-repeat right 30px center;
    line-height: 50px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: inline-block;
    text-decoration: none;
}
.about_zmenu ul li h3 a:hover {
    color: #ff0000;
}
.about_zmenu ul .about_zmenu_li1 h3 a {
    background: #e5e5e5 url(../imgs/about_menuhome.png) no-repeat 175px center;
    padding-left: 200px;
    padding-right: 60px;
}

.power_all {
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 50px;
    margin-bottom: 50px;
}
.power_center {
    color: #808080;
}
.power_center h3 {
    font-size: 28px;
    font-weight: bold;
    color: #595959;
}
.power_center .xiaxian {
    display: block;
    width: 100px;
    border: #ff0000 solid 2px;
    margin-top: 8px;
    margin-bottom: 30px;
}
.power_center p {
    /* color: #808080; */
    line-height: 24px;
    /* word-break: break-all; */
    /* word-wrap: break-word; */
    text-align: justify;
    margin-top: 15px;
}
.sur_ul ul {
    margin-top: 30px;
}
.w50.sur_ul ul li {
    float: left;
    margin: 0 30px 30px 0;
    width: 45%;
    text-align: center;
    min-height: 500px;
    max-height: 500px;
}
.sur_ul ul li img {
    display: initial;
    max-width: 100%;
    max-height: 500px;
}