* {
    margin: 0;
    padding: 0;
}
main {
    height: 100vh;
    background: url("img/background1.png") no-repeat fixed center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}

/* 黑色半透明层 */
.black_background {
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

/* 导航栏 */
header {
    width: 100%;
    height: 60px;
}
.logo {
    height: 50px;
    margin: 5px 15px;
}
ul {
    float: right;
    height: 60px;
    margin: 0 30px;
}
li {
    float: left;
    width: 90px;
    height: 60px;
    line-height: 60px;
    margin: 0 5px;
    list-style-type: none;
    text-align: center;
    cursor: pointer;
    color: #ecb745;
    font-size: 15px;
}
header a {
    display: block;
    text-decoration: none;
    font-weight: bold;
}
header a:link, header a:visited {
    color: #ecb745;
    text-decoration: none;
}
header a:hover, header a:active {
    background-color: rgba(255, 255, 255, 0.2);
    border-bottom: 2px solid #ecb745;
}

/* 首页banner图 */
.banner {
    text-align: center;
    height: 50%;
    width: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
#logo2 {
    height: 300px;
    margin-bottom: 50px;
}
.banner p {
    color: #dddddd;
    font-size: 25px;
    letter-spacing: 1px;
}

/* 介绍图文 */
.div_img_text {
    width: 1200px;
    height: 327px;
    margin: 80px auto 0;
}
.div_text {
    height: 327px;
    width: 300px;
    padding: 0 75px;
    float: left;
    font-size: 18px;
}
.title_text {
    color: #ecb745;
    font-size: 25px;
    font-weight: bold;
    margin: 80px 0 10px;
}
#img1 {
    height: 327px;
    width: 645px;
    float: left;
    background: url("img/img1.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
#img2 {
    height: 327px;
    width: 645px;
    float: right;
    background: url("img/img2.png") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
#img3 {
    height: 327px;
    width: 645px;
    float: left;
    background: url("img/img3.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
#img4 {
    height: 327px;
    width: 645px;
    float: right;
    background: url("img/img4.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}

/* 标题样式 */
.title_text2 {
    width: 1200px;
    height: 100px;
    margin: 100px auto 0;
}
.text2 {
    width: 200px;
    float: left;
    font-size: 24px;
    font-weight: bold;
}
.title_text2 a{
    float: right;
    color: #888888;
}
.color_div {
    width: 200px;
    height: 18px;
    background-color: #ecb745;
    position: relative;
    top: 20px;
    left: -10px;
    z-index: -1;
}

/* 热点文章 */
.myarticles {
    width: 1200px;
    height: 440px;
    margin: 0 auto;
}
.myarticle {
    width: 270px;
    height: 220px;
    float: left;
    margin: 0 15px;
    text-align: justify;
}
.myarticle a {
    color: #444444;
    word-break: normal;
    text-decoration: none;
}
.myarticle_img1 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article1.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img2 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article2.png") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img3 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article3.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img4 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article4.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img5 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article5.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img6 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article6.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img7 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article7.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}
.myarticle_img8 {
    width: 270px;
    height: 150px;
    margin-bottom: 5px;
    background: url("img/article8.jpg") no-repeat center;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
}

.jobs_div {
    width: 1200px;
    height: 150px;
    margin: 0 auto;
}
.jobs {
    width: 400px;
    float: left;
    text-align: center;
}
.jobs p{
    margin-bottom: 10px;
}

.client_div {
    width: 1200px;
    height: 380px;
    margin: 0 auto;
}
.client {
    width: 208px;
    height: 80px;
    margin: 0 15px 15px;
    border: 1px solid #eeeeee;
    float: left;
}

#client_1 {
    background: url(img/client1.png) no-repeat center;
    background-size: contain;
}
#client_2 {
    background: url(img/client2.png) no-repeat center;
    background-size: 140px;
}
#client_3 {
    background: url(img/client3.jpg) no-repeat center;
    background-size: contain;
}
#client_4 {
    background: url(img/client4.png) no-repeat center;
    background-size: 160px;
}
#client_5 {
    background: url(img/client5.png) no-repeat center;
    background-size: 80px;
}
#client_6 {
    background: url(img/client6.png) no-repeat center;
    background-size: contain;
}
#client_7 {
    background: url(img/client7.jpg) no-repeat center;
    background-size: contain;
}
#client_8 {
    background: url(img/client8.png) no-repeat center;
    background-size: 140px;
}
#client_9 {
    background: url(img/client9.png) no-repeat center;
    background-size: 120px;
}
#client_10 {
    background: url(img/client10.png) no-repeat center;
    background-size: 160px;
}
#client_11 {
    background: url(img/client11.jpg) no-repeat center;
    background-size: contain;
}
#client_12 {
    background: url(img/client12.jpg) no-repeat center;
    background-size: contain;
}
#client_13 {
    background: url(img/client13.jpg) no-repeat center;
    background-size: 160px;
}

footer {
    width: 100%;
    height: 300px;
    background-color: #333333;
}
.footer_left_div {
    width: 600px;
    height: 200px;
    margin: 50px;
    float: left;
}

.footer_logo {
    height: 60px;
}
.footer_link_div {
    width: 300px;
    height: 50px;
    margin: 30px 0;
}
.linkedin_link {
    display: block;
    width: 50px;
    height: 50px;
    margin-right: 30px;
    background: url("img/领英.png") center no-repeat;
    background-size: 50px 50px;
    float: left;
}
.zhihu_link {
    display: block;
    width: 50px;
    height: 50px;
    background: url("img/知乎.png") center no-repeat;
    background-size: 50px 50px;
    float: left;
}
.footer_left_div p{
    clear: left;
    color: white;
    font-size: 15px;
}
.footer_right_div {
    width: 200px;
    height: 200px;
    margin: 50px;
    float: right;
    text-align: center;
}
.QRcode {
    width: 180px;
    height: 180px;
    margin-bottom: 10px;
}
.footer_right_div p{
    color: white;
    font-size: 15px;
}