.clearfix::after {
    content: " ";
    display: block;
    clear  : both
}

.main-wrap {
    max-width  : 1920px;
    min-width  : 1200px;
    margin     : 0 auto;
    font-family: MicrosoftYaHeiUI
}

header {
    position: relative
}

header .logo-header {
    position   : absolute;
    top        : 0;
    left       : 50%;
    margin-left: -63px;
    z-index    : 10
}

.welcome {
    height          : 38px;
    line-height     : 38px;
    background-color: #1c1b21
}

.welcome>div {
    float     : left;
    width     : 50%;
    text-align: center
}

.welcome span,
.welcome a {
    font-size: 12px;
    color    : #c0c0c0
}

.welcome .mark {
    margin-left: 25px
}

nav {
    height     : 122px;
    line-height: 122px;
    width      : 1200px;
    margin     : 0 auto
}

nav li {
    float     : left;
    font-size : 16px;
    width     : 15%;
    text-align: center
}

nav li.special {
    margin-right: 10%
}

nav li a {
    color: #333333
}

nav li a.active {
    color: #3156a2;
}

.slideshow {
    width   : 100%;
    overflow: hidden
}

.slideshow .img-list {
    width   : 200%;
    position: relative;
    left    : 0
}

.slideshow .img-list .img-box {
    width   : 50%;
    height  : 100%;
    float   : left;
    overflow: hidden
}

.slideshow .img-list .img-box img {
    position   : relative;
    top        : 0;
    left       : 50%;
    margin-left: -960px
}

.slideshow .dot-list {
    position  : absolute;
    width     : 100%;
    text-align: center;
    left      : 0;
    bottom    : 77px
}

.slideshow .dot-list .dot {
    width        : 22px;
    height       : 22px;
    border       : solid 2px #ffffff;
    border-radius: 50%;
    display      : inline-block;
    margin       : 0 22px;
    cursor       : pointer
}

.slideshow .dot-list .dot.active {
    background-color: #fff
}

footer {
    background-color: #333237;
    padding         : 42px 0
}

footer .content {
    width : 1200px;
    margin: 0 auto
}

footer .content>div {
    float: left
}

footer .content .logo-box {
    width     : 186px;
    margin-top: 45px
}

footer .content .logo-box img {
    width: 115px
}

footer .content .logo-box h4 {
    width     : 115px;
    text-align: center;
    font-size : 16px;
    color     : #fff;
    margin-top: 16px
}

footer .content .line {
    width     : 1px;
    height    : 234px;
    background: #fff;
    background: linear-gradient(#333237, #ababab, #333237)
}

footer .content .contact {
    width      : 939px;
    font-size  : 16px;
    color      : #9d9d9d;
    margin-left: 69px
}

footer .content .contact strong {
    font-size: 16px;
    color    : #ffffff
}

footer .content .contact h4 {
    border-bottom : 1px solid #27262a;
    padding-bottom: 19px;
    margin-top    : 22px
}

footer .content .contact h4 strong {
    margin-right: 12px
}

footer .content .contact .detail {
    border-top : 1px solid #414044;
    padding-top: 15px;
    line-height: 38px
}

footer .content .contact .detail>div {
    float: left
}

footer .content .contact .detail .first {
    margin-right: 84px
}

main .content {
    width : 1200px;
    margin: 0 auto
}

main .content .title-wrap {
    padding      : 70px 0 40px 420px;
    border-bottom: 1px dashed #3059a2
}

main .content .title-wrap h2 {
    font-size  : 32px;
    color      : #000000;
    font-weight: bold
}

main .content .title-wrap .title * {
    float: left
}

main .content .title-wrap .title h2 {
    margin-top: 10px
}

main .content .title-wrap .dot {
    width        : 10px;
    height       : 10px;
    border       : solid 2px #d30000;
    border-radius: 50%;
    margin       : 0 18px;
    margin-top   : 28px
}

main .content .title-wrap p {
    font-size : 18px;
    color     : #303030;
    margin-top: 25px
}

main .about h3 {
    font-size       : 16px;
    color           : #3059a2;
    padding         : 14px 21px;
    display         : inline-block;
    background-color: #e6e6e6;
    border-radius   : 4px;
    margin-top      : 33px;
    margin-bottom   : 22px;
    font-weight     : bold
}

main .about .company-intro {
    font-size: 14px
}

main .about .company-intro p {
    color      : #303030;
    line-height: 24px;
    font-size  : 16px;
}

main .about .company-intro .text-indent {
    text-indent: 2em;
}

main .about .company-intro h4 {
    color      : #000;
    line-height: 36px;
    font-weight: bold;
    margin-top : 32px;
    font-size  : 16px;
}

main .about .company-intro .certificates {
    margin-bottom: 84px;
    margin-top   : 44px
}

main .about .company-intro .certificates img {
    box-shadow: 2px 6px 8px rgba(0, 0, 0, 0.2)
}

main .about .company-intro .certificates img.middle {
    margin: 0 19px
}

main .about .projects>div {
    padding-left: 5px
}

main .about .projects img {
    margin       : 0 6px;
    margin-bottom: 15px
}

main .about .software {
    margin-bottom: 43px
}

main .about .software .item {
    width        : 384px;
    height       : 241px;
    border       : solid 1px #d2d2d2;
    text-align   : center;
    font-weight  : bold;
    box-sizing   : border-box;
    padding      : 14px 40px 0 40px;
    float        : left;
    margin-bottom: 26px
}

main .about .software .item h4 {
    font-size  : 16px;
    color      : #3059a2;
    line-height: 60px
}

main .about .software .item p {
    font-size  : 14px;
    line-height: 32px;
    color      : #666666
}

main .about .software .item p strong {
    color: #ffb832
}

main .about .software .item h5 {
    color      : #272727;
    font-size  : 14px;
    padding-top: 21px;
    margin-top : 19px;
    border-top : 1px solid #d2d2d2
}

main .about .software .item h5 img {
    vertical-align: middle;
    margin-right  : 9px
}

main .about .software .item.middle {
    margin: 0 24px
}