/*global*/
html, body {
    height: 100%;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'liga';
    -webkit-text-size-adjust: 100%;
    font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Ubuntu, Helvetica Neue, Helvetica, Arial, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Source Han Sans CN, sans-serif;
    font-weight: 400;
    background: #f4f4f4;
    font-size: 14px;
    color: #232b40;
}
body {
    background-color: #f5f5f5;
}
a {
    color: #232b40;
}
a:hover {
    color: #17a2b8;
    text-decoration: none;
}
.btn{
    border-radius: .5rem;
}
.btn-info-light{
    border-color: #17a2b8;
    color: #17a2b8;
}
.btn-info-light:hover {
    color: #fff;
    background-color: #17a2b8;
    border-color: #17a2b8
}
.btn-info-white{
    border-color: #fff;
    color: #fff;
    margin-right: 20px;
}
.btn-info-white:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.2);
    border-color: #fff
}

.section-title{
    font-size: 2.5rem;
    line-height: 1.5;
    letter-spacing: 2px;
}
.section-desc{
    font-size: 1.5rem;
    line-height: 1.5;
    font-weight: lighter;
    letter-spacing: 1px;
}

/*header*/
.header-content {
    position: relative;
    z-index: 20;
    padding: 0;
    /*
    border-top: 4px solid #17a2b8;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(153, 153, 153, 0.1);
    */
}

@media (min-width: 992px) {
    .navbar-expand-lg .navbar-nav .nav-link {
        padding-right: 1.5rem;
        padding-left: 1.5rem;
    }
}
.navbar {
    padding: 0;
}
.navbar-expand-lg .navbar-collapse{
    margin-top: 30px;
}
.navbar-light .navbar-nav .nav-link {
    font-size: 1.14rem;
    color: #232b40;
}
.navbar-light .navbar-nav .btn {
    padding: 0.5rem 1.5rem;
    font-size: 1.14rem;
}
.navbar .navbar-brand{
    margin-top: 25px;
}
.navbar .navbar-brand img {
    height: 45px;
}

/*footer*/
.footer-content {
    text-align: center;
    padding: 4rem 0 1rem 0;
    background: #212930;
    color: #FFF;
}
.footer-content hr{
    border-top: 1px solid rgba(233, 237, 242, 0.1);
    margin: 50px 0;
}
.footer-content .section-title{
    font-size: 3.5rem;
}
.footer-content .section-title span{
    color: #14c1d4;
    font-size: 4rem;
}
.footer-content .news{
    font-size: 16px;
    line-height: 30px;
    margin-bottom: 4rem;
}
.footer-content .news .section-title{
    font-size: 1.3rem;
}
.footer-content .news .list-unstyled a{
    color: #FFF;
    opacity: 0.6;
}

.footer-content .footer-link a {
    font-size: 20px;
    padding: 1rem 0;
    color: #666;
}
.footer-content .copyright {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/*通用*/
.img-zoom {
    overflow: hidden;
    display: inline-block;
}
.img-zoom img {
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    -o-transition: all 0.3s;
    transition: all 0.3s;
}
.img-zoom:hover img {
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -o-transform: scale(1.1);
    -ms-transform: scale(1.1);
    transform: scale(1.1);
}
.object-responsive {
    position: relative;
    display: block;
    height: 0;
    padding: 0;
    overflow: hidden;
}
.object-responsive img {
    position: absolute;
    object-fit: cover;
    width: 100%;
    height: 100%;
    border: 0;
}
.object-responsive-16by9 {
    padding-bottom: 56.25%;
}
.object-responsive-4by3 {
    padding-bottom: 75%;
}
.object-responsive-square {
    padding-bottom: 100%;
}

/* 加载更多 */
.loadmore {
    width: 80%;
    margin: 1.5em auto;
    line-height: 1.6em;
    font-size: 14px;
    text-align: center;
}
.loadmore-tips {
    display: inline-block;
    vertical-align: middle;
}
.loadmore-line {
    border-top: 1px solid #E5E5E5;
    margin-top: 2.4em;
}
.loadmore-line .loadmore-tips {
    position: relative;
    top: -0.9em;
    padding: 0 .55em;
    background-color: #FFFFFF;
    color: #808080;
}

/*banner*/
.banner{
    position: relative;
    background-color: #FFF;
    background-image: url('../../img/banner.jpg');
    background-position: top center;
    background-size: cover;
    padding: 0;
    margin-top: -80px;
}
.banner:before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    right: 0;
    z-index: 0;
    background-color: #FFFFFF;
    opacity: 0.8;
}
.banner .container{
    padding: 120px 0 30px 0;
    position: relative;
    z-index: 1;
}
.banner .section-desc{
    font-size: 1.65rem;
}
.banner .embed-responsive{
    border: 5px solid rgba(19,132,150,0.3);
    border-radius: 20px;
    box-shadow: 0 0 10px rgba(19,132,150,0.3);
}
#home {
    height: 400px;
    position: relative;
    background: url("../../img/video_load.jpg") center center no-repeat;
    background-size: cover;
    box-shadow: 0 0 20px rgba(19,132,150,0.8);
}
#home #video_background {
    display:block;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    position:relative;
    z-index:1;
}
#home .bgvideo {
    background: url("../../img/video_load.jpg") center center no-repeat;
    background-size: cover;
}
#home .pattern_bg {
    background: url("../../img/pattern.png") repeat;
    opacity: 0;
    height: 100%;
    display: inline-block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index:2;
}
#home .home-center {
    height: 100%;
    display: table;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: 90%;
    margin-left: 5%;
    margin-right: 5%;
    z-index:3;
    color:#FFF;
}
#home .div-align-center {
    display: table-cell;
    vertical-align: middle;
    text-align: center;
}
@media (min-width: 992px) {
    .banner .container{
        padding: 130px 0 80px 0;
    }
    .banner .section-title{
        font-size: 3.6rem;
    }
    .banner .section-desc{
        margin-bottom: 50px;
    }
}

/*about*/
.about{
    position: relative;
    background-color: #0b4555;
    color: #F5F5F5;
}
.about .container{
    padding: 90px 0;
}
.about .section-title{
    padding-bottom: 20px;
    margin-bottom: 40px;
    border-bottom: 4px solid snow;
}
.about .section-desc{
    text-align: justify;
    text-indent: 40px;
}
.about-item{
    border-radius: 6px;
    background: #FFF;
    color: #0b4555;
    margin-top: 30px;
    padding: 10px;
    cursor: pointer ;
}
.about-item img{
    width: 100%;
}

/*brand*/
.brand{
    position: relative;
    background-color: #fff;
}
.brand .container{
    padding: 80px 0 80px 0 ;
}
.brand .section-desc{
    margin-bottom: 30px;
    opacity: 0.6;
}
.brand-item{
    padding: 20px 20px;
}
.brand-item img{
    width: 100%;
}
.add-brand .btn{
    width: 100%;
    margin-right: 0;
    padding: 25px 0;
    font-size: 16px;
    color: #fff;
    background-color: #17a2b8;
    border-color: #17a2b8
}

/*tech*/
.tech{
    position: relative;
    background-color: #f6fbff;
}
.tech .container{
    padding: 80px 0;
}
.tech .section-desc{
    margin-bottom: 50px;
    opacity: 0.6;
}
.tech .tech-img{
    padding: 0 30px;
}
.tech .tech-img img{
    width: 100%;
    border-radius: 10px;
}
.tech .tech-text{
    font-size: 20px;
}

/*contact*/
/*
.contact{
    height: 470px;
    background-repeat: no-repeat;
    background-size: cover;
    -o-object-fit: cover;
    object-fit: cover;
    background-position: center center;
    background-image: url('../../img/contact-bg.png');
}
.contact .container{
    padding: 80px 0 80px 0;
}

.contact-block{
    background-color: #0b4555;
    color: #FFF;
    border-radius: 16px;
    padding: 160px 0;
    position: relative;
}
.contact-block:after{
    content: 'TWINGUIDE';
    position: absolute;
    bottom: -50px;
    left: 0;
    opacity: 0.02;
    font-size: 190px;
    font-weight: bold;
    font-style: italic;
    width: 100%;
}
*/

/*artical*/
.artical-box {
    background-color: #fff;
    padding: 15px;
}
.artical-title {
    padding: 7px 0;
    font-weight: bold;
}
.artical-content {
    font-size: 15px;
}
.artical-content p {
    font-size: 15px;
    padding: 5px 0;
    line-height: 1.8;
    margin-bottom: 0;
}
.artical-content img {
    vertical-align: middle;
    height: auto;
}