/* 必要布局样式css */
.large-content {
    height: 725px;
    background: url(../images/port-bg.png) no-repeat;
    background-size: cover;
    background-position: center 50%;
    -webkit-transition: all 1s;
    -moz-transition: all 1s;
    -ms-transition: all 1s;
    -o-transition: all 1s;
    transition: all 1s;
    padding: 80px 0;
}

.large-group {
    width: 1420px;
    margin: 0 auto;
    position: relative;
    height: auto;
}

.large-header {
    font-weight: normal;
    text-align: center;
    margin-bottom: 40px;
    color: #fff;
}

.large-header em {
    display: block;
    margin-bottom: 14px;
    font-style: normal;
    font-size: 30px;
}

.large-switch-circle ul {
    font-size: 16px;
    color: #fff;
    text-align: center;
}

.large-switch-circle ul li {
    opacity: .8;
    cursor: pointer;
    margin: 0 20px;
    position: relative;
    display: inline-block;
}

.large-switch-circle ul li:hover {
    color: #fff;
    opacity: 1;
}

.large-switch-circle ul .on {
    opacity: 1;
}

.large-switch-circle ul .on:after {
    content: '';
    width: 20px;
    height: 1px;
    display: inline-block;
    background: #fff;
    position: absolute;
    bottom: -10px;
    left: calc(50% - 10px);
    animation: bigdata-underline-grow both .3s;
}

.large-switch-middle {
    width: 1420px;
    margin-top: 40px;
    position: absolute;
    z-index: 1;
}

.large-switch-middle ul li {
    cursor: pointer;
    width: 234px;
    height: 210px;
    color: #fff;
    overflow: hidden;
    float: left;
    margin: .5px;
    background-image: -webkit-linear-gradient(bottom, rgba(47, 42, 65, 0.5) 0%, #2e3d50 100%);
    background-image: -moz-linear-gradient(bottom, rgba(47, 42, 65, 0.5) 0%, #2e3d50 100%);
    background-image: -moz-linear-gradient(to top, rgba(47, 42, 65, 0.5) 0%, #2e3d50 100%);
    background-image: -o-linear-gradient(to top, rgba(47, 42, 65, 0.5) 0%, #2e3d50 100%);
    background-image: linear-gradient(to top, rgba(47, 42, 65, 0.5) 0%, #2e3d50 100%);
    background-repeat: repeat;
}

.large-switch-item {
    opacity: 1;
    -webkit-transition: opacity 0.3s;
    -moz-transition: opacity 0.3s;
    -ms-transition: opacity 0.3s;
    -o-transition: opacity 0.3s;
    transition: opacity 0.3s;
}

.large-item-img {
    width: 60px;
    display: block;
    text-align: center;
    height: 80px;
    margin: 0 auto;
    -webkit-transition: all 0.8s;
    -moz-transition: all 0.8s;
    -ms-transition: all 0.8s;
    -o-transition: all 0.8s;
    transition: all 0.8s;
}

.large-item-img img {
    width: 50px;
    height: 50px;
}

.large-item-title {
    position: relative;
    text-align: center;
}


.large-item-title a{ color:#FFFFFF;}


.large-item-title:after {
    content: '';
    display: block;
    position: absolute;
    width: 20px;
    height: 1px;
    background: #fff;
    bottom: -10px;
    left: calc(50% - 10px);
}

.large-item-text {
    opacity: .4;
    height: 0;
    margin: 20px 0;
    padding: 0 20px;
    text-align: center;
    font-size: 12px;
    overflow: hidden;
    line-height: 20px;
}

.large-item-link {
    opacity: 0;
    display: block;
    width: 100px;
    margin: auto;
    color: #fff;
    font-size: 12px;
    text-align: center;
    line-height: 28px;
    border: 1px solid #fff;
    text-decoration: none;
    cursor: pointer;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    -ms-transition: all 0.3s;
    -o-transition: all 0.3s;
    transition: all 0.3s;
}

.large-switch-middle .large-item-link:hover {
    color: #fff;
    border-color: #108cee;
    background: #108cee
}

.large-switch-middle .large-switch-item:hover {
    background-image: -webkit-linear-gradient(top, #406594 0%, rgba(87, 17, 118, 0.4) 100%);
    background-image: -moz-linear-gradient(top, #406594 0%, rgba(87, 17, 118, 0.4) 100%);
    background-image: -moz-linear-gradient(to bottom, #406594 0%, rgba(87, 17, 118, 0.4) 100%);
    background-image: -o-linear-gradient(to bottom, #406594 0%, rgba(87, 17, 118, 0.4) 100%);
    background-image: linear-gradient(to bottom, #406594 0%, rgba(87, 17, 118, 0.4) 100%);
    background-repeat: repeat
}

.large-switch-middle ul li:hover .large-item-img {
    height: 45px;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -ms-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;
    margin-top: 15px;
}

.large-switch-middle .large-switch-item:hover .large-item-img img {
    width: 30px;
    height: 30px;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -ms-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;
}

.large-switch-middle .large-switch-item:hover .large-item-text {
    height: initial;
}

.large-switch-middle .large-switch-item:hover .large-item-link {
    opacity: 1;
}

.large-switch-item .large-item-img {
    margin-top: 50px;
}

.large-switch-dx {
    position: relative;
    text-align: center;
    line-height: 212px;
}

.large-switch-middle .large-switch-item-clear:hover {
}

.large-switch {
    width: 100%;
}