.swiper-button-prev,
.swiper-button-next {
    background: none;
    margin-top: 0;
    transform: translateY(-50%);
    opacity: 1 !important;
    font-size: 20px;
    width: auto;
    height: auto;
}

.banner {
    position: relative;
}

.banner:before {
    content: '';
    width: 100%;
    height: 100%;
    background-size: 100% 100%;
    background-image: url(../images/shadow_02.png);
    background-repeat: no-repeat;
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 2;
}

.banner .swiper-slide>img {
    width: 100%
}

.bannertab {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
}

.bannertab ul {
    height: 100%
}

.bannertab li {
    width: 25%;
    display: inline-block;
    vertical-align: top;
    height: 100%;
    text-align: center;
    position: relative;
    color: #fff;
    overflow: hidden;
    box-sizing: border-box;
    border-right: 1px solid rgba(255, 255, 255, .4);
}

.bannertab li:last-child {
    border-right: none
}

.bannertab li:after {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: rgba(16, 78, 165, .7);
    position: absolute;
    left: 0;
    top: 0
}

.bannertab li:nth-child(odd):after {
    transform: translateY(100%);
    -ms-transform: translateY(100%);
    -webkit-transform: translateY(100%);
}

.bannertab li:nth-child(even):after {
    transform: translateY(-100%);
    -ms-transform: translateY(-100%);
    -webkit-transform: translateY(-100%);
}

.bannertab li.ac:after {
    transform: translateY(0);
    -ms-transform: translateY(0);
    -webkit-transform: translateY(0);
}

.b_t_inner {
    position: absolute;
    width: 100%;
    left: 0;
    bottom: 0;
    transform: translateY(0);
    -ms-transform: translateY(0);
    -webkit-transform: translateY(0);
    z-index: 2;
    color: #fff;
    box-sizing: border-box;
    padding: 0 80px;
}

.bannertab li.ac .b_t_inner {
    bottom: 50%;
    transform: translateY(50%);
    -ms-transform: translateY(50%);
    -webkit-transform: translateY(50%);
}

.bannertab li a {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 3;
}

.b_t_inner img {
    margin: 0 auto 60px;
    display: none
}

.b_t_inner h2 {
    font-family: 'he';
    font-size: 24px;
    text-transform: uppercase;
    width: 81%;
    margin: 0 auto 20px;
    line-height: 30px;
    display: none
}

.b_t_inner h3 {
    margin-bottom: 35px;
    font-size: 24px;

}

.b_t_inner p {
    text-align: justify;
    color: rgba(255, 255, 255, .6);
    display: none;
    font-size: 16px;
    line-height: 32px;
}

.bannertab li:nth-child(1) .b_t_inner p,
.bannertab li:nth-child(1) .b_t_inner h2,
.bannertab li:nth-child(1) .b_t_inner img,
.bannertab li:nth-child(1) .b_t_inner h6 {
    display: block
}

.indextab ul {
    width: 100%;
    display: none;
}

.indextab>ul>li {
    display: inline-block;
    vertical-align: top;
    width: 25%;
    border-right: 1px solid #e6e6e6;
    text-align: center;
    position: relative;
    box-sizing: border-box
}

.indextab>ul>li>a {
    display: block;
    height: 450px
}

.indextab>ul>li:before {
    content: '';
    width: 100%;
    height: 100%;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-image: url(../images/back_03.jpg);
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
}

.indextab>ul>li:last-child {
    border-right: none
}

.i_tit {
    padding: 95px 0 26px;
    position: relative;
    z-index: 2;
}

.i_tit h2 {
    color: #104ea5;
    font-family: 'he';
    font-size: 24px;
    text-transform: uppercase;
    display: none;
}

.i_tit h3 {
    font-size: 24px;
    color: #282828;
    margin-bottom: 16px;
}

.i_tit:after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border: 12px solid #dedede;
    border-color: #dedede transparent transparent transparent;
    margin: 0 auto;
    border-width: 12px 4px 0 4px;
}

.i_t_inner {
    position: relative;
    z-index: 2;
}

.i_t_inner img {
    width: 100%;
    position: absolute;
    left: 0;
    top: 0;
    /* display: none */
    opacity: 0;
}

.i_t_inner p {
    width: 60%;
    margin: 0 auto;
    color: #777777;
    line-height: 24px;
}

.indextab li:hover:before,
.indextab li:hover img {
    opacity: 1;
}


.indextab li:hover .i_tit {
    padding-top: 55px
}

.indextab li:hover .i_tit:after {
    border-width: 0
}

.indextab li:nth-child(3) .i_tit {
    padding-top: 95px
}

.indextab li:nth-child(3) .i_tit h2 {
    color: #2c83a7
}

.indextab li:nth-child(3) .i_tit h3 {
    color: #282828
}

.indextab li:nth-child(3) .i_tit:after {
    border-width: 12px 4px 0 4px;
}

.indextab li:nth-child(3):before {
    opacity: 0;
}

.index_new {
    padding: 0 75px;
    box-sizing: border-box;
    text-align: left
}

.index_new li a {
    font-size: 0;
    color: #777777;
}

.index_new span {
    display: inline-block;
    vertical-align: middle;
    line-height: 30px;
    margin-right: 12px;
    font-size: 14px;
}

.index_new font {
    display: inline-block;
    vertical-align: middle;
    line-height: 30px;
    white-space: nowrap;
    width: calc(100% - 52px);
    text-overflow: ellipsis;
    overflow: hidden;
    font-size: 14px
}

.index_new li:hover a {
    color: #2c83a7
}