/*通用*/
.idx_title {
    font-size: 48px;
    line-height: 60px;
    color: #b81c22;
}

.idx_title:after {
    content: '';
    display: block;
    width: 200px;
    height: 1px;
    margin-top: 25px;
    background-color: #b81c22;
}

.idx_title.text-white:after {
    background-color: #fff;
}

.idx_title.text-center:after {
    width: 90px;
    height: 8px;
    margin: 25px auto 0;
}

@media (max-width: 990px) {
    .idx_title {
        font-size: 36px;
        line-height: 50px;
    }
}


/*Header*/
header {
    height: 100px;
    background: url("images/bg-header.png") center center;
    background-size: cover;
    z-index: 9990;
}

.header-fixed {
    position: fixed;
    top: 0;
    box-shadow: 0 5px 5px 5px rgba(0, 0, 0, .2);
    animation: le_fade_down_in 1s;
    -webkit-animation: le_fade_down_in 1s;
}

.home header {
    display: none;
}

.home header.header-fixed {
    display: block;
}

@keyframes le_fade_down_in {
    0% {
        transform: translateY(-80px);
        opacity: 0;
    }
    100% {
        transform: translateY(0px);
        opacity: 100%
    }
}

@-webkit-keyframes le_fade_down_in {
    0% {
        transform: translateY(-80px);
        opacity: 0;
    }
    100% {
        transform: translateY(0px);
        opacity: 100%
    }
}

header .logo {
    width: 300px;
    height: 90px;
    background-image: url("images/logo.png");
    background-size: contain;
    background-position: left center;
    background-repeat: no-repeat;
}

@media (max-width: 990px) {
    header {
        height: 90px;
        background-color: #b81c22;
        background-image: none;
        background-size: auto 68%;
        background-position: 12px center;
        background-repeat: no-repeat;
    }

    .home header {
        display: block;
    }

    .mobile_header .logo {
        background-image: url("images/logo_white.png");
    }
}


/*VIS*/
.logo_v {
    width: 240px;
    height: 100px;
    background-image: url("images/logo_v.png");
    background-position: left center;
}

.vis h1 {
    font-size: 64px;
    font-weight: bold;
    letter-spacing: .1em;
}

.vis h2 {
    font-size: 22px;
}

.vis h3 {
    font-size: 24px;
}

.vis_menu {
    height: 100px;
    bottom: 30px;
}

.home_vis .vis_pic,
#news_slider .swiper-slide {
    height: 660px;
}

.home_vis .swiper-slide h2 {
    display: flex;
    height: 100px;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    padding: 20px 30px 20px 180px;
    margin-bottom: 0;
    font-size: 18px;
    line-height: 30px;
    background-color: rgba(0, 0, 0, .33);
    bottom: 30px;
}

.home_vis .swiper-button-prev {
    left: 115px;
}

.home_vis .swiper-button-next {
    right: 30px;
}

@media (max-width: 1280px) {
    .vis h1 {
        font-size: 39px;
        letter-spacing: 0;
    }

    .vis h2 {
        font-size: 18px;
    }

    .vis_menu {
        bottom: 60px;
        flex-wrap: wrap;
    }

    .vis_menu > div {
        width: 100%;
    }

    .home_vis .swiper-slide h2 {
        padding: 20px 30px;
    }
}

@media (max-width: 768px) {
    .home_vis .vis_pic, #news_slider .swiper-slide {
        height: 520px;
    }
}

/*论坛情况*/
.home_forums_intro {
    background-color: #fff;
    background-image: url("images/bg_home_forums.jpg");
}

.home_forums .idx_title {
    /*width: 8em;*/
}

.home_forums .list_item > div {
    display: block;
    border-radius: 20px;
    background-color: #fff;
    box-shadow: 5px 5px 10px 0 rgba(0, 0, 0, .25);
}

.home_forums .list_item h3 {
    font-size: 18px;
}

.home_forums .list_item:hover .text-gray,
.study_list .list_item:hover .text-gray {
    color: #b81c22;
}

.home_forums .list_item .txt {
    line-height: 1.5em;
    max-height: 4.5em;
    overflow: hidden;
}

@media (min-width: 990px) {
    .home_forums_intro {
        clip-path: polygon(0 0, 100% 0, calc(100% - 180px) 100%, 0 100%);
    }

    .home_forums_intro > div {
        max-width: 800px;
        padding-right: 200px !important;
    }

    .home_forums_list > div {
        max-width: 760px;
        margin-left: -200px;
    }
}

@media (max-width: 768px) {
    .home_forums_list .list_item img {
        width: 100%;
    }
}

/*<!--学术研究-->*/
.home_study {
    background: url("images/bg_home_study.jpg") right center;
    background-size: auto 100%;
}

.study_list .list_item {
    border-bottom: 1px #bcc2cc solid;
}

.study_list .list_item h3 {
    font-size: 18px;
}

.study_list .list_item .txt {
    line-height: 1.5em;
    max-height: 0;
    overflow: hidden;
    transition: all .5s;
}

.study_list .list_item:hover .txt {
    max-height: 4.5em;
}

@media (min-width: 990px) {
    .home_study .study_focus {
        clip-path: polygon(0 0, calc(100% - 180px) 0, 100% 100%, 0 100%);
    }

    .home_study .study_focus > div {
        max-width: 800px;
        padding-right: 200px !important;
    }

    .home_study .study_list > div {
        max-width: 560px;
    }
}

@media (max-width: 990px) {
    .home_study .study_focus img {
        width: 100% !important;
    }
}

/*Footer*/
footer {
    height: 150px;
}

footer .logo {
    display: block;
    width: 64px;
    height: 150px;
}

footer .qr p img {
    width: 110px;
    padding: 30px 20px 30px 0;
}

footer .qr p:last-child {
    display: none;
}

.footer_contact p {
    line-height: 120%;
    margin-bottom: 0;
}

.footer_contact img {
    width: auto;
    height: 64px;
    padding-bottom: 10px;
}