@charset "utf-8";
.fl {
    float: left;
}

.fr {
    float: right;
}

.transition_img {
    overflow: hidden;
    display: flex;
}

.transition_img img {
    width: 100%;
    transition: all .5s;
}

.transition_img:hover img {
    transform: scale(1.2);
}


/* 头部 */

.hd_top {
    display: block;
}


/* logo */

.header,
.mobile_img {
    width: 100%;
}

.mobile_img {
    display: none;
}

.banner .logoimg {
    width: 1200px;
    /* height: 285px; */
    margin: 0 auto;
}

.banner_content_img {
    position: relative;
    top: 7px;
    left: 0;
}


/* 导航栏 */

.nav {
    width: 100%;
    background: #c11c14;
}

.nav_ul {
    display: flex;
    justify-content: space-between;
    width: 1200px;
    /* line-height: 58px; */
    margin: 0 auto;
}

.nav_ul li {
    position: relative;
    padding: 19px 22px;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
}

.nav_ul li:hover span {
    opacity: 1;
}

.nav_ul li span {
    position: absolute;
    bottom: 0;
    left: calc(50% - 25px);
    width: 50px;
    height: 5px;
    background: #ebb6b3;
    opacity: 0;
    transition: all .3s;
}

.nav_ul li span.active {
    opacity: 1;
}


/* 头部完 */


/* 内容部分-青年大学习 */

.qndxx_content,
.qntk_content,
.szmk_content,
.szykt_content,
.szsj_content,
.szjl_content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 6px;
}

.szsj_content,
.szjl_content {
    display: block;
}

.szsj_content {
    display: block;
}

.content_item_1 {
    width: 370px;
    /* height: 315px; */
    margin-top: 25px;
}

.content_item_1_img {
    width: 370px;
    height: 211px;
}

.content_item_1_text {
    margin-top: 16px;
}

.content_item_1_text p a {
    font-size: 16px;
    color: #000;
}

.content_item_1_text p.keyword_1 {
    margin-top: 20px;
}

.content_item_1_text p.keyword_1 span {
    color: #868585;
}

.content_item_1_text p.keyword_1 span:first-child {
    float: left;
}

.content_item_1_text p.keyword_1 span:last-child {
    float: right;
}

.loadingTips {
    text-align: center;
    box-shadow: 0px 0px 20px #d7dfe6;
    background: #fff;
    width: 1200px;
    height: 20px;
    margin: 30px auto;
    padding: 10px 0px;
}

.loadingTips i {
    padding: 0 10px;
}


/* 内容部分-思政实践 */

.content_item_2,
.content_item_3_text {
    padding: 30px 20px 25px 14px;
}

.content_item_2_img {
    width: 332px;
    height: 188px;
}

.content_item_2_img img {
    width: 100%;
}

.content_item_2_text {
    margin-left: 30px;
    width: calc(100% - 362px);
}

.content_item_2_title {
    font-size: 22px;
}

.content_item_2_contnet {
    line-height: 2;
    margin-top: 26px;
}

.content_item_2_contnet a {
    color: #c11c14;
}

.keyword_2 {
    margin-top: 27px;
}

.keyword_2 span {
    color: #868585;
}

.keyword_2 span.fl+span.fl {
    margin-left: 28px;
}

.keyword_3 span {
    color: #868585;
}


/* 纯文字 */

.content_item_3 {
    padding: 30px 0 25px 0;
}

.content_item_2,
.content_item_3 {
    border-bottom: 1px dashed #ccc;
}

.content_item_3_text {
    margin-left: 0px;
    width: 100%;
}

.content_item_3_title,
.content_item_2_title {
    font-size: 22px;
}

.content_item_3_title a,
.content_item_2_title a {
    color: #000;
}

.content_item_3_contnet {
    line-height: 2;
    margin-top: 26px;
}

.content_item_3_contnet a {
    color: #c11c14;
}

.keyword_3 {
    margin-top: 27px;
}

.keyword_3 span.fl+span.fl {
    margin-left: 28px;
}

.third_header {
    height: 72px;
    padding: 20px 0;
    width: 100%;
    background: url(//dszk.youth.cn/images/thirdPage.png)no-repeat center 0;
    background-size: 100% 100%;
}

.third_logo {
    width: 146px;
    height: 72px;
    float: left;
}

.third_logo img {
    vertical-align: middle;
    text-align: center;
}

.third_header_ul {
    display: flex;
    justify-content: space-around;
    margin-left: 25px;
    line-height: 72px;
}

.third_header_ul li {
    cursor: pointer;
}

.third_header_ul li a {
    color: #fff;
    font-size: 16px;
}


/* third_content_header */

.third_content_header {
    padding-top: 26px;
    padding-bottom: 16px;
    border-bottom: 1px dashed #ccc;
}

.third_content_title {
    text-align: center;
    font-size: 28px;
    margin: 40px;
}

.third_content_subTitle {
    margin-top: 22px;
    text-align: center;
    font-size: 12px;
    color: #757577;
}

.third_content_subTitle span {
    padding-right: 10px;
}

.third_content_subTitle span a {
    color: #757577;
}

.article {
    width: 1000px;
    margin: 0 auto;
    font-size: 16px;
    padding-bottom: 68px;
    padding-top: 30px;
    color: #565656;
}

.article p {
    margin-top: 1em;
    margin-bottom: 1em;
    line-height: 30px;
}

.article img {
    max-width: 800px;
    margin: 0 auto;
    display: block;
}

.article video {
    max-width: 100%;
    margin: 0 auto;
    display: block;
}

.article img+p {
    margin-top: 44px;
}

footer {
    background: #efefef;
    color: #666;
    font-size: 16px;
    text-align: center;
    line-height: 50px;
    clear: both;
}

.pc_footer {
    display: block;
}

.third_content_subTitle .author,
.third_content_subTitle .pub_time {
    display: inline-block;
}

footer,
.m_banner {
    display: none;
}

.rdwz_fh {
    text-align: right;
    width: 1000px;
    margin: 0 auto;
}


/*分页部分的样式*/

.rdwz {
    display: block;
}

.fy {
    width: auto;
    line-height: 70px;
    text-align: center;
    margin: 0 auto;
    padding: 0;
    font-size: 14px;
}

.page_current {
    display: inline-block;
    width: 25px;
    height: 25px;
    border: 1px solid #CCCCCC;
    background: rgb(255, 0, 0);
    color: #fff;
    line-height: 25px;
}

@media screen and (max-width: 1200px) and (min-width: 750px) {
    .nav_ul {
        width: 750px;
    }
    .nav_ul li {
        font-size: 14px;
        padding: 14px 10px;
        flex-wrap: wrap;
    }
    .nav {
        height: auto;
    }
    .qndxx_content,
    .szsj_content,
    .qntk_content,
    .szmk_content,
    .szykt_content,
    .szjl_content,
    .banner .logoimg,
    .third_content,
    .third_nav {
        width: 750px;
    }
    .content_item_1 {
        width: 360px;
    }
    .third_content {
        width: 95%;
    }
    .article,
    .rdwz_fh {
        width: 80%;
    }
    .article img,
    .article video {
        width: 400px;
    }
    .content_item_2_text {
        margin-left: 15px;
        width: calc(100% - 362px);
    }
    .content_item_2_contnet {
        margin-top: 22px;
    }
    .keyword_2 {
        margin-top: 22px;
    }
    .content_item_3_text {
        margin: 0;
    }
    .loadingTips {
        width: 750px;
    }
    .content_item_2_title,
    .content_item_3_title {
        font-size: 20px;
    }
    .rdwz {
        display: block;
    }
    .third_header_ul li a {
        font-size: 14px;
    }
    .hd_top {
        display: none;
    }
}

@media screen and (max-width: 749px) {
    .qndxx_content,
    .szsj_content,
    .qntk_content,
    .szmk_content,
    .szykt_content,
    .szjl_content,
    .banner_content .logoimg,
    .third_content {
        width: 90%;
        margin: 0 auto;
    }
    .logoimg {
        display: none;
    }
    .banner {
        display: flex;
        width: 100%;
        background-size: 100%;
        height: unset;
    }
    .banner>img {
        width: 100%;
    }
    .mobile_img {
        display: block;
    }
    .article {
        width: 100%;
        padding-bottom: 0px;
        font-size: 18px;
        color: #444;
        padding-top: 20px;
    }
    .article p {
        margin-top: 0;
        margin-bottom: 20px;
    }
    .article img,
    .article video,
    .rdwz_fh {
        width: 100%;
    }
    .rdwz_fh {
        padding-top: 20px;
    }
    .third_logo {
        width: 80px;
        height: 42px;
        padding-top: 10px;
        margin-left: 7px;
    }
    .third_logo img {
        width: 100%;
    }
    .third_nav {
        width: 100%;
    }
    .nav_ul,
    .third_header_ul {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        margin-left: 0;
    }
    .third_header_ul {
        width: calc(100% - 87px);
    }
    .third_header {
        padding: 20px 0 0 0;
        background: url(//dszk.youth.cn/images/thirdPageLogo.png)no-repeat 0 0;
        background-size: 100% 100%;
    }
    .nav_ul li {
        font-size: 14px;
    }
    .nav_ul li,
    .third_header_ul li {
        width: 22%;
        text-align: center;
        flex-wrap: wrap;
        padding: 5px 0;
        line-height: 20px;
    }
    .nav {
        padding: 8px 0px;
    }
    .nav,
    .third_nav {
        height: auto;
    }
    .content_item_1 {
        width: 100%;
    }
    .content_item_2 {
        width: 100%;
        margin: 0 auto;
        padding: 30px 0px 25px 0px;
    }
    .content_item_2_text {
        margin: 15px 0 0 0;
        width: 100%;
    }
    .content_item_2_img {
        width: 100%;
    }
    .content_item_2_contnet {
        margin-top: 18px;
    }
    .keyword_2 {
        margin-top: 18px;
    }
    .content_item_3_text {
        margin: 0;
    }
    .keyword_3 {
        margin-top: 12px;
    }
    .article_img+p {
        margin-top: 20px;
    }
    .third_content_title {
        margin: 22px 0px 0px 0px;
        font-size: 22px;
        color: #444;
        font-weight: bold;
    }
    .third_content_subTitle {
        font-size: 14px;
        color: #666;
        margin-top: 20px;
    }
    .pc_footer,
    .banner {
        display: none;
    }
    footer,
    .m_banner {
        display: block;
    }
    .loadingTips {
        width: 100%;
    }
    .content_item_2_title,
    .content_item_3_title {
        font-size: 18px;
    }
    .rdwz,
    .third_content_subTitle .author,
    .third_content_subTitle .pub_time {
        display: none;
    }
    .third_header_ul li a {
        font-size: 14px;
    }
    .hd_top {
        display: none;
    }
    .content_item_1_img,
    .content_item_2_img {
        height: auto;
    }
    .transition_img {
        display: block;
        width: 100%;
    }
    .article .prism-player {
        margin-bottom: 1em;
    }
}

@media screen and (max-width: 420px) {
    .third_header_ul li {
        font-size: 12px;
    }
}