* {
    margin: 0;
    padding: 0;
    font-family: "微软雅黑", "microsoft yahei";
}

a:active {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

a:visited {
    text-decoration: none;
}

a:link {
    text-decoration: none;
}

a:focus {
    text-decoration: none;
}

body {
    position: relative;
}

.clearfix {
    overflow: hidden;
}

.clearfix_2::after {
    content: '';
    display: block;
    height: 0;
    visibility: hidden;
    clear: both;
}

.hiddenColor {
    visibility: hidden;
}

.hand {
    cursor: pointer;
}

.dot1 {
    display: block;
    word-break: keep-all;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dot2 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

input,
img {
    border: none;
}

.cover100 img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.back100 {
    background-size: 100% 100%;
    background-repeat: no-repeat;
}

article,
aside,
footer,
header,
time,
video,
main,
nav,
h4,
h3,
section {
    display: block;
}

.index_main {
    margin: 0 auto;
    width: 1200px;
}

.channel_1 {
    margin-top: 40px;
}

.channel_nav {
    height: 60px;
    width: 1200px;
    background-image: url(../../public/img/5.png);
    margin-top: 40px;

    .channel_nav_a {
        float: left;
        height: 60px;
        line-height: 60px;
        color: #255590;
        font-size: 20px;
        margin: 0px 19px;
        font-weight: bold;
    }

    .channel_nav_a:nth-of-type(1) {
        color: #fff;
        margin: 0px 42px;
    }
}

.channel_1_box {
    width: 720px;
    height: 405px;
}

.channel_1_left {
    float: left;
    width: 720px;
}

.channel_1_right {
    float: right;
    width: 450px;
}

.channel_1_box_1 {
    float: left;
    width: 350px;
    margin-right: 20px;
}

.channel_1_box_2 {
    float: left;
    width: 350px;
}

.channel_name_ul {
    margin-top: 0px;

    .channel_name_ul_li {
        height: 24px;
        margin-bottom: 18px;
        display: flex;
    }

    .channel_name_ul_li_tag {
        height: 24px;
        line-height: 24px;
        color: #0046AE;
        font-size: 18px;
        margin-right: 15px;
        word-break: keep-all;
        white-space: nowrap;
    }

    .channel_name_ul_li_dot1 {
        height: 24px;
        line-height: 24px;
        color: #333;
        font-size: 18px;
        width: 100%;
    }

    .channel_name_ul_li:nth-of-type(1) .channel_name_ul_li_tag {
        display: none;
    }

    .channel_name_ul_li:nth-of-type(1) .channel_name_ul_li_dot1 {
        font-weight: bold;
        font-size: 20px;
    }

    .channel_name_ul_li:hover .channel_name_ul_li_dot1 {
        color: #255590;
    }
}

.channel_2 {
    margin-top: 16px;
}

.channel_head {
    height: 30px;
    position: relative;
    margin-bottom: 28px;

    .channel_head_name {
        float: left;
        height: 30px;
        line-height: 30px;
        color: #255590;
        font-size: 22px;
        text-indent: 22px;
        font-weight: bold;
    }

    .channel_head_name_a {
        display: block;
        height: 30px;
        line-height: 30px;
        color: #255590;
        font-size: 22px;
        font-weight: bold;
    }

    .channel_head_name::after {
        content: '';
        display: block;
        width: 3px;
        height: 18px;
        background: #255590;
        position: absolute;
        left: 0px;
        top: 6px;
        z-index: 11;
    }

    .channel_head_more {
        float: right;
        height: 30px;
        line-height: 30px;
        color: #999;
        font-size: 16px;
    }

    .channel_head_more::after {
        content: '';
        display: block;
        width: 100%;
        height: 100%;
        position: absolute;
        left: 0px;
        top: 0px;
        z-index: 22;
    }
}

.channel_head:hover .channel_head_more {
    color: #255590;
}

.channel_img_big_1_ul {
    .channel_img_big_1_li {
        width: 350px;
        height: 230px;
        margin-bottom: 31px;
        position: relative;
    }

    .channel_img_big_1_li_a {}

    .channel_img_big_1_li_img {
        display: block;
        width: 350px;
        height: 230px;
    }

    .channel_img_big_1_li_dot1 {
        width: 350px;
        height: 44px;
        line-height: 44px;
        color: #fff;
        font-size: 18px;
        padding: 0px 10px;
        box-sizing: border-box;
        position: absolute;
        z-index: 11;
        left: 0px;
        bottom: 0px;
        background: linear-gradient(0deg, rgba(0, 0, 0, 0.5) 33%, rgba(0, 0, 0, 0) 100%);
    }
}

.channel_ul_2_a {
    height: 24px;
    line-height: 24px;
    color: #333;
    font-size: 18px;
    margin-bottom: 17px;
    box-sizing: border-box;
    text-indent: 16px;
    position: relative;

    &:hover {
        color: #255590;
    }
}

.channel_ul_2_a::after {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background: #ddd;
    border-radius: 50%;
    position: absolute;
    left: 0px;
    top: 9px;
    z-index: 11;
}

.channel_ul_2_a:nth-of-type(3n-2) {
    font-weight: bold;
}

.channel_ul_2_a:hover::after {
    content: '';
    display: block;
    background: #255590;
}

.channel_img_big_2_ul {}

.channel_img_big_2_li {
    width: 350px;
    height: 230px;
    margin-bottom: 20px;
    position: relative;
}

.channel_img_big_2_li_a {}

.channel_img_big_2_li_img {
    display: block;
    width: 350px;
    height: 230px;
}

.channel_img_big_2_li_dot1 {
    width: 350px;
    height: 44px;
    line-height: 44px;
    color: #fff;
    font-size: 18px;
    padding: 0px 10px;
    box-sizing: border-box;
    position: absolute;
    z-index: 11;
    left: 0px;
    bottom: 0px;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.5) 33%, rgba(0, 0, 0, 0) 100%);
}

.channel_3 {
    margin-top: 31px;
}

.channel_ul_3_a {
    height: 24px;
    line-height: 24px;
    color: #333;
    font-size: 18px;
    margin-bottom: 17px;
    box-sizing: border-box;
    text-indent: 16px;
    position: relative;

    &:hover {
        color: #255590;
    }
}

.channel_ul_3_a::after {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background: #ddd;
    border-radius: 50%;
    position: absolute;
    left: 0px;
    top: 9px;
    z-index: 11;
}

.channel_ul_3_a:nth-of-type(3n-2) {
    font-weight: bold;
}

.channel_ul_3_a:hover::after {
    content: '';
    display: block;
    background: #255590;
}

.channel_img_big_3_ul {
    .channel_img_big_3_li {
        height: 265px;
        position: relative;
        width: 450px;
        margin-bottom: 22px;
        overflow: hidden;
    }

    .channel_img_big_3_li_a {}

    .channel_img_big_3_li_img {
        display: block;
        height: 267px;
        width: 450px;
    }

    .channel_img_big_3_li_dot1 {
        width: 450px;
        height: 44px;
        line-height: 44px;
        color: #fff;
        font-size: 18px;
        box-sizing: border-box;
        position: absolute;
        padding: 0px 10px;
        left: 0px;
        bottom: 0px;
        z-index: 11;
        background: linear-gradient(0deg, rgba(0, 0, 0, 0.5) 33%, rgba(0, 0, 0, 0) 100%);
    }
}

.channel_ul_4 {
    width: 450px;

    .channel_ul_4_li {
        width: 450px;
        display: flex;
        height: 24px;
        margin-bottom: 24px;
    }

    .channel_ul_4_li_num {
        height: 24px;
        line-height: 24px;
        color: #ccc;
        font-size: 18px;
        width: 24px;
        text-align: center;
        font-style: italic;
        margin-right: 20px;
    }

    .channel_ul_4_a {
        height: 24px;
        line-height: 24px;
        color: #333;
        font-size: 18px;

        &:hover {
            color: #255590;
        }
    }

    .channel_ul_4_li:nth-of-type(-n+3) .channel_ul_4_li_num {
        color: #255590;
    }
}

.channel_banner {
    width: 1200px;
    margin: 2px auto 0px;
}

.channel_banner_a {
    display: block;
    width: 1200px;
}

.channel_banner_img {
    display: block;
    width: 1200px;
}

.channel_img_big_4_ul {
    .channel_img_big_4_li {
        width: 350px;
        margin-bottom: 25px;
        overflow: hidden;
    }

    .channel_img_big_4_li_a {}

    .channel_img_big_4_li_img {
        display: block;
        height: 230px;
        width: 350px;
    }

    .channel_img_big_4_li_dot2 {
        height: 48px;
        width: 350px;
        color: #333;
        font-size: 18px;
        margin-top: 20px;
        line-height: 24px;
        font-weight: bold;
    }
}

.channel_img_big_4_li_a:hover .channel_img_big_4_li_dot2 {
    color: #255590;
}

.channel_img_ul_1 {}

.channel_img_ul_1_li {
    width: 165px;

    .channel_img_ul_1_li_img {
        display: block;
        width: 165px;
        height: 96px;
    }

    .channel_img_ul_1_li_dot2 {
        height: 48px;
        line-height: 24px;
        color: #333;
        font-size: 18px;
        margin-top: 15px;
    }
}

.channel_img_ul_1_li:nth-of-type(odd) {
    float: left;
}

.channel_img_ul_1_li:nth-of-type(even) {
    float: right;
}

.channel_img_ul_1_li_a {}

.channel_img_ul_1_li_a:hover .channel_img_ul_1_li_dot2 {
    color: #255590;
}

.channel_ul_5_a {
    height: 24px;
    line-height: 24px;
    color: #333;
    font-size: 18px;
    margin-bottom: 27px;

    &:hover {
        color: #255590;
    }
}

.channel_ul_5_a:nth-of-type(5n-4) {
    font-weight: bold;
}

.channel_img_ul_2 {
    .channel_img_ul_2_li {
        width: 220px;
    }

    .channel_img_ul_2_li:nth-of-type(odd) {
        float: left;
    }

    .channel_img_ul_2_li:nth-of-type(even) {
        float: right;
    }

    .channel_img_ul_2_li_a {}

    .channel_img_ul_2_li_img {
        display: block;
        width: 220px;
        height: 130px;
    }

    .channel_img_ul_2_li_dot1 {
        height: 24px;
        line-height: 24px;
        color: #333;
        font-size: 18px;
        margin-top: 20px;
        text-align: center;
    }

    .channel_img_ul_2_li_a:hover .channel_img_ul_2_li_dot1 {
        color: #255590;
    }
}

.channel_ul_6 {
    margin-top: 39px;

    .channel_ul_6_a {
        height: 24px;
        line-height: 24px;
        color: #333;
        font-size: 18px;
        margin-bottom: 25px;
        box-sizing: border-box;
        text-indent: 16px;
        position: relative;
    }

    .channel_ul_6_a::after {
        content: '';
        display: block;
        width: 4px;
        height: 4px;
        background: #255590;
        position: absolute;
        left: 0px;
        top: 10px;
        z-index: 11;
    }

    .channel_ul_6_a:nth-last-of-type(1) {
        margin-bottom: 11px;
    }

    .channel_ul_6_a:hover {
        color: #255590;
    }
}

.channel_4 {
    margin-top: 14px;
}

.channel_ul_7_a {
    height: 24px;
    line-height: 24px;
    color: #333;
    font-size: 18px;
    margin-bottom: 37px;
    box-sizing: border-box;
    text-indent: 16px;
    position: relative;

    &:hover {
        color: #255590;
    }
}

.channel_ul_7_a::after {
    content: '';
    display: block;
    width: 4px;
    height: 4px;
    background: #333;
    position: absolute;
    left: 0px;
    top: 10px;
    z-index: 11;
}

.channel_ul_7_a:nth-of-type(1) {
    font-weight: bold;
}

.channel_ul_7_a:hover::after {
    content: '';
    display: block;
    background: #255590;
}

.channel_img_big_5_ul {
    .channel_img_big_5_li {
        margin-bottom: 25px;
        overflow: hidden;
    }

    .channel_img_big_5_li_a {}

    .channel_img_big_5_li_img {
        display: block;
        width: 100%;
        height: 267px;
    }

    .channel_img_big_5_li_dot2 {
        height: 48px;
        color: #333;
        font-size: 18px;
        margin-top: 20px;
        line-height: 24px;
        font-weight: bold;
    }

    .channel_img_big_5_li_a:hover .channel_img_big_5_li_dot2 {
        color: #255590;
    }
}