body {
    background-color: #f0f4f4
}

.white {
    width: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    z-index: -2
}

nav {
    height: 80px;
    margin-bottom: 10px
}

nav .w {
    background-color: #1c76ea
}

nav .w>ul {
    height: 80px;
    padding: 0 22px
}

nav .w>ul>li {
    float: left;
    height: 80px;
    line-height: 80px;
    margin-right: 14px;
    position: relative
}

nav .w>ul>li>a {
    display: block;
    padding: 0 28px;
    font-size: 18px;
    color: #fff
}

nav .w ul li:hover {
    background-color: #5595eb
}

nav .w>ul>li:last-child {
    margin-right: 0
}

nav .w>ul>li.current {
    background-color: #5595eb
}

nav .w>ul>li.current::after {
    content: "";
    width: 2px;
    height: 16px;
    /* background-color: #fff; */
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%)
}

.nav_second {
    position: absolute;
    background: #fff;
    top: 80px;
    z-index: 2;
    width: 100%;
    box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.2);
    display: none;
}

nav ul>li:hover .nav_second {
    display: block;
}

.nav_second li {
    padding: 0 15px;
    box-sizing: border-box;
}

.nav_second a {
    display: block;
    font-size: 16px;
    text-align: center;
    line-height: 40px;
}

.nav_second a:hover {
    color: #fff
}

.topBanner {
    margin-bottom: 10px
}

.topBanner a {
    display: block
}

main .principal .breadcrumb {
    width: 820px;
    height: 40px;
    line-height: 40px;
    background-color: #fff;
    margin-bottom: 10px;
    padding-left: 20px;
    font-size: 14px;
    color: #4e4e4e
}

main .principal .breadcrumb a {
    font-size: 14px;
    color: #4e4e4e
}

main .principal>.content {
    width: 820px;
    background-color: #fff;
    margin-bottom: 10px;
    padding-bottom: 15px
}

main .principal>.content>.news,
main .principal>.content>.inference,
main .principal>.content>.list {
    padding: 0 20px;
}

main .principal>.content .titleList {
    height: 58px;
    border-bottom: 1px solid #ededed;
    position: relative
}

main .principal>.content .titleList li {
    line-height: 58px;
    float: left;
    padding-right: 15px;
    padding-left: 15px
}

main .principal>.content .titleList li a {
    font-size: 16px;
    color: #8195AE
}

main .principal>.content .titleList li a.current {
    color: #1B75E9;
    font-weight: 700
}

main .principal>.content .titleList li a:hover {
    color: #1B75E9
}


/*main .principal>.content .titleList li:nth-child(1)::before {
    content: "";
    width: 110px;
    height: 2px;
    background-color: #1B75E9;
    position: absolute;
    top: 0;
    left: -20px
}*/

main .principal>.content .news li {
    height: 150px;
    border-bottom: 1px solid #ededed;
    padding: 19px 0;
    padding-left: 10px
}

main .principal>.content .news li .pic {
    margin-right: 16px;
    overflow: hidden
}

main .principal>.content .news li .pic:hover img {
    transform: scale(1.1);
    transition: all 1s
}

main .principal>.content .news li .title {
    width: 100%;
    font-size: 18px;
    color: #333
}

main .principal>.content .news li .info {
    margin-top: 10px;
    display: block;
    height: 42px;
    overflow: hidden
}

main .principal>.content .news li .info:hover,
main .principal>.content .news li .title:hover {
    text-decoration: underline
}

main .principal>.content .news li .more {
    color: #8196af;
    position: relative;
    top: 15px
}

main .principal>.content .news li .more .icon_more {
    width: 11px;
    height: 11px;
    background-position: -120px -20px;
    position: absolute;
    right: -16px;
    top: 6px
}

main .principal>.content .news li .more:hover {
    color: #b3c0cf
}

main .principal>.content .news li .more:hover .icon_more {
    background-position: -139px -20px
}

main .principal>.content .inference {
    height: 77px
}

main .principal>.content .inference .title {
    font-size: 18px;
    color: #333;
    padding-top: 20px
}

main .principal>.content .inference .info {
    font-size: 14px;
    color: #656565;
    position: relative
}

main .principal>.content .inference .info .icon_info {
    width: 12px;
    height: 12px;
    background-position: -160px -20px;
    position: absolute;
    right: -16px;
    top: 5px
}

main .principal>.content .inference .more {
    color: #8196af;
    position: relative;
    margin-right: 40px
}

main .principal>.content .inference .more .icon_more {
    width: 11px;
    height: 11px;
    background-position: -120px -20px;
    position: absolute;
    right: -16px;
    top: 6px
}

main .principal>.content .inference .more:hover {
    color: #b3c0cf
}

main .principal>.content .inference .more:hover .icon_more {
    background-position: -139px -20px
}

main .principal>.content .list li {
    float: left;
    width: 240px;
    height: 150px;
    border: 1px solid #eee;
    border-radius: 4px;
    margin-right: 20px
}

main .principal>.content .list li a {
    display: block;
    text-align: center;
    padding-top: 18px
}

main .principal>.content .list li a .title {
    font-size: 16px;
    color: #8195AF;
    margin-bottom: 12px
}

main .principal>.content .list li a .icon_1 {
    width: 27px;
    height: 30px;
    background-position: -612px -138px;
    display: inline-block;
    margin-bottom: 12px
}

main .principal>.content .list li a .icon_2 {
    width: 29px;
    height: 29px;
    background-position: -650px -138px;
    display: inline-block;
    margin-bottom: 12px
}

main .principal>.content .list li a .icon_3 {
    width: 32px;
    height: 28px;
    background-position: -693px -138px;
    display: inline-block;
    margin-bottom: 12px
}

main .principal>.content .list li a .info {
    display: inline-block;
    width: 138px;
    height: 33px;
    font-size: 14px;
    color: #333
}

main .principal>.content .list li:hover {
    border: 1px solid #8196af
}

main .principal .content2 {
    width: 820px;
    background-color: #fff;
    margin-bottom: 10px;
    padding-bottom: 20px
}

main .principal .content2 .titleList {
    height: 58px;
    border-bottom: 1px solid #ededed;
    position: relative;
}

main .principal .content2 .titleList li {
    line-height: 58px;
    float: left;
    padding-right: 15px;
    padding-left: 15px;
}

main .principal .content2 .titleList li a {
    font-size: 16px;
    color: #8195AE
}

main .principal .content2 .titleList li a.current {
    font-weight: 700;
    color: #1B75E9
}

main .principal .content2 .titleList li a:hover {
    color: #1B75E9
}


/*main .principal .content2 .titleList li:nth-child(1)::before {
    content: "";
    width: 110px;
    height: 2px;
    background-color: #1B75E9;
    position: absolute;
    top: 0;
    left: 0
}*/


/*main .principal .content2 .titleList li:nth-child(2)::before {
    content: "";
    width: 110px;
    height: 2px;
    background-color: #1B75E9;
    position: absolute;
    top: 0;
    left: 110px
}*/

main .principal .content2 .b3_titleList {
    height: 58px;
    border-bottom: 1px solid #ededed;
    position: relative;
    /* padding: 0 20px */
}

main .principal .content2 .b3_titleList li {
    line-height: 58px;
    float: left;
    /* margin-right: 36px */
    padding-right: 15px;
    padding-left: 15px
}

main .principal .content2 .b3_titleList li a {
    font-size: 16px;
    color: #8195AE
}

main .principal .content2 .b3_titleList li a.current {
    font-weight: 700;
    color: #1B75E9
}

main .principal .content2 .b3_titleList li a:hover {
    color: #1B75E9
}

main .principal .content2 .b3_titleList li:nth-child(1)::before {
    content: "";
    width: 110px;
    height: 2px;
    background-color: #1B75E9;
    position: absolute;
    top: 0;
    left: 0
}

main .principal .content2 .lessonName {
    height: 46px;
    line-height: 46px;
    background-color: #f5f5f5;
    font-size: 24px;
    color: #333;
    padding-left: 20px
}

main .principal .content2 .b2_content {
    text-align: center;
    padding: 20px 20px 0 20px
}

main .principal .content2 .b2_content .pic {
    display: inline-block;
    overflow: hidden;
    margin-bottom: 20px
}

main .principal .content2 .b2_content .pic:hover img {
    transform: scale(1.1);
    transition: all 1s
}

main .principal .content2 .b2_content .content {
    text-align: left;
    font-size: 14px;
    line-height: 21px;
    color: #656565;
    padding: 20px 0;
    border-top: 1px solid #ededed;
    border-bottom: 1px solid #ededed
}

main .principal .content2 .b2_content .banners {
    display: block;
    margin-top: 20px
}

main .principal .content2 .b3_list {
    padding: 20px 30px
}

main .principal .content2 .b3_list li {
    width: 750px;
    min-height: 130px;
    margin: 20px 0;
    padding-bottom: 20px;
    border-bottom: 1px dashed #ccc
}

main .principal .content2 .b3_list li .video {
    display: inline-block;
    margin-right: 20px
}

main .principal .content2 .b3_list li .title {
    font-size: 18px;
    color: #1B75E9;
    margin-bottom: 12px;
    font-weight: 700
}

main .principal .content2 .b3_list li .content {
    float: left;
    width: 550px;
    font-size: 16px;
    line-height: 24px;
    color: #656565
}

main .principal .content2 .b3_list li:first-child {
    margin-top: 0
}

main .principal .content2 .b3_list li:last-child {
    margin-bottom: 0
}

main .principal .content2 .b3_banner {
    padding: 0 20px
}

main .principal .content2 .b4_list {
    padding: 20px 30px
}

main .principal .content2 .b4_list li {
    margin-bottom: 20px
}

main .principal .content2 .b4_list li .title {
    font-size: 18px;
    color: #8195AF;
    padding-bottom: 4px;
    border-bottom: 1px solid #eee;
    padding-left: 30px;
    position: relative
}

main .principal .content2 .b4_list li .title .icon_1 {
    width: 18px;
    height: 18px;
    background-position: -620px -180px;
    position: absolute;
    left: 0;
    top: 3px
}

main .principal .content2 .b4_list li .title .icon_2 {
    width: 18px;
    height: 18px;
    background-position: -650px -180px;
    position: absolute;
    left: 0;
    top: 3px
}

main .principal .content2 .b4_list li .title .icon_3 {
    width: 18px;
    height: 18px;
    background-position: -680px -180px;
    position: absolute;
    left: 0;
    top: 3px
}

main .principal .content2 .b4_list li .content {
    margin-top: 4px;
    font-size: 16px;
    line-height: 27px;
    color: #656565
}

main .principal .content2 .b4_banner {
    display: block;
    padding: 20px;
    position: relative
}

main .principal .content2 .b4_banner::before {
    content: "";
    height: 1px;
    width: 780px;
    background-color: #eee;
    position: absolute;
    top: 0
}

main .principal .b5_content {
    width: 820px;
    background-color: #fff;
    margin-bottom: 10px
}

main .principal .b5_content .b5_titleList {
    height: 58px;
    border-bottom: 1px solid #ededed;
    position: relative;
}

main .principal .b5_content .b5_titleList li {
    line-height: 58px;
    float: left;
    padding-right: 15px;
    padding-left: 15px;
}

main .principal .b5_content .b5_titleList li a {
    font-size: 16px;
    color: #8195AE
}

main .principal .b5_content .b5_titleList li a.current {
    color: #1B75E9;
    font-weight: 700
}

main .principal .b5_content .b5_titleList li a:hover {
    color: #1B75E9
}

main .principal .b5_content .tabBox {
    height: 86px;
    border-bottom: 1px solid #eee
}

main .principal .b5_content .tabBox ul {
    padding: 20px
}

main .principal .b5_content .tabBox ul li {
    float: left;
    font-size: 16px;
    color: #333;
    height: 46px;
    line-height: 46px;
    border: 1px solid #ccc;
    text-align: center;
    position: relative;
    cursor: pointer
}

main .principal .b5_content .tabBox ul li {
    text-indent: 15px
}

main .principal .b5_content .tabBox ul li.current {
    color: #1B75E9;
    border: 1px solid #1073ee;
    z-index: 2;
    font-weight: 700
}

main .principal .b5_content .info {
    padding: 20px;
    background: url(../images/b5_bg.png) no-repeat;
    background-position: center 30px
}

main .principal .b5_content .info>li {
    display: none
}

main .principal .b5_content .info>li .txt {
    font-size: 16px;
    line-height: 24px;
    color: #333;
    margin-bottom: 30px
}

main .principal .b5_content .info>li .divide .title {
    font-size: 14px;
    color: #879BB3;
    text-align: right;
    margin-bottom: 16px
}

main .principal .b5_content .info>li .divide ul {
    width: 320px;
    position: relative;
    left: 50px;
    margin-bottom: 30px
}

main .principal .b5_content .info>li .divide ul li {
    text-align: left;
    float: left;
    width: 160px;
    height: 36px;
    position: relative
}

main .principal .b5_content .info>li .divide ul li .diamonds1 {
    width: 11px;
    height: 9px;
    background-color: #F57F6F;
    position: absolute;
    left: -20px;
    top: 6px
}

main .principal .b5_content .info>li .divide ul li .diamonds2 {
    width: 11px;
    height: 9px;
    background-color: #7FA7CB;
    position: absolute;
    left: -20px;
    top: 6px
}

main .principal .b5_content .info>li .divide ul li .diamonds3 {
    width: 11px;
    height: 9px;
    background-color: #FDAF63;
    position: absolute;
    left: -20px;
    top: 6px
}

main .principal .b5_content .info>li .divide ul li .diamonds4 {
    width: 11px;
    height: 9px;
    background-color: #6FE3C9;
    position: absolute;
    left: -20px;
    top: 6px
}

main .principal .b5_content .info>li .list {
    margin-bottom: 20px
}

main .principal .b5_content .info>li .list li {
    height: 42px;
    line-height: 41px;
    border-bottom: 1px dashed #d2d9e3;
    font-size: 16px;
    color: #333
}

main .principal .b5_content .info>li.current {
    display: block
}

main .principal .e1_content {
    width: 820px;
    background-color: #fff;
    margin-bottom: 10px
}

main .principal .e1_content .e1_titleList {
    height: 58px;
    border-bottom: 1px solid #ededed;
    position: relative;
}

main .principal .e1_content .e1_titleList li {
    line-height: 58px;
    float: left;
    padding-right: 15px;
    padding-left: 15px
}

main .principal .e1_content .e1_titleList li a {
    font-size: 16px;
    color: #8195AE
}

main .principal .e1_content .e1_titleList li a.current {
    color: #1B75E9;
    font-weight: 700
}

main .principal .e1_content .e1_titleList li a:hover {
    color: #1B75E9
}


/*main .principal .e1_content .e1_titleList li:nth-child(1)::before {
    content: "";
    width: 110px;
    height: 2px;
    background-color: #1B75E9;
    position: absolute;
    top: 0;
    left: 0
}*/

main .principal .e1_content .e1_details {
    text-align: center;
    height: 194px
}

main .principal .e1_content .e1_details .title {
    /* display: inline-block; */
    font-size: 24px;
    color: #333;
    font-weight: 700;
    margin-top: 30px;
    margin-bottom: 10px;
    position: relative
}

main .principal .e1_content .e1_details .title .icon_fire {
    width: 12px;
    height: 16px;
    background-position: -373px -266px;
    position: absolute;
    /* right: -20px; */
    top: 6px
}

main .principal .e1_content .e1_details .info {
    margin-bottom: 40px
}

main .principal .e1_content .e1_details .info span {
    font-size: 14px;
    color: #8196af;
    position: relative;
    padding-left: 20px
}

main .principal .e1_content .e1_details .info span .icon_clock {
    width: 14px;
    height: 14px;
    background-position: -372px -241px;
    position: absolute;
    left: 0;
    top: 2px
}

main .principal .e1_content .e1_details .info span .icon_count {
    display: inline-block;
    width: 13px;
    height: 12px;
    background-position: -397px -241px;
    position: absolute;
    left: 0;
    top: 2px
}

main .principal .e1_content .e1_details .info span:first-child {
    margin-right: 20px
}

/* main .principal .e1_content .e1_details .info span:first-child::after {
    content: "";
    width: 1px;
    height: 12px;
    background-color: #8196af;
    position: absolute;
    right: -12px;
    top: 4px
} */

main .principal .e1_content .e1_details .download {
    display: inline-block;
    width: 160px;
    height: 46px;
    line-height: 46px;
    background-color: #1c76ea;
    text-align: center;
    font-size: 14px;
    color: #fff;
    border-radius: 4px;
    cursor: pointer
}

main .principal .e1_content .e1_details .download:hover {
    background-color: #458ff1
}

main .principal .e1_content .f1_list {
    width: 820px;
    background-color: #fff;
    padding-left: 30px;
    margin-bottom: 10px
}

main .principal .e1_content .f1_list .year {
    height: 70px;
    color: #333;
    font-size: 30px;
    font-weight: 900;
    padding-top: 24px;
    position: relative;
    left: -4px
}

main .principal .e1_content .f1_list .list {
    padding-left: 60px
}

main .principal .e1_content .f1_list .list li {
    width: 700px;
    height: 140px;
    margin-bottom: 20px;
    background-color: #f6f6f6;
    padding: 10px;
    position: relative
}

main .principal .e1_content .f1_list .list li .day {
    font-size: 24px;
    color: #333;
    position: absolute;
    left: -64px;
    font-weight: 700
}

main .principal .e1_content .f1_list .list li .month {
    font-size: 14px;
    color: #333;
    position: absolute;
    font-weight: 700;
    left: -30px;
    top: 20px
}

main .principal .e1_content .f1_list .list li a {
    display: block;
    position: relative
}

main .principal .e1_content .f1_list .list li a img {
    margin-right: 20px
}

main .principal .e1_content .f1_list .list li a .title {
    font-size: 18px;
    color: #333;
    font-weight: 700;
    margin-bottom: 22px
}

main .principal .e1_content .f1_list .list li a .info {
    width: 380px;
    height: 46px;
    font-size: 14px;
    color: #999;
    line-height: 21px;
    overflow: hidden;
    margin-bottom: 8px
}

main .principal .e1_content .f1_list .list li a .count {
    font-size: 14px;
    color: #99a9bd;
    margin-right: 14px;
    position: relative;
    padding-left: 28px
}

main .principal .e1_content .f1_list .list li a .count .icon_count {
    width: 18px;
    height: 14px;
    background-position: -720px -180px;
    position: absolute;
    left: 0;
    top: 3px
}

main .principal .e1_content .f1_list .list li a .icon_more {
    width: 6px;
    height: 30px;
    background-position: -774px -124px;
    position: absolute;
    right: 20px;
    top: 46px
}

main .principal .e1_content .f1_list .list li:hover {
    background-color: #fff;
    border: 1px solid #0f76ef
}

main .principal .e1_content .f1_list .list li:hover .icon_more {
    background-position: -790px -124px
}

main .principal .e1_content .f1_list .pagination {
    padding-top: 30px;
    height: 100px;
    position: relative;
    padding-left: 25px
}

main .principal .e1_content .f1_list .pagination li {
    float: left;
    width: 40px;
    line-height: 40px;
    height: 40px;
    text-align: center;
    background-color: #ededed;
    margin-right: 10px;
    border-radius: 4px
}

main .principal .e1_content .f1_list .pagination li a {
    display: block;
    color: #999
}

main .principal .e1_content .f1_list .pagination li:hover {
    background-color: #1b75e9
}

main .principal .e1_content .f1_list .pagination li:hover a {
    color: #fff
}

main .principal .e1_content .f1_list .pagination .active span {
    display: inline-block;
    width: 40px;
    line-height: 40px;
    height: 40px;
    text-align: center;
    background-color: #1b75e9;
    border-radius: 4px;
    color: #fff
}

main .principal .e1_content .f1_list .pagination::before {
    content: "";
    height: 1px;
    width: 780px;
    background-color: #ededed;
    position: absolute;
    top: 0;
    left: -10px
}

main .principal .e1_content>.list {
    padding: 16px 0 10px 19px
}

main .principal .e1_content>.list li {
    width: 788px;
    height: 108px;
    margin-bottom: 6px;
    padding: 14px 11px
}

main .principal .e1_content>.list li a {
    display: block
}

main .principal .e1_content>.list li a img {
    margin-right: 20px
}

main .principal .e1_content>.list li a .title {
    height: 20px;
    overflow: hidden;
    font-size: 16px;
    color: #333;
    font-weight: 700;
    position: relative;
    top: -5px
}

main .principal .e1_content>.list li a .info {
    margin-bottom: 4px
}

main .principal .e1_content>.list li a .info span {
    font-size: 14px;
    color: #8196af;
    position: relative;
    padding-left: 20px
}

main .principal .e1_content>.list li a .info span .icon_clock {
    width: 14px;
    height: 14px;
    background-position: -372px -241px;
    position: absolute;
    left: 0;
    top: 2px
}

main .principal .e1_content>.list li a .info span .icon_count {
    display: inline-block;
    width: 13px;
    height: 12px;
    background-position: -397px -241px;
    position: absolute;
    left: 0;
    top: 2px
}

main .principal .e1_content>.list li a .info span:first-child {
    margin-right: 20px
}

/* main .principal .e1_content>.list li a .info span:first-child::after {
    content: "";
    width: 1px;
    height: 12px;
    background-color: #8196af;
    position: absolute;
    right: -12px;
    top: 4px
} */

main .principal .e1_content>.list li a .content {
    width: 660px;
    font-size: 14px;
    line-height: 21px;
    height: 42px;
    overflow: hidden;
    color: #999
}

main .principal .e1_content>.list li:hover {
    background-color: #f6f6f6
}

main .principal .e1_content .pagination {
    padding-top: 30px;
    height: 100px;
    position: relative;
    padding-left: 100px
}

main .principal .e1_content .pagination li {
    float: left;
    width: 40px;
    line-height: 40px;
    height: 40px;
    text-align: center;
    background-color: #ededed;
    margin-right: 10px;
    border-radius: 4px;
    cursor: pointer;
}

main .principal .e1_content .pagination li a {
    display: block;
    color: #999
}

main .principal .e1_content .pagination li:hover {
    background-color: #1b75e9
}

main .principal .e1_content .pagination li:hover a {
    color: #fff
}

main .principal .e1_content .pagination .active span {
    display: inline-block;
    width: 40px;
    line-height: 40px;
    height: 40px;
    text-align: center;
    background-color: #1b75e9;
    border-radius: 4px;
    color: #fff
}

main .principal .e1_content .grey {
    width: 820px;
    height: 50px;
    line-height: 50px;
    background-color: #f6f6f6;
    padding: 0 30px
}

main .principal .e1_content .grey .day {
    font-size: 24px;
    font-weight: 900;
    color: #333;
    margin-right: 4px
}

main .principal .e1_content .grey .mouth {
    font-size: 14px;
    color: #333;
    font-weight: 700;
    position: relative;
    top: 4px
}

main .principal .e1_content .grey .count {
    font-size: 14px;
    color: #99a9bd;
    position: relative;
    top: 4px
}

main .principal .e1_content .grey .count .icon_count {
    width: 18px;
    height: 14px;
    background-position: -720px -180px;
    position: absolute;
    left: -26px;
    top: 18px
}

main .principal .e1_content .f1_details {
    width: 820px;
    background-color: #fff;
    padding: 0 20px;
    text-align: center
}

main .principal .e1_content .f1_details .title {
    line-height: 40px;
    font-size: 24px;
    text-align: center;
    color: #333;
    border-bottom: 1px solid #efefef
}

main .principal .e1_content .f1_details .content {
    text-align: left;
    padding: 20px 12px 0 12px;
    font-size: 14px;
    color: #333;
    line-height: 24px;
    margin-bottom: 30px
}

main .principal .e1_content .f1_details .praise {
    display: inline-block;
    width: 100px;
    height: 60px;
    background-color: #ffaa5b;
    border-radius: 35px;
    position: relative;
    padding-top: 36px;
    cursor: pointer;
    margin-bottom: 20px
}

main .principal .e1_content .f1_details .praise .icon_praise {
    width: 19px;
    height: 22px;
    background-position: -620px -290px;
    position: absolute;
    left: 40px;
    top: 10px
}

main .principal .e1_content .f1_details .praise .num {
    font-size: 14px;
    color: #fff
}

main .principal .e1_content .f1_details .praise.finish {
    background-color: #eee
}

main .principal .e1_content .f1_details .praise.finish .icon_praise {
    background-position: -660px -290px
}

main .principal .e1_content .f1_details .praise.finish .num {
    color: #999
}

main .principal .e1_content .f1_details .share {
    height: 62px;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee
}

main .principal .e1_content .f1_details .share .txt {
    margin-top: 10px;
    margin-right: 20px;
    position: relative
}

main .principal .e1_content .f1_details .share .txt::after {
    content: "";
    width: 1px;
    height: 16px;
    background-color: #ccc;
    position: absolute;
    right: -10px;
    top: 2px
}

main .principal .e1_content .f1_details .share ul {
    padding-top: 10px
}

main .principal .e1_content .f1_details .share ul li {
    float: left;
    margin-right: 10px
}

main .principal .e1_content .f1_details .share ul li a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: url(../images/sprite.png)
}

main .principal .e1_content .f1_details .share ul li .a1 {
    background-position: -611px -334px
}

main .principal .e1_content .f1_details .share ul li .a2 {
    background-position: -661px -334px
}

main .principal .e1_content .f1_details .share ul li .a3 {
    background-position: -711px -334px
}

main .principal .e1_content .f1_details .share ul li .a4 {
    background-position: -757px -334px
}

main .principal .e1_content .f1_details .updown {
    height: 100px
}

main .principal .e1_content .f1_details .updown ul li {
    height: 44px;
    line-height: 44px
}

main .principal .e1_content .f1_details .updown ul li span {
    float: left;
    font-size: 16px;
    color: #333;
    position: relative;
    margin-right: 28px
}

main .principal .e1_content .f1_details .updown ul li span:after {
    content: "";
    width: 1px;
    height: 16px;
    background-color: #ccc;
    position: absolute;
    right: -14px;
    top: 15px
}

main .principal .e1_content .f1_details .updown ul li .null {
    float: left;
    color: #ccc
}

main .principal .e1_content .f1_details .updown ul li a {
    color: #80a8cb;
    float: left
}

main .principal .e1_content .f1_details .updown ul li a:hover {
    text-decoration: underline
}

main .principal .e1_detailBox {
    width: 820px;
    min-height: 320px;
    margin-bottom: 10px;
    background-color: #fff;
    padding: 30px 20px
}

main .principal .e1_detailBox .title {
    font-size: 16px;
    color: #333;
    font-weight: 700;
    height: 26px;
    border-bottom: 1px solid #efefef;
    padding-bottom: 4px;
    box-sizing: content-box;
    position: relative
}

main .principal .e1_detailBox .title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    bottom: -1px;
    left: 0
}

main .principal .e1_detailBox .box {
    margin-top: 20px;
    padding: 12px;
    line-height: 28px;
    width: 100%;
    border: 1px solid #eee
}

main .principal .banner {
    width: 820px;
    height: 130px;
    background-color: #fff;
    padding: 20px;
    position: relative
}

main .principal .banner img {
    width: 100%
}

main .principal .banner .btn {
    display: inline-block;
    width: 220px;
    height: 60px;
    line-height: 60px;
    font-size: 20px;
    color: #fff;
    text-align: center;
    position: absolute;
    right: 40px;
    top: 34px;
    border: 2px solid #1162c8
}

main .principal .banner .btn:hover {
    border: 2px solid #fff;
    background-color: #fff;
    color: #629ef2;
    font-weight: 700
}

main .principal>.about {
    width: 820px;
    background-color: #fff;
    margin-bottom: 10px;
    padding: 20px
}

main .principal>.about>.title {
    font-size: 16px;
    color: #333;
    font-weight: 700;
    height: 26px;
    border-bottom: 1px solid #efefef;
    padding-bottom: 4px;
    box-sizing: content-box;
    position: relative
}

main .principal>.about>.title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    bottom: -1px;
    left: 0
}

main .principal>.about ul {
    padding-top: 20px
}

main .principal>.about ul li {
    float: left;
    width: 380px;
    height: 50px;
    line-height: 50px;
    background-color: #f6f6f6;
    margin-bottom: 20px;
    border-radius: 4px;
    padding-left: 12px
}

main .principal>.about ul li a {
    color: #333;
    display: inline-block;
    height: 50px;
    width: 350px;
    overflow: hidden
}

main .principal>.about ul li:hover {
    background-color: #fff;
    border: 1px solid #1475ed
}

main .principal>.about ul li:nth-child(2n+1) {
    margin-right: 20px
}

main .principal .expert {
    width: 820px;
    height: 596px;
    background-color: #fff;
    margin-bottom: 10px;
    padding: 20px
}

main .principal .expert>.title {
    font-size: 16px;
    color: #333;
    font-weight: 700;
    height: 26px;
    border-bottom: 1px solid #efefef;
    padding-bottom: 4px;
    box-sizing: content-box;
    position: relative
}

main .principal .expert>.title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    bottom: -1px;
    left: 0
}

main .principal .expert .form {
    padding-top: 30px;
    padding-left: 8px
}

main .principal .expert .form>li {
    width: 372px;
    height: 66px;
    float: left;
    margin-bottom: 20px;
    position: relative
}

main .principal .expert .form>li .item {
    font-size: 14px;
    color: #8196af;
    margin-bottom: 4px;
    font-weight: 700
}

main .principal .expert .form>li input {
    width: 372px;
    height: 46px;
    background-color: #f6f6f6;
    border-radius: 4px;
    font-size: 16px;
    color: #333;
    padding-left: 8px
}

main .principal .expert .form>li .verify {
    position: absolute;
    right: 0;
    top: 26px
}

main .principal .expert .form>li .get {
    width: 120px;
    height: 46px;
    background-color: #ffaa52;
    line-height: 46px;
    color: #fff;
    text-align: center;
    position: absolute;
    right: 0;
    top: 23px;
    border-radius: 4px;
    cursor: pointer
}

main .principal .expert .form>li .get:hover {
    background-color: #ff9c33
}

main .principal .expert .form>li .error {
    display: none;
    font-size: 14px;
    color: #f57f70;
    position: absolute;
    right: 8px;
    bottom: 10px;
    font-weight: 700
}

main .principal .expert .form>li .error2 {
    display: none;
    font-size: 14px;
    color: #f57f70;
    position: absolute;
    right: 130px;
    bottom: 10px;
    font-weight: 700
}

main .principal .expert .form>li:nth-child(2n+1) {
    margin-right: 20px
}

main .principal .expert .form .textarea {
    width: 766px;
    height: 170px
}

main .principal .expert .form .textarea textarea {
    width: 766px;
    height: 150px;
    background-color: #f6f6f6;
    border-radius: 4px;
    border: none;
    font-size: 16px;
    line-height: 24px;
    color: #333;
    padding: 8px;
    font-family: "微软雅黑"
}

main .principal .expert .form .select .selectS>li {
    float: left;
    width: 181px;
    height: 66px;
    position: relative
}

main .principal .expert .form .select .selectS>li>div:nth-child(2) {
    width: 181px;
    height: 46px;
    background-color: #f6f6f6;
    border-radius: 4px;
    position: relative;
    padding-left: 8px
}

main .principal .expert .form .select .selectS>li>div:nth-child(2) .txt {
    height: 46px;
    line-height: 44px
}

main .principal .expert .form .select .selectS>li>div:nth-child(2) .icon_down {
    width: 13px;
    height: 8px;
    background-position: -195px 0;
    position: absolute;
    right: 10px;
    top: 20px;
    cursor: pointer
}

main .principal .expert .form .select .selectS>li>div:nth-child(2).open {
    background-color: #fff;
    border: 1px solid #1c76ea
}

main .principal .expert .form .select .selectS>li>div:nth-child(2).open .icon_down {
    background-position: -195px -10px
}

main .principal .expert .form .select .selectS>li .list {
    display: none;
    width: 180px;
    height: 185px;
    position: absolute;
    left: 0;
    top: 50px;
    border: 1px solid #ccd4dc;
    border-radius: 4px;
    z-index: 2;
    overflow: auto
}

main .principal .expert .form .select .selectS>li .list li {
    background-color: #fff;
    height: 38px;
    line-height: 38px;
    color: #333;
    padding-left: 10px
}

main .principal .expert .form .select .selectS>li .list li:hover {
    background-color: #f5f6f9;
    color: #1B75E9
}

main .principal .expert .form .select .selectS>li .list li.current {
    background-color: #f5f6f9;
    color: #1B75E9
}

main .principal .expert .form .select .selectS li:first-child {
    margin-right: 10px
}

main .principal .expert .submit {
    display: inline-block;
    width: 766px;
    height: 46px;
    line-height: 44px;
    text-align: center;
    font-size: 16px;
    color: #8196af;
    border: 1px solid #efefef;
    border-radius: 4px;
    margin-left: 8px;
    font-weight: 700;
    cursor: pointer
}

main .principal .expert .submit:hover {
    border: 1px solid #1c76ea;
    color: #1c76ea
}

main .principal .searchBox {
    background-color: #fff;
    margin-bottom: 10px
}

main .principal .searchBox>.title {
    height: 58px;
    line-height: 58px;
    padding-left: 20px;
    position: relative
}

main .principal .searchBox>.title .txt {
    font-size: 20px;
    color: #1c76ea;
    font-weight: 700;
    position: relative
}

main .principal .searchBox>.title .txt::after {
    content: "";
    width: 6px;
    height: 20px;
    background-color: #ffaa5b;
    position: absolute;
    right: -20px;
    top: 5px
}

main .principal .searchBox>.title .result {
    font-size: 14px;
    color: #8196af;
    margin-right: 10px
}

main .principal .searchBox .list {
    padding: 20px 30px
}

main .principal .searchBox .list li {
    width: 750px;
    height: 62px;
    margin-bottom: 20px
}

main .principal .searchBox .list li a {
    display: block
}

main .principal .searchBox .list li a .title {
    width: 750px;
    height: 20px;
    overflow: hidden;
    font-size: 16px;
    color: #333;
    margin-bottom: 4px;
    font-weight: 700
}

main .principal .searchBox .list li a .content {
    height: 42px;
    overflow: hidden;
    font-size: 14px;
    line-height: 21px;
    color: #999
}

main .principal .searchBox .list li a:hover .content,
main .principal .searchBox .list li a:hover .title {
    text-decoration: underline
}

main .principal .searchBox .pagination {
    padding-top: 30px;
    height: 100px;
    position: relative;
    padding-left: 116px
}

main .principal .searchBox .pagination li {
    float: left;
    width: 40px;
    line-height: 40px;
    height: 40px;
    text-align: center;
    background-color: #ededed;
    margin-right: 10px;
    border-radius: 4px
}

main .principal .searchBox .pagination li a {
    display: block;
    color: #999
}

main .principal .searchBox .pagination li:hover {
    background-color: #1b75e9
}

main .principal .searchBox .pagination li:hover a {
    color: #fff
}

main .principal .searchBox .pagination .active span {
    display: inline-block;
    width: 40px;
    line-height: 40px;
    height: 40px;
    text-align: center;
    background-color: #1b75e9;
    border-radius: 4px;
    color: #fff
}

main .principal .searchBox .pagination::before {
    content: "";
    height: 1px;
    width: 780px;
    background-color: #ededed;
    position: absolute;
    top: 0;
    left: 20px
}

main aside .skip {
    width: 270px;
    height: 321px;
    background-color: #fff;
    margin-bottom: 10px;
    padding: 0 20px
}

main aside .skip .title {
    height: 46px;
    font-size: 16px;
    color: #333;
    border-bottom: 1px solid #ededed;
    position: relative;
    padding-top: 16px
}

main aside .skip .title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    left: 0;
    bottom: -1px
}

main aside .skip .list {
    margin-top: 20px
}

main aside .skip .list li {
    width: 230px;
    height: 46px;
    line-height: 46px;
    background-color: #f5f5f5;
    margin-bottom: 16px;
    border-radius: 4px;
    padding-left: 10px
}

main aside .skip .list li a {
    display: block;
    font-size: 16px;
    color: #333
}

main aside .skip .list li:hover {
    background-color: #fff;
    border: 1px solid #1475ee
}

main aside .contact {
    width: 270px;
    mih-eight: 290px;
    background-color: #fff;
    padding: 0 20px;
    padding-bottom: 12px;
    margin-bottom: 10px
}

main aside .contact .title {
    height: 46px;
    font-size: 16px;
    color: #333;
    border-bottom: 1px solid #ededed;
    position: relative;
    padding-top: 16px
}

main aside .contact .title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    left: 0;
    bottom: -1px
}

main aside .contact .cityBtn {
    width: 230px;
    height: 46px;
    line-height: 46px;
    padding-left: 10px;
    background-color: #f5f5f5;
    border-radius: 4px;
    margin-top: 20px;
    font-size: 16px;
    color: #333;
    position: relative;
    cursor: pointer;
    margin-bottom: 10px
}

main aside .contact .cityBtn .icon_down {
    width: 9px;
    height: 5px;
    background-position: -170px 0;
    position: absolute;
    top: 22px;
    right: 20px
}

main aside .contact .cityBtn .cityList {
    display: none;
    width: 230px;
    height: 162px;
    background-color: #fff;
    position: absolute;
    left: 0;
    top: 55px;
    z-index: 2;
    border-radius: 4px;
    box-sizing: content-box;
    box-shadow: 4px 4px 4px #f5f5f5, -4px 0 4px #f5f5f5, 0 -4px 4px #f5f5f5
}

main aside .contact .cityBtn .cityList li {
    padding-left: 10px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    color: #333
}

main aside .contact .cityBtn .cityList li:hover {
    color: #4f8ded
}

main aside .contact .cityBtn.open {
    background-color: #fff;
    color: #2b7feb;
    border: 1px solid #2b7feb
}

main aside .contact .cityBtn.open .icon_down {
    background-position: -180px 0
}

main aside .contact .infoList>li {
    display: none
}

main aside .contact .infoList>li ul {
    padding-top: 14px;
    border-top: 1px solid #eee
}

main aside .contact .infoList>li ul li {
    line-height: 30px;
    font-size: 14px;
    color: #333;
    position: relative;
    padding-left: 56px
}

main aside .contact .infoList>li ul li span {
    position: absolute;
    left: 0;
    top: 0
}

main aside .contact .infoList>li.current {
    display: block
}

main aside .hot {
    width: 270px;
    height: 320px;
    padding: 0 20px;
    background-color: #fff
}

main aside .hot .title {
    height: 46px;
    font-size: 16px;
    color: #333;
    border-bottom: 1px solid #ededed;
    position: relative;
    padding-top: 16px
}

main aside .hot .title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    left: 0;
    bottom: -1px
}

main aside .hot .list {
    padding-top: 20px
}

main aside .hot .list li {
    width: 230px;
    height: 46px;
    line-height: 46px;
    background-color: #f6f6f6;
    margin-bottom: 16px;
    padding-left: 10px;
    position: relative
}

main aside .hot .list li a {
    display: inline-block;
    width: 200px;
    height: 46px;
    overflow: hidden;
    font-size: 16px;
    color: #333
}

main aside .hot .list li:nth-child(1) i {
    font-size: 14px;
    color: #fff;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    border-radius: 50%;
    background-color: #f4523b;
    position: absolute;
    left: -10px;
    top: -10px
}

main aside .hot .list li:nth-child(2) i {
    font-size: 14px;
    color: #fff;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    border-radius: 50%;
    background-color: #ffaa5b;
    position: absolute;
    left: -10px;
    top: -10px
}

main aside .hot .list li:nth-child(3) i {
    font-size: 14px;
    color: #fff;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    border-radius: 50%;
    background-color: #6594f2;
    position: absolute;
    left: -10px;
    top: -10px
}

main aside .rank {
    height: 568px;
    width: 270px;
    background-color: #fff;
    margin-bottom: 10px;
    padding: 0 20px
}

main aside .rank .title {
    height: 46px;
    font-size: 16px;
    color: #333;
    border-bottom: 1px solid #ededed;
    position: relative;
    padding-top: 16px
}

main aside .rank .title .icon_rank {
    width: 32px;
    height: 29px;
    background-position: -711px -286px;
    position: absolute;
    left: 86px;
    top: 10px
}

main aside .rank .title::after {
    content: "";
    width: 40px;
    height: 1px;
    background-color: #1B75E9;
    position: absolute;
    left: 0;
    bottom: -1px
}

main aside .rank ul {
    padding-top: 20px
}

main aside .rank ul li {
    width: 230px;
    height: 46px;
    line-height: 46px;
    margin-bottom: 16px;
    background-color: #f6f6f6;
    padding-left: 12px;
    border-radius: 4px;
    position: relative
}

main aside .rank ul li a {
    /* display: block; */
    width: 200px;
    height: 46px;
    overflow: hidden;
    color: #333
}

main aside .rank ul li i {
    position: absolute
}

main aside .rank ul li .icon_num1 {
    width: 16px;
    height: 26px;
    left: 8px;
    top: -12px;
    background-position: -50px -300px
}

main aside .rank ul li .icon_num2 {
    width: 22px;
    height: 26px;
    background-position: -80px -300px;
    left: 5px;
    top: -12px
}

main aside .rank ul li .icon_num3 {
    width: 20px;
    height: 26px;
    background-position: -110px -300px;
    left: 5px;
    top: -12px
}

main aside .rank ul li .icon_num4 {
    width: 21px;
    height: 26px;
    background-position: -140px -300px;
    left: 4px;
    top: -12px
}

main aside .rank ul li .icon_num5 {
    width: 21px;
    height: 26px;
    background-position: -170px -300px;
    left: 5px;
    top: -12px
}

main aside .rank ul li .icon_num6 {
    width: 19px;
    height: 26px;
    background-position: -200px -300px;
    left: 5px;
    top: -12px
}

main aside .rank ul li .icon_num7 {
    width: 22px;
    height: 26px;
    background-position: -230px -300px;
    left: 5px;
    top: -12px
}

main aside .rank ul li .icon_num8 {
    width: 22px;
    height: 26px;
    background-position: -260px -300px;
    left: 5px;
    top: -12px
}

main aside .rank ul li:hover {
    border: 1px solid #1073ee;
    background-color: #fff
}

footer {
    height: 183px
}

footer .w div {
    color: #333
}

footer .w>div:nth-child(1) {
    padding-top: 54px;
    font-size: 20px
}

footer .w>div:nth-child(2) {
    font-size: 14px;
    margin-bottom: 10px
}

footer .w>div:nth-child(3) {
    font-weight: 700;
    font-size: 14px;
    line-height: 21px
}

.mask {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    background: rgba(0, 0, 0, .6);
    display: none
}

.videoBox {
    display: none;
    width: 600px;
    height: 470px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    background-color: #fff
}

.mask_box {
    display: none;
    width: 600px;
    height: 470px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    background-color: #fff;
    padding: 0 20px
}

.mask_box .title {
    text-align: center;
    height: 90px;
    line-height: 90px;
    font-size: 20px;
    color: #656565;
    border-bottom: 1px solid #dfe8f1;
    font-weight: 700;
    position: relative
}

.mask_box .title .close {
    background: url(../images/sprite.png);
    width: 13px;
    height: 13px;
    background-position: -660px -110px;
    position: absolute;
    right: 0;
    top: 18px;
    cursor: pointer
}

.mask_box .title .close:hover {
    background-position: -680px -110px
}

.mask_box ul {
    padding-left: 30px;
    padding-top: 34px
}

.mask_box ul li {
    margin-bottom: 20px;
    position: relative;
    width: 500px
}

.mask_box ul li input {
    width: 500px;
    height: 46px;
    background-color: #f5f5f5;
    border-radius: 4px;
    font-size: 16px;
    padding-left: 20px
}

.mask_box ul li input::-webkit-input-placeholder {
    color: #91a0ae
}

.mask_box ul li input:-moz-placeholder {
    color: #91a0ae
}

.mask_box ul li input::-moz-placeholder {
    color: #91a0ae
}

.mask_box ul li input:-ms-input-placeholder {
    color: #91a0ae
}

.mask_box ul li .verify {
    position: absolute;
    right: 0;
    top: 3px
}

.mask_box ul li .get {
    width: 160px;
    height: 46px;
    background-color: #ffaa52;
    line-height: 46px;
    color: #fff;
    text-align: center;
    position: absolute;
    right: 0;
    top: 0;
    border-radius: 4px;
    cursor: pointer
}

.mask_box ul li .error {
    display: none;
    font-size: 14px;
    color: #F47F6F;
    position: absolute;
    right: 20px;
    top: 14px
}

.mask_box ul li .error2 {
    display: none;
    font-size: 14px;
    color: #F47F6F;
    position: absolute;
    right: 170px;
    top: 14px
}

.mask_box .btn {
    width: 500px;
    height: 46px;
    line-height: 44px;
    text-align: center;
    font-size: 16px;
    color: #1B75E9;
    border: 1px solid #eee;
    margin-left: 30px;
    cursor: pointer;
    font-weight: 700
}

.mask_box .btn:hover {
    border: 2px solid #1B75E9
}

.active_line2 {
    width: 95px;
    height: 2px;
    background-color: #1B75E9;
    position: absolute;
    top: 0
}

.main {
    padding: 15px;
    box-sizing: border-box;
    min-height: 500px
}