/* banner */
.banner {
    overflow: hidden;
    position: relative;
    width: 100%;
    margin-top: 75px;
}
.banner img {
    width: 100%;
    height: 100%;
}
.banner .w {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%);
    height: 100%;
}
/*  banner页上的文字 */
.banner .w .banner-text {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
}
.banner .w .banner-text .banner-title {
    font-size: 64px;
}
.banner .w .banner-text .banner-title-describe {
    margin-top: 20px;
    font-size: 30px;
    font-weight: 100;
}
.banner .w .banner-text .banner-contain{
    margin-top: 30px;
    width: 422px;
    font-size: 14px;
    line-height: 1.5;
    letter-spacing: 0.5px;
    font-weight: 200;
}
.banner .w .banner-text .btn {
    margin-top: 60px;
}
.banner .w .banner-text .btn a {
    position: relative;
    float: left;
    display: block;
    width: 190px;
    height: 43px;
    color: #fff;
    text-align: center;
    line-height: 43px;
    font-size: 20px;
    background-color: #119cd3;
    border-radius: 6px;
}
.banner .w .banner-text .btn a:hover {
    background-color: #1088b8;
}
.banner .w .banner-text .btn .consult {
    margin-left: 18px;
}
.banner .w .banner-text .btn .consult::before,
.banner .w .banner-text .btn .free::before{
    display: inline-block;
    content: '';
    width: 24px;
    height: 24px;
    margin-right: 5px;
    vertical-align: middle;
}
.banner .w .banner-text .btn .consult::before{
    background: url(../img/product-icon.png) no-repeat center center;
}
.banner .w .banner-text .btn .free::before {
    background: url(../img/apply-icon.png) no-repeat center center;
}
/* banner上的图片 */
.banner .w .banner-pic {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
}
.banner .w .banner-pic img {
    width: 720px;
}
.banner .w .tips {
    position: absolute;
    bottom: 5px;
    right: 280px;
    color: #fff;
    font-size: 14px;
}
.banner .w .tips span {
    margin-right: 10px;
}
/* 内容区域 */
.contain {
}
/* 锚点 */
.contain .anchor {
    height: 75px;
}
.contain #wrong,
.contain #library,
.contain #task,
.contain #analysis {
    background-color: #f9f9f9;
}
.contain h2 {
    text-align: center;
    font-size: 40px;
}
.contain .product1 .product1-title {
    margin-top: 44px;
    font-size: 36px;
    color: #119cd3;
}
.contain>div p:nth-child(2) {
    margin-top: 15px;
}
.contain p {
    color: #444444;
    /*text-align: center;*/
    /*text-indent: 2em;*/
    line-height: 28px;
    margin-top: 40px;
}
.contain .describe {
    font-size: 18px;
    color: #444444;
}
.contain .product-title {
    margin-top: 44px;
    font-size: 36px;
    color: #119cd3;
}
/* 核心产品 */
.contain .product {
    overflow: hidden;
}
.contain .product h2 {
    margin-top: 60px;
}
.contain .product .introduction,
.contain .product .app-scenarios {
    margin-top: 20px;
    font-size: 18px;
    color: #444444;
    text-align: left;
}
.contain .product .app-scenarios {
    margin-top: 10px;
}
.contain .product .introduction i,
.contain .product .app-scenarios i{
    font-style: normal;
    font-weight: 700;
}
.contain .product .lis {
    width: 1115px;
    margin: 50px auto 100px;
}
.contain .product .lis li {
    float: left;
    width: 218px;
    height: 250px;
    font-size: 30px;
    text-align: center;
    color: #119cd3;
}
.contain .product .lis li >div {
    width: 100%;
    height: 200px;
}
.contain .product .lis li a {
    display: block;
    width: 100%;
    height: 100%;
    color: #119cd3;
}
.contain .product .lis li a:active {
    color: #119cd3;
}

/* 核心产品1 */
.contain .product1 {
    background-color: #f9f9f9;
}
.contain .product1 h2 {
    margin-top: 60px;
}
.contain .product1 .photo-search li{
    width: 332px;
    margin-left: 150px;
}
.contain .product1 .product-description{
    text-indent: 2em;
}
/* 核心产品2 */
.contain .product2 {
    background-color: #fff;
}
.contain .product2 .product-description{
    /*width: 1134px;*/
    /*margin: auto;*/
    text-indent: 2em;
}
.contain .product2 .evaluation li img {
    margin-bottom: 25px;
}
.contain .product2 .evaluation li:nth-child(2) {
    margin: 0 230px;
}
.contain .product2 h2{
    margin-top: 90px;
}

/* 核心产品3 */
.contain .product3 {
    background-color: #f9f9f9;
}
.contain .product3 h2{
    margin-top: 90px;
}
.contain .product3 .product-description{
    /*width: 792px;*/
    margin: auto;
}
.contain .product3 .wrong-book li {
    width: 206px;
    height: 250px;
    font-size: 30px;
}
.contain .product3 .wrong-book li:nth-child(2) {
    margin: 0 248px;
}
.contain .product3 .wrong-book li img{
    margin-bottom: 20px;
}
/* 其他功能 */
.contain .product4 {
    overflow: hidden;
    background-color: #fff;
}
.contain .product4 h2 {
    margin-top: 80px;
}
.contain .product4 .other-functions {
    width: 880px;
    position: relative;
    margin: 70px auto;
    text-align: center;
}
.contain .product4 .other-functions i {
    position: absolute;
    font-style: normal;
    color: #119cd3;
    font-size: 24px;
}
.contain .product4 .other-functions .ai-homework{
    margin: -25px 0 0 -312px;
}
.contain .product4 .other-functions .community-clock{
    top: 200px;
    right: 48px;
}
.contain .product4 .other-functions .question-volume{
    top: 453px;
    left: 120px;
}
.contain .product4 .other-functions .preparing-research{
    top: 453px;
    left: 656px;
}
.contain .product4 .other-functions .analysis-exam-situation{
    top: 200px;
    left: 0;
}
/* 年级-学科-版本 */
.contain .support {
    overflow: hidden;
    height: 510px;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
    background-color: #f9f9f9;
}
.contain .support .support-title {
    margin-top: 80px;
    text-align: center;
    font-size: 48px;
}
.contain .support ul {
    margin-top: 68px;
}
.contain .support li {
    float: left;
    text-align: center;
    width: 400px;
    height: 225px;
}
.contain .support li img {
    transition: all .5s;
}
.contain .support li img:hover {
    transform: scale(1.2);
}
.contain .support li h6 {
    margin-top: 30px;
    color: #119cd3;
    font-weight: 400;
    font-size: 26px;
}
.contain .support li p {
    width: 260px;
    margin: 15px auto 0;
    color: #333;
    font-size: 18px;
    line-height: 23px;
}

/*v2*/
.flex {
    display: flex;
}
.report-content {
    display: flex;
    flex-wrap: wrap;
}
.report-content .content-part-none {
    width: 570px;
}
.report-content .content-part-two {
    width: 570px;
    margin-left: 60px
}
.report-content .content-part-three {
    width: 1200px;
}

.report-content>div {
    display: inline-block;
    vertical-align: bottom;
}
.report-content>div p {
    color: #2FA2DD;
    margin: 26px 0 10px 0;
}
.contain .product .report-content .content-part-two ul {
    display: flex;
    justify-content: space-between;
}
.contain .product .report-content .content-part-two ul li {
    width: 146px;
    height: 292px;
    margin-right: 66px;
}
.contain .product .report-content .content-part-three {
    margin-bottom: 40px;
}
.contain .product .report-content .content-part-three ul {
    display: flex;
    justify-content: space-between;
}
.contain .product .report-content .content-part-three ul li {
    width: 166px;
    height: 260px;
    margin-right: 40px;
}
.contain .product .report-content .content-part-three ul li span {
    display: block;
    color: #444;
    text-align: center;
    margin-top: 8px;
}

.paper {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}
.paper p {
    color: #2FA2DD;
    margin: 26px 0 10px 0;
}
.paper .content-left {
    width: 570px;
}
.paper .content-right {
    width: 570px;
}
.paper .content-left img:nth-child(2),
.paper .content-right ul {
    margin-bottom: 20px;
}
.paper .content-right ul{
    height: 300px;
    display: flex;
    align-items: center;
}
.paper .content-right ul li span {
    display: block;
    color: #444;
    text-align: center;
}

.wrong-topic {
    width: 1200px;
    margin-bottom: 40px;
    justify-content: space-between;
    flex-wrap: wrap;
}
.wrong-topic p {
    color: #2FA2DD;
    margin: 26px 0 10px 0;
}
.wrong-topic .content-part-one,
.wrong-topic .content-part-two,
.wrong-topic .content-part-three,
.wrong-topic .content-part-four, {
    width: 570px;
}
.wrong-topic .content-part-three>span,
.wrong-topic .content-part-four>span {
    width: 570px;
    display: block;
    text-align: center;
    margin: 20px 0 0 0;
    line-height: 24px;
}
.wrong-topic .content-part-three>ul>li,
.wrong-topic .content-part-four>ul>li {
    margin-right: 66px;
}
.wrong-topic .content-part-three>ul>li:last-child,
.wrong-topic .content-part-four>ul>li:last-child {
    margin-right: 0;
}
.wrong-topic .content-part-five {
    width: 1200px;
}
.wrong-topic .content-part-five ul li{
    width: 166px;
    height: 270px;
    margin-right: 40px;
}
.wrong-topic .content-part-five ul li span {
    display: block;
    color: #444;
    text-align: center;
    margin-top: 8px;
}

.product4 {
    margin-bottom: 100px;
}
.net-school p {
    color: #2FA2DD;
    margin: 26px 0 10px 0;
}
.net-school ul li {
    margin-right: 65px;
}