.main {
    width: 100%;
    flex: 1;
  }
  .main .banner {
    width: 100%;
    height: 588px;
    position: relative;
    background-image: url("../assets/imgs/banner.jpg");
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  .main .banner .title {
    width: 1024px;
    font-weight: 500;
    font-size: 2.25rem;
    color: #FFFFFF;
    line-height: 60px;
    text-align: center;
  }
  .main .banner .search {
    margin-top: 55px;
    width: 1200px;
    height: 76px;
    background-color: #fff;
    border-radius: 8px;
    border: 1px solid #fff;
    display: flex;
    flex-direction: row;
  }
  .main .banner .search input {
    flex: 1;
    min-width: 0;
    height: 76px;
    font-size: 1.375rem;
    color: #000;
    border: none;
    outline: none;
    padding: 0 20px;
    box-sizing: border-box;
    border-radius: 8px 0px 0px 8px;
  }
  .main .banner .search .go {
    width: 122px;
    height: 76px;
    line-height: 76px;
    text-align: center;
    border-radius: 0px 8px 8px 0px;
    background-color: #0093D5;
    font-size: 1.375rem;
    color: #fff;
    border: none;
	  font-weight: bold;
  }
  .main .banner .next {
    width: 1200px;
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    margin-top: 14px;
  }
  .main .banner .next a {
    cursor: pointer;
    color: #fff;
    font-size: 1.5rem;
    font-weight:500;
  }
  .main .banner .total {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 24px;
    width: 1200px;
    padding: 10px 20px;
    box-sizing: border-box;
  }
  .main .banner .total-top {
    font-family: Verdana;
    font-weight: bold;
    font-size: 2.5rem;
    color: #FFFFFF;
  }
  .main .banner .total-bottom {
    font-family:"Segoe UI", Avenir, Helvetica, Arial, sans-serif;
    font-size: 1.5rem;
    color: #fff;
  }
  .main .content1 {
    width: 100%;
    height: 400px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    background-color: #fff;
  }
  .main .content1-center {
    width: 1200px;
    display: flex;
    flex-direction: row;
  }
  .main .content1-center .part {
    flex: 1;
    min-width: 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
  }
  .main .content1-center .part .row {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .main .content1-center .part .row-title {
    font-family: Cambria, Liberation Serif, Hoefler Text, Georgia, Times New Roman, Noto Serif, Liberation Serif;
    font-size: 1.625rem;
    color: #333;
    font-weight: bold;
    padding-bottom: 10px;
    box-sizing: border-box;
    position: relative;
  }
  .main .content1-center .part .row-title::after {
    display: block;
    content: "";
    width: 19px;
    height: 4px;
    background-color: #0093D5;
    position: absolute;
    bottom: 0;
    left: 0;
  }
  .main .content1-center .part .row-more {
    font-size: 0.875rem;
    color: #333333;
    text-decoration: underline;
    cursor: pointer;line-height: 32px;
  }
  .main .content1-center .part .desc {
    font-size: 1rem;
    color: #00587F;
    text-align: left;
    padding-left: 14px;
    position: relative;
  }
  .main .content1-center .part .desc::before {
    display: block;
    content: "";
    position: absolute;
    width: 8px;
    height: 2px;
    background-color: #0093D5;
    left: 0;
    top: 11px;
  }
  .main .content1-center .part .arrow {
    width: 10px;
    height: 18px;
  }
  .main .content1-center .part .demo_book {
    width: 155px;
    height: 208px;
  }
  .main .content1-center .part .demo_txt {
    font-size: 0.875rem;
    color: #000;
    text-align: left;
  }
  .main .main_title {
    font-family: Cambria, Liberation Serif, Hoefler Text, Georgia, Times New Roman, Noto Serif, Liberation Serif;
    font-size: 1.625rem;
    color: #333;
    font-weight: bold;
    padding-bottom: 10px;
    box-sizing: border-box;
    position: relative;
  }
  .main .main_title::after {
    display: block;
    content: "";
    width: 19px;
    height: 4px;
    background-color: #0093D5;
    position: absolute;
    bottom: 0;
    left: 0;
  }
  .main .content2 {
    width: 100%;
    height: 520px;
    background-color: #F6F6F6;
    position: relative;
  }
  .main .content2 .right_img {
    position: absolute;
    right: 0;
    top: 0;
    width: 777px;
    height: 520px;
    z-index: 9;
  }
  .main .content2 .top {
    width: 100%;
    height: 520px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 99;
  }
  .main .content2 .top-center {
    width: 1200px;
    height: 520px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
  }
  .main .content2 .top-center .topic {
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .main .content2 .top-center .topic img {
    width: 340px;
    height: 226px;
  }
  .main .content2 .top-center .topic p {
    font-size: 1.125rem;
    color: #00587F;
    margin-top: 16px;
    text-align: left;
  }
  .main .content2 .top-center .topic .jump {
    width: 16px;
    height: 12px;
    margin-top: 8px;
    cursor: pointer;
  }
  .main .content3 {
    width: 100%;
    height: 540px;
    background-color: #fff;
  }
  .main .content3-center {
    width: 1200px;
    height: 540px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: 0 auto;
  }
  .main .content3-center .head {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .main .content3-center .head-title {
    font-family: Cambria, Liberation Serif, Hoefler Text, Georgia, Times New Roman, Noto Serif, Liberation Serif;
    padding-bottom: 6px;
    box-sizing: border-box;
    font-size: 1.625rem;
    font-weight: bold;
    color: #333;
    position: relative;
  }
  .main .content3-center .head-title::after {
    display: block;
    content: "";
    width: 19px;
    height: 4px;
    background-color: #0093D5;
    position: absolute;
    bottom: 0;
    left: 0;
  }
  .main .content3-center .head-more {
    font-size: 0.875rem;
    color: #333333;
    text-decoration: underline;
    cursor: pointer;
  }
  .main .content3-center .list {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    padding: 40px 10px;
  }
  .main .content3-center .list-new {
    width: 380px !important;
    border-radius: 8px;
    height: 360px !important;
    padding: 20px 0;
    background: #FFFFFF;
    box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  .main .content3-center .list-new img {
    width: 340px;
    height: 226px;
  }
  .main .content3-center .list-new .day {
    display: inline-block;
    box-sizing: border-box;
    padding: 4px 8px;
    background-color: #0093D5;
    font-size: 1rem;
    color: #fff;
    margin-top: 10px;
  }
  .main .content3-center .list-new .intro {
    margin-top: 10px;
    width: 338px;
    font-size: 1.25rem;
    color: #000;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .main .content4 {
    width: 100%;
    height: 326px;
    background: #F0F0F0;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main .content4-back {
    position: absolute;
    width: 100%;
    text-align: center;
    line-height: 100%;
    font-size: 423px;
    color: rgba(192, 192, 192, 0.1);
    font-weight: bold;
    bottom: -100px;
  }
  .main .content4 .book_demo {
    width: 335px;
    height: 252px;
  }
  .main .content4 .bottom_info {
    display: flex;
    flex-direction: column;
    margin-left: 50px;
  }
  .main .content4 .bottom_info .info1 {
    font-weight: bold;
    font-size: 2.125rem;
    color: #333333;
  }
  .main .content4 .bottom_info .info2 {
    margin-left: 10px;
    margin-top: 20px;
    width: 570px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #0093D5;
    border-radius: 10px;
    cursor: pointer;
    color: #fff;
    z-index: 9999999999;
  }
  
  .high-contrast .banner .title {
    background-color: #002459;
  }
  .high-contrast .banner .search .go {
    background-color: #000000;
    color: #FFFF00;
  }
  .high-contrast .banner .next a {
    color: #FFFF00;
  }
  .high-contrast .banner .total {
    background-color: #2C2C2C;
  }
  .high-contrast .banner .total-top {
    color: #FFFF00;
  }
  .high-contrast .banner .total-bottom {
    color: #FFFF00;
  }
  .high-contrast .content1 {
    background-color: #000;
  }
  .high-contrast .content1-center .part .row-title {
    color: #fff;
  }
  .high-contrast .content1-center .part .row-title::after {
    background-color: #FFFF00;
  }
  .high-contrast .content1-center .part .row-more {
    color: #fff;
  }
  .high-contrast .content1-center .part .desc {
    color: #FFFF00;
  }
  .high-contrast .content1-center .part .desc::before {
    background-color: #FFFF00;
  }
  .high-contrast .content1-center .part .demo_txt {
    color: #FFFF00;
  }
  .high-contrast .main_title {
    color: #333;
  }
  .high-contrast .main_title::after {
    background-color: #000;
  }
  .high-contrast .content2 {
    background-color: #fff;
  }
  .high-contrast .content2 .top-center .topic {
    background-color: #292929;
  }
  .high-contrast .content2 .top-center .topic p {
    color: #fff;
  }
  .high-contrast .content3 {
    background-color: #666;
  }
  .high-contrast .content3-center .head-title {
    color: #fff;
  }
  .high-contrast .content3-center .head-title::after {
    background-color: #FFFF00;
  }
  .high-contrast .content3-center .head-more {
    color: #fff;
  }
  .high-contrast .content4 .bottom_info .info2 {
    background-color: #000;
    color: #FFFF00;
  }