body {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: auto;
}
@media screen and (min-width: 750px) {
  body {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: auto;
  }
  .banner {
    width: 100%;
    min-width: 1200px;
  }
  .banner img {
    width: 100%;
  }
  .main__box {
    width: 100%;
    background-color: #fff;
  }
  .footer__box {
    width: 100%;
    background-color: #323442;
  }
  .footer {
    width: 1200px;
    margin: 0 auto;
    position: relative;
  }
  .footer .foot {
    width: 100%;
    height: 300px;
    background-color: #323442;
    padding-top: 60px;
    display: flex;
    align-items: center;
    flex-direction: column;
  }
  .footer .foot .logo {
    width: 280px;
    margin-bottom: 47px;
  }
  .footer .foot .menu {
    margin-bottom: 19px;
    color: #c1c2c6;
    display: flex;
    align-items: center;
  }
  .footer .foot .menu__item {
    display: flex;
    border: 1px solid #adadb3;
  }
  .footer .foot .menu__item:not(:first-child) {
    margin-left: 18px;
  }
  .footer .foot .menu__item__icon {
    padding: 14px;
    border-right: 1px solid #adadb3;
  }
  .footer .foot .menu__item__icon i {
    font-size: 16px;
    color: #fff;
  }
  .footer .foot .menu__item__text {
    padding: 14px;
    font-size: 14px;
    font-weight: 600;
    line-height: 20px;
  }
  .footer .foot p {
    margin-bottom: 13px;
    color: #a6a7ae;
    font-size: 14px;
    font-weight: normal;
    line-height: 20px;
  }
  .footer .foot span {
    font-size: 14px;
    font-weight: normal;
    line-height: 16px;
    color: #c0c1c5;
  }
  .list {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 2px solid #e7e7e7;
  }
  .list .li {
    text-align: center;
    padding: 37px 60px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease-out;
  }
  .list .li h4 {
    color: #4b4b4b;
    font-size: 18px;
    line-height: 18px;
    font-weight: bold;
    padding-bottom: 6px;
    transition: all 0.3s ease-out;
  }
  .list .li:hover h4 {
    color: #0093dd;
  }
  .list .li:hover::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .list .active {
    position: relative;
  }
  .list .active h4 {
    color: #0093dd;
  }
  .list .active::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .menu__box {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 2px solid #e7e7e7;
  }
  .menu__box .menu {
    width: 1200px;
    overflow-x: scroll;
    overflow-y: hidden;
    display: flex;
    /* 两个滚动条交接处 -- x轴和y轴 */
    /* 滚动条滑块 */
    /* 滚动条轨道 */
  }
  .menu__box .menu::-webkit-scrollbar {
    width: 20px;
    height: 10px;
  }
  .menu__box .menu::-webkit-scrollbar-corner {
    background-color: transparent;
  }
  .menu__box .menu::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
    background: #535353;
  }
  .menu__box .menu::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    background: #ededed;
  }
  .menu__box .menu a {
    flex-shrink: 0;
  }
  .menu__box .menu .li {
    text-align: center;
    padding: 37px 30px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease-out;
  }
  .menu__box .menu .li h4 {
    color: #4b4b4b;
    font-size: 18px;
    line-height: 18px;
    font-weight: bold;
    padding-bottom: 6px;
    transition: all 0.3s ease-out;
  }
  .menu__box .menu .li:hover h4 {
    color: #0093dd;
  }
  .menu__box .menu .li:hover::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .menu__box .menu .active {
    position: relative;
  }
  .menu__box .menu .active h4 {
    color: #0093dd;
  }
  .menu__box .menu .active::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .main {
    width: 1200px;
    margin: 0 auto;
  }
  .main .content {
    padding: 0.3rem 0;
  }
  .main .content__title {
    font-size: 16px;
    font-weight: bold;
  }
  .main .content__title i {
    color: #51575b;
    margin: 0 0.125rem;
  }
  .main .content__title a {
    color: #999999;
  }
  .main .content__title a:last-child {
    color: #004e9d;
  }
  .main .content__info {
    margin-top: 1.25rem;
    padding: 0.3rem;
  }
  .main .content .content__info section {
    font-family: arial, helvetica, sans-serif;
    color: #666666;
    line-height: 30px;
    font-size: medium;
    letter-spacing: 1px;
    text-align: justify;
    text-justify: inter-character;
  }
  .content__info img {
    margin: 0 auto !important;
    display: block !important;
  }
  .main .content__info h3 {
    font-size: 20px;
    font-weight: bold;
    color: #333333;
    text-align: center;
    margin-bottom: 0.6rem;
  }
  .main .content__footer .item {
    display: flex;
    align-items: center;
    margin-bottom: 0.15rem;
  }
  .main .content__footer .item:hover {
    color: #004e9d;
  }
  .main .content__footer .item i {
    margin-right: 0.3rem;
  }
}
@media screen and (max-width: 750px) {
  .banner {
    width: 100%;
  }
  .banner img {
    width: 100%;
    height: 4rem;
  }
  .main__box {
    width: 100%;
    background-color: #fff;
  }
  .list {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid #e7e7e7;
    padding: 0 0.2rem;
  }
  .list .li {
    text-align: center;
    padding: 0.4625rem 0.75rem;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease-out;
  }
  .list .li h4 {
    color: #4b4b4b;
    font-size: 18px;
    line-height: 18px;
    font-weight: bold;
    padding-bottom: 6px;
    transition: all 0.3s ease-out;
  }
  .list .li:hover h4 {
    color: #0093dd;
  }
  .list .li:hover::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .list .active {
    position: relative;
  }
  .list .active h4 {
    color: #0093dd;
  }
  .list .active::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }

  .menu__box {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 2px solid #e7e7e7;
  }
  .menu__box .menu {
    overflow-x: scroll;
    overflow-y: hidden;
    display: flex;
  }
  .menu__box .menu a {
    flex-shrink: 0;
  }
  .menu__box .menu .li {
    text-align: center;
    padding: 0.4625rem 0.375rem;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease-out;
  }
  .menu__box .menu .li h4 {
    color: #4b4b4b;
    font-size: 16px;
    font-weight: bold;
    padding-bottom: 6px;
    transition: all 0.3s ease-out;
  }
  .menu__box .menu .li:hover h4 {
    color: #0093dd;
  }
  .menu__box .menu .li:hover::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .menu__box .menu .active {
    position: relative;
  }
  .menu__box .menu .active h4 {
    color: #0093dd;
  }
  .menu__box .menu .active::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #0093dd;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
  .main {
    width: 100%;
  }
  .main .content {
    padding: 0.3rem 0;
  }
  .main .content__title {
    font-size: 16px;
    font-weight: bold;
    display: none;
  }
  .main .content__title i {
    color: #51575b;
    margin: 0 0.125rem;
  }
  .main .content__title a {
    color: #999999;
  }
  .main .content__title a:last-child {
    color: #004e9d;
  }
  .main .content__info {
    margin-top: 0.4rem;
    padding: 0.3rem;
    font-size: 16px;
  }
  .main .content__info h3 {
    font-size: 20px;
    font-weight: bold;
    color: #333333;
    text-align: center;
    margin-bottom: 0.3rem;
  }
  .main .content__footer {
    padding: 0.2rem;
  }
  .main .content__footer .item {
    display: flex;
    align-items: center;
    font-size: 16px;
    margin-bottom: 0.15rem;
  }
  .main .content__footer .item:hover {
    color: #004e9d;
  }
  .main .content__footer .item i {
    margin-right: 0.3rem;
  }
}
@keyframes animate {
  from {
    height: 0px;
    top: 400px;
  }
  to {
    height: 100%;
    top: 0px;
  }
}