html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
p,
iframe,
dl,
dt,
dd,
ul,
ol,
li,
pre,
form,
button,
input,
textarea,
th,
td {
  margin: 0;
  padding: 0;
}

@media screen and (min-width: 1200px) {
  .header .header_title {
    position: absolute;
    left: 120px;
    top: 200px;
    color: #fff;
    text-align: left;
    font-size: 100px;
    font-weight: 700;
    font-family: "Alimama ShuHeiTi";
  }

  .header .header_title span {
    color: #25b2ff;
  }
  .header .header_title .bottomLine {
    width: 423px;
    height: 22px;
    opacity: 1;
    background: #25b2ff;
    margin-top: 20px;
  }

  .header img {
    width: 100%;
  }

  .content-item {
    display: flex;
    background: #fff;
  }
  .w1200 {
    width: 1200px;
    margin: 0 auto;
    display: flex;
  }

  .content-item:nth-child(even) {
    background: #25b2ff;
  }
  .content-item:nth-child(even) .title {
    margin-top: 200px;
    display: flex;
    align-items: center;
    height: 100px;
  }

  .content-item:nth-child(even) .info {
    color: #fff;
    text-align: left;
    font-size: 18px;
    font-weight: 400;
    font-family: "Source Han Sans";
    line-height: 46px;
    width: 90%;
  }
  .content-item:nth-child(even) .subTitle {
    margin-top: 60px;
    display: flex;
    align-items: center;
    height: 44px;
    margin-bottom: 20px;
  }
  .content-item:nth-child(even) .subTitle div {
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 30px;
    font-weight: 500;
  }

  .content-item:nth-child(even) .title div {
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 44px;
    font-weight: 500;
    font-family: "Source Han Sans";
    margin-left: 24px;
  }

  .content-item:nth-child(even) .downloadLink {
    width: 230px;
    height: 76px;
    line-height: 76px;
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 32px;
    font-family: "Source Han Sans";
    border: 1px solid #fff;
    border-radius: 50px;
    margin-top: 30px;
    text-align: center;
    display: block;
    text-decoration: none;
  }

  .content-item:nth-child(even) .downloadLink:hover {
    background: #fff;
    color: #25b2ff;
    border: none;
  }

  .contentItemLeft {
    flex: 1.58;
    padding-bottom: 12px;
  }
  .contentItemRight {
    flex: 1;
    display: flex;
  }
  .appViewImage-1 {
    margin-top: 140px;
    margin-right: 20px;
    flex: 1;
  }
  .appViewImage-2 {
    margin-top: 50px;
    flex: 1;
  }
  .appViewImage-2 img {
    width: 280px;
    height: auto;
    border-radius: 20px;
    opacity: 1;

    margin-bottom: 20px;
  }

  .appViewImage-1 img {
    width: 280px;
    height: auto;
    border-radius: 20px;
    opacity: 1;

    margin-bottom: 20px;
  }

  .content .title .icon {
    width: 100px;
    height: 100px;
    background-size: cover;
  }
  .content .title .icon:hover {
    margin-bottom: 10px;
    background-size: cover;
  }
  .content .subTitle img {
    width: 44px;
    height: 44px;
  }

  .downloadLink {
    width: 230px;
    height: 76px;
    line-height: 76px;
    opacity: 1;
    color: #25b2ff;
    text-align: left;
    font-size: 32px;
    font-family: "Source Han Sans";
    border: 1px solid #346eff;
    border-radius: 50px;
    margin-top: 30px;
    text-align: center;
    display: block;
    text-decoration: none;
  }
  .downloadLink:hover {
    background: #26b3ff;
    color: #fff;
    border: none;
  }

  .downloadLink2 {
    width: 230px;
    height: 76px;
    line-height: 76px;
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 32px;
    font-family: "Source Han Sans";
    border: 1px solid #fff;
    border-radius: 50px;
    margin-top: 30px;
    text-align: center;
  }
  .downloadLink2:hover {
    background: #fff;
    color: #25b2ff;
    border: none;
  }
  .title {
    margin-top: 200px;
    display: flex;
    align-items: center;
    height: 100px;
  }
  .title div {
    opacity: 1;
    color: #3d3d3d;
    text-align: left;
    font-size: 44px;
    font-weight: 500;
    font-family: "Source Han Sans";
    margin-left: 24px;
  }

  .subTitle {
    margin-top: 60px;
    display: flex;
    align-items: center;
    height: 44px;
    margin-bottom: 20px;
  }
  .subTitle div {
    opacity: 1;
    color: #3d3d3d;
    text-align: left;
    font-size: 30px;
    font-weight: 500;
  }

  .info {
    color: #3d3d3d;
    text-align: left;
    font-size: 18px;
    font-weight: 400;
    font-family: "Source Han Sans";
    line-height: 46px;
    width: 90%;
  }

  .appViewImage-1 > img:hover {
    transform: scale(1.05);
  }
  .appViewImage-2 > img:hover {
    transform: scale(1.05);
  }

  .beian {
    text-align: center;
    font-size: 16px;
    margin: 20px 0;
  }

  .beian a {
    display: block;
    text-decoration: none;
  }
}

@media screen and (max-width: 1199px) {
  .header .header_title {
    position: absolute;
    top: 5rem;
    color: #fff;
    left: 2rem;
    text-align: left;
    font-size: 3rem;
    font-weight: 700;
    font-family: "Alimama ShuHeiTi";
  }

  .header .header_title span {
    color: #25b2ff;
  }
  .header .header_title .bottomLine {
    /* width: 20rem;
    height: 2rem;
    opacity: 1;
    background: #25b2ff;
    margin-top: 2rem; */
  }

  .header img {
    width: 100%;
  }

  .content-item {
    display: flex;
    background: #fff;
  }
  .w1200 {
    width: 100%;
    display: flex;
    flex-direction: column;
  }

  .content-item:nth-child(even) {
    background: #25b2ff;
  }
  .content-item:nth-child(even) .title {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    margin-left: 5%;
  }

  .content-item:nth-child(even) .info {
    color: #fff;
    text-align: left;
    font-size: 16px;
    font-weight: 400;
    font-family: "Source Han Sans";
    line-height: 22px;
    margin: 0 12px;
  }
  .content-item:nth-child(even) .subTitle {
    display: flex;
    align-items: center;
    height: 4.4rem;
    margin-bottom: 2rem;
    margin-left: 5%;
  }
  .content-item:nth-child(even) .subTitle div {
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 30px;
    font-weight: 500;
  }

  .content-item:nth-child(even) .title div {
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 2rem;
    font-weight: 500;
    font-family: "Source Han Sans";
    margin-left: 1rem;
  }

  .content-item:nth-child(even) .downloadLink {
    width: 10rem;
    height: 4rem;
    line-height: 4rem;
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 32px;
    font-family: "Source Han Sans";
    border: 1px solid #fff;
    border-radius: 5rem;
    margin-top: 3rem;
    text-align: center;
    display: block;
    text-decoration: none;
  }

  .content-item:nth-child(even) .downloadLink:hover {
    background: #fff;
    color: #25b2ff;
    border: none;
  }

  .contentItemLeft {
    flex: 1.58;
    padding: 12px;
  }
  .contentItemRight {
    flex: 1;
    display: flex;
    padding: 12px;
  }
  .appViewImage-1 {
    margin-top: 4rem;
    margin-right: 2rem;
    flex: 1;
  }
  .appViewImage-2 {
    margin-top: 0rem;
    flex: 1;
  }
  .appViewImage-2 img {
    width: 100%;
    height: auto;
    border-radius: 2rem;
    opacity: 1;
    margin-bottom: 2rem;
  }

  .appViewImage-1 img {
    width: 100%;
    height: auto;
    border-radius: 2rem;
    opacity: 1;
    margin-bottom: 2rem;
  }

  .content .title .icon {
    width: 10rem;
    height: 10rem;
    background-size: cover;
  }
  .content .title .icon:hover {
    margin-bottom: 1rem;
    background-size: cover;
  }
  .content .subTitle img {
    width: 2rem;
    height: 2rem;
  }

  .downloadLink {
    width: 10rem;
    height: 4rem;
    line-height: 4rem;
    opacity: 1;
    color: #25b2ff;
    text-align: left;
    font-size: 28px;
    font-family: "Source Han Sans";
    border: 1px solid #346eff;
    border-radius: 5rem;
    margin-top: 3rem;
    margin-left: 12px;
    text-align: center;
    display: block;
    text-decoration: none;
  }
  .downloadLink:hover {
    background: #26b3ff;
    color: #fff;
    border: none;
  }

  .downloadLink2 {
    width: 23rem;
    height: 7.6rem;
    line-height: 7.6rem;
    opacity: 1;
    color: #fff;
    text-align: left;
    font-size: 32px;
    font-family: "Source Han Sans";
    border: 1px solid #fff;
    border-radius: 5rem;
    margin-top: 3rem;
    text-align: center;
  }
  .downloadLink2:hover {
    background: #fff;
    color: #25b2ff;
    border: none;
  }
  .title {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    margin-left: 5%;
  }
  .title img {
    width: 4rem;
    height: auto;
  }
  .title div {
    opacity: 1;
    color: #3d3d3d;
    text-align: left;
    font-size: 2rem;
    font-weight: 500;
    font-family: "Source Han Sans";
    margin-left: 1rem;
  }

  .subTitle {
    display: flex;
    align-items: center;
    height: 4.4rem;
    margin-bottom: 2rem;
    margin-left: 5%;
  }
  .subTitle div {
    opacity: 1;
    color: #3d3d3d;
    text-align: left;
    font-size: 30px;
    font-weight: 500;
  }

  .info {
    color: #3d3d3d;
    text-align: left;
    font-size: 16px;
    font-weight: 400;
    font-family: "Source Han Sans";
    line-height: 22px;
    margin: 0 12px;
  }

  .appViewImage-1 > img:hover {
    transform: scale(1.05);
  }
  .appViewImage-2 > img:hover {
    transform: scale(1.05);
  }

  .beian {
    text-align: center;
    font-size: 16px;
    margin: 2rem 0;
  }

  .beian a {
    display: block;
    text-decoration: none;
  }
}