html,
body,
div,
span,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
abbr,
address,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
samp,
small,
strong,
sub,
sup,
var,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  vertical-align: baseline;
  background: transparent;
  font-size: 16px;
}

#app {
  width: 1200px;
  margin: 0 auto;
  background: #f7faff;
  padding: 4rem 0 0 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  color: #222;
  min-height: 100vh;
  box-sizing: border-box;
  background: url('../img/upback.png') no-repeat center center;
  background-size: 100% 100%;
}

#app .twoback {
  width: 1200px;
  background: linear-gradient(to bottom,
      rgba(255, 255, 255, 0) 0%,
      rgba(243, 247, 255, 1) 100%);
}

#app .logos {
  width: 90%;
  margin: auto;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 2.5rem;
  margin-bottom: 4rem;
}

#app .logos img {
  display: inline-block;
}

#app .logos .logo1 {
  width: 8.125rem;
  object-fit: contain;
}

#app .logos .logo2 {
  width: 8.75rem;
  object-fit: contain;
}

#app .title {
  width: 90%;
  margin: auto;
  text-align: left;
  margin-bottom: 2.75rem;
}

#app .title h1 {
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  font-size: 4.75rem;
  color: #54519a;
}

#app .title h2 {
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 800;
  font-size: 7rem;
  color: #2b2b2b;
  letter-spacing: 2px;
  background: linear-gradient(90deg, #002f92, #54519a, #ab70b6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#app .title h3 {
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 800;
  font-size: 3.75rem;
  line-height: 6.75rem;
  color: #2b2b2b;
  background: linear-gradient(90deg, #002f92, #54519a, #ab70b6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#app .title h4 {
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: bold;
  font-size: 1.75rem;
  color: #333333;
  line-height: 5rem;
}

#app .detail {
  width: 97%;
  margin: auto;
  margin-bottom: 2rem;
}

#app .detail .detail-box {
  background: linear-gradient(to bottom,
      rgba(255, 255, 255, 0.52) 60%,
      rgba(255, 255, 255, 0) 100%);
  border-radius: 18px;
  padding: 3rem;
  width: 100%;
  box-sizing: border-box;
}

#app .detail .detail-box .detail-title {
  position: relative;
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: bold;
  font-size: 3rem;
  color: #222222;
  text-align: center;
  margin-bottom: 5rem;
  letter-spacing: 0.5rem;
}

#app .detail .detail-box .detail-title::before {
  border-radius: 2px;
  bottom: -1rem;
  content: '';
  height: 0.375rem;
  left: 50%;
  position: absolute;
  right: 0;
  transform: translateX(-55%);
  width: 7rem;
  background: linear-gradient(90deg, #002f92, #54519a, #ab70b6);
  color: transparent;
}

#app .detail .detail-box .detail-content {
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 400;
  color: #222222;
}

#app .detail .detail-box .detail-content p {
  font-size: 1.8rem;
  line-height: 2.7rem;
  margin-bottom: 2rem;
}

#app .center {
  width: 87.5%;
  display: block;
  margin: auto;
  margin-top: -6.25rem;
}


#app .center .icon {
  width: 100%;
  text-align: right;
}

#app .center .icon img {
  width: 4rem;
}

#app .center .internal .video {
  width: 100%;
  height: 100%;
}

#app .center .internal {
  position: relative;
  width: 100%;
  height: 598px;
  /* height: 45.8vw; */
  border: 6px solid;
  box-sizing: border-box;
  border-image: radial-gradient(circle,
      rgba(0, 47, 146, 1),
      rgba(171, 112, 182, 1)) 6 6;
}

#app .center .internal img {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  cursor: pointer;
}

#app .center .fire {
  margin: auto;
  color: #54519a;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 10px 0 0 0;
  letter-spacing: 1px;
}

#app .center .fire img {
  width: 2.5rem;
  margin-right: 10px;
}

#app .bottom img {
  display: block;
  width: 100%;
  height: auto;
}

@media screen and (max-width: 1200px) {
  html {
    font-size: 13px;
  }

  #app {
    width: 100%;
    margin: 0 auto;
    background: #f7faff;
    padding: 4rem 0 0 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    color: #222;
    min-height: 100vh;
    box-sizing: border-box;
    background: url('../img/upback.png') no-repeat center center;
    background-size: 100% 100%;
  }

  #app .twoback {
    width: 100%;
    background: linear-gradient(to bottom,
        rgba(255, 255, 255, 0) 0%,
        rgba(243, 247, 255, 1) 100%);
  }

  #app .center .internal {
    position: relative;
    width: 100%;
    height: 49.8vw;
    border: 6px solid;
    box-sizing: border-box;
    border-image: radial-gradient(circle,
        rgba(0, 47, 146, 1),
        rgba(171, 112, 182, 1)) 6 6;
  }
}

@media screen and (max-width: 980px) {
  html {
    font-size: 11px;

  }
}

@media screen and (max-width: 820px) {
  html {
    font-size: 10px;

  }
}

@media screen and (max-width: 750px) {
  html {
    font-size: 9px;

  }
}

@media screen and (max-width: 680px) {
  html {
    font-size: 8px;
  }

  #app .center .internal {
    height: 50vw;
  }
}

@media screen and (max-width: 415px) {
  html {
    font-size: 5px;
  }

  #app .center .internal {
    height: 50.5vw;
  }


  #app .detail .detail-box .detail-content p {
    font-size: 13px;
    line-height: 19px;
    margin-bottom: 11px;
  }

  #app .detail .detail-box .detail-title {
    font-size: 19px;
    letter-spacing: 0.3rem;
  }


  #app .center .fire {
    font-size: 12px;
    letter-spacing: 0;
  }

  #app .center .fire img {
    width: 20px;
    margin-right: 0.625rem;
  }
}

@media screen and (max-width: 390px) {
  html {
    font-size: 4px;

  }

  #app .detail .detail-box .detail-title {
    font-size: 17px;
    letter-spacing: 0.3rem;
  }
}

@media screen and (max-width: 320px) {
  html {
    font-size: 3px;
  }

  #app .center .internal {
    height: 51vw;
  }

  #app .detail .detail-box .detail-title {
    font-size: 14px;
    letter-spacing: 0.3rem;
  }
}