html, body{
  min-width: 1400px;
}
body {
    background-color: #bcbcbc14;
}
* {
    font-size: 100%;
    margin: 0;
    padding: 0;
}
h1{
  font-size: 50px;
}
h2{
  font-size: 40px;
}
h3 {
  font-size: 30px;
}
h4 {
  font-size: 20px;
}
h5 {
  font-size: 10px;
}
a {
  color: black;
  text-decoration: none;
}
a:hover {
  color: rgb(96, 177, 253);;
}
span {
  font-size: 20px;
}
span:hover {
  color: rgb(96, 177, 253);
}
button {
  background-color: white;
  cursor: pointer;
}
ol, ul {
  list-style: none;
}

.top_page {
    width: 100%;
}
.background {
    position: fixed;
    width: 100%;
    overflow: hidden;
    inset: 0;
    top: -100px;
    z-index: -1;
    overflow: hidden;
    min-width: 1000px;
    background-image: url("../background.jpeg");
    background-size: 1590px auto;
}
.top {
    width: 100%;
    height: 550px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.other_li {
    margin: 0 10px;
    font-size: 14px;
}
.main_cover::after {
    content: "";
    position: absolute;
    top: 312px;
    width: 100%;
    height: 50px;
    background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, #e4f1ff 100%);  
    pointer-events: none;  
    backdrop-filter: blur(10px); /* 模糊效果 */  
}
.main {
    width: 100%;
    height: 900px;
}
.main_box {
    width: 100%;
}

.cont {
  width: 240px;
  height: 237px;
  margin: 4px;
}
.introduce {
    height: 68px;
}
.cont-button {
  display: block;
  background-color: white;
  width: 100%;
  height: 100%;
  border-radius: 4px;
}

.cont-img-box {
  overflow: hidden;
}

.cont-img {
  border-radius: 4px;
  width: 100%;
  height: 140px;
}

.sele_content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
/*下一页*/
.cta {
  display: flex;
  padding: 11px 33px;
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  font-size: 25px;
  color: white;
  background: #6225E6;
  transition: 1s;
  box-shadow: 6px 6px 0 black;
  transform: skewX(-15deg);
  border: none;
}

.cta:focus {
  outline: none;
}

.cta:hover {
  transition: 0.5s;
  box-shadow: 10px 10px 0 #FBC638;
}

.cta .second {
  transition: 0.5s;
  margin-right: 0px;
}

.cta:hover  .second {
  transition: 0.5s;
  margin-right: 45px;
}

.span {
  transform: skewX(15deg)
}

.second {
  width: 20px;
  margin-left: 30px;
  position: relative;
  top: 12%;
}

.one {
  transition: 0.4s;
  transform: translateX(-60%);
}

.two {
  transition: 0.5s;
  transform: translateX(-30%);
}

.cta:hover .three {
  animation: color_anim 1s infinite 0.2s;
}

.cta:hover .one {
  transform: translateX(0%);
  animation: color_anim 1s infinite 0.6s;
}

.cta:hover .two {
  transform: translateX(0%);
  animation: color_anim 1s infinite 0.4s;
}

@keyframes color_anim {
  0% {
    fill: white;
  }

  50% {
    fill: #FBC638;
  }

  100% {
    fill: white;
  }
}
.notice_ {
  padding: 10px;
  border-radius: 10px;
  background-color: #2f2727;
  font-size: 20px;
  color: white;
  position: fixed;
  z-index: 9999999999999999;
  top: calc(10% - 10px);
  left: calc(50% - 50px);
  text-align: center;
  animation: notice_display;
  animation-duration: 4s;
}
@keyframes notice_display {
    60% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}