.main {
  height: 100vh;
  display: flex;
  justify-content: center;
  background: #FBFBFB;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main {
    height: 100vh;
  }
}
.main .main_center {
  width: 556px;
  text-align: center;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center {
    width: 250px;
  }
}
.main .main_center .main_top {
  margin-top: 12rem;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_top {
    margin-top: 8.25rem;
  }
}
.main .main_center .main_top img {
  height: 280px;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_top img {
    width: 260px;
    /*height: 169px;*/
  }
}
.main .main_center .main_bottom .main_b_top {
  width: 365px;
  margin: auto;
  margin-top: 23px;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_bottom .main_b_top {
    width: 180px;
    margin-top: 2rem;
  }
}
.main .main_center .main_bottom .main_b_top .yi {
  /*font-size: 40px;*/
  font-size: 22px;
  font-weight: 700;
  font-family: Noto Sans SC, Noto Sans SC-Bold;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_bottom .main_b_top .yi {
    /*font-size: 36px;*/
    font-size: 22px;
  }
}
.main .main_center .main_bottom .main_b_top .bao {
  font-size: 20px;
  color: #585858;
  font-weight: 400;
  margin-top: 20px;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_bottom .main_b_top .bao {
    font-size: 18px;
    margin-top: 12px;
  }
}
.main .main_center .main_bottom .main_b_bottom {
  margin-top: 4vh;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_bottom .main_b_bottom {
    margin-top: 2.4rem;
  }
}
.main .main_center .main_bottom .main_b_bottom .button {
  width: 222px;
  height: 49px;
  background: #3d87f6;
  border-radius: 100px;
  color: #fff;
  font-size: 20px;
  font-weight: 400;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_bottom .main_b_bottom .button {
    height: 40px;
  }
}
.main .main_center .main_bottom .main_b_bottom a {
  color: #888B8D;
  font-size: 16px;
  margin-top: 12px;
  text-decoration: underline;
}
@media (min-width: 0px) and (max-width: 768px) {
  .main .main_center .main_bottom .main_b_bottom a {
    display: inline-block;
  }
}