* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #f0f2f5;
}

body::-webkit-scrollbar {
  display: none;
}

a {
  text-decoration: none;
}

.conts img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
}

.conts {
  width: 100%;
  margin: 0 auto;
}

.navs {
  position: fixed;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 100%;
  height: 0.52rem;
  max-width: 450px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99;
  background-color: #fff;
  font-size: 0.2rem;
  font-weight: bold;
  color: #333333;
}

.navs .Back {
  width: 0.12rem;
  position: absolute;
  left: 0.2rem;
  top: 46%;
  transform: translateY(-50%);
}