html {
  font-size: 10px;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei";
}

#top {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 1.3rem;
  background-image: url("../img/Header_01.png");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  z-index: 999;
}

.container {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  z-index: 0;
}

.kefu a {
  position: fixed;
  top: 10%;
  right: 2%;
  width: 1rem;
  height: 1.2rem;
  background-image: url("../img/btn_advisory.png");
  background-size: 100% 100%;
  z-index: 999;
}

.container .downBtn {
  /* fixed bottom center button */
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 3.7rem;
  height: 1rem;
  background-image: url("../img/btn_download.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  cursor: pointer;
  z-index: 999;
  display: block;
}

/* .downBtn img {
  width: 3.7rem;
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  right: 50%;
  margin-left: -1.85rem;
  height: 1rem;
  background-image: url("../img/btn_download.png");
  background-size: 100% 100%;
  z-index: 999;
} */

/* .container .downBtn {
  position: absolute;
  top: 41.5%;
  left: 30%;
  width: 55%;
  height: 1.2rem;
  background-image: url("../img/blue_install_btn.png");
  background-size: 80% 80%;
  background-repeat: no-repeat;
} */

.container .downNum {
  position: absolute;
  top: 49.6%;
  right: 37%;
  width: 2rem;
}

.bannerBox {
  position: absolute;
  left: 5%;
  top: 52%;
  width: 89%;
  height: 3.3rem;
}
.banner {
  margin: 0 auto;
  width: 90%;
  height: 100%;
  overflow: hidden;
}
.swiper-slide > img {
  width: 100%;
}

.container .footer {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 2rem;
  color: #ffffff;
}

.footer p {
  padding: 0;
  margin: 0;
}