html {
  max-width: 600px;
  margin: 0 auto;
}
body {
  margin: 0 auto;
  font-family: Arial, sans-serif;
  background-image: url("../images/bg2.jpg");
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-color: #fff;
}

.logo-warp {
  text-align: center;
  margin-top: 3.2rem;
}
.swiper-logo {
  width: 7.3rem;
  height: 3.1rem;
}

.top-tab {
  width: 35.2rem;
  height: 5.4rem;
  margin: 0 auto;
  margin-top: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 0.8rem;
  font-size: 1.8rem;
  background: url("../images/top-tab-bg.png") center/cover no-repeat;
}
.top-tab-l {
  width: 4.4rem;
  height: 4.4rem;
  margin-left: 1.2rem;
}
.top-tab-m {
  flex: 1;
  display: flex;
  align-items: center;
  color: #6b728d;
  font-size: 1.4rem;
}
.top-tab-m img {
  width: 0.5rem;
  height: 4rem;
  margin: 0 1.5rem;
}
.top-tab-r {
  width: 12rem;
  height: 3.7rem;
  margin-right: 2.4rem;
  background: url("../images/top-tab-r.png") center/cover no-repeat;
  position: relative;
}
.top-tab-hand {
  position: absolute;
  top: 0.5rem;
  right: -2rem;
  width: 4.4rem;
  height: 3.8rem;
}
.kefu-btn {
  position: absolute;
  top: 31rem;
  right: 0px;
  width: 12rem;
  height: 3.2rem;
}

.download-lines {
  position: absolute;
  top: 35rem;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 1.2rem;
}
.download-lines a {
  text-decoration: none;
  color: inherit;
}
.download-lines div {
  width: 10.2rem;
  height: 4.6rem;
  text-align: center;
  line-height: 4rem;
  background: url("../images/button_bg.png") center/cover no-repeat;
  font-size: 1.4rem;
  color: #fff;
}

.tabs {
  display: flex;
  justify-content: center;
  height: 3.6rem;
  width: 19rem;
  margin: 0 auto;
  padding: 0 4px;
  background-color: #0f9bff;
  border-radius: 1.8rem;
}

.tabs div {
  width: 9.6rem;
  height: 3.6rem;
  border-radius: 1.8rem;
  text-align: center;
  line-height: 3.6rem;
}

.steps-text {
  margin: 2rem 0;
  text-align: center;
  color: #5e7abf;
}

.steps-img {
  margin-left: 3.2rem;
  width: 30rem;
}

.swiper {
  width: 100%;
  padding: 3rem;
  box-sizing: border-box;
  position: relative;
}

.swiper-slide {
  padding: 0 2.4rem;
  box-sizing: border-box;
}

.swiper-slide img {
  width: 100%;
  object-fit: cover;
}
.andorid-tips {
  position: absolute;
  width: 30rem !important;
  height: auto;
  bottom: 14rem;
  left: 50%;
  transform: translateX(-50%);
}
.swiper-button-next,
.swiper-button-prev {
  width: 2.4rem;
  height: 2.4rem;
  background-size: 2.4rem 2.4rem;
}
.swiper-button-next:after,
.swiper-button-prev:after {
  font-size: 2.4rem !important;
}
.down-box {
  position: relative;
}

.course-link {
  text-align: center;
  margin-top: 0.2rem;
  font-size: 1.2rem;
  color: #00AAFF;
}
.course-link a {
  text-decoration: none; /* 去掉下划线 */
  color: #00AAFF;
}

.swiper-kefu {
  position: absolute;
  top: -13rem;
  right: 0px;
  width: 12rem;
  height: 3.2rem;
  z-index: 999;
}
.swiper-download-lines {
  width: 100%;
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 1.2rem;
}
.swiper-download-lines a {
  text-decoration: none;
  color: inherit;
}
.swiper-download-lines div {
  width: 10.2rem;
  height: 4.6rem;
  text-align: center;
  line-height: 4rem;
  background: url("../images/button_bg.png") center/cover no-repeat;
  font-size: 1.4rem;
  color: #fff;
}
.download_tip_box {
  position: relative;
}
.download_tip {
  position: absolute;
  top: -1.4rem;
  right: 1.3rem;
  width: 7.5rem;
  height: 3rem;
  z-index: 999;
}
.swiper-top-tab {
  top: 6rem;
}