.app-pc-bg {
  background: url("../images/app-bg.jpg") no-repeat;
  background-size: cover;
  width: 100%;
  min-height: 800px;
  margin-top: 10px;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.app-pc-left {
  margin-top: 200px;
}

.app-qrcode {
  position: relative;
  top: 10px;
  left: -50px;
  background-color: #fff;
  padding: 10px;
  border: 1px #eee solid;
  width: 150px;
  height: 150px;
  display: none;
  box-shadow:0px 2px 6px 0px rgba(0,0,0,0.3);
  border-radius: 4px;
}

.app-weixin-mask {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.9);
}
.app-weixin-mask > img {
  width: 80%;
  display: block;
  margin-left: auto;
}

.app-pc-title {
  font-size: 36px;
}

.app-btn-group {
  margin-top: 30px;
  display: flex;
  flex-direction: row;
  margin-left: -20px;
}
.app-btn-android,
.app-btn-ios {
  background-color: #78C357;
  color: #fff;
  width: 150px;
  height: 50px;
  line-height: 50px;
  display: block;
  background-image: url("../images/app-btn-android.png");
  background-repeat: no-repeat;
  background-size: 25px 30px;
  background-position: 15px center;
  padding-left: 50px;
  border-radius: 4px;
  box-shadow:0px 2px 6px 0px rgba(0,0,0,0.3);
  margin-left: 20px;
}
.app-btn-android:hover,
.app-btn-ios:hover {
  color: #fff;
  text-decoration: none;
}
.app-btn-ios {
  background-color: #010101;
  background-image: url("../images/app-btn-ios.png");
}
.app-btn-android:hover > .app-qrcode,
.app-btn-ios:hover > .app-qrcode {
  display: block;
}

.app-pc-screen {
  padding-top: 50px;
  margin-left: 50px;
}
.app-pc-info {
  margin-top: 30px;
  color: #aaa;
  font-size: 12px;
}



.app-mobile-bg {
  background: url("../images/app-mobile-bg.jpg") no-repeat;
  background-size: cover;
  width: 100vw;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}
.app-mobile-title {
  margin-top: 100px;
}
.app-mobile-screen {
  margin-top: 60px;
  margin-left: 20px;
}