.container {
  width: 100vw;
  height: 100vh;
  /* background: radial-gradient(#0aa, rgba(22, 22, 165, 0.8)); */
  /* background: radial-gradient(#999, #666); */
  position: relative;
  overflow: hidden;
}
.container .title {
  position: absolute;
  top: 0.36rem;
  left: 50%;
  z-index: 10;
  transform: translateX(-50%);
  font-size: 0.36rem;
  font-weight: bold;
  color: #E8AF51;
  text-align: center;
}
.container .introBox {
  width: 6.1rem;
  position: absolute;
  top: 1.5rem;
  bottom: 2.4rem;
  left: 50%;
  z-index: 10;
  transform: translateX(-50%);
  /* background-color: rgba(255,255,255,0.3); */
}
.container .introBox::after {
  display: block;
  content: ' ';
  width: 3.5rem;
  height: 1.5rem;
  position: absolute;
  bottom: -1.3rem;
  left: 50%;
  transform: translateX(-50%);
  background: url(../img/logo.png) center center / auto 80% no-repeat;
}
.container .introBox .text {
  width: 100%;
  height: 100%;
  position: absolute;
  overflow: hidden;
  overflow-y: auto;
  font-size: 0.26rem;
  line-height: 1.5;
  color: #E8AF51;
}
.container .introBox .text p {
  font-size: 0.26rem;
  line-height: 1.5;
  color: #E8AF51;
}
.container .viewBox {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.container .progress {
  width: 2rem;
  height: 2rem;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: center;
  align-items: center;
}
.container .progress svg {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}
.container .progress svg .percLen {
  transform: rotate(-90deg);
  transform-origin: center;
  stroke-dasharray: 0, 0;
}
.container .progress .percText {
  position: relative;
  color: #ffffff;
  font-size: 0.3rem;
}
.container .optTip {
  width: 100%;
  position: absolute;
  bottom: 2rem;
  left: 0;
  display: flex;
  justify-content: center;
}
.container .optTip li {
  height: 0.76rem;
  padding-left: 0.96rem;
  position: relative;
  background-size: 0.76rem 0.76rem;
  background-position: left center;
  background-repeat: no-repeat;
  font-size: 0.3rem;
  line-height: 0.76rem;
  color: rgba(255, 255, 255, 0.6);
}
.container .optTip li::after {
  display: block;
  content: ' ';
  height: 0.3rem;
  position: absolute;
  top: 0.23rem;
  right: -0.3rem;
  border-left: 0.03rem solid rgba(255, 255, 255, 0.6);
}
.container .optTip li:nth-child(1) {
  background-image: url(../img/tip_1.png);
}
.container .optTip li:nth-child(2) {
  margin: 0 0.6rem;
  background-image: url(../img/tip_2.png);
}
.container .optTip li:nth-child(3) {
  background-image: url(../img/tip_3.png);
}
.container .optTip li:nth-child(3)::after {
  display: none;
}
.container .periodBox {
  width: 100%;
  height: 0.6rem;
  position: absolute;
  bottom: 1rem;
  left: 0;
}
.container .periodBox::before {
  display: block;
  content: ' ';
  width: 100%;
  height: 0.04rem;
  position: absolute;
  top: 0.02rem;
  left: 0;
  background: linear-gradient(to right, transparent, #F3A844, transparent);
}
.container .periodBox ul {
  display: flex;
  justify-content: center;
  padding-top: 0.25rem;
}
.container .periodBox ul li {
  min-width: 1rem;
  height: 0.36rem;
  margin: 0 0.5rem;
  padding: 0 0.2rem;
  position: relative;
  font-size: 0.18rem;
  line-height: 0.36rem;
  text-align: center;
  color: #F3A844;
}
.container .periodBox ul li::before {
  display: block;
  content: ' ';
  width: 0.02rem;
  height: 0.16rem;
  position: absolute;
  top: -0.2rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: #F3A844;
}
.container .periodBox ul li.on {
  background: linear-gradient(to right, transparent, rgba(100, 80, 54, 0.9), transparent);
}
.container .periodBox ul li.on::after {
  display: block;
  content: ' ';
  width: 0.06rem;
  height: 0.06rem;
  position: absolute;
  top: -0.28rem;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  background-color: #000;
  border: 0.04rem solid #F3A844;
  border-radius: 0.04rem;
}
.container .materialBox {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 0.6rem;
  padding: 0 0.4rem;
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(to right, transparent, rgba(107, 107, 107, 0.8), transparent);
}
.container .desc {
  position: absolute;
  bottom: 2rem;
  /* left: 50%; */
  color: #F3A844;
  font-size: 16px;
  width: 100%;
  text-align: center;
  padding: 0 50px;

}
.container .materialBox span {
  margin: 0 0.1rem;
  font-size: 0.3rem;
  color: #F3A844;
}
.container .optBtns {
  width: 100%;
  position: absolute;
  bottom: 0.3rem;
  left: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
}
.container .optBtns .prev,
.container .optBtns .next {
  display: block;
  width: 0.5rem;
  height: 0.5rem;
  background-size: 0.35rem 0.48rem;
  background-position: center center;
  background-repeat: no-repeat;
  transition: all 0.2s ease-out 0s;
  cursor: pointer;
}
.container .optBtns .prev:active,
.container .optBtns .next:active {
  background-color: rgba(255, 255, 255, 0.1);
}
.container .optBtns .prev {
  background-image: url(../img/icon_3.png);
}
.container .optBtns .next {
  background-image: url(../img/icon_4.png);
}
.container .optBtns ul {
  margin: 0 1.5rem;
  display: flex;
  justify-content: center;
}
.container .optBtns ul li {
  width: 0.5rem;
  height: 0.5rem;
  margin: 0 0.05rem;
  background-size: 0.2rem 0.2rem;
  background-position: center center;
  background-repeat: no-repeat;
  background-image: url(../img/icon_1.png);
  transition: all 0.2s ease-out 0s;
  cursor: pointer;
}
.container .optBtns ul li.on {
  background-size: 0.32rem 0.32rem;
  background-image: url(../img/icon_2.png);
}
.container .resetControl {
  position: absolute;
  bottom: 2rem;
  left: 0.5rem;
  z-index: 10;
  padding: 0.05rem 0.1rem;
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 0.03rem;
  font-size: 0.16rem;
  color: #fff;
  cursor: pointer;
}
.container .srcList {
  min-width: 100px;
  padding: 10px;
  position: absolute;
  top: 30px;
  bottom: 30px;
  left: 30px;
  z-index: 10;
  overflow: hidden;
  overflow-y: auto;
  background-color: rgba(255, 255, 255, 0.1);
}
.container .srcList li {
  font-size: 0.2rem;
  line-height: 2;
  color: #fff;
  cursor: pointer;
  transition: color 0.2s ease-out 0s;
}
.container .srcList li:hover {
  color: #9c9c9c;
}
.container .srcList li.on {
  color: #f00;
}