body .bg{
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  background-image: url('../images/bg.png');
  background-size: cover; 
  background-position: center; 
  background-repeat: no-repeat; 
}

body img{
  max-width: 100%; /* 使圖片最大寬度不超過父容器的寬度 */
  height: auto;    /* 保持圖片的原始高寬比 */
}

body .page_content{
  min-width: 375px;
  width: 90%;
  max-width: 575px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

body .info_content{
  width: 100%;
  height: 150px;
  margin-top: 15%;
  display: flex;
  justify-content: center;
  align-items: center;
}

body .info_content .info_title{
  max-width: 300px;
}

body .content {
  margin-top: 10%;
  display: flex;
}

body .content .left_side {
  width: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
}
body .content .right_side {
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

body #go_btn{
  margin: 0 auto;
}

body .next{
  margin-top: 5%;
  margin-left: 50%;
  margin-right: 5%;
  display: flex;
  justify-content: flex-start;
}

body .next .triangle-right{
  width: 0;
  height: 0;
  border-top: 1rem solid transparent;
  border-bottom: 1rem solid transparent;
  border-left: 1.5rem solid #d550fe;
  margin: 0 3px; 
}
body .next .triangle-right:nth-child(2){
  border-left-color: #c843f8;
}
body .next .triangle-right:nth-child(3){
  border-left-color: #be38f9;
}
body .next .triangle-right:nth-child(4){
  border-left-color: #b024ea;
}
body .next .triangle-right:nth-child(5){
  border-left-color: #a516e4;
}
body .next .triangle-right:nth-child(6){
  border-left-color: #b41af7;
}