.bg_color_layer {
  margin-top: 60px;
  background: #030409 url('../images/beijing.png') no-repeat 100% 100%;
  color: #fff;
  position: relative;
  height: 520px;
  display: flex;
  justify-content: flex-end;
  flex-direction: column;
}
.bg_color_layer .bg_img_layer {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  display: inline-block;
}
.bg_color_layer .banner_content {
  padding: 100px 0 140px;
  width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  font-size: 30px;
  padding-left: 80px;
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  background: url('../images/yuansu.png') no-repeat right center/auto 70%;
  height: 100%;
}
.bg_color_layer .banner_content .title  {
  padding: 10px 0;
}
.bg_color_layer .banner_content .description  {
  font-size: 20px;
  display: inline-block;
  width: 560px;
  text-align: justify;
  line-height: 1.5;
  margin-top: 20px;
  margin-bottom: 20px;
}
.bg_color_layer .banner_btn {
  margin-top: 20px;
}
.bg_color_layer .banner_btn button{
  background: url('../images/btn_bg.png') no-repeat center center / 100% 100%;
  /* border: 1px solid #fff; */
  /* border-radius: 4px; */
  width: 168px;
  height: 54px;
  line-height: 50px;
  color: #fff;
  cursor: pointer;
  font-size: 20px;
  opacity: 0.9;
  border: 0;
}
.bg_color_layer .banner_btn button.no-bg{
  background: #fff;
  border: none;
  border-radius: 27px;
  color: #000;
  margin-left: 20px;
  font-weight: 400;
}

.bg_color_layer .banner_btn button:hover {
  opacity: 1;
}
.bg_color_layer .banner_btn button.no-bg:hover {
  background-color: rgba(255, 255, 255, 0.1);
}
.bg_color_layer .banner_btn button.no-bg:hover {
  background-color: rgba(255,255,255,1);
  font-weight: 700;

}
.dialog-mask .dialog__dom  {background-color: #fff; padding-bottom: 20px;box-shadow: 0 0 15px #333;}
.dialog-mask .dialog__dom .dialog-title{
  background-color: #f5f5f5;
  color: #333;
  border-bottom: 1px solid #999;
  padding-bottom: 5px;
}
.dialog-mask .dialog-body {
  padding: 20px;
}
.dialog-mask .dialog-title .dialog-close {
  width: 10px;
  height: 16px;
}
.video_box {
  width: 100%;
  border: 1px solid #ccc;
}
.video_box video {
  width: 100%;
  object-fit: fill;
  vertical-align: middle;
}

.qr_code_box {
  width: 360px;
  height: 360px;
  background: url('../images/qr_code_img.jpg') no-repeat center / 100%;
}