.intro_page {
  display: flex;
  height: 100vh;
}
.intro_page > a {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 4rem 9rem 9.5rem;
  width: 50%;
  height: 100%;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  transition: all 0.3s;
}
.intro_page > a .top p,
.intro_page > a .bottom span {
  text-shadow: 2px 5px 2px rgba(0, 0, 0, 0.15);
  color: #fff;
}
.intro_page > a .tit1 {
  margin-top: 3.5rem;
  font-size: 3.4rem;
  font-weight: 500;
  text-align: right;
}
.intro_page > a .tit2 {
  font-size: 4rem;
  font-weight: bold;
  text-align: right;
}
.intro_page > a .bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.intro_page > a .bottom img {
  width: 100%;
}
.intro_page > a .bottom img.on {
  display: none;
}
.intro_page > a .bottom span {
  display: inline-block;
  margin-top: 1rem;
  font-size: 2.4rem;
  font-weight: 300;
}

.intro_page .left {
  background-image: url(../images/intro/left_bg0101.png);
}
.intro_page .left .logo img {
  opacity: 1;
  transition: all 0.3s;
}
.intro_page .left .bottom {
  max-width: 349px;
}

.intro_page .right {
  background-image: url(../images/intro/right_bg01.png);
}
.intro_page .right .logo img {
  filter: brightness(0) invert(1);
}
.intro_page .right .bottom {
  max-width: 470px;
}

/* hover */
.intro_page > a:hover .bottom img.on {
  display: block;
}
.intro_page > a:hover .bottom img.off {
  display: none;
}

.intro_page .left:hover {
  background-image: url(../images/intro/left_bg02.png);
  background-position: top;
}
.intro_page .left:hover .logo img {
  opacity: 0;
}
.intro_page .right:hover .logo img {
  filter: brightness(1) invert(0);
}
.intro_page .right:hover {
  background-image: url(../images/intro/right_bg02.png);
}

@media (max-width: 1500px) {
  .intro_page > a {
    padding: 4rem 5rem;
  }
}
@media (max-width: 992px) {
  .intro_page {
    display: block;
  }
  .intro_page > a {
    padding: 3rem 2rem;
    width: 100%;
    height: 50%;
  }
  .intro_page .left {
    background-image: url(../images/intro/left_bg0101_m.png);
  }
  .intro_page > a .tit1 {
    margin-top: 2.5rem;
    font-size: 2.5rem;
  }
  .intro_page > a .tit2 {
    font-size: 3rem;
  }
  .intro_page > a .bottom span {
    font-size: 2rem;
  }

  /* .intro_page .left{
    background-image: url(../images/intro/left_bg01_m.jpg);
  }
  .intro_page .left:hover{
    background-image: url(../images/intro/left_bg02_m.jpg);
  } */

  .intro_page .left .logo img {
    max-width: 200px;
  }
  .intro_page .left .bottom {
    max-width: 250px;
  }
  .intro_page .right .bottom {
    max-width: 340px;
  }
}
@media (max-width: 768px) {
  .intro_page > a {
    padding: 2rem;
  }
  .intro_page > a .tit1 {
    margin-top: 1.5rem;
    font-size: 2rem;
  }
  .intro_page > a .tit2 {
    font-size: 2.5rem;
  }
  .intro_page > a .bottom span {
    font-size: 1.8rem;
  }

  .intro_page .left .logo img {
    max-width: 180px;
  }
  .intro_page .right .logo img {
    max-width: 130px;
  }
  .intro_page .left .bottom {
    max-width: 220px;
  }
  .intro_page .right .bottom {
    max-width: 300px;
  }
}
@media (max-width: 576px) {
  .intro_page > a .tit1 {
    margin-top: 1rem;
    font-size: 1.8rem;
  }
  .intro_page > a .tit2 {
    font-size: 2.2rem;
  }
  .intro_page > a .bottom span {
    font-size: 1.6rem;
  }

  .intro_page .left .logo img:first-child {
    max-width: 100px;
  }
  .intro_page .left .logo img:last-child {
    max-width: 160px;
  }
  .intro_page .right .logo img {
    max-width: 110px;
  }
  .intro_page .left .bottom {
    max-width: 180px;
  }
  .intro_page .right .bottom {
    max-width: 250px;
  }
}