/* bim css*/
#main--image {
  position: relative;
  width: 100%;
  margin-bottom: 160px;
}
#main--image::after {
  content: "";
  position: absolute;
  width: 90%;
  height: 100%;
  background-color: #004c7f;
  top: 100px;
  right: 0;
  z-index: -1;
}
#main--image .main--slid_bg {
  position: absolute;
  width: 90%;
  height: 100%;
  background-color: #004c7f;
  top: 0px;
  left: 0;
  z-index: 1;
}
#main--image .main--bg.main-import {
  background: url("../img/bim/bim_main-img.jpg");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  z-index: 1;
}
#main--image .main--bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 90%;
  height: 100%;
}
#main--image .main--bg::after {
  content: "";
  background-color: rgba(0, 21, 27, 0.48);
  position: absolute;
  width: 100%;
  height: 100%;
}
#main--image h1 {
  position: relative;
  max-width: 90%;
  width: 100%;
  margin: 0 auto;
  padding: 168px 10px;
  color: #fff;
  text-align: center;
  font-size: 1.8em;
  font-weight: 500;
  letter-spacing: 2px;
  z-index: 2;
  filter: drop-shadow(0px 0px 3px #444);
  font-family: "Lato", sans-serif;
}
#main--image h1 span {
  display: block;
  margin-top: 0.5em;
  font-size: 1.5em;
  font-weight: 600;
}

@media screen and (max-width: 1280px) {
  #main--image {
    margin-bottom: 160px;
  }
  #main--image::after, #main--image::before {
    top: 80px;
  }
  #main--image::before {
    top: 80px;
  }
  #main--image h1 {
    padding: 120px 0;
    font-size: 1.6em;
  }
  #main--image h1 span {
    display: block;
    margin-top: 0.5em;
    font-size: 1.4em;
  }
}
@media screen and (max-height: 769px) {
  #main--image {
    margin-bottom: 160px;
  }
  #main--image::after, #main--image::before {
    top: 80px;
  }
  #main--image::before {
    top: 80px;
  }
  #main--image h1 {
    padding: 100px 0;
  }
  #main--image h1 span {
    display: block;
    margin-top: 0.5em;
    font-size: 1.25em;
  }
}
@media screen and (max-width: 479px) {
  #main--image {
    margin-bottom: 80px;
  }
  #main--image .main--slid_bg {
    width: 100%;
  }
  #main--image .main--bg {
    width: 100%;
  }
  #main--image::after, #main--image::before {
    top: 40px;
  }
  #main--image::before {
    top: 40px;
  }
  #main--image h1 {
    padding: 72px 0;
    font-size: 1.4em;
  }
}
#bim {
  background-color: #fff;
  padding-top: 70px;
}
@media screen and (max-width: 479px) {
  #bim {
    padding-top: 32px;
  }
}

.sub-header {
  background-color: #f7f7f7;
  padding: 30px 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}
.sub-header__logo img {
  max-width: 480px;
  width: 100%;
  mix-blend-mode: darken;
}
.sub-header__contact-btn {
  border-radius: 0;
  overflow: hidden;
  border: 2px solid #0068ae;
}
.sub-header__contact-btn a {
  padding: 1em 1.2em;
  font-size: 1.4em;
  font-weight: 400;
  color: #fff;
  background-color: #0068ae;
  transition: 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sub-header__contact-btn a::before {
  content: "\f187";
  font-family: "Material Icons";
  font-size: 1.5rem;
  padding-right: 0.4em;
}
.sub-header__contact-btn a:hover {
  color: #0068ae;
  background-color: #fff;
}
@media screen and (max-width: 479px) {
  .sub-header__contact-btn {
    margin-top: 2em;
    width: 100%;
  }
  .sub-header__contact-btn a {
    width: 100%;
  }
}

.bim-contents {
  padding: 0 40px 70px;
}
.bim-contents__text {
  margin-top: 60px;
  font-size: 1.5em;
  line-height: 1.75;
  text-align: left;
}
.bim-contents__iframe {
  aspect-ratio: 3/3.4;
  padding: 24px 0;
  margin-top: 32px;
  border: 1px solid #efefef;
}
@media screen and (max-width: 479px) {
  .bim-contents {
    padding: 0 20px 100px;
  }
  .bim-contents__iframe {
    aspect-ratio: 2/10;
    padding-top: 70px;
  }
  .bim-contents__text {
    font-size: 1.4em;
    font-feature-settings: "palt";
    letter-spacing: 1.4px;
    line-height: 2;
  }
}