.main_visual {
  background-image: url(../images/mv_bg_sp.jpg);
  background-size: cover;
}
@media screen and (min-width: 640px) {
  .main_visual {
    background-image: url(../images/mv_bg_pc.jpg);
  }
}

.main_visual_inner {
  max-width: 1366px;
  margin: 0 auto;
  position: relative;

  img {
    display: block;
  }
}

.ge_demo {
  iframe {
    aspect-ratio: 4 / 3;
    width: 100%;
    max-width: var(--inner-width);
    height: auto;
    display: block;
    margin: 2rem auto;
  }
}

.bl_about_slide__ph {
  position: relative;
  z-index: 1;
}

.bl_about_slide__txt {
  padding: 2rem;
}
@media screen and (min-width: 640px) {
  .bl_about_slide__txt {
    max-width: 50vw;
  }
}

/* COMMON */

.bl_cont_ttl {
  margin-bottom: 5rem;
}
@media screen and (min-width: 640px) {
  .bl_cont_ttl {
    margin-bottom: 8rem;
  }
}

:root {
  /* --ixs-blue: #004382; */
  --ixs-blue: #182460;
  --ixs-blue-blight: #004382;
  --ixs-blue-text: #19427c;
  --inner-width: 1000px;
}

header {
  .anchor_links {
    flex-grow: 1;
    display: flex;
    align-items: center;
    padding: 0 1rem;
    background-color: #003366;
    ul {
      flex-grow: 1;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      column-gap: 1.5rem;
      /* row-gap: 1rem; */
      padding: 0;
    }
    li {
      a {
        display: block;
        width: inherit;
        position: relative;
        padding-left: 20px;
      }
    }
    a:before {
      bottom: 6px;
      content: "";
      position: absolute;
      left: 0px;
      width: 8px;
      height: 8px;
      border-top: 2px solid #fff;
      border-right: 2px solid #fff;
      transform: rotate(134deg);
    }
  }
  .bl_navi__pc__sub {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    /* width: 58%; */
    min-width: 620px;
  }
}
main {
  .anchor_links {
    background-color: #004382;
    ul {
      display: flex;
      flex-wrap: wrap;
      gap: 4rem;
      margin: 0 auto;
      padding: 2rem;
      justify-content: center;
      align-items: center;
    }
    li {
      display: block;
      width: 40%;
      a {
        position: relative;
        display: flex;
        justify-content: center;
        align-items: center;
        aspect-ratio: 1 / 1;
        height: 100%;
        background-image: url(../../lp_common/images/subnav_00.png);
        background-repeat: no-repeat;
        background-position: center;
        background-size: cover;
        color: white;
        font-weight: 600;
      }
      a:hover {
        opacity: 0.5;
        text-decoration: none;
      }
      a:after {
        bottom: 15px;
        content: "";
        position: absolute;
        left: 0px;
        right: 0;
        margin: auto;
        width: 8px;
        height: 8px;
        border-top: 2px solid #fff;
        border-right: 2px solid #fff;
        transform: rotate(134deg);
      }
    }
  }
  @media screen and (min-width: 640px) {
    .anchor_links {
      ul {
        justify-content: space-between;
        max-width: var(--inner-width);
      }
      li {
        width: auto;
        a {
          width: 134px;
        }
      }
    }
  }
}

.mt-4 {
  margin-top: 4rem !important;
}

.mt-8 {
  margin-top: 8rem !important;
}
.text-center {
  text-align: center;
}
.mobile_hidden {
  display: none;
}
.mobile_show {
  display: inline;
}
@media screen and (min-width: 640px) {
  .mobile_hidden {
    display: inline;
  }
  .mobile_show {
    display: none;
  }
}

.is_button {
  background-color: var(--ixs-blue-blight);
  color: #fff;
  text-decoration: none;
  padding: 2rem 2.5rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  border-radius: 1rem;
  &:visited {
    color: #fff;
  }
  &:hover {
    text-decoration: none;
    opacity: 0.8;
    transition-duration: 0.4s;
  }
  &:before {
    content: "";
    display: inline-block;
    margin-right: 0.5em;
    vertical-align: middle;
    width: 0;
    height: 0;
    border-top: 0.5em solid transparent;
    border-bottom: 0.5em solid transparent;
    border-left: 0.8em solid #fff;
  }
  &.text_large {
    font-size: 2.4rem;
  }
}

.container {
  padding: 80px 2rem 100px;
  margin-left: auto;
  margin-right: auto;
}
@media screen and (min-width: 640px) {
  .container {
    max-width: 1280px;
  }
}

figure {
  display: block;
  margin-left: auto;
  margin-right: auto;
  max-width: var(--inner-width);
}

hr.spacer {
  border: 0;
  box-shadow: none;
  padding: 12rem 0;
}

.horizontal_block {
  display: flex;
  flex-direction: column;
  .photo {
    margin-top: 1rem;
  }
  .text {
    margin-top: 2rem;
    color: var(--ixs-blue-text);
    h3 {
      margin-top: 1rem;
      font-weight: 700;
      font-size: 2rem;
    }
    p {
      margin-top: 2rem;
    }
  }
  &.bg_grid {
    padding: 2rem;
    background-image: url(../../lp_common/images/bg_line_blue.png);
    background-repeat: repeat;
    background-size: 1280px 526px;
    h3 {
      margin-top: 0;
    }
  }
}
@media screen and (min-width: 640px) {
  .horizontal_block {
    max-width: var(--inner-width);
    margin: 4rem auto;
    flex-wrap: nowrap;
    flex-direction: row-reverse;
    align-items: start;
    .photo {
      margin-top: 0;
      padding: 2rem;
      width: 50%;
      flex-shrink: 0;
    }
    .text {
      padding: 2rem;
      flex-grow: 1;
      h3 {
        font-size: 2.85rem;
      }
    }
  }
}

ul.caution {
  max-width: var(--inner-width);
  margin-left: auto;
  margin-right: auto;
  color: var(--ixs-blue-text);
  li {
    margin-top: 1rem;
    list-style: none;
    position: relative;
    padding-left: 1.5em;
    &:before {
      content: "※";
      position: absolute;
      left: 0;
      color: var(--ixs-blue-text);
      font-weight: bold;
    }
  }
}

/* YouTube */
.youtube-container {
  position: relative;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.5);
}

.bl_about_slide__ph.crop {
  overflow: hidden;
  aspect-ratio: 1.7 / 1;
  video {
    width: 101%;
    max-width: inherit;
    height: auto;
    display: block;
    margin-left: -2px;
  }
}

.youtube-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.footer_logo {
  width: 76px;
  margin-left: auto;
  margin-right: auto;
}