body[data-page="about"] .feature-card,
body[data-page="about"] .outcome { text-align: center; }
body[data-page="about"] .icon-disc .external-svg {
  display: block;
  width: 38px;
  height: 38px;
}
body[data-page="about"] .feature-card .icon-disc,
body[data-page="about"] .outcome .icon-disc {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  border: 0;
  background: transparent;
}
body[data-page="about"] .feature-card .icon-disc .external-svg,
body[data-page="about"] .outcome .icon-disc .external-svg { width: 54px; height: 54px; }
body[data-page="about"] .relation-visual {
  position: relative;
  width: 100%;
  max-width: 520px;
  justify-self: center;
}
body[data-page="about"] .relation-visual > img {
  display: block;
  width: 100%;
  height: auto;
}
body[data-page="about"] .relation-visual-icon {
  position: absolute;
  display: grid;
  place-items: center;
  width: 12.35%;
  aspect-ratio: 1;
  border: 1.5px solid #75c4cd;
  border-radius: 50%;
  color: #007b86;
  background: #fff;
  transform: translate(-50%, -50%);
}
body[data-page="about"] .relation-visual-icon .external-svg {
  display: block;
  width: 60%;
  height: 60%;
}
body[data-page="about"] .relation-visual .icon-radiation { left: 6.3%; top: 35.3%; }
body[data-page="about"] .relation-visual .icon-analysis { left: 21.6%; top: 23.4%; }
body[data-page="about"] .relation-visual .icon-waste { left: 35.7%; top: 35.3%; }
body[data-page="about"] .relation-visual .icon-robot { left: 48.3%; top: 20.9%; }
body[data-page="about"] .relation-visual .icon-shield { left: 62.1%; top: 31.6%; }
body[data-page="about"] .relation-visual .icon-researcher { left: 76.4%; top: 28.4%; }
body[data-page="about"] .relation-visual .icon-atom { left: 91.7%; top: 32.2%; }
body[data-page="about"] .hero::after { display: none; }
body[data-page="about"] #features .grid-4,
body[data-page="about"] #outcomes .grid-4 {
  width: 100%;
  margin-inline: auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
body[data-page="about"] .structure-layout {
  display: grid;
  grid-template-columns: minmax(0, 3.3fr) minmax(248px, 1fr);
  align-items: center;
  gap: 16px;
}
body[data-page="about"] .structure-diagram {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid #a9c6d4;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(11, 39, 77, .1);
}
body[data-page="about"] .research-support {
  position: relative;
  align-self: stretch;
  margin: 6px 0;
  padding: 12px 22px;
  border: 1px solid #a9c6d4;
  border-left: 4px solid var(--accent-edge);
  border-radius: 6px;
  color: #222;
  background: rgba(245, 250, 252, .96);
  box-shadow: 0 7px 18px rgba(11, 39, 77, .1);
  font-size: 13px;
  line-height: 1.6;
}
body[data-page="about"] .research-support::before,
body[data-page="about"] .research-support::after {
  content: "";
  position: absolute;
  top: 30%;
  width: 0;
  height: 0;
  border-style: solid;
  transform: translateY(-50%);
}
body[data-page="about"] .research-support::before {
  left: -18px;
  border-width: 14px 18px 14px 0;
  border-color: transparent #a9c6d4 transparent transparent;
}
body[data-page="about"] .research-support::after {
  left: -16px;
  border-width: 13px 17px 13px 0;
  border-color: transparent #f5fafc transparent transparent;
}
body[data-page="about"] .research-support h3 {
  margin: 0;
  color: var(--navy);
  font-size: 16px;
  line-height: 1.4;
}
body[data-page="about"] .research-support p { margin: 8px 0 0; }
body[data-page="about"] .research-support ul { margin: 8px 0 0; padding-left: 1.1em; }
body[data-page="about"] .research-support-image {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin: 14px auto 0;
}
@media (max-width: 980px) {
  body[data-page="about"] #features .grid-4,
  body[data-page="about"] #outcomes .grid-4 {
    width: 80%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  body[data-page="about"] .structure-layout { grid-template-columns: minmax(0, 1fr); }
  body[data-page="about"] .research-support {
    width: 100%;
    max-width: 720px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(150px, 38%);
    align-items: center;
    gap: 20px;
    justify-self: center;
    align-self: auto;
    margin: 0;
    padding: 16px 22px;
  }
  body[data-page="about"] .research-support-image {
    max-width: 280px;
    margin: 0;
    justify-self: end;
  }
  body[data-page="about"] .research-support::before,
  body[data-page="about"] .research-support::after { left: 50%; transform: translateX(-50%); }
  body[data-page="about"] .research-support::before {
    top: -18px;
    border-width: 0 14px 18px;
    border-color: transparent transparent #a9c6d4;
  }
  body[data-page="about"] .research-support::after {
    top: -16px;
    border-width: 0 13px 17px;
    border-color: transparent transparent #f5fafc;
  }
}
@media (max-width: 760px) {
  body[data-page="about"] #features .grid-4,
  body[data-page="about"] #outcomes .grid-4 {
    width: 100%;
    grid-template-columns: 1fr;
  }
  body[data-page="about"] .research-support {
    grid-template-columns: minmax(0, 1fr) minmax(100px, 38%);
    gap: 12px;
    padding: 14px;
  }
}