.sec-about {
  
  --a-label-col: 284px; 
  --a-dd-max: 577px; 
  --a-panel: #fafafa; 
  --a-dt-gap: 16px; 
  --a-dd-gap: 32px; 

  
  padding-block: 79px 137px;
  background: var(--bg-base);
}

.sec-about__head::before {
  content: "";
  display: block;
  height: 1px;
  background: var(--text-strong);
}

.sec-about__title {
  margin-top: 9px; 
  font-size: var(--fs-h2); 
  font-weight: 700;
  line-height: 64px;
}

.sec-about__lead {
  margin-top: 20px; 
  font-size: var(--fs-body); 
  font-weight: 400;
  line-height: 1.6;
}

.sec-about__h2 {
  width: fit-content;
  max-width: 100%;
  padding-top: 20px; 
  border-top: 1px solid var(--text-strong);
  font-size: var(--fs-h3); 
  font-weight: 700;
  line-height: 1.4;
}

.sec-about__bleed {
  margin-left: max(24px, calc((100% - var(--container)) / 2));
}

.sec-about__group {
  margin-top: 94px; 
}

.sec-about__figure {
  margin-block: 65px 0; 
  margin-right: 0;
}

.sec-about__photo {
  width: 100%;
  height: auto;
  aspect-ratio: 1260 / 520; 
  object-fit: cover;
}

.sec-about__dl {
  display: grid;
  grid-template-columns: var(--a-label-col) minmax(0, 1fr);
  row-gap: var(--a-row-gap, 56px);
}

.sec-about__dl > dt {
  font-size: var(--fs-lead); 
  font-weight: 700;
  line-height: 1.45; 
}

.sec-about__dl > dd {
  margin: 0;
}

.sec-about__p {
  font-size: var(--fs-body); 
  line-height: 2; 
}

.sec-about__link {
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.sec-about__link:hover {
  color: var(--green-deep);
}

.sec-about__dl--profile {
  --a-row-gap: 56px;

  margin-top: 60px; 
}

.sec-about__nameline {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 16px; 
}

.sec-about__name {
  font-size: var(--fs-h3); 
  font-weight: 700;
  line-height: 1.4;
}

.sec-about__role {
  font-size: var(--fs-body); 
  line-height: 1.4;
}

.sec-about__nameline + .sec-about__p {
  margin-top: 24px; 
}

.sec-about__list {
  padding-left: 1.2em;
  list-style: disc;
  font-size: var(--fs-body);
  line-height: 2;
}

.sec-about__plain-list {
  font-size: var(--fs-body);
  line-height: 2;
}

.sec-about__plain-list > li {
  padding-left: 1em;
  text-indent: -1em;
}

.sec-about__br--sp {
  display: none;
}

.sec-about__history {
  display: grid;
  grid-template-columns: 109px minmax(0, 1fr);
  margin: 0;
  font-size: var(--fs-body);
  line-height: 2;
}

.sec-about__history > dt {
  font-weight: 400;
}

.sec-about__history > dd {
  margin: 0;
}

.sec-about__band {
  margin-top: 116px; 
  padding-block: 204px 107px; 
  background: var(--surface);
}

.sec-about__mv-figure {
  margin-top: 65px; 
  
  padding-block: 18px 16px;
  background: var(--a-panel);
}

.sec-about__mv-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1260 / 520; 
  object-fit: cover;
}

.sec-about__dl--mv {
  --a-row-gap: 64px;

  margin-top: 64px; 
}

.sec-about__mv-title {
  font-size: var(--fs-h3); 
  font-weight: 700;
  line-height: 1.35; 
}

.sec-about__mv-title + .sec-about__p {
  margin-top: 16px; 
}

.sec-about__group--company {
  margin-top: 174px; 
}

.sec-about__dl--company {
  --a-row-gap: 23px; 

  margin-top: 81px; 
}

.sec-about__dl--company > dd {
  max-width: var(--a-dd-max); 
  font-size: var(--fs-body);
  line-height: 2;
}

@media (max-width: 1099px) {
  .sec-about {
    --a-label-col: 180px;

    padding-bottom: 110px;
  }

  .sec-about__band {
    padding-block: 120px 80px;
  }

  .sec-about__group--company {
    margin-top: 110px;
  }

  .sec-about__dl--company {
    margin-top: 56px;
  }
}

@media (max-width: 767px) {
  .sec-about {
    
    padding-block: 73px 74px;
  }

  .sec-about__title {
    margin-top: 10px;
    font-size: var(--sp-fs-hero); 
    line-height: 42px;
  }

  .sec-about__lead {
    margin-top: 10px;
    font-size: var(--sp-fs-sm); 
    line-height: 16px;
  }

  .sec-about__h2 {
    padding-top: 14px; 
  }

  
  .sec-about__bleed {
    margin-left: var(--sp-gutter);
  }

  

  .sec-about__group {
    margin-top: 55px; 
  }

  .sec-about__figure {
    margin-top: 32px; 
  }

  .sec-about__photo {
    aspect-ratio: 363 / 181; 
  }

  
  .sec-about__dl {
    grid-template-columns: minmax(0, 1fr);
    row-gap: var(--a-dt-gap);
  }

  .sec-about__dl > dd:not(:last-of-type) {
    margin-bottom: calc(var(--a-dd-gap) - var(--a-dt-gap));
  }

  .sec-about__dl > dt {
    font-size: var(--sp-fs-h3); 
  }

  .sec-about__dl--profile {
    --a-dt-gap: 23px; 
    --a-dd-gap: 48px; 

    margin-top: 48px; 
  }

  .sec-about__name {
    font-size: var(--sp-fs-h3); 
  }

  .sec-about__role,
  .sec-about__p,
  .sec-about__list,
  .sec-about__plain-list,
  .sec-about__history,
  .sec-about__dl--company > dd {
    font-size: var(--sp-fs-body); 
    line-height: 24px;
  }

  .sec-about__nameline {
    display: block; 
  }

  .sec-about__role {
    margin-top: 15px; 
  }

  .sec-about__nameline + .sec-about__p {
    margin-top: 15px; 
  }

  .sec-about__history {
    grid-template-columns: 101px minmax(0, 1fr); 
  }

  

  .sec-about__band {
    margin-top: 74px; 
    padding-block: 80px 100px; 
  }

  .sec-about__mv-figure {
    margin-top: 37px; 
    padding-block: 21px 0; 
  }

  .sec-about__mv-img {
    aspect-ratio: 363 / 162; 
  }

  .sec-about__dl--mv {
    --a-dt-gap: 23px; 
    --a-dd-gap: 64px; 

    margin-top: 40px; 
  }

  .sec-about__mv-title {
    font-size: var(--sp-fs-h3); 
    line-height: 1.45; 
  }

  
  .sec-about__br--pc {
    display: none;
  }

  .sec-about__br--sp {
    display: inline;
  }

  .sec-about__mv-title + .sec-about__p {
    margin-top: 13px;
  }

  

  .sec-about__group--company {
    margin-top: 80px; 
  }

  .sec-about__dl--company {
    --a-dt-gap: 16px; 
    --a-dd-gap: 32px; 

    margin-top: 47px; 
  }

  .sec-about__dl--company > dd {
    max-width: none;
  }

}