.page-about {
  --about-node: var(--cyan);
  --about-sticky: calc(var(--header-h-compact) + 28px);
  color: var(--sand);
  background:
    radial-gradient(1150px 560px at 84% -10%, rgba(139, 92, 246, 0.2), transparent 62%),
    radial-gradient(900px 480px at 0% 12%, rgba(34, 227, 210, 0.13), transparent 58%),
    var(--abyss);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(72px, 12vw, 148px) 0 clamp(34px, 6vw, 68px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(34px, 5.6vw, 66px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--sand);
  max-width: 13em;
}

.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-ends {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-ends__item {
  padding: 18px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  background: linear-gradient(160deg, rgba(10, 34, 51, 0.92), rgba(4, 18, 31, 0.55));
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-ends__item:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-about .about-ends__item--now {
  border-color: rgba(255, 107, 74, 0.45);
}

.page-about .about-ends__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(34px, 5vw, 52px);
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .about-ends__item--now .about-ends__num {
  color: var(--coral);
}

.page-about .about-ends__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sand);
}

.page-about .about-ends__item p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: linear-gradient(150deg, rgba(14, 58, 92, 0.85), rgba(4, 18, 31, 0.92));
}

.page-about .about-hero__visual .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero__badge {
  position: absolute;
  left: 16px;
  top: 16px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(4, 18, 31, 0.75);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-about .about-hero__visual .media__caption {
  display: block;
  padding: 12px 18px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  background: rgba(4, 18, 31, 0.72);
}

.page-about .about-sec {
  padding: clamp(44px, 7vw, 92px) 0;
}

.page-about .about-sec__head {
  max-width: 46em;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-about .about-sec__title {
  margin: 10px 0 0;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--sand);
}

.page-about .about-sec__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .prose {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(22px, 3vw, 40px);
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--purple) 44%, var(--seafoam) 74%, var(--coral));
  opacity: 0.55;
}

.page-about .tl__item {
  position: relative;
  display: grid;
  gap: 12px;
  padding-bottom: clamp(30px, 4vw, 52px);
}

.page-about .tl__item:last-child {
  padding-bottom: 0;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(22px, 3vw, 40px) - 4px);
  top: 14px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--about-node);
  box-shadow: 0 0 0 4px rgba(4, 18, 31, 0.92), 0 0 18px var(--about-node);
}

.page-about .tl__item--purple {
  --about-node: var(--purple);
}

.page-about .tl__item--seafoam {
  --about-node: var(--seafoam);
}

.page-about .tl__item--coral {
  --about-node: var(--coral);
}

.page-about .tl__year {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .tl__year-num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(36px, 8vw, 60px);
  line-height: 0.84;
  letter-spacing: 0.02em;
  color: var(--sand);
}

.page-about .tl__year-tag {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--about-node);
}

.page-about .tl__title {
  margin: 0 0 8px;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.4;
  color: var(--sand);
}

.page-about .tl__text {
  margin: 0;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .tl__body .fold {
  margin-top: 14px;
  border-top: 1px solid var(--line);
}

.page-about .tl__body .fold__summary {
  padding: 12px 0 0;
  cursor: pointer;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  list-style: none;
}

.page-about .tl__body .fold__summary::-webkit-details-marker {
  display: none;
}

.page-about .tl__body .fold__summary::before {
  content: "＋ ";
  color: var(--about-node);
}

.page-about .tl__body .fold[open] .fold__summary::before {
  content: "－ ";
}

.page-about .tl__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .tl__list li::before {
  content: "— ";
  color: var(--about-node);
}

.page-about .about-band {
  margin: clamp(28px, 4vw, 48px) 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: linear-gradient(150deg, rgba(10, 34, 51, 0.9), rgba(4, 18, 31, 0.9));
}

.page-about .about-band .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-band .media__caption {
  display: block;
  padding: 12px 18px;
  font-size: 12px;
  color: var(--mist);
  background: rgba(4, 18, 31, 0.75);
}

.page-about .about-index__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-steps__item {
  padding: 18px 20px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--purple);
  border-radius: var(--r-soft);
  background: rgba(10, 34, 51, 0.55);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-steps__item:nth-child(2) {
  border-left-color: var(--seafoam);
}

.page-about .about-steps__item:nth-child(3) {
  border-left-color: var(--coral);
}

.page-about .about-steps__item:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-about .about-steps__kicker {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-about .about-steps__item h3 {
  margin: 8px 0 6px;
  font-size: 18px;
  font-weight: 800;
  color: var(--sand);
}

.page-about .about-steps__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-split {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-split__text .btn {
  margin-top: 20px;
}

.page-about .about-nums {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-nums__item {
  display: grid;
  gap: 4px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: linear-gradient(155deg, rgba(14, 58, 92, 0.8), rgba(10, 34, 51, 0.6));
}

.page-about .about-nums__item--new {
  border-color: rgba(255, 107, 74, 0.42);
  background: linear-gradient(155deg, rgba(255, 107, 74, 0.22), rgba(10, 34, 51, 0.72));
}

.page-about .about-nums__num {
  font-family: var(--font-num);
  font-size: clamp(38px, 6vw, 62px);
  line-height: 0.9;
  color: var(--seafoam);
}

.page-about .about-nums__item--new .about-nums__num {
  color: var(--coral);
}

.page-about .about-nums__key {
  font-size: 14px;
  color: var(--sand);
}

.page-about .about-nums__val {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-about .about-team {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-about .about-team__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.18), rgba(4, 18, 31, 0.9));
}

.page-about .about-team__media .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team__media .media__caption {
  display: block;
  padding: 12px 18px;
  font-size: 12px;
  color: var(--mist);
  background: rgba(4, 18, 31, 0.75);
}

.page-about .about-facts {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-facts li {
  padding: 14px 16px;
  border-left: 2px solid var(--seafoam);
  border-radius: var(--r-soft);
  background: rgba(10, 34, 51, 0.5);
}

.page-about .about-facts__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1;
  color: var(--seafoam);
}

.page-about .about-facts li span:last-child {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .about-reach {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-reach li {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  background: rgba(4, 18, 31, 0.55);
}

.page-about .about-reach__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1;
  color: var(--purple);
}

.page-about .about-reach__desc {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .about-cta {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-panel);
  background: linear-gradient(140deg, rgba(34, 227, 210, 0.12), rgba(139, 92, 246, 0.14) 45%, rgba(255, 107, 74, 0.12));
}

.page-about .about-cta__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-cta__links .btn {
  white-space: nowrap;
}

@media (min-width: 640px) {
  .page-about .about-ends {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-reach {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-about .tl__item {
    grid-template-columns: minmax(150px, 210px) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 60px);
    align-items: start;
  }

  .page-about .tl__year {
    position: sticky;
    top: var(--about-sticky);
  }

  .page-about .tl__year-num {
    font-size: clamp(56px, 5.4vw, 86px);
  }

  .page-about .about-index__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-about .about-reach {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}