.page-about {
  --about-measure: 66ch;
  background: var(--ink-900);
  color: var(--text-hi);
}

.page-about .about-crumb {
  padding-top: 18px;
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  border-bottom: 1px solid var(--line-600);
  background-image: repeating-linear-gradient(90deg, rgba(53, 224, 212, 0.055) 0 1px, transparent 1px 96px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
  padding: 30px 0 46px;
}

.page-about .about-hero__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 12px 0 16px;
  color: var(--text-hi);
}

.page-about .about-hero__copy {
  max-width: var(--about-measure);
  color: var(--text-mid);
}

.page-about .about-hero__seal {
  border: 2px solid var(--orange);
  background: rgba(255, 123, 61, 0.07);
  padding: 18px 20px 16px;
  align-self: start;
  position: relative;
}

.page-about .about-hero__seal::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -1px;
  width: 14px;
  height: 14px;
  border-right: 2px solid var(--orange);
  border-top: 2px solid var(--orange);
}

.page-about .about-hero__sealnum {
  font-family: var(--font-mono);
  font-size: 54px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-about .about-hero__seallabel {
  margin: 8px 0 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-hi);
}

.page-about .about-hero__sealline {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--line-600);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-mid);
}

/* ---------- shared type ---------- */
.page-about .about-h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.28;
  letter-spacing: -0.005em;
  margin: 10px 0 16px;
  color: var(--text-hi);
}

.page-about .about-p {
  max-width: var(--about-measure);
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-mid);
  margin: 0 0 12px;
}

.page-about .about-p a {
  color: var(--cyan);
}

/* ---------- acts ---------- */
.page-about .about-acts {
  border-bottom: 1px solid var(--line-600);
}

.page-about .about-acts__intro {
  margin-bottom: 0;
}

.page-about .about-acts__list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-600);
}

.page-about .about-acts__row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-600);
  transition: background 0.16s var(--ease);
}

.page-about .about-acts__row:hover {
  background: rgba(53, 224, 212, 0.035);
}

.page-about .about-acts__num {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  padding-top: 2px;
}

.page-about .about-acts__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 8px;
  color: var(--text-hi);
}

/* ---------- flow ---------- */
.page-about .about-flow {
  border-bottom: 1px solid var(--line-600);
}

.page-about .about-flow__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 34px;
}

.page-about .about-flow__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line-600);
  background: var(--ink-800);
  color: var(--text-mid);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), transform 0.16s var(--ease);
}

.page-about .about-flow__chip .emc-mono {
  color: var(--cyan);
  font-size: 12px;
}

.page-about .about-flow__chip:hover,
.page-about .about-flow__chip:focus-visible {
  border-color: var(--cyan);
  color: var(--text-hi);
  transform: translateY(-2px);
}

.page-about .about-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-flow__step {
  position: relative;
  margin-left: 16px;
  padding: 0 0 30px 34px;
  border-left: 1px solid var(--line-600);
  scroll-margin-top: 120px;
}

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

.page-about .about-flow__no {
  position: absolute;
  left: -16px;
  top: -2px;
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  background: var(--ink-900);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.page-about .about-flow__title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin: 4px 0 8px;
  color: var(--text-hi);
}

.page-about .about-flow__meta {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--text-mid);
}

.page-about .about-flow__meta .emc-mono {
  color: var(--orange);
  font-weight: 700;
  margin-right: 6px;
}

/* ---------- team ---------- */
.page-about .about-team {
  border-bottom: 1px solid var(--line-600);
}

.page-about .about-team__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-team__filter {
  margin-top: 24px;
}

.page-about .emc-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-team__status {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-mid);
}

.page-about .about-team__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-team__item {
  border-left: 2px solid var(--line-600);
  padding: 14px 0 14px 18px;
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-about .about-team__item:hover,
.page-about .about-team__item:focus-within {
  border-color: var(--cyan);
  background: rgba(53, 224, 212, 0.045);
}

.page-about .about-team__item[hidden] {
  display: none;
}

.page-about .about-team__name {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-hi);
}

.page-about .about-team__count {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--cyan);
  border: 1px solid var(--line-600);
  padding: 2px 8px;
}

.page-about .about-team__item .about-p {
  margin-bottom: 0;
}

.page-about .about-team__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-team__figure {
  margin: 0;
  border: 2px solid var(--line-600);
}

.page-about .about-team__quote {
  margin: 0;
  padding: 16px 18px;
  border-left: 3px solid var(--orange);
  background: var(--ink-800);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-hi);
}

.page-about .about-team__asidelink {
  margin: 0;
}

/* ---------- track ---------- */
.page-about .about-track {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-600);
}

.page-about .about-track__texture {
  position: absolute;
  inset: 0;
  opacity: 0.14;
  pointer-events: none;
}

.page-about .about-track__texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-track__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-track__list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line-600);
  display: grid;
  gap: 18px;
}

.page-about .about-track__node {
  position: relative;
}

.page-about .about-track__dot {
  position: absolute;
  left: -35px;
  top: 18px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 11px;
}

.page-about .about-track__card {
  background: var(--paper);
  border: 2px solid var(--ink-800);
  box-shadow: var(--shadow-paper);
  padding: 18px 20px 20px;
  transition: transform 0.18s var(--ease);
}

.page-about .about-track__card .emc-tag {
  display: inline-block;
  margin: 0 0 10px;
}

.page-about .about-track__title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 8px;
  color: #16203f;
}

.page-about .about-track__more {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: #414a68;
}

/* ---------- partners ---------- */
.page-about .about-partners {
  border-bottom: 1px solid var(--line-600);
}

.page-about .about-partners__figure {
  margin: 24px 0 32px;
  border: 2px solid var(--line-600);
}

.page-about .about-partners__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-partners__item {
  border-top: 2px solid var(--orange);
  padding-top: 16px;
}

.page-about .about-partners__num {
  font-size: 30px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: 0.02em;
  margin: 0 0 12px;
}

.page-about .about-partners__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--text-hi);
}

.page-about .about-partners__item .about-p {
  margin-bottom: 0;
}

/* ---------- honor ---------- */
.page-about .about-honor {
  border-bottom: 1px solid var(--line-600);
}

.page-about .about-honor__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-about .about-honor__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-honor__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 5px;
}

.page-about .about-honor__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 6px;
  color: var(--text-hi);
}

.page-about .about-honor__item .about-p {
  margin-bottom: 0;
}

/* ---------- sla ---------- */
.page-about .about-sla__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-sla__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line-600);
  border: 1px solid var(--line-600);
}

.page-about .about-sla__row {
  background: var(--ink-800);
  padding: 18px 18px 16px;
  display: grid;
  gap: 8px;
}

.page-about .about-sla__time {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-about .about-sla__title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text-hi);
}

.page-about .about-sla__row .about-p {
  margin-bottom: 0;
  font-size: 14px;
}

.page-about .about-sla__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}

.page-about .about-sla__aside {
  border: 1px solid var(--line-600);
  background: var(--ink-800);
  padding: 22px;
  align-self: start;
}

.page-about .about-sla__quote {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-hi);
}

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

.page-about .about-sla__links li {
  border-top: 1px solid var(--line-600);
}

.page-about .about-sla__links a {
  display: block;
  padding: 11px 0;
  color: var(--cyan);
  font-size: 14px;
  text-decoration: none;
  transition: padding-left 0.16s var(--ease), color 0.16s var(--ease);
}

.page-about .about-sla__links a:hover,
.page-about .about-sla__links a:focus-visible {
  padding-left: 6px;
  color: var(--text-hi);
}

/* ---------- responsive ---------- */
@media (min-width: 760px) {
  .page-about .about-hero__title {
    font-size: 48px;
  }

  .page-about .about-h2 {
    font-size: 32px;
  }

  .page-about .about-p {
    font-size: 16px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: end;
    gap: 40px;
    padding: 44px 0 56px;
  }

  .page-about .about-acts__row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 28px;
    padding: 30px 0;
  }

  .page-about .about-acts__row:hover {
    padding-left: 8px;
  }

  .page-about .about-flow__step {
    margin-left: 22px;
    padding-left: 52px;
  }

  .page-about .about-flow__no {
    left: -22px;
    width: 43px;
    height: 43px;
    font-size: 13px;
  }

  .page-about .about-partners__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
  }

  .page-about .about-honor__item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 20px;
  }

  .page-about .about-sla__row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
    padding: 22px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-hero__title {
    font-size: 56px;
  }

  .page-about .about-team__grid,
  .page-about .about-sla__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-team__aside,
  .page-about .about-sla__aside {
    position: sticky;
    top: 96px;
  }

  .page-about .about-team__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
  }

  .page-about .about-track__list {
    padding-left: 30px;
    gap: 22px;
  }

  .page-about .about-track__dot {
    left: -43px;
  }

  .page-about .about-track__card {
    padding: 22px 24px 24px;
  }
}

@media (hover: hover) and (min-width: 1000px) {
  .page-about .about-track__more {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.26s var(--ease), opacity 0.2s var(--ease);
  }

  .page-about .about-track__node:hover .about-track__more,
  .page-about .about-track__node:focus-within .about-track__more {
    max-height: 220px;
    opacity: 1;
  }

  .page-about .about-track__node:hover .about-track__card,
  .page-about .about-track__node:focus-within .about-track__card {
    transform: translateY(-4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-track__more,
  .page-about .about-track__card,
  .page-about .about-flow__chip,
  .page-about .about-sla__links a {
    transition: none;
  }

  .page-about .about-track__more {
    max-height: none;
    opacity: 1;
    overflow: visible;
  }

  .page-about .about-track__node:hover .about-track__card,
  .page-about .about-flow__chip:hover {
    transform: none;
  }
}