.page-about {
  --a-sec-pad: clamp(44px, 7vw, 96px);
  --a-hair: var(--hair);
}

.page-about .a-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(20px, 3vw, 36px);
  padding-bottom: clamp(36px, 6vw, 76px);
}

.page-about .a-hero::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -170px;
  width: 540px;
  height: 540px;
  background: linear-gradient(140deg, rgba(34, 224, 208, 0.2), rgba(34, 224, 208, 0) 68%);
  clip-path: polygon(28% 0, 100% 0, 100% 74%);
  pointer-events: none;
  z-index: 0;
}

.page-about .a-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .a-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-about .a-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-about .a-hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .a-hero__panel {
  position: relative;
  background: linear-gradient(165deg, var(--panel), var(--ink-950) 78%);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--cyan);
  padding: 22px clamp(18px, 2vw, 26px) 20px;
}

.page-about .a-hero__code {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

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

.page-about .a-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--hair);
}

.page-about .a-hero__facts li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .a-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 600;
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  min-width: 2.2em;
}

.page-about .a-hero__unit {
  font-size: 14px;
  color: var(--mist);
}

.page-about .a-hero__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--hair);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.75;
  color: var(--mist);
}

@media (min-width: 920px) {
  .page-about .a-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: end;
  }
}

.page-about .a-sec {
  padding-top: var(--a-sec-pad);
}

.page-about .a-sec__grid {
  display: grid;
  gap: 18px;
}

.page-about .a-sec__mark {
  position: relative;
}

.page-about .a-sec__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 5.6vw, 72px);
  line-height: 0.85;
  letter-spacing: 0.02em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .a-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.2;
  color: var(--text);
}

.page-about .a-sec__lede {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .a-sec__lede a,
.page-about .lane__text a,
.page-about .a-coverage__text a,
.page-about .eco__body a,
.page-about .a-reach-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.4);
}

.page-about .a-sec__lede a:hover,
.page-about .lane__text a:hover,
.page-about .a-coverage__text a:hover,
.page-about .eco__body a:hover,
.page-about .a-reach-note a:hover {
  border-bottom-color: var(--cyan);
}

@media (min-width: 960px) {
  .page-about .a-sec__grid {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 48px);
  }

  .page-about .a-sec__mark::after {
    content: "";
    position: absolute;
    left: 6px;
    top: calc(100% + 14px);
    width: 1px;
    height: 46px;
    background: linear-gradient(var(--hair), transparent);
  }
}

.page-about .lanes {
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--hair);
}

.page-about .lane {
  display: grid;
  gap: 6px 20px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-about .lane__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .lane__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.25;
  color: var(--text);
}

.page-about .lane__text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .lane__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

@media (min-width: 780px) {
  .page-about .lane {
    grid-template-columns: 44px minmax(0, 1fr) 150px;
    align-items: start;
  }

  .page-about .lane__tag {
    padding-top: 4px;
    text-align: right;
  }
}

.page-about .a-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-about .a-figure img,
.page-about .a-team__figure img,
.page-about .a-coverage__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .tl {
  position: relative;
  list-style: none;
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding: 0 0 0 30px;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 8px;
  width: 1px;
  background: var(--hair);
}

.page-about .tl__item {
  position: relative;
  padding-bottom: clamp(24px, 3vw, 34px);
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(242, 179, 61, 0.12);
}

.page-about .tl__ver {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .tl__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.1vw, 23px);
  line-height: 1.3;
  color: var(--text);
}

.page-about .tl__text {
  margin: 8px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .a-team {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .crew {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-about .crew__item {
  display: grid;
  gap: 4px 18px;
  padding: clamp(16px, 2.2vw, 22px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-about .crew__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .crew__role {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.3;
  color: var(--text);
}

.page-about .crew__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

@media (min-width: 640px) {
  .page-about .crew__item {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-about .crew__desc {
    grid-column: 2;
  }
}

@media (min-width: 900px) {
  .page-about .a-team {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-about .scale {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-about .scale__item {
  background: var(--ink-950);
  padding: clamp(18px, 2.4vw, 26px);
}

.page-about .scale__value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .scale__unit {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--gold);
  margin-left: 4px;
}

.page-about .scale__label {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

@media (min-width: 720px) {
  .page-about .scale {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .a-coverage {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(24px, 3vw, 36px);
}

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

.page-about .a-coverage__text p:last-child {
  margin-bottom: 0;
}

@media (min-width: 880px) {
  .page-about .a-coverage {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }
}

.page-about .spec {
  margin: clamp(22px, 3vw, 32px) 0 0;
  border-top: 1px solid var(--hair);
}

.page-about .spec__row {
  display: grid;
  gap: 4px 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hair);
}

.page-about .spec__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-about .spec__val {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

@media (min-width: 700px) {
  .page-about .spec__row {
    grid-template-columns: 168px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-about .eco {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .eco__fold {
  background: var(--panel);
  border: 1px solid var(--hair);
  transition: border-color 180ms var(--ease-out);
}

.page-about .eco__fold[open] {
  border-color: rgba(34, 224, 208, 0.42);
}

.page-about .eco__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px clamp(16px, 2vw, 22px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  color: var(--text);
}

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

.page-about .eco__sum::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold);
  width: 12px;
  flex: none;
}

.page-about .eco__fold[open] .eco__sum::before {
  content: "–";
}

.page-about .eco__body {
  padding: 0 clamp(16px, 2vw, 22px) 18px;
  border-top: 1px solid var(--hair);
}

.page-about .eco__body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .verify {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--hair);
  background: linear-gradient(120deg, rgba(34, 224, 208, 0.07), rgba(34, 224, 208, 0) 62%);
}

.page-about .verify__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .verify__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .verify__step {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
}

.page-about .verify__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  border: 1px solid var(--hair);
  padding: 2px 7px;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 720px) {
  .page-about .verify__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .a-quote {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: clamp(20px, 3vw, 30px) clamp(20px, 3vw, 32px);
  max-width: 44ch;
  background: var(--paper);
  color: var(--ink-950);
  border-left: 4px solid var(--gold);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.5;
}

.page-about .flow {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-about .flow__item {
  display: grid;
  gap: 6px 20px;
  padding: clamp(14px, 2vw, 20px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-about .flow__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .flow__val {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

@media (min-width: 760px) {
  .page-about .flow__item {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-about .a-reach-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

@media (max-width: 480px) {
  .page-about .a-hero__num {
    min-width: 1.9em;
  }

  .page-about .lane__tag {
    font-size: 11px;
  }

  .page-about .spec__val {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .eco__fold {
    transition: none;
  }
}