.page-about {
  --ab-ink-line: var(--edge) solid var(--ink);
  --ab-gap: clamp(1.5rem, 4vw, 3rem);
  background: var(--cream);
  color: var(--ink);
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.page-about .ab-topbar {
  padding-top: clamp(0.75rem, 2vw, 1.25rem);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  padding-top: clamp(1rem, 3vw, 2rem);
}

.page-about .ab-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.page-about .ab-hero__kicker {
  color: var(--ocean);
  margin-bottom: 0.4rem;
}

.page-about .ab-hero__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 900;
}

.page-about .ab-hero__title em {
  font-style: normal;
  display: inline-block;
  padding: 0 0.18em;
  background: var(--coral);
  color: var(--cream);
  border-radius: var(--r-sm);
  box-shadow: inset 0 -0.22em 0 rgba(11, 27, 58, 0.22);
}

.page-about .ab-hero__lede {
  max-width: 34ch;
  margin: 0 0 1.5rem;
  font-size: clamp(0.95rem, 2.4vw, 1.0625rem);
  line-height: 1.75;
  color: var(--ink);
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .ab-hero__visual {
  position: relative;
}

.page-about .ab-hero__stamp {
  display: inline-block;
  margin-bottom: 0.9rem;
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--night);
  background: var(--gold);
  border: var(--ab-ink-line);
  border-radius: 999px;
  transform: rotate(-2deg);
}

.page-about .ab-deck {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-about .ab-deck__card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0.15rem 0.85rem;
  align-items: center;
  padding: 0.9rem 1.1rem;
  background: var(--paper);
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
}

.page-about .ab-deck__no {
  grid-row: 1 / span 2;
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--coral);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
}

.page-about .ab-deck__label {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .ab-deck__meta {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(18, 20, 28, 0.72);
}

/* ---------- 名字的来历 ---------- */
.page-about .ab-origin {
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.page-about .ab-origin__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
  align-items: start;
}

.page-about .ab-origin__figure {
  position: relative;
  margin: 0;
}

.page-about .ab-origin__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(160deg, var(--night), var(--hibiscus) 55%, var(--coral));
}

.page-about .ab-origin__figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: rgba(18, 20, 28, 0.65);
}

.page-about .ab-origin__body h2,
.page-about .ab-team__head h2,
.page-about .ab-rhythm__body h2,
.page-about .ab-gate__head h2,
.page-about .ab-island__lead h2 {
  margin: 0.35rem 0 0.75rem;
  font-size: clamp(1.5rem, 4.6vw, 2.25rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
  font-weight: 900;
}

.page-about .ab-origin__body > p {
  margin: 0 0 0.8rem;
  line-height: 1.75;
  max-width: 33ch;
}

.page-about .ab-origin__list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-about .ab-origin__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--paper);
  border: var(--ab-ink-line);
  border-radius: var(--r-sm) var(--r-lg) var(--r-lg) var(--r-sm);
}

.page-about .ab-origin__dot {
  width: 14px;
  height: 14px;
  margin-top: 0.4rem;
  border-radius: 50%;
  border: 2px solid var(--ink);
}

.page-about .ab-origin__dot--coral { background: var(--coral); }
.page-about .ab-origin__dot--hibiscus { background: var(--hibiscus); }
.page-about .ab-origin__dot--palm { background: var(--palm); }
.page-about .ab-origin__dot--ocean { background: var(--ocean); }

.page-about .ab-origin__list strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 0.15rem;
}

.page-about .ab-origin__list p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(18, 20, 28, 0.8);
}

.page-about .ab-origin__list a {
  color: var(--ocean);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
}

/* ---------- 四组人 ---------- */
.page-about .ab-team {
  background: var(--mist);
  border-top: var(--ab-ink-line);
  border-bottom: var(--ab-ink-line);
}

.page-about .ab-team__head > p:last-child {
  margin: 0;
  max-width: 46ch;
  line-height: 1.75;
  color: rgba(18, 20, 28, 0.82);
}

.page-about .ab-team__stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0;
}

.page-about .ab-team__figure {
  margin: 0;
}

.page-about .ab-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(120deg, var(--palm), var(--gold));
}

.page-about .ab-team__figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: rgba(18, 20, 28, 0.65);
}

.page-about .ab-stat {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: clamp(1.25rem, 3.5vw, 2rem);
  background: var(--night);
  color: var(--cream);
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
}

.page-about .ab-stat__num {
  font-size: clamp(3.5rem, 14vw, 6rem);
  line-height: 0.82;
  font-weight: 900;
  letter-spacing: -0.05em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-stat__unit {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: rgba(255, 246, 236, 0.72);
}

.page-about .ab-stat__desc {
  margin: 0.25rem 0 0.5rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255, 246, 236, 0.9);
}

.page-about .ab-ratio {
  display: flex;
  width: 100%;
  height: 16px;
  overflow: hidden;
  border: 2px solid var(--cream);
  border-radius: 999px;
}

.page-about .ab-ratio__seg {
  display: block;
  height: 100%;
}

.page-about .ab-ratio__seg--ops { flex: 22; background: var(--coral); }
.page-about .ab-ratio__seg--tech { flex: 19; background: var(--hibiscus); }
.page-about .ab-ratio__seg--sup { flex: 15; background: var(--palm); }
.page-about .ab-ratio__seg--law { flex: 12; background: var(--gold); }

.page-about .ab-team__list {
  display: grid;
  gap: 0.9rem;
}

.page-about .ab-team__card {
  background: var(--paper);
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-about .ab-team__card--hibiscus { margin-left: 0; }
.page-about .ab-team__card--palm { margin-left: 0; }

.page-about .ab-team__head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.7rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
  border-left: 10px solid var(--coral);
  background: var(--paper);
}

.page-about .ab-team__card--hibiscus .ab-team__head-row { border-left-color: var(--hibiscus); }
.page-about .ab-team__card--palm .ab-team__head-row { border-left-color: var(--palm); }
.page-about .ab-team__card--ocean .ab-team__head-row { border-left-color: var(--ocean); }

.page-about .ab-team__head-row::-webkit-details-marker {
  display: none;
}

.page-about .ab-team__idx {
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: rgba(18, 20, 28, 0.55);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-team__name {
  font-size: 1.0625rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-about .ab-team__hint {
  flex-basis: 100%;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(18, 20, 28, 0.72);
}

.page-about .ab-team__chev {
  position: relative;
  margin-left: auto;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  transition: transform 220ms var(--ease), background 220ms var(--ease);
}

.page-about .ab-team__chev::before,
.page-about .ab-team__chev::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 2px;
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.page-about .ab-team__chev::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity 220ms var(--ease);
}

.page-about .ab-team__card[open] .ab-team__chev {
  background: var(--gold);
  transform: rotate(180deg);
}

.page-about .ab-team__card[open] .ab-team__chev::after {
  opacity: 0;
}

.page-about .ab-team__body {
  padding: 0 1.1rem 1.15rem 2.4rem;
}

.page-about .ab-team__body p {
  margin: 0 0 0.6rem;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(18, 20, 28, 0.85);
}

.page-about .ab-team__body ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.35rem;
}

.page-about .ab-team__body li {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(18, 20, 28, 0.85);
}

/* ---------- 更新节奏 ---------- */
.page-about .ab-rhythm__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
  align-items: center;
}

.page-about .ab-rhythm__art img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(200deg, var(--ocean), var(--hibiscus));
}

.page-about .ab-rhythm__body > p:first-of-type {
  margin: 0 0 1.1rem;
  max-width: 36ch;
  line-height: 1.75;
}

.page-about .ab-rhythm__list {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  border-top: 2px dashed rgba(18, 20, 28, 0.25);
  padding-top: 1rem;
}

.page-about .ab-rhythm__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.15rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid rgba(18, 20, 28, 0.12);
}

.page-about .ab-rhythm__k {
  font-size: 0.8125rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--coral);
}

.page-about .ab-rhythm__v {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(18, 20, 28, 0.85);
}

.page-about .ab-rhythm__note {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: rgba(18, 20, 28, 0.72);
}

.page-about .ab-rhythm__note a {
  color: var(--ocean);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 两道关 ---------- */
.page-about .ab-gate {
  background: var(--cream);
}

.page-about .ab-gate__head > p:last-child {
  margin: 0;
  max-width: 48ch;
  line-height: 1.75;
  color: rgba(18, 20, 28, 0.82);
}

.page-about .ab-gate__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .ab-gate__card {
  padding: 1.25rem 1.25rem 1.35rem;
  background: var(--paper);
  border: var(--ab-ink-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
  position: relative;
}

.page-about .ab-gate__card--two {
  background: linear-gradient(155deg, var(--paper) 40%, #FFE6DA 100%);
}

.page-about .ab-gate__card--three {
  background: var(--night);
  color: var(--cream);
}

.page-about .ab-gate__step {
  display: inline-block;
  margin-bottom: 0.6rem;
  padding: 0.18rem 0.65rem;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
}

.page-about .ab-gate__card--three .ab-gate__step {
  border-color: var(--gold);
  background: transparent;
  color: var(--gold);
}

.page-about .ab-gate__card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.0625rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
  font-weight: 900;
}

.page-about .ab-gate__card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(18, 20, 28, 0.82);
}

.page-about .ab-gate__card--three p {
  color: rgba(255, 246, 236, 0.86);
}

/* ---------- 海南 ---------- */
.page-about .ab-island {
  background: linear-gradient(170deg, var(--ocean) 0%, var(--night) 100%);
  color: var(--cream);
}

.page-about .ab-island__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
  align-items: start;
}

.page-about .ab-island__lead .cy-kicker {
  color: var(--gold);
}

.page-about .ab-island__lead h2 {
  color: var(--cream);
}

.page-about .ab-island__lead p {
  margin: 0 0 1.25rem;
  max-width: 38ch;
  line-height: 1.75;
  color: rgba(255, 246, 236, 0.86);
}

.page-about .ab-island__facts {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.page-about .ab-island__fact {
  padding: 0.9rem 1rem;
  border: 2px solid rgba(255, 246, 236, 0.28);
  border-radius: var(--r-sm) var(--r-lg) var(--r-lg) var(--r-sm);
  background: rgba(11, 27, 58, 0.42);
}

.page-about .ab-island__fact dt {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.page-about .ab-island__fact dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--cream);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .ab-gate__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-gate__card--three {
    grid-column: 1 / -1;
  }

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

  .page-about .ab-rhythm__list li {
    grid-template-columns: minmax(7rem, 9rem) 1fr;
    align-items: baseline;
    gap: 0.75rem;
  }
}

@media (min-width: 880px) {
  .page-about .ab-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

  .page-about .ab-deck {
    position: relative;
    display: block;
    min-height: 470px;
  }

  .page-about .ab-deck__card {
    position: absolute;
    width: min(262px, 74%);
    transition: transform 220ms var(--ease);
  }

  .page-about .ab-deck__card:nth-child(1) {
    top: 0;
    left: 3%;
    transform: rotate(-3deg);
  }

  .page-about .ab-deck__card:nth-child(2) {
    top: 104px;
    left: 29%;
    transform: rotate(2deg);
  }

  .page-about .ab-deck__card:nth-child(3) {
    top: 212px;
    left: 0;
    transform: rotate(-1.5deg);
  }

  .page-about .ab-deck__card:nth-child(4) {
    top: 316px;
    left: 25%;
    transform: rotate(3deg);
  }

  .page-about .ab-deck__card:hover {
    transform: rotate(0deg) translateY(-4px);
  }

  .page-about .ab-origin__inner {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }

  .page-about .ab-team__stage {
    grid-template-columns: 1.5fr 0.9fr;
    align-items: stretch;
  }

  .page-about .ab-team__card--hibiscus { margin-left: 2rem; }
  .page-about .ab-team__card--palm { margin-left: 1rem; }
  .page-about .ab-team__card--ocean { margin-left: 3rem; }

  .page-about .ab-team__hint {
    flex-basis: auto;
    margin-left: 0.35rem;
  }

  .page-about .ab-rhythm__inner {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-about .ab-gate__card--three {
    grid-column: auto;
  }

  .page-about .ab-island__inner {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

@media (min-width: 1120px) {
  .page-about .ab-deck {
    min-height: 500px;
  }

  .page-about .ab-deck__card {
    width: min(300px, 76%);
  }

  .page-about .ab-deck__card:nth-child(2) { left: 32%; }
  .page-about .ab-deck__card:nth-child(4) { left: 28%; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-deck__card,
  .page-about .ab-team__chev,
  .page-about .ab-team__chev::after {
    transition: none;
  }

  .page-about .ab-deck__card:hover {
    transform: none;
  }
}