.page-about {
  --ab-cut: 18px;
  --ab-tl-gap: 30px;
  background: var(--wm-carbon);
  color: var(--wm-paper);
  font-family: var(--wm-font-body);
  overflow-x: clip;
}

.page-about h1,
.page-about h2,
.page-about h3,
.page-about p,
.page-about figure,
.page-about dl,
.page-about dd,
.page-about ul,
.page-about ol {
  margin: 0;
  padding: 0;
}

.page-about ul,
.page-about ol {
  list-style: none;
}

.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-about .ab-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--wm-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--wm-sage);
}

.page-about .ab-crumb a {
  color: var(--wm-sage);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--wm-ease), border-color 0.25s var(--wm-ease);
}

.page-about .ab-crumb a:hover,
.page-about .ab-crumb a:focus-visible {
  color: var(--wm-lime);
  border-color: var(--wm-lime);
}

.page-about .ab-crumb [aria-current="page"] {
  color: var(--wm-paper);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding-block: clamp(36px, 6vw, 72px) 0;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(184, 255, 61, 0.14), transparent 62%),
    radial-gradient(80% 70% at 92% 18%, rgba(94, 242, 194, 0.1), transparent 66%),
    var(--wm-ink);
  border-bottom: 1px solid var(--wm-line);
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(242, 245, 233, 0.035) 0 1px,
    transparent 1px 6px
  );
}

.page-about .ab-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  grid-template-columns: 1fr;
  padding-bottom: clamp(32px, 5vw, 56px);
}

.page-about .ab-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-family: var(--wm-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--wm-lime);
}

.page-about .ab-hero__kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--wm-lime);
  box-shadow: 0 0 12px var(--wm-lime);
}

.page-about .ab-hero__title {
  font-family: var(--wm-font-display);
  font-weight: 900;
  font-size: clamp(2.35rem, 9vw, 6.2rem);
  line-height: 0.94;
  letter-spacing: -0.03em;
  color: var(--wm-paper);
}

.page-about .ab-hero__title em {
  display: block;
  font-style: normal;
  color: var(--wm-lime);
}

.page-about .ab-hero__lead {
  max-width: 54ch;
  margin-top: clamp(18px, 3vw, 28px);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: #cfdbc9;
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .ab-hero__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--wm-line);
  background: var(--wm-green-mid);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--ab-cut)),
    calc(100% - var(--ab-cut)) 100%,
    0 100%
  );
}

.page-about .ab-hero__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.08);
}

.page-about .ab-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 31, 26, 0.1), rgba(11, 31, 26, 0.78));
  box-shadow: inset 0 0 0 1px rgba(184, 255, 61, 0.18);
}

/* ---------- 数字条 ---------- */
.page-about .ab-strip {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--wm-line);
  background: rgba(17, 22, 20, 0.72);
}

.page-about .ab-strip__inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--wm-line);
}

.page-about .ab-strip__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 16px;
  background: var(--wm-carbon);
}

.page-about .ab-strip__n {
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--wm-lime);
  line-height: 1.1;
}

.page-about .ab-strip__u {
  font-size: 0.62em;
  margin-left: 2px;
}

.page-about .ab-strip__l {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--wm-sage);
}

/* ---------- 通用区块 ---------- */
.page-about .ab-sec {
  padding-block: clamp(52px, 9vw, 104px);
  border-bottom: 1px solid var(--wm-line);
}

.page-about .ab-sec--ink {
  background:
    linear-gradient(180deg, var(--wm-ink), #0d241e 70%, var(--wm-ink));
}

.page-about .ab-sec--carbon {
  background: var(--wm-carbon);
}

.page-about .ab-sec--verify {
  background: linear-gradient(180deg, var(--wm-carbon), var(--wm-ink));
}

.page-about .ab-sechead {
  max-width: 62ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .ab-sechead__d {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--wm-sage);
}

.page-about .ab-h2 {
  font-family: var(--wm-font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--wm-paper);
}

.page-about .ab-lead {
  margin-top: clamp(16px, 2.6vw, 24px);
  font-size: clamp(16px, 1.5vw, 17px);
  line-height: 1.78;
  color: #cfdbc9;
}

.page-about .ab-text {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--wm-sage);
}

/* ---------- 为什么是档案 ---------- */
.page-about .ab-split {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: 1fr;
}

.page-about .ab-points {
  display: grid;
  gap: 14px;
}

.page-about .ab-point {
  position: relative;
  padding: 20px 20px 22px;
  background: linear-gradient(135deg, rgba(20, 53, 43, 0.92), rgba(17, 22, 20, 0.4));
  border: 1px solid var(--wm-line);
  border-left: 2px solid var(--wm-green-deep);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 14px),
    calc(100% - 14px) 100%,
    0 100%
  );
  transition: border-color 0.3s var(--wm-ease), transform 0.3s var(--wm-ease);
}

.page-about .ab-point:hover {
  border-color: var(--wm-green-deep);
  transform: translateY(-2px);
}

.page-about .ab-point__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--wm-pulse);
  margin-bottom: 8px;
}

.page-about .ab-point__t {
  font-family: var(--wm-font-display);
  font-size: clamp(1rem, 2.1vw, 1.15rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--wm-paper);
}

.page-about .ab-point__d {
  margin-top: 8px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--wm-sage);
}

/* ---------- 版本演进 ---------- */
.page-about .ab-tlfig {
  margin-bottom: clamp(30px, 4.5vw, 48px);
  overflow: hidden;
  border: 1px solid var(--wm-line);
  background: var(--wm-green-mid);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--ab-cut)),
    calc(100% - var(--ab-cut)) 100%,
    0 100%
  );
}

.page-about .ab-tlfig img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
  opacity: 0.9;
}

.page-about .ab-tl {
  position: relative;
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  padding-left: var(--ab-tl-gap);
}

.page-about .ab-tl::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--wm-lime),
    rgba(94, 242, 194, 0.72) 45%,
    var(--wm-line)
  );
  opacity: 0.65;
}

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

.page-about .ab-tl__dot {
  position: absolute;
  left: calc(var(--ab-tl-gap) * -1);
  top: 8px;
  width: 20px;
  height: 20px;
  background: var(--wm-ink);
  border: 2px solid var(--wm-lime);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  box-shadow: 0 0 14px rgba(184, 255, 61, 0.45);
}

.page-about .ab-tl__body {
  padding: clamp(16px, 3vw, 24px);
  background: linear-gradient(135deg, rgba(20, 53, 43, 0.88), rgba(17, 22, 20, 0.55));
  border: 1px solid var(--wm-line);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 16px),
    calc(100% - 16px) 100%,
    0 100%
  );
  transition: border-color 0.3s var(--wm-ease), background 0.3s var(--wm-ease);
}

.page-about .ab-tl__body:hover {
  border-color: var(--wm-green-deep);
  background: linear-gradient(135deg, rgba(30, 74, 59, 0.9), rgba(17, 22, 20, 0.6));
}

.page-about .ab-tl__year {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--wm-lime);
  margin-bottom: 10px;
}

.page-about .ab-tl__t {
  font-family: var(--wm-font-display);
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--wm-paper);
}

.page-about .ab-tl__d {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--wm-sage);
}

/* ---------- 资料覆盖 ---------- */
.page-about .ab-cov {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: 1fr;
}

.page-about .ab-cov__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--wm-line);
  border: 1px solid var(--wm-line);
  align-self: start;
}

.page-about .ab-big {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(16px, 3vw, 24px) clamp(10px, 2vw, 18px);
  background: linear-gradient(180deg, rgba(20, 53, 43, 0.75), var(--wm-carbon));
}

.page-about .ab-big__n {
  font-size: clamp(1.9rem, 5.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--wm-paper);
  border-bottom: 2px solid var(--wm-lime);
  padding-bottom: 6px;
  display: inline-block;
}

.page-about .ab-big__l {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--wm-sage);
}

.page-about .ab-facts {
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--wm-line);
  border: 1px solid var(--wm-line);
}

.page-about .ab-facts__item {
  display: grid;
  gap: 6px;
  padding: 18px 16px;
  background: var(--wm-carbon);
  transition: background 0.3s var(--wm-ease);
}

.page-about .ab-facts__item:hover {
  background: rgba(20, 53, 43, 0.6);
}

.page-about .ab-facts__no {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--wm-pulse);
}

.page-about .ab-facts__t {
  font-family: var(--wm-font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--wm-paper);
}

.page-about .ab-facts__d {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--wm-sage);
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  grid-template-columns: 1fr;
}

.page-about .ab-roles {
  display: grid;
  gap: 12px;
}

.page-about .ab-role {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 14px;
  padding: 15px 17px;
  background: linear-gradient(90deg, rgba(30, 74, 59, 0.55), rgba(17, 22, 20, 0.25));
  border: 1px solid var(--wm-line);
  cursor: default;
  transition: border-color 0.3s var(--wm-ease), background 0.3s var(--wm-ease),
    transform 0.3s var(--wm-ease);
}

.page-about .ab-role:hover,
.page-about .ab-role:focus-visible,
.page-about .ab-role:focus-within {
  border-color: var(--wm-lime);
  background: linear-gradient(90deg, rgba(30, 74, 59, 0.8), rgba(17, 22, 20, 0.3));
  transform: translateX(3px);
  outline: none;
}

.page-about .ab-role__name {
  font-family: var(--wm-font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--wm-paper);
}

.page-about .ab-role__count {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--wm-lime);
  white-space: nowrap;
}

.page-about .ab-role__desc {
  grid-column: 1 / -1;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--wm-sage);
  transition: max-height 0.38s var(--wm-ease), opacity 0.3s var(--wm-ease),
    margin-top 0.3s var(--wm-ease);
}

.page-about .ab-role:hover .ab-role__desc,
.page-about .ab-role:focus-visible .ab-role__desc,
.page-about .ab-role:focus-within .ab-role__desc {
  max-height: 140px;
  opacity: 1;
  margin-top: 6px;
}

.page-about .ab-team__media {
  overflow: hidden;
  border: 1px solid var(--wm-line);
  background: var(--wm-green-mid);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--ab-cut)),
    calc(100% - var(--ab-cut)) 100%,
    0 100%
  );
}

.page-about .ab-team__media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06);
  opacity: 0.92;
}

/* ---------- 合作生态 ---------- */
.page-about .ab-eco {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: 1fr;
}

.page-about .ab-eco__nums {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-self: start;
}

.page-about .ab-eco__num {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  border: 1px solid var(--wm-line);
  border-top: 2px solid var(--wm-pulse);
  background: rgba(20, 53, 43, 0.45);
}

.page-about .ab-eco__n {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--wm-lime);
}

.page-about .ab-eco__u {
  font-size: 0.6em;
  margin-left: 2px;
}

.page-about .ab-eco__l {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--wm-sage);
}

/* ---------- 认证通道 ---------- */
.page-about .ab-verify__panel {
  display: grid;
  gap: clamp(22px, 3.5vw, 36px);
  padding: clamp(24px, 4.5vw, 52px);
  border: 1px solid var(--wm-green-deep);
  background:
    radial-gradient(90% 140% at 100% 0%, rgba(184, 255, 61, 0.16), transparent 62%),
    linear-gradient(120deg, var(--wm-green-mid), var(--wm-ink));
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 28px),
    calc(100% - 28px) 100%,
    0 100%
  );
}

.page-about .ab-verify__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 收束 ---------- */
.page-about .ab-outro {
  padding-block: clamp(64px, 12vw, 140px);
  background: linear-gradient(180deg, var(--wm-ink), var(--wm-carbon));
}

.page-about .ab-outro__big {
  font-family: var(--wm-font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 6vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--wm-paper);
}

.page-about .ab-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .ab-outro__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 4px;
  font-size: 15px;
  color: var(--wm-sage);
  text-decoration: none;
  border-bottom: 1px solid var(--wm-line);
  transition: color 0.28s var(--wm-ease), border-color 0.28s var(--wm-ease);
}

.page-about .ab-outro__link::after {
  content: "→";
  font-family: var(--wm-font-mono);
  font-size: 13px;
  color: var(--wm-lime);
}

.page-about .ab-outro__link:hover,
.page-about .ab-outro__link:focus-visible {
  color: var(--wm-paper);
  border-color: var(--wm-lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .ab-strip__inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 820px) {
  .page-about .ab-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

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

  .page-about .ab-eco {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-about .ab-verify__panel {
    grid-template-columns: minmax(0, 1.35fr) auto;
    align-items: center;
  }

  .page-about .ab-verify__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-about .ab-facts {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-about .ab-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-about .ab-hero__media {
    align-self: end;
  }

  .page-about .ab-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    grid-template-areas:
      "intro media"
      "roles media";
    align-items: start;
  }

  .page-about .ab-team__intro {
    grid-area: intro;
  }

  .page-about .ab-roles {
    grid-area: roles;
  }

  .page-about .ab-team__media {
    grid-area: media;
    align-self: stretch;
  }

  .page-about .ab-team__media img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 320px;
  }
}

@media (hover: none) {
  .page-about .ab-role__desc {
    max-height: none;
    opacity: 1;
    margin-top: 6px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-point,
  .page-about .ab-role,
  .page-about .ab-tl__body,
  .page-about .ab-facts__item,
  .page-about .ab-outro__link {
    transition: none;
  }

  .page-about .ab-role:hover,
  .page-about .ab-point:hover {
    transform: none;
  }
}