.page-about {
  --tl-year-w: 0px;
  background: var(--bg);
  color: var(--text);
  position: relative;
  font-family: var(--font-body);
}

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

/* ---------------- 首屏 ---------------- */
.page-about .ab-hero {
  position: relative;
  padding-top: calc(var(--hdr-h) + clamp(26px, 5vw, 54px));
  padding-bottom: clamp(32px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -16%;
  width: min(66vw, 660px);
  height: min(66vw, 660px);
  background: radial-gradient(circle at 50% 50%, rgba(0, 229, 160, 0.20), rgba(0, 229, 160, 0) 62%);
  pointer-events: none;
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  left: -8%;
  top: -30%;
  width: 44%;
  height: 150%;
  background: linear-gradient(135deg, rgba(255, 77, 46, 0.15), rgba(255, 77, 46, 0) 70%);
  transform: skewX(-16deg);
  pointer-events: none;
}

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

.page-about .ab-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(22px, 4vw, 40px);
}

.page-about .ab-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6.4vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--white);
  margin: 14px 0 20px;
  text-wrap: balance;
}

.page-about .ab-hero h1 em {
  font-style: normal;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--neon);
}

.page-about .ab-hero__ticker {
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--neon);
  background: linear-gradient(155deg, var(--ink-900), var(--ink-950) 88%);
  box-shadow: var(--shadow-hard);
  padding: 18px 20px 20px;
}

.page-about .ab-hero__ticker-cap {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-faint);
}

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

.page-about .ab-ticks li {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 11px;
  border-bottom: 1px dashed var(--line);
  font-size: 0.93rem;
  line-height: 1.5;
  color: var(--text-dim);
}

.page-about .ab-ticks li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .ab-ticks .sk-num {
  font-family: var(--font-mono);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--neon);
}

/* ---------------- 品牌起源 ---------------- */
.page-about .ab-origin {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

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

.page-about .ab-origin__fig .sk-figure__media {
  aspect-ratio: 4 / 5;
}

.page-about .ab-origin__text h2 {
  margin-top: 0;
}

.page-about .ab-pull {
  margin: 22px 0 22px;
  padding-left: 16px;
  border-left: 3px solid var(--neon);
  font-size: 1.05rem;
  line-height: 1.62;
  color: var(--text);
}

/* ---------------- 时间线 ---------------- */
.page-about .timeline {
  margin-top: clamp(28px, 4vw, 46px);
  display: grid;
}

.page-about .tl-item {
  position: relative;
  border-top: 1px solid var(--line);
}

.page-about .tl-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .tl-item__summary {
  position: relative;
  display: grid;
  gap: 10px;
  padding: clamp(18px, 3vw, 26px) 42px clamp(18px, 3vw, 26px) 0;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.25s var(--ease);
}

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

.page-about .tl-item__summary::marker {
  content: "";
}

.page-about .tl-item__summary:hover {
  background: rgba(0, 229, 160, 0.05);
}

.page-about .tl-item__summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: clamp(16px, 3vw, 24px);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--neon);
  transition: color 0.25s var(--ease);
}

.page-about .tl-item[open] .tl-item__summary::after {
  content: "\2212";
  color: var(--flare);
}

.page-about .tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 7vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
  transition: color 0.25s var(--ease);
}

.page-about .tl-item[open] .tl-year {
  color: var(--neon);
}

.page-about .tl-meta {
  display: grid;
  gap: 9px;
  align-content: start;
}

.page-about .tl-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.page-about .tl-title {
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 3.2vw, 1.7rem);
  line-height: 1.16;
  letter-spacing: -0.005em;
  color: var(--white);
}

.page-about .tl-body {
  max-width: 68ch;
  padding-bottom: clamp(20px, 3vw, 30px);
}

.page-about .tl-body p {
  margin: 0 0 12px;
  font-size: 1rem;
  line-height: 1.72;
  color: var(--text-dim);
}

/* ---------------- 服务规模 ---------------- */
.page-about .ab-split {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-about .ab-split__text h2 {
  margin-top: 10px;
}

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

.page-about .ab-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-about .ab-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 3vw, 26px);
  border: 2px solid var(--line-strong);
  background: linear-gradient(160deg, var(--ink-900), var(--ink-950));
  box-shadow: var(--shadow-hard);
}

.page-about .ab-stat--lead {
  border-color: rgba(0, 229, 160, 0.55);
}

.page-about .ab-stat--wide {
  border-color: rgba(45, 156, 219, 0.45);
}

.page-about .ab-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 4.6vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .ab-stat--lead .ab-stat__num {
  color: var(--neon);
}

.page-about .ab-stat__unit {
  font-size: 0.44em;
  margin-left: 4px;
  color: var(--silver);
  letter-spacing: 0;
}

.page-about .ab-stat__cap {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-dim);
}

/* ---------------- 团队与资质 ---------------- */
.page-about .ab-team {
  border: 2px solid var(--ink-950);
  box-shadow: 10px 10px 0 0 rgba(0, 229, 160, 0.20);
  padding: clamp(22px, 4vw, 46px);
}

.page-about .ab-team .sk-panel__title {
  margin-top: 0;
}

.page-about .ab-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .ab-fact {
  padding-top: 14px;
  border-top: 1px solid rgba(10, 14, 23, 0.22);
}

.page-about .ab-fact__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(10, 14, 23, 0.58);
}

.page-about .ab-fact__value {
  display: block;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.52;
  color: var(--ink-950);
}

/* ---------------- 合作生态 ---------------- */
.page-about .ab-eco {
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.page-about .ab-eco__item {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 8px 16px;
  align-items: baseline;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-eco__idx {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--flare);
}

.page-about .ab-eco__num {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2.05rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--white);
}

.page-about .ab-eco__desc {
  grid-column: 2;
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.62;
  color: var(--text-dim);
}

.page-about #ecosystem .sk-text {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------------- CTA ---------------- */
.page-about .ab-cta__box {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 48px);
  border: 2px solid var(--line-strong);
  background: linear-gradient(120deg, var(--ink-900) 0%, var(--ink-950) 64%);
  box-shadow: var(--shadow-panel);
}

.page-about .ab-cta__box::before {
  content: "";
  position: absolute;
  right: -12%;
  top: -45%;
  width: 44%;
  height: 190%;
  background: linear-gradient(135deg, rgba(255, 77, 46, 0.18), rgba(255, 77, 46, 0) 70%);
  transform: skewX(-18deg);
  pointer-events: none;
}

.page-about .ab-cta__box > * {
  position: relative;
  z-index: 1;
}

.page-about .ab-cta__box .sk-title {
  margin-top: 0;
}

.page-about .ab-cta__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------------- 响应式 ---------------- */
@media (min-width: 600px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .ab-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 28px;
  }
}

@media (min-width: 820px) {
  .page-about .timeline {
    --tl-year-w: 150px;
  }

  .page-about .tl-item__summary {
    grid-template-columns: var(--tl-year-w) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    padding: clamp(22px, 3vw, 30px) 52px clamp(22px, 3vw, 30px) 0;
  }

  .page-about .tl-item::before {
    content: "";
    position: absolute;
    left: calc(var(--tl-year-w) + 26px);
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(0, 229, 160, 0.5), rgba(45, 156, 219, 0.28) 55%, rgba(176, 184, 196, 0.10));
  }

  .page-about .tl-item__summary::before {
    content: "";
    position: absolute;
    left: calc(var(--tl-year-w) + 20px);
    top: 26px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--ink-950);
    border: 2px solid var(--neon);
    box-shadow: 0 0 16px -2px rgba(0, 229, 160, 0.9);
  }

  .page-about .tl-item[open] .tl-item__summary::before {
    background: var(--neon);
    box-shadow: 0 0 22px -2px rgba(0, 229, 160, 1);
  }

  .page-about .tl-body {
    padding-left: calc(var(--tl-year-w) + 40px);
  }

  .page-about .ab-eco__item {
    grid-template-columns: 2.6rem 11rem minmax(0, 1fr);
    gap: 0 20px;
  }

  .page-about .ab-eco__num {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .ab-eco__desc {
    grid-column: 3;
    grid-row: 1;
  }

  .page-about .ab-eco__idx {
    grid-row: 1;
  }
}

@media (min-width: 880px) {
  .page-about .ab-origin {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(34px, 5vw, 72px);
  }

  .page-about .ab-origin__fig {
    margin-top: 48px;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(28px, 4vw, 60px);
  }

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

  .page-about .ab-split__fig {
    transform: translateY(-18px);
  }
}

@media (min-width: 980px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .ab-stat--lead {
    grid-column: span 3;
  }

  .page-about .ab-stat--wide {
    grid-column: span 3;
  }

  .page-about .ab-stat--third {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item__summary,
  .page-about .tl-year {
    transition: none;
  }

  .page-about .ab-split__fig {
    transform: none;
  }
}
<<<END>>>