.page-about {
  --about-rule: rgba(201, 186, 255, 0.14);
  --about-soft: rgba(245, 248, 255, 0.84);
  --about-dim: rgba(245, 248, 255, 0.62);
  position: relative;
  padding-bottom: clamp(42px, 7vw, 96px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  display: grid;
  gap: clamp(20px, 3.4vw, 38px);
  padding-top: clamp(20px, 4vw, 44px);
  padding-bottom: clamp(22px, 4vw, 46px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(201, 186, 255, 0.055) 1px, transparent 1px);
  background-size: clamp(58px, 11vw, 132px) 100%;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0));
  pointer-events: none;
  z-index: 0;
}

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

.page-about .breadcrumbs {
  grid-column: 1 / -1;
  font-size: 12px;
}

.page-about .about-hero__body h1 {
  margin: 12px 0 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 8.4vw, 76px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--white);
  text-shadow: 0 0 26px rgba(123, 77, 255, 0.42);
}

.page-about .about-hero__intro {
  margin: clamp(14px, 2.2vw, 22px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.82;
  color: var(--about-soft);
}

.page-about .about-hero__link {
  margin: 18px 0 0;
  font-size: 14px;
}

/* 首屏数据条 */
.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}

.page-about .about-facts__item {
  background: var(--ink-800);
  padding: 14px 16px;
  transition: background 0.28s var(--ease);
}

.page-about .about-facts__item:hover {
  background: var(--ink-700);
}

.page-about .about-facts dt {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-about .about-facts dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 28px);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-facts dd small {
  font-size: 12px;
  color: var(--violet-soft);
  margin-left: 2px;
}

/* ---------- 首屏大图 ---------- */
.page-about .about-visual {
  margin: 0 auto;
  padding-bottom: clamp(22px, 4vw, 48px);
}

.page-about .about-visual__media {
  position: relative;
  display: block;
  border: 1px solid var(--line-strong);
  border-radius: 3px 34px 3px 3px;
  overflow: hidden;
}

.page-about .about-visual__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(45, 245, 214, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(45, 245, 214, 0.1) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-about .about-visual__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 900;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.04);
}

.page-about .about-visual__cap {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec {
  position: relative;
  padding-top: clamp(34px, 6vw, 74px);
  padding-bottom: clamp(34px, 6vw, 74px);
}

.page-about .about-sec--band {
  margin-top: clamp(10px, 2vw, 20px);
  margin-bottom: clamp(10px, 2vw, 20px);
  padding-left: clamp(24px, 5vw, 52px);
  padding-right: clamp(24px, 5vw, 52px);
  border: 1px solid var(--about-rule);
  border-radius: 3px 44px 3px 3px;
  background: linear-gradient(150deg, rgba(123, 77, 255, 0.16), rgba(26, 16, 51, 0.5) 58%, rgba(7, 7, 13, 0) 100%);
}

.page-about .about-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 2px 14px;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-about .about-head .section-index {
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-family: var(--font-display);
  font-size: clamp(32px, 5.6vw, 56px);
  font-weight: 700;
  line-height: 0.82;
  color: transparent;
  -webkit-text-stroke: 1px rgba(201, 186, 255, 0.42);
}

.page-about .about-head .eyebrow {
  grid-column: 2;
  margin: 0;
}

.page-about .about-head__title {
  grid-column: 2;
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 24ch;
}

.page-about .about-sec p {
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.82;
  color: var(--about-soft);
}

.page-about .about-lede {
  max-width: 64ch;
  margin: 0 0 clamp(14px, 2.4vw, 22px);
}

/* 双栏 */
.page-about .about-cols {
  display: grid;
  gap: clamp(20px, 3.2vw, 34px);
}

.page-about .about-cols__main .prose p:last-child {
  margin-bottom: 0;
}

/* 侧栏提示 */
.page-about .about-note {
  border-left: 2px solid var(--cyan);
  padding: 2px 0 2px 16px;
}

.page-about .about-note__k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan) !important;
}

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

.page-about .about-note li {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--about-dim);
}

.page-about .about-note li b {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--violet-soft);
}

/* ---------- 时间轴 ---------- */
.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-about .about-tl__item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  outline: none;
  transition: transform 0.28s var(--ease);
}

.page-about .about-tl__item:hover,
.page-about .about-tl__item:focus-within {
  transform: translateX(4px);
}

.page-about .about-tl__item:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 6px;
  border-radius: 6px;
}

.page-about .about-tl__mark {
  padding-top: 2px;
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--cyan);
}

.page-about .about-tl__body {
  position: relative;
  padding-left: 18px;
  border-left: 1px solid var(--line-strong);
}

.page-about .about-tl__body::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-tl__item:hover .about-tl__body::before,
.page-about .about-tl__item:focus-within .about-tl__body::before {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(45, 245, 214, 0.16);
}

.page-about .about-tl__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-tl__body p {
  margin: 0;
  max-width: 66ch;
}

.page-about .about-tl__more {
  margin-top: 8px !important;
  font-size: 13.5px !important;
  color: var(--about-dim) !important;
  transition: color 0.25s var(--ease);
}

.page-about .about-tl__item:hover .about-tl__more,
.page-about .about-tl__item:focus-within .about-tl__more {
  color: var(--violet-soft) !important;
}

/* ---------- 内容生产 ---------- */
.page-about .about-cols__side {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
  align-content: start;
}

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

.page-about .about-inline img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 700;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: 24px 3px 24px 3px;
}

.page-about .about-inline__cap {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--mute);
}

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

.page-about .about-bars__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 4px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--about-dim);
}

.page-about .about-bars__num {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-bars__track {
  grid-column: 1 / -1;
  display: block;
  height: 5px;
  border-radius: 999px;
  background: rgba(201, 186, 255, 0.13);
  overflow: hidden;
}

.page-about .about-bars__fill {
  display: block;
  height: 100%;
  width: var(--w, 50%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}

.page-about .about-team__cell {
  background: var(--ink-800);
  padding: clamp(16px, 2.6vw, 24px);
  transition: background 0.28s var(--ease);
}

.page-about .about-team__cell:hover {
  background: var(--ink-700);
}

.page-about .about-team__num {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1;
  color: var(--violet-soft);
}

.page-about .about-team__cell h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-about .about-team__cell p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--about-dim);
}

.page-about .about-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
}

.page-about .about-flow span {
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--mute);
}

.page-about .about-flow span:last-child {
  border-color: rgba(45, 245, 214, 0.55);
  color: var(--cyan);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

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

.page-about .about-eco__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: 3px 32px 3px 32px;
}

.page-about .about-eco__media figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-about .about-eco__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}

.page-about .about-eco__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 2px 12px;
  padding: 14px 16px;
  background: var(--ink-800);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .about-eco__item:hover {
  background: var(--ink-700);
  transform: translateX(3px);
}

.page-about .about-eco__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-eco__name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-eco__desc {
  grid-column: 2;
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.68;
  color: var(--about-dim);
}

.page-about .about-eco__more {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  max-width: 68ch;
  font-size: 14px !important;
}

/* ---------- 覆盖与荣誉 ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 16px);
}

.page-about .about-stat {
  padding: clamp(14px, 2.2vw, 20px);
  border: 1px solid var(--about-rule);
  border-radius: 3px 22px 3px 3px;
  background: linear-gradient(160deg, rgba(45, 245, 214, 0.08), rgba(17, 17, 27, 0.92));
}

.page-about .about-stat__v {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 32px);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-stat__v small {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--violet-soft);
  margin-left: 3px;
}

.page-about .about-stat__l {
  margin: 9px 0 0;
  font-size: 12.5px;
  line-height: 1.66;
  color: var(--about-dim);
}

.page-about .about-honor {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 70ch;
  font-size: 14px !important;
  color: var(--about-soft) !important;
}

.page-about .about-links {
  margin: 14px 0 0;
  max-width: 70ch;
  font-size: 14px !important;
  color: var(--about-dim) !important;
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  position: relative;
  margin-top: clamp(28px, 5vw, 56px);
  padding: clamp(22px, 4vw, 46px);
  border: 1px solid var(--line-strong);
  border-radius: 3px 48px 3px 3px;
  background: linear-gradient(135deg, rgba(123, 77, 255, 0.3), rgba(26, 16, 51, 0.72) 55%, rgba(7, 7, 13, 0.95));
  overflow: hidden;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(45, 245, 214, 0.22), transparent 68%);
  pointer-events: none;
}

.page-about .about-cta h2 {
  position: relative;
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.8vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-cta p {
  position: relative;
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .about-cta__acts {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

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

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

  .page-about .about-tl__item {
    grid-template-columns: 72px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.32fr) minmax(250px, 0.68fr);
    align-items: end;
  }

  .page-about .about-hero__body {
    padding-bottom: 6px;
  }

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

  .page-about .about-cols {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-cols__main .prose {
    max-width: 68ch;
  }

  .page-about .about-note {
    margin-top: 4px;
  }

  .page-about .about-eco {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-about .about-team {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-about .about-tl__item {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 10px;
  }

  .page-about .about-tl__body {
    padding-left: 14px;
  }

  .page-about .about-eco__item,
  .page-about .about-team__cell {
    padding: 13px 14px;
  }

  .page-about .about-cta__acts .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

.page-about {
  --w: 1rem;
}