.page-about {
  --about-card-bg: linear-gradient(158deg, rgba(27, 37, 80, .92), rgba(18, 26, 61, .72));
  --about-soft-line: rgba(47, 243, 200, .34);
  display: block;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about .about-crumb {
  margin-top: clamp(12px, 3vw, 24px);
  margin-bottom: clamp(6px, 2vw, 12px);
}

/* ---------- 通用标题带 ---------- */
.page-about .about-head {
  margin-bottom: clamp(20px, 3.5vw, 34px);
}

.page-about .about-head--compact {
  margin-bottom: clamp(16px, 3vw, 24px);
}

.page-about .about-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}

.page-about .about-eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: linear-gradient(90deg, var(--neon-cyan), var(--electric-purple));
}

.page-about .about-head__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-about .about-head__desc {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(16px, 3vw, 32px) clamp(28px, 5vw, 52px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-about .about-hero__lead h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 8.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.018em;
  color: var(--text-primary);
  overflow-wrap: break-word;
}

.page-about .about-hero__lead h1 em {
  font-style: normal;
  background: linear-gradient(96deg, var(--neon-cyan), var(--electric-purple) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .about-hero__text {
  margin: 0 0 26px;
  max-width: 42ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text-secondary);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: linear-gradient(140deg, rgba(138, 92, 255, .42), rgba(47, 243, 200, .22) 58%, rgba(255, 138, 61, .18));
  box-shadow: var(--shadow-soft);
}

.page-about .about-hero__visual img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-about .about-hero__badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(10, 15, 44, .84);
  border: 1px solid var(--about-soft-line);
}

.page-about .about-hero__badge-num {
  font-size: 19px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: .02em;
}

.page-about .about-hero__badge-text {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--text-secondary);
}

/* ---------- 指标栅格 ---------- */
.page-about .about-stats {
  padding-block: clamp(26px, 5vw, 56px);
}

.page-about .about-stats__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-stats__item {
  min-width: 0;
  padding: 20px 18px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: var(--about-card-bg);
  transition: transform .3s ease, border-color .3s ease;
}

.page-about .about-stats__item:hover,
.page-about .about-stats__item:focus-within {
  transform: translateY(-4px);
  border-color: var(--about-soft-line);
}

.page-about .about-stats__num {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(24px, 5.8vw, 36px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--neon-cyan);
}

.page-about .about-stats__label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--text-primary);
}

.page-about .about-stats__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text-secondary);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding-block: clamp(30px, 5.5vw, 64px);
}

.page-about .about-years {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 12px;
  margin-bottom: 20px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-years::-webkit-scrollbar {
  display: none;
}

.page-about .about-year-tag {
  flex: 0 0 auto;
  text-decoration: none;
  transition: transform .22s ease, border-color .22s ease;
}

.page-about .about-year-tag:hover {
  transform: translateY(-3px);
  border-color: var(--about-soft-line);
}

.page-about .about-timeline__fig {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: linear-gradient(120deg, rgba(47, 243, 200, .16), rgba(138, 92, 255, .24));
}

.page-about .about-timeline__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 35 / 18;
  object-fit: cover;
}

.page-about .about-timeline__cap {
  padding: 12px 18px 14px;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--text-secondary);
  border-top: 1px solid var(--hairline);
  background: rgba(10, 15, 44, .5);
}

.page-about .about-line {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-line::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--neon-cyan), var(--electric-purple) 68%, rgba(91, 47, 214, 0) 100%);
}

.page-about .about-line__item {
  position: relative;
  padding: 0 0 32px 34px;
  min-width: 0;
}

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

.page-about .about-line__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-950);
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 0 4px rgba(47, 243, 200, .12);
  transition: background .3s ease, box-shadow .3s ease;
}

.page-about .about-line__item.is-active::before {
  background: var(--neon-cyan);
  box-shadow: 0 0 0 7px rgba(47, 243, 200, .2);
}

.page-about .about-line__year {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-about .about-line__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 3.4vw, 22px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  transition: color .3s ease;
}

.page-about .about-line__item.is-active .about-line__title {
  color: var(--neon-cyan);
}

.page-about .about-line__text {
  margin: 0 0 10px;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-about .about-line__keep {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--neon-teal);
}

/* ---------- 内容治理 ---------- */
.page-about .about-gov {
  padding-block: clamp(30px, 5.5vw, 64px);
}

.page-about .about-gov__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-about .about-gov__steps {
  min-width: 0;
}

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

.page-about .about-steps__item {
  position: relative;
  padding: 18px 20px 18px 66px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: rgba(18, 26, 61, .6);
}

.page-about .about-steps__no {
  position: absolute;
  left: 20px;
  top: 19px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--electric-purple);
}

.page-about .about-steps__item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-steps__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text-secondary);
}

.page-about .about-gov__cycle {
  margin: 20px 0 0;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--amber);
  background: rgba(255, 194, 75, .08);
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-primary);
}

.page-about .about-gov__fig {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: linear-gradient(160deg, rgba(138, 92, 255, .3), rgba(47, 243, 200, .18));
}

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

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-block: clamp(30px, 5.5vw, 64px);
}

.page-about .about-team__grid {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-team__item {
  min-width: 0;
  padding: 20px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: rgba(18, 26, 61, .55);
}

.page-about .about-team__item:nth-child(odd) {
  border-top: 2px solid var(--electric-purple);
}

.page-about .about-team__item:nth-child(even) {
  border-top: 2px solid var(--neon-teal);
}

.page-about .about-team__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-team__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-about .about-team__foot {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-about .about-team__foot a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 200, .45);
}

.page-about .about-team__foot a:hover {
  color: var(--amber);
  border-bottom-color: rgba(255, 194, 75, .6);
}

/* ---------- 移动端 / 网页版对照 ---------- */
.page-about .about-compare {
  padding-block: clamp(30px, 5.5vw, 64px);
}

.page-about .about-compare__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-compare__col {
  min-width: 0;
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .about-compare__col--app {
  background: linear-gradient(158deg, rgba(47, 243, 200, .17), rgba(138, 92, 255, .18));
  border-color: var(--about-soft-line);
}

.page-about .about-compare__col--web {
  background: linear-gradient(158deg, rgba(27, 37, 80, .88), rgba(18, 26, 61, .62));
}

.page-about .about-compare__title {
  margin: 0;
  font-size: clamp(19px, 3.4vw, 24px);
  font-weight: 800;
  color: var(--text-primary);
}

.page-about .about-compare__col--app .about-compare__title {
  color: var(--neon-cyan);
}

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

.page-about .about-compare__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text-secondary);
}

.page-about .about-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--neon-teal);
}

.page-about .about-compare__col--web .about-compare__list li::before {
  background: var(--electric-purple);
}

.page-about .about-compare__col .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 为什么选择 ---------- */
.page-about .about-why {
  padding-block: clamp(30px, 5.5vw, 64px);
}

.page-about .about-why__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-why__item {
  min-width: 0;
  padding: 20px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: linear-gradient(170deg, rgba(10, 15, 44, .9), rgba(18, 26, 61, .7));
}

.page-about .about-why__no {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--amber);
}

.page-about .about-why__title {
  margin: 0 0 7px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-why__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ---------- 收尾行动 ---------- */
.page-about .about-cta {
  padding-block: clamp(30px, 5.5vw, 64px) clamp(20px, 4vw, 40px);
}

.page-about .about-cta__panel {
  padding: clamp(26px, 5vw, 48px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-soft-line);
  background: linear-gradient(132deg, rgba(138, 92, 255, .28), rgba(47, 243, 200, .15) 58%, rgba(255, 138, 61, .17));
  box-shadow: var(--shadow-lift);
}

.page-about .about-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.4vw, 34px);
  line-height: 1.24;
  color: var(--text-primary);
}

.page-about .about-cta__text {
  margin: 0 0 24px;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .about-stats__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-why__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }

  .page-about .about-hero__visual {
    aspect-ratio: 16 / 11;
  }

  .page-about .about-gov__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

  .page-about .about-gov__fig {
    position: sticky;
    top: 108px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .about-compare__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-line {
    padding-left: 8px;
  }

  .page-about .about-line__item {
    padding-left: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stats__item,
  .page-about .about-year-tag,
  .page-about .about-line__item::before,
  .page-about .about-line__title {
    transition: none;
  }
}