/* ===== 品牌档案页 page-about ===== */
.page-about {
  --ab-body: rgba(245, 248, 255, .82);
  --ab-line: rgba(245, 248, 255, .13);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 92px);
  background:
    radial-gradient(880px 520px at 82% -6%, rgba(34, 224, 208, .09), transparent 60%),
    radial-gradient(720px 460px at 4% 6%, rgba(255, 106, 31, .09), transparent 58%);
}

.page-about .jh-eyebrow,
.page-about .jh-title-xl,
.page-about .jh-title-lg,
.page-about .jh-title-md,
.page-about .jh-lede,
.page-about .jh-note {
  margin: 0;
}

.page-about [id] {
  scroll-margin-top: calc(var(--jh-header-h, 100px) + 24px);
}

/* 面包屑与首屏 */
.page-about .jh-breadcrumb {
  margin-top: clamp(16px, 2.6vw, 28px);
}

.page-about .ab-hero {
  padding-top: clamp(18px, 2.8vw, 34px);
}

.page-about .ab-hero__head {
  display: grid;
  gap: 22px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

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

.page-about .ab-hero__stamp {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 16px;
  border-left: 2px solid var(--jh-orange);
  align-self: start;
}

.page-about .ab-hero__stampnum {
  font-family: var(--jh-f-mono);
  font-size: clamp(34px, 7vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: var(--jh-orange);
  letter-spacing: -.02em;
}

.page-about .ab-hero__stampunit {
  font-family: var(--jh-f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--jh-mist);
}

@media (min-width: 860px) {
  .page-about .ab-hero__head {
    grid-template-columns: minmax(0, 1fr) 200px;
    align-items: end;
  }
}

.page-about .ab-banner {
  margin: 0;
  position: relative;
  border-radius: var(--jh-r-lg);
  overflow: hidden;
  border: 1px solid var(--jh-glass-line);
  aspect-ratio: 16 / 9;
  min-height: 210px;
  max-height: 46vh;
  background: linear-gradient(160deg, var(--jh-indigo-2), var(--jh-violet));
}

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

.page-about .ab-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 16, 48, .12), rgba(10, 16, 48, .78));
}

@media (min-width: 760px) {
  .page-about .ab-banner {
    aspect-ratio: 16 / 6;
  }
}

.page-about .ab-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-about .ab-jump a {
  display: inline-block;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--jh-glass-line);
  background: var(--jh-glass);
  font-family: var(--jh-f-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  color: var(--jh-mist);
  transition: color .2s var(--jh-ease), border-color .2s var(--jh-ease);
}

.page-about .ab-jump a:hover {
  color: var(--jh-snow);
  border-color: rgba(34, 224, 208, .55);
}

.page-about .ab-jump a:focus-visible {
  outline: 2px solid var(--jh-cyan);
  outline-offset: 2px;
}

/* 纵向路径轴骨架 */
.page-about .ab-ledger {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 32px);
}

@media (min-width: 900px) {
  .page-about .ab-ledger {
    grid-template-columns: 88px minmax(0, 1fr);
  }
}

.page-about .ab-ledger__rail {
  position: relative;
  min-height: 100%;
}

.page-about .ab-ledger__rail::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 6px;
  bottom: -6px;
  width: 1px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, var(--ab-line), var(--ab-line) 82%, transparent);
}

.page-about .ab-ledger__node {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 12px;
  height: 12px;
  margin-left: -6px;
  border-radius: 50%;
  background: var(--jh-orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 31, .16), 0 0 18px rgba(255, 106, 31, .55);
}

.page-about .ab-ledger__node--cyan {
  background: var(--jh-cyan);
  box-shadow: 0 0 0 4px rgba(34, 224, 208, .16), 0 0 18px rgba(34, 224, 208, .5);
}

.page-about .ab-ledger__node--gold {
  background: var(--jh-gold);
  box-shadow: 0 0 0 4px rgba(243, 181, 63, .18), 0 0 18px rgba(243, 181, 63, .5);
}

.page-about .ab-ledger__main {
  display: grid;
  gap: clamp(12px, 1.8vw, 20px);
  align-content: start;
  min-width: 0;
}

/* 起点区 */
.page-about .ab-cols {
  display: grid;
  gap: 14px;
}

@media (min-width: 860px) {
  .page-about .ab-cols {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

.page-about .ab-cols p {
  margin: 0;
  max-width: 52ch;
  line-height: 1.85;
  color: var(--ab-body);
}

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

@media (min-width: 720px) {
  .page-about .ab-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .ab-facts li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: var(--jh-r);
  border: 1px solid var(--jh-glass-line);
  background: var(--jh-glass);
}

.page-about .ab-facts__n {
  font-family: var(--jh-f-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--jh-cyan);
  letter-spacing: -.01em;
}

.page-about .ab-facts__t {
  font-size: 14px;
  line-height: 1.75;
  color: var(--jh-mist);
}

/* 团队与分工 */
.page-about .ab-team {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: 4px;
}

@media (min-width: 900px) {
  .page-about .ab-team {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }
}

.page-about .ab-team__figure {
  margin: 0;
  border-radius: var(--jh-r-lg);
  overflow: hidden;
  border: 1px solid var(--jh-glass-line);
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, var(--jh-indigo-2), var(--jh-violet));
}

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

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

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

.page-about .ab-tcard {
  display: grid;
  gap: 8px;
  padding: 18px 18px 20px;
  position: relative;
  overflow: hidden;
}

.page-about .ab-tcard::before {
  content: "";
  position: absolute;
  top: 0;
  left: 18px;
  right: 18px;
  height: 1px;
  background: linear-gradient(90deg, rgba(245, 248, 255, .28), transparent);
}

.page-about .ab-tcard__n {
  font-family: var(--jh-f-mono);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--jh-orange);
}

.page-about .ab-tcard:nth-child(2) .ab-tcard__n { color: var(--jh-cyan); }
.page-about .ab-tcard:nth-child(3) .ab-tcard__n { color: var(--jh-gold); }
.page-about .ab-tcard:nth-child(4) .ab-tcard__n { color: var(--jh-green); }

.page-about .ab-tcard p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ab-body);
}

/* 版本演进 */
.page-about .ab-band {
  margin: 4px 0 0;
  position: relative;
  border-radius: var(--jh-r);
  overflow: hidden;
  border: 1px solid var(--jh-glass-line);
  aspect-ratio: 16 / 9;
  background: linear-gradient(120deg, var(--jh-violet), var(--jh-indigo-2));
}

.page-about .ab-band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  opacity: .9;
}

.page-about .ab-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(10, 16, 48, .82), rgba(10, 16, 48, .06) 46%, rgba(10, 16, 48, .7));
}

@media (min-width: 760px) {
  .page-about .ab-band {
    aspect-ratio: 24 / 7;
  }
}

.page-about .ab-vtabs {
  display: grid;
  gap: 0;
  margin-top: 6px;
}

.page-about .ab-vtabs [role="tablist"] {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--ab-line);
}

.page-about .ab-vtabs .jh-tab {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  padding: 16px 6px 14px;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--jh-f-mono);
  font-weight: 700;
  font-size: clamp(15px, 2.6vw, 22px);
  letter-spacing: .02em;
  color: var(--jh-mist);
  transition: color .2s var(--jh-ease);
}

.page-about .ab-vtabs .jh-tab:hover {
  color: var(--jh-snow);
}

.page-about .ab-vtabs .jh-tab[aria-selected="true"] {
  color: var(--jh-snow);
}

.page-about .ab-vtabs .jh-tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -1px;
  height: 2px;
  background: var(--jh-cyan);
  box-shadow: 0 0 14px rgba(34, 224, 208, .75);
}

.page-about .ab-vtabs .jh-tab:focus-visible {
  outline: 2px solid var(--jh-cyan);
  outline-offset: -2px;
}

.page-about .ab-vtabs .jh-panel {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px) 0 0;
}

.page-about .ab-vtabs .jh-panel[hidden] {
  display: none;
}

.page-about .ab-vtabs .jh-panel p {
  margin: 0;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--ab-body);
}

/* 服务半径 */
.page-about .ab-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .ab-stats li {
  display: grid;
  gap: 6px;
  padding: 18px;
  border-radius: var(--jh-r);
  border: 1px solid rgba(34, 224, 208, .28);
  background: linear-gradient(150deg, rgba(34, 224, 208, .12), rgba(34, 224, 208, .02));
}

.page-about .ab-stats__n {
  font-family: var(--jh-f-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--jh-cyan);
  letter-spacing: -.01em;
}

.page-about .ab-stats__t {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--jh-mist);
}

.page-about .ab-cities {
  display: grid;
  gap: 18px;
  margin-top: 4px;
}

@media (min-width: 760px) {
  .page-about .ab-cities {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }
}

.page-about .ab-cities__label {
  margin: 0 0 10px;
  font-family: var(--jh-f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--jh-orange);
}

.page-about .ab-chip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .ab-chip li {
  position: relative;
  padding: 7px 13px 7px 25px;
  border-radius: 999px;
  border: 1px solid var(--jh-glass-line);
  background: var(--jh-glass);
  font-size: 13px;
  color: var(--ab-body);
}

.page-about .ab-chip li::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--jh-cyan);
  box-shadow: 0 0 8px rgba(34, 224, 208, .7);
}

.page-about .ab-cities__col:nth-child(2) .ab-chip li::before {
  background: var(--jh-gold);
  box-shadow: 0 0 8px rgba(243, 181, 63, .7);
}

/* 协作生态 */
.page-about .ab-partner-grid {
  display: grid;
  gap: 16px;
  margin-top: 4px;
}

@media (min-width: 760px) {
  .page-about .ab-partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .ab-pcard {
  display: grid;
  gap: 12px;
  padding: 22px;
  align-content: start;
}

.page-about .ab-pcard p {
  margin: 0;
  line-height: 1.85;
  color: var(--ab-body);
}

/* 结尾 */
.page-about .ab-next__box {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--jh-r-lg);
  border: 1px solid var(--jh-glass-line);
  background:
    radial-gradient(520px 240px at 88% 0%, rgba(255, 106, 31, .18), transparent 62%),
    linear-gradient(150deg, rgba(20, 28, 74, .96), rgba(36, 27, 77, .88));
}

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

@media (max-width: 480px) {
  .page-about .ab-next__links {
    flex-direction: column;
    align-items: stretch;
  }

  .page-about .ab-next__links .jh-btn {
    text-align: center;
    justify-content: center;
  }
}

.page-about .ab-next .jh-note {
  font-size: 13px;
  line-height: 1.85;
  color: var(--jh-mist);
}