.page-about {
  --about-hair: rgba(234, 242, 250, .14);
  --about-hair-2: rgba(234, 242, 250, .28);
  --about-body: rgba(234, 242, 250, .84);
  background: var(--ink);
  color: var(--ice);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 36px;
  border-bottom: 1px solid var(--about-hair);
  background:
    radial-gradient(130% 100% at 4% -22%, rgba(23, 225, 203, .22), transparent 56%),
    radial-gradient(105% 95% at 100% 122%, rgba(243, 178, 63, .16), transparent 58%),
    var(--ink);
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .45;
  background-image: linear-gradient(to right, rgba(234, 242, 250, .07) 1px, transparent 1px);
  background-size: 86px 100%;
}
.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}
.page-about .crumbs {
  margin: 0 0 22px;
  font-size: 12px;
}
.page-about .about-hero .label {
  margin: 0 0 16px;
}
.page-about .about-hero .h-hero {
  margin: 0;
  max-width: 15em;
}
.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 620px;
}

.page-about .stats-strip {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--about-hair);
  background: var(--about-hair);
}
.page-about .stats-strip__item {
  background: var(--ink-2);
  padding: 16px 14px;
  min-width: 0;
}
.page-about .stats-strip__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -.01em;
}
.page-about .stats-strip__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
  letter-spacing: .04em;
}

/* ---------- 区块头 ---------- */
.page-about .sec-head {
  max-width: 720px;
}
.page-about .sec-head .label {
  margin: 0 0 14px;
}
.page-about .sec-head .h-lg {
  margin: 0;
}
.page-about .sec-head .prose {
  margin: 16px 0 0;
}
.page-about .prose {
  color: var(--about-body);
}
.page-about .prose a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
}
.page-about .prose a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  margin-top: 34px;
}
.page-about .tl-rail {
  display: none;
}
.page-about .tl-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--about-hair);
}
.page-about .rail__link {
  position: relative;
  display: block;
  padding: 9px 0 9px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-about .rail__link::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: transparent;
  transition: background .2s var(--ease);
}
.page-about .rail__link:hover {
  color: var(--ice);
}
.page-about .rail__link[aria-current="true"] {
  color: var(--cyan);
}
.page-about .rail__link[aria-current="true"]::before {
  background: var(--cyan);
}

.page-about .tl-stages {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.page-about .tl-stage {
  position: relative;
  padding: 0 0 40px;
}
.page-about .tl-stage:last-child {
  padding-bottom: 0;
}
.page-about .tl-stage__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}
.page-about .tl-stage__year {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--mist);
  letter-spacing: -.02em;
}
.page-about .tl-stage--now .tl-stage__year {
  color: var(--cyan);
}
.page-about .tl-stage__code {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
  border: 1px solid var(--about-hair-2);
  padding: 3px 7px;
  border-radius: var(--r);
}
.page-about .tl-stage--now .tl-stage__code {
  color: var(--gold);
  border-color: rgba(243, 178, 63, .5);
}
.page-about .tl-stage__title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice);
}
.page-about .tl-stage__text {
  margin: 12px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--about-body);
}
.page-about .tl-stage__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
}
.page-about .tl-stage__points {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  max-width: 640px;
}
.page-about .tl-stage__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}
.page-about .tl-stage__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 8px;
  height: 1px;
  background: var(--cyan-dim);
}

/* ---------- 媒体框 ---------- */
.page-about .media-frame {
  margin: 22px 0 0;
  border: 1px solid var(--about-hair);
  background: var(--ink-deep, #08172A);
  overflow: hidden;
}
.page-about .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .media-caption {
  display: block;
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 适用场景 ---------- */
.page-about .who {
  margin-top: 30px;
  display: grid;
  gap: 28px;
}
.page-about .who__figure {
  margin: 0;
}
.page-about .who-card {
  padding: 20px 0 0;
  border-top: 1px solid var(--about-hair);
}
.page-about .who-card:first-child {
  padding-top: 0;
  border-top: 0;
}
.page-about .who-card__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
  border: 1px solid rgba(243, 178, 63, .42);
  padding: 3px 7px;
  border-radius: var(--r);
}
.page-about .who-card__title {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}
.page-about .who-card__text {
  margin: 10px 0 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-body);
}
.page-about .who-card__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
}
.page-about .who-card__text a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 团队 ---------- */
.page-about .team {
  margin-top: 30px;
  display: grid;
  gap: 30px;
}
.page-about .team-ring {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 22px 18px;
  border: 1px solid var(--about-hair);
  background: var(--panel);
}
.page-about .team-ring__svg {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
}
.page-about .team-ring__cap {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  text-align: center;
}
.page-about .team-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.page-about .team-item {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--about-hair);
  min-width: 0;
}
.page-about .team-item:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-about .team-item__bar {
  flex: 0 0 3px;
  border-radius: 2px;
  background: var(--cyan);
}
.page-about .team-item__bar--1 { background: #17E1CB; }
.page-about .team-item__bar--2 { background: #F3B23F; }
.page-about .team-item__bar--3 { background: #0E9C92; }
.page-about .team-item__bar--4 { background: #FFD98A; }
.page-about .team-item__bar--5 { background: #93A7BC; }
.page-about .team-item__body {
  min-width: 0;
}
.page-about .team-item__head {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.page-about .team-item__head strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--ice);
}
.page-about .team-item__num {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
}
.page-about .team-item__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  transition: color .2s var(--ease);
}
.page-about .team-item:hover .team-item__desc {
  color: var(--about-body);
}

/* ---------- 流程 ---------- */
.page-about .flow {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.page-about .flow-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 12px;
  border: 1px solid var(--about-hair);
  background: var(--ink-2);
  min-width: 0;
}
.page-about .flow-step__idx {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}
.page-about .flow-step__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ice);
  line-height: 1.4;
}
.page-about .flow__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 覆盖数据 ---------- */
.page-about .reach {
  margin-top: 28px;
}
.page-about .reach-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--about-hair);
}
.page-about .reach-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--about-hair);
}
.page-about .reach-row__key {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
}
.page-about .reach-row__val {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold);
  letter-spacing: -.01em;
}
.page-about .reach-row__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}
.page-about .reach__figure {
  margin: 26px 0 0;
}

/* ---------- 资质卡片 ---------- */
.page-about .cred-grid {
  margin-top: 30px;
  display: grid;
  gap: 18px;
}
.page-about .cred-card {
  padding: 20px 18px;
}
.page-about .cred-card__key {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan-dim);
}
.page-about .cred-card__val {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ice);
}
.page-about .cred-card__desc {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 计划 ---------- */
.page-about .plan {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.page-about .plan-item {
  position: relative;
  padding: 22px 18px 20px;
  border: 1px solid var(--about-hair);
  border-left: 2px solid var(--cyan-dim);
  background: linear-gradient(140deg, rgba(23, 225, 203, .07), transparent 62%), var(--ink-2);
}
.page-about .plan-item__idx {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}
.page-about .plan-item__title {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}
.page-about .plan-item__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-body);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  border-top: 1px solid var(--about-hair);
  background:
    radial-gradient(90% 130% at 88% 110%, rgba(243, 178, 63, .14), transparent 60%),
    var(--ink-2);
}
.page-about .about-cta__inner {
  display: grid;
  gap: 22px;
}
.page-about .about-cta__text h2 {
  margin: 0;
}
.page-about .about-cta__text p {
  margin: 12px 0 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-body);
}
.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-about .about-hero {
    padding: 44px 0 44px;
  }
  .page-about .stats-strip__num {
    font-size: 26px;
  }
  .page-about .reach-row {
    grid-template-columns: minmax(0, 190px) minmax(0, 240px) minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
  .page-about .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .cred-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 760px) {
  .page-about .stats-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .stats-strip__item {
    padding: 20px 18px;
  }
  .page-about .flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }
  .page-about .flow-step {
    border: 0;
    border-left: 1px dashed var(--about-hair-2);
    background: transparent;
    padding: 0 16px;
  }
  .page-about .flow-step:first-child {
    border-left: 0;
    padding-left: 0;
  }
  .page-about .flow-step:last-child {
    padding-right: 0;
  }
  .page-about .plan {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
    gap: 32px;
  }
  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 56px 0 52px;
  }
  .page-about .about-hero .h-hero {
    max-width: 13em;
  }
  .page-about .who {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    gap: 44px;
    align-items: start;
  }
  .page-about .who__figure {
    position: sticky;
    top: 96px;
  }
  .page-about .who__list {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .page-about .team {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
  .page-about .team-ring {
    position: sticky;
    top: 96px;
  }
  .page-about .reach {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 40px;
    align-items: start;
  }
  .page-about .reach__figure {
    margin: 0;
  }
  .page-about .cred-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .tl {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
  .page-about .tl-rail {
    display: block;
    position: sticky;
    top: 96px;
    align-self: start;
  }
  .page-about .tl-stage {
    padding-left: 26px;
    padding-bottom: 46px;
    border-left: 1px solid var(--about-hair);
  }
  .page-about .tl-stage:last-child {
    padding-bottom: 0;
    border-left-color: rgba(23, 225, 203, .42);
  }
  .page-about .tl-stage__year {
    font-size: 30px;
  }
  .page-about .tl-stage__title {
    font-size: 22px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero .h-hero {
    max-width: 12em;
  }
  .page-about .tl {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 56px;
  }
  .page-about .tl-stage__year {
    font-size: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}