.page-about {
  --about-card-shadow: 6px 6px 0 rgba(0, 0, 0, 0.36);
  --about-rule: 1px solid var(--line);
}

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

.page-about .about-crumb {
  padding-top: 18px;
}

.page-about .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
}

.page-about .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.page-about .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-about .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--faint);
}

.page-about .breadcrumbs [aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  border-bottom: var(--about-rule);
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(53, 242, 208, 0.09), transparent 62%),
    linear-gradient(180deg, rgba(255, 107, 26, 0.06), transparent 70%);
}

.page-about .about-hero__inner {
  display: grid;
  gap: 30px;
  padding: 26px 0 48px;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 7.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 12px 0 0;
  color: var(--white);
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__frame {
  position: relative;
  border: 2px solid var(--line);
  background: var(--panel);
  padding: 12px 12px 14px;
  box-shadow: var(--shadow-hard);
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--orange) 0 3px, transparent 3px 18px);
  opacity: 0.85;
}

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

.page-about .about-hero__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.page-about .media-caption {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
  line-height: 1.6;
}

.page-about .about-marks {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-mark {
  border-top: 2px solid var(--line);
  padding-top: 8px;
}

.page-about .about-mark__y {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.04em;
}

.page-about .about-mark__t {
  display: block;
  margin-top: 3px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 章节通用 ---------- */
.page-about .section {
  padding: 44px 0;
}

.page-about .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  border-top: var(--about-rule);
  padding-top: 18px;
  margin-bottom: 26px;
}

.page-about .section-index {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

@supports (-webkit-text-stroke: 1px red) {
  .page-about .section-index {
    color: transparent;
    -webkit-text-stroke: 1.4px var(--orange);
  }
}

.page-about .section-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 42px);
  line-height: 1.12;
  margin: 6px 0 0;
  color: var(--white);
  letter-spacing: -0.005em;
}

.page-about .section-sub {
  margin: 10px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 01 时间轴 ---------- */
.page-about .about-years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.page-about .about-years a {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  color: var(--cyan);
  text-decoration: none;
  background: rgba(53, 242, 208, 0.04);
}

.page-about .about-years a:hover,
.page-about .about-years a:focus-visible {
  border-color: var(--cyan);
  background: rgba(53, 242, 208, 0.12);
}

.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-tl-item {
  position: relative;
  padding: 0 0 26px 28px;
}

.page-about .about-tl-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--orange);
}

.page-about .about-tl-item::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 20px;
  bottom: 4px;
  width: 2px;
  background: var(--line);
}

.page-about .about-tl-item:last-child::after {
  display: none;
}

.page-about .about-tl-item#year-now::before {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 242, 208, 0.2);
}

.page-about .about-tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  letter-spacing: 0.03em;
  margin-bottom: 10px;
}

.page-about .about-tl-card {
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 4px solid var(--orange);
  padding: 16px 18px;
  box-shadow: var(--about-card-shadow);
}

.page-about .about-tl-card--now {
  border-left-color: var(--cyan);
  background: linear-gradient(160deg, rgba(53, 242, 208, 0.1), var(--panel) 70%);
}

.page-about .about-tl-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 8px;
  color: var(--white);
  line-height: 1.3;
}

.page-about .about-tl-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

/* ---------- 02 资料体系 ---------- */
.page-about .about-dossier__grid {
  display: grid;
  gap: 26px;
}

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

.page-about .about-dossier__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 11 / 7;
  object-fit: cover;
}

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-figures .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 2px solid var(--line);
  border-top: 3px solid var(--orange);
  background: var(--panel);
  padding: 12px 14px;
}

.page-about .about-figures .stat-value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--yellow);
}

.page-about .about-figures .stat-label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .about-dossier__note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-tabs {
  margin-top: 24px;
}

.page-about .about-tabpanel {
  border: 2px solid var(--line);
  border-left: 4px solid var(--cyan);
  background: var(--panel);
  padding: 16px 18px;
  margin-top: 12px;
}

.page-about .about-tabpanel h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 8px;
  color: var(--cyan);
  line-height: 1.3;
}

.page-about .about-tabpanel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 03 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-team__card {
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--about-card-shadow);
}

.page-about .about-team__card .panel-head {
  padding: 12px 16px;
  border-bottom: 2px solid var(--line);
  background: rgba(255, 107, 26, 0.07);
}

.page-about .about-team__card .panel-head h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0;
  color: var(--white);
  line-height: 1.3;
}

.page-about .about-team__card .panel-body {
  padding: 14px 16px;
}

.page-about .about-team__card .panel-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-about .about-team__split {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

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

.page-about .about-team__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 13;
  object-fit: cover;
}

.page-about .about-flow {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-flow li {
  border-top: 3px solid var(--orange);
  padding: 10px 0 0;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--white);
}

.page-about .about-flow li b {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--faint);
  margin-bottom: 4px;
}

.page-about .about-flow__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 04 协作 ---------- */
.page-about .about-partner__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-partner__card {
  border: 2px solid var(--line);
  background: var(--panel);
  padding: 16px 18px 18px;
}

.page-about .about-partner__card--accent {
  border-color: var(--cyan);
  background: linear-gradient(150deg, rgba(53, 242, 208, 0.12), var(--panel) 72%);
}

.page-about .about-partner__card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 10px 0 8px;
  color: var(--white);
  line-height: 1.32;
}

.page-about .about-partner__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-about .about-output {
  display: grid;
  gap: 10px;
  margin-top: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-output__item {
  border: 2px solid var(--line);
  border-bottom: 4px solid var(--orange);
  background: rgba(17, 28, 54, 0.7);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-output__item--wide {
  grid-column: 1 / -1;
  border-bottom-color: var(--cyan);
  align-items: flex-start;
}

.page-about .about-output__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-about .about-output__label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-output__item--wide .about-output__label {
  font-size: 14px;
  color: var(--text-soft);
}

.page-about .about-output__item--wide .btn {
  margin-top: 4px;
}

/* ---------- 05 地区运营 ---------- */
.page-about .about-region__panel {
  display: grid;
  gap: 20px;
  border: 2px solid var(--line);
  border-top: 4px solid var(--cyan);
  background: var(--panel);
  padding: 18px 18px 22px;
  box-shadow: var(--shadow-soft);
}

.page-about .about-region__panel .data-list {
  display: grid;
  gap: 0;
}

.page-about .about-region__panel .data-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-region__panel .data-row:first-child {
  padding-top: 0;
}

.page-about .about-region__panel .data-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.page-about .about-region__panel .data-val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--white);
}

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

.page-about .about-region__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

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

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

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

@media (min-width: 800px) {
  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-region__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 30px;
    padding: 24px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 46px;
    align-items: start;
    padding: 42px 0 68px;
  }

  .page-about .section {
    padding: 64px 0;
  }

  .page-about .section-head {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 22px;
    margin-bottom: 34px;
  }

  .page-about .section-index {
    font-size: 44px;
  }

  .page-about .about-dossier__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-team__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
    margin-top: 34px;
  }

  .page-about .about-tl-item {
    display: grid;
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 34px;
    padding: 0 0 30px 0;
  }

  .page-about .about-tl-item::before {
    left: calc(148px + 17px);
    top: 12px;
    width: 12px;
    height: 12px;
  }

  .page-about .about-tl-item::after {
    left: calc(148px + 22px);
    top: 24px;
    bottom: 6px;
  }

  .page-about .about-tl-year {
    font-size: 30px;
    margin-bottom: 0;
    text-align: right;
    padding-top: 6px;
  }

  .page-about .about-output {
    grid-template-columns: 1fr 1fr 1.6fr;
  }

  .page-about .about-output__item--wide {
    grid-column: auto;
    justify-content: center;
  }
}

@media (min-width: 1040px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-flow {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .about-flow li {
    font-size: 12.5px;
  }
}
<<<END>>>