.page-about {
  --about-gap: 24px;
}

/* 面包屑 */
.page-about .about-crumb-wrap {
  padding-top: 26px;
  padding-bottom: 10px;
}
.page-about .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--steel);
}
.page-about .breadcrumbs a {
  color: var(--steel);
  text-decoration: none;
}
.page-about .breadcrumbs a:hover {
  color: var(--link);
}
.page-about .breadcrumbs [aria-current="page"] {
  color: var(--amber);
}
.page-about .crumb-sep {
  color: var(--line-strong);
}

/* 首屏 */
.page-about .about-hero {
  padding-bottom: 56px;
}
.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
.page-about .about-hero-title {
  margin: 12px 0 22px;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.04;
}
.page-about .about-hero-lede {
  max-width: 58ch;
  color: rgba(243, 246, 250, 0.82);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-about .about-hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--night);
  box-shadow: var(--shadow-deep);
}
.page-about .about-hero-visual svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* 主布局 */
.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-bottom: 88px;
}

/* 章节目录 */
.page-about .about-rail {
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-about .about-rail::-webkit-scrollbar {
  display: none;
}
.page-about .about-rail-title {
  display: none;
}
.page-about .section-index {
  display: flex;
  gap: 18px;
}
.page-about .section-index a {
  position: relative;
  display: block;
  white-space: nowrap;
  padding: 8px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--steel);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.page-about .section-index a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: transparent;
  transition: background-color 0.2s var(--ease);
}
.page-about .section-index a:hover {
  color: var(--moon);
}
.page-about .section-index a[aria-current="true"] {
  color: var(--orange);
}
.page-about .section-index a[aria-current="true"]::after {
  background: var(--orange);
}

/* 面板 */
.page-about .about-body {
  min-width: 0;
}
.page-about .about-board {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 30px 22px;
  margin-bottom: var(--about-gap);
}
.page-about .about-board:last-child {
  margin-bottom: 0;
}
.page-about .eyebrow {
  display: block;
  margin: 0 0 8px;
}
.page-about .about-board .heading {
  margin: 0 0 16px;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.2;
}
.page-about .about-board .subheading {
  margin: 8px 0 8px;
  font-size: 18px;
}
.page-about .body-copy {
  margin: 0 0 14px;
  color: rgba(243, 246, 250, 0.8);
  line-height: 1.78;
  max-width: 66ch;
}
.page-about .body-copy:last-child {
  margin-bottom: 0;
}
.page-about .lede {
  margin: 0 0 24px;
  color: rgba(243, 246, 250, 0.86);
  max-width: 58ch;
}
.page-about .about-inline-link {
  margin: 20px 0 0;
  font-size: 15px;
  color: var(--steel);
}
.page-about .about-inline-link a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 140, 255, 0.4);
}
.page-about .about-inline-link a:hover {
  border-bottom-color: var(--link);
}

/* 玻璃短句 */
.page-about .about-glow {
  margin: 24px 0;
  padding: 20px 22px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: var(--glass-fill);
  backdrop-filter: blur(10px);
}
.page-about .about-glow p {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--moon);
  max-width: 46ch;
}

/* 关键数字 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-about .about-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--night);
}
.page-about .stat-value {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  color: var(--moon);
}
.page-about .stat-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel);
}

/* 团队 */
.page-about .crew-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}
.page-about .crew-bar {
  display: flex;
  height: 18px;
  border-radius: var(--radius-pill);
  overflow: hidden;
  background: var(--night);
  border: 1px solid var(--line);
}
.page-about .crew-seg {
  min-width: 6px;
  height: 100%;
}
.page-about .crew-seg--ops {
  flex: 18 1 0;
  background: var(--orange);
}
.page-about .crew-seg--dev {
  flex: 21 1 0;
  background: var(--steel);
}
.page-about .crew-seg--trans {
  flex: 9 1 0;
  background: rgba(255, 122, 47, 0.5);
}
.page-about .crew-seg--cs {
  flex: 5 1 0;
  background: rgba(157, 175, 198, 0.4);
}
.page-about .crew-legend {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-about .crew-item {
  padding: 14px 16px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: rgba(6, 10, 19, 0.5);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.page-about .crew-item:hover,
.page-about .crew-item:focus-within {
  border-color: var(--line-strong);
  background: rgba(22, 35, 58, 0.72);
}
.page-about .crew-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-about .crew-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
  transform: translateY(-1px);
}
.page-about .crew-dot--ops {
  background: var(--orange);
}
.page-about .crew-dot--dev {
  background: var(--steel);
}
.page-about .crew-dot--trans {
  background: rgba(255, 122, 47, 0.5);
}
.page-about .crew-dot--cs {
  background: rgba(157, 175, 198, 0.4);
}
.page-about .crew-role {
  font-size: 15px;
  font-weight: 700;
  color: var(--moon);
}
.page-about .crew-num {
  margin-left: auto;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  color: var(--orange);
}
.page-about .crew-desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}
.page-about .crew-media {
  margin: 0;
}
.page-about .crew-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
}
.page-about .media-caption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* 版本时间线 */
.page-about .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 24px;
}
.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
  min-width: 0;
}
.page-about .tl::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 199, 82, 0.75), rgba(157, 175, 198, 0.2), rgba(157, 175, 198, 0.05));
}
.page-about .tl-item {
  position: relative;
  margin-bottom: 14px;
}
.page-about .tl-item:last-child {
  margin-bottom: 0;
}
.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 22px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--amber);
  box-sizing: border-box;
}
.page-about .tl-node {
  background: rgba(6, 10, 19, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: border-color 0.2s var(--ease);
}
.page-about .tl-node:hover {
  border-color: var(--line-strong);
}
.page-about .tl-node[open] {
  border-color: rgba(255, 199, 82, 0.42);
}
.page-about .tl-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}
.page-about .tl-summary::-webkit-details-marker {
  display: none;
}
.page-about .tl-ver {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 21px;
  letter-spacing: 0.04em;
  color: var(--amber);
}
.page-about .tl-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--moon);
}
.page-about .tl-year {
  margin-left: auto;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--steel);
}
.page-about .tl-detail {
  padding: 0 18px 18px;
}
.page-about .tl-detail p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 246, 250, 0.78);
}
.page-about .version-media {
  margin: 0;
  align-self: start;
}
.page-about .version-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 7;
  object-fit: cover;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
}

/* 数据流程 */
.page-about .flow {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .flow-step {
  position: relative;
  padding: 20px 18px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: rgba(6, 10, 19, 0.5);
}
.page-about .flow-icon {
  display: block;
  width: 26px;
  height: 26px;
  color: var(--orange);
  margin-bottom: 12px;
}
.page-about .flow-icon svg {
  display: block;
  width: 100%;
  height: 100%;
}
.page-about .flow-no {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}
.page-about .flow-step .body-copy {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
}

/* 共建 */
.page-about .collab-hero {
  margin: 0 0 24px;
}
.page-about .collab-hero img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
}
.page-about .collab-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-about .collab-item {
  padding: 20px 18px;
  background: var(--night);
}
.page-about .collab-num {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  line-height: 1;
  color: var(--orange);
}
.page-about .collab-label {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel);
}
.page-about .collab-desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(243, 246, 250, 0.78);
}

/* 用户分布 */
.page-about .reach {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 24px;
}
.page-about .reach-item {
  padding: 16px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: var(--night);
}
.page-about .reach-num {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 28px;
  line-height: 1;
  color: var(--jade);
}
.page-about .reach-label {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

/* 收束 */
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 平板与桌面 */
@media (min-width: 700px) {
  .page-about {
    --about-gap: 32px;
  }
  .page-about .about-board {
    padding: 44px 40px;
  }
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-stats .stat {
    padding: 22px 18px;
  }
  .page-about .crew-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
  .page-about .collab-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .reach {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-bottom: 72px;
  }
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
  }
  .page-about .crew-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
  }
  .page-about .version-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
  }
}

@media (min-width: 1080px) {
  .page-about .about-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 52px;
  }
  .page-about .about-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    padding-bottom: 0;
    padding-left: 16px;
    overflow: visible;
  }
  .page-about .about-rail-title {
    display: block;
    margin: 0 0 12px;
    color: var(--steel);
  }
  .page-about .section-index {
    display: block;
  }
  .page-about .section-index a {
    padding: 8px 0;
    white-space: normal;
  }
  .page-about .section-index a::after {
    display: none;
  }
  .page-about .section-index a[aria-current="true"] {
    padding-left: 12px;
  }
  .page-about .section-index a[aria-current="true"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--orange);
    transform: translateY(-50%);
  }
  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -13px;
    top: 40px;
    width: 8px;
    height: 8px;
    border-top: 1px solid var(--line-strong);
    border-right: 1px solid var(--line-strong);
    transform: rotate(45deg);
  }
}
</｜｜DSML｜｜ parameter>
</invoke>