.page-about {
  --about-gap: clamp(48px, 7vw, 96px);
  --about-edge: 1px solid var(--line-soft);
  color: var(--text);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-about .about-top {
  padding-top: clamp(20px, 3vw, 36px);
}

/* 首屏：竖排旁注 + 大字主张 + 奶油说明牌 */
.page-about .about-lede {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .vertical-note {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin: 0;
  align-self: start;
  display: none;
}

.page-about h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 8vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  max-width: 18ch;
}

.page-about .about-lede__main .page-lede {
  margin-top: 20px;
  max-width: 38em;
}

.page-about .about-stamp {
  background: var(--cream);
  color: var(--ink);
  padding: 20px 22px 22px;
  border-radius: 4px 4px 4px 4px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
  align-self: start;
}

.page-about .about-stamp__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 12px;
  color: var(--ink);
  opacity: 0.62;
}

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

.page-about .about-stamp__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  border-top: 1px solid rgba(11, 20, 16, 0.18);
  padding-top: 10px;
  font-size: 14px;
  line-height: 1.5;
}

.page-about .about-stamp__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-stamp__list .num {
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--ink);
}

/* 图片容器 */
.page-about .about-figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
}

.page-about .about-figure--band {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: linear-gradient(160deg, var(--panel) 0%, var(--ink) 100%);
}

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

.page-about .media--stage {
  aspect-ratio: 16 / 9;
}

.page-about .about-band {
  aspect-ratio: 2 / 1;
}

.page-about .media--tall {
  aspect-ratio: 3 / 2;
}

.page-about .media--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
  border-radius: 4px;
}

.page-about .media__tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  right: 14px;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  padding: 7px 10px;
  max-width: max-content;
}

/* 章节外壳 */
.page-about .about-sec {
  padding: var(--about-gap) 0 0;
  margin-top: var(--about-gap);
  border-top: var(--about-edge);
}

.page-about .about-head {
  max-width: 62ch;
}

.page-about .about-head h2,
.page-about .data-copy h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
}

.page-about .about-head .page-lede {
  margin-top: 14px;
  max-width: 36em;
}

/* 三条准则 */
.page-about .principle-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .principle {
  padding: 20px 20px 22px;
}

.page-about .principle h3 {
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  margin: 14px 0 10px;
}

.page-about .principle p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.page-about .principle__meta {
  margin-top: 16px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  color: var(--lime) !important;
  font-family: var(--font-mono);
  font-size: 13px !important;
  letter-spacing: 0.04em;
}

/* 团队 */
.page-about .team-grid {
  display: grid;
  gap: 28px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .team-roles {
  display: grid;
  gap: 0;
}

.page-about .role {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-about .role:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .role__num {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-about .role h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 8px;
}

.page-about .role p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .flow-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 22px 20px;
}

.page-about .flow-box__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cream);
  margin: 0 0 16px;
}

.page-about .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .flow li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-about .flow li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .flow__no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  padding-top: 3px;
}

.page-about .flow h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
}

.page-about .flow p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 时间轴 */
.page-about .about-track-wrap {
  margin-top: clamp(20px, 3vw, 32px);
  overflow: hidden;
}

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

.page-about .season-strip {
  display: flex;
  gap: 12px;
  margin-top: 4px;
  overflow-x: auto;
  padding-bottom: 12px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-about .season-node {
  flex: 0 0 78%;
  scroll-snap-align: start;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-about .season-node__ver {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
  margin: 0 0 12px;
  transition: color 180ms var(--ease);
}

.page-about .season-node h3 {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.4;
  margin: 12px 0 0;
}

.page-about .season-node__more {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 220ms var(--ease), opacity 220ms var(--ease);
}

.page-about .season-node:hover,
.page-about .season-node:focus-within {
  border-color: var(--lime);
  background: var(--panel-up);
}

.page-about .season-node:hover .season-node__ver,
.page-about .season-node:focus-within .season-node__ver {
  color: var(--lime);
}

.page-about .season-node:hover .season-node__more,
.page-about .season-node:focus-within .season-node__more {
  max-height: 140px;
  opacity: 1;
}

.page-about .season-node--current {
  border-color: rgba(255, 138, 43, 0.55);
}

.page-about .season-node--current .tag--orange {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-about .season-node--current .dot-live {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

/* 数据来源 */
.page-about .data-grid {
  display: grid;
  gap: 28px;
}

.page-about .data-copy > p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  margin: 16px 0 0;
  max-width: 38em;
}

.page-about .data-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-about .data-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.page-about .data-list .num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--cream);
}

.page-about .data-link {
  margin: 24px 0 0;
}

.page-about .data-media {
  margin: 0;
}

/* 稳定性 */
.page-about .uptime-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .uptime-cell {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}

.page-about .uptime-cell--accent {
  background: var(--panel-up);
  border-color: rgba(201, 255, 61, 0.45);
}

.page-about .uptime-cell__num {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  margin: 0;
}

.page-about .uptime-cell__num span {
  font-size: 16px;
  margin-left: 2px;
}

.page-about .uptime-cell__label {
  margin: 10px 0 0;
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--cream);
}

.page-about .uptime-cell__desc {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 联络浮岛 */
.page-about .about-float {
  margin-top: clamp(28px, 4vw, 44px);
  background: var(--panel-up);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: var(--radius-panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  padding: 24px 20px;
  display: grid;
  gap: 22px;
}

.page-about .about-float__main h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.12;
  margin: 14px 0 10px;
}

.page-about .about-float__main p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 40em;
}

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

.page-about .about-float__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-about .about-float__meta li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-about .about-float__meta span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.page-about .about-float__meta strong {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--cream);
  word-break: break-word;
}

/* 断点 */
@media (min-width: 768px) {
  .page-about .principle-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .season-node {
    flex: 0 0 46%;
  }

  .page-about .uptime-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-float {
    padding: 28px 28px 30px;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-float__meta {
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--line);
    padding-left: 22px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-lede {
    grid-template-columns: 44px minmax(0, 1fr) 280px;
    gap: 32px;
    align-items: start;
  }

  .page-about .vertical-note {
    display: block;
  }

  .page-about .principle-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .principle {
    padding: 24px 22px 26px;
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .season-strip {
    overflow: visible;
    flex-wrap: wrap;
    gap: 14px;
  }

  .page-about .season-node {
    flex: 1 1 0;
    min-width: 0;
  }

  .page-about .data-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

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

@media (min-width: 1440px) {
  .page-about .about-lede {
    grid-template-columns: 44px minmax(0, 1fr) 320px;
    gap: 48px;
  }

  .page-about .principle h3 {
    font-size: 21px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .season-node,
  .page-about .season-node__more,
  .page-about .season-node__ver {
    transition: none;
  }
}
<<<END>>>