.page-about {
  --about-num: 72px;
  --about-rail-w: 250px;
  padding-top: var(--gap-l);
  padding-bottom: var(--gap-xl);
}

/* ---------- 首屏声明 ---------- */
.page-about .about-mast {
  max-width: 860px;
  padding-bottom: var(--gap-l);
}

.page-about .about-mast__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sky);
  margin: 0 0 var(--gap-m);
}

.page-about .about-mast__title {
  margin: 0 0 var(--gap-m);
  line-height: 1.1;
}

.page-about .about-mast__lede {
  max-width: 42ch;
  margin: 0 0 var(--gap-m);
}

.page-about .about-mast__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-s) var(--gap-m);
  padding-top: var(--gap-s);
  border-top: 1px solid var(--cream);
}

.page-about .about-fact {
  font-size: 14px;
  color: var(--brown);
}

.page-about .about-fact b {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--crimson);
  margin-right: 6px;
}

/* ---------- 两栏骨架 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "main" "rail";
  gap: var(--gap-l);
}

.page-about .about-main {
  grid-area: main;
  min-width: 0;
}

.page-about .about-rail {
  grid-area: rail;
  min-width: 0;
  padding: var(--gap-m);
  background: var(--cream);
  border-radius: var(--radius);
}

/* ---------- 章节 ---------- */
.page-about .about-sec {
  padding-bottom: var(--gap-l);
  margin-bottom: var(--gap-l);
  border-bottom: 1px solid var(--cream);
}

.page-about .about-sec--end {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-sec__head {
  margin-bottom: var(--gap-m);
}

.page-about .about-sec__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--about-num);
  font-weight: 200;
  line-height: 0.86;
  letter-spacing: -0.04em;
  color: var(--cream);
}

.page-about .about-sec__title {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--brown);
  margin: -14px 0 0;
}

.page-about .about-sec__lead {
  margin: 0 0 var(--gap-m);
  color: var(--brown);
  max-width: 46ch;
}

/* ---------- 01 服务对象 ---------- */
.page-about .aud-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap-m);
}

.page-about .aud-item {
  padding: 0 0 0 var(--gap-m);
  border-left: 4px solid var(--gold);
}

.page-about .aud-item__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-about .aud-item__text {
  margin: 0;
  color: var(--brown);
}

/* ---------- 02 高原 ---------- */
.page-about .origin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-m);
}

.page-about .origin-grid__text p {
  margin: 0 0 var(--gap-s);
  color: var(--brown);
}

.page-about .origin-grid__text p:first-child {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
}

.page-about .origin-grid__media {
  margin: 0;
}

.page-about .origin-grid__media img {
  border-radius: var(--radius);
}

/* ---------- 03 赛季 ---------- */
.page-about .season-axis {
  padding: var(--gap-m) 0 var(--gap-m);
}

.page-about .season-svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 140px;
}

.page-about .season-axis__cap {
  font-size: 14px;
  color: var(--brown);
  margin: 0 0 var(--gap-m);
  padding-bottom: var(--gap-s);
  border-bottom: 1px dashed var(--cream);
}

.page-about .season-axis__cap b {
  color: var(--crimson);
  font-weight: 700;
}

.page-about .season-stages {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-s);
}

.page-about .season-stage {
  padding: var(--gap-s);
  background: var(--paper);
  border: 1px solid var(--cream);
  border-top: 4px solid var(--sky);
  border-radius: var(--radius);
  transition: border-color 200ms ease, transform 200ms ease;
}

.page-about .season-stage:hover,
.page-about .season-stage:focus-within {
  border-color: var(--sky);
  transform: translateY(-2px);
}

.page-about .season-stage:nth-child(3) {
  border-top-color: var(--gold);
}

.page-about .season-stage:nth-child(4) {
  border-top-color: var(--crimson);
}

.page-about .season-stage__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 6px;
}

.page-about .season-stage__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--brown);
  margin: 0;
}

.page-about .season-media {
  margin: var(--gap-m) 0 0;
}

.page-about .season-media img {
  border-radius: var(--radius);
}

/* ---------- 04 团队 ---------- */
.page-about .team-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: var(--gap-m);
}

.page-about .team-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  min-height: 88px;
  padding: var(--gap-s);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: #fff;
  text-align: left;
  cursor: pointer;
}

.page-about .team-cell--sky {
  background: var(--sky);
}

.page-about .team-cell--crimson {
  background: var(--crimson);
}

.page-about .team-cell--gold {
  background: var(--gold);
  color: var(--brown);
}

.page-about .team-cell--moss {
  background: var(--moss);
}

.page-about .team-cell[aria-selected="true"] {
  border-color: var(--brown);
  box-shadow: inset 0 0 0 1px rgba(246, 243, 234, 0.6);
}

.page-about .team-cell__name {
  font-size: 16px;
  font-weight: 700;
}

.page-about .team-cell__n {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  opacity: 0.9;
}

.page-about .team-panel {
  padding: var(--gap-m);
  background: var(--paper);
  border-left: 4px solid var(--sky);
  border-radius: var(--radius);
}

.page-about .team-panel[hidden] {
  display: none;
}

.page-about .team-panel__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-about .team-panel p {
  margin: 0;
  color: var(--brown);
}

.page-about .team-note {
  margin-top: var(--gap-m);
}

.page-about .team-note__img {
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
  border-radius: var(--radius);
  margin-bottom: var(--gap-s);
}

/* ---------- 05 服务能力 ---------- */
.page-about .ability-panel {
  padding: var(--gap-m);
}

.page-about .ability-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-m) var(--gap-s);
  padding-bottom: var(--gap-m);
  margin-bottom: var(--gap-m);
  border-bottom: 1px solid rgba(42, 31, 26, 0.12);
}

.page-about .ability-panel .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .ability-panel .stat__value {
  font-size: 28px;
  font-weight: 700;
  color: var(--crimson);
  line-height: 1;
}

.page-about .ability-panel .stat__label {
  font-size: 13px;
  color: var(--brown);
}

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

.page-about .ability-list li {
  position: relative;
  padding-left: 22px;
  color: var(--brown);
  font-size: 15px;
  line-height: 1.75;
}

.page-about .ability-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--sky);
}

/* ---------- 06 开始 ---------- */
.page-about .start-steps {
  list-style: none;
  margin: 0 0 var(--gap-m);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--cream);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .start-step {
  background: var(--paper);
  padding: var(--gap-s) var(--gap-m);
}

.page-about .start-step__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sky);
  margin-bottom: 4px;
}

.page-about .start-step__text {
  margin: 0;
  color: var(--brown);
}

.page-about .start-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: var(--gap-m);
}

.page-about .start-more {
  font-size: 14px;
  color: var(--brown);
  margin: 0;
}

.page-about .start-more a {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 侧栏索引 ---------- */
.page-about .about-rail__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--brown);
  margin: 0 0 12px;
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0 0 var(--gap-m);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 10px;
  background: var(--paper);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--brown);
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease;
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  border-color: var(--sky);
  color: var(--sky);
}

.page-about .about-rail__no {
  font-size: 12px;
  color: var(--crimson);
}

.page-about .about-rail__season {
  padding-top: var(--gap-s);
  border-top: 1px solid rgba(42, 31, 26, 0.14);
}

.page-about .season-meter {
  list-style: none;
  margin: 0;
  padding: 0 0 0 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  border-left: 2px solid var(--cream);
}

.page-about .season-meter__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--brown);
}

.page-about .season-meter__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sky);
  flex: 0 0 auto;
}

.page-about .season-meter__item--end .season-meter__dot {
  background: var(--crimson);
}

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

.page-about .media--tall img {
  aspect-ratio: 4 / 5;
  object-position: center;
}

.page-about .media--wide img {
  aspect-ratio: 16 / 7;
}

.page-about .media__cap {
  font-size: 13px;
  color: var(--brown);
  margin-top: 8px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .aud-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

  .page-about .origin-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
    gap: var(--gap-l);
  }

  .page-about .start-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-about {
    --about-num: 112px;
  }

  .page-about .about-layout {
    grid-template-columns: minmax(0, 7fr) minmax(200px, 3fr);
    grid-template-areas: "main rail";
    gap: var(--gap-xl);
  }

  .page-about .about-main {
    position: relative;
    padding-right: var(--gap-l);
  }

  .page-about .about-main::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--crimson) 0%, var(--crimson) 42%, var(--gold) 100%);
    border-radius: 2px;
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    align-self: start;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-rail__link {
    background: transparent;
    padding: 6px 8px;
    border-left: 2px solid transparent;
  }

  .page-about .about-rail__link:hover,
  .page-about .about-rail__link:focus-visible {
    border-left-color: var(--sky);
  }

  .page-about .season-meter {
    flex-direction: column;
    gap: 10px;
    padding-left: 12px;
    border-left: 3px solid var(--cream);
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</｜｜DSML｜｜ calls>