.page-about {
  --about-stroke: rgba(255, 255, 255, 0.08);
  --about-body: rgba(255, 255, 255, 0.8);
  --about-body-dim: rgba(255, 255, 255, 0.76);
  --about-line: rgba(111, 215, 155, 0.16);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: 26px;
  padding-block: 20px 34px;
}

.page-about .about-hero-figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--about-line);
  background: var(--pitch-2);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
}

.page-about .about-hero-figure .media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 26px 16px 12px;
  background: linear-gradient(to top, rgba(10, 42, 33, 0.94), rgba(10, 42, 33, 0));
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--turf-light);
}

.page-about .about-hero-body {
  min-width: 0;
}

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--sans);
  font-size: clamp(29px, 6.2vw, 52px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-about .about-hero-lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16.5px;
  line-height: 1.88;
  color: var(--about-body);
}

.page-about .about-keyline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 24px 0 0;
  padding: 15px 0;
  border-top: 1px dashed var(--dash);
  border-bottom: 1px dashed var(--dash);
}

.page-about .about-keyline-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
}

.page-about .about-keyline-item dt {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .about-keyline-item dd {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-keyline-item dd .mono {
  color: var(--cyan);
  font-size: 18px;
}

.page-about .about-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

/* ---------- 数据条 ---------- */
.page-about .about-stats {
  margin-bottom: 28px;
  border-radius: var(--radius);
  background: var(--pitch-2);
  border: 1px solid var(--about-line);
  padding: 16px 18px;
}

.page-about .about-stats .stat-num {
  color: var(--amber);
}

/* ---------- 时间轴骨架 ---------- */
.page-about .about-spine {
  position: relative;
  display: flex;
  flex-direction: column;
}

.page-about .about-spine::before {
  display: none;
}

.page-about .about-stop {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding-block: 36px;
  border-top: 1px dashed var(--dash);
  scroll-margin-top: 92px;
}

.page-about .about-stop-marker {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .about-stop-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--pitch-2);
  border: 1px solid var(--about-line);
  color: var(--cyan);
  font-size: 17px;
  transition: background-color 0.5s ease, color 0.5s ease, border-color 0.5s ease;
}

.page-about .about-stop[data-reveal].is-visible .about-stop-num {
  background: var(--turf);
  border-color: var(--turf-light);
  color: #04241a;
}

.page-about .about-stop-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-stop-body {
  min-width: 0;
  overflow-wrap: break-word;
}

.page-about .about-stop-body .section-title {
  margin: 0 0 14px;
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.page-about .about-stop-body > p {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.88;
  color: var(--about-body);
}

.page-about .about-stop-body > p:last-child {
  margin-bottom: 0;
}

/* ---------- 说明牌式要点列表 ---------- */
.page-about .about-note-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-note-list li {
  position: relative;
  padding: 14px 16px 14px 18px;
  border-radius: var(--radius-sm);
  background: rgba(47, 158, 99, 0.09);
  border-left: 4px solid var(--turf);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--about-body-dim);
}

.page-about .about-note-list strong {
  color: var(--turf-light);
  font-weight: 700;
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-coverage {
  position: relative;
  margin: 24px 0 26px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--pitch-2);
  border: 1px solid var(--about-line);
}

.page-about .about-coverage-bg {
  position: absolute;
  inset: 0;
  margin: 0;
}

.page-about .about-coverage-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
}

.page-about .about-coverage-inner {
  position: relative;
  padding: 24px 18px 26px;
}

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

.page-about .about-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "key val"
    "track track";
  gap: 7px 12px;
  align-items: center;
}

.page-about .about-bar-key {
  grid-area: key;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--about-body-dim);
}

.page-about .about-bar-val {
  grid-area: val;
  font-size: 15px;
  color: var(--cyan);
  text-align: right;
  white-space: nowrap;
}

.page-about .about-bar-track {
  grid-area: track;
  display: block;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  overflow: hidden;
}

.page-about .about-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--turf), var(--turf-light));
  transition: width 0.6s ease;
}

.page-about .about-bar:nth-child(1) .about-bar-fill { width: 100%; }
.page-about .about-bar:nth-child(2) .about-bar-fill { width: 90%; }
.page-about .about-bar:nth-child(3) .about-bar-fill { width: 37%; }
.page-about .about-bar:nth-child(4) .about-bar-fill { width: 31%; }
.page-about .about-bar:nth-child(5) .about-bar-fill { width: 16%; }

.page-about .about-coverage-note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--dash);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--about-body-dim);
}

/* ---------- 归档流程 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-step {
  padding: 22px 20px 24px;
  border-radius: var(--radius);
  background: var(--pitch-2);
  border: 1px solid var(--about-line);
}

.page-about .about-step-num {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--amber);
  color: var(--pitch);
  font-size: 11.5px;
  letter-spacing: 0.14em;
}

.page-about .about-step h3 {
  margin: 14px 0 8px;
  font-size: 19px;
  font-weight: 900;
  color: #ffffff;
}

.page-about .about-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--about-body-dim);
}

.page-about .about-flow-figure {
  margin: 20px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--about-line);
}

.page-about .about-flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-flow-figure .media-caption {
  margin: 0;
  padding: 11px 16px;
  background: var(--board);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-about .about-check {
  margin-top: 18px;
  padding: 18px 20px 20px;
  border-radius: var(--radius-sm);
  background: var(--board);
  border-left: 5px solid var(--amber);
  color: var(--ink);
}

.page-about .about-check-title {
  margin: 0 0 7px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--turf);
}

.page-about .about-check p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 赛季沿革 ---------- */
.page-about .about-seasons {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .about-season {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px dashed var(--dash);
}

.page-about .about-season:last-child {
  border-bottom: 1px dashed var(--dash);
}

.page-about .about-season-round {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 8px;
  border-radius: 8px;
  background: rgba(55, 198, 214, 0.12);
  border: 1px solid rgba(55, 198, 214, 0.32);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-about .about-season h3 {
  margin: 4px 0 7px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: #ffffff;
}

.page-about .about-season p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--about-body-dim);
}

/* ---------- 团队分工 ---------- */
.page-about .about-team {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-team-card {
  padding: 22px 20px 24px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--pitch-2), rgba(18, 60, 47, 0.5));
  border: 1px solid var(--about-line);
}

.page-about .about-team-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 900;
  color: var(--turf-light);
}

.page-about .about-team-card h3::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--turf);
}

.page-about .about-team-card p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--about-body-dim);
}

.page-about .about-team-tag {
  display: block;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--dash);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 长期价值 ---------- */
.page-about .about-value {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-value li {
  position: relative;
  padding: 18px 18px 18px 48px;
  border-radius: var(--radius-sm);
  background: rgba(47, 158, 99, 0.1);
  border: 1px solid var(--about-line);
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.86);
}

.page-about .about-value li::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--turf-light);
  box-shadow: 0 0 0 4px rgba(111, 215, 155, 0.16);
}

/* ---------- 结尾入口 ---------- */
.page-about .about-next {
  margin-top: 34px;
  padding: 30px 20px 34px;
  border-radius: var(--radius);
  background: var(--board);
  color: var(--ink);
}

.page-about .about-next h2 {
  margin: 0 0 20px;
  font-size: clamp(23px, 3.6vw, 32px);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-next-grid {
  display: grid;
  gap: 12px;
}

.page-about .about-next-card {
  display: block;
  padding: 20px 18px 22px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid rgba(20, 33, 28, 0.1);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.page-about .about-next-card:hover,
.page-about .about-next-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--turf);
  box-shadow: 0 12px 28px rgba(20, 33, 28, 0.14);
}

.page-about .about-next-kicker {
  display: block;
  margin-bottom: 9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--turf);
}

.page-about .about-next-card h3 {
  margin: 0 0 7px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-about .about-next-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: #3f504a;
}

.page-about .about-next-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .about-coverage-inner {
    padding: 30px 26px 32px;
  }

  .page-about .about-bar {
    grid-template-columns: 128px minmax(0, 1fr) 84px;
    grid-template-areas: "key track val";
    gap: 14px;
  }

  .page-about .about-bar-val {
    text-align: right;
  }

  .page-about .about-next {
    padding: 36px 30px 40px;
  }
}

@media (min-width: 760px) {
  .page-about .about-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .page-about .about-season {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 22px;
    padding: 22px 0;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: center;
    gap: 46px;
    padding-block: 30px 52px;
  }

  .page-about .about-hero h1 {
    margin-top: 16px;
  }

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

  .page-about .about-spine::before {
    display: block;
    content: "";
    position: absolute;
    left: 25px;
    top: 24px;
    bottom: 24px;
    width: 1px;
    background: linear-gradient(
      to bottom,
      transparent,
      var(--about-line) 6%,
      var(--about-line) 94%,
      transparent
    );
  }

  .page-about .about-stop {
    grid-template-columns: 122px minmax(0, 1fr);
    gap: 40px;
    padding-block: 52px;
  }

  .page-about .about-stop-marker {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    position: relative;
    z-index: 1;
  }

  .page-about .about-stop-num {
    width: 52px;
    height: 52px;
    background: var(--pitch-2);
  }

  .page-about .about-stop-kicker {
    padding-left: 2px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-stop {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stop-num,
  .page-about .about-bar-fill,
  .page-about .about-next-card {
    transition: none;
  }

  .page-about .about-next-card:hover,
  .page-about .about-next-card:focus-visible {
    transform: none;
  }
}
<<<END>>>