.page-about {
  --rail-w: 168px;
  --about-gap: clamp(1.5rem, 4vw, 3.5rem);
  --block-pad: clamp(2.75rem, 7vw, 6rem);
  --silver-line: rgba(198, 205, 212, 0.22);
  background: var(--ink);
  color: var(--bone);
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  padding: clamp(1.5rem, 4vw, 3rem) 0 0;
}

.page-about .breadcrumb {
  margin-bottom: 1.25rem;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.page-about .breadcrumb a {
  color: var(--rock);
  text-decoration: none;
  transition: color 0.18s ease;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--orange);
}

.page-about .about-hero-frame {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3.25rem) clamp(1.25rem, 4vw, 3.25rem) clamp(1.75rem, 4vw, 3rem);
  border: 3px solid var(--silver);
  box-shadow: 14px 14px 0 rgba(255, 106, 43, 0.18);
  background:
    radial-gradient(130% 100% at 88% 0%, rgba(255, 106, 43, 0.16), transparent 58%),
    linear-gradient(158deg, var(--ink-2) 0%, var(--ink) 78%);
  overflow: hidden;
}

.page-about .about-hero-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--silver) 0 2px, transparent 2px 16px);
  opacity: 0.5;
}

.page-about .about-hero-frame::after {
  content: "";
  position: absolute;
  top: 20px;
  right: 20px;
  width: 14px;
  height: 14px;
  border-top: 3px solid var(--orange);
  border-right: 3px solid var(--orange);
}

.page-about .about-hero-frame .eyebrow {
  color: var(--orange);
  letter-spacing: 0.16em;
}

.page-about .about-hero h1 {
  margin: 0.75rem 0 1.1rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 6vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-about .about-hero .lead {
  max-width: 52ch;
  margin: 0 0 2rem;
  font-size: clamp(1rem, 1.65vw, 1.1rem);
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.86);
}

.page-about .hero-facts {
  list-style: none;
  margin: 0;
  padding: 1.35rem 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1.25rem;
  border-top: 1px solid var(--silver-line);
}

.page-about .hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.page-about .fact-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  line-height: 1.1;
  color: var(--neon);
}

.page-about .fact-label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

@media (min-width: 720px) {
  .page-about .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 章节轨道 ---------- */
.page-about .about-track {
  display: flex;
  gap: 0.5rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: 0.75rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-track::-webkit-scrollbar {
  display: none;
}

.page-about .track-link {
  flex: 0 0 auto;
  padding: 0.45rem 0.95rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-about .track-link:hover,
.page-about .track-link:focus-visible {
  color: var(--bone);
  border-color: var(--orange);
}

.page-about .track-link.is-current,
.page-about .track-link[aria-current="true"] {
  color: var(--ink);
  background: var(--neon);
  border-color: var(--neon);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-block {
  padding: var(--block-pad) 0;
  border-top: 3px solid var(--silver-line);
  scroll-margin-top: calc(var(--header-h) + 2rem);
}

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

@media (min-width: 860px) {
  .page-about .about-grid {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: var(--about-gap);
  }
}

.page-about .about-rail {
  padding-top: 0.35rem;
}

@media (min-width: 860px) {
  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 2.5rem);
  }
}

.page-about .rail-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1;
  color: var(--orange);
}

.page-about .rail-note {
  margin: 0.6rem 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

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

.page-about .about-body h2 {
  margin: 0 0 1.15rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.55rem, 3.4vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  max-width: 24ch;
}

.page-about .about-body p {
  color: rgba(242, 237, 228, 0.82);
}

.page-about .about-intro {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  line-height: 1.8;
}

/* ---------- 图片框 ---------- */
.page-about .about-media {
  position: relative;
  margin: 0;
  border: 3px solid var(--silver);
  box-shadow: 12px 12px 0 rgba(255, 106, 43, 0.14);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-about .about-media--wide {
  margin-top: 2.25rem;
}

.page-about .about-media--wide img {
  max-height: 380px;
}

.page-about .about-media .annotation {
  margin: 0;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--silver-line);
  background: rgba(10, 26, 43, 0.72);
  font-size: 13px;
  line-height: 1.65;
  color: var(--rock);
}

/* ---------- 团队分工 ---------- */
.page-about .role-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 3px solid var(--silver-line);
}

.page-about .role-row {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.35rem 1rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .role-index {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--clay);
}

.page-about .role-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 0.9rem;
  margin-bottom: 0.5rem;
}

.page-about .role-name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  letter-spacing: -0.01em;
}

.page-about .role-count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--silver);
  border-radius: var(--radius-pill);
  padding: 0.15rem 0.6rem;
}

.page-about .role-desc {
  margin: 0;
  max-width: 64ch;
  line-height: 1.8;
}

/* ---------- 覆盖能力 ---------- */
.page-about .coverage-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
  align-items: start;
}

@media (min-width: 860px) {
  .page-about .coverage-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.6fr);
    gap: var(--about-gap);
  }
}

.page-about .coverage-copy p {
  margin-top: 0;
}

.page-about .coverage-copy p:last-child {
  margin-bottom: 0;
}

/* ---------- 赛季柱形 ---------- */
.page-about .season-block {
  margin-top: clamp(2rem, 5vw, 3.25rem);
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 3px solid var(--silver);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.32);
  background: linear-gradient(165deg, rgba(18, 41, 63, 0.9), rgba(10, 26, 43, 0.68));
}

.page-about .season-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1.5rem;
}

.page-about .season-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  letter-spacing: -0.01em;
}

.page-about .season-head .annotation {
  margin: 0;
}

.page-about .season-plot {
  --bar-unit: 40px;
  --plot-h: 300px;
  display: flex;
  align-items: stretch;
  gap: clamp(0.4rem, 2vw, 1.15rem);
  height: var(--plot-h);
}

.page-about .season-col {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  gap: 0.5rem;
  outline: none;
}

.page-about .season-bar {
  width: 100%;
  max-width: 64px;
  height: calc(var(--s, 1) * var(--bar-unit));
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--clay), rgba(200, 96, 58, 0.5));
  transition: transform 0.18s ease, filter 0.18s ease;
}

.page-about .season-col:nth-child(1) { --s: 1; }
.page-about .season-col:nth-child(2) { --s: 2; }
.page-about .season-col:nth-child(3) { --s: 3; }
.page-about .season-col:nth-child(4) { --s: 4; }
.page-about .season-col:nth-child(5) { --s: 5; }
.page-about .season-col:nth-child(6) { --s: 6; }

.page-about .season-col:nth-child(6) .season-bar {
  background: linear-gradient(180deg, var(--orange), rgba(255, 106, 43, 0.55));
}

.page-about .season-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(11px, 1.5vw, 13px);
  color: var(--rock);
  transition: color 0.18s ease;
}

.page-about .season-label {
  font-size: clamp(10px, 1.4vw, 12px);
  letter-spacing: 0.04em;
  color: var(--rock);
  white-space: nowrap;
}

.page-about .season-col:hover .season-bar,
.page-about .season-col:focus-visible .season-bar {
  transform: translateY(-6px);
  filter: brightness(1.18);
}

.page-about .season-col:hover .season-value,
.page-about .season-col:focus-visible .season-value {
  color: var(--neon);
}

@media (max-width: 640px) {
  .page-about .season-plot {
    --bar-unit: 28px;
    --plot-h: 232px;
  }
}

/* ---------- 上线节奏 ---------- */
.page-about .refresh-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
  align-items: start;
}

@media (min-width: 860px) {
  .page-about .refresh-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.55fr);
    gap: var(--about-gap);
  }
}

.page-about .refresh-split .prose p:first-child {
  margin-top: 0;
}

.page-about .refresh-split .prose p:last-child {
  margin-bottom: 0;
}

/* ---------- 合作生态 ---------- */
.page-about .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  margin-top: 1.75rem;
}

@media (min-width: 720px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .partner-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.35rem 1.25rem 1.5rem;
  border: 2px solid var(--line-soft);
  background: linear-gradient(170deg, rgba(18, 41, 63, 0.88), rgba(10, 26, 43, 0.62));
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .partner-card:hover,
.page-about .partner-card:focus-within {
  transform: translate(-3px, -3px);
  border-color: var(--orange);
  box-shadow: 12px 12px 0 rgba(255, 106, 43, 0.2);
}

.page-about .partner-card .tag {
  align-self: flex-start;
}

.page-about .partner-name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1rem, 2.1vw, 1.15rem);
  letter-spacing: -0.01em;
}

.page-about .partner-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(242, 237, 228, 0.8);
}

.page-about .partner-meta {
  margin-top: auto;
  padding-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--clay);
}

.page-about .partner-foot {
  margin: 1.75rem 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 服务覆盖 ---------- */
.page-about .reach-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.15rem;
  margin-top: 1.75rem;
}

@media (min-width: 640px) {
  .page-about .reach-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

.page-about .reach-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.25rem 1.35rem 1.4rem;
  border: 2px solid var(--line-soft);
  border-left: 4px solid var(--orange);
  background: rgba(18, 41, 63, 0.62);
}

.page-about .reach-stat .stat-label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.page-about .reach-stat .meter {
  height: 8px;
  margin-top: 0.6rem;
  background: rgba(198, 205, 212, 0.16);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.page-about .reach-stat .meter-fill {
  display: block;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--orange), var(--neon));
}

.page-about .reach-stat--mobile .meter-fill {
  width: 68%;
}

.page-about .reach-stat--desktop .meter-fill {
  width: 32%;
}

/* ---------- 收尾引导 ---------- */
.page-about .about-cta {
  margin-top: var(--block-pad);
  padding: clamp(2rem, 5vw, 3.25rem) clamp(1.25rem, 4vw, 3rem);
  border-top: 3px solid var(--orange);
  background:
    linear-gradient(120deg, rgba(255, 106, 43, 0.15), transparent 58%),
    var(--ink-2);
}

.page-about .about-cta h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

.page-about .about-cta p {
  margin: 0 0 1.75rem;
  max-width: 54ch;
  line-height: 1.8;
  color: rgba(242, 237, 228, 0.82);
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
<<<END>>>