.page-about {
  --about-read: 720px;
  --about-wide: 1100px;
  --about-accent-deep: #B04A08;
  background: var(--pitch-deep);
  color: var(--signal-white);
  font-family: var(--font-body);
}

.page-about h1,
.page-about h2 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0;
}

.page-about h2 {
  font-size: clamp(1.7rem, 4.2vw, 2.7rem);
  margin-bottom: 14px;
}

.page-about h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(1.04rem, 1.6vw, 1.2rem);
  line-height: 1.42;
  letter-spacing: 0;
  margin: 0 0 6px;
}

.page-about p {
  margin: 0 0 1em;
}

.page-about :focus-visible {
  outline: 2px solid var(--score-orange);
  outline-offset: 3px;
}

.page-about [id] {
  scroll-margin-top: clamp(88px, 14vw, 128px);
}

/* 面包屑上下文 */
.page-about .about-top {
  background: var(--pitch-deep);
  padding: clamp(14px, 2.6vw, 22px) 0 0;
  border-bottom: 1px solid var(--line-faint);
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-about .breadcrumb-item {
  color: rgba(244, 247, 242, 0.55);
  display: flex;
  align-items: center;
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 6px;
  color: var(--pitch-line);
}

.page-about .breadcrumb-link {
  color: rgba(244, 247, 242, 0.82);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-about .breadcrumb-link:hover {
  color: var(--score-orange);
  border-bottom-color: var(--score-orange);
}

.page-about .breadcrumb-current {
  color: var(--score-orange);
}

/* 首屏刊头 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 6.5vw, 84px) 0 clamp(24px, 4vw, 42px);
  background:
    radial-gradient(115% 85% at 8% -20%, rgba(31, 92, 67, 0.62) 0%, rgba(6, 26, 19, 0) 58%),
    linear-gradient(180deg, var(--pitch-stand) 0%, var(--pitch-deep) 82%);
}

.page-about .about-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--score-orange);
  margin: 0 0 clamp(12px, 2vw, 20px);
}

.page-about .about-title {
  font-size: clamp(2rem, 6.6vw, 4.3rem);
  max-width: 15ch;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
}

.page-about .about-lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.8);
  margin: 0;
}

/* 年份刻度 */
.page-about .moment-scale {
  list-style: none;
  margin: clamp(28px, 5vw, 54px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-soft);
}

.page-about .moment-scale li {
  min-width: 0;
  padding: 14px 12px 12px;
  border-left: 1px solid var(--line-faint);
  border-bottom: 1px solid var(--line-faint);
}

.page-about .moment-scale li:nth-child(2n + 1) {
  border-left: 0;
  padding-left: 0;
}

.page-about .scale-link {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--score-orange);
  text-decoration: none;
  margin-bottom: 7px;
  transition: color 0.16s ease;
}

.page-about .scale-link:hover {
  color: var(--warm-orange);
}

.page-about .scale-label {
  display: block;
  font-size: 12px;
  line-height: 1.55;
  color: rgba(244, 247, 242, 0.6);
}

/* 首屏配图 */
.page-about .about-hero-figure-wrap {
  background: var(--pitch-deep);
  padding: clamp(18px, 3vw, 28px) 0 clamp(26px, 4vw, 44px);
}

.page-about .about-hero-figure {
  margin: 0;
}

.page-about .about-hero-figure img,
.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero-figure figcaption,
.page-about .team-figure figcaption {
  padding-top: 11px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 247, 242, 0.55);
}

/* 通用章节 */
.page-about .about-section {
  padding: clamp(42px, 7vw, 86px) 0;
}

.page-about .about-section--paper {
  background: var(--paper);
  color: var(--deep-ink);
}

.page-about .section-head {
  max-width: var(--about-read);
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-about .about-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--score-orange);
  margin: 0 0 12px;
}

.page-about .about-section--paper .about-kicker {
  color: var(--about-accent-deep);
}

.page-about .about-sub {
  font-size: clamp(0.97rem, 1.4vw, 1.06rem);
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.72);
  margin: 0;
}

.page-about .about-section--paper .about-sub {
  color: rgba(16, 21, 18, 0.7);
}

/* 长文阅读栏 */
.page-about .about-copy {
  max-width: var(--about-read);
}

.page-about .about-copy p {
  font-size: 1.01rem;
  line-height: 1.9;
  color: rgba(16, 21, 18, 0.86);
}

.page-about .about-copy h2 {
  margin-bottom: 18px;
}

.page-about .about-dropcap::first-letter {
  float: left;
  font-family: var(--font-display);
  font-size: 3.1em;
  line-height: 0.86;
  padding: 6px 10px 0 0;
  color: var(--pitch-line);
}

/* 四类内容 */
.page-about .cluster-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .cluster-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: 1px solid var(--line-faint);
  transition: border-color 0.18s ease;
}

.page-about .cluster-item:hover {
  border-bottom-color: var(--line-strong);
}

.page-about .cluster-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--score-orange);
}

.page-about .cluster-item p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.76);
}

/* 团队 */
.page-about .team-jump {
  list-style: none;
  margin: 0 0 clamp(22px, 4vw, 36px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-about .team-chip {
  display: block;
  padding: 13px 15px;
  border: 1px solid rgba(31, 92, 67, 0.34);
  background: rgba(255, 255, 255, 0.42);
  border-radius: 2px;
  text-decoration: none;
  color: var(--deep-ink);
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.page-about .team-chip:hover,
.page-about .team-chip:focus-visible {
  border-color: var(--score-orange);
  background: #FFFFFF;
  transform: translateY(-2px);
}

.page-about .team-chip-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--about-accent-deep);
}

.page-about .team-chip-name {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  margin: 3px 0 4px;
}

.page-about .team-chip-note {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(16, 21, 18, 0.66);
}

.page-about .team-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

.page-about .team-figure {
  margin: 0;
}

.page-about .team-figure figcaption {
  color: rgba(16, 21, 18, 0.6);
}

.page-about .team-lanes {
  border-top: 1px solid rgba(31, 92, 67, 0.28);
}

.page-about .team-lane {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(31, 92, 67, 0.2);
  transition: background 0.18s ease;
}

.page-about .team-lane:hover {
  background: rgba(255, 255, 255, 0.45);
}

.page-about .team-lane > div {
  min-width: 0;
}

.page-about .lane-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--about-accent-deep);
  padding-top: 5px;
}

.page-about .team-lane p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(16, 21, 18, 0.76);
}

/* 发展历程 */
.page-about .history-band {
  margin: 0 0 clamp(26px, 4vw, 44px);
  overflow: hidden;
  border-radius: 2px;
  border: 1px solid var(--line-faint);
}

.page-about .history-band img {
  display: block;
  width: 100%;
  height: clamp(110px, 20vw, 210px);
  object-fit: cover;
  opacity: 0.6;
}

.page-about .history-band figcaption {
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 247, 242, 0.6);
  background: var(--pitch-stand);
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 27px;
  border-left: 1px solid var(--line-soft);
  max-width: var(--about-wide);
}

.page-about .timeline-item {
  position: relative;
  padding-bottom: clamp(22px, 3.4vw, 34px);
}

.page-about .timeline-item:last-child {
  padding-bottom: 0;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 11px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--score-orange);
  background: var(--pitch-deep);
  transform: rotate(45deg);
}

.page-about .timeline-year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--score-orange);
  margin-bottom: 8px;
}

.page-about .timeline-body {
  max-width: 64ch;
}

.page-about .timeline-body h3 {
  color: var(--signal-white);
}

.page-about .timeline-body p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.74);
}

/* 合作生态 */
.page-about .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-about .filter-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  border: 1px solid rgba(31, 92, 67, 0.42);
  background: transparent;
  color: rgba(16, 21, 18, 0.76);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.page-about .filter-btn:hover {
  border-color: var(--score-orange);
  color: var(--deep-ink);
}

.page-about .filter-btn.is-active,
.page-about .filter-btn[aria-pressed="true"] {
  background: var(--deep-ink);
  border-color: var(--deep-ink);
  color: var(--paper);
}

.page-about .filter-count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(16, 21, 18, 0.6);
  margin-left: auto;
}

.page-about .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(31, 92, 67, 0.3);
}

.page-about .partner-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(31, 92, 67, 0.18);
}

.page-about .partner-tag {
  justify-self: start;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 4px 9px;
  border: 1px solid rgba(31, 92, 67, 0.45);
  border-radius: 2px;
  color: rgpa(16, 21, 18, 0.75);
  color: rgba(16, 21, 18, 0.78);
  white-space: nowrap;
}

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

.page-about .partner-body p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(16, 21, 18, 0.76);
}

/* 服务承诺 */
.page-about .promise-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .promise-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: 1px solid var(--line-faint);
}

.page-about .promise-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--mint);
}

.page-about .promise-item p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.76);
}

/* 收尾 */
.page-about .about-cta {
  background: linear-gradient(180deg, var(--pitch-stand) 0%, var(--pitch-deep) 100%);
  border-top: 1px solid var(--line-soft);
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-about .about-cta-inner {
  max-width: 880px;
}

.page-about .about-cta h2 {
  max-width: 22ch;
  margin-bottom: 14px;
}

.page-about .about-cta p {
  max-width: 58ch;
  color: rgba(244, 247, 242, 0.76);
  font-size: 1rem;
  line-height: 1.82;
  margin: 0;
}

.page-about .about-cta .btn-row {
  margin-top: 24px;
}

@media (min-width: 640px) {
  .page-about .team-jump {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .moment-scale {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .moment-scale li,
  .page-about .moment-scale li:nth-child(2n + 1) {
    border-left: 1px solid var(--line-faint);
    border-bottom: 0;
    padding: 16px 12px 4px;
  }

  .page-about .moment-scale li:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-about .partner-item {
    grid-template-columns: 158px minmax(0, 1fr);
    gap: 16px clamp(18px, 3vw, 30px);
    align-items: start;
  }
}

@media (min-width: 820px) {
  .page-about .cluster-item {
    grid-template-columns: 74px minmax(0, 0.95fr) minmax(0, 1.4fr);
    gap: clamp(16px, 3vw, 32px);
    align-items: start;
    padding: clamp(22px, 3vw, 30px) 0;
  }

  .page-about .cluster-num {
    padding-top: 4px;
  }

  .page-about .promise-item {
    grid-template-columns: 88px minmax(0, 0.8fr) minmax(0, 1.6fr);
    gap: clamp(16px, 3vw, 32px);
    align-items: start;
  }

  .page-about .promise-num {
    padding-top: 2px;
  }
}

@media (min-width: 900px) {
  .page-about .team-body {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .team-jump {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-chip,
  .page-about .team-lane,
  .page-about .cluster-item,
  .page-about .scale-link {
    transition: none;
  }

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