.page-about__crumb {
  padding-top: clamp(14px, 2.4vw, 26px);
}

.page-about .about-hero {
  padding: clamp(18px, 3vw, 30px) 0 clamp(34px, 6vw, 60px);
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(14px, 1.8vw, 22px);
  max-width: 64rem;
}

.page-about .about-hero__title {
  margin: 0;
  font-weight: 800;
  font-size: clamp(1.9rem, 4.8vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .about-hero__title::after {
  content: "";
  display: block;
  width: 74px;
  height: 3px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--rust), var(--green));
}

.page-about .about-hero__intro {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--ink);
}

.page-about .about-hero__intro a {
  color: var(--green-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-about .about-hero__intro a:hover {
  color: var(--rust-deep);
}

.page-about .about-hero__stats {
  list-style: none;
  margin: clamp(6px, 1vw, 12px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-hero__stats .stat {
  background: var(--cream);
  padding: 16px 18px;
  display: grid;
  gap: 4px;
}

.page-about .about-hero__stats .stat__num {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
}

.page-about .about-hero__stats .stat__num small {
  font-size: 0.6em;
  font-weight: 600;
  margin-left: 2px;
}

.page-about .about-hero__stats .stat__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-about .about-chapter {
  padding: clamp(36px, 6vw, 72px) 0;
}

.page-about .about-chapter--paper {
  background: var(--paper);
}

.page-about .section__head {
  max-width: 46rem;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .section__title {
  margin: 8px 0 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .about-lead {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.78;
  color: var(--stone);
}

.page-about .about-lead a,
.page-about .rhythm-note a,
.page-about .partner-note a {
  color: var(--green-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-lead a:hover,
.page-about .rhythm-note a:hover,
.page-about .partner-note a:hover {
  color: var(--rust-deep);
}

/* ---------- 时间轴 ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 30px;
  position: relative;
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--rust), var(--green) 55%, rgba(63, 163, 77, 0.22));
}

.page-about .timeline__item {
  position: relative;
  display: grid;
  gap: 6px;
}

.page-about .timeline__node {
  position: absolute;
  left: -28px;
  top: 18px;
  width: 16px;
  height: 16px;
  box-sizing: border-box;
  background: var(--rust);
  border: 3px solid var(--cream);
  border-radius: 50%;
}

.page-about .about-chapter--paper .timeline__node {
  border-color: var(--paper);
}

.page-about .timeline__year {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--rust-deep);
  font-weight: 700;
}

.page-about .timeline__panel {
  margin: 0;
}

.page-about .timeline__h {
  margin: 0 0 8px;
  font-size: clamp(1rem, 2vw, 1.1rem);
  font-weight: 700;
  color: var(--ink);
}

.page-about .timeline__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .stage-more {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--hairline);
}

.page-about .stage-more__summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--rust-deep);
}

.page-about .stage-more__summary::-webkit-details-marker {
  display: none;
}

.page-about .stage-more__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
}

.page-about .stage-more[open] .stage-more__summary::after {
  content: "\2013";
}

.page-about .stage-more__summary:hover {
  color: var(--rust);
}

.page-about .stage-more__body p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stone);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 36px);
}

.page-about .team-bars {
  display: grid;
  gap: 20px;
}

.page-about .team-bar__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .team-bar__meta .mono {
  font-size: 14px;
  color: var(--green-deep);
}

.page-about .team-bar__track {
  height: 16px;
  margin-top: 8px;
  background: rgba(28, 31, 30, 0.09);
  border-radius: 2px;
  overflow: hidden;
}

.page-about .team-bar__fill {
  display: block;
  height: 100%;
  border-radius: 2px;
}

.page-about .team-bar--edit .team-bar__fill {
  width: 68%;
  background: var(--green);
}

.page-about .team-bar--field .team-bar__fill {
  width: 32%;
  background: var(--rust);
}

.page-about .team-bar__note {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .flow {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .flow__step {
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: grid;
  gap: 6px;
}

.page-about .flow__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--rust);
}

.page-about .flow__step h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .shot {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-about .shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 20px 38px -24px rgba(28, 31, 30, 0.55);
}

.page-about .shot figcaption {
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 一周节奏 ---------- */
.page-about .week-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .week-step {
  background: var(--white);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 15px 18px;
  display: grid;
  gap: 6px;
}

.page-about .week-step:nth-child(even) {
  border-left-color: var(--rust);
}

.page-about .week-step__time {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rust-deep);
  font-weight: 700;
}

.page-about .week-step h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .week-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .rhythm-note {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--rust);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .rhythm-shot {
  margin-top: clamp(24px, 3.4vw, 36px);
}

/* ---------- 纠错 ---------- */
.page-about .fix-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(28, 31, 30, 0.16);
}

.page-about .fix-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(28, 31, 30, 0.16);
}

.page-about .fix-item__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--rust);
  padding-top: 4px;
}

.page-about .fix-item h3 {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .fix-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 合作 ---------- */
.page-about .partner-grid {
  display: grid;
  gap: 12px;
}

.page-about .partner-card {
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  display: grid;
  gap: 8px;
}

.page-about .partner-card__num {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  color: var(--green-deep);
}

.page-about .partner-card h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stone);
}

.page-about .partner-note {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 深色收口 ---------- */
.page-about .about-chapter--ink {
  background: var(--ink);
  color: var(--cream);
}

.page-about .about-chapter--ink .eyebrow {
  color: var(--cyan);
}

.page-about .about-chapter--ink .section__title {
  color: var(--cream);
}

.page-about .city-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-about .city-lead {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 228, 0.82);
}

.page-about .city-facts {
  list-style: none;
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .city-facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: rgba(246, 241, 228, 0.82);
}

.page-about .city-facts .mono {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cyan);
  min-width: 2.2em;
}

.page-about .about-chapter--ink .shot figcaption {
  color: rgba(246, 241, 228, 0.62);
}

.page-about .about-chapter--ink .shot img {
  box-shadow: 0 24px 44px -26px rgba(0, 0, 0, 0.8);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding: clamp(34px, 5vw, 58px) 0;
  background: var(--cream);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 18px;
}

.page-about .about-cta__title {
  margin: 0 0 8px;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.25;
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }

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

@media (min-width: 900px) {
  .page-about .team-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-about .team-grid__media {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .week-steps {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 4px;
  }

  .page-about .week-step {
    border-left: 0;
    border-radius: 0;
    padding: 18px 20px;
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%);
  }

  .page-about .week-step h3 {
    font-size: 14px;
  }

  .page-about .week-step p {
    font-size: 13px;
  }

  .page-about .city-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-about .rhythm-shot {
    max-width: 760px;
  }
}

@media (min-width: 1100px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>