.page-about {
  --about-line: rgba(46, 59, 52, 0.9);
  --about-clay-wash: rgba(201, 111, 74, 0.12);
  --about-cyan-wash: rgba(25, 245, 208, 0.07);
  color: var(--wb-paper);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(25, 245, 208, 0.06), transparent 62%),
    radial-gradient(700px 420px at 4% 42%, rgba(201, 111, 74, 0.05), transparent 60%),
    var(--wb-ink);
}

.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-about .about-crumbs {
  padding-top: 22px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(24px, 5vw, 56px) 0 clamp(34px, 6vw, 72px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-index {
  order: 2;
}

.page-about .about-index__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--wb-amber);
  margin: 0 0 10px;
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 11px;
  border: 1px solid var(--wb-rock);
  color: var(--wb-ash);
  font-size: 13px;
  text-decoration: none;
  background: rgba(17, 26, 23, 0.6);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--wb-cyan);
  border-color: var(--wb-mint);
}

.page-about .about-index__list .wb-mono {
  font-size: 11px;
  color: var(--wb-clay);
}

.page-about .about-index__stamp {
  display: none;
  margin: 18px 0 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--wb-ash);
}

.page-about .about-hero__main {
  order: 1;
  min-width: 0;
}

.page-about .about-hero__kicker {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 0.12em;
}

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--wb-font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--wb-paper);
  max-width: 16em;
}

.page-about .about-hero__lede {
  margin: 0 0 28px;
  max-width: 40em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--wb-ash);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .about-fact {
  background: var(--wb-coal);
  padding: 16px 18px;
}

.page-about .about-fact__num {
  display: block;
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 600;
  color: var(--wb-cyan);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.page-about .about-fact__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--wb-ash);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 0;
  position: relative;
}

.page-about .about-figure img {
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--wb-rock);
  background: var(--wb-moss);
  box-shadow: 6px 6px 0 rgba(11, 21, 18, 0.75);
}

.page-about .about-figure--hero img {
  aspect-ratio: 4 / 3;
}

.page-about .about-figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-about .about-figure--square img {
  aspect-ratio: 5 / 4;
}

.page-about .about-figure figcaption {
  margin-top: 10px;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--wb-ash);
  border-left: 2px solid var(--wb-rock);
  padding-left: 10px;
  transition: color 0.25s ease, border-color 0.25s ease;
}

@media (hover: hover) {
  .page-about .about-figure figcaption {
    opacity: 0.72;
  }
  .page-about .about-figure:hover figcaption {
    opacity: 1;
    color: var(--wb-mint);
    border-left-color: var(--wb-cyan);
  }
}

/* ---------- 章节通用 ---------- */
.page-about .about-chapter {
  padding-top: clamp(36px, 6vw, 72px);
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-about .about-chapter__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
}

.page-about .about-chapter__side {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--about-line);
  padding-bottom: 10px;
}

.page-about .about-chapter__num {
  margin: 0;
  font-size: 26px;
  font-weight: 600;
  color: var(--wb-clay);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-about .about-chapter__tag {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--wb-ash);
}

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

.page-about .about-chapter__title {
  margin: 0 0 18px;
  font-family: var(--wb-font-display);
  font-weight: 700;
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.005em;
  color: var(--wb-paper);
}

.page-about .about-chapter__intro {
  margin: 0 0 26px;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--wb-ash);
}

.page-about .about-chapter__body > p {
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--wb-ash);
  margin: 0 0 18px;
}

.page-about .about-chapter__foot {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px dashed var(--wb-rock);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--wb-ash);
}

.page-about .about-pull {
  margin: 0 0 24px;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--wb-clay);
  font-family: var(--wb-font-display);
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.5;
  font-weight: 600;
  color: var(--wb-paper);
  letter-spacing: 0;
}

.page-about .about-callout {
  margin-top: 26px;
  padding: 18px 20px;
  background: linear-gradient(135deg, var(--about-clay-wash), rgba(28, 42, 36, 0.85));
  border: 1px solid var(--wb-rock);
  border-left: 3px solid var(--wb-amber);
}

.page-about .about-callout__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--wb-amber);
}

.page-about .about-callout__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--wb-paper);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--wb-amber), var(--wb-mint), var(--wb-rock));
  opacity: 0.7;
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 26px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 11px;
  height: 11px;
  border: 1px solid var(--wb-amber);
  background: var(--wb-ink);
  border-radius: 50%;
}

.page-about .about-timeline__time {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wb-amber);
}

.page-about .about-timeline__head {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--wb-paper);
  line-height: 1.5;
}

.page-about .about-timeline__item p {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--wb-ash);
}

/* ---------- 版本 ---------- */
.page-about .about-figure--wide {
  margin-bottom: 28px;
}

.page-about .about-versions {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-version details {
  margin-bottom: 8px;
  background: linear-gradient(180deg, rgba(28, 42, 36, 0.92), rgba(17, 26, 23, 0.92));
  border: 1px solid var(--wb-rock);
  border-left: 3px solid var(--wb-amber);
}

.page-about .about-version details[open] {
  border-left-color: var(--wb-cyan);
}

.page-about .about-version summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s ease;
}

.page-about .about-version summary::-webkit-details-marker {
  display: none;
}

.page-about .about-version summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--wb-font-mono);
  font-size: 16px;
  color: var(--wb-ash);
}

.page-about .about-version details[open] summary::after {
  content: "−";
  color: var(--wb-cyan);
}

.page-about .about-version summary:hover,
.page-about .about-version summary:focus-visible {
  background: rgba(25, 245, 208, 0.05);
}

.page-about .about-version__tag {
  flex: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--wb-amber);
  letter-spacing: 0.04em;
}

.page-about .about-version__name {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--wb-paper);
  line-height: 1.5;
}

.page-about .about-version__body {
  padding: 0 16px 16px;
  border-top: 1px solid rgba(46, 59, 52, 0.6);
  padding-top: 12px;
}

.page-about .about-version__body p {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--wb-ash);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-bottom: 8px;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
  align-content: start;
}

.page-about .about-stat {
  background: var(--wb-moss);
  padding: 16px 16px 18px;
}

.page-about .about-stat__value {
  display: block;
  font-size: 24px;
  font-weight: 600;
  color: var(--wb-mint);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--wb-ash);
}

/* ---------- 五个理由 ---------- */
.page-about .about-chapter--why {
  background: linear-gradient(180deg, rgba(17, 26, 23, 0.9), rgba(11, 21, 18, 0));
}

.page-about .about-why__head {
  max-width: 44em;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .about-why__head .about-chapter__num {
  margin-bottom: 10px;
}

.page-about .about-reasons {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-reason {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-reason__num {
  font-size: 13px;
  font-weight: 600;
  color: var(--wb-cyan);
  letter-spacing: 0.1em;
}

.page-about .about-reason__body h3 {
  margin: 0 0 8px;
  font-family: var(--wb-font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--wb-paper);
}

.page-about .about-reason__body p {
  margin: 0;
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--wb-ash);
}

.page-about .about-why__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 工作原则标签页 ---------- */
.page-about .about-tabs {
  margin-top: 6px;
}

.page-about .about-tabs .wb-tabs__panel p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--wb-ash);
}

.page-about .about-sign {
  margin-top: 32px;
  padding: 22px 22px 24px;
  background: linear-gradient(150deg, var(--about-cyan-wash), rgba(28, 42, 36, 0.9));
  border: 1px solid var(--wb-rock);
  box-shadow: 8px 8px 0 rgba(11, 21, 18, 0.6);
}

.page-about .about-sign p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--wb-paper);
}

.page-about .about-sign__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面：左窄右宽杂志网格 ---------- */
@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-index {
    order: 1;
    position: sticky;
    top: 96px;
  }

  .page-about .about-hero__main {
    order: 2;
  }

  .page-about .about-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-left: 1px solid var(--wb-rock);
    padding-left: 0;
  }

  .page-about .about-index__list li {
    width: 100%;
  }

  .page-about .about-index__list a {
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    padding: 9px 0 9px 14px;
    background: transparent;
    justify-content: flex-start;
  }

  .page-about .about-index__list a:hover,
  .page-about .about-index__list a:focus-visible {
    border-left-color: var(--wb-cyan);
  }

  .page-about .about-index__stamp {
    display: block;
  }

  .page-about .about-chapter__grid {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-chapter__side {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    border-bottom: 0;
    border-left: 1px solid var(--wb-rock);
    padding: 0 0 0 16px;
    position: sticky;
    top: 96px;
  }

  .page-about .about-chapter__num {
    font-size: 34px;
  }

  .page-about .about-reason {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 20px;
    padding: 26px 0;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__grid {
    grid-template-columns: 224px minmax(0, 1fr);
  }

  .page-about .about-chapter__grid {
    grid-template-columns: 208px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-figure figcaption,
  .page-about .about-index__list a,
  .page-about .about-version summary {
    transition: none;
  }
}
<<<END>>>