.page-about {
  --paper-ink: #1C1A17;
  --paper-soft: rgba(28, 26, 23, 0.7);
  --paper-line: rgba(28, 26, 23, 0.14);
}

/* ---------- 品牌主张 ---------- */
.page-about .about-claim {
  position: relative;
  padding: 34px 0 clamp(56px, 8vw, 92px);
  background:
    radial-gradient(120% 80% at 88% 0%, rgba(201, 162, 75, 0.16), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(63, 208, 201, 0.1), transparent 58%);
}

.page-about .claim-grid {
  display: grid;
  gap: 30px;
  align-items: end;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-kicker::before {
  content: "";
  flex: none;
  width: 46px;
  height: 2px;
  background: var(--gold);
}

.page-about .about-title {
  margin: 0 0 20px;
  font-size: clamp(29px, 5vw, 58px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  font-weight: 800;
  color: var(--pearl);
}

.page-about .about-lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--silver);
}

.page-about .claim-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .claim-stats li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--hair);
}

.page-about .claim-stats li:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-about .cs-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 38px);
  line-height: 1;
  color: var(--gold);
  white-space: nowrap;
}

.page-about .cs-unit {
  margin-left: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gold-soft);
}

.page-about .cs-label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--silver);
}

.page-about .about-claim-media {
  margin: 40px 0 0;
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-about .about-claim-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .media-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--silver);
  border-top: 1px solid var(--hair-cool);
}

/* ---------- 时间线（纸张区） ---------- */
.page-about .about-timeline {
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(56px, 8vw, 96px) 0;
}

.page-about .about-timeline .section-title,
.page-about .about-principles .section-title {
  color: var(--paper-ink);
}

.page-about .about-timeline .section-kicker,
.page-about .about-principles .section-kicker {
  color: var(--paper-soft);
}

.page-about .about-timeline .section-num,
.page-about .about-principles .section-num {
  color: var(--gold-deep);
}

.page-about .tl-list {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  position: relative;
}

.page-about .tl-list::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 12px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(140, 106, 34, 0.4) 72%, rgba(140, 106, 34, 0) 100%);
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 42px 76px;
}

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

.page-about .tl-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-deep);
  background: var(--paper);
  border: 1.5px solid var(--gold-deep);
  border-radius: 50%;
}

.page-about .tl-era {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
}

.page-about .tl-body h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.2vw, 23px);
  letter-spacing: 0.02em;
  color: var(--paper-ink);
}

.page-about .tl-body p {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-soft);
}

/* ---------- 团队与服务网络 ---------- */
.page-about .about-team {
  padding: clamp(56px, 8vw, 96px) 0;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-about .team-grid {
  display: grid;
  gap: 18px;
  margin-top: 8px;
}

.page-about .team-card {
  position: relative;
  padding: 26px 22px 22px;
  background: linear-gradient(180deg, rgba(245, 247, 250, 0.05), rgba(245, 247, 250, 0.02));
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
  box-shadow: var(--shadow-stack);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .team-card::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 14px;
  width: 38px;
  height: 2px;
  background: var(--gold);
}

.page-about .team-card:hover {
  transform: translateY(-4px);
  border-color: var(--hair);
}

.page-about .team-card h3 {
  margin: 12px 0 10px;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--pearl);
}

.page-about .team-card p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--silver);
}

.page-about .about-team-media {
  margin: 44px 0 0;
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--ink);
}

.page-about .about-team-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-about .net-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 40px;
  background: var(--hair-cool);
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
  overflow: hidden;
}

.page-about .net-item {
  padding: 22px 18px;
  background: var(--ink-deep);
}

.page-about .net-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--pearl);
}

.page-about .net-num--gold {
  color: var(--gold);
}

.page-about .net-num--cyan {
  color: var(--cyan);
}

.page-about .net-unit {
  margin-left: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--silver);
}

.page-about .net-label {
  display: block;
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--silver);
}

/* ---------- 选品与费目维护原则 ---------- */
.page-about .about-principles {
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(56px, 8vw, 96px) 0;
}

.page-about .pr-grid {
  display: grid;
  gap: 34px;
  margin-top: 8px;
}

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

.page-about .pr-item {
  position: relative;
  padding: 22px 0 22px 58px;
  border-top: 1px solid var(--paper-line);
}

.page-about .pr-item:last-child {
  border-bottom: 1px solid var(--paper-line);
}

.page-about .pr-num {
  position: absolute;
  left: 0;
  top: 24px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gold-deep);
}

.page-about .pr-item h3 {
  margin: 0 0 8px;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--paper-ink);
}

.page-about .pr-item p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-soft);
}

.page-about .pr-note {
  display: block;
  margin-top: 10px;
  padding-left: 11px;
  border-left: 2px solid var(--gold-deep);
  font-size: 13.5px;
  line-height: 1.62;
  color: rgba(28, 26, 23, 0.56);
}

.page-about .pr-side {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-about .about-pr-media {
  margin: 0;
  border: 1px solid var(--paper-line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-about .about-pr-media .media-caption {
  border-top: 1px solid var(--paper-line);
  color: var(--paper-soft);
}

.page-about .pr-side-note {
  padding: 16px 18px;
  background: rgba(28, 26, 23, 0.05);
  border-left: 3px solid var(--gold-deep);
  border-radius: 0 var(--r) var(--r) 0;
}

.page-about .pr-side-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-soft);
}

/* ---------- 生态与认可 ---------- */
.page-about .about-eco {
  padding: clamp(56px, 8vw, 96px) 0;
  background: var(--ink-deep);
}

.page-about .eco-grid {
  display: grid;
  gap: 30px;
  margin-top: 8px;
}

.page-about .eco-block {
  padding-top: 22px;
  border-top: 2px solid var(--gold);
}

.page-about .eco-block h3 {
  margin: 0 0 12px;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--pearl);
}

.page-about .eco-block p {
  margin: 0 0 18px;
  max-width: 54ch;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--silver);
}

.page-about .tag-wall {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  background: var(--paper);
  padding: clamp(48px, 7vw, 84px) 0;
}

.page-about .cta-panel {
  display: grid;
  gap: 24px;
  padding: 28px 22px;
  background: var(--ink);
  border: 1px solid var(--hair);
  border-radius: var(--r);
  box-shadow: var(--shadow-stack);
}

.page-about .cta-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(21px, 2.6vw, 28px);
  letter-spacing: 0.02em;
  color: var(--pearl);
}

.page-about .cta-copy p {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--silver);
}

.page-about .cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-about .cta-row .link-inline {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .net-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .cta-panel {
    padding: 36px 34px;
  }
}

@media (min-width: 900px) {
  .page-about .claim-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 52px;
  }

  .page-about .about-claim-media {
    margin-top: 52px;
  }

  .page-about .tl-list::before {
    left: 31px;
  }

  .page-about .tl-item {
    padding: 0 0 48px 96px;
  }

  .page-about .tl-num {
    width: 64px;
    height: 64px;
    font-size: 19px;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .team-card:nth-child(1) {
    grid-column: span 7;
  }

  .page-about .team-card:nth-child(2) {
    grid-column: span 5;
  }

  .page-about .team-card:nth-child(3) {
    grid-column: span 5;
  }

  .page-about .team-card:nth-child(4) {
    grid-column: span 7;
  }

  .page-about .pr-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .eco-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
  }

  .page-about .cta-panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
    padding: 40px 40px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-title {
    letter-spacing: 0.03em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-card {
    transition: none;
  }

  .page-about .team-card:hover {
    transform: none;
  }
}