.page-about {
  --about-title: clamp(2.4rem, 6vw, 4.8rem);
  --about-shadow: 0 1px 0 var(--line), 0 20px 40px rgba(43, 43, 43, 0.08);
  position: relative;
  background: var(--paper);
  color: var(--text-main);
}

/* ===== Hero 首屏 ===== */
.page-about .about-hero {
  padding: clamp(2.5rem, 6vw, 5rem) var(--gutter) 2.75rem;
  background: linear-gradient(140deg, transparent 0%, transparent 58%, rgba(255, 107, 0, 0.08) 100%);
  border-bottom: 1px solid var(--line);
}

.page-about .breadcrumb {
  margin-bottom: 2rem;
  font-size: 0.85rem;
}

.page-about .hero-inner {
  max-width: 920px;
}

.page-about .hero-inner .index-label {
  margin-bottom: 0.75rem;
}

.page-about .hero-inner h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: var(--about-title);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.page-about .hero-inner .lead {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 700;
  color: var(--orange);
  margin: 0 0 1.25rem;
}

.page-about .hero-desc {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.7;
  color: var(--gray);
  max-width: 720px;
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 2.5rem;
  max-width: 920px;
}

.page-about .stat-cell {
  background: var(--paper);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
}

.page-about .stat-cell dt {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray);
  letter-spacing: 0.05em;
  order: 2;
  margin-top: 0.25rem;
}

.page-about .stat-cell dd {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--ink);
  margin: 0;
  order: 1;
}

/* ===== 发展历程时间轴 ===== */
.page-about .about-journey {
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  position: relative;
  overflow: hidden;
  background: repeating-linear-gradient(0deg, transparent 0, transparent 40px, rgba(43, 43, 43, 0.025) 40px, rgba(43, 43, 43, 0.025) 41px);
}

.page-about .journey-head {
  max-width: 720px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.page-about .journey-head h2,
.page-about .local-head h2,
.page-about .awards-head h2,
.page-about .team-desc h2 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  margin: 0.5rem 0 0.75rem;
}

.page-about .section-intro {
  color: var(--gray);
  line-height: 1.6;
}

.page-about .ma-wall-bg {
  position: absolute;
  top: 1rem;
  right: -2rem;
  width: 160px;
  color: rgba(210, 201, 188, 0.6);
  pointer-events: none;
  z-index: 0;
}

.page-about .ma-wall-bg svg {
  display: block;
  width: 100%;
  height: auto;
  transform: rotate(-6deg);
  filter: drop-shadow(0 2px 0 var(--line));
}

.page-about .timeline {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding-left: 0;
  z-index: 1;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--orange), var(--blue), var(--green));
}

.page-about .timeline-entry {
  position: relative;
  padding-left: 56px;
  margin-bottom: 2.5rem;
}

.page-about .timeline-entry:last-child {
  margin-bottom: 0;
}

.page-about .timeline-entry::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--orange);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 2px var(--orange);
  z-index: 1;
}

.page-about .timeline-entry.entry-v2::before {
  background: var(--blue);
  box-shadow: 0 0 0 2px var(--blue);
}

.page-about .timeline-entry.entry-v3::before {
  background: var(--green);
  box-shadow: 0 0 0 2px var(--green);
}

.page-about .year-mark {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  color: var(--ink);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.page-about .entry-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--orange);
  padding: 1.25rem 1.25rem 1.4rem;
  box-shadow: var(--about-shadow);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .timeline-entry.entry-v2 .entry-card {
  border-left-color: var(--blue);
}

.page-about .timeline-entry.entry-v3 .entry-card {
  border-left-color: var(--green);
}

.page-about .entry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 2px 0 var(--line), 0 28px 48px rgba(43, 43, 43, 0.12);
}

.page-about .entry-card .tag {
  display: inline-block;
  margin-bottom: 0.5rem;
}

.page-about .entry-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0.75rem 0 0.5rem;
}

.page-about .entry-card p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #4a4a4a;
  margin: 0 0 0.75rem;
}

.page-about .entry-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.page-about .entry-facts li {
  font-size: 0.8rem;
  color: var(--gray);
  padding-left: 1rem;
  position: relative;
}

.page-about .entry-facts li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--orange);
}

.page-about .journey-figure {
  margin: clamp(2rem, 5vw, 3.5rem) auto 0;
  max-width: 700px;
}

.page-about .journey-figure img,
.page-about .team-figure img,
.page-about .local-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  box-shadow: var(--about-shadow);
}

.page-about .journey-figure figcaption {
  font-size: 0.8rem;
  color: var(--gray);
  text-align: center;
  padding-top: 0.5rem;
  letter-spacing: 0.08em;
}

/* ===== 数据与团队 ===== */
.page-about .about-team {
  background: var(--ink);
  color: #e9e2d7;
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  position: relative;
  overflow: hidden;
}

.page-about .about-team::before {
  content: "TEAM";
  position: absolute;
  right: -0.2em;
  top: 0.4em;
  font-family: var(--font-display);
  font-weight: 700;
  font-style: italic;
  font-size: clamp(4rem, 12vw, 9rem);
  line-height: 1;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.page-about .team-layout {
  max-width: 980px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-about .team-desc {
  max-width: 760px;
}

.page-about .team-desc .index-label {
  color: var(--green);
}

.page-about .team-desc h2 {
  color: #f5f0e8;
}

.page-about .team-desc p {
  color: #b8b0a5;
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 0;
}

.page-about .team-matrix {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-about .team-matrix li {
  background: #2b2b2b;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-about .matrix-num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1;
  color: var(--orange);
}

.page-about .matrix-role {
  font-weight: 700;
  color: #e9e2d7;
  font-size: 0.95rem;
}

.page-about .matrix-desc {
  font-size: 0.8rem;
  color: rgba(233, 226, 215, 0.55);
}

.page-about .team-figure {
  margin: 2rem 0 0;
  max-width: 600px;
}

/* ===== 本地化运营 ===== */
.page-about .about-local {
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  background: radial-gradient(circle at 85% 20%, rgba(201, 255, 0, 0.08), transparent 36%), var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .local-head {
  max-width: 720px;
  margin-bottom: 2rem;
}

.page-about .local-head p:last-child {
  color: var(--gray);
  line-height: 1.6;
}

.page-about .local-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 980px;
  margin: 0 auto;
}

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

.page-about .local-cards {
  display: grid;
  gap: 1rem;
}

.page-about .local-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 1px 0 rgba(43, 43, 43, 0.04);
  border-left: 4px solid var(--blue);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .local-card:nth-child(2) {
  border-left-color: var(--green);
}

.page-about .local-card:nth-child(3) {
  border-left-color: var(--orange);
}

.page-about .local-card:hover {
  transform: translateX(4px);
  box-shadow: 0 2px 0 var(--line), 0 16px 32px rgba(43, 43, 43, 0.1);
}

.page-about .local-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.page-about .local-card p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--gray);
  margin: 0;
}

/* ===== 资质与认可 ===== */
.page-about .about-awards {
  background: var(--ink);
  color: #e9e2d7;
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
}

.page-about .awards-head {
  max-width: 720px;
  margin-bottom: 2rem;
}

.page-about .awards-head h2 {
  color: #f5f0e8;
}

.page-about .awards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 980px;
  margin: 0 auto 2rem;
}

.page-about .award-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 1.5rem 1.75rem;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-about .award-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

.page-about .award-num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  color: var(--green);
  display: block;
  margin-bottom: 0.75rem;
}

.page-about .award-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #f5f0e8;
  margin: 0 0 0.5rem;
}

.page-about .award-card p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(233, 226, 215, 0.7);
  margin: 0;
}

.page-about .trust-banner {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(90deg, rgba(255, 107, 0, 0.18), rgba(201, 255, 0, 0.1));
  border-left: 4px solid var(--orange);
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(233, 226, 215, 0.85);
}

.page-about .trust-banner p {
  margin: 0;
}

/* ===== CTA 引导 ===== */
.page-about .about-cta {
  padding: clamp(3rem, 6vw, 4.5rem) var(--gutter);
  text-align: center;
  background: repeating-linear-gradient(-45deg, transparent 0px, transparent 12px, rgba(255, 107, 0, 0.05) 12px, rgba(255, 107, 0, 0.05) 13px);
}

.page-about .about-cta h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 900;
  margin: 0 0 0.75rem;
}

.page-about .about-cta p {
  color: var(--gray);
  max-width: 520px;
  margin: 0 auto 1.75rem;
  line-height: 1.6;
}

.page-about .cta-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1rem;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 768px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .stat-cell {
    padding: 1.5rem 1.25rem;
  }

  .page-about .ma-wall-bg {
    width: 260px;
    top: 2rem;
    right: 0;
  }

  .page-about .timeline-entry {
    padding-left: 0;
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 0 56px;
    margin-bottom: 3rem;
  }

  .page-about .timeline::before {
    left: 160px;
  }

  .page-about .timeline-entry::before {
    left: 153px;
    top: 4px;
  }

  .page-about .year-mark {
    text-align: right;
    padding-top: 0.25rem;
    margin-bottom: 0;
  }

  .page-about .team-matrix {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .team-matrix li {
    padding: 1.5rem;
  }

  .page-about .local-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 2.5rem;
  }

  .page-about .awards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .page-about .team-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
  }

  .page-about .team-desc {
    grid-column: 1 / -1;
  }

  .page-about .team-matrix {
    grid-template-columns: repeat(2, 1fr);
    margin: 0;
  }

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