.page-about {
  --about-stripe: repeating-linear-gradient(135deg, rgba(212,175,55,0.16) 0 14px, rgba(230,57,70,0.12) 14px 28px, rgba(30,58,95,0.18) 28px 42px);
  --about-grid-line: rgba(74,111,165,0.22);
  background-color: var(--primary);
  color: var(--white);
  font-family: var(--font-body);
  line-height: 1.8;
  overflow-x: hidden;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

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

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 22px 0 18px;
  font-size: 13px;
  color: rgba(255,255,255,0.65);
}

.page-about .breadcrumb a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  color: var(--secondary-gold);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--secondary-gold);
  font-weight: 700;
}

.page-about .about-hero {
  position: relative;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--about-grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.page-about .about-hero .container {
  position: relative;
  padding: 0 20px 60px;
}

.page-about .about-tag {
  display: inline-block;
  margin: 8px 0 16px;
}

.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-about .about-hero h1::after {
  content: "·档案";
  color: var(--secondary-gold);
}

.page-about .about-lead {
  margin-top: 18px;
  max-width: 760px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255,255,255,0.82);
}

.page-about .about-meta {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-meta span {
  display: inline-block;
  padding: 6px 12px;
  background: var(--glass-blue);
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.85);
  border-radius: 4px;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-about .about-index {
  margin-top: 34px;
  padding: 16px 0 0;
  border-top: 1px solid rgba(255,255,255,0.16);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
}

.page-about .about-index-label {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary-gold);
}

.page-about .about-index a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.page-about .about-index a i {
  font-style: normal;
  font-weight: 900;
  color: var(--accent-red);
  font-size: 12px;
}

.page-about .about-index a:hover {
  color: var(--secondary-gold);
  border-bottom-color: var(--secondary-gold);
}

.page-about .about-timeline {
  background: var(--cream-white);
  color: var(--ink-gray);
  padding: 48px 20px 80px;
}

.page-about .about-timeline .container-wide {
  max-width: 1200px;
  margin: 0 auto;
}

.page-about .history-cover {
  margin: 0;
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-about .history-cover img {
  display: block;
  width: 100%;
  height: clamp(220px, 40vw, 420px);
  object-fit: cover;
}

.page-about .history-cover figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  background: rgba(10, 31, 68, 0.78);
  color: var(--white);
  padding: 8px 14px;
  font-size: 13px;
  border-left: 3px solid var(--secondary-gold);
  border-radius: 0 4px 4px 0;
}

.page-about .history-heading {
  display: flex;
  flex-direction: column;
  margin: 44px 0 36px;
  gap: 8px;
}

.page-about .section-index {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--secondary-gold);
  letter-spacing: 0.04em;
}

.page-about .section-kicker {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-red);
  margin: 2px 0;
}

.page-about .about-timeline h2,
.page-about .about-data h2,
.page-about .about-map h2,
.page-about .about-team h2,
.page-about .about-partners h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  color: var(--primary);
  margin: 0;
}

.page-about .section-desc {
  font-size: 15px;
  color: #55637a;
  line-height: 1.8;
  margin: 6px 0 0;
  max-width: 640px;
}

.page-about .timeline-wrap {
  position: relative;
  margin-top: 20px;
  overflow: hidden;
  border-radius: 12px;
}

.page-about .timeline-wrap::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background-image: var(--about-stripe);
  opacity: 0.7;
  z-index: 4;
}

.page-about .timeline-track {
  position: absolute;
  left: 64px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--secondary-gold), var(--line-blue) 70%, rgba(255,255,255,0.5));
}

.page-about .timeline-list {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 34px 104px;
}

.page-about .tl-flag {
  position: absolute;
  top: 0;
  left: 20px;
  width: 88px;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  z-index: 2;
}

.page-about .tl-flag span {
  display: inline-block;
  background: var(--primary);
  color: var(--secondary-gold);
  padding: 6px 10px;
  border: 1px solid var(--secondary-gold);
  border-radius: 4px;
  font-size: 14px;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 58px;
  top: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--secondary-gold);
  z-index: 3;
}

.page-about .tl-card {
  position: relative;
  background: var(--white);
  border: 1px solid rgba(74, 111, 165, 0.35);
  border-radius: 8px;
  padding: 20px 22px;
  box-shadow: 0 4px 14px rgba(10, 31, 68, 0.08);
}

.page-about .tl-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  color: var(--primary);
  margin: 0 0 8px;
}

.page-about .tl-card p {
  font-size: 14px;
  line-height: 1.8;
  color: #42506a;
  margin: 0;
}

.page-about .about-data {
  background-color: var(--primary);
  color: var(--white);
  padding: 56px 20px;
  position: relative;
  overflow: hidden;
}

.page-about .about-data::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(212,175,55,0.1), transparent 38%),
    linear-gradient(to right, rgba(74,111,165,0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(74,111,165,0.08) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
  pointer-events: none;
}

.page-about .about-data .container {
  position: relative;
}

.page-about .data-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-about .section-index--light {
  color: var(--secondary-gold);
}

.page-about .section-kicker--light {
  color: var(--accent-red);
}

.page-about .about-data h2,
.page-about .about-team h2 {
  color: var(--white);
}

.page-about .section-desc--light {
  color: rgba(255,255,255,0.7);
}

.page-about .data-panel {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .data-item {
  background: var(--glass-blue);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px;
  padding: 18px 14px;
  min-height: 108px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-about .data-num {
  font-family: var(--font-display);
  font-size: clamp(30px, 6vw, 52px);
  font-weight: 900;
  line-height: 1;
  color: var(--white);
  letter-spacing: 0.01em;
}

.page-about .data-item--accent .data-num {
  color: var(--accent-red);
}

.page-about .data-label {
  margin-top: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.75);
  line-height: 1.4;
}

.page-about .data-aside figure {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.16);
  position: relative;
}

.page-about .data-aside img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.page-about .data-aside figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  background: rgba(10, 31, 68, 0.8);
  color: rgba(255,255,255,0.92);
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 4px;
}

.page-about .data-note {
  margin-top: 16px;
  background: var(--glass-blue);
  border-left: 3px solid var(--secondary-gold);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.82);
}

.page-about .about-map {
  background-color: var(--cream-white);
  color: var(--ink-gray);
  padding: 56px 20px;
}

.page-about .map-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .map-copy h2 {
  color: var(--primary);
}

.page-about .map-copy .section-desc {
  color: #42506a;
}

.page-about .map-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .map-points li {
  position: relative;
  padding: 0 0 12px 22px;
  font-size: 15px;
  color: var(--ink-gray);
}

.page-about .map-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--secondary-gold);
  transform: rotate(45deg);
}

.page-about .map-zone {
  margin-top: 24px;
  background-color: var(--white);
  background-image: var(--about-stripe);
  border: 1px solid rgba(74,111,165,0.22);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}

.page-about .map-zone-label {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 12px;
}

.page-about .zone-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .zone-chips span {
  background: rgba(10, 31, 68, 0.06);
  border: 1px solid rgba(10, 31, 68, 0.12);
  color: var(--primary);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 13px;
}

.page-about .map-figure {
  margin: 0;
  position: relative;
  width: 100%;
  max-width: 620px;
}

.page-about .map-figure::before {
  content: "";
  position: absolute;
  inset: -14px 14px 14px -14px;
  border: 2px solid var(--secondary-gold);
  border-radius: 10px;
  pointer-events: none;
}

.page-about .map-figure img {
  display: block;
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
  position: relative;
  z-index: 1;
}

.page-about .map-figure figcaption {
  position: absolute;
  right: 16px;
  bottom: -14px;
  background: var(--accent-red);
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 4px;
  z-index: 2;
}

.page-about .about-team {
  background: var(--deep-blue-2);
  color: var(--white);
  padding: 56px 20px;
  position: relative;
  overflow: hidden;
}

.page-about .about-team::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border: 42px solid rgba(212,175,55,0.07);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .about-team .container {
  position: relative;
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 32px;
}

.page-about .team-card {
  background: var(--white);
  color: var(--ink-gray);
  border-radius: 8px;
  padding: 24px;
  border-top: 4px solid var(--secondary-gold);
  box-shadow: 0 8px 20px rgba(0,0,0,0.16);
}

.page-about .team-card--push {
  border-top-color: var(--accent-red);
}

.page-about .team-code {
  display: inline-block;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(212,175,55,0.16);
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 12px;
}

.page-about .team-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  color: var(--primary);
  margin: 0 0 10px;
}

.page-about .team-card p {
  font-size: 14px;
  line-height: 1.8;
  color: #42506a;
  margin: 0;
}

.page-about .quality-strip {
  margin-top: 28px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--secondary-gold);
  text-align: center;
  letter-spacing: 0.04em;
}

.page-about .about-partners {
  background: var(--cream-white);
  color: var(--ink-gray);
  padding: 56px 20px;
}

.page-about .partner-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .partner-intro h2 {
  color: var(--primary);
}

.page-about .partner-intro .section-desc {
  color: #42506a;
}

.page-about .partner-panel {
  position: relative;
  background: var(--white);
  border: 1px solid rgba(74,111,165,0.22);
  border-radius: 10px;
  padding: 28px;
  overflow: hidden;
  box-shadow: 0 8px 18px rgba(0,0,0,0.06);
}

.page-about .partner-panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-style: solid;
  border-width: 0 72px 72px 0;
  border-color: transparent var(--accent-red) transparent transparent;
  opacity: 0.18;
}

.page-about .partner-big {
  display: block;
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 900;
  line-height: 0.9;
  color: var(--primary);
}

.page-about .partner-big small {
  font-size: 36px;
  color: var(--accent-red);
}

.page-about .partner-label {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #42506a;
}

.page-about .partner-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed rgba(74,111,165,0.3);
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .partner-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--primary);
}

.page-about .partner-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--secondary-gold);
  border-radius: 50%;
  flex: 0 0 auto;
}

.page-about .about-next {
  background: var(--primary);
  color: var(--white);
  padding: 56px 20px;
  text-align: center;
}

.page-about .about-next h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  margin: 0 0 16px;
}

.page-about .about-next p {
  max-width: 680px;
  margin: 0 auto 28px;
  color: rgba(255,255,255,0.75);
  font-size: 15px;
}

.page-about .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.page-about .next-links .btn {
  min-width: 150px;
}

@media (min-width: 768px) {
  .page-about .about-hero .container {
    padding: 0 48px 80px;
  }

  .page-about .about-lead {
    font-size: 18px;
  }

  .page-about .about-index {
    margin-top: 44px;
  }

  .page-about .about-timeline {
    padding: 56px 48px 96px;
  }

  .page-about .history-heading {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    gap: 30px;
  }

  .page-about .section-desc {
    max-width: 420px;
    text-align: right;
  }

  .page-about .history-heading .section-desc {
    text-align: left;
  }

  .page-about .timeline-wrap {
    padding: 0 20px;
  }

  .page-about .timeline-track {
    left: 130px;
  }

  .page-about .timeline-item {
    padding-left: 184px;
    padding-bottom: 48px;
  }

  .page-about .timeline-item::before {
    left: 124px;
  }

  .page-about .tl-flag {
    left: 80px;
    width: 100px;
  }

  .page-about .data-layout {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    gap: 48px;
  }

  .page-about .data-main {
    position: sticky;
    top: 24px;
  }

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

  .page-about .data-item {
    min-height: 130px;
    padding: 22px 16px;
  }

  .page-about .data-aside img {
    height: 320px;
  }

  .page-about .map-layout {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 60px;
    align-items: center;
  }

  .page-about .map-figure img {
    height: 360px;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .team-card--push {
    margin-top: 28px;
  }

  .page-about .partner-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
  }

  .page-about .partner-list {
    grid-template-columns: 1fr 1fr;
  }
}