.page-about {
  --about-ink-soft: rgba(32, 36, 43, 0.74);
  --about-hair: rgba(27, 42, 74, 0.16);
  --about-hair-light: rgba(247, 242, 232, 0.22);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* 首屏 */
.page-about .about-lead {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(36px, 6vw, 72px);
  color: var(--paper);
  background-color: #111c33;
  background-image:
    radial-gradient(rgba(247, 242, 232, 0.07) 1px, transparent 1px),
    linear-gradient(155deg, #111c33 0%, #1b2a4a 56%, #0f4c5c 100%);
  background-size: 22px 22px, 100% 100%;
  overflow: hidden;
}

.page-about .about-lead-bg {
  position: absolute;
  right: -10%;
  top: -14%;
  width: min(640px, 82%);
  height: auto;
  color: var(--celadon-light);
  opacity: 0.18;
  pointer-events: none;
}

.page-about .about-lead > .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-lead .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
  color: rgba(247, 242, 232, 0.72);
}

.page-about .about-lead .breadcrumb a {
  color: rgba(247, 242, 232, 0.86);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-lead .breadcrumb a:hover,
.page-about .about-lead .breadcrumb a:focus-visible {
  color: var(--amber-light);
  border-bottom-color: var(--amber-light);
}

.page-about .about-lead-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-about .eyebrow {
  color: var(--amber-light);
  letter-spacing: 0.12em;
  margin: 0 0 14px;
}

.page-about .about-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 6.2vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-about .about-lede {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(0.98rem, 2.2vw, 1.08rem);
  line-height: 1.9;
  color: rgba(247, 242, 232, 0.84);
}

.page-about .about-facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3.4vw, 40px);
  margin-top: clamp(22px, 3.6vw, 34px);
  padding-top: 18px;
  border-top: 1px solid rgba(247, 242, 232, 0.22);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 700;
  color: var(--amber-light);
  line-height: 1.1;
}

.page-about .about-fact-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(247, 242, 232, 0.7);
}

.page-about .about-lead-media {
  margin: 0;
}

.page-about .about-lead-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 26px 50px -30px rgba(0, 0, 0, 0.7);
}

.page-about .about-lead-media .media-caption {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 0.76rem;
  line-height: 1.7;
  color: rgba(247, 242, 232, 0.6);
}

/* 侧栏补充块 */
.page-about .about-rail-note {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-rail-note-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

.page-about .about-rail-link {
  display: block;
  padding: 7px 0;
  font-family: var(--font-display);
  font-size: 0.86rem;
  color: var(--indigo);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease, padding-left 0.18s ease;
}

.page-about .about-rail-link:hover,
.page-about .about-rail-link:focus-visible {
  color: var(--amber-deep);
  border-bottom-color: var(--amber);
  padding-left: 3px;
}

/* 章节时间卷 */
.page-about .about-chapters {
  position: relative;
}

.page-about .about-chapter {
  position: relative;
  padding: clamp(32px, 6vw, 64px) 0 clamp(32px, 6vw, 64px) clamp(28px, 5vw, 54px);
}

.page-about .about-chapter::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(27, 42, 74, 0.32), rgba(79, 143, 123, 0.5));
}

.page-about .about-chapter::after {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(36px, 6vw, 66px);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--amber);
}

.page-about .about-chapter--dim {
  background: linear-gradient(180deg, rgba(216, 208, 194, 0.5), rgba(216, 208, 194, 0.18));
}

.page-about .about-chapter--celadon {
  background: linear-gradient(180deg, rgba(169, 207, 194, 0.55), rgba(247, 242, 232, 0.1));
}

.page-about .about-chapter--deep {
  color: var(--paper);
  background: linear-gradient(160deg, #111c33 0%, #1b2a4a 68%, #0f4c5c 100%);
}

.page-about .about-chapter--deep::before {
  background: linear-gradient(180deg, rgba(247, 242, 232, 0.3), rgba(169, 207, 194, 0.6));
}

.page-about .about-chapter--deep::after {
  background: var(--indigo-deep);
  border-color: var(--celadon-light);
}

.page-about .about-chapter-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: clamp(14px, 3vw, 26px);
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-about .about-chapter-num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5.6vw, 3.2rem);
  font-weight: 700;
  line-height: 0.9;
  color: var(--amber);
}

.page-about .about-chapter--deep .about-chapter-num {
  color: var(--amber-light);
}

.page-about .about-chapter-kicker {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--celadon);
}

.page-about .about-chapter--deep .about-chapter-kicker {
  color: var(--celadon-light);
}

.page-about .about-chapter-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.4vw, 1.95rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--indigo);
}

.page-about .about-chapter--deep .about-chapter-title {
  color: var(--paper);
}

.page-about .about-split {
  display: grid;
  gap: clamp(20px, 4vw, 34px);
}

.page-about .about-text p {
  margin: 0 0 1em;
  font-size: clamp(0.95rem, 2.2vw, 1.02rem);
  line-height: 1.9;
  color: var(--about-ink-soft);
}

.page-about .about-text p:last-child {
  margin-bottom: 0;
}

.page-about .about-chapter--deep .about-text p {
  color: rgba(247, 242, 232, 0.82);
}

.page-about .about-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-note {
  position: relative;
  margin: 0;
  padding: 16px 18px 16px 30px;
  background: rgba(242, 196, 109, 0.2);
  border-left: 3px solid var(--amber);
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-about .about-note::before {
  content: "\201C";
  position: absolute;
  left: 10px;
  top: 4px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--amber-deep);
  opacity: 0.55;
}

.page-about .about-map-list {
  list-style: none;
  margin: clamp(20px, 3.4vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-map-list li {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 13px 6px;
  border-bottom: 1px solid var(--about-hair);
  font-family: var(--font-display);
  font-size: 0.86rem;
  line-height: 1.6;
  transition: background-color 0.2s ease;
}

.page-about .about-map-list li:hover {
  background: rgba(242, 196, 109, 0.16);
}

.page-about .about-map-from {
  color: var(--about-ink-soft);
}

.page-about .about-map-arrow {
  color: var(--amber-deep);
  font-family: var(--font-mono);
}

.page-about .about-map-to {
  color: var(--indigo);
  font-weight: 600;
}

/* 覆盖数据 */
.page-about .about-coverage {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(20px, 3.4vw, 28px);
}

.page-about .about-coverage-item {
  padding: 14px 16px;
  background: rgba(247, 242, 232, 0.72);
  border-top: 2px solid var(--amber);
}

.page-about .about-coverage-num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  font-weight: 700;
  color: var(--indigo);
}

.page-about .about-coverage-label {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--about-ink-soft);
}

/* 图片 */
.page-about .about-figure {
  margin: clamp(22px, 3.6vw, 32px) 0 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  box-shadow: var(--shadow);
}

.page-about .about-figure .media-caption {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--about-ink-soft);
}

.page-about .about-chapter--deep .about-figure .media-caption {
  color: rgba(247, 242, 232, 0.62);
}

.page-about .about-inline-link {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

.page-about .about-inline-link a {
  color: var(--indigo);
  text-decoration: none;
  border-bottom: 1px solid var(--amber);
  transition: color 0.18s ease, background-color 0.18s ease;
}

.page-about .about-inline-link a:hover,
.page-about .about-inline-link a:focus-visible {
  color: var(--indigo-deep);
  background: rgba(242, 196, 109, 0.32);
}

/* 团队数字 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(247, 242, 232, 0.22);
}

.page-about .about-stat {
  padding: 16px 18px;
  background: rgba(17, 28, 51, 0.5);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3.2vw, 1.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--amber-light);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: 0.76rem;
  line-height: 1.6;
  color: rgba(247, 242, 232, 0.72);
}

/* 六类服务 */
.page-about .about-cats {
  list-style: none;
  counter-reset: aboutcat;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-cats li {
  counter-increment: aboutcat;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  background: var(--paper-dim);
  border: 1px solid rgba(27, 42, 74, 0.14);
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--indigo);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-about .about-cats li::before {
  content: "0" counter(aboutcat);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--amber-deep);
}

.page-about .about-cats li:hover {
  border-color: var(--amber);
  background: rgba(242, 196, 109, 0.28);
}

.page-about .about-versions {
  margin-top: clamp(24px, 4vw, 34px);
}

.page-about .about-versions-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

/* 回访 */
.page-about .about-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

.page-about .about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 7px;
  background: var(--celadon);
}

/* 收束 */
.page-about .about-cta {
  padding: clamp(36px, 6vw, 64px) 0;
  color: var(--paper);
  background-color: #1b2a4a;
  background-image: linear-gradient(150deg, #1b2a4a 0%, #0f4c5c 100%);
}

.page-about .about-cta-grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-about .about-cta-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-about .about-cta-text {
  margin: 0;
  max-width: 46ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(247, 242, 232, 0.8);
}

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

.page-about .about-cta-link {
  font-family: var(--font-display);
  font-size: 0.86rem;
  color: var(--celadon-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-cta-link:hover,
.page-about .about-cta-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--amber-light);
}

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

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

@media (min-width: 880px) {
  .page-about .about-lead-grid {
    grid-template-columns: 1.12fr 0.88fr;
    align-items: end;
  }

  .page-about .about-split {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }

  .page-about .about-cta-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }

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

@media (min-width: 1080px) {
  .page-about .about-chapter {
    padding-left: 62px;
  }

  .page-about .about-chapter::before {
    left: 8px;
  }

  .page-about .about-chapter::after {
    left: 2px;
  }
}

@media (max-width: 560px) {
  .page-about .about-map-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-about .about-map-arrow {
    display: none;
  }

  .page-about .about-cta-actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rail-link,
  .page-about .about-map-list li,
  .page-about .about-cats li,
  .page-about .about-inline-link a,
  .page-about .about-cta-link,
  .page-about .about-lead .breadcrumb a {
    transition: none;
  }
}
<<<END>>>