.page-about {
  --about-rail-gap: 0px;
  --ref-paper: rgba(243, 238, 228, 0.04);
  background: var(--ink-900);
  color: var(--text-primary);
  padding-bottom: 0;
}

.page-about .breadcrumb {
  margin: 18px 0 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 26px 0 40px;
}

.page-about .about-hero__band {
  display: flex;
  gap: 3px;
  width: 132px;
  margin-bottom: 22px;
}

.page-about .about-hero__band span {
  display: block;
  height: 8px;
  flex: 1;
  border-radius: 1px;
}

.page-about .about-hero__band span:nth-child(1) {
  background: var(--copper-500);
}

.page-about .about-hero__band span:nth-child(2) {
  background: var(--cinnabar-600);
}

.page-about .about-hero__band span:nth-child(3) {
  background: var(--celadon-500);
}

.page-about .about-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--copper-300);
}

.page-about .about-hero__title {
  max-width: 20em;
  margin: 0 0 20px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-about .about-hero__lede {
  max-width: 38em;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--hair);
}

.page-about .about-stat {
  border-left: 2px solid var(--copper-500);
  padding-left: 12px;
}

.page-about .about-stat:nth-child(2) {
  border-left-color: var(--cinnabar-600);
}

.page-about .about-stat:nth-child(3) {
  border-left-color: var(--celadon-500);
}

.page-about .about-stat:nth-child(4) {
  border-left-color: var(--copper-300);
}

.page-about .about-stat dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.page-about .about-stat dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

/* ---------- 三色带 ---------- */
.page-about .band {
  display: flex;
  gap: 3px;
  height: 8px;
  margin: 34px 0;
}

.page-about .band span {
  display: block;
  flex: 1;
  border-radius: 1px;
}

.page-about .band span:nth-child(1) {
  background: var(--copper-500);
}

.page-about .band span:nth-child(2) {
  background: var(--cinnabar-600);
}

.page-about .band span:nth-child(3) {
  background: var(--celadon-500);
}

/* ---------- 章节框 ---------- */
.page-about .sec {
  padding: 8px 0 10px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-about .sec--tight {
  padding-bottom: 24px;
}

.page-about .sec-frame {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 26px;
}

.page-about .sec-frame__num {
  font-family: var(--font-mono);
  font-weight: 300;
  font-size: 56px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--copper-500);
}

.page-about .sec-frame__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--copper-300);
}

.page-about .sec-frame__title {
  max-width: 24em;
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-about .about-lede {
  max-width: 36em;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-lede--wide {
  max-width: 42em;
  margin-top: 26px;
}

.page-about .about-subtitle {
  margin: 34px 0 14px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.page-about .about-more {
  margin: 26px 0 0;
}

/* ---------- 图片块 ---------- */
.page-about .about-figure {
  margin: 28px 0 0;
}

.page-about .about-figure .figure__frame {
  position: relative;
  border: 1px solid var(--hair);
  background:
    linear-gradient(0deg, rgba(6, 19, 31, 0.5), rgba(6, 19, 31, 0.5)),
    repeating-linear-gradient(90deg, rgba(192, 138, 62, 0.16) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(0deg, rgba(154, 170, 185, 0.12) 0 1px, transparent 1px 44px),
    var(--ink-800);
  overflow: hidden;
}

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

.page-about .about-figure .figure__cap {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* ---------- 纵向时间带 ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--copper-500), rgba(192, 138, 62, 0.1));
}

.page-about .timeline__item {
  position: relative;
  margin: 0 0 18px;
  padding: 16px 16px 16px 44px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--copper-500);
  background: var(--ink-800);
  transition: border-color 0.18s ease, transform 0.18s ease, background 0.18s ease;
}

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

.page-about .timeline__item:hover,
.page-about .timeline__item:focus-visible {
  border-color: var(--hair-strong);
  background: var(--ink-700);
  transform: translateX(3px);
  outline: none;
}

.page-about .timeline__item:focus-visible {
  box-shadow: 0 0 0 2px var(--focus-500);
}

.page-about .timeline__num {
  position: absolute;
  left: 6px;
  top: 18px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--copper-500);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 15px;
  text-align: center;
  letter-spacing: 0;
}

.page-about .timeline__when {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--copper-300);
}

.page-about .timeline__name {
  margin: 6px 0 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}

.page-about .timeline__now {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-primary);
}

.page-about .timeline__then {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-muted);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.22s ease, opacity 0.22s ease;
}

.page-about .timeline__item:hover .timeline__then,
.page-about .timeline__item:focus-visible .timeline__then,
.page-about .timeline__item:focus-within .timeline__then {
  max-height: 160px;
  opacity: 1;
}

/* ---------- 卡片与栅格 ---------- */
.page-about .about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-grid .card {
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-top-width: 3px;
  padding: 20px 18px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-about .about-grid .card:hover {
  transform: translateY(-3px);
  border-color: var(--hair-strong);
}

.page-about .about-grid .card--copper {
  border-top-color: var(--copper-500);
}

.page-about .about-grid .card--celadon {
  border-top-color: var(--celadon-500);
}

.page-about .about-grid .card__num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--copper-300);
}

.page-about .about-grid .card--celadon .card__num {
  color: var(--celadon-500);
}

.page-about .about-grid .card__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  color: var(--text-primary);
}

.page-about .about-grid .card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-grid .card__meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ---------- 编号矩阵 ---------- */
.page-about .numgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-about .numgrid__cell {
  background: var(--ink-800);
  padding: 16px 14px;
}

.page-about .ng-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--copper-300);
}

.page-about .ng-val {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 纸张叠层卡片 ---------- */
.page-about .paper-card {
  position: relative;
  background: var(--paper-100);
  color: var(--ink-on-paper);
  padding: 22px 18px 20px;
  border: 1px solid rgba(16, 28, 40, 0.16);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.22), 0 10px 22px rgba(0, 0, 0, 0.22);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-about .paper-card::before {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  top: -5px;
  height: 5px;
  background: rgba(243, 238, 228, 0.5);
  border: 1px solid rgba(16, 28, 40, 0.12);
  border-bottom: none;
}

.page-about .paper-card:hover,
.page-about .paper-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.24), 0 14px 26px rgba(0, 0, 0, 0.26);
}

.page-about .paper-card .tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  border: 1px solid var(--ink-on-paper);
  color: var(--ink-on-paper);
  background: transparent;
}

.page-about .paper-card__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 19px;
  color: var(--ink-on-paper);
}

.page-about .paper-card__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-on-paper);
}

/* ---------- 资质对照 ---------- */
.page-about .assure {
  border-top: 1px solid var(--hair);
}

.page-about .assure__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hair);
}

.page-about .assure__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--copper-300);
}

.page-about .assure__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 覆盖统计 ---------- */
.page-about .stat-block {
  padding: 22px 18px;
  border: 1px solid var(--hair);
  border-bottom: 3px solid var(--copper-300);
  background: var(--ink-800);
}

.page-about .stat-block:nth-child(2) {
  border-bottom-color: var(--celadon-500);
}

.page-about .stat-block:nth-child(3) {
  border-bottom-color: var(--cinnabar-600);
}

.page-about .stat-block__num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 300;
  font-size: 48px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--copper-300);
}

.page-about .stat-block__label {
  margin: 8px 0 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 16px;
  color: var(--text-primary);
}

.page-about .stat-block__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 四个理由 ---------- */
.page-about .reasons {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .reasons__item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 18px 16px;
  border: 1px solid var(--hair);
  background: var(--ink-800);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-about .reasons__item:hover {
  transform: translateY(-3px);
  border-color: var(--hair-strong);
}

.page-about .reasons__num {
  font-family: var(--font-mono);
  font-weight: 300;
  font-size: 34px;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--copper-500);
}

.page-about .reasons__title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  color: var(--text-primary);
}

.page-about .reasons__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 行动条 ---------- */
.page-about .cta-strip {
  margin: 0 0 34px;
  padding: 28px 18px;
  border: 1px solid var(--hair-strong);
  background:
    linear-gradient(135deg, rgba(22, 50, 74, 0.92), rgba(6, 19, 31, 0.96)),
    var(--ink-800);
}

.page-about .cta-strip__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--copper-300);
}

.page-about .cta-strip__title {
  max-width: 22em;
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(22px, 4.2vw, 32px);
  line-height: 1.3;
  color: var(--text-primary);
}

.page-about .cta-strip__text {
  max-width: 40em;
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .cta-strip .btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid var(--copper-500);
  background: var(--copper-500);
  color: var(--ink-900);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-about .cta-strip .btn:hover,
.page-about .cta-strip .btn:focus-visible {
  background: var(--copper-300);
  border-color: var(--copper-300);
  color: var(--ink-900);
  outline: none;
}

.page-about .cta-strip .btn:focus-visible {
  box-shadow: 0 0 0 2px var(--focus-500);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 44px 0 56px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .sec-frame {
    grid-template-columns: 96px 1fr;
    gap: 24px;
    margin-bottom: 34px;
  }

  .page-about .sec-frame__num {
    font-size: 84px;
    padding-top: 6px;
  }

  .page-about .about-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .assure__row {
    grid-template-columns: 200px 1fr;
    gap: 24px;
    align-items: start;
    padding: 20px 0;
  }

  .page-about .reasons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .cta-strip {
    padding: 40px 36px;
    margin-bottom: 48px;
  }

  .page-about .band {
    margin: 44px 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero {
    padding: 64px 0 72px;
  }

  .page-about .about-hero__title {
    max-width: 17em;
  }

  .page-about .sec-frame {
    grid-template-columns: 128px 1fr;
    gap: 32px;
  }

  .page-about .sec-frame__num {
    font-size: 112px;
  }

  .page-about .about-grid--3 {
    gap: 24px;
  }

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

  .page-about .timeline__item {
    padding: 18px 20px 18px 48px;
  }

  .page-about .about-figure {
    margin-top: 34px;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>