.page-about {
  background: var(--void);
  color: var(--text);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  padding-top: 18px;
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 18px 0 56px;
  border-bottom: 1px solid var(--edge);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(47, 224, 138, 0.10), transparent 58%),
    linear-gradient(180deg, var(--panel) 0%, var(--void) 72%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, var(--grid) 0 1px, transparent 1px 88px);
  opacity: 0.12;
  pointer-events: none;
}

.page-about .about-hero-grid {
  position: relative;
  display: grid;
  gap: 30px;
}

.page-about .about-hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 7.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 12px 0 18px;
  color: var(--text);
}

.page-about .about-hero-lede {
  font-size: 16px;
  line-height: 1.75;
  color: var(--cool);
  max-width: 40em;
  margin: 0;
}

.page-about .hero-figures {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  margin: 26px 0 24px;
  padding-top: 20px;
  border-top: 1px solid var(--edge);
}

.page-about .hero-figure-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .hero-figure-num {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  color: var(--green);
  letter-spacing: -0.01em;
}

.page-about .hero-figure-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--idx);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero-figure {
  margin: 0;
  position: relative;
}

.page-about .about-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--edge);
  pointer-events: none;
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
}

.page-about .about-hero-figure .figure-caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--idx);
  border-left: 2px solid var(--green);
  padding-left: 10px;
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 26px 0 76px;
  }
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }
}

/* ---------- 起点 ---------- */
.page-about .origin-grid {
  display: grid;
  gap: 32px;
}

.page-about .origin-main p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--cool);
  margin: 0 0 16px;
}

.page-about .origin-main .section-title {
  margin: 10px 0 16px;
}

.page-about .origin-main .lede {
  color: var(--text);
  font-size: 18px;
}

.page-about .origin-quote {
  align-self: start;
  padding-left: 18px;
  border-left: 2px solid var(--green);
}

.page-about .origin-quote p {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.5;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 400;
}

.page-about .origin-quote-src {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--idx);
}

@media (min-width: 880px) {
  .page-about .origin-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }
  .page-about .origin-quote {
    margin-top: 54px;
  }
}

/* ---------- 版本演进 ---------- */
.page-about #stages {
  scroll-margin-top: 108px;
}

.page-about .stages-figure {
  margin: 0 0 36px;
}

.page-about .stages-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--edge);
}

.page-about .stages-figure .figure-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--idx);
}

.page-about .stages-wrap .filter-bar {
  margin-bottom: 8px;
}

.page-about .stage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--edge);
}

.page-about .stage {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--edge);
}

.page-about .stage[hidden] {
  display: none;
}

.page-about .stage-year {
  font-size: 17px;
  color: var(--cyan);
  letter-spacing: 0.02em;
  padding-top: 2px;
}

.page-about .stage:last-child .stage-year {
  color: var(--green);
}

.page-about .stage-title {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.45;
  color: var(--text);
}

.page-about .stage-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cool);
}

@media (min-width: 760px) {
  .page-about .stage {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 28px;
    padding: 26px 0;
  }
  .page-about .stage-year {
    font-size: 22px;
    border-right: 1px solid var(--edge);
    padding-right: 16px;
  }
  .page-about .stage-title {
    font-size: 20px;
  }
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: 34px;
}

.page-about .team-grid .section-title {
  margin: 10px 0 16px;
}

.page-about .team-roster {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--edge);
}

.page-about .team-roster li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  grid-template-areas:
    "num role"
    "num desc";
  gap: 3px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--edge);
}

.page-about .roster-num {
  grid-area: num;
  font-size: 24px;
  line-height: 1.1;
  color: var(--green);
}

.page-about .roster-role {
  grid-area: role;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-about .roster-desc {
  grid-area: desc;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cool);
}

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

.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--edge);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 8% 100%);
}

.page-about .team-figure .figure-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--idx);
}

@media (min-width: 900px) {
  .page-about .team-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }
  .page-about .team-figure {
    margin-top: 56px;
  }
}

/* ---------- 数据 ---------- */
.page-about .data-grid {
  display: grid;
  border-top: 1px solid var(--edge);
}

.page-about .data-cell {
  padding: 24px 0;
  border-bottom: 1px solid var(--edge);
}

.page-about .data-cell-num {
  display: block;
  font-size: 26px;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .data-cell-title {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--text);
}

.page-about .data-cell p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
}

.page-about .data-foot {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
  font-size: 14px;
  line-height: 1.8;
  color: var(--cool);
}

@media (min-width: 800px) {
  .page-about .data-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .data-cell {
    padding: 28px 28px 28px 0;
    border-bottom: none;
    border-right: 1px solid var(--edge);
  }
  .page-about .data-cell:last-child {
    border-right: none;
    padding-right: 0;
  }
}

/* ---------- 服务标准 ---------- */
.page-about .standards-grid {
  display: grid;
  gap: 30px;
}

.page-about .standards-head .section-title {
  margin: 10px 0 16px;
}

.page-about .standard-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--edge);
}

.page-about .standard-list li {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--edge);
}

.page-about .standard-key {
  font-size: 16px;
  color: var(--green);
  letter-spacing: 0.01em;
}

.page-about .standard-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
}

@media (min-width: 860px) {
  .page-about .standards-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
  .page-about .standard-list li {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

/* ---------- 覆盖 ---------- */
.page-about .reach-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--edge);
}

.page-about .reach-card {
  padding: 22px 0;
  border-bottom: 1px solid var(--edge);
}

.page-about .reach-title {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--text);
}

.page-about .reach-card p {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
}

.page-about .reach-card .foot-addr {
  color: var(--text);
}

.page-about .reach-meta {
  font-size: 12px;
  color: var(--idx);
  letter-spacing: 0.02em;
  word-break: break-word;
}

.page-about .reach-card--addr {
  border-bottom: none;
}

@media (min-width: 780px) {
  .page-about .reach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
  .page-about .reach-card {
    padding: 26px 0;
  }
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  border-top: 1px solid var(--edge);
  background: linear-gradient(180deg, var(--panel), var(--void));
}

.page-about .about-cta-in {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-about .about-cta-in .section-title {
  margin: 0 0 12px;
  font-size: clamp(24px, 3.6vw, 36px);
}

.page-about .about-cta-in .lede {
  margin: 0;
}

@media (min-width: 860px) {
  .page-about .about-cta-in {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 48px;
  }
  .page-about .about-cta-in .hero-actions {
    justify-content: flex-end;
  }
}
<<<END>>>