.page-about {
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 4px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--gray);
}
.page-about .breadcrumb a {
  color: var(--gray);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .22s var(--ease);
}
.page-about .breadcrumb a:hover {
  color: var(--blue-800);
  border-bottom-color: var(--orange);
}
.page-about .breadcrumb [aria-current="page"] {
  color: var(--blue-800);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 34px 0 46px;
  background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-900) 100%);
  color: var(--paper);
  overflow: hidden;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 96px;
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, .07) 0 1px, transparent 1px 88px);
  pointer-events: none;
}
.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: 30px;
}
.page-about .about-hero .eyebrow {
  margin: 0;
  color: var(--orange-300);
}
.page-about .about-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 62px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-about .about-hero .lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.85;
  letter-spacing: .01em;
  color: rgba(255, 255, 255, .78);
}
.page-about .about-hero__facts {
  list-style: none;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid rgba(255, 255, 255, .16);
  display: flex;
  flex-wrap: wrap;
  gap: 22px 34px;
}
.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.page-about .about-hero__num {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}
.page-about .about-hero__cap {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: rgba(255, 255, 255, .7);
}
.page-about .about-hero__media {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--blue-900);
  box-shadow: var(--shadow-2);
  aspect-ratio: 3 / 2;
}
.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 章节容器与标题 ---------- */
.page-about .section {
  padding: 52px 0;
}
.page-about .about-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin: 0 0 30px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.page-about .about-head__idx {
  align-self: center;
  padding-right: 16px;
  border-right: 1px solid var(--line);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--orange);
}
.page-about .about-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--blue-800);
}
.page-about .about-head__sub {
  flex: 0 0 100%;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 01 定位 ---------- */
.page-about .about-split {
  display: grid;
  gap: 26px;
}
.page-about .about-split__main p {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}
.page-about .about-split__main p:last-child {
  margin-bottom: 0;
}
.page-about .about-split__main a {
  color: var(--blue-600);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .22s var(--ease);
}
.page-about .about-split__main a:hover {
  border-bottom-color: var(--orange);
}
.page-about .about-split__main .about-quote {
  margin: 0 0 22px;
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--orange);
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--blue-800);
}
.page-about .about-split__aside {
  padding: 22px 22px 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-1);
}
.page-about .about-split__aside h3 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-800);
}
.page-about .about-light {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-about .about-light li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray);
}
.page-about .about-light li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-about .about-light .mono {
  padding-top: 3px;
  font-size: 12px;
  font-weight: 700;
  color: var(--orange);
}

/* ---------- 02 五道工序 ---------- */
.page-about .about-flow__media {
  margin: 0 0 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue-800), var(--blue-900));
}
.page-about .about-flow__media img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .about-flow__step {
  padding: 20px 20px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.page-about .about-flow__step:hover {
  border-color: var(--orange);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}
.page-about .about-flow__idx {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--orange);
}
.page-about .about-flow__step h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-800);
}
.page-about .about-flow__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray);
}
.page-about .about-flow__step .about-flow__meta {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--blue-600);
}

/* ---------- 03 团队分工 ---------- */
.page-about .about-team__layout {
  display: grid;
  gap: 26px;
}
.page-about .about-team__lead {
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-1);
}
.page-about .about-team__big {
  display: block;
  font-size: clamp(56px, 9vw, 86px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}
.page-about .about-team__lead p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}
.page-about .about-team__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-team__rows li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.page-about .about-team__rows li:last-child {
  border-bottom: 1px solid var(--line);
}
.page-about .about-team__n {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--blue-600);
  font-variant-numeric: tabular-nums;
}
.page-about .about-team__rows h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-800);
}
.page-about .about-team__rows p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 04 发展历程 ---------- */
.page-about .about-history__media {
  margin: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.page-about .about-history__media img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-history__list {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 26px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 26px;
}
.page-about .about-history__item {
  position: relative;
  display: grid;
  gap: 6px;
}
.page-about .about-history__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 26, .14);
}
.page-about .about-history__year {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--orange);
}
.page-about .about-history__body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-800);
}
.page-about .about-history__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 05 质量标准 ---------- */
.page-about .about-quality__grid {
  display: grid;
  gap: 16px;
}
.page-about .about-quality__card {
  padding: 22px 22px 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue-600);
  border-radius: var(--radius-s) var(--radius-m) var(--radius-m) var(--radius-s);
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.page-about .about-quality__card:hover {
  box-shadow: var(--shadow-2);
}
.page-about .about-quality__card:nth-child(1) {
  border-left-color: var(--orange);
}
.page-about .about-quality__card:nth-child(2) {
  border-left-color: var(--red);
}
.page-about .about-quality__card:nth-child(3) {
  border-left-color: var(--green);
}
.page-about .about-quality__kpi {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.page-about .about-quality__card:nth-child(1) .about-quality__kpi {
  color: var(--orange);
}
.page-about .about-quality__card:nth-child(2) .about-quality__kpi {
  color: var(--red);
}
.page-about .about-quality__card:nth-child(3) .about-quality__kpi {
  color: var(--green);
}
.page-about .about-quality__card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-800);
}
.page-about .about-quality__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray);
}
.page-about .about-quality__note {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 06 行业认可 ---------- */
.page-about .about-honor__panel {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 28px;
  padding: 32px 24px 34px;
  border-radius: var(--radius-m);
  background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-900) 100%);
  color: var(--paper);
}
.page-about .about-honor__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, .055) 0 1px, transparent 1px 96px);
  pointer-events: none;
}
.page-about .about-honor__main,
.page-about .about-honor__years {
  position: relative;
  z-index: 1;
}
.page-about .about-honor__main .eyebrow {
  margin: 0 0 10px;
  color: var(--orange-300);
}
.page-about .about-honor__main h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 31px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-honor__main p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .78);
}
.page-about .about-honor__main p:last-child {
  margin-bottom: 0;
}
.page-about .about-honor__years {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .about-honor__years li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--radius-s);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .86);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}
.page-about .about-honor__years li:hover {
  border-color: var(--orange);
  background: rgba(255, 107, 26, .1);
}
.page-about .about-honor__years .mono {
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-300);
}

/* ---------- 07 收束 ---------- */
.page-about .about-closing__panel {
  position: relative;
  overflow: hidden;
  padding: 32px 24px 34px;
  border-radius: var(--radius-m);
  color: var(--paper);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(255, 107, 26, .42) 0%, rgba(255, 107, 26, 0) 58%),
    linear-gradient(135deg, var(--blue-800), var(--blue-900));
}
.page-about .about-closing__panel h2 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 33px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-closing__points {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.page-about .about-closing__points h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}
.page-about .about-closing__points p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .76);
}
.page-about .about-closing__actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.page-about .about-closing__actions .btn--ghost {
  color: var(--paper);
  border-color: rgba(255, 255, 255, .42);
  background: transparent;
}
.page-about .about-closing__actions .btn--ghost:hover {
  border-color: var(--orange);
  color: var(--orange-300);
}
.page-about .about-closing__link {
  font-size: 13.5px;
  color: rgba(255, 255, 255, .7);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .22s var(--ease);
}
.page-about .about-closing__link:hover {
  color: var(--paper);
  border-bottom-color: var(--orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .about-history__item {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 6px 18px;
  }
}

@media (min-width: 860px) {
  .page-about .section {
    padding: 78px 0;
  }
  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }
  .page-about .about-quality__grid {
    grid-template-columns: 1.15fr 1fr 1fr;
  }
  .page-about .about-honor__panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
    gap: 40px;
    padding: 44px 40px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 58px 0 76px;
  }
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
    align-items: center;
    gap: 56px;
  }
  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 46px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .about-flow__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }
  .page-about .about-flow__step {
    position: relative;
    padding: 22px 16px 26px;
    border-radius: 0;
    border-right-width: 0;
  }
  .page-about .about-flow__step:first-child {
    border-radius: var(--radius-m) 0 0 var(--radius-m);
  }
  .page-about .about-flow__step:last-child {
    border-right-width: 1px;
    border-radius: 0 var(--radius-m) var(--radius-m) 0;
  }
  .page-about .about-flow__step:hover {
    z-index: 2;
    transform: translateY(-3px);
  }
}

@media (min-width: 820px) {
  .page-about .about-closing__panel {
    padding: 46px 42px 48px;
  }
  .page-about .about-closing__points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }
  .page-about .about-closing__points li {
    padding: 0 22px;
    border-left: 1px solid rgba(255, 255, 255, .18);
  }
  .page-about .about-closing__points li:first-child {
    padding-left: 0;
    border-left: 0;
  }
}
<<<END>>>