/* ===== 品牌总览 · page-about ===== */
.page-about {
  --about-line: rgba(227, 232, 238, 0.16);
  --about-dim: rgba(244, 247, 250, 0.72);
  --about-deep-card: #22344A;
  background: var(--k8-white);
  color: var(--k8-ink);
  font-family: var(--k8-font-body);
  overflow-x: hidden;
}

.page-about .about-eyebrow {
  margin: 0;
  font-family: var(--k8-font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--k8-gray);
}

.page-about .about-deep .about-eyebrow {
  color: var(--k8-cyan);
}

.page-about .about-section {
  padding: var(--k8-space-5) 0;
}

.page-about .about-deep {
  background: var(--k8-indigo);
  color: var(--k8-white);
  position: relative;
  overflow: hidden;
}

.page-about .about-deep::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 227, 198, 0.12), transparent 68%);
  pointer-events: none;
}

.page-about .about-deep .k8-shell {
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  margin-bottom: 32px;
}

.page-about .about-crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--k8-font-data);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--about-dim);
}

.page-about .about-crumb__list li + li::before {
  content: "/";
  margin: 0 8px;
  color: rgba(227, 232, 238, 0.35);
}

.page-about .about-crumb a {
  color: var(--about-dim);
  text-decoration: none;
  transition: color 160ms var(--k8-ease);
}

.page-about .about-crumb a:hover {
  color: var(--k8-cyan);
}

.page-about .about-crumb [aria-current="page"] {
  color: var(--k8-white);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--k8-indigo);
  color: var(--k8-white);
  padding: 108px 0 64px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 84% 14%, rgba(43, 227, 198, 0.16), transparent 46%),
    radial-gradient(circle at 8% 92%, rgba(126, 147, 168, 0.16), transparent 54%),
    linear-gradient(180deg, rgba(34, 52, 74, 0.55), rgba(14, 27, 44, 0) 62%);
  pointer-events: none;
}

.page-about .about-hero .k8-shell {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  max-width: 16em;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: clamp(34px, 8vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--k8-white);
}

.page-about .about-hero__lede {
  margin: 24px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--about-dim);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 48px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
  border-left: 1px solid var(--about-line);
}

.page-about .about-hero__facts > li {
  padding: 20px 18px 22px;
  border-right: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-fact__num {
  display: block;
  font-family: var(--k8-font-data);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--k8-cyan);
}

.page-about .about-fact__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--about-dim);
}

/* ---------- 通用标题组 ---------- */
.page-about .about-head {
  max-width: 780px;
  margin-bottom: var(--k8-space-4);
}

.page-about .about-head h2 {
  margin: 12px 0 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.006em;
  color: var(--k8-ink);
}

.page-about .about-head__lede {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--k8-gray);
}

.page-about .about-head--light h2 {
  color: var(--k8-white);
}

.page-about .about-head--light .about-head__lede {
  color: var(--about-dim);
}

.page-about .about-text {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--k8-gray);
}

.page-about .about-deep .about-text {
  color: var(--about-dim);
}

/* ---------- 发展历程：横向时间带 ---------- */
.page-about .about-history {
  background: var(--k8-white);
}

.page-about .about-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 76vw;
  gap: 16px;
  margin-top: 8px;
  padding: 4px 0 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--k8-paper) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-track::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-track::-webkit-scrollbar-thumb {
  background: var(--k8-paper);
  border-radius: var(--k8-r-pill);
}

.page-about .about-node {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 26px;
  scroll-snap-align: start;
  background: #FFFFFF;
  border: 1px solid var(--k8-paper);
  border-radius: var(--k8-r-lg);
  transition: border-color 180ms var(--k8-ease), transform 180ms var(--k8-ease), box-shadow 180ms var(--k8-ease);
}

.page-about .about-node::after {
  content: "";
  position: absolute;
  top: 26px;
  right: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--k8-paper);
  transition: background 180ms var(--k8-ease), transform 180ms var(--k8-ease);
}

.page-about .about-node:hover,
.page-about .about-node:focus-within {
  border-color: var(--k8-cyan);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(14, 27, 44, 0.08);
}

.page-about .about-node:hover::after,
.page-about .about-node:focus-within::after {
  background: var(--k8-cyan);
  transform: scale(1.25);
}

.page-about .about-node__idx {
  font-family: var(--k8-font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--k8-gray);
}

.page-about .about-node__title {
  margin: 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.3;
  color: var(--k8-ink);
}

.page-about .about-node__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--k8-gray);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-role {
  padding: 26px 22px 28px;
  background: var(--about-deep-card);
  border: 1px solid var(--about-line);
  border-radius: var(--k8-r-lg);
  transition: border-color 180ms var(--k8-ease), transform 180ms var(--k8-ease);
}

.page-about .about-role:hover {
  border-color: var(--k8-cyan);
  transform: translateY(-2px);
}

.page-about .about-role__num {
  display: block;
  font-family: var(--k8-font-data);
  font-size: 42px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--k8-cyan);
}

.page-about .about-role__name {
  margin: 16px 0 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.3;
  color: var(--k8-white);
}

.page-about .about-role__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--about-dim);
}

.page-about .about-team__flow {
  margin: 32px 0 0;
  max-width: 76ch;
  padding: 20px 22px;
  border-left: 2px solid var(--k8-cyan);
  border-radius: 0 var(--k8-r-md) var(--k8-r-md) 0;
  background: rgba(34, 52, 74, 0.6);
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 247, 250, 0.86);
}

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

.page-about .about-media {
  overflow: hidden;
  border: 1px solid var(--k8-paper);
  border-radius: var(--k8-r-xl);
  background: var(--k8-paper);
}

.page-about .about-deep .about-media {
  border-color: var(--about-line);
  background: var(--k8-slate);
}

.page-about .about-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-media--wide img {
  aspect-ratio: 16 / 9;
}

.page-about .about-figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--k8-gray);
}

.page-about .about-deep .about-figure__cap {
  color: var(--about-dim);
}

/* ---------- 资质与检测能力 ---------- */
.page-about .about-quality {
  background: var(--k8-white);
}

.page-about .about-quality__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-about .about-quality__body h2 {
  margin: 12px 0 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 36px);
  line-height: 1.2;
  color: var(--k8-ink);
}

.page-about .about-points {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--k8-paper);
}

.page-about .about-points > li {
  padding: 14px 0;
  border-bottom: 1px solid var(--k8-paper);
  font-size: 15px;
  line-height: 1.8;
  color: var(--k8-gray);
}

.page-about .about-points__k {
  display: block;
  margin-bottom: 4px;
  font-family: var(--k8-font-data);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--k8-ink);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-coverage {
  background: var(--k8-white);
  padding-top: 0;
}

.page-about .about-coverage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-about .about-coverage__body h2 {
  margin: 12px 0 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 36px);
  line-height: 1.2;
  color: var(--k8-ink);
}

.page-about .about-regions {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--k8-paper);
}

.page-about .about-regions > li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--k8-paper);
  transition: border-color 160ms var(--k8-ease);
}

.page-about .about-regions > li:hover {
  border-bottom-color: var(--k8-cyan);
}

.page-about .about-regions__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--k8-ink);
}

.page-about .about-regions__val {
  font-family: var(--k8-font-data);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--k8-gray);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-eco__body h2 {
  margin: 12px 0 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 36px);
  line-height: 1.2;
  color: var(--k8-white);
}

.page-about .about-eco__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-eco__stat {
  padding: 18px 14px 20px;
  background: var(--about-deep-card);
  border: 1px solid var(--about-line);
  border-radius: var(--k8-r-md);
  transition: border-color 180ms var(--k8-ease);
}

.page-about .about-eco__stat:hover {
  border-color: var(--k8-cyan);
}

.page-about .about-eco__num {
  display: block;
  font-family: var(--k8-font-data);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  color: var(--k8-cyan);
}

.page-about .about-eco__unit {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--about-dim);
}

/* ---------- 责任 ---------- */
.page-about .about-duty {
  background: var(--k8-white);
}

.page-about .about-duty__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-duty__item {
  padding: 24px 22px 26px;
  background: #FFFFFF;
  border: 1px solid var(--k8-paper);
  border-radius: var(--k8-r-lg);
  transition: border-color 180ms var(--k8-ease), background 180ms var(--k8-ease);
}

.page-about .about-duty__item:hover {
  border-color: var(--k8-cyan);
  background: var(--k8-cyan-soft);
}

.page-about .about-duty__num {
  display: block;
  font-family: var(--k8-font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--k8-orange);
}

.page-about .about-duty__title {
  margin: 12px 0 0;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.32;
  color: var(--k8-ink);
}

.page-about .about-duty__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--k8-gray);
}

/* ---------- 结尾 ---------- */
.page-about .about-cta__shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-cta__body h2 {
  margin: 0;
  max-width: 20em;
  font-family: var(--k8-font-head);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.16;
  color: var(--k8-white);
}

.page-about .about-cta__text {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-dim);
}

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

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
}

.page-about .about-cta__links a {
  font-size: 14px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-section {
    padding: 88px 0;
  }

  .page-about .about-hero {
    padding: 132px 0 76px;
  }

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

  .page-about .about-fact__num {
    font-size: 30px;
  }

  .page-about .about-track {
    grid-auto-columns: 272px;
    gap: 20px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-role {
    padding: 30px 24px 32px;
  }

  .page-about .about-points__k {
    display: inline-block;
    min-width: 104px;
    margin-bottom: 0;
  }

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

  .page-about .about-eco__stats {
    gap: 16px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-about .about-section {
    padding: 104px 0;
  }

  .page-about .about-hero {
    padding: 148px 0 88px;
  }

  .page-about .about-hero__lede {
    font-size: 17px;
  }

  .page-about .about-track {
    grid-auto-columns: 292px;
    padding-bottom: 26px;
  }

  .page-about .about-quality__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 64px;
    align-items: center;
  }

  .page-about .about-coverage__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 64px;
    align-items: start;
  }

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px 64px;
    align-items: start;
  }

  .page-about .about-eco__figure {
    grid-column: 1 / -1;
  }

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

  .page-about .about-cta__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px 64px;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }

  .page-about .about-cta__links {
    grid-column: 1 / -1;
  }
}
<<<END>>>