/* ============================================================
   品牌沿革页 · page-about
   ============================================================ */

.page-about {
  --about-rule: var(--c-lime);
  --about-card: #FFFFFF;
}

.page-about img {
  max-width: 100%;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-indigo);
  color: var(--c-paper);
  padding: clamp(28px, 5vw, 48px) 0 clamp(56px, 9vw, 104px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -10%;
  right: -12%;
  width: min(760px, 62%);
  height: 120%;
  background:
    linear-gradient(112deg,
      transparent 36%,
      rgba(52, 209, 191, 0.12) 36.3%,
      rgba(52, 209, 191, 0.12) 56%,
      transparent 56.3%),
    linear-gradient(112deg,
      transparent 62%,
      rgba(242, 160, 60, 0.15) 62.3%,
      rgba(242, 160, 60, 0.15) 78%,
      transparent 78.3%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb__item a,
.page-about .about-hero .breadcrumb__item span {
  color: var(--c-silver);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(32px, 5vw, 64px);
  align-items: start;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(34px, 5.2vw, 74px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 17ch;
}

.page-about .about-hero__lede {
  margin: 0 0 28px;
  max-width: 48ch;
  color: var(--c-silver);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.9;
}

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

.page-about .about-hero__quick {
  list-style: none;
  margin: clamp(26px, 3vw, 38px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--c-line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.page-about .about-hero__quick a {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .about-hero__quick a:hover {
  color: var(--c-amber);
  border-bottom-color: var(--c-amber);
}

.page-about .about-hero__panel {
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(34, 48, 90, 0.9), rgba(22, 34, 63, 0.9));
  padding: clamp(20px, 2.4vw, 28px);
  box-shadow: var(--shadow-soft);
}

.page-about .about-hero__panel-title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .about-keyfacts {
  margin: 0;
}

.page-about .about-keyfacts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--c-line);
}

.page-about .about-keyfacts__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-keyfacts dt {
  font-size: 14px;
  color: var(--c-silver);
}

.page-about .about-keyfacts dd {
  margin: 0;
  font-size: 21px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-about .about-keyfacts dd span {
  margin-left: 3px;
  font-size: 12px;
  font-weight: 400;
  color: var(--c-silver);
}

/* ---------- 沿革 ---------- */

.page-about .about-origin__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
  aspect-ratio: 18 / 7;
  overflow: hidden;
}

.page-about .about-axis {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
  margin-top: clamp(32px, 5vw, 56px);
}

.page-about .about-axis__track {
  position: relative;
  padding-left: 30px;
}

.page-about .about-axis__track::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 36px;
  bottom: 4px;
  width: 1px;
}

.page-about .about-axis__track--net::before {
  background: linear-gradient(180deg, var(--c-amber), rgba(242, 160, 60, 0.12));
}

.page-about .about-axis__track--cycle::before {
  background: linear-gradient(180deg, var(--c-cyan), rgba(52, 209, 191, 0.12));
}

.page-about .about-axis__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-about .about-axis__dot {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.page-about .about-axis__track--net .about-axis__dot {
  background: var(--c-amber);
}

.page-about .about-axis__track--cycle .about-axis__dot {
  background: var(--c-cyan);
}

.page-about .about-axis__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .about-axis__node {
  position: relative;
  border: 1px solid var(--about-rule);
  background: var(--about-card);
  padding: 18px 20px;
  box-shadow: var(--shadow-soft);
  transition: border-color var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}

.page-about .about-axis__node::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 24px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.page-about .about-axis__track--net .about-axis__node::before {
  background: var(--c-amber);
}

.page-about .about-axis__track--cycle .about-axis__node::before {
  background: var(--c-cyan);
}

.page-about .about-axis__track--net .about-axis__node:hover {
  border-color: var(--c-amber);
  transform: translateY(-2px);
}

.page-about .about-axis__track--cycle .about-axis__node:hover {
  border-color: var(--c-cyan);
  transform: translateY(-2px);
}

.page-about .about-axis__year {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-about .about-axis__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-ink);
}

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

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: var(--c-indigo);
  color: var(--c-paper);
}

.page-about .about-team .section-head__title {
  color: var(--c-paper);
}

.page-about .about-team .section-head__note {
  color: var(--c-silver);
}

.page-about .about-team .section-head__idx {
  color: var(--c-amber);
}

.page-about .about-team__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-about .about-team__pair {
  display: grid;
  margin-top: clamp(24px, 3vw, 36px);
  border: 1px solid var(--c-line);
}

.page-about .about-team__panel {
  padding: clamp(24px, 3vw, 42px);
}

.page-about .about-team__panel--dark {
  background: var(--c-indigo-deep);
  color: var(--c-paper);
}

.page-about .about-team__panel--paper {
  background: var(--c-paper);
  color: var(--c-ink);
  border-top: 1px solid var(--c-line);
}

.page-about .about-team__count {
  margin: 0 0 10px;
  font-size: clamp(38px, 5.6vw, 64px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-about .about-team__panel--dark .about-team__count {
  color: var(--c-amber);
}

.page-about .about-team__panel--paper .about-team__count {
  color: var(--c-indigo);
}

.page-about .about-team__unit {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: inherit;
  opacity: 0.7;
  margin-left: 4px;
}

.page-about .about-team__name {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 700;
}

.page-about .about-team__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  opacity: 0.85;
  max-width: 42ch;
}

.page-about .about-team__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-about .about-team__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  opacity: 0.9;
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.page-about .about-team__handoff {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--c-amber);
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-silver);
}

/* ---------- 网点 ---------- */

.page-about .about-network__grid {
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-network__sub {
  margin: 0 0 10px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .about-network__copy p {
  margin: 0 0 28px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-muted);
}

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

.page-about .about-network__side {
  margin-top: clamp(28px, 4vw, 0px);
}

.page-about .about-sla {
  margin: 0;
  padding: 6px 20px;
  border: 1px solid var(--about-rule);
  background: var(--about-card);
  box-shadow: var(--shadow-soft);
}

.page-about .about-sla__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-sla__row:first-child {
  border-top: 0;
}

.page-about .about-sla dt {
  font-size: 14px;
  color: var(--c-muted);
}

.page-about .about-sla dd {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ink);
  white-space: nowrap;
}

.page-about .about-sla__row--accent {
  background: rgba(52, 209, 191, 0.09);
  margin: 0 -20px;
  padding-left: 20px;
  padding-right: 20px;
}

.page-about .about-sla__row--accent dt {
  color: var(--c-indigo);
  font-weight: 600;
}

.page-about .about-sla__row--accent dd {
  color: var(--c-indigo);
}

/* ---------- 资质 ---------- */

.page-about .about-credential {
  background: var(--c-paper);
  border-top: 1px solid var(--about-rule);
}

.page-about .about-badges {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-badges__item {
  padding: 22px 4px;
  border-bottom: 1px solid var(--about-rule);
  transition: background var(--t-base) var(--ease);
}

.page-about .about-badges__item:hover {
  background: rgba(242, 160, 60, 0.07);
}

.page-about .about-badges__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-indigo);
  letter-spacing: -0.01em;
}

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

/* ---------- 服务标准 ---------- */

.page-about .about-standard {
  background: var(--c-indigo-deep);
  color: var(--c-paper);
}

.page-about .about-standard .section-head__title {
  color: var(--c-paper);
}

.page-about .about-standard .section-head__note {
  color: var(--c-silver);
}

.page-about .about-standard .section-head__idx {
  color: var(--c-cyan);
}

.page-about .about-standard__layout {
  display: grid;
  gap: clamp(28px, 4vw, 50px);
  margin-top: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-about .about-standard__figure {
  margin: 0;
  aspect-ratio: 14 / 9;
  overflow: hidden;
}

.page-about .about-standard__body h3 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-paper);
}

.page-about .about-standard__list {
  list-style: none;
  counter-reset: std;
  margin: 0 0 32px;
  padding: 0;
}

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

.page-about .about-standard__list li {
  counter-increment: std;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--c-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-silver);
}

.page-about .about-standard__list li::before {
  content: counter(std, decimal-leading-zero);
  flex: none;
  min-width: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-amber);
}

.page-about .about-standard__list--alt li::before {
  color: var(--c-cyan);
}

/* ---------- 指标来源 ---------- */

.page-about .about-eco__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(26px, 4vw, 42px);
  align-items: start;
}

.page-about .about-eco__copy p {
  margin: 0 0 20px;
  max-width: 50ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-muted);
}

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

.page-about .about-eco__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}

.page-about .about-eco__stat {
  background: var(--about-card);
  padding: 18px 20px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-about .about-eco__stat-num {
  margin: 0;
  flex: none;
  min-width: 58px;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-indigo);
}

.page-about .about-eco__stat-label {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-about .about-eco__link {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--about-rule);
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-muted);
}

.page-about .about-eco__link a {
  color: var(--c-amber-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 122, 30, 0.45);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .about-eco__link a:hover {
  color: var(--c-ink);
  border-bottom-color: var(--c-ink);
}

/* ---------- 下一步 ---------- */

.page-about .about-next {
  background: var(--c-paper);
  border-top: 1px solid var(--about-rule);
}

.page-about .about-next__panel {
  display: grid;
  gap: 24px;
  padding: clamp(24px, 3.4vw, 44px);
  border: 1px solid var(--about-rule);
  background: var(--about-card);
  box-shadow: var(--shadow-soft);
}

.page-about .about-next__title {
  margin: 10px 0 14px;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--c-ink);
}

.page-about .about-next__text {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-muted);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .about-badges {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-badges__item {
    padding: 24px 22px;
    border-right: 1px solid var(--about-rule);
  }

  .page-about .about-badges__item:nth-child(3n) {
    border-right: 0;
  }
}

@media (min-width: 860px) {
  .page-about .about-axis {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

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

  .page-about .about-team__panel--paper {
    border-top: 0;
    border-left: 1px solid var(--c-line);
  }

  .page-about .about-next__panel {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

  .page-about .about-standard__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }
}

@media (max-width: 899px) {
  .page-about .about-hero {
    padding-bottom: clamp(44px, 8vw, 72px);
  }

  .page-about .about-axis__track {
    padding-left: 26px;
  }

  .page-about .about-axis__node::before {
    left: -24px;
  }

  .page-about .about-hero__quick {
    gap: 8px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-axis__node,
  .page-about .about-hero__quick a,
  .page-about .about-badges__item,
  .page-about .about-eco__link a {
    transition: none;
  }

  .page-about .about-axis__node:hover {
    transform: none;
  }
}