/* ===== 关于我们页面 · page-about ===== */
.page-about {
  --about-grid-line: rgba(176, 196, 222, 0.14);
  --about-orange: var(--color-orange);
  --about-green: var(--color-green);
  background: var(--color-navy-deep);
  color: var(--color-ice);
}

.page-about .container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 10px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--color-blue-gray);
}
.page-about .breadcrumbs a {
  color: var(--color-blue-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-about .breadcrumbs a:hover {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}

/* ---------- 首屏档案区 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 12px 0 52px;
  background: var(--color-navy);
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 42px 42px;
  border-bottom: 1px solid var(--about-grid-line);
}
.page-about .about-hero__grid {
  display: grid;
  gap: 36px;
  padding-top: 28px;
}
.page-about .about-hero__kicker {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--color-orange);
  text-transform: uppercase;
}
.page-about .about-hero__coords {
  margin: 0 0 18px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(176, 196, 222, 0.55);
}
.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.7rem, 4.5vw, 2.7rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--color-ice);
}
.page-about .about-hero__lead {
  max-width: 620px;
  margin: 20px 0 0;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--color-blue-gray);
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.page-about .about-hero__panel {
  position: relative;
  max-width: 460px;
}
.page-about .about-hero__panel-inner {
  background-color: var(--color-navy-deep);
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 16px 16px;
  padding: 20px 22px;
}
.page-about .about-hero__status {
  margin: 14px 0 0;
}
.page-about .about-hero__status-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(176, 196, 222, 0.12);
}
.page-about .about-hero__status-row:last-child {
  border-bottom: none;
}
.page-about .about-hero__status dt {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-blue-gray);
}
.page-about .about-hero__status dd {
  margin: 0;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-ice);
  white-space: nowrap;
}

/* ---------- 主体分栏 ---------- */
.page-about .about-main {
  background: var(--color-navy);
  padding: 56px 0 48px;
}
.page-about .about-main__grid {
  display: grid;
  gap: 56px;
}

/* ---------- 品牌故事 ---------- */
.page-about .about-story__body {
  margin-top: 18px;
  font-family: var(--font-body);
  line-height: 1.85;
  color: rgba(232, 234, 237, 0.82);
}
.page-about .about-story__body p {
  margin: 0 0 14px;
  font-size: 0.9rem;
}
.page-about .about-story__figure {
  margin: 28px 0 0;
}
.page-about .about-story__figure img,
.page-about .about-strength__map img,
.page-about .about-team__figure img {
  max-width: 100%;
  height: auto;
  display: block;
}
.page-about .about-story__values {
  margin-top: 32px;
  border-top: 1px solid var(--about-grid-line);
}
.page-about .about-story__value {
  position: relative;
  padding: 18px 0;
  border-bottom: 1px solid var(--about-grid-line);
}
.page-about .about-story__value-num {
  font-family: var(--font-data);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-orange);
  letter-spacing: 0.1em;
}
.page-about .about-story__value h3 {
  margin: 6px 0 4px;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--color-ice);
}
.page-about .about-story__value p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--color-blue-gray);
}

/* ---------- 数据实力 ---------- */
.page-about .about-strength {
  margin-bottom: 52px;
}
.page-about .about-strength__block {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}
.page-about .about-strength__gauge {
  position: relative;
  margin: 0;
  padding: 20px 18px 16px;
  background: var(--color-navy-deep);
  border-left: 4px solid var(--color-orange);
}
.page-about .about-strength__gauge-svg {
  width: 100%;
  height: auto;
  display: block;
}
.page-about .about-strength__gauge-track {
  stroke: var(--color-navy-light);
}
.page-about .about-strength__gauge-arc {
  stroke: var(--color-orange);
  stroke-dasharray: 177 236;
  stroke-dashoffset: 236;
  animation: about-gauge-arc 1.6s ease-in-out 0.2s forwards;
}
.page-about .about-strength__gauge-needle {
  transform-origin: 100px 110px;
  animation: about-gauge-needle 1.4s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
}
.page-about .about-strength__gauge-caption {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
}
.page-about .about-strength__gauge-caption strong {
  font-family: var(--font-data);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-ice);
}
.page-about .about-strength__gauge-caption span {
  font-size: 0.82rem;
  color: var(--color-blue-gray);
}
.page-about .about-strength__metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--about-grid-line);
  border: 1px solid var(--about-grid-line);
}
.page-about .about-strength__metric {
  background: var(--color-navy-light);
  padding: 16px 14px;
}
.page-about .about-strength__services {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 30px;
  border-top: 1px solid var(--about-grid-line);
}
.page-about .about-strength__service {
  padding: 18px 0;
  border-bottom: 1px solid var(--about-grid-line);
}
.page-about .about-strength__service-index {
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-orange);
}
.page-about .about-strength__service h3 {
  margin: 6px 0 6px;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--color-ice);
  letter-spacing: 0.01em;
}
.page-about .about-strength__service p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.68;
  color: var(--color-blue-gray);
}
.page-about .about-strength__service a {
  color: var(--color-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 20, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-about .about-strength__service a:hover {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}
.page-about .about-strength__map {
  margin: 28px 0 0;
}
.page-about .about-strength__map figcaption {
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-blue-gray);
}

/* ---------- 发展里程碑 ---------- */
.page-about .about-milestone {
  padding-top: 8px;
  border-top: 1px solid var(--about-grid-line);
}
.page-about .about-milestone__scroll {
  margin-top: 20px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  padding-bottom: 10px;
  scrollbar-color: var(--color-orange) var(--color-navy-light);
}
.page-about .about-milestone__scroll::-webkit-scrollbar {
  height: 6px;
}
.page-about .about-milestone__scroll::-webkit-scrollbar-thumb {
  background: var(--color-orange);
  border-radius: 3px;
}
.page-about .about-milestone__scroll::-webkit-scrollbar-track {
  background: var(--color-navy-light);
}
.page-about .about-milestone__track {
  min-width: 1000px;
  position: relative;
  padding: 36px 10px 12px;
}
.page-about .about-milestone__rail {
  position: absolute;
  top: 36px;
  left: 10px;
  right: 10px;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-navy-light) 0 8px,
    transparent 8px 14px
  );
}
.page-about .about-milestone__list {
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-milestone__item {
  position: relative;
  flex: 0 0 190px;
  scroll-snap-align: start;
  cursor: default;
}
.page-about .about-milestone__item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-orange);
  border: 2px solid var(--color-navy-deep);
  box-shadow: 0 0 0 2px var(--color-orange);
  transition: transform 0.2s ease, background 0.2s ease;
}
.page-about .about-milestone__item:hover::before,
.page-about .about-milestone__item:focus-visible::before {
  background: var(--color-green);
  transform: scale(1.35);
}
.page-about .about-milestone__year {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
  color: var(--color-orange);
}
.page-about .about-milestone__card {
  margin-top: 10px;
  padding: 14px 0;
  border-top: 1px solid var(--about-grid-line);
  transition: border-color 0.2s ease;
}
.page-about .about-milestone__item:hover .about-milestone__card,
.page-about .about-milestone__item:focus-visible .about-milestone__card {
  border-top-color: var(--color-orange);
}
.page-about .about-milestone__card h3 {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-ice);
}
.page-about .about-milestone__card p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--color-blue-gray);
}
.page-about .about-milestone__meta {
  display: none;
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--color-green);
}
.page-about .about-milestone__item:hover .about-milestone__meta,
.page-about .about-milestone__item:focus-visible .about-milestone__meta {
  display: block;
}

/* ---------- 团队介绍 ---------- */
.page-about .about-team {
  position: relative;
  padding: 64px 0 72px;
  background: var(--color-paper);
  color: var(--color-ink);
}
.page-about .about-team::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-green) 100%);
}
.page-about .about-team__grid {
  display: grid;
  gap: 40px;
}
.page-about .about-team .section-heading__kicker {
  color: var(--color-orange);
}
.page-about .about-team .section-heading__title,
.page-about .about-team h2 {
  color: var(--color-ink);
}
.page-about .about-team__lead {
  max-width: 640px;
  margin: 18px 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(26, 26, 26, 0.78);
}
.page-about .about-team__roles {
  margin-top: 28px;
  border-top: 1px solid rgba(26, 26, 26, 0.14);
}
.page-about .about-team__role {
  padding: 16px 0;
  border-bottom: 1px solid rgba(26, 26, 26, 0.14);
}
.page-about .about-team__role h3 {
  margin: 0 0 4px;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-ink);
}
.page-about .about-team__role p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.65;
  color: rgba(26, 26, 26, 0.72);
}
.page-about .about-team__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.page-about .about-team__aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-about .about-team__figure {
  margin: 0;
}
.page-about .about-team__honor {
  padding: 20px;
  background: var(--color-navy);
  border-left: 4px solid var(--color-green);
  color: var(--color-ice);
}
.page-about .about-team__honor-tag {
  margin: 0 0 10px;
}
.page-about .about-team__honor p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-blue-gray);
}

/* ---------- 动画 keyframes ---------- */
@keyframes about-gauge-arc {
  to { stroke-dashoffset: 0; }
}
@keyframes about-gauge-needle {
  0% { transform: rotate(-48deg); opacity: 0; }
  45% { opacity: 1; }
  60% { transform: rotate(12deg); }
  75% { transform: rotate(-6deg); }
  100% { transform: rotate(0); opacity: 1; }
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 760px) {
  .page-about .about-strength__block {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: center;
  }
  .page-about .about-strength__services {
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 48px;
    padding-top: 40px;
  }
  .page-about .about-main__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 48px;
  }
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 无障碍：减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-strength__gauge-arc,
  .page-about .about-strength__gauge-needle {
    animation: none;
    stroke-dashoffset: 0;
  }
  .page-about .about-strength__gauge-needle {
    transform: rotate(0);
  }
}