/* ===== 品牌档案 · page-about ===== */
.page-about {
  --about-pad-md: 56px;
  --about-pad-lg: 96px;
  --about-dark-line: rgba(220, 227, 236, 0.2);
  --about-soft-gold: rgba(255, 200, 87, 0.16);
  background: var(--snow);
  color: var(--ink);
  font-family: var(--font-base);
  line-height: 1.6;
}

/* 面包屑 */
.page-about .breadcrumb {
  background: var(--deep-blue);
  border-bottom: 1px solid rgba(220, 227, 236, 0.1);
}
.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  margin: 0;
  list-style: none;
}
.page-about .breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--ease);
}
.page-about .breadcrumb-link:hover {
  color: var(--gold);
}
.page-about .breadcrumb-current {
  color: var(--gold);
  font-size: 14px;
}

/* ===== Hero ===== */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep-blue);
  color: var(--snow);
  padding: var(--about-pad-md) 0 64px;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(115deg, rgba(11, 27, 43, 0.95) 0%, rgba(11, 27, 43, 0.78) 55%, rgba(16, 43, 69, 0.4) 100%);
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -140px;
  width: 320px;
  height: 320px;
  background: var(--signal);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.16;
  z-index: 1;
}
.page-about .about-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-about .about-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}
.page-about .about-hero .container {
  position: relative;
  z-index: 2;
}
.page-about .about-hero-inner {
  max-width: 780px;
}
.page-about .about-hero .section-kicker {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--headline-scale);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--snow);
  margin: 0 0 18px;
}
.page-about .about-hero-desc {
  margin: 0 0 30px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 660px;
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.page-about .about-hero-actions .btn {
  min-width: 168px;
  justify-content: center;
}

/* ===== 页内索引 ===== */
.page-about .about-indexbar {
  background: var(--snow);
  border-bottom: 1px solid var(--mist);
}
.page-about .about-indexbar-inner {
  padding: 18px 0;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.page-about .about-indexbar-label {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--note);
  text-transform: uppercase;
  white-space: nowrap;
}
.page-about .about-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-index-list a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-about .about-index-list a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}
.page-about .about-index-num {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--signal);
  font-weight: 700;
}

/* ===== 通用章节 ===== */
.page-about .about-section {
  position: relative;
  padding: var(--about-pad-md) 0;
}
.page-about .about-section-head {
  align-items: start;
  margin-bottom: 44px;
}
.page-about .about-section-head .col-4 {
  padding-right: 8px;
}
.page-about .about-section-head .col-8 {
  padding-top: 4px;
}
.page-about .about-anchor {
  display: inline-block;
  text-decoration: none;
  line-height: 1;
}
.page-about .about-index {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 100;
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(11, 27, 43, 0.12);
  margin-bottom: 18px;
  transition: color var(--ease);
}
.page-about .about-anchor:hover .about-index {
  color: var(--signal);
}
.page-about .about-section .section-kicker {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.page-about .about-section .section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  line-height: 1.14;
  margin: 0;
  letter-spacing: 0.01em;
}
.page-about .about-lead {
  font-size: 19px;
  line-height: 1.7;
  font-weight: 600;
  margin: 0 0 24px;
  color: var(--ink);
}

/* ===== 01 品牌定位 ===== */
.page-about .about-identity {
  background: var(--snow);
}
.page-about .about-identity::before {
  content: "";
  position: absolute;
  top: 120px;
  right: -90px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: var(--signal);
  opacity: 0.06;
  pointer-events: none;
}
.page-about .about-identity-cols {
  margin-bottom: 26px;
}
.page-about .about-identity-cols p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: #334155;
}
.page-about .about-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-about .about-keywords .tag {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid;
}

/* ===== 02 发展轨迹 ===== */
.page-about .about-journey {
  background: var(--deep-blue);
  color: var(--snow);
}
.page-about .about-journey .about-index {
  color: rgba(244, 246, 251, 0.24);
}
.page-about .about-journey .about-anchor:hover .about-index {
  color: var(--gold);
}
.page-about .about-journey .section-kicker {
  color: var(--gold);
}
.page-about .about-journey .section-title {
  color: var(--snow);
}
.page-about .about-journey .about-lead {
  color: var(--mist);
}

.page-about .about-timeline {
  position: relative;
  padding-left: 30px;
  margin-top: 0;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--about-dark-line);
}
.page-about .about-timeline-row {
  position: relative;
  margin-bottom: 30px;
}
.page-about .about-timeline-row:last-child {
  margin-bottom: 0;
}
.page-about .about-timeline-card {
  position: relative;
  background: var(--panel-blue);
  border: 1px solid rgba(220, 227, 236, 0.16);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius-md);
  padding: 22px 22px 18px;
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}
.page-about .about-timeline-card:hover {
  border-color: var(--gold);
  background: rgba(255, 200, 87, 0.06);
  transform: translateY(-3px);
}
.page-about .about-timeline-step {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.page-about .about-timeline-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  margin: 0 0 10px;
  color: var(--snow);
}
.page-about .about-timeline-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}
.page-about .about-timeline-dot {
  position: absolute;
  left: -28px;
  top: 28px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--signal);
  border: 3px solid var(--deep-blue);
  box-shadow: 0 0 0 2px var(--signal);
  transition: background var(--ease), box-shadow var(--ease);
}
.page-about .about-timeline-row:hover .about-timeline-dot {
  background: var(--gold);
  box-shadow: 0 0 0 2px var(--gold);
}

.page-about .about-journey-figure {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 44px auto;
}
.page-about .about-journey-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 200, 87, 0.26);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.25);
}
.page-about .about-journey-figure figcaption {
  margin-top: 12px;
  text-align: center;
  font-size: 13px;
  color: rgba(244, 246, 251, 0.62);
}

/* ===== 03 数据能力地图 ===== */
.page-about .about-capability {
  background: var(--snow);
}
.page-about .about-capability .about-index {
  color: rgba(11, 27, 43, 0.12);
}
.page-about .about-capability .about-anchor:hover .about-index {
  color: var(--signal);
}
.page-about .about-capability-wrap {
  align-items: center;
  margin-bottom: 40px;
}
.page-about .about-capability-chart-col {
  display: flex;
  justify-content: center;
}
.page-about .about-radar-svg {
  width: 100%;
  max-width: 480px;
  height: auto;
}
.page-about .about-radar-grid circle,
.page-about .about-radar-grid polygon {
  fill: none;
  stroke: var(--mist);
  stroke-width: 1;
  opacity: 0.68;
}
.page-about .about-radar-axes line {
  stroke: var(--mist);
  stroke-width: 1;
  opacity: 0.46;
}
.page-about .about-radar-value {
  fill: rgba(240, 69, 44, 0.16);
  stroke: var(--signal);
  stroke-width: 3;
  stroke-linejoin: round;
}
.page-about .about-radar-dots circle {
  fill: var(--signal);
  stroke: var(--snow);
  stroke-width: 2;
}
.page-about .about-radar-labels text {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  fill: var(--ink);
  letter-spacing: 0.06em;
}

.page-about .about-capability-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .about-capability-item {
  margin: 0;
}
.page-about .about-capability-link {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid var(--mist);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}
.page-about .about-capability-link:hover,
.page-about .about-capability-link:focus-visible {
  border-color: var(--signal);
  box-shadow: 0 6px 20px rgba(11, 27, 43, 0.08);
  transform: translateY(-2px);
}
.page-about .about-capability-index {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--signal);
  line-height: 1.6;
  flex-shrink: 0;
}
.page-about .about-capability-body {
  display: flex;
  flex-direction: column;
}
.page-about .about-capability-body strong {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 4px;
}
.page-about .about-capability-body small {
  font-size: 13px;
  line-height: 1.6;
  color: var(--note);
}

.page-about .about-capability-figure {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
}
.page-about .about-capability-figure img {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-md);
}
.page-about .about-capability-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--note);
}

/* ===== 04 本地化服务 ===== */
.page-about .about-local {
  background: var(--deep-blue);
  color: var(--snow);
}
.page-about .about-local::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--signal) 0%, var(--gold) 100%);
  opacity: 0.7;
}
.page-about .about-local .about-index {
  color: rgba(244, 246, 251, 0.24);
}
.page-about .about-local .about-anchor:hover .about-index {
  color: var(--gold);
}
.page-about .about-local .section-kicker {
  color: var(--gold);
}
.page-about .about-local .section-title {
  color: var(--snow);
}
.page-about .about-local .about-lead {
  color: var(--mist);
}
.page-about .about-local-grid {
  margin-bottom: 28px;
}
.page-about .about-local-card {
  background: var(--panel-blue);
  border: 1px solid rgba(220, 227, 236, 0.14);
  border-radius: var(--radius-md);
  padding: 22px 22px 20px;
  transition: border-color var(--ease);
}
.page-about .about-local-card:hover {
  border-color: rgba(255, 200, 87, 0.5);
}
.page-about .about-local-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--gold);
  margin: 0 0 10px;
}
.page-about .about-local-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}
.page-about .about-local-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.page-about .about-local-actions .btn {
  min-width: 160px;
  justify-content: center;
}

/* ===== 尾声 ===== */
.page-about .about-outro {
  background: var(--panel-blue);
  color: var(--snow);
  padding-top: 64px;
  padding-bottom: 72px;
}
.page-about .about-outro::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--signal) 0%, var(--gold) 45%, transparent 100%);
  opacity: 0.6;
}
.page-about .about-outro .section-kicker {
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.page-about .about-outro h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  margin: 0 0 14px;
  color: var(--snow);
}
.page-about .about-outro-desc {
  margin: 0 0 34px;
  max-width: 620px;
  color: var(--mist);
  line-height: 1.7;
}
.page-about .about-outro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-about .about-outro-card {
  display: flex;
  flex-direction: column;
  position: relative;
  background: rgba(244, 246, 251, 0.04);
  border: 1px solid rgba(220, 227, 236, 0.14);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  text-decoration: none;
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}
.page-about .about-outro-card:hover,
.page-about .about-outro-card:focus-visible {
  border-color: var(--signal);
  background: rgba(240, 69, 44, 0.08);
  transform: translateY(-3px);
}
.page-about .about-outro-card-label {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.page-about .about-outro-card-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--snow);
  line-height: 1.35;
  max-width: calc(100% - 30px);
}
.page-about .about-outro-card-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 22px;
  color: var(--signal);
  transition: transform var(--ease);
}
.page-about .about-outro-card:hover .about-outro-card-arrow {
  transform: translateX(4px);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-about .about-outro-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about {
    --about-pad-md: 72px;
    --about-pad-lg: 110px;
  }
  .page-about .about-hero {
    padding: var(--about-pad-lg) 0 120px;
  }
  .page-about .about-hero-inner {
    max-width: 840px;
  }
  .page-about .about-section {
    padding: var(--about-pad-lg) 0;
  }
  .page-about .about-section-head {
    margin-bottom: 64px;
  }
  .page-about .about-index {
    font-size: 5.5rem;
    margin-bottom: 24px;
  }

  /* 时间轴桌面双列 */
  .page-about .about-timeline {
    padding-left: 0;
  }
  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
  }
  .page-about .about-timeline-row {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    margin-bottom: 44px;
  }
  .page-about .about-timeline-card {
    grid-column: 1 / 6;
  }
  .page-about .about-timeline-row--right .about-timeline-card {
    grid-column: 8 / 13;
  }
  .page-about .about-timeline-dot {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 15px;
    height: 15px;
  }

  .page-about .about-capability-list {
    gap: 12px;
  }
  .page-about .about-capability-link {
    padding: 18px 20px;
  }
  .page-about .about-capability-body strong {
    font-size: 19px;
  }
  .page-about .about-capability-body small {
    font-size: 14px;
  }

  .page-about .about-local-card {
    min-height: 180px;
  }

  .page-about .about-outro-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-outro-card {
    padding: 26px 24px 24px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero h1 {
    font-size: 4.5rem;
  }
}
</PAGE_CSS>