.page-about {
  --about-hero-bg: #171717;
  --about-evo-bg: #0E0F12;
  --about-comp-bg: #F5EFE6;
  --about-orange: #FF6A00;
  --about-blue: #1264FF;
  --about-yellow: #FFE818;
  --about-green: #00B96D;
  --about-font-head: "Oswald", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --about-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}

.page-about .about-breadcrumb-sep {
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.4);
}

/* ========== Hero ========== */
.page-about .about-hero {
  position: relative;
  background: var(--about-hero-bg);
  color: #F5F5F5;
  padding: 64px 0 72px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(18, 100, 255, 0.28) 0%, rgba(18, 100, 255, 0) 70%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 0, 0.18) 0%, rgba(255, 106, 0, 0) 70%);
  pointer-events: none;
}

.page-about .about-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.page-about .about-hero-eyebrow {
  color: #FF6A00;
  letter-spacing: 0.14em;
  margin-bottom: 16px;
}

.page-about .about-hero h1 {
  font-family: var(--about-font-head);
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.14;
  font-weight: 700;
  color: #F5F5F5;
  margin: 0 0 20px;
  letter-spacing: 0.01em;
}

.page-about .about-h1-highlight {
  color: #FF6A00;
  position: relative;
  white-space: nowrap;
}

.page-about .about-hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 245, 245, 0.78);
  max-width: 640px;
  margin-bottom: 32px;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-about .about-hero-actions .btn-ghost {
  border-color: rgba(245, 245, 245, 0.35);
  color: #F5F5F5;
}

.page-about .about-hero-actions .btn-ghost:hover {
  border-color: rgba(245, 245, 245, 0.8);
  background: rgba(245, 245, 245, 0.06);
}

.page-about .about-hero-rail {
  display: none;
}

.page-about .about-hero-stripe {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, #1264FF 0%, #1264FF 30%, #FF6A00 30%, #FF6A00 70%, #FFE818 70%, #FFE818 100%);
  z-index: 2;
}

/* ========== 品牌简介 ========== */
.page-about .about-intro {
  background: var(--bg-cream);
  padding: 88px 0 96px;
}

.page-about .about-intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-about .about-img-frame {
  position: relative;
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  background: #E5DED0;
}

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

.page-about .about-img-frame--portrait {
  aspect-ratio: 4 / 3;
}

.page-about .about-img-full {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-intro-media {
  position: relative;
}

.page-about .about-intro-media-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(17, 17, 17, 0.78);
  color: #F5F5F5;
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.page-about .about-intro-copy {
  padding-top: 4px;
}

.page-about .about-intro-copy .eyebrow {
  color: #1264FF;
  margin-bottom: 12px;
}

.page-about .about-intro-copy h2 {
  font-family: var(--about-font-head);
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.15;
  color: var(--text-heading);
  margin: 0 0 8px;
}

.page-about .about-intro-copy h2::before {
  content: "01";
  display: block;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: #FF6A00;
  font-family: var(--about-font-head);
  margin-bottom: 8px;
}

.page-about .about-intro-lead {
  font-size: 17px;
  line-height: 1.7;
  font-weight: 600;
  color: #111111;
  margin-bottom: 16px;
}

.page-about .about-intro-text p {
  font-size: 15px;
  line-height: 1.85;
  color: #2E2E2E;
  margin-bottom: 14px;
}

.page-about .about-intro-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .about-fact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #EAE3D6;
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
}

.page-about .about-fact-item dt {
  color: #2E2E2E;
  font-weight: 600;
}

.page-about .about-fact-item dd {
  margin: 0;
  color: #1264FF;
  font-weight: 700;
}

/* ========== 发展沿革 ========== */
.page-about .about-evolution {
  background: var(--about-evo-bg);
  color: #F5F5F5;
  padding: 88px 0 96px;
}

.page-about .about-section-head {
  margin-bottom: 40px;
}

.page-about .about-section-head--dark .eyebrow {
  color: #FF6A00;
}

.page-about .about-section-head .eyebrow {
  color: #1264FF;
  letter-spacing: 0.16em;
  margin-bottom: 12px;
}

.page-about .about-section-head h2 {
  font-family: var(--about-font-head);
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.15;
  margin: 0 0 12px;
  color: inherit;
}

.page-about .about-section-lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 245, 245, 0.6);
  max-width: 560px;
}

.page-about .about-evo-track {
  position: relative;
  margin-bottom: 40px;
}

.page-about .about-evo-svg-wrap {
  position: relative;
}

.page-about .about-evo-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-evo-labels {
  display: flex;
  margin: 12px 0 0;
  gap: 8px;
}

.page-about .about-evo-label {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--about-font-head);
}

.page-about .about-evo-label--v1 {
  text-align: left;
}

.page-about .about-evo-label--v2 {
  text-align: center;
}

.page-about .about-evo-label--v3 {
  text-align: right;
}

.page-about .about-evo-year {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: rgba(245, 245, 245, 0.55);
}

.page-about .about-evo-version {
  font-size: 20px;
  font-weight: 700;
  color: #F5F5F5;
}

.page-about .about-evo-label--v3 .about-evo-version {
  color: #FF6A00;
}

.page-about .about-evo-label--v2 .about-evo-version {
  color: #1264FF;
}

.page-about .about-evo-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-evo-card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 20px;
  padding: 28px 24px 28px 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-about .about-evo-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
}

.page-about .about-evo-card-num {
  position: absolute;
  right: 20px;
  top: 14px;
  font-family: var(--about-font-head);
  font-size: 52px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.page-about .about-evo-card h3 {
  font-family: var(--about-font-head);
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 10px;
  color: #F5F5F5;
}

.page-about .about-evo-card--v2 h3 {
  color: #7BA6FF;
}

.page-about .about-evo-card--v3 h3 {
  color: #FF8A3B;
}

.page-about .about-evo-card p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 245, 245, 0.62);
  margin: 0;
}

/* ========== 平台数据规模 ========== */
.page-about .about-stats {
  background: var(--bg-cream);
  padding: 88px 0 96px;
}

.page-about .about-stats .about-section-head h2 {
  color: var(--text-heading);
}

.page-about .about-stats .about-section-lead {
  color: #2E2E2E;
}

.page-about .about-stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 48px;
}

.page-about .about-stat-cell {
  position: relative;
  background: #EAE3D6;
  border-radius: 20px;
  padding: 28px 24px 24px;
  overflow: hidden;
}

.page-about .about-stat-num {
  font-family: var(--about-font-head);
  font-size: clamp(48px, 9vw, 76px);
  font-weight: 700;
  line-height: 1;
  display: block;
  color: #111111;
  margin-bottom: 8px;
}

.page-about .about-stat-num small {
  font-size: 22px;
  font-weight: 500;
  color: #2E2E2E;
  margin-left: 4px;
}

.page-about .about-stat-label {
  font-size: 14px;
  color: #2E2E2E;
  display: block;
}

.page-about .about-stat-bar {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 5px;
  width: 100%;
}

.page-about .about-stat-bar--blue {
  background: #1264FF;
}

.page-about .about-stat-bar--orange {
  background: #FF6A00;
}

.page-about .about-stat-bar--green {
  background: #00B96D;
}

.page-about .about-stat-bar--yellow {
  background: #FFE818;
}

.page-about .about-stats-bottom {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.page-about .about-stats-copy p {
  font-size: 15px;
  line-height: 1.85;
  color: #2E2E2E;
  margin: 0 0 14px;
}

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

.page-about .about-stats-chart {
  border-radius: 24px;
  overflow: hidden;
  margin: 0;
  background: #EAE3D6;
}

.page-about .about-stats-chart img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ========== 资质与合规 ========== */
.page-about .about-compliance {
  background: var(--about-comp-bg);
  padding: 88px 0 96px;
}

.page-about .about-compliance .about-section-head h2 {
  color: var(--text-heading);
}

.page-about .about-compliance .about-section-lead {
  color: #2E2E2E;
}

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

.page-about .about-comp-card {
  position: relative;
  border-radius: 22px;
  padding: 32px 24px 24px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  border: 1px solid rgba(17, 17, 17, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-comp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(17, 17, 17, 0.1);
}

.page-about .about-comp-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 34px;
  font-weight: 700;
  color: rgba(17, 17, 17, 0.16);
  font-family: var(--about-font-head);
  line-height: 1;
}

.page-about .about-comp-card--blue {
  background: #DCE6FF;
}

.page-about .about-comp-card--orange {
  background: #FFE0CC;
}

.page-about .about-comp-card--green {
  background: #D7F5E7;
}

.page-about .about-comp-card--yellow {
  background: #FFF7C9;
}

.page-about .about-comp-card--ink {
  background: #1E1E1E;
  border-color: transparent;
}

.page-about .about-comp-card--ink .about-comp-badge {
  color: rgba(245, 245, 245, 0.2);
}

.page-about .about-comp-card h3 {
  font-family: var(--about-font-head);
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  color: #111111;
}

.page-about .about-comp-card--ink h3 {
  color: #F5F5F5;
}

.page-about .about-comp-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #2E2E2E;
  margin: 0;
}

.page-about .about-comp-card--ink p {
  color: rgba(245, 245, 245, 0.7);
}

/* ========== 服务团队 ========== */
.page-about .about-team {
  background: var(--bg-cream);
  padding: 88px 0 96px;
  border-top: 1px solid var(--border-soft);
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

.page-about .about-team-copy .eyebrow {
  color: #FF6A00;
  margin-bottom: 12px;
}

.page-about .about-team-copy h2 {
  font-family: var(--about-font-head);
  font-size: clamp(28px, 4.6vw, 44px);
  color: var(--text-heading);
  margin: 0 0 12px;
}

.page-about .about-team-copy h2::before {
  content: "05";
  display: block;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: #1264FF;
  font-family: var(--about-font-head);
  margin-bottom: 8px;
}

.page-about .about-team-lead {
  font-size: 17px;
  line-height: 1.7;
  color: #2E2E2E;
  font-weight: 600;
  margin-bottom: 28px;
}

.page-about .about-team-list {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
}

.page-about .about-team-list li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-soft);
}

.page-about .about-team-list li:first-child {
  padding-top: 0;
}

.page-about .about-team-item-num {
  font-family: var(--about-font-head);
  font-size: 22px;
  font-weight: 700;
  color: #FF6A00;
  line-height: 1.2;
  flex-shrink: 0;
}

.page-about .about-team-list strong {
  display: block;
  font-size: 16px;
  color: #111111;
  margin-bottom: 6px;
}

.page-about .about-team-list p {
  font-size: 14px;
  line-height: 1.75;
  color: #2E2E2E;
  margin: 0;
}

.page-about .about-team-contact {
  background: #EAE3D6;
  border-radius: 20px;
  padding: 24px;
  display: grid;
  gap: 12px;
}

.page-about .about-team-contact p {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 14px;
  line-height: 1.6;
  color: #2E2E2E;
  margin: 0;
}

.page-about .about-team-contact p span {
  font-weight: 700;
  color: #111111;
  min-width: 96px;
}

.page-about .about-team-contact a {
  color: #1264FF;
  text-decoration: none;
  word-break: break-all;
}

.page-about .about-team-contact a:hover {
  text-decoration: underline;
}

.page-about .about-team-media {
  position: relative;
}

.page-about .about-team-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 13px;
  color: #2E2E2E;
}

.page-about .about-team-note-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #00B96D;
  box-shadow: 0 0 0 4px rgba(0, 185, 109, 0.15);
}

.page-about .about-team-note p {
  margin: 0;
}

/* ========== CTA ========== */
.page-about .about-cta {
  background: #171717;
  color: #F5F5F5;
  padding: 80px 0 88px;
  position: relative;
  overflow: hidden;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  top: -60px;
  left: 20%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 0, 0.16) 0%, rgba(255, 106, 0, 0) 70%);
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(18, 100, 255, 0.2) 0%, rgba(18, 100, 255, 0) 70%);
}

.page-about .about-cta-inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.page-about .about-cta-inner .eyebrow {
  color: #FF6A00;
  margin-bottom: 12px;
}

.page-about .about-cta-inner h2 {
  font-family: var(--about-font-head);
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.15;
  margin: 0 0 16px;
  color: #F5F5F5;
}

.page-about .about-cta-inner p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 245, 245, 0.7);
  margin-bottom: 32px;
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-cta-actions .btn-ghost {
  border-color: rgba(245, 245, 245, 0.3);
  color: #F5F5F5;
}

.page-about .about-cta-actions .btn-ghost:hover {
  border-color: rgba(245, 245, 245, 0.7);
  background: rgba(245, 245, 245, 0.06);
}

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

  .page-about .about-compliance-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-evo-cards {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 96px 0 120px;
  }

  .page-about .about-hero-inner {
    grid-template-columns: 1fr 160px;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-hero-rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    height: 380px;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    border-right: 1px solid rgba(255, 255, 255, 0.12);
  }

  .page-about .about-hero-rail-num {
    font-family: var(--about-font-head);
    font-size: 76px;
    font-weight: 700;
    line-height: 1;
    color: #FF6A00;
  }

  .page-about .about-hero-rail-name {
    font-family: var(--about-font-head);
    font-size: 20px;
    letter-spacing: 0.3em;
    color: #F5F5F5;
  }

  .page-about .about-hero-rail-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, #FF6A00 0%, #1264FF 100%);
  }

  .page-about .about-hero-rail-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #1264FF;
    box-shadow: 0 0 0 6px rgba(18, 100, 255, 0.2);
  }

  .page-about .about-hero-rail-caption {
    writing-mode: vertical-rl;
    font-family: var(--about-font-head);
    font-size: 12px;
    letter-spacing: 0.42em;
    color: rgba(245, 245, 245, 0.4);
  }

  .page-about .about-intro-grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-stats-bottom {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-about .about-evo-cards {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
  }

  .page-about .about-team-grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-compliance-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero-inner {
    grid-template-columns: 1fr 200px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-comp-card,
  .page-about .about-evo-card {
    transition: none;
  }

  .page-about .about-comp-card:hover {
    transform: none;
  }
}