.page-about {
  --about-grid-line: rgba(255, 255, 255, 0.06);
  --about-card-radius: 4px;
  --about-line: rgba(45, 55, 72, 0.12);
  position: relative;
  background: #F5F7FA;
  overflow: hidden;
}

.page-about .breadcrumb {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 24px 0;
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(45, 55, 72, 0.65);
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(45, 55, 72, 0.3);
}

.page-about .breadcrumb-item a {
  color: rgba(45, 55, 72, 0.65);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-about .breadcrumb-item a:hover {
  color: #FF6B00;
}

.page-about .breadcrumb-item[aria-current="page"] {
  color: #0A1A2F;
  font-weight: 700;
}

/* ===================== Hero ===================== */
.page-about .about-hero {
  position: relative;
  background: #0A1A2F;
  color: #F5F7FA;
  padding: clamp(44px, 7vw, 88px) 24px 64px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(30, 111, 255, 0.22) 0%, transparent 68%);
  pointer-events: none;
}

.page-about .about-hero-grid {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.page-about .about-hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .about-hero-copy .section-label {
  margin-bottom: 18px;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: #F5F7FA;
  max-width: 700px;
}

.page-about .about-hero-lead {
  margin: 0 0 26px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.78);
  max-width: 640px;
}

.page-about .about-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

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

.page-about .about-hero-actions .btn-outline {
  color: #F5F7FA;
  border-color: rgba(245, 247, 250, 0.3);
}

.page-about .about-hero-actions .btn-outline:hover {
  border-color: #FF6B00;
  color: #FF6B00;
}

.page-about .about-hero-figure {
  margin: 0;
  border-radius: var(--about-card-radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===================== Mission ===================== */
.page-about .about-mission {
  background: #F5F7FA;
  padding: clamp(56px, 8vw, 96px) 24px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-mission-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

.page-about .about-mission-copy .section-label {
  margin-bottom: 14px;
}

.page-about .about-mission-copy h2 {
  margin: 0 0 20px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.18;
  color: #0A1A2F;
}

.page-about .about-mission-copy p {
  margin: 0 0 16px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(45, 55, 72, 0.86);
  max-width: 680px;
}

.page-about .about-mission-copy .about-mission-note {
  margin-top: 8px;
  padding: 14px 18px;
  background: rgba(255, 215, 0, 0.1);
  border-left: 3px solid #FFD700;
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(45, 55, 72, 0.75);
}

.page-about .about-mission-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-mission-point {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  align-items: start;
  padding: 20px 22px;
  background: #FFFFFF;
  border: 1px solid rgba(45, 55, 72, 0.12);
  border-radius: var(--about-card-radius);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-mission-point:hover {
  border-color: #FF6B00;
  box-shadow: 0 8px 24px rgba(10, 26, 47, 0.08);
}

.page-about .about-mission-num {
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 24px;
  font-weight: 700;
  color: #FF6B00;
  line-height: 1;
  padding-top: 4px;
}

.page-about .about-mission-point h3 {
  margin: 0 0 8px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 16px;
  font-weight: 800;
  color: #0A1A2F;
  letter-spacing: 0.02em;
}

.page-about .about-mission-point p {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(45, 55, 72, 0.72);
}

/* ===================== Metrics ===================== */
.page-about .about-metrics {
  background: #0A1A2F;
  padding: clamp(46px, 6vw, 72px) 24px;
  color: #F5F7FA;
}

.page-about .about-metrics-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 24px;
}

.page-about .about-metrics .stat {
  margin: 0;
  text-align: left;
  padding: 16px 0;
  border-top: 1px solid var(--about-grid-line);
  position: relative;
}

.page-about .about-metrics .stat::after {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 28px;
  height: 3px;
  background: #FF6B00;
}

.page-about .about-metrics .stat-value {
  margin: 0 0 8px;
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: #F5F7FA;
  letter-spacing: -0.02em;
}

.page-about .about-metrics .stat-label {
  margin: 0;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245, 247, 250, 0.5);
}

/* ===================== Timeline ===================== */
.page-about .about-timeline {
  background: #F5F7FA;
  padding: clamp(56px, 8vw, 100px) 24px 64px;
}

.page-about .about-timeline .section-head {
  max-width: 1180px;
  margin: 0 auto 48px;
}

.page-about .about-timeline .section-head .section-label {
  margin-bottom: 14px;
}

.page-about .about-timeline .section-head h2 {
  margin: 0 0 16px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.18;
  color: #0A1A2F;
}

.page-about .about-timeline .section-sub {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(45, 55, 72, 0.68);
  max-width: 620px;
}

.page-about .about-timeline-list {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  gap: 0;
}

.page-about .about-timeline-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: 28px 0;
  border-bottom: 1px solid var(--about-line);
  position: relative;
}

.page-about .about-timeline-item:first-child {
  border-top: 1px solid var(--about-line);
}

.page-about .about-timeline-axis-col {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.page-about .about-timeline-year {
  margin: 0;
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 22px;
  font-weight: 700;
  color: #FF6B00;
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-about .about-timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #0A1A2F;
  border: 2px solid #FF6B00;
  display: inline-block;
  margin-left: 4px;
}

.page-about .about-timeline-content {
  position: relative;
  padding-left: 18px;
  border-left: 2px solid rgba(10, 26, 47, 0.1);
  transition: border-color 0.25s var(--ease);
}

.page-about .about-timeline-item:hover .about-timeline-content {
  border-left-color: #FF6B00;
}

.page-about .about-timeline-order {
  display: inline-block;
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(45, 55, 72, 0.35);
  margin-bottom: 8px;
}

.page-about .about-timeline-content h3 {
  margin: 0 0 10px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 20px;
  font-weight: 850;
  color: #0A1A2F;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-about .about-timeline-content p {
  margin: 0 0 14px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(45, 55, 72, 0.78);
  max-width: 720px;
}

.page-about .about-timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 4px;
}

.page-about .about-growth-figure {
  max-width: 880px;
  margin: 48px auto 0;
  text-align: center;
}

.page-about .about-growth-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--about-card-radius);
  box-shadow: 0 14px 44px rgba(10, 26, 47, 0.14);
}

.page-about .about-growth-figure figcaption {
  margin-top: 14px;
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 13px;
  color: rgba(45, 55, 72, 0.58);
  letter-spacing: 0.02em;
}

/* ===================== Credentials ===================== */
.page-about .about-credentials {
  background: #0A1A2F;
  color: #F5F7FA;
  padding: clamp(56px, 8vw, 96px) 24px;
  position: relative;
  overflow: hidden;
}

.page-about .about-credentials::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.page-about .about-credentials .section-head {
  max-width: 1180px;
  margin: 0 auto 44px;
  position: relative;
}

.page-about .about-credentials .section-head .section-label {
  margin-bottom: 14px;
}

.page-about .about-credentials .section-head h2 {
  margin: 0 0 14px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.18;
  color: #F5F7FA;
}

.page-about .about-credentials .section-head .section-sub {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(245, 247, 250, 0.62);
  max-width: 620px;
}

.page-about .about-credentials-grid {
  max-width: 1180px;
  margin: 0 auto 52px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  position: relative;
}

.page-about .about-credential-card {
  background: #0D2038;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--about-card-radius);
  padding: 28px 24px;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-about .about-credential-card:hover {
  border-color: rgba(255, 107, 0, 0.7);
  background: #10283F;
}

.page-about .about-credential-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.page-about .about-credential-icon svg {
  width: 32px;
  height: 32px;
}

.page-about .about-credential-card h3 {
  margin: 0 0 12px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
  color: #F5F7FA;
}

.page-about .about-credential-card p {
  margin: 0 0 16px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 247, 250, 0.7);
}

.page-about .about-credential-card .tag {
  margin: 0;
}

.page-about .about-credential-note {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  position: relative;
  background: #0D2038;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--about-card-radius);
  padding: 28px;
}

.page-about .about-credential-figure {
  margin: 0;
}

.page-about .about-credential-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--about-card-radius);
}

.page-about .about-credential-note-copy {
  color: #F5F7FA;
}

.page-about .about-credential-note-copy h3 {
  margin: 0 0 18px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 22px;
  font-weight: 850;
  color: #F5F7FA;
}

.page-about .about-credential-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-credential-list li {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  align-items: baseline;
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.72);
}

.page-about .about-credential-list li span {
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #FFD700;
  white-space: nowrap;
}

.page-about .about-credential-note-copy .btn-outline {
  color: #F5F7FA;
  border-color: rgba(255, 255, 255, 0.3);
}

.page-about .about-credential-note-copy .btn-outline:hover {
  border-color: #FF6B00;
  color: #FF6B00;
}

/* ===================== Partners ===================== */
.page-about .about-partners {
  background: #F5F7FA;
  padding: clamp(56px, 8vw, 96px) 24px;
}

.page-about .about-partners .section-head {
  max-width: 1180px;
  margin: 0 auto 48px;
}

.page-about .about-partners .section-head .section-label {
  margin-bottom: 14px;
}

.page-about .about-partners .section-head h2 {
  margin: 0 0 16px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.18;
  color: #0A1A2F;
}

.page-about .about-partners .section-head .section-sub {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(45, 55, 72, 0.68);
  max-width: 680px;
}

.page-about .about-partners-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-partner-card {
  background: #FFFFFF;
  border: 1px solid rgba(45, 55, 72, 0.1);
  border-radius: var(--about-card-radius);
  padding: 28px 24px;
  position: relative;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-partner-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #FF6B00;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}

.page-about .about-partner-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 0, 0.4);
  box-shadow: 0 12px 32px rgba(10, 26, 47, 0.1);
}

.page-about .about-partner-card:hover::before {
  opacity: 1;
}

.page-about .about-partner-index {
  display: inline-block;
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #FF6B00;
  margin-bottom: 14px;
  padding: 4px 12px;
  border: 1px solid rgba(255, 107, 0, 0.3);
  border-radius: 0;
}

.page-about .about-partner-card h3 {
  margin: 0 0 10px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
  color: #0A1A2F;
}

.page-about .about-partner-card p {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(45, 55, 72, 0.74);
}

/* ===================== CTA ===================== */
.page-about .about-cta {
  background: #0A1A2F;
  color: #F5F7FA;
  padding: clamp(48px, 7vw, 84px) 24px;
  position: relative;
  overflow: hidden;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -60%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 107, 0, 0.2) 0%, transparent 68%);
  pointer-events: none;
}

.page-about .about-cta-copy {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto 28px;
}

.page-about .about-cta-copy .section-label {
  margin-bottom: 14px;
}

.page-about .about-cta-copy h2 {
  margin: 0 0 16px;
  font-family: Inter, "PingFang SC", sans-serif;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  line-height: 1.2;
  color: #F5F7FA;
  max-width: 680px;
}

.page-about .about-cta-copy p {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.7);
  max-width: 620px;
}

.page-about .about-cta-actions {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-cta-actions .btn-outline {
  color: #F5F7FA;
  border-color: rgba(245, 247, 250, 0.3);
}

.page-about .about-cta-actions .btn-outline:hover {
  border-color: #FFD700;
  color: #FFD700;
}

/* ===================== Responsive ===================== */
@media (min-width: 640px) {
  .page-about .about-metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-mission-points {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-credentials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-cta-copy p {
    max-width: 720px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }

  .page-about .about-mission-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 72px;
  }

  .page-about .about-timeline-item {
    grid-template-columns: 200px 1fr;
    gap: 24px;
    padding: 36px 0;
  }

  .page-about .about-timeline-axis-col {
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-start;
    gap: 10px;
    margin-bottom: 0;
    padding-right: 24px;
    border-right: 1px solid rgba(45, 55, 72, 0.14);
  }

  .page-about .about-timeline-year {
    font-size: 28px;
  }

  .page-about .about-timeline-dot {
    margin-right: -5px;
    width: 12px;
    height: 12px;
  }

  .page-about .about-timeline-content {
    padding-left: 28px;
    border-left: none;
  }

  .page-about .about-credential-note {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 44px;
    padding: 40px;
  }

  .page-about .about-timeline-list {
    gap: 0;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero {
    padding-left: 32px;
    padding-right: 32px;
  }

  .page-about .about-mission-grid {
    gap: 88px;
  }

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