.page-about {
  overflow-x: hidden;
  background: var(--cream);
}

.page-about .about-hero {
  position: relative;
  background: linear-gradient(160deg, var(--green) 0%, #06291f 55%, var(--green-light) 130%);
  color: var(--white);
  padding: 72px 0 150px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -8%;
  width: 320px;
  height: 640px;
  border: 1px solid rgba(212, 175, 55, 0.16);
  transform: rotate(24deg);
  z-index: 0;
  pointer-events: none;
}

.page-about .about-hero-word {
  position: absolute;
  top: 48%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: "Archivo Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(50px, 13vw, 180px);
  color: rgba(212, 175, 55, 0.08);
  white-space: nowrap;
  letter-spacing: 0.04em;
  pointer-events: none;
  z-index: 0;
  user-select: none;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 20px;
}

.page-about .about-hero .breadcrumb-link,
.page-about .about-hero .breadcrumb-current {
  color: rgba(255, 255, 255, 0.78);
}

.page-about .about-hero .breadcrumb-link:hover {
  color: var(--gold);
}

.page-about .about-hero-kicker {
  margin: 28px 0 14px;
  font-size: 14px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
}

.page-about .about-hero-title {
  font-family: "Archivo Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(32px, 6vw, 64px);
  line-height: 1.08;
  margin: 0 0 22px;
  color: var(--white);
}

.page-about .about-hero-title span {
  display: block;
  color: var(--gold);
}

.page-about .about-hero-lead {
  max-width: 640px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 36px;
}

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

.page-about .about-hero-stat {
  border: 1px solid rgba(212, 175, 55, 0.4);
  background: rgba(212, 175, 55, 0.06);
  border-radius: var(--radius);
  padding: 14px 22px;
}

.page-about .about-hero-stat-num {
  font-family: "Archivo Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 26px;
  line-height: 1.1;
  color: var(--gold);
  display: flex;
  flex-direction: column;
}

.page-about .about-hero-stat-num small {
  font-family: "Open Sans", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  font-size: 13px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 4px;
}

.page-about .about-hero-stat-num sup,
.page-about .about-data-card .data-card-value sup,
.page-about .about-users-card sup {
  font-size: 0.55em;
  line-height: 1;
}

.page-about .about-ridge {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 72px;
  background: var(--cream);
  clip-path: polygon(0 100%, 0 65%, 16% 28%, 30% 52%, 48% 12%, 64% 44%, 82% 22%, 100% 56%, 100% 100%);
  z-index: 2;
}

.page-about .about-story {
  background: var(--cream);
  color: var(--ink);
  padding: 80px 0 64px;
}

.page-about .about-section-kicker {
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-dark);
  font-weight: 700;
  margin-bottom: 10px;
}

.page-about .about-story-title,
.page-about .about-milestones-title,
.page-about .about-data-title,
.page-about .about-users-title {
  font-family: "Archivo Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.2;
  margin: 0 0 16px;
}

.page-about .about-story-copy p,
.page-about .about-users-copy p {
  font-size: 16px;
  line-height: 1.9;
  margin: 0 0 16px;
}

.page-about .about-story-list {
  list-style: none;
  margin: 20px 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-story-list li {
  position: relative;
  padding-left: 22px;
  line-height: 1.7;
}

.page-about .about-story-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 10px;
  background: var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-about .about-story-more a {
  color: var(--green);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-story-feature {
  margin-top: 32px;
}

.page-about .about-milestones {
  position: relative;
  background: var(--green);
  color: var(--white);
  padding: 90px 0 155px;
  overflow: hidden;
}

.page-about .about-milestones::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 84px;
  background: var(--cream);
  clip-path: polygon(0 100%, 0 60%, 20% 35%, 38% 64%, 52% 20%, 70% 52%, 88% 28%, 100% 58%, 100% 100%);
  z-index: 3;
  pointer-events: none;
}

.page-about .about-milestones .about-section-kicker {
  color: var(--gold);
}

.page-about .about-milestones .about-section-copy {
  color: rgba(255, 255, 255, 0.76);
}

.page-about .about-section-head {
  position: relative;
  padding-left: 20px;
  border-left: 4px solid var(--gold);
  margin-bottom: 44px;
}

.page-about .about-section-number {
  display: block;
  font-family: "Archivo Black", "PingFang SC", sans-serif;
  font-size: 62px;
  line-height: 1;
  color: rgba(212, 175, 55, 0.2);
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.page-about .about-section-copy {
  font-size: 16px;
  line-height: 1.85;
  margin: 16px 0 0;
  max-width: 620px;
}

.page-about .about-timeline {
  position: relative;
  padding-left: 56px;
}

.page-about .about-timeline-svg {
  position: absolute;
  left: 0;
  top: 0;
  width: 60px;
  height: 100%;
  pointer-events: none;
}

.page-about .about-timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-tl-item {
  position: relative;
  padding: 0 0 52px 0;
}

.page-about .about-tl-item:last-child {
  padding-bottom: 0;
}

.page-about .about-tl-dot {
  position: absolute;
  left: -38px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(212, 175, 55, 0.22), 0 0 0 10px rgba(212, 175, 55, 0.08);
}

.page-about .about-tl-year {
  display: inline-block;
  font-family: "Archivo Black", "PingFang SC", sans-serif;
  font-size: 20px;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-about .about-tl-card {
  border: 1px solid rgba(212, 175, 55, 0.32);
  border-left-width: 4px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  padding: 16px 18px;
}

.page-about .about-tl-card h3 {
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--white);
}

.page-about .about-tl-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
}

.page-about .about-data {
  background: var(--cream);
  color: var(--ink);
  padding: 76px 0 72px;
  position: relative;
}

.page-about .about-data-layout {
  display: grid;
  gap: 28px;
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .about-data-card {
  background: var(--white);
  border: 1px solid rgba(11, 61, 46, 0.1);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: 0 6px 18px rgba(11, 61, 46, 0.06);
}

.page-about .about-data-card .data-card-value {
  font-family: "Archivo Black", "PingFang SC", sans-serif;
  font-size: 28px;
  line-height: 1.1;
  color: var(--green);
}

.page-about .about-data-card .data-card-label {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(26, 26, 26, 0.68);
}

.page-about .about-data-media {
  margin-top: 0;
}

.page-about .about-users {
  background: var(--green);
  color: var(--white);
  padding: 72px 0 56px;
}

.page-about .about-users .about-section-kicker {
  color: var(--gold);
}

.page-about .about-users-title {
  color: var(--white);
}

.page-about .about-users-grid p {
  color: rgba(255, 255, 255, 0.82);
}

.page-about .about-users-nums {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 24px 0;
}

.page-about .about-users-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: var(--radius);
  padding: 16px 8px;
  text-align: center;
  font-family: "Archivo Black", "PingFang SC", sans-serif;
  font-size: 24px;
  line-height: 1.1;
  color: var(--gold);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-users-card span {
  font-family: "Open Sans", "Source Han Sans SC", sans-serif;
  font-size: 12px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.7);
}

.page-about .about-users-media {
  margin-bottom: 28px;
}

.page-about .about-users-more {
  margin-top: 24px;
}

.page-about .about-cta {
  background: var(--green);
  padding: 0 0 88px;
}

.page-about .about-cta-box {
  position: relative;
  border: 2px solid var(--gold);
  border-radius: 18px;
  padding: 44px 24px;
  text-align: center;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.12), rgba(230, 126, 34, 0.06));
  overflow: hidden;
}

.page-about .about-cta-box::before {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(230, 126, 34, 0.2);
  border-radius: 50%;
  top: -80px;
  right: -60px;
  pointer-events: none;
}

.page-about .about-cta-box::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 200px;
  background: rgba(212, 175, 55, 0.08);
  transform: skew(-18deg);
  left: 12%;
  top: -30px;
  pointer-events: none;
}

.page-about .about-cta-box > * {
  position: relative;
  z-index: 1;
}

.page-about .about-cta-kicker {
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
  font-weight: 700;
}

.page-about .about-cta-title {
  font-family: "Archivo Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--white);
}

.page-about .about-cta-box p:not(.about-cta-kicker) {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 24px;
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.page-about .about-story-feature img,
.page-about .about-data-media img,
.page-about .about-users-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 120px 0 185px;
  }

  .page-about .about-hero-title {
    font-size: 64px;
  }

  .page-about .about-hero-lead {
    font-size: 18px;
  }

  .page-about .about-hero-stat-num {
    font-size: 30px;
  }

  .page-about .about-story {
    padding: 120px 0 96px;
  }

  .page-about .about-story-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 72px;
    align-items: center;
  }

  .page-about .about-story-feature {
    margin-top: 0;
  }

  .page-about .about-milestones {
    padding: 130px 0 175px;
  }

  .page-about .about-timeline {
    width: calc(100% - 60px);
    max-width: 900px;
  }

  .page-about .about-tl-card {
    transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
  }

  .page-about .about-tl-card:hover {
    transform: translateX(6px);
    border-color: var(--gold);
  }

  .page-about .about-data {
    padding: 110px 0 104px;
  }

  .page-about .about-data-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
  }

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

  .page-about .about-data-media {
    margin-top: 0;
  }

  .page-about .about-users {
    padding: 110px 0 96px;
  }

  .page-about .about-users-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
  }

  .page-about .about-users-media {
    margin-bottom: 0;
  }

  .page-about .about-cta-box {
    padding: 60px 64px;
  }
}