/* ===== 页面：about ===== */
.page-about {
  --page-about-radius: 20px;
  color: var(--c-text);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

/* 品牌故事 */
.page-about__hero {
  padding: calc(var(--header-offset) + 28px) 0 52px;
  background:
    radial-gradient(circle at 88% 18%, rgba(0, 200, 83, 0.10), transparent 260px),
    linear-gradient(135deg, #F5F7FA 0%, #E9F5EF 100%);
  border-bottom: 1px solid rgba(0, 200, 83, 0.28);
}

.page-about__breadcrumbs {
  margin-bottom: 30px;
}

.page-about__coordinate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(0, 200, 83, 0.12);
  color: var(--c-primary-dark);
  border: 1px solid rgba(0, 200, 83, 0.22);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-about__hero-grid {
  display: grid;
  gap: 36px;
}

.page-about__title {
  margin: 18px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--c-navy);
  letter-spacing: -0.02em;
}

.page-about__title-accent {
  display: block;
  margin-top: 8px;
  font-size: 0.72em;
  color: var(--c-primary-dark);
  letter-spacing: 0.01em;
}

.page-about__lead {
  margin: 20px 0 0;
  max-width: 560px;
  font-size: 18px;
  line-height: 1.6;
  font-weight: 500;
  color: #3f5068;
}

.page-about__story-body {
  margin-top: 20px;
  display: grid;
  gap: 14px;
  max-width: 620px;
}

.page-about__story-body p {
  font-size: 15px;
  color: var(--c-text-secondary);
}

.page-about__story-body p:first-child {
  font-size: 16px;
  color: var(--c-text);
}

.page-about__hero-media {
  display: grid;
  gap: 12px;
}

.page-about__media-frame {
  margin: 0;
}

.page-about__hero-caption {
  font-size: 13px;
  color: var(--c-text-secondary);
  text-align: right;
}

/* 关键数字 */
.page-about__numbers {
  position: relative;
  overflow: hidden;
  background: var(--c-navy);
  color: #fff;
  padding: 60px 0;
}

.page-about__numbers::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 12%, rgba(0, 200, 83, 0.20), transparent 300px),
    radial-gradient(circle at 92% 88%, rgba(0, 230, 118, 0.12), transparent 260px);
  pointer-events: none;
}

.page-about__numbers .container {
  position: relative;
}

.page-about__section-head {
  margin-bottom: 32px;
}

.page-about__section-head h2 {
  margin: 14px 0 6px;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
}

.page-about__section-desc {
  margin: 0;
  font-size: 15px;
  color: var(--c-text-secondary);
  max-width: 720px;
}

.page-about__numbers .page-about__section-desc {
  color: #dceff2;
}

.page-about__numbers .page-about__coordinate {
  color: var(--c-score);
  background: rgba(0, 230, 118, 0.12);
  border-color: rgba(0, 230, 118, 0.30);
}

.page-about__numbers-grid {
  display: grid;
  gap: 28px;
  align-items: center;
  margin-top: 8px;
}

.page-about__numbers-chart {
  margin: 0;
}

.page-about__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.page-about__stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.2s ease, background 0.2s ease;
}

.page-about__stat:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.10);
}

.page-about__stat-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-score);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.2);
}

.page-about__stat-num {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--c-score);
  line-height: 1;
}

.page-about__stat-label {
  font-size: 13px;
  color: #d0dbe8;
}

.page-about__legend-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
}

.page-about__legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.page-about__legend .legend-item {
  background: rgba(255, 255, 255, 0.08);
  color: #e8f2f5;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
}

.page-about__trust {
  margin-top: 22px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(0, 230, 118, 0.08);
  border-left: 3px solid var(--c-score);
  padding: 14px 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #dce8ee;
  font-size: 14px;
}

.page-about__trust p {
  margin: 0;
}

.page-about__trust svg {
  width: 20px;
  height: 20px;
  color: var(--c-score);
  flex-shrink: 0;
}

/* 发展里程碑 */
.page-about__milestones {
  background: var(--c-bg-light);
  padding: 64px 0;
}

.page-about__milestones-layout {
  display: grid;
  gap: 44px;
}

.page-about__milestone-side h2 {
  margin: 14px 0 6px;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--c-navy);
  line-height: 1.15;
}

.page-about__milestone-side .page-about__section-desc {
  margin-bottom: 22px;
}

.page-about__milestone-map {
  margin: 0 0 24px;
}

.page-about__milestone-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-about__timeline-item {
  position: relative;
  padding: 0 0 44px 48px;
}

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

.page-about__timeline-item::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 64px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-primary), rgba(0, 200, 83, 0.08));
}

.page-about__timeline-item:last-child::before {
  display: none;
}

.page-about__timeline-dot {
  position: absolute;
  left: 5px;
  top: 14px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--c-primary);
  border: 4px solid #fff;
  box-shadow: 0 0 0 2px rgba(0, 200, 83, 0.35);
  z-index: 2;
}

.page-about__timeline-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--c-divider);
  box-shadow: 0 6px 18px rgba(13, 27, 42, 0.05);
  padding: 20px 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-about__timeline-item:hover .page-about__timeline-card {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(13, 27, 42, 0.10);
  border-color: rgba(0, 200, 83, 0.35);
}

.page-about__timeline-card:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 3px;
}

.page-about__timeline-year {
  display: inline-block;
  padding: 4px 12px;
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.05em;
  font-size: 15px;
}

.page-about__timeline-card h3 {
  margin: 14px 0 6px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-navy);
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 14px;
  color: var(--c-text-secondary);
}

/* 数据能力 */
.page-about__capability {
  background: linear-gradient(135deg, #0D1B2A 0%, #14304A 100%);
  padding: 64px 0;
  color: #e9f0f5;
}

.page-about__capability .page-about__coordinate {
  background: rgba(0, 230, 118, 0.12);
  border-color: rgba(0, 230, 118, 0.30);
  color: var(--c-score);
}

.page-about__capability .page-about__section-head h2 {
  color: #fff;
}

.page-about__capability .page-about__section-desc {
  color: #b7c5d4;
}

.page-about__capability-grid {
  display: grid;
  gap: 18px;
  margin-bottom: 28px;
}

.page-about__capability-card {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.page-about__capability-index {
  display: inline-block;
  min-width: 36px;
  padding: 4px 10px;
  background: rgba(0, 200, 83, 0.10);
  color: var(--c-primary-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
}

.page-about__capability-card h3 {
  margin: 16px 0 8px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--c-navy);
}

.page-about__capability-card p {
  margin: 0;
  font-size: 14px;
  color: var(--c-text-secondary);
}

.page-about__capability-note {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.page-about__capability-note p {
  margin: 0;
  color: #dfe9ef;
  font-size: 14px;
  max-width: 720px;
}

/* 资质与荣誉 */
.page-about__honors {
  background: var(--c-bg-light);
  padding: 64px 0;
}

.page-about__honors .page-about__section-head h2 {
  color: var(--c-navy);
}

.page-about__honors-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about__honor-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about__honor-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(13, 27, 42, 0.08);
}

.page-about__honor-icon {
  width: 44px;
  height: 44px;
  color: var(--c-primary-dark);
}

.page-about__honor-card h3 {
  margin: 14px 0 6px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--c-navy);
}

.page-about__honor-card p {
  margin: 0;
  font-size: 14px;
  color: var(--c-text-secondary);
}

/* 继续了解 */
.page-about__next {
  background: linear-gradient(120deg, #00843D 0%, #00C853 60%, #1DE27A 100%);
  padding: 60px 0;
  color: #fff;
}

.page-about__next .container {
  position: relative;
}

.page-about__next h2 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
}

.page-about__next-desc {
  margin: 0 0 28px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  max-width: 680px;
}

.page-about__next-grid {
  display: grid;
  gap: 14px;
}

.page-about__next-item {
  display: grid;
  gap: 4px;
  grid-template-columns: 48px 1fr;
  grid-template-rows: auto auto;
  padding: 18px 22px;
  background: rgba(255, 255, 255, 0.94);
  border-radius: var(--radius-md);
  color: var(--c-navy);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about__next-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.page-about__next-item:focus-visible {
  outline: 3px solid var(--c-navy);
  outline-offset: 3px;
}

.page-about__next-num {
  grid-row: 1 / 3;
  align-self: center;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--c-primary-dark);
}

.page-about__next-item strong {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
}

.page-about__next-item span:last-child {
  font-size: 13px;
  color: var(--c-text-secondary);
}

/* 平板及以上 */
@media (min-width: 768px) {
  .page-about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

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

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

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

/* 桌面 */
@media (min-width: 1024px) {
  .page-about__hero {
    padding-top: calc(var(--header-offset) + 44px);
  }

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

  .page-about__numbers-grid {
    grid-template-columns: 5fr 7fr;
    gap: 44px;
  }

  .page-about__milestones-layout {
    grid-template-columns: 5fr 7fr;
    gap: 60px;
  }

  .page-about__milestone-side {
    position: sticky;
    top: calc(var(--header-offset) + 32px);
    align-self: start;
  }

  .page-about__capability-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }

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