/* ===================== 关于我们页面专属样式 ===================== */
.page-about {
  --page-index-width: 200px;
  background: var(--color-bg);
}

/* ---------- Hero 区域 ---------- */
.page-about .about-hero {
  padding: 28px 20px 44px;
  border-bottom: var(--border-w) solid var(--color-line);
  background:
    linear-gradient(rgba(100, 255, 218, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100, 255, 218, 0.035) 1px, transparent 1px),
    var(--color-bg);
  background-size: 32px 32px;
}

.page-about .about-hero__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-dim);
  margin-bottom: 32px;
}

.page-about .breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .breadcrumb a:hover {
  color: var(--color-text);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-hero__content {
  min-width: 0;
}

.page-about .about-hero__content h1 {
  margin: 12px 0 16px;
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 1px;
  color: var(--color-text);
}

.page-about .section__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-warning);
  text-transform: uppercase;
}

.page-about .about-hero__lead {
  margin: 0 0 24px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-dim);
}

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

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-hero__stats .data-card {
  padding: 14px;
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-line);
  box-shadow: var(--shadow-panel);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-hero__stats .data-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}

.page-about .about-hero__stats .data-card__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--color-warning);
  text-transform: uppercase;
}

.page-about .about-hero__stats .data-card__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  color: var(--color-accent);
  margin: 4px 0 2px;
}

.page-about .about-hero__stats .data-card__label {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ---------- 布局框架：左侧索引 + 右侧内容 ---------- */
.page-about .about-layout {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 36px 20px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-about .about-index {
  border: var(--border-w) solid var(--color-line);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  flex-shrink: 0;
}

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

.page-about .about-index__list li {
  border-bottom: 1px solid var(--color-line);
}

.page-about .about-index__list li:last-child {
  border-bottom: 0;
}

.page-about .about-index__list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  color: var(--color-text-dim);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 14px;
  transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.page-about .about-index__list a:hover {
  background: var(--color-accent-soft);
  color: var(--color-text);
  padding-left: 20px;
}

.page-about .about-index__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-accent);
}

.page-about .about-content {
  min-width: 0;
  flex: 1;
}

/* ---------- 章节通用 ---------- */
.page-about .chapter {
  display: flex;
  gap: 16px;
  margin-bottom: 52px;
}

.page-about .chapter:last-child {
  margin-bottom: 0;
}

.page-about .chapter__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-warning);
  line-height: 1.6;
  flex-shrink: 0;
  position: relative;
  padding-left: 12px;
}

.page-about .chapter__num::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--color-warning);
}

.page-about .chapter__body {
  flex: 1;
  min-width: 0;
}

.page-about .chapter__body h2 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 12px;
  letter-spacing: 1px;
}

.page-about .chapter__body h3 {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 8px;
}

.page-about .chapter__body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-dim);
  margin: 0 0 12px;
}

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

/* ---------- 01 品牌故事 ---------- */
.page-about .about-story__lead {
  font-size: 16px !important;
  font-weight: 600;
  color: var(--color-text) !important;
  padding-left: 14px;
  border-left: 3px solid var(--color-accent);
  margin-bottom: 16px !important;
}

/* ---------- 02 发展里程碑与时间轴 ---------- */
.page-about .about-milestones__intro {
  margin-bottom: 28px;
}

.page-about .about-timeline {
  position: relative;
  padding-left: 36px;
  margin: 8px 0 24px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: var(--border-w);
  background: var(--color-line);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 28px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 22px;
  width: 12px;
  height: 12px;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  transform: rotate(45deg);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-timeline__item:hover::before {
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(100, 255, 218, 0.15);
}

.page-about .about-timeline__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-warning);
  background: var(--color-warning-soft);
  border: 1px solid rgba(255, 107, 53, 0.3);
  padding: 2px 10px;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.page-about .about-timeline__card {
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-line);
  padding: 16px;
  box-shadow: var(--shadow-panel);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-timeline__card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}

.page-about .about-timeline__card h3 {
  margin-bottom: 6px;
}

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

/* ---------- 03 核心团队 ---------- */
.page-about .about-team__lead {
  margin-bottom: 24px;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.page-about .about-team__role {
  padding: 16px;
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-line);
  box-shadow: var(--shadow-panel);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .about-team__role:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-accent);
}

.page-about .about-team__icon {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--color-warning);
  margin-bottom: 10px;
}

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

/* ---------- 04 数据能力概览 ---------- */
.page-about .about-capacity__lead {
  margin-bottom: 20px;
}

.page-about .about-capacity__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.page-about .about-capacity__metrics .data-card {
  padding: 16px;
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-line);
  box-shadow: var(--shadow-panel);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .about-capacity__metrics .data-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-accent);
}

.page-about .about-capacity__metrics .data-card__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--color-warning);
  text-transform: uppercase;
}

.page-about .about-capacity__metrics .data-card__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--color-accent);
  margin: 6px 0 2px;
}

.page-about .about-capacity__metrics .data-card__label {
  font-size: 13px;
  color: var(--color-text-dim);
}

.page-about .about-capacity__visual {
  margin-bottom: 20px;
}

.page-about .about-capacity__note {
  padding: 18px;
  border: var(--border-w) solid var(--color-line);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.page-about .about-capacity__note h3 {
  margin-bottom: 8px;
}

.page-about .about-capacity__note p {
  margin: 0;
}

/* ---------- 05 荣誉与合作 ---------- */
.page-about .about-honor__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-honor__item {
  padding: 18px;
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-line);
  box-shadow: var(--shadow-panel);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .about-honor__item:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-accent);
}

.page-about .about-honor__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-warning);
  background: var(--color-warning-soft);
  border: 1px solid rgba(255, 107, 53, 0.3);
  padding: 4px 10px;
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.page-about .about-honor__item h3 {
  margin-bottom: 8px;
}

.page-about .about-honor__item p {
  margin: 0;
}

.page-about .about-honor__cta {
  margin-top: 32px;
  padding: 24px;
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-line);
  box-shadow: var(--shadow-panel);
  text-align: center;
}

.page-about .about-honor__cta p {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 18px;
}

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

/* ---------- 媒体框架图片 ---------- */
.page-about .media-frame {
  display: block;
  overflow: hidden;
  border: var(--border-w) solid var(--color-line);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

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

/* ---------- 交互增强：悬停与焦点 ---------- */
.page-about a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 媒体查询：平板 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 40px 32px 56px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-layout {
    padding: 44px 32px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-capacity__metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-honor__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .chapter__num {
    font-size: 24px;
    padding-left: 16px;
  }

  .page-about .about-timeline__year {
    font-size: 14px;
  }
}

/* ---------- 媒体查询：桌面 ---------- */
@media (min-width: 1080px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .about-layout {
    flex-direction: row;
    gap: 48px;
    padding: 56px 32px;
    align-items: flex-start;
  }

  .page-about .about-index {
    flex: 0 0 var(--page-index-width);
    position: sticky;
    top: 24px;
    align-self: flex-start;
    z-index: 2;
  }

  .page-about .about-content {
    flex: 1;
  }

  .page-about .chapter {
    gap: 24px;
    margin-bottom: 64px;
  }

  .page-about .chapter__body h2 {
    font-size: 28px;
  }

  .page-about .about-timeline {
    padding-left: 44px;
  }

  .page-about .about-timeline::before {
    left: 11px;
  }

  .page-about .about-timeline__item::before {
    left: -38px;
    top: 24px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-capacity__metrics {
    gap: 14px;
  }
}