/* ============================================================
   .page-about 品牌概况页专属样式（移动端优先）
   ============================================================ */

.page-about {
  overflow-x: hidden;
}

/* ---------- 首屏：框景式品牌档案 ---------- */

.page-about .about-hero {
  padding: 24px 0 40px;
}

.page-about .about-hero .breadcrumb {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .about-hero .breadcrumb__item {
  font-size: 13px;
  color: var(--c-ink);
}

.page-about .about-hero .breadcrumb__item + .breadcrumb__item::before {
  content: "·";
  margin-right: 6px;
  color: var(--c-accent);
  font-weight: 700;
}

.page-about .about-hero .breadcrumb__item a {
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid var(--c-accent);
}

.page-about .about-hero__frame {
  position: relative;
  background: var(--c-primary);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  padding: 28px 20px 20px;
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 2px solid rgba(255, 215, 0, 0.5);
  pointer-events: none;
  z-index: 1;
}

.page-about .about-hero__meta {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
}

.page-about .about-hero__issue {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 26px;
}

.page-about .about-hero__text h1 {
  font-family: var(--font-brand);
  color: var(--c-white);
  font-size: 32px;
  line-height: 1.25;
  font-weight: 700;
  margin: 0 0 16px;
  text-shadow: 3px 3px 0 rgba(255, 106, 0, 0.35);
}

.page-about .about-hero__lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-white);
}

.page-about .about-hero__note {
  margin: 0;
  padding: 12px 16px;
  border-left: 4px solid var(--c-accent);
  background: rgba(255, 106, 0, 0.12);
  color: var(--c-white);
  font-size: 14px;
  line-height: 1.7;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.page-about .about-hero__stat {
  margin: 0;
  padding: 16px 14px;
  background: var(--c-paper);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: 4px 4px 0 rgba(255, 106, 0, 0.75);
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--font-data);
  font-size: 22px;
  line-height: 1;
  font-weight: 700;
  color: var(--c-accent);
  margin-bottom: 8px;
}

.page-about .about-hero__stat-label {
  display: block;
  font-size: 13px;
  line-height: 1.4;
  color: var(--c-ink);
}

/* ---------- 章节通用头部 ---------- */

.page-about .about-section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
}

.page-about .about-section-head__top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
}

.page-about .about-section-head .title-display {
  font-family: var(--font-display);
  font-size: 27px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
  color: var(--c-ink);
}

.page-about .about-section-head__desc {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-about .about-section-head--light .title-display {
  color: var(--c-white);
}

.page-about .about-section-head--light .about-section-head__desc {
  color: var(--c-white);
}

/* ---------- 图框组件（页面专属） ---------- */

.page-about .about-figure {
  position: relative;
  margin: 0;
  border: var(--border-width) solid var(--c-ink);
  background: var(--c-paper);
  overflow: hidden;
}

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

.page-about .about-figure .figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 12px;
  background: rgba(245, 239, 230, 0.92);
  border-top: var(--border-width) solid var(--c-ink);
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--c-ink);
  z-index: 2;
}

.page-about .about-figure--milestone {
  aspect-ratio: 3 / 1;
  margin-bottom: 34px;
}

.page-about .about-figure--map {
  aspect-ratio: 3 / 2;
}

.page-about .about-figure--team {
  aspect-ratio: 2 / 1;
}

/* ---------- 01 品牌故事 · 垂直时间轴 ---------- */

.page-about .about-timeline {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
}

.page-about .about-timeline__line {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 45px;
  width: 3px;
  border-radius: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--c-line) 0,
    var(--c-line) 8px,
    transparent 8px,
    transparent 14px
  );
  opacity: 0.7;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 90px;
  gap: 8px 18px;
  padding: 28px 0;
}

.page-about .about-timeline__item + .about-timeline__item {
  border-top: 2px solid var(--c-line);
}

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

.page-about .about-timeline__title {
  font-family: var(--font-brand);
  font-size: 18px;
  line-height: 1.35;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.page-about .about-timeline__text p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-about .about-timeline__marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 5px;
  padding-top: 2px;
}

.page-about .about-timeline__dot {
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 3px solid var(--c-ink);
  box-shadow: 0 0 0 5px rgba(255, 106, 0, 0.2);
}

.page-about .about-timeline__year {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1;
}

/* ---------- 02 数据版图 ---------- */

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

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

.page-about .about-data__card {
  margin: 0;
  padding: 18px 16px;
  background: var(--c-primary);
  border: var(--border-width) solid var(--c-accent);
  box-shadow: 4px 4px 0 rgba(255, 106, 0, 0.5);
  color: var(--c-white);
}

.page-about .about-data__num {
  display: block;
  font-family: var(--font-data);
  font-size: 26px;
  line-height: 1;
  font-weight: 700;
  color: var(--c-gold);
  margin-bottom: 10px;
}

.page-about .about-data__label {
  display: block;
  font-family: var(--font-brand);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 6px;
}

.page-about .about-data__desc {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(255, 252, 245, 0.85);
}

.page-about .about-data__map {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-about .about-data__note {
  margin-top: 30px;
  padding: 18px 20px;
  border-left: var(--border-width) solid var(--c-gold);
  background: rgba(255, 255, 255, 0.06);
}

.page-about .about-data__note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-white);
}

/* ---------- 03 资质与认证 ---------- */

.page-about .about-qual__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-qual__item {
  position: relative;
  margin: 0;
  padding: 26px 24px;
  background: var(--c-paper);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
}

.page-about .about-qual__badge {
  display: inline-block;
  padding: 5px 12px;
  margin-bottom: 14px;
  background: var(--c-primary);
  color: var(--c-white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
}

.page-about .about-qual__item h3 {
  font-family: var(--font-brand);
  font-size: 18px;
  line-height: 1.35;
  margin: 0 0 8px;
  color: var(--c-ink);
}

.page-about .about-qual__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-ink);
}

/* ---------- 04 团队与组织 ---------- */

.page-about .about-team__grid {
  display: grid;
  gap: 30px;
}

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

.page-about .about-team__item {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 2px solid rgba(255, 255, 255, 0.45);
}

.page-about .about-team__item-title {
  display: block;
  font-family: var(--font-brand);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-gold);
  margin-bottom: 4px;
}

.page-about .about-team__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-white);
}

.page-about .about-team__visual {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-about .about-team__stat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--c-accent);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
}

.page-about .about-team__stat-num {
  font-family: var(--font-data);
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .about-team__stat-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
}

/* ---------- 05 合作生态 ---------- */

.page-about .about-partners__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-partners__item {
  margin: 0;
  padding: 24px;
  background: var(--c-paper);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
}

.page-about .about-partners__index {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-accent);
  margin-bottom: 10px;
}

.page-about .about-partners__name {
  font-family: var(--font-brand);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-primary);
  margin: 0 0 8px;
}

.page-about .about-partners__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-ink);
}

/* ---------- 06 荣誉与认可 ---------- */

.page-about .about-honors__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-honors__item {
  margin: 0;
  padding: 26px 24px;
  background: var(--c-primary-dark);
  border: var(--border-width) solid var(--c-gold);
  box-shadow: 6px 6px 0 rgba(255, 215, 0, 0.25);
}

.page-about .about-honors__year {
  display: block;
  font-family: var(--font-data);
  font-size: 20px;
  line-height: 1;
  font-weight: 700;
  color: var(--c-gold);
  margin-bottom: 12px;
}

.page-about .about-honors__item h3 {
  font-family: var(--font-brand);
  font-size: 19px;
  line-height: 1.35;
  color: var(--c-white);
  margin: 0 0 10px;
}

.page-about .about-honors__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(255, 252, 245, 0.85);
}

/* ---------- 尾区 · 联系与入口 ---------- */

.page-about .about-connect {
  border-top: var(--border-width) solid var(--c-ink);
}

.page-about .about-connect__panel {
  padding: 30px 24px;
  background: var(--c-white);
  border: var(--border-width) solid var(--c-ink);
  border-top: 14px solid var(--c-accent);
  box-shadow: var(--shadow-hard);
}

.page-about .about-connect__trust {
  font-family: var(--font-brand);
  font-size: 18px;
  line-height: 1.6;
  color: var(--c-primary);
  margin: 0 0 20px;
}

.page-about .about-connect__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-about .about-connect__contact {
  margin: 0;
  padding-top: 16px;
  border-top: 2px solid var(--c-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-about .about-connect__help {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-about .about-connect__help a {
  color: var(--c-accent);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--c-accent);
}

/* ---------- 平板与桌面 ≥768px ---------- */

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 40px 0 56px;
  }

  .page-about .about-hero__frame {
    padding: 40px 36px 32px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-hero__text h1 {
    font-size: 42px;
    line-height: 1.2;
  }

  .page-about .about-hero__lead {
    font-size: 16px;
  }

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

  .page-about .about-hero__num {
    font-size: 30px;
  }

  .page-about .about-section-head {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 40px;
  }

  .page-about .about-section-head__top {
    flex-shrink: 0;
    max-width: 460px;
  }

  .page-about .about-section-head .title-display {
    font-size: 34px;
  }

  .page-about .about-section-head__desc {
    text-align: right;
    font-size: 16px;
  }

  .page-about .about-figure--milestone {
    margin-bottom: 48px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 1fr 150px;
    gap: 24px 36px;
    padding: 40px 0;
  }

  .page-about .about-timeline__line {
    right: 75px;
  }

  .page-about .about-timeline__title {
    font-size: 22px;
  }

  .page-about .about-timeline__text p {
    font-size: 15px;
  }

  .page-about .about-timeline__marker {
    justify-content: center;
  }

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

  .page-about .about-data__grid {
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: center;
  }

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

  .page-about .about-data__card {
    padding: 22px 18px;
  }

  .page-about .about-data__num {
    font-size: 32px;
  }

  .page-about .about-data__note {
    margin-top: 44px;
  }

  .page-about .about-qual__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

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

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

  .page-about .about-partners__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-about .about-honors__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 820px;
  }

  .page-about .about-connect__panel {
    padding: 40px 44px;
  }

  .page-about .about-connect__trust {
    font-size: 22px;
    text-align: center;
  }

  .page-about .about-connect__links {
    justify-content: center;
    gap: 14px;
  }

  .page-about .about-connect__contact,
  .page-about .about-connect__help {
    text-align: center;
  }
}

/* ---------- 大屏 ≥1200px ---------- */

@media (min-width: 1200px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-about .about-hero__text h1 {
    font-size: 48px;
  }

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

  .page-about .about-team__grid {
    gap: 72px;
  }

  .page-about .about-honors__grid {
    max-width: 860px;
  }
}