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

/* 面包屑 */
.page-about .about-crumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 24px 0;
}

/* Hero 首屏主视觉 */
.page-about .about-hero {
  position: relative;
  padding: 40px 24px 64px;
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -15%;
  width: 62%;
  height: 120%;
  background: linear-gradient(135deg, transparent 28%, rgba(192, 16, 46, 0.34) 100%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}
.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 36px;
  max-width: var(--container);
  margin: 0 auto;
}
.page-about .about-hero h1 {
  font-size: 30px;
  line-height: 1.28;
  letter-spacing: -0.02em;
  margin: 14px 0 12px;
}
.page-about .about-hero__lead {
  color: var(--silver);
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
  max-width: 34em;
}
.page-about .about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.page-about .about-hero__media {
  margin: 0;
}
.page-about .about-hero__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  box-shadow: 14px 16px 0 rgba(192, 16, 46, 0.16);
}

/* 左右分栏通用结构 */
.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.page-about .about-layout__side h2 {
  font-size: 26px;
  line-height: 1.3;
  margin: 10px 0 0;
}
.page-about .about-layout__main {
  min-width: 0;
}

/* 品牌理念 */
.page-about .about-philosophy {
  padding: 56px 0;
  border-top: 1px solid var(--border);
}
.page-about .about-philosophy .about-layout__main {
  border-left: 3px solid var(--red);
  padding-left: 24px;
}
.page-about .about-philosophy p {
  color: var(--silver);
  line-height: 1.85;
  margin: 0 0 18px;
  text-align: justify;
}
.page-about .about-philosophy p:last-child {
  margin-bottom: 0;
}

/* 关键数字 */
.page-about .about-numbers {
  position: relative;
  padding: 64px 24px;
  margin: 8px 0;
  background: var(--gray);
}
.page-about .about-numbers::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: linear-gradient(90deg, var(--red) 0 72%, var(--gold) 72% 100%);
}
.page-about .about-numbers__head {
  max-width: var(--container);
  margin: 0 auto 36px;
  display: grid;
  gap: 12px;
}
.page-about .about-numbers__head h2 {
  font-size: 26px;
  margin: 8px 0 0;
}
.page-about .about-numbers__desc {
  color: var(--silver);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
}
.page-about .about-numbers__grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.page-about .about-numbers__item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-top: 2px solid var(--red);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-top-color 0.22s ease, background 0.22s ease;
}
.page-about .about-numbers__item:hover {
  border-top-color: var(--gold);
  background: rgba(255, 255, 255, 0.06);
}
.page-about .about-numbers__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.1;
}
.page-about .about-numbers__label {
  font-size: 13px;
  color: var(--silver);
  letter-spacing: 0.04em;
}
.page-about .about-numbers__media {
  max-width: 520px;
  margin: 40px auto 0;
  position: relative;
}
.page-about .about-numbers__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-numbers__media::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

/* 发展时间轴 */
.page-about .about-timeline {
  padding: 64px 24px;
}
.page-about .about-timeline__head {
  max-width: var(--container);
  margin: 0 auto 44px;
}
.page-about .about-timeline__head h2 {
  font-size: 26px;
  margin: 8px 0 0;
}
.page-about .about-timeline__list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--container);
  position: relative;
}
.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--red), var(--gold) 70%, transparent);
}
.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 0 0 40px;
}
.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}
.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(214, 168, 92, 0.18);
  z-index: 1;
}
.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 800;
  color: var(--red);
  line-height: 1;
  padding-top: 18px;
  text-align: right;
}
.page-about .about-timeline__card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-right: 3px solid var(--red);
  padding: 20px;
  transition: border-right-color 0.22s ease, background 0.22s ease;
}
.page-about .about-timeline__card:hover {
  background: rgba(192, 16, 46, 0.08);
  border-right-color: var(--gold);
}
.page-about .about-timeline__card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}
.page-about .about-timeline__card p {
  color: var(--silver);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* 团队与工作方式 */
.page-about .about-team {
  padding: 56px 0 64px;
  border-top: 1px solid var(--border);
}
.page-about .about-team .about-layout__main > p {
  color: var(--silver);
  line-height: 1.8;
  margin: 0 0 24px;
}
.page-about .about-team__roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-team__roles li {
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--gold);
  padding: 18px;
}
.page-about .about-team__roles h3 {
  font-size: 16px;
  margin: 0 0 6px;
}
.page-about .about-team__roles p {
  color: var(--silver);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}
.page-about .about-team__media {
  max-width: var(--container);
  margin: 48px auto 0;
  padding: 0 24px;
}
.page-about .about-team__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  max-width: 720px;
}

/* 荣誉与合作 */
.page-about .about-honors {
  padding: 64px 24px;
  background: var(--black);
  border-top: 1px solid var(--border);
}
.page-about .about-honors__head {
  max-width: var(--container);
  margin: 0 auto 36px;
}
.page-about .about-honors__head h2 {
  font-size: 26px;
  margin: 8px 0 0;
}
.page-about .about-honors__grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-about .about-honors__card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-bottom: 3px solid var(--red);
  padding: 24px;
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.page-about .about-honors__card:hover {
  transform: translateY(-4px);
  border-bottom-color: var(--gold);
}
.page-about .about-honors__card h3 {
  font-size: 18px;
  margin: 0 0 10px;
}
.page-about .about-honors__card p {
  color: var(--silver);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* CTA 引导区 */
.page-about .about-cta {
  position: relative;
  padding: 64px 24px;
  text-align: center;
  background: linear-gradient(120deg, var(--dark-red) 0%, var(--red) 100%);
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
}
.page-about .about-cta h2 {
  font-size: 26px;
  margin: 0 0 12px;
  color: var(--cream);
}
.page-about .about-cta p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  line-height: 1.75;
  max-width: 640px;
  margin: 0 auto 28px;
}
.page-about .about-cta__actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
  align-items: center;
  margin-bottom: 28px;
}
.page-about .about-cta .btn--primary {
  background: var(--black);
  border-color: var(--black);
  color: var(--cream);
}
.page-about .about-cta .btn--ghost {
  border-color: rgba(255, 255, 255, 0.72);
  color: var(--cream);
}
.page-about .about-cta .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}
.page-about .about-cta__note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0 !important;
}

/* 平板及以上 */
@media (min-width: 640px) {
  .page-about .about-numbers__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .page-about .about-numbers__item {
    padding: 24px 20px;
  }
  .page-about .about-numbers__num {
    font-size: 36px;
  }
  .page-about .about-team__roles {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-cta__actions {
    flex-direction: row;
  }
}

/* 桌面端 */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 64px 40px 96px;
  }
  .page-about .about-hero__inner {
    display: grid;
    grid-template-columns: 5fr 7fr;
    align-items: center;
    gap: 56px;
  }
  .page-about .about-hero h1 {
    font-size: 44px;
    line-height: 1.22;
  }
  .page-about .about-hero__lead {
    font-size: 17px;
  }
  .page-about .about-hero__media img {
    transform: rotate(0.5deg);
  }
  .page-about .about-layout {
    grid-template-columns: 260px 1fr;
    gap: 64px;
  }
  .page-about .about-layout__side {
    position: sticky;
    top: 132px;
    align-self: start;
  }
  .page-about .about-layout__side h2 {
    font-size: 32px;
  }
  .page-about .about-philosophy {
    padding: 72px 0;
  }
  .page-about .about-numbers {
    padding: 80px 40px;
  }
  .page-about .about-numbers__head {
    grid-template-columns: 1fr 480px;
    align-items: end;
    gap: 40px;
    margin-bottom: 44px;
  }
  .page-about .about-numbers__head h2 {
    font-size: 32px;
  }
  .page-about .about-numbers__grid {
    gap: 24px;
  }
  .page-about .about-numbers__item {
    padding: 32px 24px;
  }
  .page-about .about-numbers__num {
    font-size: 44px;
  }
  .page-about .about-numbers__label {
    font-size: 14px;
  }
  .page-about .about-timeline {
    padding: 80px 40px;
  }
  .page-about .about-timeline__head h2 {
    font-size: 32px;
  }
  .page-about .about-timeline__list::before {
    left: 120px;
  }
  .page-about .about-timeline__item {
    grid-template-columns: 110px 1fr;
    gap: 48px;
  }
  .page-about .about-timeline__item::before {
    left: 118px;
  }
  .page-about .about-timeline__year {
    font-size: 26px;
    padding-top: 22px;
  }
  .page-about .about-timeline__card {
    padding: 24px 28px;
  }
  .page-about .about-team {
    padding: 72px 0 88px;
  }
  .page-about .about-team__roles {
    gap: 18px;
  }
  .page-about .about-team__roles li {
    padding: 22px;
  }
  .page-about .about-honors {
    padding: 80px 40px;
  }
  .page-about .about-honors__head h2 {
    font-size: 32px;
  }
  .page-about .about-honors__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .page-about .about-honors__card {
    padding: 28px;
  }
  .page-about .about-cta {
    padding: 88px 40px;
    clip-path: polygon(0 2%, 100% 0, 100% 98%, 0 100%);
  }
  .page-about .about-cta h2 {
    font-size: 32px;
  }
  .page-about .about-cta p {
    font-size: 16px;
  }
}