/* ===== 品牌故事页专属样式 ===== */
.page-about { min-height: 100vh; }

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb { padding-top: 24px; margin-bottom: 40px; }

/* ---------- Hero 区 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 64px;
  background:
    radial-gradient(1000px 360px at 85% 0%, rgba(19, 232, 210, 0.06), transparent),
    linear-gradient(125deg, rgba(22, 31, 54, 0.45) 0%, rgba(11, 17, 32, 0.2) 55%, transparent 75%),
    var(--bg-deep);
  border-bottom: 1px solid var(--border-line);
}
.page-about .about-hero::after {
  content: '';
  position: absolute;
  bottom: 36px;
  right: 6%;
  width: 220px;
  height: 44px;
  background: var(--accent-red);
  opacity: 0.75;
  clip-path: polygon(6% 0, 100% 0, 94% 100%, 0 100%);
  z-index: 1;
  pointer-events: none;
}
.page-about .about-hero .container { position: relative; z-index: 2; }
.page-about .about-hero__deco {
  position: absolute;
  top: 16px;
  right: -8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(5.5rem, 18vw, 15rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(36, 50, 86, 0.65);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.page-about .about-hero__tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border-line);
  border-left: 3px solid var(--accent-red);
  background: var(--bg-panel);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  padding: 7px 14px;
  text-transform: uppercase;
}
.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 20px 0 24px;
  max-width: 16em;
}
.page-about .about-hero__lead {
  color: var(--text-dim);
  font-size: 1.0625rem;
  line-height: 1.8;
  max-width: 36em;
}
.page-about .about-hero__links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }
.page-about .about-hero__media {
  position: relative;
  margin: 52px 0 0;
}
.page-about .about-hero__media::before {
  content: '';
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 2px solid var(--border-line);
  border-radius: 4px;
  z-index: -1;
}
.page-about .about-hero__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  object-fit: cover;
}
.page-about .about-hero__media figcaption {
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 发展历程 ---------- */
.page-about .about-journey { padding: 80px 0 72px; }
.page-about .section-title { margin-bottom: 48px; }
.page-about .about-journey__timeline {
  position: relative;
  display: grid;
  gap: 28px;
  max-width: 920px;
}
.page-about .about-journey__timeline::before {
  content: '';
  position: absolute;
  left: 27px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: repeating-linear-gradient(
    180deg,
    var(--accent-red) 0px,
    var(--accent-red) 6px,
    transparent 6px,
    transparent 12px
  );
  opacity: 0.5;
}
.page-about .journey-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
}
.page-about .journey-item__num {
  position: relative;
  z-index: 2;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-line);
  border-radius: 50%;
  background: var(--bg-deep);
  color: var(--accent-red);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.125rem;
  box-shadow: 0 0 0 4px rgba(11, 17, 32, 0.9), 0 0 24px rgba(255, 59, 76, 0.18);
}
.page-about .journey-item__content {
  position: relative;
  background: var(--bg-panel);
  border: 2px solid var(--border-line);
  border-radius: 4px;
  padding: 28px 22px 22px;
  transition: border-color 0.25s var(--ease-out), background-color 0.25s var(--ease-out);
}
.page-about .journey-item__content::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 24px;
  width: 72px;
  height: 10px;
  background: var(--accent-red);
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
}
.page-about .journey-item__content:hover {
  border-color: rgba(255, 59, 76, 0.5);
  background: #1a2540;
}
.page-about .journey-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 14px;
}
.page-about .journey-item__period {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent-gold);
  letter-spacing: 0.04em;
}
.page-about .journey-item__content h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 10px;
}
.page-about .journey-item__content p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 数据归档规模 ---------- */
.page-about .about-stats {
  padding: 80px 0;
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
  background:
    radial-gradient(900px 320px at 92% 10%, rgba(255, 197, 61, 0.05), transparent),
    var(--bg-deep);
}
.page-about .about-stats__layout {
  display: grid;
  gap: 40px;
}
.page-about .about-stats__headline .about-stats__number {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(4.4rem, 12vw, 8rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--accent-red);
}
.page-about .about-stats__caption {
  margin: 18px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
}
.page-about .about-stats__headline p:last-child {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.7;
}
.page-about .about-stats__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-content: start;
}
.page-about .stat-item {
  position: relative;
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 4px;
  padding: 20px 16px;
}
.page-about .stat-item::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-red);
}
.page-about .stat-item__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent-cyan);
}
.page-about .stat-item__label {
  display: block;
  margin-top: 8px;
  font-size: 0.875rem;
  color: var(--text-dim);
}
.page-about .about-stats__updates {
  margin-top: 40px;
  display: grid;
  gap: 20px;
  background: var(--bg-panel);
  border: 2px solid var(--border-line);
  border-left: 4px solid var(--accent-gold);
  padding: 24px;
}
.page-about .about-stats__updates div p {
  margin: 6px 0 0;
  color: var(--text-dim);
  font-size: 0.875rem;
}
.page-about .about-stats__update-time {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-gold);
}
.page-about .about-stats__media {
  margin-top: 40px;
}
.page-about .about-stats__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--border-line);
  object-fit: cover;
}
.page-about .about-stats__media figcaption {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 0.875rem;
}

/* ---------- 内容与团队 ---------- */
.page-about .about-team { padding: 80px 0 72px; }
.page-about .about-team__grid {
  display: grid;
  gap: 44px;
}
.page-about .about-team__categories h3,
.page-about .about-team__staff h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
}
.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .category-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-line);
}
.page-about .category-item:first-child { padding-top: 0; }
.page-about .category-item__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--accent-gold);
}
.page-about .category-item p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.65;
}
.page-about .team-roster__item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 8px 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-line);
}
.page-about .team-roster__item:first-child { padding-top: 0; }
.page-about .team-roster__item p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.6;
}
.page-about .team-roster__count {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-red);
  align-self: center;
}
.page-about .team-roster__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  align-self: center;
}
.page-about .about-team__total {
  margin: 20px 0 0;
  padding: 16px 18px;
  background: linear-gradient(90deg, rgba(255, 197, 61, 0.08), transparent);
  border-left: 3px solid var(--accent-gold);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--text-main);
}
.page-about .about-team__media {
  margin: 48px 0 0;
}
.page-about .about-team__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--border-line);
  object-fit: cover;
}
.page-about .about-team__media figcaption {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 0.875rem;
}

/* ---------- 原则区 ---------- */
.page-about .about-principles { padding: 80px 0; }
.page-about .about-principles__grid {
  display: grid;
  gap: 24px;
}
.page-about .principle-card {
  position: relative;
  background: var(--bg-panel);
  border: 2px solid var(--border-line);
  border-top: 3px solid var(--accent-red);
  padding: 30px 24px 28px;
}
.page-about .principle-card::after {
  content: 'PRINCIPLE';
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  opacity: 0.45;
}
.page-about .principle-card__num {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent-gold);
}
.page-about .principle-card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  margin: 14px 0 12px;
}
.page-about .principle-card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ---------- CTA 区 ---------- */
.page-about .about-cta {
  padding: 80px 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-line);
}
.page-about .about-cta__eyebrow {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.15;
  max-width: 14em;
  margin: 0 0 28px;
}
.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ---------- 平板端 ---------- */
@media (min-width: 768px) {
  .page-about .journey-item {
    grid-template-columns: 72px 1fr;
    gap: 20px;
  }
  .page-about .about-journey__timeline {
    gap: 36px;
  }
  .page-about .about-stats__updates {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .page-about .category-item {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
  }
  .page-about .category-item__label {
    min-width: 110px;
  }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 960px) {
  .page-about .about-hero { padding: 64px 0 96px; }
  .page-about .about-hero__inner {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: center;
  }
  .page-about .about-hero__media { margin: 0; }
  .page-about .about-stats__layout {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
  }
  .page-about .about-stats__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-team__grid {
    grid-template-columns: 6fr 6fr;
    gap: 56px;
  }
  .page-about .principle-card {
    padding: 34px 28px 30px;
  }
}

/* ---------- 宽屏调整 ---------- */
@media (min-width: 1200px) {
  .page-about .about-journey { padding: 100px 0 88px; }
  .page-about .about-stats,
  .page-about .about-team,
  .page-about .about-principles,
  .page-about .about-cta { padding: 104px 0; }
  .page-about .about-stats__layout {
    grid-template-columns: 4fr 8fr;
    gap: 72px;
  }
  .page-about .about-stats__media {
    display: grid;
    grid-template-columns: 4fr 8fr;
    align-items: center;
    gap: 32px;
  }
  .page-about .about-stats__media figcaption {
    margin: 0;
    font-size: 1rem;
  }
  .page-about .about-team {
    border-bottom: 1px solid var(--border-line);
  }
}