/* ===== 品牌档案（/company/）页面专属样式 ===== */
.page-about {
  --about-grid: rgba(255, 255, 255, 0.04);
  --about-line: rgba(245, 240, 230, 0.15);
  --about-text: rgba(245, 240, 230, 0.75);
  --about-text-dim: rgba(245, 240, 230, 0.5);
  background-color: var(--color-bg);
  color: var(--color-paper);
  position: relative;
}

.page-about::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--about-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
}

.page-about > * {
  position: relative;
  z-index: 1;
}

.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* 面包屑 */
.page-about .breadcrumb {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 24px 20px 0;
  font-size: 13px;
  color: var(--about-text-dim);
}

.page-about .breadcrumb__link {
  color: var(--about-text);
  text-decoration: none;
  transition: color 0.25s;
}

.page-about .breadcrumb__link:hover {
  color: var(--color-accent);
}

/* 首屏品牌故事 */
.page-about .about-hero {
  padding: 48px 20px 40px;
}

.page-about .about-hero__inner {
  display: grid;
  gap: 28px;
  max-width: var(--max-w);
  margin: 0 auto;
  align-items: center;
}

.page-about .eyebrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.page-about .section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  padding: 4px 6px;
  border: 1px solid var(--color-accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  background: rgba(255, 122, 0, 0.1);
}

.page-about .about-hero__content h1 {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 14px;
  letter-spacing: -0.02em;
  color: var(--color-paper);
}

.page-about .about-hero__content .lead {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: rgba(245, 240, 230, 0.88);
  margin-bottom: 14px;
}

.page-about .about-hero__content p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-text);
  margin-bottom: 12px;
}

.page-about .about-hero__media {
  position: relative;
  border: 1px solid var(--about-line);
  background: var(--color-bg-deep);
  padding: 8px;
}

.page-about .about-hero__media img,
.page-about .about-cert__media img,
.page-about .timeline__figure img {
  display: block;
  max-width: 100%;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .media-tag {
  display: inline-block;
  margin-top: 8px;
  padding: 6px 10px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-alert);
  background: rgba(255, 230, 0, 0.08);
  border: 1px solid rgba(255, 230, 0, 0.25);
}

/* 章节索引 */
.page-about .about-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px 32px;
}

.page-about .about-index__link {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-paper);
  text-decoration: none;
  border: 1px solid var(--about-line);
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.page-about .about-index__link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(255, 122, 0, 0.08);
}

/* 发展里程碑 */
.page-about .about-milestones {
  padding: 56px 20px 48px;
  border-top: 1px solid var(--about-line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.page-about .about-milestones__header {
  max-width: 1100px;
  margin: 0 auto 40px;
}

.page-about .about-milestones__header h2,
.page-about .about-capability__header h2,
.page-about .about-cert__header h2,
.page-about .about-related h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.page-about .about-milestones__header p,
.page-about .about-capability__header p,
.page-about .about-cert__header p,
.page-about .about-related p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--about-text);
  margin: 0;
}

/* 垂直时间线 */
.page-about .timeline {
  position: relative;
  max-width: 1100px;
  margin: 0 auto 32px;
  padding-left: 24px;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-alert), transparent);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 36px 24px;
}

.page-about .timeline__dot {
  position: absolute;
  top: 4px;
  left: -24px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-accent);
  box-sizing: border-box;
}

.page-about .timeline__year {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--color-alert);
  background: rgba(255, 230, 0, 0.08);
  padding: 4px 10px;
  margin-bottom: 8px;
}

.page-about .timeline__card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--color-accent);
  padding: 16px 18px;
}

.page-about .timeline__card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--color-paper);
}

.page-about .timeline__card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-text);
  margin: 0;
}

.page-about .timeline__figure {
  max-width: 720px;
  margin: 24px auto 0;
  border: 1px solid var(--about-line);
  background: var(--color-bg-deep);
  padding: 10px;
}

.page-about .timeline__figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--about-text-dim);
}

/* 服务能力 */
.page-about .about-capability {
  padding: 56px 20px 48px;
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  background: linear-gradient(135deg, rgba(255, 122, 0, 0.1), rgba(255, 230, 0, 0.05));
}

.page-about .about-capability__header {
  max-width: var(--max-w);
  margin: 0 auto 28px;
}

.page-about .capability-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.page-about .capability-card {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-deep);
  border: 1px solid var(--about-line);
  padding: 20px 16px 16px;
  transition: border-color 0.25s, transform 0.25s;
}

.page-about .capability-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-alert));
  opacity: 0.75;
}

.page-about .capability-card:nth-child(even)::before {
  background: linear-gradient(90deg, var(--color-alert), var(--color-accent));
}

.page-about .capability-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.page-about .capability-card__value {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-accent);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.page-about .capability-card:nth-child(even) .capability-card__value {
  color: var(--color-alert);
}

.page-about .capability-card:nth-child(3) .capability-card__value,
.page-about .capability-card:nth-child(6) .capability-card__value {
  color: var(--color-warn);
}

.page-about .capability-card__label {
  display: block;
  font-size: 14px;
  line-height: 1.4;
  color: rgba(245, 240, 230, 0.65);
}

.page-about .capability-note {
  max-width: var(--max-w);
  margin: 20px auto 0;
  font-size: 13px;
  color: var(--about-text-dim);
  text-align: right;
}

/* 资质与认证 */
.page-about .about-cert {
  padding: 56px 20px 48px;
}

.page-about .about-cert__header {
  max-width: var(--max-w);
  margin: 0 auto 32px;
}

.page-about .about-cert__inner {
  display: grid;
  gap: 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  align-items: center;
}

.page-about .about-cert__media {
  position: relative;
  border: 1px solid var(--about-line);
  background: var(--color-bg-deep);
  padding: 12px;
}

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

.page-about .about-cert__content li {
  padding: 18px 16px;
  border-left: 3px solid var(--color-accent);
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-text);
}

.page-about .about-cert__content li:nth-child(2) {
  border-left-color: var(--color-alert);
}

.page-about .about-cert__content li:nth-child(3) {
  border-left-color: var(--color-success);
}

.page-about .about-cert__content li:nth-child(4) {
  border-left-color: var(--color-warn);
}

.page-about .about-cert__content strong {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--color-paper);
  margin-bottom: 4px;
}

/* 关联入口 */
.page-about .about-related {
  padding: 56px 20px 64px;
  border-top: 1px solid var(--about-line);
  text-align: center;
}

.page-about .about-related__inner {
  max-width: 720px;
  margin: 0 auto;
}

.page-about .about-related .eyebrow {
  justify-content: center;
}

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

.page-about .about-related__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* 桌面端布局 */
@media (min-width: 768px) {
  .page-about .breadcrumb {
    padding: 32px 32px 0;
  }

  .page-about .about-hero {
    padding: 72px 32px 56px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
  }

  .page-about .about-hero__content h1 {
    font-size: 46px;
  }

  .page-about .about-hero__content .lead {
    font-size: 20px;
  }

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

  .page-about .about-index {
    padding: 0 32px 48px;
  }

  .page-about .about-milestones,
  .page-about .about-capability,
  .page-about .about-cert,
  .page-about .about-related {
    padding-left: 32px;
    padding-right: 32px;
  }

  .page-about .about-milestones__header h2,
  .page-about .about-capability__header h2,
  .page-about .about-cert__header h2,
  .page-about .about-related h2 {
    font-size: 36px;
  }

  /* 桌面端时间线左右交错 */
  .page-about .timeline {
    padding-left: 0;
  }

  .page-about .timeline::before {
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
  }

  .page-about .timeline__item {
    display: grid;
    grid-template-columns: 1fr 110px 1fr;
    column-gap: 24px;
    align-items: center;
    padding: 0 0 48px;
  }

  .page-about .timeline__dot {
    position: static;
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
    width: 16px;
    height: 16px;
  }

  .page-about .timeline__year {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
    text-align: right;
    background: none;
    padding: 0 16px 0 0;
    margin-bottom: 0;
    font-size: 22px;
  }

  .page-about .timeline__card {
    grid-column: 3;
    grid-row: 1;
    padding: 20px 22px;
  }

  .page-about .timeline__item:nth-child(even) .timeline__year {
    grid-column: 3;
    justify-self: start;
    text-align: left;
    padding: 0 0 0 16px;
  }

  .page-about .timeline__item:nth-child(even) .timeline__card {
    grid-column: 1;
    justify-self: end;
    text-align: left;
    margin-right: 16px;
  }

  .page-about .timeline__figure {
    padding: 14px;
  }

  .page-about .capability-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-about .capability-card {
    padding: 28px 20px 20px;
  }

  .page-about .capability-card__value {
    font-size: 44px;
  }

  .page-about .about-cert__inner {
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
    gap: 48px;
  }

  .page-about .about-cert__media {
    padding: 16px;
  }

  .page-about .about-cert__content li {
    font-size: 15px;
    padding: 20px 18px;
  }

  .page-about .about-related {
    padding-bottom: 80px;
  }
}

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .page-about [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}