/* ===== 品牌故事专属 CSS ===== */
.page-about {
  --about-hero-bg: #121212;
  --about-gold-line: #F4A261;
  --about-card-bg: #1D3557;
  --about-card-text: #F1FAEE;
  --about-timeline-accent: #E63946;
  --about-capability-bg: rgba(29, 53, 87, 0.45);
  --about-radius-card: 16px;
  --about-radius-pill: 9999px;
  display: flow-root;
  padding: 0;
  color: #F1FAEE;
  background: var(--about-hero-bg);
}

/* 面包屑适配暗色背景 */
.page-about .breadcrumb {
  padding: 1.25rem 1rem 0;
  max-width: 1200px;
  margin-inline: auto;
  color: #8a9bb5;
  font-size: 0.875rem;
}
.page-about .breadcrumb a {
  color: #F4A261;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-about .breadcrumb a:hover {
  color: #E63946;
}
.page-about .breadcrumb [aria-current="page"] {
  color: #F1FAEE;
  font-weight: 600;
}

/* 首屏区域——非对称斜切分割 */
.page-about .about-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1rem 3.5rem;
  text-align: center;
  overflow: hidden;
}
.page-about .about-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(135deg, #E63946, #F4A261, #1D3557);
  clip-path: polygon(0 0, 100% 0, 95% 100%, 0% 100%);
}
.page-about .about-hero__figure {
  margin: 0 0 1.25rem;
}
.page-about .about-hero__emblem {
  display: block;
  width: 120px;
  height: auto;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 0 3px #F4A261, 0 8px 30px rgba(230, 57, 70, 0.35);
  transition: box-shadow 0.3s ease;
}
.page-about .about-hero__emblem:hover {
  box-shadow: 0 0 0 3px #F4A261, 0 0 0 7px rgba(244, 162, 97, 0.3), 0 12px 40px rgba(230, 57, 70, 0.5);
}
.page-about .about-hero__heading {
  font-size: clamp(1.75rem, 6vw, 3.25rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.5rem;
  color: #F1FAEE;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}
.page-about .about-hero__heading::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 0;
  bottom: 0;
  width: 6px;
  background: #E63946;
  transform: skewX(-12deg);
  border-radius: 2px;
}
.page-about .about-hero__subtitle {
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
  color: #b8c6db;
  line-height: 1.6;
}

/* 通用章节标题 */
.page-about .section-heading {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 1.5rem;
  color: #F1FAEE;
  position: relative;
  display: inline-block;
}
.page-about .section-heading::after {
  content: '';
  display: block;
  width: 60%;
  height: 4px;
  background: var(--about-gold-line);
  margin-top: 0.35rem;
  border-radius: var(--radius-pill);
}

/* 我们的专注——高密度卡片网格 */
.page-about .about-focus {
  padding: 3rem 1rem;
  max-width: 1200px;
  margin-inline: auto;
}
.page-about .focus-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.page-about .focus-card {
  background: var(--about-card-bg);
  border-radius: var(--about-radius-card);
  padding: 1.5rem 1.25rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.page-about .focus-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}
.page-about .focus-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: #E63946;
  border-radius: 0 4px 4px 0;
}
.page-about .focus-card__icon {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 900;
  color: #F4A261;
  margin-bottom: 0.5rem;
  background: rgba(244, 162, 97, 0.12);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
}
.page-about .focus-card__heading {
  font-size: 1.125rem;
  font-weight: 800;
  margin: 0 0 0.5rem;
  color: #F1FAEE;
}
.page-about .focus-card__text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #b8c6db;
  margin: 0;
}

/* 发展轨迹——右侧纵向时间线 */
.page-about .about-timeline {
  padding: 3rem 1rem;
  max-width: 1200px;
  margin-inline: auto;
  position: relative;
}
.page-about .timeline-rail {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  padding-left: 1.5rem;
}
.page-about .timeline-rail::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #E63946, #F4A261, #1D3557);
  border-radius: var(--radius-pill);
}
.page-about .timeline-milestone {
  position: relative;
  background: var(--about-capability-bg);
  border-radius: var(--about-radius-card);
  padding: 1.25rem 1.25rem 1.25rem 2rem;
  backdrop-filter: blur(4px);
  transition: background 0.3s ease;
}
.page-about .timeline-milestone::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 1.5rem;
  width: 18px;
  height: 18px;
  background: var(--about-timeline-accent);
  border: 3px solid #121212;
  border-radius: 50%;
  box-shadow: 0 0 0 2px #F4A261;
}
.page-about .timeline-milestone__time {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #F4A261;
  background: rgba(244, 162, 97, 0.12);
  padding: 0.15rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.5rem;
}
.page-about .timeline-milestone__title {
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0 0 0.35rem;
  color: #F1FAEE;
}
.page-about .timeline-milestone__desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #b8c6db;
  margin: 0 0 0.5rem;
}
.page-about .timeline-milestone__toggle {
  font-size: 0.8rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid #E63946;
  color: #F1FAEE;
  padding: 0.3rem 0.9rem;
  border-radius: var(--about-radius-pill);
  cursor: pointer;
  transition: background 0.25s, color 0.25s;
}
.page-about .timeline-milestone__toggle:hover,
.page-about .timeline-milestone__toggle:focus-visible {
  background: #E63946;
  color: #fff;
}
.page-about .timeline-milestone__detail {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(244, 162, 97, 0.25);
}
.page-about .timeline-milestone__detail ul {
  margin: 0;
  padding-left: 1.25rem;
  color: #b8c6db;
  font-size: 0.9rem;
  line-height: 1.7;
}
.page-about .timeline-milestone__detail li::marker {
  color: #E63946;
}

/* 核心能力——图文结合布局 */
.page-about .about-capability {
  padding: 3rem 1rem;
  max-width: 1200px;
  margin-inline: auto;
}
.page-about .capability-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-about .capability-figure {
  margin: 0;
  border-radius: var(--about-radius-card);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.page-about .capability-figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 400/250;
  object-fit: cover;
}
.page-about .capability-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.page-about .capability-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--about-capability-bg);
  padding: 1rem 1rem 1rem 1.25rem;
  border-radius: var(--about-radius-card);
  backdrop-filter: blur(4px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: default;
}
.page-about .capability-item[data-hover-zoom]:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 28px rgba(230, 57, 70, 0.25);
}
.page-about .capability-item__icon {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(29, 53, 87, 0.5);
  border-radius: 50%;
  padding: 0.25rem;
}
.page-about .capability-item__icon svg {
  display: block;
}
.page-about .capability-item__heading {
  font-size: 1rem;
  font-weight: 800;
  margin: 0 0 0.2rem;
  color: #F1FAEE;
}
.page-about .capability-item__text {
  font-size: 0.85rem;
  line-height: 1.5;
  color: #b8c6db;
  margin: 0;
}

/* 战速对比——带图像与召唤语 */
.page-about .about-contrast {
  padding: 3rem 1rem 2rem;
  max-width: 1200px;
  margin-inline: auto;
}
.page-about .contrast-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
.page-about .contrast-figure {
  margin: 0;
  border-radius: var(--about-radius-card);
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,0.3);
  width: 100%;
  max-width: 500px;
}
.page-about .contrast-figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 500/300;
  object-fit: cover;
}
.page-about .contrast-description {
  font-size: 1rem;
  line-height: 1.8;
  color: #b8c6db;
  margin: 0 0 1rem;
  max-width: 580px;
}
.page-about .contrast-wrapper .btn-prime {
  display: inline-block;
  font-weight: 700;
  font-size: 0.9rem;
  background: #E63946;
  color: #fff;
  border: none;
  padding: 0.65rem 1.5rem;
  border-radius: var(--about-radius-pill);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s, transform 0.2s;
}
.page-about .contrast-wrapper .btn-prime:hover {
  background: #A62C3B;
  transform: scale(1.04);
}

/* 底部行动入口 */
.page-about .about-cta {
  padding: 2rem 1rem 3rem;
  text-align: center;
  background: linear-gradient(135deg, #1D3557, #121212);
  margin-top: 2rem;
  box-shadow: inset 0 4px 12px rgba(0,0,0,0.4);
}
.page-about .about-cta__prompt {
  font-size: 1.1rem;
  font-weight: 700;
  color: #F4A261;
  margin: 0 0 1rem;
}
.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.page-about .about-cta__links .btn-prime {
  font-weight: 700;
  font-size: 0.9rem;
  background: #E63946;
  color: #fff;
  border: none;
  padding: 0.65rem 1.5rem;
  border-radius: var(--about-radius-pill);
  text-decoration: none;
  transition: background 0.25s, transform 0.2s;
}
.page-about .about-cta__links .btn-prime:hover {
  background: #A62C3B;
  transform: scale(1.04);
}
.page-about .about-cta__links .btn-prime--outline {
  background: transparent;
  border: 2px solid #F4A261;
  color: #F4A261;
}
.page-about .about-cta__links .btn-prime--outline:hover {
  background: #F4A261;
  color: #121212;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-about .focus-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
  .page-about .capability-layout {
    flex-direction: row;
    align-items: stretch;
  }
  .page-about .capability-figure {
    flex: 0 0 380px;
  }
  .page-about .capability-list {
    flex: 1;
  }
  .page-about .contrast-wrapper {
    flex-direction: row;
    align-items: center;
  }
  .page-about .contrast-figure {
    flex: 0 0 480px;
  }
  .page-about .timeline-milestone {
    padding: 1.5rem 1.5rem 1.5rem 2.5rem;
  }
  .page-about .about-hero {
    padding: 4rem 2rem 4rem;
  }
  .page-about .about-hero__emblem {
    width: 160px;
  }
}

@media (min-width: 1024px) {
  .page-about .capability-figure {
    flex: 0 0 440px;
  }
  .page-about .contrast-figure {
    flex: 0 0 540px;
  }
  .page-about .timeline-rail {
    padding-left: 2.5rem;
  }
}