/* ===== 首页专属样式 .page-home ===== */
.page-home {
  --home-hero-bg: radial-gradient(ellipse at 70% 40%, rgba(230,57,70,0.08) 0%, transparent 70%),
                  radial-gradient(ellipse at 20% 80%, rgba(29,53,87,0.12) 0%, transparent 60%);
  --home-grid-color: rgba(29,53,87,0.18);
  --home-timeline-accent: #E63946;
  --home-card-elevation: 0 4px 20px rgba(0,0,0,0.35);
  --home-bridge-bar: linear-gradient(135deg, #1D3557 0%, #0D1117 100%);

  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--color-bg-dark);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  min-height: 100vh;
  padding: 0;
  margin: 0;
}

/* 面包屑 */
.page-home .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 1rem 1.5rem 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  max-width: var(--max-width-content);
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}
.page-home .breadcrumb-sep {
  color: var(--color-primary-red);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.page-home .breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}
.page-home .breadcrumb a:hover,
.page-home .breadcrumb a:focus-visible {
  color: var(--color-accent-yellow);
}
.page-home .breadcrumb-current {
  color: var(--color-accent-yellow);
  font-weight: 600;
}

/* ===== 分屏首屏 ===== */
.page-home .hero-split {
  display: flex;
  flex-direction: column;
  max-width: var(--max-width-content);
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 2rem;
  box-sizing: border-box;
  background: var(--home-hero-bg);
  gap: 2rem;
}
.page-home .hero-text {
  flex: 1 1 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}
.page-home .hero-heading {
  font-family: var(--font-headings);
  font-size: 2.6rem;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
  text-transform: uppercase;
  margin: 0;
  max-width: 12ch;
}
.page-home .hero-subtitle {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-accent-yellow);
  margin: 0;
  letter-spacing: 0.01em;
}
.page-home .hero-desc {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 48ch;
  margin: 0;
  line-height: 1.7;
}
.page-home .hero-cta {
  margin-top: 0.5rem;
}
.page-home .hero-visual {
  flex: 1 1 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-dark);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  min-height: 280px;
}
.page-home .hero-svg {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: contain;
  display: block;
}

/* ===== 时间线区域 ===== */
.page-home .timeline-section {
  max-width: var(--max-width-content);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  box-sizing: border-box;
}
.page-home .section-header {
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.75rem;
}
.page-home .section-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-3xl);
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: 0.02em;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.page-home .section-title-num {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-primary-red);
  letter-spacing: 0.1em;
}
.page-home .section-desc {
  color: var(--color-text-secondary);
  margin: 0.3rem 0 0;
  font-size: var(--font-size-md);
}

/* 时间线轨道 */
.page-home .timeline-track {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  position: relative;
  padding-left: 0;
}
.page-home .timeline-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
}
.page-home .timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 2rem;
  flex-shrink: 0;
  position: relative;
}
.page-home .timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--home-timeline-accent);
  border: 3px solid var(--color-bg-dark);
  box-shadow: 0 0 0 2px var(--home-timeline-accent);
  flex-shrink: 0;
  z-index: 2;
}
.page-home .timeline-line {
  width: 2px;
  flex: 1;
  min-height: 30px;
  background: repeating-linear-gradient(
    to bottom,
    var(--color-border) 0,
    var(--color-border) 6px,
    transparent 6px,
    transparent 12px
  );
  z-index: 1;
}
/* 时间线卡片 */
.page-home .timeline-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  width: 100%;
  box-sizing: border-box;
}
.page-home .timeline-card:hover,
.page-home .timeline-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--home-card-elevation);
  border-color: var(--color-accent-yellow);
}
.page-home .timeline-card-text {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.page-home .timeline-card-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-xl);
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin: 0;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.page-home .timeline-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.7;
}
.page-home .timeline-cta {
  align-self: flex-start;
  margin-top: 0.3rem;
}
.page-home .timeline-card-img {
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background: var(--color-bg-dark);
  border: 1px solid var(--color-border);
}
.page-home .timeline-card-img img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
}

/* 标签 */
.page-home .tag-red {
  background: var(--color-primary-red);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: inline-block;
  width: fit-content;
}

/* ===== 本地化服务桥接区 ===== */
.page-home .service-bridge {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: var(--max-width-content);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 2.5rem;
  box-sizing: border-box;
  background: var(--home-bridge-bar);
  border-radius: var(--border-radius-lg);
  position: relative;
  overflow: hidden;
}
.page-home .bridge-content {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1.5rem 0 0;
}
.page-home .bridge-text {
  color: var(--color-text-secondary);
  max-width: 56ch;
  margin: 0;
  font-size: var(--font-size-md);
  line-height: 1.7;
}
.page-home .bridge-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}
.page-home .bridge-visual {
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background: var(--color-bg-dark);
  border: 1px solid var(--color-border);
}
.page-home .bridge-visual img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
}

/* ===== 服务索引导航 ===== */
.page-home .index-navi {
  max-width: var(--max-width-content);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 3.5rem;
  box-sizing: border-box;
}
.page-home .index-navi-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.page-home .index-navi-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 1.25rem 1rem;
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed),
              border-color var(--transition-speed);
  text-align: center;
  box-shadow: none;
}
.page-home .index-navi-card:hover,
.page-home .index-navi-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--home-card-elevation);
  border-color: var(--color-accent-yellow);
}
.page-home .index-navi-icon {
  font-size: 1.6rem;
  color: var(--color-primary-red);
  transition: color var(--transition-speed);
  line-height: 1;
}
.page-home .index-navi-card:hover .index-navi-icon {
  color: var(--color-accent-yellow);
}
.page-home .index-navi-label {
  font-family: var(--font-headings);
  font-size: var(--font-size-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.2;
}
.page-home .index-navi-note {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* ===== 共用按钮变体（限定作用域） ===== */
.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.5rem;
  background: var(--color-primary-red);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 2px solid var(--color-primary-red);
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  transition: background var(--transition-speed), border-color var(--transition-speed),
              box-shadow var(--transition-speed);
  cursor: default;
  box-shadow: 0 0 0 0 rgba(230,57,70,0.4);
}
.page-home .btn:hover,
.page-home .btn:focus-visible {
  background: transparent;
  border-color: var(--color-accent-yellow);
  color: var(--color-accent-yellow);
  box-shadow: 0 0 12px rgba(244,162,97,0.35);
}
.page-home .btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.2rem;
  background: transparent;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--font-size-sm);
  letter-spacing: 0.04em;
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  transition: background var(--transition-speed), border-color var(--transition-speed),
              color var(--transition-speed);
  cursor: default;
}
.page-home .btn-outline:hover,
.page-home .btn-outline:focus-visible {
  border-color: var(--color-accent-yellow);
  color: var(--color-accent-yellow);
  background: rgba(244,162,97,0.06);
}

/* ===== 卡片通用（作用域内） ===== */
.page-home .card {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed),
              border-color var(--transition-speed);
}
.page-home .card:hover,
.page-home .card:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--home-card-elevation);
  border-color: var(--color-accent-yellow);
}

/* ===== 响应式：平板 768px+ ===== */
@media (min-width: 768px) {
  .page-home .breadcrumb {
    padding: 1.5rem 2rem 0;
  }

  /* 分屏首屏并排 */
  .page-home .hero-split {
    flex-direction: row;
    align-items: center;
    padding: 2.5rem 2rem 2rem;
    gap: 3rem;
  }
  .page-home .hero-text {
    flex: 1 1 45%;
  }
  .page-home .hero-heading {
    font-size: 3.2rem;
  }
  .page-home .hero-visual {
    flex: 1 1 55%;
    min-height: 360px;
  }
  .page-home .hero-svg {
    max-height: 440px;
  }

  /* 时间线卡片行内图文 */
  .page-home .timeline-item {
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
  }
  .page-home .timeline-marker {
    height: 100%;
    min-height: 200px;
  }
  .page-home .timeline-card {
    flex-direction: row;
    align-items: center;
    padding: 1.25rem 1.5rem;
  }
  .page-home .timeline-card-text {
    flex: 1 1 55%;
  }
  .page-home .timeline-card-img {
    flex: 1 1 40%;
    max-width: 320px;
  }
  .page-home .timeline-card-img img {
    height: auto;
  }

  /* 服务桥区并排 */
  .page-home .service-bridge {
    flex-direction: row;
    align-items: center;
    padding: 0 2rem;
    gap: 2rem;
    border-radius: var(--border-radius-lg);
  }
  .page-home .bridge-content {
    flex: 1 1 50%;
    padding: 2rem 0;
  }
  .page-home .bridge-visual {
    flex: 1 1 45%;
  }

  /* 索引网格 2 列 */
  .page-home .index-navi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
  .page-home .index-navi {
    padding: 0 2rem 4rem;
  }
  .page-home .timeline-section {
    padding: 0 2rem 3.5rem;
  }
}

/* ===== 桌面 1024px+ ===== */
@media (min-width: 1024px) {
  .page-home .breadcrumb {
    padding: 2rem 2.5rem 0;
  }
  .page-home .hero-split {
    padding: 3rem 2.5rem 2.5rem;
    gap: 4rem;
  }
  .page-home .hero-heading {
    font-size: 4rem;
  }
  .page-home .hero-subtitle {
    font-size: 1.15rem;
  }
  .page-home .hero-desc {
    font-size: 1.05rem;
  }
  .page-home .hero-visual {
    min-height: 420px;
  }
  .page-home .hero-svg {
    max-height: 480px;
  }

  /* 时间线卡片更多留白 */
  .page-home .timeline-card {
    padding: 1.5rem 2rem;
  }
  .page-home .timeline-card-title {
    font-size: var(--font-size-2xl);
  }
  .page-home .timeline-card-desc {
    font-size: var(--font-size-md);
  }

  /* 索引网格 4 列 */
  .page-home .index-navi-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
  .page-home .index-navi-card {
    padding: 1.5rem 1rem;
  }

  .page-home .timeline-section {
    padding: 0 2.5rem 4rem;
  }
  .page-home .service-bridge {
    padding: 0 2.5rem;
  }
  .page-home .index-navi {
    padding: 0 2.5rem 5rem;
  }
}

/* ===== 超大桌面 1400px+ ===== */
@media (min-width: 1400px) {
  .page-home .hero-heading {
    font-size: 4.8rem;
  }
  .page-home .hero-visual {
    min-height: 480px;
  }
  .page-home .hero-svg {
    max-height: 520px;
  }
}

/* ===== 窄屏安全 ===== */
@media (max-width: 400px) {
  .page-home {
    font-size: 15px;
  }
  .page-home .hero-heading {
    font-size: 2rem;
  }
  .page-home .hero-visual {
    min-height: 200px;
  }
  .page-home .timeline-card {
    padding: 1rem;
  }
  .page-home .index-navi-card {
    padding: 1rem 0.75rem;
  }
}

/* ===== 动效：data-reveal 渐进可见 ===== */
.page-home [data-reveal] {
  opacity: 1;
  transform: none;
}