/* =============================================
   Page: products (方案中心)
   专属样式，全部限定在 .page-products 作用域内
   ============================================= */
.page-products {
  --products-gap: 2rem;
  --products-radius-card: 16px;
  --products-radius-sm: 8px;
  --products-strip-pad: 2.5rem 1.25rem;
  --products-max-width: 1200px;

  display: block;
  width: 100%;
  max-width: var(--products-max-width);
  margin: 0 auto;
  padding: 0 1rem 3rem;
  font-family: var(--font-body);
  color: var(--clr-text-primary);
  background-color: var(--clr-bg-light);
  line-height: var(--line-height);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  padding: 1rem 0 0.25rem;
  font-size: 0.875rem;
  color: var(--clr-text-secondary);
}

.page-products .breadcrumb a {
  color: var(--clr-secondary-blue-gray);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--clr-primary-red);
  text-decoration: underline;
}

.page-products .breadcrumb .separator {
  color: var(--clr-border-grid);
  user-select: none;
}

.page-products .breadcrumb [aria-current="page"] {
  color: var(--clr-text-primary);
  font-weight: 600;
}

/* ---------- 首屏英雄区 ---------- */
.page-products__hero {
  position: relative;
  padding: 2rem 0 2.5rem;
  margin-bottom: var(--products-gap);
  border-bottom: 2px solid var(--clr-border-grid);
  background:
    linear-gradient(135deg, var(--clr-bg-dark) 0%, rgba(29,53,87,0.92) 100%);
  border-radius: var(--products-radius-card);
  padding: 2.5rem 1.75rem;
  color: var(--clr-bg-light);
}

.page-products__hero-title {
  font-family: var(--font-heading);
  font-weight: var(--heading-weight);
  font-size: 2.4rem;
  line-height: 1.15;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  color: var(--clr-bg-light);
}

.page-products__hero-desc {
  font-size: 1.05rem;
  color: rgba(241,250,238,0.85);
  max-width: 680px;
  margin-bottom: 1.5rem;
}

.page-products__hero-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.page-products__index-item {
  font-family: var(--font-number);
  font-size: 0.9rem;
  color: var(--clr-accent-highlight);
  cursor: pointer;
  transition: color var(--transition-fast);
  position: relative;
  padding-left: 0.25rem;
}

.page-products__index-item:hover,
.page-products__index-item:focus-visible {
  color: var(--clr-primary-orange);
}

.page-products__index-item::before {
  content: "▸";
  margin-right: 0.35rem;
  color: var(--clr-primary-red);
}

/* ---------- 横向主题带（分栏） ---------- */
.page-products__strip {
  margin-bottom: var(--products-gap);
}

.page-products__strip--split {
  display: flex;
  flex-direction: column;
  gap: var(--products-gap);
  align-items: stretch;
}

/* 弧形分割装饰 */
.page-products__divider-arc {
  display: none;
  flex-shrink: 0;
  width: 80px;
  align-self: center;
  opacity: 0.5;
}

.page-products__divider-arc svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 卡片 ---------- */
.page-products__card {
  background: var(--clr-bg-light);
  border: 1px solid var(--clr-border-grid);
  border-radius: var(--products-radius-card);
  padding: 1.75rem 1.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
  transition: box-shadow var(--transition-base);
  position: relative;
}

.page-products__card:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.page-products__card .section-label {
  display: inline-block;
  font-family: var(--font-number);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-primary-red);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--clr-primary-red);
  border-radius: 20px;
  padding: 0.2rem 0.8rem;
  margin-bottom: 0.75rem;
}

.page-products__card-heading {
  font-family: var(--font-heading);
  font-weight: var(--heading-weight);
  font-size: 1.5rem;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--clr-text-primary);
}

.page-products__card-body {
  font-size: var(--body-size);
  color: var(--clr-text-primary);
}

.page-products__card-body p {
  margin: 0 0 0.85rem;
}

.page-products__card-img {
  border-radius: var(--products-radius-sm);
  margin: 1rem 0 0.75rem;
  object-fit: cover;
  width: 100%;
  height: auto;
  max-height: 300px;
}

/* ---------- 详情展开 ---------- */
.page-products__detail {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.45s ease, opacity 0.35s ease, margin 0.35s ease;
  margin: 0;
}

.page-products__detail[data-open] {
  max-height: 600px;
  opacity: 1;
  margin: 0.75rem 0 0.25rem;
}

.page-products__detail p {
  margin: 0;
  padding: 0.75rem 1rem;
  background: rgba(69,123,157,0.06);
  border-left: 3px solid var(--clr-secondary-blue-gray);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.95rem;
}

.page-products__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
  padding: 0.45rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-bg-dark);
  background: transparent;
  border: 1.5px solid var(--clr-border-grid);
  border-radius: 30px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-products__toggle:hover,
.page-products__toggle:focus-visible {
  background: var(--clr-primary-red);
  color: var(--clr-bg-light);
  border-color: var(--clr-primary-red);
}

.page-products__toggle[aria-expanded="true"]::after {
  content: "▲";
  font-size: 0.7rem;
}

.page-products__toggle[aria-expanded="false"]::after {
  content: "▼";
  font-size: 0.7rem;
}

/* ---------- 对比滑块 ---------- */
.page-products__compare {
  position: relative;
  border-radius: var(--products-radius-sm);
  overflow: hidden;
  margin: 1rem 0 0.5rem;
  border: 1px solid var(--clr-border-grid);
  background: var(--clr-bg-dark);
}

.page-products__compare-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products__compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--clr-primary-orange);
  transform: translateX(-50%);
  cursor: ew-resize;
  box-shadow: 0 0 8px rgba(244,162,97,0.5);
  z-index: 2;
}

.page-products__compare-handle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 28px;
  height: 28px;
  background: var(--clr-primary-orange);
  border-radius: 50%;
  transform: translate(-50%,-50%);
  border: 3px solid var(--clr-bg-light);
  box-shadow: 0 0 6px rgba(0,0,0,0.3);
}

.page-products__compare-label {
  position: absolute;
  bottom: 8px;
  font-family: var(--font-number);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--clr-bg-light);
  background: rgba(29,53,87,0.7);
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  z-index: 3;
  backdrop-filter: blur(2px);
}

.page-products__compare-label--left {
  left: 10px;
}

.page-products__compare-label--right {
  right: 10px;
}

/* ---------- 时间轴 ---------- */
.page-products__strip--full {
  background: var(--clr-bg-dark);
  border-radius: var(--products-radius-card);
  padding: var(--products-strip-pad);
  color: var(--clr-bg-light);
}

.page-products__strip--full .section-label {
  display: inline-block;
  font-family: var(--font-number);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-primary-orange);
  letter-spacing: 0.06em;
  border: 1px solid var(--clr-primary-orange);
  border-radius: 20px;
  padding: 0.2rem 0.8rem;
  margin-bottom: 0.75rem;
}

.page-products__strip-heading {
  font-family: var(--font-heading);
  font-weight: var(--heading-weight);
  font-size: 1.6rem;
  line-height: 1.2;
  margin: 0 0 1.25rem;
  color: var(--clr-bg-light);
}

.page-products__timeline {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-left: 1.5rem;
  border-left: 2px solid var(--clr-border-grid);
}

.page-products__timeline-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  position: relative;
}

.page-products__timeline-marker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-products__timeline-marker::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.4rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-primary-red);
  border: 2px solid var(--clr-bg-dark);
  box-shadow: 0 0 0 2px var(--clr-primary-red);
  transform: translateX(-50%);
}

.page-products__timeline-round {
  font-family: var(--font-number);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--clr-accent-highlight);
}

.page-products__timeline-content p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(241,250,238,0.85);
  line-height: 1.5;
}

.page-products__timeline-more {
  align-self: flex-start;
  margin-top: 0.75rem;
  padding: 0.5rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-bg-light);
  background: transparent;
  border: 1.5px solid var(--clr-primary-orange);
  border-radius: 30px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-products__timeline-more:hover,
.page-products__timeline-more:focus-visible {
  background: var(--clr-primary-orange);
  color: var(--clr-bg-dark);
}

.page-products__timeline-img {
  border-radius: var(--products-radius-sm);
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  margin-top: 0.5rem;
}

.page-products__timeline-footnote {
  font-size: 0.85rem;
  color: rgba(241,250,238,0.7);
  margin: 0.75rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(168,218,220,0.2);
}

/* ---------- 内联链接 ---------- */
.page-products__inline-link {
  color: var(--clr-primary-orange);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.page-products__inline-link:hover,
.page-products__inline-link:focus-visible {
  color: var(--clr-accent-highlight);
}

/* ---------- 教程网格 ---------- */
.page-products__strip--tutorial {
  padding: var(--products-strip-pad);
  background: var(--clr-bg-light);
  border: 1px solid var(--clr-border-grid);
  border-radius: var(--products-radius-card);
}

.page-products__strip--tutorial .section-label {
  display: inline-block;
  font-family: var(--font-number);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-secondary-blue-gray);
  letter-spacing: 0.06em;
  border: 1px solid var(--clr-secondary-blue-gray);
  border-radius: 20px;
  padding: 0.2rem 0.8rem;
  margin-bottom: 0.75rem;
}

.page-products__strip--tutorial .page-products__strip-heading {
  color: var(--clr-text-primary);
  margin-bottom: 1.25rem;
}

.page-products__tutorial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-products__tutorial-card {
  background: var(--clr-bg-light);
  border: 1px solid var(--clr-border-grid);
  border-radius: var(--products-radius-sm);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  transition: box-shadow var(--transition-base);
}

.page-products__tutorial-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
}

.page-products__tutorial-img {
  border-radius: var(--radius-sm);
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
}

.page-products__tutorial-desc {
  font-size: 0.9rem;
  color: var(--clr-text-primary);
  margin: 0;
  line-height: 1.5;
}

/* 内联SVG图表容器 */
.page-products__chart-box {
  background: var(--clr-bg-dark);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 160px;
}

.page-products__chart-box svg {
  display: block;
  width: 100%;
  max-width: 200px;
  height: auto;
}

/* ---------- 响应式：平板及以上 ---------- */
@media (min-width: 640px) {
  .page-products {
    padding: 0 1.5rem 3rem;
  }

  .page-products__hero {
    padding: 3rem 2.5rem;
  }

  .page-products__hero-title {
    font-size: 3rem;
  }

  .page-products__hero-desc {
    font-size: 1.1rem;
  }

  .page-products__strip--split {
    flex-direction: row;
    gap: 1.5rem;
  }

  .page-products__card {
    flex: 1;
    padding: 2rem 1.75rem;
  }

  .page-products__divider-arc {
    display: block;
    width: 60px;
    align-self: center;
  }

  .page-products__tutorial-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-products__timeline {
    padding-left: 2rem;
  }

  .page-products__timeline-marker::before {
    left: -2rem;
    width: 12px;
    height: 12px;
  }

  .page-products__strip--full {
    padding: 3rem 2.5rem;
  }
}

/* ---------- 响应式：桌面 ---------- */
@media (min-width: 1024px) {
  .page-products {
    padding: 0 2rem 4rem;
  }

  .page-products__hero {
    padding: 3.5rem 3rem;
    border-radius: 20px;
  }

  .page-products__hero-title {
    font-size: 3.4rem;
  }

  .page-products__strip--split {
    gap: 2rem;
  }

  .page-products__divider-arc {
    width: 80px;
  }

  .page-products__card {
    padding: 2.25rem 2rem;
  }

  .page-products__strip--full {
    padding: 3.5rem 3rem;
  }

  .page-products__strip-heading {
    font-size: 1.8rem;
  }

  .page-products__tutorial-grid {
    gap: 1.5rem;
  }

  .page-products__tutorial-card {
    padding: 1.5rem;
  }
}

/* ---------- 打印优化 ---------- */
@media print {
  .page-products {
    padding: 1rem;
    background: #fff;
    color: #000;
  }

  .page-products__hero {
    background: #f5f5f5 !important;
    color: #000 !important;
    border-bottom: 2px solid #ccc;
  }

  .page-products__hero-title,
  .page-products__strip-heading {
    color: #000 !important;
  }

  .page-products__toggle,
  .page-products__timeline-more {
    display: none;
  }

  .page-products__detail {
    max-height: none !important;
    opacity: 1 !important;
  }

  .page-products__card,
  .page-products__strip--full,
  .page-products__strip--tutorial {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
}