/* ===== page-products 专属样式 ===== */
.page-products {
  --page-color-bg: var(--color-bg-light);
  --page-color-surface: var(--color-surface-light);
  --page-color-border: var(--color-border);
  --page-color-primary: var(--color-primary);
  --page-color-secondary: var(--color-secondary);
  --page-color-accent: var(--color-accent);
  --page-color-text: var(--color-text-dark);
  --page-color-text-light: var(--color-text-light);
  --page-font-body: var(--font-body);
  --page-font-heading: var(--font-heading);
  --page-card-shadow: var(--shadow-card);
  --page-card-shadow-hover: var(--shadow-card-hover);
  --page-border-thick: var(--border-thick);
  --page-radius: var(--radius);

  background-color: var(--page-color-bg);
  position: relative;
  overflow-x: hidden;
}

/* 背景装饰网格 */
.page-products__grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--page-color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--page-color-border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.06;
}

/* ===== 首屏 ===== */
.page-products__hero {
  position: relative;
  z-index: 1;
  padding: 2rem 1rem 1.5rem;
  background: var(--page-color-primary);
  border-bottom: 4px solid var(--page-color-secondary);
}

.page-products__hero-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-products__hero-text .breadcrumb {
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--page-color-accent);
  opacity: 0.85;
}

.page-products__hero-text .breadcrumb a {
  color: var(--page-color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-products__hero-text .breadcrumb a:hover {
  color: var(--page-color-secondary);
}

.page-products__hero-title {
  font-family: var(--page-font-heading);
  font-size: 2.75rem;
  line-height: 1.1;
  color: var(--page-color-text-light);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.page-products__hero-accent {
  color: var(--page-color-secondary);
}

.page-products__hero-desc {
  font-family: var(--page-font-body);
  font-size: 1.125rem;
  line-height: 1.6;
  color: rgba(245, 241, 232, 0.85);
  margin: 0 0 1rem;
  max-width: 720px;
}

.page-products__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-products__hero-tags .tag {
  background: rgba(126, 200, 227, 0.18);
  color: var(--page-color-accent);
  border: 1px solid rgba(126, 200, 227, 0.35);
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-products__hero-visual {
  position: relative;
  border: var(--page-border-thick);
  border-color: rgba(212, 175, 55, 0.35);
  overflow: hidden;
}

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

.page-products__hero-grid-lines {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.page-products__hero-grid-lines span {
  width: 1px;
  height: 100%;
  background: rgba(126, 200, 227, 0.15);
}

/* ===== 标签页 ===== */
.page-products__tabs-container {
  position: relative;
  z-index: 2;
  padding-top: 1.5rem;
  padding-bottom: 0;
}

.page-products__tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  border-bottom: 2px solid var(--page-color-border);
  padding-bottom: 0.25rem;
}

.page-products__tab-btn {
  font-family: var(--page-font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.6rem 1.4rem;
  border: none;
  background: transparent;
  color: var(--page-color-text);
  opacity: 0.55;
  cursor: pointer;
  transition: opacity 0.2s, color 0.2s, background 0.2s;
  position: relative;
  letter-spacing: 0.02em;
}

.page-products__tab-btn:hover {
  opacity: 0.8;
}

.page-products__tab-btn--active {
  opacity: 1;
  color: var(--page-color-primary);
  background: rgba(11, 29, 58, 0.06);
}

.page-products__tab-btn--active::after {
  content: '';
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--page-color-secondary);
}

.page-products__tab-btn:focus-visible {
  outline: 2px solid var(--page-color-accent);
  outline-offset: 2px;
}

/* ===== 面板 ===== */
.page-products__panel {
  display: none;
  position: relative;
  z-index: 2;
  padding-top: 2rem;
  padding-bottom: 2.5rem;
}

.page-products__panel--active {
  display: block;
}

/* ===== 网格卡片区 ===== */
.page-products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-products__card {
  border: var(--page-border-thick);
  border-color: var(--page-color-border);
  box-shadow: var(--page-card-shadow);
  background: var(--page-color-surface);
  transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  position: relative;
}

.page-products__card:hover {
  box-shadow: var(--page-card-shadow-hover);
  transform: translateY(-4px);
  border-color: var(--page-color-secondary);
}

.page-products__card .card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-products__card-icon {
  font-size: 2rem;
  line-height: 1;
  display: block;
}

.page-products__card-title {
  font-family: var(--page-font-heading);
  font-size: 1.5rem;
  color: var(--page-color-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

.page-products__card-text {
  font-family: var(--page-font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--page-color-text);
  margin: 0;
}

.page-products__card-chart {
  position: relative;
  border: 1px solid var(--page-color-border);
  overflow: hidden;
  background: #fff;
  margin: 0.5rem 0;
}

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

/* 卡片内嵌图表装饰 */
.page-products__chart-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 0.5rem;
  pointer-events: none;
}

.page-products__chart-overlay span {
  flex: 1;
  height: 0;
  background: linear-gradient(to top, var(--page-color-secondary), var(--page-color-accent));
  opacity: 0.25;
  transition: height 0.3s;
}

.page-products__card:hover .page-products__chart-overlay span {
  opacity: 0.4;
}

.page-products__team-grid-lines {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  pointer-events: none;
}

.page-products__team-grid-lines span {
  border-right: 1px solid rgba(11, 29, 58, 0.08);
}

.page-products__card-chart--mobile {
  max-width: 180px;
  margin-left: auto;
  margin-right: auto;
}

.page-products__card-img--mobile {
  max-height: 400px;
  object-fit: contain;
}

.page-products__card-link {
  align-self: flex-start;
  margin-top: auto;
  font-family: var(--page-font-heading);
  font-size: 0.85rem;
  padding: 0.5rem 1.2rem;
  background: var(--page-color-primary);
  color: var(--page-color-text-light);
  border: 2px solid var(--page-color-primary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.page-products__card-link:hover {
  background: var(--page-color-secondary);
  border-color: var(--page-color-secondary);
  color: var(--page-color-primary);
}

.page-products__card-link:focus-visible {
  outline: 2px solid var(--page-color-accent);
  outline-offset: 2px;
}

/* ===== 详情卡片（单面板） ===== */
.page-products__single-section {
  padding: 0.5rem 0;
}

.page-products__detail-card {
  border: var(--page-border-thick);
  border-color: var(--page-color-border);
  box-shadow: var(--page-card-shadow);
  background: var(--page-color-surface);
}

.page-products__detail-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem;
}

.page-products__detail-body--reverse {
  flex-direction: column-reverse;
}

.page-products__detail-text {
  flex: 1;
}

.page-products__detail-title {
  font-family: var(--page-font-heading);
  font-size: 1.6rem;
  color: var(--page-color-primary);
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}

.page-products__detail-desc {
  font-family: var(--page-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--page-color-text);
  margin: 0 0 1rem;
}

.page-products__detail-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
}

.page-products__detail-list li {
  font-family: var(--page-font-body);
  font-size: 0.9rem;
  color: var(--page-color-text);
  padding-left: 1.2rem;
  position: relative;
}

.page-products__detail-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--page-color-secondary);
  font-weight: 700;
}

.page-products__detail-btn {
  font-family: var(--page-font-heading);
  font-size: 0.9rem;
  padding: 0.5rem 1.5rem;
  background: var(--page-color-primary);
  color: var(--page-color-text-light);
  border: 2px solid var(--page-color-primary);
  text-decoration: none;
  display: inline-block;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.page-products__detail-btn:hover {
  background: var(--page-color-secondary);
  border-color: var(--page-color-secondary);
  color: var(--page-color-primary);
}

.page-products__detail-btn:focus-visible {
  outline: 2px solid var(--page-color-accent);
  outline-offset: 2px;
}

.page-products__detail-visual {
  flex: 0 0 auto;
  border: 1px solid var(--page-color-border);
  overflow: hidden;
  background: #fff;
}

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

.page-products__detail-visual--mobile {
  max-width: 200px;
  margin: 0 auto;
}

.page-products__detail-img--mobile {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 500px;
}

/* ===== 信任声明 ===== */
.page-products__trust {
  position: relative;
  z-index: 2;
  padding: 2rem 1rem;
  background: var(--page-color-primary);
  border-top: 4px solid var(--page-color-secondary);
}

.page-products__trust-text {
  font-family: var(--page-font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.88);
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products__hero {
    padding: 3rem 1.5rem 2rem;
  }

  .page-products__hero-title {
    font-size: 3.5rem;
  }

  .page-products__hero-inner {
    flex-direction: row;
    align-items: center;
  }

  .page-products__hero-text {
    flex: 1 1 55%;
  }

  .page-products__hero-visual {
    flex: 1 1 40%;
    max-width: 500px;
  }

  .page-products__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__detail-body {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-products__detail-body--reverse {
    flex-direction: row-reverse;
  }

  .page-products__detail-visual {
    max-width: 320px;
  }

  .page-products__detail-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__card-chart--mobile {
    max-width: 140px;
  }

  .page-products__card-img--mobile {
    max-height: 350px;
  }
}

@media (min-width: 960px) {
  .page-products__hero {
    padding: 4rem 2rem 2.5rem;
  }

  .page-products__hero-title {
    font-size: 4rem;
  }

  .page-products__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products__grid .page-products__card--tools {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-products__grid .page-products__card--tools .card__body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: center;
  }

  .page-products__grid .page-products__card--tools .page-products__card-chart {
    margin: 0;
  }

  .page-products__tab-btn {
    font-size: 1rem;
    padding: 0.75rem 2rem;
  }

  .page-products__detail-visual {
    max-width: 400px;
  }

  .page-products__detail-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-products__hero-title {
    font-size: 4.5rem;
  }
}

/* 窄屏安全 */
@media (max-width: 380px) {
  .page-products__hero-title {
    font-size: 2rem;
  }

  .page-products__hero-desc {
    font-size: 0.95rem;
  }

  .page-products__tab-btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
  }

  .page-products__card .card__body {
    padding: 1rem;
  }

  .page-products__card-title {
    font-size: 1.25rem;
  }
}

/* 打印 */
@media print {
  .page-products__grid-bg,
  .page-products__hero-grid-lines,
  .page-products__chart-overlay,
  .page-products__team-grid-lines {
    display: none;
  }

  .page-products__hero {
    background: #fff !important;
    color: #000 !important;
    border-bottom-color: #ccc;
  }

  .page-products__hero-title,
  .page-products__hero-accent,
  .page-products__hero-desc {
    color: #000 !important;
  }

  .page-products__card,
  .page-products__detail-card {
    break-inside: avoid;
    box-shadow: none;
    border-color: #999;
  }
}
```