.page-products {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  padding: 0;
  margin: 0;
  --products-card-radius: 20px;
  --products-grid-gap: 1.5rem;
  --products-section-spacing: 3rem;
}

/* 面包屑 */
.page-products .breadcrumb {
  width: 100%;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--color-text, #E0E0E0);
  list-style: none;
}

.page-products .breadcrumb__item a {
  color: var(--color-link, #9B59B6);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-products .breadcrumb__item a:hover,
.page-products .breadcrumb__item a:focus-visible {
  color: var(--color-accent, #D4AF37);
  outline: 2px solid var(--color-accent, #D4AF37);
  outline-offset: 2px;
  border-radius: 4px;
}

.page-products .breadcrumb__item--current {
  color: var(--color-accent, #D4AF37);
  font-weight: 600;
}

.page-products .breadcrumb__sep {
  color: var(--color-text, #E0E0E0);
  opacity: 0.6;
  margin: 0 0.2rem;
}

/* 首屏英雄区 */
.page-products__hero {
  position: relative;
  width: 100%;
  padding: 2rem 0 3rem;
  overflow: hidden;
}

.page-products__hero-shape {
  position: absolute;
  top: -30%;
  right: -15%;
  width: 60%;
  height: 140%;
  background: linear-gradient(135deg, var(--color-bg-card, #5A2D8C) 0%, var(--color-bg-overlay, #1A0A2E) 80%);
  border-radius: 50% 0 50% 50%;
  transform: rotate(12deg);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.page-products__hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.8rem;
}

.page-products__hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text-white, #FFFFFF);
  margin: 0;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 12px rgba(212, 175, 55, 0.15);
  background: linear-gradient(90deg, var(--color-text-white, #FFFFFF) 0%, var(--color-accent, #D4AF37) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-products__hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text, #E0E0E0);
  margin: 0;
  max-width: 600px;
  line-height: 1.6;
}

.page-products__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.page-products .tag {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  background: var(--color-bg-card, #5A2D8C);
  color: var(--color-text-white, #FFFFFF);
  border-radius: var(--radius-capsule, 9999px);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--color-border, #D4AF37);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}

.page-products .tag--accent {
  background: var(--color-accent, #D4AF37);
  color: var(--color-bg-main, #0B0C10);
  border-color: var(--color-accent, #D4AF37);
}

.page-products .tag:hover {
  transform: translateY(-1px);
  border-color: var(--color-accent-dark, #B8860B);
}

/* 通用章节标题 */
.page-products__section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-white, #FFFFFF);
  margin: 0 0 0.5rem;
  letter-spacing: 0.01em;
  position: relative;
  display: inline-block;
}

.page-products__section-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--color-accent, #D4AF37);
  border-radius: 2px;
}

.page-products__section-desc {
  font-size: 1rem;
  color: var(--color-text, #E0E0E0);
  margin: 0 0 2rem;
  max-width: 700px;
  line-height: 1.7;
}

/* 服务概览网格 */
.page-products__overview {
  width: 100%;
  padding: var(--products-section-spacing, 3rem) 0;
}

.page-products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--products-grid-gap, 1.5rem);
}

/* 卡片基础 */
.page-products__card {
  display: flex;
  flex-direction: column;
  border-radius: var(--products-card-radius, 20px);
  background: linear-gradient(145deg, var(--color-bg-card, #5A2D8C) 0%, var(--color-bg-overlay, #1A0A2E) 100%);
  border: 1px solid rgba(212, 175, 55, 0.2);
  padding: 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.35s ease, border-color 0.3s ease;
  cursor: default;
  position: relative;
  overflow: hidden;
}

.page-products__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.page-products__card:hover::before {
  opacity: 1;
}

.page-products__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(90, 45, 140, 0.45), 0 0 0 1px var(--color-border, #D4AF37);
  border-color: var(--color-border, #D4AF37);
}

.page-products__card-img-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem 0 1rem;
}

.page-products__card-img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 16px;
  background: rgba(11, 12, 16, 0.3);
  padding: 0.6rem;
  transition: transform 0.35s ease, filter 0.3s ease;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.page-products__card:hover .page-products__card-img {
  transform: scale(1.05);
  filter: drop-shadow(0 6px 16px rgba(212, 175, 55, 0.2));
}

.page-products__card-body {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.page-products__card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-white, #FFFFFF);
  margin: 0;
  letter-spacing: 0.01em;
}

.page-products__card-text {
  font-size: 0.9375rem;
  color: var(--color-text, #E0E0E0);
  margin: 0;
  line-height: 1.6;
  flex: 1;
}

.page-products__card .btn {
  align-self: flex-start;
  margin-top: 0.4rem;
  padding: 0.5rem 1.2rem;
  background: var(--color-accent, #D4AF37);
  color: var(--color-bg-main, #0B0C10);
  border: none;
  border-radius: var(--radius-capsule, 9999px);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  line-height: 1.4;
}

.page-products__card .btn:hover,
.page-products__card .btn:focus-visible {
  background: var(--color-accent-dark, #B8860B);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(212, 175, 55, 0.3);
  outline: 2px solid var(--color-accent, #D4AF37);
  outline-offset: 2px;
}

.page-products__card-link {
  text-decoration: none;
}

/* 卡片详情手风琴 */
.page-products__card-toggle {
  background: transparent !important;
  color: var(--color-accent, #D4AF37) !important;
  border: 1px solid var(--color-accent, #D4AF37) !important;
  padding: 0.4rem 1rem !important;
}

.page-products__card-toggle:hover {
  background: var(--color-accent, #D4AF37) !important;
  color: var(--color-bg-main, #0B0C10) !important;
}

.page-products__card-toggle-icon {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 700;
  transition: transform 0.3s ease;
  line-height: 1;
}

.page-products__card-toggle[aria-expanded="true"] .page-products__card-toggle-icon {
  transform: rotate(45deg);
}

.page-products__card-detail {
  margin-top: 0.4rem;
  padding: 0.8rem 0.6rem 0.4rem;
  border-top: 1px solid rgba(212, 175, 55, 0.2);
  animation: productsFadeIn 0.3s ease;
}

.page-products__card-detail[hidden] {
  display: none;
}

@keyframes productsFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-products__detail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.page-products__detail-list li {
  position: relative;
  padding-left: 1.2rem;
  color: var(--color-text, #E0E0E0);
  font-size: 0.9rem;
  line-height: 1.5;
}

.page-products__detail-list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent, #D4AF37);
  font-size: 0.65rem;
}

/* 版本优化区 */
.page-products__optimize {
  width: 100%;
  padding: var(--products-section-spacing, 3rem) 0;
  background: rgba(26, 10, 46, 0.3);
  position: relative;
}

.page-products__optimize-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-products__optimize-text {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-products__optimize-list {
  list-style: none;
  margin: 0.8rem 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-products__optimize-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  color: var(--color-text, #E0E0E0);
  font-size: 1rem;
  line-height: 1.6;
}

.page-products__optimize-icon {
  color: var(--color-accent, #D4AF37);
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.page-products__optimize-item strong {
  color: var(--color-text-white, #FFFFFF);
  font-weight: 600;
}

.page-products__optimize-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.5rem;
  background: var(--color-accent, #D4AF37);
  color: var(--color-bg-main, #0B0C10);
  border: none;
  border-radius: var(--radius-capsule, 9999px);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  width: fit-content;
  margin-top: 0.8rem;
}

.page-products__optimize-btn:hover,
.page-products__optimize-btn:focus-visible {
  background: var(--color-accent-dark, #B8860B);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(212, 175, 55, 0.25);
  outline: 2px solid var(--color-accent, #D4AF37);
  outline-offset: 2px;
}

.page-products__optimize-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-products__optimize-img {
  width: 100%;
  max-width: 560px;
  height: auto;
  max-height: 400px;
  object-fit: contain;
  border-radius: var(--radius-card, 16px);
  background: rgba(11, 12, 16, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.page-products__optimize-img:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
}

/* 平台特性 */
.page-products__features {
  width: 100%;
  padding: var(--products-section-spacing, 3rem) 0;
}

.page-products__features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

.page-products__features-card {
  padding: 1.5rem;
  border-radius: var(--radius-card, 16px);
  background: linear-gradient(145deg, var(--color-bg-card, #5A2D8C) 0%, rgba(26, 10, 46, 0.6) 100%);
  border: 1px solid rgba(212, 175, 55, 0.15);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-products__features-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border, #D4AF37);
  box-shadow: 0 12px 32px rgba(90, 45, 140, 0.3);
}

.page-products__features-card-icon {
  font-size: 2rem;
  margin-bottom: 0.6rem;
  color: var(--color-accent, #D4AF37);
  filter: drop-shadow(0 2px 8px rgba(212, 175, 55, 0.2));
}

.page-products__features-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-white, #FFFFFF);
  margin: 0 0 0.3rem;
}

.page-products__features-card-text {
  font-size: 0.9375rem;
  color: var(--color-text, #E0E0E0);
  margin: 0;
  line-height: 1.6;
}

.page-products__features-card--device {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.page-products__features-device-wrap {
  width: 100%;
  max-width: 240px;
  margin: 0 auto;
}

.page-products__features-device-img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: transform 0.35s ease;
}

.page-products__features-device-img:hover {
  transform: scale(1.03);
}

/* 背景装饰 */
.page-products__bg-decor {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
  opacity: 0.08;
}

.page-products__bg-decor-img {
  width: 100%;
  height: auto;
  min-height: 400px;
  object-fit: cover;
}

/* ===== 平板及以上 ===== */
@media (min-width: 640px) {
  .page-products .breadcrumb {
    padding: 1rem 2rem 0;
  }

  .page-products__hero {
    padding: 3rem 0 4rem;
  }

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

  .page-products__hero-shape {
    width: 50%;
    right: -10%;
  }

  .page-products__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-products__card--vendor {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
  }

  .page-products__card--brand {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
  }

  .page-products__card--mobile {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
  }

  .page-products__card--changelog {
    grid-column: 1 / 3;
    grid-row: 3 / 4;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .page-products__card--changelog .page-products__card-img-wrap {
    padding: 0 1rem 0 0;
  }

  .page-products__optimize-inner {
    grid-template-columns: 1fr 1fr;
  }

  .page-products__features-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-products__features-card--device {
    grid-column: 1 / -1;
  }
}

/* ===== 桌面 ===== */
@media (min-width: 1024px) {
  .page-products .breadcrumb {
    padding: 1.2rem 0 0;
  }

  .page-products__hero {
    padding: 4rem 0 5rem;
  }

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

  .page-products__hero-shape {
    width: 40%;
    right: -5%;
    top: -20%;
  }

  .page-products__section-title {
    font-size: 2.25rem;
  }

  .page-products__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .page-products__card--vendor {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
  }

  .page-products__card--brand {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
  }

  .page-products__card--mobile {
    grid-column: 3 / 4;
    grid-row: 1 / 2;
  }

  .page-products__card--changelog {
    grid-column: 2 / 4;
    grid-row: 2 / 3;
    grid-template-columns: auto 1fr;
  }

  .page-products__features-grid {
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }

  .page-products__features-card--device {
    grid-column: 4 / 5;
    grid-row: 1 / 3;
  }

  .page-products__features-card:nth-child(1) {
    grid-column: 1 / 2;
  }

  .page-products__features-card:nth-child(2) {
    grid-column: 2 / 3;
  }

  .page-products__features-card:nth-child(3) {
    grid-column: 3 / 4;
  }

  .page-products__card-img {
    width: 140px;
    height: 140px;
  }

  .page-products__optimize {
    --products-section-spacing: 4rem;
  }

  .page-products__features {
    --products-section-spacing: 4rem;
  }

  .page-products__overview {
    --products-section-spacing: 4rem;
  }
}

/* ===== 超宽屏 ===== */
@media (min-width: 1400px) {
  .page-products__grid {
    gap: 2rem;
  }

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

  .page-products__card {
    padding: 2rem;
  }

  .page-products__card-img {
    width: 160px;
    height: 160px;
  }
}
```