.page-products {
  --p-bg-start: #0b1a36;
  --p-bg-end: #1a2a4a;
  --p-card-bg: rgba(20, 30, 50, 0.85);
  --p-gold: #f0c040;
  --p-white: #ffffff;
  --p-neon-purple: #a020f0;
  --p-border: #2a3a5a;
  --p-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --p-radius: 8px;
  --p-border-thick: 4px;
  --p-font-heading: 'Exo 2', sans-serif;
  --p-font-body: 'Inter', sans-serif;
  --p-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --p-container-max: 1280px;
  --p-card-min-height: 420px;

  display: block;
  max-width: 100%;
  overflow-x: hidden;
  background: linear-gradient(135deg, var(--p-bg-start), var(--p-bg-end));
  color: var(--p-white);
  font-family: var(--p-font-body);
  line-height: 1.6;
  position: relative;
}

/* ── 面包屑 ── */
.page-products__breadcrumb {
  max-width: var(--p-container-max);
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.page-products__breadcrumb-link {
  color: var(--p-gold);
  text-decoration: none;
  transition: color var(--p-transition);
}
.page-products__breadcrumb-link:hover,
.page-products__breadcrumb-link:focus-visible {
  color: #ffd700;
  text-decoration: underline;
}
.page-products__breadcrumb-sep {
  color: var(--p-neon-purple);
  font-weight: 700;
}
.page-products__breadcrumb-current {
  color: var(--p-white);
  opacity: 0.8;
}

/* ── Hero 区 ── */
.page-products__hero {
  position: relative;
  width: 100%;
  max-width: var(--p-container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
  overflow: hidden;
}
.page-products__hero-bg {
  position: relative;
  width: 100%;
  height: auto;
  border-radius: var(--p-radius);
  overflow: hidden;
  box-shadow: var(--p-shadow);
  border: var(--p-border-thick) solid var(--p-border);
}
.page-products__hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  object-position: center 30%;
}
@media (min-width: 768px) {
  .page-products__hero-img {
    max-height: 500px;
  }
}
.page-products__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 26, 54, 0.85) 0%, rgba(11, 26, 54, 0.3) 60%, transparent 100%);
  pointer-events: none;
  border-radius: var(--p-radius);
}
.page-products__hero-content {
  position: relative;
  z-index: 2;
  padding: 1.25rem 1rem 2rem;
  text-align: center;
}
.page-products__hero-title {
  font-family: var(--p-font-heading);
  font-size: 2rem;
  font-weight: 800;
  font-style: italic;
  color: var(--p-gold);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 12px rgba(240, 192, 64, 0.3);
}
@media (min-width: 768px) {
  .page-products__hero-title {
    font-size: 3rem;
  }
}
.page-products__hero-desc {
  font-size: 1rem;
  color: var(--p-white);
  margin: 0 0 0.5rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
@media (min-width: 768px) {
  .page-products__hero-desc {
    font-size: 1.2rem;
  }
}
.page-products__hero-tagline {
  font-size: 0.9rem;
  color: var(--p-neon-purple);
  opacity: 0.9;
  margin: 0;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.page-products__hero-arc {
  height: 32px;
  width: 100%;
  background: transparent;
  position: relative;
  z-index: 1;
  margin-top: -1px;
}
.page-products__hero-arc::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -5%;
  width: 110%;
  height: 64px;
  background: var(--p-bg-start);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  opacity: 0.15;
  pointer-events: none;
}

/* ── 容器 ── */
.page-products__container {
  max-width: var(--p-container-max);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

/* ── Bento 网格 ── */
.page-products__bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
@media (min-width: 768px) {
  .page-products__bento {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
    margin-top: 2rem;
  }
}
@media (min-width: 1024px) {
  .page-products__bento {
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-top: 2.5rem;
  }
}

/* ── 卡片 ── */
.page-products__card {
  position: relative;
  perspective: 1200px;
  min-height: var(--p-card-min-height);
  border: var(--p-border-thick) solid var(--p-border);
  border-radius: var(--p-radius);
  background: transparent;
  box-shadow: var(--p-shadow);
  transition: box-shadow var(--p-transition), border-color var(--p-transition);
  cursor: default;
}
.page-products__card:hover,
.page-products__card:focus-within {
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  border-color: var(--p-neon-purple);
}

/* 卡片在网格中的位置 */
@media (min-width: 1024px) {
  .page-products__card--primary {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
  }
  .page-products__card--secondary {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
  }
  .page-products__card--medium:nth-child(3) {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
  }
  .page-products__card--medium:nth-child(4) {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
  }
}

/* 卡片内层（翻转容器） */
.page-products__card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: inherit;
  transition: transform var(--p-transition);
  transform-style: preserve-3d;
}
.page-products__card:hover .page-products__card-inner,
.page-products__card:focus-within .page-products__card-inner {
  transform: rotateY(6deg) scale(1.01);
}
@media (prefers-reduced-motion: reduce) {
  .page-products__card-inner {
    transition: none;
  }
  .page-products__card:hover .page-products__card-inner,
  .page-products__card:focus-within .page-products__card-inner {
    transform: none;
  }
}

/* 卡片正反面 */
.page-products__card-face {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: inherit;
  backface-visibility: hidden;
  background: var(--p-card-bg);
  border-radius: calc(var(--p-radius) - 2px);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-products__card-face--back {
  display: none;
}
@media (min-width: 768px) {
  .page-products__card:hover .page-products__card-face--back,
  .page-products__card:focus-within .page-products__card-face--back {
    display: flex;
    position: absolute;
    inset: 0;
    z-index: 2;
    background: var(--p-card-bg);
    backdrop-filter: blur(4px);
    border-radius: calc(var(--p-radius) - 2px);
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 1.5rem;
  }
  .page-products__card:hover .page-products__card-face--front,
  .page-products__card:focus-within .page-products__card-face--front {
    opacity: 0.15;
    transition: opacity 0.25s;
  }
}

/* 卡片装饰条 */
.page-products__card-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--p-neon-purple), var(--p-gold));
  border-radius: var(--p-radius) var(--p-radius) 0 0;
}

/* 卡片头部 */
.page-products__card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  position: relative;
  z-index: 1;
}
.page-products__card-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(160, 32, 240, 0.15);
  border-radius: 6px;
  border: 1px solid var(--p-neon-purple);
}
.page-products__card-title {
  font-family: var(--p-font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  font-style: italic;
  color: var(--p-gold);
  margin: 0;
  letter-spacing: 0.01em;
}
@media (min-width: 768px) {
  .page-products__card-title {
    font-size: 1.6rem;
  }
}

/* 卡片描述 */
.page-products__card-desc {
  font-size: 0.95rem;
  color: var(--p-white);
  line-height: 1.5;
  margin: 0;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

/* 卡片图片 */
.page-products__card-image-wrapper {
  position: relative;
  z-index: 1;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--p-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.page-products__card-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  transition: transform var(--p-transition);
}
.page-products__card:hover .page-products__card-img {
  transform: scale(1.03);
}

/* 卡片列表 */
.page-products__card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
}
.page-products__card-list-item {
  font-size: 0.85rem;
  color: var(--p-neon-purple);
  background: rgba(160, 32, 240, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  border: 1px solid rgba(160, 32, 240, 0.25);
  font-weight: 500;
}

/* 背面内容 */
.page-products__card-subtitle {
  font-family: var(--p-font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--p-gold);
  margin: 0 0 0.5rem;
  position: relative;
  z-index: 1;
}
.page-products__card-text {
  font-size: 0.9rem;
  color: var(--p-white);
  line-height: 1.6;
  margin: 0 0 0.75rem;
  position: relative;
  z-index: 1;
}
.page-products__card-link {
  font-size: 0.9rem;
  color: var(--p-gold);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: border-color var(--p-transition), color var(--p-transition);
  position: relative;
  z-index: 1;
  margin-top: auto;
}
.page-products__card-link:hover,
.page-products__card-link:focus-visible {
  color: #ffd700;
  border-bottom-color: var(--p-neon-purple);
}

/* ── 图表卡片额外样式 ── */
.page-products__card--chart .page-products__card-image-wrapper {
  margin-bottom: 0.5rem;
}

/* ── 数据图表（左右路射门对比） ── */
.page-products__chart {
  position: relative;
  z-index: 1;
  background: rgba(10, 20, 40, 0.5);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--p-border);
  margin-top: 0.25rem;
}
.page-products__chart-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--p-gold);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}
.page-products__chart-bars {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-products__chart-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.page-products__chart-item-label {
  font-size: 0.8rem;
  color: var(--p-white);
  min-width: 2.5rem;
  font-weight: 500;
}
.page-products__chart-track {
  flex: 1;
  height: 24px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}
.page-products__chart-fill {
  height: 100%;
  border-radius: 12px;
  transition: width var(--p-transition);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--p-white);
  min-width: 2rem;
}
.page-products__chart-fill--left {
  background: linear-gradient(90deg, var(--p-neon-purple), #c050f0);
}
.page-products__chart-fill--right {
  background: linear-gradient(90deg, var(--p-gold), #ffd84d);
}
.page-products__chart-fill::after {
  content: attr(data-value);
  opacity: 0;
  transition: opacity var(--p-transition);
}
.page-products__chart-fill:hover::after,
.page-products__chart-track:hover .page-products__chart-fill::after {
  opacity: 1;
}
.page-products__chart-note {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0.5rem 0 0;
  text-align: right;
  font-style: italic;
}

/* ── 信任声明 ── */
.page-products__trust {
  margin-top: 3rem;
  padding: 2rem 1.5rem;
  text-align: center;
  border-top: 2px solid var(--p-border);
  position: relative;
}
.page-products__trust-accent {
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--p-neon-purple);
  border-radius: 2px;
}
.page-products__trust-text {
  font-size: 1rem;
  color: var(--p-gold);
  font-weight: 500;
  max-width: 600px;
  margin: 0 auto;
  font-style: italic;
  letter-spacing: 0.02em;
}

/* ── 返回顶部 ── */
.page-products__scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--p-neon-purple);
  background: rgba(20, 30, 50, 0.9);
  color: var(--p-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--p-transition), transform var(--p-transition), box-shadow var(--p-transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
}
.page-products__scroll-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.page-products__scroll-top:hover,
.page-products__scroll-top:focus-visible {
  background: rgba(160, 32, 240, 0.2);
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(160, 32, 240, 0.3);
}

/* ── 响应式微调 ── */
@media (max-width: 767px) {
  .page-products__hero-content {
    padding: 1rem 0.5rem 1.5rem;
  }
  .page-products__hero-title {
    font-size: 1.6rem;
  }
  .page-products__card {
    min-height: auto;
  }
  .page-products__card-face {
    padding: 1.25rem 1rem;
  }
  .page-products__card-title {
    font-size: 1.2rem;
  }
  .page-products__card-image-wrapper {
    max-height: 160px;
  }
  .page-products__card-list-item {
    font-size: 0.78rem;
    padding: 0.2rem 0.6rem;
  }
  .page-products__trust {
    margin-top: 2rem;
    padding: 1.5rem 1rem;
  }
  .page-products__scroll-top {
    width: 42px;
    height: 42px;
    bottom: 1rem;
    right: 1rem;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .page-products__bento {
    grid-template-columns: 1fr 1fr;
  }
  .page-products__card--primary {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
  }
  .page-products__card--secondary {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
  }
  .page-products__card--medium:nth-child(3) {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
  }
  .page-products__card--medium:nth-child(4) {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
  }
  .page-products__card-face--back {
    padding: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-products__hero-content {
    padding: 2rem 2rem 2.5rem;
  }
  .page-products__card-face {
    padding: 2rem 1.75rem;
  }
  .page-products__card--primary {
    min-height: 520px;
  }
  .page-products__card--secondary {
    min-height: 480px;
  }
  .page-products__card--medium {
    min-height: 460px;
  }
}

/* ── 打印优化 ── */
@media print {
  .page-products {
    background: #fff;
    color: #222;
  }
  .page-products__hero-img {
    max-height: 200px;
  }
  .page-products__card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  .page-products__scroll-top {
    display: none;
  }
  .page-products__card-face--back {
    display: none !important;
  }
  .page-products__card:hover .page-products__card-face--front {
    opacity: 1 !important;
  }
}