/* ============================================================
   对照产品 /product-center/  页面私有样式
   作用域：.page-products
   ============================================================ */

.page-products {
  --prod-card-bg: var(--color-surface-alt);
  --prod-card-deep: var(--color-contrast-surface);
}

/* ---------- 1. 首屏 ---------- */

.page-products .prod-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-6) 0 var(--space-8);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-products .prod-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-products .prod-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .prod-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--overlay-scrim);
}

.page-products .prod-hero__grid,
.page-products .prod-hero__strip {
  position: relative;
  z-index: 1;
}

.page-products .prod-hero__grid {
  display: grid;
  gap: var(--space-6);
}

.page-products .prod-hero .breadcrumb {
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.page-products .prod-hero__eyebrow,
.page-products .prod-hero .eyebrow {
  color: var(--color-contrast-accent);
}

.page-products .prod-hero__title {
  margin: var(--space-3) 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary-ink);
}

.page-products .prod-hero__lede {
  max-width: 44ch;
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* 首屏关键数字面板 */

.page-products .prod-hero__panel {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-surface) 74%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-contrast-ink) 18%, transparent);
}

.page-products .prod-hero__panel-kicker {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-products .prod-figure {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) dotted var(--color-contrast-line);
}

.page-products .prod-figure:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .prod-figure__num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 0.86;
  letter-spacing: -0.02em;
  color: var(--color-contrast-ink);
}

.page-products .prod-figure__label {
  flex: 1 1 12ch;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-contrast-ink);
  opacity: 0.76;
}

/* 首屏胶囊索引条 */

.page-products .prod-hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--border-thin) dotted var(--color-contrast-line);
  list-style: none;
}

.page-products .prod-hero__strip > li {
  display: flex;
  flex: 1 1 auto;
}

.page-products .prod-hero__strip > li:nth-child(1) { flex-grow: 2.4; }
.page-products .prod-hero__strip > li:nth-child(2) { flex-grow: 1.8; }
.page-products .prod-hero__strip > li:nth-child(3) { flex-grow: 1.5; }
.page-products .prod-hero__strip > li:nth-child(4) { flex-grow: 1.2; }
.page-products .prod-hero__strip > li:nth-child(5) { flex-grow: 1; }

.page-products .prod-chip {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-products .prod-chip .mono {
  font-size: var(--text-xs);
  color: var(--color-contrast-accent);
}

.page-products .prod-chip:hover,
.page-products .prod-chip:focus-visible {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* ---------- 2. 能力矩阵 ---------- */

.page-products .prod-matrix {
  padding: var(--section-y) 0 var(--space-6);
  background: var(--color-surface);
}

.page-products .prod-matrix__head {
  max-width: 62ch;
  margin-bottom: var(--space-6);
}

.page-products .prod-matrix__head h2 {
  margin: var(--space-3) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-products .prod-matrix__lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .prod-matrix__grid {
  display: grid;
  gap: var(--space-3);
}

/* 卡片基础 */

.page-products .prod-cell {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--prod-card-bg);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.page-products .prod-cell:hover,
.page-products .prod-cell:focus-within {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-line));
  box-shadow: var(--shadow-2);
}

.page-products .prod-cell__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-products .prod-cell__index {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-products .prod-cell__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-products .prod-lamp {
  flex: none;
  width: var(--space-1);
  height: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 22%, transparent);
  animation: prod-breathe 2.4s ease-in-out infinite;
}

@keyframes prod-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.42; }
}

.page-products .prod-cell__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-products .prod-cell--compare .prod-cell__title {
  font-size: var(--text-2xl);
}

.page-products .prod-cell__lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.62;
  color: var(--color-ink-soft);
}

.page-products .prod-cell__points {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  line-height: 1.62;
  color: var(--color-ink-soft);
}

.page-products .prod-cell__points li {
  position: relative;
  padding-left: var(--space-3);
}

.page-products .prod-cell__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: var(--space-1);
  height: var(--space-1);
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-primary);
}

.page-products .prod-cell__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  aspect-ratio: 3 / 2;
  background: var(--color-surface-deep);
}

.page-products .prod-cell__media--square { aspect-ratio: 1 / 1; }
.page-products .prod-cell__media--band { aspect-ratio: 16 / 9; }
.page-products .prod-cell__media--slim { aspect-ratio: 12 / 5; }

.page-products .prod-cell__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .prod-cell__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-products .prod-cell__badge {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}

.page-products .prod-cell__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-products .prod-cell__tags .pill {
  padding: var(--space-1) var(--space-3);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  color: var(--color-primary);
}

.page-products .prod-cell__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-products .prod-cell__link {
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  text-decoration: none;
}

.page-products .prod-cell__link:hover,
.page-products .prod-cell__link:focus-visible {
  color: var(--color-accent);
}

/* 底部两块略微反相，形成节奏 */

.page-products .prod-cell--preview {
  background: var(--color-surface);
  border-style: dotted;
}

.page-products .prod-cell--fix {
  background: color-mix(in srgb, var(--color-primary-soft) 55%, var(--color-surface));
  border-color: color-mix(in srgb, var(--color-primary) 32%, var(--color-line));
}

/* ---------- 3. 起点建议 ---------- */

.page-products .prod-start {
  padding: 0 0 var(--section-y);
  background: var(--color-surface);
}

.page-products .prod-start__panel {
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
}

.page-products .prod-start__head h2 {
  margin: var(--space-3) 0 var(--space-6);
  max-width: 30ch;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-products .prod-start__list {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .prod-start__item {
  display: grid;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-products .prod-start__num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-accent);
  line-height: 1;
}

.page-products .prod-start__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-products .prod-start__item p {
  margin: 0;
  max-width: 46ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .prod-start__item a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

.page-products .prod-start__item a:hover,
.page-products .prod-start__item a:focus-visible {
  color: var(--color-accent);
}

.page-products .prod-start__foot {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
  max-width: 62ch;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.page-products .prod-start__foot a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

/* ---------- 4. 响应式 ---------- */

@media (min-width: 760px) {
  .page-products .prod-hero {
    padding: var(--space-8) 0 var(--space-8);
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
  }

  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: end;
    gap: var(--space-8);
  }

  .page-products .prod-start__panel {
    padding: var(--space-8) var(--space-6);
  }

  .page-products .prod-start__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 1040px) {
  .page-products .prod-matrix__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-products .prod-cell--compare {
    grid-column: 1 / 8;
    grid-row: 1 / 3;
  }

  .page-products .prod-cell--subscribe {
    grid-column: 8 / 13;
    grid-row: 1 / 2;
  }

  .page-products .prod-cell--archive {
    grid-column: 8 / 13;
    grid-row: 2 / 3;
  }

  .page-products .prod-cell--preview {
    grid-column: 1 / 8;
    grid-row: 3 / 4;
  }

  .page-products .prod-cell--fix {
    grid-column: 8 / 13;
    grid-row: 3 / 4;
  }

  .page-products .prod-cell--subscribe .prod-cell__media--square {
    aspect-ratio: 4 / 3;
  }

  .page-products .prod-cell--archive .prod-cell__media--band {
    aspect-ratio: 3 / 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-lamp {
    animation: none;
  }

  .page-products .prod-cell,
  .page-products .prod-chip {
    transition: none;
  }

  .page-products .prod-cell:hover,
  .page-products .prod-cell:focus-within {
    transform: none;
  }
}