.page-solutions {
  --solutions-band: linear-gradient(90deg, var(--color-primary-soft) 0%, var(--color-highlight) 100%);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-solutions .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}
.page-solutions .crumb {
  color: inherit;
  text-decoration: none;
}
.page-solutions .crumb-sep {
  color: var(--color-line);
}
.page-solutions a.crumb:hover,
.page-solutions a.crumb:focus-visible {
  color: var(--color-accent);
}
.page-solutions .crumb-current {
  color: var(--color-ink-soft);
}

/* ---------- 首屏 ---------- */
.page-solutions .solutions-hero {
  position: relative;
  padding-top: var(--space-4);
}
.page-solutions .solutions-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 70% at 4% 0%, color-mix(in srgb, var(--color-highlight) 80%, transparent) 0%, transparent 62%),
    radial-gradient(90% 62% at 98% 6%, color-mix(in srgb, var(--color-primary-soft) 88%, transparent) 0%, transparent 58%);
}
.page-solutions .hero-shell {
  position: relative;
  z-index: 1;
}
.page-solutions .hero-title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 24ch;
}
.page-solutions .hero-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: center;
  margin-top: var(--space-6);
}
.page-solutions .hero-copy p {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}
.page-solutions .hero-copy p:first-child {
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-primary);
  color: var(--color-ink);
}
.page-solutions .hero-copy p:last-child {
  margin-bottom: 0;
}

/* ---------- 媒体框 ---------- */
.page-solutions .media-frame {
  margin: 0;
  padding: var(--space-2);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.page-solutions .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.page-solutions .media-frame__caption {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* ---------- 首屏关键数字 ---------- */
.page-solutions .hero-figures {
  list-style: none;
  margin: var(--space-8) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--border-thin) solid var(--color-line);
}
.page-solutions .hero-figure {
  padding: var(--space-4) var(--space-2) var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}
.page-solutions .hero-figure .figure {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}
.page-solutions .figure-unit {
  margin-left: 0.12em;
  font-size: var(--text-lg);
  color: var(--color-ink-muted);
}
.page-solutions .hero-figure-label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 矩阵总览 ---------- */
.page-solutions .matrix-map {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}
.page-solutions .matrix-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  text-decoration: none;
  color: var(--color-ink);
  transition: border-color 240ms ease, box-shadow 240ms ease, transform 240ms ease;
}
.page-solutions .matrix-cell::after {
  content: "";
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: 0;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--solutions-band);
  opacity: 0;
  transition: opacity 240ms ease;
}
.page-solutions .matrix-cell:hover,
.page-solutions .matrix-cell:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-1);
  transform: translateY(-2px);
}
.page-solutions .matrix-cell:hover::after,
.page-solutions .matrix-cell:focus-visible::after,
.page-solutions .matrix-cell[aria-current="true"]::after {
  opacity: 1;
}
.page-solutions .matrix-cell[aria-current="true"] {
  border-color: var(--color-accent);
}
.page-solutions .matrix-cell__index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-accent);
}
.page-solutions .matrix-cell__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
}
.page-solutions .matrix-cell__count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 方案分组 ---------- */
.page-solutions .solution-group {
  position: relative;
  scroll-margin-top: var(--space-8);
}
.page-solutions .solution-group + .solution-group::before {
  content: "";
  position: absolute;
  top: calc(var(--space-8) * -0.5);
  left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--solutions-band);
  opacity: 0.55;
}
.page-solutions .group-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.page-solutions .group-solo {
  max-width: 78ch;
}
.page-solutions .group-title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}
.page-solutions .group-intro {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 方案条目卡 ---------- */
.page-solutions .plan {
  position: relative;
  overflow: hidden;
  margin-top: var(--space-4);
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-6);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  transition: box-shadow 240ms ease, transform 240ms ease;
}
.page-solutions .plan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  transition: width 240ms ease;
}
.page-solutions .plan:hover,
.page-solutions .plan:focus-within {
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}
.page-solutions .plan:hover::before,
.page-solutions .plan:focus-within::before {
  width: 7px;
}
.page-solutions .plan-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  color: var(--color-ink);
}
.page-solutions .plan .card-meta {
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}
.page-solutions .plan-scene {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dashed var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
  opacity: 0.88;
  transition: opacity 240ms ease;
}
.page-solutions .plan:hover .plan-scene,
.page-solutions .plan:focus-within .plan-scene {
  opacity: 1;
}
.page-solutions .plan-scene a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 要点清单 ---------- */
.page-solutions .point-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.page-solutions .point-list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}
.page-solutions .point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 2px;
  height: 0.85em;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

/* ---------- 深色对比区块（电脑版方案） ---------- */
.page-solutions .contrast-block {
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  box-shadow: var(--shadow-2);
}
.page-solutions .contrast-block .eyebrow {
  color: var(--color-contrast-accent);
}
.page-solutions .contrast-block .eyebrow::before {
  background: var(--color-contrast-accent);
}
.page-solutions .contrast-block .group-title {
  color: var(--color-contrast-ink);
}
.page-solutions .contrast-block .group-intro {
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}
.page-solutions .contrast-block .plan {
  background: color-mix(in srgb, var(--color-contrast-ink) 7%, transparent);
  border-color: var(--color-contrast-line);
  box-shadow: none;
}
.page-solutions .contrast-block .plan:hover,
.page-solutions .contrast-block .plan:focus-within {
  box-shadow: none;
  border-color: var(--color-contrast-accent);
}
.page-solutions .contrast-block .plan::before {
  background: var(--color-contrast-accent);
}
.page-solutions .contrast-block .plan-title {
  color: var(--color-contrast-ink);
}
.page-solutions .contrast-block .plan .card-meta {
  color: var(--color-contrast-accent);
}
.page-solutions .contrast-block .point-list li {
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}
.page-solutions .contrast-block .point-list li::before {
  background: var(--color-contrast-accent);
}
.page-solutions .contrast-block .plan-scene {
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
  border-top-color: var(--color-contrast-line);
}
.page-solutions .contrast-block .media-frame {
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
  border-color: var(--color-contrast-line);
  box-shadow: none;
}
.page-solutions .contrast-block .media-frame__caption {
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

/* ---------- 一致性对照 ---------- */
.page-solutions .consistency-row {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}
.page-solutions .consistency-item {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  background-image: linear-gradient(150deg, color-mix(in srgb, var(--color-primary-soft) 72%, transparent) 0%, transparent 72%);
}
.page-solutions .consistency-key {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-accent);
}
.page-solutions .consistency-value {
  display: block;
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-ink);
}

/* ---------- 选用建议 ---------- */
.page-solutions .pick-frame {
  padding: var(--space-6) var(--space-6) var(--space-8);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-alt);
  background-image: linear-gradient(200deg, color-mix(in srgb, var(--color-highlight) 62%, transparent) 0%, transparent 58%);
}
.page-solutions .pick-head {
  max-width: var(--measure);
}
.page-solutions .pick-intro {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}
.page-solutions .pick-list {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}
.page-solutions .pick-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}
.page-solutions .pick-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--space-4);
  height: var(--space-4);
  flex: none;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}
.page-solutions .pick-title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.4;
  color: var(--color-ink);
}
.page-solutions .pick-body p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}
.page-solutions .pick-body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-solutions .pick-body a:hover,
.page-solutions .pick-body a:focus-visible {
  color: var(--color-focus);
}

/* ---------- 平板 ---------- */
@media (min-width: 620px) {
  .page-solutions .matrix-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-solutions .consistency-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-solutions .pick-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-solutions .pick-list li:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 760px) {
  .page-solutions .hero-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-solutions .hero-figure {
    padding-right: var(--space-4);
    border-bottom: 0;
    border-right: var(--border-thin) solid var(--color-line);
  }
  .page-solutions .hero-figure:last-child {
    border-right: 0;
  }
}

/* ---------- 桌面：错落的图文矩阵 ---------- */
@media (min-width: 980px) {
  .page-solutions .hero-intro {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--space-8);
  }
  .page-solutions .group-inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--space-8);
  }
  .page-solutions .solution-group[data-flip="true"] .group-copy {
    order: 2;
    margin-top: var(--space-4);
  }
  .page-solutions .solution-group[data-flip="true"] .group-media {
    order: 1;
    margin-top: var(--space-6);
  }
  .page-solutions .group-media {
    margin-top: var(--space-8);
  }
  .page-solutions .matrix-map {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 700px) {
  .page-solutions .hero-title {
    max-width: none;
  }
  .page-solutions .plan {
    padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  }
  .page-solutions .contrast-block {
    padding: var(--space-6) var(--space-3);
  }
  .page-solutions .pick-frame {
    padding: var(--space-4) var(--space-3) var(--space-6);
  }
  .page-solutions .hero-copy p {
    font-size: var(--text-base);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-solutions .plan,
  .page-solutions .plan::before,
  .page-solutions .plan-scene,
  .page-solutions .matrix-cell,
  .page-solutions .matrix-cell::after {
    transition: none;
  }
  .page-solutions .plan:hover,
  .page-solutions .plan:focus-within,
  .page-solutions .matrix-cell:hover,
  .page-solutions .matrix-cell:focus-visible {
    transform: none;
  }
}