.page-solutions {
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-solutions .wrap {
  box-sizing: border-box;
}

/* ---------- HERO ---------- */
.page-solutions .sol-hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-6) var(--section-y);
  border-bottom: var(--border-thin) solid var(--color-line);
  background:
    radial-gradient(circle at 84% 14%, color-mix(in srgb, var(--color-primary) 16%, transparent), transparent 58%),
    linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-surface) 100%);
}

.page-solutions .sol-hero__grid {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-6);
}

.page-solutions .sol-hero__kicker {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-solutions .sol-hero__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.9;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  word-break: keep-all;
}

.page-solutions .sol-hero__lede {
  max-width: 44ch;
  margin: 0 0 var(--space-6);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-solutions .sol-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-solutions .sol-hero__stat {
  min-width: 0;
}

.page-solutions .sol-hero__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 0.85;
  color: var(--color-primary);
}

.page-solutions .sol-hero__stat-label {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink-muted);
}

.page-solutions .sol-hero__visual {
  min-width: 0;
}

.page-solutions .sol-flow {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 26px color-mix(in srgb, var(--color-primary) 26%, transparent));
}

.page-solutions .sol-flow__frame {
  fill: var(--color-contrast-surface);
  stroke: var(--color-contrast-line);
  stroke-width: 1;
}

.page-solutions .sol-flow__seg {
  fill: color-mix(in srgb, var(--color-primary) 8%, transparent);
  stroke: var(--color-contrast-line);
  stroke-width: 2;
}

.page-solutions .sol-flow__seg--done {
  fill: color-mix(in srgb, var(--color-primary) 24%, transparent);
  stroke: color-mix(in srgb, var(--color-primary) 72%, transparent);
}

.page-solutions .sol-flow__seg--active {
  fill: color-mix(in srgb, var(--color-primary) 15%, transparent);
  stroke: var(--color-primary);
}

.page-solutions .sol-flow__lamp {
  fill: var(--color-contrast-line);
}

.page-solutions .sol-flow__lamp--on {
  fill: var(--color-contrast-accent);
}

.page-solutions .sol-flow__bar {
  fill: color-mix(in srgb, var(--color-contrast-line) 80%, transparent);
}

.page-solutions .sol-flow__fill {
  fill: var(--color-primary);
}

.page-solutions .sol-flow__fill--dim {
  fill: color-mix(in srgb, var(--color-primary) 55%, transparent);
}

.page-solutions .sol-flow__arrow {
  fill: none;
  stroke: var(--color-contrast-line);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-solutions .sol-flow__cap {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  text-align: center;
}

/* ---------- 共用小标题 ---------- */
.page-solutions .sol-head {
  max-width: 66ch;
  margin-bottom: var(--space-6);
}

.page-solutions .sol-head__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);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-solutions .sol-head__lede {
  margin: 0;
  font-size: var(--text-base);
  color: var(--color-ink-soft);
}

.page-solutions .sol-head__lede a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 4px;
  transition: color 160ms ease-out;
}

.page-solutions .sol-head__lede a:hover,
.page-solutions .sol-head__lede a:focus-visible {
  color: var(--color-focus);
}

.page-solutions .sol-head--dark .sol-head__title {
  color: var(--color-contrast-ink);
}

.page-solutions .sol-head--dark .sol-head__lede,
.page-solutions .sol-head--dark .eyebrow {
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

/* ---------- 面板墙 ---------- */
.page-solutions .sol-wall {
  padding-block: var(--section-y);
}

.page-solutions .sol-wall__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-solutions .sol-card {
  border-radius: 0;
  transition: border-color 160ms ease-out, box-shadow 160ms ease-out;
}

.page-solutions .sol-card .panel__num {
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
}

.page-solutions .sol-card .panel__body {
  display: grid;
  gap: var(--space-2);
}

.page-solutions .sol-card__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-solutions .sol-card__for {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-solutions .sol-card__for .mono {
  display: inline-block;
  margin-right: var(--space-1);
  padding: 0 var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-solutions .sol-card__out {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-solutions .sol-card__out .capsule {
  font-size: var(--text-xs);
}

.page-solutions .sol-card:hover,
.page-solutions .sol-card:focus-within {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-2);
}

/* ---------- 横幅图 ---------- */
.page-solutions .sol-banner {
  margin: 0;
  border-block: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
}

.page-solutions .sol-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-solutions .sol-banner__cap {
  padding: var(--space-3) var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  max-width: var(--measure);
}

/* ---------- 方案详情 ---------- */
.page-solutions .sol-plans {
  padding-block: var(--section-y);
}

.page-solutions .sol-plan {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding-block: var(--space-6);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-solutions .sol-plan:last-child {
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.page-solutions .sol-plan__id {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.page-solutions .sol-plan__no {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.page-solutions .sol-plan__dot {
  width: var(--space-2);
  height: var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  transition: background 160ms ease-out, border-color 160ms ease-out;
}

.page-solutions .sol-plan:hover .sol-plan__dot,
.page-solutions .sol-plan:focus-within .sol-plan__dot {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.page-solutions .sol-plan__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-solutions .sol-plan__cond {
  margin: 0 0 var(--space-3);
  padding: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
  background: var(--color-primary-soft);
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-solutions .sol-plan__cond .mono {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-solutions .sol-plan__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin: 0 0 var(--space-3);
  padding: 0;
  list-style: none;
}

.page-solutions .sol-plan__step {
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-line);
  transition: border-color 160ms ease-out;
}

.page-solutions .sol-plan__step:hover {
  border-left-color: var(--color-accent);
}

.page-solutions .sol-plan__step-no {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-solutions .sol-plan__step p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-solutions .sol-plan__out {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-solutions .sol-plan__out-label {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  margin-right: var(--space-1);
}

.page-solutions .sol-plan__out .capsule {
  font-size: var(--text-xs);
}

.page-solutions .sol-plan__inner {
  display: grid;
  gap: var(--space-4);
}

.page-solutions .sol-plan__figure {
  margin: 0;
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
}

.page-solutions .sol-plan__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: calc(var(--space-8) * 6);
  object-fit: cover;
}

.page-solutions .sol-plan__cap {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-solutions .sol-plan__figure--inline {
  margin-top: var(--space-3);
}

/* ---------- 组合建议 ---------- */
.page-solutions .sol-combos {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: var(--section-y);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-solutions .sol-combos__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
  z-index: -2;
}

.page-solutions .sol-combos__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  z-index: -1;
}

.page-solutions .sol-combos__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-solutions .sol-combo {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-surface) 78%, transparent);
  transition: border-color 160ms ease-out, background 160ms ease-out;
}

.page-solutions .sol-combo:hover,
.page-solutions .sol-combo:focus-within {
  border-color: var(--color-contrast-accent);
  background: color-mix(in srgb, var(--color-contrast-surface) 88%, transparent);
}

.page-solutions .sol-combo__who {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-contrast-accent);
}

.page-solutions .sol-combo__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-solutions .sol-combo__path {
  margin: 0;
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-solutions .sol-combo__desc {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}

.page-solutions .sol-combo__note {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-solutions .sol-combos__figure {
  margin: 0;
  border: var(--border-thin) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-surface) 82%, transparent);
}

.page-solutions .sol-combos__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: calc(var(--space-8) * 5);
  object-fit: cover;
}

.page-solutions .sol-combos__figure .sol-combo__note {
  padding: var(--space-2) var(--space-3);
  border-top: var(--border-thin) dotted var(--color-contrast-line);
}

/* ---------- 节奏与清单 ---------- */
.page-solutions .sol-rhythm {
  padding-block: var(--section-y);
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-solutions .sol-rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-solutions .sol-rhythm__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-solutions .sol-rhythm__row {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) dotted var(--color-line);
  transition: background 160ms ease-out;
}

.page-solutions .sol-rhythm__row:hover {
  background: var(--color-surface);
}

.page-solutions .sol-rhythm__when {
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-solutions .sol-rhythm__what {
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-solutions .sol-rhythm__out {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-solutions .sol-checklist {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-solutions .sol-checklist__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3);
  cursor: pointer;
  list-style: none;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-solutions .sol-checklist__summary::-webkit-details-marker {
  display: none;
}

.page-solutions .sol-checklist__summary .mono {
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-contrast-accent);
}

.page-solutions .sol-checklist__hint {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-solutions .sol-check {
  margin: 0;
  padding: var(--space-2) var(--space-3) var(--space-3);
  list-style: none;
}

.page-solutions .sol-check__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding-block: var(--space-2);
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.page-solutions .sol-check__item:last-child {
  border-bottom: 0;
}

.page-solutions .sol-check__box {
  flex: 0 0 auto;
  width: var(--space-3);
  height: var(--space-3);
  margin-top: 2px;
  border: var(--border-thick) solid var(--color-line);
  background: var(--color-surface-alt);
  position: relative;
  transition: background 160ms ease-out, border-color 160ms ease-out;
}

.page-solutions .sol-check__item:hover .sol-check__box,
.page-solutions .sol-check__item:focus-within .sol-check__box {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.page-solutions .sol-check__item:hover .sol-check__box::after,
.page-solutions .sol-check__item:focus-within .sol-check__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 6px;
  height: 11px;
  border-right: var(--border-thick) solid var(--color-primary);
  border-bottom: var(--border-thick) solid var(--color-primary);
  transform: rotate(42deg);
}

.page-solutions .sol-check__text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.page-solutions .sol-checklist__foot {
  margin: 0;
  padding: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-solutions .sol-checklist__foot a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 4px;
}

.page-solutions .sol-checklist__foot a:hover,
.page-solutions .sol-checklist__foot a:focus-visible {
  color: var(--color-focus);
}

/* ---------- 焦点态 ---------- */
.page-solutions a:focus-visible,
.page-solutions summary:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-solutions .sol-wall__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-solutions .sol-card:nth-child(1) { grid-column: span 4; }
  .page-solutions .sol-card:nth-child(2) { grid-column: span 2; margin-top: var(--space-8); }
  .page-solutions .sol-card:nth-child(3) { grid-column: span 2; }
  .page-solutions .sol-card:nth-child(4) { grid-column: span 4; margin-top: calc(var(--space-8) * -0.35); }
  .page-solutions .sol-card:nth-child(5) { grid-column: span 3; }
  .page-solutions .sol-card:nth-child(6) { grid-column: span 3; margin-top: var(--space-6); }

  .page-solutions .sol-plan__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-solutions .sol-rhythm__row {
    grid-template-columns: calc(var(--space-8) * 1.6) minmax(0, 1fr) auto;
    align-items: baseline;
    gap: var(--space-3);
  }
}

@media (min-width: 860px) {
  .page-solutions .sol-hero {
    padding-block: var(--space-8) var(--section-y-lg);
  }

  .page-solutions .sol-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.94fr);
    align-items: center;
    gap: var(--space-6);
  }

  .page-solutions .sol-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: end;
    max-width: none;
  }

  .page-solutions .sol-head .eyebrow {
    grid-column: 1 / -1;
    margin: 0;
  }

  .page-solutions .sol-head__title {
    margin: 0;
  }

  .page-solutions .sol-head__lede {
    margin: 0;
  }

  .page-solutions .sol-plan {
    grid-template-columns: calc(var(--space-8) * 2) minmax(0, 1fr);
    gap: var(--space-6);
    padding-block: var(--space-8);
  }

  .page-solutions .sol-plan__id {
    align-items: flex-start;
    padding-top: var(--space-1);
  }

  .page-solutions .sol-plan__dot {
    margin-top: var(--space-2);
  }

  .page-solutions .sol-plan__inner {
    align-items: start;
  }

  .page-solutions .sol-plan--media .sol-plan__inner {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.86fr);
    gap: var(--space-4);
  }

  .page-solutions .sol-plan__figure--inline {
    max-width: 62%;
    margin-top: var(--space-4);
  }

  .page-solutions .sol-banner__cap {
    padding-inline: 0;
  }
}

@media (min-width: 900px) {
  .page-solutions .sol-rhythm__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--space-8);
    align-items: start;
  }
}

@media (min-width: 1020px) {
  .page-solutions .sol-combos__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-solutions .sol-combos__figure {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1180px) {
  .page-solutions .sol-hero__grid {
    gap: var(--space-8);
  }
}