/* ===== 方案中心 · 页面专属样式（作用域 .page-solutions） ===== */

.page-solutions {
  --sol-hero-fill: linear-gradient(152deg, var(--color-primary-soft) 0%, var(--color-surface) 46%, var(--color-highlight) 100%);
  --sol-card-fill: linear-gradient(155deg, var(--color-primary-soft) 0%, var(--color-surface) 78%);
  --sol-tint-fill: linear-gradient(180deg, var(--color-surface) 0%, var(--color-surface-alt) 34%, var(--color-surface-alt) 66%, var(--color-surface) 100%);
}

/* ---------- 面包屑 ---------- */

.page-solutions .breadcrumbs {
  padding-block: var(--space-4) 0;
}

.page-solutions .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-solutions .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
}

.page-solutions .breadcrumbs__item + .breadcrumbs__item::before {
  content: "／";
  margin-inline: var(--space-1);
  color: var(--color-ink-muted);
  opacity: 0.6;
}

.page-solutions .breadcrumbs__item a {
  color: var(--color-ink-soft);
  text-decoration: none;
}

.page-solutions .breadcrumbs__item a:hover,
.page-solutions .breadcrumbs__item a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */

.page-solutions .sol-hero {
  position: relative;
  isolation: isolate;
  padding-block: var(--space-6) var(--space-8);
}

.page-solutions .sol-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--sol-hero-fill);
  clip-path: polygon(0 0, 100% 0, 100% 82%, 0 100%);
}

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

@media (min-width: 900px) {
  .page-solutions .sol-hero__grid {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

.page-solutions .sol-hero__index {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  min-width: 0;
}

@media (min-width: 900px) {
  .page-solutions .sol-hero__index {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: var(--space-4);
    border-inline-end: var(--border-thin) solid var(--color-line);
    padding-inline-end: var(--space-4);
  }
}

.page-solutions .sol-hero__slot {
  display: flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: var(--space-1);
  text-decoration: none;
  color: var(--color-primary);
  transition: color 0.18s ease;
}

@media (min-width: 900px) {
  .page-solutions .sol-hero__slot {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }
}

.page-solutions .sol-hero__slot:hover {
  color: var(--color-accent);
}

.page-solutions .sol-hero__slot:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

.page-solutions .sol-hero__num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: inherit;
}

@media (min-width: 900px) {
  .page-solutions .sol-hero__num {
    font-size: var(--text-figure);
  }
}

.page-solutions .sol-hero__num-k {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

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

.page-solutions .sol-hero__title {
  margin: var(--space-2) 0 0;
  max-width: 14ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-solutions .sol-hero__lede {
  margin: var(--space-3) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-solutions .sol-hero__note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.page-solutions .sol-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-solutions .sol-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-inline-start: var(--space-3);
  border-inline-start: var(--border-thin) solid var(--color-line);
}

.page-solutions .sol-stat__v {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
}

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

.page-solutions .sol-hero__media {
  margin: var(--space-6) 0 0;
}

.page-solutions .sol-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
  box-shadow: var(--shadow-1);
}

/* ---------- 分组通用骨架 ---------- */

.page-solutions .sol-group {
  padding-block: var(--section-y);
}

.page-solutions .sol-group--pair,
.page-solutions .sol-group--split {
  background: var(--sol-tint-fill);
}

.page-solutions .sol-group__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
}

@media (min-width: 768px) {
  .page-solutions .sol-group__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-6);
    align-items: end;
  }
}

.page-solutions .sol-group__head .section-head__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  opacity: 0.9;
}

.page-solutions .sol-group__head .section-title {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

@media (min-width: 768px) {
  .page-solutions .sol-group__head .section-title {
    font-size: var(--text-3xl);
  }
}

.page-solutions .sol-group__head .section-lede {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-solutions .sol-group__head .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-solutions .sol-group__head .link,
.page-solutions .sol-item .link {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-solutions .sol-group__head .link:hover,
.page-solutions .sol-item .link:hover {
  color: var(--color-focus);
}

/* ---------- 分组一：图文错位 + 竖排条目 ---------- */

.page-solutions .sol-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-6);
}

@media (min-width: 900px) {
  .page-solutions .sol-flow {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-8);
    align-items: start;
  }
}

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

.page-solutions .sol-flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
  box-shadow: var(--shadow-1);
}

.page-solutions .sol-flow__list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-solutions .sol-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.page-solutions .sol-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

.page-solutions .sol-item__num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-ink-muted);
  transition: color 0.2s ease;
}

.page-solutions .sol-item:hover .sol-item__num {
  color: var(--color-accent);
}

.page-solutions .sol-item__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  color: var(--color-ink);
}

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

.page-solutions .sol-item__cond {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

.page-solutions .sol-item__cond span {
  display: inline-block;
  margin-inline-end: var(--space-1);
  padding-inline: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

/* ---------- 分组二：横向成对卡片 ---------- */

.page-solutions .sol-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

@media (min-width: 640px) {
  .page-solutions .sol-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-solutions .sol-pair {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-solutions .sol-pair__figure {
  margin: 0 0 var(--space-3);
  grid-column: 1 / -1;
}

.page-solutions .sol-pair__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-solutions .sol-pair__card {
  position: relative;
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-4);
  padding-top: var(--space-6);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, var(--color-primary-soft) 0%, var(--color-surface) 44%);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-solutions .sol-pair__card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-1);
}

.page-solutions .sol-pair__card .sol-item__num {
  position: absolute;
  inset-block-start: var(--space-3);
  inset-inline-end: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-solutions .sol-pair__card:hover .sol-item__num {
  color: var(--color-accent);
}

/* ---------- 分组三：内嵌框体列表 ---------- */

.page-solutions .sol-frame {
  margin-top: var(--space-6);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-deep);
  overflow: hidden;
}

.page-solutions .sol-frame__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
  transition: background-color 0.2s ease;
}

.page-solutions .sol-frame__row:first-child {
  border-top: 0;
}

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

@media (min-width: 768px) {
  .page-solutions .sol-frame__row {
    grid-template-columns: auto minmax(0, 1.2fr) minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
    padding: var(--space-4) var(--space-6);
  }
}

.page-solutions .sol-frame__row .sol-item__num {
  font-size: var(--text-xl);
}

.page-solutions .sol-frame__row .sol-item__cond {
  margin: 0;
}

/* ---------- 分组四：渐变数字卡 ---------- */

.page-solutions .sol-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

@media (min-width: 768px) {
  .page-solutions .sol-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

.page-solutions .sol-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-6) var(--space-4) var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--sol-card-fill);
}

.page-solutions .sol-card::after {
  content: "";
  position: absolute;
  inset-inline-end: 0;
  bottom: 0;
  width: 42%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, transparent 48%, var(--color-highlight) 48%);
  opacity: 0.7;
  pointer-events: none;
}

.page-solutions .sol-card > * {
  position: relative;
  z-index: 1;
}

.page-solutions .sol-card__num {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-primary);
}

.page-solutions .sol-cards__figure {
  margin: var(--space-4) 0 0;
}

.page-solutions .sol-cards__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

/* ---------- 分组五：双列对照 ---------- */

.page-solutions .sol-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-6);
}

@media (min-width: 960px) {
  .page-solutions .sol-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

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

@media (min-width: 520px) {
  .page-solutions .sol-taxonomy {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-solutions .sol-taxonomy__node {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-2) var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--text-sm);
  color: var(--color-ink);
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.page-solutions .sol-taxonomy__node:hover {
  border-color: var(--color-accent);
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-solutions .sol-taxonomy__idx {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-primary);
}

.page-solutions .sol-taxonomy__node:hover .sol-taxonomy__idx {
  color: var(--color-accent);
}

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

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

.page-solutions .sol-split__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
  box-shadow: var(--shadow-1);
}

.page-solutions .sol-split__items {
  display: grid;
  gap: var(--space-3);
}

/* ---------- 选择建议 ---------- */

.page-solutions .sol-choose {
  padding-block: var(--section-y-lg) var(--section-y);
}

.page-solutions .sol-choose__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .page-solutions .sol-choose__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-8);
    align-items: start;
  }
}

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

@media (min-width: 768px) {
  .page-solutions .sol-choose__intro .section-title {
    font-size: var(--text-3xl);
  }
}

.page-solutions .sol-choose__intro p {
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-solutions .sol-choose__intro .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-solutions .sol-choose__intro .btn {
  margin-top: var(--space-4);
}

.page-solutions .sol-choose__list {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-solutions .sol-choose__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-solutions .sol-choose__row:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

@media (min-width: 640px) {
  .page-solutions .sol-choose__row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-3);
  }
}

.page-solutions .sol-choose__q {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-solutions .sol-choose__a {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

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

.page-solutions .sol-choose__a:focus-visible,
.page-solutions .sol-hero__slot:focus-visible,
.page-solutions .sol-group__head .link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

/* ---------- 图片说明 ---------- */

.page-solutions .media__caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}