.page-products {
  --solutions-gutter: clamp(1.25rem, 4vw, 3rem);
  background-color: var(--color-base);
}

/* ===== 首屏：章节预览 ===== */
.page-solutions-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.page-solutions-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
  pointer-events: none;
}

.page-solutions-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.page-solutions-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(110deg, rgba(11, 29, 58, 0.97) 0%, rgba(11, 29, 58, 0.84) 45%, rgba(14, 39, 74, 0.88) 100%);
  pointer-events: none;
}

.page-solutions-hero__container {
  position: relative;
  z-index: 2;
}

.page-solutions-hero .breadcrumb {
  margin-top: 1rem;
}

.page-solutions-hero__grid {
  display: grid;
  gap: 2.25rem;
  padding: 3rem 0 4rem;
}

.page-solutions-hero__mono {
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.page-solutions-hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.75rem, 7vw, 3.25rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin: 0.375rem 0 1.25rem;
}

.page-solutions-hero__lead {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-muted);
  max-width: 36em;
  margin-bottom: 0.25rem;
}

.page-solutions-hero__lead strong {
  color: var(--color-accent);
  font-weight: 600;
}

.page-solutions-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* ===== 目录面板 ===== */
.page-solutions-index {
  background: var(--color-base-deep);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--color-highlight);
  padding: 1.5rem;
}

.page-solutions-index__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.page-solutions-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-solutions-index__list li + li {
  border-top: 1px solid rgba(0, 229, 255, 0.08);
}

.page-solutions-index__list a {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 0;
  text-decoration: none;
  color: var(--color-text);
  transition: color var(--transition), padding-left var(--transition);
}

.page-solutions-index__list a:hover,
.page-solutions-index__list a:focus-visible {
  color: var(--color-accent);
  padding-left: 0.5rem;
}

.page-solutions-index__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
  min-width: 2em;
}

.page-solutions-index__tag {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.5rem;
  white-space: nowrap;
}

.page-solutions-index__note {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

/* ===== 通用方案区块 ===== */
.page-solutions-block {
  border-bottom: 1px solid var(--border-color);
}

.page-solutions-block__grid {
  display: grid;
  gap: 2rem;
  padding: 3rem 0;
}

.page-solutions-block__lead-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-muted);
  max-width: 38em;
}

.page-solutions-block__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.5rem;
}

.page-solutions-block__facts--center {
  justify-content: center;
}

.page-solutions-block__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.5rem;
}

/* ===== 图片框架 ===== */
.page-products .image-frame {
  position: relative;
  margin: 0;
}

.page-products .image-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-solutions-block__sync-image,
.page-solutions-block__arch-image {
  margin: 1.5rem 0 0;
}

/* ===== 收藏同步步骤 ===== */
.page-solutions-steps {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.page-solutions-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.875rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0, 229, 255, 0.08);
}

.page-solutions-steps li:first-child {
  border-top: 1px solid rgba(0, 229, 255, 0.08);
}

.page-solutions-steps__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-highlight);
}

.page-solutions-steps strong {
  display: block;
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.page-solutions-steps p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted);
  margin: 0;
}

/* ===== 数据下载列表 ===== */
.page-solutions-download-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.page-solutions-download-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-muted);
  margin-bottom: 0.625rem;
}

.page-solutions-download-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-accent);
}

/* ===== 技术架构卡片 ===== */
.page-solutions-arch-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-solutions-arch-card {
  background: var(--color-base-deep);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  position: relative;
}

.page-solutions-arch-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  opacity: 0.7;
}

.page-solutions-arch-card__code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.page-solutions-arch-card h3 {
  font-size: 1.125rem;
  line-height: 1.4;
  color: var(--color-text);
  margin: 0 0 0.625rem;
}

.page-solutions-arch-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0 0 1rem;
}

/* ===== 底部连接区 ===== */
.page-solutions-connect {
  background: var(--color-carbon);
}

.page-solutions-connect__inner {
  display: grid;
  gap: 1.5rem;
  padding: 3rem 0 1.5rem;
}

.page-solutions-connect h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  line-height: 1.2;
  color: var(--color-text);
  margin: 0.375rem 0 0;
}

.page-solutions-connect__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-solutions-connect__note {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--border-color);
}

/* ===== 平板与桌面 ===== */
@media (min-width: 768px) {
  .page-solutions-hero__grid {
    grid-template-columns: 1.35fr 1fr;
    align-items: center;
    gap: 3rem;
    padding: 4.5rem 0 5.5rem;
  }

  .page-solutions-block__grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 3rem;
    padding: 4.5rem 0;
  }

  .page-solutions-block__grid--reverse .page-solutions-block__body {
    order: 2;
  }

  .page-solutions-block__center {
    text-align: center;
  }

  .page-solutions-block__center .panel-subtitle {
    margin-left: auto;
    margin-right: auto;
    max-width: 40em;
  }

  .page-solutions-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 2.5rem;
  }

  .page-solutions-arch-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-solutions-connect__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 0 3rem;
    padding-top: 4rem;
  }
}

@media (min-width: 1024px) {
  .page-solutions-block__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .page-solutions-block__grid--reverse {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .page-solutions-block__lead-text {
    font-size: 1.0625rem;
  }
}