.page-products {
  --solutions-toc-w: 220px;
  --solutions-related-w: 200px;
  --solutions-gap: 28px;
  background: var(--color-sand);
  color: var(--color-ink);
}

/* ===== Hero 区 ===== */
.page-products .solutions-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-dark);
  color: var(--color-white);
  padding: 36px 0 0;
}
.page-products .solutions-hero-inner {
  position: relative;
  padding-bottom: 0;
}
.page-products .hero-decor {
  position: absolute;
  right: 0;
  top: 0;
  width: 34%;
  height: 260px;
  background: linear-gradient(135deg, transparent 70%, rgba(217, 168, 68, 0.16) 70%);
  pointer-events: none;
}
.page-products .solutions-hero .breadcrumb {
  margin-bottom: 30px;
}
.page-products .solutions-hero .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
}
.page-products .solutions-hero .breadcrumb li {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}
.page-products .solutions-hero .breadcrumb li + li::before {
  content: "/";
  margin: 0 7px;
  color: rgba(255, 255, 255, 0.3);
}
.page-products .solutions-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}
.page-products .solutions-hero .breadcrumb a:hover {
  color: var(--color-gold);
}
.page-products .solutions-hero .breadcrumb [aria-current="page"] {
  color: var(--color-gold);
}
.page-products .solutions-hero-grid {
  display: grid;
  gap: 24px;
}
.page-products .solutions-hero-copy {
  max-width: 780px;
}
.page-products .solutions-hero .exhibit-label {
  color: var(--color-gold);
}
.page-products .solutions-hero .page-title {
  margin: 12px 0 12px;
  color: var(--color-white);
  font-family: var(--font-serif);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 900;
  line-height: 1.2;
}
.page-products .solutions-hero .page-title span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.42em;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  margin-top: 8px;
}
.page-products .solutions-hero .section-sub {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  line-height: 1.8;
  max-width: 62ch;
}
.page-products .solutions-hero-figure {
  margin: 32px 0 0;
  padding: 0;
  border: 0;
  background: none;
}
.page-products .solutions-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===== 三列主体 ===== */
.page-products .solutions-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-top: 44px;
  padding-bottom: 80px;
  align-items: start;
}

/* ===== TOC ===== */
.page-products .solutions-toc {
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .solutions-toc .exhibit-label {
  margin-bottom: 14px;
}
.page-products .solutions-toc ul {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.page-products .solutions-toc .toc-link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 0;
  text-decoration: none;
  color: var(--color-ink);
  font-size: 14px;
  border-bottom: 1px dashed var(--color-metal);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-products .solutions-toc .toc-link span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-rock);
}
.page-products .solutions-toc .toc-link:hover {
  color: var(--color-blue);
  border-bottom-color: var(--color-blue);
}
.page-products .solutions-toc .toc-link.is-active {
  color: var(--color-blue);
  border-bottom-color: var(--color-blue);
}
.page-products .solutions-toc .toc-link.is-active span {
  color: var(--color-blue);
}
.page-products .solutions-toc-cta {
  width: 100%;
  margin-top: 4px;
  text-align: center;
  border-radius: 0;
}

/* ===== 主内容区 ===== */
.page-products .solutions-main {
  min-width: 0;
  display: grid;
  gap: 56px;
}
.page-products .solutions-exhibit {
  margin: 0;
  padding: 0;
  scroll-margin-top: 28px;
}
.page-products .exhibit-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}
.page-products .exhibit-num {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.4;
  color: var(--color-gold-dark);
  padding-top: 4px;
}
.page-products .section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-ink);
}
.page-products .section-sub {
  margin: 8px 0 24px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-rock);
}

/* ===== 平台标签页 ===== */
.page-products .platform-tabs {
  position: relative;
}
.page-products .platform-radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  margin: 0;
}
.page-products .platform-labels {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--color-metal);
}
.page-products .platform-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--color-rock);
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 0;
  user-select: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.page-products .platform-label svg {
  display: block;
  flex: 0 0 auto;
}
.page-products .platform-label:hover {
  color: var(--color-blue);
  background: var(--color-gold-bright);
}
.page-products .platform-panel {
  display: none;
}
.page-products #tab-ios:checked ~ .platform-labels label[for="tab-ios"],
.page-products #tab-android:checked ~ .platform-labels label[for="tab-android"],
.page-products #tab-web:checked ~ .platform-labels label[for="tab-web"] {
  color: var(--color-white);
  background: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
}
.page-products #tab-ios:checked ~ #panel-ios,
.page-products #tab-android:checked ~ #panel-android,
.page-products #tab-web:checked ~ #panel-web {
  display: block;
  animation: products-tab-fade 0.25s ease;
}
@keyframes products-tab-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 键盘焦点 */
.page-products #tab-ios:focus-visible ~ .platform-labels label[for="tab-ios"],
.page-products #tab-android:focus-visible ~ .platform-labels label[for="tab-android"],
.page-products #tab-web:focus-visible ~ .platform-labels label[for="tab-web"] {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* ===== 平台卡片 ===== */
.page-products .platform-card {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  padding: 18px;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .platform-figure {
  margin: 0;
  border: 1px solid var(--color-metal);
  background: var(--color-gold-bright);
}
.page-products .platform-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-products .platform-body {
  min-width: 0;
}
.page-products .platform-name {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 900;
  color: var(--color-ink);
}
.page-products .platform-desc {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-ink);
}
.page-products .platform-meta {
  margin: 0;
  display: grid;
  gap: 6px;
}
.page-products .platform-meta div {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 8px;
  font-size: 13px;
}
.page-products .platform-meta dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-rock);
}
.page-products .platform-meta dd {
  margin: 0;
  color: var(--color-ink);
}

/* ===== 表格 ===== */
.page-products .table-wrap {
  margin-top: 18px;
  border: 1px solid var(--color-metal);
  overflow-x: auto;
  background: var(--color-white);
}
.page-products .table-wrap--condensed {
  margin-top: 14px;
}
.page-products .table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--color-white);
}
.page-products .table caption {
  text-align: left;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-rock);
  background: var(--color-sand);
  border-bottom: 1px solid var(--color-metal);
}
.page-products .table th,
.page-products .table td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--color-metal);
  white-space: nowrap;
}
.page-products .table th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-rock);
  background: var(--color-sand);
}
.page-products .table tbody th {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-ink);
  background: transparent;
}
.page-products .table tbody tr {
  transition: background 0.2s ease;
}
.page-products .table tbody tr:last-child td,
.page-products .table tbody tr:last-child th {
  border-bottom: 0;
}
.page-products .table tbody tr:hover {
  background: var(--color-gold-bright);
}
.page-products .table tbody tr:hover th {
  background: var(--color-gold-bright);
}

/* ===== 状态徽标 ===== */
.page-products .state {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  border: 1px solid;
  white-space: nowrap;
}
.page-products .state--full {
  color: var(--color-blue-dark);
  border-color: rgba(27, 111, 174, 0.35);
  background: rgba(27, 111, 174, 0.08);
}
.page-products .state--partial {
  color: var(--color-gold-dark);
  border-color: rgba(217, 168, 68, 0.45);
  background: rgba(217, 168, 68, 0.12);
}
.page-products .state--none {
  color: var(--color-rock);
  border-color: var(--color-metal);
  background: rgba(110, 110, 118, 0.08);
}
.page-products .table--overview th:first-child {
  min-width: 130px;
}

/* ===== 图例 ===== */
.page-products .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
}
.page-products .legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-rock);
}
.page-products .legend-item::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 1px solid var(--color-metal);
  background: var(--color-white);
}
.page-products .legend-item--full::before {
  background: rgba(27, 111, 174, 0.25);
  border-color: var(--color-blue);
}
.page-products .legend-item--partial::before {
  background: var(--color-gold);
  border-color: var(--color-gold-dark);
}
.page-products .legend-item--none::before {
  background: var(--color-metal);
  border-color: var(--color-rock);
}

/* ===== 版本支持策略 ===== */
.page-products .version-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
.page-products .version-card {
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
  border-top: 3px solid var(--color-gold);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.page-products .version-card:hover {
  border-color: var(--color-blue);
  transform: translateY(-2px);
}
.page-products .version-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 900;
  color: var(--color-ink);
}
.page-products .version-min {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--color-rock);
}
.page-products .version-min strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--color-ink);
  margin-top: 2px;
}
.page-products .version-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-rock);
}
.page-products .support-bars {
  margin-top: 36px;
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .support-row {
  display: grid;
  grid-template-columns: 96px 1fr 92px;
  align-items: center;
  gap: 12px;
  padding: 7px 0;
}
.page-products .support-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink);
}
.page-products .support-track {
  display: block;
  position: relative;
  height: 12px;
  background: var(--color-sand);
  border: 1px solid var(--color-metal);
}
.page-products .bar {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  display: block;
  height: 100%;
}
.page-products .bar--full { background: var(--color-blue); }
.page-products .bar--high { background: var(--color-gold); }
.page-products .bar--mid { background: var(--color-rock); }
.page-products .support-state {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-rock);
  text-align: right;
}

/* ===== 更新节奏 ===== */
.page-products .update-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}
.page-products .update-data {
  display: grid;
  gap: 14px;
}
.page-products .stat-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.page-products .stat {
  padding: 16px 10px;
  text-align: center;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-blue-dark);
}
.page-products .stat-label {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--color-rock);
}
.page-products .update-detail {
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .update-detail summary {
  position: relative;
  padding: 13px 44px 13px 16px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-ink);
  transition: color 0.2s ease, background 0.2s ease;
}
.page-products .update-detail summary::-webkit-details-marker {
  display: none;
}
.page-products .update-detail summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-blue);
}
.page-products .update-detail[open] summary {
  color: var(--color-blue-dark);
  background: var(--color-sand);
}
.page-products .update-detail[open] summary::after {
  content: "–";
}
.page-products .faq-body {
  padding: 0 16px 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-rock);
}
.page-products .update-figure {
  margin: 0;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .update-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 500 / 260;
  object-fit: cover;
}

/* ===== 适配优化建议 ===== */
.page-products .advice-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .advice-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 18px;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
  border-left: 3px solid var(--color-gold);
  transition: border-color 0.2s ease;
}
.page-products .advice-list li:hover {
  border-color: var(--color-blue);
  border-left-color: var(--color-blue);
}
.page-products .advice-no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-gold-dark);
  padding-top: 2px;
}
.page-products .advice-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 900;
  color: var(--color-ink);
}
.page-products .advice-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-rock);
}

/* ===== 右侧相关 ===== */
.page-products .solutions-related {
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-metal);
}
.page-products .solutions-related .exhibit-label {
  margin-bottom: 12px;
}
.page-products .related-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-products .related-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-metal);
}
.page-products .related-list li:last-child {
  border-bottom: 0;
}
.page-products .related-list a {
  display: block;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-ink);
  text-decoration: none;
}
.page-products .related-list a::before {
  content: "→ ";
  color: var(--color-blue);
}
.page-products .related-list a:hover {
  color: var(--color-blue);
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-products .solutions-hero {
    padding-top: 44px;
  }
  .page-products .solutions-hero-grid {
    grid-template-columns: 1fr;
  }
  .page-products .platform-card {
    grid-template-columns: 300px 1fr;
  }
  .page-products .version-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .update-layout {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
  .page-products .update-figure {
    position: sticky;
    top: 24px;
  }
}

@media (min-width: 768px) {
  .page-products .solutions-shell {
    grid-template-columns: 190px 1fr;
    gap: 28px;
  }
  .page-products .solutions-toc {
    position: sticky;
    top: 24px;
  }
}

@media (min-width: 1080px) {
  .page-products .solutions-shell {
    grid-template-columns: var(--solutions-toc-w) minmax(0, 1fr) var(--solutions-related-w);
    gap: var(--solutions-gap);
  }
  .page-products .solutions-related {
    position: sticky;
    top: 24px;
  }
  .page-products .solutions-hero-grid {
    grid-template-columns: 1fr 0.9fr;
    align-items: end;
  }
  .page-products .solutions-hero-figure {
    margin-top: 40px;
  }
}