.page-products {
  --pf-gap: clamp(52px, 7vw, 92px);
  --pf-cut: 12px;
}

.page-products .product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 24px;
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-products .product-body {
  min-width: 0;
}

/* ---------- 左侧编号目录 ---------- */
.page-products .product-index {
  min-width: 0;
}

.page-products .product-index__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-products .product-index__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-products .product-index__list li {
  flex: 0 0 auto;
}

.page-products .product-index__list a {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 12px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink-blue);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .product-index__list a:hover,
.page-products .product-index__list a:focus-visible {
  color: var(--clay);
  border-bottom-color: var(--amber);
}

.page-products .product-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
}

/* ---------- 首屏 ---------- */
.page-products .product-hero {
  padding-top: 8px;
  margin-bottom: var(--pf-gap);
}

.page-products .product-hero .eyebrow {
  margin: 0 0 18px;
}

.page-products .product-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--ink-blue);
  max-width: 15em;
}

.page-products .product-hero__lede {
  max-width: 44em;
  margin: 0 0 26px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text);
}

.page-products .product-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.page-products .compare-panel {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.page-products .compare-switch,
.page-products .diff-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .filter-btn {
  font-family: var(--font-sans);
  font-size: 13.5px;
  padding: 7px 15px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-blue);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-products .filter-btn:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
}

.page-products .filter-btn[aria-pressed="true"] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-deep);
  font-weight: 600;
}

.page-products .filter-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--rock);
  letter-spacing: .04em;
}

.page-products .hero-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .version-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  background: rgba(255, 255, 255, .5);
}

.page-products .version-card--beta {
  border-top-color: var(--amber);
  background: rgba(208, 138, 44, .07);
}

.page-products .version-card__tag {
  display: inline-block;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
}

.page-products .version-card--stable .version-card__tag {
  background: rgba(110, 138, 153, .16);
  color: var(--ink-blue);
}

.page-products .version-card--beta .version-card__tag {
  background: var(--amber);
  color: var(--ink-deep);
}

.page-products .version-card__title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 21px;
  line-height: 1.45;
  color: var(--ink-blue);
}

.page-products .version-card__facts {
  margin: 0;
}

.page-products .version-card__fact {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-top: 1px dashed var(--line);
}

.page-products .version-card__fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--rock);
  letter-spacing: .04em;
}

.page-products .version-card__fact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.68;
  color: var(--text);
}

/* ---------- 图版 ---------- */
.page-products .pf-plate {
  margin: 0 0 var(--pf-gap);
}

.page-products .media-frame {
  overflow: hidden;
  background: rgba(22, 40, 60, .06);
  clip-path: polygon(0 0, calc(100% - var(--pf-cut)) 0, 100% var(--pf-cut), 100% 100%, 0 100%);
}

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

.page-products .media-caption {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 通用区块与页头 ---------- */
.page-products .pf-section {
  margin-bottom: var(--pf-gap);
}

.page-products .pf-head {
  max-width: 42em;
  margin-bottom: 28px;
}

.page-products .pf-head__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--clay);
}

.page-products .pf-head__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.32;
  color: var(--ink-blue);
}

.page-products .pf-head__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--text);
}

/* ---------- 深色分区 ---------- */
.page-products .pf-dark {
  background: var(--ink-blue);
  color: var(--paper);
  padding: clamp(34px, 5vw, 58px) clamp(20px, 4vw, 44px);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-products .pf-dark .pf-head__num {
  color: var(--amber-soft);
}

.page-products .pf-dark .pf-head__title,
.page-products .pf-dark h2 {
  color: var(--paper);
}

.page-products .pf-dark .pf-head__lede,
.page-products .pf-dark p {
  color: rgba(247, 242, 232, .82);
}

.page-products .pf-dark .btn--ghost {
  color: var(--paper);
  border-color: rgba(247, 242, 232, .42);
}

.page-products .pf-dark .btn--ghost:hover {
  color: var(--amber-soft);
  border-color: var(--amber-soft);
}

/* ---------- 02 差异列表 ---------- */
.page-products .diff-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-products .diff-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .diff-item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-products .diff-item__code {
  align-self: start;
  padding-left: 9px;
  border-left: 2px solid var(--clay);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--clay);
}

.page-products .diff-item__main {
  min-width: 0;
}

.page-products .diff-item__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-blue);
}

.page-products .diff-item__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-products .diff-item__col {
  padding: 10px 14px;
  background: rgba(22, 40, 60, .035);
  border-left: 2px solid var(--steel);
}

.page-products .diff-item__col--beta {
  background: rgba(208, 138, 44, .09);
  border-left-color: var(--amber);
}

.page-products .diff-item__col p {
  margin: 5px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .diff-item__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--rock);
}

.page-products .diff-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--rock);
}

.page-products .diff-item__stamp {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--moss);
}

.page-products .diff-side {
  min-width: 0;
}

.page-products .diff-side__note {
  margin-top: 20px;
  padding: 16px 18px;
  border-left: 2px solid var(--amber);
  background: rgba(208, 138, 44, .07);
}

.page-products .diff-side__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink-blue);
}

.page-products .diff-side__note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text);
}

/* ---------- 03 通道年度图 ---------- */
.page-products .channel-chart {
  display: block;
  width: 100%;
  height: auto;
  margin: 4px 0 26px;
  overflow: visible;
}

.page-products .chart-axis {
  stroke: rgba(247, 242, 232, .28);
  stroke-width: 1.5;
}

.page-products .chart-stem {
  stroke: rgba(247, 242, 232, .24);
  stroke-width: 1.5;
  stroke-dasharray: 4 5;
}

.page-products .chart-dot {
  fill: var(--ink-blue);
  stroke: var(--amber-soft);
  stroke-width: 2.5;
}

.page-products .chart-node--current .chart-dot {
  fill: var(--amber);
  stroke: var(--amber-soft);
  stroke-width: 3.5;
}

.page-products .chart-label {
  fill: var(--amber-soft);
  font-family: var(--font-sans);
  font-size: 13px;
}

.page-products .chart-year {
  fill: rgba(247, 242, 232, .78);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .08em;
}

.page-products .channel-notes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(247, 242, 232, .18);
  margin-bottom: 30px;
}

.page-products .channel-note {
  padding: 18px 20px;
  background: var(--ink-blue);
}

.page-products .channel-note__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber-soft);
}

.page-products .channel-note__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 242, 232, .84);
}

.page-products .channel-figure {
  margin: 0;
}

/* ---------- 04 收藏 ---------- */
.page-products .fav-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-products .fav-panel {
  padding: clamp(16px, 3vw, 26px);
  background: rgba(22, 40, 60, .045);
  clip-path: polygon(0 0, calc(100% - var(--pf-cut)) 0, 100% var(--pf-cut), 100% 100%, 0 100%);
}

.page-products .fav-slots {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .fav-slot {
  display: flex;
  flex-direction: column;
  gap: 5px;
  height: 100%;
  padding: 13px 13px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: transform .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .fav-slot:hover,
.page-products .fav-slot:focus-visible {
  transform: translateY(-2px);
  border-color: var(--amber);
  background: rgba(242, 200, 121, .22);
}

.page-products .fav-slot__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--rock);
}

.page-products .fav-slot__name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.4;
  color: var(--ink-blue);
}

.page-products .fav-slot__desc {
  font-size: 13px;
  line-height: 1.62;
  color: var(--rock);
}

.page-products .fav-side {
  min-width: 0;
}

.page-products .fav-side__note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--steel);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text);
}

/* ---------- 05 场景标签 ---------- */
.page-products .pf-warm {
  background: rgba(242, 200, 121, .22);
  padding: clamp(30px, 5vw, 52px) clamp(20px, 4vw, 44px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-products .scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.page-products .scenario-tags .tag {
  font-size: 13.5px;
  padding: 7px 14px;
  background: var(--paper);
  border: 1px solid rgba(22, 40, 60, .14);
  color: var(--ink-blue);
}

.page-products .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-products .step {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--paper);
  border-top: 3px solid var(--amber);
}

.page-products .step__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--clay);
}

.page-products .step__title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-blue);
}

.page-products .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-products .scenario-figure {
  margin: 0;
}

/* ---------- 06 兼容要求 ---------- */
.page-products .compat-table {
  border-top: 1px solid var(--line);
}

.page-products .compat-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .compat-row__key {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-products .compat-row__val {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-blue);
}

.page-products .compat-row__note {
  grid-column: 1 / -1;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
  transition: max-height .22s var(--ease), opacity .22s var(--ease), padding-top .22s var(--ease);
}

.page-products .compat-row:hover .compat-row__note,
.page-products .compat-row:focus-within .compat-row__note {
  max-height: 96px;
  opacity: 1;
  padding-top: 6px;
}

/* ---------- 07 下一步 ---------- */
.page-products .pf-next {
  text-align: left;
}

.page-products .pf-next__lede {
  max-width: 40em;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.82;
}

.page-products .pf-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.page-products .pf-next__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.85;
  letter-spacing: .02em;
  color: rgba(247, 242, 232, .62);
}

/* ---------- 交互辅助 ---------- */
.page-products [data-filter-item].is-hidden {
  display: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .fav-slots {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-products .hero-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .diff-item {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 20px;
  }

  .page-products .diff-item__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .channel-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .compat-row {
    grid-template-columns: 122px minmax(0, 1fr);
    gap: 6px 22px;
    align-items: baseline;
  }
}

@media (max-width: 719px) {
  .page-products .compat-row__note {
    max-height: none;
    opacity: 1;
    padding-top: 4px;
  }
}

@media (min-width: 1000px) {
  .page-products .product-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 0 52px;
    padding-top: 34px;
  }

  .page-products .product-index {
    position: sticky;
    top: 92px;
    align-self: start;
    padding-top: 6px;
  }

  .page-products .product-index__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--line);
  }

  .page-products .product-index__list li {
    display: block;
  }

  .page-products .product-index__list a {
    margin-left: -1px;
    padding: 9px 0 9px 14px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    white-space: normal;
  }

  .page-products .product-index__list a:hover,
  .page-products .product-index__list a:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--amber);
  }

  .page-products .diff-body {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .fav-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
}