.page-products {
  --pf-line: 2px solid var(--ink);
  --pf-hard: 6px 6px 0 var(--ink);
  --pf-hard-sm: 4px 4px 0 var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
}

.page-products p,
.page-products h1,
.page-products h2,
.page-products h3,
.page-products ul,
.page-products ol,
.page-products dl,
.page-products dd,
.page-products figure {
  margin: 0;
}

.page-products a {
  color: inherit;
}

.page-products .pf-crumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-products .breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

.page-products .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--gravel);
}

.page-products .breadcrumbs a {
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-products .breadcrumbs a:hover,
.page-products .breadcrumbs a:focus-visible {
  border-bottom-color: var(--blue);
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  padding: clamp(24px, 5vw, 56px) 0 clamp(40px, 7vw, 84px);
  border-bottom: var(--pf-line);
}

.page-products .pf-hero__index {
  color: var(--blue);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
}

.page-products .pf-hero__title {
  font-size: clamp(2rem, 7.2vw, 4.4rem);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin-top: clamp(14px, 2.4vw, 26px);
  max-width: 20ch;
}

.page-products .pf-hero__lower {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 44px);
}

.page-products .pf-hero__lede {
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
  max-width: 62ch;
}

.page-products .pf-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--ink);
  border: var(--pf-line);
  box-shadow: var(--pf-hard-sm);
}

.page-products .pf-stats__item {
  background: var(--paper);
  padding: 14px 14px 16px;
}

.page-products .pf-stats dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--graphite);
}

.page-products .pf-stats dd {
  margin-top: 8px;
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  border-bottom: 2px solid var(--blue);
  display: inline-block;
  padding-bottom: 2px;
}

/* ---------- 主体栅格 ---------- */
.page-products .pf-body {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(64px, 9vw, 120px);
}

.page-products .pf-toc {
  border: var(--pf-line);
  padding: 16px 18px 18px;
  background: var(--paper);
}

.page-products .pf-toc__title {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--graphite);
  text-transform: uppercase;
}

.page-products .pf-toc__list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pf-toc__list a {
  display: inline-block;
  font-size: 12.5px;
  text-decoration: none;
  padding: 6px 10px;
  border: 2px solid var(--gravel);
  border-radius: var(--radius);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.page-products .pf-toc__list a:hover,
.page-products .pf-toc__list a:focus-visible {
  border-color: var(--ink);
  background: var(--mint);
}

.page-products .pf-toc__list a[aria-current="true"] {
  border-color: var(--blue);
  color: var(--blue);
  font-weight: 700;
}

.page-products .pf-main {
  display: grid;
  gap: clamp(56px, 9vw, 110px);
  min-width: 0;
}

/* ---------- 章节头 ---------- */
.page-products .pf-sec {
  min-width: 0;
}

.page-products .pf-sec__num {
  font-size: clamp(2.2rem, 7vw, 3.6rem);
  font-weight: 300;
  line-height: 0.9;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.page-products .pf-sec__title {
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  margin-top: 10px;
  max-width: 26ch;
}

.page-products .pf-sec__lede {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
  max-width: 68ch;
}

.page-products .pf-sec--night {
  background: var(--night);
  color: var(--paper);
  border: var(--pf-line);
  box-shadow: var(--pf-hard);
  padding: clamp(26px, 4.5vw, 52px);
}

.page-products .pf-sec--night .pf-sec__title {
  color: var(--paper);
}

.page-products .pf-sec--night .pf-sec__lede {
  color: rgba(250, 250, 247, 0.78);
}

.page-products .pf-sec--night a {
  color: #9dc0ff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pf-sec--panel {
  background: var(--mint);
  border: var(--pf-line);
  padding: clamp(22px, 4vw, 44px);
}

.page-products .pf-note {
  margin-top: 22px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--graphite);
  border-left: 4px solid var(--amber);
  padding-left: 14px;
  max-width: 66ch;
}

.page-products .pf-sec--panel .pf-note {
  color: var(--ink);
}

.page-products .pf-note a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

/* ---------- 图片 ---------- */
.page-products .pf-figure {
  margin-top: clamp(24px, 3.5vw, 40px);
  border: var(--pf-line);
  box-shadow: var(--pf-hard);
  background: var(--paper);
}

.page-products .pf-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 7 / 5;
}

.page-products .pf-figure--std img {
  aspect-ratio: 3 / 2;
}

.page-products .pf-figure--wide img {
  aspect-ratio: 14 / 10;
}

.page-products .pf-figure figcaption {
  font-size: 12.5px;
  color: var(--graphite);
  padding: 10px 14px 12px;
  border-top: var(--pf-line);
  line-height: 1.6;
}

.page-products .pf-sec--night .pf-figure {
  border-color: var(--paper);
  box-shadow: 6px 6px 0 rgba(250, 250, 247, 0.24);
}

.page-products .pf-sec--night .pf-figure figcaption {
  border-top-color: var(--paper);
  color: rgba(250, 250, 247, 0.75);
}

/* ---------- 九分类矩阵 ---------- */
.page-products .pf-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--ink);
  border: var(--pf-line);
  box-shadow: var(--pf-hard);
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-products .pf-matrix__cell {
  background: var(--paper);
  padding: 18px 16px 20px;
  min-width: 0;
}

.page-products .pf-matrix__cell:hover {
  background: var(--mint);
}

.page-products .pf-matrix__num {
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--blue);
  letter-spacing: 0.1em;
}

.page-products .pf-matrix__name {
  margin-top: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-products .pf-matrix__desc {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--graphite);
}

.page-products .pf-matrix__count {
  margin-top: 14px;
  font-size: 12px;
  color: var(--graphite);
  letter-spacing: 0.04em;
}

.page-products .pf-matrix__count span {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  border-bottom: 2px solid var(--grass);
  padding-bottom: 1px;
  margin-right: 4px;
}

/* ---------- 版本三段 ---------- */
.page-products .pf-versions {
  display: grid;
  gap: 2px;
  background: rgba(250, 250, 247, 0.35);
  border: 2px solid var(--paper);
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-products .pf-version {
  background: var(--night);
  padding: 22px 20px 24px;
}

.page-products .pf-version__tag {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--grass);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.page-products .pf-version__name {
  margin-top: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pf-version p {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(250, 250, 247, 0.78);
}

.page-products .pf-version--current {
  background: var(--blue);
  box-shadow: inset 0 0 0 2px var(--paper);
}

.page-products .pf-version--current .pf-version__tag {
  color: var(--peach);
}

.page-products .pf-version--current p {
  color: rgba(250, 250, 247, 0.92);
}

/* ---------- 表格 ---------- */
.page-products .pf-table-wrap {
  margin-top: clamp(22px, 3vw, 34px);
  border: 2px solid var(--paper);
  overflow: auto;
  max-height: 520px;
  background: var(--night);
}

.page-products .pf-sec--panel .pf-table-wrap {
  border: var(--pf-line);
  background: var(--paper);
  box-shadow: var(--pf-hard-sm);
}

.page-products .pf-table-wrap--tall {
  max-height: 640px;
}

.page-products .pf-vtable,
.page-products .pf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 760px;
}

.page-products .pf-table {
  min-width: 880px;
}

.page-products .pf-vtable__cap,
.page-products .pf-table__cap {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(250, 250, 247, 0.65);
}

.page-products .pf-table__cap {
  color: var(--graphite);
}

.page-products .pf-vtable thead th,
.page-products .pf-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 12px 14px;
  white-space: nowrap;
}

.page-products .pf-vtable thead th {
  background: var(--ink);
  color: var(--paper);
  border-bottom: 2px solid var(--grass);
}

.page-products .pf-table thead th {
  background: var(--blue);
  color: var(--paper);
}

.page-products .pf-vtable tbody th,
.page-products .pf-table tbody th {
  text-align: left;
  font-weight: 600;
  padding: 12px 14px;
  white-space: nowrap;
}

.page-products .pf-vtable tbody td,
.page-products .pf-table tbody td {
  padding: 12px 14px;
  white-space: nowrap;
}

.page-products .pf-vtable tbody tr:nth-child(even) {
  background: rgba(250, 250, 247, 0.06);
}

.page-products .pf-vtable tbody tr:hover {
  background: rgba(42, 168, 154, 0.22);
}

.page-products .pf-table tbody tr:nth-child(even) {
  background: rgba(216, 220, 227, 0.35);
}

.page-products .pf-table tbody tr:hover {
  background: var(--mint);
}

.page-products .pf-vtable tbody th,
.page-products .pf-vtable tbody td {
  border-bottom: 1px solid rgba(250, 250, 247, 0.18);
  color: var(--paper);
}

.page-products .pf-table tbody th,
.page-products .pf-table tbody td {
  border-bottom: 1px solid var(--gravel);
}

.page-products .pf-table__num {
  font-variant-numeric: tabular-nums;
  color: var(--blue);
}

.page-products .pf-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.page-products .pf-state::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 2px solid var(--paper);
  display: inline-block;
}

.page-products .pf-state--yes::before {
  background: var(--grass);
}

.page-products .pf-state--no {
  color: rgba(250, 250, 247, 0.55);
}

.page-products .pf-state--no::before {
  background: var(--graphite);
}

.page-products .pf-none {
  display: inline-block;
  font-size: 12.5px;
  color: var(--graphite);
  background: rgba(216, 220, 227, 0.6);
  border: 1px solid var(--gravel);
  padding: 2px 8px;
  border-radius: var(--radius);
}

.page-products .pf-check {
  width: 18px;
  height: 18px;
  accent-color: var(--blue);
  cursor: pointer;
}

/* ---------- 电脑端栏目折叠 ---------- */
.page-products .pf-cols {
  margin-top: clamp(22px, 3vw, 34px);
  border-top: var(--pf-line);
}

.page-products .pf-item {
  border-bottom: var(--pf-line);
  background: var(--paper);
}

.page-products .pf-item[open] {
  background: var(--paper);
}

.page-products .pf-item__sum {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-areas:
    "num name"
    "num layer";
  align-items: center;
  gap: 2px 0;
  padding: 16px 40px 16px 0;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.page-products .pf-item__sum::-webkit-details-marker {
  display: none;
}

.page-products .pf-item__sum::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 300;
  color: var(--blue);
  line-height: 1;
}

.page-products .pf-item[open] .pf-item__sum::after {
  content: "–";
}

.page-products .pf-item__num {
  grid-area: num;
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.page-products .pf-item__name {
  grid-area: name;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-products .pf-item__layer {
  grid-area: layer;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--graphite);
}

.page-products .pf-item__body {
  padding: 0 24px 20px 44px;
}

.page-products .pf-item__body p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 64ch;
}

.page-products .pf-item__sum:hover {
  background: var(--mint);
}

/* ---------- 场景 ---------- */
.page-products .pf-scenes {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pf-scene {
  border: var(--pf-line);
  background: var(--paper);
  padding: 20px 18px 22px;
  box-shadow: var(--pf-hard-sm);
}

.page-products .pf-scene__tag {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--ink);
  background: var(--peach);
  border: 2px solid var(--ink);
  padding: 3px 10px;
}

.page-products .pf-scene:nth-child(3n + 2) .pf-scene__tag {
  background: var(--mint);
}

.page-products .pf-scene:nth-child(3n) .pf-scene__tag {
  color: var(--paper);
  background: var(--blue);
  border-color: var(--blue);
}

.page-products .pf-scene__name {
  margin-top: 14px;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-products .pf-scene p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

/* ---------- 流程 ---------- */
.page-products .pf-flow {
  list-style: none;
  padding: 0;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  display: grid;
  gap: 2px;
  background: rgba(250, 250, 247, 0.3);
  border: 2px solid var(--paper);
}

.page-products .pf-flow__step {
  background: var(--night);
  padding: 22px 20px 24px;
  border-left: 6px solid var(--grass);
}

.page-products .pf-flow__num {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 300;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-products .pf-sec--night .pf-flow__num {
  color: #7ea2ff;
}

.page-products .pf-flow__name {
  margin-top: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pf-flow__step p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(250, 250, 247, 0.8);
}

.page-products .pf-flow__who {
  font-size: 12px !important;
  letter-spacing: 0.08em;
  color: rgba(250, 250, 247, 0.55) !important;
}

.page-products .pf-flow__foot {
  margin-top: 24px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(250, 250, 247, 0.78);
  max-width: 68ch;
}

/* ---------- 更新节奏 + CTA ---------- */
.page-products .pf-cadence {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pf-cadence__block {
  border: var(--pf-line);
  padding: 22px 18px 24px;
  background: var(--paper);
}

.page-products .pf-cadence__block:nth-child(2) {
  background: var(--mint);
}

.page-products .pf-cadence__label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-products .pf-cadence__block:nth-child(2) .pf-cadence__label {
  color: var(--graphite);
}

.page-products .pf-cadence__name {
  margin-top: 12px;
  font-size: 1.15rem;
  font-weight: 700;
}

.page-products .pf-cadence__block p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .pf-cadence__block a {
  color: var(--blue);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pf-cta {
  margin-top: clamp(26px, 4vw, 44px);
  border: var(--pf-line);
  border-left: 8px solid var(--blue);
  background: var(--paper);
  padding: clamp(22px, 3.5vw, 38px);
  display: grid;
  gap: 22px;
  box-shadow: var(--pf-hard);
}

.page-products .pf-cta__title {
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 700;
  line-height: 1.4;
  max-width: 26ch;
}

.page-products .pf-cta__text {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 64ch;
}

.page-products .pf-cta__text a {
  color: var(--blue);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pf-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pf-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .pf-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-cadence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-item__sum {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    grid-template-areas: "num name layer";
    gap: 0 16px;
    padding-right: 56px;
  }

  .page-products .pf-item__body {
    padding-left: 72px;
  }
}

@media (min-width: 900px) {
  .page-products .pf-hero__lower {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-products .pf-version {
    padding: 26px 24px 28px;
  }

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

  .page-products .pf-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-products .pf-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

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

  .page-products .pf-scene:nth-child(1) {
    grid-column: span 2;
  }

  .page-products .pf-body {
    grid-template-columns: 176px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pf-toc {
    position: sticky;
    top: clamp(72px, 14vh, 132px);
  }

  .page-products .pf-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-products .pf-toc__list a {
    display: block;
  }
}

@media (min-width: 1180px) {
  .page-products .pf-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pf-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pulse-dot {
    animation: none;
  }
}