.page-products {
  --pf-radius: var(--radius);
  --pf-hair: 1px solid var(--c-line);
}

/* 面包屑 */
.page-products .pf-crumb {
  padding-top: clamp(14px, 2vw, 22px);
  padding-bottom: 4px;
}

/* 首屏 */
.page-products .pf-hero-wrap {
  background:
    radial-gradient(120% 150% at 86% -10%, rgba(0, 229, 208, .16), transparent 58%),
    radial-gradient(90% 120% at 4% 110%, rgba(255, 90, 43, .10), transparent 60%),
    linear-gradient(180deg, var(--c-panel) 0%, var(--c-void) 100%);
  border-bottom: var(--pf-hair);
}

.page-products .pf-hero {
  padding-block: clamp(28px, 5vw, 62px) clamp(30px, 4vw, 54px);
}

.page-products .pf-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  max-width: 20ch;
}

.page-products .pf-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.75;
  color: var(--c-ink);
  opacity: .88;
}

.page-products .pf-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-stat {
  border-top: 2px solid var(--c-cyan);
  padding-top: 10px;
}

.page-products .pf-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 700;
  color: var(--c-cyan);
  line-height: 1.1;
}

.page-products .pf-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--c-mute);
  letter-spacing: .01em;
}

/* 区块骨架 */
.page-products .pf-section {
  padding-block: clamp(44px, 6vw, 86px);
  border-bottom: var(--pf-hair);
}

.page-products .pf-section__head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(24px, 3.5vw, 44px);
}

.page-products .pf-section__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  max-width: 24ch;
}

.page-products .pf-section__intro {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-mute);
}

/* 能力总览：非对称网格 */
.page-products .pf-caps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .pf-cap {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: var(--c-panel);
  border: var(--pf-hair);
  border-radius: var(--pf-radius);
  transition: background-color .22s var(--ease), border-color .22s var(--ease);
}

.page-products .pf-cap:hover,
.page-products .pf-cap:focus-within {
  background: var(--c-panel-hi);
  border-color: var(--c-cyan);
}

.page-products .pf-cap__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}

.page-products .pf-cap__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2vw, 23px);
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-products .pf-cap__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mute);
  max-width: 44ch;
}

.page-products .pf-cap__arrow {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-mute);
  transition: transform .22s var(--ease), color .22s var(--ease);
}

.page-products .pf-cap:hover .pf-cap__arrow,
.page-products .pf-cap:focus-within .pf-cap__arrow {
  transform: translateX(4px);
  color: var(--c-flame);
}

/* 左右分屏 */
.page-products .pf-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-products .pf-split__note {
  min-width: 0;
}

.page-products .pf-figure {
  margin: 0;
  min-width: 0;
}

.page-products .pf-figure .media__frame,
.page-products .pf-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--pf-hair);
  border-radius: var(--pf-radius);
  object-fit: cover;
}

.page-products .pf-figure figcaption,
.page-products .pf-table__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-mute);
  text-align: left;
}

/* 步骤 */
.page-products .pf-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
  counter-reset: pfstep;
}

.page-products .pf-step {
  border-left: 2px solid var(--c-cyan);
  padding-left: 16px;
}

.page-products .pf-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}

.page-products .pf-step__title {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  color: var(--c-ink);
  letter-spacing: -0.01em;
}

.page-products .pf-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-mute);
  max-width: 46ch;
}

.page-products .pf-inline-link {
  margin: 20px 0 0;
  font-size: 15px;
}

.page-products .pf-inline-link a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .pf-inline-link a:hover,
.page-products .pf-inline-link a:focus-visible {
  color: var(--c-cyan-soft);
  border-bottom-color: var(--c-cyan);
}

/* 三个维度 */
.page-products .pf-dims {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .pf-dim {
  padding: 16px 18px;
  background: var(--c-panel);
  border: var(--pf-hair);
  border-left: 3px solid var(--c-cyan-soft);
}

.page-products .pf-dim:nth-child(2) {
  border-left-color: var(--c-amber);
}

.page-products .pf-dim:nth-child(3) {
  border-left-color: var(--c-flame);
}

.page-products .pf-dim__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--c-ink);
}

.page-products .pf-dim p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--c-mute);
}

/* 要点列表 */
.page-products .pf-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .pf-fact {
  position: relative;
  padding: 14px 18px 14px 22px;
  background: var(--c-panel);
  border: var(--pf-hair);
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-mute);
}

.page-products .pf-fact::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 20px;
  width: 6px;
  height: 6px;
  background: var(--c-cyan);
  border-radius: 50%;
}

.page-products .pf-fact strong {
  color: var(--c-ink);
  font-weight: 600;
}

/* 轨道块容器 */
.page-products .pf-rail {
  margin: 0 0 clamp(26px, 3.5vw, 44px);
}

/* 版本对比表 */
.page-products .pf-table-wrap {
  overflow-x: auto;
  border: var(--pf-hair);
  border-radius: var(--pf-radius);
  background: var(--c-panel);
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-products .pf-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pf-table__caption {
  caption-side: bottom;
  padding: 12px 16px 15px;
  text-align: left;
}

.page-products .pf-table th,
.page-products .pf-table td {
  border-bottom: var(--pf-hair);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.page-products .pf-table tbody tr:last-child th,
.page-products .pf-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pf-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-mute);
  background: var(--c-void);
  white-space: nowrap;
}

.page-products .pf-table tbody th {
  width: 26%;
  color: var(--c-mute);
  font-weight: 500;
  white-space: nowrap;
}

.page-products .pf-table tbody td {
  color: var(--c-ink);
  opacity: .88;
}

.page-products .pf-table__hi {
  color: var(--c-cyan) !important;
  opacity: 1 !important;
  font-family: var(--font-mono);
  font-weight: 700;
}

/* 层级阶梯 */
.page-products .pf-compare {
  display: grid;
  gap: 16px;
}

.page-products .pf-ladder {
  background: var(--c-panel);
  border: var(--pf-hair);
  border-top: 3px solid var(--c-cyan);
  padding: 18px 20px 22px;
  border-radius: var(--pf-radius);
}

.page-products .pf-ladder--full {
  border-top-color: var(--c-flame);
}

.page-products .pf-ladder__summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--c-ink);
  letter-spacing: -0.01em;
  padding: 4px 0;
}

.page-products .pf-ladder__summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-products .pf-ladder__list {
  list-style: none;
  counter-reset: pflevel;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pf-ladder__item {
  counter-increment: pflevel;
  position: relative;
  padding: 10px 12px 10px 40px;
  background: var(--c-void);
  border-left: 2px solid var(--c-cyan);
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mute);
  font-family: var(--font-mono);
}

.page-products .pf-ladder--full .pf-ladder__item {
  border-left-color: var(--c-flame);
}

.page-products .pf-ladder__item::before {
  content: counter(pflevel);
  position: absolute;
  left: 12px;
  top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-cyan);
}

.page-products .pf-ladder--full .pf-ladder__item::before {
  color: var(--c-flame);
}

.page-products .pf-ladder__item:nth-child(2) { margin-left: 12px; }
.page-products .pf-ladder__item:nth-child(3) { margin-left: 24px; }
.page-products .pf-ladder__item:nth-child(4) { margin-left: 36px; }

/* 场景卡 */
.page-products .pf-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .pf-scene {
  background: var(--c-panel);
  border: var(--pf-hair);
  border-top: 3px solid var(--c-cyan);
  border-radius: var(--pf-radius);
  padding: 20px;
  transition: background-color .22s var(--ease), border-color .22s var(--ease);
}

.page-products .pf-scene:nth-child(2) { border-top-color: var(--c-amber); }
.page-products .pf-scene:nth-child(3) { border-top-color: var(--c-flame); }

.page-products .pf-scene:hover,
.page-products .pf-scene:focus-within {
  background: var(--c-panel-hi);
}

.page-products .pf-scene__summary {
  cursor: pointer;
  display: grid;
  gap: 10px;
  list-style: none;
}

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

.page-products .pf-scene__summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-products .pf-scene__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
  color: var(--c-ink);
  letter-spacing: -0.01em;
}

.page-products .pf-scene__steps {
  margin: 16px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mute);
}

/* 接入说明 */
.page-products .pf-handoff {
  margin-top: clamp(30px, 4vw, 52px);
  padding: clamp(24px, 3.4vw, 40px);
  background:
    linear-gradient(120deg, rgba(0, 229, 208, .12), transparent 62%),
    var(--c-panel);
  border: var(--pf-hair);
  border-left: 4px solid var(--c-flame);
  border-radius: var(--pf-radius);
}

.page-products .pf-handoff__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

.page-products .pf-handoff__body {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mute);
}

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

/* 桌面栅格 */
@media (min-width: 720px) {
  .page-products .pf-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px 22px;
  }

  .page-products .pf-caps {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .pf-cap--7,
  .page-products .pf-cap--5 {
    grid-column: span 6;
  }

  .page-products .pf-section__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 24px;
  }

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

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

@media (min-width: 900px) {
  .page-products .pf-split {
    grid-template-columns: 7fr 5fr;
    gap: clamp(26px, 4vw, 56px);
  }

  .page-products .pf-split--flip {
    grid-template-columns: 5fr 7fr;
  }

  .page-products .pf-split__figure {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1040px) {
  .page-products .pf-cap--7 { grid-column: span 7; }
  .page-products .pf-cap--5 { grid-column: span 5; }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-cap,
  .page-products .pf-cap__arrow,
  .page-products .pf-scene,
  .page-products .pf-inline-link a {
    transition: none;
  }
}