.page-products {
  --pp-num: clamp(52px, 11vw, 120px);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}
.page-products .breadcrumb__item {
  color: var(--slate);
  text-decoration: none;
}
.page-products .breadcrumb__item:last-child {
  color: var(--amber);
}
.page-products .breadcrumb a.breadcrumb__item:hover {
  color: var(--sun);
}
.page-products .breadcrumb__sep {
  color: var(--edge);
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 64px;
}
.page-products .dl-hero .halo {
  --halo-size: 460px;
  top: -140px;
  right: -160px;
  opacity: 0.45;
  pointer-events: none;
}
.page-products .dl-hero__grid {
  position: relative;
  display: grid;
  gap: 40px;
}
.page-products .dl-hero__title {
  margin: 14px 0 0;
  font-size: clamp(36px, 6.6vw, 76px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
}
.page-products .dl-hero__lede {
  margin-top: 20px;
  max-width: 34em;
}
.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-products .dl-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  color: var(--slate);
  font-size: 15px;
}
.page-products .dl-hero__facts strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--halo);
  letter-spacing: 0.02em;
}
.page-products .dl-hero__media {
  margin: 0;
}
.page-products .dl-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通用节内标题 ---------- */
.page-products .section__head {
  max-width: var(--narrow);
  margin-bottom: 40px;
}
.page-products .section__head .h2 {
  margin: 10px 0 14px;
}

/* ---------- 版本选择 ---------- */
.page-products .ver-tabs,
.page-products .spec-tabs {
  display: grid;
  gap: 28px;
}
.page-products .ver-tabs .tablist,
.page-products .spec-tabs .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 0;
}
.page-products .ver-tabs .tab,
.page-products .spec-tabs .tab {
  appearance: none;
  border: 2px solid var(--edge);
  background: var(--deep);
  color: var(--halo);
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  padding: 12px 20px;
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease), transform 160ms var(--ease);
}
.page-products .ver-tabs .tab:hover,
.page-products .spec-tabs .tab:hover {
  border-color: var(--sun);
}
.page-products .ver-tabs .tab[aria-selected="true"],
.page-products .spec-tabs .tab[aria-selected="true"] {
  background: var(--sun);
  border-color: var(--sun);
  color: var(--space);
}
.page-products .ver-tabs .tab:focus-visible,
.page-products .spec-tabs .tab:focus-visible {
  outline: 2px solid var(--sun);
  outline-offset: 3px;
}
.page-products .ver-panel[hidden],
.page-products .spec-panel[hidden] {
  display: none;
}
.page-products .ver-panel__lead {
  max-width: 40em;
  margin: 0 0 22px;
  color: var(--halo);
  font-size: 17px;
  line-height: 1.8;
}
.page-products .ver-panel .plate {
  display: grid;
  gap: 0;
}
.page-products .plate__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 20px;
  border-bottom: 2px solid var(--edge);
}
.page-products .plate__row:last-child {
  border-bottom: 0;
}
.page-products .plate__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}
.page-products .plate__val {
  font-size: 16px;
  line-height: 1.7;
  color: var(--halo);
}

/* ---------- 三步走 ---------- */
.page-products .steps__figure {
  margin: 0 0 44px;
}
.page-products .steps__figure img,
.page-products .specs__figure img,
.page-products .migrate__figure img,
.page-products .spec-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .steps {
  display: grid;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.page-products .steps__item {
  position: relative;
  border: 2px solid var(--edge);
  background: var(--deep);
  padding: 26px 22px 22px;
  box-shadow: var(--shadow-hard);
}
.page-products .steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--sun);
  margin-bottom: 10px;
}
.page-products .steps__item .h3 {
  margin: 0 0 12px;
}
.page-products .steps__item p {
  margin: 0 0 12px;
  line-height: 1.75;
}
.page-products .steps__pitfall {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--dawn);
  color: var(--slate);
  font-size: 15px;
}

/* ---------- 换设备 ---------- */
.page-products .migrate {
  display: grid;
  gap: 40px;
}
.page-products .migrate__copy .h2 {
  margin: 10px 0 16px;
}
.page-products .migrate__copy .lede {
  margin-bottom: 28px;
}
.page-products .migrate__figure {
  margin: 0;
}
.page-products .acc-group {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--edge);
}
.page-products .acc {
  border-bottom: 2px solid var(--edge);
  background: transparent;
}
.page-products .acc__summary {
  cursor: pointer;
  padding: 18px 4px;
  font-weight: 700;
  font-size: 17px;
  color: var(--halo);
  list-style: none;
}
.page-products .acc__summary::-webkit-details-marker {
  display: none;
}
.page-products .acc__summary::before {
  content: "＋";
  display: inline-block;
  width: 22px;
  font-family: var(--font-mono);
  color: var(--sun);
  transition: transform 160ms var(--ease);
}
.page-products .acc[open] > .acc__summary::before {
  content: "－";
}
.page-products .acc__summary:focus-visible {
  outline: 2px solid var(--sun);
  outline-offset: 2px;
}
.page-products .acc__body {
  padding: 0 4px 20px 26px;
  color: var(--slate);
  font-size: 16px;
  line-height: 1.8;
}
.page-products .acc__body p {
  margin: 0;
}

/* ---------- 配置对照 ---------- */
.page-products .specs__figure {
  margin: 0 0 40px;
}
.page-products .spec__table {
  width: 100%;
  border-collapse: collapse;
  border: 2px solid var(--edge);
  background: var(--deep);
}
.page-products .spec__table th,
.page-products .spec__table td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--edge);
  vertical-align: top;
}
.page-products .spec__table tr:last-child th,
.page-products .spec__table tr:last-child td {
  border-bottom: 0;
}
.page-products .spec__table th {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--amber);
  width: 38%;
}
.page-products .spec__table td {
  font-size: 16px;
  line-height: 1.6;
  color: var(--halo);
}
.page-products .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  vertical-align: middle;
  border-radius: 50%;
}
.page-products .dot--mint {
  background: var(--mint);
}
.page-products .dot--dawn {
  background: var(--dawn);
}
.page-products .spec__hint {
  margin: 16px 0 0;
  color: var(--slate);
  font-size: 15px;
}
.page-products .spec-card__figure {
  margin: 44px 0 0;
  max-width: 380px;
}

/* ---------- 版本迭代 ---------- */
.page-products .acc-group--log {
  border-top: 2px solid var(--edge);
}
.page-products .log {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-products .log__item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--edge);
}
.page-products .log__item:last-child {
  border-bottom: 0;
}
.page-products .log__ver {
  color: var(--sun);
  font-size: 15px;
  font-weight: 700;
}
.page-products .log__text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--halo);
}
.page-products .log__more {
  margin-top: 28px;
  color: var(--slate);
  font-size: 16px;
  line-height: 1.8;
}
.page-products .log__more a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-products .log__more a:hover {
  color: var(--sun);
}

/* ---------- 下一步 ---------- */
.page-products .next {
  display: grid;
  gap: 20px;
}
.page-products .next__card {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 28px 24px 32px;
  border: 2px solid var(--edge);
  background: var(--space);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: var(--halo);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}
.page-products .next__card:hover,
.page-products .next__card:focus-visible {
  border-color: var(--sun);
  transform: translate(-2px, -2px);
}
.page-products .next__card--accent {
  background: var(--deep);
  border-color: var(--sun);
}
.page-products .next__kicker {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--slate);
}
.page-products .next__title {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -0.01em;
}
.page-products .next__text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate);
}
.page-products .next__go {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--sun);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-products .plate__row {
    grid-template-columns: 160px 1fr;
    gap: 18px;
    align-items: baseline;
  }
  .page-products .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
  .page-products .next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .spec-card__figure {
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-products .dl-hero {
    padding: 56px 0 96px;
  }
  .page-products .dl-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
    align-items: start;
  }
  .page-products .dl-hero__media {
    margin-top: 28px;
  }
  .page-products .section__head {
    margin-bottom: 56px;
  }
  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .steps__item:nth-child(2) {
    transform: translateY(-18px);
  }
  .page-products .migrate {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: start;
  }
  .page-products .specs__figure {
    margin-bottom: 56px;
  }
  .page-products .spec-card__figure {
    max-width: 380px;
    margin-left: auto;
    margin-top: -120px;
  }
  .page-products .ver-tabs,
  .page-products .spec-tabs {
    gap: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ver-tabs .tab,
  .page-products .spec-tabs .tab,
  .page-products .next__card {
    transition: none;
  }
  .page-products .steps__item:nth-child(2) {
    transform: none;
  }
}