.page-products {
  --pd-tight: clamp(1.5rem, 3.5vw, 2.25rem);
  --pd-panel: #082B2C;
  --pd-panel-soft: rgba(18, 101, 92, .28);
  color: var(--text);
}

.page-products .zone {
  padding-block: clamp(2.75rem, 6vw, 4.75rem);
}

.page-products .breadcrumb {
  margin-bottom: clamp(1.25rem, 4vw, 2rem);
}

/* ---------- 首屏 ---------- */
.pd-hero {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: end;
}

.pd-hero__kicker {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .14em;
  color: var(--c-gold);
}

.pd-hero .display-title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 6.2vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  max-width: 22ch;
}

.pd-hero .lead {
  margin: 0;
  max-width: 46ch;
  color: var(--text-muted);
  line-height: 1.75;
}

.pd-hero__aside {
  position: relative;
  padding: 1.5rem 1.25rem 1.25rem;
  background: linear-gradient(150deg, var(--pd-panel-soft), transparent 70%);
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  border-left: 2px solid var(--c-gold);
}

.pd-facts {
  list-style: none;
  margin: .85rem 0 0;
  padding: 0;
}

.pd-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: .55rem 0;
  border-bottom: 1px solid var(--line);
}

.pd-facts li:last-child {
  border-bottom: 0;
}

.pd-facts__key {
  font-size: .92rem;
  color: var(--text-muted);
}

.pd-facts__val {
  font-size: 1.05rem;
  color: var(--c-white);
}

.pd-facts__note {
  margin: .9rem 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--c-mist);
}

.pd-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .35rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

.pd-jump__link {
  padding: .35rem .7rem;
  font-size: .85rem;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--r-plate);
  transition: color .3s var(--ease-tide), border-color .3s var(--ease-tide), background-color .3s var(--ease-tide);
}

.pd-jump__link:hover,
.pd-jump__link:focus-visible {
  color: var(--c-gold-soft);
  border-color: var(--c-gold);
  background: rgba(216, 169, 59, .08);
}

/* ---------- 通用文本块 ---------- */
.pd-intro {
  max-width: 62ch;
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  color: var(--text-muted);
  line-height: 1.8;
}

.page-products .stack > * + * {
  margin-top: 1.1rem;
}

/* ---------- 分类树 ---------- */
.pd-tree__figure {
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
}

.pd-tabs .tabs__list {
  display: flex;
  gap: .15rem;
  overflow-x: auto;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.pd-tabs .tabs__tab {
  position: relative;
  flex: 0 0 auto;
  padding: .7rem .85rem .85rem;
  background: none;
  border: 0;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: .95rem;
  letter-spacing: .02em;
  cursor: pointer;
  white-space: nowrap;
  transition: color .3s var(--ease-tide);
}

.pd-tabs .tabs__tab::after {
  content: "";
  position: absolute;
  left: .4rem;
  right: .4rem;
  bottom: 0;
  height: 2px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s var(--ease-tide);
}

.pd-tabs .tabs__tab[aria-selected="true"] {
  color: var(--c-white);
}

.pd-tabs .tabs__tab[aria-selected="true"]::after {
  transform: scaleX(1);
}

.pd-tabs .tabs__tab:focus-visible {
  outline: 2px solid var(--c-gold-soft);
  outline-offset: 2px;
}

.page-products .tabs__panel {
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-products .tabs__panel[hidden] {
  display: none;
}

.page-products .tabs__panel:focus-visible {
  outline: 2px solid var(--c-gold-soft);
  outline-offset: 6px;
}

.pd-tree {
  display: grid;
  gap: 1.5rem;
}

.pd-tree__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pd-tree__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: .72rem .25rem .72rem .85rem;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background-color .3s var(--ease-tide);
}

.pd-tree__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--c-mist);
  transition: background-color .3s var(--ease-tide), width .3s var(--ease-tide);
}

.pd-tree__item:hover::before {
  width: 20px;
  background: var(--c-gold);
}

.pd-tree__name {
  font-size: 1rem;
}

.pd-tree__count {
  font-size: .88rem;
  color: var(--c-mist);
  white-space: nowrap;
}

.pd-tree__aside {
  padding-left: 1.1rem;
  border-left: 2px solid var(--c-gold);
}

.pd-tree__sum {
  margin: 0;
  font-size: 1rem;
  color: var(--c-white);
}

.pd-tree__sum .num {
  color: var(--c-gold);
}

.pd-tree__note {
  margin: .7rem 0 1.1rem;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 条目详情 ---------- */
.pd-detail {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.pd-detail__figure {
  margin: 0;
}

.pd-detail__body p {
  margin: 0;
  line-height: 1.8;
}

.pd-spec {
  margin: 0;
}

.pd-spec__row {
  padding: .9rem 0;
  border-bottom: 1px solid var(--line);
}

.pd-spec__row:first-child {
  border-top: 1px solid var(--line);
}

.pd-spec dt {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--c-gold);
  margin-bottom: .4rem;
}

.pd-spec dd {
  margin: 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* ---------- 返水参数 ---------- */
.pd-rebate {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.pd-rebate__copy p {
  margin: 0;
  line-height: 1.85;
}

.pd-rebate__figure {
  margin: 0;
}

.pd-steps {
  margin: 0;
  padding-left: 1.1rem;
  list-style: none;
  counter-reset: pd-step;
}

.pd-steps li {
  position: relative;
  counter-increment: pd-step;
  padding: .55rem 0 .55rem 1.9rem;
  border-bottom: 1px solid var(--line);
  font-size: .95rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.pd-steps li::before {
  content: counter(pd-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .55rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--c-gold);
}

.pd-steps strong {
  color: var(--c-white);
  font-weight: 600;
}

.pd-calc {
  padding: clamp(1.1rem, 3vw, 1.6rem);
  background: var(--pd-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-soft);
}

.pd-calc__bar {
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.pd-calc__label {
  margin: 0 0 .5rem;
  font-family: var(--font-mono);
  font-size: .84rem;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.pd-calc__hint {
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.pd-calc__scroll {
  overflow-x: auto;
}

.pd-table {
  width: 100%;
  min-width: 26rem;
  border-collapse: collapse;
  font-size: .95rem;
}

.pd-table__caption {
  caption-side: top;
  padding-bottom: .8rem;
  text-align: left;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--c-mist);
}

.pd-table th,
.pd-table td {
  padding: .7rem .6rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.pd-table thead th {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--c-gold-soft);
  border-bottom: 1px solid var(--line-strong);
}

.pd-table tbody th {
  font-weight: 400;
  color: var(--text-muted);
}

.pd-table td.num {
  color: var(--c-white);
}

.pd-table__total th,
.pd-table__total td {
  border-bottom: 0;
  border-top: 1px solid var(--c-gold);
  color: var(--c-gold-soft);
}

.pd-calc__foot {
  margin: 1rem 0 0;
  font-size: .85rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.pd-bars {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
}

.pd-bars img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-plate);
  border: 1px solid var(--line);
}

.pd-bars__caption {
  margin-top: .7rem;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 版本线 ---------- */
.pd-version__banner {
  margin: 0 0 clamp(2rem, 5vw, 2.75rem);
}

.pd-version__banner img {
  display: block;
  width: 100%;
  height: clamp(6rem, 22vw, 11rem);
  object-fit: cover;
  object-position: center;
  border-radius: var(--r-soft);
  opacity: .7;
}

.pd-version {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.4rem;
}

.pd-version .tide-timeline__item {
  position: relative;
  padding: 0 0 0 1.15rem;
  border-left: 1px solid var(--line);
}

.pd-version .tide-timeline__node {
  position: absolute;
  left: -5px;
  top: .3rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c-mist);
}

.pd-version__current .tide-timeline__node {
  background: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(216, 169, 59, .18);
}

.pd-version .tide-timeline__time {
  display: block;
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.pd-version .tide-timeline__title {
  margin: .35rem 0 .5rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-white);
}

.pd-version .tide-timeline__item p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.pd-version__note {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  max-width: 60ch;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 边界说明 ---------- */
.pd-limits {
  display: grid;
  gap: 1.5rem;
}

.pd-limit {
  padding-top: 1.1rem;
  border-top: 1px solid var(--line-strong);
}

.pd-limit__title {
  margin: 0 0 .7rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--c-white);
}

.pd-limit p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.pd-limit__link {
  margin-top: 1rem;
}

/* ---------- 后续去处 ---------- */
.pd-routes {
  display: grid;
  gap: 1.25rem;
}

.pd-route {
  display: block;
}

.pd-backline {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.pd-backline a {
  color: var(--c-gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(216, 169, 59, .45);
}

.pd-backline a:hover,
.pd-backline a:focus-visible {
  border-bottom-color: var(--c-gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .pd-facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 1.25rem;
  }

  .pd-facts li:last-child {
    grid-column: 1 / -1;
  }

  .pd-tree__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 1.5rem;
  }

  .pd-limits {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.75rem;
  }

  .pd-routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .pd-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .pd-hero .display-title {
    font-size: clamp(2.5rem, 3.6vw, 3.4rem);
  }

  .pd-hero__aside {
    margin-bottom: .5rem;
  }

  .pd-detail {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .pd-detail__figure {
    position: sticky;
    top: 8rem;
  }

  .pd-rebate {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .pd-tree {
    grid-template-columns: minmax(0, 1fr) 17rem;
    align-items: start;
  }

  .pd-tree__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 2rem;
  }

  .pd-version {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 2rem;
    border-top: 1px solid var(--line-strong);
    padding-top: 2.4rem;
    margin-top: -1.2rem;
  }

  .pd-version .tide-timeline__item {
    padding: 0;
    border-left: 0;
  }

  .pd-version .tide-timeline__node {
    left: 0;
    top: -2.95rem;
    width: 10px;
    height: 10px;
  }

  .pd-routes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pd-route:nth-child(2) {
    margin-top: 1.75rem;
  }

  .pd-route:nth-child(3) {
    margin-top: .75rem;
  }
}

@media (min-width: 1100px) {
  .pd-version {
    gap: 0 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-jump__link,
  .page-products .pd-tabs .tabs__tab,
  .page-products .pd-tabs .tabs__tab::after,
  .page-products .pd-tree__item,
  .page-products .pd-tree__item::before {
    transition: none;
  }
}