.page-products {
  --pd-line: 1px solid var(--grid-600);
  --pd-block-gap: clamp(40px, 6vh, 88px);
  display: block;
  background: var(--navy-950);
  color: var(--ice-100);
  padding-bottom: clamp(64px, 10vh, 140px);
}

.page-products .pd-shell {
  padding-top: clamp(20px, 4vh, 44px);
}

.page-products .pd-crumbs {
  margin-bottom: clamp(24px, 4vh, 44px);
}

/* ---------- 首屏 ---------- */

.page-products .pd-lead {
  max-width: 940px;
  margin-bottom: clamp(48px, 9vh, 120px);
}

.page-products .pd-lead__kicker {
  margin: 0 0 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan-400);
}

.page-products .pd-lead__title {
  margin: 0 0 20px;
}

.page-products .pd-lead__text {
  max-width: 60ch;
  margin: 0 0 clamp(28px, 4vh, 44px);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ice-60);
}

.page-products .pd-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: var(--pd-line);
  background: var(--grid-600);
}

.page-products .pd-stats > div {
  background: var(--navy-800);
  padding: 16px 14px;
}

.page-products .pd-stats dt {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ice-60);
}

.page-products .pd-stats dd {
  margin: 0;
  font-family: var(--f-mono);
  font-weight: 600;
  font-size: 26px;
  line-height: 1;
  color: var(--signal-500);
}

/* ---------- 主体骨架：左索引 + 右内容 ---------- */

.page-products .pd-body {
  display: grid;
  gap: 28px;
}

.page-products .pd-index {
  border: var(--pd-line);
  background: rgba(20, 23, 28, 0.66);
  padding: 14px 16px;
}

.page-products .pd-index__title {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ice-60);
}

.page-products .pd-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-products .pd-index__list a {
  display: block;
  padding: 7px 10px;
  border-left: 2px solid transparent;
  color: var(--ice-60);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-link), border-color var(--t-link);
}

.page-products .pd-index__list a:hover,
.page-products .pd-index__list a:focus-visible {
  color: var(--cyan-400);
  border-left-color: var(--cyan-400);
}

/* ---------- 面板区块 ---------- */

.page-products .pd-block {
  scroll-margin-top: 96px;
  border: var(--pd-line);
  background: linear-gradient(180deg, rgba(16, 35, 60, 0.58) 0%, rgba(8, 19, 31, 0.16) 100%);
  padding: clamp(20px, 3.5vw, 48px);
}

.page-products .pd-block + .pd-block {
  margin-top: var(--pd-block-gap);
}

.page-products .pd-block__label {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan-700);
}

.page-products .pd-block__head h2 {
  margin: 0 0 16px;
}

.page-products .pd-block__lead {
  max-width: 62ch;
  margin: 0 0 clamp(24px, 3vw, 40px);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ice-60);
}

.page-products .pd-block__foot {
  margin: 24px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ice-60);
}

/* ---------- 左说明 + 右工具 ---------- */

.page-products .pd-split {
  display: grid;
  gap: 24px;
}

.page-products .pd-split__note p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ice-100);
}

.page-products .pd-split__note p:last-child {
  margin-bottom: 0;
}

.page-products .pd-note-list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-products .pd-note-list li {
  padding: 12px 0;
  border-top: var(--pd-line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ice-60);
}

.page-products .pd-note-list li:last-child {
  border-bottom: var(--pd-line);
}

.page-products .pd-note-list strong {
  margin-right: 8px;
  color: var(--ice-100);
  font-weight: 700;
}

/* ---------- 图片 ---------- */

.page-products .pd-figure {
  margin: 0;
  border: var(--pd-line);
  background: var(--navy-700);
  overflow: hidden;
}

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

.page-products .pd-figure--wide {
  margin-top: clamp(24px, 3vw, 40px);
}

.page-products .pd-figure--sq {
  max-width: 420px;
}

.page-products .pd-figure__cap {
  padding: 12px 16px;
  border-top: var(--pd-line);
  background: var(--navy-800);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ice-60);
}

/* ---------- 工具条与筛选 ---------- */

.page-products .pd-tool {
  margin-top: clamp(24px, 3vw, 40px);
  padding-top: clamp(20px, 3vw, 32px);
  border-top: var(--pd-line);
}

.page-products .pd-tool__title {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ice-60);
}

.page-products .pd-tool__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .nx-filter__btn {
  padding: 8px 12px;
  border: 1px solid var(--grid-600);
  background: transparent;
  color: var(--ice-60);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--t-base), border-color var(--t-base), background var(--t-base);
}

.page-products .nx-filter__btn:hover,
.page-products .nx-filter__btn:focus-visible {
  color: var(--ice-100);
  border-color: var(--cyan-700);
}

.page-products .nx-filter__btn[aria-pressed="true"] {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
  background: rgba(53, 224, 214, 0.09);
}

.page-products .pd-tool__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ice-60);
}

/* ---------- 字段矩阵 ---------- */

.page-products .pd-field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: var(--pd-line);
  background: var(--grid-600);
}

.page-products .pd-field {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 14px 12px;
  background: var(--navy-800);
  font-size: 13px;
  line-height: 1.4;
  color: var(--ice-100);
}

.page-products .pd-field__n {
  flex: none;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ice-60);
}

/* ---------- 四维筛选示意 ---------- */

.page-products .pd-dims {
  display: grid;
  border: var(--pd-line);
  background: rgba(20, 23, 28, 0.6);
}

.page-products .pd-dim {
  padding: 18px 20px;
}

.page-products .pd-dim + .pd-dim {
  border-top: var(--pd-line);
}

.page-products .pd-dim__label {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan-400);
}

.page-products .pd-dim__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .pd-chip {
  display: inline-block;
  padding: 5px 9px;
  border: 1px solid var(--grid-600);
  color: var(--ice-60);
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.3;
}

.page-products .pd-chip--on {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  background: rgba(53, 224, 214, 0.1);
}

/* ---------- 轮次对照表 ---------- */

.page-products .pd-table-wrap {
  border: var(--pd-line);
  overflow-x: auto;
}

.page-products .pd-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .pd-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 12px 14px;
  border-bottom: var(--pd-line);
  background: var(--charcoal-900);
  color: var(--ice-60);
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-align: left;
  white-space: nowrap;
}

.page-products .pd-table tbody th,
.page-products .pd-table tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(36, 53, 77, 0.7);
  color: var(--ice-100);
  white-space: nowrap;
}

.page-products .pd-table tbody th {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--navy-800);
  font-family: var(--f-body);
  font-weight: 600;
  text-align: left;
}

.page-products .pd-table tbody tr:last-child th,
.page-products .pd-table tbody tr:last-child td {
  border-bottom: none;
}

.page-products .pd-t {
  font-family: var(--f-mono);
  font-weight: 600;
  color: var(--signal-500);
}

.page-products .pd-code {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--ice-60);
}

/* ---------- 阅读器 ---------- */

.page-products .pd-reader-demo {
  display: grid;
  gap: 16px;
}

.page-products .pd-reader {
  padding: 20px;
  border: var(--pd-line);
  background: var(--charcoal-900);
}

.page-products .pd-reader__meta {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan-700);
}

.page-products .pd-reader h3 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.4;
}

.page-products .pd-reader .nx-collapse__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ice-60);
}

.page-products .pd-reader .nx-collapse__toggle {
  margin-top: 14px;
  padding: 0 0 2px;
  border: none;
  border-bottom: 1px solid transparent;
  background: none;
  color: var(--cyan-400);
  font-size: 13px;
  cursor: pointer;
  transition: border-color var(--t-link);
}

.page-products .pd-reader .nx-collapse__toggle:hover,
.page-products .pd-reader .nx-collapse__toggle:focus-visible {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 订阅提醒 ---------- */

.page-products .pd-alerts-wrap {
  display: grid;
  gap: 20px;
}

.page-products .pd-alerts {
  display: grid;
  gap: 1px;
  border: var(--pd-line);
  background: var(--grid-600);
}

.page-products .pd-alert {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  background: var(--navy-800);
}

.page-products .pd-alert__name {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ice-100);
}

.page-products .pd-alert__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ice-60);
}

.page-products .pd-switch {
  position: relative;
  flex: none;
  width: 40px;
  height: 20px;
  border: 1px solid var(--grid-600);
  background: var(--navy-950);
}

.page-products .pd-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--grid-600);
  transition: transform var(--t-fast), background var(--t-fast);
}

.page-products .pd-switch--on {
  border-color: var(--cyan-400);
}

.page-products .pd-switch--on::after {
  transform: translateX(18px);
  background: var(--cyan-400);
}

/* ---------- 多端指标 ---------- */

.page-products .pd-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  border: var(--pd-line);
  background: var(--grid-600);
}

.page-products .pd-metrics li {
  padding: 18px 16px;
  background: var(--charcoal-900);
}

.page-products .pd-metrics .nx-num {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 26px;
  font-weight: 600;
  line-height: 1;
  color: var(--signal-500);
}

.page-products .pd-metrics__unit {
  margin-left: 2px;
  font-family: var(--f-mono);
  font-size: 14px;
  color: var(--ice-60);
}

.page-products .pd-metrics__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ice-60);
}

/* ---------- 后续路径 ---------- */

.page-products .pd-next {
  margin-top: var(--pd-block-gap);
  padding-top: clamp(28px, 4vh, 48px);
  border-top: var(--pd-line);
}

.page-products .pd-next h2 {
  margin: 0 0 24px;
}

.page-products .pd-next__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: var(--pd-line);
  background: var(--grid-600);
}

.page-products .pd-next__list a {
  display: block;
  padding: 20px;
  background: var(--navy-800);
  text-decoration: none;
  transition: background var(--t-base);
}

.page-products .pd-next__list a:hover,
.page-products .pd-next__list a:focus-visible {
  background: var(--navy-700);
}

.page-products .pd-next__t {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ice-100);
  transition: color var(--t-base);
}

.page-products .pd-next__list a:hover .pd-next__t,
.page-products .pd-next__list a:focus-visible .pd-next__t {
  color: var(--cyan-400);
}

.page-products .pd-next__d {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ice-60);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .pd-figure--sq {
    max-width: 100%;
  }
}

@media (min-width: 860px) {
  .page-products .pd-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .pd-split--tools {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }

  .page-products .pd-alerts-wrap {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-products .pd-body {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-products .pd-index {
    position: sticky;
    top: 88px;
  }

  .page-products .pd-index__list {
    display: block;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-products .pd-index__list li + li {
    margin-top: 2px;
  }

  .page-products .pd-stats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .pd-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 719px) {
  .page-products .pd-index__title {
    margin-bottom: 8px;
  }

  .page-products .pd-metrics .nx-num {
    font-size: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition: none !important;
    animation: none !important;
  }
}