.page-products {
  --prod-rail-w: 232px;
  --prod-gap: 24px;
  --prod-tight: 16px;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 72px;
}

.page-products .page-shell {
  padding-top: 20px;
}

/* 首屏 */
.page-products .prod-hero {
  display: grid;
  gap: 28px;
  padding: 28px 0 40px;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(138deg, rgba(199, 255, 62, 0.07) 0%, rgba(199, 255, 62, 0) 46%);
}

.page-products .prod-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 7.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  font-weight: 800;
  color: var(--white-000);
  margin: 12px 0 0;
  max-width: 18ch;
}

.page-products .prod-hero__lede {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 62ch;
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .prod-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-hero__facts li {
  background: var(--ink-700);
  padding: 14px 16px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-products .prod-fact__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  font-weight: 600;
  color: var(--accent);
}

.page-products .prod-fact__label {
  font-size: 12.5px;
  color: var(--text-dim);
  white-space: nowrap;
}

.page-products .prod-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
}

.page-products .prod-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-products .prod-hero__figcap {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* 双栏骨架 */
.page-products .prod-layout {
  display: grid;
  gap: var(--prod-gap);
  padding-top: 28px;
  align-items: start;
}

.page-products .prod-body {
  min-width: 0;
}

/* 索引条：移动端横排吸顶 */
.page-products .prod-rail {
  position: sticky;
  top: calc(var(--header-h) + 4px);
  z-index: 15;
  background: var(--ink-900);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .prod-rail__title {
  display: none;
  margin: 0;
}

.page-products .prod-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 2px;
  display: flex;
  gap: 8px;
}

.page-products .prod-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .prod-rail__link:hover,
.page-products .prod-rail__link:focus-visible {
  color: var(--white-000);
  border-color: var(--accent);
}

.page-products .prod-rail__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}

/* 章节 */
.page-products .prod-section {
  padding-top: 34px;
  margin-top: 34px;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.page-products .prod-body > .prod-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-products .prod-section__head {
  margin-bottom: 16px;
}

.page-products .prod-section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(23px, 4.6vw, 33px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white-000);
  margin: 8px 0 0;
  max-width: 22ch;
}

.page-products .prod-lede {
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--text-dim);
  max-width: 70ch;
}

/* 双卡分栏 */
.page-products .prod-split {
  display: grid;
  gap: var(--prod-tight);
}

.page-products .prod-split--tight {
  margin-top: 20px;
}

.page-products .prod-note {
  border: 1px solid var(--line);
  background: var(--ink-700);
  padding: 20px;
  min-width: 0;
}

.page-products .prod-note h3 {
  font-family: var(--font-display);
  font-size: 18.5px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--white-000);
  margin: 0 0 14px;
}

.page-products .prod-note p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-products .prod-note p:last-of-type {
  margin-bottom: 0;
}

.page-products .prod-note--lime {
  border-left: 3px solid var(--lime-400);
}

.page-products .prod-note--orange {
  border-left: 3px solid var(--orange-500);
}

.page-products .prod-deflist {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-products .prod-deflist dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--accent);
  margin-bottom: 4px;
}

.page-products .prod-deflist dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-products .prod-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .prod-bullets li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-products .prod-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 1px;
  background: var(--accent);
}

.page-products .prod-bullets strong {
  color: var(--white-000);
  font-weight: 600;
}

.page-products .prod-link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: color 180ms var(--ease);
}

.page-products .prod-link:hover,
.page-products .prod-link:focus-visible {
  color: var(--white-000);
  border-bottom-color: var(--white-000);
}

.page-products .prod-inline-link {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .prod-inline-link .prod-link {
  margin-top: 0;
}

/* 数据板 */
.page-products .prod-board {
  border: 1px solid var(--line);
  background: var(--ink-900);
  margin-top: 8px;
}

.page-products .prod-board__tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-products .prod-board__tab {
  flex: 0 0 auto;
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 13.5px;
  padding: 12px 16px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .prod-board__tab:hover {
  color: var(--white-000);
  background: rgba(27, 74, 61, 0.55);
}

.page-products .prod-board__tab[aria-selected="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: rgba(199, 255, 62, 0.07);
}

.page-products .prod-board__panel {
  overflow-x: auto;
  scrollbar-width: thin;
}

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

.page-products .prod-board__panel--text {
  padding: 20px;
}

.page-products .prod-board__panel--text h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white-000);
  margin: 0 0 10px;
}

.page-products .prod-board__panel--text p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* 表格 */
.page-products .prod-table {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-products .prod-table caption {
  caption-side: top;
  text-align: left;
  padding: 12px 16px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.page-products .prod-table thead th {
  background: var(--ink-700);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-align: right;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-products .prod-table tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text);
  white-space: nowrap;
}

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

.page-products .prod-table thead th:nth-child(1),
.page-products .prod-table thead th:nth-child(2),
.page-products .prod-table tbody td:nth-child(1),
.page-products .prod-table tbody td:nth-child(2) {
  text-align: left;
}

.page-products .prod-table tbody td:nth-child(1) {
  color: var(--accent);
  width: 56px;
}

.page-products .prod-table tbody td:nth-child(2) {
  font-family: var(--font-body);
  color: var(--white-000);
}

.page-products .prod-table tbody tr:hover td {
  background: rgba(27, 74, 61, 0.62);
}

/* 图例 */
.page-products .prod-legend {
  list-style: none;
  margin: 20px 0 0;
  padding: 14px 16px;
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  background: var(--ink-700);
}

.page-products .prod-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-dim);
}

.page-products .prod-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
}

.page-products .prod-dot--orange {
  background: var(--orange-500);
}

.page-products .prod-dot--lime {
  background: var(--lime-400);
}

.page-products .prod-dot--mist {
  background: var(--mist-300);
}

/* 图片 */
.page-products .prod-figure {
  margin: 20px 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
}

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

.page-products .prod-figure--tall img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  max-height: 460px;
}

/* 版本规格 */
.page-products .prod-spec {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-spec li {
  background: var(--ink-700);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 16px;
}

.page-products .prod-spec__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.page-products .prod-spec__v {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--white-000);
  text-align: right;
}

/* 步骤 */
.page-products .prod-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .prod-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--ink-700);
  transition: border-color 200ms var(--ease);
}

.page-products .prod-step:hover {
  border-color: var(--accent);
}

.page-products .prod-step__num {
  font-family: var(--font-display);
  font-size: 42px;
  line-height: 0.92;
  font-weight: 800;
  color: var(--accent);
}

.page-products .prod-step h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--white-000);
}

.page-products .prod-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

/* 末尾引导 */
.page-products .prod-cta {
  margin-top: 44px;
  padding: 26px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(199, 255, 62, 0.11), rgba(18, 53, 43, 0.92) 62%);
}

.page-products .prod-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--white-000);
  margin: 8px 0 12px;
  max-width: 24ch;
}

.page-products .prod-cta p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
  max-width: 62ch;
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* 平板 */
@media (min-width: 700px) {
  .page-products .prod-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .prod-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: center;
  }

  .page-products .prod-steps {
    gap: 14px;
  }
}

@media (min-width: 860px) {
  .page-products .prod-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .prod-note {
    padding: 22px;
  }
}

/* 桌面：左栏固定索引 */
@media (min-width: 1024px) {
  .page-products {
    padding-bottom: 96px;
  }

  .page-products .prod-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 40px;
    align-items: start;
    padding: 40px 0 48px;
  }

  .page-products .prod-hero__media img {
    aspect-ratio: 4 / 3;
  }

  .page-products .prod-layout {
    grid-template-columns: var(--prod-rail-w) minmax(0, 1fr);
    gap: 32px;
    padding-top: 36px;
  }

  .page-products .prod-rail {
    top: calc(var(--header-h) + 16px);
    padding: 18px;
    border: 1px solid var(--line);
    background: var(--ink-700);
    overflow: visible;
  }

  .page-products .prod-rail__title {
    display: block;
    margin: 0 0 12px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.09em;
    color: var(--text-dim);
  }

  .page-products .prod-rail__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
  }

  .page-products .prod-rail__link {
    display: flex;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    white-space: normal;
    box-sizing: border-box;
  }

  .page-products .prod-rail__link:hover,
  .page-products .prod-rail__link:focus-visible {
    border-left-color: var(--accent);
    background: var(--ink-600);
  }

  .page-products .prod-rail__label {
    font-size: 13.5px;
  }

  .page-products .prod-figure--tall {
    max-width: 520px;
  }

  .page-products .prod-figure--tall img {
    aspect-ratio: 4 / 5;
    max-height: none;
  }

  .page-products .prod-cta {
    padding: 34px 32px;
  }
}

@media (min-width: 1280px) {
  .page-products .prod-lede {
    font-size: 16px;
  }

  .page-products .prod-table {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-rail__link,
  .page-products .prod-board__tab,
  .page-products .prod-step,
  .page-products .prod-link {
    transition: none;
  }
}