.page-products {
  --cat-gap: clamp(20px, 3vw, 44px);
  --cat-pad: clamp(16px, 2.4vw, 28px);
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-products .cat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cat-gap);
  align-items: start;
}

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

/* ---------- 左侧进度轴 ---------- */
.page-products .cat-axis {
  display: none;
}

@media (min-width: 1024px) {
  .page-products .cat-layout {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 64px);
  }

  .page-products .cat-axis {
    display: block;
    position: sticky;
    top: 120px;
    align-self: start;
  }

  .page-products .cat-axis .progress-axis__step {
    padding-block: 14px;
  }

  .page-products .cat-axis .progress-axis__label {
    display: block;
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-scale);
    margin-top: 4px;
  }

  .page-products .cat-axis .progress-axis__step[data-active="true"] .progress-axis__label,
  .page-products .cat-axis .progress-axis__step.is-active .progress-axis__label {
    color: var(--c-cyan);
  }
}

/* ---------- 首屏框景 ---------- */
.page-products .cat-hero {
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-products .cat-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-paper);
}

.page-products .cat-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

@media (min-width: 760px) {
  .page-products .cat-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
}

.page-products .cat-hero__fact {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-left: 2px solid var(--c-amber);
  background: rgba(22, 50, 75, 0.5);
}

.page-products .cat-hero__num {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-amber);
  letter-spacing: 0.02em;
}

.page-products .cat-hero__unit {
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-scale);
}

/* ---------- 章节骨架 ---------- */
.page-products .cat-section {
  margin-top: clamp(52px, 7vw, 104px);
  scroll-margin-top: 104px;
}

.page-products .cat-note {
  margin: 18px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-sand);
}

.page-products .cat-note--foot {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line-color);
  font-size: 14px;
  color: var(--c-scale);
}

.page-products .cat-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(89, 227, 208, 0.4);
}

.page-products .cat-link:hover,
.page-products .cat-link:focus-visible {
  color: var(--c-paper);
  border-bottom-color: var(--c-paper);
}

/* ---------- 01 索引卡 ---------- */
.page-products .cat-index {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

@media (min-width: 768px) {
  .page-products .cat-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-products .cat-index__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--cat-pad);
  background: var(--glass);
  border: 1px solid var(--line-color);
  border-top: 3px solid var(--c-amber);
  border-radius: var(--radius);
}

.page-products .cat-index__card:nth-child(2) {
  border-top-color: var(--c-jade);
}

.page-products .cat-index__card:nth-child(3) {
  border-top-color: var(--c-cyan);
}

.page-products .cat-index__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-products .cat-index__num {
  margin: 6px 0 0;
  font-size: 40px;
  line-height: 1.05;
  font-weight: 700;
  color: var(--c-amber);
  letter-spacing: 0.01em;
}

.page-products .cat-index__card:nth-child(2) .cat-index__num {
  color: var(--c-jade);
}

.page-products .cat-index__card:nth-child(3) .cat-index__num {
  color: var(--c-cyan);
  font-size: 32px;
}

.page-products .cat-index__unit {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-scale);
}

.page-products .cat-index__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-sand);
}

.page-products .cat-index__card .btn {
  margin-top: auto;
  align-self: flex-start;
  margin-block-start: 18px;
}

/* ---------- 表格通用 ---------- */
.page-products .cat-table {
  margin-top: 26px;
}

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

.page-products .cat-table .data-table th,
.page-products .cat-table .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line-color);
  vertical-align: top;
}

.page-products .cat-table .data-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--c-raised);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-scale);
  border-bottom: 1px solid rgba(159, 179, 196, 0.4);
  white-space: nowrap;
}

.page-products .cat-table .data-table tbody tr:nth-child(even) {
  background: rgba(232, 237, 241, 0.045);
}

.page-products .cat-table .data-table tbody tr:hover {
  background: rgba(22, 50, 75, 0.72);
}

.page-products .cat-table .data-table tbody tr:last-child td {
  border-bottom: none;
}

.page-products .cat-table .data-table__num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-products .cat-table__name {
  font-weight: 600;
  color: var(--c-paper);
}

.page-products .cat-table .batch-tag {
  display: inline-flex;
  align-items: center;
}

@media (max-width: 719px) {
  .page-products .cat-table {
    overflow: visible;
  }

  .page-products .cat-table .data-table,
  .page-products .cat-table .data-table thead,
  .page-products .cat-table .data-table tbody,
  .page-products .cat-table .data-table tr,
  .page-products .cat-table .data-table th,
  .page-products .cat-table .data-table td {
    display: block;
    width: 100%;
  }

  .page-products .cat-table .data-table thead {
    display: none;
  }

  .page-products .cat-table .data-table tr {
    padding: 14px;
    margin-bottom: 12px;
    border: 1px solid var(--line-color);
    border-left: 3px solid var(--c-amber);
    border-radius: var(--radius);
    background: rgba(16, 38, 58, 0.6);
  }

  .page-products .cat-table .data-table tr:nth-child(even) {
    background: rgba(16, 38, 58, 0.6);
  }

  .page-products .cat-table .data-table tbody tr:hover {
    background: rgba(22, 50, 75, 0.7);
  }

  .page-products .cat-table .data-table td {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 10px;
    padding: 5px 0;
    border-bottom: none;
  }

  .page-products .cat-table .data-table td::before {
    content: attr(data-label);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--c-scale);
    padding-top: 2px;
  }

  .page-products .cat-table .data-table td:first-child {
    padding-bottom: 10px;
    margin-bottom: 6px;
    border-bottom: 1px solid var(--line-color);
  }

  .page-products .cat-table .data-table td:first-child::before {
    display: none;
  }
}

/* ---------- 甘特式周期条 ---------- */
.page-products .cat-gantt-wrap {
  margin: 28px 0 0;
  padding: var(--cat-pad);
  background: rgba(16, 38, 58, 0.55);
  border: 1px solid var(--line-color);
  border-radius: var(--radius);
}

.page-products .cat-gantt {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-products .cat-gantt__grid {
  stroke: rgba(159, 179, 196, 0.32);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.page-products .cat-gantt__bar {
  fill: var(--c-amber);
}

.page-products .cat-gantt__bar--jade {
  fill: var(--c-jade);
}

.page-products .cat-gantt__bar--cyan {
  fill: var(--c-cyan);
}

.page-products .cat-gantt__label {
  fill: var(--c-scale);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
}

.page-products .cat-gantt__value {
  fill: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
}

.page-products .cat-gantt-wrap .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-scale);
}

/* ---------- 系列错落卡片 ---------- */
.page-products .cat-series {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 34px;
}

@media (min-width: 900px) {
  .page-products .cat-series {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 30px 26px;
  }

  .page-products .cat-series__item:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-products .cat-series__item:nth-child(2) {
    grid-column: 5 / span 8;
    margin-top: 52px;
  }

  .page-products .cat-series__item:nth-child(3) {
    grid-column: 1 / span 8;
    margin-top: 8px;
  }

  .page-products .cat-series__item:nth-child(4) {
    grid-column: 1 / span 5;
    margin-top: 24px;
  }

  .page-products .cat-series__item:nth-child(5) {
    grid-column: 7 / span 6;
    margin-top: 84px;
  }
}

.page-products .cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: calc(var(--cat-pad) + 4px) var(--cat-pad);
  background: rgba(10, 26, 42, 0.72);
  border: 1px solid var(--line-color);
  border-radius: var(--radius);
}

.page-products .cat-card__media {
  margin: -34px -20px 6px;
  position: relative;
  z-index: 2;
}

.page-products .cat-card__media--left {
  margin-inline-start: -34px;
  margin-inline-end: 12px;
}

.page-products .cat-card__bleed {
  margin: 18px -20px -28px;
  position: relative;
  z-index: 2;
}

.page-products .cat-card .figure__media {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line-color);
  background: var(--c-raised);
}

.page-products .cat-card .figure__media img,
.page-products .cat-warranty__figure .figure__media img,
.page-products .cat-batch__media .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .cat-card .figure__caption,
.page-products .cat-warranty__figure .figure__caption,
.page-products .cat-batch__media .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-scale);
}

.page-products .cat-card__title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-paper);
}

.page-products .cat-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-sand);
}

.page-products .cat-card__meta {
  margin: 6px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line-color);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-products .cat-card__meta dt {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-scale);
}

.page-products .cat-card__meta dd {
  margin: 4px 0 0;
  font-size: 15px;
  color: var(--c-amber);
}

.page-products .cat-card > .batch-tag {
  align-self: flex-start;
}

/* ---------- 03 保修阶梯 ---------- */
.page-products .cat-warranty {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  counter-reset: none;
}

.page-products .cat-warranty__step {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 18px;
  background: var(--glass);
  border: 1px solid var(--line-color);
  border-left: 3px solid var(--c-amber);
  border-radius: var(--radius);
}

.page-products .cat-warranty__step:nth-child(2) {
  border-left-color: var(--c-amber-deep);
}

.page-products .cat-warranty__step:nth-child(3) {
  border-left-color: var(--c-jade);
}

.page-products .cat-warranty__step:nth-child(4) {
  border-left-color: var(--c-cyan);
}

@media (min-width: 800px) {
  .page-products .cat-warranty__step:nth-child(2) {
    margin-inline-start: 28px;
  }

  .page-products .cat-warranty__step:nth-child(3) {
    margin-inline-start: 56px;
  }

  .page-products .cat-warranty__step:nth-child(4) {
    margin-inline-start: 84px;
  }
}

.page-products .cat-warranty__year {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-amber);
  letter-spacing: 0.01em;
}

.page-products .cat-warranty__step:nth-child(3) .cat-warranty__year {
  color: var(--c-jade);
}

.page-products .cat-warranty__step:nth-child(4) .cat-warranty__year {
  color: var(--c-cyan);
}

.page-products .cat-warranty__name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-products .cat-warranty__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-sand);
}

.page-products .cat-warranty__detail {
  margin-top: 22px;
}

.page-products .cat-warranty__detail .disclosure__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-sand);
}

.page-products .cat-warranty__detail .disclosure__body p:last-child {
  margin-bottom: 0;
}

.page-products .cat-warranty__figure {
  margin-top: 34px;
}

@media (min-width: 900px) {
  .page-products .cat-warranty__figure .figure__media {
    max-width: 520px;
  }
}

/* ---------- 04 批次与价格 ---------- */
.page-products .cat-batch {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
}

@media (min-width: 1024px) {
  .page-products .cat-batch {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

.page-products .cat-batch__main {
  min-width: 0;
}

.page-products .cat-table--price {
  margin-top: 22px;
}

.page-products .cat-batch__rules {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .cat-batch__rules li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-sand);
}

.page-products .cat-batch__rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--c-amber);
}

.page-products .cat-batch__rule-code {
  color: var(--c-amber);
  letter-spacing: 0.02em;
}

.page-products .cat-batch__media {
  margin: 0;
  position: relative;
}

@media (min-width: 1024px) {
  .page-products .cat-batch__media {
    margin-top: 76px;
  }
}

.page-products .cat-batch__media .figure__media {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line-color);
  background: var(--c-raised);
}

/* ---------- 05 核对入口 ---------- */
.page-products .cat-check {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 22px;
  padding: var(--cat-pad);
  background: rgba(16, 38, 58, 0.5);
  border: 1px solid var(--line-color);
  border-radius: var(--radius);
}

@media (min-width: 900px) {
  .page-products .cat-check {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

.page-products .cat-check__body .cat-note {
  margin-top: 0;
}

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

.page-products .cat-check__side {
  display: grid;
  gap: 12px;
}

.page-products .cat-check__side .data-block {
  padding: 14px 16px;
  background: rgba(10, 26, 42, 0.6);
  border-left: 2px solid var(--c-jade);
  border-radius: var(--radius);
}

.page-products .cat-check__side .data-block__title {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-scale);
}

.page-products .cat-check__side .data-block__value {
  margin: 6px 0 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--c-jade);
}

.page-products .cat-check__side .data-block__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-sand);
}

/* ---------- 收尾对齐 ---------- */
.page-products .chapter-head {
  margin-bottom: 4px;
}

@media (max-width: 480px) {
  .page-products .cat-card__media {
    margin: -26px -16px 6px;
  }

  .page-products .cat-card__bleed {
    margin: 16px -16px -24px;
  }

  .page-products .cat-warranty__step {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
    padding: 14px;
  }

  .page-products .cat-warranty__year {
    font-size: 24px;
  }

  .page-products .cat-index__num {
    font-size: 34px;
  }
}

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