.page-products {
  --prod-pad: clamp(18px, 3vw, 34px);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-products .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-products .breadcrumbs a:hover {
  color: var(--jade);
}

.page-products .breadcrumbs__current {
  color: var(--paper);
}

/* 首屏 */
.page-products .prod-intro {
  padding: clamp(22px, 4vw, 40px) 0 clamp(36px, 6vw, 72px);
}

.page-products .prod-intro__grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: center;
}

.page-products .prod-intro h1 {
  margin: 12px 0 0;
  font-size: clamp(34px, 5.4vw, 66px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 900;
}

.page-products .prod-intro__lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--paper);
  max-width: 56ch;
}

.page-products .prod-intro__facts {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: clamp(16px, 2.4vw, 20px) 0 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
}

.page-products .prod-intro__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .prod-intro__num {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-products .prod-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(22px, 3vw, 30px) 0 0;
}

/* 图片容器 */
.page-products .prod-shot {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-products .prod-shot figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

.page-products .prod-intro__media {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

/* 章节通用 */
.page-products .prod-section {
  padding: clamp(38px, 6vw, 82px) 0 0;
}

.page-products .prod-heading {
  max-width: 720px;
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-products .prod-heading h2 {
  margin: 10px 0 0;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  font-weight: 900;
}

.page-products .prod-heading__lead {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .note {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .prod-inline-link {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(134, 205, 184, 0.45);
}

.page-products .prod-inline-link:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

/* 五栏总览 */
.page-products .prod-stack {
  position: relative;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-products .prod-stack__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-products .prod-stack__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 26px) clamp(14px, 2vw, 22px) clamp(22px, 3vw, 30px);
  background: rgba(15, 38, 55, 0.92);
  text-decoration: none;
  color: var(--paper);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .prod-stack__cell:hover,
.page-products .prod-stack__cell:focus-visible {
  background: rgba(23, 56, 79, 0.96);
  transform: translateY(-2px);
}

.page-products .prod-stack__cell:hover::before,
.page-products .prod-stack__cell:focus-visible::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--orange);
}

.page-products .prod-stack__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-products .prod-stack__name {
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .prod-stack__use {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-products .prod-stack__cell--accent::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 8px;
  height: 8px;
  background: var(--jade);
}

/* 索引 + 错位卡片 */
.page-products .prod-columns {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
  align-items: start;
}

.page-products .prod-index {
  border: 1px solid var(--line);
  background: rgba(12, 33, 49, 0.72);
  padding: 14px;
}

.page-products .prod-index__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

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

.page-products .prod-index__list li {
  flex: 0 0 auto;
}

.page-products .prod-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .prod-index__link:hover,
.page-products .prod-index__link:focus-visible {
  border-color: var(--orange);
  color: var(--orange-soft);
}

.page-products .prod-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--jade);
}

.page-products .prod-index__note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .prod-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: clamp(20px, 3vw, 34px);
  scroll-margin-top: 90px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .prod-card + .prod-card {
  margin-top: clamp(16px, 2.5vw, 26px);
}

.page-products .prod-card:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.page-products .prod-card__num {
  display: block;
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--orange);
}

.page-products .prod-card__title {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-products .prod-card__lead {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--paper);
}

.page-products .prod-card__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .prod-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .prod-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 1px;
  background: var(--jade);
}

.page-products .prod-card__thumb {
  margin: 18px 0 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

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

.page-products .prod-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 18px 0 0;
}

.page-products .prod-card__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .prod-card__link:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

/* 双版本对照 */
.page-products .prod-shot--wide {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .prod-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(15, 38, 55, 0.6);
}

.page-products .prod-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .prod-table caption {
  text-align: left;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-products .prod-table th,
.page-products .prod-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--jade);
  background: rgba(8, 24, 38, 0.7);
}

.page-products .prod-table tbody th {
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.page-products .prod-table td {
  color: var(--mist);
  line-height: 1.65;
}

.page-products .prod-table tr.is-diff > :first-child {
  box-shadow: inset 3px 0 0 var(--jade);
}

.page-products .prod-table tr.is-diff th {
  color: var(--orange-soft);
}

.page-products .prod-fold {
  margin-top: 16px;
  border: 1px solid var(--line);
  background: var(--ink-3);
}

.page-products .prod-fold summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--paper);
}

.page-products .prod-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-fold summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--orange);
}

.page-products .prod-fold[open] summary::before {
  content: "–";
}

.page-products .prod-fold[open] {
  border-color: rgba(255, 107, 53, 0.5);
}

.page-products .prod-fold p {
  margin: 0;
  padding: 0 18px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 适用场景 */
.page-products .prod-scenes {
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-products .prod-scene {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: clamp(18px, 2.4vw, 24px);
  transition: border-color var(--dur) var(--ease);
}

.page-products .prod-scene:hover {
  border-color: var(--jade);
}

.page-products .prod-scene__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--jade);
}

.page-products .prod-scene h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.page-products .prod-scene p {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .prod-scene a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--orange-soft);
  text-decoration: none;
}

.page-products .prod-scene a:hover {
  color: var(--orange);
}

/* 维护强度 */
.page-products .prod-capacity {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-products .prod-capacity h2 {
  margin: 10px 0 0;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 900;
}

.page-products .prod-stats {
  margin: clamp(20px, 3vw, 28px) 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-stats > div {
  background: var(--ink-2);
  padding: 16px 18px;
}

.page-products .prod-stats dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-products .prod-stats dd {
  margin: 6px 0 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
}

/* 步骤 */
.page-products .prod-steps {
  display: grid;
  gap: clamp(10px, 1.8vw, 16px);
  align-items: start;
}

.page-products .prod-step {
  border: 1px solid var(--line);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease);
}

.page-products .prod-step[open] {
  border-color: rgba(255, 107, 53, 0.55);
}

.page-products .prod-step summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 18px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-products .prod-step summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-products .prod-step__title {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .prod-step p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

/* 收尾 */
.page-products .prod-cta {
  padding-bottom: clamp(12px, 3vw, 28px);
}

.page-products .prod-cta__inner {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  background: var(--ink-2);
  padding: clamp(24px, 4vw, 44px);
}

.page-products .prod-cta h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 900;
}

.page-products .prod-cta__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 60ch;
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

/* 响应式 */
@media (min-width: 620px) {
  .page-products .prod-intro__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

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

@media (min-width: 640px) {
  .page-products .prod-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-products .prod-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-products .prod-stack {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .prod-intro__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-products .prod-capacity {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

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

@media (min-width: 980px) {
  .page-products .prod-columns {
    grid-template-columns: minmax(0, var(--rail)) minmax(0, 1fr);
  }

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

  .page-products .prod-index__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-products .prod-card:nth-child(even) {
    margin-left: clamp(24px, 4vw, 48px);
  }
}

@media (min-width: 1040px) {
  .page-products .prod-scenes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .prod-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-card,
  .page-products .prod-stack__cell,
  .page-products .prod-scene,
  .page-products .prod-step {
    transition: none;
  }

  .page-products .prod-card:hover,
  .page-products .prod-stack__cell:hover {
    transform: none;
  }
}