.page-products {
  --pp-gap: 18px;
  --pp-tint: rgba(201, 247, 59, 0.08);
  --pp-line-soft: rgba(169, 183, 190, 0.22);
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  position: relative;
  isolation: isolate;
  padding: 26px 0 0;
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 82%;
  background: linear-gradient(158deg, var(--night) 0%, rgba(14, 27, 44, 0.25) 68%, rgba(10, 31, 25, 0) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 0 100%);
  z-index: -1;
}

.page-products .pr-hero__inner {
  display: grid;
  gap: 26px;
  padding-bottom: 30px;
}

.page-products .pr-hero__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 9vw, 62px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 10px 0 14px;
}

.page-products .pr-hero__copy .lede {
  max-width: 34em;
}

.page-products .pr-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-products .pr-hero__stat {
  align-self: end;
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.page-products .pr-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(56px, 16vw, 118px);
  line-height: 0.86;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-products .pr-hero__unit {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--silver);
}

.page-products .pr-hero__sub {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 筛选条 ---------- */
.page-products .pr-filter {
  margin-bottom: 26px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 49, 40, 0.66);
}

.page-products .pr-filter__label {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-products .pr-chiprow {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.page-products .pr-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--lime-dim);
  border-radius: var(--radius);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .pr-chip__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-products .pr-chip:hover,
.page-products .pr-chip:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
  background: var(--pp-tint);
}

/* ---------- 图片容器 ---------- */
.page-products .pr-shot {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
}

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

.page-products .pr-shot figcaption {
  padding: 10px 13px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--silver);
}

.page-products .pr-shot--wide {
  margin-bottom: 8px;
}

/* ---------- 章节通用 ---------- */
.page-products .pr-section {
  padding: 48px 0 8px;
}

.page-products .pr-body {
  max-width: var(--measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.86;
}

.page-products .pr-body a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-dim);
}

.page-products .pr-body a:hover {
  border-bottom-color: var(--lime);
}

.page-products .pr-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 筛选维度 ---------- */
.page-products .pr-filters__body {
  margin-top: 24px;
  display: grid;
  gap: 22px;
}

.page-products .pr-dims {
  display: grid;
  gap: var(--pp-gap);
  grid-template-columns: 1fr;
}

.page-products .pr-dim {
  border-left: 2px solid var(--line);
  padding: 4px 0 4px 14px;
  transition: border-color var(--dur) var(--ease);
}

.page-products .pr-dim:hover {
  border-left-color: var(--lime);
}

.page-products .pr-dim__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-products .pr-dim__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .pr-dim__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 三辑 ---------- */
.page-products .pr-set {
  margin-top: 38px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-products .pr-set:first-of-type {
  border-top: 0;
  padding-top: 8px;
}

.page-products .pr-set__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.page-products .pr-set__index {
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  color: var(--lime);
  letter-spacing: 0.02em;
}

.page-products .pr-set__name {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.3;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-products .pr-set__line {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-products .pr-set__grid {
  display: grid;
  gap: var(--pp-gap);
  grid-template-columns: 1fr;
  padding-bottom: 6px;
}

/* ---------- 卡片 ---------- */
.page-products .pr-card {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .pr-card:hover {
  border-color: var(--lime);
  box-shadow: var(--shadow-1);
  transform: translateY(-2px);
}

.page-products .pr-card--lead {
  background: linear-gradient(180deg, rgba(201, 247, 59, 0.05) 0%, rgba(18, 49, 40, 0.9) 46%);
  border-color: var(--pp-line-soft);
}

.page-products .pr-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-products .pr-card__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .pr-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--silver);
}

.page-products .pr-card__sum {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  opacity: 0.84;
}

.page-products .pr-card__more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-products .pr-card__more summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

.page-products .pr-card__more summary::-webkit-details-marker {
  display: none;
}

.page-products .pr-card__more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--lime);
}

.page-products .pr-card__more[open] summary::after {
  content: "–";
}

.page-products .pr-card__more ul {
  margin: 12px 0 0;
  padding-left: 1.1em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

.page-products .pr-card__more li::marker {
  color: var(--orange);
}

.page-products .pr-card__more li + li {
  margin-top: 6px;
}

/* ---------- 卡片结构说明 ---------- */
.page-products .pr-cards__layout {
  display: grid;
  gap: 26px;
  grid-template-columns: 1fr;
}

.page-products .pr-anatomy {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.page-products .pr-anatomy dt {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-products .pr-anatomy dd {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 常用组合 ---------- */
.page-products .pr-combo {
  margin-top: 24px;
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

.page-products .pr-combo__list {
  margin: 20px 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-products .pr-combo__list li {
  position: relative;
  padding: 12px 0 12px 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  opacity: 0.88;
  border-bottom: 1px solid var(--line);
}

.page-products .pr-combo__list li:last-child {
  border-bottom: 0;
}

.page-products .pr-combo__list li::before {
  content: "";
  position: absolute;
  left: -3px;
  top: 20px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
}

.page-products .pr-combo__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--silver);
}

/* ---------- 最短路径 ---------- */
.page-products .pr-path {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--night);
}

.page-products .pr-path__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 6vw, 34px);
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-products .pr-path__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-products .pr-path__marks {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-products .pr-path__mark {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-products .pr-path__mark:last-child {
  border-bottom: 0;
}

.page-products .pr-path__mark .data {
  display: inline-block;
  min-width: 4.5em;
  color: var(--orange);
}

/* ---------- 反馈 ---------- */
.page-products .pr-help {
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
  border-radius: var(--radius);
  background: rgba(14, 27, 44, 0.7);
}

.page-products .pr-help__title {
  margin: 10px 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(23px, 5.6vw, 30px);
  line-height: 1.3;
  color: var(--mist);
}

.page-products .pr-help__contact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 20px 0 4px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-products .pr-help__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-products .pr-help__val {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-dim);
}

.page-products .pr-help__val:hover {
  border-bottom-color: var(--lime);
}

.page-products .pr-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 窄屏兜底 ---------- */
.page-products .pr-chiprow,
.page-products .pr-hero__cta,
.page-products .pr-path__links,
.page-products .pr-help__links {
  -ms-overflow-style: none;
  scrollbar-width: thin;
}

.page-products .pr-chiprow::-webkit-scrollbar {
  height: 4px;
}

.page-products .pr-chiprow::-webkit-scrollbar-thumb {
  background: var(--line);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-products .pr-dims {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .pr-set__grid > .pr-card--lead {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-products .pr-hero {
    padding-top: 34px;
  }

  .page-products .pr-hero__inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
    gap: 40px;
    padding-bottom: 40px;
  }

  .page-products .pr-hero__stat {
    text-align: right;
    border-left: 0;
    border-right: 1px solid var(--line);
    padding-left: 0;
    padding-right: 20px;
  }

  .page-products .pr-section {
    padding: 76px 0 12px;
  }

  .page-products .pr-filters__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .pr-set__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
    gap: 22px;
    padding-bottom: 18px;
  }

  .page-products .pr-set__grid > .pr-card--lead {
    grid-column: 1;
    grid-row: 1 / span 3;
  }

  .page-products .pr-set__grid > .pr-card:nth-child(2) {
    grid-column: 2;
    margin-top: 0;
  }

  .page-products .pr-set__grid > .pr-card:nth-child(3) {
    grid-column: 2;
    margin-top: 18px;
  }

  .page-products .pr-set__grid > .pr-card:nth-child(4) {
    grid-column: 2;
    margin-top: -8px;
  }

  .page-products .pr-cards__layout {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .pr-combo {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 34px;
    align-items: center;
  }

  .page-products .pr-path {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 36px;
    padding: 40px 34px;
  }

  .page-products .pr-path__marks {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 24px;
  }

  .page-products .pr-help {
    padding: 40px 34px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .pr-card,
  .page-products .pr-chip,
  .page-products .pr-dim {
    transition: none;
  }

  .page-products .pr-card:hover {
    transform: none;
  }
}