.page-products {
  --pp-gap: 72px;
  --pp-radius: var(--r-card);
  --pp-chip: var(--r-chip);
  padding-bottom: 120px;
}

.page-products .shell {
  min-width: 0;
}

/* 面包屑 */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 28px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-products .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-products .breadcrumb__sep {
  color: var(--line);
}

/* 首屏 */
.page-products .prod-hero {
  display: grid;
  gap: 26px;
  padding: 34px 0 60px;
}

.page-products .prod-hero__kicker {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-products .prod-hero h1 {
  margin: 0 0 22px;
  max-width: 16em;
  font-size: clamp(30px, 8vw, 64px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-products .prod-hero h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin-top: 22px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--red-action));
}

.page-products .prod-hero__lede {
  margin: 0;
  max-width: var(--measure);
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
  opacity: 0.9;
}

.page-products .prod-hero__aside {
  display: flex;
  align-items: center;
  gap: 20px;
}

.page-products .prod-hero__aside .anno {
  display: none;
  writing-mode: vertical-rl;
  letter-spacing: 0.32em;
  font-size: 12px;
  color: var(--muted);
}

.page-products .prod-hero__badge {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid rgba(232, 180, 74, 0.35);
  border-radius: var(--pp-chip);
  background: linear-gradient(150deg, rgba(142, 27, 46, 0.4), rgba(23, 15, 36, 0.72));
}

.page-products .prod-hero__badge-num {
  font-family: var(--font-num);
  font-size: 32px;
  line-height: 1;
  color: var(--gold-soft);
}

.page-products .prod-hero__badge-txt {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* 主体：侧栏 + 卡片流 */
.page-products .prod-body {
  display: grid;
  gap: 36px;
  min-width: 0;
}

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

.page-products .prod-rail__hint {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.page-products .prod-rail__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

.page-products .prod-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: var(--pp-chip);
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.22s var(--ease), background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-products .prod-rail__idx {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--gold);
}

.page-products .prod-rail__idx::after {
  content: "";
  width: 8px;
  height: 2px;
  background: var(--gold);
  transition: width 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-products .prod-rail__link:hover,
.page-products .prod-rail__link:focus-visible {
  color: var(--text);
  border-color: var(--line);
  background: linear-gradient(90deg, rgba(142, 27, 46, 0.42), rgba(23, 15, 36, 0));
  outline: none;
}

.page-products .prod-rail__link:hover .prod-rail__idx::after,
.page-products .prod-rail__link:focus-visible .prod-rail__idx::after {
  width: 24px;
  background: var(--red-action);
}

.page-products .prod-rail__cta {
  display: none;
}

.page-products .prod-stack {
  display: flex;
  flex-direction: column;
  gap: var(--pp-gap);
  min-width: 0;
}

/* 章节 */
.page-products .chapter {
  scroll-margin-top: 88px;
  min-width: 0;
}

.page-products .chapter__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 18px;
}

.page-products .chapter__num {
  font-family: var(--font-num);
  font-size: clamp(36px, 9vw, 62px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--gold);
  transition: color 0.24s var(--ease);
}

.page-products .chapter:target .chapter__num {
  color: var(--red-action);
}

.page-products .chapter__title {
  margin: 0;
  font-size: clamp(22px, 4.6vw, 32px);
  font-weight: 700;
  line-height: 1.28;
  color: var(--text);
}

.page-products .lede {
  margin: 0 0 32px;
  max-width: var(--measure);
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
  opacity: 0.9;
}

.page-products .prose {
  margin: 0 0 16px;
  max-width: var(--measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  opacity: 0.88;
}

.page-products .prose:last-child {
  margin-bottom: 0;
}

/* 图片 */
.page-products .media {
  margin: 0;
}

.page-products .media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
}

.page-products .media__caption {
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-products .prod-figure {
  margin-bottom: 44px;
}

/* 功能总览卡片 */
.page-products .prod-index {
  display: grid;
  gap: 18px;
}

.page-products .prod-index__item {
  position: relative;
  padding: 26px 24px 22px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-products .prod-index__item::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 0;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--gold), rgba(232, 180, 74, 0));
  opacity: 0.6;
}

.page-products .prod-index__item:hover,
.page-products .prod-index__item:focus-within {
  border-color: var(--neon);
  transform: translateY(-3px);
}

.page-products .prod-index__no {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .prod-index__title {
  margin: 10px 0 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.page-products .prod-index__loc {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .prod-index__loc b {
  color: var(--gold-soft);
  font-weight: 600;
}

.page-products .prod-index__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
  opacity: 0.86;
}

.page-products .dev-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .dev-tag {
  padding: 5px 13px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: rgba(35, 43, 84, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--pp-chip);
}

.page-products .dev-tag--apple {
  color: var(--gold-soft);
  border-color: rgba(232, 180, 74, 0.45);
}

/* 通用双栏 */
.page-products .prod-two {
  align-items: start;
  gap: 28px;
}

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

.page-products .prod-list {
  display: grid;
  gap: 12px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  opacity: 0.88;
}

.page-products .prod-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--gold);
}

/* 比查记录 */
.page-products .prod-record {
  display: grid;
  gap: 28px;
}

.page-products .prod-facts {
  margin: 24px 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .prod-facts__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .prod-facts dt {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-products .prod-facts dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--gold-soft);
  text-align: right;
}

/* 索引能力两块面板 */
.page-products .prod-panels {
  display: grid;
  gap: 18px;
  margin-top: 8px;
}

.page-products .prod-panel {
  padding: 24px 22px;
  background: var(--ink-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
  transition: border-color 0.22s var(--ease);
}

.page-products .prod-panel:hover {
  border-color: var(--neon);
}

.page-products .prod-panel__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .prod-panel__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
}

.page-products .prod-panel__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .prod-index-note {
  margin-top: 24px;
}

/* 跨设备同步 */
.page-products .prod-copy {
  margin-top: 24px;
}

/* 对照卡 */
.page-products .prod-compare {
  margin-top: 56px;
}

.page-products .prod-compare__head {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .prod-compare__track {
  display: flex;
  gap: 16px;
  padding-bottom: 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-compare__col {
  flex: 0 0 82%;
  scroll-snap-align: start;
  padding: 24px 22px;
  background: var(--ink-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
}

.page-products .prod-compare__col--new {
  background: linear-gradient(155deg, rgba(142, 27, 46, 0.42), rgba(27, 24, 41, 0.95));
  border-color: rgba(232, 180, 74, 0.32);
}

.page-products .prod-compare__label {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
}

.page-products .prod-compare__steps {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding-left: 18px;
}

.page-products .prod-compare__steps li {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
  opacity: 0.88;
}

.page-products .prod-compare__link {
  flex: 0 0 56px;
  align-self: center;
  width: 56px;
  height: auto;
}

.page-products .prod-compare__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* 场景 */
.page-products .prod-scenes {
  display: grid;
  gap: 18px;
}

.page-products .prod-scene {
  padding: 26px 24px;
  background: linear-gradient(170deg, rgba(35, 43, 84, 0.55), rgba(27, 24, 41, 0.95));
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
  transition: border-color 0.22s var(--ease);
}

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

.page-products .prod-scene__tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 5px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
  background: rgba(200, 32, 60, 0.28);
  border: 1px solid rgba(232, 180, 74, 0.3);
  border-radius: var(--pp-chip);
}

.page-products .prod-scene__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
}

.page-products .prod-scene__text {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .prod-scene__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-products .prod-scene__link::after {
  content: "→";
  transition: transform 0.22s var(--ease);
}

.page-products .prod-scene__link:hover,
.page-products .prod-scene__link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.page-products .prod-scene__link:hover::after,
.page-products .prod-scene__link:focus-visible::after {
  transform: translateX(4px);
}

/* 结尾引导 */
.page-products .prod-cta {
  margin-top: 88px;
  padding: 40px 26px;
  border: 1px solid rgba(232, 180, 74, 0.28);
  border-radius: var(--pp-radius);
  background: linear-gradient(150deg, rgba(142, 27, 46, 0.35), rgba(23, 15, 36, 0.92) 62%, rgba(107, 76, 230, 0.22));
}

.page-products .prod-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 700;
  color: var(--text);
}

.page-products .prod-cta p {
  margin: 0 0 24px;
  max-width: var(--measure);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .prod-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 响应式 */
@media (min-width: 720px) {
  .page-products .prod-hero__aside .anno {
    display: inline-block;
  }

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

@media (min-width: 860px) {
  .page-products .prod-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
    gap: 48px;
    padding: 56px 0 88px;
  }

  .page-products .prod-hero__aside {
    justify-content: flex-end;
    padding-bottom: 10px;
  }

  .page-products .prod-record {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 40px;
  }

  .page-products .prod-compare__track {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 56px minmax(0, 1fr);
    align-items: center;
    gap: 24px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .prod-compare__col {
    flex: none;
    scroll-snap-align: none;
    padding: 28px 26px;
  }

  .page-products .prod-compare__link {
    flex: none;
    justify-self: center;
  }

  .page-products .prod-cta {
    padding: 48px 40px;
  }
}

@media (min-width: 1040px) {
  .page-products .prod-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-products .prod-rail {
    position: sticky;
    top: 40px;
  }

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

  .page-products .prod-rail__list li {
    flex: none;
  }

  .page-products .prod-rail__link {
    width: 100%;
    padding: 10px 12px;
  }

  .page-products .prod-rail__cta {
    display: inline-flex;
    width: 100%;
    margin-top: 26px;
    justify-content: center;
  }

  .page-products .prod-stack {
    gap: 96px;
  }
}