.page-products {
  --pr-rail-w: 288px;
  --pr-line: 1px solid var(--c-grid);
  --pr-line-soft: 1px solid var(--c-grid-dim);
  --pr-gap: 24px;
  --pr-lift: translateY(-2px);
  background: var(--c-abyss);
  color: var(--c-text);
  font-family: var(--font-cn);
  line-height: 1.9;
  overflow-wrap: break-word;
  word-break: break-word;
}

.page-products .prose {
  font-size: 17px;
  line-height: 1.9;
  color: var(--c-text);
  max-width: 66ch;
}

.page-products .prose--tight {
  max-width: 48ch;
  font-size: 16px;
}

.page-products a {
  color: var(--c-coral-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products a:hover,
.page-products a:focus-visible {
  color: var(--c-coral);
}

.page-products .btn:focus-visible,
.page-products a:focus-visible,
.page-products summary:focus-visible,
.page-products .pr-cards:focus-visible {
  outline: 2px solid var(--c-coral);
  outline-offset: 3px;
}

.page-products h2 {
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.24;
  margin: 12px 0 18px;
  color: var(--c-text);
}

.page-products h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin: 0 0 10px;
}

.page-products .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  position: relative;
  padding: 28px 0 0;
  border-bottom: var(--pr-line);
  background: linear-gradient(180deg, #08203a 0%, var(--c-abyss) 68%);
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(20, 69, 111, 0.42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 69, 111, 0.42) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.15) 82%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.15) 82%, transparent 100%);
  pointer-events: none;
}

.page-products .pr-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-products .pr-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-bottom: 40px;
}

.page-products .pr-hero__main {
  order: 1;
  min-width: 0;
}

.page-products .pr-hero__rail,
.page-products .pr-rail {
  order: 2;
}

.page-products .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  font-size: 13px;
  color: var(--c-fog);
}

.page-products .breadcrumb__link {
  color: var(--c-fog);
  text-decoration: none;
}

.page-products .breadcrumb__link:hover {
  color: var(--c-coral);
}

.page-products .breadcrumb__sep {
  color: var(--c-fog-dim);
}

.page-products .breadcrumb__current {
  color: var(--c-text);
}

.page-products .pr-hero__kicker {
  color: var(--c-fog);
  margin: 0 0 14px;
}

.page-products h1 {
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.16;
  margin: 0 0 22px;
  max-width: 20ch;
  color: var(--c-text);
}

.page-products .pr-hero__lead {
  font-size: 17px;
  line-height: 1.9;
  max-width: 62ch;
  color: #c9d8e6;
  margin: 0 0 30px;
}

.page-products .pr-hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--pr-line);
  border-left: var(--pr-line);
}

.page-products .pr-hero__strip li {
  flex: 1 1 128px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-right: var(--pr-line);
  border-bottom: var(--pr-line);
  font-size: 14px;
  color: var(--c-fog);
}

.page-products .pr-hero__strip .mono {
  font-size: 12px;
  color: var(--c-coral);
}

.page-products .pr-rail {
  align-self: start;
  border: var(--pr-line);
  border-top: 2px solid var(--c-coral);
  background: var(--c-panel);
  padding: 22px 20px 24px;
}

.page-products .pr-rail__status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  margin: 14px 0 4px;
}

.page-products .pr-rail__dot {
  width: 10px;
  height: 10px;
  background: var(--c-mint);
  box-shadow: 0 0 0 4px rgba(63, 216, 168, 0.14);
  animation: pr-breathe 2.4s var(--ease) infinite;
}

.page-products .pr-rail__meta {
  font-size: 12px;
  color: var(--c-fog);
  margin: 0 0 20px;
}

.page-products .pr-rail__cta {
  display: block;
  text-align: center;
  text-decoration: none;
  padding: 12px 16px;
  border: 1px solid var(--c-coral);
  background: var(--c-coral);
  color: #17202a;
  font-weight: 800;
  font-size: 15px;
  transition: transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-products .pr-rail__cta:hover {
  transform: var(--pr-lift);
  background: var(--c-coral-soft);
  border-color: var(--c-coral-soft);
  color: #17202a;
}

.page-products .pr-rail__note {
  font-size: 13px;
  color: var(--c-fog);
  line-height: 1.8;
  margin: 12px 0 0;
}

.page-products .pr-rail__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 22px 0 0;
  border-top: var(--pr-line-soft);
  padding-top: 16px;
}

.page-products .pr-rail__facts div {
  padding-right: 12px;
  border-right: var(--pr-line-soft);
}

.page-products .pr-rail__facts div:last-child {
  border-right: 0;
  padding-left: 12px;
  padding-right: 0;
}

.page-products .pr-rail__facts dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-fog-dim);
  margin-bottom: 2px;
}

.page-products .pr-rail__facts dd {
  margin: 0;
  font-size: 22px;
  color: var(--c-text);
}

@keyframes pr-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.42; }
}

/* ---------- 准备清单 ---------- */
.page-products .pr-prep {
  padding: 72px 0;
  background: var(--c-paper);
  color: var(--c-ink);
  border-bottom: var(--pr-line);
}

.page-products .pr-prep h2 {
  color: var(--c-ink);
}

.page-products .pr-prep .prose {
  color: #3a3229;
}

.page-products .pr-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-products .pr-prep__head .index-label {
  color: #6c5f50;
}

.page-products .pr-prep__fig {
  margin: 28px 0 0;
}

.page-products .pr-prep__fig .fig-frame__cap {
  color: #5d5245;
}

.page-products .pr-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid #cfc5b4;
}

.page-products .pr-prep__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 0 16px;
  padding: 22px 0;
  border-bottom: 1px solid #cfc5b4;
}

.page-products .pr-prep__num {
  font-size: 20px;
  color: var(--c-coral);
  line-height: 1.3;
}

.page-products .pr-prep__item h3 {
  grid-column: 2;
  color: var(--c-ink);
  margin-bottom: 6px;
}

.page-products .pr-prep__item p {
  grid-column: 2;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: #3a3229;
}

/* ---------- 五步流程 ---------- */
.page-products .pr-flow {
  padding: 72px 0 80px;
  border-bottom: var(--pr-line);
}

.page-products .pr-flow__intro {
  max-width: 62ch;
  margin-bottom: 34px;
}

.page-products .pr-flow__intro .prose {
  color: #c9d8e6;
}

.page-products .pr-flow__fig {
  margin: 0 0 48px;
}

.page-products .pr-flow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-products .pr-toc {
  border: var(--pr-line);
  background: var(--c-panel);
  padding: 18px;
}

.page-products .pr-toc .index-label {
  color: var(--c-fog);
  margin: 0 0 12px;
}

.page-products .pr-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.page-products .pr-toc__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: var(--pr-line-soft);
  color: var(--c-text);
  text-decoration: none;
  white-space: nowrap;
  font-size: 14px;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-products .pr-toc__link .mono {
  font-size: 12px;
  color: var(--c-fog);
}

.page-products .pr-toc__link:hover,
.page-products .pr-toc__link:focus-visible {
  border-color: var(--c-coral);
  border-left: 3px solid var(--c-coral);
  color: var(--c-coral);
  transform: var(--pr-lift);
}

.page-products .pr-flow__body {
  min-width: 0;
  display: grid;
  gap: 0;
}

.page-products .pr-step {
  padding: 30px 0 26px;
  border-top: var(--pr-line);
}

.page-products .pr-step:last-child {
  border-bottom: var(--pr-line);
}

.page-products .pr-step__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.page-products .pr-step__num {
  font-size: 15px;
  color: var(--c-coral);
}

.page-products .pr-step__head h3 {
  margin: 0;
  font-size: 24px;
  flex: 1 1 auto;
}

.page-products .pr-step__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-products .pr-step__text p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.9;
  color: #c9d8e6;
  max-width: 64ch;
}

.page-products .pr-step__say {
  display: grid;
  gap: 2px;
  border-left: 2px solid var(--c-grid);
  padding-left: 14px;
  font-size: 15px;
}

.page-products .pr-step__say .index-label {
  color: var(--c-fog-dim);
}

.page-products .pr-step__fig {
  width: 100%;
  max-width: 240px;
  height: auto;
  color: var(--c-fog-dim);
  border: var(--pr-line-soft);
  background: var(--c-panel);
  padding: 10px;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-products .pr-step:hover .pr-step__fig {
  color: var(--c-fog);
  border-color: var(--c-grid);
}

.page-products .pr-step__lamp {
  color: var(--c-mint);
}

/* ---------- 桌面端 ---------- */
.page-products .pr-desktop {
  padding: 72px 0;
  background: var(--c-panel);
  border-bottom: var(--pr-line);
}

.page-products .pr-desktop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.page-products .pr-desktop__text .prose {
  color: #c9d8e6;
  margin-bottom: 16px;
}

.page-products .pr-desktop__points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: var(--pr-line-soft);
}

.page-products .pr-desktop__points li {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: var(--pr-line-soft);
  font-size: 15px;
  color: #c9d8e6;
}

.page-products .pr-desktop__points .mono {
  color: var(--c-coral);
}

.page-products .pr-desktop__fig {
  margin: 0;
}

/* ---------- 手机版 ---------- */
.page-products .pr-mobile {
  padding: 72px 0;
  border-bottom: var(--pr-line);
}

.page-products .pr-mobile__intro {
  max-width: 62ch;
  margin-bottom: 32px;
}

.page-products .pr-mobile__intro .prose {
  color: #c9d8e6;
}

.page-products .pr-mobile__scroller-wrap {
  position: relative;
}

.page-products .pr-cards {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 0 18px;
  scrollbar-width: thin;
}

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

.page-products .pr-cards::-webkit-scrollbar-thumb {
  background: var(--c-grid);
}

.page-products .pr-card {
  flex: 0 0 78%;
  scroll-snap-align: start;
  aspect-ratio: 4 / 5;
  display: flex;
  flex-direction: column;
  border: var(--pr-line);
  background: var(--c-panel);
  padding: 20px 18px;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-products .pr-card:hover {
  border-color: var(--c-coral);
  transform: var(--pr-lift);
}

.page-products .pr-card .index-label {
  color: var(--c-fog-dim);
  margin: 0 0 14px;
}

.page-products .pr-card h3 {
  font-size: 21px;
  margin-bottom: 12px;
  color: var(--c-text);
}

.page-products .pr-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #b9cadb;
}

.page-products .pr-card .tag {
  margin-top: auto;
  align-self: flex-start;
}

.page-products .pr-mobile__hint {
  color: var(--c-fog-dim);
  margin: 4px 0 0;
}

.page-products .pr-mobile__sizes {
  margin-top: 34px;
}

.page-products .pr-mobile__sizes .prose {
  color: #c9d8e6;
  max-width: 66ch;
}

/* ---------- 订阅 ---------- */
.page-products .pr-sub {
  padding: 72px 0;
  background: var(--c-paper);
  color: var(--c-ink);
  border-bottom: var(--pr-line);
}

.page-products .pr-sub__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.page-products .pr-sub h2 {
  color: var(--c-ink);
}

.page-products .pr-sub .index-label {
  color: #6c5f50;
}

.page-products .pr-sub__text .prose {
  color: #3a3229;
  margin-bottom: 22px;
}

.page-products .pr-sub__fig {
  margin: 0;
}

.page-products .pr-sub__fig .fig-frame__cap {
  color: #5d5245;
}

.page-products .pr-sub__steps {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-top: 1px solid #cfc5b4;
}

.page-products .pr-sub__steps li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid #cfc5b4;
  font-size: 16px;
  color: #3a3229;
}

.page-products .pr-sub__steps .mono {
  color: var(--c-coral);
  font-size: 14px;
}

.page-products .pr-sub__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: #4a4034;
  border-left: 3px solid var(--c-coral);
  padding-left: 16px;
}

/* ---------- 适配 ---------- */
.page-products .pr-adapt {
  padding: 72px 0;
  border-bottom: var(--pr-line);
}

.page-products .pr-adapt__head {
  max-width: 62ch;
  margin-bottom: 32px;
}

.page-products .pr-adapt__head .prose {
  color: #c9d8e6;
}

.page-products .pr-lamps {
  list-style: none;
  margin: 0 0 44px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--pr-line);
  border-left: var(--pr-line);
}

.page-products .pr-lamp {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-right: var(--pr-line);
  border-bottom: var(--pr-line);
  background: var(--c-panel);
  font-size: 15px;
  cursor: default;
  transition: background 0.2s var(--ease);
}

.page-products .pr-lamp:hover,
.page-products .pr-lamp:focus-within {
  background: #123a61;
}

.page-products .pr-lamp__dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
}

.page-products .pr-lamp--ok .pr-lamp__dot {
  background: var(--c-mint);
  box-shadow: 0 0 0 4px rgba(63, 216, 168, 0.13);
}

.page-products .pr-lamp--mute .pr-lamp__dot {
  background: var(--c-fog-dim);
}

.page-products .pr-lamp__name {
  color: var(--c-text);
}

.page-products .pr-lamp__tip {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: calc(100% + 8px);
  z-index: 3;
  border: 1px solid var(--c-coral);
  background: #0a2440;
  color: var(--c-text);
  font-size: 13px;
  line-height: 1.7;
  padding: 10px 12px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s var(--ease), visibility 0.2s var(--ease);
  pointer-events: none;
}

.page-products .pr-lamp:hover .pr-lamp__tip,
.page-products .pr-lamp:focus-within .pr-lamp__tip {
  opacity: 1;
  visibility: visible;
}

.page-products .pr-adapt__fig {
  margin: 0 0 44px;
}

.page-products .pr-adapt__fix h3 {
  font-size: 22px;
  margin-bottom: 16px;
}

.page-products .pr-fold {
  border-top: var(--pr-line);
  background: var(--c-panel);
  border-left: var(--pr-line);
  border-right: var(--pr-line);
}

.page-products .pr-fold:last-of-type {
  border-bottom: var(--pr-line);
}

.page-products .pr-fold summary {
  cursor: pointer;
  padding: 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

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

.page-products .pr-fold summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--c-coral);
  width: 16px;
  flex: 0 0 auto;
}

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

.page-products .pr-fold summary:hover {
  color: var(--c-coral-soft);
  background: #123a61;
}

.page-products .pr-fold p {
  margin: 0;
  padding: 0 16px 18px 44px;
  font-size: 15px;
  line-height: 1.9;
  color: #b9cadb;
}

/* ---------- 求助 ---------- */
.page-products .pr-help {
  padding: 72px 0 84px;
  background: linear-gradient(180deg, #08203a 0%, var(--c-abyss) 100%);
}

.page-products .pr-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.page-products .pr-help__text .prose {
  color: #c9d8e6;
  margin-bottom: 18px;
}

.page-products .pr-help__need {
  list-style: none;
  margin: 24px 0 28px;
  padding: 0;
  border-top: var(--pr-line);
}

.page-products .pr-help__need li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: var(--pr-line);
  font-size: 15px;
  color: #c9d8e6;
}

.page-products .pr-help__need .mono {
  color: var(--c-coral);
  font-size: 13px;
}

.page-products .pr-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pr-help__links .btn {
  text-decoration: none;
}

.page-products .pr-help__aside {
  border: var(--pr-line);
  border-top: 2px solid var(--c-mint);
  background: var(--c-panel);
  padding: 22px 20px 26px;
}

.page-products .pr-help__aside .index-label {
  color: var(--c-mint);
}

.page-products .pr-help__hours {
  font-size: 15px;
  line-height: 1.85;
  color: #c9d8e6;
  margin: 14px 0 20px;
}

.page-products .pr-help__dl {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: var(--pr-line-soft);
}

.page-products .pr-help__dl li {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-bottom: var(--pr-line-soft);
}

.page-products .pr-help__key {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-fog-dim);
}

.page-products .pr-help__val {
  font-size: 14px;
  color: var(--c-text);
}

.page-products .pr-help__note {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-fog);
  margin: 0 0 14px;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pr-lamps {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .pr-card {
    flex: 0 0 46%;
  }

  .page-products .pr-hero__strip li {
    flex: 1 1 0;
  }
}

@media (min-width: 900px) {
  .page-products .pr-hero {
    padding-top: 44px;
  }

  .page-products .pr-hero__grid {
    grid-template-columns: var(--pr-rail-w) minmax(0, 1fr);
    gap: 48px;
    padding-bottom: 64px;
    align-items: start;
  }

  .page-products .pr-hero__main {
    order: 2;
  }

  .page-products .pr-hero__rail {
    order: 1;
  }

  .page-products .pr-prep__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-products .pr-flow__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .pr-toc {
    position: sticky;
    top: 104px;
  }

  .page-products .pr-toc__list {
    flex-direction: column;
    overflow: visible;
    gap: 4px;
  }

  .page-products .pr-toc__link {
    border-color: transparent;
    border-left: 2px solid var(--c-grid-dim);
  }

  .page-products .pr-step__body {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 32px;
    align-items: start;
  }

  .page-products .pr-desktop__grid {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 56px;
  }

  .page-products .pr-sub__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 56px;
  }

  .page-products .pr-card {
    flex: 0 0 31%;
  }

  .page-products .pr-lamps {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .pr-help__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-products .pr-help__aside {
    position: sticky;
    top: 104px;
  }
}

@media (min-width: 1140px) {
  .page-products .pr-card {
    flex: 0 0 24%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-rail__dot {
    animation: none;
  }

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