.page-products {
  --prod-rail: 214px;
  --prod-card-gap: 22px;
  --prod-cut: 14px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(48px, 7vw, 88px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(198, 255, 61, 0.09), transparent 58%),
    radial-gradient(90% 70% at 8% 100%, rgba(255, 90, 43, 0.07), transparent 60%);
}

.page-products .prod-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  margin-top: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-products .prod-hero-copy .t-display {
  margin: 14px 0 20px;
}

.page-products .prod-hero-copy .t-display b {
  color: var(--lime);
  font-weight: 800;
}

.page-products .prod-hero-copy .lede {
  max-width: 62ch;
}

.page-products .prod-quickpanel {
  padding: clamp(20px, 3vw, 28px);
  border-left: 2px solid var(--lime);
}

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

.page-products .prod-stats li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-stats li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .prod-stat-num {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1;
  color: var(--white);
  font-weight: 700;
}

.page-products .prod-stat-label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ash);
}

.page-products .prod-quickpanel .note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

/* ---------- 分类总览 ---------- */
.page-products .prod-hero-media {
  margin: 0 0 clamp(36px, 6vw, 64px);
  aspect-ratio: 14 / 9;
}

.page-products .prod-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .shelf {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-products .cat-rail {
  display: grid;
  gap: 12px;
  padding: 18px 18px 16px;
  background: var(--moss);
  border-right: 1px solid var(--line);
}

.page-products .cat-rail-title {
  margin: 0 0 4px;
  color: var(--lime);
}

.page-products .cat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 6px;
}

.page-products .cat-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--fog);
  text-decoration: none;
  font-size: 14px;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--prod-cut)), calc(100% - var(--prod-cut)) 100%, 0 100%);
  transition: color 160ms ease, border-color 160ms ease, transform 160ms ease, background-color 160ms ease;
}

.page-products .cat-item .cat-num {
  color: var(--ash);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-products .cat-item:hover,
.page-products .cat-item:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
  background: rgba(198, 255, 61, 0.06);
  transform: translateX(3px);
}

.page-products .cat-item:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-products .cat-rail-note {
  margin: 6px 0 0;
  font-size: 13px;
}

.page-products .cat-rail-note a {
  color: var(--lime-dim);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .shelf-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--prod-card-gap);
}

.page-products .shelf-card {
  padding: clamp(20px, 3vw, 26px);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 180ms ease, box-shadow 180ms ease, outline-color 180ms ease;
  outline: 1px solid transparent;
  outline-offset: -1px;
}

.page-products .shelf-card:hover,
.page-products .shelf-card:focus-within {
  transform: translateY(-4px);
  outline-color: var(--lime);
}

.page-products .shelf-card:nth-child(3n + 2) {
  background: var(--moss);
}

.page-products .shelf-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .shelf-num {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-products .tag-row {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  color: var(--ash);
  border: 1px solid var(--line);
}

.page-products .shelf-card .t-h3 {
  margin: 0;
  color: var(--white);
}

.page-products .shelf-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-products .shelf-meta {
  margin: 0;
  display: grid;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-products .shelf-meta > div {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-products .shelf-meta dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ash);
}

.page-products .shelf-meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fog);
}

.page-products .shelf-card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-products .prod-tactics-media {
  margin: 4px 0;
  aspect-ratio: 4 / 3;
}

.page-products .prod-tactics-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 苹果适配 ---------- */
.page-products .apple-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-products .apple-copy .t-h2 {
  margin: 14px 0 18px;
}

.page-products .apple-copy .prose {
  margin: 0 0 26px;
}

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

.page-products .apple-item {
  padding: 18px 20px;
  border-left: 2px solid var(--lime-dim);
}

.page-products .apple-item p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog);
}

.page-products .apple-key {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-products .prod-apple-media {
  margin: 0;
  aspect-ratio: 3 / 2;
}

.page-products .prod-apple-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 三步 ---------- */
.page-products .step-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  counter-reset: step;
}

.page-products .step {
  padding: clamp(20px, 3vw, 28px);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}

.page-products .step::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--flame));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease;
}

.page-products .step:hover::after,
.page-products .step:focus-within::after {
  transform: scaleX(1);
}

.page-products .step-num {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--flame);
}

.page-products .step .t-h3 {
  margin: 0;
  color: var(--white);
}

.page-products .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ash);
}

.page-products .step .btn {
  align-self: flex-start;
  margin-top: 6px;
}

/* ---------- 会员等级 ---------- */
.page-products .tier-section {
  background: linear-gradient(180deg, transparent, rgba(14, 31, 26, 0.75) 40%, transparent);
}

.page-products .tier-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-products .tier-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .tier {
  padding: clamp(20px, 3vw, 26px);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-products .tier-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-products .tier-badge {
  font-size: clamp(1.2rem, 2.6vw, 1.5rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-products .tier-flag {
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 3px 9px;
  color: var(--ink);
  background: var(--lime);
}

.page-products .tier .meter {
  height: 4px;
}

.page-products .res-fill-1 { width: 33%; }
.page-products .res-fill-2 { width: 66%; }
.page-products .res-fill-3 { width: 100%; }

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

.page-products .tier-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

.page-products .tier-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--lime);
}

.page-products .tier .btn {
  align-self: flex-start;
}

.page-products .prod-badge-media {
  margin: 0;
  aspect-ratio: 1 / 1;
  max-width: 420px;
}

.page-products .prod-badge-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 更新节奏 ---------- */
.page-products .update-inner {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 56px);
  border-left: 2px solid var(--lime);
}

.page-products .update-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.22;
}

.page-products .update-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .update-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(100deg, rgba(7, 11, 10, 0.94) 38%, rgba(7, 11, 10, 0.55));
}

.page-products .update-copy {
  position: relative;
  z-index: 2;
  max-width: 68ch;
}

.page-products .update-copy .t-h2 {
  margin: 14px 0 18px;
}

.page-products .update-copy .prose {
  margin: 0 0 24px;
}

.page-products .update-signals {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .update-signals li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog);
}

.page-products .signal-dot {
  width: 8px;
  height: 8px;
  background: var(--flame);
  transform: rotate(45deg);
  margin-top: 8px;
}

/* ---------- 常见疑问 ---------- */
.page-products .dlfaq-list {
  display: grid;
  gap: 12px;
}

.page-products .dlfaq-item {
  padding: 0;
  background: var(--panel);
  transition: outline-color 180ms ease;
  outline: 1px solid transparent;
  outline-offset: -1px;
}

.page-products .dlfaq-item[open] {
  outline-color: var(--line);
}

.page-products .dlfaq-item:hover {
  outline-color: var(--lime-dim);
}

.page-products .dlfaq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px clamp(18px, 2.6vw, 24px);
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-products .dlfaq-item summary::-webkit-details-marker {
  display: none;
}

.page-products .dlfaq-item summary::before {
  content: "+";
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--lime);
  flex: none;
}

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

.page-products .dlfaq-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-products .dlfaq-item p {
  margin: 0;
  padding: 0 clamp(18px, 2.6vw, 24px) 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ash);
  max-width: 74ch;
}

.page-products .dlfaq-item p a {
  color: var(--lime-dim);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .dlfaq-foot {
  margin-top: 26px;
  padding: clamp(20px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}

.page-products .dlfaq-foot p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
  max-width: 62ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .shelf-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .shelf-list > .shelf-card:nth-child(even) {
    margin-top: 30px;
  }

  .page-products .shelf-card--wide {
    grid-column: span 2;
  }

  .page-products .step-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .step:nth-child(2) {
    margin-top: 22px;
  }

  .page-products .dlfaq-foot {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero-grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-products .shelf {
    grid-template-columns: var(--prod-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .cat-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-products .cat-list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-products .cat-item {
    display: flex;
    width: 100%;
    border-color: transparent;
    border-left-color: var(--line);
    clip-path: none;
    padding: 9px 12px;
  }

  .page-products .apple-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-products .tier-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

  .page-products .tier-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-products .prod-badge-media {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .shelf-card,
  .page-products .cat-item,
  .page-products .step::after {
    transition: none;
  }

  .page-products .shelf-card:hover,
  .page-products .shelf-card:focus-within,
  .page-products .cat-item:hover,
  .page-products .cat-item:focus-visible {
    transform: none;
  }
}