.page-products {
  --p-hair: rgba(15, 46, 34, 0.14);
  --p-gold-hair: rgba(201, 162, 39, 0.34);
  --p-shadow: 0 1px 0 rgba(26, 26, 26, 0.05), 0 20px 42px -30px rgba(15, 46, 34, 0.55);
  background: var(--paper);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
  overflow-x: hidden;
}

.page-products .reading {
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.78;
  max-width: 68ch;
  margin: 0 0 1rem;
}

.page-products .products-hero,
.page-products .products-entry,
.page-products .products-overview,
.page-products .products-adapt,
.page-products .products-band,
.page-products .products-steps,
.page-products .products-legacy,
.page-products .products-log,
.page-products .products-trouble,
.page-products .products-next {
  margin-top: var(--stack);
}

/* ---------- 面包屑 ---------- */
.page-products .products-crumb {
  padding-top: clamp(1rem, 3vw, 1.8rem);
}

/* ---------- 首屏 ---------- */
.page-products .products-hero h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 3.25rem);
  line-height: 1.18;
  letter-spacing: -0.012em;
  color: var(--ink-green);
  max-width: 760px;
  margin: 0.5rem 0 0;
}

.page-products .products-lede {
  margin-top: clamp(0.9rem, 2.4vw, 1.4rem);
  max-width: 62ch;
}

.page-products .products-facts {
  list-style: none;
  margin: clamp(1.8rem, 5vw, 3rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--p-hair);
  border-top: 2px solid var(--ink-green);
  border-bottom: 1px solid var(--p-hair);
}

.page-products .products-facts li {
  background: var(--paper);
  padding: 1rem 1.1rem 1.1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-products .fact-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.7rem, 4.6vw, 2.5rem);
  line-height: 1;
  color: var(--ink-green);
  letter-spacing: -0.02em;
}

.page-products .fact-label {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--grey);
}

/* ---------- 双栏入口 ---------- */
.page-products .dual-entry {
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.6rem);
  margin-top: clamp(1.4rem, 3.6vw, 2.2rem);
}

.page-products .entry-card {
  position: relative;
  padding: clamp(1.4rem, 3.4vw, 2.1rem);
  border-top: 3px solid var(--ink-green);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-products .entry-card--new {
  border-top-color: var(--coral);
  background: var(--paper-white);
}

.page-products .entry-card--old {
  border-top-color: var(--gold);
  background: var(--paper);
}

.page-products .entry-card h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.6vw, 1.5rem);
  line-height: 1.35;
  color: var(--ink-green);
  margin: 0;
}

.page-products .entry-copy {
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ink);
  margin: 0;
}

.page-products .entry-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  border-top: 1px dashed var(--p-hair);
  padding-top: 0.85rem;
}

.page-products .entry-points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--ink);
}

.page-products .entry-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 2px;
  background: var(--gold);
}

.page-products .entry-card .btn {
  align-self: flex-start;
  margin-top: 0.3rem;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.page-products .entry-card--new .btn:hover,
.page-products .entry-card--new .btn:focus-visible {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--paper-white);
  transform: translateY(-2px);
}

/* ---------- 焕新版概览 ---------- */
.page-products .overview-grid {
  display: grid;
  gap: clamp(1.4rem, 3.4vw, 2.4rem);
  margin-top: clamp(1.4rem, 3.6vw, 2rem);
}

.page-products .overview-figure {
  margin: 0;
}

.page-products .overview-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--p-hair);
  border-top: 1px solid var(--p-hair);
  border-bottom: 1px solid var(--p-hair);
}

.page-products .overview-list li {
  background: var(--paper);
  padding: 1.1rem 0 1.15rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.9rem;
  row-gap: 0.3rem;
}

.page-products .ov-num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--gold);
  padding-top: 0.25rem;
  letter-spacing: 0.06em;
}

.page-products .overview-list h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--ink-green);
  margin: 0;
}

.page-products .overview-list p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--grey);
}

/* ---------- 适配清单 ---------- */
.page-products .adapt-note {
  margin-top: clamp(1rem, 2.6vw, 1.4rem);
  color: var(--grey);
  font-size: 0.95rem;
}

.page-products .adapt-scroll {
  margin-top: clamp(1rem, 2.6vw, 1.5rem);
  overflow-x: auto;
  border: 1px solid var(--p-hair);
  border-top: 2px solid var(--ink-green);
  background: var(--paper-white);
  -webkit-overflow-scrolling: touch;
}

.page-products .adapt-scroll:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
}

.page-products .adapt-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .adapt-caption {
  text-align: left;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--grey);
  border-bottom: 1px dashed var(--p-hair);
}

.page-products .adapt-table thead th {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-align: left;
  color: var(--ink-green);
  background: rgba(28, 74, 54, 0.06);
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--p-hair);
  white-space: nowrap;
}

.page-products .adapt-table tbody th {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink-green);
  text-align: left;
  padding: 0.72rem 1rem;
  white-space: nowrap;
}

.page-products .adapt-table tbody td {
  padding: 0.72rem 1rem;
  color: var(--ink);
  line-height: 1.6;
  vertical-align: middle;
}

.page-products .adapt-table tbody tr:nth-child(even) {
  background: rgba(201, 162, 39, 0.05);
}

.page-products .adapt-table tbody tr {
  border-bottom: 1px solid var(--p-hair);
  transition: background-color 160ms ease, box-shadow 160ms ease;
}

.page-products .adapt-table tbody tr:hover,
.page-products .adapt-table tbody tr:focus-within {
  background: rgba(232, 115, 74, 0.09);
  box-shadow: inset 3px 0 0 var(--coral);
}

.page-products .state {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.16rem 0.5rem;
  border: 1px solid currentColor;
}

.page-products .state--ok {
  color: var(--ok);
}

.page-products .adapt-foot {
  margin: 0.9rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 中部通栏 ---------- */
.page-products .products-band {
  margin-left: 0;
  margin-right: 0;
  background: var(--ink-green);
  border-top: 1px solid var(--rule-gold);
  border-bottom: 1px solid var(--rule-gold);
}

.page-products .band-inner {
  display: grid;
  gap: clamp(1rem, 3vw, 1.8rem);
  padding-top: clamp(1.4rem, 4vw, 2.4rem);
  padding-bottom: clamp(1.4rem, 4vw, 2.4rem);
  align-items: center;
}

.page-products .band-art {
  display: block;
  width: 100%;
  height: auto;
  max-width: 640px;
  border: 1px solid var(--rule-gold);
  object-fit: cover;
  aspect-ratio: 9 / 4;
}

.page-products .band-copy {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  line-height: 1.6;
  color: var(--gold-soft);
  margin: 0;
  max-width: 34ch;
}

/* ---------- 安装步骤 ---------- */
.page-products .steps-grid {
  display: grid;
  gap: clamp(1.3rem, 3.4vw, 2.2rem);
  margin-top: clamp(1.4rem, 3.6vw, 2rem);
}

.page-products .steps-figure {
  margin: 0;
}

.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(0.9rem, 2.4vw, 1.2rem);
}

.page-products .step-item {
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border-left: 3px solid var(--gold);
  display: grid;
  gap: 0.5rem;
}

.page-products .step-num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-products .step-item h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.4vw, 1.22rem);
  color: var(--ink-green);
  margin: 0;
}

.page-products .step-item > p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .step-item details {
  margin-top: 0.2rem;
  border-top: 1px dashed var(--p-hair);
  padding-top: 0.6rem;
}

.page-products .step-item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--coral);
  padding: 0.15rem 0;
  transition: color 160ms ease;
}

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

.page-products .step-item summary::before {
  content: "＋ ";
}

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

.page-products .step-item summary:hover,
.page-products .step-item summary:focus-visible {
  color: var(--ink-green);
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-products .step-item details p {
  margin: 0.5rem 0 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--grey);
}

/* ---------- 旧版延续 ---------- */
.page-products .legacy-grid {
  display: grid;
  gap: clamp(1.3rem, 3.4vw, 2.2rem);
  margin-top: clamp(1.4rem, 3.6vw, 2rem);
}

.page-products .legacy-figure {
  margin: 0;
}

.page-products .legacy-points {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-products .legacy-points li {
  position: relative;
  padding-left: 1.3rem;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-products .legacy-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 12px;
  height: 2px;
  background: var(--gold);
}

.page-products .legacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

/* ---------- 更新日志 ---------- */
.page-products .log-grid {
  display: grid;
  gap: clamp(1.3rem, 3.4vw, 2.2rem);
  margin-top: clamp(1.4rem, 3.6vw, 2rem);
}

.page-products .log-figure {
  margin: 0;
}

.page-products .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .log-item {
  position: relative;
  padding: 0 0 1.5rem 1.5rem;
  border-left: 1px solid var(--p-gold-hair);
}

.page-products .log-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-products .log-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.45rem;
  width: 9px;
  height: 9px;
  background: var(--gold);
  border-radius: 50%;
}

.page-products .log-item:last-child::before {
  background: var(--gold-soft);
}

.page-products .log-ver {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1;
  color: var(--ink-green);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 0.15rem;
  letter-spacing: -0.01em;
}

.page-products .log-item h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1rem;
  color: var(--ink-green);
  margin: 0.6rem 0 0.3rem;
}

.page-products .log-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--grey);
}

/* ---------- 排查 ---------- */
.page-products .trouble-grid {
  display: grid;
  gap: clamp(0.9rem, 2.4vw, 1.2rem);
  margin-top: clamp(1.4rem, 3.6vw, 2rem);
}

.page-products .trouble-card {
  padding: clamp(1.1rem, 3vw, 1.5rem);
  display: grid;
  gap: 0.55rem;
  align-content: start;
}

.page-products .trouble-card h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--ink-green);
  margin: 0;
}

.page-products .trouble-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.74;
  color: var(--grey);
}

.page-products .trouble-foot {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--ink);
}

.page-products .trouble-foot a {
  color: var(--ink-green);
  border-bottom: 1px solid var(--gold);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-products .trouble-foot a:hover,
.page-products .trouble-foot a:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 结尾引导 ---------- */
.page-products .products-next-inner {
  padding: clamp(1.6rem, 4.2vw, 2.8rem);
  display: grid;
  gap: 0.9rem;
}

.page-products .products-next-inner .section-title {
  color: var(--paper-white);
  margin: 0;
}

.page-products .products-next-inner p {
  margin: 0;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: rgba(244, 239, 228, 0.82);
}

.page-products .next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.5rem;
}

.page-products .products-next .to-top {
  margin-top: 1.4rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .products-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .products-facts li {
    padding: 1.15rem 1.2rem 1.25rem 1.2rem;
  }

  .page-products .products-facts li:first-child {
    padding-left: 0;
  }

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

  .page-products .band-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
  }
}

@media (min-width: 900px) {
  .page-products .dual-entry {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .overview-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .steps-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-products .steps-figure {
    position: sticky;
    top: 2rem;
  }

  .page-products .legacy-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-products .log-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-products .log-figure {
    position: sticky;
    top: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .entry-card .btn,
  .page-products .adapt-table tbody tr {
    transition: none;
  }

  .page-products .entry-card--new .btn:hover,
  .page-products .entry-card--new .btn:focus-visible {
    transform: none;
  }
}