.page-products {
  --dlPad: clamp(1.25rem, 4vw, 2.75rem);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-products .dl-masthead {
  padding-block: clamp(1.75rem, 5vw, 3.25rem) clamp(2rem, 5vw, 3.5rem);
}

.page-products .dl-masthead-grid {
  display: grid;
  gap: 1.75rem;
  align-items: start;
}

@media (min-width: 900px) {
  .page-products .dl-masthead-grid {
    grid-template-columns: minmax(0, 7fr) minmax(240px, 4fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }
}

.page-products .crumbs {
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--warm);
  margin-bottom: 1.25rem;
}

.page-products .crumbs a {
  color: var(--warm);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-products .crumbs a:hover {
  color: var(--gold-bright);
  border-bottom-color: var(--line-gold);
}

.page-products .crumb-sep {
  margin-inline: 0.55em;
  color: var(--gold-deep);
}

.page-products .dl-masthead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.012em;
  margin: 0.6rem 0 0;
  color: var(--paper);
  max-width: 16ch;
}

.page-products .dl-masthead h1::after {
  content: "";
  display: block;
  width: clamp(3.5rem, 14vw, 7rem);
  height: 3px;
  margin-top: 1.25rem;
  background: linear-gradient(90deg, var(--gold), var(--gold-deep) 70%, transparent);
}

.page-products .dl-masthead .lead {
  margin-top: 1.5rem;
  max-width: 52ch;
  color: var(--paper-2);
}

.page-products .dl-masthead .btn-row {
  margin-top: 1.75rem;
}

/* 版本状态面板 */
.page-products .dl-status {
  border: 1px solid var(--line-gold);
  border-left: 3px solid var(--gold);
  background: linear-gradient(155deg, var(--ink-2), var(--ink) 78%);
  padding: 1.35rem 1.35rem 1.5rem;
}

.page-products .dl-status-head {
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  color: var(--gold);
  margin: 0 0 0.9rem;
}

.page-products .dl-status-big {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 9vw, 3.5rem);
  line-height: 1;
  color: var(--gold-bright);
  margin: 0;
  letter-spacing: 0.02em;
}

.page-products .dl-status-sub {
  margin: 0.6rem 0 1.25rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .dl-status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-paper);
}

.page-products .dl-status-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line-paper);
  font-size: 0.875rem;
  color: var(--paper-2);
}

.page-products .dl-status-list .mono {
  color: var(--paper);
  letter-spacing: 0.06em;
}

/* 首屏主图 */
.page-products .dl-hero-media {
  margin: clamp(1.75rem, 5vw, 2.75rem) 0 0;
  background: var(--ink-2);
}

.page-products .dl-hero-media img,
.page-products .dl-chg-media img,
.page-products .dl-table-media img,
.page-products .install-media img,
.page-products .dl-path-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通用章节 ---------- */
.page-products .dl-section {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
}

.page-products .dl-section + .dl-section {
  border-top: 1px solid var(--line-gold-soft);
}

.page-products .dl-section-head .section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.2vw, 2.4rem);
  line-height: 1.2;
  margin: 0.4rem 0 0;
  color: var(--paper);
}

.page-products .dl-intro {
  margin-top: 1.25rem;
  max-width: 62ch;
  color: var(--paper-2);
}

.page-products .dl-footnote {
  margin-top: 1.5rem;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--warm);
  border-left: 2px solid var(--line-gold);
  padding-left: 1rem;
}

.page-products .dl-footnote a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-products .dl-footnote a:hover {
  border-bottom-color: var(--gold-bright);
}

/* ---------- 版本卡片 ---------- */
.page-products .ver-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 720px) {
  .page-products .ver-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.15rem;
  }
}

.page-products .ver-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  background: var(--ink-2);
  border: 1px solid var(--line-paper);
  padding: 1.35rem 1.25rem 1.25rem;
  transition: border-color 180ms ease, transform 180ms ease;
}

.page-products .ver-card:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.page-products .ver-card--current {
  border-color: var(--line-gold);
  background: linear-gradient(180deg, rgba(166, 124, 46, 0.14), var(--ink-2) 58%);
}

.page-products .ver-card--current::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold) 60%, transparent);
}

.page-products .ver-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.page-products .ver-badge {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
  border: 1px solid var(--line-gold);
  background: var(--rock);
  padding: 0.15rem 0.55rem 0.2rem;
}

.page-products .ver-id {
  font-family: var(--font-mono);
  font-size: clamp(1.65rem, 5.5vw, 2.1rem);
  line-height: 1.1;
  color: var(--paper);
  margin: 0;
  letter-spacing: 0.02em;
}

.page-products .ver-desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--warm);
}

.page-products .ver-facts {
  margin: 0;
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--line-paper);
  display: grid;
  gap: 0.55rem;
}

.page-products .ver-facts > div {
  display: grid;
  gap: 0.15rem;
}

.page-products .ver-facts dt {
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .ver-facts dd {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--paper-2);
}

.page-products .ver-action {
  margin-top: auto;
  padding-top: 0.75rem;
}

.page-products .ver-action .btn {
  width: 100%;
  text-align: center;
}

/* ---------- V4 变更 ---------- */
.page-products .chg-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 700px) {
  .page-products .chg-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .chg-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.15rem;
  }
}

.page-products .chg-card {
  background: var(--ink-2);
  border: 1px solid var(--line-paper);
  border-top: 2px solid var(--gold);
  padding: 1.25rem 1.15rem 1.35rem;
}

.page-products .chg-num {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-products .chg-card h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.4;
  margin: 0.65rem 0 0.6rem;
  color: var(--paper);
}

.page-products .chg-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--warm);
}

.page-products .chg-card .mono {
  color: var(--gold-bright);
  letter-spacing: 0.05em;
}

.page-products .dl-chg-media {
  margin: 2rem 0 0;
  background: var(--ink-2);
}

/* ---------- 对照表 ---------- */
.page-products .dl-table-media {
  margin: 1.75rem 0 0;
  background: var(--ink-2);
}

.page-products .dl-table-caption {
  caption-side: top;
  text-align: left;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--warm);
  padding: 0 0 0.75rem;
}

.page-products .table-wrap {
  margin-top: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--line-gold-soft);
  -webkit-overflow-scrolling: touch;
}

.page-products .data-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.page-products .data-table th {
  text-align: left;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  background: var(--rock);
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line-gold);
  white-space: nowrap;
}

.page-products .data-table td {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--line-paper);
  color: var(--paper-2);
  line-height: 1.7;
  vertical-align: top;
}

.page-products .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .data-table tbody tr:hover td {
  background: rgba(166, 124, 46, 0.09);
  color: var(--paper);
}

.page-products .data-table .mono {
  color: var(--gold-bright);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* ---------- 安装步骤 ---------- */
.page-products .install-grid {
  margin-top: 2rem;
}

@media (min-width: 900px) {
  .page-products .install-grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(1.5rem, 4vw, 2.75rem);
    align-items: start;
  }
}

.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-paper);
  border: 1px solid var(--line-paper);
}

.page-products .step-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  background: var(--ink-2);
  padding: 1.1rem 1.15rem;
}

.page-products .step-num {
  display: grid;
  place-items: center;
  width: 1.85rem;
  height: 1.85rem;
  background: var(--gold);
  color: var(--ink);
  font-size: 0.875rem;
  line-height: 1;
}

.page-products .step-body h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  margin: 0.1rem 0 0.45rem;
  color: var(--paper);
}

.page-products .step-body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--warm);
}

.page-products .step-body .mono {
  color: var(--gold-bright);
  letter-spacing: 0.05em;
}

.page-products .install-media {
  margin: 1.5rem 0 0;
  background: var(--ink-2);
}

@media (min-width: 900px) {
  .page-products .install-media {
    margin-top: 0;
  }
}

.page-products .adapt-block {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-gold-soft);
}

.page-products .adapt-title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.0625rem;
  margin: 0;
  color: var(--paper);
}

.page-products .adapt-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.95rem;
  max-width: 74ch;
}

.page-products .adapt-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--paper-2);
}

.page-products .adapt-list li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.68em;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--cinnabar);
  transform: rotate(45deg);
}

.page-products .adapt-list strong {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 入口路径 ---------- */
.page-products .path-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 2rem;
}

@media (min-width: 560px) {
  .page-products .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-products .path-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.75rem;
  }
}

.page-products .path-card {
  position: relative;
  background: var(--ink-2);
  border: 1px solid var(--line-paper);
  border-bottom: 2px solid var(--gold-deep);
  padding: 1.15rem 1rem 1.25rem;
  transition: border-bottom-color 180ms ease, background 180ms ease;
}

.page-products .path-card:hover {
  background: var(--rock);
  border-bottom-color: var(--gold-bright);
}

.page-products .path-num {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin-bottom: 0.6rem;
}

.page-products .path-card h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 0.5rem;
  color: var(--paper);
}

.page-products .path-card p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--warm);
}

.page-products .dl-path-media {
  margin: 2rem 0 0;
  background: var(--ink-2);
}

/* ---------- 收尾 ---------- */
.page-products .dl-closing {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding: 1.5rem clamp(1.15rem, 3vw, 2rem);
  border: 1px solid var(--line-gold);
  background: linear-gradient(140deg, rgba(166, 124, 46, 0.14), var(--ink-2) 70%);
}

.page-products .dl-closing p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--paper-2);
}

.page-products .dl-closing a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-products .dl-closing a:hover {
  border-bottom-color: var(--gold-bright);
}

.page-products .dl-closing .btn-row {
  margin-top: 1.35rem;
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ver-card,
  .page-products .path-card {
    transition: none;
  }
  .page-products .ver-card:hover,
  .page-products .path-card:hover {
    transform: none;
  }
}