.page-products {
  --dl-edge: 2px;
  --dl-panel-bg: var(--ink-800);
  background: var(--ink-900);
  color: var(--paper);
  padding-block: clamp(18px, 3vw, 34px) clamp(48px, 7vw, 96px);
}

.page-products .breadcrumb {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-products a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(22px, 3.4vw, 44px);
  border: var(--dl-edge) solid var(--line-blue);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(63, 224, 255, 0.14), transparent 60%),
    linear-gradient(160deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-products .dl-hero::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 9px;
  right: 9px;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--line-blue) 0 1px, transparent 1px 12px);
  pointer-events: none;
}

.page-products .dl-hero-copy {
  display: grid;
  gap: 14px;
  align-content: start;
  min-width: 0;
}

.page-products .dl-hero-kicker {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .dl-hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 62px);
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.page-products .dl-hero-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .dl-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-products .dl-hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 8px 0 0;
  padding: 0;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--line-blue);
}

.page-products .dl-stat {
  background: var(--ink-900);
  padding: 12px 14px;
}

.page-products .dl-stat-k,
.page-products .dl-stat-v {
  margin: 0;
}

.page-products .dl-stat-k {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .dl-stat-v {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products .dl-stat-v span {
  margin-left: 3px;
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}

.page-products .dl-hero-visual {
  position: relative;
  margin: 0;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
  min-width: 0;
}

.page-products .dl-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .dl-figcap {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-top: 1px solid var(--line-blue);
}

.page-products .dl-ver-badge {
  position: absolute;
  top: 8px;
  right: 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(42px, 10vw, 78px);
  line-height: 1;
  color: var(--gold);
  text-shadow: 0 0 26px rgba(245, 185, 66, 0.4);
  pointer-events: none;
}

/* ---------- 主体网格 ---------- */
.page-products .dl-body {
  align-items: start;
  margin-top: clamp(34px, 5vw, 64px);
}

.page-products .dl-main {
  display: grid;
  gap: clamp(40px, 6vw, 82px);
  min-width: 0;
}

.page-products .dl-index {
  display: grid;
  gap: 10px;
  align-content: start;
  margin-bottom: 28px;
  padding: 16px;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
}

.page-products .dl-index-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-products .dl-index-ver {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 48px;
  line-height: 1;
  color: var(--cyan);
}

.page-products .dl-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .dl-index-link {
  display: block;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-products .dl-index-link:hover,
.page-products .dl-index-link:focus-visible {
  background: rgba(63, 224, 255, 0.1);
  border-left-color: var(--gold);
  color: var(--cyan);
}

.page-products .dl-section {
  min-width: 0;
}

/* ---------- 三端卡片 ---------- */
.page-products .dl-terminals {
  display: grid;
  gap: var(--gap);
}

.page-products .dl-terminal {
  display: grid;
  grid-template-rows: auto 1fr;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-products .dl-terminal:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-hard);
}

.page-products .dl-terminal .panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .dl-terminal-list {
  list-style: none;
  margin: 14px 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .dl-terminal-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .dl-terminal-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-products .dl-terminal-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--gold);
}

/* ---------- 期号速查 ---------- */
.page-products .dl-lookup {
  display: grid;
  gap: var(--gap);
}

.page-products .dl-lookup-copy p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper);
}

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

.page-products .dl-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-products .dl-step-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--cyan);
}

.page-products .dl-step h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-products .dl-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .dl-lookup-visual {
  margin: 0;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
  min-width: 0;
}

.page-products .dl-lookup-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .dl-section .table-wrap {
  margin-top: clamp(24px, 3vw, 36px);
}

/* ---------- 统计视图 ---------- */
.page-products .dl-chart-grid {
  display: grid;
  gap: var(--gap);
}

.page-products .dl-chart-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-products .dl-chart-card:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-products .dl-chart-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-products .dl-chart-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .dl-svg-wrap {
  padding: 8px;
  border: 1px solid var(--line-blue);
  background: var(--ink-900);
}

.page-products .dl-spark {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .dl-spark-grid line {
  stroke: var(--line-blue);
  stroke-width: 1;
  stroke-dasharray: 4 6;
}

.page-products .dl-spark-line {
  fill: none;
  stroke-width: 2.5;
}

.page-products .dl-spark-line--a {
  stroke: var(--cyan);
}

.page-products .dl-spark-line--b {
  stroke: var(--gold);
}

.page-products .dl-spark-line--c {
  stroke: var(--mint);
}

.page-products .dl-heat {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .dl-heat-cell {
  flex: 1 1 0;
  min-width: 50px;
  height: 48px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  border: 1px solid var(--line-blue);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .dl-heat-cell:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-products .lv-1 {
  background: rgba(75, 227, 180, 0.16);
  color: var(--mint);
}

.page-products .lv-2 {
  background: rgba(75, 227, 180, 0.42);
  color: var(--ink-900);
}

.page-products .lv-3 {
  background: rgba(245, 185, 66, 0.5);
  color: var(--ink-900);
}

.page-products .lv-4 {
  background: rgba(255, 76, 99, 0.68);
  color: var(--paper);
}

.page-products .lv-5 {
  background: rgba(255, 76, 99, 0.95);
  color: var(--paper);
}

.page-products .dl-heat-scale {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .dl-chart-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-products .dl-chart-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .dl-chart-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--cyan);
}

.page-products .dl-wide-fig {
  margin: clamp(24px, 3vw, 36px) 0 0;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
}

.page-products .dl-wide-fig img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 版本条带 ---------- */
.page-products .dl-lead-p {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .dl-version-strip {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 18px 2px 12px;
  border-top: 1px solid var(--line-blue);
  scroll-snap-type: x proximity;
}

.page-products .dl-version {
  flex: 0 0 clamp(212px, 62vw, 252px);
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
  scroll-snap-align: start;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .dl-version:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-products .dl-version[open] {
  border-color: var(--cyan);
}

.page-products .dl-version-sum {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
}

.page-products .dl-version-sum::-webkit-details-marker {
  display: none;
}

.page-products .dl-vnum {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 30px;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products .dl-vdate {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .dl-version-body {
  padding: 0 14px 14px;
  border-top: 1px solid var(--line-blue);
}

.page-products .dl-version-body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 同步与导出 ---------- */
.page-products .dl-sync {
  display: grid;
  gap: var(--gap);
}

.page-products .dl-sync-copy p {
  margin: 0 0 20px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .dl-exports {
  display: grid;
  gap: 12px;
}

.page-products .dl-export {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 16px;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
}

.page-products .dl-export h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .dl-export p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .dl-export-icon {
  display: block;
  width: 30px;
  height: 38px;
  border: 2px solid var(--gold);
  color: var(--gold);
  position: relative;
}

.page-products .dl-export-icon::before {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 10px;
  height: 2px;
  background: currentColor;
  box-shadow: 0 7px 0 currentColor, 0 14px 0 currentColor;
}

.page-products .dl-export-icon--csv {
  border-color: var(--mint);
  color: var(--mint);
}

.page-products .dl-export-diff {
  margin-top: 16px;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-900);
}

.page-products .dl-export-diff > summary {
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-products .dl-export-diff > summary::-webkit-details-marker {
  display: none;
}

.page-products .dl-export-diff > summary::after {
  content: "＋";
  float: right;
}

.page-products .dl-export-diff[open] > summary::after {
  content: "－";
}

.page-products .dl-export-diff .table-wrap {
  padding: 0 14px 14px;
}

.page-products .dl-sync-visual {
  margin: 0;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--ink-800);
  min-width: 0;
}

.page-products .dl-sync-visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 安装与适配 ---------- */
.page-products .dl-install-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: var(--dl-edge) solid var(--line-blue);
  background: var(--line-blue);
  counter-reset: dl-step;
}

.page-products .dl-install-steps > li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink-800);
}

.page-products .dl-install-steps h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-products .dl-install-steps h3::before {
  counter-increment: dl-step;
  content: counter(dl-step, decimal-leading-zero) "  ";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold);
}

.page-products .dl-install-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .dl-install-help {
  margin-top: 20px;
  padding: 4px 0 4px 16px;
  border-left: 3px solid var(--gold);
  display: grid;
  gap: 10px;
}

.page-products .dl-install-help p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .dl-install-help strong {
  color: var(--paper);
}

.page-products .dl-install-help a {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .dl-exports {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 760px) {
  .page-products .dl-terminals {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  }
}

@media (min-width: 820px) {
  .page-products .dl-chart-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  .page-products .dl-install-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-products .dl-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-products .dl-lookup {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    align-items: start;
  }

  .page-products .dl-sync {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products .dl-index {
    position: sticky;
    top: 92px;
    margin-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-terminal,
  .page-products .dl-chart-card,
  .page-products .dl-version,
  .page-products .dl-heat-cell,
  .page-products .dl-index-link {
    transition: none;
  }

  .page-products .dl-terminal:hover,
  .page-products .dl-chart-card:hover,
  .page-products .dl-version:hover,
  .page-products .dl-heat-cell:hover {
    transform: none;
  }
}