.page-products {
  --pp-amber-ink: #A3620F;
  --pp-rule: rgba(31, 61, 87, .55);
  background: var(--ink-900);
  color: var(--text-on-dark);
}

.page-products .breadcrumb {
  margin-bottom: 26px;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 85% -10%, rgba(53, 224, 214, .12), transparent 62%),
    var(--ink-900);
}

.page-products .dl-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(168, 182, 196, .12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(168, 182, 196, .08) 1px, transparent 1px);
  background-size: 120px 120px;
  -webkit-mask-image: radial-gradient(120% 85% at 75% 0%, #000 15%, transparent 80%);
  mask-image: radial-gradient(120% 85% at 75% 0%, #000 15%, transparent 80%);
  pointer-events: none;
}

.page-products .dl-hero .container {
  position: relative;
  z-index: 1;
}

.page-products .dl-hero__grid {
  display: grid;
  gap: 34px;
}

.page-products .dl-hero__title {
  margin: 14px 0 0;
  font-weight: 900;
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-products .dl-hero__mark {
  color: var(--amber-400);
}

.page-products .dl-hero__main .lede {
  margin-top: 20px;
  color: var(--text-on-dark);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .dl-hero__fact {
  border: 1px solid var(--ink-500);
  border-left: 3px solid var(--amber-400);
  border-radius: 14px 4px 14px 4px;
  padding: 20px 22px;
  background: linear-gradient(160deg, rgba(20, 41, 61, .92), rgba(11, 27, 43, .55));
}

.page-products .dl-hero__fact-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: .1em;
  color: var(--amber-400);
}

.page-products .dl-fact {
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}

.page-products .dl-fact__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--ink-500);
}

.page-products .dl-fact__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .dl-fact__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist-300);
}

.page-products .dl-fact__row dd {
  margin: 0;
  font-size: var(--step-sm);
  color: var(--white);
}

/* ---------- 区块标题 ---------- */
.page-products .dl-head {
  margin-bottom: 26px;
}

.page-products .dl-head .serif-title {
  margin: 10px 0 0;
  color: var(--white);
}

.page-products .dl-head .eyebrow {
  margin: 0;
}

/* ---------- 两端分段 ---------- */
.page-products .dl-clients {
  background: var(--ink-800);
  border-top: 1px solid var(--ink-500);
  border-bottom: 1px solid var(--ink-500);
}

.page-products .dl-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--ink-500);
  margin-bottom: 30px;
}

.page-products .dl-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  font-size: var(--step-md);
  font-weight: 500;
  color: var(--mist-300);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .dl-tab .mono {
  font-size: 11px;
  color: var(--mist-300);
}

.page-products .dl-tab:hover {
  color: var(--white);
}

.page-products .dl-tab:hover .mono {
  color: var(--cyan-400);
}

.page-products .dl-tab.is-current {
  color: var(--white);
  border-bottom-color: var(--amber-400);
}

.page-products .dl-tab.is-current .mono {
  color: var(--amber-400);
}

.page-products .dl-tab:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: 3px;
}

.page-products .dl-panel {
  display: grid;
  gap: 26px;
  padding-top: 8px;
}

.page-products .dl-panel + .dl-panel {
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--ink-500);
}

.page-products .dl-panel__title {
  margin: 0 0 14px;
  font-size: var(--step-xl);
  line-height: 1.35;
  color: var(--white);
}

.page-products .dl-panel__body p {
  margin: 0 0 14px;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-products .dl-points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .dl-points li {
  position: relative;
  padding-left: 24px;
  font-size: var(--step-sm);
  line-height: 1.7;
  color: var(--text-on-dark);
}

.page-products .dl-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 11px;
  height: 2px;
  background: var(--cyan-400);
}

.page-products .dl-note {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--amber-400);
}

.page-products .web-card {
  border: 1px solid var(--ink-500);
  border-radius: 14px 4px 14px 4px;
  padding: 20px 22px;
  background: var(--ink-700);
}

.page-products .web-card__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-products .media-frame {
  border-radius: 14px 4px 14px 4px;
  border: 1px solid var(--ink-500);
  overflow: hidden;
  background: var(--ink-800);
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .media-frame__caption {
  display: block;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist-300);
  border-top: 1px solid var(--ink-500);
}

/* ---------- 规格与校验 ---------- */
.page-products .dl-specs__grid {
  display: grid;
  gap: 34px;
}

.page-products .dl-specs__col .serif-title {
  margin: 10px 0 0;
  color: var(--text-on-paper);
}

.page-products .dl-specs__lead {
  margin: 16px 0 26px;
  max-width: 34em;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--muted-on-paper);
}

.page-products .spec-list {
  margin: 0;
  border-top: 1px solid var(--paper-300);
}

.page-products .spec-row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--paper-300);
}

.page-products .spec-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--pp-amber-ink);
}

.page-products .spec-row dd {
  margin: 0;
  font-size: var(--step-sm);
  line-height: 1.75;
  color: var(--text-on-paper);
}

.page-products .dl-specs__aside {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-products .checksum {
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  border-radius: 14px 4px 14px 4px;
  padding: 20px 22px;
  color: var(--text-on-dark);
}

.page-products .checksum__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--amber-400);
}

.page-products .checksum__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: .04em;
  color: var(--cyan-200);
  word-break: break-all;
}

.page-products .checksum__hint {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-products .dl-specs__figure .media-frame__caption {
  color: var(--muted-on-paper);
  border-top-color: var(--paper-300);
}

/* ---------- 三步安装 ---------- */
.page-products .dl-install {
  background: var(--ink-900);
}

.page-products .dl-install__figure {
  margin: 0 0 30px;
}

.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
  counter-reset: step;
}

.page-products .step {
  counter-increment: step;
  position: relative;
  padding: 22px 20px;
  background: var(--ink-700);
  border: 1px solid var(--ink-500);
  border-radius: 14px 4px 14px 4px;
}

.page-products .step__node {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  background: var(--amber-400);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
}

.page-products .step__node::before {
  content: "0" counter(step);
}

.page-products .step__title {
  margin: 14px 0 10px;
  font-size: var(--step-lg);
  color: var(--white);
}

.page-products .step p {
  margin: 0;
  font-size: var(--step-sm);
  line-height: 1.75;
  color: var(--text-on-dark);
}

/* ---------- 会员权益栏目 ---------- */
.page-products .dl-services__grid {
  display: grid;
  gap: 34px;
}

.page-products .dl-services__intro .serif-title {
  margin: 10px 0 0;
  color: var(--text-on-paper);
}

.page-products .dl-services__intro p {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--text-on-paper);
}

.page-products .dl-services__figure {
  margin: 26px 0 0;
  border-color: var(--paper-300);
  background: var(--white);
}

.page-products .dl-services__figure .media-frame__caption {
  color: var(--muted-on-paper);
  border-top-color: var(--paper-300);
}

.page-products .benefit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-products .benefit {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, .55);
  border-left: 2px solid var(--amber-400);
  border-radius: 0 10px 10px 0;
}

.page-products .benefit__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--pp-amber-ink);
  padding-top: 3px;
}

.page-products .benefit__title {
  margin: 0 0 6px;
  font-size: var(--step-md);
  color: var(--text-on-paper);
}

.page-products .benefit p {
  margin: 0;
  font-size: var(--step-sm);
  line-height: 1.7;
  color: var(--muted-on-paper);
}

/* ---------- 差异对照 ---------- */
.page-products .dl-diff {
  background:
    linear-gradient(180deg, var(--ink-900), var(--ink-800));
}

.page-products .dl-diff__lead {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-products .diff-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 20px;
}

.page-products .diff-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--ink-500);
  border-radius: 14px 4px 14px 4px;
  background: var(--ink-900);
}

.page-products .diff-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: var(--step-sm);
}

.page-products .diff-caption {
  caption-side: top;
  padding: 14px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist-300);
  border-bottom: 1px solid var(--ink-500);
}

.page-products .diff-table th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--mist-300);
  border-bottom: 1px solid var(--ink-500);
  background: var(--ink-800);
}

.page-products .diff-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--ink-700);
  line-height: 1.6;
  color: var(--text-on-dark);
  vertical-align: top;
}

.page-products .diff-table th:first-child,
.page-products .diff-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--ink-900);
}

.page-products .diff-id {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--amber-400);
  white-space: nowrap;
}

.page-products .diff-new {
  color: var(--cyan-200);
}

.page-products .diff-table .diff-group td {
  background: var(--ink-800);
  border-top: 2px solid var(--amber-400);
  border-bottom: 1px solid var(--ink-500);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber-400);
  padding: 10px 16px;
}

.page-products .diff-table .diff-group td:first-child {
  background: var(--ink-800);
}

.page-products .diff-table tbody tr:not(.diff-group):hover td {
  background: rgba(53, 224, 214, .07);
}

.page-products .diff-table tbody tr:not(.diff-group):hover td:first-child {
  background: #0E2434;
}

.page-products .dl-diff__foot {
  margin: 22px 0 0;
  font-size: var(--step-sm);
  color: var(--mist-300);
}

.page-products .dl-diff__foot a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 资料库 ---------- */
.page-products .dl-library__grid {
  display: grid;
  gap: 30px;
}

.page-products .dl-library__media .media-frame {
  border-color: var(--paper-300);
  background: var(--white);
}

.page-products .dl-library__media .media-frame__caption {
  color: var(--muted-on-paper);
  border-top-color: var(--paper-300);
}

.page-products .dl-library__body .serif-title {
  margin: 10px 0 0;
  color: var(--text-on-paper);
}

.page-products .dl-library__body > p {
  margin: 16px 0 0;
  max-width: 36em;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--text-on-paper);
}

.page-products .lib-dims {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-products .lib-dim {
  padding: 16px;
  background: rgba(255, 255, 255, .6);
  border: 1px solid var(--paper-300);
  border-radius: 12px 4px 12px 4px;
}

.page-products .lib-dim__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--pp-amber-ink);
}

.page-products .lib-dim p {
  margin: 0;
  font-size: var(--step-sm);
  line-height: 1.7;
  color: var(--muted-on-paper);
}

.page-products .lib-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--paper-300);
}

.page-products .lib-stat {
  display: grid;
  gap: 4px;
}

.page-products .lib-stat__num {
  font-family: var(--font-mono);
  font-size: var(--step-2xl);
  line-height: 1;
  color: var(--text-on-paper);
}

.page-products .lib-stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted-on-paper);
}

/* ---------- 升级预约 ---------- */
.page-products .dl-upgrade {
  background:
    radial-gradient(110% 120% at 0% 0%, rgba(242, 166, 59, .16), transparent 60%),
    var(--ink-700);
  border-top: 1px solid var(--ink-500);
}

.page-products .dl-upgrade__inner {
  display: grid;
  gap: 26px;
}

.page-products .dl-upgrade__body .serif-title {
  margin: 10px 0 0;
  color: var(--white);
}

.page-products .dl-upgrade__body p {
  margin: 16px 0 0;
  max-width: 38em;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-products .dl-upgrade__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .lib-dims {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .spec-row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-products .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 42px;
    right: -22px;
    width: 22px;
    height: 2px;
    background: var(--ink-500);
  }

  .page-products .dl-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: end;
  }

  .page-products .dl-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .dl-panel--alt {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .dl-specs__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-products .dl-services__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .dl-library__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .dl-upgrade__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 40px;
  }

  .page-products .dl-upgrade__links {
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-products .spec-row {
    grid-template-columns: 180px minmax(0, 1fr);
  }

  .page-products .dl-hero__fact {
    padding: 24px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-tab {
    transition: none;
  }
}