.page-products {
  --pl-gap: clamp(14px, 2.2vw, 24px);
  --pl-pad: clamp(16px, 3vw, 32px);
  --pl-paper-line: rgba(20, 24, 30, 0.22);
  --pl-paper-mute: rgba(20, 24, 30, 0.72);
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

.page-products .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.page-products h2 {
  margin: 0;
  font-size: var(--fs-h2);
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-products h3 {
  margin: 0;
  font-size: var(--fs-h3);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-products .eyebrow {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-products .breadcrumb {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-products .media-frame {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-850);
  position: relative;
}

.page-products .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.page-products .media-frame--tall .media-frame__img {
  aspect-ratio: 5 / 4;
}

.page-products .media-frame__caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--slate);
  font-size: var(--fs-mini);
  line-height: 1.6;
}

/* ---------- 首屏框景 ---------- */
.pl-hero {
  position: relative;
  padding-block: clamp(20px, 3.5vw, 40px) clamp(32px, 5vw, 64px);
  background: linear-gradient(180deg, var(--ink-850) 0%, var(--ink-900) 100%);
  border-bottom: 1px solid var(--line);
}

.pl-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    var(--line) 0 1px,
    transparent 1px 96px
  );
  opacity: 0.55;
  pointer-events: none;
}

.pl-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(18px, 3.6vw, 44px);
  border: 1px solid var(--line-strong);
  background: rgba(7, 10, 15, 0.72);
}

.pl-hero__inner::before,
.pl-hero__inner::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  pointer-events: none;
}

.pl-hero__inner::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--orange);
  border-left: 2px solid var(--orange);
}

.pl-hero__inner::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
}

.pl-hero__main {
  display: grid;
  gap: 14px;
  align-content: start;
}

.pl-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5.6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 800;
  color: var(--paper);
  max-width: 18ch;
}

.pl-hero__lede {
  margin: 0;
  max-width: 60ch;
  color: var(--slate);
  font-size: var(--fs-body);
  line-height: 1.8;
}

.pl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.pl-hero__panel {
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  background: var(--ink-800);
  padding: 16px 16px 18px;
  align-self: start;
}

.pl-panel__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.16em;
  color: var(--slate-soft);
}

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

.pl-index__item + .pl-index__item {
  border-top: 1px solid var(--line);
}

.pl-index__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: baseline;
  padding: 11px 2px;
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-small);
  min-height: 44px;
  transition: color var(--dur-1) var(--ease);
}

.pl-index__link:hover,
.pl-index__link:focus-visible {
  color: var(--cyan);
}

.pl-index__no {
  color: var(--orange);
  font-size: var(--fs-mini);
}

.pl-index__name {
  font-weight: 600;
}

.pl-index__meta {
  color: var(--slate-soft);
  font-size: var(--fs-mini);
  white-space: nowrap;
}

.pl-panel__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  color: var(--slate);
  font-size: var(--fs-mini);
  line-height: 1.7;
}

/* ---------- 通用区块 ---------- */
.pl-section {
  padding-block: clamp(40px, 7vw, 84px);
}

.pl-section__head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.6vw, 40px);
}

.pl-section__lede {
  margin: 0;
  color: var(--slate);
  font-size: var(--fs-body);
  line-height: 1.8;
}

/* ---------- 三条赛道 ---------- */
.pl-lanes__grid {
  display: grid;
  gap: var(--pl-gap);
}

.pl-lane {
  position: relative;
  padding: var(--pl-pad);
  background: var(--ink-800);
  border: 1px solid var(--line);
  display: grid;
  gap: 10px;
  align-content: start;
  transition: transform var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.pl-lane::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 3px;
}

.pl-lane--a::before {
  background: linear-gradient(90deg, var(--orange) 0%, rgba(255, 90, 31, 0.05) 100%);
}

.pl-lane--b::before {
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(31, 224, 208, 0.05) 100%);
}

.pl-lane--c::before {
  background: linear-gradient(90deg, var(--gold) 0%, rgba(201, 162, 39, 0.05) 100%);
}

.pl-lane:hover {
  border-color: rgba(31, 224, 208, 0.45);
  transform: translateY(-4px);
}

.pl-lane__no {
  margin: 0;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1;
  font-weight: 700;
  color: rgba(233, 224, 207, 0.16);
}

.pl-lane__q {
  margin: 0;
  color: var(--paper);
  font-size: var(--fs-small);
  line-height: 1.65;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.pl-lane__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.pl-lane__list li {
  position: relative;
  padding-left: 15px;
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.7;
}

.pl-lane__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

.pl-lane__fit {
  margin: 4px 0 0;
  font-size: var(--fs-mini);
  color: var(--slate-soft);
  line-height: 1.65;
}

.pl-lane__link {
  justify-self: start;
  margin-top: 2px;
  color: var(--orange);
  text-decoration: none;
  font-size: var(--fs-small);
  font-weight: 700;
  border-bottom: 1px solid rgba(255, 90, 31, 0.4);
  padding-bottom: 3px;
  min-height: 24px;
}

.pl-lane__link:hover,
.pl-lane__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.pl-lanes__figure {
  margin-top: clamp(22px, 3.6vw, 40px) !important;
}

/* ---------- 版本区（暖纸） ---------- */
.pl-versions {
  background: var(--paper);
  color: var(--paper-ink);
  border-block: 1px solid var(--line-paper-strong);
}

.pl-versions .eyebrow {
  color: #8a6a1e;
}

.pl-versions h2 {
  color: var(--paper-ink);
}

.pl-versions__lede {
  margin: 0 0 4px;
  color: var(--pl-paper-mute);
  font-size: var(--fs-body);
  line-height: 1.8;
  max-width: 46ch;
}

.pl-split {
  display: grid;
  gap: clamp(20px, 3.2vw, 40px);
}

.pl-split__text {
  display: grid;
  gap: 12px;
  align-content: start;
}

.pl-split__figure .media-frame__caption,
.pl-versions .media-frame__caption {
  border-top-color: var(--line-paper-strong);
  color: var(--pl-paper-mute);
}

.pl-versions .media-frame {
  border-color: var(--line-paper-strong);
  background: var(--paper-dim);
}

.pl-timeline {
  list-style: none;
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line-paper-strong);
  display: grid;
  gap: 8px;
}

.pl-timeline__item {
  position: relative;
}

.pl-timeline__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 15px;
  width: 9px;
  height: 9px;
  background: var(--orange);
  outline: 1px solid var(--line-paper-strong);
}

.pl-fold {
  border: 1px solid var(--pl-paper-line);
  background: rgba(255, 255, 255, 0.35);
}

.pl-fold__summary {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 11px 13px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--paper-ink);
  min-height: 44px;
}

.pl-fold__summary::-webkit-details-marker {
  display: none;
}

.pl-fold__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--orange);
  font-weight: 700;
}

.pl-fold[open] .pl-fold__summary::after {
  content: "–";
}

.pl-fold__no {
  font-size: var(--fs-mini);
  color: #8a6a1e;
  letter-spacing: 0.06em;
}

.pl-fold__body {
  padding: 0 13px 13px;
  font-size: var(--fs-mini);
  line-height: 1.8;
  color: var(--pl-paper-mute);
}

.pl-fold__body p {
  margin: 0;
}

/* ---------- 阅读顺序 ---------- */
.pl-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: none;
}

.pl-step {
  position: relative;
  padding: 18px 20px 20px;
  background: linear-gradient(158deg, var(--ink-800) 0%, var(--ink-850) 100%);
  border-left: 2px solid var(--cyan);
  display: grid;
  gap: 7px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.pl-step__no {
  margin: 0;
  font-size: var(--fs-mini);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.pl-step__title {
  color: var(--paper);
  font-size: var(--fs-small);
  font-weight: 700;
}

.pl-step__text {
  margin: 0;
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.75;
}

.pl-path__note {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  font-size: var(--fs-small);
  color: var(--slate);
  line-height: 1.75;
}

.pl-path__note a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 90, 31, 0.4);
}

.pl-path__note a:hover,
.pl-path__note a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 桌面端 ---------- */
.pl-desktop {
  border-top: 1px solid var(--line);
}

.pl-desktop__media {
  display: grid;
  gap: var(--pl-gap);
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

.pl-steps--desk {
  margin-bottom: clamp(24px, 4vw, 42px);
}

.pl-steps--desk .pl-step {
  border-left-color: var(--orange);
}

.pl-steps--desk .pl-step__no {
  color: var(--orange);
}

.pl-envs__head {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
}

.pl-sub {
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--paper);
  padding-left: 10px;
  border-left: 3px solid var(--gold);
}

.pl-envs__head p {
  margin: 0;
  color: var(--slate-soft);
  font-size: var(--fs-mini);
}

.pl-envs {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 40px);
  padding: 0;
  display: grid;
  gap: 8px;
}

.pl-env {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: var(--ink-850);
  border-left: 2px solid var(--cyan);
}

.pl-env__name {
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--paper);
}

.pl-env__text {
  font-size: var(--fs-mini);
  line-height: 1.7;
  color: var(--slate);
}

.pl-params {
  display: grid;
  gap: 8px;
}

.pl-param {
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--line-paper-strong);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.34);
}

.pl-param__summary {
  display: flex;
  gap: 9px;
  align-items: baseline;
  padding: 11px 12px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-small);
  font-weight: 600;
  min-height: 44px;
}

.pl-param__summary::-webkit-details-marker {
  display: none;
}

.pl-param__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--orange);
  font-weight: 700;
}

.pl-param[open] .pl-param__summary::after {
  content: "–";
}

.pl-param__no {
  font-size: var(--fs-mini);
  color: #8a6a1e;
}

.pl-param__body {
  margin: 0;
  padding: 0 12px 12px;
  font-size: var(--fs-mini);
  line-height: 1.75;
  color: var(--pl-paper-mute);
}

/* ---------- 横向对比（暖纸） ---------- */
.pl-compare {
  background: var(--paper);
  color: var(--paper-ink);
  border-block: 1px solid var(--line-paper-strong);
}

.pl-compare .eyebrow {
  color: #8a6a1e;
}

.pl-compare .pl-section__lede {
  color: var(--pl-paper-mute);
}

.pl-compare__figure {
  margin-bottom: clamp(18px, 3vw, 28px) !important;
}

.pl-compare .media-frame {
  border-color: var(--line-paper-strong);
  background: var(--paper-dim);
}

.pl-compare .media-frame__caption {
  border-top-color: var(--line-paper-strong);
  color: var(--pl-paper-mute);
}

.pl-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-paper-strong);
  background: var(--paper);
}

.pl-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: var(--fs-mini);
}

.pl-table thead th {
  text-align: left;
  padding: 11px 13px;
  background: var(--paper-dim);
  color: var(--paper-ink);
  font-size: var(--fs-mini);
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line-paper-strong);
  white-space: nowrap;
}

.pl-table__row th,
.pl-table__row td {
  padding: 10px 13px;
  border-top: 1px solid var(--pl-paper-line);
  vertical-align: top;
  text-align: left;
  line-height: 1.65;
}

.pl-table__row th {
  font-size: var(--fs-small);
  font-weight: 700;
  white-space: nowrap;
  color: var(--paper-ink);
}

.pl-table__row td {
  color: var(--pl-paper-mute);
}

.pl-table__row--diff th {
  box-shadow: inset 3px 0 0 var(--orange);
}

.pl-table__row--diff td:last-child {
  background: rgba(255, 90, 31, 0.06);
}

.pl-fold--tight {
  border-color: var(--pl-paper-line);
  background: transparent;
}

.pl-fold--tight .pl-fold__summary {
  padding: 2px 0;
  min-height: 0;
  font-size: var(--fs-mini);
  color: #8a6a1e;
}

.pl-fold--tight .pl-fold__summary::after {
  color: var(--orange);
}

.pl-fold--tight .pl-fold__body {
  padding: 6px 0 2px;
  color: var(--pl-paper-mute);
}

/* ---------- 场景与 CTA ---------- */
.pl-scenarios {
  display: grid;
  gap: var(--pl-gap);
}

.pl-scenario {
  padding: var(--pl-pad);
  background: var(--ink-850);
  border: 1px solid var(--line);
  display: grid;
  gap: 8px;
  align-content: start;
}

.pl-scenario__who {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.1em;
  color: var(--gold);
}

.pl-scenario__title {
  color: var(--paper);
  font-size: var(--fs-small);
  font-weight: 700;
}

.pl-scenario__text {
  margin: 0;
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.75;
}

.pl-scenario__link {
  justify-self: start;
  margin-top: 4px;
  color: var(--cyan);
  font-size: var(--fs-mini);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 224, 208, 0.45);
  padding-bottom: 2px;
  min-height: 24px;
}

.pl-scenario__link:hover,
.pl-scenario__link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.pl-cta {
  margin-top: clamp(22px, 3.6vw, 38px);
  padding: var(--pl-pad);
  display: grid;
  gap: 16px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(115deg, rgba(255, 90, 31, 0.14) 0%, rgba(7, 10, 15, 0) 62%), var(--ink-800);
}

.pl-cta__title {
  color: var(--paper);
  font-size: var(--fs-h3);
}

.pl-cta__text {
  margin: 8px 0 0;
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.75;
  max-width: 56ch;
}

.pl-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 常见问题 ---------- */
.pl-questions {
  border-top: 1px solid var(--line);
}

.pl-q-list {
  border-bottom: 1px solid var(--line);
}

.pl-q {
  border-top: 1px solid var(--line);
}

.pl-q:first-child {
  border-top: 0;
}

.pl-q__summary {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--paper);
  min-height: 44px;
}

.pl-q__summary::-webkit-details-marker {
  display: none;
}

.pl-q__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--cyan);
  font-weight: 700;
}

.pl-q[open] .pl-q__summary::after {
  content: "–";
}

.pl-q__body {
  padding: 0 0 16px;
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.8;
  max-width: 68ch;
}

.pl-q__body p {
  margin: 0;
}

.pl-q__body a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 90, 31, 0.4);
}

.pl-q__body a:hover,
.pl-q__body a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 焦点可见 ---------- */
.page-products a:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .pl-envs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pl-params {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .pl-hero__inner {
    grid-template-columns: minmax(0, 1.68fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .pl-lanes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .pl-lane--b {
    margin-top: 26px;
  }

  .pl-lane--c {
    margin-top: 52px;
  }

  .pl-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pl-scenarios {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pl-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .pl-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .pl-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .pl-desktop__media {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    align-items: end;
  }

  .pl-desktop__media .media-frame--tall {
    margin-bottom: -14px;
  }
}

@media (min-width: 1040px) {
  .pl-params {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .pl-lane,
  .pl-lane:hover {
    transition: none;
    transform: none;
  }
}
<<<END>>>