.page-products {
  --pd-radius: 3px;
  --pd-col-a: 190px;
  --pd-col-c: 260px;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-products__crumbs {
  padding-top: clamp(16px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding-bottom: clamp(26px, 4vw, 44px);
}

.page-products .pd-hero .eyebrow {
  margin: 0;
}

.page-products .pd-hero__title {
  margin: clamp(12px, 2vw, 22px) 0 0;
  max-width: 15ch;
  color: var(--title);
}

.page-products .pd-hero__lede {
  max-width: 36em;
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  color: var(--text);
}

.page-products .pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .pd-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- 通用图片容器 ---------- */
.page-products .pd-media {
  margin: clamp(26px, 4vw, 52px) 0 0;
  padding: 0;
}

.page-products .pd-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background: var(--ink-2);
}

.page-products .pd-media__cap {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pd-media--wide {
  margin-top: clamp(30px, 4vw, 54px);
}

.page-products .pd-media--install {
  margin-top: 0;
  margin-bottom: clamp(30px, 4vw, 52px);
}

/* ---------- 章节头 ---------- */
.page-products .pd-sec {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-products .pd-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(52px, 9vw, 124px);
  line-height: 0.82;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.page-products .pd-num--ghost {
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  text-stroke: 1px var(--line);
}

.page-products .pd-sec__text h2 {
  margin: 0;
  color: var(--title);
}

.page-products .pd-sec__lede {
  max-width: 40em;
  margin: 14px 0 0;
  color: var(--text);
}

@media (min-width: 860px) {
  .page-products .pd-sec {
    grid-template-columns: var(--pd-col-a) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

/* ---------- 版本矩阵 ---------- */
.page-products .pd-matrix-fig {
  margin: 0 0 clamp(24px, 3.5vw, 40px);
  padding: 0;
}

.page-products .pd-matrix-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background: var(--ink-2);
}

.page-products .pd-matrix {
  border-bottom: 1px solid var(--line);
}

.page-products .pd-matrix__head {
  display: none;
}

.page-products .pd-vrow {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 32px) 0;
  border-top: 1px solid var(--line);
  transition: background 200ms var(--ease);
}

.page-products .pd-vrow--lead {
  border-top-color: var(--accent-dim);
}

.page-products .pd-vrow--legacy {
  border-top-color: var(--amber);
}

.page-products .pd-vrow__id {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-products .pd-vrow__ver {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-products .pd-vrow--legacy .pd-vrow__ver {
  color: var(--amber);
}

.page-products .pd-vrow__name {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--title);
}

.page-products .pd-vrow__desc {
  max-width: 42em;
  margin: 8px 0 0;
  color: var(--text);
}

.page-products .pd-vrow__spec {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-products .pd-spec {
  display: grid;
  gap: 3px;
}

.page-products .pd-spec dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pd-spec dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

@media (min-width: 900px) {
  .page-products .pd-matrix__head {
    display: grid;
    grid-template-columns: var(--pd-col-a) minmax(0, 1fr) var(--pd-col-c);
    gap: 28px;
    padding: 0 0 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--muted);
  }

  .page-products .pd-vrow {
    grid-template-columns: var(--pd-col-a) minmax(0, 1fr) var(--pd-col-c);
    gap: 0 28px;
    align-items: start;
  }

  .page-products .pd-vrow:hover {
    background: rgba(158, 232, 79, 0.035);
  }
}

/* ---------- 平台 ---------- */
.page-products .pd-plats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  overflow: hidden;
}

.page-products .pd-plat {
  background: var(--card);
  padding: 24px 22px 26px;
}

.page-products .pd-plat__name {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--title);
}

.page-products .pd-plat__req {
  margin: 14px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.page-products .pd-plat__mem {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pd-plat__note {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

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

@media (min-width: 1080px) {
  .page-products .pd-plats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 旧版入口 ---------- */
.page-products .pd-legacy__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

.page-products .pd-legacy__text h2 {
  margin: 12px 0 0;
  color: var(--title);
}

.page-products .pd-legacy__text p {
  max-width: 38em;
  margin: 16px 0 0;
  color: var(--text);
}

.page-products .pd-legacy__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-products .pd-legacy__list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-products .pd-legacy__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 1px;
}

.page-products .pd-legacy__list .mono {
  margin-right: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pd-legacy__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 26px;
}

.page-products .pd-legacy__media {
  margin: 0;
}

.page-products .pd-legacy__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background: var(--ink-2);
}

@media (min-width: 900px) {
  .page-products .pd-legacy__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .pd-legacy__media {
    margin-top: -36px;
  }
}

/* ---------- 安装三步 ---------- */
.page-products .pd-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0 18px;
  padding-bottom: clamp(26px, 3.4vw, 42px);
}

.page-products .pd-step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 48px;
  bottom: 4px;
  width: 1px;
  background: var(--line);
}

.page-products .pd-step__num {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent-dim);
  border-radius: 50%;
  background: var(--ink);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.page-products .pd-step__body {
  padding-top: 4px;
  max-width: 40em;
}

.page-products .pd-step__title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  color: var(--title);
}

.page-products .pd-step__body > p {
  margin: 10px 0 0;
  color: var(--text);
}

.page-products .pd-fields {
  list-style: none;
  margin: 16px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
}

.page-products .pd-fields li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-products .pd-fields li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 1px;
}

.page-products .pd-fields .mono {
  margin-right: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pd-fold {
  margin-top: 16px;
  padding: 7px 13px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-products .pd-fold:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
}

.page-products .pd-step__extra {
  margin-top: 14px;
  padding: 12px 0 12px 16px;
  border-left: 2px solid var(--amber);
  background: rgba(226, 166, 75, 0.06);
}

.page-products .pd-step__extra p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-products .pd-step__extra p:last-child {
  margin-bottom: 0;
}

.page-products .pd-step__extra .mono {
  margin-right: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-products .pd-copyrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 8px 12px;
  border: 1px dashed var(--line);
  border-radius: 2px;
}

.page-products .pd-copyrow .copy-field__value {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text);
}

/* ---------- 首次登录 ---------- */
.page-products .pd-login__lede {
  max-width: 40em;
  margin: 14px 0 0;
  color: var(--text);
}

.page-products .pd-route {
  list-style: none;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  overflow: hidden;
}

.page-products .pd-route__item {
  background: var(--card);
  padding: 26px 22px 28px;
}

.page-products .pd-route__idx {
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-products .pd-route__name {
  margin: 12px 0 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--title);
}

.page-products .pd-route__item p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-products .pd-login__next {
  margin-top: clamp(26px, 3.5vw, 40px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 18px;
}

.page-products .pd-login__next p {
  max-width: 40em;
  margin: 0;
  color: var(--text);
}

.page-products .pd-login__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 780px) {
  .page-products .pd-route {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 差异对照表 ---------- */
.page-products .pd-diff {
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .pd-diff table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pd-diff__caption {
  caption-side: top;
  text-align: left;
  padding: 16px 18px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
}

.page-products .pd-diff th {
  text-align: left;
  padding: 13px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
  white-space: nowrap;
}

.page-products .pd-diff td {
  padding: 14px 18px;
  vertical-align: top;
  line-height: 1.7;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.page-products .pd-diff tbody tr:nth-child(even) {
  background: rgba(201, 214, 206, 0.035);
}

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

.page-products .pd-diff td:first-child {
  color: var(--title);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .pd-diff .pd-legacy-col {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-products .pd-diff .pd-mark {
  border-bottom: 1px dashed var(--amber);
  padding-bottom: 2px;
}

.page-products .pd-diff__foot {
  max-width: 40em;
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 常见问题 ---------- */
.page-products .pd-faq {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pd-faq__item {
  padding: clamp(20px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pd-faq__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}

.page-products .pd-faq__q {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--title);
  max-width: 34em;
}

.page-products .pd-faq__body {
  max-width: 40em;
  margin-top: 12px;
}

.page-products .pd-faq__body p {
  margin: 0 0 8px;
  color: var(--text);
}

.page-products .pd-faq__body p:last-child {
  margin-bottom: 0;
}

.page-products .pd-faq__body .mono {
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-left: 2px solid var(--line);
  padding-left: 14px;
}

.page-products .pd-faq__foot {
  margin-top: clamp(26px, 3.5vw, 40px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 16px;
}

.page-products .pd-faq__foot p {
  max-width: 40em;
  margin: 0;
  color: var(--text);
}

.page-products .pd-faq__links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

/* ---------- 收尾 ---------- */
.page-products .pd-cta {
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(28px, 4vw, 44px) 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
}

.page-products .pd-cta__text {
  max-width: 34em;
  margin: 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.6;
  color: var(--title);
}

.page-products .pd-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 900px) {
  .page-products .pd-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .pd-vrow,
  .page-products .pd-fold {
    transition: opacity 120ms linear;
  }
}
<<<END>>>