.page-products {
  --prod-line: #2A3136;
  --prod-pad: clamp(16px, 2.6vw, 28px);
  background: var(--ink-0);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: var(--step-body);
  line-height: 1.75;
  overflow-x: hidden;
}

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

.page-products .prod-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-products .prod-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 208, 0.45);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-products .prod-link:hover,
.page-products .prod-link:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-products .prod-hero,
.page-products .prod-sec,
.page-products .prod-final {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding: clamp(18px, 3vw, 32px) 0 clamp(44px, 6vw, 78px);
  background-image:
    linear-gradient(180deg, rgba(10, 12, 13, 0.18) 0%, rgba(10, 12, 13, 0.96) 92%),
    repeating-linear-gradient(90deg, rgba(42, 49, 54, 0.52) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(42, 49, 54, 0.32) 0 1px, transparent 1px 72px);
  background-position: center top;
}

.page-products .prod-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(22px, 3.4vw, 38px);
}

.page-products .prod-hero__eyebrow {
  margin: 0;
  font-family: var(--font-num);
  font-size: var(--step-tiny);
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-products .prod-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--bone);
  max-width: 14em;
}

.page-products .prod-hero__deck {
  margin: 18px 0 0;
  max-width: 34em;
  color: rgba(242, 239, 230, 0.76);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-products .prod-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .prod-hero__stats > div {
  background: var(--ink-1);
  padding: 12px 14px;
  min-width: 0;
}

.page-products .prod-hero__stats dt {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-products .prod-hero__stats dd {
  margin: 4px 0 0;
  font-family: var(--font-num);
  font-size: 15px;
  color: rgba(242, 239, 230, 0.86);
  white-space: nowrap;
}

.page-products .prod-hero__panel {
  border: 1px solid var(--prod-line);
  border-left: 3px solid var(--cyan);
  background: rgba(20, 24, 27, 0.88);
  padding: var(--prod-pad);
  min-width: 0;
}

.page-products .prod-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .prod-hero__v {
  margin: 14px 0 12px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(64px, 15vw, 124px);
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: var(--cyan);
}

.page-products .prod-hero__panel-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 239, 230, 0.7);
}

/* ---------- 章节骨架 ---------- */
.page-products .prod-sec {
  position: relative;
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-products .prod-sec--alt {
  background: linear-gradient(180deg, var(--ink-1) 0%, var(--ink-0) 100%);
  border-top: 1px solid var(--prod-line);
  border-bottom: 1px solid var(--prod-line);
}

.page-products .prod-sec--alt::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: repeating-linear-gradient(105deg, var(--cyan-deep) 0 14px, transparent 14px 30px);
  opacity: 0.55;
  pointer-events: none;
}

.page-products .prod-sec__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(24px, 3.4vw, 44px);
  max-width: 66ch;
}

.page-products .prod-sec__eyebrow {
  margin: 0;
  font-family: var(--font-num);
  font-size: var(--step-tiny);
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-products .prod-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.005em;
  color: var(--bone);
}

.page-products .prod-sec__intro {
  margin: 0;
  max-width: 54ch;
  color: rgba(242, 239, 230, 0.72);
}

/* ---------- 平台矩阵 ---------- */
.page-products .prod-plat-grid {
  display: grid;
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .prod-plat-list {
  display: grid;
  gap: 1px;
  background: var(--prod-line);
}

.page-products .prod-plat {
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 6px;
  min-width: 0;
}

.page-products .prod-plat__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--bone);
}

.page-products .prod-plat__size {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--stone);
}

.page-products .prod-plat__size .prod-num {
  font-size: 16px;
}

.page-products .prod-plat__desc {
  margin: 2px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(242, 239, 230, 0.68);
}

.page-products .prod-plat__shot {
  margin: 0;
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.page-products .prod-plat__shot .media,
.page-products .prod-change__figure .media,
.page-products .prod-res__shot .media,
.page-products .prod-flow__figure .media {
  display: block;
  border: 1px solid var(--prod-line);
  overflow: hidden;
  background: var(--ink-0);
}

.page-products .prod-plat__shot img,
.page-products .prod-change__figure img,
.page-products .prod-res__shot img,
.page-products .prod-flow__figure img {
  width: 100%;
  object-fit: cover;
}

.page-products .media__caption {
  font-size: var(--step-tiny);
  line-height: 1.6;
  color: var(--stone);
  padding-top: 8px;
  border-top: 1px dashed var(--prod-line);
}

.page-products .prod-plat__foot {
  margin: 14px 0 0;
  font-size: 13.5px;
  color: var(--stone);
}

/* ---------- 三处变化 ---------- */
.page-products .prod-change-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .prod-change {
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 8px;
  min-width: 0;
}

.page-products .prod-change__idx {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-products .prod-change__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.3;
  color: var(--bone);
}

.page-products .prod-change p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(242, 239, 230, 0.7);
}

.page-products .prod-change__figure {
  grid-column: 1 / -1;
  margin: 0;
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  gap: 10px;
  min-width: 0;
}

/* ---------- 版本阶梯 ---------- */
.page-products .prod-ladder {
  display: grid;
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .prod-ladder__item {
  position: relative;
  overflow: hidden;
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.page-products .prod-ladder__v {
  position: absolute;
  right: clamp(8px, 2vw, 18px);
  bottom: -0.1em;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(56px, 11vw, 104px);
  line-height: 0.8;
  letter-spacing: -0.05em;
  color: rgba(56, 242, 208, 0.13);
  pointer-events: none;
  user-select: none;
}

.page-products .prod-ladder__item--beta .prod-ladder__v {
  color: rgba(255, 210, 74, 0.13);
}

.page-products .prod-ladder__item .tag {
  justify-self: start;
}

.page-products .prod-ladder__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.28;
  color: var(--bone);
  max-width: 18em;
}

.page-products .prod-ladder__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(242, 239, 230, 0.7);
  max-width: 32em;
}

.page-products .prod-ladder__list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-products .prod-ladder__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(242, 239, 230, 0.68);
}

.page-products .prod-ladder__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-products .prod-ladder__item--beta .prod-ladder__list li::before {
  background: var(--yellow);
}

/* ---------- 资源中心 ---------- */
.page-products .prod-res {
  display: grid;
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .prod-res__cal {
  background: var(--ink-1);
  padding: var(--prod-pad);
  min-width: 0;
}

.page-products .prod-cal {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 5px;
}

.page-products .prod-cal__day {
  display: grid;
  place-content: center;
  gap: 4px;
  min-height: 58px;
  border: 1px solid var(--prod-line);
  border-radius: var(--radius);
  background: rgba(42, 49, 54, 0.26);
  min-width: 0;
}

.page-products .prod-cal__label {
  font-family: var(--font-num);
  font-size: 12px;
  line-height: 1;
  color: var(--stone);
  text-align: center;
}

.page-products .prod-cal__day--on {
  border-color: var(--yellow);
  background: rgba(255, 210, 74, 0.14);
  box-shadow: inset 0 -2px 0 var(--yellow);
}

.page-products .prod-cal__day--on .prod-cal__label {
  color: var(--yellow);
  font-weight: 700;
}

.page-products .prod-cal__mark {
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--yellow);
  text-align: center;
}

.page-products .prod-cal__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 239, 230, 0.7);
}

.page-products .prod-res__shot {
  margin: 0;
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.page-products .prod-res__types {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.page-products .prod-res__type {
  border-left: 2px solid var(--clay);
  background: rgba(20, 24, 27, 0.7);
  padding: 14px 16px;
  min-width: 0;
}

.page-products .prod-res__type h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--bone);
}

.page-products .prod-res__type p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 239, 230, 0.68);
}

.page-products .prod-recent {
  margin-top: clamp(24px, 3vw, 38px);
  padding-top: 20px;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-recent__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 23px);
  color: var(--bone);
}

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

.page-products .prod-recent__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: var(--ink-1);
  padding: 13px 14px;
  font-size: 14px;
  color: rgba(242, 239, 230, 0.74);
  min-width: 0;
}

.page-products .prod-recent__text {
  flex: 1 1 12em;
  min-width: 0;
}

.page-products .prod-recent__foot {
  margin: 14px 0 0;
  font-size: 13.5px;
  color: var(--stone);
}

/* ---------- 安装流程 ---------- */
.page-products .prod-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .prod-flow__step {
  position: relative;
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 8px;
  min-width: 0;
}

.page-products .prod-flow__no {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 42px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

.page-products .prod-flow__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  color: var(--bone);
}

.page-products .prod-flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 239, 230, 0.7);
}

.page-products .prod-flow__figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: var(--prod-pad);
  background: var(--ink-1);
  border: 1px solid var(--prod-line);
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-products .prod-flow__tip {
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 3px solid var(--yellow);
  background: rgba(255, 210, 74, 0.07);
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 239, 230, 0.78);
}

.page-products .prod-flow__tip strong {
  color: var(--yellow);
  font-weight: 700;
}

/* ---------- 故障排查 ---------- */
.page-products .prod-fix-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .prod-fix {
  border: 1px solid var(--prod-line);
  background: var(--ink-1);
  padding: var(--prod-pad);
  display: grid;
  align-content: start;
  gap: 8px;
  min-width: 0;
  transition: border-color var(--t-fast) var(--ease);
}

.page-products .prod-fix:hover {
  border-color: rgba(56, 242, 208, 0.4);
}

.page-products .prod-fix__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.38;
  color: var(--bone);
}

.page-products .prod-fix p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 239, 230, 0.68);
}

.page-products .prod-fix--more {
  border-left: 2px solid var(--cyan);
}

.page-products .prod-fix--more .prod-link {
  justify-self: start;
  font-size: 14px;
}

/* ---------- 页尾横幅 ---------- */
.page-products .prod-final {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(56px, 9vw, 118px) 0 clamp(44px, 6vw, 76px);
  border-top: 1px solid var(--prod-line);
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(18, 110, 99, 0.42) 0%, rgba(10, 12, 13, 0.98) 64%),
    var(--ink-0);
}

.page-products .prod-final::before {
  content: "";
  position: absolute;
  top: -40px;
  left: -10%;
  width: 120%;
  height: 72px;
  background: repeating-linear-gradient(105deg, var(--cyan-deep) 0 20px, transparent 20px 44px);
  opacity: 0.4;
  transform: rotate(-2deg);
  pointer-events: none;
}

.page-products .prod-final__media {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: -1;
  opacity: 0.2;
}

.page-products .prod-final__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .prod-final .shell {
  position: relative;
}

.page-products .prod-final__eyebrow {
  margin: 0;
  font-family: var(--font-num);
  font-size: var(--step-tiny);
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-products .prod-final__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 48px);
  line-height: 1.12;
  color: var(--bone);
  max-width: 18em;
}

.page-products .prod-final__deck {
  margin: 16px 0 0;
  max-width: 42em;
  color: rgba(242, 239, 230, 0.74);
}

.page-products .prod-final__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .prod-plat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-res__types {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 700px) {
  .page-products .prod-change-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .prod-fix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-res__types {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .prod-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .prod-flow__step::after {
    content: "";
    position: absolute;
    right: -1px;
    top: 38px;
    width: 16px;
    height: 1px;
    background: var(--cyan);
    opacity: 0.7;
  }

  .page-products .prod-flow__step:last-child::after {
    display: none;
  }

  .page-products .prod-ladder {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-products .prod-hero__panel {
    align-self: stretch;
    display: grid;
    align-content: start;
  }

  .page-products .prod-plat-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: stretch;
  }

  .page-products .prod-res {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .page-products .prod-cal__day {
    min-height: 74px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-link,
  .page-products .prod-fix {
    transition: none;
  }
}
<<<END>>>
已完成：客户端与资源下载页已按「战术板磁贴」方向输出主体 HTML 与页面专属 CSS，包含平台矩阵、V4 变化、版本阶梯、周三资源中心、三步安装与故障排查，全部限定在 .page-products 作用域内。