.page-products {
  --pp-gap: clamp(16px, 2.6vw, 32px);
  --pp-pad: clamp(20px, 3vw, 38px);
  --pp-sec: clamp(44px, 7vw, 92px);
  --pp-frame: 30px 6px 30px 6px;
  display: block;
  padding-block: clamp(20px, 3.4vw, 46px) clamp(56px, 8vw, 104px);
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 520px at 86% -10%, rgba(46, 123, 255, .17), transparent 70%),
    radial-gradient(660px 420px at 0% 26%, rgba(53, 242, 201, .06), transparent 74%);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 面包屑与首屏 ---------- */
.page-products .breadcrumb {
  margin-bottom: clamp(14px, 2vw, 24px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-products .pp-hero {
  display: grid;
  gap: clamp(14px, 1.8vw, 22px);
}

.page-products .pp-hero h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 62px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.025em;
}

.page-products .pp-hero .lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-products .hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
  gap: 1px;
  margin: clamp(6px, 1.6vw, 18px) 0 0;
  padding: 1px;
  list-style: none;
  background: var(--line-soft);
  border-radius: var(--r-card);
  overflow: hidden;
}

.page-products .hero-facts li {
  display: grid;
  gap: 6px;
  padding: clamp(14px, 2vw, 20px) clamp(14px, 2vw, 22px);
  background: linear-gradient(160deg, rgba(22, 33, 58, .92), rgba(12, 18, 32, .96));
}

.page-products .hero-facts b {
  font-size: clamp(26px, 4.2vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--hot);
}

.page-products .hero-facts span {
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-products .pp-sec {
  margin-top: var(--pp-sec);
}

.page-products .section-head {
  display: grid;
  gap: clamp(8px, 1.2vw, 14px);
  max-width: 76ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 38px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
}

.page-products .section-head .lede {
  margin: 0;
  font-size: clamp(14.5px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--muted);
}

.page-products .pp-split {
  gap: var(--pp-gap);
  align-items: start;
}

/* ---------- 研究板面板 ---------- */
.page-products .pp-board {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  align-content: start;
}

.page-products .pp-board h3 {
  margin: 0;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.3;
}

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

.page-products .pp-board p b,
.page-products .pp-board p strong {
  color: var(--ink);
}

.page-products .pp-note {
  padding: clamp(14px, 2vw, 20px);
  border-left: 3px solid var(--hot);
  border-radius: 0 var(--r-card) var(--r-card) 0;
  background: rgba(255, 138, 61, .07);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ice);
}

.page-products .pp-note--wide {
  margin-top: clamp(16px, 2.4vw, 26px);
}

.page-products .pp-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 条件列表 ---------- */
.page-products .cond-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cond-list li {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--brand);
}

.page-products .cond-list b {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .cond-list span {
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 指标行 ---------- */
.page-products .metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .metric-row li {
  padding-top: 10px;
  border-top: 2px solid var(--line);
}

.page-products .metric-row b {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--hot);
}

.page-products .metric-row span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 指标标签墙 ---------- */
.page-products .metric-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .metric-tags li {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ice);
  background: rgba(22, 33, 58, .55);
}

/* ---------- 折叠说明 ---------- */
.page-products .pp-fold {
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.page-products .pp-fold summary {
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ice);
  list-style: none;
}

.page-products .pp-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .pp-fold summary::before {
  content: "＋";
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  color: var(--hot);
}

.page-products .pp-fold[open] summary::before {
  content: "－";
}

.page-products .pp-fold p {
  margin: 10px 0 0;
}

/* ---------- 四层索引 ---------- */
.page-products .layer-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0 0 0 2px;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-products .layer-list li {
  position: relative;
  display: grid;
  gap: 3px;
  padding: 12px 0 12px 22px;
}

.page-products .layer-list li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(53, 242, 201, .14);
}

.page-products .layer-list b {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .layer-list span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 关注清单三块 ---------- */
.page-products .list-facts {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--line-soft);
  border-radius: var(--r-card);
  overflow: hidden;
}

.page-products .list-facts li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 16px;
  padding: clamp(16px, 2.4vw, 24px) clamp(16px, 2.4vw, 26px);
  background: linear-gradient(150deg, rgba(22, 33, 58, .9), rgba(12, 18, 32, .96));
}

.page-products .list-facts b {
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--brand);
}

.page-products .list-facts span {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .list-facts strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 步骤条 ---------- */
.page-products .step-rail {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: ppstep;
}

.page-products .step-rail > li {
  counter-increment: ppstep;
  display: flex;
}

.page-products .step-card {
  display: grid;
  gap: 7px;
  width: 100%;
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  background: rgba(12, 18, 32, .8);
  text-decoration: none;
  color: inherit;
  transition: border-color .16s var(--ease), transform .16s var(--ease), background .16s var(--ease);
}

.page-products .step-card::before {
  content: "0" counter(ppstep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--hot);
}

.page-products .step-card b {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .step-card span {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .step-card:hover,
.page-products .step-card:focus-visible {
  border-color: var(--hot);
  background: rgba(22, 33, 58, .92);
  transform: translateY(-4px);
}

/* ---------- 版本对照表 ---------- */
.page-products .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  background: rgba(12, 18, 32, .72);
}

.page-products .table-scroll:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 4px;
}

.page-products table.cmp {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products table.cmp thead th {
  position: sticky;
  top: 0;
  padding: 14px 16px;
  text-align: left;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ice);
  background: var(--layer);
}

.page-products table.cmp th,
.page-products table.cmp td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
  line-height: 1.65;
}

.page-products table.cmp tbody th {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.page-products table.cmp tbody td {
  color: var(--muted);
}

.page-products table.cmp tbody td.new {
  color: var(--hot-soft);
}

.page-products table.cmp tbody tr:last-child th,
.page-products table.cmp tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 场景错位网格 ---------- */
.page-products .scene-grid {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .scene-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: var(--pp-pad);
}

.page-products .scene-card h3 {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-products .scene-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .scene-card .eyebrow {
  margin: 0;
}

/* ---------- 功能区 Tab ---------- */
.page-products .func-switch {
  position: relative;
}

.page-products .func-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip-path: inset(50%);
  overflow: hidden;
}

.page-products .func-radio:focus-visible ~ .func-tabs {
  outline: 2px solid var(--ice);
  outline-offset: 5px;
  border-radius: 14px;
}

.page-products .func-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(14px, 2vw, 20px);
}

.page-products .func-tab {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--muted);
  background: rgba(22, 33, 58, .5);
  transition: color .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease);
}

.page-products .func-tab:hover {
  color: var(--ice);
  border-color: var(--ice);
}

.page-products #fct-1:checked ~ .func-tabs label[for="fct-1"],
.page-products #fct-2:checked ~ .func-tabs label[for="fct-2"],
.page-products #fct-3:checked ~ .func-tabs label[for="fct-3"] {
  color: var(--bg);
  background: var(--hot);
  border-color: var(--hot);
}

.page-products .func-pane {
  display: none;
}

.page-products #fct-1:checked ~ .func-pane--1,
.page-products #fct-2:checked ~ .func-pane--2,
.page-products #fct-3:checked ~ .func-pane--3 {
  display: grid;
  gap: clamp(12px, 1.8vw, 18px);
  animation: pp-pane-in .24s var(--ease) both;
}

@keyframes pp-pane-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-products .func-pane h3 {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
}

.page-products .func-pane > p {
  margin: 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 延伸阅读链接 ---------- */
.page-products .more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-products .more-link:hover,
.page-products .more-link:focus-visible {
  color: var(--hot-soft);
  border-color: var(--hot-soft);
}

/* ---------- 大屏看球：设备与比例 ---------- */
.page-products .pp-devices {
  margin-top: var(--pp-gap);
}

.page-products .device-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .device-chips li {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: .03em;
  color: var(--ice);
  background: rgba(22, 33, 58, .55);
}

.page-products .ratio-switch {
  position: relative;
  display: grid;
  gap: 14px;
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  background: rgba(5, 7, 15, .5);
}

.page-products .ratio-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  clip-path: inset(50%);
  overflow: hidden;
}

.page-products .ratio-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .ratio-tabs label {
  cursor: pointer;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--muted);
  transition: color .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease);
}

.page-products .ratio-tabs label:hover {
  color: var(--ice);
  border-color: var(--ice);
}

.page-products #ratio-16:checked ~ .ratio-tabs label[for="ratio-16"],
.page-products #ratio-auto:checked ~ .ratio-tabs label[for="ratio-auto"] {
  color: var(--bg);
  background: var(--lime);
  border-color: var(--lime);
}

.page-products .ratio-stage {
  display: grid;
  place-items: center;
  padding: 16px;
  min-height: 140px;
  border: 1px dashed var(--line);
  border-radius: var(--r-card);
  background:
    repeating-linear-gradient(45deg, rgba(127, 216, 255, .055) 0 8px, transparent 8px 16px);
}

.page-products .ratio-frame {
  display: none;
  width: 100%;
  place-items: center;
  border: 2px solid var(--hot);
  border-radius: 10px;
  background: linear-gradient(120deg, rgba(46, 123, 255, .3), rgba(53, 242, 201, .14));
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ink);
}

.page-products .ratio-frame--wide {
  aspect-ratio: 16 / 9;
}

.page-products .ratio-frame--auto {
  aspect-ratio: 2 / 1;
}

.page-products #ratio-16:checked ~ .ratio-stage .ratio-frame--wide {
  display: grid;
  animation: pp-pane-in .2s var(--ease) both;
}

.page-products #ratio-auto:checked ~ .ratio-stage .ratio-frame--auto {
  display: grid;
  animation: pp-pane-in .2s var(--ease) both;
}

.page-products .pp-figure--device {
  margin-top: 4px;
}

/* ---------- 图片 ---------- */
.page-products .pp-figure {
  margin: 0;
}

.page-products .pp-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-card);
}

/* ---------- 收尾 ---------- */
.page-products .pp-cta__panel {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  padding: clamp(22px, 3.4vw, 44px);
}

.page-products .pp-cta__panel h2 {
  margin: 0 0 10px;
  font-size: clamp(21px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-products .pp-cta__panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .pp-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-products .step-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    position: relative;
  }

  .page-products .list-facts li {
    grid-template-columns: minmax(110px, auto) 1fr;
  }

  .page-products .pp-cta__panel {
    grid-template-columns: 1.4fr .9fr;
    align-items: center;
  }

  .page-products .pp-cta__links {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-products .scene-grid {
    grid-template-columns: 1.35fr 1fr 1fr;
    align-items: start;
  }

  .page-products .scene-card:nth-child(2) {
    margin-top: 30px;
  }

  .page-products .scene-card:nth-child(3) {
    margin-top: 60px;
  }

  .page-products .func-pane {
    padding: var(--pp-pad);
  }
}

@media (max-width: 639px) {
  .page-products .hero-facts {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .hero-facts li:first-child {
    grid-column: 1 / -1;
  }

  .page-products .list-facts li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-products .func-pane .metric-row {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .pp-cta__links .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}
<<<END>>>