.page-products {
  --pp-radius: var(--r-md);
  --pp-hair: 1px solid var(--line);
  padding-block: clamp(18px, 2.6vw, 32px) clamp(48px, 7vw, 88px);
  position: relative;
  isolation: isolate;
}

.page-products::before {
  content: "";
  position: absolute;
  inset: -60px 0 auto 0;
  height: min(660px, 82vh);
  background:
    radial-gradient(58% 70% at 84% 0%, rgba(59, 185, 255, .16), transparent 66%),
    radial-gradient(46% 56% at 6% 4%, rgba(125, 255, 138, .10), transparent 70%),
    linear-gradient(180deg, rgba(20, 35, 44, .6), transparent 88%);
  pointer-events: none;
  z-index: -1;
}

.page-products .breadcrumbs {
  margin-bottom: clamp(16px, 2.4vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-products a {
  color: var(--blue);
}

.page-products h2 {
  margin: 0;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -.015em;
  font-weight: 800;
}

.page-products h3 {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 700;
}

/* ---------- 首屏 ---------- */

.prod-hero {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  padding-bottom: clamp(28px, 4vw, 52px);
  border-bottom: var(--pp-hair);
}

.prod-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--green);
}

.prod-hero h1 {
  margin: 0 0 18px;
  max-width: 22ch;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.05;
  letter-spacing: -.03em;
  font-weight: 800;
  text-wrap: balance;
}

.prod-hero .lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15.5px, 1.8vw, 18px);
  line-height: 1.78;
  color: var(--text);
}

.prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 2.6vw, 28px);
}

.prod-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line-soft);
  border: var(--pp-hair);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.prod-facts__item {
  background: var(--panel);
  padding: 16px 16px 18px;
}

.prod-facts dt {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.prod-facts dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.prod-facts__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--green);
  letter-spacing: -.02em;
}

.prod-facts__unit {
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */

.prod-section {
  margin-top: clamp(44px, 6vw, 76px);
}

.prod-section__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 2.8vw, 32px);
  padding-left: 14px;
  border-left: 2px solid var(--moss);
}

.prod-section__note {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 技能树 + 标签页 ---------- */

.skill {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.skill__tree .eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
}

.skill__tree ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill__node {
  position: relative;
  display: block;
  padding: 0 0 20px 24px;
  border-left: 1px solid var(--line);
}

.skill__node:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.skill__node::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--moss);
}

.skill__node:nth-child(2)::before { border-color: var(--blue); }
.skill__node:nth-child(3)::before { border-color: var(--blue); }
.skill__node:nth-child(4)::before {
  border-color: var(--green);
  background: rgba(125, 255, 138, .24);
}
.skill__node:nth-child(5)::before { border-color: var(--orange); }

.skill__name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
}

.skill__meta {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--muted);
}

.skill__main {
  min-width: 0;
}

.prod-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 2.6vw, 28px);
}

.prod-tabs .tabs__tab {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  padding: 9px 15px;
  border-radius: 999px;
  border: var(--pp-hair);
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
  transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
}

.prod-tabs .tabs__tab:hover {
  color: var(--text);
  border-color: var(--moss);
}

.prod-tabs .tabs__tab[aria-selected="true"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink-on-green);
  font-weight: 600;
}

.prod-tabs .tabs__tab:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.prod-panel {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  padding-top: 4px;
}

.prod-panel > p {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

.prod-media {
  margin: 4px 0 0;
}

.prod-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.prod-media .media__cap {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .03em;
  color: var(--muted);
}

.spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: var(--pp-hair);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.spec-list li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: var(--panel);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.spec-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--blue);
}

/* ---------- 导出字段块 ---------- */

.export-code {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: var(--pp-hair);
  border-radius: var(--pp-radius);
  background: linear-gradient(160deg, rgba(59, 185, 255, .07), transparent 70%), var(--ink);
  overflow-x: auto;
}

.export-code__line {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
  white-space: nowrap;
}

.export-code__line b {
  color: var(--green);
  font-weight: 600;
}

.export-code__meta {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--orange);
}

/* ---------- 兼容表 ---------- */

.compat-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.compat-table caption {
  caption-side: top;
  padding-bottom: 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

.compat-table th,
.compat-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: var(--pp-hair);
  vertical-align: top;
  line-height: 1.6;
}

.compat-table thead th {
  background: var(--panel-2);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
}

.compat-table tbody th {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.compat-table td {
  color: var(--muted);
}

.page-products .chip {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  white-space: nowrap;
}

.page-products .chip--ok {
  color: var(--green);
  border-color: rgba(125, 255, 138, .42);
  background: rgba(125, 255, 138, .10);
}

.page-products .chip--info {
  color: var(--blue);
  border-color: rgba(59, 185, 255, .42);
  background: rgba(59, 185, 255, .10);
}

.page-products .chip--warn {
  color: var(--orange);
  border-color: rgba(255, 159, 74, .44);
  background: rgba(255, 159, 74, .10);
}

.prod-panel .callout {
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.prod-panel .callout p {
  margin: 0 0 10px;
}

.prod-panel .callout p:last-child {
  margin-bottom: 0;
}

/* ---------- 场景组合 ---------- */

.scenario-list {
  border-top: var(--pp-hair);
}

.scenario {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: var(--pp-hair);
}

.scenario__no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .16em;
  color: var(--blue);
}

.scenario__title {
  font-size: clamp(18px, 2.4vw, 22px);
}

.scenario__body p {
  margin: 0 0 10px;
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--text);
}

.scenario__fit {
  font-family: var(--font-mono);
  font-size: 11.8px;
  letter-spacing: .04em;
  color: var(--muted) !important;
}

.scenario__fit span {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  border-radius: var(--r-sm);
  background: rgba(79, 122, 99, .28);
  color: var(--text);
}

/* ---------- 上手步骤 ---------- */

.steps {
  display: grid;
  gap: 10px;
}

.step {
  border: var(--pp-hair);
  border-radius: var(--pp-radius);
  background: var(--panel);
  transition: border-color .2s var(--ease);
}

.step[open] {
  border-color: rgba(125, 255, 138, .38);
  background: linear-gradient(150deg, rgba(125, 255, 138, .06), transparent 60%), var(--panel);
}

.step summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

.step summary::-webkit-details-marker {
  display: none;
}

.step summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.step__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--green);
}

.step__title {
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: .01em;
}

.step__body {
  padding: 0 18px 18px;
}

.step__body p {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */

.prod-close {
  margin-top: clamp(44px, 6vw, 76px);
  padding-top: clamp(26px, 3.4vw, 40px);
  border-top: var(--pp-hair);
  display: grid;
  gap: 20px;
}

.prod-close p {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.prod-close__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .prod-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .spec-list li {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .skill {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }

  .skill__tree {
    position: sticky;
    top: 96px;
  }

  .prod-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .scenario {
    grid-template-columns: 62px minmax(0, .85fr) minmax(0, 1.5fr);
    align-items: start;
    gap: 22px;
  }

  .scenario__body p:last-child {
    margin-bottom: 0;
  }

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

@media (min-width: 1180px) {
  .skill {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 46px;
  }

  .prod-hero {
    gap: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .prod-tabs .tabs__tab,
  .step {
    transition: none;
  }
}
<<<END>>>