.page-products {
  --prod-rail: 260px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products .wrap {
  max-width: var(--w-max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.page-products .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .crumbs a {
  color: var(--teal);
  text-decoration: none;
}

.page-products .crumbs a:hover,
.page-products .crumbs a:focus-visible {
  color: var(--cyan);
}

.page-products .crumbs span[aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-products .spec-hero {
  position: relative;
  padding: 28px 0 0;
  border-bottom: 1px solid var(--grid-line);
  overflow: hidden;
}

.page-products .spec-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .5;
  -webkit-mask-image: radial-gradient(120% 80% at 78% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 80% at 78% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-products .spec-hero-grid {
  position: relative;
  display: grid;
  gap: 24px;
  padding-bottom: 28px;
}

.page-products .spec-hero-copy .eyebrow {
  color: var(--cyan);
  margin: 0 0 12px;
}

.page-products .spec-hero-copy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-products .spec-hero-copy .lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-products .spec-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .spec-status {
  border: 1px solid var(--glass-edge);
  background: var(--glass-fill);
  padding: 18px;
  align-self: start;
}

.page-products .status-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .status-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-products .status-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(28, 74, 61, .55);
}

.page-products .status-row:last-child {
  border-bottom: 0;
}

.page-products .status-row dt {
  font-size: 13px;
  color: var(--mist);
}

.page-products .status-row dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper);
}

.page-products .status-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(28, 74, 61, .55);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

/* ---------- 分段导航 ---------- */
.page-products .spec-seg {
  position: relative;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border-top: 1px solid var(--grid-line);
  scrollbar-width: none;
}

.page-products .spec-seg::-webkit-scrollbar {
  display: none;
}

.page-products .seg-link {
  flex: 0 0 auto;
  padding: 14px 14px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .seg-link:hover,
.page-products .seg-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}

/* ---------- 主布局 ---------- */
.page-products .spec-layout {
  display: grid;
  gap: 32px;
  padding: 36px 0 56px;
}

.page-products .spec-rail {
  min-width: 0;
}

.page-products .spec-rail-card {
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--glass-edge);
  background: var(--glass-fill);
}

.page-products .spec-rail-card .eyebrow {
  margin: 0;
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: .2em;
}

.page-products .spec-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--paper);
  word-break: break-all;
}

.page-products .spec-rail-card .copy-btn {
  justify-self: start;
}

.page-products .spec-rail-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .spec-rail-links {
  display: grid;
  gap: 2px;
  margin-top: 18px;
}

.page-products .spec-rail-links a {
  display: block;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--teal);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-products .spec-rail-links a:hover,
.page-products .spec-rail-links a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(0, 240, 200, .06);
  outline: none;
}

.page-products .spec-main {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-products .spec-sec {
  margin-bottom: 56px;
  scroll-margin-top: 72px;
}

.page-products .spec-sec:last-of-type {
  margin-bottom: 40px;
}

.page-products .sec-head {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.page-products .sec-no {
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .spec-sec h2,
.page-products .spec-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.4vw, 32px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.005em;
  color: var(--paper);
}

.page-products .spec-sec .sec-head p,
.page-products .spec-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 68ch;
}

.page-products .sec-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--grid);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 媒体框 ---------- */
.page-products .media-frame {
  position: relative;
  margin: 0 0 22px;
  border: 1px solid var(--grid-line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-products .media-frame .media-tag {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 5px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
  background: rgba(2, 8, 6, .78);
  border: 1px solid var(--glass-edge);
}

/* ---------- 规格数据条目 ---------- */
.page-products .spec-facts {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-products .spec-facts li {
  display: grid;
  grid-template-columns: minmax(62px, auto) 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--panel);
}

.page-products .spec-facts .mono {
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.2;
  color: var(--cyan);
  white-space: nowrap;
}

.page-products .spec-facts li span:last-child {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 标签墙 ---------- */
.page-products .tag-wall {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 分层列表 ---------- */
.page-products .layer-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .layer-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--grid-line);
  border-left: 2px solid var(--grid);
  background: var(--panel);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .layer-item:hover,
.page-products .layer-item:focus-within {
  border-left-color: var(--cyan);
  background: var(--glass-fill);
}

.page-products .layer-no {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: 2px;
}

.page-products .layer-item h3 {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .layer-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 标签数量对比 ---------- */
.page-products .tag-compare {
  padding: 18px;
  border: 1px solid var(--glass-edge);
  background: var(--glass-fill);
}

.page-products .tag-compare-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .tag-compare-row {
  display: grid;
  grid-template-columns: 42px 1fr 28px;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}

.page-products .tag-compare-row .mono {
  font-size: 12px;
  color: var(--mist);
}

.page-products .tag-compare-row .mono:last-child {
  text-align: right;
  color: var(--paper);
}

.page-products .bar {
  height: 10px;
  display: block;
}

.page-products .bar--old {
  width: 42%;
  background: var(--grid);
}

.page-products .bar--new {
  width: 100%;
  background: linear-gradient(90deg, var(--teal), var(--cyan));
}

/* ---------- 标签页 ---------- */
.page-products .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

.page-products .tab-btn {
  cursor: pointer;
  font-family: var(--font-body);
}

.page-products .tab-btn[aria-selected="true"] {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0, 240, 200, .12);
}

.page-products .tab-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .tab-panel {
  padding-top: 16px;
}

.page-products .tab-panel[hidden] {
  display: none;
}

.page-products .panel-lede {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 64ch;
}

/* ---------- 文档封面墙 ---------- */
.page-products .cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 10px;
}

.page-products .cover-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  min-height: 116px;
  padding: 12px;
  border: 1px solid var(--grid-line);
  background: linear-gradient(160deg, var(--panel) 0%, var(--base) 100%);
  transition: border-color var(--t-fast), transform var(--t-fast);
}

.page-products .cover-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.page-products .cover-rule {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--cyan);
}

.page-products .cover-card h4 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .cover-card p {
  margin: 0;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 版本差异 ---------- */
.page-products .diff-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .diff-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--grid-line);
  background: var(--panel);
  font-size: 14px;
  line-height: 1.6;
}

.page-products .diff-old {
  color: var(--mist);
}

.page-products .diff-arrow {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 13px;
}

.page-products .diff-new {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 场景 ---------- */
.page-products .scene-grid {
  display: grid;
  gap: 10px;
}

.page-products .scene-card {
  padding: 18px;
  border: 1px solid var(--grid-line);
  border-top: 2px solid var(--teal);
  background: linear-gradient(165deg, var(--panel) 0%, var(--base) 100%);
}

.page-products .scene-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-products .scene-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 上手路径 ---------- */
.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .step-item {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--grid-line);
}

.page-products .step-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .step-no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  font-size: 15px;
  color: var(--cyan);
  border: 1px solid var(--grid);
  background: rgba(0, 240, 200, .06);
}

.page-products .step-item h3 {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .step-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */
.page-products .spec-cta {
  display: grid;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--glass-edge);
  background: var(--glass-fill);
}

.page-products .spec-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-products .cover-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  }

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

  .page-products .diff-row {
    grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
  }

  .page-products .diff-arrow {
    text-align: center;
  }
}

@media (min-width: 860px) {
  .page-products .spec-hero-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 36px;
  }

  .page-products .seg-link {
    padding: 16px 18px 14px;
  }

  .page-products .step-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 24px;
  }

  .page-products .step-item:nth-last-child(2) {
    border-bottom: 0;
    padding-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-products .spec-layout {
    grid-template-columns: var(--prod-rail) minmax(0, 1fr);
    gap: 48px;
    padding: 48px 0 72px;
  }

  .page-products .spec-rail .rail-sticky {
    position: sticky;
    top: 88px;
  }

  .page-products .spec-sec {
    scroll-margin-top: 96px;
  }

  .page-products .spec-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
    padding: 28px;
  }

  .page-products .spec-facts li {
    padding: 16px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cover-card,
  .page-products .layer-item,
  .page-products .seg-link,
  .page-products .spec-rail-links a {
    transition: none;
  }

  .page-products .cover-card:hover {
    transform: none;
  }
}