.page-products {
  --pp-strip: rgba(15, 27, 46, 0.72);
  --pp-glow: rgba(63, 224, 208, 0.12);
}

/* ---------- 首屏 ---------- */
.page-products .hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--hair);
  background:
    radial-gradient(760px 420px at 88% 4%, rgba(63, 224, 208, 0.12), transparent 62%),
    radial-gradient(620px 380px at 2% 96%, rgba(244, 178, 63, 0.08), transparent 68%),
    var(--ink);
}

.page-products .hero-inner {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: calc(var(--header-h) + 28px) var(--gap) 48px;
  display: grid;
  gap: 36px;
}

.page-products .hero-copy .breadcrumb {
  margin-bottom: 22px;
}

.page-products .hero-title {
  font-size: clamp(26px, 4.2vw, 48px);
  margin: 12px 0 18px;
}

.page-products .hero-lead {
  max-width: 40em;
  margin: 0 0 26px;
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.page-products .hero-meta {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--hair);
}

.page-products .hero-meta > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .hero-meta dt {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-products .hero-meta dd {
  margin: 0;
  font-size: 15px;
  color: var(--text);
}

.page-products .hero-meta dd.data-num {
  color: var(--amber);
  font-size: 17px;
  letter-spacing: 0.04em;
}

/* ---------- 技能树 ---------- */
.page-products .hero-tree {
  position: relative;
  display: grid;
  gap: 10px;
}

.page-products .tree-lines {
  display: none;
}

.page-products .tree-node {
  display: block;
  padding: 13px 15px;
  border: 1px solid var(--hair);
  background: var(--pp-strip);
  text-decoration: none;
  border-radius: 2px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease);
}

.page-products .tree-node:hover,
.page-products .tree-node:focus-visible {
  border-color: var(--cyan);
  background: rgba(63, 224, 208, 0.09);
  transform: translateY(-2px);
}

.page-products .tree-label {
  display: block;
  font-family: var(--font-cond);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--text);
}

.page-products .tree-sub {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .tree-node--root {
  background: var(--paper);
  border-color: var(--paper);
}

.page-products .tree-node--root .tree-label {
  color: var(--ink);
}

.page-products .tree-node--root .tree-sub {
  color: #3b4a5f;
}

.page-products .tree-node--root:hover,
.page-products .tree-node--root:focus-visible {
  border-color: var(--cyan);
  background: var(--paper);
}

/* ---------- 通用章节 ---------- */
.page-products .section {
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-products .section--panel {
  background: linear-gradient(180deg, rgba(15, 27, 46, 0.92), rgba(8, 17, 31, 0.4));
}

.page-products .section-head {
  max-width: 62em;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-products .section-head-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 10px 0 14px;
}

.page-products .section-head-note {
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 36em;
  margin: 0;
}

.page-products .figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border: 1px solid var(--hair);
  background: var(--panel);
}

.page-products .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 入口路径 ---------- */
.page-products .entry-grid {
  display: grid;
  gap: 30px;
}

.page-products .entry-visual .figure {
  margin: 0;
}

.page-products .path-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: step;
}

.page-products .path-step {
  position: relative;
  padding: 20px 20px 20px 22px;
  border-left: 2px solid var(--hair);
  background: var(--pp-strip);
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .path-step:hover {
  border-left-color: var(--cyan);
  background: rgba(63, 224, 208, 0.06);
}

.page-products .step-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-products .path-step h3 {
  font-family: var(--font-cond);
  font-size: 17px;
  letter-spacing: 0.03em;
  color: var(--text);
  margin: 0 0 8px;
}

.page-products .path-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 大屏工作区 ---------- */
.page-products .screen-specs {
  margin-top: 28px;
}

.page-products .screen-specs .panel-title {
  font-size: 17px;
}

.page-products .tabs + .spec-list,
.page-products .screen-specs + .spec-list {
  margin-top: 26px;
}

.page-products .spec-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-products .spec-list li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-products .spec-key {
  font-family: var(--font-cond);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan-soft);
}

.page-products .spec-val {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 回看窗口 ---------- */
.page-products .window-tabs {
  margin-top: 8px;
}

.page-products .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--hair);
}

.page-products .tab {
  font-family: var(--font-cond);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--hair);
  border-radius: 2px;
  padding: 9px 20px;
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .tab:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan);
}

.page-products .tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products .tabpanel {
  display: grid;
  gap: 20px;
  padding: 24px 0 0;
  border-bottom: 1px dashed rgba(34, 52, 79, 0.7);
}

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

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

.page-products .window-copy h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin: 0 0 10px;
}

.page-products .window-copy p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .window-hint {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

.page-products .window-plot {
  border: 1px solid var(--hair);
  background:
    linear-gradient(rgba(34, 52, 79, 0.5) 1px, transparent 1px) 0 0 / 100% 40px,
    linear-gradient(90deg, rgba(34, 52, 79, 0.35) 1px, transparent 1px) 0 0 / 40px 100%,
    var(--panel);
  padding: 10px;
}

.page-products .window-plot svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .window-plot polyline {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}

/* ---------- 同步 ---------- */
.page-products .sync-grid {
  align-items: start;
}

.page-products .sync-grid .figure {
  margin: 0;
}

.page-products .sync-steps {
  margin: 0 0 18px;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}

.page-products .sync-steps li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-products .sync-steps li::marker {
  color: var(--cyan);
  font-family: var(--font-mono);
}

.page-products .sync-note {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .sync-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-products .sync-facts li {
  background: var(--ink);
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}

.page-products .fact-num {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--amber);
  letter-spacing: 0.02em;
}

.page-products .fact-lab {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* ---------- 文档 ---------- */
.page-products .docs-grid {
  display: grid;
  gap: 32px;
}

.page-products .doc-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .doc-groups {
  border-top: 1px solid var(--hair);
}

.page-products .doc-group {
  border-bottom: 1px solid var(--hair);
}

.page-products .doc-group summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 2px;
  font-family: var(--font-cond);
  font-size: 16px;
  letter-spacing: 0.05em;
  color: var(--text);
  transition: color 180ms var(--ease), padding 180ms var(--ease);
}

.page-products .doc-group summary::-webkit-details-marker {
  display: none;
}

.page-products .doc-group summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  width: 14px;
  flex: none;
}

.page-products .doc-group[open] summary::before {
  content: "–";
}

.page-products .doc-group summary:hover {
  color: var(--cyan-soft);
  padding-left: 6px;
}

.page-products .doc-group[open] summary {
  color: var(--cyan-soft);
}

.page-products .doc-body {
  padding: 0 0 18px 26px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .doc-note {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  padding-left: 16px;
  border-left: 2px solid var(--amber);
}

.page-products .docs-figure {
  margin: 0;
}

/* ---------- 三端长条 ---------- */
.page-products .device-strips {
  display: grid;
  gap: 0;
}

.page-products .device-strip {
  display: grid;
  gap: 10px;
  padding: 20px 20px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--hair);
  background: var(--pp-strip);
  margin-top: -1px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease);
}

.page-products .device-strip:first-child {
  margin-top: 0;
}

.page-products .device-strip:hover,
.page-products .device-strip:focus-within,
.page-products .device-strip:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(63, 224, 208, 0.07);
  transform: translateX(4px);
  outline: none;
}

.page-products .device-tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  border: 1px solid currentColor;
  border-radius: 2px;
  padding: 3px 8px;
  height: fit-content;
}

.page-products .device-tag--amber {
  color: var(--amber);
}

.page-products .device-body h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}

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

.page-products .device-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 5px;
}

.page-products .device-meta li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-products .devices-figure {
  margin: 32px 0 0;
}

/* ---------- 路线图 ---------- */
.page-products .road-grid {
  display: grid;
  gap: 24px;
}

.page-products .road-grid .panel--shift {
  margin: 0;
}

.page-products .road-note {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 40em;
}

.page-products .road-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, 0.45);
}

.page-products .road-note a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 收尾 ---------- */
.page-products .outro {
  background:
    radial-gradient(600px 300px at 12% 0%, rgba(63, 224, 208, 0.1), transparent 70%),
    var(--ink);
  border-bottom: 0;
}

.page-products .outro-inner {
  display: grid;
  gap: 26px;
}

.page-products .outro-copy h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.28;
  color: var(--text);
  margin: 10px 0 14px;
}

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

.page-products .outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-products .entry-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 40px;
  }

  .page-products .sync-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .road-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

  .page-products .road-grid .panel--shift:nth-child(2) {
    transform: translateY(24px);
  }

  .page-products .spec-list li {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-products .outro-inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
    gap: 40px;
  }

  .page-products .outro-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 900px) {
  .page-products .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    align-items: center;
    gap: 52px;
    padding-top: calc(var(--header-h) + 64px);
    padding-bottom: 80px;
  }

  .page-products .hero-tree {
    aspect-ratio: 5 / 4;
    display: block;
  }

  .page-products .tree-lines {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .page-products .tree-lines path {
    fill: none;
    stroke: var(--hair);
    stroke-width: 1.5;
    transition: stroke 180ms var(--ease);
  }

  .page-products .hero-tree:hover .tree-lines path {
    stroke: var(--cyan);
  }

  .page-products .tree-node {
    position: absolute;
    backdrop-filter: blur(2px);
  }

  .page-products .tree-node--root {
    left: 0;
    top: 50%;
    width: 23%;
    transform: translateY(-50%);
  }

  .page-products .tree-node--root:hover,
  .page-products .tree-node--root:focus-visible {
    transform: translateY(-52%);
  }

  .page-products .tree-node--a,
  .page-products .tree-node--b,
  .page-products .tree-node--c {
    left: 65%;
    width: 35%;
  }

  .page-products .tree-node--a {
    top: 19%;
    transform: translateY(-50%);
  }

  .page-products .tree-node--b {
    top: 50%;
    transform: translateY(-50%);
  }

  .page-products .tree-node--c {
    top: 81%;
    transform: translateY(-50%);
  }

  .page-products .tree-node--a:hover,
  .page-products .tree-node--a:focus-visible {
    transform: translateY(-56%);
  }

  .page-products .tree-node--b:hover,
  .page-products .tree-node--b:focus-visible {
    transform: translateY(-56%);
  }

  .page-products .tree-node--c:hover,
  .page-products .tree-node--c:focus-visible {
    transform: translateY(-56%);
  }

  .page-products .tabpanel {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
    gap: 32px;
    align-items: center;
    padding: 28px 0;
  }

  .page-products .docs-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-products .device-strip {
    grid-template-columns: 108px minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: center;
    gap: 26px;
    padding: 22px 24px;
  }

  .page-products .device-meta {
    padding-left: 24px;
    border-left: 1px solid var(--hair);
  }
}

@media (min-width: 1180px) {
  .page-products .entry-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
  }

  .page-products .sync-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tree-node,
  .page-products .device-strip,
  .page-products .path-step,
  .page-products .doc-group summary,
  .page-products .tab {
    transition: none;
  }

  .page-products .tree-node:hover,
  .page-products .tree-node:focus-visible,
  .page-products .device-strip:hover,
  .page-products .device-strip:focus-within,
  .page-products .device-strip:focus-visible,
  .page-products .doc-group summary:hover {
    transform: none;
    padding-left: 2px;
  }
}