.page-products {
  --pp-gap: clamp(28px, 5vw, 52px);
  --pp-pad: clamp(16px, 3vw, 24px);
  padding-block: clamp(20px, 4vw, 36px) clamp(24px, 5vw, 48px);
  color: var(--paper);
}

.page-products .container {
  min-width: 0;
}

.page-products .breadcrumb {
  margin-bottom: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: clamp(20px, 4vw, 32px);
  padding-bottom: var(--pp-gap);
  border-bottom: 1px solid var(--line);
}

.page-products .pp-hero .eyebrow {
  margin: 0 0 12px;
}

.page-products .pp-hero .page-title {
  margin: 0 0 16px;
  max-width: 15em;
}

.page-products .pp-hero .lede {
  margin: 0;
  max-width: 42em;
  color: rgba(245, 242, 233, 0.78);
}

.page-products .pp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 22px;
}

.page-products .pp-hero-link {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 196, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease);
}

.page-products .pp-hero-link:hover,
.page-products .pp-hero-link:focus-visible {
  border-color: var(--cyan);
}

.page-products .pp-hero-panel {
  position: relative;
  overflow: hidden;
  padding: var(--pp-pad);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
}

.page-products .pp-hero-panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), transparent 72%);
}

.page-products .pp-panel-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .pp-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pp-facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  border-bottom: 1px dashed var(--tick);
}

.page-products .pp-facts li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .pp-facts .num {
  flex: 0 0 auto;
  min-width: 2.6em;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--cyan);
}

/* ---------- 章节骨架 ---------- */
.page-products .section {
  padding-top: var(--pp-gap);
}

.page-products .section-head {
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--tick);
}

.page-products .section-head .section-title {
  margin-block: 8px 0;
}

.page-products .section-desc {
  margin: 10px 0 0;
  max-width: 44em;
  color: var(--muted);
}

/* ---------- 功能卡 ---------- */
.page-products .pp-cards {
  display: grid;
  gap: 14px;
}

.page-products .pp-card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-products .pp-card:hover {
  border-color: rgba(59, 240, 196, 0.4);
}

.page-products .pp-card[open] {
  border-color: rgba(59, 240, 196, 0.55);
  box-shadow: 0 0 0 1px rgba(59, 240, 196, 0.12);
}

.page-products .pp-card-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 5px;
  align-items: center;
  padding: 18px 20px;
  border-radius: var(--r-xl);
  cursor: pointer;
  list-style: none;
  transition: background 0.22s var(--ease), color 0.22s var(--ease);
}

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

.page-products .pp-card-summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .pp-card-num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .pp-card-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .pp-card-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-products .pp-card[open] > .pp-card-summary {
  background: var(--mint);
}

.page-products .pp-card[open] .pp-card-title,
.page-products .pp-card[open] .pp-card-num,
.page-products .pp-card[open] .pp-card-hint {
  color: var(--ink);
}

.page-products .pp-card-body {
  padding: 18px var(--pp-pad) var(--pp-pad);
}

.page-products .pp-card-body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(245, 242, 233, 0.82);
}

.page-products .pp-card-body p:last-of-type {
  margin-bottom: 0;
}

/* ---------- 步骤条 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pp-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(245, 242, 233, 0.82);
}

.page-products .pp-step-num {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  border: 1px solid var(--tick);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 图文分栏 ---------- */
.page-products .pp-split {
  display: grid;
  gap: 22px;
}

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

.page-products .pp-figure {
  margin: 20px 0 0;
}

.page-products .pp-split-media {
  margin: 0;
}

/* ---------- 对照表 ---------- */
.page-products .pp-compare {
  margin-top: 24px;
}

.page-products .pp-compare-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.page-products .pp-switch {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border: 1px solid var(--tick);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--paper);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pp-switch::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 1px solid var(--muted);
  border-radius: 3px;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pp-diff-input:checked ~ .pp-compare-bar .pp-switch {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink);
}

.page-products .pp-diff-input:checked ~ .pp-compare-bar .pp-switch::before {
  background: var(--ink);
  border-color: var(--ink);
}

.page-products .pp-diff-input:focus-visible ~ .pp-compare-bar .pp-switch {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .pp-compare-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-products .pp-diff-input:checked ~ .pp-table-wrap tr[data-same="1"] {
  display: none;
}

.page-products .pp-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-2);
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .pp-table th,
.page-products .pp-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.68;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-table thead th {
  background: var(--tick);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--paper);
}

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

.page-products .pp-table tbody td {
  color: rgba(245, 242, 233, 0.8);
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: rgba(27, 58, 49, 0.45);
}

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

.page-products .pp-tick {
  margin-right: 6px;
  font-weight: 700;
  color: var(--cyan);
}

/* ---------- 资料下载 ---------- */
.page-products .pp-download-lede {
  margin: 0 0 6px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 242, 233, 0.82);
}

.page-products .pp-download {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.page-products .pp-filter {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .pp-filter-row {
  padding-left: 14px;
  border-left: 2px solid var(--tick);
}

.page-products .pp-filter-row:first-child {
  border-left-color: var(--cyan);
}

.page-products .pp-filter-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pp-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border: 1px solid var(--tick);
  border-radius: var(--r-pill);
  font-size: 13px;
  color: rgba(245, 242, 233, 0.78);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-products .pp-chip:hover {
  border-color: var(--muted);
}

.page-products .pp-chip.is-selected {
  border-color: var(--orange);
  background: rgba(255, 122, 51, 0.12);
  color: var(--orange);
}

.page-products .pp-filter-tip {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pp-doc {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-products .pp-doc-item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--paper);
  border-radius: var(--r-lg);
  color: var(--ink);
}

.page-products .pp-doc-type {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #4C6A60;
}

.page-products .pp-doc-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.page-products .pp-doc-meta {
  margin: 0;
  font-size: 13px;
  color: #3A534B;
}

/* ---------- 版本时间线 ---------- */
.page-products .pp-timeline {
  position: relative;
  padding-top: 26px;
}

.page-products .pp-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--tick) 55%, transparent);
}

.page-products .pp-track {
  list-style: none;
  margin: 0;
  padding: 0 0 14px;
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-node {
  flex: 0 0 258px;
  max-width: 82vw;
  scroll-snap-align: start;
  padding: 18px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: border-color 0.22s var(--ease);
}

.page-products .pp-node:hover,
.page-products .pp-node:focus-within {
  border-color: rgba(59, 240, 196, 0.45);
}

.page-products .pp-node-dot {
  display: block;
  width: 9px;
  height: 9px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--tick);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-products .pp-node:hover .pp-node-dot,
.page-products .pp-node:focus-within .pp-node-dot {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(59, 240, 196, 0.14);
}

.page-products .pp-node-ver {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .pp-node-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .pp-node-desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .pp-node-more {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(245, 242, 233, 0.74);
  transition: max-height 0.26s var(--ease), opacity 0.2s var(--ease), margin 0.26s var(--ease);
}

.page-products .pp-node-more li {
  padding-left: 12px;
  border-left: 1px solid var(--tick);
}

.page-products .pp-node:hover .pp-node-more,
.page-products .pp-node:focus-within .pp-node-more {
  max-height: 180px;
  margin-top: 12px;
  opacity: 1;
}

/* ---------- 收尾 ---------- */
.page-products .pp-cta {
  display: grid;
  gap: 14px;
  margin-top: var(--pp-gap);
  padding: clamp(22px, 4vw, 40px);
  background: linear-gradient(140deg, var(--ink-2) 0%, #123A2F 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
}

.page-products .pp-cta-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 26px);
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .pp-cta-desc {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 242, 233, 0.8);
}

.page-products .pp-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-products .pp-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .pp-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-products .pp-download {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (hover: none) {
  .page-products .pp-node-more {
    max-height: none;
    margin-top: 12px;
    opacity: 1;
  }
}