.page-products {
  --pp-rail-w: 268px;
  --pp-shadow: 0 22px 48px -30px rgba(0, 0, 0, .92);
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--stone);
  font-family: var(--font-mono);
}

.page-products .breadcrumb a {
  color: var(--stone);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-products .breadcrumb a:hover {
  color: var(--gold-pale);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(22px, 3.6vw, 42px) 0 clamp(26px, 4vw, 48px);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: clamp(26px, 4vw, 52px);
}

.page-products .prod-hero__title {
  margin: 10px 0 0;
  font-size: clamp(28px, 5vw, 52px);
  line-height: 1.14;
  letter-spacing: -.015em;
  font-weight: 800;
  color: var(--paper);
}

.page-products .prod-hero__title::after {
  content: "";
  display: block;
  width: 88px;
  height: 3px;
  margin-top: 18px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(227, 178, 60, 0));
}

.page-products .prod-hero__lede {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(242, 234, 217, .82);
}

.page-products .prod-hero__side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-products .prod-hero__badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(25, 28, 36, .74);
  font-size: 13px;
  line-height: 1.5;
  color: var(--gold-pale);
}

.page-products .prod-hero__side-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 主体骨架 ---------- */
.page-products .prod-shell {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

/* ---------- 左侧功能索引 ---------- */
.page-products .prod-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(25, 28, 36, .92), rgba(18, 20, 26, .92));
}

.page-products .prod-rail__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-products .prod-rail__nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-products .index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  color: var(--stone);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .index-link:hover {
  color: var(--paper);
  background: rgba(138, 143, 152, .09);
}

.page-products .index-link.is-active {
  color: var(--gold-pale);
  border-left-color: var(--gold);
  background: rgba(227, 178, 60, .07);
}

.page-products .index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-products .prod-rail__status {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-products .prod-rail__status p {
  margin: 0;
  font-size: 12px;
  color: var(--stone);
}

/* ---------- 章节 ---------- */
.page-products .prod-sec {
  padding: clamp(30px, 4.4vw, 58px) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 96px;
}

.page-products .prod-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px 24px;
  margin-bottom: 20px;
}

.page-products .section-title {
  margin: 6px 0 0;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.22;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--paper);
}

.page-products .prod-sec__aside {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--stone);
  white-space: nowrap;
}

.page-products .prod-lede {
  margin: 0 0 22px;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(242, 234, 217, .8);
}

.page-products .prod-copy p {
  margin: 0 0 14px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 234, 217, .8);
}

.page-products .prod-copy p:last-child {
  margin-bottom: 0;
}

.page-products .prod-cols {
  display: grid;
  gap: 24px;
}

/* ---------- 数字看板 ---------- */
.page-products .prod-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--line-soft);
}

.page-products .prod-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--ink-raised);
}

.page-products .stat-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-products .stat-label {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--stone);
}

/* ---------- 卡片 ---------- */
.page-products .prod-grid-2 {
  display: grid;
  gap: 16px;
}

.page-products .prod-card {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(25, 28, 36, .96), rgba(18, 20, 26, .96));
}

.page-products .prod-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  border-top: 1px solid var(--gold);
  border-right: 1px solid var(--gold);
  opacity: .55;
}

.page-products .prod-card__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-products .prod-card h3 {
  margin: 10px 0 14px;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-products .prod-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.page-products .prod-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(242, 234, 217, .78);
}

.page-products .prod-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 图片 ---------- */
.page-products .prod-figure {
  margin: 26px 0 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(25, 28, 36, .9), rgba(12, 14, 19, .9));
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  background: var(--ink-deep);
}

.page-products .prod-figure--wide img {
  aspect-ratio: 3 / 2;
}

.page-products .prod-figure--band img {
  aspect-ratio: 2 / 1;
}

.page-products .prod-figure--card img {
  aspect-ratio: 9 / 7;
}

.page-products .media-caption {
  margin: 10px 2px 2px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 分段切换 ---------- */
.page-products .prod-tabs {
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(25, 28, 36, .62);
}

.page-products .prod-tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-products .tab {
  appearance: none;
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  color: var(--stone);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .tab:hover {
  color: var(--paper);
  border-color: var(--gold);
}

.page-products .tab[aria-selected="true"] {
  color: var(--ink);
  font-weight: 700;
  border-color: var(--gold);
  background: linear-gradient(180deg, var(--gold-pale), var(--gold));
}

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

.page-products .prod-tab-panel {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 234, 217, .82);
}

.page-products .prod-tab-panel p {
  margin: 0 0 12px;
  max-width: 42em;
}

.page-products .prod-tab-panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 签表树 ---------- */
.page-products .prod-bracket {
  margin: 24px 0 0;
  padding: 18px 14px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: radial-gradient(120% 120% at 20% 0%, rgba(94, 107, 74, .16), rgba(18, 20, 26, .9));
}

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

.page-products .bracket-node {
  fill: var(--ink-raised);
  stroke: var(--line);
  stroke-width: 1;
  transition: fill .25s var(--ease), stroke .25s var(--ease);
}

.page-products .bracket-node--final {
  stroke: var(--gold);
}

.page-products .bracket-line {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
  transition: stroke .25s var(--ease);
}

.page-products .bracket-text {
  fill: var(--stone);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .04em;
  transition: fill .25s var(--ease);
}

.page-products .bracket-round:hover .bracket-node {
  fill: rgba(94, 107, 74, .55);
  stroke: var(--gold);
}

.page-products .bracket-round:hover .bracket-line {
  stroke: var(--gold);
}

.page-products .bracket-round:hover .bracket-text {
  fill: var(--paper);
}

.page-products .bracket-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--stone);
}

/* ---------- 收藏面板示意 ---------- */
.page-products .fav-drawer {
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(25, 28, 36, .96), rgba(12, 14, 19, .96));
}

.page-products .fav-drawer__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  font-size: 14px;
  color: var(--gold-pale);
  cursor: pointer;
  list-style: none;
}

.page-products .fav-drawer__summary::-webkit-details-marker {
  display: none;
}

.page-products .fav-drawer__summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--gold);
}

.page-products .fav-drawer[open] .fav-drawer__summary::before {
  content: "–";
}

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

.page-products .fav-list {
  margin: 0;
  padding: 0 18px 18px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.page-products .fav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 10px;
  border-left: 2px solid transparent;
  background: rgba(138, 143, 152, .06);
  font-size: 14px;
  color: rgba(242, 234, 217, .86);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .fav-item:hover {
  border-left-color: var(--gold);
  background: rgba(227, 178, 60, .09);
}

.page-products .fav-slot {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-products .fav-name {
  flex: 1 1 auto;
}

/* ---------- 双端安装 ---------- */
.page-products .prod-install__col {
  padding: 24px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(25, 28, 36, .96), rgba(18, 20, 26, .96));
}

.page-products .prod-install__col h3 {
  margin: 14px 0 16px;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-products .prod-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: pp-step;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-products .prod-steps li {
  counter-increment: pp-step;
  position: relative;
  padding-left: 40px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 234, 217, .78);
}

.page-products .prod-steps li::before {
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
}

.page-products .prod-steps a,
.page-products .prod-tail a,
.page-products .prod-note a {
  color: var(--gold-pale);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .2s var(--ease);
}

.page-products .prod-steps a:hover,
.page-products .prod-tail a:hover,
.page-products .prod-note a:hover {
  color: var(--gold);
}

.page-products .prod-note {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(227, 178, 60, .07);
  font-size: 14px;
  line-height: 1.85;
  color: rgba(242, 234, 217, .82);
}

/* ---------- 场景 ---------- */
.page-products .prod-scenes {
  display: grid;
  gap: 14px;
}

.page-products .prod-scene {
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--clay);
  border-radius: var(--radius);
  background: rgba(25, 28, 36, .72);
  transition: transform .3s var(--ease), border-top-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-products .prod-scene:hover {
  transform: translateY(-4px);
  border-top-color: var(--gold);
  box-shadow: var(--pp-shadow);
}

.page-products .prod-scene h3 {
  margin: 10px 0 10px;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-products .prod-scene p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 234, 217, .76);
}

/* ---------- 结尾指引 ---------- */
.page-products .prod-tail {
  margin-top: clamp(24px, 4vw, 44px);
  padding: 20px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(110, 31, 26, .3), rgba(18, 20, 26, .68));
  font-size: 14px;
  line-height: 1.9;
  color: rgba(242, 234, 217, .84);
}

.page-products .prod-tail p {
  margin: 0;
}

/* ---------- 窄屏 ---------- */
@media (max-width: 1023px) {
  .page-products .prod-rail__nav {
    flex-direction: row;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }

  .page-products .index-link {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 7px 12px;
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .page-products .index-link.is-active {
    border-left-color: transparent;
    border-bottom-color: var(--gold);
  }
}

@media (max-width: 640px) {
  .page-products .prod-hero__title {
    font-size: 27px;
  }

  .page-products .prod-hero__title::after {
    margin-top: 14px;
  }

  .page-products .prod-tabs {
    padding: 14px;
  }

  .page-products .prod-steps li {
    padding-left: 34px;
  }

  .page-products .prod-bracket {
    padding: 14px 8px 10px;
  }

  .page-products .bracket-legend {
    gap: 8px;
    letter-spacing: .06em;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 860px) {
  .page-products .prod-cols {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }

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

@media (min-width: 900px) {
  .page-products .prod-hero {
    grid-template-columns: minmax(0, 1fr) 306px;
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-products .prod-shell {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .prod-rail {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1080px) {
  .page-products .prod-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .prod-scene,
  .page-products .index-link,
  .page-products .tab,
  .page-products .fav-item,
  .page-products .bracket-node,
  .page-products .bracket-line,
  .page-products .bracket-text {
    transition: none;
  }

  .page-products .prod-scene:hover {
    transform: none;
  }
}