.page-products {
  --pd-gap: clamp(24px, 4vw, 56px);
  --pd-node: 14px;
  display: block;
}

.page-products .yb-breadcrumb {
  margin-top: 20px;
}

/* 首屏 */
.page-products .pd-open {
  padding-top: 40px;
}

.page-products .pd-open__grid {
  display: grid;
  gap: 32px;
}

.page-products .pd-title {
  margin: 14px 0 20px;
  font-family: var(--yb-font-sans);
  font-size: clamp(38px, 9vw, 84px);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--yb-paper);
}

.page-products .pd-open__lede {
  max-width: 42ch;
  color: var(--yb-steel);
}

.page-products .pd-open__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .pd-open__media {
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-rb);
  overflow: hidden;
}

.page-products .pd-open__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 992px) {
  .page-products .pd-open__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
    gap: var(--pd-gap);
  }
}

/* 通用小节头 */
.page-products .pd-section-head {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

.page-products .pd-section-head__note {
  max-width: 58ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-mute);
}

.page-products .pd-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-steel);
}

.page-products .pd-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--yb-signal);
}

/* 通道 */
.page-products .pd-channels__grid {
  display: grid;
  gap: 28px;
}

@media (min-width: 992px) {
  .page-products .pd-channels__grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--pd-gap);
  }
}

.page-products .pd-switch {
  position: relative;
}

.page-products .pd-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .pd-switch__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--yb-line-soft);
}

.page-products .pd-switch__tab {
  padding: 8px 16px;
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-lt);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--yb-mute);
  cursor: pointer;
  transition: color 0.16s var(--yb-ease), background-color 0.16s var(--yb-ease), border-color 0.16s var(--yb-ease);
}

.page-products .pd-switch__tab:hover {
  color: var(--yb-paper);
  border-color: var(--yb-line);
}

.page-products #pd-plat-ios:checked ~ .pd-switch__tabs .pd-switch__tab[for="pd-plat-ios"],
.page-products #pd-plat-android:checked ~ .pd-switch__tabs .pd-switch__tab[for="pd-plat-android"] {
  color: var(--yb-deep);
  background: var(--yb-signal);
  border-color: var(--yb-signal);
}

.page-products #pd-plat-ios:focus-visible ~ .pd-switch__tabs .pd-switch__tab[for="pd-plat-ios"],
.page-products #pd-plat-android:focus-visible ~ .pd-switch__tabs .pd-switch__tab[for="pd-plat-android"] {
  outline: 1px solid var(--yb-signal);
  outline-offset: 2px;
}

.page-products .pd-switch__panel {
  display: none;
  padding-top: 22px;
}

.page-products .pd-switch__panel h3 {
  margin: 0 0 10px;
  color: var(--yb-paper);
}

.page-products .pd-switch__panel p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--yb-steel);
}

.page-products #pd-plat-ios:checked ~ .pd-switch__panels .pd-switch__panel--ios,
.page-products #pd-plat-android:checked ~ .pd-switch__panels .pd-switch__panel--android {
  display: block;
}

.page-products .pd-order {
  padding: 26px 22px;
  background: var(--yb-room);
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-lt);
}

.page-products .pd-order h3 {
  margin: 0;
  color: var(--yb-paper);
}

.page-products .pd-order__list {
  display: grid;
  gap: 20px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-order__list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
}

.page-products .pd-order__no {
  font-size: 22px;
  line-height: 1.2;
  color: var(--yb-signal);
}

.page-products .pd-order__list strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--yb-paper);
}

.page-products .pd-order__list p {
  margin: 4px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--yb-steel);
}

/* 版本轨道 + 主体 */
.page-products .pd-track {
  position: relative;
  overflow: hidden;
}

.page-products .pd-track__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.26;
  pointer-events: none;
}

.page-products .pd-track__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .pd-track .yb-wrap {
  position: relative;
  z-index: 1;
}

.page-products .pd-track__grid {
  display: grid;
  gap: 44px;
}

@media (min-width: 992px) {
  .page-products .pd-track__grid {
    grid-template-columns: 4fr 8fr;
    gap: var(--pd-gap);
    align-items: start;
  }
}

.page-products .pd-rail__title {
  margin: 0;
  color: var(--yb-paper);
}

.page-products .pd-rail__meta {
  display: block;
  margin: 10px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--yb-signal);
}

.page-products .pd-rail__list {
  position: relative;
  display: grid;
  gap: 28px;
  margin: 28px 0 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-products .pd-rail__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--yb-signal), rgba(255, 107, 53, 0.65));
}

.page-products .pd-rail__item {
  position: relative;
  display: grid;
  gap: 4px;
}

.page-products .pd-rail__item:focus-visible {
  outline: 1px solid var(--yb-signal);
  outline-offset: 6px;
}

.page-products .pd-rail__node {
  position: absolute;
  left: -26px;
  top: 5px;
  width: var(--pd-node);
  height: var(--pd-node);
  background: var(--yb-room);
  border: 1px solid var(--yb-signal);
  clip-path: polygon(4px 0, 100% 0, 100% 100%, 0 100%, 0 4px);
}

.page-products .pd-rail__ver {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--yb-signal);
}

.page-products .pd-rail__name {
  font-size: 17px;
  color: var(--yb-paper);
}

.page-products .pd-rail__note {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--yb-mute);
}

@media (hover: hover) and (min-width: 992px) {
  .page-products .pd-rail__note {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.2s var(--yb-ease), opacity 0.2s var(--yb-ease);
  }
  .page-products .pd-rail__item:hover .pd-rail__note,
  .page-products .pd-rail__item:focus-visible .pd-rail__note,
  .page-products .pd-rail__item:focus-within .pd-rail__note {
    max-height: 12em;
    opacity: 1;
  }
}

.page-products .pd-rail__foot {
  margin-top: 30px;
}

/* 安装步骤 */
.page-products .pd-install__lede {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-steel);
}

.page-products .pd-install__steps {
  display: grid;
  gap: 20px;
  margin-top: 26px;
}

.page-products .pd-step {
  padding: 24px 22px;
  background: var(--yb-room);
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-lt);
}

.page-products .pd-step--b {
  clip-path: var(--yb-cut-rb);
}

.page-products .pd-step--c {
  background: rgba(7, 18, 39, 0.78);
}

.page-products .pd-step__no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--yb-ember);
}

.page-products .pd-step__title {
  margin: 10px 0 8px;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.2;
  color: var(--yb-paper);
}

.page-products .pd-step p {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--yb-steel);
}

.page-products .pd-step p:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .page-products .pd-install__steps {
    grid-template-columns: repeat(12, 1fr);
  }
  .page-products .pd-step--a {
    grid-column: span 7;
  }
  .page-products .pd-step--b {
    grid-column: span 5;
  }
  .page-products .pd-step--c {
    grid-column: span 12;
  }
}

/* 模块开关 */
.page-products .pd-modules {
  margin-top: 56px;
}

.page-products .pd-modules__lede {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-steel);
}

.page-products .pd-modules__grid {
  display: grid;
  gap: 28px;
  margin-top: 24px;
}

@media (min-width: 768px) {
  .page-products .pd-modules__grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
  }
}

.page-products .pd-modules__figures {
  display: grid;
  gap: 16px;
}

.page-products .pd-fig {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-lt);
}

.page-products .pd-fig--tall {
  aspect-ratio: 3 / 4;
  max-height: 400px;
}

.page-products .pd-fig--wide {
  aspect-ratio: 3 / 2;
}

.page-products .pd-fig img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .pd-toggle {
  position: relative;
  padding: 16px 0;
  border-bottom: 1px solid var(--yb-line-faint);
}

.page-products .pd-toggle:first-child {
  padding-top: 0;
}

.page-products .pd-toggle__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-products .pd-toggle__label {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  align-items: start;
  cursor: pointer;
}

.page-products .pd-toggle__track {
  position: relative;
  display: block;
  width: 46px;
  height: 26px;
  background: var(--yb-abyss);
  border: 1px solid var(--yb-line);
  transition: background-color 0.16s var(--yb-ease), border-color 0.16s var(--yb-ease);
}

.page-products .pd-toggle__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--yb-mute);
  clip-path: polygon(4px 0, 100% 0, 100% 100%, 0 100%, 0 4px);
  transition: transform 0.16s var(--yb-ease), background-color 0.16s var(--yb-ease);
}

.page-products .pd-toggle__input:checked ~ .pd-toggle__label .pd-toggle__track {
  background: rgba(31, 224, 200, 0.14);
  border-color: var(--yb-signal);
}

.page-products .pd-toggle__input:checked ~ .pd-toggle__label .pd-toggle__knob {
  transform: translateX(20px);
  background: var(--yb-signal);
}

.page-products .pd-toggle__input:focus-visible ~ .pd-toggle__label .pd-toggle__track {
  outline: 1px solid var(--yb-signal);
  outline-offset: 2px;
}

.page-products .pd-toggle__text {
  display: grid;
  gap: 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-steel);
}

.page-products .pd-toggle__text strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--yb-paper);
}

.page-products .pd-toggle__text a {
  color: var(--yb-signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pd-modules__hint {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yb-mute);
}

/* 加载与省流 */
.page-products .pd-perf__hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 32px;
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-rb);
}

.page-products .pd-perf__hero img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 240px;
  max-height: 400px;
  object-fit: cover;
}

.page-products .pd-perf__hero-body {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 28px 22px 22px;
  background: linear-gradient(180deg, rgba(7, 18, 39, 0) 0%, rgba(7, 18, 39, 0.9) 68%);
}

.page-products .pd-perf__hero-body h2 {
  margin: 0 0 10px;
  color: var(--yb-paper);
}

.page-products .pd-perf__hero-body p {
  max-width: 58ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--yb-steel);
}

.page-products .pd-perf__grid {
  display: grid;
  gap: 20px;
}

.page-products .pd-perf__item {
  padding: 22px 20px;
  background: rgba(16, 41, 76, 0.72);
  border: 1px solid var(--yb-line-soft);
  clip-path: var(--yb-cut-lt);
}

.page-products .pd-perf__no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--yb-signal);
}

.page-products .pd-perf__title {
  margin: 10px 0 8px;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.25;
  color: var(--yb-paper);
}

.page-products .pd-perf__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--yb-steel);
}

@media (min-width: 768px) {
  .page-products .pd-perf__grid {
    grid-template-columns: 5fr 4fr 3fr;
  }
}

/* 常见问题 */
.page-products .pd-issues__list {
  display: grid;
  gap: 0;
}

.page-products .pd-issue {
  padding: 18px 0;
  border-top: 1px solid var(--yb-line-soft);
}

.page-products .pd-issue:last-child {
  border-bottom: 1px solid var(--yb-line-soft);
}

.page-products .pd-issue summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--yb-paper);
  list-style: none;
  cursor: pointer;
}

.page-products .pd-issue summary::-webkit-details-marker {
  display: none;
}

.page-products .pd-issue summary::after {
  content: "＋";
  flex: none;
  font-family: var(--yb-font-mono);
  color: var(--yb-signal);
}

.page-products .pd-issue[open] summary::after {
  content: "－";
}

.page-products .pd-issue summary:focus-visible {
  outline: 1px solid var(--yb-signal);
  outline-offset: 3px;
}

.page-products .pd-issue p {
  max-width: 64ch;
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yb-steel);
}

.page-products .pd-issue p a,
.page-products .pd-issues__more a {
  color: var(--yb-signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pd-issues__more {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yb-mute);
}

/* 横向构建带 */
.page-products .pd-band__head {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.page-products .pd-band__head p {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-mute);
}

.page-products .pd-band__scroll {
  overflow-x: auto;
  padding: 22px var(--yb-gutter) 26px;
  background: rgba(7, 18, 39, 0.66);
  border-top: 1px solid var(--yb-line-soft);
  border-bottom: 1px solid var(--yb-line-soft);
}

.page-products .pd-band__scroll:focus-visible {
  outline: 1px solid var(--yb-signal);
  outline-offset: -2px;
}

.page-products .pd-band__scale {
  display: flex;
  gap: 6px;
  min-width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-band__scale li {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  font-size: 12px;
  color: var(--yb-mute);
  border: 1px solid var(--yb-line-faint);
  transition: color 0.16s var(--yb-ease), border-color 0.16s var(--yb-ease);
}

.page-products .pd-band__scale li:hover {
  color: var(--yb-paper);
  border-color: var(--yb-signal);
}

.page-products .pd-band__foot {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-steel);
}

.page-products .pd-band__foot .yb-mono {
  color: var(--yb-signal);
}

/* 窄屏收敛 */
@media (max-width: 480px) {
  .page-products .pd-open__actions {
    flex-direction: column;
    align-items: stretch;
  }
  .page-products .pd-open__actions .yb-btn {
    text-align: center;
  }
  .page-products .pd-band__scale li {
    width: 38px;
    height: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-switch__tab,
  .page-products .pd-toggle__track,
  .page-products .pd-toggle__knob,
  .page-products .pd-rail__note,
  .page-products .pd-band__scale li {
    transition: none;
  }
}