.page-products {
  --pp-line: var(--line);
  --pp-line-soft: var(--line-soft);
  --pp-cyan: var(--cyan);
  --pp-gold: var(--gold);
  --pp-gold-soft: var(--gold-soft);
  --pp-ink: var(--ink-900);
  --pp-ink-2: var(--ink-800);
  --pp-dim: var(--text-dim);
  --pp-radius: 14px;
  --pp-radius-sm: 10px;
  --pp-gap: 20px;
}

.page-products .pp-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- hero ---------- */
.page-products .app-hero {
  padding: 40px 0 56px;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(34, 211, 238, 0.10), transparent 60%),
    radial-gradient(90% 80% at 100% 10%, rgba(212, 175, 55, 0.08), transparent 55%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-products .app-hero__intro {
  max-width: 780px;
  margin-bottom: 36px;
}

.page-products .app-hero__intro h1 {
  margin: 10px 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.22;
  color: var(--text);
}

.page-products .app-hero__intro .lead {
  color: var(--text-dim);
  line-height: 1.75;
}

/* ---------- device deck ---------- */
.page-products .device-deck {
  position: relative;
}

.page-products .device-deck__hint {
  margin: 0 0 14px;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.page-products .device-deck__field {
  margin: 0;
  padding: 0;
  border: 0;
}

.page-products .device-deck__radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-products .device-deck__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--pp-gap);
}

.page-products .device-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  cursor: pointer;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-products .device-card:hover {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
}

.page-products .device-card__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .device-card__os {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--text);
}

.page-products .device-card__state {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.page-products .device-card__shot {
  display: block;
  border-radius: var(--pp-radius-sm);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
}

.page-products .device-card__shot img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .device-card__name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text);
}

.page-products .device-card__desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .device-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.page-products .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.16);
}

.page-products .status-dot--dim {
  background: var(--ink-600);
  box-shadow: none;
}

/* radio 切换：选中卡片高亮 */
.page-products #pp-dev-ios:checked ~ .device-deck__grid .device-card--ios,
.page-products #pp-dev-android:checked ~ .device-deck__grid .device-card--android,
.page-products #pp-dev-web:checked ~ .device-deck__grid .device-card--web {
  border-color: var(--line-cyan);
  box-shadow: 0 0 0 1px var(--line-cyan), 0 18px 40px -28px rgba(34, 211, 238, 0.6);
}

/* ---------- follow ---------- */
.page-products .follow {
  padding: 56px 0;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-products .follow-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--pp-gap);
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: pp-follow;
}

.page-products .follow-track__item {
  position: relative;
  padding: 20px 18px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
}

.page-products .follow-track__idx {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .follow-track__title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text);
}

.page-products .follow-track__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- compare ---------- */
.page-products .compare {
  padding: 56px 0;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-products .compare__banner {
  margin: 28px 0 24px;
}

.page-products .compare__wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
}

.page-products .compare__table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.page-products .compare__table caption {
  text-align: left;
}

.page-products .compare__table th,
.page-products .compare__table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-dim);
  vertical-align: top;
}

.page-products .compare__table thead th {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--line);
}

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

.page-products .compare__table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.page-products .compare__table tbody tr:hover {
  background: rgba(34, 211, 238, 0.06);
}

.page-products .compare__table tbody tr:hover .ck {
  color: var(--gold-soft);
}

.page-products .ck {
  display: inline-block;
  margin-right: 6px;
  color: var(--cyan);
  font-weight: 700;
}

.page-products .compare__note {
  margin: 18px 0 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ---------- version ---------- */
.page-products .version {
  padding: 56px 0;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-products .version__panel {
  padding: 28px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.05), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
}

.page-products .version__head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  color: var(--text);
}

.page-products .version__head p {
  margin: 0;
  max-width: 720px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .version__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--pp-gap);
  margin: 26px 0 22px;
}

.page-products .version__stats .stat {
  padding: 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius-sm);
}

.page-products .version__stats .stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--gold);
}

.page-products .version__stats .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.page-products .version__tip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-products .version__tip-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-cyan);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-display);
  cursor: pointer;
}

.page-products .version__tip-label {
  font-size: 0.88rem;
  color: var(--text);
}

.page-products .version__tip-body {
  flex: 1 1 100%;
  margin-top: 8px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius-sm);
}

.page-products .version__tip-body ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-dim);
  line-height: 1.75;
  font-size: 0.9rem;
}

/* ---------- install ---------- */
.page-products .install {
  padding: 56px 0;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-products .install__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 32px;
}

.page-products .install__col {
  padding: 22px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
}

.page-products .install__col-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .install__col-head h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text);
}

.page-products .install__steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .install__step {
  position: relative;
  display: flex;
  gap: 14px;
  padding-bottom: 20px;
}

.page-products .install__step:last-child {
  padding-bottom: 0;
}

.page-products .install__step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 0;
  border-left: 1px dashed var(--line);
}

.page-products .install__step:last-child::before {
  display: none;
}

.page-products .install__idx {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line-cyan);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.85rem;
}

.page-products .install__body h4 {
  margin: 2px 0 6px;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  color: var(--text);
}

.page-products .install__body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .install__lower {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  margin-top: 32px;
  align-items: start;
}

.page-products .install__figure {
  margin: 0;
}

.page-products .install__trouble h3 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text);
}

.page-products .install__trouble-list {
  margin: 0 0 14px;
  padding-left: 18px;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-products .install__trouble-list strong {
  color: var(--text);
}

.page-products .install__trouble-more {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.page-products .install__trouble-more a {
  color: var(--cyan);
}

/* ---------- calendar ---------- */
.page-products .calendar {
  padding: 56px 0;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-products .calendar__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-products .calendar__body h2 {
  margin: 10px 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  color: var(--text);
}

.page-products .calendar__body .lead {
  color: var(--text-dim);
  line-height: 1.75;
}

.page-products .calendar__steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .calendar__step {
  display: flex;
  gap: 14px;
  padding-bottom: 16px;
}

.page-products .calendar__step:last-child {
  padding-bottom: 0;
}

.page-products .calendar__step-idx {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line-cyan);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.82rem;
}

.page-products .calendar__step p {
  margin: 2px 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .calendar__note {
  margin: 20px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .calendar__note a {
  color: var(--cyan);
}

.page-products .calendar__aside {
  padding: 22px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-soft);
  border-radius: var(--pp-radius);
}

.page-products .calendar__aside h3 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  color: var(--text);
}

.page-products .calendar__pick {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .calendar__pick li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-products .calendar__pick strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.92rem;
  color: var(--text);
}

.page-products .calendar__pick span {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-dim);
}

/* ---------- cta ---------- */
.page-products .apps-cta {
  padding: 56px 0 64px;
  background:
    radial-gradient(90% 80% at 0% 0%, rgba(212, 175, 55, 0.10), transparent 55%),
    var(--ink-900);
}

.page-products .apps-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: rgba(255, 255, 255, 0.02);
}

.page-products .apps-cta__text h2 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  color: var(--text);
}

.page-products .apps-cta__text p {
  margin: 0;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .apps-cta__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .apps-cta__actions .btn {
  justify-content: center;
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .page-products .device-deck__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .follow-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .version__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .install__grid,
  .page-products .install__lower,
  .page-products .calendar__grid,
  .page-products .apps-cta__inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .page-products .device-deck__grid,
  .page-products .follow-track,
  .page-products .version__stats {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-products .app-hero {
    padding: 28px 0 40px;
  }
}