.page-products {
  --pp-gap: clamp(1rem, 3vw, 1.75rem);
  --pp-line: var(--ink-700);
  background: var(--ink-950);
  color: var(--text-soft);
  overflow-wrap: break-word;
}

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

.page-products .prod-hero {
  padding-top: calc(var(--header-h) + clamp(1.25rem, 4vw, 2.5rem));
}

.page-products .prod-hero .breadcrumb {
  margin-bottom: clamp(1.25rem, 4vw, 2.25rem);
}

/* ---------- 首屏分屏 ---------- */

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 3rem);
}

.page-products .prod-hero__main {
  order: 1;
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.6rem);
  min-width: 0;
}

.page-products .device-panel {
  order: 2;
  border: 1px solid var(--pp-line);
  background: var(--ink-850);
  padding: 1.1rem 1.15rem 1.25rem;
  min-width: 0;
}

.page-products .device-panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--pp-line);
}

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

.page-products .device-list__item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .device-list__icon {
  width: 20px;
  height: 13px;
  border: 1.5px solid var(--cyan-400);
  border-radius: 1px;
}

.page-products .device-list__icon--wide {
  width: 20px;
  height: 15px;
}

.page-products .device-list__icon--tall {
  width: 12px;
  height: 19px;
  margin-left: 4px;
}

.page-products .device-list__name {
  font-size: 0.92rem;
  color: var(--white);
}

.page-products .device-list__meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
  white-space: nowrap;
}

.page-products .device-panel__note {
  margin: 0.9rem 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--gray-400);
}

.page-products .device-panel__scale {
  display: flex;
  gap: 4px;
  margin-top: 0.9rem;
}

.page-products .device-panel__scale span {
  display: block;
  height: 3px;
  flex: 1;
  background: var(--ink-700);
}

.page-products .device-panel__scale span:first-child,
.page-products .device-panel__scale span:nth-child(2) {
  background: var(--cyan-400);
}

.page-products .prod-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5.4vw, 3rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--white);
  max-width: 20ch;
}

.page-products .prod-hero .lead {
  margin: 0;
  max-width: 40ch;
  color: var(--text-soft);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-products .prod-hero__subtitle {
  margin: 0.75rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--white);
  padding-top: 1.1rem;
  border-top: 1px solid var(--pp-line);
}

/* ---------- 通道拼贴 ---------- */

.page-products .channel-mosaic {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  min-width: 0;
}

.page-products .channel-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--pp-line);
  background: var(--ink-850);
  overflow: hidden;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products .channel-card:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 227, 218, 0.45);
}

.page-products .channel-card .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .channel-card__body {
  display: grid;
  gap: 0.45rem;
  padding: 1rem 1.1rem 1.25rem;
}

.page-products .channel-card__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-products .channel-card__body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-products .channel-card .tag {
  justify-self: start;
}

.page-products .channel-card--apple {
  border-left: 3px solid var(--cyan-400);
}

.page-products .channel-card__bars {
  display: flex;
  gap: 5px;
  padding: 0 1.1rem 1.25rem;
  margin-top: auto;
}

.page-products .channel-card__bars span {
  display: block;
  height: 4px;
  width: 26px;
  background: var(--ink-700);
}

.page-products .channel-card__bars span:nth-child(1),
.page-products .channel-card__bars span:nth-child(2) {
  background: var(--cyan-400);
}

/* ---------- 能力清单 ---------- */

.page-products .caps {
  background: var(--ink-850);
  border-top: 1px solid var(--pp-line);
  border-bottom: 1px solid var(--pp-line);
}

.page-products .caps__head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-products .caps__title,
.page-products .devices__title,
.page-products .ios__title,
.page-products .first-run__title,
.page-products .prod-cta h2 {
  margin: 0.4rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.022em;
  color: var(--white);
}

.page-products .caps__note,
.page-products .devices__note {
  margin: 0;
  max-width: 38ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray-400);
}

.page-products .cap-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pp-line);
}

.page-products .cap-item {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.2rem 0.9rem;
  align-items: start;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .cap-item__num {
  color: var(--cyan-400);
  padding-top: 0.2rem;
}

.page-products .cap-item__body h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--white);
}

.page-products .cap-item__body p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 四步开通（纸面区） ---------- */

.page-products .open-steps {
  background: var(--paper-100);
  color: var(--paper-ink);
}

.page-products .open-steps .eyebrow {
  color: rgba(27, 36, 54, 0.55);
}

.page-products .open-steps__head {
  max-width: 46ch;
}

.page-products .open-steps__title {
  margin: 0.4rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.022em;
  color: var(--paper-ink);
}

.page-products .open-steps__note {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(27, 36, 54, 0.75);
}

.page-products .step-cards {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
}

.page-products .step-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--paper-300);
  box-shadow: 4px 4px 0 var(--paper-300);
  padding: 1.15rem 1.35rem 1.3rem 1.1rem;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-products .step-card:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0 var(--paper-300);
}

.page-products .step-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
  height: 20px;
  background: var(--paper-100);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}

.page-products .step-card__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--white);
  background: var(--ink-950);
  padding: 0.22rem 0.5rem;
  margin-bottom: 0.7rem;
}

.page-products .step-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--paper-ink);
}

.page-products .step-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(27, 36, 54, 0.76);
}

.page-products .open-steps__media {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  border: 1px solid var(--paper-300);
  background: var(--ink-950);
}

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

/* ---------- 苹果端 ---------- */

.page-products .ios {
  background: var(--ink-950);
}

.page-products .ios__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: center;
}

.page-products .ios__figure {
  margin: 0;
  min-width: 0;
}

.page-products .ios__media {
  aspect-ratio: 3 / 4;
  border: 1px solid var(--pp-line);
  overflow: hidden;
}

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

.page-products .ios__figure .media__caption {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--gray-400);
}

.page-products .ios__text {
  margin: 0 0 1.1rem;
  max-width: 40ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-products .ios__facts {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
}

.page-products .ios__facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--pp-line);
  font-size: 0.9rem;
  color: var(--text-soft);
}

.page-products .ios__facts .mono-label {
  color: var(--cyan-150);
}

.page-products .ios__ring-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.page-products .sync-ring {
  position: relative;
  flex: 0 0 auto;
  width: 108px;
  height: 108px;
}

.page-products .sync-ring svg {
  width: 100%;
  height: 100%;
  display: block;
}

.page-products .sync-ring__arc {
  stroke-dasharray: 226 89;
  animation: pp-ring-pulse 2.4s ease-in-out infinite;
}

.page-products .sync-ring__label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--cyan-150);
}

.page-products .ios__ring-note {
  margin: 0;
  flex: 1 1 14rem;
  min-width: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--gray-400);
}

@keyframes pp-ring-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* ---------- 设备要求 ---------- */

.page-products .devices__head {
  max-width: 44ch;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
}

.page-products .devices__media {
  border: 1px solid var(--pp-line);
  margin-bottom: clamp(1.25rem, 3vw, 1.85rem);
}

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

.page-products .device-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-products .device-spec {
  border-left: 2px solid var(--cyan-400);
  padding: 0.2rem 0 0.2rem 1rem;
  min-width: 0;
}

.page-products .device-spec .mono-label {
  color: var(--gray-400);
}

.page-products .device-spec h3 {
  margin: 0.4rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--white);
}

.page-products .device-spec p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 首次进入 ---------- */

.page-products .first-run {
  background: var(--ink-850);
  border-top: 1px solid var(--pp-line);
  border-bottom: 1px solid var(--pp-line);
}

.page-products .first-run__title {
  max-width: 24ch;
}

.page-products .first-list {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-products .first-item {
  border-top: 1px solid var(--cyan-400);
  padding-top: 0.95rem;
  min-width: 0;
}

.page-products .first-item__num {
  color: var(--cyan-400);
}

.page-products .first-item h3 {
  margin: 0.45rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
}

.page-products .first-item p {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .first-item__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 227, 218, 0.45);
  padding-bottom: 2px;
}

.page-products .first-item__link:hover,
.page-products .first-item__link:focus-visible {
  color: var(--cyan-150);
  border-bottom-color: var(--cyan-150);
}

/* ---------- 末尾动作 ---------- */

.page-products .prod-cta__inner {
  border: 1px solid var(--pp-line);
  background:
    linear-gradient(135deg, var(--cyan-wash), transparent 62%),
    var(--ink-850);
  padding: clamp(1.35rem, 4vw, 2.35rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-products .prod-cta__text p {
  margin: 0;
  max-width: 44ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-products .prod-cta__foot {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: var(--gray-400);
}

.page-products .prod-cta__foot a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-products .step-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-products .device-specs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem;
  }

  .page-products .first-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 760px) {
  .page-products .channel-mosaic {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    grid-template-areas:
      "web apple"
      "web tablet";
    align-items: start;
  }

  .page-products .channel-card--web { grid-area: web; }
  .page-products .channel-card--apple { grid-area: apple; }
  .page-products .channel-card--tablet { grid-area: tablet; }
}

@media (min-width: 920px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-products .prod-hero__main {
    order: 0;
  }

  .page-products .device-panel {
    order: 0;
    position: sticky;
    top: calc(var(--header-h-scrolled) + 1.5rem);
  }

  .page-products .ios__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }

  .page-products .prod-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-products .step-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    padding-bottom: 1.5rem;
  }

  .page-products .step-card:nth-child(even) {
    transform: translateY(1.5rem);
  }

  .page-products .step-card:nth-child(even):hover {
    transform: translateY(calc(1.5rem - 2px));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .channel-card,
  .page-products .step-card,
  .page-products .sync-ring__arc {
    transition: none;
    animation: none;
  }

  .page-products .channel-card:hover,
  .page-products .step-card:hover {
    transform: none;
  }

  .page-products .step-card:nth-child(even) {
    transform: none;
  }
}
<<<END>>>