.page-products {
  --pd-section-gap: 4.5rem;
  --pd-container-pad: 1.25rem;
  --pd-scene-radius: 24px;
  background: var(--primary);
  color: var(--white);
  overflow-x: clip;
}

.page-products .pd-hero-inner,
.page-products .pd-scenes,
.page-products .pd-versions,
.page-products .pd-system,
.page-products .pd-download-island {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--pd-container-pad);
}

/* ============ 首屏 ============ */

.page-products .pd-hero {
  padding-block: 5rem 3rem;
  position: relative;
  background: linear-gradient(160deg, var(--primary-light) 0%, var(--primary) 55%, var(--primary-dark) 100%);
}

.page-products .pd-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}

.page-products .pd-hero-inner {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.page-products .pd-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--silver);
  margin-bottom: 1.5rem;
}

.page-products .pd-breadcrumb a {
  color: var(--silver);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-products .pd-breadcrumb a:hover,
.page-products .pd-breadcrumb a:focus-visible {
  color: var(--accent);
}

.page-products .pd-breadcrumb-sep {
  opacity: 0.5;
}

.page-products .pd-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  background: rgba(57, 255, 20, 0.08);
}

.page-products .pd-hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 8vw, 4.5rem);
  line-height: 1.05;
  margin: 0 0 1.25rem;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-products .pd-title-version {
  display: inline-block;
  margin-left: 0.35em;
  font-family: var(--font-mono);
  font-size: 0.42em;
  color: var(--accent);
  border: 2px solid var(--accent);
  border-radius: 999px;
  padding: 0.2em 0.6em;
  vertical-align: 0.5em;
  letter-spacing: 0.05em;
}

.page-products .pd-hero-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--silver);
  max-width: 44ch;
  margin: 0 0 1.5rem;
}

.page-products .pd-hero-lead strong {
  color: var(--white);
  font-weight: 600;
}

.page-products .pd-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.page-products .pd-hero-cta,
.page-products .pd-download-btn {
  animation: pd-pulse-glow 2.4s ease-in-out infinite;
}

@keyframes pd-pulse-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.45);
  }
  50% {
    box-shadow: 0 0 26px 4px rgba(57, 255, 20, 0.22);
  }
}

.page-products .pd-hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-products .pd-phone-frame {
  position: relative;
  width: min(74vw, 300px);
  aspect-ratio: 6 / 12;
  background: var(--primary-dark);
  border: 3px solid var(--silver);
  border-radius: 36px;
  padding: 14px;
  box-shadow: 0 24px 60px rgba(5, 18, 38, 0.6), inset 0 0 0 2px rgba(192, 192, 192, 0.25);
}

.page-products .pd-phone-frame::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 20px;
  background: var(--primary-dark);
  border-radius: 12px;
  z-index: 2;
}

.page-products .pd-phone-screen {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
  display: block;
}

.page-products .pd-app-icon-wrap {
  position: relative;
  z-index: 3;
  margin-top: -40px;
}

.page-products .pd-app-icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  object-fit: cover;
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.2), 0 12px 24px rgba(0, 0, 0, 0.3);
  display: block;
}

/* ============ 通用章节头 ============ */

.page-products .pd-scenes,
.page-products .pd-versions,
.page-products .pd-system,
.page-products .pd-download {
  padding-block: var(--pd-section-gap);
}

.page-products .pd-section-head {
  margin-bottom: 2.5rem;
}

.page-products .pd-section-head h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  margin: 0.75rem 0;
}

.page-products .pd-section-head p {
  color: var(--silver);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 56ch;
}

/* ============ 场景卡 ============ */

.page-products .pd-scenes {
  padding-bottom: calc(var(--pd-section-gap) - 1.5rem);
}

.page-products .pd-scene {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding: 1.75rem;
  border-radius: var(--pd-scene-radius);
  border: 1px solid rgba(192, 192, 192, 0.18);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.05) 0%, transparent 40%), var(--primary);
}

.page-products .pd-scene::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 80px;
  height: 3px;
  background: var(--accent);
  border-radius: 0 0 3px 0;
}

.page-products .pd-scene--live {
  background: var(--neutral-light);
  color: var(--primary);
  border-color: transparent;
}

.page-products .pd-scene--live .pd-scene-content h3,
.page-products .pd-scene--live .pd-scene-content p {
  color: var(--primary);
}

.page-products .pd-scene--live .pd-scene-features li {
  color: #2a3b57;
}

.page-products .pd-scene--review {
  border-color: rgba(57, 255, 20, 0.28);
  background: linear-gradient(315deg, rgba(57, 255, 20, 0.06) 0%, transparent 45%), var(--primary);
}

.page-products .pd-scene-media {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
}

.page-products .pd-scene-media img,
.page-products .pd-live-board {
  width: 100%;
  height: auto;
  display: block;
}

.page-products .pd-live-board {
  border-radius: 16px;
}

.page-products .pd-scene-content {
  position: relative;
  padding-top: 0.5rem;
}

.page-products .pd-scene-num {
  position: absolute;
  top: -1rem;
  right: 0;
  font-family: var(--font-head);
  font-size: 4.5rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  opacity: 0.25;
  pointer-events: none;
}

.page-products .pd-scene-content h3 {
  font-family: var(--font-head);
  font-size: 1.7rem;
  margin: 0 0 0.75rem;
  position: relative;
  z-index: 1;
}

.page-products .pd-scene-content p {
  color: var(--silver);
  line-height: 1.65;
  margin: 0 0 1.25rem;
  max-width: 50ch;
}

.page-products .pd-scene-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-products .pd-scene-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  color: var(--silver);
  font-size: 0.95rem;
  line-height: 1.5;
}

.page-products .pd-feat-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 0.05em;
}

/* ============ 版本演进 ============ */

.page-products .pd-versions {
  background: var(--primary-dark);
}

.page-products .pd-version-chart-wrap {
  overflow-x: auto;
  padding-bottom: 0.5rem;
  -webkit-overflow-scrolling: touch;
}

.page-products .pd-version-chart {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

.page-products .pd-version-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-products .pd-version-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(18, 43, 74, 0.55);
  border: 1px solid rgba(192, 192, 192, 0.16);
  border-radius: 12px;
  align-items: start;
}

.page-products .pd-version-item strong {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.05rem;
}

.page-products .pd-version-item span {
  color: var(--silver);
  font-size: 0.95rem;
  line-height: 1.55;
}

.page-products .pd-version-item--current {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.12);
}

/* ============ 系统要求 ============ */

.page-products .pd-system-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.page-products .pd-system-card {
  padding: 1.5rem 1.25rem;
  border-radius: 16px;
  background: linear-gradient(160deg, var(--primary-light), var(--primary));
  border: 1px solid rgba(192, 192, 192, 0.2);
  text-align: left;
}

.page-products .pd-system-card h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--silver);
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
}

.page-products .pd-system-value {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.page-products .pd-system-note {
  color: var(--silver);
  font-size: 0.9rem;
  line-height: 1.4;
  display: block;
}

/* ============ 下载渠道 ============ */

.page-products .pd-download {
  position: relative;
  overflow: hidden;
}

.page-products .pd-download-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-products .pd-download-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.page-products .pd-download-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--primary) 0%, rgba(10, 31, 68, 0.6) 50%, var(--primary-dark) 100%);
}

.page-products .pd-download-island {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: 40px;
  background: rgba(5, 18, 38, 0.72);
  border: 1px solid var(--accent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.page-products .pd-download-island h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0.5rem 0 0.75rem;
}

.page-products .pd-download-island p {
  color: var(--silver);
  max-width: 52ch;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.page-products .pd-download-btn {
  display: inline-block;
  margin-bottom: 2rem;
}

.page-products .pd-download-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.page-products .pd-qr-svg {
  width: 132px;
  height: 132px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.page-products .pd-download-qr span {
  color: var(--silver);
  font-size: 0.85rem;
}

.page-products .pd-download-extras {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 2rem auto 0;
  padding-inline: var(--pd-container-pad);
  display: grid;
  gap: 1rem;
}

.page-products .pd-download-tip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  background: rgba(18, 43, 74, 0.5);
  border-radius: 999px;
  border: 1px solid rgba(192, 192, 192, 0.14);
}

.page-products .pd-download-tip span {
  color: var(--silver);
  font-size: 0.95rem;
}

.page-products .pd-download-tip a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
}

.page-products .pd-download-tip a:hover,
.page-products .pd-download-tip a:focus-visible {
  text-decoration: underline;
}

/* ============ 桌面端 ============ */

@media (min-width: 900px) {
  .page-products {
    --pd-section-gap: 7rem;
    --pd-container-pad: 2.5rem;
  }

  .page-products .pd-hero {
    padding-block: 8rem 4rem;
  }

  .page-products .pd-hero-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 4rem;
  }

  .page-products .pd-hero-visual {
    padding-right: 1rem;
  }

  .page-products .pd-phone-frame {
    width: min(340px, 100%);
  }

  .page-products .pd-app-icon-wrap {
    position: absolute;
    top: 0;
    left: -24px;
    margin: 0;
    transform: rotate(-6deg);
    transition: transform 0.4s ease;
  }

  .page-products .pd-app-icon-wrap:hover {
    transform: rotate(0deg);
  }

  .page-products .pd-scene {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 3rem 3.5rem;
    margin-bottom: 3.5rem;
  }

  .page-products .pd-scene--live .pd-scene-media {
    order: 2;
  }

  .page-products .pd-scene--live .pd-scene-content {
    order: 1;
  }

  .page-products .pd-scene-num {
    font-size: 7rem;
    top: -2rem;
  }

  .page-products .pd-scene-content h3 {
    font-size: 2rem;
  }

  .page-products .pd-version-chart-wrap {
    padding: 1rem 2rem;
  }

  .page-products .pd-version-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .page-products .pd-system-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }

  .page-products .pd-system-card {
    padding: 2rem 1.5rem;
  }

  .page-products .pd-download-island {
    padding: 4rem 2rem;
  }

  .page-products .pd-download-extras {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-products .pd-download-tip {
    flex-direction: column;
    align-items: flex-start;
    border-radius: 16px;
  }
}