.page-products {
  --page-bg-start: #0a0a0a;
  --page-bg-end: #111111;
  --page-card-glow: rgba(0, 212, 255, 0.15);
  --page-gold-pulse: rgba(255, 215, 0, 0.4);
  --page-cyan-glass: rgba(0, 212, 255, 0.08);
  --page-violet-glass: rgba(139, 92, 246, 0.06);
  background: var(--page-bg-start);
  color: var(--color-white);
  font-family: var(--font-body);
  padding: 0 var(--space-md) var(--space-2xl);
  min-height: 100vh;
}

/* ── 面包屑 ── */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) 0 var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: var(--fs-caption);
  color: var(--color-gray);
}
.page-products .breadcrumb-link {
  color: var(--color-gray);
  text-decoration: none;
  transition: color var(--transition);
}
.page-products .breadcrumb-link:hover,
.page-products .breadcrumb-link:focus-visible {
  color: var(--color-gold);
}
.page-products .breadcrumb-sep {
  color: var(--color-gold);
  font-weight: var(--fw-bold);
}
.page-products .breadcrumb-current {
  color: var(--color-white);
  font-weight: var(--fw-bold);
}

/* ── 通用章节容器 ── */
.page-products .section-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-glass);
}
.page-products .section-panel:last-child {
  border-bottom: none;
}
.page-products .section-narrow {
  grid-column: 1 / -1;
}
.page-products .section-wide {
  grid-column: 1 / -1;
}
.page-products .section-label {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-md);
  display: inline-block;
}
.page-products .gradient-text {
  background: var(--gradient-cyber);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── 首屏：下载英雄区 ── */
.page-products .download-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding-top: var(--space-md);
}
.page-products .hero-icon-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-md);
}
.page-products .hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 28px;
  box-shadow: 0 0 40px var(--page-gold-pulse), 0 0 80px rgba(0, 212, 255, 0.1);
  object-fit: cover;
  background: var(--color-glass);
  transition: transform var(--transition);
}
.page-products .hero-icon:hover {
  transform: scale(1.04);
}
.page-products .hero-title {
  font-family: var(--font-heading);
  font-size: var(--fs-h1);
  font-weight: var(--fw-black);
  text-align: center;
  margin: 0 0 var(--space-sm);
  line-height: 1.1;
  letter-spacing: 0.03em;
}
.page-products .hero-subtitle {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-regular);
  text-align: center;
  color: var(--color-gray);
  margin: 0 0 var(--space-sm);
  letter-spacing: 0.06em;
}
.page-products .hero-desc {
  text-align: center;
  max-width: 480px;
  margin: 0 auto var(--space-lg);
  font-size: var(--fs-body);
  line-height: 1.6;
}
.page-products .download-card {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 215, 0, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}
.page-products .download-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(0, 212, 255, 0.06), transparent 60%),
              radial-gradient(circle at 70% 60%, rgba(139, 92, 246, 0.04), transparent 50%);
  pointer-events: none;
}
.page-products .download-card-inner {
  position: relative;
  z-index: 1;
}
.page-products .download-label {
  display: inline-block;
  margin-bottom: var(--space-sm);
}
.page-products .download-version {
  font-size: var(--fs-caption);
  color: var(--color-gray);
  margin: 0 0 var(--space-lg);
  letter-spacing: 0.02em;
}
.page-products .download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.page-products .download-btn {
  flex: 1 1 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.page-products .btn-gold {
  background: linear-gradient(135deg, #FFD700, #F59E0B);
  color: #0D0D0D;
  box-shadow: 0 0 20px var(--page-gold-pulse);
  animation: goldPulse 2.4s ease-in-out infinite;
}
@keyframes goldPulse {
  0%, 100% { box-shadow: 0 0 16px var(--page-gold-pulse); }
  50% { box-shadow: 0 0 36px rgba(255, 215, 0, 0.65), 0 0 60px rgba(255, 215, 0, 0.2); }
}
.page-products .btn-gold:hover,
.page-products .btn-gold:focus-visible {
  transform: scale(1.04);
  box-shadow: 0 0 50px rgba(255, 215, 0, 0.6);
}
.page-products .btn-gold:active {
  transform: scale(0.96);
}
.page-products .btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-gold);
  box-shadow: none;
}
.page-products .btn-ghost:hover,
.page-products .btn-ghost:focus-visible {
  background: rgba(255, 215, 0, 0.12);
  transform: scale(1.02);
}
.page-products .btn-ghost:active {
  transform: scale(0.96);
}
.page-products .btn-icon {
  font-size: 1.2em;
  line-height: 1;
}
.page-products .qrcode-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.page-products .qrcode-img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--color-glass);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.page-products .qrcode-label {
  font-size: var(--fs-caption);
  margin: 0;
}

/* ── 功能亮点 ── */
.page-products .features-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}
.page-products .features-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.page-products .feature-card {
  background: var(--color-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.page-products .feature-card:hover,
.page-products .feature-card:focus-within {
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: 0 0 30px var(--page-card-glow);
}
.page-products .feature-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  letter-spacing: 0.02em;
  list-style: none;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}
.page-products .feature-card-header::-webkit-details-marker {
  display: none;
}
.page-products .feature-card-header::marker {
  display: none;
  content: '';
}
.page-products .feature-card[open] .feature-card-header {
  background: rgba(0, 212, 255, 0.06);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}
.page-products .feature-icon {
  font-size: 1.6em;
  line-height: 1;
  flex-shrink: 0;
}
.page-products .feature-name {
  flex: 1;
  color: var(--color-white);
}
.page-products .feature-toggle {
  font-size: 1.4em;
  font-weight: var(--fw-bold);
  color: var(--color-gold);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.page-products .feature-card[open] .feature-toggle {
  transform: rotate(45deg);
}
.page-products .feature-detail {
  padding: var(--space-lg);
  animation: fadeSlideIn 0.3s ease;
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-products .feature-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-white);
  margin: 0 0 var(--space-md);
  max-width: 640px;
}
.page-products .feature-preview {
  margin-top: var(--space-md);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}
.page-products .feature-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
}
.page-products .features-narrow {
  grid-column: 1 / -1;
}
.page-products .features-narrow-inner {
  background: var(--page-violet-glass);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}
.page-products .narrow-label {
  font-family: var(--font-heading);
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 var(--space-md);
}
.page-products .feature-highlights {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.page-products .highlight-item {
  position: relative;
  padding-left: var(--space-lg);
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--color-white);
}
.page-products .highlight-item::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--color-cyan);
  font-size: 0.7em;
  top: 0.2em;
}

/* ── 历史版本 ── */
.page-products .history-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}
.page-products .history-intro {
  font-size: var(--fs-body);
  line-height: 1.6;
  max-width: 480px;
  margin: var(--space-sm) 0 0;
}
.page-products .archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}
.page-products .archive-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: border-color var(--transition), transform var(--transition);
}
.page-products .archive-item:hover {
  border-color: rgba(0, 212, 255, 0.2);
  transform: translateY(-3px);
}
.page-products .archive-img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.3);
}
.page-products .archive-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.page-products .archive-date {
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  color: var(--color-white);
}
.page-products .archive-desc {
  font-size: var(--fs-caption);
  line-height: 1.5;
  margin: 0;
}
.page-products .archive-note {
  font-size: var(--fs-caption);
  margin-top: var(--space-md);
  text-align: center;
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 123, 0, 0.06);
  border-radius: var(--radius-sm);
}

/* ── 多设备适配 ── */
.page-products .device-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}
.page-products .device-showcase {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  background: rgba(0, 0, 0, 0.3);
}
.page-products .device-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}
.page-products .device-narrow {
  grid-column: 1 / -1;
}
.page-products .device-list {
  list-style: none;
  padding: 0;
  margin: var(--space-sm) 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm) var(--space-md);
}
.page-products .device-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-body);
  color: var(--color-white);
  padding: var(--space-sm) 0;
}
.page-products .device-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-cyber);
  flex-shrink: 0;
}

/* ── 支持与反馈 ── */
.page-products .support-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  border-bottom: none !important;
}
.page-products .support-desc {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-gray);
  margin: 0 0 var(--space-lg);
  max-width: 480px;
}
.page-products .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.page-products .btn-primary {
  background: var(--color-red);
  color: var(--color-white);
  border: none;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}
.page-products .btn-primary:hover,
.page-products .btn-primary:focus-visible {
  background: #cc0000;
  transform: scale(1.03);
  box-shadow: 0 0 30px rgba(230, 0, 0, 0.3);
}
.page-products .btn-primary:active {
  transform: scale(0.96);
}
.page-products .support-narrow {
  grid-column: 1 / -1;
}
.page-products .trust-statement {
  background: rgba(255, 215, 0, 0.04);
  border: 1px solid rgba(255, 215, 0, 0.08);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
}
.page-products .trust-text {
  font-size: var(--fs-caption);
  line-height: 1.6;
  color: var(--color-gray);
  margin: 0;
}

/* ── 桌面端断点 ── */
@media (min-width: 768px) {
  .page-products {
    padding: 0 var(--space-xl) var(--space-2xl);
  }
  .page-products .section-panel {
    grid-template-columns: 280px 1fr;
    padding: var(--space-2xl) 0;
  }
  .page-products .section-narrow {
    grid-column: 1 / 2;
  }
  .page-products .section-wide {
    grid-column: 2 / 3;
  }
  .page-products .download-hero {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
  .page-products .download-hero-narrow {
    grid-column: 1 / 2;
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
  }
  .page-products .download-hero-wide {
    grid-column: 2 / 3;
  }
  .page-products .hero-icon-wrapper {
    justify-content: flex-start;
  }
  .page-products .hero-icon {
    width: 160px;
    height: 160px;
  }
  .page-products .hero-title {
    text-align: left;
  }
  .page-products .hero-subtitle {
    text-align: left;
  }
  .page-products .hero-desc {
    text-align: left;
    margin: 0 0 var(--space-lg);
  }
  .page-products .download-actions {
    flex-wrap: nowrap;
  }
  .page-products .qrcode-img {
    width: 140px;
    height: 140px;
  }
  .page-products .features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .page-products .archive-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .page-products .archive-img {
    max-height: 180px;
  }
  .page-products .device-list {
    grid-template-columns: 1fr;
  }
  .page-products .support-actions {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1024px) {
  .page-products .section-panel {
    grid-template-columns: 320px 1fr;
    gap: var(--space-2xl);
  }
  .page-products .features-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-products .hero-icon {
    width: 200px;
    height: 200px;
  }
  .page-products .qrcode-img {
    width: 160px;
    height: 160px;
  }
}

/* ── 确保窄屏不溢出 ── */
@media (max-width: 400px) {
  .page-products .download-actions {
    flex-direction: column;
  }
  .page-products .download-btn {
    flex: 1 1 auto;
    width: 100%;
  }
  .page-products .device-list {
    grid-template-columns: 1fr;
  }
  .page-products .archive-grid {
    grid-template-columns: 1fr;
  }
  .page-products .hero-icon {
    width: 96px;
    height: 96px;
  }
}
.page-products .btn,
.page-products .breadcrumb-link,
.page-products .feature-card,
.page-products .archive-item {
  -webkit-tap-highlight-color: rgba(255, 215, 0, 0.15);
}
.page-products *:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}