/* ===== 页面专属 · 客户端下载 ===== */
.page-products {
  background: var(--bg-primary);
  color: var(--text-main);
}

.page-products .mono {
  font-family: var(--font-mono);
}

.page-products .products-section {
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-products .section-head {
  margin-bottom: 32px;
}

.page-products .section-head h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 4vw, 32px);
  line-height: 1.25;
}

/* hero */
.page-products .products-hero {
  position: relative;
  padding-top: 40px;
  padding-bottom: 32px;
}

.page-products .products-hero::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), transparent 60%, var(--accent-green));
}

.page-products .products-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-products .products-hero-desc {
  max-width: 680px;
  margin: 0;
  color: var(--text-sub);
  line-height: 1.7;
}

.page-products .products-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  color: var(--text-sub);
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-products .meta-item .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: b-sports-status-pulse 2s ease-in-out infinite;
}

@keyframes b-sports-status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* toc */
.page-products .products-toc {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.page-products .toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .toc-list a {
  display: block;
  padding: 8px 0;
  color: var(--accent-cyan);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px dashed var(--border-color);
  transition: color 0.3s ease;
}

.page-products .toc-list a:hover {
  color: var(--accent-green);
}

/* features */
.page-products .features-layout {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-products .features-visual {
  overflow: hidden;
  border-radius: 6px;
  line-height: 0;
}

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

.page-products .features-list {
  display: grid;
  gap: 16px;
}

.page-products .feature-item {
  padding: 20px;
  border-left: 3px solid var(--accent-cyan);
  transition: transform 0.3s var(--ease), border-color 0.3s ease;
}

.page-products .feature-item:hover {
  transform: translateY(-4px);
  border-left-color: var(--accent-orange);
}

.page-products .feature-index {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
}

.page-products .feature-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.page-products .feature-item p {
  margin: 0;
  color: var(--text-sub);
  line-height: 1.65;
}

.page-products .features-stats {
  margin-top: 24px;
  padding: 20px;
  background: var(--bg-secondary);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-products .stat {
  text-align: center;
}

.page-products .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  color: var(--accent-orange);
}

.page-products .stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-sub);
}

/* versions */
.page-products .products-versions {
  background: var(--bg-secondary);
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-products .versions-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 28px;
}

.page-products .version-card {
  padding: 20px;
}

.page-products .version-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.page-products .version-platform {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-products .platform-tag {
  padding: 2px 8px;
  background: var(--accent-cyan);
  color: #000;
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.page-products .version-platform h3 {
  margin: 0;
  font-size: 17px;
}

.page-products .version-num,
.page-products .version-badge {
  color: var(--accent-green);
  font-family: var(--font-mono);
}

.page-products .version-notes {
  margin: 0;
  padding-left: 18px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.6;
  display: grid;
  gap: 6px;
}

.page-products .versions-update {
  display: grid;
  gap: 20px;
  align-items: center;
}

.page-products .versions-update img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}

.page-products .versions-update-note {
  padding: 20px;
  background: var(--bg-primary);
  border-left: 3px solid var(--accent-orange);
}

.page-products .note-label {
  margin-top: 0;
  color: var(--accent-orange);
  font-size: 14px;
}

.page-products .versions-update-note p {
  margin: 8px 0 0;
  color: var(--text-sub);
  line-height: 1.65;
}

/* download */
.page-products .products-download {
  padding-bottom: 56px;
}

.page-products .download-platforms-img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  margin-bottom: 28px;
  display: block;
}

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

.page-products .download-card {
  padding: 20px;
  border-top: 3px solid var(--accent-cyan);
  transition: border-top-color 0.3s ease, transform 0.3s var(--ease);
}

.page-products .download-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--accent-green);
}

.page-products .download-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.page-products .download-card h3 {
  margin: 0;
  font-size: 18px;
}

.page-products .download-card p {
  margin: 0 0 16px;
  color: var(--text-sub);
  line-height: 1.65;
  font-size: 14px;
}

.page-products .download-btn {
  width: 100%;
  padding: 12px 16px;
  border: none;
  background: var(--accent-green);
  color: #000;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 15px;
  cursor: pointer;
  position: relative;
  border-radius: 2px;
  animation: b-sports-btn-pulse 2.4s infinite;
  transition: background 0.3s ease, transform 0.3s var(--ease);
}

.page-products .download-btn:hover {
  transform: translateY(-2px);
  background: var(--accent-cyan);
  color: #000;
}

@keyframes b-sports-btn-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.45); }
  70%  { box-shadow: 0 0 0 12px rgba(57, 255, 20, 0); }
  100% { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0); }
}

.page-products .download-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%);
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--accent-cyan);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-products .download-btn:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

.page-products .download-note {
  margin-top: 24px;
  padding: 20px;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent-orange);
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.65;
}

.page-products .download-note p {
  margin: 0;
}

.page-products .download-note p + p {
  margin-top: 8px;
}

/* requirements */
.page-products .products-requirements {
  background: var(--bg-secondary);
  padding-top: 48px;
  padding-bottom: 56px;
}

.page-products .requirements-img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  margin-bottom: 28px;
  display: block;
}

.page-products .requirements-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-color);
}

.page-products .requirements-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .requirements-table th,
.page-products .requirements-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-body);
}

.page-products .requirements-table th {
  background: var(--bg-primary);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.page-products .requirements-table td:first-child {
  font-weight: 700;
  color: var(--text-main);
}

.page-products .requirements-table td:nth-child(2),
.page-products .requirements-table td:nth-child(3),
.page-products .requirements-table td:nth-child(4) {
  color: var(--text-sub);
}

.page-products .requirements-table tbody tr {
  transition: background 0.3s ease;
}

.page-products .requirements-table tbody tr:hover {
  background: rgba(0, 209, 255, 0.12);
}

/* mobile */
.page-products .products-mobile {
  padding-top: 56px;
  padding-bottom: 56px;
}

.page-products .mobile-layout {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-products .mobile-visual {
  max-width: 320px;
  width: 100%;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  line-height: 0;
}

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

.page-products .mobile-content h2 {
  margin: 10px 0 16px;
  font-size: 24px;
  line-height: 1.3;
}

.page-products .mobile-content p {
  margin: 0 0 16px;
  color: var(--text-sub);
  line-height: 1.65;
}

/* help */
.page-products .products-help {
  padding-top: 8px;
  padding-bottom: 64px;
}

.page-products .help-panel {
  padding: 24px;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent-green);
}

.page-products .help-copy h2 {
  margin: 10px 0 12px;
  font-size: 22px;
}

.page-products .help-copy p {
  margin: 0;
  color: var(--text-sub);
  line-height: 1.65;
}

.page-products .help-copy .mono {
  color: var(--accent-green);
  font-size: 14px;
}

.page-products .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* desktop */
@media (min-width: 768px) {
  .page-products .toc-list {
    grid-template-columns: repeat(4, 1fr);
    gap: 0 16px;
  }

  .page-products .features-layout {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-products .features-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .versions-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .page-products .versions-update {
    grid-template-columns: minmax(0, 2fr) 1fr;
    gap: 32px;
  }

  .page-products .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .mobile-layout {
    grid-template-columns: 320px 1fr;
    gap: 48px;
  }

  .page-products .mobile-visual {
    margin: 0;
  }

  .page-products .help-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .page-products .help-actions {
    margin-top: 0;
    flex-shrink: 0;
  }
}

@media (min-width: 1200px) {
  .page-products .versions-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .download-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .download-btn,
  .page-products .meta-item .status-dot {
    animation: none;
  }
}