/* ===== 页面专属：.page-products ===== */
.page-products {
  --brand: #00C4B4;
  --accent: #FF6B35;
  --bg-main: #1A1A2E;
  --bg-secondary: #16213E;
  --text-primary: #FFFFFF;
  --text-secondary: #B0BEC5;
  --glass: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.12);
  --border-highlight: #00C4B4;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: Georgia, 'Times New Roman', serif;
  --font-data: 'Courier New', monospace;
  --header-h: 62px;
  --max-w: 1280px;
  --gap: 24px;

  /* 手机模型专属变量 */
  --phone-width: 320px;
  --phone-height: 580px;
  --phone-border-radius: 36px;
  --phone-border-color: #3a3a5a;
  --phone-border-width: 8px;
  --phone-notch-w: 100px;
  --phone-notch-h: 24px;
  --home-indicator-w: 120px;

  max-width: var(--max-w);
  margin: 0 auto;
  padding: calc(var(--header-h) + 20px) var(--gap) 40px;
  background: linear-gradient(135deg, var(--bg-main) 0%, var(--bg-secondary) 80%);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  position: relative;
  min-height: 100vh;
}

/* 移动端优先：窄屏默认单列 */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding: 8px 0;
  border-bottom: 1px solid var(--glass-border);
}
.page-products .breadcrumb a {
  color: var(--brand);
  text-decoration: none;
  transition: opacity 0.2s;
}
.page-products .breadcrumb a:hover {
  opacity: 0.7;
}
.page-products .breadcrumb .sep {
  color: var(--text-secondary);
}
.page-products .breadcrumb [aria-current="page"] {
  color: var(--text-primary);
  font-weight: 600;
}

/* 手机模型舞台区 */
.page-products .phone-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-bottom: 48px;
  padding-top: 16px;
}
.page-products .phone-frame {
  position: relative;
  width: var(--phone-width);
  height: var(--phone-height);
  border-radius: var(--phone-border-radius);
  border: var(--phone-border-width) solid var(--phone-border-color);
  background: #000;
  box-shadow: 0 0 40px rgba(0, 196, 180, 0.25), 0 0 80px rgba(0, 196, 180, 0.08);
  overflow: hidden;
  flex-shrink: 0;
}
.page-products .phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: var(--phone-notch-w);
  height: var(--phone-notch-h);
  background: #1a1a2e;
  border-radius: 0 0 16px 16px;
  z-index: 5;
}
.page-products .phone-screen {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  position: relative;
}
.page-products .phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px 6px;
  font-size: 0.7rem;
  font-family: var(--font-data);
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}
.page-products .screen-content {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-products .screen-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
}
.page-products .screen-overlay-text {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
  pointer-events: none;
}
.page-products .overlay-brand {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 4px;
}
.page-products .overlay-slogan {
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--accent);
}
.page-products .phone-home-indicator {
  width: var(--home-indicator-w);
  height: 4px;
  background: rgba(255,255,255,0.3);
  border-radius: 2px;
  margin: 8px auto 12px;
}
.page-products .stage-caption {
  text-align: center;
}
.page-products .page-heading {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--brand);
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}
.page-products .stage-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.5;
}

/* 通用章节样式 */
.page-products .section-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 12px;
}
.page-products .section-number {
  font-family: var(--font-data);
  font-size: 1rem;
  color: var(--brand);
  opacity: 0.6;
  flex-shrink: 0;
}
.page-products .section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.page-products .features-section,
.page-products .guide-section,
.page-products .download-section {
  margin-bottom: 56px;
}

/* 功能卡片网格（移动端单列） */
.page-products .features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-products .feature-card {
  background: var(--glass);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 20px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}
.page-products .feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 196, 180, 0.15);
}
.page-products .card-icon-wrap {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
}
.page-products .card-icon {
  display: block;
}
.page-products .card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--brand);
  margin: 0 0 8px;
}
.page-products .card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}
.page-products .card-preview {
  border-radius: 8px;
  overflow: hidden;
  background: #000;
}
.page-products .card-preview-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 指南步骤（折叠交互） */
.page-products .guide-intro {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}
.page-products .guide-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-products .step-card {
  background: var(--glass);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
}
.page-products .step-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1rem;
  text-align: left;
  transition: background 0.2s;
}
.page-products .step-toggle:hover {
  background: rgba(255,255,255,0.04);
}
.page-products .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand);
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.page-products .step-label {
  flex: 1;
  font-weight: 600;
}
.page-products .step-arrow {
  font-size: 0.7rem;
  transition: transform 0.3s;
  color: var(--accent);
}
.page-products .step-card[aria-expanded="true"] .step-arrow,
.page-products .step-toggle[aria-expanded="true"] .step-arrow {
  transform: rotate(180deg);
}
.page-products .step-detail {
  padding: 0 20px 16px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}
.page-products .step-detail[hidden] {
  display: none;
}
.page-products .step-img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 8px;
  margin-top: 12px;
  display: block;
  object-fit: cover;
}

/* 下载入口区 */
.page-products .download-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.page-products .download-qr {
  text-align: center;
}
.page-products .qr-img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
  padding: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.page-products .qr-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 8px;
}
.page-products .download-notes {
  text-align: center;
  max-width: 480px;
}
.page-products .note-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 12px;
}
.page-products .note-small {
  font-size: 0.8rem;
  opacity: 0.7;
}
.page-products .download-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
}
.page-products .btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 24px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  cursor: default;
}
.page-products .btn-glass {
  background: var(--glass);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}
.page-products .btn-glass:hover {
  background: rgba(255,255,255,0.12);
}

/* 底部关联内链 */
.page-products .related-links {
  border-top: 1px solid var(--glass-border);
  padding-top: 24px;
  margin-top: 24px;
}
.page-products .related-heading {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.page-products .related-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.page-products .related-list li {
  margin: 0;
}
.page-products .related-list a {
  color: var(--brand);
  text-decoration: none;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.page-products .related-list a:hover {
  opacity: 0.7;
}

/* 桌面端媒体查询 */
@media (min-width: 768px) {
  .page-products {
    padding-left: calc(var(--gap) * 2);
    padding-right: calc(var(--gap) * 2);
  }
  .page-products .phone-stage {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 48px;
  }
  .page-products .stage-caption {
    text-align: left;
    max-width: 400px;
  }
  .page-products .page-heading {
    font-size: 3.2rem;
  }
  .page-products .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
  .page-products .download-content {
    flex-direction: row;
    justify-content: center;
    gap: 48px;
    align-items: flex-start;
  }
  .page-products .download-notes {
    text-align: left;
  }
  .page-products .related-list {
    gap: 24px;
  }
}

/* 大桌面端宽度限制 */
@media (min-width: 1024px) {
  .page-products {
    padding-top: calc(var(--header-h) + 32px);
  }
  .page-products .phone-frame {
    --phone-width: 360px;
    --phone-height: 640px;
  }
}

/* 图片响应式 */
.page-products img {
  max-width: 100%;
  height: auto;
}
.page-products .card-preview-img,
.page-products .step-img,
.page-products .qr-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}