/* =============================================
   PAGE: products (APP下载)
   作用域: .page-products
   移动端优先 + 桌面媒体查询
   ============================================= */

/* --- 变量定义（仅限本页） --- */
.page-products {
  --pp-card-min: 280px;
  --pp-strip-skew: -3deg;
  --pp-qr-size: 120px;
  --pp-dot-size: 6px;
  --pp-dot-large: 14px;
  position: relative;
  z-index: 1;
  padding: 0 var(--spacing-unit, 16px) var(--section-gap, 48px);
  max-width: var(--content-max, 1200px);
  margin: 0 auto;
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  color: var(--neutral-light, #E0E6ED);
}

/* --- 动态背景 --- */
.page-products__bg-wrap {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}
.page-products__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.15;
  filter: blur(4px) saturate(1.2);
}
.page-products__bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,29,58,0.92) 30%, rgba(255,107,53,0.18) 100%);
}

/* --- 斜切带状标题 --- */
.page-products__strip {
  position: relative;
  margin: 0 calc(-1 * var(--spacing-unit, 16px)) 40px;
  padding: 48px var(--spacing-unit, 16px) 40px;
  background: var(--accent1, #FF6B35);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), 0 100%);
  z-index: 1;
}
.page-products__strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.25) 0%, transparent 60%);
  clip-path: inherit;
  pointer-events: none;
}
.page-products__breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.page-products__breadcrumb a {
  color: var(--neutral-light, #E0E6ED);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms);
}
.page-products__breadcrumb a:hover,
.page-products__breadcrumb a:focus-visible {
  border-color: var(--neutral-light, #E0E6ED);
}
.page-products__breadcrumb-sep {
  opacity: 0.5;
}
.page-products__strip-title {
  position: relative;
  z-index: 1;
  font-family: var(--heading-font, 'Arial Black', 'Impact', sans-serif);
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin: 0 0 8px;
  line-height: 1.1;
  text-shadow: 4px 4px 0 rgba(0,0,0,0.3);
}
.page-products__strip-sub {
  position: relative;
  z-index: 1;
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 1.05rem;
  color: rgba(255,255,255,0.92);
  max-width: 580px;
  line-height: 1.5;
  margin: 0;
}

/* --- 下载卡片网格 --- */
.page-products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

/* --- 平台卡片 --- */
.page-products__card {
  background: var(--surface-elevated, #122645);
  border: var(--border-thick, 4px solid var(--line-divider, #2A3F66));
  box-shadow: var(--shadow-heavy, 8px 8px 0 rgba(0,0,0,0.4));
  padding: 28px 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms),
              box-shadow var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms);
}
.page-products__card:hover,
.page-products__card:focus-within {
  transform: translateY(-4px);
  box-shadow: 12px 12px 0 rgba(0,0,0,0.5);
}
.page-products__card-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.page-products__card-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
  border-radius: 18px;
  box-shadow: 0 0 0 3px var(--line-divider, #2A3F66), 4px 4px 0 rgba(0,0,0,0.3);
  background: var(--primary, #0B1D3A);
}
.page-products__card-name {
  font-family: var(--heading-font, 'Arial Black', 'Impact', sans-serif);
  font-size: 1.35rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--neutral-light, #E0E6ED);
  margin: 0;
}
.page-products__card-desc {
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--meta-color, #8899AA);
  margin: 0 0 20px;
  max-width: 320px;
}

/* --- QR码 --- */
.page-products__qr-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.page-products__qr {
  position: relative;
  width: var(--pp-qr-size, 120px);
  height: var(--pp-qr-size, 120px);
  background: #fff;
  border: 3px solid var(--line-divider, #2A3F66);
  box-shadow: 4px 4px 0 rgba(0,0,0,0.25);
  transition: transform var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms),
              box-shadow var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms);
  cursor: help;
}
.page-products__qr:hover,
.page-products__qr:focus-visible {
  transform: scale(1.8);
  box-shadow: 8px 8px 0 rgba(0,0,0,0.35);
  z-index: 10;
  position: relative;
}
.page-products__qr-dot {
  position: absolute;
  width: var(--pp-dot-size, 6px);
  height: var(--pp-dot-size, 6px);
  background: var(--primary, #0B1D3A);
  border-radius: 1px;
}
.page-products__qr-dot.qr-dot--large {
  width: var(--pp-dot-large, 14px);
  height: var(--pp-dot-large, 14px);
  border: 2px solid var(--primary, #0B1D3A);
  background: transparent;
}
.page-products__qr-label {
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 0.75rem;
  color: var(--meta-color, #8899AA);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* --- 下载按钮 --- */
.page-products__card-btn {
  width: 100%;
  max-width: 260px;
  text-align: center;
  font-family: var(--heading-font, 'Arial Black', 'Impact', sans-serif);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 14px 20px;
  background: var(--accent1, #FF6B35);
  color: #fff;
  border: 4px solid var(--accent1, #FF6B35);
  box-shadow: var(--shadow-light, 4px 4px 0 rgba(0,0,0,0.25));
  transition: background var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms),
              box-shadow var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms);
  text-decoration: none;
}
.page-products__card-btn:hover,
.page-products__card-btn:focus-visible {
  background: transparent;
  color: var(--accent1, #FF6B35);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.35);
}
.page-products__card-btn:active {
  transform: translateY(2px);
  box-shadow: 2px 2px 0 rgba(0,0,0,0.25);
}

/* --- 功能亮点区 --- */
.page-products__features {
  margin-bottom: 48px;
}
.page-products__features-strip {
  position: relative;
  margin: 0 calc(-1 * var(--spacing-unit, 16px)) 32px;
  padding: 20px var(--spacing-unit, 16px) 18px;
  background: var(--accent2, #00C896);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), 0 100%);
}
.page-products__features-title {
  font-family: var(--heading-font, 'Arial Black', 'Impact', sans-serif);
  font-size: 1.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary, #0B1D3A);
  margin: 0;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.08);
}
.page-products__features-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}
.page-products__phone-area {
  display: flex;
  justify-content: center;
}
.page-products__phone-img {
  width: 100%;
  max-width: 200px;
  height: auto;
  object-fit: contain;
  border: var(--border-thick, 4px solid var(--line-divider, #2A3F66));
  box-shadow: var(--shadow-heavy, 8px 8px 0 rgba(0,0,0,0.4));
  background: var(--primary, #0B1D3A);
}

/* --- 功能列表 --- */
.page-products__feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-products__feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  background: var(--neutral-dark, #1A2A4A);
  border-left: 4px solid var(--accent1, #FF6B35);
  box-shadow: var(--shadow-light, 4px 4px 0 rgba(0,0,0,0.25));
  transition: border-color var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms),
              transform var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms);
}
.page-products__feature-item:hover {
  border-left-color: var(--accent2, #00C896);
  transform: translateX(4px);
}
.page-products__feature-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent1, #FF6B35);
  margin-top: 2px;
}
.page-products__feature-icon svg {
  width: 22px;
  height: 22px;
}
.page-products__feature-name {
  font-family: var(--heading-font, 'Arial Black', 'Impact', sans-serif);
  font-size: 1rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--neutral-light, #E0E6ED);
  display: block;
  margin-bottom: 4px;
}
.page-products__feature-desc {
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--meta-color, #8899AA);
  margin: 0;
}

/* --- 手势操作图示 --- */
.page-products__gesture-area {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.page-products__gesture-img {
  width: 100%;
  max-width: 540px;
  height: auto;
  object-fit: contain;
  border: var(--border-thick, 4px solid var(--line-divider, #2A3F66));
  box-shadow: var(--shadow-heavy, 8px 8px 0 rgba(0,0,0,0.4));
  background: var(--neutral-dark, #1A2A4A);
}
.page-products__gesture-caption {
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 0.88rem;
  color: var(--meta-color, #8899AA);
  font-style: italic;
  text-align: center;
  max-width: 480px;
  margin: 0;
}

/* --- 底部站点导航 --- */
.page-products__sitemap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 24px;
  padding: 28px 0 8px;
  border-top: 4px solid var(--line-divider, #2A3F66);
}
.page-products__sitemap-link {
  font-family: var(--body-font, Georgia, 'Times New Roman', serif);
  font-size: 0.9rem;
  color: var(--meta-color, #8899AA);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms),
              border-color var(--transition, cubic-bezier(0.25,0.46,0.45,0.94) 300ms);
}
.page-products__sitemap-link:hover,
.page-products__sitemap-link:focus-visible {
  color: var(--accent1, #FF6B35);
  border-color: var(--accent1, #FF6B35);
}

/* =============================================
   桌面端媒体查询 (min-width: 768px)
   ============================================= */
@media (min-width: 768px) {
  .page-products {
    padding: 0 32px var(--section-gap, 48px);
  }
  .page-products__strip {
    margin: 0 -32px 48px;
    padding: 64px 48px 52px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), 0 100%);
  }
  .page-products__strip-title {
    font-size: 3.2rem;
  }
  .page-products__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .page-products__card {
    padding: 32px 28px 36px;
  }
  .page-products__card-icon {
    width: 96px;
    height: 96px;
  }
  .page-products__features-body {
    grid-template-columns: 1fr 1.4fr;
    gap: 36px;
  }
  .page-products__phone-area {
    justify-content: flex-end;
  }
  .page-products__phone-img {
    max-width: 220px;
  }
  .page-products__feature-list {
    gap: 18px;
  }
  .page-products__features-strip {
    margin: 0 -32px 36px;
    padding: 24px 48px 22px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), 0 100%);
  }
  .page-products__features-title {
    font-size: 2rem;
  }
  .page-products__gesture-area {
    margin-top: 40px;
  }
}

/* =============================================
   大桌面端媒体查询 (min-width: 1024px)
   ============================================= */
@media (min-width: 1024px) {
  .page-products__strip {
    padding: 72px 64px 56px;
  }
  .page-products__strip-title {
    font-size: 3.8rem;
  }
  .page-products__card {
    padding: 40px 32px 40px;
  }
  .page-products__card-icon {
    width: 110px;
    height: 110px;
  }
  .page-products__features-body {
    gap: 48px;
  }
  .page-products__phone-img {
    max-width: 250px;
  }
}