.page-products {
  --device-width: 280px;
  --device-height: 560px;
  --device-radius: 36px;
  --device-bg: #0B1A3A;
  --screen-color: #112240;
  --notch-size: 60px 24px;
  --home-size: 32px;
}

/* 面包屑 */
.page-products .breadcrumb {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.page-products .breadcrumb a {
  color: var(--accent);
  text-decoration: none;
}
.page-products .breadcrumb a:hover {
  text-decoration: underline;
}
.page-products .breadcrumb .sep {
  margin: 0 0.5rem;
}

/* 设备框 */
.page-products .device-frame-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem;
  background: var(--primary-gradient);
  position: relative;
  overflow: hidden;
}
.page-products .device-frame-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 100%;
  background: radial-gradient(circle at 70% 30%, rgba(91,45,142,0.3), transparent 60%);
  transform: rotate(15deg);
  pointer-events: none;
}
.page-products .device-frame {
  width: var(--device-width);
  height: var(--device-height);
  background: var(--device-bg);
  border-radius: var(--device-radius);
  border: 3px solid var(--accent);
  box-shadow: 0 0 30px rgba(212,175,55,0.2);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: device-float 6s ease-in-out infinite;
}
@keyframes device-float {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}
.page-products .device-notch {
  position: absolute;
  top: 12px;
  width: var(--notch-size);
  height: 24px;
  background: #000;
  border-radius: 12px;
  z-index: 2;
}
.page-products .device-screen {
  width: calc(100% - 24px);
  height: calc(100% - 80px);
  background: var(--screen-color);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow: hidden;
}
.page-products .screen-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}
.page-products .screen-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-products .data-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}
.page-products .data-bar {
  flex: 1;
  height: 10px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  border-radius: 5px;
  opacity: 0.7;
}
.page-products .device-home {
  position: absolute;
  bottom: 16px;
  width: var(--home-size);
  height: var(--home-size);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
}
.page-products .device-caption {
  margin-top: 1rem;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  font-family: var(--font-heading);
}

/* 功能卡片区域 */
.page-products .features-section {
  padding: 2rem 1rem;
}
.page-products .features-section h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
}
.page-products .features-grid {
  display: grid;
  gap: 1.5rem;
}
.page-products .feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.page-products .feature-card[open] {
  box-shadow: var(--shadow-card);
}
.page-products .feature-card summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  cursor: pointer;
  list-style: none;
  position: relative;
}
.page-products .feature-card summary::-webkit-details-marker {
  display: none;
}
.page-products .feature-card summary::after {
  content: '+';
  position: absolute;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform var(--transition);
}
.page-products .feature-card[open] summary::after {
  transform: rotate(45deg);
}
.page-products .feature-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  min-width: 3rem;
}
.page-products .feature-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}
.page-products .feature-content {
  padding: 0 1rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.page-products .feature-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.page-products .feature-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  text-align: center;
}

/* 下载区域 */
.page-products .download-section {
  padding: 2rem 1rem;
  background: var(--primary-gradient);
  position: relative;
  text-align: center;
}
.page-products .download-section h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}
.page-products .download-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.page-products .download-btn {
  min-width: 180px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  transition: all var(--transition);
  position: relative;
  z-index: 1;
}
.page-products .download-btn.android::before {
  content: '▽ ';
}
.page-products .download-btn.ios::before {
  content: '○ ';
}
.page-products .download-btn:hover {
  box-shadow: 0 0 20px rgba(212,175,55,0.6);
  transform: scale(1.02);
}
.page-products .download-bg {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 0;
  opacity: 0.2;
  pointer-events: none;
}
.page-products .download-bg img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
}
.page-products .download-tip {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 版本说明 */
.page-products .version-section {
  padding: 2rem 1rem;
  background: var(--background);
}
.page-products .version-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
}
.page-products .version-section p {
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 0.75rem;
}
.page-products .version-section strong {
  color: var(--text-primary);
}
.page-products .version-links {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.page-products .version-links a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.page-products .version-links a:hover {
  border-bottom-color: var(--accent);
}

/* 响应式桌面端 */
@media (min-width: 768px) {
  .page-products .breadcrumb {
    padding: 0.5rem 2rem;
  }
  .page-products .device-frame-section {
    padding: 4rem 2rem;
  }
  .page-products .features-section {
    padding: 3rem 2rem;
  }
  .page-products .features-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .page-products .feature-content {
    flex-direction: row;
  }
  .page-products .feature-content img {
    width: 160px;
    height: 288px;
  }
  .page-products .download-section {
    padding: 4rem 2rem;
  }
  .page-products .version-section {
    padding: 3rem 2rem;
  }
  .page-products .version-links {
    gap: 0.5rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-products .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-products .feature-content {
    flex-direction: column;
  }
  .page-products .feature-content img {
    width: 240px;
    height: 432px;
  }
}