/* === 车机壁纸 - 布局 === */

/* Header 导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  gap: 20px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  flex-shrink: 0;
}

.header-brand .brand-icon {
  width: 36px; height: 36px;
  background: var(--primary-gradient);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

.header-brand .brand-text {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-nav a {
  padding: 8px 16px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-fast);
}
.header-nav a:hover, .header-nav a.active {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* 搜索区域 */
.search-section {
  padding: var(--space-xl) 0;
  text-align: center;
}

.search-container {
  max-width: 600px;
  margin: 0 auto;
}

.search-title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 8px;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.search-subtitle {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 15px;
}

/* 筛选栏 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: var(--space-md);
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
  background: var(--bg-primary);
  padding-top: 8px;
}

.filter-chip {
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.filter-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.filter-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Footer */
.site-footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-light);
  text-align: center;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--primary); }

.footer-copy {
  color: var(--text-tertiary);
  font-size: 13px;
}

/* 页面通用 section */
.page-section {
  padding: var(--space-lg) 0;
}

.page-header {
  text-align: center;
  padding: var(--space-xl) 0 var(--space-md);
}
.page-header h1 {
  margin-bottom: 8px;
}
.page-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* 视图切换 */
.view-toggle {
  display: flex;
  gap: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 3px;
}

.view-toggle button {
  padding: 6px 10px;
  border-radius: calc(var(--radius) - 3px);
  background: transparent;
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
}

.view-toggle button.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* 移动端 Header 调整 */
@media (max-width: 640px) {
  .header-nav { gap: 2px; }
  .header-nav a { padding: 6px 10px; font-size: 13px; }
  .brand-text { display: none; }
  .search-title { font-size: 1.5rem; }
  .site-footer { padding-bottom: calc(var(--bottom-nav-height) + 24px); }
  .filter-bar { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .filter-bar::-webkit-scrollbar { display: none; }
}