/* ============================================
   Alight - 官网样式（暗黑主题）
   匹配真实 App 暗色 UI，基于 App 的 theme.css 暗色变量
   ============================================ */

/* CSS Variables - 匹配真实 App 暗色主题 */
:root {
  /* 品牌主色 - 与真实 App 暗色主题一致 */
  --primary: #60a5fa;
  --primary-light: #93bbfd;
  --primary-dark: #3b82f6;
  --primary-bg: rgba(59, 130, 246, 0.15);
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);

  /* 功能色 */
  --success: #4ade80;
  --success-bg: rgba(34, 197, 94, 0.15);
  --warning: #fbbf24;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --danger: #f87171;
  --danger-bg: rgba(239, 68, 68, 0.15);

  /* 背景色 - 暗色主题 */
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #16213e;
  --bg-surface: #1f2b47;
  --bg-surface-hover: #253552;

  /* 文字色 */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --text-hint: #475569;

  /* 边框色 */
  --border-color: #2d3748;
  --border-light: #1e293b;

  /* 统计卡片颜色 - 与真实 App 暗色 theme.css 完全一致 */
  --stat-cache-bg: rgba(234, 88, 12, 0.15);
  --stat-cache-color: #fb923c;
  --stat-health-bg: rgba(59, 130, 246, 0.15);
  --stat-health-color: #60a5fa;
  --stat-count-bg: rgba(147, 51, 234, 0.15);
  --stat-count-color: #c084fc;
  --stat-space-bg: rgba(34, 197, 94, 0.15);
  --stat-space-color: #4ade80;

  /* 阴影 - 暗色下更重 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(26, 26, 46, 0.95);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
}

.logo-icon {
  font-size: 22px;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-download-btn {
  padding: 8px 20px;
  background: var(--primary-gradient);
  color: white;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.nav-download-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(96, 165, 250, 0.35);
}

/* 语言切换按钮 */
.lang-switch {
  padding: 6px 14px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.5px;
}

.lang-switch:hover {
  background: var(--bg-surface-hover);
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 24px 60px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 60px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  flex: 1;
  max-width: 520px;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--primary-bg);
  border: 1px solid rgba(96, 165, 250, 0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 28px;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(96, 165, 250, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(96, 165, 250, 0.45);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-xl {
  padding: 18px 40px;
  font-size: 17px;
  border-radius: 12px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--text-tertiary);
}

.meta-divider {
  opacity: 0.4;
}

/* Hero Visual - Mac Window Mockup (暗色风格) */
.hero-visual {
  flex: 1;
  max-width: 600px;
  z-index: 1;
}

.mac-window {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow:
    0 25px 80px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(96, 165, 250, 0.1);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.mac-window-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: #0f172a;
  border-bottom: 1px solid var(--border-color);
}

.window-dots {
  display: flex;
  gap: 7px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.window-title {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-left: 8px;
}

.mac-window-body {
  display: flex;
  min-height: 480px;
  background: var(--bg-secondary);
}

/* ===== Hero DeepClean Mock (完全匹配真实 StatusOverview + DeepCleanCard) ===== */
.mock-deepclean {
  flex: 1;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.dc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.dc-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}
.dc-scan-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: default;
  box-shadow: 0 2px 8px rgba(96, 165, 250, 0.25);
}

/* 四宫格统计卡片 - 使用真实 App 暗色颜色变量 */
.dc-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.dc-stat-card {
  padding: 16px 12px;
  border-radius: var(--radius-md);
  text-align: center;
  transition: all 0.2s ease;
  cursor: default;
}
.dc-stat-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.1);
}
.dc-stat-value {
  display: block;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.2;
}
.dc-stat-label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 统计卡片颜色 - 完全匹配真实 App 暗色 theme.css */
.stat-cache { background: var(--stat-cache-bg); }
.stat-cache .dc-stat-value { color: var(--stat-cache-color); }
.stat-health { background: var(--stat-health-bg); }
.health-good { color: var(--stat-health-color) !important; }
.stat-count { background: var(--stat-count-bg); }
.stat-count .dc-stat-value { color: var(--stat-count-color); }
.stat-space { background: var(--stat-space-bg); }
.stat-space .dc-stat-value { color: var(--stat-space-color); }

/* CleanCardGrid - 匹配真实 DeepCleanCard 暗色样式 */
.dc-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  flex: 1;
}
.dc-clean-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: default;
  transition: all 0.2s ease;
}
.dc-clean-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

/* 图标背景 - 匹配真实 cleanItemIconConfig 暗色 */
.card-icon-bg {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.card-icon-blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.card-icon-green { background: rgba(34, 197, 94, 0.2); color: #4ade80; }
.card-icon-orange { background: rgba(234, 88, 12, 0.2); color: #fb923c; }
.card-icon-purple { background: rgba(147, 51, 234, 0.2); color: #c084fc; }

.card-info { flex: 1; min-width: 0; }
.card-name { display: block; font-size: 14px; font-weight: 600; color: var(--text-primary); }
.card-desc { display: block; font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.card-right { text-align: right; min-width: 80px; flex-shrink: 0; }
.card-size { display: block; font-size: 15px; font-weight: 700; color: var(--text-primary); }
.card-count { display: block; font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.card-btn {
  margin-top: 6px;
  padding: 4px 14px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: default;
}

/* Feature card enhancements */
.feature-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary-bg);
  border: 1px solid rgba(96, 165, 250, 0.3);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 14px;
}
.feature-card.featured {
  border-color: rgba(96, 165, 250, 0.35);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(8, 145, 178, 0.05));
}
.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.tag {
  padding: 3px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 11px;
  color: var(--text-secondary);
}

/* ============================================
   Features Section
   ============================================ */
.features {
  padding: 120px 0;
  position: relative;
  background: var(--bg-primary);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: var(--bg-surface);
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Highlights Section
   ============================================ */
.highlights {
  padding: 100px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.highlight-item {
  text-align: center;
  padding: 32px 20px;
}

.highlight-number {
  font-size: 48px;
  font-weight: 900;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.9;
}

.highlight-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.highlight-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Screenshots Section
   ============================================ */
.screenshots {
  padding: 120px 0;
  background: var(--bg-primary);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.screenshot-card {
  text-align: center;
}

.screenshot-mock {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 16px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.screenshot-card:hover .screenshot-mock {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-lg);
}

.mock-mac-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #0f172a;
  border-bottom: 1px solid var(--border-color);
}

.mock-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.mock-dot.red { background: #ff5f57; }
.mock-dot.yellow { background: #febc2e; }
.mock-dot.green { background: #28c840; }

.mock-body {
  padding: 16px 18px;
  /* 调整高度比例 - 匹配真实 App 窗口比例 (1080 x 680 = 约 1.59:1) */
  min-height: 280px;
  aspect-ratio: 1080 / 680;
  background: var(--bg-secondary);
}

.screenshot-card p {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* ===== Screenshot: DeepClean Preview (暗色) ===== */
.dc-preview-body { padding: 14px 16px !important; min-height: auto !important; aspect-ratio: auto; }
.dc-prev-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.dc-prev-title { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.dc-prev-btn {
  font-size: 12px; font-weight: 600; color: var(--primary);
  background: var(--primary-bg); padding: 5px 14px; border-radius: 6px;
}
.dc-prev-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px;
}
.dc-ps {
  text-align: center; padding: 12px 8px; border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}
.dc-ps b { display: block; font-size: 16px; font-weight: 800; }
.dc-ps .health-good { color: var(--stat-health-color); }
.dc-ps small { display: block; font-size: 10px; color: var(--text-secondary); margin-top: 3px; }

/* 深度清理卡片预览 - 匹配真实 DeepCleanCard 暗色 */
.dc-prev-cards { display: flex; flex-direction: column; gap: 8px; }
.dcp-card {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}
.dcp-card:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.dcp-icon {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.dcp-icon-blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.dcp-icon-green { background: rgba(34, 197, 94, 0.2); color: #4ade80; }
.dcp-icon-orange { background: rgba(234, 88, 12, 0.2); color: #fb923c; }
.dcp-icon-purple { background: rgba(147, 51, 234, 0.2); color: #c084fc; }
.dcp-info { flex: 1; min-width: 0; }
.dcp-info b { display: block; font-size: 13px; font-weight: 600; color: var(--text-primary); }
.dcp-info span { display: block; font-size: 11px; color: var(--text-secondary); margin-top: 1px; }
.dcp-meta { text-align: right; min-width: 70px; flex-shrink: 0; }
.dcp-meta b { display: block; font-size: 13px; font-weight: 700; color: var(--text-primary); }
.dcp-meta span { display: block; font-size: 10px; color: var(--text-tertiary); }
.dcp-arrow { font-size: 18px; color: var(--text-tertiary); flex-shrink: 0; }

/* ===== Screenshot: QuickClean Preview (暗色) ===== */
.qc-preview-body { padding: 14px 16px !important; min-height: auto !important; aspect-ratio: auto; }
.qc-prev-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.qc-prev-title { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.qc-prev-btn {
  font-size: 12px; font-weight: 600; color: var(--primary);
  background: var(--primary-bg); padding: 5px 14px; border-radius: 6px;
}
.qc-prev-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px;
}
.qc-ps {
  text-align: center; padding: 12px 8px; border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}
.qc-ps b { display: block; font-size: 16px; font-weight: 800; }
.qc-ps small { display: block; font-size: 10px; color: var(--text-secondary); margin-top: 3px; }

/* 快速清理卡片预览 - 匹配真实 QuickCleanCard 暗色 */
.qc-prev-cards { display: flex; flex-direction: column; gap: 8px; }
.qcp-card {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}
.qcp-card:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.qcp-icon {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.qcp-icon-blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.qcp-icon-orange { background: rgba(234, 88, 12, 0.2); color: #fb923c; }
.qcp-icon-green { background: rgba(34, 197, 94, 0.2); color: #4ade80; }
.qcp-icon-red { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.qcp-info { flex: 1; min-width: 0; }
.qcp-info b { display: block; font-size: 13px; font-weight: 600; color: var(--text-primary); }
.qcp-info span { display: block; font-size: 11px; color: var(--text-secondary); margin-top: 1px; }
.qcp-meta { text-align: right; min-width: 65px; flex-shrink: 0; }
.qcp-meta b { display: block; font-size: 13px; font-weight: 700; color: var(--text-primary); }
.qcp-meta span { display: block; font-size: 10px; color: var(--text-tertiary); }
.qcp-actions { display: flex; gap: 6px; flex-shrink: 0; }
.qcp-btn-preview {
  padding: 4px 10px; background: var(--bg-surface-hover); color: var(--text-secondary);
  border: 1px solid var(--border-color); border-radius: 6px;
  font-size: 11px; font-weight: 500; cursor: default;
}
.qcp-btn-clean {
  padding: 4px 10px; background: var(--success); color: white;
  border: none; border-radius: 6px;
  font-size: 11px; font-weight: 600; cursor: default;
}

/* ===== Screenshot: AppManage Preview (暗色) ===== */
.am-preview-body { padding: 12px 14px !important; min-height: auto !important; aspect-ratio: auto; }
.am-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color); margin-bottom: 10px;
}
.am-total { font-size: 12px; color: var(--text-secondary); }
.am-sort-group { display: flex; align-items: center; gap: 6px; }
.am-sort-label { font-size: 11px; color: var(--text-tertiary); }
.am-sort-select {
  font-size: 12px; font-weight: 600; color: var(--text-primary);
  padding: 3px 8px; background: var(--bg-surface-hover); border-radius: 4px;
}
.am-sort-order {
  font-size: 11px; color: var(--text-tertiary);
  padding: 3px 8px; background: var(--bg-surface-hover); border-radius: 4px;
}
.am-app-list { display: flex; flex-direction: column; gap: 1px; }
.am-app-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; background: var(--bg-surface); border-radius: 0;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.15s ease;
}
.am-app-row:first-child { border-radius: 10px 10px 0 0; }
.am-app-row:last-child { border-radius: 0 0 10px 10px; border-bottom: none; }
.am-app-row:hover { background: var(--bg-surface-hover); }
.am-app-icon { font-size: 26px; flex-shrink: 0; }
.am-app-info { flex: 1; min-width: 0; }
.am-app-name { display: block; font-size: 13px; font-weight: 600; color: var(--text-primary); }
.am-app-path { display: block; font-size: 11px; color: var(--text-tertiary); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.am-app-size { font-size: 13px; font-weight: 700; color: var(--primary); flex-shrink: 0; }
.am-uninstall-btn {
  padding: 5px 14px; background: var(--primary); color: white;
  border: none; border-radius: 6px;
  font-size: 11px; font-weight: 600; cursor: default; flex-shrink: 0;
}

/* ===== Screenshot: StartupManager Preview (暗色) ===== */
.su-preview-body { padding: 12px 14px !important; min-height: auto !important; aspect-ratio: auto; }

/* 页面 Header Banner - 匹配真实 page-header 样式 */
.su-page-header, .pm-page-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; background: var(--primary-gradient);
  border-radius: 10px; color: white; margin-bottom: 12px;
}
.su-header-icon, .pm-header-icon { font-size: 28px; opacity: 0.9; }
.su-header-content, .pm-header-content { flex: 1; }
.su-header-title, .pm-header-title { display: block; font-size: 16px; font-weight: 700; }
.su-header-desc, .pm-header-desc { display: block; font-size: 11px; opacity: 0.85; margin-top: 2px; }
.pm-header-actions { display: flex; gap: 8px; }
.pm-btn-refresh {
  padding: 5px 12px; background: rgba(255,255,255,0.2); color: white;
  border: 1px solid rgba(255,255,255,0.3); border-radius: 6px;
  font-size: 11px; font-weight: 600; cursor: default;
}
.pm-btn-kill {
  padding: 5px 12px; background: rgba(239,68,68,0.9); color: white;
  border: none; border-radius: 6px;
  font-size: 11px; font-weight: 600; cursor: default;
}

/* 类型 Tab 切换 - 匹配真实 kind-tabs */
.su-tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.su-tab {
  padding: 6px 16px; border-radius: 8px; font-size: 12px; font-weight: 600;
  background: var(--bg-surface); color: var(--text-secondary);
  border: 1px solid var(--border-color); cursor: default;
  transition: all 0.2s ease;
}
.su-tab.active { background: var(--primary); color: white; border-color: var(--primary); }

/* 筛选卡片 - 匹配真实 filter-card */
.su-filter-card {
  background: var(--bg-surface); border: 1px solid var(--border-color);
  border-radius: 10px; padding: 10px 14px; margin-bottom: 10px;
}
.su-radio-group { display: flex; gap: 6px; }
.su-radio {
  padding: 4px 14px; border-radius: 6px; font-size: 12px; color: var(--text-secondary);
  background: var(--bg-surface-hover); cursor: default; border: 1px solid var(--border-color);
}
.su-radio.active {
  background: var(--primary-bg); color: var(--primary);
  border-color: var(--primary);
}

/* 启动项列表 - 匹配真实 StartupItemCard */
.su-prev-list { display: flex; flex-direction: column; gap: 8px; }
.su-item {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}
.su-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.su-item.disabled { opacity: 0.55; }
.su-item-icon { font-size: 26px; flex-shrink: 0; }
.su-item-info { flex: 1; min-width: 0; }
.su-item-name { font-size: 13px; font-weight: 600; color: var(--text-primary); display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.su-item-path { font-size: 11px; color: var(--text-tertiary); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px; display: block; }

/* 徽章 - 匹配真实 kind-badge / category-badge / advice-badge */
.su-kind {
  font-size: 9px; font-weight: 700; padding: 2px 7px; border-radius: 4px;
  text-transform: uppercase; letter-spacing: 0.3px; color: white;
}
.su-kind.login { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.su-kind.bg { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.su-cat {
  font-size: 9px; font-weight: 600; padding: 2px 7px; border-radius: 4px;
  background: var(--primary-bg); color: var(--primary); border: 1px solid rgba(96,165,250,0.3);
}
.su-cat-warn {
  font-size: 9px; font-weight: 600; padding: 2px 7px; border-radius: 4px;
  background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(251,191,36,0.3);
}

/* 操作按钮区 - 匹配真实 item-actions */
.su-item-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.su-delete-btn {
  width: 30px; height: 30px; border-radius: 8px;
  background: transparent; border: none;
  color: var(--text-tertiary); cursor: default;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s ease;
}
.su-delete-btn:hover { background: var(--danger-bg); color: var(--danger); }

/* 开关 - 匹配真实 toggle-btn */
.su-toggle {
  width: 42px; height: 24px; border-radius: 12px; background: var(--text-hint);
  position: relative; flex-shrink: 0; cursor: default; transition: background 0.25s;
}
.su-toggle::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; border-radius: 50%; background: white;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transition: transform 0.25s cubic-bezier(0.4,0,0.2,1);
}
.su-toggle.on { background: var(--primary); }
.su-toggle.on::after { transform: translateX(18px); }
.su-toggle.off { background: var(--text-hint); }

/* ===== Screenshot: ProcessManager Preview (暗色) ===== */
.pm-preview-body { padding: 12px 14px !important; min-height: auto !important; aspect-ratio: auto; }

/* 工具栏 Tab + 搜索 - 匹配真实 toolbar */
.pm-toolbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color); margin-bottom: 10px;
}
.pm-tabs { display: flex; gap: 4px; }
.pm-tab {
  padding: 5px 12px; border-radius: 6px; font-size: 12px; font-weight: 500;
  color: var(--text-secondary); cursor: default; transition: all 0.2s;
}
.pm-tab.active { color: var(--primary); font-weight: 600; background: var(--primary-bg); }
.pm-tab-count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 17px; height: 17px; padding: 0 5px;
  font-size: 10px; font-weight: 500; color: var(--text-tertiary);
  background: var(--border-color); border-radius: 9px; margin-left: 4px;
}
.pm-search {
  display: flex; align-items: center; gap: 6px; margin-left: auto;
  padding: 5px 12px; background: var(--bg-surface-hover); border-radius: 6px;
  border: 1px solid var(--border-color); font-size: 12px; color: var(--text-tertiary);
  min-width: 140px;
}
.pm-search svg { flex-shrink: 0; opacity: 0.5; }

/* 进程列表 - 匹配真实 process-list + process-item */
.pm-list { display: flex; flex-direction: column; gap: 8px; }
.pm-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
  cursor: default;
}
.pm-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.pm-item.selected { border-color: var(--primary); background: var(--primary-bg); }

.pm-left { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.pm-checkbox {
  width: 18px; height: 18px; border-radius: 4px; border: 2px solid var(--border-color);
  flex-shrink: 0; cursor: default; transition: all 0.15s;
}
.pm-checkbox.checked {
  background: var(--primary); border-color: var(--primary);
  position: relative;
}
.pm-checkbox.checked::after {
  content: ''; position: absolute; top: 2px; left: 5px;
  width: 5px; height: 9px; border: solid white; border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.pm-picon { font-size: 24px; flex-shrink: 0; }
.pm-info { min-width: 0; flex: 1; }
.pm-name { font-size: 13px; font-weight: 500; color: var(--text-primary); display: flex; align-items: center; gap: 6px; }
.pm-tag {
  font-size: 10px; font-weight: 500; padding: 1px 6px; border-radius: 4px;
  background: var(--primary-bg); color: var(--primary); border: 1px solid rgba(96,165,250,0.3);
}
.pm-path { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 180px; }

.pm-right { display: flex; align-items: center; gap: 12px; margin-left: 16px; }
.pm-usage { display: flex; flex-direction: column; gap: 3px; }
.pm-usage-row { display: flex; align-items: center; gap: 6px; }
.pm-label { font-size: 10px; color: var(--text-tertiary); width: 28px; }
.pm-val { font-size: 12px; font-weight: 600; font-family: 'SF Mono', 'Monaco', monospace; min-width: 48px; text-align: right; }
.pm-val.usage-low { color: var(--success); }
.pm-val.usage-medium { color: var(--warning); }
.pm-val.usage-high { color: var(--danger); }
.pm-pid {
  font-size: 10px; font-family: 'SF Mono', 'Monaco', monospace;
  color: var(--text-tertiary); background: var(--border-color);
  padding: 3px 6px; border-radius: 4px;
}
.pm-kill-btn {
  padding: 4px 10px; background: var(--danger-bg); color: var(--danger);
  border: 1px solid rgba(248,113,113,0.3); border-radius: 6px;
  font-size: 11px; font-weight: 600; cursor: default;
}

/* ===== Screenshot: DesktopClean Preview (暗色) ===== */
.dt-preview-body { padding: 12px 14px !important; min-height: auto !important; aspect-ratio: auto; }
.dt-prev-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.dt-prev-title { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.dt-prev-btn {
  font-size: 12px; font-weight: 600; color: var(--primary);
  background: var(--primary-bg); padding: 5px 14px; border-radius: 6px;
}
.dt-prev-summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; background: var(--bg-surface); border-radius: 10px;
  border: 1px solid var(--border-color); margin-bottom: 8px;
}
.dt-total { display: block; font-size: 20px; font-weight: 800; color: var(--text-primary); }
.dt-detail { display: block; font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.dt-actions { display: flex; align-items: center; gap: 8px; }
.dt-view-btn {
  padding: 4px 10px; border-radius: 6px; font-size: 11px; font-weight: 500;
  background: var(--bg-surface-hover); color: var(--text-secondary); border: 1px solid var(--border-color); cursor: default;
}
.dt-view-btn.active { background: var(--primary-bg); color: var(--primary); border-color: var(--primary); }
.dt-select-btn {
  padding: 4px 10px; border-radius: 6px; font-size: 11px; font-weight: 500;
  background: var(--bg-surface-hover); color: var(--text-secondary); border: 1px solid var(--border-color); cursor: default;
}
.dt-delete-btn {
  padding: 5px 14px; background: var(--danger); color: white;
  border: none; border-radius: 6px; font-size: 11px; font-weight: 600; cursor: default;
}

/* 表头 */
.dt-table-header {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; background: var(--bg-surface-hover);
  border-radius: 6px; font-size: 11px; font-weight: 500;
  color: var(--text-tertiary); margin-bottom: 4px;
}

/* 文件列表 */
.dt-file-list { display: flex; flex-direction: column; gap: 1px; }
.dt-file-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  font-size: 12px; transition: background 0.15s;
}
.dt-file-row:hover { background: var(--bg-surface-hover); }
.dt-file-row input[type="checkbox"] {
  width: 16px; height: 16px; accent-color: var(--primary);
}
.dt-file-icon { font-size: 18px; flex-shrink: 0; }
.dt-file-name { flex: 1; font-weight: 500; color: var(--text-primary); }
.dt-file-time { width: 100px; text-align: right; color: var(--text-tertiary); font-size: 11px; }
.dt-file-size { width: 70px; text-align: right; font-weight: 600; color: var(--text-primary); font-size: 11px; }

/* More screenshots hint */
.more-screenshots-hint {
  text-align: center; margin-top: 40px; padding-top: 30px;
  border-top: 1px solid var(--border-color);
}
.more-screenshots-hint p { font-size: 14px; color: var(--text-tertiary); }
.more-screenshots-hint span {
  display: inline-block; padding: 4px 14px; margin: 4px;
  background: var(--primary-bg); border: 1px solid rgba(96, 165, 250, 0.2);
  border-radius: 100px; font-size: 13px; color: var(--primary); font-weight: 500;
}

/* ============================================
   Architecture Section
   ============================================ */
.architecture {
  padding: 120px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.arch-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.arch-text h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.arch-text > p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

.arch-list {
  list-style: none;
  margin-bottom: 24px;
}

.arch-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.arch-list li strong {
  color: var(--primary);
}

.arch-note {
  font-size: 14px !important;
  color: var(--text-tertiary) !important;
  padding: 16px;
  background: var(--primary-bg);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.arch-layer {
  width: 100%;
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 700;
  font-size: 16px;
  transition: transform 0.3s ease;
}

.arch-layer:hover {
  transform: scale(1.03);
}

.arch-layer small {
  font-weight: 400;
  font-size: 12px;
  color: inherit;
  opacity: 0.7;
  display: block;
  margin-top: 4px;
}

.layer-tech {
  display: block;
  font-size: 11px;
  font-weight: 500;
  opacity: 0.6;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.layer-ui {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(8, 145, 178, 0.1));
  border: 1px solid rgba(96, 165, 250, 0.3);
  color: var(--primary);
}

.layer-bridge {
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.15), rgba(59, 130, 246, 0.1));
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: #22d3ee;
}

.layer-native {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(8, 145, 178, 0.1));
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #4ade80;
}

.arch-arrow {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 600;
  letter-spacing: 2px;
}

/* ============================================
   Download Section
   ============================================ */
.download {
  padding: 120px 0;
  background: var(--bg-primary);
}

.download-card {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.download-card h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  color: var(--text-primary);
}

.download-desc {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 36px;
  position: relative;
}

.download-info {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 36px;
  position: relative;
}

.info-item {
  padding: 16px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.info-label {
  display: block;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.info-value {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.download-btn {
  position: relative;
  width: 100%;
  justify-content: center;
  font-size: 18px;
  padding: 20px;
  margin-bottom: 16px;
}

.download-note {
  font-size: 13px;
  color: var(--text-tertiary);
  position: relative;
}

.download-note a {
  color: var(--primary);
}

.download-note a:hover {
  text-decoration: underline;
}

/* 下载区域附加链接 */
.download-extras {
  margin-bottom: 12px;
  position: relative;
}

.link-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-tertiary);
  transition: color 0.2s ease;
}

.link-secondary:hover {
  color: var(--primary);
}

.link-secondary svg {
  opacity: 0.7;
}

/* 版本加载状态 */
.version-loading {
  color: var(--text-tertiary);
  font-style: italic;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-top: 12px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: var(--text-tertiary);
  padding: 4px 0;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  text-align: center;
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 120px;
    gap: 40px;
  }

  .hero-container {
    max-width: 100%;
  }

  .hero-title {
    font-size: 44px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-meta {
    justify-content: center;
  }

  .hero-visual {
    max-width: 100%;
  }

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

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

  .arch-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-title {
    font-size: 36px;
  }

  .section-title {
    font-size: 32px;
  }

  .features-grid,
  .screenshots-grid {
    grid-template-columns: 1fr;
  }

  .highlights-grid {
    grid-template-columns: 1fr 1fr;
  }

  .download-info {
    grid-template-columns: repeat(3, 1fr);
  }

  .mac-window-body {
    min-height: 360px;
  }

  .dc-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dc-cards-grid { grid-template-columns: 1fr; }
  .dc-prev-stats { grid-template-columns: repeat(2, 1fr); }
  .qc-prev-stats { grid-template-columns: repeat(2, 1fr); }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 30px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .btn-lg {
    padding: 12px 24px;
    font-size: 14px;
  }

  .download-info {
    grid-template-columns: 1fr 1fr;
  }

  .download-card {
    padding: 40px 24px;
  }

  .highlights-grid {
    grid-template-columns: 1fr;
  }
}