/* ============================================================================
   optimizer-mobile.css — 移动端优化样式
   版本: 1.0.0
   生成时间: 2026-06-14
   ============================================================================ */

/* ===== 1. 全局触摸优化 ===== */
*,
*::before,
*::after {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

/* 恢复输入框和可编辑元素的文本选择 */
input,
textarea,
select,
[contenteditable="true"] {
  user-select: auto;
  -webkit-user-select: auto;
}

/* 恢复可滚动区域的正常触摸行为 */
.scrollable,
.page-content,
.ai-float-body,
.terminal-body,
.encyclopedia-content,
.leaderboard-content,
.codex-grid,
.shop-list,
.achievement-list {
  touch-action: pan-y pinch-zoom;
  overscroll-behavior-y: contain;
  -webkit-overflow-scrolling: touch;
}

/* ===== 2. 触摸反馈增强 ===== */
/* 统一所有可点击元素的 :active 状态 */
button:active,
.mode-btn:active,
.menu-cat-btn:active,
.tool-btn:active,
.quiz-opt:active,
.choice-btn:active,
.btn-primary:active,
.btn-secondary:active,
.ai-fab:active,
.ai-float-tab:active,
.ai-quick-btn:active,
.ai-recommend-card:active,
.settings-card:active,
.back-float:active,
.back-to-categories:active,
.terminal-send-btn:active,
.legend-item:active,
.stat-card:active,
.diagnosis-summary:active,
.weak-tag:active,
.action-btn:active,
.menu-section-title:active {
  transform: scale(0.96) !important;
  opacity: 0.85;
  transition: transform 0.08s ease, opacity 0.08s ease;
}

/* 触摸设备上禁用 hover 延迟 */
@media (hover: none) {
  .mode-btn:hover,
  .menu-cat-btn:hover,
  .tool-btn:hover,
  .quiz-opt:hover,
  .choice-btn:hover,
  .btn-primary:hover,
  .btn-secondary:hover,
  .ai-fab:hover,
  .ai-recommend-card:hover,
  .settings-card:hover,
  .back-float:hover,
  .back-to-categories:hover,
  .terminal-send-btn:hover,
  .legend-item:hover,
  .stat-card:hover,
  .action-btn:hover {
    transform: none !important;
    box-shadow: inherit !important;
  }
}

/* ===== 3. 触摸目标大小保障（>= 44px，推荐 48px） ===== */
.tool-btn,
.menu-toolbar .tool-btn,
.ai-float-close,
.ai-float-send,
.ai-float-tab,
.ai-quick-btn,
.back-float,
.back-to-categories,
.terminal-send-btn,
.menu-section-title .collapse-arrow {
  min-width: 44px;
  min-height: 44px;
}

/* 答题选项必须足够大 */
.quiz-opt,
.choice-btn,
.scenario-opt {
  min-height: 52px;
  padding: 14px 18px;
}

/* 底部工具栏按钮 */
.menu-toolbar .tool-btn {
  padding: 8px 4px !important;
}

/* ===== 4. 安全区域适配（刘海屏/灵动岛） ===== */
/* 顶部安全区域 */
.page {
  padding-top: max(0px, env(safe-area-inset-top, 0px)) !important;
}

/* 底部安全区域 */
.page {
  padding-bottom: calc(140px + env(safe-area-inset-bottom, 0px)) !important;
}

.menu-toolbar {
  padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px)) !important;
}

/* 侧边安全区域（横屏） */
#app,
.page {
  padding-left: max(0px, env(safe-area-inset-left, 0px)) !important;
  padding-right: max(0px, env(safe-area-inset-right, 0px)) !important;
}

/* ===== 5. 虚拟键盘适配 ===== */
/* 键盘弹出时调整布局 */
body.keyboard-open .page-content {
  padding-bottom: calc(200px + env(safe-area-inset-bottom, 0px)) !important;
}

body.keyboard-open .menu-toolbar {
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

body.keyboard-open .ai-fab {
  transform: translateY(-60px);
  transition: transform 0.3s ease;
}

/* 输入区域在键盘上方 */
.terminal-input-area,
.ai-float-footer {
  position: sticky;
  bottom: 0;
  z-index: 100;
}

/* ===== 6. 滑动返回手势区域 ===== */
/* 左侧边缘滑动区域（页面内返回） */
.swipe-back-zone {
  position: fixed;
  left: 0;
  top: 0;
  width: 20px;
  height: 100vh;
  z-index: 9998;
  pointer-events: none;
}

/* ===== 7. 滚动优化 ===== */
/* 禁止 body 滚动，只允许页面内滚动 */
html,
body {
  overscroll-behavior-y: none;
  -webkit-overflow-scrolling: touch;
}

.page-content,
.ai-float-body,
.terminal-body {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
}

/* 下拉刷新占位（禁用默认行为） */
body {
  overscroll-behavior-y: none;
}

/* ===== 8. 性能优化：GPU 加速 ===== */
.page,
.menu-toolbar,
.modal-overlay,
.ai-float-panel,
.ai-fab {
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* 移动端减少重绘区域 */
.page {
  contain: layout style paint;
}

.menu-toolbar {
  contain: layout style;
}

/* ===== 9. 低端设备/触摸设备优化 ===== */
/* 触摸设备简化 3D 效果 */
.touch-device .mode-btn,
.touch-device .menu-cat-btn,
.touch-device .quiz-opt,
.touch-device .scenario-opt {
  transform-style: flat !important;
  perspective: none !important;
}

/* 触摸设备禁用 backdrop-filter（性能） */
.touch-device .menu-toolbar,
.touch-device .ai-float-panel,
.touch-device .settings-card,
.touch-device .back-float {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  background: rgba(12, 12, 35, 0.98) !important;
}

/* 低性能模式进一步简化 */
.low-perf-mode .bg-orb,
.low-perf-mode .bg-gradient,
.low-perf-mode .bg-noise,
.low-perf-mode .bg-vignette,
.low-perf-mode .bg-top-bar,
.low-perf-mode .fx-layer,
.low-perf-mode .ls-hexgrid,
.low-perf-mode .ls-scanline,
.low-perf-mode .ls-glitch-line,
.low-perf-mode .ls-ring-outer,
.low-perf-mode .ls-ring-spin,
.low-perf-mode .ls-ring-inner,
.low-perf-mode .dust,
.low-perf-mode .light-sweep,
.low-perf-mode .geo-ring,
.low-perf-mode .pulse-ring,
.low-perf-mode .meteor,
.low-perf-mode .gradient-bar,
.low-perf-mode .data-stream,
.low-perf-mode .corner-decor {
  display: none !important;
}

.low-perf-mode .page,
.low-perf-mode .menu-toolbar {
  contain: none !important;
}

/* ===== 10. 响应式增强 ===== */
@media (max-width: 768px) {
  /* 更大的触摸目标 */
  .quiz-opt,
  .choice-btn,
  .scenario-opt {
    min-height: 56px;
    padding: 16px 20px;
    font-size: 16px; /* 防止 iOS 缩放 */
  }

  .btn-primary,
  .btn-secondary {
    min-height: 48px;
    padding: 14px 28px;
  }

  /* 输入框防缩放 */
  input[type="text"],
  input[type="number"],
  textarea,
  select,
  .terminal-input,
  .ai-float-input {
    font-size: 16px !important; /* iOS 防止自动缩放 */
    touch-action: manipulation;
  }

  /* 底部栏间距调整 */
  .menu-toolbar {
    gap: 2px !important;
  }

  .menu-toolbar .tool-btn {
    min-height: 56px !important;
  }

  /* 页面内容安全区域 */
  .page-content {
    padding-top: max(12px, env(safe-area-inset-top, 0px)) !important;
    padding-bottom: calc(160px + env(safe-area-inset-bottom, 0px)) !important;
  }

  /* 浮动按钮避开底部栏 */
  .ai-fab {
    bottom: calc(72px + env(safe-area-inset-bottom, 0px)) !important;
  }
}

@media (max-width: 480px) {
  /* 极小屏幕进一步调整 */
  .menu-logo-title {
    font-size: 36px !important;
  }

  .mode-btn .mode-icon {
    font-size: 48px !important;
  }

  .mode-btn .mode-name {
    font-size: 16px !important;
  }

  .mode-btn .mode-desc {
    font-size: 13px !important;
  }

  /* 输入框在极小屏幕的优化 */
  .terminal-input-area,
  .ai-float-footer {
    padding: 8px 12px !important;
  }

  .ai-float-panel {
    width: calc(100vw - 24px) !important;
    right: 12px !important;
    bottom: calc(140px + env(safe-area-inset-bottom, 0px)) !important;
  }
}

/* ===== 11. 横屏优化 ===== */
@media (max-height: 500px) and (orientation: landscape) {
  .menu-toolbar {
    padding: 4px 8px calc(4px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .menu-toolbar .tool-btn {
    min-height: 44px !important;
    padding: 4px 2px !important;
  }

  .menu-toolbar .tool-btn .icon {
    font-size: 20px !important;
  }

  .menu-toolbar .tool-btn .label {
    font-size: 10px !important;
  }

  .page-content {
    padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .ai-fab {
    bottom: calc(60px + env(safe-area-inset-bottom, 0px)) !important;
  }
}

/* ===== 12. 打印时隐藏手势区域 ===== */
@media print {
  .swipe-back-zone {
    display: none !important;
  }
}

/* ===== 13.  prefers-reduced-motion 增强 ===== */
@media (prefers-reduced-motion: reduce) {
  .page,
  .menu-toolbar,
  .ai-float-panel,
  .ai-fab {
    transition: none !important;
    animation: none !important;
  }
}

/* ===== 14. 高对比度模式触摸反馈 ===== */
.high-contrast .mode-btn:active,
.high-contrast .menu-cat-btn:active,
.high-contrast .tool-btn:active,
.high-contrast .quiz-opt:active,
.high-contrast .choice-btn:active {
  outline: 3px solid #ffff00 !important;
  outline-offset: 2px !important;
}