/* ============================================================
   v6.2 移动端 drawer bottom-sheet 改造
   问题：小屏 drawer 只有 320-340px 宽 × 44-62vh，排行榜/AI题
        面板信息看不全，用户反馈"排名点了看不到"。
   方案：手机端（<=900px 或 pointer:coarse）drawer 变全宽
        底部 sheet：从屏幕底部滑出，宽度 100vw，高度 80vh。
   ============================================================ */

/* ============================================================
   v6.2.2 修复：断点从 (pointer:coarse) OR 收紧成 AND max-width:900px
   原因：PC 触屏一体机 pointer:coarse=true 会导致大屏也变 bottom sheet
        排行榜从底部弹出 100vw 遮住整屏，交互破坏
   现在只有 <=900px 屏幕（无论触屏与否）才用 bottom sheet
   ============================================================ */

@media (max-width: 900px) {
  .drawer-panel {
    /* v6.2.8：关键修复 —— 强制覆盖 style.css 的 visibility:hidden，避免关闭后无法重新打开 */
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    top: auto !important;
    width: 100vw !important;
    max-width: 100vw !important;
    max-height: 82dvh !important;
    height: auto !important;
    padding: 20px 16px calc(24px + env(safe-area-inset-bottom)) 16px !important;
    border-radius: 24px 24px 0 0 !important;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%) !important;
    color: #f8fafc !important;
    box-shadow: 0 -8px 30px rgba(0, 0, 0, .5) !important;
    /* 底部弹出动画 */
    transform: translateY(100%) !important;
    transition: transform .28s cubic-bezier(.2, 0.9, .3, 1) !important;
    z-index: 100 !important;
    overflow: auto !important;
    -webkit-overflow-scrolling: touch !important;
    visibility: visible !important;   /* 强制可见，用 transform 控制显隐 */
    opacity: 1 !important;
    display: block !important;
    pointer-events: none !important;   /* 关闭时不接收事件 */
  }
  .drawer-panel.open {
    transform: translateY(0) !important;
    pointer-events: auto !important;
  }

  /* 顶部拖拽指示条（Material bottom sheet 视觉） */
  .drawer-panel::before {
    content: "";
    position: sticky;
    top: 0;
    display: block;
    width: 40px;
    height: 4px;
    margin: 0 auto 12px auto;
    background: rgba(255, 255, 255, .3);
    border-radius: 999px;
  }

  /* drawer header 大关闭按钮 */
  .drawer-header {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding-bottom: 12px !important;
    margin-bottom: 12px !important;
    border-bottom: 1px solid rgba(255, 255, 255, .1) !important;
    position: sticky;
    top: 0;
    background: linear-gradient(180deg, #1e293b 95%, transparent);
    z-index: 2;
  }
  .drawer-header h2 {
    font-size: 18px !important;
    color: #f8fafc !important;
    margin: 0 !important;
    font-weight: 700 !important;
  }
  .drawer-close {
    min-width: 44px !important;
    min-height: 44px !important;
    font-size: 24px !important;
    background: rgba(255, 255, 255, .08) !important;
    color: #f8fafc !important;
    border: 1px solid rgba(255, 255, 255, .15) !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    -webkit-tap-highlight-color: transparent;
  }

  /* mission-panel / help drawer 段落文字浅色 */
  .drawer-panel p, .drawer-panel li {
    color: #cbd5e1 !important;
    font-size: 15px !important;
    line-height: 1.7 !important;
  }
  .drawer-panel .ai-panel-content select {
    color: #1e293b !important;
    font-size: 16px !important; /* iOS 不缩放 */
  }
  .drawer-panel button:not(.drawer-close):not(.rank-tab) {
    min-height: 48px !important;
    font-size: 15px !important;
    border-radius: 12px !important;
  }

  /* 打开 drawer 时，加一层背景遮罩，点击关闭 */
  body:has(.drawer-panel.open)::after {
    content: "";
    position: fixed;
    top:0; left:0; right:0; bottom:0;
    background: rgba(0, 0, 0, .5);
    z-index: 99;  /* drawer 是 100 */
    pointer-events: none;
    animation: drawerBackdropIn .28s ease;
  }
  @keyframes drawerBackdropIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
}

/* 手机端排行榜列表专项优化：显示更多信息 */
@media (max-width: 900px) {
  .rank-list { max-height: none !important; gap: 8px !important; }
  .rank-item {
    grid-template-columns: 36px 36px 1fr auto !important;
    gap: 10px !important;
    padding: 12px !important;
    font-size: 15px !important;
    min-height: 60px !important;
  }
  .rank-item .rank-level { display: none; }  /* 手机上省一列 */
  .rank-medal { font-size: 20px !important; }
  .rank-avatar { font-size: 28px !important; }
  .rank-xp { font-size: 14px !important; }
  .rank-tab { min-height: 44px !important; font-size: 14px !important; }
  .rank-me-inner {
    grid-template-columns: 36px 36px 1fr auto !important;
    font-size: 15px !important;
  }
  .rank-me-inner .rank-level { display: none; }
}