:root{--bg:#f5f7fb;--panel:#fff;--line:#e5eaf2;--text:#1f2937;--muted:#6b7280;--blue:#2563eb;--blue2:#e8f0ff;--green:#10b981;--red:#ef4444;--shadow:0 10px 30px rgba(15,23,42,.06)}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:"Microsoft YaHei",Arial,sans-serif;color:var(--text)}button,.file-btn{border:0;background:var(--blue);color:#fff;border-radius:10px;padding:10px 14px;cursor:pointer;font-weight:600;text-align:center}button.secondary{background:#edf2f7;color:#334155}button.ghost{background:#fff;color:var(--blue);border:1px solid var(--line)}button.danger{background:#fee2e2;color:#b91c1c}button:disabled{opacity:.45;cursor:not-allowed}.topbar{height:74px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:16px;padding:0 22px;position:sticky;top:0;z-index:5}.topbar h1{font-size:20px;margin:0}.topbar p{font-size:13px;color:var(--muted);margin:5px 0 0}.login{margin-left:auto;display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px}.login select,select,input,textarea{border:1px solid var(--line);border-radius:10px;padding:9px;background:#fff;color:var(--text);width:100%}.layout{display:flex;min-height:calc(100vh - 74px)}.sidebar{width:285px;padding:18px;display:flex;flex-direction:column;gap:14px;transition:.2s}.card,.list-panel,.detail-panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.card{padding:16px}.card h2,.panel-head h2{font-size:16px;margin:0 0 12px}.card label{display:block;font-size:13px;color:var(--muted);margin:10px 0}.card button,.file-btn{width:100%;margin-top:8px}.file-btn input{display:none}.chip-list{display:grid;grid-template-columns:1fr 1fr;gap:8px}.chip{background:#f1f5f9;color:#334155;padding:8px 10px;border-radius:999px;text-align:center;cursor:pointer;font-size:13px}.chip.active{background:var(--blue2);color:var(--blue);font-weight:700}.main{flex:1;display:grid;grid-template-columns:minmax(360px,44%) 1fr;gap:18px;padding:18px 18px 18px 0}.list-panel,.detail-panel{min-height:500px;overflow:hidden}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}.panel-head span{font-size:13px;color:var(--muted)}.task-list{padding:12px;display:flex;flex-direction:column;gap:10px;max-height:calc(100vh - 145px);overflow:auto}.task-item{border:1px solid var(--line);border-radius:15px;padding:13px;cursor:pointer;background:#fff}.task-item:hover,.task-item.active{border-color:#93b4ff;background:#f8fbff}.task-title{font-weight:700;line-height:1.45;margin-bottom:8px;white-space:pre-wrap}.meta{display:flex;flex-wrap:wrap;gap:6px}.badge{font-size:12px;padding:4px 8px;border-radius:999px;background:#f1f5f9;color:#475569}.badge.high{background:#fee2e2;color:#b91c1c}.badge.mid{background:#fef3c7;color:#92400e}.badge.low{background:#dcfce7;color:#166534}.badge.due-ok{background:#dbeafe;color:#1d4ed8}.badge.due-today{background:#fef3c7;color:#92400e}.badge.due-over{background:#fee2e2;color:#b91c1c}.badge.due-done{background:#dcfce7;color:#166534}.badge.due-none{background:#f1f5f9;color:#64748b}.detail-box{padding:18px;max-height:calc(100vh - 145px);overflow:auto}.empty{color:var(--muted);text-align:center;padding-top:80px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid .full{grid-column:1/-1}.row{display:flex;gap:10px;align-items:center}.row>*{flex:1}.detail-box label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.detail-box input,.detail-box select,.detail-box textarea{margin-top:6px}.detail-box textarea{min-height:90px;resize:vertical}.section-title{margin:22px 0 10px;font-size:16px}.transfer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.checks{display:grid;grid-template-columns:1fr 1fr;gap:8px}.checks label{background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:8px;margin:0;color:#334155}.checks input{width:auto;margin-right:6px}.log{border-left:3px solid var(--blue2);padding:8px 0 8px 12px;margin:8px 0}.log strong{display:block}.log small{color:var(--muted)}.toast{position:fixed;right:18px;bottom:18px;background:#111827;color:#fff;padding:12px 16px;border-radius:12px;opacity:0;transform:translateY(10px);transition:.2s;z-index:10}.toast.show{opacity:1;transform:translateY(0)}.mobile-only{display:none}
.install-btn{width:auto;white-space:nowrap;align-items:center;justify-content:center}.link-btn{display:block;text-decoration:none}.install-card{border:1px solid var(--line);border-radius:16px;background:#f8fbff;padding:14px;margin:12px 0}.install-card h3{margin:0 0 8px;font-size:16px}.install-card ol{margin:8px 0 0;padding-left:20px;line-height:1.8;color:#334155}.install-card .hint{color:var(--muted);font-size:13px;margin-top:8px}.install-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.install-title{font-size:18px;margin:0 0 8px}.install-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
.quick-panel{border:1px solid var(--line);background:#f8fbff;border-radius:16px;padding:14px}.quick-panel textarea{min-height:72px}.quick-panel button:first-child{background:var(--green)}.task-item.urg-over{border-left:4px solid var(--red);background:#fff5f5}.task-item.urg-today{border-left:4px solid #f59e0b;background:#fffbeb}.task-item.urg-soon{border-left:4px solid #fbbf24;background:#fefce8}.task-item.urg-ok{border-left:4px solid var(--green);background:#f0fdf4}.task-item.urg-none{border-left:4px solid var(--line)}.task-item.urg-done{border-left:4px solid #cbd5e1;opacity:.65}.chip[data-person=""]{background:var(--blue2);color:var(--blue);font-weight:700}

/* ====== 手机端专用组件（桌面端隐藏） ====== */
.sidebar-backdrop{display:none}
.bottom-nav{display:none}
.mobile-back-btn{display:none}

/* ====== 手机端全面适配 ====== */
@media(max-width:900px){
  :root{--safe-bottom:env(safe-area-inset-bottom,0px)}
  body{-webkit-tap-highlight-color:transparent;-webkit-overflow-scrolling:touch}
  .mobile-only{display:block}

  /* 顶栏：精简布局 */
  .topbar{height:56px;min-height:56px;padding:0 10px;gap:8px}
  .topbar>div:not(.login):not(.mobile-only){flex:1;min-width:0}
  .topbar h1{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .topbar p{display:none}
  .topbar .install-btn{display:none}
  .topbar .login{font-size:12px;gap:4px;flex-shrink:0}
  .topbar .login span{display:none}
  .topbar .login select{max-width:100px;font-size:12px;padding:7px 6px}
  .mobile-only{font-size:20px;padding:6px 10px;width:auto;flex-shrink:0}

  /* 主布局：单列 */
  .layout{display:block;min-height:calc(100vh - 56px)}
  .main{display:block;padding:8px 8px 70px 8px}

  /* 侧边栏：抽屉式 + 遮罩 */
  .sidebar{
    position:fixed;top:56px;bottom:0;left:-100%;width:85%;max-width:320px;
    background:#fff;z-index:30;overflow-y:auto;
    transition:left .25s ease;border-right:1px solid var(--line);
    padding:14px;padding-bottom:calc(40px + var(--safe-bottom))
  }
  .sidebar.open{left:0}
  .sidebar-backdrop{
    display:none;position:fixed;top:56px;bottom:0;left:0;right:0;
    background:rgba(0,0,0,.4);z-index:25
  }
  .sidebar-backdrop.show{display:block}

  /* 任务清单面板 */
  .list-panel{border-radius:14px;margin-bottom:8px;min-height:auto}
  .panel-head{padding:12px 14px}
  .panel-head h2{font-size:15px}
  .panel-head span{font-size:12px}
  .task-list{padding:8px;gap:8px;max-height:none}
  .task-item{padding:12px;border-radius:12px}
  .task-title{font-size:14px;line-height:1.5;margin-bottom:6px}
  .meta{gap:5px}
  .badge{font-size:11px;padding:3px 7px}

  /* 详情面板：全屏覆盖式 */
  .detail-panel{
    position:fixed;top:56px;bottom:0;left:0;right:0;z-index:35;
    border-radius:0;margin-bottom:0;min-height:auto;
    transform:translateY(100%);transition:transform .25s ease;
    display:flex;flex-direction:column;
    padding-bottom:var(--safe-bottom)
  }
  .detail-panel.mobile-show{transform:translateY(0)}
  .detail-box{padding:14px;max-height:none;flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}
  .detail-box.empty{display:none}

  /* 返回按钮（手机端详情顶部） */
  .mobile-back-btn{
    display:none;flex-shrink:0;background:#fff;border:0;border-bottom:1px solid var(--line);
    padding:10px 14px;font-size:14px;color:var(--blue);font-weight:600;text-align:left;
    cursor:pointer;position:sticky;top:0;z-index:1
  }
  .detail-panel.mobile-show .mobile-back-btn{display:block}

  /* 表单：单列大触控 */
  .form-grid{grid-template-columns:1fr;gap:12px}
  .form-grid label{font-size:14px}
  .form-grid input,.form-grid select,.form-grid textarea{
    padding:11px;font-size:15px;min-height:44px
  }
  .form-grid textarea{min-height:80px}
  .transfer-grid{grid-template-columns:1fr}
  .checks{grid-template-columns:1fr 1fr}
  .checks label{padding:10px;font-size:14px}
  .checks input{width:18px;height:18px}
  .detail-box button,.detail-box .file-btn{padding:12px;font-size:15px;min-height:44px}
  .section-title{font-size:15px;margin:18px 0 8px}
  .row{flex-direction:row}
  .row>*{min-height:44px}

  /* 底部导航栏 */
  .bottom-nav{
    display:flex;position:fixed;bottom:0;left:0;right:0;z-index:20;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:var(--safe-bottom);
    box-shadow:0 -2px 12px rgba(0,0,0,.06)
  }
  .bottom-nav button{
    flex:1;background:#fff;border:0;color:var(--muted);
    padding:8px 4px;font-size:11px;font-weight:600;
    display:flex;flex-direction:column;align-items:center;gap:3px;
    cursor:pointer;min-height:52px;border-radius:0
  }
  .bottom-nav button .nav-icon{font-size:20px;line-height:1}
  .bottom-nav button.active{color:var(--blue)}
  .bottom-nav button:active{background:#f5f7fb}

  /* Toast 位置调整 */
  .toast{right:10px;bottom:calc(65px + var(--safe-bottom));left:10px;text-align:center}

  /* 安装说明卡片 */
  .install-grid{grid-template-columns:1fr}
  .install-card{padding:12px}
  .install-card ol{font-size:13px;line-height:1.7}
  .install-actions button,.install-actions .file-btn{min-height:44px;font-size:14px}

  /* 筛选区域紧凑化 */
  .card{padding:12px;border-radius:14px}
  .card h2{font-size:15px}
  .card label{font-size:13px;margin:8px 0}
  .card input,.card select{padding:10px;font-size:14px;min-height:42px}
  .card button,.card .file-btn{padding:11px;font-size:14px;min-height:44px}
  .chip{padding:9px 8px;font-size:13px}
}

/* 超小屏幕（≤380px）进一步压缩 */
@media(max-width:380px){
  .topbar h1{font-size:13px}
  .topbar .login select{max-width:84px}
  .task-title{font-size:13px}
  .badge{font-size:10px;padding:2px 6px}
  .bottom-nav button{font-size:10px}
  .bottom-nav button .nav-icon{font-size:18px}
}