:root {
  --primary: #3b82f6;
  --primary-light: #dbeafe;
  --primary-dark: #2563eb;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-secondary: #64748b;
  --hover: #f1f5f9;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
  --sidebar-w: 220px;
}
* { margin:0; padding:0; box-sizing:border-box; font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; }
body { background:var(--bg); color:var(--text); overflow:hidden; height:100vh; }

/* 布局 */
.layout { display:flex; height:100vh; }
.sidebar { width:var(--sidebar-w); background:var(--card-bg); border-right:1px solid var(--border); display:flex; flex-direction:column; overflow:hidden; flex-shrink:0; }
.sidebar-header { padding:16px 20px; font-weight:700; font-size:15px; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:8px; }
.sidebar-header svg { width:20px; height:20px; }
.sidebar-items { flex:1; overflow-y:auto; padding:8px; }
.sidebar-item { padding:10px 14px; border-radius:var(--radius); cursor:pointer; font-size:14px; display:flex; align-items:center; gap:8px; transition:all 0.15s; }
.sidebar-item:hover { background:var(--hover); }
.sidebar-item.active { background:var(--primary-light); color:var(--primary-dark); font-weight:600; }
.sidebar-item .badge { margin-left:auto; font-size:11px; background:var(--border); padding:1px 6px; border-radius:10px; color:var(--text-secondary); }
.sidebar-item .badge.readonly { background:#fef3c7; color:#92400e; }

.main-panel { flex:1; display:flex; flex-direction:column; overflow:hidden; }

/* 顶部导航 */
.topbar { height:52px; background:var(--card-bg); border-bottom:1px solid var(--border); display:flex; align-items:center; padding:0 16px; gap:12px; flex-shrink:0; }
.topbar-brand { font-weight:700; font-size:15px; color:var(--primary); white-space:nowrap; }
.topbar-nav { display:flex; gap:4px; align-items:center; }
.topbar-nav a { padding:6px 12px; border-radius:6px; text-decoration:none; color:var(--text-secondary); font-size:13px; transition:all 0.15s; }
.topbar-nav a:hover { background:var(--hover); color:var(--text); }
.topbar-spacer { flex:1; }
.topbar-user { display:flex; align-items:center; gap:8px; font-size:13px; color:var(--text-secondary); }
.topbar-user .avatar { width:28px; height:28px; border-radius:50%; background:var(--primary); color:#fff; display:flex; align-items:center; justify-content:center; font-size:12px; font-weight:600; }

/* 面包屑 */
.breadcrumb { padding:10px 16px; display:flex; align-items:center; gap:4px; font-size:13px; background:var(--card-bg); border-bottom:1px solid var(--border); flex-shrink:0; flex-wrap:wrap; }
.breadcrumb-item { cursor:pointer; color:var(--primary); padding:2px 6px; border-radius:4px; }
.breadcrumb-item:hover { background:var(--primary-light); }
.breadcrumb-sep { color:var(--text-secondary); user-select:none; }

/* 工具栏 */
.toolbar { padding:8px 16px; display:flex; gap:6px; border-bottom:1px solid var(--border); flex-wrap:wrap; background:var(--card-bg); flex-shrink:0; }

/* 按钮 */
button { padding:7px 14px; border:1px solid var(--border); background:var(--card-bg); border-radius:6px; cursor:pointer; font-size:13px; color:var(--text); transition:all 0.15s; display:inline-flex; align-items:center; gap:6px; }
button:hover { background:var(--hover); border-color:#cbd5e1; }
button:disabled { opacity:0.45; cursor:not-allowed; }
button.primary { background:var(--primary); color:#fff; border-color:var(--primary); }
button.primary:hover { background:var(--primary-dark); }
button.danger { color:#ef4444; border-color:#fecaca; }
button.danger:hover { background:#fee2e2; }
button.sm { padding:4px 10px; font-size:12px; }

/* 文件列表 */
#file-container { flex:1; overflow-y:auto; padding:8px 16px; }

/* 表格视图 */
.file-table { width:100%; border-collapse:collapse; font-size:13px; }
.file-table thead th { text-align:left; padding:8px 12px; color:var(--text-secondary); font-weight:600; border-bottom:1px solid var(--border); position:sticky; top:0; background:var(--card-bg); z-index:5; }
.file-table tbody tr { cursor:pointer; transition:background 0.1s; border-bottom:1px solid #f1f5f9; }
.file-table tbody tr:hover { background:var(--hover); }
.file-table tbody tr.selected { background:var(--primary-light); }
.file-table td { padding:8px 12px; }
.file-table .col-name { display:flex; align-items:center; gap:8px; }
.file-table .col-size { color:var(--text-secondary); white-space:nowrap; }
.file-table .col-date { color:var(--text-secondary); white-space:nowrap; }
.file-table .col-check { width:36px; text-align:center; }
.file-table .row-check { width:14px; height:14px; margin:0; accent-color:var(--primary); cursor:pointer; }
.file-table .col-op { text-align:center; white-space:nowrap; }

/* 卡片视图（Windows 图标风格：紧凑网格 + 复选框） */
.card-view { display:grid; grid-template-columns:repeat(auto-fill,minmax(96px,1fr)); gap:6px; padding:8px 0; align-content:start; }
.card-item { position:relative; border:1px solid transparent; border-radius:6px; padding:8px 4px 6px; text-align:center; cursor:pointer; transition:all 0.12s; display:flex; flex-direction:column; align-items:center; gap:4px; }
.card-item:hover { background:var(--hover); }
.card-item.selected { background:var(--primary-light); border-color:var(--primary); }
.card-item .card-icon { width:44px; height:44px; display:flex; align-items:center; justify-content:center; }
.card-item .card-icon .file-icon { width:38px; height:38px; }
.card-item .card-check { position:absolute; top:3px; left:3px; width:14px; height:14px; margin:0; cursor:pointer; accent-color:var(--primary); opacity:0; transition:opacity 0.12s; z-index:2; }
.card-item:hover .card-check, .card-item.selected .card-check { opacity:1; }
.card-item .card-name { font-size:11px; word-break:break-all; line-height:1.25; max-width:100%; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }

/* 任务弹窗 */
.task-popup { position:fixed; right:16px; bottom:16px; width:340px; background:var(--card-bg); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow-lg); max-height:420px; display:flex; flex-direction:column; z-index:100; }
.task-popup.minimized { max-height:40px; overflow:hidden; }
.task-popup.minimized .task-popup-body { display:none; }
.task-popup-header { padding:10px 14px; font-weight:600; font-size:13px; border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; flex-shrink:0; }
.task-popup-actions { display:flex; gap:4px; }
.task-popup-actions button { padding:2px 8px; font-size:11px; }
.task-popup-body { overflow-y:auto; flex:1; }
.task-popup-footer { padding:6px 14px; border-top:1px solid var(--border); flex-shrink:0; display:flex; justify-content:center; }
.task-popup-badge { position:absolute; top:-4px; right:-4px; background:#ef4444; color:#fff; font-size:10px; font-weight:700; min-width:16px; height:16px; border-radius:8px; display:flex; align-items:center; justify-content:center; padding:0 4px; }
.task-popup-icon-btn { position:fixed; right:16px; bottom:16px; width:48px; height:48px; border-radius:50%; background:var(--primary); color:#fff; border:none; box-shadow:var(--shadow-lg); cursor:pointer; display:flex; align-items:center; justify-content:center; font-size:20px; z-index:99; transition:transform 0.15s; }
.task-popup-icon-btn:hover { transform:scale(1.05); }
.task-popup-icon-btn .task-popup-badge { position:absolute; top:-2px; right:-2px; }
.task-item { padding:10px 14px; border-bottom:1px solid #f1f5f9; font-size:12px; }
.task-item:last-child { border-bottom:none; }
.task-item-header { display:flex; justify-content:space-between; align-items:center; }
.task-type-label { font-weight:600; color:var(--text); }
.task-status-text { font-size:11px; font-weight:600; }
.task-status-pending { color:#9ca3af; }
.task-status-running { color:var(--primary); }
.task-status-success { color:#10b981; }
.task-status-failed { color:#ef4444; }
.task-status-canceled { color:#f59e0b; }
.task-file-name { margin-top:4px; color:var(--text); font-size:12px; word-break:break-all; }
.task-route { margin-top:2px; color:var(--text-secondary); font-size:11px; }
.task-progress-text { margin-top:4px; color:var(--text-secondary); font-size:11px; }
.task-error { margin-top:4px; color:#ef4444; font-size:11px; word-break:break-all; }
.task-action-area { display:flex; gap:6px; margin-top:6px; }
.task-action-area button { padding:3px 8px; font-size:11px; }
.task-retry { color:var(--primary); border-color:var(--primary-light); }
.task-retry:hover { background:var(--primary-light); }
.task-delete { color:#ef4444; border-color:#fecaca; }
.task-delete:hover { background:#fee2e2; }
/* 上传任务项（内联在弹窗内，更紧凑） */
.upload-task-item { padding:8px 14px; border-bottom:1px solid #f1f5f9; font-size:12px; }
.upload-task-item .task-item-header { display:flex; justify-content:space-between; align-items:center; }
.upload-task-item .task-file-name { margin-top:2px; color:var(--text); font-size:12px; word-break:break-all; }
.upload-task-item .progress-bar { height:3px; background:var(--border); border-radius:2px; margin-top:4px; overflow:hidden; }
.upload-task-item .progress-bar-fill { height:100%; background:var(--primary); transition:width 0.3s ease; }
.upload-task-item .task-progress-text { margin-top:2px; color:var(--text-secondary); font-size:11px; }
.progress-bar { height:4px; background:var(--border); border-radius:2px; margin-top:6px; overflow:hidden; }
.progress-bar-fill { height:100%; background:var(--primary); transition:width 0.3s ease; }

/* 毛玻璃弹窗 */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,0.3); display:flex; align-items:center; justify-content:center; z-index:200; backdrop-filter:blur(4px); -webkit-backdrop-filter:blur(4px); }
.modal { background:var(--card-bg); border-radius:12px; box-shadow:var(--shadow-lg); max-width:520px; width:90%; max-height:85vh; overflow-y:auto; }
.modal-header { padding:16px 20px; font-weight:700; font-size:15px; border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; }
.modal-body { padding:20px; }
.modal-footer { padding:12px 20px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:8px; }

/* 表单 */
.form-item { margin-bottom:14px; }
.form-item label { display:block; margin-bottom:6px; font-size:13px; font-weight:600; color:var(--text); }
.form-item input, .form-item select, .form-item textarea { width:100%; padding:8px 12px; border:1px solid var(--border); border-radius:6px; font-size:13px; outline:none; transition:border-color 0.15s; }
.form-item input:focus, .form-item select:focus { border-color:var(--primary); }

/* 登录页 */
.login-page { height:100vh; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,#667eea76,#764ba276); }
.login-card { background:rgba(255,255,255,0.95); backdrop-filter:blur(12px); border-radius:16px; box-shadow:var(--shadow-lg); padding:32px; width:380px; }
.login-card h2 { text-align:center; margin-bottom:24px; color:var(--text); }
.login-card .form-item input { padding:10px 14px; }
.login-card button { width:100%; padding:10px; font-size:14px; }

/* 右键菜单 */
.context-menu { position:fixed; background:var(--card-bg); border:1px solid var(--border); border-radius:8px; box-shadow:var(--shadow-lg); z-index:500; min-width:160px; overflow:hidden; }
.context-menu div { padding:8px 14px; cursor:pointer; font-size:13px; }
.context-menu div:hover { background:var(--hover); }
.context-menu .divider { height:1px; background:var(--border); margin:4px 0; padding:0; }

/* 杂项 */
.hidden { display:none !important; }
.empty-state { text-align:center; padding:48px 16px; color:var(--text-secondary); font-size:14px; }
.file-icon { width:18px; height:18px; flex-shrink:0; }
.upload-zone { border:2px dashed var(--border); border-radius:var(--radius); padding:32px; text-align:center; cursor:pointer; transition:all 0.15s; }
.upload-zone:hover, .upload-zone.dragover { border-color:var(--primary); background:var(--primary-light); }
.toast { position:fixed; top:16px; right:16px; padding:10px 16px; background:var(--card-bg); border:1px solid var(--border); border-radius:8px; box-shadow:var(--shadow-lg); z-index:300; font-size:13px; animation:slideIn 0.2s; }
.toast.success { border-left:3px solid #10b981; }
.toast.error { border-left:3px solid #ef4444; }
@keyframes slideIn { from{transform:translateX(100%);opacity:0} to{transform:translateX(0);opacity:1} }

/* 管理面板 */
.admin-container { max-width:900px; margin:0 auto; padding:24px; }
.admin-card { background:var(--card-bg); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); margin-bottom:16px; }
.admin-card-header { padding:14px 18px; font-weight:600; border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; }
.admin-card-body { padding:18px; }
.admin-table { width:100%; border-collapse:collapse; font-size:13px; }
.admin-table th { text-align:left; padding:8px 12px; color:var(--text-secondary); border-bottom:1px solid var(--border); }
.admin-table td { padding:8px 12px; border-bottom:1px solid #f1f5f9; }
.admin-table tr:hover { background:var(--hover); }

/* 代理下载条 */
.proxy-dl-bar { padding:8px 16px; background:var(--card-bg); border-bottom:1px solid var(--border); flex-shrink:0; display:flex; flex-direction:column; gap:6px; }
.proxy-dl-row { display:flex; gap:6px; align-items:center; }
.proxy-dl-input { flex:1; padding:7px 12px; border:1px solid var(--border); border-radius:6px; font-size:13px; outline:none; transition:border-color 0.15s; min-width:0; }
.proxy-dl-input:focus { border-color:var(--primary); }
.proxy-dl-label { font-size:12px; color:var(--text-secondary); white-space:nowrap; }
.proxy-dl-select { padding:6px 10px; border:1px solid var(--border); border-radius:6px; font-size:13px; background:var(--card-bg); outline:none; max-width:160px; }
.proxy-dl-path { width:140px; padding:6px 10px; border:1px solid var(--border); border-radius:6px; font-size:13px; outline:none; transition:border-color 0.15s; }
.proxy-dl-path:focus { border-color:var(--primary); }
.proxy-dl-select-sm { padding:6px 10px; border:1px solid var(--border); border-radius:6px; font-size:13px; background:var(--card-bg); outline:none; }
.proxy-dl-toggle { padding:4px 10px; font-size:12px; white-space:nowrap; }

/* 手机适配 */
@media (max-width: 860px) {
    body { overflow-x:hidden; overflow-y:auto; height:auto; min-height:100vh; -webkit-overflow-scrolling:touch; }
    .layout { flex-direction:column; height:auto; min-height:100vh; }
    .sidebar { width:100%; height:auto; border-right:none; border-bottom:1px solid var(--border); flex-shrink:0; }
    .sidebar-header { padding:8px 12px; font-size:13px; }
    .sidebar-header svg { display:none; }
    .sidebar-items { display:flex; flex-direction:row; overflow-x:auto; padding:6px 8px; gap:6px; -webkit-overflow-scrolling:touch; }
    .sidebar-item { white-space:nowrap; padding:6px 10px; font-size:13px; flex-shrink:0; }
    .sidebar-item .badge { display:none; }
    .main-panel { flex:1; min-height:0; min-width:0; overflow:hidden; }
    .topbar { height:44px; padding:0 10px; gap:6px; }
    .topbar-brand { display:none; }
    .topbar-nav a { padding:4px 8px; font-size:12px; }
    .topbar-user { font-size:12px; }
    .breadcrumb { padding:6px 10px; font-size:12px; }
    .toolbar { padding:6px 8px; gap:4px; overflow-x:auto; flex-wrap:nowrap; -webkit-overflow-scrolling:touch; }
    .toolbar button { padding:5px 9px; font-size:12px; flex-shrink:0; }
    #file-container { padding:6px 8px; -webkit-overflow-scrolling:touch; }
    .file-table .col-date { display:none; }
    .file-table td, .file-table th { padding:6px 8px; }
    .file-table .col-op { display:none; }
    .card-view { grid-template-columns:repeat(auto-fill,minmax(84px,1fr)); gap:4px; }
    .task-popup { width:auto; left:8px; right:8px; bottom:8px; max-height:300px; }
    .task-popup-icon-btn { right:8px; bottom:8px; }
    .modal { width:94%; max-width:94vw; max-height:90vh; }
    .modal-body { padding:12px; }
    .admin-container { padding:12px; max-width:100%; min-width:0; overflow-x:hidden; }
    .admin-card { min-width:0; max-width:100%; }
    .admin-card-body { padding:10px; overflow-wrap:break-word; word-wrap:break-word; min-width:0; overflow-x:hidden; }
    .admin-card-body p, .admin-card-body li, .admin-card-body code { word-break:break-word; }
    .admin-table { width:100%; min-width:0; }
    /* 表格横向滚动包装器：用 max-width 约束在父容器内，内部表格 min-width 撑开实现横向滚动 */
    .table-scroll-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; max-width:100%; width:100%; }
    .table-scroll-wrap .admin-table { min-width:600px; }
    .login-card { width:90%; max-width:380px; padding:24px; }
    /* 代理下载条手机适配 */
    .proxy-dl-bar { padding:6px 8px; }
    .proxy-dl-row { flex-wrap:wrap; }
    .proxy-dl-input { width:100%; flex:none; }
    .proxy-dl-row #btn-proxy-go { width:100%; }
    .proxy-dl-label { display:none; }
    .proxy-dl-select { max-width:none; flex:1; min-width:0; }
    .proxy-dl-path { width:100%; flex:none; }
    .proxy-dl-select-sm { flex:1; min-width:0; }
    .proxy-dl-toggle { flex:none; }
  }