/* ═══════════════════════════════════════════════
   EdgeOps - 深色科技感 UI 样式
   以 SSH 为操作方式的远程 AI 运维系统（参考 IOTHub）
   ═══════════════════════════════════════════════ */

/* ── 基础重置 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-primary: #0b1020;
    --bg-secondary: #111827;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-input: rgba(15, 23, 42, 0.8);
    --border: rgba(100, 116, 139, 0.3);
    --border-hover: rgba(59, 130, 246, 0.5);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --transition: all 0.2s ease;
    --scrollbar-track: rgba(15, 23, 42, 0.48);
    --scrollbar-thumb: rgba(100, 116, 139, 0.52);
    --scrollbar-thumb-hover: rgba(148, 163, 184, 0.72);
    --edgeops-mobile-app-height: 100vh;
}

.text-muted { color: var(--text-muted); }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: radial-gradient(circle at top, #1e293b, #0b1020);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
}

html {
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
}

body::-webkit-scrollbar,
html::-webkit-scrollbar,
.sidebar-nav::-webkit-scrollbar,
.chat-messages::-webkit-scrollbar,
.chat-diagram-canvas::-webkit-scrollbar,
.chat-diagram-source::-webkit-scrollbar,
.edgeops-diagram-preview-scroll::-webkit-scrollbar,
.edgeops-diagram-preview-source::-webkit-scrollbar,
.host-ai-log-entries::-webkit-scrollbar,
.ai-log-entries::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

body::-webkit-scrollbar-track,
html::-webkit-scrollbar-track,
.sidebar-nav::-webkit-scrollbar-track,
.chat-messages::-webkit-scrollbar-track,
.chat-diagram-canvas::-webkit-scrollbar-track,
.chat-diagram-source::-webkit-scrollbar-track,
.edgeops-diagram-preview-scroll::-webkit-scrollbar-track,
.edgeops-diagram-preview-source::-webkit-scrollbar-track,
.host-ai-log-entries::-webkit-scrollbar-track,
.ai-log-entries::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 999px;
}

body::-webkit-scrollbar-thumb,
html::-webkit-scrollbar-thumb,
.sidebar-nav::-webkit-scrollbar-thumb,
.chat-messages::-webkit-scrollbar-thumb,
.chat-diagram-canvas::-webkit-scrollbar-thumb,
.chat-diagram-source::-webkit-scrollbar-thumb,
.edgeops-diagram-preview-scroll::-webkit-scrollbar-thumb,
.edgeops-diagram-preview-source::-webkit-scrollbar-thumb,
.host-ai-log-entries::-webkit-scrollbar-thumb,
.ai-log-entries::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--scrollbar-thumb), rgba(71, 85, 105, 0.92));
    border: 2px solid transparent;
    background-clip: padding-box;
    border-radius: 999px;
}

body::-webkit-scrollbar-thumb:hover,
html::-webkit-scrollbar-thumb:hover,
.sidebar-nav::-webkit-scrollbar-thumb:hover,
.chat-messages::-webkit-scrollbar-thumb:hover,
.chat-diagram-canvas::-webkit-scrollbar-thumb:hover,
.chat-diagram-source::-webkit-scrollbar-thumb:hover,
.edgeops-diagram-preview-scroll::-webkit-scrollbar-thumb:hover,
.edgeops-diagram-preview-source::-webkit-scrollbar-thumb:hover,
.host-ai-log-entries::-webkit-scrollbar-thumb:hover,
.ai-log-entries::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--scrollbar-thumb-hover), rgba(100, 116, 139, 0.96));
    border: 2px solid transparent;
    background-clip: padding-box;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── 布局 ── */
#app { display: flex; min-height: 100vh; }
#app:has(.auth-page) { position: relative; min-height: 100vh; height: 100vh; }

.sidebar {
    width: 192px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    transition: width 0.2s ease, padding 0.2s ease;
}
.sidebar.sidebar-collapsed {
    width: 56px;
}
.sidebar.sidebar-collapsed .sidebar-header {
    padding: 12px 8px;
    text-align: center;
}
.sidebar.sidebar-collapsed .sidebar-header h1 {
    font-size: 0;
    line-height: 0;
    overflow: hidden;
}
.sidebar.sidebar-collapsed .sidebar-header h1::first-letter {
    font-size: 18px;
    color: var(--accent);
}
.sidebar.sidebar-collapsed .sidebar-header .subtitle,
.sidebar.sidebar-collapsed .nav-item .nav-item-text,
.sidebar.sidebar-collapsed .sidebar-footer .user-info-line1 .username,
.sidebar.sidebar-collapsed .sidebar-footer .user-info-line1 .user-role,
.sidebar.sidebar-collapsed .sidebar-footer .user-info-line1 .user-info-actions,
.sidebar.sidebar-collapsed .sidebar-footer .user-info-line2,
.sidebar.sidebar-collapsed .sidebar-version {
    display: none;
}
.sidebar.sidebar-collapsed .nav-item {
    justify-content: center;
    padding: 10px 8px;
}
.sidebar.sidebar-collapsed .nav-item .icon {
    margin: 0;
}
.sidebar.sidebar-collapsed .sidebar-footer {
    padding: 12px 8px;
    text-align: center;
}
.sidebar.sidebar-collapsed .sidebar-footer .user-info-line1 {
    justify-content: center;
}
.sidebar-toggle {
    position: absolute;
    top: 50%;
    right: -12px;
    width: 24px;
    height: 24px;
    margin-top: -12px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    z-index: 101;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    transition: color 0.15s, background 0.15s;
}
.sidebar-toggle:hover {
    color: var(--accent);
    background: var(--bg-secondary);
}
.sidebar.sidebar-collapsed .sidebar-toggle {
    right: -12px;
}
.sidebar-toggle .chevron {
    display: inline-block;
    transition: transform 0.2s ease;
}
.sidebar.sidebar-collapsed .sidebar-toggle .chevron {
    transform: rotate(180deg);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.sidebar-header h1 {
    font-size: 20px;
    color: var(--accent);
    letter-spacing: 2px;
}

.sidebar-header .subtitle {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.sidebar-nav { flex: 1; padding: 4px 0; overflow-y: auto; }

.nav-item {
    display: flex;
    align-items: center;
    padding: 5px 20px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
    gap: 10px;
    font-size: 14px;
}

.nav-item:hover { background: rgba(59, 130, 246, 0.1); color: var(--text-primary); }
.nav-item.active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent);
    border-left-color: var(--accent);
}

.nav-item .icon { width: 20px; margin-right: 8px; text-align: center; font-size: 16px; flex-shrink: 0; }

.nav-divider { height: 1px; background: var(--border); margin: 4px 16px; }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
}

.sidebar-footer .user-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-footer .user-info-line1 {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}
.sidebar-footer .user-info-actions {
    white-space: nowrap;
}

.sidebar-footer .user-info-line2 {
    font-size: 11px;
    color: var(--text-muted);
}

.sidebar-footer .user-info-line2 .user-email {
    word-break: break-all;
}

.sidebar-footer .username {
    color: var(--text-secondary);
    font-weight: 500;
}

.sidebar-footer .user-role {
    color: var(--text-muted);
    font-size: 11px;
}

.sidebar-footer .sidebar-version {
    margin-top: 8px;
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.8;
}

.mobile-quick-actions {
    display: none;
}

.main-content {
    margin-left: 192px;
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.2s ease;
}
.sidebar.sidebar-collapsed + .main-content {
    margin-left: 56px;
}
/* AI 助手页：主内容区不随聊天/终端内容拉长，仅内部滚动 */
.main-content:has(.ai-page-layout) {
    max-height: 100vh;
    overflow: hidden;
}
/* 文件系统页：主内容区限制高度，编辑区充满剩余空间 */
.main-content:has(.fs-layout) {
    max-height: 100vh;
    overflow: hidden;
}
#page-content:has(.fs-layout) .topbar { flex-shrink: 0; }
#page-content:has(.chat-layout) {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    max-height: 100vh;
    overflow: hidden;
}
#page-content:has(.chat-layout) .topbar { flex-shrink: 0; }

/* ── 顶部栏 ── */
.topbar {
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
}

.topbar h2 { font-size: 16px; font-weight: 600; }

.topbar-actions { display: flex; align-items: center; gap: 8px; }

/* ── 页面内容 ── */
.page-content { padding: 14px 18px; }

/* ── 卡片 ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    padding: 12px 14px;
    margin-bottom: 10px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 { font-size: 15px; font-weight: 600; }

/* ── 统计卡片 ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px 14px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.stat-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-card.online .stat-value { color: var(--success); }
.stat-card.offline .stat-value { color: var(--text-muted); }
.stat-card.total .stat-value { color: var(--accent); }
.stat-card.warning .stat-value { color: var(--warning); }

.dashboard-charts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 14px;
}
.dashboard-chart-card .card-header { padding: 10px 14px; }
.dashboard-chart-card .chart-wrap {
    min-height: 180px;
    padding: 8px 14px 14px;
}
.dashboard-svg { width: 100%; height: 180px; display: block; }
.dashboard-svg .chart-label { font-size: 11px; fill: var(--text-muted); }
.dashboard-svg .chart-axis { font-size: 11px; fill: var(--text-muted); }
@media (max-width: 900px) {
    .dashboard-charts { grid-template-columns: 1fr; }
}

/* ── 表格 ── */
.table-container { overflow-x: auto; }

/* 定时/触发任务「执行历史」：避免摘要列被挤成 0 宽，便于横向滚动查看 */
table.task-run-history-table {
    table-layout: auto;
    width: max-content;
}
table.task-run-history-table .task-run-log-summary {
    min-width: 260px;
    max-width: min(520px, 55vw);
    word-break: break-word;
}

/* 列表表格：前几列不换行避免短内容折叠，最后一列可换行 */
.list-table { table-layout: auto; width: 100%; }
.list-table th, .list-table td { vertical-align: top; }
.list-table th:nth-child(1), .list-table td:nth-child(1) { white-space: nowrap; min-width: 140px; }
.list-table th:nth-child(2), .list-table td:nth-child(2) { white-space: nowrap; min-width: 80px; }
.list-table th:nth-child(3), .list-table td:nth-child(3) { white-space: nowrap; min-width: 100px; }
.list-table th:last-child, .list-table td:last-child { white-space: normal; word-break: break-word; min-width: 120px; max-width: 400px; }
.table-filter-row td { padding: 2px 8px; vertical-align: middle; }
.table-filter-row .table-filter-input { width: 100%; max-width: 140px; padding: 4px 8px; font-size: 12px; }
table.sortable-table th[data-sort] { cursor: pointer; user-select: none; }
table.sortable-table th[data-sort]:hover { color: var(--accent); }
table.sortable-table th[data-sort-dir]::after { content: ' \u2195'; font-size: 10px; color: var(--text-muted); }
table.sortable-table th[data-sort-dir="asc"]::after { content: ' \u2191'; }
table.sortable-table th[data-sort-dir="desc"]::after { content: ' \u2193'; }

.fs-name {
    cursor: pointer;
    color: var(--accent);
    text-decoration: none;
}
.fs-name:hover { text-decoration: underline; }

/* ── 设备文件系统双栏（参考 NanoESP32 /fs）── */
.fs-layout {
    display: grid;
    grid-template-columns: minmax(0, 280px) 1fr;
    gap: 16px;
    min-height: min(600px, calc(100vh - 220px));
    align-items: stretch;
}
.fs-sidebar {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    overflow-y: auto;
}
.fs-main {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
}
.fs-toolbar-bar {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    padding: 8px 12px;
    background: var(--bg-input);
    border-radius: var(--radius);
}
.fs-toolbar-bar .fs-path {
    flex: 1;
    min-width: 120px;
    padding: 6px 10px;
    font-family: monospace;
    font-size: 13px;
}
.fs-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-input);
}
.fs-placeholder {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 24px;
}
.fs-editor-wrap {
    flex: 1;
    display: none;
    flex-direction: row;
    gap: 16px;
    min-height: 0;
    padding: 12px;
}
.fs-editor-wrap.visible { display: flex; }
.fs-editor-wrap.has-lua-output { display: none; grid-template-columns: 1fr minmax(260px, 340px); gap: 16px; }
.fs-editor-wrap.visible.has-lua-output { display: grid; }
.fs-editor {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.fs-editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.fs-editor-title { font-size: 14px; font-weight: 600; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fs-editor-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.fs-lua-run-group {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: var(--radius);
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
}
.fs-lua-args {
    width: 160px;
    padding: 6px 8px;
    font-size: 12px;
    font-family: monospace;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text-primary);
}
.fs-editor-content-wrap {
    flex: 1;
    min-height: 200px;
    position: relative;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-input);
}
.fs-editor-content {
    width: 100%;
    min-height: 280px;
    height: 100%;
    padding: 12px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    border: none;
    background: transparent;
    color: var(--text-primary);
    resize: none;
    white-space: pre-wrap;
    word-wrap: break-word;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}
.fs-editor-content:focus { outline: none; }
/* 高亮层与 textarea 同步滚动，但隐藏自身滚动条，避免双滚动条（与 NanoESP32 lua-editor-lite 一致） */
.fs-editor-highlight {
    position: absolute;
    top: 12px; left: 12px; right: 12px; bottom: 12px;
    margin: 0; padding: 12px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px; line-height: 1.5;
    white-space: pre-wrap; word-wrap: break-word;
    color: var(--text-primary);
    background: transparent;
    pointer-events: none;
    overflow: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    z-index: 0;
}
.fs-editor-highlight::-webkit-scrollbar {
    width: 0;
    height: 0;
}
/* 与 NanoESP32 lua-editor-lite.css 一致 */
.fs-editor-highlight .lua-lite-k { color: #c084fc; }
.fs-editor-highlight .lua-lite-s { color: #86efac; }
.fs-editor-highlight .lua-lite-c { color: #94a3b8; font-style: italic; }
.fs-editor-highlight .lua-lite-n { color: #fcd34d; }
/* Lua 模式：与 NanoESP32 一致，textarea 绝对定位叠在高亮层上，仅 textarea 滚动；透明字显高亮 */
.fs-editor-content.lua-mode {
    position: absolute;
    top: 12px; left: 12px; right: 12px; bottom: 12px;
    width: auto; height: auto; min-height: 0;
    color: transparent !important;
    caret-color: #38bdf8;
}
.fs-editor-content.lua-mode::selection {
    background: rgba(56, 189, 248, 0.35);
}
.fs-md-toolbar { display: none; gap: 8px; margin-bottom: 4px; }
.fs-md-toolbar.visible { display: inline-flex; }
.fs-md-toolbar .btn-md-mode { padding: 4px 10px; font-size: 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg-input); color: var(--text-secondary); cursor: pointer; }
.fs-md-toolbar .btn-md-mode:hover { color: var(--text-primary); }
.fs-md-toolbar .btn-md-mode.active { background: rgba(59,130,246,0.2); color: var(--accent); border-color: var(--accent); }
#fsMdPreview {
    display: none;
    flex: 1;
    min-height: 200px;
    overflow: auto;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
}
#fsMdPreview.visible { display: block; }
#fsMdPreview.hidden { display: none !important; }
.fs-md-preview h1, .fs-md-preview h2, .fs-md-preview h3 { color: var(--text-primary); margin: 1em 0 0.5em; font-weight: 600; }
.fs-md-preview h1 { font-size: 1.4em; }
.fs-md-preview h2 { font-size: 1.2em; }
.fs-md-preview p { margin: 0.6em 0; }
.fs-md-preview code { background: rgba(30,41,59,0.9); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; color: #38bdf8; }
.fs-md-preview pre { background: rgba(30,41,59,0.9); padding: 12px; border-radius: 8px; overflow-x: auto; margin: 0.6em 0; }
.fs-md-preview pre code { background: none; padding: 0; }
.fs-md-preview a { color: var(--accent); }
.fs-lua-output {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 200px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
}
.fs-lua-output-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 13px; }
.fs-lua-output-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; min-height: 100px; }
.fs-lua-output-item { padding: 8px 10px; border-radius: var(--radius); background: rgba(15,23,42,0.6); border: 1px solid var(--border); font-family: monospace; font-size: 12px; white-space: pre-wrap; word-break: break-word; }
.fs-lua-output-item.error { border-color: rgba(239,68,68,0.5); background: rgba(239,68,68,0.1); color: #fca5a5; }
.fs-lua-output-item .time { color: var(--text-muted); font-size: 11px; margin-bottom: 4px; }
.fs-lua-output-item .fs-output-error-line { color: #f87171; font-weight: 600; }
.tree-item {
    padding: 3px 8px;
    cursor: pointer;
    border-radius: 4px;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}
.tree-item:hover { background: rgba(59,130,246,0.12); }
.tree-item.selected { background: rgba(59,130,246,0.22); color: var(--accent); }
.tree-item.file { color: var(--text-muted); }
.tree-toggle { width: 16px; text-align: center; cursor: pointer; color: var(--text-muted); font-size: 12px; }
.tree-children { margin-left: 14px; display: none; }
.tree-children.expanded { display: block; }

.fs-layout .context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    box-shadow: var(--shadow);
    z-index: 1000;
    min-width: 120px;
}
.fs-layout .context-menu-item {
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 13px;
}
.fs-layout .context-menu-item:hover {
    background: rgba(59, 130, 246, 0.15);
}

.device-context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    box-shadow: var(--shadow);
    z-index: 1000;
    min-width: 120px;
}
.device-context-menu-item {
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 13px;
}
.device-context-menu-item:hover {
    background: rgba(59, 130, 246, 0.15);
}
.join-group-item:hover {
    background: var(--bg-secondary) !important;
    color: var(--accent);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead th {
    text-align: left;
    padding: 5px 12px;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tbody td {
    padding: 5px 12px;
    border-bottom: 1px solid rgba(100,116,139,0.1);
    vertical-align: middle;
}

tbody tr { transition: var(--transition); }
tbody tr:hover { background: rgba(59, 130, 246, 0.05); }

/* ── 按钮（统一小规格） ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:hover { border-color: var(--border-hover); background: rgba(59,130,246,0.1); }

.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }

.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }

.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-warning { background: var(--warning); border-color: var(--warning); color: #000; }

.btn-sm { padding: 3px 8px; font-size: 12px; } /* 与 .btn 同规格，保留以兼容 */
.btn-lg { padding: 8px 16px; font-size: 14px; } /* 仅登录/注册等需稍大时使用 */

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── 表单 ── */
.form-group { margin-bottom: 10px; }

.form-group label {
    display: block;
    margin-bottom: 4px;
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
    outline: none;
}

.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(59,130,246,0.2); }
.form-hint { display: block; margin-top: 4px; font-size: 11px; color: var(--text-muted); }

select.form-control { cursor: pointer; }

textarea.form-control { min-height: 100px; resize: vertical; font-family: inherit; }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* ── 状态标签 ── */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.badge-online { background: rgba(16,185,129,0.2); color: var(--success); }
.badge-offline { background: rgba(100,116,139,0.2); color: var(--text-muted); }
.badge-unknown { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-admin { background: rgba(59,130,246,0.2); color: var(--accent); }
.badge-user { background: rgba(100,116,139,0.2); color: var(--text-secondary); }
.badge-success { background: rgba(16,185,129,0.2); color: var(--success); }
.badge-danger { background: rgba(239,68,68,0.2); color: var(--danger); }
.badge-warning { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-info { background: rgba(6,182,212,0.2); color: var(--info); }
.badge-pending { background: rgba(100,116,139,0.2); color: var(--text-secondary); }
.badge-running { background: rgba(59,130,246,0.2); color: var(--accent); }
.badge-muted { background: rgba(100,116,139,0.2); color: var(--text-muted); }

/* ── 设备卡片网格 ── */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.device-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.device-card:hover { border-color: var(--border-hover); transform: translateY(-2px); box-shadow: var(--shadow); }

.device-card .device-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.device-card .device-name {
    font-weight: 600;
    font-size: 15px;
}

.device-card .device-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.device-card .info-item { display: flex; flex-direction: column; }
.device-card .info-label { color: var(--text-muted); font-size: 11px; }

/* ── 模态框 ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    min-width: 400px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
}

/* 最佳实践编辑窗：比默认模态显著更宽，便于长文本编辑 */
.modal-best-practice {
    width: min(92vw, 1080px);
    max-width: min(92vw, 1080px);
}

/* 会话级提示词弹窗：约占页面宽高一半，内容区可伸缩 */
.modal-session-prompt {
    width: 50vw;
    max-width: 50vw;
    height: 50vh;
    max-height: 50vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.modal-session-prompt .modal-body {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.modal-session-prompt .modal-body textarea {
    flex: 1;
    min-height: 120px;
    resize: none;
}
.modal-session-prompt .session-prompt-toolbar {
    flex-shrink: 0;
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}
.modal-session-prompt .session-prompt-toolbar .btn.active {
    font-weight: 600;
    border-color: var(--primary);
}
.modal-session-prompt #hostAiSessionPromptEditWrap,
.modal-session-prompt #aiSessionPromptEditWrap,
.modal-session-prompt #localAiSessionPromptEditWrap {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.modal-session-prompt .session-prompt-preview,
.host-detail-prompt-form .session-prompt-preview {
    flex: 1;
    min-height: 120px;
    overflow-y: auto;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-secondary);
    font-size: 14px;
    line-height: 1.5;
}
.modal-session-prompt .session-prompt-preview h1,
.modal-session-prompt .session-prompt-preview h2,
.modal-session-prompt .session-prompt-preview h3,
.host-detail-prompt-form .session-prompt-preview h1,
.host-detail-prompt-form .session-prompt-preview h2,
.host-detail-prompt-form .session-prompt-preview h3 {
    margin-top: 0.75em;
    margin-bottom: 0.35em;
}
.modal-session-prompt .session-prompt-preview ul,
.modal-session-prompt .session-prompt-preview ol,
.host-detail-prompt-form .session-prompt-preview ul,
.host-detail-prompt-form .session-prompt-preview ol {
    margin: 0.5em 0;
    padding-left: 1.5em;
}
.modal-session-prompt .session-prompt-preview pre,
.modal-session-prompt .session-prompt-preview code,
.host-detail-prompt-form .session-prompt-preview pre,
.host-detail-prompt-form .session-prompt-preview code {
    background: var(--bg-tertiary);
    border-radius: 4px;
}
.modal-session-prompt .session-prompt-preview pre,
.host-detail-prompt-form .session-prompt-preview pre {
    padding: 10px;
    overflow-x: auto;
}
.modal-session-prompt .modal-actions {
    flex-shrink: 0;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 16px; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 20px;
    padding: 4px;
}

.modal-close:hover { color: var(--text-primary); }

.modal-body { padding: 20px; }
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

/* ── 进度条 ── */
.progress-bar {
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar .progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
    background: linear-gradient(90deg, var(--accent), var(--success));
}

/* ── Toast 通知 ── */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
    animation: slideIn 0.3s ease;
    font-size: 13px;
    max-width: 400px;
}

.toast-success { background: rgba(16,185,129,0.15); border-color: var(--success); color: var(--success); }
.toast-error { background: rgba(239,68,68,0.15); border-color: var(--danger); color: var(--danger); }
.toast-info { background: rgba(59,130,246,0.15); border-color: var(--accent); color: var(--accent); }

@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── 登录页 ── */
@keyframes authBgShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
@keyframes authCardIn {
    from { opacity: 0; transform: translateY(-20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes authShine {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.auth-page {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100vh;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 400px 1fr;
    grid-template-rows: 1fr;
    background: radial-gradient(ellipse at left 30%, #1e293b 0%, #0f172a 50%, #0b1020 100%);
    background-size: 200% 200%;
    animation: authBgShift 12s ease-in-out infinite;
}

.auth-page .auth-card-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    min-width: 0;
}
.auth-page .auth-card-wrap .auth-card {
    animation: authCardIn 0.5s ease-out forwards;
}
.auth-page .auth-card-wrap .auth-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(120deg, transparent, rgba(59, 130, 246, 0.25), transparent 60%);
    background-size: 200% 100%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.auth-page .auth-card-wrap .auth-card:focus-within::before,
.auth-page .auth-card-wrap .auth-card:hover::before {
    opacity: 1;
    animation: authShine 3s linear infinite;
}

.auth-page .auth-visual {
    position: relative;
    overflow: hidden;
    min-width: 0;
    width: 100%;
    height: 100%;
    min-height: 100%;
    background: #0b1020;
}

.auth-page #authCanvas {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}

.auth-page .auth-announcement {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 4;
    width: min(420px, calc(100% - 48px));
    max-height: 34vh;
    overflow: auto;
    padding: 14px 16px;
    border: 1px solid rgba(120, 160, 255, 0.28);
    border-radius: 16px;
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(10px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    color: #e5edff;
}
.auth-page .auth-announcement-title {
    margin-bottom: 8px;
    color: #93c5fd;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
}
.auth-page .auth-announcement-body {
    font-size: 13px;
    line-height: 1.7;
}
.auth-page .auth-announcement-body p:last-child,
.auth-page .auth-announcement-body ul:last-child,
.auth-page .auth-announcement-body ol:last-child {
    margin-bottom: 0;
}

/* 登录页右侧——产品介绍大号 CTA（垂直居中、强吸睛） */
.auth-page .auth-intro-cta {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 22px 44px;
    min-width: 280px;
    text-align: center;
    text-decoration: none;
    color: #fff;
    background: linear-gradient(135deg, #ff9a3c 0%, #ff6b6b 55%, #c084ff 100%);
    border: 1px solid rgba(255, 217, 168, 0.55);
    border-radius: 999px;
    box-shadow:
        0 18px 50px rgba(255, 154, 60, 0.45),
        0 0 0 6px rgba(255, 154, 60, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
    animation: authIntroPulse 2.4s ease-in-out infinite;
    cursor: pointer;
    user-select: none;
}
.auth-page .auth-intro-cta:hover {
    transform: translate(-50%, -50%) scale(1.04);
    box-shadow:
        0 26px 64px rgba(255, 154, 60, 0.6),
        0 0 0 10px rgba(255, 154, 60, 0.16),
        inset 0 1px 0 rgba(255, 255, 255, 0.45);
    filter: brightness(1.05);
}
.auth-page .auth-intro-cta:active {
    transform: translate(-50%, -50%) scale(0.98);
}
.auth-page .auth-intro-cta-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}
.auth-page .auth-intro-cta-title {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: 6px;
    line-height: 1.1;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}
.auth-page .auth-intro-cta-sub {
    font-size: 14px;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
@keyframes authIntroPulse {
    0%, 100% {
        box-shadow:
            0 18px 50px rgba(255, 154, 60, 0.45),
            0 0 0 6px rgba(255, 154, 60, 0.12),
            inset 0 1px 0 rgba(255, 255, 255, 0.35);
    }
    50% {
        box-shadow:
            0 22px 56px rgba(255, 154, 60, 0.6),
            0 0 0 14px rgba(255, 154, 60, 0.10),
            inset 0 1px 0 rgba(255, 255, 255, 0.45);
    }
}

.auth-page .auth-visual-label {
    position: absolute;
    right: 32px;
    bottom: 32px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 4px;
    color: rgba(56, 189, 248, 0.5);
    pointer-events: none;
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}
.auth-page .auth-visual-label span { opacity: 0.85; }
.auth-page .auth-visual-label .dot { margin: 0 6px; opacity: 0.5; }

.auth-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 400px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.auth-card:focus-within,
.auth-card:hover {
    box-shadow: var(--shadow), 0 0 24px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.4);
}

.auth-card h1 {
    text-align: center;
    margin-bottom: 8px;
    color: var(--accent);
    font-size: 24px;
    letter-spacing: 3px;
}

.auth-card .auth-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 32px;
}

.auth-card .form-control { padding: 10px 14px; }

.auth-card .btn { width: 100%; justify-content: center; padding: 10px; font-size: 15px; }
.auth-card .btn.auth-captcha-refresh { width: auto; padding: 0 10px; font-size: 12px; min-width: 0; line-height: 1; }

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-muted);
}

.auth-version {
    text-align: center;
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

/* ── 主机详情：Tab（AI运维 / 命令执行 / 详情） ── */
.host-detail-page {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.main-content:has(.host-detail-page) {
    max-height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.main-content:has(.host-detail-page) #page-content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.host-detail-tabs {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
    padding: 6px 0 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}
.host-detail-tab {
    padding: 6px 14px;
    font-size: 13px;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: var(--radius) var(--radius) 0 0;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    margin-bottom: -1px;
    transition: var(--transition);
}
.host-detail-tab:hover {
    color: var(--text-primary);
    background: rgba(59, 130, 246, 0.06);
}
.host-detail-tab.active {
    color: var(--accent);
    background: var(--bg-card);
    border-color: var(--border);
    border-bottom: 1px solid var(--bg-card);
    font-weight: 500;
}
.host-detail-tab-panel {
    display: none;
    flex: 1;
    min-height: 0;
    flex-direction: column;
    overflow: hidden;
}
.host-detail-tab-panel.active {
    display: flex;
}
/* 「详情」Tab：多卡片 + 长表单纵向堆叠，须在面板内滚动，避免底部按钮被裁切 */
.host-detail-tab-panel#hostDetailTabDetail {
    overflow-x: hidden;
    overflow-y: auto;
    align-items: stretch;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 24px;
    box-sizing: border-box;
}
.host-detail-tab-panel#hostDetailTabAi .host-ai-panel {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.host-detail-exec-card {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.host-detail-exec-form {
    flex-shrink: 0;
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}
.host-detail-exec-form .form-group {
    flex: 1;
    min-width: 200px;
    margin-bottom: 0;
}

/* 主机详情中「整段编辑卡」（如主机级 AI 提示词）专用容器：
   竖向堆叠、子元素强制 100% 宽，textarea 给足高度并允许垂直拉伸/滚动。
   原来误用 .host-detail-exec-form 会被那条 flex 规则挤成窄条、内容显示不全。 */
.host-detail-prompt-form {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.host-detail-prompt-form > * {
    width: 100%;
    box-sizing: border-box;
}
.host-detail-prompt-form textarea.form-control {
    width: 100%;
    min-height: 260px;
    max-height: 60vh;
    resize: vertical;
    overflow: auto;
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
    line-height: 1.5;
}
.host-detail-prompt-form .session-prompt-preview {
    min-height: 200px;
    max-height: 60vh;
    overflow: auto;
}
.host-tag-edit-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 8px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-input);
    min-height: 40px;
}
.host-detail-exec-output-wrap {
    flex: 1 1 0;
    min-height: 0;
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.host-detail-exec-output-wrap pre {
    flex: 1;
    min-height: 0;
    margin: 0;
    padding: 12px;
    background: var(--bg-input);
    border-radius: var(--radius);
    font-size: 12px;
    white-space: pre-wrap;
    overflow: auto;
}
.host-ai-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    padding: 8px;
}
.host-ai-panel .ai-page-layout {
    flex: 1;
    min-height: 0;
    display: flex;
    gap: 6px;
}
.host-ai-panel .chat-history-list-wrap.open {
    max-height: none;
    flex: 1;
}

/* ── AI 聊天 ── */
#page-content:has(.chat-layout) .chat-layout {
    flex: 1;
    min-height: 0;
    height: calc(100vh - 56px);
    max-height: calc(100vh - 56px);
}
.chat-layout { display: flex; gap: 16px; flex: 1; min-height: 0; }
.chat-history-panel {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    max-height: 100%;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}
.chat-history-header {
    padding: 6px 10px; font-size: 13px; font-weight: 600; color: var(--text-primary);
    border-bottom: 1px solid var(--border); cursor: pointer; display: flex; justify-content: space-between; align-items: center;
    flex-shrink: 0;
}
.chat-history-header-actions { display: flex; align-items: center; gap: 4px; }
.chat-history-chevron { font-size: 10px; color: var(--text-muted); }
/* 外层容器：与页面同高，限制高度后历史再多也不拉长页面 */
.chat-history-list-wrap {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.2s ease-out;
}
.chat-history-list-wrap.open {
    flex: 1;
    min-height: 0;
    max-height: none;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
/* 列表在容器内滚动，仅需要时显示滚动条；高度受限才能出现滚动 */
.chat-history-list {
    flex: 1;
    min-height: 0;
    height: 0;
    overflow-y: auto;
    overflow-x: hidden;
}
.chat-history-empty { padding: 8px 10px; font-size: 12px; color: var(--text-muted); text-align: center; }
.chat-history-item {
    padding: 2px 10px; border-bottom: 1px solid rgba(100,116,139,0.08); cursor: pointer;
    display: flex; flex-direction: column; gap: 1px; position: relative; padding-right: 72px;
}
.chat-history-item:hover { background: rgba(59,130,246,0.08); }
.chat-history-item.active { background: rgba(59,130,246,0.15); border-left: 3px solid var(--accent); }
.chat-history-item.chat-history-item-session-prompt {
  background: rgba(139, 92, 246, 0.14);
  border-left: 3px solid rgba(167, 139, 250, 0.75);
}
.chat-history-item.chat-history-item-session-prompt:hover { background: rgba(139, 92, 246, 0.22); }
.chat-history-item.chat-history-item-session-prompt.active {
  background: rgba(59, 130, 246, 0.22);
  border-left-color: var(--accent);
}
.chat-history-item-title { font-size: 12px; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-history-item-time { font-size: 10px; color: var(--text-muted); }
.chat-history-item-delete {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    width: 20px; height: 20px; padding: 0; border: none; border-radius: 4px;
    background: transparent; color: var(--text-muted); font-size: 16px; line-height: 1; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.chat-history-item-delete:hover { background: var(--danger); color: #fff; }
.chat-history-item-rename {
    position: absolute; right: 50px; top: 50%; transform: translateY(-50%);
    width: 20px; height: 20px; padding: 0; border: none; border-radius: 4px;
    background: transparent; color: var(--text-muted); font-size: 11px; line-height: 1; cursor: pointer;
}
.chat-history-item-rename:hover { background: var(--bg-input); color: var(--accent); }
.chat-history-item-ai-title {
    position: absolute; right: 28px; top: 50%; transform: translateY(-50%);
    width: 22px; height: 20px; padding: 0; border: none; border-radius: 4px;
    background: transparent; color: var(--text-muted); font-size: 11px; line-height: 1; cursor: pointer;
}
.chat-history-item-ai-title:hover { background: var(--bg-input); color: var(--accent); }
.chat-history-item-ai-title:disabled { opacity: 0.6; cursor: not-allowed; }
.chat-history-item-title-edit {
    font-size: 12px; color: var(--text-primary); border: 1px solid var(--accent); border-radius: 4px;
    background: var(--bg-input); padding: 2px 6px; outline: none; max-width: 100%;
}
.chat-container { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chat-message {
    display: flex;
    gap: 8px;
    max-width: 80%;
    /* 列向 flex 子项默认 min-width:auto，会被超长行/栈迹撑破侧栏；允许收缩并在气泡内横向滚动 */
    min-width: 0;
    box-sizing: border-box;
}

.chat-message.user { align-self: flex-end; flex-direction: row-reverse; }

.chat-message .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.chat-message.user .avatar { background: var(--success); }

.chat-message .message-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 8px 10px;
    font-size: 13px;
    line-height: 1.44;
    max-height: none;
    min-width: 0;
    /* 栈迹、长行、大量 ^ 指针行等：限制在气泡宽度内并出现横向滚动条 */
    overflow-x: auto;
    overflow-y: visible;
}
.chat-message .message-content .message-body {
    min-width: 0;
    max-width: 100%;
}
/* 流式回复正文（与 .message-body 并列存在） */
.chat-message .message-content .ai-reply-text {
    min-width: 0;
    max-width: 100%;
}
.ai-reply-text [data-edgeops-stream-table] {
    margin-top: 0.35em;
    min-width: 0;
    max-width: 100%;
}
/* 流式生成中：纯文本追加，避免逐字 Markdown 重绘闪动；结束后一次性排版 */
.ai-reply-text.ai-reply-stream-plain,
.ai-reply-text.ai-reply-stream-incremental .edgeops-stream-tail-plain {
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
    font-family: inherit;
    line-height: 1.55;
}
.ai-reply-text.ai-reply-stream-incremental .edgeops-stream-segment + .edgeops-stream-segment,
.ai-reply-text.ai-reply-stream-incremental .edgeops-stream-tail {
    margin-top: 0.35em;
}
.ai-reply-text.ai-reply-stream-incremental [data-edgeops-stream-table] {
    margin-top: 0.35em;
    min-width: 0;
    max-width: 100%;
}
.chat-message .message-content .message-time {
    margin-top: 6px;
    font-size: 11px;
    line-height: 1.2;
    color: var(--text-muted);
    opacity: 0.9;
    text-align: right;
}

.chat-message.user .message-content {
    background: rgba(59,130,246,0.15);
    border-color: rgba(59,130,246,0.3);
}

.chat-message .message-content pre {
    background: var(--bg-input);
    padding: 8px 10px;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 4px 0;
    font-size: 12px;
    border: 1px solid var(--border);
    max-width: 100%;
    box-sizing: border-box;
}
.chat-code-block-wrap {
    margin: 6px 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.72);
    overflow: hidden;
}
.chat-code-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 9px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(15, 23, 42, 0.9);
    color: var(--text-muted);
    font-size: 11px;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.chat-message .message-content .chat-code-block {
    margin: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}
.chat-message .message-content pre code {
    background: none;
    padding: 0;
    font-size: 12px;
    /* pre 内保持列对齐，由外层 pre 的 overflow-x 承担横向滚动（避免整页被 ^^^ 行撑宽） */
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
    display: block;
}
.tok-keyword { color: #93c5fd; font-weight: 600; }
.tok-string { color: #86efac; }
.tok-number { color: #fbbf24; }
.tok-literal { color: #c4b5fd; font-weight: 600; }
.tok-comment { color: #94a3b8; font-style: italic; }
.tok-diff-add { color: #86efac; }
.tok-diff-del { color: #fca5a5; }
.tok-diff-meta { color: #93c5fd; }
.tok-log-error { color: #fca5a5; font-weight: 600; }
.tok-log-warn { color: #fde68a; }
.tok-log-success { color: #86efac; }
.chat-message .message-content code {
    background: var(--bg-input);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}
.chat-math-block-wrap {
    margin: 6px 0;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid rgba(96, 165, 250, 0.22);
    background: rgba(15, 23, 42, 0.42);
    overflow-x: auto;
}
.chat-math-block {
    display: inline-block;
    min-width: max-content;
    color: #dbeafe;
    font-family: 'Cambria Math', 'Times New Roman', serif;
    font-size: 1.12em;
    line-height: 1.5;
    white-space: pre;
}
.chat-math-inline {
    display: inline-block;
    padding: 0 4px;
    border-radius: 4px;
    color: #dbeafe;
    background: rgba(96, 165, 250, 0.08);
    font-family: 'Cambria Math', 'Times New Roman', serif;
    white-space: nowrap;
}
.math-sqrt::before {
    content: "√";
    font-size: 1.12em;
    margin-right: 1px;
}
.math-radicand {
    display: inline-block;
    border-top: 1px solid currentColor;
    padding: 0 2px;
    line-height: 1.15;
}
.math-frac {
    display: inline-grid;
    grid-template-rows: auto auto;
    vertical-align: middle;
    text-align: center;
    margin: 0 2px;
    line-height: 1.05;
}
.math-frac .math-num {
    border-bottom: 1px solid currentColor;
    padding: 0 3px 1px;
}
.math-frac .math-den {
    padding: 1px 3px 0;
}
.math-text {
    font-family: var(--font-sans, system-ui, sans-serif);
    font-size: 0.92em;
    padding: 0 2px;
}
.math-bold {
    font-weight: 700;
    color: #eff6ff;
}
.chat-message .message-content strong,
.chat-message .message-content b {
    color: #f8fafc;
    font-weight: 700;
}
.chat-message .message-content em,
.chat-message .message-content i {
    color: #dbeafe;
    font-style: italic;
}
.chat-message .message-content u {
    text-decoration-line: underline;
    text-decoration-color: rgba(96, 165, 250, 0.9);
    text-underline-offset: 2px;
}
.chat-message .message-content mark {
    background: rgba(250, 204, 21, 0.18);
    color: #fef3c7;
    padding: 0 4px;
    border-radius: 4px;
}
.chat-message .message-content kbd {
    display: inline-block;
    min-width: 1.4em;
    padding: 1px 6px;
    border-radius: 6px;
    border: 1px solid rgba(148, 163, 184, 0.32);
    background: rgba(15, 23, 42, 0.92);
    color: #e2e8f0;
    font-size: 0.85em;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    box-shadow: inset 0 -1px 0 rgba(255,255,255,0.06);
}
.chat-message .message-content span[style] {
    display: inline;
}
.chat-message .message-content h1, .chat-message .message-content h2, .chat-message .message-content h3 {
    color: var(--text-primary);
    margin: 7px 0 4px;
    font-weight: 600;
}
.chat-message .message-content h1 { font-size: 1.25em; }
.chat-message .message-content h2 { font-size: 1.15em; }
.chat-message .message-content h3 { font-size: 1.05em; }
.chat-message .message-content ul, .chat-message .message-content ol {
    margin: 3px 0 5px;
    padding-left: 1.35em;
}
.chat-message .message-content li {
    margin: 1px 0;
    line-height: 1.42;
}
.chat-message .message-content li + li {
    margin-top: 2px;
}
.chat-message .message-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 6px 0;
}
.chat-message .message-content p { margin: 3px 0; }
.chat-message .message-content p + ul,
.chat-message .message-content p + ol,
.chat-message .message-content ul + p,
.chat-message .message-content ol + p {
    margin-top: 5px;
}
.chat-message .message-content a { color: var(--accent); text-decoration: none; }
.chat-message .message-content a:hover { text-decoration: underline; }
.chat-callout {
    margin: 7px 0;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid rgba(96, 165, 250, 0.24);
    background: rgba(59, 130, 246, 0.08);
}
.chat-callout-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3px;
}
.chat-callout-body {
    color: var(--text-secondary);
}
.chat-callout-tip { border-color: rgba(34, 197, 94, 0.28); background: rgba(34, 197, 94, 0.08); }
.chat-callout-important { border-color: rgba(168, 85, 247, 0.30); background: rgba(168, 85, 247, 0.08); }
.chat-callout-warning { border-color: rgba(245, 158, 11, 0.34); background: rgba(245, 158, 11, 0.09); }
.chat-callout-error { border-color: rgba(239, 68, 68, 0.34); background: rgba(239, 68, 68, 0.09); }
.chat-diagram-block {
    margin: 8px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(15, 23, 42, 0.55);
    overflow: hidden;
}
.chat-diagram-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.75);
}
.chat-diagram-kind {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    margin-right: auto;
}
.chat-diagram-btn {
    white-space: nowrap;
}
.chat-diagram-canvas {
    padding: 12px;
    overflow: auto;
    min-height: 240px;
    background: radial-gradient(circle at top, rgba(30, 41, 59, 0.35), rgba(15, 23, 42, 0.12));
}
.chat-diagram-canvas svg,
.chat-diagram-canvas canvas,
.chat-diagram-echarts {
    display: block;
    max-width: none;
}
.chat-diagram-canvas .mermaid text,
.chat-diagram-canvas .mermaid span,
.chat-diagram-canvas .markmap text,
.chat-diagram-canvas .markmap-foreign {
    fill: var(--text-primary);
    color: var(--text-primary);
}
/* Mermaid 节点底色与字色：强制深色节点背景与浅色文字，避免默认 palette 过亮导致对比度不足 */
.chat-diagram-canvas .mermaid .node rect,
.chat-diagram-canvas .mermaid .node circle,
.chat-diagram-canvas .mermaid .node polygon,
.chat-diagram-canvas .mermaid .node path,
.chat-diagram-canvas .mermaid g[class*="node"] rect,
.chat-diagram-canvas .mermaid g[class*="node"] circle,
.chat-diagram-canvas .mermaid g[class*="node"] polygon,
.chat-diagram-canvas .mermaid g[class*="node"] path {
    fill: #1e293b !important;
    stroke: #475569 !important;
}
.chat-diagram-canvas .mermaid .node label span,
.chat-diagram-canvas .mermaid .node text,
.chat-diagram-canvas .mermaid .node tspan,
.chat-diagram-canvas .mermaid g[class*="node"] text,
.chat-diagram-canvas .mermaid g[class*="node"] tspan {
    fill: #e2e8f0 !important;
    color: #e2e8f0 !important;
}
.chat-diagram-canvas .mermaid .cluster rect,
.chat-diagram-canvas .mermaid .cluster polygon,
.chat-diagram-canvas .mermaid g[class*="cluster"] rect,
.chat-diagram-canvas .mermaid g[class*="cluster"] polygon {
    fill: rgba(15, 23, 42, 0.92) !important;
    stroke: #475569 !important;
}
.chat-diagram-canvas .mermaid .cluster text,
.chat-diagram-canvas .mermaid .cluster tspan,
.chat-diagram-canvas .mermaid g[class*="cluster"] text,
.chat-diagram-canvas .mermaid g[class*="cluster"] tspan {
    fill: #e2e8f0 !important;
}
/* 图形预览弹层内 Mermaid 使用相同配色 */
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .node rect,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .node circle,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .node polygon,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .node path,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="node"] rect,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="node"] circle,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="node"] polygon,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="node"] path {
    fill: #1e293b !important;
    stroke: #475569 !important;
}
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .node text,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .node tspan,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="node"] text,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="node"] tspan {
    fill: #e2e8f0 !important;
    color: #e2e8f0 !important;
}
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .cluster rect,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .cluster polygon,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="cluster"] rect,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="cluster"] polygon {
    fill: rgba(15, 23, 42, 0.92) !important;
    stroke: #475569 !important;
}
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .cluster text,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid .cluster tspan,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="cluster"] text,
.edgeops-diagram-preview-block .chat-diagram-canvas .mermaid g[class*="cluster"] tspan {
    fill: #e2e8f0 !important;
}
.chat-diagram-canvas .markmap {
    --markmap-text-color: var(--text-primary);
    --markmap-circle-open-bg: #1e293b;
    --markmap-code-bg: rgba(15, 23, 42, 0.92);
    --markmap-code-color: var(--text-primary);
    --markmap-highlight-bg: rgba(59, 130, 246, 0.2);
}
.chat-diagram-canvas .markmap-link {
    stroke-opacity: 0.82;
}
.chat-diagram-canvas .markmap-node > circle {
    stroke-width: 1.5px;
}
.chat-diagram-canvas svg {
    min-width: 640px;
    height: auto;
}
.chat-diagram-placeholder {
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 12px;
}
.chat-diagram-error {
    padding: 0 10px 10px;
    color: #fca5a5;
    font-size: 12px;
    white-space: pre-wrap;
}
.chat-diagram-source {
    margin: 0 10px 10px;
}
.chat-diagram-source code {
    white-space: pre-wrap;
    word-break: break-word;
}
.edgeops-diagram-preview-overlay {
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 1300;
}
.edgeops-diagram-preview-modal {
    width: min(94vw, 1320px);
    max-width: min(94vw, 1320px);
    max-height: 92vh;
    display: flex;
    flex-direction: column;
}
.edgeops-diagram-preview-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.edgeops-diagram-preview-zoom {
    min-width: 52px;
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
}
.edgeops-diagram-preview-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
}
.edgeops-diagram-preview-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(2, 8, 23, 0.78);
    padding: 16px;
}
.edgeops-diagram-preview-stage {
    transform-origin: top left;
    width: max-content;
    min-width: 100%;
}
.edgeops-diagram-preview-block {
    min-width: max-content;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}
.edgeops-diagram-preview-block .chat-diagram-canvas {
    min-height: 520px;
}
.edgeops-diagram-preview-source {
    margin: 0;
    max-height: 18vh;
    overflow: auto;
}
.chat-md-table-wrap {
    overflow-x: auto;
    margin: 6px 0;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
/* AI 工具调用展示（执行中/完成/失败） */
.ai-reply-tools {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 8px;
    margin-bottom: 8px;
    width: 100%;
}
.ai-cot-wait-host {
    padding: 8px 12px 0;
}
.ai-cot-wait-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 12px;
    padding: 8px 10px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    font-size: 12px;
    color: var(--text);
}
.ai-cot-wait-text {
    flex: 1 1 160px;
}
.ai-cot-wait-cancel {
    flex-shrink: 0;
}
.ai-cot-panel {
    border: 1px solid rgba(59, 130, 246, 0.35);
    border-radius: 10px;
    background: var(--bg-input, rgba(255, 255, 255, 0.04));
    overflow: hidden;
    width: 100%;
    max-width: 100%;
}
.ai-cot-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    margin: 0;
    border: none;
    background: rgba(59, 130, 246, 0.08);
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}
.ai-cot-header:hover {
    background: rgba(59, 130, 246, 0.12);
}
.ai-cot-chevron {
    flex: 0 0 auto;
    opacity: 0.85;
}
.ai-cot-head-main {
    flex: 1 1 auto;
    min-width: 0;
}
.ai-cot-head-status {
    flex: 0 0 auto;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}
.ai-cot-status-live { color: var(--accent, #3b82f6); }
.ai-cot-status-done { color: var(--text-muted, #64748b); }
.ai-cot-body {
    padding: 8px 10px 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ai-cot-body.ai-cot-collapsed {
    display: none;
}
.ai-cot-steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ai-cot-step {
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 13px;
    line-height: 1.45;
}
.ai-cot-step-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 6px;
    font-weight: 600;
}
.ai-cot-step-reasoning {
    border-left: 3px solid rgba(59, 130, 246, 0.65);
    background: rgba(59, 130, 246, 0.06);
}
.ai-cot-reasoning-text {
    white-space: pre-wrap;
    word-break: break-word;
    font-weight: 400;
    color: var(--text);
}
.ai-cot-step-tool {
    border-left: 3px solid rgba(34, 197, 94, 0.55);
    background: rgba(34, 197, 94, 0.07);
}
.ai-cot-step-tool.ai-tool-executing {
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.25);
}
.ai-cot-step-tool.ai-tool-failed {
    border-left-color: rgba(239, 68, 68, 0.65);
    background: rgba(239, 68, 68, 0.06);
}
.ai-cot-step-title {
    flex: 1 1 auto;
    font-family: 'Consolas', 'Monaco', ui-monospace, monospace;
    font-size: 12px;
    word-break: break-all;
}
.ai-cot-tool-badge {
    flex: 0 0 auto;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 6px;
    white-space: nowrap;
}
.ai-cot-badge-running {
    color: var(--accent, #2563eb);
    background: rgba(59, 130, 246, 0.15);
}
.ai-cot-badge-done {
    color: var(--success, #16a34a);
    background: rgba(34, 197, 94, 0.15);
}
.ai-cot-badge-fail {
    color: var(--danger, #dc2626);
    background: rgba(239, 68, 68, 0.12);
}
.ai-cot-args {
    margin: 0;
    padding: 8px 10px;
    font-size: 11px;
    line-height: 1.35;
    border-radius: 0 0 6px 6px;
    background: var(--bg-card, rgba(0, 0, 0, 0.06));
    border: none;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 48vh;
}
.ai-cot-details {
    margin-top: 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    overflow: hidden;
    background: var(--bg-input, rgba(255, 255, 255, 0.02));
}
.ai-cot-details-summary {
    cursor: pointer;
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 600;
    list-style: none;
    user-select: none;
    color: var(--text-secondary);
}
.ai-cot-details-summary::-webkit-details-marker {
    display: none;
}
.ai-cot-details .ai-cot-details-summary::before {
    content: '\25b6  ';
    font-size: 10px;
    opacity: 0.7;
}
.ai-cot-details[open] .ai-cot-details-summary::before {
    content: '\25bc  ';
}
.ai-cot-details-body {
    border-top: 1px solid var(--border);
    padding: 0;
    max-height: 55vh;
    overflow: auto;
}
.ai-cot-details-body .ai-tool-stream {
    max-height: none;
    border-top: none;
    margin: 0;
    padding: 8px 10px;
}
.ai-cot-result-preview {
    margin: 0;
    padding: 8px 10px;
    font-size: 11px;
    border: none;
    max-height: 48vh;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-secondary);
}
.ai-cot-live {
    font-size: 11px;
    color: var(--text-secondary);
    padding: 6px 8px;
    border-radius: 6px;
    background: var(--bg-input);
    border: 1px solid var(--border);
}
.ai-cot-live:empty {
    display: none;
}
.ai-cot-panel.ai-cot-collapsed .ai-cot-chevron {
    transform: none;
}
.ai-tool-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
}
.ai-tool-item.ai-tool-executing {
    border-color: rgba(59, 130, 246, 0.4);
    background: rgba(59, 130, 246, 0.1);
}
.ai-tool-item.ai-tool-executing .ai-tool-badge { color: var(--accent); }
.ai-tool-item.ai-tool-completed {
    border-color: rgba(34, 197, 94, 0.4);
    background: rgba(34, 197, 94, 0.08);
}
.ai-tool-item.ai-tool-completed .ai-tool-badge { color: var(--success, #22c55e); }
.ai-tool-item.ai-tool-failed {
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.08);
}
.ai-tool-item.ai-tool-failed .ai-tool-badge { color: var(--danger, #ef4444); }
.ai-tool-badge {
    font-weight: 600;
}
.ai-tool-name {
    color: var(--text-secondary);
    font-family: 'Consolas', 'Monaco', monospace;
}

/* ── AI 选择题卡片（ask_user_choice） ── */
.ai-choice-card {
    margin-top: 10px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-input, rgba(255,255,255,0.03));
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.ai-choice-card-header {
    display: none;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 0;
    min-height: 28px;
}
.ai-choice-toggle {
    flex: 0 0 auto;
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-card, rgba(255,255,255,0.06));
    color: var(--text-muted, #94a3b8);
    font-size: 12px;
    cursor: pointer;
    line-height: 1.35;
}
.ai-choice-toggle:hover {
    border-color: var(--accent, #3b82f6);
    color: var(--text, inherit);
}
.ai-choice-header-summary {
    flex: 1 1 0;
    min-width: 0;
    font-size: 12px;
    line-height: 1.45;
    color: var(--text-secondary, #cbd5e1);
    word-break: break-word;
}
.ai-choice-card.has-answered-header.collapsed .ai-choice-collapsible-body {
    display: none;
}
.ai-choice-card.has-answered-header:not(.collapsed) .ai-choice-card-header {
    margin-bottom: 10px;
}
.ai-choice-card.locked { opacity: 0.75; }
/* 历史已作答卡片：弱化呈现，仍保留题目与选项便于回看，左侧色条暗示"已归档" */
.ai-choice-card.persisted.answered {
    opacity: 0.85;
    border-style: dashed;
    border-left: 3px solid var(--success, #22c55e);
    background: var(--bg-input, rgba(255,255,255,0.02));
}
.ai-choice-card.persisted.answered .ai-choice-done {
    color: var(--success, #22c55e);
    font-weight: 600;
}
/* 未作答的历史卡（可重新点击触发回答） */
.ai-choice-card.persisted:not(.answered) {
    border-left: 3px solid var(--primary, #3b82f6);
}
.ai-choice-question {
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
    color: var(--text, inherit);
    white-space: pre-wrap;
    word-break: break-word;
}
.ai-choice-countdown {
    margin: -2px 0 10px;
    padding: 5px 8px;
    border-radius: 6px;
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
    font-size: 12px;
    line-height: 1.4;
}
/* 选项容器：单选用 grid 做"容器够宽就多列，不够就自动减列"的自适应布局，
   避免了之前 flex + inline-flex button + flex:1 label 互相收缩导致选项被压到
   一字宽、中文逐字换行的问题。多选仍然单列纵排。 */
.ai-choice-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 8px;
    align-items: stretch;
}
.ai-choice-options.multi {
    grid-template-columns: 1fr;
    gap: 6px;
}
/* row 只是逻辑包装；在 grid 容器里让它占一格并让内部 button/label 撑满 */
.ai-choice-row {
    display: block;
    min-width: 0;
}
.ai-choice-option {
    width: 100%;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-card, rgba(255,255,255,0.04));
    color: var(--text, inherit);
    cursor: pointer;
    font-size: 13px;
    line-height: 1.5;
    text-align: left;
    flex-wrap: wrap; /* 允许 description 另起一行 */
    transition: transform .08s ease, border-color .12s ease, background .12s ease;
}
.ai-choice-option:hover:not(:disabled) { transform: translateY(-1px); border-color: var(--accent, #3b82f6); }
.ai-choice-option:disabled { cursor: not-allowed; }
.ai-choice-option .ai-choice-id,
.ai-choice-multi .ai-choice-id {
    flex: 0 0 auto;
    display: inline-flex;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: rgba(255,255,255,0.08);
    font-weight: 700;
    font-size: 12px;
    color: var(--text-secondary, #9ca3af);
    margin-top: 1px; /* 视觉上与首行文字基线对齐 */
}
.ai-choice-option .ai-choice-label,
.ai-choice-multi .ai-choice-label {
    flex: 1 1 0;
    min-width: 0;          /* 关键：允许 flex child 收缩到内容以下，避免溢出/强制整体宽度 */
    white-space: normal;
    word-break: normal;
    overflow-wrap: anywhere; /* 长英文/URL 等可断行，中文按自然换行 */
    line-height: 1.5;
}
.ai-choice-option .ai-choice-desc,
.ai-choice-multi .ai-choice-desc {
    flex-basis: 100%;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-secondary, #9ca3af);
    font-weight: normal;
    line-height: 1.45;
    white-space: normal;
    overflow-wrap: anywhere;
}
.ai-choice-option.style-primary { border-color: rgba(59, 130, 246, 0.45); background: rgba(59, 130, 246, 0.08); }
.ai-choice-option.style-primary .ai-choice-id { color: #60a5fa; background: rgba(59, 130, 246, 0.18); }
.ai-choice-option.style-success { border-color: rgba(34, 197, 94, 0.45); background: rgba(34, 197, 94, 0.08); }
.ai-choice-option.style-success .ai-choice-id { color: #4ade80; background: rgba(34, 197, 94, 0.18); }
.ai-choice-option.style-danger  { border-color: rgba(239, 68, 68, 0.45); background: rgba(239, 68, 68, 0.08); }
.ai-choice-option.style-danger  .ai-choice-id { color: #f87171; background: rgba(239, 68, 68, 0.18); }
.ai-choice-option.default-hint  { outline: 2px dashed rgba(96, 165, 250, 0.5); outline-offset: 2px; }

.ai-choice-multi {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-card, rgba(255,255,255,0.03));
    cursor: pointer;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text, inherit);
    width: 100%;
    min-width: 0;
}
.ai-choice-multi input[type=checkbox] {
    flex: 0 0 auto;
    margin-top: 3px;
    accent-color: var(--accent, #3b82f6);
}
.ai-choice-multi.style-danger  { border-color: rgba(239, 68, 68, 0.35); }
.ai-choice-multi.style-success { border-color: rgba(34, 197, 94, 0.35); }
.ai-choice-multi.style-primary { border-color: rgba(59, 130, 246, 0.35); }

.ai-choice-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    align-items: center;
}
.ai-choice-text {
    flex: 1;
    min-width: 0;
    padding: 7px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-input, rgba(255,255,255,0.04));
    color: var(--text, inherit);
    font-size: 13px;
}
.ai-choice-text:focus { outline: none; border-color: var(--accent, #3b82f6); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15); }
.ai-choice-submit {
    padding: 7px 16px;
    border-radius: 8px;
    border: 1px solid var(--accent, #3b82f6);
    background: var(--accent, #3b82f6);
    color: #fff;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
}
.ai-choice-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.ai-choice-submit:hover:not(:disabled) { filter: brightness(1.08); }
.ai-choice-done {
    margin-top: 10px;
    padding: 6px 10px;
    font-size: 12px;
    color: var(--text-secondary, #9ca3af);
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
}
.chat-md-table {
    border-collapse: collapse;
    width: 100%;
    font-size: 13px;
    margin: 5px 0;
}
.chat-md-table th, .chat-md-table td {
    border: 1px solid var(--border);
    padding: 4px 9px;
    text-align: left;
}
.chat-md-table th {
    background: var(--bg-input);
    color: var(--text-primary);
    font-weight: 600;
}
.chat-md-table td { background: var(--bg-card); color: var(--text-secondary); }
.chat-md-table tr:nth-child(even) td { background: rgba(15,23,42,0.25); }

.chat-input-area {
    padding: 10px 14px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    align-items: flex-end;
    background: var(--bg-secondary);
}

.chat-input-area .form-control { flex: 1; min-width: 0; }
.chat-input-area .chat-input-multiline {
    /* 默认单行高度：font-size 14 × line-height 1.5 ≈ 21px，加 8×2 padding ≈ 37px。
       textarea rows=1 时浏览器可能给出更小的 client 高度，这里兜底 36px 防止比按钮矮。 */
    min-height: 36px;
    max-height: 200px;
    resize: none;
    overflow-y: hidden;
    line-height: 1.5;
}
.chat-low-interaction-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.25);
    white-space: nowrap;
    user-select: none;
}
.chat-low-interaction-toggle input {
    margin: 0;
}

/* ── 聊天附件：上传按钮、文件输入、缩略片 ── */
.chat-attachments-bar {
    padding: 6px 14px 0 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    /* 一次贴 20+ 张图 / 文件时，附件条不能无限撑高把输入框挤出屏幕；限制到 ~3 行高度，
       超出自动滚动。scrollbar-gutter 让滚动条出现时布局不抖。 */
    max-height: 108px;
    overflow-y: auto;
    scrollbar-gutter: stable;
}
.chat-attachments-bar:empty { display: none; }
.chat-attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 6px 4px 8px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--bg-card);
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 260px;
}
.chat-attachment-chip.chip-error {
    border-color: var(--danger, #dc2626);
    background: rgba(220, 38, 38, 0.08);
}
.chat-attachment-chip .chip-thumb {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    object-fit: cover;
    background: rgba(15,23,42,0.35);
    display: inline-block;
}
.chat-attachment-chip .chip-icon {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background: rgba(15,23,42,0.35);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--text-primary);
}
.chat-attachment-chip .chip-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chat-attachment-chip .chip-size { color: var(--text-muted); font-size: 11px; margin-left: 4px; }
.chat-attachment-chip .chip-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 0 4px;
    line-height: 1;
}
.chat-attachment-chip .chip-remove:hover { color: var(--danger); }
.chat-attachment-chip.chip-uploading { opacity: 0.7; }

.chat-attach-upload-btn {
    flex: 0 0 auto;
    padding: 6px 10px;
    font-size: 13px;
}

/* AI 成果物（artifacts）下载卡片：由 [标题](artifact:UUID) 经 edgeopsEnhanceArtifactLinks 替换得到 */
/* AI 成果物下载卡片：贴齐 EdgeOps 深色主题（--bg-card / --border / --accent ...） */
.artifact-download-card {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 8px 0;
    padding: 10px 12px;
    border: 1px solid var(--border, rgba(100, 116, 139, 0.3));
    border-radius: 10px;
    background: var(--bg-card, rgba(30, 41, 59, 0.7));
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
    max-width: 520px;
    transition: box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.artifact-download-card:hover {
    border-color: var(--border-hover, rgba(59, 130, 246, 0.5));
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.18);
}
.artifact-download-card .artifact-icon {
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    border-radius: 8px;
    background: rgba(59, 130, 246, 0.18);
    color: var(--accent, #3b82f6);
}
.artifact-download-card .artifact-main {
    flex: 1 1 auto;
    min-width: 0;
}
.artifact-download-card .artifact-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary, #e2e8f0);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.artifact-download-card .artifact-meta {
    font-size: 12px;
    color: var(--text-secondary, #94a3b8);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
/* 注意：聊天区域有个 `.chat-message .message-content a { color: var(--accent); }`
   的全局链接样式，特异性 (0,0,3,1) 比 `.artifact-download-card .artifact-dl-btn`
   要高，不做额外提权的话下载按钮字会被强制改成蓝色、和按钮背景同色导致"看不到字"。
   下面用 `a.artifact-dl-btn` / `button.artifact-preview-btn` 多叠一个类型选择器提权。 */
.artifact-download-card a.artifact-dl-btn,
.artifact-download-card button.artifact-preview-btn {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 6px;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.artifact-download-card a.artifact-dl-btn,
.artifact-download-card a.artifact-dl-btn:link,
.artifact-download-card a.artifact-dl-btn:visited {
    background: var(--accent, #3b82f6);
    color: #fff;
    border-color: var(--accent, #3b82f6);
    text-decoration: none;
}
.artifact-download-card a.artifact-dl-btn:hover,
.artifact-download-card a.artifact-dl-btn:focus {
    background: var(--accent-hover, #2563eb);
    border-color: var(--accent-hover, #2563eb);
    color: #fff;
    text-decoration: none;
}
.artifact-download-card button.artifact-preview-btn {
    background: rgba(59, 130, 246, 0.08);
    color: #bfdbfe;
    border-color: rgba(59, 130, 246, 0.55);
}
.artifact-download-card button.artifact-preview-btn:hover,
.artifact-download-card button.artifact-preview-btn:focus {
    background: rgba(59, 130, 246, 0.2);
    color: #fff;
    border-color: var(--accent, #3b82f6);
    text-decoration: none;
}

/* AI 成果物站内预览模态：由 edgeopsOpenArtifactPreview 创建；
   根据文件类型渲染 iframe / markdown / 表格 / 图片 / PDF。 */
.edgeops-artifact-preview-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.55);
    z-index: 2000;
}
.edgeops-artifact-preview-modal {
    width: min(1100px, 94vw);
    height: min(780px, 88vh);
    max-width: 94vw;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary, #111827);
    color: var(--text-primary, #e2e8f0);
    border: 1px solid var(--border, rgba(100, 116, 139, 0.3));
    border-radius: 10px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}
.edgeops-artifact-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border, rgba(100, 116, 139, 0.3));
    background: var(--bg-primary, #0b1020);
}
.edgeops-artifact-preview-title {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.edgeops-artifact-preview-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
}
.edgeops-artifact-preview-actions .btn {
    white-space: nowrap;
}
.edgeops-artifact-preview-body {
    flex: 1 1 auto;
    overflow: auto;
    padding: 0;
    background: var(--bg-primary, #0b1020);
}
.edgeops-artifact-preview-body > .edgeops-artifact-preview-loading,
.edgeops-artifact-preview-body > .edgeops-artifact-preview-error,
.edgeops-artifact-preview-body > .edgeops-artifact-preview-empty {
    padding: 24px;
    color: var(--text-secondary, #94a3b8);
    font-size: 13px;
    text-align: center;
}
.edgeops-artifact-preview-body > .edgeops-artifact-preview-error {
    color: var(--danger, #ef4444);
}
.edgeops-artifact-preview-frame {
    width: 100%;
    height: 100%;
    border: 0;
    background: #fff;
    display: block;
}
.edgeops-artifact-preview-img-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    padding: 16px;
    background: #0b1220;
}
.edgeops-artifact-preview-img {
    max-width: 100%;
    max-height: calc(88vh - 80px);
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}
.edgeops-artifact-preview-markdown {
    padding: 18px 22px;
    line-height: 1.6;
    font-size: 14px;
    color: var(--text-primary, #e2e8f0);
}
.edgeops-artifact-preview-markdown h1,
.edgeops-artifact-preview-markdown h2,
.edgeops-artifact-preview-markdown h3 {
    margin-top: 1.1em;
    margin-bottom: 0.4em;
}
.edgeops-artifact-preview-markdown pre {
    background: rgba(148, 163, 184, 0.12);
    padding: 10px 12px;
    border-radius: 6px;
    overflow: auto;
}
.edgeops-artifact-preview-markdown code {
    background: rgba(148, 163, 184, 0.14);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 90%;
}
.edgeops-artifact-preview-markdown table {
    border-collapse: collapse;
    margin: 8px 0;
}
.edgeops-artifact-preview-markdown table th,
.edgeops-artifact-preview-markdown table td {
    border: 1px solid var(--border, rgba(100, 116, 139, 0.3));
    padding: 4px 10px;
}
.edgeops-artifact-preview-text {
    margin: 0;
    padding: 16px 20px;
    white-space: pre;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 12.5px;
    line-height: 1.55;
    color: var(--text-primary, #e2e8f0);
    background: transparent;
    overflow: auto;
    min-height: 100%;
}
.edgeops-artifact-preview-table-wrap {
    padding: 12px 16px;
    overflow: auto;
}
.edgeops-artifact-preview-table {
    border-collapse: collapse;
    min-width: 100%;
    font-size: 12.5px;
    color: var(--text-primary, #e2e8f0);
}
.edgeops-artifact-preview-table th,
.edgeops-artifact-preview-table td {
    border: 1px solid var(--border, rgba(100, 116, 139, 0.3));
    padding: 4px 10px;
    text-align: left;
    max-width: 360px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.edgeops-artifact-preview-table thead th {
    position: sticky;
    top: 0;
    background: var(--bg-secondary, #111827);
    font-weight: 600;
    z-index: 1;
}
.edgeops-artifact-preview-truncated {
    margin-top: 8px;
    color: var(--text-secondary, #94a3b8);
    font-size: 12px;
}

/* 历史消息里附件清单中的图片缩略图 */
.chat-attachment-image-inline {
    display: inline-block;
    max-width: 240px;
    max-height: 160px;
    border-radius: 6px;
    margin: 4px 4px 4px 0;
    vertical-align: middle;
    border: 1px solid var(--border);
}

/* ── AI Action 消息 ── */
.chat-action {
    padding: 6px 16px;
    font-size: 12px;
    color: var(--text-secondary);
    border-left: 3px solid var(--border);
    margin: 2px 0 2px 44px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 0 var(--radius) var(--radius) 0;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.6;
}

.chat-action .action-icon { font-size: 14px; flex-shrink: 0; }
.chat-action .action-running { color: var(--accent); }
.chat-action .action-success { color: var(--success); }
.chat-action .action-failed { color: var(--danger); }
.chat-action .action-args { color: var(--text-muted); font-family: monospace; font-size: 11px; }
.chat-action .action-status { margin-left: auto; font-size: 11px; }

/* ── 空状态 ── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }

/* ── 搜索栏 ── */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: center;
}

.search-bar .form-control { max-width: 300px; }

/* ── 标签页 ── */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
    gap: 0;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    font-size: 14px;
}

.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── 详情页 ── */
.detail-row-with-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}
.detail-row-with-actions .detail-grid { flex: 1; min-width: 0; }
.detail-row-with-actions .detail-actions { flex-shrink: 0; }

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 10px;
}

/* 主机详情等单行紧凑布局：4 列一行、间距更小 */
.detail-grid-inline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px 12px;
}
.detail-grid-inline .detail-item {
    padding: 2px 0;
    border-bottom: none;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 0;
    border-bottom: 1px solid rgba(100,116,139,0.1);
    font-size: 13px;
}

.detail-item .label { color: var(--text-muted); flex-shrink: 0; }
.detail-item .value { color: var(--text-primary); font-weight: 500; min-width: 0; }
.detail-item-with-copy { align-items: flex-start; gap: 8px; }
.detail-item-with-copy .value { flex: 1; min-width: 0; }
.btn-copy-inline { flex-shrink: 0; padding: 2px 8px; font-size: 11px; border-radius: 4px; border: 1px solid var(--border); background: var(--bg-input); color: var(--text-secondary); cursor: pointer; }
.btn-copy-inline:hover { color: var(--accent); border-color: var(--accent); }

/* ── 工具提示 ── */
.tooltip { position: relative; }
.tooltip::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}
.tooltip:hover::after { opacity: 1; }

/* ── 响应式 ── */
@media (max-width: 900px) {
    .auth-page {
        grid-template-columns: 1fr;
        grid-template-rows: auto minmax(200px, 40vh);
    }
    .auth-page .auth-visual { min-height: 200px; }
    .auth-page .auth-announcement {
        top: 12px;
        right: 12px;
        width: calc(100% - 24px);
        max-height: 22vh;
        padding: 10px 12px;
    }
    .auth-page .auth-intro-cta {
        min-width: 0;
        padding: 14px 28px;
    }
    .auth-page .auth-intro-cta-title { font-size: 22px; letter-spacing: 4px; }
    .auth-page .auth-intro-cta-sub { font-size: 12px; }
    .auth-page .auth-intro-cta-tag { font-size: 11px; letter-spacing: 1px; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .sidebar.sidebar-collapsed + .main-content { margin-left: 0; }
    .modal-overlay {
        align-items: flex-end;
        justify-content: stretch;
        padding-top: 10vh;
    }
    .modal {
        min-width: 0;
        width: 100%;
        max-width: none;
        max-height: 78vh;
        border-radius: 18px 18px 0 0;
        margin: 0;
    }
    .modal-body {
        padding: 18px 16px;
    }
    .modal-footer {
        gap: 10px;
        padding: 14px 16px calc(14px + env(safe-area-inset-bottom, 0px));
        flex-wrap: wrap;
    }
    .modal-footer .btn {
        flex: 1 1 0;
        min-height: 42px;
    }
    .mobile-quick-actions {
        position: fixed;
        right: 12px;
        bottom: 12px;
        z-index: 120;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px;
        background: rgba(10, 18, 38, 0.92);
        border: 1px solid var(--border);
        border-radius: 999px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.28);
        backdrop-filter: blur(8px);
    }
    .mobile-quick-actions .btn {
        width: auto;
        white-space: nowrap;
    }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .device-grid { grid-template-columns: 1fr; }
    .modal { min-width: 90vw; }
    .auth-card { width: 90vw; padding: 24px; }
    .chat-message { max-width: 95%; }
    .chat-diagram-toolbar {
        padding: 8px;
        gap: 4px;
    }
    .chat-diagram-kind {
        width: 100%;
        margin-right: 0;
    }
    .chat-diagram-canvas {
        padding: 8px;
        min-height: 180px;
    }
    .chat-diagram-canvas svg {
        min-width: 420px;
    }
    .chat-diagram-source {
        margin: 0 8px 8px;
    }
    .edgeops-diagram-preview-overlay {
        padding: 0;
        align-items: stretch;
    }
    .edgeops-diagram-preview-modal {
        width: 100%;
        max-width: none;
        max-height: 100vh;
        border-radius: 0;
    }
    .edgeops-diagram-preview-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    .edgeops-diagram-preview-scroll {
        padding: 10px;
    }
    .edgeops-diagram-preview-block .chat-diagram-canvas {
        min-height: 320px;
    }
    .edgeops-diagram-preview-source {
        max-height: 24vh;
    }
}

/* ── 加载动画 ── */
.spinner {
    width: 32px; height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
}

/* ── 文件系统页 ── */
#page-content:has(.fs-layout) {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.fs-layout {
    display: flex;
    flex: 1;
    min-height: 0;
    gap: 16px;
}
.fs-tree-panel {
    width: 180px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    overflow: hidden;
}
.fs-tree-header {
    padding: 10px 12px;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}
.fs-tree-wrap {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}
.fs-tree { padding: 8px 0; }
.fs-tree-list { list-style: none; margin: 0; padding-left: 16px; display: block; }
.fs-tree-item { display: block; padding: 0; margin: 0; cursor: pointer; font-size: 13px; }
.fs-tree-item:hover { background: rgba(59, 130, 246, 0.1); }
.fs-tree-row { display: flex; align-items: center; gap: 4px; padding: 2px 8px; }
.fs-tree-arrow { font-size: 10px; color: var(--text-muted); cursor: pointer; flex-shrink: 0; }
.fs-tree-label { flex: 1; min-width: 0; }
.fs-tree-item.fs-file .fs-tree-label { display: block; padding: 2px 8px; }
.fs-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}
.fs-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
    flex-shrink: 0;
}
.fs-path-input { flex: 1; min-width: 120px; max-width: 400px; }
.fs-list-panel {
    flex: 1;
    min-height: 0;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}
.fs-list-inner { padding: 12px; }
.fs-upload-progress-wrap {
    margin-bottom: 10px;
    flex-shrink: 0;
}
.fs-upload-progress-text {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
    word-break: break-all;
}
.fs-upload-progress-bar {
    height: 6px;
    border-radius: 4px;
    background: rgba(100, 116, 139, 0.25);
    overflow: hidden;
}
.fs-upload-progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    background: var(--accent, #3b82f6);
    transition: width 0.08s linear;
}
.fs-list-panel.fs-drop-hover {
    outline: 2px dashed rgba(59, 130, 246, 0.55);
    outline-offset: -2px;
    background: rgba(59, 130, 246, 0.04);
}
.fs-table { width: 100%; border-collapse: collapse; }
.fs-table th, .fs-table td { padding: 4px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.fs-table .fs-col-size { white-space: nowrap; text-align: right; font-variant-numeric: tabular-nums; }
.fs-table .fs-col-mtime { white-space: nowrap; color: var(--text-muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.fs-table tr { cursor: pointer; }
.fs-table tr:hover { background: rgba(59, 130, 246, 0.06); }
.fs-editor-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}
.fs-editor-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.fs-editor-path { font-family: monospace; font-size: 12px; color: var(--text-muted); }
.fs-editor-tabs .fs-tab { margin-left: 4px; }
.fs-editor-tabs .fs-tab.active { color: var(--accent); }
.fs-editor-area {
    flex: 1;
    min-height: 0;
    padding: 12px;
    overflow: auto;
    display: flex;
    flex-direction: column;
}
.fs-editor-area textarea { display: block; flex: 1; min-height: 0; height: 100%; padding: 8px; resize: none; box-sizing: border-box; }
.fs-preview {
    flex: 1;
    min-height: 0;
    padding: 12px;
    line-height: 1.6;
    overflow: auto;
}
.fs-preview h1, .fs-preview h2, .fs-preview h3 { margin-top: 1em; margin-bottom: 0.5em; }
.fs-preview pre { margin: 0; }
.fs-preview pre code { font-size: 13px; }
/* HTML 预览：iframe 在 flex 里不会随 flex:1 长高，用绝对定位铺满父级 */
.fs-preview.fs-preview-html {
    position: relative;
    flex: 1 1 0;
    min-height: 0;
    padding: 0;
    overflow: hidden;
}
.fs-preview.fs-preview-html .fs-html-preview-iframe {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    border: 0;
    background: #fff;
}
.fs-editor-panel.fs-image-mode .fs-editor-tabs { display: none; }
.fs-editor-panel.fs-image-mode .fs-editor-area { align-items: center; justify-content: center; }
.fs-editor-panel.fs-image-mode .fs-editor-area img { max-width: 100%; max-height: 100%; object-fit: contain; }
.fs-editor-panel.fs-image-mode .fs-editor-actions #fsSave { display: none; }
.fs-editor-actions { flex-shrink: 0; padding: 8px 12px; border-top: 1px solid var(--border); }
/* 全屏时预览/编辑区充满页面 */
.fs-layout.fs-fullscreen .fs-tree-panel { display: none; }
.fs-layout.fs-fullscreen .fs-main { flex: 1; min-width: 0; }

/* ── 隐藏 ── */
.hidden { display: none !important; }

/* ── AI 助手页：整页不随内容拉长，仅聊天窗/终端内部滚动 ── */
#page-content:has(.ai-page-layout) {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    max-height: 100vh;
    padding: 10px 12px;
    overflow: hidden;
}
#page-content:has(.ai-page-layout) .topbar {
    flex-shrink: 0;
}
.ai-page-layout {
    display: flex;
    gap: 0;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    align-items: stretch;
}
/* 左侧边栏（Tab 式）：点击边栏上的 Tab 滑出面板，可扩展多个 Tab 页 */
.ai-left-sidebar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 12;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    pointer-events: none;
}
.ai-left-sidebar > * {
    pointer-events: auto;
}
/* 左侧 Tab 条：始终可见，可放多个 Tab */
.ai-left-sidebar-tabs {
    width: 32px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px 0;
    background: var(--bg-input);
    border-right: 1px solid var(--border);
    border-radius: var(--radius) 0 0 var(--radius);
    box-shadow: 1px 0 4px rgba(0,0,0,0.06);
}
.ai-left-sidebar-tab {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 1px;
    font-size: 12px;
    color: var(--text-muted);
    padding: 10px 6px;
    cursor: pointer;
    user-select: none;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
}
.ai-left-sidebar-tab:hover {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.08);
}
.ai-left-sidebar-tab.active {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.12);
    font-weight: 500;
}
/* 滑出面板：默认完全藏在左侧外，打开时滑入 */
.ai-left-sidebar-panel {
    width: 240px;
    min-width: 240px;
    max-width: 400px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    border-radius: 0 var(--radius) var(--radius) 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.08);
    transform: translateX(calc(-100% - 32px));
    transition: transform 0.25s ease;
}
.ai-left-sidebar.open .ai-left-sidebar-panel {
    transform: translateX(0);
}
.ai-page-layout {
    position: relative;
    padding-left: 32px;
    box-sizing: border-box;
}
/* 主机列表页：活动主机栏不浮层，占位并向右推挤列表；可点击左侧 Tab 收起/展开 */
.hosts-page-layout.ai-page-layout {
    padding-left: 0;
}
.hosts-page-layout .hosts-left-sidebar {
    position: static;
    flex-shrink: 0;
    pointer-events: auto;
}
/* 收起时：面板左移隐藏且不占位，仅留 Tab 条 32px */
.hosts-page-layout .hosts-left-sidebar .ai-left-sidebar-panel {
    transition: transform 0.25s ease;
}
.hosts-page-layout .hosts-left-sidebar.open .ai-left-sidebar-panel {
    transform: none;
}
.hosts-page-layout .hosts-left-sidebar:not(.open) .ai-left-sidebar-panel {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(calc(-100% - 32px));
    z-index: 10;
}
.ai-page-layout .ai-left-sidebar-panel .chat-history-panel,
.ai-page-layout .ai-left-sidebar-panel .ai-layout-history {
    width: 100%;
    min-width: 0;
    max-width: none;
    border: none;
    border-radius: 0;
    flex: 1;
    min-height: 0;
}
.ai-page-layout .ai-layout-history {
    flex: 0 0 auto;
    width: 220px;
    min-width: 140px;
    max-width: 420px;
}
.ai-page-layout.ai-history-collapsed .ai-layout-history,
.ai-page-layout.ai-history-collapsed .layout-splitter-vertical[data-split="history"] {
    display: none !important;
}
.ai-page-layout.ai-terminal-hidden .ai-layout-terminal,
.ai-page-layout.ai-terminal-hidden .layout-splitter-vertical[data-split="terminal"] {
    display: none !important;
}
.ai-page-layout.ai-terminal-hidden .ai-layout-chat {
    flex: 1 1 100%;
    min-width: 0;
}
.ai-page-layout .ai-layout-terminal {
    flex: 1 1 0;
    min-width: 200px;
}
.ai-page-layout .ai-layout-chat {
    flex: 1 1 0;
    min-width: 200px;
}
.layout-splitter-vertical {
    width: 6px;
    flex-shrink: 0;
    cursor: col-resize;
    background: var(--border);
    transition: background 0.15s;
}
.layout-splitter-vertical:hover,
.layout-splitter-vertical.dragging {
    background: var(--accent);
}
.ai-session-list {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}
.ai-session-list .chat-history-list-wrap.open {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.ai-session-list .chat-history-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

/* SSH 终端：与 AI 聊天区 50:50 均分宽度 */
.ai-terminal-card {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    align-self: stretch;
}
/* 终端 card 自身使用更紧凑的内边距，让 xterm 占据更多可视区 */
.card.ai-terminal-card {
    padding: 6px 8px;
    margin-bottom: 0;
}
.ai-terminal-container {
    flex: 1;
    min-height: 0;
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: 4px;
    margin-bottom: 4px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.6);
}
.ai-terminal-mount {
    position: absolute;
    top: 4px;
    left: 4px;
    right: 4px;
    bottom: 4px;
    overflow: hidden;
    width: auto;
    height: auto;
}
.ai-terminal-mount:not([style*="display: none"]) {
    display: block;
}
.ai-terminal-mount .xterm {
    padding: 4px;
    height: 100%;
    width: 100%;
    box-sizing: border-box;
}
.ai-terminal-mount .xterm-viewport {
    overflow: hidden !important;
}
.ai-terminal-mount .xterm-screen {
    width: 100% !important;
    box-sizing: border-box;
}
.ai-terminal-hint {
    flex-shrink: 0;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* 终端区 Tab：控制台 + Log 窗 */
.terminal-tabs {
    display: flex;
    align-items: center;
    gap: 2px;
    border-bottom: 1px solid var(--border);
    padding: 0 6px 0 0;
    flex-shrink: 0;
    margin-bottom: 6px;
}
/* 合并版顶栏：把"SSH 控制台 · 主机"以及连接状态作为右侧元信息直接放进 tabs 行，
   省去原先独立的 .card-header 行，腾出 ~40px 给终端可视区。 */
.terminal-tabs.ai-terminal-header {
    margin-bottom: 6px;
    padding-right: 4px;
}
.ai-terminal-header-meta {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 8px;
    font-size: 12px;
    color: var(--text-muted);
    overflow: hidden;
    min-width: 0;
}
.ai-terminal-header-title {
    color: var(--text-secondary);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 240px;
}
.ai-terminal-header-sep {
    opacity: 0.5;
}
.ai-terminal-status {
    color: var(--text-muted);
    white-space: nowrap;
}
.terminal-tab-btn {
    padding: 6px 12px;
    font-size: 13px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    margin-bottom: -1px;
    transition: color 0.15s, border-color 0.15s;
}
.terminal-tab-btn:hover { color: var(--text-primary); }
.terminal-tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.ai-console-tabs-row {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 6px;
    min-height: 28px;
}
/* "不自动切换"开关与"+ 新建控制台"等按钮共占一行（靠右），不再独占 38px */
.ai-console-auto-switch-label {
    order: 99;
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
    color: var(--text-muted);
    user-select: none;
}
.ai-console-auto-switch-label input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--accent);
}
.ai-console-tab-wrap {
    display: inline-flex;
    align-items: center;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}
.ai-console-tab-wrap.active .terminal-tab-btn {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.ai-console-tab {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}
.ai-console-tab-close {
    padding: 0 4px;
    margin-left: 4px;
    font-size: 14px;
    line-height: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 2px;
    transition: color 0.15s, background 0.15s;
}
.ai-console-tab-close:hover { color: var(--text-primary); background: rgba(59, 130, 246, 0.12); }
/* AI 控制台主 tab 内容：纵向排列（标签行 + 面板区 + 提示），面板区占满剩余高度 */
#aiTabConsole {
    flex-direction: column;
    min-height: 0;
}
.ai-console-empty-state {
    flex: 1;
    min-height: 120px;
}
#aiConsolePanels,
.ai-console-panels {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.ai-console-panel.terminal-tab-panel {
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.terminal-tab-panel {
    display: none;
    flex: 1;
    min-height: 0;
    flex-direction: column;
    overflow: hidden;
}
.terminal-tab-panel.active {
    display: flex;
}

/* 主机详情 / AI 页：远程文件系统 tab */
.remote-fs-layout {
    display: flex;
    flex: 1;
    min-height: 0;
    width: 100%;
}
.remote-fs-tree-wrap {
    width: 220px;
    flex-shrink: 0;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    min-height: 0;
    position: relative;
}
.remote-fs-ctxmenu {
    display: none;
    position: fixed;
    z-index: 1000;
    min-width: 120px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    padding: 4px 0;
}
.remote-fs-ctxmenu.open {
    display: block;
}
.remote-fs-ctxitem {
    display: block;
    width: 100%;
    padding: 6px 14px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
}
.remote-fs-ctxitem:hover {
    background: var(--bg-input);
}
.remote-fs-tree-header {
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}
.remote-fs-host-row {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}
.remote-fs-host-row .form-control { min-width: 0; }
.remote-fs-tree {
    flex: 1;
    overflow-y: auto;
    padding: 6px 0;
    font-size: 13px;
}
.remote-fs-tree-list { list-style: none; margin: 0; padding-left: 12px; }
.remote-fs-tree-item { margin: 1px 0; }
.remote-fs-tree-item .remote-fs-tree-arrow { cursor: pointer; margin-right: 4px; }
.remote-fs-tree-label { cursor: pointer; }
.remote-fs-tree-label:hover { color: var(--accent); }
.remote-fs-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.remote-fs-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.remote-fs-path { flex: 1; min-width: 0; font-family: monospace; font-size: 12px; }
.remote-fs-preview {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    padding: 12px;
    display: flex;
    flex-direction: column;
}
.remote-fs-preview-inner {
    flex: 1;
    min-height: 0;
    overflow: auto;
    font-size: 13px;
    line-height: 1.5;
}
.remote-fs-preview-inner:has(.remote-fs-edit) {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.remote-fs-pre { margin: 0; font-size: 12px; }
.remote-fs-edit {
    display: block;
    flex: 1;
    min-height: 0;
    width: 100%;
    margin: 0;
    padding: 10px 12px;
    font-family: var(--font-mono, monospace);
    font-size: 12px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    border: none;
    resize: none;
    box-sizing: border-box;
    background: var(--bg-input);
    color: var(--text-primary);
    border-radius: var(--radius);
}

/* AI 执行 Log 窗 */
.ai-log-window {
    flex: 1;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
    border-radius: var(--radius);
}
.ai-log-toolbar {
    flex-shrink: 0;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
}
.ai-log-entries {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
    font-family: ui-monospace, monospace;
    font-size: 12px;
    line-height: 1.5;
}
.ai-log-entry {
    margin-bottom: 10px;
    padding: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border-left: 3px solid var(--border);
}
.ai-log-entry.status-completed { border-left-color: var(--success); }
.ai-log-entry.status-failed { border-left-color: var(--danger); }
.ai-log-entry.status-executing { border-left-color: var(--info); }
.ai-log-entry-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.ai-log-entry-time { font-size: 11px; color: var(--text-muted); }
.ai-log-entry-tool { font-weight: 600; color: var(--accent); }
.ai-log-entry-args { font-size: 11px; color: var(--text-secondary); word-break: break-all; }
.ai-log-entry-result { white-space: pre-wrap; word-break: break-all; color: var(--text-primary); max-height: 6em; overflow: hidden; }
.ai-log-entry-result.full { max-height: none; }
.ai-log-empty { color: var(--text-muted); font-size: 12px; padding: 12px; }

/* 聊天区：与页面高度相适应 */
.ai-chat-container {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    overflow: hidden;
}
/* 主机详情 AI 聊天窗顶部控制栏（不随聊天内容滚动） */
.host-ai-chat-bar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    align-self: stretch;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    box-sizing: border-box;
}
.host-ai-chat-bar .host-ai-clear-n {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.host-ai-chat-bar .host-ai-clear-n input { padding: 4px 6px; }
.ai-chat-container .chat-messages {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 20px;
}
.ai-chat-container .chat-input-area {
    flex-shrink: 0;
}

.ai-runtime-control-bar {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 8px 14px 10px 14px;
    border-top: 1px dashed var(--border);
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.06), rgba(56, 189, 248, 0.02));
}
.ai-runtime-control-tip {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    align-self: center;
}
.ai-runtime-control-input {
    min-width: 220px;
    flex: 1;
}
.ai-runtime-control-inline {
    flex: 1;
    min-width: 0;
    padding: 0;
    border-top: 0;
    background: transparent;
}
.chat-input-area.runtime-control-active {
    align-items: center;
}
.chat-input-area.runtime-control-active .chat-low-interaction-toggle {
    display: none;
}
.chat-input-area.runtime-control-active .ai-runtime-control-inline {
    display: flex;
}
.chat-input-area.runtime-control-active .ai-runtime-control-input {
    min-width: 140px;
}
.chat-input-area.runtime-awaiting-confirm .chat-input-multiline:not(.ai-runtime-control-input) {
    opacity: 1;
}
.chat-input-area.runtime-awaiting-confirm .ai-runtime-control-tip {
    color: var(--warning, #d97706);
}
.ai-reply-incomplete-banner {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid rgba(245, 158, 11, 0.45);
    background: rgba(245, 158, 11, 0.12);
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.45;
}
.ai-runtime-confirm-card {
    margin-top: 10px;
    border: 1px solid rgba(56, 189, 248, 0.38);
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.1), rgba(15, 23, 42, 0.22));
    border-radius: 10px;
    padding: 10px 12px;
}
.ai-runtime-confirm-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.ai-runtime-confirm-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.ai-runtime-confirm-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mobile-ai-inline-only {
    display: none;
}

/* AI 助手手机版：独立全屏，顶部终端、底部聊天 */
html.edgeops-mobile-ai,
body.edgeops-mobile-ai {
    width: 100%;
    height: var(--edgeops-mobile-app-height);
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: manipulation;
}
html.edgeops-mobile-ai {
    position: fixed;
    inset: 0;
}
body.edgeops-mobile-ai #app {
    display: block;
    position: fixed;
    inset: 0;
    width: 100%;
    min-height: var(--edgeops-mobile-app-height);
    height: var(--edgeops-mobile-app-height);
}
body.edgeops-mobile-ai .sidebar {
    display: none !important;
}
body.edgeops-mobile-ai .mobile-quick-actions {
    display: none !important;
}
body.edgeops-mobile-ai .main-content {
    margin-left: 0 !important;
    width: 100%;
    min-height: var(--edgeops-mobile-app-height);
    height: var(--edgeops-mobile-app-height);
    max-height: var(--edgeops-mobile-app-height);
    overflow: hidden;
}
body.edgeops-mobile-ai #page-content {
    display: flex;
    flex-direction: column;
    padding: 0 !important;
    max-height: none !important;
    min-height: var(--edgeops-mobile-app-height);
    height: var(--edgeops-mobile-app-height);
    overflow: hidden;
}
body.edgeops-mobile-ai #page-content > .topbar.mobile-ai-topbar {
    flex-shrink: 0;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    padding-top: max(10px, env(safe-area-inset-top));
}
body.edgeops-mobile-ai #page-content > .topbar.mobile-ai-topbar h2 {
    font-size: 15px;
}
body.edgeops-mobile-ai .ai-mobile-page.ai-page-layout {
    padding-left: 0;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
    height: calc(var(--edgeops-mobile-app-height) - 56px - env(safe-area-inset-top));
    max-height: calc(var(--edgeops-mobile-app-height) - 56px - env(safe-area-inset-top));
}
body.edgeops-mobile-ai .ai-mobile-page .layout-splitter-vertical {
    display: none !important;
}
body.edgeops-mobile-ai .ai-mobile-page .ai-left-sidebar {
    position: fixed;
    left: 0;
    top: 56px;
    bottom: 0;
    z-index: 40;
}
body.edgeops-mobile-ai .ai-mobile-page .ai-left-sidebar-tabs {
    display: none;
}
body.edgeops-mobile-ai .ai-mobile-page .ai-left-sidebar-panel {
    width: min(82vw, 320px);
    min-width: 0;
    max-width: 82vw;
    border-radius: 0 12px 12px 0;
    transform: translateX(-100%);
    box-shadow: 6px 0 20px rgba(0,0,0,0.22);
}
body.edgeops-mobile-ai .ai-mobile-page .ai-left-sidebar.open .ai-left-sidebar-panel {
    transform: translateX(0);
}
body.edgeops-mobile-ai .ai-mobile-page .ai-layout-terminal {
    flex: 0 0 46%;
    min-height: 240px;
}
body.edgeops-mobile-ai .ai-mobile-page.ai-mobile-terminal-collapsed .ai-layout-terminal {
    display: none !important;
}
body.edgeops-mobile-ai .ai-mobile-page.ai-mobile-terminal-collapsed .ai-layout-chat {
    flex: 1 1 100%;
    height: 100%;
    min-height: 0;
    max-height: 100%;
}
body.edgeops-mobile-ai .ai-mobile-page .ai-layout-chat {
    flex: 1 1 auto;
    min-height: 0;
}
body.edgeops-mobile-ai .ai-mobile-page.ai-mobile-terminal-collapsed {
    position: relative;
    height: 100% !important;
    max-height: 100% !important;
}
body.edgeops-mobile-ai .ai-mobile-page.ai-mobile-terminal-collapsed .ai-layout-chat {
    position: absolute;
    inset: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
}
body.edgeops-mobile-ai .ai-mobile-page .ai-chat-container,
body.edgeops-mobile-ai .ai-mobile-page.ai-mobile-terminal-collapsed .ai-chat-container {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    max-height: 100%;
}
body.edgeops-mobile-ai .ai-mobile-page.ai-mobile-terminal-collapsed .chat-messages {
    flex: 1 1 auto;
    min-height: 0;
}
body.edgeops-mobile-ai .mobile-ai-inline-only {
    display: inline-flex;
}
body.edgeops-mobile-ai .ai-mobile-page .host-ai-chat-bar {
    gap: 6px;
    padding: 8px 10px;
    overflow-x: auto;
    white-space: nowrap;
}
body.edgeops-mobile-ai .ai-mobile-page .chat-messages {
    padding: 12px;
}
body.edgeops-mobile-ai .ai-mobile-page .chat-input-area {
    padding: 10px;
    gap: 6px;
    padding-bottom: max(10px, env(safe-area-inset-bottom));
}
body.edgeops-mobile-ai .ai-mobile-page .chat-input-area .chat-input-multiline {
    min-height: 44px;
}
body.edgeops-mobile-ai.edgeops-mobile-chat-focus #page-content > .topbar.mobile-ai-topbar,
body.edgeops-mobile-ai.edgeops-mobile-chat-focus .ai-mobile-page .host-ai-chat-bar {
    display: none !important;
}
body.edgeops-mobile-ai.edgeops-mobile-chat-focus .ai-mobile-page.ai-page-layout {
    height: var(--edgeops-mobile-app-height);
    max-height: var(--edgeops-mobile-app-height);
}
body.edgeops-mobile-ai.edgeops-mobile-chat-focus .ai-mobile-page .ai-layout-chat {
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
}
body.edgeops-mobile-ai.edgeops-mobile-chat-focus .ai-mobile-page .chat-messages {
    padding-top: 10px;
    padding-bottom: 12px;
}
body.edgeops-mobile-ai.edgeops-mobile-chat-focus .ai-mobile-page .chat-input-area {
    position: sticky;
    bottom: 0;
    z-index: 8;
    background: rgba(15, 23, 42, 0.96);
    box-shadow: 0 -10px 24px rgba(2, 6, 23, 0.32);
    backdrop-filter: blur(12px);
}
body.edgeops-mobile-ai.edgeops-mobile-chat-focus .ai-mobile-page .chat-input-area .btn {
    flex-shrink: 0;
}
body.edgeops-mobile-ai .ai-mobile-page .remote-fs-layout {
    flex-direction: column;
}
body.edgeops-mobile-ai .ai-mobile-page .remote-fs-tree-wrap {
    width: 100%;
    max-height: 34%;
    border-right: none;
    border-bottom: 1px solid var(--border);
}

/* ── 服务器树 ── */
.server-tree-search-input {
    min-width: 160px;
    max-width: 280px;
    flex: 1;
    margin-left: 8px;
}
.server-tree-search-hidden {
    display: none !important;
}
.server-tree-search-empty {
    width: 100%;
    max-width: min(760px, 100%);
    padding: 12px 14px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-muted);
    background: rgba(148, 163, 184, 0.08);
    border-radius: 10px;
    border: 1px dashed rgba(148, 163, 184, 0.25);
}
.server-tree-page .page-content {
    padding: 16px;
    min-height: 0;
}
.server-tree-root {
    user-select: none;
    outline: none;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}
.server-tree-user {
    width: fit-content;
    min-width: min(520px, 100%);
    max-width: min(760px, 100%);
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.82), rgba(11, 18, 35, 0.92));
    box-shadow: 0 8px 20px rgba(2, 6, 23, 0.22);
    overflow: hidden;
}
.server-tree-user-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.14);
    background: rgba(30, 41, 59, 0.42);
}
.server-tree-user-inner {
    padding: 8px;
    border-radius: 10px;
    transition: background 0.15s ease, border-color 0.15s ease;
}
.server-tree-user-inner.server-tree-top-drop,
.server-tree-root.server-tree-top-drop {
    background: rgba(59, 130, 246, 0.08);
    outline: 1px dashed rgba(96, 165, 250, 0.45);
    outline-offset: -1px;
}
.server-tree-user-title-wrap {
    min-width: 0;
}
.server-tree-user-title {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}
.server-tree-user-subtitle {
    margin-top: 2px;
    font-size: 11px;
    color: var(--text-muted);
}
.server-tree-user-meta,
.server-tree-group-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.server-tree-badge {
    display: inline-flex;
    align-items: center;
    padding: 1px 7px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.14);
    border: 1px solid rgba(96, 165, 250, 0.2);
    color: #c7dcff;
    font-size: 11px;
    line-height: 1.45;
}
.server-tree-flat-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
    padding: 0 4px;
}
.server-tree-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin: 2px 0;
    cursor: pointer;
}
.server-tree-group-row {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.48);
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
    cursor: grab;
}
.server-tree-group-row:active {
    cursor: grabbing;
}
.server-tree-group:hover .server-tree-group-row {
    background: rgba(30, 41, 59, 0.72);
    border-color: rgba(96, 165, 250, 0.18);
    transform: translateY(-1px);
}
.server-tree-group.server-tree-drag-over .server-tree-group-row {
    background: rgba(59, 130, 246, 0.16);
    border: 1px dashed var(--accent);
}
.server-tree-group-body {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.server-tree-group-label {
    flex: 1;
    min-width: 0;
    font-weight: 600;
    font-size: 12px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.server-tree-chevron {
    width: 16px;
    font-size: 10px;
    color: var(--text-muted);
    flex-shrink: 0;
    text-align: center;
}
.server-tree-children {
    width: 100%;
    margin-left: 14px;
    margin-top: 5px;
    display: none;
}
.server-tree-children.open {
    display: block;
}
.server-tree-host {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 8px 5px 18px;
    border-radius: var(--radius);
    margin: 2px 0;
    background: rgba(8, 15, 30, 0.26);
    border: 1px solid transparent;
    font-size: 12px;
    cursor: pointer;
}
.server-tree-host:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(96, 165, 250, 0.15);
}
.server-tree-host-icon {
    width: 14px;
    text-align: center;
    color: #5fb0ff;
    font-size: 9px;
    flex-shrink: 0;
}
.server-tree-host-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.server-tree-host-title {
    color: var(--text-primary);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.server-tree-host-meta {
    color: var(--text-muted);
    font-size: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.server-tree-host-flat {
    padding-left: 8px;
}
.server-tree-ungrouped {
    margin-top: 8px;
    padding: 8px;
    border: 1px dashed rgba(148, 163, 184, 0.22);
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.28);
}
.server-tree-ungrouped.server-tree-drag-over {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent);
}
.server-tree-ungrouped-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 6px;
    padding-left: 4px;
}
.server-tree-context-menu {
    display: none;
    position: fixed;
    z-index: 9999;
    min-width: 140px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 4px 0;
}
.server-tree-context-menu.open {
    display: block;
}
.server-tree-context-item {
    padding: 8px 14px;
    font-size: 13px;
    cursor: pointer;
}
.server-tree-context-item:hover {
    background: rgba(59, 130, 246, 0.15);
}
@media (max-width: 900px) {
    .server-tree-user {
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }
    .server-tree-user-header,
    .server-tree-group-body {
        flex-direction: column;
        align-items: flex-start;
    }
    .server-tree-user-meta,
    .server-tree-group-meta {
        width: 100%;
    }
}

/* ═══════════════════════════════════════════════
   视觉打磨层（v=16 起）：在不改变功能的前提下统一界面观感。
   - 顶部栏 / 侧栏 / 卡片 / 按钮 / 表单 / 模态框 等的现代化收口。
   - 终端可视区已通过合并 header/tabs/开关行单独腾出空间，本节只做细节。
   ═══════════════════════════════════════════════ */

/* 全局更柔和的字体渲染、稳定的字距 */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 顶部栏：半透明 + 模糊 + 微弱底部分隔阴影，更"贴近系统"的科技感 */
.topbar {
    background: linear-gradient(180deg, rgba(17, 24, 39, 0.92), rgba(17, 24, 39, 0.78));
    border-bottom: 1px solid rgba(100, 116, 139, 0.22);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.4), 0 6px 18px -12px rgba(0, 0, 0, 0.6);
}
.topbar h2 {
    font-weight: 600;
    letter-spacing: 0.2px;
}

/* 侧栏：标题与 active 项更精致 */
.sidebar-header h1 {
    background: linear-gradient(135deg, #60a5fa, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.nav-item {
    border-radius: 0;
    position: relative;
}
.nav-item.active {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.18), rgba(59, 130, 246, 0.04));
}
.nav-item.active::after {
    content: '';
    position: absolute;
    right: 0;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: var(--accent);
    opacity: 0.5;
    border-radius: 2px 0 0 2px;
}
.sidebar.sidebar-collapsed .nav-item.active::after { display: none; }

/* 卡片：默认更平、悬停时一点 lift；终端 card 不参与 lift（避免抖动） */
.card {
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.card:not(.ai-terminal-card):hover {
    border-color: rgba(100, 116, 139, 0.45);
    box-shadow: 0 6px 20px -12px rgba(0, 0, 0, 0.45);
}

/* 按钮：稍带 hover 反馈，避免"扁平到看不见" */
.btn {
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 6px -2px rgba(59, 130, 246, 0.45); }
.btn-primary:hover { box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset, 0 2px 10px -2px rgba(59, 130, 246, 0.55); }
.btn-danger { box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 6px -2px rgba(239, 68, 68, 0.45); }

/* 表单焦点：更柔和的发光圈 */
.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* badge：统一字号 / 大小 / 字距 */
.badge {
    line-height: 1.4;
    letter-spacing: 0.2px;
}

/* 模态框：进入时轻微淡入与上推，更顺滑 */
.modal-overlay {
    animation: edgeops-modal-fade 0.16s ease-out;
}
.modal-overlay > .modal {
    animation: edgeops-modal-pop 0.2s cubic-bezier(0.2, 0.8, 0.2, 1.05);
}
@keyframes edgeops-modal-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes edgeops-modal-pop {
    from { opacity: 0; transform: translateY(8px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 聊天输入区更紧凑 */
.chat-input-area {
    padding: 8px 12px;
}

/* 主机详情：tab 面板与上方 tabs 衔接处更干净（去掉重复 padding） */
.host-detail-tab-panel {
    padding-top: 0;
}

/* ai-page-layout 内分隔条更纤细，hover 时强调 */
.layout-splitter-vertical {
    width: 4px;
    background: rgba(100, 116, 139, 0.18);
    transition: background 0.15s, width 0.15s;
}
.layout-splitter-vertical:hover,
.layout-splitter-vertical.dragging {
    width: 4px;
    background: var(--accent);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.25);
}

/* 终端 card 头条 hover 时的轻微提示 */
.terminal-tab-btn:not(.active):hover {
    background: rgba(59, 130, 246, 0.06);
    border-radius: 4px 4px 0 0;
}