:root {
    --bg-base: #0a0a0a;
    --bg-panel: #111111;
    --bg-card: rgba(255,255,255,0.05);
    --border-color: #27272a;
    --text-main: #f4f4f5;
    --text-sub: #a1a1aa;
    --accent: #a78bfa;
    --accent-hover: #8b5cf6;
    /* Dialog/popup unified theme tokens (added 2026-06-11) */
    --overlay-bg: rgba(0,0,0,0.6);
    --bg-elevated: #18181a;
    --hover-tint: rgba(255,255,255,0.08);
}

body, html { 
    margin: 0; padding: 0; width: 100%; height: 100%; 
    background-color: var(--bg-base); 
    font-family: system-ui, -apple-system, sans-serif; 
    color: var(--text-main); 
    overflow: hidden; 
    user-select: none; 
    -webkit-user-select: none; 
}
textarea, input { user-select: auto; -webkit-user-select: auto; }

/* 无限画布 (去掉了顶部栏，所以高度是 100vh) */
#workspace-view { position: relative; width: 100vw; height: 100vh; overflow: hidden; }
#canvas-container { 
    width: 100%; height: 100%; position: relative; 
    background-image: radial-gradient(#2a2a2a 1px, transparent 1px); 
    background-size: 20px 20px; cursor: grab;
    touch-action: none;             /* 阻止浏览器吃掉横向手势、双指缩放消耗到页面层 */
    -webkit-overflow-scrolling: auto;
    overscroll-behavior: none;
}
#canvas-container:active { cursor: grabbing; }
#canvas-pan-layer { position: absolute; top: 0; left: 0; width: 100%; height: 100%; transform-origin: 0 0; }
#svg-canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; overflow: visible; }
#nodes-layer { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 10; }

/* 连线 */
.connection-line { fill: none; stroke: var(--accent); stroke-width: 2.5px; stroke-linecap: round; }
.temp-line { stroke: #666; stroke-dasharray: 4,4; }

/* 节点通用质感 */
.node {
    position: absolute; background: rgba(24, 24, 26, 0.75); border: 1px solid rgba(255, 255, 255, 0.1); 
    border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.8); backdrop-filter: blur(20px);
    display: flex; flex-direction: column; width: 600px; pointer-events: auto;
}
.node-header {
    padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,0.05); cursor: grab; font-size: 14px; font-weight: 600;
    display: flex; justify-content: space-between; align-items: center; border-radius: 12px 12px 0 0; 
    background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, transparent 100%);
}
.node-header:active { cursor: grabbing; }
.node-content { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
/* 2026-08-28：图/视频缩略图可拖放的落地高亮——拖到某个节点时给虚线框示意 */
.node.drag-over { outline: 2px dashed #a78bfa; outline-offset: 6px; box-shadow: 0 0 0 4px rgba(167,139,250,0.12); }

/* 2026-06-27：节点折叠状态——双击 header 后只保留生成结果。
   ⚠ 不用 .collapsed！全局 CSS 里 .collapsed { display:none } 会把整个节点隐藏。
   用 .node-collapsed 隔离命名。*/
.node.node-collapsed .node-content {
    padding: 8px;
    gap: 0;
}
/* 显式枚举要隐藏的元素（textarea/select/button/标签/补助文本/row-params 等），不用 :not 反向排除避免误伤 */
.node.node-collapsed .node-content > textarea,
.node.node-collapsed .node-content > select,
.node.node-collapsed .node-content > button,
.node.node-collapsed .node-content > label,
.node.node-collapsed .node-content > .row-params,
.node.node-collapsed .node-content > .row-sound {
    display: none !important;
}
/* 提示文本：那些摆在 ref-box 上面的 "● 参考源" / "● 视觉参考" 小字 div，通过背景颜色识别不可靠，改用仅折叠后隐藏含子节点为纯文本的直接 div。简化为：隐藏所有不含 res-container/ref-box/port-group/以及任何 .res-wrapper 的中性 div */
.node.node-collapsed .node-content > div:not(.res-container):not(.ref-box):not(.res-wrapper):not(.port-group) {
    display: none !important;
}
/* ref-box 压缩为 0 高，边框、背景、内里的文本都不可见。
   留着 DOM 不 display:none——因为 port-group 是它的 absolute 子元素，需要保留渲染上下文。
   overflow visible 让 port-group 跳出边界显示。*/
.node.node-collapsed .node-content > .ref-box {
    height: 0 !important;
    min-height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    background: transparent !important;
    overflow: visible !important;
}
.node.node-collapsed .node-content > .ref-box > *:not(.port-group) {
    display: none !important;
}
/* 折叠状态视觉提示：header 加 accent 边框 + 背景差异。
   chevron 图标装在标题 span 里面（::before），不用 ::after 避免被 flex 布局当第三个子元素挤入 close 按钮位置 */
.node.node-collapsed .node-header {
    background: linear-gradient(180deg, rgba(167,139,250,0.10) 0%, transparent 100%);
    border-bottom: 1px solid rgba(167,139,250,0.4);
}
.node.node-collapsed .node-header > span:first-child::before {
    content: "▶";
    font-size: 10px;
    color: var(--accent, #a78bfa);
    margin-right: 6px;
    opacity: 0.7;
    display: inline-block;
}
/* 折叠时：input port 多个点合并为 1 个（视觉上），通过累叠 absolute 定位。
   ref-box 高 0 后，port-group 仍是它的 absolute 子，需要重新错锈让 port-group 出现在 ref-box 中心位置（均郁 ref-box 的 0px height）。
   DOM 中所有 .port.in 实体保留（保留事件 + getBoundingClientRect 需要它们），只是堆叠在同一点上 */
.node.node-collapsed .node-content > .ref-box > .port-group {
    /* ref-box 氊吐 height:0，port-group absolute 的 top:0/bottom:0 会被压出 闭区间，
       明确设为 top:50% + translateY 让 port 保持在节点高度的合适位置（接近 res-container 上边）*/
    top: 0 !important;
    bottom: auto !important;
    height: 0 !important;
    min-height: 0 !important;
    gap: 0 !important;
    transform: translateY(-50%) !important;
}
.node.node-collapsed .port-group > .port.in {
    /* 所有 in port 重叠到 port-group 顶部（也就是压缩后 ref-box 的中心）*/
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    margin: 0 !important;
}

/* 端口 */
.port { 
    width: 14px; 
    height: 14px; 
    border-radius: 50%; 
    
    /* ✅ 默认：蓝色空心 */
    background: transparent; 
    border: 2px solid var(--accent); 
    
    position: absolute; 
    cursor: crosshair; 
    z-index: 15; 
    transition: all 0.2s ease;

    /* ✅ 关键：抗缩放（解决变扁） */
    transform: translateY(-50%) scale(calc(1 / var(--canvas-scale, 1)));
    transform-origin: center;
}
.port:hover { 
    box-shadow: 0 0 8px var(--accent);
    border-color: #fff;
}
.port.out { 
    right: -8px; 
    top: 50%; 
}

.port.in { 
    left: -8px; 
    top: 50%; 
}
.port.connected { background: var(--accent); border-color: var(--accent); }
.port-group { position: absolute; left: -8px; top: 0; bottom: 0; display: flex; flex-direction: column; justify-content: center; gap: 10px; width: 14px;}
.port-group .port { position: static; transform: none; }

/* 动态参考源区域 */
.ref-box { border: 1px solid #333; border-radius: 8px; padding: 10px; background: rgba(0,0,0,0.2); min-height: 60px; display: flex; flex-wrap: wrap; gap: 8px; position: relative; }
.ref-thumbnail { width: 45px; height: 60px; border-radius: 4px; object-fit: cover; border: 1px solid #555; animation: popIn 0.3s ease; }
@keyframes popIn { from { transform: scale(0.5); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.ref-placeholder { font-size: 12px; color: #666; width: 100%; text-align: center; line-height: 40px; }

/* 表单细节 (🌟这里修改了 resize: vertical，允许垂直拉长) */
textarea { width: 100%; min-height: 60px; height: 90px; background: rgba(0,0,0,0.3); border: 1px solid #333; border-radius: 8px; color: #ddd; padding: 10px; font-size: 13px; resize: vertical; outline: none; box-sizing: border-box; }
textarea:focus { border-color: var(--accent); }
.row-params { display: flex; gap: 8px; }
select { flex: 1; background: rgba(0,0,0,0.5); border: 1px solid #444; color: #ddd; padding: 8px; border-radius: 6px; outline: none; font-size: 12px; cursor: pointer; }
.run-btn { background: #7c3aed; color: white; border: none; padding: 10px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 4px; transition: 0.2s;}
.run-btn:hover { background: #8b5cf6; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);}

/* 快捷悬浮菜单 */
.context-menu {
    position: absolute; background: rgba(24, 24, 26, 0.85); border: 1px solid #333;
    border-radius: 12px; padding: 8px; box-shadow: 0 10px 40px rgba(0,0,0,0.6);
    backdrop-filter: blur(20px); z-index: 9999; min-width: 150px;
    animation: menuFadeIn 0.15s ease-out;
}
@keyframes menuFadeIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.menu-item {
    padding: 10px 14px; color: #ddd; font-size: 13px; font-weight: 500; cursor: pointer;
    border-radius: 8px; display: flex; align-items: center; gap: 10px; transition: 0.2s;
}
.menu-item i { font-size: 16px; color: var(--text-sub); transition: 0.2s;}
.menu-item:hover { background: rgba(255,255,255,0.1); color: #fff; }
.menu-item:hover i { color: var(--accent); }
.menu-sep { height: 1px; background: #333; margin: 4px 0; }

/* 提示弹窗 */
#toast-container { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 10px; pointer-events: none; }
.toast { background: rgba(24,24,26,0.9); color: #fff; padding: 10px 20px; border-radius: 30px; font-size: 14px; border: 1px solid #333; backdrop-filter: blur(10px); }

/* 注册表单 */
.auth-toggle-link { color: var(--accent); cursor: pointer; text-align: center; font-size: 13px; margin-top: 4px; }
.auth-toggle-link:hover { text-decoration: underline; }
.register-panel { display: flex; flex-direction: column; gap: 14px; }
.register-section-title { font-size: 13px; color: var(--accent); font-weight: 600; margin-top: 6px; padding-bottom: 6px; border-bottom: 1px solid var(--border-color); }
.key-pair-row { display: flex; gap: 8px; align-items: center; }
.key-pair-row input { flex: 1; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-base); color: var(--text-main); outline: none; font-size: 13px; }
.key-pair-row .btn-remove-key { width: 32px; height: 32px; border-radius: 8px; border: 1px solid #ef4444; background: transparent; color: #ef4444; cursor: pointer; font-size: 16px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.key-pair-row .btn-remove-key:hover { background: rgba(239,68,68,0.15); }
.btn-add-key { padding: 6px 14px; border-radius: 8px; border: 1px dashed var(--border-color); background: transparent; color: var(--text-sub); cursor: pointer; font-size: 12px; transition: 0.2s; }
.btn-add-key:hover { border-color: var(--accent); color: var(--accent); }

/* 密钥管理弹窗 */
.key-modal-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.6); z-index: 9500; display: flex; justify-content: center; align-items: center; }
.key-modal { width: 440px; max-height: 80vh; overflow-y: auto; padding: 30px; background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,0.5); }
.key-modal h3 { margin: 0 0 20px 0; color: var(--text-main); font-size: 18px; }
.key-modal label { font-size: 13px; color: var(--text-sub); margin-bottom: 4px; display: block; }
.key-modal input { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-base); color: var(--text-main); outline: none; font-size: 13px; box-sizing: border-box; margin-bottom: 12px; }
.key-modal-actions { display: flex; gap: 10px; margin-top: 16px; }
.key-modal-actions button { flex: 1; padding: 10px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; }
.key-modal-actions .btn-save { background: #7c3aed; color: #fff; }
.key-modal-actions .btn-save:hover { background: #8b5cf6; }
.key-modal-actions .btn-cancel { background: var(--bg-card); color: var(--text-sub); border: 1px solid var(--border-color); }

/* 管理员 Tab 导航 */
.admin-tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 2px solid var(--border-color); }
.admin-tab { padding: 10px 24px; font-size: 14px; font-weight: 600; cursor: pointer; color: var(--text-sub); border-bottom: 2px solid transparent; margin-bottom: -2px; transition: 0.2s; }
.admin-tab:hover { color: var(--text-main); }
.admin-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* 使用量面板 */
.usage-summary-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.usage-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; text-align: center; }
.usage-card .card-value { font-size: 28px; font-weight: 800; color: var(--accent); margin-bottom: 4px; }
.usage-card .card-label { font-size: 12px; color: var(--text-sub); }
.usage-table { width: 100%; border-collapse: collapse; }
.usage-table th { text-align: left; padding: 10px 16px; font-size: 12px; color: var(--text-sub); font-weight: 600; border-bottom: 1px solid var(--border-color); }
.usage-table td { padding: 12px 16px; font-size: 13px; color: var(--text-main); border-bottom: 1px solid rgba(255,255,255,0.05); }
.usage-table tr:hover td { background: rgba(255,255,255,0.03); }
.usage-filter { display: flex; gap: 8px; margin-bottom: 16px; }
.usage-filter button { padding: 6px 16px; border-radius: 20px; border: 1px solid var(--border-color); background: transparent; color: var(--text-sub); cursor: pointer; font-size: 12px; transition: 0.2s; }
.usage-filter button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
/* ===== Groups + DetachResult (2026-06-29) ===== */
.group-frame {
    background: rgba(167,139,250,0.045);
    border: 1px solid rgba(167,139,250,0.42);
    border-radius: 16px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.28);
    transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
}
body.light-mode .group-frame {
    background: rgba(167,139,250,0.10);
    border-color: rgba(167,139,250,0.55);
}
.group-frame.group-dragging {
    border-color: var(--accent);
    background: rgba(167,139,250,0.10);
    box-shadow: 0 0 0 2px rgba(167,139,250,0.28), 0 14px 34px rgba(0,0,0,0.45);
}
.group-frame .group-header {
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 40px;
    padding: 0 16px;
    border-radius: 15px 15px 0 0;
    background: linear-gradient(180deg, rgba(167,139,250,0.24), rgba(167,139,250,0.08));
    border-bottom: 1px solid rgba(167,139,250,0.30);
    color: var(--text-main);
    font-size: 14px; font-weight: 600;
    display: flex; align-items: center; justify-content: space-between;
    cursor: grab; user-select: none;
    pointer-events: auto; /* 框体不拦点击，仅头部可拖拽 */
}
body.light-mode .group-frame .group-header {
    background: linear-gradient(180deg, rgba(167,139,250,0.30), rgba(167,139,250,0.10));
    border-bottom-color: rgba(167,139,250,0.55);
}
.group-frame .group-header:active { cursor: grabbing; }
.group-frame .group-name-text {
    letter-spacing: 0.3px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.group-frame .group-meta {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--text-sub); font-weight: 600; font-size: 12px;
    flex-shrink: 0;
}
.group-frame .group-count {
    background: rgba(167,139,250,0.22);
    color: #c4b5fd;
    padding: 2px 10px; border-radius: 999px;
    font-size: 12px; font-weight: 700;
}
body.light-mode .group-frame .group-count {
    color: #6d4fc0;
}
.group-frame .group-note-ico {
    color: #f59e0b;
    font-size: 16px;
    cursor: help;
}

/* StandaloneResultNode 小一点 */
.standalone-result-node .node-header {
    padding: 8px 12px !important;
    font-size: 12px !important;
}
.standalone-result-node .node-content {
    padding: 8px !important;
}
.standalone-result-node .res-wrapper {
    margin-bottom: 0 !important;
}


/* =============== \u624b\u673a\u7aef\u9002\u914d v1 (2026-07-01 May) =============== */
@media (max-width: 768px), (pointer: coarse) {
    /* \u753b\u5e03\uff1a\u786e\u4fdd\u4e0d\u88ab\u4fa7\u8fb9\u680f/home-view \u906e\u62e6 */
    body { -webkit-text-size-adjust: 100%; }

    /* \u9876\u90e8\u5de5\u5177\u680f\uff1a\u81ea\u52a8\u9002\u914d\u5c31\u884c\uff0c\u4f46\u7f29\u5c0f padding */
    .top-left-tools, .top-right-tools { top: 8px !important; }
    .top-left-tools { left: 8px !important; gap: 4px !important; }
    .top-right-tools { right: 8px !important; gap: 4px !important; }
    .tool-icon-btn {
        width: 40px !important; height: 40px !important;
        font-size: 18px !important;
    }
    /* \u53f3\u4e0b\u89d2\u5de5\u5177\u680f\uff08\u9501/\u94a5\u5319/\u9000\u51fa\uff09\u62ac\u9ad8\u4e00\u70b9\u5e76\u8ba9\u51fa\u4f4d\u7f6e */
    .bottom-right-tools { bottom: 16px !important; right: 12px !important; gap: 6px !important; }

    /* Agent FAB \u6321\u4e0d\u5230\u4e0b\u9762\u56fe\u6807 */
    .agent-fab { bottom: 76px !important; right: 12px !important; width: 52px !important; height: 52px !important; font-size: 24px !important; }
    .agent-fab.drawer-open { right: calc(100vw - 12px) !important; }
    /* Agent \u62bd\u5c49\uff1a\u5168\u5c4f\uff0c\u800c\u4e0d\u662f 360px */
    .agent-drawer { width: 100vw !important; }

    /* \u53f3\u4e0b\u89d2\u53e6\u4e00\u4e2a mobile-add-fab */
    #mobile-add-fab { bottom: 140px !important; right: 12px !important; }

    /* \u4fa7\u8fb9\u680f\uff08\u4efb\u52a1\u5217\u8868/\u6536\u85cf\uff09\uff1a\u5168\u5c4f\uff0c\u800c\u4e0d\u662f 380px */
    #left-sidebar, #right-sidebar { width: 100vw !important; max-width: 100vw !important; }

    /* \u83dc\u5355\uff1a\u5b57\u5927\u4e00\u70b9\u597d\u70b9 */
    .menu-item { padding: 12px 14px !important; font-size: 14px !important; min-height: 44px; }
    .context-menu { min-width: 200px !important; }

    /* \u8282\u70b9\uff1a\u624b\u673a\u4e0a\u5bbd\u5ea6\u9002\u5f53\u7f29\u5c0f + \u624b\u6307\u53cb\u597d\u7684 touch target */
    .node { min-width: 240px !important; }
    .node-header { padding: 10px 12px !important; font-size: 14px !important; min-height: 44px; }
    .port { width: 18px !important; height: 18px !important; }  /* \u62a5\u53f0\u624b\u6307\u597d\u63a5 */
    .node textarea { font-size: 15px !important; min-height: 60px !important; }  /* \u907f\u514d iOS auto-zoom \u81f3\u5c11 16px \u4e0b */
    .node select { font-size: 15px !important; padding: 8px 6px !important; height: 40px !important; }
    .node input[type=text], .node input[type=number] { font-size: 15px !important; height: 40px !important; }
    .run-btn { min-height: 44px !important; font-size: 15px !important; }

    /* home-view \u4e0d\u8981\u76d6\u4f4f\u5168\u5c4f */
    #home-view { padding: 12px !important; }
    .home-fn-card { min-width: 140px !important; }

    /* \u53f3\u952e\u83dc\u5355 mobile \u4f4d\u7f6e\u4fee\u6b63 */
    .context-menu { position: fixed !important; z-index: 10000 !important; }

    /* lightbox \u6ee1\u5c4f\u9002\u914d */
    .lightbox-overlay { padding: 0 !important; }
    .lightbox-content { max-width: 100vw !important; max-height: 100vh !important; }
}