/* ── 基础重置 ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0c0e14;
  --bg-soft: #10131b;
  --panel: #141823;
  --surface-1: rgba(255,255,255,.035);
  --surface-2: rgba(255,255,255,.055);
  --panel2: rgba(255,255,255,.035);
  --line: rgba(255,255,255,.07);
  --line-soft: rgba(255,255,255,.045);
  --text: #eef1f8;
  --text-dim: #b4bcce;
  --muted: #828ba4;
  --faint: rgba(140,155,185,.5);
  --accent: #5b8cff; --accent-hi: #7ba2ff; --accent2: #b06bff;
  --danger: #ff5b6e; --ok: #3ddc84; --warn: #ffb24d;
  --accent-soft: rgba(91,140,255,.1);
  --ctrl-bg: rgba(0,0,0,.22);
  --ctrl-border: rgba(255,255,255,.08);
  --glow: 0 0 0 2px rgba(91,140,255,.14);
  --sh-sm: 0 1px 3px rgba(0,0,0,.3);
  --sh-md: 0 4px 14px rgba(0,0,0,.4);
  --sh-lg: 0 16px 48px rgba(0,0,0,.55);
  --sh-inset: inset 0 1px 3px rgba(0,0,0,.28);
  --radius: 10px; --r-sm: 7px; --r-xs: 5px; --r-lg: 14px;
}

/* ── 白天模式 ── */
html[data-theme="light"] {
  --bg: #f4f5f7; --bg-soft: #edeef2; --panel: #fff; --panel2: rgba(0,0,0,.02);
  --surface-1: rgba(0,0,0,.03); --surface-2: rgba(0,0,0,.05);
  --line: rgba(0,0,0,.1); --line-soft: rgba(0,0,0,.06);
  --text: #1a1d26; --text-dim: #4a5068; --muted: #7c8298; --faint: rgba(80,90,120,.45);
  --ctrl-bg: rgba(0,0,0,.04); --ctrl-border: rgba(0,0,0,.12);
  --glow: 0 0 0 2px rgba(91,140,255,.18);
  --sh-sm: 0 1px 3px rgba(0,0,0,.08); --sh-md: 0 4px 14px rgba(0,0,0,.1);
  --sh-lg: 0 16px 48px rgba(0,0,0,.12); --sh-inset: inset 0 1px 3px rgba(0,0,0,.06);
  --accent-soft: rgba(91,140,255,.08);
}
html[data-theme="light"] body {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(91,140,255,.05), transparent 70%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(176,107,255,.03), transparent 70%),
    var(--bg);
}
html[data-theme="light"] select option { background: #fff; color: var(--text); }
html[data-theme="light"] ::selection { background: rgba(91,140,255,.25); }
html[data-theme="light"] ::-webkit-scrollbar-thumb { background: rgba(0,0,0,.12); }
html[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,.22); }
html[data-theme="light"] #topbar {
  background: linear-gradient(180deg, rgba(255,255,255,.95) 0%, rgba(245,247,250,.97) 100%);
  border-bottom-color: rgba(0,0,0,.08);
}
html[data-theme="light"] #topbar .logo .dot {
  box-shadow: 0 0 8px rgba(91,140,255,.35), 0 0 2px rgba(91,140,255,.5);
}
html[data-theme="light"] #topbar input.title {
  background: rgba(0,0,0,.03); border-color: rgba(0,0,0,.1);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.06);
}
html[data-theme="light"] #topbar input.title:focus {
  border-color: rgba(91,140,255,.4); background: rgba(255,255,255,.8);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.06), 0 0 0 2px rgba(91,140,255,.12);
}
html[data-theme="light"] .vdiv { background: rgba(0,0,0,.1); }
html[data-theme="light"] .btn {
  background: rgba(0,0,0,.04); border-color: rgba(0,0,0,.1);
  box-shadow: none;
}
html[data-theme="light"] .btn:hover { background: rgba(0,0,0,.07); border-color: rgba(0,0,0,.16); }
html[data-theme="light"] .btn:active { background: rgba(0,0,0,.05); }
html[data-theme="light"] .btn.primary {
  background: linear-gradient(135deg, var(--accent-hi), #6d6bff); color: #fff;
  box-shadow: 0 2px 12px rgba(91,140,255,.25), inset 0 1px 0 rgba(255,255,255,.5);
}
html[data-theme="light"] .btn.ghost:hover { background: rgba(0,0,0,.05); }
html[data-theme="light"] #assets {
  background: var(--panel); border-right-color: rgba(0,0,0,.08);
}
html[data-theme="light"] .assets-head { border-bottom-color: rgba(0,0,0,.06); }
html[data-theme="light"] .assets-empty { color: rgba(80,90,120,.4); }
html[data-theme="light"] .assets-tip { border-top-color: rgba(0,0,0,.06); }
html[data-theme="light"] .asset-card {
  background: rgba(0,0,0,.02); border-color: rgba(0,0,0,.07);
}
html[data-theme="light"] .asset-card:hover { border-color: rgba(91,140,255,.3); box-shadow: 0 4px 12px rgba(0,0,0,.1); }
html[data-theme="light"] .asset-thumb { background: #e8e9ed center/contain no-repeat; }
html[data-theme="light"] .asset-name { background: rgba(0,0,0,.02); color: rgba(40,48,70,.7); }
html[data-theme="light"] .asset-del { background: rgba(255,255,255,.85); color: #e05565; }
html[data-theme="light"] #assets-toggle {
  background: var(--panel); border-color: rgba(0,0,0,.08); border-left: none;
}
html[data-theme="light"] #canvas-wrap {
  background-color: #e8eaef;
  background-image: radial-gradient(circle, rgba(0,0,0,.06) 1px, transparent 1px);
}
html[data-theme="light"] #canvas-wrap::after {
  background: radial-gradient(ellipse at 50% 0%, rgba(91,140,255,.05), transparent 55%);
}
html[data-theme="light"] .node {
  background: linear-gradient(180deg, rgba(255,255,255,.97), rgba(245,247,252,.95));
  border-color: rgba(0,0,0,.08); box-shadow: 0 4px 16px rgba(0,0,0,.1), inset 0 1px 0 rgba(255,255,255,.8);
}
html[data-theme="light"] .node:hover { box-shadow: 0 8px 24px rgba(0,0,0,.14), inset 0 1px 0 rgba(255,255,255,.8); }
html[data-theme="light"] .node.selected {
  box-shadow: 0 0 0 2px rgba(91,140,255,.3), 0 8px 24px rgba(0,0,0,.14), inset 0 1px 0 rgba(91,140,255,.08);
}
html[data-theme="light"] .node .nhead { border-bottom-color: rgba(0,0,0,.06); }
html[data-theme="light"] .node .nhead .badge { background: rgba(0,0,0,.05); color: var(--muted); border-color: rgba(0,0,0,.07); }
html[data-theme="light"] .node .nhead .badge.start { background: rgba(61,220,132,.12); border-color: rgba(61,220,132,.2); }
html[data-theme="light"] .node .nhead .badge.timed { background: rgba(176,107,255,.12); color: #8b5ce6; border-color: rgba(176,107,255,.2); }
html[data-theme="light"] .node .nhead .badge.end { background: rgba(255,91,110,.1); color: #d94455; border-color: rgba(255,91,110,.15); }
html[data-theme="light"] .node .nhead .badge.cond { background: rgba(255,152,0,.1); color: #e68900; border-color: rgba(255,152,0,.15); }
html[data-theme="light"] .node .nvideo { color: var(--muted); }
html[data-theme="light"] .node .nvideo .ndur { color: rgba(0,0,0,.25); }
html[data-theme="light"] .node .nthumb { background: #dde0e6 center/contain no-repeat; border-bottom-color: rgba(0,0,0,.06); }
html[data-theme="light"] .node .nchoice { color: #4a5568; }
html[data-theme="light"] .node .nadd { border-top-color: rgba(0,0,0,.08); }
html[data-theme="light"] .node .nadd:hover { background: rgba(91,140,255,.06); }
html[data-theme="light"] .node .port { border-color: #e8eaef; }
html[data-theme="light"] .node .port:hover { background: var(--accent); box-shadow: 0 0 0 4px rgba(91,140,255,.2); }
html[data-theme="light"] .node .port.in { opacity: .5; }
html[data-theme="light"] .ctx-menu {
  background: rgba(255,255,255,.92); border-color: rgba(0,0,0,.1);
  box-shadow: 0 8px 24px rgba(0,0,0,.15); backdrop-filter: blur(12px);
}
html[data-theme="light"] .ctx-item:hover { background: rgba(91,140,255,.1); }
html[data-theme="light"] #minimap {
  background: rgba(255,255,255,.88); border-color: rgba(0,0,0,.1);
}
html[data-theme="light"] .annotation {
  border-color: rgba(91,140,255,.35); background: rgba(91,140,255,.06);
}
html[data-theme="light"] #stats-panel {
  border-top-color: rgba(0,0,0,.06); background: rgba(0,0,0,.02);
}
html[data-theme="light"] .edge-path.highlight { filter: drop-shadow(0 0 4px rgba(91,140,255,.4)); }
html[data-theme="light"] .edge-path.highlight.default { filter: drop-shadow(0 0 4px rgba(176,107,255,.4)); }
html[data-theme="light"] .edge-temp { stroke: #333; }
html[data-theme="light"] #inspector { background: var(--panel); border-left-color: rgba(0,0,0,.08); }
html[data-theme="light"] #tl-bar {
  background: linear-gradient(180deg, rgba(255,255,255,.97), rgba(245,247,250,.98));
  border-bottom-color: rgba(0,0,0,.06);
}
html[data-theme="light"] #tl-bar select {
  background: rgba(0,0,0,.03); border-color: rgba(0,0,0,.1);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.06);
}
html[data-theme="light"] #tl-bar select:focus {
  border-color: rgba(91,140,255,.4); box-shadow: inset 0 1px 2px rgba(0,0,0,.06), 0 0 0 2px rgba(91,140,255,.12);
}
html[data-theme="light"] #tl-bar select option { background: #fff; }
html[data-theme="light"] #tl-video-wrap { background: #fff; }
html[data-theme="light"] #tl-track-wrap { background: var(--panel); border-top-color: rgba(0,0,0,.08); }
html[data-theme="light"] .tl-btn {
  background: rgba(0,0,0,.04); border-color: rgba(0,0,0,.1);
  box-shadow: none;
}
html[data-theme="light"] .tl-btn:hover { background: rgba(91,140,255,.08); border-color: rgba(91,140,255,.35); }
html[data-theme="light"] .tl-btn.primary { background: linear-gradient(135deg, var(--accent-hi), #6d6bff); color: #fff; box-shadow: 0 2px 10px rgba(91,140,255,.2), inset 0 1px 0 rgba(255,255,255,.5); }
html[data-theme="light"] .tl-insp {
  --sec-bg: linear-gradient(180deg, rgba(0,0,0,.03), rgba(0,0,0,.01));
  --sec-border: rgba(0,0,0,.08);
  --ctrl-bg: rgba(0,0,0,.04); --ctrl-border: rgba(0,0,0,.12);
  --ctrl-focus: rgba(91,140,255,.45);
  --ctrl-glow: 0 0 0 2px rgba(91,140,255,.15);
  --label-c: rgba(60,70,100,.6); --unit-c: rgba(80,90,120,.4);
}
html[data-theme="light"] .tl-insp-node { border-bottom-color: rgba(0,0,0,.08); }
html[data-theme="light"] .tl-insp-node .tl-insp-sub { background: rgba(0,0,0,.04); }
html[data-theme="light"] .tl-sec-h::before { box-shadow: 0 0 6px rgba(91,140,255,.3); }
html[data-theme="light"] .tl-inp:hover, html[data-theme="light"] .tl-num:hover,
html[data-theme="light"] .tl-sel:hover, html[data-theme="light"] .tl-ta:hover { border-color: rgba(0,0,0,.18); }
html[data-theme="light"] .tl-inp:focus, html[data-theme="light"] .tl-num:focus,
html[data-theme="light"] .tl-sel:focus, html[data-theme="light"] .tl-ta:focus { background: rgba(255,255,255,.8); }
html[data-theme="light"] .tl-choice-card { background: rgba(0,0,0,.03); border-color: rgba(0,0,0,.06); }
html[data-theme="light"] .tl-x:hover { background: rgba(255,91,110,.1); }
html[data-theme="light"] .tl-add-btn { border-color: rgba(0,0,0,.12); }
html[data-theme="light"] .tl-add-btn:hover { background: rgba(91,140,255,.06); }
html[data-theme="light"] .tl-adv-toggle:hover { color: var(--accent); }
html[data-theme="light"] .tl-help { background: rgba(91,140,255,.04); border-color: rgba(0,0,0,.07); }
html[data-theme="light"] .tl-ix-tab { background: rgba(0,0,0,.03); border-color: rgba(0,0,0,.08); }
html[data-theme="light"] #tl-video-wrap .tl-empty { color: var(--muted); }
html[data-theme="light"] .ap-box { background: var(--panel); box-shadow: 0 20px 60px rgba(0,0,0,.15); }
html[data-theme="light"] .ap-item { background: var(--panel2); border-color: rgba(0,0,0,.08); }
html[data-theme="light"] .ap-item:hover { box-shadow: 0 8px 20px rgba(0,0,0,.1); }
html[data-theme="light"] .ap-item .apt { background: #e0e2e8 center/contain no-repeat; }
html[data-theme="light"] .vp-box { background: var(--panel); box-shadow: 0 20px 60px rgba(0,0,0,.15); }
html[data-theme="light"] .proj-item { background: rgba(0,0,0,.02); border-color: rgba(0,0,0,.07); }
html[data-theme="light"] .proj-item:hover { background: rgba(91,140,255,.06); }
html[data-theme="light"] .proj-item.current { background: rgba(61,220,132,.1); border-color: var(--ok); }
html[data-theme="light"] .proj-item .proj-del:hover { background: rgba(255,91,110,.12); }
html[data-theme="light"] .field input, html[data-theme="light"] .field textarea, html[data-theme="light"] .field select {
  background: rgba(0,0,0,.03); border-color: rgba(0,0,0,.1);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.06);
}
html[data-theme="light"] .field input:focus, html[data-theme="light"] .field textarea:focus, html[data-theme="light"] .field select:focus {
  border-color: rgba(91,140,255,.5); box-shadow: 0 0 0 2px rgba(91,140,255,.12);
}
html[data-theme="light"] #toast {
  background: rgba(255,255,255,.96); border-color: rgba(0,0,0,.08);
  box-shadow: 0 8px 30px rgba(0,0,0,.12); color: var(--text);
}
html[data-theme="light"] #toast.err { color: #c03040; }
html[data-theme="light"] #lxt-mark { color: rgba(0,0,0,.08) !important; }

html, body { height: 100%; background: var(--bg); color: var(--text);
  font-family: "Microsoft YaHei", system-ui, -apple-system, sans-serif; overflow: hidden;
  font-size: 14px; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body { display: flex; flex-direction: column;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(91,140,255,.04), transparent 70%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(176,107,255,.03), transparent 70%),
    var(--bg); }
input, select, textarea, button { font-variant-numeric: tabular-nums; }
select option { background: #161922; color: var(--text); }
::selection { background: rgba(91,140,255,.35); }
/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.08); border-radius: 5px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.16); background-clip: padding-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ── 顶栏工具栏 ── */
#topbar { height: 54px; flex: none; background: linear-gradient(180deg, rgba(22,25,35,.92) 0%, rgba(18,21,30,.95) 100%);
  backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,.04);
  display: flex; align-items: center; padding: 0 16px; gap: 8px; z-index: 10; overflow-x: auto; }
#topbar > *:not(.spacer) { flex-shrink: 0; }
#topbar .logo { font-size: 15px; font-weight: 700; margin-right: 8px; letter-spacing: .5px;
  display: flex; align-items: center; gap: 7px; }
#topbar .logo .dot { width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 8px rgba(91,140,255,.5), 0 0 2px rgba(91,140,255,.8); }
#topbar .logo span { background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
#topbar input.title { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.07);
  color: var(--text); padding: 8px 12px; border-radius: 8px; width: 190px; font-size: 13px; transition: .2s;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.25); }
#topbar input.title:focus { outline: none; border-color: rgba(91,140,255,.4);
  box-shadow: inset 0 1px 3px rgba(0,0,0,.25), 0 0 0 2px rgba(91,140,255,.12); background: rgba(255,255,255,.06); }
.vdiv { width: 1px; height: 22px; background: rgba(255,255,255,.06); margin: 0 2px; }
.btn { background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.08); color: var(--text-dim);
  padding: 7px 13px; border-radius: 8px; cursor: pointer; font-size: 12px; font-family: inherit;
  transition: .18s; white-space: nowrap; display: inline-flex; align-items: center; gap: 5px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04); }
.btn:hover { border-color: rgba(255,255,255,.16); background: rgba(255,255,255,.08); color: var(--text); }
.btn:active { background: rgba(255,255,255,.03); transform: translateY(.5px); }
.btn.primary { background: linear-gradient(135deg, var(--accent-hi), #6d6bff); border-color: transparent; color: #fff;
  font-weight: 600; box-shadow: 0 2px 12px rgba(91,140,255,.35), inset 0 1px 0 rgba(255,255,255,.2); }
.btn.primary:hover { box-shadow: 0 4px 18px rgba(91,140,255,.5), inset 0 1px 0 rgba(255,255,255,.2); color: #fff; }
.btn.ghost { background: transparent; border-color: transparent; box-shadow: none; }
.btn.ghost:hover { background: rgba(255,255,255,.05); }
.spacer { flex: 1; }
.toggle { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--muted);
  cursor: pointer; user-select: none; padding: 0 4px; }
.toggle input { accent-color: var(--accent); cursor: pointer; width: 13px; height: 13px; }
#autosave-tag { font-size: 10px; font-weight: 600; letter-spacing: .5px; color: var(--ok); padding: 4px 10px; border-radius: 7px;
  background: rgba(61,220,132,.1); border: 1px solid rgba(61,220,132,.2); white-space: nowrap; }
#autosave-tag.hidden { display: none; }
#autosave-tag.dirty { background: rgba(255,178,77,.1); border-color: rgba(255,178,77,.2); color: var(--warn); }

#main { flex: 1; display: flex; min-height: 0; }

/* ── 资产库面板 ── */
#assets { width: 210px; flex: none; background: var(--panel); border-right: 1px solid rgba(255,255,255,.04);
  display: flex; flex-direction: column; transition: width .2s, opacity .2s; overflow: hidden; min-height: 0; }
#assets.collapsed { width: 0; opacity: 0; border-right: none; }
.assets-head { padding: 12px 14px 10px; flex: none; display: flex; align-items: center; justify-content: space-between;
  font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 1.5px;
  border-bottom: 1px solid rgba(255,255,255,.04); }
#assets-list { flex: 1; min-height: 0; overflow-y: auto; overflow-x: hidden; padding: 10px;
  display: flex; flex-direction: column; gap: 8px; }
.assets-empty { padding: 28px 16px; text-align: center; color: rgba(140,155,185,.45); font-size: 11px; line-height: 1.8; flex: none; }
.assets-tip { padding: 10px 14px; font-size: 10px; color: var(--faint); line-height: 1.7; border-top: 1px solid rgba(255,255,255,.04); flex: none; }
.asset-card { flex: none; background: rgba(255,255,255,.02); border: 1px solid rgba(255,255,255,.05);
  border-radius: 10px; overflow: hidden; cursor: grab; transition: .2s; position: relative; }
.asset-card:hover { border-color: rgba(91,140,255,.25); box-shadow: 0 4px 12px rgba(0,0,0,.3); transform: translateY(-1px); }
.asset-card.missing { border-color: rgba(255,91,110,.5); opacity: .6; }
.asset-card.missing .asset-name { color: var(--danger); }
.asset-thumb { width: 100%; height: 82px; flex: none; background: #0a0c10 center/contain no-repeat; display: flex;
  align-items: center; justify-content: center; color: rgba(255,255,255,.15); font-size: 22px; }
.asset-name { padding: 5px 9px; font-size: 11px; color: rgba(200,210,230,.7); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; background: rgba(255,255,255,.02); }
.asset-del { position: absolute; top: 4px; right: 4px; width: 18px; height: 18px; border-radius: 7px;
  background: rgba(0,0,0,.65); color: #ff8e9b; border: none; cursor: pointer; font-size: 12px; line-height: 1;
  display: none; backdrop-filter: blur(4px); }
.asset-card:hover .asset-del { display: block; }
#assets-toggle { position: absolute; left: 210px; top: 50%; transform: translateY(-50%); z-index: 8;
  width: 16px; height: 40px; background: var(--panel); border: 1px solid rgba(255,255,255,.06); border-left: none;
  border-radius: 0 7px 7px 0; color: var(--muted); cursor: pointer; transition: left .2s; font-size: 12px;
  display: flex; align-items: center; justify-content: center; }
#assets-toggle.collapsed { left: 0; }
/* 素材缩略图播放角标 */
.asset-thumb { position: relative; cursor: pointer; }
.asset-play { position: absolute; inset: 0; display: none; align-items: center; justify-content: center;
  font-size: 22px; color: #fff; background: rgba(0,0,0,.4); backdrop-filter: blur(2px); }
.asset-card:hover .asset-play { display: flex; }

/* 资产选择浮层 */
#asset-picker { position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 500;
  display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); }
#asset-picker.hidden { display: none; }
.ap-box { width: min(680px, 86vw); max-height: 78vh; background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; display: flex; flex-direction: column; box-shadow: 0 20px 60px rgba(0,0,0,.6); overflow: hidden; }
.ap-head { padding: 16px 18px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line); font-weight: 600; }
.ap-head > div { display: flex; gap: 8px; }
#ap-grid { padding: 16px; overflow-y: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap: 12px; }
.ap-empty { padding: 50px; text-align: center; color: var(--muted); }
.ap-item { background: var(--panel2); border: 1.5px solid var(--line); border-radius: 10px; overflow: hidden;
  cursor: pointer; transition: .15s; }
.ap-item:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.4); }
.ap-item .apt { width: 100%; height: 80px; background: #0c0e13 center/contain no-repeat; }
.ap-item .apn { padding: 7px 9px; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 素材缩略图上的播放角标 */
.asset-thumb { position: relative; cursor: pointer; }
.asset-play { position: absolute; inset: 0; display: none; align-items: center; justify-content: center;
  font-size: 26px; color: #fff; background: rgba(0,0,0,.35); text-shadow: 0 1px 4px rgba(0,0,0,.6); }
.asset-card:hover .asset-play { display: flex; }

/* 素材视频预览浮层 */
#video-preview { position: fixed; inset: 0; background: rgba(0,0,0,.8); z-index: 600;
  display: flex; align-items: center; justify-content: center; backdrop-filter: blur(6px); }
#video-preview.hidden { display: none; }
.vp-box { width: min(880px, 90vw); background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.6); }
.vp-head { padding: 12px 16px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line); font-size: 13px; }
.vp-head .vp-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 12px; }
.vp-box video { display: block; width: 100%; max-height: 70vh; background: #000; }
.vp-box img { display: block; width: 100%; max-height: 70vh; object-fit: contain; background: #000; }

/* 成片预览浮层（全屏 iframe） */
#preview-stage { position: fixed; inset: 0; background: #000; z-index: 700; display: flex; flex-direction: column; }
#preview-stage.hidden { display: none; }
.pv-bar { height: 44px; flex: 0 0 44px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 14px; background: var(--panel); border-bottom: 1px solid var(--line); font-size: 13px; }
.pv-bar .pv-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 12px; opacity: .85; }
#preview-stage iframe { flex: 1 1 auto; width: 100%; border: 0; background: #000; }

/* 时间线模式 */
#timeline-wrap { display: none; flex-direction: column; flex: 1; min-width: 0; background: var(--bg); }
#tl-bar { display: flex; align-items: center; gap: 8px; padding: 6px 14px;
  background: linear-gradient(180deg, rgba(22,25,35,.95), rgba(18,21,30,.98));
  border-bottom: 1px solid rgba(255,255,255,.04); flex-shrink: 0; height: 44px; }
#tl-bar select { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.07); color: var(--text);
  padding: 6px 8px; border-radius: 7px; font-size: 12px; max-width: 180px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.25); transition: .2s; }
#tl-bar select:focus { outline: none; border-color: rgba(91,140,255,.4); box-shadow: inset 0 1px 3px rgba(0,0,0,.25), 0 0 0 2px rgba(91,140,255,.12); }
#tl-bar select option { background: #161922; color: var(--text); padding: 6px 8px; }
#tl-time { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 200px; text-align: center;
  letter-spacing: .5px; }
#tl-video-wrap { flex: 1; display: flex; align-items: center; justify-content: center; background: #080a0e; min-height: 0; overflow: hidden; position: relative; }
#tl-video-wrap video { width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
#tl-overlay { position: absolute; left: 0; top: 0; width: 100%; height: 100%; pointer-events: none; z-index: 5; container-type: inline-size; }
.tl-choice-chip { position: absolute; transform: translate(-50%,-50%); box-sizing: border-box; pointer-events: auto;
  display: flex; align-items: center; justify-content: center; text-align: center;
  background: linear-gradient(180deg, rgba(34,40,56,.92), rgba(20,24,34,.95));
  border: 1.5px solid rgba(91,140,255,.7); border-radius: 0.73cqw; color: #fff;
  padding: 0.885cqw 1.667cqw; font-size: 0.99cqw; letter-spacing: 0; cursor: move; user-select: none;
  white-space: nowrap; box-shadow: 0 6px 20px rgba(0,0,0,.5); overflow: hidden; }
.tl-choice-chip:hover { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(91,140,255,.4), 0 6px 20px rgba(0,0,0,.5); }
.tl-choice-chip.dragging { opacity: .85; border-color: #fff; }
.tl-choice-chip.no-target { border-color: rgba(255,91,110,.55); border-style: dashed; opacity: .7; }
.tl-prompt-chip { position: absolute; transform: translate(-50%,-50%); box-sizing: border-box; pointer-events: auto;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, rgba(34,40,56,.85), rgba(20,24,34,.9));
  border: 1px solid rgba(255,255,255,.22); border-radius: 0.73cqw; color: rgba(255,255,255,.95);
  padding: 0.83cqw 1.46cqw; font-size: 0.94cqw; cursor: move; user-select: none; text-align: center;
  line-height: 1.7; box-shadow: 0 6px 24px rgba(0,0,0,.45); overflow: hidden; }
.tl-prompt-chip:hover { border-color: var(--accent); }
.tl-prompt-chip.dragging { opacity: .85; border-color: #fff; }
.tl-cd-chip { position: absolute; transform: translate(-50%,-50%); box-sizing: border-box; pointer-events: auto;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(90deg, rgba(91,140,255,.4), rgba(176,107,255,.4));
  border: 1.5px solid rgba(91,140,255,.7); border-radius: 8px; color: rgba(255,255,255,.9);
  padding: 4px 14px; font-size: 0.73cqw; cursor: move; user-select: none; text-align: center;
  letter-spacing: 0; box-shadow: 0 3px 12px rgba(0,0,0,.35); overflow: hidden;
  min-height: 0.5cqw; }
.tl-cd-chip:hover { border-color: var(--accent); }
.tl-cd-chip.dragging { opacity: .85; border-color: #fff; }
.tl-resize-handle { position: absolute; width: 12px; height: 12px;
  background: var(--accent); border: 2px solid #fff; border-radius: 3px; pointer-events: auto; z-index: 2; }
.tl-resize-nw { left: -6px; top: -6px; cursor: nwse-resize; }
.tl-resize-ne { right: -6px; top: -6px; cursor: nesw-resize; }
.tl-resize-sw { left: -6px; bottom: -6px; cursor: nesw-resize; }
.tl-resize-se { right: -6px; bottom: -6px; cursor: nwse-resize; }
.tl-ix-tab { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); color: var(--text);
  padding: 4px 9px; border-radius: 7px; cursor: pointer; font-size: 12px; }
.tl-ix-tab:hover { border-color: var(--accent); }
.tl-ix-tab.active { background: var(--accent); border-color: transparent; color: #fff; }
.tl-ix-tab.add { color: var(--accent); font-weight: 600; }

/* ── 属性面板（「调色台」风格）── */
.tl-insp {
  --sec-bg: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.018));
  --sec-border: rgba(255,255,255,.06);
  --ctrl-bg: rgba(0,0,0,.22);
  --ctrl-border: rgba(255,255,255,.08);
  --ctrl-focus: rgba(91,140,255,.45);
  --ctrl-glow: 0 0 0 2px rgba(91,140,255,.14);
  --label-c: rgba(150,162,190,.7);
  --unit-c: rgba(140,155,185,.4);
  font-size: 13px;
}

.tl-insp-node { font-size: 15px; font-weight: 650; padding: 2px 0 14px; border-bottom: 1px solid rgba(255,255,255,.06); margin-bottom: 14px; display: flex; align-items: baseline; gap: 8px; letter-spacing: .2px; }
.tl-insp-node .tl-insp-sub { color: var(--faint); font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 1px; margin-left: auto; padding: 2px 8px; background: rgba(255,255,255,.04); border-radius: 5px; }

.tl-sec { background: var(--sec-bg); border: 1px solid var(--sec-border); border-radius: 12px; padding: 13px 14px; margin-bottom: 10px; box-shadow: var(--sh-sm); }
.tl-sec-h { font-size: 10px; font-weight: 700; color: var(--label-c); margin-bottom: 11px; letter-spacing: 1.2px; text-transform: uppercase; display: flex; align-items: center; gap: 7px; }
.tl-sec-h::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 6px rgba(91,140,255,.5); flex-shrink: 0; }

.tl-adv-toggle { font-size: 13px; }
.tl-adv-toggle:hover { opacity: .85; }

.tl-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.tl-row:last-child { margin-bottom: 0; }
.tl-lbl { font-size: 11px; color: var(--label-c); width: 56px; flex-shrink: 0; letter-spacing: .3px; }

.tl-inp, .tl-num, .tl-sel, .tl-ta {
  background: var(--ctrl-bg); border: 1px solid var(--ctrl-border); color: var(--text);
  padding: 7px 9px; border-radius: 8px; font-size: 13px; font-family: inherit;
  box-shadow: var(--sh-inset); transition: border-color .18s, box-shadow .18s, background .18s; }
.tl-num { -moz-appearance: textfield; cursor: ew-resize; user-select: none; }
.tl-num::-webkit-inner-spin-button, .tl-num::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.tl-num.dragging-num { border-color: var(--ctrl-focus); box-shadow: var(--sh-inset), var(--ctrl-glow); }
.tl-inp:hover, .tl-num:hover, .tl-sel:hover, .tl-ta:hover { border-color: rgba(255,255,255,.14); }
.tl-inp:focus, .tl-num:focus, .tl-sel:focus, .tl-ta:focus {
  outline: none; border-color: var(--ctrl-focus); box-shadow: var(--sh-inset), var(--ctrl-glow); background: rgba(0,0,0,.3); }
.tl-inp { flex: 1; min-width: 0; }
.tl-num { width: 64px; text-align: center; font-weight: 600; }
.tl-sel { flex: 1; min-width: 0; cursor: pointer; }
.tl-ta { width: 100%; box-sizing: border-box; resize: vertical; line-height: 1.6; }

.tl-check { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--text-dim); cursor: pointer; margin-bottom: 7px; }
.tl-check:last-child { margin-bottom: 0; }
.tl-check input[type="checkbox"] { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }
.tl-inline { display: inline-flex; margin-left: auto; margin-bottom: 0; }

.tl-unit { font-size: 10px; color: var(--unit-c); }
.tl-readonly { font-size: 13px; color: var(--accent2); font-weight: 600; letter-spacing: .3px; }
.tl-hint { font-size: 10.5px; color: var(--faint); line-height: 1.6; margin-top: 7px; }

/* 导出设置面板 */
.exp-form { display: flex; flex-direction: column; gap: 4px; }
.exp-form label { font-size: 11px; font-weight: 600; color: var(--label-c); margin-top: 10px; letter-spacing: .3px; }
.exp-inp { width: 100%; background: rgba(0,0,0,.18); border: 1px solid rgba(255,255,255,.08); color: var(--text); border-radius: 8px; padding: 8px 10px; font-size: 12.5px; outline: none; transition: border-color .15s; }
.exp-inp:focus { border-color: rgba(91,140,255,.45); }
.exp-inp[readonly] { color: var(--muted); cursor: default; }
.exp-row { display: flex; gap: 8px; align-items: center; }
.exp-row .exp-inp { flex: 1; }
.exp-adv { margin-top: 12px; }
.exp-adv summary { font-size: 11px; color: var(--muted); cursor: pointer; user-select: none; padding: 4px 0; }
.exp-hint { font-size: 10.5px; color: var(--faint); line-height: 1.6; margin-top: 12px; min-height: 16px; }
.exp-actions { margin-top: 16px; }
html[data-theme="light"] .exp-inp { background: rgba(0,0,0,.04); border-color: rgba(0,0,0,.1); }

.tl-choice-card { background: rgba(0,0,0,.16); border: 1px solid rgba(255,255,255,.045); border-radius: 9px; padding: 11px; margin-bottom: 8px; transition: border-color .18s; }
.tl-choice-card:hover { border-color: rgba(91,140,255,.18); }
.tl-choice-card.off { opacity: .4; }

.tl-x { background: transparent; border: none; color: var(--faint); cursor: pointer; font-size: 15px; line-height: 1; padding: 3px 7px; border-radius: 7px; flex-shrink: 0; transition: .15s; }
.tl-x:hover { color: var(--danger); background: rgba(255,91,110,.12); }

.tl-add-btn { width: 100%; background: transparent; border: 1px dashed rgba(255,255,255,.12); color: var(--accent); padding: 9px; border-radius: 9px; cursor: pointer; font-size: 12px; font-weight: 500; transition: .2s; }
.tl-add-btn:hover { border-color: var(--accent); background: rgba(91,140,255,.06); border-style: solid; }

/* ── 时间线特有 ── */
.tl-badge { background: linear-gradient(135deg, var(--accent), #6d6bff); color: #fff; border-radius: 6px; padding: 1px 7px; font-size: 10px; font-weight: 600; margin-left: 4px; }
.tl-help { background: rgba(91,140,255,.04); border: 1px solid rgba(255,255,255,.05); border-radius: 8px; padding: 10px 12px; font-size: 11px; color: var(--muted); line-height: 1.8; }

.tl-choice-chip .chip-idx { display: inline-flex; align-items: center; justify-content: center;
  width: 1.25cqw; height: 1.25cqw; margin-right: 0.63cqw; border-radius: 0.36cqw; background: rgba(255,255,255,.15);
  font-size: 0.73cqw; vertical-align: middle; }
#tl-video-wrap .tl-empty { color: var(--muted); font-size: 14px; text-align: center; padding: 40px; }
#tl-track-wrap { flex-shrink: 0; height: 120px; background: var(--panel); border-top: 1px solid rgba(255,255,255,.04);
  position: relative; }
#tl-track { display: block; width: 100%; height: 100%; cursor: pointer; }
.timeline-mode #canvas-wrap { display: none !important; }
.timeline-mode #timeline-wrap { display: flex !important; }
.timeline-mode #assets { width: 0 !important; opacity: 0 !important; overflow: hidden; }
.timeline-mode #assets-toggle { display: none !important; }
.tl-btn { background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.08); color: var(--text-dim);
  padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 12px; font-family: inherit; transition: .18s;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04); }
.tl-btn:hover { border-color: rgba(91,140,255,.35); background: rgba(91,140,255,.1); color: var(--text); }
.tl-btn:active { transform: translateY(.5px); }
.tl-btn:disabled { opacity: .45; cursor: default; }
.tl-btn.primary { background: linear-gradient(135deg, var(--accent-hi), #6d6bff); border-color: transparent; color: #fff;
  box-shadow: 0 2px 10px rgba(91,140,255,.3), inset 0 1px 0 rgba(255,255,255,.2); }

/* ── 画布与节点卡片 ── */
#canvas-wrap { flex: 1; position: relative; overflow: hidden; cursor: grab;
  background-color: #0b0d11;
  background-image: radial-gradient(circle, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 24px 24px; }
#canvas-wrap::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, rgba(91,140,255,.04), transparent 55%); }
#canvas-wrap.panning { cursor: grabbing; }
#canvas { position: absolute; left: 0; top: 0; transform-origin: 0 0; }
#edges { position: absolute; left: 0; top: 0; overflow: visible; pointer-events: none; z-index: 1; transform-origin: 0 0; }
.node {
  position: absolute; width: 190px;
  background: linear-gradient(180deg, rgba(35,40,56,.95), rgba(28,32,48,.9));
  border: 1px solid rgba(255,255,255,.05); border-radius: 10px; padding: 0; z-index: 2;
  box-shadow: 0 4px 16px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.04);
  user-select: none; transition: box-shadow .2s, border-color .2s, transform .15s; }
.node:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.06); }
.node.selected { border-color: rgba(91,140,255,.6);
  box-shadow: 0 0 0 2px rgba(91,140,255,.25), 0 8px 24px rgba(0,0,0,.5), inset 0 1px 0 rgba(91,140,255,.1); }
.node.start { border-color: rgba(61,220,132,.5); }
.node.start::before { content: "起点"; position: absolute; top: -9px; left: 10px; font-size: 10px; font-weight: 600;
  background: rgba(61,220,132,.2); color: var(--ok); padding: 1px 8px; border-radius: 5px;
  letter-spacing: 1px; border: 1px solid rgba(61,220,132,.3); }
.node .nhead { padding: 8px 10px; cursor: move; display: flex; align-items: center; gap: 5px;
  border-bottom: 1px solid rgba(255,255,255,.04); }
.node .nhead .badge { font-size: 10px; padding: 1px 6px; border-radius: 5px;
  background: rgba(255,255,255,.06); color: var(--muted); white-space: nowrap; border: 1px solid rgba(255,255,255,.05); }
.node .nhead .badge.start { background: rgba(61,220,132,.15); color: var(--ok); border-color: rgba(61,220,132,.2); }
.node .nhead .badge.timed { background: rgba(176,107,255,.15); color: #c89bff; border-color: rgba(176,107,255,.2); }
.node .nhead .badge.end { background: rgba(255,91,110,.12); color: #ff8e9b; border-color: rgba(255,91,110,.15); }
.node .nhead .badge.cond { background: rgba(255,183,77,.15); color: #ffb74d; border-color: rgba(255,183,77,.2); }
.node .nname { font-weight: 600; font-size: 12px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node .nvideo { padding: 6px 10px; font-size: 11px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node .nvideo.missing { color: #ff8e9b; }
.node .nvideo .ndur { color: rgba(255,255,255,.3); font-size: 10px; }
.node .nthumb { height: 72px; margin: 0; background: #080a0e center/contain no-repeat;
  border-bottom: 1px solid rgba(255,255,255,.04); }
.node .nchoices { padding: 2px 0 7px; }
.node .nchoice { position: relative; padding: 4px 12px; font-size: 12px; color: #c4ccde; display: flex; align-items: center; }
.node .nchoice .ctext { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node .nadd { color: var(--muted); font-size: 11px; cursor: pointer; border-top: 1px dashed rgba(255,255,255,.06);
  margin-top: 2px; padding-top: 6px; justify-content: center; transition: .15s; border-radius: 0 0 12px 12px; }
.node .nadd:hover { color: var(--accent); background: rgba(91,140,255,.06); }
.node .port { position: absolute; right: -7px; width: 13px; height: 13px; border-radius: 50%;
  background: var(--accent); border: 2px solid #1a1e2c; cursor: crosshair; z-index: 3;
  transition: transform .15s, box-shadow .15s; }
.node .port:hover { transform: scale(1.35); background: #fff; box-shadow: 0 0 0 4px rgba(91,140,255,.25); }
.node .port.default { background: var(--accent2); }
.node .port.default:hover { box-shadow: 0 0 0 4px rgba(176,107,255,.25); }
.node .port.in { left: -7px; right: auto; top: 50%; transform: translateY(-50%); background: var(--accent); opacity: .45; cursor: default; }
.node .port.in:hover { transform: translateY(-50%) scale(1.2); opacity: .7; }

/* 右键菜单 */
.ctx-menu { position: fixed; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); border-radius: 8px;
  padding: 4px 0; z-index: 900; box-shadow: 0 8px 24px rgba(0,0,0,.5); min-width: 160px; backdrop-filter: blur(12px); }
.ctx-item { padding: 8px 16px; font-size: 13px; cursor: pointer; color: var(--text); transition: .1s; }
.ctx-item:hover { background: rgba(91,140,255,.15); }

/* 小地图 */
#minimap { position: absolute; right: 12px; bottom: 36px; width: 180px; height: 120px;
  background: rgba(14,16,20,.85); border: 1px solid rgba(255,255,255,.06); border-radius: 8px; z-index: 6;
  pointer-events: auto; cursor: pointer; }

/* 框选矩形 */
.selection-rect { position: absolute; border: 1.5px dashed var(--accent); background: rgba(91,140,255,.1);
  z-index: 10; pointer-events: none; display: none; }

/* 注释框 */
.annotation { position: absolute; border: 2px dashed rgba(91,140,255,.4); border-radius: 10px;
  background: rgba(91,140,255,.06); color: var(--muted); font-size: 12px; padding: 8px 12px;
  min-width: 120px; min-height: 50px; cursor: move; user-select: none; z-index: 0; }
.annotation:focus { outline: none; border-color: var(--accent); }
.ann-text { width: 100%; min-height: 100%; outline: none; }
.ann-del { position: absolute; top: 2px; right: 6px; cursor: pointer; color: #ff8e9b; font-size: 14px;
  opacity: 0; transition: .15s; }
.annotation:hover .ann-del { opacity: 1; }

/* 统计面板 */
#stats-panel { border-top: 1px solid rgba(255,255,255,.05); padding: 10px 16px; font-size: 11px; color: var(--muted);
  background: rgba(255,255,255,.02); cursor: pointer; }
#stats-panel .stats-title { font-weight: 700; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
#stats-panel .stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; }
#stats-panel .stats-grid .warn { color: var(--warn); }

/* 帮助弹窗 */
.help-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 800;
  display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); }
.help-overlay.hidden { display: none; }
/* AI 弹窗 / 通用表单字段 */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; background: rgba(0,0,0,.3); border: 1px solid rgba(255,255,255,.1); color: var(--text);
  padding: 9px 11px; border-radius: 8px; font-size: 13px; font-family: inherit; transition: .2s;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.2); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: rgba(91,140,255,.5); box-shadow: 0 0 0 2px rgba(91,140,255,.12); }
.field textarea { resize: vertical; line-height: 1.6; }

/* 项目列表 */
.proj-item { background: rgba(255,255,255,.025); border: 1px solid rgba(255,255,255,.05); border-radius: 10px;
  padding: 12px 16px; cursor: pointer; transition: .2s; display: flex; align-items: center; gap: 12px; }
.proj-item:hover { border-color: var(--accent); background: rgba(91,140,255,.08); }
.proj-item .proj-name { flex: 1; font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.proj-item .proj-meta { font-size: 11px; color: var(--muted); white-space: nowrap; }
.proj-item .proj-del { width: 24px; height: 24px; border-radius: 7px; border: none; background: transparent;
  color: #ff8e9b; cursor: pointer; font-size: 14px; opacity: 0; transition: .15s; }
.proj-item:hover .proj-del { opacity: 1; }
.proj-item .proj-del:hover { background: rgba(255,91,110,.15); }
.proj-item.current { border-color: var(--ok); }
.proj-empty { text-align: center; color: var(--muted); padding: 40px; font-size: 13px; }

/* 属性面板 */
#inspector { width: 320px; flex: none; background: var(--panel); border-left: 1px solid rgba(255,255,255,.04);
  overflow-y: auto; padding: 16px 16px 24px; }
#inspector .empty { color: var(--muted); text-align: center; margin-top: 60px; line-height: 1.9; font-size: 13px; }
#inspector .empty .big { font-size: 34px; display: block; margin-bottom: 12px; opacity: .5; }

/* 连线 */
.edge-path { fill: none; stroke: url(#edgeGrad); stroke-width: 2.5; transition: stroke-width .18s, opacity .18s, filter .18s; }
.edge-path.default { stroke: var(--accent2); stroke-dasharray: 7 5; stroke-width: 2; }
.edge-path.highlight { stroke-width: 3.5; filter: drop-shadow(0 0 4px rgba(91,140,255,.6)); opacity: 1; }
.edge-path.highlight.default { stroke-width: 3; filter: drop-shadow(0 0 4px rgba(176,107,255,.6)); }
.edge-path.dim { opacity: .2; }
.edge-temp { fill: none; stroke: #fff; stroke-width: 2.5; stroke-dasharray: 6 4; opacity: .85; }
.edge-hit { fill: none; stroke: transparent; stroke-width: 16; pointer-events: stroke; cursor: pointer; }
.edge-hit:hover + .edge-path { stroke: var(--danger); }

#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(8px);
  background: rgba(38,44,59,.96); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.06);
  padding: 12px 20px; border-radius: 8px; font-size: 13px; opacity: 0; transition: .25s;
  pointer-events: none; z-index: 999; max-width: 70%; box-shadow: 0 8px 30px rgba(0,0,0,.5); }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.err { border-color: var(--danger); color: #ffd0d6; }
#help { position: absolute; left: 16px; bottom: 14px; font-size: 11px; color: var(--muted); line-height: 1.8;
  pointer-events: none; z-index: 5; background: rgba(14,16,20,.7); padding: 8px 12px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,.06); backdrop-filter: blur(6px); }
#help b { color: #aeb6c8; font-weight: 600; }
/* 缩放指示 */
#zoom-tag { position: absolute; right: 16px; bottom: 14px; font-size: 11px; color: var(--muted);
  background: rgba(14,16,20,.7); padding: 4px 12px; border-radius: 8px; border: 1px solid rgba(255,255,255,.06);
  z-index: 5; backdrop-filter: blur(6px); }