.canvas-reference-strip {
    flex: 0 0 auto;
    width: 100%;
    max-width: 100%;
    min-height: 66px;
    align-items: flex-start;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: #a8a29e transparent;
    overscroll-behavior: contain;
}
.canvas-reference-item {
    position: relative;
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
}
.canvas-reference-thumb {
    width: 48px;
    height: 48px;
    transition: border-color 120ms, opacity 120ms;
    touch-action: pan-x;
}
.canvas-reference-remove {
    position: absolute;
    top: -2px;
    right: -2px;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    padding: 2px;
    border: 1px solid #d6d3d1;
    border-radius: 50%;
    background: #fff;
    color: #be123c;
    opacity: 0;
    pointer-events: none;
}
.canvas-reference-item:hover .canvas-reference-remove,
.canvas-reference-item:focus-within .canvas-reference-remove {
    opacity: 1;
    pointer-events: auto;
}
.dark .canvas-reference-remove {
    background: #292524;
    border-color: #78716c;
    color: #fda4af;
}
@media (hover: none) {
    .canvas-reference-remove { opacity: 1; pointer-events: auto; }
}
.canvas-mention-menu {
    position: fixed;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    visibility: hidden;
    box-sizing: border-box;
    overflow: hidden;
    border: 1px solid #d6d3d1;
    border-radius: 8px;
    background: #fff;
    color: #44403c;
    box-shadow: 0 8px 24px #0002;
}
.canvas-mention-header {
    flex: 0 0 auto;
    padding: 8px 12px;
    border-bottom: 1px solid #e7e5e4;
    font-size: 11px;
    color: #78716c;
}
.canvas-mention-list {
    position: relative;
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}
.canvas-mention-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    min-height: 40px;
    padding: 6px 12px;
    text-align: left;
    font-size: 12px;
}
.canvas-mention-option[aria-selected="true"],
.canvas-mention-option:hover { background: #eff6ff; color: #1d4ed8; }
.dark .canvas-mention-menu { background: #292524; color: #e7e5e4; border-color: #57534e; }
.dark .canvas-mention-header { color: #a8a29e; border-color: #57534e; }
.dark .canvas-mention-option[aria-selected="true"],
.dark .canvas-mention-option:hover { background: #164e63; color: #cffafe; }

/* Keep the flow cue without blurring every moving dash three times per frame. */
.canvas-flow-line {
    filter: none;
    shape-rendering: auto;
    will-change: auto;
    animation: cfx 1.2s linear infinite;
}
.canvas-connection-static { filter: none !important; }
html[data-canvas-page-hidden="true"] .canvas-flow-line,
.canvas-flow-line[data-canvas-flow-visible="false"],
.laowu-canvas-viewport[data-canvas-interacting="true"] .canvas-flow-line {
    animation-play-state: paused;
}
@media (prefers-reduced-motion: reduce) {
    .canvas-flow-line { animation: none; }
}