.office-stage-shell {
    position: relative;
    min-height: 720px;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.98), rgba(226, 232, 240, 0.98));
}

.office-stage-shell::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at top left, rgba(245, 158, 11, 0.14), transparent 24%),
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.10), transparent 28%),
        repeating-linear-gradient(180deg, rgba(148, 163, 184, 0.05) 0 1px, transparent 1px 6px);
    z-index: 1;
    opacity: .74;
}

#office-stage-canvas {
    position: relative;
    z-index: 2;
}

.stage-card::after {
    content: '';
    position: absolute;
    inset: auto 24px 24px auto;
    width: 160px;
    height: 160px;
    pointer-events: none;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.18), transparent 68%);
    filter: blur(24px);
    opacity: .46;
}

.office-stage-shell.stage-blocked {
    border-color: rgba(251, 113, 133, 0.3);
}

.stage-simple-live-note {
    display: none;
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 14px;
    border: 1px dashed rgba(148, 163, 184, 0.3);
    background: rgba(255, 255, 255, 0.82);
    color: rgba(15, 23, 42, 0.76);
    font-size: 13px;
    line-height: 1.7;
}

.stage-card[data-view-mode="simple"] .stage-simple-live-note {
    display: block;
}

.stage-card[data-view-mode="simple"] .office-stage-shell {
    display: block;
    min-height: 320px;
    margin-top: 14px;
    border-radius: 20px;
}

.stage-card[data-view-mode="simple"] .office-stage-shell::after {
    content: attr(data-moment-label);
    position: absolute;
    left: 16px;
    top: 14px;
    z-index: 3;
    min-height: 20px;
    padding: 5px 10px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.3);
    background: rgba(255, 255, 255, 0.88);
    color: rgba(15, 23, 42, 0.82);
    font-size: 12px;
    line-height: 1.2;
    letter-spacing: 0.02em;
    pointer-events: none;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 160ms ease, transform 160ms ease;
}

.stage-card[data-view-mode="simple"] .office-stage-shell[data-moment-label]:not([data-moment-label=""])::after {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1279px) {
    .office-stage-shell { min-height: 620px; }
    .stage-card[data-view-mode="simple"] .office-stage-shell { min-height: 280px; }
}

@media (max-width: 860px) {
    .office-stage-shell { min-height: 420px; }
    .stage-card[data-view-mode="simple"] .office-stage-shell {
        min-height: 228px;
        margin-top: 12px;
    }
    .stage-card[data-view-mode="simple"] .office-stage-shell::after {
        left: 12px;
        top: 10px;
    }
}