/* 品类规划布局 */
.mmx-tool-panel {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    min-height: 0;
}

.mmx-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-muted, #f9fafb);
    flex-shrink: 0;
}

.mmx-toolbar-left { display: flex; align-items: center; gap: 8px; }

.mmx-title {
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
}

.mmx-title i { color: #10b981; }

.mmx-badge {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 10px;
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.mmx-toolbar-right { display: flex; align-items: center; gap: 6px; }

.mmx-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 10px;
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
}

.mmx-btn:hover { border-color: #10b981; color: #059669; }

.mmx-btn-primary {
    background: linear-gradient(135deg, #10b981, #059669);
    border-color: transparent;
    color: #fff !important;
}

.mmx-canvas-wrap {
    flex: 1;
    overflow: auto;
    padding: 16px;
    background-color: #f3f4f6;
    background-image: radial-gradient(circle, #d1d5db 1px, transparent 1px);
    background-size: 20px 20px;
    min-height: 480px;
}

.mmx-board {
    max-width: 1200px;
    margin: 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    padding: 24px 20px 20px;
    min-width: 720px;
}

.mmx-map-header { margin-bottom: 20px; text-align: center; }

.mmx-map-title {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    outline: none;
}

.mmx-map-subtitle {
    margin: 4px 0 0;
    font-size: 0.82rem;
    color: #6b7280;
    outline: none;
}

.mmx-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.mmx-col {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 360px;
    border-radius: 12px;
    padding: 16px 14px 36px;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.mmx-col-core { background: linear-gradient(180deg, #ecfdf5, #f0fdf4); border-top: 3px solid #10b981; }
.mmx-col-grow { background: linear-gradient(180deg, #eff6ff, #f0f9ff); border-top: 3px solid #3b82f6; }
.mmx-col-strategic { background: linear-gradient(180deg, #f5f3ff, #ede9fe); border-top: 3px solid #8b5cf6; }
.mmx-col-optimize { background: linear-gradient(180deg, #f8fafc, #f1f5f9); border-top: 3px solid #64748b; }

.mmx-col-head {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
}

.mmx-letter {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    flex-shrink: 0;
}

.mmx-letter-core { color: #059669; }
.mmx-letter-grow { color: #2563eb; }
.mmx-letter-strategic { color: #7c3aed; }
.mmx-letter-optimize { color: #475569; }

.mmx-col-name {
    margin: 0;
    font-size: 0.92rem;
    font-weight: 700;
    outline: none;
}

.mmx-col-desc {
    margin: 4px 0 0;
    font-size: 0.72rem;
    color: #6b7280;
    outline: none;
}

.mmx-notes {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.mmx-note {
    position: relative;
    padding: 8px 10px 8px 18px;
    font-size: 0.78rem;
    line-height: 1.5;
    background: rgba(255, 255, 255, 0.72);
    border-radius: 8px;
    outline: none;
    cursor: text;
}

.mmx-note::before {
    content: '•';
    position: absolute;
    left: 8px;
    top: 8px;
    font-weight: 700;
    color: #64748b;
}

.mmx-note:focus {
    background: #fff;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
}

.mmx-note-action { font-weight: 500; }

.mmx-btn-add-note {
    position: absolute;
    right: 10px;
    bottom: 10px;
    width: 26px;
    height: 26px;
    border: 1px dashed #cbd5e1;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    opacity: 0.55;
}

.mmx-col:hover .mmx-btn-add-note { opacity: 1; }

.mmx-footer-hint {
    padding: 8px 16px;
    font-size: 0.72rem;
    color: var(--text-muted, #6b7280);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 6px;
}

@media (max-width: 960px) {
    .mmx-columns { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .mmx-columns { grid-template-columns: 1fr; }
    .mmx-board { min-width: auto; }
}