/* ==================== 侧边栏样式 ==================== */

.sidebar {
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 20px 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 进度步骤 */
.progress-steps {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-muted);
    transition: all 0.2s;
}

.step-item.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 600;
}

.step-item.completed {
    color: var(--success);
}

.step-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    border: 2px solid var(--border);
    flex-shrink: 0;
}

.step-item.active .step-dot {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

.step-item.completed .step-dot {
    border-color: var(--success);
    background: var(--success);
    color: white;
}

/* 专家卡片 */
.expert-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.expert-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    font-size: 13px;
    transition: all 0.2s;
}

.expert-card.speaking {
    border-color: var(--primary);
    background: var(--primary-light);
}

.expert-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.expert-card-info {
    flex: 1;
    min-width: 0;
}

.expert-card-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.expert-card-title {
    font-size: 11px;
    color: var(--text-muted);
}

/* Section title */
.sidebar-section-title {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 10px;
    margin-bottom: 4px;
}