.email-item {
    transition: all 0.2s ease;
}

.email-item:hover {
    background-color: #f0f9ff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.email-item.selected {
    background-color: #dbeafe;
    border-left: 4px solid var(--primary-color);
}

.folder-item {
    transition: all 0.2s ease;
}

.folder-item:hover {
    background-color: #f3f4f6;
}

.folder-item.active {
    background-color: var(--primary-color);
    color: white;
}

.ai-suggestion-panel {
    background: var(--gradient-primary);
    color: white;
}

.compliance-indicator {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.compliance-safe { background-color: #10b981; }
.compliance-warning { background-color: #f59e0b; }
.compliance-danger { background-color: #ef4444; }

.email-content {
    max-height: 400px;
    overflow-y: auto;
}

.email-content::-webkit-scrollbar {
    width: 6px;
}

.email-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.email-content::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.compose-editor {
    min-height: 200px;
    resize: vertical;
}

/* 左侧邮箱列表收缩/展开样式 */
.sidebar-resizer {
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 4px;
    cursor: col-resize;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.sidebar-container:hover .sidebar-resizer {
    opacity: 1;
}

.sidebar-resizer:hover {
    width: 12px;
    background: var(--primary-dark);
}

.sidebar-resizer i {
    color: white;
    font-size: 10px;
}

.sidebar-container {
    position: relative;
    transition: width 0.3s ease;
    flex-shrink: 0;
}

.sidebar-collapsed {
    width: 60px !important;
}

.sidebar-collapsed .folder-text,
.sidebar-collapsed .folder-badge,
.sidebar-collapsed .folder-dot,
.sidebar-collapsed .sidebar-section-title {
    display: none;
}

.sidebar-collapsed .folder-item {
    justify-content: center;
    padding: 12px;
}

.sidebar-collapsed .folder-item i {
    margin-right: 0;
    font-size: 18px;
}

/* 二期功能蒙版样式 */
.phase2-mask {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(1px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    border-radius: inherit;
    pointer-events: none;
}

.phase2-mask-content {
    background: #f3f4f6;
    color: #6b7280;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 400;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 6px;
    pointer-events: auto;
}

.phase2-mask-content i {
    font-size: 12px;
}

/* 建议操作面板蒙版 */
.suggestion-panel-mask {
    position: relative;
}

.suggestion-panel-mask::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(1px);
    z-index: 50;
    border-radius: 0.5rem;
    pointer-events: none;
}

.suggestion-panel-mask::after {
    content: '🔒 AI建议操作为二期功能';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #f3f4f6;
    color: #6b7280;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 400;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 51;
    white-space: nowrap;
}

/* 响应式自动收缩 - 仅在未手动展开时生效 */
@media (max-width: 1200px) {
    .sidebar-container:not(.sidebar-expanded) {
        width: 60px;
    }
    
    .sidebar-container:not(.sidebar-expanded) .folder-text,
    .sidebar-container:not(.sidebar-expanded) .folder-badge,
    .sidebar-container:not(.sidebar-expanded) .folder-dot,
    .sidebar-container:not(.sidebar-expanded) .sidebar-section-title {
        display: none;
    }
    
    .sidebar-container:not(.sidebar-expanded) .folder-item {
        justify-content: center;
        padding: 12px;
    }
    
    .sidebar-container:not(.sidebar-expanded) .folder-item i {
        margin-right: 0;
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .sidebar-container {
        position: fixed;
        left: 0;
        top: 73px;
        bottom: 0;
        z-index: 40;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar-container.mobile-open {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 35;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
}