.task-card {
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid #e5e7eb;
}

.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.status-badge {
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.status-badge i {
    font-size: 0.875rem;
}

.status-pending {
    background-color: #fef3c7;
    color: #92400e;
}

.status-processing {
    background-color: #dbeafe;
    color: #1e40af;
}

.status-processing i {
    animation: spin 1s linear infinite;
}

.status-completed {
    background-color: #d1fae5;
    color: #065f46;
}

.status-failed {
    background-color: #fee2e2;
    color: #991b1b;
}

.status-all {
    background-color: #f3f4f6;
    color: #4b5563;
}

.type-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.type-contract {
    background-color: #fef3c7;
    color: #92400e;
}

.type-evaluation {
    background-color: #e0e7ff;
    color: #3730a3;
}

.type-chat {
    background-color: #d1fae5;
    color: #059669;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.filter-btn i {
    font-size: 0.875rem;
}

.filter-btn.active {
    background-color: #3b82f6;
    color: white;
}

.filter-btn:not(.active) {
    background-color: white;
    color: #4b5563;
    border-color: #e5e7eb;
}

/* 图标颜色由 JavaScript 动态设置 */
.filter-btn:not(.active) i {
    color: inherit;
}

/* 处理中状态强制使用橙色 */
.filter-btn[data-status="processing"] i,
.filter-btn-vertical[data-status="processing"] i {
    color: #F97316 !important;
}

.filter-btn:not(.active):hover {
    background-color: #f3f4f6;
}

/* [新增] 垂直布局筛选按钮 - 图标在上，文字在下 */
.filter-btn-vertical {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    min-width: 60px;
}

.filter-btn-vertical i {
    font-size: 14px;
}

.filter-btn-vertical span {
    font-size: 12px;
    line-height: 1.2;
}

.filter-btn-vertical.active {
    background-color: #3b82f6;
    color: white;
}

.filter-btn-vertical.active i {
    color: inherit;
}

.filter-btn-vertical:not(.active) {
    background-color: white;
    color: #4b5563;
    border-color: #e5e7eb;
}

.filter-btn-vertical:not(.active):hover {
    background-color: #f3f4f6;
}

.progress-bar {
    background-color: #e5e7eb;
    border-radius: 9999px;
    height: 0.5rem;
    overflow: hidden;
}

.progress-bar-fill {
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    height: 100%;
    border-radius: 9999px;
    transition: width 0.3s ease;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.loading-spinner {
    border: 3px solid #f3f4f6;
    border-top: 3px solid #3b82f6;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}