/* 常用工具 */
.study-tools-card {
    width: 330px;
    flex-shrink: 0;
    background-color: #fff;
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
}

.study-tools-card {
        width: 100%;
        padding: 16px;
}

.study-tools-card .card-title {
    margin: 0 0 32px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: #222;
    margin: 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 12px;
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: #393F4A;
    font-size: 15px;
    padding: 8px 4px;
    border-radius: 6px;
    transition: all 0.2s;
    cursor: pointer;
}

.tool-item:hover {
    background-color: #f5f8ff;
    color: #2a7de1;
}

.tool-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}

.tool-name {
    text-align: center;
}

.app-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px;
    background-color: #f5f5f5;
    border-radius: 4px;
    font-size: 12px;
    color: #666;
    text-decoration: none;
}

.app-download:hover {
    background-color: #e8f0fe;
    color: #2a7de1;
}

.app-icon {
    font-size: 14px;
}