/* ============================================================
   按钮板块 - 每行4个按钮（mokuai1 表）
   ============================================================ */

.btn-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);  /* 每行4列，平均分配宽度 */
    gap: 4px;
    padding: 4px 4px;
    max-width: 100%;
}

.btn-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 2px;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    text-align: center;
    text-decoration: none;
    color: #333;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    word-break: break-word;
}

.btn-item:hover {
    background: linear-gradient(145deg, #e8f0fe, #d2e3fc);
    border-color: #1a73e8;
    color: #1a73e8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.2);
}

.btn-item:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(26, 115, 232, 0.15);
}

.btn-empty {
    padding: 30px;
    text-align: center;
    color: #999;
    font-size: 14px;
}

/* 响应式：小屏幕每行2个 */
@media (max-width: 320px) {
    .btn-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
        padding: 4px 4px;
    }
    .btn-item {
        font-size: 11px;
        padding: 4px 2px;
    }
}