/* 固定悬浮按钮 */
.fixed-button {
    position: fixed;
    color: white;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 100;
    border: none;
    outline: none;
}
.fixed-button-p1 {
    background-color: #039163;
    bottom: 10.5rem;
    right: 3rem;
    width: 4.5rem;
    height: 4.5rem;
}
.fixed-button-p2 {
    background-color: #3b82f6;
    bottom: 4.5rem;
    right: 3rem;
    width: 4.5rem;
    height: 4.5rem;
}
.fixed-button:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.fixed-button:focus {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.5);
}