/* 返回按钮：白底蓝字小胶囊，悬停变蓝渐变（全站共用） */
.custom-back-btn {
    background-color: #fff;
    color: #2b7de9;
    border: 1.5px solid #cfe0f7;
    padding: 7px 18px 7px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .25s ease;
    margin-right: 10px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    box-shadow: 0 2px 8px rgba(43, 125, 233, .14);
}

.custom-back-btn::before {
    content: '🏠';
    font-size: 13px;
    line-height: 1;
    background: #eef4ff;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.custom-back-btn:hover {
    background: linear-gradient(135deg, #2b7de9, #4aa0f5);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(43, 125, 233, .32);
    transform: translateY(-1px);
}

.custom-back-btn:hover::before {
    background: rgba(255, 255, 255, .25);
}

.custom-back-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(43, 125, 233, .25);
}

.custom-back-btn:focus {
    outline: none;
}

.custom-back-btn:last-child {
    margin-right: 0;
}