body{
    overflow: hidden;
}
.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    text-align: center;
    margin-top: 5rem;
    height: calc(100vh - 10rem);
}

.language-title {
    font-size: 2.5rem;
     /* font-weight: 600; */
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.language-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    max-width: 15rem;
}

.language-btn {
    padding: 0.5rem ;
    border: 1px solid #000000;
    background-color: transparent;
    color: #000000;
    font-size: 1rem;
    /* font-weight: 500; */
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease; /* Safari 兼容性 */
    margin-top: 2rem;
}

.language-btn:hover {
    background-color: #000000;
    color: #ffffff;
}

.language-btn.active {
    background-color: #000000;
    color: #ffffff;
}
 /* 响应式调整 */
 @media (max-width: 768px) {
    .language-title {
        font-size: 2rem;
    }
    
    /* footer {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    } */
    
    .copyright {
        margin-right: 0;
    }
}

@media (max-width: 480px) {
    .language-title {
        font-size: 1.75rem;
        margin-bottom: 30px;
    }
    
    .language-btn {
        padding: 14px 16px;
        font-size: 0.9375rem;
    }
}
.footer{
    margin-top: 0px;
}
.default-language-control {
    text-align: center;
}

.default-language-btn {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    margin: 0 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.default-language-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}