/* 导航栏样式修改 */
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
}

nav {
    flex: 1;
    margin: 0 20px;
}

nav ul {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 0;
    padding: 0;
    list-style: none;
}

nav ul li a {
    display: flex;
    align-items: center;
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 4px;
    transition: var(--transition);
}

nav ul li a:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--primary-color);
}

nav ul li a i {
    margin-right: 5px;
}

.user-actions {
    display: flex;
    gap: 10px;
}

.btn-login, .btn-register {
    padding: 8px 15px;
    border-radius: 4px;
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.btn-login {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-register {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-login:hover, .btn-register:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-login i, .btn-register i {
    margin-right: 5px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    header .container {
        flex-wrap: wrap;
    }
    
    nav {
        order: 3;
        width: 100%;
        margin: 15px 0 0;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .user-actions {
        margin-left: auto;
    }
}

@media (max-width: 576px) {
    .user-actions {
        width: 100%;
        justify-content: center;
        margin-top: 15px;
        order: 4;
    }
    
    .btn-login, .btn-register {
        flex: 1;
        justify-content: center;
    }
}