/* 语言切换器样式 */
.language-switcher {
    position: relative;
    display: inline-block;
    margin-left: 20px;
}

.language-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #ffffff;
    padding: 8px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    min-width: 120px;
    justify-content: space-between;
}

.language-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.language-btn i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.language-btn:hover i:last-child {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 4px;
    min-width: 120px;
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: block;
    padding: 12px 16px;
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffd700;
    padding-left: 20px;
}

.language-option.active {
    background: rgba(255, 215, 0, 0.2);
    color: #ffd700;
    font-weight: 600;
}

.language-option.active::before {
    content: '✓';
    position: absolute;
    left: 8px;
    color: #ffd700;
    font-weight: bold;
}

/* 手机版响应式样式 */
@media (max-width: 768px) {
    .language-switcher {
        margin-left: 10px;
        margin-right: 10px;
    }
    
    .language-btn {
        padding: 6px 12px;
        font-size: 13px;
        min-width: 100px;
    }
    
    .language-btn span {
        display: none;
    }
    
    .language-btn i:first-child {
        font-size: 16px;
    }
    
    .language-dropdown {
        min-width: 100px;
        right: 0;
        left: auto;
    }
    
    .language-option {
        padding: 10px 12px;
        font-size: 13px;
    }
}

@media (max-width: 576px) {
    .language-switcher {
        margin-left: 5px;
        margin-right: 5px;
    }
    
    .language-btn {
        padding: 5px 10px;
        font-size: 12px;
        min-width: 80px;
    }
    
    .language-btn i:first-child {
        font-size: 14px;
    }
    
    .language-dropdown {
        min-width: 80px;
    }
    
    .language-option {
        padding: 8px 10px;
        font-size: 12px;
    }
}

/* 导航栏中的语言切换器样式 */
.navbar .language-switcher {
    margin-left: auto;
    margin-right: 0;
}

.navbar .language-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar .language-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 手机版导航栏中的语言切换器 */
.navbar .language-switcher.d-lg-none {
    position: absolute;
    top: 50%;
    right: 0; /* 为汉堡菜单留出空间 */
    transform: translateY(-50%);
    z-index: 1050;
    margin: 0;
}

/* 确保手机版语言切换器在导航栏中可见 */
@media (max-width: 991.98px) {
    .navbar .language-switcher.d-lg-none {
        display: block !important;
        position: absolute;
        top: 50%;
        right: 0;
        transform: translateY(-50%);
        z-index: 1050;
    }
    
    .navbar .language-switcher.d-lg-none .language-btn {
        background: rgba(255, 255, 255, 0.15);
        border: 1px solid rgba(255, 255, 255, 0.3);
        padding: 8px 12px;
        min-width: 80px;
    }
    
    .navbar .language-switcher.d-lg-none .language-btn span {
        display: none;
    }
    
    .navbar .language-switcher.d-lg-none .language-dropdown {
        right: 0;
        left: auto;
        min-width: 120px;
    }
}

/* 深色主题下的样式调整 */
.dark-section .language-btn {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.dark-section .language-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.dark-section .language-dropdown {
    background: rgba(15, 23, 42, 0.95);
    border-color: rgba(255, 255, 255, 0.2);
}

/* 动画效果 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.language-dropdown.show {
    animation: fadeInDown 0.3s ease;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .language-btn {
        border-width: 2px;
        border-color: #ffffff;
    }
    
    .language-dropdown {
        border-width: 2px;
        border-color: #ffffff;
    }
    
    .language-option {
        border-bottom-width: 2px;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    .language-btn,
    .language-dropdown,
    .language-option {
        transition: none;
    }
    
    .language-btn i {
        transition: none;
    }
    
    .language-dropdown.show {
        animation: none;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .language-btn {
        padding: 10px 16px;
        min-height: 44px; /* 确保触摸目标足够大 */
    }
    
    .language-option {
        padding: 14px 16px;
        min-height: 44px;
    }
    
    .language-option:hover {
        background: rgba(255, 255, 255, 0.1);
        padding-left: 16px;
    }
}