/* ===== 语言切换器样式 ===== */

#language-switcher {
    position: relative;
    display: inline-block;
    margin-left: 16px;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 10px;
    color: #e2e8f0;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    backdrop-filter: blur(8px);
}

.lang-btn:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(139, 92, 246, 0.2) 100%);
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.lang-icon {
    font-size: 1.1rem;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 14px;
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        0 0 30px rgba(99, 102, 241, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.95);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    overflow: hidden;
    backdrop-filter: blur(20px);
    padding: 6px;
}

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

/* 下拉框顶部装饰线 */
.lang-dropdown::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #6366f1, #8b5cf6, #6366f1, transparent);
    border-radius: 2px;
}

.lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: #94a3b8;
    font-size: 0.95rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    border-radius: 10px;
    margin: 2px 0;
}

.lang-option:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.1) 100%);
    color: #e2e8f0;
    transform: translateX(4px);
}

.lang-option.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(139, 92, 246, 0.15) 100%);
    color: #c7d2fe;
    box-shadow: 
        0 0 0 1px rgba(99, 102, 241, 0.3) inset,
        0 2px 8px rgba(99, 102, 241, 0.15);
}

.lang-option.active::after {
    content: '✓';
    color: #818cf8;
    font-size: 0.9rem;
    font-weight: 700;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .lang-btn {
        padding: 6px 10px;
    }
    
    .lang-current {
        display: none;
    }
    
    .lang-dropdown {
        right: -10px;
        min-width: 140px;
    }
}