/* 优化语言切换器样式，使其与下方登录框宽度对齐 */
.login-lang-switcher {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding: 4px;
    border: 1px solid #d6e0ea;
    border-radius: 10px;
    background: #f5f7fb;
    margin-bottom: 20px;
    /* 与登录框输入部分大致对齐 */
    width: 100%;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

.login-lang-option {
    display: block;
    flex: 1;
    margin: 0;
    cursor: pointer;
}

.login-lang-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.login-lang-option span {
    display: block;
    padding: 10px 12px;
    border-radius: 8px;
    background: #eef2f7;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s ease;
}

.login-lang-option input[type="radio"]:checked + span {
    background: #ffffff;
    color: #1d4ed8;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}