body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.form-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 3rem;
    margin: 2rem auto;
    max-width: 600px;
    overflow: visible !important;
}

.brand-header {
    text-align: center;
    margin-bottom: 2rem;
}

.brand-title {
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}
/* Hide validation icons */
.form-control:valid,
.form-select:valid {
    background-image: none !important;
}

.form-floating {
    margin-bottom: 1.5rem;
}

    .form-floating > .form-control,
    .form-floating > .form-select {
        border: 2px solid #e9ecef;
        border-radius: 12px;
        transition: all 0.3s ease;
        background: rgba(255, 255, 255, 0.8);
    }

        .form-floating > .form-control:focus,
        .form-floating > .form-select:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
        }

    .form-floating > label {
        color: #6c757d;
        font-weight: 500;
    }

.input-group-text {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    color: white;
    border-radius: 12px 0 0 12px;
}

.btn-submit {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 12px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

    .btn-submit:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    }

.privacy-notice {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: #495057;
}

    .privacy-notice i {
        color: #667eea;
        margin-right: 0.5rem;
    }




/* 进阶版本：添加一些优化样式 */
.grecaptcha-badge {
    left: 50% !important;
    right: 50% !important;
    transform:translate(-50%,-50%) !important;
    bottom: -120px !important;
    opacity: 0.9 !important;
    transition: opacity 0.3s ease !important;
}

    .grecaptcha-badge:hover {
        opacity: 1 !important;
    }



@media (max-width: 768px) {
    .form-container {
        margin: 1rem;
        padding: 2rem 1.5rem;
    }

    .brand-title {
        font-size: 2.5rem;
    }
}