/* 验证遮罩层样式 */
.verification-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.verification-card {
    background: white;
    width: 90%;
    max-width: 450px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: slideUp 0.5s ease-out;
    display: flex;
    flex-direction: column;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.verification-header {
    background: #f8f9fa;
    padding: 25px 30px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.verification-header h2 {
    color: #2d3748;
    margin: 0;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* 隐藏初始的副标题，只在需要时显示 */
.verification-subtitle {
    display: none;
    color: #e53e3e;
    font-weight: 500;
    font-size: 1rem;
    margin-top: 8px;
}

.verification-body {
    padding: 30px;
}

.verification-desc {
    color: #4a5568;
    margin-bottom: 25px;
    text-align: center;
    font-size: 1.05rem;
    line-height: 1.5;
}

.verification-form .form-group {
    margin-bottom: 20px;
}

.verification-form label {
    display: block;
    margin-bottom: 8px;
    color: #4a5568;
    font-weight: 600;
    font-size: 0.95rem;
}

.verification-form .form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
    outline: none;
    background: #f7fafc;
}

.verification-form .form-control:focus {
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-verify {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
    letter-spacing: 1px;
}

.btn-verify:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(118, 75, 162, 0.4);
}

.btn-verify:active {
    transform: translateY(0);
}

.verify-error {
    margin-top: 15px;
    color: #e53e3e;
    text-align: center;
    font-size: 0.95rem;
    min-height: 24px;
    font-weight: 500;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}