/* 认证页面通用样式 */
:root {
    --primary-color: #4361ee;
    --error-color: #ef233c;
    --text-color: #2b2d42;
    --light-gray: #f8f9fa;
    --border-color: #dee2e6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
    padding: 40px;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h1 {
    font-size: 28px;
    margin: 0 0 10px;
    color: var(--primary-color);
}

.auth-header p {
    color: #6c757d;
    margin: 0;
}

.auth-form {
    margin-top: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.captcha-group {
    display: flex;
    gap: 10px;
}

.captcha-group input {
    flex: 1;
}

.captcha-img {
    height: 46px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: opacity 0.3s;
}

.captcha-img:hover {
    opacity: 0.8;
}

.btn-primary {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #3a56d4;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    color: #6c757d;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.alert {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-error {
    background-color: #fff5f5;
    color: var(--error-color);
    border: 1px solid #ffd6d6;
}

.text-muted {
    color: #6c757d;
    font-size: 14px;
}

.captcha-group {
    display: flex;
    gap: 10px;
}

.captcha-group input {
    flex: 1;
}

.captcha-img {
    height: 46px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: opacity 0.3s;
}

.captcha-img:hover {
    opacity: 0.8;
}




@media (max-width: 576px) {
    .auth-card {
        padding: 30px 20px;
    }
}