/* 认证页面样式（登录/注册） */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    display: flex;
    max-width: 900px;
    width: 100%;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.auth-card {
    flex: 1;
    padding: 40px;
}

.auth-side {
    flex: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

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

.auth-header .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    color: #667eea;
    text-decoration: none;
    margin-bottom: 20px;
}

.auth-header .logo i {
    font-size: 32px;
}

.auth-header h1 {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
}

.auth-header p {
    color: #666;
}

.alert {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

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

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.form-group label i {
    color: #667eea;
}

.required {
    color: #dc2626;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.password-input {
    position: relative;
}

.password-input input {
    padding-right: 50px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 5px;
}

.toggle-password:hover {
    color: #667eea;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: #667eea;
}

.forgot-link {
    font-size: 14px;
    color: #667eea;
    text-decoration: none;
}

.forgot-link:hover {
    text-decoration: underline;
}

.btn-auth {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-auth:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.auth-footer {
    text-align: center;
    margin-bottom: 20px;
}

.auth-footer p {
    color: #666;
    font-size: 14px;
}

.auth-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-divider {
    text-align: center;
    margin: 20px 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background: #e5e7eb;
}

.auth-divider span {
    background: #fff;
    padding: 0 15px;
    color: #9ca3af;
    font-size: 14px;
    position: relative;
}

.social-login {
    display: flex;
    gap: 10px;
}

.btn-social {
    flex: 1;
    padding: 12px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    background: #fff;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-social:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-wechat {
    color: #07c160;
}

.btn-wechat:hover:not(:disabled) {
    background: #07c160;
    color: #fff;
    border-color: #07c160;
}

.btn-qq {
    color: #12b7f5;
}

.btn-qq:hover:not(:disabled) {
    background: #12b7f5;
    color: #fff;
    border-color: #12b7f5;
}

/* 侧边内容 */
.side-content h2 {
    font-size: 28px;
    margin-bottom: 15px;
}

.side-content > p {
    opacity: 0.9;
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    font-size: 15px;
}

.features-list li i {
    font-size: 20px;
    width: 30px;
}

.features-list li strong {
    display: block;
    font-size: 16px;
}

.features-list li span {
    opacity: 0.8;
    font-size: 14px;
}

/* 响应式 */
@media (max-width: 768px) {
    .auth-container {
        flex-direction: column;
    }
    
    .auth-side {
        display: none;
    }
    
    .auth-card {
        padding: 30px 20px;
    }
}