/* 统一登录门户样式 */
:root {
    --primary-color: #0057b8;
    --secondary-color: #5ac8fa;
    --success-color: #34c759;
    --danger-color: #ff3b30;
    --background-color: #f2f2f7;
    --card-color: #ffffff;
    --text-color: #1c1c1e;
    --text-secondary: #6b6b70;
    --border-color: #e5e5ea;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.login-page {
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    width: 100%;
    max-width: 380px;
    margin: 0 auto;
    padding: 20px;
}

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

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 8px 0;
}

.login-header .subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

.login-form-container {
    background-color: var(--card-color);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-group.remember-me {
    display: flex;
    align-items: center;
}

.form-group.remember-me label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
}

.form-group.remember-me input {
    width: auto;
    margin-right: 8px;
}

.btn-login {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 14px;
    width: 100%;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-login:hover {
    background-color: #00468f;
}

.error-message {
    color: var(--danger-color);
    font-size: 14px;
    margin-bottom: 15px;
    padding: 8px 12px;
    background-color: rgba(255, 59, 48, 0.1);
    border-radius: 6px;
    display: none;
}

.error-message.show {
    display: block;
}

.login-footer {
    margin-top: 30px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.login-footer p {
    margin-bottom: 8px;
}

.login-footer .beian-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.login-footer .beian-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* 登录状态动画 */
.btn-login.loading {
    position: relative;
    color: transparent;
}

.btn-login.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式调整 */
@media (max-height: 600px) {
    .login-container {
        padding: 10px;
    }
    
    .login-header {
        margin-bottom: 15px;
    }
    
    .login-form-container {
        padding: 15px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
}

/* 平板和桌面版 */
@media (min-width: 768px) {
    .login-container {
        max-width: 420px;
    }
    
    .login-header h1 {
        font-size: 28px;
    }
    
    .login-form-container {
        padding: 30px;
    }
}