:root {
    --primary-gradient: linear-gradient(45deg, #2b5876, #4e4376);
    --secondary-gradient: linear-gradient(135deg, #667eea, #764ba2);
    --dark-bg: #1a1a1a;
    --darker-bg: #141414;
    --card-bg: #202020;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* 登录页面样式 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: rgba(32, 32, 32, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.text-gradient {
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 500;
}

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

.login-form .input-group {
    background: var(--darker-bg);
    border-radius: 8px;
    overflow: hidden;
}

.login-form .input-group-text {
    background: transparent;
    border: none;
    color: var(--text-secondary);
}

.login-form .form-control {
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 12px;
}

.login-form .form-control:focus {
    box-shadow: none;
    background: rgba(255, 255, 255, 0.05);
}

.btn-primary {
    background: var(--secondary-gradient);
    border: none;
    padding: 12px;
    border-radius: 8px;
    width: 100%;
    font-weight: 500;
    margin-top: 10px;
}

.login-links {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.login-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
}

.login-links a:hover {
    color: var(--text-primary);
}

/* 响应式调整 */
@media (max-width: 576px) {
    .login-container {
        padding: 15px;
    }
    
    .login-box {
        padding: 20px;
    }
}