.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, var(--primary-color), var(--background-color));
    position: relative;
    overflow: hidden;
}

.login-box {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    animation: fadeIn 0.8s ease-out;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.form-group input:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.3);
}

.login-button {
    width: 100%;
    padding: 0.8rem;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.login-button:hover {
    transform: translateY(-2px);
}

.floating-stars {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 添加星星动画效果 */
.floating-stars::before,
.floating-stars::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: white;
    border-radius: 50%;
    animation: floatStar 3s infinite linear;
}

@keyframes floatStar {
    0% {
        transform: translateY(0) scale(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(-20px) scale(1);
        opacity: 0;
    }
}