body {
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f0f8ff; /* 연한 하늘색 배경 */
    color: #333;
    text-align: center;
    flex-direction: column;
    gap: 20px;
}
.container {
    background-color: #ffffff;
    padding: 40px 60px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    animation: fadeIn 1s ease-out;
}
h1 {
    color: #2e8b57; /* 바다 녹색 */
    font-size: 2.8em;
    margin-bottom: 15px;
    letter-spacing: 1px;
}
p {
    font-size: 1.2em;
    color: #666;
    line-height: 1.6;
}
.icon {
    font-size: 3em;
    color: #ffcc00; /* 밝은 노란색 */
    margin-bottom: 15px;
    display: block; /* 아이콘 중앙 정렬을 위해 */
}

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

/* 반응형 디자인 */
@media (max-width: 768px) {
    .container {
        padding: 30px 40px;
        margin: 20px;
    }
    h1 {
        font-size: 2em;
    }
    p {
        font-size: 1em;
    }
}