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

body {
    font-family: sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    display: flex;
    flex-direction: column;
    width: 33vw;
    max-width: 800px;
    height: 44vh;
    max-height: 600px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

header {
    margin-bottom: 40px;
    flex: 0 0 auto;
}

h1 {
    font-size: 3em;
    color: #4a4a4a;
    margin-bottom: 10px;
}

main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.subtitle {
    font-size: 1.2em;
    color: #666;
}

footer {
    border-top: 1px solid #ddd;
    padding-top: 20px;
    font-size: 0.9em;
    color: #666;
    flex: 0 0 auto;
}

footer p {
    margin-bottom: 5px;
}

.beian {
    text-align: center;
    font-size: 0.8em;
    color: #777;
}

.beian a {
    color: #777;
    text-decoration: none;
    margin: 0 5px;
}

.beian img {
    vertical-align: middle;
    margin: 0 5px;
}

/* Responsive design */
@media (max-width: 600px) {
    h1 {
        font-size: 2em;
    }

    .coming-soon h2 {
        font-size: 2em;
    }
}