body {
    background-color: #121212;
    background-image: radial-gradient(#2c2c2c 1px, transparent 1px);
    background-size: 20px 20px;
    font-family: "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #f8f1e5;
}

.nav-container {
    background: #f8f1e5;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)),
        url('https://www.transparenttextures.com/patterns/parchment.png');
    width: 100%;
    max-width: 480px;
    padding: 50px 30px;
    border-radius: 4px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.8);
    border: 1px solid #d4c4a8;
    text-align: center;
    position: relative;
}

.nav-container::before {
    content: "";
    position: absolute;
    top: 10px; left: 10px; right: 10px; bottom: 10px;
    border: 2px solid #b8860b;
    opacity: 0.3;
    pointer-events: none;
}

h1 {
    color: #4a3728;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 14px;
    color: #8c7a6b;
    margin-bottom: 40px;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.nav-item {
    background: #5d4037;
    color: #f8f1e5;
    text-decoration: none;
    padding: 20px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-item:hover {
    background: #3e2723;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.nav-item span {
    font-size: 12px;
    font-weight: normal;
    opacity: 0.8;
}