/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 禁止圖片相關操作 */
img {
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

body {
    background-color: #ffffff;
    color: #5a5a5a;
    line-height: 1.6;
}

/* Header styles */
.header {
    background-color: #ffffff;
    text-align: center;
    box-shadow: 0 2px 15px rgba(139, 107, 79, 0.1);
    position: relative;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    width: 200px;
    height: 200px;
    object-fit: contain;
}

/* Navigation */
.nav {
    background-color: #ffffff;
    padding: 1rem;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(139, 107, 79, 0.1);
}

.nav-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    margin: 0.5rem;
    border-radius: 25px;
    text-decoration: none;
    color: #8b6b4f;
    background-color: #f1e1b0;
    transition: all 0.3s ease;
}

.nav-button:hover {
    background-color: #8b6b4f;
    color: white;
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        height: 180px;
    }

    .logo {
        width: 120px;
        height: 120px;
    }

    .nav-button {
        display: block;
        margin: 0.5rem auto;
        width: 80%;
    }
}