body {
    font-family: "微軟正黑體", Arial, sans-serif;
    color: #333333;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f0f8ff; 
    background-image: 
        url('img/top-left.png'),
        url('img/top-right.png'),
        url('img/bottom-left.png'),
        url('img/bottom-right.png'),
        url('img/bg-pattern.png'); 
    background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, repeat;
    background-position: top left, top right, bottom left, bottom right, center;
    background-attachment: fixed, fixed, fixed, fixed, fixed;
    background-size: 100px, 100px, 100px, 100px, auto;
}

#intro {
    border-bottom: 2px dashed #bdc3c7;
    margin-bottom: 20px;
    padding-bottom: 15px;
}

.highlight-text {
    color: #e74c3c;
    font-weight: bold;
    font-size: 1.1em;
}

a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #f1c40f;
    text-decoration: underline;
}

h2::before {
    content: "📌 ";
    font-size: 1.2em;
}

.logo {
    background-image: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    border-radius: 50%;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.4);
    width: 80px;
    height: 80px;
    line-height: 80px;
    margin: 0 auto 10px auto;
    font-size: 28px;
    font-weight: bold;
    color: #ffffff;
    border: 3px solid #ffffff;
}

h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin: 0;
}

h2 {
    color: #2c3e50;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

main {
    max-width: 800px;
    margin: 30px auto;
    padding: 30px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

header, footer {
    background-image: linear-gradient(to right, #2c3e50, #3498db);
    color: #ffffff;
    text-align: center;
    padding: 25px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.nav-menu {
    background-color: #34495e;
    padding: 12px 0;
    text-align: center;
}

.nav-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    display: inline-block;
    margin: 0 20px;
}

.nav-menu a {
    color: #ffffff;
    font-weight: bold;
}

.profile-img {
    border-radius: 50%;
    border: 4px solid #3498db;
    display: block;
    margin: 10px auto;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.skill-icon {
    vertical-align: middle;
}