* {
    box-sizing: border-box;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999; 
    pointer-events: none; 
    background-image: 
        url('main.png'), 
        url('main.png'), 
        url('main.png'), 
        url('main.png');
    background-repeat: no-repeat;
    background-position: 
        left 20px top 20px, 
        right 20px top 20px, 
        left 20px bottom 20px, 
        right 20px bottom 20px;
    background-size: 50px auto; 
}

body {
    margin: 0;
    padding: 0;
    font-family: "PingFang TC", "Microsoft JhengHei", sans-serif;
    line-height: 1.8;
    color: #5d4037;
    background-color: #fffaf0; 
}

header {
    background-color: #e6beae;
    color: #fff;
    text-align: center;
    padding: 50px 20px 80px; 
    border-radius: 0 0 50% 50% / 0 0 15px 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1),
                inset 0 1px 3px rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: 1;
}

header h1 {
    font-size: 2.5rem;
    letter-spacing: 10px;
    margin-bottom: 8px;
    font-weight: 900;
    text-shadow: 
        1px 1px 0px rgba(0,0,0,0.1),
        2px 2px 3px rgba(0,0,0,0.15),
        0px 0px 10px rgba(255, 255, 255, 0.4);
}

header p {
    font-size: 1rem;
    opacity: 0.9;
    letter-spacing: 2px;
    font-weight: 300;
}

#my-logo {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: bold;
    border-radius: 50%; 
    background: linear-gradient(135deg, #ffccbc 0%, #e6beae 100%);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
}

nav ul {
    background: #bda393;
    padding: 10px 20px;
    margin: -35px auto 30px;
    list-style: none;
    text-align: center;
    max-width: 480px;
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 10;
}

nav ul li { 
    display: inline-block; 
    margin: 0 12px; 
}

nav a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease; 
    font-size: 0.95rem;
}

nav a:hover { 
    color: #ffe4e1;
    transform: translateY(-2px);
}

main {
    max-width: 720px; 
    margin: 0 auto 50px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(5px);
    padding: 40px;
    border-radius: 25px;
    box-shadow: 0 15px 40px rgba(141, 110, 99, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

h2 {
    color: #8d6e63;
    border-left: 6px solid #ffccbc;
    padding-left: 15px;
    margin-bottom: 25px;
    font-size: 1.5rem;
}

h2::before {
    content: "✨ ";
}

.highlight-text {
    color: #d87070;
    background-color: #fff0f0;
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: bold;
}

.profile-img {
    border-radius: 15px;
    display: block;
    margin: 25px auto;
    max-width: 100%;
    height: auto;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 6px solid #fff;
}

footer {
    text-align: center;
    padding: 40px 20px;
    color: #a1887f;
    font-size: 0.85rem;
}