body {
    margin: 0;
    font-family: "Noto Sans TC", sans-serif;
    background-color: #f0f8ff;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-align: center;
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

canvas {
    width: 100%;
    height: 400px;
}

/* 導覽列 header */
.header {
    max-width: 1000px;
    justify-self: center;
    background-color: white;
    padding: 16px 160px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* 導覽列 ul flex 排版 */
.header nav ul {
    list-style: none;
    display: flex;
    gap: 100px;
    margin: 0;
    padding: 0;
}

/* 導覽列連結外觀 */
.header nav ul li a {
    color: black;
    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    padding: 6px 12px;
    display: inline-block;
    border-radius: 5px;
}

/* 滑鼠移入連結變色 */
.header nav ul li a:hover {
    padding: 6px 12px;
    border-radius: 5px;
    background-color: rgb(88, 88, 88);
    color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* 當前選單項目樣式 */
.now {
    background-color: rgb(88, 88, 88);
    border-radius: 5px;
    display: inline-block;
    padding: 6px 12px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.now a {
    color: white !important;
    text-decoration: none;
}