@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&family=Noto+Serif+TC:wght@600;700&display=swap');

/* Reset & Base */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1,
h2,
h3 {
    font-family: var(--font-serif);
    color: var(--primary-color);
    margin-top: 0;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

img {
    max-width: 100%;
    display: block;
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

main {
    flex: 1;
}

/* Navigation */
.nav-links {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-links>li {
    position: relative;
}

.nav-links a {
    font-weight: bold;
    padding: 10px 0;
    display: block;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Dropdown */
.dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    min-width: 150px;
    list-style: none;
    padding: 10px 0;
    z-index: 1000;
}

.nav-links li:hover .dropdown {
    display: block;
}

.dropdown li {
    padding: 0;
}

.dropdown a {
    padding: 10px 20px;
    font-weight: normal;
    color: var(--text-color);
    white-space: nowrap;
}

.dropdown a:hover {
    background: #f9f9f9;
    color: var(--primary-color);
}