/* ナビゲーション */
nav {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 0 1.5rem;
}

.nav-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.nav-logo {
    font-size: 1.1rem;
    font-weight: bold;
    color: #222;
    text-decoration: none;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
}

nav ul li a {
    color: #444;
    text-decoration: none;
    font-size: 0.95rem;
}

nav ul li a:hover {
    color: #000;
}
/* ハッシュコード */
.hash-code {
    font-size: 0.75rem;
    color: #888;
    font-family: monospace;
    word-break: break-all;
    margin: 0.5rem 0;
}
/* 標本の行列 */
.specimen-matrix {
    font-size: 0.9rem;
    transform: scale(0.9);
    transform-origin: left;
}
/* 標本画像サイズ */
.franklin-content img {
    width: 100%;
    max-width: 800px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
}
/* 数式番号を非表示 */
.katex-display::after {
    display: none;
}