.yammane  { color: #4c402f; background-color: #f0e0c0; font-family: serif }
.tactr    { text-align: center }
.tblctr   { margin: auto }
.fs270    { font-size: 270% }

/* ボタン統一スタイル - Yammaneテーマに合わせた配色 */
.btn-yammane {
    background: linear-gradient(135deg, #8b7355, #6b5b47);
    color: white;
    border: 2px solid #5a4a37;
    padding: 0;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 6px 4px;
    transition: all 0.3s ease;
    min-width: 160px;
    height: 50px;
    box-shadow: 0 4px 8px rgba(75, 64, 47, 0.3);
    font-family: serif;
}

.btn-yammane:hover {
    background: linear-gradient(135deg, #9d8466, #7d6d58);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(75, 64, 47, 0.4);
    border-color: #4a3a27;
}

.btn-yammane:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(75, 64, 47, 0.3);
}

/* 大きなボタン（メインアクション用） */
.btn-yammane-large {
    padding: 18px 36px;
    font-size: 18px;
    min-width: 180px;
    font-weight: bold;
}

/* 小さなボタン（サブアクション用） */
.btn-yammane-small {
    padding: 10px 20px;
    font-size: 14px;
    min-width: 100px;
}

/* 既存のinputボタンスタイルを統一 */
input[type="button"], input[type="submit"], input[type="reset"] {
    background: linear-gradient(135deg, #8b7355, #6b5b47);
    color: white;
    border: 2px solid #5a4a37;
    padding: 0;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    margin: 6px 4px;
    transition: all 0.3s ease;
    min-width: 160px;
    box-shadow: 0 4px 8px rgba(75, 64, 47, 0.3);
    font-family: serif;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 50px;
}

input[type="button"]:hover, input[type="submit"]:hover, input[type="reset"]:hover {
    background: linear-gradient(135deg, #9d8466, #7d6d58);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(75, 64, 47, 0.4);
    border-color: #4a3a27;
}

input[type="button"]:active, input[type="submit"]:active, input[type="reset"]:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(75, 64, 47, 0.3);
}