/* 左：サイドバー */
.column-sidebar {
    flex: 0 0 280px;
}

.sidebar-block {
    margin-bottom: 50px;
}

.sidebar-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: #888;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    letter-spacing: 0.05em;
}

.sidebar-list {
    list-style: none;
}

.sidebar-list li {
    border-bottom: 1px solid #f9f9f9;
}

.sidebar-list a {
    display: block;
    padding: 12px 15px;
    font-size: 0.95rem;
    color: #555 !important;
    position: relative;
    transition: all 0.3s;
}

.sidebar-list a:hover {
    background-color: #fcfcfc;
    color: #064e3b !important;
    padding-left: 20px;
}

/* 現在のページ */
.sidebar-list a.is-active {
    background-color: #f4f7f6;
    color: #064e3b !important;
    font-weight: 700;
}