.rokuyo-nav{margin-top:2.5rem;padding:24px;background:#fafafa;border:1px solid #e8e8e8;border-radius:8px;max-width:800px;grid-column:1 / -1}.optional-calendar-wrap .rokuyo-nav{max-width:none}.rokuyo-nav h2{font-size:1.1rem;font-weight:bold;color:#333;margin:0 0 16px;padding-bottom:10px;border-bottom:2px solid #333;letter-spacing:0.08em}.rokuyo-nav-group+.rokuyo-nav-group{margin-top:14px;padding-top:14px;border-top:1px solid #e0e0e0}.rokuyo-nav-label{display:block;font-size:0.8rem;color:#888;margin-bottom:8px;letter-spacing:0.04em}.rokuyo-nav-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(6, 1fr);gap:6px}.rokuyo-nav-item{display:flex;align-items:center;justify-content:center;padding:8px 4px;border-radius:6px;font-size:0.95rem;font-weight:500;text-decoration:none;text-align:center;transition:background-color 0.15s, box-shadow 0.15s;border:1px solid transparent;background:#fff;color:#444;border-color:#ddd}.rokuyo-nav-item:hover{box-shadow:0 1px 4px rgba(0,0,0,0.1)}.rokuyo-nav-item[data-rokuyo="taian"]{border-left:3px solid #e05090}.rokuyo-nav-item[data-rokuyo="taian"]:hover{background:#fff5f9}.rokuyo-nav-item[data-rokuyo="tomobiki"]{border-left:3px solid #4a90d9}.rokuyo-nav-item[data-rokuyo="tomobiki"]:hover{background:#f0f6fd}.rokuyo-nav-item[data-rokuyo="sensho"]{border-left:3px solid #d4a017}.rokuyo-nav-item[data-rokuyo="sensho"]:hover{background:#fdf8ec}.rokuyo-nav-item[data-rokuyo="senbu"]{border-left:3px solid #5ba55b}.rokuyo-nav-item[data-rokuyo="senbu"]:hover{background:#f2f9f2}.rokuyo-nav-item[data-rokuyo="butsumetsu"]{border-left:3px solid #7b7b7b}.rokuyo-nav-item[data-rokuyo="butsumetsu"]:hover{background:#f5f5f5}.rokuyo-nav-item[data-rokuyo="shakko"]{border-left:3px solid #c0392b}.rokuyo-nav-item[data-rokuyo="shakko"]:hover{background:#fdf2f1}.rokuyo-nav-item.is-current{background:#333;color:#fff;border-color:#333;cursor:default;font-weight:bold}.rokuyo-nav-item.is-current[data-rokuyo="taian"]{border-right:3px solid #e05090;border-left-color:#333}.rokuyo-nav-item.is-current[data-rokuyo="tomobiki"]{border-right:3px solid #4a90d9;border-left-color:#333}.rokuyo-nav-item.is-current[data-rokuyo="sensho"]{border-right:3px solid #d4a017;border-left-color:#333}.rokuyo-nav-item.is-current[data-rokuyo="senbu"]{border-right:3px solid #5ba55b;border-left-color:#333}.rokuyo-nav-item.is-current[data-rokuyo="butsumetsu"]{border-right:3px solid #7b7b7b;border-left-color:#333}.rokuyo-nav-item.is-current[data-rokuyo="shakko"]{border-right:3px solid #c0392b;border-left-color:#333}@media screen and (max-width: 600px){.rokuyo-nav{padding:16px 12px}.rokuyo-nav h2{font-size:1rem}.rokuyo-nav-list{grid-template-columns:repeat(3, 1fr);gap:6px}.rokuyo-nav-item{font-size:0.9rem;padding:8px 2px}}