/* 演奏年鑑 各年度ナビ */
.content-with-yearnav {
  display: flex;
  gap: 25px;
  align-items: flex-start;
}

.content-with-yearnav > .concert-blk-under {
  flex: 1;
  min-width: 0;
}

.year-nav-side {
  width: 240px;
  flex-shrink: 0;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  overflow: hidden;
  position: sticky;
  top: 20px;
  order: 2;
}

.year-nav-side .year-nav-header {
  background: #000;
  color: #fff;
  padding: 12px 15px;
  font-size: 1rem;
  font-weight: bold;
  text-align: center;
}

.year-nav-side ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.year-nav-side ul li a {
  display: block;
  padding: 10px 15px;
  text-decoration: none;
  font-size: 0.9375rem;
  color: #010101;
  border-bottom: 1px solid #eee;
  transition: background 0.2s;
}

.year-nav-side ul li a:hover {
  background: #fce4ec;
  color: #fa2a78;
}

.year-nav-side ul li a.current,
.year-nav-side ul li span.current {
  display: block;
  padding: 10px 15px;
  font-size: 0.9375rem;
  background: #fa2a78;
  color: #fff;
  font-weight: bold;
  border-bottom: 1px solid #eee;
  cursor: default;
}

@media screen and (max-width: 767px) {
  .breadcrumb {
    margin-bottom: 20px;
  }

  .content-with-yearnav {
    flex-direction: column;
  }

  .year-nav-side {
    width: 100%;
    order: 1;
    position: static;
  }
}