/* ===========================================================
   競技から選ぶ（トップの入り口）2026-10-02
   5競技の大きなカード ＋ 製品ラインアップの競技切り替え
   =========================================================== */
.sport-gate {
  background: linear-gradient(180deg, #0b1630 0%, #0f1f45 100%);
  color: #e6edf9;
  padding: 56px 0 64px;
}
.sport-gate .section-title { color: #fff; }
.sport-gate .section-lead { color: #b9c7e4; }

.sg-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}
.sg-card {
  --c: #2563eb;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: #101c3c;
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
  display: flex;
  flex-direction: column;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.sg-card:hover {
  transform: translateY(-4px);
  border-color: var(--c);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .45), 0 0 0 1px var(--c), 0 0 24px color-mix(in srgb, var(--c) 55%, transparent);
}
.sg-photo {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.sg-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}
.sg-card:hover .sg-photo img { transform: scale(1.06); }
.sg-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 14, 34, 0) 35%, rgba(8, 14, 34, .92) 100%);
}
.sg-name {
  position: absolute;
  left: 14px;
  bottom: 10px;
  z-index: 1;
  margin: 0;
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .04em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, .6);
}
.sg-name small {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c);
  filter: brightness(1.5);
}
.sg-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.sg-copy {
  margin: 0;
  font-size: .86rem;
  line-height: 1.6;
  color: #c9d5ee;
  flex: 1;
}
.sg-count {
  display: inline-block;
  align-self: flex-start;
  font-size: .78rem;
  font-weight: 700;
  color: #fff;
  background: color-mix(in srgb, var(--c) 70%, #0b1630);
  border-radius: 999px;
  padding: 3px 10px;
}
.sg-btns {
  display: flex;
  gap: 8px;
}
.sg-btns a {
  flex: 1;
  text-align: center;
  font-size: .82rem;
  font-weight: 700;
  border-radius: 8px;
  padding: 8px 4px;
  text-decoration: none;
  transition: filter .15s ease, background .15s ease;
}
.sg-btn-main {
  color: #fff;
  background: linear-gradient(180deg, #2f8cff 0%, #1446c8 100%);
  border: 1px solid #38e1ff;
}
.sg-btn-main:hover { filter: brightness(1.15); }
.sg-btn-sub {
  color: #dbe6ff;
  border: 1px solid rgba(255, 255, 255, .28);
}
.sg-btn-sub:hover { background: rgba(255, 255, 255, .08); }

/* 製品ラインアップの競技切り替え */
.sg-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 8px 0 24px;
}
.sg-filter button {
  --c: #1e3a8a;
  font: inherit;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 999px;
  padding: 8px 18px;
  border: 1.5px solid var(--c);
  background: #fff;
  color: var(--c);
  transition: background .15s ease, color .15s ease;
}
.sg-filter button:hover { background: color-mix(in srgb, var(--c) 10%, #fff); }
.sg-filter button.is-on {
  background: var(--c);
  color: #fff;
}
.sg-filter-note {
  text-align: center;
  font-size: .85rem;
  color: #64748b;
  margin: -14px 0 18px;
  min-height: 1.2em;
}
.lu-card.sg-hide,
.lu-group.sg-hide { display: none !important; }

@media (max-width: 1100px) {
  .sg-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .sg-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .sg-name { font-size: 1.2rem; }
}
@media (max-width: 460px) {
  .sg-list { grid-template-columns: 1fr; }
}