img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}
.u-sp-only { display: none; }
.u-pc-only { display: block; }
@media screen and (max-width: 767px) {
  .u-sp-only { display: block; }
  .u-pc-only { display: none; }
}
/* FV */
.fv {
  width: 100%;
  background-color: #003353;
  background-image:
    radial-gradient(circle at 100% 150%, #003353 24%, #0a4064 25%, #0a4064 28%, #003353 29%, #003353 36%, #0a4064 36%, #0a4064 40%, transparent 40%, transparent),
    radial-gradient(circle at 0 150%, #003353 24%, #0a4064 25%, #0a4064 28%, #003353 29%, #003353 36%, #0a4064 36%, #0a4064 40%, transparent 40%, transparent),
    radial-gradient(circle at 50% 100%, #0a4064 10%, #003353 11%, #003353 23%, #0a4064 24%, #0a4064 30%, #003353 31%, #003353 43%, #0a4064 44%, #0a4064 50%, #003353 51%, #003353 63%, #0a4064 64%, #0a4064 71%, transparent 71%, transparent),
    radial-gradient(circle at 100% 50%, #0a4064 5%, #003353 6%, #003353 15%, #0a4064 16%, #0a4064 20%, #003353 21%, #003353 30%, #0a4064 31%, #0a4064 35%, #003353 36%, #003353 45%, #0a4064 46%, #0a4064 49%, transparent 50%, transparent),
    radial-gradient(circle at 0 50%, #0a4064 5%, #003353 6%, #003353 15%, #0a4064 16%, #0a4064 20%, #003353 21%, #003353 30%, #0a4064 31%, #0a4064 35%, #003353 36%, #003353 45%, #0a4064 46%, #0a4064 49%, transparent 50%, transparent);
  background-size: 200px 100px;
  text-align: center;
}
.fv__heading {
  margin: 0;
  padding: 0;
  line-height: 0;
}
.fv__img {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.notice {
  text-align: center;
  padding: 40px 20px;
  background-color: #ffffff; /* 背景色はお好みで調整してください */
}
.notice__img {
  width: 100%;
  max-width: 800px; /* 画像が大きくなりすぎないように制限 */
  margin: 0 auto;
}


/* 今年のみどころ*/
.highlights {
  background-color: #fbf3e2;
  text-align: center;
  padding: 60px 20px;
}
.highlights__img {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}
@media screen and (max-width: 767px) {
  .highlights {
    padding: 40px 15px;
  }
}
/* タイムテーブル */
.timetable {
  background-color: #0b2b46;
  text-align: center;
  padding: 10px 20px;
}
.timetable__img {
  display: block;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}
.timetable__img--next {
  margin-top: 60px;
}
@media screen and (max-width: 767px) {
  .timetable {
    padding: 40px 15px;
  }
  .timetable__img--next {
    margin-top: 40px;
  }
}
.championship {
  background-color: #fbf3e2;
  text-align: center;
  padding: 60px 20px;
}
.championship__img {
  display: block;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}
@media screen and (max-width: 767px) {
  .championship {
    padding: 40px 15px;
  }
}
/* アクセス */
.access {
  background-color: #0b2b46;
  text-align: center;
  padding: 60px 20px 20px;
}
.access__title {
  color: #fff;
  font-size: 28px;
  letter-spacing: 0.2em;
  margin-bottom: 40px;
}
.access__img {
  display: block;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}
/* お問い合わせ */
.contact {
  background-color: #0b2b46;
  text-align: center;
  padding: 40px 20px 80px;
}
.contact__title {
  margin-bottom: 40px;
}
.contact__title-img {
  width: 100%;
  max-width: 600px;
}
.contact__cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  max-width: 800px;
  margin: 0 auto 50px;
}
.contact__card {
  flex: 1;
  background-color: #0c395c;
  border: 1px solid #e89f4b;
  border-radius: 12px;
  padding: 30px 15px;
  color: #fff;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.contact__card--link:hover {
  opacity: 0.8;
  transition: opacity 0.3s;
}
.contact__label {
  color: #fce354;
  font-weight: bold;
  font-size: 18px;
  margin-bottom: 15px;
}
.contact__number {
  font-size: 22px;
  font-weight: bold;
  letter-spacing: 0.05em;
}
.contact__insta {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
}
.contact__note {
  font-size: 13px;
  color: #a9c6dd;
}
.contact__organizer {
  font-size: 16px;
  line-height: 1.6;
}
.support__img {
  display: block;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}
/* フッター */
.footer {
  background-color: #051624;
  color: #fff;
  text-align: center;
  padding: 40px 20px;
}
.footer__title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 10px;
}
.footer__info {
  font-size: 12px;
  color: #aaa;
}

/*  バナー */
.banner-bg {
  background-color: #051624; 
  padding: 40px 0; 
  width: 100%; 
  box-sizing: border-box;
}


.banner-carousel-wrap {
  width: 90%; 
  max-width: 600px; 
  margin: 0 auto; 
  overflow: hidden; 
  border-radius: 4px; 
  box-shadow: 0 4px 10px rgba(0,0,0,0.3); 
}

.banner-carousel {
  display: flex;
  width: 500%; 
  animation: slide-animation 15s infinite; 
}

.banner-carousel a {
  display: block;
  width: 20%;
  flex-shrink: 0;
  transition: opacity 0.3s; 
}

.banner-carousel a:hover {
  opacity: 0.7; 
}

.banner-carousel img {
  width: 100%; 
  height: auto;
  display: block;
}

@keyframes slide-animation {
    0%, 20%  { transform: translateX(0); }       
    25%, 45% { transform: translateX(-20%); }    
    50%, 70% { transform: translateX(-40%); }    
    75%, 95% { transform: translateX(-60%); }    
    100%     { transform: translateX(-80%); }   
}

@media screen and (max-width: 767px) {
 
  .access__title {
    font-size: 22px;
  }
 
  .contact__cards {
    flex-direction: column;
    max-width: 400px;
  }
 
  .contact__card {
    padding: 20px 15px;
  }
}