:root{
  --cyan:#29b8d8;
  --cyan-deep:#1487a5;
  --aqua-light:#cdeef6;
  --navy:#1a2940;
  --brush-blue:#155b77;
  --red:#d8262c;
  --gray-text:#333;
  --gray-line:#e2e2e2;
  --gray-bg:#f5f5f5;
  --body:'Noto Sans JP','Hiragino Sans',sans-serif;
  --serif:'Shippori Mincho B1',serif;
  --brush:'Reggae One',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--gray-text);background:#fff;line-height:2;font-size:15px}
img{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:2px}
body{padding-top:58px}
section.block,#walk,#shoot,#fee,#contact{scroll-margin-top:72px}

/* ===================== 固定グローバルナビ ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--gray-line);
  backdrop-filter:blur(6px);
}
.site-header .inner{
  max-width:1100px;margin:0 auto;height:58px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
}
.site-logo{
  font-weight:900;color:var(--navy);text-decoration:none;
  font-size:15px;letter-spacing:.04em;line-height:1.3;
  display:flex;align-items:center;gap:9px;white-space:nowrap;
}
.site-logo::before{
  content:"";width:11px;height:11px;flex:0 0 auto;
  background:var(--cyan);border-radius:50% 50% 50% 0;
  transform:rotate(-45deg);
}
.sp-only{display:none}
@media (max-width:480px){
  .sp-only{display:inline}
  .site-logo{white-space:normal;font-size:12.5px;line-height:1.35}
}
.site-menu{display:flex;gap:2px;list-style:none}
.site-menu a{
  display:block;text-decoration:none;font-weight:700;font-size:13.5px;
  color:var(--gray-text);padding:8px 14px;border-radius:4px;
  transition:color .15s ease,background .15s ease;
}
.site-menu a:hover{color:var(--cyan-deep);background:#f0fafc}
.site-menu a.nav-contact{color:var(--red)}
.menu-btn{
  display:none;width:44px;height:44px;
  background:none;border:none;cursor:pointer;
  position:relative;
}
.menu-btn span{
  position:absolute;left:11px;width:22px;height:2px;
  background:var(--navy);border-radius:2px;
  transition:transform .25s ease,opacity .2s ease,top .25s ease;
}
.menu-btn span:nth-child(1){top:15px}
.menu-btn span:nth-child(2){top:21px}
.menu-btn span:nth-child(3){top:27px}
.menu-btn[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}

@media (max-width:860px){
  .menu-btn{display:block}
  .site-menu{
    position:absolute;top:58px;left:0;right:0;
    flex-direction:column;gap:0;
    background:#fff;border-bottom:1px solid var(--gray-line);
    box-shadow:0 10px 20px rgba(0,0,0,.08);
    max-height:0;overflow:hidden;
    transition:max-height .3s ease;
  }
  .site-menu.open{max-height:320px}
  .site-menu a{
    padding:15px 22px;border-radius:0;
    border-top:1px solid #f0f0f0;font-size:14.5px;
  }
  .site-logo{font-size:13.5px}
}


/* ===================== HERO ===================== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle 8px at 8% 22%, rgba(255,255,255,.7) 0 8px, transparent 9px),
    radial-gradient(circle 5px at 16% 70%, rgba(255,255,255,.6) 0 5px, transparent 6px),
    radial-gradient(circle 10px at 90% 30%, rgba(255,255,255,.55) 0 10px, transparent 11px),
    radial-gradient(circle 6px at 82% 75%, rgba(255,255,255,.6) 0 6px, transparent 7px),
    radial-gradient(circle 4px at 60% 14%, rgba(255,255,255,.7) 0 4px, transparent 5px),
    radial-gradient(circle 5px at 38% 80%, rgba(255,255,255,.5) 0 5px, transparent 6px),
    radial-gradient(ellipse 140% 90% at 50% 0%, var(--aqua-light) 0%, #8fd8ea 45%, var(--cyan) 100%);
  padding:46px 16px 0;
  text-align:center;
}
.hero-grant{
  position:relative;z-index:3;
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:#fff;background:rgba(20,90,110,.55);
  padding:4px 18px;border-radius:2px;
}
.brush-word{
  position:absolute;z-index:0;
  font-family:var(--brush);
  color:var(--brush-blue);
  opacity:.16;line-height:1;
  pointer-events:none;user-select:none;
}
.brush-word.left{top:2%;left:-5%;font-size:clamp(150px,30vw,340px);transform:rotate(-12deg)}
.brush-word.right{top:36%;right:-7%;font-size:clamp(130px,26vw,300px);transform:rotate(10deg)}
.hero-band{
  position:relative;z-index:2;
  max-width:760px;margin:28px auto 0;
  background:#fff;
  padding:30px 22px 26px;
  transform:skewY(-1.6deg);
  box-shadow:0 0 0 8px rgba(255,255,255,.35), 0 0 34px rgba(255,255,255,.65);
  border-radius:6px;
}
.hero-band-inner{transform:skewY(1.6deg)}
.hero-date{
  font-family:var(--serif);font-weight:800;
  color:var(--red);font-size:clamp(22px,5vw,34px);
  letter-spacing:.06em;
}
.hero-date .tilde{font-size:.7em;vertical-align:.15em;margin:0 .3em}
.hero-title-en{
  font-family:var(--serif);font-weight:800;
  color:var(--navy);
  font-size:clamp(34px,8vw,68px);
  line-height:1.12;letter-spacing:.01em;
  margin-top:6px;
}
.hero-time{
  margin-top:12px;font-weight:700;font-size:clamp(13px,3.2vw,16px);
  color:var(--navy);letter-spacing:.08em;
}
.hero-time .rain{display:block;font-size:.85em;color:#777;font-weight:500}
.hero-bars{position:relative;z-index:2;margin-top:30px}
.bar-navy{
  background:var(--navy);color:#fff;
  font-weight:900;font-size:clamp(15px,3.8vw,21px);
  letter-spacing:.1em;padding:12px 14px;
}
.bar-red{
  background:var(--red);color:#fff;
  font-weight:700;font-size:clamp(10px,2.4vw,12.5px);
  letter-spacing:.16em;padding:7px 14px;text-transform:uppercase;
}
.hero-wave{display:block;width:100%;height:46px;position:relative;z-index:2;margin-top:-1px}

/* ---- スプラッシュアニメーション ---- */
.splash-layer{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.drop{
  position:absolute;bottom:-20px;
  background:rgba(255,255,255,.75);
  border-radius:50% 50% 50% 0;
  transform:rotate(-45deg);
  animation:rise linear infinite;
  opacity:0;
}
.drop:nth-child(1){left:6%;width:10px;height:10px;animation-duration:5.2s;animation-delay:0s}
.drop:nth-child(2){left:14%;width:6px;height:6px;animation-duration:4.1s;animation-delay:1.2s}
.drop:nth-child(3){left:23%;width:13px;height:13px;animation-duration:6.4s;animation-delay:.6s}
.drop:nth-child(4){left:31%;width:7px;height:7px;animation-duration:4.6s;animation-delay:2.1s}
.drop:nth-child(5){left:42%;width:9px;height:9px;animation-duration:5.7s;animation-delay:.3s}
.drop:nth-child(6){left:55%;width:6px;height:6px;animation-duration:4.3s;animation-delay:1.7s}
.drop:nth-child(7){left:63%;width:12px;height:12px;animation-duration:6.1s;animation-delay:.9s}
.drop:nth-child(8){left:72%;width:8px;height:8px;animation-duration:4.8s;animation-delay:2.6s}
.drop:nth-child(9){left:81%;width:10px;height:10px;animation-duration:5.5s;animation-delay:.1s}
.drop:nth-child(10){left:89%;width:6px;height:6px;animation-duration:4.2s;animation-delay:1.9s}
.drop:nth-child(11){left:36%;width:5px;height:5px;animation-duration:3.8s;animation-delay:3s}
.drop:nth-child(12){left:95%;width:9px;height:9px;animation-duration:5.9s;animation-delay:1.4s}
@keyframes rise{
  0%{transform:translateY(0) rotate(-45deg) scale(.6);opacity:0}
  12%{opacity:.85}
  70%{opacity:.7}
  100%{transform:translateY(-105vh) rotate(-45deg) scale(1.15);opacity:0}
}
/* 弾けるリング */
.burst{
  position:absolute;border:2px solid rgba(255,255,255,.8);
  border-radius:50%;width:14px;height:14px;
  animation:pop 3.6s ease-out infinite;opacity:0;
}
.burst:nth-child(13){top:24%;left:12%;animation-delay:0s}
.burst:nth-child(14){top:60%;left:78%;animation-delay:1.2s}
.burst:nth-child(15){top:38%;left:48%;animation-delay:2.4s}
.burst:nth-child(16){top:70%;left:28%;animation-delay:.7s;border-color:rgba(255,255,255,.6)}
.burst:nth-child(17){top:18%;left:86%;animation-delay:1.8s;border-color:rgba(255,255,255,.6)}
@keyframes pop{
  0%{transform:scale(.2);opacity:0}
  10%{opacity:.9}
  45%{transform:scale(3.4);opacity:0}
  100%{opacity:0}
}
/* 水面のゆらめき */
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(115deg,transparent 0%,rgba(255,255,255,.16) 28%,transparent 42%,rgba(255,255,255,.1) 64%,transparent 80%);
  background-size:300% 100%;
  animation:shimmer 9s ease-in-out infinite;
}
@keyframes shimmer{
  0%,100%{background-position:0% 0}
  50%{background-position:100% 0}
}
.hero-grant,.hero-band,.hero-bars,.hero-wave{position:relative;z-index:2}

/* ===================== INTRO ===================== */
.intro{max-width:780px;margin:0 auto;padding:72px 20px 56px;text-align:center}
.intro .catch{
  font-size:clamp(18px,4.4vw,24px);font-weight:900;line-height:1.9;
  color:var(--navy);
}
.intro .catch .red{color:var(--red)}
.intro .catch .cyan{color:var(--cyan-deep)}
.intro .body-copy{margin-top:28px;font-size:15px}
.intro .heat{
  margin-top:26px;font-size:12.5px;color:#888;
}
.org-box{
  margin:30px auto 0;max-width:620px;
  border:1px solid var(--gray-line);padding:16px 18px;
  font-size:13.5px;text-align:center;line-height:2;
}
.org-box a{color:var(--red);font-weight:700;text-decoration:none}
.org-box a:hover{text-decoration:underline}

/* ===================== 透かしテキスト帯 ===================== */
.wm{
  overflow:hidden;white-space:nowrap;
  font-style:italic;font-weight:700;
  color:#e9e9e9;font-size:13px;letter-spacing:.18em;
  padding:10px 0;user-select:none;
}

/* ===================== SECTION 共通 ===================== */
section.block{max-width:880px;margin:0 auto;padding:64px 20px}
.sec-head{border-left:7px solid var(--cyan);padding-left:18px;margin-bottom:34px}
.sec-head .en{
  font-style:italic;font-weight:800;
  font-family:var(--serif);
  color:var(--cyan);font-size:clamp(22px,5vw,30px);
  line-height:1.3;
}
.sec-head .jp{font-weight:700;font-size:14px;color:var(--gray-text);margin-top:4px}
.sec-head .jp-main{
  font-weight:900;
  font-size:clamp(20px,5vw,28px);
  color:var(--navy);
  line-height:1.4;
}
.block h3.sub{
  font-weight:900;font-size:clamp(17px,4.2vw,21px);color:var(--navy);
  margin:34px 0 12px;
}
.block p+p{margin-top:1em}
.block .em-red{color:var(--red);font-weight:700}
.block .em-cyan{color:var(--cyan-deep);font-weight:700}

.btn-line{
  display:inline-block;margin-top:18px;
  border:1px solid var(--red);color:var(--red);
  font-weight:700;font-size:13.5px;
  padding:9px 26px;text-decoration:none;border-radius:2px;
  transition:background .15s ease,color .15s ease;
}
.btn-line:hover{background:var(--red);color:#fff}

/* 申込フォームCTA */
.cta{text-align:center;margin:34px auto 0;max-width:620px}
.btn-apply{
  display:inline-block;width:100%;max-width:420px;
  padding:16px 28px;font-family:var(--body);
  font-weight:900;font-size:clamp(15px,3.6vw,18px);letter-spacing:.06em;
  color:#fff;background:var(--red);border:none;border-radius:6px;
  cursor:pointer;text-decoration:none;
  box-shadow:0 6px 16px rgba(216,38,44,.3);
  transition:transform .15s ease,box-shadow .15s ease;
}
.btn-apply:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(216,38,44,.36)}
.btn-apply:disabled,
.btn-apply[aria-disabled="true"]{
  background:#c4c4c4;color:#fff;cursor:not-allowed;
  box-shadow:none;transform:none;opacity:.9;
}
.cta-note{margin-top:12px;font-size:12.5px;color:#888}

/* セクション内の単独写真 */
.walk-photo{margin-top:26px;border:1px solid var(--gray-line);border-radius:4px;overflow:hidden;background:#fff}
.walk-photo img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.walk-photo figcaption{padding:8px 14px;font-size:12.5px;color:#999;text-align:right}

/* ===================== 会場マップ ===================== */
.map-figure{margin-top:26px;border:1px solid var(--gray-line);border-radius:4px;overflow:hidden;background:#fff}
.map-figure img{display:block;width:100%;height:auto}
.map-figure figcaption{padding:8px 14px;font-size:12.5px;color:#999;text-align:right}

/* ===================== 撮影スポット ===================== */
.photo-grid{
  display:grid;gap:18px;margin-top:26px;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
}
.photo{border:1px solid var(--gray-line);border-radius:4px;overflow:hidden;background:#fff}
.photo .ph{
  position:relative;
  aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#eef6f8 0%,#dceef3 100%);
  color:#9bbac4;font-size:12px;letter-spacing:.14em;font-weight:700;
}
.photo .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.photo figcaption{
  padding:10px 14px;font-weight:700;font-size:14px;
  border-top:1px solid var(--gray-line);
  display:flex;align-items:center;gap:8px;
}
.photo figcaption::before{content:"";width:7px;height:7px;background:var(--cyan);flex:0 0 auto}
.ph-note{font-size:12.5px;color:#999;margin-top:14px}

/* ===================== テーブル ===================== */
.info-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:14.5px}
.info-table th,.info-table td{
  border:1px solid var(--gray-line);padding:14px 16px;text-align:left;vertical-align:top;
}
.info-table th{background:var(--gray-bg);font-weight:700;width:30%;white-space:nowrap}
.info-table td .price{font-family:var(--serif);font-weight:800;color:var(--red);font-size:17px}
.note-box{
  margin-top:18px;border:1px solid var(--gray-line);
  background:var(--gray-bg);padding:14px 18px;font-size:13px;color:#555;
}

/* ===================== FOOTER ===================== */
footer{background:var(--navy);color:#fff;text-align:center;padding:48px 20px;margin-top:40px}
footer .f-grant{font-size:11.5px;letter-spacing:.12em;color:rgba(255,255,255,.55)}
footer .f-title{font-weight:900;font-size:18px;letter-spacing:.1em;margin-top:10px}
footer .f-contact{font-size:13.5px;margin-top:16px;line-height:2.1}
footer a.mail{color:#ffd2d3;font-weight:700;text-decoration:none}
footer a.mail:hover{text-decoration:underline}
footer .copy{font-size:11px;color:rgba(255,255,255,.4);margin-top:24px;letter-spacing:.1em}

@media (max-width:640px){
  body{font-size:14px;line-height:1.9}
  section.block{padding:48px 18px}
  /* ヒーロー */
  .hero{padding:34px 14px 0}
  .brush-word.left{top:0;left:-8%;font-size:140px}
  .brush-word.right{top:42%;right:-10%;font-size:120px}
  .hero-grant{font-size:10.5px;padding:4px 12px;letter-spacing:.08em}
  .hero-band{margin-top:22px;padding:22px 14px 20px}
  .hero-bars{margin-top:22px}
  /* 透かし帯 */
  .wm{font-size:11px;padding:6px 0}
  /* 写真グリッド */
  .photo-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .photo .ph{font-size:10px}
  .photo figcaption{padding:8px 10px;font-size:12.5px}
  /* テーブルを縦積みに */
  .info-table{font-size:14px}
  .info-table th,.info-table td{display:block;width:100%}
  .info-table th{border-bottom:none;padding:10px 14px}
  .info-table td{border-top:none;padding:12px 14px}
  .info-table tr+tr th{margin-top:-1px}
  /* イントロ */
  .intro{padding:56px 18px 44px}
  .org-box{font-size:12.5px;padding:14px 14px}
  .btn-line{display:block;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .drop,.burst{animation:none;opacity:0}
  .hero::after{animation:none}
}