:root{--navy:#12263F;--blue:#1E6FD9;--sky:#DDEFFF;--sky2:#F3F9FF;--green:#2FA36B;--sun:#FFC83D;--pink:#F0508C;--ink:#1C2B3D;--soft:#4B5C70;--line:#C9DAEC;--max:1080px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--sky2);color:var(--ink);font-family:'Noto Sans JP','Hiragino Sans',sans-serif;line-height:1.95;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Zen Maru Gothic','Hiragino Maru Gothic ProN',sans-serif;font-weight:900;color:var(--navy);line-height:1.45;margin:0 0 .5em}
p{margin:0 0 1em;color:var(--soft)}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* header */
.top{background:#fff;position:sticky;top:0;z-index:50;box-shadow:0 1px 0 var(--line)}
.top::after{content:"";display:block;height:5px;background:linear-gradient(90deg,var(--blue) 0 33.3%,var(--green) 33.3% 66.6%,var(--pink) 66.6%)}
.top-in{display:flex;justify-content:space-between;align-items:center;max-width:var(--max);margin:0 auto;padding:12px 24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:'Zen Maru Gothic',sans-serif;font-weight:900;font-size:1.25rem;color:var(--navy)}
.brand svg{width:38px;height:22px}
.nav{display:flex;gap:6px}
.nav a{text-decoration:none;color:var(--navy);font-weight:700;font-size:.86rem;padding:8px 16px;border-radius:99px}
.nav a:hover{background:var(--sky)}
.nav a[aria-current="page"]{background:var(--navy);color:#fff}
.menu-btn{display:none;background:var(--sky);border:0;border-radius:10px;width:44px;height:40px;font-size:1.2rem;color:var(--navy);cursor:pointer}

/* hero */
.hero{background:var(--sky);background-image:linear-gradient(rgba(30,111,217,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(30,111,217,.08) 1px,transparent 1px);background-size:36px 36px;padding:72px 0 80px}
.hero h1{text-wrap:balance;word-break:auto-phrase;font-size:clamp(2rem,5vw,3.4rem);max-width:16em;margin-bottom:.5em}
.hero .lead{max-width:36em;color:var(--ink);font-size:1.02rem}
.chip{display:inline-block;background:var(--navy);color:#fff;font-weight:700;font-size:.8rem;padding:4px 14px;border-radius:99px;margin-bottom:18px;font-family:'Zen Maru Gothic',sans-serif}
.line{list-style:none;margin:54px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);position:relative}
.line::before{content:"";position:absolute;left:16.6%;right:16.6%;top:19px;height:10px;background:linear-gradient(90deg,var(--blue),var(--green),var(--pink));border-radius:6px}
.stn{text-align:center;position:relative;padding:0 10px}
.stn .dot{display:block;width:48px;height:48px;border-radius:50%;background:#fff;border:8px solid var(--c);margin:0 auto 14px;position:relative;z-index:1}
.stn b{display:block;font-family:'Zen Maru Gothic',sans-serif;font-size:1.2rem;color:var(--navy)}
.stn small{color:var(--soft);font-size:.82rem}
.stn:nth-child(1){--c:var(--blue)}.stn:nth-child(2){--c:var(--green)}.stn:nth-child(3){--c:var(--pink)}
.line-note{text-align:center;font-size:.78rem;color:var(--soft);margin:18px 0 0}
.notice{display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:16px;padding:16px 20px;margin-top:34px;max-width:40em;box-shadow:0 4px 0 var(--sun)}
.notice i{flex:none;font-style:normal;background:var(--sun);color:var(--navy);width:28px;height:28px;border-radius:50%;text-align:center;font-weight:900;line-height:28px;font-family:'Zen Maru Gothic',sans-serif}
.notice p{margin:0;font-size:.86rem;color:var(--ink);line-height:1.8}

section{padding:80px 0}
.white{background:#fff}
.sign{display:inline-flex;align-items:stretch;border-radius:12px;overflow:hidden;margin-bottom:26px;box-shadow:0 4px 0 rgba(18,38,63,.15)}
.sign .tag{background:var(--c,var(--blue));color:#fff;font-family:'Zen Maru Gothic',sans-serif;font-weight:900;padding:8px 16px;display:flex;align-items:center;font-size:.95rem}
.sign h2{margin:0;background:var(--navy);color:#fff;padding:8px 22px;font-size:clamp(1.3rem,2.8vw,1.8rem)}
.sec-lead{max-width:40em;margin-bottom:40px}

/* forest */
.forest{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px}
.fcard{background:#fff;border-radius:22px;padding:30px 28px;border:2px solid var(--line);position:relative}
.fcard h3{font-size:1.1rem;margin-bottom:.7em}
.fcard p{font-size:.92rem;line-height:2;margin:0;color:var(--ink)}
.fcard .no{position:absolute;top:-16px;left:22px;background:var(--green);color:#fff;font-family:'Zen Maru Gothic',sans-serif;font-weight:900;border-radius:99px;padding:2px 14px;font-size:.85rem}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px;list-style:none;padding:0}
.facts li{background:var(--navy);color:#fff;border-radius:16px;padding:16px 18px;line-height:1.6}
.facts b{display:block;font-family:'Zen Maru Gothic',sans-serif;color:var(--sun);font-size:1.25rem}
.facts span{font-size:.8rem;color:#C5D6EA}

/* mood */
.mood{background:var(--sky);border-radius:28px;padding:40px}
.mood-btns{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 26px}
.mood-btns button{font:inherit;font-weight:700;border:3px solid var(--navy);background:#fff;color:var(--navy);border-radius:99px;padding:10px 24px;cursor:pointer}
.mood-btns button[aria-pressed="true"]{background:var(--navy);color:#fff}
.mood-out{background:#fff;border-radius:20px;padding:26px 30px;border-left:10px solid var(--c,var(--blue))}
.mood-out h3{font-size:1.4rem;margin-bottom:.3em}
.mood-out p{margin:0;color:var(--ink)}

/* places */
.places{display:grid;gap:26px}
.pl{display:grid;grid-template-columns:200px 1fr;background:#fff;border-radius:22px;overflow:hidden;border:2px solid var(--line)}
.pl .side{background:var(--c);color:#fff;padding:28px 22px;display:flex;flex-direction:column;justify-content:center}
.pl .side b{font-family:'Zen Maru Gothic',sans-serif;font-size:1.4rem;line-height:1.4}
.pl .side span{font-size:.82rem;margin-top:8px;opacity:.95}
.pl .body{padding:26px 30px}
.pl .body p{color:var(--ink);font-size:.94rem}
.pl dl{margin:14px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.pl dt{font-size:.74rem;font-weight:700;color:var(--soft)}
.pl dd{margin:0;font-weight:700;color:var(--navy);font-size:.9rem;line-height:1.6}

/* meters */
.meters{display:grid;gap:18px}
.mt{background:var(--sky2);border-radius:18px;padding:22px 26px;display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center}
.mt h3{font-size:1.05rem;margin:0}
.bars{display:grid;gap:10px}
.bar{display:grid;grid-template-columns:90px 1fr 90px;gap:12px;align-items:center;font-size:.82rem}
.bar .tr{height:12px;background:var(--sky);border-radius:99px;overflow:hidden}
.bar .tr i{display:block;height:100%;width:var(--w);background:var(--c);border-radius:99px}
.bar em{font-style:normal;color:var(--soft);font-weight:700}
.fine{font-size:.82rem;color:var(--soft);margin-top:18px}

/* route */
.route{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.rt{background:#fff;border-radius:22px;padding:26px 28px;border-top:8px solid var(--c);border-left:2px solid var(--line);border-right:2px solid var(--line);border-bottom:2px solid var(--line)}
.rt h3{font-size:1.1rem}
.rt p{margin:0;font-size:.92rem;color:var(--ink)}

/* tickets */
.tickets{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tk{background:#fff;border-radius:20px;position:relative;filter:drop-shadow(0 4px 0 rgba(18,38,63,.12))}
.tk .up{padding:26px 26px 22px;border-bottom:3px dashed var(--line)}
.tk .dn{padding:20px 26px 26px}
.tk::before,.tk::after{content:"";position:absolute;top:calc(var(--cut,120px));width:26px;height:26px;border-radius:50%;background:var(--bg,#fff);transform:translateY(-50%)}
.tk::before{left:-13px}.tk::after{right:-13px}
.tk .name{font-family:'Zen Maru Gothic',sans-serif;font-weight:900;color:var(--c);margin:0 0 6px;font-size:1rem}
.tk .yen{font-family:'Zen Maru Gothic',sans-serif;font-weight:900;font-size:2rem;color:var(--navy);line-height:1.3}
.tk .yen small{display:block;font-size:.78rem;color:var(--soft);font-weight:700;font-family:'Noto Sans JP',sans-serif}
.tk p{margin:0;font-size:.88rem;color:var(--ink);line-height:1.85}

/* tips */
.qa{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.q{display:grid;grid-template-columns:44px 1fr;gap:16px;background:#fff;border-radius:18px;padding:22px 24px;border:2px solid var(--line)}
.q i{font-style:normal;width:44px;height:44px;border-radius:50%;background:var(--sun);color:var(--navy);font-weight:900;font-family:'Zen Maru Gothic',sans-serif;display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.q h3{font-size:1rem;margin-bottom:.3em}
.q p{margin:0;font-size:.9rem;color:var(--ink);line-height:1.9}

.disclaimer{background:#FFF8DD;border:3px solid var(--sun);border-radius:22px;padding:30px 34px}
.disclaimer p{color:var(--ink);font-size:.88rem;margin:0 0 .8em}
.disclaimer p:last-child{margin:0}

footer{background:var(--navy);color:#B8CBE0;padding:52px 0 28px}
.fg{display:flex;justify-content:space-between;gap:36px;flex-wrap:wrap}
footer .brand{color:#fff}
.fg p{max-width:360px;font-size:.84rem;color:#B8CBE0;margin:12px 0 0}
.fg h5{margin:0 0 10px;font-family:'Zen Maru Gothic',sans-serif;color:var(--sun);font-size:.9rem}
.fg ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fg ul a{color:#fff;text-decoration:none;font-size:.88rem}
.fg ul a:hover{text-decoration:underline}
.legal{border-top:1px solid rgba(255,255,255,.18);margin-top:30px;padding-top:18px;font-size:.76rem;line-height:1.8;color:#9FB6CF}

/* subpages */
.sub-hero{background:var(--sky);background-image:linear-gradient(rgba(30,111,217,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(30,111,217,.08) 1px,transparent 1px);background-size:36px 36px;padding:56px 0 50px}
.sub-hero .sign{margin:0}
.sub-hero .sign h1{margin:0;background:var(--navy);color:#fff;padding:10px 26px;font-size:clamp(1.4rem,3.4vw,2.1rem)}
.sub-hero p{margin:18px 0 0;color:var(--ink)}
.prose{max-width:760px;margin:0 auto;padding:54px 24px 90px}
.prose h2{font-size:1.25rem;margin:2em 0 .6em;display:flex;align-items:center;gap:12px}
.prose h2::before{content:"";width:14px;height:14px;border-radius:50%;border:4px solid var(--blue);flex:none}
.prose h2:first-child{margin-top:0}
.prose ul{margin:0 0 1.2em 1.3em;padding:0;color:var(--soft)}
.prose li{margin-bottom:.25em}
.upd{display:inline-block;background:var(--navy);color:#fff;border-radius:99px;padding:2px 16px;font-size:.84rem;font-weight:700}
.no-list{list-style:none;margin:0 0 1.2em;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.no-list li{background:#fff;border:2px solid var(--line);border-radius:99px;padding:4px 18px;font-weight:700;color:var(--navy);margin:0;font-size:.9rem}
.no-list li::before{content:"× ";color:var(--pink)}
.form{background:#fff;border-radius:24px;padding:34px;border:2px solid var(--line);margin-bottom:36px}
.form label{display:block;font-weight:700;color:var(--navy);margin-bottom:6px;font-size:.9rem}
.form input,.form textarea{width:100%;font:inherit;padding:12px 16px;border:2px solid var(--line);border-radius:14px;margin-bottom:20px;background:var(--sky2);color:var(--ink)}
.form input:focus,.form textarea:focus{border-color:var(--blue);outline:0}
.form textarea{min-height:150px;resize:vertical}
.form button{font:inherit;font-weight:900;font-family:'Zen Maru Gothic',sans-serif;background:var(--blue);color:#fff;border:0;border-radius:99px;padding:14px 40px;cursor:pointer;box-shadow:0 4px 0 #154c96}
.form button:active{transform:translateY(2px);box-shadow:0 2px 0 #154c96}

@media (max-width:980px){
  .forest,.tickets,.qa,.route{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr 1fr}
  .pl{grid-template-columns:1fr}
  .mt{grid-template-columns:1fr;gap:12px}
}
@media (max-width:720px){
  .nav{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;max-height:0;overflow:hidden;transition:max-height .25s;box-shadow:0 8px 12px rgba(18,38,63,.1)}
  .nav.open{max-height:340px}
  .nav a{border-radius:0;padding:16px 24px}
  .menu-btn{display:block}
  section{padding:56px 0}
  .line{grid-template-columns:1fr;gap:26px;margin-top:40px}
  .line::before{left:23px;right:auto;top:20px;bottom:20px;width:10px;height:auto;background:linear-gradient(180deg,var(--blue),var(--green),var(--pink))}
  .stn{text-align:left;display:grid;grid-template-columns:48px 1fr;column-gap:18px;align-items:center;padding:0}
  .stn .dot{margin:0;grid-row:1/3}
  .line-note{text-align:left}
  .mood{padding:26px 20px}
  .pl dl{grid-template-columns:1fr}
  .bar{grid-template-columns:70px 1fr 64px}
  .facts{grid-template-columns:1fr}
  .form{padding:22px 18px}
  .disclaimer{padding:24px 20px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}