:root{
  --blue-900:#0a4d7e; --blue-700:#0e6cb3; --blue-500:#1e8fd5; --blue-300:#7cc3ea;
  --blue-100:#dff1fb; --blue-50:#f2f9fe;
  --ink:#243746; --ink-soft:#54677a; --line:#cfe6f4;
  --sun:#ffd95e; --white:#ffffff;
  --radius:14px;
  --shadow:0 2px 14px rgba(14,108,179,.10);
  font-size:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans JP',"Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  color:var(--ink); background:var(--white); line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-700)}
h1,h2,h3{font-family:'M PLUS Rounded 1c','Noto Sans JP',sans-serif}

/* ===== top utility bar ===== */
.utilbar{background:var(--blue-900);color:#fff;font-size:.8rem;padding:.35em 1rem;text-align:center}
.utilbar strong{color:var(--sun)}

/* ===== header ===== */
.siteheader{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.headinner{max-width:1100px;margin:auto;display:flex;align-items:center;gap:1rem;padding:.6rem 1rem}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none}
.bmark{width:44px;height:44px}
.btxt{display:flex;flex-direction:column;gap:2px}
.btxt small{font-size:.6rem;color:var(--ink-soft);letter-spacing:.02em}
.btxt img{width:244px;height:auto}
.headspacer{flex:1}
.headtel{text-align:right;line-height:1.3;font-size:.78rem;color:var(--ink-soft)}
.headtel a{font-family:'M PLUS Rounded 1c';font-size:1.25rem;font-weight:800;color:var(--blue-900);text-decoration:none;white-space:nowrap}
.cta-mini{background:var(--blue-700);color:#fff !important;text-decoration:none;font-weight:700;font-size:.85rem;
  padding:.55em 1em;border-radius:999px;white-space:nowrap;box-shadow:var(--shadow)}
.cta-mini:hover{background:var(--blue-500)}

/* ===== nav ===== */
.navtoggle{display:none}
.navbtn{display:none;cursor:pointer;white-space:nowrap;padding:.4rem .6rem;border:1.5px solid var(--line);border-radius:8px;color:var(--blue-900);font-weight:700;font-size:.85rem;user-select:none}
.gnav{background:var(--blue-700)}
.gnav ul{max-width:1100px;margin:auto;display:flex;flex-wrap:wrap;list-style:none}
.gnav a{display:block;color:#fff;text-decoration:none;font-size:.83rem;font-weight:500;padding:.7em 1em;white-space:nowrap}
.gnav a:hover{background:var(--blue-500)}
@media(max-width:900px){
  .btxt img{width:200px}
  .btxt small{display:none}
  .bmark{width:38px;height:38px}
  .headtel{display:none}
  .navbtn{display:block}
  .gnav{display:none}
  .navtoggle:checked ~ .gnav{display:block}
  .gnav ul{flex-direction:column}
  .gnav a{border-bottom:1px solid rgba(255,255,255,.15)}
}

/* ===== hero ===== */
.hero{position:relative;overflow:hidden;
  background:linear-gradient(168deg,#e9f7fe 0%,#bfe7f9 24%,#6cc3ee 60%,#2b9be0 100%)}
.heroinner{max-width:1100px;margin:auto;padding:3rem 1rem 4.2rem;position:relative;z-index:3}
.hero h1{font-size:clamp(1.25rem,3.4vw,2.1rem);font-weight:800;line-height:1.55;color:#084d7e;
  text-shadow:0 1px 0 rgba(255,255,255,.55)}
.hero p.lead{margin-top:.7rem;font-size:clamp(.85rem,1.8vw,1rem);color:#0f5e8f;max-width:34em}
.dolphins{position:absolute;right:clamp(1rem,7vw,7rem);bottom:22%;width:clamp(130px,19vw,225px);height:auto;
  z-index:1;pointer-events:none;filter:drop-shadow(0 6px 18px rgba(10,77,126,.25));
  animation:swim 7s ease-in-out infinite}
@keyframes swim{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-13px) rotate(2.5deg)}}
@media (prefers-reduced-motion:reduce){.dolphins{animation:none}}
@media(max-width:640px){.dolphins{opacity:.5;right:.2rem;bottom:34%}}
.seawave{position:absolute;left:0;right:0;width:100%;pointer-events:none}
.seawave.w1{bottom:3.4rem;z-index:2;opacity:.45}
.seawave.w2{bottom:0;z-index:2;opacity:.5}
.bub{position:absolute;border-radius:50%;pointer-events:none;z-index:1}
.ctaband{position:relative;background:linear-gradient(178deg,#2b9be0 0%,#1478bd 75%,#0e6cb3 100%);
  padding:1.6rem 1rem 3.6rem;margin-top:-1px}
.ctaband .wave{position:absolute;left:0;right:0;bottom:-1px;width:100%}
.ctas{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:.7rem;max-width:940px;margin:auto}
.cta{display:flex;align-items:center;justify-content:center;gap:.5em;text-align:center;
  background:#fff;color:var(--blue-900);text-decoration:none;font-weight:700;font-size:.95rem;
  padding:.9em 1em;border-radius:var(--radius);box-shadow:0 3px 12px rgba(8,50,84,.3);transition:.15s}
.cta small{display:block;font-weight:500;font-size:.72rem;color:var(--ink-soft)}
.cta:hover{transform:translateY(-2px)}
.cta.line{background:#06C755;color:#fff}
.cta.line small{color:#eafff2}
.cta .ic{font-size:1.25rem}

/* ===== info strip ===== */
.infostrip{background:var(--blue-100)}
.infostrip .inner{max-width:1100px;margin:auto;padding:.8rem 1rem;display:flex;flex-wrap:wrap;gap:.4rem 2rem;font-size:.85rem;align-items:center}
.infostrip b{color:var(--blue-900)}

/* ===== sections ===== */
section{padding:3rem 1rem}
.inner{max-width:1100px;margin:auto}
.sec-title{display:flex;align-items:center;gap:.6rem;font-size:1.45rem;color:var(--blue-900);margin-bottom:1.4rem}
.sec-title::before{content:"";width:.55em;height:.55em;border-radius:50%;background:var(--blue-500);box-shadow:.8em .35em 0 -2px var(--blue-300), 1.5em -.25em 0 -4px var(--sun)}

/* news */
.newsbox{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  max-height:430px;overflow-y:auto}
.news{list-style:none}
.news li{display:grid;grid-template-columns:7.2em 1fr;gap:1rem;padding:1rem 1.2rem;border-bottom:1px solid var(--blue-50)}
.news li:last-child{border-bottom:0}
.news time{color:var(--blue-500);font-weight:700;font-size:.85rem;padding-top:.15em}
.news .nt{font-weight:700;color:var(--blue-900)}
.news p{font-size:.88rem;color:var(--ink-soft);margin-top:.15rem}
@media(max-width:600px){.news li{grid-template-columns:1fr;gap:.1rem}}

/* dept cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1rem}
.card{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);padding:1.2rem;text-decoration:none;
  box-shadow:var(--shadow);transition:.15s;display:block}
.card:hover{transform:translateY(-3px);border-color:var(--blue-300)}
.card h3{color:var(--blue-700);font-size:1.05rem;display:flex;align-items:center;gap:.5em}
.card h3 .em{font-size:1.3rem}
.card p{font-size:.83rem;color:var(--ink-soft);margin-top:.4rem}
.subgrid{margin-top:1.6rem}
.subgrid h3{font-size:1.05rem;color:var(--blue-900);margin-bottom:.8rem}

/* hours */
.hours-wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.4rem}
.hours{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.2rem}
.hours h3{color:var(--blue-900);margin-bottom:.7rem;font-size:1.1rem}
.tscroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.85rem;min-width:430px}
th,td{border:1px solid var(--line);padding:.55em .4em;text-align:center}
thead th{background:var(--blue-700);color:#fff;font-weight:700}
tbody th{background:var(--blue-50);color:var(--blue-900);font-weight:500;text-align:left;padding-left:.7em;font-size:.8rem}
td.on{color:var(--blue-700);font-weight:700}
td.off{color:#c0ccd6}
.holiday-note{margin-top:.7rem;font-size:.85rem;color:var(--ink-soft)}
.holiday-note b{color:#d0544f}

/* access */
.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;align-items:start}
@media(max-width:800px){.access-grid{grid-template-columns:1fr}}
.access-card{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.4rem;font-size:.92rem}
.access-card dt{font-weight:700;color:var(--blue-900);margin-top:.8rem}
.access-card dt:first-child{margin-top:0}
.maplink{display:inline-block;margin-top:1rem;background:var(--blue-700);color:#fff;text-decoration:none;font-weight:700;
  padding:.6em 1.4em;border-radius:999px;font-size:.9rem}
.map-placeholder{background:var(--blue-50);border:1.5px dashed var(--blue-300);border-radius:var(--radius);
  min-height:260px;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);font-size:.85rem}

/* footer */
footer{background:var(--blue-900);color:#cfe6f4;margin-top:2rem}
.fnav{max-width:1100px;margin:auto;padding:1.6rem 1rem .4rem;display:flex;flex-wrap:wrap;gap:.2rem 1.4rem;font-size:.8rem}
.fnav a{color:#cfe6f4;text-decoration:none}
.fnav a:hover{color:#fff;text-decoration:underline}
.copy{text-align:center;font-size:.75rem;padding:1rem;opacity:.8}
.alt-bg{background:var(--blue-50)}


/* ===== sub page ===== */
.pagehero{position:relative;overflow:hidden;color:#084d7e;
  background:linear-gradient(168deg,#e9f7fe 0%,#bfe7f9 40%,#8fd2f2 100%);padding:2.2rem 1rem 2.6rem}
.pagehero .inner{max-width:1100px;margin:auto;position:relative;z-index:2}
.pagehero h1{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:800}
.crumb{font-size:.78rem;margin-top:.3rem;color:#2b7cae}
.crumb a{color:#2b7cae;text-decoration:none}
.crumb a:hover{text-decoration:underline}
.pagehero .minidol{position:absolute;right:1.5rem;bottom:-1.4rem;width:92px;opacity:.5;z-index:1}
.pagehero .pwave{position:absolute;left:0;right:0;bottom:-1px;width:100%}
main.sub{max-width:1100px;margin:auto;padding:2.2rem 1rem 3rem}
main.sub section{padding:0;margin-bottom:2.6rem}
.prose p{margin-bottom:1em;font-size:.95rem}
.lead-sign{text-align:right;font-weight:700;color:var(--blue-900)}
.philosophy{background:var(--blue-50);border:1.5px solid var(--line);border-radius:var(--radius);padding:1.3rem 1.5rem;margin-top:1.2rem}
.philosophy h3{color:var(--blue-900);font-size:1rem;margin-bottom:.6rem}
.philosophy li{margin-left:1.3em;font-size:.92rem;margin-bottom:.3em}
.profiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.2rem;margin-top:1rem}
.prof{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.3rem;display:grid;grid-template-columns:110px 1fr;gap:1rem}
.prof img{width:110px;border-radius:10px}
.prof .dep{font-size:.75rem;color:#fff;background:var(--blue-500);border-radius:999px;padding:.15em .8em;display:inline-block}
.prof h3{font-size:1.05rem;color:var(--blue-900);margin:.35rem 0 .1rem;white-space:nowrap}
.prof .role{font-size:.8rem;color:var(--ink-soft)}
.prof dl{grid-column:1/-1;font-size:.85rem}
.prof dt{font-weight:700;color:var(--blue-700);margin-top:.6rem}
.prof dd{color:var(--ink-soft)}
.hosplist{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.6rem;margin-top:.8rem}
.hosplist a{display:block;background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:.7em 1em;
  text-decoration:none;color:var(--blue-900);font-size:.9rem;font-weight:500}
.hosplist a:hover{border-color:var(--blue-300);background:var(--blue-50)}
.noticeacc{border:1.5px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.noticeacc details{border-bottom:1px solid var(--blue-50)}
.noticeacc details:last-child{border-bottom:0}
.noticeacc summary{cursor:pointer;padding:1rem 1.2rem;font-weight:700;color:var(--blue-900);list-style:none;position:relative}
.noticeacc summary::after{content:"+";position:absolute;right:1.2rem;color:var(--blue-500);font-weight:800}
.noticeacc details[open] summary::after{content:"−"}
.noticeacc .accbody{padding:0 1.2rem 1.1rem;font-size:.9rem;color:var(--ink)}
.noticeacc .accbody p{margin-bottom:.7em}
.noticeacc .accbody li{margin-left:1.3em;margin-bottom:.35em}
.hl{background:#fff8e1;border:1.5px solid #f2d879;border-radius:var(--radius);padding:1rem 1.3rem;font-size:.92rem;margin:1rem 0}
.hl b{color:#9a6b00}
.subsec h3{color:var(--blue-700);font-size:1.15rem;margin:1.6rem 0 .7rem;padding-left:.6em;border-left:4px solid var(--blue-500)}
.subsec h4{color:var(--blue-900);font-size:1rem;margin:1.2rem 0 .5rem}
.twocol{display:grid;grid-template-columns:1fr 260px;gap:1.4rem;align-items:start}
@media(max-width:700px){.twocol{grid-template-columns:1fr}}
.sidephoto{border-radius:var(--radius);border:1.5px solid var(--line)}
.ctarow{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center;margin:1rem 0}
.bigbtn{display:inline-block;background:var(--blue-700);color:#fff;text-decoration:none;font-weight:700;
  padding:.85em 1.8em;border-radius:999px;box-shadow:var(--shadow)}
.bigbtn:hover{background:var(--blue-500)}
.qrimg{width:92px;border:1.5px solid var(--line);border-radius:8px}
.pricetable th,.pricetable td{font-size:.85rem}
.pricetable tbody th{text-align:center;padding-left:.4em}
.infolist li{margin-left:1.3em;margin-bottom:.4em;font-size:.92rem}
.note{font-size:.85rem;color:var(--ink-soft)}
.pdfbtn{display:inline-block;background:#fff;border:1.5px solid var(--blue-300);color:var(--blue-700);
  text-decoration:none;font-weight:700;font-size:.9rem;padding:.6em 1.2em;border-radius:999px}
.gnav a.cur{background:var(--blue-500)}

main.sub h3{color:var(--blue-700);font-size:1.15rem;margin:1.6rem 0 .7rem;padding-left:.6em;border-left:4px solid var(--blue-500)}
main.sub h4{color:var(--blue-900);font-size:1rem;margin:1.2rem 0 .5rem}
main.sub h5{color:var(--blue-900);font-size:.95rem;margin:1rem 0 .4rem}
main.sub p{font-size:.95rem;margin-bottom:1em}
.cimg{max-width:min(100%,420px);border-radius:12px;border:1px solid var(--line);margin:.4rem 0 .9rem}
.jumplist{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;margin:.8rem 0 1.4rem}
.jumplist li{margin:0}
.jumplist a{display:inline-block;background:var(--blue-50);border:1.5px solid var(--line);color:var(--blue-700);
  text-decoration:none;font-size:.85rem;font-weight:500;padding:.4em 1em;border-radius:999px}
.jumplist a:hover{background:var(--blue-100);border-color:var(--blue-300)}
main.sub .infolist{margin:0 0 1.2em}
main.sub table{background:#fff}

details.inlineacc{margin:.4rem 0 1.2rem}
details.inlineacc summary{cursor:pointer;display:inline-block;list-style:none;
  background:var(--blue-50);border:1.5px solid var(--blue-300);color:var(--blue-700);
  font-size:.88rem;font-weight:700;padding:.45em 1.3em;border-radius:999px}
details.inlineacc summary::after{content:" ▾"}
details.inlineacc[open] summary::after{content:" ▴"}
details.inlineacc > div{padding:1rem 1.2rem;border:1.5px solid var(--line);border-radius:var(--radius);margin-top:.6rem;background:#fff}
.jumplist a{scroll-margin-top:120px}
main.sub h2,main.sub h3,main.sub h4{scroll-margin-top:110px}