:root{
  --tiffany:#6BCDC2;
  --tiffany-pale:#EAF7F5;
  --teal:#237A72;
  --teal-hover:#1B635C;
  --beige:#DFCFB0;
  --beige-pale:#F7F2E8;
  --ink:#2F3B3A;
  --muted:#5B6867;
  --line:#DCE6E4;
  --white:#fff;
  --radius:14px;
  --wrap:1080px;
  --font:"Zen Maru Gothic","Hiragino Maru Gothic ProN","Hiragino Sans","Meiryo",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);font-size:16px;line-height:1.9;letter-spacing:.03em;font-weight:500}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
a:hover{color:var(--teal-hover)}
:focus-visible{outline:3px solid var(--tiffany);outline-offset:3px;border-radius:4px}
h1,h2,h3{line-height:1.5;font-weight:700;letter-spacing:.05em;margin:0}
p{margin:0 0 1em}
.wrap{width:min(100% - 40px,var(--wrap));margin-inline:auto}
.narrow{width:min(100% - 40px,760px);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ico{width:1.2em;height:1.2em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:20px;height:72px}
.brand{flex:none;display:block}
.brand img{height:50px;width:auto}
.gnav{margin-left:auto}
.gnav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.gnav a{display:block;white-space:nowrap;padding:8px 9px;text-decoration:none;color:var(--ink);font-size:14px;border-radius:8px}
.gnav a:hover,.gnav a[aria-current=page]{background:var(--tiffany-pale);color:var(--teal)}
.head-tel{white-space:nowrap;display:flex;flex-direction:column;align-items:flex-end;text-decoration:none;color:var(--teal);line-height:1.3}
.head-tel strong{font-size:20px;letter-spacing:.04em;display:flex;align-items:center;gap:6px}
.head-tel small{font-size:11px;color:var(--muted)}
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;background:var(--teal);color:#fff;text-decoration:none;font-weight:700;border:2px solid var(--teal);font-family:inherit;font-size:16px;cursor:pointer;line-height:1.4}
.btn:hover{background:var(--teal-hover);border-color:var(--teal-hover);color:#fff}
.btn-ghost{background:#fff;color:var(--teal)}
.btn-ghost:hover{background:var(--tiffany-pale);color:var(--teal)}
.btn-sm{padding:8px 18px;font-size:14px}
.menu-btn{display:none;margin-left:auto;background:none;border:0;padding:8px;color:var(--teal);cursor:pointer}
.menu-btn .ico{width:30px;height:30px}

/* hero */
.hero{position:relative;background:#7fc6e0;overflow:hidden}
.hero picture img{width:100%;height:clamp(560px,88vh,820px);object-fit:cover;object-position:center 40%}
.hero-logo{position:absolute;left:50%;top:clamp(36px,8vh,80px);transform:translateX(-50%);width:clamp(170px,19vw,260px);filter:drop-shadow(0 2px 6px rgba(0,60,80,.25))}
.hero-card{position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:min(100% - 32px,640px);background:#fff;padding:78px 40px 34px;text-align:center;clip-path:polygon(0 56px,50% 0,100% 56px,100% 100%,0 100%)}
.hero-card h1{font-size:clamp(20px,2.4vw,27px);color:var(--ink)}
.hero-card h1 span{display:block;font-size:.72em;color:var(--teal);letter-spacing:.12em;margin-bottom:6px}
.hero-card p{color:var(--muted);margin:14px 0 22px;font-size:15px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* sections */
.sec{padding:88px 0}
.sec-beige{background:var(--beige-pale)}
.sec-pale{background:var(--tiffany-pale)}
.sec-title{text-align:center;font-size:clamp(22px,2.6vw,28px);margin-bottom:12px}
.sec-title::after{content:"";display:block;width:44px;height:3px;border-radius:3px;background:var(--tiffany);margin:14px auto 0}
.sec-lead{text-align:center;color:var(--muted);margin:0 auto 44px;max-width:640px}

.needs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.need{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:30px 18px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--ink);transition:border-color .2s}
.need:hover{border-color:var(--tiffany);color:var(--ink)}
.need .ico{width:44px;height:44px;color:var(--teal);stroke-width:1.5}
.need b{font-size:17px}
.need span{font-size:13.5px;color:var(--muted);line-height:1.7}

.intro{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.intro img{border-radius:24px}
.intro h2{font-size:clamp(21px,2.4vw,26px);margin-bottom:18px}

.reasons{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.reasons li{text-align:center}
.reasons .ico{width:56px;height:56px;padding:14px;background:#fff;border-radius:50%;color:var(--teal);stroke-width:1.5;box-sizing:content-box;margin:0 auto 16px;border:2px solid var(--beige)}
.reasons h3{font-size:18px;margin-bottom:10px}
.reasons p{font-size:15px;color:var(--muted);text-align:left}

.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step}
.flow li{position:relative;background:#fff;border-radius:var(--radius);padding:26px 16px 20px;border:1px solid var(--line);counter-increment:step}
.flow li::before{content:counter(step);position:absolute;top:-14px;left:16px;width:30px;height:30px;border-radius:50%;background:var(--tiffany);color:#fff;font-weight:700;display:grid;place-items:center;font-size:15px}
.flow b{display:block;font-size:16px;margin-bottom:6px}
.flow span{font-size:13.5px;color:var(--muted);line-height:1.7;display:block}

.areas{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.areas a{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#fff;border:1px solid var(--line);border-radius:10px;text-decoration:none;color:var(--ink)}
.areas a:hover{border-color:var(--tiffany)}
.areas a .ico{color:var(--tiffany)}
.areas .main a{background:var(--teal);color:#fff;border-color:var(--teal)}
.areas .main a .ico{color:#fff}
.area-note{text-align:center;color:var(--muted);font-size:14px;margin-top:20px}

.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:20px 44px 20px 40px;position:relative;font-weight:700}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";position:absolute;left:4px;top:19px;color:var(--tiffany);font-size:18px}
.faq summary::after{content:"";position:absolute;right:12px;top:28px;width:10px;height:10px;border-right:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);top:32px}
.faq .a{padding:0 12px 22px 40px;color:var(--muted);position:relative}
.faq .a::before{content:"A";position:absolute;left:4px;top:0;color:var(--beige);font-weight:700;font-size:18px}
.more{text-align:center;margin-top:32px}

.cta{background:var(--teal);color:#fff;text-align:center;padding:64px 0}
.cta h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px}
.cta p{opacity:.92}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:24px}
.cta .btn{background:#fff;color:var(--teal);border-color:#fff}
.cta .btn:hover{background:var(--beige-pale)}
.cta .tel-big{display:inline-flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-size:28px;font-weight:700;letter-spacing:.05em}
.cta small{display:block;font-size:13px;opacity:.85}

/* subpage */
.page-head{background:var(--tiffany-pale) url(../img/sub-bg.webp) center 30%/cover;position:relative}
.page-head::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.8) 42%,rgba(255,255,255,0) 78%)}
.page-head .wrap{position:relative;z-index:1;padding:64px 0 56px}
.page-head h1{font-size:clamp(22px,3vw,32px)}
.page-head p{margin:12px 0 0;color:var(--muted);max-width:560px}
.crumbs{font-size:12.5px;color:var(--muted);padding:12px 0;border-bottom:1px solid var(--line)}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{color:var(--muted)}
.prose h2{font-size:clamp(20px,2.3vw,24px);margin:56px 0 18px;padding-left:16px;border-left:5px solid var(--tiffany)}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;margin:32px 0 10px;color:var(--teal)}
.prose ul,.prose ol{padding-left:1.4em}
.prose li{margin-bottom:.4em}
.prose .figure{margin:28px 0;border-radius:20px;overflow:hidden}
.box{background:var(--beige-pale);border-radius:var(--radius);padding:24px 28px;margin:24px 0}
.box h3{margin-top:0}
table.info{width:100%;border-collapse:collapse;font-size:15px}
table.info th,table.info td{border-bottom:1px solid var(--line);padding:16px 12px;text-align:left;vertical-align:top}
table.info th{width:30%;color:var(--teal);font-weight:700;background:var(--tiffany-pale)}
.map{border:0;width:100%;height:360px;border-radius:var(--radius);margin-top:24px}

/* form */
.form{display:grid;gap:22px}
.field label,.field .label{display:block;font-weight:700;margin-bottom:8px}
.req,.opt{display:inline-block;font-size:11px;padding:1px 8px;border-radius:999px;margin-left:8px;vertical-align:2px}
.req{background:var(--teal);color:#fff}
.opt{background:var(--line);color:var(--muted)}
.field input[type=text],.field input[type=email],.field input[type=tel],.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--tiffany);outline:none;box-shadow:0 0 0 3px rgba(107,205,194,.3)}
.field textarea{min-height:160px}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.choices label{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:1.5px solid var(--line);border-radius:999px;font-weight:500;cursor:pointer;margin:0}
.choices input{accent-color:var(--teal)}
.choices label:has(input:checked){border-color:var(--teal);background:var(--tiffany-pale)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.hp{position:absolute;left:-9999px}
.form-note{font-size:13.5px;color:var(--muted)}
.errors{background:#FDECEC;color:#8A1F1F;border-radius:10px;padding:14px 18px}
.submit{text-align:center}
.submit .btn{min-width:280px;padding:16px 28px}

/* footer */
.site-footer{background:#2D4845;color:#E6EFEE;padding:56px 0 100px;font-size:14px}
.site-footer a{color:#E6EFEE}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.foot-grid img{height:60px;width:auto;margin-bottom:16px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:6px}
.foot-grid h2{font-size:14px;margin-bottom:12px;color:var(--tiffany)}
.copy{text-align:center;margin-top:40px;font-size:12px;opacity:.75}

.sp-bar{display:none}

@media (max-width:1300px){.head-tel{display:none}}
@media (max-width:1020px){
  .gnav,.head-tel{display:none}
  .menu-btn{display:block}
  .site-header .btn-sm{display:none}
  .gnav.open{display:block;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px 20px}
  .gnav.open ul{flex-direction:column}
  .gnav.open a{padding:12px;font-size:16px}
  .needs{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:20px}
}
@media (max-width:760px){
  body{font-size:15px}
  .site-header .wrap{height:62px}
  .gnav.open{top:62px}
  .brand img{height:42px}
  .hero{background:#fff}
  .hero picture img{height:470px;object-position:center bottom}
  .hero-logo{width:150px;top:30px}
  .hero-card{position:relative;left:auto;transform:none;margin:-64px auto 0;padding:60px 18px 8px;clip-path:polygon(0 44px,50% 0,100% 44px,100% 100%,0 100%);width:calc(100% - 24px)}
  .hero-card p br{display:none}
  .need b{font-size:15px}
  .need span{font-size:12.5px}
  .sec{padding:64px 0}
  .intro,.reasons,.foot-grid,.two{grid-template-columns:1fr}
  .reasons{gap:40px}
  .needs{gap:12px}
  .need{padding:22px 12px}
  table.info th,table.info td{display:block;width:100%}
  .sp-bar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);padding:8px;gap:8px}
  .sp-bar a{display:flex;align-items:center;justify-content:center;gap:6px;padding:12px;border-radius:999px;text-decoration:none;font-weight:700;font-size:15px}
  .sp-bar .t{border:2px solid var(--teal);color:var(--teal)}
  .sp-bar .f{background:var(--teal);color:#fff}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}