:root{
  --white:#fff; --paper:#f4f7f6; --line:#d8e2df; --ink:#14201e; --mute:#52625f; --teal:#0f4c4a; --teal-d:#0a3836; --sun:#f2b632; --sun-d:#8a5a00; --coral:#d4502e;
  --sans:"Zen Kaku Gothic New",sans-serif; --en:"Archivo",sans-serif; --ease:cubic-bezier(.2,.7,0,1); --gut:clamp(16px,5vw,64px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--white);color:var(--ink);-webkit-font-smoothing:antialiased;scroll-behavior:smooth}
body{font-family:var(--sans);font-size:16px;line-height:1.9;letter-spacing:.03em;overflow-x:hidden}
:lang(ja) :is(h1,h2,h3,p,li,dd,dt,span,b,a,small,button,th,td,summary,label,legend){word-break:auto-phrase}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:var(--ink);padding:8px 14px;z-index:99}
.skip:focus{left:8px}
.wrap{max-width:1180px;margin:0 auto;padding:0 var(--gut)}
.notice{background:var(--ink);color:#e6eef0;font-size:13px;text-align:center;padding:8px 16px}
.en{font-family:var(--en);font-weight:800;font-size:14px;letter-spacing:.16em;color:var(--teal)}
h2{font-weight:900;font-size:clamp(26px,3.4vw,44px);line-height:1.45;color:var(--teal-d)}
.lead{color:var(--mute);margin-top:12px;max-width:36em}
.sec{padding:clamp(64px,9vw,120px) 0}
.sec.alt{background:var(--paper)}

header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;justify-content:space-between;gap:12px;height:66px}
.logo{font-weight:900;font-size:18px;color:var(--teal-d);display:flex;align-items:center;gap:10px;line-height:1.3}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--mute)}
nav ul{display:flex;gap:22px;list-style:none;font-size:14px;font-weight:500}
nav a[aria-current]{border-bottom:2px solid var(--coral)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 24px;font-weight:700;letter-spacing:.06em;transition:transform .3s var(--ease);white-space:nowrap;border-radius:4px}
.btn:hover{transform:translateY(-2px)}
.btn-main{background:var(--teal);color:#fff}
.btn-sun{background:var(--sun);color:var(--ink)}
.btn-line{background:#06733a;color:#fff}
.btn-ghost{border:2px solid currentColor}
.hd .btn{min-height:42px;padding:0 16px;font-size:13px}

/* hero: two doors */
.hero{background:var(--teal-d);color:#fff;position:relative;overflow:hidden}
.hero .big{position:absolute;right:calc(var(--gut) * -.4);top:clamp(10px,3vh,40px);font-family:var(--en);font-weight:800;font-size:clamp(90px,17vw,260px);line-height:.82;letter-spacing:-.04em;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.22);text-align:right;pointer-events:none;user-select:none}
.hero .wrap{position:relative;padding-top:clamp(40px,7vh,84px);padding-bottom:clamp(40px,7vh,84px)}
.hero h1{font-weight:900;font-size:clamp(30px,4.2vw,60px);line-height:1.4;max-width:15em}
.hero h1 em{font-style:normal;color:var(--sun)}
.hero .sub{margin-top:14px;color:#cfe0dd;max-width:34em}
.doors{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(26px,5vh,48px)}
.door{display:flex;flex-direction:column;gap:6px;padding:clamp(20px,2.4vw,32px);background:#fff;color:var(--ink);border-radius:6px;transition:transform .4s var(--ease),box-shadow .4s}
.door:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(0,0,0,.25)}
.door small{font-family:var(--en);font-weight:800;letter-spacing:.14em;font-size:13px;color:var(--sun-d)}
.door b{font-size:clamp(20px,2.2vw,28px);font-weight:900;color:var(--teal-d);line-height:1.4}
.door span{font-size:15px;color:var(--mute)}
.door i{font-style:normal;font-weight:700;color:var(--coral);margin-top:6px}
.door.co{background:var(--sun)}
.door.co small{color:var(--teal-d)}
.door.co span{color:#3d3a28}
.door.co i{color:var(--teal-d)}

/* flow */
.steps{list-style:none;margin-top:36px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;position:relative}
.steps li{position:relative;padding:0 14px 0 0}
.steps li::before{content:"";position:absolute;left:0;right:0;top:19px;height:2px;background:var(--line)}
.steps li:last-child::before{right:50%}
.steps .num{position:relative;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--teal);color:#fff;font-family:var(--en);font-weight:800;font-size:16px}
.steps h3{font-size:18px;font-weight:900;color:var(--teal-d);margin-top:14px;line-height:1.5}
.steps p{font-size:14px;color:var(--mute);margin-top:6px;line-height:1.8}
.steps time{display:block;font-size:12px;font-weight:700;color:var(--sun-d);margin-top:8px}

/* faq */
.faq{margin-top:32px;border-top:1px solid var(--line);max-width:860px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:20px 44px 20px 0;font-weight:700;position:relative;font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";font-family:var(--en);font-weight:800;color:var(--coral);margin-right:12px}
.faq summary::after{content:"+";position:absolute;right:6px;top:16px;font-family:var(--en);font-size:28px;transition:transform .4s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 0 22px 28px;color:var(--mute)}

/* form */
.formbox{background:var(--teal-d);color:#fff}
.formbox h2{color:#fff}
.formbox .lead{color:#cfe0dd}
.frm{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px;margin-top:30px;max-width:860px}
.frm .full{grid-column:1/-1}
.frm label,.frm legend{display:block;font-weight:700;font-size:14px;margin-bottom:6px;padding:0}
.frm .rq{color:var(--sun);font-size:12px;margin-left:6px}
.frm input[type=text],.frm input[type=email],.frm input[type=date],.frm select,.frm textarea{display:block;width:100%;min-height:48px;border:2px solid transparent;border-radius:4px;padding:10px 14px;font-size:15px;color:var(--ink);background:#fff}
.frm textarea{min-height:120px;resize:vertical}
.frm .touched:invalid{border-color:var(--coral)}
.frm fieldset{border:0;min-width:0}
.opt{display:flex;gap:10px;flex-wrap:wrap}
.opt label{flex:1;min-width:120px;display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;margin:0;border:1px solid rgba(255,255,255,.45);border-radius:4px;cursor:pointer;font-size:14px}
.opt input{accent-color:var(--sun);width:15px;height:15px}
.opt label:has(input:checked){background:#fff;color:var(--teal-d)}
.opt label:has(input:focus-visible){outline:3px solid var(--sun);outline-offset:2px}
.frm .row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.msg{min-height:1.9em;color:var(--sun);font-weight:700;margin-top:6px}
.fnote{font-size:13px;color:#cfe0dd;margin-top:14px;max-width:860px}

/* company: price */
.price{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:32px;align-items:start}
.card{background:#fff;border:1px solid var(--line);padding:clamp(20px,2.6vw,32px);border-radius:6px}
.card h3{font-size:19px;font-weight:900;color:var(--teal-d)}
.pts{list-style:none;margin-top:14px}
.pts li{position:relative;padding:10px 0 10px 24px;border-bottom:1px dashed var(--line);font-size:15px}
.pts li::before{content:"";position:absolute;left:2px;top:19px;width:9px;height:9px;background:var(--sun);border-radius:50%}
.pts b{color:var(--teal-d)}
.sim label{display:flex;justify-content:space-between;font-weight:700;font-size:15px;margin-top:14px}
.sim input[type=range]{width:100%;accent-color:var(--teal);margin-top:8px}
.sim .out{margin-top:22px;padding:20px;background:var(--teal-d);color:#fff;border-radius:4px}
.sim .out small{display:block;font-size:13px;color:#cfe0dd}
.sim .out b{font-family:var(--en);font-weight:800;font-size:clamp(30px,3.6vw,44px);line-height:1.2}
.sim .out b span{font-family:var(--sans);font-size:15px;margin-left:4px}
.tiny{font-size:13px;color:var(--mute);margin-top:12px;line-height:1.8}
.mark{display:inline-block;background:var(--sun);color:var(--ink);font-size:12px;font-weight:700;padding:1px 8px;border-radius:3px;vertical-align:middle;margin-left:6px}

footer{padding:28px 0;font-size:13px;color:var(--mute)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

.reveal{opacity:0;transform:translateY(20px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.doors>*,.price>*,.frm>*{min-width:0}
@media (max-width:900px){
  nav{display:none}
  .doors,.price{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .steps li{padding:0 0 26px 56px}
  .steps li::before{left:19px;right:auto;top:40px;bottom:0;width:2px;height:auto}
  .steps li:last-child::before{display:none}
  .steps .num{position:absolute;left:0;top:0}
  .steps h3{margin-top:0;padding-top:6px}
}
@media (max-width:600px){.frm{grid-template-columns:1fr}.hero .big{font-size:84px}}
@media (max-width:380px){.hd .btn{padding:0 10px;font-size:12px}.logo small{display:none}.logo{font-size:16px}.opt label{min-width:100px}.card{padding:18px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:clamp(26px,5vh,48px)}
@media (max-width:380px){.ctas .btn{width:100%;white-space:normal}}