@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

/* ============ tokens ============ */
:root{
  --brand:#154DB3;
  --brand-dark:#0F3A87;
  --brand-soft:#E8EFFB;
  --accent:#0B7F7D;
  --accent-soft:#E3F5F4;
  --ink:#1A1D24;
  --muted:#5B6472;
  --line:#E3E7EE;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FB;
  --radius:14px;
  --maxw:1120px;
  --font:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI",Meiryo,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.45;margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1.2em}
ul{margin:0;padding:0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ============ header ============ */
.hd{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:74px;display:flex;align-items:center;gap:28px}
.logo{display:flex;flex-direction:column;line-height:1.25;text-decoration:none}
.logo:hover{text-decoration:none}
.logo b{font-size:20px;color:var(--brand);letter-spacing:.005em;font-weight:700}

/* 代表者プロフィール（会社概要） */
.sig{display:flex;align-items:center;gap:18px;margin-top:34px;padding-top:28px;border-top:1px solid var(--line)}
.sig img{width:96px;height:96px;flex:none;border-radius:50%;object-fit:cover;object-position:center;background:var(--bg-soft)}
.sig .r{font-size:12.5px;color:var(--muted);display:block;margin-bottom:2px;letter-spacing:.02em}
.sig .n{font-size:19px;font-weight:700;letter-spacing:.04em;display:block}
.sig .sg{width:158px;height:auto;max-width:100%;margin-top:9px;border-radius:0;opacity:.88}
@media(max-width:480px){.sig img{width:76px;height:76px}.sig .n{font-size:17px}.sig .sg{width:132px;height:auto}}
.logo span{font-size:10.5px;color:var(--muted);letter-spacing:.08em}
.nav{margin-left:auto;display:flex;align-items:center;gap:26px}
.nav a:not(.btn){color:var(--ink);font-size:14.5px;font-weight:500}
.nav a:not(.btn):hover{color:var(--brand);text-decoration:none}
.nav a.on:not(.btn){color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:700;font-size:14.5px;border:1.5px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-p{background:var(--brand);color:#fff}
.btn-p:hover{background:var(--brand-dark);color:#fff}
.btn-g{border-color:var(--line);color:var(--ink);background:#fff}
.btn-g:hover{border-color:var(--brand);color:var(--brand)}
.btn-w{background:#fff;color:var(--brand)}
.btn-w:hover{color:var(--brand-dark)}
.btn-a{background:var(--accent);color:#fff}
.btn-a:hover{background:#085F5D;color:#fff}
.btn-lg{padding:16px 34px;font-size:16px}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;position:relative}
.burger i{position:absolute;left:12px;right:12px;height:2px;background:var(--ink);transition:.2s}
.burger i:nth-child(1){top:15px}.burger i:nth-child(2){top:21px}.burger i:nth-child(3){top:27px}
.burger.on i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.on i:nth-child(2){opacity:0}
.burger.on i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:900px){
  .nav{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;border-bottom:1px solid var(--line);display:none;max-height:calc(100vh - 74px);overflow:auto}
  .nav.open{display:flex}
  .nav a:not(.btn){padding:15px 2px;border-bottom:1px solid var(--line);font-size:16px}
  .nav .btn{margin-top:18px;padding:15px 22px;font-size:16px}
  .burger{display:block}
}

/* ============ hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-color:#0D3379;
  background-image:
    linear-gradient(100deg,rgba(9,37,90,.95) 0%,rgba(13,51,121,.90) 46%,rgba(21,77,179,.74) 100%),
    url("img/hero.jpg");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
@media(max-width:700px){
  .hero{
    background-image:
      linear-gradient(168deg,rgba(9,37,90,.95) 0%,rgba(13,51,121,.92) 55%,rgba(21,77,179,.89) 100%),
      url("img/hero-sm.jpg");
  }
}
.hero-in{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:96px 24px 104px}
.hero .eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.14em;font-weight:700;color:#D6E4FA;margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.35;margin-bottom:24px;max-width:17em}
.hero p{font-size:clamp(15px,1.6vw,17.5px);color:#E4EDFC;max-width:40em;margin-bottom:34px}
.hero .cta{display:flex;flex-wrap:wrap;gap:14px}

/* page hero (sub pages) */
.phero{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.phero-in{max-width:var(--maxw);margin:0 auto;padding:60px 24px 56px}
.phero .en{display:block;font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:700;margin-bottom:12px}
.phero h1{font-size:clamp(26px,3.6vw,40px);margin-bottom:16px}
.phero p{color:var(--muted);max-width:44em;margin:0}
.phero.ac .en{color:var(--accent)}

.crumb{font-size:12.5px;color:var(--muted);padding:14px 0 0}
.crumb a{color:var(--muted)}
.crumb span{margin:0 8px;opacity:.5}

/* ============ sections ============ */
.sec{padding:88px 0}
.sec.soft{background:var(--bg-soft)}
.sec.tight{padding:64px 0}
.shead{margin-bottom:48px;max-width:46em}
.shead .en{display:block;font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:700;margin-bottom:12px}
.shead h2{font-size:clamp(23px,2.9vw,33px);margin-bottom:16px}
.shead p{color:var(--muted);margin:0}
.shead.ac .en{color:var(--accent)}
.shead.mid{margin-left:auto;margin-right:auto;text-align:center}

/* grids */
.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.2s}
.card:hover{border-color:#C7D6F0;box-shadow:0 10px 30px rgba(21,77,179,.08);transform:translateY(-2px)}
.card h3{font-size:18px;margin-bottom:12px}
.card p{color:var(--muted);font-size:14.5px;margin:0}
.card .ic{width:48px;height:48px;border-radius:12px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .ic svg{width:24px;height:24px;stroke:var(--brand);fill:none;stroke-width:1.8}
.card.feat{border-color:var(--accent);background:linear-gradient(180deg,var(--accent-soft) 0%,#fff 46%)}
.card.feat .ic{background:#fff}
.card.feat .ic svg{stroke:var(--accent)}
.card .tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;color:#fff;background:var(--accent);padding:4px 11px;border-radius:999px;margin-bottom:14px}
.card a.more{display:inline-block;margin-top:16px;font-size:13.5px;font-weight:700}

/* numbered steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:st}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px}
.step .n{width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:16px}
.step.ac .n{background:var(--accent)}
.step h3{font-size:16.5px;margin-bottom:10px}
.step p{color:var(--muted);font-size:14px;margin:0}
.step .term{display:block;font-size:12.5px;color:var(--muted);font-weight:500;margin-bottom:8px}

/* list */
.tick{list-style:none}
.tick li{position:relative;padding:0 0 12px 30px;color:var(--muted);font-size:15px}
.tick li::before{content:"";position:absolute;left:4px;top:11px;width:11px;height:6px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg)}
.tick.ac li::before{border-color:var(--accent)}
.tick strong{color:var(--ink);font-weight:700}

/* split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:34px}}
.split h2{font-size:clamp(22px,2.7vw,31px);margin-bottom:20px}
.split p{color:var(--muted)}

/* stat band */
.band{background:var(--brand);color:#fff;border-radius:18px;padding:48px 44px}
.band h2{font-size:clamp(21px,2.5vw,28px);margin-bottom:14px}
.band p{color:#D8E3F8;margin-bottom:26px}
.band.ac{background:linear-gradient(140deg,#0A6E6B,#064F4D)}
.band.ac p{color:#DCF2F1}
@media(max-width:620px){.band{padding:34px 24px}}

/* works */
.works{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
@media(max-width:700px){.works{grid-template-columns:1fr}}
.works li{padding:17px 0;border-bottom:1px solid var(--line);font-size:15px;display:flex;gap:14px;align-items:flex-start}
.works .cat{flex:none;font-size:11.5px;font-weight:700;color:var(--brand);background:var(--brand-soft);border-radius:5px;padding:3px 9px;margin-top:3px}

/* news */
.news{list-style:none}
.news li{border-bottom:1px solid var(--line)}
.news a,.news .row{display:flex;gap:22px;padding:20px 4px;color:var(--ink);align-items:baseline;flex-wrap:wrap}
.news a:hover{color:var(--brand);text-decoration:none}
.news time{flex:none;font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.news .lb{flex:none;font-size:11.5px;font-weight:700;color:var(--brand);border:1px solid var(--brand-soft);background:var(--brand-soft);border-radius:5px;padding:2px 10px}
.news p{margin:0;font-size:15px}

/* table */
.tbl{width:100%;border-collapse:collapse;font-size:15px}
.tbl th,.tbl td{text-align:left;vertical-align:top;padding:18px 8px;border-bottom:1px solid var(--line)}
.tbl th{width:190px;font-weight:700;color:var(--ink)}
.tbl td{color:var(--muted)}
@media(max-width:620px){
  .tbl th,.tbl td{display:block;width:auto;padding:0 0 6px}
  .tbl th{padding-top:18px;border:0}
  .tbl td{padding-bottom:18px}
}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 40px 22px 0;font-weight:700;font-size:16px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:31px;width:10px;height:10px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:.2s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq .a{padding:0 0 24px;color:var(--muted);font-size:15px}

/* form */
.form{display:grid;gap:22px;max-width:720px}
.field label{display:block;font-weight:700;font-size:14.5px;margin-bottom:8px}
.req{font-size:11px;font-weight:700;color:#fff;background:#C0392B;border-radius:4px;padding:2px 7px;margin-left:8px;vertical-align:2px}
.opt{font-size:11px;font-weight:700;color:var(--muted);background:var(--bg-soft);border:1px solid var(--line);border-radius:4px;padding:2px 7px;margin-left:8px;vertical-align:2px}
.field input,.field textarea{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:10px;font-family:inherit;font-size:15.5px;background:#fff;color:var(--ink)}
.field input:focus,.field textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:transparent}
.field textarea{min-height:170px;resize:vertical}
.consent{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:18px 20px;font-size:14.5px;color:var(--muted)}
.consent label{display:flex;gap:11px;align-items:flex-start;font-weight:400;cursor:pointer}
.consent input{margin-top:5px;flex:none;width:17px;height:17px;accent-color:var(--brand)}

/* legal doc */
.doc{max-width:820px}
.doc h2{font-size:20px;margin:44px 0 14px;padding-top:8px}
.doc h2:first-child{margin-top:0}
.doc p,.doc li{color:var(--muted);font-size:15px}
.doc ol,.doc ul{padding-left:1.4em;margin:0 0 1.2em}
.doc li{margin-bottom:8px}
.doc .rev{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:24px 28px;margin-bottom:44px}
.toc h2{font-size:15px!important;margin:0 0 12px!important}
.toc ol{margin:0;padding-left:1.3em}
.toc li{margin-bottom:5px;font-size:14.5px}

.note{background:var(--brand-soft);border-radius:var(--radius);padding:22px 26px;font-size:14.5px;color:#22365E}
.note strong{color:var(--brand-dark)}

/* cta */
.cta-sec{padding:84px 0;background:var(--bg-soft)}
.cta-box{text-align:center;max-width:44em;margin:0 auto}
.cta-box h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:16px}
.cta-box p{color:var(--muted);margin-bottom:30px}
.cta-box .row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.tel{display:inline-flex;flex-direction:column;align-items:center;gap:2px;margin-top:26px}
.tel b{font-size:26px;letter-spacing:.03em;color:var(--ink);font-variant-numeric:tabular-nums}
.tel span{font-size:12.5px;color:var(--muted)}

/* footer */
.ft{background:#101725;color:#9BA6B8;padding:64px 0 30px;font-size:14px}
.ft-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid #222C3E}
@media(max-width:800px){.ft-top{grid-template-columns:1fr;gap:32px}}
.ft b.nm{display:block;color:#fff;font-size:17px;letter-spacing:.05em;margin-bottom:12px}
.ft address{font-style:normal;line-height:1.9}
.ft h4{color:#fff;font-size:13px;letter-spacing:.08em;margin-bottom:16px}
.ft ul{list-style:none}
.ft li{margin-bottom:11px}
.ft a{color:#9BA6B8}
.ft a:hover{color:#fff}
.ft-bt{display:flex;justify-content:space-between;gap:18px;padding-top:26px;flex-wrap:wrap;font-size:12.5px}
.ft-bt nav{display:flex;gap:20px}