/* 下層ページ専用スタイル。index.html のインラインCSSとは独立している */
:root{
  --ink:#3c4657;
  --ink-light:#7b8494;
  --line:#dfe6ef;
  --wash:#f5f8fb;
  --blue-1:#8fb4dd;
  --blue-2:#476fae;
  --blue-3:#2e4f8f;
  --blue-4:#7396c9;
  --grad:linear-gradient(160deg,var(--blue-1) 0%,var(--blue-2) 38%,var(--blue-3) 62%,var(--blue-4) 100%);
  --line-green:#06C755;
  --ff-jp:'Zen Kaku Gothic New',"Hiragino Kaku Gothic ProN",sans-serif;
  --ff-en:'EB Garamond',serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff-jp);
  font-weight:300;
  color:var(--ink);
  background:#fff;
  line-height:2.1;
  letter-spacing:.06em;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}

/* ---------- header ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:26px 38px;
  pointer-events:none;
  background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  transition:padding .4s ease,box-shadow .4s ease;
}
header.scrolled{padding:14px 38px;box-shadow:0 1px 0 var(--line)}
.brand{pointer-events:auto;font-weight:400;font-size:13px;letter-spacing:.22em;line-height:1.8}
.menu-btn{pointer-events:auto;background:none;border:none;cursor:pointer;width:56px;height:34px;position:relative}
.menu-btn span{
  position:absolute;left:12px;right:12px;height:1.5px;background:var(--ink);
  transition:transform .35s ease,opacity .35s ease;
}
.menu-btn span:nth-child(1){top:11px}
.menu-btn span:nth-child(2){top:21px}
.menu-btn.open span:nth-child(1){transform:translateY(5px) rotate(20deg)}
.menu-btn.open span:nth-child(2){transform:translateY(-5px) rotate(-20deg)}

/* ---------- nav ---------- */
#nav{
  position:fixed;inset:0;z-index:45;background:rgba(250,252,254,.97);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .5s ease;
  overflow-y:auto;padding:90px 6vw 60px;
}
#nav.open{opacity:1;pointer-events:auto}
#nav ul{list-style:none;text-align:center}
#nav li{margin:22px 0}
#nav a{display:inline-block;line-height:1.5}
#nav .en{font-family:var(--ff-en);font-size:19px;letter-spacing:.34em;display:block}
#nav .jp{font-size:11px;letter-spacing:.3em;color:var(--ink-light);display:block;margin-top:2px}
#nav a:hover .en{color:var(--blue-2)}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity 1s ease,transform 1s ease}
.rv.on{opacity:1;transform:none}

/* ---------- page head ---------- */
main{overflow-x:hidden}
.ph{position:relative;padding:170px 7vw 0}
.wash-blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none;z-index:-1}
.blob-a{width:420px;height:420px;background:#dbe7f5;top:-40px;left:-160px}
.crumb{font-size:11.5px;letter-spacing:.14em;color:var(--ink-light)}
.crumb a{border-bottom:1px solid var(--line)}
.crumb a:hover{color:var(--blue-2)}
.ph .en{font-family:var(--ff-en);font-size:clamp(26px,3.6vw,42px);font-weight:400;letter-spacing:.2em;line-height:1.2;margin-top:26px;display:block}
.ph h1{font-weight:300;font-size:clamp(24px,3.6vw,38px);letter-spacing:.13em;line-height:1.9;margin-top:16px}
.ph .sub{display:block;font-size:clamp(13px,1.5vw,15px);color:var(--ink-light);letter-spacing:.2em;margin-top:10px}
.ph .lead{max-width:720px;margin-top:38px}
.ph-img{margin-top:64px;border-radius:4px;overflow:hidden;height:clamp(200px,30vw,340px)}
.ph-img img{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- sections ---------- */
.sec{padding:96px 7vw}
.sec.wash{background:var(--wash)}
.inner{max-width:920px}
.sec h2{
  font-weight:400;font-size:clamp(19px,2.4vw,25px);letter-spacing:.14em;line-height:1.9;
  padding-bottom:18px;border-bottom:1px solid var(--line);
}
.sec h2 .num{font-family:var(--ff-en);font-size:.8em;letter-spacing:.16em;margin-right:14px}
.sec h3{font-weight:400;font-size:16px;letter-spacing:.12em;line-height:1.9;margin-top:44px}
.sec p{margin-top:22px}
.sec p+p{margin-top:16px}
.note{font-size:12.5px;color:var(--ink-light);line-height:2}
.sec .note{margin-top:18px}

/* 箇条書き */
.list{list-style:none;margin-top:26px}
.list li{position:relative;padding-left:24px;margin-top:12px;line-height:2.05}
.list li::before{
  content:"";position:absolute;left:2px;top:15px;
  width:7px;height:7px;border-radius:50%;background:var(--blue-1);
}
.list li b{font-weight:500}

/* タグ */
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  font-size:11px;letter-spacing:.14em;color:var(--blue-2);
  border:1px solid #c4d4e8;border-radius:999px;padding:4px 16px;line-height:1.8;background:#fff;
}

/* カード */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.cards.c2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);padding:38px 30px;display:flex;flex-direction:column}
.card .en{font-family:var(--ff-en);font-size:12px;letter-spacing:.3em;color:var(--blue-2)}
.card .big{font-family:var(--ff-en);font-size:34px;line-height:1.2;margin-top:16px}
.card .big small{font-family:var(--ff-jp);font-size:12px;color:var(--ink-light);letter-spacing:.1em}
.card h3{font-weight:400;font-size:16px;letter-spacing:.1em;margin-top:12px;line-height:1.9}
.card p{font-size:13px;line-height:2.05;margin-top:14px;flex:1}
.card .foot{font-size:11.5px;color:var(--ink-light);margin-top:18px;line-height:1.9}

/* 定義テーブル */
.tbl{margin-top:36px;border-top:1px solid var(--line);background:#fff}
.tbl .row{display:grid;grid-template-columns:210px 1fr;border-bottom:1px solid var(--line)}
.tbl dt{padding:20px 18px;font-size:12.5px;letter-spacing:.14em;color:var(--ink-light);line-height:2}
.tbl dd{padding:20px 18px;font-size:14px;line-height:2.05}
.tbl.w280 .row{grid-template-columns:280px 1fr}

/* ステップ */
.steps{margin-top:44px}
.step{display:grid;grid-template-columns:96px 1fr;gap:2.5vw;padding:34px 0;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
.step .en{font-family:var(--ff-en);font-size:26px;line-height:1.3;letter-spacing:.08em}
.step h3{margin-top:0;font-size:16px}
.step p{font-size:13.5px;line-height:2.05;margin-top:12px}

/* FAQ */
.faq{margin-top:40px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:24px 40px 24px 30px;position:relative;
  font-size:14.5px;letter-spacing:.08em;line-height:1.9;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";position:absolute;left:2px;top:24px;font-family:var(--ff-en);font-size:15px;color:var(--blue-2)}
.faq summary::after{
  content:"";position:absolute;right:10px;top:33px;width:9px;height:9px;
  border-right:1.5px solid var(--blue-2);border-bottom:1.5px solid var(--blue-2);
  transform:rotate(45deg);transition:transform .3s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);top:37px}
.faq .a{padding:0 30px 28px;font-size:13.5px;line-height:2.1;color:var(--ink-light)}

/* 業際・注意書き */
.guard{margin-top:56px;background:#fff;border:1px solid var(--line);padding:34px 32px}
.guard h3{margin-top:0;font-size:14.5px}
.guard p{font-size:12.5px;line-height:2.1;color:var(--ink-light);margin-top:14px}

/* CTA */
.cta{text-align:center;padding:120px 7vw;background:var(--wash)}
.cta .en{font-family:var(--ff-en);font-size:12px;letter-spacing:.3em;color:var(--blue-2)}
.cta h2{font-weight:300;font-size:clamp(19px,2.6vw,27px);letter-spacing:.14em;line-height:2.1;margin-top:18px;border:none;padding:0}
.cta p{max-width:600px;margin:26px auto 0;font-size:13.5px;line-height:2.1}
.btns{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;margin-top:46px}
.btn-line,.btn-blue{
  display:inline-flex;align-items:center;gap:12px;
  font-weight:500;font-size:15px;letter-spacing:.08em;color:#fff;
  border-radius:999px;padding:18px 38px;transition:transform .25s ease,opacity .25s ease;
}
.btn-line{background:var(--line-green);box-shadow:0 10px 26px rgba(6,199,85,.28)}
.btn-blue{background:var(--blue-2)}
.btn-line:hover,.btn-blue:hover{transform:translateY(-2px);opacity:.92}
.line-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:8px;background:#fff;color:var(--line-green);
  font-weight:700;font-size:14px;font-family:Arial,sans-serif;
}
.cta .note{margin-top:26px}

/* 他の業務 */
.others{padding:96px 7vw}
.others .head{font-family:var(--ff-en);font-size:12px;letter-spacing:.3em;color:var(--blue-2)}
.others h2{font-weight:400;font-size:18px;letter-spacing:.14em;margin-top:12px;border:none;padding:0}
.o-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:40px;background:var(--line);border:1px solid var(--line)}
.o-grid a{background:#fff;padding:28px 26px;display:block;transition:background .3s ease}
.o-grid a:hover{background:var(--wash)}
.o-grid .n{font-family:var(--ff-en);font-size:13px;letter-spacing:.2em;color:var(--blue-2)}
.o-grid .t{font-size:14.5px;letter-spacing:.1em;margin-top:8px;line-height:1.9}
.o-grid .d{font-size:12px;color:var(--ink-light);line-height:1.9;margin-top:6px}

/* ---------- footer ---------- */
footer{padding:60px 7vw;text-align:center;border-top:1px solid var(--line)}
.foot-name{font-weight:400;font-size:13px;letter-spacing:.26em}
.foot-links{margin-top:18px;font-size:12px}
.foot-links a{color:var(--ink-light);border-bottom:1px solid var(--line);margin:0 10px}
.foot-links a:hover{color:var(--blue-2)}
.foot-copy{font-family:var(--ff-en);font-size:11px;letter-spacing:.2em;color:var(--ink-light);margin-top:16px}

/* ---------- responsive ---------- */
@media(max-width:820px){
  .ph{padding:130px 6.5vw 0}
  .sec,.others{padding:72px 6.5vw}
  .cta{padding:88px 6.5vw}
  .cards,.cards.c2,.o-grid{grid-template-columns:1fr}
  .tbl .row,.tbl.w280 .row{grid-template-columns:1fr}
  .tbl dt{padding-bottom:0}
  .tbl dd{padding-top:6px}
  .step{grid-template-columns:1fr;gap:6px;padding:28px 0}
  header{padding:20px 22px}
  header.scrolled{padding:12px 22px}
  #nav li{margin:18px 0}
}