@charset "UTF-8";
/* ============================================================
   art-effect  新HP案  共通スタイル
   最終ロゴ準拠カラー: ネイビー #173e74 / ブルー #2563eb
   ============================================================ */
:root{
  --navy:#173e74;
  --navy-deep:#0e2a52;
  --blue:#2563eb;
  --blue-light:#5b9ef5;
  --blue-soft:#e8effb;
  --ink:#1d2b39;
  --grey:#5d6b7a;
  --grey-soft:#8a99a8;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg-soft:#f4f7fb;
  --maxw:1120px;
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Helvetica Neue","Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;
  color:var(--ink);line-height:1.9;background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}

/* --- ロゴのE型バー モチーフ --- */
.ebar{display:inline-flex;flex-direction:column;gap:4px;vertical-align:middle}
.ebar i{display:block;height:4px;background:var(--blue);border-radius:1px}
.ebar i:nth-child(1){width:30px}
.ebar i:nth-child(2){width:22px}
.ebar i:nth-child(3){width:30px}

/* --- 見出し共通 --- */
.en{display:block;font-size:.72rem;letter-spacing:.3em;color:var(--blue);font-weight:700;margin-bottom:12px}
.sec-head{margin-bottom:54px}
.sec-head.center{text-align:center}
.sec-head h2{font-size:2rem;font-weight:800;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:16px}
.sec-head.center h2{justify-content:center}
.sec-head h2 .ebar{flex-shrink:0}
.sec-head .lead{color:var(--grey);margin-top:14px;font-size:.97rem}
.sec-head.center .lead{max-width:640px;margin-left:auto;margin-right:auto}

/* --- ボタン --- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:15px 32px;border-radius:6px;font-weight:700;font-size:.95rem;transition:.25s;letter-spacing:.02em}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.28)}
.btn-primary:hover{background:var(--navy);transform:translateY(-2px)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--blue);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid var(--navy);color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-white{display:inline-block;background:#fff;color:var(--navy);padding:16px 38px;border-radius:6px;font-weight:800;transition:.25s}
.btn-white:hover{background:var(--blue-light);color:#fff}

/* --- ヘッダー --- */
header{position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(255,255,255,.95);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;max-width:var(--maxw);margin:0 auto;padding:0 26px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:40px;width:auto}
.logo .name{font-weight:800;color:var(--navy);font-size:.92rem;letter-spacing:.04em;white-space:nowrap;border-left:1px solid var(--line);padding-left:12px;line-height:1.4}
.menu{display:flex;align-items:center;gap:28px}
.menu a{font-size:.9rem;font-weight:600;color:var(--ink);transition:.2s;position:relative;padding:4px 0}
.menu a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--blue);transition:.25s}
.menu a:hover{color:var(--blue)}
.menu a:hover::after,.menu a.active::after{width:100%}
.menu a.active{color:var(--blue)}
.menu .cta{background:var(--blue);color:#fff;padding:11px 24px;border-radius:6px;font-weight:700}
.menu .cta::after{display:none}
.menu .cta:hover{background:var(--navy);color:#fff}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0;padding:6px}
.burger span{width:26px;height:2px;background:var(--navy);display:block}

/* --- 下層ページ ビルボード --- */
.billboard{position:relative;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
.billboard-bg{position:absolute;inset:0;background-position:center;background-size:cover;background-repeat:no-repeat}
.billboard-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,42,82,.95) 0%,rgba(23,62,116,.86) 50%,rgba(37,99,235,.55) 100%)}
.billboard .deco{position:absolute;right:-40px;bottom:-70px;width:340px;opacity:.14;z-index:1}
.billboard .wrap{position:relative;z-index:2;padding:160px 26px 74px;color:#fff;width:100%}
.billboard .en{color:var(--blue-light)}
.billboard h1{font-size:2.5rem;font-weight:800;letter-spacing:.06em}
.billboard p{margin-top:14px;color:#cfe0f5;max-width:560px}
.crumb{margin-top:20px;font-size:.8rem;color:#9fb3c8}
.crumb a:hover{color:#fff}

/* --- ページ内ナビ --- */
.pagenav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:76px;z-index:50}
.pagenav .wrap{display:flex;gap:30px;justify-content:center;padding:15px 26px;flex-wrap:wrap}
.pagenav a{font-size:.9rem;font-weight:700;color:var(--navy);padding:5px 2px;border-bottom:2px solid transparent;transition:.2s}
.pagenav a:hover{border-color:var(--blue);color:var(--blue)}

/* --- セクション --- */
.sec{padding:96px 0}
.sec.alt{background:var(--bg-soft)}

/* --- 表 --- */
.info-table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.info-table th,.info-table td{text-align:left;vertical-align:top;padding:18px 24px;border-bottom:1px solid var(--line);font-size:.95rem}
.info-table th{width:180px;background:var(--navy);color:#fff;font-weight:700;white-space:nowrap;letter-spacing:.04em}
.info-table tr:last-child th,.info-table tr:last-child td{border-bottom:0}

/* --- 問い合わせCTA帯 --- */
.apply{padding:30px 0 100px}
.apply-inner{background:linear-gradient(120deg,var(--navy-deep),var(--navy) 60%,#1b4d9e);border-radius:16px;padding:60px 50px;text-align:center;color:#fff;position:relative;overflow:hidden}
.apply-inner .deco{position:absolute;right:-30px;top:-40px;width:230px;opacity:.12}
.apply-inner>*{position:relative;z-index:2}
.apply-inner h3{font-size:1.6rem;font-weight:800}
.apply-inner p{color:#cfe0f5;margin:16px auto 30px;max-width:560px}
.apply-inner .tel{margin-top:20px;font-size:.88rem;color:#9fb3c8}

/* --- フッター --- */
footer{background:var(--navy-deep);color:#cdd9e6;padding:70px 0 30px;position:relative;overflow:hidden}
footer .foot-deco{position:absolute;right:-60px;bottom:-90px;width:380px;opacity:.05}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);position:relative;z-index:2}
.foot-logo img{height:44px;width:auto;margin-bottom:18px}
.foot-col h4{color:#fff;font-size:.92rem;margin-bottom:16px;letter-spacing:.08em;display:flex;align-items:center;gap:10px}
.foot-col h4::before{content:"";width:14px;height:3px;background:var(--blue-light);display:inline-block}
.foot-col a,.foot-col p{display:block;font-size:.88rem;color:#9fb3c8;margin-bottom:10px}
.foot-col a:hover{color:#fff}
.copy{text-align:center;padding-top:28px;font-size:.78rem;color:#7e93a8;position:relative;z-index:2}

/* --- レスポンシブ --- */
@media(max-width:860px){
  .menu{display:none}
  .burger{display:flex}
  .menu.open{display:flex;position:absolute;top:76px;right:26px;flex-direction:column;background:#fff;padding:20px 28px;border-radius:10px;box-shadow:0 16px 40px rgba(0,0,0,.14);gap:16px;align-items:flex-start}
  .logo .name{display:none}
  .billboard h1{font-size:1.85rem}
  .billboard .wrap{padding:130px 26px 56px}
  /* ページ内ナビ: モバイルでは横スクロール1行に */
  .pagenav{position:static}
  .pagenav .wrap{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;gap:24px;padding:13px 20px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .pagenav .wrap::-webkit-scrollbar{display:none}
  .pagenav a{white-space:nowrap;flex-shrink:0}
  .sec{padding:70px 0}
  .sec-head h2{font-size:1.55rem}
  .info-table th{width:110px;padding:14px 14px;font-size:.85rem}
  .info-table td{padding:14px 14px;font-size:.9rem}
  .foot-grid{grid-template-columns:1fr}
  .apply-inner{padding:46px 28px}
}