/* ============================================================
   sokonara.co.jp（会社サイト）共通スタイル
   ・コーポレートカラー：紺 #1C2A54 ／ ティール #4EB7BA（現行co.jpで実測）
   ・語彙：薄グレー地・交互の帯・紺2px枠＋角丸14pxの写真・太い英字ラベル（Roboto）・角4pxの紺ボタン
   ・見出しは app と同じ Zen Kaku Gothic New、本文は Noto Sans JP（デザイン統一トークン＝C案§3）
   ============================================================ */
:root{
  --bg:#efefef; --band:#e0e0e0; --white:#fff;
  --navy:#1c2a54; --navy-2:#243566; --teal:#4eb7ba; --teal-d:#2e8c7f; --mint:#e4f1ed;
  --text:#1f2430; --text2:#5a6170; --text3:#8b909c; --line:rgba(28,42,84,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{background:var(--bg);color:var(--text);font-family:'Noto Sans JP','Hiragino Sans',sans-serif;font-size:15px;line-height:1.9;letter-spacing:.02em;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,h4{font-family:'Zen Kaku Gothic New','Noto Sans JP',sans-serif;line-height:1.5;color:var(--navy)}
h1,h2,h3,.lead,.sec-h p{word-break:auto-phrase;line-break:strict}
.wrap{max-width:1080px;margin:0 auto;padding:0 40px}
.en{font-family:'Roboto','Noto Sans JP',sans-serif;font-weight:900;letter-spacing:.08em}
.label{font-size:13px;color:var(--teal-d);letter-spacing:.18em;margin-bottom:12px}
.label.w{color:rgba(255,255,255,.75)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---- header ---- */
.hd{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd .in{height:76px;display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:0 32px}
.hd .logo img{height:30px}
.hd nav{display:flex;gap:26px;align-items:center;font-size:13.5px;font-weight:500;color:var(--navy);white-space:nowrap}
.hd nav a:hover{color:var(--teal-d)}
.hd .acts{display:flex;gap:10px;align-items:center;flex-shrink:0}
.hd .acts .sub{font-size:12.5px;color:var(--text2);margin-right:6px;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:space-between;gap:14px;background:var(--navy);color:#fff;font-weight:700;font-size:14.5px;padding:14px 22px;border-radius:4px;border:2px solid var(--navy);transition:background .15s,transform .15s;font-family:'Zen Kaku Gothic New','Noto Sans JP',sans-serif;white-space:nowrap}
.btn:after{content:'›';font-size:22px;line-height:1}
.btn:hover{background:var(--navy-2);transform:translateY(-1px)}
.btn.teal{background:var(--teal);border-color:var(--teal)}
.btn.teal:hover{background:var(--teal-d);border-color:var(--teal-d)}
.btn.line{background:transparent;color:var(--navy)}
.btn.line:hover{background:rgba(28,42,84,.06)}
.btn.w{background:#fff;color:var(--navy);border-color:#fff}
.btn.w:hover{background:#f3f4f8}
.btn.sm{padding:10px 16px;font-size:13px}
.btn.down:after{content:'↓'}

/* ---- sections ---- */
.sec{padding:96px 0}
.sec.band{background:var(--band)}
.sec.navy{background:var(--navy);color:#fff}
.sec.navy h2,.sec.navy h3{color:#fff}
.sec-h{max-width:760px;margin-bottom:44px}
.sec-h h2{font-size:clamp(24px,3.2vw,34px);font-weight:900;letter-spacing:-.01em;margin-bottom:14px}
.sec-h p{font-size:15px;color:var(--text2)}
.sec.navy .sec-h p{color:rgba(255,255,255,.82)}
.frame{border:2px solid var(--navy);border-radius:14px;overflow:hidden;background:#fff}
.frame img{width:100%;height:100%;object-fit:cover}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 26px}
.card .num{font-family:'Roboto',sans-serif;font-weight:900;font-size:26px;color:var(--teal);line-height:1;margin-bottom:12px}
.card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.card p{font-size:13.5px;color:var(--text2)}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.tags span{background:var(--mint);color:var(--teal-d);font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:3px}
.chip{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:4px;padding:8px 14px;font-size:12.5px;font-weight:700;color:var(--navy)}
.more{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--navy);font-size:15px;margin-top:28px}
.more:after{content:'→'}
.more:hover{color:var(--teal-d)}
.note{font-size:12px;color:var(--text3)}

/* ---- footer ---- */
.ft{background:var(--navy);color:rgba(255,255,255,.82);padding:64px 40px 40px;font-size:13px;line-height:1.9}
.ft .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;max-width:1080px;margin:0 auto}
.ft img.logo{height:30px;margin-bottom:16px}
.ft img.kanden{height:36px;margin-top:18px;opacity:.9}
.ft .col a{display:block;padding:3px 0}
.ft .col a:hover{color:#fff}
.ft .col b{display:block;font-family:'Roboto',sans-serif;font-weight:900;font-size:11px;letter-spacing:.18em;color:var(--teal);margin-bottom:10px}
.ft .copy{max-width:1080px;margin:40px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);font-size:11.5px;color:rgba(255,255,255,.5);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

@media(max-width:1240px){
  .hd nav{gap:18px;font-size:13px}
  .hd .acts .sub{display:none}
}
@media(max-width:1080px){
  .hd nav{display:none}
}
@media(max-width:768px){
  .wrap{padding:0 20px}
  .hd .in{padding:0 20px;height:64px}
  .hd .logo img{height:26px}
  .btn{padding:13px 18px;font-size:14px}
  .sec{padding:60px 0}
  .sec-h{margin-bottom:28px}
  .grid2,.grid3{grid-template-columns:1fr;gap:20px}
  .ft{padding:48px 20px 32px}
  .ft .cols{grid-template-columns:1fr;gap:28px}
}