/* 税理士事務所デモ — 信頼感重視の紺×ゴールド */
:root{
  --main: #0f2942;
  --gold: #b8925a;
  --paper: #fff;
  --bg: #f7f6f3;
  --ink: #232323;
  --gray: #6b6b6b;
  --line: #e2ded4;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Hiragino Mincho ProN","Yu Mincho","Hiragino Sans",serif;color:var(--ink);background:var(--bg);line-height:1.9;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.demo-flag{
  background:#1a1a1a;color:#fff;text-align:center;font-size:12px;padding:9px;letter-spacing:.05em;
}
.demo-flag a{color:#e8c88a;font-weight:700;text-decoration:underline}

header{background:var(--main);color:#fff;padding:20px 0}
header .wrap{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:19px;font-weight:700;letter-spacing:.08em}
.logo small{display:block;font-size:10px;color:#a9bbcb;letter-spacing:.2em;font-weight:400;margin-top:3px}
nav a{margin-left:32px;font-size:13px;letter-spacing:.05em}
nav a:hover{color:var(--gold)}

.hero{
  background:linear-gradient(rgba(15,41,66,.82),rgba(15,41,66,.82)), var(--main);
  color:#fff;text-align:center;padding:100px 24px;
}
.hero .kicker{font-size:12px;letter-spacing:.3em;color:var(--gold);margin-bottom:20px}
.hero h1{font-size:clamp(26px,4vw,40px);font-weight:700;line-height:1.7;margin-bottom:24px}
.hero p{color:#c7d4e0;max-width:520px;margin:0 auto 36px;font-size:14.5px}
.btn-gold{
  display:inline-block;background:var(--gold);color:#1a1a1a;padding:15px 38px;font-size:13.5px;
  letter-spacing:.1em;font-weight:700;
}

section{padding:80px 0}
.head{text-align:center;margin-bottom:50px}
.head .tag{font-size:11.5px;letter-spacing:.25em;color:var(--gold);margin-bottom:12px}
.head h2{font-size:26px;font-weight:700;letter-spacing:.04em}
.line{width:44px;height:2px;background:var(--gold);margin:18px auto 0}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.card{background:var(--paper);border:1px solid var(--line);padding:36px 28px;text-align:center}
.card .n{font-size:11px;color:var(--gold);letter-spacing:.2em;font-weight:700}
.card h3{font-size:17px;margin:14px 0 12px;font-weight:700}
.card p{font-size:13px;color:var(--gray)}

.about{background:var(--paper);padding:80px 0}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-visual{
  aspect-ratio:4/3;background:var(--main);display:flex;align-items:center;justify-content:center;
}
.about h2{font-size:24px;margin-bottom:20px;font-weight:700}
.about p{color:var(--gray);margin-bottom:14px;font-size:14px}

.map-box{aspect-ratio:16/6;background:#e5e1d6;display:flex;align-items:center;justify-content:center;color:var(--gray);font-size:13px;letter-spacing:.1em}

.contact-cta{background:var(--main);color:#fff;text-align:center;padding:70px 24px}
.contact-cta h2{font-size:24px;margin-bottom:16px;font-weight:700}
.contact-cta p{color:#c7d4e0;margin-bottom:30px;font-size:13.5px}

footer{background:#0a1b2c;color:#8ea0b3;text-align:center;padding:32px;font-size:11.5px}

@media (max-width:768px){
  nav{display:none}
  .grid3{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
}