/* ===== たそがれ社会保険労務士事務所 ===== */
:root{
  --navy:#1f2a44;
  --navy-2:#2c3a5c;
  --amber:#d9893b;
  --amber-d:#b96f26;
  --cream:#faf7f2;
  --text:#2a2a2a;
  --muted:#6b6b6b;
  --line:#e6e0d6;
  --radius:10px;
  --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--text);background:#fff;
  font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",Meiryo,sans-serif;
  font-size:16px;line-height:1.9;letter-spacing:.03em;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy-2)}
h1,h2,h3{line-height:1.4;margin:0}
p{margin:0 0 1em}

.inner{width:min(1100px,100% - 32px);margin-inline:auto}
.inner.narrow{width:min(760px,100% - 32px)}

/* ---- header ---- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(1.2) blur(6px);
}
.site-header .inner{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h);
}
.logo{text-decoration:none;color:var(--navy);display:flex;flex-direction:column;line-height:1.2}
.logo-sub{font-size:11px;color:var(--muted);letter-spacing:.15em}
.logo-main{font-size:20px;font-weight:700;letter-spacing:.08em}

.gnav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
.gnav a{
  display:block;padding:8px 14px;text-decoration:none;
  color:var(--text);font-size:14px;border-radius:6px;
}
.gnav a:hover,.gnav a[aria-current="page"]{color:var(--amber-d)}
.gnav .nav-cta{background:var(--amber);color:#fff;margin-left:8px}
.gnav .nav-cta:hover{background:var(--amber-d);color:#fff}

.nav-toggle{display:none}

/* ---- hero ---- */
.hero{
  position:relative;
  min-height:clamp(420px,72vh,640px);
  display:flex;align-items:center;
  background:
    linear-gradient(90deg,rgba(20,28,48,.78) 0%,rgba(20,28,48,.45) 55%,rgba(20,28,48,.15) 100%),
    url("../images/top.jpg") center/cover no-repeat,
    linear-gradient(135deg,#2c3a5c,#7a5a4a 70%,#d9893b);
  color:#fff;
}
.hero-text{width:min(1100px,100% - 32px);margin-inline:auto;padding:48px 0}
.hero-lead{
  display:inline-block;font-size:14px;letter-spacing:.12em;
  border-bottom:2px solid var(--amber);padding-bottom:4px;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(28px,5vw,48px);font-weight:700;letter-spacing:.08em;
  text-shadow:0 2px 12px rgba(0,0,0,.25);margin-bottom:32px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:200px;padding:14px 28px;border-radius:999px;
  font-weight:700;text-decoration:none;font-size:15px;
  transition:background .2s,color .2s,transform .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--amber);color:#fff}
.btn-primary:hover{background:var(--amber-d)}
.btn-ghost{border:2px solid #fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}

/* ---- sections ---- */
.section{padding:clamp(56px,9vw,96px) 0}
.section:nth-of-type(even){background:var(--cream)}
.sec-title{
  font-size:clamp(22px,3.2vw,28px);color:var(--navy);
  text-align:center;margin-bottom:40px;
}
.sec-title span{
  display:block;font-size:13px;letter-spacing:.25em;
  color:var(--amber-d);font-weight:600;margin-bottom:6px;
  text-transform:uppercase;
}
.intro p{text-align:center}

/* cards */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:0 4px 20px rgba(31,42,68,.08);
}
.card img{aspect-ratio:16/9;object-fit:cover;width:100%;background:#ddd}
.card-body{padding:24px 28px 28px}
.card h3{font-size:20px;color:var(--navy);margin-bottom:12px;padding-left:12px;border-left:4px solid var(--amber)}
.card p{margin:0}

/* fee */
.fee-table{width:100%;border-collapse:collapse;background:#fff;margin-bottom:20px}
.fee-table th,.fee-table td{padding:18px 20px;border-bottom:1px solid var(--line);text-align:left}
.fee-table th{width:55%;color:var(--navy);font-weight:700}
.fee-table td{color:var(--amber-d);font-weight:700}
.notes{margin:0 0 24px;padding-left:1.2em;color:var(--muted);font-size:14px}
.free-badge{
  text-align:center;background:var(--navy);color:#fff;
  padding:14px;border-radius:var(--radius);font-weight:700;margin:0;
}

/* merits */
.merits{counter-reset:m;list-style:none;padding:0;margin:24px 0}
.merits li{
  counter-increment:m;position:relative;
  padding:14px 16px 14px 60px;margin-bottom:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
}
.merits li::before{
  content:counter(m);position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;border-radius:50%;
  background:var(--amber);color:#fff;font-weight:700;
  display:grid;place-items:center;font-size:14px;
}
.small{font-size:14px;color:var(--muted)}

/* other */
.other-list{list-style:none;padding:0;margin:0 0 20px}
.other-list li{padding:18px 0;border-bottom:1px solid var(--line)}
.other-list strong{display:block;color:var(--navy)}

/* CTA */
.cta{background:var(--navy);color:#fff;padding:64px 0;text-align:center}
.cta-lead{font-size:clamp(18px,2.6vw,22px);font-weight:700;margin-bottom:24px}
.cta .hero-btns{justify-content:center}

/* footer */
.site-footer{background:#151d31;color:#c9cdd6;padding:40px 0;text-align:center;font-size:14px}
.site-footer a{color:#fff}
.f-name{color:#fff;font-weight:700;font-size:16px;margin-bottom:8px}
.site-footer address{font-style:normal;margin-bottom:16px}
.copy{margin:0;font-size:12px;opacity:.7}

/* ===== responsive ===== */
@media (max-width:860px){
  .nav-toggle{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;padding:10px;border:0;background:none;cursor:pointer;
  }
  .nav-toggle span{display:block;height:2px;background:var(--navy);transition:.25s}
  .nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-open .nav-toggle span:nth-child(2){opacity:0}
  .nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .gnav{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav-open .gnav{max-height:400px}
  .gnav ul{flex-direction:column;align-items:stretch;padding:8px 16px 16px;gap:0}
  .gnav a{padding:14px 8px;border-bottom:1px solid var(--line);border-radius:0}
  .gnav .nav-cta{margin:12px 0 0;text-align:center;border-radius:999px;border:0}

  .cards{grid-template-columns:1fr;gap:24px}
}
@media (max-width:520px){
  body{font-size:15px}
  .hero{
    background:
      linear-gradient(180deg,rgba(20,28,48,.35) 0%,rgba(20,28,48,.75) 100%),
      url("../images/top.jpg") center/cover no-repeat,
      linear-gradient(135deg,#2c3a5c,#7a5a4a 70%,#d9893b);
  }
  .hero-btns .btn{width:100%}
  .intro p{text-align:left}
  .intro p br{display:none}
  .fee-table th,.fee-table td{display:block;width:100%}
  .fee-table th{border-bottom:0;padding-bottom:4px}
  .fee-table td{padding-top:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}

/* ===== 追加: 電話表記 ===== */
.hero-tel{margin:20px 0 0;font-size:15px;letter-spacing:.08em;opacity:.95}
.cta .hero-tel{margin-top:16px}

/* ===== 下層ページ共通 ===== */
.page-head{
  background:
    linear-gradient(90deg,rgba(20,28,48,.85),rgba(20,28,48,.55)),
    url("../images/top.jpg") center/cover no-repeat,
    var(--navy);
  color:#fff;padding:clamp(48px,8vw,80px) 0;
}
.page-head .en{display:block;font-size:13px;letter-spacing:.25em;color:#f0b97f;text-transform:uppercase;margin-bottom:6px}
.page-head h1{font-size:clamp(24px,4vw,34px);letter-spacing:.08em}

.prose h2{font-size:clamp(19px,2.6vw,22px);color:var(--navy);margin:48px 0 16px;padding-bottom:8px;border-bottom:2px solid var(--line)}
.prose h2:first-child{margin-top:0}
.prose .sign{text-align:right;margin-top:32px;font-weight:700;color:var(--navy)}
.photo{border-radius:var(--radius);margin:0 0 32px;box-shadow:0 4px 20px rgba(31,42,68,.08)}
.career{list-style:none;padding:0;margin:0;border-left:3px solid var(--amber)}
.career li{padding:6px 0 6px 20px;position:relative}
.career li::before{content:"";position:absolute;left:-8px;top:17px;width:13px;height:13px;border-radius:50%;background:#fff;border:3px solid var(--amber)}

/* 事務所概要テーブル */
.info-table{width:100%;border-collapse:collapse;background:#fff}
.info-table th,.info-table td{padding:16px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.info-table th{width:30%;background:var(--cream);color:var(--navy);font-weight:700;white-space:nowrap}
.line-box{display:flex;gap:24px;align-items:center;margin-top:40px;padding:24px;background:var(--cream);border-radius:var(--radius)}
.line-box img{width:140px;flex-shrink:0;background:#fff}
.line-box p{margin:0}

/* 豆知識（アコーディオン） */
.kn-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:40px;padding:0;list-style:none}
.kn-nav a{display:block;padding:6px 14px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:14px;background:#fff}
.kn-nav a:hover{border-color:var(--amber);color:var(--amber-d)}
.kn-cat{margin-bottom:48px;scroll-margin-top:calc(var(--header-h) + 16px)}
.kn-cat h2{font-size:20px;color:var(--navy);margin-bottom:16px;padding-left:12px;border-left:4px solid var(--amber)}
.kn-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px}
.kn-item summary{cursor:pointer;padding:16px 48px 16px 20px;font-weight:700;color:var(--navy);list-style:none;position:relative}
.kn-item summary::-webkit-details-marker{display:none}
.kn-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--amber-d);font-weight:400}
.kn-item[open] summary::after{content:"−"}
.kn-body{padding:0 20px 20px}
.kn-body p:last-child{margin-bottom:0}

/* フォーム */
.form-note{font-size:14px;color:var(--muted)}
.req{display:inline-block;font-size:11px;background:var(--amber);color:#fff;border-radius:4px;padding:1px 6px;margin-left:8px;vertical-align:2px;font-weight:700}
.opt{display:inline-block;font-size:11px;background:#bbb;color:#fff;border-radius:4px;padding:1px 6px;margin-left:8px;vertical-align:2px}
.field{margin-bottom:24px}
.field label{display:block;font-weight:700;color:var(--navy);margin-bottom:6px}
.field input,.field textarea{
  width:100%;padding:12px 14px;font:inherit;font-size:16px;
  border:1px solid #cfc8bc;border-radius:8px;background:#fff;
}
.field input:focus,.field textarea:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber)}
.field textarea{min-height:200px;resize:vertical}
.field .err{color:#c0392b;font-size:14px;margin:6px 0 0}
.field.has-err input,.field.has-err textarea{border-color:#c0392b;background:#fff8f7}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.privacy{font-size:13px;color:var(--muted);background:var(--cream);padding:16px 20px;border-radius:var(--radius);margin-bottom:24px}
.privacy p{margin:0}
.form-actions{text-align:center}
.form-actions .btn{border:0;cursor:pointer;font-family:inherit}
.alert{padding:16px 20px;border-radius:var(--radius);margin-bottom:32px}
.alert-err{background:#fdecea;color:#8a1f13}
.alert-ok{background:#eef7ee;color:#1e5a24;text-align:center}

@media (max-width:520px){
  .info-table th,.info-table td{display:block;width:100%}
  .info-table th{border-bottom:0;padding-bottom:6px}
  .info-table td{padding-top:6px}
  .line-box{flex-direction:column;text-align:center}
}

/* 下層ページの本文は白背景 */
.page-head + .section{background:#fff}