@charset "UTF-8";

:root{
  --bg:#f4f7ff;
  --card:#fff;
  --text:#152236;
  --muted:#5b6a7a;
  --line:#e6edf7;

  --blue-500:#3b82f6;
  --blue-600:#2563eb;
  --blue-700:#1d4ed8;

  --shadow:0 18px 42px rgba(16,24,40,.10);
  --shadow-soft:0 12px 28px rgba(16,24,40,.08);
  --radius:18px;

  --container: 1160px;
  --pad: 28px;

  /* 添付2寄せ：Serifを主に、UIはSansで補助 */
  --font-serif: "Noto Serif JP", serif;
  --font-sans: "Noto Sans JP", system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", sans-serif;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  color:var(--text);
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  font-family: var(--font-sans);
}

/* header（戻るだけ） */
.site-header--simple{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.header-inner{
  width:100%;
  padding:14px var(--pad);
  display:flex;
  align-items:center;
  justify-content:flex-start;
}
.back-btn{
  appearance:none;
  border:1px solid #dbe6ff;
  background:#fff;
  color:var(--text);
  font-weight:900;
  border-radius:999px;
  padding:10px 14px;
  font-size:13px;
  cursor:pointer;
  box-shadow:0 6px 16px rgba(16,24,40,.08);
  transition:transform .08s ease, opacity .15s ease;
}
.back-btn:hover{ opacity:.92; }
.back-btn:active{ transform:scale(.98); }

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad);
}

.page{ padding-bottom: 64px; }

/* 添付4（sanyu）寄せ：淡い青の帯＋左寄せ見出しを大きく */
.hero-band{
  padding: 56px 0 44px;
  background:
    radial-gradient(900px 260px at 30% 40%, rgba(59,130,246,.22), rgba(59,130,246,0) 72%),
    linear-gradient(90deg, rgba(59,130,246,.18), rgba(59,130,246,.06));
  border-bottom: 1px solid var(--line);
}
.hero-kicker{
  margin:0 0 10px;
  font-weight:800;
  color:#30425f;
  letter-spacing:.04em;
  font-family: var(--font-sans);
}
.hero-title{
  margin:0;
  font-size: clamp(44px, 2vw, 64px);
  letter-spacing:.02em;
  line-height:1.12;
  font-family: var(--font-serif);
  font-weight:700;
  color:#0f1f36;
}

/* content */
.content{ padding: 26px 0 0; }

/* 上段カード */
.hero-card{
  display:grid;
  grid-template-columns: 460px 1fr;
  gap: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.hero-media{
  background: linear-gradient(135deg, rgba(59,130,246,.18), rgba(59,130,246,.04));
  padding: 18px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.hero-media img{
  width:100%;
  height:auto;
  display:block;
}

/* placeholder（左ロゴ＋右コピー） */
.hero-placeholder{
  width:100%;
  height: 240px;
  border-radius: 16px;
  border: 1px dashed rgba(29,78,216,.35);
  background: rgba(255,255,255,.72);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 20px 22px;
  gap: 16px;
}
.ph-left{
  display:flex;
  align-items:center;
  gap:12px;
}
.ph-mark{
  width:46px;height:46px;border-radius:16px;
  display:grid;place-items:center;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color:#fff;
  font-weight:1000;
  font-family: var(--font-sans);
}
.ph-brand{
  font-weight:900;
  color:#2a3a55;
  letter-spacing:.02em;
  font-family: var(--font-sans);
}

.ph-right{
  text-align:right;
}
.ph-tag{
  display:inline-block;
  font-size:12px;
  font-weight:900;
  padding:6px 10px;
  border-radius:999px;
  background: rgba(37,99,235,.10);
  color: var(--blue-700);
  margin-bottom: 10px;
  font-family: var(--font-sans);
}
.ph-copy{
  display:block;
  font-family: var(--font-serif);
  font-weight:900;
  font-size: 26px;
  line-height:1.2;
  color:#162a45;
}

.hero-body{
  padding: 24px 24px 24px 0;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.lead{
  margin:0 0 16px;
  color: #3f526a;
  line-height:2.0;
  font-size: 15px;
  font-family: var(--font-sans);
  font-weight:600;
}

/* CTA */
.cta{
  display:flex;
  align-items:center;
  gap: 12px;
  text-decoration:none;
  border-radius: 999px;
  padding: 12px 14px;
  width: fit-content;
  background: linear-gradient(90deg, rgba(37,99,235,.14), rgba(59,130,246,.06));
  border: 1px solid rgba(37,99,235,.20);
}
.cta-badge{
  font-size: 12px;
  font-weight:1000;
  color:#fff;
  background: linear-gradient(90deg, var(--blue-700), var(--blue-500));
  padding: 6px 10px;
  border-radius: 999px;
  font-family: var(--font-sans);
}
.cta-text{
  font-weight:1000;
  color:#1f2f49;
  font-family: var(--font-serif);
  letter-spacing:.02em;
}
.cta:hover{ opacity:.92; }

/* cards */
.info-card, .contact-card{
  margin-top: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 18px 18px;
}

.section-title{
  margin: 0 0 12px;
  font-size: 18px;
  letter-spacing:.02em;
  font-family: var(--font-serif);
  font-weight:900;
}

/* table */
.info-table{
  margin:0;
  display:grid;
  gap: 0;
}
.info-table .row{
  display:grid;
  grid-template-columns: 200px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.info-table .row:first-child{ border-top: none; }
dt{
  margin:0;
  font-weight:900;
  color:#22324b;
  font-family: var(--font-serif);
}
dd{
  margin:0;
  color:#3f526a;
  line-height:1.9;
  font-family: var(--font-sans);
  font-weight:600;
}

/* contact：2拠点 */
.office-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.office{
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 16px;
  background: rgba(244,247,255,.55);
}
.office-title{
  margin:0 0 10px;
  font-family: var(--font-serif);
  font-weight:900;
  font-size: 18px;
  color:#0f1f36;
}
.office-dl{
  margin:0;
  display:grid;
  gap: 8px;
}
.office-row{
  display:grid;
  grid-template-columns: 78px 1fr;
  gap: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(230,237,247,.9);
}
.office-row:first-child{
  border-top:none;
  padding-top:0;
}
.office-row dt{
  font-family: var(--font-sans);
  font-weight:900;
  color:#30425f;
}
.office-row dd{
  margin:0;
  font-family: var(--font-sans);
  font-weight:700;
  color:#1f2f49;
}

/* mail block */
.mailbox{
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.mailbox-label{
  margin:0 0 6px;
  font-size:12px;
  font-weight:900;
  color:#5b6a7a;
  letter-spacing:.08em;
  font-family: var(--font-sans);
}
.mailbox-main{
  margin:0 0 6px;
  font-size: 18px;
  font-weight: 1000;
  font-family: var(--font-serif);
}
.mailbox-sub{
  margin:0;
  color:#5b6a7a;
  font-size: 12px;
  line-height:1.8;
  font-family: var(--font-sans);
}

.contact-link{
  color: var(--blue-700);
  text-decoration: none;
}
.contact-link:hover{ text-decoration: underline; }

/* footer */
.page-foot{
  margin-top: 18px;
  text-align:center;
  color:var(--muted);
  font-family: var(--font-sans);
}

/* responsive */
@media (max-width: 980px){
  :root{ --pad: 16px; }
  .hero-card{ grid-template-columns: 1fr; }
  .hero-body{ padding: 16px; }
  .hero-media{ padding: 16px; }
  .office-grid{ grid-template-columns: 1fr; }
  .info-table .row{ grid-template-columns: 1fr; }
}