/* common.css */
:root{
  --base:#ffffff;
  --text:#222222;
  --sub:#5a6473;
  --line:#e5e7eb;
  --main:#123c73;
  --accent:#d97706;
  --soft:#f7fafc;
  --soft2:#eef4fb;
  --danger:#9a3412;
  --max:1120px;
  --radius:16px;
  --shadow:0 10px 30px rgba(18,60,115,.08);
}

*,
*::before,
*::after{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family:"Hiragino Sans","Yu Gothic","Meiryo",sans-serif;
  color:var(--text);
  background:var(--base);
  line-height:1.8;
}

img{
  max-width:100%;
  height:auto;
  display:block;
}

a{
  color:var(--main);
  text-decoration:none;
}

a:hover{
  text-decoration:underline;
}

.container{
  width:min(calc(100% - 32px), var(--max));
  margin:0 auto;
}

.site-header{
  border-bottom:1px solid var(--line);
  background:#fff;
}

.site-header__inner{
  width:min(calc(100% - 32px), var(--max));
  margin:0 auto;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:14px 0;
}

.site-brand{
  font-size:1.25rem;
  font-weight:700;
  color:var(--main);
}

.site-contact{
  font-size:.95rem;
  color:var(--sub);
  text-align:right;
}

.hero{
  background:linear-gradient(135deg, #f8fbff 0%, #eef4fb 100%);
  border-bottom:1px solid var(--line);
}

.hero__inner{
  width:min(calc(100% - 32px), var(--max));
  margin:0 auto;
  padding:56px 0 52px;
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:28px;
  align-items:center;
}

.badge{
  display:inline-block;
  background:#e8f1fb;
  color:var(--main);
  font-size:.82rem;
  font-weight:700;
  border-radius:999px;
  padding:6px 12px;
  margin-bottom:14px;
}

.hero h1{
  font-size:clamp(2rem, 4vw, 3rem);
  line-height:1.25;
  margin:0 0 16px;
  letter-spacing:.01em;
}

.hero p{
  margin:0 0 22px;
  color:var(--sub);
  font-size:1.04rem;
}

.hero__cta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:18px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 18px;
  border-radius:999px;
  font-weight:700;
  border:1px solid transparent;
}

.btn--main{
  background:var(--main);
  color:#fff;
}

.btn--sub{
  background:#fff;
  color:var(--main);
  border-color:#cfe0f5;
}

.hero-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px;
}

.hero-card__title{
  font-weight:700;
  color:var(--main);
  margin:0 0 10px;
}

.hero-card ul{
  margin:0;
  padding-left:1.2em;
}

.hero-card li{
  margin:.35em 0;
  color:var(--sub);
}

.section{
  padding:64px 0;
}

.section--soft{
  background:var(--soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.section h2{
  font-size:clamp(1.55rem, 3vw, 2.15rem);
  line-height:1.35;
  margin:0 0 18px;
  color:#111827;
}

.section h3{
  font-size:1.18rem;
  margin:0 0 10px;
  color:var(--main);
}

.lead{
  color:var(--sub);
  margin:0 0 26px;
}

.grid-2,
.grid-3{
  display:grid;
  gap:20px;
}

.grid-2{
  grid-template-columns:repeat(2, minmax(0,1fr));
}

.grid-3{
  grid-template-columns:repeat(3, minmax(0,1fr));
}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}

.card p:last-child,
.card ul:last-child{
  margin-bottom:0;
}

.card ul{
  padding-left:1.2em;
  margin:10px 0 0;
}

.note{
  font-size:.92rem;
  color:var(--sub);
}

.check-list{
  list-style:none;
  padding:0;
  margin:0;
}

.check-list li{
  position:relative;
  padding-left:1.6em;
  margin:.75em 0;
}

.check-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:0;
  color:var(--accent);
  font-weight:700;
}

.steps{
  counter-reset:step;
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:16px;
}

.steps li{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 18px 18px 60px;
}

.steps li::before{
  counter-increment:step;
  content:counter(step);
  position:absolute;
  left:16px;
  top:16px;
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--main);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
}

.price-box{
  background:#fff7ed;
  border:1px solid #fed7aa;
  border-radius:var(--radius);
  padding:24px;
}

.price-box strong{
  color:var(--danger);
}

.table-wrap{
  overflow-x:auto;
}

table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
  border:1px solid var(--line);
}

th,td{
  padding:14px 12px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}

th{
  background:#f8fafc;
  color:var(--main);
  font-weight:700;
}

.cta{
  background:linear-gradient(135deg, #123c73 0%, #1f4f8e 100%);
  color:#fff;
  border-radius:24px;
  padding:34px;
}

.cta h2,
.cta h3,
.cta p,
.cta a{
  color:#fff;
}

.cta__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:18px;
}

.cta .btn--sub{
  background:#fff;
  color:var(--main);
  border-color:rgba(255,255,255,.4);
}

.office{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}

.footer{
  border-top:1px solid var(--line);
  padding:32px 0 42px;
  color:var(--sub);
  font-size:.95rem;
  background:#fff;
}

.footer small{
  display:block;
  margin-top:8px;
}
.image-block{
  margin:28px 0 0;
}

.image-wide{
  width:100%;
  border-radius:20px;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
}

.image-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:20px;
  margin-top:24px;
}

.image-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow);
}

.image-card img{
  width:100%;
  aspect-ratio:16 / 10;
  object-fit:cover;
}

.image-card__body{
  padding:14px 16px 16px;
}

.image-card__body strong{
  color:var(--main);
}


@media (max-width: 900px){
  .hero__inner,
  .grid-2,
  .grid-3,
  .office{
    grid-template-columns:1fr;
  }

  .site-header__inner{
    flex-direction:column;
    align-items:flex-start;
  }

  .site-contact{
    text-align:left;
  }

  .section{
    padding:52px 0;
  }
}
@media (max-width: 900px){
  .image-grid{
    grid-template-columns:1fr;
  }
}