*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --navy: #0A2A4A;
  --blue: #1A6B9A;
  --blue-light: #4A9CC4;
  --white: #FFFFFF;
  --gray: #5E7A8A;
  --bg: #F0F7FB;
}
body { font-family: 'Noto Sans JP', sans-serif; color: var(--navy); font-size: 17px; line-height: 1.8; }
nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 48px; height: 68px; background: white;
  border-bottom: 1px solid #e5e5e5; position: sticky; top: 0; z-index: 100;
}
.nav-left { display: flex; flex-direction: column; }
.nav-tagline { font-size: 12px; color: #888; line-height: 1; margin-bottom: 4px; }
.logo { font-family: 'Barlow', sans-serif; font-size: 22px; font-weight: 700; letter-spacing: 2px; color: var(--navy); text-decoration: none; }
.logo span { color: var(--blue); }
.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a { text-decoration: none; color: #333; font-size: 15px; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--blue); }
.nav-cta { background: var(--blue); color: white !important; padding: 12px 24px; font-size: 15px; font-weight: 700; text-decoration: none; height: 68px; display: flex; align-items: center; transition: background 0.2s; }
.nav-cta:hover { background: #155a82; }

.service-hero {
  padding: 110px 72px 90px;
  color: white;
  position: relative;
  overflow: hidden;
}
.service-hero::after {
  content: '';
  position: absolute; right: -60px; top: 50%; transform: translateY(-50%);
  width: 400px; height: 520px;
  background-image: none;
  background-size: contain; background-repeat: no-repeat;
  opacity: 0.08; mix-blend-mode: screen;
}
.service-hero-content { position: relative; z-index: 1; max-width: 700px; }
.service-num { font-family: 'Barlow', sans-serif; font-size: 14px; letter-spacing: 3px; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.service-hero h1 { font-size: 56px; font-weight: 900; line-height: 1.2; margin-bottom: 24px; }
.service-hero-desc { font-size: 20px; color: rgba(255,255,255,0.85); line-height: 2; }

.service-body { max-width: 1000px; margin: 0 auto; padding: 90px 48px; }
.service-intro { margin-bottom: 80px; }
.service-intro h2, .service-detail h2 { font-size: 34px; font-weight: 700; color: var(--navy); margin-bottom: 36px; }
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pain-item { background: var(--bg); padding: 22px 28px; border-radius: 8px; font-size: 18px; color: var(--navy); border-left: 3px solid var(--blue); line-height: 1.7; }

.detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.detail-card { background: white; border: 1px solid #E2EBF0; border-radius: 12px; padding: 36px 28px; text-align: center; }
.detail-icon { margin-bottom: 20px; }
.detail-card h3 { font-size: 20px; font-weight: 700; color: var(--navy); margin-bottom: 14px; }
.detail-card p { font-size: 16px; color: var(--gray); line-height: 1.85; }

.service-tags-section { display: flex; flex-wrap: wrap; gap: 10px; margin: 52px 0; }
.tag { font-size: 14px; color: var(--blue); background: #EBF5FB; padding: 7px 18px; border-radius: 4px; }

.service-cta { background: var(--navy); border-radius: 14px; padding: 56px; text-align: center; margin-top: 56px; }
.service-cta p { color: rgba(255,255,255,0.75); font-size: 19px; margin-bottom: 28px; }
.btn-fill { background: var(--blue); color: white; padding: 18px 48px; font-size: 17px; font-weight: 700; text-decoration: none; border-radius: 4px; display: inline-block; transition: background 0.2s; }
.btn-fill:hover { background: #155a82; }

.service-nav-btns { display: flex; justify-content: space-between; align-items: center; padding: 36px 72px; border-top: 1px solid #E2EBF0; }
.btn-next { color: var(--blue); font-size: 16px; font-weight: 700; text-decoration: none; }
.btn-next:hover { opacity: 0.7; }
.btn-prev { color: var(--blue); font-size: 16px; font-weight: 700; text-decoration: none; }
.btn-prev:hover { opacity: 0.7; }

footer { background: var(--navy); padding: 36px 72px; display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-family: 'Barlow', sans-serif; font-size: 18px; font-weight: 700; letter-spacing: 3px; color: white; }
.footer-logo span { color: var(--blue-light); }
footer p { font-size: 14px; color: rgba(255,255,255,0.35); }

.detail-icon svg { width: 56px; height: 56px; stroke: #0A2A4A; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }