:root {
    --primary: #1a56db;
    --primary-dark: #1e429f;
    --secondary: #6b7280;
    --dark: #111827;
    --light: #f9fafb;
    --white: #ffffff;
    --font: 'Noto Sans JP', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); color: var(--dark); line-height: 1.6; background: var(--white); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.max-600 { max-width: 600px; }
.section { padding: 80px 0; }
.bg-light { background: var(--light); }
.bg-dark { background: var(--dark); color: var(--white); }
.text-center { text-align: center; }
.text-white { color: var(--white); }
.hidden { display: none !important; }

.header { height: 80px; display: flex; align-items: center; border-bottom: 1px solid #e5e7eb; sticky top: 0; background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); z-index: 1000; position: sticky; top: 0; }
.header .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.nav a { text-decoration: none; color: var(--dark); margin-left: 25px; font-weight: 500; transition: 0.3s; }
.nav a:hover { color: var(--primary); }

.hero { padding: 120px 0; color: var(--white); background-size: cover; background-position: center; text-align: center; }
.hero h1 { font-size: 3.5rem; font-weight: 900; line-height: 1.2; margin-bottom: 25px; }
.hero p { font-size: 1.25rem; max-width: 800px; margin: 0 auto 40px; }
.trust-strip { display: flex; justify-content: center; gap: 30px; margin-top: 50px; font-weight: 600; opacity: 0.9; }

.btn { display: inline-block; padding: 15px 35px; border-radius: 8px; font-weight: 700; text-decoration: none; transition: 0.3s; cursor: pointer; border: none; }
.btn-primary, .btn { background: var(--primary); color: var(--white); }
.btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
.btn-sm { padding: 10px 20px; font-size: 0.9rem; }
.btn-lg { padding: 20px 50px; font-size: 1.2rem; }
.btn-full { width: 100%; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }

.grid { display: grid; gap: 30px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card { background: var(--white); padding: 40px; border-radius: 12px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); transition: 0.3s; }
.card:hover { transform: translateY(-10px); }
.card .icon { font-size: 3rem; margin-bottom: 20px; display: block; }
.card h3 { margin-bottom: 15px; font-size: 1.4rem; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-top: 50px; }
.step { text-align: center; }
.step-num { width: 60px; height: 60px; background: var(--primary); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.5rem; font-weight: 800; }

.service-item { border-radius: 12px; overflow: hidden; background: #1f2937; display: flex; flex-direction: column; }
.service-item img { width: 100%; height: 250px; object-fit: cover; }
.service-content { padding: 30px; }
.service-content h3 { margin-bottom: 10px; color: var(--white); }

.faq details { background: var(--white); border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 15px; }
.faq summary { padding: 20px; cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::after { content: '+'; font-size: 1.5rem; }
.faq details[open] summary::after { content: '-'; }
.faq p { padding: 0 20px 20px; color: var(--secondary); }

.form-container { background: var(--white); padding: 50px; border-radius: 15px; box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; }
.form-group input { width: 100%; padding: 12px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 1rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-consent { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 25px; font-size: 0.9rem; }
.form-consent input { margin-top: 4px; }

.footer { background: #111827; color: #9ca3af; padding: 80px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
.footer h4 { color: var(--white); margin-bottom: 20px; }
.footer-nav a { display: block; color: #9ca3af; text-decoration: none; margin-bottom: 10px; }
.footer-bottom { border-top: 1px solid #374151; padding-top: 30px; text-align: center; font-size: 0.85rem; }

.cookie-banner { position: fixed; bottom: 20px; left: 20px; right: 20px; background: var(--dark); color: var(--white); padding: 25px; border-radius: 12px; z-index: 9999; display: flex; flex-direction: column; gap: 15px; }
.cookie-btns { display: flex; gap: 10px; }

@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .nav { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
}