:root{
  --color-dark: #0F3B44;
  --color-darker: #0A2E36;
  --color-ink: #1E2B2E;
  --color-primary: #028090;
  --color-accent: #02C39A;
  --color-bg-light: #F2F7F7;
  --color-bg-mist: #CFEAE9;
  --color-border: #C7D9DA;
  --color-muted: #5C7278;
  --color-white: #FFFFFF;
  --font-head: Georgia, "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-body: "Hiragino Sans", "Yu Gothic", Arial, sans-serif;
  --radius: 12px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font-body);
  color:var(--color-ink);
  background:var(--color-white);
  line-height:1.8;
}
h1,h2,h3{font-family:var(--font-head);font-weight:700;color:var(--color-darker);margin:0 0 .5em;}
p{margin:0 0 1em;}
a{color:inherit;}
.wrap{max-width:920px;margin:0 auto;padding:0 20px;}
.pc-only{display:inline;}
.sp-only{display:none;}

/* Buttons */
.btn{
  display:inline-block;
  padding:14px 28px;
  border-radius:999px;
  background:var(--color-primary);
  color:var(--color-white);
  text-decoration:none;
  font-weight:700;
  transition:transform .15s ease, background .15s ease;
}
.btn:hover{background:var(--color-darker);transform:translateY(-1px);}
.btn-primary{background:var(--color-accent);color:var(--color-darker);}
.btn-primary:hover{background:#01a884;}
.btn-lg{padding:18px 36px;font-size:1.1rem;}
.btn-block{display:block;width:100%;text-align:center;border:none;cursor:pointer;font-family:var(--font-body);}
.btn-header{padding:10px 20px;font-size:.9rem;}

/* Header */
.site-header{
  position:sticky;top:0;z-index:10;
  background:var(--color-white);
  border-bottom:1px solid var(--color-border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;
}
.logo{font-family:var(--font-head);font-weight:700;font-size:1.3rem;color:var(--color-darker);text-decoration:none;}

/* Hero */
.hero{
  background:linear-gradient(180deg, var(--color-bg-mist) 0%, var(--color-bg-light) 100%);
  padding:64px 0 56px;
  text-align:center;
}
.hero-eyebrow{color:var(--color-primary);font-weight:700;margin-bottom:12px;}
.hero h1{font-size:2.4rem;line-height:1.4;margin-bottom:20px;}
.hero-lead{font-size:1.05rem;color:var(--color-muted);max-width:640px;margin:0 auto 32px;}
.hero-cta{display:flex;flex-direction:column;align-items:center;gap:10px;}
.hero-note{font-size:.9rem;color:var(--color-primary);font-weight:700;}

/* Sections */
.section{padding:64px 0;}
.section-title{font-size:1.7rem;text-align:center;margin-bottom:32px;}
.section-lead{text-align:center;color:var(--color-muted);max-width:680px;margin:0 auto 32px;}
.section-worry{background:var(--color-white);}
.section-why{background:var(--color-bg-light);}
.section-service{background:var(--color-white);}
.section-case{background:var(--color-bg-light);}
.section-price{background:var(--color-white);}
.section-diagnosis{background:var(--color-bg-mist);}
.section-faq{background:var(--color-white);}
.section-final-cta{background:var(--color-darker);text-align:center;}
.section-final-cta h2{color:var(--color-white);}

/* Worry list */
.worry-list{list-style:none;padding:0;max-width:680px;margin:0 auto 24px;}
.worry-list li{
  position:relative;
  padding:14px 20px 14px 44px;
  margin-bottom:12px;
  background:var(--color-bg-light);
  border-radius:var(--radius);
  border-left:4px solid var(--color-primary);
}
.worry-list li::before{
  content:"?";
  position:absolute;left:16px;top:12px;
  font-family:var(--font-head);
  font-weight:700;
  color:var(--color-primary);
  font-size:1.2rem;
}
.worry-target{text-align:center;font-weight:700;color:var(--color-primary);}

/* Why grid */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.why-card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius);padding:24px;}
.why-tag{color:var(--color-primary);font-weight:700;margin-bottom:8px;}

/* Service grid */
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.service-card{
  background:var(--color-bg-light);
  border-radius:var(--radius);
  padding:24px;
}
.service-card h3{font-size:1.1rem;color:var(--color-primary);}

/* Case */
.case-card{
  background:var(--color-white);
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  padding:32px;
  max-width:720px;
  margin:0 auto;
}
.case-name{font-weight:700;color:var(--color-darker);margin-bottom:12px;}

/* Price */
.price-card{
  max-width:420px;
  margin:0 auto;
  background:var(--color-bg-light);
  border:2px solid var(--color-accent);
  border-radius:var(--radius);
  padding:36px 28px;
  text-align:center;
}
.price-badge{
  display:inline-block;
  background:var(--color-accent);
  color:var(--color-darker);
  font-weight:700;
  font-size:.85rem;
  padding:4px 14px;
  border-radius:999px;
  margin-bottom:12px;
}
.price-strike{color:var(--color-muted);text-decoration:line-through;font-size:.95rem;}
.price-main{margin-bottom:20px;}
.price-num{font-family:var(--font-head);font-size:3rem;font-weight:700;color:var(--color-primary);}
.price-unit{font-size:1.1rem;color:var(--color-muted);}
.price-includes{list-style:none;padding:0;text-align:left;margin-bottom:20px;}
.price-includes li{padding:6px 0 6px 24px;position:relative;}
.price-includes li::before{content:"✓";position:absolute;left:0;color:var(--color-accent);font-weight:700;}
.price-note{font-size:.9rem;color:var(--color-muted);margin-bottom:20px;}

/* Diagnosis steps */
.diagnosis-steps{list-style:none;padding:0;max-width:680px;margin:0 auto 40px;}
.diagnosis-steps li{display:flex;gap:16px;margin-bottom:24px;align-items:flex-start;}
.step-num{
  flex:0 0 auto;
  width:36px;height:36px;
  border-radius:50%;
  background:var(--color-primary);
  color:var(--color-white);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;
  font-family:var(--font-head);
}
.diagnosis-steps h3{font-size:1.05rem;margin-bottom:4px;}
.diagnosis-steps p{margin:0;color:var(--color-muted);}

/* Form */
.contact-form{
  max-width:560px;
  margin:0 auto;
  background:var(--color-white);
  border-radius:var(--radius);
  padding:32px;
  border:1px solid var(--color-border);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-weight:700;margin-bottom:6px;font-size:.95rem;}
.req{color:#c0392b;font-size:.75rem;margin-left:6px;font-weight:700;}
.form-row input,.form-row textarea{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--color-border);
  border-radius:8px;
  font-family:var(--font-body);
  font-size:1rem;
}
.form-row input:focus,.form-row textarea:focus{outline:2px solid var(--color-accent);}
.form-note{font-size:.8rem;color:var(--color-muted);text-align:center;margin-top:14px;margin-bottom:0;}
.form-success{
  max-width:560px;
  margin:20px auto 0;
  background:var(--color-bg-mist);
  border-radius:var(--radius);
  padding:20px;
  text-align:center;
  font-weight:700;
}

/* FAQ */
.faq-list{max-width:680px;margin:0 auto;}
.faq-item{
  background:var(--color-bg-light);
  border-radius:var(--radius);
  padding:6px 20px;
  margin-bottom:12px;
}
.faq-item summary{
  cursor:pointer;
  font-weight:700;
  padding:14px 0;
}
.faq-item p{padding-bottom:14px;color:var(--color-muted);}

/* Final CTA */
.section-final-cta .btn{margin-top:12px;}

/* Footer */
.site-footer{
  background:var(--color-ink);
  color:var(--color-bg-light);
  padding:32px 0;
  font-size:.85rem;
}
.site-footer p{color:var(--color-bg-mist);}
.copyright{color:var(--color-muted);margin-bottom:0;}

/* Responsive */
@media (max-width: 700px){
  .pc-only{display:none;}
  .sp-only{display:inline;}
  .hero h1{font-size:1.9rem;}
  .why-grid,.service-grid{grid-template-columns:1fr;}
  .section{padding:48px 0;}
}