* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color: #333;
  line-height: 1.7;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 16px 0;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: #2563eb;
  text-decoration: none;
}

.btn-header {
  background: #2563eb;
  color: #fff;
  padding: 8px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.btn-header:hover {
  background: #1d4ed8;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  padding: 100px 0;
  text-align: center;
}

.hero h2 {
  font-size: 2.4rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 36px;
}

/* Buttons */
.btn-primary {
  display: inline-block;
  background: #fff;
  color: #2563eb;
  padding: 14px 36px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform 0.1s;
}

.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  background: #2563eb;
  color: #fff;
  padding: 12px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
}

.btn-secondary:hover {
  background: #1d4ed8;
}

/* Features */
.features {
  padding: 80px 0;
  background: #f8fafc;
}

.features h3 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: #fff;
  padding: 32px 24px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.feature-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.feature-card h4 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: #666;
}

/* CTA */
.cta {
  padding: 80px 0;
  text-align: center;
}

.cta h3 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.cta p {
  color: #666;
  margin-bottom: 32px;
}

.cta .btn-primary {
  background: #2563eb;
  color: #fff;
}

/* Form */
.form-section {
  padding: 60px 0;
  background: #f8fafc;
  min-height: calc(100vh - 140px);
}

.form-wrapper {
  max-width: 560px;
  margin: 0 auto;
  background: #fff;
  padding: 48px 40px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.form-wrapper h2 {
  margin-bottom: 8px;
}

.form-wrapper > p {
  color: #666;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

.required {
  color: #ef4444;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-section .btn-primary {
  width: 100%;
  background: #2563eb;
  color: #fff;
  padding: 14px;
  font-size: 1rem;
  margin-top: 8px;
}

/* Thanks */
.thanks-section {
  padding: 100px 0;
  text-align: center;
  min-height: calc(100vh - 140px);
  display: flex;
  align-items: center;
}

.thanks-wrapper {
  max-width: 500px;
  margin: 0 auto;
}

.thanks-icon {
  font-size: 3rem;
  margin-bottom: 24px;
}

.thanks-section h2 {
  margin-bottom: 16px;
  font-size: 1.6rem;
}

.thanks-section p {
  color: #666;
  margin-bottom: 32px;
}

/* Footer */
footer {
  background: #f1f5f9;
  padding: 24px 0;
  text-align: center;
  color: #94a3b8;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h2 { font-size: 1.6rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .form-wrapper { padding: 32px 24px; }
}