body {
  font-family: 'Noto Sans JP', 'Montserrat', Arial, sans-serif;
  background: linear-gradient(120deg, #f7fcff 0%, #e3f0ff 100%);
  color: #222;
  margin: 0;
  min-height: 100vh;
}
.container {
  max-width: 740px;
  margin: 0 auto;
  padding: 0 16px 24px 16px;
}

/* ==== HERO & HEADER ==== */
header.hero {
  background: linear-gradient(100deg, #0a2540 60%, #14b8a6 100%);
  color: #fff;
  border-radius: 0 0 24px 24px;
  text-align: center;
  padding: 3em 1em 2em 1em;
  box-shadow: 0 4px 24px rgba(20,184,166,0.08);
  position: relative;
  overflow: hidden;
}
header.hero h1 {
  font-family: 'Montserrat', 'Noto Sans JP', Arial, sans-serif;
  font-size: 2.4em;
  font-weight: 700;
  margin-bottom: 0.6em;
  letter-spacing: 0.03em;
}
.logo-gradient {
  background: linear-gradient(90deg, #14b8a6 20%, #ffe066 80%);
  color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
  font-size: 1.1em;
  font-weight: 700;
}
.sub {
  font-size: 1.17em;
  margin-bottom: 0.7em;
}
.campaign {
  color: #ffe066;
  font-weight: bold;
  font-size: 1.05em;
  background: rgba(255,152,0,0.12);
  padding: 0.3em 1.2em;
  border-radius: 20px;
  display: inline-block;
  margin-top: 0.4em;
}
.kpi {
  display: flex;
  gap: 1em;
  justify-content: center;
  font-size: 1.1em;
  margin-bottom: 1.2em;
}
.kpi span {
  background: #fffdfa;
  color: #14b8a6;
  border-radius: 14px;
  padding: 0.3em 1em;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(20,184,166,0.08);
}
.price-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  margin-bottom: 1.5em;
  margin-top: 0.5em;
}
.price-label {
  font-size: 1.05em;
  color: #fff;
  background: #14b8a6;
  padding: 0.3em 1em;
  border-radius: 16px;
  font-weight: bold;
  letter-spacing: 0.03em;
}
.price-original {
  font-size: 1.25em;
  color: #fff;
  text-decoration: line-through;
  opacity: 0.8;
  margin-left: 0.2em;
}
.price-arrow {
  font-size: 1.5em;
  color: #ffe066;
  font-weight: bold;
}
.price-special {
  display: flex;
  flex-direction: column;
  align-items: start;
  margin-left: 0.3em;
}
.price-highlight {
  color: #ff9800;
  font-size: 0.98em;
  font-weight: bold;
  margin-bottom: -0.3em;
}
.price-big {
  font-size: 1.8em;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(90deg, #ff9800 60%, #ffe066 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  margin-bottom: -0.1em;
}
.price-off {
  color: #ffe066;
  font-size: 1em;
  font-weight: 700;
  margin-top: -0.3em;
}
.note {
  font-size: 0.97em;
  color: #ffe066;
  margin-top: 1.3em;
  background: rgba(255,152,0,0.12);
  border-radius: 18px;
  padding: 0.25em 1em;
  display: inline-block;
}

/* ==== BUTTON ==== */
.cta-btn {
  background: linear-gradient(90deg, #ff9800 60%, #ffe066 100%);
  color: #0a2540;
  font-size: 1.19em;
  padding: 1em 2.8em;
  border-radius: 32px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 2px 12px rgba(0,0,0,0.09);
  transition: background 0.2s, box-shadow 0.15s, transform 0.17s;
  display: inline-block;
  margin: 1.1em 0 0.2em 0;
  border: none;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 1;
}
.cta-btn:hover,
.cta-btn:focus {
  background: linear-gradient(90deg, #e65100 60%, #ffe066 100%);
  transform: translateY(-2px) scale(1.04);
  color: #fff;
  box-shadow: 0 6px 24px rgba(255,152,0,0.10);
}
.pulse {
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,152,0,0.20); }
  70% { box-shadow: 0 0 0 12px rgba(255,152,0,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,152,0,0); }
}

/* ==== CARD ==== */
.card, .card-float {
  background: #fff;
  border-radius: 16px;
  margin: 2em 0;
  padding: 2em 1.5em 1.3em 1.5em;
  box-shadow: 0 4px 20px rgba(20,184,166,0.07), 0 1px 10px rgba(0,0,0,0.03);
  position: relative;
}
.card-float {
  margin-top: 1.5em;
  margin-bottom: 2.5em;
  padding-top: 2.7em;
}

/* ==== SECTIONS ==== */
section h2 {
  color: #0a2540;
  font-size: 1.23em;
  margin-bottom: 1.1em;
  font-weight: 700;
  letter-spacing: 0.01em;
  border-left: 6px solid #14b8a6;
  padding-left: 0.5em;
  background: linear-gradient(90deg, #e3f0ff 60%, #fff 100%);
  border-radius: 8px;
  display: inline-block;
}
.before-after {
  display: flex;
  align-items: center;
  gap: 2em;
  justify-content: center;
}
.before, .after {
  flex: 1;
  background: #f0f8ff;
  border-radius: 12px;
  padding: 1.2em 1em;
  min-width: 120px;
  box-shadow: 0 2px 8px rgba(20,184,166,0.04);
}
.before h3, .after h3 {
  color: #14b8a6;
  margin-bottom: 0.7em;
  font-size: 1em;
  letter-spacing: 0.02em;
}
.arrow {
  min-width: 34px;
  text-align: center;
  padding-top: 1em;
}
ul {
  padding-left: 1.2em;
  line-height: 2.1;
  font-size: 1.03em;
  margin-bottom: 0.5em;
}
.join ul {
  margin-bottom: 1em;
}

/* ==== FAQ ==== */
.faq dl {
  margin: 0;
}
.faq dl dt {
  font-weight: bold;
  margin-top: 1.1em;
  color: #14b8a6;
  font-size: 1em;
  letter-spacing: 0.01em;
}
.faq dl dd {
  margin-left: 1.2em;
  margin-bottom: 0.6em;
  font-size: 1em;
  color: #222;
}

/* ==== SNS ==== */
.sns {
  text-align: center;
  margin-top: 2em;
  margin-bottom: 1em;
}
.social-link {
  background: #f0f8ff;
  color: #0a2540;
  border-radius: 16px;
  padding: 0.5em 1.4em;
  margin: 0 0.4em;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.07em;
  box-shadow: 0 2px 8px rgba(20,184,166,0.08);
  transition: background 0.2s, color 0.2s;
  display: inline-block;
}
.social-link:hover {
  background: #14b8a6;
  color: #fff;
}

/* ==== FOOTER ==== */
footer {
  background: #0a2540;
  color: #fff;
  text-align: center;
  padding: 1.2em 0;
  font-size: 0.97em;
  border-radius: 20px 20px 0 0;
  margin-top: 2.5em;
}
footer a {
  color: #ffe066;
  text-decoration: underline;
  margin: 0 0.6em;
}

/* ==== RESPONSIVE ==== */
@media (max-width: 600px) {
  header.hero h1 {
    font-size: 1.3em;
  }
  .container {
    padding: 0 2px 20px 2px;
  }
  .card, .card-float {
    padding: 1.2em 4px 1em 4px;
  }
  .before-after {
    flex-direction: column;
    gap: 0.7em;
  }
  .kpi {
    flex-direction: column;
    gap: 0.5em;
    font-size: 1em;
  }
  .cta-btn {
    font-size: 1em;
    padding: 0.7em 1.5em;
  }
  .price-box {
    flex-direction: column;
    gap: 0.2em;
  }
}