:root {
  --primary-color: #1a365d;
  --accent-color: #c5a47e;
  --text-color: #333;
  --bg-light: #f9f9f9;
  --white: #ffffff;
}

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

body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", Meiryo, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background-color: var(--white);
  padding: 20px 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-weight: bold;
  font-size: 2rem;
  color: var(--primary-color);
  letter-spacing: 0.05em;
}

.logo img {
  height: 60px;
}

.header-buttons {
  display: flex;
  gap: 15px;
  align-items: center;
}

.btn-header {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: all 0.3s;
}

.btn-header:hover {
  background-color: #0f2a4a;
}

.btn-header-sub {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: bold;
  padding: 8px 15px;
  border: 1px solid var(--primary-color);
  border-radius: 4px;
  transition: all 0.3s;
}

.btn-header-sub:hover {
  background-color: #f0f4f8;
}

/* Hero Section */
.hero {
  background-color: var(--bg-light);
  padding: 160px 0 100px;
  text-align: center;
}

.hero-catchcopy {
  font-size: 1rem;
  color: var(--accent-color);
  margin-bottom: 15px;
  letter-spacing: 0.15em;
  font-weight: 500;
}

.hero h1 {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.9;
  margin-bottom: 30px;
}

.hero-description strong {
  color: var(--accent-color);
  font-weight: 700;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 40px;
}

.hero-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-benefit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(197, 164, 126, 0.1);
  padding: 12px 20px;
  border-radius: 8px;
}

.hero-benefit-item .benefit-icon {
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1.2rem;
}

.hero-benefit-item span:last-child {
  font-size: 0.95rem;
  font-weight: 500;
}

.hero-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Problems Section */
.problems {
  padding: 80px 0;
  background-color: var(--white);
  text-align: center;
}

.section-title {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 50px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--accent-color);
  margin: 15px auto 0;
}

.problem-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 30px;
}

.problem-item {
  background-color: var(--bg-light);
  padding: 30px;
  border-radius: 8px;
  width: 300px;
  text-align: left;
}

.problem-item h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 10px;
  display: inline-block;
}

/* Solution Section */
.solution {
  padding: 80px 0;
  background-color: var(--primary-color);
  color: var(--white);
  text-align: center;
}

.solution h2 {
  font-size: 2.5rem;
  margin-bottom: 30px;
}

.solution p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 40px;
}

/* Features Section */
.features {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.feature-item {
  display: flex;
  align-items: center;
  margin-bottom: 60px;
  gap: 40px;
}

.feature-item:nth-child(even) {
  flex-direction: row-reverse;
}

.feature-text {
  flex: 1;
}

.feature-text h3 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.feature-text p {
  font-size: 1.1rem;
}

.feature-image {
  flex: 1;
}

.feature-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* CTA Section */
.cta {
  padding: 100px 0;
  background-color: var(--white);
  text-align: center;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-top: 30px;
}

.cta-box {
  background-color: var(--white);
  padding: 60px;
  border-radius: 10px;
  border: none;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(26, 54, 93, 0.15);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: linear-gradient(
    to right,
    var(--primary-color),
    var(--accent-color)
  );
}

.cta h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.price {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
  margin: 30px 0;
}

.btn-cta {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--white);
  font-size: 1.5rem;
  font-weight: bold;
  padding: 25px 40px;
  border-radius: 50px;
  text-decoration: none;
  transition: transform 0.2s;
  box-shadow: 0 10px 25px rgba(197, 164, 126, 0.5);
  width: 100%;
  max-width: 450px;
}

.btn-cta:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(197, 164, 126, 0.6);
}

.btn-cta-sub {
  display: inline-block;
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: 18px 40px;
  border-radius: 50px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s;
  width: 100%;
  max-width: 450px;
  font-size: 1.1rem;
}

.btn-cta-sub:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* Contact Section */
.contact {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.contact .contact-info {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 40px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.contact .contact-email-label {
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-color);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
}

.contact .contact-email {
  color: var(--accent-color);
  font-size: 1.8rem;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s;
  letter-spacing: 0.02em;
}

.contact .contact-email:hover {
  opacity: 0.7;
}

.contact-form-wrapper {
  position: relative;
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary-color);
  font-size: 0.95rem;
}

.required {
  color: #e53e3e;
  font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s;
  background-color: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(197, 164, 126, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  margin-top: 4px;
  cursor: pointer;
  width: 18px;
  height: 18px;
}

.checkbox-label span {
  font-size: 0.95rem;
  color: var(--text-color);
}

.form-submit {
  margin-top: 30px;
  text-align: center;
}

.btn-submit {
  background: linear-gradient(135deg, var(--accent-color) 0%, #d4a574 100%);
  color: var(--white);
  font-size: 1.2rem;
  font-weight: bold;
  padding: 18px 60px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 10px 25px rgba(197, 164, 126, 0.3);
  width: 100%;
  max-width: 400px;
}

.btn-submit:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(197, 164, 126, 0.4);
}

.btn-submit:active {
  transform: translateY(-1px);
}

.form-message {
  margin-top: 20px;
  padding: 15px 20px;
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
}

.form-message.success {
  background-color: #c6f6d5;
  color: #22543d;
  border: 1px solid #9ae6b4;
}

.form-message.error {
  background-color: #fed7d7;
  color: #742a2a;
  border: 1px solid #fc8181;
}

.contact-info {
  animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 40px 0;
  text-align: center;
}

/* Tablet */
@media (max-width: 1024px) {
  .container {
    padding: 0 30px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .feature-item {
    gap: 30px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  /* Header */
  header {
    padding: 15px 0;
  }

  .logo {
    font-size: 1.5rem;
  }

  .btn-header {
    padding: 8px 16px;
    font-size: 0.9rem;
  }

  /* Hero */
  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 2rem;
    line-height: 1.3;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-description {
    font-size: 1rem !important;
  }

  .hero-catchcopy {
    font-size: 0.85rem !important;
  }

  .hero-benefits {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .hero-benefit-item {
    padding: 10px 15px !important;
  }

  .hero-benefit-item span:last-child {
    font-size: 0.85rem !important;
  }

  /* Problems */
  .problems {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
  }

  .problem-list {
    gap: 20px;
  }

  .problem-item {
    width: 100%;
    padding: 25px;
  }

  .problem-item h3 {
    font-size: 1.2rem;
  }

  .problem-item p {
    font-size: 0.95rem;
  }

  .problem-icon {
    font-size: 2rem !important;
  }

  .problem-message p {
    font-size: 1.3rem !important;
  }

  .problem-message p:last-child {
    font-size: 1rem !important;
  }

  /* Authority */
  .authority {
    padding: 60px 0;
  }

  .authority-content {
    padding: 25px 20px !important;
  }

  .authority-content p {
    font-size: 0.95rem !important;
  }

  .authority-logos {
    flex-direction: column !important;
    gap: 20px !important;
  }

  /* Solution */
  .solution {
    padding: 60px 0;
  }

  .solution h2 {
    font-size: 1.8rem;
  }

  .solution p {
    font-size: 1rem;
  }

  .solution-features {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .solution-card {
    padding: 25px 20px !important;
  }

  .solution-card h3 {
    font-size: 1.1rem !important;
  }

  .solution-icon {
    font-size: 2.5rem !important;
  }

  /* Features */
  .features {
    padding: 60px 0;
  }

  .feature-item,
  .feature-item:nth-child(even) {
    flex-direction: column;
    margin-bottom: 40px;
    gap: 20px;
  }

  .feature-text h3 {
    font-size: 1.3rem;
  }

  .feature-text p {
    font-size: 1rem;
  }

  .feature-points {
    padding: 15px !important;
  }

  .feature-points ul {
    font-size: 0.9rem;
    padding-left: 15px !important;
  }

  .feature-points p {
    font-size: 0.95rem !important;
  }

  /* Voice */
  .voice {
    padding: 60px 0;
  }

  .voice-list {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .voice-item {
    padding: 20px !important;
  }

  .voice-text {
    font-size: 0.95rem !important;
  }

  /* FAQ */
  .faq {
    padding: 60px 0;
  }

  .faq-item {
    padding: 15px 0 !important;
  }

  .faq-question {
    font-size: 0.95rem !important;
  }

  .faq-answer {
    font-size: 0.85rem !important;
    padding-left: 10px !important;
  }

  /* CTA */
  .cta {
    padding: 60px 0;
  }

  .cta-box {
    padding: 30px 20px;
  }

  .cta h2 {
    font-size: 1.8rem;
  }

  .cta p {
    font-size: 1rem;
  }

  .cta-benefits {
    grid-template-columns: 1fr 1fr !important;
    gap: 15px !important;
    margin: 30px 0 !important;
  }

  .cta-benefit {
    padding: 15px !important;
  }

  .cta-benefit div:first-child {
    font-size: 1.5rem !important;
  }

  .cta-benefit div:last-child {
    font-size: 0.85rem !important;
  }

  .price {
    font-size: 1.5rem;
  }

  .btn-cta {
    font-size: 1.2rem;
    padding: 18px 30px;
    width: 100%;
  }

  .cta-guarantee {
    padding: 20px !important;
  }

  .cta-guarantee p:first-child {
    font-size: 1rem !important;
  }

  .cta-guarantee p:last-child {
    font-size: 0.85rem !important;
  }

  /* Contact */
  .contact {
    padding: 60px 0;
  }

  .google-form-wrapper {
    padding: 20px 15px !important;
  }

  .google-form-wrapper iframe {
    height: 1000px !important;
  }

  .form-note {
    padding: 15px !important;
  }

  .form-note p {
    font-size: 0.85rem !important;
  }

  .contact-info {
    padding: 25px 20px !important;
  }

  .contact-info h3 {
    font-size: 1.1rem !important;
  }

  /* Footer */
  footer {
    padding: 30px 0;
    font-size: 0.9rem;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .logo {
    font-size: 1.3rem;
  }

  .btn-header {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero-description {
    font-size: 0.9rem !important;
  }

  .hero-benefits {
    gap: 8px !important;
  }

  .section-title {
    font-size: 1.3rem;
  }

  .problem-item {
    padding: 20px;
  }

  .problem-message p {
    font-size: 1.1rem !important;
  }

  .solution h2 {
    font-size: 1.5rem;
  }

  .solution p {
    font-size: 0.95rem;
  }

  .cta-benefits {
    grid-template-columns: 1fr !important;
  }

  .cta h2 {
    font-size: 1.5rem;
  }

  .btn-cta {
    font-size: 1.1rem;
    padding: 16px 25px;
  }
}