html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: #222;
  background: #fff;
  line-height: 1.7;
}

body {
  padding-top: 70px;
}


img {
  max-width: 100%;
  display: block;
}

h1, h2, h3, h4 {
  margin: 0;
}

/* Header */
/* Fixed Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #ffffff;
  z-index: 1000;
  padding: 16px 32px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}


.logo {
  width: 80%;
  max-width: 250px;
}

/* Hero */
.hero {
  background: #ff5a00;
  color: #fff;
  padding: 80px 24px;
}

.hero-inner {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: 48px;
  font-weight: 700;
}

.hero-lead {
  font-size: 32px;
  font-weight: 700;
  margin: 24px 0;
}

.hero-desc {
  font-size: 16px;
  opacity: 0.9;
}

/* Section */
.section {
  padding: 96px 24px;
}

.section-gray {
  background: #f6f7f8;
}

.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
}

.section-subtitle {
  text-align: center;
  font-size: 16px;
  color: #666;
  margin-top: 16px;
}

/* Tabs */
.tabs {
  margin: 48px auto 32px;
  display: flex;
  justify-content: center;
  gap: 32px;
}

.tab {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab.active {
  border-color: #ff5a00;
  font-weight: 600;
}

/* Tab contents */
.tab-contents {
  position: relative;
  max-width: 1100px;
  margin: auto;
  min-height: 420px;
}

.tab-content {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(24px);
  pointer-events: none;
  transition: 0.6s ease;
}

.tab-content.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.content-card {
  background: #fff;
  padding: 40px;
  border-radius: 12px;
}

/* Feature */
.feature-list {
  max-width: 1100px;
  margin: 64px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-item {
  background: #f6f7f8;
  padding: 32px;
  border-radius: 12px;
  text-align: center;
}

/* Pricing */
.pricing-note {
  text-align: center;
  margin-top: 40px;
}

.pricing-link {
  padding: 12px 32px;
  border: 1px solid #ff5a00;
  border-radius: 24px;
  color: #ff5a00;
  text-decoration: none;
  font-weight: 600;
}

.pricing-link:hover {
  background: #ff5a00;
  color: #ffffff;
}

/* FAQ */
.faq-list {
  max-width: 1100px;
  margin: 64px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Contact */
.contact-list {
  max-width: 1100px;
  margin: 64px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

/* Footer */
.footer {
  padding: 40px;
  text-align: center;
  color: #888;
}

/* Fade */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-inner,
  .content-grid,
  .feature-list,
  .faq-list,
  .contact-list {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 36px;
  }
}

/* Contact Icons */
.contact-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  object-fit: contain;
}

/* FAQ vertical bar */
.faq-item {
  position: relative;
  padding-left: 16px;
}

.faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: #ddd;
  border-radius: 2px;
}