/* =========================
   Reset
========================= */


/* =========================
   Navigation / ナビバー
========================= */
.nav-bar {
  width: 100%;
  background: #000;
  padding: 12px 0;
}

.nav-bar ul {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-bar a {
  color: #fff;
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  transition: 0.2s;
}

.nav-bar a:hover {
  opacity: 0.7;
}




* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Noto Sans JP", sans-serif;
}

body {
  background: #f5f5f5;
  line-height: 1.6;
}

/* =========================
   Top Banner
========================= */
.top-banner {
  width: 100%;
  max-width: 1200px;
  margin: 20px auto 40px;
}

.top-banner img {
  width: 100%;
  display: block;
  border-radius: 12px;
}

/* =========================
   Section Common
========================= */
.section {
  padding: 60px 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.section-title {
  background: #000;
  color: #fff;
  text-align: center;
  font-size: 32px;
  font-weight: 700;
  padding: 20px 40px;
  margin: 40px auto;
  border-radius: 6px;
  width: fit-content;
}

.title-full {
  width: 100%;
  background: #000;
  color: #fff;
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  padding: 12px 0;
  margin: 40px 0 20px;
}

/* =========================
   Feature List
========================= */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-item img {
  width: 100%;
  border-radius: 10px;
}

.feature-item h3 {
  margin-top: 15px;
  font-size: 22px;
}

.feature-item p {
  margin-top: 8px;
  color: #555;
}

/* =========================
   Product Cards
========================= */
.product-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.product-card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  border: 1px solid #ddd;
  text-align: center;
  transition: 0.25s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.product-card img {
  width: 100%;
  border-radius: 12px;
}

.product-title {
  margin-top: 15px;
  font-size: 20px;
  font-weight: 600;
}

.product-desc {
  margin-top: 8px;
  color: #555;
  font-size: 14px;
}

.btn {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 24px;
  background: #0070c9;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
}

.btn:hover {
  background: #005fa5;
}

/* =========================
   Maintenance Steps
========================= */
.maintitle {
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  margin: 40px 0 20px;
  line-height: 1.6;
}

.maintitle span {
  color: #d00000;
}

.intro {
  text-align: center;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 40px;
  color: #333;
}

.steps-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;

  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.step-box {
  width: 45%;
  min-width: 300px;
}

.step-box img {
  width: 100%;
  max-width: 500px;
  border-radius: 4px;
  margin: 0 auto 15px;
  display: block;
}

/* =========================
   CTA
========================= */
.cta {
  max-width: 1080px;
  margin: 60px auto;
  background: #0070c9;
  color: #fff;
  text-align: center;
  padding: 60px 20px;
  border-radius: 12px;
}

/* =========================
   Footer
========================= */
.footer {
  text-align: center;
  padding: 20px;
  font-size: 13px;
  background: #f5f5f5;
  color: #555;
}

/* =========================
   Responsive
========================= */
@media (max-width: 600px) {
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
}