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

body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: #000;
  background: #fff;
}

/* Header */
.header {
  padding: 32px;
  text-align: center;
}

.logo {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 0.15em;
}

/* Hero */
.hero {
  display: flex;
  justify-content: center;
  padding: 80px 0;
}

.hero img {
  width: 320px;
  object-fit: contain;
}

/* Products */
.products {
display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 80px;

  /* ここがズレ防止 */
  padding: 120px 24px;      /* ← 左右だけ小さくする */
  justify-items: center;    /* ← 中央寄せ */
  max-width: 1100px;
  margin: 0 auto;
}

.product-card {
  text-align: center;
}

.product-card img {
  width: 100%;
  max-width: 260px;
  margin-bottom: 24px;
}

.product-card h2 {
  font-size: 18px;
  font-weight: 400;
  margin-bottom: 8px;
}

.price {
  font-size: 16px;
  margin-bottom: 24px;
}

.buy {
  background: #000;
  color: #fff;
  border: none;
  padding: 14px 32px;
  cursor: pointer;
  letter-spacing: 0.1em;
}

/* Concept */
.concept {
  padding: 160px 40px;
  text-align: center;
  font-size: 16px;
  line-height: 2;
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px;
  font-size: 12px;
}