/* 全体 */
body {
  font-family: "Inter", "Hiragino Sans", "Noto Sans JP", sans-serif;
  margin: 0;
  padding: 0;
  background: #e9f3ff;
  color: #333;
  line-height: 1.7;
}

/* ヒーロー */
.hero {
  text-align: center;
  padding: 10px 10px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.75), rgba(255,255,255,0.85)),
    url("../images/th.webp");
  background-size: cover;
  background-position: center;
  position: relative;
}
.hero-icon {
  width: 130px;
  height: 130px;
  margin: 0 auto 2px;
  border: 0.5px solid #fff;
  border-radius: 50%;
  overflow: hidden;
}

.hero-icon img {
  width: 110%;
  height: 110%;
  object-fit: cover;
  transform: translate(-5%, -5%);
}

.hero h1 {
  margin: 0;
  font-size: 2.6rem;
  font-weight: 400;
  letter-spacing: 1px;
  margin-bottom: 3px;
}

.hero .sub {
  font-size: 1.1rem;
  color: #555;
  margin-top: 0;
}

/* ボタン */
.btn-area {
  margin-top: 25px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background: #4a8fff;
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.2s;
}

.btn:hover {
  background: #2f6fe0;
  transform: translateY(-2px);
}

/* セクション */
.section {
  padding: 10px 10px;
  max-width: 900px;
  margin: 0 auto;
}

.section h2 {
  font-size: 1.8rem;
  margin-bottom: 0;
  text-align: center;
}

/* ブランド紹介 */
.about {
  background: #f9fbff;
  border-radius: 12px;
  padding: 50px 35px;
  margin-top: 40px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.about p {
  margin-bottom: 20px;
}

.about-list {
  margin: 0 0 20px 0;
  padding-left: 1em;
  color: #444;
}

/* リンクカード */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 15px;
}

.link-card {
  display: block;
  padding: 18px;
  background: #ffffff;
  border-radius: 10px;
  text-decoration: none;
  color: #333;
  box-shadow: 0 3px 8px rgba(0,0,0,0.08);
  transition: 0.2s;
}

.link-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.12);
}

/* ステップカード */
.step-card {
  background: #ffffff;
  padding: 25px;
  border-radius: 12px;
  margin-bottom: 25px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.08);

  min-height: 260px;
  display: flex;
  flex-direction: column;
}

.step-card .btn {
  margin-top: auto;
}

.step-card h3 {
  margin-top: 0;
}

footer {
  text-align: center;
  padding: 30px;
  color: #777;
}