* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: #222;
  background: #faf9ff;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  height: 72px;
  display: flex;
  align-items: center;
  padding: 0 36px;
  background: #fff;
  border-bottom: 1px solid #eee;
  gap: 32px;
}

.logo {
  font-size: 30px;
  font-weight: 800;
  color: #6f35d5;
  letter-spacing: 0.05em;
}

.site-header nav {
  margin-left: auto;
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}

.header-btn {
  background: #6f35d5;
  color: #fff;
  padding: 12px 18px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 48px;
}

.breadcrumb {
  font-size: 13px;
  color: #777;
  margin-bottom: 18px;
}

.card {
  background: #fff;
  border: 1px solid #eee6ff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 8px 24px rgba(80, 40, 160, 0.05);
  margin-bottom: 24px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.meta {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
}

.meta span {
  background: #f1e8ff;
  color: #6f35d5;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

h1 {
  font-size: 36px;
  line-height: 1.45;
  margin: 0 0 18px;
}

h2 {
  font-size: 20px;
  color: #6f35d5;
  margin: 0 0 18px;
}

h3 {
  font-size: 16px;
  margin: 8px 0;
}

p,
li {
  font-size: 14px;
}

.hero-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
}

.placeholder-img {
  min-height: 260px;
  background: linear-gradient(135deg, #d7c7ff, #eef3ff);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6f35d5;
  font-weight: 700;
}

.point-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.point-box {
  border: 1px solid #eee6ff;
  border-radius: 14px;
  padding: 20px;
}

.icon {
  width: 42px;
  height: 42px;
  border: 2px solid #9b6cff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #6f35d5;
  font-weight: 800;
}

.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.process {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
}

.process div {
  min-width: 120px;
  background: #f4edff;
  color: #6f35d5;
  padding: 16px;
  border-radius: 12px;
  text-align: center;
  font-weight: 700;
  font-size: 13px;
  position: relative;
}

.process div:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -14px;
  color: #6f35d5;
}

.process .ship {
  background: #fff;
  border: 1px dashed #9b6cff;
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.voice-box {
  border: 1px solid #eee6ff;
  border-radius: 14px;
  padding: 18px;
  font-weight: 700;
}

.voice-box small {
  display: block;
  margin-top: 8px;
  font-weight: 400;
}

.next-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.next-grid span {
  width: 56px;
  height: 56px;
  border: 2px solid #9b6cff;
  border-radius: 50%;
  color: #6f35d5;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 20px;
}

footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  display: flex;
  align-items: center;
  gap: 40px;
  color: #666;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 13px;
}

footer small {
  margin-left: auto;
}

/* スマホ対応 */
@media (max-width: 768px) {
  .site-header {
    height: auto;
    padding: 16px;
    flex-wrap: wrap;
  }

  .site-header nav {
    width: 100%;
    overflow-x: auto;
    gap: 18px;
    font-size: 12px;
  }

  .header-btn {
    display: none;
  }

  .page {
    padding: 20px 14px 36px;
  }

  .hero,
  .two-column {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 26px;
  }

  .point-grid,
  .voice-grid,
  .next-grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 20px;
  }

  .process {
    padding-bottom: 8px;
  }

  footer {
    display: block;
  }

  .footer-links {
    flex-wrap: wrap;
    margin: 20px 0;
  }
}

/* =====================================
   Three Challenges ボタン
===================================== */

.challengeBtns {
  max-width: 320px;
  margin: 40px auto 0;
}

.challengeBtns .btn {
  flex: 1;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-radius: 30px;
}

.btn.primary {
  color: #fff;
  background: linear-gradient(135deg, #6c24d8, #8d48ff);
  border-color: #6c24d8;
}
/* スマホ */

@media screen and (max-width: 768px) {
  .challengeBtns {
    flex-direction: column;
  }
}

.img-list {
  display: flex;
  gap: 10px;
}

.img-list img {
  width: 33.333%;
  height: auto;
}

/* スマホ */
@media (max-width: 768px) {
  .img-list {
    flex-direction: column;
  }

  .img-list img {
    width: 100%;
  }
}