* { box-sizing: border-box; }

html { background: #fff; }

body {
  margin: 0;
  background: #fff url("img/back.png") repeat;
  color: #000;
  font-family: "MS Gothic", "Yu Gothic", Osaka, sans-serif;
}

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

.reasons-page {
  width: 950px;
  margin: 0 auto;
  padding: 0 0 40px;
  background: #fff;
}

.reasons-header {
  position: relative;
  width: 950px;
  height: 150px;
  margin: 0 auto;
}

.reasons-header h1 {
  position: absolute;
  top: 40px;
  left: 40px;
  width: 531px;
  height: 55px;
  margin: 0;
}

.header-illustration {
  position: absolute;
  top: 5px;
  right: 30px;
  width: 132px;
  height: 135px;
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, 270px);
  gap: 30px;
  width: 870px;
  margin: 0 0 0 40px;
}

.reason-card {
  width: 270px;
  height: 355px;
  margin: 0;
  padding: 43px 20px 18px;
  background: url("img/paper.png") no-repeat 0 0 / 270px 355px;
}

.reason-illustration {
  width: 230px;
  height: 160px;
}

.reason-copy {
  width: 226px;
  height: 48px;
  margin-top: 10px;
}

.reason-card p {
  width: 225px;
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 22px;
  text-align: justify;
}

.close-button {
  margin: 40px auto 0;
  text-align: center;
}

.close-button a,
.close-button img {
  display: inline-block;
  width: 135px;
  height: 26px;
}

.close-button a:hover img { content: url("img/b_close_on.png"); }

@media (max-width: 949px) {
  .reasons-page,
  .reasons-header {
    width: 100%;
  }

  .reasons-page { min-height: 100vh; }

  .reasons-header {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    height: auto;
    padding: 28px 20px;
  }

  .reasons-header h1 {
    position: static;
    width: min(531px, calc(100vw - 150px));
    height: auto;
  }

  .header-illustration {
    position: static;
    flex: 0 0 92px;
    width: 92px;
    height: auto;
    margin-left: 16px;
  }

  .reason-grid {
    grid-template-columns: repeat(2, 270px);
    justify-content: center;
    width: 100%;
    margin: 0;
  }
}

@media (max-width: 639px) {
  .reasons-header {
    min-height: 126px;
    padding: 24px 14px 20px;
  }

  .reasons-header h1 { width: calc(100vw - 112px); }

  .header-illustration {
    flex-basis: 76px;
    width: 76px;
    margin-left: 8px;
  }

  .reason-grid {
    grid-template-columns: 270px;
    gap: 24px;
  }

  .close-button { margin-top: 32px; }
}