.support-page {
  background: #f3efe6;
  padding: 80px 20px 100px;
  color: #242424;
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
} 
.support-section h1{
  font-weight: 700;
  color: #444444;
}
.support-page * {
  box-sizing: border-box;
}

.support-layout {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.support-sidebar {
  position: sticky;
  top: 24px;
}

.support-side-main,
.support-side-group {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 10px 25px rgba(70, 50, 20, .06);
}

.support-side-main {
  padding: 18px 20px;
  margin-bottom: 16px;
  font-weight: 900;
  color: #00bfb3;
}

.support-side-group {
  padding: 18px 20px;
  margin-bottom: 16px;
}

.support-side-group h3 {
  margin: 0 0 14px;
  font-size: 16px;
  color: #222;
}

.support-side-group.active h3 {
  color: #00bfb3;
}

.support-side-group a {
  display: block;
  padding: 10px 0;
  border-top: 1px solid #eee;
  font-size: 14px;
  font-weight: 700;
  color: #555;
  text-decoration: none;
}

.support-content {
  min-width: 0;
}

.support-label {
  display: inline-block;
  background: #00bfb3;
  color: #fff;
  border-radius: 999px;
  padding: 10px 22px;
  margin: 0 0 24px;
  font-weight: 900;
}

.support-section {
  background: #fff;
  border-radius: 28px;
  padding: 42px;
  margin-bottom: 36px;
  box-shadow: 0 12px 30px rgba(70, 50, 20, .06);
}

.support-section h2 {
  margin: 0 0 22px;
  padding-bottom: 14px;
  border-bottom: 4px solid #00bfb3;
  font-size: 28px;
  line-height: 1.4;
}

.support-section h3 {
  margin: 30px 0 14px;
  font-size: 20px;
  color: #00a9a0;
}

.support-section h4 {
  margin: 0 0 12px;
  font-size: 18px;
}

.support-section p {
  margin: 0 0 18px;
  line-height: 2;
  font-weight: 500;
}

.support-section ol,
.support-section ul {
  margin: 0;
  padding-left: 1.4em;
  line-height: 2;
}

.support-section li {
  margin-bottom: 8px;
}

.support-doc-img {
  width: min(520px, 100%);
  margin: 28px auto 0;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(0,0,0,.08);
}

/* flow tab */
.flow-tab-section {
  margin: 30px 0 48px;
}

.flow-tab-section > input {
  display: none;
}

.flow-tab-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.flow-tab-btn {
  display: grid;
  place-items: center;
  padding: 16px 14px;
  border: 2px solid #00bfb3;
  border-radius: 999px;
  color: #00a9a0;
  background: #fff;
  font-weight: 900;
  cursor: pointer;
}

#flow-ready:checked ~ .flow-tab-buttons label[for="flow-ready"],
#flow-order:checked ~ .flow-tab-buttons label[for="flow-order"] {
  background: #00bfb3;
  color: #fff;
}

.flow-tab-content {
  display: none;
}

#flow-ready:checked ~ .flow-ready-content,
#flow-order:checked ~ .flow-order-content {
  display: grid;
  gap: 18px;
}

.flow-step {
  position: relative;
  background: #f7f4ec;
  border-radius: 20px;
  padding: 24px 26px 24px 86px;
}

.flow-step span {
  position: absolute;
  left: 24px;
  top: 24px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #00bfb3;
  color: #fff;
  font-size: 20px;
  font-weight: 900;
}

.flow-step strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
  color: #222;
}

.flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.flow-step a {
  display: inline;
  color: #00a9a0;
  font-weight: 900;
  text-decoration: underline;
}

.flow-arrow {
  text-align: center;
  color: #00bfb3;
  font-size: 32px;
  font-weight: 900;
  line-height: 1.2;
}

.flow-arrow small {
  font-size: 13px;
  color: #555;
}

.delivery-map {
  margin-top: 24px;
  background: #f7f4ec;
  border-radius: 20px;
  padding: 22px;
}

.delivery-map img {
  width: 100%;
  border-radius: 14px;
}

/* payment */
.payment-table {
  display: grid;
  gap: 14px;
  margin: 24px 0 34px;
}

.payment-table div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 20px;
  background: #f7f4ec;
  border-radius: 16px;
}

.payment-table dt {
  font-weight: 900;
  color: #00a9a0;
}

.payment-table dd {
  margin: 0;
  line-height: 1.8;
}

/* return */
.return-box {
  background: #fff7df;
  border-left: 6px solid #ffd400;
  border-radius: 18px;
  padding: 24px;
  margin: 26px 0;
}

.return-box p {
  margin: 0;
}

/* responsive */
@media (max-width: 1024px) {
  .support-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .support-sidebar {
    position: static;
  }

  .support-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .support-side-main {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .support-page {
    padding: 50px 14px 70px;
  }

  .support-sidebar {
    grid-template-columns: 1fr;
  }

  .support-section {
    padding: 28px 20px;
    border-radius: 22px;
  }

  .support-section h2 {
    font-size: 23px;
  }

  .support-section h3 {
    font-size: 18px;
  }

  .flow-tab-buttons {
    grid-template-columns: 1fr;
  }

  .flow-step {
    padding: 78px 20px 22px;
  }

  .flow-step span {
    left: 20px;
    top: 20px;
  }

  .payment-table div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}