.receive-concept-container {
  margin: 0 auto 0;
  padding: 30px 45px;
  border-top: 1px solid #D2DAE4;
  border-left: 1px solid #D2DAE4;
  border-right: 1px solid #D2DAE4;
  border-radius: 20px 20px 0 0;
}

.concept-main-title {
  text-align: center;
  color: #002b62;
  font-size: clamp(1.375rem, 1.304rem + 0.36vw, 1.625rem);
  font-weight: bold;
  margin-bottom: 28px;
}
.usage-sub-title {
  align-items: center;
  display: flex;
  font-size: clamp(1rem, 0.929rem + 0.36vw, 1.25rem);
  font-weight: 700;
  margin-bottom: 15px;
  color: #112d56;
}
.usage-sub-title::before {
  border: 5px solid #066dff;
  border-radius: 50%;
  content: "";
  display: inline-block;
  height: 20px;
  margin-right: 8px;
  width: 20px;
}
.concept-flex-layout {
  display: flex;
  gap: 50px;
  align-items: flex-start;
}

/* 画像エリア */
.phone-wrapper img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0,0,0,0.1));
}

/* リストエリア */
.concept-details {
  flex: 1;
}

.concept-number-list {
  list-style: none;
  padding: 0;
  margin-bottom: 40px;
}

.concept-list-item {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  font-size: clamp(1rem, 0.964rem + 0.18vw, 1.125rem);
  color: #002b62;
  font-weight: bold;
}

.number-circle {
  width: 30px;
  height: 30px;
  border: 2px solid #0055ff;
  color: #0055ff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  font-size: clamp(0.875rem, 0.839rem + 0.18vw, 1rem);
}

/* バッジの装飾 */
.badge {
  margin-left: 15px;
  font-size: clamp(0.688rem, 0.67rem + 0.09vw, 0.75rem);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: normal;
}
.badge-recommended { border: 1px solid #ff4d4d; color: #ff4d4d; }
.badge-required { border: 1px solid #ff4d4d; color: #ff4d4d; }
.badge-optional { border: 1px solid #ccc; color: #999; }

/* 留意点ボックス */
.concept-notice-box {
  background-color: #F0F0F0;
  padding: 20px;
  border-radius: 10px;
}
.notice-box-title {
  margin-top: 0;
  font-size: 14px;
  color: #112D56;
  font-weight: normal;
  margin-bottom: 5px;
}
.notice-content {
  font-size: clamp(0.813rem, 0.795rem + 0.09vw, 0.875rem);
  color :#112D56 !important;
  line-height: 1.6;
  font-weight: normal !important;
}

/* スマホ対応 */
@media (max-width: 768px) {
  .concept-flex-layout {
    flex-direction: column;
    align-items: center;
  }
  .concept-visual {
    flex: 0 0 auto;
    width: 80%;
  }
}

.visa-usage-guide {
  margin: 0 auto;
  padding: 1.8em 4.5em 0;
  border-left: 1px solid #D2DAE4;
  border-right: 1px solid #D2DAE4;
  border-bottom: 1px solid #D2DAE4;
  border-radius: 0 0 20px 20px;
}

.visa-usage-check {
  margin-bottom: 50px;
}

.usage-section {
  margin-bottom: 40px;
}

.usage-main-title {
  text-align: center;
  color: #002b62;
  font-size: clamp(1.375rem,1.304rem + .36vw,1.625rem);
  font-weight: bold;
  margin-bottom: 40px;
}

.usage-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.usage-flex-center {
  justify-content: center;
  gap: 15px;
  margin-bottom: 28px;
}

.usage-card {
  flex: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
}
.usage-flex-center .usage-card {
  border-radius: 16px;
  background: #EEF5FF;
  padding: 18px;
}

.usage-step-label {
  margin-bottom: 18px;
}
.usage_attentioin {
  border-radius: 10px;
  background: #F0F0F0;
  padding: 18px;
  font-size: 14px;
}
.usage_attentioin strong {
  color: #DF0000;
}

/* 青いステップ番号 */
.usage-step-num {
  background-color: #066DFF;
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-weight: bold;
  font-size: clamp(1.125rem, 1.071rem + 0.27vw, 1.313rem);
}
.usage-step-num:before {
  content: "0";
  font-size: clamp(1.125rem, 1.071rem + 0.27vw, 1.313rem);
  display: inline-block;
}

.usage-flex-center .usage-step-num {
  background: transparent;
  color: #066DFF;
  font-size: clamp(1.375rem, 1.304rem + 0.36vw, 1.625rem);
  margin-bottom: 0;
}
.usage-flex-center .usage-step-num:before { font-size: clamp(1.375rem, 1.304rem + 0.36vw, 1.625rem); }

.usage-image img {
  max-width: 100%;
  height: auto;
}

span.badge.badge-gift {
  display: inline-block;
  color: #066DFF;
  border: 1px solid #066DFF;
  font-weight: bold;
  margin-left: 0;
}

/* 下部セクションの背景付き画像（枠線と角丸） */
.usage-text {
  font-size: clamp(0.875rem, 0.839rem + 0.18vw, 1rem);
  line-height: 1.6;
  text-align: left;
  margin-bottom: 14px;
  padding: 1rem 1rem 0;
}

/* ステップ間の矢印 */
.usage-arrow {
  align-self: center;
  color: #007bff;
  font-size: 24px;
  font-weight: bold;
  padding-bottom: 60px; /* テキスト分を考慮して調整 */
}

/* スマホ対応 */
@media (max-width: 768px) {
  .usage-section {
    margin-bottom: 0;
  }
  .usage-grid {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .usage-arrow {
    transform: rotate(90deg);
    padding: 10px 0;
  }
  .receive-concept-container,
  .visa-usage-guide {
    padding: 1.4em;
  }
  .concept-flex-layout {
    gap: 1em;
  }
  .number-circle {
    width: 24px;
    height: 24px;
    margin-right: .6em;
  }
  span.item-name { flex: 1; }
  .badge {
    white-space: nowrap;
  }
  .usage-text {
    margin-bottom: 0;
    padding: .8em 0 0;
  }
  .usage-step-num {
    width: 36px;
    height: 36px;
}