.mc-header {
    font-family: system-ui, -apple-system, "Segoe UI",
      "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN",
      "Yu Gothic", YuGothic, Meiryo, sans-serif;
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  .mc-header__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    box-sizing: border-box;
  }
  
  .mc-logo img {
    display: block;
    height: auto;
  }
  
  /* =====================================
     PC：上段ヘッダー
     ===================================== */
  
  .mc-header__top--pc {
    background: #fff;
    border-bottom: 1px solid #e6e6e6;
  }
  
  .mc-header__top--pc .mc-header__inner {
    gap: 16px;
    padding-top: 4px;
    padding-bottom: 4px;
  }
  
  .mc-phone {
    margin-left: auto;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    grid-template-areas:
      "badge number"
      "badge time";
    column-gap: 16px;
    align-items: center;
    border: none;
    padding: 0;
  }
  
  .mc-phone__badge {
    grid-area: badge;
    background: transparent;
    color: #29a9e1;
    border: 1px solid #29a9e1;
    font-weight: 700;
    text-align: center;
    font-size: 16px;
    line-height: 1.2;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0;
  }
  
  .mc-phone__number {
    grid-area: number;
    display: block;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-weight: 500;
    font-size: 30px;
    letter-spacing: 0.04em;
    color: #29a9e1;
    text-decoration: none;
    line-height: 1.1;
    transform: skewX(-2deg);
  }
  
  .mc-phone__time {
    grid-area: time;
    display: block;
    margin-top: 4px;
    font-size: 13px;
    font-weight: 500;
    color: #666666;
  }
  
  .mc-actions {
    display: flex;
    gap: 12px;
    margin-left: 16px;
  }
  
  .mc-actions__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 22px;
    border-radius: 0;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
    font-size: 18px;
  }
  
  .mc-actions__btn--blue {
    background: #1ea0e0;
    color: #fff;
  }
  
  .mc-actions__btn--yellow {
    background: #fff34e;
    color: #0c99d0;
  }
  
  /* =====================================
     PC：下段ナビ
     ===================================== */
  
  .mc-gnav--pc {
    background: #29a9e1;
    box-shadow: inset 0 -2px 0 rgba(0, 0, 0, .08);
  }
  
  .mc-gnav--pc .mc-header__inner {
    padding-top: 2px;
    padding-bottom: 2px;
  }
  
  .mc-gnav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    width: 100%;
  }
  
  .mc-gnav__list > li {
    flex: 1 1 auto;
    text-align: center;
    position: relative;
  }
  
  .mc-gnav__list > li + li {
    border-left: none;
  }
  
  .mc-gnav__list a {
    display: block;
    padding: 10px 8px;
    color: #fff;
    font-weight: 800;
    letter-spacing: .08em;
    text-decoration: none;
  }
  
  .mc-gnav__list > li + li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 22%;
    bottom: 22%;
    width: 1px;
    background: rgba(255, 255, 255, .6);
  }
  
  .mc-gnav__list a:hover {
    background: rgba(255, 255, 255, .08);
  }
  
  /* =====================================
     SPヘッダー 基本
     ===================================== */
  
  .mc-header__sp {
    background: #29a9e1;
    color: #fff;
  }
  
  .mc-header__inner--sp {
    padding: 0;
    max-width: none;
    margin: 0;
    height: 70px;
    display: flex;
    align-items: stretch;
  }
  
  .mc-logo--sp {
    flex: 0 0 auto;
    padding: 0 10px;
    border-right: 1px solid rgba(255, 255, 255, .5);
    display: flex;
    align-items: center;
  }
  .mc-logo--sp img {
    width: 120px;
    height: auto;
  }
  
  .mc-sp-actions {
    flex: 1 1 auto;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    border-right: 1px solid rgba(255, 255, 255, .5);
  }
  
  .mc-sp-actions__btn {
    flex: 1 1 50%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    border-radius: 0;
    border: none;
    font-size: 12px;
    font-weight: 800;
    color: #fff;
    text-align: center;
    text-decoration: none;
  }
  
  .mc-sp-actions__btn + .mc-sp-actions__btn {
    border-left: 1px solid rgba(255, 255, 255, .5);
  }
  
  .mc-sp-actions__btn--yellow {
    background: transparent;
    color: #fff;
  }
  
  .mc-sp-menu {
    flex: 0 0 auto;
    padding: 0 10px;
    border-left: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #fff34e;
  }
  
  .mc-sp-menu__lines {
    display: block;
    margin-bottom: 4px;
  }
  .mc-sp-menu__lines span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff34e;
    margin: 3px 0;
  }
  .mc-sp-menu__text {
    font-size: 14px;
    font-weight: 800;
  }
  
  /* =====================================
     PC/SP 出し分け
     ===================================== */
  
  @media (max-width: 767px) {
    .mc-header__top--pc,
    .mc-gnav--pc {
      display: none;
    }
  }
  
  @media (min-width: 768px) {
    .mc-header__sp {
      display: none;
    }
  }
  
  /* =====================================
     レスポンシブ微調整（タブレット）
     ===================================== */
  
  @media (max-width: 1023px) and (min-width: 768px) {
    .mc-phone__number { font-size: 26px; }
    .mc-actions__btn { padding: 10px 16px; font-size: 13px; }
  }

  /* =====================================  
     SP：ボタン文字サイズ
     ===================================== */

  @media (max-width: 767px) {
    .mc-sp-actions__btn:first-child {
      flex: 0 0 80px;
      font-size: 14px;
      font-weight: 600;
    }
  
    .mc-sp-actions__btn.mc-sp-actions__btn--yellow {
      flex: 1 1 auto;
      font-size: 14px;
    }
  }