/* --- [03. パンくずリスト] --- */
.btc-mypage-gmopg-change-card-info__breadcrumb-container {
    position: relative;
    padding: 85px 25px 20px;
    z-index: 10;
}
.btc-mypage-gmopg-change-card-info__breadcrumbs {
    list-style: none;
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
    font-size: 10px;
    letter-spacing: 0.05em;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}
.btc-mypage-gmopg-change-card-info__breadcrumbs li:not(:last-child)::after {
    content: "/";
    margin: 0 10px;
    color: #ccc;
}
.btc-mypage-gmopg-change-card-info__breadcrumbs a {
    text-decoration: none;
    color: #2d2d2d;
    opacity: 0.5;
}

/* --- [04. ページヘッダー] --- */
.btc-mypage-gmopg-change-card-info__page-header {
    padding: 20px 25px 30px;
    text-align: center;
    position: relative;
}
.btc-mypage-gmopg-change-card-info__page-title {
    font-family: 'Zen Kaku Gothic New', sansf-serif;
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: 0.1rem;
    margin: 0;
    color: #008075;
    line-height: 1.6;
}
.btc-mypage-gmopg-change-card-info__page-title span {
    display: block;
    font-size: 10px;
    font-family: 'Inter', sans-serif;
    letter-spacing: 2em;
    text-indent: 2em;
    text-align: center;
    margin-top: 0px;
    opacity: 0.6;
}

/* --- [05. コンテンツエリア共通設定] --- */
main { position: relative; z-index: 1; }
.btc-mypage-gmopg-change-card-info__main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px 80px;
}

/* --- [06. TOPへ戻るボタン] --- */
.btc-mypage-gmopg-change-card-info__totop-button {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 54px;
    height: 54px;
    background-color: #bda16b;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 10px;
    font-weight: 200;
    z-index: 9999;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    text-align: center;
    line-height: 1.3;
    letter-spacing: 0.1em;
}
.btc-mypage-gmopg-change-card-info__totop-button:hover { opacity: 0.8; transform: translateY(-3px); }
.btc-mypage-gmopg-change-card-info__totop-button.btc-mypage-gmopg-change-card-info__is-show { opacity: 1; visibility: visible; }

/* --- [07. ユーザー挨拶エリア] --- */
.btc-mypage-gmopg-change-card-info__mypage-greeting {
    padding: 0px 0 10px;
    border-bottom: 1px solid #e5e5e5;
    margin-bottom: 24px;
}
.btc-mypage-gmopg-change-card-info__mypage-greeting .btc-mypage-gmopg-change-card-info__user-name {
    font-size: 20px;
    font-weight: 700;
    font-family: 'Noto Sans JP', sans-serif;
    color: #2d2d2d;
    letter-spacing: 0.06em;
    margin: 10px 0 4px;
}
.btc-mypage-gmopg-change-card-info__mypage-greeting .btc-mypage-gmopg-change-card-info__user-name em {
    font-style: normal;
    font-size: 16px;
    font-weight: 500;
    color: #2d2d2d;
    margin-left: 4px;
    letter-spacing: 0.05em;
}

/* --- [08. セクション見出し] --- */
.btc-mypage-gmopg-change-card-info__section-title {
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #008075;
    margin: 36px 0 32px;
    letter-spacing: 0.05em;
}

/* --- [09. ステップインジケーター] --- */
.btc-mypage-gmopg-change-card-info__step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 36px;
}
.btc-mypage-gmopg-change-card-info__step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.btc-mypage-gmopg-change-card-info__step-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e0e0e0;
    color: #999;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.btc-mypage-gmopg-change-card-info__step-circle.btc-mypage-gmopg-change-card-info__active {
    background: #008075;
    color: #fff;
}
.btc-mypage-gmopg-change-card-info__step-label {
    font-size: 11px;
    color: #999;
    white-space: nowrap;
}
.btc-mypage-gmopg-change-card-info__step-label.btc-mypage-gmopg-change-card-info__active {
    color: #008075;
    font-weight: 700;
}
.btc-mypage-gmopg-change-card-info__step-line {
    width: 44px;
    height: 2px;
    background: #e0e0e0;
    margin-bottom: 20px;
}

/* --- [サブセクション見出し] --- */
.btc-mypage-gmopg-change-card-info__card-list-title {
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: #008075;
    border-bottom: 2px solid #008075;
    padding-bottom: 8px;
    margin: 60px 0 20px;
    letter-spacing: 0.05em;
}
.btc-mypage-gmopg-change-card-info__card-list-title:first-of-type {
    margin-top: 0;
}

/* --- [10. フォームコンテナ] --- */
.btc-mypage-gmopg-change-card-info__form-container {
    background: #ffffff;
    border-radius: 12px;
    padding: 10px 5px;
    box-sizing: border-box;
}

/* --- [11. フォームグループ] --- */
.btc-mypage-gmopg-change-card-info__form-group {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
}

.btc-mypage-gmopg-change-card-info__form-label {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #2d2d2d;
    display: flex;
    align-items: center;
    letter-spacing: 0.03em;
}
.btc-mypage-gmopg-change-card-info__badge-required {
    background-color: #e07272;
    color: #ffffff;
    font-size: 10px;
    padding: 2px 6px 4px;
    border-radius: 4px;
    margin-left: 8px;
    font-weight: 500;
    letter-spacing: 0;
}

/* 注釈テキスト */
.btc-mypage-gmopg-change-card-info__form-note {
    font-size: 13px;
    color: #888888;
    margin-bottom: 8px;
    line-height: 1.6;
}

.btc-mypage-gmopg-change-card-info__card-digit-counter {
    margin-top: 6px;
    margin-right: 10px;
    font-size: 13px;
    text-align: right;
    color: #666;
}


/* --- [12. 入力欄・セレクト共通] --- */
.btc-mypage-gmopg-change-card-info__input-text, .btc-mypage-gmopg-change-card-info__input-select {
    width: 100%;
    padding: 16px 16px;
    font-size: 17px;
    border: 1px solid #dcdcd8;
    border-radius: 6px;
    background-color: #f1f1f0;
    color: #2d2d2d;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s, background-color 0.2s, box-shadow 0.2s;
    min-height: 54px;
}
.btc-mypage-gmopg-change-card-info__input-text:focus, .btc-mypage-gmopg-change-card-info__input-select:focus {
    outline: none;
    border-color: #008075;
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 128, 117, 0.1);
}
.btc-mypage-gmopg-change-card-info__input-text::placeholder {
    color: #bbbbbb;
    font-size: 15px;
}

/* セレクトラッパー（緑▼） */
.btc-mypage-gmopg-change-card-info__input-select {
    -webkit-appearance: none;
    appearance: none;
    padding-right: 40px;
}
.btc-mypage-gmopg-change-card-info__select-wrapper {
    position: relative;
}
.btc-mypage-gmopg-change-card-info__select-wrapper::after {
    content: "▼";
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 11px;
    color: #008075;
    pointer-events: none;
}

/* --- [13. 有効期限行] --- */
.btc-mypage-gmopg-change-card-info__expiry-row {
    display: flex;
    gap: 12px;
    align-items: center;
}
.btc-mypage-gmopg-change-card-info__expiry-row .btc-mypage-gmopg-change-card-info__select-wrapper {
    flex: 1;
}
.btc-mypage-gmopg-change-card-info__expiry-row .btc-mypage-gmopg-change-card-info__unit-label {
    font-size: 16px;
    color: #2d2d2d;
    white-space: nowrap;
    font-weight: 500;
}

/* --- [14. 注意喚起ボックス] --- */
.btc-mypage-gmopg-change-card-info__address-alert {
    background-color: #fff9d8;
    color: #666666;
    padding: 15px;
    font-size: 13px;
    line-height: 1.7;
    border-radius: 4px;
    margin-bottom: 28px;
}

/* --- [15. ボタンエリア] --- */
.btc-mypage-gmopg-change-card-info__btn-container {
    padding: 0 35px;
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.btc-mypage-gmopg-change-card-info__form-btn {
    width: 100%;
    height: 60px;
    max-width: 320px;
    margin: 0 auto;    
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: opacity 0.3s;
    border-radius: 30px;
    box-sizing: border-box;
}
.btc-mypage-gmopg-change-card-info__form-btn:hover { opacity: 0.8; }
.btc-mypage-gmopg-change-card-info__btn-green { background-color: #008075; color: #ffffff; }
.btc-mypage-gmopg-change-card-info__btn-white { background-color: #ffffff; color: #008075; border: 1px solid #008075; }

/* ============================================================
   PC・タブレット レイアウト（768px以上）
   ============================================================ */
@media (min-width: 768px) {
    .btc-mypage-gmopg-change-card-info__breadcrumb-container {
        max-width: 960px;
        margin: 0 auto;
    }
    .btc-mypage-gmopg-change-card-info__breadcrumbs {
        font-size: 12px;
    }
    .btc-mypage-gmopg-change-card-info__main-content {
        max-width: 960px;
        padding: 15px 30px 80px;
        display: flex;
        flex-wrap: wrap;
    }
    .btc-mypage-gmopg-change-card-info__main-content .c-contents-header {
        width: 100%;
    }
    .btc-mypage-gmopg-change-card-info__main-content .mypage-contents__aside {
        width: 240px;
        margin-right: 50px;
        position: sticky;
        top: 95px;
        align-self: flex-start;
    }
    .btc-mypage-gmopg-change-card-info__main-content .btc-mypage-gmopg-change-card-info__form-content {
        width: calc(100% - 290px);
    }
    .btc-mypage-gmopg-change-card-info__section-title {
        font-size: 26px;
        margin: 20px 0 30px;
    }

    .btc-mypage-gmopg-change-card-info__form-btn {
        margin: 0 auto;
    }
}

/* ============================================================
   ワイドデスクトップ（1024px以上）
   ============================================================ */
@media (min-width: 1024px) {
    .btc-mypage-gmopg-change-card-info__main-content {
        max-width: 1060px;
    }
    .btc-mypage-gmopg-change-card-info__breadcrumb-container {
        max-width: 1060px;
    }
}