.btc-shopping-index-pc__login-wrapper {
    background: #f5f5f0;
    color: #2d2d2d;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    padding-bottom: 60px;
}

/* パンくずリスト */
.btc-shopping-index-pc__breadcrumb-container {
    position: relative;
    padding: 85px 25px 20px 25px;
    z-index: 10;
}
.btc-shopping-index-pc__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;
}
.btc-shopping-index-pc__breadcrumbs li:not(:last-child)::after {
    content: "/";
    margin: 0 10px;
    color: #ccc;
}
.btc-shopping-index-pc__breadcrumbs a {
    text-decoration: none;
    color: #2d2d2d;
    opacity: 0.5;
}

/* ページヘッダー */
.btc-shopping-index-pc__page-header {
    padding: 20px 25px 40px;
    text-align: center;
    position: relative;
}
.btc-shopping-index-pc__page-title {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 600;
    font-size: 1.375rem;
    letter-spacing: 0.1rem;
    margin: 0;
    color: #1a2a40;
    line-height: 1.6;
}
.btc-shopping-index-pc__page-title span {
    display: block;
    font-size: 10px;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.3em;
    margin-top: 10px;
    opacity: 0.6;
}

.btc-shopping-index-pc__main-content {
    max-width: 700px;
    margin: 0 auto;
}

.btc-shopping-index-pc__login-section {
    padding: 0 20px;
    margin-bottom: 60px;
}

.btc-shopping-index-pc__section-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    text-align: center;
}

.btc-shopping-index-pc__section-desc {
    font-size: 15px;
    line-height: 1.6;
    padding: 5px 0 30px;
    text-align: center;
}

.btc-shopping-index-pc__input-group {
    position: relative;
    margin-bottom: 20px;
}

.btc-shopping-index-pc__input-label {
    display: block;
    font-size: 16px;
    color: #2d2d2d;
    margin-bottom: 5px;
    font-weight: 700;
}

.btc-shopping-index-pc__form-input {
    width: 100%;
    height: 58px;
    background-color: #ffffff;
    border: 1px solid #a0a1a1;
    box-sizing: border-box;
    padding: 0 15px;
    font-size: 16px;
    color: #2d2d2d;
    border-radius: 4px;
    outline: none;
}

.btc-shopping-index-pc__password-wrapper {
    position: relative;
}

.btc-shopping-index-pc__password-icon {
    position: absolute;
    top: 1px;
    right: 0;
    width: 58px;
    height: 100%;
    cursor: pointer;
    content: "";
    background: center center no-repeat;
    background-image: url("/ast/svg/eye_close.svg?v=1");
    background-size: 1.5em;
}

.is-password-visible .btc-shopping-index-pc__password-icon {
    background-image: url("/ast/svg/eye_open.svg");
}

/* リンク */
.btc-shopping-index-pc__link-text {
    display: block;
    font-size: 15px;
    color: #1a2a40;
    text-decoration: underline;
    margin-bottom: 15px;
    font-weight: 700;
}
.btc-shopping-index-pc__link-text-sm {
    color: #1a2a40;
    text-decoration: underline;
    font-weight: 700;
}

.btc-shopping-index-pc__info-text {
    font-size: 15px;
    line-height: 1.6;
    margin: 30px 0;
}
.btc-shopping-index-pc__info-text a {
    color: #1a2a40;
    text-decoration: underline;
    font-weight: 700;
}

/* ボタン */
.btc-shopping-index-pc__btn-container {
    padding: 0 40px;
    margin-top: 20px;
}
.btc-shopping-index-pc__btn-login { background-color: #1a2a40; color: #ffffff; }
.btc-shopping-index-pc__btn-register { background-color: #189bbc; color: #ffffff; }
.btc-shopping-index-pc__btn-register-buystep { background-color: #ffffff; color: #189bbc; }
.btc-shopping-index-pc__btn-line-buystep { background-color: #ffffff; color: #189bbc; border: 1px solid #189bbc; }

.btc-shopping-index-pc__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-shopping-index-pc__form-btn:hover { opacity: 0.8; }

.btc-shopping-index-pc__form-btn-buystep {
    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;
    cursor: pointer;
    transition: opacity 0.3s;
    border-radius: 30px;
    box-sizing: border-box;
}
.btc-shopping-index-pc__form-btn-buystep:hover { opacity: 0.8; }

/* --- LINEログインボタン専用の内部レイアウト --- */
.btc-shopping-index-pc__c-line-connect-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.btc-shopping-index-pc__line-left {
    display: flex;
    align-items: center;
    justify-content: center;
}
.btc-shopping-index-pc__line-left img {
    width: 32px;
    height: auto;
    display: block;
}
.btc-shopping-index-pc__line-right {
    font-size: 16px;
    font-weight: 600;
}
.btc-shopping-index-pc__btn-line {
    background-color: #06c755;
    color: #ffffff;
    border: none;
    transition: background-color 0.3s, opacity 0.3s;
}
.btc-shopping-index-pc__btn-line:hover {
    background-color: #05a648;
    opacity: 0.9;
}

/* 区切り線 */
.btc-shopping-index-pc__divider {
    border: none;
    border-top: 1px solid #a0a1a1;
    margin: 50px 20px;
}


/* =============================================
   PC レスポンシブ (768px)
   ============================================= */
@media (min-width: 768px) {
    .btc-shopping-index-pc__breadcrumb-container { 
        padding: 90px 40px 20px; 
        max-width: 960px;
        margin: 0 auto;
    }
    .btc-shopping-index-pc__breadcrumbs { font-size: 13px; }

    .btc-shopping-index-pc__page-header { padding: 20px 40px 40px; }
    
    .btc-shopping-index-pc__page-title { font-size: 28px; }
    .btc-shopping-index-pc__page-title span {
        font-size: 12px;
    }
    .btc-shopping-index-pc__login-section { padding: 0 40px; }

    .btc-shopping-index-pc__btn-container { padding: 0; max-width: 400px; margin-left: auto; margin-right: auto; }

    .btc-shopping-index-pc__divider { margin: 50px 40px; }
}

/* =============================================
   PC レスポンシブ (1024px)
   ============================================= */
@media (min-width: 1024px) {
    .btc-shopping-index-pc__breadcrumb-container { padding: 90px 60px 20px; }

    .btc-shopping-index-pc__page-header { padding: 20px 60px 40px; }
    .btc-shopping-index-pc__page-title span {
        font-size: 14px;
    }
    .btc-shopping-index-pc__login-wrapper { max-width: 900px; margin-left: auto; margin-right: auto; }

    .btc-shopping-index-pc__login-section { padding: 0 60px; }
    .btc-shopping-index-pc__divider { margin: 50px 60px; }
}