/* --- [01. 基礎設定] --- */
body {
    margin: 0; padding: 0;
    background-color: #f5f5f0;
    color: #2d2d2d;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    position: relative;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    scroll-behavior: smooth;
}

/* --- [02. 質感ノイズ] --- */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.04;
    pointer-events: none;
    z-index: 9998;
}

/* --- [03. パンくずリスト] --- */
.btc-contact-remarks-pc__breadcrumb-container {
    position: relative;
    padding: 85px 25px 20px;
    z-index: 10;
}
.btc-contact-remarks-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;
    -webkit-overflow-scrolling: touch;
}
.btc-contact-remarks-pc__breadcrumbs li:not(:last-child)::after {
    content: "/";
    margin: 0 10px;
    color: #ccc;
}
.btc-contact-remarks-pc__breadcrumbs a {
    text-decoration: none;
    color: #2d2d2d;
    opacity: 0.5;
}

/* --- [04. ページヘッダー] --- */
.btc-contact-remarks-pc__page-header {
    padding: 20px 25px 40px;
    text-align: center;
    position: relative;
}
.btc-contact-remarks-pc__page-title {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 550;
    font-size: 1.375rem;
    letter-spacing: 0.1rem;
    margin: 0;
    color: #1a2a40;
    line-height: 1.6;
}
.btc-contact-remarks-pc__page-title span {
    display: block;
    font-size: 10px;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.3em;
    margin-top: 10px;
    opacity: 0.6;
}

/* --- [05. コンテンツエリア] --- */
main { position: relative; z-index: 1; }
.btc-contact-remarks-pc__main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 25px 100px;
}

/* ホワイトボックス */
.btc-contact-remarks-pc__white-box {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 40px 25px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    box-sizing: border-box;
}

/* 見出しデザイン */
.btc-contact-remarks-pc__section-h {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a2a40;
    margin: 0 0 25px 0;
    text-align: center;
    display: block;
    letter-spacing: 0.05em;
}

/* --- [ご利用ガイド] リスト表示 --- */
.btc-contact-remarks-pc__guide-list {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
    border-top: none;
}
.btc-contact-remarks-pc__guide-list li {
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s;
}
.btc-contact-remarks-pc__guide-list li:hover {
    background-color: #fafafa;
}
.btc-contact-remarks-pc__guide-list a {
    display: flex;
    align-items: center;
    padding: 18px 10px;
    text-decoration: none;
    color: #2d2d2d;
    font-size: 14px;
    position: relative;
}
.btc-contact-remarks-pc__guide-list a::after {
    content: "";
    position: absolute;
    right: 10px; top: 50%;
    width: 7px; height: 7px;
    border-top: 1.5px solid #1a2a40;
    border-right: 1.5px solid #1a2a40;
    transform: translateY(-50%) rotate(45deg);
    opacity: 0.6;
}

/* --- [飲み方蛇腹] --- */
.btc-contact-remarks-pc__nomikata-accordion {
    margin-top: -1px;
    border-top: 1px solid #eee;
}
.btc-contact-remarks-pc__nomikata-item {
    border-bottom: 1px solid #eee;
}
.btc-contact-remarks-pc__nomikata-header {
    width: 100%;
    padding: 18px 10px;
    background: none;
    border: none;
    text-align: left;
    font-size: 14px;
    color: #2d2d2d;
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    line-height: 1.5;
    font-family: inherit;
}
.btc-contact-remarks-pc__nomikata-header::after {
    content: "";
    position: absolute;
    right: 10px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-top: 1.5px solid #1a2a40;
    border-right: 1.5px solid #1a2a40;
    transform: translateY(-50%) rotate(135deg);
    opacity: 0.6;
    transition: transform 0.3s;
}
.btc-contact-remarks-pc__nomikata-item.active .btc-contact-remarks-pc__nomikata-header::after {
    transform: translateY(-50%) rotate(-45deg);
}
.btc-contact-remarks-pc__nomikata-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: #fcfcfb;
}
.btc-contact-remarks-pc__nomikata-content a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    padding: 15px 15px 15px 20px;
    font-size: 13px;
    color: #2d2d2d;
    text-decoration: none;
    line-height: 1.6;
    border-top: 1px solid rgba(0,0,0,0.05);
    transition: background-color 0.3s;
}
.btc-contact-remarks-pc__nomikata-content a span {
    flex: 1;
    padding-right: 10px;
}
.btc-contact-remarks-pc__nomikata-content a::after {
    content: "▶";
    font-size: 10px;
    color: #bda16b;
    flex-shrink: 0;
    transition: transform 0.3s;
}
.btc-contact-remarks-pc__nomikata-content a:hover {
    background-color: #ffffff;
}
.btc-contact-remarks-pc__nomikata-content a:hover::after {
    transform: translateX(3px);
}
.btc-contact-remarks-pc__nomikata-header strong,
.btc-contact-remarks-pc__nomikata-content strong { font-weight: 700; }
.color-gold { color: #bda16b; font-weight: 600; }

/* --- [よくある質問] アコーディオン --- */
.btc-contact-remarks-pc__faq-container {
    margin-bottom: 20px;
}
.btc-contact-remarks-pc__faq-item {
    border-bottom: 1px solid #eee;
}
.btc-contact-remarks-pc__faq-question {
    width: 100%;
    padding: 18px 30px 18px 10px;
    background: none;
    border: none;
    text-align: left;
    font-size: 14px;
    font-weight: 600;
    color: #2d2d2d;
    cursor: pointer;
    position: relative;
    display: block;
    line-height: 1.5;
    font-family: inherit;
}
.btc-contact-remarks-pc__faq-question::before {
    content: "Q.";
    margin-right: 8px;
    color: #1a2a40;
}
.btc-contact-remarks-pc__faq-question::after {
    content: "+";
    position: absolute;
    right: 10px; top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    color: #ccc;
    transition: transform 0.3s;
}
.btc-contact-remarks-pc__faq-item.active .btc-contact-remarks-pc__faq-question::after {
    transform: translateY(-50%) rotate(45deg);
}
.btc-contact-remarks-pc__faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: #f9f9f7;
}
.btc-contact-remarks-pc__faq-answer-inner {
    padding: 20px 15px;
    font-size: 13px;
    line-height: 1.8;
    color: #555;
}
.btc-contact-remarks-pc__faq-answer-inner::before {
    content: "A.";
    font-weight: 700;
    margin-right: 8px;
    color: #d4a373;
}

/* --- [ボタンパーツ] --- */
.btc-contact-remarks-pc__btn-container {
    padding: 0 35px;
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.btc-contact-remarks-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;
    box-sizing: border-box;
    border-radius: 30px;
    gap: 10px;
}
.btc-contact-remarks-pc__form-btn:hover { opacity: 0.8; }
.btc-contact-remarks-pc__btn-navy { background-color: #1a2a40; color: #fff; }
.btc-contact-remarks-pc__btn-white { background-color: #fff; color: #1a2a40; border: 1px solid #1a2a40; }

/* メールアイコンSVG用 */
.btc-contact-remarks-pc__icon-mail {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* 小ぶりなボタン */
.btc-contact-remarks-pc__btn-small {
    font-size: 16px;
    line-height: 1.2;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    margin-left: auto;
    margin-right: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    background-color: #fff !important;
    color: #1a2a40 !important;
    border: 1px solid #1a2a40;
}

.btc-contact-remarks-pc__center-text {
    text-align: center;
    font-size: 13px;
    margin-bottom: 20px;
    line-height: 1.6;
}

#kin-pos { position: absolute; width: 100%; height: 0; bottom: 0; left: 0; }

/* --- [スクロールガイド] --- */
.btc-contact-remarks-pc__scroll-guide {
    position: fixed; left: 15px; bottom: 45px; z-index: 9990; display: flex; flex-direction: column; align-items: center; opacity: 1; transition: opacity 1s ease; pointer-events: none;
}
.btc-contact-remarks-pc__scroll-guide.is-hidden { opacity: 0; }
.btc-contact-remarks-pc__scroll-text {
    font-size: 10px;
    letter-spacing: 0.2em;
    color: #1a2a40;
    writing-mode: vertical-rl;
    text-transform: uppercase;
    margin-bottom: 10px;
    font-weight: 600;
}
.btc-contact-remarks-pc__scroll-line {
    width: 1px;
    height: 50px;
    background: rgba(26, 42, 64, 0.2);
    position: relative;
    overflow: hidden;
}
.btc-contact-remarks-pc__scroll-line::after {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: #1a2a40;
    animation: scrollLineAnim 2s cubic-bezier(0.76, 0, 0.3, 1) infinite;
}
@keyframes scrollLineAnim { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 50.1% { transform: scaleY(1); transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }


/* =============================================
   PC レスポンシブ (768px)
   ============================================= */
@media (min-width: 768px) {
    .btc-contact-remarks-pc__breadcrumb-container { 
        padding: 90px 40px 20px; 
        max-width: 960px;
        margin: 0 auto;
    }
    .btc-contact-remarks-pc__breadcrumbs { font-size: 12px; }

    .btc-contact-remarks-pc__page-header { padding: 20px 40px 40px; }
    .btc-contact-remarks-pc__page-title { font-size: 1.8rem; }
    .btc-contact-remarks-pc__page-title span { font-size: 12px; }

    .btc-contact-remarks-pc__main-content { padding: 0 80px 100px; }
    .btc-contact-remarks-pc__white-box { padding: 40px 40px; }

    .btc-contact-remarks-pc__guide-list a { font-size: 15px; }
    .btc-contact-remarks-pc__nomikata-header { font-size: 15px; }
    .btc-contact-remarks-pc__nomikata-content a { font-size: 14px; }

    .btc-contact-remarks-pc__faq-question { font-size: 15px; }
    .btc-contact-remarks-pc__faq-answer-inner { font-size: 14px; padding: 25px 20px; }

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

    /* main-content(max-width: 800px)の左端を基準に配置、画面が狭い場合は左端25pxにフォールバック */
    .btc-contact-remarks-pc__scroll-guide { left: max(25px, calc(50% - 400px - 30px)); }
    .btc-contact-remarks-pc__scroll-text {
        font-size: 12px;
    }
}

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

    .btc-contact-remarks-pc__page-header { padding: 20px 60px 40px; }

    .btc-contact-remarks-pc__main-content { max-width: 900px; padding: 0 60px 100px; }
    .btc-contact-remarks-pc__white-box { padding: 50px 50px; }

    .btc-contact-remarks-pc__guide-list a { font-size: 16px; }
    .btc-contact-remarks-pc__nomikata-header { font-size: 16px; }
    .btc-contact-remarks-pc__faq-question { font-size: 16px; }
    .btc-contact-remarks-pc__faq-answer-inner { font-size: 15px; }

    /* main-content(max-width: 900px)の左端を基準に配置、画面が狭い場合は左端40pxにフォールバック */
    .btc-contact-remarks-pc__scroll-guide { left: max(40px, calc(50% - 450px)); }
    .btc-contact-remarks-pc__scroll-text {
        font-size: 13px;
    }
}