@charset "UTF-8";

/* ==========================================================================
   ob-interview.css
   OBインタビュー記事ページ専用スタイル
   ・すべてのセレクタを .ob- プレフィックスで独立させ、他ページ／style.css へ干渉させない
   ・ヘッダー／フッター／Back to Top／.fade-in は style.css（index.html 準拠）をそのまま使用
   ========================================================================== */

/* --- ページ全体 --- */
.ob-page {
    background-color: #fff;
    color: #222;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.ob-sp-br {
    display: none;
}

/* --- ページ読み込み時アニメーション（Hero） --- */
@keyframes obFadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ob-hero-inner>* {
    opacity: 0;
    animation: obFadeInUp 0.9s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.ob-hero-inner>*:nth-child(1) { animation-delay: 0.10s; }
.ob-hero-inner>*:nth-child(2) { animation-delay: 0.25s; }
.ob-hero-inner>*:nth-child(3) { animation-delay: 0.40s; }
.ob-hero-inner>*:nth-child(4) { animation-delay: 0.60s; }
.ob-hero-inner>*:nth-child(5) { animation-delay: 0.75s; }

/* --- Hero --- */
.ob-hero {
    background-color: #000;
    color: #fff;
    padding: 110px 20px 90px;
    display: flex;
    justify-content: center;
    text-align: center;
}

.ob-hero-inner {
    width: 100%;
    max-width: 820px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.ob-crumb {
    display: flex;
    gap: 10px;
    font-family: 'EB Garamond', serif;
    font-size: 13px;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.5);
}

.ob-crumb a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.3s;
}

.ob-crumb a:hover {
    color: #c5a365;
}

.ob-crumb-current {
    color: #c5a365;
}

.ob-hero-label {
    font-family: 'EB Garamond', serif;
    font-size: clamp(14px, 2vw, 20px);
    letter-spacing: 0.4em;
    color: #c5a365;
}

.ob-hero-title {
    font-size: clamp(30px, 4.5vw, 54px);
    line-height: 1.6;
    letter-spacing: 0.15em;
    font-weight: 400;
}

.ob-hero-lead {
    max-width: 700px;
    font-size: clamp(15px, 2vw, 19px);
    line-height: 2.2;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.86);
}

/* Hero 内のインタビュー一覧リンク */
.ob-hero-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    border-top: 1px solid rgba(197, 163, 101, 0.5);
    padding-top: 30px;
}

.ob-hero-nav a {
    min-width: 230px;
    padding: 16px 24px;
    border: 1px solid rgba(197, 163, 101, 0.7);
    background-color: rgba(255, 255, 255, 0.04);
    color: #fff;
    text-decoration: none;
    font-family: 'EB Garamond', serif;
    font-size: 14px;
    letter-spacing: 0.12em;
    transition: background-color 0.25s, color 0.25s;
}

.ob-hero-nav a:hover {
    background-color: #c5a365;
    color: #111;
}

/* --- 導入部 --- */
.ob-intro {
    max-width: 760px;
    margin: 0 auto;
    padding: 80px 20px 90px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    font-size: 16px;
    line-height: 2.3;
    letter-spacing: 0.05em;
    color: #333;
}

.ob-lede {
    font-size: 17px;
}

.ob-lede-line {
    display: block;
}

/* KEY POINTS */
.ob-keypoints {
    border: 1px solid rgba(197, 163, 101, 0.5);
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background-color: #fcfaf6;
}

.ob-keypoints-title {
    font-family: 'EB Garamond', serif;
    font-size: 15px;
    letter-spacing: 0.35em;
    color: #72613b;
    font-weight: 400;
}

.ob-keypoints-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.ob-keypoints-list li {
    font-size: 15px;
    line-height: 1.9;
    padding-left: 1.3em;
    text-indent: -1.3em;
}

/* --- インタビュー本体 --- */
.ob-voice {
    padding: 100px 20px;
    background-color: #f7f5f0;
}

.ob-voice--dark {
    background-color: #121212;
    color: #fff;
}

.ob-voice-inner {
    max-width: 1000px;
    margin: 0 auto;
}

.ob-voice-head {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 42px;
    align-items: end;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(197, 163, 101, 0.55);
}

.ob-voice-number {
    font-family: 'EB Garamond', serif;
    font-size: 92px;
    font-style: italic;
    line-height: 0.78;
    color: #c5a365;
}

.ob-voice-label {
    margin-bottom: 12px;
    font-family: 'EB Garamond', serif;
    font-size: 14px;
    letter-spacing: 0.35em;
    color: #c5a365;
}

.ob-voice-company {
    font-size: 15px;
    line-height: 1.8;
    letter-spacing: 0.08em;
    color: #555;
}

.ob-voice--dark .ob-voice-company {
    color: rgba(255, 255, 255, 0.65);
}

.ob-voice-role {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.9;
    letter-spacing: 0.05em;
    color: #777;
}

.ob-voice--dark .ob-voice-role {
    color: rgba(255, 255, 255, 0.52);
}

.ob-voice-title {
    margin-top: 42px;
    font-size: clamp(24px, 3.6vw, 40px);
    font-weight: 400;
    line-height: 1.75;
    letter-spacing: 0.1em;
}

/* 動画 */
.ob-video {
    margin-top: 52px;
    position: relative;
    background-color: #050505;
    border: 1px solid rgba(197, 163, 101, 0.5);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
    overflow: hidden;
}

.ob-video video,
.ob-video iframe {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    background-color: #050505;
}

.ob-video iframe {
    border: 0;
}

/* Q&A */
.ob-qa {
    max-width: 760px;
    margin: 66px auto 0;
    display: flex;
    flex-direction: column;
    gap: 50px;
    font-size: 16px;
    line-height: 2.3;
    letter-spacing: 0.05em;
}

.ob-qa-item {
    display: grid;
    grid-template-columns: 76px 1fr;
    gap: 24px;
}

.ob-qa-num {
    font-family: 'EB Garamond', serif;
    font-size: 30px;
    font-style: italic;
    line-height: 1.4;
    color: #c5a365;
}

.ob-qa-q {
    margin-bottom: 18px;
    font-size: clamp(18px, 2.4vw, 23px);
    font-weight: 500;
    line-height: 1.8;
    letter-spacing: 0.08em;
    color: #72613b;
}

.ob-voice--dark .ob-qa-q {
    color: #d6bb7c;
}

.ob-qa-a {
    margin: 0;
}

/* 引用 */
.ob-quote {
    max-width: 840px;
    margin: 68px auto 0;
    padding: 42px 48px;
    border-top: 1px solid #c5a365;
    border-bottom: 1px solid #c5a365;
    text-align: center;
    font-size: clamp(19px, 2.8vw, 28px);
    line-height: 2;
    letter-spacing: 0.1em;
    color: #72613b;
}

.ob-voice--dark .ob-quote {
    color: #d6bb7c;
}

/* --- まとめ --- */
.ob-summary {
    padding: 100px 20px;
    background-color: #fff;
}

.ob-summary-inner {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.ob-summary-label {
    font-family: 'EB Garamond', serif;
    font-size: clamp(13px, 1.8vw, 15px);
    letter-spacing: 0.34em;
    color: #c5a365;
}

.ob-summary-title {
    margin-top: 26px;
    font-size: clamp(26px, 3.6vw, 42px);
    font-weight: 400;
    line-height: 1.7;
    letter-spacing: 0.12em;
}

.ob-summary-lead {
    max-width: 740px;
    margin: 30px auto 0;
    font-size: 16px;
    line-height: 2.2;
    letter-spacing: 0.05em;
    color: #555;
}

.ob-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
    text-align: left;
}

.ob-summary-card {
    padding: 38px 32px;
    border: 1px solid rgba(197, 163, 101, 0.52);
    background-color: #fcfaf6;
}

.ob-summary-card-num {
    display: block;
    font-family: 'EB Garamond', serif;
    font-size: 14px;
    letter-spacing: 0.25em;
    color: #c5a365;
}

.ob-summary-card-title {
    margin: 14px 0;
    font-size: 21px;
    font-weight: 500;
    line-height: 1.7;
    letter-spacing: 0.08em;
}

.ob-summary-card p {
    margin: 0;
    font-size: 14px;
    line-height: 2;
    color: #555;
}

/* --- CTA --- */
.ob-cta {
    padding: 110px 20px;
    background-color: #000;
    background-image: url("/brand-pages/emc/images/bg_08.webp");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #fff;
    display: flex;
    justify-content: center;
    text-align: center;
}

.ob-cta-inner {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.ob-cta-label {
    font-family: 'EB Garamond', serif;
    font-size: clamp(14px, 2vw, 20px);
    letter-spacing: 0.4em;
    color: #c5a365;
}

.ob-cta-title {
    font-size: clamp(26px, 4vw, 44px);
    color: #b7a664;
    line-height: 1.6;
    letter-spacing: 0.1em;
    font-weight: 400;
}

.ob-cta-text {
    font-size: clamp(14px, 2vw, 20px);
    line-height: 2.2;
    letter-spacing: 0.1em;
    color: #eee;
}

.ob-cta-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.ob-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    height: 64px;
    width: min(340px, 80vw);
    color: #fff;
    text-decoration: none;
    border-radius: 32px;
    font-size: 15px;
    letter-spacing: 0.1em;
    transition: opacity 0.3s;
}

.ob-btn:hover {
    opacity: 0.8;
    color: #fff;
}

.ob-btn-brown {
    background-color: #7b684c;
}

.ob-btn-gold {
    background-color: #bea36d;
}

.ob-btn-icon {
    width: 1.25em;
    height: auto;
    margin-top: -0.1em;
}

.ob-back {
    margin-top: 10px;
    font-family: 'EB Garamond', serif;
    color: #c5a365;
    text-decoration: none;
    font-size: 15px;
    letter-spacing: 0.15em;
    border-bottom: 1px solid rgba(197, 163, 101, 0.5);
    padding-bottom: 3px;
    transition: color 0.3s;
}

.ob-back:hover {
    color: #fff;
}

/* --- スクロール連動アニメーション --- */
/* .fade-in / .is-visible は style.css（index.html 共通）を使用。
   ここでは記事向けの補助バリエーションのみ定義する。 */

.ob-video.fade-in {
    transform: translateY(40px);
}

.ob-video.fade-in.is-visible {
    transform: translateY(0);
}

/* KEY POINTS のリストを1項目ずつ表示 */
.ob-keypoints.fade-in .ob-keypoints-list li {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.ob-keypoints.fade-in.is-visible .ob-keypoints-list li {
    opacity: 1;
    transform: translateY(0);
}

.ob-keypoints.fade-in.is-visible .ob-keypoints-list li:nth-child(1) { transition-delay: 0.15s; }
.ob-keypoints.fade-in.is-visible .ob-keypoints-list li:nth-child(2) { transition-delay: 0.28s; }
.ob-keypoints.fade-in.is-visible .ob-keypoints-list li:nth-child(3) { transition-delay: 0.41s; }
.ob-keypoints.fade-in.is-visible .ob-keypoints-list li:nth-child(4) { transition-delay: 0.54s; }

/* Q&A を1問ずつ表示 */
.ob-qa.fade-in .ob-qa-item {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.ob-qa.fade-in.is-visible .ob-qa-item {
    opacity: 1;
    transform: translateY(0);
}

.ob-qa.fade-in.is-visible .ob-qa-item:nth-child(1) { transition-delay: 0.12s; }
.ob-qa.fade-in.is-visible .ob-qa-item:nth-child(2) { transition-delay: 0.26s; }
.ob-qa.fade-in.is-visible .ob-qa-item:nth-child(3) { transition-delay: 0.40s; }

/* まとめカードを順に表示 */
.ob-summary-grid.fade-in .ob-summary-card {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.ob-summary-grid.fade-in.is-visible .ob-summary-card {
    opacity: 1;
    transform: translateY(0);
}

.ob-summary-grid.fade-in.is-visible .ob-summary-card:nth-child(1) { transition-delay: 0.12s; }
.ob-summary-grid.fade-in.is-visible .ob-summary-card:nth-child(2) { transition-delay: 0.26s; }
.ob-summary-grid.fade-in.is-visible .ob-summary-card:nth-child(3) { transition-delay: 0.40s; }

/* 読了プログレスバー（ヘッダー下端に表示） */
.ob-progress {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: 2px;
    z-index: 999;
    background-color: rgba(197, 163, 101, 0.15);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.ob-progress.is-active {
    opacity: 1;
}

.ob-progress-bar {
    width: 0;
    height: 100%;
    background-color: #c5a365;
    transform-origin: left center;
}

/* --- レスポンシブ --- */
/* ヘッダーがオーバーレイ表示になる幅では、プログレスバーを画面最上部へ */
@media (max-width: 1000px) {
    .ob-progress {
        top: 0;
    }

    .ob-summary-grid {
        grid-template-columns: 1fr;
    }

    .ob-voice-head {
        grid-template-columns: 115px 1fr;
        gap: 28px;
    }

    .ob-voice-number {
        font-size: 74px;
    }
}

@media (max-width: 900px) {
    .ob-hero {
        padding: 80px 20px 70px;
    }

    .ob-intro {
        padding-top: 60px;
        padding-bottom: 70px;
    }

    .ob-voice {
        padding: 80px 20px;
    }

    .ob-summary {
        padding: 80px 20px;
    }

    .ob-cta {
        padding: 80px 20px;
        background-attachment: scroll;
    }

    .ob-lede {
        font-size: 16px;
    }
}

@media (max-width: 600px) {
    .ob-sp-br {
        display: block;
    }

    .ob-hero-title {
        letter-spacing: 0;
    }

    .ob-crumb {
        flex-wrap: wrap;
        justify-content: center;
    }

    .ob-hero-nav {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .ob-hero-nav a {
        min-width: 0;
        width: 100%;
    }

    .ob-lede-line {
        display: inline;
    }

    .ob-keypoints {
        padding: 30px 22px;
    }

    .ob-voice-head {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .ob-voice-number {
        font-size: 64px;
    }

    .ob-voice-title {
        margin-top: 32px;
        font-size: 20px;
        letter-spacing: 0.02em;
    }

    .ob-video {
        margin-top: 36px;
    }

    .ob-qa {
        margin-top: 48px;
        gap: 40px;
    }

    .ob-qa-item {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .ob-quote {
        padding: 32px 18px;
        font-size: 18px;
        line-height: 1.95;
    }

    .ob-summary-lead {
        text-align: left;
    }

    .ob-btn {
        width: 100%;
        max-width: 340px;
    }

    .ob-cta-btns {
        flex-direction: column;
        align-items: center;
    }
}

/* --- アニメーションを控えたい環境への配慮 --- */
@media (prefers-reduced-motion: reduce) {

    .ob-hero-inner>*,
    .ob-keypoints.fade-in .ob-keypoints-list li,
    .ob-qa.fade-in .ob-qa-item,
    .ob-summary-grid.fade-in .ob-summary-card {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        transition: none !important;
    }
}