@charset "UTF-8";

/* --- 基本設定（既存サイトのトーンを維持） --- */
:root {
    --color-bg: #FFFFFF;
    --color-text: #031529;
    --color-light: #526375;
    --color-border: #E2E7ED;
    --font-serif: "a-otf-ryumin-pr6n", "Yu Mincho", "游明朝", serif;
    --font-sans: "a-otf-shin-go-pr6n", "Yu Gothic", "游ゴシック", sans-serif;
    --font-en: "futura-pt", "Helvetica Neue", Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.8;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* --- ファーストビュー --- */
.hero {
    height: 100vh;
    min-height: 560px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
    box-sizing: border-box;
    animation: fadeIn 2.5s ease-out forwards;
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(15px); }
    100% { opacity: 1; transform: translateY(0); }
}

.hero-logo {
    width: 100%;
    max-width: 320px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nowrap-block {
    display: inline-block;
    white-space: nowrap;
}

/* --- コンテンツ --- */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px 100px;
}

section {
    margin-bottom: 120px;
}

.section-title {
    font-family: var(--font-en);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.2em;
    color: var(--color-light);
    text-align: center;
    margin-bottom: 60px;
}

/* --- ABOUT US --- */
.statement {
    font-family: var(--font-serif);
    font-size: 15px;
    line-height: 2.2;
    text-align: justify;
}

.statement p {
    margin-top: 0;
    margin-bottom: 1.5em;
}

.about-block {
    margin-bottom: 72px;
}

.about-block h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: normal;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 10px;
    margin: 0 0 24px;
    color: var(--color-text);
    letter-spacing: 0.1em;
    text-align: left;
}

/* 冒頭のコピーは現在サイトの静かな見え方を維持 */
.about-intro {
    margin-bottom: 88px;
}

.about-lead {
    margin: -4px 0 30px !important;
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.9;
    letter-spacing: 0.08em;
}

/* 4領域：英字ラベル＋日本語見出しの階層を明確化 */
.domain-block {
    margin-bottom: 64px;
}

.domain-block .domain-en {
    font-family: var(--font-en);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--color-light);
    border-bottom: 0;
    padding-bottom: 0;
    margin-bottom: 8px;
}

.domain-block .domain-ja {
    font-family: var(--font-serif);
    font-size: 18px;
    line-height: 1.7;
    letter-spacing: 0.08em;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 10px;
    margin: 0 0 24px;
}

/* ACTIVITIES / HOW WE WORK / VISION
   HTML側でも domain-block を付与し、4領域と完全に同じ見出しルールを適用 */

.statement ul {
    padding-left: 1.5em;
    margin-top: 0;
    margin-bottom: 2em;
}

.statement ul li {
    margin-bottom: 0.8em;
    line-height: 1.9;
}

/* ガバナンス／締め */
.about-governance,
.about-closing {
    margin-top: 84px;
}

.signature {
    margin-top: 40px;
    text-align: right;
    font-family: var(--font-serif);
    line-height: 1.8;
}

/* --- COMPANY / BOARD 共通 --- */
.profile-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.profile-table th,
.profile-table td {
    padding: 24px 10px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.profile-table th {
    width: 25%;
    text-align: left;
    font-weight: normal;
    color: var(--color-light);
}

.profile-table ul,
.profile-table ol {
    margin: 0;
    padding-left: 20px;
}

.profile-table li {
    margin-bottom: 8px;
}

/* 01.〜10. を安定して表示 */
.business-list {
    margin: 0 !important;
    padding-left: 2.8em !important;
    list-style-type: decimal-leading-zero;
}

.business-list li {
    padding-left: 0.35em;
    margin-bottom: 12px;
    line-height: 1.75;
}

.business-list li:last-child {
    margin-bottom: 0;
}

/* 役員欄 */
.company-link {
    display: inline-block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--color-light);
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
    padding-right: 14px;
}

.company-link::after {
    content: "›";
    position: absolute;
    right: 0;
    top: 48%;
    transform: translateY(-50%);
    font-size: 14px;
    font-weight: bold;
    color: var(--color-light);
    transition: all 0.3s;
}

.company-link:hover { color: var(--color-text); }
.company-link:hover::after {
    color: var(--color-text);
    transform: translateY(-50%) translateX(2px);
}

.company-text {
    display: inline-block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--color-light);
}

.break-sp { display: none; }
.break-pc { display: inline; }

/* --- CONTACT --- */
.contact-info {
    text-align: center;
    font-size: 14px;
}

.mail-text {
    display: inline-block;
    font-family: var(--font-en);
    letter-spacing: 0.1em;
    padding: 8px 16px;
    background-color: #F5F7FA;
    border-radius: 4px;
    margin-top: 10px;
}

/* --- フッター --- */
footer {
    font-family: var(--font-en);
    text-align: center;
    font-size: 11px;
    color: var(--color-light);
    margin-top: 100px;
    padding-top: 40px;
}

/* --- スマートフォン --- */
@media (max-width: 600px) {
    .hero {
        min-height: 520px;
    }

    .hero-logo {
        max-width: 240px;
    }

    .container {
        padding: 30px 20px 80px;
    }

    section {
        margin-bottom: 96px;
    }

    .section-title {
        margin-bottom: 48px;
    }

    .statement {
        font-size: 14px;
        line-height: 2.05;
        text-align: left;
    }

    .about-block {
        margin-bottom: 56px;
    }

    .about-intro {
        margin-bottom: 72px;
    }

    .about-block h3 {
        font-size: 16px;
    }

    .about-lead {
        font-size: 15px;
        line-height: 1.9;
    }

    .domain-block .domain-en {
        font-size: 11px;
    }

    .domain-block .domain-ja {
        font-size: 16px;
    }

    .activities-block .domain-en,
    .about-governance .domain-en,
    .about-closing .domain-en {
        font-size: 11px;
    }

    .activities-block .domain-ja,
    .about-governance .domain-ja,
    .about-closing .domain-ja {
        font-size: 16px;
    }

    .about-governance,
    .about-closing {
        margin-top: 68px;
    }

    .break-sp { display: block; }
    .break-pc { display: none; }

    .profile-table th,
    .profile-table td {
        display: block;
        width: 100%;
        box-sizing: border-box;
    }

    .profile-table th {
        border-bottom: none;
        padding: 22px 0 5px;
    }

    .profile-table td {
        padding: 0 0 24px;
    }

    .company-name-wrap {
        display: block;
        line-height: 1.6;
    }

    .business-list {
        padding-left: 2.65em !important;
    }

    .business-list li {
        margin-bottom: 14px;
        line-height: 1.75;
    }
}

/* =========================================================
   FINAL ABOUT US spacing adjustments
   実表示確認後の最終調整
   ========================================================= */

/* 4領域をひとつのまとまりとして見せる */
.domain-block {
    margin-bottom: 52px;
}

/* 意味が連続する段落だけ、通常の段落間余白より詰める */
.statement p.tight-next {
    margin-bottom: 0.55em;
}

/* 4領域内は説明文同士の連続性をさらに明確に */
.domain-block p.tight-next {
    margin-bottom: 0.45em;
}

/* 4領域の最後からACTIVITIESへは適度な区切りを残す */
.domain-block:last-of-type {
    margin-bottom: 64px;
}

@media (max-width: 600px) {
    .domain-block {
        margin-bottom: 46px;
    }

    .statement p.tight-next {
        margin-bottom: 0.5em;
    }

    .domain-block p.tight-next {
        margin-bottom: 0.4em;
    }

    .domain-block:last-of-type {
        margin-bottom: 56px;
    }
}


/* BOARD MEMBERS：理事間の余白を整理 */
.board-member {
    margin-bottom: 42px;
}
.board-member:last-child {
    margin-bottom: 0;
}
@media (max-width: 600px) {
    .board-member {
        margin-bottom: 34px;
    }
}


/* --- Heading hierarchy lock: all ABOUT subsections use identical two-tier heading --- */
.about-block.domain-block > .domain-en {
    font-family: var(--font-en);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--color-light);
    border: 0 !important;
    padding: 0 !important;
    margin: 0 0 8px !important;
}
.about-block.domain-block > .domain-ja {
    font-family: var(--font-serif);
    font-size: 18px;
    line-height: 1.7;
    letter-spacing: 0.08em;
    color: var(--color-text);
    border-top: 0 !important;
    border-left: 0 !important;
    border-right: 0 !important;
    border-bottom: 1px solid var(--color-text) !important;
    padding: 0 0 10px !important;
    margin: 0 0 24px !important;
}
@media (max-width: 600px) {
    .about-block.domain-block > .domain-en {
        font-size: 11px;
    }
    .about-block.domain-block > .domain-ja {
        font-size: 16px;
    }
}