/* ============================================================
   page-about.css — DX推進プラットフォームとはページ
   Figma: PC node-id=3407-66832 / SP node-id=3499-81431
   ============================================================ */

:root {
    --color-light-blue-50:  #f0f9ff;
    --color-light-blue-200: #c0e4ff;
    --color-step-bg:        #DCF0FF;
}

/* ============================================================
   ページヘッダー
   ============================================================ */
.p-about__header {
    padding: 48px 0 40px;
    margin-bottom: 64px;
}

.p-about__en-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.6;
    letter-spacing: 0.036em;
    margin-bottom: 4px;
}

.p-about__title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.01em;
}

/* ============================================================
   イントロセクション
   ============================================================ */
.p-about__intro {
    padding-bottom: 80px;
}

.p-about__intro-lead {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
    margin-bottom: 40px;
}

/* VISIONブロック（Figma 4015:79069 準拠。左テキスト＋右図 about.png） */
.p-about__vision {
    display: flex;
    align-items: flex-end;
    gap: 36px;
    max-width: 1080px;
    margin: 0 auto;
}

.p-about__vision-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

/* VISIONラベル: Figma bg #e89a2b rounded-full 16px bold white */
.p-about__vision-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background-color: #e89a2b;
    color: var(--color-white);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.2;
    border-radius: 9999px;
}

/* 見出し: Figma 32px bold（1行目 緑 / 2行目 青） */
.p-about__vision-heading {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.01em;
    margin: 0;
}

.p-about__vision-heading-line {
    display: block;
}

.p-about__vision-heading-line--green {
    color: #1e8a5e;
}

.p-about__vision-heading-line--blue {
    color: #2c63c7;
}

/* 区切り線: Figma Gray-420 の 1px ライン */
.p-about__vision-divider {
    width: 100%;
    height: 1px;
    margin: 16px 0;
    border: 0;
    background-color: #cccccc;
}

/* 小見出し: Figma 22px bold black */
.p-about__vision-subhead {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.02em;
    margin: 0;
}

/* 本文: Figma 20px regular #666 */
.p-about__vision-desc {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.p-about__vision-desc p {
    font-size: 20px;
    font-weight: 400;
    color: var(--color-text-sub);
    line-height: 1.5;
    letter-spacing: 0.02em;
    margin: 0;
}

/* 右図: Figma 334x457（下揃え） */
.p-about__vision-figure {
    flex-shrink: 0;
}

.p-about__vision-figure-img {
    display: block;
    width: 334px;
    height: auto;
}

.p-about__intro-body {
    display: flex;
    gap: 24px;
    align-items: center;
}

.p-about__intro-left {
    flex: 1;
    position: relative;
    min-width: 0;
}

.p-about__intro-blob {
    position: absolute;
    top: -40px;
    left: 100px;
    width: 300px;
    height: auto;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

.p-about__intro-catch,
.p-about__intro-connect,
.p-about__intro-tagline,
.p-about__intro-desc {
    position: relative;
    z-index: 1;
}

.p-about__intro-catch {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.01em;
    margin-bottom: 16px;
}

.p-about__intro-connect {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    margin-bottom: 11px;
}

.p-about__intro-connect-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.p-about__intro-connect-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.7;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.p-about__intro-connect-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.01em;
}

.p-about__intro-connect-x {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.5;
    padding-bottom: 4px;
}

.p-about__intro-tagline {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
}

.p-about__intro-desc {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
}

.p-about__intro-right {
    flex-shrink: 0;
    width: 480px;
}

.p-about__intro-diagram {
    width: 100%;
    height: auto;
}

/* ============================================================
   3つの活用方法
   ============================================================ */
.p-about__methods {
    padding: 80px 0;
}

.p-about__section-heading {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.5;
    letter-spacing: 0.01em;
    text-align: center;
    margin-bottom: 64px;
}

.p-about__methods-grid {
    display: flex;
    gap: 16px;
    align-items: stretch;
}

.p-about__method-card {
    flex: 1;
    position: relative;
    min-width: 0;
}

.p-about__method-badge {
    width: 52px;
    height: 52px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.6;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    margin: 0 auto;
    margin-bottom: -26px;
    letter-spacing: 0.02em;
}

.p-about__method-body {
    background-color: var(--color-light-blue-50);
    border-radius: 6px;
    padding: 32px 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    padding-top: 44px;
}

.p-about__method-shoulder {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.7;
    letter-spacing: 0.02em;
}

.p-about__method-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.02em;
}

.p-about__method-desc {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
    flex: 1;
    margin-bottom: 16px;
}

.p-about__method-merit-wrap {
    position: relative;
    margin-top: auto;
}

.p-about__method-merit-label {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.3;
    padding: 4px 24px;
    border-radius: 6px;
    white-space: nowrap;
    z-index: 1;
}

.p-about__method-merit-box {
    background-color: var(--color-light-blue-200);
    border-radius: 6px;
    padding: 24px 16px 16px;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
    height: 100%;
    box-sizing: border-box;
}

/* ============================================================
   クイックナビ
   ============================================================ */
.p-about__quicknav {
    padding: 0;
}

.p-about__quicknav-list {
    display: flex;
    gap: 16px;
}

.p-about__quicknav-item {
    flex: 1;
}

.p-about__quicknav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 8px;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-text);
    text-decoration: none;
}

.p-about__quicknav-link:hover {
    text-decoration: none;
    opacity: 0.8;
}

.p-about__quicknav-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
}

.p-about__quicknav-text {
    flex: 1;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: 0.02em;
}

.p-about__quicknav-arrow {
    flex-shrink: 0;
    color: var(--color-primary);
}

/* ============================================================
   詳細セクション共通（ソリューション / ワークショップ / シーズ）
   ============================================================ */
.p-about__detail-section {
    padding: 80px 0;
}

.p-about__detail-heading {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.5;
    letter-spacing: 0.01em;
    text-align: center;
    margin-bottom: 64px;
}

.p-about__detail-lead {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
    margin-bottom: 64px;
}

/* ---- ご利用手順 ---- */
.p-about__procedure {
    display: flex;
    flex-direction: column;
    gap: 48px;
    margin-bottom: 48px;
}

.p-about__procedure-heading {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.5;
    letter-spacing: 0.01em;
    text-align: center;
}

/* STEPバー */
.p-about__steps-img {
    display: block;
    width: 100%;
    height: auto;
}

/* STEPバッジ（PC非表示・SP表示） */
.p-about__step-badge {
    display: none;
}

/* STEPカード */
.p-about__step-cards {
    display: flex;
    gap: 24px;
    align-items: stretch;
}

.p-about__step-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
    min-width: 0;
}

.p-about__step-img-wrap {
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.p-about__step-img-wrap img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
}

.p-about__step-card-body {
    background-color: var(--color-light-blue-50);
    border-radius: 6px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    flex: 1;
}

.p-about__step-card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.02em;
    text-align: center;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.p-about__step-card-desc {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
}

/* ---- メリット ---- */
.p-about__merits {
    background-color: var(--color-light-blue-50);
    border-radius: 8px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.p-about__merits-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.02em;
    text-align: center;
}

.p-about__merits-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.p-about__merit-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.p-about__merit-header {
    display: flex;
    align-items: center;
    gap: 24px;
}

.p-about__merit-check {
    flex-shrink: 0;
}

.p-about__merit-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.02em;
    flex: 1;
}

.p-about__merit-desc {
    font-size: 20px;
    font-weight: 400;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.02em;
    padding-left: 54px;
}

/* ============================================================
   とちぎスマートシティ
   ============================================================ */
.p-about__smartcity {
    padding: 64px 0 80px;
}

.p-about__smartcity-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    background-color: var(--color-light-blue-50);
    border-radius: 8px;
    padding: 40px 32px;
}

.p-about__smartcity-logo {
    flex-shrink: 0;
    width: 300px;
    height: auto;
}

.p-about__smartcity-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}

.p-about__smartcity-desc {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.7;
    letter-spacing: 0.02em;
    color: var(--color-text);
    width: 100%;
}

.p-about__smartcity-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 16px;
    font-weight: 400;
    color: var(--color-primary);
    text-decoration: underline;
    line-height: 1.7;
    letter-spacing: 0.02em;
}

.p-about__smartcity-link:hover {
    text-decoration: none;
}

/* ============================================================
   PC専用（769px以上）— カード等高 + メリット欄等高（CSS Subgrid）
   ============================================================ */
@media (min-width: 769px) {
    /* flex → CSS Grid: 3カード間で badge/head/desc/merit の行高を共有 */
    .p-about__methods-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        column-gap: 16px;
        grid-template-rows: auto auto 1fr auto;
    }

    /* 各カードが4行すべてにスパン、サブグリッドで行トラック継承 */
    .p-about__method-card {
        grid-row: span 4;
        display: grid;
        grid-template-rows: subgrid;
    }

    /* ボディは下3行（head / desc / merit）にスパン */
    .p-about__method-body {
        grid-row: span 3;
        display: grid;
        grid-template-rows: subgrid;
    }

    /* サブグリッドはgapを継承しないため margin-top でスペースを確保 */
    .p-about__method-desc {
        flex: unset;
        margin-top: 16px;
    }

    /* グローバルの margin-top: auto を上書き */
    .p-about__method-merit-wrap {
        margin-top: 16px;
    }
}

/* ============================================================
   SP（768px以下）
   ============================================================ */
@media (max-width: 768px) {

    /* ページヘッダー */
    .p-about__header {
        padding: 32px 0 24px;
        margin-bottom: 40px;
    }

    .p-about__title {
        font-size: 24px;
    }

    /* イントロ */
    .p-about__intro {
        padding-bottom: 48px;
    }

    .p-about__intro-lead {
        font-size: 16px;
    }

    /* VISIONブロック: SPは縦積み（テキスト上→図下）。Figma 4015:79105 準拠 */
    .p-about__vision {
        flex-direction: column;
        align-items: stretch;
        gap: 24px;
    }

    .p-about__vision-heading {
        font-size: 26px;
        letter-spacing: 0.02em;
    }

    .p-about__vision-subhead {
        font-size: 20px;
    }

    .p-about__vision-desc p {
        font-size: 18px;
        line-height: 1.6;
    }

    .p-about__vision-figure-img {
        width: 100%;
        max-width: 334px;
    }

    .p-about__intro-body {
        flex-direction: column;
        gap: 32px;
    }

    .p-about__intro-blob {
        left: 10px;
    }

    .p-about__intro-catch {
        font-size: 22px;
    }

    .p-about__intro-connect-title {
        font-size: 22px;
    }

    .p-about__intro-right {
        width: 100%;
    }

    /* 3つの活用方法 */
    .p-about__methods {
        padding: 48px 0;
    }

    .p-about__section-heading {
        font-size: 24px;
        margin-bottom: 40px;
    }

    .p-about__methods-grid {
        flex-direction: column;
        gap: 32px;
    }

    .p-about__method-card {
        width: 100%;
    }

    /* クイックナビ */
    .p-about__quicknav-list {
        flex-direction: column;
        gap: 0;
    }

    .p-about__quicknav-link {
        border-bottom-width: 1px;
        padding: 12px 8px;
    }

    .p-about__quicknav-icon {
        width: 30px;
        height: 30px;
    }

    .p-about__quicknav-text {
        font-size: 16px;
    }

    /* 詳細セクション */
    .p-about__detail-section {
        padding: 48px 0;
    }

    .p-about__detail-heading {
        font-size: 24px;
        margin-bottom: 32px;
    }

    .p-about__detail-lead {
        font-size: 16px;
        margin-bottom: 40px;
    }

    .p-about__procedure {
        gap: 32px;
        margin-bottom: 32px;
    }

    .p-about__procedure-heading {
        font-size: 22px;
    }

    /* STEPバー非表示（SP では各カードのバッジで代替） */
    .p-about__steps-img {
        display: none;
    }

    /* STEPカード */
    .p-about__step-cards {
        flex-direction: column;
        gap: 40px;
    }

    .p-about__step-card {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    .p-about__step-card-top {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 24px;
        width: 160px;
    }

    /* STEPバッジ pill */
    .p-about__step-badge {
        display: flex;
        align-items: center;
        gap: 8px;
        background-color: var(--color-primary);
        color: var(--color-white);
        border-radius: 9999px;
        padding: 4px 32px;
        white-space: nowrap;
    }

    .p-about__step-badge-label {
        font-size: 18px;
        font-weight: 400;
        line-height: 1.6;
        letter-spacing: 0.02em;
    }

    .p-about__step-badge-num {
        font-size: 24px;
        font-weight: 700;
        line-height: 1.5;
        letter-spacing: 0.02em;
    }

    .p-about__step-img-wrap {
        width: auto;
        height: auto;
        flex-shrink: 0;
    }

    .p-about__step-card-title {
        font-size: 20px;
        min-height: 60px;
        text-align: center;
        justify-content: center;
    }

    /* メリット */
    .p-about__merits {
        padding: 24px 16px;
    }

    .p-about__merits-title {
        font-size: 20px;
    }

    .p-about__merit-name {
        font-size: 18px;
    }

    .p-about__merit-desc {
        font-size: 16px;
        padding-left: 40px;
    }

    /* スマートシティ */
    .p-about__smartcity {
        padding: 40px 0 48px;
    }

    .p-about__smartcity-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        padding: 24px 16px;
    }

    .p-about__smartcity-logo {
        width: 200px;
    }

    .p-about__smartcity-body {
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}