/* 最短・最省化調整システムセクション */
.optimization-section {
    padding: 80px 0;
    background-color: #ffffff;
}

/* サイドバー（共通スタイルはcommon.cssに移動） */
.optimization-section .section-sidebar {
    position: sticky;
    top: 0;
    align-self: flex-start; /* stretchを上書き */
    height: calc(100vh - 78px); /* 罫線表示のため高さを設定 */
}

.optimization-section .section-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 72px;
    box-sizing: border-box;
    padding: 0;
}

/* メインコンテンツ */
.optimization-section .section-main {
    display: flex;
    flex-direction: column;
    gap: 40px;
    width: 848px;
    flex-shrink: 0;
    position: relative;
}

.optimization-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    width: 100%;
}

/* セクションバッジ */
.section-badge {
    background-color: #2f7340;
    color: white;
    padding: 10px 40px;
    border-radius: 32px;
    font-weight: 700;
    font-size: 20px;
    letter-spacing: 8px;
    white-space: nowrap;
    display: inline-block;
    margin-bottom: 40px;
}

/* シミュレーションセクション */
.simulation-section {
    margin-bottom: 80px;
}

.simulation-intro {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2.34px;
    line-height: 2.4;
    color: #2f7340;
    margin-bottom: 40px;
}

.simulation-intro .intro-capsule {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2.34px;
    line-height: 2.4;
    color: #2f7340;
    margin-bottom: 16px;
}

.simulation-intro .intro-description {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2.34px;
    line-height: 2.4;
    color: #2f7340;
    margin: 0;
}

.simulation-intro .intro-description ul,
.simulation-intro ul.intro-description {
    margin: 16px 0 0 0;
    padding-left: 24px;
    list-style: disc;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2.34px;
    line-height: 2.4;
    color: #2f7340;
}

.simulation-intro .intro-description li,
.simulation-intro ul.intro-description li {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2.34px;
    line-height: 2.4;
    color: #2f7340;
    margin: 0;
}

.simulation-challenges {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2.4px;
    line-height: 2.4;
    color: #2f7340;
    margin-bottom: 40px;
}

.simulation-challenges p {
    margin: 16px 0 0 0;
}


.simulation-cta {
    display: flex;
    justify-content: flex-end;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background-color: #2f7340;
    color: white;
    padding: 12px 24px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 3.2px;
}

.cta-button .arrow {
    width: 17px;
    height: 20px;
}

/* システム概要セクション */
.system-overview-section {
}

.overview-subsection h3 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 3.12px;
    line-height: 1.8;
    color: #2f7340;
    margin-bottom: 32px;
}

.overview-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.overview-image {
    flex-shrink: 0;
}

.overview-image img {
    width: 320px;
    height: auto;
    object-fit: cover;
    border-radius: 0;
}

.overview-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(5, 1fr);
    gap: 0;
    flex: 1;
    width: 488px;
    height: 240px;
}

.overview-item {
    background-color: white;
    padding: 10px;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 3.2px;
    line-height: 1.55;
    color: #2f7340;
    text-align: left;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* 発災区切り */
.disaster-divider {
    display: flex;
    align-items: center;
    margin: 64px 0;
    gap: 16px;
}

.disaster-divider span {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 3.12px;
    color: #2f7340;
}

.divider-line {
    flex: 1;
    height: 1px;
    background-color: #2f7340;
}

/* プロセスステップ */
.process-step {
    margin-bottom: 80px;
}

.process-step h3 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 3.12px;
    line-height: 1.8;
    color: #2f7340;
    margin-bottom: 32px;
}

.process-flow {
    display: flex;
    gap: 16px;
    align-items: center;
}

.process-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 250px;
}

.process-text {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    line-height: 1.6;
    color: #2f7340;
}

.process-image {
    width: 100%;
}

.process-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 0;
}

.process-arrow {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    padding-top: 32px;
}

.process-arrow img {
    width: 17px;
    height: auto;
}

/* arrow2用の幅調整 - 3番目のプロセスステップ（支援自治体の返答） */
.process-step-3 .process-arrow {
    width: 290px;
}

.process-step-3 .process-arrow img {
    width: 290px;
    height: auto;
}

/* arrow3用の幅調整 - 4番目のプロセスステップ（被災自治体の最終確認） */
.process-step-4 .process-arrow {
    width: 220px;
}

.process-step-4 .process-arrow img {
    width: 220px;
    height: auto;
}

.process-note {
    margin-top: 16px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2.08px;
    line-height: 1.6;
    color: #2f7340;
}

/* 情報共有セクション */
.information-sharing {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sharing-text {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2.08px;
    line-height: 1.8;
    color: #2f7340;
}

.sharing-images {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    height: 188px;
}

.sharing-image {
    flex: 1;
    max-width: 250px;
}

.sharing-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 0;
}

.sharing-arrow {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 188px;
}

.sharing-arrow img {
    width: 17px;
    height: auto;
}

/* メイン要素のオーバーライド */
.optimization-section {
    margin: 0;
    padding: 80px 0;
    max-width: none;
}

/* サイドバーの区切り線を修正 */
.optimization-section .section-sidebar {
    align-items: flex-start;
}

/* サイドバー区切り線はcommon.cssで共通化済み */


/* 戻るボタン */
.back-button a {
    display: inline-flex;
    align-items: center;
    padding: 8px 24px;
    border: 1px solid #2f7340;
    border-radius: 999px;
    color: #2f7340;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 2px;
    font-size: 14px;
    margin-bottom: 16px;
}

.back-button a.back-arrow {
    background: url("../../images/button_arrow_green_back.png") no-repeat left 16px center / 16px 18px;
    padding-left: 48px;
    background-size: 16px 18px;
}