/* レイアウトの基本設定（他のaboutサブページと共通） */
.inner_in {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 40px;
}
@media screen and (max-width: 767px) {
    .inner_in { padding: 0 20px; }
}

/* セクション見出しの余白調整 */
.sub_ttl {
    margin-top: 100px !important;
    margin-bottom: 40px !important;
    font-size: 2rem;
    border-left: 5px solid #1a4548;
    padding-left: 15px;
    color: #1a4548;
    clear: both;
}
section:first-of-type .sub_ttl {
    margin-top: 60px !important;
}
@media screen and (max-width: 767px) {
    .sub_ttl {
        margin-top: 70px !important;
        font-size: 1.6rem;
    }
}

/* 所長名表記 */
.kenkyujo_director {
    text-align: right;
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 40px;
}

/* 概要テーブル（機関の名称等） */
.kenkyujo_table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}
.kenkyujo_table th,
.kenkyujo_table td {
    border: 1px solid #ccc;
    padding: 14px 16px;
    text-align: left;
    vertical-align: top;
    line-height: 1.8;
}
.kenkyujo_table th {
    background-color: #f0f4f4;
    color: #1a4548;
    font-weight: 700;
    width: 180px;
}
.kenkyujo_th {
    display: flex;
}
.kenkyujo_th__num {
    flex: 0 0 auto;
    margin-right: 12px;
}
.kenkyujo_th__label {
    flex: 1 1 auto;
}
.kenkyujo_subttl {
    font-weight: 700;
    margin: 20px 0 10px;
}
.kenkyujo_table ol {
    margin: 10px 0 10px 1.5em;
}
.kenkyujo_table ol li {
    margin-bottom: 6px;
}
@media screen and (max-width: 767px) {
    .kenkyujo_table th,
    .kenkyujo_table td {
        display: block;
        width: 100%;
    }
    .kenkyujo_table th {
        border-bottom: none;
    }
}

/* 年度別業績テーブル */
.table_scroll {
    overflow-x: auto;
}
.kenkyujo_table--achievement {
    min-width: 640px;
}
.kenkyujo_table--achievement th,
.kenkyujo_table--achievement td {
    text-align: center;
    width: auto;
}
.kenkyujo_table--achievement thead th {
    background-color: #1a4548;
    color: #fff;
}
.kenkyujo_table--total th,
.kenkyujo_table--total td {
    background-color: #f8f9fa;
    font-weight: 700;
}
.kenkyujo_note {
    font-size: 0.9rem;
    color: #666;
    margin-top: 10px;
}

/* 年度別実績一覧（アコーディオン） */
.kenkyujo_accordion__item {
    border-bottom: 1px solid #e0e0e0;
}
.kenkyujo_accordion__btn {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a4548;
    padding: 20px 30px 20px 0;
    position: relative;
    cursor: pointer;
    font-family: inherit;
}
.kenkyujo_accordion__btn::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4rem;
    color: #1a4548;
}
.kenkyujo_accordion__btn.is-open::after {
    content: '\2212'; /* − */
}
.kenkyujo_accordion__panel {
    display: none;
    padding: 0 0 20px;
    line-height: 1.9;
    color: #333;
}
.kenkyujo_accordion__panel.is-open {
    display: block;
}
.kenkyujo_pdf_link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #1a4548;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid #1a4548;
    border-radius: 4px;
    padding: 8px 16px;
}
.kenkyujo_pdf_link::before {
    content: '\21A7'; /* ↧ ダウンロードを示す矢印 */
    font-size: 1.1rem;
}
.kenkyujo_pdf_link:hover {
    background-color: #1a4548;
    color: #fff;
}