/* ========================================
   ニュース一覧セクション
======================================== */
.news-list-section {
    padding: var(--section-padding-top-sp) var(--padding-sp) var(--section-padding-bottom-sp);
    background: var(--color-about-bg);
    /* 上側のみ角丸 */
    border-top-left-radius: var(--border-radius-section);
    border-top-right-radius: var(--border-radius-section);
    overflow: hidden;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .news-list-section {
        padding: var(--section-padding-top-pc) var(--padding-pc) var(--section-padding-bottom-pc);
    }
}

.news-list-container {
    max-width: var(--container-width-sp);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--section-gap-sp);
    position: relative;
}

@media (min-width: 768px) {
    .news-list-container {
        gap: 3rem;
        max-width: var(--container-width-pc);
    }
}

/* セクションヘッダー */
.news-list-header {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    align-items: center;
}

@media (min-width: 768px) {
    .news-list-header {
        gap: 2.5rem;
        width: 100%;
    }
}

.news-list-en {
    color: var(--color-text);
    font-size: var(--section-title-en-sp);
    font-family: var(--font-en);
    font-weight: 400;
    letter-spacing: var(--section-title-letter-spacing-en);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-list-en::before,
.news-list-en::after {
    content: '';
    width: 4.5rem;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
    transform: scaleX(0);
    transition: transform 0.8s ease-out;
}

.news-list-en::before {
    transform-origin: right;
}

.news-list-en::after {
    transform-origin: left;
}

@media (min-width: 768px) {
    .news-list-en {
        font-size: var(--section-title-en-pc);
        gap: 1rem;
    }
    
    .news-list-en::before,
    .news-list-en::after {
        width: 6rem;
    }
}

/* アニメーションクラス */
.news-list-en.line-animate::before,
.news-list-en.line-animate::after {
    transform: scaleX(1);
}

.news-list-ja {
    color: var(--color-text);
    font-size: var(--section-title-ja-sp);
    font-family: var(--font-ja);
    font-weight: 500;
    letter-spacing: var(--section-title-letter-spacing-ja);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

@media (min-width: 768px) {
    .news-list-ja {
        font-size: var(--section-title-ja-pc);
    }
}

.news-list-ja.slide-up-animate {
    opacity: 1;
    transform: translateY(0);
}

/* ニュースアイテムリスト */
.news-list-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .news-list-items {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 2.25rem;
        column-gap: 2rem;
    }
}

.news-list-item {
    background: var(--color-white);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.news-list-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

@media (min-width: 768px) {
    .news-list-item {
        border-radius: 1rem;
    }
}

.news-list-link {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem 1.25rem;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    height: 100%;
}

@media (min-width: 768px) {
    .news-list-link {
        padding: 2rem 2.25rem;
        gap: 1.25rem;
    }
}

.news-list-header-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .news-list-header-item {
        gap: 0.75rem;
    }
}

.news-list-date {
    font-size: 0.875rem;
    font-family: var(--font-ja);
    color: var(--color-gray);
    letter-spacing: var(--body-letter-spacing);
    font-weight: 400;
}

@media (min-width: 768px) {
    .news-list-date {
        font-size: 0.9375rem;
    }
}

.news-list-category {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: var(--color-light-gray);
    border-radius: 0.25rem;
    font-size: 0.75rem;
    color: var(--color-text);
    font-weight: 500;
    letter-spacing: 0.03em;
}

@media (min-width: 768px) {
    .news-list-category {
        padding: 0.25rem 0.625rem;
        font-size: 0.75rem;
    }
}

.news-list-new-mark {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 999px;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

@media (min-width: 768px) {
    .news-list-new-mark {
        padding: 0.35rem 0.875rem;
        font-size: 0.6875rem;
    }
}

.news-list-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: var(--body-line-height-sp);
    letter-spacing: var(--body-letter-spacing);
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.news-list-link:hover .news-list-title {
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .news-list-title {
        font-size: 1.25rem;
        line-height: var(--body-line-height-pc);
    }
}

.news-list-thumbnail {
    flex-shrink: 0;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 0.5rem;
    background: var(--color-light-gray);
}

@media (min-width: 768px) {
    .news-list-thumbnail {
        border-radius: 0.75rem;
    }
}

.news-list-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 代替画像のスタイル */
.news-list-thumbnail--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-border) 100%);
}

.news-list-thumbnail--placeholder img {
    width: 60%;
    height: 60%;
    object-fit: contain;
    opacity: 0.3;
}

.news-list-excerpt {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-gray);
    letter-spacing: var(--body-letter-spacing);
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

@media (min-width: 768px) {
    .news-list-excerpt {
        font-size: 1rem;
        line-height: 1.75;
    }
}

/* 空の状態 */
.news-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-gray);
}

.news-empty p {
    font-size: var(--body-font-size-sp);
    line-height: var(--body-line-height-sp);
    letter-spacing: var(--body-letter-spacing);
}

@media (min-width: 768px) {
    .news-empty {
        padding: 4rem 2rem;
    }
    
    .news-empty p {
        font-size: var(--body-font-size-pc);
        line-height: var(--body-line-height-pc);
    }
}

/* ========================================
   ニュース詳細セクション
======================================== */
.news-detail-section {
    padding: var(--section-padding-top-sp) var(--padding-sp) var(--section-padding-bottom-sp);
    background: var(--color-about-bg);
    border-top-right-radius: var(--border-radius-section);
    overflow: hidden;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .news-detail-section {
        padding: var(--section-padding-top-pc) var(--padding-pc) var(--section-padding-bottom-pc);
    }
}

.news-detail-container {
    max-width: var(--container-width-sp);
    margin: 0 auto;
    position: relative;
}

@media (min-width: 768px) {
    .news-detail-container {
        max-width: 900px;
    }
}

.news-detail {
    background: var(--color-white);
    border-radius: 1rem;
    padding: 1.5rem 1.25rem;
}

@media (min-width: 576px) {
    .news-detail {
        padding: 2rem 1.75rem;
    }
}

@media (min-width: 768px) {
    .news-detail {
        border-radius: 1.5rem;
        padding: 3rem 3.5rem;
    }
}

/* メインコンテンツエリア（タイトルと本文のラッパー） */
.news-detail-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 640px;
    margin: 0 auto;
}

/* メイン画像 */
.news-detail-main-image {
    width: 100%;
    max-width: 640px;
    aspect-ratio: 16 / 9;
    border-radius: 0.5rem;
    overflow: hidden;
    margin: 0 auto 1rem;
}

@media (min-width: 768px) {
    .news-detail-main-image {
        border-radius: 0.75rem;
        margin: 0 auto 1.5rem;
    }
}

.news-detail-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-detail-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--color-border-light);
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .news-detail-header {
        margin-bottom: 2rem;
        padding-bottom: 1.5rem;
    }
}

.news-detail-date {
    font-size: 1rem;
    font-family: var(--font-ja);
    color: var(--color-gray);
    letter-spacing: var(--body-letter-spacing);
    font-weight: 400;
}

@media (min-width: 768px) {
    .news-detail-date {
        font-size: 1.125rem;
    }
}

.news-detail-category {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: var(--color-light-gray);
    border-radius: 0.25rem;
    font-size: 0.75rem;
    color: var(--color-text);
    font-weight: 500;
    letter-spacing: 0.03em;
}

@media (min-width: 768px) {
    .news-detail-category {
        padding: 0.25rem 0.5rem;
        font-size: 0.875rem;
    }
}

.news-detail-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1rem;
    line-height: var(--body-line-height-sp);
    letter-spacing: var(--body-letter-spacing);
    width: 100%;
}

@media (min-width: 768px) {
    .news-detail-title {
        font-size: 1.75rem;
        line-height: 1.5;
        margin-bottom: 1rem;
    }
}

.news-detail-content {
    font-size: var(--body-font-size-sp);
    line-height: var(--body-line-height-sp);
    color: var(--color-text);
    letter-spacing: var(--body-letter-spacing);
    width: 100%;
}

@media (min-width: 768px) {
    .news-detail-content {
        font-size: var(--body-font-size-pc);
        line-height: var(--body-line-height-pc);
    }
}

.news-detail-text {
    margin-bottom: 1.5rem;
}

.news-detail-text:last-child {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .news-detail-text {
        margin-bottom: 2rem;
    }
}

.news-detail-text p {
    margin-bottom: 1.5rem;
}

.news-detail-text p:last-child {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .news-detail-text p {
        margin-bottom: 2rem;
    }
}

.news-detail-text img {
    max-width: 100%;
    height: auto;
    margin: 1.25rem 0;
    border-radius: 0.5rem;
}

@media (min-width: 768px) {
    .news-detail-text img {
        margin: 1.5rem 0;
        border-radius: 0.75rem;
    }
}

.news-detail-file {
    margin: 1.5rem 0;
    text-align: center;
}

@media (min-width: 768px) {
    .news-detail-file {
        margin: 2rem 0;
    }
}

.news-detail-file img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

@media (min-width: 768px) {
    .news-detail-file img {
        border-radius: 0.75rem;
    }
}

.news-detail-file .file-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--color-light-gray);
    color: var(--color-text);
    border-radius: 999px;
    text-decoration: none;
    font-weight: 500;
    letter-spacing: var(--body-letter-spacing);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.news-detail-file .file-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background: var(--color-border);
    opacity: 1;
}

@media (min-width: 768px) {
    .news-detail-file .file-link {
        padding: 1.25rem 2.5rem;
        font-size: 1.05rem;
    }
}

.news-detail-back {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--color-border-light);
    text-align: center;
}

@media (min-width: 768px) {
    .news-detail-back {
        margin-top: 3rem;
        padding-top: 3rem;
    }
}

/* ========================================
   ページャー
======================================== */
.pager {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .pager {
        gap: 0.75rem;
    }
}

.pager a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    background: var(--color-primary);
    border-radius: 0.5rem;
    color: var(--color-white);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: var(--body-letter-spacing);
}

@media (min-width: 768px) {
    .pager a {
        min-width: 3rem;
        height: 3rem;
        padding: 0 1rem;
        font-size: 1rem;
    }
}

.pager a:hover {
    background: var(--color-button-hover);
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 140, 0, 0.3);
}

.pager a.current {
    background: var(--color-button-hover);
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(255, 140, 0, 0.3);
}

.pager .overPagerPattern {
    padding: 0 0.5rem;
    color: var(--color-text);
    font-size: 0.9rem;
}

@media (min-width: 768px) {
    .pager .overPagerPattern {
        font-size: 1rem;
    }
}