/* Blog Page Styles */
html {
    width: 100%;
    overflow-x: hidden;
}

body {
    width: 100%;
    margin: 0;
    padding: 0;
}

.blog-page {
    padding: 60px 0;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.blog-title {
    font-size: 32px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
}

.blog-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.blog-card {
    background-color: #b5b5b5;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.blog-card:hover {
    transform: translateY(-5px);
}

.thumb-area {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: #999;
}

.thumb-area a {
    display: block;
    width: 100%;
    height: 100%;
}

.thumb-area img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.no-thumb {
    width: 100%;
    height: 100%;
    background-color: #999;
}

.blog-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-date {
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
    display: block;
}

.blog-post-title {
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
}

.blog-post-title a {
    color: #333;
    text-decoration: none;
    display: block;
}

.blog-post-title a:hover {
    color: #000;
}

/* Pagination */
.pagination ul {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 0;
    list-style: none;
}

.pagination li a,
.pagination li span {
    display: inline-block;
    padding: 8px 14px;
    border: 1px solid #333;
    text-decoration: none;
    color: #333;
    border-radius: 4px;
}

.pagination li span.current {
    background: #000;
    color: #fff;
    border-color: #000;
}

/* -------------------- 0. メインビジュアル/ページヘッダー (グレーの部分) -------------------- */
.page-header-section {
    /* グラデーション */
    background: linear-gradient(to right, #f7f7f7 0%, #a6a6a6 100%);
    min-height: 300px; 
    position: relative;
    overflow: hidden; 
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    width: 100%;
}

/* Responsive */
@media (max-width: 1024px) {
    .container {
        max-width: 1000px;
        padding: 0 20px;
    }

    .blog-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }

    .blog-title {
        font-size: 28px;
        margin-bottom: 35px;
    }

    .blog-card {
        background-color: #b5b5b5;
    }

    .blog-date {
        font-size: 13px;
    }

    .blog-post-title {
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }

    .blog-page {
        padding: 50px 0;
    }

    .blog-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .blog-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
        margin-bottom: 40px;
    }

    .blog-card {
        background-color: #b5b5b5;
        border-radius: 10px;
        overflow: hidden;
    }

    .thumb-area {
        aspect-ratio: 16 / 9;
        overflow: hidden;
    }

    .thumb-area img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    .blog-content {
        padding: 15px;
    }

    .blog-date {
        font-size: 12px;
        margin-bottom: 8px;
    }

    .blog-post-title {
        font-size: 14px;
        line-height: 1.5;
    }

    .pagination ul {
        gap: 8px;
    }

    .pagination li a,
    .pagination li span {
        padding: 7px 12px;
        font-size: 13px;
    }
}

@media (max-width: 600px) {
    .container {
        max-width: 100%;
        padding: 0 12px;
    }

    .blog-page {
        padding: 40px 0;
    }

    .blog-title {
        font-size: 20px;
        margin-bottom: 25px;
    }

    .blog-list {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 30px;
    }

    .blog-card {
        background-color: #b5b5b5;
        border-radius: 8px;
    }

    .thumb-area {
        aspect-ratio: 16 / 9;
        overflow: hidden;
    }

    .blog-content {
        padding: 12px;
    }

    .blog-date {
        font-size: 11px;
        margin-bottom: 6px;
    }

    .blog-post-title {
        font-size: 13px;
        line-height: 1.4;
    }

    .blog-post-title a {
        color: #333;
    }

    .pagination ul {
        gap: 6px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination li a,
    .pagination li span {
        padding: 6px 9px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .container {
        max-width: 100%;
        padding: 0 10px;
    }

    .blog-page {
        padding: 30px 0;
    }

    .blog-title {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .blog-list {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 25px;
    }

    .blog-card {
        border-radius: 6px;
    }

    .thumb-area {
        aspect-ratio: 16 / 9;
    }

    .blog-content {
        padding: 10px;
    }

    .blog-date {
        font-size: 10px;
    }

    .blog-post-title {
        font-size: 12px;
    }

    .pagination li a,
    .pagination li span {
        padding: 5px 8px;
        font-size: 10px;
    }
}