body {
    font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
    background: #f4f7fb;
    margin: 0;
    padding: 0;
    line-height: 1.8;
    -webkit-text-size-adjust: 100%;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: 40px auto;
}

.page-title {
    text-align: center;
    font-size: 30px;
    margin-bottom: 40px;
    border-bottom: 3px solid #2a6ebb;
    display: inline-block;
    padding-bottom: 6px;
}

.news-item {
    background: #ffffff;
    margin-bottom: 30px;
    padding: 28px;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}

.news-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ddd;
    padding-bottom: 12px;
    margin-bottom: 18px;
}

.news-header h2 {
    font-size: 20px;
    margin: 0;
}

.news-date {
    background: #2a6ebb;
    color: #fff;
    font-size: 14px;
    padding: 6px 14px;
    border-radius: 20px;
}

.news-body {
    font-size: 16px;
    white-space: pre-line;
}

/* ===== スマホ最適化 ===== */
@media screen and (max-width: 600px) {

body {
    font-size: 14px;
    line-height: 1.9;
}

.page-title {
    font-size: 18px;
}

.news-header {
    flex-direction: column;
    align-items: flex-start;
}

.news-header h2 {
    font-size: 18px;
    line-height: 1.6;
}

.news-date {
    margin-top: 8px;
    font-size: 15px;
}

.news-body {
    font-size: 14px;
}

.news-item {
    padding: 18px;
}

}