/* ===== 全体リセット ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html[lang="ja"] body { font-family: "Helvetica Neue", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif; }
body { background-color: #f8f9fa; color: #333; line-height: 1.8; }

/* ===== ヘッダー ===== */
header { background-color: #2f5f8f; color: #fff; font-size: 28px; font-weight: bold; text-align: center; padding: 25px 0; letter-spacing: 0.2em; }

/* ===== ナビゲーションと統合された言語切り替え ===== */
nav { 
    background-color: #1a3f70; 
    display: flex; 
    justify-content: flex-start; 
    align-items: center; 
    flex-wrap: wrap; 
    padding: 10px 20px; 
    border: none; 
}
nav a { color: #fff; margin: 5px 12px; padding: 8px 15px; border-radius: 4px; font-weight: 500; text-decoration: none; transition: 0.3s; }
nav a.active, nav a:hover { background-color: #fff; color: #1a3f70; }

/* 言語切り替え：ナビ内の右端に配置 */
.lang-switcher { 
    margin-left: auto; 
    font-size: 13px; 
    color: #fff;
    padding-right: 10px;
}
.lang-switcher a { 
    color: #adb5bd; 
    margin: 0 5px; 
    padding: 2px 5px; 
    text-decoration: none; 
    font-weight: normal;
    background-color: transparent !important; /* 导航背景色覆盖 */
}
.lang-switcher a.active { 
    color: #fff !important; 
    font-weight: bold; 
    background-color: transparent !important; 
}
.lang-switcher a:hover {
    color: #fff !important;
    background-color: transparent !important;
}

/* ===== レイアウトコンテナ ===== */
.container { width: 90%; max-width: 1100px; margin: 0 auto 50px; }
.banner { width: 100%; text-align: center; margin-bottom: 30px; }
.banner img { display: block; margin: 25px auto; border-radius: 8px; width: 100%; max-width: 1100px; height: 350px; object-fit: cover; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }

/* ===== セクション見出し ===== */
h2 { color: #2f5f8f; font-weight: 600; margin-bottom: 20px; margin-top: 40px; border-left: 6px solid #2f5f8f; padding-left: 15px; }

/* ===== クイックリンク ===== */
.quick-links { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 30px; }
.quick-links a { flex: 1 1 180px; background-color: #2f5f8f; color: #fff; text-align: center; padding: 18px 10px; border-radius: 8px; text-decoration: none; font-weight: bold; transition: 0.3s; }
.quick-links a:hover { background-color: #1a3f70; transform: translateY(-2px); }

/* ===== テーブルスタイル ===== */
table { width: 100%; border-collapse: collapse; margin-top: 25px; background: #fff; }
th, td { border: 1px solid #ccc; padding: 18px; vertical-align: middle; }
th { background-color: #f0f4f8; color: #2f5f8f; width: 25%; text-align: center; font-weight: 600; }
td { text-align: left; padding-left: 25px; }

/* ===== 特殊レイアウト (取引条件) ===== */
.terms-section { margin-top: 40px; display: flex; flex-wrap: nowrap; gap: 50px; align-items: center; }
.terms-text { flex: 1.2; }
.terms-image { flex: 1; }
.terms-image img { width: 100%; height: auto; border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }

/* ===== フッター ===== */
footer { background-color: #1a3f70; color: #fff; text-align: center; padding: 35px 20px; font-size: 14px; margin-top: 60px; line-height: 1.6; }

@media (max-width: 768px) { 
    .terms-section { flex-direction: column; } 
    .quick-links a { flex: 1 1 100%; }
    header { font-size: 22px; }
    .lang-switcher { margin-left: 0; width: 100%; text-align: center; margin-top: 10px; }
}