:root{--primary-color:#1a3b70;--text-main:#111;--text-sub:#666;--bg-body:#f7f7f7;--bg-card:#fff;--border-color:#e0e0e0;--header-bg:#fff}*{box-sizing:border-box}body{margin:0;padding:0;font-family:"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;background-color:var(--bg-body);color:var(--text-main);line-height:1.7;font-size:15px;letter-spacing:.03em}a{color:var(--text-main);text-decoration:none;border-bottom:1px solid var(--border-color);transition:.2s}a:hover{color:var(--primary-color);border-bottom-color:var(--primary-color)}img{max-width:100%;height:auto}.container{max-width:1000px;margin:0 auto;padding:0 20px}.content-wrapper{display:flex;justify-content:space-between;margin-top:40px;margin-bottom:60px;gap:40px}.main-content{flex:1;min-width:0}.sidebar{width:300px;flex-shrink:0}header.site-header{background-color:var(--header-bg);padding:20px 0;border-bottom:1px solid var(--border-color)}header.site-header h1{font-size:20px;margin:0;font-weight:700}header.site-header h1 a{border:none}header.site-header p{margin:5px 0 0;font-size:11px;color:var(--text-sub)}.mobile-search{display:none;margin-top:15px}.card{background:0 0;padding:0;margin-bottom:30px;border:none}.main-content .card.box{background:#fff;border:1px solid var(--border-color);overflow:hidden;padding:0}.main-content article.card.box{padding:40px;overflow:visible}.main-content .card.box h1{font-size:16px;margin:0;padding:15px 20px;border-bottom:1px solid var(--border-color);background:#f9f9f9;color:var(--primary-color);font-weight:700}.main-content article.card.box h1{background:0 0;border:none;border-bottom:2px solid var(--primary-color);padding:0 0 15px;margin:0 0 30px;color:var(--text-main);font-size:24px}section.card.box h2{font-size:15px;margin:0;padding:15px 20px;border-bottom:1px solid var(--border-color);background:#f9f9f9;color:var(--primary-color)}section.card.box>div,.main-content .card.box .pagination{padding:15px 20px;border-top:1px solid var(--border-color);background:#f9f9f9;margin:0;text-align:center}.post-list{list-style:none;padding:0;margin:0}.post-list li{position:relative;display:flex;flex-direction:column;padding:12px 20px;border-bottom:1px solid var(--border-color);transition:background-color .2s}.post-list li:hover{background-color:#f5f8ff}.post-list li:last-child{border-bottom:none}.post-list li a.title-link{font-weight:700;font-size:15px;color:var(--text-main);border:none;margin-bottom:2px;display:inline-block;line-height:1.4}.post-list li:hover a.title-link{color:var(--primary-color)}.title-link:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}.post-list li>span{display:none}.post-excerpt{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px;color:var(--text-sub);line-height:1.5;margin-top:0}.post-tags{margin-bottom:20px;font-size:12px}.term-meta{background-color:#f9f9f9;padding:20px;margin-bottom:40px;border-left:3px solid var(--text-main);font-size:16px;font-weight:700}.term-section h2{font-size:18px;margin:50px 0 20px;padding-bottom:5px;font-weight:700;color:var(--text-main)}.term-summary{margin-top:50px;padding:20px;border:1px solid var(--border-color);background:#fff;color:var(--text-sub);font-size:14px}.disclaimer-area{margin-top:60px;padding-top:20px;border-top:1px solid var(--border-color);font-size:11px;color:#999}.backlinks{margin-top:60px}.widget{margin-bottom:40px}.widget h3{font-size:13px;font-weight:700;color:var(--text-main);border-bottom:2px solid var(--text-main);padding-bottom:8px;margin-bottom:15px;letter-spacing:.05em}input[type=text]{width:100%;padding:8px 10px;border:1px solid #ccc;background:#fff;border-radius:0;font-size:13px}button,.btn-random{background-color:var(--text-main);color:#fff;border:none;padding:10px;font-size:12px;width:100%;margin-top:10px;display:block;text-align:center;cursor:pointer;border-radius:0}button:hover,.btn-random:hover{background-color:var(--primary-color);color:#fff}.index-group-label{font-size:10px;color:#999;margin:10px 0 4px}.index-matrix{display:flex;flex-wrap:wrap;gap:4px}.index-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:#fff;border:1px solid #ccc;font-size:11px;color:var(--text-main);border-bottom:1px solid #ccc}.index-btn:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.tag-list a:hover{border-color:var(--primary-color);color:var(--primary-color)}footer.site-footer{padding:40px 0;border-top:1px solid var(--border-color);text-align:center;color:var(--text-sub);font-size:11px}@media (max-width:768px){.content-wrapper{flex-direction:column;gap:30px;margin-top:30px}.main-content,.sidebar{width:100%}.mobile-search{display:block}.sidebar-search{display:none}.container{padding:0 15px}.main-content article.card.box{padding:20px}.post-excerpt{margin-top:3px}}