:root{--primary-color: #d80032;--bg-color: #fdf8f8;--text-main: #333333;--text-muted: #666666;--border-color: #cccccc;--bg-card: #ffffff}*{box-sizing:border-box}body{font-family:Noto Sans JP,sans-serif;background-color:var(--bg-color);color:var(--text-main);margin:0;padding:0;line-height:1.6}header{background-color:var(--primary-color);background-image:linear-gradient(135deg,var(--primary-color) 0%,rgba(0,0,0,.15) 100%);box-shadow:0 4px 6px #0000001a;padding:0;margin-bottom:2rem}.header-inner{max-width:1800px;width:95%;margin:0 auto;padding:1.2rem 0;display:flex;flex-direction:row;align-items:center;justify-content:space-between}.header-left{display:flex;flex-direction:column;align-items:flex-start}.portal-link{color:#fff;text-decoration:none;font-size:.95rem;font-weight:700;background:#ffffff26;padding:8px 16px;border-radius:20px;transition:background .2s;display:inline-flex;align-items:center;gap:5px}.portal-link:hover{background:#ffffff40;text-decoration:none}.site-title{font-family:"M PLUS Rounded 1c",Noto Sans JP,sans-serif;font-size:2rem;font-weight:800;color:#fff;text-decoration:none;letter-spacing:2px;text-shadow:1px 2px 4px rgba(0,0,0,.3);line-height:1.2}.site-catchphrase{font-size:.95rem;color:#ffffffe6;margin:.2rem 0 0;font-weight:500}.container{max-width:1800px;width:95%;margin:2rem auto;padding:0;display:flex;gap:2rem;flex:1}.sidebar,.right-sidebar{width:240px;flex-shrink:0}.sidebar-widget{background:var(--bg-card);padding:1.5rem;border-radius:12px;box-shadow:0 4px 20px #00000008;margin-bottom:2rem}.sidebar-widget h3{font-size:1.1rem;color:var(--primary-color);margin-top:0;margin-bottom:1rem;border-bottom:2px solid var(--primary-color);padding-bottom:.5rem}.search-container{position:relative}.search-container input{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:6px;font-family:inherit;outline:none}.search-container input:focus{border-color:var(--primary-color);box-shadow:0 0 0 2px #0000000d}.search-results-dropdown{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--border-color);border-top:none;border-radius:0 0 8px 8px;box-shadow:0 8px 16px #0000001a;list-style:none;padding:0;margin:0;z-index:1000;max-height:400px;overflow-y:auto}.search-results-dropdown li a{display:block;padding:10px 12px;border-bottom:1px solid #eee;color:var(--text-main);font-size:.9rem;text-decoration:none;line-height:1.4}.search-results-dropdown li a:hover{background:#f8fafc;color:var(--primary-color)}.search-results-dropdown li:last-child a{border-bottom:none}.search-cat{color:#888;font-size:.8rem;display:block;margin-bottom:2px}.trend-tags-container{display:flex;flex-wrap:wrap;gap:.5rem}.trend-tag{display:inline-block;background:#f1f5f9;color:var(--text-muted);font-size:.85rem;padding:4px 10px;border-radius:15px;text-decoration:none;transition:all .2s}.trend-tag:hover{background:var(--primary-color);color:#fff}.category-list{list-style:none;padding:0;margin:0}.category-list li{margin-bottom:.8rem}.category-list a{display:block;padding:8px 12px;background:#f8fafc;border-radius:6px;color:var(--text-main);text-decoration:none;transition:background .2s,color .2s}.category-list a:hover{background:var(--primary-color);color:#fff}.main-content{flex-grow:1;min-width:0;background:var(--bg-card);padding:2.5rem;border-radius:12px;box-shadow:0 4px 20px #00000008}footer{background:var(--primary-color);color:#fff;text-align:center;padding:2rem 0;margin-top:4rem}@media(max-width:1024px){.container{flex-direction:column}.sidebar,.right-sidebar{width:100%}}@media(max-width:600px){.main-content{padding:1.5rem}.container{margin:1rem auto;padding:0 1rem;gap:1.5rem}.header-inner{flex-direction:column;align-items:flex-start;gap:15px}.site-title{font-size:1.5rem}}h1{font-size:1.8rem;color:#1a1a1a;margin-top:0;border-bottom:3px solid var(--primary-color);padding-bottom:.5rem;line-height:1.4}h2{font-size:1.5rem;color:#222;margin-top:2.5rem;padding-left:.8rem;border-left:5px solid var(--primary-color)}h3{font-size:1.2rem;color:#333;margin-top:2rem;border-bottom:1px dashed #ccc;padding-bottom:.3rem}p{margin-bottom:1.5rem}a{color:var(--primary-color);text-decoration:none;font-weight:500}a:hover{text-decoration:underline}img{max-width:100%;height:auto;border-radius:8px}table{width:100%;border-collapse:collapse;margin-bottom:2rem}th,td{border:1px solid var(--border-color);padding:12px;text-align:left}th{background-color:#f1f5f9;font-weight:700}.back-link-bottom-container{margin-top:3rem;text-align:center;border-top:1px solid var(--border-color);padding-top:2rem}.back-link-bottom{display:inline-block;padding:10px 24px;background-color:var(--bg-color);color:var(--primary-color);font-weight:700;border-radius:30px;text-decoration:none;transition:background-color .2s}.back-link-bottom:hover{background-color:var(--primary-color);color:#fff;text-decoration:none}.affiliate-btn-container{text-align:center;margin:2.5rem 0;position:relative}.affiliate-btn-microcopy{display:inline-block;background:#ff5252;color:#fff;font-size:.85rem;font-weight:700;padding:4px 12px;border-radius:20px;margin-bottom:-15px;position:relative;z-index:10;box-shadow:0 2px 4px #00000026}.affiliate-btn{display:block;margin:10px auto;padding:12px 15px;color:#fff;text-decoration:none;font-weight:700;border-radius:8px;max-width:350px;white-space:nowrap;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 10px #0000001a;text-align:center;font-size:1rem}.affiliate-btn:hover{transform:translateY(-2px);box-shadow:0 6px 15px #0003;color:#fff;text-decoration:none}.amazon-btn{background-color:#f5a623;color:#111}.amazon-btn:hover{color:#111}.rakuten-btn{background-color:#bf0000}.yahoo-btn{background-color:#0022a0}.product-label{background:#f8fafc;border-radius:8px;padding:15px;margin-bottom:20px;box-shadow:0 2px 8px #0000000d}