*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Kaku Gothic ProN',Meiryo,sans-serif;color:#222;line-height:1.8;background:#fff}
a{color:#0a58ca;text-decoration:none}a:hover{text-decoration:underline}
img,svg{max-width:100%;height:auto}
.seo_t_inner{width:min(100%,1100px);margin:0 auto;padding:0 20px}
.seo_t_site_header{position:sticky;top:0;background:#fff;border-bottom:1px solid #e5e5e5;z-index:1000}
.seo_t_header_row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.seo_t_logo{font-weight:700;color:#111;font-size:20px}
.seo_t_global_nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.seo_t_global_nav a{color:#111;font-size:14px}
.seo_t_menu_button{display:none;background:#111;color:#fff;border:0;border-radius:8px;padding:8px 12px}
.seo_t_site_footer{border-top:1px solid #e5e5e5;margin-top:48px;padding:32px 0;background:#fafafa}
.seo_t_footer_nav{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.seo_t_copyright{margin:0;color:#666;font-size:14px}
.seo_t_hero{padding:48px 0;background:#f7f7fb}
.seo_t_hero_title{font-size:42px;line-height:1.3;margin:0 0 16px}
.seo_t_section_title,.seo_t_sec_title{font-size:28px;line-height:1.4;margin:0 0 16px}
.seo_t_hero_lead,.seo_t_section_intro{font-size:17px;color:#444}
.seo_t_btn{display:inline-block;padding:12px 18px;border-radius:10px;border:1px solid #111}
.seo_t_btn_primary{background:#111;color:#fff}.seo_t_btn_secondary{background:#fff;color:#111}
.seo_t_hero_actions,.seo_t_cta_links{display:flex;gap:12px;flex-wrap:wrap}
.seo_t_breadcrumb{padding:10px 0;border-bottom:1px solid #eee;background:#fff}
.seo_t_breadcrumb_list{display:flex;gap:10px;list-style:none;padding:0;margin:0;flex-wrap:wrap}
.seo_t_anchor_nav,.seo_t_hub_categories,.seo_t_popular,.seo_t_latest,.seo_t_tools,.seo_t_dictionary,.seo_t_checklist,.seo_t_template,.seo_t_articles,.seo_t_toc,.seo_t_faq,.seo_t_related,.seo_t_share,.seo_t_cta{padding:36px 0}
.seo_t_category_grid,.seo_t_link_cards,.seo_t_related_grid,.seo_t_dictionary_grid,.seo_t_simple_boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.seo_t_category_card,.seo_t_link_card,.seo_t_related_card,.seo_t_dictionary_card,.seo_t_simple_box{border:1px solid #e6e6e6;border-radius:14px;padding:18px;background:#fff}
.seo_t_anchor_nav_list,.seo_t_internal_link_list{display:flex;gap:12px;list-style:none;padding:0;margin:0;flex-wrap:wrap}
.seo_t_anchor_nav_list a{display:block;padding:8px 12px;border:1px solid #ddd;border-radius:999px;color:#222}
.seo_t_ranking_list{margin:0;padding-left:0;list-style:none}
.seo_t_ranking_list li{margin-bottom:10px}.seo_t_ranking_list a{display:flex;gap:12px;align-items:center;border:1px solid #eee;border-radius:12px;padding:12px}
.seo_t_rank_no{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background:#111;color:#fff;font-weight:700}
.seo_t_toc_list{padding-left:1.2rem}
.seo_t_article{padding:12px 0 48px}
.seo_t_article .seo_t_inner{max-width:800px}
.seo_t_section{padding:18px 0}
.seo_t_section_no{font-size:14px;font-weight:700;color:#666;margin:0 0 8px}
.seo_t_note,.seo_t_highlight{border-left:4px solid #0a58ca;background:#f6f9ff;padding:14px 16px;border-radius:8px;margin:18px 0}
.seo_t_quote,.seo_t_pullquote{border-left:4px solid #111;padding:12px 16px;background:#fafafa;margin:18px 0}
.seo_t_cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.seo_t_card{border:1px solid #eee;border-radius:14px;padding:16px;background:#fff}
.seo_t_card_label{font-size:12px;color:#666;margin:0 0 8px}
.seo_t_check_list{padding-left:1.2rem}
.seo_t_linkline,.seo_t_more_link{margin-top:16px}
.seo_t_faq_item{border:1px solid #eee;border-radius:12px;padding:14px;margin-bottom:10px;background:#fff}
.seo_t_faq_item summary{cursor:pointer;font-weight:700}
.seo_t_share_buttons{display:flex;gap:12px;flex-wrap:wrap}
.seo_t_share_buttons a{display:inline-block;padding:10px 14px;border:1px solid #ddd;border-radius:999px;color:#111}
.seo_t_template_flow{display:flex;gap:10px;flex-wrap:wrap}
.seo_t_template_flow span{padding:8px 12px;border-radius:999px;border:1px solid #ddd;background:#fff}
.seo_t_figure_wrap{margin:20px 0}
.seo_t_svg_chart{width:100%;display:block}
.seo_t_404{text-align:center;padding:80px 20px}