:root,body{--primary:var(--e-global-color-primary,var(--kh-primary));--accent:var(--e-global-color-accent,var(--kh-accent));--bg:var(--e-global-color-khbg,var(--kh-bg));--text:var(--e-global-color-text,var(--kh-text));--panel:var(--e-global-color-secondary,#fff);--muted:var(--e-global-color-khmuted,#536778);--line:var(--e-global-color-khline,#AABCCB);--font:var(--e-global-typography-text-font-family,'Noto Sans JP'),'Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;--heading:var(--e-global-typography-primary-font-family,'Noto Sans JP'),sans-serif;--max:1180px}*{box-sizing:border-box}html{color-scheme:light}body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.95 var(--font);overflow-wrap:anywhere;line-break:strict}h1,h2,h3,h4{font-family:var(--heading);line-height:1.5;color:var(--text);text-wrap:balance;margin:0 0 18px}h1{font-size:clamp(30px,4.2vw,58px);font-weight:700;letter-spacing:.015em}h2{font-size:clamp(24px,2.8vw,34px)}h3{font-size:20px}p{margin:0 0 20px}a{color:var(--primary);text-underline-offset:5px}a:hover{color:#163A56}button,input,select,textarea{font:inherit}button{cursor:pointer}a,button,input,select,textarea,summary{touch-action:manipulation}:is(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--primary);outline-offset:4px}img{display:block;max-width:100%;height:auto}svg{vertical-align:middle}figure{margin:0}::selection{background:var(--accent);color:var(--text)}.kh-shell{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:24px}.elementor .kh-shell{max-width:var(--max);align-self:center}.kh-site-header{position:relative;z-index:30;background:var(--panel);border-top:6px solid var(--primary);border-bottom:2px dashed var(--line)}.kh-header-inner{min-height:84px;display:flex;align-items:center;gap:24px}.kh-brand{flex:none}.kh-brand img{width:210px;max-height:48px;object-fit:contain}.kh-nav{margin-left:auto}.kh-nav ul{display:flex;gap:20px;list-style:none;margin:0;padding:0}.kh-nav a{font-size:13px;color:var(--text);text-decoration:none;font-weight:700}.kh-nav a:hover{text-decoration:underline}.kh-nav .sub-menu{display:none;position:absolute;background:var(--panel);padding:18px;border:1px solid var(--line);border-radius:18px}.kh-nav li:hover>.sub-menu,.kh-nav li:focus-within>.sub-menu{display:block}.kh-nav .sub-menu li+li{margin-top:10px}.kh-header-cta{display:inline-flex;gap:8px;align-items:center;font-size:12px;color:#fff;background:var(--primary);padding:12px 18px;text-decoration:none;font-weight:700;border-radius:999px}.kh-header-cta:hover{color:#fff;background:#163A56}.kh-header-cta svg{width:16px}.kh-menu-toggle{display:none;min-height:44px;background:#fff;border:1px solid var(--primary);color:var(--primary);padding:8px 14px;border-radius:999px}.kh-section{padding:72px 0}.kh-section:nth-child(even){background:#EDF2F7}.kh-eyebrow{display:block;color:var(--primary);font-size:12px;font-weight:700;letter-spacing:.07em;margin-bottom:16px}.kh-lead{color:var(--muted);font-size:17px;max-width:680px}.kh-button,.elementor-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 24px;min-height:48px;font-size:14px;font-weight:700;text-decoration:none;background:var(--primary);color:#fff;border:1px solid var(--primary);border-radius:999px}.kh-button:hover,.elementor-button:hover{background:#163A56;color:#fff}.kh-button-secondary{background:#fff;color:var(--primary)}.kh-button-secondary:hover{background:#EDF2F7;color:var(--primary)}.kh-button svg{width:18px}.kh-hero{padding:50px 0 70px;background:radial-gradient(circle at 12% 24%,#BCE8E5 0 9px,transparent 10px),radial-gradient(circle at 90% 34%,#AABCCB 0 12px,transparent 13px),var(--bg);text-align:center;border-bottom:2px dashed var(--line)}.kh-hero-intro{max-width:850px;margin-inline:auto}.elementor .kh-hero-intro{max-width:850px;align-self:center}.kh-hero h1{line-height:1.4}.kh-hero .kh-lead{margin-inline:auto}.kh-highlight{color:var(--primary);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:12px;text-underline-offset:2px}.kh-hero-art{width:100%;max-width:860px;margin:30px auto 0;aspect-ratio:720/320}.kh-hero .elementor-widget-image{max-width:860px;width:100%;align-self:center}.kh-trust-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:22px 0 0}.kh-trust-row span{font-size:12px;color:var(--muted);border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:7px 13px}.kh-feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.kh-feature-card,.elementor .kh-editor-card{border:1px solid var(--line);border-radius:24px;background:var(--panel);overflow:hidden;padding:22px;min-width:0}.kh-feature-card:nth-child(even),.elementor .kh-editor-card:nth-child(even){background:#EAF5F4}.kh-feature-card img{margin-bottom:18px;aspect-ratio:8/5;border-radius:16px}.kh-feature-card h3{font-size:18px}.kh-feature-card p,.kh-editor-card p{font-size:14px}.kh-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.kh-step{border-bottom:2px dashed var(--line);padding:22px 0;min-width:0}.kh-step-num{display:inline-flex;justify-content:center;align-items:center;width:42px;height:42px;border-radius:50%;background:var(--accent);color:var(--text);font-size:20px;font-weight:700;margin-bottom:16px}.kh-use-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}.kh-use-card,.elementor .kh-use-card{border-radius:32px 32px 32px 8px;border:2px solid var(--line);background:#EAF5F4;padding:28px}.kh-use-card:nth-child(even),.elementor .kh-use-card:nth-child(even){border-radius:32px 32px 8px 32px;background:#EDF2F7}.kh-faq{max-width:850px}.kh-faq details{border:1px solid var(--line);border-radius:20px;background:var(--panel);margin:12px 0;padding:18px 24px}.kh-faq summary{font-weight:700;cursor:pointer;min-height:28px}.kh-answer{margin-top:12px;color:var(--muted)}.kh-answer p:last-child{margin-bottom:0}.kh-post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.kh-post-card{border-radius:24px;border:1px solid var(--line);background:var(--panel);overflow:hidden;min-width:0}.kh-card-image{display:block}.kh-card-image img{width:100%;aspect-ratio:8/5;object-fit:cover}.kh-card-body{padding:24px}.kh-card-body h2,.kh-card-body h3{font-size:19px}.kh-card-body h2 a,.kh-card-body h3 a{color:var(--text);text-decoration:none}.kh-card-body p{font-size:14px;color:var(--muted)}.kh-category{display:block;color:var(--primary);font-size:11px;font-weight:700;margin-bottom:10px}.kh-text-link{font-weight:700;font-size:13px}.kh-text-link svg{width:16px}.kh-cta-section{background:var(--accent)!important;text-align:center;border-top:2px dashed var(--line)}.kh-footer{padding:50px 0 24px;background:#E7EEF4;border-top:6px solid var(--primary)}.kh-footer-top{display:grid;grid-template-columns:1.2fr 1fr;align-items:start;gap:70px}.kh-footer-top p{margin:18px 0 10px}.kh-footer-top small{font-size:12px;color:var(--muted)}.kh-footer ul{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;list-style:none;margin:0;padding:0}.kh-footer a{color:var(--text);font-size:13px}.kh-footer-top img{width:220px;height:auto}.kh-footer-bottom{border-top:1px dashed var(--line);margin-top:32px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}.kh-breadcrumbs{font-size:12px;color:var(--muted);margin:0 0 22px;line-height:1.8}.kh-page-title,.kh-single,.kh-archive,.kh-error{padding-top:50px;padding-bottom:65px}.kh-single>header{max-width:850px;margin:0 auto 36px}.kh-single h1{font-size:clamp(28px,3.5vw,44px)}.kh-post-meta{display:flex;gap:20px;color:var(--muted);font-size:12px;margin-bottom:24px}.kh-single-image{width:100%;border-radius:24px;aspect-ratio:8/5;object-fit:cover}.kh-prose{max-width:800px;margin-inline:auto}.elementor .kh-prose{max-width:800px;align-self:center}.kh-prose h2{margin:44px 0 20px;border-bottom:2px dashed var(--line);padding-bottom:16px;font-size:26px}.kh-prose h3{margin:26px 0 16px}.kh-prose p{margin-bottom:24px}.kh-prose li{margin-bottom:10px}.kh-toc{background:#EDF2F7;border:1px solid var(--line);border-radius:20px;padding:24px;margin:30px 0}.kh-toc ol{padding-left:22px}.kh-callout{max-width:800px;margin:45px auto;border-radius:28px;background:#EAF5F4;border:2px dashed var(--line);padding:30px}.kh-callout h2{font-size:25px}.kh-related{margin-top:50px}.kh-contact{max-width:760px}.kh-contact label,.kh-search label{display:block;font-weight:700;margin:18px 0 7px}.kh-contact input,.kh-contact textarea,.kh-search input{width:100%;border:1px solid var(--muted);border-radius:12px;background:#fff;color:var(--text);padding:12px;min-height:46px}.kh-contact textarea{min-height:160px}.kh-contact .kh-consent{display:flex;align-items:flex-start;gap:12px;font-size:13px}.kh-contact .kh-consent input{width:20px;height:20px;min-height:0;flex:none;margin-top:4px}.kh-contact small{font-size:12px;color:var(--muted)}.kh-honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.kh-status{border:1px solid var(--line);padding:16px;border-radius:16px;background:#EAF5F4}.kh-search{max-width:600px}.kh-search button{margin-top:12px}.kh-pagination{display:flex;justify-content:center;gap:14px;margin-top:30px}.kh-note{background:#EAF5F4;padding:20px;border-radius:20px;border:1px solid var(--line)}.kh-privacy-strip{padding:18px;background:#EDF2F7;font-size:13px;color:var(--muted);border-radius:20px}.kh-asset-image img{width:100%;height:auto}.kh-error{text-align:center}.kh-error .kh-search{margin:auto}.kh-formula{padding:20px;background:#EDF2F7;border-radius:16px;color:var(--primary)}
@media(max-width:1024px){.kh-nav ul{gap:14px}.kh-feature-grid{grid-template-columns:repeat(2,1fr)}.kh-header-cta{display:none}.kh-footer-top{gap:35px}.kh-section{padding:56px 0}.kh-use-grid{grid-template-columns:1fr 1fr}}
@media(max-width:767px){.kh-shell{padding-inline:18px}.kh-header-inner{min-height:72px;gap:12px;justify-content:space-between}.kh-brand img{width:174px}.kh-menu-toggle{display:block}.kh-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;padding:22px;border-bottom:2px solid var(--line);box-shadow:0 8px 16px #20334412}.kh-nav.is-open{display:block}.kh-nav ul{display:flex;flex-direction:column;gap:4px}.kh-nav a{display:block;padding:10px;min-height:44px}.kh-nav .sub-menu{position:static;margin:4px 0}.kh-hero{padding:32px 0 44px}.kh-hero h1{font-size:clamp(31px,9vw,42px)}.kh-hero-art{margin-top:24px}.kh-section{padding:42px 0}.kh-feature-grid,.kh-steps,.kh-use-grid,.kh-post-grid,.kh-footer-top{grid-template-columns:1fr}.kh-feature-card{padding:24px}.kh-footer-top{gap:28px}.kh-footer-bottom{flex-direction:column;gap:12px}.kh-lead{font-size:15px}.kh-faq details{padding:16px 18px}.kh-callout{padding:22px}.kh-single,.kh-archive,.kh-page-title{padding-top:32px}.kh-prose h2{font-size:23px}.kh-trust-row{gap:8px}.kh-trust-row span{padding:6px 10px}}


/* Office Grid: document rail, compact specifications and flat controls. */
.kh-site-header{border-top:0;border-bottom:1px solid var(--line);background:var(--panel)}.kh-header-inner{min-height:78px;gap:24px}.kh-brand img{width:210px}.kh-header-cta,.kh-button,.elementor-button{border-radius:4px}.kh-section{padding:64px 0}.kh-section:nth-child(even){background:#EDF2F7}.kh-hero{padding:42px 0 52px;text-align:left;background:var(--bg);border:0}.kh-office-frame{display:grid;grid-template-columns:180px minmax(0,1fr);border:1px solid var(--line);background:var(--panel);border-radius:4px;overflow:hidden}.kh-office-rail{background:var(--primary);color:#fff;padding:28px 20px}.kh-office-rail p{font-size:12px;letter-spacing:.08em}.kh-office-rail a{display:block;color:#fff;text-decoration:none;border-top:1px solid #FFFFFF55;padding:14px 0;font-size:13px}.kh-office-brief{padding:32px 38px;min-width:0}.kh-office-brief h1{font-size:clamp(30px,3.4vw,48px);margin-bottom:18px}.kh-office-brief .kh-lead{max-width:780px;font-size:16px}.kh-office-brief .kh-hero-art{width:100%;max-width:780px;margin:26px 0 0;aspect-ratio:720/200}.kh-office-brief .elementor-widget-image{width:100%;max-width:780px}.kh-eyebrow{font-size:11px;letter-spacing:.1em}.kh-trust-row{justify-content:flex-start;margin-top:16px;gap:12px}.kh-trust-row span{border:0;padding:0;background:none;font-size:11px;border-radius:0}.kh-highlight{color:var(--primary);text-decoration:none}.elementor .kh-office-frame{gap:0}.elementor .kh-office-rail{padding:28px 20px}.elementor .kh-office-brief{padding:32px 38px}.kh-feature-grid{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}.kh-feature-card,.elementor .kh-editor-card{border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent!important;padding:24px 0;box-shadow:none}.kh-feature-card{display:grid;grid-template-columns:130px 1fr;gap:26px;align-items:center}.kh-feature-card img{width:130px;margin:0;border-radius:3px}.kh-feature-card h3{font-size:19px}.kh-feature-card p:last-child{margin:0}.kh-feature-card p,.kh-editor-card p{font-size:14px}.kh-spec-text{min-width:0}.kh-step{border:1px solid var(--line);background:var(--panel);padding:24px;border-radius:3px}.kh-step-num{background:var(--accent);border-radius:2px;width:34px;height:34px;font-family:'IBM Plex Mono',monospace;font-size:16px}.kh-use-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.kh-use-card,.elementor .kh-use-card{border:1px solid var(--line);border-top:3px solid var(--primary);border-radius:3px!important;background:var(--panel)!important;padding:24px}.kh-faq{max-width:950px}.kh-faq details{border-radius:3px;padding:18px 20px}.kh-post-card{border-radius:3px}.kh-cta-section{background:var(--primary)!important;text-align:left;color:#fff}.kh-cta-section h2,.kh-cta-section p{color:#fff}.kh-cta-section .kh-button{background:#fff;color:var(--primary);border:1px solid #fff}.kh-footer{border:0;border-top:1px solid var(--line);background:#E7EEF4;padding:34px 0 24px}.kh-footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:32px}.kh-footer-top>div{max-width:420px}.kh-footer ul{display:flex;flex-wrap:wrap;max-width:570px;justify-content:flex-end;gap:10px 24px}.kh-footer-bottom{border-top:1px solid var(--line);margin-top:24px;padding-top:18px}.kh-single-image,.kh-callout,.kh-toc,.kh-note,.kh-privacy-strip{border-radius:3px}.kh-prose h2{border-bottom:1px solid var(--line)}.kh-callout{background:#EAF5F4;border:1px solid var(--line)}.kh-toc{background:#EDF2F7}.kh-contact input,.kh-contact textarea,.kh-search input{border-radius:3px}.kh-site-header .kh-menu-toggle{border-radius:3px;background:#fff;color:var(--primary);border:1px solid var(--primary);padding:8px 12px;min-height:44px}.kh-formula{font-family:'IBM Plex Mono','Noto Sans JP',monospace;background:#EDF2F7;border-radius:3px}.kh-breadcrumbs{font-size:11px}.kh-card-body{padding:22px}.kh-header-cta:hover{background:#163A56;color:#fff}
@media(max-width:1024px){.kh-office-frame{grid-template-columns:150px minmax(0,1fr)}.kh-office-brief,.elementor .kh-office-brief{padding:26px}.kh-footer-top{flex-direction:column}.kh-footer ul{justify-content:flex-start}.kh-use-grid{grid-template-columns:1fr}.kh-section{padding:52px 0}}
@media(max-width:767px){.kh-office-frame{grid-template-columns:1fr}.kh-office-rail,.elementor .kh-office-rail{padding:12px 16px}.kh-office-rail p{margin:0 0 6px}.kh-office-rail nav{display:flex;flex-wrap:wrap;gap:18px}.kh-office-rail a{border:0;padding:6px 0;font-size:12px}.kh-office-brief,.elementor .kh-office-brief{padding:22px 18px}.kh-office-brief h1{font-size:30px}.kh-office-brief .kh-lead{font-size:14px}.kh-header-inner{min-height:68px}.kh-hero{padding:26px 0 34px}.kh-section{padding:40px 0}.kh-feature-card{grid-template-columns:84px 1fr;gap:18px;padding:20px 0}.kh-feature-card img{width:84px}.kh-feature-card h3{font-size:17px}.kh-footer-top{gap:24px}.kh-footer ul{gap:10px 20px}.kh-footer-bottom{font-size:11px}.kh-post-grid{grid-template-columns:1fr}}
/* Native Elementor widget sizing and foregrounds inside colored surfaces. */
.elementor .kh-office-rail .elementor-widget-text-editor,.elementor .kh-office-rail .elementor-widget-text-editor p,.elementor .kh-office-rail strong{color:#fff}.elementor .kh-cta-section .elementor-heading-title,.elementor .kh-cta-section .elementor-widget-text-editor{color:#fff}.elementor .kh-cta-section .elementor-button{background:#fff;color:var(--primary);border-color:#fff}.elementor .kh-feature-card{flex-direction:row;flex-wrap:nowrap;align-items:center;gap:26px}.elementor .kh-feature-card>.elementor-widget-image{width:130px;flex:0 0 130px}.elementor .kh-feature-card>.kh-spec-text{width:auto;flex:1;min-width:0}.elementor .kh-feature-card img{width:130px}.kh-cta-section{border-top:1px solid var(--line)}
@media(max-width:767px){.elementor .kh-feature-card{gap:18px}.elementor .kh-feature-card>.elementor-widget-image{width:84px;flex-basis:84px}.elementor .kh-feature-card img{width:84px}}
.elementor .kh-office-rail .elementor-widget-text-editor,.elementor .kh-office-rail .elementor-widget-text-editor p,.elementor .kh-office-rail strong,.elementor .kh-cta-section .elementor-heading-title,.elementor .kh-cta-section .elementor-widget-text-editor{color:var(--panel)!important}
.elementor .kh-office-rail .elementor-widget-text-editor p{font-size:12px;line-height:1.7;margin-bottom:12px}
@media(max-width:767px){.elementor .kh-office-rail .elementor-widget-text-editor p{font-size:11px;margin-bottom:6px}.elementor .kh-office-rail .elementor-widget-text-editor strong{font-size:14px}}
.kh-contact input,.kh-contact textarea,.kh-search input{border-color:var(--muted)}.kh-office-rail a:focus-visible,.kh-cta-section :focus-visible{outline-color:var(--panel)}