:root{--bg:#f5f8ff;--card:#fff;--text:#182033;--muted:#667085;--line:#dfe6f2;--primary:#155eef;--primary2:#0b4fd8;--soft:#eaf1ff;--shadow:0 18px 45px rgba(27,59,124,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:var(--text);background:#fff}a{color:inherit;text-decoration:none}button,input{font:inherit}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(223,230,242,.8)}.nav-wrap{height:68px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px}.brand-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--primary),#6f8fff);color:#fff;font-weight:1000}.nav-wrap nav{display:flex;gap:22px;font-size:14px;font-weight:700;color:#475467}.hero{background:radial-gradient(circle at 75% 10%,#dce8ff 0,rgba(220,232,255,0) 32%),linear-gradient(180deg,#f7faff 0,#fff 100%);border-bottom:1px solid #eef2f8}.hero-inner{padding:76px 0 50px;text-align:center}.eyebrow{display:inline-flex;padding:7px 12px;border-radius:999px;background:#eaf8f2;color:#08764d;font-size:13px;font-weight:800}h1{font-size:clamp(38px,6vw,64px);line-height:1.08;margin:20px 0 18px;letter-spacing:-.04em}.mobile-br{display:none}.lead{max-width:720px;margin:0 auto 30px;color:#526075;font-size:18px;line-height:1.8}.search-card{max-width:820px;margin:auto;background:#fff;border:1px solid #dce5f4;border-radius:22px;padding:22px;box-shadow:var(--shadow);text-align:left;position:relative}.search-card label{display:block;font-size:13px;font-weight:850;margin:0 0 8px;color:#344054}.search-row{display:grid;grid-template-columns:1fr 120px;gap:10px}.search-row input{width:100%;height:58px;border:2px solid #cbd7ea;border-radius:14px;padding:0 18px;font-size:18px;outline:none}.search-row input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(21,94,239,.10)}.search-row button{border:0;border-radius:14px;background:var(--primary);color:#fff;font-weight:900;cursor:pointer}.search-hints{margin-top:10px;font-size:12px;color:#7b8798}.suggestions{position:absolute;left:22px;right:152px;top:107px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 40px rgba(0,0,0,.12);overflow:hidden;z-index:10}.suggestion{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid #eef2f6;cursor:pointer}.suggestion:hover{background:#f7f9fc}.suggestion strong{color:var(--primary)}.suggestion span{font-size:12px;color:var(--muted)}.privacy-note{display:flex;justify-content:center;gap:8px;margin:18px auto 0;color:#607086;font-size:12px;line-height:1.6;text-align:left}.result-section{padding:44px 0 24px}.result-card{border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.result-head{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:24px;border-bottom:1px solid var(--line)}.ext-badge{min-width:84px;height:84px;display:grid;place-items:center;border-radius:20px;background:linear-gradient(135deg,#155eef,#708cff);color:#fff;font-size:24px;font-weight:1000;padding:0 10px}.result-head h2{font-size:28px;margin:0 0 4px}.result-head p{margin:0;color:var(--muted);line-height:1.7}.category-pill{padding:8px 11px;border-radius:999px;background:var(--soft);color:#2457c5;font-size:12px;font-weight:800}.safety{margin:18px 24px 0;padding:14px 16px;border-radius:14px;line-height:1.6;font-size:14px}.safety.normal{background:#effaf5;color:#106442}.safety.caution{background:#fff7e8;color:#8b5200}.safety.danger{background:#fff0f0;color:#9b1c1c}.action-row{display:flex;gap:8px;flex-wrap:wrap;padding:20px 24px 0}.action-chip{padding:8px 12px;background:#f5f7fb;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:800;color:#445066}.os-tabs{display:flex;gap:8px;padding:22px 24px 0;overflow-x:auto}.os-tab{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:12px;font-weight:850;cursor:pointer;white-space:nowrap}.os-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}.os-panel{padding:18px 24px 24px}.os-answer{background:#f8faff;border:1px solid #e1e8f5;border-radius:16px;padding:18px;line-height:1.8}.notes{margin:0 24px 24px;padding:16px 18px;background:#fffbea;border:1px solid #f0e1a8;border-radius:14px}.notes ul{margin:7px 0 0;padding-left:20px;line-height:1.8}.unknown{padding:26px}.unknown h2{margin-top:0}.unknown-tip{padding:13px 15px;background:#f7f9fc;border:1px solid var(--line);border-radius:12px;color:#526075;margin-top:10px}.popular-section,.guide-section{padding:64px 0}.section-title-row{display:flex;align-items:end;justify-content:space-between}.section-kicker{font-size:12px;font-weight:900;letter-spacing:.14em;color:var(--primary)}h2{font-size:32px;letter-spacing:-.03em;margin:7px 0 24px}.count-badge{font-size:12px;color:#667085;background:#f2f4f7;padding:7px 10px;border-radius:999px;margin-bottom:24px}.popular-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.popular-item{border:1px solid var(--line);border-radius:16px;padding:16px;background:#fff;cursor:pointer;transition:.2s}.popular-item:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,50,100,.09)}.popular-item strong{display:block;font-size:19px;color:var(--primary);margin-bottom:5px}.popular-item span{font-size:12px;color:var(--muted)}.category-section{background:#f7f9fd;padding:64px 0}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.category-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;cursor:pointer}.category-card strong{display:block;margin-bottom:7px}.category-card span{font-size:12px;color:var(--muted)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{border:1px solid var(--line);border-radius:18px;padding:22px}.guide-icon{font-size:26px}.guide-card h3{margin:12px 0 8px}.guide-card p{margin:0;color:#667085;line-height:1.75}.guide-card code{background:#f2f4f7;border-radius:6px;padding:2px 5px}.monetize-placeholder{margin:10px auto 70px;border:1px dashed #c9d3e3;background:#fafcff;border-radius:18px;padding:22px;color:#667085}.monetize-placeholder strong{display:block;color:#344054;margin-bottom:5px}.monetize-placeholder span{font-size:13px}footer{border-top:1px solid var(--line);background:#fbfcfe}.footer-inner{padding:32px 0;display:flex;justify-content:space-between;color:#667085;font-size:13px}.footer-inner strong{color:#243148}.footer-inner p{margin:6px 0 0}@media(max-width:900px){.popular-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:660px){.wrap{width:min(100% - 22px,1120px)}.nav-wrap nav{display:none}.nav-wrap{height:60px}.hero-inner{padding:48px 0 34px}.mobile-br{display:block}h1{font-size:42px}.lead{font-size:15px}.search-card{padding:15px;border-radius:18px}.search-row{grid-template-columns:1fr}.search-row input{height:54px;font-size:16px}.search-row button{height:50px}.suggestions{left:15px;right:15px;top:96px}.result-head{grid-template-columns:auto 1fr;padding:18px;gap:13px}.ext-badge{width:66px;min-width:66px;height:66px;font-size:19px;border-radius:16px}.result-head h2{font-size:22px}.result-head .category-pill{grid-column:1/-1;justify-self:start}.safety{margin:14px 18px 0}.action-row,.os-tabs{padding-left:18px;padding-right:18px}.os-panel{padding:16px 18px 20px}.notes{margin:0 18px 18px}.popular-section,.guide-section,.category-section{padding:48px 0}h2{font-size:26px}.popular-grid{grid-template-columns:repeat(2,1fr);gap:9px}.popular-item{padding:13px}.category-grid{grid-template-columns:repeat(2,1fr);gap:10px}.guide-grid{grid-template-columns:1fr}.footer-inner{flex-direction:column;gap:15px}}

.official-links{margin:0 24px 20px;padding:16px 18px;background:#f6f9ff;border:1px solid #d8e4f7;border-radius:14px}
.official-links>strong{display:block;margin-bottom:10px}
.official-link-row{display:flex;flex-wrap:wrap;gap:8px}
.official-link-row a{display:inline-flex;align-items:center;gap:7px;padding:9px 12px;border:1px solid #c9d9f3;border-radius:11px;background:#fff;color:#174ea6;font-size:13px;font-weight:800}
.official-link-row a:hover{border-color:#7da4e8;background:#f0f5ff}
.link-kind{font-size:10px;padding:2px 5px;border-radius:999px;background:#e7efff;color:#275cc2}
.official-links small{display:block;margin-top:10px;color:#667085;line-height:1.6}
@media(max-width:660px){
  .official-links{margin:0 18px 16px;padding:14px}
  .official-link-row{display:grid;grid-template-columns:1fr}
  .official-link-row a{justify-content:space-between}
}

.lang-btn{border:1px solid var(--line);background:#fff;color:#344054;border-radius:10px;padding:8px 11px;font-size:12px;font-weight:850;cursor:pointer;white-space:nowrap}
.lang-btn:hover{border-color:#9bb6e6;color:var(--primary)}
@media(max-width:660px){.nav-wrap{gap:10px}.lang-btn{margin-left:auto}}


/* Monetization-ready layout: placeholders only, no live ad code yet */
.lang-btn{
  border:1px solid var(--line);background:#fff;color:#344054;border-radius:10px;
  padding:8px 11px;font-size:12px;font-weight:850;cursor:pointer;white-space:nowrap
}
.lang-btn:hover{border-color:#9bb6e6;color:var(--primary)}
.monetization-zone{margin-top:8px;margin-bottom:28px}
.monetization-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px;align-items:stretch}
.monetization-card{border:1px solid var(--line);border-radius:18px;background:#fff;padding:18px;min-width:0}
.monetization-card h3{font-size:16px;margin:8px 0 7px}
.monetization-card p{margin:0 0 14px;color:var(--muted);font-size:13px;line-height:1.7}
.ad-label{display:inline-flex;padding:4px 8px;border-radius:999px;background:#f2f4f7;color:#667085;font-size:10px;font-weight:800;letter-spacing:.04em}
.rakuten-slot{background:linear-gradient(180deg,#fff 0,#fffafa 100%)}
.adsense-slot{background:linear-gradient(180deg,#fff 0,#fafcff 100%)}
.slot-placeholder{display:grid;place-items:center;text-align:center;min-height:150px;border:1px dashed #c5cfdf;border-radius:14px;background:#fafcff;color:#667085;padding:18px}
.slot-placeholder span{display:block;font-weight:850;color:#445066}
.slot-placeholder small{display:block;margin-top:6px;line-height:1.55}
.adsense-box{min-height:250px}
.adsense-box>span,.adsense-box>small{display:none}
.adsense-wide-zone{margin-top:8px;margin-bottom:70px}
.adsense-wide-zone>.ad-label{margin-bottom:8px}
.adsense-wide{min-height:110px;width:100%}

@media(max-width:900px){
  .monetization-grid{grid-template-columns:1fr}
  .adsense-box{min-height:140px}
}
@media(max-width:660px){
  .nav-wrap{gap:10px}
  .lang-btn{margin-left:auto}
  .monetization-zone{margin-top:0;margin-bottom:22px}
  .monetization-card{padding:14px}
  .slot-placeholder{min-height:120px;padding:14px}
  .adsense-box{min-height:120px}
  .adsense-wide-zone{margin-bottom:48px}
  .adsense-wide{min-height:100px}
}


/* v5: separate-language static SEO pages */
.lang-link{border:1px solid var(--line);background:#fff;color:#344054;border-radius:10px;padding:8px 11px;font-size:12px;font-weight:850;white-space:nowrap}
.lang-link:hover{border-color:#9bb6e6;color:var(--primary)}
.breadcrumbs{font-size:12px;color:#667085;padding:18px 0 0}.breadcrumbs a{color:#4369a8}.breadcrumbs span{margin:0 5px;color:#98a2b3}
.static-page{padding:24px 0 54px}.static-result{margin-top:8px}
.page-intro{margin:0 24px 24px;padding:18px;border:1px solid var(--line);border-radius:15px;background:#fbfcff;line-height:1.85;color:#4b596e}
.page-intro h2{font-size:20px;margin:0 0 8px}.page-intro p{margin:0}
.os-grid-static{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:20px 24px 24px}
.os-card-static{border:1px solid #e1e8f5;background:#f8faff;border-radius:16px;padding:16px;line-height:1.75}.os-card-static strong{display:block;margin-bottom:5px}
.related-box{margin:0 24px 24px;padding:18px;border:1px solid var(--line);border-radius:15px}.related-box h2{font-size:18px;margin:0 0 12px}.related-links{display:flex;flex-wrap:wrap;gap:8px}.related-links a{padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:#2f5aa7;font-weight:750}
.static-search{max-width:760px;margin:22px auto 0}.static-search .search-row{grid-template-columns:1fr 120px}
.all-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.all-link{border:1px solid var(--line);border-radius:13px;padding:12px;background:#fff}.all-link strong{display:block;color:var(--primary);margin-bottom:4px}.all-link span{font-size:12px;color:var(--muted)}
.category-block{padding-top:24px;scroll-margin-top:80px}.category-block h3{font-size:21px;margin:0 0 13px}
.seo-note{font-size:12px;color:#7a8699;margin-top:10px;line-height:1.65}
@media(max-width:800px){.all-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:660px){.lang-link{margin-left:auto}.os-grid-static{grid-template-columns:1fr;padding:16px 18px 20px}.page-intro,.related-box{margin-left:18px;margin-right:18px}.static-search .search-row{grid-template-columns:1fr}.all-list{grid-template-columns:1fr 1fr}.all-link{padding:10px}}

/* Shared guide components retaining the existing palette, header and ad positions. */
.ext-badge.long-ext{width:84px;max-width:84px;font-size:15px;line-height:1.25;overflow-wrap:anywhere;white-space:normal;text-align:center}
.detailed-guide h1{font-size:30px;margin:0 0 12px;letter-spacing:-.025em;line-height:1.35}.detailed-guide .result-head{grid-template-columns:auto minmax(0,1fr);align-items:center;border-bottom:0;padding-bottom:14px}.detailed-guide .result-head .category-pill{display:inline-block}.guide-intro{margin:0 24px 18px;line-height:1.95;color:#475467}.review-line{margin:14px 24px 18px;color:#667085;font-size:12px}
.guide-glance{margin:0 24px 20px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.guide-glance>div{padding:12px 16px;background:#f8faff;border:1px solid var(--line);border-radius:12px}.guide-glance dt{font-size:12px;color:#667085;margin-bottom:5px}.guide-glance dd{margin:0;font-weight:650;line-height:1.7}.guide-goals{display:flex;flex-wrap:wrap;gap:10px;margin:0 24px 16px}.guide-goals a{display:flex;align-items:center;justify-content:space-between;gap:16px;flex:1;min-width:190px;padding:13px 15px;border:1px solid #cbd8f1;background:#eef4ff;color:#184b9e;border-radius:10px;font-weight:750;font-size:14px;line-height:1.5}.guide-goals a:hover{background:#e0eaff}.guide-index{margin:0 24px;border-bottom:1px solid var(--line);padding-bottom:16px}.guide-index>summary{cursor:pointer;color:#475467;font-size:13px;padding:6px 0}.guide-index .guide-toc{padding:12px 0 0;border:0}.opening-options{display:grid;gap:12px}.opening-option{border:1px solid var(--line);border-radius:12px;background:#f8faff}.opening-option summary{padding:15px 18px;font-weight:750;cursor:pointer;line-height:1.6}.opening-option>p{margin:0 18px 18px}.technical-details summary{font-size:16px;line-height:1.7;cursor:pointer;font-weight:700}.technical-details .format-facts{margin-top:16px}.detailed-guide a:focus-visible,.detailed-guide summary:focus-visible{outline:3px solid #155eef;outline-offset:3px;border-radius:5px}
.guide-toc{display:flex;flex-wrap:wrap;gap:8px;padding:0 24px 22px;border-bottom:1px solid var(--line)}.guide-toc a{padding:7px 10px;background:var(--soft);color:#244d91;border-radius:8px;font-size:13px}
.format-section{margin:26px 24px;padding:0 0 24px;border-bottom:1px solid var(--line);scroll-margin-top:88px;line-height:1.95;min-width:0}.format-section:last-child{border-bottom:0}.format-section h2{font-size:23px;line-height:1.5;margin:0 0 16px}.format-section h3{font-size:17px;margin:0 0 8px}.format-section p{margin:10px 0}.format-section li{margin:12px 0}
.format-section a,.email-link{color:#155eef;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.format-section code{background:#eef2f8;border-radius:4px;padding:2px 5px;font-size:.88em;overflow-wrap:anywhere;white-space:normal}
.format-facts,.lookup-facts{margin:0}.format-facts>div,.lookup-facts>div{display:grid;grid-template-columns:160px minmax(0,1fr);gap:16px;padding:10px 0;border-bottom:1px solid #eef2f6}.format-facts dt,.lookup-facts dt{color:#667085;font-weight:650}.format-facts dd,.lookup-facts dd{margin:0;overflow-wrap:anywhere}
.opening-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.opening-grid>div{padding:18px;border:1px solid var(--line);border-radius:14px;background:#f8faff}.guide-note{color:#667085;font-size:13px;line-height:1.8}.conversion-warning{padding:16px 18px;border-left:3px solid #d99820;background:#fffbef;border-radius:0 8px 8px 0}
.faq-item{margin:10px 0;border:1px solid var(--line);border-radius:12px;padding:14px 18px}.faq-item summary{font-weight:700;cursor:pointer}.faq-item p{margin:10px 0 0;color:#475467}.source-list{list-style:none;padding:0}.source-list li{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fbfcff}.source-type{display:block;font-size:12px;color:#667085;font-weight:700;margin-bottom:6px}.source-list a{font-weight:700}.source-list small{color:#667085}
.trust-links{display:flex;flex-wrap:wrap;gap:12px 18px;max-width:520px;font-size:13px;line-height:1.8}.trust-links a:hover{text-decoration:underline}.trust-page{max-width:920px;margin:auto;padding:26px 0}.trust-page>h1{margin:0 24px 24px;font-size:32px}.trust-page .format-section{margin-top:22px}
.reviewed-guides{padding:32px 0 42px}.reviewed-guides h2{font-size:28px;margin:8px 0 12px}.reviewed-guides>p{color:var(--muted);line-height:1.8;margin-bottom:22px}.instant-lookup{margin-top:18px;padding:20px;text-align:left;border:1px solid var(--line);border-radius:14px;background:#fbfcff;line-height:1.8}.instant-lookup[hidden]{display:none}.lookup-head{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap}.lookup-head strong{color:var(--primary);font-size:23px}.lookup-head span{font-weight:750}.lookup-category{color:var(--muted);font-size:13px;margin:5px 0 12px}.lookup-facts{font-size:14px}.lookup-guide-link{display:inline-block;background:var(--primary);color:white;padding:10px 15px;margin-top:16px;border-radius:9px;font-weight:700}.lookup-message{margin:0}.search-row input{min-width:0}.source-section{margin-top:38px}.detailed-guide .related-links a{text-decoration:none}
@media(max-width:660px){.detailed-guide h1{font-size:25px}.format-section{margin:22px 18px;padding-bottom:20px}.format-section h2{font-size:21px}.guide-toc{padding:0 18px 18px}.review-line{margin:0 18px 16px}.opening-grid{grid-template-columns:1fr}.format-facts>div,.lookup-facts>div{grid-template-columns:1fr;gap:3px}.instant-lookup{padding:16px}.trust-links{max-width:none}.trust-page>h1{margin:0 18px 20px;font-size:27px}.reviewed-guides h2{font-size:24px}.source-list li{padding:14px}.faq-item{padding:12px 14px}}
@media(max-width:660px){.ext-badge.long-ext{width:66px;min-width:66px;max-width:66px;font-size:13px}}
@media(max-width:660px){.guide-intro{margin:0 18px 16px}.guide-glance{margin:0 18px 18px;grid-template-columns:1fr;gap:8px}.guide-glance>div{padding:10px 12px}.guide-goals{margin:0 18px 14px;gap:8px}.guide-goals a{flex-basis:100%;min-width:0;padding:11px 13px}.guide-index{margin:0 18px}.detailed-guide .result-head{padding-bottom:12px}.opening-option summary{padding:13px 14px}.opening-option>p{margin:0 14px 16px}}

/* Canva direction: paper files, cobalt, mint and lavender; shared across languages. */
:root{--ink:#17243b;--muted:#626e82;--primary:#305bea;--soft:#edf2ff;--line:#e0e5ef;--shadow:0 10px 32px rgba(30,45,80,.055)}
html{scroll-behavior:smooth;scroll-padding-top:100px}body{background:#f7f9fd;color:var(--ink);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,system-ui,sans-serif;line-height:1.75}svg{width:24px;height:24px;flex:none}button,input{font:inherit}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #305bea;outline-offset:4px}button{cursor:pointer}.wrap{width:min(100% - 64px,1160px)}
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