@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&display=swap');
/* ===== Skin: ZEN — Japanese minimalist, white, single red accent, fine lines ===== */
body.skin-zen{--red:#d7263d;--ink:#1a1a1a;--mut:#777;--faint:#999;--line:#e4e4e4;--bg:#fff;--soft:#fafafa;
  margin:0;font-family:"Noto Sans JP",system-ui,sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.85}
body.skin-zen *{box-sizing:border-box}
body.skin-zen h1,body.skin-zen h2,body.skin-zen h3,body.skin-zen h4{font-family:inherit;font-weight:300;line-height:1.4;color:var(--ink)}
body.skin-zen a{color:var(--red);text-decoration:none}
body.skin-zen a:hover{text-decoration:underline}

body.skin-zen .g-header{background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
body.skin-zen .g-bar{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:16px 24px;flex-wrap:wrap}
body.skin-zen .g-brand{color:var(--ink);font-weight:500;letter-spacing:.04em}
body.skin-zen .g-brand::before{content:"";display:inline-block;width:8px;height:8px;background:var(--red);margin-right:8px;vertical-align:middle}
body.skin-zen .g-nav{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto}
body.skin-zen .g-nav a{color:var(--mut);font-size:13px;padding:6px 10px;font-weight:400}
body.skin-zen .g-nav a:hover{color:var(--ink);text-decoration:none}
body.skin-zen .g-nav a.is-main{color:var(--red)}
body.skin-zen .g-cta{border:1px solid var(--red);color:var(--red);padding:7px 16px;font-size:13px;font-weight:500}
body.skin-zen .g-cta:hover{background:var(--red);color:#fff;text-decoration:none}
body.skin-zen .g-main{max-width:1080px;margin:0 auto;padding:40px 24px 72px}

body.skin-zen .hero{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;padding:8px 0 44px;margin-bottom:44px;border-bottom:1px solid var(--line)}
body.skin-zen .hero-copy{padding-top:8px}
body.skin-zen .hero-h1{font-size:38px;font-weight:300;margin:0 0 18px;letter-spacing:.01em}
body.skin-zen .hero-lead{font-size:16px;color:var(--mut);margin:0 0 22px;font-weight:300}
body.skin-zen .hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0}
body.skin-zen .hero-badges li{border:1px solid var(--line);color:var(--mut);font-size:11px;padding:5px 12px;font-weight:400}
body.skin-zen .hero-steps{margin:22px 0 0;padding-left:18px;color:var(--mut);font-size:13px}
body.skin-zen .hero-steps li{margin-bottom:6px}
body.skin-zen .hero-tool,body.skin-zen .hero-tool-page{}
body.skin-zen .hero-tool-page{max-width:560px;margin:0 auto 44px}

body.skin-zen .cv-widget{background:var(--bg);border:1px solid var(--line);padding:8px}
body.skin-zen .cv-drop{padding:44px 26px;text-align:center;border:1px dashed var(--line);transition:border-color .2s,background .2s}
body.skin-zen .cv-drop.cv-over{border-color:var(--red);background:#fdf3f4}
body.skin-zen .cv-drop-inner{display:flex;flex-direction:column;align-items:center;gap:4px}
body.skin-zen .cv-icon{font-size:30px;color:var(--red);font-weight:300}
body.skin-zen .cv-drop-title{color:var(--ink);font-weight:400;margin:8px 0 2px}
body.skin-zen .cv-drop-hint{color:var(--faint);font-size:13px;margin:0 0 16px;font-weight:300}
body.skin-zen .cv-btn{background:var(--red);color:#fff;border:0;padding:12px 28px;font-weight:500;cursor:pointer;font-family:inherit;font-size:14px;letter-spacing:.03em}
body.skin-zen .cv-btn:hover{background:#b51e32}
body.skin-zen .cv-accept{font-size:11px;color:var(--faint);margin:12px 0 0}
body.skin-zen .cv-status{padding:10px;font-size:13px;text-align:center;color:var(--mut)}
body.skin-zen .cv-status.cv-busy{color:var(--ink)}
body.skin-zen .cv-status.cv-ok{color:var(--red)}
body.skin-zen .cv-status.cv-error{color:#b51e32}
body.skin-zen .cv-result{text-align:center;padding-bottom:8px}
body.skin-zen .cv-download{display:inline-block;border:1px solid var(--red);color:var(--red);padding:11px 24px;font-weight:500}
body.skin-zen .cv-download:hover{background:var(--red);color:#fff;text-decoration:none}
body.skin-zen .cv-loading .cv-drop{opacity:.5}

body.skin-zen .section-h{font-size:20px;font-weight:300;margin:0 0 22px;padding-bottom:10px;border-bottom:1px solid var(--line)}
body.skin-zen .toolgrid-wrap,body.skin-zen .content-body,body.skin-zen .articles-strip,body.skin-zen .other-tools,body.skin-zen .faq{margin:56px 0}
body.skin-zen .toolgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
body.skin-zen .tool-card{display:flex;flex-direction:column;gap:6px;background:var(--bg);padding:22px}
body.skin-zen .tool-card:hover{text-decoration:none;background:var(--soft)}
body.skin-zen .tool-card.is-main{box-shadow:inset 3px 0 0 var(--red)}
body.skin-zen .tool-card-label{color:var(--ink);font-weight:500;font-size:15px}
body.skin-zen .tool-card-short{font-size:11px;color:var(--red)}
body.skin-zen .tool-card-lead{font-size:12.5px;color:var(--mut);font-weight:300}

body.skin-zen .longform{max-width:720px}
body.skin-zen .longform .lead-copy p:first-child,body.skin-zen .lead-copy{font-size:17px;color:var(--ink);font-weight:300}
body.skin-zen .lf-section{margin:36px 0}
body.skin-zen .longform h2{font-size:24px;font-weight:300;margin:36px 0 14px}
body.skin-zen .longform p{margin:0 0 16px;color:#444}
body.skin-zen .longform a{color:var(--red)}

body.skin-zen .art-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
body.skin-zen .art-card{display:flex;flex-direction:column;gap:8px;background:var(--bg);padding:22px}
body.skin-zen .art-card:hover{text-decoration:none;background:var(--soft)}
body.skin-zen .art-cluster{font-size:11px;color:var(--red);letter-spacing:.05em}
body.skin-zen .art-title{color:var(--ink);font-weight:400;font-size:16px;line-height:1.4}
body.skin-zen .art-excerpt{font-size:12.5px;color:var(--mut);font-weight:300}
body.skin-zen .art-meta{font-size:11px;color:var(--faint);margin-top:auto}
body.skin-zen .articles-strip-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
body.skin-zen .more-link{font-size:13px;color:var(--red)}

body.skin-zen .faq-title{font-size:20px;font-weight:300;margin:0 0 20px}
body.skin-zen .faq-list{display:block}
body.skin-zen .faq-item{border-bottom:1px solid var(--line)}
body.skin-zen .faq-q{cursor:pointer;padding:16px 4px;font-weight:400;color:var(--ink);list-style:none}
body.skin-zen .faq-q::-webkit-details-marker{display:none}
body.skin-zen .faq-q::before{content:"+ ";color:var(--red)}
body.skin-zen .faq-item[open] .faq-q{color:var(--red)}
body.skin-zen .faq-item[open] .faq-q::before{content:"− "}
body.skin-zen .faq-a{padding:0 4px 18px;color:var(--mut);font-weight:300}

body.skin-zen .crumbs{font-size:12px;color:var(--faint);margin:24px 0 16px}
body.skin-zen .crumbs span{margin:0 6px}
body.skin-zen .article{max-width:720px}
body.skin-zen .article-head{margin-bottom:8px}
body.skin-zen .article-head h1{font-size:34px;font-weight:300;color:var(--ink);margin:8px 0;letter-spacing:.01em}
body.skin-zen .article-meta{color:var(--faint);font-size:12px}
body.skin-zen .tool-cta,body.skin-zen .tool-cta-foot{border:1px solid var(--line);border-left:3px solid var(--red);padding:18px 22px;display:flex;gap:16px;
  align-items:center;justify-content:space-between;flex-wrap:wrap;margin:24px 0;background:var(--soft)}
body.skin-zen .cta-btn{background:var(--red);color:#fff;padding:10px 20px;font-weight:500}
body.skin-zen .cta-btn:hover{background:#b51e32;color:#fff;text-decoration:none}
body.skin-zen .article-body{color:#444}
body.skin-zen .article-body h2{color:var(--ink);font-size:24px;font-weight:300;margin:34px 0 12px}
body.skin-zen .article-body h3{color:var(--ink);font-size:18px;font-weight:400;margin:24px 0 8px}
body.skin-zen .article-body p{margin:0 0 16px}
body.skin-zen .article-body ul,body.skin-zen .article-body ol{margin:0 0 16px 22px}
body.skin-zen .article-body li{margin-bottom:6px}
body.skin-zen .article-body a{color:var(--red)}

body.skin-zen .page-head{margin-bottom:8px}
body.skin-zen .page-head h1{font-size:32px;font-weight:300;color:var(--ink)}
body.skin-zen .page-head-lead{color:var(--mut);font-size:16px;font-weight:300}
body.skin-zen .cluster-block{margin:44px 0}
body.skin-zen .empty-note{color:var(--faint);font-style:italic;padding:24px 0}
body.skin-zen .error-page{text-align:center;padding:90px 0}
body.skin-zen .error-page h1{font-size:72px;font-weight:300;color:var(--red)}

body.skin-zen .g-footer{background:var(--bg);border-top:1px solid var(--line);margin-top:56px;padding:48px 24px 24px}
body.skin-zen .g-foot-grid{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
body.skin-zen .g-foot-grid h4{color:var(--ink);font-size:12px;font-weight:500;margin:0 0 12px;letter-spacing:.05em}
body.skin-zen .g-foot-grid a{display:block;color:var(--mut);font-size:12.5px;padding:4px 0;font-weight:300}
body.skin-zen .g-foot-grid a:hover{color:var(--red)}
body.skin-zen .g-foot-brand .g-brand{color:var(--ink)}
body.skin-zen .g-copy{max-width:1080px;margin:32px auto 0;border-top:1px solid var(--line);padding-top:20px;font-size:12px;color:var(--faint)}

@media(max-width:760px){
  body.skin-zen .hero{grid-template-columns:1fr;gap:28px}
  body.skin-zen .g-foot-grid{grid-template-columns:1fr 1fr}
  body.skin-zen .hero-h1{font-size:30px}
}