/* ── shared styles for static (crawler-visible) pages ── */
:root{
  --green:#2A9055;--green-lt:#E6F6EE;--green-dk:#1F7040;
  --bg:#F4FCF7;--card:#FFF;--border:#D4EDDB;
  --text:#2D2218;--muted:#9A8880;--faint:#C8BEB9;
  --r-md:14px;--r-full:9999px;
  --sh-sm:0 2px 8px rgba(45,34,24,.07);
  --font:'Hiragino Sans','Hiragino Kaku Gothic ProN','BIZ UDPGothic','Yu Gothic','Meiryo',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{height:100%;-webkit-font-smoothing:antialiased}
body{min-height:100dvh;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);overflow-x:hidden}
a{color:var(--green);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--green-dk)}

/* site header (top navigation) – matched to tool intro branding */
.site-header{position:sticky;top:0;z-index:50;background:#fff;padding:14px 16px 0;box-shadow:0 1px 0 rgba(45,34,24,.04)}
.site-header-inner{display:flex;flex-direction:column;align-items:stretch;gap:14px;max-width:1040px;margin:0 auto}
.site-logo{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--green);flex-shrink:0;align-self:flex-start;padding:2px 2px 0}
.site-logo:hover .site-logo-name{color:var(--green-dk)}
.site-logo-icon{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:54px;height:54px}
.site-logo-icon svg{width:100%;height:100%;display:block}
.site-logo-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.site-logo-name{font-size:26px;font-weight:900;color:var(--green);letter-spacing:.04em;line-height:1.1}
.site-logo-tagline{font-size:13.5px;font-weight:800;color:var(--text);letter-spacing:.06em;white-space:nowrap;margin-top:4px;line-height:1.6}
.site-nav{display:flex;gap:8px 22px;flex-wrap:wrap;align-items:center;justify-content:flex-start;background:var(--green);padding:13px 18px;border-radius:14px 14px 0 0;margin:0 -16px;box-shadow:inset 0 -2px 0 rgba(0,0,0,.08)}
.site-nav a{font-size:15px;font-weight:800;color:#fff;text-decoration:none;padding:6px 10px;white-space:nowrap;letter-spacing:.06em;border-radius:8px;transition:background-color .12s ease,color .12s ease}
.site-nav a:hover{background:rgba(255,255,255,.18);color:#fff}
.site-nav a[aria-current=page]{background:#fff;color:var(--green-dk);box-shadow:0 1px 3px rgba(0,0,0,.12)}

/* main content container */
.static-main{max-width:720px;margin:0 auto;padding:28px 20px 60px}
.static-main h1{font-size:26px;font-weight:900;color:var(--green-dk);letter-spacing:-.02em;line-height:1.4;margin-bottom:8px}
.static-main .lead{color:var(--muted);font-size:14px;margin-bottom:24px}
.static-main h2{font-size:19px;font-weight:800;color:var(--text);margin:32px 0 10px;padding-bottom:6px;border-bottom:1.5px solid var(--border)}
.static-main h3{font-size:16px;font-weight:800;color:var(--green-dk);margin:22px 0 8px}
.static-main p{margin-bottom:14px}
.static-main ul,.static-main ol{margin:8px 0 16px 22px}
.static-main li{margin-bottom:6px}
.static-main .meta{font-size:13px;color:var(--muted);margin-top:32px;padding-top:16px;border-top:1px dashed var(--border)}
.static-main .card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r-md);padding:18px;margin:16px 0;box-shadow:var(--sh-sm)}
.static-main .cta{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;background:var(--green);color:#fff;border-radius:var(--r-full);font-weight:700;text-decoration:none;margin-top:8px}
.static-main .cta:hover{background:var(--green-dk);color:#fff}
.static-main table{width:100%;border-collapse:collapse;margin:12px 0 18px;font-size:14px}
.static-main th,.static-main td{padding:8px 10px;border:1px solid var(--border);text-align:left;vertical-align:top}
.static-main th{background:var(--green-lt);font-weight:700;color:var(--green-dk)}

/* site footer */
.site-footer{background:#fff;border-top:1.5px solid var(--border);padding:24px 16px;margin-top:40px}
.site-footer-inner{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}
.site-footer-nav{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center}
.site-footer-nav a{font-size:13px;font-weight:600;color:var(--muted);text-decoration:none}
.site-footer-nav a:hover{color:var(--green)}
.site-footer-copy{font-size:12px;color:var(--faint)}

/* contact form (mailto-based) */
.contact-form label{display:block;font-size:13px;font-weight:700;color:var(--muted);margin:12px 0 6px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:10px 12px;border:1.5px solid var(--border);border-radius:var(--r-md);font-family:inherit;font-size:15px;background:#fff;color:var(--text)}
.contact-form textarea{min-height:140px;resize:vertical;line-height:1.6}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(42,144,85,.12)}
.contact-form .submit{display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding:13px 26px;background:var(--green);color:#fff;border:none;border-radius:var(--r-full);font-weight:700;font-size:15px;cursor:pointer}
.contact-form .submit:hover{background:var(--green-dk)}
.contact-form .note{font-size:12px;color:var(--faint);margin-top:10px;line-height:1.7}

/* column index + article */
.column-breadcrumb{font-size:13px;color:var(--muted);margin-bottom:12px}
.column-breadcrumb a{color:var(--green);text-decoration:none}
.column-index-head{margin-bottom:18px}
.column-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin:18px 0 28px}
.column-card{display:flex;flex-direction:column;background:var(--card);border:1.5px solid var(--border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .15s ease,box-shadow .15s ease}
.column-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(14,92,50,.10)}
.column-card-img{display:block;aspect-ratio:16/9;background:var(--green-lt);overflow:hidden}
.column-card-img img{width:100%;height:100%;object-fit:cover;display:block}
.column-card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.column-card-tags{display:flex;flex-wrap:wrap;gap:4px}
.column-tag{display:inline-block;font-size:11px;font-weight:700;color:var(--green-dk);background:var(--green-lt);border-radius:9999px;padding:2px 9px}
.column-card-ttl{font-size:16px;font-weight:900;color:var(--text);line-height:1.45;margin:0;letter-spacing:-.01em}
.column-card-ttl a{color:inherit;text-decoration:none}
.column-card-ttl a:hover{color:var(--green)}
.column-card-desc{font-size:13px;color:var(--muted);line-height:1.6;margin:0;flex:1}
.column-card-meta{font-size:12px;color:var(--faint);margin-top:2px}
.column-relguides{margin-top:32px;padding:18px;background:var(--green-lt);border-radius:var(--r-md);border:1.5px dashed var(--green)}
.column-relguides h2{margin-top:0;border-bottom:none;font-size:16px;color:var(--green-dk)}
.column-relguides ul{margin-left:18px}
.column-relguides a{color:var(--green-dk);font-weight:600}

/* column article */
.column-article .column-head{margin-bottom:20px}
.column-article .column-tags{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:10px}
.column-article h1{font-size:24px;line-height:1.4;margin-bottom:10px}
.column-article .lead{font-size:15px;color:var(--text);line-height:1.7;font-weight:500;background:var(--green-lt);border-left:4px solid var(--green);padding:12px 14px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin-bottom:14px}
.column-meta{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.column-meta-sep{color:var(--faint)}
.column-body{font-size:15px;line-height:1.85;color:var(--text)}
.column-body p{margin-bottom:14px}
.column-body h2{font-size:19px;font-weight:800;margin:28px 0 10px;padding-bottom:6px;border-bottom:1.5px solid var(--border)}
.column-body h3{font-size:16px;font-weight:800;color:var(--green-dk);margin:20px 0 8px}
.column-body figure{margin:18px 0;text-align:center}
.column-body figure img{max-width:100%;height:auto;border-radius:var(--r-sm);border:1px solid var(--border)}
.column-body figcaption{font-size:12px;color:var(--muted);margin-top:6px}
.column-body hr{border:none;border-top:1px dashed var(--border);margin:22px 0}
.column-body blockquote{border-left:4px solid var(--green);background:var(--green-lt);padding:10px 14px;margin:14px 0;border-radius:0 var(--r-sm) var(--r-sm) 0;font-style:italic;color:var(--text)}
.column-body strong{font-weight:800;color:var(--green-dk)}
.column-body a{color:var(--green-dk);font-weight:600;text-decoration:underline;text-decoration-color:var(--green);text-underline-offset:2px}
.column-cta{margin:28px 0 8px;padding:18px;background:#FFF8E6;border:1.5px solid #F0C674;border-radius:var(--r-md);text-align:center}
.column-cta p{margin:0;color:var(--text)}
.column-pager{display:flex;justify-content:space-between;gap:10px;margin:24px 0;font-size:13px;border-top:1px dashed var(--border);border-bottom:1px dashed var(--border);padding:14px 0}
.column-pager a{color:var(--green-dk);font-weight:700;text-decoration:none;max-width:48%}
.column-pager a:hover{color:var(--green)}
.column-related{margin-top:24px}
.column-related h2{font-size:17px;border-bottom:none;margin-top:0}
.column-related ul{margin-left:18px}
.column-source{margin-top:28px;font-size:12px;color:var(--muted);padding-top:14px;border-top:1px dashed var(--border)}
.column-source a{color:var(--green-dk)}

/* intro page – column section (added between steps and legal nav) */
.intro-columns-wrap{width:100%;background:var(--card);border:1.5px solid var(--border);border-radius:var(--r-lg);padding:18px;margin-bottom:14px;box-shadow:var(--sh-sm)}
.intro-columns-ttl{font-size:15px;font-weight:900;color:var(--text);margin-bottom:4px;display:flex;align-items:center;gap:7px}
.intro-columns-ttl::before{content:'';width:24px;height:3px;background:var(--green);border-radius:2px}
.intro-columns-sub{font-size:12px;color:var(--muted);margin-bottom:14px;line-height:1.6}
.intro-columns-list{display:flex;flex-direction:column;gap:10px}
.intro-column-item{display:flex;gap:11px;align-items:flex-start;padding:10px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--bg);text-decoration:none;color:inherit;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease}
.intro-column-item:hover{border-color:var(--green);box-shadow:0 4px 12px rgba(42,144,85,.10);transform:translateY(-1px)}
.intro-column-thumb{flex-shrink:0;width:64px;height:64px;border-radius:8px;background:var(--green-lt);overflow:hidden;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--green-dk)}
.intro-column-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.intro-column-body{flex:1;min-width:0}
.intro-column-tag{display:inline-block;font-size:10px;font-weight:700;color:var(--green-dk);background:var(--green-lt);border-radius:9999px;padding:2px 7px;margin-bottom:4px}
.intro-column-ttl{font-size:13px;font-weight:800;color:var(--text);line-height:1.45;margin:0 0 4px;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.intro-column-desc{font-size:11px;color:var(--muted);line-height:1.55;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.intro-column-date{font-size:10px;color:var(--faint);margin-top:4px}
.intro-columns-more{margin-top:12px;text-align:center}
.intro-columns-more a{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--green-dk);text-decoration:none;padding:8px 16px;border:1.5px solid var(--green);border-radius:9999px;background:#fff}
.intro-columns-more a:hover{background:var(--green);color:#fff}

/* guide-specific visual elements (used on /guide.html) */
.guide-hero{margin:6px 0 22px}
.guide-hero svg{width:100%;height:auto;display:block;border-radius:var(--r-md);border:1.5px solid var(--border);background:#FFF;box-shadow:var(--sh-sm)}
.guide-callout{display:flex;gap:14px;align-items:flex-start;background:var(--green-lt);border:1.5px solid var(--green);border-radius:var(--r-md);padding:14px 16px;margin:18px 0}
.guide-callout-icon{flex-shrink:0;width:42px;height:42px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;border:2px solid var(--green)}
.guide-callout-body{flex:1;min-width:0}
.guide-callout-body strong{display:block;font-size:14px;color:var(--green-dk);margin-bottom:4px;font-weight:900}
.guide-callout-body p{font-size:13px;color:var(--text);margin:0;line-height:1.7}
.guide-scene-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin:14px 0 20px}
.guide-scene{display:flex;gap:10px;align-items:center;padding:12px 14px;background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh-sm)}
.guide-scene-icon{flex-shrink:0;width:34px;height:34px;border-radius:50%;background:var(--green-lt);display:flex;align-items:center;justify-content:center;font-size:18px}
.guide-scene-txt{font-size:13px;font-weight:700;color:var(--text);line-height:1.45}
.guide-problem-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px;margin:14px 0 20px;padding:0;list-style:none}
.guide-problem-list li{position:relative;padding:10px 12px 10px 36px;background:#FFF8E6;border:1px solid #F0C674;border-radius:var(--r-md);font-size:13px;line-height:1.55;color:var(--text)}
.guide-problem-list li::before{content:'❓';position:absolute;left:10px;top:8px;font-size:16px}
.guide-step-grid{display:grid;grid-template-columns:1fr;gap:14px;margin:18px 0 24px}
.guide-step{display:flex;gap:14px;align-items:flex-start;padding:16px;background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh-sm);position:relative}
.guide-step-num{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:18px;letter-spacing:-.02em}
.guide-step-body{flex:1;min-width:0}
.guide-step-ttl{font-size:15px;font-weight:900;color:var(--green-dk);margin:0 0 4px}
.guide-step-desc{font-size:13px;color:var(--text);line-height:1.7;margin:0}
.guide-step-desc ul{margin:6px 0 0 18px;font-size:12px;color:var(--muted)}
.guide-pattern-card{background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);padding:14px 16px;margin:12px 0;box-shadow:var(--sh-sm)}
.guide-pattern-card h3{margin-top:0!important;color:var(--green-dk);font-size:15px}
.guide-pattern-formula{display:flex;align-items:center;gap:10px;margin:8px 0;padding:8px 12px;background:var(--green-lt);border-radius:8px;font-size:13px;font-weight:700;color:var(--green-dk);flex-wrap:wrap}
.guide-pattern-formula span.eq{color:var(--muted);font-weight:400}
.guide-rule-list{display:grid;grid-template-columns:1fr;gap:10px;margin:14px 0 20px;padding:0;list-style:none;counter-reset:rule}
.guide-rule-list li{position:relative;padding:14px 16px 14px 56px;background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh-sm);font-size:13px;line-height:1.7;color:var(--text)}
.guide-rule-list li::before{counter-increment:rule;content:'0' counter(rule);position:absolute;left:12px;top:12px;width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:13px;letter-spacing:-.02em}
.guide-rule-list li strong{display:block;color:var(--green-dk);font-weight:900;font-size:14px;margin-bottom:2px}
.guide-timeline{position:relative;margin:18px 0 24px;padding:0 0 0 28px;list-style:none}
.guide-timeline::before{content:'';position:absolute;left:11px;top:6px;bottom:6px;width:3px;background:var(--green-lt);border-radius:2px}
.guide-timeline li{position:relative;padding:0 0 18px 12px;font-size:13px;color:var(--text);line-height:1.65}
.guide-timeline li::before{content:'';position:absolute;left:-26px;top:4px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--green);box-shadow:var(--sh-sm)}
.guide-timeline li:last-child{padding-bottom:0}
.guide-timeline li strong{display:block;color:var(--green-dk);font-weight:900;font-size:13px;margin-bottom:2px}
.guide-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin:14px 0 22px}
.guide-feature{background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);padding:14px;box-shadow:var(--sh-sm)}
.guide-feature-icon{font-size:24px;display:block;margin-bottom:6px}
.guide-feature h3{margin:0 0 4px!important;font-size:14px;color:var(--green-dk);font-weight:900}
.guide-feature p{margin:0;font-size:12px;color:var(--muted);line-height:1.6}
.guide-faq-item{background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);padding:12px 16px;margin:10px 0;box-shadow:var(--sh-sm)}
.guide-faq-item h3{margin:0 0 4px!important;font-size:14px;color:var(--green-dk);padding-left:24px;position:relative}
.guide-faq-item h3::before{content:'Q';position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:900}
.guide-faq-item p{margin:0;font-size:13px;color:var(--text);line-height:1.7;padding-left:24px;position:relative}
.guide-faq-item p::before{content:'A';position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;background:var(--green-lt);color:var(--green-dk);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:900}
.guide-toc{background:var(--green-lt);border:1.5px dashed var(--green);border-radius:var(--r-md);padding:16px 20px;margin:22px 0 28px}
.guide-toc-ttl{font-size:14px;font-weight:900;color:var(--green-dk);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.guide-toc ol{margin:0 0 0 22px;padding:0;font-size:13px;line-height:1.9}
.guide-toc a{color:var(--green-dk);font-weight:600;text-decoration:none}
.guide-toc a:hover{text-decoration:underline}
.guide-detail-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin:14px 0 24px}
.guide-detail-card{background:#fff;border:1.5px solid var(--border);border-radius:var(--r-md);padding:14px;text-decoration:none;color:inherit;box-shadow:var(--sh-sm);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.guide-detail-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(14,92,50,.10);border-color:var(--green)}
.guide-detail-icon{font-size:22px;display:block;margin-bottom:6px}
.guide-detail-card h3{margin:0 0 4px!important;font-size:13px;color:var(--green-dk);font-weight:900}
.guide-detail-card p{margin:0;font-size:11px;color:var(--muted);line-height:1.55}

/* small screen tweaks */
@media (max-width:600px){
  .static-main{padding:20px 16px 48px}
  .static-main h1{font-size:22px}
  .static-main h2{font-size:17px}
  .site-header{padding:12px 12px 0}
  .site-header-inner{gap:12px}
  .site-logo{gap:11px;padding:0 2px}
  .site-logo-icon{width:46px;height:46px}
  .site-logo-name{font-size:22px;letter-spacing:.03em}
  .site-logo-tagline{font-size:12px;white-space:normal;line-height:1.5;letter-spacing:.04em}
  .site-nav{gap:6px 18px;padding:11px 14px;margin:0 -12px;border-radius:12px 12px 0 0}
  .site-nav a{font-size:13.5px;padding:5px 8px;letter-spacing:.03em}
  .column-grid{grid-template-columns:1fr;gap:14px}
  .column-article h1{font-size:20px}
  .guide-scene-grid{grid-template-columns:1fr}
  .guide-feature-grid{grid-template-columns:1fr}
  .guide-detail-grid{grid-template-columns:1fr}
}