/* Greatwall v2 (rebuild-20261030): v2 component system + Material Laboratory
   palette from DESIGN.md (charcoal header/footer, off-white paper, amber
   accent, serif body). The specimen row below the primary nav is the site's
   declared visual signature and is kept verbatim. No other site's file is
   touched; this file is Greatwall's own stylesheet constant. */
:root{--ink:#222;--paper:#f7f4ee;--accent:#e8a020;--deep:#23262a;--charcoal:#17191c;--line:#ddd;--soft:#f0ead9;--card:#fff}
*{box-sizing:border-box}body{margin:0;font-family:Georgia,'Times New Roman',serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:#8a5a00}a:hover{color:#6d4700}
/* --- compact header: brand + solid amber CTA button (new chrome element) --- */
.site-header{background:var(--charcoal);color:#f5f1e8;padding:18px 0 0}
.header-inner{max-width:1160px;margin:0 auto;padding:16px 20px 10px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.brand{font-size:26px;font-weight:700;letter-spacing:.5px}.brand small{display:block;font-size:13px;color:var(--accent);letter-spacing:2px}
.brandbar-cta a{display:inline-block;background:var(--accent);color:#17191c !important;padding:11px 22px;text-decoration:none;font-family:Arial,Helvetica,sans-serif;font-weight:700;font-size:15px;border-radius:3px;box-shadow:0 2px 6px rgba(0,0,0,.35)}
.brandbar-cta a:hover{background:#f5b83d;color:#17191c}
/* --- tiered nav rows: primary row (main links), product row, guide row; mobile = scroll rows, never a stack --- */
.navrow{max-width:1160px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px;position:relative}
.navrow .main-nav{flex:1;min-width:0}
.main-nav{display:flex;flex-wrap:wrap;gap:14px;padding:10px 0}
.nav-link{color:#f5f1e8;text-decoration:none;font-size:16px;font-weight:700;white-space:nowrap}.nav-link:hover{text-decoration:underline;color:#fff}
.specimen-strip{height:14px;background:repeating-linear-gradient(45deg,#e8a020 0 14px,#17191c 14px 28px,#3a3f45 28px 42px,#e8a020 42px 56px);border-top:3px solid #e8a020;border-bottom:3px solid #e8a020}
.product-nav{display:flex;gap:14px;padding:10px 20px;flex-wrap:wrap;background:#e9e2d2}
.guide-nav{display:flex;gap:12px;padding:8px 20px;flex-wrap:wrap;background:#f0ead9}
.product-link{color:#333;text-decoration:none;font-size:14px;white-space:nowrap}.product-link:hover{text-decoration:underline}
.guide-link{color:#444;text-decoration:none;font-size:13px;white-space:nowrap}.guide-link:hover{text-decoration:underline}
/* --- language switcher (inserted by i18n post-render; previously unstyled) --- */
.lang-switch{margin-left:auto;flex:none;font-family:Arial,Helvetica,sans-serif;font-size:14px;position:relative}
.lang-switch summary{cursor:pointer;list-style:none;font-weight:700;white-space:nowrap;color:#f5f1e8}
.lang-switch summary::-webkit-details-marker{display:none}
.lang-switch ul{list-style:none;margin:6px 0 0;padding:8px 0;position:absolute;right:0;top:100%;background:#fff;border:1px solid var(--line);min-width:150px;z-index:50}
.lang-switch li{padding:4px 14px}
.lang-switch li a{text-decoration:none;color:var(--ink)}
.lang-switch li a:hover{text-decoration:underline}
.lang-switch .cur{color:#8a5a00;font-weight:700}
/* --- compact hero so the product figure enters the first screen --- */
.hero{background:#23262a;color:#f5f1e8;padding:28px 20px 22px;border-bottom:3px solid var(--accent)}
.hero-inner{max-width:1160px;margin:0 auto}
.hero-title{font-size:36px;margin:0 0 12px;line-height:1.15}.hero-lede{font-size:18px;line-height:1.6;max-width:820px}
.evidence-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-top:18px;list-style:none}
.evidence-item{background:#2e3237;border:1px solid var(--accent);border-top:4px solid var(--accent);padding:12px 16px;font-size:14px}
.evidence-item strong{display:block;color:var(--accent);font-family:Arial,sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:1px}
/* --- reading rhythm: narrower measure, breathing paragraphs, alternating section titles --- */
.main-content{max-width:880px;margin:0 auto;padding:28px 20px 40px}
.breadcrumb{font-family:Arial,sans-serif;font-size:13px;color:#666;margin-bottom:16px}
.section{margin-bottom:30px}
.section-title{font-size:26px;line-height:1.25;margin-top:44px}
.section:nth-of-type(odd) .section-title{border-left:6px solid var(--accent);padding-left:12px}
.section:nth-of-type(odd) .section-title::after{content:"";display:block;height:3px;width:64px;background:var(--accent);margin-top:10px}
.section:nth-of-type(even) .section-title{border-left:0;background:var(--deep);color:#fff;padding:12px 16px}
.section p{font-size:17px;line-height:1.85;margin:0 0 1.15em}
.section-title + p{font-size:18px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin:24px 0}
.product-card,.guide-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--deep);padding:18px;box-shadow:0 1px 4px rgba(18,33,43,.06)}
.product-card:nth-child(2n),.guide-card:nth-child(2n){background:var(--soft)}
.product-card h3,.guide-card h3{margin:6px 0}.product-card p,.guide-card p{font-size:15px;line-height:1.7}
.guide-index{margin:30px 0}.guide-index-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--deep);padding:18px}
.guide-index-card h3{margin:6px 0}.guide-index-card p{font-size:15px;line-height:1.7}
.cta-band{background:#17191c;color:#f5f1e8;padding:28px;margin:34px 0}
.cta-band h2{margin-top:0;font-family:Arial,sans-serif;font-size:1.5em}
.cta-button{display:inline-block;background:var(--accent);color:#17191c;padding:12px 22px;text-decoration:none;font-weight:700;margin-right:12px}
.cta-button:hover{background:#f5b83d}
.cta-button-secondary{display:inline-block;border:2px solid var(--accent);color:#f5f1e8;padding:10px 20px;text-decoration:none}
.inquiry-form{background:#fff;border:1px solid var(--line);padding:22px;max-width:640px}
.form-field{margin-bottom:16px}.form-label{display:block;font-weight:700;margin-bottom:6px;font-family:Arial,sans-serif}
.form-input,.form-textarea{width:100%;padding:10px;border:1px solid #999;font-size:16px;box-sizing:border-box}
.form-textarea{min-height:140px}.form-note{font-size:14px;color:#555;line-height:1.6}
.form-submit{background:var(--accent);color:#17191c;border:0;padding:13px 26px;font-size:16px;font-weight:700;cursor:pointer}
.callout{border:2px solid var(--deep);background:#fff;padding:18px;margin:20px 0}
.callout p{font-size:16px;line-height:1.7}
.source-note{font-size:14px;color:#555;line-height:1.6;border-top:1px solid #ccc;padding-top:14px}
.image-figure{margin:20px 0}.image-figure img{max-width:100%;height:auto;border:1px solid #ddd}
.image-caption{font-size:14px;color:#555;margin-top:6px}
.checklist{list-style:none;padding:0}.checklist-item{padding:10px 0;border-bottom:1px solid #e5e0d3;font-size:16px;line-height:1.6}
.faq-item{margin-bottom:18px}.faq-q{font-weight:700;font-size:18px}.faq-a{font-size:16px;line-height:1.7}
.site-footer{background:#17191c;color:#cfc9bb;padding:34px 20px;border-top:4px solid var(--accent);font-family:Arial,sans-serif;font-size:14px}
.footer-grid{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.footer-grid a{color:var(--accent)}
/* --- tablet: evidence row as one compact row of five --- */
@media (max-width:1100px){
.evidence-strip{grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.evidence-item{padding:10px 12px}
}
/* --- mobile: compact header, scroll-row nav + evidence row with fade scroll cues --- */
@media (max-width:640px){
.header-inner{padding:10px 4vw 6px}.brand{font-size:24px}.brand small{font-size:11px}
.brandbar-cta a{padding:8px 14px;font-size:14px}
.navrow{padding:0 4vw}
.main-nav,.product-nav,.guide-nav{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);mask-image:linear-gradient(90deg,#000 88%,transparent 100%)}
.main-nav::-webkit-scrollbar,.product-nav::-webkit-scrollbar,.guide-nav::-webkit-scrollbar{display:none}
.main-nav{gap:16px;padding-top:7px;padding-bottom:7px}
.product-nav{gap:14px;padding:10px 4vw}
.guide-nav{gap:12px;padding:8px 4vw}
details.lang-switch summary{padding:6px 0;font-family:Arial,Helvetica,sans-serif;font-size:13px}
.hero{padding:16px 4vw 12px}.hero-title{font-size:26px}.hero-lede{font-size:16px;line-height:1.55}
.main-content{padding:20px 4vw 10px}.section-title{font-size:23px}
.section p{font-size:16px}
.evidence-strip{display:flex;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:6px;-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);mask-image:linear-gradient(90deg,#000 88%,transparent 100%)}
.evidence-item{flex:0 0 230px;scroll-snap-align:start}
}