:root{--ink:#0f2a2e;--teal:#0e6b6e;--teal2:#0a4f52;--amber:#e8a33d;--paper:#f7f4ec;--line:#dfe8e6;--card:#ffffff}
*{box-sizing:border-box}body{margin:0;font-family:Georgia,serif;color:var(--ink);background:var(--paper);line-height:1.65}
a{color:var(--teal)}a:hover{color:var(--teal2)}
.site-head{background:var(--ink);color:#fff}.head-row{max-width:1160px;margin:0 auto;padding:18px 20px;display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.brand{font-size:30px;font-weight:700;color:#fff;text-decoration:none;letter-spacing:.5px}.brand span{color:var(--amber)}
.brand-sub{margin:0;color:#cfe3e0}.head-cta{margin-left:auto;background:var(--amber);color:#1c1c1c;padding:10px 16px;border-radius:6px;text-decoration:none;font-weight:700}
.main-nav{background:var(--teal2)}.nav-list{max-width:1160px;margin:0 auto;padding:0 20px;list-style:none;display:flex;gap:4px;flex-wrap:wrap}
.nav-list>li{position:relative}.nav-list>li>a{display:block;color:#fff;text-decoration:none;padding:12px 12px}
.nav-list .menu{display:none;position:absolute;left:0;top:100%;background:#fff;list-style:none;margin:0;padding:8px 0;min-width:230px;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:50}
.nav-list .has-menu:hover .menu,.nav-list .has-menu:focus-within .menu{display:block}
.menu a{display:block;color:var(--ink);text-decoration:none;padding:8px 16px}.menu a:hover{background:var(--paper)}
.wrap{max-width:1160px;margin:0 auto;padding:24px 20px 48px}
.hero{background:var(--teal);color:#fff;border-radius:14px;padding:32px;display:grid;grid-template-columns:1.4fr .8fr;gap:24px}
.hero h1{margin:0 0 10px;font-size:38px;line-height:1.2}.hero p{margin:0}.hero-lead{font-size:19px}
.evidence-bar{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.evidence-bar span{background:#fff;border:1px solid var(--line);border-left:5px solid var(--amber);padding:8px 12px;border-radius:6px;font-size:14px}
.pulley-motif{width:100%;height:auto;background:#fff;border-radius:10px}.motif-note{font-size:13px;color:#cfe3e0;margin:6px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}.card h2,.card h3{margin-top:0;color:var(--teal)}
.card-cta{display:inline-block;margin-top:8px;font-weight:700}
.spec{width:100%;border-collapse:collapse;background:#fff}.spec th,.spec td{border:1px solid var(--line);padding:10px;text-align:left}
.spec th{background:var(--ink);color:#fff}.callout{background:#fff7e0;border-left:6px solid var(--amber);padding:16px;border-radius:6px;margin:20px 0}
.buyer-ask{background:#eef6f5;border-left:6px solid var(--teal);padding:14px;border-radius:6px}
.inquiry-form{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;display:grid;gap:12px;max-width:640px}
.inquiry-form label{display:grid;gap:6px;font-weight:700}.inquiry-form input,.inquiry-form textarea{padding:10px;border:1px solid #bbb;border-radius:6px;font:inherit}
.inquiry-form button{background:var(--amber);border:0;padding:12px 18px;border-radius:6px;font-weight:700;cursor:pointer}
.form-note{color:#666}.blog-list{list-style:none;padding:0}.blog-list li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px;margin:10px 0}
.site-foot{background:var(--ink);color:#d9e8e6}.foot-grid{max-width:1160px;margin:0 auto;padding:28px 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.foot-brand{font-weight:700;color:#fff}.foot-h{font-weight:700;color:var(--amber)}.foot-note{max-width:1160px;margin:0 auto;padding:0 20px 24px}
.breadcrumb{font-size:14px;color:#666}.toc{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px}
@media(max-width:800px){.hero{grid-template-columns:1fr}.card-grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}.nav-list{flex-direction:column}}

/* Language switcher (i18n 2026-10-27, site3 CVT): details/summary dropdown
   placed by core.insert_switcher in .navrow right after the main nav.
   .navrow stays block so .main-nav keeps its full-width teal bar; the
   switcher forms a right-aligned pill row on the same teal bar. */
.navrow{background:var(--teal2)}
details.lang-switch{position:relative;text-align:right;padding:0 20px 10px;font-size:13px}
details.lang-switch summary{cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid rgba(255,255,255,.5);border-radius:999px;background:#fff;color:var(--ink);white-space:nowrap}
details.lang-switch summary::-webkit-details-marker{display:none}
details.lang-switch summary::marker{content:""}
details.lang-switch .chev{font-size:10px}
details.lang-switch ul{position:absolute;right:20px;top:calc(100% - 4px);list-style:none;margin:0;padding:6px 0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 28px rgba(15,42,46,.25);min-width:150px;z-index:80;text-align:left}
details.lang-switch li{margin:0}
details.lang-switch li a,details.lang-switch li span.cur{display:block;padding:8px 16px;text-decoration:none;color:var(--ink);white-space:nowrap;font-size:14px}
details.lang-switch li span.cur{font-weight:700}
details.lang-switch li a:hover{background:var(--paper)}