:root{--ink:#10222B;--teal:#0C6B6E;--teal-d:#084C4E;--pulse:#E4572E;--mist:#EEF4F3;--paper:#FAFAF7;--line:#D8E2DF;--mut:#4A5B60}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.65;font-size:16.5px}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}
/* header */
header.site{position:sticky;top:0;z-index:50;background:var(--ink);color:#fff}
header.site .bar{display:flex;align-items:center;gap:26px;padding:13px 0}
.logo{font-weight:800;font-size:20px;letter-spacing:-.02em;color:#fff;line-height:1.1}
.logo small{display:block;font-weight:500;font-size:11px;color:#9FC4C2;letter-spacing:.04em}
nav.main{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
nav.main>div{position:relative}
nav.main a.nl{color:#E8F1F0;padding:9px 12px;display:inline-block;font-size:15px;font-weight:600}
nav.main a.nl:hover{color:#fff;text-decoration:none}
nav.main .menu{display:none;position:absolute;top:100%;left:0;background:#fff;min-width:250px;border:1px solid var(--line);border-radius:10px;box-shadow:0 16px 40px rgba(16,34,43,.18);padding:8px;z-index:60}
nav.main .menu a{display:block;color:var(--ink);padding:8px 10px;border-radius:6px;font-size:14.5px;font-weight:500}
nav.main .menu a:hover{background:var(--mist);text-decoration:none}
nav.main>div:hover .menu,nav.main>div:focus-within .menu{display:block}
.head-cta{background:var(--pulse);color:#fff!important;padding:9px 16px!important;border-radius:8px;margin-left:10px}
.head-cta:hover{background:#C7431F;text-decoration:none}
/* hero */
.hero{background:linear-gradient(160deg,var(--ink) 0%,#14333F 70%,var(--teal-d) 100%);color:#fff;padding:56px 0 0}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.hero h1{font-size:42px;line-height:1.12;letter-spacing:-.02em;margin-bottom:16px}
.hero h1 em{font-style:normal;color:#7FD1CE}
.hero p.lead{font-size:18px;color:#CFE3E1;max-width:56ch}
.hero figure{background:#fff;border-radius:14px;padding:10px}
.hero figcaption{color:var(--mut);font-size:12.5px;padding:8px 4px 2px}
.evidence{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 6px}
.evidence span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 13px;font-size:13.5px;font-weight:600}
.ladder{display:block;width:100%;height:44px;margin-top:26px}
.btn{display:inline-block;background:var(--pulse);color:#fff;padding:12px 22px;border-radius:9px;font-weight:700;font-size:15.5px}
.btn:hover{background:#C7431F;text-decoration:none}
.btn.ghost{background:transparent;border:1.5px solid var(--teal);color:var(--teal)}
.btn.ghost:hover{background:var(--mist)}
/* sections */
section.blk{padding:52px 0}
section.blk.alt{background:var(--mist)}
h2.sec{font-size:29px;letter-spacing:-.015em;margin-bottom:10px}
p.sub{color:var(--mut);max-width:72ch;margin-bottom:26px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.card img{aspect-ratio:4/3;object-fit:cover;background:var(--mist)}
.card .pad{padding:15px 16px 17px;display:flex;flex-direction:column;gap:7px;flex:1}
.card h3{font-size:17px;line-height:1.3}
.card h3 a{color:var(--ink)}
.card p{font-size:14px;color:var(--mut);flex:1}
.chambers{display:flex;gap:3px;align-items:flex-end;height:16px}
.chambers i{display:block;width:15px;background:var(--teal);border-radius:2px 2px 0 0}
.chambers i.off{background:#CBD9D6}
.chambers small{margin-left:7px;color:var(--mut);font-size:12px;align-self:center}
.specbar{display:flex;flex-wrap:wrap;gap:7px}
.specbar span{background:var(--mist);border:1px solid var(--line);border-radius:6px;padding:3px 9px;font-size:12.5px;font-weight:600;color:var(--teal-d)}
table.spec{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:15px}
table.spec th,table.spec td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.spec th{width:32%;background:var(--mist);font-weight:700}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none}
.prose{max-width:78ch}
.prose p{margin-bottom:15px}
.prose ul{margin:0 0 15px 20px}
.prose li{margin-bottom:6px}
.crumbs{font-size:13.5px;color:var(--mut);padding:18px 0 0}
.crumbs a{color:var(--mut)}
.pagehead{padding:26px 0 8px}
.pagehead h1{font-size:34px;letter-spacing:-.015em;line-height:1.2;max-width:24ch}
.pagehead p.lead{color:var(--mut);font-size:17.5px;max-width:70ch;margin-top:10px}
.pgrid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start;padding:14px 0 8px}
.pgrid figure{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
.pgrid figcaption{font-size:12.5px;color:var(--mut);padding-top:7px}
.ladderbox{background:var(--mist);border:1px dashed var(--teal);border-radius:12px;padding:22px}
details.faq{background:#fff;border:1px solid var(--line);border-radius:10px;padding:13px 17px;margin-bottom:10px}
details.faq summary{font-weight:700;cursor:pointer}
details.faq p{margin-top:8px;color:#33474D}
.note{background:#FFF6EF;border:1px solid #F2C9A8;border-radius:10px;padding:14px 17px;font-size:14.5px;margin:18px 0}
.cta-band{background:var(--ink);color:#fff;border-radius:14px;padding:30px;margin:14px 0 6px}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{color:#CFE3E1;max-width:65ch;margin-bottom:16px}
form.inq{display:grid;gap:12px;max-width:640px}
form.inq label{font-weight:600;font-size:14.5px;display:grid;gap:5px}
form.inq input,form.inq select,form.inq textarea{padding:11px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;width:100%}
form.inq button{background:var(--pulse);color:#fff;border:none;padding:13px 20px;border-radius:9px;font-weight:700;font-size:15.5px;cursor:pointer}
form.inq button:hover{background:#C7431F}
footer.site{background:var(--ink);color:#B9CFCB;margin-top:56px;padding:38px 0 30px;font-size:14.5px}
footer.site .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:26px}
footer.site h4{color:#fff;font-size:15px;margin-bottom:10px}
footer.site a{color:#B9CFCB;display:block;padding:2.5px 0}
footer.site .fine{border-top:1px solid rgba(255,255,255,.14);margin-top:24px;padding-top:16px;font-size:13px;color:#8FA8A5}
.postlist{display:grid;gap:16px}
.postitem{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.postitem h3{font-size:20px;margin-bottom:6px}
.postitem h3 a{color:var(--ink)}
.postitem p{color:var(--mut);font-size:15px}
article.post .prose{font-size:17px}
.modelrow{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.modelrow b{white-space:nowrap}
.modelrow span{color:var(--mut);font-size:14.5px}
@media(max-width:860px){header.site .bar{flex-direction:column;align-items:flex-start;gap:8px}nav.main{margin-left:0}.hero .grid,.pgrid,footer.site .cols{grid-template-columns:1fr}.hero h1{font-size:31px}.pagehead h1{font-size:27px}nav.main a.nl{padding:8px 8px;font-size:14px}}