:root{--navy:#0a1e3c;--navy2:#10294f;--cyan:#17a8c9;--amber:#f2a900;--paper:#f4f7fb;--ink:#16233a;--mut:#4a5a73;--line:#c9d6e6}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);line-height:1.65}
a{color:#0b6d8c}header{background:var(--navy);color:#fff}
.topbar{max-width:1160px;margin:0 auto;padding:10px 20px;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brand{font-size:22px;font-weight:700;letter-spacing:.5px}.brand small{display:block;font-size:12px;font-weight:400;color:#bcd6ea}
nav.main{max-width:1160px;margin:0 auto;padding:0 20px 12px;display:flex;gap:4px;flex-wrap:wrap}
nav.main a,nav.main .dropbtn{color:#fff;text-decoration:none;padding:8px 12px;border-radius:6px;display:inline-block}
nav.main a:hover,nav.main .dropbtn:hover{background:var(--navy2)}
.drop{position:relative}.drop .menu{display:none;position:absolute;left:0;top:100%;background:#fff;min-width:260px;border:1px solid var(--line);border-radius:8px;padding:8px;z-index:50;box-shadow:0 8px 24px rgba(10,30,60,.18)}
.drop:hover .menu,.drop:focus-within .menu{display:block}
.drop .menu a{color:var(--ink);display:block;padding:7px 10px}.drop .menu a:hover{background:#eaf3f8}
.lang{position:relative}.lang button{background:transparent;border:1px solid #7fa6c4;color:#fff;border-radius:20px;padding:6px 12px;cursor:pointer}
.lang .menu{display:none;position:absolute;right:0;top:110%;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:10px;min-width:190px;z-index:60}
.lang:hover .menu,.lang:focus-within .menu{display:block}
.lang .menu span{display:block;padding:5px 8px}.lang .menu .soon{color:var(--mut)}
.nav-toggle,.sub-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-btn{display:none}
@media(max-width:720px){header{position:relative}.nav-btn{display:block;cursor:pointer;font-size:26px;line-height:1;color:#fff;padding:4px 2px}nav.main{display:none}#nav-toggle:checked~nav.main{display:block;position:absolute;left:0;right:0;top:100%;background:var(--navy);z-index:70;max-height:65vh;overflow-y:auto;padding:10px 20px 18px;box-shadow:0 12px 24px rgba(10,30,60,.35)}#nav-toggle:checked~nav.main a,#nav-toggle:checked~nav.main .dropbtn{display:block}.drop{display:block}.drop:hover .menu,.drop:focus-within .menu{display:none}.drop .menu{display:none;position:static;min-width:0;box-shadow:none}.sub-toggle:checked~.menu{display:block}}
.hero{background:linear-gradient(135deg,#0a1e3c,#0e3a5c);color:#fff;padding:38px 20px 30px}
.hero-inner{max-width:1160px;margin:0 auto}.hero h1{font-size:34px;line-height:1.25;margin:0 0 10px}
.hero p.lede{font-size:18px;color:#d7e6f2;max-width:860px}
.rail{margin:18px 0 6px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);border-radius:10px;padding:14px 16px}
.rail .ticks{display:flex;justify-content:space-between;font-family:monospace;font-size:13px;color:#9fd8e8}
.rail .bar{height:8px;background:linear-gradient(90deg,#17a8c9,#f2a900);border-radius:4px;margin:8px 0}
.rail small{color:#bcd6ea}
.evidence{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.evidence span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);border-radius:20px;padding:6px 12px;font-size:13px}
.cta{display:inline-block;background:var(--amber);color:#1a1200;font-weight:700;text-decoration:none;padding:12px 20px;border-radius:8px;margin:6px 8px 6px 0}
.cta.secondary{background:transparent;color:#fff;border:2px solid #fff}
main{max-width:1160px;margin:0 auto;padding:24px 20px 40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin:20px 0}
.card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--cyan);border-radius:10px;padding:18px}
.card h3{margin-top:0}.card .num{font-size:26px;font-weight:700;color:var(--navy)}
.strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0;background:var(--navy);color:#fff;border-radius:12px;overflow:hidden;margin:24px 0}
.strip div{padding:20px;border-right:1px solid rgba(255,255,255,.2)}.strip div:last-child{border-right:0}
.strip b{font-size:30px;display:block}.strip span{color:#bcd6ea;font-size:14px}
table{width:100%;border-collapse:collapse;margin:16px 0;background:#fff}th,td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}th{background:var(--navy);color:#fff}
section{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;margin:18px 0}
h2{font-size:24px;color:var(--navy)}h3{color:var(--navy)}
.note{background:#fff8e1;border:1px solid #f2d38a;border-radius:8px;padding:14px 18px;margin:16px 0}
.diagram{background:#eef4fa;border:1px dashed #7fa6c4;border-radius:10px;padding:18px;margin:16px 0;text-align:center}
.diagram .cell{display:inline-block;background:#fff;border:2px solid var(--cyan);border-radius:8px;padding:10px 16px;margin:6px;font-weight:700}
footer{background:var(--navy);color:#bcd6ea;padding:28px 20px}footer .inner{max-width:1160px;margin:0 auto}footer a{color:#fff}
.bread{font-size:13px;color:var(--mut)}ul.tight li{margin-bottom:6px}
@media(max-width:900px){.hero h1{font-size:26px}.strip div{border-right:0;border-bottom:1px solid rgba(255,255,255,.2)}}