*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:#F4F7FA;color:#16202B;line-height:1.65}
a{color:#0E5A7A}.sitehead{background:#0A1E33;color:#fff}.headrow{max-width:1160px;margin:0 auto;padding:14px 20px;display:flex;gap:16px;align-items:center;flex-wrap:wrap}.brand{color:#fff;text-decoration:none;font-weight:800;font-size:22px}.brand span{display:block;font-size:13px;color:#9FD8E8;font-weight:600}.lang-switch{margin-left:auto}.lang-switch .cur{background:#fff;color:#16202B;padding:6px 12px;border-radius:4px;font-weight:700}.cta{display:inline-block;background:#35B6D9;color:#0A1E33;text-decoration:none;font-weight:800;padding:10px 16px;border-radius:4px}.ctab{display:inline-block;border:2px solid #123F6D;color:#123F6D;text-decoration:none;font-weight:700;padding:8px 14px;border-radius:4px}
.mainnav{border-top:1px solid #24486B}.navlist{max-width:1160px;margin:0 auto;padding:0 20px;list-style:none;display:flex;flex-wrap:wrap;gap:4px}.navitem{position:relative}.navitem>a{display:block;color:#fff;text-decoration:none;padding:10px 12px;font-weight:600}.navitem .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:20}.navitem:hover>.menu,.navitem:focus-within>.menu{display:block}.menu a{display:block;color:#16202B;text-decoration:none;padding:7px 16px}.menu a:hover{background:#E6F2F8}
main{max-width:1160px;margin:0 auto;padding:0 20px}.hero{background:#123F6D;color:#fff;margin:20px 0;padding:32px;border-radius:8px}.hero h1{margin:0 0 10px;font-size:34px;line-height:1.25}.lede{font-size:18px;color:#D8ECF5}.ruler{height:14px;background:linear-gradient(90deg,#7B2FF7,#2E86FF,#2FD6A3,#F5D90A,#FF7A1A,#E5484D);border-radius:7px;position:relative;margin:18px 0 4px}.ruler i{position:absolute;top:0;width:2px;height:14px;background:rgba(255,255,255,.85)}.ruler i:nth-child(1){left:10%}.ruler i:nth-child(2){left:20%}.ruler i:nth-child(3){left:30%}.ruler i:nth-child(4){left:40%}.ruler i:nth-child(5){left:50%}.ruler i:nth-child(6){left:60%}.ruler i:nth-child(7){left:70%}.ruler i:nth-child(8){left:80%}.ruler i:nth-child(9){left:90%}
.evidence{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:0 0 20px}.evidence div{background:#fff;border:1px solid #C9D8E2;border-top:4px solid #35B6D9;padding:14px;border-radius:6px}.evidence strong{display:block;font-size:15px}.evidence span{font-size:13px;color:#52677A}
.body{background:#fff;padding:28px;border-radius:8px}.body h2{color:#123F6D;margin-top:28px}.body h3{color:#0E5A7A}table{border-collapse:collapse;width:100%;margin:14px 0}th,td{border:1px solid #C9D8E2;padding:8px 10px;text-align:left}th{background:#E6F2F8}.fig{margin:20px 0}.fig img{max-width:100%;height:auto;border:1px solid #C9D8E2;border-radius:6px}.fig figcaption{font-size:14px;color:#52677A;margin-top:6px}
.inquiry-strip{background:#E6F2F8;border:1px solid #9FD8E8;padding:24px;border-radius:8px;margin:20px 0}.sitefoot{background:#0A1E33;color:#C9D8E2;padding:24px 20px;margin-top:20px}.sitefoot a{color:#9FD8E8}.inq label{display:block;margin:10px 0;font-weight:600}.inq input,.inq textarea{width:100%;padding:9px;border:1px solid #9FB3C2;border-radius:4px;margin-top:4px}.inq button{background:#123F6D;color:#fff;border:0;padding:11px 18px;border-radius:4px;font-weight:700;cursor:pointer}.form-note{font-size:14px;color:#52677A}.bloglist{list-style:none;padding:0}.bloglist li{border-bottom:1px solid #D8E2EA;padding:14px 0}
@media(max-width:800px){.evidence{grid-template-columns:1fr 1fr}.hero h1{font-size:26px}.navlist{flex-direction:column}.navitem .menu{position:static;box-shadow:none}.headrow{flex-direction:column;align-items:flex-start}.lang-switch{margin-left:0}}

/* i18n details switcher (2026-10-27 Bodian): closed summary inherits white header text;
   dropdown is white with explicit dark links so expanded state stays readable */
.lang-switch summary{color:#fff;cursor:pointer;font-weight:700;list-style:none}
.lang-switch summary::-webkit-details-marker{display:none}
.lang-switch{position:relative}
.lang-switch ul{position:absolute;right:0;top:100%;background:#fff;list-style:none;margin:4px 0 0;padding:8px 0;min-width:170px;box-shadow:0 8px 24px rgba(0,0,0,.25);border-radius:4px;z-index:30}
.lang-switch ul li a{display:block;color:#16202B;text-decoration:none;padding:7px 16px}
.lang-switch ul li a:hover{background:#E6F2F8}
.lang-switch ul .cur{display:block;padding:7px 16px;color:#16202B;background:#fff;font-weight:700}