.opk-home{padding:74px 0;background:#f5f8fc;border-top:1px solid #e5edf6;border-bottom:1px solid #e5edf6}
.opk-home-inner,.opk-page{width:min(1240px,calc(100% - 48px));margin:auto}
.opk-home-heading{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:28px}
.opk-eyebrow{margin:0 0 8px;color:#c88721;font-size:11px;font-weight:800;letter-spacing:.18em}
.opk-home-heading h2{margin:0;color:#0b3974;font:700 32px/1.12 Georgia,"Times New Roman",serif}
.opk-home-heading>a{font-size:13px;font-weight:750;color:#0b3974;text-decoration:none}
.opk-home-grid{display:grid;grid-template-columns:1.15fr .92fr .93fr;gap:20px}
.opk-home-card{background:#fff;border:1px solid #dfe8f2;border-radius:18px;padding:25px;box-shadow:0 10px 30px rgba(24,54,91,.055);min-height:310px;display:flex;flex-direction:column}
.opk-card-head{display:flex;align-items:center;gap:12px;margin-bottom:21px}
.opk-card-head>span{width:32px;height:32px;display:grid;place-items:center;border-radius:9px;background:#0b3974;color:#fff;font-size:10px;font-weight:800}
.opk-card-head h3{margin:0;color:#0d2547;font-size:17px}
.opk-home-card ul{list-style:none;padding:0;margin:0}
.opk-home-card li{display:flex;justify-content:space-between;gap:15px;padding:9px 0;border-bottom:1px solid #edf1f5;font-size:12.5px}
.opk-home-card li span{color:#52647a}.opk-home-card li b{color:#0b3974;white-space:nowrap}
.opk-card-link{margin-top:auto;padding-top:19px;color:#0b3974!important;text-decoration:none!important;font-size:12.5px;font-weight:800}
.opk-mini-links{display:grid;gap:8px}
.opk-mini-links a{display:flex;justify-content:space-between;padding:10px 12px;border-radius:9px;background:#f6f8fb;color:#203b5f!important;text-decoration:none!important;font-size:12.5px;font-weight:700}
.opk-mini-links a:hover{background:#edf3fa}
.opk-home-card.standards{background:#0a315f;color:#fff;border-color:#0a315f}
.opk-home-card.standards .opk-card-head h3{color:#fff}
.opk-home-card.standards .opk-card-head>span{background:#fff;color:#0b3974}
.opk-home-card.standards p{color:#c8d8ea;font-size:13px;line-height:1.65}
.opk-home-card.standards .opk-card-link{color:#fff!important}
.opk-standard-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.opk-standard-tags span{padding:7px 9px;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:10px;color:#e6eff9}

/* Detail page */
.opk-page{padding:56px 0 80px}
.opk-page-intro{max-width:870px;margin-bottom:48px}
.opk-page-intro h1{font:700 42px/1.1 Georgia,"Times New Roman",serif;color:#0b3974;margin:0 0 16px}
.opk-page-intro>p:not(.opk-eyebrow){font-size:15px;line-height:1.75;color:#4e6178}
.opk-disclaimer{padding:13px 15px;background:#f7f9fc;border-left:3px solid #c88721;border-radius:4px}
.opk-detail-section{margin:0 0 65px}
.opk-section-head{display:flex;gap:15px;align-items:center;margin-bottom:25px}
.opk-section-head>span{font:700 31px Georgia,serif;color:#d9e3ee}
.opk-section-head p{margin:0;color:#c88721;font-size:10px;font-weight:800;letter-spacing:.15em}
.opk-section-head h2{margin:2px 0 0;color:#0b3974;font:700 29px Georgia,serif}
.opk-fact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.opk-fact-grid article{border:1px solid #dfe8f1;border-radius:14px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:235px}
.opk-fact-grid small{font-size:10px;color:#8090a3;font-weight:700}
.opk-fact-grid h3{font-size:14px;line-height:1.35;color:#172c49;margin:9px 0 8px}
.opk-fact-grid strong{font:700 23px Georgia,serif;color:#0b3974}
.opk-fact-grid p{font-size:11.5px;line-height:1.55;color:#66768a}
.opk-fact-grid a{margin-top:auto;color:#0b3974;text-decoration:none;font-size:11px;font-weight:800}
.opk-wide-link{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:18px;padding:18px 21px;background:#f4f7fb;border-radius:12px}
.opk-wide-link div{display:grid;gap:3px}.opk-wide-link span{font-size:11.5px;color:#65778b}
.opk-wide-link a{color:#0b3974;text-decoration:none;font-size:12px;font-weight:800}
.opk-dark-section{background:#082c58;border-radius:20px;padding:30px}
.opk-section-head.light h2{color:#fff}.opk-section-head.light>span{color:#315c8e}
.opk-link-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.opk-link-groups details{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);border-radius:12px;overflow:hidden}
.opk-link-groups summary{cursor:pointer;padding:14px 16px;color:#fff;font-size:12.5px;font-weight:800}
.opk-link-groups details>div{padding:0 16px 14px;display:grid;gap:5px}
.opk-link-groups a{color:#c9d8e9!important;text-decoration:none!important;font-size:11.5px;padding:5px 0}
.opk-standards-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}
.opk-standard-card{display:block;padding:24px;border:1px solid #dfe7f0;border-radius:15px;text-decoration:none!important;color:#1e3451!important;background:#fff;min-height:225px}
.opk-standard-card.featured{background:#eef4fb;border-color:#cbdced}
.opk-standard-card>span{font-size:10px;font-weight:900;letter-spacing:.15em;color:#b47416}
.opk-standard-card h3{color:#0b3974;margin:9px 0;font:700 20px Georgia,serif}
.opk-standard-card p{font-size:12px;line-height:1.6;color:#607087}
.opk-standard-card b{display:block;margin-top:22px;font-size:11.5px;color:#0b3974}
@media(max-width:980px){
 .opk-home-grid{grid-template-columns:1fr 1fr}.opk-home-card.standards{grid-column:1/-1;min-height:230px}
 .opk-fact-grid{grid-template-columns:repeat(2,1fr)}.opk-standards-grid{grid-template-columns:1fr}
}
@media(max-width:650px){
 .opk-home{padding:48px 0}.opk-home-inner,.opk-page{width:min(100% - 30px,1240px)}
 .opk-home-heading{align-items:start;flex-direction:column}.opk-home-heading h2{font-size:27px}
 .opk-home-grid{grid-template-columns:1fr}.opk-home-card.standards{grid-column:auto}
 .opk-fact-grid,.opk-link-groups{grid-template-columns:1fr}
 .opk-page-intro h1{font-size:34px}.opk-wide-link{align-items:flex-start;flex-direction:column}
 .opk-dark-section{padding:22px 16px}
}