*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f6faff;color:#163b5a;font-family:Arial,"Segoe UI",sans-serif;line-height:1.85;font-size:18px}.nav{background:#fff;border-bottom:1px solid #e6eef5;position:sticky;top:0;z-index:10}.navin{max-width:1380px;margin:auto;height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 24px}.brand{font-size:32px;font-weight:800;color:#0964ad;letter-spacing:.2px}.tagline{font-size:13px;font-weight:500;color:#7992a6}.menu{display:flex;gap:30px;align-items:center}.menu a{color:#345d7d;text-decoration:none;font-weight:700;font-size:15px}.search{border:1px solid #d8e6f2;border-radius:22px;padding:8px 16px;color:#7891a6;background:#fbfdff;font-size:15px}.hero{max-width:1240px;margin:16px auto 22px;padding:0 20px}.heroCard{display:grid;grid-template-columns:.94fr 1.06fr;background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 10px 32px rgba(16,77,120,.07);border:1px solid #e7f0f7}.heroImg{display:block;width:100%;height:100%;min-height:340px;max-height:370px;object-fit:cover;object-position:center 20%;image-rendering:auto}.heroText{padding:26px 34px;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(135deg,#fff 0%,#eef8ff 100%)}.crumbs{font-family:Arial,"Segoe UI",sans-serif;font-size:13px;color:#1775bd;font-weight:700;letter-spacing:0;margin-bottom:10px}h1{font-size:34px;line-height:1.3;margin:0;color:#0f3d67;font-weight:700;letter-spacing:0}.lead{font-size:17px;line-height:1.72;color:#526e84;margin:14px 0;font-weight:400}.meta{display:flex;gap:14px;flex-wrap:wrap;color:#7a8fa2;font-size:13px;font-weight:500}.layout{max-width:1380px;margin:auto;padding:0 24px 70px;display:grid;grid-template-columns:250px minmax(0,760px) 250px;gap:26px;align-items:start}.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}.box{background:#fff;border:1px solid #e4edf5;border-radius:20px;padding:20px;box-shadow:0 8px 28px rgba(18,73,112,.05);font-size:15px}.box h3{margin:0 0 13px;font-size:20px;color:#123f66;font-weight:700}.toc a,.related a{display:block;text-decoration:none;color:#225d88;padding:9px 0;border-bottom:1px solid #eef3f7;font-family:Arial,"Segoe UI",sans-serif;font-size:15px;line-height:1.45;font-weight:600;letter-spacing:0}.toc a:last-child,.related a:last-child{border:0}.quick{background:linear-gradient(180deg,#eaf7ff,#f8fcff)}.quick ul{margin:0;padding-right:18px}.quick li{margin:8px 0;font-size:15px}.article{background:#fff;border:1px solid #e4edf5;border-radius:24px;padding:38px 44px;box-shadow:0 10px 32px rgba(18,73,112,.05)}.notice{background:#eaf7ff;border-right:4px solid #2f9de1;border-radius:16px;padding:18px 19px;margin-bottom:28px;font-size:16px;font-weight:500}.article h2{font-size:29px;line-height:1.4;color:#0e4776;margin:40px 0 14px;font-weight:700}.article p{font-size:18px;line-height:1.85;color:#3d5b71;margin:0 0 17px;font-weight:400}.symptoms{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.symptom{background:#f4faff;border:1px solid #deedf8;border-radius:14px;padding:14px;text-align:center;font-weight:700;color:#255f87;font-size:16px}.callout{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0}.callout>div{border-radius:18px;padding:20px}.callout b{font-size:18px}.blue{background:#eef8ff}.green{background:#effaf5}.danger{background:#fff4f2;border-right:4px solid #ef6d5b;padding:19px;border-radius:16px;margin:22px 0;font-size:17px}.steps{counter-reset:s;display:grid;gap:12px;margin:18px 0}.step{counter-increment:s;background:#f7fbff;border:1px solid #dfebf4;border-radius:15px;padding:15px 17px;font-size:17px}.step:before{content:counter(s);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#0e7cc4;color:#fff;font-weight:800;margin-left:10px}.faq{margin-top:34px;border-top:1px solid #e6edf3;padding-top:12px}.q{font-weight:700;color:#16496e;margin-top:24px;font-size:19px}.sources{font-size:14px!important;color:#7890a2!important;margin-top:30px!important}.cta{background:linear-gradient(135deg,#0c72b8,#19a6d8);color:#fff;border-radius:18px;padding:22px;margin-top:30px}.cta h3{margin:0 0 6px;font-size:23px;line-height:1.35;font-weight:700}.cta p{color:#e9f8ff;margin:0;font-size:17px}.badge{display:inline-block;background:#eaf7ff;color:#0f76bc;padding:5px 10px;border-radius:999px;font-family:Arial,"Segoe UI",sans-serif;font-size:12px;line-height:1.2;font-weight:700;letter-spacing:0;margin-bottom:10px}.miniCard{background:#f8fcff;border:1px solid #e2edf6;border-radius:16px;padding:13px;margin-top:10px;font-size:15px;line-height:1.7}.miniCard b{display:block;color:#174d75;margin-bottom:4px;font-size:16px}.footer{padding:30px 20px;text-align:center;color:#8195a5;font-size:14px}.home{color:#0c6eb2;font-family:Arial,"Segoe UI",sans-serif;font-weight:700;text-decoration:none;font-size:15px;line-height:1.4;letter-spacing:0}@media(max-width:1100px){.layout{grid-template-columns:220px minmax(0,1fr)}.leftSide{display:none}.heroCard{grid-template-columns:1fr}.heroImg{min-height:240px;max-height:280px}.heroText{padding:24px 26px}.side{top:92px}}@media(max-width:780px){body{font-size:17px}.menu,.search{display:none}.navin{height:64px}.brand{font-size:27px}.hero{padding:0 12px}.heroCard{border-radius:20px}.heroText{padding:24px}.heroImg{min-height:220px}.heroText h1{font-size:28px;line-height:1.3;font-weight:700}.lead{font-size:18px}.layout{display:block;padding:0 12px 50px}.side{display:none}.article{padding:25px 21px;border-radius:20px}.article h2{font-size:27px}.article p{font-size:17px}.symptoms{grid-template-columns:repeat(2,1fr)}.callout{grid-template-columns:1fr}}

/* SEO content expansion */
.authorBox{display:flex;gap:14px;align-items:flex-start;background:#f8fbfe;border:1px solid #e1edf5;border-radius:16px;padding:15px 17px;margin:0 0 26px}.authorIcon{width:40px;height:40px;min-width:40px;border-radius:12px;background:linear-gradient(135deg,#18c6f7,#3a5bff)}.authorBox b{display:block;color:#174d75}.authorBox span{display:block;color:#6c8497;font-size:14px;line-height:1.6}.levels{width:100%;border-collapse:separate;border-spacing:0;margin:18px 0 8px;border:1px solid #dfeaf3;border-radius:16px;overflow:hidden}.levels th,.levels td{padding:14px 15px;text-align:right;border-bottom:1px solid #e7eff5;font-size:16px}.levels th{background:#eef8ff;color:#174d75;font-weight:700}.levels tr:last-child td{border-bottom:0}.levels td:first-child{font-weight:700;color:#0e4776;white-space:nowrap}.checklist{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px;margin:16px 0}.checkitem{background:#f8fcff;border:1px solid #e0edf6;border-radius:14px;padding:12px 14px;font-size:16px}.checkitem:before{content:"✓";display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#def4e8;color:#0c8a51;font-weight:900;margin-left:8px}.sourceLinks{margin-top:30px;padding-top:22px;border-top:1px solid #e6edf3}.sourceLinks h3{font-size:21px;color:#16496e;margin:0 0 10px}.sourceLinks a{display:block;color:#0c6eb2;font-weight:700;margin:7px 0}.related .coming{display:block;color:#486a82;padding:9px 0;border-bottom:1px solid #eef3f7;font-family:Arial,"Segoe UI",sans-serif;font-size:15px;line-height:1.45;font-weight:600;letter-spacing:0}.related .coming:last-child{border:0}.related small{color:#8da1b1;font-weight:600;margin-right:6px}@media(max-width:780px){.checklist{grid-template-columns:1fr}.levels th,.levels td{font-size:14px;padding:11px 10px}.authorBox{padding:13px}}

/* SOG1-ARTICLE-PROTOTYPE-QA-V1 */
:root{--sog-font:Arial,"Segoe UI",sans-serif;--sog-text:#314f66;--sog-muted:#587287;--sog-heading:#0f3d67;--sog-link:#0b66b2}
html,body,body *,button,input,textarea,select{font-family:var(--sog-font)!important;font-synthesis:none!important}
body{font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4,h5,h6,.brand,.tagline,.menu a,.search,.crumbs,.badge,.meta,.box,.box .sideTitle,.toc a,.related .coming,.miniCard,.miniCard b,.notice,.authorBox,.authorBox b,.authorBox span,.q,.cta,.cta h3,.sourceLinks,.sourceLinks h3,.sourceLinks a,.sources,.home,.footer{font-family:var(--sog-font);font-style:normal;letter-spacing:0}
h1{font-weight:700}
.article h2{font-weight:700}
.box{font-weight:400;line-height:1.7}
.box .sideTitle{font-size:19px;line-height:1.35;font-weight:700;color:#123f66;margin:0 0 14px}
.quick li{font-size:15px;line-height:1.75;font-weight:400;color:#294b65}
.miniCard{font-size:15px;line-height:1.75;font-weight:400;color:#385b74}
.miniCard b{font-size:16px;line-height:1.4;font-weight:700;color:#174d75}
.toc a,.related .coming{font-weight:600}
.home,.menu a,.badge,.crumbs{font-weight:600}
.tagline{color:#536d82}
.search{color:#4f6c82}
.meta{color:#5f788c}
.badge{color:#075f99}
.authorBox span{color:#506b80}
.sources{color:#5b7387!important}
.related small{color:#526d82;font-weight:600}
.footer{color:#587287}
.skipLink{position:absolute;right:16px;top:-80px;background:#0b66b2;color:#fff;padding:10px 14px;border-radius:10px;z-index:1000;font-weight:700}
.skipLink:focus{top:12px}
.mobileToc{display:none;background:#f8fbfe;border:1px solid #dfeaf3;border-radius:16px;padding:14px 16px;margin:0 0 24px}
.mobileToc summary{cursor:pointer;font-weight:700;color:#174d75}
.mobileToc nav{padding-top:10px}
.mobileToc a{display:block;padding:8px 0;color:#225d88;text-decoration:none;font-weight:600;border-bottom:1px solid #e8f0f6}
.mobileToc a:last-child{border-bottom:0}
@media(max-width:780px){.mobileToc{display:block}.heroText h1{font-weight:700}.box .sideTitle{font-size:18px}}


/* SOG1-TYPOGRAPHY-GUARD-V2 */
body,body *{font-family:Arial,"Segoe UI",sans-serif!important}
h1,h2,h3,h4,h5,h6,.sideTitle,.q,.cta h3,.sourceLinks h3,.authorBox b,.miniCard b{font-weight:700!important}
p,li,td,.miniCard,.authorBox span,.related .coming,.toc a,.home,.badge,.crumbs,.meta,.notice{font-style:normal!important;letter-spacing:0!important}

/* Cluster child pages */
.childHero .heroCard{grid-template-columns:.92fr 1.08fr}
.childHero .heroImg{min-height:320px;max-height:355px}
.parentLink{display:inline-block;margin-top:14px;color:#0b66b2;font-weight:700;text-decoration:none}
.noteBox{background:#f8fbfe;border:1px solid #dfeaf3;border-radius:16px;padding:16px 18px;margin:18px 0}
.noteBox strong{display:block;color:#174d75;margin-bottom:5px}
.article ul{padding-right:22px}.article li{margin:8px 0;font-size:17px;line-height:1.8;color:#3d5b71}
@media(max-width:780px){.childHero .heroImg{min-height:220px;max-height:260px}}

/* EVYA-CTA-SYSTEM-V1 */
.evyaHeroCta{display:flex;flex-direction:column;align-items:flex-start;gap:2px;width:max-content;max-width:100%;margin-top:16px;padding:11px 16px;border-radius:13px;background:#0b66b2;color:#fff!important;text-decoration:none!important;font-family:Arial,"Segoe UI",sans-serif!important;font-weight:700!important;box-shadow:0 7px 18px rgba(11,102,178,.16)}
.evyaHeroCta small{font-size:12px;font-weight:400;color:#eaf6ff;line-height:1.45}
.evyaSideCta{background:linear-gradient(145deg,#0b66b2,#159dd1)!important;color:#fff!important;border:0!important}
.evyaSideCta .sideTitle,.evyaSideCta p{color:#fff!important}
.evyaSideCta p{font-size:14px;line-height:1.65;margin:0 0 12px}
.evyaSideCta a{display:block;text-align:center;background:#fff;color:#075f99!important;padding:10px 12px;border-radius:11px;text-decoration:none!important;font-weight:700!important}
.evyaSideCta .safe{display:block;margin-top:9px;font-size:11px;line-height:1.45;color:#dff5ff}
.evyaInlineCta{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:30px 0;padding:20px 22px;border-radius:18px;border:1px solid #cae5f6;background:linear-gradient(135deg,#eff9ff,#f9fdff)}
.evyaInlineCta b{display:block;color:#0f3d67;font-size:19px;margin-bottom:3px}
.evyaInlineCta p{margin:0!important;font-size:15px!important;line-height:1.65!important;color:#4a687f!important}
.evyaInlineCta a{flex:0 0 auto;background:#0b66b2;color:#fff!important;text-decoration:none!important;padding:11px 16px;border-radius:12px;font-weight:700!important;white-space:nowrap}
.evyaBottomCta{margin:34px 0 12px;padding:24px;border-radius:20px;background:linear-gradient(135deg,#0b66b2,#16a0d4);color:#fff;text-align:center}
.evyaBottomCta h3{margin:0 0 7px;color:#fff!important;font-size:23px!important}
.evyaBottomCta p{margin:0 auto 15px!important;max-width:600px;color:#eaf8ff!important;font-size:16px!important}
.evyaBottomCta a{display:inline-block;background:#fff;color:#075f99!important;text-decoration:none!important;padding:11px 18px;border-radius:12px;font-weight:700!important}
@media(max-width:780px){.evyaHeroCta{width:100%;align-items:center;text-align:center}.evyaInlineCta{display:block}.evyaInlineCta a{display:block;text-align:center;margin-top:14px}.evyaBottomCta{padding:20px 17px}}

/* EVYA NAV CTA V2 */
.evyaNavCta{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 16px;border-radius:12px;background:#0b66b2;color:#fff!important;text-decoration:none!important;font-family:Arial,"Segoe UI",sans-serif!important;font-size:14px;font-weight:700!important;white-space:nowrap;box-shadow:0 5px 14px rgba(11,102,178,.14)}
.evyaNavCta:hover{background:#095995}
@media(max-width:780px){.evyaNavCta{min-height:38px;padding:8px 12px;font-size:13px}.navin{gap:12px;padding:0 14px}.brand{font-size:25px}}


/* SOG1-STICKY-SIDEBAR-SCROLL-V1 */
@media(min-width:781px){
  .side{
    align-self:start;
    max-height:calc(100vh - 116px);
    max-height:calc(100dvh - 116px);
    overflow-y:auto;
    overflow-x:hidden;
    padding-bottom:6px;
    scrollbar-width:none;
    -ms-overflow-style:none;
  }
  .side::-webkit-scrollbar{width:0;height:0}
}


/* SOG1-IMAGE-CTA-V1 */
.sog1ImageBanner{display:block;margin:32px 0 18px;border-radius:22px;overflow:hidden;border:1px solid #d9e9f5;background:#fff;box-shadow:0 10px 28px rgba(15,61,103,.10);text-decoration:none!important;transition:transform .18s ease,box-shadow .18s ease}
.sog1ImageBanner:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(15,61,103,.14)}
.sog1ImageBanner img{display:block;width:100%;height:auto;aspect-ratio:600/338;object-fit:cover}
@media(max-width:780px){.sog1ImageBanner{margin:26px 0 14px;border-radius:17px}.sog1ImageBanner:hover{transform:none}}




/* 
/* HBA1C-HERO-V1 */
.hba1cVisual{min-height:330px;height:100%;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:linear-gradient(145deg,#0b65b4 0%,#148ed0 56%,#56c8ef 100%)}
.hba1cVisual:before,.hba1cVisual:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.18)}
.hba1cVisual:before{width:330px;height:330px;left:-90px;bottom:-150px}.hba1cVisual:after{width:220px;height:220px;right:-50px;top:-85px}
.hba1cCard{width:74%;max-width:390px;background:rgba(255,255,255,.96);border-radius:28px;padding:24px 26px;box-shadow:0 18px 48px rgba(2,51,94,.2);position:relative;z-index:2;text-align:center}
.hba1cLabel{font-size:15px;font-weight:700;color:#397092;letter-spacing:.4px}.hba1cValue{font-size:74px;line-height:1;color:#0a5ea8;font-weight:800;margin:8px 0 5px}.hba1cUnit{font-size:18px;color:#52738b;font-weight:600}
.hba1cMini{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.hba1cMini span{background:#eef8ff;border:1px solid #d9edf8;border-radius:13px;padding:9px 7px;color:#245a7d;font-size:13px;font-weight:700}
.hba1cSpark{height:42px;margin-top:15px;position:relative;background:linear-gradient(180deg,rgba(24,159,213,.1),transparent);border-radius:10px;overflow:hidden}
.hba1cSpark:before{content:"";position:absolute;left:0;right:0;bottom:10px;height:3px;background:linear-gradient(90deg,#6ccaf0 0 14%,#1689ca 14% 29%,#6ccaf0 29% 43%,#0b66b2 43% 61%,#6ccaf0 61% 74%,#1689ca 74% 89%,#6ccaf0 89%);transform:skewY(-5deg)}
.hba1cTable{width:100%;border-collapse:separate;border-spacing:0;margin:18px 0;border:1px solid #dfeaf3;border-radius:16px;overflow:hidden}.hba1cTable th,.hba1cTable td{padding:12px 14px;text-align:right;border-bottom:1px solid #e7eff5}.hba1cTable th{background:#eef8ff;color:#174d75}.hba1cTable tr:last-child td{border-bottom:0}
@media(max-width:1100px){.hba1cVisual{min-height:280px;height:280px}.hba1cCard{max-width:360px}.hba1cValue{font-size:64px}}
@media(max-width:780px){.hba1cVisual{min-height:240px;height:240px}.hba1cCard{width:84%;padding:18px 20px;border-radius:22px}.hba1cValue{font-size:54px}.hba1cMini{margin-top:12px}}