#st334Content:has(#stDoppler637){max-width:1088px!important;width:calc(100% - 32px)!important;margin:24px auto 40px!important;padding:0!important}
#stDoppler637{--ink:#052568;--body:#334155;--muted:#64748b;--line:#cbdcf0;--card:#fff;--soft:#f1f7ff;--blue:#0065ff;font:14px/1.42 Arial,Helvetica,sans-serif;color:var(--body)}
#stDoppler637 *{box-sizing:border-box}#stDoppler637 [hidden]{display:none!important}#stDoppler637 :is(h1,h2,h3,p){margin:0}#stDoppler637 h1{font:700 34px/1.2 Arial,Helvetica,sans-serif;color:var(--ink);letter-spacing:-.4px;margin:8px 0 3px}#stDoppler637 h2{font:700 20px/1.2 Arial,Helvetica,sans-serif;color:var(--ink);letter-spacing:-.3px;margin-bottom:8px}#stDoppler637 h3{font:600 14px/1.3 Arial,Helvetica,sans-serif;color:var(--ink)}#stDoppler637 a{color:var(--blue);text-decoration:none}#stDoppler637 a:hover{text-decoration:underline}#stDoppler637 .m-crumb{font-size:13px;color:var(--muted)}#stDoppler637 .m-intro{font-size:17px;line-height:1.4;margin-bottom:12px}#stDoppler637 .p-reference{padding:7px 10px;background:var(--soft);border-radius:4px;font-size:12px;margin-bottom:12px}
#stDoppler637 .m-columns{display:grid;grid-template-columns:minmax(0,.49fr) minmax(0,.51fr);gap:10px;align-items:start}#stDoppler637 .m-main{align-items:stretch}#stDoppler637 .m-stack{display:grid;gap:8px;min-width:0}#stDoppler637 .m-left{grid-template-rows:auto auto 1fr}#stDoppler637 .m-right{grid-template-rows:auto auto 1fr auto}#stDoppler637 .m-panel{border:1px solid var(--line);border-radius:4px;background:var(--card);padding:10px 12px;min-width:0}#stDoppler637 .c-input-panel>[data-st515-tools]{margin:0 0 10px;--a479-text:var(--ink);--a479-muted:var(--muted);--st519-link:var(--blue);font:14px Arial}
#stDoppler637 .m-field{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(70px,1fr) 66px;align-items:center;margin:7px 0}#stDoppler637 .m-field label{padding-right:8px;color:var(--ink)}#stDoppler637 .m-field input{width:100%;min-width:0;height:33px;padding:5px 8px;border:1px solid var(--line);border-radius:4px 0 0 4px;background:var(--card);color:var(--ink);font:14px Arial,Helvetica,sans-serif}#stDoppler637 .m-field>span{height:33px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-left:0;border-radius:0 4px 4px 0;font-size:14px}#stDoppler637 input::-webkit-inner-spin-button,#stDoppler637 input::-webkit-outer-spin-button{opacity:1}#stDoppler637 input[aria-invalid=true]{border-color:#be2342}#stDoppler637 :focus-visible{outline:3px solid #73b3ff;outline-offset:2px}#stDoppler637 .m-error{margin-top:10px;padding:10px;border:1px solid #d98698;border-radius:3px;background:#fff0f3;color:#921a39}
#stDoppler637 .m-help{font-size:11px;line-height:1.3;color:var(--muted);margin-top:6px}#stDoppler637 .m-device img{display:block;width:100%;height:290px;object-fit:contain;background:transparent;margin-top:8px}#stDoppler637 .m-device .m-help{text-align:center}#stDoppler637 .p-input-foot{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:12px}#stDoppler637 .p-input-foot button{border:1px solid var(--blue);border-radius:4px;background:var(--card);color:var(--blue);font:inherit;cursor:pointer;padding:5px 10px}
#stDoppler637 .p-meanings{position:relative}#stDoppler637 .p-meaning{border:1px solid var(--line);border-radius:4px;padding:10px 112px 10px 10px;margin-top:6px;min-height:64px}#stDoppler637 .p-meaning p{font-size:12px;margin-top:4px}#stDoppler637 .p-meanings>img{position:absolute;right:10px;bottom:14px;width:120px;height:120px;object-fit:contain;pointer-events:none}#stDoppler637 .m-before ul{list-style:none;padding:0;margin:0}#stDoppler637 .m-before li{font-size:13px;padding:5px 0}
#stDoppler637 .m-hero{text-align:center;background:linear-gradient(110deg,#ebfff2,#dcffeb)!important;border:1px solid #a6e6bd;border-radius:4px;padding:12px 5px;color:#071c13!important}#stDoppler637 .m-hero>span{display:block;font-size:12px;font-weight:700;color:#071c13!important}#stDoppler637 .m-hero>strong{display:block;font:700 60px/1.08 Arial,Helvetica,sans-serif;color:#030a05!important;letter-spacing:-1px;overflow-wrap:anywhere;margin:4px 0 0}#stDoppler637 .m-hero .i-unit{display:block;font:700 28px/1.1 Arial;color:#030a05!important;margin:2px 0 8px}#stDoppler637 .m-hero p{font-size:12px;color:#052568!important}#stDoppler637 .m-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-top:8px}#stDoppler637 .m-metrics>div{padding:7px 3px;text-align:center;border:1px solid var(--line);border-radius:4px;min-width:0;background:var(--soft)}#stDoppler637 .m-metrics strong{font-size:20px;line-height:1.2;color:var(--ink);display:block;overflow-wrap:anywhere}#stDoppler637 .m-metrics small{font-size:11px;display:block;margin-top:3px;color:var(--muted)}
#stDoppler637 .m-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}#stDoppler637 .m-two>div{text-align:center;border:1px solid var(--line);border-radius:4px;min-width:0;padding:5px;background:var(--card)}#stDoppler637 .m-built img{display:block;width:100%;height:165px;object-fit:cover;border-radius:3px;margin-bottom:5px}#stDoppler637 .m-built strong{display:block;font-size:22px;line-height:1.2;color:var(--ink);overflow-wrap:anywhere}#stDoppler637 .m-equations{font:600 16px/1.5 Arial,Helvetica,sans-serif;color:var(--ink);background:var(--soft);padding:9px;border-radius:4px;overflow-wrap:anywhere}#stDoppler637 .r-scaled{border:1px solid var(--line);border-radius:4px;padding:9px;margin-top:8px;color:var(--ink)}#stDoppler637 .r-scaled>strong{display:block;font-size:16px;margin:5px 0;overflow-wrap:anywhere}#stDoppler637 .r-scaled>p{font-size:15px;font-weight:600;overflow-wrap:anywhere}#stDoppler637 .r-scaled>small{font-size:11px;color:var(--muted);display:block;margin-top:4px;overflow-wrap:anywhere}#stDoppler637 .m-context{background:#fff3e4;border:1px solid #ffad64;border-radius:4px;padding:8px 12px;margin-top:8px}#stDoppler637 .m-context>b{font-size:15px;color:#ef5e00}#stDoppler637 .m-context p{font-size:12px;margin-top:3px}
#stDoppler637 .p-guide{margin-top:12px}#stDoppler637 .p-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}#stDoppler637 .p-guide-photo{height:165px;overflow:hidden;border-radius:3px;background:var(--soft);margin-bottom:6px}#stDoppler637 .p-guide img{width:100%;height:100%;object-fit:cover}#stDoppler637 .p-guide p{font-size:12px;margin-top:3px}#stDoppler637 .m-exports{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0 2px;margin-top:12px}#stDoppler637 .m-exports button{min-height:34px;padding:6px 10px;border:1px solid #7ca5fa!important;border-radius:4px!important;background:var(--card)!important;color:var(--blue)!important;font:600 14px/1.25 Arial,Helvetica,sans-serif!important;cursor:pointer}#stDoppler637 button:disabled{opacity:.5;cursor:not-allowed}#stDoppler637 #d637Status:empty{display:none}#stDoppler637 textarea{width:100%;min-height:160px;background:var(--card);color:var(--body);border:1px solid var(--line);border-radius:4px;font:13px Arial}#stDoppler637 .m-lower{margin-top:10px;grid-template-columns:1fr 1fr;align-items:stretch}#stDoppler637 .m-lower>.m-panel>p{font-size:12px;margin:5px 0}#stDoppler637 .m-example{background:var(--soft);border-radius:3px;padding:9px 10px;margin-top:8px;font-size:14px;color:var(--ink);overflow-wrap:anywhere}#stDoppler637 .m-example p{margin-top:5px}
#stDoppler637 .m-quality{padding:8px 10px;margin-top:8px;background:var(--soft);border:1px solid var(--line);border-radius:4px}#stDoppler637 .m-quality summary{list-style:none;cursor:pointer;font-weight:700;color:var(--ink);position:relative;padding-right:18px}#stDoppler637 .m-quality summary:after{content:'⌄';position:absolute;right:0;color:var(--blue)}#stDoppler637 .m-quality p{font-size:12px;color:var(--muted);margin-top:5px}#stDoppler637 summary::-webkit-details-marker{display:none}
#stDoppler637 .m-faq.ui537-faq{padding:10px 12px!important;background:var(--card)!important;border:1px solid var(--line)!important;border-radius:4px!important}#stDoppler637 .m-faq .ui537-heading{font:700 20px/1.2 Arial,Helvetica,sans-serif!important;color:var(--ink)!important;margin:0 0 8px!important}#stDoppler637 .m-faq .w-faq-item,#stDoppler637 .m-faq .ui537-question{border:1px solid var(--line)!important;background:var(--card)!important;border-radius:3px!important;margin:5px 0!important}#stDoppler637 .m-faq summary,#stDoppler637 .m-faq .ui537-summary{font:400 14px/1.35 Arial,Helvetica,sans-serif!important;padding:5px 28px 5px 8px!important;color:var(--ink)!important;min-height:0!important;cursor:pointer;list-style:none;position:relative}#stDoppler637 .m-faq .ui537-summary:after{right:8px!important;left:auto!important;color:var(--blue)!important}#stDoppler637 .m-faq .w-faq-item>summary:after{content:'+';position:absolute;right:8px;top:3px;font-size:21px;color:var(--blue)}#stDoppler637 .m-faq .w-faq-item[open]>summary:after{content:'−'}#stDoppler637 .m-faq .w-faq-item p{font-size:13px;padding:8px;line-height:1.4}#stDoppler637 .w-more>summary{padding:6px 0!important;color:var(--blue)!important}#stDoppler637 .w-more>summary:after{content:'…';margin-left:3px}
#stDoppler637 .m-sources{margin-top:10px;scroll-margin-top:130px}#stDoppler637 .m-sources>h2{font-size:20px;margin-bottom:6px}#stDoppler637 .m-source-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}#stDoppler637 .m-source-grid>a{display:flex;align-items:center;gap:12px;padding:8px 10px;border:1px solid var(--line);border-radius:4px;color:var(--ink);min-width:0;background:var(--card)}#stDoppler637 .m-source-grid a>span:last-child{min-width:0}#stDoppler637 .m-logo{width:135px;min-width:135px;border-right:1px solid var(--line);padding-right:10px;background:#fff;color:#052568!important;align-self:stretch;display:flex;align-items:center;justify-content:center;border-radius:3px;font:700 18px/1.3 Arial;text-align:center}#stDoppler637 .m-source-grid b{font-size:12px;display:block}#stDoppler637 .m-source-grid small{font-size:11px;display:block;color:var(--muted);line-height:1.3;margin-top:2px}#stDoppler637 .m-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
html:is(.st-master-dark,.st-home-dark,.dark,[data-theme=dark],[data-st-theme=dark]) #stDoppler637{--ink:#e2ecff;--body:#c6d7ed;--muted:#acc0db;--line:#35506c;--card:#102236;--soft:#18314c;--blue:#78b4ff}html:is(.st-master-dark,.st-home-dark,.dark,[data-theme=dark],[data-st-theme=dark]) #stDoppler637 .m-context{background:#382c1e;border-color:#846a3f}html:is(.st-master-dark,.st-home-dark,.dark,[data-theme=dark],[data-st-theme=dark]) #stDoppler637 .m-context>b{color:#ffd092}html:is(.st-master-dark,.st-home-dark,.dark,[data-theme=dark],[data-st-theme=dark]) #stDoppler637 .m-error{background:#401d2b;color:#ffd4dc}
@media(max-width:1000px){#stDoppler637 .m-field{grid-template-columns:minmax(0,1fr) 90px 50px}#stDoppler637 .m-field label{font-size:12px}#stDoppler637 .m-metrics strong{font-size:17px}#stDoppler637 .m-device img{height:260px}#stDoppler637 .m-logo{width:115px;min-width:115px}}
@media(max-width:760px){#stDoppler637 .m-columns{grid-template-columns:1fr}#stDoppler637 .m-stack{grid-template-rows:none}#stDoppler637 .p-guide-grid{grid-template-columns:1fr}#stDoppler637 .p-guide-photo{height:210px}#stDoppler637 .m-source-grid{grid-template-columns:1fr}#stDoppler637 .m-device img{height:260px}}
@media(max-width:600px){#st334Content:has(#stDoppler637){width:calc(100% - 28px)!important;margin-top:18px!important}#stDoppler637 h1{font-size:27px}#stDoppler637 h2{font-size:19px}#stDoppler637 .m-intro{font-size:14px}#stDoppler637 .m-hero>strong{font-size:48px}#stDoppler637 .m-hero .i-unit{font-size:25px}#stDoppler637 .m-metrics strong{font-size:15px}#stDoppler637 .m-metrics small{font-size:10px}#stDoppler637 .m-built img{height:145px}#stDoppler637 .m-built strong{font-size:19px}#stDoppler637 .m-built h3{font-size:12px}#stDoppler637 .m-exports button{font-size:12px!important}#stDoppler637 .r-scaled>strong{font-size:15px}#stDoppler637 .m-field{grid-template-columns:minmax(0,1fr) 85px 46px}}
@media(max-width:400px){#stDoppler637 .m-panel{padding:9px}#stDoppler637 .p-meaning{padding-right:80px}#stDoppler637 .p-meanings>img{width:90px}#stDoppler637 .m-logo{width:100px;min-width:100px}#stDoppler637 .m-hero>strong{font-size:42px}#stDoppler637 .m-metrics strong{font-size:14px}}

/* W637: live, semantic calculation flow. */
#stDoppler637 .m-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}
#stDoppler637 .m-right{grid-template-rows:auto auto 1fr auto}
#stDoppler637 .d-steps{list-style:none;padding:0;margin:0;display:grid;gap:22px}
#stDoppler637 .d-steps>li{position:relative;display:flex;gap:12px;padding:10px;border:1px solid var(--line);border-radius:4px;color:var(--ink);min-width:0}
#stDoppler637 .d-steps>li+li:before{content:'⌄';position:absolute;top:-28px;left:calc(50% - 9px);font:bold 27px Arial;color:var(--blue)}
#stDoppler637 .d-number{display:flex;align-items:center;justify-content:center;width:30px;height:30px;flex:0 0 30px;border-radius:50%;background:#0065ff;color:#fff;font-size:16px}
#stDoppler637 .d-steps>li>div{min-width:0}#stDoppler637 .d-steps p{font-size:13px;margin-top:5px;overflow-wrap:anywhere}
#stDoppler637 .d-steps .d-formula{font-size:16px;font-weight:600}
#stDoppler637 .d-photos .m-help{text-align:center}
#stDoppler637 .d-journal{font-size:15px}
@media(max-width:600px){#stDoppler637 .m-metrics strong{font-size:13px}#stDoppler637 .d-steps>li{gap:8px;padding:8px}#stDoppler637 .d-steps h3{font-size:13px}#stDoppler637 .d-steps .d-formula{font-size:14px}}