.electricity-shell{max-width:1180px;margin:0 auto;padding:34px 20px 70px}.electricity-hero{padding:34px 0 26px}.electricity-hero.compact{padding-bottom:18px}.electricity-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin:8px 0 16px;color:#102a43;letter-spacing:-.045em}.electricity-hero.compact h1{font-size:clamp(32px,4vw,48px)}.electricity-hero p{max-width:820px;margin:0;color:#52606d;font-size:18px;line-height:1.75}.electricity-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:10px 0 30px}.electricity-flow div{display:flex;align-items:center;gap:10px;padding:16px;border:1px solid #d9e2ec;border-radius:16px;background:#fff}.electricity-flow b{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#12355b;color:#fff}.electricity-flow span{font-weight:700;color:#334e68}.electricity-hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.electricity-hub-card{display:flex;flex-direction:column;gap:10px;padding:24px;border:1px solid #d9e2ec;border-radius:20px;background:#fff;text-decoration:none;box-shadow:0 8px 28px rgba(16,42,67,.06);transition:.18s transform,.18s box-shadow}.electricity-hub-card:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(16,42,67,.1)}.electricity-card-icon{font-size:30px}.electricity-hub-card strong{font-size:21px;color:#102a43}.electricity-hub-card>span:not(.electricity-card-icon){color:#627d98;line-height:1.6}.electricity-hub-card em{margin-top:auto;font-style:normal;font-weight:800;color:#1f5fae}.electricity-info-box,.electricity-form-card{margin-top:22px;padding:26px;border:1px solid #d9e2ec;border-radius:20px;background:#fff;box-shadow:0 8px 30px rgba(16,42,67,.05)}.electricity-info-box h2{margin:0 0 10px;font-size:22px;color:#102a43}.electricity-info-box p{margin:0;color:#52606d;line-height:1.75}.electricity-step-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}.electricity-step-head>b{display:inline-block;padding:7px 10px;border-radius:999px;background:#e7f0fb;color:#174a7c;font-size:12px}.electricity-step-head h2{margin:0 0 4px;color:#102a43;font-size:24px}.electricity-step-head p{margin:0;color:#7b8794}.electricity-form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.electricity-field{display:flex;flex-direction:column;gap:7px}.electricity-field>span{font-weight:800;color:#334e68}.electricity-field select,.electricity-field input{width:100%;box-sizing:border-box;border:1px solid #bcccdc;border-radius:12px;background:#fff;padding:12px 13px;font:inherit;color:#102a43;min-height:46px}.electricity-field small{color:#829ab1}.electricity-model-field{grid-column:span 2}.electricity-model-spec,.electricity-fixed-note{margin-top:14px;padding:14px 16px;border-radius:14px;background:#f0f4f8;color:#334e68}.electricity-model-spec strong,.electricity-model-spec span,.electricity-fixed-note strong,.electricity-fixed-note span{display:block}.electricity-model-spec span,.electricity-fixed-note span{margin-top:4px;color:#627d98}.electricity-help{margin:14px 0 0;color:#627d98}.electricity-primary{display:inline-flex;justify-content:center;align-items:center;margin-top:20px;border:0;border-radius:12px;background:#12355b;color:#fff;font-weight:800;font-size:16px;padding:14px 22px;cursor:pointer}.electricity-primary:disabled{opacity:.5;cursor:not-allowed}.electricity-error{margin:14px 0 0;color:#a61b1b;font-weight:700}.electricity-result{scroll-margin-top:20px;margin-top:24px;border-radius:24px;background:#102a43;color:#fff;padding:30px;box-shadow:0 18px 42px rgba(16,42,67,.18)}.electricity-result-main>span{display:block;color:#c8ddf3;font-weight:700}.electricity-result-main>strong{display:block;margin:8px 0;font-size:clamp(36px,6vw,58px);letter-spacing:-.045em}.electricity-result-main p{margin:0;color:#e9f2fb}.electricity-result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.electricity-result-grid div{padding:16px;border-radius:14px;background:rgba(255,255,255,.08)}.electricity-result-grid span{display:block;color:#c8ddf3;font-size:13px}.electricity-result-grid strong{display:block;margin-top:5px;font-size:19px}.electricity-progressive-warning{display:flex;gap:12px;align-items:center;margin-top:18px;padding:16px;border-radius:14px}.electricity-progressive-warning strong,.electricity-progressive-warning span{display:block}.electricity-progressive-warning.is-warning{background:#fff3cd;color:#6a4a00}.electricity-progressive-warning.is-safe{background:#d9f7e6;color:#145a32}.electricity-disclaimer{margin:16px 0 0;color:#c8ddf3;font-size:13px;line-height:1.6}@media(max-width:900px){.electricity-hub-grid{grid-template-columns:repeat(2,1fr)}.electricity-flow{grid-template-columns:repeat(2,1fr)}.electricity-form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.electricity-result-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.electricity-shell{padding:22px 14px 50px}.electricity-hub-grid,.electricity-flow,.electricity-form-grid,.electricity-result-grid{grid-template-columns:1fr}.electricity-model-field{grid-column:auto}.electricity-form-card,.electricity-info-box,.electricity-result{padding:20px;border-radius:18px}.electricity-hero p{font-size:16px}.electricity-progressive-warning{align-items:flex-start;flex-direction:column}}
.electricity-secondary{margin-top:14px;border:1px solid #9fb3c8;border-radius:11px;background:#fff;color:#174a7c;font-weight:800;padding:11px 15px;cursor:pointer}.electricity-manual-box{margin-top:14px;padding:18px;border:1px dashed #9fb3c8;border-radius:14px;background:#f7fafc}.electricity-manual-box .electricity-form-grid{margin:0}.electricity-manual-box .electricity-help{margin-bottom:0}

.electricity-method-note{margin:14px 0 0;padding:12px 14px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.07);color:#e9f2fb;font-size:13px;line-height:1.65}
.electricity-model-spec{overflow-wrap:anywhere}
@media(max-width:620px){
  .electricity-hero{padding:24px 0 18px}
  .electricity-hero h1,.electricity-hero.compact h1{font-size:34px;line-height:1.14}
  .electricity-step-head{gap:10px}
  .electricity-step-head h2{font-size:21px}
  .electricity-field select,.electricity-field input{min-height:48px;font-size:16px}
  .electricity-primary,.electricity-secondary{width:100%;min-height:50px}
  .electricity-result-main>strong{font-size:34px;overflow-wrap:anywhere}
  .electricity-result-grid div{padding:14px}
  .electricity-result-grid strong{font-size:18px;overflow-wrap:anywhere}
  .electricity-hub-card{padding:20px}
}

.electricity-content-section{margin-top:24px;padding:26px;border:1px solid #d9e2ec;border-radius:20px;background:#fff}
.electricity-content-section h2{margin:0 0 12px;color:#102a43;font-size:24px;letter-spacing:-.02em}
.electricity-content-section p{margin:0;color:#52606d;line-height:1.8}
.electricity-content-section ul{margin:14px 0 0;padding-left:20px;color:#52606d;line-height:1.75}
.electricity-faq{display:flex;flex-direction:column;gap:10px}
.electricity-faq-item{border:1px solid #d9e2ec;border-radius:14px;background:#f8fafc}
.electricity-faq-item summary{cursor:pointer;padding:15px 16px;font-weight:800;color:#243b53}
.electricity-faq-item p{padding:0 16px 16px;margin:0;color:#52606d;line-height:1.7}
.electricity-related{margin-top:24px;padding:22px;border-radius:18px;background:#f0f4f8}
.electricity-related>strong{display:block;margin-bottom:12px;color:#102a43}
.electricity-related>div{display:flex;flex-wrap:wrap;gap:8px}
.electricity-related a{display:inline-flex;padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #bcccdc;color:#174a7c;text-decoration:none;font-weight:700;font-size:14px}
.electricity-related a:hover{text-decoration:underline}
@media(max-width:620px){
  .electricity-content-section{padding:20px;border-radius:18px}
  .electricity-content-section h2{font-size:21px}
  .electricity-related{padding:18px}
  .electricity-related>div{flex-direction:column}
  .electricity-related a{border-radius:11px;justify-content:center}
}

/* Visual QA fix: preserve native hidden state even on flex/grid form controls. */
.electricity-calculator [hidden]{display:none!important}