:root{--color-primary: #005AAB;--color-primary-dark: #00417a;--color-accent: #0f9f88;--color-warning: #b45309;--color-text: #162033;--color-muted: #5f6f85;--color-line: #d9e2ec;--color-soft: #f4f8fc;--color-white: #ffffff;--shadow: 0 18px 45px rgba(22, 32, 51, .1);font-family:Inter,Noto Sans Thai,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--color-text);background:var(--color-soft)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(135deg,#005aab1f,#0f9f8814 42%,#ffffffe0),var(--color-soft)}input{font:inherit}.site-shell{min-height:100vh}.hero{padding:56px 20px 34px;color:var(--color-white);background:linear-gradient(135deg,#005aabf5,#00417ae0),radial-gradient(circle at 86% 18%,rgba(15,159,136,.38),transparent 32%)}.hero--compact{padding-bottom:46px}.hero__content,.calculator-section,.content-section,footer{width:min(1120px,calc(100% - 40px));margin:0 auto}.eyebrow{margin:0 0 10px;color:inherit;font-size:.82rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{max-width:780px;margin-bottom:14px;font-size:clamp(2rem,7vw,4rem);line-height:1.08;letter-spacing:0}h2{margin-bottom:14px;font-size:clamp(1.45rem,3vw,2rem);line-height:1.25;letter-spacing:0}h3{margin-bottom:8px;font-size:1.08rem;line-height:1.35;letter-spacing:0}.hero__lead{max-width:680px;margin-bottom:18px;font-size:clamp(1rem,2.5vw,1.25rem);line-height:1.75}.official-note{display:inline-flex;max-width:760px;margin:0;padding:10px 14px;border:1px solid rgba(255,255,255,.35);border-radius:8px;background:#ffffff1f;font-weight:700;line-height:1.6}.calculator-section{padding:28px 0 24px}.calculator-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:18px;align-items:stretch}.calculator-card,.summary-panel{border:1px solid var(--color-line);border-radius:8px;background:var(--color-white);box-shadow:var(--shadow)}.calculator-card{padding:24px}.section-heading .eyebrow{color:var(--color-primary)}.calculator-form{display:grid;gap:10px;margin:20px 0}.calculator-form label{font-weight:800}.input-row{display:grid;grid-template-columns:1fr auto;align-items:center;overflow:hidden;border:1px solid #b9c7d8;border-radius:8px;background:#fff}.input-row:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 4px #005aab1f}.input-row input{width:100%;min-width:0;border:0;padding:16px;color:var(--color-text);font-size:1.12rem;outline:0}.input-row span{padding:0 16px;color:var(--color-muted);font-weight:800}.input-help{margin:0;color:var(--color-muted);font-size:.95rem;line-height:1.6}.error-message{margin:0;color:#b42318;font-weight:700;line-height:1.6}.results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.result-box{min-height:112px;padding:16px;border:1px solid var(--color-line);border-radius:8px;background:#f8fbff}.result-box span{display:block;margin-bottom:10px;color:var(--color-muted);font-size:.92rem;font-weight:800;line-height:1.45}.result-box strong{display:block;color:var(--color-primary);font-size:clamp(1.3rem,3vw,1.85rem);line-height:1.18;letter-spacing:0;overflow-wrap:anywhere}.result-box--highlight{border-color:#0f9f8873;background:#effbf8}.result-box--highlight strong{color:#087b68}.summary-panel{display:flex;flex-direction:column;justify-content:center;gap:12px;padding:24px}.formula-line{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px solid var(--color-line)}.formula-line span{color:var(--color-muted);font-weight:700}.formula-line strong{color:var(--color-primary);font-size:1.45rem}.summary-panel p{margin:6px 0 0;color:var(--color-muted);line-height:1.75}.ad-placeholder{display:grid;min-height:96px;margin-top:18px;place-items:center;border:1px dashed #95a7bd;border-radius:8px;color:var(--color-muted);background:#ffffffb8;font-weight:800}.content-section{padding:18px 0 54px}.article{display:grid;gap:28px;padding:30px;border:1px solid var(--color-line);border-radius:8px;background:var(--color-white);box-shadow:var(--shadow)}.article-section{padding-bottom:28px;border-bottom:1px solid var(--color-line)}.article-section--last{padding-bottom:0;border-bottom:0}.article p{color:#334155;line-height:1.85}.article-section p:last-child,.faq-item p:last-child{margin-bottom:0}.feature-list,.example-list,.step-list{margin:0;padding:0}.feature-list,.example-list{display:grid;gap:12px;list-style:none}.feature-list{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-list li,.example-list li{position:relative;min-height:34px;padding-left:30px;color:#334155;line-height:1.7}.feature-list li:before,.example-list li:before{position:absolute;top:.54em;left:0;width:10px;height:10px;border-radius:999px;background:var(--color-accent);content:""}.example-list{padding:16px 18px;border-left:5px solid var(--color-accent);border-radius:8px;background:#f1fbf8}.step-list{display:grid;gap:14px;list-style:none;counter-reset:calculator-step}.step-list li{display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;align-items:start;color:#334155;line-height:1.7;counter-increment:calculator-step}.step-list li:before{display:grid;width:34px;height:34px;place-items:center;border-radius:999px;color:var(--color-white);background:var(--color-primary);content:counter(calculator-step);font-weight:800;line-height:1}.note-text{margin:16px 0 0;padding:12px 14px;border-radius:8px;color:#725000;background:#fff7df;font-weight:700}.ad-placeholder--article{margin:0;background:#fbfcfe}.faq{display:grid;gap:14px;padding-bottom:28px;border-bottom:1px solid var(--color-line)}.faq h2{margin-bottom:2px}.faq-item{padding:16px 0;border-top:1px solid var(--color-line)}.policy-intro,.policy-item p{color:#334155;line-height:1.85}.policy-intro,.policy-item p:last-child{margin-bottom:0}.policy-item{padding-bottom:26px;border-bottom:1px solid var(--color-line)}.policy-item--last{padding-bottom:0;border-bottom:0}.policy-item h2{margin-bottom:10px;font-size:clamp(1.2rem,2.4vw,1.55rem)}.policy-item a{color:var(--color-primary);font-weight:800;overflow-wrap:anywhere}.privacy-dialog{position:fixed;z-index:10;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:20px;background:#16203394}.privacy-dialog__panel{display:grid;grid-template-rows:auto minmax(0,1fr) auto;width:min(920px,100%);max-height:min(760px,calc(100vh - 40px));overflow:hidden;border:1px solid var(--color-line);border-radius:8px;background:var(--color-white);box-shadow:0 24px 70px #16203347}.privacy-dialog__header{display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:16px;padding:24px 24px 18px;border-bottom:1px solid var(--color-line)}.privacy-dialog__header .eyebrow{color:var(--color-primary)}.privacy-dialog__header h2{margin-bottom:10px}.privacy-dialog__body{display:grid;gap:24px;overflow:auto;padding:24px}.privacy-dialog__footer{display:flex;justify-content:flex-end;padding:16px 24px;border-top:1px solid var(--color-line);background:#f8fbff}.dialog-close-button,.dialog-action-button{border-radius:8px;font:inherit;font-weight:800;cursor:pointer}.dialog-close-button{width:44px;height:44px;border:1px solid var(--color-line);color:var(--color-primary);background:#f7fbff;font-size:1.55rem;line-height:1}.dialog-action-button{min-height:44px;padding:0 20px;border:1px solid var(--color-primary);border-radius:8px;color:var(--color-white);background:var(--color-primary)}.dialog-close-button:hover,.dialog-close-button:focus-visible{border-color:var(--color-primary);color:var(--color-primary-dark)}.dialog-action-button:hover,.dialog-action-button:focus-visible{background:var(--color-primary-dark)}.footer-links a:hover,.footer-links a:focus-visible,.footer-link-button:hover,.footer-link-button:focus-visible{color:var(--color-primary-dark);text-decoration:underline}footer{padding:26px 0 34px;color:var(--color-muted);font-size:.95rem;line-height:1.7;text-align:center}.site-footer p{margin-bottom:8px}.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px}.footer-links a{color:var(--color-primary);font-weight:800}.footer-link-button{border:0;padding:0;color:var(--color-primary);background:transparent;font:inherit;font-weight:800;cursor:pointer}@media(max-width:860px){.hero{padding-top:42px}.calculator-grid{grid-template-columns:1fr}}@media(max-width:640px){.hero__content,.calculator-section,.content-section,footer{width:min(100% - 28px,1120px)}.calculator-card,.summary-panel,.article{padding:18px}.article{gap:24px}.article-section,.faq,.policy-item{padding-bottom:24px}.article-section--last,.policy-item--last{padding-bottom:0}.feature-list,.results{grid-template-columns:1fr}.result-box{min-height:92px}.official-note{display:block}.privacy-dialog{align-items:stretch;padding:14px}.privacy-dialog__panel{max-height:calc(100vh - 28px)}.privacy-dialog__header{grid-template-columns:minmax(0,1fr) 40px;padding:18px}.privacy-dialog__body{gap:22px;padding:18px}.privacy-dialog__footer{padding:14px 18px}.dialog-close-button{width:40px;height:40px}}