#fuelCalc{max-width:420px;margin:20px auto;padding:16px;background:#fff;border:1px solid #e3e3e3;border-radius:12px;box-shadow:0 6px 16px rgba(0,0,0,.05);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}#fuelCalc h3{text-align:center;font-size:18px;margin-bottom:16px;color:#222}#fuelCalc label{font-size:13px;color:#555;display:block;margin-bottom:4px}#fuelCalc input{width:100%;padding:9px 10px;font-size:14px;border-radius:8px;border:1px solid #ccc;margin-bottom:12px;box-sizing:border-box}#fuelCalc input:focus{border-color:#2b7cff;outline:none}#fuelCalc button{padding:9px 14px;font-size:14px;border:none;border-radius:8px;background:#2b7cff;color:#fff;cursor:pointer;transition:background .2s ease}#fuelCalc button:hover{background:#1f5fd1}#fuelCalc button.active{background:#444}#fuelCalc .switcher{display:flex;gap:8px;margin-bottom:14px}#fuelCalc .switcher button{flex:1}#fuelCalc p{margin-top:12px;padding:10px;background:#f1f6ff;border-radius:8px;font-size:14px;color:#111}.support-box{max-width:520px;margin:40px auto;padding:20px;border-radius:12px;background:#fff;box-shadow:0 8px 25px rgba(0,0,0,.12);font-family:Arial,sans-serif}.support-box h3{text-align:center;margin-bottom:15px;font-size:22px}.support-note{text-align:center;color:#666;font-size:14px;margin-bottom:15px}.show-requisites-btn{display:block;margin:0 auto 15px;padding:10px 20px;font-size:15px;cursor:pointer;border-radius:8px;border:none;background-color:#008000;color:#fff;transition:background .3s}.show-requisites-btn:hover{background-color:#060}.support-methods p{margin:8px 0;font-size:15px}.support-iframe{text-align:center;margin-top:15px}.bbp-topic-title,.bbp-reply-content{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}li.bbp-topic-description{display:none!important}.faq-block details{margin-bottom:10px;padding:12px;background:#f7f7f7;border-radius:6px}.faq-block summary{cursor:pointer;font-weight:600}.faq-block details[open]{background:#eef6ff}