:root{font-family:"Segoe UI","Malgun Gothic",system-ui,sans-serif;color:#203b43;background:#f1f6f5}*{box-sizing:border-box}body{margin:0;height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden}header{display:flex;align-items:center;gap:30px;padding:12px 28px;background:#fff;border-bottom:1px solid #d7e4e1;flex-shrink:0}.brand{display:flex;gap:12px;align-items:baseline;white-space:nowrap}.brand strong{font-size:18px}.brand span{font-size:10px;color:#66817e;letter-spacing:.8px}nav{display:flex;gap:5px;background:#edf4f1;padding:4px;border-radius:12px}button{font:inherit;font-size:14px;font-weight:600;min-width:110px;padding:11px 17px;border:0;border-radius:9px;color:#4a6865;background:transparent;cursor:pointer}button[aria-selected=true]{background:#007f75;color:#fff;box-shadow:0 2px 5px #007f7520}button:focus-visible{outline:3px solid #62b7a4;outline-offset:2px}header p{margin:0 0 0 auto;font-size:12px;color:#68817e}section{flex:1;min-height:0}iframe{display:block;width:100%;height:100%;border:0}[hidden]{display:none!important}@media(max-width:760px){header{padding:10px 12px;gap:12px;flex-wrap:wrap}.brand{flex:1;gap:8px}.brand strong{font-size:16px}.brand span{font-size:9px}button{min-width:80px;padding:10px 12px;font-size:13px}header p{display:none}}@media(max-width:370px){.brand span{display:none}}

@media(max-width:1100px){header{gap:16px;flex-wrap:wrap}header p{display:none}nav{max-width:100%;overflow-x:auto}}@media(max-width:760px){nav{width:100%}nav button{flex:1;min-width:70px;padding:10px 8px}}