html,body,div,header,footer,nav,main,section,article,h1,h2,h3,h4,h5,h6,p,span,a,img,ul,ol,li,form,input,button,dl,dt,dd,pre,fieldset,textarea,blockquote,th,td{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:#f8f9fa;color:#333;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}.header{background:#fff;padding:24px 16px;text-align:center;box-shadow:0 1px 3px rgba(0,0,0,.1)}.header h1{font-size:24px;font-weight:600;color:#333;margin-bottom:6px}.header p{font-size:14px;color:#666}.breadcrumb a{color:#596b78;text-decoration:none;transition:all .2s ease}.breadcrumb a:hover{color:#0056b3;text-decoration:underline}.breadcrumb .separator{margin:0 3px;color:#999}.breadcrumb .current{color:#999}.footer{background:#fff;margin-top:auto;padding:20px 16px;text-align:center;border-top:1px solid #eee}.footer p{font-size:13px;color:#999;margin-bottom:8px}.footer a{color:#666;text-decoration:none;margin:0 12px;font-size:12px}.footer a:hover{color:#333}