:root{color-scheme:light;font-family:"Noto Serif SC",Songti SC,STSong,serif;color:#1f1f1f;background:#f5f3ee}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.app-shell{width:min(560px,100%)}.portal-card{background:#ffffffc7;border:1px solid #d9d2c6;padding:48px 32px 28px;text-align:center}h1,p,footer{margin:0}h1{font-size:2rem;font-weight:600;letter-spacing:.08em}p{margin-top:18px;font-size:.98rem;line-height:1.7;color:#57534e}footer{margin-top:56px;padding-top:18px;border-top:1px solid #e7e0d5;font-size:.95rem}a{color:#44403c;text-decoration:none}a:hover,a:focus-visible{text-decoration:underline}