:root{--bg-main:linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);--color-title:#2c3e50;--color-text:#34495e;--color-link:#3498db;--color-meta:#7f8c8d;--card-bg:#ffffff86}@media (prefers-color-scheme:dark){:root{--bg-main:linear-gradient(135deg, #1a1c2c 0%, #4a596a 100%);--color-title:#eceff4;--color-text:#d8dee9;--color-link:#5eb5f7;--color-meta:#9ca3af;--card-bg:#00000059}}body{background:var(--bg-main);color:var(--color-text);background-attachment:fixed;margin:0;padding:0;font-family:PingFang TC,Microsoft JhengHei,sans-serif;line-height:1.8}h1{color:var(--color-title);margin-bottom:.5em;font-size:2.5em;font-weight:700}.div{background:var(--card-bg);transform:display .3s ease-out;border-radius:16px;margin:20px;padding:20px;overflow:visible;box-shadow:0 10px 25px #0000003d}