:root{--bg: #f6f7f9;--card-bg: #ffffff;--text: #1f2329;--text-2: #646a73;--border: #e5e6eb;--primary: #3370ff;--radius: 10px}*{box-sizing:border-box}html{background:linear-gradient(180deg,#d5e5ff 0%,#e9f2ff 32%,var(--bg) 100%) fixed}html,body{margin:0;padding:0;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}a{color:var(--primary);text-decoration:none}a:hover{opacity:.85}.page{max-width:1080px;margin:0 auto;padding:16px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.text-2{color:var(--text-2)}