html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px}.brand{font-size:18px;font-weight:700}.brand-link{text-decoration:none;color:inherit}.brand-link span{color:#18a058;margin:0 4px}.app-footer{text-align:center;padding:16px;font-size:12px;opacity:.7}