:root{--mh5-color-primary: #2563eb;--mh5-color-text: #111827;--mh5-color-text-secondary: #8a8f99;--mh5-color-bg: #f6f7f9;--mh5-radius-card: 12px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--mh5-color-bg);color:var(--mh5-color-text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}button{font-family:inherit;cursor:pointer}.mh-page{min-height:100vh;padding:0 14px calc(16px + env(safe-area-inset-bottom));box-sizing:border-box}.mh-topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:10px;margin:0 -14px 12px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:#ffffffeb;backdrop-filter:blur(8px);border-bottom:1px solid #eef0f3}.mh-topbar h1{flex:1;margin:0;font-size:16px;font-weight:600}.mh-card{background:#fff;border-radius:var(--mh5-radius-card);box-shadow:0 1px 2px #1118270a}.mh-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;color:#fff;background:var(--mh5-color-primary);border:0;border-radius:999px;font-size:14px;font-weight:500}.mh-btn:disabled{color:#fff;background:#c7ccd4;cursor:not-allowed}.mh-tag{display:inline-block;padding:2px 8px;color:#6b7280;background:#f3f4f6;border-radius:999px;font-size:11px;line-height:18px}.mh-muted{color:var(--mh5-color-text-secondary)}.mh-error{margin:0 0 12px;padding:10px 12px;color:#b42318;background:#fef3f2;border-radius:10px;font-size:13px}