.tutorial-shared-nav{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif!important;background:#fff!important;color:#223f72!important;border-bottom:1px solid #e7ecf4!important;padding:0 20px!important;position:relative;z-index:50}.tutorial-shared-nav-inner{max-width:1240px;margin:auto;min-height:66px;display:flex;align-items:center;gap:12px}.tutorial-shared-nav img{width:34px;height:34px;border-radius:8px;object-fit:cover}.tutorial-shared-nav a{color:#2454aa!important;text-decoration:none!important;font-size:14px;font-weight:750}.tutorial-shared-nav b{color:#1f3d70;font-size:17px}.tutorial-shared-nav .tutorial-shared-return{margin-left:auto}.tutorial-shared-nav+picture{display:block}
.tutorial-short-video-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,#6a4bbf,#a86dd9);color:#fff;font-size:15px}