:root{--ib-nav-navy:#071b3b;--ib-nav-ink:#172333;--ib-nav-muted:#64748b;--ib-nav-line:#dbe3ea;--ib-nav-teal:#168f86;--ib-nav-teal-soft:#e8f6f4}#ib-subject-workspace-nav{box-sizing:border-box;color:var(--ib-nav-ink);border-bottom:1px solid var(--ib-nav-line);z-index:39;background:#fff;align-items:stretch;gap:22px;min-height:44px;padding:0 20px;font-family:Inter,PingFang SC,Microsoft YaHei,Arial,sans-serif;display:flex}#ib-subject-workspace-nav *{box-sizing:border-box}#ib-subject-workspace-nav .ib-subject-nav-title{max-width:360px;color:var(--ib-nav-ink);white-space:nowrap;text-overflow:ellipsis;align-items:center;font-size:12px;font-weight:800;display:flex;overflow:hidden}#ib-subject-workspace-nav .ib-subject-nav-links{align-items:stretch;gap:24px;display:flex}#ib-subject-workspace-nav a{color:var(--ib-nav-muted);white-space:nowrap;align-items:center;font-size:12.5px;font-weight:750;text-decoration:none;display:flex;position:relative}#ib-subject-workspace-nav a:hover,#ib-subject-workspace-nav a[aria-current=page]{color:var(--ib-nav-teal)}#ib-subject-workspace-nav a[aria-current=page]:after{content:"";background:var(--ib-nav-teal);border-radius:3px 3px 0 0;height:3px;position:absolute;bottom:0;left:0;right:0}#ib-subject-workspace-nav .ib-subject-nav-disabled{color:#9aa6b6;white-space:nowrap;cursor:not-allowed;align-items:center;font-size:12.5px;font-weight:750;display:flex}#ib-subject-workspace-nav.ib-subject-nav--map{position:fixed;top:56px;left:0;right:0}body.ib-has-subject-nav #main{top:100px}#ib-subject-workspace-nav.ib-subject-nav--document{border:1px solid var(--ib-nav-line);border-radius:12px;margin:18px 0 26px;overflow:auto;box-shadow:0 5px 18px #0f172a09}#ib-subject-workspace-nav.ib-subject-nav--language{border-radius:0 0 12px 12px;margin:0 0 24px;overflow:auto}@media (width<=860px){#ib-subject-workspace-nav{gap:14px;padding:0 12px;overflow-x:auto}#ib-subject-workspace-nav .ib-subject-nav-title{display:none}#ib-subject-workspace-nav .ib-subject-nav-links{gap:19px}#ib-subject-workspace-nav a,#ib-subject-workspace-nav .ib-subject-nav-disabled{font-size:11.5px}}