.header{background:#fff;border-bottom:1px solid var(--line, #e2e8f0)}.header:empty{min-height:71px}.shared-header-inner{max-width:1080px;margin:0 auto;min-height:42px;padding:14px 16px;display:flex;justify-content:space-between;align-items:center}.shared-brand{font-weight:700;color:var(--accent-strong, #0b4cb8);text-decoration:none}.shared-nav{display:flex;align-items:center;gap:12px}.shared-link{color:var(--muted, #53637a);text-decoration:none}.shared-user{color:var(--muted, #53637a);font-size:13px}.shared-btn{border:1px solid var(--accent-line, #bfd2f4);background:var(--accent-bg, #eef4ff);color:var(--accent-strong, #0b4cb8);border-radius:999px;padding:8px 14px;font-weight:600;cursor:pointer}