.article-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid #deded9;box-shadow:0 4px 18px rgba(37,37,37,.05);backdrop-filter:blur(12px)}.article-header-inner{width:min(100%,1120px);min-height:88px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:28px}.article-brand{color:#b9523f;font:700 18px Georgia,serif;letter-spacing:.04em;white-space:nowrap}.article-brand span{margin-left:8px;color:#252525;font:700 13px Arial,sans-serif;letter-spacing:.1em}.article-header-nav{display:flex;align-items:center;justify-content:flex-end;gap:22px;min-width:0;overflow-x:auto;scrollbar-width:none;font-size:13px;font-weight:700;white-space:nowrap}.article-header-nav::-webkit-scrollbar{display:none}.article-header-nav a{flex:none;padding:8px 0;color:#686866;border-bottom:2px solid transparent}.article-header-nav a.is-active,.article-header-nav a:focus-visible,.article-header-nav a:hover{color:#b9523f}.article-header-nav a.is-active{border-bottom-color:#b9523f}.article-header-coming-soon{flex:none;padding:8px 0;color:#aaa9a4;font-size:12px}.article-theme-nav{width:min(100%,1120px);margin:0 auto;padding:0 24px 42px;display:flex;align-items:center;flex-wrap:wrap;gap:8px}.article-theme-nav-label{margin-right:6px;color:#9a9995;font-size:12px}.article-theme-nav a{padding:9px 15px;border:1px solid #deded9;border-radius:999px;background:#fff;color:#686866;font-size:12px;font-weight:700;transition:border-color .2s ease,background .2s ease,color .2s ease}.article-theme-nav a.is-active,.article-theme-nav a:focus-visible,.article-theme-nav a:hover{border-color:#b9523f;background:#b9523f;color:#fff}@media (max-width:600px){.article-header-inner{min-height:72px;gap:18px;padding:0 20px}.article-brand{font-size:16px}.article-brand span{font-size:11px}.article-header-nav{justify-content:flex-start;gap:16px;font-size:11px}.article-header-coming-soon{font-size:10px}.article-theme-nav{padding:0 20px 32px}}