.jm-pubhead{--ph-bg:rgba(255,255,255,.98);--ph-surface:#ffffff;--ph-line:#d9e2ef;--ph-text:#1c1b1a;--ph-text-soft:#4a4844;--ph-blue:#2c64d7;position:sticky;top:0;z-index:50;border-bottom:1px solid var(--ph-line);background:var(--ph-bg);-webkit-backdrop-filter:blur(20px) saturate(130%);backdrop-filter:blur(20px) saturate(130%)}:root[data-theme=dark] .jm-pubhead{--ph-bg:rgba(10,33,60,.9);--ph-surface:rgba(19,55,94,.48);--ph-line:rgba(149,186,225,.22);--ph-text:#f7fbff;--ph-text-soft:#ccd8e5;--ph-blue:#2489ff}.jm-pubhead .ph-inner{width:min(1180px,calc(100% - 40px));margin:0 auto;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}.jm-pubhead .ph-brand{display:inline-flex;align-items:center;flex-shrink:0}.jm-pubhead .ph-controls{display:flex;align-items:center;gap:10px}.jm-pubhead .ph-login{display:inline-flex;align-items:center;min-height:40px;padding:8px 16px;border:1px solid var(--ph-line);border-radius:8px;color:var(--ph-text);background:var(--ph-surface);font-size:14px;font-weight:550;cursor:pointer;transition:color .16s,border-color .16s,background .16s}.jm-pubhead .ph-login:hover{color:var(--ph-blue);border-color:var(--ph-blue)}.jm-pubhead .ph-theme{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--ph-line);border-radius:8px;color:var(--ph-text-soft);background:var(--ph-surface);cursor:pointer;transition:color .16s,border-color .16s}.jm-pubhead .ph-theme:hover{color:var(--ph-blue);border-color:var(--ph-blue)}.jm-pubhead[data-variant=full] .ph-inner{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:16px 24px}.jm-pubhead .ph-search{min-width:0}.jm-pubhead .ph-select select{appearance:none;min-height:40px;padding:8px 30px 8px 12px;border:1px solid var(--ph-line);border-radius:8px;color:var(--ph-text);background:var(--ph-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%236b6862' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 10px center;font-size:13px;cursor:pointer}:root[data-theme=dark] .jm-pubhead .ph-select select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%23cbd9e8' stroke-width='1.5'/%3E%3C/svg%3E")}.jm-pubhead .ph-login:focus-visible,.jm-pubhead .ph-select select:focus-visible,.jm-pubhead .ph-theme:focus-visible{outline:none;border-color:var(--ph-blue)}.jm-pubhead .ph-search .us-field:focus-within{border-color:var(--ph-blue)}@media (max-width:880px){.jm-pubhead .ph-select{display:none}}@media (max-width:560px){.jm-pubhead .ph-inner{width:calc(100% - 24px);min-height:56px}.jm-pubhead[data-variant=full] .ph-search{display:none}.jm-pubhead[data-variant=full] .ph-inner{grid-template-columns:1fr auto}}