/* 顶部栏尺寸、文字显隐与换行集中在这里，JS 只负责主题状态。 */
.wukong-topbar{flex:0 0 auto;min-height:88px;display:flex;align-items:center;gap:16px;padding:14px 28px}
.wukong-topbar .wukong-avatar{width:54px;height:54px;flex:0 0 54px;border-radius:15px}
.wukong-topbar .wukong-brand{flex:1 1 auto;min-width:0;gap:5px}
.wukong-topbar .wukong-title{font-size:21px;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wukong-topbar .wukong-subtitle{font-size:11px;letter-spacing:0;line-height:1.5}
.wukong-topbar .wukong-top-actions{display:flex;align-items:center;flex:0 0 auto;gap:12px;margin-left:auto}
.wukong-main-actions{display:flex;align-items:center;gap:8px}
.topbar-control{height:42px;min-width:88px;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 14px;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--text);font-family:inherit;font-size:13px;line-height:1.2;font-weight:600;white-space:nowrap;cursor:pointer;flex-shrink:0}
.topbar-control:hover{border-color:var(--accent);background:var(--surface-2)}
.topbar-control:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.topbar-theme{min-width:76px;color:var(--muted);border-color:transparent;background:transparent}
.topbar-icon{font-size:21px;line-height:1;display:block}
@media(min-width:761px) and (max-width:1100px){
  .wukong-topbar{padding:12px 18px;gap:12px}
  .wukong-topbar .wukong-title{font-size:18px}
  .wukong-topbar .wukong-avatar{width:46px;height:46px;flex-basis:46px}
  .wukong-topbar .wukong-top-actions{gap:6px}.wukong-main-actions{gap:6px}
  .topbar-control{min-width:76px;padding:0 10px;font-size:12px}.topbar-theme{min-width:40px;width:40px;padding:0}
  .topbar-theme-label{display:none}
}
@media(max-width:760px){
  .wukong-topbar{display:grid;grid-template-columns:40px minmax(0,1fr) 40px;grid-template-rows:40px 40px;gap:10px 12px;padding:10px 12px;min-height:110px;flex-basis:auto}
  .wukong-topbar .wukong-avatar{grid-column:1;grid-row:1;width:40px;height:40px;border-radius:11px}
  .wukong-topbar .wukong-brand{grid-column:2;grid-row:1;gap:0;min-width:0}
  .wukong-topbar .wukong-title{font-size:16px;line-height:1.4;letter-spacing:0}
  .wukong-topbar .wukong-subtitle{display:none}
  .wukong-topbar .wukong-top-actions{display:contents}
  .topbar-theme{grid-column:3;grid-row:1;width:40px;min-width:40px;height:40px;padding:0}
  .topbar-theme-label{display:none}
  .wukong-main-actions{grid-column:1/-1;grid-row:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:100%}
  .wukong-main-actions .topbar-control{width:100%;min-width:0;height:40px;padding:0 8px;font-size:13px;border-radius:9px}
}
@media(max-width:350px){.wukong-topbar .wukong-title{font-size:14px}.wukong-topbar{column-gap:8px}.wukong-main-actions{gap:6px}}