.topbar{position:sticky;top:0;z-index:200;isolation:isolate;height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 1.25rem;background:var(--topbar-bg, rgba(13,14,18,.88));border-bottom:1px solid var(--bd);backdrop-filter:blur(12px)}.topbar-left,.topbar-right{display:flex;align-items:center;gap:.6rem}.tbu-av-btn{height:38px}.menu-btn{display:inline-flex;align-items:center;gap:.35rem;font-size:.8rem;font-weight:600;height:38px;padding:0 .75rem;border-radius:var(--r2, 6px);border:1px solid rgba(99,102,129,.45);background:none;color:#c0c5dc;transition:all .15s;text-decoration:none;cursor:pointer;font-family:inherit;white-space:nowrap;box-sizing:border-box}.menu-btn:hover{border-color:var(--ac);color:var(--ac)}#chatNavBtn svg{color:#60a5fa}.menu-btn.danger:hover{border-color:var(--er);color:var(--er)}.tb-sep{width:1px;height:16px;background:var(--bd);flex-shrink:0}.tb-page-title{font-size:.88rem;font-weight:600;color:var(--tx);position:absolute;left:50%;transform:translate(-50%);white-space:nowrap}.tb-live-wrap{position:relative;display:inline-flex;align-items:center;justify-content:center;width:8px;height:8px;flex-shrink:0}.tb-live-dot{width:7px;height:7px;border-radius:50%;background:#fc043a;flex-shrink:0}.tb-live-ping{position:absolute;width:8px;height:8px;border-radius:50%;background:red;animation:tbLivePing 1.5s cubic-bezier(0,0,.2,1) infinite}@keyframes tbLivePing{0%{transform:scale(1);opacity:.75}75%,to{transform:scale(2.8);opacity:0}}[data-theme=light] .topbar{border-bottom-color:#ffffff2e}[data-theme=light] .menu-btn{color:#ffffffe6;border-color:#ffffff40}[data-theme=light] .menu-btn:hover{color:#fff;border-color:#fff9;background:#ffffff26}[data-theme=light] .tb-page-title{color:#ffffffeb}[data-theme=light] .tb-sep{background:#ffffff40}.tb-hamburger{display:none;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r2, 6px);border:1px solid rgba(99,102,129,.45);background:none;color:#c0c5dc;cursor:pointer;transition:all .15s;flex-shrink:0}.tb-hamburger:hover{border-color:var(--ac);color:var(--ac)}[data-theme=light] .tb-hamburger{color:#ffffffe6;border-color:#ffffff40}[data-theme=light] .tb-hamburger:hover{color:#fff;border-color:#fff9;background:#ffffff26}.tb-mobile-panel{display:none;position:fixed;top:60px;right:1rem;z-index:250;flex-direction:column;gap:.15rem;background:var(--s2);border:1px solid var(--bd);border-radius:var(--r, 10px);padding:.4rem;min-width:200px;box-shadow:0 12px 32px #0006}.tb-mobile-panel.open{display:flex}.tb-mobile-item{display:flex;align-items:center;gap:.55rem;padding:.55rem .7rem;border-radius:7px;font-size:.85rem;font-weight:500;color:var(--tx);text-decoration:none;transition:background .12s}.tb-mobile-item:hover{background:var(--s3)}@media(max-width:1400px){.tb-hamburger{display:flex}.menu-btn-extra1{display:none}}@media(max-width:1300px){.tb-hamburger{display:flex}.menu-btn-extra2{display:none}}@media(max-width:1110px){.menu-btn,.tbu-guest-register,.tbu-guest-login{font-size:.68rem}}@media(max-width:1050px){.menu-btn,.tbu-guest-register,.tbu-guest-login{font-size:.6rem}}@media(max-width:1000px){.menu-btn,.tbu-guest-register,.tbu-guest-login{font-size:.75rem}.menu-btn-extra4{display:none}}@media(max-width:960px){.menu-btn{font-size:.75rem}.tbu-guest-register,.tbu-guest-login{display:none}}@media(max-width:840px){.menu-btn{font-size:.75rem}}@media(max-width:768px){.tb-page-title{display:none}.topbar:not(.topbar-logo-mobile) .site-logo-text{display:none}.topbar-left a[href="#"],.menu-btn-extra3 .menu-btn-label,.menu-btn-extra5 .menu-btn-label{display:none}}@media(max-width:700px){.menu-btn{font-size:.72rem}}@media(max-width:660px){.tbu-chatroom .menu-btn-label{display:none}}@media(max-width:580px){.menu-btn-extra5{display:none}}@media(max-width:520px){.topbar{padding:0 .75rem}.topbar-left,.topbar-right{gap:.3rem}.menu-btn-label{display:none}.menu-btn{padding:0 .55rem}.menu-btn.menu-btn-tier2{display:none}}@media(max-width:400px){.topbar{padding:0 .5rem}.topbar-right{gap:.15rem}.menu-btn{padding:0 .4rem;width:33px;height:34px}.tbu-mail-topbar-btn,.tbu-theme-btn{width:33px;height:34px}.tbu-av-btn{height:34px}}