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18px;gap:18px;position:relative;z-index:40;flex-wrap:nowrap;overflow:hidden}.topbar-left,.topbar-right{display:flex;align-items:center;gap:18px;min-width:0;flex-shrink:0}.topbar-left{gap:14px;overflow:hidden}.topbar-right{gap:12px;flex-shrink:1;min-width:0}.topbar-mode-group{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary);flex-shrink:1;min-width:0}.topbar-mode-chip{padding:2px 7px;border-radius:4px;background:transparent;border:1px solid var(--primary-color);color:var(--primary-color);font-weight:700;font-size:11px;white-space:nowrap}.topbar-mode-name{font-size:14px;font-weight:700;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.topbar-band-label{font-size:11px;color:var(--text-secondary);margin-left:2px;white-space:nowrap}.topbar-band-count{font-size:11px;color:var(--text-primary);font-weight:700;padding:3px 8px;border-radius:4px;background:#12171f;border:1px solid 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.2s;white-space:nowrap}.topbar-eq-toggle:hover{background:#ffffff1a}.topbar-eq-toggle.active{background:var(--primary-color);border-color:var(--primary-color);color:#fff}.topbar-eq-toggle:disabled{opacity:.5;cursor:not-allowed}.eq-toggle-label{font-size:12px}.topbar-divider{width:1px;height:24px;background:var(--border-color);flex-shrink:0}.topbar-lang-switch{display:flex;align-items:center;background:#12171f;border:1px solid #1c232d;border-radius:8px;padding:3px;gap:3px}.topbar-lang-option{padding:5px 11px;border-radius:6px;border:none;background:transparent;color:#8a97a4;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease;line-height:1.2;outline:none}.topbar-lang-option:hover{color:#e6edf3}.topbar-lang-option.active{background:var(--primary-color, #da003a);color:#fff;font-weight:700}.device-settings-panel{position:absolute;inset:56px 0 0;background:#0b0e13;z-index:35;display:flex;flex-direction:column}.device-settings-arrow{position:absolute;top:-12px;right:220px;width:0;height:0;border-left:12px solid transparent;border-right:12px solid transparent;border-bottom:12px solid var(--primary-color);filter:drop-shadow(0 -2px 4px rgba(218,0,58,.5));z-index:2}.device-settings-content{flex:1;display:flex;flex-direction:column;border-top:3px solid var(--primary-color);overflow:hidden}.device-settings-header{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 24px;border-bottom:1px solid var(--border-color);flex-shrink:0}.device-settings-title{font-size:16px;font-weight:700;color:var(--text-primary)}.device-settings-body{flex:1;overflow-y:auto;padding:0}.device-settings-header-left{display:flex;align-items:center;gap:12px}.device-settings-icon{flex-shrink:0}.device-settings-subtitle{font-size:11px;color:var(--text-secondary);margin-top:2px}.device-settings-close{display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:8px;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-secondary);font-size:12px;cursor:pointer;transition:background .2s,color .2s}.device-settings-close:hover{background:var(--hover-bg);color:var(--text-primary)}.dsettings-wrapper{max-width:1200px;margin:0 auto;padding:24px 28px;display:flex;flex-direction:column;gap:24px}.dsettings-section{display:flex;flex-direction:column;gap:14px}.dsettings-section>h3,.dsettings-section-header h3{font-size:15px;font-weight:700;color:var(--text-primary);margin:0}.dsettings-section-header{display:flex;align-items:baseline;gap:8px}.dsettings-section-header span{font-size:11px;color:var(--text-secondary)}.dsettings-card{background:#0c1017;border:1px solid #161d26;border-radius:10px;padding:14px}.dsettings-card .device-control-title{font-size:12px;color:var(--text-secondary);font-weight:600;margin-bottom:12px}.dsettings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}.device-settings-body .eq-switch .slider{width:40px;height:22px;border-radius:11px;background:#1c232d}.device-settings-body .eq-switch .slider:before{width:16px;height:16px;top:3px;left:3px}.device-settings-body .eq-switch input:checked+.slider{background:var(--primary-color)}.device-settings-body .eq-switch input:checked+.slider:before{transform:translate(18px)}.led-control-row{display:flex;align-items:center;justify-content:space-between}.led-preview{width:22px;height:22px;border-radius:50%;background:var(--primary-color);box-shadow:0 0 12px 2px #da003a99}.dsettings-card .volume-slider-row{margin:8px 0 12px}.dsettings-card .mode-toggle{display:flex;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:9px;padding:4px;gap:4px}.dsettings-card .mode-button{flex:1;text-align:center;padding:7px 0;border-radius:6px;font-size:12px;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;font-weight:500;transition:background .15s,color .15s}.dsettings-card .mode-button.active{background:var(--primary-color);color:#fff;font-weight:700}.dsettings-eq32-row{display:flex;align-items:center;justify-content:space-between;gap:16px}.dsettings-eq32-title{font-size:14px;font-weight:700;color:var(--text-primary)}.dsettings-eq32-state{font-size:11px;color:var(--text-secondary);margin-top:3px}.dsettings-version-card{display:flex;align-items:center;justify-content:space-between;gap:16px}.dsettings-version-value{font-size:22px;font-weight:800;color:var(--text-primary)}.dsettings-btn-ghost,.dsettings-btn-outline{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:12px;font-size:12px;cursor:pointer;font-weight:600;transition:background .15s,border-color .15s,color .15s}.dsettings-btn-ghost{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-primary)}.dsettings-btn-ghost:hover:not(:disabled){background:var(--hover-bg)}.dsettings-btn-ghost:disabled{opacity:.5;cursor:not-allowed}.dsettings-btn-outline{background:transparent;border:1px solid #3a4552;color:var(--text-secondary)}.dsettings-btn-outline:hover:not(:disabled){border-color:var(--primary-color);color:var(--primary-color)}.dsettings-btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--primary-color);border:none;color:#fff;border-radius:8px;padding:9px 18px;font-size:12px;font-weight:600;cursor:pointer;transition:background .15s ease,opacity .15s ease}.dsettings-btn-primary:hover:not(:disabled){background:#b80030}.dsettings-btn-primary:disabled{opacity:.5;cursor:not-allowed}.dsettings-upgrade-card{display:flex;flex-direction:column;gap:12px;padding:16px}.dsettings-upgrade-card .firmware-file-section{margin-bottom:0}.dsettings-upgrade-card .firmware-warning{color:#d0687f;font-size:11px;line-height:1.5;background:#da003a14;border:1px solid rgba(218,0,58,.28);border-radius:8px;padding:8px 10px}.connection-gate{position:absolute;inset:56px 0 0;background:#0a0d12;z-index:30;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:20px}.connection-gate-icon{width:66px;height:66px;border-radius:50%;border:2px dashed #3a4552;display:flex;align-items:center;justify-content:center;color:#5b6670}.connection-gate-title{font-size:21px;font-weight:700;color:var(--text-primary)}.connection-gate-msg{font-size:14px;color:var(--text-secondary);max-width:420px;line-height:1.6}.connection-gate-btn{display:flex;align-items:center;gap:9px;background:var(--primary-color);border:none;color:#fff;border-radius:10px;padding:13px 34px;font-size:15px;font-weight:700;cursor:pointer;margin-top:4px;transition:background .2s}.connection-gate-btn:hover{background:#a8002c}.connection-gate-hint{font-size:12px;color:#6b7480;margin-top:2px}#deviceSettingsPanel .device-container{width:100%;min-width:auto;max-width:1200px;margin:0 auto;padding:0;min-height:auto;display:block}#deviceSettingsPanel .dsettings-section{margin-bottom:24px}#deviceSettingsPanel .device-section{justify-content:flex-start;align-items:flex-start;gap:20px;margin-bottom:0}#deviceSettingsPanel .device-section-title-wrapper{flex:0 0 130px;align-self:flex-start}#deviceSettingsPanel .device-section-main{flex:1;min-width:0}#deviceSettingsPanel .device-control-row{justify-content:flex-start;margin-top:0;gap:16px}#deviceSettingsPanel .device-control-card{flex:1 1 260px;min-width:220px;max-width:360px;align-items:stretch}#deviceSettingsPanel .device-status-info{text-align:left}#deviceSettingsPanel .firmware-section{align-items:flex-start}#deviceSettingsPanel .firmware-file-info{word-break:break-all}#deviceSettingsPanel .device-section-title{font-size:1.1rem}.app-footer{position:fixed;bottom:6px;right:12px;z-index:1000;font-size:11px;color:var(--text-secondary);pointer-events:none;user-select:none;opacity:.7}.app-footer span{font-family:IBM Plex Mono,monospace}