:root{--bg:#0b0d12;--bg-elev:#14171f;--text:#e6e8ee;--text-dim:#8a90a0;--border:#232733;--accent:#4f8cff;--danger:#ff5d5d;--shadow:0 10px 30px #00000059;--ok:#6dd58c;--warn:#f6c177;--err:#ff9a9a;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono:ui-monospace, Consolas, "SF Mono", monospace;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);font:16px/1.5 var(--font-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;padding:0}html{overscroll-behavior:none}body{min-height:100dvh;overflow:hidden}button{font:inherit;color:inherit;cursor:pointer}input,textarea,select{font:inherit}.app-shell{background:radial-gradient(1200px 600px at 20% -10%, #4f8cff1f, transparent 60%), radial-gradient(900px 500px at 100% 100%, #aa3bff14, transparent 60%), var(--bg);grid-template-rows:auto 1fr auto;width:100%;height:100%;display:grid}.app-header{min-width:0;padding:18px 24px 8px}.app-title{letter-spacing:.4px;color:var(--text);margin:0;font-size:20px;font-weight:600}.app-subtitle{color:var(--text-dim);margin:4px 0 0;font-size:13px}.app-main{min-width:0;min-height:0;padding:12px 24px;display:flex}.app-main>*{flex:auto;min-width:0;min-height:0}.app-footer{min-width:0;padding:8px 24px 18px}@media (width<=640px){.app-header{padding:12px 14px 6px}.app-title{font-size:17px}.app-subtitle{font-size:12px;display:none}.app-main{padding:8px 10px}.app-footer{padding:6px 10px 12px}}.empty-state{justify-content:center;align-items:center;width:100%;display:flex}.empty-state__card{background:var(--bg-elev);border:1px solid var(--border);width:100%;max-width:640px;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;align-items:stretch;gap:14px;padding:32px 28px;display:flex}.empty-state__icon{width:64px;height:64px;color:var(--accent);background:linear-gradient(135deg,#4f8cff2e,#aa3bff1f);border-radius:16px;justify-content:center;align-self:center;align-items:center;margin-bottom:4px;display:flex}.empty-state__title{text-align:center;color:var(--text);margin:0;font-size:18px;font-weight:600}.empty-state__hint{text-align:center;color:var(--text-dim);margin:0;font-size:13px}.empty-state__hint code{border:1px solid var(--border);background:#ffffff0f;border-radius:4px;padding:1px 6px;font-size:12px}.empty-state__form{gap:8px;margin-top:6px;display:flex}.empty-state__input{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:8px;outline:none;flex:auto;padding:11px 14px;font-size:14px;transition:border-color .15s,box-shadow .15s}.empty-state__input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4f8cff33}.empty-state__submit{border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;border-radius:8px;padding:0 22px;font-size:14px;font-weight:500;transition:filter .15s,transform 50ms,opacity .15s}.empty-state__submit:hover:not(:disabled){filter:brightness(1.08)}.empty-state__submit:active:not(:disabled){transform:translateY(1px)}.empty-state__submit:disabled{opacity:.6;cursor:progress}.empty-state__error{color:var(--danger);background:#ff5d5d1a;border:1px solid #ff5d5d59;border-radius:6px;flex-direction:column;gap:4px;padding:8px 12px;font-size:13px;display:flex}.empty-state__probe{font-family:var(--font-mono);color:var(--text-dim);font-size:12px}.empty-state__example{color:var(--accent);cursor:pointer;background:0 0;border:none;border-radius:4px;align-self:center;padding:4px 6px;font-size:13px;transition:background .15s}.empty-state__example:hover{background:#4f8cff1f;text-decoration:underline}@media (width<=640px){.empty-state__card{border-radius:10px;gap:12px;padding:22px 18px}.empty-state__icon{width:52px;height:52px}.empty-state__title{font-size:16px}.empty-state__hint{font-size:12px}}@media (width<=480px){.empty-state__form{flex-direction:column}.empty-state__submit{padding:10px 22px}}.url-bar{border:1px solid var(--border);background:var(--bg-elev);border-radius:8px;align-items:center;gap:12px;padding:10px 12px;display:flex}.url-bar__current{flex:auto;align-items:center;gap:8px;min-width:0;display:flex}.url-bar__label{color:var(--text-dim);border:1px solid var(--border);background:#ffffff0d;border-radius:999px;flex:none;padding:2px 8px;font-size:12px}.url-bar__value{min-width:0;color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-family:var(--font-mono);flex:auto;overflow:hidden}.url-bar__actions{flex:none;gap:6px;display:flex}.url-bar__btn{border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;border-radius:6px;padding:6px 12px;font-size:13px;transition:filter .15s}.url-bar__btn:hover{filter:brightness(1.08)}.url-bar__btn--ghost{border-color:var(--border);color:var(--text);background:0 0}.url-bar__btn--ghost:hover{filter:none;background:#ffffff0f}@media (width<=640px){.url-bar{flex-wrap:wrap;gap:8px;padding:8px 10px}.url-bar__current{flex:100%;order:1}.url-bar__actions{flex:auto;order:2;justify-content:flex-end}.url-bar__btn{padding:6px 10px;font-size:12px}}.player{width:100%;height:100%;min-height:0;box-shadow:var(--shadow);background:#000;border-radius:8px;flex-direction:column;display:flex;overflow:hidden}.player__stage{background:#000;flex:auto;min-height:0;display:flex;position:relative}.player__video{object-fit:contain;background:#000;outline:none;width:100%;min-width:0;max-width:100%;height:100%;min-height:0}.player__overlay{color:#fff;text-align:center;background:#0009;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:16px;display:flex;position:absolute;inset:0}.player__overlay--soft{background:#00000040}.player__overlay-card{border:1px solid var(--border);background:#14171ff2;border-radius:8px;flex-direction:column;gap:10px;max-width:420px;padding:18px 22px;display:flex}.player__overlay-title{color:var(--danger);font-size:16px;font-weight:600}.player__overlay-msg{color:var(--text);word-break:break-all;text-align:left;font-size:13px;font-family:var(--font-mono);background:#00000059;border-radius:6px;max-height:140px;padding:8px 10px;overflow:auto}.player__overlay-actions{justify-content:flex-end;gap:8px;display:flex}.player__spinner{border:3px solid #ffffff40;border-top-color:#fff;border-radius:50%;width:36px;height:36px;animation:.8s linear infinite player-spin}@keyframes player-spin{to{transform:rotate(360deg)}}.player__hud{pointer-events:none;z-index:2;align-items:center;gap:6px;display:flex;position:absolute;top:10px;left:12px}.player__status{color:#fff;letter-spacing:.4px;background:#00000073;border:1px solid #ffffff1f;border-radius:999px;padding:3px 8px;font-size:12px}.player__traffic{color:#9fd3ff;letter-spacing:.4px;font-variant-numeric:tabular-nums;background:#00000073;border:1px solid #4f8cff59;border-radius:999px;padding:3px 8px;font-size:12px}.player__status[data-status=playing],.player__status[data-status=live-online],.player__status[data-status=buffer-full],.player__status[data-status=loaded]{border-color:#4f8cff99}.player__status[data-status=error]{color:#ffd7d7;border-color:#ff5d5d99}.player__debug-toggle{color:#fff;cursor:pointer;background:#00000073;border:1px solid #ffffff1f;border-radius:6px;justify-content:center;align-items:center;width:28px;height:28px;display:inline-flex;position:absolute;top:8px;right:10px}.player__debug-toggle:hover{background:#000000b3}.player__debug{border-top:1px solid var(--border);color:var(--text-dim);background:#0d1018;flex-direction:column;gap:6px;max-height:240px;padding:10px 14px;font-size:12px;display:flex;overflow:auto}.player__debug-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.player__debug-row--log{flex-direction:column;align-items:flex-start}.player__debug-label{color:var(--text);border:1px solid var(--border);background:#ffffff0f;border-radius:999px;flex:none;padding:1px 8px;font-size:11px}.player__debug-value{font-family:var(--font-mono);word-break:break-all;flex:auto}.player__debug-value--url{color:#cbd5e1}.player__debug-log{width:100%;font-family:var(--font-mono);border:1px solid var(--border);background:#00000040;border-radius:6px;flex-direction:column;gap:2px;max-height:160px;padding:4px 6px;font-size:11px;display:flex;overflow:auto}.player__debug-empty{color:var(--text-dim);padding:4px 0;font-style:italic}.player__debug-line{grid-template-columns:80px 160px 1fr;align-items:baseline;gap:8px;display:grid}.player__debug-line[data-kind=error]{color:var(--err)}.player__debug-line[data-kind=warn]{color:var(--warn)}.player__debug-line[data-kind^=LIVE]{color:#93e099}.player__debug-time{color:var(--text-dim)}.player__debug-kind{color:var(--accent)}.player__debug-detail{word-break:break-all;color:var(--text)}.player__mini-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:4px;padding:1px 8px;font-size:11px}.player__mini-btn:hover{background:#ffffff0f}.player__mini-btn--ok{color:var(--ok);background:#6dd58c1f;border-color:#6dd58c80}.player__mini-btn--fail{color:var(--err);background:#ff9a9a1f;border-color:#ff9a9a80}.player__bar{border-top:1px solid var(--border);background:linear-gradient(#14171f,#0b0d12);align-items:center;gap:8px;padding:8px 10px;display:flex}.player__btn{height:32px;color:var(--text);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;padding:0 10px;font-size:13px;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.player__btn:hover{border-color:var(--border);background:#ffffff0f}.player__btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.player__btn--solid{background:var(--accent);border-color:var(--accent);color:#fff}.player__btn--solid:hover{filter:brightness(1.08);background:var(--accent);border-color:var(--accent)}.player__volume{width:110px;accent-color:var(--accent);cursor:pointer}.player__spacer{flex:auto}@media (width<=640px){.player{border-radius:6px}.player__overlay{gap:8px;padding:10px}.player__overlay-card{max-width:100%;padding:14px 16px}.player__overlay-title{font-size:14px}.player__overlay-msg{max-height:100px;font-size:12px}.player__spinner{border-width:2px;width:28px;height:28px}.player__hud{gap:4px;top:6px;left:8px}.player__status,.player__traffic{padding:2px 7px;font-size:11px}.player__debug-toggle{width:26px;height:26px;top:6px;right:8px}.player__debug{max-height:200px;padding:8px 10px;font-size:11px}.player__debug-line{grid-template-columns:64px 120px 1fr;gap:6px;font-size:10px}.player__bar{gap:6px;padding:6px 8px}.player__btn{height:30px;padding:0 8px;font-size:12px}.player__volume{width:70px}}