:root{--bg-primary: #0a0a14;--bg-secondary: #1a1a2e;--bg-card: #252540;--color-primary: #4a9eff;--color-success: #4ade80;--color-danger: #f87171;--color-warning: #fbbf24;--text-primary: #ffffff;--text-secondary: #d1d5db;--text-muted: #9ca3af;--border-color: #374151}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}html,body,#root{width:100%;height:100vh;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif;background:var(--bg-primary);color:var(--text-primary)}.page{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;padding:20px;padding-top:max(20px,env(safe-area-inset-top));padding-bottom:max(20px,env(safe-area-inset-bottom))}.header{text-align:center;margin-top:30px}.header-icon{width:100px;height:100px;margin-bottom:16px}.header-title{font-size:32px;font-weight:700;color:var(--color-primary);margin-bottom:8px}.header-subtitle{font-size:20px;color:var(--text-secondary)}.main-content{flex:1;display:flex;flex-direction:column;justify-content:center;gap:20px;margin:30px 0}.btn{width:100%;padding:24px 20px;border:none;border-radius:16px;font-size:24px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:12px;transition:all .15s;touch-action:manipulation}.btn:active{transform:scale(.97);filter:brightness(.9)}.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 4px 12px #4a9eff4d}.btn-success{background:var(--color-success);color:#052e16;box-shadow:0 4px 12px #4ade804d}.btn:disabled{opacity:.5;cursor:not-allowed}.device-list{max-height:50vh;overflow-y:auto;background:var(--bg-secondary);border-radius:16px;padding:12px}.device-item{padding:20px 16px;background:var(--bg-card);border-radius:12px;margin-bottom:12px;cursor:pointer;transition:all .15s;display:flex;align-items:center;gap:16px;border:3px solid transparent}.device-item:last-child{margin-bottom:0}.device-item:active{background:var(--bg-primary)}.device-item.selected{background:var(--bg-card);border-color:var(--color-primary);box-shadow:0 0 0 2px #4a9eff33}.device-icon{width:40px;height:40px;flex-shrink:0}.device-info{flex:1}.device-name{font-size:24px;font-weight:700;margin-bottom:4px}.device-ip{font-size:20px;color:var(--text-muted);font-family:monospace}.device-check{width:32px;height:32px;flex-shrink:0;color:var(--color-primary)}.manual-section{margin-top:20px}.input-label{font-size:20px;color:var(--text-secondary);margin-bottom:12px;text-align:center}.ip-input-group{display:flex;align-items:center;justify-content:center;gap:8px;width:100%}.ip-segment{width:64px;height:64px;padding:0;background:var(--bg-secondary);border:2px solid var(--border-color);border-radius:12px;color:var(--text-primary);font-size:28px;font-weight:700;outline:none;text-align:center;font-family:monospace;-moz-appearance:textfield}.ip-segment::-webkit-outer-spin-button,.ip-segment::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.ip-segment:focus{border-color:var(--color-primary)}.ip-segment.invalid{border-color:var(--color-danger)}.ip-dot{font-size:28px;color:var(--text-muted);font-weight:700;-webkit-user-select:none;user-select:none}.footer-tip{text-align:center;font-size:18px;color:var(--text-muted);margin-top:16px}.control-page{justify-content:space-between;gap:16px}.status-bar{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--bg-secondary);border-radius:12px;flex-shrink:0}.status-indicator{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600}.status-dot{width:14px;height:14px;border-radius:50%;background:var(--color-success);box-shadow:0 0 8px #4ade8099;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.btn-disconnect{background:var(--color-danger);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-size:18px;font-weight:700;cursor:pointer}.now-playing{background:linear-gradient(135deg,#1e3a5f,#162d50);border-radius:16px;padding:24px 20px;text-align:center;flex-shrink:0;border:1px solid rgba(100,160,255,.2)}.now-playing-name{font-size:42px;font-weight:700;color:var(--color-primary)}.dpad-container{position:relative;width:240px;height:240px;margin:0 auto;flex-shrink:0;border-radius:50%;background:#1f2937;box-shadow:0 6px 16px #0009,inset 0 2px 4px #ffffff14;display:flex;align-items:center;justify-content:center}.dpad-half{position:absolute;left:0;width:240px;height:110px;border:none;background:#6b7280;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .12s;touch-action:manipulation}.dpad-up{top:0;border-top-left-radius:120px;border-top-right-radius:120px;align-items:flex-end;padding-bottom:36px}.dpad-up:active{background:#4a9eff}.dpad-down{bottom:0;border-bottom-left-radius:120px;border-bottom-right-radius:120px;align-items:flex-start;padding-top:36px}.dpad-down:active{background:#4a9eff}.dpad-half svg{width:36px;height:36px;fill:currentColor}.dpad-divider{position:absolute;left:0;top:50%;transform:translateY(-50%);width:240px;height:8px;background:transparent;pointer-events:none;z-index:2}.dpad-center{position:relative;z-index:3;width:96px;height:96px;border-radius:50%;border:3px solid #4a9eff;background:#4a9eff;color:#fff;font-size:19px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .12s;touch-action:manipulation;box-shadow:0 0 12px #4a9effb3,0 0 0 4px #1f2937}.dpad-center:active{background:#2563eb;transform:scale(.94)}.volume-row{display:flex;gap:32px;justify-content:center;align-items:center;flex-shrink:0}.vol-btn{width:72px;height:72px;border-radius:50%;border:2px solid var(--color-primary);background:var(--bg-card);color:var(--color-primary);cursor:pointer;transition:all .12s;touch-action:manipulation;box-shadow:0 4px 8px #0006;display:flex;align-items:center;justify-content:center;position:relative}.vol-btn:active{background:var(--color-primary);color:#fff;transform:scale(.92)}.vol-icon{width:36px;height:36px;stroke:currentColor;stroke-width:4;stroke-linecap:round;fill:none}.mute-btn{width:160px;height:64px;border-radius:12px;border:3px solid var(--color-warning);background:transparent;color:var(--color-warning);font-size:22px;font-weight:700;cursor:pointer;transition:all .1s;touch-action:manipulation;display:flex;align-items:center;justify-content:center}.mute-btn.muted{background:var(--color-warning);color:var(--bg-primary)}.mute-btn svg{width:24px;height:24px;fill:currentColor;margin-right:4px}.channel-list-btn{width:100%;padding:20px;border-radius:14px;border:2px solid var(--color-primary);background:var(--bg-secondary);color:var(--color-primary);font-size:22px;font-weight:700;cursor:pointer;transition:all .1s;touch-action:manipulation;display:flex;align-items:center;justify-content:center;gap:10px;flex-shrink:0}.channel-list-btn:active{background:var(--color-primary);color:#fff;transform:scale(.98)}.channel-list-btn svg{width:28px;height:28px;fill:currentColor}.shutdown-row{display:flex;gap:12px;flex-shrink:0}.btn-shutdown{width:100%;padding:18px;border-radius:14px;border:2px solid var(--color-danger);background:var(--bg-secondary);color:var(--color-danger);font-size:20px;font-weight:700;cursor:pointer;transition:all .15s;touch-action:manipulation;display:flex;align-items:center;justify-content:center;gap:10px}.btn-shutdown:active{background:var(--color-danger);color:#fff;transform:scale(.98)}.btn-shutdown svg{width:24px;height:24px;fill:currentColor}.drawer-mask{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;opacity:0;pointer-events:none;transition:opacity .3s;z-index:100}.drawer-mask.show{opacity:1;pointer-events:auto}.drawer{position:fixed;bottom:0;left:0;width:100%;height:90vh;background:var(--bg-secondary);border-top-left-radius:24px;border-top-right-radius:24px;transform:translateY(100%);transition:transform .3s ease-out;z-index:101;display:flex;flex-direction:column;box-shadow:0 -4px 24px #00000080}.drawer.show{transform:translateY(0)}.drawer-header{padding:20px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.drawer-title{font-size:22px;font-weight:700;color:var(--text-primary)}.drawer-content{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:8px}.drawer-ch-item{padding:26px 20px;background:var(--bg-card);border:2px solid transparent;border-radius:12px;cursor:pointer;transition:all .1s;touch-action:manipulation;display:flex;align-items:center;gap:16px}.drawer-ch-item:active{transform:scale(.98)}.drawer-ch-item.active{background:var(--color-primary);border-color:#fff;box-shadow:0 0 12px #4a9eff80}.drawer-ch-num{font-size:18px;color:var(--text-muted);width:36px;flex-shrink:0;text-align:center;font-weight:600}.drawer-ch-item.active .drawer-ch-num{color:#ffffffd9}.drawer-ch-name{font-size:22px;font-weight:600;color:var(--text-primary);line-height:1.2;flex:1}.drawer-ch-item.active .drawer-ch-name{color:#fff}.drawer-ch-check{width:24px;height:24px;flex-shrink:0;opacity:0}.drawer-ch-item.active .drawer-ch-check{opacity:1}.drawer-footer{padding:16px 20px;border-top:1px solid var(--border-color);flex-shrink:0}.drawer-close-btn{width:100%;padding:18px;border-radius:14px;border:none;background:var(--color-danger);color:#fff;font-size:22px;font-weight:700;cursor:pointer;transition:all .1s;touch-action:manipulation}.drawer-close-btn:active{transform:scale(.98);filter:brightness(.9)}.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.8);background:#000000f2;color:#fff;padding:20px 32px;border-radius:16px;font-size:24px;font-weight:600;opacity:0;transition:all .3s;pointer-events:none;z-index:200;border:2px solid var(--color-primary);text-align:center;max-width:80%}.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}.toast.success{border-color:var(--color-success)}.toast.error{border-color:var(--color-danger)}.spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}