:root{--bg: #06080f;--chord: #ff5fa2;--melody: #27e0c8;--accent: #ffc24b;--ink: #eef2ff;--dim: #9aa6c7;--glass: rgba(12, 17, 30, .6);--glass-border: rgba(255, 255, 255, .1);--glow-chord: 0 0 18px rgba(255, 95, 162, .55);--glow-melody: 0 0 18px rgba(39, 224, 200, .55);--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-ui);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;overflow:hidden}.app{position:relative;width:100vw;height:100vh;height:100dvh;overflow:hidden;background:var(--bg)}.stage{position:absolute;inset:0}.cam-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1);background:#0a0f1d}.scene{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.vignette{position:absolute;inset:0;pointer-events:none;background:radial-gradient(75% 75% at 50% 42%,#0a0f1d00 55%,#000000d9)}.ui-topbar{position:absolute;top:0;left:0;right:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;background:linear-gradient(180deg,#06080fd9,#06080f00)}.ui-hint{position:absolute;bottom:0;left:0;right:0;z-index:10;display:flex;justify-content:center;gap:26px;flex-wrap:wrap;padding:16px 20px 22px;background:linear-gradient(0deg,#06080fe6,#06080f00);font-size:13.5px;color:#cdd5ee;align-items:center}.ui-hint>span{text-shadow:0 1px 3px rgba(0,0,0,.7);line-height:1.4}.ui-overlay{position:absolute;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;pointer-events:none}.ui-overlay.is-visible{pointer-events:auto;background:#06080fc7;backdrop-filter:blur(6px);animation:overlay-fade .32s ease both}@keyframes overlay-fade{0%{opacity:0;backdrop-filter:blur(0px)}to{opacity:1;backdrop-filter:blur(6px)}}.brand{display:flex;align-items:center;gap:10px}.brand .nm{font-size:17px;font-weight:800;letter-spacing:-.01em}.brand .nm span{color:var(--melody)}.live{display:flex;align-items:center;gap:7px;background:#ff4d6d26;border:1px solid rgba(255,77,109,.4);color:#ff9eb4;font-size:11px;font-weight:800;letter-spacing:.1em;padding:5px 10px;border-radius:999px}.live .dot{width:8px;height:8px;border-radius:50%;background:#ff4d6d;box-shadow:0 0 8px #ff4d6d;animation:live-blink 1.4s infinite}@keyframes live-blink{50%{opacity:.3}}.live.is-idle{background:#9aa6c71f;border-color:#9aa6c74d;color:var(--dim)}.live.is-idle .dot{background:var(--dim);box-shadow:none;animation:none}.controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}.pill{display:flex;align-items:center;gap:8px;background:var(--glass);border:1px solid var(--glass-border);padding:11px 18px;min-height:44px;border-radius:999px;font-size:14px;backdrop-filter:blur(8px);white-space:nowrap}.pill-control{transition:border-color .18s ease,background .18s ease}.pill-control:hover{border-color:#ffffff47;background:#121828b3}.pill-control:focus-within{border-color:#fff6}.pill .k{color:var(--dim);font-size:12.5px}.pill .v{font-weight:700;min-width:26px;text-align:center}.pill .chev{color:var(--dim);font-size:10px;pointer-events:none}.pill.groove.on{border-color:#27e0c880;background:#27e0c81f}.pill-select{appearance:none;-webkit-appearance:none;background:transparent;border:0;color:var(--ink);font:inherit;font-weight:700;font-size:14px;padding:2px 4px;cursor:pointer;outline:none}.pill-select option{background:#0c111e;color:var(--ink)}.tg{position:relative;width:34px;height:19px;flex:0 0 auto;cursor:pointer}.tg-input{position:absolute;inset:0;margin:0;opacity:0;cursor:pointer}.tg-knob{position:absolute;inset:0;border-radius:999px;background:#9aa6c759;transition:background .15s ease}.tg-knob:after{content:"";position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;background:#cdd5ee;transition:transform .15s ease,background .15s ease}.tg-input:checked+.tg-knob{background:#27e0c8e6}.tg-input:checked+.tg-knob:after{transform:translate(15px);background:#04201c}.tg-input:focus-visible+.tg-knob{outline:2px solid var(--melody);outline-offset:2px}.bpm-range{appearance:none;-webkit-appearance:none;width:84px;height:4px;border-radius:999px;background:#ffffff2e;outline:none;cursor:pointer}.bpm-range::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--melody);box-shadow:0 0 8px #27e0c8b3;cursor:pointer}.bpm-range::-moz-range-thumb{width:14px;height:14px;border:0;border-radius:50%;background:var(--melody);box-shadow:0 0 8px #27e0c8b3;cursor:pointer}.pill.sens{position:relative;cursor:pointer;user-select:none}.pill.sens.open{border-color:#fff6}.sens-pop{position:absolute;top:calc(100% + 8px);right:0;width:300px;max-width:calc(100vw - 32px);display:none;flex-direction:column;gap:16px;padding:16px;background:#0c111ef0;border:1px solid var(--glass-border);border-radius:16px;backdrop-filter:blur(14px);box-shadow:0 18px 48px #00000080;z-index:50;cursor:default;white-space:normal}.pill.sens.open .sens-pop{display:flex}.sens-sec{display:flex;flex-direction:column;gap:9px}.sens-head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}.sens-title{font-weight:700;font-size:13px}.sens-hint{color:var(--dim);font-size:11px}.sens-chips{display:flex;gap:6px}.sens-chip{flex:1 1 0;padding:8px 0;border-radius:999px;border:1px solid var(--glass-border);background:#ffffff0a;color:var(--ink);font:inherit;font-size:12.5px;font-weight:600;cursor:pointer;transition:border-color .15s ease,background .15s ease,color .15s ease}.sens-chip:hover{border-color:#ffffff4d}.sens-chip.on{border-color:#27e0c899;background:#27e0c829;color:#d6fff7}.sens-sliderrow{display:flex;align-items:center;gap:10px}.sens-range{appearance:none;-webkit-appearance:none;flex:1;height:4px;border-radius:999px;background:#ffffff2e;outline:none;cursor:pointer}.sens-range::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--melody);box-shadow:0 0 8px #27e0c8b3;cursor:pointer}.sens-range::-moz-range-thumb{width:14px;height:14px;border:0;border-radius:50%;background:var(--melody);box-shadow:0 0 8px #27e0c8b3;cursor:pointer}.sens-read{min-width:68px;text-align:right;font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums}.ui-hint b{color:#fff}.hint-status{display:inline-flex;align-items:center;gap:7px;background:var(--glass);border:1px solid var(--glass-border);padding:5px 12px;border-radius:999px;font-weight:700;backdrop-filter:blur(8px)}.hint-status{transition:border-color .25s ease,background .25s ease}.hint-status-dot{width:8px;height:8px;border-radius:50%;background:var(--dim);transition:background .25s ease,box-shadow .25s ease}.hint-status.s-no-hand{border-color:#ffc24b73;background:#ffc24b1a}.hint-status.s-no-hand .hint-status-dot{box-shadow:0 0 8px var(--accent);animation:live-blink 1.3s infinite}.hint-status.s-live{border-color:#27e0c873;background:#27e0c81a}.hint-status.s-live .hint-status-dot{background:var(--melody);box-shadow:0 0 8px var(--melody)}.hint-status.s-loading .hint-status-dot{background:var(--accent);box-shadow:0 0 8px var(--accent);animation:live-blink 1.1s infinite}.hint-status.s-no-hand .hint-status-dot{background:var(--accent)}.hint-status.s-error .hint-status-dot{background:#ff4d6d;box-shadow:0 0 8px #ff4d6d}.card{position:relative;width:min(440px,calc(100vw - 48px));padding:34px 32px 26px;border-radius:22px;background:#0c111ed1;border:1px solid var(--glass-border);backdrop-filter:blur(14px);box-shadow:0 20px 60px #0000008c;text-align:center;overflow:hidden;animation:card-rise .42s cubic-bezier(.2,.9,.25,1) both}@keyframes card-rise{0%{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.card-glow{animation:glow-drift 6s ease-in-out infinite alternate}@keyframes glow-drift{0%{transform:translate(-6%);opacity:.85}to{transform:translate(6%);opacity:1}}.card-glow{position:absolute;inset:-40% -40% auto;height:200px;background:radial-gradient(50% 100% at 50% 0%,rgba(255,95,162,.35),rgba(39,224,200,.18) 45%,transparent 75%);pointer-events:none}.card-title{position:relative;font-size:30px;font-weight:800;letter-spacing:-.01em;margin-bottom:8px}.card-title span{color:var(--melody)}.card-lead{position:relative;color:var(--dim);font-size:14px;line-height:1.5;margin-bottom:18px}.card-icon{font-size:34px;margin-bottom:8px}.steps{position:relative;list-style:none;text-align:left;display:grid;gap:8px;margin:0 auto 22px;max-width:300px}.steps li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#cdd5ee}.steps li b{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:#27e0c829;border:1px solid rgba(39,224,200,.45);color:var(--melody);font-size:12px;font-weight:800}.btn-primary{position:relative;display:inline-block;width:100%;padding:13px 20px;border:0;border-radius:14px;font-family:inherit;font-size:16px;font-weight:800;letter-spacing:.01em;color:#06080f;cursor:pointer;background:linear-gradient(135deg,var(--chord),var(--accent) 55%,var(--melody));box-shadow:0 8px 24px #ff5fa259,0 0 18px #27e0c840;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease}.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 12px 30px #ff5fa273,0 0 24px #27e0c859}.btn-primary:active{transform:translateY(0)}.btn-primary:focus-visible{outline:2px solid #fff;outline-offset:3px}.privacy{position:relative;display:flex;align-items:center;justify-content:center;gap:7px;margin-top:16px;font-size:11.5px;line-height:1.4;color:var(--dim)}.privacy b{color:#cdd5ee}.rotate-gate{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:max(32px,env(safe-area-inset-top)) 32px max(32px,env(safe-area-inset-bottom));text-align:center;background:radial-gradient(80% 60% at 50% 36%,rgba(255,95,162,.16),transparent 70%),radial-gradient(75% 55% at 50% 100%,rgba(39,224,200,.14),transparent 72%),var(--bg)}@media (orientation: portrait){.rotate-gate{display:flex}}.rotate-card{max-width:340px;display:flex;flex-direction:column;align-items:center;gap:14px}.rotate-icon{font-size:66px;line-height:1;filter:drop-shadow(0 8px 20px rgba(39,224,200,.4));transform-origin:50% 50%;animation:rotate-hint 2.6s ease-in-out infinite}@keyframes rotate-hint{0%,30%{transform:rotate(0)}56%,90%{transform:rotate(90deg)}to{transform:rotate(0)}}.rotate-title{font-size:24px;font-weight:800;letter-spacing:-.01em}.rotate-title span{color:var(--melody)}.rotate-lead{color:var(--dim);font-size:14.5px;line-height:1.6}@media (max-height: 480px){.ui-topbar{padding:max(7px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) 7px max(12px,env(safe-area-inset-left));gap:8px}.controls{gap:7px}.pill{padding:6px 12px;min-height:34px;font-size:12.5px;gap:6px}.bpm-range{width:60px}.brand .nm{font-size:15px}.live{padding:4px 8px;font-size:10px}.ui-hint{padding:8px max(12px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));gap:8px 14px;font-size:11.5px}}@media (prefers-reduced-motion: reduce){.live .dot,.hint-status-dot,.card-glow,.card,.rotate-icon,.ui-overlay.is-visible{animation:none!important}.btn-primary,.pill-control,.hint-status{transition:none!important}}