:root{--aura-bg: #02040a;--aura-fg: #dfe9ff;--aura-dim: #7c8db5;--aura-accent: #46c8ff;--aura-accent2: #b06bff;--aura-panel: rgba(8, 14, 30, .78);--aura-border: rgba(120, 160, 255, .22);--aura-font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:var(--aura-bg);color:var(--aura-fg);font-family:var(--aura-font);-webkit-font-smoothing:antialiased}#app,#app canvas{position:fixed;inset:0;display:block}#app canvas{touch-action:none}.hidden{display:none!important}.overlay{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 40%,#0a1432e0,#02040af5);backdrop-filter:blur(6px)}.intro-card{max-width:640px;padding:48px 40px;text-align:center}.intro-title{font-size:88px;font-weight:200;letter-spacing:.42em;margin-left:.42em;background:linear-gradient(120deg,#6fd8ff,#b586ff 55%,#ffb46f);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 60px rgba(90,140,255,.35)}.intro-sub{margin-top:8px;font-size:15px;letter-spacing:.5em;margin-left:.5em;color:var(--aura-dim)}.intro-desc{margin:28px 0;font-size:15px;line-height:2;color:var(--aura-fg);opacity:.85}.intro-buttons{display:flex;flex-direction:column;gap:12px;align-items:center}.btn{font-family:inherit;font-size:15px;letter-spacing:.12em;padding:13px 34px;border-radius:999px;cursor:pointer;transition:all .25s ease;border:1px solid var(--aura-border);background:transparent;color:var(--aura-fg)}.btn-primary{border-color:#5abeff99;background:linear-gradient(120deg,#2878ff38,#9650ff38);box-shadow:0 0 24px #468cff40}.btn-primary:hover{box-shadow:0 0 42px #5aa0ff80;transform:translateY(-1px)}.btn-ghost{color:var(--aura-dim)}.btn-ghost:hover{color:var(--aura-fg);border-color:#96b4ff80}.intro-hint{margin-top:26px;font-size:12px;line-height:1.9;color:var(--aura-dim);opacity:.8}#hud{position:fixed;inset:0;z-index:30;pointer-events:none;font-size:12px}.hud-top-left{position:absolute;top:16px;left:16px;display:flex;flex-direction:column;gap:8px}.hud-status-row{display:flex;gap:10px;align-items:center;padding:8px 14px;border-radius:10px;background:var(--aura-panel);border:1px solid var(--aura-border)}.hud-dot{display:inline-flex;align-items:center;gap:5px;color:var(--aura-dim)}.hud-dot i{width:7px;height:7px;border-radius:50%;background:#44506e;box-shadow:none;font-style:normal}.hud-dot.on{color:var(--aura-fg)}.hud-dot.on i{background:#3cf0a8;box-shadow:0 0 8px #3cf0a8}.hud-dot.err i{background:#ff5d73;box-shadow:0 0 8px #ff5d73}.hud-gesture{padding:8px 14px;border-radius:10px;background:var(--aura-panel);border:1px solid var(--aura-border);color:var(--aura-accent);letter-spacing:.1em;min-width:150px}.hud-gesture .fps{float:right;color:var(--aura-dim)}.hud-cam-preview{border-radius:10px;border:1px solid var(--aura-border);overflow:hidden;width:160px;height:120px;background:#00000080}.hud-cam-preview canvas{width:100%;height:100%;display:block}.hud-bottom{position:absolute;left:50%;bottom:26px;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;width:min(720px,90vw)}.hud-subtitle{min-height:30px;max-width:100%;padding:6px 18px;border-radius:8px;font-size:15px;letter-spacing:.06em;text-align:center;color:var(--aura-fg);background:#0408148c;border:1px solid transparent;transition:all .3s}.hud-subtitle.interim{color:var(--aura-dim);font-style:italic}.hud-subtitle.ai{color:#ffd9a0;border-color:#ffc87840}.hud-spectrum{width:220px;height:36px;opacity:.85}.hud-bpm{font-size:11px;letter-spacing:.12em;color:var(--aura-dim);min-height:14px}button:focus-visible,input:focus-visible{outline:2px solid rgba(110,200,255,.7);outline-offset:2px}.hud-top-right{position:absolute;top:16px;right:16px;display:flex;gap:8px;pointer-events:auto}.hud-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--aura-border);background:var(--aura-panel);color:var(--aura-dim);font-size:17px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center}.hud-btn:hover{color:var(--aura-fg);border-color:#8cb4ff8c}.hud-thinking{position:absolute;right:16px;top:66px;width:240px;padding:12px 14px;border-radius:10px;background:var(--aura-panel);border:1px solid var(--aura-border);font-family:SF Mono,Menlo,monospace;font-size:11px;line-height:1.8;color:#9fe8c8;white-space:pre-wrap}.guide-card{max-width:760px;width:92vw;max-height:88vh;display:flex;flex-direction:column;padding:30px 34px 22px;border-radius:18px;background:var(--aura-panel);border:1px solid var(--aura-border)}.guide-scroll{flex:1 1 auto;min-height:0;overflow-y:auto;mask-image:linear-gradient(to bottom,#000 calc(100% - 26px),transparent 100%);-webkit-mask-image:linear-gradient(to bottom,#000 calc(100% - 26px),transparent 100%);padding-bottom:8px}.guide-scroll::-webkit-scrollbar{width:8px}.guide-scroll::-webkit-scrollbar-thumb{background:#78a0ff59;border-radius:999px}.guide-scroll::-webkit-scrollbar-track{background:#78a0ff12;border-radius:999px}.guide-footer{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:8px;padding-top:16px;border-top:1px solid rgba(120,160,255,.14)}.guide-esc-hint{font-size:11px;color:var(--aura-dim);opacity:.7}.guide-card h2{flex:0 0 auto;font-weight:300;letter-spacing:.3em;color:var(--aura-accent);margin-bottom:20px;text-align:center}.guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}.guide-item{padding:14px 16px;border-radius:12px;border:1px solid rgba(120,160,255,.14);background:#101a3480}.guide-item .g-icon{font-size:26px}.guide-item .g-name{margin:6px 0 4px;color:var(--aura-fg);font-size:14px;letter-spacing:.08em}.guide-item .g-desc{color:var(--aura-dim);font-size:12px;line-height:1.7}.guide-item.primary{border-color:#6ec8ff80;background:linear-gradient(120deg,#2878ff2e,#9650ff29)}.guide-item.muted{opacity:.5}.guide-item .g-tag{display:inline-block;margin-top:8px;padding:2px 8px;border-radius:999px;font-size:10.5px;letter-spacing:.06em;color:#ffd9a0;background:#ffc8781f;border:1px solid rgba(255,200,120,.28)}.guide-voice{margin-top:18px;padding-top:14px;border-top:1px dashed rgba(120,160,255,.18);color:var(--aura-dim);font-size:12.5px;line-height:2;text-align:center}.guide-voice b{color:#ffd9a0;font-weight:500;margin:0 2px}.guide-close{margin:22px auto 0;display:block}#settings{position:fixed;top:0;right:0;bottom:0;width:320px;z-index:50;padding:22px;overflow-y:auto;background:#060a18eb;border-left:1px solid var(--aura-border);backdrop-filter:blur(10px)}#settings h3{font-weight:300;letter-spacing:.25em;color:var(--aura-accent)}.set-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.set-close{width:32px;height:32px;border-radius:8px;border:1px solid var(--aura-border);background:transparent;color:var(--aura-dim);font-size:14px;cursor:pointer;transition:all .2s}.set-close:hover{color:var(--aura-fg);border-color:#8cb4ff8c}.set-group{margin-bottom:20px}.set-label{display:block;font-size:12px;color:var(--aura-dim);letter-spacing:.1em;margin-bottom:8px}.preset-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}.preset-btn{padding:9px 6px;font-size:12.5px;border-radius:8px;border:1px solid var(--aura-border);background:#101a3480;color:var(--aura-dim);cursor:pointer;transition:all .2s;font-family:inherit}.preset-btn.active{color:#fff;border-color:#6ec8ffcc;background:linear-gradient(120deg,#2878ff47,#9650ff47)}.set-range{width:100%;accent-color:var(--aura-accent)}.set-value{float:right;color:var(--aura-fg)}.set-toggle-row{display:flex;justify-content:space-between;align-items:center;padding:7px 0;font-size:13px;color:var(--aura-fg)}.set-toggle-row input{accent-color:var(--aura-accent);transform:scale(1.15);cursor:pointer}.set-input{width:100%;padding:8px 10px;font-size:12px;font-family:inherit;border-radius:8px;border:1px solid var(--aura-border);background:#0a1022cc;color:var(--aura-fg);outline:none}.set-btn{width:100%;margin-top:8px;padding:9px;font-size:13px;border-radius:8px;border:1px solid var(--aura-border);background:#101a3480;color:var(--aura-fg);cursor:pointer;font-family:inherit;transition:all .2s}.set-btn:hover{border-color:#6ec8ffb3}.set-hint{font-size:11px;line-height:1.8;color:var(--aura-dim);opacity:.75;margin-top:6px}.set-hint.warn{color:#ffb2b2;opacity:1}.backend-status{font-size:11px;margin-top:6px;color:var(--aura-dim)}.backend-status.ok{color:#3cf0a8}.backend-status.err{color:#ff5d73}@media (max-width: 720px){.intro-title{font-size:56px}.hud-cam-preview{width:110px;height:82px}#settings{width:100vw;border-left:none}.hud-thinking{display:none}.hud-top-left{top:66px;left:12px;right:12px}.hud-status-row{flex-wrap:wrap;row-gap:4px}.hud-gesture{align-self:flex-start}.hud-top-right{top:12px;right:12px}.hud-btn{width:44px;height:44px;font-size:19px}.guide-card{padding:22px 18px 16px}.guide-grid{grid-template-columns:1fr}.hud-bottom{bottom:calc(18px + env(safe-area-inset-bottom,0px))}}@media (pointer: coarse){.hud-btn,.set-close{width:44px;height:44px}}