@keyframes heroFadeIn{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseGreen{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}@keyframes typingBounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.chip{background:var(--trk-surface);border:1px solid var(--trk-border);white-space:nowrap;border-radius:6px;padding:2px 8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85em}.btn{cursor:pointer;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 22px;font-size:14px;font-weight:500;text-decoration:none;transition:opacity .15s,background .15s;display:inline-flex}.btn-primary{background:var(--trk-ink);color:var(--trk-canvas)}.btn-primary:hover{opacity:.9}.btn-secondary{background:var(--trk-surface);border-color:var(--trk-border);color:var(--trk-ink)}.btn-secondary:hover{background:var(--trk-subtle)}.hero-section{z-index:10;text-align:center;flex-direction:column;align-items:center;padding:88px 24px 0;display:flex;position:relative}.hero-box{flex-direction:column;align-items:center;width:100%;max-width:840px;animation:.75s cubic-bezier(.16,1,.3,1) both heroFadeIn;display:flex}.hero-box h1{letter-spacing:-.035em;text-wrap:balance;margin:0;font-size:clamp(38px,6.5vw,68px);font-weight:650;line-height:1.08}.lede{color:var(--trk-muted);max-width:52ch;margin-top:16px;font-size:16px;line-height:1.65}.cta-wrap{flex-direction:column;align-items:center;gap:16px;margin-top:24px;display:flex}.btn-hero{border-radius:14px;min-height:48px;padding:12px 34px;font-size:15px;font-weight:500}.features-scroll-wrapper{width:100%;height:700vh;margin-top:-6px;position:relative}.features-sticky-stage{box-sizing:border-box;justify-content:center;align-items:center;width:100%;height:calc(100dvh - 56px);padding:20px 60px 20px 24px;display:flex;position:sticky;top:56px;overflow:hidden}.features-stage-inner{align-items:center;width:100%;max-width:1000px;height:min(580px,100dvh - 96px);display:flex;position:relative}.feature-slides-track{width:100%;height:100%;position:relative}.feature-slide{background:var(--trk-surface);border:1px solid var(--trk-border);opacity:0;pointer-events:none;visibility:hidden;box-sizing:border-box;border-radius:22px;grid-template-columns:1.05fr 1fr;align-items:center;gap:36px;padding:32px;transition:opacity .4s cubic-bezier(.16,1,.3,1),transform .4s cubic-bezier(.16,1,.3,1);display:grid;position:absolute;inset:0;transform:translateY(20px)scale(.98);box-shadow:0 4px 20px -6px #0000000a}.dark .feature-slide{box-shadow:0 8px 24px -8px #0006}.feature-slide.is-active{opacity:1;pointer-events:auto;visibility:visible;z-index:2;transform:translateY(0)scale(1)}.feature-tag{text-transform:uppercase;letter-spacing:.04em;color:var(--trk-accent);margin-bottom:8px;font-size:11px;font-weight:600}.feature-info h3{letter-spacing:-.02em;font-size:21px;line-height:1.3}.feature-info p{color:var(--trk-muted);margin-top:12px;font-size:15px;line-height:1.65}.feature-bullets{color:var(--trk-muted);flex-direction:column;gap:8px;margin:16px 0 0;padding:0;font-size:13px;list-style:none;display:flex}.feature-bullets li{align-items:baseline;gap:8px;display:flex}.feature-bullets li:before{content:"";background:var(--trk-accent);border-radius:50%;flex:none;width:5px;height:5px}.feature-bullets-nav{z-index:20;flex-direction:column;gap:12px;display:flex;position:absolute;top:50%;right:16px;transform:translateY(-50%)}.nav-bullet{cursor:pointer;color:var(--trk-muted);touch-action:manipulation;background:0 0;border:0;flex-direction:row-reverse;align-items:center;gap:10px;min-height:28px;padding:6px;transition:all .25s;display:flex}.bullet-dot{background:var(--trk-border);border-radius:50%;flex-shrink:0;width:8px;height:8px;transition:all .25s cubic-bezier(.16,1,.3,1)}.bullet-label{opacity:0;white-space:nowrap;pointer-events:none;font-size:11px;font-weight:500;transition:all .2s;transform:translate(6px)}.nav-bullet:hover .bullet-label,.nav-bullet.is-active .bullet-label{opacity:1;transform:translate(0)}.nav-bullet:hover .bullet-dot{background:var(--trk-ink);transform:scale(1.25)}.nav-bullet.is-active .bullet-dot{background:var(--trk-accent);border-radius:9999px;height:16px;transform:scale(1.4);box-shadow:0 0 10px #10b98199}.nav-bullet.is-active .bullet-label{color:var(--trk-ink);font-weight:600}.mobile-slide-counter{display:none}.chat-frame{background:var(--trk-subtle);border:1px solid var(--trk-border);user-select:none;transform-style:preserve-3d;will-change:transform;border-radius:18px;padding:16px 18px 18px;transition:border-color .25s,box-shadow .25s,transform .18s cubic-bezier(.16,1,.3,1);position:relative;overflow:hidden}.chat-frame:hover{border-color:var(--trk-ink);box-shadow:0 16px 36px -10px #00000029}.dark .chat-frame:hover{border-color:var(--trk-border);box-shadow:0 20px 44px -10px #000000b3}.chat-frame:after{content:"";pointer-events:none;border-radius:inherit;background:radial-gradient(circle 260px at var(--mouse-x,50%) var(--mouse-y,50%), #ffffff2e, transparent 70%);opacity:var(--glare-opacity,0);z-index:4;transition:opacity .3s;position:absolute;inset:0}.dark .chat-frame:after{background:radial-gradient(circle 280px at var(--mouse-x,50%) var(--mouse-y,50%), #ffffff1a, transparent 70%)}.three-canvas{pointer-events:none;z-index:0;opacity:.88;width:100%;height:100%;transition:opacity .3s;position:absolute;inset:0}.dark .three-canvas{opacity:.95}.chat-inner{z-index:2;flex-direction:column;gap:9px;width:100%;display:flex;position:relative}.chat-topbar{border-bottom:1px solid var(--trk-border);color:var(--trk-muted);justify-content:space-between;align-items:center;margin-bottom:3px;padding-bottom:7px;font-size:11px;display:flex}.chat-topbar-left{align-items:center;gap:6px;font-weight:500;display:flex}.online-indicator{background:#10b981;border-radius:50%;width:7px;height:7px;animation:2.2s ease-in-out infinite pulseGreen;display:inline-block;box-shadow:0 0 8px #10b981}.chat-replay-btn{border:1px solid var(--trk-border);color:var(--trk-muted);cursor:pointer;background:0 0;border-radius:9999px;align-items:center;gap:4px;padding:3px 8px;font-size:10px;transition:all .2s;display:inline-flex}.chat-replay-btn:hover{background:var(--trk-surface);color:var(--trk-ink);border-color:var(--trk-ink)}.bubble{opacity:0;border-radius:12px;max-width:90%;padding:10px 14px;font-size:13px;line-height:1.5;transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1);transform:translateY(12px)}.bubble.is-shown{opacity:1}.bubble-user{background:var(--trk-ink);color:var(--trk-canvas);border-bottom-right-radius:4px;align-self:flex-end;box-shadow:0 4px 14px #0000001f}.bubble-user.is-shown{transform:translateY(0)}.bubble-bot{background:var(--trk-surface);border:1px solid var(--trk-border);color:var(--trk-ink);border-bottom-left-radius:4px;align-self:flex-start;box-shadow:0 6px 18px #0000000f}.dark .bubble-bot{box-shadow:0 8px 24px #00000059}.bubble-bot.is-shown{transform:translateY(0)}.bubble-bot .bot-header{color:var(--trk-muted);align-items:center;gap:6px;margin-bottom:4px;font-size:11px;font-weight:600;display:flex}.bubble-bot .bot-header svg{width:12px;height:12px}.bubble-bot .meta-list{color:var(--trk-muted);margin-top:6px;font-size:12px;line-height:1.55}.bubble-attachment{background:#ffffff29;border-radius:8px;align-items:center;gap:8px;margin-top:6px;padding:6px 10px;font-size:11px;font-weight:500;display:flex}.dark .bubble-attachment{background:#0000004d}.bubble-time{text-align:right;opacity:.65;font-variant-numeric:tabular-nums;margin-top:4px;font-size:10px;display:block}.bubble-typing{background:var(--trk-surface);border:1px solid var(--trk-border);border-radius:12px 12px 12px 4px;align-self:flex-start;align-items:center;gap:4px;padding:8px 12px;display:inline-flex;box-shadow:0 4px 12px #0000000d}.bubble-typing.is-shown{transform:translateY(0)}.typing-dot{background:var(--trk-muted);border-radius:50%;width:5px;height:5px;animation:1.2s ease-in-out infinite typingBounce}.typing-dot:first-child{animation-delay:0s}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}.floating-badge{background:var(--trk-surface);border:1px solid var(--trk-border);color:var(--trk-ink);opacity:0;border-radius:20px;align-self:flex-end;align-items:center;gap:5px;margin-top:2px;padding:4px 10px;font-size:11px;font-weight:500;transition:opacity .4s cubic-bezier(.16,1,.3,1),transform .4s cubic-bezier(.16,1,.3,1);display:inline-flex;transform:translateY(8px);box-shadow:0 8px 18px -4px #0000001f}.dark .floating-badge{box-shadow:0 10px 22px -4px #0000008c}.floating-badge.is-shown{transform:translateY(0)}.floating-badge svg{color:#10b981}.bottom-cta{z-index:5;text-align:center;background:var(--trk-surface);border:1px solid var(--trk-border);border-radius:24px;max-width:780px;margin:-110px auto 48px;padding:44px 24px 32px;position:relative;box-shadow:0 8px 32px -8px #00000014}.dark .bottom-cta{box-shadow:0 16px 40px -12px #0009}.bottom-cta h3{letter-spacing:-.02em;font-size:24px;line-height:1.25}.bottom-cta p{color:var(--trk-muted);max-width:48ch;margin-top:8px;margin-left:auto;margin-right:auto;font-size:15px;line-height:1.6}.bottom-cta .btn{margin-top:22px}.meta-inside-cta{color:var(--trk-muted);flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 14px;margin-top:24px;font-size:12.5px;display:flex}.meta-inside-cta .sep{color:var(--trk-border);user-select:none}.overlay{z-index:9999;-webkit-backdrop-filter:blur(4px);background:#000000a6;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.overlay[hidden]{display:none}.dialog{background:var(--trk-surface);border:1px solid var(--trk-border);text-align:left;border-radius:16px;width:min(440px,100%);padding:28px 24px 24px;position:relative;box-shadow:0 20px 40px -15px #00000059}.dialog-close{width:32px;height:32px;color:var(--trk-muted);cursor:pointer;background:0 0;border:0;border-radius:8px;place-items:center;display:grid;position:absolute;top:18px;right:18px}.dialog-close:hover{background:var(--trk-subtle);color:var(--trk-ink)}.dialog h2{font-size:18px}.dialog .desc{color:var(--trk-muted);margin-top:8px;font-size:13px;line-height:1.6}.field{margin-top:16px}.field label{margin-bottom:6px;font-size:13px;font-weight:500;display:block}.field input,.field textarea{border:1px solid var(--trk-border);background:var(--trk-canvas);width:100%;color:var(--trk-ink);font:inherit;box-sizing:border-box;border-radius:12px;padding:10px 12px;font-size:14px}.field input{min-height:44px}.field textarea{resize:vertical;min-height:64px;line-height:1.5}.field input:focus,.field textarea:focus{outline:2px solid var(--trk-ink);outline-offset:1px;border-color:var(--trk-ink)}.opt-label{color:var(--trk-muted);font-weight:400}.field .hint{color:var(--trk-muted);margin-top:6px;font-size:12px}.field .error{color:var(--trk-danger);margin-top:6px;font-size:12px}.field label.consent{text-align:left;background:var(--trk-subtle);border:1px solid var(--trk-border);cursor:pointer;border-radius:12px;align-items:flex-start;gap:10px;margin-top:16px;margin-bottom:0;padding:12px;font-weight:400;display:flex}.consent input{width:17px;height:17px;accent-color:var(--trk-ink);cursor:pointer;flex:none;margin:2px 0 0}.consent span{min-width:0;color:var(--trk-muted);flex:auto;font-size:12.5px;line-height:1.55}.consent a{color:var(--trk-ink);text-underline-offset:2px;text-decoration:underline}.consent:focus-within{outline:2px solid var(--trk-ink);outline-offset:1px}.dialog .actions{gap:10px;margin-top:20px;display:flex}.dialog .actions .btn{flex:1}.success{text-align:center;padding:8px 0 0}.success .ok{background:var(--trk-ink);width:44px;height:44px;color:var(--trk-canvas);border-radius:50%;place-items:center;margin:0 auto;display:grid}.success h2{margin-top:14px}.success .desc{color:var(--trk-muted);margin-top:8px;font-size:13px;line-height:1.6}.success .num{background:var(--trk-subtle);border:1px solid var(--trk-border);border-radius:10px;margin-top:12px;padding:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:15px}@media (width<=800px){.hero-section{padding:44px 16px 24px}.hero-box h1{font-size:clamp(28px,7.5vw,40px);line-height:1.15}.hero-box .lede{margin-top:12px;font-size:13.5px}.cta-wrap{margin-top:18px}.features-scroll-wrapper{margin-top:14px}.features-sticky-stage{justify-content:center;align-items:center;height:calc(100dvh - 56px);padding:8px 24px 8px 12px;display:flex;top:56px}.features-stage-inner{align-items:center;width:100%;height:calc(100dvh - 76px);max-height:560px;display:flex;position:relative}.feature-slides-track{width:100%;height:100%;position:relative}.feature-slide{box-sizing:border-box;border-radius:18px;flex-direction:column;grid-template-columns:1fr;justify-content:center;gap:8px;padding:14px 12px;display:flex;position:absolute;inset:0;overflow:hidden}.feature-info{flex-direction:column;gap:2px;display:flex}.feature-tag{margin-bottom:2px;font-size:10px}.feature-info h3{margin:0;font-size:clamp(14.5px,4vw,17px);line-height:1.25}.feature-info p,.feature-bullets{display:none}.chat-frame{border-radius:14px;flex-direction:column;flex:1;justify-content:center;padding:10px 12px;display:flex}.chat-inner{gap:6px}.chat-topbar{margin-bottom:2px;padding-bottom:4px;font-size:10px}.bubble{border-radius:10px;padding:6px 10px;font-size:11px;line-height:1.35}.bubble-attachment{padding:3px 6px;font-size:10px}.floating-badge{padding:2px 7px;font-size:9.5px}.feature-bullets-nav{gap:6px;right:4px}.nav-bullet{min-height:20px;padding:3px 2px}.bullet-dot{width:5px;height:5px}.nav-bullet.is-active .bullet-dot{width:5px;height:12px}.bullet-label{display:none!important}.mobile-slide-counter{color:var(--trk-accent);margin-bottom:2px;font-size:11px;font-weight:600;display:block}.bottom-cta{border-radius:18px;margin:20px 14px 40px;padding:28px 16px 20px}.bottom-cta h3{font-size:20px}.bottom-cta p{font-size:13.5px}.meta-inside-cta{flex-direction:column;gap:6px;margin-top:18px;font-size:11.5px}.meta-inside-cta .sep{display:none}.dialog .actions{flex-direction:column}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.feature-slide{transition:none!important}.bubble,.floating-badge{opacity:1!important;transform:none!important}.chat-frame{transform:none!important}}