@font-face{font-family:'FourHz Showcase Han';src:url('/assets/fonts/noto-serif-sc-showcase.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
/* Cap the viewport-driven whitespace; taller active content can still grow naturally. */
.hc-showcase{display:flex;flex-direction:column;justify-content:flex-start;min-height:min(calc(100svh - 80px),820px);padding:100px 0 48px;scroll-margin-top:80px;--hc-blue:#4055ff;--serif:Newsreader,'FourHz Showcase Han','Songti SC',serif}
.hc-track{flex-shrink:0;display:flex;align-items:flex-start;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain;isolation:isolate;clip-path:inset(0 1px 0 0)}
.hc-track.is-moving{scroll-snap-type:none}
.hc-track::-webkit-scrollbar,.hc-tabs::-webkit-scrollbar{display:none}
.hc-slide{position:relative;flex:0 0 100%;min-width:0;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:start;gap:clamp(32px,4vw,64px);min-height:482px;padding:0 0 72px;scroll-snap-align:start;scroll-snap-stop:always}
.hc-slide:not(.is-experiencing){cursor:pointer}
.hc-copy{cursor:inherit}
.hc-copy :is(button,a){cursor:pointer}
.hc-copy button:disabled{cursor:default}
.hc-copy,.hc-art{min-width:0}
.hc-eyebrow{font-size:10px;letter-spacing:1.2px;line-height:1.6;color:var(--muted)}
.hc-copy h1{font:400 clamp(40px,4.167vw,60px)/1.13 var(--serif);letter-spacing:-1.4px;margin:26px 0 0;min-height:0}
.hc-copy h1 em{color:var(--hc-blue);font-style:normal;display:inline-block;margin-top:9px}
html:lang(zh-CN) .hc-copy h1{font-family:'FourHz Showcase Han','Songti SC',serif;font-size:clamp(38px,3.8vw,54px);line-height:1.42;letter-spacing:0;min-height:0;margin-top:24px}
html:lang(zh-CN) .hc-copy h1 em{margin-top:0}
html:lang(zh-CN) .hc-description{margin-top:40px}
.hc-description{font-size:14px;line-height:1.95;color:var(--muted);white-space:pre-line;margin:44px 0 0;max-width:500px}
.hc-actions{display:flex;align-items:center;gap:27px;margin-top:28px}
.hc-try{position:relative;z-index:2;min-width:156px;height:46px;gap:10px!important;background:var(--hc-blue)!important;border-color:var(--hc-blue)!important}
.hc-try:hover{background:#3044e8!important}
.hc-try .pg-icon{width:18px;height:18px}
.hc-try>span{font-size:13px;line-height:1.4}
.hc-try:disabled{opacity:.48;cursor:default}
.hc-try .trial-stop-mark{width:10px;height:10px;border-radius:2px;background:currentColor}
.hc-detect-link{min-width:156px;height:46px;background:var(--hc-blue)!important;border-color:var(--hc-blue)!important;font-size:13px}
.hc-detect-link:hover{background:#3044e8!important}
.hc-coming-soon{font-size:11px;color:#858994;line-height:1.6;white-space:nowrap}
.hc-about{display:inline-flex;align-items:center;min-height:36px;padding:5px 0;border:0;background:transparent;color:#747984;font-size:11px;font-weight:400;line-height:1.5;text-decoration:none;white-space:nowrap;transition:color .16s}
.hc-about:hover{color:var(--hc-blue);text-decoration:underline;text-underline-offset:4px}
.hc-upload{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 0;border:0;background:transparent;box-shadow:none;color:var(--ink);font-size:13px;cursor:pointer}
.hc-upload .pg-icon{width:18px;height:18px}
.hc-upload:hover:not(:disabled){background:transparent;color:var(--hc-blue);box-shadow:none}
.hc-upload:disabled{opacity:.45;cursor:default}
.hc-upload:focus-visible{outline:2px solid #8298f4;outline-offset:4px;border-radius:2px}
.hc-about:focus-visible{outline:2px solid #8298f4;outline-offset:3px}
.hc-note{font-size:11px;line-height:1.8;color:#85868d;margin-top:12px;min-height:20px}
.hc-art{width:100%;padding-top:0}
.hc-art .hs-scene{max-width:none}
.hc-art :is(.hs-focus,.hs-dialogue,.hs-emotion,.hs-description){max-width:min(100%,640px)}
.hc-art .hs-transcription-copy{left:10%;right:10%}
.hc-art .hs-scene-canvas{height:330px}
.hc-art .hs-scene-standard{padding-top:122px}
.hc-art .hs-scene-standard .hs-scene-canvas{height:auto;aspect-ratio:500 / 168}
.hc-art .hs-scene-standard .hs-scene-caption{margin-top:33px}
.hc-caption{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:9px;line-height:1.6;color:#85868d;margin-top:24px}
.hc-caption>span:first-child{letter-spacing:1.1px}
.hc-navigation{flex-shrink:0;display:flex;align-items:center;padding:0;border-block:1px solid color-mix(in srgb,var(--line) 55%,transparent);background:transparent}
.hc-tabs{display:flex;flex:1;min-width:0;gap:0;padding:0;overflow-x:auto;scroll-padding:3px;scrollbar-width:none;position:relative;overscroll-behavior-x:contain}
.hc-tab-indicator{position:absolute;left:0;top:0;bottom:0;border-radius:0;background:radial-gradient(ellipse at 50% 0%,#ffffff99,transparent 68%),repeating-linear-gradient(0deg,#ffffff0f 0,#ffffff0f 1px,#8f9cba04 1px,#8f9cba04 3px),linear-gradient(90deg,#95a5cf14,#e4ebff29 50%,#95a5cf14);border-inline:1px solid #9aafd330;box-shadow:inset 1px 0 #ffffff99,inset -1px 0 #ffffff99,inset 0 1px #ffffffe6,inset 0 -1px #8295bc1f,0 1px 6px #7a8eb312;backdrop-filter:blur(3px) saturate(110%);-webkit-backdrop-filter:blur(3px) saturate(110%);opacity:0;pointer-events:none;transition:transform .36s cubic-bezier(.4,0,.2,1),width .36s cubic-bezier(.4,0,.2,1),opacity .12s ease}
.hc-tab-indicator.is-gliding{opacity:1}
.hc-tabs>button{position:relative;flex:1 0 auto;display:flex;align-items:center;justify-content:center;gap:8px;min-height:70px;margin:0;padding:15px 8px;border:0;border-radius:3px;box-shadow:none;background:transparent;color:#777b86;font-size:12px;line-height:1.4;white-space:nowrap;transition:color .15s}
.hc-tabs>button:first-of-type{justify-content:flex-start;padding-left:16px}
.hc-tabs>button:not(:last-child)::after{content:'';position:absolute;right:0;top:0;bottom:0;width:1px;background:color-mix(in srgb,var(--line) 55%,transparent);pointer-events:none}
.hc-tabs>button[aria-selected=true]{color:var(--hc-blue)}
.hc-tabs>button:hover:not(:disabled){background:transparent;color:var(--ink)}
.hc-tabs>button[aria-selected=true]:hover:not(:disabled){color:var(--hc-blue)}
.hc-tabs>button:focus-visible{outline-offset:-2px}
.hc-number{flex:none;font-size:9px;letter-spacing:.4px;font-variant-numeric:tabular-nums;color:#9296a0}
.hc-sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
/* The home sections are separated by space and surfaces, not stacked rules. */
.hc-showcase~:is(.fh-difference,.fh-build,.fh-philosophy){border:0}
.hc-showcase~.fh-difference{padding:70px 0 80px}
.hc-showcase~.fh-difference .fh-section-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:70px;row-gap:22px;align-items:end}
.hc-showcase~.fh-difference .fh-section-heading>div{display:block}
.hc-showcase~.fh-difference .fh-section-heading>p{max-width:none;white-space:pre-line;line-height:1.85}
.hc-showcase~.fh-difference .fh-product-grid>article{border:0}
.hc-showcase~.fh-build{padding-block:72px}
.hc-showcase~.fh-philosophy{padding:96px 0 110px}
.hc-showcase.is-locked .hc-track{overflow-x:hidden}
.hc-tabs>button:disabled{cursor:default;opacity:.45}
.hc-tabs>button[aria-selected=true]:disabled{opacity:1}
.hc-slide[aria-hidden=true] .hc-live-panel{display:none}
.hc-live-panel{background:#ffffff60;border:1px solid var(--line);border-radius:8px;min-height:330px;position:relative;z-index:2;overflow:hidden}
.hc-live-head{min-height:57px;padding:12px 16px 12px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;color:var(--ink)}
.hc-close{flex:none;display:grid;place-items:center;width:32px;height:32px;min-height:32px;padding:6px;border:0;border-radius:4px;background:transparent;color:#85868d;cursor:pointer}
.hc-close svg{display:block;width:18px;height:18px}
.hc-close:hover:not(:disabled){background:#f0f1f5;color:var(--ink)}
.hc-close:disabled{opacity:.35;cursor:default}
.hc-close:focus-visible{outline-offset:1px}
.hc-live-root{padding:0;min-width:0}
.hc-live-root .pg-layout,.hc-live-root .pg-content{display:block;margin:0;max-width:100%}
.hc-live-root .pg-card{border:0;border-radius:0;box-shadow:none;background:transparent}
.hc-live-root .pg-studio{padding:0;margin:0;min-height:0}
.hc-live-root .pg-studio-header,.hc-live-root .pg-studio-footer,.hc-live-root .pg-bottom-note,.hc-live-root .pg-capability-tabs{display:none}
.hc-live-root .pg-connect-surface{min-height:240px;padding:22px;font-size:12px}
.hc-live-root .pg-message{font-size:11px;margin:14px 18px;padding:10px 12px;line-height:1.8}
.hc-live-root .pg-audio-form{padding:20px}
.hc-live-root .pg-capture-controls,.hc-live-root .trial-controls{padding:14px 20px;gap:14px;flex-wrap:wrap}
.hc-live-root .pg-audio-form .pg-capture-controls{padding:0}
.hc-live-root .pg-live-hint,.hc-live-root .pg-capture-hint{font-size:10px}
.hc-live-root .pg-capture-controls .pg-direct-upload{margin-left:auto}
.hc-live-root .pg-live{padding:0}
.hc-live-root .trial-box{border:0;background:transparent;border-radius:0}
.hc-live-root .trial-meta,.hc-live-root .trial-preview-note{display:none}
.hc-live-root .trial-results{border:0;border-radius:0;box-shadow:none;background:transparent;margin:0}
.hc-live-root .trial-result-header{padding:12px 20px;background:transparent;min-height:45px}
.hc-live-root .trial-result-header h2{font-size:11px}
.hc-live-root .trial-result-actions button{font-size:10px}
.hc-live-root .trial-transcript{padding:22px 20px;min-height:200px;max-height:310px;overflow:auto}
.hc-live-root .trial-paragraph{font-size:15px;line-height:1.85}
.hc-live-root .trial-empty{font-size:12px;line-height:1.8}
.hc-live-root .trial-editor{padding:16px 20px}
.hc-live-root .trial-editor textarea{font-size:15px;min-height:200px}
.hc-live-root .trial-result-footer{padding:12px 20px;font-size:9px}
.hc-live-root .pg-audio-idle{min-height:170px;padding:30px 0;font-size:12px}
.hc-live-root .pg-audio-idle p{font-size:12px}
.hc-live-root .pg-analysis-result{padding:16px 20px;border-top:1px solid var(--line)}
.hc-live-root .pg-analysis-result h2{font-size:12px}
.hc-live-root .pg-result-text{font:400 24px/1.8 var(--serif);color:var(--hc-blue);padding:14px 0}
.hc-live-root .pg-emotion-scores{font-size:11px}
.hc-live-root .pg-speaker{font-size:14px;line-height:1.8}
.hc-live-root .pg-json-heading{font-size:10px;min-height:40px}
.hc-live-root .pg-json{max-height:180px;font-size:10px}
.hc-live-root .pg-settings{margin:0;border-top:1px solid var(--line);border-radius:0}
.hc-live-root .pg-settings>summary{padding:14px 20px;font-size:10px}
.hc-live-root .pg-settings-summary{display:none}
.hc-live-root .pg-settings-body{padding:16px 20px}
.hc-live-root .pg-settings-body .pg-asr-option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.hc-live-root .pg-settings-body .pg-tabs{flex-wrap:wrap}
.hc-live-root .pg-settings-body .pg-tabs>button{font-size:9px;padding:8px}
.hc-live-root .pg-target-select,.hc-live-root .pg-voice-select{padding:17px 20px;margin:0;border-bottom:1px solid var(--line);gap:10px}
.hc-live-root .pg-target-select label{font-size:11px}
.hc-live-root .pg-target-select select{min-width:110px;font-size:11px}
.hc-live-root .pg-target-select button,.hc-live-root .pg-voice-select button{font-size:10px;padding:8px 10px}
.hc-live-root .pg-hint{font-size:10px;line-height:1.8}
.hc-live-root .pg-voice-name{font-size:11px}.hc-live-root .pg-voice-name input{font-size:12px}
.hc-live-root .pg-reading-prompt{padding:16px;font-size:14px;line-height:1.9}
.hc-live-root .pg-upload-secondary{font-size:11px;margin-top:14px}
.hc-live-root .pg-voice-tabs{padding:13px 20px;border-bottom:1px solid var(--line)}
.hc-live-root .pg-voice-tabs button{font-size:10px}
.hc-live-root .pg-target-empty{padding:38px 24px;min-height:180px;font-size:13px;line-height:1.9;color:var(--muted)}
.hc-live-root .pg-embedded-note{font-size:9px;line-height:1.7;color:var(--muted);border-top:1px solid var(--line);padding:11px 20px;margin:0}
.hc-live-root .pg-embedded-enrollment{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;font-size:11px;border-bottom:1px solid var(--line)}
.hc-live-root .pg-embedded-enrollment button{font-size:10px;border:0;padding:5px 0;background:transparent}
.hc-live-root .pg-embedded-wave{padding:6px 20px 14px;border-bottom:1px solid var(--line)}
.hc-live-root .pg-embedded-wave .recording-meter.prominent canvas{height:76px;width:100%;margin-top:5px}
.hc-live-root .pg-embedded-wave .recording-meter strong{font-size:10px}
.hc-live-root .pg-audio-form .pg-embedded-wave{padding-inline:0;margin-top:18px}
.hc-live-root.has-external-controls :is([data-trial=start],[data-trial=stop],[data-pg=capture-start],[data-pg=capture-stop]){display:none}
@media(max-width:1100px){.hc-slide{gap:30px}.hc-tabs>button{padding-inline:6px;gap:7px;font-size:11px}}
@media(max-width:900px){.hc-showcase~.fh-difference .fh-section-heading{grid-template-columns:minmax(0,1fr);gap:22px}}
@media(max-width:800px){
 .hc-showcase{min-height:calc(100svh - 68px);padding:42px 0 36px;scroll-margin-top:68px}
 .hc-slide{grid-template-columns:1fr;align-content:start;gap:48px;padding:0 0 44px;min-height:0}
 .hc-copy h1{font-size:clamp(40px,7vw,54px);margin-top:26px;line-height:1.13}
 html:lang(zh-CN) .hc-copy h1{font-size:clamp(32px,8.6vw,48px);line-height:1.42;margin-top:24px}
 .hc-description,html:lang(zh-CN) .hc-description{font-size:13px;line-height:1.95;margin-top:30px;max-width:100%}
 .hc-actions{margin-top:28px;gap:27px}.hc-about{font-size:11px}.hc-note{font-size:10px;margin-top:12px}
 .hc-art{padding-top:0}.hc-art .hs-scene-standard{padding-top:0}.hc-art .hs-scene-standard .hs-scene-caption{margin-top:22px}
 .hc-tabs{flex-basis:100%;scroll-padding:3px}.hc-tabs>button{flex:0 0 auto;min-height:56px;padding:10px 18px;font-size:11px;gap:7px}.hc-tabs .fh-recommendation{font-size:8px}
 .hc-showcase~.fh-difference{padding:48px 0}.hc-showcase~.fh-difference .fh-product-grid{grid-template-columns:1fr}
 .hc-showcase~.fh-build{grid-template-columns:1fr;gap:36px;padding-block:48px}.hc-showcase~.fh-philosophy{padding:54px 0 64px}
}
@media(prefers-reduced-motion:reduce){.hc-showcase *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.hc-art .hs-scene-standard .hs-rhythm{height:100%;aspect-ratio:auto}
@media(min-width:801px){
 /* Center the waveform on the shared 330px scene, accounting for its 122px canvas offset. */
 .hc-art .hs-scene-standard .hs-rhythm{top:43px;bottom:auto;transform:translateY(-50%)}
 .hc-navigation{margin-top:12px}
}