:root{color-scheme:dark;--bg:#121417;--surface:#191d21;--line:#333a40;--text:#eef2f3;--muted:#a0a9af;--accent:#39c59b;font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}img{max-width:100%;display:block}button{cursor:pointer}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-weight:500}button:disabled{opacity:.6;cursor:wait}a,button{transition:color .15s,background .15s,border-color .15s}a:hover{color:var(--accent)}:is(a,button,input,summary):focus-visible{outline:2px solid var(--accent);outline-offset:5px}.shell{width:min(1380px,calc(100% - 96px));margin-inline:auto}.skip-link{position:fixed;top:10px;left:12px;padding:10px 18px;z-index:100;background:var(--text);color:var(--bg);transform:translateY(-150%)}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}.header-inner{min-height:82px;display:flex;align-items:center;gap:40px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand strong{font-size:18px;font-weight:600;letter-spacing:-.035em}.brand-studio{font-weight:400;color:var(--muted)}.brand-mark{width:26px;height:26px;border:1.5px solid var(--accent);border-radius:5px;position:relative}.brand-mark:after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:#4aa6ff;right:3px;top:3px}.site-nav{display:flex;gap:28px;margin-left:auto;font-size:14px;color:var(--muted)}.header-controls{display:flex;align-items:center;gap:22px}.language-toggle{padding:8px 0;border:0;background:none;color:var(--muted);font-size:14px}.language-toggle:hover{color:var(--text)}.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);width:42px;height:42px;padding:10px}.menu-toggle span{display:block;height:1px;background:currentColor;margin:5px 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 24px;border:1px solid #647079;border-radius:3px;font-size:15px;font-weight:500;line-height:1.5}.button:hover{border-color:var(--text);background:#252c33;color:var(--text)}.button-small{min-height:38px;padding:8px 16px;font-size:14px}.button-primary{background:var(--text);border-color:var(--text);color:var(--bg)}.button-primary:hover{background:var(--accent);border-color:var(--accent);color:var(--bg)}.text-link{font-size:15px;border-bottom:1px solid #657078;padding-block:3px}
.hero{padding-top:60px}.eyebrow{font-family:"SFMono-Regular",Consolas,"Microsoft YaHei",monospace;letter-spacing:.065em;font-size:13px;font-weight:400;color:var(--muted)}.eyebrow>span:first-child{color:var(--accent)}.hero>.eyebrow{display:flex;gap:14px;flex-wrap:wrap}.hero-intro{display:grid;grid-template-columns:1.15fr 1fr;gap:80px;align-items:end;margin:32px 0 52px}h1{font-size:clamp(38px,4.5vw,68px);letter-spacing:-.045em;line-height:1.22}.title-secondary{color:var(--muted)}.hero-copy{max-width:510px;justify-self:end}.hero-copy>p:first-child{font-size:17px;line-height:1.9;color:#c4cbd0}.hero-actions{display:flex;align-items:center;gap:26px;margin-top:28px}.entry-note{color:var(--muted);font-size:13px;margin-top:15px}.product-figure{margin:0}.product-figure img{width:100%;height:auto;border:1px solid var(--line);border-radius:3px}.product-figure figcaption{display:flex;justify-content:space-between;gap:16px;padding:16px 0;font-size:12px;letter-spacing:.06em;color:var(--muted);font-family:Consolas,"Microsoft YaHei",monospace}
.section{padding-block:100px}.section-heading{display:grid;grid-template-columns:1fr 2.4fr;gap:48px;align-items:start;margin-bottom:55px}.section-heading .eyebrow{padding-top:9px}h2{font-size:clamp(28px,3vw,42px);letter-spacing:-.025em;line-height:1.35;text-wrap:balance}.feature-list{border-top:1px solid var(--line)}.feature-row{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:48px;padding-block:34px;border-bottom:1px solid var(--line)}.feature-label{font-family:Consolas,monospace;font-size:13px;color:var(--muted);padding-top:5px}.feature-label>span{color:var(--accent);margin-right:18px}.feature-row h3{font-size:22px;line-height:1.5;letter-spacing:-.025em}.feature-row p{font-size:16px;color:#bdc6cc;line-height:1.8}.feature-row .feature-meta{font-size:13px;color:var(--muted);margin-top:17px}
.workflow{background:var(--surface);border-block:1px solid var(--line)}.workflow-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:36px}.workflow-list li{border-top:1px solid #525e65;padding-top:22px}.step-number{font:14px Consolas,monospace;color:var(--accent)}.workflow-list h3{font-size:22px;margin:28px 0 10px}.workflow-list p{font-size:16px;color:var(--muted)}.workflow-note{margin-top:38px;font-size:14px;color:var(--muted)}.scenario-list{display:grid;grid-template-columns:repeat(3,1fr);gap:48px}.scenario-list article{padding-top:25px;border-top:1px solid var(--line)}.scenario-list h3{font-size:24px;margin-bottom:16px}.scenario-list p{color:var(--muted);max-width:34ch}.start{border-top:1px solid var(--line)}.start-shell{display:grid;grid-template-columns:1.15fr 1fr;gap:100px;align-items:start}.start-copy h2{margin:20px 0}.start-copy>p:not(.eyebrow){color:var(--muted);max-width:50ch;margin-bottom:30px}.contact-link{display:block;font-size:14px;color:var(--muted);margin-top:20px}.account-panel{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.account-panel summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:25px;cursor:pointer;font-size:16px;list-style:none}.account-panel summary::-webkit-details-marker{display:none}.account-panel summary>span:last-child{font-size:24px;font-weight:300;color:var(--muted)}.account-panel[open] summary>span:last-child{transform:rotate(45deg)}.signup-card{padding:0 0 28px}.signup-card-heading{display:flex;justify-content:space-between;gap:20px;margin-bottom:14px;font-size:16px}.signup-card-heading small{font-size:13px;color:var(--muted)}.guest-entry{display:inline-block;margin-bottom:24px;color:var(--muted)}#signupForm{display:grid;gap:10px}#signupForm label{font-size:14px}input{width:100%;min-width:0;min-height:46px;padding:10px 12px;border:1px solid #4a535a;border-radius:3px;background:var(--surface);color:var(--text);font-size:16px}.password-label{display:flex;justify-content:space-between;gap:12px;margin-top:12px}.password-label>span{color:var(--muted);font-size:13px}.password-field{display:flex;border:1px solid #4a535a;border-radius:3px;background:var(--surface)}.password-field input{border:0;background:transparent}.password-field button{background:transparent;border:0;padding:0 14px;color:var(--muted);font-size:14px;white-space:nowrap}.signup-submit{margin-top:15px;width:100%}.form-message{font-size:14px;line-height:1.65;overflow-wrap:anywhere}.form-message.error{color:#ffadad}.form-message.success{color:var(--accent)}.existing-account{margin-top:15px;color:var(--muted)}.account-ready{display:grid;gap:18px}.account-ready p{overflow-wrap:anywhere;color:var(--muted)}.account-check{color:var(--accent)}.account-ready strong{font-size:22px}
.site-footer{padding-block:40px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:30px}.footer-wordmark{font-size:28px;letter-spacing:-.04em;font-weight:500}.site-footer>div{display:flex;align-items:center;gap:30px;color:var(--muted);font-size:13px}.site-footer .text-link{font-size:13px}.menu-open{overflow:hidden}
@media (max-width:1100px){.shell{width:calc(100% - 56px)}.header-inner{gap:24px}.header-controls{gap:16px}.site-nav{gap:18px}.hero-intro{gap:40px}.section-heading,.feature-row{gap:30px}.start-shell{gap:55px}}
@media (max-width:960px){.header-inner{min-height:72px}.header-controls{margin-left:auto}.brand-studio{display:none}.menu-toggle{display:block}.site-nav{display:none;position:absolute;left:0;right:0;top:72px;flex-direction:column;padding:22px 28px;background:var(--surface);border-bottom:1px solid var(--line);gap:0}.site-nav.open{display:flex}.site-nav a{padding:12px 0}.hero-intro{grid-template-columns:1fr;gap:26px}.hero-copy{justify-self:start;max-width:660px}h1{font-size:54px}.hero{padding-top:42px}.section-heading{grid-template-columns:1fr;gap:18px;margin-bottom:36px}.feature-row{grid-template-columns:.7fr 1fr;gap:12px 30px}.feature-label{grid-column:1/-1}.feature-row h3{font-size:23px}.start-shell{grid-template-columns:1fr;gap:45px}.start-copy>p:not(.eyebrow){max-width:65ch}.workflow-list{grid-template-columns:repeat(2,1fr)}.scenario-list{gap:24px}.site-footer{flex-direction:column}}
@media (max-width:760px){.shell{width:calc(100% - 36px)}.header-inner{gap:12px}.header-controls{gap:12px}.brand{gap:9px}.brand strong{font-size:16px}.button-small{font-size:13px;padding:8px 10px}.language-toggle{font-size:13px}.hero-intro{margin-block:26px 34px}h1{font-size:clamp(34px,7.4vw,52px)}.hero-copy>p:first-child{font-size:16px}.hero-actions{gap:20px}.section{padding-block:65px}.feature-row{grid-template-columns:1fr;gap:15px;padding-block:28px}.feature-label{grid-column:auto}.product-figure figcaption{font-size:12px;flex-wrap:wrap;gap:4px}.scenario-list{grid-template-columns:1fr;gap:28px}.workflow-list{gap:28px 24px}.workflow-list h3{font-size:20px;margin-top:18px}.site-footer>div{gap:16px;flex-wrap:wrap}.eyebrow{font-size:12px}.hero>.eyebrow{gap:8px}.site-nav{padding-inline:18px}}
@media (max-width:420px){.brand-mark{display:none}.brand strong{font-size:15px}.header-controls{gap:9px}.menu-toggle{width:34px;height:38px;padding:7px}.button-small{padding:7px 9px}.header-inner{gap:8px}.hero-actions{flex-wrap:wrap}.workflow-list{grid-template-columns:1fr}.entry-note{font-size:12px}}
.system-roles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;margin-top:52px;padding-top:32px;border-top:1px solid var(--line)}.system-roles h3{font-size:23px;margin:12px 0}.system-roles article>p:last-child{font-size:16px;color:#bdc6cc;line-height:1.8;max-width:60ch}.workflow-note{max-width:110ch}.scenario-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:42px 60px}.scenario-list p{max-width:56ch}.contact-link{overflow-wrap:anywhere;font-size:14px}.hero-intro>*{min-width:0}.feature-label{font-size:13px}.feature-row .feature-meta{font-size:14px}.entry-note{font-size:14px}
@media (max-width:760px){.system-roles,.scenario-list{grid-template-columns:1fr;gap:30px}.system-roles{margin-top:38px}.system-roles h3{font-size:22px}}
.showreel-figure{max-width:1100px;margin-inline:auto}.showreel-frame{position:relative;aspect-ratio:16/9;background:#080a0d;border:1px solid var(--line);border-radius:3px;overflow:hidden}.showreel-frame video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain}.editor-figure{margin-bottom:36px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Full-viewport introduction: footage extends behind the navigation and copy. */
:root{--page-gutter:clamp(28px,6.25vw,160px)}
.shell{width:calc(100% - var(--page-gutter)*2);max-width:1920px}
.site-header{position:fixed;inset:0 0 auto;background:transparent;border-bottom:1px solid #ffffff26;transition:background .2s,border-color .2s}
.site-header.scrolled{background:rgba(18,20,23,.96);border-color:var(--line)}
.header-inner{width:calc(100% - clamp(40px,8vw,200px));max-width:none;min-height:88px}
.site-header .site-nav,.site-header .language-toggle,.site-header .brand-studio{color:#e1e7e9}
.site-header .button-small{border-color:#ffffff70;background:#10191c30}
.hero{position:relative;isolation:isolate;display:flex;flex-direction:column;justify-content:center;min-height:max(760px,100svh);padding:156px 0 152px;background:#0c171b}
.hero-content{position:relative;z-index:2;pointer-events:none}
.hero-content a{pointer-events:auto}
.hero-content>.eyebrow{display:flex;gap:12px;flex-wrap:wrap;align-items:center;color:#e1eeec;font-size:12px;letter-spacing:.14em}
.hero-content>.eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-intro{display:block;margin:32px 0 0;max-width:800px}
.hero h1{font-size:clamp(58px,5.65vw,108px);line-height:1.16;letter-spacing:-.045em;font-weight:400}
.hero .title-secondary{color:#d3e8df}
.hero-copy{max-width:560px;margin-top:30px;justify-self:start}
.hero-copy>p:first-child{font-size:17px;line-height:1.9;color:#e1e8e9;text-wrap:pretty}
.hero-actions{margin-top:32px;gap:30px}
.hero .button-primary{min-height:54px;padding-inline:26px;background:#cde8d9;border-color:#cde8d9;color:#12251e;border-radius:0;gap:32px}
.hero .button-primary:after{content:"↗";font-size:22px;line-height:1}
.hero .button-primary:hover{background:#e3f4e9;border-color:#e3f4e9}
.hero .text-link{color:#eef4f3;border-color:#b2c4c0}
.hero .entry-note{font-size:12px;color:#c0cdcf;margin-top:18px}
.hero .showreel-figure{position:absolute;inset:0;max-width:none;width:100%;height:100%;margin:0;z-index:-2;overflow:hidden}
.hero .showreel-frame{position:absolute;inset:0;aspect-ratio:auto;border:0;border-radius:0;background:#0c171b}
.hero .showreel-frame video{position:relative;pointer-events:none;width:100%;height:100%;aspect-ratio:auto;object-fit:cover;object-position:center}
.hero .showreel-poster{position:absolute;inset:0}
.hero .showreel-poster img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0}
.hero:after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(5,15,20,.86) 0%,rgba(5,15,20,.64) 38%,rgba(5,15,20,.12) 76%),linear-gradient(180deg,rgba(5,13,18,.45),transparent 28%,transparent 65%,rgba(5,13,18,.84))}
.hero-bottom{position:absolute;bottom:34px;left:0;right:0;display:flex;align-items:center;gap:32px;z-index:2}
.scroll-cue{display:inline-flex;align-items:center;gap:28px;font-size:13px;color:#eef4f3;min-height:44px}
.scroll-cue>span:last-child{font-size:23px;font-weight:300}
.hero-project{margin-left:auto;text-align:left}
.hero-project>span{font:10px Consolas,"Microsoft YaHei",monospace;letter-spacing:.15em;color:#cde8d9}
.hero-project p{font-size:13px;color:#edf2f3;margin-top:5px}

.section{padding-block:clamp(76px,7vw,140px)}
.editor-figure{max-width:1600px;margin-inline:auto;margin-bottom:48px}
@media (min-width:1920px){.hero-content,.hero-bottom{max-width:1680px}}
@media (max-width:960px){
  .header-inner{min-height:72px}
  .hero{min-height:max(780px,100svh);padding-block:132px 156px}
  .hero h1{font-size:clamp(52px,8vw,78px)}
  .hero-intro{margin-top:28px}
  .site-nav{top:72px;background:#121b20}
  .hero:after{background:linear-gradient(90deg,#051014d9,#05101466),linear-gradient(180deg,#050d1266,transparent 40%,#050d12b3)}
}
@media (max-width:600px){
  :root{--page-gutter:24px}
  .header-inner{width:calc(100% - 32px);gap:8px}
  .header-controls{gap:10px}
  .hero{min-height:max(740px,100svh);padding:126px 0 168px}
  .hero-content>.eyebrow{font-size:10px;gap:8px;letter-spacing:.08em;max-width:290px}
  .hero h1{font-size:clamp(40px,9vw,54px);line-height:1.22}
  .hero-copy{margin-top:24px}
  .hero-copy>p:first-child{font-size:15px;line-height:1.85}
  .hero-actions{gap:18px;flex-wrap:wrap;margin-top:28px}
  .hero .button-primary{padding-inline:20px;gap:20px;font-size:14px}
  .hero .text-link{font-size:14px}
  .hero .entry-note{font-size:11px}
  .hero-bottom{bottom:24px;gap:14px;flex-wrap:wrap;justify-content:space-between}
  .hero-project{order:3;width:100%;margin-left:0;border-top:1px solid #ffffff30;padding-top:12px;display:flex;justify-content:space-between;align-items:center;gap:12px}
  .hero-project>span{font-size:8px;letter-spacing:.05em}
  .hero-project p{font-size:10px;margin:0}
  .scroll-cue{font-size:12px;gap:18px}
  
}
@media (max-height:650px) and (min-width:961px){.hero{min-height:680px;padding-top:126px;padding-bottom:128px}.hero h1{font-size:64px}.hero-copy{margin-top:22px}.hero-intro{margin-top:24px}}

/* The portrait edit keeps the entire shot in its upper panel (y=224..630/720).
   Reserve that space before the copy; fit the media to width without cropping. */
@media (max-width:960px) and (orientation:portrait){
  .hero{padding-top:calc(87.5vw + 36px);padding-bottom:168px}
  .hero .showreel-frame video,.hero .showreel-poster img{width:100%;height:auto;aspect-ratio:9/16;object-fit:contain;object-position:top}
  .hero .showreel-frame{background:linear-gradient(180deg,#0c171b,#091319)}
  .hero:after{background:linear-gradient(180deg,rgba(5,13,18,.28) 0,transparent 100px,transparent calc(87.5vw - 12px),rgba(5,13,18,.82) calc(87.5vw + 36px),#091319 calc(177.78vw - 1px))}
}