/* C动画 · Creative studio. Public presentation, separate from the application. */
:root{color-scheme:dark;--paper:#0b0d11;--surface:#15181e;--line:#292d35;--ink:#f5f5f7;--muted:#a1a4ad;--accent:#a5b6ff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.7 Inter,"Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,a{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button{font:inherit}h1,h2,h3,p{margin:0}.site-header{height:86px;padding:0 5vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff0f;position:relative;z-index:2}.site-logo{display:flex;align-items:center;gap:18px}.site-logo img{width:123px;height:47px;object-fit:contain}.site-logo span{font-size:11px;letter-spacing:2px;color:#8d919b;border-left:1px solid var(--line);padding-left:18px}.site-nav{display:flex;align-items:center;gap:33px;font-size:13px}.site-nav>a:not(.site-button){color:#aeb1bb}.site-nav>a:hover{color:white}.site-button{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:12px 23px;min-height:46px;border:1px solid #454a56;border-radius:7px;font-size:13px;font-weight:600;transition:background .2s,transform .2s,border-color .2s}.site-button:hover{background:#ffffff0e;transform:translateY(-2px);border-color:#858b9b}.site-button.primary{background:var(--accent);border-color:var(--accent);color:#151a32}.site-button.primary:hover{background:#bdc8ff}.site-button b{font-size:17px;font-weight:400}.hero{max-width:1600px;margin:0 auto;padding:68px 5vw 0;text-align:center}.eyebrow{display:flex;align-items:center;justify-content:center;gap:9px;color:#b8c2e8;font-size:11px;letter-spacing:3px;text-transform:uppercase}.eyebrow:before{content:"";width:5px;height:5px;background:var(--accent);border-radius:50%}.hero h1{font-size:clamp(40px,4.3vw,70px);line-height:1.23;letter-spacing:-2px;font-weight:650;margin:21px 0 19px}.hero h1 span{color:var(--accent)}.hero-intro{max-width:560px;margin:auto;color:var(--muted);font-size:14px;line-height:1.95}.hero-actions{display:flex;justify-content:center;gap:12px;margin:28px 0 45px}.hero-stage{position:relative;display:grid;grid-template-columns:1.55fr 1fr 1fr;gap:10px;height:clamp(280px,30vw,455px);text-align:left}.hero-frame{position:relative;overflow:hidden;background:#191e26;border-radius:9px}.hero-frame img{width:100%;height:100%;object-fit:cover;transition:transform 1s ease;filter:saturate(.8)}.hero-frame:hover img{transform:scale(1.04)}.hero-frame:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 48%,#090b12d9)}.hero-frame:first-child img{object-position:center}.frame-info{position:absolute;bottom:21px;left:22px;right:20px;z-index:1;display:flex;align-items:flex-end;justify-content:space-between}.frame-info small{display:block;color:#d1d3da;font-size:9px;letter-spacing:2px;margin-bottom:6px}.frame-info strong{font-size:19px;font-weight:500;letter-spacing:2px}.frame-info>span{border:1px solid #ffffff4a;border-radius:20px;padding:3px 10px;font-size:10px;background:#11172255}.frame-corner{position:absolute;z-index:1;top:17px;left:19px;color:#e7e8e9c4;font:10px/1.4 monospace;letter-spacing:2px}.stage-caption{display:flex;justify-content:space-between;padding:15px 0;color:#747985;font-size:10px;letter-spacing:1px}.stage-caption span:first-child{display:flex;align-items:center;gap:10px}.stage-caption i{height:1px;width:25px;background:#656c81}.possibilities{border-bottom:1px solid var(--line);max-width:1440px;margin:30px auto 0;padding:26px 5vw;display:flex;justify-content:space-between;align-items:center;gap:25px}.possibilities>span{font-size:11px;color:#737985;letter-spacing:1px}.possibilities>div{display:flex;gap:clamp(22px,4vw,64px);font-size:14px;color:#b9bcc5}.section{max-width:1440px;margin:0 auto;padding:100px 5vw}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:38px}.section-number{font-size:10px;color:var(--accent);letter-spacing:2px;display:block;margin-bottom:14px}.section h2{font-size:clamp(27px,3vw,40px);font-weight:550;line-height:1.4;letter-spacing:-1px}.section-heading>p{color:var(--muted);font-size:13px;max-width:335px}.workflow-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:10px;overflow:hidden}.workflow-grid article{padding:28px 25px 30px;background:#111419;border-right:1px solid var(--line)}.workflow-grid article:last-child{border:0}.step-label{display:flex;justify-content:space-between;align-items:center;color:#646a76;font-size:10px;letter-spacing:2px;margin-bottom:38px}.step-label b{font-size:18px;font-weight:400;color:#8c94a8}.workflow-grid h3{font-size:17px;font-weight:550;margin-bottom:12px}.workflow-grid p{font-size:12px;line-height:1.9;color:#9297a3}.workflow-grid small{display:block;color:#b6c3f5;font-size:10px;letter-spacing:1px;margin-top:25px}.feature-section{border-top:1px solid var(--line);padding-top:80px}.feature-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;align-items:center}.contact-sheet{padding:13px;background:#171b23;border:1px solid #333946;border-radius:11px;transform:rotate(-2deg)}.sheet-top{display:flex;justify-content:space-between;color:#969fb0;font:9px monospace;letter-spacing:1px;padding:5px 2px 15px}.sheet-images{display:grid;grid-template-columns:1fr 1fr;gap:8px}.sheet-images img{width:100%;height:145px;object-fit:cover;filter:saturate(.65)}.sheet-images img:nth-child(2){object-position:70% 30%;transform:scaleX(-1)}.sheet-images img:nth-child(3){object-position:center 65%}.sheet-note{padding:15px 3px 3px;font-size:10px;color:#9aa3b3}.feature-copy h2{margin-bottom:24px}.feature-list{display:grid;gap:23px}.feature-list div{display:grid;grid-template-columns:27px 1fr;gap:14px}.feature-list i{font-style:normal;color:var(--accent);font-size:11px;padding-top:2px}.feature-list h3{font-size:14px;font-weight:500}.feature-list p{font-size:12px;color:#989da8;line-height:1.9;margin-top:6px}.faq{display:grid;grid-template-columns:.8fr 1fr;gap:90px;border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:22px 0}.faq details:first-child{padding-top:0}.faq summary{cursor:pointer;font-size:14px;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary:after{content:"＋";color:#7e8595}.faq details[open] summary:after{content:"－"}.faq details p{color:var(--muted);font-size:12px;line-height:1.9;margin-top:16px}.closing{text-align:center;border-top:1px solid var(--line);padding:76px 20px 85px}.closing p{font-size:10px;letter-spacing:3px;color:var(--accent);margin-bottom:18px}.closing h2{font-size:clamp(28px,3.6vw,47px);font-weight:550;letter-spacing:-1px;margin-bottom:28px}.site-footer{border-top:1px solid var(--line);padding:27px 5vw;display:flex;justify-content:space-between;align-items:center;gap:22px;color:#7a808d;font-size:11px}.site-footer strong{color:#c8cbd3;font-weight:500;margin-right:20px}.site-footer nav{display:flex;gap:24px}.site-footer a:hover{color:white}.skip-link{position:fixed;top:-100px;left:20px;background:#fff;color:#000;padding:12px;z-index:10}.skip-link:focus{top:10px}@media(min-width:1800px){.hero{padding-top:85px}.site-header,.site-footer{padding-inline:max(5vw,calc((100vw - 1500px)/2))}}@media(max-width:850px){.site-logo span{display:none}.site-nav{gap:20px}.hero{padding-top:50px}.hero-stage{grid-template-columns:1.3fr 1fr;height:320px}.hero-frame:last-child{display:none}.section{padding-block:65px}.workflow-grid{grid-template-columns:1fr 1fr}.workflow-grid article:nth-child(2){border-right:0}.workflow-grid article:nth-child(-n+2){border-bottom:1px solid var(--line)}.feature-layout{gap:35px}.feature-copy h2{font-size:28px}.faq{gap:40px}.possibilities>span{display:none}.possibilities>div{width:100%;justify-content:space-between}.sheet-images img{height:110px}}@media(max-width:560px){.site-header{height:72px;padding-inline:20px}.site-logo img{width:105px;height:40px}.site-nav>a:not(.site-button){display:none}.site-button{padding:11px 17px;min-height:44px}.hero{padding:42px 20px 0}.hero h1{font-size:36px;letter-spacing:-1px;margin-top:19px}.hero-intro{font-size:12px;max-width:320px}.eyebrow{font-size:9px;letter-spacing:2px}.hero-actions{margin:24px 0 30px}.hero-stage{grid-template-columns:1.4fr 1fr;gap:7px;height:255px}.frame-info{left:13px;bottom:15px}.frame-info strong{font-size:15px}.frame-info>span{display:none}.frame-corner{left:12px;font-size:8px}.stage-caption{font-size:8px;letter-spacing:0}.possibilities{margin-top:15px;padding:20px}.possibilities>div{font-size:11px;gap:10px}.section{padding:53px 20px}.section-heading{display:block;margin-bottom:25px}.section-heading>p{margin-top:17px;font-size:12px}.workflow-grid article{padding:22px 18px}.step-label{margin-bottom:26px;font-size:8px}.workflow-grid h3{font-size:14px}.workflow-grid p{font-size:11px}.feature-layout,.faq{grid-template-columns:1fr;gap:33px}.contact-sheet{margin:5px 6px 15px}.sheet-images img{height:120px}.faq{gap:30px}.closing{padding-block:58px}.site-footer{display:block;padding:24px 20px}.site-footer nav{margin-top:16px;gap:20px}.site-footer strong{margin-right:14px}.site-footer span{font-size:10px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}