/* ===== style.css — fonts embedded as subsetted woff2 data URIs ===== */
@font-face{font-family:Geist;src:url(fonts/anchor-font-1.woff2) format('woff2')}@font-face{font-family:Geist;src:url(fonts/anchor-font-2.woff2) format('woff2');font-weight:600}@font-face{font-family:Geist Pixel;src:url(fonts/anchor-font-3.woff2) format('woff2')}
:root{color-scheme:dark;background:#01040a;font-family:Geist,Arial,sans-serif;color:#fff}*{box-sizing:border-box}html,body{margin:0;background:#01040a}body{overflow-x:hidden}main{height:360vh;pointer-events:none}#scene,.vignette{position:fixed;inset:0;width:100%;height:100%}#scene{display:block}.vignette{pointer-events:none;background:radial-gradient(circle at 50% 53%,transparent 20%,rgba(0,4,10,.1) 56%,rgba(0,2,6,.8) 100%)}
.site-header{position:fixed;z-index:40;top:28px;left:36px;right:40px;height:42px;display:flex;align-items:center}.brand{width:138px;height:34px;display:block}.brand img{width:100%;height:100%;object-fit:contain}.site-header nav{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:32px;padding:12px 24px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(129,129,129,.2);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.site-header nav a{font-size:16px;color:white;text-decoration:none;white-space:nowrap}.pill{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:999px;font-size:16px;color:#fff;text-decoration:none;white-space:nowrap;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.primary{background:#218eff}.light{background:#fff;color:#000}.demo{margin-left:auto}
.hero-ui,.second-ui{position:fixed;inset:0;z-index:20;pointer-events:none;will-change:opacity,transform}.hero-title{position:absolute;left:40px;top:60%;width:616px;transform:translateY(-2px)}.kicker{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border:1px solid #218eff;border-radius:999px;font-size:14px;text-transform:uppercase;backdrop-filter:blur(8px)}.kicker i{width:10px;height:10px;border-radius:50%;background:#218eff}h1,h2{margin:20px 0 0;font-family:'Geist Pixel',monospace;font-weight:400;font-size:clamp(68px,6.67vw,96px);line-height:.9;letter-spacing:-.035em}h1{width:616px}.hero-copy{position:absolute;left:calc(75% + 1px);top:77.1%;width:331px}.hero-copy>p,.second-intro{margin:0;font-size:16px;line-height:1.25}.actions{display:flex;gap:8px;margin-top:20px}.actions .pill{padding:16px 20px}.app-download{position:absolute;right:40px;top:137px;width:190px;display:flex;align-items:center;gap:12px}.qr{width:72px;height:72px}.app-download p{margin:0 0 8px;font-size:16px;line-height:18px}.app-download span{display:flex;gap:4px}.app-download span img{width:30px;height:30px}
.logo-flight{position:fixed;inset:0;z-index:28;pointer-events:none;perspective:1100px}.trust-card{position:absolute;left:0;top:0;width:clamp(150px,15vw,220px);height:clamp(72px,8vw,112px);display:flex;align-items:center;justify-content:center;padding:24px 34px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(129,129,129,.2);box-shadow:0 20px 50px rgba(0,0,0,.25);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);opacity:0;will-change:transform,opacity}.trust-card img{display:block;max-width:100%;max-height:48px;filter:brightness(0) invert(1)}
.second-ui{opacity:0;visibility:hidden;transform:none!important;will-change:auto}.second-ui h2{position:absolute;left:40px;top:118px;width:616px;margin:0}.second-intro{position:absolute;left:calc(75% + 1px);top:144px;width:319px;font-size:14px}.feature-grid{position:absolute;left:40px;right:40px;bottom:40px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.feature-grid article{height:260px;display:flex;flex-direction:column;justify-content:space-between;padding:24px;border:1px solid rgba(255,255,255,.2);border-radius:28px;background:rgba(129,129,129,.2);backdrop-filter:blur(16px) saturate(115%);-webkit-backdrop-filter:blur(16px) saturate(115%)}.feature-grid article>span{text-align:right;font-size:16px}.feature-grid h3{margin:0 0 12px;font-size:18px;font-weight:600}.feature-grid p{margin:0;font-size:14px;line-height:20px}
@media(max-width:900px){.site-header{left:20px;right:20px}.site-header nav{display:none}.brand{width:116px}.hero-title{left:24px;top:58%;width:80vw}.hero-title h1{width:80vw;font-size:56px}.hero-copy{left:24px;top:auto;bottom:32px;width:min(88vw,430px)}.app-download{right:20px;top:90px}.second-ui h2{left:24px;top:90px;width:80vw;font-size:54px}.second-intro{left:24px;top:220px;width:70vw}.feature-grid{left:20px;right:20px;bottom:24px;grid-template-columns:1fr 1fr}.feature-grid article{height:190px;padding:16px}.trust-card{width:130px;height:66px;padding:16px 24px}}@media(max-width:560px){.app-download{display:none}.hero-title h1{font-size:44px}.feature-grid article{height:160px}.feature-grid p{display:none}.feature-grid h3{font-size:14px}}

/* ===== animations.css ===== */
/* Intro and in-view motion are isolated here so the scene animation stays independent. */
.preloader{position:fixed;inset:0;z-index:1000;background:#000;display:flex;align-items:center;justify-content:center;transform:translateY(0);will-change:transform;transition:transform 1.05s cubic-bezier(.76,0,.24,1)}
.preloader.is-leaving{transform:translateY(-100%)}
.preloader.is-gone{display:none}
.preloader-logo{width:64px;height:64px;display:block;object-fit:contain}
.preloader-status{position:absolute;left:50%;bottom:40px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font-family:'Geist',sans-serif;text-align:center}
.preloader-status span{color:rgba(255,255,255,.5);font-size:18px;font-weight:400}
.preloader-status strong{color:#fff;font-size:28px;font-weight:400;line-height:1}.preloader-status b{font:inherit}
html.is-loading{overflow:hidden}
.custom-cursor{position:fixed;z-index:1100;top:0;left:0;width:0;height:0;opacity:0;pointer-events:none;transition:opacity .2s ease;will-change:transform}.custom-cursor.is-visible{opacity:1}.custom-cursor-ring{position:absolute;top:0;left:0;width:30px;height:30px;border:1px solid #fff;border-radius:50%;transform:translate(-50%,-50%);transition:width .25s ease,height .25s ease,background-color .25s ease;mix-blend-mode:difference}.custom-cursor-ring::after{content:"";position:absolute;top:50%;left:50%;width:12px;height:12px;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}.custom-cursor.is-hovering .custom-cursor-ring{width:46px;height:46px;background:rgba(255,255,255,.12)}
.hero-copy{left:auto;right:40px}
.site-header,.hero-title .kicker,.app-download,.hero-copy>p,.hero-copy .actions .pill{opacity:0}
.site-header{transform:translateY(22px);filter:blur(5px)}
.hero-title .kicker,.app-download,.hero-copy>p,.hero-copy .actions .pill{transform:translateY(20px);filter:blur(7px)}
.title-word{display:inline-block;white-space:nowrap}
.title-char{display:inline-block;opacity:0;transform:translateY(15px);filter:blur(12px);will-change:opacity,transform,filter}

.intro-ready .site-header{animation:layer-rise .8s cubic-bezier(.22,1,.36,1) .12s forwards}
.intro-ready .hero-title .kicker{animation:layer-rise .75s cubic-bezier(.22,1,.36,1) .72s forwards}
.intro-ready .hero-title .title-char{animation:letter-reveal .72s cubic-bezier(.22,1,.36,1) calc(.68s + var(--char-index)*.032s) forwards}
.intro-ready .app-download{animation:layer-rise .75s cubic-bezier(.22,1,.36,1) 1.55s forwards}
.intro-ready .hero-copy>p{animation:layer-rise .8s cubic-bezier(.22,1,.36,1) 1.84s forwards}
.intro-ready .hero-copy .actions .pill:first-child{animation:layer-rise .72s cubic-bezier(.22,1,.36,1) 2.08s forwards}
.intro-ready .hero-copy .actions .pill:last-child{animation:layer-rise .72s cubic-bezier(.22,1,.36,1) 2.2s forwards}

.second-ui h2 .title-char,.second-ui .second-intro,.second-ui .feature-grid article{opacity:0}
.second-ui h2 .title-char{transform:translateY(15px);filter:blur(12px)}
.second-ui .second-intro,.second-ui .feature-grid article{transform:translateY(30px)}
.second-ui .second-intro{filter:blur(7px)}
.second-ui.is-inview h2 .title-char{animation:letter-reveal .72s cubic-bezier(.22,1,.36,1) calc(var(--char-index)*.032s) forwards}
.second-ui.is-inview .second-intro{animation:layer-rise .8s cubic-bezier(.22,1,.36,1) .72s forwards}
.second-ui.is-inview .feature-grid article{animation:card-rise .82s cubic-bezier(.22,1,.36,1) calc(.98s + var(--card-index,0)*.13s) forwards}
.second-ui .feature-grid article:nth-child(1){--card-index:0}.second-ui .feature-grid article:nth-child(2){--card-index:1}.second-ui .feature-grid article:nth-child(3){--card-index:2}.second-ui .feature-grid article:nth-child(4){--card-index:3}

@keyframes layer-rise{to{opacity:1;transform:translateY(0);filter:blur(0)}}
@keyframes letter-reveal{to{opacity:1;transform:translateY(0);filter:blur(0)}}
@keyframes card-rise{to{opacity:1;transform:translateY(0)}}

@media(max-width:900px){.hero-copy{left:24px;right:auto}}
@media(pointer:fine){body,a,button{cursor:none}}
@media(pointer:coarse){.custom-cursor{display:none}}
@media(prefers-reduced-motion:reduce){.site-header,.hero-title .kicker,.app-download,.hero-copy>p,.hero-copy .actions .pill,.title-char,.second-ui .second-intro,.second-ui .feature-grid article{animation-duration:.01ms!important;animation-delay:0s!important}}

body{font-family:Geist,"Microsoft YaHei","PingFang SC",sans-serif}button{font:inherit}.pill{border:0;cursor:pointer}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible{outline:3px solid #90dfff;outline-offset:5px}[hidden]{display:none!important}
.brand{width:auto;height:auto;font-size:22px;font-weight:600;letter-spacing:1px;color:white;text-decoration:none}.brand span{display:block;font-size:8px;letter-spacing:2px;color:#adbacb;margin-top:4px}.header-actions{display:flex;gap:12px;align-items:center;margin-left:auto}.motion-toggle{border:1px solid #ffffff30;border-radius:50%;width:38px;height:38px;background:#ffffff10;color:#c9d6e8;cursor:pointer;font-size:13px}.hero-ui .actions,.second-ui a{pointer-events:auto}.hero-title h1,.second-ui h2{font-family:'Geist Pixel',"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.08;letter-spacing:-.04em}.title-word{display:block}.hero-copy>p{line-height:1.55;font-size:15px;color:#e1e5ee}.hero-copy{top:auto;bottom:36px;right:40px;left:auto;width:350px}.hero-title{top:auto;bottom:48px;width:55vw}.hero-title h1{width:auto}.hero-title .kicker{font-size:13px}.actions{gap:9px}.actions .pill{font-size:15px;gap:14px;padding:15px 20px}.app-download{width:auto}.chemical-mark{width:74px;height:74px;border:1px solid #80b9e055;background:#13325a3d;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px}.chemical-mark strong{font-size:19px;font-weight:500;color:#dbf5ff}.chemical-mark small{font-size:7px;letter-spacing:1px;color:#81aece}.chemical-mark span{font-size:8px;color:#aacfe5}.app-download p{font-size:14px;line-height:1.5}.unit-note{font-size:10px;color:#89a3c4}.scene-hint{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);font-size:9px;color:#89a5cd;white-space:nowrap;opacity:0}.intro-ready .scene-hint{animation:layer-rise .8s ease 2.3s forwards}.trust-card{flex-direction:column;gap:8px}.trust-card strong{font-size:23px;letter-spacing:4px;font-weight:500}.trust-card small{font-size:8px;letter-spacing:2px;color:#afc7e1}.feature-grid article a{display:inline-block;margin-top:16px;font-size:12px;color:#83ceff;text-decoration:none}.second-intro{right:40px;left:auto;line-height:1.65}.second-ui h2{font-size:clamp(60px,6vw,90px)}.preloader-logo{display:grid;place-items:center;border:1px solid #64b0ff70;border-radius:17px;font-size:34px;color:#d9f0ff;background:#071c36}.scene-fallback{position:fixed;inset:0;background:url('../media/anchor-tree-fallback.svg') center center/auto 100% no-repeat}.scene-ready .scene-fallback{opacity:0}.has-js #scene{opacity:0}.has-js.scene-ready #scene{opacity:1}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:fixed;top:10px;left:20px;transform:translateY(-180%);z-index:1200;background:white;color:#071529;padding:12px 20px;border-radius:10px;text-decoration:none}.skip-link:focus{transform:none}
@media(pointer:fine){body,a,button{cursor:auto}.has-cursor:not(.has-modal):not(.motion-paused),.has-cursor:not(.has-modal):not(.motion-paused) a,.has-cursor:not(.has-modal):not(.motion-paused) button{cursor:none}}.has-modal .custom-cursor,.motion-paused .custom-cursor{opacity:0}.motion-paused .title-char,.motion-paused .site-header,.motion-paused .kicker,.motion-paused .hero-copy>p,.motion-paused .actions .pill,.motion-paused .app-download,.motion-paused .scene-hint,.motion-paused .is-inview .title-char,.motion-paused .is-inview .second-intro,.motion-paused .is-inview article{animation:none!important;opacity:1;transform:none;filter:none}
#workspace-dialog{width:min(940px,calc(100vw - 40px));max-height:calc(100svh - 40px);padding:46px;color:#f4f8ff;border:1px solid #86b4ef45;border-radius:28px;background:linear-gradient(145deg,#112b48f5,#080f1cf8);box-shadow:0 35px 130px #0009;overflow:auto}#workspace-dialog::backdrop{background:#000a;backdrop-filter:blur(10px)}.dialog-close{position:absolute;right:20px;top:18px;width:36px;height:36px;border-radius:50%;border:1px solid #adcfff44;background:#b0cff012;color:white;font-size:24px;cursor:pointer}.dialog-eyebrow{font-size:10px;letter-spacing:2px;color:#86b8e1}#workspace-dialog h2{font-family:inherit;font-size:32px;letter-spacing:1px;font-weight:500;line-height:1.4;margin:22px 0 10px}#workspace-description{font-size:13px;color:#a2b8d3;margin:0;line-height:1.7}.workspace-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:33px}.workspace-grid a{position:relative;display:flex;flex-direction:column;gap:14px;min-height:200px;padding:26px 22px;border:1px solid #a4c5ed35;border-radius:20px;background:#759ce013;color:white;text-decoration:none;transition:background .2s,border-color .2s,transform .2s}.workspace-grid a:hover{background:#2b699c55;border-color:#7ccfff;transform:translateY(-4px)}.workspace-grid a>span{font-size:9px;letter-spacing:1.5px;color:#87aaca}.workspace-grid strong{font-size:24px;font-weight:500;margin-top:10px}.workspace-grid small{font-size:11px;color:#a8bdd7;line-height:1.6}.workspace-grid i{position:absolute;bottom:19px;right:23px;font-style:normal;font-size:23px;color:#9ddaff}.dialog-foot{display:flex;justify-content:space-between;gap:20px;font-size:10px;margin-top:27px;color:#7d96b6}.dialog-foot a{color:#b3d1ee;text-decoration:none}.no-script-entry{position:fixed;bottom:10px;right:10px;z-index:100;padding:20px;background:#0c223b;color:white;border:1px solid #69b9ff}.no-script-entry a{color:#a4dfff;margin-left:20px}
body:not(.has-js) .site-header,body:not(.has-js) .kicker,body:not(.has-js) .hero-copy>p,body:not(.has-js) .actions .pill,body:not(.has-js) .app-download{opacity:1;transform:none;filter:none}body:not(.has-js) [data-open-workspace],body:not(.has-js) #motion-toggle{display:none}
@media(max-width:1100px){.site-header nav{gap:20px;font-size:14px}.site-header nav a{font-size:14px}.hero-title h1{font-size:74px}.hero-title{left:26px}.hero-copy{right:26px;width:310px}.app-download{right:26px}.actions .pill{padding:14px 17px;font-size:13px}}
@media(max-width:900px){.hero-title{left:24px;top:auto;bottom:210px;width:90vw}.hero-title h1{font-size:64px}.hero-copy{left:24px;right:auto;bottom:40px;width:min(88vw,430px)}.scene-hint{bottom:13px;font-size:8px}.second-ui h2{font-size:54px}.second-intro{left:24px;right:auto}.header-actions{gap:8px}.feature-grid article{height:190px}.trust-card strong{font-size:17px;letter-spacing:2px}.trust-card small{font-size:7px;letter-spacing:1px}}
@media(max-width:560px){.site-header{top:22px;height:38px}.brand{font-size:19px;width:auto}.brand span{font-size:7px;letter-spacing:1px}.demo{font-size:12px;padding:11px 16px}.motion-toggle{width:31px;height:31px}.hero-title{bottom:212px}.hero-title h1{font-size:54px}.kicker{padding:10px 13px}.hero-title .kicker{font-size:10px}.hero-copy{width:calc(100vw - 48px);bottom:45px}.hero-copy>p{font-size:13px}.actions .pill{padding:14px 19px;font-size:13px}.second-ui h2{font-size:44px;top:100px}.second-intro{top:218px;font-size:12px;max-width:84vw}.feature-grid article{height:168px}.feature-grid article a{font-size:11px;margin-top:14px}.feature-grid h3{font-size:18px}.feature-grid article>span{font-size:11px}.trust-card{width:132px;height:68px}.scene-hint{font-size:7px}.workspace-grid{grid-template-columns:1fr;margin-top:24px;gap:11px}.workspace-grid a{min-height:122px;padding:18px 22px;gap:9px}.workspace-grid strong{font-size:21px;margin-top:0}.workspace-grid i{bottom:21px}.workspace-grid small{font-size:10px}#workspace-dialog{padding:33px 22px 26px;border-radius:22px}#workspace-dialog h2{font-size:24px;letter-spacing:0}.dialog-eyebrow{font-size:8px}.dialog-foot{font-size:8px;gap:10px}.dialog-close{right:13px;top:11px;width:30px;height:30px;font-size:20px}}
@media(max-height:650px) and (min-width:901px){.hero-title h1{font-size:60px}.hero-title{bottom:32px}.hero-copy{bottom:25px}.app-download{top:105px}.scene-hint{display:none}.feature-grid article{height:215px}.second-ui h2{top:100px;font-size:55px}.second-intro{top:100px}}
.molecule-legend{position:absolute;right:40px;top:208px;display:flex;gap:13px;align-items:center;font-size:10px;color:#a6bad2;white-space:nowrap}.molecule-legend span{display:flex;align-items:center;gap:5px}.molecule-legend i{width:6px;height:6px;border-radius:50%;box-shadow:0 0 8px currentColor}.molecule-legend .carbon{color:#249fff;background:#249fff}.molecule-legend .oxygen{color:#ff4835;background:#ff4835}.molecule-legend .hydrogen{color:#deefff;background:#deefff}.molecule-label{color:#d7e9ff}.ballstick-stage .scene-fallback{background-image:url('../media/ethanol-ballstick-fallback.svg')}@media(max-width:900px){.molecule-legend{left:24px;right:auto;top:285px}}@media(max-width:560px){.molecule-legend{top:268px;font-size:9px;gap:10px}.molecule-label{display:none!important}.ballstick-stage .scene-fallback{background-size:80% auto;background-position:center 255px}}@media(max-height:650px) and (min-width:901px){.molecule-legend{top:162px}}