:root{--bg:#0c1815;--surface:#13231e;--surface-light:#192d25;--text:#f2f3e9;--muted:#a4b2a8;--accent:#b2ef91;--line:#304036;--ink:#153c2e;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:6px}[hidden]{display:none!important}.wrap{max-width:1220px;margin:auto;padding-left:42px;padding-right:42px}.header{max-width:1340px;min-height:94px;margin:auto;padding:22px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;letter-spacing:1px}.brand-sub{font-size:11px;letter-spacing:3px;display:block;margin-top:3px;color:var(--muted)}nav{display:flex;gap:34px;font-size:14px;color:var(--muted)}nav a:hover,.text-button:hover,.footer a:hover{color:var(--accent)}.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;border:1px solid var(--accent);background:var(--accent);color:var(--ink);padding:18px 25px;border-radius:8px;font-size:15px;font-weight:700;transition:background .2s,transform .2s}.button:hover{background:var(--text);border-color:var(--text);transform:translateY(-2px)}.button-small{font-size:13px;padding:12px 18px;gap:16px}.hero{display:flex;align-items:center;gap:50px;min-height:820px;padding-top:66px;padding-bottom:66px}.hero-copy{flex:1.15}.eyebrow{display:flex;gap:9px;align-items:center;font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:600;margin:0 0 28px}.status-dot{display:block;width:6px;height:6px;background:var(--accent);border-radius:50%}h1{font-size:clamp(42px,4.8vw,66px);line-height:1.28;letter-spacing:-2px;margin:0 0 28px;font-weight:800}h1 span,.mission h2 span{color:var(--accent)}.lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:480px;margin-bottom:32px}.actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap}.text-button{display:flex;align-items:center;gap:9px;font-size:14px}.play-icon{display:flex;width:29px;height:29px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%;font-size:19px}.availability{font-size:11px;color:var(--muted);margin:17px 0 0;line-height:1.8}.hero-foot{display:flex;gap:20px;align-items:center;margin-top:64px;font-size:12px;color:var(--muted)}.hero-foot i{width:3px;height:3px;background:var(--accent);border-radius:50%}.hero-visual{flex:1;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 25px;display:flex;flex-direction:column;align-items:center;background-image:radial-gradient(ellipse at center,#28553a 0,transparent 70%)}.visual-label{width:100%;display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:10px;letter-spacing:1px;margin-bottom:22px}.visual-label span:last-child{font-size:9px}.hero-device{width:232px;border:6px solid #070f0c;box-shadow:0 24px 52px #0006;border-radius:30px;overflow:hidden}.hero-device img{width:100%;height:auto}.visual-caption{display:flex;gap:10px;align-items:center;font-size:11px;margin-top:22px;color:var(--muted)}.small-ball{color:var(--accent)}.section-divider{display:flex;justify-content:space-between;gap:20px;padding-top:25px;padding-bottom:25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.section{padding-top:108px;padding-bottom:108px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:60px}h2{font-size:clamp(28px,3vw,40px);line-height:1.5;letter-spacing:-1px;margin:0}.section-heading p:last-child:not(.eyebrow){line-height:1.9;color:var(--muted);font-size:14px;margin:0}.experience-layout{display:flex;gap:90px;align-items:center}.tour-copy{flex:1.3}.tour-tabs{display:flex;flex-direction:column}.tour-step{display:flex;width:100%;gap:20px;align-items:flex-start;text-align:left;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--muted);padding:29px 16px;cursor:pointer;border-radius:8px}.tour-step.active{background:var(--surface);color:var(--text);border-color:var(--accent)}.step-number{color:var(--accent);font-size:12px;letter-spacing:1px;padding-top:3px}.tour-step strong{font-size:18px;display:block;font-weight:600}.tour-step small{font-size:12px;line-height:1.8;display:block;margin-top:12px;color:var(--muted)}.tour-step>span:last-child{margin-left:auto;color:var(--accent)}.tour-note{color:var(--muted);font-size:13px;line-height:1.9;padding:12px 16px;margin-top:28px}.tour-panel{flex:1;display:flex;flex-direction:column;align-items:center;background:var(--surface);border-radius:var(--radius);padding:30px 26px;border:1px solid var(--line)}.tour-image{width:215px;border:5px solid #070f0c;border-radius:24px;overflow:hidden}.tour-image img{width:100%;height:auto}.tour-caption{display:flex;justify-content:space-between;gap:16px;width:100%;margin-top:23px;font-size:11px;color:var(--muted)}.tour-caption span:first-child{color:var(--accent)}#video-section{margin-top:65px}video{width:100%;max-height:660px;background:var(--surface);border-radius:var(--radius)}.feature-section{background:#101e19;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.feature-row{display:flex;align-items:center;gap:90px;margin-top:70px}.feature-row.reverse{flex-direction:row-reverse;border-top:1px solid var(--line);padding-top:70px}.feature-copy{flex:1.25}.feature-index{font-size:11px;color:var(--accent);letter-spacing:2px}h3{font-size:28px;line-height:1.5;margin:20px 0}.feature-copy p{font-size:15px;color:var(--muted);line-height:2;max-width:420px}.tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.tags span{font-size:11px;border:1px solid var(--line);padding:8px 12px;border-radius:4px;color:var(--muted)}.feature-image{flex:1;border:1px solid var(--line);background:var(--surface-light);border-radius:var(--radius);padding:26px;display:flex;justify-content:center}.feature-image img{width:200px;height:auto;border-radius:14px;box-shadow:0 15px 35px #0003}.feature-copy .image-note{font-size:10px;margin-top:25px}.mission{text-align:center}.mission .eyebrow{justify-content:center}.mission h2{font-size:clamp(29px,3.5vw,46px);line-height:1.6}.mission>p:not(.eyebrow){font-size:14px;color:var(--muted);line-height:2;margin:26px 0}.mission-sign{font-size:11px;letter-spacing:3px;color:var(--accent)}.download-section{background:var(--accent);color:var(--ink);padding:74px 0}.download-layout{display:flex;gap:50px;align-items:center;justify-content:space-between}.download-section .eyebrow{color:var(--ink)}.download-layout>div:first-child{flex:1.3}.download-layout>div:first-child>p:last-child{font-size:13px;line-height:1.8;margin-top:22px}.download-card{flex:1;background:var(--bg);color:var(--text);padding:30px;border-radius:16px;max-width:380px}.platform{font-size:10px;letter-spacing:3px;color:var(--accent)}.download-card h3{font-size:23px;margin:15px 0}.download-card>p{color:var(--muted);font-size:12px;line-height:1.8}.download-card .button{width:100%;margin:12px 0}.download-status{border:1px solid var(--line);border-radius:8px;padding:14px}.installation-link{font-size:12px;display:inline-block;margin-top:12px;color:var(--accent)}.faq{display:flex;gap:100px}.faq>div:first-child{flex:1}.faq-list{flex:2}details{border-bottom:1px solid var(--line);padding:21px 0}details:first-child{padding-top:0}summary{cursor:pointer;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary:after{content:'+';color:var(--accent);font-size:20px}details[open] summary:after{content:'−'}details p{font-size:13px;color:var(--muted);line-height:2;margin:15px 30px 0 0}.footer{border-top:1px solid var(--line);padding-top:30px;padding-bottom:30px;display:flex;gap:28px;align-items:center;flex-wrap:wrap}.footer .brand{font-size:13px}.footer p,.footer>a:not(.brand),.footer>span{font-size:10px;color:var(--muted)}.footer>span{margin-left:auto}.skip-link{position:fixed;top:-100px;left:20px;background:var(--accent);color:var(--ink);padding:12px;z-index:10}.skip-link:focus{top:10px}@media(min-width:1500px){.hero{min-height:850px}}@media(max-width:900px){.wrap{padding-left:28px;padding-right:28px}.header{padding-left:28px;padding-right:28px}nav{gap:20px}.hero{gap:30px;min-height:auto}.hero-device{width:200px}.hero-visual{padding:20px 16px}.hero-foot{gap:12px}.experience-layout,.feature-row{gap:40px}.section{padding-top:75px;padding-bottom:75px}.faq{gap:40px}.download-layout{gap:30px}.visual-label span:last-child{display:none}.section-heading{gap:25px}.section-heading p:last-child:not(.eyebrow){max-width:220px}}@media(max-width:640px){.wrap{padding-left:22px;padding-right:22px}.header{padding:18px 22px;min-height:80px}.brand{font-size:16px}.brand img{width:32px;height:32px}.header nav{display:none}.button-small{font-size:11px;padding:10px 12px;gap:8px}.hero{flex-direction:column;align-items:stretch;padding-top:48px;padding-bottom:44px;gap:38px}h1{font-size:44px;letter-spacing:-1.5px}.hero .eyebrow{font-size:10px;margin-bottom:22px}.lead{font-size:14px;line-height:1.9}.actions{gap:20px}.actions .button{padding:15px 18px;font-size:13px;gap:18px}.text-button{font-size:12px}.availability{font-size:10px}.hero-foot{margin-top:30px;font-size:11px;gap:18px}.hero-visual{padding:20px;max-width:440px;width:100%;align-self:center}.hero-device{width:210px}.visual-label span:last-child{display:block}.section-divider{flex-direction:column;gap:8px;font-size:10px}.section{padding-top:60px;padding-bottom:60px}.section-heading{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:30px}.section-heading .eyebrow{font-size:10px;margin-bottom:20px}.section-heading p:last-child:not(.eyebrow){max-width:none;font-size:12px}.experience-layout{flex-direction:column;gap:25px;align-items:stretch}.tour-step{padding:22px 12px;gap:14px}.tour-step strong{font-size:16px}.tour-step small{font-size:11px}.tour-note{display:none}.tour-panel{padding:24px}.tour-image{width:190px}.feature-row,.feature-row.reverse{flex-direction:column;gap:28px;align-items:stretch;margin-top:40px}.feature-row.reverse{padding-top:40px}.feature-copy p{font-size:13px}.feature-copy h3{font-size:25px}.feature-image img{width:190px}.tags{margin-top:20px}.mission h2{font-size:28px}.mission>p:not(.eyebrow){font-size:12px}.download-layout{flex-direction:column;align-items:stretch;gap:28px}.download-card{max-width:none}.download-section{padding:55px 0}.download-section h2{font-size:28px}.faq{flex-direction:column;gap:30px}.faq .eyebrow{margin-bottom:16px}.footer{gap:14px}.footer .brand{width:100%}.footer>span{margin-left:0;width:100%;font-size:9px}summary{font-size:14px}.eyebrow{letter-spacing:1.5px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.download-qr{display:flex;align-items:center;gap:16px;margin:22px 0 5px}.download-qr img{border-radius:6px;background:white;width:108px;height:108px}.download-qr span{font-size:11px;line-height:1.9;color:var(--muted)}
