:root{--ink:#191c1a;--muted:#626b65;--line:#d9dfd9;--orange:#f8a322;--mint:#cfe3d5;--paper:#f6f8f5}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:#fff;letter-spacing:0}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:0}p{line-height:1.85}.shell{width:min(1160px,calc(100% - 64px));margin:auto}.section{padding:105px 0;scroll-margin-top:72px}
.site-header{position:absolute;z-index:20;top:0;left:0;width:100%;color:#fff;border-bottom:1px solid rgba(255,255,255,.13)}.header-inner{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;font-size:19px;white-space:nowrap}.brand-accent{color:var(--orange)}.brand-symbol{width:27px;height:27px;display:grid;grid-template-columns:repeat(2,1fr);gap:3px;transform:rotate(-8deg)}.brand-symbol i{display:block;background:#fff}.site-nav{display:flex;align-items:center;gap:32px;font-size:13px;font-weight:700}.site-nav>a:not(.header-download){color:#d9ddda;transition:color .2s}.site-nav>a:hover{color:#fff}.header-download{border:1px solid #8f9991;border-radius:3px;padding:11px 16px}.header-download span{margin-left:14px}.menu-toggle{display:none}
.hero{position:relative;background:#171918;color:#fff;min-height:650px;height:min(690px,92svh);overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,#171918 0%,#1c211c 58%,#263c30 100%)}.hero-grid{height:100%;position:relative;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:20px;padding-top:70px}.hero-copy{position:relative;z-index:2;max-width:630px}.eyebrow{display:flex;align-items:center;gap:13px;margin-bottom:25px;color:#5d7c69;font-size:11px;font-weight:800;letter-spacing:2px;line-height:1.4}.eyebrow-light{color:#edbb68}.eyebrow-rule{width:28px;height:1px;flex:none;background:currentColor}.hero h1{font-size:clamp(43px,4.6vw,68px);line-height:1.18;margin-bottom:24px;font-weight:800}.hero h1 span{color:#f4e7ce}.hero-lead{max-width:590px;color:#d7ded8;font-size:17px;line-height:1.95;margin-bottom:30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{min-height:52px;min-width:150px;display:inline-flex;justify-content:space-between;align-items:center;gap:25px;padding:0 22px;border-radius:3px;font-size:14px;font-weight:800;transition:transform .2s,background .2s}.button:hover{transform:translateY(-3px)}.button-orange{background:var(--orange);color:#1b1d1a}.button-orange:hover{background:#ffc15d}.button-ghost{color:#fff;border:1px solid #778079}.button-ghost:hover{background:#333d34}.hero-caution{color:#a9b2ab;font-size:11px;margin:26px 0 0}.hero-art{height:min(72vh,600px);display:grid;place-items:center;position:relative}.hero-art-backdrop{position:absolute;width:min(92%,510px);aspect-ratio:1;border-radius:50%;background:#2b3e30;opacity:.5}.hero-art img{position:relative;width:min(100%,580px);height:100%;object-fit:contain;filter:drop-shadow(15px 20px 24px rgba(0,0,0,.3));animation:float 6s ease-in-out infinite}.scroll-link{position:absolute;z-index:3;bottom:20px;left:max(32px,calc((100% - 1160px)/2));display:flex;gap:11px;align-items:center;color:#aeb8af;font-size:11px;letter-spacing:1px}.scroll-link span{display:block;width:18px;height:30px;border:1px solid currentColor;border-radius:11px;position:relative}.scroll-link span:after{content:"";position:absolute;left:7px;top:6px;width:2px;height:6px;background:currentColor;animation:scroll 2s infinite}
.section-head{max-width:680px}.section-head h2,.about h2,.download h2,.faq h2,.closing h2{font-size:clamp(32px,3.7vw,49px);line-height:1.28;margin-bottom:18px}.section-head>p:last-child,.faq-intro{font-size:16px;color:var(--muted);max-width:570px}.features{background:#fff}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:52px}.feature{padding:28px 25px 36px 0;min-height:245px}.feature+.feature{border-left:1px solid var(--line);padding-left:25px}.feature-index{font-size:12px;font-weight:800;color:#8da294}.feature-icon{height:68px;padding-top:18px;font-size:34px;color:#c27b24}.feature h3{font-size:20px;margin-bottom:9px}.feature p{font-size:13px;color:var(--muted);margin:0}.about{background:var(--paper)}.about-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:110px}.about-list{border-top:1px solid var(--line)}.about-list>div{padding:20px 0;border-bottom:1px solid var(--line)}.about-list span{font-size:11px;font-weight:800;color:#af722c}.about-list h3{font-size:19px;margin:8px 0}.about-list p{color:var(--muted);font-size:14px;margin-bottom:0}
.download{background:#fff}.download-heading{text-align:center;max-width:720px;margin:0 auto 50px}.download-heading .eyebrow{justify-content:center}.download-heading p:not(.eyebrow){font-size:17px;color:var(--muted);margin:0}.device-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.device-panel{min-width:0;text-align:center;padding:34px 30px 42px}.device-panel+.device-panel{border-left:1px solid var(--line)}.device-art{height:360px;display:flex;align-items:end;justify-content:center;overflow:hidden}.device-art img{width:100%;height:100%;object-fit:contain;object-position:center bottom;transition:transform .35s}.device-panel:hover .device-art img{transform:translateY(-6px)}.device-copy h3{font-size:22px;margin:14px 0 2px}.device-copy p{font-size:15px;margin-bottom:16px}.device-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.store-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:#111;color:#fff;border-radius:5px;min-width:142px;height:47px;padding:4px 11px;text-align:left;font-size:16px;font-weight:700;line-height:1.05}.store-button small{font-size:9px;font-weight:500;display:block;margin-bottom:3px}.store-symbol{font-size:24px;line-height:1}.platform-button{background:#111;color:#fff;border-radius:5px;min-width:120px;height:46px;padding:0 15px;display:inline-flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;font-weight:700}.store-button:hover,.platform-button:hover{background:#354239}.device-note{display:block;color:#7b847c;font-size:11px;margin-top:12px}
.faq{background:#edf2ed}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.faq-list{border-top:1px solid #c8d4ca}.faq-list details{border-bottom:1px solid #c8d4ca}.faq-list summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:15px;cursor:pointer;font-size:17px;font-weight:700;padding:22px 0}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{font-size:26px;color:#ad732c;font-weight:300;transition:transform .2s}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{color:var(--muted);font-size:14px;margin:-4px 30px 20px 0}.closing{background:#273c2e;color:#fff;padding:70px 0}.closing-inner{display:flex;justify-content:space-between;align-items:end;gap:30px}.closing h2{margin-bottom:8px}.closing p:not(.eyebrow){color:#c2d4c6;margin:0}.closing .button{flex:none}.site-footer{background:#151a16;color:#fff;padding:50px 0 25px}.footer-inner{display:flex;justify-content:space-between;gap:50px}.footer-inner p{font-size:12px;color:#94a296;max-width:610px;margin:22px 0 0}.footer-inner nav{display:flex;align-items:start;gap:28px;color:#b5c0b7;font-size:13px}.footer-inner nav a:hover{color:#fff}.footer-bottom{border-top:1px solid #344138;margin-top:44px;padding-top:22px;color:#8a998c;font-size:12px}
.reveal{opacity:0;transform:translateY(25px);transition:opacity .7s ease,transform .7s ease}.reveal.is-visible{opacity:1;transform:none}.feature:nth-child(2){transition-delay:.1s}.feature:nth-child(3){transition-delay:.2s}.feature:nth-child(4){transition-delay:.3s}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}@keyframes scroll{0%{transform:translateY(0);opacity:1}80%{transform:translateY(9px);opacity:0}100%{opacity:0}}
@media(max-width:1000px){.site-nav{gap:17px}.hero h1{font-size:50px}.hero-art{height:510px}.feature-grid{grid-template-columns:repeat(2,1fr)}.feature:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--line)}.feature:nth-child(4){border-top:1px solid var(--line)}.about-grid,.faq-grid{gap:55px}.device-art{height:320px}.device-panel{padding:30px 18px 40px}}
@media(max-width:720px){.shell{width:calc(100% - 40px)}.section{padding:74px 0}.header-inner{min-height:68px}.brand{font-size:16px}.brand-symbol{width:23px;height:23px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:5px;border:0;background:none}.menu-toggle span{width:100%;height:2px;background:#fff}.site-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:15px 20px 20px;background:#1b211c;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 16px 28px rgba(0,0,0,.2)}.site-nav.is-open{display:flex}.site-nav a{padding:13px 3px}.header-download{margin-top:8px;text-align:center}.hero{height:auto;min-height:0}.hero-grid{display:flex;flex-direction:column;align-items:stretch;gap:0;padding-top:112px;padding-bottom:45px}.hero h1{font-size:clamp(36px,9vw,48px)}.hero-lead{font-size:15px}.hero-art{height:370px;margin-top:8px}.hero-art img{width:100%;height:100%}.hero-art-backdrop{width:300px}.scroll-link{display:none}.feature-grid{margin-top:32px}.feature{min-height:0;padding-bottom:26px}.feature-icon{height:55px;padding-top:12px}.about-grid,.faq-grid{grid-template-columns:1fr;gap:28px}.device-grid{grid-template-columns:1fr}.device-panel+.device-panel{border-left:0;border-top:1px solid var(--line)}.device-art{height:330px}.closing-inner{align-items:start;flex-direction:column}.footer-inner{flex-direction:column;gap:28px}.footer-inner nav{flex-wrap:wrap;gap:15px 22px}}
@media(max-width:420px){.hero-actions .button{min-width:0;flex:1;padding:0 12px;gap:8px}.eyebrow{font-size:9px;letter-spacing:1.4px}.hero-art{height:315px}.feature-grid{grid-template-columns:1fr}.feature,.feature+.feature,.feature:nth-child(3),.feature:nth-child(4){border-left:0;border-top:1px solid var(--line);padding:20px 0;min-height:0}.feature:first-child{border-top:0}.device-art{height:280px}.device-panel{padding-left:5px;padding-right:5px}.store-button{min-width:130px}.platform-button{min-width:115px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}
.store-button{display:block;width:131px;min-width:0;height:50px;padding:0;background:transparent}.store-button img{width:100%;height:100%;object-fit:contain}.store-button:hover{background:transparent;transform:translateY(-2px)}
.outbound[aria-disabled="true"]{opacity:.55;cursor:not-allowed}
@media(max-width:420px){.store-button{width:min(131px,calc((100vw - 55px)/2))}}
@media(max-width:720px){.hero-grid{padding-top:96px;padding-bottom:22px}.hero h1{font-size:clamp(29px,8vw,42px)}.hero-art{height:285px}.hero-caution{margin-top:18px}}
@media(max-width:350px){.hero-art{height:220px}.hero-grid{padding-top:88px;padding-bottom:16px}.hero h1{font-size:26px}}