/* Say design system: app #101417 / #1a2024 / #b6ef8a; type 14–88px; generous sections, fine borders, real product screens. */
:root{--bg:#101417;--card:#1a2024;--line:#303a40;--text:#f1f5f3;--muted:#a1afb5;--lime:#b6ef8a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap{width:min(1280px,calc(100% - 96px));margin:auto}.header{height:84px;padding:0 5%;display:flex;align-items:center;gap:60px;border-bottom:1px solid #ffffff12;position:relative;z-index:4}.brand{font-size:32px;font-weight:900;letter-spacing:-2px;color:var(--lime);line-height:1}.brand span{color:#edf4e9}.header nav{display:flex;gap:36px;font-size:14px;color:#b5c0c0}.header nav a:hover,.footer a:hover{color:var(--lime)}.nav-cta{margin-left:auto;font-size:13px;border:1px solid #52644d;padding:10px 16px;border-radius:4px}.nav-cta span{margin-left:22px;color:var(--lime)}.hero{min-height:690px;display:grid;grid-template-columns:43% 57%;align-items:center;position:relative;padding:76px 0 106px}.eyebrow,.number,.screen-label,.screen-bottom,.hero-index{font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--lime)}.eyebrow i{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--lime);margin-right:10px}.hero h1,.section h2,.faq h2,.end h2{font-size:clamp(48px,5.7vw,82px);line-height:1.17;letter-spacing:-.055em;margin:25px 0;font-weight:750}.hero h1 em,.section h2 em,.faq h2 em,.end h2 em{font-style:normal;color:var(--lime)}.hero-copy>p{max-width:390px;color:var(--muted);font-size:16px;line-height:2}.hero-actions{display:flex;align-items:center;gap:30px;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:42px;padding:15px 20px;font-size:14px;font-weight:700;border-radius:4px}.primary{background:var(--lime);color:#172210}.primary:hover{background:#cff8b1}.text-link{font-size:14px}.text-link span{margin-left:14px;color:var(--lime)}.hero-note{display:flex;align-items:center;gap:14px;margin-top:66px;color:#d8e4da;font-size:13px;line-height:1.5}.hero-note small{color:#728078}.signal{color:var(--lime);font-size:27px}.hero-art{margin-left:22px}.screen-label,.screen-bottom{display:flex;justify-content:space-between;color:#82938b;font-size:10px;margin-bottom:13px}.screen-bottom{margin:14px 0 0}.screen-bottom span:last-child{color:var(--lime)}.screen{border:1px solid #46534a;padding:7px;background:#222b28;border-radius:10px;box-shadow:0 35px 90px #0008;transform:perspective(1100px) rotateY(-4deg) rotateX(2deg)}.screen img{border-radius:4px}.hero-index{position:absolute;bottom:30px;left:0;color:#77867e}.hero-index span{color:var(--lime);margin-left:15px}.ticker{overflow:hidden;background:var(--lime);color:#172210;padding:15px 0}.ticker div{display:flex;align-items:center;justify-content:space-around;gap:32px;white-space:nowrap;font-size:13px;font-weight:800;letter-spacing:.08em}.ticker b{font-size:20px}.section{padding:130px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:60px;margin-bottom:70px}.section-head h2,.faq h2{font-size:clamp(42px,4.4vw,65px);margin:18px 0 0}.section-head>p{max-width:360px;color:var(--muted);margin:0 0 8px}.feature-list{border-top:1px solid var(--line)}.feature{display:grid;grid-template-columns:37% 63%;align-items:center;padding:70px 0;border-bottom:1px solid var(--line);gap:40px}.feature.reverse{grid-template-columns:63% 37%}.reverse .feature-copy{grid-column:2;grid-row:1}.reverse .feature-image{grid-column:1;grid-row:1}.feature-copy{max-width:350px}.number{color:#8a9b91}.feature h3,.start h3{font-size:34px;margin:20px 0 12px;letter-spacing:-.04em}.feature p,.start p,.guide-content p{color:var(--muted);font-size:15px;line-height:1.9}.feature-copy a{display:inline-block;color:var(--lime);font-size:13px;margin-top:18px}.feature-copy a span{margin-left:15px}.feature-image{background:#222b28;padding:18px;border:1px solid #303b38;border-radius:8px}.feature-image img{border-radius:3px;width:100%}.more{background:#1a2024;padding:110px 0}.compact{margin-bottom:55px}.compact h2{font-size:clamp(38px,4vw,58px)}.dot{color:var(--lime)}.more-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.more-grid article{padding:40px 40px 15px 0}.more-grid article+article{border-left:1px solid var(--line);padding-left:40px}.more-grid article>span{display:block;color:var(--lime);font-size:32px}.more-grid h3{font-size:20px;margin:24px 0 8px}.more-grid p{font-size:14px;color:var(--muted);max-width:300px}.start{background:#1b2723;border:1px solid #34463a;padding:35px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:50px}.start img{border-radius:4px}.start h3{font-size:27px}.hint{border-left:2px solid var(--lime);padding-left:14px;color:#d0e8c5!important;font-size:13px!important}.guide-layout{display:grid;grid-template-columns:230px 1fr;gap:90px;margin-top:100px}.guide-layout aside{align-self:start;position:sticky;top:30px;display:flex;flex-direction:column;gap:17px;font-size:14px;color:var(--muted)}.guide-layout aside span{font-weight:700;color:var(--text);padding-bottom:15px;border-bottom:1px solid var(--line)}.guide-layout aside a:hover{color:var(--lime)}.guide-content article{scroll-margin-top:30px;padding:0 0 75px;margin-bottom:75px;border-bottom:1px solid var(--line)}.guide-title{display:flex;align-items:baseline;gap:22px}.guide-title span{color:var(--lime);font-size:13px}.guide-title h3{font-size:30px;margin:0 0 20px}.guide-content ol{padding-left:22px;color:#d2dbd7;font-size:15px;line-height:2.2}.guide-content li::marker{color:var(--lime)}.guide-content img{margin-top:28px;border-radius:6px;border:1px solid var(--line);width:100%}.caption{font-size:12px!important}.faq{background:#1a2024;padding:125px 0}.faq-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:80px}.faq-layout>div>p{max-width:320px;color:var(--muted);font-size:14px}.faq-list{border-top:1px solid #3b4649}.faq details{border-bottom:1px solid #3b4649;padding:22px 0}.faq summary{cursor:pointer;list-style:none;font-size:16px;font-weight:600;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';color:var(--lime);font-size:23px;font-weight:400;line-height:1}.faq details[open] summary:after{content:'−'}.faq details p{color:var(--muted);font-size:14px;padding-right:30px}.end{text-align:center;padding:130px 0}.end h2{font-size:clamp(50px,6vw,80px)}.end .button{margin-top:20px}.footer{border-top:1px solid var(--line);padding:40px 0}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer-inner p,.footer small{font-size:12px;color:#819087}.footer-inner>div:nth-child(2){display:flex;gap:26px;color:#a1afb5;font-size:13px}.footer small{text-align:right}@media(max-width:800px){.wrap{width:min(100% - 40px,650px)}.header{height:70px;padding:0 20px;gap:20px}.header nav{gap:16px;font-size:12px}.nav-cta{display:none}.brand{font-size:28px}.hero{display:block;min-height:0;padding:68px 0 90px}.hero h1{font-size:clamp(48px,11vw,72px)}.hero-copy>p{font-size:15px}.hero-note{margin-top:38px}.hero-art{margin:60px 0 0}.hero-index{bottom:25px}.ticker div{justify-content:flex-start;width:max-content;gap:35px;padding-left:20px}.section{padding:80px 0}.section-head{display:block;margin-bottom:45px}.section-head>p{margin-top:24px}.feature,.feature.reverse{display:flex;flex-direction:column;align-items:stretch;gap:30px;padding:45px 0}.feature-copy{max-width:none}.feature-image{padding:8px}.feature h3{font-size:28px}.more{padding:80px 0}.more-grid{display:block}.more-grid article,.more-grid article+article{padding:27px 0;border-left:0;border-bottom:1px solid var(--line)}.more-grid article>span{font-size:25px}.more-grid h3{margin:12px 0 5px}.start{grid-template-columns:1fr;padding:22px;gap:25px}.guide-layout{display:block;margin-top:65px}.guide-layout aside{position:static;display:flex;flex-direction:row;overflow:auto;white-space:nowrap;margin-bottom:50px;gap:20px}.guide-layout aside span{display:none}.guide-content article{padding-bottom:50px;margin-bottom:50px}.faq{padding:80px 0}.faq-layout{display:block}.faq-list{margin-top:45px}.end{padding:90px 0}.footer-inner{flex-direction:column}.footer small{text-align:left}}@media(max-width:360px){.header nav{gap:9px;font-size:11px}.hero-actions{gap:16px}.text-link{font-size:12px}}
.inline-link{color:var(--lime);text-decoration:underline;text-underline-offset:3px}.contact{display:grid;grid-template-columns:1fr 330px;gap:70px;align-items:center;margin-top:120px;margin-bottom:0;padding:65px;background:#1a2024;border:1px solid #303a40}.contact h2{font-size:clamp(36px,4vw,58px);line-height:1.2;letter-spacing:-.05em;margin:22px 0}.contact h2 em{font-style:normal;color:var(--lime)}.contact-copy>p{color:var(--muted);font-size:15px}.contact-name{display:flex;flex-direction:column;gap:4px;margin-top:35px}.contact-name span,.contact-hint{font-size:12px!important;color:#a1afb5}.contact-name strong{font-size:17px}.contact-qr{margin:0;text-align:center}.contact-qr img{width:100%;height:auto;border-radius:4px}.contact-qr figcaption{font-size:12px;color:var(--muted);margin-top:12px}@media(max-width:800px){.header nav a[href="#contact"]{display:none}.contact{grid-template-columns:1fr;gap:30px;padding:28px;margin-top:80px}.contact-qr{width:min(100%,300px)}.footer-inner>div:nth-child(2){flex-wrap:wrap}}

/* Compact WeChat card */
.contact{grid-template-columns:minmax(0,1fr) 190px}.contact-qr{width:190px;justify-self:center}.contact-buy{margin-top:8px}.contact-name{margin-top:24px}@media(max-width:800px){.contact{grid-template-columns:1fr}.contact-qr{width:170px;justify-self:start}}