:root{--a:#17A3C7;--b:#506FF4;--c:#9465ED;--soft:#F0FAFD;--ink:#123844;--muted:#55717A;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#FFFFFF;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.85}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.98);box-shadow:0 1px 0 rgba(20,35,65,.06)}.head{min-height:72px;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center}.brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:900}.brand img{width:42px;height:42px}.brand span{color:var(--ink)}nav{display:flex;justify-content:center;gap:26px}nav a{font-size:14px;font-weight:800;color:var(--muted)}nav a.active,nav a:hover{color:var(--a)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:51px;padding:0 27px;border-radius:999px;background:var(--a);color:#fff;font-weight:900}.btn.secondary{background:var(--b)}
.hero{padding:82px 0;background:linear-gradient(135deg,#F0FAFD,#FFFFFF)}.hero-grid{display:grid;gap:64px;align-items:center}.hero h1{margin:0;font-size:clamp(52px,5.2vw,75px);line-height:1.04;letter-spacing:-.05em;color:var(--ink)}.hero h1 span{color:var(--a)}.hero p{font-size:17px;line-height:1.95;color:var(--muted);margin:24px 0 0}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:29px}.hero-media img{max-height:555px;object-fit:contain;margin:auto}
.platforms{padding:31px 0;background:#FFFFFF}.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.platform-item strong{display:block;font-size:20px;color:var(--ink)}.platform-item span{font-size:13px;color:var(--muted)}
.section{padding:90px 0}.alt{background:#F8FAFD}.section h2{font-size:clamp(40px,4.3vw,57px);line-height:1.12;margin:0 0 14px;color:var(--ink);letter-spacing:-.035em}.lead{max-width:820px;color:var(--muted);font-size:16px}.features{display:grid;gap:50px;margin-top:46px}.feature{display:grid;grid-template-columns:.82fr 1.18fr;gap:55px;align-items:center;margin:58px 0}.feature-icon img{width:290px;margin:auto}.feature-copy small{font-size:13px;font-weight:900;color:var(--c)}.feature-copy h3{font-size:34px;line-height:1.3;margin:7px 0 14px;color:var(--ink)}.feature-copy p{color:var(--muted);font-size:16px}
.download-band{padding:75px 0;background:linear-gradient(135deg,var(--a),var(--b));color:#fff}.download-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}.download-band h2{font-size:49px;line-height:1.12;margin:0;color:#fff}.download-band p{color:rgba(255,255,255,.86)}.download-options{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.download-option strong{display:block;font-size:20px}.download-option span{font-size:13px;color:rgba(255,255,255,.76)}
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:42px;margin-top:40px}.scene img{width:92px}.scene h3{font-size:22px;color:var(--ink);margin:10px 0}.scene p{color:var(--muted)}
.inner-hero{padding:66px 0;background:linear-gradient(135deg,#F0FAFD,#FFFFFF)}.inner-grid{display:grid;grid-template-columns:1fr .9fr;gap:58px;align-items:center}.inner-grid h1{font-size:clamp(43px,4.9vw,62px);line-height:1.08;color:var(--ink);margin:0}.inner-grid p{color:var(--muted);font-size:17px}.inner-grid img{max-height:390px;object-fit:contain;margin:auto}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:58px;align-items:start}.article h2{font-size:29px;color:var(--ink);margin:40px 0 12px}.article p,.article li{color:var(--muted);font-size:16px;line-height:2}.article ol{padding-left:24px}.side{position:sticky;top:95px}.side a{display:block;padding:9px 0;color:var(--muted)}.faq-list{display:grid;gap:26px}.faq h3{font-size:22px;color:var(--ink);margin:0}.faq p{color:var(--muted)}
footer{padding-top:50px;background:#08152C;color:#D7E0EF}.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:42px;padding-bottom:35px}.foot .brand span{color:#fff}.foot p,.foot a{color:#9DABC1;font-size:13px}.foot a{display:block;padding:5px 0}.copyright{text-align:center;padding:18px;color:#7F8DA4}
@media(max-width:950px){nav{display:none}.hero-grid,.inner-grid,.article-layout,.feature,.download-grid{grid-template-columns:1fr!important}.platform-grid{grid-template-columns:repeat(2,1fr)}.scenes{grid-template-columns:1fr}.foot{grid-template-columns:1fr}.hero h1{font-size:47px}}
.hero-grid{grid-template-columns:.95fr 1.05fr}.features{grid-template-columns:1.15fr .85fr;gap:35px}.feature{grid-template-columns:1fr;margin:0}.feature:first-child{grid-row:span 3}.feature-icon img{width:215px;margin-left:0}