*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:#0c223d;background:#fff;line-height:1.75}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}svg{fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.045em;line-height:1.05}h2{letter-spacing:-.025em;line-height:1.16}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand img{width:36px;height:36px;object-fit:contain}.primary,.nav-download{display:inline-flex;align-items:center;justify-content:center;padding:13px 24px;border-radius:999px;font-weight:800}.secondary,.text-link{font-weight:750}.actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.site-footer img{width:34px;height:34px}.site-footer{padding:48px 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90px}.download-platforms{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.download-platform{padding:22px 0}.download-platform h3{font-size:24px;margin-bottom:6px}.download-platform a{font-weight:800}.download-choice,.download-systems,.download-after{padding:80px 0}.download-choice h2,.download-systems h2,.download-after h2{font-size:clamp(34px,4vw,56px);margin-bottom:18px}.download-systems{display:grid;grid-template-columns:1fr 1fr;gap:8vw;align-items:center}.system-words{display:grid;grid-template-columns:1fr 1fr;gap:18px;font-size:clamp(26px,3vw,44px);font-weight:850}.simple-hero{padding:150px max(8vw,40px) 90px;min-height:450px;display:flex;align-items:end}.simple-hero>div{max-width:850px}.simple-hero h1{font-size:clamp(46px,6vw,78px);margin:12px 0 22px}.simple-hero p{font-size:18px;max-width:760px}.inner-feature,.guide-step{padding:70px 0;display:grid;grid-template-columns:100px 1fr;gap:30px;align-items:start}.inner-feature h2,.guide-step h2{font-size:clamp(34px,4vw,52px);margin-bottom:12px}.guide-step b{font-size:38px;line-height:1}.faq-group{padding:65px 0}.faq-group h2{font-size:clamp(32px,4vw,50px);margin-bottom:26px}.faq-group-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 50px}.faq-group details{padding:12px 0}.faq-group summary{font-size:19px;font-weight:800;cursor:pointer}.faq-group p{margin:10px 0 0}.faq-end,.guide-end,.feature-platform-end{padding:80px 0}.faq-end h2,.guide-end h2,.feature-platform-end h2{font-size:clamp(34px,4vw,52px)}@media(max-width:820px){.inner-hero{grid-template-columns:1fr;padding:110px 24px 60px;min-height:auto}.inner-hero .inner-copy{order:1}.inner-hero figure{order:2}.download-platforms{grid-template-columns:1fr 1fr}.download-systems{grid-template-columns:1fr}.faq-group-list{grid-template-columns:1fr}.inner-main{padding-left:24px;padding-right:24px}.simple-hero{padding:120px 24px 70px}.inner-feature,.guide-step{grid-template-columns:64px 1fr}.site-footer{padding-left:24px;padding-right:24px}.download-choice,.download-systems,.download-after,.feature-main .inner-feature,.guide-main .guide-step,.faq-main .faq-group,.faq-end,.guide-end,.feature-platform-end{margin-left:-24px!important;margin-right:-24px!important;padding-left:24px!important;padding-right:24px!important}}body{background:#f7fbff;color:#112949}.wave-head{position:absolute;z-index:30;left:0;right:0;top:0;height:82px;padding:0 6vw;display:flex;align-items:center;justify-content:space-between;color:#fff}.wave-head nav{display:flex;gap:26px}.wave-head .nav-download{background:#fff;color:#0f6cdb}.wave-hero{min-height:95vh;position:relative;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;padding:120px 6vw 80px;overflow:hidden}.wave-hero-bg{position:absolute;inset:0;background:linear-gradient(rgba(6,32,78,.52),rgba(5,28,64,.78)),url('hero.jpg') center/cover}.wave-center{position:relative;z-index:2;max-width:980px}.wave-center h1{font-size:clamp(58px,8vw,104px);margin:12px 0 28px}.wave-center p{font-size:20px}.wave-center .actions{justify-content:center}.wave-center .primary{background:#1b83ff;color:#fff}.wave-center .secondary{color:#fff}.wave-main>section{padding:100px 7vw}.wave-main h2{font-size:clamp(40px,5vw,66px)}.wave-overview{background:radial-gradient(circle at 10% 10%,#dff1ff 0,transparent 38%),#fff}.wave-copy{max-width:820px;margin-bottom:55px}.wave-feature-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.wave-feature-flow .feature-item{display:block}.wave-feature-flow .feature-icon{margin-bottom:20px;color:#1b83ff}.wave-platform{background:#0e2f58;color:#fff;text-align:center}.wave-platform>p{max-width:760px;margin:0 auto 35px}.wave-platform .platforms{display:flex;justify-content:center;gap:7vw}.wave-platform .platforms span{font-size:26px}.wave-steps{background:#edf7ff;display:grid;grid-template-columns:.7fr 1.3fr;gap:7vw}.wave-step-line .step{display:grid;grid-template-columns:70px 1fr;gap:20px;margin-bottom:26px}.wave-reviews{background:#fff}.wave-review-line{display:flex;gap:40px;overflow:hidden}.wave-review-line .review{min-width:260px;display:block}.wave-review-line .review img{margin-bottom:14px}.wave-faq{background:#f4f9ff}.wave-faq-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 50px}.wave-faq-list summary{font-weight:800}.wave-faq .more{display:inline-block;margin-top:28px;color:#0f6cdb;font-weight:800}.site-footer{background:#092342;color:#fff}@media(max-width:900px){.wave-head nav{display:none}.wave-feature-flow{grid-template-columns:1fr 1fr}.wave-platform .platforms{display:grid;grid-template-columns:1fr 1fr}.wave-steps{grid-template-columns:1fr}.wave-review-line{display:grid;grid-template-columns:1fr}.wave-faq-list{grid-template-columns:1fr}.wave-main>section{padding:80px 24px}}.inner-hero{background:#061a34;color:#fff}.inner-hero 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/* ===== 2026-08-24 fullscreen launch correction ===== */
html,body{margin:0;padding:0;overflow-x:hidden}
body.fs-home{background:#fff}
.fs-header{position:absolute;left:0;right:0;top:0;z-index:50;height:86px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,5vw,84px);box-sizing:border-box;color:#fff;background:transparent!important}
.fs-brand{display:flex;align-items:center;text-decoration:none;color:#fff}
.fs-brand img{height:36px;width:auto;display:block;filter:brightness(0) invert(1)}
.fs-nav{display:flex;align-items:center;gap:30px}
.fs-nav a{color:#fff;text-decoration:none;font-size:15px;font-weight:650;text-shadow:0 1px 18px rgba(0,0,0,.3)}
.fs-nav .fs-nav-download{padding:12px 22px;border-radius:999px;background:#1686ff;color:#fff;font-weight:800;text-shadow:none}
.fs-hero{position:relative;width:100%;min-height:100vh;min-height:100svh;box-sizing:border-box;background-image:linear-gradient(90deg,rgba(2,12,29,.78),rgba(2,12,29,.24)),url('hero.jpg');background-size:cover;background-position:center;display:flex;overflow:hidden;color:#fff}
.fs-hero:after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(0,8,24,.18),rgba(0,8,24,.08) 55%,rgba(0,8,24,.34))}
.fs-copy{position:relative;z-index:2;max-width:720px;padding:118px 0 72px;box-sizing:border-box}
.fs-kicker{display:block;margin-bottom:18px;font-size:14px;font-weight:800;letter-spacing:.12em;color:#7bc2ff}
.fs-copy h1{margin:0 0 22px;font-size:clamp(52px,5.2vw,78px);line-height:1.06;letter-spacing:-.04em;color:#fff;max-width:820px}
.fs-copy p{margin:0;max-width:700px;font-size:clamp(18px,1.45vw,22px);line-height:1.85;color:rgba(255,255,255,.92)}
.fs-actions{display:flex;align-items:center;gap:22px;margin-top:30px;flex-wrap:wrap}
.fs-actions a{text-decoration:none;font-weight:800;font-size:16px}
.fs-actions .primary{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 27px;border-radius:999px;background:#1686ff;color:white}
.fs-actions .secondary{color:white}
.fs-points{display:flex;gap:30px;margin-top:34px;flex-wrap:wrap;color:rgba(255,255,255,.95);font-size:14px;font-weight:700}
.fs-points span{white-space:nowrap}
.sidebar-page{margin-left:0!important;width:100%!important;max-width:none!important}
.sidebar-main{margin-left:0!important;width:100%!important;max-width:none!important}
body.sidebar{padding-left:0!important;margin-left:0!important}

/* ten full-screen compositions, all without split screens */
body.fs-theme-1 .fs-hero{align-items:center;background-position:center 44%;background-image:linear-gradient(90deg,rgba(0,11,30,.88) 0%,rgba(0,11,30,.58) 42%,rgba(0,11,30,.12) 76%),url('hero.jpg')}
body.fs-theme-1 .fs-copy{margin-left:6vw;margin-right:auto}
body.fs-theme-1 .fs-actions .primary{background:#1686ff}

body.fs-theme-2 .fs-hero{align-items:center;justify-content:center;text-align:center;background-position:center 48%;background-image:linear-gradient(rgba(1,14,35,.58),rgba(1,14,35,.52)),url('hero.jpg')}
body.fs-theme-2 .fs-copy{margin:0 auto;max-width:820px;padding-left:30px;padding-right:30px}
body.fs-theme-2 .fs-copy p{margin-left:auto;margin-right:auto}
body.fs-theme-2 .fs-actions{justify-content:center}
body.fs-theme-2 .fs-points{justify-content:center}
body.fs-theme-2 .fs-actions .primary{background:#00a884}

body.fs-theme-3 .fs-hero{align-items:center;justify-content:flex-start;text-align:left;background-position:center;background-image:linear-gradient(270deg,rgba(0,12,30,.90) 0%,rgba(0,12,30,.58) 42%,rgba(0,12,30,.12) 76%),url('hero.jpg')}
body.fs-theme-3 .fs-copy{margin-left:7vw;margin-right:auto}
body.fs-theme-3 .fs-copy p{margin-left:0}
body.fs-theme-3 .fs-actions,body.fs-theme-3 .fs-points{justify-content:flex-start}
body.fs-theme-3 .fs-actions .primary{background:#7a5cff}

body.fs-theme-4 .fs-hero{align-items:flex-start;background-position:center 42%;background-image:linear-gradient(90deg,rgba(3,12,30,.85),rgba(3,12,30,.28) 65%),url('hero.jpg')}
body.fs-theme-4 .fs-copy{margin-left:7vw;padding-top:22vh;max-width:650px}
body.fs-theme-4 .fs-copy h1{font-size:clamp(50px,5vw,74px)}
body.fs-theme-4 .fs-actions .primary{background:#ff6542}

body.fs-theme-5 .fs-hero{align-items:center;background-position:center 50%;background-image:linear-gradient(90deg,rgba(3,17,42,.70),rgba(3,17,42,.40)),url('hero.jpg')}
body.fs-theme-5 .fs-copy{margin-left:10vw;max-width:760px}
body.fs-theme-5 .fs-kicker{color:#42e0c3}
body.fs-theme-5 .fs-actions .primary{background:#0abf9a}

body.fs-theme-6 .fs-hero{align-items:flex-start;justify-content:flex-start;text-align:left;background-position:center 46%;background-image:linear-gradient(270deg,rgba(2,11,28,.87),rgba(2,11,28,.26) 68%),url('hero.jpg')}
body.fs-theme-6 .fs-copy{margin-left:7vw;margin-right:auto;padding-top:20vh;max-width:700px}
body.fs-theme-6 .fs-copy p{margin-left:0}
body.fs-theme-6 .fs-actions,body.fs-theme-6 .fs-points{justify-content:flex-start}
body.fs-theme-6 .fs-actions .primary{background:#11aee8}

body.fs-theme-7 .fs-hero{align-items:center;justify-content:center;text-align:center;background-position:center;background-image:radial-gradient(circle at 50% 44%,rgba(3,14,34,.22),rgba(3,14,34,.78) 72%),url('hero.jpg')}
body.fs-theme-7 .fs-copy{max-width:880px;margin:0 auto;padding-left:24px;padding-right:24px}
body.fs-theme-7 .fs-copy h1{font-size:clamp(52px,5.5vw,82px)}
body.fs-theme-7 .fs-copy p{margin-left:auto;margin-right:auto;max-width:780px}
body.fs-theme-7 .fs-actions,body.fs-theme-7 .fs-points{justify-content:center}
body.fs-theme-7 .fs-actions .primary{background:#2577ff}

body.fs-theme-8 .fs-hero{align-items:center;background-position:center 52%;background-image:linear-gradient(90deg,rgba(1,9,24,.90) 0%,rgba(1,9,24,.52) 45%,rgba(1,9,24,.10) 76%),url('hero.jpg')}
body.fs-theme-8 .fs-copy{margin-left:6vw;max-width:640px}
body.fs-theme-8 .fs-copy h1{font-size:clamp(50px,4.8vw,70px)}
body.fs-theme-8 .fs-actions .primary{background:#2f7cff}

body.fs-theme-9 .fs-hero{align-items:center;justify-content:flex-start;background-position:center 45%;background-image:linear-gradient(270deg,rgba(0,10,25,.86),rgba(0,10,25,.35) 66%),url('hero.jpg')}
body.fs-theme-9 .fs-copy{margin-left:9vw;margin-right:auto;max-width:680px}
body.fs-theme-9 .fs-kicker{color:#5ee7c1}
body.fs-theme-9 .fs-actions .primary{background:#00b894}

body.fs-theme-10 .fs-hero{align-items:center;background-position:center 48%;background-image:linear-gradient(90deg,rgba(3,12,29,.84),rgba(3,12,29,.34) 62%,rgba(3,12,29,.10)),url('hero.jpg')}
body.fs-theme-10 .fs-copy{margin-left:8vw;max-width:720px}
body.fs-theme-10 .fs-copy h1{font-size:clamp(50px,5.1vw,76px)}
body.fs-theme-10 .fs-actions .primary{background:#ff7a3d}

@media(max-width:760px){
 .fs-header{height:72px;padding:0 18px}
 .fs-brand img{height:29px}
 .fs-nav{gap:12px}
 .fs-nav>a:not(.fs-nav-download){display:none}
 .fs-nav .fs-nav-download{padding:10px 16px;font-size:14px}
 .fs-hero,body[class*='fs-theme-'] .fs-hero{min-height:100svh;align-items:center!important;justify-content:flex-start!important;text-align:left!important;background-position:center!important}
 .fs-copy,body[class*='fs-theme-'] .fs-copy{margin:0!important;padding:96px 20px 46px!important;max-width:100%!important}
 .fs-copy h1,body[class*='fs-theme-'] .fs-copy h1{font-size:clamp(40px,12vw,54px)!important;line-height:1.08!important;max-width:100%!important}
 .fs-copy p,body[class*='fs-theme-'] .fs-copy p{font-size:17px;line-height:1.75;margin:0!important;max-width:100%!important}
 .fs-actions,body[class*='fs-theme-'] .fs-actions{justify-content:flex-start!important;margin-top:24px}
 .fs-points,body[class*='fs-theme-'] .fs-points{justify-content:flex-start!important;gap:14px 20px;margin-top:24px}
}