:root{--blue:#2576ef;--blue-dark:#145bc2;--dark:#151922;--muted:#667085;--bg:#f7f9fc;--line:#e6ebf2;--radius:20px;--shadow:0 18px 48px rgba(34,73,132,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--dark);background:#fff;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}code{background:#eef4ff;padding:.12em .42em;border-radius:6px;color:#174b99}button,input,textarea{font:inherit}.container{width:min(1120px,calc(100% - 40px));margin:auto}.nav{height:74px;border-bottom:1px solid rgba(230,235,242,.9);background:rgba(255,255,255,.92);backdrop-filter:blur(16px);position:sticky;top:0;z-index:30}.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center}.brand img{width:145px;height:44px;object-fit:contain;border-radius:0}.brand span{display:none}.navlinks{display:flex;gap:26px;align-items:center;font-size:14px;color:#475467}.navlinks a:hover,.footer a:hover,.text-link:hover{color:var(--blue)}.menu-toggle{display:none;border:0;background:transparent;font-size:24px;color:var(--dark)}
.hero{padding:74px 0 56px;background:radial-gradient(circle at 80% 10%,#e9f2ff 0,transparent 33%),linear-gradient(180deg,#f7faff,#fff)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}.eyebrow{display:inline-block;color:var(--blue);font-weight:800;letter-spacing:.02em}.hero h1{font-size:58px;line-height:1.12;margin:16px 0 20px;letter-spacing:-.035em}.hero p{font-size:18px;color:var(--muted);max-width:620px}.hero-device{max-height:610px;width:auto;margin:auto;filter:drop-shadow(0 30px 35px rgba(21,25,34,.14))}.metrics{display:flex;gap:34px;margin:30px 0}.metric strong{font-size:30px;display:block;line-height:1.1}.metric span{font-size:13px;color:var(--muted)}.buttons{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 22px;border-radius:999px;background:var(--blue);color:#fff;font-weight:750;border:1px solid var(--blue);transition:.2s}.btn:hover{background:var(--blue-dark);transform:translateY(-1px)}.btn.secondary{background:#fff;color:var(--blue)}.microcopy{font-size:12px!important;margin-top:12px!important}.section{padding:78px 0}.section.alt{background:var(--bg)}.section-title{text-align:center;max-width:720px;margin:0 auto 44px}.section-title h1,.section-title h2{font-size:40px;line-height:1.25;margin:8px 0 10px}.section-title p{color:var(--muted);margin:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;box-shadow:0 12px 38px rgba(35,69,119,.06)}.card .icon{width:58px;height:58px;object-fit:contain;margin-bottom:18px}.card h3{font-size:21px;margin:0 0 10px}.card p{color:var(--muted);margin:0}.visual-grid{display:grid;grid-template-columns:1fr 1fr;gap:66px;align-items:center}.visual-grid h2{font-size:40px;line-height:1.25;margin:10px 0 18px}.visual-grid p{color:var(--muted)}.checklist{padding:0;list-style:none}.checklist li{margin:10px 0;padding-left:30px;position:relative}.checklist li:before{content:'✓';position:absolute;left:0;color:var(--blue);font-weight:900}.text-link{color:var(--blue);font-weight:800}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.article-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;transition:.2s;box-shadow:0 10px 30px rgba(35,69,119,.06)}.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.article-card img{aspect-ratio:1.9/1;object-fit:cover}.article-card div{padding:22px}.article-card span,.article-list-card span{font-size:12px;color:var(--blue);font-weight:800}.article-card h3{font-size:20px;line-height:1.45;margin:7px 0}.article-card p{color:var(--muted);font-size:14px;margin:0}.center{text-align:center;margin-top:34px}.cta-section{padding-top:20px}.cta{border-radius:26px;background:linear-gradient(135deg,#edf5ff,#f8fbff);padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;border:1px solid #d9e9ff}.cta h2{font-size:36px;margin:8px 0}.cta p{color:var(--muted);margin:0}.promo{padding:64px 0;background:linear-gradient(180deg,#f4f8ff,#fff)}.pricebox{max-width:540px;margin:30px auto 60px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px;text-align:center;box-shadow:var(--shadow)}.price{font-size:68px;font-weight:900;color:var(--blue);line-height:1.2}.price small{font-size:30px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.stepnum{font-size:38px;color:var(--blue);font-weight:900}.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.shots figure{margin:0}.shots img{border:1px solid var(--line);border-radius:16px;background:#fff}.shots figcaption{text-align:center;margin-top:10px;color:var(--muted)}
.page-hero{padding:72px 0 50px;background:linear-gradient(180deg,#f5f9ff,#fff)}.page-hero h1{font-size:48px;margin:10px 0}.page-hero p{font-size:18px;color:var(--muted)}.article-list{display:grid;gap:24px}.article-list-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff}.article-list-card a{display:grid;grid-template-columns:320px 1fr;align-items:stretch}.article-list-card img{width:100%;height:100%;object-fit:cover}.article-list-card div{padding:28px}.article-list-card h2{font-size:25px;line-height:1.45;margin:6px 0}.article-list-card p{color:var(--muted);margin:0 0 10px}.article-list-card time{font-size:13px;color:#98a2b3}.article{background:#fff}.article-shell{max-width:880px;padding-top:30px;padding-bottom:78px}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin:12px 0 32px}.breadcrumbs a:hover{color:var(--blue)}.article-header{text-align:center}.article-header h1{font-size:48px;line-height:1.22;letter-spacing:-.025em;margin:14px 0}.article-header>p{font-size:18px;color:var(--muted);max-width:720px;margin:0 auto}.article-meta{display:flex;justify-content:center;gap:18px;color:#98a2b3;font-size:13px;margin:18px 0 30px}.article-header img{border-radius:24px;box-shadow:var(--shadow)}.article-content{font-size:17px;max-width:760px;margin:42px auto 0}.article-content h2{font-size:29px;line-height:1.35;margin:42px 0 14px}.article-content h3{font-size:21px;margin:28px 0 10px}.article-content p,.article-content li{color:#344054}.article-content li{margin:8px 0}.lead{font-size:19px;color:#344054!important}.callout,.article-note{padding:20px 22px;border-radius:16px;background:#eef5ff;border:1px solid #d6e7ff;margin:24px 0}.article-note{background:#f8fafc;border-color:var(--line);font-size:14px}.related{max-width:760px;margin:52px auto 0;padding-top:30px;border-top:1px solid var(--line)}.related h2{font-size:24px}.related div{display:grid;gap:10px}.related a{color:var(--blue);font-weight:700}.legal{padding:62px 0}.legal-wrap{max-width:820px}.legal h1{font-size:44px}.legal h2{margin-top:36px}.legal p,.legal li{color:#344054}.updated{color:#98a2b3!important}.contact-section{padding:80px 0;background:linear-gradient(180deg,#f5f9ff,#fff);min-height:70vh}.contact-card{max-width:680px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:42px;box-shadow:var(--shadow);text-align:center}.contact-card>img{width:180px;height:auto;margin:0 auto 18px}.contact-card h1{font-size:42px;margin:8px 0}.contact-card p{color:var(--muted)}.contact-card dl{margin:34px 0 0;text-align:left}.contact-card dl div{display:grid;grid-template-columns:120px 1fr;padding:14px 0;border-top:1px solid var(--line)}.contact-card dt{font-weight:700}.contact-card dd{margin:0;color:var(--blue)}
.footer{padding:52px 0 24px;border-top:1px solid var(--line);background:#fbfcfe;color:var(--muted);font-size:14px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:36px}.footer strong{display:block;color:var(--dark);font-size:18px}.footer p{max-width:420px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-grid>div:last-child{display:flex;flex-direction:column;gap:8px}.copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:34px;color:#98a2b3}
@media(max-width:900px){.hero-grid,.visual-grid{grid-template-columns:1fr}.hero h1{font-size:46px}.hero-device{max-height:500px}.cards,.article-grid,.steps,.shots{grid-template-columns:1fr}.article-list-card a{grid-template-columns:1fr}.article-list-card img{max-height:280px}.footer-grid{grid-template-columns:1fr 1fr}.cta{align-items:flex-start;flex-direction:column}.menu-toggle{display:block}.navlinks{display:none;position:absolute;top:74px;left:20px;right:20px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.navlinks.open{display:flex}}
@media(max-width:600px){.container{width:min(100% - 28px,1120px)}.hero{padding-top:52px}.hero h1{font-size:39px}.hero p{font-size:16px}.metrics{gap:18px}.metric strong{font-size:25px}.section{padding:58px 0}.section-title h2,.visual-grid h2{font-size:32px}.article-header h1{font-size:35px}.article-content{font-size:16px}.article-content h2{font-size:25px}.page-hero h1{font-size:38px}.footer-grid{grid-template-columns:1fr}.contact-card{padding:30px 22px}.contact-card dl div{grid-template-columns:1fr;gap:4px}.price{font-size:58px}}

/* Liquid glass visual system */
:root{--blue:#4d69f5;--blue-dark:#3150d7;--dark:#101528;--muted:#65708a;--bg:#eef4ff;--line:rgba(139,167,226,.28);--radius:24px;--glass:rgba(255,255,255,.56);--glass-strong:rgba(255,255,255,.74);--glass-border:rgba(255,255,255,.82);--glass-shadow:0 24px 70px rgba(46,74,142,.14),inset 0 1px 0 rgba(255,255,255,.88),inset 0 -1px 0 rgba(94,126,210,.10);--shadow:var(--glass-shadow)}
html{background:#edf4ff}
body{min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 7% 6%,rgba(111,203,255,.34),transparent 26rem),radial-gradient(circle at 92% 18%,rgba(121,113,255,.25),transparent 30rem),radial-gradient(circle at 46% 82%,rgba(132,223,255,.18),transparent 34rem),linear-gradient(145deg,#f8fbff 0%,#eef4ff 48%,#f8fbff 100%);background-attachment:fixed}
body:before,body:after{content:"";position:fixed;z-index:-1;border-radius:50%;filter:blur(12px);pointer-events:none}
body:before{width:260px;height:260px;left:-80px;top:38%;background:rgba(111,202,255,.22)}
body:after{width:320px;height:320px;right:-120px;bottom:5%;background:rgba(103,92,255,.15)}
img[src$="logo-rusuo.png"],img[src$="logo-rusuo-glass.png"]{content:url("../images/logo-rusuo-integrated.png")}
.nav{height:78px;border-bottom:1px solid rgba(255,255,255,.76);background:rgba(245,249,255,.64);box-shadow:0 10px 34px rgba(53,76,132,.08),inset 0 -1px 0 rgba(132,161,224,.12);backdrop-filter:blur(28px) saturate(165%);-webkit-backdrop-filter:blur(28px) saturate(165%)}
.brand img{width:145px;height:44px;filter:drop-shadow(0 7px 16px rgba(55,81,177,.18))}
.navlinks{gap:8px}
.navlinks a{position:relative;padding:8px 14px;border:1px solid transparent;border-radius:999px;transition:color .24s ease,border-color .24s ease,background .24s ease,box-shadow .24s ease}
.navlinks a:hover{color:#263d9f;border-color:rgba(255,255,255,.86);background:rgba(255,255,255,.54);box-shadow:0 8px 24px rgba(66,91,151,.11),inset 0 1px 0 rgba(255,255,255,.9)}
.menu-toggle{width:44px;height:44px;border:1px solid var(--glass-border);border-radius:15px;background:rgba(255,255,255,.48);box-shadow:var(--glass-shadow)}
main,.article{background:transparent}
.hero,.promo,.page-hero,.contact-section{position:relative;background:transparent}
.hero:before,.promo:before,.page-hero:before,.contact-section:before{content:"";position:absolute;inset:22px max(20px,calc((100vw - 1180px)/2));z-index:-1;border:1px solid rgba(255,255,255,.76);border-radius:44px;background:linear-gradient(135deg,rgba(255,255,255,.62),rgba(255,255,255,.22));box-shadow:var(--glass-shadow);backdrop-filter:blur(22px) saturate(150%);-webkit-backdrop-filter:blur(22px) saturate(150%)}
.hero{padding-top:82px}
.hero h1,.section-title h1,.section-title h2,.page-hero h1,.article-header h1,.legal h1,.contact-card h1{color:#10162c;text-shadow:0 1px 0 rgba(255,255,255,.86)}
.eyebrow{padding:5px 11px;border:1px solid rgba(255,255,255,.78);border-radius:999px;background:rgba(255,255,255,.48);box-shadow:inset 0 1px 0 rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.hero-device{padding:10px;border:1px solid rgba(255,255,255,.82);border-radius:38px;background:rgba(255,255,255,.28);box-shadow:0 34px 80px rgba(38,62,124,.17),inset 0 1px 0 rgba(255,255,255,.92);filter:none;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.metrics{padding:18px 22px;width:max-content;max-width:100%;border:1px solid rgba(255,255,255,.8);border-radius:22px;background:rgba(255,255,255,.43);box-shadow:0 14px 38px rgba(45,70,133,.09),inset 0 1px 0 rgba(255,255,255,.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.metric strong{color:#151d3a}
.section.alt,.footer{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.6);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}
.card,.article-card,.article-list-card,.cta,.contact-card,.legal-wrap,.article-content,.related,.plan-card{border:1px solid var(--glass-border);background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(255,255,255,.32));box-shadow:var(--glass-shadow);backdrop-filter:blur(22px) saturate(145%);-webkit-backdrop-filter:blur(22px) saturate(145%)}
.card,.article-card,.article-list-card,.cta,.contact-card,.legal-wrap,.article-content,.plan-card{border-radius:26px}
.article-card,.article-list-card{overflow:hidden}
.article-card img,.article-list-card img,.article-header img,.shots img{border:1px solid rgba(255,255,255,.78);box-shadow:0 18px 46px rgba(39,60,112,.14)}
.article-content{padding:34px 38px}
.related{padding:28px;border-radius:22px}
.legal-wrap{padding:44px 50px;margin-top:30px;margin-bottom:70px}
.footer{box-shadow:inset 0 1px 0 rgba(255,255,255,.78)}
.footer-grid>div{padding:18px;border-radius:20px}
.btn{position:relative;border-color:rgba(255,255,255,.48);background:linear-gradient(155deg,#6987ff 0%,#4a66f0 46%,#354fce 100%);box-shadow:0 14px 34px rgba(59,83,199,.26),inset 0 1px 0 rgba(255,255,255,.7),inset 0 -1px 0 rgba(31,51,151,.28);text-shadow:0 1px 1px rgba(22,39,125,.26)}
.btn:hover{background:linear-gradient(155deg,#7e99ff,#526df3 48%,#3d55d3);box-shadow:0 18px 42px rgba(59,83,199,.32),inset 0 1px 0 rgba(255,255,255,.82)}
.btn.secondary{color:#3855c9;border-color:rgba(255,255,255,.88);background:rgba(255,255,255,.52);box-shadow:0 12px 30px rgba(55,79,140,.12),inset 0 1px 0 rgba(255,255,255,.94);text-shadow:none;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.btn.secondary:hover{background:rgba(255,255,255,.72)}
.glass-interactive{--mx:50%;--my:50%;position:relative;isolation:isolate;overflow:hidden;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.glass-interactive:before{content:"";position:absolute;z-index:0;inset:-1px;pointer-events:none;background:radial-gradient(180px circle at var(--mx) var(--my),rgba(255,255,255,.72),rgba(183,221,255,.24) 34%,transparent 68%);opacity:0;transition:opacity .22s ease;mix-blend-mode:screen}
.glass-interactive:hover:before{opacity:1}
.glass-interactive>*{position:relative;z-index:1}
.card.glass-interactive:hover,.plan-card.glass-interactive:hover,.article-card.glass-interactive:hover,.article-list-card.glass-interactive:hover,.contact-card.glass-interactive:hover,.cta.glass-interactive:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.96);box-shadow:0 30px 78px rgba(42,67,132,.19),inset 0 1px 0 rgba(255,255,255,.96)}
.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;max-width:980px;margin:0 auto 24px}
.plan-card{position:relative;padding:34px;overflow:hidden}
.plan-card.featured{background:linear-gradient(145deg,rgba(238,246,255,.84),rgba(213,226,255,.48));border-color:rgba(198,219,255,.94);box-shadow:0 30px 82px rgba(56,81,175,.22),inset 0 1px 0 rgba(255,255,255,.96)}
.plan-ribbon{position:absolute;top:18px;right:18px;padding:5px 12px;border:1px solid rgba(255,255,255,.78);border-radius:999px;background:linear-gradient(145deg,#718dff,#4965e9);color:#fff;font-size:12px;font-weight:800;box-shadow:0 8px 22px rgba(58,81,187,.24)}
.plan-head{margin-bottom:24px}
.plan-head h2{font-size:32px;line-height:1.2;margin:14px 0 8px}
.plan-head p{margin:0;color:var(--muted)}
.plan-badge{display:inline-flex;padding:6px 13px;border-radius:999px;color:#3855c9;font-weight:900;letter-spacing:.08em;background:rgba(255,255,255,.6);border:1px solid rgba(255,255,255,.92);box-shadow:inset 0 1px 0 #fff}
.plan-prices{display:grid;gap:10px;margin-bottom:24px}
.plan-price{display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:12px;padding:13px 16px;border:1px solid rgba(255,255,255,.8);border-radius:18px;background:rgba(255,255,255,.38);box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}
.plan-price.recommended{background:linear-gradient(135deg,rgba(225,237,255,.8),rgba(255,255,255,.56));border-color:rgba(183,207,255,.88)}
.plan-price span{color:#526078;font-weight:700}
.plan-price strong{font-size:28px;line-height:1;color:#172250}
.plan-price strong small{font-size:15px;margin-right:2px}
.plan-price em{font-size:12px;font-style:normal;color:#7b879e}
.plan-features{margin:0 0 26px;padding:0;list-style:none;color:#445069}
.plan-features li{position:relative;padding-left:26px;margin:10px 0}
.plan-features li:before{content:"✓";position:absolute;left:0;color:#4c68ed;font-weight:900}
.plan-card .btn{width:100%}
.pricing-page .steps{grid-template-columns:repeat(4,1fr)}
.pricing-page .stepnum{color:#5974ef;text-shadow:0 1px 0 #fff}
.pricing-page .promo{padding-bottom:82px}
@media(max-width:900px){.nav{height:74px}.navlinks{top:74px;background:rgba(246,250,255,.82);border-color:rgba(255,255,255,.86);box-shadow:var(--glass-shadow);backdrop-filter:blur(26px);-webkit-backdrop-filter:blur(26px)}.navlinks a{width:100%}.pricing-page .steps{grid-template-columns:repeat(2,1fr)}.article-content{padding:28px}.legal-wrap{padding:34px}.hero:before,.promo:before,.page-hero:before,.contact-section:before{inset:14px;border-radius:32px}}
@media(max-width:680px){.pricing-grid{grid-template-columns:1fr}.plan-card{padding:26px}.pricing-page .steps{grid-template-columns:1fr}.plan-price{grid-template-columns:58px 1fr auto}.metrics{width:100%;justify-content:space-between;padding:16px}.article-content,.legal-wrap{padding:24px 20px}.hero:before,.promo:before,.page-hero:before,.contact-section:before{inset:8px;border-radius:26px}.brand img{width:145px;height:44px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.glass-interactive:hover{transform:none!important}}

/* Integrated transparent brand lockup */
.brand{padding:5px 10px 5px 7px;border:1px solid rgba(255,255,255,.58);border-radius:19px;background:rgba(255,255,255,.16);box-shadow:inset 0 1px 0 rgba(255,255,255,.62);transition:background .24s ease,border-color .24s ease,box-shadow .24s ease,transform .24s ease}
.brand:hover{background:rgba(255,255,255,.46);border-color:rgba(255,255,255,.92);box-shadow:0 12px 30px rgba(55,77,139,.12),inset 0 1px 0 rgba(255,255,255,.94);transform:translateY(-1px)}
.brand img{width:132px;height:40px;object-fit:contain;filter:drop-shadow(0 4px 8px rgba(49,67,156,.12))}
.contact-card>img{width:168px;height:auto;padding:9px 13px;margin-bottom:22px;border:1px solid rgba(255,255,255,.72);border-radius:22px;background:rgba(255,255,255,.24);box-shadow:0 14px 34px rgba(52,75,137,.10),inset 0 1px 0 rgba(255,255,255,.9);filter:drop-shadow(0 4px 8px rgba(49,67,156,.10))}
@media(max-width:680px){.brand{padding:4px 8px 4px 6px;border-radius:17px}.brand img{width:124px;height:38px}.contact-card>img{width:154px}}

/* Keep the refreshed brand lockup visible when wide article covers are cropped into cards. */
.article-list-card img,.article-card img{object-position:left center}