/* roulang page: index */
:root{
            --navy:#102a43;
            --blue:#1f67d2;
            --blue-dark:#124a9e;
            --sky:#eaf3ff;
            --ink:#152536;
            --muted:#6c7d90;
            --line:#dbe5ef;
            --paper:#ffffff;
            --soft:#f5f8fc;
            --gold:#d99625;
            --green:#138a67;
            --radius:16px;
            --shadow:0 16px 38px rgba(22,61,102,.10);
            --shadow-sm:0 8px 20px rgba(22,61,102,.08);
            --container:1180px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
            font-size:16px;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        img{display:block;max-width:100%}
        a{color:inherit;text-decoration:none}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(31,103,210,.32);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .eyebrow{
            display:inline-flex;
            align-items:center;
            gap:8px;
            color:var(--blue);
            font-weight:750;
            font-size:13px;
            letter-spacing:.04em;
            text-transform:uppercase;
        }
        .eyebrow::before{content:"";width:24px;height:2px;background:var(--blue)}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{line-height:1.2;letter-spacing:0}
        h1{font-size:clamp(38px,5vw,68px);margin-bottom:22px}
        h2{font-size:clamp(28px,3vw,42px);margin-bottom:15px}
        h3{font-size:19px;margin-bottom:8px}
        .section{padding:92px 0}
        .section--soft{background:var(--soft)}
        .section--blue{background:var(--navy);color:#fff}
        .section-head{max-width:720px;margin-bottom:38px}
        .section-head p{color:var(--muted);margin:0;font-size:17px}
        .section--blue .section-head p{color:#b8c8db}
        .topbar{
            background:#f1f6fc;
            border-bottom:1px solid var(--line);
            color:var(--muted);
            font-size:13px;
        }
        .topbar-inner{min-height:35px;display:flex;align-items:center;justify-content:space-between}
        .header{
            position:sticky;
            top:0;
            z-index:20;
            background:rgba(255,255,255,.94);
            border-bottom:1px solid rgba(219,229,239,.9);
            backdrop-filter:blur(14px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
        .brand-mark{
            width:39px;height:39px;border-radius:11px;
            background:var(--navy);color:#fff;
            display:grid;place-items:center;
            font-weight:800;font-size:17px;
            box-shadow:0 7px 15px rgba(16,42,67,.18);
        }
        .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{
            padding:9px 13px;
            border-radius:9px;
            color:#52677c;
            font-size:14px;
            font-weight:650;
            transition:.2s ease;
        }
        .nav a:hover,.nav a.active{color:var(--blue);background:var(--sky)}
        .nav .nav-cta{color:#fff;background:var(--blue);padding:10px 17px;margin-left:8px}
        .nav .nav-cta:hover{background:var(--blue-dark);color:#fff}
        .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:9px;width:42px;height:40px}
        .hero{
            position:relative;
            overflow:hidden;
            padding:78px 0 76px;
            background:#f8fbff;
            border-bottom:1px solid var(--line);
        }
        .hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:72px;align-items:center}
        .hero h1{max-width:690px;color:var(--navy)}
        .hero h1 em{font-style:normal;color:var(--blue)}
        .hero-lead{max-width:650px;color:#52677c;font-size:18px;line-height:1.9;margin-bottom:29px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            min-height:47px;padding:0 19px;border-radius:10px;
            border:1px solid transparent;font-weight:750;font-size:14px;
            transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
        }
        .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
        .btn-primary{background:var(--blue);color:#fff}
        .btn-primary:hover{background:var(--blue-dark)}
        .btn-light{background:#fff;border-color:var(--line);color:var(--navy)}
        .btn-light:hover{border-color:#aac5e7;color:var(--blue)}
        .hero-note{display:flex;gap:20px;margin-top:31px;color:var(--muted);font-size:13px}
        .hero-note span{display:flex;align-items:center;gap:7px}
        .hero-note i{width:7px;height:7px;border-radius:50%;background:var(--green)}
        .hero-feature{position:relative;min-height:455px}
        .hero-image{width:79%;height:390px;object-fit:cover;border-radius:18px;box-shadow:var(--shadow);margin-left:auto}
        .feature-panel{
            position:absolute;left:0;bottom:0;width:270px;
            background:#fff;border:1px solid var(--line);border-radius:15px;
            padding:20px;box-shadow:var(--shadow);
        }
        .feature-panel .panel-label{font-size:12px;color:var(--muted);margin-bottom:8px}
        .feature-panel strong{display:block;font-size:21px;color:var(--navy);margin-bottom:12px}
        .meter{height:7px;background:#e8eff7;border-radius:9px;overflow:hidden}
        .meter span{display:block;height:100%;width:82%;background:var(--blue);border-radius:9px}
        .feature-panel small{display:flex;justify-content:space-between;color:var(--muted);margin-top:8px}
        .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
        .stat{background:#fff;padding:25px 26px}
        .stat strong{display:block;color:var(--navy);font-size:29px;line-height:1.1;margin-bottom:5px}
        .stat span{color:var(--muted);font-size:13px}
        .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .info-card{
            background:#fff;border:1px solid var(--line);border-radius:var(--radius);
            padding:25px;box-shadow:var(--shadow-sm);transition:.22s ease;
        }
        .info-card:hover,.content-card:hover,.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .info-icon{
            width:42px;height:42px;border-radius:11px;background:var(--sky);color:var(--blue);
            display:grid;place-items:center;font-size:18px;font-weight:800;margin-bottom:18px
        }
        .info-card p{color:var(--muted);font-size:14px;margin:0}
        .split{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
        .split-copy p{color:var(--muted);font-size:16px}
        .content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
        .content-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:14px;transition:.22s ease}
        .content-card img{width:100%;height:190px;object-fit:cover}
        .content-body{padding:17px}
        .content-body h3{font-size:17px}
        .content-body p{color:var(--muted);font-size:13px;margin:0 0 13px;line-height:1.65}
        .meta{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px}
        .badge{display:inline-flex;align-items:center;border-radius:5px;padding:3px 8px;font-size:11px;font-weight:800;color:var(--blue);background:var(--sky)}
        .badge.green{color:var(--green);background:#eaf8f3}
        .badge.gold{color:#9b6814;background:#fff5dc}
        .rating{color:var(--gold);font-weight:800}
        .dark-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .dark-item{padding:28px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.06);border-radius:14px}
        .dark-item h3{color:#fff}
        .dark-item p{color:#b8c8db;font-size:14px;margin:0}
        .timeline{border-left:2px solid #cfe0f2;margin-left:8px;padding-left:30px}
        .timeline-item{position:relative;padding:0 0 30px}
        .timeline-item:last-child{padding-bottom:0}
        .timeline-item::before{content:"";position:absolute;left:-38px;top:7px;width:12px;height:12px;background:#fff;border:3px solid var(--blue);border-radius:50%}
        .timeline-date{color:var(--blue);font-size:12px;font-weight:800;margin-bottom:6px}
        .timeline-item h3{margin-bottom:5px}
        .timeline-item p{color:var(--muted);font-size:14px;margin:0}
        .category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .category-card{border:1px solid var(--line);padding:23px;background:#fff;border-radius:13px;transition:.2s ease}
        .category-card:hover{border-color:#9bbfe8;box-shadow:var(--shadow-sm)}
        .category-card h3{display:flex;align-items:center;justify-content:space-between}
        .category-card h3 span{color:var(--blue);font-size:15px}
        .category-card p{font-size:14px;color:var(--muted);margin:0 0 14px}
        .text-link{color:var(--blue);font-weight:750;font-size:13px}
        .ranking{display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:start}
        .rank-list{border-top:1px solid var(--line)}
        .rank-row{display:grid;grid-template-columns:38px 1fr 95px 62px;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
        .rank-no{font-size:20px;font-weight:850;color:#afbdcc}
        .rank-row:nth-child(-n+3) .rank-no{color:var(--blue)}
        .rank-title{font-weight:700}
        .rank-type{font-size:12px;color:var(--muted)}
        .rank-score{font-weight:800;color:var(--gold);font-size:13px}
        .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .news-item{display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;transition:.2s ease}
        .news-item img{height:88px;width:112px;object-fit:cover;border-radius:9px}
        .news-item h3{font-size:16px;margin-bottom:5px}
        .news-item time{font-size:12px;color:var(--muted)}
        .subscribe{
            display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
            background:var(--sky);border:1px solid #cfe1f4;border-radius:18px;padding:37px 42px;
        }
        .subscribe h2{margin-bottom:8px}
        .subscribe p{margin:0;color:var(--muted);font-size:14px}
        .subscribe-form{display:flex;gap:9px}
        .subscribe-form input{min-width:0;flex:1;border:1px solid #c6d8ea;border-radius:9px;background:#fff;padding:0 15px;color:var(--ink);height:47px}
        .subscribe-form input::placeholder{color:#9aabba}
        .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:17px 20px}
        summary{cursor:pointer;font-weight:750;color:var(--navy)}
        details p{color:var(--muted);font-size:14px;margin:12px 0 0}
        .footer{background:#0c2035;color:#b8c8d8;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
        .footer .brand-name{color:#fff}
        .footer h3{font-size:14px;color:#fff;margin-bottom:13px}
        .footer p{font-size:13px;line-height:1.8;margin:13px 0 0}
        .footer a{display:block;font-size:13px;margin:7px 0;color:#b8c8d8;transition:.2s}
        .footer a:hover{color:#fff}
        .footer-bottom{padding-top:19px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;display:flex;justify-content:space-between;gap:15px}
        .age-note{color:#8fa7bd}
        @media(max-width:1024px){
            .hero-grid{gap:35px}
            .content-grid{grid-template-columns:repeat(3,1fr)}
            .hero-image{width:86%}
        }
        @media(max-width:768px){
            .container{width:min(100% - 34px,var(--container))}
            .topbar-inner{justify-content:center}
            .topbar-inner span:last-child{display:none}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .nav{
                display:none;position:absolute;left:17px;right:17px;top:76px;
                padding:10px;background:#fff;border:1px solid var(--line);border-radius:12px;
                box-shadow:var(--shadow);flex-direction:column;align-items:stretch
            }
            .nav.open{display:flex}
            .nav a{padding:11px 13px}
            .nav .nav-cta{margin:4px 0 0;text-align:center}
            .hero{padding:55px 0 55px}
            .hero-grid,.split,.ranking,.subscribe{grid-template-columns:1fr}
            .hero-feature{min-height:360px;margin-top:8px}
            .hero-image{height:310px;width:88%}
            .section{padding:68px 0}
            .stats{grid-template-columns:repeat(2,1fr)}
            .feature-grid,.category-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
            .content-grid{grid-template-columns:repeat(2,1fr)}
            .dark-grid{grid-template-columns:1fr}
            .subscribe{padding:28px}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:520px){
            body{font-size:15px}
            h1{font-size:38px}
            .hero-lead{font-size:16px}
            .hero-note{gap:11px;flex-direction:column}
            .stats,.feature-grid,.category-grid,.content-grid,.news-grid,.faq-list{grid-template-columns:1fr}
            .stat{padding:20px}
            .hero-feature{min-height:330px}
            .hero-image{height:275px;width:92%}
            .feature-panel{width:235px;padding:16px}
            .content-card img{height:220px}
            .rank-row{grid-template-columns:30px 1fr 48px}
            .rank-row .badge{display:none}
            .rank-score{text-align:right}
            .subscribe-form{flex-direction:column}
            .subscribe-form .btn{width:100%}
            .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
            .footer-grid>div:first-child{grid-column:1/-1}
            .footer-bottom{flex-direction:column}
        }

/* roulang page: category1 */
:root{
 --navy:#102a43;
 --blue:#1f67d2;
 --blue-dark:#124a9e;
 --sky:#eaf3ff;
 --ink:#152536;
 --muted:#6c7d90;
 --line:#dbe5ef;
 --paper:#fff;
 --soft:#f5f8fc;
 --gold:#d99625;
 --green:#138a67;
 --radius:16px;
 --shadow:0 16px 38px rgba(22,61,102,.10);
 --shadow-sm:0 8px 20px rgba(22,61,102,.08);
 --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.topbar{background:#f1f6fc;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
.topbar-inner{min-height:35px;display:flex;align-items:center;justify-content:space-between}
.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(219,229,239,.9);backdrop-filter:blur(14px)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{width:39px;height:39px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;box-shadow:0 7px 15px rgba(16,42,67,.18)}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:9px 13px;border-radius:9px;color:#52677c;font-size:14px;font-weight:650;transition:.2s ease}
.nav a:hover,.nav a.active{color:var(--blue);background:var(--sky)}
.nav .nav-cta{color:#fff;background:var(--blue);padding:10px 17px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue-dark);color:#fff}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:9px;width:42px;height:40px}
.hero{position:relative;min-height:560px;overflow:hidden;color:#fff;background:var(--navy)}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.47}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,29,49,.9),rgba(16,42,67,.6) 50%,rgba(16,42,67,.35))}
.hero-content{position:relative;z-index:1;min-height:560px;display:flex;align-items:center}
.hero-copy{max-width:700px;padding:78px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#8fc1ff;font-weight:750;font-size:13px;letter-spacing:.04em}
.eyebrow:before{content:"";width:24px;height:2px;background:#8fc1ff}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5vw,70px);line-height:1.12;letter-spacing:-.025em;margin:17px 0 20px}
h1 em{font-style:normal;color:#75b3ff}
.hero-copy p{max-width:650px;color:#d8e7f7;font-size:18px;line-height:1.9;margin-bottom:29px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:47px;padding:0 19px;border-radius:10px;border:1px solid transparent;font-weight:750;font-size:14px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#3880e6}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:#eaf3ff;color:var(--blue)}
.play-button{position:absolute;right:10%;top:50%;transform:translateY(-50%);width:82px;height:82px;border:1px solid rgba(255,255,255,.65);border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:25px;display:grid;place-items:center;backdrop-filter:blur(8px);transition:.2s}
.play-button:hover{background:#fff;color:var(--blue);transform:translateY(-50%) scale(1.05)}
.section{padding:88px 0}
.section--soft{background:var(--soft)}
.section--blue{background:var(--navy);color:#fff}
.section-head{max-width:720px;margin-bottom:38px}
.section-head h2{font-size:34px;line-height:1.25;color:var(--navy);margin-bottom:13px}
.section--blue .section-head h2{color:#fff}
.section-head p{color:var(--muted);font-size:17px;margin-bottom:0}
.section--blue .section-head p{color:#b8c8db}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.stat strong{display:block;color:var(--navy);font-size:32px;line-height:1.2;margin-bottom:8px}
.stat span{color:var(--muted);font-size:14px}
.matrix{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
.matrix-main{padding:34px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.matrix-main h3{font-size:26px;margin-bottom:12px;color:var(--navy)}
.matrix-main p{color:var(--muted);max-width:650px}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.tag{padding:8px 12px;border-radius:8px;background:var(--sky);color:var(--blue);font-size:13px;font-weight:700}
.matrix-side{display:grid;gap:14px}
.mini-card{padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.mini-card strong{display:block;color:var(--navy);font-size:18px;margin-bottom:5px}
.mini-card p{margin:0;color:var(--muted);font-size:14px}
.compare{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.22s ease}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.compare-card.featured{border-color:#93bdf3;box-shadow:0 13px 30px rgba(31,103,210,.15)}
.compare-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.compare-card h3{font-size:20px;color:var(--navy);margin:0}
.badge{display:inline-flex;align-items:center;border-radius:5px;padding:3px 8px;font-size:11px;font-weight:800;color:var(--blue);background:var(--sky)}
.badge.green{color:var(--green);background:#eaf8f3}
.badge.gold{color:#9b6814;background:#fff5dc}
.compare-card ul{list-style:none;padding:0;margin:0}
.compare-card li{padding:10px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.compare-card li:before{content:"✓";color:var(--green);font-weight:800;margin-right:9px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.timeline:before{content:"";position:absolute;left:8%;right:8%;top:18px;height:1px;background:#aac5e7}
.milestone{position:relative;text-align:center;padding:0 15px}
.milestone i{display:block;width:36px;height:36px;margin:0 auto 19px;border-radius:50%;background:#fff;border:8px solid #d7e8fb;position:relative;z-index:1}
.milestone strong{display:block;color:var(--navy);margin-bottom:7px}
.milestone p{color:var(--muted);font-size:14px;margin:0}
.update-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:25px}
.update-feature{min-height:330px;border-radius:var(--radius);overflow:hidden;position:relative;color:#fff;background:#173a5f}
.update-feature img{width:100%;height:100%;object-fit:cover;opacity:.65}
.update-feature div{position:absolute;left:27px;right:27px;bottom:25px}
.update-feature h3{font-size:25px;line-height:1.3;margin:10px 0}
.update-feature p{color:#dceaf7;margin:0}
.news-list{display:grid;gap:13px}
.news-item{display:flex;gap:15px;align-items:center;padding:13px;background:#fff;border:1px solid var(--line);border-radius:12px;transition:.22s ease}
.news-item img{width:96px;height:72px;border-radius:9px;object-fit:cover}
.news-item strong{display:block;color:var(--navy);font-size:15px;line-height:1.45;margin-bottom:4px}
.news-item time{font-size:12px;color:var(--muted)}
.guarantee{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}
.guarantee-copy h2{font-size:34px;line-height:1.3;margin-bottom:15px}
.guarantee-copy p{color:#b8c8db;max-width:560px}
.guarantee-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.guarantee-item{padding:20px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:13px}
.guarantee-item strong{display:block;margin-bottom:5px}
.guarantee-item span{font-size:13px;color:#b8c8db}
.faq{max-width:850px}
.faq-item{border-top:1px solid var(--line);padding:20px 0}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;font-size:17px;font-weight:750;color:var(--navy);padding-right:25px;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";position:absolute;right:0;color:var(--blue);font-size:24px;line-height:1}
.faq-item[open] summary:after{content:"−"}
.faq-item p{color:var(--muted);font-size:14px;margin:12px 0 0;max-width:760px}
.subscribe{background:#eaf3ff;border:1px solid #cfe1f7;border-radius:var(--radius);padding:35px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.subscribe h2{font-size:27px;color:var(--navy);margin-bottom:7px}
.subscribe p{color:var(--muted);margin:0}
.subscribe-form{display:flex;gap:9px;flex-shrink:0}
.subscribe-form input{width:230px;height:47px;border:1px solid #b9cee5;border-radius:10px;padding:0 14px;background:#fff;color:var(--ink);outline:none}
.subscribe-form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,103,210,.13)}
.footer{background:#0d2238;color:#c5d3e1;padding:58px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
.footer .brand-name{color:#fff}
.footer .brand-mark{background:#fff;color:var(--navy)}
.footer p{font-size:14px;line-height:1.8;color:#9fb2c5;max-width:300px;margin-top:17px}
.footer h3{font-size:15px;color:#fff;margin:4px 0 15px}
.footer-grid>div:not(:first-child) a{display:block;color:#9fb2c5;font-size:14px;margin:8px 0;transition:.2s}
.footer-grid>div:not(:first-child) a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#8399af;font-size:12px}
.age-note{color:#b7c8d9}
:focus-visible{outline:3px solid rgba(31,103,210,.35);outline-offset:3px}
@media(max-width:1024px){
 .nav{gap:0}.nav a{padding:8px 8px;font-size:13px}.brand-name{font-size:16px}
 .hero,.hero-content{min-height:510px}.play-button{right:7%}
 .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(var(--container),calc(100% - 32px))}
 .topbar-inner{justify-content:center}.topbar-inner span:last-child{display:none}
 .nav-wrap{height:68px}.menu-toggle{display:block}
 .nav{position:absolute;left:16px;right:16px;top:76px;display:none;flex-direction:column;align-items:stretch;padding:10px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
 .nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-cta{margin:5px 0 0;text-align:center}
 .hero-copy{padding:64px 0 75px}.hero-copy p{font-size:16px}.play-button{top:auto;right:22px;bottom:30px;transform:none;width:62px;height:62px}
 .play-button:hover{transform:scale(1.05)}
 .section{padding:66px 0}.section-head h2{font-size:29px}
 .matrix,.update-layout,.guarantee{grid-template-columns:1fr}
 .compare{grid-template-columns:1fr}
 .timeline{grid-template-columns:1fr 1fr;gap:30px}.timeline:before{display:none}
 .guarantee-list{grid-template-columns:1fr 1fr}
 .subscribe{display:block}.subscribe-form{margin-top:22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
}
@media(max-width:520px){
 h1{font-size:39px}.hero-actions .btn{width:100%}.hero-actions{display:grid}
 .stats{grid-template-columns:1fr 1fr;gap:10px}.stat{padding:17px}.stat strong{font-size:25px}
 .matrix-main{padding:24px}.timeline{grid-template-columns:1fr}
 .guarantee-list{grid-template-columns:1fr}.subscribe{padding:25px}
 .subscribe-form{display:grid}.subscribe-form input{width:100%}.subscribe-form .btn{width:100%}
 .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
}