/* roulang page: index */
:root{
      --ink:#f5f7fb;--muted:#aab4c8;--dim:#77839a;--bg:#080d18;--panel:#101828;
      --panel-2:#141f32;--line:rgba(193,207,232,.14);--cyan:#55d9d0;--gold:#f0bd6e;
      --purple:#8775ff;--radius:22px;--shadow:0 18px 55px rgba(0,0,0,.28);--max:1200px
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:16px}a{color:inherit;text-decoration:none;transition:.25s ease}a:hover{color:var(--cyan)}img{max-width:100%;display:block}button,input,textarea{font:inherit}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(8,13,24,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-shell{min-height:76px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}.nav-side{display:flex;align-items:center;gap:26px}.nav-side.right{justify-content:flex-end}.nav-link{font-size:14px;color:var(--muted);padding:9px 0;position:relative}.nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--cyan);transition:.25s}.nav-link:hover:after,.nav-link.active:after{right:0}.nav-link.active{color:var(--ink)}.brand{text-align:center;white-space:nowrap;font-weight:800;letter-spacing:.04em;font-size:18px}.brand span{color:var(--cyan)}.nav-button{border:1px solid rgba(85,217,208,.45);color:var(--cyan);border-radius:999px;padding:9px 16px;font-size:13px}.nav-button:hover{background:var(--cyan);color:#07131a}.menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:7px 10px}.hero{position:relative;min-height:650px;display:flex;align-items:center;background-image:linear-gradient(90deg,rgba(8,13,24,.96) 0%,rgba(8,13,24,.78) 45%,rgba(8,13,24,.35) 100%),url('/assets/images/ec9d7baf9376c5d1.webp');background-size:cover;background-position:center}.hero:after{content:"";position:absolute;inset:auto 0 0;height:150px;background:linear-gradient(transparent,var(--bg));pointer-events:none}.hero-content{position:relative;z-index:1;max-width:760px;padding:88px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:18px}.eyebrow:before{content:"";width:28px;height:1px;background:var(--cyan)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(42px,6vw,78px);line-height:1.1;letter-spacing:-.055em;margin-bottom:24px;max-width:800px}h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.035em;margin-bottom:14px}h3{font-size:20px;line-height:1.35;margin-bottom:10px}.hero p{font-size:18px;color:#d5dceb;max-width:700px;margin-bottom:30px}.button-row{display:flex;flex-wrap:wrap;gap:13px}.button{border:0;border-radius:999px;padding:13px 23px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;transition:.25s;line-height:1.4}.button.primary{background:var(--cyan);color:#06131a}.button.primary:hover{background:#9af1e9;color:#06131a;transform:translateY(-2px);box-shadow:0 10px 26px rgba(85,217,208,.22)}.button.ghost{border:1px solid var(--line);color:var(--ink);background:rgba(255,255,255,.04)}.button.ghost:hover{border-color:var(--cyan);background:rgba(85,217,208,.1)}.hero-facts{display:flex;gap:30px;margin-top:42px}.fact strong{display:block;font-size:25px;color:var(--gold)}.fact small{color:var(--muted)}section{padding:92px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-head p{color:var(--muted);max-width:590px;margin-bottom:0}.kicker{color:var(--gold);font-size:13px;letter-spacing:.1em;margin-bottom:10px}.metrics{background:#0b1220;padding:30px 0}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.metric{background:var(--panel);padding:25px}.metric strong{font-size:32px;color:var(--cyan);display:block}.metric span{color:var(--muted);font-size:14px}.matrix{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.matrix-card{padding:30px;border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);min-height:245px}.matrix-card.featured{background:linear-gradient(135deg,#182743,#11192b);border-color:rgba(85,217,208,.4)}.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.tag{border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:13px;color:#cbd4e5}.tag:hover{border-color:var(--cyan);color:var(--cyan)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}.card:hover{transform:translateY(-5px);border-color:rgba(85,217,208,.45);box-shadow:var(--shadow)}.card-image{height:190px;object-fit:cover;width:100%}.card-body{padding:23px}.card-body p{color:var(--muted);font-size:14px;margin-bottom:0}.label{display:inline-block;color:var(--gold);font-size:12px;margin-bottom:10px}.live-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}.live-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.match{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:17px 0}.match:last-child{border:0}.match small{display:block;color:var(--dim)}.status{color:var(--cyan);font-size:12px;border:1px solid rgba(85,217,208,.35);border-radius:99px;padding:4px 9px}.s16-band{background:linear-gradient(110deg,#131b35,#0d1823);position:relative;overflow:hidden}.s16-band:before{content:"S16";position:absolute;right:8%;top:-35px;font-size:180px;font-weight:900;color:rgba(255,255,255,.035);line-height:1}.s16-content{position:relative;max-width:720px}.comparison{width:100%;border-collapse:separate;border-spacing:0 9px}.comparison th{text-align:left;color:var(--dim);font-weight:500;font-size:13px;padding:0 18px 7px}.comparison td{background:var(--panel);padding:17px 18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:#d7deeb}.comparison td:first-child{border-left:1px solid var(--line);border-radius:12px 0 0 12px;font-weight:700;color:var(--ink)}.comparison td:last-child{border-right:1px solid var(--line);border-radius:0 12px 12px 0}.comparison .recommended td{background:#142a31;color:#eafffc;border-color:rgba(85,217,208,.4)}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{position:relative;border-top:2px solid var(--purple);padding-top:20px}.step b{color:var(--purple);font-size:13px}.step p{color:var(--muted);font-size:14px}.assurance{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.assurance-item{padding:25px;background:var(--panel-2);border-radius:18px;border:1px solid var(--line)}.assurance-item strong{display:block;margin-bottom:8px;color:var(--cyan)}.assurance-item span{color:var(--muted);font-size:14px}.news-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.news{display:flex;justify-content:space-between;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}.news p{margin:0;color:#d7deeb}.news time{color:var(--dim);white-space:nowrap;font-size:13px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.faq{border:1px solid var(--line);background:var(--panel);border-radius:15px;padding:22px}.faq h3{font-size:17px}.faq p{color:var(--muted);font-size:14px;margin:0}.form-section{background:#101b2b}.form-box{max-width:780px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field label{display:block;color:#cdd6e5;font-size:13px;margin-bottom:6px}.field input,.field textarea{width:100%;background:#0b1220;border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:12px 14px;outline:none}.field input:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,217,208,.12)}.field.full{grid-column:1/-1}.form-note{font-size:12px;color:var(--dim);margin:14px 0 20px}.footer{padding:48px 0 25px;background:#060a13}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:45px;padding-bottom:35px}.footer p,.footer li{color:var(--muted);font-size:14px}.footer ul{list-style:none;margin:0;padding:0}.footer li{margin:8px 0}.footer-title{font-weight:700;color:var(--ink);margin-bottom:12px}.copyright{border-top:1px solid var(--line);padding-top:20px;color:var(--dim);font-size:12px;display:flex;justify-content:space-between;gap:20px}.reveal{scroll-margin-top:90px}:focus-visible{outline:3px solid rgba(85,217,208,.55);outline-offset:3px}
    @media(max-width:900px){.nav-shell{grid-template-columns:auto 1fr auto}.brand{font-size:15px}.nav-side{display:none}.menu-toggle{display:block}.nav-shell:focus-within .nav-side{display:flex;position:absolute;top:76px;left:20px;right:20px;background:var(--panel);padding:18px;border:1px solid var(--line);border-radius:14px;flex-wrap:wrap}.nav-shell:focus-within .nav-side.right{top:137px;justify-content:flex-start}.nav-shell:focus-within{padding-bottom:120px}.matrix,.live-layout{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:620px){.container{width:min(100% - 28px,var(--max))}.hero{min-height:620px}.hero-content{padding:65px 0}.hero p{font-size:16px}.hero-facts{gap:18px;flex-wrap:wrap}.metric-grid,.cards,.assurance,.faq-grid,.news-list,.footer-grid{grid-template-columns:1fr}.metric-grid{background:transparent;border:0;gap:10px}.metric{border:1px solid var(--line);border-radius:14px}.section-head{display:block}.section-head p{margin-top:12px}.timeline{grid-template-columns:1fr}.comparison{display:block;overflow-x:auto;white-space:nowrap}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:8px}h1{font-size:42px}}

/* roulang page: category1 */
:root{
 --ink:#f5f7fb;--muted:#aab4c8;--dim:#77839a;--bg:#080d18;--panel:#101828;
 --panel-2:#141f32;--line:rgba(193,207,232,.14);--cyan:#55d9d0;--gold:#f0bd6e;
 --purple:#8775ff;--radius:22px;--shadow:0 18px 55px rgba(0,0,0,.28);--max:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none;transition:.25s ease}
a:hover{color:var(--cyan)}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,6vw,72px);line-height:1.12;letter-spacing:-.04em;margin-bottom:22px}
h2{font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.03em;margin-bottom:12px}
h3{font-size:19px;line-height:1.4;margin-bottom:10px}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(8,13,24,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-shell{min-height:76px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side.right{justify-content:flex-end}
.nav-link{font-size:14px;color:var(--muted);padding:9px 0;position:relative}
.nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--cyan);transition:.25s}
.nav-link:hover:after,.nav-link.active:after{right:0}
.nav-link.active{color:var(--ink)}
.brand{text-align:center;white-space:nowrap;font-weight:800;letter-spacing:.04em;font-size:18px}
.brand span{color:var(--cyan)}
.nav-button{border:1px solid rgba(85,217,208,.45);color:var(--cyan);border-radius:999px;padding:9px 16px;font-size:13px}
.nav-button:hover{background:var(--cyan);color:#07131a}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:7px 10px}
.hero{position:relative;min-height:600px;display:flex;align-items:center;background-image:linear-gradient(90deg,rgba(8,13,24,.96) 0%,rgba(8,13,24,.82) 48%,rgba(8,13,24,.3) 100%),url('/assets/images/279fd5aa024ed2c3.png');background-size:cover;background-position:center}
.hero:after{content:"";position:absolute;inset:auto 0 0;height:150px;background:linear-gradient(transparent,var(--bg));pointer-events:none}
.hero-content{position:relative;z-index:1;max-width:760px;padding:84px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;letter-spacing:.12em;margin-bottom:18px}
.eyebrow:before{content:"";width:28px;height:1px;background:var(--cyan)}
.hero p{font-size:18px;color:#d5dceb;max-width:700px;margin-bottom:30px}
.button-row{display:flex;flex-wrap:wrap;gap:13px}
.button{border:0;border-radius:999px;padding:13px 23px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;transition:.25s;line-height:1.4}
.button.primary{background:var(--cyan);color:#06131a}
.button.primary:hover{background:#9af1e9;color:#06131a;transform:translateY(-2px);box-shadow:0 10px 26px rgba(85,217,208,.22)}
.button.ghost{border:1px solid var(--line);color:var(--ink);background:rgba(255,255,255,.04)}
.button.ghost:hover{border-color:var(--cyan);background:rgba(85,217,208,.1)}
.hero-facts{display:flex;gap:30px;margin-top:42px}
.fact strong{display:block;color:var(--gold);font-size:25px;line-height:1.2}
.fact span{color:var(--muted);font-size:13px}
section{padding:88px 0;border-bottom:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-head p{color:var(--muted);max-width:600px;margin-bottom:0}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.metric{background:var(--panel);padding:27px}
.metric strong{display:block;color:var(--cyan);font-size:31px;line-height:1.2;margin-bottom:7px}
.metric span{color:var(--muted);font-size:14px}
.matrix{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.matrix-card{padding:30px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);min-height:245px}
.matrix-card.featured{background:linear-gradient(135deg,#182743,#11192b);border-color:rgba(85,217,208,.4)}
.matrix-card p,.card-body p,.assurance-item span,.faq p{color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.tag{border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:13px;color:#cbd4e5}
.tag:hover{border-color:var(--cyan);color:var(--cyan)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
.card:hover{transform:translateY(-5px);border-color:rgba(85,217,208,.45);box-shadow:var(--shadow)}
.card-image{height:190px;object-fit:cover;width:100%}
.card-body{padding:23px}
.card-body p{font-size:14px;margin-bottom:0}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-panel{padding:30px;border-radius:var(--radius);background:var(--panel-2);border:1px solid var(--line)}
.compare-panel.accent{border-color:rgba(240,189,110,.4);background:linear-gradient(135deg,#211d25,#111827)}
.compare-list,.timeline,.news-list{list-style:none;margin:0;padding:0}
.compare-list li{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.compare-list li:last-child{border-bottom:0}
.compare-list b{color:var(--ink);font-weight:600}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.timeline li{position:relative;padding:24px 20px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.timeline em{display:block;color:var(--gold);font-style:normal;font-size:13px;margin-bottom:13px}
.timeline strong{display:block;margin-bottom:8px}
.timeline span{color:var(--muted);font-size:14px}
.news-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:28px;align-items:start}
.news-feature{border-radius:var(--radius);overflow:hidden;background:var(--panel);border:1px solid var(--line)}
.news-feature img{width:100%;height:265px;object-fit:cover}
.news-feature .card-body{padding:26px}
.news-list{display:grid;gap:12px}
.news-list li{padding:19px 21px;background:var(--panel);border:1px solid var(--line);border-radius:15px;display:flex;justify-content:space-between;gap:18px}
.news-list a{font-weight:600}
.news-list span{white-space:nowrap;color:var(--dim);font-size:13px}
.assurance{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.assurance-item{padding:25px;background:var(--panel-2);border-radius:18px;border:1px solid var(--line)}
.assurance-item strong{display:block;margin-bottom:8px;color:var(--cyan)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq{border:1px solid var(--line);background:var(--panel);border-radius:15px;padding:22px}
.faq h3{font-size:17px}
.faq p{font-size:14px;margin:0}
.form-section{background:#101b2b}
.form-box{max-width:820px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.field label{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
.field input,.field textarea{width:100%;background:#0b1220;border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:12px 14px;outline:none}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,217,208,.12)}
.full{grid-column:1/-1}
.form-note{font-size:12px;color:var(--dim);margin:14px 0 20px}
.footer{padding:48px 0 25px;background:#060a13}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:45px;padding-bottom:35px}
.footer p,.footer li{color:var(--muted);font-size:14px}
.footer ul{list-style:none;margin:0;padding:0}
.footer li{margin:8px 0}
.footer-title{font-weight:700;color:var(--ink);margin-bottom:12px}
.copyright{border-top:1px solid var(--line);padding-top:20px;color:var(--dim);font-size:12px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1024px){
 .nav-shell{grid-template-columns:auto 1fr auto}
 .nav-side{gap:16px}
 .metric-grid{grid-template-columns:repeat(2,1fr)}
 .cards{grid-template-columns:repeat(2,1fr)}
 .timeline{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(100% - 28px,var(--max))}
 .nav-shell{min-height:68px}
 .nav-side{display:none}
 .menu-toggle{display:block;justify-self:end}
 .nav-shell:focus-within .nav-side{display:flex;position:absolute;top:68px;left:14px;right:14px;background:var(--panel);padding:18px;border:1px solid var(--line);border-radius:14px;flex-wrap:wrap}
 .nav-shell:focus-within .nav-side.right{top:126px;justify-content:flex-start}
 .nav-shell:focus-within{padding-bottom:115px}
 .hero{min-height:580px}
 .hero-content{padding:65px 0}
 .hero p{font-size:16px}
 .hero-facts{gap:18px;flex-wrap:wrap}
 .section-head{display:block}
 .section-head p{margin-top:14px}
 .matrix,.compare,.news-layout{grid-template-columns:1fr}
 .assurance,.faq-grid,.news-list{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr;gap:25px}
 .copyright{display:block}
 .copyright span{display:block;margin-top:8px}
}
@media(max-width:520px){
 h1{font-size:40px}
 h2{font-size:30px}
 section{padding:66px 0}
 .metric-grid,.cards,.timeline{grid-template-columns:1fr}
 .form-grid{grid-template-columns:1fr}
 .full{grid-column:auto}
 .button{width:100%}
 .news-list li{display:block}
 .news-list span{display:block;margin-top:7px}
}