/* roulang page: index */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}a{color:inherit;text-decoration:none;transition:.25s}a:hover{color:var(--cyan)}img{max-width:100%;display:block}button,input,textarea{font:inherit}button:focus,input:focus,textarea:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}.container{max-width:1180px;margin:auto;padding:0 22px}.site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.navbar{min-height:76px}.brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}.brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}.nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}.nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}.nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}.nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}.hero{position:relative;overflow:hidden;padding:88px 0 74px;background:linear-gradient(100deg,rgba(7,16,31,.98) 20%,rgba(7,16,31,.78)),url('/assets/images/backpic/back-1.webp') center/cover}.hero:after{content:"";position:absolute;width:420px;height:420px;right:4%;top:-180px;border:1px solid rgba(66,232,208,.2);border-radius:50%;box-shadow:0 0 0 30px rgba(66,232,208,.025),0 0 0 80px rgba(146,119,255,.04)}.eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}.hero h1{font-size:clamp(38px,6vw,72px);line-height:1.13;max-width:780px;margin:15px 0 22px;font-weight:900;letter-spacing:-.045em}.hero p{max-width:700px;color:#c5d0e1;font-size:18px}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:30px 0}.btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}.btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}.icon-matrix{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;max-width:590px;margin-top:38px}.matrix-cell{height:64px;border:1px solid var(--line);background:rgba(16,31,54,.78);border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--cyan);font-size:25px}.matrix-cell:nth-child(2n){color:var(--lime}.matrix-cell:nth-child(3n){color:var(--violet)}.statusbar{margin-top:28px;display:flex;flex-wrap:wrap;gap:24px;color:var(--muted);font-size:13px}.statusbar strong{color:#fff;font-size:18px;margin-right:5px}.section{padding:84px 0}.section.compact{padding:62px 0}.section-title{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}.section-intro{max-width:680px;color:var(--muted);font-size:16px}.dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}.panel,.feature,.article,.quote,.faq-item,.form-box{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}.feature{padding:27px;height:100%;transition:.25s}.feature:hover,.article:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}.feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:22px;margin-bottom:19px}.feature h3{font-size:20px;margin:0 0 10px}.feature p,.article p,.quote p{color:var(--muted);font-size:14px;margin:0}.tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}.benefit-band{display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center}.benefit-copy{padding:12px 0}.benefit-copy p{color:#bdc9db;max-width:630px}.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.data-box{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}.data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}.data-box span{color:var(--muted);font-size:13px}.qualification{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}.check-list{padding:0;margin:20px 0;list-style:none}.check-list li{padding:14px 0 14px 32px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}.topic-wall{display:flex;flex-wrap:wrap;gap:13px;padding:25px;background:rgba(16,31,54,.55);border:1px solid var(--line);border-radius:var(--radius)}.topic-wall a{padding:13px 17px;border-radius:14px;background:#142541;color:#cfdbeb;border:1px solid transparent}.topic-wall a:hover{border-color:var(--cyan);color:#fff;transform:translateY(-2px)}.visual-split{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.visual-split img{width:100%;height:330px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step{padding:24px 22px;border-left:2px solid var(--cyan);background:rgba(255,255,255,.035);border-radius:0 18px 18px 0}.step b{color:var(--cyan);font-size:13px;letter-spacing:.1em}.step h3{font-size:19px;margin:10px 0}.step p{color:var(--muted);font-size:14px}.news-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:25px}.article{display:grid;grid-template-columns:180px 1fr;gap:21px;padding:17px;margin-bottom:13px}.article img{height:125px;width:180px;object-fit:cover;border-radius:15px}.article h3{font-size:18px;margin:7px 0 5px;line-height:1.4}.date{color:var(--cyan);font-size:12px}.side-panel{padding:25px}.side-panel h3{margin-top:0}.side-list{list-style:none;padding:0;margin:15px 0 0}.side-list li{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}.side-list span{display:block;color:var(--muted);font-size:12px}.timeline{border-left:1px solid rgba(66,232,208,.5);padding-left:27px}.timeline-item{position:relative;padding:0 0 24px}.timeline-item:before{content:"";position:absolute;left:-34px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}.timeline-item h3{font-size:18px;margin:0 0 5px}.timeline-item p{color:var(--muted);margin:0;font-size:14px}.quote{padding:28px;height:100%;position:relative}.quote:before{content:"“";font-size:60px;color:var(--cyan);position:absolute;right:22px;top:4px;opacity:.6}.quote strong{display:block;margin-top:20px;color:#fff}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.faq-item{padding:20px 23px}.faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}.faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}.form-box{padding:30px}.form-control,.form-select{background:#091628;border:1px solid var(--line);color:#fff;border-radius:12px;padding:12px 14px}.form-control::placeholder{color:#738198}.form-label{font-size:13px;color:#bdc9da}.form-note{color:var(--muted);font-size:13px}.cta{padding:55px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}.cta p{color:#c0ccdc;margin:0}.site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-size:22px;font-weight:850}.footer-title{color:#fff;font-weight:700;margin-bottom:12px}.footer-links{display:flex;flex-direction:column;gap:8px}.copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.copyright a{color:#aebbd0}.mobile-toggle{border-color:var(--line)!important}.mobile-toggle span{filter:invert(1)}
@media(max-width:991px){.navbar-collapse{padding:15px 0}.nav-cta{display:inline-block;margin-top:8px}.hero{padding:70px 0}.benefit-band,.qualification,.visual-split,.news-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.icon-matrix{max-width:100%}}
@media(max-width:767px){.section{padding:60px 0}.section-head,.cta-inner{display:block}.section-head .btn-outline{display:inline-block;margin-top:18px}.hero h1{font-size:42px}.hero p{font-size:16px}.icon-matrix{grid-template-columns:repeat(3,1fr)}.steps,.faq-grid{grid-template-columns:1fr}.article{grid-template-columns:1fr}.article img{width:100%;height:180px}.footer-grid{grid-template-columns:1fr}.data-grid{margin-top:15px}}
@media(max-width:520px){.container{padding:0 16px}.hero{padding:55px 0}.hero h1{font-size:36px}.hero-actions .btn-primary,.hero-actions .btn-outline{width:100%;text-align:center}.statusbar{gap:12px}.visual-split img{height:240px}.form-box{padding:21px}.copyright{display:block}.copyright div+div{margin-top:12px}}

/* roulang page: category2 */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}
    a{color:inherit;text-decoration:none;transition:.25s}
    a:hover{color:var(--cyan)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button:focus,input:focus,textarea:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{min-height:76px}
    .brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}
    .nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}
    .nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}
    .nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}
    .nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}
    .hero{position:relative;overflow:hidden;padding:78px 0 68px;background:linear-gradient(100deg,rgba(7,16,31,.98) 18%,rgba(7,16,31,.76)),url('/assets/images/backpic/back-2.webp') center/cover}
    .hero:after{content:"";position:absolute;width:430px;height:430px;right:2%;top:-185px;border:1px solid rgba(66,232,208,.2);border-radius:50%;box-shadow:0 0 0 32px rgba(66,232,208,.025),0 0 0 82px rgba(146,119,255,.04)}
    .hero-content{position:relative;z-index:1}
    .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}
    .hero h1{font-size:clamp(38px,6vw,68px);line-height:1.13;max-width:690px;margin:15px 0 20px;font-weight:900;letter-spacing:-.045em}
    .hero p{max-width:650px;color:#c5d0e1;font-size:18px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:28px 0}
    .btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}
    .btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}
    .score-panel{position:relative;z-index:1;background:rgba(10,23,41,.86);border:1px solid rgba(66,232,208,.28);border-radius:24px;padding:24px;box-shadow:var(--shadow);backdrop-filter:blur(8px)}
    .score-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:9px}
    .score-head strong{font-size:16px}.live-dot{color:var(--cyan);font-size:12px}
    .score-row{display:grid;grid-template-columns:1fr 50px 1fr;gap:10px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}
    .score-row:last-child{border-bottom:0}.score-row span:last-child{text-align:right}.score{font-size:22px;color:var(--lime);font-weight:900;text-align:center}
    .section{padding:78px 0}.section.compact{padding:58px 0}
    .dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-title{font-size:clamp(28px,4vw,43px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}
    .section-intro{max-width:700px;color:var(--muted);font-size:16px}
    .panel,.feature,.article,.quote,.faq-item,.form-box{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}
    .feature{padding:26px;height:100%;transition:.25s}.feature:hover,.article:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}
    .feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:21px;margin-bottom:18px}
    .feature h3{font-size:20px;margin:0 0 9px}.feature p,.article p,.quote p{color:var(--muted);font-size:14px;margin:0}
    .tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}
    .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.data-box{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}
    .data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}.data-box span{color:var(--muted);font-size:13px}
    .visual-split img{width:100%;height:355px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}
    .check-list{padding:0;margin:20px 0;list-style:none}.check-list li{padding:14px 0 14px 32px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
    .insight-panel{padding:31px}.insight-panel h3{font-size:25px;margin:0 0 13px}.insight-panel p{color:var(--muted)}
    .article{padding:15px;display:flex;gap:18px;align-items:center;height:100%}.article img{height:112px;width:150px;object-fit:cover;border-radius:15px}.article h3{font-size:17px;margin:7px 0 5px}
    .side-list{list-style:none;padding:0;margin:0}.side-list li{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}.side-list span{display:block;color:var(--muted);font-size:12px}
    .timeline{border-left:1px solid rgba(66,232,208,.45);padding-left:34px;margin:8px 0}.timeline-item{position:relative;padding:0 0 24px}.timeline-item:before{content:"";position:absolute;left:-41px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}.timeline-item h3{font-size:18px;margin:0 0 5px}.timeline-item p{color:var(--muted);margin:0;font-size:14px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.faq-item{padding:20px 23px}.faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}.faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .topic-wall{display:flex;flex-wrap:wrap;gap:11px}.topic-wall a{padding:12px 16px;border-radius:14px;background:#142541;color:#cfdbeb;border:1px solid transparent}.topic-wall a:hover{border-color:var(--cyan);color:#fff;transform:translateY(-2px)}
    .cta{padding:54px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}.cta p{color:#c0ccdc;margin:0}
    .site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-size:22px;font-weight:850}.footer-title{color:#fff;font-weight:700;margin-bottom:12px}.footer-links{display:flex;flex-direction:column;gap:8px}.copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.copyright a{color:#aebbd0}.mobile-toggle{border-color:var(--line)!important}.mobile-toggle span{filter:invert(1)}
    @media(max-width:1024px){.nav-link{padding-left:8px!important;padding-right:8px!important}.data-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.hero{padding:62px 0 54px}.section{padding:60px 0}.section-head,.cta-inner{display:block}.section-head .btn-outline,.cta-inner .btn-primary{display:inline-block;margin-top:18px}.faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.score-panel{margin-top:34px}}
    @media(max-width:520px){.container{padding:0 17px}.hero h1{font-size:42px}.hero p{font-size:16px}.data-grid{grid-template-columns:1fr 1fr}.data-box{padding:16px}.data-box strong{font-size:24px}.article{align-items:flex-start}.article img{width:105px;height:90px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright div+div{margin-top:10px}}

/* roulang page: category3 */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}
    a{color:inherit;text-decoration:none;transition:.25s}
    a:hover{color:var(--cyan)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button:focus,input:focus,textarea:focus,select:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{min-height:76px}
    .brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}
    .nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}
    .nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}
    .nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}
    .nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}
    .hero{position:relative;overflow:hidden;padding:76px 0 70px;background:linear-gradient(100deg,rgba(7,16,31,.98) 20%,rgba(7,16,31,.76)),url('/assets/images/backpic/back-2.webp') center/cover}
    .hero:after{content:"";position:absolute;width:420px;height:420px;right:4%;top:-180px;border:1px solid rgba(66,232,208,.2);border-radius:50%;box-shadow:0 0 0 30px rgba(66,232,208,.025),0 0 0 80px rgba(146,119,255,.04)}
    .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}
    .hero h1{font-size:clamp(38px,6vw,68px);line-height:1.13;max-width:760px;margin:15px 0 22px;font-weight:900;letter-spacing:-.045em}
    .hero p{max-width:680px;color:#c5d0e1;font-size:18px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:28px 0}
    .btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}
    .btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}
    .section{padding:80px 0}
    .section.compact{padding:58px 0}
    .section-title{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}
    .section-intro{max-width:720px;color:var(--muted);font-size:16px}
    .dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}
    .panel,.feature,.article,.quote,.faq-item,.form-box,.whitepaper{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}
    .feature{padding:27px;height:100%;transition:.25s}
    .feature:hover,.article:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}
    .feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:22px;margin-bottom:19px}
    .feature h3{font-size:20px;margin:0 0 10px}
    .feature p,.article p,.quote p{color:var(--muted);font-size:14px;margin:0}
    .tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}
    .data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .data-box{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}
    .data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}
    .data-box span{color:var(--muted);font-size:13px}
    .check-list{padding:0;margin:20px 0;list-style:none}
    .check-list li{padding:14px 0 14px 32px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
    .visual-split img{width:100%;height:330px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}
    .timeline{border-left:1px solid rgba(66,232,208,.35);padding-left:34px}
    .timeline-item{position:relative;padding:0 0 25px}
    .timeline-item:before{content:"";position:absolute;left:-41px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
    .timeline-item h3{font-size:18px;margin:0 0 5px}
    .timeline-item p{color:var(--muted);margin:0;font-size:14px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .faq-item{padding:20px 23px}
    .faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}
    .faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .form-box{padding:30px}
    .form-control,.form-select{background:#091628;border:1px solid var(--line);color:#fff;border-radius:12px;padding:12px 14px}
    .form-control::placeholder{color:#738198}
    .form-label{font-size:13px;color:#bdc9da}
    .form-note{color:var(--muted);font-size:13px}
    .cta{padding:55px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}
    .cta p{color:#c0ccdc;margin:0}
    .site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-size:22px;font-weight:850}
    .footer-title{color:#fff;font-weight:700;margin-bottom:12px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .copyright a{color:#aebbd0}
    .mobile-toggle{border-color:var(--line)!important}
    .mobile-toggle span{filter:invert(1)}
    .cover-card{padding:14px;background:#15253d;border:1px solid var(--line);border-radius:20px;transform:rotate(-2deg);box-shadow:var(--shadow)}
    .cover-card img{height:370px;width:100%;object-fit:cover;border-radius:13px}
    .paper-index{padding:26px 28px;border-left:2px solid var(--cyan);background:rgba(255,255,255,.04);border-radius:0 18px 18px 0}
    .paper-index ol{margin:15px 0 0;padding-left:22px;color:#cfdaea}
    .paper-index li{padding:6px 0}
    .signal{display:flex;align-items:center;gap:12px;padding:16px;border-bottom:1px solid var(--line)}
    .signal:last-child{border-bottom:0}
    .signal b{color:var(--lime);font-size:15px}
    .signal small{display:block;color:var(--muted)}
    .quote{padding:28px;height:100%}
    .quote-mark{color:var(--cyan);font-size:36px;line-height:1}
    @media(max-width:991px){.navbar-nav{padding:18px 0}.nav-cta{display:inline-block;margin-top:8px}.hero{padding-top:62px}.section-head{display:block}.section-head .section-intro{margin-top:12px}}
    @media(max-width:767px){.section{padding:60px 0}.hero h1{font-size:43px}.hero p{font-size:16px}.faq-grid,.footer-grid{grid-template-columns:1fr}.cta-inner{display:block}.cta-inner .btn-primary{margin-top:22px}.cover-card img{height:300px}.data-grid{grid-template-columns:1fr}.copyright{display:block}.copyright>div+div{margin-top:12px}}
    @media(max-width:520px){.container{padding:0 17px}.hero{padding:48px 0 52px}.hero-actions a{width:100%;text-align:center}.section-title{font-size:30px}.form-box{padding:22px}.brand{font-size:22px}}

/* roulang page: category5 */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}a{color:inherit;text-decoration:none;transition:.25s}a:hover{color:var(--cyan)}img{max-width:100%;display:block}button,input,textarea{font:inherit}button:focus,input:focus,textarea:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}.container{max-width:1180px;margin:auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.navbar{min-height:76px}.brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}.brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}.nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}.nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}.nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}.nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}
.hero{position:relative;overflow:hidden;padding:82px 0 70px;background:linear-gradient(100deg,rgba(7,16,31,.98) 20%,rgba(7,16,31,.78)),url('/assets/images/backpic/back-2.webp') center/cover}.hero:after{content:"";position:absolute;width:420px;height:420px;right:4%;top:-180px;border:1px solid rgba(66,232,208,.2);border-radius:50%;box-shadow:0 0 0 30px rgba(66,232,208,.025),0 0 0 80px rgba(146,119,255,.04)}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.13;max-width:760px;margin:15px 0 22px;font-weight:900;letter-spacing:-.045em}.hero p{max-width:690px;color:#c5d0e1;font-size:18px}.eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:28px 0}.btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}.btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}
.section{padding:78px 0}.section.compact{padding:56px 0}.dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-title{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}.section-intro{max-width:680px;color:var(--muted);font-size:16px}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:31px}.panel,.feature,.article,.quote,.faq-item,.form-box{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}.feature{padding:27px;height:100%;transition:.25s}.feature:hover,.article:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}.feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:22px;margin-bottom:19px}.feature h3{font-size:20px;margin:0 0 10px}.feature p,.article p,.quote p{color:var(--muted);font-size:14px;margin:0}.tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}.visual-split img{width:100%;height:360px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}.check-list{padding:0;margin:20px 0;list-style:none}.check-list li{padding:14px 0 14px 32px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.data-box{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}.data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}.data-box span{color:var(--muted);font-size:13px}.timeline{border-left:1px solid rgba(66,232,208,.38);padding-left:34px;margin:12px 0}.timeline-item{position:relative;padding:0 0 25px}.timeline-item:before{content:"";position:absolute;left:-41px;top:9px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}.timeline-item h3{font-size:18px;margin:0 0 5px}.timeline-item p{color:var(--muted);margin:0;font-size:14px}.quote{padding:29px;height:100%}.quote strong{display:block;color:var(--lime);font-size:35px;margin-bottom:5px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.faq-item{padding:20px 23px}.faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}.faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}.cta{padding:55px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}.cta p{color:#c0ccdc;margin:0}.site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-size:22px;font-weight:850}.footer-title{color:#fff;font-weight:700;margin-bottom:12px}.footer-links{display:flex;flex-direction:column;gap:8px}.copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.copyright a{color:#aebbd0}.mobile-toggle{border-color:var(--line)!important}.mobile-toggle span{filter:invert(1)}.ring{width:158px;height:158px;border-radius:50%;background:conic-gradient(var(--cyan) 0 72%,rgba(255,255,255,.1) 72% 100%);display:grid;place-items:center;margin:auto;box-shadow:0 0 35px rgba(66,232,208,.16)}.ring:before{content:"";position:absolute;width:122px;height:122px;border-radius:50%;background:#0c1b30}.ring-content{position:relative;text-align:center}.ring-content b{display:block;color:var(--lime);font-size:30px;line-height:1.2}.tier{border:1px solid var(--line);border-radius:15px;padding:13px 15px;background:rgba(255,255,255,.035)}.tier b{display:block;color:#fff}.tier small{color:var(--muted)}.article img{height:150px;width:100%;object-fit:cover;border-radius:15px;margin-bottom:18px}
@media(max-width:991px){.navbar-nav{padding:18px 0}.nav-cta{display:inline-block;margin-top:8px}.hero{padding-top:64px}.section{padding:62px 0}}
@media(max-width:767px){.hero h1{font-size:42px}.hero p{font-size:16px}.section-head,.cta-inner{display:block}.section-head .btn-outline,.cta-inner .btn-primary{display:inline-block;margin-top:18px}.faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.visual-split img{height:260px}}
@media(max-width:520px){.container{padding:0 17px}.hero{padding:52px 0}.hero h1{font-size:35px}.data-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright div+div{margin-top:10px}}

/* roulang page: category4 */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}
a{color:inherit;text-decoration:none;transition:.25s}
a:hover{color:var(--cyan)}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button:focus,input:focus,textarea:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}
.container{max-width:1180px;margin:auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.navbar{min-height:76px}
.brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}
.brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}
.nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}
.nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}
.nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}
.nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}
.mobile-toggle{border-color:var(--line)!important}
.mobile-toggle span{filter:invert(1)}
.hero-inner{position:relative;z-index:2}
.page-hero{position:relative;min-height:470px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(100deg,rgba(7,16,31,.98) 18%,rgba(7,16,31,.64)),url('/assets/images/backpic/back-2.webp') center/cover}
.page-hero:after{content:"";position:absolute;right:9%;top:60px;width:300px;height:300px;border:1px solid rgba(66,232,208,.25);border-radius:50%;box-shadow:0 0 0 34px rgba(66,232,208,.035),0 0 0 78px rgba(146,119,255,.04)}
.eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}
.page-hero h1{font-size:clamp(38px,6vw,68px);line-height:1.13;max-width:720px;margin:15px 0 20px;font-weight:900;letter-spacing:-.045em}
.page-hero p{max-width:680px;color:#c5d0e1;font-size:18px}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:28px 0}
.btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}
.btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}
.play-button{width:72px;height:72px;border:1px solid rgba(66,232,208,.7);border-radius:50%;background:rgba(7,16,31,.65);color:var(--cyan);font-size:23px;display:grid;place-items:center;box-shadow:0 0 30px rgba(66,232,208,.2);transition:.25s}
.play-button:hover{background:var(--cyan);color:#07101f;transform:scale(1.06)}
.section{padding:82px 0}
.section.compact{padding:58px 0}
.dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-title{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}
.section-intro{max-width:700px;color:var(--muted);font-size:16px}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}
.panel,.feature,.article,.quote,.faq-item,.form-box{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}
.feature{padding:27px;height:100%;transition:.25s}
.feature:hover,.article:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}
.feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:22px;margin-bottom:19px}
.feature h3{font-size:20px;margin:0 0 10px}
.feature p,.article p,.quote p{color:var(--muted);font-size:14px;margin:0}
.tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}
.schedule-panel{padding:25px}
.schedule-row{display:grid;grid-template-columns:105px 1fr 100px;gap:18px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line)}
.schedule-row:last-child{border-bottom:0}
.schedule-time{color:var(--lime);font-weight:800;font-size:18px}
.schedule-meta{color:var(--muted);font-size:13px}
.status{justify-self:end;color:var(--cyan);font-size:12px;border:1px solid rgba(66,232,208,.35);padding:4px 10px;border-radius:20px}
.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.data-box{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}
.data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}
.data-box span{color:var(--muted);font-size:13px}
.check-list{padding:0;margin:20px 0;list-style:none}
.check-list li{padding:14px 0 14px 32px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}
.check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
.visual-split img{width:100%;height:360px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}
.process{border-left:1px solid rgba(66,232,208,.35);padding-left:34px}
.timeline-item{position:relative;padding:0 0 25px}
.timeline-item:before{content:"";position:absolute;left:-41px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.timeline-item h3{font-size:18px;margin:0 0 5px}
.timeline-item p{color:var(--muted);margin:0;font-size:14px}
.quote{padding:28px;height:100%}
.quote strong{display:block;color:var(--cyan);font-size:14px;margin-top:17px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.faq-item{padding:20px 23px}
.faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}
.faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}
.cta{padding:55px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}
.cta p{color:#c0ccdc;margin:0}
.site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
.footer-brand{color:#fff;font-size:22px;font-weight:850}
.footer-title{color:#fff;font-weight:700;margin-bottom:12px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.copyright a{color:#aebbd0}
.mini-note{color:var(--muted);font-size:13px}
@media(max-width:991px){.navbar-nav{padding:15px 0}.nav-cta{display:inline-block;margin-top:8px}.page-hero{min-height:430px}}
@media(max-width:767px){.section{padding:62px 0}.section-head,.cta-inner{display:block}.section-head .section-intro{margin-top:14px}.faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.page-hero p{font-size:16px}.page-hero:after{right:-120px}}
@media(max-width:520px){.container{padding:0 17px}.footer-grid{grid-template-columns:1fr}.schedule-row{grid-template-columns:78px 1fr}.status{grid-column:2;justify-self:start;margin-top:-10px}.data-grid{grid-template-columns:1fr}.page-hero{min-height:500px}.hero-actions .btn-primary,.hero-actions .btn-outline{width:100%;text-align:center}}

/* roulang page: category6 */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}
    a{color:inherit;text-decoration:none;transition:.25s}
    a:hover{color:var(--cyan)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button:focus,input:focus,textarea:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{min-height:76px}
    .brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}
    .nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}
    .nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}
    .nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}
    .nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}
    .hero{position:relative;overflow:hidden;padding:78px 0 70px;background:linear-gradient(100deg,rgba(7,16,31,.98) 20%,rgba(7,16,31,.78)),url('/assets/images/backpic/back-2.webp') center/cover}
    .hero:after{content:"";position:absolute;width:430px;height:430px;right:3%;top:-180px;border:1px solid rgba(66,232,208,.2);border-radius:50%;box-shadow:0 0 0 30px rgba(66,232,208,.025),0 0 0 80px rgba(146,119,255,.04)}
    .hero h1{font-size:clamp(38px,6vw,68px);line-height:1.13;max-width:680px;margin:14px 0 20px;font-weight:900;letter-spacing:-.045em}
    .hero p{max-width:650px;color:#c5d0e1;font-size:18px}
    .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:29px 0 0}
    .btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}
    .btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}
    .rank-panel{position:relative;z-index:1;padding:25px;background:rgba(10,24,43,.88);border:1px solid rgba(66,232,208,.3);border-radius:24px;box-shadow:var(--shadow)}
    .rank-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:7px}
    .rank-head strong{font-size:18px}
    .live-dot{color:var(--cyan);font-size:12px}
    .rank-row{display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}
    .rank-row:last-child{border-bottom:0}
    .rank-num{color:var(--lime);font-size:20px;font-weight:900}
    .rank-row span{display:block;color:var(--muted);font-size:12px}
    .rank-value{color:#fff;font-weight:800}
    .section{padding:78px 0}
    .section.compact{padding:58px 0}
    .dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-title{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}
    .section-intro{max-width:680px;color:var(--muted);font-size:16px}
    .panel,.feature,.quote,.faq-item,.form-box{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}
    .feature{padding:27px;height:100%;transition:.25s}
    .feature:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}
    .feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:22px;margin-bottom:18px}
    .feature h3{font-size:20px;margin:0 0 10px}
    .feature p,.quote p{color:var(--muted);font-size:14px;margin:0}
    .tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}
    .visual-split img{width:100%;height:340px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}
    .copy-box{padding:7px 8px 7px 28px}
    .check-list{padding:0;margin:19px 0 0;list-style:none}
    .check-list li{padding:13px 0 13px 31px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
    .data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .data-box{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}
    .data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}
    .data-box span{color:var(--muted);font-size:13px}
    .process{position:relative;padding-left:55px;border-left:1px solid rgba(66,232,208,.35)}
    .process-item{position:relative;padding:0 0 30px}
    .process-item:before{content:"";position:absolute;left:-63px;top:5px;width:16px;height:16px;border-radius:50%;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
    .process-item h3{font-size:19px;margin:0 0 6px}
    .process-item p{color:var(--muted);font-size:14px;margin:0;max-width:650px}
    .quote{padding:26px;height:100%}
    .quote-mark{font-size:38px;color:var(--cyan);line-height:1;margin-bottom:8px}
    .quote cite{display:block;color:#fff;font-style:normal;margin-top:15px;font-weight:700}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .faq-item{padding:19px 22px}
    .faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}
    .faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .cta{padding:55px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}
    .cta p{color:#c0ccdc;margin:0}
    .site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-size:22px;font-weight:850}
    .footer-title{color:#fff;font-weight:700;margin-bottom:12px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .copyright a{color:#aebbd0}
    .mobile-toggle{border-color:var(--line)!important}
    .mobile-toggle span{filter:invert(1)}
    @media(max-width:991px){.nav-link{padding:10px 8px!important}.nav-cta{display:inline-block;margin:10px 8px}.hero{padding-top:62px}.hero .rank-panel{margin-top:28px}.copy-box{padding:25px 0 0}}
    @media(max-width:767px){.section{padding:60px 0}.section-head{display:block}.section-head .section-intro{margin-top:10px}.faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta-inner .btn-primary{display:inline-block;margin-top:22px}}
    @media(max-width:520px){.container{padding:0 17px}.hero h1{font-size:39px}.hero p{font-size:16px}.data-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright div+div{margin-top:10px}.rank-panel{padding:19px}.visual-split img{height:245px}}

/* roulang page: category1 */
:root{--ink:#f5f8ff;--muted:#9ba8bd;--bg:#07101f;--panel:#0d1a2e;--panel2:#101f36;--line:rgba(157,181,218,.18);--cyan:#42e8d0;--lime:#b6f36b;--violet:#9277ff;--shadow:0 20px 65px rgba(0,0,0,.28);--radius:22px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;letter-spacing:.01em}
    a{color:inherit;text-decoration:none;transition:.25s}
    a:hover{color:var(--cyan)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button:focus,input:focus,textarea:focus,a:focus{outline:3px solid rgba(66,232,208,.35);outline-offset:3px}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(7,16,31,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{min-height:76px}
    .brand{font-size:25px;font-weight:900;letter-spacing:.06em;color:#fff}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--cyan);border-radius:50%;margin-left:8px;box-shadow:0 0 16px var(--cyan)}
    .nav-link{font-size:14px;color:#b8c5d9!important;padding:10px 13px!important;border-radius:12px}
    .nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(66,232,208,.1);box-shadow:inset 0 -2px var(--cyan)}
    .nav-cta,.btn-primary{border:0;color:#06121d!important;background:var(--cyan);font-weight:800;border-radius:12px;padding:11px 19px;box-shadow:0 8px 24px rgba(66,232,208,.18)}
    .nav-cta:hover,.btn-primary:hover{background:var(--lime);transform:translateY(-2px)}
    .hero{position:relative;overflow:hidden;padding:76px 0 68px;background:linear-gradient(100deg,rgba(7,16,31,.98) 20%,rgba(7,16,31,.7)),url('/assets/images/backpic/back-2.webp') center/cover}
    .hero:after{content:"";position:absolute;width:420px;height:420px;right:4%;top:-180px;border:1px solid rgba(66,232,208,.2);border-radius:50%;box-shadow:0 0 0 30px rgba(66,232,208,.025),0 0 0 80px rgba(146,119,255,.04)}
    .hero h1{font-size:clamp(38px,6vw,68px);line-height:1.13;max-width:770px;margin:15px 0 20px;font-weight:900;letter-spacing:-.045em}
    .hero p{max-width:690px;color:#c5d0e1;font-size:18px}
    .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;color:var(--cyan);letter-spacing:.18em;font-weight:800}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:28px 0}
    .btn-outline{border:1px solid rgba(66,232,208,.5);border-radius:12px;padding:10px 18px;color:#dceaff;background:rgba(9,20,38,.5)}
    .btn-outline:hover{background:rgba(66,232,208,.12);color:#fff;border-color:var(--cyan)}
    .section{padding:78px 0}
    .section.compact{padding:56px 0}
    .dark-section{background:#091526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-title{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:8px 0 14px;font-weight:850;letter-spacing:-.03em}
    .section-intro{max-width:700px;color:var(--muted);font-size:16px}
    .panel,.feature,.quote,.faq-item,.form-box{background:linear-gradient(145deg,rgba(16,31,54,.94),rgba(10,22,39,.94));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 35px rgba(0,0,0,.12)}
    .feature{padding:26px;height:100%;transition:.25s}
    .feature:hover{transform:translateY(-5px);border-color:rgba(66,232,208,.55);box-shadow:var(--shadow)}
    .feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(66,232,208,.12);color:var(--cyan);display:grid;place-items:center;font-size:21px;margin-bottom:17px}
    .feature h3{font-size:20px;margin:0 0 9px}
    .feature p,.quote p{color:var(--muted);font-size:14px;margin:0}
    .tag{display:inline-block;border:1px solid rgba(66,232,208,.35);color:var(--cyan);border-radius:50px;padding:3px 10px;font-size:12px;margin:3px}
    .visual-split img{width:100%;height:350px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.85)}
    .data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .data-box{padding:21px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.035)}
    .data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}
    .data-box span{color:var(--muted);font-size:13px}
    .check-list{padding:0;margin:20px 0;list-style:none}
    .check-list li{padding:13px 0 13px 32px;border-bottom:1px solid var(--line);position:relative;color:#d4deec}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
    .match-card{padding:22px;border-radius:20px;background:#0b192d;border:1px solid var(--line);height:100%}
    .match-card:hover{border-color:var(--violet);transform:translateY(-3px)}
    .match-meta{font-size:12px;color:var(--cyan);display:flex;justify-content:space-between;gap:10px}
    .match-card h3{font-size:19px;margin:16px 0 9px}
    .match-card p{font-size:14px;color:var(--muted);margin:0}
    .step{position:relative;padding:22px 24px 22px 76px;border-left:1px solid rgba(66,232,208,.35)}
    .step-num{position:absolute;left:-20px;top:20px;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--cyan);color:#06121d;font-weight:900}
    .step h3{margin:0 0 7px;font-size:19px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .quote{padding:26px;height:100%}
    .quote strong{display:block;color:var(--lime);font-size:28px;margin-bottom:5px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .faq-item{padding:20px 23px}
    .faq-item summary{cursor:pointer;font-weight:750;padding-right:20px}
    .faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .cta{padding:52px 0;background:linear-gradient(105deg,#102c3d,#172447);border-top:1px solid rgba(66,232,208,.22);border-bottom:1px solid rgba(66,232,208,.22)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:clamp(26px,4vw,42px);margin:0 0 8px}
    .cta p{color:#c0ccdc;margin:0}
    .site-footer{padding:48px 0 25px;background:#050c17;color:var(--muted);font-size:13px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-size:22px;font-weight:850}
    .footer-title{color:#fff;font-weight:700;margin-bottom:12px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .copyright{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .copyright a{color:#aebbd0}
    .mobile-toggle{border-color:var(--line)!important}
    .mobile-toggle span{filter:invert(1)}
    @media(max-width:991px){.navbar-nav{padding:18px 0}.nav-cta{display:inline-block;margin-top:8px}.hero{padding:62px 0}.section{padding:62px 0}}
    @media(max-width:767px){.section-head,.cta-inner{display:block}.section-head .section-intro{margin-top:12px}.faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.visual-split img{height:260px}.cta .btn-primary{margin-top:22px}}
    @media(max-width:520px){.container{padding:0 17px}.hero h1{font-size:40px}.hero p{font-size:16px}.data-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright div+div{margin-top:12px}.section{padding:52px 0}}