/* roulang page: index */
:root{--blue:#2457d6;--blue-dark:#173eaa;--cyan:#16a6a0;--ink:#25344d;--muted:#6b7890;--soft:#94a1b3;--line:#dfe7f2;--bg:#f5f8fc;--white:#fff;--pale:#edf4ff;--radius:16px;--shadow:0 12px 34px rgba(40,72,125,.09);--small-shadow:0 5px 16px rgba(40,72,125,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.7;font-size:15px;padding-bottom:84px}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}p,h1,h2,h3{margin-top:0}.shell{min-height:100vh}.side-nav{position:fixed;z-index:10;top:0;bottom:0;left:0;width:242px;background:var(--white);border-right:1px solid var(--line);padding:28px 18px;display:flex;flex-direction:column}.brand{display:flex;gap:11px;align-items:center;padding:0 9px 32px;font-weight:800;font-size:18px;line-height:1.25}.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:0 7px 15px rgba(36,87,214,.22)}.nav-label{padding:0 11px 9px;color:var(--soft);font-size:11px;letter-spacing:0}.nav-list{list-style:none;margin:0;padding:0}.nav-list li{margin:4px 0}.nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:10px;color:var(--muted);transition:.2s}.nav-list a:hover,.nav-list a.active{background:var(--pale);color:var(--blue);font-weight:700}.nav-list a.active{border-left:3px solid var(--blue);padding-left:9px}.nav-icon{width:20px;text-align:center;font-size:17px}.quick-panel{margin-top:27px;padding:16px;border:1px solid var(--line);border-radius:13px;background:#f9fbff}.quick-title{font-weight:700;font-size:13px;margin-bottom:11px}.quick-row{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;padding:5px 0}.quick-row strong{color:var(--ink)}.side-bottom{margin-top:auto}.side-cta{display:block;text-align:center;background:var(--blue);color:#fff;padding:12px;border-radius:9px;font-weight:700;transition:.2s;box-shadow:var(--small-shadow)}.side-cta:hover{background:var(--blue-dark);transform:translateY(-2px);color:#fff}.main{margin-left:242px}.mobile-bar{display:none}.container{max-width:1220px;margin:0 auto;padding:0 44px}.hero{padding:72px 0 70px}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:62px;align-items:center}.eyebrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:19px}.badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#e8f8f6;color:#087e79;font-size:12px;font-weight:700}.badge.blue{background:var(--pale);color:var(--blue)}h1{font-size:clamp(36px,4.1vw,59px);line-height:1.15;letter-spacing:0;font-weight:800;margin-bottom:23px;color:#1c2d48}.hero-copy{font-size:17px;line-height:1.9;color:var(--muted);max-width:620px;margin-bottom:29px}.actions{display:flex;flex-wrap:wrap;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(36,87,214,.18)}.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}.btn-secondary{background:#fff;border-color:#cbd8ea;color:var(--blue)}.btn-secondary:hover{background:var(--pale);color:var(--blue-dark)}.hero-note{margin-top:23px;color:var(--soft);font-size:13px}.preview{background:#fff;border:1px solid var(--line);border-radius:20px;padding:23px;box-shadow:var(--shadow);position:relative}.preview:before{content:"";display:block;height:5px;width:58px;border-radius:5px;background:var(--cyan);margin-bottom:20px}.preview-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.preview-title{font-weight:800;font-size:18px}.live{color:#087e79;font-size:12px;font-weight:700}.live:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-right:6px}.feature-tile{background:var(--pale);border-radius:13px;padding:20px;margin-bottom:14px}.feature-tile h3{font-size:21px;margin-bottom:7px}.feature-tile p{color:var(--muted);font-size:13px;margin-bottom:15px}.info-line{display:flex;justify-content:space-between;border-top:1px solid #dce7f6;padding:10px 0;color:var(--muted);font-size:13px}.info-line strong{color:var(--ink)}.progress{height:6px;background:#dce7f6;border-radius:4px;overflow:hidden;margin-top:4px}.progress i{display:block;width:68%;height:100%;background:var(--cyan);border-radius:4px}.section{padding:76px 0}.section.alt{background:#eef4fb}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.kicker{color:var(--blue);font-size:12px;font-weight:800;margin-bottom:8px}.section h2{font-size:31px;line-height:1.3;margin-bottom:8px}.section-intro{color:var(--muted);max-width:650px;margin-bottom:0}.points{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--small-shadow);overflow:hidden}.point{display:grid;grid-template-columns:52px 1fr;gap:15px;padding:27px 29px;border-bottom:1px solid var(--line)}.point:nth-child(odd){border-right:1px solid var(--line)}.point:nth-last-child(-n+2){border-bottom:0}.point-num{font-size:28px;font-weight:800;color:var(--blue)}.point h3{font-size:18px;margin-bottom:5px}.point p{color:var(--muted);font-size:14px;margin:0}.flow-wrap{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}.steps{padding:6px 0}.step{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.step-no{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}.step h3{font-size:16px;margin-bottom:4px}.step p{color:var(--muted);font-size:14px;margin:0}.detail-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow)}.detail-card h3{font-size:22px;margin:17px 0 9px}.detail-meta{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}.detail-meta span{padding:5px 9px;border:1px solid var(--line);border-radius:7px;color:var(--muted);font-size:12px}.detail-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:17px;color:var(--soft);font-size:12px}.signal{padding:38px 0 12px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}.quote{font-size:23px;line-height:1.55;font-weight:700;margin:0}.quote-mark{color:var(--cyan);font-size:40px;vertical-align:-10px;margin-right:7px}.signal-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.signal-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 13px;text-align:center}.signal-item strong{display:block;font-size:21px;color:var(--blue)}.signal-item span{color:var(--muted);font-size:12px}.content-strip{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}.content-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.content-item{display:flex;align-items:center;gap:17px;padding:19px 22px;border-bottom:1px solid var(--line)}.content-item:last-child{border:0}.content-thumb{width:76px;height:54px;border-radius:9px;background:linear-gradient(135deg,#dbe8ff,#c8f1ed);display:grid;place-items:center;color:var(--blue);font-size:22px;flex:none}.content-item h3{font-size:15px;margin:0 0 3px}.content-item p{font-size:12px;color:var(--muted);margin:0}.content-link{margin-left:auto;color:var(--blue);font-weight:700;font-size:13px;white-space:nowrap}.notice{background:#183567;color:#fff;border-radius:var(--radius);padding:26px}.notice h3{font-size:20px;margin-bottom:10px}.notice p{color:#d4e0f5;font-size:14px}.notice .btn{margin-top:9px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:11px}.faq-item summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";float:right;color:var(--blue);font-size:20px;line-height:1}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px}.cta-band{padding:54px 0;background:#e7f0ff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-inner h2{font-size:29px;margin-bottom:7px}.cta-inner p{color:var(--muted);margin:0}.footer{background:#fff;border-top:1px solid var(--line);padding:35px 0 100px}.footer-inner{display:flex;justify-content:space-between;gap:25px}.footer-brand{font-weight:800}.footer-links{display:flex;gap:22px;color:var(--muted);font-size:13px}.footer-links a:hover{color:var(--blue)}.footer-copy{color:var(--soft);font-size:12px}.fixed-cta{position:fixed;z-index:8;bottom:0;left:242px;right:0;background:rgba(255,255,255,.98);border-top:1px solid var(--line);box-shadow:0 -7px 22px rgba(40,72,125,.08);padding:13px 44px}.fixed-inner{max-width:1220px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px}.fixed-status{color:var(--muted);font-size:13px}.fixed-status strong{color:var(--ink);margin-right:8px}@media(max-width:1024px){.side-nav{width:204px}.main{margin-left:204px}.fixed-cta{left:204px}.container{padding:0 30px}.hero-grid{gap:30px}.hero{padding-top:55px}.signal{grid-template-columns:1fr}.content-strip{grid-template-columns:1fr}}
@media(max-width:767px){body{padding-bottom:76px}.side-nav{display:none}.main{margin-left:0}.mobile-bar{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 19px;background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:11}.mobile-brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:16px}.mobile-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);color:#fff;display:grid;place-items:center}.menu-toggle{border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:8px;padding:7px 10px;font-size:18px}.mobile-drawer{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:14px 19px}.mobile-drawer.open{display:block}.mobile-drawer a{display:block;padding:12px 5px;border-bottom:1px solid var(--line);color:var(--muted)}.mobile-drawer a:last-child{border:0}.mobile-drawer a.active{color:var(--blue);font-weight:700}.container{padding:0 20px}.hero{padding:45px 0 48px}.hero-grid,.flow-wrap{grid-template-columns:1fr;gap:30px}.hero-copy{font-size:15px}.hero h1{font-size:38px}.section{padding:52px 0}.section-head{display:block;margin-bottom:24px}.section h2{font-size:26px}.points{grid-template-columns:1fr}.point,.point:nth-child(odd),.point:nth-last-child(-n+2){border-right:0;border-bottom:1px solid var(--line)}.point:last-child{border-bottom:0}.signal-list{grid-template-columns:repeat(3,1fr)}.cta-inner{display:block}.cta-inner .actions{margin-top:20px}.faq-grid{grid-template-columns:1fr}.fixed-cta{left:0;padding:10px 15px}.fixed-status{font-size:12px}.fixed-status span{display:none}.fixed-inner .btn{padding:10px 14px;font-size:13px}.footer{padding-bottom:92px}.footer-inner{display:block}.footer-links{margin:18px 0;flex-wrap:wrap;gap:12px 20px}.content-item{padding:16px}.content-link{font-size:12px}}
@media(max-width:520px){.hero h1{font-size:33px}.actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.preview{padding:18px}.feature-tile h3{font-size:18px}.signal-list{gap:7px}.signal-item{padding:13px 5px}.signal-item strong{font-size:17px}.signal-item span{font-size:11px}.content-thumb{width:60px;height:46px}.content-item h3{font-size:14px}.content-link{display:none}.fixed-status strong{display:block;margin:0}.fixed-inner{gap:8px}}

/* roulang page: category1 */
:root{--blue:#2457d6;--blue-dark:#173eaa;--cyan:#16a6a0;--ink:#25344d;--muted:#6b7890;--soft:#94a1b3;--line:#dfe7f2;--bg:#f5f8fc;--white:#fff;--pale:#edf4ff;--radius:16px;--shadow:0 12px 34px rgba(40,72,125,.09);--small-shadow:0 5px 16px rgba(40,72,125,.07)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;font-size:15px;padding-bottom:76px}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer}
.container{max-width:1220px;margin:0 auto;padding:0 44px}
.mobile-bar{display:none}
.side-nav{position:fixed;z-index:10;top:0;bottom:0;left:0;width:242px;background:#fff;border-right:1px solid var(--line);padding:28px 18px;display:flex;flex-direction:column}
.side-nav-logo{display:block;padding:0 9px 32px;line-height:1.3}
.logo-main{display:block;font-weight:800;font-size:18px}
.logo-sub{display:block;color:var(--soft);font-size:11px;margin-top:5px}
.side-nav-links{list-style:none;margin:0;padding:0}
.side-nav-links li{margin:4px 0}
.side-nav-link{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:10px;color:var(--muted);transition:.2s}
.side-nav-link:hover,.side-nav-link.active{background:var(--pale);color:var(--blue);font-weight:700}
.side-nav-link.active{border-left:3px solid var(--blue);padding-left:9px}
.nav-icon{width:20px;text-align:center;color:var(--blue)}
.side-nav-footer{margin-top:auto;color:var(--soft);font-size:12px;padding:12px 9px}
.main{margin-left:242px}
.breadcrumb{padding-top:34px;color:var(--soft);font-size:13px}
.breadcrumb a{color:var(--blue)}
.page-head{padding:18px 0 34px;display:flex;justify-content:space-between;align-items:end;gap:35px}
.page-head h1{font-size:42px;line-height:1.22;letter-spacing:-1px;margin:0 0 12px;font-weight:800}
.page-head p{color:var(--muted);max-width:680px;margin:0;font-size:16px}
.head-mark{width:100px;height:100px;border-radius:24px;background:#e5efff;color:var(--blue);display:grid;place-items:center;font-size:42px;flex:none}
.overview{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:29px 32px;display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:54px}
.overview-copy{max-width:720px}
.overview h2{font-size:23px;margin:0 0 8px}
.overview p{color:var(--muted);margin:0}
.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
.badge{display:inline-flex;align-items:center;padding:5px 11px;border-radius:999px;background:#e8f8f6;color:#087e79;font-size:12px;font-weight:700}
.badge.blue{background:var(--pale);color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(36,87,214,.18)}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}
.btn-secondary{background:#fff;border-color:#cbd8ea;color:var(--blue)}
.btn-secondary:hover{background:var(--pale);color:var(--blue-dark)}
.btn:focus,.side-nav-link:focus,.menu-toggle:focus{outline:3px solid rgba(36,87,214,.25);outline-offset:2px}
.content-section{padding-bottom:72px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:22px}
.section-head h2{font-size:29px;line-height:1.3;margin:0 0 5px}
.section-head p{margin:0;color:var(--muted)}
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px;display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr auto;gap:12px;align-items:end}
.filter-label{display:block;color:var(--muted);font-size:12px;font-weight:700;margin-bottom:5px}
.filter-bar select,.filter-bar input{height:43px;margin:0;border:1px solid #cbd8ea;border-radius:8px;background:#fff;color:var(--ink);box-shadow:none}
.filter-bar select:focus,.filter-bar input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(36,87,214,.1)}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:22px;align-items:start}
.content-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.list-top{padding:17px 22px;background:#fbfdff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
.content-item{display:flex;align-items:center;gap:17px;padding:20px 22px;border-bottom:1px solid var(--line);transition:.2s}
.content-item:last-child{border:0}
.content-item:hover{background:#fbfdff}
.thumb{width:74px;height:58px;border-radius:11px;background:#e9f1ff;color:var(--blue);display:grid;place-items:center;font-size:24px;flex:none}
.item-body{min-width:0;flex:1}
.item-body h3{font-size:16px;margin:0 0 5px}
.item-body p{color:var(--muted);font-size:13px;margin:0}
.item-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.item-tags span{font-size:11px;color:var(--muted);background:#f1f5fa;border-radius:5px;padding:3px 7px}
.item-action{color:var(--blue);font-size:13px;font-weight:700;white-space:nowrap}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:var(--small-shadow)}
.side-card h3{font-size:18px;margin:0 0 13px}
.side-card p{color:var(--muted);font-size:13px;margin:0 0 16px}
.side-stat{display:flex;justify-content:space-between;padding:11px 0;border-top:1px solid var(--line);font-size:13px}
.side-stat span{color:var(--muted)}
.side-stat strong{color:var(--blue)}
.empty-state{margin-top:15px;background:#f7faff;border:1px dashed #bfd0ec;border-radius:12px;padding:25px;text-align:center;color:var(--muted);font-size:13px}
.faq-section{background:#eef4fb;padding:70px 0}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:11px}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";float:right;color:var(--blue);font-size:20px;line-height:1}
.faq-item[open] summary:after{content:"−"}
.faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px}
.cta-band{padding:54px 0;background:#e7f0ff}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-inner h2{font-size:29px;margin:0 0 7px}
.cta-inner p{color:var(--muted);margin:0}
.footer{background:#fff;border-top:1px solid var(--line);padding:35px 0 100px}
.footer-inner{display:flex;justify-content:space-between;gap:25px;align-items:center}
.footer-brand{font-weight:800}
.footer-links{display:flex;gap:22px;color:var(--muted);font-size:13px}
.footer-links a:hover{color:var(--blue)}
.footer-copy{color:var(--soft);font-size:12px}
.fixed-cta{position:fixed;z-index:8;bottom:0;left:242px;right:0;background:rgba(255,255,255,.98);border-top:1px solid var(--line);box-shadow:0 -7px 22px rgba(40,72,125,.08);padding:13px 44px}
.fixed-inner{max-width:1220px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px}
.fixed-inner span{color:var(--muted);font-size:13px}
@media(max-width:1050px){
.side-nav{width:204px}.main{margin-left:204px}.fixed-cta{left:204px}.container{padding:0 30px}.filter-bar{grid-template-columns:1fr 1fr 1fr}.filter-bar .filter-submit{grid-column:span 3}
}
@media(max-width:760px){
body{padding-bottom:82px}.side-nav{display:none}.main{margin-left:0}.mobile-bar{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 19px;background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:11}
.mobile-brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:15px}.mobile-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);color:#fff;display:grid;place-items:center}.menu-toggle{border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:8px;padding:6px 10px;font-size:18px}
.mobile-drawer{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:10px 19px;z-index:10}.mobile-drawer.open{display:block}.mobile-drawer a{display:block;padding:11px 10px;color:var(--muted);border-radius:8px}.mobile-drawer a.active,.mobile-drawer a:hover{background:var(--pale);color:var(--blue);font-weight:700}
.container{padding:0 19px}.breadcrumb{padding-top:25px}.page-head{padding:15px 0 27px;display:block}.page-head h1{font-size:32px}.head-mark{display:none}.overview{display:block;padding:23px;margin-bottom:42px}.overview .btn{margin-top:20px}.content-layout{display:block}.side-card{margin-top:16px}.filter-bar{grid-template-columns:1fr 1fr}.filter-bar .filter-submit{grid-column:span 2}.content-item{padding:17px 15px;align-items:flex-start}.thumb{width:58px;height:49px}.item-action{font-size:12px}.faq-grid{grid-template-columns:1fr}.faq-section{padding:52px 0}.section-head h2{font-size:25px}.cta-inner{display:block}.cta-inner .btn{margin-top:20px}.footer-inner{display:block}.footer-links{margin:20px 0;flex-wrap:wrap;gap:13px 20px}.fixed-cta{left:0;padding:11px 19px}.fixed-inner span{font-size:12px}.fixed-inner .btn{padding:10px 14px;font-size:13px}
}
@media(max-width:520px){
.filter-bar{grid-template-columns:1fr}.filter-bar .filter-submit{grid-column:auto}.filter-bar .btn{width:100%}.content-item{gap:10px}.item-body h3{font-size:14px}.item-body p{font-size:12px}.item-action{display:none}.fixed-inner span{max-width:170px}.fixed-inner .btn{flex:none}
}