/* roulang page: index */
:root{--blue:#185cc5;--blue-dark:#123568;--cyan:#267e8e;--ink:#172c49;--muted:#63748b;--line:#e0e8f2;--bg:#f4f7fc;--white:#fff;--pale:#eaf2ff;--radius:18px;--shadow:0 12px 35px rgba(28,63,110,.07);--space:80px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:135px}body{margin:0;background:var(--white);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:inherit;color:var(--ink);font-weight:750}h1{font-size:clamp(32px,4vw,54px);line-height:1.25;letter-spacing:-1.5px}h2{font-size:30px;line-height:1.4;letter-spacing:-.6px}h3{font-size:19px;line-height:1.5}p{color:var(--muted);font-size:15px}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s,box-shadow .2s}a:hover{color:var(--blue)}img{display:block;width:100%;height:auto}button,input,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #76a9ff;outline-offset:4px}a:active,button:active{transform:translateY(1px)}.grid-container{max-width:1200px;padding-right:28px;padding-left:28px}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 3px 16px #19365c05}.topline{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:78px}.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:800;white-space:nowrap}.brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--blue);color:white;font-size:23px;box-shadow:0 5px 12px #185cc526}.brand small{font-size:12px;font-weight:500;color:var(--muted);display:block;line-height:1.2;letter-spacing:2px}.header-note{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}.dot{width:7px;height:7px;display:inline-block;background:var(--cyan);border-radius:50%}.tabs-nav{display:flex;gap:12px;overflow-x:auto;min-height:52px;align-items:center;scrollbar-width:thin}.tabs-nav a{padding:9px 22px;border-radius:9px;font-size:14px;font-weight:650;white-space:nowrap}.tabs-nav a:hover{background:var(--bg)}.tabs-nav .active{background:var(--pale);color:var(--blue)}main section{padding:var(--space) 0}.soft{background:var(--bg)}.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;margin-bottom:30px}.section-head>div:first-child{flex:0 0 36%}.section-head>p{flex:1;max-width:650px}.eyebrow{display:block;color:var(--blue);font-size:12px;letter-spacing:2px;font-weight:750;margin-bottom:10px}.badge{display:inline-block;padding:5px 11px;border-radius:6px;background:var(--pale);color:var(--blue);font-size:12px;line-height:1.5;font-weight:600}.hero{position:relative;isolation:isolate;padding:68px 0 38px;overflow:hidden;background:#f1f6ff}.hero:before{content:"";position:absolute;inset:0;z-index:-2;background:url('/assets/images/41e766696dc023db.png') center/cover no-repeat;opacity:.09}.hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#f1f6fff5,#f1f6ffb3)}.hero-content{max-width:900px}.hero h1{margin:17px 0 22px;max-width:850px}.hero h1 span{color:var(--blue)}.hero .intro{max-width:850px;font-size:16px;line-height:2;color:#4d627f}.hero-actions{display:flex;align-items:center;gap:22px;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;margin:0;padding:14px 23px;border:1px solid var(--blue);border-radius:9px;background:var(--blue);color:white;font-size:14px;font-weight:650;line-height:1.4;transition:all .2s}.button:hover,.button:focus{background:var(--blue-dark);color:white;border-color:var(--blue-dark);box-shadow:0 6px 18px #185cc524}.hero-sub{font-size:12px;color:var(--muted)}.check-strip{display:flex;flex-wrap:wrap;gap:16px 40px;margin-top:37px;padding-top:23px;border-top:1px solid #ccdaee}.check-strip span{font-size:13px;color:#425e7b}.check-strip b{color:var(--cyan);margin-right:8px}.card{display:block;margin-bottom:0;border:1px solid var(--line);background:white;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.card-body{padding:26px}.card h3{margin-bottom:12px}.card p{line-height:1.9}.equal>.cell{display:flex}.equal>.cell>.card{width:100%}.calendar{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:white}.calendar-row{display:grid;grid-template-columns:140px 1fr 190px;gap:24px;align-items:center;padding:22px 28px;border-bottom:1px solid var(--line)}.calendar-row:last-child{border:0}.calendar-row.heading{padding-top:13px;padding-bottom:13px;background:#edf3fb;color:var(--muted);font-size:12px}.calendar-row strong{font-size:15px}.calendar-row p{font-size:14px}.calendar-status{text-align:right;font-size:12px;color:var(--cyan)}.topic-icon{height:43px;width:43px;border-radius:12px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-size:17px;font-weight:800;margin-bottom:23px}.topic-channel{display:flex;align-items:center;justify-content:space-between;gap:25px;border:1px solid #cdddf3;background:var(--pale);padding:22px 27px;border-radius:var(--radius);margin-top:24px}.topic-channel p{margin-top:5px}.text-link{display:inline-flex;align-items:center;gap:14px;color:var(--blue);font-size:14px;font-weight:700;white-space:nowrap}.text-link:hover{gap:20px}.editorial{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:white;box-shadow:var(--shadow)}.editorial-image{position:relative;min-height:340px}.editorial-image img{width:100%;height:100%;object-fit:cover}.editorial-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#112d5333,transparent)}.editorial-copy{padding:39px;align-self:center}.editorial-copy h3{font-size:25px;margin:16px 0}.editorial-copy p+p{margin-top:15px}.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}.compare-box{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:white}.compare-box.highlight{border-color:#b5ccec;background:#f1f6ff}.compare-box ul{padding:0;margin:18px 0 0;list-style:none}.compare-box li{padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}.compare-box li strong{display:block;color:var(--ink);font-size:15px}.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.timeline-item{padding-top:24px;border-top:3px solid #d5e3f6}.timeline-item span{font-size:13px;font-weight:750;color:var(--blue)}.timeline-item h3{margin:10px 0}.news-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.news-card{transition:transform .2s,box-shadow .2s}.news-card:hover{transform:translateY(-4px);box-shadow:0 16px 35px #20497915}.news-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:18px;color:var(--muted);font-size:12px}.news-card h3{font-size:18px}.news-card p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.news-arrow{margin-top:21px;color:var(--blue);font-size:13px;font-weight:650}.empty{padding:35px;border:1px dashed #bfcee2;border-radius:var(--radius);background:white;color:var(--muted)}.media-card img{height:220px;object-fit:cover;transition:transform .4s}.media-cover{overflow:hidden}.media-card:hover img{transform:scale(1.035)}.media-card .badge{margin-bottom:14px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:28px}.metric{padding:25px;border-radius:var(--radius);border:1px solid var(--line);background:white}.metric strong{font-size:38px;line-height:1.3;display:block;color:var(--blue);font-weight:750}.metric span{font-size:13px;color:var(--muted)}.analysis-note{display:grid;grid-template-columns:1fr 1fr;gap:36px;border-radius:var(--radius);background:var(--blue-dark);padding:32px;color:white}.analysis-note h3{color:white;margin-bottom:12px}.analysis-note p{color:#d4e1f2}.dimension{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid #ffffff25;font-size:13px}.dimension:last-child{border:0}.dimension span:last-child{color:#b6d8ef}.assurance-item{display:flex;gap:16px;padding:25px 0;border-bottom:1px solid var(--line)}.assurance-item:first-child{padding-top:0}.assurance-item:last-child{border:0;padding-bottom:0}.assurance-num{flex:0 0 37px;height:37px;display:grid;place-items:center;border-radius:50%;background:var(--pale);color:var(--blue);font-size:13px;font-weight:700}.assurance-item h3{font-size:17px;margin-bottom:7px}.risk-box{padding:30px;border-radius:var(--radius);background:#edf4fd;border:1px solid #d4e3f6;height:100%}.risk-box h3{font-size:23px;margin:15px 0}.risk-box p+p{margin-top:18px}.faq-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:65px}.faq-intro p{margin-top:17px}.faq-list details{border-bottom:1px solid var(--line);padding:21px 0}.faq-list details:first-child{padding-top:0}.faq-list summary{list-style:none;cursor:pointer;font-size:16px;font-weight:700;display:flex;justify-content:space-between;gap:20px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--blue);font-size:22px;line-height:1}.faq-list details[open] summary:after{content:"−"}.faq-list details p{padding:15px 30px 0 0;font-size:14px}.preference{padding:44px;border-radius:22px;background:#eaf2ff;border:1px solid #d7e5fa;display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center}.preference p{margin-top:15px}.preference label{font-size:13px;font-weight:650;color:var(--ink);margin-bottom:8px;display:block}.preference select{height:49px;width:100%;border:1px solid #bacce6;background-color:white;border-radius:9px;color:var(--ink);box-shadow:none;margin-bottom:14px;padding:0 35px 0 14px}.form-row{display:flex;gap:12px;align-items:center}.privacy-note{font-size:12px!important;color:#60738f!important}.form-status{min-height:24px;font-size:13px;margin-top:10px;color:var(--blue);display:block}.site-footer{padding:45px 0 24px;background:#122842;color:#d1ddec}.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;padding-bottom:30px;border-bottom:1px solid #ffffff1c}.site-footer .brand{color:white}.site-footer .brand small{color:#a4b8d0}.footer-description{max-width:420px;margin-top:18px;font-size:13px;color:#afc0d5}.footer-links{display:flex;gap:25px;flex-wrap:wrap;font-size:13px;padding-top:10px}.footer-links a:hover{color:white}.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;font-size:12px;color:#94aac4}.mt24{margin-top:24px}
@media(min-width:1025px){.grid-margin-x{margin-left:-12px;margin-right:-12px}.grid-margin-x>.cell{margin-left:12px;margin-right:12px}.grid-margin-x>.medium-4{width:calc(33.33333% - 24px)}.grid-margin-x>.medium-6{width:calc(50% - 24px)}}
@media(max-width:1024px){:root{--space:60px}.hero{padding-top:52px}.section-head{gap:25px}.editorial-copy{padding:28px}.metrics{gap:12px}.metric{padding:20px}.preference{gap:28px;padding:30px}.grid-margin-x>.cell{margin-bottom:22px}.faq-layout{gap:35px}.calendar-row{grid-template-columns:110px 1fr 130px;gap:15px}}
@media(max-width:768px){:root{--space:48px}.grid-container{padding-left:22px;padding-right:22px}.header-note{max-width:180px;line-height:1.5;text-align:right}.topline{min-height:71px}.tabs-nav{min-height:49px}.hero h1{font-size:38px}.hero .intro{font-size:15px}.section-head{display:block}.section-head>p{margin-top:16px}.editorial{grid-template-columns:1fr}.editorial-image{min-height:240px;max-height:300px}.compare{gap:16px}.timeline{gap:20px}.metrics{grid-template-columns:repeat(2,1fr)}.analysis-note{grid-template-columns:1fr;gap:22px}.faq-layout{grid-template-columns:1fr;gap:28px}.preference{grid-template-columns:1fr;gap:25px}.footer-top{flex-direction:column}.calendar-row{grid-template-columns:90px 1fr}.calendar-status{grid-column:2;text-align:left}.calendar-row.heading{display:none}.media-card img{height:210px}}
@media(max-width:520px){.grid-container{padding-left:18px;padding-right:18px}.brand{font-size:21px;gap:9px}.brand-icon{height:37px;width:37px}.brand small{font-size:10px}.header-note{font-size:11px;max-width:125px}.tabs-nav a{padding:8px 17px}.hero{padding-top:35px}.hero h1{font-size:32px;letter-spacing:-.8px}.hero .intro{line-height:1.9}.hero-actions{gap:14px;align-items:flex-start;flex-direction:column}.check-strip{gap:12px 21px}.check-strip span{font-size:12px}h2{font-size:25px}.calendar-row{padding:20px 17px;grid-template-columns:70px 1fr;gap:9px}.topic-channel{padding:22px;align-items:flex-start;flex-direction:column;gap:15px}.compare,.timeline{grid-template-columns:1fr}.compare-box{padding:23px}.timeline{gap:24px}.editorial-copy{padding:25px}.editorial-copy h3{font-size:22px}.editorial-image{min-height:200px}.metrics{gap:12px}.metric{padding:19px}.metric strong{font-size:32px}.analysis-note{padding:24px}.preference{padding:25px}.news-top{gap:16px;align-items:flex-start}.news-top .text-link{font-size:12px}.form-row{align-items:stretch;flex-direction:column}.footer-links{gap:18px}.footer-bottom{font-size:11px;overflow-wrap:anywhere}.risk-box{padding:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: article */
:root{--blue:#185cc5;--blue-dark:#123568;--cyan:#267e8e;--ink:#172c49;--muted:#63748b;--line:#e0e8f2;--bg:#f4f7fc;--white:#fff;--pale:#eaf2ff;--radius:18px;--shadow:0 12px 35px rgba(28,63,110,.07);--space:80px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px}
body{margin:0;background:var(--white);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s,box-shadow .2s}
a:hover{color:var(--blue)}
img{display:block;max-width:100%;height:auto}
button,input,select{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #76a9ff;outline-offset:4px}
a:active,button:active{transform:translateY(1px)}
h1,h2,h3{font-family:inherit;color:var(--ink);font-weight:750;letter-spacing:-.025em}
h1{font-size:clamp(28px,3.5vw,44px);line-height:1.4}
h2{font-size:28px;line-height:1.5;margin:0 0 18px}
h3{font-size:18px;line-height:1.6;margin:0 0 10px}
p{margin:0 0 16px}
.grid-container{max-width:1200px;padding-right:28px;padding-left:28px}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 3px 16px #19365c05}
.topline{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 0 17px}
.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:800;white-space:nowrap}
.brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--blue);color:white;font-size:23px;box-shadow:0 5px 12px #185cc526}
.brand small{font-size:12px;font-weight:500;color:var(--muted);display:block;line-height:1.2;letter-spacing:2px}
.header-note{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.dot{width:7px;height:7px;display:inline-block;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px #267e8e12;flex-shrink:0}
.tabs-nav{display:flex;gap:12px;overflow-x:auto;min-height:52px;align-items:center;scrollbar-width:thin;padding-bottom:7px}
.tabs-nav a{padding:9px 22px;border-radius:9px;font-size:14px;font-weight:650;white-space:nowrap}
.tabs-nav a:hover{background:var(--bg)}
.tabs-nav .active{background:var(--pale);color:var(--blue)}
main section{padding:var(--space) 0}
.eyebrow{display:block;color:var(--blue);font-size:12px;letter-spacing:2px;font-weight:750;margin-bottom:10px}
.badge{display:inline-block;padding:5px 11px;border-radius:6px;background:var(--pale);color:var(--blue);font-size:12px;line-height:1.5;font-weight:600}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;margin:0;padding:14px 23px;border:1px solid var(--blue);border-radius:9px;background:var(--blue);color:white;font-size:14px;font-weight:650;line-height:1.4;transition:all .2s}
.button:hover,.button:focus{background:var(--blue-dark);color:white;border-color:var(--blue-dark);box-shadow:0 6px 18px #185cc524}
.button.secondary{background:white;border-color:var(--line);color:var(--blue)}
.button.secondary:hover{border-color:var(--blue);background:var(--pale)}
.card{display:block;margin-bottom:0;border:1px solid var(--line);background:white;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card-body{padding:26px}
.text-link{display:inline-flex;align-items:center;gap:14px;color:var(--blue);font-size:14px;font-weight:700}
.text-link:hover{gap:20px}
.article-hero{background:#f1f6ff;border-bottom:1px solid var(--line);padding:40px 0 0}
.breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-bottom:30px}
.breadcrumb span[aria-hidden]{color:#a4b5cd}
.hero-grid{align-items:center}
.article-hero h1{margin:15px 0 22px;overflow-wrap:anywhere}
.hero-summary{color:#4d627f;font-size:15px;line-height:2;overflow-wrap:anywhere;max-width:740px}
.hero-media{margin:0 0 28px;border-radius:var(--radius);overflow:hidden;border:6px solid white;box-shadow:var(--shadow);background:#e3ecf8}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.article-stats{margin-top:32px;display:grid;grid-template-columns:1.2fr 1fr 1fr;border-top:1px solid #d9e4f3}
.stat{padding:19px 24px 21px 0}
.stat+.stat{padding-left:26px;border-left:1px solid #d9e4f3}
.stat span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
.stat strong{display:block;font-weight:650;font-size:14px;overflow-wrap:anywhere}
.article-section{background:var(--bg);padding:48px 0 64px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:28px;align-items:start}
.article-paper{padding:40px 46px}
.article-label{display:flex;align-items:center;gap:12px;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article-label h2{font-size:20px;margin:0}
.article-label span{font-size:12px;color:var(--muted)}
.article-content{font-size:16px;line-height:2.05;overflow-wrap:anywhere;color:#344a65}
.article-content p{margin:0 0 24px}
.article-content h2{font-size:25px;margin:38px 0 18px;padding-left:14px;border-left:4px solid var(--blue)}
.article-content h3{font-size:20px;margin:30px 0 14px}
.article-content h4{font-size:17px;font-weight:700;margin:24px 0 12px}
.article-content ul,.article-content ol{margin:16px 0 24px 24px}
.article-content li{padding-left:4px;margin-bottom:8px}
.article-content a{color:var(--blue);text-decoration:underline;text-underline-offset:4px}
.article-content img{height:auto;max-width:100%;margin:25px auto;border-radius:12px}
.article-content blockquote{border-left:3px solid var(--cyan);border-radius:0 10px 10px 0;background:#eef6f8;padding:22px 25px;margin:26px 0;color:#3b5c70}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{display:block;overflow-x:auto;width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-content th,.article-content td{padding:13px 16px;border:1px solid var(--line);min-width:100px;text-align:left}
.article-content th{background:var(--pale);color:var(--blue-dark)}
.article-content pre{overflow-x:auto;padding:20px;border-radius:10px;background:var(--bg)}
.article-content iframe,.article-content video{max-width:100%}
.article-aside{display:grid;gap:20px}
.aside-card{padding:24px}
.aside-card h3{font-size:16px}
.aside-card p{font-size:13px;color:var(--muted);margin-bottom:0}
.aside-list{list-style:none;margin:18px 0 0;padding:0}
.aside-list li{display:flex;gap:10px;font-size:13px;padding:12px 0;border-top:1px solid var(--line)}
.aside-list li:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cyan);margin-top:10px;flex-shrink:0}
.aside-card .text-link{margin-top:20px}
.statement{padding:38px 0;border-bottom:1px solid var(--line)}
.statement-row{display:flex;gap:28px;align-items:start}
.statement h2{font-size:20px;min-width:160px;margin-bottom:0}
.statement p{font-size:14px;color:var(--muted);max-width:820px;margin-bottom:0}
.assurance-section{padding:58px 0}
.section-head{display:flex;justify-content:space-between;align-items:start;gap:40px;margin-bottom:28px}
.section-head p{max-width:540px;color:var(--muted);font-size:14px;margin-bottom:0}
.safety-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;height:100%;transition:box-shadow .2s,border-color .2s}
.safety-card:hover{border-color:#c4d6ee;box-shadow:var(--shadow)}
.safety-number{display:inline-block;color:var(--cyan);font-size:12px;letter-spacing:1px;margin-bottom:18px;font-weight:750}
.safety-card p{font-size:14px;color:var(--muted);margin-bottom:0}
.faq-section{background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:58px 0}
.faq-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:65px}
.faq-intro p{margin-top:17px;color:var(--muted);font-size:14px}
.faq-list details{border-bottom:1px solid var(--line);padding:21px 0}
.faq-list details:first-child{padding-top:0}
.faq-list summary{list-style:none;cursor:pointer;font-size:16px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";color:var(--blue);font-size:22px;line-height:1.2;flex-shrink:0}
.faq-list details[open] summary:after{content:"−"}
.faq-list details p{padding:15px 30px 0 0;font-size:14px;margin:0;color:var(--muted)}
.article-close{padding:42px 0}
.close-row{display:flex;justify-content:space-between;align-items:center;gap:28px}
.close-row h2{font-size:22px;margin-bottom:6px}
.close-row p{font-size:14px;color:var(--muted);margin:0}
.close-actions{display:flex;gap:12px;flex-shrink:0}
.not-found{text-align:center;padding:80px 24px;background:var(--bg)}
.not-found h2{margin-bottom:24px}
.site-footer{padding:45px 0 24px;background:#122842;color:#d1ddec}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;padding-bottom:30px;border-bottom:1px solid #ffffff1c}
.site-footer .brand{color:white}
.site-footer .brand small{color:#a4b8d0}
.footer-description{max-width:420px;margin-top:18px;font-size:13px;color:#afc0d5}
.footer-links{display:flex;gap:25px;flex-wrap:wrap;font-size:13px;padding-top:10px}
.footer-links a:hover{color:white}
.footer-bottom{display:flex;justify-content:space-between;gap:22px;margin-top:23px;color:#a4b8d0;font-size:12px}
@media(min-width:1025px){.article-aside{position:sticky;top:160px}}
@media(max-width:1024px){:root{--space:56px}.article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:20px}.article-paper{padding:30px}.faq-layout{gap:35px}.hero-media{border-width:4px}.section-head{gap:24px}.article-stats{margin-top:24px}}
@media(max-width:768px){.grid-container{padding-left:22px;padding-right:22px}.article-hero{padding-top:26px}.hero-media{margin:24px 0 4px;max-width:100%}.hero-media img{aspect-ratio:16/7}.breadcrumb{margin-bottom:22px}.article-layout{grid-template-columns:1fr}.article-aside{grid-template-columns:1fr 1fr}.article-paper{padding:30px}.article-section{padding:30px 0 42px}.section-head,.statement-row{display:block}.statement h2{margin-bottom:16px}.faq-layout{grid-template-columns:1fr;gap:24px}.section-head p{margin-top:14px}.safety-card{margin-bottom:20px;height:auto}.assurance-section,.faq-section{padding:42px 0}.close-row{align-items:flex-start;flex-direction:column}.footer-top,.footer-bottom{flex-direction:column}.footer-links{padding-top:0}.footer-bottom{gap:10px}.article-stats{grid-template-columns:1.2fr 1fr 1fr}.stat+.stat{padding-left:16px}}
@media(max-width:520px){:root{--space:40px}.grid-container{padding-left:18px;padding-right:18px}.topline{padding:16px 0 13px;gap:12px}.brand{font-size:21px;gap:9px}.brand-icon{width:38px;height:38px;font-size:21px}.brand small{font-size:10px;letter-spacing:1px}.header-note{font-size:11px;gap:8px}.tabs-nav{gap:6px;min-height:48px}.tabs-nav a{padding:8px 17px;font-size:13px}.hero-summary{font-size:14px}.article-stats{grid-template-columns:1fr 1fr}.stat{padding:16px 12px 16px 0}.stat+.stat{padding-left:14px}.stat:last-child{grid-column:1/-1;border-left:0;border-top:1px solid #d9e4f3;padding-left:0}.stat strong{font-size:13px}.article-paper{padding:25px 21px;border-radius:14px}.article-content{font-size:15px}.article-content h2{font-size:22px}.article-content h3{font-size:18px}.article-aside{grid-template-columns:1fr}.article-label{gap:10px;flex-wrap:wrap}.faq-list summary{font-size:15px}.close-actions{width:100%;flex-wrap:wrap}.close-actions .button{flex:1;padding:13px 15px}.footer-links{gap:20px}h2{font-size:24px}.footer-bottom{font-size:11px;overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
@media print{.site-header,.site-footer,.article-aside,.faq-section,.article-close,.assurance-section{display:none}.article-layout{display:block}.article-paper{box-shadow:none;border:0;padding:0}.article-hero,.article-section{background:white}.hero-media{display:none}}

/* roulang page: category1 */
:root{--blue:#185cc5;--blue-dark:#123568;--cyan:#267e8e;--ink:#172c49;--muted:#63748b;--line:#e0e8f2;--bg:#f4f7fc;--white:#fff;--pale:#eaf2ff;--radius:18px;--shadow:0 12px 35px rgba(28,63,110,.07);--space:80px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:145px}
body{margin:0;background:var(--white);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s,box-shadow .2s}
a:hover{color:var(--blue)}
img{display:block;width:100%;height:auto}
button,input,select{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #76a9ff;outline-offset:4px}
a:active,button:active{transform:translateY(1px)}
h1,h2,h3,p{margin:0}
h1,h2,h3{font-family:inherit;color:var(--ink);font-weight:750;line-height:1.4}
h1{font-size:clamp(30px,4vw,46px);letter-spacing:-1px}
h2{font-size:clamp(25px,3vw,32px);letter-spacing:-.5px}
h3{font-size:18px}
p{color:var(--muted);font-size:15px}
.grid-container{max-width:1200px;padding-right:28px;padding-left:28px}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 3px 16px #19365c05}
.topline{display:flex;align-items:center;justify-content:space-between;min-height:86px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:800;white-space:nowrap}
.brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--blue);color:white;font-size:23px;box-shadow:0 5px 12px #185cc526}
.brand small{font-size:12px;font-weight:500;color:var(--muted);display:block;line-height:1.2;letter-spacing:2px}
.header-note{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);line-height:1.6}
.dot{width:7px;height:7px;background:var(--cyan);border-radius:50%;display:inline-block;flex-shrink:0}
.tabs-nav{display:flex;gap:12px;overflow-x:auto;min-height:52px;align-items:center;scrollbar-width:thin}
.tabs-nav a{padding:9px 22px;border-radius:9px;font-size:14px;font-weight:650;white-space:nowrap}
.tabs-nav a:hover{background:var(--bg)}
.tabs-nav .active{background:var(--pale);color:var(--blue)}
main section{padding:var(--space) 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;margin-bottom:30px}
.section-head>div:first-child{flex:0 0 42%}
.section-head>p{flex:1;max-width:650px;padding-top:8px}
.eyebrow{display:block;color:var(--blue);font-size:12px;letter-spacing:2px;font-weight:750;margin-bottom:10px}
.badge{display:inline-block;padding:5px 11px;border-radius:6px;background:var(--pale);color:var(--blue);font-size:12px;line-height:1.5;font-weight:600}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;margin:0;padding:14px 23px;border:1px solid var(--blue);border-radius:9px;background:var(--blue);color:white;font-size:14px;font-weight:650;line-height:1.4;transition:all .2s}
.button:hover,.button:focus{background:var(--blue-dark);color:white;border-color:var(--blue-dark);box-shadow:0 6px 18px #185cc524}
.button.secondary{background:white;border-color:var(--line);color:var(--blue)}
.button.secondary:hover{background:var(--pale);border-color:#bad0f1}
.card{display:block;margin-bottom:0;border:1px solid var(--line);background:white;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card-body{padding:26px}
.card h3{margin-bottom:12px}
.card p{line-height:1.9}
.equal>.cell{display:flex}
.equal>.cell>.card{width:100%}
.text-link{display:inline-flex;align-items:center;gap:14px;color:var(--blue);font-size:14px;font-weight:700}
.text-link:hover{gap:20px}
.soft-section{background:var(--bg);border-top:1px solid #edf1f7;border-bottom:1px solid #edf1f7}
.channel-hero{background:#f1f6ff;position:relative;overflow:hidden;padding:48px 0 42px}
.channel-hero:before{content:"";position:absolute;top:0;right:0;width:43%;height:100%;background:url('/assets/images/41e766696dc023db.png') center/cover;opacity:.045;pointer-events:none}
.channel-hero .grid-container{position:relative}
.channel-kicker{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:12px;margin-bottom:26px}
.channel-kicker span+span:before{content:"/";margin-right:14px;color:#a7b8ce}
.profile-layout{display:grid;grid-template-columns:1fr 330px;gap:65px;align-items:center}
.profile-title{display:flex;gap:20px;align-items:center;margin-bottom:22px}
.profile-avatar{width:72px;height:72px;display:grid;place-items:center;border-radius:22px;background:white;border:1px solid #d9e5f5;box-shadow:var(--shadow);font-size:34px;font-weight:800;color:var(--blue);flex-shrink:0}
.profile-title .eyebrow{margin-bottom:4px}
.hero-intro{max-width:680px;font-size:16px;line-height:1.95}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:25px}
.hero-note{margin-top:16px;font-size:12px;max-width:640px}
.channel-panel{padding:25px;background:#ffffffdf;border:1px solid white;border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-label{font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:space-between}
.panel-word{font-size:26px;font-weight:750;margin:12px 0 16px;color:var(--blue-dark)}
.panel-line{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:12px 0;font-size:13px}
.panel-line:last-child{padding-bottom:0}
.panel-line span{color:var(--muted)}
.panel-line strong{font-weight:650}
.metric-strip{display:grid;grid-template-columns:repeat(3,1fr);margin-top:38px;border-top:1px solid #d9e4f4;padding-top:23px;gap:24px}
.metric-item{display:flex;gap:14px;align-items:center}
.metric-item strong{font-size:28px;line-height:1;color:var(--blue);font-variant-numeric:tabular-nums}
.metric-item span{font-size:13px;color:var(--muted)}
.metric-item b{display:block;color:var(--ink);font-size:14px;font-weight:650}
.topic-grid{row-gap:24px}
.topic-icon{width:40px;height:40px;border-radius:12px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-size:14px;font-weight:750;margin-bottom:22px}
.topic-card{transition:transform .2s,box-shadow .2s}
.topic-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px #20497912}
.topic-card .topic-tag{font-size:12px;color:var(--cyan);margin-top:20px;display:block}
.comparison{overflow:hidden;background:white;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.compare-row{display:grid;grid-template-columns:160px 1fr 1fr;gap:28px;padding:23px 28px;border-bottom:1px solid var(--line);align-items:start}
.compare-row:last-child{border:0}
.compare-row.heading{background:#eaf1fb;font-size:13px;color:var(--muted);padding-top:15px;padding-bottom:15px}
.compare-row h3{font-size:15px}
.compare-row p{font-size:14px}
.compare-row p:last-child{color:var(--blue-dark)}
.milestone-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.editorial-image{margin:26px 0 0;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:var(--bg)}
.editorial-image img{width:100%;height:250px;object-fit:cover}
.editorial-image figcaption{font-size:12px;color:var(--muted);padding:12px 17px;background:var(--bg)}
.timeline{padding-left:0;margin:0;list-style:none}
.timeline-item{position:relative;padding:0 0 28px 42px;border-left:1px solid #cbdcf1;margin-left:15px}
.timeline-item:last-child{padding-bottom:0;border-left-color:transparent}
.timeline-item:before{content:"";position:absolute;left:-6px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px var(--pale)}
.timeline-item span{font-size:12px;font-weight:750;color:var(--blue);letter-spacing:1px}
.timeline-item h3{margin:8px 0}
.timeline-item p{font-size:14px}
.assurance-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:start}
.assurance-panel{padding:34px;background:var(--blue-dark);border-radius:var(--radius);color:white}
.assurance-panel h2{color:white;margin-bottom:16px}
.assurance-panel p{color:#ccdaec}
.assurance-panel .eyebrow{color:#9dbff4}
.boundary-note{margin-top:28px;border-top:1px solid #ffffff26;padding-top:20px;font-size:13px;color:#ccdaec}
.assurance-item{display:flex;gap:16px;padding:25px 0;border-bottom:1px solid var(--line)}
.assurance-item:first-child{padding-top:0}
.assurance-item:last-child{border:0;padding-bottom:0}
.assurance-item h3{font-size:17px;margin-bottom:7px}
.assurance-item .topic-icon{flex-shrink:0;margin:0}
.assurance-item p{font-size:14px}
.quick-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}
.quick-list{margin:0;list-style:none;border-top:1px solid var(--line)}
.quick-list li{padding:18px 0;display:grid;grid-template-columns:150px 1fr;gap:20px;border-bottom:1px solid var(--line)}
.quick-list strong{font-size:15px;font-weight:650}
.quick-list span{font-size:14px;color:var(--muted)}
.faq-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:65px}
.faq-intro p{margin-top:17px}
.faq-list details{border-bottom:1px solid var(--line);padding:21px 0}
.faq-list details:first-child{padding-top:0}
.faq-list summary{list-style:none;cursor:pointer;font-size:16px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
.faq-list summary:hover{color:var(--blue)}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";color:var(--blue);font-size:22px;line-height:1;flex-shrink:0}
.faq-list details[open] summary:after{content:"−"}
.faq-list details p{padding:15px 30px 0 0;font-size:14px}
.channel-cta{padding-top:0}
.cta-box{padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:35px;border:1px solid #d7e5f8;border-radius:var(--radius);background:var(--pale)}
.cta-box p{margin-top:12px;max-width:690px}
.cta-box .button{flex-shrink:0}
.site-footer{padding:45px 0 24px;background:#122842;color:#d1ddec}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;padding-bottom:30px;border-bottom:1px solid #ffffff1c}
.site-footer .brand{color:white}
.site-footer .brand small{color:#a4b8d0}
.footer-description{max-width:420px;margin-top:18px;font-size:13px;color:#afc0d5}
.footer-links{display:flex;gap:25px;flex-wrap:wrap;font-size:13px;padding-top:10px}
.footer-links a:hover{color:white}
.footer-bottom{display:flex;justify-content:space-between;gap:25px;padding-top:22px;color:#9eb3cc;font-size:12px}
@media(min-width:1025px){.topic-grid>.cell{width:25%}}
@media(max-width:1024px){
:root{--space:60px}
.profile-layout{grid-template-columns:1fr 280px;gap:30px}
.profile-title{gap:14px}
.profile-avatar{width:58px;height:58px;font-size:28px;border-radius:16px}
.topic-grid>.cell{margin-bottom:0}
.milestone-layout,.assurance-layout{gap:35px}
.quick-layout,.faq-layout{gap:35px}
.compare-row{grid-template-columns:125px 1fr 1fr;gap:20px}
.section-head>div:first-child{flex-basis:46%}
}
@media(max-width:768px){
:root{--space:48px}
.grid-container{padding-left:22px;padding-right:22px}
.topline{min-height:78px}
.brand{font-size:22px}
.profile-layout{grid-template-columns:1fr;gap:28px}
.channel-panel{display:grid;grid-template-columns:1fr 1fr;column-gap:24px}
.panel-word{margin-bottom:0}
.panel-line{padding:10px 0}
.panel-line:nth-child(3){border-top:0}
.channel-panel .panel-label{align-self:start}
.channel-panel .panel-word{grid-column:1;grid-row:2/4;align-self:center}
.channel-panel .panel-line{grid-column:2}
.section-head,.footer-top{flex-direction:column;gap:18px}
.section-head>p{padding:0}
.section-head>div:first-child{flex:auto}
.milestone-layout,.assurance-layout,.quick-layout,.faq-layout{grid-template-columns:1fr;gap:30px}
.editorial-image img{height:260px}
.timeline{margin-top:8px}
.cta-box{padding:28px;align-items:flex-start;flex-direction:column;gap:24px}
.footer-bottom{flex-direction:column;gap:8px}
.compare-row{grid-template-columns:100px 1fr 1fr;gap:15px;padding:20px}
}
@media(max-width:520px){
.grid-container{padding-left:18px;padding-right:18px}
.header-note{font-size:11px;gap:6px}
.brand{font-size:21px;gap:9px}
.brand small{font-size:10px;letter-spacing:1px}
.brand-icon{width:38px;height:38px;font-size:21px}
.tabs-nav{gap:6px;min-height:50px}
.tabs-nav a{padding:9px 16px;font-size:13px}
.channel-hero{padding:30px 0}
.channel-kicker{margin-bottom:22px}
.profile-title{gap:12px}
h1{font-size:30px;letter-spacing:-.5px}
.profile-title .eyebrow{font-size:10px;letter-spacing:1px}
.profile-avatar{width:50px;height:50px;font-size:26px}
.hero-intro{font-size:15px}
.hero-actions{gap:10px}
.button{padding:12px 17px;font-size:13px}
.metric-strip{gap:10px;margin-top:27px}
.metric-item{display:block}
.metric-item strong{display:block;font-size:25px;margin-bottom:8px}
.metric-item span{font-size:11px}
.metric-item b{font-size:12px}
.channel-panel{padding:20px;column-gap:15px}
.panel-word{font-size:23px}
.panel-line{font-size:12px;gap:10px}
.card-body{padding:23px}
.compare-row{grid-template-columns:1fr 1fr;gap:12px;padding:20px}
.compare-row>h3{grid-column:1/-1}
.compare-row.heading>span:first-child{display:none}
.compare-row p{font-size:13px}
.compare-row:not(.heading)>p:nth-child(2){padding-right:10px;border-right:1px solid var(--line)}
.assurance-panel{padding:27px}
.quick-list li{grid-template-columns:1fr;gap:5px}
.faq-list summary{font-size:15px}
.faq-list details p{padding-right:0}
.cta-box{padding:25px}
.cta-box h2{font-size:24px}
.footer-links{gap:20px;padding-top:0}
.footer-bottom{font-size:11px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}