/* roulang page: index */
:root{
            --blue:#1769aa;
            --blue-dark:#104b7d;
            --blue-soft:#eaf4fb;
            --cyan:#4b8f9d;
            --warm:#d99458;
            --ink:#173047;
            --muted:#6e7f8d;
            --line:#dce7ee;
            --surface:#ffffff;
            --canvas:#f5f8fa;
            --shadow:0 12px 30px rgba(25,68,96,.09);
            --shadow-hover:0 18px 38px rgba(25,68,96,.15);
            --radius:8px;
            --radius-lg:14px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--canvas);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
            line-height:1.75;
            letter-spacing:0;
        }
        a{color:var(--blue-dark);text-decoration:none;transition:.2s ease}
        a:hover{color:var(--blue)}
        img{max-width:100%;height:auto;display:block}
        button,input,select,textarea{font:inherit}
        :focus-visible{outline:3px solid rgba(23,105,170,.28);outline-offset:3px}
        .container{max-width:1180px}
        .brand-bar{background:var(--surface);border-bottom:1px solid var(--line)}
        .brand-row{min-height:76px;display:flex;align-items:center;gap:24px}
        .brand-mark{
            width:40px;height:40px;border-radius:10px;background:var(--blue);
            display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;
            box-shadow:0 6px 15px rgba(23,105,170,.22)
        }
        .brand-name{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
        .brand-sub{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:20px}
        .top-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
        .tool-link{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:6px}
        .tool-link:hover,.tool-link.active{background:var(--blue-soft);color:var(--blue-dark)}
        .search-mini{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fff}
        .search-mini input{border:0;width:150px;padding:8px 11px;font-size:14px;outline:0}
        .search-mini button{border:0;background:var(--blue);color:#fff;width:42px}
        .channel-bar{background:#fff;border-bottom:1px solid var(--line)}
        .channel-scroll{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
        .channel-scroll::-webkit-scrollbar{display:none}
        .channel-link{display:block;white-space:nowrap;padding:12px 18px;font-size:14px;color:var(--muted);border-bottom:3px solid transparent}
        .channel-link:hover{color:var(--blue);background:#f7fbfd}
        .channel-link.active{color:var(--blue-dark);font-weight:700;border-bottom-color:var(--blue)}
        .hero{
            background:#e8f3fa;
            padding:72px 0 42px;
            border-bottom:1px solid #d6e7f0;
        }
        .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
        .eyebrow,.section-kicker{
            color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em;
            text-transform:uppercase;margin-bottom:14px
        }
        h1{font-size:clamp(2.25rem,5vw,4.35rem);line-height:1.18;letter-spacing:0;font-weight:800;margin:0 0 22px;color:var(--ink)}
        h2{font-size:clamp(1.65rem,3vw,2.45rem);line-height:1.3;margin:0 0 14px;font-weight:800}
        h3{font-size:1.13rem;line-height:1.45;margin:0 0 8px;font-weight:750}
        .hero-copy{font-size:18px;color:#4d6575;max-width:650px;margin-bottom:28px}
        .btn{border-radius:7px;padding:11px 20px;font-weight:700;transition:.2s ease}
        .btn-primary{background:var(--blue);border-color:var(--blue)}
        .btn-primary:hover,.btn-primary:focus{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(23,105,170,.2)}
        .btn-outline-primary{color:var(--blue-dark);border-color:#8bb6ce;background:#fff}
        .btn-outline-primary:hover{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-dark)}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-points{display:flex;gap:24px;flex-wrap:wrap;margin-top:30px;color:var(--muted);font-size:13px}
        .hero-points strong{display:block;font-size:22px;color:var(--ink);line-height:1.2}
        .hero-visual{min-height:330px;position:relative;background:#fff;border:1px solid #cbdfe9;border-radius:var(--radius-lg);padding:16px;box-shadow:var(--shadow)}
        .visual-cover{height:210px;border-radius:9px;background:#b9d8e4;position:relative;overflow:hidden;padding:24px;display:flex;align-items:end}
        .visual-cover:before,.visual-cover:after{content:"";position:absolute;background:#7eafbd;opacity:.55}
        .visual-cover:before{width:48%;height:145%;right:-8%;top:-25%;transform:rotate(25deg)}
        .visual-cover:after{width:32%;height:125%;left:18%;top:-10%;transform:rotate(-18deg);background:#d9e9e9}
        .cover-text{position:relative;z-index:1;color:#14384e}
        .cover-text small{font-weight:800;letter-spacing:.12em}
        .cover-text b{display:block;font-size:28px;line-height:1.25;margin-top:8px}
        .visual-meta{display:flex;justify-content:space-between;align-items:center;padding:15px 3px 0;font-size:13px;color:var(--muted)}
        .status-dot{display:inline-flex;align-items:center;gap:7px;color:var(--blue-dark);font-weight:700}
        .status-dot:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--warm)}
        .peek{margin-top:34px;color:var(--muted);font-size:13px}
        .section{padding:84px 0}
        .section.alt{background:#fff}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
        .section-intro{max-width:600px;color:var(--muted);margin:0}
        .pain-wrap{display:grid;grid-template-columns:4fr 8fr;gap:42px;align-items:start}
        .pain-lead{border-left:4px solid var(--warm);padding:8px 0 8px 24px}
        .pain-list{border-top:1px solid var(--line)}
        .pain-item{display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
        .number{font-size:24px;color:var(--blue);font-weight:800}
        .pain-item p{margin:0;color:var(--muted);font-size:14px}
        .tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:5px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:700}
        .solution{background:#f0f6f9}
        .feature-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px}
        .feature-main,.feature-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}
        .feature-main{display:grid;grid-template-columns:1fr 1.08fr}
        .feature-image{min-height:320px;background:#c4dfe8;padding:24px;display:flex;align-items:end}
        .feature-image span{font-size:30px;line-height:1.3;font-weight:800;color:#173d50;max-width:220px}
        .feature-body{padding:30px}
        .feature-body p,.feature-side p{color:var(--muted);font-size:14px}
        .feature-side{padding:26px}
        .mini-entry{padding:18px 0;border-top:1px solid var(--line)}
        .mini-entry:first-of-type{margin-top:18px}
        .mini-entry a{font-weight:750}
        .entry-meta{color:var(--muted);font-size:12px;margin-top:4px}
        .metrics{background:var(--blue-dark);color:#fff}
        .metrics .section-kicker{color:#a9d3e7}
        .metrics .section-intro{color:#c6dce6}
        .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.18);margin-top:34px}
        .metric{background:var(--blue-dark);padding:26px 22px}
        .metric strong{display:block;font-size:36px;line-height:1.1;margin-bottom:8px}
        .metric span{color:#c6dce6;font-size:13px}
        .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
        .compare-panel{padding:30px;border-radius:var(--radius-lg);border:1px solid var(--line);background:#fff}
        .compare-panel.after{background:#edf7f6;border-color:#c5e1df}
        .compare-label{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--muted);margin-bottom:20px}
        .compare-panel ul{list-style:none;padding:0;margin:0}
        .compare-panel li{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
        .compare-panel li:last-child{border-bottom:0}
        .compare-panel li:before{content:"—";color:var(--warm);font-weight:800;margin-right:10px}
        .compare-panel.after li:before{content:"✓";color:var(--cyan)}
        .quote-section{background:#fff}
        .quote-box{max-width:850px;border-top:3px solid var(--blue);padding:30px 0 8px}
        blockquote{font-size:clamp(1.3rem,2.5vw,2rem);line-height:1.55;margin:0 0 18px;color:var(--ink)}
        .quote-note{font-size:13px;color:var(--muted)}
        .news-layout{display:grid;grid-template-columns:7fr 5fr;gap:46px}
        .news-list{border-top:1px solid var(--line)}
        .news-item{display:flex;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
        .news-item a{font-weight:750}
        .news-item p{margin:5px 0 0;color:var(--muted);font-size:13px}
        .news-date{font-size:12px;color:var(--muted);white-space:nowrap}
        .notice-box{background:var(--blue-soft);border-radius:var(--radius-lg);padding:27px}
        .notice-box ul{padding-left:18px;margin:18px 0 0;color:var(--muted);font-size:14px}
        .faq .accordion-item{border:1px solid var(--line);margin-bottom:10px;border-radius:7px!important;overflow:hidden;background:#fff}
        .faq .accordion-button{font-weight:700;color:var(--ink);background:#fff;box-shadow:none;padding:18px 20px}
        .faq .accordion-button:not(.collapsed){color:var(--blue-dark);background:var(--blue-soft)}
        .faq .accordion-body{color:var(--muted);font-size:14px;padding:0 20px 20px}
        .cta{background:#e8f3fa;border-top:1px solid #d6e7f0;border-bottom:1px solid #d6e7f0}
        .cta-layout{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta p{color:var(--muted);margin:0;max-width:650px}
        .feedback-form{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-top:25px}
        .form-control,.form-select{border:1px solid #cbdbe4;border-radius:7px;padding:11px 13px;color:var(--ink)}
        .form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 .2rem rgba(23,105,170,.12)}
        footer{background:#173047;color:#c5d5de;padding:48px 0 24px}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:35px}
        footer h3{color:#fff;font-size:15px;margin-bottom:14px}
        .footer-brand{color:#fff;font-size:19px;font-weight:800;margin-bottom:10px}
        footer p,footer li,footer a{color:#aebfc9;font-size:13px}
        footer a:hover{color:#fff}
        footer ul{list-style:none;padding:0;margin:0}
        footer li{margin-bottom:7px}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:18px;font-size:12px;color:#91a8b5;display:flex;justify-content:space-between;gap:20px}
        .empty-state{border:1px dashed #b8cbd5;border-radius:var(--radius);padding:18px;color:var(--muted);font-size:13px;background:#fbfdfe}
        @media (max-width:992px){
            .hero-grid,.feature-layout,.news-layout{grid-template-columns:1fr}
            .pain-wrap{grid-template-columns:1fr;gap:25px}
            .metric-grid{grid-template-columns:repeat(2,1fr)}
            .footer-grid{grid-template-columns:2fr 1fr 1fr}
        }
        @media (max-width:768px){
            .brand-row{min-height:68px;gap:12px}
            .brand-sub,.top-tools .tool-link{display:none}
            .brand-name{font-size:17px}
            .search-mini input{width:110px}
            .hero{padding:48px 0 30px}
            .hero-grid{gap:30px}
            .hero-copy{font-size:16px}
            .hero-visual{min-height:270px}
            .visual-cover{height:165px}
            .feature-main{grid-template-columns:1fr}
            .feature-image{min-height:190px}
            .section{padding:58px 0}
            .section-head,.cta-layout{display:block}
            .section-head .btn{margin-top:18px}
            .compare-grid{grid-template-columns:1fr}
            .feedback-form{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media (max-width:520px){
            .container{padding-left:20px;padding-right:20px}
            h1{font-size:2.3rem}
            .hero-actions .btn{width:100%}
            .hero-points{gap:15px}
            .pain-item{grid-template-columns:38px 1fr}
            .pain-item .tag{grid-column:2;justify-self:start}
            .metric-grid{grid-template-columns:1fr 1fr}
            .metric{padding:20px 14px}
            .metric strong{font-size:28px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }

/* roulang page: category1 */
:root{
 --blue:#1769aa;
 --blue-dark:#104b7d;
 --blue-soft:#eaf4fb;
 --cyan:#4b8f9d;
 --warm:#d99458;
 --ink:#173047;
 --muted:#6e7f8d;
 --line:#dce7ee;
 --surface:#fff;
 --canvas:#f5f8fa;
 --shadow:0 12px 30px rgba(25,68,96,.09);
 --shadow-hover:0 18px 38px rgba(25,68,96,.15);
 --radius:8px;
 --radius-lg:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
a{color:var(--blue-dark);text-decoration:none;transition:.2s ease}
a:hover{color:var(--blue)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(23,105,170,.25);outline-offset:2px}
img{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit}
.container{max-width:1180px}
.brand-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.brand-row{min-height:76px;display:flex;align-items:center;gap:24px}
.brand-mark{width:40px;height:40px;border-radius:10px;background:var(--blue);display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;box-shadow:0 6px 15px rgba(23,105,170,.22)}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:20px}
.top-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-mini{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fff}
.search-mini input{border:0;width:150px;padding:8px 11px;font-size:14px;outline:0}
.search-mini button{border:0;background:var(--blue);color:#fff;width:42px}
.tool-link{font-size:13px;white-space:nowrap}
.channel-bar{background:#fff;border-bottom:1px solid var(--line)}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{padding:13px 18px;color:var(--muted);font-size:14px;font-weight:700;white-space:nowrap;border-bottom:3px solid transparent}
.channel-link:hover,.channel-link:focus{color:var(--blue);background:var(--blue-soft)}
.channel-link.active{color:var(--blue-dark);border-bottom-color:var(--blue);background:#f7fbfd}
.btn{border-radius:7px;padding:11px 20px;font-weight:700;transition:.2s ease}
.btn-primary{background:var(--blue);border-color:var(--blue)}
.btn-primary:hover,.btn-primary:focus{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(23,105,170,.2)}
.btn-outline-primary{color:var(--blue-dark);border-color:#8bb6ce;background:#fff}
.btn-outline-primary:hover{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-dark)}
.page-hero{background:#e8f3fa;border-bottom:1px solid #d6e7f0;padding:42px 0 38px}
.breadcrumb{font-size:13px;margin-bottom:26px}
.breadcrumb-item a{color:var(--blue)}
.breadcrumb-item.active{color:var(--muted)}
.hero-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.eyebrow,.section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em;margin-bottom:12px}
h1{font-size:clamp(2rem,4vw,3.5rem);line-height:1.2;letter-spacing:0;margin:0 0 18px;font-weight:800}
h2{font-size:clamp(1.55rem,2.5vw,2.2rem);line-height:1.35;margin:0 0 12px;font-weight:800}
h3{font-size:1.08rem;line-height:1.45;font-weight:800}
.hero-copy{font-size:17px;color:#4d6575;max-width:650px;margin:0 0 24px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.guide-cover{min-height:225px;border:1px solid #c6dce7;border-radius:var(--radius-lg);background:#d3e8ef;padding:25px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow)}
.cover-label{display:flex;justify-content:space-between;color:#356679;font-size:12px;font-weight:700}
.cover-title{font-size:28px;line-height:1.3;font-weight:800;color:#173d50;max-width:280px}
.section{padding:76px 0}
.section.alt{background:#fff}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
.section-intro{max-width:640px;color:var(--muted);margin:0}
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow)}
.form-label{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px}
.form-control,.form-select{border:1px solid #cbdbe4;border-radius:7px;padding:11px 13px;color:var(--ink);min-height:46px}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 .2rem rgba(23,105,170,.12)}
.empty-state{display:none;color:var(--muted);text-align:center;padding:28px;border:1px dashed #b9ced9;border-radius:var(--radius);margin-top:20px;background:#fbfdfe}
.content-layout{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:start}
.filter-side{position:sticky;top:18px}
.filter-side h3{margin:0 0 16px}
.filter-group{border-top:1px solid var(--line);padding:17px 0}
.filter-group:first-of-type{border-top:0;padding-top:0}
.filter-group label{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);margin:9px 0;cursor:pointer}
.filter-group input{accent-color:var(--blue)}
.sort-row{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:16px}
.result-count{font-size:14px;color:var(--muted)}
.entry-list{display:flex;flex-direction:column;gap:14px}
.entry-card{display:grid;grid-template-columns:190px 1fr auto;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:13px;box-shadow:var(--shadow);transition:.2s ease}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#b6d2e0}
.entry-thumb{height:128px;border-radius:7px;background:#d8e9ed;display:flex;align-items:end;padding:15px;color:#234d5d;font-weight:800;font-size:18px;line-height:1.35}
.entry-card h3{margin:7px 0 5px}
.entry-card p{color:var(--muted);font-size:14px;margin:0 0 9px;max-width:560px}
.tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:5px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:700;margin-right:5px}
.meta{font-size:12px;color:var(--muted)}
.entry-action{white-space:nowrap}
.feature-strip{display:grid;grid-template-columns:5fr 7fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.feature-art{min-height:275px;background:#bddce5;padding:28px;display:flex;flex-direction:column;justify-content:space-between}
.feature-art strong{font-size:29px;line-height:1.3;color:#173d50;max-width:260px}
.feature-body{padding:32px}
.feature-body p{color:var(--muted);max-width:620px}
.feature-meta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.related-card h3{margin-top:10px;margin-bottom:6px}
.related-card p{font-size:14px;color:var(--muted);margin:0}
.faq .accordion-item{border:1px solid var(--line);margin-bottom:10px;border-radius:7px!important;overflow:hidden;background:#fff}
.faq .accordion-button{font-weight:700;color:var(--ink);background:#fff;box-shadow:none;padding:18px 20px}
.faq .accordion-button:not(.collapsed){color:var(--blue-dark);background:var(--blue-soft)}
.faq .accordion-body{color:var(--muted);font-size:14px;padding:0 20px 20px}
.cta{background:#e8f3fa;border-top:1px solid #d6e7f0;border-bottom:1px solid #d6e7f0}
.cta-layout{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta p{color:var(--muted);margin:0;max-width:680px}
.feedback-form{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-top:25px}
footer{background:#173047;color:#c5d5de;padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:35px}
footer h3{color:#fff;font-size:15px;margin-bottom:14px}
.footer-brand{color:#fff;font-size:19px;font-weight:800;margin-bottom:10px}
footer p,footer li{font-size:13px;color:#c5d5de}
footer p{margin:0}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
footer a{color:#c5d5de}
footer a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:35px;padding-top:18px;font-size:12px;color:#9fb4c0}
@media(max-width:991px){
 .brand-sub{display:none}.hero-layout{grid-template-columns:1fr;gap:28px}.content-layout{grid-template-columns:1fr}.filter-side{position:static}.entry-card{grid-template-columns:155px 1fr}.entry-action{grid-column:2}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media(max-width:767px){
 .brand-row{min-height:68px;gap:12px}.brand-name{font-size:16px}.top-tools{gap:7px}.search-mini input{width:105px}.tool-link{display:none}
 .channel-scroll.collapse:not(.show){display:flex!important;height:auto}
 .page-hero{padding:30px 0}.section{padding:52px 0}.section-head{display:block;margin-bottom:23px}
 .hero-copy{font-size:16px}.guide-cover{min-height:190px}.feature-strip{grid-template-columns:1fr}.feature-art{min-height:190px}
 .entry-card{grid-template-columns:110px 1fr;gap:14px;padding:10px}.entry-thumb{height:105px;font-size:15px;padding:11px}.entry-card p{font-size:13px}.entry-action{grid-column:2}
 .related-grid{grid-template-columns:1fr}.cta-layout{display:block}.cta-layout .btn{margin-top:18px}.feedback-form{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
}
@media(max-width:520px){
 h1{font-size:2rem}.brand-mark{width:34px;height:34px;font-size:16px}.brand-name{max-width:190px;white-space:normal;line-height:1.25}
 .entry-card{grid-template-columns:1fr}.entry-thumb{height:150px}.entry-action{grid-column:auto}.footer-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
 --blue:#1769aa;
 --blue-dark:#104b7d;
 --blue-soft:#eaf4fb;
 --cyan:#4b8f9d;
 --warm:#d99458;
 --ink:#173047;
 --muted:#6e7f8d;
 --line:#dce7ee;
 --surface:#fff;
 --canvas:#f5f8fa;
 --shadow:0 12px 30px rgba(25,68,96,.09);
 --shadow-hover:0 18px 38px rgba(25,68,96,.15);
 --radius:8px;
 --radius-lg:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;letter-spacing:0}
a{color:var(--blue-dark);text-decoration:none;transition:.2s ease}
a:hover{color:var(--blue)}
img{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit}
.container{max-width:1180px}
.brand-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.brand-row{min-height:76px;display:flex;align-items:center;gap:24px}
.brand-row>a{display:flex;align-items:center;gap:12px}
.brand-mark{width:40px;height:40px;border-radius:10px;background:var(--blue);display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;box-shadow:0 6px 15px rgba(23,105,170,.22)}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:20px}
.top-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-mini{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fff}
.search-mini input{border:0;width:150px;padding:8px 11px;font-size:14px;outline:0}
.search-mini input:focus{box-shadow:inset 0 0 0 2px rgba(23,105,170,.16)}
.search-mini button{border:0;background:var(--blue);color:#fff;width:42px;cursor:pointer}
.search-mini button:hover{background:var(--blue-dark)}
.tool-link{font-size:13px;color:var(--muted);white-space:nowrap}
.tool-link:hover{color:var(--blue)}
.channel-bar{background:#fff;border-bottom:1px solid var(--line)}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{display:block;padding:13px 18px;color:var(--muted);font-size:14px;font-weight:700;white-space:nowrap;border-bottom:3px solid transparent}
.channel-link:hover,.channel-link:focus-visible{color:var(--blue);background:var(--blue-soft);outline:0}
.channel-link.active{color:var(--blue-dark);border-bottom-color:var(--blue);background:#f7fbfd}
.btn{border-radius:7px;padding:11px 20px;font-weight:700;transition:.2s ease}
.btn-primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(23,105,170,.2)}
.btn-outline-primary{color:var(--blue-dark);border-color:#8bb6ce;background:#fff}
.btn-outline-primary:hover{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-dark)}
.btn-light{background:#fff;border-color:#cbdfe9;color:var(--blue-dark)}
.btn-light:hover{background:var(--blue-soft);color:var(--blue-dark)}
.hero-inner{background:#e8f3fa;border-bottom:1px solid #d6e7f0;padding:50px 0 42px}
.breadcrumb{margin-bottom:22px;font-size:13px}
.breadcrumb-item a{color:var(--blue)}
.breadcrumb-item.active{color:var(--muted)}
.eyebrow,.section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px}
h1,h2,h3{font-weight:800;line-height:1.3;margin-top:0}
h1{font-size:clamp(2rem,4vw,3.3rem);max-width:760px;margin-bottom:18px}
h2{font-size:clamp(1.55rem,2.5vw,2.2rem);margin-bottom:12px}
h3{font-size:1.08rem;margin-bottom:8px}
.hero-copy{font-size:17px;color:#4d6575;max-width:720px;margin-bottom:25px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 24px;color:var(--muted);font-size:13px}
.hero-meta strong{color:var(--ink);margin-right:5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.section{padding:76px 0}
.section.alt{background:#fff}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}
.section-intro{max-width:620px;color:var(--muted);margin:0}
.tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:5px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:700}
.tag.warm{background:#fff2e6;color:#975d2d}
.update-layout{display:grid;grid-template-columns:5fr 7fr;gap:26px;align-items:stretch}
.cover-panel{min-height:390px;border-radius:var(--radius-lg);padding:30px;background:#c8e1e8;border:1px solid #b3d2dc;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow)}
.cover-top{display:flex;justify-content:space-between;color:#376979;font-size:12px;font-weight:800}
.cover-title{font-size:clamp(2rem,4vw,3.3rem);line-height:1.18;font-weight:800;color:#173d50;max-width:330px}
.cover-bottom{border-top:1px solid rgba(23,61,80,.2);padding-top:15px;color:#376979;font-size:13px}
.summary-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow)}
.summary-panel>p{color:var(--muted);margin-bottom:24px}
.summary-list{border-top:1px solid var(--line)}
.summary-row{display:grid;grid-template-columns:50px 1fr auto;gap:14px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line)}
.summary-no{font-size:13px;font-weight:800;color:var(--blue)}
.summary-row p{margin:0;color:var(--muted);font-size:13px}
.summary-row a{font-weight:750;font-size:15px}
.filter-strip{background:#fff;border:1px solid var(--line);padding:18px;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:26px}
.filter-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr auto;gap:12px;align-items:end}
.form-label{display:block;font-size:12px;font-weight:800;color:var(--ink);margin-bottom:6px}
.form-control,.form-select{border:1px solid #cbdbe4;border-radius:7px;padding:10px 13px;color:var(--ink);min-height:46px}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 .2rem rgba(23,105,170,.12)}
.content-index{display:grid;grid-template-columns:3fr 9fr;gap:28px}
.side-note{background:#f1f7fa;border-left:4px solid var(--cyan);padding:22px;height:max-content}
.side-note p{font-size:14px;color:var(--muted);margin:0 0 15px}
.side-links{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.side-links li{border-bottom:1px solid var(--line)}
.side-links a{display:flex;justify-content:space-between;padding:11px 0;font-size:14px}
.side-links a span{color:var(--muted);font-size:12px}
.index-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.index-item{display:grid;grid-template-columns:150px 1fr;gap:22px;padding:20px;border-bottom:1px solid var(--line);transition:.2s ease}
.index-item:last-child{border-bottom:0}
.index-item:hover{background:#fbfdfe}
.thumb{min-height:108px;border-radius:7px;background:#d8e9ee;border:1px solid #c2dce5;padding:12px;display:flex;align-items:flex-end;color:#24586c;font-size:13px;font-weight:800}
.index-item h3{margin:8px 0 5px}
.index-item p{margin:0 0 9px;color:var(--muted);font-size:14px}
.item-meta{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;color:var(--muted);font-size:12px}
.item-meta a{font-weight:750}
.empty-note{margin-top:16px;padding:14px 16px;color:var(--muted);background:#f7fafb;border:1px dashed #c8dbe4;border-radius:7px;font-size:13px}
.pager-wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:25px}
.page-info{color:var(--muted);font-size:13px}
.pagination{margin:0}
.page-link{color:var(--blue-dark);border-color:var(--line);margin-left:4px;border-radius:6px!important}
.page-item.active .page-link{background:var(--blue);border-color:var(--blue)}
.page-item.disabled .page-link{color:#a9b7bf;background:#f4f7f8}
.related-band{background:#edf6f9;padding:50px 0}
.related-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.related-links{display:flex;flex-wrap:wrap;gap:10px}
.related-links a{background:#fff;border:1px solid var(--line);padding:11px 15px;border-radius:7px;font-weight:700;box-shadow:0 5px 14px rgba(25,68,96,.05)}
.related-links a:hover{border-color:#9ec6d7;transform:translateY(-2px)}
.faq .accordion-item{border:1px solid var(--line);margin-bottom:10px;border-radius:7px!important;overflow:hidden;background:#fff}
.faq .accordion-button{font-weight:700;color:var(--ink);background:#fff;box-shadow:none;padding:18px 20px}
.faq .accordion-button:not(.collapsed){color:var(--blue-dark);background:var(--blue-soft)}
.faq .accordion-button:focus{box-shadow:0 0 0 .2rem rgba(23,105,170,.12)}
.faq .accordion-body{color:var(--muted);font-size:14px;padding:0 20px 20px}
.cta{background:#e8f3fa;border-top:1px solid #d6e7f0;border-bottom:1px solid #d6e7f0;padding:48px 0}
.cta-layout{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta p{color:var(--muted);margin:0;max-width:680px}
.feedback-form{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-top:25px}
.feedback-form textarea{grid-column:1 / -2;min-height:48px;resize:vertical}
footer{background:#173047;color:#c5d5de;padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:35px}
footer h3{color:#fff;font-size:15px;margin-bottom:14px}
.footer-brand{color:#fff;font-size:19px;font-weight:800;margin-bottom:10px}
footer p,footer li{font-size:13px;color:#c5d5de}
footer p{margin:0}
footer ul{padding:0;margin:0;list-style:none}
footer li{margin-bottom:8px}
footer a{color:#c5d5de}
footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#9fb4c0}
:focus-visible{outline:3px solid rgba(23,105,170,.3);outline-offset:3px}
@media(max-width:991px){
 .brand-sub{display:none}.update-layout,.related-grid{grid-template-columns:1fr}.content-index{grid-template-columns:1fr}.side-note{height:auto}
 .filter-grid{grid-template-columns:1fr 1fr}.filter-grid .btn{width:100%}.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
 .brand-row{min-height:68px;gap:12px}.brand-name{font-size:16px}.top-tools{gap:8px}.search-mini input{width:105px}
 .channel-scroll.collapse:not(.show){display:none}.channel-link{padding:11px 14px}
 .hero-inner{padding:34px 0 30px}.section{padding:52px 0}.section-head{display:block}.section-head .section-intro{margin-top:10px}
 .cover-panel{min-height:290px;padding:24px}.summary-panel{padding:22px}.index-item{grid-template-columns:105px 1fr;gap:14px;padding:16px}.thumb{min-height:92px}
 .cta-layout{display:block}.cta-layout .btn{margin-top:20px}.feedback-form{grid-template-columns:1fr}.feedback-form textarea{grid-column:auto}
}
@media(max-width:520px){
 h1{font-size:2rem}.hero-copy{font-size:15px}.filter-grid{grid-template-columns:1fr}.index-item{grid-template-columns:1fr}.thumb{min-height:125px}
 .pager-wrap{display:block}.pagination{margin-top:15px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
}