/* roulang page: index */
:root{
      --blue:#2868d7;--blue-dark:#174b9f;--blue-soft:#edf5ff;--cyan:#55b9c8;
      --ink:#17253c;--text:#40516a;--muted:#78869a;--line:#dce6f2;
      --bg:#f7faff;--white:#fff;--orange:#e28a43;--green:#2d9b72;
      --radius:18px;--radius-sm:12px;--shadow:0 12px 34px rgba(28,72,128,.09);
      --shadow-hover:0 18px 42px rgba(28,72,128,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:var(--blue);text-decoration:none;transition:.25s ease}
    a:hover{color:var(--blue-dark)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    :focus-visible{outline:3px solid rgba(40,104,215,.32);outline-offset:3px}
    .container{max-width:1200px;margin:0 auto;padding:0 28px}
    .site-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between}
    .brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;font-size:21px;letter-spacing:.02em}
    .brand-mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:17px;box-shadow:0 7px 16px rgba(40,104,215,.25)}
    .nav-list{display:flex;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
    .nav-list a{display:block;padding:10px 15px;border-radius:10px;color:#52637b;font-size:14px;font-weight:600}
    .nav-list a:hover,.nav-list a.active{color:var(--blue);background:var(--blue-soft)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:10px;padding:8px 12px}
    .hero{padding:70px 0 76px;background:#102746;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(16,39,70,.98) 12%,rgba(16,39,70,.8) 56%,rgba(16,39,70,.42)),url('/assets/images/8405cd9d72aff9e6.jpg') center/cover;opacity:.9}
    .hero .container{position:relative;z-index:1}
    .hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:58px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#9fd9ff;font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:18px}
    .eyebrow:before{content:"";width:24px;height:2px;background:#62c2df}
    h1,h2,h3{color:var(--ink);line-height:1.3;margin:0 0 16px;font-weight:800}
    h1{font-size:clamp(34px,4.2vw,58px);letter-spacing:-.04em;color:#fff;max-width:650px}
    .hero-copy{color:#c8d8ec;max-width:650px;font-size:17px;line-height:1.9;margin:0 0 28px}
    .button-row{display:flex;flex-wrap:wrap;gap:12px}
    .button{border-radius:11px;padding:12px 20px;font-weight:700;margin:0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff}
    .button.primary:hover{background:#3d7be1;transform:translateY(-2px);box-shadow:0 9px 20px rgba(40,104,215,.28)}
    .button.ghost{border:1px solid rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.06)}
    .button.ghost:hover{background:#fff;color:var(--blue)}
    .hero-panel{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:22px;padding:25px;box-shadow:0 20px 50px rgba(0,0,0,.2)}
    .panel-head{display:flex;justify-content:space-between;align-items:center;color:#fff;margin-bottom:22px;font-weight:700}
    .status{font-size:12px;color:#b8f0dc;background:rgba(45,155,114,.2);border:1px solid rgba(184,240,220,.3);padding:4px 9px;border-radius:30px}
    .panel-row{display:flex;align-items:center;gap:14px;padding:15px 0;border-top:1px solid rgba(255,255,255,.14);color:#d8e6f5}
    .panel-number{width:30px;height:30px;border-radius:9px;background:#4f8ee7;color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}
    .panel-row strong{display:block;color:#fff;font-size:15px}.panel-row small{color:#aabed6}
    section{padding:82px 0}
    .section-head{max-width:700px;margin-bottom:36px}
    .section-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:9px}
    h2{font-size:clamp(26px,3vw,38px)}
    .section-lead{color:var(--muted);margin:0;font-size:16px}
    .section-soft{background:var(--blue-soft)}
    .pain-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
    .pain-main,.card,.guide-list,.notice,.compare-box,.cta-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .pain-main{padding:30px}
    .question-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
    .question{padding:17px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fbfdff}
    .question b{display:block;color:var(--ink);font-size:15px;margin-bottom:5px}.question span{font-size:13px;color:var(--muted)}
    .side-note{padding:30px;background:#e7f2ff;border-radius:var(--radius);border:1px solid #cfe4fb}
    .side-note h3{font-size:21px}.side-note p{font-size:14px;color:#526a86;margin-bottom:0}
    .feature-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
    .feature-card{grid-column:span 4;padding:25px;min-height:190px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);transition:.25s}
    .feature-card.wide{grid-column:span 6;background:#f0f7ff}
    .feature-card:hover,.card:hover,.guide-list:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .icon{width:42px;height:42px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:18px}
    .feature-card h3{font-size:20px}.feature-card p{font-size:14px;color:var(--muted);margin:0}
    .scene-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .scene{padding:20px 16px;border-left:3px solid var(--blue);background:#fff;border-radius:0 13px 13px 0;box-shadow:var(--shadow)}
    .scene strong{display:block;color:var(--ink);margin-bottom:5px}.scene span{font-size:13px;color:var(--muted)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .steps:before{content:"";position:absolute;top:24px;left:11%;right:11%;height:2px;background:#c9dcf5}
    .step{position:relative;padding:0 18px;text-align:center}.step-num{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;background:#fff;border:2px solid var(--blue);color:var(--blue);font-size:18px;font-weight:800;position:relative;z-index:1}
    .step h3{font-size:17px}.step p{font-size:13px;color:var(--muted);margin:0}
    .timeline{border-left:2px solid #c5d9f1;padding-left:25px;max-width:850px}
    .timeline-item{position:relative;padding:0 0 25px}.timeline-item:last-child{padding-bottom:0}.timeline-item:before{content:"";position:absolute;left:-33px;top:7px;width:13px;height:13px;background:var(--blue);border:3px solid #dcecff;border-radius:50%}
    .badge{display:inline-block;padding:4px 10px;border-radius:30px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700;margin-bottom:8px}
    .timeline-item h3{font-size:19px;margin-bottom:5px}.timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .stat{padding:25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);text-align:center}.stat strong{display:block;font-size:34px;color:var(--blue);line-height:1.2}.stat span{color:var(--muted);font-size:13px}
    .feedback-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.quote{padding:28px;background:#fff;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}.quote p{font-size:18px;color:var(--ink);margin:0 0 17px}.quote small{color:var(--muted)}
    .audience-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.audience{padding:22px;background:#fff;border-radius:var(--radius-sm);border:1px solid var(--line)}.audience h3{font-size:17px}.audience p{font-size:13px;color:var(--muted);margin:0}
    .faq{max-width:900px}.accordion{background:transparent;margin:0}.accordion-title{border:1px solid var(--line)!important;border-radius:10px!important;margin-bottom:8px;background:#fff;color:var(--ink);font-weight:700;padding:17px 20px}.accordion-title:hover{background:var(--blue-soft);color:var(--blue)}.accordion-content{border:1px solid var(--line);border-top:0!important;margin-top:-8px;margin-bottom:8px;border-radius:0 0 10px 10px;color:var(--muted);font-size:14px;line-height:1.8}
    .article-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.article-main{padding:32px;background:#fff;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}.article-main h3{font-size:24px}.article-main p{color:var(--muted)}.article-side{display:grid;gap:14px}.article-item{padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm)}.article-item .tag{color:var(--orange);font-size:12px;font-weight:700}.article-item h3{font-size:17px;margin:5px 0}.article-item p{font-size:13px;color:var(--muted);margin:0}
    .compare-box{padding:28px}.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:15px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}.compare-row:first-child{color:var(--blue);font-weight:800}.compare-row:last-child{border-bottom:0}.compare-row strong{color:var(--ink)}
    .notice{padding:25px 28px;background:#f3f8ff;border-color:#cfe2fa}.notice h3{font-size:19px}.notice p{margin:0;color:#5f7590;font-size:14px}
    .cta-box{padding:42px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(105deg,#eaf4ff,#f8fcff)}.cta-box h2{margin-bottom:8px}.cta-box p{margin:0;color:var(--muted)}
    .site-footer{background:#122844;color:#b5c7dc;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:35px}.site-footer .brand{color:#fff;margin-bottom:15px}.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}.footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:6px 0}.footer-links a{color:#b5c7dc;font-size:14px}.footer-links a:hover{color:#fff}.footer-desc{font-size:14px;max-width:360px;margin:0}.copyright{border-top:1px solid rgba(255,255,255,.13);padding-top:20px;font-size:12px;color:#839ab5;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:1024px){.hero-grid,.pain-grid,.article-feature{grid-template-columns:1fr}.scene-grid{grid-template-columns:repeat(3,1fr)}.audience-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{padding:0 20px}.topbar{min-height:68px}.menu-toggle{display:block}.nav-list{display:none;position:absolute;left:20px;right:20px;top:73px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:var(--shadow)}.nav-list.open{display:block}.nav-list a{padding:12px 14px}.hero{padding:54px 0 60px}.hero-grid{gap:35px}section{padding:62px 0}.feature-layout{grid-template-columns:1fr}.feature-card,.feature-card.wide{grid-column:auto}.steps{grid-template-columns:1fr 1fr;gap:28px}.steps:before{display:none}.stats{grid-template-columns:repeat(2,1fr)}.feedback-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
    @media(max-width:520px){h1{font-size:34px}.question-list,.scene-grid,.audience-grid,.steps,.stats{grid-template-columns:1fr}.hero-panel{padding:20px}.button-row .button{width:100%;text-align:center}.cta-box{display:block;padding:30px}.cta-box .button{margin-top:22px}.footer-grid{grid-template-columns:1fr}.compare-box{overflow:auto}.compare-row{min-width:600px}}

/* roulang page: category1 */
:root{
            --blue:#2868d7;
            --blue-dark:#174b9f;
            --blue-soft:#edf5ff;
            --cyan:#55b9c8;
            --ink:#17253c;
            --text:#40516a;
            --muted:#78869a;
            --line:#dce6f2;
            --bg:#f7faff;
            --white:#fff;
            --orange:#e28a43;
            --green:#2d9b72;
            --radius:18px;
            --radius-sm:12px;
            --shadow:0 12px 34px rgba(28,72,128,.09);
            --shadow-hover:0 18px 42px rgba(28,72,128,.15);
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.8}
        a{color:var(--blue);text-decoration:none;transition:.25s ease}
        a:hover{color:var(--blue-dark)}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        .container{max-width:1200px;margin:0 auto;padding:0 28px}
        .site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between}
        .brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;font-size:21px;letter-spacing:.02em}
        .brand:hover{color:var(--blue)}
        .brand-mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:17px;box-shadow:0 7px 16px rgba(40,104,215,.25)}
        .nav-list{display:flex;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
        .nav-list a{display:block;padding:10px 15px;border-radius:10px;color:#52637b;font-size:14px;font-weight:600}
        .nav-list a:hover,.nav-list a.active{color:var(--blue);background:var(--blue-soft)}
        .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:10px;padding:8px 12px;cursor:pointer}
        .page-banner{padding:78px 0 72px;background:#102746;position:relative;overflow:hidden;color:#fff}
        .page-banner:after{content:"";position:absolute;inset:0;background:linear-gradient(108deg,rgba(16,39,70,.96) 15%,rgba(16,39,70,.78) 58%,rgba(16,39,70,.46)),url('/assets/images/803409df710b1643.jpg') center/cover;opacity:.92}
        .page-banner .container{position:relative;z-index:1}
        .banner-inner{max-width:820px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#9fd9ff;font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:16px}
        .eyebrow:before{content:"";width:24px;height:2px;background:#62c2df}
        h1,h2,h3{color:var(--ink);line-height:1.35;margin-top:0}
        .page-banner h1{color:#fff;font-size:clamp(32px,4.4vw,54px);letter-spacing:-.03em;margin:0 0 18px}
        .banner-lead{max-width:720px;color:#c8d8ec;font-size:17px;margin:0}
        section{padding:78px 0}
        .section-soft{background:var(--blue-soft)}
        .section-head{max-width:730px;margin-bottom:34px}
        .section-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:9px}
        .section-head h2{font-size:clamp(26px,3vw,36px);margin-bottom:12px}
        .section-lead{color:var(--muted);margin:0}
        .guide-layout{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:start}
        .guide-side{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);position:sticky;top:104px}
        .guide-side h3{font-size:19px;margin-bottom:15px}
        .side-list{list-style:none;margin:0;padding:0}
        .side-list li{border-top:1px solid var(--line)}
        .side-list a{display:flex;justify-content:space-between;gap:8px;padding:12px 0;color:var(--text);font-size:14px}
        .side-list a:hover{color:var(--blue);padding-left:4px}
        .guide-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
        .guide-item{display:grid;grid-template-columns:60px 1fr auto;gap:20px;align-items:center;padding:24px 28px;border-bottom:1px solid var(--line);transition:.25s}
        .guide-item:last-child{border-bottom:0}
        .guide-item:hover{background:#fbfdff;box-shadow:inset 4px 0 0 var(--blue)}
        .guide-number{width:42px;height:42px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:800}
        .guide-item h3{font-size:19px;margin:0 0 5px}
        .guide-item p{font-size:14px;color:var(--muted);margin:0}
        .guide-meta{white-space:nowrap;text-align:right}
        .badge,.tag{display:inline-block;padding:4px 10px;border-radius:30px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700}
        .guide-meta small{display:block;color:var(--muted);font-size:12px;margin-top:6px}
        .text-link{font-weight:700;font-size:14px}
        .module-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
        .module-main,.module-side,.step-panel,.notice,.faq-wrap,.update-box,.cta-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
        .module-main{padding:30px}
        .module-main h3{font-size:25px;margin-bottom:12px}
        .module-main p{color:var(--muted);margin-bottom:24px}
        .module-points{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .module-point{padding:17px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fbfdff}
        .module-point strong{display:block;color:var(--ink);margin-bottom:4px}
        .module-point span{font-size:13px;color:var(--muted)}
        .module-side{padding:0;overflow:hidden}
        .module-side img{width:100%;height:210px;object-fit:cover}
        .module-side-content{padding:24px}
        .module-side-content h3{font-size:20px;margin-bottom:8px}
        .module-side-content p{font-size:14px;color:var(--muted);margin:0}
        .steps-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
        .step-panel{padding:30px}
        .timeline{border-left:2px solid #cfe0f5;margin:7px 0 0 13px;padding-left:28px}
        .timeline-item{position:relative;padding:0 0 25px}
        .timeline-item:last-child{padding-bottom:0}
        .timeline-item:before{content:"";position:absolute;left:-36px;top:7px;width:13px;height:13px;background:var(--blue);border:3px solid #dcecff;border-radius:50%}
        .timeline-item h3{font-size:18px;margin-bottom:5px}
        .timeline-item p{margin:0;color:var(--muted);font-size:14px}
        .visual-card{min-height:330px;border-radius:var(--radius);background:linear-gradient(135deg,#eaf4ff,#f8fcff);border:1px solid #d8e7f7;padding:28px;display:flex;align-items:flex-end;position:relative;overflow:hidden}
        .visual-card:before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:#cde6ff;right:-45px;top:-55px;opacity:.75}
        .visual-card:after{content:"";position:absolute;width:150px;height:150px;border-radius:50%;background:#dff4f5;left:-55px;bottom:-60px}
        .visual-caption{position:relative;z-index:1;background:rgba(255,255,255,.9);padding:20px;border-radius:14px;width:100%;box-shadow:0 8px 22px rgba(41,93,145,.1)}
        .visual-caption strong{display:block;color:var(--ink);font-size:18px;margin-bottom:6px}
        .visual-caption span{font-size:14px;color:var(--muted)}
        .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .scene-card{padding:23px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s}
        .scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#bcd4f3}
        .scene-index{color:var(--blue);font-size:13px;font-weight:800}
        .scene-card h3{font-size:18px;margin:8px 0}
        .scene-card p{font-size:13px;color:var(--muted);margin:0}
        .faq-wrap{padding:28px}
        .accordion{margin:0}
        .accordion-title{border:1px solid var(--line)!important;border-radius:10px!important;margin-bottom:8px;background:#fff;color:var(--ink);font-weight:700;padding:17px 20px}
        .accordion-title:hover{background:var(--blue-soft);color:var(--blue)}
        .accordion-content{border:1px solid var(--line);border-top:0;border-radius:0 0 10px 10px;background:#fbfdff;color:var(--muted);font-size:14px;margin-top:-8px;margin-bottom:8px}
        .update-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}
        .update-box{padding:28px}
        .update-row{display:flex;gap:16px;padding:17px 0;border-bottom:1px solid var(--line)}
        .update-row:last-child{border-bottom:0;padding-bottom:0}
        .update-date{min-width:86px;color:var(--blue);font-size:13px;font-weight:800}
        .update-row strong{display:block;color:var(--ink);font-size:16px}
        .update-row span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
        .notice{padding:24px;background:#f2f8ff}
        .notice h3{font-size:20px;margin-bottom:10px}
        .notice p{font-size:14px;color:var(--muted);margin:0}
        .notice-list{list-style:none;margin:16px 0 0;padding:0}
        .notice-list li{padding:8px 0;border-top:1px solid #dceaf8;color:var(--text);font-size:14px}
        .notice-list li:before{content:"•";color:var(--blue);font-weight:800;margin-right:8px}
        .cta-box{padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(105deg,#eaf4ff,#f8fcff)}
        .cta-box h2{margin-bottom:8px;font-size:28px}
        .cta-box p{margin:0;color:var(--muted)}
        .button{display:inline-block;border-radius:11px;padding:12px 20px;font-weight:700;margin:0;transition:.25s ease}
        .button.primary{background:var(--blue);color:#fff}
        .button.primary:hover{background:#3d7be1;transform:translateY(-2px);box-shadow:0 9px 20px rgba(40,104,215,.28)}
        .button.secondary{border:1px solid #bfd3ed;color:var(--blue);background:#fff}
        .button.secondary:hover{background:var(--blue-soft);border-color:var(--blue)}
        .button:focus,.nav-list a:focus,.menu-toggle:focus{outline:3px solid rgba(40,104,215,.25);outline-offset:2px}
        .site-footer{background:#122844;color:#b5c7dc;padding:54px 0 25px}
        .site-footer .brand{color:#fff}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:35px}
        .footer-desc{font-size:14px;max-width:310px;color:#9eb3cc;margin:17px 0 0}
        .footer-title{color:#fff;font-weight:700;margin-bottom:13px}
        .footer-links{list-style:none;margin:0;padding:0}
        .footer-links li{margin:7px 0}
        .footer-links a{color:#b5c7dc;font-size:14px}
        .footer-links a:hover{color:#fff}
        .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#8fa7c1;font-size:12px}
        @media (max-width:1024px){
            .guide-layout,.module-layout,.steps-wrap{grid-template-columns:1fr}
            .guide-side{position:static}
            .scene-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media (max-width:768px){
            .container{padding:0 20px}
            .topbar{min-height:68px}
            .menu-toggle{display:block}
            .nav-list{display:none;position:absolute;top:68px;left:0;right:0;padding:10px 20px 16px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 22px rgba(28,72,128,.08)}
            .nav-list.is-open{display:block}
            .nav-list li{margin:4px 0}
            .nav-list a{padding:12px 14px}
            .page-banner{padding:58px 0 56px}
            section{padding:58px 0}
            .guide-item{grid-template-columns:45px 1fr}
            .guide-meta{grid-column:2;text-align:left}
            .module-points,.update-layout{grid-template-columns:1fr}
            .cta-box{display:block;padding:30px}
            .cta-box .button{margin-top:20px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-grid>div:first-child{grid-column:1/-1}
            .copyright{display:block}
            .copyright span{display:block;margin-top:6px}
        }
        @media (max-width:520px){
            body{font-size:15px}
            .brand{font-size:18px}
            .brand-mark{width:33px;height:33px}
            .page-banner h1{font-size:32px}
            .scene-grid{grid-template-columns:1fr}
            .guide-item{padding:20px}
            .guide-item h3{font-size:17px}
            .visual-card{min-height:260px}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div:first-child{grid-column:auto}
        }

/* roulang page: category2 */
:root{
      --blue:#2868d7;--blue-dark:#174b9f;--blue-soft:#edf5ff;--cyan:#55b9c8;
      --ink:#17253c;--text:#40516a;--muted:#78869a;--line:#dce6f2;
      --bg:#f7faff;--white:#fff;--orange:#e28a43;--green:#2d9b72;
      --radius:18px;--radius-sm:12px;--shadow:0 12px 34px rgba(28,72,128,.09);
      --shadow-hover:0 18px 42px rgba(28,72,128,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:var(--blue);text-decoration:none;transition:.25s ease}
    a:hover{color:var(--blue-dark)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    .container{max-width:1200px;margin:0 auto;padding:0 28px}
    .site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between}
    .brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;font-size:21px;letter-spacing:.02em}
    .brand:hover{color:var(--blue)}
    .brand-mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:17px;box-shadow:0 7px 16px rgba(40,104,215,.25)}
    .nav-list{display:flex;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
    .nav-list a{display:block;padding:10px 15px;border-radius:10px;color:#52637b;font-size:14px;font-weight:600}
    .nav-list a:hover,.nav-list a.active{color:var(--blue);background:var(--blue-soft)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:10px;padding:8px 12px;cursor:pointer}
    .menu-toggle:focus,.button:focus,a:focus,input:focus{outline:3px solid rgba(40,104,215,.2);outline-offset:2px}

    .page-hero{padding:72px 0 70px;position:relative;overflow:hidden;background:#102746;color:#fff}
    .page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(16,39,70,.96),rgba(16,39,70,.72)),url('/assets/images/803409df710b1643.jpg') center/cover;opacity:.95}
    .page-hero .container{position:relative;z-index:1;text-align:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#a8ddff;font-size:13px;font-weight:700;letter-spacing:.1em;margin-bottom:14px}
    .eyebrow:before{content:"";width:24px;height:2px;background:#62c2df}
    h1,h2,h3{color:var(--ink);line-height:1.35;margin-top:0}
    .page-hero h1{color:#fff;font-size:clamp(32px,5vw,52px);margin:0 auto 16px;letter-spacing:.01em}
    .hero-desc{max-width:700px;margin:0 auto 28px;color:#c9d9ec;font-size:17px}
    .search-panel{max-width:760px;margin:0 auto;display:flex;gap:10px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:15px;padding:9px}
    .search-panel input{flex:1;min-width:0;border:0;border-radius:10px;padding:13px 16px;background:#fff;color:var(--ink);box-shadow:none}
    .search-panel button{border:0;border-radius:10px;padding:12px 20px;background:var(--blue);color:#fff;font-weight:700;cursor:pointer}
    .search-panel button:hover{background:#3d7be1}
    .topic-chips{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:18px}
    .topic-chips a{padding:5px 12px;border:1px solid rgba(255,255,255,.27);border-radius:30px;color:#d7e8fa;font-size:13px}
    .topic-chips a:hover{background:#fff;color:var(--blue)}

    section{padding:78px 0}
    .section-soft{background:var(--blue-soft)}
    .section-head{max-width:720px;margin-bottom:34px}
    .section-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:8px}
    .section-head h2{font-size:32px;margin-bottom:10px}
    .section-lead{color:var(--muted);margin:0}
    .content-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.7fr);gap:26px;align-items:start}
    .news-list,.side-card,.timeline,.info-card,.change-box,.faq-wrap,.cta-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .news-list{padding:10px 28px}
    .news-item{display:grid;grid-template-columns:92px 1fr auto;gap:20px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line)}
    .news-item:last-child{border-bottom:0}
    .news-date{color:var(--blue);font-size:13px;font-weight:800;line-height:1.4}
    .news-date span{display:block;color:var(--muted);font-weight:500;margin-top:4px}
    .news-item h3{font-size:19px;margin:0 0 5px}
    .news-item p{font-size:14px;color:var(--muted);margin:0}
    .tag{display:inline-block;padding:4px 10px;border-radius:30px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700;margin-bottom:7px}
    .news-link{white-space:nowrap;font-size:14px;font-weight:700}
    .side-card{padding:25px}
    .side-card h3{font-size:21px;margin-bottom:14px}
    .side-card ul{list-style:none;margin:0;padding:0}
    .side-card li{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
    .side-card li:last-child{border-bottom:0}
    .side-card strong{display:block;color:var(--ink);font-size:15px}
    .side-card span{color:var(--muted)}
    .timeline{padding:30px 36px}
    .timeline-list{border-left:2px solid #cfe0f4;padding-left:30px}
    .timeline-item{position:relative;padding:0 0 30px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;left:-39px;top:5px;width:14px;height:14px;background:var(--blue);border:3px solid #dcecff;border-radius:50%}
    .timeline-item h3{font-size:19px;margin:0 0 4px}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .version-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px}
    .version-meta span{font-size:12px;color:var(--blue);background:var(--blue-soft);padding:3px 9px;border-radius:20px}
    .info-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
    .info-card{padding:30px}
    .info-card h3{font-size:23px;margin-bottom:12px}
    .info-card p{color:var(--muted);margin:0 0 16px}
    .step-list{list-style:none;margin:0;padding:0}
    .step-list li{display:flex;gap:13px;padding:13px 0;border-top:1px solid var(--line);font-size:14px}
    .step-no{width:27px;height:27px;flex:0 0 27px;display:grid;place-items:center;border-radius:9px;background:var(--blue);color:#fff;font-size:13px;font-weight:800}
    .notice{padding:18px 20px;background:#f9fcff;border:1px solid #cfe1f5;border-radius:13px;color:var(--text);font-size:14px}
    .notice strong{color:var(--ink)}
    .change-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .change-box{padding:25px}
    .change-box h3{font-size:20px;margin-bottom:10px}
    .change-box p{font-size:14px;color:var(--muted);margin:0 0 12px}
    .change-box ul{margin:0;padding-left:20px;color:var(--text);font-size:14px}
    .change-box.add h3{color:var(--green)}
    .change-box.fix h3{color:var(--orange)}
    .change-box.optimize h3{color:var(--blue)}
    .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .device-card{padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow)}
    .device-card h3{font-size:18px;margin-bottom:7px}
    .device-card p{font-size:14px;color:var(--muted);margin:0}
    .faq-wrap{padding:26px}
    .accordion{margin:0;background:transparent}
    .accordion-title{border:1px solid var(--line)!important;border-radius:10px!important;margin-bottom:8px;background:#fff;color:var(--ink);font-weight:700;padding:17px 20px}
    .accordion-title:hover{background:var(--blue-soft);color:var(--blue)}
    .accordion-content{border:1px solid var(--line);border-top:0;margin:-8px 0 8px;padding:17px 20px;color:var(--muted);font-size:14px;background:#fbfdff}
    .cta-box{padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(105deg,#eaf4ff,#f8fcff)}
    .cta-box h2{font-size:28px;margin-bottom:8px}
    .cta-box p{margin:0;color:var(--muted)}
    .button-row{display:flex;flex-wrap:wrap;gap:12px}
    .button{border-radius:11px;padding:12px 20px;font-weight:700;margin:0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff}
    .button.primary:hover{background:#3d7be1;transform:translateY(-2px);box-shadow:0 9px 20px rgba(40,104,215,.28)}
    .button.secondary{background:#fff;border:1px solid #bcd0eb;color:var(--blue)}
    .button.secondary:hover{background:var(--blue-soft);border-color:var(--blue)}

    .site-footer{background:#122844;color:#b5c7dc;padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:35px}
    .site-footer .brand{color:#fff}
    .footer-desc{max-width:350px;color:#9eb3ca;font-size:14px;margin:16px 0 0}
    .footer-title{color:#fff;font-weight:700;margin-bottom:12px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#b5c7dc;font-size:14px}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:18px;color:#879db7;font-size:12px}

    @media(max-width:1024px){
      .content-layout{grid-template-columns:1fr}
      .side-card{display:grid;grid-template-columns:1fr 1fr;gap:20px}
      .side-card h3{grid-column:1/-1;margin-bottom:0}
      .info-grid{grid-template-columns:1fr}
    }
    @media(max-width:768px){
      .container{padding:0 20px}
      .topbar{min-height:68px}
      .menu-toggle{display:block}
      .nav-list{display:none;position:absolute;left:20px;right:20px;top:70px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
      .nav-list.is-open{display:block}
      .nav-list li{margin:3px 0}
      .nav-list a{padding:12px 14px}
      .page-hero{padding:56px 0}
      section{padding:60px 0}
      .news-item{grid-template-columns:70px 1fr}
      .news-link{grid-column:2}
      .change-grid,.device-grid{grid-template-columns:1fr}
      .cta-box{display:block;padding:30px}
      .cta-box .button-row{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .copyright{display:block}
      .copyright span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .brand{font-size:18px}
      .brand-mark{width:33px;height:33px}
      .search-panel{display:block;background:transparent;border:0;padding:0}
      .search-panel input{width:100%;margin-bottom:10px}
      .search-panel button{width:100%}
      .topic-chips{justify-content:flex-start}
      .page-hero h1{font-size:32px}
      .hero-desc{font-size:15px}
      .news-list{padding:8px 18px}
      .news-item{display:block;padding:20px 0}
      .news-date{margin-bottom:10px}
      .news-link{display:inline-block;margin-top:12px}
      .side-card{display:block}
      .side-card h3{margin-bottom:12px}
      .timeline{padding:24px 22px}
      .timeline-list{padding-left:25px}
      .timeline-item:before{left:-34px}
      .faq-wrap{padding:15px}
      .accordion-title{font-size:15px;padding:15px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }