/* roulang page: index */
:root{
            --blue:#2476c8;
            --blue-dark:#15569a;
            --blue-soft:#eaf4ff;
            --sky:#d9efff;
            --coral:#f29b78;
            --coral-soft:#fff1ea;
            --ink:#17324d;
            --muted:#61758a;
            --line:#dce8f2;
            --paper:#ffffff;
            --mist:#f5f9fc;
            --shadow:0 16px 40px rgba(27,75,116,.10);
            --shadow-soft:0 8px 24px rgba(27,75,116,.07);
            --radius:18px;
            --max:1240px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{
            color:var(--ink);
            background:var(--paper);
            font-family:"Noto Sans CJK SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            line-height:1.75;
            font-size:16px;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:50;
            background:rgba(255,255,255,.94);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(14px);
            transition:box-shadow .25s ease;
        }
        .nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
        .brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
        .brand-mark{
            width:36px;height:36px;border-radius:12px 12px 12px 5px;
            background:linear-gradient(145deg,#64bdf1,#2476c8);
            position:relative;box-shadow:0 6px 12px rgba(36,118,200,.2)
        }
        .brand-mark:after{content:"";position:absolute;width:10px;height:10px;background:#fff;border-radius:50%;right:8px;top:8px;box-shadow:-10px 10px 0 -2px #fff}
        .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
        .nav-links a{padding:10px 15px;border-radius:10px;color:#536c83;font-size:14px;font-weight:600;transition:.2s}
        .nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue-soft)}
        .nav-cta,.btn-primary{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            min-height:44px;padding:0 20px;border-radius:11px;border:1px solid var(--blue);
            color:#fff;background:var(--blue);font-weight:700;font-size:14px;
            box-shadow:0 7px 16px rgba(36,118,200,.18);transition:.22s
        }
        .nav-cta:hover,.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px)}
        .btn-secondary{
            display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;
            border:1px solid #a9cce8;border-radius:11px;color:var(--blue-dark);background:#fff;font-weight:700;transition:.22s
        }
        .btn-secondary:hover{background:var(--blue-soft);border-color:var(--blue)}
        .nav-toggle{display:none;border:0;background:none;color:var(--ink);font-size:26px}
        .hero{
            min-height:600px;display:flex;align-items:center;position:relative;overflow:hidden;
            background:
                linear-gradient(90deg,rgba(13,49,83,.86) 0%,rgba(18,68,111,.68) 45%,rgba(21,83,129,.25) 100%),
                url('/assets/images/9d2e40f758a4d5ff.jpg') center/cover;
        }
        .hero:after{content:"";position:absolute;inset:auto 0 0;height:90px;background:linear-gradient(transparent,#fff)}
        .hero-content{position:relative;z-index:2;max-width:780px;color:#fff;padding:86px 0 110px}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em
        }
        .hero .eyebrow{color:#cfeaff}
        .eyebrow:before{content:"";width:22px;height:2px;background:currentColor}
        h1{font-size:clamp(38px,5.4vw,68px);line-height:1.16;letter-spacing:-.04em;margin:20px 0 22px;max-width:760px}
        .hero-copy{font-size:18px;line-height:1.9;color:#eaf5ff;max-width:720px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 27px}
        .hero .btn-primary{background:#fff;color:var(--blue-dark);border-color:#fff}
        .hero .btn-primary:hover{background:#e6f4ff;border-color:#e6f4ff}
        .hero .btn-secondary{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.55);color:#fff}
        .trust-row{display:flex;flex-wrap:wrap;gap:10px}
        .trust-row span{padding:7px 12px;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.11);border-radius:20px;font-size:13px;color:#f5fbff}
        section{padding:92px 0}
        .section-head{max-width:720px;margin-bottom:38px}
        .section-head h2{font-size:clamp(27px,3.3vw,42px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 14px}
        .section-head p{color:var(--muted);font-size:16px}
        .band{background:var(--mist)}
        .intro-strip{margin-top:-42px;position:relative;z-index:4}
        .quick-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
        .quick-item{padding:25px 24px;border-right:1px solid var(--line)}
        .quick-item:last-child{border-right:0}
        .quick-item strong{display:block;font-size:18px;margin-bottom:5px}
        .quick-item span{font-size:14px;color:var(--muted)}
        .feature{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .feature.reverse .feature-visual{order:2}
        .feature-copy h2{font-size:38px;line-height:1.28;margin:12px 0 18px}
        .feature-copy p{color:var(--muted);margin-bottom:22px}
        .feature-list{list-style:none;display:grid;gap:13px;margin:24px 0}
        .feature-list li{position:relative;padding-left:29px;color:#405d75}
        .feature-list li:before{content:"✓";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-weight:800;text-align:center;line-height:20px}
        .visual-card{border:1px solid var(--line);border-radius:24px;background:#fff;padding:14px;box-shadow:var(--shadow)}
        .visual-card img{width:100%;height:330px;object-fit:cover;border-radius:15px}
        .visual-caption{display:flex;justify-content:space-between;align-items:center;padding:17px 8px 4px;font-size:14px;color:var(--muted)}
        .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:20px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:800}
        .rank-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}
        .rank-main,.rank-side{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-soft)}
        .rank-main h3{font-size:25px;margin:13px 0}
        .rank-row{display:flex;align-items:center;gap:15px;padding:16px 0;border-bottom:1px solid var(--line)}
        .rank-row:last-child{border-bottom:0}
        .rank-num{width:34px;height:34px;border-radius:10px;background:var(--blue-soft);color:var(--blue-dark);display:grid;place-items:center;font-weight:800}
        .rank-row strong{display:block;font-size:16px}.rank-row small{color:var(--muted)}
        .score{margin-left:auto;color:#e48a4f;font-weight:800;white-space:nowrap}
        .data-lines{display:grid;gap:17px;margin-top:20px}
        .data-line{display:grid;grid-template-columns:100px 1fr 42px;gap:12px;align-items:center;font-size:13px;color:var(--muted)}
        .bar{height:8px;background:#edf3f8;border-radius:10px;overflow:hidden}.bar i{display:block;height:100%;background:var(--blue);border-radius:10px}
        .timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
        .timeline:before{content:"";height:1px;background:#c8dbea;position:absolute;left:10%;right:10%;top:24px}
        .time-card{position:relative;z-index:1;padding:0 12px}
        .time-dot{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#fff;border:8px solid var(--sky);color:var(--blue);font-weight:800;margin-bottom:20px}
        .time-card h3{font-size:19px;margin-bottom:9px}.time-card p{font-size:14px;color:var(--muted)}
        .compare{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow-soft)}
        table{width:100%;border-collapse:collapse;min-width:680px}
        th,td{text-align:left;padding:18px 22px;border-bottom:1px solid var(--line)}
        th{background:var(--blue-soft);font-size:14px;color:var(--blue-dark)}td{color:#506a80;font-size:14px}tr:last-child td{border-bottom:0}
        .feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .feedback{padding:26px;background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow-soft)}
        .feedback p{font-size:15px;color:#486176;margin:14px 0 20px}.feedback footer{display:flex;justify-content:space-between;color:#8494a2;font-size:12px}
        .update-list{display:grid;gap:0;border-top:1px solid var(--line)}
        .update-item{display:grid;grid-template-columns:125px 120px 1fr auto;gap:20px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}
        .update-item time{font-size:14px;color:var(--muted)}.update-item h3{font-size:17px}.update-item p{font-size:14px;color:var(--muted)}
        .arrow{color:var(--blue);font-size:22px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:19px;overflow:hidden;background:#fff;box-shadow:var(--shadow-soft)}
        .step{padding:28px 24px;border-right:1px solid var(--line);position:relative}.step:last-child{border-right:0}
        .step-num{font-size:13px;color:var(--blue);font-weight:800;letter-spacing:.1em}.step h3{font-size:18px;margin:12px 0 8px}.step p{font-size:14px;color:var(--muted)}
        .safety{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}
        .safety-box{background:var(--coral-soft);border:1px solid #f6d6c8;border-radius:20px;padding:31px}
        .safety-box h2{font-size:30px;line-height:1.3;margin:12px 0}
        .safety-box p{color:#755e57}.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .check{padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}.check strong{display:block;margin-bottom:5px}.check span{font-size:13px;color:var(--muted)}
        .faq-list{max-width:900px;margin:auto;display:grid;gap:12px}
        details{border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 4px 12px rgba(27,75,116,.04)}
        summary{list-style:none;cursor:pointer;min-height:58px;padding:17px 22px;font-weight:700;display:flex;align-items:center;justify-content:space-between}
        summary::-webkit-details-marker{display:none}summary:after{content:"+";font-size:24px;color:var(--blue);font-weight:400}details[open] summary:after{content:"−"}
        details p{padding:0 22px 20px;color:var(--muted);font-size:14px}
        .closing{padding:58px 0;background:linear-gradient(100deg,#eaf6ff,#fff5ef)}
        .closing-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.closing h2{font-size:31px;margin-bottom:7px}.closing p{color:var(--muted)}
        .site-footer{background:#183a58;color:#d7e7f4;padding:58px 0 27px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:40px}
        .footer-brand{color:#fff;margin-bottom:13px}.footer-text{font-size:14px;color:#aac2d4;max-width:280px}
        .footer-col h3{font-size:14px;color:#fff;margin-bottom:14px}.footer-col a{display:block;color:#aac2d4;font-size:13px;margin:8px 0;transition:.2s}.footer-col a:hover{color:#fff}
        .copyright{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;color:#9db7ca;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        .fixed-cta{position:fixed;bottom:18px;right:24px;z-index:40;display:flex;align-items:center;gap:15px;padding:9px 9px 9px 18px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:0 12px 32px rgba(14,55,89,.18);font-size:13px;color:var(--muted)}
        .fixed-cta .btn-primary{min-height:40px;padding:0 15px}
        a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #f3a57e;outline-offset:3px}
        @media(max-width:1100px){.nav-links a{padding:9px 9px}.feature{gap:35px}.container{width:min(var(--max),calc(100% - 36px))}}
        @media(max-width:900px){
            .nav-links{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 22px;box-shadow:var(--shadow-soft);flex-direction:column;align-items:stretch}
            .nav-links.open{display:flex}.nav-links a{padding:13px}.nav-cta{margin-left:auto}.nav-toggle{display:block;order:4}
            .quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item:nth-child(2){border-right:0}.quick-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .feature,.rank-panel,.safety{grid-template-columns:1fr}.feature.reverse .feature-visual{order:0}
            .timeline{grid-template-columns:1fr;gap:22px}.timeline:before{left:24px;top:24px;bottom:24px;width:1px;height:auto;right:auto}.time-card{display:grid;grid-template-columns:60px 1fr;gap:12px}.time-dot{margin:0}
            .feedback-grid{grid-template-columns:1fr 1fr}.update-item{grid-template-columns:100px 100px 1fr}
            .update-item .arrow{display:none}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
        }
        @media(max-width:600px){
            body{font-size:15px}.container{width:min(100% - 30px,var(--max))}.nav-wrap{height:68px}.nav-links{top:68px}.brand{font-size:18px}.nav-cta{display:none}
            .hero{min-height:620px}.hero-content{padding:75px 0 105px}.hero-copy{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions a{width:100%}
            section{padding:68px 0}.intro-strip{margin-top:-30px}.quick-grid{grid-template-columns:1fr}.quick-item{border-right:0!important;border-bottom:1px solid var(--line)!important}.quick-item:last-child{border-bottom:0!important}
            .feature-copy h2{font-size:29px}.visual-card img{height:250px}.rank-main,.rank-side{padding:21px}.data-line{grid-template-columns:88px 1fr 35px}
            .feedback-grid{grid-template-columns:1fr}.update-item{grid-template-columns:1fr;gap:4px;padding:18px 0}.update-item p{margin-top:4px}
            .steps{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)!important}.step:last-child{border-bottom:0!important}
            .check-grid{grid-template-columns:1fr}.closing-inner{display:block}.closing .btn-primary{margin-top:20px;width:100%}
            .footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:7px}
            .fixed-cta{left:12px;right:12px;bottom:10px;justify-content:space-between}.fixed-cta .btn-primary{white-space:nowrap}
        }

/* roulang page: category1 */
:root{
 --blue:#2476c8;
 --blue-dark:#15569a;
 --blue-soft:#eaf4ff;
 --sky:#d9efff;
 --coral:#f29b78;
 --coral-soft:#fff1ea;
 --ink:#17324d;
 --muted:#61758a;
 --line:#dce8f2;
 --paper:#ffffff;
 --mist:#f5f9fc;
 --shadow:0 16px 40px rgba(27,75,116,.10);
 --shadow-soft:0 8px 24px rgba(27,75,116,.07);
 --radius:18px;
 --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 color:var(--ink);
 background:var(--paper);
 font-family:"Noto Sans CJK SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
 line-height:1.75;
 font-size:16px;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.site-header{
 position:sticky;
 top:0;
 z-index:50;
 background:rgba(255,255,255,.95);
 border-bottom:1px solid var(--line);
 backdrop-filter:blur(14px);
 transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 22px rgba(27,75,116,.08)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{
 width:36px;height:36px;border-radius:12px 12px 12px 5px;
 background:linear-gradient(145deg,#64bdf1,#2476c8);
 position:relative;
 box-shadow:0 6px 12px rgba(36,118,200,.2)
}
.brand-mark:after{
 content:"";position:absolute;width:10px;height:10px;background:#fff;border-radius:50%;
 right:8px;top:8px;box-shadow:-10px 10px 0 -2px #fff
}
.nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav-links a{
 padding:10px 15px;border-radius:10px;color:#536c83;font-size:14px;font-weight:600;transition:.2s
}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue-soft)}
.nav-cta,.btn-primary{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:0 20px;border-radius:11px;border:1px solid var(--blue);
 color:#fff;background:var(--blue);font-weight:700;font-size:14px;
 box-shadow:0 7px 16px rgba(36,118,200,.18);transition:.22s
}
.nav-cta:hover,.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px)}
.btn-secondary{
 display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;
 border:1px solid #a9cce8;border-radius:11px;color:var(--blue-dark);background:#fff;font-weight:700;transition:.22s
}
.btn-secondary:hover{background:var(--blue-soft);border-color:var(--blue)}
button:focus-visible,a:focus-visible{outline:3px solid rgba(36,118,200,.35);outline-offset:3px}
.nav-toggle{display:none;border:0;background:none;color:var(--ink);font-size:26px;line-height:1}
.page-intro{
 padding:72px 0 64px;
 background:
 linear-gradient(90deg,rgba(234,244,255,.97),rgba(245,249,252,.83)),
 url('/assets/images/90148bfdaa9a992d.jpg') center/cover;
 border-bottom:1px solid var(--line);
}
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:13px;margin-bottom:22px}
.breadcrumb a{color:var(--blue-dark)}
.eyebrow,.section-kicker{
 display:inline-flex;align-items:center;gap:8px;color:var(--blue);
 font-size:13px;font-weight:800;letter-spacing:.08em
}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:currentColor}
.page-intro h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.04em;margin:14px 0 18px}
.lead{font-size:18px;color:#526e86;max-width:700px;margin-bottom:27px}
.intro-actions{display:flex;flex-wrap:wrap;gap:12px}
.summary-box{
 padding:26px;background:rgba(255,255,255,.88);border:1px solid rgba(188,216,236,.9);
 border-radius:20px;box-shadow:var(--shadow-soft)
}
.summary-box strong{display:block;font-size:18px;margin-bottom:14px}
.summary-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.summary-list li{display:flex;gap:11px;align-items:flex-start;color:#4f6a81;font-size:14px}
.summary-list li:before{content:"✓";width:21px;height:21px;flex:none;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-weight:800;text-align:center;line-height:21px}
section{padding:88px 0}
.section-head{max-width:740px;margin-bottom:36px}
.section-head h2{font-size:clamp(28px,3.4vw,42px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 14px}
.section-head p{color:var(--muted);font-size:16px}
.filter-section{padding:34px 0;background:#fff;border-bottom:1px solid var(--line)}
.filter-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.filter-label{color:var(--ink);font-size:14px;font-weight:800;margin-right:5px}
.filter-item{padding:9px 15px;border:1px solid var(--line);border-radius:22px;color:var(--muted);font-size:14px;background:#fff;transition:.2s}
.filter-item:hover,.filter-item.active{color:var(--blue-dark);background:var(--blue-soft);border-color:#acd2ee}
.feature-section{background:var(--mist)}
.function-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.function-card{
 min-height:280px;padding:28px;display:flex;flex-direction:column;
 border:1px solid var(--line);border-radius:var(--radius);background:#fff;
 box-shadow:var(--shadow-soft);transition:.25s
}
.function-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.card-number{font-size:30px;color:#b5d5ed;font-weight:800;line-height:1}
.tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:20px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:800}
.tag.warm{background:var(--coral-soft);color:#b76548}
.function-card h3{font-size:23px;margin:0 0 10px}
.function-card p{color:var(--muted);font-size:15px;margin-bottom:18px}
.card-link{display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);font-weight:700;font-size:14px;margin-top:auto}
.card-link:after{content:"→";transition:.2s}
.card-link:hover{color:var(--blue);gap:12px}
.mini-visual{
 margin-top:18px;height:9px;border-radius:10px;background:#edf5fa;overflow:hidden
}
.mini-visual span{display:block;height:100%;border-radius:10px;background:linear-gradient(90deg,#8ed1f3,#2476c8)}
.compare-section{background:#fff}
.compare-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch}
.compare-note{
 padding:32px;border-radius:20px;background:var(--blue-dark);color:#fff;
 background-image:linear-gradient(135deg,rgba(255,255,255,.08),transparent)
}
.compare-note .section-kicker{color:#cceaff}
.compare-note h2{font-size:31px;line-height:1.3;margin:14px 0}
.compare-note p{color:#dbeeff;font-size:15px}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-soft)}
.compare-table th,.compare-table td{text-align:left;padding:18px 20px;border-bottom:1px solid var(--line);vertical-align:top}
.compare-table th{font-size:13px;color:var(--muted);background:var(--mist);font-weight:800}
.compare-table td{font-size:14px;color:#405d75;background:#fff}
.compare-table tr:last-child td{border-bottom:0}
.compare-table td:first-child{color:var(--ink);font-weight:800}
.status{display:inline-flex;padding:4px 9px;border-radius:14px;background:#eef8f2;color:#3b8760;font-size:12px;font-weight:800}
.status.blue{background:var(--blue-soft);color:var(--blue-dark)}
.steps-section{background:var(--coral-soft)}
.steps-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}
.steps-image{border-radius:22px;overflow:hidden;box-shadow:var(--shadow);border:8px solid #fff}
.steps-image img{height:380px;width:100%;object-fit:cover}
.steps-list{display:grid;gap:0}
.step-item{display:grid;grid-template-columns:54px 1fr;gap:18px;position:relative;padding-bottom:26px}
.step-item:not(:last-child):after{content:"";position:absolute;left:26px;top:53px;width:1px;height:calc(100% - 45px);background:#c7ddeb}
.step-index{
 width:52px;height:52px;border-radius:16px;background:#fff;color:var(--blue);
 display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
 box-shadow:0 7px 18px rgba(129,95,77,.10);position:relative;z-index:1
}
.step-item h3{font-size:19px;margin:2px 0 5px}
.step-item p{font-size:14px;color:#6c6b6a;margin:0}
.scene-section{background:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene-card{padding:25px;border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:var(--shadow-soft)}
.scene-card:nth-child(2){margin-top:28px;background:#f8fcff}
.scene-card:nth-child(3){margin-top:56px;background:#fffaf7}
.scene-icon{width:42px;height:42px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:17px}
.scene-card h3{font-size:19px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--muted);margin:0}
.guide-section{background:var(--mist)}
.guide-layout{display:grid;grid-template-columns:1fr .75fr;gap:30px}
.guide-list{display:grid;gap:12px}
.guide-item{display:grid;grid-template-columns:112px 1fr auto;gap:18px;align-items:center;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.2s}
.guide-item:hover{border-color:#a9cce8;box-shadow:var(--shadow-soft)}
.guide-date{font-size:13px;color:var(--blue-dark);font-weight:800}
.guide-item h3{font-size:17px;margin:0 0 4px}
.guide-item p{font-size:13px;color:var(--muted);margin:0}
.guide-arrow{font-size:22px;color:#8db9d9}
.evidence-card{padding:30px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}
.evidence-card h3{font-size:21px;margin-bottom:18px}
.evidence-list{list-style:none;padding:0;margin:0;display:grid;gap:17px}
.evidence-list li{display:flex;gap:12px;color:#536d82;font-size:14px}
.evidence-list strong{display:block;color:var(--ink);margin-bottom:2px}
.evidence-mark{width:25px;height:25px;flex:none;border-radius:8px;background:var(--coral-soft);color:#c36b4c;text-align:center;line-height:25px;font-size:13px;font-weight:800}
.faq-section{background:#fff}
.faq-list{max-width:920px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{
 width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
 padding:20px 0;border:0;background:none;color:var(--ink);text-align:left;font-weight:800;font-size:17px
}
.faq-question span:last-child{font-size:24px;color:var(--blue);font-weight:400;transition:.2s}
.faq-answer{display:none;padding:0 42px 21px 0;color:var(--muted);font-size:15px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.cta-section{padding:60px 0}
.cta-box{
 display:flex;align-items:center;justify-content:space-between;gap:25px;
 padding:38px 44px;border-radius:22px;background:var(--blue-soft);border:1px solid #c6e0f2
}
.cta-box h2{font-size:28px;margin:0 0 7px}
.cta-box p{color:var(--muted);margin:0}
.site-footer{padding:64px 0 24px;background:#12334f;color:#dcecf8}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
.footer-brand{color:#fff}
.footer-text{color:#abc6d9;font-size:14px;max-width:290px;margin:18px 0 0}
.footer-col{display:grid;align-content:start;gap:10px}
.footer-col h3{font-size:14px;color:#fff;margin:0 0 7px}
.footer-col a{font-size:14px;color:#abc6d9;transition:.2s}
.footer-col a:hover{color:#fff}
.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(220,236,248,.16);color:#9bb8cc;font-size:12px}
.fixed-bar{
 position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px 0;
 background:rgba(255,255,255,.96);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(27,75,116,.08)
}
.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.fixed-inner p{margin:0;color:var(--muted);font-size:14px}
.fixed-inner strong{color:var(--ink);margin-right:8px}
.empty-state{display:none}
@media (max-width:1200px){
 .nav-wrap{gap:18px}
 .nav-links a{padding:10px 10px}
 .intro-grid{gap:38px}
}
@media (max-width:992px){
 .nav-links{
  position:absolute;left:24px;right:24px;top:84px;display:none;
  flex-direction:column;align-items:stretch;padding:12px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow)
 }
 .nav-links.open{display:flex}
 .nav-links a{padding:13px 15px}
 .nav-cta{display:none}
 .nav-toggle{display:block;margin-left:auto}
 .intro-grid,.compare-layout,.steps-layout,.guide-layout{grid-template-columns:1fr}
 .page-intro{padding:55px 0}
 .summary-box{max-width:620px}
 .scene-grid{grid-template-columns:repeat(3,1fr)}
 .scene-card:nth-child(2),.scene-card:nth-child(3){margin-top:0}
 .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
 .footer-grid>div:last-child{display:none}
}
@media (max-width:768px){
 .container{width:min(var(--max),calc(100% - 34px))}
 section{padding:65px 0}
 .page-intro h1{font-size:38px}
 .lead{font-size:16px}
 .function-grid,.scene-grid{grid-template-columns:1fr}
 .function-card{min-height:auto}
 .steps-image img{height:270px}
 .guide-item{grid-template-columns:82px 1fr auto;gap:12px;padding:16px}
 .guide-item h3{font-size:15px}
 .guide-item p{font-size:12px}
 .cta-box{align-items:flex-start;flex-direction:column;padding:30px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-grid>div:last-child{display:grid}
 .fixed-inner p{font-size:12px}
 .fixed-inner strong{display:block;margin:0}
}
@media (max-width:576px){
 .nav-wrap{height:68px}
 .nav-links{top:76px;left:17px;right:17px}
 .page-intro{padding:43px 0 48px}
 .page-intro h1{font-size:32px}
 .intro-actions{flex-direction:column;align-items:stretch}
 .intro-actions a{width:100%}
 .summary-box{padding:22px}
 .filter-bar{align-items:flex-start}
 .filter-label{width:100%;margin-bottom:2px}
 .compare-note{padding:25px}
 .compare-table{font-size:13px}
 .compare-table th,.compare-table td{padding:13px 11px}
 .guide-item{grid-template-columns:1fr auto}
 .guide-date{grid-column:1/-1}
 .guide-item p{display:none}
 .faq-question{font-size:15px;padding:17px 0}
 .faq-answer{font-size:14px}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:last-child{display:grid}
 .copyright{flex-direction:column;gap:4px}
 .fixed-inner{gap:10px}
 .fixed-inner .btn-primary{padding:0 13px;min-height:44px;font-size:13px}
 body{padding-bottom:67px}
}

/* roulang page: category2 */
:root{
 --blue:#2476c8;
 --blue-dark:#15569a;
 --blue-soft:#eaf4ff;
 --sky:#d9efff;
 --coral:#f29b78;
 --coral-soft:#fff1ea;
 --ink:#17324d;
 --muted:#61758a;
 --line:#dce8f2;
 --paper:#fff;
 --mist:#f5f9fc;
 --shadow:0 16px 40px rgba(27,75,116,.10);
 --shadow-soft:0 8px 24px rgba(27,75,116,.07);
 --radius:18px;
 --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;color:var(--ink);background:var(--paper);
 font-family:"Noto Sans CJK SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
 font-size:16px;line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(36,118,200,.35);outline-offset:3px}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.site-header{
 position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);
 border-bottom:1px solid var(--line);backdrop-filter:blur(14px);
}
.nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{
 width:36px;height:36px;border-radius:12px 12px 12px 5px;
 background:linear-gradient(145deg,#64bdf1,#2476c8);position:relative;
 box-shadow:0 6px 12px rgba(36,118,200,.2)
}
.brand-mark:after{
 content:"";position:absolute;width:10px;height:10px;background:#fff;border-radius:50%;
 right:8px;top:8px;box-shadow:-10px 10px 0 -2px #fff
}
.nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav-links a{
 padding:10px 15px;border-radius:10px;color:#536c83;font-size:14px;
 font-weight:600;transition:.2s
}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue-soft)}
.nav-cta,.btn-primary{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
 padding:0 20px;border-radius:11px;border:1px solid var(--blue);
 color:#fff;background:var(--blue);font-weight:700;font-size:14px;
 box-shadow:0 7px 16px rgba(36,118,200,.18);transition:.22s
}
.nav-cta:hover,.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px)}
.btn-secondary{
 display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;
 border:1px solid #a9cce8;border-radius:11px;color:var(--blue-dark);
 background:#fff;font-weight:700;transition:.22s
}
.btn-secondary:hover{background:var(--blue-soft);border-color:var(--blue)}
.nav-toggle{display:none;border:0;background:none;color:var(--ink);font-size:26px}
.page-intro{
 position:relative;overflow:hidden;background:var(--mist);
 padding:82px 0 76px;border-bottom:1px solid var(--line)
}
.page-intro:after{
 content:"";position:absolute;width:430px;height:430px;border-radius:50%;
 right:-120px;top:-180px;background:rgba(217,239,255,.7)
}
.intro-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}
.breadcrumb{display:flex;gap:9px;color:var(--muted);font-size:13px;margin-bottom:22px}
.breadcrumb a:hover{color:var(--blue)}
.eyebrow,.section-kicker{
 display:inline-flex;align-items:center;gap:8px;color:var(--blue);
 font-size:13px;font-weight:800;letter-spacing:.08em
}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:currentColor}
.page-intro h1{
 font-size:clamp(32px,4vw,54px);line-height:1.18;letter-spacing:-.04em;margin:13px 0 20px
}
.intro-copy{color:var(--muted);font-size:17px;max-width:680px;margin:0 0 27px}
.intro-meta{display:flex;flex-wrap:wrap;gap:10px}
.meta-pill,.tag{
 display:inline-flex;align-items:center;padding:6px 11px;border-radius:20px;
 background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:800
}
.intro-panel{
 background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;
 box-shadow:var(--shadow);position:relative
}
.intro-panel img{height:210px;width:100%;object-fit:cover;border-radius:15px;margin-bottom:18px}
.panel-line{display:flex;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.panel-line:last-child{border-bottom:0;padding-bottom:0}
.panel-line span{color:var(--muted)}
section{padding:86px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3.2vw,40px);line-height:1.25;letter-spacing:-.03em;margin:11px 0 14px}
.section-head p{color:var(--muted);margin:0}
.topic-strip{background:#fff;border-bottom:1px solid var(--line);padding:22px 0}
.topic-list{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.topic-list a{
 padding:9px 16px;border:1px solid var(--line);border-radius:24px;color:var(--muted);
 font-size:14px;font-weight:700;background:#fff;transition:.2s
}
.topic-list a:hover,.topic-list a.active{border-color:#9cc9e9;color:var(--blue-dark);background:var(--blue-soft)}
.guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:34px;align-items:start}
.guide-list{display:grid;gap:15px}
.guide-item{
 display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;
 padding:22px 24px;border:1px solid var(--line);border-radius:16px;background:#fff;
 box-shadow:var(--shadow-soft);transition:.22s
}
.guide-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.guide-date{color:var(--blue);font-weight:800;font-size:14px}
.guide-item h3{margin:4px 0 5px;font-size:19px}
.guide-item p{margin:0;color:var(--muted);font-size:14px}
.guide-arrow{font-size:22px;color:var(--blue);transition:.2s}
.guide-item:hover .guide-arrow{transform:translateX(4px)}
.aside-card{
 padding:24px;border-radius:18px;background:var(--blue-soft);border:1px solid #cfe6f7;
 position:sticky;top:100px
}
.aside-card h3{font-size:20px;margin:0 0 13px}
.aside-card p{color:#4f6c84;font-size:14px;margin:0 0 18px}
.aside-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.aside-list li{display:flex;gap:9px;color:#405d75;font-size:14px}
.aside-list li:before{content:"✓";color:var(--blue);font-weight:800}
.timeline-section{background:var(--mist)}
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:30px}
.timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:#bcdcf2}
.timeline-item{position:relative;display:grid;grid-template-columns:125px 1fr;gap:28px;padding:0 0 34px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item:before{
 content:"";position:absolute;left:-29px;top:7px;width:12px;height:12px;border-radius:50%;
 background:var(--blue);border:4px solid #d9efff;box-sizing:content-box
}
.timeline-date{color:var(--blue-dark);font-size:14px;font-weight:800}
.timeline-content{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 23px;box-shadow:var(--shadow-soft)}
.timeline-content h3{margin:0 0 6px;font-size:19px}
.timeline-content p{margin:0;color:var(--muted);font-size:14px}
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-card{display:grid;grid-template-columns:92px 1fr;gap:20px;padding:23px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow-soft)}
.scene-card img{width:92px;height:92px;object-fit:cover;border-radius:14px}
.scene-card h3{margin:0 0 7px;font-size:19px}
.scene-card p{margin:0;color:var(--muted);font-size:14px}
.scene-step{color:var(--coral);font-size:12px;font-weight:800;margin-bottom:4px}
.check-section{background:#fff}
.check-table{display:grid;grid-template-columns:1fr 1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-soft)}
.check-cell{padding:20px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.check-cell:nth-child(3n){border-right:0}
.check-cell:nth-last-child(-n+3){border-bottom:0}
.check-cell strong{display:block;margin-bottom:6px;font-size:16px}
.check-cell span{color:var(--muted);font-size:14px}
.check-label{display:inline-block;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:8px}
.notice{
 display:flex;gap:18px;align-items:flex-start;padding:24px 27px;border:1px solid #f2d3c5;
 background:var(--coral-soft);border-radius:18px
}
.notice-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#fff;color:#d86d49;font-weight:900;flex:none}
.notice h3{margin:0 0 5px;font-size:19px}
.notice p{margin:0;color:#6e5b55;font-size:14px}
.cta-band{padding:54px 0;background:var(--blue-soft)}
.cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-box h2{margin:0 0 7px;font-size:30px;line-height:1.3}
.cta-box p{margin:0;color:var(--muted)}
.site-footer{padding:66px 0 25px;background:#17324d;color:#d9e8f3}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{color:#fff}
.footer-text{max-width:300px;color:#aec4d5;font-size:14px;margin:17px 0 0}
.footer-col{display:grid;align-content:start;gap:9px}
.footer-col h3{font-size:15px;color:#fff;margin:0 0 6px}
.footer-col a{color:#aec4d5;font-size:14px;transition:.2s}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);margin-top:45px;padding-top:20px;color:#91adbf;font-size:13px}
.empty-state{padding:26px;border:1px dashed #b9d3e5;border-radius:16px;color:var(--muted);text-align:center;background:#fbfdff}
.disabled{opacity:.5;pointer-events:none}
@media(max-width:1200px){
 .nav-wrap{gap:18px}.nav-links a{padding:9px 10px}.intro-grid{gap:40px}
}
@media(max-width:992px){
 .nav-cta{display:none}.intro-grid{grid-template-columns:1fr}.intro-panel{max-width:560px}
 .guide-layout{grid-template-columns:1fr}.aside-card{position:static}
 .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
}
@media(max-width:768px){
 .container{width:min(var(--max),calc(100% - 34px))}
 .nav-wrap{height:68px}.nav-toggle{display:block;margin-left:auto}
 .nav-links{
  display:none;position:absolute;left:17px;right:17px;top:76px;padding:10px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
  flex-direction:column;align-items:stretch
 }
 .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
 .page-intro{padding:58px 0 54px}.page-intro h1{font-size:38px}
 section{padding:62px 0}.guide-item{grid-template-columns:82px 1fr auto;gap:13px;padding:18px}
 .scene-grid{grid-template-columns:1fr}.check-table{grid-template-columns:1fr}
 .check-cell,.check-cell:nth-child(3n),.check-cell:nth-last-child(-n+3){border-right:0;border-bottom:1px solid var(--line)}
 .check-cell:last-child{border-bottom:0}.cta-box{align-items:flex-start;flex-direction:column}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.copyright{flex-direction:column;gap:5px}
}
@media(max-width:576px){
 .brand{font-size:18px}.brand-mark{width:32px;height:32px}
 .intro-grid{gap:28px}.page-intro h1{font-size:32px}.intro-copy{font-size:16px}
 .guide-item{grid-template-columns:1fr auto}.guide-date{grid-column:1/-1}
 .guide-item p{font-size:13px}.scene-card{grid-template-columns:1fr}.scene-card img{width:100%;height:150px}
 .footer-grid{grid-template-columns:1fr}.footer-col{gap:7px}.cta-box h2{font-size:26px}
}