/* roulang page: index */
:root{
            --ink:#24172d;
            --ink-deep:#17121d;
            --surface:#fbf8f5;
            --surface-2:#f1ebef;
            --paper:#fffdfb;
            --accent:#f26b4f;
            --accent-dark:#d84d37;
            --accent-soft:#ffe3d8;
            --yellow:#f6dc88;
            --muted:#766d78;
            --line:#e5dce2;
            --white:#fff;
            --radius-sm:10px;
            --radius-md:18px;
            --radius-lg:28px;
            --shadow-soft:0 12px 35px rgba(36,23,45,.08);
            --shadow-panel:0 22px 60px rgba(28,17,35,.16);
            --container-width:1180px;
            --section-gap:92px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--surface);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}
        a{color:inherit;text-decoration:none;transition:all .2s ease}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        .container{max-width:var(--container-width);padding-left:22px;padding-right:22px}
        .topline{background:var(--ink-deep);color:#fff;padding:11px 0;font-size:13px}
        .topline-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
        .brand{font-size:21px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
        .brand em{font-style:normal;color:var(--accent)}
        .status{display:inline-flex;align-items:center;gap:7px;color:#d8cedb}
        .status-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 4px rgba(242,107,79,.16)}
        .mainnav{position:sticky;top:0;z-index:20;background:rgba(255,253,251,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
        .nav-inner{min-height:64px;display:flex;align-items:center;gap:28px}
        .nav-links{display:flex;align-items:center;gap:7px;flex:1}
        .nav-link{font-size:14px;font-weight:700;color:var(--muted);padding:9px 14px;border-radius:8px;position:relative}
        .nav-link:hover,.nav-link:focus{color:var(--ink);background:var(--surface-2)}
        .nav-link.active{color:var(--ink)}
        .nav-link.active:after{content:"";height:3px;background:var(--accent);position:absolute;left:14px;right:14px;bottom:0;border-radius:3px}
        .searchbox{width:205px;display:flex;align-items:center;border:1px solid var(--line);background:var(--paper);border-radius:30px;padding:3px 5px 3px 14px}
        .searchbox input{border:0;outline:0;background:transparent;width:100%;font-size:13px;color:var(--ink)}
        .searchbox button{width:33px;height:33px;border:0;background:var(--ink);color:#fff;border-radius:50%;font-size:14px}
        .hero{padding:76px 0 72px;background:var(--ink);color:#fff;position:relative;overflow:hidden}
        .hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(246,220,136,.16);border-radius:50%;right:-180px;top:-200px}
        .hero:after{content:"";position:absolute;width:280px;height:280px;background:var(--accent);opacity:.12;transform:rotate(25deg);right:9%;bottom:-190px}
        .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--yellow);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:28px;height:2px;background:var(--accent)}
        h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:-.06em;margin:18px 0 22px;font-weight:900}
        .hero-copy{color:#d8cedb;font-size:17px;max-width:650px;margin-bottom:30px}
        .btn-main,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent}
        .btn-main{background:var(--accent);color:#fff}
        .btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
        .btn-ghost{border-color:#716477;color:#fff;margin-left:10px}
        .btn-ghost:hover{border-color:var(--yellow);color:var(--yellow)}
        .hero-points{display:flex;gap:25px;flex-wrap:wrap;margin-top:31px}
        .hero-point strong{display:block;font-size:24px;color:var(--yellow);line-height:1.2}
        .hero-point span{font-size:12px;color:#b9acbc}
        .index-panel{background:#2c2034;border:1px solid #49384e;border-radius:var(--radius-md);padding:23px;box-shadow:var(--shadow-panel)}
        .panel-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #49384e;padding-bottom:17px;margin-bottom:16px}
        .panel-head strong{font-size:15px}
        .panel-code{color:var(--accent);font-size:12px;font-weight:900}
        .panel-row{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}
        .panel-num{font-size:12px;color:var(--yellow);width:25px}
        .panel-row b{font-size:14px;display:block}
        .panel-row small{color:#b9acbc;font-size:12px}
        .bar{height:5px;background:#44344b;border-radius:8px;margin-top:8px;overflow:hidden}
        .bar i{display:block;height:100%;background:var(--accent);border-radius:8px}
        section{padding:var(--section-gap) 0}
        .section-kicker{color:var(--accent-dark);font-size:12px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}
        h2{font-size:clamp(28px,3.5vw,44px);line-height:1.2;letter-spacing:-.045em;margin:10px 0 15px;font-weight:900}
        .section-intro{color:var(--muted);max-width:690px;margin:0}
        .section-head{margin-bottom:38px}
        .pain{background:var(--surface-2)}
        .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
        .timeline-item{padding:28px 28px 8px 0;border-right:1px solid var(--line);margin-right:28px;position:relative}
        .timeline-item:last-child{border:0;margin-right:0}
        .timeline-item:before{content:"";position:absolute;top:-5px;left:0;width:10px;height:10px;background:var(--accent);border-radius:50%}
        .timeline-num{color:var(--accent-dark);font-weight:900;font-size:13px}
        .timeline h3{font-size:21px;margin:12px 0 8px}
        .timeline p{color:var(--muted);font-size:14px;margin:0}
        .solution-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:55px;align-items:start}
        .channel-list{border-left:2px solid var(--line);padding-left:25px}
        .channel{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
        .channel:last-child{border-bottom:0}
        .channel-index{color:var(--accent);font-weight:900;font-size:18px}
        .channel h3{font-size:18px;margin:0 0 4px}
        .channel p{font-size:13px;color:var(--muted);margin:0}
        .feature-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .feature-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;min-height:175px;transition:.22s}
        .feature-card:nth-child(2){transform:translateY(22px);background:var(--ink);color:#fff;border-color:var(--ink)}
        .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft);border-color:var(--accent)}
        .feature-card:nth-child(2):hover{transform:translateY(17px)}
        .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:var(--accent-soft);color:var(--accent-dark);font-size:11px;font-weight:900}
        .feature-card:nth-child(2) .tag{background:#49384e;color:var(--yellow)}
        .feature-card h3{font-size:18px;margin:18px 0 8px}
        .feature-card p{font-size:13px;color:var(--muted);margin:0}
        .feature-card:nth-child(2) p{color:#c8bdca}
        .metrics{background:var(--ink-deep);color:#fff;padding:68px 0}
        .metrics-grid{display:grid;grid-template-columns:1.1fr 1.9fr;gap:70px;align-items:center}
        .metrics h2{color:#fff}
        .metrics p{color:#b9acbc}
        .metric-list{display:grid;grid-template-columns:repeat(2,1fr);gap:25px 40px}
        .metric strong{font-size:39px;color:var(--yellow);display:block;line-height:1}
        .metric span{font-size:13px;color:#c8bdca;display:block;margin:8px 0 10px}
        .metric .bar{height:7px}
        .metric .bar i{background:var(--accent)}
        .steps{background:var(--surface-2)}
        .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
        .step{background:var(--paper);padding:24px 20px;border-radius:var(--radius-sm);border-top:3px solid var(--line)}
        .step.active{border-color:var(--accent)}
        .step-number{font-size:30px;font-weight:900;color:var(--accent);line-height:1}
        .step h3{font-size:17px;margin:17px 0 7px}
        .step p{font-size:13px;color:var(--muted);margin:0}
        .quote-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:center}
        .quote-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-soft);position:relative}
        .quote-card:before{content:"“";font-size:70px;line-height:1;color:var(--accent);position:absolute;top:10px;right:25px}
        .quote-card p{font-size:20px;font-weight:700;line-height:1.55;margin:0 0 22px;max-width:560px}
        .quote-meta{font-size:13px;color:var(--muted)}
        .quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .mini-quote{padding:20px;border-left:3px solid var(--accent);background:var(--surface-2);font-size:14px}
        .mini-quote b{display:block;font-size:12px;color:var(--accent-dark);margin-top:12px}
        .faq{background:var(--surface-2)}
        .faq-grid{display:grid;grid-template-columns:.6fr 1.4fr;gap:70px}
        .faq-index{position:sticky;top:105px;height:max-content}
        .faq-index p{color:var(--muted);font-size:14px}
        .accordion-item{background:var(--paper);border:1px solid var(--line)!important;border-radius:var(--radius-sm)!important;margin-bottom:12px;overflow:hidden}
        .accordion-button{font-weight:800;color:var(--ink);background:var(--paper);padding:20px 22px;box-shadow:none!important}
        .accordion-button:not(.collapsed){color:var(--ink);background:var(--accent-soft)}
        .accordion-button:focus{box-shadow:0 0 0 3px rgba(242,107,79,.25)!important}
        .accordion-body{color:var(--muted);font-size:14px;padding:0 22px 21px;background:var(--accent-soft)}
        .cta{padding:55px 0;background:var(--accent);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin:0 0 8px;color:#fff}
        .cta p{margin:0;color:#ffece5}
        .cta .btn-main{background:var(--ink);color:#fff}
        .cta .btn-main:hover{background:#392640}
        footer{background:var(--ink-deep);color:#fff;padding:54px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px}
        footer .brand{display:block;margin-bottom:14px}
        footer p,footer a{color:#b9acbc;font-size:13px}
        footer a:hover{color:var(--yellow)}
        footer h3{font-size:14px;color:#fff;margin:3px 0 15px}
        .footer-links{display:flex;flex-direction:column;gap:7px}
        .copyright{border-top:1px solid #392b40;padding-top:18px;color:#8f8192;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
        :focus-visible{outline:3px solid rgba(246,220,136,.8);outline-offset:3px}
        @media(max-width:991px){
            .hero-grid,.solution-grid,.metrics-grid,.quote-wrap,.faq-grid{grid-template-columns:1fr;gap:35px}
            .metrics-grid{gap:45px}.faq-index{position:static}.step-grid{grid-template-columns:repeat(2,1fr)}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:767px){
            :root{--section-gap:62px}
            .topline-inner{align-items:flex-start}.status{display:none}.brand{font-size:18px}
            .nav-inner{gap:10px;overflow:hidden}.nav-links{overflow-x:auto;white-space:nowrap;scrollbar-width:none}.nav-link{padding:9px 10px;font-size:13px}
            .searchbox{width:42px;padding:3px}.searchbox input{display:none}.searchbox button{margin:auto}
            .hero{padding:55px 0 58px}h1{font-size:42px}.hero-copy{font-size:15px}
            .btn-main,.btn-ghost{width:100%;margin:0 0 10px}.hero-points{gap:18px}
            .timeline,.feature-stack,.metric-list,.quote-grid{grid-template-columns:1fr}
            .timeline-item{border-right:0;border-bottom:1px solid var(--line);margin:0;padding-right:0;padding-bottom:22px}
            .feature-card:nth-child(2){transform:none}.feature-card:nth-child(2):hover{transform:translateY(-4px)}
            .step-grid{grid-template-columns:1fr 1fr;gap:10px}.step{padding:18px 14px}
            .cta-inner{display:block}.cta .btn-main{margin-top:23px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
        }
        @media(max-width:430px){.step-grid,.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}

/* roulang page: category1 */
:root{--ink:#24172d;--ink-deep:#17121d;--surface:#fbf8f5;--surface-2:#f1ebef;--paper:#fffdfb;--accent:#f26b4f;--accent-dark:#d84d37;--accent-soft:#ffe3d8;--yellow:#f6dc88;--muted:#766d78;--line:#e5dce2;--white:#fff;--radius-sm:10px;--radius-md:18px;--radius-lg:28px;--shadow-soft:0 12px 35px rgba(36,23,45,.08);--shadow-panel:0 22px 60px rgba(28,17,35,.16);--container-width:1180px;--section-gap:74px}
    *,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--surface);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none;transition:all .2s ease}a:hover{color:var(--accent-dark)}img{max-width:100%;display:block}button,input{font:inherit}.container{max-width:var(--container-width);padding-left:22px;padding-right:22px}.topline{background:var(--ink-deep);color:#fff}.topline-inner{height:58px;display:flex;align-items:center;justify-content:space-between}.brand{font-size:21px;font-weight:900;letter-spacing:-.05em;white-space:nowrap;color:inherit}.brand span{color:var(--accent)}.status{color:#cfc4d1;font-size:12px}.status-dot{display:inline-block;width:7px;height:7px;background:var(--yellow);border-radius:50%;margin-right:7px}.mainnav{position:sticky;top:0;z-index:20;background:rgba(255,253,251,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-inner{min-height:64px;display:flex;align-items:center;gap:28px}.nav-links{display:flex;align-items:center;gap:7px;flex:1}.nav-link{font-size:14px;font-weight:700;color:var(--muted);padding:9px 14px;border-radius:8px;position:relative}.nav-link:hover,.nav-link:focus{color:var(--ink);background:var(--surface-2)}.nav-link.active{color:var(--ink)}.nav-link.active:after{content:"";height:3px;background:var(--accent);position:absolute;left:14px;right:14px;bottom:0;border-radius:3px}.searchbox{width:205px;display:flex;align-items:center;border:1px solid var(--line);background:var(--paper);border-radius:30px;padding:3px 5px 3px 14px}.searchbox:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.searchbox input{border:0;outline:0;background:transparent;width:100%;font-size:13px;color:var(--ink)}.searchbox button{width:33px;height:33px;border:0;background:var(--ink);color:#fff;border-radius:50%;font-size:14px}.searchbox button:hover{background:var(--accent)}.page-hero{padding:72px 0 68px;background:var(--ink);color:#fff;position:relative;overflow:hidden}.page-hero:after{content:"01";position:absolute;right:8%;bottom:-45px;color:rgba(246,220,136,.12);font-size:190px;font-weight:900;line-height:1}.hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.25fr .75fr;gap:50px;align-items:end}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--yellow);font-size:12px;font-weight:900;letter-spacing:.12em}.eyebrow:before{content:"";width:27px;height:2px;background:var(--accent)}h1{font-size:clamp(34px,5vw,62px);line-height:1.15;letter-spacing:-.06em;margin:18px 0 20px;font-weight:900}.hero-copy{max-width:650px;color:#d8cedb;font-size:16px;margin:0}.index-panel{background:#302238;border:1px solid #58465d;border-radius:var(--radius-md);padding:24px}.panel-title{font-size:12px;color:var(--yellow);font-weight:800;letter-spacing:.1em}.panel-row{display:flex;align-items:center;gap:13px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.1)}.panel-row:last-child{border-bottom:0}.panel-no{font-size:12px;color:var(--accent);font-weight:900}.panel-row b{font-size:14px;display:block}.panel-row small{color:#b9acbc;font-size:12px}.btn-main,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent}.btn-main{background:var(--accent);color:#fff}.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}.btn-ghost{border-color:#716477;color:#fff;margin-left:10px}.btn-ghost:hover{border-color:var(--yellow);color:var(--yellow)}section{padding:var(--section-gap) 0}.section-kicker{color:var(--accent-dark);font-size:12px;font-weight:900;letter-spacing:.14em}.section-head{margin-bottom:32px}.section-head h2{font-size:clamp(26px,3vw,40px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 10px}.section-intro{color:var(--muted);max-width:680px;margin:0}.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}.tag{display:inline-flex;padding:5px 11px;border-radius:5px;background:var(--accent-soft);color:var(--accent-dark);font-size:12px;font-weight:900}.tag:hover{background:var(--accent);color:#fff}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:34px}.lead-card{display:grid;grid-template-columns:42% 58%;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-soft);margin-bottom:18px}.cover{min-height:285px;background:linear-gradient(135deg,#37243f 0%,#24172d 62%,#f26b4f 63%,#f6dc88 100%);position:relative;padding:22px;color:#fff}.cover:before{content:"";position:absolute;inset:25px;border:1px solid rgba(255,255,255,.28);transform:skewY(-8deg)}.cover-label{position:relative;z-index:1;font-size:12px;color:var(--yellow);font-weight:900}.cover-number{position:absolute;z-index:1;bottom:12px;left:22px;font-size:82px;font-weight:900;line-height:1;color:rgba(255,255,255,.18)}.lead-content{padding:30px}.lead-content h3{font-size:27px;line-height:1.35;margin:12px 0}.lead-content p{color:var(--muted);font-size:14px}.read-link{font-size:13px;font-weight:900;color:var(--accent-dark)}.guide-list{display:grid;gap:12px}.guide-item{display:grid;grid-template-columns:62px 1fr auto;align-items:center;gap:18px;padding:20px 22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);transition:.22s}.guide-item:hover{transform:translateX(4px);border-color:var(--accent);box-shadow:var(--shadow-soft)}.guide-no{font-size:27px;font-weight:900;color:var(--accent)}.guide-item h3{font-size:17px;margin:0 0 4px}.guide-item p{margin:0;color:var(--muted);font-size:13px}.guide-meta{font-size:11px;color:var(--muted);white-space:nowrap}.side-stack{display:grid;gap:17px}.side-card{background:var(--ink);color:#fff;border-radius:var(--radius-md);padding:23px}.side-card.light{background:var(--paper);color:var(--ink);border:1px solid var(--line)}.side-card h3{font-size:16px;margin:0 0 16px}.side-card ul{list-style:none;padding:0;margin:0}.side-card li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:13px}.side-card.light li{border-color:var(--line)}.side-card li:last-child{border-bottom:0}.side-card li span{float:right;color:var(--yellow);font-size:11px}.side-card.light li span{color:var(--accent-dark)}.route{background:var(--surface-2)}.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.route-card{padding:25px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);position:relative}.route-card:before{content:"";display:block;width:34px;height:4px;background:var(--accent);margin-bottom:20px}.route-card:nth-child(2){transform:translateY(18px)}.route-card h3{font-size:18px;margin:0 0 8px}.route-card p{font-size:13px;color:var(--muted);margin:0}.faq-grid{display:grid;grid-template-columns:.55fr 1.45fr;gap:65px}.faq-index{position:sticky;top:105px;height:max-content}.faq-index p{color:var(--muted);font-size:14px}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden;background:var(--paper)}.accordion-button{font-weight:800;color:var(--ink);background:var(--paper);padding:19px 20px;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--accent-dark);background:var(--accent-soft)}.accordion-button:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,107,79,.18)!important}.accordion-body{font-size:14px;color:var(--muted);padding:0 20px 20px}.cta{padding:55px 0;background:var(--ink-deep);color:#fff}.cta-box{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:30px;margin:0 0 8px}.cta p{color:#c8bdca;margin:0}.footer{background:var(--ink-deep);color:#fff;padding:62px 0 22px;border-top:1px solid #3b2c42}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr .8fr;gap:35px}.footer p{color:#b9acbc;font-size:13px;max-width:280px;margin-top:15px}.footer h3{font-size:13px;color:var(--yellow);margin:3px 0 14px}.footer-links{display:grid;gap:8px;color:#c8bdca;font-size:13px}.footer-links a:hover{color:var(--accent)}.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.1);margin-top:45px;padding-top:19px;color:#988b9d;font-size:11px}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
    @media(max-width:991px){.hero-layout,.content-layout,.faq-grid{grid-template-columns:1fr}.index-panel{max-width:520px}.side-stack{grid-template-columns:1fr 1fr}.faq-index{position:static}.footer-grid{grid-template-columns:1fr 1fr}.route-grid{grid-template-columns:1fr 1fr}.route-card:nth-child(2){transform:none}}
    @media(max-width:767px){.topline-inner{height:52px}.status{display:none}.nav-inner{gap:10px;overflow:hidden}.nav-links{overflow-x:auto;flex-wrap:nowrap;white-space:nowrap;scrollbar-width:none}.nav-link{padding:8px 10px;font-size:13px}.nav-link.active:after{left:10px;right:10px}.searchbox{width:42px;flex:0 0 42px;padding:3px}.searchbox input{display:none}.searchbox button{width:34px;height:34px}.page-hero{padding:54px 0}.hero-layout{gap:30px}.hero-copy{font-size:15px}.lead-card{display:block}.cover{min-height:190px}.lead-content{padding:24px}.guide-item{grid-template-columns:43px 1fr;gap:12px;padding:17px}.guide-meta{grid-column:2}.side-stack,.route-grid{grid-template-columns:1fr}.cta-box{display:block}.cta .btn-main{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}section{padding:58px 0}}

/* roulang page: category2 */
:root{
      --ink:#24172d;--ink-deep:#17121d;--surface:#fbf8f5;--surface-2:#f1ebef;
      --paper:#fffdfb;--accent:#f26b4f;--accent-dark:#d84d37;--accent-soft:#ffe3d8;
      --yellow:#f6dc88;--muted:#766d78;--line:#e5dce2;--white:#fff;
      --radius-sm:10px;--radius-md:18px;--radius-lg:28px;
      --shadow-soft:0 12px 35px rgba(36,23,45,.08);--shadow-panel:0 22px 60px rgba(28,17,35,.16);
      --container-width:1180px;--section-gap:74px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--surface);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:all .2s ease}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    .container{max-width:var(--container-width);padding-left:22px;padding-right:22px}
    .topline{background:var(--ink-deep);color:#fff}
    .topline-inner{min-height:47px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{font-size:21px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
    .brand span{color:var(--accent)}
    .status{font-size:12px;color:#c9becb}
    .status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:7px}
    .mainnav{position:sticky;top:0;z-index:20;background:rgba(255,253,251,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .nav-inner{min-height:64px;display:flex;align-items:center;gap:28px}
    .nav-links{display:flex;align-items:center;gap:7px;flex:1}
    .nav-link{font-size:14px;font-weight:700;color:var(--muted);padding:9px 14px;border-radius:8px;position:relative}
    .nav-link:hover,.nav-link:focus{color:var(--ink);background:var(--surface-2)}
    .nav-link.active{color:var(--ink)}
    .nav-link.active:after{content:"";height:3px;background:var(--accent);position:absolute;left:14px;right:14px;bottom:0;border-radius:3px}
    .searchbox{width:205px;display:flex;align-items:center;border:1px solid var(--line);background:var(--paper);border-radius:30px;padding:3px 5px 3px 14px}
    .searchbox:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
    .searchbox input{border:0;outline:0;background:transparent;width:100%;font-size:13px;color:var(--ink)}
    .searchbox button{width:33px;height:33px;border:0;background:var(--ink);color:#fff;border-radius:50%;font-size:14px}
    .searchbox button:hover{background:var(--accent)}
    .topic-hero{padding:62px 0 58px;background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .topic-hero:before{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(246,220,136,.2);border-radius:50%;right:-130px;top:-260px}
    .topic-hero:after{content:"";position:absolute;width:320px;height:180px;background:var(--accent);opacity:.12;transform:skewX(-28deg);right:15%;bottom:-120px}
    .hero-inner{position:relative;z-index:1}
    .eyebrow,.section-kicker{font-size:12px;font-weight:900;letter-spacing:.14em;color:var(--accent-dark)}
    .topic-hero .eyebrow{color:var(--yellow)}
    .topic-hero h1{font-size:clamp(34px,5vw,62px);line-height:1.16;letter-spacing:-.06em;margin:16px 0 18px;max-width:780px}
    .hero-summary{max-width:720px;color:#d9cedd;font-size:17px;margin:0}
    .hero-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
    .hero-tag,.tag{display:inline-flex;align-items:center;padding:6px 11px;border-radius:6px;font-size:12px;font-weight:800}
    .hero-tag{background:#49384e;color:var(--yellow);border:1px solid rgba(246,220,136,.2)}
    .tag{background:var(--accent-soft);color:var(--accent-dark)}
    .topic-section{padding:var(--section-gap) 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    h2{font-size:clamp(25px,3vw,38px);line-height:1.3;letter-spacing:-.04em;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:620px;margin:0}
    .matrix{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
    .matrix a{min-height:76px;padding:15px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);display:flex;flex-direction:column;justify-content:space-between}
    .matrix a:nth-child(3n){background:var(--accent-soft)}
    .matrix a:hover,.matrix a:focus{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-soft)}
    .matrix b{font-size:15px}.matrix small{color:var(--muted);font-size:11px}
    .directory{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start}
    .feature-topic{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:34px;position:relative;overflow:hidden;min-height:260px;box-shadow:var(--shadow-panel)}
    .feature-topic:after{content:"01";position:absolute;right:24px;bottom:-24px;font-size:150px;line-height:1;font-weight:900;color:rgba(255,255,255,.06)}
    .feature-topic h3{font-size:28px;max-width:560px;margin:25px 0 12px;position:relative;z-index:1}
    .feature-topic p{color:#c9bdca;max-width:600px;position:relative;z-index:1}
    .text-link{color:var(--accent);font-weight:800;font-size:14px}
    .text-link:hover{color:var(--accent-dark)}
    .track{margin-top:18px;border-top:1px solid var(--line)}
    .track-item{display:grid;grid-template-columns:58px 105px 1fr auto;gap:18px;align-items:center;padding:21px 8px;border-bottom:1px solid var(--line)}
    .track-item:hover{background:var(--paper);padding-left:14px;padding-right:14px}
    .track-no{font-size:25px;font-weight:900;color:var(--accent)}
    .track-title{font-weight:800;font-size:16px}
    .track-desc{font-size:13px;color:var(--muted);margin-top:3px}
    .track-date{font-size:12px;color:var(--muted);white-space:nowrap}
    .side-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:23px;box-shadow:var(--shadow-soft)}
    .side-panel.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
    .side-panel h3{font-size:18px;margin:0 0 18px}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;display:flex;justify-content:space-between;gap:12px}
    .dark .side-list li{border-color:rgba(255,255,255,.12)}
    .side-list li:last-child{border-bottom:0}
    .side-list span{color:var(--muted)}.dark .side-list span{color:#bcaebe}
    .update-board{background:var(--surface-2);padding:var(--section-gap) 0}
    .board-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .update-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:27px}
    .update-card h3{font-size:21px;margin:15px 0 8px}
    .update-card p{font-size:14px;color:var(--muted);margin:0}
    .progress-line{height:8px;background:#e8dfe4;border-radius:10px;overflow:hidden;margin:22px 0 10px}
    .progress-line span{display:block;height:100%;background:var(--accent);border-radius:inherit}
    .metrics{display:flex;gap:32px;margin-top:22px}.metric strong{display:block;font-size:29px;line-height:1;color:var(--ink)}.metric small{color:var(--muted);font-size:12px}
    .faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px}
    .faq-note{color:var(--muted);font-size:14px}
    .accordion-item{border:1px solid var(--line)!important;border-radius:var(--radius-sm)!important;margin-bottom:11px;overflow:hidden;background:var(--paper)}
    .accordion-button{background:var(--paper);color:var(--ink);font-weight:800;padding:18px 20px;box-shadow:none!important}
    .accordion-button:not(.collapsed){background:var(--accent-soft);color:var(--ink)}
    .accordion-button:focus{box-shadow:0 0 0 3px rgba(242,107,79,.2)!important}
    .accordion-body{font-size:14px;color:var(--muted);padding:0 20px 20px;background:var(--accent-soft)}
    .cta{padding:60px 0;background:var(--ink-deep);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{margin:0 0 10px}.cta p{color:#c7bac9;margin:0;max-width:650px}
    .btn-main{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;background:var(--accent);color:#fff}
    .btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
    .btn-main:focus{outline:3px solid rgba(246,220,136,.7);outline-offset:3px}
    footer{background:var(--ink-deep);color:#fff;border-top:1px solid rgba(255,255,255,.1);padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    footer p{color:#bcaebe;font-size:13px;max-width:280px;margin-top:17px}
    footer h3{font-size:14px;margin:5px 0 14px}
    .footer-links{display:grid;gap:8px;color:#bcaebe;font-size:13px}.footer-links a:hover{color:var(--yellow)}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.1);margin-top:38px;padding-top:19px;color:#9e90a3;font-size:11px}
    @media(max-width:991px){
      .directory,.board-grid{grid-template-columns:1fr}.matrix{grid-template-columns:repeat(3,1fr)}
      .faq-wrap{grid-template-columns:1fr;gap:25px}.section-head{display:block}.section-intro{margin-top:12px}
    }
    @media(max-width:767px){
      .topline-inner{min-height:42px}.status{display:none}.brand{font-size:18px}
      .nav-inner{gap:10px;overflow:hidden}.nav-links{overflow-x:auto;white-space:nowrap;flex:none;max-width:calc(100% - 48px)}
      .nav-link{font-size:12px;padding:8px 9px}.nav-link.active:after{left:9px;right:9px}
      .searchbox{width:38px;padding:3px;border-radius:50%;flex:none}.searchbox input{display:none}.searchbox button{width:30px;height:30px}
      .topic-hero{padding:45px 0}.topic-hero h1{font-size:38px}.hero-summary{font-size:15px}
      .topic-section{padding:52px 0}.matrix{grid-template-columns:repeat(2,1fr)}
      .track-item{grid-template-columns:42px 1fr;gap:5px 14px}.track-item .tag{grid-column:2;grid-row:1}.track-title{grid-column:2}.track-desc{grid-column:2}.track-date{grid-column:2}
      .feature-topic{padding:25px}.feature-topic h3{font-size:23px}
      .metrics{gap:20px;flex-wrap:wrap}.cta-inner{display:block}.cta .btn-main{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(max-width:420px){.matrix{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.track-item{padding:17px 2px}}