/* roulang page: index */
:root{
      --ink:#151718;
      --paper:#f5f6f3;
      --white:#fff;
      --muted:#666d70;
      --line:#dde1dd;
      --lime:#c7f23a;
      --coral:#ff715b;
      --soft:#e9ece7;
      --shadow:0 10px 26px rgba(21,23,24,.07);
      --radius:6px;
      --container:1240px;
      --ease:all .22s ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--paper);
      color:var(--ink);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      letter-spacing:0;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 56px));margin:0 auto}
    .site-header{
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      position:sticky;top:0;z-index:20;
    }
    .nav-wrap{min-height:78px;display:flex;align-items:center;gap:34px}
    .brand{font-weight:800;font-size:18px;line-height:1.1;max-width:240px}
    .brand span{display:block;color:var(--coral);font-size:11px;font-weight:700;letter-spacing:1px;margin-top:5px}
    .main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
    .main-nav a{font-size:14px;font-weight:700;padding:26px 0;position:relative}
    .main-nav a::after{content:"";position:absolute;height:3px;background:var(--lime);left:0;right:100%;bottom:17px;transition:var(--ease)}
    .main-nav a:hover::after,.main-nav a.active::after{right:0}
    .nav-cta,.button-primary{
      background:var(--lime);color:var(--ink);border:1px solid var(--lime);
      font-weight:800;min-height:46px;padding:10px 21px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;
      transition:var(--ease)
    }
    .nav-cta:hover,.button-primary:hover{background:var(--ink);border-color:var(--ink);color:var(--lime);transform:translateY(-2px)}
    .nav-cta:active,.button-primary:active{transform:translateY(0)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);padding:9px 12px;border-radius:4px;font-size:22px}
    .hero{
      min-height:570px;display:flex;align-items:flex-end;position:relative;overflow:hidden;
      background:#252827 url('https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1800&q=88') center/cover no-repeat;
    }
    .hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,12,12,.88) 0%,rgba(10,12,12,.62) 47%,rgba(10,12,12,.18) 100%)}
    .hero-content{position:relative;color:#fff;padding:86px 0 76px;max-width:780px}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:1.8px;font-weight:800;text-transform:uppercase}
    .eyebrow{color:var(--lime);margin-bottom:18px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,5vw,64px);line-height:1.14;letter-spacing:-1px;margin-bottom:23px;font-weight:800;max-width:760px}
    .hero-copy{font-size:18px;line-height:1.8;color:#e9ece8;max-width:700px;margin-bottom:30px}
    .hero-actions{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
    .hero .button-primary{padding:13px 24px}
    .text-link{font-weight:700;border-bottom:1px solid rgba(255,255,255,.7);padding-bottom:4px}
    .text-link:hover{color:var(--lime);border-color:var(--lime)}
    .hero-meta{display:flex;gap:30px;margin-top:46px;flex-wrap:wrap}
    .meta-item{border-left:2px solid var(--lime);padding-left:12px}
    .meta-item strong{display:block;font-size:24px;line-height:1.2;color:var(--lime)}
    .meta-item small{color:#d2d6d2}
    .section{padding:100px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:40px}
    .section-kicker{color:var(--coral);margin-bottom:11px}
    h2{font-size:38px;line-height:1.2;letter-spacing:-.5px;margin-bottom:14px;font-weight:800}
    .section-intro{color:var(--muted);max-width:650px;margin-bottom:0}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:start}
    .lead-text{font-size:21px;line-height:1.65;max-width:670px}
    .rule{height:1px;background:var(--line);margin:28px 0}
    .kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
    .kpi{background:var(--white);padding:25px 22px;min-height:138px}
    .kpi strong{display:block;font-size:40px;line-height:1;color:var(--ink);margin-bottom:13px}
    .kpi strong em{font-style:normal;color:var(--coral)}
    .kpi span{font-size:14px;color:var(--muted)}
    .news-section{background:var(--white)}
    .news-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:flex;justify-content:space-between;gap:22px;padding:19px 0;border-bottom:1px solid var(--line)}
    .news-item a{font-size:18px;font-weight:750}
    .news-item a:hover{color:#697d00}
    .news-item time{color:var(--muted);font-size:13px;white-space:nowrap}
    .feature-note{background:var(--ink);color:#fff;padding:34px;border-radius:var(--radius);min-height:250px}
    .feature-note .badge{color:var(--ink);background:var(--lime)}
    .badge{display:inline-block;padding:4px 9px;border-radius:3px;font-size:11px;font-weight:800;line-height:1.3}
    .feature-note h3{font-size:27px;line-height:1.3;margin:26px 0 13px}
    .feature-note p{color:#cfd4d0;margin-bottom:0}
    .service-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:18px}
    .service-main,.service-side{border:1px solid var(--line);background:var(--white);padding:34px;transition:var(--ease)}
    .service-main{min-height:285px;background:var(--ink);color:#fff}
    .service-main:hover,.service-side:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .service-main h3,.service-side h3{font-size:25px;line-height:1.3;margin:34px 0 12px}
    .service-main p,.service-side p{color:var(--muted)}
    .service-main p{color:#ccd1cc}
    .service-side-wrap{display:grid;gap:18px}
    .service-side{min-height:133px;padding:25px}
    .service-side h3{font-size:20px;margin:10px 0 4px}
    .service-side p{margin:0;font-size:14px;line-height:1.6}
    .app-section{background:var(--ink);color:#fff}
    .app-section .section-kicker{color:var(--lime)}
    .app-section .section-intro{color:#cdd2ce}
    .path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}
    .path{border-top:2px solid var(--lime);padding:23px 0 0}
    .path-number{font-size:14px;color:var(--lime);font-weight:800}
    .path h3{font-size:22px;margin:14px 0 8px}
    .path p{color:#cdd2ce;font-size:15px}
    .faq-section{background:var(--paper)}
    .accordion{background:transparent;margin:0;border-top:1px solid var(--line)}
    .accordion-item{border-bottom:1px solid var(--line);background:transparent}
    .accordion-title{color:var(--ink);font-size:18px;font-weight:750;padding:23px 45px 23px 0;border:0;position:relative}
    .accordion-title:hover{color:#718600;background:transparent}
    .accordion-title::before{content:"+";right:4px;top:18px;font-size:25px;font-weight:400}
    .is-active>.accordion-title::before{content:"−"}
    .accordion-content{border:0;background:transparent;color:var(--muted);padding:0 48px 24px 0}
    .contact-band{background:var(--lime);padding:58px 0}
    .contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}
    .contact-band h2{margin-bottom:12px}
    .contact-band p{max-width:490px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    label{font-size:13px;font-weight:750;display:block;margin-bottom:5px}
    input,select,textarea{width:100%;border:1px solid #a5b878;background:#eff8c9;border-radius:4px;padding:11px 12px;color:var(--ink);min-height:46px}
    textarea{min-height:98px;resize:vertical}
    .field-full{grid-column:1/-1}
    .form-submit{margin-top:16px;background:var(--ink);color:var(--lime);border-color:var(--ink)}
    .form-submit:hover{background:#fff;color:var(--ink);border-color:#fff}
    .privacy-note{font-size:12px;color:#4d5a22;margin:12px 0 0}
    .site-footer{background:var(--ink);color:#fff;padding:42px 0 25px}
    .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:34px;border-bottom:1px solid #3c4140}
    .footer-brand{font-size:18px;font-weight:800;max-width:260px;line-height:1.4}
    .footer-brand small{display:block;color:#9da5a0;font-size:12px;font-weight:400;margin-top:9px}
    .footer-links{display:flex;gap:24px;color:#cbd0cc;font-size:14px}
    .footer-links a:hover{color:var(--lime)}
    .copyright{display:flex;justify-content:space-between;gap:20px;color:#8f9892;font-size:12px;padding-top:20px}
    .copyright a{color:#c7f23a}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    @media(max-width:1024px){
      .container{width:min(var(--container),calc(100% - 42px))}
      .nav-wrap{gap:20px}.main-nav{gap:18px}
      .intro-grid,.news-grid{gap:35px}
      .section{padding:78px 0}
    }
    @media(max-width:768px){
      .nav-wrap{min-height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 21px 20px;flex-direction:column;align-items:stretch;gap:0}
      .main-nav.is-open{display:flex}
      .main-nav a{padding:14px 0}.main-nav a::after{bottom:7px}
      .nav-cta{text-align:center;margin-top:8px}
      .hero{min-height:590px}.hero-content{padding:65px 0 55px}
      h1{font-size:42px}.hero-copy{font-size:16px}
      .section{padding:65px 0}.section-head{display:block;margin-bottom:28px}h2{font-size:32px}
      .intro-grid,.news-grid,.service-grid,.contact-grid{grid-template-columns:1fr}
      .path-grid{grid-template-columns:1fr;gap:28px}
      .contact-grid{gap:32px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}
      .brand{font-size:15px;max-width:190px}.brand span{font-size:9px}
      .hero{min-height:620px}.hero-content{padding:55px 0 44px}
      h1{font-size:36px;letter-spacing:-.5px}.hero-meta{gap:18px;margin-top:34px}
      .meta-item strong{font-size:21px}.section{padding:54px 0}
      .kpi-grid{grid-template-columns:1fr 1fr}.kpi{padding:20px 14px;min-height:120px}.kpi strong{font-size:32px}
      .news-item{display:block}.news-item time{display:block;margin-top:6px}
      .service-main,.service-side{padding:25px}.form-grid{grid-template-columns:1fr}.field-full{grid-column:auto}
      .footer-top,.copyright{display:block}.footer-links{margin-top:25px;flex-wrap:wrap}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: category1 */
:root{
      --ink:#151718;--paper:#f5f6f3;--white:#fff;--muted:#666d70;
      --line:#dde1dd;--lime:#c7f23a;--coral:#ff715b;--soft:#e9ece7;
      --shadow:0 10px 26px rgba(21,23,24,.07);--radius:6px;
      --container:1240px;--ease:all .22s ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 56px));margin:0 auto}
    .site-header{background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .nav-wrap{min-height:78px;display:flex;align-items:center;gap:34px}
    .brand{font-weight:800;font-size:18px;line-height:1.1;max-width:240px}
    .brand span{display:block;color:var(--coral);font-size:11px;font-weight:700;letter-spacing:1px;margin-top:5px}
    .main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
    .main-nav a{font-size:14px;font-weight:700;padding:26px 0;position:relative}
    .main-nav a:not(.nav-cta)::after{content:"";position:absolute;height:3px;background:var(--lime);left:0;right:100%;bottom:17px;transition:var(--ease)}
    .main-nav a:not(.nav-cta):hover::after,.main-nav a.active:not(.nav-cta)::after{right:0}
    .nav-cta,.button-primary{background:var(--lime);color:var(--ink);border:1px solid var(--lime);font-weight:800;min-height:46px;padding:10px 21px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;transition:var(--ease)}
    .nav-cta:hover,.button-primary:hover{background:var(--ink);border-color:var(--ink);color:var(--lime);transform:translateY(-2px)}
    .nav-cta:active,.button-primary:active{transform:translateY(0)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);padding:9px 12px;border-radius:4px;font-size:22px;min-width:44px;min-height:44px}
    .page-hero{background:var(--ink);color:#fff;padding:72px 0 68px}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:#aeb6b1;font-size:13px;margin-bottom:25px}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb strong{color:var(--lime);font-weight:700}
    .hero-kicker,.section-kicker{font-size:12px;letter-spacing:1.8px;font-weight:800;text-transform:uppercase;color:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,5vw,64px);line-height:1.1;letter-spacing:0;font-weight:800;margin:14px 0 22px;max-width:820px}
    h2{font-size:38px;line-height:1.2;font-weight:800;margin:9px 0 15px}
    h3{font-size:22px;line-height:1.35;font-weight:800}
    .page-hero-copy{max-width:720px;color:#d9ded9;font-size:18px;margin-bottom:28px}
    .hero-status{display:flex;flex-wrap:wrap;gap:24px;color:#c9d0ca;font-size:14px}
    .hero-status span{border-left:2px solid var(--coral);padding-left:11px}
    .hero-status b{color:var(--lime);margin-right:5px}
    .section{padding:92px 0}
    .section-white{background:var(--white)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
    .section-intro{color:var(--muted);max-width:650px;margin-bottom:0}
    .browse-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:54px;align-items:start}
    .filter-panel{background:var(--white);border:1px solid var(--line);padding:25px;position:sticky;top:105px}
    .filter-title{font-size:18px;font-weight:800;margin-bottom:18px}
    .filter-panel label{display:block;color:var(--muted);font-size:13px;font-weight:700;margin:18px 0 7px}
    .filter-panel select,.filter-panel input{background:var(--paper);border:1px solid var(--line);border-radius:4px;min-height:44px;padding:8px 10px;width:100%;color:var(--ink)}
    .filter-links{border-top:1px solid var(--line);margin-top:22px;padding-top:15px}
    .filter-links a{display:block;padding:10px 0;font-weight:700;border-bottom:1px solid var(--line)}
    .filter-links a:hover,.filter-links a.active{color:#718600}
    .filter-links a.active:before{content:"— ";color:var(--coral)}
    .result-bar{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:18px;gap:18px}
    .result-bar strong{font-size:18px}
    .result-bar span{color:var(--muted);font-size:13px}
    .topic-feature{display:grid;grid-template-columns:300px 1fr;gap:28px;background:var(--ink);color:#fff;padding:18px;border-radius:var(--radius);margin-bottom:18px;transition:var(--ease)}
    .topic-feature:hover,.topic-item:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .topic-image{width:100%;aspect-ratio:16/10;object-fit:cover}
    .topic-feature .topic-image{min-height:210px}
    .topic-body{padding:10px 10px 10px 0}
    .badge{display:inline-block;padding:4px 9px;border-radius:3px;font-size:11px;font-weight:800;line-height:1.3;background:var(--lime);color:var(--ink)}
    .badge.coral{background:var(--coral)}
    .topic-body h3{font-size:27px;margin:20px 0 10px}
    .topic-body p{color:#cbd1cc;margin-bottom:18px}
    .topic-meta{display:flex;gap:18px;flex-wrap:wrap;color:#9fa8a2;font-size:13px}
    .topic-meta strong{color:var(--lime)}
    .topic-list{display:grid;gap:12px}
    .topic-item{display:grid;grid-template-columns:150px 1fr auto;gap:21px;align-items:center;background:var(--white);border:1px solid var(--line);padding:14px;transition:var(--ease)}
    .topic-item img{aspect-ratio:16/10;object-fit:cover}
    .topic-item h3{font-size:19px;margin:7px 0 5px}
    .topic-item p{font-size:14px;color:var(--muted);line-height:1.6;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .item-meta{color:var(--muted);font-size:12px;white-space:nowrap}
    .item-link{font-weight:800;border-bottom:1px solid var(--ink);white-space:nowrap}
    .item-link:hover{color:#718600;border-color:#718600}
    .notice-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}
    .notice{border-left:3px solid var(--lime);background:var(--soft);padding:18px 20px}
    .notice h3{font-size:17px;margin-bottom:7px}
    .notice p{font-size:14px;color:var(--muted);margin:0}
    .pagination{display:flex;justify-content:center;gap:7px;margin-top:35px}
    .pagination a,.pagination span{border:1px solid var(--line);background:var(--white);min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;border-radius:4px}
    .pagination a:hover,.pagination .current{background:var(--lime);border-color:var(--lime)}
    .pagination .disabled{color:#abb1ae;background:var(--soft);cursor:not-allowed}
    .index-band{background:var(--ink);color:#fff}
    .index-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .index-band h2{max-width:570px}
    .index-band p{color:#cbd1cc;max-width:620px}
    .route-list{border-top:1px solid #3d4440}
    .route{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid #3d4440}
    .route b{color:var(--lime);font-size:18px}
    .route strong{display:block;margin-bottom:3px}
    .route span{color:#aeb6b1;font-size:14px}
    .faq-section{background:var(--paper)}
    .faq-wrap{max-width:900px}
    .accordion{background:transparent;margin:0}
    .accordion-item{border-bottom:1px solid var(--line);background:transparent}
    .accordion-title{color:var(--ink);font-size:18px;font-weight:750;padding:22px 45px 22px 0;border:0;position:relative}
    .accordion-title:before{content:"+";right:4px;top:17px;font-size:25px;font-weight:400}
    .is-active>.accordion-title:before{content:"−"}
    .accordion-title:hover{color:#718600;background:transparent}
    .accordion-content{border:0;background:transparent;color:var(--muted);padding:0 45px 21px 0}
    .cta-section{padding:70px 0;background:var(--lime)}
    .cta-grid{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-section h2{margin-bottom:8px;font-size:32px}
    .cta-section p{margin:0;max-width:680px}
    .button-dark{background:var(--ink);border-color:var(--ink);color:var(--lime)}
    .button-dark:hover{background:#fff;color:var(--ink);border-color:#fff}
    .site-footer{background:var(--ink);color:#fff;padding:42px 0 25px}
    .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:34px;border-bottom:1px solid #3c4140}
    .footer-brand{font-size:18px;font-weight:800;max-width:260px;line-height:1.4}
    .footer-brand small{display:block;color:#adb5af;font-size:13px;font-weight:400;margin-top:9px}
    .footer-links{display:flex;gap:25px;flex-wrap:wrap;align-items:flex-start}
    .footer-links a{color:#dbe0db;font-size:14px}
    .footer-links a:hover{color:var(--lime)}
    .copyright{display:flex;justify-content:space-between;gap:20px;color:#89928c;font-size:12px;padding-top:20px}
    .copyright a{color:#c7f23a}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media(max-width:1024px){
      .container{width:min(var(--container),calc(100% - 44px))}
      .browse-layout{gap:30px}.topic-feature{grid-template-columns:240px 1fr}
      .index-grid{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .nav-wrap{min-height:68px;justify-content:space-between}.brand{font-size:16px;max-width:220px}
      .menu-toggle{display:block}.main-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);padding:8px 20px;box-shadow:var(--shadow);align-items:stretch;flex-direction:column;gap:0}
      .main-nav.is-open{display:flex}.main-nav a{padding:14px 0}.main-nav a:not(.nav-cta)::after{bottom:7px}.main-nav .nav-cta{margin:8px 0}
      .page-hero{padding:53px 0 50px}h1{font-size:42px}.page-hero-copy{font-size:16px}
      .section{padding:68px 0}.section-head,.cta-grid{display:block}.section-intro{margin-top:15px}
      .browse-layout{grid-template-columns:1fr}.filter-panel{position:static}.topic-feature{grid-template-columns:1fr}.topic-feature .topic-image{min-height:0}
      .topic-item{grid-template-columns:120px 1fr}.item-link{grid-column:2}.item-meta{grid-column:2}
      .notice-strip,.index-grid{grid-template-columns:1fr}.index-grid{gap:35px}
      .cta-grid .button-primary{margin-top:22px}.copyright,.footer-top{display:block}.footer-links{margin-top:25px}
      .copyright span{display:block;margin-top:8px}
    }
    @media(max-width:480px){
      h1{font-size:36px}.hero-status{gap:12px;display:grid}.topic-item{grid-template-columns:1fr}.topic-item img{width:100%}.item-link,.item-meta{grid-column:auto}
      .topic-body h3{font-size:23px}.result-bar{display:block}.result-bar span{display:block;margin-top:5px}
    }