/* roulang page: index */
:root{
      --bg:#f6f8fb;
      --surface:#ffffff;
      --surface-soft:#edf4fb;
      --ink:#172331;
      --muted:#667587;
      --line:#dbe4ed;
      --blue:#1769aa;
      --blue-dark:#0d4f85;
      --cyan:#2c9b9b;
      --yellow:#e7b84b;
      --radius:16px;
      --shadow:0 14px 34px rgba(22,54,83,.09);
      --shadow-hover:0 20px 42px rgba(22,54,83,.15);
      --max:1220px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(23,105,170,.3);outline-offset:3px}
    .container{width:100%;max-width:var(--max);margin:0 auto;padding-left:24px;padding-right:24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(25,53,80,.05)}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--ink);white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 7px 14px rgba(23,105,170,.22)}
    .brand-name{font-size:17px;letter-spacing:0}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:var(--blue);background:var(--surface-soft)}
    .nav-actions{display:flex;gap:9px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:9px 17px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;line-height:1.2;transition:all .2s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 16px rgba(23,105,170,.2)}
    .button.primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
    .button.primary:active{transform:translateY(0);box-shadow:none}
    .button.secondary{background:#fff;border-color:var(--line);color:var(--blue)}
    .button.secondary:hover{border-color:var(--blue);background:var(--surface-soft)}
    .menu-icon{display:none;background:none;border:0;color:var(--ink);font-size:25px;padding:5px}
    .hero{position:relative;overflow:hidden;background:#eaf3fb;border-bottom:1px solid var(--line)}
    .hero-inner{min-height:620px;display:grid;grid-template-columns:minmax(0,1fr) minmax(430px,1.02fr);gap:55px;align-items:center;padding-top:72px;padding-bottom:72px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--yellow)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,5vw,68px);line-height:1.14;letter-spacing:0;font-weight:850;margin:18px 0 23px;max-width:670px}
    .hero-copy{font-size:18px;line-height:1.9;color:#4e6071;max-width:640px;margin-bottom:30px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:27px}
    .hero-notes{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:13px}
    .hero-notes span{display:inline-flex;align-items:center;gap:7px}
    .hero-notes i{width:7px;height:7px;border-radius:50%;background:var(--cyan)}
    .visual-stage{position:relative;min-height:420px}
    .visual-stage svg{width:100%;height:420px;filter:drop-shadow(0 18px 24px rgba(36,75,110,.12))}
    .visual-caption{position:absolute;left:20px;bottom:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;box-shadow:var(--shadow);font-size:13px;color:var(--muted)}
    .section{padding:94px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:38px}
    .section-head h2{font-size:35px;line-height:1.25;margin:10px 0 0;font-weight:800}
    .section-head p{max-width:590px;color:var(--muted);margin:0}
    .entry-grid{display:grid;grid-template-columns:1.3fr .9fr .9fr;gap:18px}
    .entry{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-height:220px;box-shadow:var(--shadow);overflow:hidden}
    .entry:first-child{background:#145f96;color:#fff}
    .entry:first-child p,.entry:first-child .entry-meta{color:#d9eaf7}
    .entry:hover,.feature-card:hover,.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .entry-number{font-size:13px;color:var(--yellow);font-weight:800}
    .entry h3{font-size:23px;margin:27px 0 10px}
    .entry p{color:var(--muted);font-size:14px;line-height:1.75}
    .entry-meta{position:absolute;bottom:24px;color:var(--muted);font-size:12px}
    .stats-band{background:#173f62;color:#fff;padding:31px 0}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
    .stat{padding:6px 28px;border-right:1px solid rgba(255,255,255,.2)}
    .stat:first-child{padding-left:0}.stat:last-child{border:0}
    .stat strong{display:block;font-size:32px;line-height:1.2;color:#fff}
    .stat span{display:block;color:#c7dbea;font-size:13px;margin-top:5px}
    .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
    .feature-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:all .25s}
    .feature-art{height:245px;background:#cfe3ef;overflow:hidden}
    .feature-art svg{width:100%;height:100%}
    .feature-content{padding:25px 27px}
    .badge{display:inline-block;border-radius:99px;padding:4px 10px;background:#e4f3f1;color:#197878;font-size:12px;font-weight:700}
    .feature-content h3{font-size:25px;margin:15px 0 9px}
    .feature-content p{color:var(--muted);font-size:14px;margin-bottom:18px}
    .news-list{display:flex;flex-direction:column;gap:13px}
    .news-item{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 17px;transition:all .25s}
    .news-thumb{width:78px;height:62px;flex:0 0 78px;border-radius:8px;background:#dcecf3;display:grid;place-items:center;color:var(--blue);font-size:22px}
    .news-item h4{font-size:16px;margin:0 0 3px;line-height:1.45}
    .news-item p{font-size:12px;color:var(--muted);margin:0}
    .path-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:12px}
    .path-step{padding:25px 30px;border-left:1px solid var(--line)}
    .path-step:first-child{border-left:0;padding-left:0}
    .step-no{color:var(--blue);font-weight:900;font-size:14px}
    .path-step h3{font-size:20px;margin:13px 0 7px}
    .path-step p{color:var(--muted);font-size:14px;margin-bottom:15px}
    .faq-wrap{max-width:850px;margin:0 auto}
    .accordion{background:transparent}
    .accordion-item{border:1px solid var(--line);border-radius:11px!important;margin-bottom:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;color:var(--ink);font-weight:750;font-size:16px;padding:20px 23px}
    .accordion-title:hover{background:var(--surface-soft);color:var(--blue)}
    .accordion-content{border:0;background:#fbfcfd;color:var(--muted);font-size:14px;padding:0 23px 20px}
    .contact-section{padding-top:25px}
    .contact-band{background:#dfeef7;border-radius:20px;padding:44px 48px;display:grid;grid-template-columns:1fr 1fr;gap:42px;border:1px solid #c9dfec}
    .contact-band h2{font-size:32px;margin:12px 0 13px}
    .contact-band p{color:var(--muted);max-width:500px}
    .contact-form{background:#fff;padding:24px;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow)}
    label{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px}
    input,select,textarea{border:1px solid var(--line)!important;border-radius:8px!important;box-shadow:none!important;background:#fbfcfd!important;margin-bottom:14px!important;padding:11px 12px!important}
    input:focus,select:focus,textarea:focus{border-color:var(--blue)!important;background:#fff!important}
    textarea{min-height:95px;resize:vertical}
    .check-line{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:var(--muted);margin:3px 0 16px}
    .check-line input{margin:4px 0 0!important}
    .form-status{display:none;color:var(--cyan);font-size:13px;margin-top:10px}
    footer{background:#162b3d;color:#cbd9e4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px}
    footer .brand{color:#fff;margin-bottom:15px}
    footer .brand-mark{background:#3b91c5}
    footer p{font-size:13px;color:#9fb4c5;max-width:300px}
    footer h3{font-size:14px;color:#fff;margin:0 0 14px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{font-size:13px;color:#a9bdca}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:21px;font-size:12px;color:#91a8b8;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:900px){
      .main-nav{display:none}.nav-actions{display:none}.menu-icon{display:block}
      .topbar{min-height:68px}.hero-inner{grid-template-columns:1fr;gap:25px;padding-top:55px}.visual-stage{min-height:330px}.visual-stage svg{height:330px}
      .entry-grid,.feature-layout{grid-template-columns:1fr 1fr}.entry:first-child{grid-column:span 2}.contact-band{grid-template-columns:1fr}
    }
    @media(max-width:640px){
      .container{padding-left:18px;padding-right:18px}.brand-name{font-size:14px}.brand-mark{width:34px;height:34px}
      h1{font-size:39px}.hero-copy{font-size:16px}.hero-inner{min-height:auto;padding:47px 0 35px}.visual-stage{min-height:245px}.visual-stage svg{height:245px}.visual-caption{font-size:11px;left:5px}
      .section{padding:63px 0}.section-head{display:block;margin-bottom:25px}.section-head h2{font-size:29px}.section-head p{margin-top:14px}
      .entry-grid,.path-grid{grid-template-columns:1fr}.entry:first-child{grid-column:auto}.entry{min-height:190px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}.stat{padding:0 12px;border:0}.stat:first-child{padding-left:0}
      .stat strong{font-size:27px}.feature-layout{grid-template-columns:1fr}.feature-art{height:200px}.contact-band{padding:30px 20px}.contact-band h2{font-size:27px}.path-step{border-left:0;border-top:1px solid var(--line);padding:22px 0}.path-step:first-child{border-top:0}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }

/* roulang page: category2 */
:root{
      --bg:#f6f8fb;
      --surface:#fff;
      --surface-soft:#edf4fb;
      --ink:#172331;
      --muted:#667587;
      --line:#dbe4ed;
      --blue:#1769aa;
      --blue-dark:#0d4f85;
      --cyan:#2c9b9b;
      --yellow:#e7b84b;
      --radius:16px;
      --shadow:0 14px 34px rgba(22,54,83,.09);
      --shadow-hover:0 20px 42px rgba(22,54,83,.15);
      --max:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(23,105,170,.3);outline-offset:3px}
    .container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(25,53,80,.05)}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--ink);white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 7px 14px rgba(23,105,170,.22)}
    .brand-name{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:var(--blue);background:var(--surface-soft)}
    .nav-actions{display:flex;gap:9px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:9px 17px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;line-height:1.2;transition:all .2s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 16px rgba(23,105,170,.2)}
    .button.primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
    .button.primary:active{transform:translateY(0);box-shadow:none}
    .button.secondary{background:#fff;border-color:var(--line);color:var(--blue)}
    .button.secondary:hover{border-color:var(--blue);background:var(--surface-soft)}
    .menu-icon{display:none;background:none;border:0;color:var(--ink);font-size:25px;padding:5px}
    .page-head{background:#eaf3fb;border-bottom:1px solid var(--line);padding:70px 0 58px}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:25px}
    .breadcrumb a:hover{color:var(--blue)}
    .page-head-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:46px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.04em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--yellow)}
    h1{font-size:clamp(38px,5vw,62px);line-height:1.18;margin:11px 0 17px;font-weight:800}
    .page-lead{color:#4e6071;max-width:760px;font-size:18px;margin:0}
    .head-meta{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;box-shadow:var(--shadow)}
    .head-meta strong{display:block;font-size:31px;color:var(--blue);line-height:1.2}
    .head-meta span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:35px}
    .section-head h2{font-size:34px;line-height:1.3;margin:10px 0 0;font-weight:800}
    .section-head p{max-width:590px;color:var(--muted);margin:0}
    .topic-layout{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(280px,.82fr);gap:28px;align-items:stretch}
    .topic-feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
    .topic-art{height:315px;background:#c9dfea;overflow:hidden}
    .topic-art svg{width:100%;height:100%}
    .topic-copy{padding:27px 30px 30px}
    .badge{display:inline-block;border-radius:99px;padding:4px 11px;background:#e4f3f1;color:#197878;font-size:12px;font-weight:700}
    .badge.blue{background:#e6f0fa;color:var(--blue)}
    .topic-copy h3{font-size:27px;line-height:1.35;margin:14px 0 9px}
    .topic-copy p{color:var(--muted);margin:0 0 20px}
    .topic-list{display:flex;flex-direction:column;gap:12px}
    .topic-item{display:flex;gap:17px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:17px 18px;transition:all .25s}
    .topic-item:hover{transform:translateX(4px);border-color:#b7d0e2;box-shadow:var(--shadow)}
    .topic-number{flex:0 0 35px;height:35px;border-radius:10px;background:var(--surface-soft);color:var(--blue);display:grid;place-items:center;font-weight:800;font-size:13px}
    .topic-item h3{font-size:17px;margin:0 0 3px;line-height:1.45}
    .topic-item p{font-size:13px;color:var(--muted);margin:0}
    .topic-item time{display:block;color:#8a98a5;font-size:12px;margin-top:5px}
    .filter-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 0}
    .filter-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
    .filter-label{font-weight:800;font-size:14px;margin-right:5px}
    .filter-chip{border:1px solid var(--line);background:#fbfcfd;color:var(--muted);border-radius:99px;padding:8px 15px;font-size:13px;cursor:pointer}
    .filter-chip:hover,.filter-chip.active{background:var(--surface-soft);border-color:#9fc1dc;color:var(--blue)}
    .directory{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}
    .directory-note{padding-top:8px}
    .directory-note h2{font-size:32px;line-height:1.3;margin:10px 0 15px}
    .directory-note p{color:var(--muted);margin:0 0 22px}
    .mini-points{list-style:none;padding:0;margin:0}
    .mini-points li{border-top:1px solid var(--line);padding:13px 0;color:#435567;font-size:14px}
    .mini-points li:before{content:"✓";color:var(--cyan);font-weight:800;margin-right:10px}
    .directory-table{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
    .directory-row{display:grid;grid-template-columns:125px 1fr auto;gap:18px;align-items:center;padding:20px 23px;border-bottom:1px solid var(--line)}
    .directory-row:last-child{border-bottom:0}
    .directory-row:hover{background:#f8fbfe}
    .directory-row strong{font-size:16px}
    .directory-row small{display:block;color:var(--muted);font-size:12px}
    .row-count{color:var(--blue);font-weight:800;font-size:14px;white-space:nowrap}
    .faq-wrap{max-width:850px;margin:0 auto}
    .accordion-item{border:1px solid var(--line);border-radius:11px!important;margin-bottom:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;color:var(--ink);font-weight:750;font-size:16px;padding:20px 23px}
    .accordion-title:hover{background:var(--surface-soft);color:var(--blue)}
    .accordion-content{border:0!important;color:var(--muted);font-size:14px;line-height:1.8;padding:0 23px 20px}
    .cta-section{padding:75px 0;background:#1769aa;color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-inner h2{font-size:32px;margin:0 0 8px;line-height:1.35}
    .cta-inner p{margin:0;color:#dcecf8}
    .cta-section .button.secondary{background:#fff;border-color:#fff;color:var(--blue)}
    footer{background:#162b3d;color:#cbd9e4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr .9fr;gap:34px}
    footer .brand{color:#fff}
    footer .brand-mark{background:#2d82bd}
    footer p{font-size:13px;color:#9db2c2;max-width:300px;margin:17px 0 0}
    footer h3{font-size:14px;color:#fff;margin:0 0 14px}
    .footer-links{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#a9bfce}
    .footer-links a:hover{color:#fff}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:19px;color:#8da5b5;font-size:12px}
    @media(max-width:1024px){
      .main-nav a{padding-left:8px;padding-right:8px}
      .page-head-grid{grid-template-columns:1fr 260px}
      .topic-layout,.directory{gap:22px}
    }
    @media(max-width:768px){
      .topbar{min-height:68px}
      .menu-icon{display:block}
      .main-nav,.nav-actions{display:none}
      .topbar.menu-open{flex-wrap:wrap}
      .topbar.menu-open .main-nav,.topbar.menu-open .nav-actions{display:flex;width:100%}
      .topbar.menu-open .main-nav{order:3;flex-direction:column;align-items:stretch;padding-bottom:5px}
      .topbar.menu-open .main-nav a{padding:11px 13px}
      .topbar.menu-open .nav-actions{order:4;padding-bottom:14px}
      .brand-name{font-size:15px}
      .page-head{padding:48px 0 42px}
      .page-head-grid,.topic-layout,.directory{grid-template-columns:1fr}
      h1{font-size:40px}
      .head-meta{max-width:320px}
      .section{padding:62px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-head h2{font-size:29px;margin-bottom:9px}
      .topic-art{height:245px}
      .directory-note{padding-top:0}
      .cta-inner{display:block}
      .cta-inner .button{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      .container{padding-left:18px;padding-right:18px}
      .brand-mark{width:34px;height:34px}
      .brand-name{font-size:14px}
      h1{font-size:34px}
      .page-lead{font-size:16px}
      .topic-copy{padding:22px}
      .topic-copy h3{font-size:23px}
      .directory-row{grid-template-columns:44px 1fr;gap:12px;padding:16px}
      .directory-row .row-count{grid-column:2}
      .filter-row{align-items:flex-start}
      .filter-label{width:100%}
      .copyright{display:block}
      .copyright span{display:block;margin-top:6px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
    }

/* roulang page: category1 */
:root{
      --bg:#f6f8fb;
      --surface:#fff;
      --surface-soft:#edf4fb;
      --ink:#172331;
      --muted:#667587;
      --line:#dbe4ed;
      --blue:#1769aa;
      --blue-dark:#0d4f85;
      --cyan:#2c9b9b;
      --yellow:#e7b84b;
      --radius:16px;
      --shadow:0 14px 34px rgba(22,54,83,.09);
      --shadow-hover:0 20px 42px rgba(22,54,83,.15);
      --max:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(23,105,170,.3);outline-offset:3px}
    .container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(25,53,80,.05)}
    .topbar{min-height:76px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--ink);white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 7px 14px rgba(23,105,170,.22)}
    .brand-name{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:var(--blue);background:var(--surface-soft)}
    .nav-actions{display:flex;gap:9px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:9px 17px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;line-height:1.2;cursor:pointer;transition:all .2s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 16px rgba(23,105,170,.2)}
    .button.primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
    .button.primary:active{transform:translateY(0);box-shadow:none}
    .button.secondary{background:#fff;border-color:var(--line);color:var(--blue)}
    .button.secondary:hover{border-color:var(--blue);background:var(--surface-soft)}
    .menu-icon{display:none;background:none;border:0;color:var(--ink);font-size:25px;padding:5px}
    .page-heading{background:#eaf3fb;border-bottom:1px solid var(--line);padding:64px 0 58px}
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumbs a:hover{color:var(--blue)}
    .breadcrumbs span{color:#9aa9b7}
    .heading-layout{display:flex;align-items:end;justify-content:space-between;gap:40px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.04em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--yellow)}
    h1{font-size:clamp(34px,4vw,56px);line-height:1.2;margin:12px 0 16px;font-weight:800;letter-spacing:0}
    .heading-copy{max-width:700px;color:#526475;font-size:17px;margin:0}
    .heading-stat{min-width:190px;border-left:1px solid #c9d9e6;padding-left:24px}
    .heading-stat strong{display:block;color:var(--blue);font-size:36px;line-height:1.1}
    .heading-stat span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
    .section{padding:78px 0}
    .index-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:34px;align-items:start}
    .filter-panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);position:sticky;top:102px}
    .filter-panel h2{font-size:20px;margin:0 0 17px}
    .filter-panel label{display:block;color:var(--muted);font-size:13px;font-weight:700;margin:15px 0 6px}
    select,input[type="search"]{width:100%;border:1px solid var(--line)!important;border-radius:8px!important;box-shadow:none!important;background:#fbfcfd!important;padding:10px 11px!important;margin:0!important;color:var(--ink)}
    select:focus,input[type="search"]:focus{border-color:var(--blue)!important;background:#fff!important}
    .filter-note{border-top:1px solid var(--line);margin-top:20px;padding-top:17px;color:var(--muted);font-size:12px}
    .list-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:17px}
    .list-head h2{font-size:27px;margin:0}
    .list-head p{color:var(--muted);font-size:13px;margin:0}
    .content-list{display:flex;flex-direction:column;gap:14px}
    .content-item{display:grid;grid-template-columns:170px minmax(0,1fr) auto;gap:20px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);transition:all .25s ease}
    .content-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .thumb{height:116px;border-radius:10px;overflow:hidden;background:#d9e9f1}
    .thumb svg{width:100%;height:100%}
    .item-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--muted);font-size:12px}
    .badge{display:inline-block;border-radius:99px;padding:4px 10px;background:#e4f3f1;color:#197878;font-size:12px;font-weight:700}
    .badge.warm{background:#fff5d8;color:#886718}
    .content-item h3{font-size:19px;line-height:1.4;margin:9px 0 5px}
    .content-item p{color:var(--muted);font-size:13px;line-height:1.7;margin:0}
    .item-link{color:var(--blue);font-weight:700;font-size:13px;white-space:nowrap}
    .item-link:hover{color:var(--blue-dark)}
    .pagination{display:flex;gap:8px;margin-top:25px;justify-content:flex-end}
    .page-number{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--muted);font-size:13px}
    .page-number:hover,.page-number.active{background:var(--blue);border-color:var(--blue);color:#fff}
    .page-number.disabled{color:#b4c0ca;background:#f0f3f5;cursor:not-allowed}
    .related-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .related-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .related-card{border:1px solid var(--line);border-radius:13px;padding:25px;background:var(--surface);transition:all .25s}
    .related-card:hover{border-color:var(--blue);transform:translateY(-3px);box-shadow:var(--shadow)}
    .related-card h3{font-size:20px;margin:10px 0 7px}
    .related-card p{color:var(--muted);font-size:14px;margin:0 0 15px}
    .faq-wrap{max-width:850px;margin:0 auto}
    .accordion-item{border:1px solid var(--line);border-radius:11px!important;margin-bottom:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;color:var(--ink);font-weight:750;font-size:16px;padding:20px 23px}
    .accordion-title:hover{background:var(--surface-soft);color:var(--blue)}
    .accordion-content{border-top:1px solid var(--line)!important;color:var(--muted);font-size:14px;line-height:1.8}
    .cta-section{padding:70px 0}
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:28px;background:#1769aa;color:#fff;border-radius:16px;padding:38px 43px;box-shadow:var(--shadow)}
    .cta-box h2{font-size:28px;margin:0 0 8px}
    .cta-box p{margin:0;color:#dcecf8;font-size:14px}
    .cta-box .button{background:#fff;color:var(--blue)}
    .cta-box .button:hover{background:#eaf3fb}
    footer{background:#162b3d;color:#cbd9e4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    footer .brand{color:#fff;margin-bottom:16px}
    footer p{color:#9fb4c4;font-size:13px;max-width:300px}
    footer h3{color:#fff;font-size:14px;margin:0 0 14px}
    .footer-links{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#9fb4c4}
    .footer-links a:hover{color:#fff}
    .copyright{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);margin-top:38px;padding-top:19px;color:#8da5b6;font-size:12px}
    @media(max-width:1024px){
      .main-nav{gap:0}.main-nav a{padding:8px 9px}.brand-name{font-size:15px}
      .index-layout{grid-template-columns:220px minmax(0,1fr)}
    }
    @media(max-width:767px){
      .container{padding:0 18px}.topbar{min-height:68px;flex-wrap:wrap;gap:10px}.menu-icon{display:block;margin-left:auto}
      .main-nav{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;margin:0;padding:10px 0 14px;border-top:1px solid var(--line)}
      .main-nav.is-open{display:flex}.main-nav a{padding:11px 12px}.nav-actions{display:none}
      .page-heading{padding:42px 0}.heading-layout{display:block}.heading-stat{border-left:0;border-top:1px solid #c9d9e6;margin-top:25px;padding:16px 0 0}
      h1{font-size:36px}.section{padding:55px 0}.index-layout{display:block}.filter-panel{position:static;margin-bottom:28px}
      .content-item{grid-template-columns:92px minmax(0,1fr);gap:13px;padding:12px}.thumb{height:88px}.item-link{grid-column:2}
      .content-item h3{font-size:16px;margin:6px 0 4px}.content-item p{font-size:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
      .list-head{display:block}.list-head p{margin-top:5px}.pagination{justify-content:center}.related-layout{grid-template-columns:1fr}
      .cta-box{display:block;padding:29px 24px}.cta-box .button{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media(max-width:520px){.brand-name{font-size:14px}.brand-mark{width:34px;height:34px}.breadcrumbs{font-size:12px}.footer-grid{grid-template-columns:1fr}}