/* roulang page: index */
:root{
            --blue:#2563eb;
            --blue-dark:#1746ad;
            --blue-soft:#eaf2ff;
            --ice:#eff8fb;
            --ink:#17233d;
            --muted:#68758c;
            --line:#dce5f0;
            --paper:#ffffff;
            --bg:#f7faff;
            --coral:#e67c68;
            --radius:18px;
            --shadow:0 14px 38px rgba(28,64,120,.09);
            --shadow-hover:0 18px 42px rgba(28,64,120,.15);
        }
        *,*: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",sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.2s ease}
        button,input,select{font:inherit}
        .container{max-width:1220px}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .navbar{min-height:76px;padding:13px 0}
        .brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
        .brand-mark{width:35px;height:35px;display:grid;place-items:center;border-radius:11px;background:var(--blue-soft);color:var(--blue);font-size:17px}
        .nav-link{position:relative;color:#63718a;font-size:14px;font-weight:650;padding:12px 13px!important}
        .nav-link:hover,.nav-link.active{color:var(--blue)}
        .nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--blue);border-radius:2px}
        .command-search{display:flex;align-items:center;gap:8px;width:190px;height:42px;padding:0 11px;border:1px solid var(--line);border-radius:12px;background:#f5f8fc;color:#8a96a9}
        .command-search input{width:100%;border:0;outline:0;background:transparent;color:var(--ink);font-size:13px}
        .keycap{font-size:10px;border:1px solid #d4dfeb;border-radius:5px;padding:1px 5px;white-space:nowrap;background:#fff}
        .btn-main,.btn-outline{min-height:44px;border-radius:11px;padding:10px 19px;font-size:14px;font-weight:750;transition:.2s ease}
        .btn-main{background:var(--blue);border:1px solid var(--blue);color:white;box-shadow:0 7px 16px rgba(37,99,235,.18)}
        .btn-main:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff;transform:translateY(-2px);box-shadow:0 11px 22px rgba(37,99,235,.24)}
        .btn-outline{background:#fff;border:1px solid #b9cce7;color:var(--blue)}
        .btn-outline:hover{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-dark);transform:translateY(-2px)}
        .hero{padding:78px 0 30px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:22px;height:2px;background:var(--coral)}
        h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-.055em;margin:17px 0 22px;font-weight:850}
        .hero-copy{max-width:650px;color:var(--muted);font-size:17px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .hero-board{position:relative;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
        .hero-board:before{content:"";position:absolute;right:-55px;top:-55px;width:180px;height:180px;border-radius:50%;background:var(--blue-soft)}
        .board-top{position:relative;display:flex;justify-content:space-between;align-items:center;margin-bottom:21px}
        .board-title{font-size:14px;font-weight:800}
        .live{display:flex;align-items:center;gap:6px;color:#4c7b70;font-size:12px}
        .live i{width:7px;height:7px;background:#54b294;border-radius:50%}
        .metric-primary{position:relative;padding:20px;border-radius:16px;background:var(--blue);color:#fff;margin-bottom:13px}
        .metric-primary strong{display:block;font-size:38px;line-height:1.1}
        .metric-primary span{font-size:13px;opacity:.8}
        .metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .metric{padding:16px;border:1px solid var(--line);border-radius:14px;background:#fbfdff}
        .metric b{display:block;font-size:23px;color:var(--ink)}
        .metric small{color:var(--muted);font-size:12px}
        .chips{display:flex;gap:9px;flex-wrap:wrap;margin-top:35px}
        .chip,.badge-soft{display:inline-flex;align-items:center;border:1px solid #cbdcf2;background:#fff;border-radius:30px;color:#536782;padding:6px 12px;font-size:12px;font-weight:650}
        .chip:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
        .section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
        .section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
        h2{font-size:clamp(27px,3vw,39px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0;font-weight:830}
        .section-intro{max-width:535px;color:var(--muted);font-size:15px;margin:0}
        .matrix{display:grid;grid-template-columns:1.25fr .85fr .85fr;grid-template-rows:1fr 1fr;gap:16px}
        .entry-card{position:relative;min-height:190px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden}
        .entry-card.large{grid-row:span 2;background:var(--blue-soft)}
        .entry-card.ice{background:var(--ice)}
        .entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
        .entry-index{font-size:12px;color:var(--blue);font-weight:800}
        .entry-card h3{font-size:21px;margin:40px 0 8px;font-weight:800}
        .entry-card p{font-size:13px;color:var(--muted);margin:0;max-width:270px}
        .entry-arrow{position:absolute;right:22px;bottom:20px;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#fff;color:var(--blue);font-size:19px}
        .compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}
        .compare-panel{padding:30px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
        .compare-panel.primary{background:var(--blue-soft);border-color:#c9dcfb}
        .compare-panel h3{font-size:20px;margin:0 0 20px}
        .compare-list{list-style:none;padding:0;margin:0}
        .compare-list li{display:flex;align-items:flex-start;gap:11px;padding:12px 0;border-bottom:1px solid rgba(129,157,197,.2);font-size:14px}
        .compare-list li:last-child{border-bottom:0}
        .check{color:var(--blue);font-weight:900}
        .faq-shell{max-width:850px;margin:auto}
        .accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:10px;background:#fff}
        .accordion-button{font-weight:750;color:var(--ink);background:#fff;padding:19px 22px;box-shadow:none!important}
        .accordion-button:not(.collapsed){color:var(--blue);background:var(--blue-soft)}
        .accordion-body{color:var(--muted);font-size:14px;padding:0 22px 20px;background:var(--blue-soft)}
        .lead-form{padding:38px;border:1px solid #cbdcf2;border-radius:24px;background:#edf5ff;box-shadow:var(--shadow)}
        .lead-form h2{font-size:31px}
        .form-label{font-size:13px;font-weight:750;margin-bottom:7px}
        .form-control,.form-select{min-height:47px;border:1px solid #cbd9e9;border-radius:10px;background:#fff;color:var(--ink);font-size:14px}
        .form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
        .form-note{color:var(--muted);font-size:12px}
        .info-band{padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
        .info-items{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .info-items span{display:flex;align-items:center;gap:8px}.info-items b{color:var(--ink)}
        footer{padding:48px 0 25px;background:#fff;border-top:1px solid var(--line)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
        .footer-brand p{max-width:300px;color:var(--muted);font-size:13px;margin-top:14px}
        footer h4{font-size:13px;margin:0 0 14px}
        .footer-links{display:grid;gap:9px;color:var(--muted);font-size:13px}
        .footer-links a:hover{color:var(--blue)}
        .copyright{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:38px;padding-top:18px;border-top:1px solid var(--line);color:#8a96a8;font-size:12px}
        .back-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--blue);box-shadow:var(--shadow);display:none}
        .back-top.show{display:block}
        @media(max-width:991px){
            .command-search{width:155px}.matrix{grid-template-columns:1fr 1fr}.entry-card.large{grid-row:auto;grid-column:span 2}
        }
        @media(max-width:767px){
            .navbar{min-height:68px}.brand{font-size:15px}.brand-mark{width:31px;height:31px}
            .hero{padding:52px 0 20px}h1{font-size:42px}.hero-copy{font-size:15px}
            .hero-board{margin-top:30px}.section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:14px}
            .matrix{display:flex;flex-direction:column}.entry-card,.entry-card.large{min-height:170px}
            .compare-wrap{grid-template-columns:1fr}.lead-form{padding:25px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:span 2}
            .info-items{display:grid;grid-template-columns:1fr 1fr}
        }
        @media(max-width:520px){
            .hero-actions .btn-main,.hero-actions .btn-outline{width:100%}
            .metric-grid{gap:8px}.metric{padding:13px}.metric b{font-size:20px}
            .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
            .copyright{display:block}.copyright span{display:block;margin-top:7px}
        }

/* roulang page: category2 */
:root{
            --blue:#2563eb;
            --blue-dark:#1746ad;
            --blue-soft:#eaf2ff;
            --ice:#eff8fb;
            --ink:#17233d;
            --muted:#68758c;
            --line:#dce5f0;
            --paper:#ffffff;
            --bg:#f7faff;
            --coral:#e67c68;
            --radius:18px;
            --shadow:0 14px 38px rgba(28,64,120,.09);
            --shadow-hover:0 18px 42px rgba(28,64,120,.15);
        }
        *{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",sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.2s ease}
        button,input,select{font:inherit}
        button{cursor:pointer}
        .container{max-width:1220px}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .navbar{min-height:76px;padding:13px 0}
        .brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
        .brand-mark{width:35px;height:35px;display:grid;place-items:center;border-radius:11px;background:var(--blue-soft);color:var(--blue);font-size:17px}
        .nav-link{position:relative;color:#63718a;font-size:14px;font-weight:650;padding:12px 13px!important}
        .nav-link:hover,.nav-link.active{color:var(--blue)}
        .nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--blue);border-radius:2px}
        .navbar-toggler{padding:8px}
        .navbar-toggler-icon{background-image:var(--bs-navbar-toggler-icon-bg)}
        .command-search{display:flex;align-items:center;gap:8px;width:155px;height:42px;padding:0 11px;border:1px solid var(--line);border-radius:12px;background:#f5f8fc;color:#8a96a9}
        .command-search input{width:100%;border:0;outline:0;background:transparent;color:var(--ink);font-size:13px;min-width:0}
        .keycap{font-size:10px;white-space:nowrap;color:#8a96a9}
        .btn-main,.btn-outline{min-height:44px;border-radius:11px;padding:10px 19px;font-size:14px;font-weight:750;transition:.2s ease;display:inline-flex;align-items:center;justify-content:center}
        .btn-main{background:var(--blue);border:1px solid var(--blue);color:white;box-shadow:0 7px 16px rgba(37,99,235,.18)}
        .btn-main:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff;transform:translateY(-2px);box-shadow:0 11px 22px rgba(37,99,235,.24)}
        .btn-outline{background:#fff;border:1px solid #b9cce7;color:var(--blue)}
        .btn-outline:hover{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-dark);transform:translateY(-2px)}
        .breadcrumb-wrap{padding-top:28px}
        .breadcrumb{margin:0;font-size:13px;color:var(--muted)}
        .breadcrumb-item a{color:var(--blue)}
        .category-hero{padding:34px 0 42px}
        .hero-panel{position:relative;overflow:hidden;padding:42px 46px;border:1px solid #cbdcf2;border-radius:24px;background:linear-gradient(115deg,#edf5ff 0%,#f8fbff 68%);box-shadow:var(--shadow)}
        .hero-panel:after{content:"";position:absolute;width:250px;height:250px;right:-75px;top:-105px;border:28px solid rgba(37,99,235,.08);border-radius:50%}
        .eyebrow,.section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
        .eyebrow{display:inline-flex;align-items:center;gap:8px}
        .eyebrow:before{content:"";width:22px;height:2px;background:var(--coral)}
        h1{font-size:clamp(32px,4vw,52px);line-height:1.18;letter-spacing:-.045em;margin:14px 0 16px;font-weight:850}
        .hero-panel p{max-width:680px;color:var(--muted);font-size:16px;margin:0}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
        .hero-stats{position:relative;z-index:1;display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
        .stat-pill{padding:10px 14px;background:#fff;border:1px solid #d5e2f2;border-radius:12px;font-size:12px;color:var(--muted)}
        .stat-pill strong{display:block;color:var(--ink);font-size:18px;line-height:1.2}
        .browse-section{padding:20px 0 82px}
        .section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:25px}
        .section-head h2{font-size:30px;line-height:1.25;margin:8px 0 0;font-weight:820;letter-spacing:-.03em}
        .section-intro{max-width:500px;color:var(--muted);font-size:14px;margin:0}
        .filter-panel{height:100%;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
        .filter-panel h3{font-size:17px;font-weight:800;margin:0 0 5px}
        .filter-panel>p{color:var(--muted);font-size:13px;margin:0 0 22px}
        .form-label{font-size:13px;font-weight:750;margin-bottom:7px}
        .form-control,.form-select{min-height:47px;border:1px solid #cbd9e9;border-radius:10px;background:#fff;color:var(--ink);font-size:14px}
        .form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
        .filter-group{padding:18px 0;border-top:1px solid var(--line)}
        .filter-group:first-of-type{border-top:0;padding-top:0}
        .filter-group-title{font-size:12px;font-weight:800;color:var(--muted);margin-bottom:10px}
        .choice-list{display:grid;gap:9px}
        .choice-list label{display:flex;align-items:center;gap:9px;color:#55647c;font-size:13px}
        .choice-list input{accent-color:var(--blue);width:16px;height:16px}
        .filter-actions{display:flex;gap:9px;margin-top:20px}
        .filter-actions button{flex:1}
        .result-shell{padding-left:15px}
        .result-top{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:17px 20px;margin-bottom:14px;border:1px solid var(--line);border-radius:15px;background:#fff}
        .result-top strong{font-size:14px}
        .result-top span{font-size:12px;color:var(--muted)}
        .result-list{display:grid;gap:12px}
        .result-item{display:grid;grid-template-columns:112px minmax(0,1fr) auto;align-items:center;gap:20px;padding:17px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 8px 24px rgba(28,64,120,.05);transition:.2s ease}
        .result-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#b9cfee}
        .cover{height:92px;border-radius:12px;background:linear-gradient(145deg,#e8f1ff,#dcecf3);display:grid;place-items:center;color:var(--blue);font-size:25px;font-weight:850;letter-spacing:.04em}
        .result-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}
        .badge-soft{padding:4px 9px;border-radius:7px;font-size:11px;background:var(--blue-soft);border-color:#cbdcf2;color:var(--blue)}
        .badge-coral{background:#fff3ef;border-color:#f2c9bf;color:#bd6655}
        .result-item h3{font-size:17px;margin:0 0 5px;font-weight:800}
        .result-item p{color:var(--muted);font-size:13px;margin:0;line-height:1.55}
        .item-info{text-align:right;white-space:nowrap}
        .item-info b{display:block;color:var(--ink);font-size:13px}
        .item-info span{display:block;color:var(--muted);font-size:11px;margin:5px 0 10px}
        .small-btn{display:inline-flex;min-height:38px;padding:7px 13px;border:1px solid #b9cce7;border-radius:9px;color:var(--blue);font-size:12px;font-weight:750;background:#fff}
        .small-btn:hover{background:var(--blue-soft);border-color:var(--blue)}
        .note-bar{display:flex;gap:10px;align-items:flex-start;margin-top:18px;padding:14px 16px;border-radius:12px;background:var(--ice);color:var(--muted);font-size:12px}
        .note-bar strong{color:var(--ink)}
        .related-section{padding:70px 0;background:#fff;border-top:1px solid var(--line)}
        .related-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .related-card{padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg)}
        .related-card h3{font-size:21px;margin:0 0 9px;font-weight:800}
        .related-card p{font-size:13px;color:var(--muted);margin:0 0 17px}
        .tag-row{display:flex;gap:8px;flex-wrap:wrap}
        .chip{display:inline-flex;align-items:center;border:1px solid #cbdcf2;background:#fff;border-radius:30px;color:#536782;padding:6px 12px;font-size:12px;font-weight:650}
        .chip:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
        .faq-section{padding:70px 0}
        .faq-shell{max-width:850px;margin:auto}
        .accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:10px;background:#fff}
        .accordion-button{font-weight:750;color:var(--ink);background:#fff;padding:19px 22px;box-shadow:none!important}
        .accordion-button:not(.collapsed){color:var(--blue);background:var(--blue-soft)}
        .accordion-body{color:var(--muted);font-size:14px;padding:0 22px 20px;background:var(--blue-soft)}
        footer{padding:48px 0 25px;background:#fff;border-top:1px solid var(--line)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
        .footer-brand p{max-width:300px;color:var(--muted);font-size:13px;margin-top:14px}
        footer h4{font-size:13px;margin:0 0 14px}
        .footer-links{display:grid;gap:9px;color:var(--muted);font-size:13px}
        .footer-links a:hover{color:var(--blue)}
        .copyright{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:38px;padding-top:18px;border-top:1px solid var(--line);color:#8a96a8;font-size:12px}
        .back-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:1px solid #cbdcf2;border-radius:12px;background:#fff;color:var(--blue);box-shadow:var(--shadow);display:none;z-index:20}
        .back-top.show{display:block}
        :focus-visible{outline:3px solid rgba(37,99,235,.32);outline-offset:3px}
        @media(max-width:991px){
            .command-search{width:100%;max-width:none}
            .result-shell{padding-left:0;margin-top:24px}
            .hero-panel{padding:34px 28px}
        }
        @media(max-width:767px){
            .navbar{min-height:68px}
            .brand{font-size:15px}
            .brand-mark{width:32px;height:32px}
            .navbar-collapse{padding:12px 0 5px}
            .navbar-nav{border-top:1px solid var(--line);padding-top:8px}
            .category-hero{padding:22px 0 28px}
            .hero-panel{padding:29px 22px;border-radius:18px}
            h1{font-size:34px}
            .hero-panel p{font-size:14px}
            .section-head{display:block}
            .section-intro{margin-top:12px}
            .browse-section,.faq-section{padding-bottom:58px}
            .result-top{align-items:flex-start;flex-direction:column}
            .result-item{grid-template-columns:78px minmax(0,1fr);gap:14px}
            .cover{height:78px}
            .item-info{grid-column:2;text-align:left}
            .item-info span{display:inline-block;margin:4px 10px 8px 0}
            .related-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-brand{grid-column:1/-1}
        }
        @media(max-width:520px){
            .container{padding-left:18px;padding-right:18px}
            .hero-actions .btn-main,.hero-actions .btn-outline{width:100%}
            .hero-stats{display:grid;grid-template-columns:1fr 1fr}
            .stat-pill{padding:9px 11px}
            .result-item h3{font-size:15px}
            .result-item p{font-size:12px}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:7px}
        }

/* roulang page: category1 */
:root{
 --blue:#2563eb;
 --blue-dark:#1746ad;
 --blue-soft:#eaf2ff;
 --ice:#eff8fb;
 --ink:#17233d;
 --muted:#68758c;
 --line:#dce5f0;
 --paper:#ffffff;
 --bg:#f7faff;
 --coral:#e67c68;
 --success:#178a73;
 --radius:18px;
 --radius-sm:12px;
 --shadow:0 14px 38px rgba(28,64,120,.09);
 --shadow-hover:0 18px 42px rgba(28,64,120,.15);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 overflow-x:hidden;
 background:var(--bg);
 color:var(--ink);
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 line-height:1.7;
 -webkit-font-smoothing:antialiased;
}
body,button,input,select,textarea{font:inherit}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
button{transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
img{max-width:100%;display:block}
h1,h2,h3,h4,p{overflow-wrap:anywhere}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.025em}
.container{max-width:1220px}
::selection{background:#cfe0ff;color:var(--blue-dark)}
:focus-visible{outline:3px solid rgba(37,99,235,.28);outline-offset:3px}

.site-header{
 position:sticky;
 top:0;
 z-index:50;
 background:rgba(255,255,255,.94);
 border-bottom:1px solid var(--line);
 backdrop-filter:blur(12px);
}
.navbar{min-height:76px;padding:13px 0}
.brand{
 display:flex;
 align-items:center;
 gap:10px;
 color:var(--ink);
 font-size:18px;
 font-weight:800;
 letter-spacing:-.02em;
 white-space:nowrap;
}
.brand:hover{color:var(--blue)}
.brand-mark{
 width:35px;
 height:35px;
 display:grid;
 place-items:center;
 flex:0 0 auto;
 border-radius:11px;
 background:var(--blue-soft);
 color:var(--blue);
 font-size:17px;
}
.nav-link{
 position:relative;
 color:#63718a;
 font-size:14px;
 font-weight:650;
 padding:12px 13px!important;
}
.nav-link:hover,.nav-link.active{color:var(--blue)}
.nav-link.active:after{
 content:"";
 position:absolute;
 left:13px;
 right:13px;
 bottom:2px;
 height:2px;
 background:var(--blue);
 border-radius:2px;
}
.command-search{
 display:flex;
 align-items:center;
 gap:8px;
 width:155px;
 height:42px;
 padding:0 11px;
 margin:0;
 border:1px solid var(--line);
 border-radius:12px;
 background:#f5f8fc;
 color:#8a96a9;
 transition:.2s ease;
}
.command-search:focus-within{
 width:190px;
 border-color:var(--blue);
 background:#fff;
 box-shadow:0 0 0 4px rgba(37,99,235,.1);
}
.command-search input{
 width:100%;
 min-width:0;
 border:0;
 outline:0;
 background:transparent;
 color:var(--ink);
 font-size:13px;
}
.command-search input::placeholder{color:#8a96a9}
.keycap{
 padding:1px 5px;
 border:1px solid #d5dfeb;
 border-radius:5px;
 background:#fff;
 color:#8793a5;
 font-size:9px;
 white-space:nowrap;
}
.btn-main,.btn-outline{
 min-height:44px;
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 border-radius:11px;
 padding:10px 19px;
 font-size:14px;
 font-weight:750;
 line-height:1.2;
 transition:.2s ease;
}
.btn-main{
 background:var(--blue);
 border:1px solid var(--blue);
 color:#fff;
 box-shadow:0 7px 16px rgba(37,99,235,.18);
}
.btn-main:hover,.btn-main:focus{
 background:var(--blue-dark);
 border-color:var(--blue-dark);
 color:#fff;
 transform:translateY(-2px);
 box-shadow:0 11px 22px rgba(37,99,235,.24);
}
.btn-main:active,.btn-outline:active{transform:translateY(0)}
.btn-outline{
 background:#fff;
 border:1px solid #b9cce7;
 color:var(--blue);
}
.btn-outline:hover,.btn-outline:focus{
 background:var(--blue-soft);
 border-color:var(--blue);
 color:var(--blue-dark);
 transform:translateY(-2px);
}

.breadcrumb-wrap{padding:24px 0 0}
.breadcrumb{
 margin:0;
 color:var(--muted);
 font-size:13px;
}
.breadcrumb-item a:hover{color:var(--blue)}
.breadcrumb-item.active{color:#8a96a9}
.breadcrumb-item+.breadcrumb-item:before{color:#a7b1c0}

.category-hero{padding:24px 0 28px}
.category-banner{
 position:relative;
 overflow:hidden;
 padding:46px 48px;
 border:1px solid #cfdef2;
 border-radius:24px;
 background:linear-gradient(115deg,#edf5ff 0%,#f8fbff 62%,#eef9fb 100%);
 box-shadow:var(--shadow);
}
.category-banner:before,.category-banner:after{
 content:"";
 position:absolute;
 border-radius:50%;
 pointer-events:none;
}
.category-banner:before{
 width:230px;
 height:230px;
 right:-72px;
 top:-115px;
 border:42px solid rgba(37,99,235,.06);
}
.category-banner:after{
 width:110px;
 height:110px;
 right:190px;
 bottom:-72px;
 background:rgba(230,124,104,.08);
}
.eyebrow{
 display:inline-flex;
 align-items:center;
 gap:8px;
 color:var(--blue);
 font-size:12px;
 font-weight:800;
 letter-spacing:.08em;
}
.eyebrow:before{
 content:"";
 width:22px;
 height:2px;
 background:var(--coral);
}
.category-banner h1{
 position:relative;
 max-width:780px;
 margin:14px 0 14px;
 font-size:clamp(32px,4.2vw,52px);
 font-weight:850;
 line-height:1.16;
}
.hero-copy{
 position:relative;
 max-width:720px;
 margin:0;
 color:var(--muted);
 font-size:16px;
}
.hero-meta{
 position:relative;
 display:flex;
 flex-wrap:wrap;
 gap:10px;
 margin-top:25px;
}
.meta-pill,.badge-soft,.chip{
 display:inline-flex;
 align-items:center;
 gap:7px;
 border:1px solid #cbdcf2;
 border-radius:30px;
 background:#fff;
 color:#536782;
 padding:6px 12px;
 font-size:12px;
 font-weight:650;
}
.status-dot{
 width:7px;
 height:7px;
 border-radius:50%;
 background:var(--success);
 box-shadow:0 0 0 4px rgba(23,138,115,.1);
}

.section{padding:76px 0}
.section-sm{padding:30px 0 72px}
.section-head{
 display:flex;
 justify-content:space-between;
 align-items:end;
 gap:30px;
 margin-bottom:28px;
}
.section-head h2{
 margin:5px 0 0;
 font-size:clamp(27px,3vw,38px);
 font-weight:830;
}
.section-kicker{
 color:var(--blue);
 font-size:12px;
 font-weight:800;
 letter-spacing:.08em;
}
.section-intro{
 max-width:570px;
 margin:0;
 color:var(--muted);
 font-size:15px;
}

.filter-shell{
 position:relative;
 z-index:4;
 margin-top:-4px;
 padding:18px;
 border:1px solid var(--line);
 border-radius:18px;
 background:#fff;
 box-shadow:var(--shadow);
}
.filter-grid{
 display:grid;
 grid-template-columns:minmax(220px,1.8fr) minmax(145px,.8fr) minmax(145px,.8fr) auto;
 gap:12px;
 align-items:end;
}
.form-label{
 margin-bottom:7px;
 color:#42516a;
 font-size:12px;
 font-weight:750;
}
.form-control,.form-select{
 min-height:47px;
 border:1px solid #cbd9e9;
 border-radius:10px;
 background:#fff;
 color:var(--ink);
 font-size:14px;
}
.form-control::placeholder{color:#919cad}
.form-control:focus,.form-select:focus{
 border-color:var(--blue);
 box-shadow:0 0 0 4px rgba(37,99,235,.12);
}
.filter-tags{
 display:flex;
 align-items:center;
 gap:8px;
 overflow-x:auto;
 margin-top:15px;
 padding:2px 0 3px;
 scrollbar-width:thin;
}
.filter-chip{
 min-height:36px;
 flex:0 0 auto;
 padding:6px 13px;
 border:1px solid var(--line);
 border-radius:20px;
 background:#f8faff;
 color:#5f6e85;
 font-size:12px;
 font-weight:700;
}
.filter-chip:hover,.filter-chip.active{
 border-color:#b8cff1;
 background:var(--blue-soft);
 color:var(--blue);
}
.result-summary{
 display:flex;
 justify-content:space-between;
 gap:16px;
 align-items:center;
 margin:26px 0 16px;
 color:var(--muted);
 font-size:13px;
}
.result-summary strong{color:var(--ink)}

.content-layout{
 display:grid;
 grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);
 gap:18px;
 align-items:start;
}
.content-feature,.content-card{
 overflow:hidden;
 border:1px solid var(--line);
 border-radius:var(--radius);
 background:#fff;
 box-shadow:var(--shadow);
 transition:.22s ease;
}
.content-feature:hover,.content-card:hover{
 transform:translateY(-3px);
 border-color:#c5d7ef;
 box-shadow:var(--shadow-hover);
}
.content-feature{
 min-height:100%;
 display:grid;
 grid-template-columns:minmax(230px,.88fr) 1.12fr;
}
.abstract-cover{
 position:relative;
 min-height:285px;
 overflow:hidden;
 background:
  linear-gradient(135deg,rgba(37,99,235,.96),rgba(65,129,225,.75)),
  #dceaff;
}
.abstract-cover:before{
 content:"";
 position:absolute;
 width:230px;
 height:230px;
 left:-70px;
 bottom:-65px;
 border:35px solid rgba(255,255,255,.16);
 border-radius:50%;
}
.abstract-cover:after{
 content:"";
 position:absolute;
 width:150px;
 height:150px;
 right:-35px;
 top:-25px;
 border-radius:28px;
 background:rgba(255,255,255,.13);
 transform:rotate(24deg);
}
.cover-number{
 position:absolute;
 top:20px;
 left:20px;
 z-index:2;
 color:rgba(255,255,255,.88);
 font-size:13px;
 font-weight:800;
 letter-spacing:.08em;
}
.play-mark{
 position:absolute;
 z-index:2;
 left:50%;
 top:50%;
 width:58px;
 height:58px;
 display:grid;
 place-items:center;
 border:1px solid rgba(255,255,255,.6);
 border-radius:50%;
 background:rgba(255,255,255,.18);
 color:#fff;
 font-size:20px;
 transform:translate(-50%,-50%);
 backdrop-filter:blur(7px);
}
.cover-caption{
 position:absolute;
 z-index:2;
 left:20px;
 right:20px;
 bottom:18px;
 color:#fff;
 font-size:12px;
 font-weight:700;
}
.content-body{padding:28px}
.content-body h3{
 margin:12px 0 10px;
 font-size:25px;
 font-weight:820;
}
.content-body p{
 margin:0 0 19px;
 color:var(--muted);
 font-size:14px;
}
.card-meta{
 display:flex;
 flex-wrap:wrap;
 gap:8px 15px;
 margin-bottom:20px;
 color:#78859a;
 font-size:12px;
}
.card-meta span{display:inline-flex;align-items:center;gap:6px}
.card-meta span:before{
 content:"";
 width:5px;
 height:5px;
 border-radius:50%;
 background:#97b2d6;
}
.card-actions{
 display:flex;
 flex-wrap:wrap;
 gap:10px;
 align-items:center;
}
.stack-list{display:grid;gap:18px}
.content-card{display:grid;grid-template-columns:124px 1fr;min-height:152px}
.mini-cover{
 position:relative;
 display:grid;
 place-items:center;
 min-height:152px;
 color:var(--blue);
 background:linear-gradient(145deg,#e8f1ff,#f4f8ff);
 font-size:24px;
 font-weight:850;
}
.mini-cover.ice{color:#147a82;background:linear-gradient(145deg,#e7f8fa,#f4fbfc)}
.mini-cover.coral{color:#b45c4c;background:linear-gradient(145deg,#fff0ed,#fff8f6)}
.mini-cover:after{
 content:"";
 position:absolute;
 width:54px;
 height:54px;
 border:1px solid currentColor;
 border-radius:50%;
 opacity:.16;
}
.compact-body{padding:18px}
.compact-body h3{
 margin:8px 0 5px;
 font-size:17px;
 font-weight:800;
}
.compact-body p{
 display:-webkit-box;
 margin:0 0 9px;
 overflow:hidden;
 color:var(--muted);
 font-size:12px;
 line-height:1.6;
 -webkit-line-clamp:2;
 -webkit-box-orient:vertical;
}
.text-link{
 display:inline-flex;
 align-items:center;
 gap:5px;
 color:var(--blue);
 font-size:12px;
 font-weight:800;
}
.text-link:hover{color:var(--blue-dark);gap:8px}
.more-row{
 display:flex;
 justify-content:center;
 margin-top:26px;
}
.empty-state{
 display:none;
 padding:45px 24px;
 border:1px dashed #b9cde7;
 border-radius:18px;
 background:#fff;
 text-align:center;
}
.empty-state.show{display:block}
.empty-icon{
 width:54px;
 height:54px;
 display:grid;
 place-items:center;
 margin:0 auto 14px;
 border-radius:16px;
 background:var(--blue-soft);
 color:var(--blue);
 font-size:23px;
}
.empty-state h3{font-size:20px}
.empty-state p{color:var(--muted);font-size:14px}

.benefit-wrap{
 padding:34px;
 border:1px solid var(--line);
 border-radius:24px;
 background:var(--ice);
}
.benefit-grid{
 display:grid;
 grid-template-columns:1.2fr .8fr .8fr;
 gap:16px;
 margin-top:25px;
}
.benefit-card{
 padding:24px;
 border:1px solid rgba(177,205,219,.8);
 border-radius:16px;
 background:rgba(255,255,255,.85);
}
.benefit-card.primary{background:#fff;box-shadow:var(--shadow)}
.icon-box{
 width:42px;
 height:42px;
 display:grid;
 place-items:center;
 border-radius:12px;
 background:var(--blue-soft);
 color:var(--blue);
 font-weight:850;
}
.benefit-card h3{margin:18px 0 7px;font-size:18px;font-weight:800}
.benefit-card p{margin:0;color:var(--muted);font-size:13px}

.path-grid{
 display:grid;
 grid-template-columns:1fr 1fr;
 gap:20px;
}
.path-panel{
 position:relative;
 overflow:hidden;
 min-height:290px;
 padding:32px;
 border:1px solid var(--line);
 border-radius:22px;
 background:#fff;
 box-shadow:var(--shadow);
}
.path-panel.highlight{
 border-color:#c8dcfa;
 background:var(--blue-soft);
}
.path-label{
 display:inline-flex;
 padding:5px 10px;
 border-radius:20px;
 background:#fff;
 color:var(--blue);
 font-size:11px;
 font-weight:800;
}
.path-panel h3{margin:20px 0 8px;font-size:26px;font-weight:830}
.path-panel>p{max-width:460px;color:var(--muted);font-size:14px}
.path-list{list-style:none;margin:22px 0 25px;padding:0}
.path-list li{
 display:flex;
 gap:10px;
 padding:9px 0;
 border-bottom:1px solid rgba(124,153,191,.18);
 color:#495a73;
 font-size:13px;
}
.path-list li:last-child{border-bottom:0}
.check{
 width:20px;
 height:20px;
 display:grid;
 place-items:center;
 flex:0 0 auto;
 border-radius:50%;
 background:#fff;
 color:var(--blue);
 font-size:11px;
 font-weight:900;
}

.faq-shell{max-width:880px;margin:auto}
.accordion-item{
 overflow:hidden;
 margin-bottom:10px;
 border:1px solid var(--line)!important;
 border-radius:13px!important;
 background:#fff;
}
.accordion-button{
 padding:19px 22px;
 background:#fff;
 color:var(--ink);
 font-weight:750;
 box-shadow:none!important;
}
.accordion-button:hover{color:var(--blue)}
.accordion-button:not(.collapsed){
 border-left:3px solid var(--blue);
 background:var(--blue-soft);
 color:var(--blue);
}
.accordion-button:focus{box-shadow:0 0 0 4px rgba(37,99,235,.1)!important}
.accordion-body{
 padding:0 22px 20px;
 background:var(--blue-soft);
 color:var(--muted);
 font-size:14px;
}

.lead-form{
 padding:38px;
 border:1px solid #cbdcf2;
 border-radius:24px;
 background:#edf5ff;
 box-shadow:var(--shadow);
}
.lead-form h2{
 margin:7px 0 12px;
 font-size:clamp(27px,3.2vw,38px);
 font-weight:830;
}
.lead-form p{color:var(--muted);font-size:14px}
.form-note{color:var(--muted);font-size:12px}
.form-message{
 display:none;
 margin-top:14px;
 padding:11px 13px;
 border:1px solid #bcd8cf;
 border-radius:10px;
 background:#f0faf7;
 color:#176c5b;
 font-size:13px;
}
.form-message.show{display:block}

footer{
 padding:48px 0 25px;
 background:#fff;
 border-top:1px solid var(--line);
}
.footer-grid{
 display:grid;
 grid-template-columns:1.5fr 1fr 1fr;
 gap:40px;
}
.footer-brand p{
 max-width:300px;
 margin-top:14px;
 color:var(--muted);
 font-size:13px;
}
footer h4{margin:0 0 14px;font-size:13px;font-weight:800}
.footer-links{display:grid;gap:9px;color:var(--muted);font-size:13px}
.footer-links a:hover{color:var(--blue);transform:translateX(2px)}
.copyright{
 display:flex;
 justify-content:space-between;
 gap:20px;
 flex-wrap:wrap;
 margin-top:38px;
 padding-top:18px;
 border-top:1px solid var(--line);
 color:#8a96a8;
 font-size:12px;
}
.back-top{
 position:fixed;
 right:20px;
 bottom:20px;
 z-index:30;
 width:44px;
 height:44px;
 display:grid;
 place-items:center;
 border:1px solid #c9d9ed;
 border-radius:13px;
 background:#fff;
 color:var(--blue);
 box-shadow:var(--shadow);
 opacity:0;
 visibility:hidden;
 transform:translateY(10px);
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--blue);color:#fff;transform:translateY(-2px)}

@media (max-width:1199.98px){
 .command-search{width:145px}
 .navbar .btn-main{padding-inline:14px}
}
@media (max-width:991.98px){
 .navbar{min-height:70px}
 .navbar-collapse{
  margin-top:12px;
  padding:16px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
  box-shadow:var(--shadow);
 }
 .nav-link{padding:12px 8px!important}
 .nav-link.active:after{left:8px;right:auto;width:30px}
 .command-search,.command-search:focus-within{width:min(100%,310px)}
 .category-banner{padding:38px 32px}
 .filter-grid{grid-template-columns:1fr 1fr}
 .filter-grid .search-field{grid-column:span 2}
 .content-layout{grid-template-columns:1fr}
 .stack-list{grid-template-columns:1fr 1fr}
 .benefit-grid{grid-template-columns:1fr 1fr}
 .benefit-card.primary{grid-column:span 2}
}
@media (max-width:767.98px){
 .section{padding:58px 0}
 .section-sm{padding:24px 0 58px}
 .breadcrumb-wrap{padding-top:17px}
 .category-hero{padding-top:18px}
 .category-banner{padding:31px 23px;border-radius:20px}
 .category-banner h1{font-size:34px}
 .hero-copy{font-size:14px}
 .section-head{display:block;margin-bottom:22px}
 .section-intro{margin-top:10px}
 .filter-shell{padding:15px}
 .filter-grid{grid-template-columns:1fr}
 .filter-grid .search-field{grid-column:auto}
 .content-feature{grid-template-columns:1fr}
 .abstract-cover{min-height:220px}
 .stack-list{grid-template-columns:1fr}
 .benefit-wrap{padding:24px 18px}
 .benefit-grid{grid-template-columns:1fr}
 .benefit-card.primary{grid-column:auto}
 .path-grid{grid-template-columns:1fr}
 .path-panel{min-height:auto;padding:25px}
 .lead-form{padding:27px 20px}
 .footer-grid{grid-template-columns:1.3fr 1fr}
 .footer-brand{grid-column:span 2}
}
@media (max-width:519.98px){
 .container{padding-left:17px;padding-right:17px}
 .brand{font-size:15px}
 .brand-mark{width:32px;height:32px}
 .category-banner h1{font-size:29px}
 .hero-meta{display:grid}
 .meta-pill{justify-content:flex-start}
 .result-summary{align-items:flex-start;flex-direction:column;gap:3px}
 .content-body{padding:22px}
 .content-body h3{font-size:21px}
 .content-card{grid-template-columns:94px 1fr}
 .mini-cover{min-height:155px}
 .compact-body{padding:15px}
 .compact-body h3{font-size:15px}
 .card-actions{display:grid}
 .card-actions .btn-main,.card-actions .btn-outline{width:100%}
 .path-panel h3{font-size:22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
 .footer-brand{grid-column:span 2}
 .copyright{display:grid}
}