/* roulang page: index */
:root{
            --yellow:#efb52d;--yellow-deep:#d99618;--ink:#20251f;--forest:#31483b;
            --cream:#f7f3e8;--paper:#fffdf7;--muted:#72786f;--line:#ddd8c9;
            --green:#6f8d70;--radius:16px;--shadow:0 14px 35px rgba(48,48,34,.08);
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;line-height:1.78}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        img{max-width:100%;display:block}
        button,input,textarea{font:inherit}
        .container{max-width:1180px;margin:auto;padding:0 22px}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(247,243,232,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(221,216,201,.85)}
        .navbar{min-height:76px}
        .brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;letter-spacing:.02em}
        .brand-mark{width:34px;height:34px;display:grid;place-items:center;background:var(--yellow);color:var(--ink);border-radius:10px 4px 10px 4px;font-weight:900}
        .nav-link{color:#4e554b!important;padding:10px 15px!important;font-size:14px;font-weight:700;position:relative}
        .nav-link:hover,.nav-link.active{color:var(--ink)!important}
        .nav-link.active:after{content:"";position:absolute;left:15px;right:15px;bottom:3px;height:3px;background:var(--yellow);border-radius:4px}
        .nav-action{border:1px solid var(--ink);padding:10px 16px;border-radius:9px;font-size:13px;font-weight:700}
        .nav-action:hover{background:var(--ink);color:#fff}
        .hero{padding:74px 0 68px;position:relative;overflow:hidden;background:linear-gradient(90deg,rgba(247,243,232,.98) 20%,rgba(247,243,232,.78)),url('/assets/images/771d0ad6c695d1c0.jpg') center/cover}
        .hero:after{content:"";position:absolute;right:8%;top:20%;width:180px;height:180px;border:1px solid rgba(49,72,59,.2);border-radius:50%;box-shadow:0 0 0 24px rgba(49,72,59,.04),0 0 0 48px rgba(49,72,59,.03)}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:15px}
        .eyebrow:before{content:"";width:25px;height:3px;background:var(--yellow);border-radius:2px}
        h1,h2,h3{line-height:1.25;letter-spacing:-.035em}
        h1{font-size:clamp(38px,5vw,68px);max-width:720px;margin:0 0 22px;font-weight:900}
        h1 strong{color:var(--yellow-deep)}
        .hero-copy{max-width:680px;color:#596057;font-size:17px;margin-bottom:28px}
        .btn-main,.btn-sub{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:9px;font-weight:800;font-size:14px;margin:4px 8px 4px 0}
        .btn-main{background:var(--yellow);color:var(--ink);box-shadow:0 8px 18px rgba(217,150,24,.2)}
        .btn-main:hover{background:var(--yellow-deep);transform:translateY(-2px)}
        .btn-sub{border:1px solid var(--ink);color:var(--ink)}
        .btn-sub:hover{background:var(--ink);color:#fff}
        .hero-points{display:flex;gap:22px;margin-top:32px;flex-wrap:wrap}
        .hero-point{font-size:13px;color:var(--muted);padding-left:14px;border-left:2px solid var(--yellow)}
        section{padding:78px 0;border-bottom:1px solid var(--line)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
        .section-head h2{font-size:clamp(26px,3vw,39px);margin:0;max-width:680px}
        .section-head p{max-width:510px;margin:0;color:var(--muted);font-size:14px}
        .dark-section{background:var(--ink);color:#fff}
        .dark-section .section-head p{color:#b8c0b5}
        .data-strip{display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow)}
        .data-item{padding:25px;border-right:1px solid var(--line);position:relative}
        .data-item:last-child{border:0}.data-value{font-size:35px;font-weight:900;color:var(--forest)}.data-label{font-size:13px;color:var(--muted)}
        .data-line{height:4px;background:#e5dfcf;margin-top:17px;overflow:hidden}.data-line span{display:block;height:100%;background:var(--yellow)}
        .explore-panel{display:grid;grid-template-columns:1fr 2fr;gap:25px;align-items:stretch}
        .feature-panel{padding:30px;background:var(--forest);color:#fff;border-radius:var(--radius);position:relative;overflow:hidden}
        .feature-panel:after{content:"黄果视频";position:absolute;right:-15px;bottom:8px;font-size:64px;color:rgba(255,255,255,.06);font-weight:900}
        .feature-panel h3{font-size:25px}.feature-panel p{color:#d4ded4;font-size:14px}
        .panel-link{display:inline-block;margin-top:18px;color:var(--yellow);font-weight:800;font-size:14px}
        .video-track{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .video-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
        .video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--yellow)}
        .cover{height:145px;position:relative;background-size:cover;background-position:center}
        .cover.one{background-image:linear-gradient(135deg,rgba(32,37,31,.1),rgba(32,37,31,.4)),url('/assets/images/1de6fec24336c80e.jpg')}
        .cover.two{background-image:linear-gradient(135deg,rgba(32,37,31,.1),rgba(32,37,31,.4)),url('/assets/images/180f922568650d48.jpg')}
        .cover.three{background-image:linear-gradient(135deg,rgba(32,37,31,.1),rgba(32,37,31,.4)),url('/assets/images/543a144e31dc5e44.jpg')}
        .play{position:absolute;left:15px;bottom:14px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--yellow);font-size:14px}
        .duration{position:absolute;right:12px;bottom:12px;background:rgba(32,37,31,.78);color:#fff;padding:3px 7px;border-radius:5px;font-size:11px}
        .video-body{padding:17px}.tag{display:inline-block;color:var(--green);font-size:11px;font-weight:800;margin-bottom:7px}.video-body h3{font-size:17px;margin:0 0 5px}.video-body p{font-size:12px;color:var(--muted);margin:0}
        .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
        .matrix-item{background:var(--paper);border:1px solid var(--line);padding:22px 18px;min-height:135px;transition:.25s}
        .matrix-item:nth-child(2),.matrix-item:nth-child(5){transform:translateY(18px)}
        .matrix-item:hover{border-color:var(--yellow);box-shadow:var(--shadow);transform:translateY(-3px)}
        .matrix-no{font-size:12px;color:var(--yellow-deep);font-weight:900}.matrix-item h3{font-size:18px;margin:13px 0 6px}.matrix-item p{font-size:13px;color:var(--muted);margin:0}
        .path-wrap{display:flex;gap:0;overflow:hidden}.path-step{flex:1;position:relative;padding:24px 25px 24px 0;border-top:2px solid var(--yellow)}.path-step:not(:last-child):after{content:"→";position:absolute;right:17px;top:15px;color:var(--yellow-deep);font-size:24px}.path-step b{display:block;font-size:16px;margin-bottom:6px}.path-step span{font-size:13px;color:var(--muted)}
        .compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}.compare-box{padding:28px;border:1px solid var(--line);background:var(--paper)}.compare-box.active{background:var(--forest);color:#fff;border-color:var(--forest)}.compare-title{display:flex;justify-content:space-between;font-weight:800;margin-bottom:20px}.status{font-size:11px;padding:3px 8px;border-radius:20px;background:#e8e4d8;color:var(--muted)}.active .status{background:var(--yellow);color:var(--ink)}.compare-row{font-size:14px;padding:12px 0;border-bottom:1px solid rgba(221,216,201,.7);display:flex;justify-content:space-between}.compare-row span:last-child{font-weight:800;color:var(--green)}.active .compare-row{border-color:rgba(255,255,255,.15)}.active .compare-row span:last-child{color:var(--yellow)}
        .timeline{position:relative;padding-left:25px;border-left:2px solid var(--yellow)}.timeline-item{position:relative;padding:0 0 27px 27px}.timeline-item:before{content:"";position:absolute;left:-34px;top:5px;width:13px;height:13px;border-radius:50%;background:var(--yellow);border:3px solid var(--ink)}.timeline-item b{font-size:13px;color:var(--yellow)}.timeline-item h3{font-size:20px;margin:5px 0}.timeline-item p{margin:0;color:#bdc7bc;font-size:14px}
        .news-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:25px}.news-feature{min-height:300px;padding:30px;color:#fff;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(0deg,rgba(32,37,31,.9),rgba(32,37,31,.08)),url('/assets/images/fa034802a6ce0bed.jpg') center/cover;border-radius:var(--radius)}.news-feature h3{font-size:28px;margin:10px 0}.news-feature p{font-size:14px;color:#e1e6dc}.news-list{background:var(--paper);border:1px solid var(--line)}.news-item{padding:20px;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-meta{font-size:11px;color:var(--green);font-weight:800}.news-item h3{font-size:17px;margin:5px 0}.news-item p{font-size:13px;color:var(--muted);margin:0}
        .assurance{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.assurance-item{padding:22px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15)}.assurance-item b{display:block;color:var(--yellow);margin-bottom:8px}.assurance-item span{font-size:13px;color:#c1c9bf}
        .quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.quick-item{padding:24px;background:var(--paper);border-left:4px solid var(--yellow);box-shadow:0 5px 18px rgba(48,48,34,.04)}.quick-item b{display:block;font-size:16px;margin-bottom:7px}.quick-item span{font-size:13px;color:var(--muted)}
        .accordion-item{background:var(--paper);border:1px solid var(--line)!important;margin-bottom:10px;border-radius:10px!important;overflow:hidden}.accordion-button{background:var(--paper);color:var(--ink);font-weight:800;box-shadow:none!important}.accordion-button:not(.collapsed){background:#f1e8ce;color:var(--ink)}.accordion-body{font-size:14px;color:var(--muted);padding-top:0}
        .feedback{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px;align-items:start}.feedback-copy h2{font-size:34px}.feedback-copy p{color:var(--muted);font-size:14px}.form-control,.form-select{border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:12px 14px}.form-control:focus,.form-select:focus{border-color:var(--yellow-deep);box-shadow:0 0 0 3px rgba(239,181,45,.18)}
        footer{background:#1b201b;color:#d5ddd2;padding:45px 0 22px}.footer-grid{display:flex;justify-content:space-between;gap:30px}.footer-brand{font-size:19px;font-weight:800;color:#fff}.footer-grid p{font-size:13px;color:#aeb9ac;max-width:360px}.footer-links{display:flex;gap:22px;flex-wrap:wrap;font-size:13px}.footer-links a:hover{color:var(--yellow)}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;font-size:12px;color:#879287}
        :focus-visible{outline:3px solid rgba(239,181,45,.65);outline-offset:3px}
        @media(max-width:992px){.explore-panel,.news-layout,.feedback{grid-template-columns:1fr}.matrix{grid-template-columns:repeat(2,1fr)}.assurance{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:768px){.navbar{min-height:68px}.nav-action{display:none}.data-strip{grid-template-columns:repeat(2,1fr)}.data-item:nth-child(2){border-right:0}.data-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.video-track{grid-template-columns:1fr}.quick-grid{grid-template-columns:1fr}.hero{padding:58px 0}.hero-copy{font-size:15px}.path-wrap{display:block}.path-step{padding:16px 0;border-top:1px solid var(--line);border-left:3px solid var(--yellow);padding-left:15px}.path-step:not(:last-child):after{display:none}.compare{grid-template-columns:1fr}.footer-grid{display:block}}
        @media(max-width:520px){.container{padding:0 16px}section{padding:55px 0}.section-head{display:block}.section-head p{margin-top:13px}.matrix{grid-template-columns:1fr}.matrix-item:nth-child(2),.matrix-item:nth-child(5){transform:none}.assurance{grid-template-columns:1fr}.data-value{font-size:28px}.hero-points{gap:13px}.brand{font-size:16px}.brand-mark{width:30px;height:30px}}

/* roulang page: category1 */
:root{
      --yellow:#efb52d;--yellow-deep:#d99618;--ink:#20251f;--forest:#31483b;
      --cream:#f7f3e8;--paper:#fffdf7;--muted:#72786f;--line:#ddd8c9;
      --green:#6f8d70;--radius:16px;--shadow:0 14px 35px rgba(48,48,34,.08);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;line-height:1.78}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,243,232,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(221,216,201,.85)}
    .navbar{min-height:76px}
    .brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;letter-spacing:.02em}
    .brand-mark{width:34px;height:34px;display:grid;place-items:center;background:var(--yellow);color:var(--ink);border-radius:10px 4px 10px 4px;font-weight:900}
    .navbar-toggler{padding:8px}
    .navbar-toggler-icon{filter:brightness(.25)}
    .nav-link{color:#4e554b!important;padding:10px 15px!important;font-size:14px;font-weight:700;position:relative}
    .nav-link:hover,.nav-link.active{color:var(--ink)!important}
    .nav-link.active:after{content:"";position:absolute;left:15px;right:15px;bottom:3px;height:3px;background:var(--yellow);border-radius:4px}
    .nav-action{border:1px solid var(--ink);padding:10px 16px;border-radius:9px;font-size:13px;font-weight:700}
    .nav-action:hover{background:var(--ink);color:#fff}
    .page-intro{padding:58px 0 48px;background:linear-gradient(90deg,rgba(247,243,232,.98),rgba(247,243,232,.82)),url('/assets/images/1de6fec24336c80e.jpg') center/cover;border-bottom:1px solid var(--line)}
    .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:25px}
    .breadcrumb a:hover{color:var(--forest)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:13px}
    .eyebrow:before{content:"";width:25px;height:3px;background:var(--yellow);border-radius:2px}
    h1,h2,h3,p{overflow-wrap:break-word}
    h1{font-size:clamp(32px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:0 0 18px;font-weight:900}
    .intro-text{max-width:720px;color:#596057;font-size:16px;margin:0}
    section{padding:70px 0;border-bottom:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:clamp(25px,3vw,38px);line-height:1.25;margin:0;max-width:650px}
    .section-head p{max-width:500px;margin:0;color:var(--muted);font-size:14px}
    .filter-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow)}
    .filter-label{font-size:13px;font-weight:800;color:var(--forest);margin-right:4px}
    .filter-chip{border:1px solid var(--line);background:#fffdf8;color:#5f675d;border-radius:8px;padding:9px 15px;font-size:13px;cursor:pointer;transition:.25s}
    .filter-chip:hover,.filter-chip.active{background:var(--yellow);border-color:var(--yellow);color:var(--ink);font-weight:800}
    .content-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px}
    .video-list{background:var(--paper);border:1px solid var(--line)}
    .video-row{display:grid;grid-template-columns:210px 1fr;gap:22px;padding:20px;border-bottom:1px solid var(--line);transition:.25s}
    .video-row:last-child{border-bottom:0}
    .video-row:hover{background:#fff9e9}
    .cover{height:135px;position:relative;overflow:hidden;background:var(--forest)}
    .cover img{width:100%;height:100%;object-fit:cover}
    .cover:after{content:"▶";position:absolute;left:15px;bottom:12px;width:36px;height:36px;display:grid;place-items:center;background:var(--yellow);color:var(--ink);border-radius:50%;font-size:13px}
    .duration{position:absolute;right:10px;bottom:10px;background:rgba(32,37,31,.82);color:#fff;padding:2px 7px;border-radius:4px;font-size:11px}
    .tag{display:inline-block;color:var(--green);font-size:11px;font-weight:800;margin-bottom:6px}
    .video-row h3{font-size:20px;line-height:1.35;margin:0 0 7px}
    .video-row p{font-size:13px;color:var(--muted);margin:0 0 12px}
    .meta{font-size:12px;color:#8a8f85}
    .read-link{display:inline-block;color:var(--forest);font-size:13px;font-weight:800;margin-top:13px}
    .read-link:hover{color:var(--yellow-deep);transform:translateX(3px)}
    .side-panel{background:var(--forest);color:#fff;padding:25px;border-radius:var(--radius);align-self:start;position:sticky;top:105px}
    .side-panel h3{font-size:21px;margin:0 0 10px}
    .side-panel p{font-size:13px;color:#ced8ce;margin:0 0 20px}
    .side-item{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.16);padding:13px 0;font-size:13px}
    .side-item span:last-child{color:var(--yellow);font-weight:800}
    .btn-main,.btn-sub{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:9px;font-weight:800;font-size:14px;margin:4px 6px 4px 0}
    .btn-main{background:var(--yellow);color:var(--ink);box-shadow:0 8px 18px rgba(217,150,24,.2)}
    .btn-main:hover{background:var(--yellow-deep);transform:translateY(-2px)}
    .btn-sub{border:1px solid var(--ink);color:var(--ink)}
    .btn-sub:hover{background:var(--ink);color:#fff}
    .feature-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .feature-main{min-height:285px;padding:30px;color:#fff;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:end;background:linear-gradient(0deg,rgba(32,37,31,.92),rgba(32,37,31,.12)),url('/assets/images/543a144e31dc5e44.jpg') center/cover}
    .feature-main h3{font-size:28px;margin:7px 0}
    .feature-main p{font-size:14px;color:#e0e7dc;margin:0}
    .feature-side{display:grid;gap:18px}
    .mini-feature{padding:22px;background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--yellow)}
    .mini-feature h3{font-size:18px;margin:0 0 5px}
    .mini-feature p{font-size:13px;color:var(--muted);margin:0}
    .topic-track{display:flex;gap:0;overflow:auto;padding:18px 0 24px}
    .topic-node{min-width:205px;border-top:2px solid var(--yellow);padding:19px 18px 0;position:relative}
    .topic-node:before{content:"";position:absolute;top:-8px;left:18px;width:14px;height:14px;background:var(--yellow);border:3px solid var(--cream);border-radius:50%}
    .topic-node b{font-size:14px;color:var(--forest)}
    .topic-node p{font-size:13px;color:var(--muted);margin:7px 0 0}
    .update-panel{background:var(--paper);border:1px solid var(--line);padding:25px}
    .update-line{display:grid;grid-template-columns:125px 1fr auto;align-items:center;gap:18px;padding:17px 0;border-bottom:1px solid var(--line)}
    .update-line:last-child{border:0}
    .update-date{font-size:13px;color:var(--green);font-weight:800}
    .update-line strong{font-size:15px}
    .update-line small{display:block;color:var(--muted);font-size:12px}
    .status{font-size:11px;padding:5px 9px;border-radius:20px;background:#edf2e8;color:var(--green);font-weight:800}
    .help-box{background:#eee9db;border:1px solid var(--line);padding:26px}
    .help-row{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-bottom:1px solid rgba(114,120,111,.2)}
    .help-row:last-child{border-bottom:0}
    .help-row strong{font-size:15px}
    .help-row span{color:var(--muted);font-size:13px;text-align:right}
    .cta-band{background:var(--ink);color:#fff;padding:35px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-band h2{font-size:27px;margin:0 0 7px}
    .cta-band p{color:#bdc7bc;font-size:14px;margin:0}
    .cta-band .btn-sub{border-color:#fff;color:#fff}
    .cta-band .btn-sub:hover{background:#fff;color:var(--ink)}
    footer{background:var(--ink);color:#fff;padding:48px 0 24px}
    .footer-grid{display:flex;justify-content:space-between;gap:35px}
    .footer-brand{font-size:20px;font-weight:900;margin-bottom:8px}
    footer p{color:#bbc4ba;font-size:13px;max-width:380px;margin:0}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px 23px;align-content:start}
    .footer-links a{color:#d4dbd2;font-size:13px}
    .footer-links a:hover{color:var(--yellow)}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:32px;padding-top:18px;color:#9ea99d;font-size:12px}
    .accordion-item{background:var(--paper);border:1px solid var(--line)!important;margin-bottom:10px;border-radius:10px!important;overflow:hidden}
    .accordion-button{background:var(--paper);color:var(--ink);font-weight:800;padding:18px 20px;box-shadow:none!important}
    .accordion-button:not(.collapsed){background:#fff5d5;color:var(--ink)}
    .accordion-button:after{filter:sepia(1)}
    .accordion-body{font-size:14px;color:var(--muted);padding:0 20px 20px}
    @media(max-width:991px){
      .content-layout{grid-template-columns:1fr}.side-panel{position:static}
      .feature-grid{grid-template-columns:1fr}.navbar-collapse{padding:12px 0 16px}
      .nav-action{display:inline-block;margin-top:8px}
    }
    @media(max-width:767px){
      .container{padding:0 17px}.page-intro{padding:42px 0 38px}section{padding:53px 0}
      .section-head{display:block}.section-head p{margin-top:12px}
      .video-row{grid-template-columns:1fr;gap:15px}.cover{height:190px}
      .update-line{grid-template-columns:1fr;gap:5px}.update-line .status{width:max-content}
      .help-row{display:block}.help-row span{display:block;text-align:left;margin-top:5px}
      .cta-band{display:block;padding:27px}.cta-band .btn-main{margin-top:20px}
      .footer-grid{display:block}.footer-links{margin-top:24px}
    }
    @media(max-width:520px){
      h1{font-size:34px}.filter-bar{align-items:stretch}.filter-chip{flex:1 1 42%;text-align:center}
      .feature-main{min-height:245px;padding:22px}.feature-main h3{font-size:23px}
      .cover{height:160px}.brand{font-size:17px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}