/* roulang page: index */
:root{
      --coral:#ef6d58;
      --coral-dark:#c94d3d;
      --coral-soft:#fff0eb;
      --ink:#202326;
      --muted:#70777a;
      --paper:#fbfaf7;
      --mint:#c9e3d9;
      --mint-dark:#2d7263;
      --line:#e6e3dd;
      --panel:#ffffff;
      --dark:#25282a;
      --shadow:0 12px 30px rgba(32,35,38,.08);
      --radius:7px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;padding-bottom:84px}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--coral-dark)}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    :focus-visible{outline:3px solid rgba(239,109,88,.45);outline-offset:3px}
    .site-container{max-width:1180px;margin:auto;padding:0 24px}
    .status-bar{background:var(--dark);color:#d8ddda;font-size:12px;line-height:30px}
    .status-inner{display:flex;justify-content:space-between;gap:16px}
    .status-live{color:var(--mint);font-weight:700}
    .main-nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .nav-inner{min-height:76px;display:flex;align-items:center;gap:30px}
    .brand{font-weight:800;line-height:1.15;font-size:18px;max-width:225px}
    .brand small{display:block;color:var(--coral);font-size:10px;letter-spacing:0;margin-top:5px}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-links a{padding:9px 14px;border-bottom:2px solid transparent;font-size:14px}
    .nav-links a:hover,.nav-links a.active{border-color:var(--coral);color:var(--coral-dark);background:var(--coral-soft)}
    .nav-search{display:flex;border:1px solid var(--line);height:42px;background:var(--paper)}
    .nav-search input{border:0;background:transparent;width:145px;padding:0 12px;font-size:13px}
    .nav-search button{border:0;background:var(--ink);color:#fff;width:42px}
    .hero{background:var(--dark);color:#fff;min-height:515px;position:relative;overflow:hidden}
    .hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0,transparent 76px,rgba(255,255,255,.035) 77px,transparent 78px);pointer-events:none}
    .hero-inner{min-height:515px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:56px;position:relative;z-index:1}
    .eyebrow,.section-kicker{font-size:12px;color:var(--coral);font-weight:800;letter-spacing:1px;text-transform:uppercase}
    .hero h1{font-size:clamp(38px,5vw,68px);line-height:1.15;margin:14px 0 20px;max-width:650px}
    .hero-copy{color:#d8ddda;max-width:590px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
    .btn-coral,.btn-outline-light,.btn-quiet{border-radius:var(--radius);padding:11px 18px;font-weight:700;border:1px solid transparent;transition:.2s ease}
    .btn-coral{background:var(--coral);color:#fff}
    .btn-coral:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
    .btn-outline-light{border-color:#78807f;color:#fff}
    .btn-outline-light:hover{background:#fff;color:var(--ink)}
    .hero-notice{font-size:12px;color:#aeb7b4;border-left:3px solid var(--mint);padding-left:12px}
    .preview-stage{border:1px solid #4c5352;background:#303536;padding:14px;box-shadow:0 18px 40px rgba(0,0,0,.24)}
    .preview-screen{aspect-ratio:16/10;background:#e4a18d;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
    .preview-screen::before{content:"";position:absolute;width:70%;height:150%;background:rgba(255,247,239,.26);transform:rotate(28deg)}
    .play-mark{width:68px;height:68px;border:1px solid rgba(255,255,255,.8);border-radius:50%;display:grid;place-items:center;color:#fff;font-size:25px;position:relative}
    .preview-label{position:absolute;top:14px;left:14px;background:var(--dark);padding:3px 8px;font-size:11px}
    .preview-meta{display:flex;justify-content:space-between;color:#cfd5d1;font-size:12px;padding-top:11px}
    .ticker{background:var(--coral);color:#fff;font-size:12px;padding:8px 0}
    .ticker-inner{display:flex;justify-content:space-between;gap:20px}
    .section{padding:76px 0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-heading h2{font-size:32px;line-height:1.3;margin:8px 0 0}
    .section-heading p{max-width:520px;color:var(--muted);margin:0}
    .feature-row{border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr)}
    .feature{padding:28px 24px 24px 0;border-right:1px solid var(--line);min-height:170px}
    .feature:not(:first-child){padding-left:24px}
    .feature:last-child{border-right:0}
    .feature-no{font-size:28px;color:var(--coral);font-weight:800}
    .feature h3{font-size:19px;margin:4px 0 8px}
    .feature p{color:var(--muted);font-size:14px;margin:0}
    .strip-dark{background:var(--dark);color:#fff}
    .strip-dark .section-heading p{color:#bfc7c3}
    .demo-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px}
    .demo-player{background:#343a39;border:1px solid #505957;padding:16px}
    .demo-view{aspect-ratio:16/8;background:#c98371;display:flex;align-items:center;justify-content:center;position:relative}
    .demo-view span{border:1px solid #fff;color:#fff;padding:10px 14px;font-size:13px}
    .timeline{height:4px;background:#65706c;margin:15px 0 10px}.timeline i{display:block;width:42%;height:100%;background:var(--coral)}
    .demo-controls{display:flex;justify-content:space-between;color:#cdd4d0;font-size:12px}
    .info-panel{border:1px solid #505957;padding:22px}
    .info-panel h3{font-size:20px;margin:0 0 18px}.info-line{display:flex;justify-content:space-between;border-bottom:1px solid #454c4a;padding:10px 0;font-size:13px}.info-line b{color:var(--mint)}
    .tag{display:inline-block;background:var(--coral-soft);color:var(--coral-dark);padding:3px 9px;font-size:12px;border-radius:3px;margin:3px 4px 3px 0}
    .tag.mint{background:rgba(201,227,217,.16);color:var(--mint)}
    .index-list{border-top:1px solid var(--line)}
    .index-item{display:grid;grid-template-columns:70px 1fr auto;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:20px 0}
    .index-number{font-size:22px;color:var(--coral);font-weight:800}
    .index-item h3{font-size:18px;margin:0 0 3px}.index-item p{margin:0;color:var(--muted);font-size:13px}
    .arrow{font-size:22px;color:var(--coral)}
    .recognition{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .quote-box,.stats-box{background:#fff;border:1px solid var(--line);padding:28px;box-shadow:var(--shadow)}
    .quote-box blockquote{font-size:20px;line-height:1.65;margin:0 0 20px}.quote-meta{color:var(--muted);font-size:13px}
    .stats{display:grid;grid-template-columns:1fr 1fr;gap:20px}.stat{border-left:3px solid var(--mint-dark);padding-left:15px}.stat strong{display:block;font-size:30px;line-height:1.2}.stat span{font-size:13px;color:var(--muted)}
    .category-band{background:var(--coral-soft);border-top:1px solid #f4d5ce;border-bottom:1px solid #f4d5ce}
    .category-links{display:flex;flex-wrap:wrap;gap:10px}
    .category-link{background:#fff;border:1px solid #efc9c0;padding:10px 15px;border-radius:4px;font-size:14px}
    .category-link:hover{border-color:var(--coral);box-shadow:var(--shadow)}
    .accordion-item{border:1px solid var(--line)!important;margin-bottom:10px;background:#fff}
    .accordion-button{font-weight:700;background:#fff;color:var(--ink);box-shadow:none!important}
    .accordion-button:not(.collapsed){background:var(--coral-soft);color:var(--coral-dark)}
    .accordion-body{color:var(--muted);font-size:14px}
    .compliance{background:#edf5f1;border-left:4px solid var(--mint-dark);padding:24px}
    .compliance h2{font-size:22px;margin:0 0 8px}.compliance p{margin:0;color:#516661;font-size:14px}
    .footer{background:var(--dark);color:#d8ddda;padding:44px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}.footer h2{font-size:20px;color:#fff}.footer h3{font-size:14px;color:var(--mint);margin-bottom:12px}.footer a{display:block;color:#c2c9c5;font-size:13px;padding:3px 0}.footer a:hover{color:#fff}.footer-copy{border-top:1px solid #454c4a;margin-top:32px;padding-top:18px;color:#929c98;font-size:12px}
    .fixed-cta{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(0,0,0,.08);z-index:30}.fixed-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.fixed-label{font-weight:800}.fixed-label span{display:block;color:var(--muted);font-size:12px;font-weight:400}
    @media(max-width:991px){.hero-inner{grid-template-columns:1fr;gap:28px;padding-top:56px;padding-bottom:56px}.preview-stage{max-width:620px}.nav-inner{gap:14px}.nav-search input{width:100px}.demo-grid{grid-template-columns:1fr}}
    @media(max-width:767px){body{padding-bottom:116px}.site-container{padding:0 17px}.status-inner{line-height:25px;align-items:center}.status-inner span:last-child{display:none}.nav-inner{min-height:68px;flex-wrap:wrap}.brand{font-size:16px}.nav-search{margin-left:auto}.nav-links{order:3;width:100%;margin:0;padding:8px 0;display:none;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:11px 12px}.nav-toggler{display:block;border:1px solid var(--line);background:#fff;padding:8px 11px}.hero h1{font-size:39px}.hero-copy{font-size:15px}.section{padding:54px 0}.section-heading{display:block}.section-heading h2{font-size:27px;margin-bottom:10px}.feature-row{grid-template-columns:1fr}.feature,.feature:not(:first-child){padding:22px 0;border-right:0;border-bottom:1px solid var(--line)}.feature:last-child{border-bottom:0}.index-item{grid-template-columns:42px 1fr;gap:13px}.index-item .arrow{grid-column:2}.recognition{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:22px}.fixed-inner{min-height:88px;align-items:center}.fixed-label{font-size:13px;max-width:140px}.fixed-actions{display:flex;gap:7px}.fixed-actions .btn-coral,.fixed-actions .btn-quiet{padding:9px 11px;font-size:12px}.ticker-inner{font-size:11px}.ticker-inner span:last-child{display:none}}
    @media(max-width:390px){.nav-search input{width:78px}.hero h1{font-size:34px}.fixed-label{display:none}.fixed-inner{justify-content:center}}

/* roulang page: category1 */
:root{
      --coral:#ef6d58;
      --coral-dark:#c94d3d;
      --coral-soft:#fff0eb;
      --ink:#202326;
      --muted:#70777a;
      --paper:#fbfaf7;
      --mint:#c9e3d9;
      --mint-dark:#2d7263;
      --line:#e6e3dd;
      --panel:#ffffff;
      --dark:#25282a;
      --shadow:0 12px 30px rgba(32,35,38,.08);
      --radius:7px;
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;padding-bottom:92px}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--coral-dark)}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(239,109,88,.35);outline-offset:3px}
    .site-container{max-width:1180px;margin:auto;padding:0 24px}
    .main-nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .nav-inner{min-height:76px;display:flex;align-items:center;gap:26px}
    .brand{font-weight:800;line-height:1.15;font-size:18px;max-width:245px}
    .brand small{display:block;color:var(--coral);font-size:10px;letter-spacing:0;margin-top:5px}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-links a{padding:9px 14px;border-bottom:2px solid transparent;font-size:14px}
    .nav-links a:hover,.nav-links a.active{border-color:var(--coral);color:var(--coral-dark);background:var(--coral-soft)}
    .nav-search{display:flex;border:1px solid var(--line);height:42px;background:var(--paper)}
    .nav-search input{border:0;background:transparent;width:145px;padding:0 12px;font-size:13px}
    .nav-search button{border:0;background:var(--ink);color:#fff;width:42px;transition:.2s}
    .nav-search button:hover{background:var(--coral-dark)}
    .nav-toggler{border:1px solid var(--line);background:#fff;padding:8px 11px;border-radius:4px}
    .status-bar{background:var(--dark);color:#c9d0cc;font-size:11px;padding:5px 0}
    .status-inner{display:flex;justify-content:space-between;gap:15px}
    .status-live{color:var(--mint)}
    .breadcrumb-band{border-bottom:1px solid var(--line);background:#fff}
    .breadcrumb{margin:0;padding:18px 0;font-size:13px;color:var(--muted)}
    .breadcrumb-item+.breadcrumb-item::before{content:"/";color:#b2b5b2}
    .breadcrumb-item.active{color:var(--ink);font-weight:700}
    .page-head{background:var(--dark);color:#fff;padding:55px 0 48px;position:relative;overflow:hidden}
    .page-head:after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(90deg,transparent 0,transparent 78px,rgba(255,255,255,.035) 79px,transparent 80px)}
    .page-head-inner{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:end;gap:40px}
    .eyebrow,.section-kicker{font-size:12px;color:var(--coral);font-weight:800;letter-spacing:1px}
    .page-head h1{font-size:clamp(34px,5vw,58px);line-height:1.2;margin:14px 0 14px;max-width:690px}
    .page-head p{color:#d2d9d5;max-width:650px;margin:0;font-size:16px}
    .head-stats{display:flex;gap:10px;flex-wrap:wrap;min-width:280px}
    .stat-box{border-left:2px solid var(--coral);padding:7px 14px;background:rgba(255,255,255,.05);min-width:120px}
    .stat-box strong{display:block;color:#fff;font-size:22px;line-height:1.2}
    .stat-box span{font-size:11px;color:#adb7b2}
    .section{padding:64px 0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
    .section-heading h2{font-size:30px;line-height:1.3;margin:8px 0 0}
    .section-heading p{max-width:500px;color:var(--muted);margin:0;font-size:14px}
    .filter-panel{background:#fff;border:1px solid var(--line);padding:20px;box-shadow:var(--shadow);margin-bottom:28px}
    .filter-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr auto;gap:12px;align-items:end}
    .form-label{font-size:12px;font-weight:700;margin-bottom:5px}
    .form-control,.form-select{border:1px solid var(--line);border-radius:4px;min-height:42px;background:var(--paper);font-size:13px}
    .form-control:focus,.form-select:focus{border-color:var(--coral);box-shadow:0 0 0 3px rgba(239,109,88,.12)}
    .btn-coral,.btn-quiet{border-radius:var(--radius);padding:10px 17px;font-weight:700;border:1px solid transparent;transition:.2s ease;display:inline-flex;align-items:center;justify-content:center;gap:7px}
    .btn-coral{background:var(--coral);color:#fff}
    .btn-coral:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
    .btn-quiet{background:#fff;border-color:var(--line);color:var(--ink)}
    .btn-quiet:hover{border-color:var(--coral);background:var(--coral-soft);color:var(--coral-dark)}
    .content-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px}
    .content-list{border-top:1px solid var(--line)}
    .content-item{display:grid;grid-template-columns:190px 1fr auto;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:18px 0}
    .thumb{aspect-ratio:16/9;background:#303536;border:1px solid #4b5350;position:relative;overflow:hidden}
    .thumb:before{content:"预览区域";position:absolute;inset:0;display:grid;place-items:center;color:#b8c5bf;font-size:13px;letter-spacing:1px;background:linear-gradient(135deg,#303536 0 48%,#3c4542 48% 52%,#303536 52%)}
    .duration{position:absolute;right:7px;bottom:6px;background:rgba(0,0,0,.75);color:#fff;padding:1px 6px;border-radius:3px;font-size:11px}
    .item-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px}
    .tag{display:inline-block;background:var(--coral-soft);color:var(--coral-dark);padding:2px 8px;font-size:11px;border-radius:3px}
    .tag.mint{background:#e8f3ef;color:var(--mint-dark)}
    .content-item h3{font-size:18px;line-height:1.45;margin:0 0 5px}
    .item-desc{font-size:13px;color:var(--muted);margin:0}
    .item-meta{font-size:11px;color:var(--muted);margin-top:7px}
    .side-panel{background:#fff;border:1px solid var(--line);padding:20px;height:max-content}
    .side-panel h3{font-size:17px;margin:0 0 14px}
    .path-list{list-style:none;padding:0;margin:0}
    .path-list li{border-bottom:1px solid var(--line);padding:11px 0;font-size:13px;display:flex;justify-content:space-between}
    .path-list li:last-child{border-bottom:0}
    .side-note{border-left:3px solid var(--mint-dark);background:#f1f7f4;color:var(--muted);padding:12px;font-size:12px;margin-top:20px}
    .empty-state{border:1px dashed #c9c5bd;text-align:center;padding:22px;color:var(--muted);font-size:13px;margin-top:18px}
    .pagination .page-link{color:var(--ink);border-color:var(--line);background:#fff}
    .pagination .page-item.active .page-link{background:var(--coral);border-color:var(--coral);color:#fff}
    .pagination .page-item.disabled .page-link{color:#b7b9b5;background:#f4f3ef}
    .related-band{background:#eef5f1;border-top:1px solid #dcebe4;border-bottom:1px solid #dcebe4}
    .related-links{display:flex;gap:10px;flex-wrap:wrap}
    .related-links a{background:#fff;border:1px solid #d9e4df;padding:9px 13px;border-radius:4px;font-size:13px}
    .related-links a:hover{border-color:var(--coral);color:var(--coral-dark)}
    .accordion-item{border:1px solid var(--line)!important;margin-bottom:10px;background:#fff}
    .accordion-button{font-weight:700;background:#fff;color:var(--ink);box-shadow:none!important}
    .accordion-button:not(.collapsed){background:var(--coral-soft);color:var(--coral-dark)}
    .accordion-body{color:var(--muted);font-size:14px}
    .compliance{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .compliance-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
    .compliance h2{font-size:25px;margin:8px 0 12px}
    .compliance p{font-size:14px;color:var(--muted);margin:0}
    .notice-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .notice{border-left:3px solid var(--coral);background:var(--coral-soft);padding:10px 12px;font-size:12px}
    .footer{background:var(--dark);color:#d8ddda;padding:44px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
    .footer h2{font-size:20px;color:#fff}
    .footer h3{font-size:14px;color:var(--mint);margin-bottom:12px}
    .footer a{display:block;color:#c2c9c5;font-size:13px;padding:4px 0}
    .footer a:hover{color:#fff}
    .footer-copy{border-top:1px solid #454c4a;margin-top:32px;padding-top:18px;color:#929c98;font-size:12px}
    .fixed-cta{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(0,0,0,.08);z-index:30}
    .fixed-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .fixed-label{font-size:13px;font-weight:700}
    .fixed-label span{display:block;color:var(--muted);font-size:11px;font-weight:400}
    .fixed-actions{display:flex;gap:9px}
    .back-link{font-size:13px;font-weight:700;color:var(--coral-dark)}
    @media(max-width:991px){
      .filter-grid{grid-template-columns:1fr 1fr}
      .content-layout{grid-template-columns:1fr}
      .side-panel{order:2}
      .page-head-inner{display:block}
      .head-stats{margin-top:25px}
    }
    @media(max-width:767px){
      body{padding-bottom:122px}
      .site-container{padding:0 17px}
      .status-inner{display:block}
      .nav-inner{min-height:68px;flex-wrap:wrap;gap:12px}
      .brand{font-size:16px;max-width:205px}
      .nav-toggler{margin-left:auto}
      .nav-links{order:3;width:100%;margin:0;padding:8px 0;display:none;flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}
      .nav-links a{padding:11px 12px}
      .nav-search{order:4;width:100%;margin-bottom:10px}
      .nav-search input{width:100%}
      .page-head{padding:40px 0}
      .page-head h1{font-size:37px}
      .page-head p{font-size:14px}
      .filter-grid{grid-template-columns:1fr}
      .content-item{grid-template-columns:118px 1fr;gap:13px}
      .content-item .btn-coral{grid-column:2;justify-self:start}
      .content-item h3{font-size:16px}
      .item-desc{display:none}
      .compliance-grid{grid-template-columns:1fr}
      .notice-list{grid-template-columns:1fr}
      .section{padding:48px 0}
      .section-heading{display:block}
      .section-heading h2{font-size:26px;margin-bottom:9px}
      .footer-grid{grid-template-columns:1fr;gap:22px}
      .fixed-inner{padding-top:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom));align-items:stretch}
      .fixed-label{display:none}
      .fixed-actions{width:100%}
      .fixed-actions a{flex:1}
    }
    @media(max-width:390px){
      .content-item{grid-template-columns:100px 1fr}
      .content-item .btn-coral{font-size:12px;padding:8px 10px}
    }