/* roulang page: index */
:root{
      --ink:#211c26;
      --deep:#18131c;
      --panel:#241c2b;
      --panel-2:#30233a;
      --berry:#762c59;
      --berry-light:#a74478;
      --coral:#f17d5f;
      --mint:#91d3bf;
      --cream:#f7f1ea;
      --paper:#fffaf5;
      --muted:#a99eab;
      --line:rgba(255,255,255,.12);
      --line-dark:rgba(33,28,38,.12);
      --radius:16px;
      --shadow:0 18px 45px rgba(20,12,27,.18);
      --ease:all .28s ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow::before{content:"";width:24px;height:2px;background:var(--coral)}
    .section{padding:96px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
    .section-head h2{margin:10px 0 0;font-size:clamp(28px,4vw,46px);line-height:1.18;letter-spacing:-.04em}
    .section-head p{max-width:470px;margin:0;color:#716875}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:0 20px;border-radius:9px;border:1px solid transparent;font-weight:700;cursor:pointer;transition:var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--coral);color:#28151b;box-shadow:0 8px 18px rgba(241,125,95,.2)}
    .btn-primary:hover{background:#ff9275}
    .btn-dark{background:var(--berry);color:#fff}
    .btn-dark:hover{background:var(--berry-light)}
    .btn-quiet{border-color:var(--line-dark);color:var(--ink);background:transparent}
    .btn-quiet:hover{border-color:var(--berry);color:var(--berry)}
    .tag{display:inline-flex;align-items:center;min-height:26px;padding:0 9px;border-radius:5px;background:rgba(145,211,191,.15);color:#38796d;font-size:12px;font-weight:700}
    .tag.warm{background:rgba(241,125,95,.14);color:#ba523b}
    .site-header{position:absolute;z-index:10;top:0;left:0;right:0;padding:22px 0}
    .nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:18px;font-weight:800;letter-spacing:-.04em}
    .brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:10px;background:var(--coral);color:var(--deep);font-weight:900}
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{padding:9px 14px;border-radius:7px;color:#d9cedb;font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.1)}
    .nav-search{display:flex;align-items:center;border:1px solid var(--line);background:rgba(24,19,28,.7);border-radius:8px;overflow:hidden}
    .nav-search input{width:170px;padding:9px 12px;border:0;outline:0;background:transparent;color:#fff;font-size:13px}
    .nav-search button{height:38px;padding:0 12px;border:0;background:var(--coral);color:var(--deep);cursor:pointer}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:#fff;border-radius:7px;padding:7px 10px}
    .hero{min-height:700px;padding:145px 0 72px;background:var(--deep);color:#fff;position:relative;overflow:hidden}
    .hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 22%,rgba(118,44,89,.55),transparent 35%),linear-gradient(115deg,transparent 45%,rgba(241,125,95,.06) 45%,transparent 70%);pointer-events:none}
    .hero-grid{position:relative;display:grid;grid-template-columns:44% 56%;align-items:center;gap:35px}
    .hero-copy{padding-right:30px}
    .hero-copy .eyebrow{color:var(--mint)}
    .hero-copy h1{max-width:560px;margin:18px 0 20px;font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.065em}
    .hero-copy h1 strong{color:var(--coral);font-weight:900}
    .hero-copy p{max-width:535px;margin:0 0 28px;color:#cfc2d0;font-size:18px;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:34px;color:#b8abb9;font-size:13px}
    .hero-meta b{display:block;color:#fff;font-size:22px;line-height:1.2}
    .visual-stage{position:relative;min-height:430px;padding:24px;border:1px solid var(--line);border-radius:24px;background:#211824;box-shadow:var(--shadow)}
    .visual-stage::after{content:"观看入口";position:absolute;right:28px;top:28px;padding:4px 9px;border:1px solid rgba(145,211,191,.4);border-radius:5px;color:var(--mint);font-size:11px}
    .feature-screen{position:relative;height:260px;border-radius:15px;overflow:hidden;background:linear-gradient(135deg,#6d345f 0%,#c46a65 48%,#f3ae7c 100%)}
    .feature-screen::before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,transparent 25%,rgba(30,18,34,.45) 25%,transparent 26%),radial-gradient(ellipse at 72% 30%,rgba(255,236,210,.75),transparent 18%),linear-gradient(0deg,rgba(22,14,27,.7),transparent 62%)}
    .screen-caption{position:absolute;left:24px;bottom:20px;right:24px;display:flex;justify-content:space-between;align-items:end}
    .screen-caption h3{margin:0;font-size:25px;line-height:1.2}
    .play-button{display:grid;place-items:center;width:54px;height:54px;border:0;border-radius:50%;background:var(--coral);color:var(--deep);font-size:20px;cursor:pointer}
    .play-button:hover{background:#ffad91;transform:scale(1.04)}
    .thumb-row{display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:12px;margin-top:14px}
    .thumb{position:relative;min-height:105px;border-radius:11px;overflow:hidden;padding:13px;background:linear-gradient(145deg,#46304b,#b85c62);color:#fff}
    .thumb:nth-child(2){background:linear-gradient(145deg,#28514f,#78a98d)}
    .thumb:nth-child(3){background:linear-gradient(145deg,#553348,#e18b62)}
    .thumb span{position:absolute;left:13px;bottom:11px;font-size:12px;font-weight:700}
    .stage-footer{display:flex;justify-content:space-between;margin-top:18px;color:#aa9eab;font-size:12px}
    .stage-footer i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:6px}
    .channel-strip{position:relative;margin-top:60px;display:flex;align-items:center;gap:10px;overflow:auto;padding-bottom:4px}
    .channel-strip span{flex:0 0 auto;padding:7px 12px;border:1px solid var(--line);border-radius:6px;color:#b9adba;font-size:12px}
    .channel-strip span:first-child{background:var(--berry);border-color:var(--berry);color:#fff}
    .service-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .service-feature{padding:34px;border-radius:var(--radius);background:var(--panel);color:#fff;min-height:315px;display:flex;flex-direction:column;justify-content:space-between}
    .service-feature h3{max-width:440px;margin:12px 0;font-size:32px;line-height:1.25}
    .service-feature p{max-width:450px;color:#c8bac9}
    .service-list{display:flex;flex-direction:column;gap:10px}
    .service-item{display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:14px;padding:18px;border:1px solid var(--line-dark);border-radius:12px;background:var(--paper);transition:var(--ease)}
    .service-item:hover{border-color:var(--berry-light);transform:translateX(4px)}
    .service-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;background:#f0e1e5;color:var(--berry);font-weight:900}
    .service-item h4{margin:0;font-size:16px}
    .service-item p{margin:2px 0 0;color:#7d737d;font-size:13px;line-height:1.5}
    .service-item .btn{min-height:34px;padding:0 12px;font-size:12px}
    .dashboard{background:var(--panel-2);color:#fff}
    .dashboard-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center}
    .dashboard h2{margin:12px 0;font-size:clamp(28px,4vw,44px);line-height:1.2}
    .dashboard p{color:#c8bac9}
    .metric-rail{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:22px;border:1px solid var(--line);border-radius:12px;background:rgba(24,19,28,.38)}
    .metric b{display:block;color:var(--coral);font-size:32px;line-height:1}
    .metric span{display:block;margin-top:9px;color:#fff;font-weight:700}
    .metric small{display:block;margin-top:5px;color:#a99eab;font-size:12px}
    .progress{height:5px;margin-top:15px;border-radius:5px;background:#493b50;overflow:hidden}
    .progress i{display:block;height:100%;width:78%;background:var(--mint)}
    .sample-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
    .sample-main{position:relative;min-height:375px;padding:28px;border-radius:20px;overflow:hidden;color:#fff;background:linear-gradient(135deg,#4f2548,#a85269 55%,#e89b73)}
    .sample-main::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 28%,rgba(255,233,198,.75),transparent 13%),linear-gradient(0deg,rgba(22,14,27,.8),transparent 65%)}
    .sample-content{position:absolute;left:28px;right:28px;bottom:26px}
    .sample-content h3{margin:10px 0 6px;font-size:30px}
    .sample-content p{margin:0;color:#f4dce0}
    .sample-side{display:flex;flex-direction:column;gap:12px}
    .sample-side article{padding:20px;border-radius:14px;background:var(--paper);border:1px solid var(--line-dark)}
    .sample-side h4{margin:8px 0 4px;font-size:17px}
    .sample-side p{margin:0;color:#766d76;font-size:13px}
    .solution-wrap{display:grid;grid-template-columns:250px 1fr;gap:20px}
    .solution-tabs{display:flex;flex-direction:column;gap:8px}
    .solution-tabs a{padding:16px;border-radius:10px;color:#706671;font-weight:700}
    .solution-tabs a:hover,.solution-tabs a.active{background:var(--berry);color:#fff}
    .solution-panel{padding:30px;border-radius:18px;background:var(--paper);border:1px solid var(--line-dark)}
    .solution-panel h3{margin:0 0 7px;font-size:26px}
    .solution-panel>p{margin:0 0 22px;color:#716875}
    .solution-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:24px}
    .solution-points div{padding:15px;border-radius:10px;background:#f0e8e4}
    .solution-points b{display:block;font-size:14px}
    .solution-points span{color:#756b74;font-size:12px}
    .faq-section{background:#eee5df}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:60px}
    .faq-index{padding-top:8px}
    .faq-index p{color:#716875}
    .accordion{margin:0;background:transparent}
    .accordion-item{border:0;border-bottom:1px solid var(--line-dark);background:transparent}
    .accordion-title{padding:22px 40px 22px 0;border:0;color:var(--ink);font-weight:800;font-size:17px}
    .accordion-title:hover{background:transparent;color:var(--berry)}
    .accordion-title::before{right:4px;color:var(--berry)}
    .accordion-content{padding:0 42px 22px 0;border:0;background:transparent;color:#6e6470}
    .contact-section{padding-top:90px}
    .contact-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:30px;align-items:stretch}
    .contact-intro{padding:34px;border-radius:18px;background:var(--berry);color:#fff}
    .contact-intro h2{margin:12px 0;font-size:38px;line-height:1.2}
    .contact-intro p{color:#e6d3df}
    .contact-links{margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.2)}
    .contact-links a{display:block;padding:8px 0;color:#fff}
    .contact-links a:hover{color:var(--coral)}
    .contact-form{padding:34px;border-radius:18px;background:var(--paper);border:1px solid var(--line-dark)}
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    label{display:block;margin-bottom:7px;color:#4f4550;font-size:13px;font-weight:800}
    input,select,textarea{width:100%;border:1px solid #d9ced0;border-radius:8px;background:#fff;padding:12px 14px;color:var(--ink);transition:var(--ease)}
    input,select{height:46px}
    textarea{min-height:120px;resize:vertical}
    input:hover,select:hover,textarea:hover{border-color:#b78b9e}
    .form-field{margin-bottom:17px}
    .form-note{margin:12px 0 0;color:#897d87;font-size:12px}
    .site-footer{padding:52px 0 24px;background:var(--deep);color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:30px;padding-bottom:38px}
    .footer-brand p{max-width:280px;color:#a99eab;font-size:13px}
    .footer-title{margin:4px 0 13px;color:#fff;font-size:13px}
    .footer-grid a{display:block;padding:4px 0;color:#a99eab;font-size:13px}
    .footer-grid a:hover{color:var(--coral)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:18px;border-top:1px solid var(--line);color:#887d8b;font-size:12px}
    @media(max-width:900px){
      .main-nav{gap:0}.main-nav a{padding:8px 8px}
      .nav-search input{width:120px}
      .hero-grid,.service-layout,.dashboard-grid,.sample-layout,.contact-grid{grid-template-columns:1fr}
      .hero-copy{padding-right:0}.hero{min-height:auto}
      .visual-stage{max-width:680px}
      .solution-wrap,.faq-layout{grid-template-columns:1fr;gap:25px}
      .solution-tabs{flex-direction:row;overflow:auto}.solution-tabs a{flex:0 0 auto}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:640px){
      .container{width:min(100% - 32px,560px)}
      .section{padding:65px 0}
      .site-header{padding:15px 0}
      .nav-shell{flex-wrap:wrap}
      .brand{font-size:15px}
      .brand-mark{width:31px;height:31px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav,.nav-search{display:none;width:100%}
      .nav-shell.open .main-nav{display:flex;flex-direction:column;align-items:stretch;padding-top:10px}
      .nav-shell.open .main-nav a{padding:11px 12px}
      .nav-shell.open .nav-search{display:flex}
      .nav-shell.open .nav-search input{width:100%}
      .hero{padding:112px 0 50px}
      .hero-copy h1{font-size:44px}
      .hero-copy p{font-size:16px}
      .hero-meta{gap:14px}
      .visual-stage{min-height:350px;padding:14px}
      .feature-screen{height:205px}
      .thumb{min-height:80px;padding:9px}
      .thumb span{left:9px;bottom:8px;font-size:11px}
      .section-head{display:block;margin-bottom:26px}
      .section-head p{margin-top:14px}
      .service-feature{padding:25px;min-height:280px}
      .service-feature h3{font-size:27px}
      .service-item{grid-template-columns:40px 1fr}.service-item .btn{grid-column:2;justify-self:start}
      .metric-rail,.solution-points,.form-row{grid-template-columns:1fr}
      .sample-main{min-height:300px}
      .sample-content h3{font-size:25px}
      .contact-intro,.contact-form{padding:25px}
      .contact-intro h2{font-size:31px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }

/* roulang page: category1 */
:root{
            --ink:#211c26;
            --deep:#18131c;
            --panel:#241c2b;
            --panel-2:#30233a;
            --berry:#762c59;
            --berry-light:#a74478;
            --coral:#f17d5f;
            --mint:#91d3bf;
            --cream:#f7f1ea;
            --paper:#fffaf5;
            --muted:#a99eab;
            --line:rgba(255,255,255,.12);
            --line-dark:rgba(33,28,38,.12);
            --radius:16px;
            --shadow:0 18px 45px rgba(20,12,27,.18);
            --ease:all .28s ease;
        }
        html{scroll-behavior:smooth}
        *{box-sizing:border-box}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:var(--ease)}
        img{display:block;max-width:100%;height:auto}
        button,input,select,textarea{font:inherit}
        button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
        .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        .site-header{position:absolute;z-index:10;top:0;left:0;right:0;padding:22px 0}
        .nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:18px;font-weight:800;letter-spacing:-.04em}
        .brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:10px;background:var(--coral);color:var(--deep);font-weight:900}
        .main-nav{display:flex;align-items:center;gap:8px}
        .main-nav a{padding:9px 14px;border-radius:7px;color:#d9cedb;font-size:14px}
        .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.1)}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);background:rgba(24,19,28,.7);border-radius:8px;overflow:hidden}
        .nav-search input{width:170px;padding:9px 12px;border:0;outline:0;background:transparent;color:#fff;font-size:13px}
        .nav-search button{height:38px;padding:0 12px;border:0;background:var(--coral);color:var(--deep);cursor:pointer}
        .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:#fff;border-radius:7px;padding:7px 10px}
        .page-hero{padding:145px 0 62px;background:var(--deep);color:#fff;position:relative;overflow:hidden}
        .page-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 82% 18%,rgba(118,44,89,.55),transparent 35%),linear-gradient(115deg,transparent 42%,rgba(241,125,95,.07) 42%,transparent 70%)}
        .page-hero .container{position:relative}
        .breadcrumb{display:flex;gap:10px;align-items:center;color:#a99eab;font-size:13px;margin-bottom:24px}
        .breadcrumb a:hover{color:var(--coral)}
        .hero-layout{display:grid;grid-template-columns:1fr 390px;gap:56px;align-items:end}
        .page-hero h1{max-width:700px;margin:14px 0 18px;font-size:clamp(38px,6vw,68px);line-height:1.1;letter-spacing:-.06em}
        .page-hero h1 strong{color:var(--coral)}
        .page-hero p{max-width:650px;margin:0;color:#cfc2d0;font-size:17px;line-height:1.85}
        .hero-panel{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(48,35,58,.72)}
        .panel-label{display:flex;justify-content:space-between;color:#b9adbb;font-size:12px;margin-bottom:16px}
        .panel-label b{color:var(--mint)}
        .signal-row{display:flex;align-items:center;gap:12px;padding:13px 0;border-top:1px solid var(--line)}
        .signal-row:first-of-type{border-top:0}
        .signal-dot{width:8px;height:8px;border-radius:50%;background:var(--coral);flex:none}
        .signal-row span{flex:1;color:#eee4ed;font-size:14px}
        .signal-row em{font-style:normal;color:#a99eab;font-size:12px}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-head h2{margin:10px 0 0;font-size:clamp(28px,4vw,44px);line-height:1.18;letter-spacing:-.04em}
        .section-head p{max-width:470px;margin:0;color:#716875}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:9px;border:1px solid transparent;font-weight:700;cursor:pointer;transition:var(--ease)}
        .btn:hover{transform:translateY(-2px)}
        .btn-primary{background:var(--coral);color:#28151b;box-shadow:0 8px 18px rgba(241,125,95,.2)}
        .btn-primary:hover{background:#ff9275}
        .btn-dark{background:var(--berry);color:#fff}
        .btn-dark:hover{background:var(--berry-light)}
        .btn-quiet{border-color:var(--line-dark);color:var(--ink);background:transparent}
        .btn-quiet:hover{border-color:var(--berry);color:var(--berry)}
        .tag{display:inline-flex;align-items:center;min-height:26px;padding:0 9px;border-radius:5px;background:rgba(145,211,191,.15);color:#38796d;font-size:12px;font-weight:700}
        .tag.warm{background:rgba(241,125,95,.14);color:#ba523b}
        .tag.dark{background:rgba(118,44,89,.12);color:var(--berry)}
        .featured-layout{display:grid;grid-template-columns:1.35fr .85fr;gap:18px}
        .feature-card{min-height:390px;display:flex;align-items:end;padding:30px;border-radius:20px;overflow:hidden;position:relative;color:#fff;background:linear-gradient(135deg,#6d345f,#c46a65 53%,#f3ae7c)}
        .feature-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(24,19,28,.88),transparent 68%),radial-gradient(circle at 72% 25%,rgba(255,232,210,.35),transparent 18%)}
        .feature-content{position:relative;max-width:510px}
        .feature-content h3{font-size:32px;line-height:1.25;margin:14px 0 10px}
        .feature-content p{color:#f5e8e8;margin:0 0 18px}
        .update-rail{padding:23px;border-radius:20px;background:var(--panel);color:#fff}
        .update-rail h3{margin:0 0 14px;font-size:21px}
        .update-item{display:grid;grid-template-columns:62px 1fr;gap:13px;padding:15px 0;border-top:1px solid var(--line)}
        .mini-cover{height:70px;border-radius:9px;background:linear-gradient(145deg,#442846,#e58b72)}
        .update-item:nth-child(3) .mini-cover{background:linear-gradient(145deg,#31544f,#bb6975)}
        .update-item:nth-child(4) .mini-cover{background:linear-gradient(145deg,#3f2b58,#c69470)}
        .update-item h4{margin:0 0 3px;font-size:14px}
        .update-item p{margin:0;color:#a99eab;font-size:12px}
        .browse-strip{margin-top:20px;padding:18px 20px;border:1px solid var(--line-dark);border-radius:14px;background:var(--paper);display:flex;align-items:center;gap:14px;overflow:auto}
        .browse-strip strong{white-space:nowrap;font-size:14px}
        .browse-strip .tag{white-space:nowrap}
        .metrics-section{background:var(--panel);color:#fff}
        .metrics-layout{display:grid;grid-template-columns:.85fr 1.5fr;gap:60px;align-items:center}
        .metrics-section .section-head{display:block;margin:0}
        .metrics-section .section-head p{color:#bdb1c0;margin-top:18px}
        .metric-track{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
        .metric-box{padding:22px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.035)}
        .metric-box b{display:block;color:var(--coral);font-size:34px;line-height:1.2}
        .metric-box span{display:block;margin-top:5px;font-weight:700}
        .metric-box small{display:block;margin-top:7px;color:#a99eab;font-size:12px}
        .metric-line{height:4px;margin-top:18px;border-radius:5px;background:#403449;overflow:hidden}
        .metric-line i{display:block;width:78%;height:100%;background:var(--mint)}
        .metric-box:nth-child(2) .metric-line i{width:62%;background:var(--coral)}
        .metric-box:nth-child(3) .metric-line i{width:86%;background:var(--mint)}
        .metric-box:nth-child(4) .metric-line i{width:70%;background:var(--coral)}
        .content-wall{display:grid;grid-template-columns:1.05fr .95fr .8fr;gap:16px;align-items:stretch}
        .content-card{position:relative;min-height:270px;padding:22px;border-radius:16px;overflow:hidden;background:var(--paper);border:1px solid var(--line-dark);display:flex;flex-direction:column;justify-content:end;transition:var(--ease)}
        .content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--berry-light)}
        .content-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(25,18,29,.9),rgba(25,18,29,.05) 75%),linear-gradient(135deg,#65365d,#d78d70)}
        .content-card:nth-child(2):before{background:linear-gradient(0deg,rgba(25,18,29,.9),rgba(25,18,29,.05) 75%),linear-gradient(135deg,#31534f,#b86275)}
        .content-card:nth-child(3):before{background:linear-gradient(0deg,rgba(25,18,29,.9),rgba(25,18,29,.05) 75%),linear-gradient(135deg,#3e2b53,#d19b70)}
        .content-card > *{position:relative;color:#fff}
        .content-card h3{margin:12px 0 6px;font-size:21px}
        .content-card p{margin:0;color:#e6d9df;font-size:13px}
        .content-meta{display:flex;justify-content:space-between;color:#d7c4cc;font-size:12px}
        .path-section{background:#eee5dc}
        .path-layout{display:grid;grid-template-columns:280px 1fr;gap:18px}
        .path-tabs{display:flex;flex-direction:column;gap:8px}
        .path-tab{padding:16px 18px;border:1px solid var(--line-dark);border-radius:11px;background:var(--paper);text-align:left;font-weight:700;cursor:pointer;transition:var(--ease)}
        .path-tab:hover,.path-tab.is-selected{background:var(--berry);color:#fff;border-color:var(--berry)}
        .path-panel{padding:30px;border-radius:18px;background:var(--deep);color:#fff}
        .path-panel h3{margin:0 0 10px;font-size:28px}
        .path-panel p{color:#c7bac8;max-width:600px}
        .path-items{display:flex;flex-wrap:wrap;gap:9px;margin:23px 0}
        .path-items span{padding:8px 12px;border:1px solid var(--line);border-radius:7px;color:#e5d8e3;font-size:13px}
        .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
        .faq-intro p{color:#716875}
        .accordion{margin:0;border:0;background:transparent}
        .accordion-item{border:0;border-top:1px solid var(--line-dark);background:transparent}
        .accordion-title{padding:20px 42px 20px 0;border:0;background:transparent;color:var(--ink);font-size:16px;font-weight:700}
        .accordion-title:before{right:5px;color:var(--berry);font-size:20px}
        .accordion-title:hover{color:var(--berry)}
        .accordion-content{padding:0 42px 20px 0;border:0;background:transparent;color:#716875;font-size:14px}
        .contact-section{padding:78px 0;background:var(--berry);color:#fff}
        .contact-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
        .contact-section h2{font-size:clamp(30px,4vw,48px);line-height:1.2;margin:12px 0}
        .contact-section p{color:#e4d5df}
        .contact-note{margin-top:25px;padding-top:20px;border-top:1px solid rgba(255,255,255,.2);font-size:13px;color:#d6c4d1}
        .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:15px;padding:25px;border-radius:16px;background:var(--paper);color:var(--ink)}
        .field-full{grid-column:1/-1}
        .contact-form label{display:block;margin-bottom:6px;font-size:13px;font-weight:700}
        .contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid var(--line-dark);border-radius:8px;background:#fff;padding:11px 12px;color:var(--ink)}
        .contact-form input,.contact-form select{height:46px}
        .contact-form textarea{min-height:105px;resize:vertical}
        .form-tip{grid-column:1/-1;color:#817580;font-size:12px;margin:0}
        .site-footer{padding:52px 0 22px;background:var(--deep);color:#d9cedb}
        .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}
        .footer-brand p{max-width:270px;color:#a99eab;font-size:13px;margin-top:15px}
        .footer-title{margin:0 0 12px;color:#fff;font-size:14px}
        .footer-grid > div:not(.footer-brand) a{display:block;margin:8px 0;color:#a99eab;font-size:13px}
        .footer-grid > div:not(.footer-brand) a:hover{color:var(--coral)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid var(--line);color:#827685;font-size:12px}
        @media(max-width:900px){
            .hero-layout,.featured-layout,.metrics-layout,.contact-layout{grid-template-columns:1fr}
            .hero-panel{max-width:600px}
            .content-wall{grid-template-columns:1fr 1fr}
            .content-card:first-child{grid-column:1/-1}
            .faq-layout{grid-template-columns:1fr;gap:25px}
            .path-layout{grid-template-columns:1fr}
            .path-tabs{flex-direction:row;overflow:auto}
            .path-tab{white-space:nowrap}
        }
        @media(max-width:640px){
            .container{width:min(100% - 32px,1180px)}
            .site-header{padding:15px 0}
            .nav-shell{flex-wrap:wrap}
            .main-nav{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;padding:8px;border:1px solid var(--line);border-radius:10px;background:var(--deep)}
            .main-nav.is-open{display:flex}
            .main-nav a{padding:12px}
            .nav-search{margin-left:auto}
            .nav-search input{width:115px}
            .menu-toggle{display:block}
            .page-hero{padding:112px 0 48px}
            .hero-layout{gap:30px}
            .page-hero h1{font-size:42px}
            .section{padding:62px 0}
            .section-head{display:block}
            .section-head p{margin-top:14px}
            .featured-layout,.content-wall{grid-template-columns:1fr}
            .content-card:first-child{grid-column:auto}
            .feature-card{min-height:350px}
            .metric-track{grid-template-columns:1fr 1fr}
            .metric-box{padding:17px}
            .metric-box b{font-size:28px}
            .contact-form{grid-template-columns:1fr;padding:18px}
            .field-full,.form-tip{grid-column:auto}
            .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
            .footer-brand{grid-column:1/-1}
            .footer-bottom{display:block;line-height:2}
            .footer-bottom span{display:block}
        }

/* roulang page: category2 */
:root{
      --ink:#211c26;--deep:#18131c;--panel:#241c2b;--panel-2:#30233a;
      --berry:#762c59;--berry-light:#a74478;--coral:#f17d5f;--mint:#91d3bf;
      --cream:#f7f1ea;--paper:#fffaf5;--muted:#a99eab;--line:rgba(255,255,255,.12);
      --line-dark:rgba(33,28,38,.12);--radius:16px;--shadow:0 18px 45px rgba(20,12,27,.18);
      --ease:all .28s ease
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    .section{padding:92px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
    .section-head h2{margin:10px 0 0;font-size:clamp(28px,4vw,46px);line-height:1.18;letter-spacing:-.04em}
    .section-head p{max-width:500px;margin:0;color:#716875}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:700;cursor:pointer;transition:var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--coral);color:#28151b;box-shadow:0 8px 18px rgba(241,125,95,.2)}
    .btn-primary:hover{background:#ff9275}
    .btn-dark{background:var(--berry);color:#fff}
    .btn-dark:hover{background:var(--berry-light)}
    .btn-quiet{border-color:var(--line-dark);color:var(--ink);background:transparent}
    .btn-quiet:hover{border-color:var(--berry);color:var(--berry)}
    .tag{display:inline-flex;align-items:center;min-height:26px;padding:0 9px;border-radius:5px;background:rgba(145,211,191,.15);color:#38796d;font-size:12px;font-weight:700}
    .tag.warm{background:rgba(241,125,95,.14);color:#ba523b}
    .site-header{position:absolute;z-index:10;top:0;left:0;right:0;padding:22px 0}
    .nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:18px;font-weight:800;letter-spacing:-.04em}
    .brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:10px;background:var(--coral);color:var(--deep);font-weight:900}
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{padding:9px 14px;border-radius:7px;color:#d9cedb;font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.1)}
    .nav-search{display:flex;align-items:center;border:1px solid var(--line);background:rgba(24,19,28,.7);border-radius:8px;overflow:hidden}
    .nav-search input{width:170px;padding:9px 12px;border:0;outline:0;background:transparent;color:#fff;font-size:13px}
    .nav-search button{height:38px;padding:0 12px;border:0;background:var(--coral);color:var(--deep);cursor:pointer}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:#fff;border-radius:7px;padding:7px 10px}
    .page-hero{position:relative;overflow:hidden;padding:142px 0 72px;background:var(--deep);color:#fff}
    .page-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 12%,rgba(118,44,89,.58),transparent 34%),linear-gradient(110deg,transparent 46%,rgba(241,125,95,.06) 46%,transparent 72%)}
    .hero-layout{position:relative;display:grid;grid-template-columns:45% 55%;gap:42px;align-items:center}
    .crumbs{margin-bottom:22px;color:#b8abb9;font-size:13px}
    .crumbs a{color:var(--mint)}
    .hero-copy h1{max-width:590px;margin:12px 0 20px;font-size:clamp(39px,5.7vw,70px);line-height:1.08;letter-spacing:-.065em}
    .hero-copy h1 strong{color:var(--coral)}
    .hero-copy p{max-width:520px;margin:0 0 26px;color:#cfc2d0;font-size:17px;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .hero-note{display:flex;gap:18px;margin-top:30px;color:#b8abb9;font-size:13px}
    .hero-note b{display:block;color:#fff;font-size:21px;line-height:1.25}
    .filter-board{padding:24px;border:1px solid var(--line);border-radius:22px;background:#211824;box-shadow:var(--shadow)}
    .board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;color:#d9cedb;font-size:13px}
    .status-dot{display:inline-flex;align-items:center;gap:7px;color:var(--mint)}
    .status-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
    .search-large{display:flex;margin-bottom:20px;border:1px solid rgba(255,255,255,.16);border-radius:9px;overflow:hidden;background:rgba(255,255,255,.05)}
    .search-large input{min-width:0;flex:1;padding:14px;border:0;background:transparent;color:#fff;outline:0}
    .search-large button{padding:0 18px;border:0;background:var(--coral);color:var(--deep);font-weight:700;cursor:pointer}
    .filter-line{padding:16px 0;border-top:1px solid var(--line)}
    .filter-label{display:block;margin-bottom:10px;color:#b8abb9;font-size:12px}
    .filter-options{display:flex;flex-wrap:wrap;gap:8px}
    .filter-option{padding:7px 11px;border:1px solid rgba(255,255,255,.14);border-radius:6px;color:#ddd1dd;background:transparent;font-size:13px;cursor:pointer;transition:var(--ease)}
    .filter-option:hover,.filter-option.selected{border-color:var(--coral);background:var(--berry);color:#fff}
    .filter-summary{display:flex;justify-content:space-between;margin-top:18px;color:#a99eab;font-size:12px}
    .filter-summary b{color:var(--coral)}
    .index-strip{padding:18px 0;background:var(--berry);color:#fff}
    .index-inner{display:flex;align-items:center;gap:20px;overflow:auto;white-space:nowrap}
    .index-inner strong{font-size:14px;color:var(--mint)}
    .index-inner a{padding:7px 12px;border:1px solid rgba(255,255,255,.2);border-radius:6px;color:#eadce8;font-size:13px}
    .index-inner a:hover,.index-inner a.active{background:var(--coral);border-color:var(--coral);color:var(--deep)}
    .browse-area{padding:88px 0}
    .browse-shell{display:grid;grid-template-columns:245px 1fr;gap:34px;align-items:start}
    .side-panel{position:sticky;top:20px;padding:24px;border-radius:var(--radius);background:var(--panel);color:#fff}
    .side-panel h3{margin:0 0 18px;font-size:20px}
    .side-panel p{margin:0 0 20px;color:#c8bac9;font-size:13px}
    .side-nav{display:flex;flex-direction:column;gap:8px}
    .side-nav a{padding:11px 13px;border-radius:8px;color:#cfc2d0;font-size:14px}
    .side-nav a:hover,.side-nav a.active{background:var(--berry-light);color:#fff}
    .result-head{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:20px}
    .result-head h2{margin:0;font-size:28px}
    .result-head span{color:#817783;font-size:13px}
    .content-matrix{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:15px}
    .content-card{position:relative;overflow:hidden;min-height:250px;padding:20px;border:1px solid var(--line-dark);border-radius:var(--radius);background:var(--paper);transition:var(--ease)}
    .content-card.large{grid-row:span 2;min-height:515px}
    .content-card:hover{border-color:var(--berry-light);transform:translateY(-4px);box-shadow:0 12px 25px rgba(48,27,45,.1)}
    .cover{position:relative;height:136px;margin:-20px -20px 17px;overflow:hidden;background:linear-gradient(135deg,#5d2e55,#d77b67 54%,#f4c395)}
    .large .cover{height:280px}
    .cover:before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(255,255,255,.18),transparent 35%),linear-gradient(0deg,rgba(23,14,28,.62),transparent 65%)}
    .cover:after{content:"▶";position:absolute;left:50%;top:50%;display:grid;place-items:center;width:45px;height:45px;border-radius:50%;transform:translate(-50%,-50%);background:rgba(241,125,95,.94);color:#29151c;font-size:16px}
    .cover.alt-one{background:linear-gradient(135deg,#3a5960,#a5c6ba 48%,#ed9b78)}
    .cover.alt-two{background:linear-gradient(135deg,#34233e,#934f77 55%,#f28d72)}
    .cover.alt-three{background:linear-gradient(135deg,#755b48,#d99a6d 48%,#f3d4a9)}
    .card-meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:9px;color:#887c87;font-size:12px}
    .content-card h3{margin:0 0 8px;font-size:19px;line-height:1.35}
    .content-card p{margin:0;color:#766c77;font-size:13px;line-height:1.65}
    .card-link{display:inline-flex;margin-top:18px;color:var(--berry);font-size:13px;font-weight:800}
    .card-link:hover{color:var(--coral)}
    .path-section{padding:90px 0;background:var(--paper)}
    .path-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:42px;align-items:start}
    .path-intro h2{margin:12px 0 15px;font-size:clamp(30px,4vw,45px);line-height:1.2}
    .path-intro p{color:#716875;max-width:430px}
    .path-list{display:grid;gap:12px}
    .path-item{display:grid;grid-template-columns:45px 1fr auto;gap:16px;align-items:center;padding:20px;border:1px solid var(--line-dark);border-radius:13px;background:var(--cream);transition:var(--ease)}
    .path-item:hover{border-color:var(--berry-light);background:#fff}
    .path-number{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--berry);color:#fff;font-weight:800}
    .path-item h3{margin:0;font-size:17px}
    .path-item p{margin:3px 0 0;color:#7b717b;font-size:13px}
    .path-item a{color:var(--berry);font-weight:700;font-size:13px}
    .faq-section{padding:90px 0}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
    .faq-layout h2{margin:12px 0;font-size:clamp(30px,4vw,43px);line-height:1.2}
    .faq-layout>div>p{color:#716875}
    .accordion{margin:0;background:transparent}
    .accordion-item{border:0;border-bottom:1px solid var(--line-dark);background:transparent}
    .accordion-title{padding:20px 38px 20px 0;border:0;color:var(--ink);font-size:16px;font-weight:800;background:transparent}
    .accordion-title:hover{color:var(--berry)}
    .accordion-title:before{right:4px;color:var(--berry)}
    .accordion-content{padding:0 30px 20px 0;border:0;background:transparent;color:#716875;font-size:14px}
    .contact-section{padding:80px 0}
    .contact-box{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;padding:44px;border-radius:22px;background:var(--panel);color:#fff}
    .contact-box h2{margin:12px 0;font-size:38px;line-height:1.2}
    .contact-box p{color:#c8bac9}
    .contact-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .contact-links a{padding:8px 12px;border:1px solid var(--line);border-radius:7px;color:#ded0de;font-size:13px}
    .contact-links a:hover{border-color:var(--coral);color:var(--coral)}
    .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .field.full{grid-column:1/-1}
    .field label{display:block;margin-bottom:6px;color:#d9cedb;font-size:13px}
    .field input,.field select,.field textarea{width:100%;border:1px solid rgba(255,255,255,.16);border-radius:8px;background:rgba(255,255,255,.06);color:#fff;padding:11px 13px;outline:0}
    .field select option{color:var(--ink)}
    .field textarea{min-height:105px;resize:vertical}
    .form-tip{grid-column:1/-1;color:#a99eab;font-size:12px}
    .site-footer{padding:55px 0 22px;background:var(--deep);color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}
    .footer-brand p{max-width:290px;margin-top:16px;color:#a99eab;font-size:13px}
    .footer-title{margin:0 0 13px;font-size:14px;color:var(--mint)}
    .footer-grid>div:not(.footer-brand) a{display:block;margin:8px 0;color:#b8abb9;font-size:13px}
    .footer-grid>div:not(.footer-brand) a:hover{color:var(--coral)}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;margin-top:42px;padding-top:18px;border-top:1px solid var(--line);color:#8e818f;font-size:12px}
    @media(max-width:900px){
      .nav-search{display:none}.hero-layout,.path-grid,.faq-layout,.contact-box{grid-template-columns:1fr}
      .hero-copy{padding-right:0}.filter-board{max-width:680px}.side-panel{position:static}
      .browse-shell{grid-template-columns:1fr}.side-nav{display:grid;grid-template-columns:repeat(4,1fr)}
      .content-matrix{grid-template-columns:1fr 1fr}.content-card.large{grid-row:auto;min-height:380px}.large .cover{height:190px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:640px){
      .container{width:min(100% - 30px,1180px)}.site-header{padding:15px 0}
      .main-nav{display:none;position:absolute;top:65px;left:15px;right:15px;flex-direction:column;align-items:stretch;padding:10px;background:var(--panel);border-radius:10px}
      .main-nav.open{display:flex}.main-nav a{padding:12px}.menu-toggle{display:block}
      .nav-shell>.brand{font-size:15px}.page-hero{padding:112px 0 48px}.hero-copy h1{font-size:42px}
      .hero-note{gap:12px}.filter-board{padding:17px}.search-large input{width:100%}
      .section,.browse-area,.path-section,.faq-section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:13px}
      .side-nav{grid-template-columns:1fr 1fr}.content-matrix{grid-template-columns:1fr}
      .content-card.large,.large .cover{min-height:0}.large .cover{height:190px}
      .path-item{grid-template-columns:38px 1fr}.path-item a{grid-column:2}.contact-box{padding:27px 20px}.contact-box h2{font-size:30px}
      .contact-form{grid-template-columns:1fr}.field.full,.form-tip{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }