/* roulang page: index */
:root{
      --ink:#221d27;
      --muted:#746c76;
      --purple:#6e3b78;
      --purple-dark:#4d2856;
      --coral:#d96b64;
      --apricot:#f3c7ac;
      --mist:#f7f5f7;
      --line:#e9e1e7;
      --white:#fff;
      --green:#557c6b;
      --radius-xl:30px;
      --radius-lg:23px;
      --radius-md:18px;
      --shadow:0 14px 36px rgba(50,30,55,.08);
      --shadow-hover:0 20px 44px rgba(50,30,55,.14);
      --gradient:linear-gradient(120deg,var(--purple),var(--coral));
      --ease:all .28s ease;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--mist);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid var(--apricot);outline-offset:3px}
    .container{width:min(1220px,calc(100% - 40px));margin:0 auto}
    .section{padding:96px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 6px rgba(217,107,100,.12)}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{letter-spacing:-.035em;line-height:1.2}
    h1{font-size:clamp(36px,5vw,54px);font-weight:800;margin-bottom:22px}
    h2{font-size:clamp(29px,3.5vw,38px);font-weight:800;margin-bottom:12px}
    h3{font-size:20px;font-weight:750;margin-bottom:10px}
    .section-intro{max-width:650px;color:var(--muted);margin-bottom:0}
    .text-link{color:var(--purple);font-weight:700;transition:var(--ease)}
    .text-link:hover{color:var(--coral)}

    .site-header{position:relative;z-index:20;padding-top:20px}
    .nav-shell{
      min-height:72px;
      display:flex;align-items:center;gap:22px;
      padding:12px 16px 12px 22px;
      background:rgba(255,255,255,.84);
      border:1px solid rgba(255,255,255,.9);
      border-radius:999px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
    }
    .brand{display:flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;color:var(--purple)}
    .brand-mark{width:32px;height:32px;border-radius:11px;background:var(--gradient);position:relative;display:grid;place-items:center;color:#fff}
    .brand-mark::after{content:"";width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid #fff;margin-left:3px}
    .brand-name{font-size:15px;letter-spacing:-.03em}
    .desktop-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .desktop-nav a,.mobile-trigger{min-height:44px;display:inline-flex;align-items:center;padding:8px 15px;border-radius:999px;color:#5e5662;font-size:14px;font-weight:650;transition:var(--ease)}
    .desktop-nav a:hover{color:var(--purple);background:#f3edf4}
    .desktop-nav a.active{color:var(--purple);background:#f0e7f1;box-shadow:inset 0 -2px var(--coral)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-trigger{display:none;border:1px solid var(--line);background:#fff;color:var(--purple)}
    .nav-age{font-size:12px;color:var(--muted);white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:12px 21px;border-radius:999px;border:1px solid transparent;font-weight:750;font-size:14px;transition:var(--ease)}
    .btn-primary{color:#fff;background:var(--gradient);box-shadow:0 10px 22px rgba(110,59,120,.2)}
    .btn-primary:hover{transform:translateY(-2px);filter:saturate(1.12);box-shadow:0 15px 28px rgba(110,59,120,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{color:var(--purple);background:#fff;border-color:var(--line)}
    .btn-secondary:hover{border-color:var(--purple);background:#f8f0f8}
    .btn-small{min-height:40px;padding:9px 16px;font-size:13px}

    .hero-wrap{position:relative;overflow:hidden;padding:72px 0 56px;background:radial-gradient(circle at 76% 20%,rgba(243,199,172,.6),transparent 24%),radial-gradient(circle at 12% 15%,rgba(207,181,214,.55),transparent 29%)}
    .hero-wrap::before,.hero-wrap::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none}
    .hero-wrap::before{width:280px;height:280px;background:rgba(110,59,120,.1);right:-80px;top:110px}
    .hero-wrap::after{width:160px;height:160px;background:rgba(217,107,100,.12);left:40%;bottom:-70px}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.03fr .97fr;gap:60px;align-items:center}
    .hero-copy{max-width:650px}
    .hero-copy p{font-size:17px;color:var(--muted);max-width:600px;margin-bottom:26px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
    .hero-note{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
    .status-dot{width:9px;height:9px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(85,124,107,.12)}
    .topic-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
    .tag{display:inline-flex;align-items:center;min-height:31px;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-size:12px;font-weight:700}
    .tag.accent{background:#faeee9;color:#9f514c;border-color:#f4d8ca}
    .dashboard{position:relative;min-height:430px}
    .panel-main{position:absolute;inset:20px 30px 28px 0;padding:28px;background:rgba(255,255,255,.94);border:1px solid #fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-hover);transform:rotate(1deg)}
    .panel-main h3{font-size:22px;margin-bottom:7px}
    .panel-subtitle{color:var(--muted);font-size:13px;margin-bottom:24px}
    .heat-row{display:grid;grid-template-columns:1.2fr .8fr;gap:14px;margin-bottom:16px}
    .heat-card{padding:17px;border-radius:18px;background:#f8f3f8;border:1px solid #eee4ef}
    .heat-number{display:block;font-size:31px;font-weight:800;line-height:1;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px}
    .heat-label{font-size:12px;color:var(--muted);font-weight:650}
    .trend-box{padding:16px;border-radius:18px;background:#fff7f2;border:1px solid #f5ddd1}
    .trend-box small{display:block;color:var(--muted);font-weight:700;margin-bottom:9px}
    .trend-line{height:42px;display:flex;align-items:end;gap:5px}
    .trend-line i{display:block;width:9px;border-radius:8px 8px 3px 3px;background:var(--gradient)}
    .trend-line i:nth-child(1){height:16px}.trend-line i:nth-child(2){height:24px}.trend-line i:nth-child(3){height:19px}.trend-line i:nth-child(4){height:33px}.trend-line i:nth-child(5){height:28px}.trend-line i:nth-child(6){height:39px}
    .panel-list{display:grid;gap:10px;padding-top:4px}
    .panel-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}
    .panel-item:last-child{border-bottom:0}
    .panel-item strong{font-size:13px}
    .panel-item span{color:var(--muted);font-size:12px}
    .panel-back{position:absolute;right:0;top:0;width:170px;height:150px;background:#eaddeb;border-radius:24px;transform:rotate(8deg);z-index:-1}
    .panel-back-two{position:absolute;right:15px;bottom:0;width:200px;height:120px;background:#f7ddd1;border-radius:24px;transform:rotate(-5deg);z-index:-2}

    .metrics{padding-top:38px}
    .metric-grid{display:grid;grid-template-columns:1.45fr .85fr .85fr 1fr;gap:16px}
    .metric-card{min-height:164px;padding:22px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:var(--ease)}
    .metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .metric-card.wide{background:linear-gradient(135deg,#fff 10%,#fbf1f7 100%)}
    .metric-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
    .metric-index{font-size:12px;font-weight:800;color:var(--purple);letter-spacing:.08em}
    .metric-pulse{width:10px;height:10px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 6px rgba(217,107,100,.12)}
    .metric-value{font-size:33px;font-weight:850;line-height:1.05;margin-bottom:9px;color:var(--purple)}
    .metric-card.wide .metric-value{font-size:40px;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
    .metric-card p{font-size:13px;line-height:1.55;color:var(--muted);margin:0}
    .metric-foot{margin-top:13px;display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:var(--green)}

    .matrix-section{background:linear-gradient(180deg,transparent 0,#f1ecf1 48%,transparent 100%)}
    .matrix-layout{display:grid;grid-template-columns:275px 1fr;gap:28px;align-items:start}
    .index-card{position:sticky;top:100px;padding:21px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
    .index-card h3{font-size:18px;margin-bottom:8px}
    .index-card p{font-size:13px;color:var(--muted);margin-bottom:17px}
    .index-list{display:grid;gap:7px}
    .index-list a{display:flex;align-items:center;gap:10px;padding:11px 10px;border-radius:13px;color:var(--muted);font-size:13px;font-weight:700;transition:var(--ease)}
    .index-list a:hover,.index-list a.active{color:var(--purple);background:#f3ebf4}
    .index-list b{display:grid;place-items:center;flex:0 0 25px;height:25px;border-radius:50%;font-size:11px;color:var(--purple);background:#f0e3f0}
    .index-list a.active b{color:#fff;background:var(--gradient)}
    .content-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:17px}
    .content-card{position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:310px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--ease)}
    .content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
    .content-card:hover .cover-art{transform:scale(1.035)}
    .content-card.featured{grid-row:span 2;min-height:635px}
    .content-card.notice{min-height:190px;grid-column:span 2;background:linear-gradient(130deg,#fff7f4,#f7edf8)}
    .cover-art{height:142px;flex:0 0 142px;position:relative;overflow:hidden;border-radius:16px;margin-bottom:18px;background:linear-gradient(135deg,#7a4b82,#d9796c);transition:transform .4s ease}
    .featured .cover-art{height:285px;flex-basis:285px}
    .cover-art::before,.cover-art::after{content:"";position:absolute;border-radius:50%;filter:blur(2px)}
    .cover-art::before{width:150px;height:150px;background:rgba(255,238,209,.47);top:-40px;left:18px}
    .cover-art::after{width:180px;height:180px;background:rgba(43,26,64,.34);bottom:-82px;right:-35px}
    .art-2{background:linear-gradient(135deg,#bd7884,#6c4776)}
    .art-3{background:linear-gradient(135deg,#6e3b78,#cf9b9e)}
    .play-mark{position:absolute;z-index:2;display:grid;place-items:center;width:45px;height:45px;right:15px;bottom:14px;border-radius:50%;background:rgba(255,255,255,.88);box-shadow:0 8px 18px rgba(34,29,39,.18)}
    .play-mark::after{content:"";width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid var(--purple);margin-left:3px}
    .card-badge{display:inline-flex;align-items:center;align-self:flex-start;padding:5px 10px;border-radius:999px;background:#f3e8f4;color:var(--purple);font-size:11px;font-weight:800;margin-bottom:11px}
    .content-card h3{font-size:21px}
    .content-card p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:17px}
    .card-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;color:var(--muted);font-size:12px}
    .card-go{position:absolute;right:20px;bottom:18px;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;color:var(--purple);background:#f4edf5;font-size:18px;transition:var(--ease)}
    .content-card:hover .card-go{transform:translateX(4px);background:var(--purple);color:#fff}
    .notice-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%}
    .notice-inner h3{margin-bottom:7px}
    .notice-inner p{margin:0;max-width:540px}

    .compare-card{padding:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .compare-grid{display:grid;grid-template-columns:1fr 82px 1fr;align-items:center;gap:20px}
    .compare-pane{min-height:330px;padding:24px;border-radius:21px}
    .compare-pane.before{background:#f6f2f5;color:#817983}
    .compare-pane.after{background:linear-gradient(145deg,#f7edf8,#fff8f5);border:1px solid #e8d5e9}
    .compare-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
    .compare-title h3{margin:0;font-size:18px}
    .compare-title span{font-size:11px;padding:4px 9px;border-radius:999px;background:#fff;color:var(--muted);font-weight:700}
    .browse-line{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid rgba(116,108,118,.16)}
    .browse-line:last-child{border-bottom:0}
    .line-thumb{width:50px;height:38px;flex:0 0 50px;border-radius:10px;background:#ddd3df}
    .after .line-thumb{background:linear-gradient(135deg,#6e3b78,#dc8070)}
    .line-copy{min-width:0;flex:1}
    .line-copy b{display:block;font-size:13px;color:inherit;line-height:1.4}
    .after .line-copy b{color:var(--ink)}
    .line-copy small{display:block;margin-top:3px;font-size:11px;color:inherit}
    .filter-row{display:flex;gap:6px;margin-bottom:15px;flex-wrap:wrap}
    .filter-chip{padding:5px 9px;border-radius:999px;font-size:11px;font-weight:750;background:#fff;color:var(--purple);border:1px solid #ebdceb}
    .compare-arrow{display:grid;place-items:center;width:58px;height:58px;margin:auto;border-radius:50%;color:#fff;background:var(--gradient);font-size:25px;box-shadow:0 10px 20px rgba(110,59,120,.22)}

    .faq-section{padding-bottom:82px}
    .faq-wrap{max-width:910px;margin:auto}
    .faq-wrap .section-head{display:block;text-align:center}
    .faq-wrap .section-intro{margin:0 auto}
    .accordion{background:transparent;margin:0}
    .accordion-item{margin-bottom:12px;border:1px solid var(--line);border-radius:17px;overflow:hidden;background:#fff;box-shadow:0 6px 17px rgba(50,30,55,.035)}
    .accordion-title{position:relative;border:0!important;padding:18px 54px 18px 20px!important;color:var(--ink)!important;font-size:15px;font-weight:750;line-height:1.5;background:#fff;transition:var(--ease)}
    .accordion-title:hover,.accordion-title:focus{background:#f8f1f8;color:var(--purple)!important}
    .accordion-title::before{content:"+"!important;right:20px!important;margin-top:-13px!important;font-size:26px!important;font-weight:400;color:var(--purple)}
    .is-active>.accordion-title{background:#f8f1f8;color:var(--purple)!important}
    .is-active>.accordion-title::before{content:"−"!important}
    .accordion-content{border:0!important;padding:0 20px 20px!important;background:#f8f1f8;color:#5f5762;font-size:14px;line-height:1.8}
    .question-tag{display:inline-block;margin-right:8px;padding:3px 8px;border-radius:999px;background:#fae9df;color:#a75950;font-size:11px;vertical-align:1px}

    .cta-section{padding-top:0}
    .cta-shell{padding:42px;background:linear-gradient(130deg,#2d2433,#4c2d55);border-radius:var(--radius-xl);box-shadow:var(--shadow-hover);color:#fff;overflow:hidden;position:relative}
    .cta-shell::before{content:"";position:absolute;width:330px;height:330px;right:-120px;top:-170px;border-radius:50%;background:radial-gradient(circle,rgba(217,107,100,.55),transparent 67%)}
    .cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:.92fr 1.08fr;gap:42px;align-items:center}
    .cta-copy h2{font-size:34px;margin-bottom:14px}
    .cta-copy p{color:#d8cdda;font-size:15px}
    .cta-points{display:grid;gap:10px;margin-top:22px}
    .cta-point{display:flex;align-items:center;gap:10px;color:#eadfe9;font-size:13px}
    .cta-point i{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:rgba(243,199,172,.18);color:var(--apricot);font-style:normal}
    .preference-form{padding:24px;background:#fff;border-radius:22px;color:var(--ink)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .field{margin-bottom:13px}
    .field.full{grid-column:span 2}
    label{display:block;margin-bottom:6px;color:#5a515d;font-size:12px;font-weight:750}
    input,select,textarea{width:100%;border:1px solid #e6dfe7!important;border-radius:13px!important;background:#f8f5f8!important;color:var(--ink)!important;font-size:16px!important;box-shadow:none!important;transition:var(--ease)}
    input,select{height:47px!important;padding:10px 13px!important}
    textarea{min-height:76px;padding:11px 13px!important;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--purple)!important;background:#fff!important;box-shadow:0 0 0 4px rgba(110,59,120,.12)!important}
    .form-submit{width:100%;border:0}
    .form-note{margin:10px 0 0;color:var(--muted);font-size:11px;line-height:1.65}

    .site-footer{margin-top:96px;background:var(--ink);color:#fff;padding:64px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .9fr;gap:42px;padding-bottom:45px}
    .footer-brand .brand{color:#fff;margin-bottom:14px}
    .footer-brand .brand-mark{box-shadow:none}
    .footer-brand p{max-width:390px;color:#c9bdcb;font-size:13px;line-height:1.75}
    .age-link{display:inline-flex;align-items:center;gap:8px;margin-top:6px;color:var(--apricot);font-size:13px;font-weight:750}
    .footer-column h3{margin-bottom:14px;font-size:15px;color:#f7eaf1}
    .footer-column a{display:block;width:max-content;max-width:100%;padding:5px 0;color:#c9bdcb;font-size:13px;transition:var(--ease)}
    .footer-column a:hover{color:var(--apricot);transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#a99aaa;font-size:12px}
    .footer-bottom span:last-child{text-align:right}

    .reveal{border:0;border-radius:24px;padding:0;overflow:hidden;box-shadow:var(--shadow-hover)}
    .age-modal{padding:34px;background:#fff;text-align:center}
    .age-modal h2{font-size:27px}
    .age-modal p{color:var(--muted);font-size:14px}
    .age-modal .modal-actions{display:flex;justify-content:center;gap:10px;margin-top:22px}
    .mobile-menu{display:none}

    @media(max-width:1024px){
      .hero-grid{gap:34px}
      .metric-grid{grid-template-columns:1fr 1fr}
      .matrix-layout{grid-template-columns:1fr}
      .index-card{position:static;display:flex;align-items:center;gap:18px}
      .index-card>div:first-child{min-width:220px}
      .index-list{display:flex;flex-wrap:wrap}
      .index-list a{padding:8px}
      .index-list b{display:none}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:900px){
      .desktop-nav,.nav-age{display:none}
      .mobile-trigger{display:inline-flex;margin-left:auto}
      .nav-actions{margin-left:0}
      .nav-actions .btn{display:none}
      .mobile-menu{display:none;margin-top:10px;padding:12px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
      .mobile-menu.is-open{display:grid;gap:6px}
      .mobile-menu a{padding:12px 14px;border-radius:12px;font-size:14px;font-weight:700;color:#5e5662}
      .mobile-menu a:hover,.mobile-menu a.active{background:#f3ebf4;color:var(--purple)}
      .mobile-menu .btn{margin-top:5px}
    }
    @media(max-width:768px){
      .section{padding:66px 0}
      .hero-wrap{padding-top:52px}
      .hero-grid{grid-template-columns:1fr}
      .dashboard{min-height:380px;max-width:570px;width:100%}
      .section-head{display:block;margin-bottom:25px}
      .section-intro{margin-top:10px}
      .content-grid{grid-template-columns:1fr 1fr}
      .content-card.featured{grid-row:auto;grid-column:span 2;min-height:500px}
      .compare-grid{grid-template-columns:1fr;gap:15px}
      .compare-arrow{transform:rotate(90deg)}
      .cta-grid{grid-template-columns:1fr;gap:28px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:span 2}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1220px)}
      .site-header{padding-top:14px}
      .nav-shell{min-height:62px;padding:9px 11px 9px 15px}
      .brand-mark{width:29px;height:29px}
      .brand-name{font-size:13px}
      .hero-copy p{font-size:15px}
      .hero-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .btn{width:100%}
      .dashboard{min-height:355px}
      .panel-main{inset:18px 10px 25px 0;padding:21px}
      .metric-grid{grid-template-columns:1fr}
      .metric-card{min-height:135px}
      .index-card{display:block;padding:18px}
      .index-card>div:first-child{min-width:0}
      .index-list{display:grid;grid-template-columns:1fr 1fr}
      .content-grid{grid-template-columns:1fr}
      .content-card.featured,.content-card.notice{grid-column:auto}
      .content-card.featured{min-height:410px}
      .featured .cover-art{height:205px;flex-basis:205px}
      .notice-inner{display:block}
      .notice-inner .btn{margin-top:16px;width:100%}
      .compare-card{padding:16px}
      .compare-pane{padding:18px;min-height:280px}
      .cta-shell{padding:27px 18px}
      .cta-copy h2{font-size:28px}
      .preference-form{padding:18px}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block;line-height:1.8}
      .footer-bottom span:last-child{text-align:left;display:block;margin-top:5px}
      .age-modal{padding:27px 20px}
      .age-modal .modal-actions{display:grid}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
      .content-card:hover,.metric-card:hover,.btn-primary:hover{transform:none}
    }

/* roulang page: category1 */
:root{
      --ink:#221d27;
      --muted:#746c76;
      --purple:#6e3b78;
      --purple-dark:#4d2856;
      --coral:#d96b64;
      --apricot:#f3c7ac;
      --mist:#f7f5f7;
      --line:#e9e1e7;
      --white:#fff;
      --green:#557c6b;
      --radius-xl:30px;
      --radius-lg:23px;
      --radius-md:18px;
      --shadow:0 14px 36px rgba(50,30,55,.08);
      --shadow-hover:0 20px 44px rgba(50,30,55,.14);
      --gradient:linear-gradient(120deg,var(--purple),var(--coral));
      --ease:all .28s ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--mist);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25;letter-spacing:-.035em}
    h1{font-size:clamp(34px,4vw,48px);margin-bottom:18px;font-weight:800}
    h2{font-size:clamp(28px,3vw,35px);margin-bottom:14px;font-weight:800}
    h3{font-size:20px;margin-bottom:9px;font-weight:750}
    .container{width:min(1220px,calc(100% - 40px));margin:0 auto}
    .site-header{position:relative;z-index:20;padding-top:20px}
    .nav-shell{
      min-height:72px;display:flex;align-items:center;gap:22px;
      padding:12px 16px 12px 22px;background:rgba(255,255,255,.86);
      border:1px solid rgba(255,255,255,.95);border-radius:999px;
      box-shadow:var(--shadow);backdrop-filter:blur(18px)
    }
    .brand{display:flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;color:var(--purple)}
    .brand-mark{width:32px;height:32px;border-radius:11px;background:var(--gradient);position:relative;display:grid;place-items:center}
    .brand-mark::after{content:"";width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid #fff;margin-left:3px}
    .brand-name{font-size:15px;letter-spacing:-.03em}
    .desktop-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .desktop-nav a,.mobile-trigger{min-height:44px;display:inline-flex;align-items:center;padding:8px 15px;border-radius:999px;color:#5e5662;font-size:14px;font-weight:650;transition:var(--ease)}
    .desktop-nav a:hover{color:var(--purple);background:#f3edf4}
    .desktop-nav a.active{color:var(--purple);background:#f0e7f1;box-shadow:inset 0 -2px var(--coral)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-age{font-size:12px;color:var(--muted);white-space:nowrap}
    .mobile-trigger{display:none;border:1px solid var(--line);background:#fff;color:var(--purple)}
    .mobile-menu{display:none;margin-top:10px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
    .mobile-menu.open{display:grid;gap:5px}
    .mobile-menu a{padding:12px 15px;border-radius:14px;color:var(--muted);font-weight:650}
    .mobile-menu a:hover,.mobile-menu a.active{background:#f3edf4;color:var(--purple)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:12px 21px;border-radius:999px;border:1px solid transparent;font-weight:750;font-size:14px;transition:var(--ease)}
    .btn-primary{color:#fff;background:var(--gradient);box-shadow:0 10px 22px rgba(110,59,120,.2)}
    .btn-primary:hover{transform:translateY(-2px);filter:saturate(1.12);box-shadow:0 15px 28px rgba(110,59,120,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{color:var(--purple);background:#fff;border-color:var(--line)}
    .btn-secondary:hover{border-color:var(--purple);background:#f8f0f8}
    .btn-small{min-height:40px;padding:9px 16px;font-size:13px}
    :focus-visible{outline:3px solid var(--apricot);outline-offset:3px}
    .page-hero{
      position:relative;overflow:hidden;padding:68px 0 58px;
      background:radial-gradient(circle at 78% 15%,rgba(243,199,172,.62),transparent 24%),radial-gradient(circle at 10% 20%,rgba(207,181,214,.58),transparent 31%)
    }
    .page-hero::after{content:"";position:absolute;width:260px;height:260px;right:-100px;bottom:-130px;border-radius:50%;background:rgba(110,59,120,.12);filter:blur(5px)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a{color:var(--purple);font-weight:700}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr .82fr;gap:60px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:14px}
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 6px rgba(217,107,100,.12)}
    .hero-copy p{max-width:650px;color:var(--muted);font-size:17px;margin-bottom:25px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
    .stat-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;color:var(--muted);box-shadow:0 6px 18px rgba(50,30,55,.05)}
    .stat-badge strong{color:var(--purple);font-size:16px}
    .collage{min-height:310px;position:relative}
    .tile{position:absolute;border-radius:24px;border:7px solid rgba(255,255,255,.75);box-shadow:var(--shadow-hover);overflow:hidden}
    .tile::before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(110,59,120,.92),rgba(217,107,100,.72));opacity:.82}
    .tile::after{content:"▶";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:52px;height:52px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.65);border-radius:50%;color:#fff;font-size:19px;padding-left:3px}
    .tile span{position:absolute;left:18px;bottom:14px;color:#fff;font-weight:700;font-size:13px;z-index:1}
    .tile-a{width:55%;height:205px;right:0;top:7px;background:linear-gradient(135deg,#caa9cd,#77477e)}
    .tile-b{width:54%;height:174px;left:3%;bottom:8px;background:linear-gradient(135deg,#efb99d,#6e3b78);transform:rotate(-5deg)}
    .tile-c{width:38%;height:126px;right:10%;bottom:0;background:linear-gradient(135deg,#9f739f,#dc8272);transform:rotate(5deg)}
    .filter-strip{padding:22px 0;background:#fff;border-bottom:1px solid var(--line)}
    .filter-line{display:flex;align-items:center;gap:15px;overflow-x:auto;scrollbar-width:none}
    .filter-line::-webkit-scrollbar{display:none}
    .filter-label{font-size:13px;font-weight:750;color:var(--purple);white-space:nowrap}
    .filter-chip{white-space:nowrap;padding:8px 15px;border-radius:999px;border:1px solid var(--line);background:#faf8fa;color:var(--muted);font-size:13px;transition:var(--ease)}
    .filter-chip:hover,.filter-chip.active{background:#f0e7f1;border-color:#d9bfdc;color:var(--purple)}
    .sort-box{margin-left:auto;display:flex;align-items:center;gap:8px;white-space:nowrap;color:var(--muted);font-size:13px}
    .sort-box select{border:1px solid var(--line);border-radius:999px;padding:8px 28px 8px 13px;color:var(--purple);background:#fff}
    .content-section{padding:76px 0 92px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head p{max-width:620px;color:var(--muted);margin:0}
    .browse-layout{display:grid;grid-template-columns:270px 1fr;gap:28px;align-items:start}
    .side-card{position:sticky;top:22px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
    .side-card h3{font-size:18px}
    .side-intro{font-size:13px;color:var(--muted);margin-bottom:17px}
    .side-list{display:grid;gap:8px;margin:0 0 23px;padding:0;list-style:none}
    .side-list a{display:flex;align-items:center;justify-content:space-between;padding:11px 12px;border-radius:13px;color:var(--muted);font-size:13px;transition:var(--ease)}
    .side-list a:hover,.side-list a.current{color:var(--purple);background:#f5edf5;font-weight:700}
    .side-list em{font-style:normal;font-size:11px;color:var(--coral)}
    .mini-rank{border-top:1px solid var(--line);padding-top:18px}
    .mini-rank-title{font-size:12px;color:var(--muted);margin-bottom:10px}
    .rank-item{display:flex;align-items:center;gap:9px;padding:8px 0;font-size:12px}
    .rank-number{width:22px;height:22px;display:grid;place-items:center;border-radius:8px;background:#f4eaf4;color:var(--purple);font-weight:800}
    .rank-item span:last-child{margin-left:auto;color:var(--muted)}
    .card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
    .browse-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--ease)}
    .browse-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
    .browse-card.featured{grid-column:1/-1;display:grid;grid-template-columns:.9fr 1.1fr}
    .cover{min-height:180px;position:relative;overflow:hidden;background:linear-gradient(135deg,#76527c,#dda08f)}
    .cover::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 25% 30%,rgba(255,255,255,.3),transparent 25%),linear-gradient(145deg,rgba(110,59,120,.45),rgba(217,107,100,.6))}
    .cover::after{content:"▶";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:45px;height:45px;border:1px solid rgba(255,255,255,.7);border-radius:50%;display:grid;place-items:center;color:#fff;padding-left:3px}
    .cover.tone-b{background:linear-gradient(135deg,#d7b1c5,#805080)}
    .cover.tone-c{background:linear-gradient(135deg,#ebc3a9,#9a6171)}
    .cover.tone-d{background:linear-gradient(135deg,#92759d,#e2a77f)}
    .cover.tone-e{background:linear-gradient(135deg,#c8909c,#64446f)}
    .cover-label{position:absolute;z-index:1;left:16px;bottom:14px;color:#fff;font-size:12px;font-weight:750}
    .card-body{padding:22px}
    .card-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
    .tag{display:inline-flex;align-items:center;min-height:29px;padding:4px 11px;border-radius:999px;background:#f5edf5;border:1px solid #eadceb;color:var(--purple);font-size:12px;font-weight:700}
    .tag.warm{background:#faeee9;border-color:#f3d8ca;color:#a35650}
    .browse-card h3{margin-bottom:8px}
    .browse-card p{font-size:14px;color:var(--muted);margin-bottom:17px}
    .meta-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
    .arrow-link{color:var(--purple);font-weight:750;transition:var(--ease)}
    .arrow-link:hover{color:var(--coral)}
    .info-card{grid-column:1/-1;padding:20px 23px;display:flex;align-items:center;gap:15px;background:#f1e8f2;border:1px solid #e3d3e5;border-radius:20px;color:var(--purple)}
    .info-icon{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:12px;background:#fff;color:var(--coral);font-weight:800}
    .info-card p{margin:0;color:#655769;font-size:13px}
    .pagination-wrap{display:flex;justify-content:center;margin-top:38px}
    .pagination{display:flex;gap:7px;margin:0}
    .pagination li{display:block}
    .pagination a,.pagination .current,.pagination .disabled{display:grid;place-items:center;min-width:42px;height:42px;border-radius:13px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px}
    .pagination .current{background:var(--gradient);border-color:transparent;color:#fff;font-weight:800}
    .pagination .disabled{opacity:.5}
    .faq-section{padding:82px 0;background:#fff}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px;align-items:start}
    .faq-note{color:var(--muted);font-size:15px}
    .accordion{margin:0;background:transparent}
    .accordion-item{margin-bottom:11px;border:1px solid var(--line);border-radius:17px;overflow:hidden;background:#fff}
    .accordion-title{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 21px;border:0;color:var(--ink);font-size:15px;font-weight:700;background:#fff}
    .accordion-title:hover{background:#faf5fa;color:var(--purple)}
    .accordion-title::before{position:static;order:2;content:"+";font-size:22px;color:var(--purple);transform:none}
    .is-active>.accordion-title{background:#f5edf5;color:var(--purple)}
    .is-active>.accordion-title::before{content:"−"}
    .accordion-content{padding:0 21px 19px;border:0;background:#f5edf5;color:var(--muted);font-size:14px}
    .compact-cta{padding:55px 0}
    .cta-card{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:34px 40px;border-radius:var(--radius-xl);background:var(--gradient);color:#fff;box-shadow:var(--shadow-hover)}
    .cta-card h2{margin-bottom:8px;font-size:29px}
    .cta-card p{margin:0;color:rgba(255,255,255,.82);font-size:14px}
    .cta-card .btn-secondary{border-color:rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.12)}
    .cta-card .btn-secondary:hover{background:#fff;color:var(--purple)}
    .site-footer{padding:58px 0 24px;background:var(--ink);color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr;gap:60px;padding-bottom:42px}
    .footer-brand .brand{color:#fff;margin-bottom:17px}
    .footer-brand p{max-width:450px;color:#bcb2bd;font-size:13px;margin-bottom:16px}
    .age-link{display:inline-flex;align-items:center;gap:7px;color:var(--apricot);font-size:13px;font-weight:700}
    .footer-column{display:grid;align-content:start;gap:9px}
    .footer-column h3{font-size:14px;color:#fff;margin-bottom:9px}
    .footer-column a{color:#bcb2bd;font-size:13px;transition:var(--ease)}
    .footer-column a:hover{color:var(--apricot)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:21px;border-top:1px solid rgba(255,255,255,.14);color:#a99eaa;font-size:12px}
    .age-dialog{display:none;position:fixed;inset:0;z-index:50;background:rgba(34,29,39,.62);place-items:center;padding:20px}
    .age-dialog.show{display:grid}
    .dialog-card{max-width:470px;padding:32px;background:#fff;border-radius:25px;box-shadow:var(--shadow-hover)}
    .dialog-card h2{font-size:27px}
    .dialog-card p{color:var(--muted);font-size:14px}
    .dialog-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
    @media (max-width:1023px){
      .hero-inner{grid-template-columns:1fr .85fr;gap:28px}
      .browse-layout{grid-template-columns:220px 1fr}
      .nav-age{display:none}
    }
    @media (max-width:899px){
      .desktop-nav{display:none}
      .mobile-trigger{display:inline-flex}
      .nav-actions .btn-primary{display:none}
      .hero-inner,.faq-layout{grid-template-columns:1fr}
      .collage{max-width:590px;width:100%;margin:0 auto}
      .side-card{position:static}
      .browse-layout{grid-template-columns:1fr}
      .side-list{display:flex;flex-wrap:wrap;margin-bottom:10px}
      .side-list a{border:1px solid var(--line)}
    }
    @media (max-width:767px){
      .container{width:min(100% - 28px,1220px)}
      .site-header{padding-top:12px}
      .nav-shell{min-height:62px;padding-left:15px}
      .brand-name{font-size:13px}
      .page-hero{padding:47px 0 42px}
      .hero-copy p{font-size:16px}
      .collage{min-height:245px}
      .tile-a{height:165px}
      .tile-b{height:140px}
      .tile-c{height:105px}
      .filter-line{padding-bottom:2px}
      .sort-box{margin-left:0}
      .content-section,.faq-section{padding:58px 0}
      .section-head{display:block;margin-bottom:23px}
      .section-head p{margin-top:12px}
      .card-grid{grid-template-columns:1fr}
      .browse-card.featured{grid-column:auto;display:block}
      .info-card{grid-column:auto;align-items:flex-start}
      .faq-layout{gap:24px}
      .cta-card{display:block;padding:28px 23px}
      .cta-card .btn{margin-top:20px;width:100%}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{display:grid;gap:8px}
    }
    @media (max-width:520px){
      h1{font-size:34px}
      .hero-actions .btn{width:100%}
      .hero-stats{display:grid;grid-template-columns:1fr 1fr}
      .stat-badge{justify-content:center}
      .card-body{padding:19px}
      .cover{min-height:165px}
      .sort-box{width:100%;justify-content:space-between;margin-top:8px}
      .sort-box select{flex:1}
    }
    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
      .browse-card:hover,.btn-primary:hover{transform:none}
    }