/* roulang page: index */
:root{
      --plum:#24131f;
      --plum-2:#351b2b;
      --plum-3:#512638;
      --coral:#f27857;
      --orange:#ff9a62;
      --cream:#fbf4e9;
      --paper:#fffaf3;
      --sand:#efe2d2;
      --ink:#2a2023;
      --muted:#806f6b;
      --line:#e4d4c7;
      --teal:#789d91;
      --shadow:0 18px 50px rgba(54,29,35,.10);
      --radius:22px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--cream);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{text-decoration:none;color:inherit}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
    .site-header{position:absolute;z-index:20;top:22px;left:0;right:0}
    .nav-shell{
      display:flex;align-items:center;gap:22px;min-height:66px;padding:10px 14px 10px 22px;
      background:rgba(36,19,31,.94);border:1px solid rgba(255,255,255,.14);
      border-radius:999px;box-shadow:0 14px 34px rgba(22,10,17,.22)
    }
    .brand{display:flex;align-items:center;gap:10px;color:#fffaf3;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
    .brand-mark{width:30px;height:30px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-size:14px}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a,.nav-action{
      color:#eaded7;padding:9px 15px;border-radius:999px;font-size:14px;transition:.25s ease;border:1px solid transparent
    }
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--coral);color:var(--plum);outline:none}
    .nav-action{border-color:rgba(255,255,255,.22);display:inline-flex;align-items:center;gap:7px}
    .nav-action:hover,.nav-action:focus{border-color:var(--orange);color:#fff;background:rgba(242,120,87,.12);outline:none}
    .menu-toggle{display:none;background:transparent;border:0;color:#fff;padding:8px}
    .hero{
      position:relative;overflow:hidden;padding:164px 0 96px;background:var(--plum);color:#fffaf3
    }
    .hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(242,120,87,.22);border-radius:50%}
    .hero:before{width:520px;height:520px;right:-160px;top:70px}
    .hero:after{width:260px;height:260px;right:40px;top:190px}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,6vw,78px);line-height:1.12;letter-spacing:-.065em;margin:20px 0 24px;max-width:760px}
    .hero-copy{font-size:18px;color:#dbcac5;max-width:670px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:999px;font-weight:700;border:1px solid transparent;transition:.25s ease}
    .btn-primary{background:var(--coral);color:var(--plum)}
    .btn-primary:hover{background:var(--orange);transform:translateY(-2px);box-shadow:0 10px 22px rgba(242,120,87,.25)}
    .btn-secondary{color:#fffaf3;border-color:rgba(255,255,255,.28)}
    .btn-secondary:hover{background:#fffaf3;color:var(--plum);transform:translateY(-2px)}
    .btn:focus,input:focus,select:focus,summary:focus{outline:3px solid rgba(255,154,98,.55);outline-offset:3px}
    .hero-note{margin-top:22px;color:#bdaaa8;font-size:13px}
    .index-board{background:#fff8ee;color:var(--ink);border-radius:28px;padding:26px;box-shadow:0 25px 70px rgba(0,0,0,.22);transform:rotate(1.3deg)}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:20px}
    .board-title{font-size:18px;font-weight:800}
    .status{font-size:12px;color:#427566;background:#dfeee7;border-radius:999px;padding:5px 10px}
    .board-feature{background:var(--plum-2);border-radius:18px;padding:22px;color:#fff8ee;margin-bottom:14px}
    .board-feature strong{font-size:25px;display:block;line-height:1.3}
    .board-feature span{font-size:13px;color:#d9c4c6}
    .board-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .board-cell{padding:16px;border:1px solid var(--line);border-radius:16px;background:#fffdf9}
    .board-cell b{font-size:25px;display:block;color:var(--plum)}
    .board-cell small{color:var(--muted);font-size:12px}
    .section{padding:92px 0}
    .section.alt{background:var(--paper)}
    .section.dark{background:var(--plum);color:#fff8ee}
    .section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:36px}
    .section-heading h2{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.05em;margin:12px 0 0}
    .section-heading p{max-width:500px;color:var(--muted);margin:0}
    .dark .section-heading p{color:#cbb6b4}
    .stats-grid{display:grid;grid-template-columns:1.25fr .95fr 1fr 1.15fr;gap:14px}
    .stat{padding:24px;border:1px solid var(--line);border-radius:18px;background:#fffaf4;min-height:138px}
    .stat:nth-child(2){transform:translateY(18px);background:#f6e4d7}
    .stat:nth-child(3){background:#e6eee8}
    .stat-number{font-size:34px;font-weight:850;letter-spacing:-.05em;color:var(--plum)}
    .stat-label{font-weight:700;margin-top:4px}
    .stat small{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .matrix{display:grid;grid-template-columns:1.25fr .75fr .9fr;grid-template-rows:auto auto;gap:16px}
    .matrix-card{border-radius:var(--radius);padding:26px;border:1px solid var(--line);background:#fffaf4;transition:.25s ease}
    .matrix-card:hover{transform:translateY(-5px);border-color:var(--coral);box-shadow:var(--shadow)}
    .matrix-card.large{grid-row:span 2;background:var(--plum);color:#fff8ee;min-height:310px;display:flex;flex-direction:column;justify-content:space-between}
    .matrix-card.teal{background:#e3eee8}
    .matrix-card.orange{background:#f9dfcf}
    .matrix-card h3{font-size:22px;line-height:1.35;margin:14px 0 9px}
    .matrix-card p{font-size:14px;color:var(--muted);margin-bottom:18px}
    .large p{color:#d4c0c0}
    .tag{display:inline-flex;border-radius:999px;padding:5px 10px;background:#f2e5da;color:var(--plum);font-size:12px;font-weight:700}
    .large .tag{background:var(--coral)}
    .arrow{font-size:20px;color:var(--coral)}
    .updates-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .update-list,.feature-update{border:1px solid var(--line);border-radius:var(--radius);background:#fffaf4;padding:10px}
    .update-item{display:flex;gap:18px;align-items:center;padding:20px;border-bottom:1px solid var(--line)}
    .update-item:last-child{border-bottom:0}
    .update-index{font-size:24px;font-weight:800;color:var(--coral);width:38px}
    .update-item h3{font-size:16px;margin:0 0 4px}
    .update-item p{font-size:13px;color:var(--muted);margin:0}
    .feature-update{padding:30px;background:var(--plum-2);color:#fff8ee;display:flex;flex-direction:column;justify-content:space-between;min-height:360px}
    .feature-update h3{font-size:29px;line-height:1.35;margin:18px 0}
    .feature-update p{color:#d9c5c2}
    .compare{display:grid;grid-template-columns:1fr 70px 1fr;align-items:stretch;gap:16px}
    .compare-box{padding:28px;border-radius:20px;border:1px solid var(--line);background:#fffaf4}
    .compare-box.good{border-color:var(--coral);background:#fff0e7}
    .compare-box h3{margin:0 0 17px;font-size:20px}
    .compare-box ul{list-style:none;padding:0;margin:0}
    .compare-box li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--muted)}
    .compare-box li:last-child{border:0}
    .compare-mark{display:grid;place-items:center;font-weight:800;color:var(--coral);font-size:24px}
    .device-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}
    .device-copy h2{font-size:clamp(30px,4vw,46px);line-height:1.2;letter-spacing:-.05em}
    .device-copy p{color:var(--muted);max-width:550px}
    .device-panel{background:var(--plum-2);padding:26px;border-radius:28px;color:#fff8ee;display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .device-tile{border:1px solid rgba(255,255,255,.15);border-radius:17px;padding:20px;min-height:130px}
    .device-tile strong{display:block;font-size:18px;margin:14px 0 5px}
    .device-tile span{font-size:13px;color:#d1bcba}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}
    .faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:20px 0}
    summary{cursor:pointer;list-style:none;font-weight:750;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--coral);font-size:22px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:12px 30px 0 0}
    .cta{padding:72px 0;background:var(--coral);color:var(--plum)}
    .cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
    .cta h2{font-size:clamp(30px,4vw,50px);line-height:1.2;letter-spacing:-.05em;margin-bottom:15px}
    .cta p{max-width:580px}
    .search-form{background:#fff8ee;border-radius:20px;padding:20px;display:flex;gap:10px}
    .search-form label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
    .search-form input,.search-form select{min-width:0;flex:1;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px 14px;color:var(--ink)}
    .search-form button{border:0}
    footer{background:var(--plum);color:#fff8ee;padding:58px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:50px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.14)}
    footer h3{font-size:18px;margin:0 0 15px}
    footer p,footer li{color:#cbb9b6;font-size:13px}
    footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    footer a{color:#d9c6c2;transition:.2s}
    footer a:hover,footer a:focus{color:var(--orange);outline:none}
    .footer-brand{font-size:22px;font-weight:800;display:block;margin-bottom:15px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:24px;color:#a99492;font-size:12px}
    .age-badge{display:inline-flex;align-items:center;padding:7px 12px;border:1px solid rgba(255,255,255,.2);border-radius:999px;color:#ffd1b7}
    .notice{position:fixed;inset:0;background:rgba(25,12,20,.78);z-index:50;display:grid;place-items:center;padding:20px}
    .notice-box{max-width:460px;background:var(--paper);border-radius:24px;padding:32px;box-shadow:0 25px 80px rgba(0,0,0,.3)}
    .notice-box h2{font-size:28px;margin-bottom:12px}
    .notice-box p{color:var(--muted);font-size:14px}
    .notice-actions{display:flex;gap:10px;margin-top:23px}
    .hidden{display:none!important}
    @media(max-width:1024px){
      .hero-grid,.device-section,.faq-wrap{gap:35px}
      .stats-grid{grid-template-columns:1fr 1fr}
      .matrix{grid-template-columns:1fr 1fr}
      .matrix-card.large{grid-row:auto;grid-column:span 2}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .site-header{top:12px}
      .nav-shell{border-radius:20px;padding:10px 14px}
      .brand{font-size:14px}
      .brand-mark{width:27px;height:27px}
      .menu-toggle{display:block;margin-left:auto}
      .nav-links{display:none;position:absolute;top:76px;left:0;right:0;background:var(--plum);padding:10px;border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{text-align:center}
      .nav-action{display:none}
      .hero{padding:132px 0 70px}
      .hero-grid,.updates-grid,.device-section,.faq-wrap,.cta-grid{grid-template-columns:1fr}
      h1{font-size:47px}
      .hero-copy{font-size:16px}
      .section{padding:65px 0}
      .section-heading{display:block}
      .section-heading p{margin-top:14px}
      .matrix{grid-template-columns:1fr}
      .matrix-card.large{grid-column:auto}
      .compare{grid-template-columns:1fr}
      .compare-mark{height:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:span 2}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:10px}
    }
    @media(max-width:520px){
      .stats-grid{grid-template-columns:1fr 1fr;gap:9px}
      .stat{padding:16px;min-height:125px}
      .stat:nth-child(2){transform:none}
      .stat-number{font-size:27px}
      .board-row,.device-panel{grid-template-columns:1fr}
      .hero-actions,.search-form{flex-direction:column}
      .btn{width:100%}
      .search-form input,.search-form select{width:100%}
      h1{font-size:40px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }

/* roulang page: category1 */
:root{
 --plum:#24131f;--plum-2:#351b2b;--plum-3:#512638;--coral:#f27857;
 --orange:#ff9a62;--cream:#fbf4e9;--paper:#fffaf3;--sand:#efe2d2;
 --ink:#2a2023;--muted:#806f6b;--line:#e4d4c7;--teal:#789d91;
 --shadow:0 18px 50px rgba(54,29,35,.10);--radius:22px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{position:absolute;z-index:20;top:22px;left:0;right:0}
.nav-shell{display:flex;align-items:center;gap:22px;min-height:66px;padding:10px 14px 10px 22px;background:rgba(36,19,31,.94);border:1px solid rgba(255,255,255,.14);border-radius:999px;box-shadow:0 14px 34px rgba(22,10,17,.22)}
.brand{display:flex;align-items:center;gap:10px;color:#fffaf3;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-size:14px}
.nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-links a,.nav-action{color:#eaded7;padding:9px 15px;border-radius:999px;font-size:14px;transition:.25s ease;border:1px solid transparent}
.nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--coral);color:var(--plum);outline:none}
.nav-action{border-color:rgba(255,255,255,.22);display:inline-flex;align-items:center;gap:7px}
.nav-action:hover,.nav-action:focus{border-color:var(--orange);color:#fff;background:rgba(242,120,87,.12);outline:none}
.menu-toggle{display:none;background:transparent;border:0;color:#fff;padding:8px;font-size:22px}
.hero{position:relative;overflow:hidden;padding:164px 0 82px;background:var(--plum);color:#fffaf3}
.hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(242,120,87,.22);border-radius:50%}
.hero:before{width:520px;height:520px;right:-160px;top:70px}.hero:after{width:260px;height:260px;right:40px;top:190px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5.5vw,68px);line-height:1.15;letter-spacing:-.06em;margin:18px 0}
.hero-copy{font-size:17px;color:#dbcac5;max-width:660px;line-height:1.9}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:999px;font-weight:700;border:1px solid transparent;transition:.25s ease}
.btn-primary{background:var(--coral);color:var(--plum)}.btn-primary:hover{background:var(--orange);transform:translateY(-2px);box-shadow:0 10px 22px #f2785740}
.btn-secondary{color:#fffaf3;border-color:#ffffff47}.btn-secondary:hover{background:#fffaf3;color:var(--plum);transform:translateY(-2px)}
.btn:focus,input:focus,select:focus,summary:focus{outline:3px solid #ff9a628c;outline-offset:3px}
.hero-note{margin-top:20px;color:#bdaaa8;font-size:13px}
.index-panel{background:rgba(81,38,56,.9);border:1px solid #ffffff1c;border-radius:28px;padding:28px;box-shadow:var(--shadow)}
.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.panel-top strong{font-size:18px}.status{color:#b9d8c8;font-size:13px}
.progress{height:9px;border-radius:20px;background:#24131f;margin:12px 0 22px;overflow:hidden}.progress i{display:block;width:72%;height:100%;background:var(--coral);border-radius:inherit}
.panel-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.panel-cell{padding:18px;border-radius:17px;background:#24131f}.panel-cell b{display:block;font-size:25px;color:var(--orange);line-height:1.2}.panel-cell span{font-size:13px;color:#d9c4c6}
.section{padding:88px 0}.section.alt{background:var(--paper)}.section.dark{background:var(--plum);color:#fff8ee}
.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
.section-heading h2{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.05em;margin:12px 0 0}
.section-heading p{max-width:500px;color:var(--muted);margin:0}.dark .section-heading p{color:#cbb6b4}
.filterbar{display:flex;flex-wrap:wrap;gap:10px;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fffaf4;margin-bottom:26px}
.filterbar select,.filterbar input{border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:10px 14px;color:var(--ink);min-width:150px}
.tag{display:inline-flex;border-radius:999px;padding:5px 10px;background:#f2e5da;color:var(--plum);font-size:12px;font-weight:700}
.tag.active{background:var(--coral)}
.content-layout{display:grid;grid-template-columns:1.45fr .75fr;gap:24px}
.feature-card,.index-card,.side-card{border:1px solid var(--line);background:#fffaf4;border-radius:var(--radius);overflow:hidden;transition:.25s ease}
.feature-card:hover,.index-card:hover{transform:translateY(-4px);border-color:var(--coral);box-shadow:var(--shadow)}
.feature-card{display:grid;grid-template-columns:.8fr 1.2fr;min-height:300px}
.cover{min-height:100%;background:linear-gradient(140deg,#512638,#f27857 55%,#ffcf9d);position:relative}
.cover:after{content:"18+ 预览";position:absolute;left:18px;bottom:18px;background:#24131fcc;color:#fff;padding:5px 10px;border-radius:999px;font-size:12px}
.card-body{padding:28px}.card-body h3{font-size:25px;line-height:1.35;margin:15px 0 10px}.card-body p,.index-card p,.side-card p{color:var(--muted);font-size:14px}
.card-meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px}
.index-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}
.index-card{padding:22px}.index-card h3{font-size:18px;margin:12px 0 7px}.index-card .arrow{color:var(--coral);font-size:20px}
.side-card{padding:25px;background:var(--plum);color:#fff8ee}.side-card p{color:#d8c4c0}.side-card ul{padding:0;margin:20px 0 0;list-style:none}.side-card li{padding:12px 0;border-bottom:1px solid #ffffff20;font-size:14px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}.compare-box{border-radius:20px;padding:26px;border:1px solid var(--line);background:#fffaf4}.compare-box.good{background:#e3eee8;border-color:#b8d1c5}.compare-box h3{margin-bottom:16px}.compare-box ul{padding-left:20px;margin:0;color:var(--muted);font-size:14px}.compare-box li{margin:8px 0}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}.faq-intro p{color:var(--muted)}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between}summary:after{content:"＋";color:var(--coral)}details[open] summary:after{content:"－"}details p{color:var(--muted);font-size:14px;margin:12px 30px 0 0}
.cta{padding:70px 0;background:var(--coral);color:var(--plum)}.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.cta h2{font-size:clamp(30px,4vw,50px);line-height:1.2;letter-spacing:-.05em}.search-form{background:#fff8ee;border-radius:20px;padding:20px;display:flex;gap:10px}.search-form input{flex:1;border:1px solid var(--line);border-radius:999px;padding:12px 16px;min-width:0}
footer{background:var(--plum);color:#fff8ee;padding:60px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}.footer-brand{font-weight:800;font-size:20px}.footer-grid p{color:#cbb8b5;max-width:390px;font-size:14px}.footer-grid h3{font-size:15px;color:var(--orange)}.footer-grid ul{list-style:none;padding:0;margin:0}.footer-grid li{margin:8px 0;color:#d5c6c1;font-size:14px}.footer-grid a:hover{color:var(--orange)}.age-badge{display:inline-flex;padding:7px 12px;border-radius:999px;background:#512638;color:#ffbd9d;font-size:12px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff1c;margin-top:42px;padding-top:18px;color:#ae9b98;font-size:12px}
@media(max-width:900px){.hero-grid,.content-layout,.faq-wrap,.cta-grid{grid-template-columns:1fr;gap:32px}.stats-grid{grid-template-columns:1fr 1fr}.feature-card{grid-template-columns:1fr}.cover{min-height:170px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.container{width:min(100% - 30px,1180px)}.site-header{top:12px}.nav-shell{border-radius:22px;padding:10px 14px}.brand{font-size:13px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;padding:10px;background:var(--plum);border-radius:18px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{text-align:center}.nav-action{display:none}.hero{padding:135px 0 65px}.hero-copy{font-size:15px}.section{padding:62px 0}.section-heading{display:block}.section-heading p{margin-top:15px}.stats-grid,.index-grid,.compare{grid-template-columns:1fr}.panel-row{gap:8px}.search-form{display:block}.search-form input{width:100%;margin-bottom:10px}.search-form .btn{width:100%}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: category2 */
:root{
 --plum:#24131f;
 --plum-2:#351b2b;
 --plum-3:#512638;
 --coral:#f27857;
 --orange:#ff9a62;
 --cream:#fbf4e9;
 --paper:#fffaf3;
 --sand:#efe2d2;
 --ink:#2a2023;
 --muted:#806f6b;
 --line:#e4d4c7;
 --teal:#789d91;
 --shadow:0 18px 50px rgba(54,29,35,.10);
 --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{position:absolute;z-index:20;top:22px;left:0;right:0}
.nav-shell{display:flex;align-items:center;gap:22px;min-height:66px;padding:10px 14px 10px 22px;background:rgba(36,19,31,.94);border:1px solid rgba(255,255,255,.14);border-radius:999px;box-shadow:0 14px 34px rgba(22,10,17,.22)}
.brand{display:flex;align-items:center;gap:10px;color:#fffaf3;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-size:14px}
.nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-links a,.nav-action{color:#eaded7;padding:9px 15px;border-radius:999px;font-size:14px;transition:.25s ease;border:1px solid transparent}
.nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--coral);color:var(--plum);outline:none}
.nav-action{border-color:rgba(255,255,255,.22);display:inline-flex;align-items:center;gap:7px}
.nav-action:hover,.nav-action:focus{border-color:var(--orange);color:#fff;background:rgba(242,120,87,.12);outline:none}
.menu-toggle{display:none;background:transparent;border:0;color:#fff;padding:8px;font-size:22px}
.hero{position:relative;overflow:hidden;padding:164px 0 88px;background:var(--plum);color:#fffaf3}
.hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(242,120,87,.22);border-radius:50%}
.hero:before{width:520px;height:520px;right:-160px;top:70px}
.hero:after{width:260px;height:260px;right:40px;top:190px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(40px,6vw,72px);line-height:1.12;letter-spacing:-.06em;margin:18px 0 22px;max-width:740px}
.hero-copy{font-size:18px;color:#dbcac5;max-width:670px;line-height:1.9}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:999px;font-weight:700;border:1px solid transparent;transition:.25s ease}
.btn-primary{background:var(--coral);color:var(--plum)}
.btn-primary:hover{background:var(--orange);transform:translateY(-2px);box-shadow:0 10px 22px rgba(242,120,87,.25)}
.btn-secondary{color:#fffaf3;border-color:rgba(255,255,255,.28)}
.btn-secondary:hover{background:#fffaf3;color:var(--plum);transform:translateY(-2px)}
.btn:focus,input:focus,select:focus,summary:focus{outline:3px solid rgba(255,154,98,.55);outline-offset:3px}
.hero-note{margin-top:20px;color:#bdaaa8;font-size:13px}
.hero-panel{background:var(--plum-2);border:1px solid rgba(255,255,255,.12);border-radius:26px;padding:28px;box-shadow:0 24px 60px rgba(10,5,10,.2)}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.13);padding-bottom:18px;margin-bottom:18px}
.panel-top strong{font-size:18px}
.status{display:inline-flex;align-items:center;gap:7px;color:#f5d2bd;font-size:12px}
.status:before{content:"";width:8px;height:8px;border-radius:50%;background:#8bc2a6}
.panel-feature{background:#492538;border-radius:18px;padding:22px;margin-bottom:14px}
.panel-feature strong{display:block;font-size:30px;line-height:1.25}
.panel-feature span{color:#d9c4c6;font-size:13px}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.panel-cell{background:#2b1827;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:17px}
.panel-cell b{font-size:20px;color:var(--orange);display:block}
.panel-cell small{color:#cdb9b6;font-size:12px}
.section{padding:88px 0}
.section.alt{background:var(--paper)}
.section.dark{background:var(--plum);color:#fff8ee}
.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
.section-heading h2{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.05em;margin:12px 0 0}
.section-heading p{max-width:520px;color:var(--muted);margin:0}
.dark .section-heading p{color:#cbb6b4}
.breadcrumb{padding:22px 0 0;color:#cdb9b6;font-size:13px}
.breadcrumb a{color:var(--orange)}
.filter-shell{background:#fffaf4;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.filter-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.filter-label{font-weight:800;margin-right:4px}
.filter-chip{border:1px solid var(--line);background:#fff;color:var(--muted);padding:9px 15px;border-radius:999px;font-size:13px;transition:.2s}
.filter-chip:hover,.filter-chip.active{background:var(--coral);border-color:var(--coral);color:var(--plum)}
.search-box{display:flex;gap:8px;margin-top:18px}
.search-box input,.search-box select{width:100%;border:1px solid var(--line);border-radius:13px;background:#fff;padding:12px 14px;color:var(--ink)}
.search-box input::placeholder{color:#aa9992}
.search-box .btn{border:0;white-space:nowrap}
.index-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;margin-top:28px}
.index-feature{background:var(--plum);color:#fff8ee;border-radius:var(--radius);padding:30px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.index-feature:after{content:"HD";position:absolute;right:25px;top:22px;color:rgba(255,154,98,.18);font-size:80px;font-weight:900}
.index-feature h3{font-size:30px;line-height:1.3;max-width:440px;margin:16px 0 10px}
.index-feature p{color:#d6c1be;max-width:500px}
.tag{display:inline-flex;border-radius:999px;padding:5px 10px;background:#f2e5da;color:var(--plum);font-size:12px;font-weight:700;margin:3px}
.index-feature .tag{background:var(--coral)}
.index-side{display:grid;gap:14px}
.index-card{background:#fffaf4;border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:.25s}
.index-card:hover{transform:translateY(-4px);border-color:var(--coral);box-shadow:var(--shadow)}
.index-card h3{font-size:20px;margin:12px 0 7px}
.index-card p{font-size:14px;color:var(--muted);margin:0}
.status-line{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px}
.status-line b{color:var(--teal)}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-card{border-radius:var(--radius);padding:28px;border:1px solid var(--line);background:#fffaf4}
.compare-card.after{background:#e3eee8;border-color:#b9d2c7}
.compare-card h3{font-size:22px;margin-bottom:18px}
.compare-list{list-style:none;padding:0;margin:0}
.compare-list li{padding:12px 0;border-bottom:1px solid rgba(128,111,107,.2);font-size:14px}
.compare-list li:last-child{border-bottom:0}
.compare-list li:before{content:"•";color:var(--coral);font-weight:900;margin-right:9px}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}
.faq-intro p{color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--coral);font-size:22px;line-height:1}
details[open] summary:after{content:"−"}
.answer{color:var(--muted);font-size:14px;padding:12px 30px 0 0}
.cta{padding:72px 0;background:var(--coral);color:var(--plum)}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.cta h2{font-size:clamp(30px,4vw,50px);line-height:1.2;letter-spacing:-.05em;margin-bottom:15px}
.cta p{max-width:580px}
.feedback-form{background:#fff8ee;border-radius:20px;padding:22px;display:grid;gap:12px}
.feedback-form label{font-size:13px;font-weight:800}
.feedback-form input,.feedback-form select,.feedback-form textarea{width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;padding:11px 13px;color:var(--ink)}
.feedback-form textarea{min-height:86px;resize:vertical}
.feedback-form .btn{background:var(--plum);color:#fff8ee}
.feedback-form .btn:hover{background:var(--plum-2)}
.form-message{font-size:13px;color:#6e4a42;display:none}
footer{background:var(--plum);color:#fff8ee;padding:62px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .9fr;gap:55px;padding-bottom:44px}
.footer-brand{font-weight:900;font-size:20px;letter-spacing:-.04em}
.footer-grid p{color:#cbb6b4;font-size:14px;max-width:400px;margin:15px 0 18px}
.footer-grid h3{font-size:15px;margin:0 0 14px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin:9px 0;color:#cbb6b4;font-size:14px}
.footer-grid a:hover,.footer-grid a:focus{color:var(--orange);outline:none}
.age-badge{display:inline-flex;padding:7px 12px;border:1px solid rgba(255,154,98,.5);border-radius:999px;color:var(--orange);font-size:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#aa9695;font-size:12px}
@media(max-width:1024px){.hero-grid{gap:38px}.stats-grid{grid-template-columns:1fr 1fr}.footer-grid{gap:30px}}
@media(max-width:768px){.container{width:min(100% - 32px,620px)}.site-header{top:12px}.nav-shell{border-radius:20px;padding:10px 15px}.brand{font-size:14px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:10px;right:10px;top:70px;background:var(--plum);border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:10px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{text-align:center}.nav-action{display:none}.hero{padding:130px 0 62px}.hero-grid,.index-grid,.faq-wrap,.cta-grid{grid-template-columns:1fr}.hero-copy{font-size:16px}.section{padding:62px 0}.section-heading{display:block}.section-heading p{margin-top:16px}.split-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}.search-box{display:grid;grid-template-columns:1fr}.search-box .btn{width:100%}}
@media(max-width:520px){h1{font-size:39px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.stats-grid{grid-template-columns:1fr 1fr;gap:10px}.panel-grid{gap:8px}.panel-cell{padding:13px}.filter-shell{padding:16px}.filter-row{gap:7px}.filter-chip{padding:8px 11px}.index-feature{min-height:280px;padding:23px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}