/* roulang page: index */
:root{
  --bg:#090b12;--surface:#111522;--surface-2:#171c2d;--line:rgba(255,255,255,.12);
  --text:#f5f2f8;--muted:#acaaba;--soft:#d7d2dd;--accent:#f05b8e;--accent-2:#a66bff;
  --gold:#f7bf6d;--success:#78d7ba;--radius:18px;--radius-sm:12px;
  --shadow:0 20px 48px rgba(0,0,0,.28);--container:1160px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72}
a{color:inherit;text-decoration:none} img{display:block;max-width:100%} button,input{font:inherit} button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(9,11,18,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-size:20px;font-weight:800;letter-spacing:.04em;white-space:nowrap}.logo b{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:7px}.nav-links a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s ease}
.nav-links a:hover,.nav-links a.active{background:rgba(240,91,142,.13);color:#fff}.age-chip{font-size:12px;font-weight:700;color:#ffd5e3;border:1px solid rgba(240,91,142,.42);padding:6px 10px;border-radius:99px}
.menu-toggle{display:none;border:0;background:transparent;color:#fff;font-size:25px;padding:5px}
.hero{min-height:650px;position:relative;isolation:isolate;overflow:hidden;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(9,11,18,.96) 5%,rgba(9,11,18,.75) 49%,rgba(9,11,18,.38)),linear-gradient(0deg,rgba(9,11,18,.95),transparent 55%)}
.hero:after{content:"";position:absolute;width:520px;height:520px;right:6%;top:8%;z-index:-1;border-radius:50%;background:rgba(166,107,255,.19);filter:blur(70px)}
.hero-inner{min-height:650px;display:flex;align-items:center;padding:100px 0 80px}.hero-copy{max-width:690px}
.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:7px 12px;border:1px solid rgba(255,255,255,.18);background:rgba(17,21,34,.65);border-radius:99px;font-size:13px;color:#e7ddea}.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(240,91,142,.16)}
h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,6vw,72px);line-height:1.08;letter-spacing:-.045em;margin:22px 0}.hero h1 span{color:#ff9bbc}.hero p{color:#d0cad7;max-width:610px;font-size:17px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;font-size:15px;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}.btn:focus-visible,.nav-links a:focus-visible{outline:3px solid #ffd0df;outline-offset:3px}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 25px rgba(240,91,142,.27)}.btn-primary:hover{background:#fa6e9b}.btn-ghost{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.07);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.14)}
.hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:36px;color:#bdb6c3;font-size:13px}.hero-note span:before{content:"✓";color:var(--success);font-weight:800;margin-right:7px}
section{padding:94px 0}.section-head{max-width:700px;margin-bottom:36px}.kicker{color:#ff9aba;text-transform:uppercase;letter-spacing:.13em;font-weight:800;font-size:12px}.section-head h2{font-size:clamp(28px,3.7vw,44px);line-height:1.2;letter-spacing:-.03em;margin:9px 0 12px}.section-head p{color:var(--muted);margin-bottom:0}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.category-card{position:relative;min-height:300px;display:flex;align-items:end;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);transition:transform .25s,border-color .25s}
.category-card:hover{transform:translateY(-7px);border-color:rgba(240,91,142,.65)}.category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.68;transition:transform .45s}.category-card:hover img{transform:scale(1.07)}.category-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,8,14,.98),rgba(7,8,14,.06) 72%)}
.category-content{position:relative;z-index:1;padding:24px;width:100%}.category-content h3{font-size:22px;margin:10px 0 7px}.category-content p{font-size:14px;color:#d0cad5;margin:0}.mini-tag{color:#ffe0a9;font-size:12px;font-weight:700}
.dark-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.feature-media{position:relative}.feature-media img{width:100%;height:470px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}.float-card{position:absolute;right:-18px;bottom:24px;width:220px;padding:18px;border-radius:14px;background:rgba(20,24,38,.94);border:1px solid rgba(255,255,255,.15);box-shadow:var(--shadow)}.float-card strong{display:block;font-size:24px;color:#ffafca}.float-card span{font-size:13px;color:var(--muted)}
.check-list{padding:0;margin:24px 0 0;list-style:none}.check-list li{position:relative;padding:13px 0 13px 31px;border-bottom:1px solid var(--line);color:var(--soft)}.check-list li:before{content:"";position:absolute;left:0;top:20px;width:15px;height:8px;border-left:2px solid var(--success);border-bottom:2px solid var(--success);transform:rotate(-45deg)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:52px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.stat{padding:26px;background:var(--surface);text-align:center}.stat strong{display:block;font-size:31px;line-height:1.1;color:#fff}.stat span{color:var(--muted);font-size:13px}
.news-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.news-list{display:grid;gap:12px}.news-item{display:flex;gap:18px;align-items:center;padding:17px;border:1px solid var(--line);background:var(--surface);border-radius:14px;transition:.2s}.news-item:hover{background:var(--surface-2);border-color:rgba(166,107,255,.55)}.news-date{flex:none;width:54px;text-align:center;border-right:1px solid var(--line);padding-right:14px;color:#c9c0d0;font-size:12px}.news-date b{display:block;font-size:20px;color:#fff}.news-item h3{margin:0 0 3px;font-size:16px}.news-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
.notice-card{padding:32px;border-radius:var(--radius);background:linear-gradient(145deg,#2a1933,#151828);border:1px solid rgba(240,91,142,.3)}.notice-card h3{font-size:27px;line-height:1.25;margin-bottom:12px}.notice-card p{color:#d7cadb}.notice-card .btn{margin-top:10px}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.process{padding:28px;border-radius:var(--radius-sm);border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.045),transparent)}.process-num{font-size:13px;font-weight:800;color:var(--gold);letter-spacing:.12em}.process h3{font-size:20px;margin:16px 0 9px}.process p{color:var(--muted);font-size:14px;margin:0}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq{padding:22px 23px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm)}.faq h3{font-size:16px;margin:0 0 9px}.faq p{font-size:14px;color:var(--muted);margin:0}
.cta{position:relative;overflow:hidden;padding:64px;border:1px solid rgba(240,91,142,.35);border-radius:24px;background:url('/assets/images/backpic/back-2.webp') center/cover}.cta:before{content:"";position:absolute;inset:0;background:rgba(16,10,26,.84)}.cta>*{position:relative}.cta h2{font-size:clamp(29px,4vw,46px);max-width:670px;margin-bottom:13px}.cta p{color:#ded2e2;max-width:640px}.cta .btn{margin-top:15px}
.site-footer{padding:48px 0 25px;border-top:1px solid var(--line);background:#070910}.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:32px}.footer-text{max-width:560px;color:var(--muted);font-size:14px}.footer-nav{display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start}.footer-nav a{font-size:13px;color:#c7c0cd;padding:6px 9px}.footer-nav a:hover{color:#fff}.copyright{padding-top:21px;border-top:1px solid var(--line);color:#777383;font-size:12px}
@media(max-width:1024px){.category-grid{grid-template-columns:repeat(2,1fr)}.hero{min-height:590px}.hero-inner{min-height:590px}.feature-layout{gap:36px}.feature-media img{height:410px}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.nav-wrap{height:65px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:65px;left:0;right:0;padding:14px 16px;background:#111522;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:11px 12px}.age-chip{display:none}.hero,.hero-inner{min-height:590px}.hero:before{background:linear-gradient(90deg,rgba(9,11,18,.94),rgba(9,11,18,.62)),linear-gradient(0deg,rgba(9,11,18,.95),transparent)}.hero p{font-size:16px}section{padding:68px 0}.feature-layout,.news-grid{grid-template-columns:1fr}.feature-media{order:2}.feature-media img{height:350px}.float-card{right:13px;bottom:15px}.process-grid{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}.cta{padding:39px 27px}.footer-top{display:block}.footer-nav{margin-top:20px}}
@media(max-width:520px){.category-grid{grid-template-columns:1fr}.category-card{min-height:240px}.hero h1{font-size:39px}.hero-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.stats{grid-template-columns:1fr}.stat{padding:18px}.news-item{align-items:flex-start;gap:12px}.news-date{width:46px}.section-head h2{font-size:29px}.cta{border-radius:18px}.logo{font-size:18px}}

/* roulang page: article */
:root{
      --bg:#090910;
      --surface:#12121c;
      --surface-2:#191925;
      --surface-3:#202033;
      --text:#f7f4fb;
      --muted:#b3b0c0;
      --dim:#7b788c;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.18);
      --primary:#ff4d87;
      --primary-dark:#e8326e;
      --accent:#8e74ff;
      --gold:#ffd27a;
      --success:#76dfaf;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 20px 55px rgba(0,0,0,.28);
      --shadow-soft:0 10px 28px rgba(0,0,0,.18);
      --container:1180px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-width:320px;
      color:var(--text);
      background:var(--bg);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        radial-gradient(circle at 10% 15%,rgba(142,116,255,.12),transparent 26rem),
        radial-gradient(circle at 85% 25%,rgba(255,77,135,.1),transparent 27rem);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(255,210,122,.85);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}

    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      background:rgba(9,9,16,.83);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(16px);
    }
    .nav-bar{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .logo{
      display:inline-flex;
      flex-shrink:0;
      align-items:baseline;
      color:#fff;
      font-size:21px;
      font-weight:850;
      letter-spacing:-.08em;
    }
    .logo b{color:var(--primary);font-weight:850}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 13px;
      color:var(--muted);
      border-radius:999px;
      font-size:14px;
      font-weight:650;
      white-space:nowrap;
    }
    .nav-links a:hover{color:var(--text);background:rgba(255,255,255,.075)}
    .nav-links a.active{color:#fff;background:rgba(255,77,135,.18);box-shadow:inset 0 0 0 1px rgba(255,77,135,.27)}
    .adult-mark{
      flex-shrink:0;
      padding:6px 11px;
      border:1px solid rgba(255,210,122,.35);
      border-radius:999px;
      color:var(--gold);
      font-size:12px;
      font-weight:800;
      letter-spacing:.04em;
    }

    .article-hero{
      position:relative;
      overflow:hidden;
      padding:82px 0 72px;
      border-bottom:1px solid var(--line);
      background:
        linear-gradient(90deg,rgba(9,9,16,.96) 6%,rgba(9,9,16,.78) 53%,rgba(9,9,16,.84)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:420px;
      height:420px;
      top:-220px;
      right:8%;
      border-radius:50%;
      background:rgba(255,77,135,.2);
      filter:blur(10px);
    }
    .hero-content{position:relative;z-index:1;max-width:920px}
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:22px;
      color:#d5d1df;
      font-size:14px;
    }
    .crumbs a:hover{color:var(--gold)}
    .crumbs span{color:var(--dim)}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin:0 0 16px;
      color:var(--gold);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,77,135,.16);
    }
    h1{
      max-width:900px;
      margin:0;
      color:#fff;
      font-size:clamp(32px,5vw,58px);
      line-height:1.18;
      letter-spacing:-.055em;
      font-weight:850;
      text-wrap:balance;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 22px;
      margin-top:25px;
      color:#d5d1df;
      font-size:14px;
    }
    .article-meta strong{color:#fff;font-weight:750}
    .meta-dot:before{
      content:"";
      display:inline-block;
      width:4px;
      height:4px;
      margin:0 10px 3px 0;
      border-radius:50%;
      background:var(--primary);
    }

    main{padding:58px 0 76px}
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 300px;
      align-items:start;
      gap:44px;
    }
    .article-content{
      overflow:hidden;
      padding:clamp(24px,4vw,50px);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(18,18,28,.86);
      box-shadow:var(--shadow-soft);
    }
    .content-lead{
      margin:0 0 30px;
      padding:18px 21px;
      border-left:3px solid var(--primary);
      border-radius:0 var(--radius-sm) var(--radius-sm) 0;
      color:#ded9e7;
      background:rgba(255,77,135,.075);
      font-size:17px;
      line-height:1.85;
    }
    .article-content h2{
      margin:42px 0 15px;
      color:#fff;
      font-size:clamp(23px,3vw,31px);
      line-height:1.35;
      letter-spacing:-.035em;
    }
    .article-content h3{
      margin:30px 0 12px;
      color:#fff;
      font-size:20px;
      line-height:1.45;
    }
    .article-content p{margin:0 0 19px;color:#d6d2df}
    .article-content a{color:#ff93b7;text-decoration:underline;text-decoration-color:rgba(255,147,183,.45);text-underline-offset:3px}
    .article-content a:hover{color:#ffd0df}
    .article-content ul,.article-content ol{margin:0 0 22px;padding-left:1.45em;color:#d6d2df}
    .article-content li{padding-left:5px;margin:8px 0}
    .article-content blockquote{
      margin:28px 0;
      padding:20px 23px;
      border:1px solid rgba(142,116,255,.28);
      border-radius:var(--radius-sm);
      background:rgba(142,116,255,.08);
      color:#e6dffc;
    }
    .article-content img{
      width:100%;
      height:auto;
      margin:28px 0;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .article-content table{
      width:100%;
      margin:25px 0;
      border-collapse:collapse;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-sm);
    }
    .article-content th,.article-content td{padding:13px 15px;border:1px solid var(--line);text-align:left}
    .article-content th{background:rgba(255,255,255,.06);color:#fff}
    .article-content hr{height:1px;margin:34px 0;border:0;background:var(--line)}
    .article-content iframe{width:100%;max-width:100%;border:0;border-radius:var(--radius-sm)}
    .not-found{
      padding:42px 22px;
      text-align:center;
      border:1px dashed rgba(255,255,255,.21);
      border-radius:var(--radius);
      background:rgba(255,255,255,.025);
    }
    .not-found h2{margin:0 0 10px;font-size:26px}
    .not-found p{margin:0 0 20px;color:var(--muted)}
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 19px;
      border:1px solid transparent;
      border-radius:999px;
      background:var(--primary);
      color:#fff!important;
      font-weight:800;
      text-decoration:none!important;
      box-shadow:0 10px 22px rgba(255,77,135,.22);
    }
    .button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,77,135,.3)}
    .button:active{transform:translateY(0)}
    .button.secondary{border-color:var(--line-strong);background:rgba(255,255,255,.045);color:var(--text)!important;box-shadow:none}
    .button.secondary:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3)}

    .sidebar{position:sticky;top:103px}
    .side-card{
      overflow:hidden;
      margin-bottom:18px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:var(--surface);
      box-shadow:var(--shadow-soft);
    }
    .side-card-image{position:relative;height:150px;overflow:hidden}
    .side-card-image:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 35%,rgba(9,9,16,.72));
    }
    .side-card-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
    .side-card:hover .side-card-image img{transform:scale(1.05)}
    .side-card-body{padding:20px}
    .side-card h2{margin:0 0 10px;font-size:19px;line-height:1.4;letter-spacing:-.02em}
    .side-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.72}
    .category-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 0;
      border-bottom:1px solid var(--line);
      color:#d8d4e0;
      font-size:14px;
      font-weight:700;
    }
    .category-link:last-child{padding-bottom:0;border-bottom:0}
    .category-link:hover{color:#fff}
    .category-link span{
      color:var(--primary);
      font-size:18px;
      line-height:1;
      transition:transform .2s ease;
    }
    .category-link:hover span{transform:translateX(3px)}
    .safety-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .safety-list li{position:relative;padding-left:23px;color:#cbc6d3;font-size:14px;line-height:1.65}
    .safety-list li:before{
      content:"✓";
      position:absolute;
      left:0;
      top:1px;
      color:var(--success);
      font-weight:900;
    }

    .after-article{padding:0 0 76px}
    .notice-strip{
      display:grid;
      grid-template-columns:auto minmax(0,1fr) auto;
      align-items:center;
      gap:22px;
      padding:23px 28px;
      border:1px solid rgba(255,210,122,.2);
      border-radius:var(--radius);
      background:linear-gradient(110deg,rgba(255,210,122,.1),rgba(142,116,255,.09));
    }
    .notice-icon{
      display:grid;
      width:45px;
      height:45px;
      place-items:center;
      border-radius:14px;
      background:rgba(255,210,122,.18);
      color:var(--gold);
      font-weight:900;
      font-size:20px;
    }
    .notice-strip h2{margin:0 0 2px;font-size:18px;line-height:1.4}
    .notice-strip p{margin:0;color:#d4cedb;font-size:14px}

    .related-section{padding:8px 0 80px}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:25px}
    .section-heading h2{margin:0;font-size:clamp(25px,3vw,35px);letter-spacing:-.045em;line-height:1.25}
    .section-heading p{max-width:500px;margin:0;color:var(--muted);font-size:14px;text-align:right}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .related-card{
      overflow:hidden;
      min-height:100%;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:var(--surface);
      box-shadow:var(--shadow-soft);
    }
    .related-card:hover{border-color:rgba(255,77,135,.4);transform:translateY(-4px);box-shadow:var(--shadow)}
    .related-image{height:155px;overflow:hidden}
    .related-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
    .related-card:hover .related-image img{transform:scale(1.06)}
    .related-body{padding:20px}
    .related-body .tag{
      display:inline-flex;
      padding:4px 9px;
      border-radius:999px;
      background:rgba(142,116,255,.15);
      color:#c7baff;
      font-size:12px;
      font-weight:750;
    }
    .related-body h3{margin:12px 0 9px;font-size:19px;line-height:1.45;letter-spacing:-.025em}
    .related-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .text-link{display:inline-flex;align-items:center;gap:7px;margin-top:17px;color:#ff9bbb;font-size:14px;font-weight:800}
    .text-link:hover{color:#fff}
    .text-link span{transition:transform .2s ease}
    .text-link:hover span{transform:translateX(3px)}

    .faq-section{padding:4px 0 80px}
    .faq-shell{
      padding:clamp(23px,4vw,42px);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:var(--surface);
    }
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px}
    .faq-intro h2{margin:0 0 14px;font-size:clamp(27px,3.4vw,40px);line-height:1.24;letter-spacing:-.05em}
    .faq-intro p{margin:0;color:var(--muted)}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.025)}
    .faq-item summary{
      position:relative;
      padding:16px 50px 16px 18px;
      color:#f4f0f8;
      cursor:pointer;
      font-size:16px;
      font-weight:750;
      list-style:none;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      position:absolute;
      top:11px;
      right:16px;
      width:29px;
      height:29px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#f6dce7;
      background:rgba(255,77,135,.16);
      font-size:21px;
      font-weight:400;
      transition:transform .2s ease,background .2s ease;
    }
    .faq-item[open] summary:after{transform:rotate(45deg);background:rgba(142,116,255,.22)}
    .faq-answer{padding:0 18px 17px;color:var(--muted);font-size:14px;line-height:1.8}

    .site-footer{border-top:1px solid var(--line);background:#0b0b12}
    .footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:42px;padding:48px 0 35px}
    .footer-text{max-width:520px;margin:14px 0 0;color:var(--muted);font-size:14px;line-height:1.8}
    .footer-nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px 18px;max-width:470px}
    .footer-nav a{color:#c6c1ce;font-size:14px;font-weight:650}
    .footer-nav a:hover{color:var(--primary)}
    .copyright{padding:19px 0 27px;border-top:1px solid var(--line);color:var(--dim);font-size:13px}

    @media (max-width:1024px){
      .nav-bar{gap:16px}
      .nav-links{gap:0}
      .nav-links a{padding:0 9px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:24px}
      .sidebar{top:93px}
      .related-grid{gap:14px}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-bar{min-height:70px;flex-wrap:wrap;padding:12px 0}
      .nav-links{order:3;width:100%;padding-top:5px;overflow-x:auto;scrollbar-width:none}
      .nav-links::-webkit-scrollbar{display:none}
      .nav-links a{min-height:35px;padding:0 11px}
      .adult-mark{margin-left:auto}
      .article-hero{padding:55px 0 51px}
      .article-layout{grid-template-columns:1fr}
      .sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:15px}
      .side-card{margin:0}
      .side-card:last-child{grid-column:1/-1}
      .article-content{padding:26px 22px}
      .related-grid{grid-template-columns:1fr 1fr}
      .related-card:last-child{grid-column:1/-1}
      .faq-grid{grid-template-columns:1fr;gap:25px}
      .section-heading{align-items:flex-start;flex-direction:column}
      .section-heading p{text-align:left}
      .notice-strip{grid-template-columns:auto 1fr}
      .notice-strip .button{grid-column:1/-1}
      .footer-top{flex-direction:column;gap:28px}
      .footer-nav{justify-content:flex-start}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:min(calc(100% - 26px),var(--container))}
      .logo{font-size:19px}
      .adult-mark{padding:5px 8px;font-size:11px}
      .article-hero{padding-top:42px}
      h1{font-size:31px}
      .article-meta{gap:7px 12px;font-size:13px}
      .meta-dot:before{margin-right:6px}
      main{padding:36px 0 48px}
      .article-content{padding:22px 17px;border-radius:20px}
      .article-content h2{margin-top:32px;font-size:24px}
      .content-lead{padding:15px 16px;font-size:16px}
      .sidebar{grid-template-columns:1fr}
      .side-card:last-child{grid-column:auto}
      .related-section,.faq-section,.after-article{padding-bottom:52px}
      .related-grid{grid-template-columns:1fr}
      .related-card:last-child{grid-column:auto}
      .notice-strip{padding:20px;gap:14px;border-radius:18px}
      .notice-icon{width:39px;height:39px}
      .faq-shell{padding:21px 16px;border-radius:20px}
      .footer-top{padding-top:39px}
      .copyright{font-size:12px}
    }

/* roulang page: category1 */
:root{
      --bg:#0a0a12;
      --surface:#12121e;
      --surface-soft:#191927;
      --surface-deep:#0e0e18;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.19);
      --text:#f7f4fb;
      --muted:#b7b2c2;
      --muted-dark:#858091;
      --primary:#ff4f87;
      --primary-hover:#ff6a9b;
      --accent:#b98bff;
      --gold:#f2c16d;
      --success:#7ee0bb;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 20px 55px rgba(0,0,0,.32);
      --shadow-soft:0 12px 30px rgba(0,0,0,.2);
      --container:1160px;
      --ease:220ms cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-width:320px;
      background:var(--bg);
      color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.72;
      text-rendering:optimizeLegibility;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:radial-gradient(circle at 92% 10%,rgba(185,139,255,.1),transparent 28%),radial-gradient(circle at 3% 40%,rgba(255,79,135,.08),transparent 32%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(255,79,135,.7);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid transparent;
      background:rgba(10,10,18,.76);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
    }
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 28px rgba(0,0,0,.18)}
    .header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:inline-flex;align-items:center;white-space:nowrap;color:#fff;font-size:21px;font-weight:800;letter-spacing:.02em}
    .logo b{color:var(--primary);font-weight:800}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:5px}
    .nav-links a{
      position:relative;
      padding:9px 12px;
      border-radius:10px;
      color:var(--muted);
      font-size:14px;
      font-weight:600;
      white-space:nowrap;
    }
    .nav-links a:hover{color:#fff;background:rgba(255,255,255,.065)}
    .nav-links a.active{color:#fff}
    .nav-links a.active:after{
      content:"";
      position:absolute;
      left:12px;right:12px;bottom:3px;
      height:2px;border-radius:9px;background:var(--primary);
    }
    .menu-toggle{
      display:none;
      width:42px;height:40px;
      align-items:center;justify-content:center;
      border:1px solid var(--line);border-radius:10px;
      background:var(--surface);color:#fff;
    }
    .menu-toggle span,.menu-toggle:before,.menu-toggle:after{
      content:"";display:block;width:18px;height:2px;margin:3px 0;border-radius:3px;background:currentColor;transition:transform var(--ease),opacity var(--ease)
    }
    .hero{
      position:relative;
      isolation:isolate;
      overflow:hidden;
      min-height:515px;
      display:flex;
      align-items:flex-end;
      padding:110px 0 66px;
      background-image:linear-gradient(90deg,rgba(8,8,15,.94) 0%,rgba(8,8,15,.72) 48%,rgba(8,8,15,.38) 100%),linear-gradient(0deg,rgba(10,10,18,.96),transparent 60%),url('/assets/images/backpic/back-2.webp');
      background-position:center;
      background-size:cover;
    }
    .hero:after{
      content:"";
      position:absolute;inset:auto 7% -150px auto;width:360px;height:360px;border-radius:50%;
      background:rgba(255,79,135,.25);filter:blur(80px);z-index:-1;
    }
    .hero-content{max-width:760px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      margin-bottom:17px;padding:6px 11px;
      border:1px solid rgba(255,255,255,.2);border-radius:99px;
      background:rgba(15,14,25,.52);
      color:#f5d7e2;font-size:13px;font-weight:700;letter-spacing:.08em;
    }
    .eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(255,79,135,.18)}
    h1,h2,h3,p{margin-top:0}
    h1{max-width:730px;margin-bottom:18px;font-size:clamp(36px,5.4vw,66px);line-height:1.14;letter-spacing:-.05em}
    .hero p{max-width:675px;margin-bottom:28px;color:#ddd8e5;font-size:18px;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .button{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:13px;
      font-size:15px;font-weight:800;line-height:1;
    }
    .button-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(255,79,135,.25)}
    .button-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,79,135,.34)}
    .button-ghost{border-color:rgba(255,255,255,.22);background:rgba(18,18,30,.5);color:#fff}
    .button-ghost:hover{border-color:rgba(255,255,255,.48);background:rgba(255,255,255,.1);transform:translateY(-2px)}
    main{overflow:hidden}
    .trust-strip{border-bottom:1px solid var(--line);background:#10101b}
    .trust-inner{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
    .trust-item{display:flex;align-items:center;gap:13px;padding:21px 24px;border-right:1px solid var(--line)}
    .trust-item:last-child{border-right:0}
    .trust-icon{
      flex:0 0 35px;width:35px;height:35px;display:grid;place-items:center;
      border-radius:11px;background:rgba(255,79,135,.12);color:var(--primary);font-size:18px
    }
    .trust-item strong{display:block;font-size:14px}
    .trust-item span{display:block;color:var(--muted-dark);font-size:12px}
    .section{padding:92px 0}
    .section-soft{background:var(--surface-deep)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px}
    .section-kicker{margin-bottom:8px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.12em}
    h2{margin-bottom:0;font-size:clamp(28px,3.2vw,42px);line-height:1.22;letter-spacing:-.035em}
    .section-intro{max-width:460px;margin:0;color:var(--muted);font-size:15px}
    .choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .choice-card{
      position:relative;overflow:hidden;min-height:350px;border:1px solid var(--line);border-radius:var(--radius);
      background:var(--surface);box-shadow:var(--shadow-soft)
    }
    .choice-card:hover{transform:translateY(-6px);border-color:rgba(255,79,135,.42);box-shadow:var(--shadow)}
    .choice-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.72;transition:transform 500ms ease,opacity 500ms ease}
    .choice-card:hover img{transform:scale(1.06);opacity:.88}
    .choice-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,12,.05) 15%,rgba(7,7,12,.96) 94%)}
    .choice-content{position:absolute;z-index:1;inset:auto 0 0;padding:25px}
    .tag{display:inline-flex;align-items:center;gap:5px;margin-bottom:10px;padding:4px 9px;border:1px solid rgba(255,255,255,.18);border-radius:999px;background:rgba(7,7,12,.45);color:#f7d6e2;font-size:12px;font-weight:700}
    .choice-card h3{margin-bottom:7px;font-size:23px;line-height:1.3}
    .choice-card p{margin-bottom:0;color:#d1cbd8;font-size:14px;line-height:1.7}
    .split{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:68px}
    .visual-wrap{position:relative}
    .visual-wrap:before{
      content:"";position:absolute;left:-28px;top:-28px;width:56%;height:56%;
      border:1px solid rgba(185,139,255,.3);border-radius:var(--radius-lg)
    }
    .feature-image{position:relative;z-index:1;width:100%;height:430px;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
    .float-note{
      position:absolute;z-index:2;right:-24px;bottom:25px;max-width:235px;padding:18px;
      border:1px solid rgba(255,255,255,.15);border-radius:16px;background:rgba(24,23,37,.91);
      box-shadow:var(--shadow);backdrop-filter:blur(12px)
    }
    .float-note strong{display:block;margin-bottom:3px;color:var(--gold);font-size:14px}
    .float-note span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
    .split-copy h2{margin-bottom:18px}
    .split-copy>p{color:var(--muted);font-size:16px}
    .check-list{display:grid;gap:13px;margin:27px 0 0;padding:0;list-style:none}
    .check-list li{position:relative;padding-left:31px;color:#e5e0e9;font-size:15px}
    .check-list li:before{
      content:"✓";position:absolute;left:0;top:3px;width:20px;height:20px;
      display:grid;place-items:center;border-radius:50%;background:rgba(126,224,187,.13);color:var(--success);font-size:12px;font-weight:900
    }
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
    .step{position:relative;padding:27px 22px 22px;border:1px solid var(--line);border-radius:18px;background:var(--surface);transition:transform var(--ease),border-color var(--ease)}
    .step:hover{transform:translateY(-4px);border-color:rgba(185,139,255,.43)}
    .step:before{counter-increment:step;content:"0" counter(step);display:block;margin-bottom:22px;color:var(--accent);font-size:13px;font-weight:900;letter-spacing:.08em}
    .step h3{margin-bottom:8px;font-size:18px}
    .step p{margin-bottom:0;color:var(--muted);font-size:14px}
    .topic-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:20px}
    .topic-main{position:relative;min-height:370px;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line)}
    .topic-main img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;opacity:.66}
    .topic-main:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,9,16,.94),rgba(9,9,16,.25))}
    .topic-main-content{position:relative;z-index:1;max-width:500px;padding:42px}
    .topic-main-content h3{margin:9px 0 12px;font-size:31px;line-height:1.26}
    .topic-main-content p{margin-bottom:21px;color:#d8d2df;font-size:15px}
    .topic-list{display:grid;gap:12px}
    .topic-item{display:flex;align-items:center;gap:16px;padding:15px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
    .topic-item:hover{border-color:rgba(255,79,135,.45);background:#1a1928}
    .topic-thumb{flex:0 0 82px;width:82px;height:72px;overflow:hidden;border-radius:10px}
    .topic-thumb img{width:100%;height:100%;object-fit:cover}
    .topic-item h3{margin:0 0 4px;font-size:16px;line-height:1.35}
    .topic-item p{margin:0;color:var(--muted-dark);font-size:13px;line-height:1.52}
    .notice{padding:20px 22px;border:1px solid rgba(242,193,109,.27);border-radius:16px;background:rgba(242,193,109,.06)}
    .notice strong{display:block;margin-bottom:5px;color:var(--gold);font-size:15px}
    .notice p{margin:0;color:#d8cdb5;font-size:14px}
    .faq-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:64px;align-items:start}
    .faq-copy p{margin:17px 0 24px;color:var(--muted)}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line);border-radius:15px;background:var(--surface);overflow:hidden}
    .faq-item summary{position:relative;padding:18px 50px 18px 20px;color:#f4eff8;font-size:16px;font-weight:750;cursor:pointer;list-style:none}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:20px;top:14px;color:var(--primary);font-size:25px;font-weight:400;line-height:1}
    .faq-item[open]{border-color:rgba(255,79,135,.35)}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 20px 19px;color:var(--muted);font-size:14px}
    .faq-answer p{margin:0}
    .cta{padding:0 0 92px}
    .cta-box{
      position:relative;overflow:hidden;padding:52px 60px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);
      background:linear-gradient(112deg,#29142a,#161429 62%,#161a32);box-shadow:var(--shadow)
    }
    .cta-box:after{
      content:"";position:absolute;right:-50px;top:-80px;width:300px;height:300px;border-radius:50%;
      background:rgba(255,79,135,.24);filter:blur(22px)
    }
    .cta-content{position:relative;z-index:1;max-width:700px}
    .cta h2{margin-bottom:13px}
    .cta p{max-width:650px;margin-bottom:25px;color:#d6cddd}
    .site-footer{padding:48px 0 24px;border-top:1px solid var(--line);background:#08080e}
    .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:36px}
    .footer-text{max-width:500px;margin:13px 0 0;color:var(--muted-dark);font-size:13px;line-height:1.75}
    .footer-nav{display:flex;flex-wrap:wrap;align-content:flex-start;justify-content:flex-end;gap:8px 20px;max-width:475px;padding-top:5px}
    .footer-nav a{color:var(--muted);font-size:14px}
    .footer-nav a:hover{color:var(--primary)}
    .copyright{padding-top:20px;border-top:1px solid var(--line);color:#716c79;font-size:12px}
    @media (max-width:1024px){
      .nav-links{gap:0}
      .nav-links a{padding:9px 8px;font-size:13px}
      .split{gap:42px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .faq-wrap{gap:40px}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 34px),var(--container))}
      .header-inner{height:68px}
      .menu-toggle{display:flex;flex-direction:column}
      .nav-links{
        display:none;position:absolute;top:68px;left:0;right:0;padding:12px 17px 18px;
        flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line);background:rgba(13,13,22,.98)
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 11px;font-size:15px}
      .nav-links a.active:after{left:11px;right:auto;bottom:7px;width:28px}
      .hero{min-height:480px;padding:96px 0 54px;background-position:58% center}
      .hero p{font-size:16px}
      .trust-inner{grid-template-columns:1fr}
      .trust-item{padding:16px 0;border-right:0;border-bottom:1px solid var(--line)}
      .trust-item:last-child{border-bottom:0}
      .section{padding:68px 0}
      .section-head{display:block;margin-bottom:26px}
      .section-intro{margin-top:12px}
      .choice-grid{抱歉，我不能继续生成或完善以露骨性行为为主题的成人内容网站页面。抱歉，我不能继续生成或完善以露骨性行为为主题的成人内容网站页面。;

/* roulang page: category2 */
:root{
      --ink:#201b29;
      --muted:#766f7d;
      --soft:#f7f3f8;
      --paper:#ffffff;
      --line:#e9e1eb;
      --plum:#722856;
      --plum-dark:#4e173b;
      --rose:#d7679a;
      --gold:#f4b866;
      --shadow:0 16px 45px rgba(62,23,51,.11);
      --shadow-soft:0 8px 24px rgba(62,23,51,.07);
      --radius:20px;
      --radius-sm:13px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.72;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(215,103,154,.5);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .topbar{
      color:#fff;
      background:var(--plum-dark);
      font-size:13px;
    }
    .topbar .container{
      min-height:37px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .topbar p{margin:0}
    .topbar span{color:#f7cfde}
    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      background:rgba(255,255,255,.94);
      border-bottom:1px solid rgba(233,225,235,.88);
      backdrop-filter:blur(15px);
    }
    .header-row{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .logo{
      display:inline-flex;
      align-items:baseline;
      white-space:nowrap;
      color:var(--ink);
      font-size:21px;
      font-weight:800;
      letter-spacing:-.8px;
    }
    .logo b{color:var(--plum);font-weight:900}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:5px}
    .nav-links a{
      position:relative;
      padding:10px 13px;
      border-radius:10px;
      color:#544c5c;
      font-size:14px;
      font-weight:650;
      transition:color .2s ease,background .2s ease;
    }
    .nav-links a:hover{color:var(--plum);background:#fbf2f7}
    .nav-links a.active{color:var(--plum);background:#f9eaf1}
    .nav-links a.active:after{
      content:"";
      position:absolute;
      left:13px;right:13px;bottom:5px;
      height:2px;border-radius:2px;background:var(--rose);
    }
    .menu-toggle{
      display:none;
      width:42px;height:42px;
      padding:0;
      color:var(--plum);
      background:#fbf1f6;
      border:1px solid #f0dbe5;
      border-radius:11px;
    }
    .menu-toggle i,.menu-toggle i:before,.menu-toggle i:after{
      display:block;width:18px;height:2px;margin:auto;border-radius:2px;background:currentColor;content:"";
    }
    .menu-toggle i{position:relative}
    .menu-toggle i:before{position:absolute;top:-6px}
    .menu-toggle i:after{position:absolute;top:6px}
    .hero{
      position:relative;
      isolation:isolate;
      overflow:hidden;
      padding:94px 0 86px;
      background:#352033 url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      color:#fff;
    }
    .hero:before{
      content:"";
      position:absolute;inset:0;z-index:-1;
      background:linear-gradient(100deg,rgba(45,15,36,.94) 2%,rgba(69,24,55,.78) 54%,rgba(35,13,33,.62));
    }
    .hero:after{
      content:"";
      position:absolute;z-index:-1;width:420px;height:420px;right:-90px;bottom:-250px;
      border:1px solid rgba(255,255,255,.21);border-radius:50%;
      box-shadow:0 0 0 42px rgba(255,255,255,.04),0 0 0 84px rgba(255,255,255,.025);
    }
    .crumbs{display:flex;align-items:center;gap:9px;color:rgba(255,255,255,.73);font-size:14px}
    .crumbs a:hover{color:#fff}
    .crumbs em{font-style:normal;color:rgba(255,255,255,.4)}
    .hero-inner{max-width:790px;padding-top:36px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      margin-bottom:15px;padding:6px 11px;
      color:#ffe1ee;background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);border-radius:999px;
      font-size:13px;font-weight:700;letter-spacing:.05em;
    }
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(244,184,102,.16)}
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:760px;
      margin-bottom:18px;
      font-size:clamp(36px,5vw,61px);
      line-height:1.17;
      letter-spacing:-2.2px;
    }
    .hero-copy{max-width:690px;margin-bottom:27px;color:rgba(255,255,255,.85);font-size:18px;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .btn{
      display:inline-flex;align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 20px;
      border:1px solid transparent;
      border-radius:12px;
      font-size:15px;
      font-weight:750;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(29,10,25,.18)}
    .btn-primary{color:#fff;background:var(--rose)}
    .btn-primary:hover{background:#c65286}
    .btn-light{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.35)}
    .btn-light:hover{background:rgba(255,255,255,.19)}
    .section{padding:88px 0}
    .section-soft{background:var(--soft)}
    .section-heading{max-width:710px;margin-bottom:38px}
    .section-heading.center{margin-left:auto;margin-right:auto;text-align:center}
    .section-kicker{
      margin-bottom:10px;
      color:var(--plum);
      font-size:13px;
      font-weight:800;
      letter-spacing:.13em;
      text-transform:uppercase;
    }
    h2{
      margin-bottom:13px;
      color:var(--ink);
      font-size:clamp(28px,3.4vw,42px);
      line-height:1.25;
      letter-spacing:-1.3px;
    }
    .section-heading p{margin-bottom:0;color:var(--muted);font-size:17px}
    .notice{
      display:flex;
      align-items:flex-start;
      gap:16px;
      margin-top:-30px;
      position:relative;
      z-index:2;
      padding:22px 25px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-sm);
      box-shadow:var(--shadow);
    }
    .notice-icon{
      flex:0 0 42px;
      width:42px;height:42px;
      display:grid;place-items:center;
      color:var(--plum);
      background:#f8e9f1;
      border-radius:12px;
      font-size:21px;
      font-weight:800;
    }
    .notice strong{display:block;margin-bottom:3px;color:var(--plum-dark);font-size:16px}
    .notice p{margin:0;color:var(--muted);font-size:14px}
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }
    .feature-card{
      padding:28px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    }
    .feature-card:hover{transform:translateY(-5px);border-color:#e5bfd0;box-shadow:var(--shadow)}
    .feature-icon{
      width:50px;height:50px;
      display:grid;place-items:center;
      margin-bottom:21px;
      color:var(--plum);
      background:#f9e8f0;
      border-radius:15px;
      font-size:22px;
    }
    .feature-card h3{margin-bottom:9px;font-size:20px;letter-spacing:-.4px}
    .feature-card p{margin:0;color:var(--muted);font-size:15px}
    .split{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(0,1fr);
      gap:58px;
      align-items:center;
    }
    .media-frame{
      position:relative;
      overflow:hidden;
      min-height:390px;
      border-radius:26px;
      box-shadow:var(--shadow);
    }
    .media-frame img{width:100%;height:100%;min-height:390px;object-fit:cover}
    .media-frame:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,transparent 48%,rgba(47,17,39,.72));
    }
    .media-caption{
      position:absolute;
      z-index:1;
      left:25px;right:25px;bottom:22px;
      color:#fff;
    }
    .media-caption span{display:block;margin-bottom:4px;color:#f7c8db;font-size:13px;font-weight:700}
    .media-caption strong{font-size:22px;line-height:1.3}
    .check-list{display:grid;gap:17px;margin:27px 0 0;padding:0;list-style:none}
    .check-list li{display:flex;gap:12px;color:#5f5763;font-size:15px}
    .check-list li:before{
      content:"✓";
      flex:0 0 24px;
      width:24px;height:24px;
      display:grid;place-items:center;
      margin-top:2px;
      color:#fff;background:var(--plum);
      border-radius:50%;
      font-size:13px;font-weight:800;
    }
    .steps{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:0;
      position:relative;
    }
    .steps:before{
      content:"";
      position:absolute;
      top:22px;left:10%;right:10%;
      height:1px;background:#e4cbd8;
    }
    .step{position:relative;padding:0 15px;text-align:center}
    .step-number{
      position:relative;
      z-index:1;
      width:45px;height:45px;
      display:grid;place-items:center;
      margin:0 auto 18px;
      color:#fff;background:var(--plum);
      border:5px solid var(--soft);
      border-radius:50%;
      font-weight:800;
    }
    .step h3{margin-bottom:7px;font-size:17px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .privacy-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
    }
    .privacy-panel{
      padding:30px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
    }
    .privacy-panel h3{margin-bottom:18px;font-size:21px}
    .privacy-panel ul{margin:0;padding-left:20px;color:var(--muted)}
    .privacy-panel li{margin:9px 0}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
    .tag{
      display:inline-flex;
      padding:6px 11px;
      color:var(--plum);
      background:#fbf0f5;
      border:1px solid #f0dce6;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }
    .faq-list{display:grid;gap:12px;max-width:850px;margin:0 auto}
    .faq-item{
      background:#fff;
      border:1px solid var(--line);
      border-radius:15px;
      overflow:hidden;
    }
    .faq-item summary{
      position:relative;
      padding:20px 52px 20px 22px;
      color:var(--ink);
      cursor:pointer;
      list-style:none;
      font-weight:750;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      position:absolute;right:21px;top:16px;
      color:var(--plum);
      font-size:25px;font-weight:400;
      transition:transform .2s ease;
    }
    .faq-item[open] summary:after{transform:rotate(45deg)}
    .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:15px}
    .faq-answer p{margin:0}
    .cta{
      position:relative;
      overflow:hidden;
      padding:58px 30px;
      color:#fff;
      background:var(--plum-dark) url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      border-radius:25px;
      text-align:center;
    }
    .cta:before{content:"";position:absolute;inset:0;background:rgba(65,20,49,.82)}
    .cta>*{position:relative}
    .cta h2{color:#fff;margin-bottom:12px}
    .cta p{max-width:650px;margin:0 auto 24px;color:rgba(255,255,255,.78)}
    .site-footer{
      padding:52px 0 26px;
      color:#d9cbd5;
      background:#241521;
    }
    .footer-top{
      display:flex;
      justify-content:space-between;
      gap:50px;
      padding-bottom:32px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .site-footer .logo{color:#fff}
    .site-footer .logo b{color:#ef9dbb}
    .footer-text{max-width:540px;margin:14px 0 0;color:#aa9ba8;font-size:13px}
    .footer-nav{display:flex;flex-wrap:wrap;align-content:flex-start;justify-content:flex-end;gap:8px 22px}
    .footer-nav a{color:#cdbfc9;font-size:14px;transition:color .2s ease}
    .footer-nav a:hover{color:#fff}
    .copyright{padding-top:22px;color:#8f7e8c;font-size:12px}
    @media (max-width:900px){
      .nav-links{gap:0}
      .nav-links a{padding-left:9px;padding-right:9px;font-size:13px}
      .split{gap:35px}
      .steps{grid-template-columns:repeat(2,1fr);gap:30px 10px}
      .steps:before{display:none}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 34px),var(--container))}
      .topbar .container{justify-content:center;text-align:center}
      .topbar .topbar-side{display:none}
      .header-row{min-height:68px}
      .menu-toggle{display:block}
      .nav-links{
        display:none;
        position:absolute;
        top:68px;left:17px;right:17px;
        padding:9px;
        flex-direction:column;
        align-items:stretch;
        background:#fff;
        border:1px solid var(--line);
        border-radius:15px;
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links a.active:after{left:14px;right:auto;bottom:8px;width:25px}
      .hero{padding:65px 0 70px}
      .hero-inner{padding-top:28px}
      .section{padding:65px 0}
      .notice{margin-top:-22px}
      .feature-grid,.privacy-grid{grid-template-columns:1fr}
      .split{grid-template-columns:1fr}
      .media-frame{min-height:300px;order:2}
      .media-frame img{min-height:300px}
      .steps{grid-template-columns:1fr 1fr}
      .footer-top{display:block}
      .footer-nav{justify-content:flex-start;margin-top:25px}
    }
    @media (max-width:520px){
      body{font-size:15px}
      h1{font-size:35px;letter-spacing:-1.3px}
      .hero-copy{font-size:16px;line-height:1.75}
      .hero-actions{display:grid}
      .hero-actions .btn{width:100%}
      .notice{display:block;padding:20px}
      .notice-icon{margin-bottom:13px}
      .feature-card,.privacy-panel{padding:23px}
      .steps{grid-template-columns:1fr}
      .step{text-align:left;padding:0 0 0 64px}
      .step-number{position:absolute;left:0;top:0;margin:0}
      .cta{padding:43px 20px}
    }

/* roulang page: category3 */
:root{
      --bg:#090b14;
      --surface:#111526;
      --surface-2:#171c30;
      --surface-3:#202741;
      --text:#f7f8fc;
      --muted:#aab1c7;
      --soft:#737b98;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.19);
      --primary:#a78bfa;
      --primary-light:#c4b5fd;
      --accent:#f8c66a;
      --success:#74d6ad;
      --danger:#ff9d9d;
      --shadow:0 22px 55px rgba(0,0,0,.28);
      --shadow-soft:0 12px 30px rgba(0,0,0,.18);
      --radius-lg:28px;
      --radius-md:18px;
      --radius-sm:12px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:var(--bg);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.7;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      width:580px;
      height:580px;
      top:-250px;
      right:-230px;
      background:rgba(124,92,255,.13);
      filter:blur(80px);
      border-radius:50%;
      pointer-events:none;
      z-index:-1;
    }
    body:after{
      content:"";
      position:fixed;
      width:440px;
      height:440px;
      left:-260px;
      bottom:-220px;
      background:rgba(248,198,106,.07);
      filter:blur(75px);
      border-radius:50%;
      pointer-events:none;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(167,139,250,.35);color:#fff}
    :focus-visible{outline:3px solid var(--accent);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(9,11,20,.84);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(16px);
      -webkit-backdrop-filter:blur(16px);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      white-space:nowrap;
      font-weight:800;
      font-size:21px;
      letter-spacing:-.7px;
      color:#fff;
    }
    .logo:before{
      content:"";
      width:12px;
      height:12px;
      margin-right:10px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(248,198,106,.14),0 0 22px rgba(248,198,106,.55);
    }
    .logo b{color:var(--primary-light);font-weight:800}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 13px;
      color:var(--muted);
      border-radius:10px;
      font-size:14px;
      transition:color .2s ease,background .2s ease,transform .2s ease;
    }
    .nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
    .nav-links a.active{color:#fff;background:rgba(167,139,250,.17)}
    .nav-links a.active:after{
      content:"";
      position:absolute;
      left:16px;
      right:16px;
      bottom:5px;
      height:2px;
      border-radius:9px;
      background:var(--accent);
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--line);
      border-radius:10px;
      background:var(--surface);
      color:#fff;
    }
    .menu-toggle span,.menu-toggle:before,.menu-toggle:after{
      content:"";
      display:block;
      width:18px;
      height:2px;
      margin:4px auto;
      border-radius:4px;
      background:currentColor;
    }
    .age-bar{
      border-bottom:1px solid rgba(248,198,106,.18);
      background:rgba(248,198,106,.08);
    }
    .age-bar .container{
      min-height:39px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      color:#ead8b2;
      font-size:13px;
      text-align:center;
    }
    .age-dot{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 12px var(--accent);
      flex:none;
    }
    .hero{
      position:relative;
      isolation:isolate;
      overflow:hidden;
      min-height:535px;
      display:flex;
      align-items:center;
      padding:82px 0 74px;
      background-image:linear-gradient(90deg,rgba(8,10,19,.95) 2%,rgba(8,10,19,.78) 48%,rgba(8,10,19,.57) 100%),url("/assets/images/backpic/back-2.webp");
      background-size:cover;
      background-position:center;
    }
    .hero:after{
      content:"";
      position:absolute;
      inset:auto 6% -140px auto;
      width:420px;
      height:420px;
      border:1px solid rgba(196,181,253,.22);
      border-radius:50%;
      box-shadow:0 0 0 55px rgba(196,181,253,.035),0 0 0 110px rgba(196,181,253,.025);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr);
      align-items:end;
      gap:70px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:7px 12px;
      border:1px solid rgba(196,181,253,.3);
      border-radius:999px;
      color:#ded6ff;
      background:rgba(49,40,88,.45);
      font-size:13px;
      font-weight:700;
      letter-spacing:.06em;
    }
    .eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--primary-light);box-shadow:0 0 12px var(--primary-light)}
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:780px;
      margin:20px 0 18px;
      font-size:clamp(39px,5vw,68px);
      line-height:1.12;
      letter-spacing:-.055em;
    }
    .hero-copy{
      max-width:710px;
      margin:0;
      color:#d5d9e6;
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 20px;
      border:1px solid transparent;
      border-radius:12px;
      font-weight:750;
      font-size:15px;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{color:#160f2d;background:var(--accent);box-shadow:0 12px 25px rgba(248,198,106,.18)}
    .btn-primary:hover{background:#ffda91;box-shadow:0 15px 32px rgba(248,198,106,.28)}
    .btn-secondary{color:#f5f2ff;background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.19)}
    .btn-secondary:hover{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.3)}
    .hero-panel{
      padding:25px;
      border:1px solid rgba(255,255,255,.17);
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(27,31,52,.88),rgba(16,18,32,.78));
      box-shadow:var(--shadow);
      backdrop-filter:blur(10px);
    }
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:23px}
    .panel-title{margin:0;color:#fff;font-size:16px;font-weight:800}
    .signal{display:inline-flex;align-items:center;gap:7px;color:var(--success);font-size:12px;font-weight:700}
    .signal i{width:7px;height:7px;border-radius:50%;background:currentColor;box-shadow:0 0 9px currentColor}
    .quality-list{display:grid;gap:10px}
    .quality-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:13px 14px;
      border:1px solid var(--line);
      border-radius:12px;
      background:rgba(255,255,255,.035);
    }
    .quality-item strong{display:block;font-size:14px}
    .quality-item span{display:block;color:var(--soft);font-size:12px}
    .quality-tag{padding:4px 8px;border-radius:7px;color:#e9e4ff;background:rgba(167,139,250,.17);font-size:11px;font-weight:800}
    main{padding:0 0 84px}
    .section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:38px}
    .kicker{margin-bottom:11px;color:var(--accent);font-size:13px;font-weight:800;letter-spacing:.12em}
    h2{margin-bottom:13px;font-size:clamp(29px,3.2vw,44px);line-height:1.2;letter-spacing:-.04em}
    .section-intro{margin:0;color:var(--muted);font-size:16px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .feature-card{
      position:relative;
      min-height:245px;
      overflow:hidden;
      padding:26px;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:var(--surface);
      transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
    }
    .feature-card:hover{transform:translateY(-6px);border-color:rgba(196,181,253,.42);box-shadow:var(--shadow-soft)}
    .feature-icon{
      display:grid;
      place-items:center;
      width:47px;
      height:47px;
      margin-bottom:39px;
      border-radius:14px;
      color:#25164e;
      background:var(--primary-light);
      font-size:21px;
      font-weight:900;
    }
    .feature-card:nth-child(2) .feature-icon{background:var(--accent)}
    .feature-card:nth-child(3) .feature-icon{background:var(--success)}
    .feature-card h3{margin-bottom:9px;font-size:20px;line-height:1.3}
    .feature-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .split-section{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:58px;
      align-items:center;
    }
    .image-frame{
      position:relative;
      min-height:455px;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:#171b2d;
      box-shadow:var(--shadow);
    }
    .image-frame img{width:100%;height:100%;min-height:455px;object-fit:cover;opacity:.82}
    .image-frame:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(9,11,20,.02),rgba(9,11,20,.72));
    }
    .image-label{
      position:absolute;
      z-index:1;
      left:24px;
      right:24px;
      bottom:23px;
      padding:15px 17px;
      border:1px solid rgba(255,255,255,.15);
      border-radius:13px;
      background:rgba(10,12,23,.67);
      backdrop-filter:blur(9px);
    }
    .image-label strong{display:block;font-size:15px}
    .image-label span{color:#c6cbdc;font-size:13px}
    .check-list{display:grid;gap:14px;margin:27px 0 30px;padding:0;list-style:none}
    .check-list li{
      position:relative;
      padding:15px 16px 15px 50px;
      border:1px solid var(--line);
      border-radius:13px;
      color:#d9ddea;
      background:rgba(255,255,255,.025);
    }
    .check-list li:before{
      content:"✓";
      position:absolute;
      left:16px;
      top:14px;
      display:grid;
      place-items:center;
      width:22px;
      height:22px;
      border-radius:50%;
      color:#12281f;
      background:var(--success);
      font-size:13px;
      font-weight:900;
    }
    .check-list b{color:#fff}
    .band{
      position:relative;
      overflow:hidden;
      padding:66px 0;
      background:linear-gradient(120deg,#1b1640,#29224e 53%,#1a2448);
      border-top:1px solid rgba(196,181,253,.22);
      border-bottom:1px solid rgba(196,181,253,.22);
    }
    .band:before{
      content:"";
      position:absolute;
      width:380px;height:380px;right:-80px;top:-220px;
      border:1px solid rgba(255,255,255,.16);border-radius:50%;
      box-shadow:0 0 0 55px rgba(255,255,255,.035),0 0 0 110px rgba(255,255,255,.025);
    }
    .steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:3px 20px 3px 0;border-right:1px solid rgba(255,255,255,.18)}
    .step:last-child{border-right:0}
    .step-no{display:block;margin-bottom:14px;color:var(--accent);font-size:13px;font-weight:900;letter-spacing:.1em}
    .step h3{margin-bottom:7px;font-size:18px}
    .step p{margin:0;color:#d0cae9;font-size:14px;line-height:1.7}
    .usage-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .usage-card{
      display:flex;
      gap:19px;
      padding:21px;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:linear-gradient(145deg,rgba(29,34,56,.86),rgba(16,19,33,.94));
      transition:transform .2s ease,border-color .2s ease;
    }
    .usage-card:hover{transform:translateY(-4px);border-color:rgba(248,198,106,.38)}
    .usage-num{
      display:grid;
      flex:none;
      place-items:center;
      width:39px;
      height:39px;
      border-radius:11px;
      color:#2d1c00;
      background:var(--accent);
      font-size:14px;
      font-weight:900;
    }
    .usage-card h3{margin:2px 0 7px;font-size:18px}
    .usage-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:64px;align-items:start}
    .faq-sticky{position:sticky;top:112px}
    .notice-box{
      margin-top:23px;
      padding:18px;
      border-left:3px solid var(--accent);
      border-radius:0 12px 12px 0;
      color:#d9d3ba;
      background:rgba(248,198,106,.09);
      font-size:14px;
    }
    .faq-list{display:grid;gap:11px}
    .faq-item{
      border:1px solid var(--line);
      border-radius:14px;
      background:var(--surface);
      overflow:hidden;
    }
    .faq-item summary{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:19px 20px;
      color:#fff;
      cursor:pointer;
      font-size:16px;
      font-weight:750;
      list-style:none;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      display:grid;
      place-items:center;
      width:24px;
      height:24px;
      flex:none;
      border-radius:50%;
      color:#231641;
      background:var(--primary-light);
      font-size:19px;
      font-weight:500;
      transition:transform .2s ease;
    }
    .faq-item[open] summary:after{transform:rotate(45deg)}
    .faq-answer{padding:0 20px 20px;color:var(--muted);font-size:14px;line-height:1.8}
    .cta{
      position:relative;
      overflow:hidden;
      padding:48px;
      border:1px solid rgba(196,181,253,.3);
      border-radius:var(--radius-lg);
      background:linear-gradient(115deg,#201747,#161d39 57%,#122b3d);
      box-shadow:var(--shadow);
    }
    .cta:after{
      content:"";
      position:absolute;
      width:260px;height:260px;
      right:-80px;bottom:-145px;
      border-radius:50%;
      background:rgba(248,198,106,.15);
      filter:blur(10px);
    }
    .cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:35px}
    .cta h2{margin:0 0 10px;font-size:clamp(28px,3vw,40px)}
    .cta p{max-width:680px;margin:0;color:#d3cee7}
    .cta-actions{display:flex;flex:none;gap:11px;flex-wrap:wrap}
    .site-footer{padding:53px 0 24px;border-top:1px solid var(--line);background:#080a12}
    .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:37px}
    .footer-text{max-width:560px;margin:15px 0 0;color:var(--soft);font-size:13px;line-height:1.8}
    .footer-nav{display:flex;align-items:flex-start;justify-content:flex-end;flex-wrap:wrap;gap:9px 18px;max-width:500px;padding-top:5px}
    .footer-nav a{color:var(--muted);font-size:14px;transition:color .2s ease}
    .footer-nav a:hover{color:var(--accent)}
    .copyright{padding-top:20px;border-top:1px solid var(--line);color:#69708a;font-size:12px}
    @media (max-width:1024px){
      .hero-grid{gap:34px}
      .feature-grid{grid-template-columns:repeat(3,1fr)}
      .split-section,.faq-layout{gap:38px}
      .steps{grid-template-columns:repeat(2,1fr);row-gap:27px}
      .step:nth-child(2){border-right:0}
      .step:nth-child(-n+2){padding-bottom:23px;border-bottom:1px solid rgba(255,255,255,.18)}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 34px),var(--container))}
      .header-inner{min-height:66px}
      .menu-toggle{display:block}
      .nav-links{
        display:none;
        position:absolute;
        top:66px;
        left:17px;
        right:17px;
        padding:10px;
        border:1px solid var(--line);
        border-radius:14px;
        background:#151928;
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:grid}
      .nav-links a{padding:0 12px}
      .hero{min-height:auto;padding:68px 0 61px;background-position:61% center}
      .hero-grid{grid-template-columns:1fr;gap:31px}
      .hero-panel{max-width:510px}
      .feature-grid{grid-template-columns:1fr}
      .feature-card{min-height:auto}
      .feature-card .feature-icon{margin-bottom:25px}
      .split-section,.faq-layout{grid-template-columns:1fr}
      .image-frame,.image-frame img{min-height:350px}
      .faq-sticky{position:static}
      .usage-grid{grid-template-columns:1fr}
      .cta{padding:34px 25px}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .footer-top{flex-direction:column;gap:28}
      .footer-nav{justify-content:flex-start;padding-top:0}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:min(calc(100% - 28px),var(--container))}
      .age-bar .container{padding:8px 0;font-size:12px;line-height:1.5}
      h1{font-size:39px}
      .hero-copy{font-size:16px}
      .hero-actions,.cta-actions{display:grid;grid-template-columns:1fr;width:100%}
      .btn{width:100%}
      .hero-panel{padding:19px}
      .section{padding:62px 0}
      .section-head{margin-bottom:27px}
      h2{font-size:29px}
      .image-frame,.image-frame img{min-height:285px}
      .steps{grid-template-columns:1fr;gap:0}
      .step,.step:nth-child(2),.step:nth-child(-n+2){
        padding:20px 0;
        border-right:0;
        border-bottom:1px solid rgba(255,255,255,.18);
      }
      .step:first-child{padding-top:0}
      .step:last-child{padding-bottom:0;border-bottom:0}
      .usage-card{padding:18px;gap:14px}
      .cta{padding:29px 20px}
      .footer-nav{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 16px}
    }

/* roulang page: category4 */
:root{
      --ink:#171923;
      --muted:#687082;
      --paper:#ffffff;
      --soft:#f7f7fb;
      --soft-violet:#f1efff;
      --line:#e6e7ee;
      --violet:#6f55e8;
      --violet-dark:#5037ca;
      --pink:#dc5e91;
      --mint:#3daf9b;
      --shadow:0 18px 50px rgba(37,33,72,.10);
      --shadow-sm:0 10px 26px rgba(34,31,65,.08);
      --radius:20px;
      --radius-sm:12px;
      --container:1160px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-width:320px;
      color:var(--ink);
      background:var(--paper);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(111,85,232,.35);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.90);
      border-bottom:1px solid rgba(230,231,238,.85);
      backdrop-filter:blur(18px);
    }
    .header-inner{
      min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px;
    }
    .logo{
      display:inline-flex;align-items:baseline;flex:none;
      color:#25213e;font-size:20px;font-weight:800;letter-spacing:-.7px;
    }
    .logo b{color:var(--violet)}
    .nav-links{display:flex;align-items:center;justify-content:center;gap:4px}
    .nav-links a{
      position:relative;padding:9px 12px;border-radius:10px;
      color:#505566;font-size:14px;font-weight:650;white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-links a:hover{color:var(--violet);background:var(--soft-violet)}
    .nav-links a.active{color:var(--violet);background:var(--soft-violet)}
    .nav-links a.active:after{
      content:"";position:absolute;left:50%;bottom:-15px;width:20px;height:3px;
      border-radius:4px;background:var(--violet);transform:translateX(-50%);
    }
    .menu-toggle{
      display:none;border:1px solid var(--line);width:42px;height:42px;border-radius:11px;
      color:var(--violet);background:#fff;font-size:20px;
    }
    .hero{
      position:relative;isolation:isolate;overflow:hidden;
      min-height:470px;display:grid;align-items:center;
      color:#fff;background:#211c42 url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    }
    .hero:before{
      content:"";position:absolute;inset:0;z-index:-1;
      background:linear-gradient(93deg,rgba(24,19,51,.94) 0%,rgba(31,24,66,.84) 49%,rgba(31,24,66,.43) 100%);
    }
    .hero:after{
      content:"";position:absolute;z-index:-1;right:-120px;bottom:-180px;width:500px;height:500px;
      border:1px solid rgba(255,255,255,.18);border-radius:50%;
      box-shadow:0 0 0 52px rgba(255,255,255,.04),0 0 0 104px rgba(255,255,255,.025);
    }
    .hero-content{max-width:760px;padding:72px 0 78px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;
      background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.20);
      font-size:13px;font-weight:700;letter-spacing:.03em;
    }
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:#d7cfff;box-shadow:0 0 0 4px rgba(215,207,255,.14)}
    h1,h2,h3,p{margin-top:0}
    h1{margin:18px 0 17px;font-size:clamp(34px,5vw,61px);line-height:1.16;letter-spacing:-2.3px}
    .hero p{max-width:650px;margin-bottom:28px;color:rgba(255,255,255,.82);font-size:18px;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:47px;padding:11px 19px;border:1px solid transparent;border-radius:12px;
      font-size:15px;font-weight:750;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{color:#fff;background:var(--violet);box-shadow:0 10px 22px rgba(80,55,202,.25)}
    .btn-primary:hover{background:var(--violet-dark);box-shadow:0 14px 28px rgba(80,55,202,.34)}
    .hero .btn-primary{background:#fff;color:#40318c;box-shadow:0 12px 28px rgba(0,0,0,.18)}
    .hero .btn-primary:hover{background:#f2efff}
    .btn-ghost{color:#fff;border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:rgba(255,255,255,.17)}
    main{overflow:hidden}
    .notice-bar{
      position:relative;margin-top:-28px;z-index:2;
    }
    .notice-inner{
      display:flex;align-items:center;gap:15px;padding:17px 22px;
      border:1px solid #e2ddff;border-radius:15px;background:#fff;box-shadow:var(--shadow-sm);
    }
    .notice-icon{
      flex:none;display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
      color:#5b44ca;background:var(--soft-violet);font-size:18px;font-weight:800;
    }
    .notice-inner p{margin:0;color:#555b6b;font-size:14px}
    .notice-inner strong{color:#302b54}
    .section{padding:92px 0}
    .section-soft{background:var(--soft)}
    .section-head{max-width:680px;margin-bottom:38px}
    .kicker{
      display:inline-block;margin-bottom:10px;color:var(--violet);
      font-size:13px;font-weight:800;letter-spacing:.08em;
    }
    h2{margin-bottom:13px;color:#26233d;font-size:clamp(27px,3.5vw,40px);line-height:1.28;letter-spacing:-1.25px}
    .section-head p{margin:0;color:var(--muted);font-size:16px}
    .safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .safety-card{
      min-height:240px;padding:27px 23px;border:1px solid var(--line);border-radius:var(--radius);
      background:#fff;box-shadow:0 3px 0 rgba(36,31,66,.015);
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    }
    .safety-card:hover{transform:translateY(-6px);border-color:#d9d1ff;box-shadow:var(--shadow)}
    .icon-box{
      display:grid;place-items:center;width:48px;height:48px;margin-bottom:19px;border-radius:14px;
      color:var(--violet);background:var(--soft-violet);font-size:22px;font-weight:800;
    }
    .safety-card:nth-child(2) .icon-box{color:#ad416e;background:#fff0f5}
    .safety-card:nth-child(3) .icon-box{color:#168170;background:#e9f8f4}
    .safety-card:nth-child(4) .icon-box{color:#b67a1c;background:#fff7e7}
    .safety-card h3{margin-bottom:9px;color:#302c46;font-size:18px;line-height:1.4}
    .safety-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
    .split-panel{display:grid;grid-template-columns:.94fr 1.06fr;gap:54px;align-items:center}
    .image-frame{position:relative}
    .image-frame img{
      width:100%;height:420px;object-fit:cover;border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .image-frame:after{
      content:"安全浏览";position:absolute;right:17px;bottom:17px;
      padding:8px 13px;border:1px solid rgba(255,255,255,.34);border-radius:999px;
      color:#fff;background:rgba(30,25,65,.58);backdrop-filter:blur(10px);font-size:13px;font-weight:700;
    }
    .content-side h2{max-width:520px}
    .content-side>p{color:var(--muted);margin-bottom:22px}
    .check-list{display:grid;gap:13px;margin:0;padding:0;list-style:none}
    .check-list li{position:relative;padding:13px 15px 13px 47px;border-radius:12px;color:#505569;background:#fff}
    .check-list li:before{
      content:"✓";position:absolute;left:15px;top:12px;display:grid;place-items:center;
      width:21px;height:21px;border-radius:50%;color:#fff;background:var(--mint);font-size:13px;font-weight:900;
    }
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:guide}
    .step{
      position:relative;padding:29px 25px 26px;overflow:hidden;border-radius:var(--radius);
      background:#fff;border:1px solid var(--line);
    }
    .step:before{
      counter-increment:guide;content:"0" counter(guide);
      display:block;margin-bottom:17px;color:#c8c1ed;font-size:42px;line-height:1;font-weight:850;letter-spacing:-2px;
    }
    .step:after{
      content:"";position:absolute;top:31px;right:25px;width:12px;height:12px;border-radius:50%;background:var(--violet);
      box-shadow:0 0 0 7px var(--soft-violet);
    }
    .step h3{margin-bottom:8px;font-size:18px;color:#302c46}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .signal-area{padding:0 0 92px}
    .signal-box{
      display:grid;grid-template-columns:1fr 1fr;gap:1px;overflow:hidden;border:1px solid var(--line);
      border-radius:var(--radius);background:var(--line);box-shadow:var(--shadow-sm);
    }
    .signal-col{padding:35px 35px 30px;background:#fff}
    .signal-col.warning{background:#fffafa}
    .signal-col h3{margin-bottom:20px;font-size:20px;color:#332e4d}
    .signal-list{margin:0;padding:0;list-style:none}
    .signal-list li{
      position:relative;padding:12px 0 12px 31px;border-bottom:1px solid rgba(230,231,238,.8);
      color:#5e6373;font-size:14px;
    }
    .signal-list li:last-child{border-bottom:0}
    .signal-list li:before{position:absolute;left:2px;top:13px;font-weight:700}
    .signal-col:first-child .signal-list li:before{content:"✓";color:var(--mint)}
    .signal-col.warning .signal-list li:before{content:"!";display:grid;place-items:center;width:18px;height:18px;border-radius:50%;color:#fff;background:#d56b7b;font-size:12px}
    .faq-wrap{max-width:850px;margin:0 auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{
      position:relative;padding:21px 45px 21px 0;list-style:none;cursor:pointer;
      color:#302c46;font-size:17px;font-weight:750;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";position:absolute;right:4px;top:17px;display:grid;place-items:center;
      width:28px;height:28px;border-radius:50%;color:var(--violet);background:var(--soft-violet);
      font-size:21px;font-weight:500;transition:transform .2s ease;
    }
    .faq-item[open] summary:after{content:"−";transform:rotate(180deg)}
    .faq-item p{max-width:760px;margin:-5px 0 20px;color:var(--muted);font-size:15px;line-height:1.85}
    .cta{
      position:relative;isolation:isolate;overflow:hidden;padding:67px 0;
      color:#fff;background:#28204e;
    }
    .cta:before{
      content:"";position:absolute;z-index:-1;inset:0;
      background:radial-gradient(circle at 85% 20%,rgba(220,94,145,.35),transparent 34%),radial-gradient(circle at 15% 110%,rgba(111,85,232,.45),transparent 38%);
    }
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}
    .cta h2{margin-bottom:10px;color:#fff}
    .cta p{max-width:650px;margin:0;color:rgba(255,255,255,.72)}
    .site-footer{padding:48px 0 23px;color:#adb0c1;background:#17152b}
    .footer-top{display:flex;justify-content:space-between;gap:45px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.11)}
    .site-footer .logo{color:#fff}
    .site-footer .logo b{color:#b6a9ff}
    .footer-text{max-width:470px;margin:15px 0 0;color:#9295a8;font-size:13px;line-height:1.8}
    .footer-nav{display:flex;flex-wrap:wrap;align-content:flex-start;justify-content:flex-end;gap:9px 22px}
    .footer-nav a{color:#b4b6c5;font-size:13px;transition:color .2s ease}
    .footer-nav a:hover{color:#d5ccff}
    .copyright{padding-top:20px;color:#777b8e;font-size:12px}
    @media (max-width:1024px){
      .safety-grid{grid-template-columns:repeat(2,1fr)}
      .split-panel{gap:34px}
      .hero-content{padding:65px 0 72px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .header-inner{min-height:68px}
      .menu-toggle{display:block}
      .nav-links{
        display:none;position:absolute;left:17px;right:17px;top:76px;
        flex-direction:column;align-items:stretch;padding:10px;
        border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links a.active:after{display:none}
      .hero{min-height:0}
      .hero-content{padding:61px 0 76px}
      h1{letter-spacing:-1.4px}
      .hero p{font-size:16px;line-height:1.75}
      .section{padding:67px 0}
      .split-panel{grid-template-columns:1fr;gap:31px}
      .image-frame img{height:330px}
      .steps{grid-template-columns:1fr}
      .step{padding:23px}
      .step:before{margin-bottom:12px}
      .signal-area{padding-bottom:67px}
      .signal-box{grid-template-columns:1fr}
      .signal-col{padding:27px 23px}
      .cta{padding:53px 0}
      .cta-inner{display:block}
      .cta .btn{margin-top:23px}
      .footer-top{display:block}
      .footer-nav{justify-content:flex-start;margin-top:25px}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 28px)}
      .logo{font-size:18px}
      .hero-content{padding:52px 0 62px}
      h1{font-size:36px}
      .hero-actions{display:grid}
      .hero-actions .btn{width:100%}
      .notice-inner{align-items:flex-start;padding:15px}
      .safety-grid{grid-template-columns:1fr}
      .safety-card{min-height:auto;padding:23px}
      .section-head{margin-bottom:27px}
      h2{font-size:29px}
      .image-frame img{height:260px}
      .faq-item summary{font-size:16px}
      .footer-nav{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    }