/* roulang page: index */
:root{
      --bg:#0b1020;
      --bg-soft:#11182c;
      --surface:#ffffff;
      --surface-soft:#f6f7fb;
      --surface-tint:#eef2ff;
      --text:#172033;
      --muted:#667085;
      --light:#f8fafc;
      --white:#ffffff;
      --primary:#7c3aed;
      --primary-dark:#5b21b6;
      --primary-soft:#ede9fe;
      --secondary:#06b6d4;
      --accent:#f59e0b;
      --danger:#ef4444;
      --success:#16a34a;
      --border:#e5e7eb;
      --border-dark:rgba(255,255,255,.14);
      --shadow-sm:0 8px 22px rgba(15,23,42,.08);
      --shadow:0 18px 55px rgba(15,23,42,.14);
      --shadow-lg:0 28px 90px rgba(2,6,23,.24);
      --radius-sm:12px;
      --radius:22px;
      --radius-lg:32px;
      --container:1180px;
      --header-h:78px;
      --ease:all .25s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:linear-gradient(180deg,#fbfcff 0%,#f6f7fb 42%,#fff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(124,58,237,.35);outline-offset:3px}
    ::selection{background:rgba(124,58,237,.18)}

    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:88px 0}
    .section.compact{padding:64px 0}
    .section-head{max-width:780px;margin:0 auto 42px;text-align:center}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      color:var(--primary-dark);background:var(--primary-soft);
      font-size:13px;font-weight:800;letter-spacing:.03em;
      margin-bottom:14px;
    }
    .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--secondary);box-shadow:0 0 0 5px rgba(6,182,212,.13)}
    h1,h2,h3{line-height:1.18;color:#101828;letter-spacing:-.03em}
    h1{font-size:clamp(38px,6vw,72px);font-weight:950}
    h2{font-size:clamp(28px,3.8vw,46px);font-weight:900}
    h3{font-size:22px;font-weight:850}
    p{color:var(--muted)}
    .lead{font-size:18px;color:#d9e2ff;max-width:760px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:0 20px;border-radius:999px;
      font-weight:850;transition:var(--ease);border:1px solid transparent;
      box-shadow:0 10px 24px rgba(124,58,237,.18);
      white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#9f67ff);color:#fff}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(124,58,237,.28)}
    .btn-secondary{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.24);backdrop-filter:blur(12px)}
    .btn-secondary:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--primary-dark);border-color:rgba(124,58,237,.12)}
    .btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .tag{
      display:inline-flex;align-items:center;gap:6px;padding:7px 11px;border-radius:999px;
      background:#fff;color:#344054;border:1px solid var(--border);font-size:13px;font-weight:750;
    }
    .tag strong{color:var(--primary-dark)}

    .site-header{
      position:sticky;top:0;z-index:50;height:var(--header-h);
      background:rgba(255,255,255,.88);backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(229,231,235,.72);
    }
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:radial-gradient(circle at 30% 20%,#fff 0 13%,transparent 14%),
                 linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 34px rgba(124,58,237,.24);
      flex:0 0 auto;
    }
    .brand-name{
      font-size:18px;font-weight:950;letter-spacing:-.03em;color:#101828;
      max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
    }
    .nav-menu{display:flex;align-items:center;gap:6px}
    .nav-menu a{
      padding:10px 14px;border-radius:999px;color:#475467;font-weight:800;font-size:15px;
      transition:var(--ease);
    }
    .nav-menu a:hover{color:var(--primary-dark);background:var(--primary-soft)}
    .nav-menu a.active{color:#fff;background:linear-gradient(135deg,var(--primary),#8b5cf6);box-shadow:0 10px 24px rgba(124,58,237,.2)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .age-pill{
      display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;
      background:#101828;color:#fff;font-size:13px;font-weight:900;
    }
    .age-pill span{width:8px;height:8px;border-radius:50%;background:var(--success)}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;background:var(--surface-soft);
      color:#101828;align-items:center;justify-content:center;
    }
    .menu-toggle i,.menu-toggle i::before,.menu-toggle i::after{
      content:"";display:block;width:20px;height:2px;border-radius:2px;background:#101828;position:relative;transition:var(--ease)
    }
    .menu-toggle i::before{position:absolute;top:-7px}
    .menu-toggle i::after{position:absolute;top:7px}
    .menu-toggle.active i{background:transparent}
    .menu-toggle.active i::before{top:0;transform:rotate(45deg)}
    .menu-toggle.active i::after{top:0;transform:rotate(-45deg)}

    .hero{
      position:relative;min-height:740px;display:flex;align-items:center;isolation:isolate;
      background:
        linear-gradient(115deg,rgba(11,16,32,.94) 0%,rgba(17,24,44,.86) 48%,rgba(91,33,182,.58) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      color:#fff;overflow:hidden;
    }
    .hero::after{
      content:"";position:absolute;inset:auto -16% -32% 40%;
      height:430px;background:radial-gradient(circle,rgba(6,182,212,.35),transparent 62%);
      filter:blur(24px);z-index:-1;
    }
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;padding:82px 0}
    .hero h1{color:#fff;margin:16px 0 22px}
    .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0 24px}
    .hero-note{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .hero-note .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);color:#eef2ff}
    .hero-panel{
      border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.08));
      backdrop-filter:blur(18px);box-shadow:var(--shadow-lg);padding:22px;
    }
    .visual-card{
      overflow:hidden;border-radius:26px;background:#fff;color:var(--text);box-shadow:0 24px 70px rgba(0,0,0,.25)
    }
    .visual-card img{height:260px;width:100%;object-fit:cover}
    .visual-body{padding:24px}
    .notice-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}
    .notice{
      padding:14px;border:1px solid var(--border);border-radius:18px;background:#fafafa;
    }
    .notice b{display:block;color:#101828;margin-bottom:4px}
    .notice span{font-size:13px;color:var(--muted)}
    .age-gate{
      margin-top:18px;padding:16px;border-radius:22px;background:#101828;color:#fff;
      display:flex;align-items:center;justify-content:space-between;gap:14px;
    }
    .age-gate p{color:#d0d5dd;font-size:14px}
    .age-badge{width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,#fff,var(--primary-soft));color:var(--primary-dark);font-weight:950;display:flex;align-items:center;justify-content:center;font-size:20px;flex:0 0 auto}

    .features{background:#fff}
    .feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .feature-card{
      position:relative;overflow:hidden;border:1px solid var(--border);border-radius:var(--radius);
      background:linear-gradient(180deg,#fff,#fbfbff);padding:26px;box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(124,58,237,.28)}
    .icon{
      width:48px;height:48px;border-radius:16px;display:flex;align-items:center;justify-content:center;
      background:var(--primary-soft);color:var(--primary-dark);font-weight:950;margin-bottom:18px;
    }
    .feature-card p{margin-top:10px;font-size:15px}
    .feature-card::after{
      content:"";position:absolute;right:-46px;bottom:-46px;width:120px;height:120px;border-radius:50%;
      background:rgba(124,58,237,.07);
    }

    .split{background:linear-gradient(180deg,#f6f7fb,#fff)}
    .split-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
    .image-stack{position:relative}
    .image-stack .main-img{border-radius:var(--radius-lg);height:520px;width:100%;object-fit:cover;box-shadow:var(--shadow)}
    .floating-card{
      position:absolute;right:-24px;bottom:36px;width:min(330px,82%);
      background:rgba(255,255,255,.92);backdrop-filter:blur(14px);
      border:1px solid rgba(255,255,255,.8);border-radius:24px;padding:20px;box-shadow:var(--shadow);
    }
    .floating-card b{display:block;color:#101828;margin-bottom:8px}
    .check-list{display:grid;gap:14px;margin-top:24px}
    .check-list li{
      list-style:none;display:flex;gap:12px;align-items:flex-start;
      padding:16px;border-radius:18px;background:#fff;border:1px solid var(--border);box-shadow:0 8px 20px rgba(15,23,42,.04)
    }
    .check-list li::before{
      content:"✓";width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
      background:rgba(22,163,74,.12);color:var(--success);font-weight:950;flex:0 0 auto;margin-top:1px
    }

    .category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
    .category-card{
      position:relative;min-height:390px;overflow:hidden;border-radius:var(--radius-lg);
      box-shadow:var(--shadow);isolation:isolate;display:flex;align-items:flex-end;padding:30px;
      transition:var(--ease);
    }
    .category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
    .category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:var(--ease)}
    .category-card:hover img{transform:scale(1.06)}
    .category-card::after{
      content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,16,32,.08),rgba(11,16,32,.88));z-index:-1;
    }
    .category-content h3{color:#fff;font-size:30px;margin:12px 0}
    .category-content p{color:#e2e8f0;margin-bottom:20px}
    .badge{
      display:inline-flex;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.14);
      color:#fff;border:1px solid rgba(255,255,255,.24);font-size:13px;font-weight:850;backdrop-filter:blur(10px)
    }

    .standards{background:#0b1020;color:#fff;position:relative;overflow:hidden}
    .standards::before{content:"";position:absolute;inset:-30% auto auto -10%;width:460px;height:460px;border-radius:50%;background:rgba(124,58,237,.24);filter:blur(40px)}
    .standards .section-head h2,.standards h3{color:#fff}
    .standards .section-head p{color:#cbd5e1}
    .standard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative}
    .standard-card{
      padding:28px;border-radius:var(--radius);background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(14px);transition:var(--ease)
    }
    .standard-card:hover{background:rgba(255,255,255,.12);transform:translateY(-5px)}
    .standard-card p{color:#d0d5dd;margin-top:10px}

    .latest{background:#fff}
    .latest-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .post-card{
      display:flex;gap:16px;padding:18px;border:1px solid var(--border);border-radius:22px;background:#fff;
      box-shadow:0 8px 24px rgba(15,23,42,.05);transition:var(--ease)
    }
    .post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(124,58,237,.22)}
    .post-thumb{
      width:88px;height:88px;border-radius:18px;background:linear-gradient(135deg,var(--primary-soft),#cffafe);
      display:flex;align-items:center;justify-content:center;color:var(--primary-dark);font-weight:950;flex:0 0 auto
    }
    .post-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
    .post-meta span{font-size:12px;padding:4px 8px;border-radius:999px;background:var(--surface-soft);color:#475467;font-weight:750}
    .post-card h3{font-size:18px;margin-bottom:6px}
    .post-card p{font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .empty{
      grid-column:1/-1;padding:34px;border-radius:24px;background:var(--surface-soft);
      border:1px dashed #cbd5e1;text-align:center;color:#667085;font-weight:750;
    }

    .proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .proof-card{
      padding:28px;border:1px solid var(--border);border-radius:var(--radius);
      background:linear-gradient(180deg,#fff,#f8fafc);box-shadow:var(--shadow-sm)
    }
    .proof-num{font-size:36px;font-weight:950;color:var(--primary-dark);line-height:1}
    .proof-card h3{margin:14px 0 8px}

    .faq{background:linear-gradient(180deg,#fff,#f6f7fb)}
    .faq-list{max-width:920px;margin:0 auto;display:grid;gap:14px}
    .faq-item{
      border:1px solid var(--border);border-radius:22px;background:#fff;box-shadow:0 8px 20px rgba(15,23,42,.04);
      overflow:hidden;
    }
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:21px 24px;background:#fff;color:#101828;font-weight:900;text-align:left
    }
    .faq-q::after{content:"+";font-size:24px;color:var(--primary);transition:var(--ease)}
    .faq-item.active .faq-q::after{transform:rotate(45deg)}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
    .faq-a p{padding:0 24px 22px}
    .faq-item.active .faq-a{max-height:180px}

    .cta{
      padding:86px 0;background:
        linear-gradient(135deg,rgba(91,33,182,.94),rgba(6,182,212,.82)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#fff;
    }
    .cta-box{
      display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;
      padding:42px;border-radius:var(--radius-lg);background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(16px)
    }
    .cta h2{color:#fff}
    .cta p{color:#eef2ff;margin-top:12px}
    .cta-actions{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}

    .site-footer{background:#080c18;color:#cbd5e1;padding:54px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:32px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .footer-brand .brand-name{color:#fff}
    .footer-col h3{color:#fff;font-size:16px;margin-bottom:14px}
    .footer-col a{display:block;color:#cbd5e1;margin:9px 0;transition:var(--ease)}
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;font-size:13px;color:#94a3b8}
    .footer-bottom strong{color:#e2e8f0}

    @media (max-width:1024px){
      .hero{min-height:auto}
      .hero-grid,.split-grid,.cta-box{grid-template-columns:1fr;gap:34px}
      .hero-panel{max-width:720px}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .standard-grid,.proof-grid{grid-template-columns:1fr 1fr}
      .latest-grid{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:768px){
      :root{--header-h:70px}
      .container{width:min(100% - 28px,var(--container))}
      .section{padding:66px 0}
      .nav-menu{
        position:fixed;left:14px;right:14px;top:78px;display:none;flex-direction:column;align-items:stretch;
        padding:14px;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow);
      }
      .nav-menu.open{display:flex}
      .nav-menu a{text-align:center;padding:13px}
      .menu-toggle{display:flex}
      .nav-actions .age-pill{display:none}
      .brand-name{max-width:180px}
      .hero-grid{padding:58px 0}
      .notice-row,.category-grid,.standard-grid,.proof-grid,.footer-grid{grid-template-columns:1fr}
      .image-stack .main-img{height:380px}
      .floating-card{position:relative;right:auto;bottom:auto;margin:-46px 16px 0;width:auto}
      .category-card{min-height:320px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      h1{font-size:36px}
      .hero-cta,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .feature-grid{grid-template-columns:1fr}
      .post-card{flex-direction:column}
      .post-thumb{width:100%;height:74px}
      .cta-box{padding:28px}
      .age-gate{align-items:flex-start;flex-direction:column}
      .section-head{text-align:left}
      .eyebrow{margin-left:0}
    }

/* roulang page: article */
:root{
      --bg:#0f1117;
      --bg-soft:#151925;
      --bg-card:#ffffff;
      --bg-muted:#f6f7fb;
      --text:#161a22;
      --text-light:#ffffff;
      --muted:#667085;
      --muted-light:#c7cedd;
      --line:#e7eaf1;
      --line-dark:rgba(255,255,255,.14);
      --primary:#e85d75;
      --primary-dark:#c83f59;
      --primary-soft:#fff0f3;
      --secondary:#7357ff;
      --secondary-soft:#f2efff;
      --accent:#22c7a9;
      --warning:#ffb020;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow-sm:0 10px 24px rgba(21,25,37,.08);
      --shadow:0 20px 50px rgba(21,25,37,.14);
      --shadow-dark:0 24px 60px rgba(0,0,0,.26);
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:var(--font);
      color:var(--text);
      background:linear-gradient(180deg,#fff 0%,#f8f9fd 42%,#fff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none}
    ::selection{background:var(--primary);color:#fff}
    :focus-visible{outline:3px solid rgba(232,93,117,.35);outline-offset:3px;border-radius:10px}

    .container{
      width:min(calc(100% - 40px),var(--container));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(231,234,241,.9);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.02em;
      color:#111827;
    }
    .brand-mark{
      width:40px;
      height:40px;
      flex:0 0 auto;
      border-radius:14px;
      background:
        radial-gradient(circle at 28% 24%,#fff 0 12%,transparent 13%),
        linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 26px rgba(232,93,117,.28);
      position:relative;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      right:8px;
      bottom:8px;
      width:11px;
      height:11px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(34,199,169,.18);
    }
    .brand-name{
      font-size:20px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(246,247,251,.75);
    }
    .nav-menu a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 16px;
      border-radius:999px;
      color:#394150;
      font-weight:700;
      font-size:14px;
      transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease;
    }
    .nav-menu a:hover{
      background:#fff;
      color:var(--primary-dark);
      box-shadow:var(--shadow-sm);
      transform:translateY(-1px);
    }
    .nav-menu a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 24px rgba(115,87,255,.22);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      border:1px solid var(--line);
      background:#fff;
      color:#111827;
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .menu-toggle:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after{
      display:block;
      width:18px;
      height:2px;
      border-radius:999px;
      background:#111827;
      position:relative;
      transition:transform .22s ease,opacity .22s ease;
    }
    .menu-toggle span::before,
    .menu-toggle span::after{content:"";position:absolute;left:0}
    .menu-toggle span::before{top:-6px}
    .menu-toggle span::after{top:6px}
    .menu-toggle.is-open span{background:transparent}
    .menu-toggle.is-open span::before{top:0;transform:rotate(45deg)}
    .menu-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

    .article-hero{
      position:relative;
      overflow:hidden;
      color:#fff;
      background:
        linear-gradient(115deg,rgba(15,17,23,.94),rgba(15,17,23,.78) 46%,rgba(115,87,255,.58)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -36% -10%;
      height:260px;
      background:radial-gradient(circle,rgba(232,93,117,.34),transparent 68%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:1;
      padding:76px 0 64px;
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:46px;
      align-items:end;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:22px;
      color:var(--muted-light);
      font-size:14px;
    }
    .breadcrumb a{
      color:#fff;
      font-weight:800;
      transition:color .2s ease;
    }
    .breadcrumb a:hover{color:#ffd9e0}
    .breadcrumb span{opacity:.82}
    .hero-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      margin-bottom:18px;
      border:1px solid rgba(255,255,255,.22);
      border-radius:999px;
      background:rgba(255,255,255,.1);
      color:#ffe9ed;
      font-weight:800;
      font-size:13px;
    }
    .hero-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(34,199,169,.18);
    }
    h1{
      max-width:850px;
      font-size:clamp(32px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:950;
      margin-bottom:22px;
    }
    .hero-summary{
      max-width:780px;
      color:#e6e9f2;
      font-size:17px;
      line-height:1.9;
    }
    .article-meta-card{
      border:1px solid rgba(255,255,255,.16);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.1);
      backdrop-filter:blur(12px);
      box-shadow:var(--shadow-dark);
      padding:22px;
    }
    .meta-row{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding:13px 0;
      border-bottom:1px solid rgba(255,255,255,.14);
      color:#eff2fb;
      font-size:14px;
    }
    .meta-row:last-child{border-bottom:0}
    .meta-row strong{color:#fff}
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.14);
      color:#fff;
      font-size:12px;
      font-weight:800;
    }

    main{position:relative}
    .content-wrap{
      padding:56px 0 74px;
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:34px;
      align-items:start;
    }
    .article-panel{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .cover-strip{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:0;
      border-bottom:1px solid var(--line);
      background:var(--bg-muted);
    }
    .cover-strip figure{
      min-height:220px;
      overflow:hidden;
      position:relative;
    }
    .cover-strip img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .cover-strip figure:hover img{transform:scale(1.04)}
    .cover-strip figcaption{
      position:absolute;
      left:18px;
      bottom:18px;
      right:18px;
      display:inline-flex;
      width:max-content;
      max-width:calc(100% - 36px);
      padding:8px 12px;
      border-radius:999px;
      background:rgba(15,17,23,.72);
      color:#fff;
      font-size:13px;
      font-weight:800;
      backdrop-filter:blur(8px);
    }
    .article-body{
      padding:38px 42px 44px;
      font-size:17px;
      color:#252b37;
    }
    .article-body h2,
    .article-body h3,
    .article-body h4{
      color:#111827;
      line-height:1.35;
      letter-spacing:-.02em;
      margin:1.8em 0 .75em;
    }
    .article-body h2{
      font-size:28px;
      padding-left:16px;
      border-left:5px solid var(--primary);
    }
    .article-body h3{font-size:23px}
    .article-body h4{font-size:19px}
    .article-body p{margin:1em 0}
    .article-body a{
      color:var(--primary-dark);
      font-weight:800;
      border-bottom:1px solid rgba(232,93,117,.32);
      transition:color .2s ease,border-color .2s ease;
    }
    .article-body a:hover{
      color:var(--secondary);
      border-color:rgba(115,87,255,.38);
    }
    .article-body ul,
    .article-body ol{
      margin:1em 0 1.2em;
      padding-left:1.35em;
    }
    .article-body li{margin:.5em 0}
    .article-body blockquote{
      margin:1.4em 0;
      padding:20px 22px;
      border-left:5px solid var(--secondary);
      border-radius:0 var(--radius) var(--radius) 0;
      background:linear-gradient(135deg,var(--secondary-soft),#fff);
      color:#384052;
      font-weight:700;
    }
    .article-body img{
      border-radius:var(--radius);
      margin:24px auto;
      box-shadow:var(--shadow-sm);
    }
    .article-body table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      margin:24px 0;
      font-size:15px;
    }
    .article-body th,
    .article-body td{
      padding:14px 16px;
      border-bottom:1px solid var(--line);
      text-align:left;
    }
    .article-body th{background:var(--bg-muted);font-weight:900}
    .article-body tr:last-child td{border-bottom:0}
    .not-found{
      padding:56px 42px;
      text-align:center;
      background:linear-gradient(180deg,#fff,var(--primary-soft));
      border-radius:var(--radius-lg);
    }
    .not-found h2{
      font-size:30px;
      margin-bottom:12px;
      color:#111827;
    }
    .not-found p{
      color:var(--muted);
      margin-bottom:24px;
    }

    .sidebar{
      position:sticky;
      top:96px;
      display:grid;
      gap:18px;
    }
    .side-card{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      padding:22px;
      box-shadow:var(--shadow-sm);
    }
    .side-card.dark{
      color:#fff;
      border-color:rgba(255,255,255,.1);
      background:
        linear-gradient(145deg,rgba(15,17,23,.94),rgba(28,33,48,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow-dark);
    }
    .side-card h2,
    .side-card h3{
      font-size:19px;
      line-height:1.35;
      margin-bottom:12px;
      letter-spacing:-.02em;
    }
    .side-card p{
      color:var(--muted);
      font-size:14px;
      margin-bottom:16px;
    }
    .side-card.dark p{color:#dce2ef}
    .check-list{
      display:grid;
      gap:12px;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:10px;
      color:#384052;
      font-size:14px;
    }
    .dark .check-list li{color:#edf1fa}
    .check-list li::before{
      content:"";
      width:18px;
      height:18px;
      flex:0 0 auto;
      margin-top:4px;
      border-radius:50%;
      background:
        linear-gradient(135deg,var(--accent),#7af0dc);
      box-shadow:0 0 0 4px rgba(34,199,169,.12);
    }
    .topic-links{
      display:grid;
      gap:10px;
    }
    .topic-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:13px 14px;
      border:1px solid var(--line);
      border-radius:15px;
      background:var(--bg-muted);
      color:#242b39;
      font-weight:800;
      font-size:14px;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
    }
    .topic-link:hover{
      transform:translateY(-2px);
      background:#fff;
      border-color:rgba(232,93,117,.28);
      box-shadow:var(--shadow-sm);
      color:var(--primary-dark);
    }
    .topic-link::after{
      content:"›";
      font-size:20px;
      color:var(--primary);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      font-weight:900;
      letter-spacing:-.01em;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
      user-select:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      box-shadow:0 14px 28px rgba(232,93,117,.22);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(115,87,255,.28);
    }
    .btn-ghost{
      border:1px solid var(--line);
      background:#fff;
      color:#202636;
    }
    .btn-ghost:hover{
      transform:translateY(-2px);
      border-color:rgba(232,93,117,.32);
      color:var(--primary-dark);
      box-shadow:var(--shadow-sm);
    }
    .btn-light{
      background:#fff;
      color:#111827;
    }
    .btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(0,0,0,.16)}

    .info-section{
      padding:0 0 78px;
    }
    .section-head{
      max-width:760px;
      margin-bottom:28px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:12px;
      color:var(--primary-dark);
      font-weight:950;
      font-size:13px;
      letter-spacing:.08em;
    }
    .eyebrow::before{
      content:"";
      width:24px;
      height:2px;
      border-radius:999px;
      background:var(--primary);
    }
    .section-head h2{
      font-size:clamp(28px,3vw,40px);
      line-height:1.22;
      letter-spacing:-.035em;
      margin-bottom:12px;
      color:#111827;
    }
    .section-head p{
      color:var(--muted);
      font-size:16px;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .feature-card{
      padding:24px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
    }
    .feature-card:hover{
      transform:translateY(-4px);
      border-color:rgba(232,93,117,.28);
      box-shadow:var(--shadow);
    }
    .feature-icon{
      width:48px;
      height:48px;
      border-radius:16px;
      margin-bottom:18px;
      background:linear-gradient(135deg,var(--primary-soft),var(--secondary-soft));
      display:flex;
      align-items:center;
      justify-content:center;
      color:var(--primary-dark);
      font-size:22px;
      font-weight:950;
    }
    .feature-card h3{
      font-size:20px;
      margin-bottom:9px;
      letter-spacing:-.02em;
    }
    .feature-card p{color:var(--muted);font-size:15px}

    .faq-section{
      padding:72px 0;
      background:linear-gradient(180deg,#fff,var(--bg-muted));
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .faq-grid{
      display:grid;
      grid-template-columns:380px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:20px 22px;
      color:#111827;
      font-weight:900;
      text-align:left;
    }
    .faq-question::after{
      content:"+";
      width:28px;
      height:28px;
      flex:0 0 auto;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary-dark);
      display:flex;
      align-items:center;
      justify-content:center;
      transition:transform .2s ease,background .2s ease,color .2s ease;
    }
    .faq-item.is-open .faq-question::after{
      content:"−";
      background:var(--primary);
      color:#fff;
    }
    .faq-answer{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.is-open .faq-answer{display:block}

    .cta-band{
      padding:72px 0;
      background:#fff;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      padding:44px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(232,93,117,.92),rgba(115,87,255,.9)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .cta-card::after{
      content:"";
      position:absolute;
      width:240px;
      height:240px;
      right:-70px;
      top:-80px;
      border-radius:50%;
      background:rgba(255,255,255,.18);
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:24px;
      align-items:center;
    }
    .cta-card h2{
      font-size:clamp(28px,3vw,42px);
      line-height:1.2;
      letter-spacing:-.035em;
      margin-bottom:12px;
    }
    .cta-card p{
      color:#fff0f3;
      max-width:760px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      background:var(--bg);
      color:#fff;
      padding:58px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid var(--line-dark);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
      font-weight:950;
    }
    .footer-col p{
      color:var(--muted-light);
      max-width:520px;
      font-size:14px;
    }
    .footer-col h3{
      font-size:16px;
      margin-bottom:14px;
      color:#fff;
    }
    .footer-col a{
      display:block;
      color:var(--muted-light);
      margin:9px 0;
      font-size:14px;
      transition:color .2s ease,transform .2s ease;
    }
    .footer-col a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      color:#aeb7c8;
      font-size:13px;
    }
    .footer-bottom strong{color:#fff}

    @media (max-width:1024px){
      .hero-inner,
      .content-wrap,
      .faq-grid{
        grid-template-columns:1fr;
      }
      .article-meta-card,
      .sidebar{
        position:static;
      }
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .cta-content{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }

    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .header-inner{min-height:68px}
      .brand-name{font-size:18px;max-width:220px}
      .menu-toggle{display:flex}
      .nav-menu{
        position:absolute;
        left:14px;
        right:14px;
        top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:12px;
        background:#fff;
        box-shadow:var(--shadow);
      }
      .nav-menu.is-open{display:flex}
      .nav-menu a{
        justify-content:flex-start;
        padding:0 14px;
        border-radius:15px;
      }
      .hero-inner{padding:54px 0 46px;gap:28px}
      .article-meta-card{padding:18px}
      .content-wrap{padding:36px 0 56px}
      .cover-strip{grid-template-columns:1fr}
      .cover-strip figure{min-height:190px}
      .article-body{padding:28px 22px 34px;font-size:16px}
      .article-body h2{font-size:24px}
      .feature-grid{grid-template-columns:1fr}
      .faq-section{padding:54px 0}
      .cta-card{padding:32px 24px}
      .footer-grid{grid-template-columns:1fr;gap:24px}
    }

    @media (max-width:520px){
      .brand-mark{width:36px;height:36px;border-radius:12px}
      .brand-name{max-width:180px}
      h1{font-size:31px}
      .hero-summary{font-size:15px}
      .meta-row{display:grid;gap:4px}
      .tag{font-size:11px}
      .article-body table{font-size:14px;display:block;overflow-x:auto}
      .side-card{padding:18px}
      .faq-question{padding:18px}
      .faq-answer{padding:0 18px 18px}
      .cta-actions .btn{width:100%}
      .footer-bottom{display:grid}
    }

/* roulang page: category1 */
:root {
      --color-bg: #f7f3ee;
      --color-surface: #fffaf4;
      --color-surface-strong: #ffffff;
      --color-text: #251b17;
      --color-muted: #74635a;
      --color-soft: #9a8174;
      --color-primary: #9f4f36;
      --color-primary-dark: #74331f;
      --color-primary-light: #ffe0d3;
      --color-secondary: #2f5f5b;
      --color-secondary-light: #dff0ed;
      --color-accent: #d99542;
      --color-border: rgba(82, 52, 39, .14);
      --shadow-sm: 0 10px 28px rgba(65, 37, 25, .08);
      --shadow-md: 0 18px 52px rgba(65, 37, 25, .13);
      --shadow-lg: 0 28px 80px rgba(65, 37, 25, .18);
      --radius-sm: 12px;
      --radius-md: 20px;
      --radius-lg: 30px;
      --radius-xl: 42px;
      --container: 1180px;
      --header-height: 76px;
      --ease: cubic-bezier(.22, .61, .36, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      text-size-adjust: 100%;
    }

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.75;
      color: var(--color-text);
      background:
        radial-gradient(circle at 5% 0%, rgba(217, 149, 66, .16), transparent 30%),
        radial-gradient(circle at 92% 12%, rgba(47, 95, 91, .13), transparent 34%),
        var(--color-bg);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: none;
    }

    :focus-visible {
      outline: 3px solid rgba(159, 79, 54, .36);
      outline-offset: 4px;
      border-radius: 10px;
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid rgba(82, 52, 39, .1);
      background: rgba(255, 250, 244, .86);
      backdrop-filter: blur(18px);
    }

    .nav-shell {
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: inline-block;
      background:
        linear-gradient(135deg, rgba(255,255,255,.75), transparent 45%),
        linear-gradient(135deg, var(--color-primary), var(--color-accent));
      box-shadow: 0 12px 24px rgba(159, 79, 54, .24);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 10px;
      border-radius: 8px;
      border: 2px solid rgba(255, 255, 255, .82);
    }

    .brand-name {
      font-size: 18px;
      color: var(--color-text);
      white-space: nowrap;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 8px;
      border: 1px solid rgba(82, 52, 39, .12);
      border-radius: 999px;
      background: rgba(255, 255, 255, .58);
      box-shadow: var(--shadow-sm);
    }

    .nav-menu a {
      padding: 9px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      color: var(--color-muted);
      transition: color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
      white-space: nowrap;
    }

    .nav-menu a:hover {
      color: var(--color-primary-dark);
      background: rgba(159, 79, 54, .08);
      transform: translateY(-1px);
    }

    .nav-menu a.active {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      box-shadow: 0 12px 24px rgba(159, 79, 54, .25);
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--color-surface-strong);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      align-items: center;
      justify-content: center;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease);
    }

    .nav-toggle:hover {
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
    }

    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
      width: 20px;
      height: 2px;
      border-radius: 10px;
      background: var(--color-text);
      display: block;
      position: relative;
      transition: transform .22s var(--ease), opacity .22s var(--ease);
    }

    .nav-toggle span::before,
    .nav-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

    .nav-toggle span::before {
      top: -7px;
    }

    .nav-toggle span::after {
      top: 7px;
    }

    .nav-toggle.is-open span {
      background: transparent;
    }

    .nav-toggle.is-open span::before {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.is-open span::after {
      transform: translateY(-7px) rotate(-45deg);
    }

    .page-hero {
      position: relative;
      padding: 86px 0 62px;
      overflow: hidden;
      border-bottom: 1px solid rgba(82, 52, 39, .1);
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(37, 27, 23, .82), rgba(37, 27, 23, .54), rgba(37, 27, 23, .2)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      z-index: -2;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: auto -12% -34% auto;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: rgba(217, 149, 66, .28);
      filter: blur(34px);
      z-index: -1;
    }

    .hero-panel {
      max-width: 850px;
      color: #fff;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 13px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, .24);
      background: rgba(255, 255, 255, .12);
      backdrop-filter: blur(10px);
      color: rgba(255, 255, 255, .92);
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 22px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #8df0c7;
      box-shadow: 0 0 0 6px rgba(141, 240, 199, .14);
    }

    h1 {
      max-width: 820px;
      font-size: clamp(34px, 6vw, 66px);
      line-height: 1.08;
      letter-spacing: -.05em;
      margin-bottom: 24px;
      font-weight: 950;
    }

    .hero-lead {
      max-width: 780px;
      color: rgba(255, 255, 255, .86);
      font-size: clamp(16px, 2vw, 20px);
      margin-bottom: 30px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
      margin-bottom: 30px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 900;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      box-shadow: 0 18px 38px rgba(159, 79, 54, .3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 24px 54px rgba(159, 79, 54, .38);
    }

    .btn-light {
      color: #fff;
      border: 1px solid rgba(255, 255, 255, .28);
      background: rgba(255, 255, 255, .12);
      backdrop-filter: blur(10px);
    }

    .btn-light:hover {
      transform: translateY(-2px);
      background: rgba(255, 255, 255, .18);
    }

    .hero-notes {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
    }

    .hero-notes li {
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
      color: rgba(255, 255, 255, .86);
      font-size: 13px;
      font-weight: 800;
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 78px 0;
    }

    .section.compact {
      padding: 58px 0;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-primary);
      font-weight: 950;
      font-size: 13px;
      letter-spacing: .08em;
      margin-bottom: 12px;
    }

    .section-kicker::before {
      content: "";
      width: 24px;
      height: 2px;
      border-radius: 10px;
      background: var(--color-primary);
    }

    h2 {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      letter-spacing: -.04em;
      margin-bottom: 14px;
    }

    .section-desc {
      color: var(--color-muted);
      font-size: 17px;
    }

    .grid {
      display: grid;
      gap: 22px;
    }

    .grid-3 {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid-2 {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .card {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      background: rgba(255, 250, 244, .82);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(159, 79, 54, .24);
    }

    .card-body {
      padding: 26px;
    }

    .icon-badge {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: var(--color-primary-dark);
      background: var(--color-primary-light);
      font-weight: 950;
      font-size: 20px;
    }

    .card h3 {
      font-size: 21px;
      line-height: 1.35;
      margin-bottom: 10px;
      letter-spacing: -.02em;
    }

    .card p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .split {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 36px;
      align-items: center;
    }

    .media-card {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      min-height: 430px;
      box-shadow: var(--shadow-lg);
      background: var(--color-text);
    }

    .media-card img {
      width: 100%;
      height: 100%;
      min-height: 430px;
      object-fit: cover;
      opacity: .82;
      transform: scale(1.02);
    }

    .media-caption {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      padding: 20px;
      border-radius: 24px;
      color: #fff;
      background: rgba(37, 27, 23, .66);
      border: 1px solid rgba(255, 255, 255, .18);
      backdrop-filter: blur(14px);
    }

    .media-caption strong {
      display: block;
      font-size: 19px;
      margin-bottom: 6px;
    }

    .media-caption span {
      color: rgba(255, 255, 255, .78);
      font-size: 14px;
    }

    .check-list {
      display: grid;
      gap: 14px;
      list-style: none;
      margin-top: 22px;
    }

    .check-list li {
      position: relative;
      padding: 16px 18px 16px 48px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .72);
      border: 1px solid var(--color-border);
      color: var(--color-muted);
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 17px;
      top: 16px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--color-secondary);
      color: #fff;
      font-size: 13px;
      font-weight: 950;
    }

    .soft-panel {
      border-radius: var(--radius-xl);
      padding: 34px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.7), rgba(255,250,244,.82)),
        radial-gradient(circle at 100% 0%, rgba(47, 95, 91, .13), transparent 30%);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .steps {
      counter-reset: step;
      display: grid;
      gap: 18px;
    }

    .step {
      counter-increment: step;
      display: grid;
      grid-template-columns: 64px 1fr;
      gap: 18px;
      align-items: start;
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .74);
      border: 1px solid var(--color-border);
      transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
    }

    .step:hover {
      transform: translateX(4px);
      border-color: rgba(47, 95, 91, .24);
      box-shadow: var(--shadow-sm);
    }

    .step::before {
      content: counter(step, decimal-leading-zero);
      width: 58px;
      height: 58px;
      border-radius: 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-secondary), #1f403d);
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .step h3 {
      font-size: 20px;
      margin-bottom: 6px;
    }

    .step p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .scenario {
      background: var(--color-surface-strong);
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      padding: 26px;
      position: relative;
      overflow: hidden;
      min-height: 220px;
      box-shadow: var(--shadow-sm);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease);
    }

    .scenario:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .scenario::after {
      content: "";
      position: absolute;
      width: 120px;
      height: 120px;
      right: -44px;
      bottom: -44px;
      border-radius: 50%;
      background: rgba(217, 149, 66, .14);
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 11px;
      border-radius: 999px;
      background: var(--color-secondary-light);
      color: var(--color-secondary);
      font-size: 12px;
      font-weight: 950;
      margin-bottom: 16px;
    }

    .scenario h3 {
      font-size: 21px;
      margin-bottom: 10px;
      position: relative;
      z-index: 1;
    }

    .scenario p {
      color: var(--color-muted);
      font-size: 15px;
      position: relative;
      z-index: 1;
    }

    .notice-band {
      border-radius: var(--radius-xl);
      padding: 34px;
      background:
        linear-gradient(135deg, rgba(159, 79, 54, .95), rgba(116, 51, 31, .96)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      background-blend-mode: multiply;
      color: #fff;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .notice-band h2 {
      margin-bottom: 8px;
    }

    .notice-band p {
      color: rgba(255, 255, 255, .82);
      max-width: 760px;
    }

    .notice-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .notice-badges span {
      padding: 7px 12px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, .22);
      background: rgba(255, 255, 255, .1);
      font-size: 13px;
      font-weight: 850;
      color: rgba(255, 255, 255, .88);
    }

    .faq {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: 22px;
      background: rgba(255, 250, 244, .86);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      text-align: left;
      color: var(--color-text);
      font-weight: 950;
      font-size: 17px;
    }

    .faq-question::after {
      content: "+";
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--color-primary-light);
      color: var(--color-primary-dark);
      flex: 0 0 auto;
      transition: transform .22s var(--ease), background .22s var(--ease);
    }

    .faq-item.is-open .faq-question::after {
      content: "−";
      background: var(--color-primary);
      color: #fff;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 22px;
      color: var(--color-muted);
      font-size: 15px;
    }

    .faq-item.is-open .faq-answer {
      display: block;
    }

    .cta {
      padding: 76px 0 88px;
    }

    .cta-card {
      border-radius: var(--radius-xl);
      padding: 46px;
      background:
        radial-gradient(circle at 18% 0%, rgba(217, 149, 66, .25), transparent 34%),
        linear-gradient(135deg, #fffaf4, #f1e4d6);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 30px;
      align-items: center;
    }

    .cta-card h2 {
      margin-bottom: 12px;
    }

    .cta-card p {
      color: var(--color-muted);
      max-width: 720px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .btn-outline {
      color: var(--color-primary-dark);
      border: 1px solid rgba(159, 79, 54, .26);
      background: rgba(255, 255, 255, .66);
    }

    .btn-outline:hover {
      transform: translateY(-2px);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .site-footer {
      padding: 56px 0 26px;
      color: rgba(255, 255, 255, .8);
      background: #211713;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 34px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      color: #fff;
      font-weight: 950;
    }

    .footer-col p {
      max-width: 460px;
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
    }

    .footer-col h3 {
      color: #fff;
      margin-bottom: 14px;
      font-size: 16px;
    }

    .footer-col a {
      display: block;
      color: rgba(255, 255, 255, .66);
      font-size: 14px;
      margin: 8px 0;
      transition: color .22s var(--ease), transform .22s var(--ease);
    }

    .footer-col a:hover {
      color: #fff;
      transform: translateX(3px);
    }

    .footer-bottom {
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: rgba(255, 255, 255, .55);
      font-size: 13px;
    }

    .footer-bottom strong {
      color: rgba(255, 255, 255, .78);
    }

    @media (max-width: 1024px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .split,
      .cta-card,
      .notice-band {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-height: 68px;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .nav-menu {
        position: absolute;
        left: 16px;
        right: 16px;
        top: calc(var(--header-height) + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        border-radius: 24px;
        padding: 12px;
        background: rgba(255, 250, 244, .96);
      }

      .nav-menu.is-open {
        display: flex;
      }

      .nav-menu a {
        text-align: center;
        padding: 12px 16px;
      }

      .brand-name {
        font-size: 16px;
        max-width: 58vw;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .page-hero {
        padding: 64px 0 48px;
      }

      .section {
        padding: 58px 0;
      }

      .grid-3,
      .grid-2 {
        grid-template-columns: 1fr;
      }

      .media-card,
      .media-card img {
        min-height: 330px;
      }

      .step {
        grid-template-columns: 1fr;
      }

      .step::before {
        width: 52px;
        height: 52px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero-actions,
      .cta-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .hero-notes {
        flex-direction: column;
      }

      .card-body,
      .soft-panel,
      .notice-band,
      .cta-card {
        padding: 24px;
        border-radius: 26px;
      }

      .faq-question {
        padding: 18px;
        font-size: 16px;
      }

      .faq-answer {
        padding: 0 18px 18px;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#0f1117;
      --bg-soft:#151926;
      --bg-card:#ffffff;
      --surface:#f6f7fb;
      --surface-2:#eef1f7;
      --text:#171b26;
      --muted:#667085;
      --muted-dark:#aeb6c7;
      --white:#ffffff;
      --primary:#7c3aed;
      --primary-dark:#5b21b6;
      --primary-soft:#ede9fe;
      --accent:#f97316;
      --accent-soft:#fff3e8;
      --success:#16a34a;
      --danger:#dc2626;
      --border:#e4e7ef;
      --border-dark:rgba(255,255,255,.14);
      --shadow-sm:0 8px 24px rgba(15,17,23,.08);
      --shadow-md:0 18px 45px rgba(15,17,23,.14);
      --shadow-lg:0 28px 70px rgba(15,17,23,.22);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --container:1180px;
      --transition:all .25s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:linear-gradient(180deg,#ffffff 0%,#f7f8fc 48%,#eef1f7 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;background:none;cursor:pointer}
    :focus-visible{outline:3px solid rgba(124,58,237,.32);outline-offset:3px}

    .container{
      width:min(100% - 40px,var(--container));
      margin-inline:auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      background:rgba(255,255,255,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(228,231,239,.85);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      background:
        radial-gradient(circle at 28% 25%,rgba(255,255,255,.95) 0 13%,transparent 14%),
        linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 26px rgba(124,58,237,.28);
      display:inline-block;
      position:relative;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border:2px solid rgba(255,255,255,.76);
      border-radius:10px;
    }
    .brand-name{
      font-size:18px;
      color:#141827;
      white-space:nowrap;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      background:rgba(246,247,251,.82);
      border:1px solid var(--border);
      border-radius:999px;
    }
    .nav-menu a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 16px;
      border-radius:999px;
      color:#475467;
      font-size:14px;
      font-weight:700;
      transition:var(--transition);
      white-space:nowrap;
    }
    .nav-menu a:hover{
      color:var(--primary-dark);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transform:translateY(-1px);
    }
    .nav-menu a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 12px 28px rgba(124,58,237,.24);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:var(--surface);
      border:1px solid var(--border);
      color:var(--text);
      align-items:center;
      justify-content:center;
      transition:var(--transition);
    }
    .menu-toggle:hover{background:#fff;box-shadow:var(--shadow-sm)}
    .menu-toggle span{
      width:20px;
      height:2px;
      background:currentColor;
      position:relative;
      display:block;
      border-radius:99px;
    }
    .menu-toggle span::before,.menu-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:20px;
      height:2px;
      background:currentColor;
      border-radius:99px;
      transition:var(--transition);
    }
    .menu-toggle span::before{top:-7px}
    .menu-toggle span::after{top:7px}

    .hero{
      position:relative;
      isolation:isolate;
      min-height:560px;
      display:flex;
      align-items:center;
      color:#fff;
      overflow:hidden;
      background:
        linear-gradient(115deg,rgba(15,17,23,.92),rgba(25,20,48,.78) 50%,rgba(124,58,237,.38)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto -12% -42% -12%;
      height:260px;
      background:radial-gradient(circle,rgba(249,115,22,.35),transparent 65%);
      z-index:-1;
    }
    .hero-layout{
      display:grid;
      grid-template-columns:1.06fr .94fr;
      gap:52px;
      align-items:center;
      padding:86px 0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 13px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:999px;
      background:rgba(255,255,255,.1);
      backdrop-filter:blur(12px);
      color:#f3ecff;
      font-size:14px;
      font-weight:800;
      margin-bottom:22px;
    }
    .eyebrow::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(249,115,22,.16);
    }
    .hero h1{
      font-size:clamp(34px,5vw,64px);
      line-height:1.08;
      letter-spacing:-.055em;
      max-width:820px;
      margin-bottom:22px;
    }
    .hero-subtitle{
      font-size:18px;
      color:#d9deea;
      max-width:720px;
      margin-bottom:32px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
      margin-bottom:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      font-weight:850;
      letter-spacing:.01em;
      transition:var(--transition);
      border:1px solid transparent;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--accent),#fb923c);
      color:#fff;
      box-shadow:0 18px 38px rgba(249,115,22,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 52px rgba(249,115,22,.33)}
    .btn-light{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.2);
      backdrop-filter:blur(12px);
    }
    .btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
    .hero-note{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:#cbd2e2;
      font-size:14px;
    }
    .hero-note span{
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.12);
    }
    .safety-panel{
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow-lg);
      backdrop-filter:blur(18px);
    }
    .safety-image{
      border-radius:24px;
      overflow:hidden;
      position:relative;
      min-height:250px;
      background:#111827;
    }
    .safety-image img{
      width:100%;
      height:250px;
      object-fit:cover;
      opacity:.88;
    }
    .safety-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent,rgba(15,17,23,.76));
    }
    .panel-caption{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:2;
    }
    .panel-caption strong{
      display:block;
      font-size:20px;
      margin-bottom:4px;
    }
    .panel-caption p{
      color:#d9deea;
      font-size:14px;
    }
    .check-list{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .check-item{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.12);
    }
    .check-icon{
      flex:0 0 24px;
      width:24px;
      height:24px;
      border-radius:50%;
      background:rgba(22,163,74,.18);
      color:#86efac;
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      font-size:13px;
    }
    .check-item b{display:block;margin-bottom:2px}
    .check-item p{color:#cdd4e4;font-size:14px}

    main{background:transparent}
    .section{
      padding:86px 0;
      position:relative;
    }
    .section.compact{padding:64px 0}
    .section-head{
      max-width:760px;
      margin-bottom:34px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary-dark);
      background:var(--primary-soft);
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:900;
      margin-bottom:14px;
    }
    .section h2{
      font-size:clamp(28px,3.6vw,44px);
      line-height:1.16;
      letter-spacing:-.04em;
      margin-bottom:14px;
    }
    .section-desc{
      color:var(--muted);
      font-size:17px;
    }
    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }
    .grid-2{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:24px;
      align-items:stretch;
    }
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid var(--border);
      border-radius:var(--radius);
      padding:24px;
      box-shadow:var(--shadow-sm);
      transition:var(--transition);
    }
    .card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
      border-color:rgba(124,58,237,.22);
    }
    .icon-box{
      width:48px;
      height:48px;
      border-radius:16px;
      display:flex;
      align-items:center;
      justify-content:center;
      margin-bottom:18px;
      color:#fff;
      font-weight:950;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 14px 30px rgba(124,58,237,.2);
    }
    .card h3{
      font-size:20px;
      margin-bottom:10px;
      letter-spacing:-.02em;
    }
    .card p{
      color:var(--muted);
      font-size:15px;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:var(--surface);
      border:1px solid var(--border);
      color:#475467;
      font-size:13px;
      font-weight:800;
    }
    .tag.warn{
      background:var(--accent-soft);
      border-color:#fed7aa;
      color:#9a3412;
    }

    .feature-band{
      background:var(--bg);
      color:#fff;
      overflow:hidden;
    }
    .feature-band::before{
      content:"";
      position:absolute;
      right:-160px;
      top:-160px;
      width:420px;
      height:420px;
      background:radial-gradient(circle,rgba(124,58,237,.42),transparent 68%);
    }
    .feature-band .section-desc{color:var(--muted-dark)}
    .feature-band .section-kicker{
      color:#f4efff;
      background:rgba(124,58,237,.22);
      border:1px solid rgba(255,255,255,.12);
    }
    .privacy-board{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:center;
    }
    .image-card{
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow-lg);
      border:1px solid rgba(255,255,255,.12);
      background:#111827;
    }
    .image-card img{
      width:100%;
      min-height:430px;
      object-fit:cover;
      opacity:.86;
    }
    .board-list{
      display:grid;
      gap:16px;
    }
    .board-item{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:16px;
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      transition:var(--transition);
    }
    .board-item:hover{
      background:rgba(255,255,255,.12);
      transform:translateX(4px);
    }
    .board-num{
      width:38px;
      height:38px;
      border-radius:14px;
      background:rgba(249,115,22,.16);
      color:#fdba74;
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:950;
    }
    .board-item h3{
      font-size:18px;
      margin-bottom:5px;
    }
    .board-item p{
      color:#cdd4e4;
      font-size:15px;
    }

    .scenario-wrap{
      display:grid;
      grid-template-columns:1fr 1fr 1fr 1fr;
      gap:16px;
    }
    .scenario{
      min-height:220px;
      padding:22px;
      border-radius:24px;
      background:linear-gradient(180deg,#fff,#f7f8fc);
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
      position:relative;
      overflow:hidden;
    }
    .scenario::after{
      content:"";
      position:absolute;
      width:120px;
      height:120px;
      right:-52px;
      bottom:-52px;
      background:radial-gradient(circle,var(--primary-soft),transparent 70%);
    }
    .scenario b{
      display:inline-flex;
      margin-bottom:36px;
      padding:7px 11px;
      border-radius:999px;
      background:#fff;
      color:var(--primary-dark);
      border:1px solid var(--border);
      font-size:13px;
    }
    .scenario h3{
      font-size:19px;
      margin-bottom:8px;
    }
    .scenario p{
      color:var(--muted);
      font-size:14px;
      position:relative;
      z-index:1;
    }

    .steps{
      counter-reset:step;
      display:grid;
      gap:18px;
    }
    .step{
      counter-increment:step;
      display:grid;
      grid-template-columns:auto 1fr;
      gap:18px;
      padding:22px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      box-shadow:var(--shadow-sm);
    }
    .step::before{
      content:counter(step);
      width:44px;
      height:44px;
      border-radius:16px;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      color:#fff;
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:950;
      box-shadow:0 14px 28px rgba(124,58,237,.22);
    }
    .step h3{
      font-size:19px;
      margin-bottom:6px;
    }
    .step p{
      color:var(--muted);
      font-size:15px;
    }

    .notice{
      border-radius:var(--radius-lg);
      padding:28px;
      background:
        linear-gradient(135deg,rgba(124,58,237,.1),rgba(249,115,22,.1)),
        #fff;
      border:1px solid rgba(124,58,237,.16);
      box-shadow:var(--shadow-sm);
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
    }
    .notice h2{
      font-size:30px;
      margin-bottom:8px;
    }
    .notice p{color:var(--muted)}
    .notice-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
      max-width:360px;
    }
    .badge{
      padding:9px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--border);
      color:#344054;
      font-weight:850;
      font-size:13px;
      box-shadow:0 8px 18px rgba(15,17,23,.06);
    }

    .faq{
      display:grid;
      gap:14px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-radius:20px;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }
    .faq-question{
      width:100%;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      text-align:left;
      font-weight:900;
      color:var(--text);
    }
    .faq-question:hover{
      background:var(--surface);
    }
    .faq-question span:last-child{
      width:28px;
      height:28px;
      flex:0 0 28px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      transition:var(--transition);
    }
    .faq-answer{
      padding:0 22px 20px;
      color:var(--muted);
      display:none;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}

    .cta{
      padding:78px 0;
      background:
        linear-gradient(135deg,rgba(15,17,23,.9),rgba(91,33,182,.86)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;
    }
    .cta-box{
      display:grid;
      grid-template-columns:1fr auto;
      gap:30px;
      align-items:center;
    }
    .cta h2{
      font-size:clamp(30px,4vw,48px);
      line-height:1.15;
      letter-spacing:-.04em;
      margin-bottom:12px;
    }
    .cta p{
      color:#d9deea;
      max-width:760px;
      font-size:17px;
    }

    .site-footer{
      background:#0b0d13;
      color:#d6dbea;
      padding:62px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .8fr;
      gap:40px;
      padding-bottom:34px;
      border-bottom:1px solid var(--border-dark);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
      font-weight:900;
    }
    .footer-brand .brand-name{color:#fff}
    .footer-col p{
      color:#aeb6c7;
      max-width:520px;
      font-size:14px;
    }
    .footer-col h3{
      color:#fff;
      font-size:16px;
      margin-bottom:14px;
    }
    .footer-col a{
      display:block;
      color:#aeb6c7;
      font-size:14px;
      padding:5px 0;
      transition:var(--transition);
    }
    .footer-col a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:22px;
      color:#929bad;
      font-size:13px;
    }

    @media (max-width:1024px){
      .hero-layout,.privacy-board,.cta-box,.notice{
        grid-template-columns:1fr;
      }
      .scenario-wrap{
        grid-template-columns:repeat(2,1fr);
      }
      .notice-badges{
        justify-content:flex-start;
        max-width:none;
      }
      .hero{min-height:auto}
    }

    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .header-inner{min-height:68px}
      .menu-toggle{display:flex}
      .nav-menu{
        position:absolute;
        left:14px;
        right:14px;
        top:74px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:22px;
        background:rgba(255,255,255,.96);
        box-shadow:var(--shadow-md);
      }
      .nav-menu.open{display:flex}
      .nav-menu a{
        justify-content:flex-start;
        min-height:44px;
        padding:0 14px;
      }
      .hero-layout{padding:64px 0;gap:28px}
      .hero-subtitle{font-size:16px}
      .grid-3,.grid-2{
        grid-template-columns:1fr;
      }
      .section{padding:66px 0}
      .section.compact{padding:52px 0}
      .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
      }
      .footer-bottom{
        flex-direction:column;
      }
    }

    @media (max-width:520px){
      .brand-name{font-size:15px;max-width:190px;overflow:hidden;text-overflow:ellipsis}
      .hero-actions .btn{width:100%}
      .scenario-wrap{grid-template-columns:1fr}
      .step{grid-template-columns:1fr}
      .safety-panel{padding:14px;border-radius:22px}
      .safety-image img{height:220px}
      .card,.notice{padding:20px}
      .cta{padding:60px 0}
    }