/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-2:#091827;
      --bg-3:#0b1020;
      --surface:rgba(255,255,255,.07);
      --surface-strong:rgba(10,25,45,.78);
      --surface-soft:rgba(255,255,255,.045);
      --border:rgba(148,163,184,.22);
      --border-strong:rgba(53,167,255,.42);
      --line:rgba(255,255,255,.10);
      --text:#f5f7fa;
      --muted:#a7b3c5;
      --weak:#6b7890;
      --primary:#35a7ff;
      --secondary:#8b5cf6;
      --accent:#22d3ee;
      --warning:#f59e0b;
      --success:#34d399;
      --danger:#fb7185;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-blue:0 22px 70px rgba(53,167,255,.16);
      --radius-xl:28px;
      --radius-lg:24px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1200px;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 10% 8%,rgba(53,167,255,.28),transparent 32%),
        radial-gradient(circle at 86% 6%,rgba(139,92,246,.26),transparent 30%),
        radial-gradient(circle at 50% 100%,rgba(34,211,238,.10),transparent 34%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 45%,var(--bg-3));
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),rgba(0,0,0,.18));
    }
    body::after{
      content:"";
      position:fixed;
      inset:-20%;
      pointer-events:none;
      z-index:-1;
      background:
        linear-gradient(115deg,transparent 10%,rgba(53,167,255,.08) 24%,transparent 38%),
        linear-gradient(70deg,transparent 45%,rgba(139,92,246,.08) 54%,transparent 70%);
      filter:blur(8px);
      opacity:.75;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(53,167,255,.32);color:#fff}
    :focus-visible{outline:3px solid rgba(34,211,238,.68);outline-offset:3px;border-radius:10px}
    .container{width:min(100% - 64px,var(--container));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:74px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 13px;
      border:1px solid rgba(53,167,255,.26);
      border-radius:999px;
      color:#dbeafe;
      background:linear-gradient(135deg,rgba(53,167,255,.16),rgba(139,92,246,.10));
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
      font-size:14px;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 18px var(--accent);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:32px;
      margin-bottom:34px;
    }
    .section-kicker{color:var(--accent);font-size:14px;font-weight:700;letter-spacing:.08em;margin-bottom:8px}
    h1,h2,h3{line-height:1.18;letter-spacing:-.02em}
    h1{font-size:clamp(36px,5vw,60px);font-weight:900}
    h2{font-size:clamp(30px,3.4vw,42px);font-weight:850}
    h3{font-size:clamp(20px,2vw,25px);font-weight:800}
    p{color:var(--muted)}
    .lead{font-size:18px;color:#c8d3e4;line-height:1.9}
    .gradient-text{
      background:linear-gradient(100deg,#fff 0%,#bfe8ff 38%,#c6b8ff 78%,#fff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid rgba(255,255,255,.08);
      background:rgba(7,17,31,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 12px 34px rgba(0,0,0,.18);
    }
    .nav{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:
        radial-gradient(circle at 70% 25%,rgba(255,255,255,.35),transparent 18%),
        linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 0 30px rgba(53,167,255,.28);
      position:relative;
    }
    .brand-mark::before{
      content:"";
      width:0;height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      transform:translateX(2px);
      filter:drop-shadow(0 0 8px rgba(255,255,255,.55));
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
      min-width:0;
    }
    .brand-main{
      max-width:330px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:17px;
    }
    .brand-sub{font-size:12px;color:var(--weak);font-weight:600;letter-spacing:.04em;margin-top:3px}
    .nav-links{
      display:flex;
      align-items:center;
      gap:4px;
    }
    .nav-links a,.mega-trigger{
      position:relative;
      padding:10px 13px;
      border-radius:999px;
      color:#cbd5e1;
      font-size:15px;
      font-weight:700;
      transition:.25s ease;
      background:transparent;
    }
    .nav-links a::after,.mega-trigger::after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:6px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--secondary));
      transform:scaleX(0);
      transform-origin:center;
      transition:.25s ease;
      box-shadow:0 0 12px rgba(53,167,255,.6);
    }
    .nav-links a:hover,.mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{
      color:#fff;
      background:rgba(255,255,255,.06);
    }
    .nav-links a:hover::after,.nav-links a.active::after,.mega-wrap:hover .mega-trigger::after,.mega-wrap:focus-within .mega-trigger::after{transform:scaleX(1)}
    .nav-links a.active{color:#fff;background:rgba(53,167,255,.11)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .mega-wrap{position:relative}
    .mega-panel{
      position:absolute;
      top:calc(100% + 18px);
      right:0;
      width:430px;
      padding:16px;
      border:1px solid var(--border);
      border-radius:24px;
      background:rgba(8,18,33,.92);
      backdrop-filter:blur(24px);
      box-shadow:var(--shadow);
      opacity:0;
      visibility:hidden;
      transform:translateY(10px);
      transition:.25s ease;
    }
    .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{
      opacity:1;
      visibility:visible;
      transform:translateY(0);
    }
    .mega-panel::before{
      content:"";
      position:absolute;
      top:-18px;
      right:30px;
      width:160px;
      height:18px;
    }
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .mega-card{
      padding:16px;
      border-radius:18px;
      background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
      border:1px solid rgba(255,255,255,.10);
      transition:.25s ease;
    }
    .mega-card:hover{border-color:rgba(34,211,238,.42);transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.22)}
    .mega-icon{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;background:rgba(53,167,255,.14);color:var(--accent);margin-bottom:10px}
    .mega-card strong{display:block;font-size:15px;margin-bottom:4px}
    .mega-card span{display:block;font-size:13px;color:var(--muted);line-height:1.55}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      color:#fff;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
    }
    .menu-toggle span{
      display:block;
      width:20px;
      height:2px;
      margin:5px auto;
      border-radius:99px;
      background:#fff;
      transition:.25s ease;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:12px 22px;
      border-radius:999px;
      font-weight:800;
      color:#fff;
      border:1px solid transparent;
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 34px rgba(53,167,255,.28),inset 0 1px 0 rgba(255,255,255,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 46px rgba(139,92,246,.28),0 0 0 5px rgba(53,167,255,.08)}
    .btn-secondary{
      background:rgba(255,255,255,.06);
      border-color:rgba(34,211,238,.28);
      color:#d6f7ff;
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.08);box-shadow:0 16px 40px rgba(34,211,238,.12)}
    .hero{
      position:relative;
      padding:88px 0 48px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(420px,.88fr);
      gap:54px;
      align-items:center;
    }
    .hero-copy h1{margin:20px 0 22px}
    .hero-copy .lead{max-width:670px}
    .hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:32px}
    .trust-row{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
      color:#cbd5e1;
      font-size:14px;
    }
    .trust-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.10);
    }
    .trust-pill i{
      width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 12px rgba(52,211,153,.8)
    }
    .video-console{
      position:relative;
      border:1px solid rgba(148,163,184,.24);
      border-radius:32px;
      padding:18px;
      background:
        linear-gradient(145deg,rgba(255,255,255,.11),rgba(255,255,255,.035)),
        rgba(10,25,45,.64);
      box-shadow:var(--shadow),0 0 80px rgba(53,167,255,.12);
      backdrop-filter:blur(20px);
      transform:perspective(1000px) rotateY(-5deg) rotateX(2deg);
    }
    .video-console::before{
      content:"";
      position:absolute;
      inset:-2px;
      z-index:-1;
      border-radius:34px;
      background:linear-gradient(135deg,rgba(53,167,255,.45),rgba(139,92,246,.28),rgba(34,211,238,.18));
      opacity:.55;
      filter:blur(18px);
    }
    .console-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      margin-bottom:14px;
      color:var(--muted);
      font-size:13px;
    }
    .dots{display:flex;gap:7px}
    .dots span{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.2)}
    .dots span:nth-child(1){background:#fb7185}
    .dots span:nth-child(2){background:#f59e0b}
    .dots span:nth-child(3){background:#34d399}
    .screen{
      min-height:310px;
      border-radius:24px;
      overflow:hidden;
      position:relative;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 25% 25%,rgba(53,167,255,.42),transparent 24%),
        radial-gradient(circle at 70% 34%,rgba(139,92,246,.42),transparent 26%),
        linear-gradient(135deg,rgba(5,12,24,.92),rgba(12,33,59,.82));
    }
    .screen::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,transparent,rgba(255,255,255,.10),transparent),
        repeating-linear-gradient(0deg,rgba(255,255,255,.06) 0 1px,transparent 1px 8px);
      opacity:.32;
      mix-blend-mode:screen;
    }
    .screen::after{
      content:"";
      position:absolute;
      inset:22px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.035);
      backdrop-filter:blur(6px);
    }
    .play{
      position:absolute;
      z-index:2;
      top:50%;
      left:50%;
      width:76px;
      height:76px;
      transform:translate(-50%,-50%);
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.28);
      box-shadow:0 0 40px rgba(53,167,255,.34);
      backdrop-filter:blur(12px);
    }
    .play::before{
      content:"";
      margin-left:5px;
      width:0;height:0;
      border-top:14px solid transparent;
      border-bottom:14px solid transparent;
      border-left:22px solid #fff;
    }
    .status-tags{
      position:absolute;
      z-index:3;
      top:18px;
      left:18px;
      right:18px;
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      color:#eaf8ff;
      background:rgba(7,17,31,.56);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(10px);
    }
    .tag.warning{color:#ffedc7;border-color:rgba(245,158,11,.38);background:rgba(245,158,11,.12)}
    .progress-wrap{
      position:absolute;
      z-index:3;
      left:18px;
      right:18px;
      bottom:18px;
      padding:14px;
      border-radius:18px;
      background:rgba(7,17,31,.62);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
    }
    .progress-meta{display:flex;justify-content:space-between;color:#dce9f8;font-size:13px;margin-bottom:10px}
    .progress-bar{height:7px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
    .progress-bar span{display:block;width:72%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--accent),var(--secondary));box-shadow:0 0 18px rgba(34,211,238,.55)}
    .console-metrics{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:10px;
      margin-top:14px;
    }
    .mini-metric{
      padding:13px 10px;
      border-radius:17px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.10);
    }
    .mini-metric b{display:block;color:#fff;font-size:20px;line-height:1.15;font-variant-numeric:tabular-nums}
    .mini-metric span{display:block;color:var(--weak);font-size:12px;margin-top:4px}
    .hero-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:54px;
    }
    .strip-item{
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.10);
      position:relative;
      overflow:hidden;
    }
    .strip-item::after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:0;height:2px;
      background:linear-gradient(90deg,var(--primary),transparent);
      opacity:.75;
    }
    .strip-item b{display:block;font-size:22px;font-variant-numeric:tabular-nums}
    .strip-item span{font-size:13px;color:var(--muted)}
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:16px;
    }
    .metric-card{
      padding:22px;
      min-height:190px;
      border-radius:24px;
      background:linear-gradient(145deg,rgba(255,255,255,.085),rgba(255,255,255,.035));
      border:1px solid var(--border);
      box-shadow:0 12px 34px rgba(0,0,0,.18);
      transition:.25s ease;
      position:relative;
      overflow:hidden;
    }
    .metric-card::before{
      content:"";
      position:absolute;
      top:-55px;right:-55px;
      width:120px;height:120px;
      border-radius:50%;
      background:rgba(53,167,255,.16);
      filter:blur(4px);
    }
    .metric-card:hover{transform:translateY(-5px);border-color:rgba(53,167,255,.42);box-shadow:var(--shadow-blue)}
    .metric-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
    .metric-dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px var(--accent)}
    .metric-value{font-size:34px;font-weight:900;line-height:1;color:#fff;font-variant-numeric:tabular-nums}
    .metric-card h3{font-size:18px;margin:12px 0 6px}
    .metric-card p{font-size:14px;line-height:1.65}
    .spark{
      height:36px;
      margin-top:16px;
      border-radius:12px;
      background:
        linear-gradient(135deg,transparent 5%,rgba(34,211,238,.38) 6% 9%,transparent 10% 24%,rgba(139,92,246,.45) 25% 28%,transparent 29% 48%,rgba(53,167,255,.45) 49% 52%,transparent 53%),
        rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .bento{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .bento-card{
      border:1px solid var(--border);
      border-radius:26px;
      background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
      padding:26px;
      min-height:230px;
      box-shadow:var(--shadow);
      transition:.25s ease;
      position:relative;
      overflow:hidden;
    }
    .bento-card:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.45);box-shadow:var(--shadow-blue);background:linear-gradient(145deg,rgba(53,167,255,.10),rgba(255,255,255,.04))}
    .bento-card.large{grid-column:span 6;min-height:330px}
    .bento-card.medium{grid-column:span 4}
    .bento-card.small{grid-column:span 3;min-height:210px}
    .bento-card.wide{grid-column:span 6}
    .icon-box{
      width:48px;height:48px;border-radius:17px;
      display:grid;place-items:center;
      margin-bottom:18px;
      color:#fff;
      background:linear-gradient(135deg,rgba(53,167,255,.34),rgba(139,92,246,.24));
      border:1px solid rgba(255,255,255,.14);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
      font-size:22px;
    }
    .bento-card h3{margin-bottom:10px}
    .bento-card p{max-width:95%;font-size:15.5px}
    .chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
    .chip{
      padding:7px 10px;
      border-radius:999px;
      color:#dff8ff;
      font-size:12px;
      font-weight:800;
      background:rgba(34,211,238,.10);
      border:1px solid rgba(34,211,238,.20);
    }
    .bento-visual{
      position:absolute;
      right:20px;
      bottom:20px;
      width:44%;
      max-width:260px;
      height:120px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 20% 35%,rgba(34,211,238,.28),transparent 30%),
        linear-gradient(135deg,rgba(53,167,255,.20),rgba(139,92,246,.12));
      opacity:.8;
      overflow:hidden;
    }
    .bento-visual::after{
      content:"";
      position:absolute;inset:22px 16px;
      border-top:2px solid rgba(255,255,255,.3);
      border-bottom:2px solid rgba(255,255,255,.12);
      transform:skewY(-10deg);
    }
    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1.08fr;
      gap:20px;
      align-items:stretch;
    }
    .compare-panel{
      padding:28px;
      border-radius:28px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .compare-panel.good{
      border-color:rgba(53,167,255,.38);
      background:
        radial-gradient(circle at 85% 12%,rgba(53,167,255,.20),transparent 28%),
        rgba(255,255,255,.07);
    }
    .compare-panel h3{display:flex;align-items:center;gap:10px;margin-bottom:20px}
    .badge-mark{
      width:28px;height:28px;border-radius:10px;display:grid;place-items:center;
      background:rgba(255,255,255,.08);color:var(--weak);font-size:14px
    }
    .good .badge-mark{background:rgba(34,211,238,.14);color:var(--accent)}
    .compare-list{display:grid;gap:12px}
    .compare-row{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding:15px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
    }
    .compare-row span:first-child{color:#e8eef8;font-weight:750}
    .compare-row span:last-child{color:var(--muted);text-align:right}
    .category-preview{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
    }
    .category-card{
      display:grid;
      grid-template-columns:170px 1fr;
      gap:20px;
      padding:18px;
      border-radius:26px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      transition:.25s ease;
      overflow:hidden;
    }
    .category-card:hover{transform:translateY(-4px);border-color:rgba(53,167,255,.42);box-shadow:var(--shadow-blue)}
    .thumb{
      min-height:154px;
      border-radius:20px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 32% 30%,rgba(53,167,255,.42),transparent 28%),
        radial-gradient(circle at 74% 62%,rgba(139,92,246,.38),transparent 32%),
        linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.12);
    }
    .thumb::before{
      content:"";
      position:absolute;inset:0;
      background:repeating-linear-gradient(90deg,rgba(255,255,255,.10) 0 1px,transparent 1px 12px);
      opacity:.18;
    }
    .thumb::after{
      content:"▶";
      position:absolute;
      top:50%;left:50%;
      transform:translate(-50%,-50%);
      width:48px;height:48px;
      border-radius:50%;
      display:grid;place-items:center;
      background:rgba(7,17,31,.58);
      border:1px solid rgba(255,255,255,.22);
      color:#fff;
      box-shadow:0 0 28px rgba(53,167,255,.28);
    }
    .category-card h3{margin:4px 0 8px}
    .category-card p{font-size:15px}
    .category-meta{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
    .side-insight{
      padding:28px;
      border-radius:28px;
      border:1px solid rgba(245,158,11,.25);
      background:
        radial-gradient(circle at 80% 10%,rgba(245,158,11,.16),transparent 26%),
        rgba(255,255,255,.055);
      box-shadow:var(--shadow);
    }
    .side-insight h3{margin-bottom:12px}
    .insight-list{display:grid;gap:12px;margin-top:20px}
    .insight-item{
      display:flex;
      gap:12px;
      padding:13px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
    }
    .insight-item i{
      width:24px;height:24px;flex:0 0 auto;border-radius:9px;
      background:rgba(245,158,11,.16);
      border:1px solid rgba(245,158,11,.26);
      margin-top:2px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:28px;
      align-items:start;
    }
    .faq-aside{
      padding:28px;
      border-radius:28px;
      border:1px solid var(--border);
      background:linear-gradient(145deg,rgba(53,167,255,.10),rgba(139,92,246,.06));
      position:sticky;
      top:100px;
    }
    .faq-list{display:grid;gap:14px}
    details{
      border:1px solid var(--border);
      border-radius:20px;
      background:rgba(255,255,255,.055);
      overflow:hidden;
      transition:.25s ease;
    }
    details[open]{border-color:rgba(53,167,255,.36);box-shadow:0 14px 40px rgba(0,0,0,.18)}
    summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      font-weight:850;
      color:#fff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      width:28px;height:28px;flex:0 0 auto;
      border-radius:10px;
      display:grid;place-items:center;
      color:var(--accent);
      background:rgba(34,211,238,.10);
      transition:.25s ease;
    }
    details[open] summary::after{content:"–";transform:rotate(180deg)}
    details p{padding:0 22px 22px;font-size:15.5px}
    .contact-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:stretch;
      border:1px solid rgba(53,167,255,.28);
      border-radius:34px;
      padding:24px;
      background:
        radial-gradient(circle at 14% 20%,rgba(53,167,255,.18),transparent 28%),
        radial-gradient(circle at 90% 20%,rgba(139,92,246,.18),transparent 28%),
        rgba(255,255,255,.052);
      box-shadow:var(--shadow);
    }
    .cta-copy{
      padding:28px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:26px;
    }
    .promise-list{display:grid;gap:13px;margin-top:22px}
    .promise-list li{
      list-style:none;
      display:flex;
      align-items:flex-start;
      gap:12px;
      color:#d8e3f2;
    }
    .promise-list li::before{
      content:"";
      width:10px;height:10px;border-radius:50%;
      flex:0 0 auto;
      margin-top:9px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 14px rgba(34,211,238,.55);
    }
    .contact-form{
      padding:28px;
      border-radius:28px;
      background:rgba(7,17,31,.58);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(18px);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;color:#dbe7f6;font-weight:800}
    input,select,textarea{
      width:100%;
      border:1px solid rgba(148,163,184,.22);
      border-radius:16px;
      padding:13px 14px;
      color:#fff;
      background:rgba(255,255,255,.06);
      outline:none;
      transition:.25s ease;
    }
    textarea{min-height:126px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#718198}
    input:focus,select:focus,textarea:focus{
      border-color:rgba(34,211,238,.62);
      box-shadow:0 0 0 4px rgba(34,211,238,.10);
      background:rgba(255,255,255,.08);
    }
    select option{background:#0b1728;color:#fff}
    .form-note{font-size:13px;color:var(--weak);margin-top:14px}
    .form-submit{margin-top:18px;width:100%}
    .site-footer{
      padding:64px 0 26px;
      background:
        radial-gradient(circle at 15% 0%,rgba(53,167,255,.13),transparent 30%),
        rgba(3,8,16,.52);
      border-top:1px solid rgba(255,255,255,.10);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr .8fr 1fr;
      gap:34px;
      margin-bottom:38px;
    }
    .footer-title{font-size:15px;font-weight:900;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a,.footer-links span{color:var(--muted);font-size:14px}
    .footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:5px}
    .footer-brand p{margin-top:16px;font-size:14px;max-width:410px}
    .compliance{
      padding:14px;
      border-radius:18px;
      background:rgba(245,158,11,.08);
      border:1px solid rgba(245,158,11,.20);
      color:#ffdfaa;
      font-size:13px;
      line-height:1.7;
    }
    .copyright{
      padding-top:24px;
      border-top:1px solid rgba(255,255,255,.08);
      color:var(--weak);
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    @media (max-width:1100px){
      .brand-main{max-width:250px}
      .nav-links a,.mega-trigger{padding-inline:10px;font-size:14px}
      .hero-grid{grid-template-columns:1fr;gap:40px}
      .video-console{transform:none;max-width:720px;margin:auto}
      .metric-grid{grid-template-columns:repeat(3,1fr)}
      .bento-card.large,.bento-card.medium,.bento-card.wide{grid-column:span 6}
      .bento-card.small{grid-column:span 6}
      .category-preview,.compare-wrap,.faq-grid,.contact-wrap{grid-template-columns:1fr}
      .faq-aside{position:relative;top:auto}
      .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
    }
    @media (max-width:860px){
      .container{width:min(100% - 40px,var(--container))}
      .nav{height:70px}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        top:70px;
        left:20px;
        right:20px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:6px;
        padding:16px;
        border:1px solid var(--border);
        border-radius:24px;
        background:rgba(7,17,31,.96);
        backdrop-filter:blur(18px);
        box-shadow:var(--shadow);
      }
      .site-header.menu-open .nav-links{display:flex}
      .nav-links a,.mega-trigger{width:100%;text-align:left;border-radius:14px;min-height:44px}
      .nav-actions{gap:8px}
      .nav-actions > .btn{display:none}
      .mega-wrap{width:100%}
      .mega-panel{
        position:static;
        width:100%;
        margin-top:8px;
        opacity:1;
        visibility:visible;
        transform:none;
        display:none;
        box-shadow:none;
      }
      .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{display:block}
      .hero{padding-top:58px}
      .hero-strip{grid-template-columns:repeat(2,1fr)}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .bento{grid-template-columns:1fr}
      .bento-card.large,.bento-card.medium,.bento-card.wide,.bento-card.small{grid-column:1}
      .section-head{flex-direction:column;align-items:flex-start}
      .category-card{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .console-metrics{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:560px){
      .container{width:min(100% - 32px,var(--container))}
      .section{padding:68px 0}
      .section-tight{padding:56px 0}
      .brand-main{max-width:200px;font-size:15px}
      .brand-sub{display:none}
      .hero-actions .btn{width:100%}
      .hero-strip,.metric-grid,.mega-grid,.form-grid,.footer-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .screen{min-height:260px}
      .contact-wrap{padding:14px;border-radius:26px}
      .cta-copy,.contact-form,.compare-panel,.side-insight{padding:22px}
      .category-card{padding:14px}
      .copyright{display:block}
    }

/* roulang page: category1 */
:root {
      --bg-0: #07111F;
      --bg-1: #091827;
      --bg-2: #0B1020;
      --primary: #35A7FF;
      --secondary: #8B5CF6;
      --accent: #22D3EE;
      --warning: #F59E0B;
      --text: #F5F7FA;
      --muted: #A7B3C5;
      --weak: #6B7890;
      --card: rgba(255,255,255,0.07);
      --card-strong: rgba(10,25,45,0.78);
      --border: rgba(148,163,184,0.22);
      --divider: rgba(255,255,255,0.10);
      --shadow: 0 18px 50px rgba(0,0,0,0.28);
      --shadow-hover: 0 22px 70px rgba(53,167,255,0.16);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1200px;
      --header-h: 78px;
      --ease: 220ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      line-height: 1.75;
      background:
        radial-gradient(circle at 12% 4%, rgba(53,167,255,0.22), transparent 30%),
        radial-gradient(circle at 86% 8%, rgba(139,92,246,0.22), transparent 28%),
        radial-gradient(circle at 50% 92%, rgba(34,211,238,0.10), transparent 36%),
        linear-gradient(135deg, var(--bg-0), var(--bg-1) 45%, var(--bg-2));
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -2;
      background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: radial-gradient(circle at 50% 16%, #000, transparent 78%);
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      background:
        linear-gradient(115deg, transparent 0%, rgba(53,167,255,0.06) 34%, transparent 43%),
        linear-gradient(72deg, transparent 12%, rgba(139,92,246,0.055) 55%, transparent 70%);
      opacity: .7;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--ease), opacity var(--ease), transform var(--ease);
    }

    button, input, select, textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    img, svg {
      max-width: 100%;
      display: block;
    }

    :focus-visible {
      outline: 3px solid rgba(34,211,238,0.65);
      outline-offset: 4px;
      border-radius: 12px;
    }

    .container {
      width: min(100% - 64px, var(--container));
      margin-inline: auto;
    }

    .section {
      padding: 96px 0;
      position: relative;
    }

    .section-tight {
      padding: 72px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 14px;
      border: 1px solid rgba(34,211,238,0.28);
      border-radius: 999px;
      background: rgba(34,211,238,0.08);
      color: #DDFBFF;
      font-size: 14px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 20px rgba(34,211,238,.8);
    }

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

    .section-head.center {
      text-align: center;
      margin-inline: auto;
    }

    h1, h2, h3 {
      line-height: 1.16;
      letter-spacing: -0.035em;
    }

    h1 {
      margin-top: 18px;
      font-size: clamp(34px, 5vw, 58px);
      font-weight: 900;
    }

    h2 {
      font-size: clamp(28px, 3.6vw, 40px);
      font-weight: 850;
      margin-top: 16px;
    }

    h3 {
      font-size: 22px;
      font-weight: 800;
    }

    p {
      color: var(--muted);
    }

    .lead {
      margin-top: 20px;
      font-size: 18px;
      max-width: 720px;
    }

    .gradient-text {
      background: linear-gradient(100deg, #F5F7FA 0%, #9FE5FF 42%, #C8B6FF 78%, #FFFFFF 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      min-height: var(--header-h);
      background: rgba(7,17,31,0.78);
      border-bottom: 1px solid var(--divider);
      backdrop-filter: blur(20px);
      box-shadow: 0 10px 40px rgba(0,0,0,0.16);
    }

    .nav-wrap {
      min-height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .brand-mark {
      position: relative;
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      border-radius: 16px;
      background:
        radial-gradient(circle at 38% 36%, rgba(255,255,255,.95) 0 8%, transparent 9%),
        linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 0 34px rgba(53,167,255,.35);
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      left: 16px;
      top: 12px;
      border-left: 12px solid rgba(255,255,255,0.92);
      border-top: 8px solid transparent;
      border-bottom: 8px solid transparent;
      filter: drop-shadow(0 0 8px rgba(255,255,255,.45));
    }

    .brand-text {
      display: grid;
      line-height: 1.2;
    }

    .brand-main {
      font-size: 16px;
      font-weight: 900;
      letter-spacing: -0.03em;
      white-space: nowrap;
    }

    .brand-sub {
      color: var(--weak);
      font-size: 12px;
      margin-top: 2px;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px;
      border: 1px solid rgba(148,163,184,0.16);
      border-radius: 999px;
      background: rgba(255,255,255,0.045);
    }

    .nav-links a {
      position: relative;
      padding: 9px 14px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 750;
      white-space: nowrap;
    }

    .nav-links a:hover {
      color: var(--text);
      background: rgba(255,255,255,0.07);
    }

    .nav-links a.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(53,167,255,0.24), rgba(139,92,246,0.22));
      box-shadow: inset 0 0 0 1px rgba(53,167,255,0.26), 0 0 24px rgba(53,167,255,0.12);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .mega {
      position: relative;
    }

    .mega-toggle {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: 999px;
      color: #DDFBFF;
      background: rgba(34,211,238,0.08);
      border: 1px solid rgba(34,211,238,0.22);
      font-size: 14px;
      font-weight: 800;
      transition: transform var(--ease), background var(--ease), box-shadow var(--ease);
    }

    .mega:hover .mega-toggle,
    .mega:focus-within .mega-toggle {
      transform: translateY(-1px);
      background: rgba(34,211,238,0.14);
      box-shadow: 0 12px 30px rgba(34,211,238,0.12);
    }

    .mega-panel {
      position: absolute;
      right: 0;
      top: calc(100% + 14px);
      width: 390px;
      padding: 16px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(8,18,34,0.92);
      backdrop-filter: blur(22px);
      box-shadow: 0 26px 80px rgba(0,0,0,.38);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: opacity var(--ease), visibility var(--ease), transform var(--ease);
    }

    .mega:hover .mega-panel,
    .mega:focus-within .mega-panel {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .mega-grid {
      display: grid;
      gap: 10px;
    }

    .mega-card {
      display: grid;
      grid-template-columns: 38px 1fr;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,0.055);
      border: 1px solid rgba(148,163,184,0.14);
    }

    .mega-card:hover {
      background: rgba(53,167,255,0.10);
      border-color: rgba(53,167,255,0.28);
    }

    .mega-icon {
      display: grid;
      place-items: center;
      width: 38px;
      height: 38px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(53,167,255,0.22), rgba(139,92,246,0.20));
      color: var(--accent);
      font-weight: 900;
    }

    .mega-card strong {
      display: block;
      font-size: 15px;
      line-height: 1.35;
      margin-bottom: 3px;
    }

    .mega-card span {
      display: block;
      color: var(--weak);
      font-size: 13px;
      line-height: 1.5;
    }

    .mobile-menu-button {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      color: var(--text);
      background: rgba(255,255,255,0.07);
      border: 1px solid var(--border);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 850;
      color: #fff;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 14px 36px rgba(53,167,255,0.26);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 50px rgba(139,92,246,0.30);
    }

    .btn-secondary {
      color: #DDFBFF;
      background: rgba(255,255,255,0.055);
      border: 1px solid rgba(34,211,238,0.26);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(34,211,238,0.10);
      box-shadow: 0 16px 40px rgba(34,211,238,0.12);
    }

    .category-hero {
      padding: 84px 0 52px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.02fr .98fr;
      gap: 42px;
      align-items: center;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .mini-chip,
    .filter-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      padding: 8px 12px;
      color: #DCE9FA;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(148,163,184,0.18);
      font-size: 14px;
      font-weight: 700;
    }

    .mini-chip::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 16px rgba(53,167,255,.8);
    }

    .visual-stage {
      position: relative;
      min-height: 480px;
      perspective: 1100px;
    }

    .visual-stage::before,
    .visual-stage::after {
      content: "";
      position: absolute;
      border-radius: 999px;
      filter: blur(28px);
      opacity: .75;
      pointer-events: none;
    }

    .visual-stage::before {
      width: 210px;
      height: 210px;
      right: 12%;
      top: 4%;
      background: rgba(139,92,246,0.28);
    }

    .visual-stage::after {
      width: 260px;
      height: 260px;
      left: 0;
      bottom: 3%;
      background: rgba(53,167,255,0.18);
    }

    .video-console {
      position: relative;
      z-index: 1;
      transform: rotateX(6deg) rotateY(-9deg) rotateZ(1deg);
      padding: 18px;
      border-radius: 30px;
      border: 1px solid rgba(148,163,184,0.24);
      background: linear-gradient(145deg, rgba(255,255,255,0.12), rgba(10,25,45,0.72));
      backdrop-filter: blur(20px);
      box-shadow: 0 34px 100px rgba(0,0,0,0.38);
    }

    .screen {
      position: relative;
      height: 286px;
      overflow: hidden;
      border-radius: 24px;
      border: 1px solid rgba(255,255,255,0.12);
      background:
        radial-gradient(circle at 32% 26%, rgba(53,167,255,0.58), transparent 22%),
        radial-gradient(circle at 70% 40%, rgba(139,92,246,0.52), transparent 26%),
        linear-gradient(135deg, rgba(9,24,39,0.95), rgba(11,16,32,0.98));
    }

    .screen::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
      background-size: 22px 22px;
      opacity: .46;
    }

    .screen::after {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 18px;
      border: 1px solid rgba(255,255,255,0.12);
      background: linear-gradient(135deg, rgba(255,255,255,0.08), transparent 58%);
    }

    .play-button {
      position: absolute;
      left: 50%;
      top: 50%;
      z-index: 3;
      width: 74px;
      height: 74px;
      transform: translate(-50%, -50%);
      border-radius: 50%;
      background: rgba(245,247,250,0.92);
      box-shadow: 0 0 50px rgba(53,167,255,.42);
    }

    .play-button::after {
      content: "";
      position: absolute;
      left: 30px;
      top: 23px;
      border-left: 20px solid #0A182B;
      border-top: 14px solid transparent;
      border-bottom: 14px solid transparent;
    }

    .status-pill {
      position: absolute;
      z-index: 4;
      top: 18px;
      left: 18px;
      padding: 8px 12px;
      border-radius: 999px;
      color: #FFF6D8;
      font-size: 13px;
      font-weight: 850;
      background: rgba(245,158,11,0.14);
      border: 1px solid rgba(245,158,11,0.26);
      backdrop-filter: blur(10px);
    }

    .console-footer {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 14px;
    }

    .console-metric {
      padding: 16px;
      border-radius: 18px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(148,163,184,0.16);
    }

    .console-metric strong {
      display: block;
      font-size: 25px;
      line-height: 1;
      color: var(--accent);
      font-variant-numeric: tabular-nums;
    }

    .console-metric span {
      display: block;
      margin-top: 8px;
      color: var(--weak);
      font-size: 13px;
    }

    .filter-panel {
      position: sticky;
      top: calc(var(--header-h) + 14px);
      z-index: 20;
      padding: 14px;
      border-radius: 24px;
      border: 1px solid rgba(148,163,184,0.16);
      background: rgba(8,18,34,0.76);
      backdrop-filter: blur(18px);
      box-shadow: 0 14px 40px rgba(0,0,0,0.18);
    }

    .filter-row {
      display: flex;
      align-items: center;
      gap: 12px;
      overflow-x: auto;
      padding-bottom: 2px;
      scrollbar-width: thin;
      scrollbar-color: rgba(53,167,255,0.45) transparent;
    }

    .filter-label {
      flex: 0 0 auto;
      color: var(--weak);
      font-size: 14px;
      font-weight: 800;
      padding-left: 4px;
    }

    .filter-chip {
      flex: 0 0 auto;
      cursor: pointer;
      transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
    }

    .filter-chip:hover,
    .filter-chip.active {
      transform: translateY(-1px);
      color: #fff;
      background: linear-gradient(135deg, rgba(53,167,255,0.22), rgba(139,92,246,0.18));
      border-color: rgba(53,167,255,0.35);
    }

    .content-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
      margin-top: 30px;
    }

    .video-card {
      overflow: hidden;
      border-radius: 24px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.065);
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease);
    }

    .video-card:hover {
      transform: translateY(-6px);
      border-color: rgba(53,167,255,0.38);
      box-shadow: var(--shadow-hover);
      background: rgba(255,255,255,0.085);
    }

    .thumb {
      position: relative;
      height: 190px;
      overflow: hidden;
      background:
        radial-gradient(circle at 24% 28%, rgba(53,167,255,0.62), transparent 24%),
        radial-gradient(circle at 74% 42%, rgba(139,92,246,0.50), transparent 27%),
        linear-gradient(135deg, rgba(9,24,39,1), rgba(11,16,32,1));
    }

    .thumb::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(120deg, transparent, rgba(255,255,255,0.14), transparent),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.06) 0 1px, transparent 1px 12px);
      transform: translateX(-30%);
      transition: transform 500ms ease;
    }

    .video-card:hover .thumb::before {
      transform: translateX(28%);
    }

    .thumb-play {
      position: absolute;
      left: 18px;
      bottom: 18px;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: rgba(245,247,250,0.92);
      box-shadow: 0 0 34px rgba(34,211,238,0.34);
    }

    .thumb-play::after {
      content: "";
      position: absolute;
      left: 20px;
      top: 15px;
      border-left: 13px solid #0A182B;
      border-top: 9px solid transparent;
      border-bottom: 9px solid transparent;
    }

    .thumb-tag {
      position: absolute;
      right: 14px;
      top: 14px;
      padding: 7px 10px;
      border-radius: 999px;
      color: #ECFEFF;
      font-size: 12px;
      font-weight: 850;
      background: rgba(7,17,31,0.62);
      border: 1px solid rgba(255,255,255,0.16);
      backdrop-filter: blur(12px);
    }

    .card-body {
      padding: 22px;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 9px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 850;
      color: #DDFBFF;
      background: rgba(53,167,255,0.10);
      border: 1px solid rgba(53,167,255,0.18);
    }

    .tag.violet {
      color: #EEE8FF;
      background: rgba(139,92,246,0.12);
      border-color: rgba(139,92,246,0.20);
    }

    .tag.safe {
      color: #FFF6D8;
      background: rgba(245,158,11,0.10);
      border-color: rgba(245,158,11,0.20);
    }

    .video-card h3 {
      margin-bottom: 10px;
      font-size: 20px;
    }

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

    .card-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 18px;
      padding-top: 16px;
      border-top: 1px solid var(--divider);
    }

    .card-foot span {
      color: var(--weak);
      font-size: 13px;
      font-weight: 700;
    }

    .text-link {
      color: #A9EBFF;
      font-size: 14px;
      font-weight: 850;
    }

    .text-link:hover {
      color: #fff;
      text-decoration: underline;
      text-underline-offset: 5px;
    }

    .feature-banner {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 32px;
      align-items: center;
      padding: 34px;
      border-radius: 30px;
      border: 1px solid rgba(148,163,184,0.22);
      background:
        radial-gradient(circle at 78% 26%, rgba(139,92,246,0.28), transparent 30%),
        radial-gradient(circle at 22% 70%, rgba(34,211,238,0.14), transparent 32%),
        rgba(255,255,255,0.07);
      box-shadow: var(--shadow);
      backdrop-filter: blur(20px);
    }

    .feature-banner::before {
      content: "";
      position: absolute;
      inset: auto -12% -35% auto;
      width: 420px;
      height: 420px;
      border-radius: 50%;
      background: rgba(53,167,255,0.16);
      filter: blur(22px);
    }

    .banner-points {
      display: grid;
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .point {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 14px;
      border-radius: 18px;
      background: rgba(7,17,31,0.42);
      border: 1px solid rgba(255,255,255,0.10);
    }

    .point i {
      display: grid;
      place-items: center;
      width: 30px;
      height: 30px;
      flex: 0 0 30px;
      border-radius: 12px;
      font-style: normal;
      font-weight: 900;
      color: #06111F;
      background: var(--accent);
    }

    .point strong {
      display: block;
      margin-bottom: 2px;
    }

    .point span {
      display: block;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.55;
    }

    .topic-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 28px;
    }

    .topic-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255,255,255,0.055);
      border: 1px solid rgba(148,163,184,0.16);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .topic-card:hover {
      transform: translateY(-4px);
      border-color: rgba(34,211,238,0.28);
      background: rgba(34,211,238,0.07);
    }

    .topic-card .num {
      color: var(--primary);
      font-size: 28px;
      line-height: 1;
      font-weight: 950;
      font-variant-numeric: tabular-nums;
    }

    .topic-card strong {
      display: block;
      margin: 12px 0 6px;
      font-size: 17px;
    }

    .topic-card span {
      display: block;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.55;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 34px;
      align-items: start;
    }

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

    details {
      border: 1px solid var(--border);
      border-radius: 20px;
      background: rgba(255,255,255,0.06);
      backdrop-filter: blur(16px);
      overflow: hidden;
    }

    summary {
      list-style: none;
      cursor: pointer;
      padding: 20px 22px;
      font-size: 17px;
      font-weight: 850;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--accent);
      background: rgba(34,211,238,0.09);
      border: 1px solid rgba(34,211,238,0.18);
      flex: 0 0 28px;
    }

    details[open] summary::after {
      content: "−";
    }

    details p {
      padding: 0 22px 20px;
      font-size: 15px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding: 38px;
      border-radius: 32px;
      border: 1px solid rgba(53,167,255,0.26);
      background:
        radial-gradient(circle at 12% 20%, rgba(53,167,255,0.24), transparent 30%),
        radial-gradient(circle at 92% 64%, rgba(139,92,246,0.22), transparent 34%),
        rgba(255,255,255,0.075);
      box-shadow: 0 28px 90px rgba(0,0,0,0.32);
      backdrop-filter: blur(22px);
    }

    .cta-panel h2 {
      margin-top: 0;
    }

    .cta-panel p {
      margin-top: 12px;
      max-width: 760px;
    }

    .site-footer {
      padding: 70px 0 28px;
      border-top: 1px solid var(--divider);
      background:
        radial-gradient(circle at 14% 12%, rgba(53,167,255,0.12), transparent 28%),
        linear-gradient(180deg, rgba(7,17,31,0.25), rgba(3,8,16,0.76));
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.45fr .8fr .75fr 1.05fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand p {
      margin-top: 18px;
      max-width: 420px;
      font-size: 14px;
    }

    .footer-title {
      margin-bottom: 14px;
      font-size: 15px;
      font-weight: 900;
      color: #fff;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a,
    .footer-links span,
    .compliance {
      color: var(--muted);
      font-size: 14px;
    }

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

    .compliance {
      line-height: 1.75;
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      margin-top: 42px;
      padding-top: 22px;
      border-top: 1px solid var(--divider);
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .brand-main {
        max-width: 230px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .nav-links a {
        padding-inline: 10px;
      }

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

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

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

    @media (max-width: 900px) {
      .container {
        width: min(100% - 40px, var(--container));
      }

      .nav-wrap {
        flex-wrap: wrap;
        padding: 14px 0;
      }

      .mobile-menu-button {
        display: inline-grid;
        place-items: center;
      }

      .nav-actions {
        order: 2;
        margin-left: auto;
      }

      .nav-links {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        border-radius: 18px;
      }

      .hero-grid,
      .feature-banner,
      .faq-grid,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .visual-stage {
        min-height: auto;
      }

      .video-console {
        transform: none;
      }

      .cta-panel .btn {
        width: 100%;
      }

      .mega-panel {
        width: min(390px, calc(100vw - 40px));
      }
    }

    @media (max-width: 680px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .section {
        padding: 68px 0;
      }

      .section-tight {
        padding: 54px 0;
      }

      .category-hero {
        padding: 58px 0 36px;
      }

      .brand-sub {
        display: none;
      }

      .brand-main {
        max-width: 210px;
      }

      .nav-actions .mega {
        display: none;
      }

      .hero-actions,
      .trust-row {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .content-grid,
      .topic-strip,
      .console-footer {
        grid-template-columns: 1fr;
      }

      .feature-banner,
      .cta-panel {
        padding: 24px;
        border-radius: 24px;
      }

      .screen {
        height: 230px;
      }

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

      .copyright {
        flex-direction: column;
      }
    }

    @media (max-width: 480px) {
      h1 {
        font-size: 32px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        flex-basis: 38px;
        border-radius: 14px;
      }

      .brand-main {
        max-width: 176px;
        font-size: 15px;
      }

      .nav-links a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
      }

      .filter-panel {
        border-radius: 18px;
      }

      .card-body {
        padding: 18px;
      }
    }

/* roulang page: category2 */
:root{
      --bg-0:#07111f;
      --bg-1:#091827;
      --bg-2:#0b1020;
      --panel:rgba(255,255,255,.07);
      --panel-strong:rgba(10,25,45,.76);
      --panel-soft:rgba(255,255,255,.045);
      --border:rgba(148,163,184,.22);
      --border-strong:rgba(53,167,255,.38);
      --line:rgba(255,255,255,.10);
      --text:#f5f7fa;
      --muted:#a7b3c5;
      --weak:#6b7890;
      --primary:#35a7ff;
      --violet:#8b5cf6;
      --cyan:#22d3ee;
      --amber:#f59e0b;
      --green:#34d399;
      --danger:#fb7185;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-blue:0 22px 70px rgba(53,167,255,.16);
      --glow:0 0 34px rgba(53,167,255,.22);
      --container:1200px;
      --ease:all .24s ease;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 8% 6%,rgba(53,167,255,.28),transparent 32%),
        radial-gradient(circle at 88% 12%,rgba(139,92,246,.24),transparent 34%),
        radial-gradient(circle at 50% 100%,rgba(34,211,238,.10),transparent 42%),
        linear-gradient(135deg,var(--bg-0),var(--bg-2) 58%,#06101d);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.34;
      background-image:
        linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 82%);
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:auto -15% -25% -15%;
      height:45vh;
      background:radial-gradient(circle,rgba(53,167,255,.13),transparent 60%);
      filter:blur(20px);
      pointer-events:none;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(53,167,255,.35);color:#fff}
    :focus-visible{outline:3px solid rgba(34,211,238,.68);outline-offset:4px;border-radius:10px}

    .container{
      width:min(100% - 64px,var(--container));
      margin-inline:auto;
    }
    .section{
      padding:96px 0;
      position:relative;
    }
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 14px;
      border:1px solid rgba(53,167,255,.26);
      border-radius:999px;
      background:rgba(53,167,255,.09);
      color:#d8f2ff;
      font-size:14px;
      letter-spacing:.02em;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--cyan);
      box-shadow:0 0 16px rgba(34,211,238,.85);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(34px,5.2vw,62px);
      line-height:1.12;
      letter-spacing:-.04em;
      margin:22px 0 22px;
    }
    h2{
      font-size:clamp(28px,3.6vw,42px);
      line-height:1.18;
      letter-spacing:-.03em;
      margin:0 0 16px;
    }
    h3{
      font-size:clamp(20px,2vw,26px);
      line-height:1.25;
      margin:0 0 12px;
    }
    p{color:var(--muted)}
    .lead{
      font-size:18px;
      max-width:760px;
      color:#c2ccda;
    }
    .gradient-text{
      background:linear-gradient(100deg,#fff 0%,#bde9ff 36%,#c7b8ff 72%,#7ee8f7 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid var(--line);
      background:rgba(7,17,31,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 14px 42px rgba(0,0,0,.22);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 42px;
      border-radius:15px;
      position:relative;
      background:
        radial-gradient(circle at 35% 35%,#fff 0 6%,transparent 7%),
        linear-gradient(135deg,var(--primary),var(--violet));
      box-shadow:0 0 28px rgba(53,167,255,.34);
    }
    .brand-mark::before{
      content:"";
      position:absolute;
      left:16px;
      top:12px;
      width:0;
      height:0;
      border-top:9px solid transparent;
      border-bottom:9px solid transparent;
      border-left:13px solid rgba(255,255,255,.95);
      filter:drop-shadow(0 0 8px rgba(255,255,255,.55));
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-main{
      font-weight:800;
      color:#fff;
      font-size:15px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:310px;
    }
    .brand-sub{
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:18px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:4px;
      padding:7px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:999px;
      background:rgba(255,255,255,.035);
    }
    .nav-links a{
      position:relative;
      padding:10px 15px;
      border-radius:999px;
      color:#c6d2e4;
      font-size:14px;
      font-weight:650;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(53,167,255,.11);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(53,167,255,.26),rgba(139,92,246,.22));
      box-shadow:inset 0 0 0 1px rgba(53,167,255,.22),0 0 24px rgba(53,167,255,.12);
    }
    .mega{
      position:relative;
    }
    .mega-toggle{
      border:1px solid rgba(34,211,238,.28);
      background:rgba(34,211,238,.08);
      color:#d8fbff;
      border-radius:999px;
      padding:11px 15px;
      font-weight:700;
      transition:var(--ease);
    }
    .mega:hover .mega-toggle,
    .mega:focus-within .mega-toggle{
      transform:translateY(-1px);
      background:rgba(34,211,238,.14);
      box-shadow:0 0 22px rgba(34,211,238,.16);
    }
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 16px);
      width:390px;
      padding:16px;
      border:1px solid var(--border);
      border-radius:24px;
      background:rgba(8,19,35,.94);
      backdrop-filter:blur(22px);
      box-shadow:var(--shadow);
      opacity:0;
      transform:translateY(10px);
      pointer-events:none;
      transition:var(--ease);
    }
    .mega:hover .mega-panel,
    .mega:focus-within .mega-panel{
      opacity:1;
      transform:translateY(0);
      pointer-events:auto;
    }
    .mega-panel::before{
      content:"";
      position:absolute;
      inset:-1px;
      border-radius:24px;
      background:linear-gradient(135deg,rgba(53,167,255,.28),rgba(139,92,246,.18),transparent);
      z-index:-1;
    }
    .mega-title{
      padding:4px 6px 12px;
      color:#fff;
      font-weight:800;
    }
    .mega-card{
      display:grid;
      grid-template-columns:38px 1fr;
      gap:12px;
      padding:12px;
      border-radius:16px;
      transition:var(--ease);
      border:1px solid transparent;
    }
    .mega-card:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(53,167,255,.22);
      transform:translateX(2px);
    }
    .mega-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,rgba(53,167,255,.18),rgba(139,92,246,.18));
      color:#bdecff;
      font-weight:900;
    }
    .mega-card strong{display:block;color:#fff;font-size:14px;margin-bottom:2px}
    .mega-card span{display:block;color:var(--muted);font-size:13px;line-height:1.5}

    .menu-check{display:none}
    .menu-button{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.06);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
    }
    .menu-button span{
      width:20px;
      height:2px;
      background:#fff;
      border-radius:999px;
      transition:var(--ease);
    }

    .hero{
      padding:92px 0 84px;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(430px,.82fr);
      gap:56px;
      align-items:center;
    }
    .hero-copy{
      position:relative;
      z-index:2;
    }
    .hero-copy .brand-kicker{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .mini-tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border:1px solid rgba(255,255,255,.10);
      border-radius:999px;
      background:rgba(255,255,255,.045);
      color:#c5d0df;
      font-size:13px;
    }
    .mini-tag i{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 12px rgba(53,167,255,.7);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin:34px 0 28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid transparent;
      color:#fff;
      font-weight:800;
      transition:var(--ease);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--violet));
      box-shadow:0 14px 36px rgba(53,167,255,.24),inset 0 1px 0 rgba(255,255,255,.24);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 20px 50px rgba(53,167,255,.32),0 0 26px rgba(139,92,246,.18);
      filter:saturate(1.08);
    }
    .btn-secondary{
      border-color:rgba(34,211,238,.30);
      background:rgba(255,255,255,.055);
      color:#c9f7ff;
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:rgba(34,211,238,.10);
      border-color:rgba(34,211,238,.52);
      box-shadow:0 15px 36px rgba(34,211,238,.12);
    }
    .trust-row{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      max-width:680px;
    }
    .trust-item{
      padding:14px 15px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
      color:#c6d2e4;
      font-size:14px;
    }
    .trust-item strong{
      display:block;
      color:#fff;
      font-size:17px;
      line-height:1.2;
      margin-bottom:3px;
      font-variant-numeric:tabular-nums;
    }

    .visual-stage{
      position:relative;
      min-height:560px;
      display:grid;
      place-items:center;
      perspective:1200px;
    }
    .orb{
      position:absolute;
      border-radius:999px;
      filter:blur(10px);
      opacity:.86;
      pointer-events:none;
    }
    .orb.one{width:220px;height:220px;background:rgba(53,167,255,.17);left:-30px;top:20px}
    .orb.two{width:280px;height:280px;background:rgba(139,92,246,.16);right:-38px;bottom:54px}
    .screen-model{
      width:min(100%,520px);
      border-radius:34px;
      padding:18px;
      border:1px solid rgba(148,163,184,.26);
      background:
        linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.035)),
        rgba(10,25,45,.74);
      box-shadow:0 34px 95px rgba(0,0,0,.42),0 0 80px rgba(53,167,255,.14);
      transform:rotateX(8deg) rotateY(-10deg) rotateZ(2deg);
      backdrop-filter:blur(20px);
      position:relative;
      overflow:hidden;
    }
    .screen-model::before{
      content:"";
      position:absolute;
      inset:-40% -20% auto -20%;
      height:55%;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.15),transparent);
      transform:rotate(-12deg);
    }
    .screen-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:14px;
      margin-bottom:14px;
      color:var(--muted);
      font-size:13px;
    }
    .window-dots{display:flex;gap:7px}
    .window-dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.24)}
    .window-dots span:nth-child(1){background:#fb7185}
    .window-dots span:nth-child(2){background:#f59e0b}
    .window-dots span:nth-child(3){background:#34d399}
    .video-window{
      height:286px;
      border-radius:24px;
      position:relative;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 25% 30%,rgba(53,167,255,.42),transparent 30%),
        radial-gradient(circle at 80% 20%,rgba(139,92,246,.40),transparent 28%),
        linear-gradient(135deg,#12233b,#050b16 72%);
    }
    .video-window::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg,rgba(255,255,255,.12),transparent 30%),
        repeating-linear-gradient(90deg,rgba(255,255,255,.055) 0 1px,transparent 1px 22px);
      opacity:.62;
    }
    .play-core{
      position:absolute;
      inset:0;
      margin:auto;
      width:82px;
      height:82px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.26);
      backdrop-filter:blur(16px);
      box-shadow:0 0 42px rgba(53,167,255,.32);
    }
    .play-core::before{
      content:"";
      width:0;
      height:0;
      border-top:15px solid transparent;
      border-bottom:15px solid transparent;
      border-left:22px solid #fff;
      transform:translateX(3px);
    }
    .video-status{
      position:absolute;
      left:18px;
      top:18px;
      display:flex;
      gap:8px;
      flex-wrap:wrap;
    }
    .status-pill{
      padding:6px 10px;
      border-radius:999px;
      background:rgba(7,17,31,.62);
      border:1px solid rgba(255,255,255,.12);
      color:#e9f7ff;
      font-size:12px;
      backdrop-filter:blur(10px);
    }
    .timeline-bar{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      height:9px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
      overflow:hidden;
    }
    .timeline-bar span{
      display:block;
      width:68%;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--cyan),var(--violet));
      box-shadow:0 0 16px rgba(34,211,238,.5);
    }
    .screen-metrics{
      margin-top:16px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .metric-mini{
      border:1px solid rgba(255,255,255,.10);
      border-radius:18px;
      padding:14px;
      background:rgba(255,255,255,.045);
    }
    .metric-mini span{
      display:block;
      color:var(--muted);
      font-size:12px;
      margin-bottom:4px;
    }
    .metric-mini strong{
      font-size:22px;
      color:#fff;
      font-variant-numeric:tabular-nums;
    }
    .metric-mini .bar{
      margin-top:10px;
      height:6px;
      border-radius:99px;
      background:rgba(255,255,255,.12);
      overflow:hidden;
    }
    .metric-mini .bar i{
      display:block;
      height:100%;
      border-radius:99px;
      background:linear-gradient(90deg,var(--primary),var(--cyan));
    }

    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-head p{max-width:650px;margin-bottom:0}
    .metrics-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .metric-card{
      position:relative;
      padding:24px;
      min-height:190px;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:var(--ease);
    }
    .metric-card:hover{
      transform:translateY(-4px);
      border-color:rgba(53,167,255,.38);
      box-shadow:var(--shadow-blue);
    }
    .metric-card::after{
      content:"";
      position:absolute;
      right:-45px;
      top:-45px;
      width:110px;
      height:110px;
      border-radius:50%;
      background:rgba(53,167,255,.13);
    }
    .metric-label{
      color:var(--muted);
      font-size:14px;
      margin-bottom:12px;
    }
    .metric-value{
      font-size:34px;
      line-height:1;
      font-weight:900;
      color:#fff;
      font-variant-numeric:tabular-nums;
      margin-bottom:14px;
    }
    .metric-value em{
      font-size:16px;
      font-style:normal;
      color:var(--cyan);
      margin-left:4px;
    }
    .trend{
      display:flex;
      align-items:end;
      gap:5px;
      height:40px;
      margin:16px 0;
    }
    .trend i{
      flex:1;
      min-width:8px;
      border-radius:999px 999px 4px 4px;
      background:linear-gradient(to top,var(--primary),var(--violet));
      opacity:.86;
    }
    .metric-note{
      color:var(--weak);
      font-size:13px;
    }

    .scene-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .scene-main,.scene-side{
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.055);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      overflow:hidden;
    }
    .scene-main{padding:30px;display:grid;grid-template-columns:1fr .82fr;gap:26px;align-items:center}
    .scene-side{display:grid;grid-template-columns:1fr;gap:0}
    .scene-art{
      min-height:310px;
      border-radius:24px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 34% 28%,rgba(34,211,238,.34),transparent 28%),
        radial-gradient(circle at 70% 72%,rgba(139,92,246,.28),transparent 30%),
        linear-gradient(145deg,rgba(53,167,255,.16),rgba(255,255,255,.035));
      border:1px solid rgba(255,255,255,.11);
    }
    .scene-art::before{
      content:"";
      position:absolute;
      inset:30px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:20px;
      box-shadow:0 0 30px rgba(53,167,255,.16);
    }
    .scene-art::after{
      content:"";
      position:absolute;
      left:42px;
      right:42px;
      bottom:48px;
      height:10px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan) 0 45%,rgba(255,255,255,.16) 45%);
      box-shadow:0 0 16px rgba(34,211,238,.38);
    }
    .scene-list{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .scene-list li{
      list-style:none;
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
      color:#d7e2ef;
    }
    .scene-list li::before{
      content:"";
      width:10px;
      height:10px;
      margin-top:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(34,211,238,.68);
      flex:0 0 10px;
    }
    .scene-card{
      padding:25px;
      border-bottom:1px solid rgba(255,255,255,.09);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .scene-card:last-child{border-bottom:0}
    .scene-card:hover{
      background:rgba(255,255,255,.055);
    }
    .scene-card .icon{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:16px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,rgba(53,167,255,.25),rgba(139,92,246,.24));
      border:1px solid rgba(255,255,255,.12);
    }

    .flow{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
      counter-reset:flow;
      position:relative;
    }
    .flow-card{
      counter-increment:flow;
      position:relative;
      padding:25px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.055);
      border:1px solid var(--border);
      min-height:230px;
      transition:var(--ease);
      overflow:hidden;
    }
    .flow-card:hover{
      transform:translateY(-4px);
      border-color:rgba(139,92,246,.42);
      box-shadow:0 18px 50px rgba(139,92,246,.12);
    }
    .flow-card::before{
      content:"0" counter(flow);
      display:inline-grid;
      place-items:center;
      width:48px;
      height:48px;
      margin-bottom:22px;
      border-radius:17px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--violet));
      box-shadow:0 0 26px rgba(53,167,255,.2);
    }
    .flow-card::after{
      content:"";
      position:absolute;
      top:48px;
      right:-40px;
      width:100px;
      height:2px;
      background:linear-gradient(90deg,rgba(34,211,238,.65),transparent);
    }
    .flow-card:last-child::after{display:none}
    .flow-card p{margin-bottom:0;font-size:15px}

    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
    }
    .compare-card{
      padding:28px;
      border-radius:var(--radius-xl);
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .compare-card.is-highlight{
      border-color:rgba(53,167,255,.38);
      background:
        linear-gradient(145deg,rgba(53,167,255,.12),rgba(139,92,246,.10)),
        rgba(255,255,255,.045);
      box-shadow:0 24px 70px rgba(53,167,255,.16);
    }
    .compare-card h3{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .compare-badge{
      display:inline-flex;
      padding:5px 9px;
      border-radius:999px;
      font-size:12px;
      color:#fff;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.12);
    }
    .compare-list{
      display:grid;
      gap:12px;
      margin:24px 0 0;
      padding:0;
    }
    .compare-list li{
      list-style:none;
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 15px;
      border-radius:15px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
      color:#d3deec;
    }
    .compare-list li::before{
      content:"";
      width:18px;
      height:18px;
      margin-top:4px;
      flex:0 0 18px;
      border-radius:50%;
      background:rgba(251,113,133,.18);
      border:1px solid rgba(251,113,133,.42);
    }
    .is-highlight .compare-list li::before{
      background:rgba(34,211,238,.18);
      border-color:rgba(34,211,238,.52);
      box-shadow:0 0 14px rgba(34,211,238,.23);
    }

    .immersive-band{
      border:1px solid var(--border);
      border-radius:32px;
      padding:34px;
      background:
        radial-gradient(circle at 15% 15%,rgba(53,167,255,.18),transparent 34%),
        radial-gradient(circle at 85% 50%,rgba(139,92,246,.16),transparent 35%),
        rgba(255,255,255,.045);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .band-grid{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:32px;
      align-items:center;
    }
    .wave-panel{
      min-height:280px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.12);
      background:linear-gradient(135deg,rgba(5,12,24,.78),rgba(16,31,56,.68));
      position:relative;
      overflow:hidden;
    }
    .wave-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        repeating-linear-gradient(90deg,transparent 0 26px,rgba(53,167,255,.13) 26px 27px),
        linear-gradient(180deg,transparent,rgba(34,211,238,.10));
    }
    .wave{
      position:absolute;
      left:26px;
      right:26px;
      top:50%;
      height:90px;
      transform:translateY(-50%);
      background:
        linear-gradient(90deg,transparent,rgba(34,211,238,.5),transparent);
      clip-path:polygon(0 58%,6% 45%,12% 62%,18% 28%,24% 70%,31% 36%,38% 60%,45% 24%,52% 72%,60% 40%,68% 55%,76% 30%,84% 66%,92% 42%,100% 58%,100% 100%,0 100%);
      opacity:.88;
      filter:drop-shadow(0 0 18px rgba(34,211,238,.45));
    }
    .band-points{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
      margin-top:22px;
    }
    .point{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.052);
      border:1px solid rgba(255,255,255,.10);
    }
    .point strong{display:block;color:#fff;margin-bottom:5px}
    .point span{font-size:14px;color:var(--muted)}

    .cta{
      padding:0 0 104px;
    }
    .cta-box{
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:30px;
      padding:36px;
      border-radius:32px;
      border:1px solid rgba(53,167,255,.26);
      background:
        linear-gradient(135deg,rgba(53,167,255,.15),rgba(139,92,246,.14)),
        rgba(255,255,255,.05);
      box-shadow:0 24px 80px rgba(53,167,255,.15);
      position:relative;
      overflow:hidden;
    }
    .cta-box::after{
      content:"";
      position:absolute;
      right:-80px;
      top:-80px;
      width:240px;
      height:240px;
      border-radius:50%;
      background:rgba(34,211,238,.14);
      filter:blur(6px);
    }
    .cta-box h2,.cta-box p,.cta-box .hero-actions{position:relative;z-index:1}
    .cta-box p{margin-bottom:0;max-width:720px}
    .cta-box .hero-actions{margin:0}

    .faq-grid{
      display:grid;
      grid-template-columns:.76fr 1.24fr;
      gap:26px;
      align-items:start;
    }
    .faq-aside{
      position:sticky;
      top:104px;
      padding:28px;
      border-radius:var(--radius-xl);
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      box-shadow:var(--shadow);
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    details{
      border:1px solid var(--border);
      border-radius:20px;
      background:rgba(255,255,255,.055);
      overflow:hidden;
      transition:var(--ease);
    }
    details[open]{
      border-color:rgba(53,167,255,.34);
      box-shadow:0 16px 42px rgba(53,167,255,.10);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:#fff;
      font-weight:800;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(53,167,255,.14);
      color:#cdeeff;
      transition:var(--ease);
      flex:0 0 28px;
    }
    details[open] summary::after{
      content:"−";
      background:rgba(139,92,246,.18);
    }
    details p{
      padding:0 22px 22px;
      margin:0;
      color:#c2ccda;
    }

    .site-footer{
      border-top:1px solid var(--line);
      background:
        radial-gradient(circle at 20% 0,rgba(53,167,255,.12),transparent 32%),
        rgba(4,10,20,.78);
      padding:58px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .75fr .65fr 1fr;
      gap:34px;
      align-items:start;
    }
    .footer-brand p{
      margin:18px 0 0;
      max-width:420px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a,
    .footer-links span{
      width:max-content;
      max-width:100%;
      transition:var(--ease);
    }
    .footer-links a:hover{
      color:#fff;
      text-decoration:underline;
      text-decoration-color:rgba(34,211,238,.72);
      text-underline-offset:5px;
    }
    .compliance{
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      padding:14px;
      border:1px solid rgba(245,158,11,.25);
      background:rgba(245,158,11,.07);
      border-radius:16px;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      margin-top:38px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.09);
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width:1100px){
      .container{width:min(100% - 48px,var(--container))}
      .hero-grid{grid-template-columns:1fr;gap:40px}
      .visual-stage{min-height:500px}
      .screen-model{transform:none}
      .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .scene-grid,.compare-wrap,.band-grid,.faq-grid{grid-template-columns:1fr}
      .scene-main{grid-template-columns:1fr}
      .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:900px){
      .menu-button{display:flex}
      .header-inner{min-height:72px}
      .nav-wrap{
        position:absolute;
        left:24px;
        right:24px;
        top:calc(100% + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:18px;
        border:1px solid var(--border);
        border-radius:24px;
        background:rgba(7,17,31,.96);
        backdrop-filter:blur(22px);
        box-shadow:var(--shadow);
      }
      .menu-check:checked ~ .nav-wrap{display:flex}
      .menu-check:checked + .menu-button span:nth-child(1){transform:translateY(7px) rotate(45deg)}
      .menu-check:checked + .menu-button span:nth-child(2){opacity:0}
      .menu-check:checked + .menu-button span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
      .nav-links{
        width:100%;
        flex-direction:column;
        align-items:stretch;
        border-radius:18px;
        background:transparent;
        border:0;
        padding:0;
      }
      .nav-links a{
        min-height:44px;
        display:flex;
        align-items:center;
        border-radius:14px;
      }
      .mega-toggle{width:100%;border-radius:14px;text-align:left}
      .mega-panel{
        position:static;
        width:100%;
        opacity:1;
        transform:none;
        pointer-events:auto;
        margin-top:10px;
        box-shadow:none;
      }
      .brand-main{max-width:230px}
    }
    @media (max-width:680px){
      .container{width:min(100% - 32px,var(--container))}
      .section{padding:68px 0}
      .section-tight{padding:54px 0}
      .hero{padding:58px 0 62px}
      .hero-actions,.cta-box .hero-actions{flex-direction:column;width:100%}
      .btn{width:100%}
      .trust-row,.metrics-grid,.screen-metrics,.flow,.band-points{grid-template-columns:1fr}
      .visual-stage{min-height:auto}
      .video-window{height:230px}
      .screen-model{border-radius:26px;padding:14px}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .scene-main,.immersive-band,.cta-box{padding:22px;border-radius:24px}
      .compare-card{padding:22px}
      .cta-box{grid-template-columns:1fr}
      .faq-aside{position:static}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
      .brand-main{max-width:190px;font-size:14px}
      .brand-sub{font-size:11px}
    }
    @media (max-width:420px){
      .container{width:min(100% - 24px,var(--container))}
      h1{font-size:32px}
      .trust-item{font-size:13px}
      .metric-card{padding:20px}
      .hero-copy .brand-kicker{display:grid}
    }

/* roulang page: category3 */
:root{
      --bg:#07111F;
      --bg-2:#091827;
      --bg-3:#0B1020;
      --panel:rgba(10,25,45,.72);
      --panel-strong:rgba(16,35,61,.86);
      --glass:rgba(255,255,255,.07);
      --line:rgba(148,163,184,.22);
      --line-soft:rgba(255,255,255,.10);
      --text:#F5F7FA;
      --muted:#A7B3C5;
      --weak:#6B7890;
      --blue:#35A7FF;
      --violet:#8B5CF6;
      --cyan:#22D3EE;
      --amber:#F59E0B;
      --green:#34D399;
      --danger:#FB7185;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-glow:0 22px 70px rgba(53,167,255,.16);
      --max:1200px;
      --nav-h:78px;
      --ease:all .25s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 4%, rgba(53,167,255,.30), transparent 32%),
        radial-gradient(circle at 86% 8%, rgba(139,92,246,.28), transparent 31%),
        radial-gradient(circle at 50% 100%, rgba(34,211,238,.10), transparent 42%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 48%,var(--bg-3));
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.85), rgba(0,0,0,.18));
    }
    body:after{
      content:"";
      position:fixed;
      width:560px;
      height:560px;
      right:-260px;
      bottom:4%;
      border-radius:50%;
      background:radial-gradient(circle,rgba(34,211,238,.16),transparent 68%);
      filter:blur(8px);
      pointer-events:none;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(53,167,255,.35);color:#fff}
    :focus-visible{outline:3px solid rgba(34,211,238,.70);outline-offset:3px;border-radius:12px}

    .container{width:min(var(--max), calc(100% - 64px));margin:0 auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 13px;
      border:1px solid rgba(53,167,255,.25);
      border-radius:999px;
      background:rgba(53,167,255,.10);
      color:#D8F2FF;
      font-size:14px;
      line-height:1.25;
      box-shadow:0 0 30px rgba(53,167,255,.08) inset;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 16px rgba(34,211,238,.85);
    }
    .section-head{
      max-width:820px;
      margin-bottom:34px;
    }
    .section-head.center{text-align:center;margin-left:auto;margin-right:auto}
    h1,h2,h3{letter-spacing:-.02em;line-height:1.18}
    h1{
      font-size:clamp(34px,5vw,58px);
      margin:18px 0 20px;
      font-weight:860;
    }
    h2{font-size:clamp(28px,3.2vw,40px);margin:14px 0 14px;font-weight:820}
    h3{font-size:22px;font-weight:780}
    p{color:var(--muted)}
    .lead{font-size:18px;line-height:1.85;color:#C5D0DF}
    .gradient-text{
      background:linear-gradient(100deg,#fff 0%,#BDEAFF 38%,#C8B9FF 76%,#fff);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(7,17,31,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line-soft);
    }
    .header-inner{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      position:relative;
      flex:0 0 auto;
      background:
        radial-gradient(circle at 35% 30%, rgba(255,255,255,.88), transparent 13%),
        linear-gradient(135deg,var(--blue),var(--violet));
      box-shadow:0 0 28px rgba(53,167,255,.32);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:16px;top:12px;
      border-left:13px solid rgba(255,255,255,.95);
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      filter:drop-shadow(0 0 8px rgba(255,255,255,.45));
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.18;min-width:0}
    .brand-main{
      font-weight:860;
      font-size:16px;
      max-width:290px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-sub{font-size:12px;color:var(--muted);margin-top:3px}
    .nav-area{
      display:flex;
      align-items:center;
      gap:18px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      padding:7px;
      border:1px solid rgba(148,163,184,.14);
      background:rgba(255,255,255,.045);
      border-radius:999px;
    }
    .nav-links a{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:#C9D4E3;
      font-size:14px;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(53,167,255,.10);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(53,167,255,.28),rgba(139,92,246,.24));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.10),0 0 24px rgba(53,167,255,.16);
    }
    .mega{
      position:relative;
    }
    .mega-button{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:11px 15px;
      border-radius:999px;
      border:1px solid rgba(34,211,238,.23);
      color:#D8F7FF;
      background:rgba(34,211,238,.08);
      transition:var(--ease);
    }
    .mega-button:hover{transform:translateY(-1px);background:rgba(34,211,238,.14)}
    .mega-panel{
      position:absolute;
      top:calc(100% + 16px);
      right:0;
      width:390px;
      padding:16px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(8,20,37,.92);
      backdrop-filter:blur(22px);
      box-shadow:var(--shadow);
      opacity:0;
      visibility:hidden;
      transform:translateY(10px);
      transition:var(--ease);
    }
    .mega:hover .mega-panel,.mega:focus-within .mega-panel{
      opacity:1;visibility:visible;transform:translateY(0);
    }
    .mega-card{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      padding:13px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.045);
      transition:var(--ease);
    }
    .mega-card + .mega-card{margin-top:10px}
    .mega-card:hover{background:rgba(53,167,255,.10);border-color:rgba(53,167,255,.28);transform:translateX(2px)}
    .mega-icon{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(53,167,255,.24),rgba(139,92,246,.22));
      color:#fff;
      font-weight:900;
    }
    .mega-card strong{display:block;font-size:15px;margin-bottom:2px}
    .mega-card span{font-size:13px;color:var(--muted);line-height:1.55}
    .menu-toggle{display:none}
    .hamburger{
      display:none;
      width:44px;height:44px;border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
      align-items:center;justify-content:center;
    }
    .hamburger span,.hamburger span:before,.hamburger span:after{
      content:"";
      display:block;
      width:20px;height:2px;border-radius:4px;
      background:#fff;
      position:relative;
      transition:var(--ease);
    }
    .hamburger span:before{position:absolute;top:-7px}
    .hamburger span:after{position:absolute;top:7px}

    .hero{
      padding:74px 0 48px;
      position:relative;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(360px,.88fr);
      gap:44px;
      align-items:center;
    }
    .hero-actions{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-top:30px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      font-weight:760;
      transition:var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--blue),var(--violet));
      box-shadow:0 14px 36px rgba(53,167,255,.22);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 46px rgba(139,92,246,.30);
      filter:saturate(1.08);
    }
    .btn-secondary{
      color:#D9F7FF;
      border-color:rgba(34,211,238,.28);
      background:rgba(255,255,255,.055);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:rgba(34,211,238,.11);
      border-color:rgba(34,211,238,.50);
    }
    .trust-row{
      margin-top:26px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .chip,.tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.11);
      background:rgba(255,255,255,.055);
      color:#C7D4E6;
      font-size:13px;
    }
    .tag.blue{border-color:rgba(53,167,255,.25);color:#D7F0FF;background:rgba(53,167,255,.09)}
    .tag.violet{border-color:rgba(139,92,246,.25);color:#E5DAFF;background:rgba(139,92,246,.10)}
    .tag.amber{border-color:rgba(245,158,11,.32);color:#FFE5B3;background:rgba(245,158,11,.09)}

    .solution-panel{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(145deg,rgba(255,255,255,.10),rgba(255,255,255,.035)),
        rgba(10,25,45,.72);
      box-shadow:var(--shadow);
      overflow:hidden;
      padding:24px;
      backdrop-filter:blur(18px);
      transform:perspective(1000px) rotateY(-4deg) rotateX(2deg);
    }
    .solution-panel:before{
      content:"";
      position:absolute;
      inset:-80px -80px auto auto;
      width:230px;height:230px;border-radius:50%;
      background:radial-gradient(circle,rgba(53,167,255,.30),transparent 70%);
      filter:blur(5px);
    }
    .screen{
      min-height:290px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 25% 18%,rgba(53,167,255,.38),transparent 32%),
        radial-gradient(circle at 80% 70%,rgba(139,92,246,.30),transparent 35%),
        linear-gradient(145deg,rgba(7,17,31,.96),rgba(13,28,51,.92));
      position:relative;
      overflow:hidden;
    }
    .screen:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(110deg,transparent 0 35%,rgba(255,255,255,.10) 45%,transparent 56%),
        repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 18px);
      opacity:.72;
    }
    .play-orbit{
      position:absolute;
      left:50%;top:44%;
      transform:translate(-50%,-50%);
      width:94px;height:94px;border-radius:50%;
      display:grid;place-items:center;
      border:1px solid rgba(34,211,238,.35);
      background:rgba(255,255,255,.10);
      box-shadow:0 0 46px rgba(34,211,238,.28);
    }
    .play-orbit:after{
      content:"";
      border-left:24px solid #fff;
      border-top:15px solid transparent;
      border-bottom:15px solid transparent;
      margin-left:6px;
    }
    .panel-labels{
      position:absolute;
      left:18px;right:18px;bottom:18px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .panel-metric{
      padding:12px;
      border-radius:16px;
      background:rgba(7,17,31,.68);
      border:1px solid rgba(255,255,255,.10);
    }
    .panel-metric b{display:block;font-size:20px;color:#fff;font-variant-numeric:tabular-nums}
    .panel-metric span{font-size:12px;color:var(--muted)}
    .status-bar{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-top:16px;
    }
    .status-dot{
      display:inline-flex;align-items:center;gap:8px;
      color:#DDF8FF;font-size:13px;
    }
    .status-dot:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 14px rgba(52,211,153,.75)}
    .wave{
      flex:1;
      height:34px;
      border-radius:999px;
      background:
        linear-gradient(90deg,rgba(53,167,255,.20),rgba(139,92,246,.18)),
        repeating-linear-gradient(90deg,transparent 0 9px,rgba(255,255,255,.16) 9px 11px,transparent 11px 18px);
      opacity:.9;
    }

    .process-wrap{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      position:relative;
    }
    .process-card{
      position:relative;
      padding:24px;
      min-height:210px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:var(--glass);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
      transition:var(--ease);
      overflow:hidden;
    }
    .process-card:hover{transform:translateY(-5px);border-color:rgba(53,167,255,.40);box-shadow:var(--shadow-glow)}
    .step-num{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      font-weight:900;
      color:#fff;
      background:linear-gradient(135deg,var(--blue),var(--violet));
      box-shadow:0 0 25px rgba(53,167,255,.20);
      margin-bottom:18px;
    }
    .process-card h3{margin-bottom:10px}
    .process-card p{font-size:15px}
    .process-card:after{
      content:"";
      position:absolute;
      right:-40px;bottom:-40px;
      width:120px;height:120px;border-radius:50%;
      background:radial-gradient(circle,rgba(34,211,238,.12),transparent 68%);
    }

    .module-grid{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .module-card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      box-shadow:var(--shadow);
      padding:26px;
      min-height:230px;
      backdrop-filter:blur(18px);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .module-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.36);
      background:linear-gradient(145deg,rgba(53,167,255,.11),rgba(139,92,246,.055));
      box-shadow:var(--shadow-glow);
    }
    .module-card.large{grid-column:span 6}
    .module-card.medium{grid-column:span 4}
    .module-card.wide{grid-column:span 8}
    .module-icon{
      width:48px;height:48px;border-radius:18px;
      display:grid;place-items:center;
      margin-bottom:18px;
      background:linear-gradient(135deg,rgba(53,167,255,.26),rgba(139,92,246,.24));
      color:#fff;
      font-weight:900;
      border:1px solid rgba(255,255,255,.10);
    }
    .module-card h3{margin-bottom:10px}
    .module-card p{font-size:15px}
    .module-tags{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}

    .result-grid{
      display:grid;
      grid-template-columns:.88fr 1.12fr;
      gap:24px;
      align-items:stretch;
    }
    .score-card,.compare-card,.form-card,.promise-card,.faq-card{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.065);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
    }
    .score-card{
      padding:30px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:430px;
      background:
        radial-gradient(circle at 20% 0,rgba(53,167,255,.18),transparent 34%),
        rgba(255,255,255,.055);
    }
    .score-number{
      font-size:clamp(48px,7vw,82px);
      line-height:1;
      font-weight:900;
      letter-spacing:-.06em;
      font-variant-numeric:tabular-nums;
      background:linear-gradient(135deg,#fff,var(--cyan),var(--violet));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
      margin:24px 0 12px;
    }
    .metric-list{display:grid;gap:12px}
    .metric-item{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:13px 0;
      border-bottom:1px solid rgba(255,255,255,.09);
      color:#D8E3F0;
    }
    .metric-item:last-child{border-bottom:0}
    .metric-item b{color:#fff;font-variant-numeric:tabular-nums}
    .compare-card{padding:18px}
    .compare-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      padding:14px;
      border-radius:20px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(255,255,255,.075);
      margin-bottom:12px;
    }
    .compare-row:last-child{margin-bottom:0}
    .compare-col{
      padding:14px;
      border-radius:16px;
      min-height:112px;
    }
    .compare-col.old{background:rgba(251,113,133,.065);border:1px solid rgba(251,113,133,.16)}
    .compare-col.new{background:rgba(34,211,238,.075);border:1px solid rgba(34,211,238,.18)}
    .compare-col strong{display:block;margin-bottom:6px}
    .compare-col p{font-size:14px;line-height:1.65}

    .consult-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:start;
    }
    .form-card{padding:30px}
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
      margin-top:24px;
    }
    .field.full{grid-column:1/-1}
    label{
      display:block;
      font-size:14px;
      color:#DCE7F5;
      margin-bottom:8px;
      font-weight:650;
    }
    input,select,textarea{
      width:100%;
      border:1px solid rgba(148,163,184,.25);
      border-radius:16px;
      background:rgba(7,17,31,.58);
      color:#fff;
      padding:13px 14px;
      transition:var(--ease);
      outline:none;
    }
    textarea{min-height:128px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#74829A}
    input:focus,select:focus,textarea:focus{
      border-color:rgba(34,211,238,.65);
      box-shadow:0 0 0 4px rgba(34,211,238,.10);
      background:rgba(7,17,31,.80);
    }
    .privacy{
      margin:16px 0 20px;
      font-size:13px;
      color:var(--weak);
    }
    .promise-card{
      padding:30px;
      position:relative;
      overflow:hidden;
    }
    .promise-card:before{
      content:"";
      position:absolute;
      top:-130px;right:-140px;
      width:290px;height:290px;border-radius:50%;
      background:radial-gradient(circle,rgba(139,92,246,.22),transparent 70%);
    }
    .promise-list{display:grid;gap:14px;margin-top:24px}
    .promise-item{
      display:grid;
      grid-template-columns:34px 1fr;
      gap:12px;
      align-items:start;
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.045);
    }
    .check{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      color:#fff;
      background:rgba(52,211,153,.16);
      border:1px solid rgba(52,211,153,.30);
    }
    .promise-item strong{display:block;margin-bottom:2px}
    .promise-item span{font-size:14px;color:var(--muted);line-height:1.6}

    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    details.faq-card{
      padding:0;
      overflow:hidden;
      transition:var(--ease);
    }
    details.faq-card:hover{border-color:rgba(53,167,255,.32)}
    summary{
      list-style:none;
      cursor:pointer;
      padding:22px 24px;
      font-weight:760;
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:center;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(53,167,255,.12);
      color:#CFEFFF;
      flex:0 0 auto;
    }
    details[open] summary:after{content:"−";background:rgba(139,92,246,.15)}
    details .answer{
      padding:0 24px 22px;
      color:var(--muted);
      font-size:15px;
    }

    .cta-band{
      border:1px solid rgba(53,167,255,.24);
      border-radius:32px;
      padding:34px;
      background:
        radial-gradient(circle at 12% 20%,rgba(53,167,255,.22),transparent 36%),
        radial-gradient(circle at 88% 30%,rgba(139,92,246,.20),transparent 35%),
        rgba(255,255,255,.06);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      overflow:hidden;
      position:relative;
    }
    .cta-band p{max-width:760px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

    .site-footer{
      margin-top:40px;
      padding:58px 0 26px;
      border-top:1px solid var(--line-soft);
      background:
        radial-gradient(circle at 20% 0,rgba(53,167,255,.12),transparent 30%),
        rgba(3,9,18,.55);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr .75fr .65fr 1fr;
      gap:30px;
      align-items:start;
    }
    .footer-brand p{margin-top:16px;font-size:14px;max-width:440px}
    .footer-title{
      font-weight:800;
      margin-bottom:14px;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a,.footer-links span{
      width:max-content;
      max-width:100%;
      transition:var(--ease);
    }
    .footer-links a:hover{
      color:#fff;
      text-decoration:underline;
      text-decoration-color:var(--cyan);
      text-underline-offset:5px;
    }
    .compliance{
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(245,158,11,.22);
      background:rgba(245,158,11,.07);
    }
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width:1024px){
      .container{width:min(var(--max), calc(100% - 48px))}
      .hero-grid,.result-grid,.consult-layout{grid-template-columns:1fr}
      .solution-panel{transform:none}
      .process-wrap{grid-template-columns:repeat(2,1fr)}
      .module-card.large,.module-card.medium,.module-card.wide{grid-column:span 6}
      .footer-grid{grid-template-columns:1fr 1fr}
      .nav-links a{padding:10px 11px}
      .mega{display:none}
    }
    @media (max-width:820px){
      .header-inner{height:auto;min-height:72px;align-items:center;flex-wrap:wrap;padding:14px 0}
      .hamburger{display:flex}
      .nav-area{
        width:100%;
        display:none;
        padding:10px 0 4px;
      }
      .menu-toggle:checked ~ .nav-area{display:block}
      .nav-links{
        width:100%;
        border-radius:22px;
        display:grid;
        grid-template-columns:1fr;
        gap:4px;
        padding:10px;
      }
      .nav-links a{
        min-height:44px;
        display:flex;
        align-items:center;
        border-radius:16px;
      }
      .brand-main{max-width:230px}
      .section{padding:72px 0}
      .module-grid{grid-template-columns:1fr}
      .module-card.large,.module-card.medium,.module-card.wide{grid-column:auto}
      .faq-grid{grid-template-columns:1fr}
      .cta-band{grid-template-columns:1fr}
      .cta-actions .btn,.hero-actions .btn{width:100%}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
    }
    @media (max-width:576px){
      .container{width:calc(100% - 32px)}
      .hero{padding-top:42px}
      .lead{font-size:16px}
      .process-wrap{grid-template-columns:1fr}
      .compare-row{grid-template-columns:1fr}
      .panel-labels{grid-template-columns:1fr}
      .solution-panel,.form-card,.promise-card,.score-card,.cta-band{padding:22px;border-radius:24px}
      .screen{min-height:330px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
      .brand-sub{display:none}
      .brand-main{max-width:190px}
    }