/* roulang page: index */
:root{
      --bg-0:#04101d;
      --bg-1:#07111f;
      --bg-2:#0a1930;
      --bg-3:#102a4c;
      --panel:rgba(9, 25, 48, .62);
      --panel-strong:rgba(12, 30, 57, .86);
      --line:rgba(148, 216, 255, .18);
      --line-strong:rgba(102, 209, 255, .36);
      --text:#f4f8ff;
      --text-2:#b8c7da;
      --text-3:#7f91aa;
      --accent:#21d4fd;
      --accent-2:#38bdf8;
      --accent-3:#7c3aed;
      --glow:rgba(33, 212, 253, .32);
      --glow-2:rgba(124, 58, 237, .28);
      --shadow:0 28px 80px rgba(1, 12, 23, .52);
      --r-1:16px;
      --r-2:22px;
      --r-3:28px;
      --space-1:12px;
      --space-2:18px;
      --space-3:24px;
      --space-4:32px;
      --space-5:44px;
      --space-6:64px;
      --space-7:92px;
      --container:1240px;
    }

    *{box-sizing:border-box}
    html,body{margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      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% 12%, rgba(33,212,253,.12), transparent 26%),
        radial-gradient(circle at 88% 14%, rgba(124,58,237,.12), transparent 24%),
        radial-gradient(circle at 50% 86%, rgba(56,189,248,.08), transparent 28%),
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 40%, #050d18 100%);
      min-height:100vh;
      overflow-x:hidden;
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      position:relative;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(148,216,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,216,255,.05) 1px, transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.7), rgba(0,0,0,.18) 55%, rgba(0,0,0,0));
      opacity:.55;
      z-index:0;
    }
    body::after{
      content:"";
      position:fixed;
      inset:-20%;
      pointer-events:none;
      background:
        radial-gradient(circle at 30% 20%, rgba(33,212,253,.06), transparent 20%),
        radial-gradient(circle at 70% 30%, rgba(124,58,237,.05), transparent 20%),
        radial-gradient(circle at 50% 70%, rgba(56,189,248,.04), transparent 22%);
      filter:blur(40px);
      z-index:0;
      animation: drift 18s ease-in-out infinite alternate;
    }
    @keyframes drift{
      0%{transform:translate3d(0,0,0) scale(1)}
      100%{transform:translate3d(2.5%, -1.5%, 0) scale(1.04)}
    }
    a{color:inherit;text-decoration:none;transition:all .24s ease}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(33,212,253,.24);color:var(--text)}
    .site-shell{position:relative;z-index:1}
    .container-xx{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .section{
      padding:var(--space-7) 0;
      position:relative;
    }
    .section.compact{
      padding:var(--space-6) 0;
    }
    .section-title{
      font-size:clamp(28px, 3vw, 46px);
      line-height:1.15;
      margin:0 0 14px;
      font-weight:800;
      letter-spacing:-.03em;
    }
    .section-lead{
      color:var(--text-2);
      font-size:clamp(16px, 1.35vw, 18px);
      max-width:760px;
      margin:0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-size:13px;
      letter-spacing:.14em;
      text-transform:none;
      color:rgba(220, 251, 255, .88);
      background:linear-gradient(90deg, rgba(33,212,253,.18), rgba(124,58,237,.14));
      border:1px solid rgba(148,216,255,.2);
      padding:8px 14px;
      border-radius:999px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
      backdrop-filter:blur(10px);
    }
    .eyebrow .dot{
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(180deg, var(--accent), #c4fbff);
      box-shadow:0 0 0 6px rgba(33,212,253,.12), 0 0 24px rgba(33,212,253,.5);
    }

    .site-header{
      position:fixed;
      top:0;
      left:0;
      right:0;
      z-index:60;
      transition:all .28s ease;
      padding-top:12px;
    }
    .site-header.is-scrolled{
      padding-top:0;
      background:rgba(5, 13, 24, .72);
      backdrop-filter:blur(18px) saturate(140%);
      box-shadow:0 10px 34px rgba(1,12,23,.36);
      border-bottom:1px solid rgba(148,216,255,.12);
    }
    .header-inner{
      width:min(var(--container), calc(100% - 24px));
      margin:0 auto;
      padding:14px 18px;
      border:1px solid rgba(148,216,255,.18);
      border-radius:24px;
      background:rgba(8, 20, 38, .45);
      backdrop-filter:blur(18px) saturate(140%);
      box-shadow:0 18px 54px rgba(2, 10, 22, .32);
      display:flex;
      align-items:center;
      gap:18px;
      transition:all .28s ease;
    }
    .site-header.is-scrolled .header-inner{
      width:min(var(--container), 100%);
      border-radius:0;
      border-left:none;
      border-right:none;
      padding:13px 22px;
      background:rgba(7, 17, 31, .92);
      box-shadow:none;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      flex:0 0 auto;
   display:flex;
      align-items:center;
      gap:12px;
      color:var(--text);
      font-size:15px;
      font-weight:600;
      padding:10px 14px;
      border-radius:14px;
      border:1px solid transparent;
      position:relative;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(33,212,253,.2), rgba(124,58,237,.24));
      border:1px solid rgba(148,216,255,.25);
      display:grid;
      place-items:center;
      color:#dbfbff;
      box-shadow:0 0 0 6px rgba(33,212,253,.08), inset 0 1px 0 rgba(255,255,255,.08);
      flex:0 0 auto;
    }
    .brand-mark svg{width:20px;height:20px;filter:drop-shadow(0 0 10px rgba(33,212,253,.5))}
    .brand-text{
      display:flex;
      flex-direction:column;
      min-width:0;
      line-height:1.15;
    }
    .brand-text strong{
      font-size:16px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      color:var(--text-3);
      font-size:12px;
      margin-top:4px;
    }

    .nav-wrap{
      display:flex;
      align-items:center;
      gap:8px;
      margin-left:auto;
      min-width:0;
      flex:1;
    }
    .nav-list{
      list-style:none;
      display:flex;
      align-items:center;
      gap:6px;
      margin:0;
      padding:0;
      flex-wrap:wrap;
    }
    .nav-item{margin:0}
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--text-2);
      padding:11px 14px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:14px;
      line-height:1;
      position:relative;
      white-space:nowrap;
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:6px;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(33,212,253,.65), transparent);
      opacity:0;
      transform:scaleX(.5);
      transition:all .24s ease;
    }
    .nav-link:hover,
    .nav-link:focus{
      color:var(--text);
      border-color:rgba(148,216,255,.18);
      background:rgba(255,255,255,.04);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .nav-link:hover::after,
    .nav-link:focus::after,
    .nav-link.active::after{
      opacity:1;
      transform:scaleX(1);
    }
    .nav-link.active{
      color:#e9fdff;
      background:linear-gradient(135deg, rgba(33,212,253,.14), rgba(124,58,237,.12));
      border-color:rgba(120, 220, 255, .22);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
      margin-left:auto;
    }
    .search-box{
      position:relative;
      min-width:220px;
      max-width:260px;
      display:none;
    }
    .search-box input{
      width:100%;
      height:42px;
      border-radius:999px;
      border:1px solid rgba(148,216,255,.18);
      background:rgba(255,255,255,.04);
      color:var(--text);
      padding:0 16px 0 42px;
      outline:none;
      transition:all .24s ease;
      backdrop-filter:blur(12px);
    }
    .search-box input::placeholder{color:rgba(183, 200, 220, .72)}
    .search-box input:focus{
      border-color:rgba(33,212,253,.46);
      box-shadow:0 0 0 4px rgba(33,212,253,.12);
      background:rgba(255,255,255,.055);
    }
    .search-box .icon{
      position:absolute;
      left:14px;
      top:50%;
      transform:translateY(-50%);
      width:16px;
      height:16px;
      color:rgba(220,251,255,.82);
      pointer-events:none;
    }
    .button{
      border:none;
      outline:none;
      transition:all .24s ease;
      cursor:pointer;
      font-weight:700;
      letter-spacing:.01em;
    }
    .button.primary{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:#02131c;
      background:linear-gradient(135deg, #7cf0ff 0%, var(--accent) 38%, #58bfff 100%);
      border-radius:999px;
      padding:13px 18px;
      box-shadow:0 12px 30px rgba(33,212,253,.26), inset 0 1px 0 rgba(255,255,255,.35);
    }
    .button.primary:hover,
    .button.primary:focus{
      transform:translateY(-2px);
      box-shadow:0 16px 34px rgba(33,212,253,.34), 0 0 0 4px rgba(33,212,253,.12);
      color:#001017;
    }
    .button.secondary{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--text);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,216,255,.18);
      border-radius:999px;
      padding:12px 18px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .button.secondary:hover,
    .button.secondary:focus{
      transform:translateY(-2px);
      color:#f7feff;
      border-color:rgba(33,212,253,.38);
      background:rgba(33,212,253,.08);
      box-shadow:0 10px 28px rgba(33,212,253,.12);
    }
    .button:focus,
    .nav-link:focus,
    .tag:focus,
    .faq-button:focus,
    input:focus{
      outline:none;
    }
    .button:focus-visible,
    .nav-link:focus-visible,
    .tag:focus-visible,
    .faq-button:focus-visible{
      box-shadow:0 0 0 4px rgba(33,212,253,.18), 0 0 0 1px rgba(33,212,253,.65) inset;
    }

    .menu-toggle{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(148,216,255,.18);
      color:var(--text);
      padding:0;
      margin-left:6px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .menu-toggle:hover{background:rgba(33,212,253,.08);border-color:rgba(33,212,253,.28)}
    .menu-toggle svg{width:20px;height:20px}
    .mobile-panel{
      display:none;
      width:100%;
      margin-top:14px;
      padding:14px;
      border-radius:22px;
      border:1px solid rgba(148,216,255,.16);
      background:rgba(6, 16, 30, .92);
      backdrop-filter:blur(18px);
      box-shadow:0 20px 45px rgba(2,10,23,.35);
    }
    .mobile-panel.open{display:block}
    .mobile-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:8px;
    }
    .mobile-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 14px;
      border-radius:16px;
      border:1px solid rgba(148,216,255,.12);
      background:rgba(255,255,255,.03);
      color:var(--text-2);
      min-height:48px;
    }
    .mobile-links a.active,
    .mobile-links a:hover{
      color:var(--text);
      border-color:rgba(33,212,253,.28);
      background:rgba(33,212,253,.08);
    }

    .hero{
      position:relative;
      padding-top:118px;
      min-height:760px;
      display:flex;
      align-items:center;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 24%, rgba(33,212,253,.14), transparent 18%),
        radial-gradient(circle at 84% 20%, rgba(124,58,237,.16), transparent 20%),
        radial-gradient(circle at 58% 78%, rgba(56,189,248,.08), transparent 18%);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:40px;
      align-items:center;
      padding:40px 0 24px;
    }
    .hero h1{
      font-size:clamp(34px, 5vw, 68px);
      line-height:1.08;
      letter-spacing:-.04em;
      margin:18px 0 18px;
      font-weight:800;
      max-width:11.2em;
    }
    .hero h1 .accent{
      background:linear-gradient(90deg, #e8feff 0%, #97f0ff 35%, #8cc7ff 70%, #c6b6ff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero p{
      color:var(--text-2);
      font-size:18px;
      max-width:40rem;
      margin:0 0 24px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:24px;
    }
    .trust-row{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:12px;
      max-width:720px;
    }
    .trust-pill{
      padding:14px 16px;
      border-radius:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      border:1px solid rgba(148,216,255,.14);
      color:var(--text-2);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .trust-pill strong{
      display:block;
      color:var(--text);
      margin-bottom:3px;
      font-size:15px;
    }

    .player-card{
      position:relative;
      border-radius:30px;
      padding:20px;
      background:linear-gradient(180deg, rgba(15, 35, 65, .72), rgba(8, 19, 37, .86));
      border:1px solid rgba(148,216,255,.18);
      box-shadow:var(--shadow);
      overflow:hidden;
      backdrop-filter:blur(18px) saturate(130%);
      transform:translateZ(0);
    }
    .player-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 50% 20%, rgba(33,212,253,.16), transparent 32%),
        radial-gradient(circle at 80% 10%, rgba(124,58,237,.16), transparent 24%);
      pointer-events:none;
    }
    .player-top{
      display:flex;
      align-items:center;
      gap:8px;
      margin-bottom:14px;
      position:relative;
      z-index:1;
    }
    .window-dot{
      width:10px;height:10px;border-radius:50%;
      background:rgba(255,255,255,.18);
      box-shadow:0 0 12px rgba(255,255,255,.12);
    }
    .window-dot:nth-child(1){background:#ff7676}
    .window-dot:nth-child(2){background:#ffce5e}
    .window-dot:nth-child(3){background:#52e29f}
    .screen{
      position:relative;
      z-index:1;
      min-height:360px;
      border-radius:24px;
      border:1px solid rgba(148,216,255,.18);
      background:
        linear-gradient(145deg, rgba(8,19,37,.88), rgba(15,35,65,.78)),
        radial-gradient(circle at 50% 50%, rgba(33,212,253,.06), transparent 44%);
      padding:24px;
      overflow:hidden;
    }
    .screen::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 0%, rgba(255,255,255,.04) 50%, transparent 100%);
      opacity:.28;
      pointer-events:none;
    }
    .mock-video{
      position:absolute;
      inset:20px 20px 92px;
      border-radius:20px;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(33,212,253,.18), rgba(124,58,237,.12)),
        linear-gradient(180deg, rgba(8,19,37,.2), rgba(8,19,37,.86));
      border:1px solid rgba(148,216,255,.12);
    }
    .mock-video::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.22), transparent 16%),
        radial-gradient(circle at 68% 42%, rgba(255,255,255,.08), transparent 18%),
        linear-gradient(120deg, rgba(255,255,255,.05), transparent 18%, transparent 82%, rgba(255,255,255,.04));
      opacity:.75;
    }
    .play-button{
      position:absolute;
      left:50%;
      top:50%;
      transform:translate(-50%, -50%);
      width:84px;
      height:84px;
      border-radius:50%;
      background:rgba(8,19,37,.58);
      border:1px solid rgba(220,251,255,.26);
      display:grid;
      place-items:center;
      box-shadow:0 0 0 10px rgba(33,212,253,.12), 0 0 30px rgba(33,212,253,.26);
      z-index:2;
    }
    .play-button svg{width:28px;height:28px;margin-left:4px;color:#f2feff}
    .player-tags{
      position:absolute;
      inset:auto 20px 20px;
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      z-index:2;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      font-size:12px;
      color:#e7fbff;
      border:1px solid rgba(148,216,255,.16);
      background:rgba(255,255,255,.05);
      backdrop-filter:blur(10px);
    }
    .tag.accent{
      background:linear-gradient(135deg, rgba(33,212,253,.18), rgba(124,58,237,.16));
      border-color:rgba(33,212,253,.24);
    }
    .player-side{
      margin-top:16px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .mini-panel{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,216,255,.14);
    }
    .mini-panel strong{display:block;font-size:14px;margin-bottom:6px}
    .mini-panel span{color:var(--text-3);font-size:13px}
    .progress{
      position:relative;
      z-index:1;
      margin-top:16px;
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(148,216,255,.12);
      overflow:hidden;
    }
    .progress::before{
      content:"";
      position:absolute;
      inset:0 auto 0 0;
      width:66%;
      background:linear-gradient(90deg, var(--accent), #7ce9ff 48%, #b4a1ff 100%);
      box-shadow:0 0 18px rgba(33,212,253,.34);
    }
    .player-meta{
      display:flex;
      justify-content:space-between;
      gap:12px;
      margin-top:12px;
      color:var(--text-3);
      font-size:13px;
      position:relative;
      z-index:1;
    }

    .glass-panel{
      background:var(--panel);
      border:1px solid rgba(148,216,255,.16);
      border-radius:28px;
      padding:28px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px) saturate(130%);
    }
    .problem-path{
      display:grid;
      gap:16px;
      margin-top:34px;
    }
    .problem-node{
      position:relative;
      padding:20px 22px 20px 24px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
      border:1px solid rgba(148,216,255,.14);
      overflow:hidden;
    }
    .problem-node::before{
      content:"";
      position:absolute;
      left:0;
      top:0;
      bottom:0;
      width:3px;
      background:linear-gradient(180deg, var(--accent), var(--accent-3));
      box-shadow:0 0 20px rgba(33,212,253,.34);
    }
    .problem-node h3{
      margin:0 0 6px;
      font-size:20px;
    }
    .problem-node p{
      margin:0;
      color:var(--text-2);
      max-width:760px;
      font-size:16px;
    }
    .solution-grid{
      display:grid;
      grid-template-columns: .9fr 1.1fr;
      gap:24px;
      align-items:start;
      margin-top:32px;
    }
    .step-list{
      display:grid;
      gap:14px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .step-item{
      padding:18px 18px 18px 58px;
      border-radius:20px;
      border:1px solid rgba(148,216,255,.14);
      background:rgba(255,255,255,.035);
      position:relative;
      overflow:hidden;
    }
    .step-item::before{
      content:attr(data-step);
      position:absolute;
      left:16px;
      top:16px;
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#07111f;
      font-size:13px;
      font-weight:800;
      background:linear-gradient(135deg, #8af3ff, #56c7ff);
      box-shadow:0 0 0 6px rgba(33,212,253,.12);
    }
    .step-item strong{
      display:block;
      font-size:18px;
      margin-bottom:6px;
    }
    .step-item span{
      color:var(--text-2);
      font-size:15px;
    }
    .solution-visual{
      display:grid;
      gap:12px;
      grid-template-columns:1fr 1fr;
    }
    .overview-card{
      border-radius:24px;
      padding:18px;
      border:1px solid rgba(148,216,255,.14);
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      min-height:150px;
    }
    .overview-card.tall{
      grid-row:span 2;
      min-height:312px;
      background:
        radial-gradient(circle at 30% 20%, rgba(33,212,253,.12), transparent 26%),
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.022));
    }
    .overview-card h3,
    .overview-card h4{
      margin:0 0 8px;
      font-size:18px;
    }
    .overview-card p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
    }
    .overview-flag{
      display:inline-flex;
      margin-top:14px;
      padding:6px 10px;
      font-size:12px;
      border-radius:999px;
      border:1px solid rgba(148,216,255,.14);
      color:#dffcff;
      background:rgba(33,212,253,.08);
    }

    .matrix-wrap{
      margin-top:28px;
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:18px;
    }
    .content-feature{
      position:relative;
      min-height:420px;
      border-radius:30px;
      padding:26px;
      border:1px solid rgba(148,216,255,.16);
      background:
        linear-gradient(135deg, rgba(33,212,253,.08), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      overflow:hidden;
    }
    .content-feature::after{
      content:"";
      position:absolute;
      right:-10%;
      top:-10%;
      width:280px;
      height:280px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(124,58,237,.18), transparent 68%);
      filter:blur(8px);
      pointer-events:none;
    }
    .feature-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-start;
      gap:18px;
      margin-bottom:18px;
      position:relative;
      z-index:1;
    }
    .feature-head h3{
      margin:0 0 8px;
      font-size:24px;
      line-height:1.25;
    }
    .feature-head p{
      margin:0;
      color:var(--text-2);
      max-width:34rem;
    }
    .feature-stat{
      text-align:right;
      color:var(--text-3);
      font-size:13px;
      flex:0 0 auto;
    }
    .feature-stat strong{
      display:block;
      color:var(--text);
      font-size:28px;
      line-height:1.1;
      margin-bottom:4px;
    }
    .feature-tags{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      margin:16px 0 22px;
      position:relative;
      z-index:1;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:14px;
      position:relative;
      z-index:1;
    }
    .feature-mini{
      padding:16px;
      border-radius:20px;
      border:1px solid rgba(148,216,255,.14);
      background:rgba(255,255,255,.04);
    }
    .feature-mini h4{
      margin:0 0 8px;
      font-size:16px;
    }
    .feature-mini p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
    }
    .feature-side{
      display:grid;
      gap:14px;
    }
    .feature-side-card{
      padding:18px;
      border-radius:24px;
      border:1px solid rgba(148,216,255,.14);
      background:rgba(255,255,255,.035);
    }
    .feature-side-card strong{
      display:block;
      font-size:18px;
      margin-bottom:8px;
    }
    .feature-side-card p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
    }

    .results-band{
      margin-top:28px;
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:14px;
    }
    .result-card{
      padding:18px;
      border-radius:22px;
      border:1px solid rgba(148,216,255,.14);
      background:
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .result-card .num{
      font-size:34px;
      font-weight:800;
      line-height:1;
      background:linear-gradient(90deg, #dffcff, #8ee6ff 55%, #bca9ff);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
      margin-bottom:10px;
    }
    .result-card p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
    }

    .preview-grid{
      margin-top:30px;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:18px;
    }
    .preview-main,
    .preview-list{
      border-radius:28px;
      border:1px solid rgba(148,216,255,.14);
      background:rgba(255,255,255,.035);
      padding:22px;
    }
    .preview-main h3,
    .preview-list h3{
      margin:0 0 8px;
      font-size:24px;
    }
    .preview-main p,
    .preview-list p{
      margin:0;
      color:var(--text-2);
    }
    .card-row{
      display:grid;
      gap:14px;
      margin-top:18px;
    }
    .content-card{
      display:grid;
      grid-template-columns:1fr auto;
      gap:14px;
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      border:1px solid rgba(148,216,255,.14);
      transition:all .24s ease;
    }
    .content-card:hover{
      transform:translateY(-3px);
      border-color:rgba(33,212,253,.28);
      box-shadow:0 14px 34px rgba(10,24,45,.28);
    }
    .content-card h4{
      margin:0 0 8px;
      font-size:18px;
    }
    .content-card p{
      margin:0 0 10px;
      color:var(--text-2);
      font-size:14px;
    }
    .content-card .meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .meta .tag{padding:6px 10px;font-size:12px}
    .content-card .action{
      display:flex;
      align-items:flex-end;
    }
    .ghost-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#ddfbff;
      font-size:14px;
      font-weight:700;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(148,216,255,.14);
      background:rgba(33,212,253,.06);
    }
    .ghost-link:hover{background:rgba(33,212,253,.12);border-color:rgba(33,212,253,.28)}

    .feedback-grid{
      margin-top:28px;
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:14px;
    }
    .quote-card{
      padding:20px;
      border-radius:24px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      border:1px solid rgba(148,216,255,.14);
      position:relative;
      overflow:hidden;
    }
    .quote-card::before{
      content:"";
      position:absolute;
      inset:auto auto 0 0;
      width:100%;
      height:3px;
      background:linear-gradient(90deg, var(--accent), rgba(124,58,237,.9));
      opacity:.8;
    }
    .quote-card p{
      margin:0 0 18px;
      color:var(--text-2);
      font-size:15px;
    }
    .quote-author{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .avatar{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:800;
      color:#06101b;
      background:linear-gradient(135deg, #8af3ff, #b7c0ff);
      box-shadow:0 0 0 6px rgba(33,212,253,.1);
      flex:0 0 auto;
    }
    .quote-author strong{
      display:block;
      font-size:15px;
    }
    .quote-author span{
      display:block;
      color:var(--text-3);
      font-size:13px;
    }

    .faq-grid{
      margin-top:28px;
      display:grid;
      gap:14px;
    }
    .faq-item{
      border-radius:22px;
      border:1px solid rgba(148,216,255,.14);
      background:rgba(255,255,255,.035);
      overflow:hidden;
    }
    .faq-button{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      background:transparent;
      color:var(--text);
      border:none;
      padding:20px 22px;
      text-align:left;
      cursor:pointer;
    }
    .faq-button span{
      font-size:18px;
      font-weight:700;
      line-height:1.35;
    }
    .faq-button i{
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      font-style:normal;
      background:rgba(33,212,253,.08);
      border:1px solid rgba(148,216,255,.14);
      color:#dcfbff;
      transition:transform .24s ease;
      flex:0 0 auto;
    }
    .faq-item[aria-expanded="true"] .faq-button i{transform:rotate(45deg)}
    .faq-content{
      display:none;
      padding:0 22px 22px;
      color:var(--text-2);
      font-size:15px;
    }
    .faq-item.open .faq-content{display:block}
    .faq-item.open{
      box-shadow:inset 3px 0 0 rgba(33,212,253,.88);
    }

    .cta-panel{
      position:relative;
      border-radius:34px;
      padding:42px 34px;
      border:1px solid rgba(148,216,255,.16);
      background:
        radial-gradient(circle at 16% 18%, rgba(33,212,253,.18), transparent 26%),
        radial-gradient(circle at 84% 22%, rgba(124,58,237,.18), transparent 26%),
        linear-gradient(180deg, rgba(11, 27, 50, .92), rgba(7, 17, 31, .96));
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(148,216,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,216,255,.06) 1px, transparent 1px);
      background-size:44px 44px;
      opacity:.42;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.6), rgba(0,0,0,.08));
      pointer-events:none;
    }
    .cta-panel h2{
      margin:0 0 12px;
      font-size:clamp(28px, 4vw, 48px);
      line-height:1.1;
      max-width:12em;
    }
    .cta-panel p{
      margin:0 0 24px;
      color:var(--text-2);
      max-width:760px;
      font-size:17px;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      position:relative;
      z-index:1;
    }

    .site-footer{
      margin-top:var(--space-7);
      padding:40px 0 24px;
      border-top:1px solid rgba(148,216,255,.12);
      background:linear-gradient(180deg, rgba(4, 16, 29, .2), rgba(4, 16, 29, .88));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.08fr .46fr .46fr;
      gap:26px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:42px;height:42px}
    .footer-brand strong{
      font-size:18px;
    }
    .footer-desc{
      color:var(--text-2);
      max-width:36rem;
      margin:0 0 18px;
      font-size:15px;
    }
    .footer-links h3{
      margin:0 0 14px;
      font-size:16px;
    }
    .footer-links ul{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--text-2);
      font-size:14px;
    }
    .footer-links a:hover{color:var(--text)}
    .copyright{
      margin-top:28px;
      padding-top:18px;
      border-top:1px solid rgba(148,216,255,.1);
      color:var(--text-3);
      font-size:13px;
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:10px;
    }

    .anchor-note{
      color:var(--text-3);
      font-size:13px;
      margin-top:10px;
    }

    @media (min-width: 640px){
      .search-box{display:block}
    }
    @media (min-width: 1024px){
      .menu-toggle{display:none}
    }
    @media (max-width: 1023px){
      .header-inner{flex-wrap:wrap}
      .nav-wrap{display:none}
      .header-actions{margin-left:0}
      .hero{min-height:auto;padding-top:130px}
      .hero-grid{grid-template-columns:1fr;gap:24px}
      .solution-grid,
      .matrix-wrap,
      .preview-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .results-band,
      .feedback-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .trust-row{
        grid-template-columns:1fr;
      }
      .feature-head{
        flex-direction:column;
      }
      .feature-stat{text-align:left}
    }
    @media (max-width: 639px){
      .container-xx{width:min(var(--container), calc(100% - 20px))}
      .section{padding:58px 0}
      .section-title{font-size:clamp(26px, 8vw, 34px)}
      .hero h1{font-size:clamp(32px, 11vw, 42px);max-width:none}
      .hero p{font-size:16px}
      .hero-actions .button{width:100%;justify-content:center}
      .player-card{padding:14px;border-radius:24px}
      .screen{min-height:300px;padding:14px}
      .mock-video{inset:14px 14px 84px}
      .play-button{width:68px;height:68px}
      .player-side{grid-template-columns:1fr}
      .content-card{grid-template-columns:1fr}
      .content-card .action{align-items:flex-start}
      .results-band,
      .feedback-grid,
      .feature-grid{
        grid-template-columns:1fr;
      }
      .cta-panel{padding:28px 20px;border-radius:28px}
      .faq-button{padding:18px 18px}
      .faq-button span{font-size:16px}
      .footer-links ul{gap:8px}
      .copyright{font-size:12px}
    }

/* roulang page: category2 */
:root{
      --bg-0:#050C18;
      --bg-1:#07111F;
      --bg-2:#0A1930;
      --bg-3:#102A4C;
      --cyan:#21D4FD;
      --sky:#38BDF8;
      --violet:#7C3AED;
      --lavender:#A78BFA;
      --text:#F4F8FF;
      --text-soft:#B8C7DA;
      --text-muted:#7F91AA;
      --text-bright:#DDFBFF;
      --border:rgba(148,216,255,.18);
      --border-strong:rgba(56,189,248,.42);
      --glass:rgba(9,25,48,.58);
      --glass-2:rgba(15,35,65,.48);
      --glass-3:rgba(4,14,28,.72);
      --shadow:0 24px 80px rgba(33,212,253,.12);
      --shadow-strong:0 26px 90px rgba(56,189,248,.22);
      --radius-lg:30px;
      --radius-md:22px;
      --radius-sm:16px;
      --container:1220px;
      --nav-h:78px;
      --ease:all .28s 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;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(33,212,253,.16), transparent 34%),
        radial-gradient(circle at 84% 12%, rgba(124,58,237,.22), transparent 38%),
        radial-gradient(circle at 50% 100%, rgba(16,42,76,.76), transparent 48%),
        linear-gradient(180deg,var(--bg-0),var(--bg-1) 40%,#06101d 100%);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(148,216,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,216,255,.045) 1px, transparent 1px);
      background-size:46px 46px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.8), rgba(0,0,0,.2));
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.22;
      background:
        repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0, rgba(255,255,255,.03) 1px, transparent 1px, transparent 4px);
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img,svg{max-width:100%;display:block}
    button,input{font-family:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(33,212,253,.28);color:#fff}
    :focus-visible{outline:2px solid rgba(33,212,253,.9);outline-offset:4px;border-radius:12px}

    .container-xx{
      width:min(calc(100% - 40px), var(--container));
      margin-inline:auto;
    }
    .section{padding:104px 0;position:relative}
    .section.compact{padding:78px 0}
    .section-heading{max-width:820px;margin-bottom:38px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--border);
      border-radius:999px;
      color:var(--text-bright);
      background:rgba(9,25,48,.5);
      backdrop-filter:blur(14px);
      font-size:13px;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .eyebrow:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 16px rgba(33,212,253,.9);
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(36px,5.8vw,64px);
      line-height:1.12;
      font-weight:800;
      letter-spacing:-.04em;
      margin-bottom:22px;
    }
    h2{
      font-size:clamp(29px,4vw,46px);
      line-height:1.18;
      font-weight:800;
      letter-spacing:-.03em;
      margin-bottom:16px;
    }
    h3{font-size:22px;line-height:1.35;font-weight:750;margin-bottom:12px}
    p{color:var(--text-soft);font-size:16.5px}
    .lead{font-size:18px;line-height:1.85;max-width:760px}
    .gradient-text{
      background:linear-gradient(100deg,#F4F8FF 0%,#DDFBFF 36%,#38BDF8 66%,#A78BFA 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:fixed;
      top:14px;
      left:0;
      width:100%;
      z-index:1000;
      transition:var(--ease);
    }
    .site-header.is-solid{top:0}
    .header-inner{
      width:min(calc(100% - 40px), var(--container));
      min-height:var(--nav-h);
      margin:0 auto;
      padding:12px 14px 12px 16px;
      display:flex;
      align-items:center;
      gap:18px;
      border:1px solid rgba(148,216,255,.2);
      border-radius:24px;
      background:rgba(5,12,24,.56);
      backdrop-filter:blur(22px) saturate(145%);
      box-shadow:0 16px 60px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.08);
      transition:var(--ease);
    }
    .site-header.is-solid .header-inner{
      width:100%;
      border-radius:0;
      border-left:0;
      border-right:0;
      border-top:0;
      background:rgba(5,12,24,.88);
      min-height:72px;
    }
    .brand,.footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      color:#04111f;
      border-radius:16px;
      background:linear-gradient(135deg,var(--cyan),var(--lavender));
      box-shadow:0 0 26px rgba(33,212,253,.42);
      flex:0 0 auto;
    }
    .brand-mark svg{width:23px;height:23px}
    .brand-text strong{
      display:block;
      font-size:17px;
      line-height:1.2;
      color:var(--text);
      letter-spacing:-.02em;
    }
    .brand-text span{
      display:block;
      font-size:12px;
      line-height:1.35;
      color:var(--text-muted);
      margin-top:3px;
    }
    .nav-wrap{
      flex:1;
      display:flex;
      justify-content:center;
      min-width:0;
    }
    .nav-list{
      list-style:none;
      display:flex;
      align-items:center;
      gap:4px;
      margin:0;
      padding:5px;
      border-radius:999px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,216,255,.1);
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      color:var(--text-soft);
      font-size:14px;
      white-space:nowrap;
    }
    .nav-link:hover,.nav-link.active{
      color:var(--text-bright);
      background:rgba(33,212,253,.12);
      box-shadow:inset 0 0 0 1px rgba(33,212,253,.18);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .search-box{
      width:190px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid rgba(148,216,255,.16);
      background:rgba(4,14,28,.48);
      color:var(--text-muted);
      transition:var(--ease);
    }
    .search-box:focus-within{
      border-color:rgba(33,212,253,.65);
      box-shadow:0 0 0 4px rgba(33,212,253,.1);
      color:var(--cyan);
    }
    .search-box .icon{width:18px;flex:0 0 auto}
    .search-box input{
      width:100%;
      min-width:0;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      height:100%;
      box-shadow:none;
      padding:0;
      margin:0;
      font-size:13px;
    }
    .search-box input::placeholder{color:var(--text-muted)}
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.01em;
      transition:var(--ease);
      margin:0;
      line-height:1;
      white-space:nowrap;
    }
    .button.primary{
      color:#04111f;
      background:linear-gradient(135deg,var(--cyan),var(--sky) 46%,var(--lavender));
      box-shadow:0 10px 28px rgba(33,212,253,.24), inset 0 1px 0 rgba(255,255,255,.5);
    }
    .button.secondary{
      color:var(--text-bright);
      background:rgba(15,35,65,.54);
      border-color:rgba(148,216,255,.22);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    }
    .button.primary:hover{
      transform:translateY(-2px);
      filter:brightness(1.08);
      box-shadow:0 16px 44px rgba(33,212,253,.34);
      color:#03101d;
    }
    .button.secondary:hover{
      transform:translateY(-2px);
      color:#fff;
      border-color:rgba(33,212,253,.52);
      background:rgba(33,212,253,.12);
    }
    .menu-toggle{
      width:44px;
      height:44px;
      display:none;
      place-items:center;
      border-radius:14px;
      border:1px solid rgba(148,216,255,.18);
      background:rgba(9,25,48,.62);
      color:var(--text);
    }
    .menu-toggle svg{width:23px;height:23px}
    .mobile-panel{
      display:none;
      margin-top:10px;
      border:1px solid var(--border);
      border-radius:22px;
      background:rgba(5,12,24,.86);
      backdrop-filter:blur(22px);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .mobile-panel.is-open{display:block}
    .mobile-links{
      margin:0;
      padding:8px;
      list-style:none;
    }
    .mobile-links a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      min-height:48px;
      padding:0 14px;
      border-radius:14px;
      color:var(--text-soft);
      border:1px solid transparent;
    }
    .mobile-links a span{font-size:12px;color:var(--text-muted)}
    .mobile-links a:hover,.mobile-links a.active{
      color:var(--text-bright);
      background:rgba(33,212,253,.12);
      border-color:rgba(33,212,253,.18);
    }

    .guide-hero{
      position:relative;
      min-height:560px;
      padding:150px 0 78px;
      overflow:hidden;
    }
    .guide-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 70% 22%, rgba(33,212,253,.20), transparent 30%),
        radial-gradient(circle at 28% 60%, rgba(124,58,237,.18), transparent 36%),
        linear-gradient(180deg, rgba(5,12,24,.28), rgba(5,12,24,.72));
      pointer-events:none;
    }
    .hero-content{position:relative;z-index:2}
    .breadcrumb{
      display:flex;
      gap:8px;
      align-items:center;
      flex-wrap:wrap;
      margin-bottom:24px;
      color:var(--text-muted);
      font-size:14px;
    }
    .breadcrumb a{color:var(--text-soft)}
    .breadcrumb a:hover{color:var(--cyan)}
    .hero-actions{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:wrap;
      margin-top:30px;
    }
    .guide-board{
      position:relative;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(9,25,48,.64),rgba(15,35,65,.36));
      backdrop-filter:blur(20px) saturate(135%);
      box-shadow:var(--shadow);
      padding:22px;
      overflow:hidden;
    }
    .guide-board:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg,rgba(255,255,255,.1),transparent 24%,transparent 70%,rgba(33,212,253,.08));
      pointer-events:none;
    }
    .screen-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:20px;
      position:relative;
      z-index:1;
    }
    .dot-group{display:flex;gap:8px}
    .dot-group span{
      width:10px;
      height:10px;
      border-radius:50%;
      background:rgba(184,199,218,.4);
    }
    .dot-group span:nth-child(1){background:#ff7a90}
    .dot-group span:nth-child(2){background:#ffd166}
    .dot-group span:nth-child(3){background:#2ee59d}
    .screen-label{
      font-size:13px;
      color:var(--text-muted);
      padding:5px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(148,216,255,.12);
    }
    .decision-preview{
      position:relative;
      z-index:1;
      display:grid;
      gap:14px;
    }
    .decision-row{
      display:grid;
      grid-template-columns:44px 1fr auto;
      align-items:center;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:rgba(4,14,28,.42);
      border:1px solid rgba(148,216,255,.12);
    }
    .decision-row:hover{
      border-color:rgba(33,212,253,.38);
      transform:translateY(-2px);
    }
    .decision-icon{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:15px;
      color:var(--cyan);
      background:rgba(33,212,253,.1);
      border:1px solid rgba(33,212,253,.22);
    }
    .decision-row strong{display:block;color:var(--text);line-height:1.3}
    .decision-row small{display:block;color:var(--text-muted);margin-top:3px}
    .mini-badge{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      color:var(--text-bright);
      border:1px solid rgba(33,212,253,.24);
      background:rgba(33,212,253,.1);
      font-size:12px;
      white-space:nowrap;
    }

    .glass-card{
      position:relative;
      border:1px solid var(--border);
      border-radius:var(--radius-md);
      background:linear-gradient(145deg,var(--glass),var(--glass-2));
      backdrop-filter:blur(18px) saturate(135%);
      box-shadow:0 18px 64px rgba(0,0,0,.18);
      overflow:hidden;
      transition:var(--ease);
    }
    .glass-card:before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(33,212,253,.55),transparent);
      opacity:.78;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(33,212,253,.42);
      box-shadow:var(--shadow-strong);
    }
    .card-pad{padding:26px}
    .badge-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:14px}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:30px;
      padding:0 11px;
      border-radius:999px;
      color:var(--text-bright);
      border:1px solid rgba(148,216,255,.18);
      background:rgba(255,255,255,.045);
      font-size:13px;
    }
    .tag.hot{border-color:rgba(33,212,253,.36);background:rgba(33,212,253,.12)}
    .tag.purple{border-color:rgba(167,139,250,.36);background:rgba(124,58,237,.14)}
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-top:8px;
      color:var(--cyan);
      font-weight:700;
    }
    .text-link:hover{gap:12px;color:#fff}

    .timeline{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      margin-top:34px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:7%;
      right:7%;
      top:34px;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(33,212,253,.55),rgba(167,139,250,.5),transparent);
    }
    .step-card{
      position:relative;
      z-index:1;
      padding:24px;
      min-height:250px;
    }
    .step-no{
      width:66px;
      height:66px;
      display:grid;
      place-items:center;
      border-radius:22px;
      margin-bottom:22px;
      color:#06101d;
      background:linear-gradient(135deg,var(--cyan),var(--lavender));
      box-shadow:0 0 28px rgba(33,212,253,.26);
      font-size:24px;
      font-weight:850;
    }
    .step-card h3{font-size:20px}
    .step-card p{font-size:15.5px;margin-bottom:0}

    .compare-wrap{
      border-radius:var(--radius-lg);
      border:1px solid var(--border);
      background:rgba(9,25,48,.54);
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:0;
      background:transparent;
      color:var(--text-soft);
    }
    .compare-table thead{
      background:linear-gradient(90deg,rgba(33,212,253,.16),rgba(124,58,237,.16));
    }
    .compare-table th,.compare-table td{
      padding:20px 22px;
      border-bottom:1px solid rgba(148,216,255,.12);
      border-right:1px solid rgba(148,216,255,.08);
      text-align:left;
      vertical-align:top;
    }
    .compare-table th{
      color:var(--text);
      font-size:15px;
      font-weight:800;
    }
    .compare-table td{
      background:rgba(4,14,28,.18);
      font-size:15px;
    }
    .compare-table td:first-child{
      color:var(--text-bright);
      font-weight:750;
    }
    .compare-table tr:last-child td{border-bottom:0}
    .compare-table th:last-child,.compare-table td:last-child{border-right:0}

    .topic-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:18px;
      align-items:stretch;
    }
    .topic-card{padding:26px;min-height:260px}
    .topic-card.large{
      grid-row:span 2;
      min-height:538px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 22% 20%,rgba(33,212,253,.16),transparent 32%),
        linear-gradient(145deg,rgba(9,25,48,.7),rgba(15,35,65,.42));
    }
    .topic-number{
      display:inline-flex;
      width:42px;
      height:42px;
      align-items:center;
      justify-content:center;
      border-radius:15px;
      background:rgba(33,212,253,.12);
      border:1px solid rgba(33,212,253,.28);
      color:var(--cyan);
      font-weight:850;
      margin-bottom:18px;
    }
    .meter{
      height:10px;
      border-radius:999px;
      overflow:hidden;
      background:rgba(255,255,255,.07);
      margin-top:22px;
    }
    .meter span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--lavender));
      box-shadow:0 0 18px rgba(33,212,253,.34);
    }
    .safe-panel{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:20px;
      align-items:stretch;
    }
    .shield-card{
      padding:30px;
      background:
        radial-gradient(circle at 74% 24%,rgba(33,212,253,.16),transparent 32%),
        linear-gradient(145deg,rgba(9,25,48,.68),rgba(15,35,65,.38));
    }
    .shield-icon{
      width:76px;
      height:76px;
      border-radius:26px;
      display:grid;
      place-items:center;
      color:var(--cyan);
      background:rgba(33,212,253,.1);
      border:1px solid rgba(33,212,253,.26);
      box-shadow:0 0 35px rgba(33,212,253,.18);
      margin-bottom:22px;
    }
    .shield-icon svg{width:38px;height:38px}
    .check-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:14px;
    }
    .check-list li{
      display:grid;
      grid-template-columns:30px 1fr;
      gap:12px;
      align-items:start;
      padding:16px;
      border-radius:18px;
      border:1px solid rgba(148,216,255,.13);
      background:rgba(4,14,28,.32);
      color:var(--text-soft);
    }
    .check-list i{
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#06101d;
      background:linear-gradient(135deg,var(--cyan),var(--sky));
      font-style:normal;
      font-weight:900;
    }
    .check-list strong{display:block;color:var(--text);margin-bottom:3px}

    .accordion{
      background:transparent;
      margin:0;
    }
    .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--border);
      border-radius:20px;
      overflow:hidden;
      background:rgba(9,25,48,.52);
      backdrop-filter:blur(16px);
    }
    .accordion-title{
      position:relative;
      border:0 !important;
      color:var(--text) !important;
      background:transparent !important;
      font-size:18px;
      font-weight:750;
      padding:20px 54px 20px 22px;
      line-height:1.45;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:rgba(33,212,253,.08) !important;
      color:var(--text-bright) !important;
    }
    .accordion-title:before{
      color:var(--cyan);
      right:22px;
      margin-top:-10px;
      font-size:24px;
    }
    .accordion-content{
      border:0 !important;
      background:rgba(4,14,28,.26) !important;
      color:var(--text-soft);
      padding:0 22px 22px 22px;
      position:relative;
    }
    .accordion-content:before{
      content:"";
      position:absolute;
      left:0;
      top:0;
      bottom:22px;
      width:3px;
      background:linear-gradient(var(--cyan),var(--violet));
      border-radius:999px;
      box-shadow:0 0 14px rgba(33,212,253,.55);
    }
    .accordion-content p{margin:0;padding-left:14px;font-size:15.8px}

    .cta-panel{
      position:relative;
      padding:46px;
      border-radius:32px;
      border:1px solid rgba(148,216,255,.22);
      background:
        radial-gradient(circle at 22% 20%,rgba(33,212,253,.22),transparent 36%),
        radial-gradient(circle at 76% 74%,rgba(124,58,237,.22),transparent 34%),
        linear-gradient(145deg,rgba(9,25,48,.78),rgba(5,12,24,.6));
      overflow:hidden;
      box-shadow:var(--shadow-strong);
    }
    .cta-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:28px 28px;
      opacity:.26;
      pointer-events:none;
    }
    .cta-content{position:relative;z-index:1}
    .cta-actions{
      display:flex;
      justify-content:flex-end;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
      height:100%;
    }

    .site-footer{
      padding:70px 0 34px;
      border-top:1px solid rgba(148,216,255,.12);
      background:linear-gradient(180deg,rgba(5,12,24,.32),rgba(3,8,16,.82));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .7fr .7fr;
      gap:42px;
      margin-bottom:34px;
    }
    .footer-brand strong{color:var(--text);font-size:18px}
    .footer-desc{
      max-width:560px;
      margin:18px 0 0;
      color:var(--text-muted);
      font-size:14.5px;
    }
    .footer-links h3{
      font-size:16px;
      color:var(--text);
      margin-bottom:14px;
    }
    .footer-links ul{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--text-muted);
      font-size:14.5px;
    }
    .footer-links a:hover{color:var(--cyan);padding-left:4px}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:24px;
      border-top:1px solid rgba(148,216,255,.1);
      color:var(--text-muted);
      font-size:13.5px;
    }

    .reveal{
      animation:fadeUp .7s ease both;
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(18px)}
      to{opacity:1;transform:translateY(0)}
    }

    @media (max-width:1100px){
      .nav-wrap{display:none}
      .search-box{display:none}
      .menu-toggle{display:grid}
      .timeline{grid-template-columns:repeat(2,1fr)}
      .timeline:before{display:none}
      .topic-grid{grid-template-columns:1fr 1fr}
      .topic-card.large{grid-row:auto;grid-column:span 2;min-height:360px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid > div:first-child{grid-column:span 2}
    }
    @media (max-width:800px){
      .container-xx{width:min(calc(100% - 28px), var(--container))}
      .section{padding:72px 0}
      .section.compact{padding:58px 0}
      .guide-hero{padding:126px 0 58px;min-height:auto}
      .header-inner{width:min(calc(100% - 24px), var(--container));border-radius:20px;padding:10px 12px}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-text strong{font-size:15px;max-width:138px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
      .brand-text span{display:none}
      .header-actions .button.secondary{display:none}
      .hero-actions,.cta-actions{align-items:stretch;justify-content:flex-start}
      .hero-actions .button,.cta-actions .button{width:100%}
      .timeline,.topic-grid,.safe-panel{grid-template-columns:1fr}
      .topic-card.large{grid-column:auto;min-height:auto}
      .compare-wrap{overflow-x:auto}
      .compare-table{min-width:760px}
      .decision-row{grid-template-columns:40px 1fr}
      .decision-row .mini-badge{grid-column:2}
      .cta-panel{padding:30px 22px;border-radius:26px}
      .footer-grid,.footer-grid > div:first-child{grid-template-columns:1fr;grid-column:auto}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      h1{font-size:35px}
      h2{font-size:28px}
      .lead{font-size:16px}
      .card-pad,.topic-card,.step-card{padding:21px}
      .guide-board{padding:16px;border-radius:24px}
      .accordion-title{font-size:16px;padding:18px 48px 18px 18px}
      .accordion-content{padding:0 18px 18px}
      .site-header{top:8px}
    }

/* roulang page: category1 */
:root{
      --bg:#07111F;
      --bg-2:#0A1930;
      --bg-3:#102A4C;
      --panel:rgba(9, 25, 48, .72);
      --panel-2:rgba(15, 35, 65, .52);
      --panel-3:rgba(14, 28, 53, .84);
      --line:rgba(148, 216, 255, .18);
      --line-strong:rgba(83, 198, 255, .42);
      --text:#F4F8FF;
      --muted:#B8C7DA;
      --sub:#7F91AA;
      --accent:#21D4FD;
      --accent-2:#38BDF8;
      --accent-3:#7C3AED;
      --accent-4:#A78BFA;
      --good:#56F0C3;
      --shadow:0 18px 50px rgba(2, 10, 24, .45);
      --shadow-soft:0 10px 28px rgba(30, 124, 214, .14);
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:14px;
      --header-h:82px;
      --container:1240px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{
      scroll-behavior:smooth;
      background:var(--bg);
    }
    body{
      margin:0;
      color:var(--text);
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.75;
      background:
        radial-gradient(1100px 700px at 15% -10%, rgba(33, 212, 253, .16), transparent 55%),
        radial-gradient(900px 680px at 92% 5%, rgba(124, 58, 237, .20), transparent 48%),
        radial-gradient(760px 520px at 50% 88%, rgba(56, 189, 248, .08), transparent 60%),
        linear-gradient(180deg, #050C17 0%, #07111F 42%, #091425 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size:72px 72px;
      mask-image:radial-gradient(circle at center, black 42%, transparent 100%);
      opacity:.36;
      z-index:0;
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:linear-gradient(180deg, rgba(7,17,31,.08), rgba(7,17,31,.42));
      z-index:0;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .24s var(--ease), background-color .24s var(--ease), border-color .24s var(--ease), transform .24s var(--ease), box-shadow .24s var(--ease), opacity .24s var(--ease);
    }
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    :focus-visible{
      outline:2px solid rgba(33, 212, 253, .9);
      outline-offset:3px;
      box-shadow:0 0 0 5px rgba(33, 212, 253, .18);
    }

    .container-xx{
      width:min(var(--container), calc(100% - 32px));
      margin-inline:auto;
      position:relative;
      z-index:1;
    }

    .site-header{
      position:fixed;
      inset:0 0 auto 0;
      z-index:60;
      padding:12px 0;
      transition:background-color .28s var(--ease), box-shadow .28s var(--ease), backdrop-filter .28s var(--ease), border-color .28s var(--ease);
      background:linear-gradient(180deg, rgba(8,16,28,.36), rgba(8,16,28,.12));
      backdrop-filter: blur(18px) saturate(140%);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .site-header.is-scrolled{
      background:rgba(7,17,31,.86);
      box-shadow:0 12px 34px rgba(0,0,0,.22);
      border-bottom-color:rgba(148,216,255,.11);
      backdrop-filter: blur(18px) saturate(130%);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      min-width:max-content;
      flex:0 0 auto;
    }
    .brand-mark,
    .footer-brand .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,.24), transparent 38%),
        linear-gradient(145deg, rgba(33,212,253,.92), rgba(124,58,237,.82));
      color:#fff;
      box-shadow:0 10px 28px rgba(33,212,253,.26), inset 0 1px 0 rgba(255,255,255,.22);
      border:1px solid rgba(255,255,255,.18);
    }
    .brand-mark svg,
    .footer-brand .brand-mark svg{
      width:19px;height:19px;
      filter:drop-shadow(0 0 10px rgba(255,255,255,.24));
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:2px;
      line-height:1.15;
    }
    .brand-text strong,
    .footer-brand strong{
      font-size:18px;
      letter-spacing:.2px;
      color:var(--text);
    }
    .brand-text span{
      font-size:12px;
      color:var(--sub);
    }

    .nav-wrap{
      flex:1 1 auto;
      display:flex;
      justify-content:center;
    }
    .nav-list{
      list-style:none;
      display:flex;
      align-items:center;
      gap:10px;
      margin:0;
      padding:8px;
      border:1px solid rgba(148,216,255,.12);
      border-radius:999px;
      background:rgba(8,18,35,.28);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .nav-item{margin:0}
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:15px;
      letter-spacing:.1px;
      position:relative;
      border:1px solid transparent;
    }
    .nav-link:hover{
      color:var(--text);
      background:rgba(255,255,255,.04);
      border-color:rgba(148,216,255,.14);
      transform:translateY(-1px);
    }
    .nav-link.active,
    .nav-link[aria-current="page"]{
      color:#fff;
      background:linear-gradient(145deg, rgba(33,212,253,.2), rgba(124,58,237,.18));
      border-color:rgba(79, 226, 255, .32);
      box-shadow:0 0 0 1px rgba(79, 226, 255, .06) inset, 0 10px 20px rgba(33,212,253,.10);
    }

    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }
    .search-box{
      display:flex;
      align-items:center;
      gap:10px;
      width:286px;
      max-width:34vw;
      min-height:44px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(10,25,48,.55);
      border:1px solid rgba(148,216,255,.14);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
      transition:border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
    }
    .search-box:hover{
      border-color:rgba(56,189,248,.28);
      box-shadow:0 0 0 1px rgba(33,212,253,.08) inset;
    }
    .search-box .icon{
      width:18px;height:18px;
      color:rgba(221,251,255,.84);
      display:grid;
      place-items:center;
      flex:0 0 auto;
    }
    .search-box svg{width:18px;height:18px}
    .search-box input{
      width:100%;
      border:none;
      background:transparent;
      color:var(--text);
      outline:none;
      padding:0;
      font-size:14px;
      min-width:0;
    }
    .search-box input::placeholder{color:rgba(184,199,218,.72)}

    .button,
    .button.secondary,
    .button.primary{
      min-height:44px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:0 18px;
      font-weight:700;
      letter-spacing:.2px;
      border:1px solid transparent;
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease), color .22s var(--ease), opacity .22s var(--ease);
      cursor:pointer;
      text-align:center;
      white-space:nowrap;
    }
    .button.primary{
      color:#05101e;
      background:linear-gradient(135deg, #79e7ff 0%, #2dc0ff 52%, #7f7cff 100%);
      box-shadow:0 16px 30px rgba(33,212,253,.28), inset 0 1px 0 rgba(255,255,255,.45);
    }
    .button.primary:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(33,212,253,.34), 0 0 0 1px rgba(255,255,255,.14) inset;
      color:#04111d;
    }
    .button.secondary{
      color:var(--text);
      background:rgba(12,27,50,.46);
      border-color:rgba(148,216,255,.18);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .button.secondary:hover{
      transform:translateY(-2px);
      border-color:rgba(56,189,248,.46);
      background:rgba(18,39,72,.58);
      box-shadow:0 10px 24px rgba(33,212,253,.12);
    }
    .button.ghost{
      color:var(--muted);
      background:transparent;
      border-color:rgba(148,216,255,.16);
    }

    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      padding:0;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      background:rgba(12,27,50,.56);
      border:1px solid rgba(148,216,255,.14);
      color:var(--text);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .menu-toggle svg{width:22px;height:22px}
    .menu-toggle:hover{
      border-color:rgba(56,189,248,.42);
      transform:translateY(-1px);
      box-shadow:0 10px 18px rgba(33,212,253,.12);
    }

    .mobile-panel{
      display:none;
      margin-top:10px;
      padding:14px;
      border-radius:24px;
      background:rgba(8,17,31,.88);
      border:1px solid rgba(148,216,255,.14);
      box-shadow:0 22px 46px rgba(1,6,14,.32);
      backdrop-filter:blur(18px) saturate(130%);
    }
    .mobile-panel.open{display:block}
    .mobile-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .mobile-links a{
      min-height:46px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:0 16px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(148,216,255,.10);
      color:var(--text);
      font-weight:600;
    }
    .mobile-links a span{
      color:var(--sub);
      font-weight:500;
      font-size:13px;
    }
    .mobile-links a:hover{
      border-color:rgba(56,189,248,.34);
      background:rgba(33,212,253,.06);
    }
    .mobile-links a.active{
      background:linear-gradient(145deg, rgba(33,212,253,.16), rgba(124,58,237,.10));
      border-color:rgba(79, 226, 255, .30);
    }

    main{
      position:relative;
      z-index:1;
      padding-top:calc(var(--header-h) + 20px);
    }
    .section{
      padding:104px 0;
      position:relative;
    }
    .section.compact{
      padding:72px 0;
    }
    .section-title{
      margin:0 0 14px;
      font-size:clamp(28px, 3.1vw, 46px);
      line-height:1.12;
      letter-spacing:-.02em;
    }
    .section-title .accent{
      background:linear-gradient(90deg, #dffcff 0%, #7ee9ff 46%, #bda8ff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .section-lead{
      margin:0;
      color:var(--muted);
      font-size:17px;
      max-width:760px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      margin-bottom:18px;
      border-radius:999px;
      color:#dffcff;
      background:rgba(33,212,253,.08);
      border:1px solid rgba(79,226,255,.16);
      font-size:13px;
      letter-spacing:.08em;
      text-transform:none;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--accent), var(--accent-4));
      box-shadow:0 0 0 5px rgba(33,212,253,.10);
    }

    .hero{
      padding-top:46px;
      padding-bottom:56px;
      min-height:560px;
      display:flex;
      align-items:center;
    }
    .hero::before,
    .hero::after{
      content:"";
      position:absolute;
      inset:auto 0 0 0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(148,216,255,.16), transparent);
    }
    .hero-grid{
      align-items:center;
      gap:28px;
    }
    .hero-copy{
      padding:10px 0 10px;
    }
    .hero h1{
      margin:0 0 18px;
      font-size:clamp(36px, 5.6vw, 64px);
      line-height:1.08;
      letter-spacing:-.04em;
      max-width:11.5ch;
    }
    .hero h1 .brand-line{
      display:inline-block;
      background:linear-gradient(90deg, #effcff 0%, #7cf0ff 34%, #a98dff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero p{
      margin:0 0 24px;
      color:var(--muted);
      font-size:17px;
      max-width:680px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:0 0 24px;
    }
    .hero-pills{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .mini-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,216,255,.12);
      color:#dffcff;
      font-size:13px;
      letter-spacing:.02em;
    }
    .mini-pill i{
      width:8px;height:8px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--accent), var(--accent-4));
      box-shadow:0 0 0 4px rgba(33,212,253,.10);
      display:inline-block;
    }

    .player-card{
      position:relative;
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:
        radial-gradient(circle at 50% 16%, rgba(124,58,237,.22), transparent 30%),
        linear-gradient(180deg, rgba(15,35,65,.9), rgba(7,17,31,.74));
      border:1px solid rgba(148,216,255,.16);
      box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.04);
      backdrop-filter:blur(18px) saturate(130%);
      padding:18px;
      min-height:500px;
    }
    .player-card::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:linear-gradient(135deg, rgba(33,212,253,.16), rgba(124,58,237,.06), rgba(33,212,253,.14));
      opacity:.55;
      mask:linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
      -webkit-mask:linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
      -webkit-mask-composite:xor;
      mask-composite:exclude;
      padding:1px;
      border-radius:inherit;
      pointer-events:none;
    }
    .player-topbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      margin-bottom:14px;
    }
    .window-dots{
      display:flex;
      gap:8px;
    }
    .window-dots span{
      width:10px;height:10px;border-radius:50%;
      background:rgba(255,255,255,.22);
      box-shadow:0 0 0 1px rgba(255,255,255,.06) inset;
    }
    .window-dots span:nth-child(1){background:#ff7a7a}
    .window-dots span:nth-child(2){background:#ffd96d}
    .window-dots span:nth-child(3){background:#72efaa}
    .player-label{
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      color:#dffcff;
      background:rgba(33,212,253,.10);
      border:1px solid rgba(79,226,255,.16);
    }
    .screen{
      position:relative;
      border-radius:24px;
      overflow:hidden;
      min-height:310px;
      background:
        linear-gradient(145deg, rgba(33,212,253,.12), rgba(124,58,237,.08)),
        linear-gradient(180deg, rgba(18,41,74,.92), rgba(8,16,30,.98));
      border:1px solid rgba(148,216,255,.12);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
      padding:22px;
    }
    .screen::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(255,255,255,.08), transparent 24%),
        linear-gradient(90deg, transparent, rgba(255,255,255,.04), transparent);
      opacity:.24;
      pointer-events:none;
    }
    .screen::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 60%, rgba(8,16,30,.32));
      pointer-events:none;
    }
    .screen-inner{
      position:relative;
      z-index:1;
      height:100%;
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .play-backdrop{
      position:relative;
      border-radius:22px;
      background:
        radial-gradient(circle at 50% 45%, rgba(255,255,255,.10), transparent 28%),
        linear-gradient(135deg, rgba(33,212,253,.12), rgba(124,58,237,.04));
      border:1px solid rgba(148,216,255,.14);
      display:grid;
      place-items:center;
      min-height:100%;
      overflow:hidden;
    }
    .play-backdrop .play-btn{
      width:84px;height:84px;
      border-radius:50%;
      background:linear-gradient(145deg, rgba(33,212,253,.96), rgba(124,58,237,.82));
      display:grid;
      place-items:center;
      box-shadow:0 18px 42px rgba(33,212,253,.26), inset 0 1px 0 rgba(255,255,255,.3);
      color:#fff;
      border:1px solid rgba(255,255,255,.2);
      transition:transform .22s var(--ease), box-shadow .22s var(--ease);
    }
    .play-backdrop .play-btn svg{
      width:28px;height:28px;margin-left:3px;
    }
    .play-backdrop .play-btn:hover{
      transform:scale(1.04);
      box-shadow:0 22px 50px rgba(33,212,253,.34), 0 0 0 8px rgba(33,212,253,.08);
    }
    .screen-cards{
      display:grid;
      gap:12px;
      align-content:stretch;
    }
    .mini-card{
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,216,255,.12);
      padding:14px;
      display:flex;
      flex-direction:column;
      gap:8px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .mini-card strong{
      font-size:14px;
      color:#effcff;
    }
    .mini-card span{
      font-size:12px;
      color:var(--sub);
    }
    .mini-stats{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:6px;
    }
    .stat-chip{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(33,212,253,.08);
      border:1px solid rgba(79,226,255,.14);
      color:#dffcff;
      font-size:12px;
    }
    .progress-bar{
      margin-top:auto;
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
      border:1px solid rgba(148,216,255,.10);
    }
    .progress-bar span{
      display:block;
      height:100%;
      width:68%;
      border-radius:inherit;
      background:linear-gradient(90deg, #7ee9ff, #57d5ff 55%, #a78bfa 100%);
      box-shadow:0 0 18px rgba(33,212,253,.28);
    }
    .player-footer{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-top:14px;
      color:var(--sub);
      font-size:12px;
    }
    .player-footer strong{color:#effcff;font-size:13px}
    .player-footer .dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--good);
      box-shadow:0 0 0 5px rgba(86,240,195,.12);
      display:inline-block;
      margin-right:8px;
    }

    .trust-strip{
      margin-top:28px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .trust-item{
      padding:16px 18px;
      border-radius:18px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,216,255,.10);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
    }
    .trust-item strong{
      display:block;
      color:#effcff;
      font-size:15px;
      margin-bottom:2px;
    }
    .trust-item span{
      color:var(--sub);
      font-size:13px;
    }
    .trust-item .mini-badge{
      width:40px;
      height:40px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#dffcff;
      background:linear-gradient(145deg, rgba(33,212,253,.12), rgba(124,58,237,.10));
      border:1px solid rgba(79,226,255,.12);
      flex:0 0 auto;
    }
    .trust-item .mini-badge svg{width:18px;height:18px}

    .panel-section{
      padding-top:28px;
    }
    .glass-card{
      position:relative;
      border-radius:var(--radius-lg);
      background:var(--panel);
      border:1px solid rgba(148,216,255,.14);
      box-shadow:var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.03);
      backdrop-filter:blur(18px) saturate(132%);
      overflow:hidden;
      transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(79,226,255,.30);
      box-shadow:0 20px 42px rgba(33,212,253,.12), 0 16px 32px rgba(0,0,0,.22);
    }
    .glass-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(255,255,255,.05), transparent 24%);
      pointer-events:none;
    }
    .card-inner{
      position:relative;
      z-index:1;
      padding:22px;
    }
    .section-heading{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:24px;
    }
    .section-heading .copy{
      max-width:780px;
    }
    .section-heading h2{
      margin:0 0 10px;
      font-size:clamp(28px, 3.3vw, 46px);
      line-height:1.12;
      letter-spacing:-.03em;
    }
    .section-heading p{
      margin:0;
      color:var(--muted);
      font-size:16px;
    }

    .issue-grid{
      margin-top:20px;
      display:grid;
      gap:14px;
    }
    .issue-item{
      display:grid;
      grid-template-columns:76px 1fr;
      gap:16px;
      align-items:start;
      padding:18px 20px;
      border-radius:22px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,216,255,.10);
    }
    .issue-index{
      width:62px;
      height:62px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:linear-gradient(145deg, rgba(33,212,253,.18), rgba(124,58,237,.12));
      border:1px solid rgba(79,226,255,.16);
      color:#effcff;
      font-size:20px;
      font-weight:800;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .issue-item h3{
      margin:0 0 6px;
      font-size:20px;
      line-height:1.28;
    }
    .issue-item p{
      margin:0;
      color:var(--muted);
      font-size:15px;
    }

    .filter-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:18px 0 24px;
    }
    .filter-pill{
      min-height:40px;
      padding:0 15px;
      border-radius:999px;
      display:inline-flex;
      align-items:center;
      color:var(--muted);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,216,255,.12);
      font-size:13px;
      letter-spacing:.02em;
      cursor:pointer;
      user-select:none;
    }
    .filter-pill:hover{
      color:#fff;
      border-color:rgba(79,226,255,.28);
      background:rgba(33,212,253,.08);
      transform:translateY(-1px);
    }
    .filter-pill.active{
      color:#03111d;
      background:linear-gradient(135deg, #8cf0ff 0%, #52d4ff 45%, #a78bfa 100%);
      border-color:transparent;
      box-shadow:0 12px 22px rgba(33,212,253,.18);
    }

    .matrix-grid{
      display:grid;
      gap:16px;
      grid-template-columns:repeat(12, minmax(0,1fr));
    }
    .matrix-card{
      border-radius:24px;
      background:
        radial-gradient(circle at 18% 18%, rgba(33,212,253,.12), transparent 32%),
        linear-gradient(180deg, rgba(10,25,48,.88), rgba(9,20,37,.72));
      border:1px solid rgba(148,216,255,.13);
      box-shadow:var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.03);
      overflow:hidden;
      transition:transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
      min-height:100%;
    }
    .matrix-card:hover{
      transform:translateY(-4px);
      border-color:rgba(79,226,255,.30);
      box-shadow:0 18px 38px rgba(33,212,253,.12);
    }
    .matrix-card .card-inner{
      height:100%;
      display:flex;
      flex-direction:column;
    }
    .matrix-card.featured{grid-column:span 7;}
    .matrix-side{
      grid-column:span 5;
      display:grid;
      gap:16px;
    }
    .matrix-mini-grid{
      display:grid;
      gap:16px;
      grid-template-columns:repeat(2, minmax(0,1fr));
    }
    .matrix-card.compact{min-height:220px}
    .card-kicker{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:16px;
    }
    .card-kicker .tag{
      min-height:30px;
      padding:0 11px;
      border-radius:999px;
      background:rgba(33,212,253,.10);
      border:1px solid rgba(79,226,255,.14);
      color:#dffcff;
      font-size:12px;
      display:inline-flex;
      align-items:center;
    }
    .card-kicker .time{
      color:var(--sub);
      font-size:12px;
    }
    .matrix-card h3{
      margin:0 0 10px;
      font-size:22px;
      line-height:1.22;
    }
    .matrix-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
    }
    .matrix-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:10px;
    }
    .matrix-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#d9e6f7;
      font-size:14px;
    }
    .matrix-list li::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      margin-top:9px;
      background:linear-gradient(135deg, var(--accent), var(--accent-4));
      flex:0 0 auto;
      box-shadow:0 0 0 4px rgba(33,212,253,.08);
    }
    .matrix-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:16px;
    }
    .matrix-meta .tag-chip{
      min-height:28px;
      padding:0 10px;
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,216,255,.10);
      color:var(--sub);
      font-size:12px;
    }
    .matrix-action{
      margin-top:auto;
      padding-top:18px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
    }
    .matrix-action .button{
      min-height:40px;
      padding:0 15px;
      font-size:14px;
    }
    .ghost-link{
      color:#dffcff;
      font-size:14px;
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .ghost-link::after{
      content:"→";
      transition:transform .22s var(--ease);
    }
    .ghost-link:hover::after{
      transform:translateX(4px);
    }

    .guide-grid{
      display:grid;
      gap:16px;
      grid-template-columns:repeat(4, minmax(0,1fr));
      margin-top:20px;
    }
    .guide-step{
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,216,255,.10);
      position:relative;
      overflow:hidden;
      min-height:196px;
    }
    .guide-step::before{
      content:"";
      position:absolute;
      top:0;
      left:0;
      right:0;
      height:2px;
      background:linear-gradient(90deg, rgba(33,212,253,.0), rgba(33,212,253,.9), rgba(167,139,250,.9));
      opacity:.86;
    }
    .guide-step .num{
      width:42px;height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:linear-gradient(145deg, rgba(33,212,253,.18), rgba(124,58,237,.12));
      border:1px solid rgba(79,226,255,.16);
      color:#effcff;
      font-weight:800;
      margin-bottom:14px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .guide-step h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .guide-step p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .comparison-wrap{
      margin-top:24px;
      border-radius:26px;
      overflow:hidden;
      border:1px solid rgba(148,216,255,.12);
      background:rgba(8,18,35,.58);
      backdrop-filter:blur(18px) saturate(130%);
      box-shadow:var(--shadow-soft);
    }
    .comparison-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      color:var(--text);
      font-size:14px;
    }
    .comparison-table thead th{
      text-align:left;
      padding:18px 18px;
      background:linear-gradient(180deg, rgba(33,212,253,.10), rgba(33,212,253,.03));
      color:#effcff;
      font-size:13px;
      letter-spacing:.04em;
      border-bottom:1px solid rgba(148,216,255,.10);
    }
    .comparison-table tbody td{
      padding:18px 18px;
      border-bottom:1px solid rgba(148,216,255,.08);
      color:var(--muted);
      vertical-align:top;
      background:rgba(255,255,255,.015);
    }
    .comparison-table tbody tr:hover td{
      background:rgba(33,212,253,.04);
      color:#dbeaf8;
    }
    .comparison-table tbody tr:last-child td{
      border-bottom:none;
    }
    .row-badge{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 12px;
      border-radius:999px;
      color:#dffcff;
      background:rgba(33,212,253,.08);
      border:1px solid rgba(79,226,255,.14);
      font-size:12px;
      white-space:nowrap;
    }

    .tips-grid{
      display:grid;
      gap:16px;
      grid-template-columns:repeat(2, minmax(0,1fr));
      margin-top:20px;
    }
    .tip-card{
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,216,255,.10);
    }
    .tip-card h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .tip-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .accordion.faq-accordion{
      margin-top:20px;
      background:transparent;
      border:none;
    }
    .accordion-item{
      margin-bottom:12px;
      border:none;
      border-radius:20px;
      overflow:hidden;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,216,255,.10);
      transition:border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
    }
    .accordion-item.is-active{
      border-color:rgba(79,226,255,.26);
      box-shadow:0 18px 30px rgba(33,212,253,.10);
    }
    .accordion-title{
      color:var(--text);
      font-size:17px;
      line-height:1.4;
      border:none;
      padding:18px 20px;
      background:transparent;
      position:relative;
    }
    .accordion-title:hover{
      background:rgba(255,255,255,.02);
      color:#fff;
    }
    .accordion-title::before{
      border-color:rgba(216,240,255,.65) transparent transparent;
      right:20px;
      margin-top:-2px;
    }
    .accordion-item.is-active > .accordion-title::before{
      border-color:transparent transparent rgba(216,240,255,.95);
      margin-top:-8px;
    }
    .accordion-content{
      border:none;
      color:var(--muted);
      background:rgba(9,20,37,.55);
      padding:0 20px 18px;
      font-size:15px;
      position:relative;
    }
    .accordion-content::before{
      content:"";
      position:absolute;
      left:20px;
      top:0;
      width:72px;
      height:2px;
      background:linear-gradient(90deg, rgba(33,212,253,.92), rgba(167,139,250,.96));
      border-radius:999px;
    }
    .accordion-content p{margin:16px 0 0}

    .cta-panel{
      padding:28px;
      border-radius:34px;
      background:
        radial-gradient(circle at 18% 18%, rgba(33,212,253,.18), transparent 28%),
        radial-gradient(circle at 85% 20%, rgba(124,58,237,.22), transparent 26%),
        linear-gradient(180deg, rgba(10,25,48,.88), rgba(7,17,31,.72));
      border:1px solid rgba(148,216,255,.14);
      box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.04);
      overflow:hidden;
      position:relative;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, transparent 0 48%, rgba(255,255,255,.03) 48% 49%, transparent 49% 100%),
        linear-gradient(180deg, transparent 0 48%, rgba(255,255,255,.03) 48% 49%, transparent 49% 100%);
      background-size:64px 64px;
      opacity:.18;
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .cta-copy{
      max-width:720px;
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:clamp(28px, 3.5vw, 44px);
      line-height:1.12;
    }
    .cta-copy p{
      margin:0;
      color:var(--muted);
      font-size:16px;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      flex:0 0 auto;
    }

    .site-footer{
      margin-top:56px;
      padding:56px 0 26px;
      background:linear-gradient(180deg, rgba(8,17,31,.4), rgba(4,9,16,.96));
      border-top:1px solid rgba(148,216,255,.10);
      position:relative;
      z-index:1;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr;
      gap:24px;
      align-items:start;
      padding-bottom:26px;
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
      color:var(--text);
    }
    .footer-desc{
      margin:0;
      max-width:520px;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .footer-links h3{
      margin:6px 0 14px;
      font-size:15px;
      color:#effcff;
    }
    .footer-links ul{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(2px);
    }
    .footer-links a::before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--accent), var(--accent-4));
      box-shadow:0 0 0 4px rgba(33,212,253,.08);
      flex:0 0 auto;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:18px;
      border-top:1px solid rgba(148,216,255,.10);
      color:var(--sub);
      font-size:13px;
    }

    .reveal{
      animation:fadeUp .8s var(--ease) both;
    }
    .delay-1{animation-delay:.08s}
    .delay-2{animation-delay:.16s}
    .delay-3{animation-delay:.24s}
    .delay-4{animation-delay:.32s}
    .delay-5{animation-delay:.40s}
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(16px)}
      to{opacity:1;transform:translateY(0)}
    }

    @media (max-width: 1180px){
      .search-box{width:240px}
      .matrix-card.featured{grid-column:span 12}
      .matrix-side{grid-column:span 12}
      .matrix-mini-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .guide-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    }
    @media (max-width: 1023px){
      .nav-wrap,.search-box,.header-actions .button.secondary{display:none}
      .menu-toggle{display:inline-flex}
      .hero{
        min-height:auto;
        padding-top:26px;
      }
      .hero-grid{
        gap:22px;
      }
      .player-card{
        min-height:460px;
      }
      .trust-strip{
        grid-template-columns:1fr;
      }
      .section{
        padding:84px 0;
      }
      .cta-inner,
      .section-heading{
        flex-direction:column;
        align-items:flex-start;
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
    }
    @media (max-width: 639px){
      .container-xx{
        width:min(var(--container), calc(100% - 20px));
      }
      .site-header{padding:8px 0}
      .header-inner{
        min-height:68px;
        gap:12px;
      }
      .brand-mark,
      .footer-brand .brand-mark{
        width:38px;height:38px;border-radius:12px;
      }
      .brand-text strong,
      .footer-brand strong{
        font-size:16px;
      }
      .brand-text span{display:none}
      .hero h1{
        max-width:none;
        font-size:clamp(32px, 9vw, 40px);
      }
      .hero p{
        font-size:16px;
      }
      .hero-actions .button{
        width:100%;
      }
      .player-card{
        min-height:auto;
        padding:14px;
      }
      .screen{
        min-height:auto;
        padding:14px;
      }
      .screen-inner{
        grid-template-columns:1fr;
      }
      .play-backdrop{
        min-height:230px;
      }
      .screen-cards{
        grid-template-columns:1fr 1fr;
      }
      .guide-grid,
      .tips-grid,
      .footer-grid,
      .matrix-mini-grid{
        grid-template-columns:1fr;
      }
      .issue-item{
        grid-template-columns:1fr;
      }
      .issue-index{
        width:52px;height:52px;border-radius:16px;
      }
      .comparison-table thead{
        display:none;
      }
      .comparison-table,
      .comparison-table tbody,
      .comparison-table tr,
      .comparison-table td{
        display:block;
        width:100%;
      }
      .comparison-table tbody tr{
        border-bottom:1px solid rgba(148,216,255,.10);
      }
      .comparison-table tbody td{
        padding:14px 16px;
      }
      .comparison-table tbody td::before{
        content:attr(data-label);
        display:block;
        margin-bottom:6px;
        color:#dffcff;
        font-size:12px;
        letter-spacing:.04em;
      }
      .cta-panel{
        padding:22px;
        border-radius:26px;
      }
      .cta-actions .button{
        width:100%;
      }
      .copyright{
        flex-direction:column;
      }
    }
    @media (max-width: 479px){
      .screen-cards{
        grid-template-columns:1fr;
      }
      .section{
        padding:72px 0;
      }
      .hero{
        padding-top:18px;
      }
      .nav-list{
        gap:6px;
        padding:6px;
      }
    }