/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-deep:#030812;
      --panel:rgba(13,29,50,.68);
      --panel-strong:rgba(22,49,78,.74);
      --primary:#20d6ff;
      --secondary:#7c5cff;
      --mint:#3ef4b5;
      --amber:#ffb86b;
      --text:#d8e6f3;
      --text-strong:#ffffff;
      --muted:#8ea6bb;
      --weak:#60778a;
      --border:rgba(120,210,255,.16);
      --border-strong:rgba(32,214,255,.45);
      --shadow:0 18px 60px rgba(0,0,0,.28);
      --glow:0 0 0 1px rgba(32,214,255,.14),0 24px 80px rgba(32,214,255,.08);
      --radius-lg:32px;
      --radius:24px;
      --radius-sm:16px;
      --container:1200px;
      --nav-h:74px;
      --ease:.25s ease;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      --mono:"SFMono-Regular","Consolas","Liberation Mono",monospace;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 18% 8%,rgba(32,214,255,.18),transparent 26%),
        radial-gradient(circle at 82% 16%,rgba(124,92,255,.17),transparent 28%),
        radial-gradient(circle at 50% 72%,rgba(62,244,181,.07),transparent 30%),
        linear-gradient(180deg,var(--bg-deep),var(--bg) 36%,#06101d);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background:
        linear-gradient(rgba(120,210,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(120,210,255,.035) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.18));
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.06;
      background-image:radial-gradient(rgba(255,255,255,.7) .6px,transparent .7px);
      background-size:6px 6px;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .section{padding:92px 0}
    .section-header{max-width:760px;margin-bottom:34px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--border);
      border-radius:999px;
      background:rgba(32,214,255,.08);
      color:#b9f4ff;
      font-size:13px;
      font-weight:700;
      letter-spacing:.04em;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 16px rgba(62,244,181,.8);
    }
    h1,h2,h3{color:var(--text-strong);line-height:1.18;letter-spacing:-.03em}
    h1{font-size:clamp(36px,5vw,60px);font-weight:800}
    h2{font-size:clamp(28px,3.3vw,38px);font-weight:800}
    h3{font-size:21px;font-weight:750}
    p{color:var(--muted)}
    .lead{font-size:18px;line-height:1.85;color:#b8cbdd}
    .gradient-text{
      background:linear-gradient(135deg,#fff 10%,#9eeeff 45%,#b9adff 86%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease),color var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 0 22px rgba(32,214,255,.32);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(32,214,255,.46),0 14px 34px rgba(124,92,255,.24)}
    .btn-primary:active,.btn-secondary:active{transform:translateY(0);box-shadow:none}
    .btn-secondary{
      color:#dff8ff;
      background:rgba(9,22,38,.72);
      border:1px solid var(--border-strong);
    }
    .btn-secondary:hover{transform:translateY(-2px);background:rgba(32,214,255,.12);border-color:rgba(32,214,255,.7)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
      outline:3px solid rgba(32,214,255,.36);
      outline-offset:3px;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(3,8,18,.72);
      border-bottom:1px solid rgba(120,210,255,.15);
    }
    .nav{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      color:#fff;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      position:relative;
      display:grid;place-items:center;
      color:#fff;font-weight:900;font-family:var(--mono);
      background:
        radial-gradient(circle at 35% 30%,rgba(255,255,255,.28),transparent 28%),
        linear-gradient(135deg,rgba(32,214,255,.95),rgba(124,92,255,.9));
      box-shadow:0 0 24px rgba(32,214,255,.3);
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:80%;height:40%;
      border:1px solid rgba(255,255,255,.38);
      border-left:0;border-right:0;
      transform:rotate(-20deg);
      opacity:.65;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.18}
    .brand-text small{color:var(--muted);font-size:12px;font-weight:600}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-link{
      padding:9px 13px;
      border-radius:999px;
      color:#b9cadb;
      font-size:14px;
      font-weight:700;
      transition:background var(--ease),color var(--ease),box-shadow var(--ease);
    }
    .nav-link:hover,.nav-link.active{
      color:#fff;
      background:rgba(32,214,255,.1);
      box-shadow:inset 0 0 0 1px rgba(32,214,255,.18);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mega-wrap{position:relative}
    .mega-toggle{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:9px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--border);
      color:#d5e9f8;
      font-weight:750;
      font-size:14px;
    }
    .mega-toggle:hover{border-color:var(--border-strong);background:rgba(32,214,255,.09)}
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 14px);
      width:640px;
      padding:18px;
      border:1px solid var(--border);
      border-radius:22px;
      background:rgba(6,16,30,.92);
      box-shadow:var(--shadow),0 0 50px rgba(32,214,255,.08);
      backdrop-filter:blur(18px);
      opacity:0;
      visibility:hidden;
      transform:translateY(8px);
      transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
      display:grid;
      grid-template-columns:1.2fr 1fr .95fr;
      gap:14px;
    }
    .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
    .mega-col h4{color:#fff;font-size:14px;margin-bottom:10px}
    .mega-item{
      display:block;
      padding:12px;
      border-radius:16px;
      border:1px solid transparent;
      transition:background var(--ease),border-color var(--ease),transform var(--ease);
    }
    .mega-item:hover{background:rgba(32,214,255,.08);border-color:rgba(32,214,255,.24);transform:translateX(2px)}
    .mega-item strong{display:block;color:#eaf8ff;font-size:14px}
    .mega-item span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:3px}
    .mega-cta{
      min-height:100%;
      padding:16px;
      border-radius:18px;
      background:linear-gradient(145deg,rgba(32,214,255,.14),rgba(124,92,255,.16));
      border:1px solid rgba(32,214,255,.24);
    }
    .mega-cta p{font-size:13px;margin:8px 0 14px}
    .menu-btn{
      display:none;
      width:44px;height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      border:1px solid var(--border);
      color:#fff;
    }
    .hero{
      position:relative;
      min-height:calc(100vh - var(--nav-h));
      display:flex;
      align-items:center;
      padding:78px 0 70px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(3,8,18,.9),rgba(3,8,18,.54),rgba(3,8,18,.86)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.72;
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:10% -10% auto auto;
      width:620px;height:620px;
      background:radial-gradient(circle,rgba(32,214,255,.18),transparent 62%);
      filter:blur(8px);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1fr 1.08fr;
      gap:48px;
      align-items:center;
    }
    .hero-content h1{margin:18px 0 20px;max-width:660px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 24px}
    .trust-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid var(--border);
      background:rgba(13,29,50,.56);
      color:#c7d9e9;
      font-size:13px;
      font-weight:650;
    }
    .tag::before{
      content:"";
      width:6px;height:6px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 10px rgba(32,214,255,.7);
    }
    .dashboard{
      position:relative;
      padding:20px;
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(13,29,50,.78),rgba(7,17,31,.64));
      border:1px solid var(--border);
      box-shadow:var(--shadow),var(--glow);
      backdrop-filter:blur(18px);
      overflow:hidden;
    }
    .dashboard::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(120deg,rgba(255,255,255,.13),transparent 20%,transparent 78%,rgba(32,214,255,.09));
      pointer-events:none;
    }
    .panel-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      padding:8px 8px 18px;
      border-bottom:1px solid rgba(120,210,255,.13);
      position:relative;
    }
    .status{display:flex;align-items:center;gap:8px;color:#cfefff;font-weight:750;font-size:14px}
    .status i{width:10px;height:10px;border-radius:50%;background:var(--mint);box-shadow:0 0 16px rgba(62,244,181,.85)}
    .panel-code{font-family:var(--mono);font-size:12px;color:var(--weak)}
    .dashboard-body{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:18px;position:relative}
    .metric{
      min-height:128px;
      padding:18px;
      border:1px solid rgba(120,210,255,.14);
      border-radius:22px;
      background:rgba(2,9,18,.34);
      position:relative;
      overflow:hidden;
    }
    .metric:nth-child(2){transform:translateY(16px)}
    .metric:nth-child(3){transform:translateY(-4px)}
    .metric strong{
      display:block;
      font-family:var(--mono);
      font-size:30px;
      color:#fff;
      line-height:1;
      margin:10px 0;
    }
    .metric span{color:var(--muted);font-size:13px}
    .wave{
      grid-column:1/-1;
      min-height:168px;
      border-radius:24px;
      border:1px solid rgba(120,210,255,.16);
      background:
        linear-gradient(180deg,rgba(32,214,255,.08),transparent),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
      position:relative;
      overflow:hidden;
    }
    .wave::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(3,8,18,.9),rgba(3,8,18,.28),rgba(3,8,18,.82));
    }
    .wave svg{position:absolute;inset:auto 18px 28px 18px;width:calc(100% - 36px);height:88px;filter:drop-shadow(0 0 12px rgba(32,214,255,.45))}
    .log-list{grid-column:1/-1;display:grid;gap:9px}
    .log{
      display:flex;justify-content:space-between;gap:10px;
      padding:11px 14px;border-radius:14px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(120,210,255,.1);
      color:#a9bbcd;font-size:13px;
    }
    .log b{color:#dff9ff;font-weight:750}
    .stats-grid{
      display:grid;
      grid-template-columns:1.08fr .92fr 1fr .9fr;
      gap:18px;
      align-items:start;
    }
    .stat-card,.glass-card{
      position:relative;
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:var(--panel);
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
      overflow:hidden;
    }
    .stat-card::before,.glass-card::before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent);
    }
    .stat-card:hover,.glass-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow),var(--glow)}
    .stat-card{padding:24px;min-height:172px}
    .stat-card:nth-child(2){margin-top:34px}
    .stat-card:nth-child(4){margin-top:18px}
    .stat-label{display:flex;justify-content:space-between;gap:10px;color:#bcd3e5;font-size:14px;font-weight:750}
    .stat-num{display:block;font-family:var(--mono);font-size:36px;color:#fff;font-weight:800;margin:16px 0 8px}
    .service-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:42px;
      align-items:center;
    }
    .sticky-note{
      padding:32px;
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(13,29,50,.78),rgba(8,16,30,.45));
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .sticky-note p{margin:18px 0 24px}
    .matrix{
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:16px;
      position:relative;
    }
    .matrix::before{
      content:"";
      position:absolute;
      inset:14px;
      border:1px dashed rgba(32,214,255,.16);
      border-radius:28px;
      pointer-events:none;
    }
    .matrix-card{
      padding:24px;
      min-height:180px;
      border-radius:24px;
      border:1px solid var(--border);
      background:rgba(13,29,50,.58);
      position:relative;
      overflow:hidden;
      transition:transform var(--ease),border-color var(--ease),background var(--ease);
    }
    .matrix-card:hover{transform:translateY(-4px);border-color:var(--border-strong);background:rgba(22,49,78,.72)}
    .matrix-card.large{grid-row:span 2;min-height:376px;background:linear-gradient(180deg,rgba(32,214,255,.12),rgba(13,29,50,.58))}
    .matrix-card h3{margin:14px 0 10px}
    .icon-dot{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:rgba(32,214,255,.12);
      border:1px solid rgba(32,214,255,.2);
      color:#bff5ff;
      font-weight:900;
    }
    .card-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
    .mini-tag{
      color:#9fe9ff;
      font-size:12px;
      padding:5px 9px;
      border-radius:999px;
      background:rgba(32,214,255,.08);
      border:1px solid rgba(32,214,255,.13);
    }
    .compare-wrap{
      padding:32px;
      border-radius:var(--radius-lg);
      border:1px solid var(--border);
      background:
        radial-gradient(circle at 75% 35%,rgba(32,214,255,.13),transparent 36%),
        rgba(7,17,31,.62);
      box-shadow:var(--shadow);
    }
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
    .compare-card{padding:28px;border-radius:26px;border:1px solid rgba(120,210,255,.13);background:rgba(3,8,18,.46)}
    .compare-card.recommended{border-color:rgba(32,214,255,.42);background:linear-gradient(145deg,rgba(32,214,255,.12),rgba(22,49,78,.52));box-shadow:0 0 45px rgba(32,214,255,.08)}
    .compare-card h3{margin-bottom:18px}
    .compare-list{list-style:none;display:grid;gap:13px}
    .compare-list li{display:flex;gap:10px;align-items:flex-start;color:#b9ccde}
    .mark{
      width:22px;height:22px;flex:0 0 22px;border-radius:50%;
      display:grid;place-items:center;font-size:12px;font-weight:900;
      margin-top:3px;
    }
    .bad{background:rgba(255,184,107,.12);color:var(--amber);border:1px solid rgba(255,184,107,.28)}
    .good{background:rgba(62,244,181,.12);color:var(--mint);border:1px solid rgba(62,244,181,.28)}
    .featured-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
    }
    .feature-card{
      min-height:380px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      position:relative;
      border:1px solid var(--border);
      background:#07111f;
      box-shadow:var(--shadow);
    }
    .feature-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
    .feature-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,8,18,.2),rgba(3,8,18,.9))}
    .feature-content{position:absolute;inset:auto 0 0;padding:30px;z-index:1}
    .feature-content h3{font-size:28px;margin:12px 0}
    .small-entries{display:grid;gap:14px}
    .entry-card{
      display:flex;gap:14px;align-items:center;
      padding:16px;border-radius:22px;
      border:1px solid var(--border);
      background:rgba(13,29,50,.62);
      transition:transform var(--ease),border-color var(--ease);
    }
    .entry-card:hover{transform:translateX(4px);border-color:var(--border-strong)}
    .entry-thumb{
      width:86px;height:74px;flex:0 0 86px;border-radius:16px;overflow:hidden;background:linear-gradient(135deg,rgba(32,214,255,.2),rgba(124,92,255,.18));
    }
    .entry-thumb img{width:100%;height:100%;object-fit:cover}
    .entry-card h3{font-size:18px;margin-bottom:4px}
    .entry-card p{font-size:13px;line-height:1.55}
    .faq-grid{display:grid;gap:14px}
    details.faq-item{
      border:1px solid var(--border);
      border-radius:20px;
      background:rgba(13,29,50,.62);
      overflow:hidden;
      transition:border-color var(--ease),background var(--ease);
    }
    details.faq-item[open]{border-color:rgba(32,214,255,.42);background:rgba(22,49,78,.62);box-shadow:inset 3px 0 0 rgba(32,214,255,.8)}
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 24px;
      color:#fff;
      font-weight:800;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(32,214,255,.1);
      color:#bff6ff;
      flex:0 0 28px;
      transition:transform var(--ease),background var(--ease);
    }
    .faq-item[open] summary::after{content:"−";background:rgba(32,214,255,.2);transform:rotate(180deg)}
    .faq-item p{padding:0 24px 22px;color:#aec2d3}
    .contact-panel{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:28px;
      padding:34px;
      border-radius:var(--radius-lg);
      border:1px solid var(--border);
      background:
        linear-gradient(135deg,rgba(32,214,255,.12),rgba(124,92,255,.11) 42%,rgba(13,29,50,.64)),
        rgba(7,17,31,.72);
      box-shadow:var(--shadow),var(--glow);
      position:relative;
      overflow:hidden;
    }
    .contact-panel::before{
      content:"";
      position:absolute;
      right:-80px;top:-90px;width:280px;height:280px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(32,214,255,.22),transparent 66%);
    }
    .benefits{list-style:none;margin-top:24px;display:grid;gap:12px}
    .benefits li{display:flex;gap:10px;color:#c7d8e7}
    .benefits li::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 12px rgba(62,244,181,.75);margin-top:11px;flex:0 0 9px}
    .form-card{
      padding:24px;
      border-radius:26px;
      border:1px solid rgba(120,210,255,.17);
      background:rgba(3,8,18,.46);
      position:relative;
      z-index:1;
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field.full{grid-column:1/-1}
    label{display:block;color:#cfe5f6;font-size:13px;font-weight:750;margin-bottom:7px}
    input,select,textarea{
      width:100%;
      color:#eaf7ff;
      background:rgba(7,17,31,.82);
      border:1px solid rgba(120,210,255,.16);
      border-radius:15px;
      padding:13px 14px;
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    textarea{min-height:110px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#60778a}
    input:focus,select:focus,textarea:focus{border-color:rgba(32,214,255,.68);box-shadow:0 0 0 4px rgba(32,214,255,.1);background:rgba(10,24,42,.92);outline:0}
    .site-footer{
      padding:56px 0 26px;
      background:linear-gradient(180deg,rgba(3,8,18,.38),var(--bg-deep));
      border-top:1px solid rgba(120,210,255,.12);
      position:relative;
      overflow:hidden;
    }
    .site-footer::before{
      content:"";
      position:absolute;left:0;right:0;top:0;height:70px;
      background:repeating-linear-gradient(90deg,transparent 0 18px,rgba(32,214,255,.12) 19px,transparent 20px);
      opacity:.13;
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr .9fr;gap:28px;position:relative}
    .footer-title{color:#fff;font-weight:800;margin-bottom:12px}
    .footer-links{list-style:none;display:grid;gap:9px}
    .footer-links a{color:#92a8bb;font-size:14px;transition:color var(--ease),transform var(--ease)}
    .footer-links a:hover{color:#bff6ff;transform:translateX(3px)}
    .footer-desc{margin-top:14px;max-width:360px}
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(120,210,255,.1);
      color:#6f8497;
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .nav-links,.nav-actions{display:none}
      .menu-btn{display:grid;place-items:center}
      .nav.menu-open{height:auto;align-items:flex-start;padding:14px 0;flex-wrap:wrap}
      .nav.menu-open .nav-links,.nav.menu-open .nav-actions{
        display:flex;
        width:100%;
        flex-direction:column;
        align-items:stretch;
      }
      .nav.menu-open .nav-link,.nav.menu-open .mega-toggle,.nav.menu-open .btn{width:100%;justify-content:center}
      .nav.menu-open .mega-panel{
        position:static;width:100%;opacity:1;visibility:visible;transform:none;
        grid-template-columns:1fr;margin-top:10px;
      }
      .hero-grid,.service-layout,.contact-panel{grid-template-columns:1fr}
      .stats-grid{grid-template-columns:1fr 1fr}
      .featured-grid,.compare-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .section{padding:62px 0}
      .hero{padding:54px 0 60px}
      .dashboard-body,.stats-grid,.matrix{grid-template-columns:1fr}
      .metric:nth-child(2),.metric:nth-child(3),.stat-card:nth-child(2),.stat-card:nth-child(4){transform:none;margin-top:0}
      .matrix-card.large{grid-row:auto;min-height:220px}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .contact-panel,.compare-wrap{padding:22px}
    }
    @media (max-width:520px){
      :root{--nav-h:64px}
      .brand-mark{width:38px;height:38px}
      .brand-text strong{font-size:15px}
      .brand-text small{display:none}
      .hero-actions,.btn{width:100%}
      .entry-card{align-items:flex-start}
      .entry-thumb{width:72px;height:66px;flex-basis:72px}
      .feature-content{padding:22px}
      .feature-card{min-height:330px}
    }

/* roulang page: category1 */
:root {
      --bg: #07111f;
      --bg-deep: #030812;
      --bg-soft: #0b1829;
      --card: rgba(13, 29, 50, 0.68);
      --card-strong: rgba(22, 49, 78, 0.76);
      --primary: #20d6ff;
      --secondary: #7c5cff;
      --mint: #3ef4b5;
      --amber: #ffb86b;
      --text: #d8e6f3;
      --text-strong: #f4fbff;
      --muted: #8ea6bb;
      --weak: #60778a;
      --border: rgba(120, 210, 255, 0.16);
      --border-strong: rgba(32, 214, 255, 0.45);
      --shadow: 0 18px 60px rgba(0, 0, 0, 0.32);
      --glow: 0 0 0 1px rgba(32, 214, 255, 0.14), 0 24px 80px rgba(32, 214, 255, 0.10);
      --radius-lg: 32px;
      --radius-md: 24px;
      --radius-sm: 16px;
      --container: 1180px;
      --transition: 180ms ease;
      --font: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      font-family: var(--font);
      line-height: 1.75;
      background:
        radial-gradient(circle at 16% 14%, rgba(32, 214, 255, 0.16), transparent 28%),
        radial-gradient(circle at 78% 22%, rgba(124, 92, 255, 0.18), transparent 30%),
        radial-gradient(circle at 50% 78%, rgba(62, 244, 181, 0.08), transparent 34%),
        linear-gradient(180deg, #030812 0%, #07111f 45%, #08101c 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -2;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(120, 210, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120, 210, 255, 0.045) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,0.35), rgba(0,0,0,0.75));
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      opacity: 0.05;
      background:
        repeating-linear-gradient(0deg, rgba(255,255,255,0.14) 0, rgba(255,255,255,0.14) 1px, transparent 1px, transparent 5px);
      mix-blend-mode: screen;
    }

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

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

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

    button {
      cursor: pointer;
    }

    ::selection {
      color: #03111d;
      background: var(--primary);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid rgba(120, 210, 255, 0.14);
      background: rgba(3, 8, 18, 0.72);
      backdrop-filter: blur(18px);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.24);
    }

    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      position: relative;
    }

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

    .brand-mark {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 15px;
      color: #ffffff;
      font-weight: 900;
      letter-spacing: -0.04em;
      background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,0.52), transparent 22%),
        linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 0 28px rgba(32, 214, 255, 0.28);
      position: relative;
      overflow: hidden;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px -10px;
      border-top: 1px solid rgba(255,255,255,0.55);
      border-bottom: 1px solid rgba(255,255,255,0.22);
      transform: rotate(-22deg);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
      white-space: nowrap;
    }

    .brand-text strong {
      color: var(--text-strong);
      font-size: 15px;
      letter-spacing: 0.01em;
    }

    .brand-text small {
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
    }

    .nav-link {
      position: relative;
      padding: 10px 14px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 600;
      transition: color var(--transition), background var(--transition), transform var(--transition);
    }

    .nav-link:hover,
    .nav-link:focus-visible,
    .nav-link.active {
      color: var(--text-strong);
      background: rgba(32, 214, 255, 0.10);
      outline: none;
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 5px;
      height: 2px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      box-shadow: 0 0 12px rgba(32, 214, 255, 0.55);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 10px 18px;
      border: 1px solid transparent;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      line-height: 1.2;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
      user-select: none;
    }

    .btn-primary {
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 0 22px rgba(32, 214, 255, 0.26);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(32, 214, 255, 0.42), 0 16px 38px rgba(124, 92, 255, 0.18);
      outline: none;
    }

    .btn-secondary {
      color: var(--text-strong);
      border-color: rgba(32, 214, 255, 0.28);
      background: rgba(13, 29, 50, 0.72);
    }

    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      transform: translateY(-2px);
      border-color: var(--border-strong);
      background: rgba(32, 214, 255, 0.12);
      box-shadow: 0 0 20px rgba(32, 214, 255, 0.16);
      outline: none;
    }

    .btn:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .mega-wrap {
      position: relative;
    }

    .mega-toggle {
      min-height: 42px;
      padding: 10px 15px;
      border: 1px solid rgba(120, 210, 255, 0.14);
      border-radius: 999px;
      color: var(--muted);
      background: rgba(13, 29, 50, 0.48);
      transition: all var(--transition);
    }

    .mega-toggle:hover,
    .mega-toggle:focus-visible {
      color: var(--text-strong);
      border-color: var(--border-strong);
      background: rgba(32, 214, 255, 0.10);
      outline: none;
    }

    .mega-panel {
      position: absolute;
      top: calc(100% + 14px);
      right: 0;
      width: min(760px, calc(100vw - 40px));
      display: grid;
      grid-template-columns: 1fr 1fr 1.05fr;
      gap: 14px;
      padding: 18px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(5, 14, 27, 0.94);
      backdrop-filter: blur(20px);
      box-shadow: var(--shadow), 0 0 44px rgba(32, 214, 255, 0.10);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: all var(--transition);
    }

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

    .mega-col h4,
    .mega-cta h4 {
      margin: 0 0 10px;
      color: var(--text-strong);
      font-size: 14px;
    }

    .mega-item {
      display: block;
      padding: 12px;
      border-radius: 16px;
      border: 1px solid transparent;
      transition: all var(--transition);
    }

    .mega-item strong {
      display: block;
      color: var(--text);
      font-size: 14px;
      margin-bottom: 4px;
    }

    .mega-item span,
    .mega-cta p {
      display: block;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .mega-item:hover,
    .mega-item:focus-visible {
      border-color: rgba(32, 214, 255, 0.24);
      background: rgba(32, 214, 255, 0.08);
      outline: none;
    }

    .mega-cta {
      padding: 14px;
      border: 1px solid rgba(32, 214, 255, 0.20);
      border-radius: 20px;
      background:
        radial-gradient(circle at 20% 20%, rgba(32, 214, 255, 0.18), transparent 36%),
        rgba(13, 29, 50, 0.72);
    }

    .mega-cta .btn {
      width: 100%;
      margin-top: 12px;
      min-height: 38px;
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid rgba(120, 210, 255, 0.18);
      border-radius: 14px;
      color: var(--text-strong);
      background: rgba(13, 29, 50, 0.66);
    }

    .menu-btn:focus-visible {
      outline: 3px solid rgba(32, 214, 255, 0.36);
      outline-offset: 2px;
    }

    .section {
      padding: 86px 0;
      position: relative;
    }

    .section-tight {
      padding: 58px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      padding: 7px 12px;
      border: 1px solid rgba(32, 214, 255, 0.22);
      border-radius: 999px;
      color: var(--primary);
      background: rgba(32, 214, 255, 0.08);
      font-size: 13px;
      font-weight: 800;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 12px rgba(62, 244, 181, 0.6);
    }

    .hero-category {
      padding: 76px 0 52px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(120, 210, 255, 0.10);
      background:
        linear-gradient(180deg, rgba(3, 8, 18, 0.62), rgba(7, 17, 31, 0.94)),
        linear-gradient(90deg, rgba(3, 8, 18, 0.92), rgba(3, 8, 18, 0.60)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }

    .hero-category::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        radial-gradient(circle at 78% 28%, rgba(32, 214, 255, 0.20), transparent 28%),
        radial-gradient(circle at 28% 78%, rgba(124, 92, 255, 0.16), transparent 34%);
    }

    .hero-category::after {
      content: "";
      position: absolute;
      right: 9%;
      top: 24%;
      width: 360px;
      height: 150px;
      opacity: 0.26;
      border: 1px solid rgba(32, 214, 255, 0.26);
      border-radius: 999px;
      transform: rotate(-12deg);
      filter: blur(0.2px);
      background:
        repeating-radial-gradient(ellipse at center, transparent 0 14px, rgba(32,214,255,0.22) 15px 16px);
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 44px;
      align-items: end;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 18px;
      color: var(--muted);
      font-size: 13px;
    }

    .breadcrumb a {
      color: var(--primary);
      transition: color var(--transition);
    }

    .breadcrumb a:hover,
    .breadcrumb a:focus-visible {
      color: var(--text-strong);
      outline: none;
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      margin-bottom: 20px;
      max-width: 820px;
      color: var(--text-strong);
      font-size: clamp(32px, 5vw, 48px);
      line-height: 1.14;
      letter-spacing: -0.04em;
    }

    .hero-lead {
      max-width: 760px;
      margin-bottom: 26px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .hero-panel {
      padding: 22px;
      border: 1px solid rgba(32, 214, 255, 0.22);
      border-radius: 26px;
      background: rgba(5, 14, 27, 0.64);
      backdrop-filter: blur(18px);
      box-shadow: var(--glow);
    }

    .panel-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 18px;
      color: var(--text-strong);
      font-weight: 800;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 5px 9px;
      border-radius: 999px;
      color: var(--mint);
      background: rgba(62, 244, 181, 0.08);
      font-size: 12px;
      font-weight: 800;
    }

    .status-pill::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: currentColor;
      box-shadow: 0 0 10px currentColor;
    }

    .mini-wave {
      height: 72px;
      border: 1px solid rgba(120, 210, 255, 0.14);
      border-radius: 18px;
      background:
        linear-gradient(90deg, transparent 0 8%, rgba(32,214,255,0.16) 8% 9%, transparent 9% 100%),
        repeating-linear-gradient(90deg, rgba(120,210,255,0.07) 0 1px, transparent 1px 22px),
        rgba(13,29,50,0.48);
      position: relative;
      overflow: hidden;
    }

    .mini-wave::before {
      content: "";
      position: absolute;
      left: -10%;
      right: -10%;
      top: 18px;
      height: 36px;
      background:
        radial-gradient(ellipse at center, transparent 0 36%, rgba(32, 214, 255, 0.85) 37% 39%, transparent 40%),
        radial-gradient(ellipse at center, transparent 0 49%, rgba(124, 92, 255, 0.75) 50% 52%, transparent 53%);
      background-size: 120px 44px, 170px 50px;
      animation: waveMove 8s linear infinite;
    }

    @keyframes waveMove {
      from { transform: translateX(0); }
      to { transform: translateX(120px); }
    }

    .panel-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 14px;
    }

    .panel-metric {
      padding: 12px;
      border-radius: 16px;
      background: rgba(13, 29, 50, 0.58);
      border: 1px solid rgba(120, 210, 255, 0.12);
    }

    .panel-metric strong {
      display: block;
      color: var(--text-strong);
      font-family: var(--mono);
      font-size: 18px;
      line-height: 1.2;
    }

    .panel-metric span {
      color: var(--muted);
      font-size: 12px;
    }

    .filter-bar {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      padding: 18px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(13, 29, 50, 0.48);
      backdrop-filter: blur(16px);
      box-shadow: var(--shadow);
    }

    .filter-label {
      color: var(--text-strong);
      font-weight: 800;
      margin-right: 4px;
    }

    .filter-chip,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 32px;
      padding: 6px 12px;
      border-radius: 999px;
      border: 1px solid rgba(120, 210, 255, 0.16);
      color: var(--muted);
      background: rgba(5, 14, 27, 0.48);
      font-size: 13px;
      font-weight: 700;
      transition: all var(--transition);
    }

    .filter-chip.active,
    .filter-chip:hover,
    .filter-chip:focus-visible,
    .tag:hover,
    .tag:focus-visible {
      color: var(--text-strong);
      border-color: var(--border-strong);
      background: rgba(32, 214, 255, 0.10);
      box-shadow: 0 0 18px rgba(32, 214, 255, 0.12);
      outline: none;
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 326px;
      gap: 28px;
      align-items: start;
    }

    .feature-card {
      position: relative;
      overflow: hidden;
      min-height: 360px;
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 0;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: var(--card);
      box-shadow: var(--shadow);
      backdrop-filter: blur(16px);
    }

    .feature-copy {
      padding: 34px;
      position: relative;
      z-index: 1;
    }

    .feature-copy h2 {
      margin-bottom: 14px;
      color: var(--text-strong);
      font-size: clamp(26px, 3vw, 36px);
      line-height: 1.22;
      letter-spacing: -0.03em;
    }

    .feature-copy p {
      color: var(--muted);
      margin-bottom: 20px;
    }

    .feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 24px;
    }

    .feature-media {
      min-height: 100%;
      position: relative;
      overflow: hidden;
    }

    .feature-media img {
      width: 100%;
      height: 100%;
      min-height: 360px;
      object-fit: cover;
      filter: saturate(1.06) contrast(1.05);
    }

    .feature-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(13,29,50,0.90), rgba(13,29,50,0.10)),
        radial-gradient(circle at 68% 30%, rgba(32,214,255,0.20), transparent 28%);
    }

    .info-flow {
      display: grid;
      gap: 14px;
      margin-top: 20px;
    }

    .flow-item {
      display: grid;
      grid-template-columns: 92px minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 16px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(13, 29, 50, 0.52);
      backdrop-filter: blur(16px);
      transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
    }

    .flow-item:hover,
    .flow-item:focus-within {
      transform: translateY(-3px);
      border-color: var(--border-strong);
      background: rgba(22, 49, 78, 0.62);
      box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
    }

    .flow-thumb {
      width: 92px;
      height: 76px;
      overflow: hidden;
      border-radius: 18px;
      border: 1px solid rgba(120, 210, 255, 0.14);
      background: linear-gradient(135deg, rgba(32,214,255,0.18), rgba(124,92,255,0.16));
    }

    .flow-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .flow-content h3 {
      margin: 0 0 7px;
      color: var(--text-strong);
      font-size: 19px;
      line-height: 1.35;
      transition: color var(--transition);
    }

    .flow-item:hover h3 {
      color: var(--primary);
    }

    .flow-content p {
      margin-bottom: 10px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .flow-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
    }

    .small-tag {
      display: inline-flex;
      padding: 3px 8px;
      border-radius: 999px;
      color: var(--muted);
      background: rgba(120, 210, 255, 0.08);
      font-size: 12px;
      font-weight: 700;
    }

    .flow-arrow {
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary);
      background: rgba(32, 214, 255, 0.08);
      transition: transform var(--transition), background var(--transition);
    }

    .flow-item:hover .flow-arrow {
      transform: translateX(4px);
      background: rgba(32, 214, 255, 0.14);
    }

    .sidebar {
      position: sticky;
      top: 100px;
      display: grid;
      gap: 16px;
    }

    .side-card {
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(5, 14, 27, 0.66);
      backdrop-filter: blur(16px);
      box-shadow: 0 16px 44px rgba(0, 0, 0, 0.22);
    }

    .side-card.highlight {
      border-color: rgba(32, 214, 255, 0.28);
      background:
        radial-gradient(circle at 10% 8%, rgba(32, 214, 255, 0.18), transparent 42%),
        rgba(13, 29, 50, 0.72);
    }

    .side-card h3 {
      margin-bottom: 12px;
      color: var(--text-strong);
      font-size: 18px;
    }

    .side-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 15px;
    }

    .side-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 10px;
    }

    .side-list a,
    .side-list span {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 12px;
      border-radius: 14px;
      color: var(--muted);
      background: rgba(120, 210, 255, 0.055);
      transition: all var(--transition);
    }

    .side-list a:hover,
    .side-list a:focus-visible {
      color: var(--text-strong);
      background: rgba(32, 214, 255, 0.11);
      outline: none;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 32px;
    }

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

    .section-head h2 {
      margin-bottom: 14px;
      color: var(--text-strong);
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.22;
      letter-spacing: -0.03em;
    }

    .section-head p {
      color: var(--muted);
      font-size: 16px;
    }

    .path-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .path-card {
      position: relative;
      padding: 24px;
      min-height: 220px;
      border: 1px solid var(--border);
      border-radius: 26px;
      background: rgba(13, 29, 50, 0.56);
      overflow: hidden;
      transition: all var(--transition);
    }

    .path-card::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: 0;
      background: radial-gradient(circle at 20% 16%, rgba(32, 214, 255, 0.18), transparent 38%);
      transition: opacity var(--transition);
    }

    .path-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--glow);
    }

    .path-card:hover::before {
      opacity: 1;
    }

    .path-num {
      position: relative;
      z-index: 1;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      margin-bottom: 18px;
      border-radius: 15px;
      color: #ffffff;
      font-family: var(--mono);
      font-weight: 900;
      background: linear-gradient(135deg, rgba(32,214,255,0.90), rgba(124,92,255,0.86));
      box-shadow: 0 0 20px rgba(32, 214, 255, 0.20);
    }

    .path-card h3,
    .path-card p {
      position: relative;
      z-index: 1;
    }

    .path-card h3 {
      color: var(--text-strong);
      font-size: 20px;
      margin-bottom: 10px;
    }

    .path-card p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-list {
      display: grid;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }

    details.faq-item {
      border: 1px solid var(--border);
      border-radius: 22px;
      background: rgba(13, 29, 50, 0.56);
      backdrop-filter: blur(16px);
      overflow: hidden;
      transition: all var(--transition);
    }

    details.faq-item[open] {
      border-color: rgba(32, 214, 255, 0.36);
      background: rgba(22, 49, 78, 0.62);
      box-shadow: 0 0 0 1px rgba(32, 214, 255, 0.05), 0 18px 46px rgba(0,0,0,0.20);
    }

    .faq-item summary {
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 22px;
      color: var(--text-strong);
      font-weight: 800;
      cursor: pointer;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "+";
      flex: 0 0 auto;
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary);
      background: rgba(32, 214, 255, 0.10);
      font-size: 20px;
      line-height: 1;
      transition: transform var(--transition), background var(--transition);
    }

    .faq-item[open] summary::after {
      content: "−";
      transform: rotate(180deg);
      background: rgba(32, 214, 255, 0.16);
    }

    .faq-body {
      padding: 0 22px 22px;
      color: var(--muted);
      border-left: 3px solid rgba(32, 214, 255, 0.5);
      margin-left: 22px;
      margin-bottom: 18px;
    }

    .cta-banner {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 28px;
      align-items: center;
      padding: 36px;
      border: 1px solid rgba(32, 214, 255, 0.24);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(32,214,255,0.16), rgba(124,92,255,0.14)),
        rgba(5, 14, 27, 0.76);
      box-shadow: var(--glow);
    }

    .cta-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: 0.22;
      background:
        repeating-radial-gradient(ellipse at 12% 48%, transparent 0 18px, rgba(32,214,255,0.18) 19px 20px);
      pointer-events: none;
    }

    .cta-banner h2,
    .cta-banner p,
    .cta-banner .btn {
      position: relative;
      z-index: 1;
    }

    .cta-banner h2 {
      margin-bottom: 10px;
      color: var(--text-strong);
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
    }

    .cta-banner p {
      margin-bottom: 0;
      color: var(--muted);
      max-width: 700px;
    }

    .contact-card {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 28px;
      align-items: stretch;
      padding: 28px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 8% 10%, rgba(32, 214, 255, 0.14), transparent 30%),
        rgba(13, 29, 50, 0.56);
      backdrop-filter: blur(16px);
    }

    .contact-info {
      padding: 8px;
    }

    .contact-info h2 {
      color: var(--text-strong);
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
      margin-bottom: 14px;
    }

    .contact-info p {
      color: var(--muted);
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 22px 0 0;
      display: grid;
      gap: 12px;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text);
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      display: grid;
      place-items: center;
      margin-top: 3px;
      border-radius: 50%;
      color: #03111d;
      background: var(--mint);
      font-size: 13px;
      font-weight: 900;
    }

    .contact-form {
      display: grid;
      gap: 14px;
      padding: 22px;
      border: 1px solid rgba(120, 210, 255, 0.14);
      border-radius: 24px;
      background: rgba(5, 14, 27, 0.52);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .field {
      display: grid;
      gap: 8px;
    }

    .field label {
      color: var(--text);
      font-size: 13px;
      font-weight: 800;
    }

    .field input,
    .field select,
    .field textarea {
      width: 100%;
      border: 1px solid rgba(120, 210, 255, 0.16);
      border-radius: 16px;
      color: var(--text-strong);
      background: rgba(13, 29, 50, 0.72);
      padding: 13px 14px;
      outline: none;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .field textarea {
      min-height: 112px;
      resize: vertical;
    }

    .field input::placeholder,
    .field textarea::placeholder {
      color: var(--weak);
    }

    .field input:focus,
    .field select:focus,
    .field textarea:focus {
      border-color: var(--border-strong);
      background: rgba(22, 49, 78, 0.72);
      box-shadow: 0 0 0 4px rgba(32, 214, 255, 0.10);
    }

    .form-note {
      margin: 0;
      color: var(--weak);
      font-size: 12px;
      line-height: 1.6;
    }

    .site-footer {
      padding: 58px 0 26px;
      border-top: 1px solid rgba(120, 210, 255, 0.12);
      background:
        linear-gradient(180deg, rgba(3, 8, 18, 0.48), rgba(3, 8, 18, 0.96)),
        #030812;
      position: relative;
      overflow: hidden;
    }

    .site-footer::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(32,214,255,0.62), rgba(124,92,255,0.42), transparent);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr 0.7fr 0.8fr 0.85fr;
      gap: 34px;
      align-items: start;
    }

    .footer-desc {
      max-width: 390px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-title {
      margin-bottom: 14px;
      color: var(--text-strong);
      font-weight: 900;
    }

    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 9px;
    }

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

    .footer-links a:hover,
    .footer-links a:focus-visible {
      display: inline-block;
      color: var(--primary);
      transform: translateX(3px);
      outline: none;
    }

    .copyright {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin-top: 38px;
      padding-top: 22px;
      border-top: 1px solid rgba(120, 210, 255, 0.10);
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .nav-actions .btn-secondary {
        display: none;
      }

      .hero-inner {
        grid-template-columns: 1fr;
        align-items: start;
      }

      .hero-panel {
        max-width: 520px;
      }

      .content-layout {
        grid-template-columns: 1fr;
      }

      .sidebar {
        position: static;
        grid-template-columns: repeat(3, 1fr);
      }

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

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

    @media (max-width: 880px) {
      .container {
        width: min(100% - 30px, var(--container));
      }

      .nav {
        min-height: 66px;
      }

      .menu-btn {
        display: grid;
        place-items: center;
      }

      .nav-links,
      .nav-actions {
        position: absolute;
        left: 0;
        right: 0;
        top: calc(100% + 1px);
        display: none;
        padding: 14px;
        border: 1px solid rgba(120, 210, 255, 0.14);
        background: rgba(3, 8, 18, 0.96);
        backdrop-filter: blur(18px);
      }

      .nav-links {
        border-radius: 0 0 22px 22px;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
      }

      .nav-actions {
        top: calc(100% + 118px);
        border-radius: 22px;
        flex-direction: column;
        align-items: stretch;
      }

      .nav.is-open .nav-links,
      .nav.is-open .nav-actions {
        display: flex;
      }

      .nav-link,
      .mega-toggle,
      .nav-actions .btn {
        width: 100%;
        justify-content: center;
        min-height: 44px;
      }

      .mega-wrap {
        width: 100%;
      }

      .mega-panel {
        position: static;
        width: 100%;
        margin-top: 10px;
        grid-template-columns: 1fr;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
      }

      .mega-wrap:focus-within .mega-panel,
      .mega-wrap:hover .mega-panel {
        display: grid;
      }

      .hero-category {
        padding-top: 52px;
      }

      .feature-card {
        grid-template-columns: 1fr;
      }

      .feature-media {
        order: -1;
      }

      .feature-media img {
        min-height: 220px;
      }

      .feature-media::after {
        background: linear-gradient(180deg, rgba(13,29,50,0.08), rgba(13,29,50,0.90));
      }

      .flow-item {
        grid-template-columns: 78px minmax(0, 1fr);
      }

      .flow-thumb {
        width: 78px;
        height: 68px;
      }

      .flow-arrow {
        display: none;
      }

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

      .cta-banner,
      .contact-card {
        grid-template-columns: 1fr;
      }

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

    @media (max-width: 620px) {
      .brand-text small {
        display: none;
      }

      .brand-mark {
        width: 40px;
        height: 40px;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding: 38px 0;
      }

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

      .hero-actions .btn,
      .filter-chip {
        width: 100%;
      }

      .feature-copy,
      .cta-banner,
      .contact-card {
        padding: 22px;
      }

      .flow-item {
        grid-template-columns: 1fr;
      }

      .flow-thumb {
        width: 100%;
        height: 150px;
      }

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

      .form-row {
        grid-template-columns: 1fr;
      }

      .contact-form {
        padding: 16px;
      }

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

      .copyright {
        flex-direction: column;
        align-items: flex-start;
      }
    }