/* roulang page: index */
:root{
      --bg:#070A12;
      --bg-2:#0B1020;
      --bg-3:#101624;
      --panel:rgba(15,23,42,.68);
      --panel-strong:rgba(15,23,42,.86);
      --panel-soft:rgba(30,41,59,.52);
      --line:rgba(148,163,184,.16);
      --line-strong:rgba(217,70,239,.45);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --blue:#2563EB;
      --blue-2:#1E5BFF;
      --purple:#D946EF;
      --purple-2:#C026D3;
      --gold:#F5B971;
      --orange:#F59E0B;
      --danger:#FB7185;
      --success:#34D399;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-pill:999px;
      --shadow:0 24px 70px rgba(0,0,0,.42);
      --shadow-glow:0 18px 50px rgba(37,99,235,.24),0 8px 36px rgba(217,70,239,.16);
      --container:1220px;
      --grad-main:linear-gradient(135deg,#2563EB 0%,#7C3AED 45%,#D946EF 100%);
      --grad-gold:linear-gradient(135deg,#F5B971,#F59E0B);
      --ease:all .28s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 8%,rgba(37,99,235,.26),transparent 34%),
        radial-gradient(circle at 82% 16%,rgba(217,70,239,.20),transparent 32%),
        radial-gradient(circle at 50% 86%,rgba(245,158,11,.08),transparent 28%),
        linear-gradient(180deg,#070A12 0%,#0B1020 45%,#070A12 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.28;
      z-index:-1;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:radial-gradient(circle at top,black,transparent 78%);
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      pointer-events:none;
      background:
        linear-gradient(120deg,rgba(255,255,255,.025),transparent 35%,rgba(217,70,239,.035) 62%,transparent),
        radial-gradient(circle at 70% 30%,rgba(30,91,255,.11),transparent 42%);
    }
    ::selection{background:rgba(217,70,239,.45);color:#fff}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:#fff}
    img,svg{max-width:100%;height:auto}
    button,input,textarea,select{font:inherit}
    section{position:relative}
    .container{
      max-width:var(--container);
      padding-left:22px;
      padding-right:22px;
    }
    .section{
      padding:98px 0;
    }
    .section-compact{
      padding:72px 0;
    }
    .section-title{
      max-width:760px;
      margin-bottom:38px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border:1px solid rgba(148,163,184,.18);
      border-radius:var(--radius-pill);
      color:var(--muted);
      background:rgba(15,23,42,.62);
      backdrop-filter:blur(14px);
      font-size:14px;
      letter-spacing:.02em;
    }
    .eyebrow .dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--grad-main);
      box-shadow:0 0 16px rgba(217,70,239,.7);
    }
    h1,h2,h3,h4{
      letter-spacing:-.035em;
      line-height:1.16;
      color:var(--text);
      margin:0;
    }
    h1{
      font-size:clamp(36px,5vw,58px);
      font-weight:820;
    }
    h2{
      font-size:clamp(28px,3.6vw,38px);
      font-weight:780;
    }
    h3{
      font-size:22px;
      font-weight:700;
    }
    p{margin:0;color:var(--muted)}
    .lead{
      font-size:18px;
      line-height:1.9;
      color:var(--muted);
    }
    .gradient-text{
      background:linear-gradient(120deg,#fff 0%,#BFD2FF 32%,#F0ABFC 72%,#F5B971 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .text-weak{color:var(--weak)}
    .focus-ring:focus-visible,
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible{
      outline:0;
      box-shadow:0 0 0 4px rgba(37,99,235,.24),0 0 0 1px rgba(217,70,239,.5);
      border-color:rgba(217,70,239,.55)!important;
    }

    .site-header{
      position:fixed;
      top:0;left:0;right:0;
      z-index:1030;
      background:rgba(7,10,18,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(148,163,184,.14);
      box-shadow:0 12px 36px rgba(0,0,0,.28);
    }
    .navbar{
      padding:14px 0;
    }
    .brand-mark{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-icon{
      width:42px;height:42px;
      display:grid;place-items:center;
      border-radius:15px;
      background:linear-gradient(145deg,rgba(37,99,235,.95),rgba(217,70,239,.9));
      box-shadow:0 0 28px rgba(37,99,235,.38), inset 0 1px 0 rgba(255,255,255,.26);
      color:#fff;
      font-weight:900;
      letter-spacing:.02em;
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
      min-width:0;
    }
    .brand-name{
      font-weight:800;
      letter-spacing:-.03em;
      color:#fff;
      font-size:17px;
      white-space:nowrap;
    }
    .brand-sub{
      color:var(--weak);
      font-size:12px;
      margin-top:3px;
    }
    .navbar-toggler{
      border:1px solid rgba(148,163,184,.18);
      border-radius:14px;
      padding:9px 11px;
      color:#fff;
      background:rgba(15,23,42,.68);
    }
    .navbar-toggler-icon{
      width:22px;height:22px;
      background-image:none;
      position:relative;
      display:inline-block;
    }
    .navbar-toggler-icon:before,
    .navbar-toggler-icon:after,
    .navbar-toggler-icon span{
      content:"";
      position:absolute;
      left:2px;right:2px;
      height:2px;
      border-radius:2px;
      background:#fff;
    }
    .navbar-toggler-icon:before{top:5px}
    .navbar-toggler-icon span{top:10px}
    .navbar-toggler-icon:after{top:15px}
    .nav-menu{
      align-items:center;
      gap:8px;
    }
    .navbar-nav .nav-link{
      position:relative;
      color:var(--muted);
      font-size:15px;
      font-weight:650;
      padding:10px 14px!important;
      border-radius:var(--radius-pill);
    }
    .navbar-nav .nav-link:hover{
      color:#fff;
      background:rgba(37,99,235,.10);
    }
    .navbar-nav .nav-link.active{
      color:#fff;
      text-shadow:0 0 20px rgba(217,70,239,.42);
    }
    .navbar-nav .nav-link.active:after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:3px;
      height:2px;
      border-radius:10px;
      background:var(--grad-main);
      box-shadow:0 0 16px rgba(217,70,239,.68);
    }
    .nav-cta{
      margin-left:14px;
    }

    .btn-neon,
    .btn-ghost,
    .btn-small{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      cursor:pointer;
      transition:var(--ease);
      font-weight:720;
      white-space:nowrap;
    }
    .btn-neon{
      color:#fff;
      padding:14px 24px;
      border-radius:var(--radius-pill);
      background:var(--grad-main);
      box-shadow:var(--shadow-glow);
      border:1px solid rgba(255,255,255,.12);
    }
    .btn-neon:hover{
      color:#fff;
      transform:translateY(-2px);
      filter:saturate(1.1);
      box-shadow:0 24px 68px rgba(37,99,235,.34),0 12px 42px rgba(217,70,239,.24);
    }
    .btn-ghost{
      color:#fff;
      padding:13px 22px;
      border-radius:var(--radius-pill);
      background:rgba(15,23,42,.55);
      border:1px solid rgba(148,163,184,.22);
      backdrop-filter:blur(14px);
    }
    .btn-ghost:hover{
      color:#fff;
      transform:translateY(-2px);
      border-color:rgba(217,70,239,.5);
      background:rgba(37,99,235,.13);
      box-shadow:0 16px 40px rgba(0,0,0,.24);
    }
    .btn-small{
      padding:9px 14px;
      border-radius:var(--radius-pill);
      background:rgba(37,99,235,.12);
      color:#E0E7FF;
      border:1px solid rgba(148,163,184,.18);
      font-size:14px;
    }
    .btn-small:hover{
      color:#fff;
      border-color:rgba(217,70,239,.42);
      background:rgba(217,70,239,.11);
      transform:translateY(-1px);
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:var(--radius-pill);
      border:1px solid rgba(148,163,184,.18);
      background:rgba(15,23,42,.62);
      color:var(--muted);
      font-size:13px;
      font-weight:650;
    }
    .badge-hot{
      color:#fff;
      border-color:rgba(245,185,113,.28);
      background:linear-gradient(135deg,rgba(245,185,113,.16),rgba(217,70,239,.10));
    }

    .hero{
      min-height:735px;
      display:flex;
      align-items:center;
      padding:128px 0 70px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      width:560px;height:560px;
      right:-160px;top:98px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(217,70,239,.22),transparent 65%);
      filter:blur(2px);
    }
    .hero:after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(37,99,235,.5),rgba(217,70,239,.45),transparent);
    }
    .hero-copy{
      position:relative;
      z-index:2;
      max-width:660px;
    }
    .hero-copy h1{
      margin-top:22px;
      margin-bottom:22px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:32px;
    }
    .trust-row{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:38px;
    }
    .trust-item{
      padding:16px 15px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.15);
      background:rgba(15,23,42,.50);
      backdrop-filter:blur(14px);
    }
    .trust-item strong{
      display:block;
      color:#fff;
      font-size:18px;
      line-height:1.2;
    }
    .trust-item span{
      display:block;
      color:var(--weak);
      font-size:13px;
      margin-top:5px;
    }
    .preview-console{
      position:relative;
      z-index:2;
      border-radius:32px;
      padding:18px;
      background:
        linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.02)),
        rgba(15,23,42,.64);
      border:1px solid rgba(148,163,184,.18);
      box-shadow:var(--shadow),0 0 90px rgba(37,99,235,.16);
      backdrop-filter:blur(18px);
      overflow:hidden;
    }
    .preview-console:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:radial-gradient(circle at 70% 10%,rgba(217,70,239,.22),transparent 32%),
                 radial-gradient(circle at 10% 80%,rgba(37,99,235,.22),transparent 28%);
      pointer-events:none;
    }
    .console-inner{
      position:relative;
      z-index:1;
      border-radius:24px;
      border:1px solid rgba(148,163,184,.14);
      background:rgba(2,6,23,.58);
      padding:18px;
    }
    .console-top{
      display:flex;
      gap:8px;
      align-items:center;
      justify-content:space-between;
      margin-bottom:18px;
    }
    .window-dots{display:flex;gap:7px}
    .window-dots i{
      width:10px;height:10px;border-radius:50%;
      display:block;background:rgba(148,163,184,.36);
    }
    .window-dots i:nth-child(1){background:#FB7185}
    .window-dots i:nth-child(2){background:#F5B971}
    .window-dots i:nth-child(3){background:#34D399}
    .console-status{
      font-size:12px;
      color:var(--weak);
      padding:6px 10px;
      border:1px solid rgba(148,163,184,.14);
      border-radius:var(--radius-pill);
      background:rgba(15,23,42,.6);
    }
    .search-sim{
      display:flex;
      align-items:center;
      gap:10px;
      padding:13px 14px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(15,23,42,.78);
      color:var(--weak);
      margin-bottom:16px;
    }
    .tag-strip{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      margin-bottom:16px;
    }
    .cover-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:14px;
      align-items:stretch;
    }
    .cover-card{
      min-height:205px;
      border-radius:22px;
      overflow:hidden;
      border:1px solid rgba(148,163,184,.16);
      background:
        linear-gradient(145deg,rgba(37,99,235,.22),rgba(217,70,239,.16)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.055) 0 1px,transparent 1px 18px);
      position:relative;
    }
    .cover-card:after{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 70% 25%,rgba(255,255,255,.24),transparent 16%),
                 linear-gradient(180deg,transparent,rgba(2,6,23,.84));
    }
    .cover-info{
      position:absolute;
      z-index:2;
      left:16px;right:16px;bottom:15px;
    }
    .cover-info h3{font-size:20px;margin-bottom:8px}
    .cover-info p{font-size:13px;color:#DCE7F8}
    .side-stack{
      display:grid;
      gap:14px;
    }
    .mini-cover{
      border-radius:20px;
      border:1px solid rgba(148,163,184,.16);
      background:linear-gradient(135deg,rgba(15,23,42,.95),rgba(37,99,235,.20),rgba(217,70,239,.12));
      padding:16px;
      min-height:96px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .progress-line{
      height:7px;
      border-radius:99px;
      background:rgba(148,163,184,.16);
      overflow:hidden;
      margin-top:17px;
    }
    .progress-line span{
      display:block;
      height:100%;
      width:72%;
      border-radius:99px;
      background:var(--grad-main);
      box-shadow:0 0 18px rgba(217,70,239,.55);
    }

    .glass-card{
      position:relative;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:var(--panel);
      box-shadow:0 18px 54px rgba(0,0,0,.28);
      backdrop-filter:blur(16px);
      transition:var(--ease);
      overflow:hidden;
    }
    .glass-card:before{
      content:"";
      position:absolute;
      top:0;left:0;right:0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(37,99,235,.65),rgba(217,70,239,.55),transparent);
      opacity:.75;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:0 26px 70px rgba(0,0,0,.34),0 0 42px rgba(217,70,239,.12);
    }
    .feature-layout{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:38px;
      align-items:start;
    }
    .sticky-note{
      position:sticky;
      top:110px;
      padding:34px;
    }
    .feature-matrix{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:20px;
    }
    .feature-card{
      padding:26px;
      min-height:236px;
    }
    .feature-icon{
      width:48px;height:48px;
      display:grid;place-items:center;
      border-radius:17px;
      color:#fff;
      background:linear-gradient(145deg,rgba(37,99,235,.85),rgba(217,70,239,.64));
      box-shadow:0 0 28px rgba(37,99,235,.22);
      font-size:22px;
      margin-bottom:18px;
    }
    .feature-card h3{margin-bottom:11px}
    .micro-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:18px;
    }

    .data-panel{
      padding:34px;
      border-radius:32px;
      background:
        radial-gradient(circle at 20% 20%,rgba(37,99,235,.18),transparent 34%),
        radial-gradient(circle at 88% 10%,rgba(217,70,239,.15),transparent 30%),
        rgba(15,23,42,.72);
      border:1px solid rgba(148,163,184,.17);
      box-shadow:var(--shadow);
    }
    .data-grid{
      display:grid;
      grid-template-columns:1.1fr repeat(4,1fr);
      gap:18px;
      align-items:stretch;
    }
    .data-intro{
      padding:8px 18px 8px 0;
      border-right:1px solid rgba(148,163,184,.13);
    }
    .data-item{
      padding:24px 20px;
      border-radius:24px;
      background:rgba(2,6,23,.35);
      border:1px solid rgba(148,163,184,.13);
      text-align:center;
    }
    .data-num{
      display:block;
      font-size:34px;
      font-weight:850;
      line-height:1;
      background:var(--grad-main);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
      margin-bottom:8px;
    }
    .data-item span:last-child{
      color:var(--muted);
      font-size:14px;
    }

    .topic-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
    }
    .topic-large{
      min-height:468px;
      padding:26px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 68% 18%,rgba(217,70,239,.20),transparent 32%),
        linear-gradient(145deg,rgba(37,99,235,.18),rgba(15,23,42,.72));
    }
    .abstract-cover{
      border-radius:24px;
      min-height:225px;
      border:1px solid rgba(148,163,184,.16);
      background:
        radial-gradient(circle at 25% 24%,rgba(255,255,255,.22),transparent 12%),
        radial-gradient(circle at 74% 34%,rgba(217,70,239,.25),transparent 18%),
        linear-gradient(135deg,rgba(37,99,235,.32),rgba(217,70,239,.18),rgba(245,185,113,.11)),
        repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 16px);
      position:relative;
      overflow:hidden;
    }
    .abstract-cover:before{
      content:"HD";
      position:absolute;
      right:18px;top:18px;
      padding:7px 10px;
      border-radius:12px;
      color:#0B1020;
      background:var(--grad-gold);
      font-weight:900;
      letter-spacing:.05em;
    }
    .topic-large h3{
      font-size:28px;
      margin:22px 0 12px;
    }
    .topic-side{
      display:grid;
      gap:22px;
    }
    .topic-mini{
      padding:23px;
    }
    .topic-mini .mini-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:14px;
    }
    .mini-index{
      width:36px;height:36px;
      display:grid;place-items:center;
      border-radius:13px;
      background:rgba(37,99,235,.16);
      color:#BFDBFE;
      border:1px solid rgba(148,163,184,.15);
      font-weight:800;
    }

    .path-timeline{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      position:relative;
    }
    .path-step{
      padding:26px 22px;
      min-height:236px;
    }
    .step-num{
      display:inline-grid;
      place-items:center;
      width:42px;height:42px;
      border-radius:50%;
      background:var(--grad-main);
      color:#fff;
      font-weight:850;
      box-shadow:0 0 24px rgba(217,70,239,.24);
      margin-bottom:16px;
    }
    .path-step h3{margin-bottom:10px}

    .notice-band{
      padding:22px 24px;
      border-radius:24px;
      background:linear-gradient(135deg,rgba(245,185,113,.12),rgba(37,99,235,.10),rgba(217,70,239,.10));
      border:1px solid rgba(245,185,113,.22);
      display:flex;
      gap:16px;
      align-items:flex-start;
    }
    .notice-band i{
      color:var(--gold);
      font-size:24px;
      margin-top:2px;
    }

    .accordion{
      display:grid;
      gap:14px;
    }
    .accordion-item{
      overflow:hidden;
      border-radius:22px!important;
      background:rgba(15,23,42,.72)!important;
      border:1px solid rgba(148,163,184,.16)!important;
      color:var(--text);
      backdrop-filter:blur(16px);
    }
    .accordion-button{
      color:#fff!important;
      background:transparent!important;
      font-weight:720;
      padding:22px 24px;
      box-shadow:none!important;
      border:0;
    }
    .accordion-button:not(.collapsed){
      background:linear-gradient(90deg,rgba(37,99,235,.14),rgba(217,70,239,.08))!important;
      border-left:3px solid var(--purple);
    }
    .accordion-button:after{
      filter:invert(1) grayscale(1);
      opacity:.75;
    }
    .accordion-body{
      color:var(--muted);
      padding:0 24px 24px 27px;
      line-height:1.85;
    }

    .cta-wrap{
      padding:38px;
      border-radius:34px;
      border:1px solid rgba(148,163,184,.17);
      background:
        radial-gradient(circle at 14% 18%,rgba(37,99,235,.23),transparent 28%),
        radial-gradient(circle at 82% 28%,rgba(217,70,239,.21),transparent 30%),
        linear-gradient(135deg,rgba(15,23,42,.86),rgba(2,6,23,.78));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .form-panel{
      padding:26px;
      border-radius:28px;
      background:rgba(2,6,23,.38);
      border:1px solid rgba(148,163,184,.14);
    }
    .form-label{
      color:#E2E8F0;
      font-weight:650;
      font-size:14px;
      margin-bottom:7px;
    }
    .form-control,
    .form-select{
      background:rgba(15,23,42,.75)!important;
      color:#fff!important;
      border:1px solid rgba(148,163,184,.22)!important;
      border-radius:16px!important;
      padding:13px 14px;
      box-shadow:none!important;
    }
    .form-control::placeholder{color:var(--weak)}
    .form-select option{background:#0B1020;color:#fff}
    textarea.form-control{min-height:118px;resize:vertical}
    .privacy-tip{
      display:flex;
      gap:10px;
      color:var(--weak);
      font-size:13px;
      margin-top:13px;
    }

    .site-footer{
      position:relative;
      padding:62px 0 28px;
      background:rgba(2,6,23,.62);
      border-top:1px solid rgba(148,163,184,.14);
      margin-top:20px;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(37,99,235,.65),rgba(217,70,239,.48),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .75fr .85fr 1.05fr;
      gap:34px;
      margin-bottom:36px;
    }
    .footer-title{
      color:#fff;
      font-weight:760;
      margin-bottom:15px;
    }
    .footer-links{
      list-style:none;
      padding:0;margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--weak);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      padding-left:4px;
    }
    .footer-brand p{
      margin-top:16px;
      max-width:390px;
      font-size:14px;
    }
    .footer-bottom{
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.12);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:var(--weak);
      font-size:13px;
      flex-wrap:wrap;
    }
    .compliance-box{
      padding:16px;
      border-radius:20px;
      border:1px solid rgba(245,185,113,.20);
      background:rgba(245,185,113,.08);
      color:var(--muted);
      font-size:14px;
    }

    @media (max-width: 991.98px){
      .navbar-collapse{
        margin-top:14px;
        padding:16px;
        border-radius:24px;
        background:rgba(7,10,18,.94);
        border:1px solid rgba(148,163,184,.16);
        box-shadow:var(--shadow);
      }
      .navbar-nav .nav-link{
        border-radius:16px;
        padding:12px 14px!important;
      }
      .navbar-nav .nav-link.active:after{
        left:8px;right:auto;bottom:11px;top:11px;
        width:3px;height:auto;
      }
      .nav-cta{
        margin-left:0;
        margin-top:10px;
        width:100%;
      }
      .nav-cta .btn-neon{width:100%}
      .hero{
        min-height:auto;
        padding:118px 0 62px;
      }
      .hero-copy{max-width:100%}
      .preview-console{margin-top:42px}
      .trust-row{grid-template-columns:repeat(2,1fr)}
      .feature-layout,
      .topic-grid{
        grid-template-columns:1fr;
      }
      .sticky-note{position:relative;top:auto}
      .data-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .data-intro{
        grid-column:1/-1;
        border-right:0;
        border-bottom:1px solid rgba(148,163,184,.13);
        padding:0 0 18px;
      }
      .path-timeline{
        grid-template-columns:repeat(2,1fr);
      }
      .footer-grid{
        grid-template-columns:repeat(2,1fr);
      }
    }
    @media (max-width: 767.98px){
      .section{padding:68px 0}
      .section-compact{padding:56px 0}
      .container{padding-left:18px;padding-right:18px}
      .hero-actions{
        flex-direction:column;
      }
      .hero-actions .btn-neon,
      .hero-actions .btn-ghost{
        width:100%;
      }
      .trust-row,
      .feature-matrix,
      .path-timeline,
      .data-grid{
        grid-template-columns:1fr;
      }
      .cover-grid{
        grid-template-columns:1fr;
      }
      .cover-card{min-height:220px}
      .data-panel,
      .cta-wrap{padding:24px}
      .notice-band{
        flex-direction:column;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
      }
    }
    @media (max-width: 575.98px){
      body:before{opacity:.16;background-size:34px 34px}
      .brand-icon{width:38px;height:38px;border-radius:13px}
      .brand-name{font-size:15px}
      .brand-sub{display:none}
      .hero{padding-top:104px}
      .preview-console{padding:12px;border-radius:24px}
      .console-inner{padding:14px;border-radius:20px}
      .feature-card,
      .topic-mini,
      .path-step{padding:22px}
      .topic-large{padding:20px;min-height:420px}
      .abstract-cover{min-height:190px}
      .accordion-button{padding:18px 19px}
      .accordion-body{padding:0 19px 20px 22px}
    }

/* roulang page: category2 */
:root{
      --bg:#070A12;
      --bg-2:#0B1020;
      --bg-3:#101624;
      --panel:rgba(15,23,42,.68);
      --panel-strong:rgba(15,23,42,.86);
      --panel-soft:rgba(30,41,59,.52);
      --primary:#2563EB;
      --primary-2:#1E5BFF;
      --accent:#D946EF;
      --accent-2:#C026D3;
      --gold:#F5B971;
      --orange:#F59E0B;
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --border:rgba(148,163,184,.16);
      --border-hover:rgba(217,70,239,.45);
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:30px;
      --shadow:0 20px 60px rgba(0,0,0,.35);
      --shadow-neon:0 16px 46px rgba(37,99,235,.26),0 0 34px rgba(217,70,239,.18);
      --gradient:linear-gradient(135deg,#2563EB,#D946EF);
      --gradient-soft:linear-gradient(135deg,rgba(37,99,235,.18),rgba(217,70,239,.16));
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      line-height:1.8;
      background:
        radial-gradient(circle at 12% 5%,rgba(37,99,235,.26),transparent 34%),
        radial-gradient(circle at 86% 16%,rgba(217,70,239,.22),transparent 31%),
        radial-gradient(circle at 55% 80%,rgba(245,185,113,.08),transparent 28%),
        linear-gradient(180deg,#070A12 0%,#0B1020 46%,#070A12 100%);
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.34;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:radial-gradient(circle at center,black,transparent 78%);
    }
    a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease,transform .25s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(217,70,239,.35);color:#fff}
    :focus-visible{outline:2px solid rgba(217,70,239,.88);outline-offset:4px}
    .container{max-width:var(--container)}
    .section{padding:96px 0;position:relative}
    .section-tight{padding:72px 0}
    .section-heading{max-width:760px;margin-bottom:34px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border:1px solid rgba(148,163,184,.18);
      border-radius:999px;
      background:rgba(15,23,42,.58);
      color:var(--muted);
      font-size:14px;
      line-height:1.2;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .eyebrow i{color:var(--gold)}
    h1,h2,h3,h4{letter-spacing:-.02em;color:var(--text)}
    h1{
      font-size:clamp(34px,5vw,56px);
      line-height:1.14;
      font-weight:800;
      margin:18px 0 20px;
    }
    h2{font-size:clamp(28px,3.6vw,38px);line-height:1.2;font-weight:760;margin:0 0 16px}
    h3{font-size:22px;line-height:1.35;font-weight:700;margin:0 0 12px}
    p{color:var(--muted);margin:0}
    .lead-text{font-size:17px;color:var(--muted);max-width:720px}
    .gradient-text{
      background:linear-gradient(135deg,#F8FAFC 0%,#93C5FD 38%,#F0ABFC 78%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(7,10,18,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(148,163,184,.14);
      box-shadow:0 12px 34px rgba(0,0,0,.28);
    }
    .navbar{padding:14px 0}
    .brand-mark{display:inline-flex;align-items:center;gap:12px;min-width:0}
    .brand-icon{
      width:46px;height:46px;
      display:grid;place-items:center;
      border-radius:16px;
      color:#fff;
      font-weight:800;
      letter-spacing:.02em;
      background:linear-gradient(135deg,#2563EB,#D946EF);
      box-shadow:0 0 30px rgba(37,99,235,.35),0 0 24px rgba(217,70,239,.22);
      border:1px solid rgba(255,255,255,.18);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.18}
    .brand-name{font-size:16px;font-weight:760;color:#fff;white-space:nowrap}
    .brand-sub{font-size:12px;color:var(--weak);margin-top:2px;white-space:nowrap}
    .nav-menu{gap:4px;align-items:center}
    .nav-link{
      position:relative;
      color:var(--muted);
      font-size:15px;
      font-weight:620;
      padding:12px 15px!important;
      border-radius:999px;
    }
    .nav-link:before{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:6px;height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
      transform:scaleX(0);
      opacity:0;
      transition:.25s ease;
    }
    .nav-link:hover{color:#fff;background:rgba(37,99,235,.08)}
    .nav-link.active{color:#fff;text-shadow:0 0 18px rgba(217,70,239,.36)}
    .nav-link.active:before{transform:scaleX(1);opacity:1}
    .nav-cta{margin-left:16px}
    .btn-neon,.btn-ghost,.btn-soft{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:0;
      border-radius:999px;
      padding:13px 22px;
      font-weight:720;
      line-height:1.2;
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;
      white-space:nowrap;
    }
    .btn-neon{
      color:#fff;
      background:linear-gradient(135deg,#2563EB 0%,#D946EF 100%);
      box-shadow:0 14px 36px rgba(37,99,235,.25),0 0 28px rgba(217,70,239,.18);
    }
    .btn-neon:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 56px rgba(37,99,235,.34),0 0 40px rgba(217,70,239,.28)}
    .btn-ghost{
      color:#fff;
      background:rgba(15,23,42,.55);
      border:1px solid rgba(148,163,184,.22);
    }
    .btn-ghost:hover{color:#fff;background:rgba(37,99,235,.13);border-color:rgba(217,70,239,.42);transform:translateY(-2px)}
    .btn-soft{
      color:#E0E7FF;
      background:rgba(37,99,235,.13);
      border:1px solid rgba(96,165,250,.22);
      padding:10px 16px;
      font-size:14px;
    }
    .btn-soft:hover{color:#fff;border-color:rgba(217,70,239,.35);background:rgba(217,70,239,.12)}
    .navbar-toggler{
      width:46px;height:42px;border:1px solid rgba(148,163,184,.24);
      border-radius:14px;padding:0;box-shadow:none!important;
    }
    .navbar-toggler-icon{
      width:22px;height:16px;position:relative;background:none!important;display:inline-block;
    }
    .navbar-toggler-icon:before,.navbar-toggler-icon:after,.navbar-toggler-icon span{
      content:"";position:absolute;left:0;width:22px;height:2px;border-radius:999px;background:#fff;
    }
    .navbar-toggler-icon:before{top:0}
    .navbar-toggler-icon span{top:7px}
    .navbar-toggler-icon:after{bottom:0}
    .guide-hero{
      position:relative;
      min-height:620px;
      display:flex;
      align-items:center;
      padding:86px 0 70px;
      overflow:hidden;
      border-bottom:1px solid rgba(148,163,184,.10);
    }
    .guide-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 20% 20%,rgba(37,99,235,.24),transparent 28%),
        radial-gradient(circle at 82% 30%,rgba(217,70,239,.22),transparent 30%),
        linear-gradient(110deg,rgba(15,23,42,.35),rgba(7,10,18,.82));
      pointer-events:none;
    }
    .guide-hero:after{
      content:"";
      position:absolute;
      width:640px;height:640px;right:-210px;top:70px;
      border-radius:50%;
      background:conic-gradient(from 180deg,rgba(37,99,235,.18),rgba(217,70,239,.18),transparent,rgba(37,99,235,.12));
      filter:blur(8px);
      opacity:.72;
      pointer-events:none;
    }
    .hero-content{position:relative;z-index:2}
    .breadcrumb-lite{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      color:var(--weak);
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb-lite a:hover{color:#fff}
    .breadcrumb-lite .current{color:#fff}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
    .hero-checks{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      color:var(--muted);
      background:rgba(15,23,42,.58);
      border:1px solid rgba(148,163,184,.18);
      font-size:14px;
      line-height:1.2;
    }
    .pill .dot{
      width:7px;height:7px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 14px rgba(217,70,239,.75);
    }
    .experience-panel{
      position:relative;
      border:1px solid rgba(148,163,184,.18);
      background:linear-gradient(180deg,rgba(15,23,42,.82),rgba(15,23,42,.52));
      border-radius:30px;
      padding:22px;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .experience-panel:before{
      content:"";
      position:absolute;inset:-1px;
      background:radial-gradient(circle at 28% 10%,rgba(37,99,235,.22),transparent 32%),radial-gradient(circle at 80% 30%,rgba(217,70,239,.18),transparent 34%);
      pointer-events:none;
    }
    .panel-inner{position:relative;z-index:2}
    .score-card{
      border-radius:24px;
      padding:20px;
      background:rgba(7,10,18,.52);
      border:1px solid rgba(148,163,184,.15);
      margin-bottom:16px;
    }
    .score-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
    .score-number{
      font-size:42px;
      font-weight:820;
      line-height:1;
      background:linear-gradient(135deg,#93C5FD,#F0ABFC);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .rating-bars{display:grid;gap:12px}
    .rating-row{display:grid;grid-template-columns:96px 1fr 42px;gap:10px;align-items:center;color:var(--muted);font-size:14px}
    .bar{height:9px;border-radius:999px;background:rgba(148,163,184,.14);overflow:hidden}
    .bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 18px rgba(217,70,239,.28)}
    .mini-step{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:15px;
      border-radius:20px;
      background:rgba(15,23,42,.52);
      border:1px solid rgba(148,163,184,.13);
      margin-top:12px;
    }
    .mini-step i{
      width:38px;height:38px;
      border-radius:14px;
      display:grid;place-items:center;
      background:var(--gradient-soft);
      color:#fff;
      border:1px solid rgba(148,163,184,.14);
      flex:0 0 auto;
    }
    .mini-step strong{display:block;color:#fff;margin-bottom:2px}
    .mini-step span{display:block;color:var(--weak);font-size:14px;line-height:1.55}
    .glass-card{
      position:relative;
      height:100%;
      padding:24px;
      border-radius:var(--radius);
      background:var(--panel);
      border:1px solid var(--border);
      box-shadow:0 18px 48px rgba(0,0,0,.22);
      overflow:hidden;
      transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
    }
    .glass-card:before{
      content:"";
      position:absolute;
      top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(96,165,250,.62),rgba(217,70,239,.58),transparent);
      opacity:.65;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--border-hover);
      box-shadow:var(--shadow-neon);
      background:rgba(15,23,42,.78);
    }
    .card-icon{
      width:48px;height:48px;
      display:grid;place-items:center;
      border-radius:17px;
      background:linear-gradient(135deg,rgba(37,99,235,.22),rgba(217,70,239,.16));
      color:#fff;
      margin-bottom:16px;
      border:1px solid rgba(148,163,184,.14);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    }
    .timeline-wrap{
      position:relative;
      padding-left:18px;
    }
    .timeline-wrap:before{
      content:"";
      position:absolute;
      left:34px;top:10px;bottom:20px;width:2px;
      background:linear-gradient(180deg,var(--primary),var(--accent),rgba(148,163,184,.08));
      border-radius:999px;
      box-shadow:0 0 20px rgba(37,99,235,.28);
    }
    .timeline-item{
      position:relative;
      display:grid;
      grid-template-columns:68px 1fr;
      gap:20px;
      margin-bottom:24px;
    }
    .timeline-item:last-child{margin-bottom:0}
    .timeline-index{
      position:relative;
      z-index:2;
      width:68px;height:68px;
      border-radius:22px;
      display:grid;place-items:center;
      color:#fff;
      font-weight:820;
      background:linear-gradient(135deg,rgba(37,99,235,.86),rgba(217,70,239,.82));
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 0 34px rgba(37,99,235,.28);
    }
    .timeline-card{
      padding:22px;
      border-radius:24px;
      background:rgba(15,23,42,.66);
      border:1px solid rgba(148,163,184,.16);
      transition:.25s ease;
    }
    .timeline-card:hover{border-color:rgba(217,70,239,.42);transform:translateX(4px);background:rgba(15,23,42,.78)}
    .timeline-card .tag-row{margin-top:14px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px}
    .mini-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      color:var(--weak);
      background:rgba(7,10,18,.42);
      border:1px solid rgba(148,163,184,.14);
      font-size:13px;
      line-height:1.2;
    }
    .compare-panel{
      padding:26px;
      border-radius:30px;
      background:linear-gradient(135deg,rgba(15,23,42,.82),rgba(15,23,42,.58));
      border:1px solid rgba(148,163,184,.18);
      box-shadow:var(--shadow);
    }
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-col{
      border-radius:24px;
      padding:22px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(7,10,18,.38);
    }
    .compare-col.featured{
      background:linear-gradient(135deg,rgba(37,99,235,.14),rgba(217,70,239,.12));
      border-color:rgba(217,70,239,.3);
    }
    .compare-title{display:flex;align-items:center;gap:10px;margin-bottom:16px}
    .compare-title i{color:var(--gold)}
    .compare-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .compare-list li{
      display:flex;gap:10px;
      padding:12px 0;
      color:var(--muted);
      border-bottom:1px solid rgba(148,163,184,.09);
    }
    .compare-list li:last-child{border-bottom:0}
    .compare-list i{margin-top:3px;color:var(--accent)}
    .topic-strip{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
    }
    .feature-cover{
      min-height:360px;
      border-radius:30px;
      padding:26px;
      position:relative;
      overflow:hidden;
      border:1px solid rgba(148,163,184,.18);
      background:
        radial-gradient(circle at 24% 20%,rgba(37,99,235,.35),transparent 34%),
        radial-gradient(circle at 78% 34%,rgba(217,70,239,.28),transparent 32%),
        linear-gradient(135deg,rgba(15,23,42,.9),rgba(7,10,18,.62));
      box-shadow:var(--shadow);
    }
    .feature-cover:after{
      content:"";
      position:absolute;
      inset:18px;
      border-radius:24px;
      border:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),
        linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px);
      background-size:32px 32px;
      mask-image:linear-gradient(180deg,black,transparent 82%);
      pointer-events:none;
    }
    .feature-cover-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:space-between}
    .cover-badge{align-self:flex-start;color:#111827;background:linear-gradient(135deg,#F5B971,#F59E0B);padding:7px 12px;border-radius:999px;font-weight:800;font-size:13px}
    .cover-title{max-width:560px}
    .side-topics{display:grid;gap:18px}
    .topic-card{
      display:grid;
      grid-template-columns:116px 1fr;
      gap:16px;
      padding:16px;
      border-radius:24px;
      background:rgba(15,23,42,.66);
      border:1px solid rgba(148,163,184,.16);
      transition:.25s ease;
    }
    .topic-card:hover{transform:translateY(-3px);border-color:rgba(217,70,239,.42);box-shadow:var(--shadow-neon)}
    .thumb{
      position:relative;
      min-height:112px;
      border-radius:18px;
      overflow:hidden;
      background:
        linear-gradient(135deg,rgba(37,99,235,.38),rgba(217,70,239,.25)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.07) 0 2px,transparent 2px 10px);
      border:1px solid rgba(255,255,255,.08);
    }
    .thumb:before{
      content:"HD";
      position:absolute;
      left:10px;top:10px;
      padding:4px 8px;
      border-radius:999px;
      background:rgba(7,10,18,.72);
      color:#fff;
      font-size:12px;
      font-weight:800;
      border:1px solid rgba(255,255,255,.12);
    }
    .topic-card p{font-size:14px;line-height:1.65}
    .notice-band{
      border-radius:30px;
      padding:28px;
      background:linear-gradient(135deg,rgba(245,185,113,.12),rgba(37,99,235,.1),rgba(217,70,239,.1));
      border:1px solid rgba(245,185,113,.2);
      display:grid;
      grid-template-columns:56px 1fr;
      gap:18px;
      align-items:flex-start;
    }
    .notice-band i{
      width:56px;height:56px;
      display:grid;place-items:center;
      border-radius:20px;
      background:rgba(245,185,113,.14);
      color:var(--gold);
      border:1px solid rgba(245,185,113,.25);
      font-size:24px;
    }
    .accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent}
    .accordion-item{
      margin-bottom:14px;
      border:1px solid rgba(148,163,184,.16)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:rgba(15,23,42,.68)!important;
      box-shadow:0 14px 34px rgba(0,0,0,.18);
    }
    .accordion-button{
      color:#fff!important;
      background:rgba(15,23,42,.64)!important;
      box-shadow:none!important;
      padding:20px 22px;
      font-weight:720;
      line-height:1.45;
    }
    .accordion-button:after{filter:invert(1) grayscale(1);opacity:.75}
    .accordion-button:not(.collapsed){
      background:linear-gradient(90deg,rgba(37,99,235,.16),rgba(217,70,239,.1))!important;
      border-left:3px solid var(--accent);
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 22px 25px;
      background:rgba(7,10,18,.2);
    }
    .feedback-panel{
      border-radius:32px;
      padding:34px;
      background:
        radial-gradient(circle at 18% 16%,rgba(37,99,235,.2),transparent 36%),
        radial-gradient(circle at 86% 24%,rgba(217,70,239,.16),transparent 32%),
        rgba(15,23,42,.74);
      border:1px solid rgba(148,163,184,.18);
      box-shadow:var(--shadow);
    }
    .form-label{color:#fff;font-weight:650;margin-bottom:8px}
    .form-control,.form-select{
      color:#fff!important;
      background-color:rgba(15,23,42,.75)!important;
      border:1px solid rgba(148,163,184,.22)!important;
      border-radius:16px;
      min-height:50px;
      padding:12px 14px;
      box-shadow:none!important;
    }
    .form-control::placeholder{color:var(--weak)}
    .form-control:focus,.form-select:focus{
      border-color:rgba(217,70,239,.55)!important;
      box-shadow:0 0 0 .22rem rgba(217,70,239,.13)!important;
    }
    textarea.form-control{min-height:126px}
    .privacy-note{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--weak);
      font-size:14px;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(7,10,18,.34);
      border:1px solid rgba(148,163,184,.14);
    }
    .privacy-note i{color:var(--gold);margin-top:3px}
    .cta-banner{
      border-radius:34px;
      padding:38px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.22),rgba(217,70,239,.18)),
        rgba(15,23,42,.72);
      border:1px solid rgba(217,70,239,.24);
      box-shadow:var(--shadow-neon);
      overflow:hidden;
      position:relative;
    }
    .cta-banner:after{
      content:"";
      position:absolute;
      width:260px;height:260px;
      right:-90px;bottom:-100px;
      border-radius:50%;
      background:rgba(217,70,239,.24);
      filter:blur(24px);
      pointer-events:none;
    }
    .cta-banner > *{position:relative;z-index:2}
    .site-footer{
      position:relative;
      padding:64px 0 28px;
      background:rgba(5,8,15,.92);
      border-top:1px solid rgba(148,163,184,.14);
      overflow:hidden;
    }
    .site-footer:before{
      content:"";
      position:absolute;left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent);
      opacity:.8;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .75fr .75fr 1fr;
      gap:32px;
      padding-bottom:34px;
    }
    .footer-brand p{margin-top:16px;font-size:14px;color:var(--weak)}
    .footer-title{font-size:15px;font-weight:760;color:#fff;margin-bottom:14px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
    .footer-links a{color:var(--weak);font-size:14px}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .compliance-box{
      padding:15px;
      border-radius:18px;
      color:var(--muted);
      background:rgba(15,23,42,.68);
      border:1px solid rgba(245,185,113,.18);
      font-size:14px;
      line-height:1.7;
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.12);
      color:var(--weak);
      font-size:14px;
    }
    @media (max-width: 991.98px){
      .navbar-collapse{
        margin-top:14px;
        padding:16px;
        border-radius:24px;
        background:rgba(7,10,18,.94);
        border:1px solid rgba(148,163,184,.16);
        box-shadow:var(--shadow);
      }
      .nav-menu{align-items:stretch;gap:8px}
      .nav-link{border-radius:16px;padding:12px 14px!important}
      .nav-link.active{background:rgba(37,99,235,.12)}
      .nav-link.active:before{left:7px;right:auto;top:12px;bottom:12px;width:3px;height:auto;transform:none}
      .nav-cta{margin-left:0;margin-top:12px}
      .nav-cta .btn-neon{width:100%}
      .guide-hero{min-height:auto;padding:66px 0 54px}
      .experience-panel{margin-top:34px}
      .section{padding:76px 0}
      .topic-strip{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .compare-grid{grid-template-columns:1fr}
    }
    @media (max-width: 767.98px){
      .brand-icon{width:42px;height:42px;border-radius:14px}
      .brand-name{font-size:14px}
      .brand-sub{font-size:11px}
      .hero-actions .btn-neon,.hero-actions .btn-ghost{width:100%}
      .rating-row{grid-template-columns:82px 1fr 36px;font-size:13px}
      .timeline-wrap{padding-left:0}
      .timeline-wrap:before{left:27px}
      .timeline-item{grid-template-columns:56px 1fr;gap:14px}
      .timeline-index{width:56px;height:56px;border-radius:18px}
      .topic-card{grid-template-columns:1fr}
      .thumb{min-height:150px}
      .notice-band{grid-template-columns:1fr}
      .feedback-panel,.cta-banner{padding:24px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width: 575.98px){
      .section{padding:62px 0}
      .section-tight{padding:52px 0}
      .glass-card,.timeline-card,.compare-panel,.compare-col{padding:18px}
      .guide-hero{padding:48px 0}
      h1{font-size:34px}
      .lead-text{font-size:16px}
      .experience-panel{padding:16px;border-radius:24px}
      .score-number{font-size:36px}
      .breadcrumb-lite{font-size:13px}
      .hero-checks{gap:8px}
      .pill{font-size:13px;padding:7px 10px}
      .feature-cover{min-height:310px;padding:20px}
    }

/* roulang page: category1 */
:root{
      --bg-0:#070A12;
      --bg-1:#0B1020;
      --bg-2:#101624;
      --panel:rgba(15, 23, 42, 0.72);
      --panel-strong:rgba(10, 15, 28, 0.92);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --line:rgba(148, 163, 184, 0.16);
      --line-strong:rgba(217, 70, 239, 0.45);
      --blue:#2563EB;
      --blue-2:#1E5BFF;
      --violet:#D946EF;
      --violet-2:#C026D3;
      --gold:#F5B971;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:18px;
      --radius-sm:14px;
      --shadow:0 20px 60px rgba(0,0,0,.38);
      --shadow-soft:0 14px 34px rgba(2,8,23,.34);
      --container:1240px;
      --section-y:96px;
      --section-y-sm:64px;
      --ease:cubic-bezier(.2,.8,.2,1);
      --grad:linear-gradient(135deg, rgba(37,99,235,1) 0%, rgba(217,70,239,1) 100%);
      --grad-soft:linear-gradient(135deg, rgba(37,99,235,.22), rgba(217,70,239,.20));
      --grad-line:linear-gradient(90deg, rgba(37,99,235,0), rgba(37,99,235,.9), rgba(217,70,239,.9), rgba(217,70,239,0));
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.8;
      background:
        radial-gradient(circle at 14% 12%, rgba(37,99,235,.18), transparent 28%),
        radial-gradient(circle at 86% 18%, rgba(217,70,239,.16), transparent 25%),
        radial-gradient(circle at 50% 100%, rgba(12,18,35,.96), rgba(7,10,18,1) 58%),
        linear-gradient(180deg, #070A12 0%, #0B1020 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
      background-size:100% 100%, 180px 180px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.65), rgba(0,0,0,.18) 48%, rgba(0,0,0,.6));
      opacity:.25;
    }
    a{color:inherit;text-decoration:none;transition:all .28s var(--ease)}
    a:hover{color:#fff}
    img{max-width:100%;display:block}
    ::selection{background:rgba(217,70,239,.32);color:#fff}
    :focus-visible{outline:0;box-shadow:0 0 0 3px rgba(37,99,235,.38),0 0 0 6px rgba(217,70,239,.20)}
    .container{max-width:var(--container)}
    .page-shell{position:relative;z-index:1}

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      backdrop-filter:blur(18px);
      background:rgba(7,10,18,.78);
      border-bottom:1px solid rgba(148,163,184,.14);
      box-shadow:0 1px 0 rgba(255,255,255,.02);
    }
    .navbar{padding:16px 0}
    .brand-mark{
      display:inline-flex;
      align-items:center;
      gap:14px;
      color:#fff;
    }
    .brand-icon{
      width:44px;height:44px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,1), rgba(217,70,239,1));
      color:#fff;
      font-weight:800;
      letter-spacing:.08em;
      box-shadow:0 12px 30px rgba(37,99,235,.30), 0 0 0 1px rgba(255,255,255,.08) inset;
      position:relative;
      overflow:hidden;
    }
    .brand-icon::after{
      content:"";
      position:absolute;
      inset:-30% -50%;
      background:linear-gradient(120deg, transparent 38%, rgba(255,255,255,.30) 50%, transparent 62%);
      transform:rotate(18deg);
      animation:shine 6s linear infinite;
    }
    @keyframes shine{
      0%{transform:translateX(-40%) rotate(18deg)}
      100%{transform:translateX(70%) rotate(18deg)}
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-name{
      font-size:1.02rem;
      font-weight:800;
      letter-spacing:.02em;
    }
    .brand-sub{
      font-size:.82rem;
      color:var(--weak);
      margin-top:4px;
    }
    .navbar .nav-menu{gap:6px;align-items:center}
    .navbar .nav-link{
      color:var(--muted);
      font-weight:600;
      padding:10px 14px;
      border-radius:999px;
      position:relative;
    }
    .navbar .nav-link:hover,
    .navbar .nav-link:focus-visible{
      color:#fff;
      background:rgba(148,163,184,.08);
    }
    .navbar .nav-link.active{
      color:#fff;
      background:rgba(37,99,235,.12);
      box-shadow:0 0 0 1px rgba(37,99,235,.18) inset;
    }
    .navbar .nav-link.active::after{
      content:"";
      position:absolute;
      left:16px;
      right:16px;
      bottom:4px;
      height:2px;
      border-radius:999px;
      background:var(--grad);
      box-shadow:0 0 12px rgba(217,70,239,.42);
    }
    .nav-cta{margin-left:16px}
    .btn-neon,
    .btn-soft,
    .btn-line{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:1px solid transparent;
      border-radius:999px;
      font-weight:700;
      letter-spacing:.01em;
      transition:all .28s var(--ease);
      white-space:nowrap;
      text-decoration:none;
      cursor:pointer;
    }
    .btn-neon{
      padding:13px 22px;
      color:#fff;
      background:var(--grad);
      box-shadow:0 14px 30px rgba(37,99,235,.26), 0 10px 28px rgba(217,70,239,.18);
    }
    .btn-neon:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 42px rgba(37,99,235,.30), 0 16px 38px rgba(217,70,239,.20);
      filter:saturate(1.1);
    }
    .btn-soft{
      padding:13px 22px;
      color:#fff;
      background:rgba(15,23,42,.54);
      border-color:rgba(148,163,184,.18);
      backdrop-filter:blur(14px);
    }
    .btn-soft:hover{
      color:#fff;
      transform:translateY(-2px);
      background:rgba(37,99,235,.13);
      border-color:rgba(37,99,235,.34);
      box-shadow:0 18px 36px rgba(2,8,23,.28);
    }
    .btn-line{
      padding:11px 18px;
      color:var(--muted);
      border-color:rgba(148,163,184,.18);
      background:transparent;
    }
    .btn-line:hover{
      color:#fff;
      border-color:rgba(217,70,239,.40);
      background:rgba(148,163,184,.06);
    }

    .navbar-toggler{
      border:1px solid rgba(148,163,184,.18);
      border-radius:14px;
      padding:10px 12px;
      box-shadow:none!important;
    }
    .navbar-toggler-icon{
      width:22px;height:18px;display:inline-flex;align-items:center;justify-content:center;
      position:relative;
    }
    .navbar-toggler-icon span,
    .navbar-toggler-icon span::before,
    .navbar-toggler-icon span::after{
      content:"";
      position:absolute;
      width:22px;height:2px;border-radius:999px;
      background:linear-gradient(90deg,#fff,#CBD5E1);
    }
    .navbar-toggler-icon span::before{top:-7px;left:0}
    .navbar-toggler-icon span::after{top:7px;left:0}
    .navbar-toggler-icon span{top:8px;left:0}
    .navbar-collapse{
      padding:10px 0;
    }

    main{position:relative}
    .section{
      padding:var(--section-y) 0;
      position:relative;
    }
    .section-sm{
      padding:72px 0;
      position:relative;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:.88rem;
      font-weight:700;
      letter-spacing:.04em;
      text-transform:none;
      color:#fff;
      background:rgba(148,163,184,.08);
      border:1px solid rgba(148,163,184,.14);
      padding:8px 14px;
      border-radius:999px;
      box-shadow:0 8px 24px rgba(2,8,23,.2);
      margin-bottom:18px;
    }
    .section-kicker .dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--grad);
      box-shadow:0 0 14px rgba(217,70,239,.65);
    }
    .section-title{
      font-size:clamp(2rem, 3vw, 2.6rem);
      line-height:1.18;
      font-weight:800;
      margin:0 0 14px;
      letter-spacing:-.02em;
    }
    .section-desc{
      color:var(--muted);
      max-width:760px;
      margin:0;
      font-size:1.02rem;
    }
    .glow-text{
      background:linear-gradient(135deg, #fff 0%, #c7d2fe 40%, #f0abfc 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .pill-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      font-size:.92rem;
      color:var(--muted);
      background:rgba(15,23,42,.56);
      border:1px solid rgba(148,163,184,.16);
      transition:all .25s var(--ease);
    }
    .pill:hover{
      color:#fff;
      border-color:rgba(37,99,235,.36);
      background:rgba(37,99,235,.12);
      transform:translateY(-1px);
    }
    .pill.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(37,99,235,.24), rgba(217,70,239,.24));
      border-color:rgba(217,70,239,.42);
      box-shadow:0 0 0 1px rgba(37,99,235,.10) inset, 0 10px 24px rgba(2,8,23,.22);
    }

    .hero{
      padding:42px 0 30px;
      position:relative;
      overflow:hidden;
    }
    .hero::before,
    .hero::after{
      content:"";
      position:absolute;
      border-radius:50%;
      filter:blur(18px);
      pointer-events:none;
      opacity:.75;
    }
    .hero::before{
      width:360px;height:360px;
      right:-90px;top:10px;
      background:radial-gradient(circle, rgba(217,70,239,.22), rgba(217,70,239,0) 65%);
    }
    .hero::after{
      width:440px;height:440px;
      left:-140px;top:120px;
      background:radial-gradient(circle, rgba(37,99,235,.20), rgba(37,99,235,0) 66%);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:32px;
      align-items:stretch;
    }
    .hero-copy{
      padding:18px 0;
      position:relative;
      z-index:1;
    }
    .hero h1{
      font-size:clamp(2.1rem, 4.6vw, 4rem);
      line-height:1.12;
      font-weight:800;
      margin:12px 0 16px;
      letter-spacing:-.04em;
    }
    .hero-lead{
      font-size:1.08rem;
      color:var(--muted);
      max-width:760px;
      margin:0 0 24px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin:28px 0 24px;
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .meta-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(15,23,42,.58);
      border:1px solid rgba(148,163,184,.16);
      color:#e2e8f0;
      font-size:.92rem;
      backdrop-filter:blur(12px);
    }
    .meta-chip i{color:#93c5fd}
    .hero-card{
      background:linear-gradient(180deg, rgba(15,23,42,.82), rgba(15,23,42,.58));
      border:1px solid rgba(148,163,184,.16);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
      padding:22px;
      backdrop-filter:blur(18px);
      position:relative;
      overflow:hidden;
    }
    .hero-card::before{
      content:"";
      position:absolute;
      inset:-2px;
      border-radius:inherit;
      padding:1px;
      background:linear-gradient(135deg, rgba(37,99,235,.58), rgba(217,70,239,.42), rgba(245,185,113,.20));
      -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite:xor;
      mask-composite:exclude;
      pointer-events:none;
    }
    .console-bar{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
      color:var(--weak);
      font-size:.9rem;
    }
    .console-dots{
      display:flex;
      gap:8px;
      align-items:center;
    }
    .console-dots span{
      width:10px;height:10px;border-radius:50%;
      background:rgba(148,163,184,.45);
    }
    .console-dots span:nth-child(1){background:#f87171}
    .console-dots span:nth-child(2){background:#f59e0b}
    .console-dots span:nth-child(3){background:#22c55e}
    .search-lite{
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 16px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(7,10,18,.62);
      color:var(--weak);
      margin-bottom:16px;
    }
    .search-lite i{color:#93c5fd}
    .search-lite span{font-size:.95rem}
    .preview-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:18px;
    }
    .preview-box{
      min-height:118px;
      border-radius:20px;
      border:1px solid rgba(148,163,184,.14);
      background:
        linear-gradient(145deg, rgba(37,99,235,.12), rgba(217,70,239,.12)),
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.14), transparent 42%),
        rgba(15,23,42,.72);
      padding:16px;
      position:relative;
      overflow:hidden;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .preview-box::after{
      content:"";
      position:absolute;
      inset:auto -30% -28% auto;
      width:130px;height:130px;
      background:radial-gradient(circle, rgba(217,70,239,.36), transparent 68%);
      transform:rotate(-20deg);
      filter:blur(6px);
    }
    .preview-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(7,10,18,.68);
      border:1px solid rgba(148,163,184,.18);
      color:#fff;
      font-size:.76rem;
      font-weight:700;
      margin-bottom:12px;
    }
    .preview-title{
      font-size:1.02rem;
      font-weight:750;
      line-height:1.35;
      margin:0 0 8px;
    }
    .preview-desc{
      font-size:.9rem;
      color:var(--muted);
      margin:0;
    }
    .status-strip{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .status-item{
      flex:1 1 140px;
      min-width:140px;
      padding:12px 14px;
      border-radius:18px;
      background:rgba(15,23,42,.52);
      border:1px solid rgba(148,163,184,.12);
    }
    .status-item strong{
      display:block;
      font-size:1.02rem;
      margin-bottom:4px;
      color:#fff;
    }
    .status-item span{color:var(--weak);font-size:.9rem}

    .info-band{
      margin-top:28px;
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg, rgba(15,23,42,.92), rgba(8,14,28,.84));
      border:1px solid rgba(148,163,184,.14);
      box-shadow:var(--shadow-soft);
      padding:24px;
      overflow:hidden;
      position:relative;
    }
    .info-band::before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;
      height:1px;
      background:var(--grad-line);
      opacity:.9;
    }
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .metric-card{
      padding:18px 18px 16px;
      border-radius:20px;
      background:rgba(7,10,18,.46);
      border:1px solid rgba(148,163,184,.12);
    }
    .metric-value{
      font-size:1.7rem;
      line-height:1;
      font-weight:800;
      margin-bottom:10px;
      letter-spacing:-.03em;
    }
    .metric-label{
      color:var(--muted);
      font-size:.95rem;
      margin:0;
    }
    .metric-card .small-note{
      display:block;
      margin-top:8px;
      color:var(--weak);
      font-size:.86rem;
    }

    .glass-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
      overflow:hidden;
      position:relative;
      transition:transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:0 22px 52px rgba(2,8,23,.40);
    }
    .glass-card .card-inner{
      padding:24px;
    }
    .card-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      font-size:.8rem;
      font-weight:700;
      color:#fff;
      background:rgba(37,99,235,.14);
      border:1px solid rgba(37,99,235,.22);
      margin-bottom:14px;
    }
    .card-title{
      font-size:1.35rem;
      line-height:1.3;
      font-weight:800;
      margin:0 0 10px;
      letter-spacing:-.02em;
    }
    .card-desc{
      color:var(--muted);
      margin:0 0 16px;
      font-size:.98rem;
    }
    .feature-list{
      list-style:none;
      padding:0;
      margin:0 0 18px;
      display:grid;
      gap:10px;
    }
    .feature-list li{
      display:flex;
      gap:10px;
      color:#e2e8f0;
      align-items:flex-start;
    }
    .feature-list i{
      color:#8b5cf6;
      margin-top:4px;
      flex:0 0 auto;
    }
    .glass-footer{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      padding:0 24px 24px;
      flex-wrap:wrap;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(148,163,184,.08);
      border:1px solid rgba(148,163,184,.14);
      color:#e2e8f0;
      font-size:.8rem;
      font-weight:600;
    }
    .tag.gold{background:rgba(245,185,113,.12);border-color:rgba(245,185,113,.22);color:#fde68a}
    .tag.blue{background:rgba(37,99,235,.14);border-color:rgba(37,99,235,.24)}
    .tag.violet{background:rgba(217,70,239,.14);border-color:rgba(217,70,239,.24)}
    .mini-link{
      color:#fff;
      font-weight:700;
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .mini-link:hover{color:#dbeafe}

    .capability-layout{
      display:grid;
      grid-template-columns:.88fr 1.12fr;
      gap:24px;
      align-items:start;
      margin-top:28px;
    }
    .side-note{
      padding:24px;
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(15,23,42,.78), rgba(8,14,28,.82));
      border:1px solid rgba(148,163,184,.14);
      position:sticky;
      top:106px;
    }
    .side-note .section-title{font-size:clamp(1.8rem, 2.8vw, 2.2rem)}
    .side-note p{color:var(--muted);margin:0 0 18px}
    .inline-note{
      margin-top:18px;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(217,70,239,.09);
      border:1px solid rgba(217,70,239,.18);
      color:#f5d0fe;
      font-size:.95rem;
    }
    .feature-matrix{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .feature-matrix .glass-card{height:100%}
    .feature-icon{
      width:52px;height:52px;
      border-radius:18px;
      display:grid;place-items:center;
      margin-bottom:16px;
      background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(217,70,239,.16));
      border:1px solid rgba(148,163,184,.14);
      color:#fff;
      font-size:1.25rem;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }

    .featured-layout{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:22px;
      margin-top:28px;
    }
    .feature-hero{
      min-height:520px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 18% 16%, rgba(37,99,235,.20), transparent 34%),
        radial-gradient(circle at 82% 20%, rgba(217,70,239,.18), transparent 28%),
        linear-gradient(160deg, rgba(15,23,42,.94), rgba(7,10,18,.92));
      border:1px solid rgba(148,163,184,.14);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
      padding:28px;
    }
    .feature-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(7,10,18,.12), rgba(7,10,18,.84)),
        linear-gradient(90deg, transparent 48%, rgba(255,255,255,.03) 50%, transparent 52%);
      pointer-events:none;
    }
    .feature-hero .cover-grid{
      position:absolute;
      inset:auto 24px 24px 24px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .cover-tile{
      min-height:116px;
      border-radius:18px;
      background:
        linear-gradient(135deg, rgba(37,99,235,.24), rgba(217,70,239,.22)),
        rgba(15,23,42,.78);
      border:1px solid rgba(148,163,184,.12);
      position:relative;
      overflow:hidden;
    }
    .cover-tile::after{
      content:"";
      position:absolute;
      inset:auto -18px -18px auto;
      width:92px;height:92px;border-radius:50%;
      background:radial-gradient(circle, rgba(245,185,113,.28), transparent 68%);
      filter:blur(4px);
    }
    .feature-hero .hero-label{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(7,10,18,.66);
      border:1px solid rgba(148,163,184,.16);
      color:#fff;
      font-size:.82rem;
      font-weight:700;
      position:relative;
      z-index:1;
    }
    .feature-hero h3{
      font-size:clamp(1.8rem, 3vw, 2.5rem);
      line-height:1.18;
      font-weight:800;
      margin:18px 0 14px;
      position:relative;
      z-index:1;
      max-width:16ch;
    }
    .feature-hero p{
      color:var(--muted);
      max-width:38ch;
      position:relative;
      z-index:1;
      margin:0 0 18px;
    }
    .hero-point{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      position:relative;
      z-index:1;
    }
    .hero-point .tag{
      background:rgba(7,10,18,.58);
    }
    .stack-list{
      display:grid;
      gap:16px;
    }
    .stack-card{
      padding:20px;
      border-radius:24px;
      background:var(--panel);
      border:1px solid var(--line);
      backdrop-filter:blur(16px);
      box-shadow:var(--shadow-soft);
      transition:all .28s var(--ease);
    }
    .stack-card:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
    }
    .stack-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:12px;
    }
    .stack-top strong{
      font-size:1.03rem;
      font-weight:800;
    }
    .stack-top .mini-dot{
      width:10px;height:10px;border-radius:50%;
      background:var(--grad);
      box-shadow:0 0 12px rgba(217,70,239,.54);
      flex:0 0 auto;
    }
    .stack-card p{color:var(--muted);margin:0 0 14px;font-size:.95rem}
    .stack-card .stack-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }

    .timeline-shell{
      display:grid;
      grid-template-columns:1fr .9fr;
      gap:22px;
      align-items:start;
      margin-top:26px;
    }
    .timeline{
      display:grid;
      gap:14px;
      position:relative;
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:24px;
      top:10px;
      bottom:10px;
      width:2px;
      background:linear-gradient(180deg, rgba(37,99,235,.28), rgba(217,70,239,.38));
      opacity:.9;
    }
    .timeline-item{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:14px;
      align-items:start;
      position:relative;
    }
    .timeline-num{
      width:48px;height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(217,70,239,.16));
      border:1px solid rgba(148,163,184,.14);
      box-shadow:0 14px 24px rgba(2,8,23,.18);
      z-index:1;
      font-weight:800;
    }
    .timeline-content{
      padding:18px 18px 16px;
      border-radius:22px;
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .timeline-content h3{
      font-size:1.08rem;
      margin:0 0 8px;
      font-weight:800;
    }
    .timeline-content p{margin:0;color:var(--muted);font-size:.96rem}
    .timeline-rail{
      padding:24px;
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(15,23,42,.78), rgba(7,10,18,.8));
      border:1px solid rgba(148,163,184,.14);
      box-shadow:var(--shadow-soft);
      position:sticky;
      top:106px;
    }
    .timeline-rail .rail-item{
      padding:14px 0;
      border-bottom:1px solid rgba(148,163,184,.1);
    }
    .timeline-rail .rail-item:last-child{border-bottom:0}
    .rail-item strong{
      display:block;
      font-size:1.02rem;
      margin-bottom:6px;
    }
    .rail-item span{color:var(--muted);font-size:.93rem}

    .compare-shell{
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(15,23,42,.84), rgba(7,10,18,.86));
      border:1px solid rgba(148,163,184,.14);
      padding:24px;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
      margin-top:18px;
    }
    .compare-card{
      border-radius:22px;
      background:rgba(7,10,18,.52);
      border:1px solid rgba(148,163,184,.12);
      padding:20px;
      min-height:100%;
    }
    .compare-card.good{
      background:linear-gradient(180deg, rgba(37,99,235,.10), rgba(7,10,18,.52));
      border-color:rgba(37,99,235,.18);
    }
    .compare-card.bad{
      background:linear-gradient(180deg, rgba(148,163,184,.06), rgba(7,10,18,.52));
    }
    .compare-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:14px;
    }
    .compare-head strong{font-size:1.05rem}
    .compare-head .state{
      font-size:.82rem;
      padding:6px 10px;
      border-radius:999px;
      font-weight:700;
    }
    .state.bad{background:rgba(244,63,94,.10);color:#fecdd3;border:1px solid rgba(244,63,94,.18)}
    .state.good{background:rgba(34,197,94,.10);color:#bbf7d0;border:1px solid rgba(34,197,94,.18)}
    .compare-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .compare-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
    }
    .compare-list i{margin-top:4px}
    .compare-card.bad .compare-list i{color:#fca5a5}
    .compare-card.good .compare-list i{color:#86efac}

    .faq-shell{
      border-radius:var(--radius-xl);
      padding:24px;
      background:linear-gradient(180deg, rgba(15,23,42,.78), rgba(7,10,18,.84));
      border:1px solid rgba(148,163,184,.14);
      box-shadow:var(--shadow-soft);
    }
    .accordion{
      --bs-accordion-bg:transparent;
      --bs-accordion-border-color:transparent;
      --bs-accordion-btn-icon:none;
      --bs-accordion-btn-focus-box-shadow:none;
      --bs-accordion-active-color:#fff;
      --bs-accordion-color:#fff;
      --bs-accordion-btn-color:#fff;
      --bs-accordion-btn-padding-x:0;
      --bs-accordion-btn-padding-y:0;
    }
    .accordion-item{
      background:rgba(7,10,18,.50);
      border:1px solid rgba(148,163,184,.12);
      border-radius:20px!important;
      overflow:hidden;
      margin-bottom:14px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .accordion-button{
      background:transparent;
      color:#fff;
      padding:20px 22px;
      font-weight:700;
      border:0;
      box-shadow:none;
      position:relative;
    }
    .accordion-button::after{
      content:"+";
      background:none;
      width:auto;height:auto;
      filter:none;
      color:#cbd5e1;
      font-size:1.3rem;
      font-weight:400;
      transform:none!important;
      margin-left:auto;
    }
    .accordion-button:not(.collapsed){
      color:#fff;
      background:linear-gradient(90deg, rgba(37,99,235,.18), rgba(217,70,239,.08));
      box-shadow:inset 3px 0 0 rgba(217,70,239,.85);
    }
    .accordion-button:not(.collapsed)::after{content:"–";color:#fff}
    .accordion-body{
      padding:0 22px 20px;
      color:var(--muted);
      border-left:3px solid rgba(217,70,239,.55);
      margin-left:22px;
      padding-left:18px;
    }

    .contact-band{
      padding:28px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 18% 20%, rgba(37,99,235,.16), transparent 30%),
        radial-gradient(circle at 82% 22%, rgba(217,70,239,.16), transparent 28%),
        linear-gradient(180deg, rgba(15,23,42,.95), rgba(7,10,18,.88));
      border:1px solid rgba(148,163,184,.14);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .contact-band::before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;
      height:1px;
      background:var(--grad-line);
    }
    .contact-grid{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:22px;
      align-items:start;
    }
    .contact-note{
      padding:20px 20px 18px;
      border-radius:22px;
      background:rgba(7,10,18,.45);
      border:1px solid rgba(148,163,184,.12);
    }
    .contact-note h3{
      margin:0 0 12px;
      font-size:1.4rem;
      font-weight:800;
    }
    .contact-note p{color:var(--muted);margin:0 0 18px}
    .contact-note .policy{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .policy-line{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#e2e8f0;
      font-size:.95rem;
    }
    .policy-line i{color:#93c5fd;margin-top:4px}
    .feedback-form{
      padding:20px;
      border-radius:22px;
      background:rgba(7,10,18,.52);
      border:1px solid rgba(148,163,184,.12);
    }
    .feedback-form .form-label{
      color:#e2e8f0;
      font-weight:600;
      margin-bottom:8px;
    }
    .feedback-form .form-control,
    .feedback-form .form-select,
    .feedback-form textarea{
      background:rgba(15,23,42,.78);
      border:1px solid rgba(148,163,184,.22);
      color:#fff;
      border-radius:16px;
      padding:13px 14px;
      box-shadow:none;
    }
    .feedback-form .form-control::placeholder,
    .feedback-form textarea::placeholder{
      color:#94A3B8;
    }
    .feedback-form .form-control:focus,
    .feedback-form .form-select:focus,
    .feedback-form textarea:focus{
      border-color:rgba(37,99,235,.7);
      box-shadow:0 0 0 4px rgba(37,99,235,.18);
      background:rgba(15,23,42,.92);
      color:#fff;
    }
    .feedback-form .form-control,
    .feedback-form .form-select{min-height:48px}
    .feedback-form textarea{min-height:128px;resize:vertical}
    .submit-line{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:16px;
      flex-wrap:wrap;
    }
    .submit-line .help{
      color:var(--weak);
      font-size:.88rem;
    }

    .breadcrumb-shell{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:.92rem;
      margin-bottom:18px;
    }
    .breadcrumb-shell a{color:var(--muted)}
    .breadcrumb-shell a:hover{color:#fff}
    .breadcrumb-shell .sep{opacity:.45}
    .breadcrumb-shell .current{color:#fff}

    .site-footer{
      margin-top:var(--section-y);
      padding:40px 0 22px;
      background:linear-gradient(180deg, rgba(7,10,18,.8), rgba(5,8,15,1));
      border-top:1px solid rgba(148,163,184,.14);
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;height:1px;
      background:var(--grad-line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr 1fr;
      gap:22px;
      padding:18px 0 26px;
    }
    .footer-brand p{
      color:var(--muted);
      margin:16px 0 0;
      font-size:.95rem;
    }
    .footer-title{
      font-size:1rem;
      font-weight:800;
      margin-bottom:14px;
      color:#fff;
    }
    .footer-links{
      list-style:none;
      padding:0;margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
    }
    .footer-links a:hover{
      color:#fff;
      padding-left:4px;
    }
    .compliance-box{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(15,23,42,.64);
      border:1px solid rgba(148,163,184,.12);
      color:#e2e8f0;
      font-size:.92rem;
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
      padding-top:18px;
      border-top:1px solid rgba(148,163,184,.12);
      color:var(--weak);
      font-size:.9rem;
    }

    .noise-layer{
      position:absolute;
      inset:0;
      pointer-events:none;
      background-image:radial-gradient(rgba(255,255,255,.05) 0.7px, transparent 0.7px);
      background-size:18px 18px;
      opacity:.10;
      mix-blend-mode:screen;
    }

    @media (max-width: 991.98px){
      .section{padding:78px 0}
      .section-sm{padding:58px 0}
      .hero-grid,
      .capability-layout,
      .featured-layout,
      .timeline-shell,
      .contact-grid{
        grid-template-columns:1fr;
      }
      .side-note,
      .timeline-rail{
        position:relative;
        top:auto;
      }
      .metric-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .feature-matrix,
      .compare-grid,
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .navbar-collapse{
        margin-top:14px;
        padding:16px;
        border-radius:22px;
        background:rgba(7,10,18,.92);
        border:1px solid rgba(148,163,184,.12);
        box-shadow:var(--shadow-soft);
      }
      .nav-cta{
        margin-left:0;
        margin-top:12px;
      }
      .navbar .nav-menu{
        align-items:stretch;
      }
      .navbar .nav-link{
        border-radius:16px;
      }
      .navbar .nav-link.active::after{
        left:12px;
        right:auto;
        width:34px;
      }
    }

    @media (max-width: 767.98px){
      :root{--section-y:68px}
      .navbar{padding:12px 0}
      .brand-icon{width:40px;height:40px}
      .brand-name{font-size:.97rem}
      .brand-sub{font-size:.78rem}
      .hero{padding:22px 0 12px}
      .hero h1{font-size:clamp(2rem, 8vw, 2.7rem)}
      .hero-actions,
      .footer-bottom,
      .glass-footer{
        flex-direction:column;
        align-items:stretch;
      }
      .hero-actions .btn-neon,
      .hero-actions .btn-soft,
      .hero-actions .btn-line,
      .submit-line .btn-neon,
      .submit-line .btn-soft{
        width:100%;
      }
      .preview-grid,
      .feature-matrix,
      .compare-grid,
      .metric-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .section-title{font-size:clamp(1.8rem, 7vw, 2.2rem)}
      .feature-hero{min-height:460px}
      .feature-hero .cover-grid{grid-template-columns:1fr 1fr; inset:auto 18px 18px 18px}
      .timeline::before{left:22px}
      .timeline-item{grid-template-columns:48px 1fr}
      .accordion-button{padding:18px 18px}
      .accordion-body{margin-left:18px;padding-left:16px}
      .contact-band{padding:20px}
      .feedback-form, .contact-note, .stack-card, .compare-shell, .faq-shell, .side-note{
        padding:18px;
      }
    }

    @media (max-width: 575.98px){
      .container{padding-left:16px;padding-right:16px}
      .hero-card,
      .glass-card,
      .stack-card,
      .compare-card,
      .timeline-content,
      .metric-card{
        border-radius:18px;
      }
      .hero-lead,
      .section-desc{
        font-size:.96rem;
      }
      .status-strip{gap:8px}
      .status-item{min-width:100%}
      .tag-row{gap:8px}
      .pill,.tag,.meta-chip{font-size:.84rem}
      .preview-box{min-height:104px}
      .feature-hero{padding:18px}
      .feature-hero h3{max-width:none}
      .feature-hero .cover-grid{
        grid-template-columns:1fr;
      }
      .timeline-item{
        grid-template-columns:42px 1fr;
      }
      .timeline-num{
        width:42px;height:42px;border-radius:14px;
      }
      .breadcrumb-shell{font-size:.84rem}
    }