/* --- CSS VARIABLES & RESET --- */
    :root {
      --bg-dark: #050505;
      --bg-card: #0f1115;
      --bg-card-hover: #16191f;
      --accent-primary: #00f0ff;
      --accent-secondary: #00c8ff;
      --accent-glow: rgba(0, 240, 255, 0.4);
      --text-main: #ffffff;
      --text-muted: #9ca3af;
      --border-color: rgba(255, 255, 255, 0.1);
      --font-heading: 'Space Grotesk', sans-serif;
      --font-body: 'Inter', sans-serif;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
      --success: #10b981;
      --danger: #ef4444;
    }

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

    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: var(--font-body);
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a { text-decoration: none; color: inherit; cursor: pointer; transition: var(--transition); }
    ul { list-style: none; }
    img { max-width: 100%; display: block; }

    /* --- LAYOUT & PAGES (SPA) --- */
    main { flex: 1; position: relative; }
    
    /* SPA Transition Logic */
    .page {
      display: none;
      opacity: 0;
      visibility: hidden;
    }
    .page.active {
      display: block;
      opacity: 1;
      visibility: visible;
      isolation: isolate;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* --- NAVIGATION --- */
    header {
      position: fixed;
      top: 0; left: 0; width: 100%;
      background: rgba(5, 5, 5, 0.9);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      z-index: 1000;
      padding: 10px 0;
      height: 100px; /* Fixed height to accommodate larger logo */
    }

    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }

    .logo-brand {
      font-family: var(--font-heading);
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      background: linear-gradient(135deg, #ffffff 0%, var(--accent-primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
    }

    .logo-link {
      display: flex;
      align-items: center;
      height: 100%;
    }
    
    /* HEADER LOGO STYLE - BIGGEST */
    .logo-img {
      height: 80px; 
      width: auto;
      border-radius: 0;
      mix-blend-mode: screen;
      box-shadow: none;
    }

    .nav-links { display: flex; gap: 32px; }
    .nav-link { font-size: 0.95rem; color: var(--text-muted); font-weight: 500; position: relative; }
    .nav-link:hover, .nav-link.active { color: var(--accent-primary); }
    .nav-link.active::after {
      content: ''; position: absolute; bottom: -5px; left: 0; width: 100%; height: 2px; background: var(--accent-primary);
    }
    
    .nav-btn {
      background: var(--accent-primary);
      color: #000;
      padding: 10px 24px;
      border-radius: 6px;
      font-weight: 600;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }
    .nav-btn:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 0 15px var(--accent-glow); }

    /* --- UTILITIES --- */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      position: relative;
    }

    .section-label {
      font-size: 0.875rem;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--accent-primary);
      margin-bottom: 16px;
      display: inline-block;
      font-weight: 600;
    }

    .section-title {
      font-family: var(--font-heading);
      font-size: 2.5rem;
      line-height: 1.1;
      margin-bottom: 24px;
      background: linear-gradient(to right, #fff, #a5a5a5);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-body { font-size: 1.125rem; color: var(--text-muted); max-width: 800px; }
    
    .btn-primary, .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: 8px;
      font-weight: 600;
      transition: var(--transition);
      font-size: 1rem;
      border: none;
      cursor: pointer;
    }
    .btn-primary { background: var(--accent-primary); color: #000; box-shadow: 0 0 20px var(--accent-glow); }
    .btn-primary:hover { background: #fff; box-shadow: 0 0 30px rgba(255, 255, 255, 0.5); transform: translateY(-2px); }
    .btn-secondary { background: transparent; color: var(--text-main); border: 1px solid var(--border-color); }
    .btn-secondary:hover { border-color: var(--text-main); background: rgba(255, 255, 255, 0.05); }

    /* --- HERO SECTION (HOME) --- */
    .hero {
      position: relative;
      min-height: 90vh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      padding-top: 120px; /* Adjusted for taller header */
      background-image: url('https://z-cdn-media.chatglm.cn/files/8e110591-5d74-4ff9-9a17-5efbc20a209b.jpeg?auth_key=1878994351-90b60c3a90744d5f95bbd410c3b07aad-0-66f880cd1a34113918f0b44ba22902d5');
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
    }
    .hero-overlay { position: absolute; top:0; left:0; width:100%; height:100%; background: radial-gradient(circle at center, rgba(5, 5, 5, 0.6) 0%, rgba(5, 5, 5, 0.95) 100%); z-index: 1; pointer-events: none; }
    
    .hero-content {
      display: grid;
      grid-template-columns: 1fr 1.5fr; 
      gap: 40px;
      align-items: center;
      width: 100%;
      max-width: 1300px;
      margin: 0 auto;
      padding: 0 24px;
      z-index: 2; position: relative;
    }

    .hero-badge {
      display: inline-block; padding: 6px 16px;
      background: rgba(0, 240, 255, 0.1); border: 1px solid rgba(0, 240, 255, 0.2);
      border-radius: 20px; color: var(--accent-primary); font-size: 0.8rem; font-weight: 600; margin-bottom: 24px;
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
    }
    .hero-text h1 { font-family: var(--font-heading); font-size: 4rem; line-height: 1.1; margin-bottom: 24px; font-weight: 700; text-shadow: 0 4px 20px rgba(0,0,0,0.5); }
    .hero-text h1 em { color: var(--accent-primary); font-style: normal; }
    .hero-sub { font-size: 1.25rem; color: #d1d5db; margin-bottom: 40px; max-width: 480px; text-shadow: 0 1px 4px rgba(0,0,0,0.8); }
    .hero-actions { display: flex; gap: 16px; }

    /* HERO IMAGE ANIMATION - 2.5D Float & Orbit */
    .hero-visual { position: relative; height: 600px; display: flex; justify-content: center; align-items: center; perspective: 1000px; }
    
    .device-orbit { 
      position: absolute; 
      width: 400px; 
      height: 400px; 
      border: 1px dashed rgba(0, 240, 255, 0.2); 
      border-radius: 50%; 
      animation: spin 20s linear infinite; 
      z-index: 5; 
    }
    .device-orbit::before { 
      content: ''; 
      position: absolute; 
      top: -6px; left: 50%; 
      transform: translateX(-50%);
      width: 12px; height: 12px; 
      background: var(--accent-primary); 
      border-radius: 50%; 
      box-shadow: 0 0 15px var(--accent-primary); 
    }
    
    #hero-device-img { 
      width: 100%; 
      max-width: 420px; 
      height: auto; 
      position: relative; 
      z-index: 10; 
      transform-style: preserve-3d; 
      animation: float 6s ease-in-out infinite; 
      filter: drop-shadow(0 30px 40px rgba(0,0,0,0.6));
      cursor: grab;
    }
    #hero-device-img:active { cursor: grabbing; }

    /* Animation Keyframes */
    @keyframes floatSimple {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-18px); }
    }
    @keyframes float { 
      0%, 100% { transform: translateY(0) rotateY(-5deg) rotateX(5deg); } 
      50% { transform: translateY(-20px) rotateY(5deg) rotateX(-5deg); } 
    }
    @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

    /* --- SECTIONS --- */
    section { padding: 100px 0; border-bottom: 1px solid rgba(255,255,255,0.03); }
    
    /* SECURITY SECTION - REDESIGNED */
    .security-grid { 
      display: grid; 
      grid-template-columns: 1fr 1fr; 
      gap: 60px; 
      align-items: center; 
      margin-bottom: 80px; 
    }
    
    .security-text-area { padding-right: 20px; }
    
    /* The New Image Styling */
    .security-visual-container {
      position: relative;
      height: 100%;
      min-height: 400px;
      border-radius: 24px;
      overflow: hidden;
    }
    .security-visual-container::after {
      content: ''; position: absolute; inset: 0;
      background: linear-gradient(45deg, rgba(0, 240, 255, 0.1), transparent);
      pointer-events: none;
    }
    .security-visual-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 20px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
      border: 1px solid var(--border-color);
      transition: transform 0.5s ease;
    }
    .security-visual-container:hover img {
      transform: scale(1.03);
    }

    /* Features List (Moved below grid) */
    .security-features { 
      display: grid;
      grid-template-columns: repeat(3, 1fr); 
      gap: 24px;
    }
    .feature-item { 
      display: flex; 
      flex-direction: column; 
      gap: 16px; 
      background: var(--bg-card); 
      padding: 32px 24px; 
      border-radius: 16px; 
      border: 1px solid var(--border-color); 
      transition: var(--transition); 
      text-align: center; 
      position: relative;
      overflow: hidden;
    }
    .feature-item::before {
      content: ''; position: absolute; top:0; left:0; width:100%; height:3px; background: var(--accent-primary);
      transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease;
    }
    .feature-item:hover { 
      transform: translateY(-8px); 
      border-color: var(--accent-primary); 
      box-shadow: 0 15px 40px -10px rgba(0, 240, 255, 0.15); 
    }
    .feature-item:hover::before { transform: scaleX(1); }

    /* SECURITY ICON STYLE (IMAGES) */
    .feature-icon { 
      width: 60px;
      height: 60px;
      margin: 0 auto 16px auto;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .feature-icon img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
      transition: transform 0.3s ease;
    }
    .feature-item:hover .feature-icon img {
      transform: scale(1.1);
    }

    .feature-content h4 { margin-bottom: 12px; font-family: var(--font-heading); font-size: 1.2rem; color: #fff; }
    .feature-content p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.5; }
    
    /* DOES/DOESN'T (Kept mostly same but refined) */
    .does-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 60px; }
    .does-card { padding: 32px; border-radius: 16px; background: var(--bg-card); border: 1px solid var(--border-color); transition: var(--transition); }
    .does-card:hover { background: var(--bg-card-hover); }
    .does-card h4 { margin-bottom: 20px; font-size: 1.1rem; display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); }
    .does-list li { position: relative; padding-left: 28px; margin-bottom: 14px; color: var(--text-muted); font-size: 0.95rem; line-height: 1.5; }
    .does-yes h4 { color: var(--success); } 
    .does-yes li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: bold; }
    .does-no h4 { color: var(--danger); } 
    .does-no li::before { content: '✕'; position: absolute; left: 0; color: var(--danger); font-weight: bold; }

    /* APP SECTION - UPDATED ICONS (NO BACKGROUND SQUARES) */
    .app-icons-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
    .app-icon-card { background: rgba(255,255,255,0.03); border: 1px solid var(--border-color); padding: 24px; border-radius: 12px; text-align: center; transition: var(--transition); }
    .app-icon-card:hover { background: var(--bg-card-hover); border-color: var(--accent-primary); transform: translateY(-5px); }
    
    .app-icon-card .icon { 
        width: 60px; 
        height: 60px; 
        margin: 0 auto 16px auto; 
        display: flex; 
        align-items: center; 
        justify-content: center; 
        /* Removed background, border-radius, shadow, overflow */
    }
    .app-icon-card .icon img { 
        width: 60px; 
        height: 60px; 
        object-fit: contain; 
        transition: transform 0.3s ease; 
    }
    .app-icon-card:hover .icon img {
        transform: scale(1.2);
    }
    
    .app-icon-card h4 { margin-bottom: 8px; font-size: 1.1rem; color: #fff; }
    .app-icon-card p { font-size: 0.9rem; color: var(--text-muted); }

    /* ===== PRODUCT SHOWCASE CAROUSEL ===== */
    .showcase-section {
      padding: 100px 0;
      border-bottom: 1px solid rgba(255,255,255,0.03);
      background: radial-gradient(ellipse at 50% 0%, rgba(0,240,255,0.04) 0%, transparent 70%);
    }

    .showcase-layout {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 70px;
      align-items: center;
      margin-bottom: 50px;
    }

    /* --- LEFT: specs --- */
    .showcase-info { display: flex; flex-direction: column; gap: 20px; }

    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 14px 4px;
      background: transparent;
      border-radius: 0;
      border: none;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      transition: border-color 0.3s, transform 0.3s;
      cursor: default;
    }
    .spec-item:last-of-type { border-bottom: none; }
    .spec-item:hover {
      border-color: rgba(0,240,255,0.2);
      box-shadow: none;
      transform: translateX(6px);
    }
    .spec-item.active-spec {
      border-color: rgba(0,240,255,0.3);
      background: transparent;
    }
    .spec-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; }
    .spec-icon img { width: 28px; height: 28px; object-fit: contain; mix-blend-mode: screen; filter: brightness(0.85); transition: filter 0.3s ease; }
    .spec-item:hover .spec-icon img { filter: brightness(1.4) sepia(1) saturate(6) hue-rotate(155deg); }
    .spec-item strong { display: block; color: #fff; font-size: 1rem; margin-bottom: 4px; font-family: var(--font-heading); }
    .spec-item p { color: var(--text-muted); font-size: 0.88rem; margin: 0; line-height: 1.5; }

    /* --- RIGHT: carousel --- */
    .carousel-wrapper { position: relative; }

    .carousel-track-outer {
      overflow: hidden;
      border-radius: 24px;
      background: #000;
      border: 1px solid var(--border-color);
      box-shadow: 0 30px 80px rgba(0,0,0,0.7);
      position: relative;
    }

    .carousel-track {
      display: flex;
      transition: transform 0.55s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

    .carousel-slide {
      flex: 0 0 100%;
      position: relative;
    }
    .carousel-slide img {
      width: 100%;
      display: block;
      object-fit: contain;
      max-height: 500px;
    }

    .carousel-slide-label {
      position: absolute;
      top: 16px; left: 16px;
      background: rgba(5,5,5,0.85);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 20px;
      padding: 6px 16px;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--text-muted);
    }

    /* Prev / Next buttons */
    .carousel-btn {
      position: absolute;
      top: 50%; transform: translateY(-50%);
      width: 44px; height: 44px;
      border-radius: 50%;
      background: rgba(10,10,12,0.9);
      border: 1px solid rgba(255,255,255,0.12);
      color: #fff;
      font-size: 1.1rem;
      cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: all 0.25s ease;
      z-index: 10;
      backdrop-filter: blur(6px);
    }
    .carousel-btn:hover {
      background: rgba(0,240,255,0.15);
      border-color: var(--accent-primary);
      box-shadow: 0 0 16px rgba(0,240,255,0.3);
    }
    .carousel-btn-prev { left: -22px; }
    .carousel-btn-next { right: -22px; }

    /* Dots */
    .carousel-dots {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-top: 20px;
    }
    .carousel-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      background: rgba(255,255,255,0.15);
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
      padding: 0;
    }
    .carousel-dot.active {
      background: var(--accent-primary);
      box-shadow: 0 0 10px rgba(0,240,255,0.6);
      width: 24px;
      border-radius: 4px;
    }

    /* Specs bar */
    .showcase-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 28px 40px;
    }
    .showcase-bar-item { flex: 1; text-align: center; }
    .bar-value {
      display: block;
      font-family: var(--font-heading);
      font-size: 2rem;
      font-weight: 700;
      color: var(--accent-primary);
      line-height: 1;
      margin-bottom: 8px;
    }
    .bar-label { font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
    .showcase-bar-divider { width: 1px; height: 50px; background: var(--border-color); flex-shrink: 0; }

    @media (max-width: 900px) {
      .showcase-layout { grid-template-columns: 1fr; gap: 40px; }
      .carousel-btn-prev { left: 8px; }
      .carousel-btn-next { right: 8px; }
      .showcase-bar { flex-wrap: wrap; gap: 24px; }
      .showcase-bar-divider { display: none; }
    }

    /* APP SECTION TWO-COLUMN */
    .app-section-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 70px;
      align-items: center;
    }
    .app-section-left { display: flex; flex-direction: column; }
    .app-section-left .section-title { margin-bottom: 20px; }
    .app-section-left .section-body { margin-bottom: 40px; }
    .app-section-left .app-icons-grid { grid-template-columns: 1fr 1fr; margin-top: 0; }

    .app-section-visual { position: relative; }
    .app-visual-inner {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 30px 70px rgba(0,0,0,0.6);
    }
    .app-visual-inner img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      border-radius: 24px;
      transition: transform 0.5s ease;
    }
    .app-visual-inner:hover img { transform: scale(1.03); }
    .app-visual-inner::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(0,240,255,0.08), transparent 60%);
      pointer-events: none;
      border-radius: 24px;
    }
    .app-visual-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(5,5,5,0.85);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(0,240,255,0.25);
      border-radius: 30px;
      padding: 8px 16px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .badge-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      background: var(--accent-primary);
      box-shadow: 0 0 8px var(--accent-primary);
      animation: pulse 2s ease-in-out infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.6; transform: scale(1.3); }
    }
    @media (max-width: 900px) {
      .app-section-grid { grid-template-columns: 1fr; gap: 40px; }
      .app-section-left .app-icons-grid { grid-template-columns: 1fr 1fr; }
    }

    /* COINS */
    .coins-section { overflow: hidden; background: #08090c; padding: 80px 0; }
    .coins-marquee { width: 100%; overflow: hidden; position: relative; mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent); }
    .coins-track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
    .coin-pill { font-family: var(--font-heading); font-size: 1.5rem; color: rgba(255,255,255,0.15); margin: 0 30px; white-space: nowrap; font-weight: 700; cursor: default; transition: color 0.3s; user-select: none;}
    .coin-pill:hover { color: var(--text-main); text-shadow: 0 0 10px rgba(255,255,255,0.5); }
    @keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

    /* PRODUCT PAGE */
    .product-detail-wrapper { padding-top: 140px; display: flex; gap: 80px; align-items: center; flex-wrap: wrap; }
    .product-detail-visual { flex: 1; min-width: 300px; display: flex; justify-content: center; position: relative; }
    .product-glow { position: absolute; width: 300px; height: 300px; background: var(--accent-primary);
      opacity: 0.15; filter: blur(80px); border-radius: 50%; z-index: 0; pointer-events: none; top: 50%; left: 50%; transform: translate(-50%, -50%); }
    .product-detail-visual img { 
      width: 100%; max-width: 350px;
      filter: drop-shadow(0 30px 40px rgba(0,0,0,0.6)); position: relative; z-index: 1;
      animation: floatSimple 8s ease-in-out infinite;
    }
    .product-detail-info { flex: 1; min-width: 300px; }
    .product-price { font-size: 3.5rem; font-weight: 700; margin: 20px 0; color: var(--text-main); text-shadow: 0 0 20px rgba(255,255,255,0.1); }
    .product-features-list { margin: 30px 0; }
    .product-features-list li { margin-bottom: 12px; display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: 1.05rem; }
    .product-features-list li span { color: var(--accent-primary); }

    /* CHECKOUT FORM */
    .checkout-container { max-width: 700px; margin: 140px auto 60px; padding: 40px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 24px; box-shadow: 0 20px 50px rgba(0,0,0,0.3); }
    .form-group { margin-bottom: 24px; }
    .form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 0.9rem; color: var(--text-muted); }
    .form-control { width: 100%; padding: 14px 16px; background: #050505; border: 1px solid var(--border-color); border-radius: 8px; color: #fff; font-family: var(--font-body); font-size: 1rem; transition: var(--transition); }
    .form-control:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1); background: #0a0a0a; }
    .checkout-summary { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; font-size: 1.5rem; font-weight: 700; }
    
    /* ABOUT PAGE */
    .about-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; padding: 140px 24px 60px; max-width: 1200px; margin: 0 auto; }
    .about-visual { transform: translateZ(0); }
    .about-visual img { width: 100%; border-radius: 20px; box-shadow: 0 25px 50px rgba(0,0,0,0.5); filter: contrast(1.1) brightness(0.9); transition: transform 0.5s ease; will-change: auto; }
    .about-visual img:hover { transform: scale(1.02); }
    .company-details-list p { margin-bottom: 16px; color: var(--text-muted); }
    .company-details-list strong { color: var(--accent-primary); display: inline-block; min-width: 120px; }

    /* LEGAL PAGES (Standard) */
    .legal-content { max-width: 800px; margin: 140px auto 60px; padding: 0 24px; }
    .legal-content h2 { font-family: var(--font-heading); margin: 40px 0 20px; font-size: 1.8rem; color: #fff; }
    .legal-content h3 { font-family: var(--font-heading); margin: 30px 0 15px; font-size: 1.4rem; color: #e5e7eb; }
    .legal-content p { margin-bottom: 20px; color: var(--text-muted); font-size: 1.05rem; }
    .legal-content ul { list-style: disc; padding-left: 24px; margin-bottom: 24px; color: var(--text-muted); }
    .legal-content li { margin-bottom: 10px; }

    /* FOOTER */
    footer {
      background: #020202;
      border-top: 1px solid var(--border-color);
      padding: 80px 0 40px;
      margin-top: auto;
      font-size: 0.9rem;
      color: #6b7280;
    }
    .footer-content { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 60px; }
    
    /* Footer Logo Styling - BIGGEST */
    .footer-logo-img {
      height: 90px; 
      width: auto;
      margin-bottom: 24px;
      border-radius: 0;
      mix-blend-mode: screen;
      display: block;
      transition: opacity 0.3s ease;
    }
    .footer-logo-img:hover { opacity: 0.8; }
    
    .footer-col h4 { color: #fff; margin-bottom: 24px; font-family: var(--font-heading); font-size: 1.1rem; }
    .footer-col p { margin-bottom: 12px; }
    .footer-col a { color: var(--text-muted); transition: color 0.3s; }
    .footer-col a:hover { color: var(--accent-primary); }
    .footer-bottom { text-align: center; margin-top: 80px; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.05); font-size: 0.85rem; }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .hero-content, .security-grid, .does-grid, .app-icons-grid, .product-detail-wrapper, .about-wrapper { 
        grid-template-columns: 1fr; 
        flex-direction: column; 
        gap: 50px; 
      }
      .hero { padding-top: 140px; text-align: center; }
      .hero-content { display: flex; flex-direction: column-reverse; }
      .hero-actions { justify-content: center; }
      .hero-text h1 { font-size: 3rem; }
      .nav-links { display: none; } /* Simplified mobile handling */
      .product-detail-visual img { margin-bottom: 30px; }
      #hero-device-img { max-width: 300px; width: 100%; } 
      .device-orbit { width: 280px; height: 280px; } 
      .hero-visual { height: 400px; margin-top: 20px; }
      .security-features { grid-template-columns: 1fr; } 
      .app-icons-grid { grid-template-columns: 1fr 1fr; }
    }
    
    @media (max-width: 768px) {
      /* MOBILE ADJUSTMENTS FOR LARGER DESKTOP LOGOS */
      header { height: auto; padding: 15px 0; } /* Auto height on mobile */
      .nav-container { flex-wrap: wrap; height: auto; }
      .logo-link { height: 50px; margin-bottom: 10px; } 
      .logo-img { height: 50px; border-radius: 6px; }
      
      .footer-logo-img { height: 70px; } /* Reasonable size for mobile footer */
      
      .btn-primary, .btn-secondary { width: 100%; }
      .hero-actions { flex-direction: column; width: 100%; }
    }
    
    @media (max-width: 480px) {
      .hero-text h1 { font-size: 2.2rem; }
      .section-title { font-size: 2rem; }
    }

    /* ===== FAQ ===== */
    .faq-section { padding: 100px 0; border-bottom: 1px solid rgba(255,255,255,0.03); position: relative; }
    .faq-section::before {
      content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
      width: 600px; height: 1px;
      background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
      opacity: 0.4;
    }
    .faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 860px; margin: 0 auto; }
    .faq-item { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; overflow: hidden; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
    .faq-item.open { border-color: rgba(0, 240, 255, 0.35); box-shadow: 0 8px 32px -8px rgba(0, 240, 255, 0.12); }
    .faq-question {
      width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 20px;
      padding: 22px 28px; background: none; border: none; color: var(--text-main);
      font-family: var(--font-heading); font-size: 1.05rem; font-weight: 600;
      text-align: left; cursor: pointer; transition: color 0.25s ease;
    }
    .faq-question:hover { color: var(--accent-primary); }
    .faq-item.open .faq-question { color: var(--accent-primary); }
    .faq-icon {
      flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
      border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: center;
      transition: all 0.3s ease; color: var(--text-muted);
    }
    .faq-item.open .faq-icon { background: rgba(0,240,255,0.1); border-color: var(--accent-primary); color: var(--accent-primary); transform: rotate(45deg); }
    .faq-icon svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
    .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1); }
    .faq-item.open .faq-answer { max-height: 400px; }
    .faq-answer-inner { padding: 0 28px 24px; padding-top: 20px; color: var(--text-muted); font-size: 0.97rem; line-height: 1.75; border-top: 1px solid rgba(255,255,255,0.05); }
    .faq-num { font-size: 0.75rem; color: var(--accent-primary); opacity: 0.6; font-weight: 500; letter-spacing: 1px; margin-right: 6px; }
    .faq-question-text { flex: 1; }
    @media (max-width: 768px) {
      .faq-section { padding: 70px 0; }
      .faq-question { padding: 18px 20px; font-size: 0.95rem; }
      .faq-answer-inner { padding: 0 20px 20px; padding-top: 16px; }
    }
  

/* Force visible content */
.page {
    display:block !important;
    opacity:1 !important;
    visibility:visible !important;
}

    /* ===== MOBILE BURGER MENU ===== */
    .burger {
      display: none;
      z-index: 1050;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 40px;
      height: 40px;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      cursor: pointer;
      padding: 8px;
      transition: border-color 0.3s;
      flex-shrink: 0;
    }
    .burger:hover { border-color: var(--accent-primary); }
    .burger span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: all 0.3s ease;
      transform-origin: center;
    }
    .burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
    .burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(5,5,5,0.97);
      backdrop-filter: blur(16px);
      z-index: 1100;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 12px;
      padding: 40px 24px;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu-close {
      position: absolute;
      top: 24px; right: 24px;
      width: 40px; height: 40px;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      color: var(--text-main);
      font-size: 1.4rem;
      cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: border-color 0.3s;
    }
    .mobile-menu-close:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
    .mobile-menu a {
      font-family: var(--font-heading);
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s;
      text-align: center;
    }
    .mobile-menu a:hover, .mobile-menu a.active { color: var(--accent-primary); }
    .mobile-menu .mobile-btn {
      margin-top: 20px;
      background: var(--accent-primary);
      color: #000;
      padding: 16px 40px;
      border-radius: 8px;
      font-weight: 700;
      font-size: 1.1rem;
      text-decoration: none;
    }

    @media (max-width: 900px) {
      .nav-links { display: none !important; }
      .burger { display: flex; }
    }