:root {
    --blue: #1E3A5F;
    --blue-light: #2A4F82;
    --blue-dark: #152D4A;
    --teal: #0D9488;
    --teal-light: #14B8A6;
    --amber: #F59E0B;
    --amber-light: #FCD34D;
    --bg: #F8FAFC;
    --bg-white: #FFFFFF;
    --text: #1E293B;
    --text-light: #475569;
    --text-muted: #94A3B8;
    --border: #E2E8F0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1), 0 2px 6px rgba(0,0,0,0.06);
    --shadow-lg: 0 20px 48px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.08);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  /* ===== Reset & Base ===== */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; font-size: 16px; }
  body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
  }
  a { text-decoration: none; color: inherit; }
  img { max-width: 100%; }
  ul { list-style: none; }

  /* ===== Utility ===== */
  .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
  .section { padding: 96px 0; }
  .section-sm { padding: 64px 0; }
  .section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--blue);
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
  }
  .section-sub {
    font-size: 1.1rem;
    color: var(--text-light);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px;
    line-height: 1.75;
  }
  .tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
  }
  .tag-blue { background: rgba(30,58,95,0.1); color: var(--blue); }
  .tag-teal { background: rgba(13,148,136,0.12); color: var(--teal); }
  .tag-amber { background: rgba(245,158,11,0.15); color: #92400E; }

  /* ===== Scroll Reveal ===== */
  .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.65s ease, transform 0.65s ease;
  }
  .reveal.visible { opacity: 1; transform: none; }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }

  /* ===== Buttons ===== */
  .btn {
   /* display: inline-flex;*/
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
  }
  .btn-amber {
    background: var(--amber);
    color: #1a1a1a;
    border-color: var(--amber);
  }
  .btn-amber:hover { background: #E08A00; border-color: #E08A00; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.4); }
  .btn-outline {
    background: transparent;
    color: var(--bg-white);
    border-color: rgba(255,255,255,0.6);
  }
  .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: white; transform: translateY(-2px); }
  .btn-outline-blue {
    background: transparent;
    color: var(--blue);
    border-color: var(--blue);
  }
  .btn-outline-blue:hover { background: var(--blue); color: white; transform: translateY(-2px); }

  /* ===== Navbar ===== */
  #navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(248,250,252,0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
  }
  #navbar.scrolled {
    background: rgba(255,255,255,0.97);
    box-shadow: var(--shadow-sm);
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
  }
  .nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--blue);
    letter-spacing: -0.01em;
  }
  .nav-logo-mark {
    width: 38px; height: 38px;
    background: var(--blue);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  .nav-logo-mark span {
    color: var(--amber);
    font-weight: 900;
    font-size: 1.1rem;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .nav-links a {
    padding: 8px 14px;
    font-size: 0.9rem;
    color: var(--text-light);
    border-radius: var(--radius);
    transition: all var(--transition);
    font-weight: 500;
  }
  .nav-links a:hover { color: var(--blue); background: rgba(30,58,95,0.06); }
  .nav-right { display: flex; align-items: center; gap: 12px; }
  .btn-nav-cta {
    padding: 10px 22px;
    background: var(--amber);
    color: #1a1a1a;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 700;
    transition: all var(--transition);
    border: 2px solid var(--amber);
  }
  .btn-nav-cta:hover { background: #E08A00; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(245,158,11,0.4); }
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
  }
  .nav-toggle span {
    display: block;
    width: 24px; height: 2px;
    background: var(--blue);
    border-radius: 2px;
    transition: all var(--transition);
  }

  /* ===== Hero ===== */
  #hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 40%, #1a4a6e 70%, #0f3352 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 68px;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
  }
  /* Grid pattern */
  .hero-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
  }
  /* Glow orbs */
  .hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
  }
  .orb-1 { width: 500px; height: 500px; background: var(--teal); top: -100px; right: -50px; }
  .orb-2 { width: 350px; height: 350px; background: var(--amber); bottom: -80px; left: 20%; opacity: 0.15; }
  .orb-3 { width: 250px; height: 250px; background: #3B82F6; top: 30%; left: -50px; opacity: 0.2; }

  .hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding: 80px 0;
  }
  .hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.35);
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--amber-light);
    margin-bottom: 24px;
  }
  .hero-label::before { content: ''; width: 8px; height: 8px; background: var(--amber); border-radius: 50%; animation: pulse 2s infinite; }
  @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
  .hero-title {
    font-size: clamp(2rem, 4.5vw, 3.6rem);
    font-weight: 900;
    color: white;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
  }
  .hero-title em {
    font-style: normal;
    color: var(--amber);
    position: relative;
  }
  .hero-title em::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0; right: 0;
    height: 3px;
    background: var(--amber);
    opacity: 0.4;
    border-radius: 2px;
  }
  .hero-sub {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 500px;
  }
  .hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
  .hero-stats {
    display: flex;
    gap: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.12);
  }
  .hero-stat-num {
    font-size: 1.8rem;
    font-weight: 900;
    color: white;
    line-height: 1;
    margin-bottom: 4px;
  }
  .hero-stat-num span { color: var(--amber); }
  .hero-stat-label { font-size: 0.82rem; color: rgba(255,255,255,0.55); }

  /* Neural Network Canvas */
  .hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  #neural-canvas {
    width: 100%;
    max-width: 520px;
    height: 420px;
    display: block;
  }

  .scroll-hint {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
    cursor: pointer;
    z-index: 2;
  }
  .scroll-arrow {
    width: 32px; height: 32px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  @keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

  /* ===== Trust Bar ===== */
  #trust {
    background: var(--blue);
    padding: 36px 0;
    overflow: hidden;
  }
  .trust-row {
    display: flex;
    align-items: center;
    gap: 0;
    white-space: nowrap;
  }
  .trust-row + .trust-row { margin-top: 16px; }
  .trust-label {
    flex-shrink: 0;
    color: rgba(255,255,255,0.5);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0 24px 0 0;
    border-right: 1px solid rgba(255,255,255,0.15);
    margin-right: 24px;
    min-width: 90px;
  }
  .trust-items {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .trust-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 40px;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    transition: all var(--transition);
  }
  .trust-chip:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.25); }
  .trust-chip-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--teal-light);
  }
  .trust-chip-dot.amber { background: var(--amber); }

  /* ===== Pain Points ===== */
  #pain { background: var(--bg-white); }
  .pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .pain-card {
    padding: 40px 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
  }
  .pain-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--teal), var(--blue));
    opacity: 0;
    transition: opacity var(--transition);
  }
  .pain-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
  }
  .pain-card:hover::before { opacity: 1; }
  .pain-icon {
    width: 56px; height: 56px;
    background: rgba(30,58,95,0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 24px;
    transition: all var(--transition);
  }
  .pain-card:hover .pain-icon { background: var(--blue); }
  .pain-num {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
  }
  .pain-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--blue);
    margin-bottom: 12px;
    line-height: 1.3;
  }
  .pain-desc { font-size: 0.95rem; color: var(--text-light); line-height: 1.75; }
  .pain-stat {
    margin-top: 20px;
    padding: 12px 16px;
    background: rgba(245,158,11,0.08);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: #92400E;
    font-weight: 600;
    border-left: 3px solid var(--amber);
  }

  /* ===== Solution ===== */
  #solution { background: var(--bg); }
  .solution-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
    margin-top: 16px;
  }
  .solution-step {
    position: relative;
    padding: 32px 24px;
    text-align: center;
  }
  .solution-step:not(:last-child)::after {
    content: '→';
    position: absolute;
    top: 44px;
    right: -14px;
    font-size: 1.4rem;
    color: var(--teal);
    z-index: 1;
    font-weight: 700;
  }
  .step-num {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--blue), var(--blue-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 900;
    color: white;
    margin: 0 auto 20px;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 16px rgba(30,58,95,0.35);
  }
  .step-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    display: block;
  }
  .step-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--blue);
    margin-bottom: 10px;
    line-height: 1.3;
  }
  .step-desc { font-size: 0.875rem; color: var(--text-light); line-height: 1.7; }
  .step-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
    height: 100%;
  }
  .step-card:hover { border-color: var(--teal); box-shadow: 0 8px 32px rgba(13,148,136,0.15); transform: translateY(-4px); }

  /* ===== Services ===== */
  #services { background: var(--bg-white); }
  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
  }
  .service-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
  }
  .service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
  .service-card.featured {
    border-color: var(--teal);
    background: linear-gradient(160deg, #f0fdf9 0%, var(--bg-white) 100%);
    box-shadow: 0 0 0 1px var(--teal), 0 8px 32px rgba(13,148,136,0.12);
  }
  .service-card.featured:hover { box-shadow: 0 0 0 2px var(--teal), var(--shadow-lg); }
  .service-header {
    padding: 32px 32px 24px;
    border-bottom: 1px solid var(--border);
  }
  .service-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 40px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
  }
  .badge-enterprise { background: rgba(30,58,95,0.1); color: var(--blue); }
  .badge-mid { background: rgba(13,148,136,0.12); color: var(--teal); }
  .badge-local { background: rgba(245,158,11,0.15); color: #92400E; }
  .service-name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--blue);
    margin-bottom: 8px;
  }
  .service-tagline { font-size: 0.9rem; color: var(--text-light); }
  .service-body { padding: 24px 32px; flex: 1; }
  .service-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
  .service-feature {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
  }
  .service-feature::before {
    content: '✓';
    width: 20px; height: 20px;
    background: rgba(13,148,136,0.12);
    color: var(--teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
  }
  .service-case {
    padding: 14px 16px;
    background: rgba(30,58,95,0.05);
    border-radius: var(--radius);
    font-size: 0.85rem;
    color: var(--text-light);
    border-left: 3px solid var(--blue);
  }
  .service-case strong { color: var(--blue); }
  .service-footer { padding: 20px 32px 32px; }
  .link-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--teal);
    transition: all var(--transition);
  }
  .link-more:hover { gap: 10px; color: var(--blue); }

  /* ===== Cases ===== */
  #cases { background: var(--blue-dark); }
  #cases .section-title { color: white; }
  #cases .section-sub { color: rgba(255,255,255,0.6); }
  .cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .case-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
    backdrop-filter: blur(8px);
  }
  .case-card:hover { background: rgba(255,255,255,0.09); transform: translateY(-4px); box-shadow: 0 20px 48px rgba(0,0,0,0.3); }
  .case-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
  .case-tag {
    padding: 3px 10px;
    border-radius: 40px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(245,158,11,0.2);
    color: var(--amber-light);
    border: 1px solid rgba(245,158,11,0.3);
  }
  .case-tag.blue {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    border-color: rgba(255,255,255,0.15);
  }
  .case-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
    line-height: 1.4;
  }
  .case-metrics { display: flex; flex-direction: column; gap: 16px; margin-bottom: 24px; }
  .metric-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .metric-label { font-size: 0.8rem; color: rgba(255,255,255,0.5); font-weight: 500; }
  .metric-bar-wrap { display: flex; align-items: center; gap: 12px; }
  .metric-bar-bg {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,0.08);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
  }
  .metric-bar {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--teal), var(--teal-light));
    width: 0%;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .metric-bar.amber { background: linear-gradient(90deg, var(--amber), var(--amber-light)); }
  .metric-before { font-size: 0.8rem; color: rgba(255,255,255,0.4); min-width: 30px; }
  .metric-after { font-size: 0.9rem; font-weight: 700; color: var(--teal-light); min-width: 36px; }
  .metric-after.amber { color: var(--amber-light); }
  .case-strategy {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.55);
    line-height: 1.7;
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
  }

  /* ===== Tech ===== */
  #tech { background: var(--bg); }
  .tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .tech-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
  }
  .tech-card::after {
    content: '';
    position: absolute;
    bottom: 0; right: 0;
    width: 100px; height: 100px;
    background: radial-gradient(circle, rgba(13,148,136,0.08) 0%, transparent 70%);
    pointer-events: none;
  }
  .tech-card:hover { border-color: var(--teal); box-shadow: var(--shadow-md); transform: translateY(-3px); }
  .tech-icon-wrap {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, rgba(30,58,95,0.08), rgba(13,148,136,0.08));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    flex-shrink: 0;
    border: 1px solid rgba(30,58,95,0.08);
  }
  .tech-content {}
  .tech-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--blue);
    margin-bottom: 10px;
  }
  .tech-desc { font-size: 0.9rem; color: var(--text-light); line-height: 1.75; }
  .tech-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
  .tech-tag {
    padding: 3px 10px;
    background: rgba(13,148,136,0.08);
    color: var(--teal);
    border-radius: 40px;
    font-size: 0.78rem;
    font-weight: 600;
  }

  /* ===== Partner ===== */
  #partner { background: var(--bg-white); }
  .partner-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }
  .partner-heading {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 800;
    color: var(--blue);
    margin-bottom: 16px;
    line-height: 1.3;
  }
  .partner-sub { font-size: 1rem; color: var(--text-light); line-height: 1.8; margin-bottom: 32px; }
  .partner-benefits { display: flex; flex-direction: column; gap: 16px; }
  .partner-benefit {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px 20px;
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
  }
  .partner-benefit:hover { border-color: var(--teal); background: rgba(13,148,136,0.03); }
  .benefit-icon {
    width: 40px; height: 40px;
    background: rgba(13,148,136,0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
  }
  .benefit-text h4 { font-size: 0.95rem; font-weight: 700; color: var(--blue); margin-bottom: 4px; }
  .benefit-text p { font-size: 0.875rem; color: var(--text-light); }
  .partner-form-wrap {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
  }
  .form-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--blue);
    margin-bottom: 8px;
  }
  .form-sub { font-size: 0.875rem; color: var(--text-light); margin-bottom: 28px; }
  .form-group { margin-bottom: 16px; }
  .form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
  }
  .form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text);
    background: var(--bg-white);
    font-family: inherit;
    transition: all var(--transition);
    outline: none;
  }
  .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(13,148,136,0.12);
  }
  .form-group textarea { resize: vertical; min-height: 80px; }

  /* ===== Bottom CTA ===== */
  #cta {
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
    padding: 96px 0;
    position: relative;
    overflow: hidden;
  }
  #cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
  }
  .cta-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }
  .cta-heading {
    font-size: clamp(1.6rem, 2.8vw, 2.4rem);
    font-weight: 900;
    color: white;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
  }
  .cta-heading em { font-style: normal; color: var(--amber); }
  .cta-sub { font-size: 1rem; color: rgba(255,255,255,0.65); line-height: 1.8; margin-bottom: 32px; }
  .cta-guarantees { display: flex; flex-direction: column; gap: 12px; }
  .cta-guarantee {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.75);
  }
  .cta-guarantee::before {
    content: '✓';
    width: 22px; height: 22px;
    background: rgba(13,148,136,0.3);
    border: 1px solid rgba(13,148,136,0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--teal-light);
    flex-shrink: 0;
  }
  .cta-form {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(8px);
  }
  .cta-form-title { font-size: 1.2rem; font-weight: 800; color: white; margin-bottom: 24px; }
  .cta-form .form-group input, .cta-form .form-group select {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
    color: white;
  }
  .cta-form .form-group input::placeholder { color: rgba(255,255,255,0.4); }
  .cta-form .form-group label { color: rgba(255,255,255,0.8); }
  .cta-form .form-group select option { background: var(--blue); }
  .cta-form .form-group input:focus, .cta-form .form-group select:focus {
    border-color: var(--amber);
    box-shadow: 0 0 0 3px rgba(245,158,11,0.2);
  }
  .form-note { font-size: 0.8rem; color: rgba(255,255,255,0.45); margin-top: 12px; text-align: center; }

  /* ===== Footer ===== */
  #footer { background: var(--blue-dark); padding: 64px 0 32px; }
  .footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 32px;
  }
  .footer-brand { }
  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
  }
  .footer-logo-mark {
    width: 36px; height: 36px;
    background: var(--amber);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1rem;
    color: var(--blue-dark);
  }
  .footer-brand-name { font-weight: 800; font-size: 0.95rem; color: white; }
  .footer-desc { font-size: 0.875rem; color: rgba(255,255,255,0.45); line-height: 1.75; margin-bottom: 20px; max-width: 260px; }
  .footer-contact { font-size: 0.85rem; color: rgba(255,255,255,0.5); line-height: 1.8; }
  .footer-col-title { font-size: 0.85rem; font-weight: 700; color: rgba(255,255,255,0.7); letter-spacing: 0.05em; margin-bottom: 16px; }
  .footer-links { display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 0.875rem; color: rgba(255,255,255,0.45); transition: color var(--transition); }
  .footer-links a:hover { color: white; }
  .social-links { display: flex; gap: 10px; margin-top: 20px; }
  .social-link {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: rgba(255,255,255,0.5);
    transition: all var(--transition);
  }
  .social-link:hover { background: rgba(255,255,255,0.12); color: white; }
  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
  }
  .footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.3); }
  .footer-legal { display: flex; gap: 24px; }
  .footer-legal a { font-size: 0.8rem; color: rgba(255,255,255,0.3); transition: color var(--transition); }
  .footer-legal a:hover { color: rgba(255,255,255,0.6); }

  /* ===== Modal Toast ===== */
  .toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--blue);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: 0.95rem;
    font-weight: 600;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 360px;
    border: 1px solid rgba(255,255,255,0.1);
  }
  .toast.show { transform: none; }
  .toast-icon { font-size: 1.3rem; }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero-cta { justify-content: center; }
    .hero-stats { justify-content: center; }
    #neural-canvas { max-width: 360px; height: 280px; }
    .solution-steps { grid-template-columns: repeat(2, 1fr); }
    .solution-step:nth-child(2)::after { display: none; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .cta-inner, .partner-inner { grid-template-columns: 1fr; gap: 48px; }
  }
  @media (max-width: 768px) {
    .section { padding: 72px 0; }
    .nav-links { display: none; }
    .nav-links.open {
      display: flex;
      flex-direction: column;
      position: fixed;
      top: 68px; left: 0; right: 0;
      background: white;
      padding: 16px;
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      z-index: 999;
    }
    .nav-links.open a { padding: 12px 16px; border-radius: var(--radius); }
    .nav-toggle { display: flex; }
    .pain-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .solution-steps { grid-template-columns: 1fr; }
    .solution-step::after { display: none !important; }
    .hero-stat { text-align: center; }
    .trust-row { flex-wrap: wrap; gap: 8px; }
    .trust-label { border-right: none; padding-right: 0; }
    .cta-form { padding: 28px; }
    .partner-form-wrap { padding: 28px; }
  }
  @media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .hero-cta { flex-direction: column; }
    .btn { justify-content: center; }
  }