/* Spandig GEO Theme Styles */


  :root {
    --color-primary: #6C5CE7;
    --color-primary-light: #A29BFE;
    --color-primary-dark: #5A4BD1;
    --color-accent: #00D2FF;
    --color-accent-alt: #0ABDE3;
    --color-orange: #FF6B6B;
    --color-success: #00C48C;
    --color-navy: #1A1A2E;
    --color-navy-light: #2D2D44;
    --color-bg: #FAFBFF;
    --color-white: #FFFFFF;
    --color-text: #2D3436;
    --color-text-secondary: #636E72;
    --color-text-light: #B2BEC3;
    --color-border: #E8EAF6;
    --color-card-bg: #FFFFFF;
    --color-section-alt: #F3F0FF;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(108,92,231,0.06);
    --shadow-md: 0 4px 20px rgba(108,92,231,0.1);
    --shadow-lg: 0 8px 40px rgba(108,92,231,0.12);
    --shadow-xl: 0 20px 60px rgba(108,92,231,0.15);
    --max-width: 1200px;
    --nav-height: 64px;
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  /* ─ Navigation ── */
  .nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(250,251,255,0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    height: var(--nav-height);
    display: flex; align-items: center;
  }
  .nav-inner {
    width: 100%; max-width: var(--max-width);
    margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
  }
  .nav-logo {
    display: flex; align-items: center; gap: 10px;
    text-decoration: none; color: var(--color-navy);
    font-weight: 700; font-size: 18px;
  }
  .nav-logo svg { width: 32px; height: 32px; }
  .nav-logo span.brand-en { font-weight: 800; letter-spacing: -0.5px; }
  .nav-links { display: flex; gap: 4px; align-items: center; }
  .nav-links a {
    text-decoration: none; color: var(--color-text-secondary);
    font-size: 14px; font-weight: 500;
    padding: 8px 16px; border-radius: var(--radius-sm);
    transition: all 0.2s;
  }
  .nav-links a:hover, .nav-links a.active {
    color: var(--color-navy); background: var(--color-section-alt);
  }
  .nav-links a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -2px; }
  .nav-link-btn {
    background: none; border: none; cursor: pointer;
    font-family: var(--font-main); font-size: 14px; font-weight: 500;
    color: var(--color-text-secondary);
    padding: 8px 16px; border-radius: var(--radius-sm);
    transition: all 0.2s;
  }
  .nav-link-btn:hover, .nav-link-btn.active {
    color: var(--color-navy); background: var(--color-section-alt);
  }
  .nav-link-btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -2px; }
  .nav-link-btn.nav-cta {
    background: var(--color-navy); color: var(--color-white);
    padding: 8px 20px; border-radius: 20px; font-weight: 600;
  }
  .nav-link-btn.nav-cta:hover { background: var(--color-navy-light); }
  .nav-cta {
    background: var(--color-navy) !important; color: var(--color-white) !important;
    padding: 8px 20px !important; border-radius: 20px !important;
    font-weight: 600 !important;
  }
  .nav-cta:hover { background: var(--color-navy-light) !important; }
  .nav-toggle {
    display: none; background: none; border: none; cursor: pointer;
    width: 36px; height: 36px; align-items: center; justify-content: center;
  }
  .nav-toggle svg { width: 24px; height: 24px; }

  /* ── Page container ── */
  /* page display removed for WordPress */
  

  /* ── Sections ── */
  .section { padding: 80px 24px; }
  .section-alt { background: var(--color-section-alt); }
  .section-dark { background: var(--color-navy); color: var(--color-white); }
    .container { max-width: var(--max-width); margin: 0 auto; }

  /* ── Pricing page wider container ── */
  #page-pricing .container { max-width: 1600px; }

  .section-label {
    font-size: 13px; font-weight: 600; color: var(--color-primary);
    letter-spacing: 2px; text-transform: uppercase;
    margin-bottom: 12px;
  }
  .section-title {
    font-size: clamp(24px, 4vw, 36px); font-weight: 700;
    color: var(--color-navy); line-height: 1.3;
    margin-bottom: 16px;
  }
  .section-dark .section-title { color: var(--color-white); }
  .section-subtitle {
    font-size: 16px; color: var(--color-text-secondary);
    max-width: 640px; line-height: 1.8;
  }
  .section-dark .section-subtitle { color: rgba(255,255,255,0.7); }
  .divider {
    width: 60px; height: 3px; background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px; margin: 20px 0 24px;
  }

  /* ── Hero ── */
  .hero {
    min-height: calc(100vh - var(--nav-height));
    display: flex; align-items: center;
    background: linear-gradient(135deg, #FAFBFF 0%, #F3F0FF 50%, #E8F0FE 100%);
    position: relative; overflow: hidden;
  }
  .hero::after {
    content: ''; position: absolute; right: -80px; top: -80px;
    width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, rgba(108,92,231,0.08) 0%, transparent 70%);
    pointer-events: none;
  }
  .hero-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
  }
  .hero-content .tag {
    font-size: 13px; font-weight: 600; color: var(--color-primary);
    letter-spacing: 3px; text-transform: uppercase; margin-bottom: 20px;
  }
  .hero-content h1 {
    font-size: clamp(32px, 5vw, 52px); font-weight: 800;
    color: var(--color-navy); line-height: 1.2;
    margin-bottom: 8px;
  }
  .hero-content h1 .accent { color: var(--color-primary); }
  .hero-content .tagline {
    font-size: clamp(16px, 2.5vw, 22px); font-weight: 600;
    color: var(--color-navy); margin-bottom: 16px;
  }
  .hero-content .desc {
    font-size: 16px; color: var(--color-text-secondary);
    line-height: 1.8; margin-bottom: 32px; max-width: 520px;
  }
  .hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: 24px;
    font-size: 15px; font-weight: 600; text-decoration: none;
    transition: all 0.25s; cursor: pointer; border: none;
  }
  .btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
  .btn-primary {
    background: var(--color-navy); color: var(--color-white);
  }
  .btn-primary:hover { background: var(--color-navy-light); transform: translateY(-1px); }
  .btn-outline {
    background: transparent; color: var(--color-navy);
    border: 1.5px solid var(--color-navy);
  }
  .btn-outline:hover { background: var(--color-navy); color: var(--color-white); }
  .btn-cyan {
    background: var(--color-primary); color: var(--color-white);
  }
  .btn-cyan:hover { background: var(--color-accent-alt); }

  .hero-visual {
    position: relative; display: flex; justify-content: center; align-items: center;
  }
  .hero-visual .ring {
    position: absolute; border-radius: 50%;
    border: 1.5px solid rgba(108,92,231,0.15);
  }
  .hero-visual .ring-1 { width: 380px; height: 380px; }
  .hero-visual .ring-2 { width: 280px; height: 280px; background: rgba(108,92,231,0.04); }
  .hero-visual .ring-3 { width: 180px; height: 180px; background: rgba(108,92,231,0.08); }
  .hero-logo-wrap {
    position: relative; z-index: 2;
    width: 200px; height: 200px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
  }
  .hero-logo-wrap .logo-text {
    font-size: 48px; font-weight: 800; color: var(--color-navy);
    letter-spacing: -1px;
  }
  .hero-logo-wrap .logo-sub {
    font-size: 11px; letter-spacing: 4px; color: var(--color-text-light);
    margin-top: 4px;
  }

  /* ── Stats strip ── */
  .stats-strip {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
  }
  .stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .stat-item {
    padding: 32px 24px; text-align: center;
    border-right: 1px solid var(--color-border);
  }
  .stat-item:last-child { border-right: none; }
  .stat-number {
    font-size: 36px; font-weight: 800; color: var(--color-navy);
    line-height: 1; margin-bottom: 8px;
  }
  .stat-number .unit { font-size: 18px; font-weight: 600; }
  .stat-number.cyan { color: var(--color-primary); }
  .stat-number.orange { color: var(--color-orange); }
  .stat-desc {
    font-size: 13px; color: var(--color-text-secondary); line-height: 1.5;
  }

  /* ── Cards grid ── */
  .cards-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  .card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: all 0.25s;
  }
  .card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
  .card-icon {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    background: var(--color-section-alt); color: var(--color-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700; margin-bottom: 16px;
  }
  .card-title { font-size: 18px; font-weight: 700; color: var(--color-navy); margin-bottom: 10px; }
  .card-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

  /* ── Comparison ── */
  .compare-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  }
  .compare-card {
    border-radius: var(--radius-md); padding: 36px;
    border: 1px solid var(--color-border);
  }
  .compare-card.positive { background: var(--color-white); }
  .compare-card.negative { background: #FFF5F5; border-color: #FFD4D4; }
  .compare-header {
    font-size: 18px; font-weight: 700; padding: 8px 16px;
    border-radius: var(--radius-sm); margin-bottom: 24px;
    display: inline-block;
  }
  .compare-card.positive .compare-header { background: var(--color-primary); color: var(--color-white); }
  .compare-card.negative .compare-header { background: var(--color-orange); color: var(--color-white); }
  .compare-list { list-style: none; }
  .compare-list li {
    padding: 12px 0; border-bottom: 1px solid var(--color-border);
    font-size: 14px; line-height: 1.6;
  }
  .compare-list li:last-child { border-bottom: none; }
  .compare-list li strong { display: block; font-weight: 700; margin-bottom: 2px; }
  .compare-list li span { color: var(--color-text-secondary); font-size: 13px; }

  /* ── Steps ── */
  .steps-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  }
  .step-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    position: relative;
  }
  .step-card:last-child {
    background: var(--color-navy); color: var(--color-white);
    border-top-color: var(--color-navy);
  }
  .step-card:last-child .step-label,
  .step-card:last-child .step-title,
  .step-card:last-child .step-desc { color: var(--color-white); }
  .step-card:last-child .step-label { opacity: 0.7; }
  .step-label {
    font-size: 11px; font-weight: 600; color: var(--color-primary);
    letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 8px;
  }
  .step-title { font-size: 18px; font-weight: 700; color: var(--color-navy); margin-bottom: 10px; }
  .step-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

  /* ── Modules ── */
  .modules-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  }
  .module-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 32px;
  }
  .module-card:last-child { border-left-color: var(--color-navy); background: var(--color-navy); color: var(--color-white); }
  .module-card:last-child .module-label { color: var(--color-primary); }
  .module-card:last-child .module-title,
  .module-card:last-child .module-item { color: var(--color-white); }
  .module-card:last-child .module-item-sub { color: rgba(255,255,255,0.7); }
  .module-label {
    font-size: 12px; font-weight: 600; color: var(--color-primary);
    letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 8px;
  }
  .module-title { font-size: 20px; font-weight: 700; color: var(--color-navy); margin-bottom: 16px; }
  .module-item { font-size: 14px; color: var(--color-text); line-height: 1.7; margin-bottom: 10px; }
  .module-item-sub { font-size: 13px; color: var(--color-text-secondary); }

  /* ─ Pricing table ── */
  .pricing-table-wrap { overflow-x: auto; }
  .pricing-table {
    width: 100%; border-collapse: collapse; min-width: 700px;
    background: var(--color-white); border-radius: var(--radius-md);
    overflow: hidden; box-shadow: var(--shadow-sm);
  }
  .pricing-table th {
    background: var(--color-navy); color: var(--color-white);
    padding: 16px 20px; font-size: 14px; font-weight: 600;
    text-align: center;
  }
  .pricing-table th:first-child { text-align: left; }
  .pricing-table td {
    padding: 16px 20px; font-size: 14px;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
  }
  .pricing-table td:first-child { text-align: left; font-weight: 600; color: var(--color-navy); }
  .pricing-table tr:nth-child(even) td { background: var(--color-bg); }
  .pricing-table tr:last-child td { background: var(--color-navy); color: var(--color-white); border-bottom: none; }
  .pricing-table tr:last-child td:first-child { color: var(--color-primary); font-weight: 700; }

  /* ── Pricing detail cards ── */
  .pricing-detail-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  }
  .pricing-detail {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px;
  }
  .pricing-detail.featured {
    background: var(--color-navy); color: var(--color-white);
    border-color: var(--color-navy);
  }
  .pricing-detail.featured .pd-title,
  .pricing-detail.featured .pd-value-title,
  .pricing-detail.featured .pd-item { color: var(--color-white); }
  .pricing-detail.featured .pd-subtitle,
  .pricing-detail.featured .pd-item-sub { color: rgba(255,255,255,0.7); }
  .pricing-detail.featured .pd-value { color: var(--color-primary); }
  .pd-title { font-size: 22px; font-weight: 700; color: var(--color-navy); margin-bottom: 4px; }
  .pd-subtitle { font-size: 14px; color: var(--color-text-secondary); margin-bottom: 24px; }
  .pd-section-label { font-size: 13px; font-weight: 600; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
  .pd-item { font-size: 15px; color: var(--color-text); padding: 8px 0; border-bottom: 1px solid var(--color-border); }
  .pd-item:last-of-type { border-bottom: none; }
  .pd-item-sub { font-size: 13px; color: var(--color-text-secondary); margin-top: 2px; }
  .pd-value-title { font-size: 14px; font-weight: 700; color: var(--color-primary); margin-top: 20px; margin-bottom: 4px; }
  .pd-value { font-size: 14px; color: var(--color-text-secondary); }

  /* ── Monitor features ── */
  .monitor-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  }
  .monitor-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    text-align: center;
    transition: all 0.25s;
  }
  .monitor-card:hover { box-shadow: var(--shadow-md); }
  .monitor-icon {
    width: 64px; height: 64px; border-radius: 50%;
    background: var(--color-section-alt);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
  }
  .monitor-icon svg { width: 28px; height: 28px; }
  .monitor-title { font-size: 17px; font-weight: 700; color: var(--color-navy); margin-bottom: 10px; }
  .monitor-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

  /* ── Why choose ── */
  .why-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  }
  .why-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
  }
  .why-card:last-child { background: var(--color-navy); color: var(--color-white); border-color: var(--color-navy); }
  .why-card:last-child .why-num { color: var(--color-primary); }
  .why-card:last-child .why-title { color: var(--color-white); }
  .why-card:last-child .why-desc { color: rgba(255,255,255,0.7); }
  .why-num { font-size: 40px; font-weight: 800; color: var(--color-primary); line-height: 1; margin-bottom: 12px; }
  .why-title { font-size: 18px; font-weight: 700; color: var(--color-navy); margin-bottom: 10px; }
  .why-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

  /* ── About: Vision / Mission ── */
  .vm-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  }
  .vm-card {
    border-radius: var(--radius-md); padding: 36px;
  }
  .vm-card.light {
    background: var(--color-white); border: 1px solid var(--color-border);
  }
  .vm-card.dark {
    background: var(--color-navy); color: var(--color-white);
  }
  .vm-label {
    font-size: 12px; font-weight: 600; letter-spacing: 2px;
    text-transform: uppercase; margin-bottom: 12px;
  }
  .vm-card.light .vm-label { color: var(--color-primary); }
  .vm-card.dark .vm-label { color: var(--color-primary); }
  .vm-title { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
  .vm-card.light .vm-title { color: var(--color-navy); }
  .vm-desc { font-size: 15px; line-height: 1.8; }
  .vm-card.light .vm-desc { color: var(--color-text-secondary); }
  .vm-card.dark .vm-desc { color: rgba(255,255,255,0.8); }

  /* ── Values ── */
  .values-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  }
  .value-card { text-align: left; }
  .value-num {
    font-size: 48px; font-weight: 800; color: var(--color-primary);
    line-height: 1; margin-bottom: 12px;
  }
  .value-title { font-size: 18px; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
  .value-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

  /* ── Contact ── */
  .contact-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
    align-items: start;
  }
  .contact-info-card {
    background: var(--color-navy); color: var(--color-white);
    border-radius: var(--radius-md); padding: 40px;
  }
  .contact-info-card h3 { font-size: 22px; margin-bottom: 24px; }
  .contact-row {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .contact-row:last-child { border-bottom: none; }
  .contact-icon {
    width: 40px; height: 40px; border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .contact-icon svg { width: 18px; height: 18px; }
  .contact-row-text { font-size: 14px; }
  .contact-row-text strong { display: block; margin-bottom: 4px; font-size: 15px; }
  .contact-row-text span { color: rgba(255,255,255,0.7); }

  .contact-form {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 40px;
  }
  .contact-form h3 { font-size: 22px; color: var(--color-navy); margin-bottom: 24px; }
  .form-group { margin-bottom: 20px; }
  .form-group label {
    display: block; font-size: 14px; font-weight: 600;
    color: var(--color-text); margin-bottom: 6px;
  }
  .form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 12px 16px;
    border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    font-size: 14px; font-family: var(--font-main);
    background: var(--color-bg);
    transition: border-color 0.2s;
    outline: none;
  }
  .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    border-color: var(--color-primary);
  }
  .form-group textarea { min-height: 120px; resize: vertical; }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

  /* ─ GEO explainer ── */
  .geo-def {
    background: var(--color-navy); color: var(--color-white);
    border-radius: var(--radius-md); padding: 36px;
    font-size: 16px; line-height: 1.8;
    margin-bottom: 40px;
  }

  /* ── GEO 应用场景 ── */
  .scenario-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
    margin-top: 40px;
  }
  .scenario-card {
    background: var(--color-white); border-radius: var(--radius-lg);
    border: 1px solid var(--color-border); padding: 40px 36px;
    transition: all 0.3s; position: relative; overflow: hidden;
  }
  .scenario-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
  .scenario-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-navy));
  }
  .scenario-icon {
    width: 56px; height: 56px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; margin-bottom: 20px;
  }
  .scenario-icon.corporate { background: var(--color-section-alt); }
  .scenario-icon.product { background: #FFF3E8; }
  .scenario-card h3 {
    font-size: 20px; font-weight: 700; color: var(--color-navy);
    margin-bottom: 12px;
  }
  .scenario-card .scenario-desc {
    font-size: 14px; color: var(--color-text-secondary); line-height: 1.7;
    margin-bottom: 20px;
  }
  .scenario-card ul { list-style: none; padding: 0; }
  .scenario-card ul li {
    font-size: 13.5px; color: var(--color-text); padding: 6px 0;
    padding-left: 22px; position: relative; border-bottom: 1px solid var(--color-border);
  }
  .scenario-card ul li:last-child { border-bottom: none; }
  .scenario-card ul li::before {
    content: '✓'; position: absolute; left: 0; top: 6px;
    color: var(--color-primary); font-weight: 700; font-size: 14px;
  }

  /* ── FAQ ── */
  .faq-list { max-width: 860px; margin: 40px auto 0; }
  .faq-item {
    background: var(--color-white); border-radius: var(--radius-md);
    border: 1px solid var(--color-border); margin-bottom: 12px;
    overflow: hidden; transition: all 0.2s;
  }
  .faq-item:hover { border-color: var(--color-primary); }
  .faq-q {
    padding: 18px 24px; font-size: 15px; font-weight: 600;
    color: var(--color-navy); cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    background: none; border: none; width: 100%; text-align: left;
    font-family: var(--font-main);
  }
  .faq-q .faq-icon {
    font-size: 20px; color: var(--color-primary); transition: transform 0.3s;
    flex-shrink: 0; margin-left: 12px;
  }
  .faq-item.open .faq-icon { transform: rotate(45deg); }
  .faq-a {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
  }
  .faq-item.open .faq-a {
    max-height: 300px; padding: 0 24px 20px;
  }
  .faq-a p {
    font-size: 14px; color: var(--color-text-secondary); line-height: 1.8;
  }

  /* ── Footer ── */
  .footer {
    background: var(--color-navy); color: var(--color-white);
    padding: 48px 24px 24px;
  }
  .footer-grid {
    max-width: var(--max-width); margin: 0 auto;
    display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px;
    margin-bottom: 32px;
  }
  .footer-brand .footer-logo {
    font-size: 24px; font-weight: 800; margin-bottom: 12px;
  }
  .footer-brand p { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.7; max-width: 320px; }
  .footer-col h4 {
    font-size: 14px; font-weight: 600; margin-bottom: 16px;
    color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 1px;
  }
  .footer-col a {
    display: block; font-size: 14px; color: rgba(255,255,255,0.7);
    text-decoration: none; padding: 4px 0; transition: color 0.2s;
  }
  .footer-col a:hover { color: var(--color-white); }
  .footer-col a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
  .footer-link-btn {
    display: block; width: 100%; text-align: left;
    background: none; border: none; cursor: pointer;
    font-family: var(--font-main); font-size: 14px;
    color: rgba(255,255,255,0.7); padding: 4px 0;
    transition: color 0.2s;
  }
  .footer-link-btn:hover { color: var(--color-white); }
  .footer-link-btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
  .footer-bottom {
    max-width: var(--max-width); margin: 0 auto;
    padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1);
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; color: rgba(255,255,255,0.4);
  }

  /* ── Trend chart (SVG) ── */
  .chart-wrap {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
  }
  .chart-title { font-size: 16px; font-weight: 700; color: var(--color-navy); margin-bottom: 20px; }

  /* ── Core insight box ── */
  .insight-box {
    background: var(--color-section-alt);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    margin-top: 32px;
  }
  .insight-box h4 { font-size: 16px; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
  .insight-box p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }
  .source-note { font-size: 12px; color: var(--color-text-light); margin-top: 16px; }

  /* ── Custom bar chart ── */
  .bar-chart {
    display: flex; align-items: flex-end; gap: 16px;
    height: 200px; padding: 0 8px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 8px;
  }
  .bar-group { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; }
  .bar {
    width: 100%; max-width: 48px; border-radius: 4px 4px 0 0;
    background: var(--color-primary); transition: height 0.6s;
  }
  .bar-label { font-size: 11px; color: var(--color-text-light); }
  .bar-value { font-size: 11px; color: var(--color-text-secondary); font-weight: 600; }


  /* ── Problem comparison section ── */
  .problem-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
    margin-top: 32px;
  }
  .problem-card {
    border-radius: var(--radius-md); padding: 32px;
    border: 1px solid var(--color-border);
    position: relative; overflow: hidden;
  }
  .problem-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  }
  .problem-card.traditional { background: #FFF5F5; border-color: #FFD4D4; }
  .problem-card.traditional::before { background: var(--color-orange); }
  .problem-card.ai-search { background: var(--color-section-alt); border-color: #D4D0FF; }
  .problem-card.ai-search::before { background: var(--color-primary); }
  .problem-card-icon { font-size: 32px; margin-bottom: 16px; }
  .problem-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; }
  .problem-card.traditional h3 { color: var(--color-orange); }
  .problem-card.ai-search h3 { color: var(--color-accent-alt); }
  .problem-flow {
    display: flex; flex-direction: column; gap: 12px;
  }
  .problem-flow-item {
    display: flex; align-items: center; gap: 12px;
    font-size: 14px; line-height: 1.6;
  }
  .problem-flow-item .arrow {
    color: var(--color-text-light); font-weight: 700; flex-shrink: 0;
  }
  .problem-card.traditional .flow-step {
    background: var(--color-white); border-radius: var(--radius-sm);
    padding: 10px 14px; font-size: 13.5px; color: var(--color-text);
    border-left: 3px solid var(--color-orange);
  }
  .problem-card.ai-search .flow-step {
    background: var(--color-white); border-radius: var(--radius-sm);
    padding: 10px 14px; font-size: 13.5px; color: var(--color-text);
    border-left: 3px solid var(--color-primary);
  }
  .problem-highlight {
    margin-top: 16px; padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px; font-weight: 600;
  }
  .problem-card.traditional .problem-highlight { background: rgba(232,131,58,0.1); color: var(--color-orange); }
  .problem-card.ai-search .problem-highlight { background: rgba(108,92,231,0.15); color: var(--color-accent-alt); }

  /* ── Solution 3-step framework ── */
  .solution-steps {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    margin-top: 32px;
  }
  .solution-step {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    position: relative;
    transition: all 0.25s;
  }
  .solution-step:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
  .solution-step-num {
    font-size: 11px; font-weight: 700; color: var(--color-primary);
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px;
  }
  .solution-step h3 {
    font-size: 20px; font-weight: 700; color: var(--color-navy);
    margin-bottom: 12px;
  }
  .solution-step p {
    font-size: 14px; color: var(--color-text-secondary); line-height: 1.8;
  }
  .solution-step-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: var(--color-section-alt);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; margin-bottom: 16px;
  }
  .solution-arrow {
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; color: var(--color-primary); font-weight: 700;
    position: absolute; right: -24px; top: 50%; transform: translateY(-50%);
    z-index: 2;
  }

  /* ── Industry grid ── */
  .industry-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
    margin-top: 32px;
  }
  .industry-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    transition: all 0.25s;
  }
  .industry-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
  .industry-card .industry-icon {
    font-size: 36px; margin-bottom: 12px;
  }
  .industry-card h3 {
    font-size: 16px; font-weight: 700; color: var(--color-navy);
    margin-bottom: 8px;
  }
  .industry-card p {
    font-size: 13px; color: var(--color-text-secondary); line-height: 1.6;
  }

  /* ── Contact: Cooperation Flow ── */
  .coop-flow-grid {
    display: flex; align-items: center; justify-content: center;
    gap: 0; flex-wrap: wrap;
  }
  .coop-flow-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    flex: 0 0 220px;
    position: relative;
    transition: all 0.25s;
  }
  .coop-flow-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
  .coop-flow-step {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    background: var(--color-primary); color: var(--color-white);
    font-size: 12px; font-weight: 700; padding: 4px 14px;
    border-radius: 12px; letter-spacing: 1px;
  }
  .coop-flow-icon { font-size: 36px; margin-bottom: 12px; margin-top: 8px; }
  .coop-flow-title { font-size: 16px; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
  .coop-flow-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.7; }
  .coop-flow-connector { padding: 0 8px; flex-shrink: 0; }

  /* ── Contact: FAQ ── */
  .contact-faq-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  }
  .contact-faq-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    transition: all 0.25s;
  }
  .contact-faq-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
  .contact-faq-icon { font-size: 28px; margin-bottom: 12px; }
  .contact-faq-title { font-size: 15px; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
  .contact-faq-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.7; }

  /* ── Contact: Service Coverage ── */
  .service-coverage-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 48px;
  }

  /* ── Monitor: Table ── */
  .monitor-table {
    width: 100%; border-collapse: collapse;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }
  .monitor-table th {
    background: var(--color-navy); color: var(--color-white);
    padding: 14px 16px; font-size: 13px; font-weight: 600;
    text-align: center;
  }
  .monitor-table td {
    padding: 12px 16px; font-size: 13px; text-align: center;
    border-bottom: 1px solid var(--color-border);
  }
  .monitor-table tbody tr:last-child td { border-bottom: none; }
  .monitor-table tbody tr:hover { background: var(--color-section-alt); }
  .monitor-badge {
    display: inline-block; padding: 3px 10px; border-radius: 12px;
    font-size: 11px; font-weight: 600;
  }
  .monitor-badge-success { background: rgba(0,196,140,0.12); color: var(--color-success); }
  .monitor-badge-good { background: rgba(10,189,227,0.12); color: #0ABDE3; }

  /* ── Monitor: Consistency Report ── */
  .consistency-report {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    display: flex; flex-direction: column; gap: 20px;
  }
  .consistency-item {}
  .consistency-label {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 8px; font-size: 14px; font-weight: 600; color: var(--color-navy);
  }
  .consistency-score { color: var(--color-primary); font-weight: 700; }
  .consistency-bar-bg {
    width: 100%; height: 10px; background: var(--color-section-alt);
    border-radius: 5px; overflow: hidden;
  }
  .consistency-bar {
    height: 100%; border-radius: 5px;
    transition: width 0.6s ease;
  }

  /* ── Monitor: Heatmap ── */
  .heatmap-container {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    overflow-x: auto;
  }
  .heatmap-header, .heatmap-row {
    display: grid;
    grid-template-columns: 120px repeat(6, 1fr);
    gap: 4px;
    align-items: center;
  }
  .heatmap-header { margin-bottom: 4px; }
  .heatmap-label-col {
    font-size: 12px; font-weight: 600; color: var(--color-navy);
    padding: 10px 8px;
  }
  .heatmap-cell-header {
    font-size: 11px; font-weight: 600; color: var(--color-text-secondary);
    text-align: center; padding: 8px 4px;
  }
  .heatmap-cell {
    text-align: center; padding: 10px 4px; border-radius: 6px;
    font-size: 12px; font-weight: 600;
  }
  .heatmap-high { background: rgba(108,92,231,0.85); color: white; }
  .heatmap-mid { background: rgba(108,92,231,0.45); color: white; }
  .heatmap-low { background: rgba(108,92,231,0.15); color: var(--color-navy); }

  /* ── Monitor: Report Summary ── */
  .report-summary-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  }
  .report-summary-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    transition: all 0.25s;
  }
  .report-summary-card:hover { box-shadow: var(--shadow-md); }
  .report-summary-icon {
    width: 48px; height: 48px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 12px; font-size: 22px;
  }
  .report-summary-label { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 8px; }
  .report-summary-value { font-size: 36px; font-weight: 800; line-height: 1.1; }
  .report-summary-change {
    margin-top: 8px; font-size: 12px; font-weight: 600;
  }
  .report-summary-change-up { color: var(--color-success); }

  /* ── Monitor: Growth Timeline ── */
  .growth-timeline {
    display: flex; flex-direction: column; align-items: center; gap: 0;
  }
  .growth-item {
    display: flex; gap: 24px; align-items: flex-start;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    width: 100%; max-width: 700px;
    transition: all 0.25s;
  }
  .growth-item:hover { box-shadow: var(--shadow-md); }
  .growth-marker {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 22px; font-weight: 800;
    flex-shrink: 0;
  }
  .growth-content { flex: 1; }
  .growth-title { font-size: 17px; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
  .growth-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }
  .growth-connector-v {
    width: 2px; height: 24px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  }

  /* ── Monitor: Tech Architecture ── */
  .tech-arch-flow {
    display: flex; align-items: center; justify-content: center;
    gap: 0; flex-wrap: wrap;
  }
  .tech-arch-step {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 20px;
    text-align: center;
    flex: 0 0 210px;
    transition: all 0.25s;
  }
  .tech-arch-step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
  .tech-arch-icon {
    width: 64px; height: 64px; border-radius: 50%;
    background: var(--color-section-alt);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 14px;
  }
  .tech-arch-title { font-size: 16px; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
  .tech-arch-desc { font-size: 12px; color: var(--color-text-secondary); line-height: 1.7; }
  .tech-arch-arrow { padding: 0 8px; flex-shrink: 0; }

  /* ── Responsive ─ */

  @media (max-width: 1200px) {
    .pricing-cards { grid-template-columns: repeat(3, 1fr); }
  }
  @media (max-width: 900px) {

    .pricing-cards { grid-template-columns: repeat(2, 1fr); }
    .schema-section-grid { grid-template-columns: 1fr; }

    .industry-scenario-strip { grid-template-columns: repeat(2, 1fr); }
    .solution-flow-nodes { flex-wrap: wrap; gap: 16px; }
    .flow-connector { width: 60px; }

    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; }
    .hero-visual .ring-1 { width: 260px; height: 260px; }
    .hero-visual .ring-2 { width: 200px; height: 200px; }
    .hero-visual .ring-3 { width: 140px; height: 140px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2) { border-right: none; }
    .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid var(--color-border); }
    .compare-grid, .vm-grid, .modules-grid, .pricing-detail-grid, .contact-grid, .scenario-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid, .monitor-grid, .values-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .problem-grid, .solution-steps { grid-template-columns: 1fr; }
    .solution-arrow { display: none; }
    .industry-grid { grid-template-columns: repeat(2, 1fr); }

    .nav-links { display: none; }
    .nav-links.open {
      display: flex; flex-direction: column; position: absolute;
      top: var(--nav-height); left: 0; right: 0;
      background: var(--color-white); padding: 16px;
      border-bottom: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
    }
    .nav-toggle { display: flex; }
    .form-row { grid-template-columns: 1fr; }
  }
  @media (max-width: 600px) {

    .pricing-cards { grid-template-columns: 1fr; }
    .pricing-card { max-width: 400px; margin: 0 auto; }
    .section { padding: 48px 16px; }
    .steps-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
    .industry-grid { grid-template-columns: 1fr; }
    .industry-scenario-strip { grid-template-columns: 1fr; }
    .solution-flow-nodes { flex-direction: column; }
    .flow-connector { width: 40px; height: 30px; transform: rotate(90deg); }

    .stat-item { border-right: none; border-bottom: 1px solid var(--color-border); }
    .stat-item:last-child { border-bottom: none; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
  }
  /* ── Print ── */
  @media print {
    .nav { position: static; }
    
    .hero { min-height: auto; }
    .btn { display: none; }
  }

  /* ── Scroll animation ── */
  .fade-in {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s;
  }
  .fade-in.visible { opacity: 1; transform: translateY(0); }

  /* ── New Pricing Cards ── */
  .pricing-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 32px;
  }
  .pricing-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 16px 10px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
  }
  .pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(108,92,231,0.12);
    border-color: var(--color-primary);
  }
  .pricing-card.featured {
    border: 2px solid var(--color-primary);
    box-shadow: 0 8px 30px rgba(108,92,231,0.15);
  }
  .pricing-card.premium {
    background: var(--color-navy);
    border-color: var(--color-navy-light);
  }
  .pricing-card.premium .pc-name,
  .pricing-card.premium .pc-module-title,
  .pricing-card.premium .pc-feature,
  .pricing-card.premium .pc-delivery-label {
    color: var(--color-white);
  }
  .pricing-card.premium .pc-subtitle,
  .pricing-card.premium .pc-feature-sub,
  .pricing-card.premium .pc-delivery-val {
    color: rgba(255,255,255,0.7);
  }
  .pricing-badge {
    position: absolute;
    top: -10px;
    right: 12px;
    background: var(--color-orange);
    color: var(--color-white);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
  }
  .pc-header { margin-bottom: 12px; }
  .pc-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 2px;
    white-space: nowrap;
  }
  .pc-subtitle {
    font-size: 11px;
    color: var(--color-text-light);
    line-height: 1.4;
  }
  .pc-price {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-navy);
    margin: 8px 0 2px;
  }
  .pc-price .currency { font-size: 14px; font-weight: 600; }
  .pc-price .period { font-size: 12px; color: var(--color-text-light); font-weight: 400; }
  .pricing-card.premium .pc-price { color: var(--color-primary); }
  .pc-modules { flex: 1; }
  .pc-module { margin-bottom: 10px; }
  .pc-module-title {
    font-size: 10px;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 5px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--color-border);
  }
  .pricing-card.premium .pc-module-title { border-color: rgba(255,255,255,0.15); }
  .pc-feature {
    font-size: 10px;
    color: var(--color-text);
    line-height: 1.5;
    padding: 2px 0;
    display: flex;
    align-items: baseline;
    gap: 4px;
  }
  .pc-feature-sub {
    font-size: 9px;
    color: var(--color-text-light);
  }
  .pc-feature .check { color: var(--color-primary); font-weight: 700; }
  .pc-feature .cross { color: var(--color-text-light); }
  .pc-delivery {
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid var(--color-border);
  }
  .pricing-card.premium .pc-delivery { border-color: rgba(255,255,255,0.15); }
  .pc-delivery-label {
    font-size: 11px;
    color: var(--color-text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
  }
  .pc-delivery-val {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-navy);
  }

  /* ── Schema Section ── */
  .schema-section-grid {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 40px;
    margin-top: 40px;
    align-items: start;
  }
  .schema-service-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all 0.3s ease;
  }
  .schema-service-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
  }
  .schema-service-icon {
    font-size: 24px;
    margin-bottom: 12px;
  }
  .schema-service-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 8px;
  }
  .schema-service-desc {
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.7;
  }

  /* ── Tech Animations ── */
  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  @keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
  }
  @keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
  }
  @keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--color-primary); }
  }
  @keyframes codeRain {
    0% { transform: translateY(-100%); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(100vh); opacity: 0; }
  }
  @keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 5px rgba(108,92,231,0.2); }
    50% { box-shadow: 0 0 20px rgba(108,92,231,0.4); }
  }
  @keyframes scanline {
    0% { top: -2px; }
    100% { top: 100%; }
  }
  @keyframes gridPulse {
    0%, 100% { opacity: 0.03; }
    50% { opacity: 0.08; }
  }
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
  @keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
  }

  /* Scroll reveal animation classes */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .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; }
  .reveal-delay-5 { transition-delay: 0.5s; }

  /* Terminal/code block styling for tech feel */
  .terminal-block {
    background: #0D1117;
    border-radius: 12px;
    padding: 20px 24px;
    font-family: "SF Mono", "Fira Code", "JetBrains Mono", monospace;
    font-size: 13px;
    color: #C9D1D9;
    position: relative;
    overflow: hidden;
    border: 1px solid #30363D;
  }
  .terminal-block::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 32px;
    background: #161B22;
    border-bottom: 1px solid #30363D;
  }
  .terminal-block .terminal-dots {
    position: absolute;
    top: 10px;
    left: 14px;
    display: flex;
    gap: 6px;
  }
  .terminal-block .terminal-dots span {
    width: 10px; height: 10px;
    border-radius: 50%;
  }
  .terminal-block .terminal-dots span:nth-child(1) { background: #FF5F57; }
  .terminal-block .terminal-dots span:nth-child(2) { background: #FFBD2E; }
  .terminal-block .terminal-dots span:nth-child(3) { background: #28CA42; }
  .terminal-block .terminal-content {
    margin-top: 24px;
    line-height: 1.8;
  }
  .terminal-block .cmd { color: #7EE787; }
  .terminal-block .flag { color: #FF7B72; }
  .terminal-block .string { color: #A5D6FF; }
  .terminal-block .comment { color: #8B949E; }
  .terminal-block .keyword { color: #FF7B72; }
  .terminal-block .output { color: #79C0FF; }

  /* Animated background grid for tech sections */
  .tech-grid-bg {
    position: relative;
    overflow: hidden;
  }
  .tech-grid-bg::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
      linear-gradient(rgba(108,92,231,0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(108,92,231,0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridPulse 4s ease-in-out infinite;
    pointer-events: none;
  }

  /* Floating animation for cards */
  .float-anim {
    animation: float 6s ease-in-out infinite;
  }
  .float-anim-delay {
    animation: float 6s ease-in-out 2s infinite;
  }

  /* Shimmer effect for highlighted elements */
  .shimmer {
    background: linear-gradient(90deg, transparent 30%, rgba(108,92,231,0.08) 50%, transparent 70%);
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
  }

  /* Typing cursor effect */
  .typing-cursor::after {
    content: '|';
    color: var(--color-primary);
    animation: blink-caret 1s step-end infinite;
    font-weight: 400;
  }

  /* Scanline overlay for hero */
  .hero::before {
    content: '';
    position: absolute;
    left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(108,92,231,0.15), transparent);
    animation: scanline 8s linear infinite;
    pointer-events: none;
    z-index: 1;
  }


  /* New v4 styles */
  .ai-search-card { background: rgba(255,255,255,0.92); backdrop-filter: blur(20px); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-xl); max-width: 420px; width: 100%; }
  .ai-search-header { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--color-border); }
  .ai-search-dot { width: 8px; height: 8px; border-radius: 50%; }
  .ai-search-label { font-size: 11px; font-weight: 600; color: var(--color-text-light); letter-spacing: 1px; text-transform: uppercase; margin-left: auto; }
  .ai-search-q { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 12px; padding-left: 12px; border-left: 3px solid var(--color-primary-light); }
  .ai-search-a { font-size: 13px; color: var(--color-text-secondary); line-height: 1.8; margin-bottom: 14px; }
  .ai-search-cite { display: flex; align-items: center; gap: 8px; background: var(--color-section-alt); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 13px; font-weight: 600; color: var(--color-primary); }
  .cite-check { width: 20px; height: 20px; border-radius: 50%; background: var(--color-success); display: flex; align-items: center; justify-content: center; color: white; font-size: 11px; font-weight: 700; flex-shrink: 0; }
  .ai-icons-strip { display: flex; justify-content: center; align-items: center; gap: 24px; margin-top: 32px; flex-wrap: wrap; padding: 24px 0; }
  .ai-icon-item { display: flex; flex-direction: column; align-items: center; gap: 6px; opacity: 1; transition: opacity 0.3s; }
  .ai-icon-item:hover { opacity: 1; }
  .ai-icon-item svg { width: 36px; height: 36px; }
  .ai-icon-item span { font-size: 11px; color: var(--color-text-light); font-weight: 500; }
  .cta-banner { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); border-radius: var(--radius-xl); padding: 48px; text-align: center; position: relative; overflow: hidden; margin: 40px 0; }
  .cta-banner h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; color: var(--color-white); margin-bottom: 12px; position: relative; z-index: 1; }
  .cta-banner p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 24px; position: relative; z-index: 1; }
  .cta-banner .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }
  .btn-white { background: var(--color-white); color: var(--color-primary); }
  .btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
  .why-progress { margin-top: 16px; }
  .why-progress-bar { height: 6px; border-radius: 3px; background: var(--color-section-alt); overflow: hidden; margin-bottom: 4px; }
  .why-progress-fill { height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); }
  .why-progress-label { font-size: 11px; color: var(--color-text-light); font-weight: 600; }
  .why-card:last-child .why-progress-bar { background: rgba(255,255,255,0.15); }
  .why-card:last-child .why-progress-label { color: rgba(255,255,255,0.6); }
  .terminal-scroll { animation: terminalScroll 10s linear infinite; }
  @keyframes terminalScroll { 0% { transform: translateY(0); } 50% { transform: translateY(-20px); } 100% { transform: translateY(0); } }
  .pricing-card.premium { background: linear-gradient(135deg, #F8F7FF, #F0FAFF); }
  .pricing-card.premium .pc-price { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
  .selection-guide { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 32px; margin-bottom: 32px; }
  .guide-title { font-size: 20px; font-weight: 700; color: var(--color-primary-dark); margin-bottom: 20px; text-align: center; }
  .guide-questions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .guide-q { text-align: center; }
  .guide-q-label { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 12px; }
  .guide-q-options { display: flex; flex-direction: column; gap: 8px; }
  .guide-option { padding: 10px 16px; border-radius: var(--radius-sm); background: var(--color-bg); border: 1px solid var(--color-border); font-size: 13px; color: var(--color-text-secondary); transition: all 0.2s; }
  .guide-option:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-section-alt); }
  .pricing-quick-nav { display: flex; justify-content: center; gap: 16px; margin: 32px 0; flex-wrap: wrap; }
  .pricing-quick-btn { width: 56px; height: 56px; border-radius: 50%; background: var(--color-white); border: 2px solid var(--color-border); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s; text-decoration: none; }
  .pricing-quick-btn:hover { border-color: var(--color-primary); background: var(--color-section-alt); transform: translateY(-2px); }
  .pricing-quick-btn svg { width: 22px; height: 22px; }
  .radar-chart { margin-top: 16px; display: none; }
  .gradient-text { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
  .nav-logo span.brand-en { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
  .nav-link-btn.nav-cta, .nav-cta { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)) !important; }
  .footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary)); }
  .footer { position: relative; overflow: hidden; }
  .footer-brand .footer-logo { background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
  .card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
  .monitor-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
  .industry-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
  .solution-step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
  .why-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
  @media (max-width: 900px) { .guide-questions { grid-template-columns: 1fr; } }


  /* Nav Dropdown */
  .nav-dropdown { position: relative; display: inline-block; }
  .dropdown-toggle { background: none !important; border: none; color: var(--color-text-primary); cursor: pointer; font-size: 14px; font-weight: 500; padding: 8px 16px; border-radius: 8px; transition: all 0.2s; }
  .dropdown-toggle:hover { color: var(--color-primary); background: var(--color-section-alt) !important; }
  .dropdown-menu { display: none; position: absolute; top: 100%; left: 0; background: var(--color-white); border: 1px solid var(--color-border); border-radius: 12px; padding: 8px 0; min-width: 180px; box-shadow: 0 8px 30px rgba(0,0,0,0.1); z-index: 1000; }
  .nav-dropdown.open .dropdown-menu { display: block; }
  .dropdown-item { display: block; width: 100%; text-align: left; padding: 10px 20px; background: none; border: none; cursor: pointer; font-size: 14px; color: var(--color-text-primary); transition: background 0.2s; }
  .dropdown-item:hover { background: var(--color-section-alt); color: var(--color-primary); }




/* ── AI Q&A Demo ── */
  .ai-qa-demo { background: #1A1A2E; border-radius: 16px; padding: 24px; margin: 40px auto; max-width: 700px; }
  .ai-qa-header-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
  .ai-qa-dot { width: 10px; height: 10px; border-radius: 50%; }
  .ai-qa-dot:nth-child(1) { background: #FF6B6B; }
  .ai-qa-dot:nth-child(2) { background: #FDCB6E; }
  .ai-qa-dot:nth-child(3) { background: #00C48C; }
  .ai-qa-title-bar { font-size: 11px; color: rgba(255,255,255,0.5); letter-spacing: 1px; margin-left: auto; }
  .ai-qa-bubbles { display: flex; flex-direction: column; gap: 16px; }
  .ai-qa-slide { display: flex; flex-direction: column; gap: 8px; }
  .ai-qa-q-bubble { background: rgba(108,92,231,0.2); border: 1px solid rgba(108,92,231,0.3); border-radius: 12px 12px 12px 4px; padding: 12px 16px; color: #fff; font-size: 14px; display: flex; align-items: center; gap: 8px; align-self: flex-start; max-width: 80%; }
  .ai-qa-a-bubble { background: rgba(0,210,255,0.1); border: 1px solid rgba(0,210,255,0.2); border-radius: 12px 12px 4px 12px; padding: 12px 16px; color: rgba(255,255,255,0.85); font-size: 13px; line-height: 1.6; display: flex; gap: 8px; align-self: flex-end; max-width: 90%; }
  .qa-icon { font-size: 16px; flex-shrink: 0; }
  .qa-text { flex: 1; }
  .qa-highlight { color: #00D2FF; font-weight: 700; }

  /* ── Solution Flow Visualization ── */
  .solution-flow-viz { margin: 40px auto; }
  .solution-flow-nodes { display: flex; align-items: center; justify-content: center; gap: 0; }
  .flow-node { display: flex; flex-direction: column; align-items: center; text-align: center; }
  .flow-node-circle { width: 80px; height: 80px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 28px; background: linear-gradient(135deg, #F3F0FF, #E8EAF6); border: 2px solid var(--color-primary); margin-bottom: 8px; }
  .flow-node-label { font-size: 10px; font-weight: 700; color: var(--color-primary); letter-spacing: 1px; text-transform: uppercase; }
  .flow-node-title { font-size: 13px; font-weight: 700; color: var(--color-navy); margin-top: 4px; }
  .flow-connector { width: 80px; height: 2px; position: relative; margin: 0 -4px; margin-bottom: 40px; }
  .flow-connector-line { width: 100%; height: 2px; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); position: relative; }
  .flow-connector-line::after { content: '▶'; position: absolute; right: -6px; top: -8px; color: var(--color-accent); font-size: 10px; }
  .flow-connector-dot { display: none; }

  /* ── Industry Scenario Strip ── */
  .industry-scenario-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 32px 0; }
  .scenario-mini-card { background: var(--color-white); border: 1px solid var(--color-border); border-radius: 16px; padding: 20px; transition: all 0.3s; }
  .scenario-mini-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(108,92,231,0.1); border-color: var(--color-primary); }
  .scenario-mini-label { font-size: 13px; font-weight: 700; color: var(--color-navy); margin-bottom: 12px; }
  .scenario-mini-search { display: flex; align-items: center; gap: 8px; background: var(--color-bg); border-radius: 8px; padding: 8px 12px; margin-bottom: 12px; font-size: 12px; color: var(--color-text-secondary); }
  .sms-icon { font-size: 14px; }
  .sms-text { flex: 1; }
  .scenario-mini-result { display: flex; gap: 8px; font-size: 11px; color: var(--color-text-secondary); line-height: 1.6; }
  .smr-icon { font-size: 14px; flex-shrink: 0; }
  .smr-text { flex: 1; }
  .smr-text strong { color: var(--color-primary); }