:root {
            --kz1b-primary: #D42328;
            --kz1b-accent: #FF9100;
            --kz1b-text-dark: #1D1D1F;
            --kz1b-text-light: #6E6E73;
            --kz1b-bg-soft: #F5F5F7;
            --kz1b-white: #FFFFFF;
            --kz1b-glass: rgba(255, 255, 255, 0.8);
            --kz1b-shadow: 0 8px 30px rgba(0,0,0,0.08);
            --kz1b-radius: 16px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--kz1b-text-dark);
            line-height: 1.6;
            background-color: var(--kz1b-white);
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* Fluid Typography */
        h1 { font-size: clamp(2rem, 5vw + 1rem, 3.5rem); line-height: 1.2; font-weight: 700; }
        h2 { font-size: clamp(1.5rem, 3vw + 1rem, 2.5rem); margin-bottom: 24px; font-weight: 600; }
        h3 { font-size: clamp(1.2rem, 2vw + 0.5rem, 1.8rem); margin-bottom: 16px; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); line-height: 1.8; color: var(--kz1b-text-light); }

        /* Layout Constraints */
        .kz1b-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Header & Navigation */
        .kz1b-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--kz1b-glass);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .kz1b-nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            flex-wrap: wrap;
        }

        .kz1b-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .kz1b-logo img {
            height: 32px;
            width: auto;
        }

        .kz1b-menu {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .kz1b-menu-item a {
            text-decoration: none;
            color: var(--kz1b-text-dark);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .kz1b-menu-item a:hover {
            color: var(--kz1b-primary);
        }

        .kz1b-menu-item.kz1b-active a {
            color: var(--kz1b-primary);
            position: relative;
        }

        .kz1b-menu-item.kz1b-active a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--kz1b-primary);
        }

        /* Hero Section */
        .kz1b-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 90% 10%, #fff5f5 0%, #ffffff 100%);
            overflow: hidden;
        }

        .kz1b-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .kz1b-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .kz1b-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(212, 35, 40, 0.1);
            color: var(--kz1b-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .kz1b-hero-title span {
            color: var(--kz1b-primary);
        }

        .kz1b-hero-image {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .kz1b-image-placeholder {
            width: 100%;
            aspect-ratio: 16/10;
            background: var(--kz1b-bg-soft);
            border-radius: var(--kz1b-radius);
            box-shadow: var(--kz1b-shadow);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .kz1b-image-placeholder::before {
            content: "Step-by-Step Guide Interface";
            color: var(--kz1b-text-light);
            font-weight: 500;
        }

        /* Step Guide Section */
        .kz1b-steps {
            padding: 96px 0;
            background: var(--kz1b-white);
        }

        .kz1b-section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 64px;
        }

        .kz1b-step-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .kz1b-step-card {
            background: var(--kz1b-bg-soft);
            padding: 40px;
            border-radius: var(--kz1b-radius);
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }

        .kz1b-step-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--kz1b-shadow);
            background: var(--kz1b-white);
            border-color: rgba(212, 35, 40, 0.1);
        }

        .kz1b-step-num {
            font-size: 48px;
            font-weight: 800;
            color: rgba(212, 35, 40, 0.1);
            margin-bottom: 16px;
        }

        /* Features Section */
        .kz1b-features {
            padding: 96px 0;
            background: var(--kz1b-text-dark);
            color: var(--kz1b-white);
            border-radius: 48px;
            margin: 0 24px;
        }

        .kz1b-features .kz1b-container {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .kz1b-feature-list {
            flex: 1;
            min-width: 300px;
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .kz1b-feature-item {
            display: flex;
            gap: 24px;
            min-width: 0;
        }

        .kz1b-feature-icon {
            width: 48px;
            height: 48px;
            background: var(--kz1b-primary);
            border-radius: 12px;
            flex-shrink: 0;
        }

        .kz1b-feature-text h3 {
            color: var(--kz1b-white);
            margin-bottom: 8px;
        }

        .kz1b-feature-text p {
            color: #A1A1A6;
        }

        /* Industry Solutions */
        .kz1b-solutions {
            padding: 96px 0;
        }

        .kz1b-solution-card {
            background: var(--kz1b-white);
            border: 1px solid #EDEDED;
            border-radius: var(--kz1b-radius);
            padding: 32px;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
        }

        .kz1b-solution-info {
            flex: 1;
            min-width: 280px;
        }

        .kz1b-solution-tools {
            flex: 1;
            min-width: 280px;
            background: var(--kz1b-bg-soft);
            padding: 24px;
            border-radius: 12px;
        }

        .kz1b-tool-tag {
            display: inline-block;
            background: var(--kz1b-white);
            padding: 8px 16px;
            margin: 4px;
            border-radius: 6px;
            font-size: 14px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        /* News Section */
        .kz1b-news {
            padding: 96px 0;
            background: #FAFAFA;
        }

        .kz1b-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 24px;
        }

        .kz1b-news-item {
            background: var(--kz1b-white);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid #EEE;
        }

        /* CTA Section */
        .kz1b-cta {
            padding: 96px 0;
            text-align: center;
        }

        .kz1b-btn {
            display: inline-block;
            padding: 18px 48px;
            background: var(--kz1b-primary);
            color: var(--kz1b-white);
            text-decoration: none;
            border-radius: 100px;
            font-weight: 600;
            transition: all 0.3s;
            margin: 10px;
            border: none;
            cursor: pointer;
        }

        .kz1b-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 20px rgba(212, 35, 40, 0.2);
        }

        .kz1b-btn-secondary {
            background: var(--kz1b-text-dark);
        }

        /* Footer */
        .kz1b-footer {
            background: var(--kz1b-bg-soft);
            padding: 80px 0 40px;
            margin-top: 64px;
        }

        .kz1b-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .kz1b-footer-brand h2 {
            font-size: 24px;
            color: var(--kz1b-primary);
            margin-bottom: 16px;
        }

        .kz1b-footer-links h4 {
            margin-bottom: 24px;
            font-weight: 600;
        }

        .kz1b-footer-links ul {
            list-style: none;
        }

        .kz1b-footer-links li {
            margin-bottom: 12px;
        }

        .kz1b-footer-links a {
            text-decoration: none;
            color: var(--kz1b-text-light);
            transition: color 0.3s;
        }

        .kz1b-footer-links a:hover {
            color: var(--kz1b-primary);
        }

        .kz1b-footer-bottom {
            padding-top: 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            font-size: 14px;
            color: var(--kz1b-text-light);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .kz1b-header { padding: 10px 0; }
            .kz1b-menu { display: none; } /* Simplified for demo, usually a hamburger */
            .kz1b-hero { padding-top: 120px; }
            .kz1b-features { margin: 0; border-radius: 0; }
            .kz1b-solution-card { flex-direction: column; }
        }

        /* Scroll Animation */
        .kz1b-reveal {
            opacity: 1; /* Safety: default visible */
            transition: all 0.8s ease-out;
        }