/* Base Reset & Variables */
        :root {
            --su4j14-primary: #ff4b2b;
            --su4j14-secondary: #2b32b2;
            --su4j14-dark: #0f172a;
            --su4j14-light: #f8fafc;
            --su4j14-accent: #10b981;
            --su4j14-text: #334155;
            --su4j14-container-width: 1100px;
            --su4j14-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "Inter", "Microsoft YaHei", sans-serif;
            line-height: 1.7;
            color: var(--su4j14-text);
            background-color: #fff;
            overflow-x: hidden;
        }

        /* Utility Classes */
        .su4j14-container {
            max-width: var(--su4j14-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .su4j14-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .su4j14-grid {
            display: grid;
            gap: 32px;
        }

        .su4j14-text-center { text-align: center; }
        .su4j14-mb-48 { margin-bottom: 48px; }
        .su4j14-mb-24 { margin-bottom: 24px; }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.3;
            word-break: keep-all;
            overflow-wrap: break-word;
            color: var(--su4j14-dark);
        }

        p {
            word-break: break-word;
            overflow-wrap: break-word;
            font-size: clamp(1rem, 0.5vw + 0.8rem, 1.125rem);
        }

        /* Navigation */
        .su4j14-nav-wrapper {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .su4j14-nav-container {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .su4j14-logo img {
            height: 32px;
            width: auto;
        }

        .su4j14-menu {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        .su4j14-menu a {
            text-decoration: none;
            color: var(--su4j14-text);
            font-weight: 500;
            font-size: 15px;
            transition: var(--su4j14-transition);
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
        }

        .su4j14-menu a:hover, .su4j14-menu a.su4j14-active {
            color: var(--su4j14-primary);
            border-bottom-color: var(--su4j14-primary);
        }

        /* Hero Section - Asymmetric Layout */
        .su4j14-hero {
            padding: 160px 0 96px;
            background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
            position: relative;
            overflow: hidden;
        }

        .su4j14-hero::before {
            content: "";
            position: absolute;
            top: -10%;
            right: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255,75,43,0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .su4j14-hero-content {
            max-width: 700px;
            position: relative;
            z-index: 2;
        }

        .su4j14-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(to right, var(--su4j14-dark), var(--su4j14-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .su4j14-hero-subtitle {
            font-size: 1.25rem;
            color: var(--su4j14-text);
            margin-bottom: 32px;
        }

        /* Feature Section - Cards with Glassmorphism */
        .su4j14-section {
            padding: 96px 0;
        }

        .su4j14-tech-grid {
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        }

        .su4j14-tech-card {
            background: #fff;
            padding: 48px;
            border-radius: 24px;
            border: 1px solid #f1f5f9;
            transition: var(--su4j14-transition);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .su4j14-tech-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            border-color: var(--su4j14-primary);
        }

        .su4j14-tech-icon-wrapper {
            width: 56px;
            height: 56px;
            background: var(--su4j14-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--su4j14-primary);
        }

        .su4j14-tech-name {
            font-size: 1.5rem;
            font-weight: 700;
        }

        .su4j14-tech-benefit {
            font-weight: 600;
            color: var(--su4j14-accent);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* Workflow Section - Vertical Steps */
        .su4j14-workflow-bg {
            background-color: var(--su4j14-dark);
            color: #fff;
        }

        .su4j14-workflow-bg h2 {
            color: #fff;
        }

        .su4j14-workflow-container {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .su4j14-workflow-item {
            display: flex;
            gap: 40px;
            margin-bottom: 64px;
            position: relative;
            min-width: 0;
        }

        .su4j14-step-num {
            font-size: 3rem;
            font-weight: 900;
            color: rgba(255,255,255,0.1);
            line-height: 1;
        }

        .su4j14-step-content {
            flex: 1;
            min-width: 0;
        }

        .su4j14-step-phase {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--su4j14-primary);
        }

        /* Access Tier - Interactive pricing */
        .su4j14-tier-grid {
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        }

        .su4j14-tier-card {
            padding: 40px;
            border-radius: 20px;
            background: #fff;
            border: 2px solid #f1f5f9;
            transition: var(--su4j14-transition);
        }

        .su4j14-tier-card.su4j14-featured {
            border-color: var(--su4j14-primary);
            transform: scale(1.05);
            z-index: 2;
        }

        .su4j14-tier-name {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .su4j14-tier-target {
            color: var(--su4j14-text);
            opacity: 0.7;
            margin-bottom: 24px;
            display: block;
        }

        .su4j14-feature-list {
            list-style: none;
            margin-top: 24px;
        }

        .su4j14-feature-list li {
            padding: 10px 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .su4j14-feature-list li::before {
            content: "•";
            color: var(--su4j14-primary);
            font-weight: bold;
        }

        /* Footer */
        .su4j14-footer {
            padding: 80px 0 40px;
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
        }

        .su4j14-footer-bottom {
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid #e2e8f0;
            text-align: center;
            font-size: 0.9rem;
            color: #94a3b8;
        }

        .su4j14-footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--su4j14-dark);
            margin-bottom: 16px;
        }

        /* Buttons */
        .su4j14-btn {
            display: inline-block;
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--su4j14-transition);
            cursor: pointer;
            border: none;
        }

        .su4j14-btn-primary {
            background: linear-gradient(135deg, var(--su4j14-primary) 0%, #ff7b54 100%);
            color: #fff;
            box-shadow: 0 10px 20px rgba(255,75,43,0.2);
        }

        .su4j14-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255,75,43,0.3);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .su4j14-menu {
                display: none; /* In a real site, implement a mobile burger menu */
            }
            
            .su4j14-hero-content {
                text-align: center;
            }

            .su4j14-workflow-item {
                flex-direction: column;
                gap: 10px;
            }

            .su4j14-tier-card.su4j14-featured {
                transform: scale(1);
            }
        }