:root {
            --xa698d-primary: #D42323;
            --xa698d-primary-dark: #B01B1B;
            --xa698d-secondary: #1E293B;
            --xa698d-accent: #3B82F6;
            --xa698d-bg: #F8FAFC;
            --xa698d-text: #334155;
            --xa698d-text-light: #64748B;
            --xa698d-white: #FFFFFF;
            --xa698d-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
            --xa698d-max-width: 1320px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--xa698d-bg);
            color: var(--xa698d-text);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* Layout Helpers */
        .xa698d-container {
            max-width: var(--xa698d-max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .xa698d-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .xa698d-flex > * {
            min-width: 0;
        }

        /* Header & Nav */
        .xa698d-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .xa698d-header.xa698d-scrolled {
            box-shadow: var(--xa698d-shadow);
        }

        .xa698d-nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .xa698d-logo img {
            height: 40px;
            width: auto;
        }

        .xa698d-nav-menu {
            display: flex;
            list-style: none;
            gap: 24px;
        }

        .xa698d-nav-link {
            text-decoration: none;
            color: var(--xa698d-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s;
        }

        .xa698d-nav-link:hover, .xa698d-nav-link.active {
            color: var(--xa698d-primary);
        }

        /* Hero Section - Unique Diagonal Design */
        .xa698d-hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #fff 0%, #f1f5f9 100%);
            position: relative;
            overflow: hidden;
        }

        .xa698d-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -5%;
            width: 50%;
            height: 120%;
            background: rgba(212, 35, 35, 0.03);
            transform: skewX(-15deg);
            z-index: 0;
        }

        .xa698d-hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .xa698d-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--xa698d-secondary);
            font-weight: 800;
            word-break: keep-all;
        }

        .xa698d-hero-subtitle {
            font-size: clamp(1.1rem, 1vw + 0.5rem, 1.4rem);
            color: var(--xa698d-text-light);
            margin-bottom: 48px;
        }

        /* Unique Conversion UI Console */
        .xa698d-convert-console {
            background: var(--xa698d-white);
            border-radius: 24px;
            padding: 40px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            align-items: center;
            max-width: 700px;
            margin: 0 auto;
            transition: transform 0.3s ease;
        }

        .xa698d-convert-console:hover {
            transform: translateY(-5px);
        }

        .xa698d-dropzone {
            width: 100%;
            border: 2px dashed #E2E8F0;
            border-radius: 16px;
            padding: 60px 20px;
            cursor: pointer;
            transition: all 0.3s;
            margin-bottom: 24px;
            background: #F8FAFC;
        }

        .xa698d-dropzone:hover {
            border-color: var(--xa698d-primary);
            background: rgba(212, 35, 35, 0.02);
        }

        .xa698d-btn-primary {
            background: linear-gradient(to right, var(--xa698d-primary), var(--xa698d-primary-dark));
            color: white;
            padding: 16px 48px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 10px 20px -5px rgba(212, 35, 35, 0.4);
            display: inline-block;
        }

        .xa698d-btn-primary:hover {
            transform: scale(1.05);
            box-shadow: 0 15px 25px -5px rgba(212, 35, 35, 0.5);
        }

        /* Technical Layers Section */
        .xa698d-section {
            padding: 96px 0;
        }

        .xa698d-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .xa698d-section-title h2 {
            font-size: clamp(2rem, 3vw, 2.5rem);
            color: var(--xa698d-secondary);
            margin-bottom: 16px;
        }

        .xa698d-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .xa698d-tech-card {
            background: var(--xa698d-white);
            padding: 40px;
            border-radius: 20px;
            transition: all 0.3s;
            border: 1px solid #f1f5f9;
        }

        .xa698d-tech-card:hover {
            box-shadow: var(--xa698d-shadow);
            border-color: transparent;
        }

        .xa698d-tech-tag {
            background: rgba(59, 130, 246, 0.1);
            color: var(--xa698d-accent);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 16px;
            display: inline-block;
        }

        .xa698d-tech-card h3 {
            margin-bottom: 16px;
            font-size: 1.5rem;
        }

        .xa698d-tech-list {
            margin-top: 20px;
            list-style: none;
        }

        .xa698d-tech-list li {
            font-size: 0.9rem;
            color: var(--xa698d-text-light);
            padding-left: 20px;
            position: relative;
            margin-bottom: 8px;
        }

        .xa698d-tech-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--xa698d-primary);
        }

        /* Version Matrix - Staggered Layout */
        .xa698d-bg-light {
            background-color: #f1f5f9;
        }

        .xa698d-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 40px;
        }

        .xa698d-version-card {
            background: var(--xa698d-white);
            border-radius: 24px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .xa698d-version-header {
            padding: 32px;
            background: var(--xa698d-secondary);
            color: white;
        }

        .xa698d-version-body {
            padding: 32px;
            flex-grow: 1;
        }

        .xa698d-spec-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 0.9rem;
        }

        .xa698d-exclusive {
            margin-top: 24px;
            padding: 16px;
            background: rgba(212, 35, 35, 0.05);
            border-radius: 12px;
            color: var(--xa698d-primary);
            font-weight: 500;
        }

        /* Feedback Section */
        .xa698d-feedback-container {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding: 20px 0;
            scrollbar-width: none;
        }

        .xa698d-feedback-card {
            min-width: 350px;
            background: white;
            padding: 32px;
            border-radius: 16px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
        }

        .xa698d-rating {
            color: #FBBF24;
            margin-bottom: 12px;
        }

        /* Knowledge Base */
        .xa698d-article-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .xa698d-article-item {
            background: white;
            padding: 24px;
            margin-bottom: 16px;
            border-radius: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: transform 0.2s;
            text-decoration: none;
            color: inherit;
        }

        .xa698d-article-item:hover {
            transform: translateX(10px);
            background: #fff;
            box-shadow: var(--xa698d-shadow);
        }

        /* Footer */
        .xa698d-footer {
            background: var(--xa698d-secondary);
            color: rgba(255,255,255,0.7);
            padding: 80px 0 40px;
        }

        .xa698d-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .xa698d-footer-brand h2 {
            color: white;
            margin-bottom: 24px;
        }

        .xa698d-footer-links h4 {
            color: white;
            margin-bottom: 24px;
        }

        .xa698d-footer-links ul {
            list-style: none;
        }

        .xa698d-footer-links li {
            margin-bottom: 12px;
        }

        .xa698d-footer-links a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s;
        }

        .xa698d-footer-links a:hover {
            color: white;
        }

        .xa698d-footer-bottom {
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 0.85rem;
        }

        /* Mobile Responsiveness */
        @media (max-width: 768px) {
            .xa698d-nav-menu {
                display: none; /* Simplification for creative design */
            }

            .xa698d-hero {
                padding: 120px 0 60px;
            }

            .xa698d-hero-title {
                word-break: break-all;
            }

            .xa698d-matrix-grid, .xa698d-tech-grid {
                grid-template-columns: 1fr;
            }

            .xa698d-article-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }