:root {
            --rfq3-primary: #0066cc;
            --rfq3-accent: #f37021;
            --rfq3-dark: #1a1c1e;
            --rfq3-light: #f8fafc;
            --rfq3-gray: #64748b;
            --rfq3-diff-add: #e6ffec;
            --rfq3-diff-remove: #ffebe9;
            --rfq3-border: #e2e8f0;
            --rfq3-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            line-height: 1.7;
            color: var(--rfq3-dark);
            background-color: #ffffff;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* Layout Container */
        .rfq3-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .rfq3-header {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--rfq3-border);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

        .rfq3-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
        }

        .rfq3-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .rfq3-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .rfq3-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
        }

        .rfq3-menu-item {
            min-width: 0;
        }

        .rfq3-menu-link {
            text-decoration: none;
            color: var(--rfq3-gray);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
            padding: 8px 4px;
            display: block;
            word-break: break-word;
        }

        .rfq3-menu-link:hover {
            color: var(--rfq3-primary);
        }

        .rfq3-menu-link.rfq3-active {
            color: var(--rfq3-primary);
            border-bottom: 2px solid var(--rfq3-primary);
        }

        /* Hero Section - Split Design */
        .rfq3-hero {
            padding: 80px 0;
            background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
            overflow: hidden;
        }

        .rfq3-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .rfq3-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .rfq3-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--rfq3-dark);
        }

        .rfq3-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--rfq3-gray);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .rfq3-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .rfq3-code-window {
            background: #1e1e1e;
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--rfq3-shadow);
            color: #d4d4d4;
            font-family: "Consolas", monospace;
            font-size: 14px;
            transform: perspective(1000px) rotateY(-5deg);
            transition: transform 0.5s;
        }

        .rfq3-code-window:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        .rfq3-code-line {
            display: flex;
            gap: 15px;
            margin-bottom: 4px;
        }

        .rfq3-line-add { background: rgba(35, 78, 48, 0.4); border-left: 3px solid #2ea043; }
        .rfq3-line-del { background: rgba(103, 33, 33, 0.4); border-left: 3px solid #f85149; }

        /* Buttons */
        .rfq3-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .rfq3-btn {
            display: inline-block;
            padding: 16px 32px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            text-align: center;
            min-width: 200px;
        }

        .rfq3-btn-primary {
            background: linear-gradient(to right, var(--rfq3-primary), #0052a3);
            color: white;
            box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
        }

        .rfq3-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
        }

        /* Features Grid */
        .rfq3-section {
            padding: 96px 0;
            word-break: break-word;
        }

        .rfq3-section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 64px;
        }

        .rfq3-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .rfq3-card {
            background: white;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--rfq3-border);
            transition: all 0.3s ease;
            height: 100%;
            min-width: 0;
        }

        .rfq3-card:hover {
            border-color: var(--rfq3-primary);
            box-shadow: var(--rfq3-shadow);
            transform: translateY(-5px);
        }

        .rfq3-card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--rfq3-light);
            color: var(--rfq3-primary);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .rfq3-card-h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--rfq3-dark);
        }

        /* Comparison Specs Table */
        .rfq3-spec-box {
            background: var(--rfq3-light);
            border-radius: 16px;
            padding: 48px;
            margin-top: 48px;
        }

        .rfq3-spec-item {
            display: flex;
            flex-wrap: wrap;
            padding: 24px 0;
            border-bottom: 1px solid var(--rfq3-border);
            gap: 20px;
        }

        .rfq3-spec-label {
            flex: 0 0 240px;
            font-weight: 700;
            color: var(--rfq3-primary);
            min-width: 0;
        }

        .rfq3-spec-value {
            flex: 1;
            min-width: 280px;
        }

        /* Portable Advantage Section */
        .rfq3-portable-promo {
            background: var(--rfq3-dark);
            color: white;
            padding: 80px 0;
            border-radius: 24px;
            margin: 40px auto;
            text-align: center;
        }

        .rfq3-portable-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
        }

        .rfq3-portable-stat {
            flex: 1;
            min-width: 200px;
        }

        .rfq3-stat-num {
            font-size: 3rem;
            font-weight: 800;
            color: var(--rfq3-accent);
            display: block;
        }

        /* Latest Articles Section */
        .rfq3-articles-section {
            background: #fff;
        }

        .rfq3-article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .rfq3-article-item {
            padding: 24px;
            border-left: 4px solid var(--rfq3-primary);
            background: var(--rfq3-light);
        }

        /* Footer */
        .rfq3-footer {
            background: var(--rfq3-light);
            padding: 64px 0 32px;
            border-top: 1px solid var(--rfq3-border);
        }

        .rfq3-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 48px;
        }

        .rfq3-footer-brand {
            flex: 1;
            min-width: 240px;
        }

        .rfq3-footer-brand h2 {
            font-size: 24px;
            color: var(--rfq3-primary);
            margin-bottom: 16px;
        }

        .rfq3-footer-links {
            flex: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .rfq3-link-col {
            min-width: 140px;
        }

        .rfq3-link-col h4 {
            margin-bottom: 20px;
            font-size: 16px;
        }

        .rfq3-footer-link {
            display: block;
            color: var(--rfq3-gray);
            text-decoration: none;
            margin-bottom: 10px;
            font-size: 14px;
        }

        .rfq3-footer-link:hover {
            color: var(--rfq3-primary);
        }

        .rfq3-copyright {
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid var(--rfq3-border);
            color: var(--rfq3-gray);
            font-size: 14px;
        }

        /* Responsive Fixes */
        @media (max-width: 768px) {
            .rfq3-hero-grid { flex-direction: column; }
            .rfq3-hero-visual { order: -1; }
            .rfq3-nav-wrapper { justify-content: center; gap: 16px; }
            .rfq3-menu { justify-content: center; }
            .rfq3-section { padding: 64px 0; }
            .rfq3-spec-label { flex: 0 0 100%; }
        }