:root {
            --rc1gu-primary: #0052cc;
            --rc1gu-accent: #ff4d4f;
            --rc1gu-text: #1d1d1f;
            --rc1gu-text-light: #86868b;
            --rc1gu-bg: #f5f5f7;
            --rc1gu-white: #ffffff;
            --rc1gu-glass: rgba(255, 255, 255, 0.8);
            --rc1gu-radius: 16px;
            --rc1gu-gap: 24px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--rc1gu-text);
            background-color: var(--rc1gu-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Layout Container */
        .rc1gu-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .rc1gu-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--rc1gu-glass);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .rc1gu-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            padding: 0 24px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .rc1gu-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .rc1gu-logo img {
            height: 32px;
            width: auto;
        }

        .rc1gu-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .rc1gu-menu-item a {
            text-decoration: none;
            color: var(--rc1gu-text);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .rc1gu-menu-item a:hover {
            color: var(--rc1gu-primary);
        }

        .rc1gu-menu-item a.active {
            color: var(--rc1gu-primary);
            position: relative;
        }

        .rc1gu-menu-item a.active::after {
            content: '';
            position: absolute;
            bottom: -22px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--rc1gu-primary);
        }

        /* Hero Section */
        .rc1gu-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(180deg, #fff 0%, var(--rc1gu-bg) 100%);
            text-align: center;
        }

        .rc1gu-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
            word-break: break-word;
        }

        .rc1gu-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.5rem);
            color: var(--rc1gu-text-light);
            max-width: 800px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        /* Interactive Guide Section */
        .rc1gu-guide-section {
            padding: 80px 0;
        }

        .rc1gu-guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .rc1gu-guide-card {
            background: var(--rc1gu-white);
            padding: 40px;
            border-radius: var(--rc1gu-radius);
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            min-width: 0;
            word-break: break-word;
        }

        .rc1gu-guide-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.08);
        }

        .rc1gu-step-num {
            display: inline-block;
            width: 32px;
            height: 32px;
            background: var(--rc1gu-primary);
            color: #fff;
            border-radius: 50%;
            text-align: center;
            line-height: 32px;
            font-weight: bold;
            margin-bottom: 20px;
        }

        /* Enterprise Armor Section */
        .rc1gu-armor-section {
            padding: 96px 0;
            background: #000;
            color: #fff;
            border-radius: 40px;
            margin: 40px 24px;
        }

        .rc1gu-armor-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
        }

        .rc1gu-armor-item {
            flex: 1;
            min-width: 280px;
        }

        .rc1gu-armor-tag {
            color: var(--rc1gu-accent);
            text-transform: uppercase;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 12px;
            display: block;
        }

        .rc1gu-armor-title {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .rc1gu-armor-desc {
            color: #a1a1a6;
            font-size: 16px;
        }

        /* Industry Solutions */
        .rc1gu-solution-section {
            padding: 96px 0;
        }

        .rc1gu-solution-row {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: center;
            margin-bottom: 80px;
        }

        .rc1gu-solution-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .rc1gu-solution-content {
            flex: 1;
            min-width: 300px;
        }

        .rc1gu-solution-media {
            flex: 1;
            min-width: 300px;
            background: #fff;
            padding: 24px;
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.05);
        }

        .rc1gu-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0,82,204,0.1);
            color: var(--rc1gu-primary);
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* Dynamic Content Section */
        .rc1gu-dynamic-section {
            padding: 80px 0;
            background: var(--rc1gu-white);
        }

        /* Footer */
        .rc1gu-footer {
            padding: 80px 0 40px;
            background: var(--rc1gu-white);
            border-top: 1px solid #e5e5e7;
        }

        .rc1gu-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            margin-bottom: 48px;
        }

        .rc1gu-footer-brand {
            flex: 2;
            min-width: 240px;
        }

        .rc1gu-brand-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .rc1gu-footer-links {
            flex: 3;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            min-width: 300px;
        }

        .rc1gu-link-group {
            min-width: 120px;
        }

        .rc1gu-link-group h4 {
            font-size: 14px;
            margin-bottom: 16px;
        }

        .rc1gu-link-group ul {
            list-style: none;
        }

        .rc1gu-link-group a {
            text-decoration: none;
            color: var(--rc1gu-text-light);
            font-size: 14px;
            display: block;
            margin-bottom: 8px;
        }

        /* Mobile Adjustments */
        @media (max-width: 768px) {
            .rc1gu-menu {
                display: none; /* In real case, add hamburger menu */
            }
            .rc1gu-hero-title {
                font-size: 32px;
            }
            .rc1gu-armor-section {
                margin: 20px 12px;
                padding: 48px 24px;
            }
            .rc1gu-solution-row {
                gap: 32px;
            }
        }