:root {
            --rc1gu-primary: #0052D9;
            --rc1gu-primary-light: #ecf2fe;
            --rc1gu-text-dark: #1d1d1f;
            --rc1gu-text-gray: #86868b;
            --rc1gu-bg-light: #f5f5f7;
            --rc1gu-white: #ffffff;
            --rc1gu-accent: #00C2FF;
            --rc1gu-max-width: 1300px;
            --rc1gu-radius: 16px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--rc1gu-text-dark);
            background-color: var(--rc1gu-white);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Typography */
        h1, h2, h3 {
            word-break: keep-all;
            line-height: 1.2;
            font-weight: 700;
        }

        p {
            word-break: break-word;
            overflow-wrap: break-word;
            line-height: 1.8;
        }

        /* Navigation */
        .rc1gu-nav-wrapper {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .rc1gu-nav-container {
            max-width: var(--rc1gu-max-width);
            margin: 0 auto;
            padding: 0 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .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 a {
            text-decoration: none;
            color: var(--rc1gu-text-dark);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

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

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

        .rc1gu-menu a.rc1gu-active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--rc1gu-primary);
        }

        /* Hero Section */
        .rc1gu-hero {
            padding: 160px 32px 96px;
            background: radial-gradient(circle at 80% 20%, var(--rc1gu-primary-light) 0%, var(--rc1gu-white) 40%);
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .rc1gu-hero-content {
            max-width: 900px;
            min-width: 0;
        }

        .rc1gu-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--rc1gu-primary-light);
            color: var(--rc1gu-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .rc1gu-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #1d1d1f 0%, #0052D9 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .rc1gu-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.5rem);
            color: var(--rc1gu-text-gray);
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .rc1gu-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            min-width: 0;
        }

        .rc1gu-btn {
            padding: 16px 40px;
            border-radius: 100px;
            font-size: 17px;
            font-weight: 600;
            text-decoration: none;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
        }

        .rc1gu-btn-primary {
            background: var(--rc1gu-primary);
            color: var(--rc1gu-white);
            box-shadow: 0 8px 20px rgba(0, 82, 217, 0.2);
        }

        .rc1gu-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(0, 82, 217, 0.3);
        }

        /* Industry Solutions Section */
        .rc1gu-industry {
            padding: 96px 32px;
            background: var(--rc1gu-bg-light);
        }

        .rc1gu-section-header {
            max-width: var(--rc1gu-max-width);
            margin: 0 auto 64px;
            text-align: left;
            min-width: 0;
        }

        .rc1gu-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 3rem);
            margin-bottom: 16px;
        }

        .rc1gu-industry-grid {
            max-width: var(--rc1gu-max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .rc1gu-industry-card {
            background: var(--rc1gu-white);
            border-radius: var(--rc1gu-radius);
            padding: 48px;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .rc1gu-industry-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        }

        .rc1gu-industry-tag {
            color: var(--rc1gu-primary);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 24px;
            font-size: 13px;
        }

        .rc1gu-industry-name {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .rc1gu-industry-workflow {
            font-size: 16px;
            color: var(--rc1gu-text-gray);
            margin-bottom: 32px;
            flex-grow: 1;
        }

        .rc1gu-industry-advantage {
            background: var(--rc1gu-primary-light);
            padding: 16px 24px;
            border-radius: 12px;
            font-size: 14px;
            color: var(--rc1gu-primary);
            font-weight: 500;
        }

        /* Security Section */
        .rc1gu-security {
            padding: 120px 32px;
            background: var(--rc1gu-text-dark);
            color: var(--rc1gu-white);
        }

        .rc1gu-security-container {
            max-width: var(--rc1gu-max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: center;
        }

        .rc1gu-security-info {
            flex: 1;
            min-width: 320px;
        }

        .rc1gu-security-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .rc1gu-security-list {
            list-style: none;
            margin-top: 48px;
        }

        .rc1gu-security-item {
            margin-bottom: 40px;
            padding-left: 24px;
            border-left: 3px solid var(--rc1gu-primary);
            min-width: 0;
        }

        .rc1gu-security-item h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .rc1gu-security-item p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
        }

        .rc1gu-security-detail {
            font-size: 13px;
            color: var(--rc1gu-accent);
            margin-top: 8px;
            display: block;
        }

        /* Dynamic Section Marker */
        .rc1gu-dynamic-section {
            padding: 80px 32px;
            background: var(--rc1gu-white);
        }

        /* Footer */
        .rc1gu-footer {
            background: var(--rc1gu-bg-light);
            padding: 80px 32px 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .rc1gu-footer-grid {
            max-width: var(--rc1gu-max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .rc1gu-footer-brand {
            flex: 1.5;
            min-width: 240px;
        }

        .rc1gu-footer-brand-name {
            font-size: 24px;
            font-weight: 800;
            color: var(--rc1gu-primary);
            margin-bottom: 16px;
        }

        .rc1gu-footer-links {
            flex: 1;
            min-width: 160px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rc1gu-footer-links h4 {
            margin-bottom: 12px;
            font-size: 16px;
        }

        .rc1gu-footer-links a {
            text-decoration: none;
            color: var(--rc1gu-text-gray);
            font-size: 14px;
            transition: color 0.3s;
        }

        .rc1gu-footer-links a:hover {
            color: var(--rc1gu-primary);
        }

        .rc1gu-copyright {
            max-width: var(--rc1gu-max-width);
            margin: 64px auto 0;
            padding-top: 32px;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            color: var(--rc1gu-text-gray);
            font-size: 13px;
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .rc1gu-nav-container {
                height: auto;
                padding: 16px;
            }
            .rc1gu-menu {
                width: 100%;
                margin-top: 16px;
                gap: 12px;
                justify-content: center;
            }
            .rc1gu-hero {
                padding-top: 120px;
            }
            .rc1gu-industry-card {
                padding: 32px;
            }
        }

        /* Decorative Element */
        .rc1gu-abstract-shape {
            width: 300px;
            height: 300px;
            background: linear-gradient(45deg, var(--rc1gu-primary), var(--rc1gu-accent));
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            filter: blur(80px);
            opacity: 0.1;
            position: absolute;
            z-index: -1;
        }