:root {
            --rc1gu-primary: #1e56ff;
            --rc1gu-secondary: #6c2cf5;
            --rc1gu-accent: #00d2ff;
            --rc1gu-dark: #0f172a;
            --rc1gu-light: #f8fafc;
            --rc1gu-text: #334155;
            --rc1gu-text-muted: #64748b;
            --rc1gu-white: #ffffff;
            --rc1gu-radius: 16px;
            --rc1gu-gap: 8px;
            --rc1gu-container: 1400px;
        }

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

        body {
            font-family: "Inter", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--rc1gu-light);
            color: var(--rc1gu-text);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            transition: all 0.3s ease;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        /* 布局规范 */
        .rc1gu-container {
            max-width: var(--rc1gu-container);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .rc1gu-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .rc1gu-flex > * {
            min-width: 0;
        }

        .rc1gu-grid {
            display: grid;
            gap: 24px;
        }

        /* 导航栏 */
        .rc1gu-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .rc1gu-header.rc1gu-scrolled {
            padding: 8px 0;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }

        .rc1gu-nav-container {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

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

        .rc1gu-logo img {
            height: 36px;
            width: auto;
        }

        .rc1gu-nav-menu {
            display: flex;
            gap: 16px;
        }

        .rc1gu-nav-link {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--rc1gu-text);
            border-radius: 8px;
        }

        .rc1gu-nav-link:hover {
            color: var(--rc1gu-primary);
            background: rgba(30, 86, 255, 0.05);
        }

        .rc1gu-nav-link.active {
            color: var(--rc1gu-primary);
            background: rgba(30, 86, 255, 0.1);
        }

        /* Hero 区域 */
        .rc1gu-hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 90% 10%, rgba(30, 86, 255, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(108, 44, 245, 0.08) 0%, transparent 40%);
            position: relative;
            overflow: hidden;
        }

        .rc1gu-hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .rc1gu-badge {
            display: inline-block;
            padding: 6px 16px;
            background: linear-gradient(90deg, var(--rc1gu-primary), var(--rc1gu-secondary));
            color: white;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            box-shadow: 0 4px 15px rgba(30, 86, 255, 0.3);
        }

        .rc1gu-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.2rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--rc1gu-dark);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .rc1gu-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--rc1gu-text-muted);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .rc1gu-cta-group {
            display: flex;
            justify-content: center;
            gap: 16px;
        }

        .rc1gu-btn {
            padding: 16px 36px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

        .rc1gu-btn-primary {
            background: var(--rc1gu-primary);
            color: white;
            box-shadow: 0 10px 20px rgba(30, 86, 255, 0.2);
        }

        .rc1gu-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(30, 86, 255, 0.3);
        }

        .rc1gu-btn-outline {
            background: transparent;
            border: 2px solid #e2e8f0;
            color: var(--rc1gu-text);
        }

        .rc1gu-btn-outline:hover {
            background: #f1f5f9;
            border-color: #cbd5e1;
        }

        /* 行业解决方案轨道 */
        .rc1gu-industry-section {
            padding: 100px 0;
            background: var(--rc1gu-white);
        }

        .rc1gu-section-header {
            margin-bottom: 64px;
            text-align: left;
        }

        .rc1gu-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            font-weight: 700;
            color: var(--rc1gu-dark);
            margin-bottom: 16px;
        }

        .rc1gu-industry-grid {
            grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
        }

        .rc1gu-industry-card {
            background: var(--rc1gu-light);
            border-radius: var(--rc1gu-radius);
            padding: 40px;
            transition: all 0.4s ease;
            border: 1px solid rgba(0, 0, 0, 0.03);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .rc1gu-industry-card:hover {
            background: var(--rc1gu-white);
            transform: translateY(-10px);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
            border-color: var(--rc1gu-primary);
        }

        .rc1gu-industry-icon {
            width: 64px;
            height: 64px;
            background: var(--rc1gu-white);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 24px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
        }

        .rc1gu-industry-name {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--rc1gu-dark);
        }

        .rc1gu-industry-workflow {
            font-size: 16px;
            line-height: 1.7;
            color: var(--rc1gu-text);
            margin-bottom: 20px;
            padding-left: 16px;
            border-left: 3px solid var(--rc1gu-primary);
        }

        .rc1gu-industry-advantage {
            margin-top: auto;
            font-size: 14px;
            color: var(--rc1gu-text-muted);
            background: rgba(0, 0, 0, 0.03);
            padding: 12px 16px;
            border-radius: 8px;
        }

        /* 安全装甲系统 */
        .rc1gu-security-section {
            padding: 100px 0;
            background: var(--rc1gu-dark);
            color: var(--rc1gu-white);
            position: relative;
        }

        .rc1gu-security-grid {
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        }

        .rc1gu-security-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 32px;
            border-radius: var(--rc1gu-radius);
            transition: all 0.3s ease;
        }

        .rc1gu-security-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--rc1gu-accent);
        }

        .rc1gu-protocol-tag {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--rc1gu-accent);
            margin-bottom: 12px;
            font-weight: 700;
        }

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

        .rc1gu-technical-detail {
            font-size: 15px;
            opacity: 0.8;
            margin-bottom: 16px;
            line-height: 1.6;
        }

        .rc1gu-implementation {
            font-size: 14px;
            padding: 12px;
            background: rgba(0, 210, 255, 0.1);
            border-radius: 8px;
            color: var(--rc1gu-accent);
        }

        /* 动态内容标记 */
        .rc1gu-articles {
            padding: 100px 0;
            background: #f1f5f9;
        }

        /* 页脚 */
        .rc1gu-footer {
            background: var(--rc1gu-white);
            padding: 80px 0 40px;
            border-top: 1px solid #e2e8f0;
        }

        .rc1gu-footer-grid {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            margin-bottom: 60px;
        }

        .rc1gu-footer-brand-text {
            font-size: 24px;
            font-weight: 800;
            color: var(--rc1gu-dark);
            margin-bottom: 20px;
            display: block;
        }

        .rc1gu-footer-desc {
            color: var(--rc1gu-text-muted);
            font-size: 14px;
            max-width: 260px;
        }

        .rc1gu-footer-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--rc1gu-dark);
        }

        .rc1gu-footer-link {
            display: block;
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--rc1gu-text-muted);
        }

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

        .rc1gu-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #f1f5f9;
            font-size: 13px;
            color: var(--rc1gu-text-muted);
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .rc1gu-nav-menu {
                display: none; /* 简化演示：移动端隐藏菜单 */
            }
            .rc1gu-hero-title {
                font-size: 3rem;
            }
        }

        @media (max-width: 768px) {
            .rc1gu-grid {
                grid-template-columns: 1fr !important;
            }
            .rc1gu-cta-group {
                flex-direction: column;
            }
            .rc1gu-hero {
                padding: 120px 0 60px;
            }
            .rc1gu-industry-card {
                padding: 24px;
            }
        }

        /* 动画增强 */
        .rc1gu-fade-in {
            animation: rc1guFadeIn 0.8s ease-out forwards;
        }

        @keyframes rc1guFadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }