:root {
            --r6tl-primary: #FF6C37;
            --r6tl-primary-hover: #e55b2b;
            --r6tl-bg-soft: #f8f9fa;
            --r6tl-text-main: #212121;
            --r6tl-text-light: #6B6B6B;
            --r6tl-white: #ffffff;
            --r6tl-border: rgba(0, 0, 0, 0.08);
            --r6tl-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            --r6tl-accent: #00F2FE;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--r6tl-text-main);
            background-color: var(--r6tl-white);
            line-height: 1.7;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: break-word;
            margin-bottom: 1.5rem;
        }

        p {
            word-break: break-word;
            overflow-wrap: break-word;
            margin-bottom: 1rem;
            font-size: clamp(1rem, 0.2vw + 0.9rem, 1.1rem);
            color: var(--r6tl-text-light);
        }

        /* Navigation */
        .r6tl-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--r6tl-border);
        }

        .r6tl-nav-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .r6tl-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .r6tl-logo img {
            height: 32px;
            width: auto;
        }

        .r6tl-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
            min-width: 0;
        }

        .r6tl-menu-item a {
            text-decoration: none;
            color: var(--r6tl-text-main);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .r6tl-menu-item a:hover {
            color: var(--r6tl-primary);
        }

        .r6tl-menu-item a.r6tl-active {
            color: var(--r6tl-primary);
            border-bottom: 2px solid var(--r6tl-primary);
            padding-bottom: 4px;
        }

        /* Hero Section */
        .r6tl-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 108, 55, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(0, 242, 254, 0.05) 0%, transparent 40%);
            text-align: center;
        }

        .r6tl-hero-inner {
            max-width: 900px;
            margin: 0 auto;
        }

        .r6tl-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 108, 55, 0.1);
            color: var(--r6tl-primary);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .r6tl-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #1a1a1a;
        }

        .r6tl-hero p {
            font-size: clamp(1.1rem, 1vw + 0.5rem, 1.4rem);
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Matrix Section */
        .r6tl-section {
            padding: 96px 24px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .r6tl-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .r6tl-card {
            background: var(--r6tl-white);
            border: 1px solid var(--r6tl-border);
            border-radius: 16px;
            padding: 40px;
            transition: transform 0.3s ease, shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .r6tl-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--r6tl-shadow);
        }

        .r6tl-card-stage {
            font-size: 12px;
            text-transform: uppercase;
            color: var(--r6tl-primary);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .r6tl-card h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .r6tl-card-content {
            flex-grow: 1;
        }

        .r6tl-tool-tag {
            display: inline-block;
            background: var(--r6tl-bg-soft);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 13px;
            margin-bottom: 12px;
            font-weight: 600;
        }

        /* Step Guide Section */
        .r6tl-tutorial-steps {
            background: var(--r6tl-bg-soft);
            border-radius: 32px;
            padding: 80px 48px;
            margin: 64px auto;
            max-width: 1100px;
        }

        .r6tl-step-item {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-bottom: 64px;
            align-items: center;
        }

        .r6tl-step-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .r6tl-step-text {
            flex: 1;
            min-width: 300px;
        }

        .r6tl-step-visual {
            flex: 1;
            min-width: 300px;
            background: var(--r6tl-white);
            border-radius: 20px;
            height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 80px;
            box-shadow: var(--r6tl-shadow);
            border: 1px solid var(--r6tl-border);
        }

        .r6tl-step-num {
            font-size: 48px;
            font-weight: 900;
            color: rgba(255, 108, 55, 0.2);
            margin-bottom: -10px;
        }

        /* CTA Section */
        .r6tl-cta {
            text-align: center;
            padding: 80px 24px;
            background: var(--r6tl-text-main);
            color: var(--r6tl-white);
            border-radius: 24px;
            margin: 64px auto;
            max-width: 1100px;
        }

        .r6tl-cta h2 {
            color: var(--r6tl-white);
        }

        .r6tl-btn {
            display: inline-block;
            padding: 16px 40px;
            background: var(--r6tl-primary);
            color: var(--r6tl-white);
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-top: 24px;
        }

        .r6tl-btn:hover {
            background: var(--r6tl-primary-hover);
            transform: scale(1.05);
        }

        /* Footer */
        .r6tl-footer {
            padding: 80px 24px 40px;
            border-top: 1px solid var(--r6tl-border);
            margin-top: 80px;
        }

        .r6tl-footer-container {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .r6tl-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .r6tl-footer-brand-name {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--r6tl-primary);
        }

        .r6tl-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            flex: 2;
        }

        .r6tl-footer-col h4 {
            margin-bottom: 24px;
            font-size: 16px;
        }

        .r6tl-footer-col ul {
            list-style: none;
        }

        .r6tl-footer-col ul li {
            margin-bottom: 12px;
        }

        .r6tl-footer-col ul li a {
            text-decoration: none;
            color: var(--r6tl-text-light);
            transition: color 0.3s ease;
        }

        .r6tl-footer-col ul li a:hover {
            color: var(--r6tl-primary);
        }

        .r6tl-copyright {
            width: 100%;
            text-align: center;
            padding-top: 40px;
            margin-top: 40px;
            border-top: 1px solid var(--r6tl-border);
            color: var(--r6tl-text-light);
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .r6tl-nav-container {
                height: auto;
                padding: 16px 24px;
            }
            .r6tl-menu {
                margin-top: 16px;
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .r6tl-step-item, .r6tl-step-item:nth-child(even) {
                flex-direction: column;
                text-align: center;
            }
            .r6tl-matrix-grid {
                grid-template-columns: 1fr;
            }
            .r6tl-footer-links {
                gap: 32px;
            }
        }