:root {
            --r6tl-primary: #FF6C37; /* Postman Orange */
            --r6tl-secondary: #00F2FE; /* Accent Color */
            --r6tl-dark: #212121;
            --r6tl-light: #F9F9F9;
            --r6tl-gray: #6B6B6B;
            --r6tl-glass: rgba(255, 255, 255, 0.8);
            --r6tl-spacing-unit: 8px;
            --r6tl-container-width: 1300px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: var(--r6tl-dark);
            background-color: #fff;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Typography */
        h1, h2, h3, h4 {
            line-height: 1.2;
            margin-bottom: calc(var(--r6tl-spacing-unit) * 2);
            white-space: normal;
            word-break: break-word;
        }

        h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
        h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 700; color: var(--r6tl-dark); }
        p { font-size: clamp(1rem, 1.5vw + 0.5rem, 1.125rem); line-height: 1.8; margin-bottom: 1.5rem; word-break: break-word; overflow-wrap: break-word; }

        /* Navigation */
        .r6tl-navbar {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--r6tl-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 16px 0;
        }

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

        .r6tl-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .r6tl-logo img {
            height: 40px;
            width: auto;
        }

        .r6tl-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 12px;
            min-width: 0;
        }

        .r6tl-nav-item {
            min-width: 0;
        }

        .r6tl-nav-link {
            text-decoration: none;
            color: var(--r6tl-gray);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .r6tl-nav-link:hover {
            color: var(--r6tl-primary);
            background: rgba(255, 108, 55, 0.05);
        }

        .r6tl-nav-link.active {
            color: var(--r6tl-primary);
            background: rgba(255, 108, 55, 0.1);
            font-weight: 700;
        }

        /* Hero Section - Unique Perspective Layout */
        .r6tl-hero {
            padding: 96px 24px;
            background: radial-gradient(circle at top right, #fff5f2, #ffffff);
            overflow: hidden;
            position: relative;
        }

        .r6tl-hero-inner {
            max-width: var(--r6tl-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .r6tl-hero-content {
            flex: 1 1 500px;
            min-width: 0;
        }

        .r6tl-hero-tag {
            display: inline-block;
            background: var(--r6tl-primary);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .r6tl-hero-visual {
            flex: 1 1 400px;
            min-width: 0;
            position: relative;
        }

        .r6tl-env-card {
            background: white;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border: 1px solid rgba(0,0,0,0.03);
            transform: perspective(1000px) rotateY(-10deg);
            transition: transform 0.5s ease;
        }

        .r6tl-env-card:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        /* Grid Layout for Orchestration Matrix */
        .r6tl-matrix-section {
            padding: 80px 24px;
            background: #fcfcfc;
        }

        .r6tl-section-title {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 64px;
        }

        .r6tl-grid-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
            max-width: var(--r6tl-container-width);
            margin: 0 auto;
        }

        .r6tl-matrix-card {
            background: white;
            border-radius: 20px;
            padding: 40px;
            border: 1px solid #eee;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .r6tl-matrix-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }

        .r6tl-stage-label {
            color: var(--r6tl-primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .r6tl-methodology {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--r6tl-dark);
        }

        .r6tl-payload-list {
            list-style: none;
            margin-top: auto;
        }

        .r6tl-payload-item {
            margin-bottom: 16px;
            padding-left: 24px;
            position: relative;
            font-size: 15px;
            color: var(--r6tl-gray);
        }

        .r6tl-payload-item::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--r6tl-secondary);
            font-weight: bold;
        }

        /* Tutorial/Steps Section */
        .r6tl-steps-section {
            padding: 80px 24px;
            max-width: var(--r6tl-container-width);
            margin: 0 auto;
        }

        .r6tl-step-row {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
            margin-bottom: 80px;
        }

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

        .r6tl-step-text {
            flex: 1 1 400px;
            min-width: 0;
        }

        .r6tl-step-image {
            flex: 1 1 500px;
            min-width: 0;
            background: #eee;
            border-radius: 12px;
            height: 300px; /* Placeholder */
            display: flex;
            align-items: center;
            justify-content: center;
            color: #999;
            font-style: italic;
            border: 2px dashed #ddd;
        }

        .r6tl-step-number {
            font-size: 48px;
            font-weight: 900;
            color: rgba(255, 108, 55, 0.1);
            line-height: 1;
            margin-bottom: -10px;
        }

        /* Footer */
        .r6tl-footer {
            background: var(--r6tl-dark);
            color: white;
            padding: 64px 24px 32px;
        }

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

        .r6tl-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .r6tl-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--r6tl-primary);
        }

        .r6tl-footer-links {
            flex: 2 1 600px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            min-width: 0;
        }

        .r6tl-footer-col {
            flex: 1 1 150px;
            min-width: 0;
        }

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

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

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

        .r6tl-footer-col a {
            color: #aaa;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

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

        .r6tl-copyright {
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            color: #666;
            font-size: 14px;
        }

        /* Utilities */
        .r6tl-btn {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .r6tl-btn-primary {
            background: linear-gradient(135deg, var(--r6tl-primary), #ff8c61);
            color: white;
            box-shadow: 0 10px 20px rgba(255, 108, 55, 0.2);
        }

        .r6tl-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 25px rgba(255, 108, 55, 0.3);
        }

        /* Mobile Adjustments */
        @media (max-width: 768px) {
            .r6tl-nav-menu {
                display: none; /* In a real site, implement a burger menu */
            }
            .r6tl-hero-inner {
                text-align: center;
                justify-content: center;
            }
            .r6tl-env-card {
                transform: none;
            }
            .r6tl-step-row {
                flex-direction: column !important;
            }
        }