:root {
            --w87eju-primary: #ff5000;
            --w87eju-primary-gradient: linear-gradient(135deg, #ff8c00 0%, #ff5000 100%);
            --w87eju-dark: #1d1d1f;
            --w87eju-gray: #86868b;
            --w87eju-light-bg: #f5f5f7;
            --w87eju-white: #ffffff;
            --w87eju-radius: 16px;
            --w87eju-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --w87eju-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            background-color: var(--w87eju-white);
            color: var(--w87eju-dark);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* Navigation */
        .w87eju-nav-wrapper {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            width: 90vw;
            max-width: 1100px;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-radius: 50px;
            box-shadow: var(--w87eju-shadow);
            border: 1px solid rgba(255,255,255,0.3);
            padding: 8px 24px;
        }

        .w87eju-nav-container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .w87eju-logo {
            flex: 0 0 auto;
            display: flex;
            align-items: center;
        }

        .w87eju-logo img {
            height: 32px;
            width: auto;
        }

        .w87eju-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
        }

        .w87eju-menu li {
            min-width: 0;
        }

        .w87eju-menu a {
            text-decoration: none;
            color: var(--w87eju-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 20px;
            transition: var(--w87eju-transition);
        }

        .w87eju-menu a:hover {
            color: var(--w87eju-primary);
            background: rgba(255, 80, 0, 0.05);
        }

        .w87eju-menu a.active {
            color: var(--w87eju-white);
            background: var(--w87eju-primary-gradient);
        }

        /* Hero Section */
        .w87eju-hero {
            padding: 160px 5% 80px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 80, 0, 0.05) 0%, transparent 40%);
            text-align: center;
        }

        .w87eju-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .w87eju-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 80, 0, 0.1);
            color: var(--w87eju-primary);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .w87eju-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            margin-bottom: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .w87eju-hero p {
            font-size: clamp(1.1rem, 1vw + 0.8rem, 1.4rem);
            color: var(--w87eju-gray);
            max-width: 700px;
            margin: 0 auto 40px;
        }

        /* Step Timeline Section */
        .w87eju-section {
            padding: 64px 5%;
            max-width: 1100px;
            margin: 0 auto;
        }

        .w87eju-sync-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .w87eju-step-card {
            background: var(--w87eju-light-bg);
            padding: 40px;
            border-radius: var(--w87eju-radius);
            transition: var(--w87eju-transition);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .w87eju-step-card:hover {
            transform: translateY(-10px);
            background: var(--w87eju-white);
            box-shadow: var(--w87eju-shadow);
            border-color: rgba(255, 80, 0, 0.1);
        }

        .w87eju-step-num {
            font-size: 64px;
            font-weight: 900;
            color: rgba(255, 80, 0, 0.1);
            position: absolute;
            top: -10px;
            right: 20px;
        }

        .w87eju-step-card h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--w87eju-dark);
        }

        /* Matrix Section */
        .w87eju-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .w87eju-matrix-item {
            padding: 32px;
            border-left: 4px solid var(--w87eju-primary);
            background: #fff;
            box-shadow: 0 4px 12px rgba(0,0,0,0.03);
            border-radius: 0 12px 12px 0;
        }

        .w87eju-matrix-item h4 {
            font-size: 20px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .w87eju-capacity-tag {
            display: inline-block;
            font-size: 12px;
            padding: 2px 8px;
            background: #f0f0f0;
            border-radius: 4px;
            margin-right: 6px;
            margin-bottom: 6px;
            color: var(--w87eju-gray);
        }

        /* Footer */
        .w87eju-footer {
            background: var(--w87eju-dark);
            color: var(--w87eju-white);
            padding: 80px 5% 40px;
            margin-top: 96px;
        }

        .w87eju-footer-content {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .w87eju-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            background: var(--w87eju-primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .w87eju-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .w87eju-footer-column h5 {
            font-size: 16px;
            margin-bottom: 20px;
            color: #fff;
        }

        .w87eju-footer-column ul {
            list-style: none;
        }

        .w87eju-footer-column li {
            margin-bottom: 12px;
        }

        .w87eju-footer-column a {
            color: var(--w87eju-gray);
            text-decoration: none;
            font-size: 14px;
            transition: var(--w87eju-transition);
        }

        .w87eju-footer-column a:hover {
            color: var(--w87eju-primary);
        }

        .w87eju-copyright {
            max-width: 1100px;
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            color: var(--w87eju-gray);
            font-size: 12px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .w87eju-nav-wrapper {
                top: 0;
                width: 100%;
                border-radius: 0;
                padding: 12px;
            }
            .w87eju-menu {
                display: none; /* In real project, would implement a mobile toggle */
            }
            .w87eju-hero {
                padding-top: 120px;
            }
            .w87eju-matrix-grid, .w87eju-sync-flow {
                grid-template-columns: 1fr;
            }
        }