:root {
            --w87eju-primary: #ff6600;
            --w87eju-secondary: #ff8533;
            --w87eju-bg: #ffffff;
            --w87eju-text: #333333;
            --w87eju-text-light: #666666;
            --w87eju-accent: #f0f4f8;
            --w87eju-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --w87eju-radius: 16px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.7;
            color: var(--w87eju-text);
            background-color: var(--w87eju-bg);
            overflow-x: hidden;
            word-break: keep-all;
        }

        .w87eju-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .w87eju-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .w87eju-nav-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            min-width: 0;
        }

        .w87eju-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .w87eju-logo img {
            height: 40px;
            display: block;
        }

        .w87eju-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

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

        .w87eju-menu a {
            text-decoration: none;
            color: var(--w87eju-text);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .w87eju-menu a:hover, .w87eju-menu a.active {
            color: var(--w87eju-primary);
        }

        /* Hero Section - Centered Layout */
        .w87eju-hero {
            padding: 96px 0 64px;
            background: radial-gradient(circle at top right, #fff5f0 0%, #ffffff 70%);
            text-align: center;
            overflow: hidden;
        }

        .w87eju-hero-content {
            max-width: 800px;
            margin: 0 auto;
            word-break: break-word;
        }

        .w87eju-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: #1a1a1a;
            letter-spacing: -1px;
        }

        .w87eju-hero p {
            font-size: clamp(1.1rem, 1vw + 0.8rem, 1.4rem);
            color: var(--w87eju-text-light);
            margin-bottom: 40px;
        }

        .w87eju-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 102, 0, 0.1);
            color: var(--w87eju-primary);
            border-radius: 50px;
            font-size: 14px;
            margin-bottom: 16px;
            font-weight: 600;
        }

        /* Skin Display Grid */
        .w87eju-skin-showcase {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 48px;
            justify-content: center;
        }

        .w87eju-skin-item {
            flex: 1 1 200px;
            min-width: 0;
            border-radius: var(--w87eju-radius);
            height: 120px;
            background: #eee;
            position: relative;
            overflow: hidden;
            box-shadow: var(--w87eju-shadow);
            transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

        .w87eju-skin-item:hover {
            transform: translateY(-10px) scale(1.02);
        }

        .w87eju-skin-item:nth-child(1) { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
        .w87eju-skin-item:nth-child(2) { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
        .w87eju-skin-item:nth-child(3) { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
        .w87eju-skin-item:nth-child(4) { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }

        /* Guide Section */
        .w87eju-section {
            padding: 80px 0;
            word-break: break-word;
        }

        .w87eju-section-title {
            text-align: center;
            margin-bottom: 56px;
        }

        .w87eju-section-title h2 {
            font-size: clamp(1.8rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 16px;
        }

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

        .w87eju-guide-card {
            background: #fff;
            padding: 40px;
            border-radius: var(--w87eju-radius);
            border: 1px solid #f0f0f0;
            transition: all 0.3s ease;
            position: relative;
        }

        .w87eju-guide-card:hover {
            box-shadow: var(--w87eju-shadow);
            border-color: transparent;
        }

        .w87eju-step-num {
            font-size: 48px;
            font-weight: 900;
            color: rgba(255, 102, 0, 0.1);
            position: absolute;
            top: 20px;
            right: 30px;
        }

        .w87eju-guide-card h3 {
            font-size: 22px;
            margin-bottom: 16px;
            color: var(--w87eju-primary);
        }

        .w87eju-guide-card ul {
            list-style: none;
        }

        .w87eju-guide-card li {
            margin-bottom: 12px;
            padding-left: 24px;
            position: relative;
        }

        .w87eju-guide-card li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--w87eju-primary);
            font-weight: bold;
        }

        /* Matrix Section */
        .w87eju-matrix {
            background: #fafafa;
            padding: 80px 0;
        }

        .w87eju-matrix-container {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .w87eju-matrix-item {
            flex: 1 1 300px;
            min-width: 0;
            background: #fff;
            padding: 32px;
            border-radius: var(--w87eju-radius);
            box-shadow: 0 4px 12px rgba(0,0,0,0.03);
        }

        .w87eju-matrix-item h4 {
            color: #333;
            font-size: 20px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .w87eju-matrix-tag {
            font-size: 12px;
            background: #f0f0f0;
            padding: 2px 8px;
            border-radius: 4px;
            color: #666;
        }

        /* Dynamic Content Section */
        .w87eju-dynamic {
            padding: 80px 0;
            background: #fff;
        }

        /* Footer */
        .w87eju-footer {
            background: #1a1a1a;
            color: #fff;
            padding: 64px 0 32px;
        }

        .w87eju-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            margin-bottom: 48px;
        }

        .w87eju-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .w87eju-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .w87eju-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            flex: 2 1 600px;
            min-width: 0;
        }

        .w87eju-footer-col {
            flex: 1 1 150px;
            min-width: 0;
        }

        .w87eju-footer-col h5 {
            font-size: 16px;
            margin-bottom: 24px;
            color: #999;
        }

        .w87eju-footer-col a {
            display: block;
            color: #ccc;
            text-decoration: none;
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .w87eju-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 32px;
            text-align: center;
            font-size: 13px;
            color: #666;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .w87eju-menu {
                display: none; /* In a real scenario, use a hamburger menu */
            }
            .w87eju-hero h1 {
                font-size: 2rem;
            }
            .w87eju-guide-grid {
                grid-template-columns: 1fr;
            }
            .w87eju-matrix-item {
                flex: 1 1 100%;
            }
        }