:root {
            --w87eju-primary: #ff6600;
            --w87eju-primary-dark: #e65c00;
            --w87eju-secondary: #2c3e50;
            --w87eju-bg-light: #f8fafc;
            --w87eju-text-main: #1a1a1a;
            --w87eju-text-muted: #64748b;
            --w87eju-white: #ffffff;
            --w87eju-gradient: linear-gradient(135deg, #ff8c42 0%, #ff6600 100%);
            --w87eju-shadow: 0 10px 30px rgba(255, 102, 0, 0.1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--w87eju-bg-light);
            color: var(--w87eju-text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* 导航栏 */
        .w87eju-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 2px 20px rgba(0,0,0,0.02);
        }

        .w87eju-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            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-main);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            word-break: keep-all;
        }

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

        /* Hero 区块 - 独特对角线视觉 */
        .w87eju-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, rgba(255, 102, 0, 0.05), transparent);
            position: relative;
            overflow: hidden;
        }

        .w87eju-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
            min-width: 0;
        }

        .w87eju-hero-text {
            flex: 1;
            min-width: 300px;
            word-break: break-word;
        }

        .w87eju-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 102, 0, 0.1);
            color: var(--w87eju-primary);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .w87eju-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--w87eju-secondary);
            word-break: keep-all;
        }

        .w87eju-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--w87eju-text-muted);
            margin-bottom: 48px;
            max-width: 600px;
            line-height: 1.8;
        }

        .w87eju-hero-visual {
            flex: 1;
            min-width: 300px;
            display: flex;
            justify-content: center;
            position: relative;
        }

        /* 模拟语音波纹视觉 */
        .w87eju-voice-wave {
            width: 300px;
            height: 300px;
            background: var(--w87eju-gradient);
            border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            animation: w87eju-morph 8s ease-in-out infinite;
            box-shadow: 0 20px 50px rgba(255, 102, 0, 0.3);
        }

        @keyframes w87eju-morph {
            0% { border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%; }
            50% { border-radius: 50% 50% 33% 67% / 63% 31% 69% 37%; }
            100% { border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%; }
        }

        .w87eju-voice-icon {
            font-size: 80px;
            color: white;
            filter: drop-shadow(0 4px 10px rgba(0,0,0,0.1));
        }

        /* 下载按钮组 */
        .w87eju-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            min-width: 0;
        }

        .w87eju-btn {
            padding: 18px 40px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: transform 0.3s, box-shadow 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 200px;
        }

        .w87eju-btn-primary {
            background: var(--w87eju-gradient);
            color: white;
            box-shadow: 0 10px 25px rgba(255, 102, 0, 0.3);
        }

        .w87eju-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(255, 102, 0, 0.4);
        }

        .w87eju-btn-outline {
            background: transparent;
            border: 2px solid var(--w87eju-secondary);
            color: var(--w87eju-secondary);
        }

        .w87eju-btn-outline:hover {
            background: var(--w87eju-secondary);
            color: white;
            transform: translateY(-3px);
        }

        /* 核心矩阵区块 */
        .w87eju-features {
            padding: 96px 0;
            background: var(--w87eju-white);
        }

        .w87eju-section-header {
            text-align: center;
            margin-bottom: 64px;
            word-break: break-word;
        }

        .w87eju-section-header h2 {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 16px;
            color: var(--w87eju-secondary);
        }

        .w87eju-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .w87eju-card {
            background: var(--w87eju-bg-light);
            padding: 48px;
            border-radius: 24px;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            border: 1px solid rgba(0,0,0,0.03);
            min-width: 0;
            word-break: break-word;
        }

        .w87eju-card:hover {
            transform: translateY(-10px);
            background: var(--w87eju-white);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            border-color: var(--w87eju-primary);
        }

        .w87eju-card-icon {
            width: 64px;
            height: 64px;
            background: var(--w87eju-white);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            margin-bottom: 24px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }

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

        .w87eju-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
            min-width: 0;
        }

        .w87eju-tag {
            font-size: 12px;
            padding: 4px 10px;
            background: rgba(0,0,0,0.05);
            border-radius: 4px;
            color: var(--w87eju-text-muted);
        }

        .w87eju-card p {
            color: var(--w87eju-text-muted);
            font-size: 15px;
            line-height: 1.7;
        }

        /* 底部动态区块 */
        .w87eju-dynamic-news {
            padding: 96px 0;
            background: #1a1a1a;
            color: white;
        }

        .w87eju-dynamic-news .w87eju-section-header h2 {
            color: white;
        }

        /* 页脚 */
        .w87eju-footer {
            padding: 64px 0 32px;
            background: var(--w87eju-white);
            border-top: 1px solid rgba(0,0,0,0.05);
        }

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

        .w87eju-footer-brand {
            flex: 1;
            min-width: 260px;
        }

        .w87eju-footer-brand h4 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--w87eju-primary);
        }

        .w87eju-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            min-width: 0;
        }

        .w87eju-footer-column {
            min-width: 120px;
        }

        .w87eju-footer-column h5 {
            margin-bottom: 24px;
            font-size: 16px;
        }

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

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

        .w87eju-footer-column a {
            text-decoration: none;
            color: var(--w87eju-text-muted);
            transition: color 0.3s;
            font-size: 14px;
        }

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

        .w87eju-copyright {
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid rgba(0,0,0,0.05);
            font-size: 13px;
            color: var(--w87eju-text-muted);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .w87eju-nav-wrapper {
                height: auto;
                padding: 16px 0;
                flex-direction: column;
                gap: 16px;
            }
            .w87eju-menu {
                justify-content: center;
                gap: 12px;
            }
            .w87eju-hero {
                padding-top: 140px;
                text-align: center;
            }
            .w87eju-hero-content {
                flex-direction: column;
            }
            .w87eju-btn-group {
                justify-content: center;
            }
            .w87eju-hero-visual {
                order: -1;
            }
            .w87eju-voice-wave {
                width: 220px;
                height: 220px;
            }
        }