:root {
            --w87eju-primary: #ff6600;
            --w87eju-primary-rgb: 255, 102, 0;
            --w87eju-secondary: #4a90e2;
            --w87eju-text: #1d1d1f;
            --w87eju-text-light: #86868b;
            --w87eju-bg: #ffffff;
            --w87eju-bg-soft: #f5f5f7;
            --w87eju-accent: #f0f0f5;
            --w87eju-radius: 20px;
            --w87eju-container: 1300px;
            --w87eju-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Myriad Set Pro", "SF Pro Icons", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
            color: var(--w87eju-text);
            background-color: var(--w87eju-bg);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航栏设计：悬浮式毛玻璃 */
        .w87eju-nav-wrapper {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
        }

        .w87eju-nav-container {
            max-width: 1100px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 50px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 8px 24px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
        }

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

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

        .w87eju-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 4px;
            min-width: 0;
        }

        .w87eju-menu-item a {
            text-decoration: none;
            color: var(--w87eju-text);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--w87eju-transition);
            white-space: nowrap;
        }

        .w87eju-menu-item a:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        .w87eju-menu-item a.active {
            background: var(--w87eju-primary);
            color: #fff;
        }

        /* Hero 区：对角线分割设计 */
        .w87eju-hero {
            position: relative;
            padding: 160px 24px 100px;
            background: radial-gradient(circle at top right, rgba(255, 102, 0, 0.05), transparent),
                        radial-gradient(circle at bottom left, rgba(74, 144, 226, 0.05), transparent);
            overflow: hidden;
        }

        .w87eju-hero-inner {
            max-width: var(--w87eju-container);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .w87eju-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .w87eju-hero-badge {
            display: inline-block;
            background: rgba(255, 102, 0, 0.1);
            color: var(--w87eju-primary);
            padding: 6px 16px;
            border-radius: 100px;
            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;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .w87eju-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--w87eju-text-light);
            margin-bottom: 48px;
            max-width: 600px;
        }

        .w87eju-download-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            min-width: 0;
        }

        .w87eju-btn-primary {
            display: inline-flex;
            align-items: center;
            background: var(--w87eju-primary);
            color: #fff;
            padding: 18px 42px;
            border-radius: 100px;
            font-size: 18px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--w87eju-transition);
            box-shadow: 0 10px 30px rgba(255, 102, 0, 0.3);
        }

        .w87eju-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(255, 102, 0, 0.4);
        }

        .w87eju-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .w87eju-glass-card {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--w87eju-radius);
            padding: 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.05);
            transition: var(--w87eju-transition);
        }

        .w87eju-glass-card:hover {
            transform: scale(1.02);
        }

        /* 矩阵展示区：Bento Grid 布局 */
        .w87eju-section-matrix {
            padding: 96px 24px;
            background: var(--w87eju-bg-soft);
        }

        .w87eju-container-inner {
            max-width: var(--w87eju-container);
            margin: 0 auto;
        }

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

        .w87eju-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            margin-bottom: 16px;
            word-break: keep-all;
        }

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

        .w87eju-matrix-card {
            background: #fff;
            border-radius: var(--w87eju-radius);
            padding: 48px;
            transition: var(--w87eju-transition);
            border: 1px solid rgba(0,0,0,0.03);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .w87eju-matrix-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
        }

        .w87eju-matrix-icon {
            width: 64px;
            height: 64px;
            background: var(--w87eju-accent);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 32px;
            color: var(--w87eju-primary);
        }

        .w87eju-matrix-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .w87eju-matrix-capacities {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .w87eju-matrix-capacities li {
            padding: 8px 0;
            color: var(--w87eju-text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .w87eju-matrix-capacities li::before {
            content: "✓";
            color: var(--w87eju-primary);
            font-weight: bold;
        }

        .w87eju-matrix-usecase {
            font-size: 14px;
            color: var(--w87eju-primary);
            background: rgba(255, 102, 0, 0.05);
            padding: 12px 20px;
            border-radius: 12px;
            border-left: 4px solid var(--w87eju-primary);
        }

        /* 动态内容区块 */
        .w87eju-section-dynamic {
            padding: 96px 24px;
            background: #fff;
        }

        .w87eju-news-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .w87eju-news-item {
            flex: 1;
            min-width: 280px;
            padding: 24px;
            border-radius: 16px;
            border: 1px solid var(--w87eju-accent);
            text-decoration: none;
            color: inherit;
            transition: var(--w87eju-transition);
        }

        .w87eju-news-item:hover {
            border-color: var(--w87eju-primary);
            background: rgba(255, 102, 0, 0.02);
        }

        /* 页脚设计 */
        .w87eju-footer {
            background: #1d1d1f;
            color: #fff;
            padding: 80px 24px 40px;
        }

        .w87eju-footer-content {
            max-width: var(--w87eju-container);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 48px;
            margin-bottom: 32px;
        }

        .w87eju-footer-brand {
            flex: 2;
            min-width: 260px;
        }

        .w87eju-footer-brand-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .w87eju-footer-links {
            flex: 3;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 32px;
        }

        .w87eju-footer-group h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 16px;
        }

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

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

        .w87eju-footer-group a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .w87eju-footer-bottom {
            max-width: var(--w87eju-container);
            margin: 0 auto;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 12px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .w87eju-nav-wrapper {
                top: 0;
                padding: 0;
            }
            .w87eju-nav-container {
                border-radius: 0;
                padding: 12px 16px;
            }
            .w87eju-menu {
                display: none; /* 简易移动端处理，实际项目应使用汉堡菜单 */
            }
            .w87eju-hero {
                padding-top: 100px;
                text-align: center;
            }
            .w87eju-hero-inner {
                gap: 32px;
            }
            .w87eju-download-group {
                justify-content: center;
            }
            .w87eju-matrix-card {
                padding: 32px;
            }
        }