:root {
            --w87eju-primary: #EE4D2D;
            --w87eju-primary-dark: #D43F21;
            --w87eju-bg: #F8F9FA;
            --w87eju-text: #2D3436;
            --w87eju-text-light: #636E72;
            --w87eju-white: #FFFFFF;
            --w87eju-accent: #0984E3;
            --w87eju-card-shadow: 0 10px 30px rgba(0,0,0,0.05);
            --w87eju-radius: 16px;
            --w87eju-container-width: 1100px;
        }

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

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

        /* 导航栏 */
        .w87eju-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 80px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(15px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
        }

        .w87eju-nav-container {
            max-width: var(--w87eju-container-width);
            margin: 0 auto;
            width: 100%;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

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

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

        .w87eju-menu li {
            margin-left: 24px;
            min-width: 0;
        }

        .w87eju-menu a {
            text-decoration: none;
            color: var(--w87eju-text);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            padding: 8px 0;
            position: relative;
        }

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

        .w87eju-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--w87eju-primary);
            border-radius: 2px;
        }

        /* Hero 区块 */
        .w87eju-hero {
            padding: 160px 0 96px;
            background: linear-gradient(135deg, #FFF5F3 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }

        .w87eju-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(238, 77, 45, 0.05) 0%, transparent 70%);
            z-index: 0;
        }

        .w87eju-hero-inner {
            max-width: var(--w87eju-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .w87eju-hero-content {
            flex: 1;
            min-width: 320px;
            padding-right: 48px;
        }

        .w87eju-hero-tag {
            display: inline-block;
            background: rgba(238, 77, 45, 0.1);
            color: var(--w87eju-primary);
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .w87eju-hero h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--w87eju-text);
            font-weight: 800;
        }

        .w87eju-hero p {
            font-size: clamp(1rem, 1vw + 0.5rem, 1.25rem);
            color: var(--w87eju-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .w87eju-hero-visual {
            flex: 1;
            min-width: 320px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* 模拟键盘视觉件 */
        .w87eju-keyboard-demo {
            width: 100%;
            max-width: 500px;
            background: #2D3436;
            padding: 24px;
            border-radius: 24px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.2);
            transform: perspective(1000px) rotateX(10deg) rotateY(-10deg);
            transition: transform 0.5s ease;
        }

        .w87eju-keyboard-demo:hover {
            transform: perspective(1000px) rotateX(5deg) rotateY(-5deg);
        }

        .w87eju-key-row {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: nowrap;
        }

        .w87eju-key {
            background: #4A4A4A;
            height: 40px;
            flex: 1;
            border-radius: 6px;
            border-bottom: 3px solid #1A1A1A;
        }

        .w87eju-key.active {
            background: var(--w87eju-primary);
            border-bottom: 3px solid var(--w87eju-primary-dark);
            box-shadow: 0 0 15px rgba(238, 77, 45, 0.5);
        }

        /* 生产力矩阵区 */
        .w87eju-matrix {
            padding: 96px 0;
            background: var(--w87eju-white);
        }

        .w87eju-section-title {
            text-align: center;
            margin-bottom: 64px;
            padding: 0 24px;
        }

        .w87eju-section-title h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }

        .w87eju-section-title .w87eju-divider {
            width: 60px;
            height: 4px;
            background: var(--w87eju-primary);
            margin: 0 auto;
            border-radius: 2px;
        }

        .w87eju-matrix-grid {
            max-width: var(--w87eju-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            padding: 0 24px;
        }

        .w87eju-matrix-card {
            background: var(--w87eju-bg);
            padding: 48px 32px;
            border-radius: var(--w87eju-radius);
            transition: all 0.4s ease;
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .w87eju-matrix-card:hover {
            transform: translateY(-10px);
            background: var(--w87eju-white);
            box-shadow: var(--w87eju-card-shadow);
            border-color: rgba(238, 77, 45, 0.1);
        }

        .w87eju-matrix-icon {
            width: 64px;
            height: 64px;
            background: var(--w87eju-white);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 24px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

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

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

        .w87eju-matrix-card li {
            padding: 4px 0;
            color: var(--w87eju-text-light);
            font-size: 15px;
            display: flex;
            align-items: center;
        }

        .w87eju-matrix-card li::before {
            content: '•';
            color: var(--w87eju-primary);
            font-weight: bold;
            margin-right: 8px;
        }

        .w87eju-usecase {
            background: rgba(0,0,0,0.03);
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--w87eju-text-light);
            border-left: 3px solid var(--w87eju-accent);
        }

        /* 快捷键设置面板 */
        .w87eju-shortcut-settings {
            padding: 96px 0;
            background: var(--w87eju-bg);
        }

        .w87eju-settings-panel {
            max-width: var(--w87eju-container-width);
            margin: 0 auto;
            background: var(--w87eju-white);
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--w87eju-card-shadow);
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        .w87eju-settings-sidebar {
            flex: 0 0 280px;
            background: #F1F3F5;
            padding: 32px;
            min-width: 0;
        }

        .w87eju-settings-nav {
            list-style: none;
        }

        .w87eju-settings-nav li {
            margin-bottom: 8px;
        }

        .w87eju-settings-nav a {
            display: block;
            padding: 12px 20px;
            border-radius: 12px;
            text-decoration: none;
            color: var(--w87eju-text);
            font-weight: 500;
            transition: all 0.3s;
        }

        .w87eju-settings-nav a.active, .w87eju-settings-nav a:hover {
            background: var(--w87eju-white);
            color: var(--w87eju-primary);
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .w87eju-settings-content {
            flex: 1;
            padding: 48px;
            min-width: 320px;
        }

        .w87eju-shortcut-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            border-bottom: 1px solid #F1F3F5;
            flex-wrap: wrap;
            gap: 16px;
            min-width: 0;
        }

        .w87eju-shortcut-item:last-child {
            border-bottom: none;
        }

        .w87eju-shortcut-info h4 {
            font-size: 18px;
            margin-bottom: 4px;
        }

        .w87eju-shortcut-info p {
            color: var(--w87eju-text-light);
            font-size: 14px;
        }

        .w87eju-shortcut-key-display {
            background: #F1F3F5;
            padding: 8px 16px;
            border-radius: 8px;
            font-family: monospace;
            font-weight: bold;
            color: var(--w87eju-primary);
            border: 1px solid rgba(0,0,0,0.05);
        }

        /* 底部动态区 */
        .w87eju-dynamic-news {
            padding: 96px 0;
            background: var(--w87eju-white);
        }

        .w87eju-news-grid {
            max-width: var(--w87eju-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            padding: 0 24px;
        }

        .w87eju-news-item {
            display: block;
            text-decoration: none;
            color: inherit;
            group: hover;
        }

        .w87eju-news-thumb {
            width: 100%;
            height: 180px;
            background: #EEE;
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            position: relative;
        }

        .w87eju-news-thumb-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(transparent, rgba(0,0,0,0.4));
        }

        .w87eju-news-item h5 {
            font-size: 18px;
            margin-bottom: 8px;
            transition: color 0.3s;
        }

        .w87eju-news-item:hover h5 {
            color: var(--w87eju-primary);
        }

        /* 页脚 */
        .w87eju-footer {
            background: #2D3436;
            color: #DFE6E9;
            padding: 80px 0 40px;
        }

        .w87eju-footer-inner {
            max-width: var(--w87eju-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
        }

        .w87eju-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .w87eju-footer-brand h2 {
            color: var(--w87eju-white);
            margin-bottom: 24px;
            font-size: 24px;
        }

        .w87eju-footer-links {
            flex: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            min-width: 300px;
        }

        .w87eju-footer-group h6 {
            color: var(--w87eju-white);
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

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

        .w87eju-footer-group a {
            color: #B2BEC3;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .w87eju-footer-bottom {
            max-width: var(--w87eju-container-width);
            margin: 48px auto 0;
            padding: 24px 24px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 13px;
            color: #636E72;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .w87eju-header {
                height: auto;
                padding: 16px 0;
            }
            .w87eju-nav-container {
                flex-direction: column;
                gap: 16px;
            }
            .w87eju-menu {
                justify-content: center;
                gap: 12px;
            }
            .w87eju-menu li {
                margin-left: 0;
            }
            .w87eju-hero {
                padding: 120px 0 64px;
                text-align: center;
            }
            .w87eju-hero-content {
                padding-right: 0;
                margin-bottom: 48px;
            }
            .w87eju-settings-sidebar {
                flex: 1 1 100%;
            }
            .w87eju-settings-content {
                padding: 32px 24px;
            }
        }