:root {
            --h187-primary: #0078d4;
            --h187-secondary: #2b343b;
            --h187-accent: #00c2ff;
            --h187-diff-add: #e6ffed;
            --h187-diff-del: #ffeef0;
            --h187-text-dark: #1a1a1a;
            --h187-text-light: #666;
            --h187-bg-soft: #f8f9fa;
            --h187-white: #ffffff;
            --h187-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: var(--h187-text-dark);
            background-color: var(--h187-white);
            overflow-x: hidden;
        }

        /* 导航系统 */
        .h187-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 2px 20px rgba(0,0,0,0.03);
        }

        .h187-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 48px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .h187-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .h187-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .h187-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .h187-nav-item {
            min-width: 0;
        }

        .h187-nav-link {
            text-decoration: none;
            color: var(--h187-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--h187-transition);
            padding: 8px 4px;
            position: relative;
            word-break: keep-all;
        }

        .h187-nav-link:hover {
            color: var(--h187-primary);
        }

        .h187-nav-link.active {
            color: var(--h187-primary);
        }

        .h187-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--h187-primary);
        }

        /* Hero 视觉实验室 */
        .h187-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, #f0f7ff 0%, #ffffff 50%);
            overflow: hidden;
        }

        .h187-container-xl {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 48px;
        }

        .h187-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .h187-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .h187-hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--h187-secondary);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .h187-hero-subtitle {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
            color: var(--h187-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .h187-theme-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 120, 212, 0.1);
            color: var(--h187-primary);
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        /* 颜色展示板 */
        .h187-hero-visual {
            flex: 1;
            min-width: 400px;
            position: relative;
        }

        .h187-editor-mockup {
            background: #1e1e1e;
            border-radius: 16px;
            box-shadow: 0 32px 64px rgba(0,0,0,0.15);
            padding: 24px;
            position: relative;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .h187-code-line {
            height: 12px;
            margin-bottom: 12px;
            border-radius: 4px;
            display: flex;
            gap: 8px;
        }

        .h187-code-chunk { height: 100%; border-radius: 2px; }
        .h187-c1 { width: 20%; background: #569cd6; }
        .h187-c2 { width: 40%; background: #ce9178; }
        .h187-c3 { width: 15%; background: #b5cea8; }
        .h187-c4 { width: 25%; background: #dcdcaa; }

        .h187-diff-highlight {
            background: rgba(0, 194, 255, 0.2);
            border-left: 3px solid var(--h187-accent);
            padding: 8px 0;
            margin: 16px -24px;
            padding-left: 24px;
        }

        /* 核心能力网格 */
        .h187-section {
            padding: 96px 0;
            word-break: break-word;
        }

        .h187-section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            text-align: center;
            margin-bottom: 64px;
            color: var(--h187-secondary);
        }

        .h187-grid-capabilities {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
        }

        .h187-card {
            background: var(--h187-bg-soft);
            padding: 40px;
            border-radius: 20px;
            transition: var(--h187-transition);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
        }

        .h187-card:hover {
            transform: translateY(-8px);
            background: var(--h187-white);
            border-color: var(--h187-primary);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .h187-card-type {
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 20px;
            color: var(--h187-primary);
        }

        .h187-capability-list {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .h187-capability-item {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--h187-text-light);
        }

        .h187-capability-item::before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--h187-primary);
            font-weight: bold;
        }

        .h187-algorithmic-edge {
            padding: 16px;
            background: rgba(0, 120, 212, 0.05);
            border-radius: 12px;
            font-size: 0.9rem;
            font-style: italic;
            border-left: 4px solid var(--h187-primary);
        }

        /* 工作流场景 - 动态内容 */
        .h187-workflow-container {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 48px;
        }

        .h187-workflow-card {
            flex: 1;
            min-width: 300px;
            background: var(--h187-white);
            border: 1px solid #eee;
            padding: 32px;
            border-radius: 16px;
        }

        .h187-scenario-label {
            display: block;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        /* 页脚 */
        .h187-footer {
            background: var(--h187-secondary);
            color: #ccc;
            padding: 80px 0 40px;
        }

        .h187-footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 64px;
        }

        .h187-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .h187-footer-brand-name {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--h187-white);
            margin-bottom: 16px;
        }

        .h187-footer-links {
            flex: 2;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 24px;
        }

        .h187-footer-link-group h4 {
            color: var(--h187-white);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .h187-footer-link-group a {
            display: block;
            color: #999;
            text-decoration: none;
            margin-bottom: 12px;
            font-size: 0.9rem;
            transition: var(--h187-transition);
        }

        .h187-footer-link-group a:hover {
            color: var(--h187-accent);
        }

        .h187-footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 32px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .h187-nav-container { padding: 0 24px; }
            .h187-container-xl { padding: 0 24px; }
            .h187-hero { padding-top: 120px; }
        }

        @media (max-width: 768px) {
            .h187-nav-menu { display: none; } /* 移动端可根据需要添加汉堡菜单 */
            .h187-hero-visual { min-width: 100%; }
            .h187-grid-capabilities { grid-template-columns: 1fr; }
        }