:root {
            --h187-primary: #005bb7;
            --h187-secondary: #00a0e9;
            --h187-accent: #f39c12;
            --h187-text: #2c3e50;
            --h187-text-light: #7f8c8d;
            --h187-bg: #f9fbfc;
            --h187-white: #ffffff;
            --h187-border: #e1e8ed;
            --h187-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            --h187-radius: 16px;
        }

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

        body {
            font-family: 'Segoe UI', "Microsoft YaHei", sans-serif;
            color: var(--h187-text);
            background-color: var(--h187-bg);
            line-height: 1.7;
            word-break: keep-all;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        /* 布局容器 */
        .h187-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .h187-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--h187-border);
            padding: 16px 0;
        }

        .h187-nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

        .h187-logo img {
            height: 48px;
            width: auto;
            display: block;
        }

        .h187-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .h187-nav-item a {
            padding: 8px 16px;
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            display: block;
            white-space: nowrap;
        }

        .h187-nav-item a:hover {
            color: var(--h187-primary);
            background: rgba(0, 91, 183, 0.05);
        }

        .h187-nav-item.active a {
            background: var(--h187-primary);
            color: var(--h187-white);
        }

        /* Hero 区块 - 独特非对称布局 */
        .h187-hero {
            padding: 96px 0;
            background: linear-gradient(135deg, #fff 0%, #f0f7ff 100%);
            position: relative;
            overflow: hidden;
        }

        .h187-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

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

        .h187-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--h187-primary);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .h187-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--h187-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .h187-hero-visual {
            flex: 1.2;
            min-width: 320px;
            position: relative;
        }

        .h187-hero-visual img {
            width: 100%;
            height: auto;
            border-radius: var(--h187-radius);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
            transform: perspective(1000px) rotateY(-5deg);
            transition: transform 0.5s ease;
        }

        .h187-hero-visual img:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        /* 核心对比模式 - Grid布局 */
        .h187-section {
            padding: 96px 0;
        }

        .h187-section-head {
            text-align: center;
            margin-bottom: 64px;
        }

        .h187-section-title {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }

        .h187-modes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .h187-mode-card {
            background: var(--h187-white);
            padding: 40px;
            border-radius: var(--h187-radius);
            border: 1px solid var(--h187-border);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .h187-mode-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--h187-shadow);
            border-color: var(--h187-primary);
        }

        .h187-mode-type {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--h187-primary);
            margin-bottom: 20px;
            border-left: 4px solid var(--h187-primary);
            padding-left: 15px;
        }

        .h187-mode-list {
            list-style: none;
            flex-grow: 1;
        }

        .h187-mode-list li {
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--h187-text-light);
            padding-left: 20px;
            position: relative;
        }

        .h187-mode-list li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--h187-primary);
            font-weight: bold;
        }

        .h187-mode-edge {
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px dashed var(--h187-border);
            font-size: 0.9rem;
            font-style: italic;
            color: var(--h187-accent);
        }

        /* 引擎与技术展示 - 左右错位布局 */
        .h187-tech-showcase {
            background: #2c3e50;
            color: var(--h187-white);
            border-radius: 32px;
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        .h187-tech-image {
            flex: 1;
            min-width: 320px;
            line-height: 0;
        }

        .h187-tech-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 400px;
        }

        .h187-tech-info {
            flex: 1;
            min-width: 320px;
            padding: 64px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* 工作流同步 - 动态内容标记 */
        .h187-workflow-section {
            background-color: var(--h187-white);
        }

        .h187-workflow-item {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
            margin-bottom: 80px;
        }

        .h187-workflow-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .h187-workflow-media {
            flex: 1;
            min-width: 320px;
        }

        .h187-workflow-media img {
            width: 100%;
            border-radius: var(--h187-radius);
            box-shadow: var(--h187-shadow);
        }

        .h187-workflow-text {
            flex: 1;
            min-width: 320px;
        }

        .h187-workflow-scenario {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--h187-secondary);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .h187-workflow-app {
            font-size: 1.5rem;
            font-weight: 600;
            line-height: 1.4;
        }

        /* 底部 */
        .h187-footer {
            background: #f1f4f8;
            padding: 80px 0 40px;
            border-top: 1px solid var(--h187-border);
        }

        .h187-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .h187-footer-brand h2 {
            font-size: 1.8rem;
            color: var(--h187-primary);
            margin-bottom: 16px;
        }

        .h187-footer-links h3 {
            font-size: 1.1rem;
            margin-bottom: 24px;
        }

        .h187-footer-links ul {
            list-style: none;
        }

        .h187-footer-links li {
            margin-bottom: 12px;
        }

        .h187-footer-bottom {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid var(--h187-border);
            color: var(--h187-text-light);
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .h187-nav-wrapper {
                flex-direction: column;
                gap: 16px;
            }
            .h187-nav-menu {
                justify-content: center;
            }
            .h187-tech-info {
                padding: 32px;
            }
            .h187-hero {
                padding: 48px 0;
            }
        }