:root {
            --hdsq1-primary: #1A73E8;
            --hdsq1-secondary: #EA4335;
            --hdsq1-tertiary: #FBBC05;
            --hdsq1-accent: #34A853;
            --hdsq1-text: #202124;
            --hdsq1-text-light: #5f6368;
            --hdsq1-bg: #ffffff;
            --hdsq1-bg-soft: #f8f9fa;
            --hdsq1-glass: rgba(255, 255, 255, 0.8);
            --hdsq1-shadow: 0 8px 32px rgba(0,0,0,0.08);
            --hdsq1-radius: 16px;
        }

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

        body {
            font-family: "Inter", "Segoe UI", "PingFang SC", sans-serif;
            color: var(--hdsq1-text);
            background-color: var(--hdsq1-bg);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局容器 */
        .hdsq1-wrapper {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .hdsq1-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: transparent;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .hdsq1-header.hdsq1-scrolled {
            background: var(--hdsq1-glass);
            backdrop-filter: blur(15px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            padding: 8px 0;
        }

        .hdsq1-nav-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            min-width: 0;
        }

        .hdsq1-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .hdsq1-logo img {
            height: 36px;
            width: auto;
            display: block;
        }

        .hdsq1-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .hdsq1-menu-item a {
            text-decoration: none;
            color: var(--hdsq1-text-light);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .hdsq1-menu-item a:hover,
        .hdsq1-menu-item.active a {
            color: var(--hdsq1-primary);
        }

        /* Hero 区 - 独特流体背景 */
        .hdsq1-hero {
            padding: 160px 0 80px;
            position: relative;
            background: radial-gradient(circle at 90% 10%, rgba(26, 115, 232, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(52, 168, 83, 0.05) 0%, transparent 40%);
            overflow: hidden;
        }

        .hdsq1-liquid-shape {
            position: absolute;
            z-index: -1;
            filter: blur(60px);
            opacity: 0.4;
        }

        .hdsq1-shape-1 {
            top: 10%; right: -5%;
            width: 400px; height: 400px;
            background: var(--hdsq1-tertiary);
            border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
        }

        .hdsq1-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .hdsq1-hero-content {
            flex: 1 1 500px;
            min-width: 0;
            word-break: break-word;
        }

        .hdsq1-hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--hdsq1-text);
        }

        .hdsq1-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--hdsq1-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        /* 内核检测卡片 */
        .hdsq1-version-card {
            flex: 1 1 400px;
            min-width: 0;
            background: #fff;
            padding: 48px;
            border-radius: 32px;
            box-shadow: 0 20px 80px rgba(0,0,0,0.06);
            border: 1px solid rgba(0,0,0,0.03);
            position: relative;
        }

        .hdsq1-version-display {
            text-align: center;
        }

        .hdsq1-v-label {
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--hdsq1-primary);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .hdsq1-v-number {
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 900;
            color: var(--hdsq1-text);
            margin-bottom: 8px;
            font-family: "Courier New", monospace;
        }

        .hdsq1-v-status {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: rgba(52, 168, 83, 0.1);
            color: var(--hdsq1-accent);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
        }

        /* 非对称功能区 */
        .hdsq1-features {
            padding: 96px 0;
            background-color: var(--hdsq1-bg-soft);
        }

        .hdsq1-section-tag {
            color: var(--hdsq1-secondary);
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 16px;
            display: block;
        }

        .hdsq1-grid-layout {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .hdsq1-feature-item {
            background: var(--hdsq1-bg);
            padding: 40px;
            border-radius: var(--hdsq1-radius);
            transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            min-width: 0;
            word-break: break-word;
        }

        .hdsq1-feature-item:hover {
            transform: translateY(-10px);
            box-shadow: var(--hdsq1-shadow);
        }

        .hdsq1-feature-icon {
            width: 48px;
            height: 48px;
            background: var(--hdsq1-bg-soft);
            border-radius: 12px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--hdsq1-primary);
        }

        .hdsq1-feature-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        /* 动态内容区块 */
        .hdsq1-news-section {
            padding: 96px 0;
        }

        .hdsq1-article-card {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            background: #fff;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.04);
            margin-bottom: 32px;
            min-width: 0;
        }

        .hdsq1-article-info {
            flex: 1 1 400px;
            padding: 40px;
            min-width: 0;
        }

        .hdsq1-btn {
            display: inline-block;
            padding: 16px 32px;
            background: var(--hdsq1-primary);
            color: #fff;
            text-decoration: none;
            border-radius: 100px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(26, 115, 232, 0.3);
        }

        .hdsq1-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(26, 115, 232, 0.4);
        }

        .hdsq1-btn-outline {
            background: transparent;
            border: 2px solid var(--hdsq1-primary);
            color: var(--hdsq1-primary);
            box-shadow: none;
            margin-left: 16px;
        }

        /* 页脚 */
        .hdsq1-footer {
            background: #1a1a1a;
            color: rgba(255,255,255,0.7);
            padding: 80px 0 40px;
        }

        .hdsq1-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 64px;
        }

        .hdsq1-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .hdsq1-footer-brand h2 {
            color: #fff;
            font-size: 24px;
            margin-bottom: 24px;
        }

        .hdsq1-footer-links {
            flex: 2 1 500px;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            min-width: 0;
        }

        .hdsq1-footer-col {
            flex: 1 1 150px;
            min-width: 0;
        }

        .hdsq1-footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 16px;
        }

        .hdsq1-footer-col ul {
            list-style: none;
        }

        .hdsq1-footer-col li {
            margin-bottom: 12px;
        }

        .hdsq1-footer-col a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

        .hdsq1-footer-col a:hover {
            color: var(--hdsq1-primary);
        }

        .hdsq1-copyright {
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 13px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hdsq1-menu {
                display: none; /* 简化移动端，实际项目中应有汉堡菜单 */
            }
            .hdsq1-hero-grid {
                flex-direction: column;
            }
            .hdsq1-hero-content, .hdsq1-version-card {
                flex: 1 1 100%;
            }
            .hdsq1-btn-outline {
                margin-left: 0;
                margin-top: 16px;
                display: block;
            }
        }