:root {
            --hdsq1-primary: #1A73E8;
            --hdsq1-success: #34A853;
            --hdsq1-warning: #FBBC05;
            --hdsq1-danger: #EA4335;
            --hdsq1-accent: #1A73E8;
            --hdsq1-tertiary: #FBBC05;
            --hdsq1-text-main: #202124;
            --hdsq1-text-sub: #5f6368;
            --hdsq1-bg-light: #f8f9fa;
            --hdsq1-white: #ffffff;
            --hdsq1-container-width: 1300px;
            --hdsq1-radius: 16px;
            --hdsq1-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, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--hdsq1-bg-light);
            color: var(--hdsq1-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局通用规范 */
        .hdsq1-container {
            max-width: var(--hdsq1-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .hdsq1-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .hdsq1-flex-item {
            min-width: 0;
        }

        /* 导航栏设计 - 磨砂玻璃材质 */
        .hdsq1-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            transition: var(--hdsq1-transition);
            background: transparent;
        }

        .hdsq1-header.hdsq1-scrolled {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }

        .hdsq1-nav-inner {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .hdsq1-logo {
            flex-shrink: 0;
        }

        .hdsq1-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .hdsq1-nav-menu {
            display: flex;
            list-style: none;
            gap: 8px;
        }

        .hdsq1-nav-link {
            text-decoration: none;
            color: var(--hdsq1-text-main);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 50px;
            transition: var(--hdsq1-transition);
            white-space: nowrap;
        }

        .hdsq1-nav-link:hover {
            background: rgba(26, 115, 232, 0.08);
            color: var(--hdsq1-primary);
        }

        .hdsq1-nav-link.active {
            background: var(--hdsq1-primary);
            color: var(--hdsq1-white);
        }

        /* Hero 区 - 对角线分割与流体形状 */
        .hdsq1-hero {
            position: relative;
            padding: 180px 0 120px;
            background: radial-gradient(circle at 10% 20%, rgba(26, 115, 232, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
            overflow: hidden;
        }

        .hdsq1-liquid-shape {
            position: absolute;
            z-index: -1;
            filter: blur(60px);
            opacity: 0.4;
            animation: hdsq1-float 20s infinite alternate;
        }

        .hdsq1-shape-1 {
            width: 500px;
            height: 500px;
            background: var(--hdsq1-primary);
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            top: -100px;
            right: -100px;
        }

        .hdsq1-shape-2 {
            width: 400px;
            height: 400px;
            background: var(--hdsq1-tertiary);
            border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
            bottom: -50px;
            left: -100px;
        }

        @keyframes hdsq1-float {
            0% { transform: translate(0, 0) rotate(0deg); }
            100% { transform: translate(50px, 100px) rotate(20deg); }
        }

        .hdsq1-hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hdsq1-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            letter-spacing: -1px;
            word-break: break-word;
        }

        .hdsq1-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--hdsq1-text-sub);
            margin-bottom: 48px;
            word-break: break-word;
        }

        .hdsq1-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
        }

        .hdsq1-btn {
            display: inline-flex;
            align-items: center;
            padding: 18px 40px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--hdsq1-transition);
            cursor: pointer;
        }

        .hdsq1-btn-primary {
            background: var(--hdsq1-primary);
            color: var(--hdsq1-white);
            box-shadow: 0 10px 30px rgba(26, 115, 232, 0.3);
            animation: hdsq1-breath 3s infinite ease-in-out;
        }

        @keyframes hdsq1-breath {
            0%, 100% { box-shadow: 0 10px 30px rgba(26, 115, 232, 0.3); transform: scale(1); }
            50% { box-shadow: 0 15px 45px rgba(26, 115, 232, 0.5); transform: scale(1.02); }
        }

        .hdsq1-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 45px rgba(26, 115, 232, 0.4);
        }

        /* 非对称栅格同步指南区 */
        .hdsq1-sync-section {
            padding: 96px 0;
            background: var(--hdsq1-white);
        }

        .hdsq1-asymmetric-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 64px;
            align-items: center;
        }

        .hdsq1-sync-visual {
            position: relative;
            background: #f1f3f4;
            border-radius: 24px;
            padding: 48px;
            min-height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hdsq1-sync-card {
            background: var(--hdsq1-white);
            padding: 32px;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            width: 100%;
            max-width: 450px;
            position: relative;
            z-index: 2;
        }

        .hdsq1-sync-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid #eee;
        }

        .hdsq1-sync-icon-box {
            width: 48px;
            height: 48px;
            background: rgba(26, 115, 232, 0.1);
            color: var(--hdsq1-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }

        .hdsq1-sync-text h3 {
            font-size: 18px;
            margin-bottom: 4px;
        }

        .hdsq1-sync-text p {
            font-size: 14px;
            color: var(--hdsq1-text-sub);
        }

        /* 动态更新区块标记 */
        .hdsq1-dynamic-section {
            padding: 96px 0;
            background: #fafafa;
        }

        .hdsq1-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .hdsq1-section-title h2 {
            font-size: clamp(2rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }

        .hdsq1-article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
        }

        .hdsq1-article-card {
            background: var(--hdsq1-white);
            border-radius: var(--hdsq1-radius);
            overflow: hidden;
            border: 1px solid #eee;
            transition: var(--hdsq1-transition);
        }

        .hdsq1-article-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .hdsq1-article-info {
            padding: 32px;
        }

        .hdsq1-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(52, 168, 83, 0.1);
            color: var(--hdsq1-success);
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .hdsq1-article-info h4 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        /* 页脚设计 */
        .hdsq1-footer {
            background: #1a1b1e;
            color: rgba(255, 255, 255, 0.7);
            padding: 96px 0 48px;
        }

        .hdsq1-footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 48px;
            margin-bottom: 64px;
        }

        .hdsq1-footer-brand h2 {
            color: var(--hdsq1-white);
            font-size: 24px;
            margin-bottom: 24px;
        }

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

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

        .hdsq1-footer-list a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: var(--hdsq1-transition);
        }

        .hdsq1-footer-list a:hover {
            color: var(--hdsq1-white);
        }

        .hdsq1-copyright {
            padding-top: 48px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 14px;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hdsq1-asymmetric-grid {
                grid-template-columns: 1fr;
            }
            .hdsq1-nav-menu {
                display: none; /* 简化演示：移动端隐藏菜单 */
            }
            .hdsq1-footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .hdsq1-hero {
                padding: 140px 0 80px;
            }
            .hdsq1-footer-grid {
                grid-template-columns: 1fr;
            }
            .hdsq1-article-grid {
                grid-template-columns: 1fr;
            }
            .hdsq1-btn-group {
                flex-direction: column;
            }
        }