:root {
            --hdsq1-primary: #1A73E8;
            --hdsq1-secondary: #34A853;
            --hdsq1-tertiary: #FBBC05;
            --hdsq1-accent: #EA4335;
            --hdsq1-text-main: #202124;
            --hdsq1-text-sub: #5f6368;
            --hdsq1-bg-light: #ffffff;
            --hdsq1-bg-gray: #f8f9fa;
            --hdsq1-glass: rgba(255, 255, 255, 0.8);
            --hdsq1-spacing-unit: 8px;
            --hdsq1-container-max: 1300px;
        }

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

        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            color: var(--hdsq1-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            background-color: var(--hdsq1-bg-light);
        }

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

        .hdsq1-header.hdsq1-scrolled {
            background: var(--hdsq1-glass);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
            padding: 4px 0;
        }

        .hdsq1-nav-container {
            max-width: var(--hdsq1-container-max);
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

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

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

        .hdsq1-nav-menu a {
            text-decoration: none;
            color: var(--hdsq1-text-main);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            transition: color 0.3s;
            position: relative;
            padding: 8px 0;
            word-break: keep-all;
        }

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

        .hdsq1-nav-menu a.hdsq1-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hdsq1-primary);
            border-radius: 2px;
        }

        /* 英雄区：非对称流体设计 */
        .hdsq1-hero {
            padding: 160px 24px 80px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(circle at 90% 10%, rgba(26, 115, 232, 0.05) 0%, transparent 40%);
        }

        .hdsq1-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -5%;
            width: 50%;
            height: 80%;
            background: linear-gradient(135deg, rgba(52, 168, 83, 0.08) 0%, transparent 100%);
            border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
            z-index: -1;
            animation: hdsq1-blob 20s infinite alternate;
        }

        @keyframes hdsq1-blob {
            0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
            100% { border-radius: 60% 40% 30% 70% / 50% 60% 40% 60%; }
        }

        .hdsq1-hero-grid {
            max-width: var(--hdsq1-container-max);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 64px;
            align-items: center;
        }

        .hdsq1-hero-content {
            min-width: 0;
            word-break: break-word;
        }

        .hdsq1-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--hdsq1-text-main);
            letter-spacing: -1px;
        }

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

        /* 呼吸灯下载按钮 */
        .hdsq1-btn-download {
            display: inline-flex;
            align-items: center;
            padding: 18px 48px;
            background: var(--hdsq1-primary);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 18px;
            box-shadow: 0 10px 20px rgba(26, 115, 232, 0.3);
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            animation: hdsq1-breath 3s infinite ease-in-out;
        }

        @keyframes hdsq1-breath {
            0%, 100% { box-shadow: 0 10px 20px rgba(26, 115, 232, 0.3); transform: scale(1); }
            50% { box-shadow: 0 15px 35px rgba(26, 115, 232, 0.5); transform: scale(1.03); }
        }

        .hdsq1-btn-download:hover {
            transform: translateY(-5px);
            background: #1557b0;
        }

        /* 插件展示区 */
        .hdsq1-market-section {
            padding: 96px 24px;
            background-color: var(--hdsq1-bg-gray);
        }

        .hdsq1-section-inner {
            max-width: var(--hdsq1-container-max);
            margin: 0 auto;
        }

        .hdsq1-split-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: center;
            margin-bottom: 96px;
        }

        .hdsq1-split-image {
            flex: 1;
            min-width: 300px;
            position: relative;
        }

        .hdsq1-split-image img {
            width: 100%;
            height: auto;
            border-radius: 24px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.1);
            display: block;
        }

        .hdsq1-split-text {
            flex: 1;
            min-width: 300px;
            word-break: break-word;
        }

        .hdsq1-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 115, 232, 0.1);
            color: var(--hdsq1-primary);
            border-radius: 20px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .hdsq1-h2 {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 24px;
            line-height: 1.2;
        }

        /* 插件卡片网格 */
        .hdsq1-extension-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .hdsq1-ext-card {
            background: white;
            padding: 32px;
            border-radius: 20px;
            transition: all 0.4s ease;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            gap: 16px;
            cursor: pointer;
            min-width: 0;
        }

        .hdsq1-ext-card:hover {
            transform: translateY(-12px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border-color: var(--hdsq1-primary);
        }

        .hdsq1-ext-icon {
            font-size: 40px;
            width: 64px;
            height: 64px;
            background: var(--hdsq1-bg-gray);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hdsq1-ext-name {
            font-size: 20px;
            font-weight: 700;
        }

        .hdsq1-ext-desc {
            font-size: 15px;
            color: var(--hdsq1-text-sub);
            flex-grow: 1;
        }

        /* 开发者专区 */
        .hdsq1-dev-section {
            padding: 96px 24px;
            background: white;
            position: relative;
        }

        .hdsq1-dev-card {
            background: #202124;
            color: white;
            border-radius: 32px;
            padding: 64px;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
            overflow: hidden;
            position: relative;
        }

        .hdsq1-dev-card::after {
            content: '';
            position: absolute;
            right: -10%;
            bottom: -10%;
            width: 300px;
            height: 300px;
            background: var(--hdsq1-primary);
            filter: blur(100px);
            opacity: 0.2;
            z-index: 1;
        }

        .hdsq1-dev-content {
            flex: 1;
            min-width: 300px;
            z-index: 2;
        }

        .hdsq1-dev-image {
            flex: 1;
            min-width: 300px;
            z-index: 2;
        }

        .hdsq1-dev-image img {
            width: 100%;
            border-radius: 16px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        }

        /* 动态资讯区 */
        .hdsq1-section[data-dynamic-content="latest-articles"] {
            padding: 96px 24px;
            max-width: var(--hdsq1-container-max);
            margin: 0 auto;
        }

        .hdsq1-news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 24px;
        }

        .hdsq1-news-item {
            padding: 24px;
            border-bottom: 1px solid #eee;
            transition: background 0.3s;
        }

        .hdsq1-news-item:hover {
            background: var(--hdsq1-bg-gray);
        }

        /* 页脚 */
        .hdsq1-footer {
            background: var(--hdsq1-bg-gray);
            padding: 80px 24px 40px;
            border-top: 1px solid #eee;
        }

        .hdsq1-footer-grid {
            max-width: var(--hdsq1-container-max);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
        }

        .hdsq1-footer-brand h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--hdsq1-primary);
        }

        .hdsq1-footer-column h4 {
            margin-bottom: 24px;
            font-size: 16px;
            font-weight: 700;
        }

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

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

        .hdsq1-footer-links a {
            text-decoration: none;
            color: var(--hdsq1-text-sub);
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .hdsq1-copyright {
            max-width: var(--hdsq1-container-max);
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid #ddd;
            text-align: center;
            font-size: 13px;
            color: var(--hdsq1-text-sub);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hdsq1-nav-container {
                flex-direction: column;
                gap: 16px;
            }
            .hdsq1-nav-menu {
                justify-content: center;
                gap: 12px;
            }
            .hdsq1-hero {
                padding-top: 180px;
                text-align: center;
            }
            .hdsq1-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hdsq1-dev-card {
                padding: 32px;
            }
        }