:root {
            --gtmamk-primary: #ff4d4f;
            --gtmamk-secondary: #1a1a1a;
            --gtmamk-accent: #ff851b;
            --gtmamk-bg: #ffffff;
            --gtmamk-text: #333333;
            --gtmamk-light-gray: #f5f5f7;
            --gtmamk-glass: rgba(255, 255, 255, 0.8);
            --gtmamk-spacing-unit: 8px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: var(--gtmamk-text);
            background-color: var(--gtmamk-bg);
            overflow-x: hidden;
        }

        /* 导航栏 */
        .gtmamk-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: var(--gtmamk-glass);
            backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .gtmamk-nav-container {
            width: 90vw;
            max-width: 1100px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

        .gtmamk-logo img {
            height: 32px;
            display: block;
        }

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

        .gtmamk-nav-links a {
            text-decoration: none;
            color: var(--gtmamk-text);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .gtmamk-nav-links a:hover {
            color: var(--gtmamk-primary);
        }

        /* Hero 区块 - 独特非对称布局 */
        .gtmamk-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 77, 79, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
            display: flex;
            justify-content: center;
            position: relative;
        }

        .gtmamk-hero::before {
            content: "2024";
            position: absolute;
            right: 5%;
            top: 100px;
            font-size: 20vw;
            font-weight: 900;
            color: rgba(0,0,0,0.02);
            z-index: -1;
            line-height: 1;
        }

        .gtmamk-hero-content {
            width: 90vw;
            max-width: 1100px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            min-width: 0;
        }

        .gtmamk-badge {
            background: var(--gtmamk-primary);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .gtmamk-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            color: var(--gtmamk-secondary);
            margin-bottom: 24px;
            word-break: keep-all;
            max-width: 800px;
        }

        .gtmamk-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.5rem);
            color: #666;
            max-width: 600px;
            margin-bottom: 48px;
            word-break: break-word;
        }

        .gtmamk-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            min-width: 0;
        }

        .gtmamk-btn {
            padding: 16px 32px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            text-align: center;
        }

        .gtmamk-btn-primary {
            background: var(--gtmamk-primary);
            color: white;
            box-shadow: 0 10px 20px rgba(255, 77, 79, 0.2);
        }

        .gtmamk-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(255, 77, 79, 0.3);
        }

        /* 核心评测数据区块 */
        .gtmamk-review-section {
            padding: 96px 0;
            background: var(--gtmamk-light-gray);
            display: flex;
            justify-content: center;
        }

        .gtmamk-container {
            width: 90vw;
            max-width: 1100px;
            min-width: 0;
        }

        .gtmamk-section-header {
            margin-bottom: 64px;
            text-align: center;
        }

        .gtmamk-section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        /* 专业领域词库 - Grid 布局 */
        .gtmamk-lexicon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .gtmamk-lexicon-card {
            background: white;
            padding: 40px;
            border-radius: 24px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
            border: 1px solid rgba(0,0,0,0.03);
        }

        .gtmamk-lexicon-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .gtmamk-industry-tag {
            font-size: 14px;
            font-weight: 700;
            color: var(--gtmamk-primary);
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }

        .gtmamk-lexicon-depth {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--gtmamk-secondary);
        }

        .gtmamk-sample-terms {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 24px 0;
            min-width: 0;
        }

        .gtmamk-term-chip {
            background: var(--gtmamk-light-gray);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 13px;
            color: #555;
            word-break: keep-all;
        }

        .gtmamk-advantage {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px dashed #eee;
            font-size: 14px;
            color: #666;
            line-height: 1.5;
        }

        /* 动态内容区块 */
        .gtmamk-dynamic-section {
            padding: 96px 0;
            display: flex;
            justify-content: center;
            background: white;
        }

        .gtmamk-article-item {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-bottom: 48px;
            align-items: center;
            min-width: 0;
        }

        .gtmamk-article-visual {
            flex: 1;
            min-width: 300px;
            height: 300px;
            background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 80px;
            color: white;
            text-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }

        .gtmamk-article-text {
            flex: 1;
            min-width: 300px;
            word-break: break-word;
        }

        /* 底部 */
        .gtmamk-footer {
            background: var(--gtmamk-secondary);
            color: white;
            padding: 80px 0 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .gtmamk-footer-content {
            width: 90vw;
            max-width: 1100px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .gtmamk-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: white;
        }

        .gtmamk-footer-brand p {
            font-size: 14px;
            color: #999;
            max-width: 280px;
        }

        .gtmamk-footer-links h4 {
            font-size: 16px;
            margin-bottom: 24px;
            color: white;
        }

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

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

        .gtmamk-footer-links a {
            color: #999;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .gtmamk-copyright {
            width: 90vw;
            max-width: 1100px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.05);
            text-align: center;
            font-size: 13px;
            color: #666;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .gtmamk-nav-links {
                display: none; /* 简化移动端导航 */
            }
            .gtmamk-hero {
                padding-top: 120px;
            }
            .gtmamk-lexicon-grid {
                grid-template-columns: 1fr;
            }
            .gtmamk-article-item:nth-child(even) {
                flex-direction: column-reverse;
            }
        }