/* 变量与基础重置 */
        :root {
            --k8qm-primary: #0056b3;
            --k8qm-accent: #00c6ff;
            --k8qm-dark: #1a1a1a;
            --k8qm-light: #f8f9fa;
            --k8qm-text: #333333;
            --k8qm-gray: #6c757d;
            --k8qm-border: #e9ecef;
            --k8qm-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --k8qm-container: 1400px;
        }

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

        body {
            font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
            color: var(--k8qm-text);
            line-height: 1.7;
            background-color: #ffffff;
            overflow-x: hidden;
            word-break: keep-all;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 导航栏 */
        .k8qm-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--k8qm-border);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .k8qm-nav-container {
            max-width: var(--k8qm-container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            flex-wrap: wrap;
        }

        .k8qm-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .k8qm-logo img {
            height: 40px;
            width: auto;
        }

        .k8qm-nav-menu {
            display: flex;
            list-style: none;
            gap: 32px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .k8qm-nav-item a {
            text-decoration: none;
            color: var(--k8qm-dark);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

        .k8qm-nav-item a:hover {
            color: var(--k8qm-primary);
        }

        .k8qm-nav-item a.active {
            color: var(--k8qm-primary);
        }

        .k8qm-nav-item a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--k8qm-primary);
        }

        /* Hero 区域 - 独特居中卡片布局 */
        .k8qm-hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            background: #000;
            overflow: hidden;
        }

        .k8qm-hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.5;
            z-index: 1;
        }

        .k8qm-hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            padding: 64px;
            border-radius: 24px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #ffffff;
            box-shadow: 0 40px 100px rgba(0,0,0,0.5);
            word-break: break-word;
        }

        .k8qm-hero-tag {
            display: inline-block;
            background: var(--k8qm-primary);
            color: white;
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .k8qm-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #fff 0%, #aaa 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .k8qm-hero-subtitle {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            color: rgba(255,255,255,0.8);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .k8qm-hero-cta {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .k8qm-btn {
            display: inline-block;
            padding: 16px 40px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .k8qm-btn-primary {
            background: var(--k8qm-primary);
            color: white;
            box-shadow: 0 10px 20px rgba(0, 86, 179, 0.3);
        }

        .k8qm-btn-primary:hover {
            transform: translateY(-3px);
            background: #004494;
            box-shadow: 0 15px 30px rgba(0, 86, 179, 0.4);
        }

        .k8qm-btn-outline {
            background: transparent;
            color: white;
            border: 2px solid rgba(255,255,255,0.3);
        }

        .k8qm-btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: white;
        }

        /* 性能指标区块 */
        .k8qm-benchmarks {
            padding: 96px 24px;
            background: var(--k8qm-light);
        }

        .k8qm-section-header {
            max-width: var(--k8qm-container);
            margin: 0 auto 64px;
            text-align: center;
        }

        .k8qm-section-title {
            font-size: clamp(1.8rem, 3vw, 2.8rem);
            font-weight: 700;
            color: var(--k8qm-dark);
            margin-bottom: 16px;
        }

        .k8qm-benchmark-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            max-width: var(--k8qm-container);
            margin: 0 auto;
        }

        .k8qm-benchmark-card {
            background: white;
            padding: 48px;
            border-radius: 20px;
            box-shadow: var(--k8qm-shadow);
            transition: transform 0.3s ease;
            border: 1px solid var(--k8qm-border);
            min-width: 0;
            word-break: break-word;
        }

        .k8qm-benchmark-card:hover {
            transform: translateY(-10px);
        }

        .k8qm-benchmark-value {
            font-size: 48px;
            font-weight: 800;
            color: var(--k8qm-primary);
            margin-bottom: 8px;
            display: block;
        }

        .k8qm-benchmark-label {
            font-size: 18px;
            font-weight: 700;
            color: var(--k8qm-dark);
            margin-bottom: 16px;
            display: block;
        }

        .k8qm-benchmark-desc {
            color: var(--k8qm-gray);
            font-size: 15px;
        }

        /* 行业解决方案 - 错位图文布局 */
        .k8qm-solutions {
            padding: 96px 24px;
        }

        .k8qm-solution-item {
            max-width: var(--k8qm-container);
            margin: 0 auto 96px;
            display: flex;
            align-items: center;
            gap: 64px;
            flex-wrap: wrap;
        }

        .k8qm-solution-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .k8qm-solution-image {
            flex: 1 1 500px;
            min-width: 0;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0,0,0,0.15);
        }

        .k8qm-solution-content {
            flex: 1 1 400px;
            min-width: 0;
            word-break: break-word;
        }

        .k8qm-solution-industry {
            color: var(--k8qm-primary);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 16px;
            display: block;
        }

        .k8qm-solution-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--k8qm-dark);
        }

        .k8qm-solution-impact {
            background: #eef6ff;
            padding: 24px;
            border-left: 4px solid var(--k8qm-primary);
            border-radius: 0 12px 12px 0;
            margin-top: 24px;
        }

        /* 路线图 */
        .k8qm-roadmap {
            background: var(--k8qm-dark);
            color: white;
            padding: 96px 24px;
        }

        .k8qm-roadmap-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            max-width: var(--k8qm-container);
            margin: 0 auto;
        }

        .k8qm-roadmap-card {
            background: rgba(255,255,255,0.05);
            padding: 32px;
            border-radius: 16px;
            border: 1px solid rgba(255,255,255,0.1);
            position: relative;
        }

        .k8qm-roadmap-q {
            font-size: 14px;
            font-weight: 700;
            color: var(--k8qm-accent);
            margin-bottom: 12px;
            display: block;
        }

        .k8qm-roadmap-milestone {
            font-size: 18px;
            font-weight: 600;
        }

        /* 证言区 */
        .k8qm-testimonials {
            padding: 96px 24px;
            background: #fff;
        }

        .k8qm-testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 32px;
            max-width: var(--k8qm-container);
            margin: 0 auto;
        }

        .k8qm-testimonial-card {
            padding: 40px;
            background: var(--k8qm-light);
            border-radius: 24px;
            position: relative;
        }

        .k8qm-testimonial-content {
            font-style: italic;
            font-size: 18px;
            margin-bottom: 24px;
            color: #444;
        }

        .k8qm-testimonial-author {
            font-weight: 700;
            color: var(--k8qm-dark);
        }

        /* 页脚 */
        .k8qm-footer {
            background: #f1f3f5;
            padding: 80px 24px 40px;
            border-top: 1px solid var(--k8qm-border);
        }

        .k8qm-footer-container {
            max-width: var(--k8qm-container);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
        }

        .k8qm-footer-brand {
            flex: 1 1 300px;
        }

        .k8qm-footer-logo-text {
            font-size: 24px;
            font-weight: 800;
            color: var(--k8qm-primary);
            margin-bottom: 24px;
        }

        .k8qm-footer-links {
            flex: 2 1 600px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 32px;
        }

        .k8qm-footer-group h4 {
            margin-bottom: 20px;
            font-size: 16px;
        }

        .k8qm-footer-group ul {
            list-style: none;
        }

        .k8qm-footer-group li {
            margin-bottom: 12px;
        }

        .k8qm-footer-group a {
            text-decoration: none;
            color: var(--k8qm-gray);
            transition: color 0.3s;
        }

        .k8qm-footer-group a:hover {
            color: var(--k8qm-primary);
        }

        .k8qm-copyright {
            width: 100%;
            text-align: center;
            margin-top: 64px;
            padding-top: 24px;
            border-top: 1px solid var(--k8qm-border);
            color: var(--k8qm-gray);
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .k8qm-nav-menu {
                display: none; /* 简化演示，实际应有汉堡菜单 */
            }
            .k8qm-hero-content {
                padding: 32px 24px;
            }
            .k8qm-testimonial-grid {
                grid-template-columns: 1fr;
            }
            .k8qm-solution-item {
                flex-direction: column !important;
            }
            .k8qm-solution-image {
                flex: 1 1 100%;
            }
        }