/* 基础变量与重置 */
        :root {
            --kz1b-primary: #FF9100;
            --kz1b-secondary: #2D3436;
            --kz1b-bg-light: #F9FAFB;
            --kz1b-text-dark: #1A1A1A;
            --kz1b-text-gray: #636E72;
            --kz1b-white: #FFFFFF;
            --kz1b-gradient: linear-gradient(135deg, #FFB74D 0%, #FF9100 100%);
            --kz1b-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --kz1b-radius: 16px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--kz1b-text-dark);
            background-color: var(--kz1b-bg-light);
            line-height: 1.8;
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 响应式容器 */
        .kz1b-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .kz1b-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .kz1b-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .kz1b-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .kz1b-logo img {
            height: 40px;
            display: block;
        }

        .kz1b-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
        }

        .kz1b-nav-item {
            min-width: 0;
        }

        .kz1b-nav-link {
            text-decoration: none;
            color: var(--kz1b-text-dark);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .kz1b-nav-link:hover {
            color: var(--kz1b-primary);
            background: rgba(255, 145, 0, 0.05);
        }

        .kz1b-nav-link.active {
            color: var(--kz1b-white);
            background: var(--kz1b-primary);
        }

        /* Hero 区块 - 独特非对称布局 */
        .kz1b-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: linear-gradient(to bottom, #FFF, var(--kz1b-bg-light));
            position: relative;
        }

        .kz1b-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .kz1b-hero-content {
            flex: 1 1 500px;
            min-width: 0;
        }

        .kz1b-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--kz1b-secondary);
        }

        .kz1b-hero-title span {
            color: var(--kz1b-primary);
        }

        .kz1b-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--kz1b-text-gray);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .kz1b-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .kz1b-btn {
            padding: 16px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            text-align: center;
        }

        .kz1b-btn-primary {
            background: var(--kz1b-gradient);
            color: var(--kz1b-white);
            box-shadow: 0 4px 15px rgba(255, 145, 0, 0.3);
        }

        .kz1b-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(255, 145, 0, 0.4);
        }

        /* 转换核心功能展示区 */
        .kz1b-section {
            padding: 96px 0;
        }

        .kz1b-section-title {
            text-align: center;
            margin-bottom: 64px;
            font-size: clamp(1.5rem, 3vw, 2.5rem);
        }

        .kz1b-step-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .kz1b-step-card {
            background: var(--kz1b-white);
            padding: 40px;
            border-radius: var(--kz1b-radius);
            box-shadow: var(--kz1b-shadow);
            transition: all 0.3s ease;
            border-bottom: 4px solid transparent;
        }

        .kz1b-step-card:hover {
            transform: translateY(-10px);
            border-color: var(--kz1b-primary);
        }

        .kz1b-step-number {
            font-size: 3rem;
            font-weight: 800;
            color: rgba(255, 145, 0, 0.1);
            margin-bottom: -20px;
            display: block;
        }

        .kz1b-step-card h3 {
            margin-bottom: 16px;
            font-size: 1.5rem;
        }

        /* 行业解决方案区块 */
        .kz1b-industry-section {
            background: var(--kz1b-secondary);
            color: var(--kz1b-white);
            border-radius: 40px;
            margin: 0 24px;
            padding: 80px 48px;
        }

        .kz1b-industry-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .kz1b-industry-item {
            flex: 1 1 300px;
            min-width: 0;
            background: rgba(255, 255, 255, 0.05);
            padding: 32px;
            border-radius: 20px;
        }

        .kz1b-industry-item h4 {
            color: var(--kz1b-primary);
            font-size: 1.25rem;
            margin-bottom: 20px;
            border-left: 4px solid var(--kz1b-primary);
            padding-left: 12px;
        }

        .kz1b-tool-list {
            list-style: none;
        }

        .kz1b-tool-list li {
            margin-bottom: 12px;
            font-size: 0.95rem;
            opacity: 0.8;
            padding-left: 20px;
            position: relative;
        }

        .kz1b-tool-list li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--kz1b-primary);
        }

        /* 动态内容区 */
        .kz1b-latest-news {
            background: #fff;
        }

        .kz1b-news-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .kz1b-news-card {
            flex: 1 1 500px;
            min-width: 0;
            padding: 24px;
            border: 1px solid #EEE;
            border-radius: 12px;
        }

        /* 页脚 */
        .kz1b-footer {
            background: #F2F2F2;
            padding: 64px 0 32px;
            margin-top: 96px;
        }

        .kz1b-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 48px;
        }

        .kz1b-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .kz1b-footer-brand-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .kz1b-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .kz1b-footer-group {
            min-width: 120px;
        }

        .kz1b-footer-group h5 {
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .kz1b-footer-group ul {
            list-style: none;
        }

        .kz1b-footer-group li {
            margin-bottom: 12px;
        }

        .kz1b-footer-group a {
            text-decoration: none;
            color: var(--kz1b-text-gray);
            transition: color 0.2s;
        }

        .kz1b-footer-group a:hover {
            color: var(--kz1b-primary);
        }

        .kz1b-copyright {
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid #DDD;
            color: #999;
            font-size: 0.9rem;
        }

        /* 移动端适配 */
        @media (max-width: 768px) {
            .kz1b-nav-wrapper {
                height: auto;
                padding: 16px 0;
            }
            .kz1b-nav-menu {
                margin-top: 16px;
                justify-content: center;
                gap: 8px;
            }
            .kz1b-nav-link {
                font-size: 13px;
                padding: 6px 10px;
            }
            .kz1b-hero {
                padding-top: 140px;
                text-align: center;
            }
            .kz1b-hero-grid {
                flex-direction: column;
            }
            .kz1b-cta-group {
                justify-content: center;
            }
            .kz1b-industry-section {
                margin: 0 12px;
                padding: 40px 24px;
            }
        }