:root {
            --kz1b-primary: #FF9100;
            --kz1b-secondary: #FF4F00;
            --kz1b-dark: #1D1D1F;
            --kz1b-gray: #86868B;
            --kz1b-light: #F5F5F7;
            --kz1b-white: #FFFFFF;
            --kz1b-accent: #0071E3;
            --kz1b-gap: 8px;
            --kz1b-radius: 16px;
            --kz1b-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "SF Pro Display", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
            background-color: var(--kz1b-white);
            color: var(--kz1b-dark);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        .kz1b-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏设计 */
        .kz1b-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .kz1b-nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 64px;
            flex-wrap: wrap;
        }

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

        .kz1b-logo img {
            height: 32px;
            display: block;
        }

        .kz1b-nav-list {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 24px;
            min-width: 0;
        }

        .kz1b-nav-item a {
            text-decoration: none;
            color: var(--kz1b-dark);
            font-size: 14px;
            font-weight: 500;
            transition: var(--kz1b-transition);
            opacity: 0.8;
            white-space: nowrap;
        }

        .kz1b-nav-item a:hover {
            color: var(--kz1b-primary);
            opacity: 1;
        }

        .kz1b-nav-item.kz1b-active a {
            color: var(--kz1b-primary);
            opacity: 1;
            font-weight: 700;
        }

        /* Hero 区块 - 独特非对称布局 */
        .kz1b-hero {
            padding-top: 160px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 145, 0, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
            overflow: hidden;
        }

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

        .kz1b-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .kz1b-hero-tag {
            display: inline-block;
            background: var(--kz1b-primary);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .kz1b-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
            color: var(--kz1b-dark);
        }

        .kz1b-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--kz1b-gray);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.6;
        }

        /* 价格卡片区块 */
        .kz1b-pricing-section {
            padding: 80px 0;
            background: #fafafa;
        }

        .kz1b-section-title {
            text-align: center;
            font-size: clamp(2rem, 3vw, 3rem);
            margin-bottom: 64px;
            font-weight: 700;
        }

        .kz1b-pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            padding-bottom: 48px;
        }

        .kz1b-pricing-card {
            background: var(--kz1b-white);
            border-radius: var(--kz1b-radius);
            padding: 48px 32px;
            display: flex;
            flex-direction: column;
            min-width: 0;
            transition: var(--kz1b-transition);
            border: 1px solid rgba(0,0,0,0.05);
            position: relative;
        }

        .kz1b-pricing-card:hover {
            transform: translateY(-12px);
            box-shadow: 0 30px 60px rgba(0,0,0,0.1);
            border-color: var(--kz1b-primary);
        }

        .kz1b-card-featured {
            border: 2px solid var(--kz1b-primary);
            transform: scale(1.05);
            z-index: 2;
        }

        .kz1b-card-featured .kz1b-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--kz1b-primary);
            color: white;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
        }

        .kz1b-card-type {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--kz1b-gray);
        }

        .kz1b-card-price {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 24px;
            display: flex;
            align-items: baseline;
            color: var(--kz1b-dark);
        }

        .kz1b-card-price span {
            font-size: 18px;
            font-weight: 500;
            color: var(--kz1b-gray);
            margin-left: 4px;
        }

        .kz1b-card-features {
            list-style: none;
            margin-bottom: 40px;
            flex-grow: 1;
        }

        .kz1b-card-features li {
            margin-bottom: 16px;
            font-size: 15px;
            display: flex;
            align-items: center;
            color: var(--kz1b-dark);
        }

        .kz1b-card-features li::before {
            content: "✓";
            color: var(--kz1b-primary);
            margin-right: 12px;
            font-weight: 900;
        }

        .kz1b-btn {
            display: block;
            text-align: center;
            padding: 16px 32px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 700;
            transition: var(--kz1b-transition);
            cursor: pointer;
        }

        .kz1b-btn-primary {
            background: var(--kz1b-primary);
            color: white;
        }

        .kz1b-btn-primary:hover {
            background: var(--kz1b-secondary);
            box-shadow: 0 10px 20px rgba(255, 145, 0, 0.3);
        }

        /* 行业解决方案区块 */
        .kz1b-solutions {
            padding: 96px 0;
            background: var(--kz1b-white);
        }

        .kz1b-solution-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
        }

        .kz1b-solution-card {
            padding: 40px;
            border-radius: var(--kz1b-radius);
            background: var(--kz1b-light);
            min-width: 0;
            transition: var(--kz1b-transition);
        }

        .kz1b-solution-card:hover {
            background: #f0f0f2;
        }

        .kz1b-solution-industry {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--kz1b-dark);
        }

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

        .kz1b-tool-item {
            padding: 12px 0;
            border-top: 1px solid rgba(0,0,0,0.05);
            font-size: 15px;
            color: var(--kz1b-gray);
        }

        /* 动态资讯区块标记 */
        .kz1b-news-section {
            padding: 80px 0;
            background: #fff;
        }

        /* 页脚 */
        .kz1b-footer {
            padding: 80px 0 40px;
            background: var(--kz1b-dark);
            color: var(--kz1b-white);
        }

        .kz1b-footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
            margin-bottom: 64px;
        }

        .kz1b-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .kz1b-footer-brand-name {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .kz1b-footer-slogan {
            color: var(--kz1b-gray);
            font-size: 14px;
            max-width: 300px;
        }

        .kz1b-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            flex: 2;
            min-width: 0;
        }

        .kz1b-footer-group h4 {
            margin-bottom: 24px;
            font-size: 16px;
            color: var(--kz1b-white);
        }

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

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

        .kz1b-footer-group ul li a {
            color: var(--kz1b-gray);
            text-decoration: none;
            font-size: 14px;
            transition: var(--kz1b-transition);
        }

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

        .kz1b-copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 40px;
            text-align: center;
            font-size: 12px;
            color: var(--kz1b-gray);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .kz1b-nav-list {
                display: none; /* 简化移动端，通常会配合汉堡菜单，此处仅展示逻辑 */
            }
            .kz1b-hero-grid {
                flex-direction: column;
                text-align: center;
            }
            .kz1b-hero-subtitle {
                margin: 0 auto 40px;
            }
            .kz1b-card-featured {
                transform: scale(1);
            }
            .kz1b-pricing-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 装饰性元素 */
        .kz1b-bg-blur {
            position: absolute;
            width: 400px;
            height: 400px;
            background: var(--kz1b-primary);
            filter: blur(150px);
            opacity: 0.1;
            z-index: -1;
            border-radius: 50%;
        }