:root {
            --kz1b-primary: #FF9100;
            --kz1b-secondary: #FF4F00;
            --kz1b-bg-light: #F8F9FA;
            --kz1b-text-dark: #2D3436;
            --kz1b-text-gray: #636E72;
            --kz1b-white: #FFFFFF;
            --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;
            background-color: var(--kz1b-bg-light);
            color: var(--kz1b-text-dark);
            line-height: 1.8;
            overflow-x: hidden;
        }

        /* 导航栏设计 */
        .kz1b-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 0 5%;
        }

        .kz1b-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            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: 24px;
            min-width: 0;
        }

        .kz1b-nav-link {
            text-decoration: none;
            color: var(--kz1b-text-dark);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            position: relative;
            padding: 8px 0;
        }

        .kz1b-nav-link:hover {
            color: var(--kz1b-primary);
        }

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

        .kz1b-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--kz1b-primary);
            border-radius: 2px;
        }

        /* Hero 区块 - 独特非对称设计 */
        .kz1b-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: linear-gradient(135deg, #fff 0%, #fff5ea 100%);
            position: relative;
            overflow: hidden;
        }

        .kz1b-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .kz1b-hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            word-break: break-word;
        }

        .kz1b-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            background: linear-gradient(to right, #2d3436, #FF9100);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: keep-all;
        }

        .kz1b-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--kz1b-text-gray);
            margin-bottom: 48px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 核心步骤网格 */
        .kz1b-section {
            padding: 96px 0;
        }

        .kz1b-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .kz1b-card {
            background: var(--kz1b-white);
            padding: 40px;
            border-radius: var(--kz1b-radius);
            box-shadow: var(--kz1b-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(0,0,0,0.03);
            min-width: 0;
        }

        .kz1b-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(255,145,0,0.1);
        }

        .kz1b-step-num {
            width: 48px;
            height: 48px;
            background: var(--kz1b-primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-weight: bold;
            font-size: 20px;
            margin-bottom: 24px;
        }

        .kz1b-card h3 {
            margin-bottom: 16px;
            font-size: 22px;
        }

        .kz1b-card p {
            color: var(--kz1b-text-gray);
            font-size: 15px;
        }

        /* 动态内容标记区块 */
        .kz1b-dynamic-section {
            background: #2D3436;
            color: white;
            border-radius: 32px;
            margin: 48px 24px;
            padding: 64px 5%;
        }

        .kz1b-dynamic-header {
            margin-bottom: 40px;
        }

        .kz1b-solution-item {
            flex: 1 1 300px;
            min-width: 0;
            padding: 24px;
            border-left: 2px solid var(--kz1b-primary);
            margin-bottom: 24px;
        }

        .kz1b-solution-tag {
            display: inline-block;
            background: rgba(255,145,0,0.2);
            color: var(--kz1b-primary);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            margin-bottom: 12px;
        }

        /* 列表样式 */
        .kz1b-list {
            list-style: none;
            margin-top: 16px;
        }

        .kz1b-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 14px;
        }

        .kz1b-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--kz1b-primary);
            font-weight: bold;
        }

        /* 按钮设计 */
        .kz1b-btn {
            display: inline-flex;
            align-items: center;
            padding: 16px 36px;
            background: linear-gradient(45deg, var(--kz1b-primary), var(--kz1b-secondary));
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255,145,0,0.3);
        }

        .kz1b-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(255,145,0,0.4);
        }

        /* 页脚 */
        .kz1b-footer {
            background: #fff;
            padding: 80px 5% 40px;
            border-top: 1px solid #eee;
        }

        .kz1b-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
        }

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

        .kz1b-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--kz1b-primary);
        }

        .kz1b-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .kz1b-footer-col {
            min-width: 150px;
        }

        .kz1b-footer-col h4 {
            margin-bottom: 24px;
            font-size: 16px;
        }

        .kz1b-footer-col a {
            display: block;
            text-decoration: none;
            color: var(--kz1b-text-gray);
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .kz1b-copyright {
            text-align: center;
            padding-top: 40px;
            margin-top: 40px;
            border-top: 1px solid #f0f0f0;
            color: #999;
            font-size: 13px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .kz1b-nav-menu {
                display: none; /* 简化移动端，实际项目中应有汉堡菜单 */
            }
            .kz1b-hero {
                padding-top: 120px;
            }
            .kz1b-grid {
                grid-template-columns: 1fr;
            }
            .kz1b-footer-content {
                flex-direction: column;
            }
        }