/* 基础变量 */
        :root {
            --kz1b-primary: #FF9100;
            --kz1b-primary-dark: #E68200;
            --kz1b-bg: #FFFFFF;
            --kz1b-text: #2C3E50;
            --kz1b-text-light: #7F8C8D;
            --kz1b-section-bg: #F9FAFB;
            --kz1b-radius: 16px;
            --kz1b-container: 1100px;
            --kz1b-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 重置与通用 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: var(--kz1b-text);
            background-color: var(--kz1b-bg);
            overflow-x: hidden;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--kz1b-transition);
        }

        /* 导航栏 */
        .kz1b-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .kz1b-nav-container {
            max-width: var(--kz1b-container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .kz1b-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .kz1b-logo img {
            height: 32px;
            width: auto;
        }

        .kz1b-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

        .kz1b-menu-item a {
            font-size: 15px;
            font-weight: 500;
            color: var(--kz1b-text);
            padding: 8px 4px;
            position: relative;
        }

        .kz1b-menu-item a:hover, 
        .kz1b-menu-item a.active {
            color: var(--kz1b-primary);
        }

        .kz1b-menu-item a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--kz1b-primary);
        }

        /* Hero 区 - 非对称对角线布局 */
        .kz1b-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(135deg, #FFF9F2 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }

        .kz1b-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -5%;
            width: 40%;
            height: 120%;
            background: var(--kz1b-primary);
            opacity: 0.03;
            transform: rotate(5deg);
            z-index: 0;
        }

        .kz1b-hero-content {
            max-width: var(--kz1b-container);
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }

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

        .kz1b-hero-tag {
            display: inline-block;
            background: rgba(255, 145, 0, 0.1);
            color: var(--kz1b-primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .kz1b-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 24px;
            color: #1A1A1A;
        }

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

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

        .kz1b-btn {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 600;
            cursor: pointer;
            text-align: center;
            min-width: 160px;
        }

        .kz1b-btn-primary {
            background: var(--kz1b-primary);
            color: white;
            box-shadow: 0 8px 20px rgba(255, 145, 0, 0.3);
        }

        .kz1b-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(255, 145, 0, 0.4);
        }

        /* 技巧展示区 - 网格布局 */
        .kz1b-section {
            padding: 96px 24px;
            max-width: var(--kz1b-container);
            margin: 0 auto;
        }

        .kz1b-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .kz1b-section-title {
            font-size: 2.5rem;
            margin-bottom: 16px;
        }

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

        .kz1b-card {
            background: #FFFFFF;
            border: 1px solid #EDEDED;
            border-radius: var(--kz1b-radius);
            padding: 40px;
            transition: var(--kz1b-transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .kz1b-card:hover {
            border-color: var(--kz1b-primary);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            transform: translateY(-8px);
        }

        .kz1b-card-icon {
            font-size: 32px;
            margin-bottom: 24px;
            color: var(--kz1b-primary);
        }

        .kz1b-card-title {
            font-size: 1.5rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .kz1b-card-desc {
            color: var(--kz1b-text-light);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* 行业解决方案 - 侧边大标题布局 */
        .kz1b-industry-section {
            background: var(--kz1b-section-bg);
            padding: 96px 0;
        }

        .kz1b-industry-container {
            max-width: var(--kz1b-container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .kz1b-industry-sidebar {
            flex: 0 0 300px;
            min-width: 0;
        }

        .kz1b-industry-sidebar h2 {
            font-size: 3rem;
            line-height: 1.1;
            color: var(--kz1b-text);
            position: sticky;
            top: 120px;
        }

        .kz1b-industry-sidebar span {
            color: var(--kz1b-primary);
        }

        .kz1b-industry-main {
            flex: 1;
            min-width: 320px;
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .kz1b-industry-item {
            background: white;
            padding: 32px;
            border-radius: var(--kz1b-radius);
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
        }

        .kz1b-industry-name {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .kz1b-industry-tools {
            list-style: none;
        }

        .kz1b-industry-tools li {
            padding: 8px 0;
            color: var(--kz1b-text-light);
            border-bottom: 1px dashed #EEE;
        }

        .kz1b-industry-tools li:last-child {
            border-bottom: none;
        }

        /* 动态资讯区 */
        .kz1b-dynamic-section {
            padding: 96px 24px;
            max-width: var(--kz1b-container);
            margin: 0 auto;
        }

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

        .kz1b-news-item {
            flex: 1;
            min-width: 300px;
            padding: 24px;
            background: #fff;
            border-left: 4px solid var(--kz1b-primary);
            transition: var(--kz1b-transition);
        }

        .kz1b-news-item:hover {
            background: #FFF9F2;
        }

        /* 页脚 */
        .kz1b-footer {
            background: #1A1A1A;
            color: #FFFFFF;
            padding: 80px 24px 40px;
        }

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

        .kz1b-footer-brand {
            flex: 1;
            min-width: 200px;
        }

        .kz1b-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--kz1b-primary);
        }

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

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

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

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

        .kz1b-footer-col a {
            color: #999;
            font-size: 14px;
        }

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

        .kz1b-footer-bottom {
            max-width: var(--kz1b-container);
            margin: 40px auto 0;
            padding-top: 40px;
            border-top: 1px solid #333;
            text-align: center;
            color: #666;
            font-size: 14px;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .kz1b-menu {
                display: none; /* 简化移动端，实际开发中应使用汉堡菜单 */
            }
            .kz1b-hero-text {
                text-align: center;
            }
            .kz1b-cta-group {
                justify-content: center;
            }
            .kz1b-industry-sidebar {
                flex: 1 1 100%;
            }
            .kz1b-industry-sidebar h2 {
                position: static;
                font-size: 2rem;
            }
        }