:root {
            --kz1b-primary: #FF9100;
            --kz1b-primary-light: #FFF4E5;
            --kz1b-text: #2D3436;
            --kz1b-text-light: #636E72;
            --kz1b-bg: #FFFFFF;
            --kz1b-bg-alt: #F9FAFB;
            --kz1b-white: #FFFFFF;
            --kz1b-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
            --kz1b-radius: 16px;
            --kz1b-container: 1300px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--kz1b-text);
            background-color: var(--kz1b-bg);
            line-height: 1.7;
            word-break: break-word;
            overflow-x: hidden;
        }

        /* 布局基础 */
        .kz1b-container {
            max-width: var(--kz1b-container);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .kz1b-flex {
            display: flex;
            flex-wrap: wrap;
        }

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

        /* 导航栏 */
        .kz1b-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .kz1b-nav-wrapper {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

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

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

        .kz1b-nav-menu {
            display: flex;
            list-style: none;
            gap: 12px;
            flex-wrap: wrap;
        }

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

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

        .kz1b-nav-item.kz1b-active a {
            color: var(--kz1b-primary);
            background: var(--kz1b-primary-light);
        }

        /* Hero 区域 */
        .kz1b-hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at top right, #FFF4E5 0%, #FFFFFF 60%);
            position: relative;
            overflow: hidden;
        }

        .kz1b-hero-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 48px;
            align-items: center;
        }

        .kz1b-hero-content {
            max-width: 600px;
        }

        .kz1b-hero-tag {
            display: inline-block;
            background: var(--kz1b-primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .kz1b-hero-title {
            font-size: clamp(2.5rem, 5vw, 3.8rem);
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 800;
            color: #1a1a1a;
            word-break: keep-all;
        }

        .kz1b-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--kz1b-text-light);
            margin-bottom: 40px;
        }

        /* 转换卡片设计 */
        .kz1b-convert-box {
            background: #fff;
            border-radius: 24px;
            padding: 40px;
            box-shadow: 0 40px 80px rgba(255, 145, 0, 0.1);
            border: 1px solid rgba(255, 145, 0, 0.1);
            position: relative;
            transition: transform 0.3s ease;
        }

        .kz1b-convert-box:hover {
            transform: translateY(-8px);
        }

        .kz1b-drop-zone {
            border: 2px dashed #E0E0E0;
            border-radius: 16px;
            padding: 60px 20px;
            text-align: center;
            background: #FAFAFA;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .kz1b-drop-zone:hover {
            border-color: var(--kz1b-primary);
            background: var(--kz1b-primary-light);
        }

        .kz1b-drop-icon {
            width: 64px;
            height: 64px;
            background: var(--kz1b-primary);
            border-radius: 50%;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 32px;
        }

        .kz1b-btn-primary {
            display: inline-block;
            background: var(--kz1b-primary);
            color: #fff;
            padding: 16px 48px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            margin-top: 24px;
            box-shadow: 0 8px 20px rgba(255, 145, 0, 0.3);
        }

        .kz1b-btn-primary:hover {
            background: #E68200;
            transform: scale(1.02);
        }

        /* 特性展示 */
        .kz1b-features {
            padding: 100px 0;
            background: var(--kz1b-bg);
        }

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

        .kz1b-section-title h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        .kz1b-feature-card {
            padding: 40px;
            border-radius: var(--kz1b-radius);
            background: var(--kz1b-bg-alt);
            border: 1px solid rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
        }

        .kz1b-feature-card:hover {
            background: #fff;
            box-shadow: var(--kz1b-shadow);
            transform: translateY(-5px);
        }

        .kz1b-feature-circle {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--kz1b-primary-light);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--kz1b-primary);
            font-weight: bold;
        }

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

        /* 行业解决方案 */
        .kz1b-industry {
            padding: 100px 0;
            background: #1a1a1a;
            color: #fff;
        }

        .kz1b-industry-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 48px;
        }

        .kz1b-industry-item {
            flex: 1;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.05);
            padding: 40px;
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .kz1b-industry-item h4 {
            color: var(--kz1b-primary);
            font-size: 20px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .kz1b-industry-tool {
            list-style: none;
            margin-top: 16px;
        }

        .kz1b-industry-tool li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 14px;
            color: #ccc;
        }

        /* 资讯区块 */
        .kz1b-news {
            padding: 100px 0;
        }

        .kz1b-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 32px;
        }

        .kz1b-news-card {
            display: flex;
            flex-direction: column;
            border-bottom: 1px solid #eee;
            padding-bottom: 24px;
        }

        .kz1b-news-date {
            font-size: 14px;
            color: var(--kz1b-primary);
            margin-bottom: 8px;
        }

        .kz1b-news-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            text-decoration: none;
            color: var(--kz1b-text);
        }

        .kz1b-news-title:hover {
            color: var(--kz1b-primary);
        }

        /* 页脚 */
        .kz1b-footer {
            background: #F9FAFB;
            padding: 80px 0 40px;
            border-top: 1px solid #eee;
        }

        .kz1b-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 60px;
        }

        .kz1b-footer-brand h2 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--kz1b-text);
        }

        .kz1b-footer-links h5 {
            font-size: 16px;
            margin-bottom: 24px;
        }

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

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

        .kz1b-footer-links a {
            text-decoration: none;
            color: var(--kz1b-text-light);
            font-size: 14px;
            transition: color 0.2s;
        }

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

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

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .kz1b-hero-title { font-size: 3rem; }
        }

        @media (max-width: 768px) {
            .kz1b-nav-menu { display: none; }
            .kz1b-hero { padding: 120px 0 60px; }
            .kz1b-hero-grid { grid-template-columns: 1fr; text-align: center; }
            .kz1b-hero-content { margin: 0 auto; }
            .kz1b-industry-item { min-width: 100%; }
        }

        /* 动画交互 */
        .kz1b-visible {
            opacity: 1;
            transform: translateY(0);
        }