/* 基础重置与容器设定 */
    .z1-wrapper {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.6;
        color: #333;
        background-color: #ffffff;
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    .z1-wrapper * {
        box-sizing: border-box;
    }
    
    .z1-container {
        max-width: 1080px;
        margin: 0 auto;
        padding: 0 20px;
    }

    /* 顶部导航 */
    .z1-header {
        background-color: #fafafa;
        padding: 15px 0;
        border-bottom: 1px solid #eee;
    }
    .z1-nav-title {
        font-size: 12px;
        color: #999;
        margin-bottom: 8px;
    }
    .z1-nav-list {
        display: flex;
        flex-wrap: wrap;
        gap: 15px;
        font-size: 13px;
        color: #666;
    }
    .z1-nav-item {
        position: relative;
    }
    .z1-nav-item:not(:last-child)::after {
        content: '';
        display: inline-block;
        width: 1px;
        height: 10px;
        background-color: #ddd;
        margin-left: 15px;
        vertical-align: middle;
    }
    .z1-nav-item.active {
        color: #333;
        font-weight: bold;
    }

    /* 区块通用样式 */
    .z1-section {
        padding: 40px 0;
    }
    .z1-section-gray {
        background-color: #f7f8fa;
        padding: 50px 0;
    }
    .z1-section-title {
        text-align: center;
        font-size: 24px;
        font-weight: 700;
        color: #222;
        margin-bottom: 30px;
    }

    /* 第一部分：行业现状速览 */
    .z1-intro-text {
        background-color: #fcfcfc;
        border: 1px solid #f0f0f0;
        padding: 24px;
        border-radius: 8px;
        font-size: 14px;
        color: #555;
        line-height: 1.8;
        text-align: justify;
    }

    /* 第二部分：新手必踩的4个大坑 */
    .z1-grid-2x2 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .z1-card-mistake {
        background-color: #fff;
        border-radius: 8px;
        padding: 24px;
        display: flex;
        gap: 16px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        border: 1px solid #f0f0f0;
    }
    .z1-mistake-icon {
        flex-shrink: 0;
        width: 24px;
        height: 24px;
        background-color: #fdf0ef;
        color: #e74c3c;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        font-size: 14px;
    }
    .z1-mistake-content h4 {
        margin: 0 0 8px 0;
        font-size: 16px;
        color: #333;
    }
    .z1-mistake-detail {
        font-size: 13px;
        color: #666;
        margin-bottom: 4px;
    }
    .z1-mistake-detail span {
        color: #999;
        margin-right: 5px;
    }

    /* 第三部分：科学评估五步法 */
    .z1-steps-container {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }
    .z1-step-item {
        display: flex;
        gap: 20px;
    }
    .z1-step-number {
        flex-shrink: 0;
        width: 32px;
        height: 32px;
        background-color: #f39c12;
        color: #fff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        font-size: 16px;
        margin-top: 2px;
    }
    .z1-step-content {
        flex-grow: 1;
    }
    .z1-step-title {
        font-size: 18px;
        font-weight: 700;
        color: #222;
        margin-bottom: 15px;
        display: flex;
        align-items: baseline;
        gap: 10px;
    }
    .z1-step-title span {
        font-size: 12px;
        color: #aaa;
        font-weight: normal;
    }
    .z1-step-box {
        background-color: #f9f9f9;
        border-radius: 8px;
        padding: 16px 20px;
        font-size: 13px;
        color: #555;
    }
    .z1-list-dot {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .z1-list-dot li {
        position: relative;
        padding-left: 15px;
        margin-bottom: 10px;
        line-height: 1.5;
    }
    .z1-list-dot li:last-child {
        margin-bottom: 0;
    }
    .z1-list-dot li::before {
        content: '○';
        position: absolute;
        left: 0;
        top: 0;
        color: #f39c12;
        font-size: 10px;
    }
    
    /* 步骤3的特殊表格样式 */
    .z1-formula-box {
        border: 1px solid #eaeaea;
        border-radius: 8px;
        overflow: hidden;
        margin-top: 15px;
    }
    .z1-formula-header {
        background-color: #f5f6f8;
        padding: 10px 15px;
        font-size: 13px;
        color: #666;
        border-bottom: 1px solid #eaeaea;
    }
    .z1-formula-prices {
        display: flex;
        background-color: #fff;
    }
    .z1-price-item {
        flex: 1;
        padding: 20px;
        text-align: center;
    }
    .z1-price-item:first-child {
        border-right: 1px solid #eaeaea;
    }
    .z1-price-title {
        font-size: 13px;
        color: #666;
        margin-bottom: 8px;
    }
    .z1-price-value {
        font-size: 20px;
        font-weight: bold;
    }
    .z1-price-value.red { color: #e74c3c; }
    .z1-price-value.green { color: #27ae60; }
    .z1-formula-footer {
        background-color: #fdf5e6;
        color: #e67e22;
        text-align: center;
        padding: 10px;
        font-size: 13px;
        font-weight: bold;
    }

    /* 步骤4的对比表 */
    .z1-compare-table {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .z1-compare-row {
        display: flex;
        align-items: center;
        font-size: 13px;
    }
    .z1-compare-label {
        width: 80px;
        color: #888;
    }
    .z1-compare-good {
        flex: 1;
        color: #27ae60;
    }
    .z1-compare-good::before {
        content: '✔';
        margin-right: 6px;
        font-size: 12px;
    }
    .z1-compare-bad {
        flex: 1;
        color: #e74c3c;
    }
    .z1-compare-bad::before {
        content: '✖';
        margin-right: 6px;
        font-size: 12px;
    }

    /* 步骤5的高亮框 */
    .z1-highlight-box {
        background-color: #fdf5e6;
        border-left: 3px solid #f39c12;
        padding: 10px 15px;
        font-size: 13px;
        color: #e67e22;
        margin-top: 10px;
        border-radius: 0 4px 4px 0;
    }
    
    /* 步骤1和步骤5的底部标注 */
    .z1-step-footer-text {
        margin-top: 10px;
        font-size: 12px;
        color: #e67e22;
        display: flex;
        align-items: center;
        gap: 5px;
    }
    .z1-step-footer-text::before {
        content: '';
        display: inline-block;
        width: 3px;
        height: 12px;
        background-color: #f39c12;
    }

    /* 第四部分：红黑榜清单 */
    .z1-list-box {
        background-color: #fff;
        border-radius: 8px;
        padding: 24px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        border: 1px solid #f0f0f0;
    }
    .z1-list-title {
        font-size: 16px;
        font-weight: bold;
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .z1-list-title.red { color: #e74c3c; }
    .z1-list-title.green { color: #27ae60; }
    
    .z1-list-items {
        list-style: none;
        padding: 0;
        margin: 0;
        font-size: 13px;
        color: #555;
        margin-bottom: 20px;
    }
    .z1-list-items li {
        position: relative;
        padding-left: 20px;
        margin-bottom: 12px;
    }
    .z1-list-items li:last-child {
        margin-bottom: 0;
    }
    .z1-list-items.red li::before {
        content: '✖';
        position: absolute;
        left: 0;
        top: 0;
        color: #e74c3c;
        font-size: 12px;
    }
    .z1-list-items.green li::before {
        content: '✔';
        position: absolute;
        left: 0;
        top: 0;
        color: #27ae60;
        font-size: 12px;
    }

    .z1-badge {
        display: inline-block;
        background-color: #e8f8f0;
        color: #27ae60;
        font-size: 12px;
        padding: 4px 12px;
        border-radius: 4px;
        font-weight: bold;
    }

    /* 第五部分：总结与建议 */
    .z1-summary-card {
        background: linear-gradient(135deg, #2c3e50, #1a252f);
        border-radius: 12px;
        padding: 40px;
        color: #fff;
        text-align: center;
    }
    .z1-summary-columns {
        display: flex;
        gap: 40px;
        text-align: left;
        margin-bottom: 30px;
    }
    .z1-summary-col {
        flex: 1;
    }
    .z1-summary-col-title {
        font-size: 18px;
        font-weight: bold;
        margin-bottom: 12px;
        color: #f39c12;
    }
    .z1-summary-col:last-child .z1-summary-col-title {
        color: #fff;
    }
    .z1-summary-col-desc {
        font-size: 13px;
        color: #b0b8c1;
        line-height: 1.8;
    }
    .z1-summary-footer {
        border-top: 1px solid rgba(255,255,255,0.1);
        padding-top: 25px;
        font-size: 13px;
        color: #b0b8c1;
    }
    .z1-btn {
        display: inline-block;
        background-color: #e67e22;
        color: #fff;
        text-decoration: none;
        padding: 12px 40px;
        border-radius: 6px;
        font-size: 16px;
        font-weight: bold;
        margin-top: 15px;
        transition: background 0.3s;
    }
    .z1-btn:hover {
        background-color: #d35400;
    }

    /* 响应式调整 */
    @media (max-width: 768px) {
        .z1-grid-2x2 {
            grid-template-columns: 1fr;
        }
        .z1-summary-columns {
            flex-direction: column;
            gap: 20px;
        }
        .z1-compare-row {
            flex-direction: column;
            align-items: flex-start;
            gap: 5px;
        }
        .z1-compare-label {
            margin-bottom: 5px;
        }
        .z1-formula-prices {
            flex-direction: column;
        }
        .z1-price-item:first-child {
            border-right: none;
            border-bottom: 1px solid #eaeaea;
        }
    }