/* 1. 基础容器样式 */
    .features-grid-section {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        background-color: #ffffff;
        padding: 80px 20px;
        max-width: 1200px;
        margin: 0 auto;
        color: #0f172a;
    }

    /* 2. 顶部标题区域 */
    .features-header {
        text-align: center;
        margin-bottom: 60px;
    }

    .features-header h2 {
        font-size: 42px;
        font-weight: 800;
        margin-bottom: 20px;
        color: #0f172a;
        letter-spacing: -0.02em;
    }

    .features-header p {
        font-size: 18px;
        color: #64748b;
        max-width: 700px;
        margin: 0 auto;
        line-height: 1.6;
    }

    /* 3. 网格布局 - 3列展示 */
    .features-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    /* 4. 单个卡片样式 */
    .feature-card {
        background: #ffffff;
        border: 1px solid #f1f5f9;
        border-radius: 24px;
        padding: 40px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
    }

    /* 图标盒子 (淡紫色背景) */
    .feature-icon-box {
        width: 50px;
        height: 50px;
        background-color: #f0f0ff; /* 还原图中淡紫色 */
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 25px;
        color: #56B8B8; /* 使用主色调 */
    }

    .feature-card h3 {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 25px;
        color: #0f172a;
    }

    /* 5. 打钩列表样式 */
    .feature-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .feature-list li {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 14px;
        font-size: 15px;
        color: #475569;
        font-weight: 500;
    }

    /* 圆圈打钩图标 */
    .check-icon {
        width: 20px;
        height: 20px;
        border: 1.5px solid #56B8B8;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        color: #56B8B8;
    }

    /* 6. 响应式适配 */
    @media (max-width: 1024px) {
        .features-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 640px) {
        .features-grid { grid-template-columns: 1fr; }
        .features-header h2 { font-size: 32px; }
        .feature-card { padding: 30px; }
    }