.seo-list-container {
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

/* ---------- 列表 ---------- */
.seo-list {
    list-style: none;
    padding: 0;
    margin: -10px;
}

/* ---------- 列表项 ---------- */
.seo-list-item {
    position: relative;
    padding: 16px 20px 16px 32px;
    margin-bottom: 16px;
    background: #f8f9fa;
    border-left: 4px solid #836FFF;
    border-radius: 0 10px 10px 0;
    transition: all 0.3s ease;
    line-height: 1.6;
}

.seo-list-item:last-child {
    margin-bottom: 0;
}

.seo-list-item:hover {
    background: #f3f0ff;
    border-left-color: #a58aff;
    transform: translateX(6px);
    box-shadow: 0 4px 12px rgba(131, 111, 255, 0.15);
}

.seo-list-number {
    position: absolute;
    left: -16px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: #836FFF;
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 8px rgba(131, 111, 255, 0.4);
    z-index: 2;
    border: 3px solid #f8f9fa;
    flex-shrink: 0;
}

/* 悬停时数字边框跟随背景色变化 */
.seo-list-item:hover .seo-list-number {
    border-color: #f3f0ff;
}

/* ---------- 内容区域 ---------- */
.seo-list-content {
    display: block;
    padding-left: 30px;
}

/* ---------- 术语（关键词） ---------- */
.seo-list-term {
    color: #836FFF;
    font-weight: 700;
    font-size: 15px;
    margin-right: 4px;
}

/* ---------- 描述 ---------- */
.seo-list-description {
    color: #3c4043;
    font-size: 15px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .seo-list-item {
        padding: 16px 16px 16px 28px;
        margin-bottom: 14px;
        border-left-width: 3px;
        min-height: 50px;
    }

    /* 移动端数字依然保持居中 */
    .seo-list-number {
        left: -14px;
        top: 50%;
        transform: translateY(-50%);
        width: 28px;
        height: 28px;
        font-size: 13px;
        border-width: 2px;
    }

    .seo-list-term {
        font-size: 14px;
    }

    .seo-list-description {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .seo-list-item {
        padding: 14px 14px 14px 24px;
        border-left-width: 3px;
        min-height: 44px;
    }

    /* 小屏手机数字也保持居中 */
    .seo-list-number {
        left: -12px;
        top: 50%;
        transform: translateY(-50%);
        width: 24px;
        height: 24px;
        font-size: 11px;
        border-width: 2px;
        box-shadow: 0 2px 6px rgba(131, 111, 255, 0.3);
    }

    .seo-list-term {
        font-size: 13px;
    }

    .seo-list-description {
        font-size: 13px;
    }
}

/* ========================================
   可选：深色背景适配
   ======================================== */

.seo-list-container-dark .seo-list-item {
    background: #2a2a3a;
    border-left-color: #836FFF;
}

.seo-list-container-dark .seo-list-item:hover {
    background: #3a3a4e;
}

.seo-list-container-dark .seo-list-description {
    color: #e0e0e0;
}

.seo-list-container-dark .seo-list-term {
    color: #b8a5ff;
}

.seo-list-container-dark .seo-list-number {
    border-color: #2a2a3a;
}

.seo-list-container-dark .seo-list-item:hover .seo-list-number {
    border-color: #3a3a4e;
}