.custom-search-form {
    display: flex;
    align-items: center;
    overflow: hidden;
    max-width: 600px;
    margin: 0 auto;
    flex-wrap: wrap; /* 小屏幕自动换行 */
    gap: 12px;        /* 元素间距 */
    min-height: 60px;
}

.search-input {
    flex-grow: 1;
    min-width: 200px; /* 小屏幕最小宽度 */
}

.search-input input {
    width: 100%;
    padding: 12px 16px;
    border: none;
    outline: none;
    box-sizing: border-box;
}

/* 文章类型筛选样式 */
.search-post-type {
    border-left: 1px solid #e0e0e0;
    padding: 0 10px;
    white-space: nowrap;
}

.search-post-type-select {
    border: none;
    background: transparent;
    outline: none;
    padding: 12px 0;
}

.search-submit {
    padding: 12px 20px;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
    height: 60px;
}

/*响应式断点：小屏幕堆叠显示*/
@media (max-width: 600px) {
    .search-post-type {
        border-left: none;
        border-top: 1px solid #e0e0e0;
        width: 100%;
        margin-top: 8px;
    }
    .search-submit {
        margin-top: 8px;
        width: 100%;
    }
}