/* =========================
   案例列表页
========================= */

.case-page {
    padding: 30px 0 50px;
}


/* =========================
   页面标题
========================= */

.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 30px;
    margin-bottom: 8px;
    color: #111827;
}

.page-header p {
    font-size: 15px;
    color: #666;
}


/* =========================
   筛选区
========================= */

.case-filter {
    margin-bottom: 24px;
}

.filter-row {
    display: grid;
    grid-template-columns: 1fr 220px 120px;
    gap: 12px;
    align-items: center;
}


/* =========================
   列表区
========================= */

.case-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}


/* =========================
   响应式
========================= */

@media (max-width: 992px) {

    .case-list {
        grid-template-columns: repeat(2, 1fr);
    }

}

@media (max-width: 768px) {

    .case-page {
        padding: 20px 0 40px;
    }

    .page-header h1 {
        font-size: 24px;
    }

    .filter-row {
        grid-template-columns: 1fr;
    }

    .case-list {
        grid-template-columns: 1fr;
    }

}

.case-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.case-card {
    display: block;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}

.case-cover {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: #f3f4f6;
    overflow: hidden;
}

.case-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-info {
    padding: 14px;
}

.case-category {
    font-size: 13px;
    color: #2563eb;
    margin-bottom: 6px;
}

.case-title {
    font-size: 18px;
    line-height: 1.4;
    margin: 0 0 8px;
}

.case-summary {
    font-size: 14px;
    color: #555;
    line-height: 1.6;
    margin: 0 0 10px;
}

.case-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: #666;
    margin-bottom: 10px;
}

.case-footer {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: #888;
    border-top: 1px solid #eee;
    padding-top: 10px;
}

.case-empty,
.case-loading {
    grid-column: 1 / -1;
    padding: 30px;
    text-align: center;
    background: #fff;
    border: 1px solid #eee;
    color: #666;
}

@media (max-width: 992px) {
    .case-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .case-list {
        grid-template-columns: 1fr;
    }
}

/* =========================
   案例分类按钮
========================= */

.case-category-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0 24px;
}

.case-category-bar .category-btn {
    border: 1px solid #dcdcdc;
    background: #fff;
    color: #333;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.case-category-bar .category-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
}

.case-category-bar .category-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

/* =========================
   Mobile Case Page Spacing
   案例页手机端顶部留白
========================= */

@media (max-width: 768px) {

    .case-page {
        padding: 24px 14px 28px !important;
    }

    .case-header,
    .page-header {
        margin-top: 14px;
        margin-bottom: 18px;
        padding: 0 2px;
    }

    .case-header h1,
    .page-header h1,
    .page-header h2 {
        font-size: 24px;
        line-height: 1.35;
        margin-bottom: 10px;
    }

    .case-header p,
    .page-header p {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 16px;
    }

    .case-categories,
    .category-filter,
    .filter-tags {
        margin-top: 14px;
        padding: 0 2px;
    }

}