/* =========================================
   列表页公共样式 (list-page.css)
   合并自 list_article.html + list_image.html
   ========================================= */

:root {
    --case-bg-body: #f8f9fc;
    --case-bg-gradient: linear-gradient(to bottom, #ffffff 0%, #f8f9fc 100%);

    --case-text-main: #0f172a;
    --case-text-muted: #64748b;

    --case-shadow-card: 0 4px 12px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.02);
    --case-shadow-hover: 0 12px 24px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.04);

    --case-primary: #0056b3;
    --case-primary-fade: rgba(0, 86, 179, 0.06);

    --case-radius: 12px;
    --case-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* 标签颜色 */
    --tag-blue-bg: #eef6ff;
    --tag-blue-text: #1d4ed8;
    --tag-green-bg: #ecfdf5;
    --tag-green-text: #047857;
    --tag-orange-bg: #fff7ed;
    --tag-orange-text: #c2410c;
    --tag-purple-bg: #faf5ff;
    --tag-purple-text: #7e22ce;
}

/* 内容区域包裹器 */
.case-wrapper {
    color: var(--case-text-main);
    background: var(--case-bg-gradient);
    padding-bottom: 60px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.case-wrapper * {
    box-sizing: border-box;
}

.case-wrapper a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s var(--case-ease);
}

.case-wrapper img {
    max-width: 100%;
    height: auto;
    display: block;
}

.case-wrapper ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

/* 容器 */
.case-container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

/* 面包屑导航 */
.case-breadcrumb {
    font-size: 13px;
    color: #64748b;
    display: flex;
    align-items: center;
    gap: 8px;
}

.case-breadcrumb a {
    color: #94a3b8;
}

.case-breadcrumb a:hover {
    color: #fff;
    text-decoration: underline;
}

/* 布局 */
.case-layout {
    display: grid;
    grid-template-columns: 270px 1fr;
    gap: 48px;
    align-items: start;
}

/* 侧边栏 */
.case-sidebar {
    position: sticky;
    top: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.case-side-card {
    background: #fff;
    border-radius: var(--case-radius);
    box-shadow: var(--case-shadow-card);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.case-side-hd {
    font-size: 13px;
    font-weight: 800;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 16px 20px 8px;
    background: linear-gradient(to bottom, #fff, #f8fafc);
    margin: 0;
}

.case-side-menu {
    list-style: none;
    padding: 8px;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.case-side-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--case-text-main);
    font-size: 14px;
    transition: all 0.2s var(--case-ease);
    text-decoration: none;
    border-left: 3px solid transparent;
    line-height: normal;
}

.case-side-menu a .icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    transition: color 0.2s;
    flex-shrink: 0;
    font-size: 16px;
}

.case-side-menu a .text {
    flex: 1;
    font-weight: 600;
    color: #334155;
    margin-top: -2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
    vertical-align: middle;
}

.case-side-menu a.on,
.case-side-menu a:hover {
    background: linear-gradient(to right, var(--case-primary-fade), transparent);
    border-left-color: var(--case-primary);
    color: var(--case-primary);
}

.case-side-menu a.on .icon,
.case-side-menu a.on .text,
.case-side-menu a:hover .icon,
.case-side-menu a:hover .text {
    color: var(--case-primary);
}

.case-contact-widget {
    padding: 20px;
    text-align: center;
    background: #f0f7ff;
}

.case-contact-widget i {
    font-size: 24px;
    color: var(--case-primary);
    margin-bottom: 10px;
    display: block;
}

.case-contact-widget div {
    font-size: 13px;
    color: var(--case-text-muted);
    margin-bottom: 4px;
}

.case-contact-widget strong {
    font-size: 20px;
    color: #0f172a;
    font-family: monospace;
    display: block;
}

/* 右侧内容区标题 */
.case-main-title {
    background: #fff;
    border-radius: 16px;
    padding: 32px 40px;
    margin-bottom: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
}

.case-header-info {
    flex: 1;
}

.case-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 13px;
    color: #94a3b8;
    margin-top: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.case-breadcrumb a {
    color: #94a3b8;
    margin: 0 4px;
    text-decoration: none;
    transition: color 0.2s;
}

.case-breadcrumb a:hover {
    color: var(--case-primary);
}

.case-sort-desc {
    color: #64748b;
    margin-top: 16px;
    margin-bottom: 0px;
    font-size: 15px;
    line-height: 1.7;
    max-width: 850px;
    opacity: 0.9;
}

.case-main-title h1 {
    font-size: 32px;
    color: #0f172a;
    margin: 0;
    letter-spacing: -0.8px;
    line-height: 1.2;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 16px;
}

.case-main-title h1::before {
    content: '';
    width: 4px;
    height: 32px;
    background: var(--case-primary);
    border-radius: 4px;
    display: inline-block;
}

/* 卡片网格 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.case-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--case-shadow-card);
    transition: all 0.4s var(--case-ease);
    border: 1px solid rgba(59, 130, 246, 0.1);
    position: relative;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -5px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.4);
}

.case-card-img {
    height: 200px;
    overflow: hidden;
    position: relative;
    background: #f8fafc;
    display: block;
}

.case-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--case-ease);
}

.case-card:hover .case-card-img img {
    transform: scale(1.06);
}

.case-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1;
    position: relative;
}

.case-card-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.5;
    color: #111827;
    margin: 0;
    transition: color 0.3s;
    display: block;
}

.case-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

.case-card:hover .case-card-title a {
    color: var(--case-primary);
}

.case-card-desc {
    font-size: 14px;
    color: var(--case-text-muted);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

/* 来源标签 */
.case-source-tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
    background: #ecfdf5;
    color: #047857;
    display: inline-flex;
    align-items: center;
    width: fit-content;
    margin-bottom: 8px;
}

/* 卡片底部元信息 */
.case-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px dashed #f1f5f9;
    font-size: 12px;
    color: #94a3b8;
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.case-btn-simple {
    font-size: 12px;
    color: var(--case-primary);
    font-weight: 600;
    transition: color 0.2s;
}

.case-btn-simple:hover {
    text-decoration: underline;
}

/* 入场动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.case-animate-up {
    animation: fadeInUp 0.8s var(--case-ease) forwards;
    opacity: 0;
}

/* 分页 */
.case-pages {
    margin-top: 50px;
}

.case-pages .pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.case-pages .pagination a,
.case-pages .pagination span.page-num,
.case-pages .pagination span.page-current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: 50px;
    border: 1px solid #e2e8f0;
    margin: 0;
    color: var(--case-text-muted);
    text-decoration: none;
    transition: all 0.2s;
    background: #fff;
    font-size: 13px;
    white-space: nowrap;
}

.case-pages .pagination span.page-current,
.case-pages .pagination a.page-current,
.case-pages .pagination a:hover,
.case-pages .pagination a.cur,
.case-pages .pagination a.active {
    background: var(--case-primary);
    border-color: var(--case-primary);
    color: #fff;
}

.case-pages .pagination span.rows {
    display: none;
}


/* =========================================
   以下为 list_image.html 独有样式
   ========================================= */

/* 图片列表页：标题区横向布局 */
.case-main-title--image {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
}

.case-main-title--image .case-breadcrumb {
    margin-top: 10px;
}

/* 图片列表页：卡片缩略图更高 */
.case-card--image .case-card-img {
    height: 230px;
}

/* 图片列表页：卡片标题更大 */
.case-card--image .case-card-title {
    font-size: 20px;
}

/* 图片列表页：元信息间距微调 */
.case-card--image .case-meta {
    margin-top: 16px;
    padding-top: 12px;
}

/* 图片悬停光泽效果 */
.case-card-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.4), transparent);
    transform: skewX(-25deg);
    transition: 0.7s;
    z-index: 1;
}

.case-card:hover .case-card-img::after {
    left: 125%;
    transition: 0.7s ease-in-out;
}

/* 搜索框 */
.case-search {
    position: relative;
    width: 100%;
}

.case-search input {
    width: 100%;
    padding: 14px 16px 14px 44px;
    border: 1px solid #e2e8f0;
    border-radius: 50px;
    outline: none;
    transition: all 0.3s var(--case-ease);
    background: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
    font-size: 14px;
}

.case-search input:focus {
    border-color: var(--case-primary);
    box-shadow: 0 0 0 4px var(--case-primary-fade);
}

.case-search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 14px;
}

/* Hero 区域（预留） */
.case-hero {
    background: #0f172a;
    color: #fff;
    padding: 64px 0;
    background-image:
        radial-gradient(circle at 80% 20%, #1e293b 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, #1e293b 0%, transparent 50%);
    position: relative;
    overflow: hidden;
    margin-bottom: 48px;
}

.case-hero h1 {
    font-size: 38px;
    font-weight: 800;
    margin: 0 0 16px 0;
    letter-spacing: -0.8px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    color: white;
}

.case-hero p {
    color: #94a3b8;
    max-width: 800px;
    font-size: 16px;
    margin-bottom: 24px;
    font-weight: 300;
    line-height: 1.7;
}

/* 标签组 */
.case-tags {
    display: flex;
    gap: 6px;
    flex-wrap: nowrap;
    overflow-x: auto;
    margin-top: auto;
    padding-top: 16px;
    min-height: 48px;
    align-items: center;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.case-tags::-webkit-scrollbar {
    display: none;
}

.case-tag {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.2s;
    height: 24px;
    display: inline-flex;
    align-items: center;
    line-height: 1;
    background: rgba(26, 86, 219, 0.05);
    color: #1a56db;
    flex-shrink: 0;
}

.case-tag:hover {
    transform: translateY(-1px);
    background: rgba(26, 86, 219, 0.1);
}

.case-tag-blue {
    background: var(--tag-blue-bg);
    color: var(--tag-blue-text);
}

/* 元信息右侧区域 */
.case-meta-right {
    display: flex;
    gap: 12px;
}

/* 卡片按钮 */
.case-btn-card {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 12px;
    font-size: 12px;
    color: var(--case-primary);
    border: 1px solid var(--case-primary);
    border-radius: 999px;
    text-decoration: none;
    transition: all 0.3s;
    background: transparent;
    font-weight: 600;
    line-height: 1;
    height: 24px;
}

.case-btn-card:hover {
    background: var(--case-primary);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* 分页通用 span 样式 */
.case-pages .pagination span {
    padding: 0 10px;
    color: var(--case-text-muted);
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    height: 36px;
}