/* ========================================
   图片列表页面 - 现代化专业设计
   Image List Page - Modern Professional Design
   ======================================== */

/* 1. 页面主体容器 */
.img_list_page_met_16_5 {
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 30%, #f8fbff 100%);
    padding: 60px 0 80px;
    position: relative;
    overflow: hidden;
    min-height: 600px;
}

/* 动态背景装饰 */
.img_list_page_met_16_5::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 200, 83, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.img_list_page_met_16_5 .container {
    position: relative;
    z-index: 1;
}

/* 2. 英雄区域（标题区域） */
.img-hero-section {
    text-align: center;
    margin-bottom: 60px;
    padding: 50px 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 102, 204, 0.25);
    color: #fff;
    position: relative;
    overflow: hidden;
    transform: translateY(0);
    transition: transform 0.5s ease-out, box-shadow 0.5s ease-out;
    animation: fadeInUp 0.8s ease-out;
}

.img-hero-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 70px rgba(0, 102, 204, 0.35);
}

.img-hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(30deg);
    pointer-events: none;
    animation: shine 8s infinite;
}

@keyframes shine {
    0%, 100% { transform: rotate(30deg) translateX(-100%); }
    50% { transform: rotate(30deg) translateX(100%); }
}

.img-hero-section h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.img-hero-section .hero-desc {
    font-size: 20px;
    font-weight: 400;
    opacity: 0.95;
    line-height: 1.6;
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

/* 3. 图片网格容器 */
.img_list_page_met_16_5 .met-img-list {
    margin: 0 -15px;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.img_list_page_met_16_5 .met-img-list li {
    margin: 0;
    padding: 0;
    opacity: 0;
    animation: fadeInScale 0.6s ease-out forwards;
}

/* 交错动画 */
.img_list_page_met_16_5 .met-img-list li:nth-child(1) { animation-delay: 0.1s; }
.img_list_page_met_16_5 .met-img-list li:nth-child(2) { animation-delay: 0.2s; }
.img_list_page_met_16_5 .met-img-list li:nth-child(3) { animation-delay: 0.3s; }
.img_list_page_met_16_5 .met-img-list li:nth-child(4) { animation-delay: 0.4s; }
.img_list_page_met_16_5 .met-img-list li:nth-child(5) { animation-delay: 0.5s; }
.img_list_page_met_16_5 .met-img-list li:nth-child(6) { animation-delay: 0.6s; }
.img_list_page_met_16_5 .met-img-list li:nth-child(n+7) { animation-delay: 0.7s; }

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* 4. 图片卡片 */
.img_list_page_met_16_5 .met-img-list .item {
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
    padding: 0;
    margin: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.img_list_page_met_16_5 .met-img-list .item:hover {
    transform: translateY(-12px) rotateX(2deg);
    box-shadow: 0 25px 50px rgba(0, 102, 204, 0.2);
}

/* 5. 图片容器 */
.img_list_page_met_16_5 .met-img-list .img {
    position: relative;
    overflow: hidden;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 280px;
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
}

.img_list_page_met_16_5 .met-img-list .img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform: scale(1);
}

.img_list_page_met_16_5 .met-img-list .item:hover .img img {
    transform: scale(1.15) rotate(2deg);
    filter: brightness(1.1) saturate(1.2);
}

/* 图片遮罩层 */
.img_list_page_met_16_5 .met-img-list .black-50 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.6) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
    pointer-events: none;
}

.img_list_page_met_16_5 .met-img-list .item:hover .black-50 {
    opacity: 1;
}

/* 悬停时显示的信息层 */
.img_list_page_met_16_5 .met-img-list .img::after {
    content: '查看详情';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 3;
    pointer-events: none;
    box-shadow: 0 8px 20px rgba(0, 102, 204, 0.3);
    white-space: nowrap;
}

.img_list_page_met_16_5 .met-img-list .item:hover .img::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* 顶部渐变条 */
.img_list_page_met_16_5 .met-img-list .item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    z-index: 4;
}

.img_list_page_met_16_5 .met-img-list .item:hover::before {
    transform: scaleX(1);
}

/* 6. 标题区域 */
.img_list_page_met_16_5 .met-img-list .t {
    padding: 25px 20px;
    margin: 0;
    background: #ffffff;
    color: var(--primary-dark);
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.6;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
    border-top: 1px solid #f0f0f0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.img_list_page_met_16_5 .met-img-list .t a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
}

.img_list_page_met_16_5 .met-img-list .item:hover .t {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    transform: translateY(-2px);
}

.img_list_page_met_16_5 .met-img-list .item:hover .t a {
    color: #ffffff;
}

/* 标题背景动画 */
.img_list_page_met_16_5 .met-img-list .t::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
    z-index: 0;
}

.img_list_page_met_16_5 .met-img-list .item:hover .t::before {
    left: 100%;
}

/* 7. 响应式调整 */
@media (max-width: 1199px) {
    .img-hero-section h2 {
        font-size: 42px;
    }
    .img-hero-section .hero-desc {
        font-size: 18px;
    }
    .img_list_page_met_16_5 .met-img-list {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 991px) {
    .img_list_page_met_16_5 {
        padding: 50px 0 60px;
    }
    .img-hero-section {
        padding: 40px 20px;
        margin-bottom: 40px;
    }
    .img-hero-section h2 {
        font-size: 36px;
    }
    .img-hero-section .hero-desc {
        font-size: 16px;
    }
    .img_list_page_met_16_5 .met-img-list {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    .img_list_page_met_16_5 .met-img-list .img {
        height: 240px;
    }
}

@media (max-width: 767px) {
    .img_list_page_met_16_5 {
        padding: 40px 0 50px;
    }
    .img-hero-section {
        padding: 30px 15px;
        margin-bottom: 30px;
        border-radius: 15px;
    }
    .img-hero-section h2 {
        font-size: 28px;
        margin-bottom: 15px;
    }
    .img-hero-section .hero-desc {
        font-size: 15px;
    }
    .img_list_page_met_16_5 .met-img-list {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 0;
    }
    .img_list_page_met_16_5 .met-img-list .img {
        height: 220px;
    }
    .img_list_page_met_16_5 .met-img-list .t {
        padding: 20px 15px;
        font-size: 16px;
    }
}

/* 8. 加载动画优化 */
.img_list_page_met_16_5 .met-img-list li.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

/* 9. 空状态 */
.img_list_page_met_16_5 .h-100.text-xs-center {
    padding: 100px 20px;
    color: #666;
    font-size: 18px;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
    border-radius: 15px;
    margin: 30px 0;
}

/* 10. 分页样式增强 */
.img_list_page_met_16_5 .met_pager {
    margin-top: 50px;
    padding: 20px 0;
}

.img_list_page_met_16_5 .met_pager a {
    border-radius: 8px;
    margin: 0 5px;
    transition: all 0.3s ease;
}

.img_list_page_met_16_5 .met_pager a:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.2);
}

.img_list_page_met_16_5 .met_pager a.Ahover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-color: var(--primary-color);
    color: #fff;
    font-weight: 600;
}

/* 11. 视频图标样式 */
.img_list_page_met_16_5 .met-img-list .vico {
    border: none;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 3;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.img_list_page_met_16_5 .met-img-list .vico::before {
    content: '';
    width: 0;
    height: 0;
    border-left: 18px solid var(--primary-color);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

.img_list_page_met_16_5 .met-img-list .item:hover .vico {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* 12. 侧边栏调整 */
.img_list_page_met_16_5 .met-sidebar {
    margin-top: 0;
}

/* 13. 动画优化 - 减少重绘 */
.img_list_page_met_16_5 .met-img-list .item,
.img_list_page_met_16_5 .met-img-list .img img {
    will-change: transform;
}

.img_list_page_met_16_5 .met-img-list .item:hover .img img {
    will-change: transform;
}

/* 14. 其他动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}