/* ============================================= */
/* European Product Showcase - Frontend CSS      */
/* ============================================= */

/* ===== 全局样式 ===== */
.eps-poster-container {
    margin: 50px 0;
    padding: 40px 0;
    background: #f8f8f8;
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.eps-poster-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 0 20px;
}

.eps-poster-title {
    font-size: 2.2rem;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.eps-poster-description {
    font-size: 1.15rem;
    color: #666;
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== 网格布局 (Grid Layout) ===== */
.eps-poster-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.eps-poster-grid .eps-poster-item {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

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

.eps-poster-grid .eps-poster-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.eps-poster-grid .eps-poster-image {
    height: 280px;
    overflow: hidden;
    position: relative;
}

.eps-poster-grid .eps-poster-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.eps-poster-grid .eps-poster-item:hover .eps-poster-image img {
    transform: scale(1.08);
}

.eps-poster-grid .eps-poster-content {
    padding: 20px;
}

.eps-poster-grid .eps-poster-desc {
    margin-bottom: 15px;
    font-size: 0.95rem;
    color: #555;
    line-height: 1.6;
    min-height: 60px;
}

.eps-poster-grid .eps-poster-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.eps-poster-grid .eps-poster-enlarge {
    color: #4a6cf7;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.3s;
}

.eps-poster-grid .eps-poster-enlarge:hover {
    color: #2c4bd2;
}

.eps-poster-grid .eps-poster-enlarge i {
    margin-right: 5px;
    font-size: 0.9em;
}

/* ===== 瀑布流布局 (Masonry Layout) ===== */
.eps-poster-masonry {
    columns: 3;
    column-gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.eps-poster-masonry .eps-poster-item {
    break-inside: avoid;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
    margin-bottom: 25px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.eps-poster-masonry .eps-poster-item:nth-child(2n) {
    animation-delay: 0.1s;
}

.eps-poster-masonry .eps-poster-item:nth-child(3n) {
    animation-delay: 0.2s;
}

.eps-poster-masonry .eps-poster-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.eps-poster-masonry .eps-poster-image {
    overflow: hidden;
}

.eps-poster-masonry .eps-poster-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.eps-poster-masonry .eps-poster-item:hover .eps-poster-image img {
    transform: scale(1.08);
}

.eps-poster-masonry .eps-poster-content {
    padding: 20px;
}

.eps-poster-masonry .eps-poster-desc {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.6;
    margin-bottom: 15px;
}

.eps-poster-masonry .eps-poster-meta {
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.eps-poster-masonry .eps-poster-enlarge {
    color: #4a6cf7;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-block;
    transition: color 0.3s;
}

.eps-poster-masonry .eps-poster-enlarge:hover {
    color: #2c4bd2;
}

.eps-poster-masonry .eps-poster-enlarge i {
    margin-right: 5px;
    font-size: 0.9em;
}

/* ===== 拼贴布局 (Photo Collage) ===== */
.eps-poster-collage {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 10px;
    height: 700px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.eps-poster-collage .eps-poster-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    background-color: #f0f0f0;
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.eps-poster-collage .eps-poster-item:hover {
    transform: scale(0.98);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    z-index: 5;
}

.eps-poster-collage .eps-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.eps-poster-collage .eps-collage-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.eps-poster-collage .eps-poster-item:hover .eps-collage-image {
    transform: scale(1.1);
}

/* 文字覆盖层优化 - 确保文字可读 */
.eps-detail-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 15px 12px 8px;
    color: #fff;
    z-index: 3;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.4s ease;
    pointer-events: none;
}

.eps-poster-item:hover .eps-detail-overlay {
    opacity: 1;
    transform: translateY(0);
}

.eps-detail-overlay .eps-detail-text {
    font-size: 0.85rem;
    line-height: 1.4;
    max-height: 4.2em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* 根据格子大小调整文字显示 */
.eps-poster-collage .eps-item-1,
.eps-poster-collage .eps-item-4,
.eps-poster-collage .eps-item-7 {
    grid-column: span 2;
}

.eps-poster-collage .eps-item-1 {
    grid-row: 1 / span 2;
}

.eps-poster-collage .eps-item-4 {
    grid-row: 2 / span 2;
    grid-column: 3 / span 2;
}

.eps-poster-collage .eps-item-7 {
    grid-row: 3;
    grid-column: 3 / span 2;
}

/* 大格子使用更大的字体 */
.eps-poster-collage .eps-item-1 .eps-detail-text,
.eps-poster-collage .eps-item-4 .eps-detail-text,
.eps-poster-collage .eps-item-7 .eps-detail-text {
    font-size: 1rem;
    -webkit-line-clamp: 4;
}

/* ===== 灯箱样式 (Lightbox) ===== */
.eps-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.92);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.eps-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.eps-lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    text-align: center;
    padding: 30px;
}

.eps-lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    display: block;
    margin: 0 auto;
    border-radius: 5px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.eps-lightbox-desc {
    color: #fff;
    padding: 25px 0 15px;
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.eps-lightbox-close {
    position: absolute;
    top: 30px;
    right: 30px;
    color: #fff;
    font-size: 2.8rem;
    cursor: pointer;
    z-index: 10;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.eps-lightbox-close:hover {
    transform: rotate(90deg);
}

.eps-lightbox-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    transform: translateY(-50%);
    z-index: 10;
}

.eps-lightbox-prev, 
.eps-lightbox-next {
    background: rgba(255,255,255,0.15);
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.eps-lightbox-prev:hover, 
.eps-lightbox-next:hover {
    background: rgba(255,255,255,0.25);
    transform: scale(1.1);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .eps-poster-collage {
        height: 600px;
    }
}

@media (max-width: 992px) {
    /* Masonry 布局响应式 */
    .eps-poster-masonry {
        columns: 2;
    }
    
    /* 拼贴布局响应式 */
    .eps-poster-collage {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(4, 1fr);
        height: 800px;
    }
    
    .eps-poster-collage .eps-item-1 { grid-column: 1 / 3; grid-row: 1 / 3; }
    .eps-poster-collage .eps-item-2 { grid-column: 3; grid-row: 1; }
    .eps-poster-collage .eps-item-3 { grid-column: 1; grid-row: 3; }
    .eps-poster-collage .eps-item-4 { grid-column: 2 / 4; grid-row: 3 / 5; }
    .eps-poster-collage .eps-item-5 { grid-column: 1; grid-row: 4; }
    .eps-poster-collage .eps-item-6 { grid-column: 2; grid-row: 4; }
    .eps-poster-collage .eps-item-7 { grid-column: 3; grid-row: 4; }
    
    .eps-poster-collage .eps-detail-text {
        font-size: 0.8rem;
        -webkit-line-clamp: 2;
    }
    
    .eps-poster-collage .eps-item-1 .eps-detail-text,
    .eps-poster-collage .eps-item-4 .eps-detail-text {
        font-size: 0.9rem;
        -webkit-line-clamp: 3;
    }
}

@media (max-width: 768px) {
    .eps-poster-container {
        margin: 30px 0;
        padding: 30px 0;
    }
    
    .eps-poster-title {
        font-size: 1.8rem;
    }
    
    .eps-poster-description {
        font-size: 1rem;
    }
    
    /* Grid 布局响应式 */
    .eps-poster-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 20px;
    }
    
    .eps-poster-grid .eps-poster-image {
        height: 220px;
    }
    
    /* Masonry 布局响应式 */
    .eps-poster-masonry {
        columns: 1;
    }
    
    /* 拼贴布局响应式 */
    .eps-poster-collage {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(5, 180px);
        height: auto;
        max-height: 900px;
    }
    
    .eps-poster-collage .eps-item-1 { grid-column: 1 / 3; grid-row: 1 / 3; }
    .eps-poster-collage .eps-item-2 { grid-column: 1; grid-row: 3; }
    .eps-poster-collage .eps-item-3 { grid-column: 2; grid-row: 3; }
    .eps-poster-collage .eps-item-4 { grid-column: 1 / 3; grid-row: 4; }
    .eps-poster-collage .eps-item-5 { grid-column: 1; grid-row: 5; }
    .eps-poster-collage .eps-item-6 { grid-column: 2; grid-row: 5; }
    .eps-poster-collage .eps-item-7 { display: none; }
    
    .eps-poster-collage .eps-detail-overlay {
        display: block;
        opacity: 1;
        transform: none;
        padding: 10px;
    }
    
    .eps-poster-collage .eps-detail-text {
        font-size: 0.75rem;
        -webkit-line-clamp: 2;
    }
}

@media (max-width: 576px) {
    .eps-poster-header {
        margin-bottom: 30px;
    }
    
    .eps-poster-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .eps-poster-grid .eps-poster-image {
        height: 250px;
    }
    
    .eps-poster-collage {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(7, 160px);
        max-height: 1120px;
    }
    
    .eps-poster-collage .eps-poster-item {
        grid-column: 1 !important;
        grid-row: auto !important;
    }
    
    .eps-poster-collage .eps-item-7 {
        display: block;
    }
    
    .eps-lightbox-desc {
        font-size: 1rem;
        padding: 15px 0 10px;
    }
    
    .eps-lightbox-close {
        top: 15px;
        right: 15px;
        font-size: 2.2rem;
        width: 45px;
        height: 45px;
    }
    
    .eps-lightbox-nav {
        padding: 0 10px;
    }
    
    .eps-lightbox-prev, 
    .eps-lightbox-next {
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }
}

/* ===== 动画延迟 ===== */
.eps-poster-grid .eps-poster-item:nth-child(1) { animation-delay: 0.1s; }
.eps-poster-grid .eps-poster-item:nth-child(2) { animation-delay: 0.2s; }
.eps-poster-grid .eps-poster-item:nth-child(3) { animation-delay: 0.3s; }
.eps-poster-grid .eps-poster-item:nth-child(4) { animation-delay: 0.4s; }
.eps-poster-grid .eps-poster-item:nth-child(5) { animation-delay: 0.5s; }
.eps-poster-grid .eps-poster-item:nth-child(6) { animation-delay: 0.6s; }

.eps-poster-collage .eps-poster-item:nth-child(1) { animation-delay: 0.1s; }
.eps-poster-collage .eps-poster-item:nth-child(2) { animation-delay: 0.2s; }
.eps-poster-collage .eps-poster-item:nth-child(3) { animation-delay: 0.3s; }
.eps-poster-collage .eps-poster-item:nth-child(4) { animation-delay: 0.4s; }
.eps-poster-collage .eps-poster-item:nth-child(5) { animation-delay: 0.5s; }
.eps-poster-collage .eps-poster-item:nth-child(6) { animation-delay: 0.6s; }
.eps-poster-collage .eps-poster-item:nth-child(7) { animation-delay: 0.7s; }