/* shows.css */
:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --bg-color: #f5f5f5;
    --card-bg: rgba(255, 255, 255, 0.35);
    /* 半透明白色 */
    --text-color: #333;
    --header-height: 60px;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    background-image: url('../images/background1.JPG');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 复用 index.html 的 Header 样式 */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 0 20px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
}

.logo img {
    height: 30px;
    margin-right: 10px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    transition: opacity 0.3s;
    cursor: pointer;
}

nav a:hover {
    opacity: 0.8;
}

/* 主内容区域 */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    flex: 1;
    width: 100%;
}

.page-title-section {
    text-align: center;
    margin-bottom: 40px;
    /* 给标题也加一点毛玻璃背景，防止背景图太花导致文字看不清 */
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(5px);
    padding: 20px;
    border-radius: 12px;
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
}

.page-title {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(255, 255, 255, 0.5);
    /* 文字阴影增强可读性 */
}

.page-subtitle {
    color: #555;
    font-size: 1rem;
}

.controls {
    margin-bottom: 30px;
    text-align: center;
}

.btn-refresh {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s, transform 0.2s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.btn-refresh:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-refresh:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: none;
}

/* 图片网格布局 */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    width: 100%;
}

/* 【核心修改】图片卡片样式 - 毛玻璃效果 */
.image-card {
    /* 半透明背景 */
    background: var(--card-bg);
    /* 关键：背景模糊 */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    /* Safari 支持 */

    border-radius: 16px;
    overflow: hidden;
    /* 柔和的白色边框，增强玻璃质感 */
    border: 1px solid rgba(255, 255, 255, 0.6);
    /* 更自然的阴影 */
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);

    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.image-card:hover {
    transform: translateY(-8px);
    /* 悬停时背景更不透明一点，突出内容 */
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.9);
}

.img-wrapper {
    width: 100%;
    padding-top: 75%;
    /* 4:3 比例 */
    position: relative;
    background-color: rgba(0, 0, 0, 0.05);
    /* 加载前的占位色 */
}

.img-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
    transition: opacity 0.3s;
}

.file-info {
    padding: 15px;
    /* 移除之前的白色背景和边框，让它成为卡片的一部分 */
    background: transparent;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    /* 极淡的分隔线 */
}

.file-name {
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
    /* 深色文字 */
    margin-bottom: 5px;
    word-break: break-all;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-author {
    font-size: 0.85rem;
    color: #666;
    /* 稍深一点的灰色，确保在玻璃背景上可见 */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.like-btn {
    transition: transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 20px;
    background: rgba(0, 0, 0, 0.03);
}

.like-btn:hover {
    transform: scale(1.1);
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
}

.like-btn:active {
    transform: scale(0.95);
}

.loading-tip {
    text-align: center;
    color: #fff;
    /* 在深色背景图上用白色文字，或者加文字阴影 */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    margin-top: 50px;
    font-size: 1.1rem;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 20px;
    border-radius: 20px;
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    display: block;
    width: fit-content;
}

.error-tip {
    text-align: center;
    color: #fff;
    background: rgba(231, 76, 60, 0.9);
    margin-top: 20px;
    padding: 20px;
    border-radius: 8px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    backdrop-filter: blur(5px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .main-container {
        padding: 20px 10px;
    }
}

.video-cover-wrapper {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 保持 4:3 比例，与图片一致 */
    background-color: #222; /* 深色背景 */
    overflow: hidden;
}

/* 确保播放图标居中 */
.video-cover-wrapper img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /* 移除 object-fit，因为这是绝对定位的图标 */
}

/* 确保点赞按钮在视频卡片上也能正常点击 */
.like-btn {
    z-index: 10; /* 确保在最上层 */
    position: relative;
}