* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: #f5f5f5;
}

.navbar {
    background-color: #ffffff;
    padding: 1.5rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar h1 {
    color: #333; 
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 0.5px;
}

/* 修改 dark mode 按钮样式 */
#dark-mode-toggle {
    padding: 8px 16px;
    border-radius: 20px;
    border: 2px solid #333;
    background-color: transparent;
    color: #333;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

#dark-mode-toggle:hover {
    background-color: #333;
    color: #fff;
}

#dark-mode-toggle::before {
    content: '🌞';
    font-size: 1.1rem;
}

/* Dark mode 样式 */
body.dark-mode .navbar {
    background-color: #1a1a1a;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

body.dark-mode .navbar h1 {
    color: #ffffff;
}

body.dark-mode #dark-mode-toggle {
    border-color: #ffffff;
    color: #ffffff;
}

body.dark-mode #dark-mode-toggle:hover {
    background-color: #ffffff;
    color: #1a1a1a;
}

body.dark-mode #dark-mode-toggle::before {
    content: '🌙';
}

.navbar {
    background-color: #ffffff;
    padding: 1.5rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar h1 {
    color: #333;
    font-weight: 500;
    font-size: 1.5rem;
}

.gallery-container {
    max-width: 1200px;
    margin: 100px auto 40px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.gallery-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.preview {
    width: 100%;
    height: 200px;
    background: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #eee;
}

.preview svg {
    max-width: 90%;
    max-height: 90%;
}

.item-info {
    padding: 16px;
}

.item-title {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 8px;
    font-weight: 500;
}

.item-description {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 16px;
    line-height: 1.4;
}

.view-button {
    display: inline-block;
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.view-button:hover {
    background-color: #45a049;
}

@media (max-width: 768px) {
    .gallery-container {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 16px;
        margin-top: 80px;
    }
}

.preview {
    width: 100%;
    height: 250px;
    background: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #eee;
    overflow: hidden;
}

.preview svg {
    max-width: 100%;
    max-height: 100%;
    transition: transform 0.3s;
}

/* 添加开关按钮样式 */
.theme-switch {
    position: absolute;
    right: 10px;
    top: 10px;
    width: 40px;
    height: 20px;
    background: #ccc;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.theme-switch::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: white;
    top: 1px;
    left: 1px;
    transition: transform 0.3s;
}

/* 添加暗色模式相关样式 */
/* .gallery-item.dark-mode {
    background: #222;
} */

/* .gallery-item .preview {
    background: #333;
} */

/* .gallery-item.dark-mode .item-title {
    color: #fff;
} */

.gallery-item.dark-mode .preview {
    background: #333;
}

/* .gallery-item.dark-mode .item-title {
    color: #fff;
} */

.gallery-item:hover .preview svg {
    transform: scale(1.05);
}

.gallery-item.dark-mode .theme-switch {
    background: #4CAF50;
}

.gallery-item.dark-mode .theme-switch::after {
    transform: translateX(20px);
}

.gallery-item {
    position: relative;
    /* 为开关按钮定位 */
}

#dark-mode-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: auto;
    transition: transform 0.3s;
}

body.dark-mode {
    background-color: #1e1e1e;
    color: #e0e0e0;
}

.dark-mode .navbar {
    background-color: #333;
    color: #e0e0e0;
}

.dark-mode .gallery-item {
    background: #2c2c2c;
    box-shadow: 0 4px 6px rgba(255, 255, 255, 0.1);
}

.dark-mode .preview {
    background: #444;
}

.dark-mode .item-title {
    color: #e0e0e0;
}

.dark-mode .item-description {
    color: #bbb;
}

.dark-mode .view-button {
    background-color: #666;
}

.dark-mode .view-button:hover {
    background-color: #555;
}

.preview img {
    display: block !important;
    width: 100%;
    height: auto;
}