:root {
    /* 亮色主题变量 */
    --primary-color: #3498db;
    --primary-hover: #2980b9;
    --secondary-color: #2c3e50;
    --accent-color: #9b59b6;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-secondary: #777777;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --card-padding: 24px;
    --section-spacing: 30px;
    --icon-color: #555;
}

/* 在:root选择器后添加以下辅助类 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.file-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
}

.help-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* 深色主题变量 */
.dark-theme {
    --primary-color: #3498db;
    --primary-hover: #2980b9;
    --secondary-color: #34495e;
    --accent-color: #9b59b6;
    --success-color: #27ae60;
    --danger-color: #c0392b;
    --warning-color: #d35400;
    --light-bg: #1a1f25;
    --card-bg: #222831;
    --text-color: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: #2d3743;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --icon-color: #9e9e9e;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, border-color 0.3s;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: var(--light-bg);
    color: var(--text-color);
    padding: 0;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
.app-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo i {
    font-size: 28px;
}

.logo h1 {
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: -0.5px;
}

/* 主题切换 */
.theme-switch {
    position: relative;
}

#themeToggle {
    display: none;
}

.toggle-btn {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    width: 60px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 0 5px;
    transition: var(--transition);
}

.toggle-btn i {
    font-size: 16px;
    z-index: 2;
    transition: var(--transition);
}

.toggle-btn .fa-sun {
    color: #f1c40f;
}

.toggle-btn .fa-moon {
    color: #ecf0f1;
    transform: translateX(30px);
    opacity: 0;
}

.slider {
    position: absolute;
    left: 5px;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

#themeToggle:checked + .toggle-btn .slider {
    transform: translateX(30px);
}

#themeToggle:checked + .toggle-btn .fa-sun {
    transform: translateX(-30px);
    opacity: 0;
}

#themeToggle:checked + .toggle-btn .fa-moon {
    transform: translateX(0);
    opacity: 1;
}

/* 主容器 */
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--section-spacing);
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
    width: 100%;
    flex: 1;
}

/* 卡片样式 */
.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header i {
    font-size: 24px;
}

.card-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: var(--card-padding);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group label i {
    color: var(--icon-color);
    width: 20px;
    text-align: center;
}

input[type="file"],
input[type="text"],
input[type="number"],
input[type="range"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
}

input[type="file"]:focus,
input[type="text"]:focus,
input[type="number"]:focus,
input[type="range"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
    outline: none;
}

input[type="range"] {
    padding: 0;
    height: 6px;
    -webkit-appearance: none;
    -moz-appearance: none; /* For Firefox */
    appearance: none; /* Standard property */
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    background: var(--primary-hover);
}

/* 按钮样式 */
button {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #34495e;
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #27ae60;
    transform: translateY(-2px);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
}

.btn-icon {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    padding: 10px 15px;
}

.btn-icon:hover {
    background-color: rgba(52, 152, 219, 0.1);
    transform: translateY(-2px);
}

/* 效果按钮 */
.effect-button {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    border: none;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.9rem;
    margin: 5px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.effect-button:hover {
    background-color: rgba(52, 152, 219, 0.2);
    transform: translateY(-2px);
}

.effect-button.active {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

/* 图片画廊 */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin: 20px 0;
    min-height: 200px;
    align-items: center;
}

.image-gallery .loading {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 20px;
}

.image-gallery img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
}

.image-gallery img:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

/* 图片详情 */
.image-detail-viewer {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.detail-image-container {
    background-color: var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.detail-image-container img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.detail-info {
    background-color: rgba(52, 152, 219, 0.05);
    border-radius: 8px;
    padding: 15px;
    border: 1px solid rgba(52, 152, 219, 0.1);
}

.detail-info p {
    margin: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-info i {
    color: var(--primary-color);
    width: 20px;
}

/* 图片编辑器 */
.image-editor {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
}

.image-preview {
    flex: 1;
    min-width: 300px;
}

.image-preview h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.preview-container {
    background-color: var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.preview-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* 控制组样式 */
.controls {
    margin: 20px 0;
}

.section {
    margin: 25px 0;
    padding: 20px;
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
}

.section h3 {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.control-group {
    margin-bottom: 15px;
}

.control-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.effect-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.effect-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
}

.color-replace {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: end;
}

.color-input {
    display: flex;
    flex-direction: column;
}

.transform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.transform-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.crop-inputs, .crop-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.quality-group, .dpr-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toggle-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 5px;
}

.face-buttons {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.editor-controls {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* 文件夹导航 */
.folder-navigation {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.folder-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.folder-controls {
    display: flex;
    gap: 10px;
}

.folder-controls input {
    min-width: 200px;
}

.tag-search {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.search-group {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0 15px;
}

.search-group i {
    color: var(--icon-color);
}

.search-group input {
    border: none;
    padding: 12px 0;
    flex: 1;
    background: transparent;
}

/* 结果容器 */
.result-container {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    background-color: rgba(52, 152, 219, 0.05);
    border: 1px solid rgba(52, 152, 219, 0.1);
    color: var(--text-color);
}

/* 页脚样式 */
.app-footer {
    text-align: center;
    padding: 20px;
    background-color: var(--card-bg);
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 30px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .image-editor {
        flex-direction: column;
    }
    
    .folder-navigation {
        flex-direction: column;
    }
    
    .editor-controls {
        flex-direction: column;
    }
    
    .transform-grid, .control-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 模态框样式 */
.modal {
    display: none; /* 默认隐藏 */
    position: fixed; /* 固定定位 */
    z-index: 1000; /* 确保在最上层 */
    left: 0;
    top: 0;
    width: 100%; /* 全屏 */
    height: 100%; /* 全屏 */
    overflow: auto; /* 允许滚动 */
    background-color: rgba(0, 0, 0, 0.7); /* 半透明黑色背景 */
    justify-content: center;
    align-items: center;
    padding: 20px; /* 内边距，防止内容紧贴边缘 */
}

.modal-content {
    background-color: var(--card-bg);
    margin: auto;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
    width: 90%; /* 宽度 */
    max-width: 800px; /* 最大宽度 */
    animation: fadeIn 0.3s ease-out; /* 淡入动画 */
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.close-button {
    color: var(--text-secondary);
    font-size: 30px;
    font-weight: bold;
    position: absolute;
    top: 10px;
    right: 20px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-button:hover,
.close-button:focus {
    color: var(--danger-color);
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-align: center;
}

.modal-image-container {
    background-color: var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    max-height: 60vh; /* 限制图片容器高度 */
    margin-bottom: 20px;
}

.modal-image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block; /* 移除图片底部空白 */
}

.modal-info {
    background-color: rgba(52, 152, 219, 0.05);
    border-radius: 8px;
    padding: 15px;
    border: 1px solid rgba(52, 152, 219, 0.1);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.modal-info p {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    word-break: break-all; /* 允许长单词换行 */
}

.modal-info i {
    color: var(--primary-color);
    width: 20px;
    flex-shrink: 0; /* 防止图标被压缩 */
}

.modal-info a {
    color: var(--primary-color);
    text-decoration: none;
    word-break: break-all;
}

.modal-info a:hover {
    text-decoration: underline;
}

.copy-button, .open-link-button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-left: auto; /* 将按钮推到右侧 */
    flex-shrink: 0; /* 防止按钮被压缩 */
}

.copy-button:hover, .open-link-button:hover {
    background-color: #34495e;
}

/* 响应式调整 */
@media (max-width: 600px) {
    .modal-content {
        width: 95%;
        padding: 15px;
    }
    .modal-title {
        font-size: 1.5rem;
    }
    .close-button {
        font-size: 24px;
        top: 5px;
        right: 10px;
    }
    .modal-info p {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    .copy-button, .open-link-button {
        margin-left: 0; /* 在小屏幕上取消右侧对齐 */
        width: 100%; /* 按钮占满宽度 */
    }
}

/* 模态框操作按钮 */
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}