/* ===== 全局基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 柔和的紫色系 */
    --primary-color: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    /* 中性色 */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    /* 功能色 */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: 5px;
    transition: background-color 0.3s ease;
    direction: ltr;  /* 确保整个页面是从左到右 */
    writing-mode: horizontal-tb;  /* 确保文字是从上到下 */
}

.container {
    max-width: 100%;
    margin: 0 auto;
    height:100px;
    padding: 0;
}

/* ===== 登录页面 ===== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: -16px;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--border-color);
    animation: slideUp 0.4s ease-out;
}

/* 标签页样式 */
.tab-container {
    margin-bottom: var(--spacing-lg);
}

.tab-buttons {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 输入组样式 */
.input-group {
    display: flex;
    gap: var(--spacing-xs);
}

.input-group .form-control {
    flex: 1;
}

.input-group .btn {
    white-space: nowrap;
    padding: 0 var(--spacing-md);
}

/* ===== 登录页面 ===== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: -16px;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--border-color);
    animation: slideUp 0.4s ease-out;
}

/* 标签页样式 */
.tab-container {
    margin-bottom: var(--spacing-lg);
}

.tab-buttons {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 输入组样式 */
.input-group {
    display: flex;
    gap: var(--spacing-xs);
}

.input-group .form-control {
    flex: 1;
}

.input-group .btn {
    white-space: nowrap;
    padding: 0 var(--spacing-md);
}

/* ===== 登录页面 ===== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: -16px;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--border-color);
    animation: slideUp 0.4s ease-out;
}

/* 标签页样式 */
.tab-container {
    margin-bottom: var(--spacing-lg);
}

.tab-buttons {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 输入组样式 */
.input-group {
    display: flex;
    gap: var(--spacing-xs);
}

.input-group .form-control {
    flex: 1;
}

.input-group .btn {
    white-space: nowrap;
    padding: 0 var(--spacing-md);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

    .login-header h1 {
        color: var(--primary-color);
        font-size: 1.875rem;
        font-weight: 700;
        margin-bottom: var(--spacing-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-sm);
    }

        .login-header h1 i {
            font-size: 2rem;
        }

    .login-header p {
        color: var(--text-secondary);
        font-size: 0.875rem;
        line-height: 1.5;
    }

/* ===== 表单样式 ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

    .form-group label {
        display: block;
        margin-bottom: var(--spacing-xs);
        color: var(--text-primary);
        font-weight: 600;
        font-size: 0.875rem;
    }

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    background: var(--bg-main);
    color: var(--text-primary);
}

    .form-control:hover {
        border-color: var(--primary-light);
    }

    .form-control:focus {
        outline: none;
        border-color: var(--primary-color);
        background: var(--bg-card);
        box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    }

    .form-control::placeholder {
        color: var(--text-muted);
    }

/* ===== 按钮样式 ===== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

    .btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    .btn:active {
        transform: translateY(0);
    }

    .btn:disabled {
        opacity: 0.6;
        cursor: not-allowed;
        transform: none;
    }

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

    .btn-primary:hover {
        box-shadow: 0 8px 16px -4px rgba(99, 102, 241, 0.4);
    }

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: none;
}

    .btn-secondary:hover {
        background: var(--bg-main);
        border-color: var(--primary-color);
        color: var(--primary-color);
    }

.btn-block {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* ===== 警告提示 ===== */
.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

.alert-error {
    background: #fef2f2;
    color: var(--error-color);
    border-color: var(--error-color);
}

.alert-success {
    background: #f0fdf4;
    color: var(--success-color);
    border-color: var(--success-color);
}

/* ===== 头部导航 ===== */
.header {
    background: var(--bg-card);
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 5px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    /*flex-wrap: wrap;*/
    gap: var(--spacing-md);
}

    .header h1 {
        color: var(--text-primary);
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0;
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }

        .header h1 i {
            color: var(--primary-color);
            font-size: 1.625rem;
        }

.header-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex: 1;
    justify-content: center;
    margin-top: -20px;
    padding: 5px;
}

.header-user {
    
    gap: var(--spacing-sm);
    align-items: center;
}

    .header-user span {
        color: var(--primary-color);
        font-weight: 600;
        font-size: 1rem;
        padding: var(--spacing-xs) var(--spacing-md);
        background: var(--bg-main);
        border-radius: var(--radius-md);
        white-space: nowrap;
    }

        .header-user span i {
            margin-right: 6px;
        }

.header-user-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===== 导航标签 ===== */
.nav-tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-main);
    padding: 4px;
    border-radius: var(--radius-md);
}

.nav-tab {
    padding: var(--spacing-xs) var(--spacing-md);
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
}

    .nav-tab:hover {
        color: var(--primary-color);
        background: rgba(99, 102, 241, 0.1);
    }

    .nav-tab.active {
        background: white;
        color: var(--primary-color);
        box-shadow: var(--shadow-sm);
    }

    .nav-tab i {
        font-size: 1rem;
    }

    .nav-tab span {
        display: inline;
    }

/* ===== 卡片样式 ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: 5px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: box-shadow 0.3s ease;
}

    .card:hover {
        box-shadow: var(--shadow-lg);
    }

    .card h2 {
        color: var(--text-primary);
        font-size: 1.25rem;
        margin-bottom: 5px;
        font-weight: 700;
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        padding-bottom: 5px;
        border-bottom: 2px solid var(--border-color);
    }

        .card h2 i {
            color: var(--primary-color);
        }

/* ===== 模式内容 ===== */
.mode-content {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* ===== 图片上传区域 ===== */
.image-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-main);
}

    .image-upload-area:hover {
        border-color: var(--primary-color);
        background: rgba(99, 102, 241, 0.05);
        transform: translateY(-2px);
    }

    .image-upload-area i {
        font-size: 3rem;
        color: var(--primary-light);
        margin-bottom: var(--spacing-sm);
        display: block;
    }

    .image-upload-area p {
        color: var(--text-secondary);
        margin: var(--spacing-xs) 0;
    }

        .image-upload-area p:first-of-type {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1rem;
        }

.image-preview {
    max-width: 100%;
    margin-top: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
}

/* ===== 多图片预览 ===== */
.image-preview-container {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    overflow-x: auto;
    padding: var(--spacing-sm) 0;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) var(--bg-main);
}

    .image-preview-container::-webkit-scrollbar {
        height: 8px;
    }

    .image-preview-container::-webkit-scrollbar-track {
        background: var(--bg-main);
        border-radius: 4px;
    }

    .image-preview-container::-webkit-scrollbar-thumb {
        background: var(--primary-light);
        border-radius: 4px;
    }

.image-preview-item {
    position: relative;
    flex-shrink: 0;
}

    .image-preview-item img {
        height: 160px;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-md);
        object-fit: cover;
        border: 2px solid var(--border-color);
        transition: transform 0.2s ease;
    }

        .image-preview-item img:hover {
            transform: scale(1.05);
        }

    .image-preview-item .remove-btn {
        position: absolute;
        top: -8px;
        right: -8px;
        width: 28px;
        height: 28px;
        background: var(--error-color);
        color: white;
        border-radius: 50%;
        border: 3px solid white;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        box-shadow: var(--shadow-md);
        transition: all 0.2s ease;
    }

        .image-preview-item .remove-btn:hover {
            background: #dc2626;
            transform: scale(1.1);
        }

/* ===== 加载动画 ===== */
.loading {
    display: none;
    text-align: center;
    padding: var(--spacing-xl);
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.progress-bar-container {
    width: 100%;
    max-width: 400px;
    height: 8px;
    background-color: var(--bg-main);
    border-radius: 999px;
    margin: 0 auto var(--spacing-md);
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 999px;
    transition: width 0.5s ease-in-out;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

#loadingStatusText {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

#progressText {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===== 历史记录画廊 ===== */
.history-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.gallery-item {
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

    .gallery-item:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-xl);
    }

    .gallery-item img {
        width: 100%;
        height: 220px;
        object-fit: contain;
        background-color: white;
        border-bottom: 1px solid var(--border-color);
    }

.gallery-info {
    padding: var(--spacing-md);
}

/* 图片加载容器样式 */
.gallery-image-container {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 图片加载占位符样式 */
.image-loading-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-main);
    z-index: 1;
    transition: all 0.3s ease;
}

.image-loading-placeholder.has-shimmer {
    background: linear-gradient(90deg, var(--bg-main) 0%, #f1f3f4 50%, var(--bg-main) 100%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s ease-in-out infinite;
}

/* 加载动画效果 */
@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* 懒加载图片淡入效果 */
.gallery-image-lazy {
    transition: opacity 0.3s ease-in-out;
}

.gallery-image-lazy[loading="lazy"] {
    opacity: 0;
}

.gallery-image-lazy:not([loading]) {
    opacity: 1;
}

.gallery-prompt {
    font-size: 0.875rem;
    color: var(--text-primary);
    line-height: 1.5;
    max-height: 42px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: var(--spacing-sm);
}

.gallery-info > div {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

    .gallery-info > div > div {
        font-size: 0.8125rem;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 6px;
    }

        .gallery-info > div > div i {
            color: var(--primary-light);
        }

.gallery-actions,
.task-actions-modern {
    display: flex !important;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    flex-direction: row !important;
    flex-wrap: nowrap !important;
}

    .gallery-actions .btn,
    .task-actions-modern .action-btn {
        flex: 1;
        font-size: 0.8125rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

/* ===== 绘图容器布局 ===== */
@media (min-width: 1024px) {
    .drawing-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .card.fixed-height {
        height: calc(100vh - 120px);
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

        .card.fixed-height .card-content {
            flex: 1;
            overflow-y: auto;
            padding-right: var(--spacing-sm);
        }

            .card.fixed-height .card-content::-webkit-scrollbar {
                width: 6px;
            }

            .card.fixed-height .card-content::-webkit-scrollbar-track {
                background: var(--bg-main);
                border-radius: 3px;
            }

            .card.fixed-height .card-content::-webkit-scrollbar-thumb {
                background: var(--primary-light);
                border-radius: 3px;
            }
}

/* ===== 选择框样式 ===== */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%236366f1' d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-sm) center;
    background-size: 16px;
    padding-right: var(--spacing-xl);
    cursor: pointer;
}

/* ===== 文本域样式 ===== */
textarea.form-control {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
    line-height: 1.6;
}

/* ===== 图片比例设置样式 ===== */
.aspect-ratio-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.aspect-ratio-preset {
    width: 100%;
}

.aspect-ratio-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.aspect-ratio-inputs:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.aspect-ratio-inputs .form-control {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: center;
    font-weight: 600;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.aspect-ratio-separator {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    padding: 0 var(--spacing-xs);
    flex-shrink: 0;
}

/* 移动端优化 */
@media (max-width: 767px) {
    .aspect-ratio-inputs {
        gap: 8px;
        padding: 10px;
    }
    
    .aspect-ratio-inputs .form-control {
        font-size: 16px;
        padding: 12px;
    }
    
    .aspect-ratio-separator {
        font-size: 1.125rem;
    }
}

/* ===== 提示词模板 ===== */
.prompt-templates {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.prompt-template {
    background: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

    .prompt-template:hover {
        border-color: var(--primary-color);
        background: rgba(99, 102, 241, 0.05);
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
    }

    .prompt-template h4 {
        color: var(--primary-color);
        font-size: 0.9375rem;
        margin-bottom: var(--spacing-xs);
        font-weight: 600;
        padding-right: 30px;
    }

    .prompt-template p {
        color: var(--text-secondary);
        font-size: 0.8125rem;
        margin: 0;
        line-height: 1.5;
    }

    .prompt-template .delete-btn {
        position: absolute;
        top: var(--spacing-xs);
        right: var(--spacing-xs);
        width: 28px;
        height: 28px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        cursor: pointer;
        border-radius: 50%;
        transition: all 0.2s ease;
        z-index: 10;
    }

        .prompt-template .delete-btn:hover {
            background: var(--error-color);
            color: white;
        }

/* ===== 模式网格布局 ===== */
.mode-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

    .mode-grid .nav-tab {
        margin: 0;
        width: 100%;
        text-align: left;
        padding: var(--spacing-md);
        border: 2px solid var(--border-color);
        background: var(--bg-main);
        border-radius: var(--radius-md);
        font-size: 0.875rem;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-sm);
    }

        .mode-grid .nav-tab i {
            font-size: 1.25rem;
        }

        .mode-grid .nav-tab span {
            display: inline;
        }

        .mode-grid .nav-tab:hover {
            border-color: var(--primary-color);
        }

        .mode-grid .nav-tab.active {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            border-color: transparent;
        }

/* ===== 设置网格 ===== */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* ===== 响应式设计 - 平板 ===== */
@media (max-width: 1023px) and (min-width: 768px) {
    .header {
        padding: var(--spacing-md);
    }

        .header h1 {
            font-size: 1.375rem;
        }

    .history-gallery {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

/* ===== 响应式设计 - 移动端 ===== */
@media (max-width: 767px) {
    body {
        padding: 5px;
    }

    .container {
        padding: 0;
    }

    /* 头部优化 - 保持在一行 */
    .header {
        padding: 8px 12px;
        margin-bottom: 5px;
        gap: var(--spacing-sm);
    }

        .header h1 {
            font-size: 1rem;
            flex-shrink: 0;
        }

            .header h1 i {
                font-size: 1.125rem;
            }

    .header-actions {
        flex: 0 1 auto;
        min-width: 0;
    }

    .header-user {
        flex-shrink: 0;
        flex-direction: column;
        gap: 6px;
        align-items: flex-end;
    }

        .header-user span {
            padding: 6px 10px;
            font-size: 0.875rem;
        }

    .header-user-actions {
        gap: 6px;
    }

        .header-user-actions .btn {
            padding: 6px 10px;
            font-size: 0.75rem;
        }

            .header-user-actions .btn .btn-text {
                display: none;
            }

            .header-user-actions .btn i {
                margin: 0;
            }

    /* 导航标签优化 - 横向布局，图标在前 */
    .nav-tabs {
        width: 100%;
        padding: 4px;
        gap: 4px;
    }

    .nav-tab {
        flex: 1;
        padding: 8px 6px;
        font-size: 0.75rem;
        flex-direction: row;
        gap: 4px;
        justify-content: center;
    }

        .nav-tab i {
            font-size: 1rem;
        }

        .nav-tab span {
            display: inline;
        }

    /* 模式网格优化 - 横向布局，图标在前 */
    .mode-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

        .mode-grid .nav-tab {
            padding: 10px 8px;
            font-size: 0.75rem;
            flex-direction: row;
            justify-content: flex-start;
            gap: 6px;
        }

            .mode-grid .nav-tab i {
                font-size: 1.125rem;
            }

            .mode-grid .nav-tab span {
                display: inline;
            }

    /* 历史记录优化 */
    .history-gallery {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* 卡片优化 */
    .card {
        padding: 12px;
        margin-bottom: 5px;
        border-radius: var(--radius-md);
    }

        .card h2 {
            font-size: 1rem;
            margin-bottom: 5px;
            padding-bottom: 5px;
        }

    /* 按钮优化 */
    .btn {
        padding: 10px var(--spacing-md);
        font-size: 0.875rem;
    }

    /* 表单优化 */
    .form-group {
        margin-bottom: var(--spacing-md);
    }

        .form-group label {
            font-size: 0.8125rem;
            margin-bottom: 8px;
        }

    .form-control {
        font-size: 16px;
        padding: 12px;
    }

    textarea.form-control {
        min-height: 90px;
    }

    /* 登录卡片优化 */
    .login-card {
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg);
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    /* 提示词模板优化 - 移动端隐藏 */
    .template-section {
        display: none;
    }

    /* 设置网格优化 */
    .settings-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* 图片预览优化 */
    .image-preview-item img {
        height: 120px;
    }

    .image-upload-area {
        padding: var(--spacing-lg);
    }

        .image-upload-area i {
            font-size: 2.5rem;
        }

        .image-upload-area p {
            font-size: 0.875rem;
        }

    /* 画廊操作按钮优化 */
    .gallery-actions {
        flex-direction: row;
        flex-wrap: nowrap;
        gap: var(--spacing-xs);
    }

        .gallery-actions .btn {
            flex: 1;
            min-width: 60px;
            padding: var(--spacing-xs) var(--spacing-xs);
            font-size: 0.75rem;
            white-space: nowrap;
        }

/* ===== 骨架屏加载效果 ===== */
.skeleton-item {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    animation: none;
}

.skeleton-image {
    width: 100%;
    height: 220px;
    background: #e9ecef;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.skeleton-text {
    background: #e9ecef;
    border-radius: 4px;
    margin-bottom: 8px;
}

.skeleton-text-title {
    height: 16px;
    width: 85%;
    margin-bottom: 10px;
}

.skeleton-text-meta {
    height: 12px;
    width: 60%;
    margin-bottom: 6px;
}

.skeleton-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.skeleton-button {
    height: 28px;
    width: 60px;
    background: #e9ecef;
    border-radius: var(--radius-sm);
    flex: 1;
}

.skeleton-shimmer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(255,255,255,0) 0%, 
        rgba(255,255,255,0.3) 50%, 
        rgba(255,255,255,0) 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

    /* 顶部按钮组优化 */
    .card > div:first-child {
        /*flex-direction: column;*/
        gap: var(--spacing-sm);
    }

        .card > div:first-child h2 {
            width: 100%;
            text-align: center;
        }

        .card > div:first-child .btn {
            width: 100%;
        }

    /* 空状态优化 */
    .empty-state {
        padding: var(--spacing-xl) var(--spacing-md);
    }

        .empty-state i {
            font-size: 3rem;
        }

        .empty-state p {
            font-size: 0.875rem;
        }

    /* 加载状态优化 */
    .loading {
        padding: var(--spacing-lg);
    }

    #loadingStatusText {
        font-size: 1rem;
    }

    .spinner {
        width: 40px;
        height: 40px;
    }
}

/* ===== 超小屏幕优化（<375px）===== */
@media (max-width: 374px) {
    body {
        padding: 5px;
    }

    .header {
        padding: 8px 12px;
    }

        .header h1 {
            font-size: 0.875rem;
        }

            .header h1 i {
                font-size: 1rem;
            }

    .header-user span {
        font-size: 0.75rem;
        padding: 4px 8px;
    }

    .header-user-actions .btn {
        padding: 4px 8px;
        font-size: 0.7rem;
    }

    .card {
        padding: 12px;
    }

    .nav-tab {
        font-size: 0.7rem;
        padding: 6px 4px;
    }

        .nav-tab i {
            font-size: 0.875rem;
        }

    .mode-grid .nav-tab {
        padding: 8px 6px;
        font-size: 0.7rem;
    }

        .mode-grid .nav-tab i {
            font-size: 1rem;
        }

    .btn {
        padding: 10px 12px;
        font-size: 0.8125rem;
    }

    .template-buttons {
        grid-template-columns: repeat(2, 1fr);
    }

        .template-buttons .btn {
            font-size: 0.7rem;
            padding: 8px 6px;
        }
}

/* ===== 辅助类 ===== */
.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-xs);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-3 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--spacing-xs);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-3 {
    margin-top: var(--spacing-md);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

/* ===== 空状态样式 ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

    .empty-state i {
        font-size: 4rem;
        margin-bottom: var(--spacing-md);
        color: var(--primary-light);
        opacity: 0.5;
    }

    .empty-state p {
        font-size: 1rem;
        color: var(--text-secondary);
    }

/* ===== 动画优化 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== 触摸优化 ===== */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
    }

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

    .nav-tab:hover {
        background: transparent;
    }

    .nav-tab:active {
        opacity: 0.7;
    }

    .prompt-template:hover {
        transform: none;
    }

    .prompt-template:active {
        transform: scale(0.98);
    }
}

/* ===== 后台管理界面样式 ===== */
.admin-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
    margin: 0;
    color: var(--text-primary);
}

.admin-user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-soft);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.stat-card {
    background: var(--bg-main);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 10px 0;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--bg-main);
    font-weight: 600;
}

tbody tr:hover {
    background-color: var(--bg-main);
}

.btn-group {
    display: flex;
    gap: 10px;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
}

.badge-success {
    background-color: #d4edda;
    color: #155724;
}

.badge-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.badge-warning {
    background-color: #fff3cd;
    color: #856404;
}

.badge-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* 管理员登录页面 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-soft);
    width: 100%;
    max-width: 400px;
}

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

.login-header h1 {
    margin: 0 0 10px 0;
    color: var(--text-primary);
    font-size: 1.8rem;
}

.login-header h1 i {
    color: var(--primary-color);
}

.login-header p {
    color: var(--text-secondary);
    margin: 0;
}

/* ===== 图片模态框样式 ===== */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.close-btn {
    position: absolute;
    top: -40px;
    right: -40px;
    color: white;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-actions {
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.modal-actions .btn {
    min-width: 120px;
}

/* ===== 分页控件样式 ===== */
.pagination-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.pagination .btn {
    min-width: 40px;
    height: 40px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.pagination .btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pagination .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

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

.pagination .btn.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.pagination span {
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 0 var(--spacing-xs);
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .admin-container {
        padding: 10px;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .admin-user-info {
        width: 100%;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .login-card {
        padding: 20px;
    }
    
    .admin-content {
        padding: 20px;
    }

    /* 图片模态框移动端优化 */
    .image-modal {
        padding: var(--spacing-md);
    }

    .modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }

    .close-btn {
        top: -35px;
        right: 0;
        width: 35px;
        height: 35px;
        font-size: 24px;
    }

    .modal-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .modal-actions .btn {
        width: 100%;
        max-width: 200px;
    }

    /* 分页控件移动端优化 */
    .pagination {
        gap: 4px;
    }

    .pagination .btn {
        min-width: 36px;
        height: 36px;
        padding: var(--spacing-xs) 8px;
        font-size: 0.8125rem;
    }

    .pagination .btn i {
        font-size: 0.75rem;
    }

    .pagination-info {
        font-size: 0.8125rem;
        margin-top: 8px;
    }
}