:root {
    --primary-color: #00bcd4;
    --secondary-color: #aaa;
    --background-color: #1f1f1f;
    --surface-color: #2a2a2a;
    --text-color: #eee;
    --border-color: #444;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --folder-color: #f0ad4e;
}

/* 顶部固定条（透明） */
#main-header {
    display: flex;
    justify-content: space-between; /* 左右分布 */
    align-items: center;
    padding: 5px 40px; /* 增加左右内边距，让内容更集中 */
    background-color: transparent;
    color: #ffffff;
    box-shadow: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 50px;
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.container {
    margin-top: 50px;
}

/* 左侧标题容器 */
.header-left {
    display: flex;
    align-items: center;
    height: 100%;
    margin-left: 10px; /* 增加左边距，向右移动 */
}

/* 左侧标题 */
.header-left .app-title {
    font-size: 1.5rem;
    font-weight: bold;
    /* margin-left: 0.5cm; */

    line-height: 1; /* 设置行高为1避免额外高度 */
}

/* 右侧容器 */
.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-right: 10px; /* 增加右边距，向左移动 */
}

/* === X豆显示样式 === */
.x-beans-display {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.x-beans-display:hover {
    border-color: rgba(255, 255, 255, 0.5);
}

.x-beans-icon {
    font-size: 18px;
    filter: sepia(100%) saturate(500%) brightness(120%) hue-rotate(10deg);
}

.x-beans-count {
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    min-width: 20px;
    text-align: center;
}

/* X豆充值记录弹窗 */
.x-beans-records-popup {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 180px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    padding: 8px;
    display: none;
    animation: dropdownFadeIn 0.2s ease-out;
}

.x-beans-records-popup.show {
    display: block;
}

.view-records-button {
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    color: var(--text-color);
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background 0.2s, color 0.2s;
}

.view-records-button:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.view-records-button:active {
    background: rgba(255, 255, 255, 0.1);
}

.view-records-button .icon {
    font-size: 16px;
    filter: sepia(100%) saturate(500%) brightness(150%) hue-rotate(10deg);
}

/* 充值记录全屏模态框 */
.recharge-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s;
}

.recharge-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.recharge-modal-content {
    background: var(--surface-color);
    border-radius: 12px;
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    animation: slideIn 0.3s;
    border: 1px solid var(--border-color);
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.recharge-modal-header {
    padding: 20px 24px;
    background: transparent;
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.recharge-modal-header h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
}

.close-recharge-modal {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 32px;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
}

.close-recharge-modal:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.recharge-modal-body {
    padding: 24px;
    max-height: calc(85vh - 100px);
    overflow-y: auto;
    background: var(--background-color);
}

.recharge-modal-body::-webkit-scrollbar {
    width: 8px;
}

.recharge-modal-body::-webkit-scrollbar-track {
    background: var(--surface-color);
}

.recharge-modal-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.recharge-modal-body::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.recharge-record-item {
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 12px;
    background: var(--surface-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.recharge-record-item:last-child {
    margin-bottom: 0;
}

.recharge-record-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.recharge-record-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.recharge-type-badge {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 600;
}

.badge-registration {
    background: rgba(33, 150, 243, 0.2);
    color: #42a5f5;
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.badge-admin {
    background: rgba(156, 39, 176, 0.2);
    color: #ab47bc;
    border: 1px solid rgba(156, 39, 176, 0.3);
}

.badge-user {
    background: rgba(76, 175, 80, 0.2);
    color: #66bb6a;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.recharge-amount {
    font-size: 22px;
    font-weight: 700;
    color: #4caf50;
}

.recharge-amount::before {
    content: '+';
}

.recharge-desc {
    color: var(--secondary-color);
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.5;
}

.recharge-time {
    color: var(--secondary-color);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.recharge-time::before {
    content: '🕐';
    font-size: 14px;
}

.recharge-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--secondary-color);
}

.recharge-empty::before {
    content: '📭';
    display: block;
    font-size: 48px;
    margin-bottom: 16px;
}

.recharge-loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-color);
}

.recharge-loading::before {
    content: '⏳';
    display: block;
    font-size: 48px;
    margin-bottom: 16px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* === 用户头像和下拉菜单样式 === */

.user-avatar-container {
    position: relative;
    display: inline-block;
    margin-right: 10px; /* 额外向左移动 */
}

@media (max-width: 1200px) {
    #main-header {
        padding: 5px 30px;
    }

    .header-left {
        margin-left: 15px;
    }

    .header-right {
        margin-right: 15px;
    }
}

@media (max-width: 768px) {
    #main-header {
        padding: 5px 20px;
    }

    .header-left {
        margin-left: 10px;
    }

    .header-logo {
        margin-left: 5px;
        padding: 6px 12px;
    }

    .header-right {
        margin-right: 10px;
    }

    .user-avatar-container {
        margin-right: 5px;
    }
}

@media (max-width: 480px) {
    #main-header {
        padding: 5px 15px;
    }

    .header-left {
        margin-left: 5px;
    }

    .header-right {
        margin-right: 5px;
    }

    .header-logo {
        margin-left: 0;
        padding: 4px 8px;
    }
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #0097a7);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.user-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.4);
}

.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    min-width: 240px;
    z-index: 1000;
    animation: dropdownFadeIn 0.2s ease-out;
    backdrop-filter: blur(10px);
}

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

/* 下拉菜单用户信息区域 */
.dropdown-user-info {
    display: flex;
    align-items: center;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
}

.user-avatar-small {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #0097a7);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 700;
    color: var(--text-color);
    font-size: 18px;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-roles {
    color: var(--secondary-color);
    font-size: 14px;  /* 从12px增加到14px */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500; /* 添加中等字重，更清晰 */
}

/*!* 下拉菜单分隔线 *!*/
/*.dropdown-divider {*/
/*    height: 1px;*/
/*    background: var(--border-color);*/
/*    margin: 8px 0;*/
/*}*/

/* 确保下拉菜单在移动端也有良好表现 */
@media (max-width: 768px) {
    .user-avatar {
        width: 34px;  /* 相应调整移动端尺寸 */
        height: 34px;
        font-size: 16px;
    }

    .user-dropdown-menu {
        min-width: 220px; /* 移动端稍微减小 */
        right: -10px;
    }

    .dropdown-user-info {
        padding: 16px; /* 移动端稍小一点 */
    }

    .user-avatar-small {
        width: 42px;  /* 移动端稍小一点 */
        height: 42px;
        font-size: 18px;
    }

    .user-name {
        font-size: 16px;
    }

    .user-roles {
        font-size: 13px;
    }
}

/* 可选：为头像添加更明显的点击反馈 */
.user-avatar:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

/* 可选：为下拉菜单添加更明显的边框 */
.user-dropdown-menu {
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* === 退出登录按钮样式 === */

.dropdown-logout-btn {
    width: 100%;
    padding: 14px 20px;
    background: transparent;
    border: none;
    color: var(--text-color);
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 17px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    border-top: 1px solid var(--border-color); /* 与上方内容分隔 */
}

.dropdown-logout-btn:hover {
    background: rgba(0, 188, 212, 0.1);
    color: var(--primary-color);
    padding-left: 22px; /* 悬停时向右移动，创造动画效果 */
}

.dropdown-logout-btn::before {
    content: "╳"; /* 艺术体X */
    font-size: 16px;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    /*background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(192, 57, 43, 0.15));*/
    /*border: 1px solid rgba(231, 76, 60, 0.3);*/
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: "Arial", sans-serif; /* 确保符号显示一致 */
}

/* 移动端调整 */
@media (max-width: 768px) {
    .dropdown-logout-btn {
        padding: 12px 16px;
        font-size: 15px;
    }
}

/* 页面内容下移，避免被固定 header 遮挡 */
#main-content-area,
#video-selection,
#annotation-ui {
    margin-top: 50px; /* 根据 header 高度调整 */
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 1400px;
    background: var(--surface-color);
    color: var(--text-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 20px;
    box-sizing: border-box;
}

header, footer {
    text-align: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

footer {
    border-top: 1px solid var(--border-color);
    border-bottom: none;
    margin-top: 20px;
    font-size: 0.9em;
    color: var(--secondary-color);
}

img:not([src]), img[src=""] {
    visibility: hidden;
}

#video-selection h2 {
    text-align: center;
    margin-bottom: 10px;
}

.breadcrumb {
    margin-bottom: 20px;
    font-size: 1.1em;
    color: var(--secondary-color);
}

.breadcrumb-link {
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumb, .mode-btn {
    color: var(--text-color);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

#sidebar, .video-item, .folder-item {
    background-color: var(--surface-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.video-item:hover, .folder-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.video-item-cover {
    width: 100%;
    height: 130px;
    object-fit: cover;
    background-color: #333;
}

.folder-icon {
    font-size: 4em;
    color: var(--folder-color);
    padding: 30px 0;
}

.item-name {
    padding: 15px;
    font-weight: 500;
    word-break: break-all;
}

.main-content {
    display: flex;
    gap: 20px;
}

.annotation-area {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

#image-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    max-height: 75vh;
    aspect-ratio: 16 / 9;
    border: 1px solid var(--border-color);
    background-color: #000;
}

#display-image, #point-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

#point-canvas { cursor: crosshair; }

/* 当鼠标在图像外时的光标样式 */
#point-canvas.outside-image {
    cursor: not-allowed;
}

#sidebar {
    width: 280px;
    flex-shrink: 0;
    background-color: var(--surface-color);
    border-radius: 8px;
    padding: 15px;
    border: 1px solid var(--border-color);
    max-height: 75vh;
    overflow-y: auto;
}

#sidebar h3 {
    margin-top: 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 10px;
}

#object-list { display: flex; flex-direction: column; gap: 10px; }

.object-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--surface-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.object-item.active {
    background-color: #333;
    border-color: var(--primary-color);
}

.object-color-swatch { width: 20px; height: 20px; border-radius: 4px; flex-shrink: 0; }
.object-name { flex-grow: 1; }

.object-class-btn {
    font-family: monospace;
    font-size: 0.9em;
    font-weight: bold;
    color: var(--primary-color);
    background-color: #333;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    padding: 2px 6px;
    cursor: pointer;
}

.object-actions button {
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 1.2em;
    padding: 2px;
    line-height: 1;
    cursor: pointer;
}

.object-actions button:hover { color: var(--text-color); }

.sidebar-btn {
    width: 100%;
    margin-top: 15px;
    padding: 8px 15px;
    border-radius: 5px;
    border: 1px solid var(--primary-color);
    font-size: 1em;
    cursor: pointer;
    background-color: var(--primary-color);
    color: white;
}

.sidebar-btn:hover { background-color: #0097a7; }

.controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background-color: var(--surface-color);
    border-radius: 5px;
}

.navigation, .skip-control, .actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

#frame-counter {
    font-size: 1.1em;
    font-weight: 500;
    min-width: 80px;
    text-align: center;
}

button, input {
    padding: 8px 15px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    font-size: 1em;
    cursor: pointer;
}

.action-btn.review { background-color: var(--warning-color); border-color: var(--warning-color); color: #333;}
.action-btn.review:hover { background-color: #e0a800; }
.action-btn.success { background-color: var(--success-color); border-color: var(--success-color); color: white; }
.action-btn.success:hover { background-color: #218838; }
.action-btn.reset { background-color: var(--danger-color); border-color: var(--danger-color); color: white; }
.action-btn.reset:hover { background-color: #c82333; }
#back-to-list-btn { background-color: var(--secondary-color); border-color: var(--secondary-color); color: white; }

.hidden { display: none !important; }

/* 优化Toast通知样式 - 浅灰色背景版本，增强淡出效果 */
#toast-notification {
    position: fixed;
    top: 80px;
    right: 10px;
    transform: translateX(0);
    left: auto;

    /* 浅灰色背景，在深色背景下既柔和又醒目 */
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #495057;
    padding: 20px 23px;
    border-radius: 16px;
    box-shadow:
        0 12px 35px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.2);

    z-index: 10000;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    max-width: 420px;
    min-width: 280px;
    word-wrap: break-word;
    border: 1px solid rgba(255, 255, 255, 0.3);

    /* 初始状态：隐藏且在上方 */
    display: none;
    opacity: 0;
    transform: translateY(-30px) translateX(0) scale(0.95);
    /* 延长过渡时间，添加更多变换属性 */
    transition:
        opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.8s cubic-bezier(0.4, 0, 0.2, 1),
        display 0.8s step-end;
}

/* 显示状态：完全可见且在下移位置 */
#toast-notification.show {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) translateX(0) scale(1);
}

/* 淡出状态：向上移动并缩小淡出 */
#toast-notification.fade-out {
    opacity: 0 !important;
    transform: translateY(-20px) translateX(0) scale(0.98) !important;
    /* 淡出时使用不同的缓动函数 */
    transition:
        opacity 0.6s cubic-bezier(0.4, 0, 1, 1),
        transform 0.6s cubic-bezier(0.4, 0, 1, 1);
}

/* 不同类型的Toast样式 - 基于浅灰色主题 */
#toast-notification::before {
    content: '💡';
    margin-right: 12px;
    font-size: 20px;
    vertical-align: middle;
}

#toast-notification.success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
    border-color: rgba(21, 87, 36, 0.2);
    box-shadow:
        0 12px 35px rgba(21, 87, 36, 0.2),
        0 0 0 1px rgba(21, 87, 36, 0.1);
}

#toast-notification.success::before {
    content: '✅';
}

#toast-notification.error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
    border-color: rgba(114, 28, 36, 0.2);
    box-shadow:
        0 12px 35px rgba(114, 28, 36, 0.2),
        0 0 0 1px rgba(114, 28, 36, 0.1);
}

#toast-notification.error::before {
    content: '❌';
}

#toast-notification.warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
    border-color: rgba(133, 100, 4, 0.2);
    box-shadow:
        0 12px 35px rgba(133, 100, 4, 0.2),
        0 0 0 1px rgba(133, 100, 4, 0.1);
}

#toast-notification.warning::before {
    content: '⚠️';
}

#toast-notification.info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    color: #0c5460;
    border-color: rgba(12, 84, 96, 0.2);
    box-shadow:
        0 12px 35px rgba(12, 84, 96, 0.2),
        0 0 0 1px rgba(12, 84, 96, 0.1);
}

#toast-notification.info::before {
    content: 'ℹ️';
}

/* 响应式调整 */
@media (max-width: 768px) {
    #toast-notification {
        top: 20px;
        right: 20px;
        left: 20px;
        max-width: none;
        min-width: auto;
        transform: translateY(-30px) scale(0.95);
        padding: 18px 24px;
        font-size: 15px;
    }

    #toast-notification.show {
        transform: translateY(0) scale(1);
    }

    #toast-notification.fade-out {
        transform: translateY(-15px) scale(0.98) !important;
    }
}

/* 小屏幕进一步调整 */
@media (max-width: 480px) {
    #toast-notification {
        top: 15px;
        right: 15px;
        left: 15px;
        padding: 16px 20px;
        font-size: 14px;
        border-radius: 14px;
    }

    #toast-notification::before {
        font-size: 18px;
        margin-right: 10px;
    }
}

/* 添加悬停效果 */
#toast-notification:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow:
        0 16px 40px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

/* 确保在深色背景下的可见性 */
#toast-notification {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* 添加文字阴影增强可读性 */
#toast-notification {
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

/* 微光效果 */
#toast-notification::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
}

/* 添加淡出时的模糊效果 */
#toast-notification.fade-out {
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

/* 如果其他地方定义了 hidden 类，确保它不会影响 toast */
#toast-notification:not(.show) {
    display: none !important;
}

#mode-selection {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.mode-switcher {
    display: inline-flex;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.mode-btn {
    padding: 10px 20px;
    font-size: 1.1em;
    cursor: pointer;
    background-color: var(--surface-color);
    color: var(--secondary-color);
    border: none;
    border-right: 1px solid var(--border-color);
    transition: all 0.2s ease-in-out;
}

.mode-btn:last-child { border-right: none; }

.mode-btn:hover { background-color: var(--background-color); }

.mode-btn.active {
    background-color: var(--primary-color);
    color: white;
    font-weight: bold;
}

/* === 全局深色背景 === */
body, html {
    height: 100%;
    margin: 0;
    font-family: 'Orbitron', 'Segoe UI', sans-serif;
    background: linear-gradient(145deg, #141414, #1f1f1f);
    color: var(--text-color);
}

/* === 登录页面 === */
.modal-overlay {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeInUp 0.8s ease-out;
}

.app-title {
    font-size: 50px;
    font-weight: 700;
    margin-bottom: 50px;
    color: #ffffff;
    letter-spacing: 4px;
}

.login-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px 60px 40px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(6px);
}

/* 登录/注册标签切换 */
.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 25px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.auth-tab {
    flex: 1;
    padding: 12px 20px;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.auth-tab:hover {
    color: rgba(255, 255, 255, 0.9);
}

.auth-tab.active {
    color: #fff;
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.login-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
}

.form-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.form-row label {
    font-size: 16px;
    width: 70px;
    text-align: right;
    color: #ddd;
}

.form-row input {
    width: 220px;
    padding: 8px 10px;
    font-size: 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    outline: none;
    transition: all 0.3s ease;
}

.form-row input::placeholder { color: rgba(255, 255, 255, 0.5); }

.form-row input:focus {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.15);
}

#login-btn {
    width: 150px;
    padding: 10px;
    font-size: 16px;
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    background-color: var(--primary-color);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.25s, transform 0.1s;
}

#login-btn:hover { background-color: #0097a7; transform: scale(1.05); }

#register-btn {
    width: 150px;
    padding: 10px;
    font-size: 16px;
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    background-color: var(--primary-color);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.25s, transform 0.1s;
}

#register-btn:hover { background-color: #0097a7; transform: scale(1.05); }

.error-message {
    color: #ff7070;
    font-size: 14px;
    text-align: center;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

select {
    background-color: #333;
    color: #eee;
    border: 1px solid #555;
    border-radius: 5px;
    padding: 5px 10px;
}

/* 模式切换按钮 */
.mode-switcher .mode-btn {
    padding: 10px 20px;
    font-size: 1.1em;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease-in-out;
}

/* 激活状态按钮 */
.mode-btn.active#annotate-mode-btn {
    background-color: var(--primary-color); /* 蓝色 */
    color: #ffffff;
    font-weight: bold;
}

.mode-btn.active#review-mode-btn {
    background-color: #fef3c7; /* 浅黄色背景 */
    color: #92400e;             /* 深黄色文字 */
    font-weight: bold;
}

/* 非激活状态按钮 */
.mode-btn:not(.active) {
    background-color: var(--surface-color); /* 深色背景 */
    color: var(--secondary-color);
}

/* 悬停效果 */
.mode-btn:hover:not(.active) {
    background-color: #333; /* 深灰色悬停 */
}

/* === 标签管理美化样式 === */

/* 标签列表容器外围边框 */
#label-list-container {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--surface-color);
    margin-bottom: 20px;
    overflow: hidden;
}

/* 标签表格样式 */
#label-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface-color);
    color: var(--text-color);
    margin-bottom: 0;
    border: none;
}

/* 表头样式 - 白色文字，灰色分隔线 */
#label-table th {
    background: linear-gradient(145deg, #2a2a2a, #333);
    color: var(--text-color);
    font-weight: 600;
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

/* 表格单元格样式 - 所有文字都是白色，添加内部线条 */
#label-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    color: var(--text-color);
}

/* 添加列之间的垂直线条 */
#label-table th:not(:last-child),
#label-table td:not(:last-child) {
    border-right: 1px solid var(--border-color);
}

/* 标签ID单元格 - 白色文字 */
#label-table td:first-child {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: var(--text-color);
    text-align: center;
    width: 80px;
}

/* 标签名单元格 */
#label-table td:nth-child(2) {
    font-weight: 500;
    color: var(--text-color);
}

/* 操作按钮单元格 */
#label-table td:last-child {
    text-align: center;
    min-width: 150px;
}

/* 表格行悬停效果 */
#label-table tr:hover {
    background: rgba(0, 188, 212, 0.08);
    transition: background-color 0.2s ease;
}

/* 标签操作按钮 */
.label-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    margin: 2px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    font-weight: 500;
    color: white;
}

.label-edit-btn {
    background: linear-gradient(145deg, #17a2b8, #138496);
}

.label-edit-btn:hover {
    background: linear-gradient(145deg, #138496, #117a8b);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(23, 162, 184, 0.3);
}

.label-delete-btn {
    background: linear-gradient(145deg, #dc3545, #c82333);
}

.label-delete-btn:hover {
    background: linear-gradient(145deg, #c82333, #bd2130);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

/* 标签表单样式 */
.label-form, .label-edit-form {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
}

.label-form h4, .label-edit-form h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

/* 标签操作容器 */
.label-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

/* 空状态提示 */
#label-table-body:empty::before {
    content: "暂无标签数据";
    display: block;
    text-align: center;
    padding: 40px;
    color: var(--secondary-color);
    font-style: italic;
}

/* 修复标签输入框图标遮挡问题 */
.label-form .form-group,
.label-edit-form .form-group {
    position: relative;
    margin-bottom: 15px;
}

.label-form .input-icon,
.label-edit-form .input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
    font-size: 1.1rem;
    z-index: 2;
}

#new-label-name,
#edit-label-name {
    padding-left: 40px !important;
    width: 100%;
    box-sizing: border-box;
    color: var(--text-color);
}

/* 确保标签表单与其他表单样式一致 */
.label-form .form-input:focus,
.label-edit-form .form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}

/* 动画效果 */
@keyframes labelFadeIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

#label-table tr {
    animation: labelFadeIn 0.3s ease-out;
}

/* 响应式设计 */
@media (max-width: 768px) {
    #label-list-container {
        border-radius: 6px;
    }

    #label-table {
        font-size: 0.8rem;
    }

    #label-table th,
    #label-table td {
        padding: 8px 6px;
    }

    /* 在移动端移除列之间的垂直线条 */
    #label-table th:not(:last-child),
    #label-table td:not(:last-child) {
        border-right: none;
    }

    .label-actions {
        flex-direction: column;
        gap: 4px;
    }

    .label-action-btn {
        width: 100%;
        justify-content: center;
    }
}

/* === 任务分配优化排版 === */


/* 页面标题和返回按钮区域 */
.annotation-page-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    padding: 0 10px;
}

.annotation-page-header .back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px 20px;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
}

.annotation-page-header .back-btn:hover {
    background: rgba(0, 188, 212, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 确保图像容器没有额外的内边距或定位 */
#image-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    max-height: 75vh;
    aspect-ratio: 16 / 9;
    border: 1px solid var(--border-color);
    background-color: #000;
    overflow: hidden;
}

/* 移除之前可能存在的返回按钮样式 */
.annotation-header {
    display: none;
}

/* 主内容区域布局 */
.main-content {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.annotation-area {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 优化侧边栏布局 */
#sidebar {
    width: 300px;
    flex-shrink: 0;
    background-color: var(--surface-color);
    border-radius: 8px;
    padding: 0;
    border: 1px solid var(--border-color);
    max-height: 75vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(42, 42, 42, 0.8);
}

.sidebar-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-color);
}

.sidebar-header .add-btn {
    width: auto;
    margin: 0;
    padding: 6px 12px;
    font-size: 0.9rem;
    background: var(--primary-color);
    border: none;
}

.sidebar-header .add-btn:hover {
    background: #0097a7;
}

.object-list-container {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
}

/* 优化对象项样式 */
.object-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--surface-color);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 8px;
}

.object-item:hover {
    border-color: var(--primary-color);
    background: rgba(0, 188, 212, 0.05);
}

.object-item.active {
    border-color: var(--primary-color);
    background: rgba(0, 188, 212, 0.1);
}

.object-color-swatch {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    flex-shrink: 0;
}

.object-name {
    flex-grow: 1;
    font-size: 0.9rem;
    font-weight: 500;
}

.object-class-select {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    color: var(--text-color);
    font-size: 0.85rem;
    min-width: 0;
    flex: 1;
}

.object-actions {
    display: flex;
    gap: 4px;
}

.object-actions button {
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 1rem;
    padding: 4px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.object-actions button:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.1);
}

/* 重新设计底部控制栏 */
.controls {
    background: var(--surface-color);
    border-radius: 8px;
    padding: 15px;
    margin-top: 15px;
    border: 1px solid var(--border-color);
}

.controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.frame-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
}

.skip-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.skip-control label {
    font-size: 0.9rem;
    color: var(--text-color);
    white-space: nowrap;
}

.skip-input {
    width: 60px;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--background-color);
    color: var(--text-color);
}

.navigation {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background: var(--background-color);
    color: var(--text-color);
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.nav-btn:hover {
    border-color: var(--primary-color);
    background: rgba(0, 188, 212, 0.1);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.frame-counter {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    min-width: 80px;
    text-align: center;
    background: var(--background-color);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.action-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

.action-btn.save:hover {
    background: #218838;
    transform: translateY(-1px);
}

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

.action-btn.reset:hover {
    background: #c82333;
    transform: translateY(-1px);
}

.action-btn.delete {
    background: #6c757d;
    color: white;
}

.action-btn.delete:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .controls-row {
        flex-direction: column;
        gap: 15px;
    }

    .frame-controls {
        width: 100%;
        justify-content: space-between;
    }

    .action-buttons {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    #sidebar {
        width: 100%;
        max-height: 300px;
    }

    .frame-controls {
        flex-direction: column;
        gap: 10px;
    }

    .action-buttons {
        flex-wrap: wrap;
    }

    .annotation-header .back-btn {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
}

/* 移除旧的底部控制栏样式 */
.controls-bottom-row {
    display: none;
}

/* 模态对话框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-dialog {
    background: white;
    border-radius: 8px;
    padding: 0;
    min-width: 400px;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    animation: modalAppear 0.2s ease-out;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    padding: 20px 24px 0;
    border-bottom: 1px solid #e1e5e9;
}

.modal-header h3 {
    margin: 0;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
    color: #666;
    line-height: 1.5;
}

.modal-body p {
    margin: 0 0 12px 0;
}

.modal-body p:last-child {
    margin-bottom: 0;
}

.modal-footer {
    padding: 16px 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    border-top: 1px solid #e1e5e9;
}

.modal-footer .btn-primary,
.modal-footer .btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.modal-footer .btn-primary {
    background-color: #4a90e2;
    color: white;
}

.modal-footer .btn-primary:hover {
    background-color: #357abd;
}

.modal-footer .btn-secondary {
    background-color: #f5f5f5;
    color: #666;
    border: 1px solid #ddd;
}

.modal-footer .btn-secondary:hover {
    background-color: #e9e9e9;
}

/* 状态切换按钮样式优化 */
.complete-btn, .reopen-btn {
    position: relative;
    transition: all 0.3s ease;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
}

/* 标注中状态 - 黄色背景 */
.in-progress-status {
    background-color: #ffc107;
    color: #333;
}

.in-progress-status:hover {
    background-color: #e0a800;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* 标注完成状态 - 绿色背景 */
.completed-status {
    background-color: #28a745;
    color: white;
}

.completed-status:hover {
    background-color: #218838;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* 鼠标悬停提示效果 */
.complete-btn::after, .reopen-btn::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.complete-btn:hover::after, .reopen-btn:hover::after {
    opacity: 1;
}

/* 工作模式切换按钮的悬停提示 */
.mode-btn {
    position: relative;
}

.mode-btn::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.mode-btn:hover::after {
    opacity: 1;
}

/* 视频项状态指示 */
.video-item.status-completed {
    border-left: 4px solid #28a745;
}

.video-item.status-in_progress {
    border-left: 4px solid #ffc107;
}

.folder-item.status-completed {
    border-left: 4px solid #28a745;
}

.folder-item.status-in_progress {
    border-left: 4px solid #ffc107;
}

/* 帧计数器输入框样式 */
.frame-counter input {
    width: 60px;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 2px;
    font-size: inherit;
    font-family: inherit;
    background: inherit; /* 继承父元素背景色 */
    color: inherit; /* 继承父元素文字颜色 */
}

.frame-counter input:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
    background: white; /* 聚焦时使用白色背景确保可读性 */
    color: black; /* 聚焦时使用黑色文字确保对比度 */
}

/* 帧计数器悬停效果 */
.frame-counter {
    cursor: pointer;
    transition: background-color 0.2s;
    padding: 2px 8px;
    border-radius: 4px;
    user-select: none; /* 防止文字被选中 */
}

.frame-counter:hover {
    background-color: rgba(255, 255, 255, 0.1); /* 使用半透明白色，适应各种背景 */
}

/* 如果您的界面是深色主题，可以额外添加这些样式 */
.dark-theme .frame-counter input {
    background: inherit;
    color: inherit;
    border-color: #666;
}

.dark-theme .frame-counter input:focus {
    background: white;
    color: black;
}

.item-icon {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 20px;
    background: rgba(0,0,0,0.7);
    padding: 5px;
    border-radius: 5px;
    z-index: 2;
}

/* 模态框头部样式优化 */
.modal-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px 24px 16px 24px;
    margin-bottom: 0;
    position: relative;
    border-bottom: 1px solid #f3f4f6;
}

.modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #1f2937;
    flex: 1;
}

.modal-header .stats-notice {
    width: 100%;
    margin: 8px 0 0 0;
    padding: 8px 12px;
    font-size: 13px;
    color: #6b7280;
    background: #f9fafb;
    border-left: 3px solid #3b82f6;
    border-radius: 4px;
    order: 3;
}

.close-modal-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #6b7280;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: absolute;
    top: 16px;
    right: 16px;
}

.close-modal-btn:hover {
    background: #f3f4f6;
    color: #374151;
}

/* 模态框整体样式优化 */
.modal-dialog {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    border-top: 1px solid #f3f4f6;
    margin-top: 0;
}

/* 任务管理模态框特定样式 */
.task-management-modal .modal-header {
    border-bottom: 1px solid #f3f4f6;
}

/* 表单样式优化 - 修复下拉框颜色问题 */
.form-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    background: white;
    transition: border-color 0.2s ease;
    color: #1f2937; /* 确保字体颜色为深色 */
    appearance: none; /* 移除默认样式 */
    background-image: url("data:image/svg+xml;charset=US-ASCII,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'><path fill='%236b7280' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
}

.form-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 确保下拉选项也有正确的颜色 */
.form-select option {
    color: #1f2937;
    background: white;
    padding: 8px;
}

.op-form-group {
    margin-bottom: 20px;
}

.op-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #0a0a0a;
}

/* 按钮样式优化 */
.btn-primary {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: #e5e7eb;
    border-color: #9ca3af;
}

/* 视频项和文件夹项样式优化 */
.video-item, .folder-item {
    position: relative;
    transition: all 0.2s ease;
}

.video-item:hover, .folder-item:hover {
    transform: translateY(-2px);
}

/* 确保其他元素不会覆盖菜单按钮 */
.video-item-cover, .folder-icon, .item-name {
    position: relative;
    z-index: 1;
}

/* 模态框内容样式 */
.modal-content-text {
    margin-bottom: 16px;
    color: #4b5563;
    line-height: 1.5;
}

.modal-content-text strong {
    color: #1f2937;
}

/* 响应式优化 */
@media (max-width: 640px) {
    .modal-dialog {
        width: 95%;
        margin: 20px auto;
    }

    .modal-header {
        padding: 16px 20px 12px 20px;
    }

    .modal-body {
        padding: 20px;
    }

    .modal-footer {
        padding: 16px 20px 20px 20px;
        flex-direction: column;
    }

    .option-icon {
        font-size: 24px;
        margin-right: 12px;
        width: 36px;
        height: 36px;
    }
}


/* 返回根目录按钮样式 */
.back-breadcrumb-btn {
    background: #f8f9fa;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    color: #4b5563;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.back-breadcrumb-btn:hover {
    background: #e5e7eb;
    border-color: #9ca3af;
    color: #1f2937;
}

.back-breadcrumb-btn .btn-icon {
    font-size: 16px;
}

/* 调整面包屑容器样式 */
.breadcrumb {
    margin-bottom: 16px;
    padding: 0 8px;
}

/* 导出信息样式优化 */
.export-info {
    background: #f8fafc;
    padding: 16px;
    border-radius: 8px;
    margin-top: 16px;
    border-left: 4px solid #3b82f6;
}

.export-info p {
    margin: 0 0 12px 0;
    font-weight: 600;
    color: #1f2937;
}

.export-info ul {
    margin: 0;
    padding-left: 20px;
}

.export-info li {
    margin-bottom: 6px;
    font-size: 14px;
    color: #4b5563;
    position: relative;
}

.export-info li::before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    position: absolute;
    left: -18px;
}

/* === 新的主布局样式 === */
#main-layout {
    display: flex;
    gap: 0;
    margin-top: 20px;
    position: relative;
    min-height: calc(100vh - 150px);
    background: var(--surface-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* 左侧边栏样式 - 只包含工作模式切换 */
#main-sidebar {
    width: 250px;
    flex-shrink: 0;
    background: linear-gradient(145deg, #2a2a2a, #333);
    border-right: 1px solid var(--border-color);
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

#main-sidebar.sidebar-collapsed {
    width: 0;
    opacity: 0;
    transform: translateX(-20px);
    overflow: hidden;
}

.main-content-area.full-width {
    margin-left: 0 !important;
    width: 100% !important;
}

/* 侧边栏隐藏状态 */
#main-sidebar.hidden {
    display: none !important;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(42, 42, 42, 0.9);
}

.sidebar-header h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-color);
    flex: 1;
    font-weight: 600;
}

.toggle-sidebar-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.toggle-sidebar-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-color);
}

.sidebar-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 垂直模式切换器 */
.mode-switcher-vertical {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mode-switcher-vertical .mode-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    width: 100%;
    font-size: 1rem;
}

.mode-switcher-vertical .mode-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.mode-switcher-vertical .mode-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

.mode-icon {
    font-size: 1.4rem;
    width: 30px;
    text-align: center;
}

.mode-text {
    flex: 1;
    font-weight: 500;
}

/* 主内容区域 */
#main-content-area {
    flex: 1;
    transition: all 0.3s ease;
    background: var(--surface-color);
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

#main-content-area.main-content-expanded {
    margin-left: 0;
}

/* 侧边栏折叠时的头部 */
.sidebar-collapsed-header {
    padding: 15px 20px;
    background: rgba(42, 42, 42, 0.9);
    border-bottom: 1px solid var(--border-color);
}

.expand-sidebar-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.expand-sidebar-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-color);
}

/* 任务列表区域 */
#video-selection {
    flex: 1;
    padding: 0;
    margin: 0;
    background: transparent;
    border: none;
    border-radius: 0;
}

#video-selection .breadcrumb {
    padding: 20px;
    margin: 0;
    background: rgba(42, 42, 42, 0.8);
    border-bottom: 1px solid var(--border-color);
}

#video-selection .video-grid {
    padding: 20px;
}

/* 标注界面 */
#annotation-ui {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0;
    margin: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    width: 100%;
}

/* 调整标注区域在全宽模式下的布局 */
.main-content-area.full-width .main-content {
    padding: 0;
    margin: 0;
}

/* 全宽模式下的标注区域 */
.main-content-area.full-width .annotation-area {
    flex: 1;
    max-width: none;
}

/* 全宽模式下的侧边栏（标注列表）调整 */
.main-content-area.full-width #sidebar {
    width: 300px;
    min-width: 300px;
}

.annotation-page-header {
    padding: 20px;
    background: rgba(42, 42, 42, 0.8);
    border-bottom: 1px solid var(--border-color);
}

#annotation-ui .main-content {
    flex: 1;
    padding: 20px;
    margin: 0;
}

/* 标注界面的侧边栏保持原有样式 */
#annotation-ui #sidebar {
    width: 300px;
    flex-shrink: 0;
    background: var(--surface-color);
    border-radius: 8px;
    padding: 0;
    border: 1px solid var(--border-color);
    max-height: calc(100vh - 250px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

/* 管理面板独立显示 */
#admin-panel {
    margin-top: 20px;
    background: var(--surface-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 20px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    #main-sidebar {
        width: 220px;
    }
}

@media (max-width: 768px) {
    #main-layout {
        flex-direction: column;
        min-height: auto;
    }

    #main-sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    #main-sidebar.sidebar-collapsed {
        display: none;
    }

    .sidebar-collapsed-header.hidden {
        display: none;
    }

    .mode-switcher-vertical {
        flex-direction: row;
        overflow-x: auto;
    }

    .mode-switcher-vertical .mode-btn {
        min-width: 160px;
    }
}

/* 隐藏元素 */
.hidden {
    display: none !important;
}

/* 添加无任务提示样式 */
.no-tasks-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
    color: var(--secondary-color);
    background: var(--surface-color);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    margin: 20px 0;
}

.no-tasks-message p {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color);
}

.no-tasks-hint {
    margin-top: 10px !important;
    font-size: 14px !important;
    color: var(--secondary-color) !important;
    font-weight: normal !important;
}

/* 确保视频网格在有任务时正常显示 */
.video-grid:has(.no-tasks-message) {
    display: block;
}

/* 统计信息样式 */
.item-stats {
    margin: 8px 0;
    padding: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font-size: 12px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.stat-row:last-child {
    margin-bottom: 0;
}

.stat-label {
    color: var(--secondary-color);
    font-weight: 500;
}

.stat-value {
    color: var(--text-color);
    font-weight: 600;
}

/* 进度条样式 */
.progress-container {
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #00d4ff);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 11px;
    color: var(--secondary-color);
    font-weight: 600;
    min-width: 30px;
    text-align: right;
}

/* 调整视频项布局以适应新内容 */
.video-item {
    position: relative;
    padding: 12px;
}

.video-item .item-name {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 1.3;
}

.video-item .item-status {
    margin-top: 8px;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    display: inline-block;
}

/* 确保封面图片不会太大 */
.video-item-cover {
    max-height: 120px;
    object-fit: cover;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .item-stats {
        font-size: 11px;
    }

    .progress-container {
        flex-direction: column;
        gap: 4px;
    }

    .progress-text {
        text-align: center;
    }
}

/* 可点击的标签总数样式 */
.clickable-label-count {
    color: var(--primary-color) !important;
    cursor: pointer;
    text-decoration: underline;
    transition: all 0.2s ease;
}

.clickable-label-count:hover {
    color: #00d4ff !important;
    background: rgba(0, 188, 212, 0.1);
    border-radius: 4px;
    padding: 2px 4px;
}

/* 标签详情模态框样式 */
.label-details-modal {
    max-width: 500px;
    max-height: 80vh;
    overflow: hidden;
}

.label-details-modal .modal-body {
    padding: 0;
}

.task-info {
    padding: 16px 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    font-size: 14px;
    color: #495057;
}

.label-details-container {
    padding: 20px;
}

.label-details-header {
    display: grid;
    grid-template-columns: 1fr auto 100px;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 2px solid #e9ecef;
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

.label-details-header span:last-child {
    text-align: center;
}

.label-details-list {
    max-height: 300px;
    overflow-y: auto;
}

.label-detail-row {
    display: grid;
    grid-template-columns: 1fr auto 100px;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #f1f3f4;
    align-items: center;
}

.label-detail-row:last-child {
    border-bottom: none;
}

.label-name {
    font-weight: 500;
    color: #212529;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.label-count {
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
    background: rgba(0, 188, 212, 0.1);
    padding: 4px 8px;
    border-radius: 12px;
    min-width: 40px;
}

.label-bar-container {
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.label-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #00d4ff);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* 无标签消息 */
.no-labels-message {
    text-align: center;
    padding: 40px 20px;
    color: #6c757d;
    font-style: italic;
}

/* 标签统计摘要 */
.label-summary {
    display: flex;
    gap: 20px;
    padding: 16px 20px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    justify-content: center;
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.summary-label {
    font-size: 12px;
    color: #6c757d;
}

.summary-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
}

/* 滚动条样式 */
.label-details-list::-webkit-scrollbar {
    width: 6px;
}

.label-details-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.label-details-list::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.label-details-list::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .label-details-modal {
        margin: 10px;
        max-width: calc(100vw - 20px);
    }

    .label-details-header,
    .label-detail-row {
        grid-template-columns: 1fr auto;
        gap: 8px;
    }

    .label-bar-container {
        display: none; /* 在小屏幕上隐藏进度条 */
    }

    .label-summary {
        flex-direction: column;
        gap: 12px;
    }
}

/* 筛选控件样式 */
.filter-controls {
    margin-bottom: 20px;
    padding: 16px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.filter-row {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-group label {
    font-weight: 500;
    color: var(--text-color);
    white-space: nowrap;
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--background-color);
    color: var(--text-color);
    font-size: 14px;
    min-width: 120px;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
}

.filter-count {
    margin-left: auto;
}

.count-text {
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(0, 188, 212, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .filter-row {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .filter-group {
        justify-content: space-between;
    }

    .filter-count {
        margin-left: 0;
        text-align: center;
    }

    .filter-select {
        flex: 1;
        min-width: auto;
    }
}

/* 任务项中的分配者信息 */
.video-item .item-assignee,
.folder-item .item-assignee {
    font-size: 12px;
    color: var(--secondary-color);
    margin-top: 4px;
}

/* 高亮当前用户的任务 */
.video-item.assigned-to-current,
.folder-item.assigned-to-current {
    border-left: 4px solid var(--primary-color);
}

/* Logo样式 */
.logo-image {
    height: 40px; /* 根据您的logo调整大小 */
    width: auto;
    object-fit: contain;
}

/* 登录页面Logo容器 */
.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    text-align: center;
}

.login-logo .app-title {
    font-size: 48px;
    font-weight: 700;
    margin: 0;
    color: #ffffff;
    letter-spacing: 3px;
}

.login-logo .logo-image {
    height: 80px; /* 显著增大logo尺寸 */
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3)); /* 添加阴影效果 */
}

/* 头部Logo样式 - 可点击 */
.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 100%;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 8px 16px; /* 增加内边距 */
    border-radius: 8px;
    margin-left: 10px; /* 额外向右移动 */
}

.header-logo:hover {
    transform: translateY(-1px);
}

.header-logo:active {
    transform: translateY(0);
}

/* 添加点击动画效果 */
@keyframes logoClick {
    0% { transform: scale(1); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

.header-logo.clicked {
    animation: logoClick 0.3s ease;
}

.header-logo:hover::after {
    opacity: 1;
}

.header-logo .app-title {
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0;
    color: #ffffff;
    line-height: 1;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .login-logo {
        flex-direction: column;
        gap: 10px;
    }

    .login-logo .app-title {
        font-size: 36px;
    }

    .header-logo .app-title {
        font-size: 1.5rem;
    }

    .logo-image {
        height: 32px;
    }
}

@media (max-width: 480px) {
    .header-logo .app-title {
        display: none; /* 在非常小的屏幕上隐藏文字，只显示logo */
    }

    .login-logo .app-title {
        font-size: 28px;
    }
}

/* COCO格式导出选项的特殊样式 */
.export-info[data-type="coco"] {
    border-left-color: #ff6b6b;
    background: #fff5f5;
}

.export-info[data-type="coco"] p {
    color: #c92a2a;
}

/* === 标签管理主页面样式 === */

/* 标签管理界面整体样式 */
#label-management-ui {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--surface-color);
    color: var(--text-color);
}

.label-management-content {
    display: grid;
    gap: 30px;
}

/* 标签列表部分 */
.label-list-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.section-header h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 20px;
}

.label-count {
    color: var(--secondary-color);
    font-size: 14px;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 12px;
}

/* 标签表格 */
.label-management-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface-color);
    color: var(--text-color);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.label-management-table th {
    background: linear-gradient(145deg, #2a2a2a, #333);
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

.label-management-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}

.label-management-table tr:last-child td {
    border-bottom: none;
}

.label-management-table tr:hover {
    background: rgba(0, 188, 212, 0.08);
}

/* 表格单元格特定样式 */
.label-id-cell {
    font-weight: 600;
    color: var(--primary-color);
    width: 80px;
    text-align: center;
}

.label-name-cell {
    font-weight: 500;
    color: var(--text-color);
}

.label-color-cell {
    width: 100px;
    text-align: center;
}

.label-color-cell .color-swatch {
    display: inline-block;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.label-color-cell .color-swatch:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.4);
}

.label-actions-cell {
    width: 200px;
    text-align: right;
}

/* 标签操作按钮 */
.label-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    font-weight: 500;
    color: white;
}

.label-action-btn.edit {
    background: linear-gradient(145deg, #17a2b8, #138496);
}

.label-action-btn.edit:hover {
    background: linear-gradient(145deg, #138496, #117a8b);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(23, 162, 184, 0.3);
}

.label-action-btn.delete {
    background: linear-gradient(145deg, #dc3545, #c82333);
}

.label-action-btn.delete:hover {
    background: linear-gradient(145deg, #c82333, #bd2130);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--secondary-color);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.7;
}

.empty-state h3 {
    margin: 0 0 8px 0;
    color: var(--text-color);
}

.empty-state p {
    margin: 0;
    line-height: 1.5;
    color: var(--secondary-color);
}

/* 管理员功能区 */
.label-admin-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.label-form-card,
.label-edit-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 20px;
}

.label-form-card h4,
.label-edit-card h4 {
    margin: 0 0 15px 0;
    color: var(--text-color);
    font-size: 18px;
}

/* 表单组样式 */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #ffffff;
}

/* 修复：确保输入框文字可见 */
.form-input {
    width: 100%;
    max-width: 400px;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}

.form-input::placeholder {
    color: var(--secondary-color);
    opacity: 0.7;
}

/* 表单提示文字 */
.form-hint {
    margin: 10px 0 0 0;
    color: var(--secondary-color);
    font-size: 13px;
    line-height: 1.4;
}

/* 表单操作按钮 */
.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn-primary {
    background: linear-gradient(145deg, var(--primary-color), #0097a7);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: linear-gradient(145deg, #0097a7, #00838f);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--secondary-color);
    transform: translateY(-1px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    #label-management-ui {
        padding: 15px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .label-management-table {
        font-size: 14px;
    }

    .label-management-table th,
    .label-management-table td {
        padding: 8px 10px;
    }

    .label-actions-cell {
        width: auto;
    }

    .label-action-btn {
        padding: 4px 8px;
        margin-left: 4px;
        font-size: 11px;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .form-input {
        max-width: 100%;
    }
}

/* 标签管理按钮在侧边栏的样式 */
#label-management-mode-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    width: 100%;
    font-size: 1rem;
    margin-top: 10px;
}

#label-management-mode-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

#label-management-mode-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

/* 添加标签按钮的特殊样式 */
#add-label-btn {
    background: linear-gradient(145deg, #28a745, #218838);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    margin-top: 10px;
}

#add-label-btn:hover {
    background: linear-gradient(145deg, #218838, #1e7e34);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

/* 编辑标签表单的特殊样式 */
#label-edit-area {
    border-left: 4px solid var(--warning-color);
}

/* 确保所有文字在深色背景下可见 */
.label-management-ui * {
    color: var(--text-color) !important;
}

/* 特别修复输入框文字颜色 */
#new-label-name,
#edit-label-name {
    color: var(--text-color) !important;
    background: rgba(255, 255, 255, 0.1) !important;
}

#new-label-name::placeholder,
#edit-label-name::placeholder {
    color: var(--secondary-color) !important;
    opacity: 0.7;
}

/* 确保表格文字颜色 */
.label-management-table th,
.label-management-table td {
    color: var(--text-color) !important;
}

/* 确保按钮文字颜色 */
.label-action-btn {
    color: white !important;
}

/* 确保表单标签文字颜色 */
.label-form-card label,
.label-edit-card label {
    color: var(--text-color) !important;
}

/* 确保提示文字颜色 */
.form-hint {
    color: var(--secondary-color) !important;
}

/* 确保计数文字颜色 */
.label-count {
    color: var(--secondary-color) !important;
}

/* === 数据集管理主页面样式 === */

/* 数据集管理界面整体样式 */
#dataset-management-ui {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--surface-color);
    color: var(--text-color);
}

.dataset-management-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.dataset-management-header h2 {
    margin: 0 0 10px 0;
    color: var(--text-color);
    font-size: 28px;
}

.dataset-management-description {
    color: var(--secondary-color);
    font-size: 16px;
    line-height: 1.5;
    margin: 0;
}

.dataset-management-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 上传部分网格布局 */
.upload-sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

/* 上传部分样式 */
.upload-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.upload-form-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    margin-top: 15px;
}

.upload-form-card h4 {
    margin: 0 0 8px 0;
    color: var(--text-color);
    font-size: 18px;
}

.upload-description {
    color: var(--secondary-color);
    margin: 0 0 15px 0;
    font-size: 14px;
    line-height: 1.4;
}

.upload-controls {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.file-input {
    flex: 1;
    min-width: 200px;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    font-size: 14px;
}

.file-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
}

.upload-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.upload-status {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    min-height: 20px;
}

/* 合并的数据集概览部分 */
.dataset-overview-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.dataset-overview-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 30px;
}

.header-left h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 20px;
}

.dataset-stats-summary {
    display: flex;
    gap: 25px;
    align-items: center;
}

.stats-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    /*background: rgba(255, 255, 255, 0.05);*/
    border-radius: 6px;
    /*border: 1px solid var(--border-color);*/
}

.stats-label {
    color: var(--secondary-color);
    font-size: 14px;
    font-weight: 500;
}

.stats-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 30px;
    text-align: center;
}

/* 数据集列表容器 */
.dataset-list-container {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    background: var(--surface-color);
    max-height: 500px; /* 设置最大高度 */
    overflow-y: auto;  /* 添加垂直滚动 */
    position: relative;
}

.dataset-management-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface-color);
    color: var(--text-color);
    margin: 0; /* 移除默认边距 */
}

.dataset-management-table th {
    background: linear-gradient(145deg, #2a2a2a, #333);
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

.dataset-management-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}

.dataset-management-table tr:last-child td {
    border-bottom: none;
}

.dataset-management-table tr:hover {
    background: rgba(0, 188, 212, 0.08);
}

/* 数据集表格单元格特定样式 */
.dataset-name-cell {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.dataset-icon {
    font-size: 1.2rem;
}

.dataset-type-cell {
    text-align: center;
}

.type-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.type-badge.video {
    background: rgba(0, 188, 212, 0.2);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.type-badge.image {
    background: rgba(40, 167, 69, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.dataset-time-cell {
    color: var(--secondary-color);
    font-size: 14px;
}

.dataset-actions-cell {
    text-align: center;
    width: 120px;
}

.dataset-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    font-weight: 500;
    color: white;
}

.dataset-action-btn.delete {
    background: linear-gradient(145deg, #dc3545, #c82333);
}

.dataset-action-btn.delete:hover {
    background: linear-gradient(145deg, #c82333, #bd2130);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--secondary-color);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.7;
}

.empty-state h3 {
    margin: 0 0 8px 0;
    color: var(--text-color);
}

.empty-state p {
    margin: 0;
    line-height: 1.5;
    color: var(--secondary-color);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .upload-sections-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    #dataset-management-ui {
        padding: 15px;
    }

    .dataset-overview-section .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }

    .header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .dataset-stats-summary {
        width: 100%;
        justify-content: space-between;
    }

    .stats-item {
        flex: 1;
        justify-content: center;
    }

    .upload-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .file-input {
        min-width: auto;
    }

    .dataset-management-table {
        font-size: 14px;
    }

    .dataset-management-table th,
    .dataset-management-table td {
        padding: 8px 10px;
    }

    .dataset-actions-cell {
        width: auto;
    }

    .dataset-action-btn {
        padding: 4px 8px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .dataset-stats-summary {
        flex-direction: column;
        gap: 10px;
    }

    .stat-item {
        width: 100%;
        justify-content: space-between;
    }
}

/* 数据集管理按钮在侧边栏的样式 */
#dataset-management-mode-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    width: 100%;
    font-size: 1rem;
    margin-top: 10px;
}

#dataset-management-mode-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

#dataset-management-mode-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

/* 确保所有文字在深色背景下可见 */
.dataset-management-ui * {
    color: var(--text-color) !important;
}

/* 特别修复文件输入框文字颜色 */
.file-input {
    color: var(--text-color) !important;
    background: rgba(255, 255, 255, 0.1) !important;
}

.file-input::file-selector-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
}

.file-input::file-selector-button:hover {
    background: #0097a7;
}

/* 确保状态文字颜色 */
.upload-status {
    color: var(--text-color) !important;
}

/* 上传状态颜色 */
.upload-status.success {
    color: var(--success-color) !important;
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--success-color);
}

.upload-status.error {
    color: var(--danger-color) !important;
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--danger-color);
}

.upload-status.info {
    color: var(--primary-color) !important;
    background: rgba(0, 188, 212, 0.1);
    border: 1px solid var(--primary-color);
}

/* === 分页控件样式 === */
.pagination-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 10px;
}

.pagination-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.pagination-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

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

.pagination-info {
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
    padding: 0 8px;
    white-space: nowrap;
}

.pagination-info span {
    font-weight: 700;
    color: var(--primary-color);
}

/* 响应式设计：在移动端调整分页控件 */
@media (max-width: 768px) {
    .header-right {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }

    .pagination-controls {
        order: 2;
        justify-content: center;
    }

    .pagination-info {
        font-size: 12px;
        padding: 0 4px;
    }

    .pagination-btn {
        padding: 4px 6px;
        min-width: 28px;
        height: 28px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .pagination-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination-info {
        order: -1;
        width: 100%;
        text-align: center;
        margin-bottom: 5px;
    }
}

/* 添加序号列样式 */
.dataset-number-cell {
    text-align: center;
    color: var(--secondary-color);
    font-weight: 600;
    width: 50px;
}

/* 调整表头宽度以适应新增的序号列 */
.dataset-management-table th:first-child {
    width: 50px;
}

/* 任务分配界面样式 - 深色主题适配 */
.task-assignment-content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.assignment-module {
    background: var(--surface-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
}

.assignment-module .module-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.assignment-module .module-header h3 {
    margin: 0 0 5px 0;
    color: var(--text-color);
}

.module-description {
    color: var(--secondary-color);
    font-size: 14px;
}

.assignment-content {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.resource-pool {
    flex: 1;
}

.pool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.pool-header h4 {
    margin: 0;
    color: var(--text-color);
}

.pool-count {
    background: rgba(0, 188, 212, 0.2);
    color: var(--primary-color);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.pool-container select {
    width: 100%;
    min-height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 8px;
    background: var(--background-color);
    color: var(--text-color);
}

/* 修复选择框选项文字颜色 */
.pool-container select option {
    background: var(--surface-color);
    color: var(--text-color);
    padding: 8px;
}

.assignment-controls {
    width: 300px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.user-selection {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.user-selection label {
    font-weight: 500;
    color: var(--text-color);
}

.user-selection select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--background-color);
    color: var(--text-color);
}

/* 修复用户选择框选项文字颜色 */
.user-selection select option {
    background: var(--surface-color);
    color: var(--text-color);
}

.assign-btn {
    padding: 12px 20px;
    font-size: 14px;
    margin-top: 10px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.assign-btn:hover {
    background: #0097a7;
    transform: translateY(-1px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .assignment-content {
        flex-direction: column;
        gap: 20px;
    }

    .assignment-controls {
        width: 100%;
    }

    .pool-container select {
        min-height: 150px;
    }
}

/* === 分页控件样式 === */
.task-pagination-container {
    margin: 15px 0;
    display: flex;
    justify-content: center;
    padding: 0 20px;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.pagination-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.4);
}

.pagination-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 188, 212, 0.3);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pagination-info {
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
    padding: 0 12px;
    white-space: nowrap;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.pagination-info .current-page {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 16px;
}

.pagination-info .total-pages {
    font-weight: 600;
    color: var(--text-color);
}

/* 任务列表分页特殊样式 */
.task-pagination .pagination-controls {
    background: linear-gradient(145deg, rgba(42, 42, 42, 0.9), rgba(51, 51, 51, 0.9));
    border: 1px solid rgba(0, 188, 212, 0.3);
}

/* 分页按钮图标样式 */
.pagination-btn .btn-icon {
    font-size: 12px;
    font-weight: bold;
    line-height: 1;
}

/* 响应式设计：在移动端调整分页控件 */
@media (max-width: 768px) {
    .task-pagination-container,
    .review-image-pagination-container {
        padding: 0 10px;
        margin: 10px 0;
    }

    .pagination-controls {
        padding: 8px 12px;
        gap: 6px;
    }

    .pagination-btn {
        padding: 6px 8px;
        min-width: 32px;
        height: 32px;
        font-size: 12px;
    }

    .pagination-info {
        font-size: 12px;
        padding: 4px 8px;
    }

    .pagination-info .current-page {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .pagination-controls {
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
    }

    .pagination-info {
        order: -1;
        width: 100%;
        text-align: center;
        margin-bottom: 8px;
        font-size: 11px;
    }

    .pagination-btn {
        min-width: 28px;
        height: 28px;
        padding: 4px 6px;
        font-size: 11px;
    }
}

/* 分页控件动画 */
@keyframes paginationSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.task-pagination-container {
    animation: paginationSlideIn 0.4s ease-out;
}

/* 分页控件悬停效果增强 */
.pagination-btn {
    position: relative;
    overflow: hidden;
}

.pagination-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.pagination-btn:hover::before {
    left: 100%;
}

/* 当前页高亮效果 */
.pagination-info .current-page {
    position: relative;
}

.pagination-info .current-page::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

/* 确保分页控件在深色主题下的可读性 */
.pagination-controls * {
    color: var(--text-color) !important;
}

.pagination-btn:disabled * {
    color: var(--secondary-color) !important;
}

/* 面包屑导航样式优化 */
.breadcrumb-separator {
    margin: 0 8px;
    color: var(--secondary-color);
}

.current-folder {
color: var(--primary-color);
font-weight: 500;
}

/* 任务列表分页在视频选择区域的定位优化 */
#video-selection .task-pagination-container:first-of-type {
margin-bottom: 10px;
}

#video-selection .task-pagination-container:last-of-type {
margin-top: 10px;
}

/* 分页控件与筛选控件的间距优化 */
.filter-controls + .task-pagination-container {
margin-top: 5px;
}

.video-grid + .task-pagination-container {
margin-top: 10px;
}

/* 自定义确认对话框样式 */
.custom-confirm-modal {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.7);
display: flex;
justify-content: center;
align-items: center;
z-index: 10000;
backdrop-filter: blur(5px);
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.custom-confirm-dialog {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid #e1e5e9;
    animation: dialogSlideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes dialogSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(-50px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.custom-confirm-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.custom-confirm-icon {
    font-size: 28px;
    margin-right: 15px;
    color: #e74c3c;
}

.custom-confirm-title {
    font-size: 22px;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.custom-confirm-content {
    margin-bottom: 25px;
    line-height: 1.6;
}

.custom-confirm-message {
    font-size: 16px;
    color: #5a6c7d;
    margin-bottom: 15px;
}

.custom-confirm-details {
    background: #f8f9fa;
    border-left: 4px solid #3498db;
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
}

.custom-confirm-details ul {
    margin: 0;
    padding-left: 20px;
}

.custom-confirm-details li {
    margin-bottom: 8px;
    color: #6c757d;
}

.custom-confirm-details li:last-child {
    margin-bottom: 0;
}

.custom-confirm-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 12px 15px;
    color: #856404;
    font-weight: 600;
    display: flex;
    align-items: center;
    margin-top: 15px;
}

.custom-confirm-warning-icon {
    margin-right: 10px;
    font-size: 18px;
}

.custom-confirm-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 25px;
}

.custom-confirm-btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

.custom-confirm-btn.confirm {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.custom-confirm-btn.confirm:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

.custom-confirm-btn.cancel {
    background: #6c757d;
    color: white;
}

.custom-confirm-btn.cancel:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .custom-confirm-dialog {
        padding: 20px;
        margin: 20px;
    }

    .custom-confirm-actions {
        flex-direction: column;
    }

    .custom-confirm-btn {
        width: 100%;
    }
}

/* 标注任务分配用户信息样式 */
.item-assignee {
    font-size: 12px;
    color: #666;
    margin: 4px 0;
    padding: 2px 6px;
    border-radius: 4px;
    border-left: 3px solid #3498db;
}

.item-assignee.unassigned {
    color: #999;
    border-left-color: #bdc3c7;
}

/* 调整任务项布局以适应新元素 */
.video-item {
    position: relative;
    padding: 12px;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.video-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

/* 确保任务名称和分配信息有合适的间距 */
.item-name {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 14px;
    line-height: 1.3;
}

/* 调整统计信息容器的上边距 */
.item-stats {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #f0f0f0;
}

/* 状态标签样式调整 */
.item-status {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    background: #e74c3c;
    color: white;
}

.status-completed .item-status {
    background: #27ae60;
}

.status-in_progress .item-status {
    background: #f39c12;
}

/* 进度条容器调整 */
.progress-container {
    margin-top: 8px;
}

/* 添加硬件加速和优化渲染性能 */
#video-list,
.video-grid,
.folder-item,
.video-item {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000;
    will-change: transform;
}

/* 优化动画性能 */
#main-sidebar {
    transform: translateZ(0);
    transition: transform 0.3s ease;
}

/* 优化任务项的渲染 */
.video-item, .folder-item {
    contain: layout style paint;
}

/* 优化滚动性能 */
#video-list {
    -webkit-overflow-scrolling: touch;
    overflow-anchor: auto;
}

/* === 项目管理样式 - 深色主题优化 === */

.project-management-content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--surface-color);
    color: var(--text-color);
}

.project-form-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.project-form-card:hover {
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
    border-color: var(--primary-color);
}

.labels-container {
    margin: 15px 0;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.label-field {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    gap: 12px;
    padding: 8px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.label-field:hover {
    background: rgba(255, 255, 255, 0.03);
}

.label-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--background-color);
    color: var(--text-color);
    font-size: 14px;
    transition: all 0.3s ease;
}

.label-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.remove-label-btn {
    background: linear-gradient(145deg, var(--danger-color), #c82333);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
}

.remove-label-btn:hover {
    background: linear-gradient(145deg, #c82333, #bd2130);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

.project-management-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.project-management-table th {
    background: linear-gradient(145deg, #2a2a2a, #333);
    padding: 15px 20px;
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 2px solid var(--primary-color);
    font-size: 14px;
}

.project-management-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    transition: background-color 0.2s ease;
}

.project-management-table tr:last-child td {
    border-bottom: none;
}

.project-management-table tr:hover td {
    background: rgba(0, 188, 212, 0.08);
}

.project-name-cell {
    font-weight: 600;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.project-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.label-count-badge {
    background: rgba(0, 188, 212, 0.2);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    transition: all 0.3s ease;
}

.label-count-badge:hover {
    background: rgba(0, 188, 212, 0.3);
    transform: scale(1.05);
}

.stat-item {
    background: rgba(255, 255, 255, 0.08);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 11px;
    color: var(--secondary-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--primary-color);
}

.project-actions-cell {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.project-action-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s ease;
    min-width: 100px;
    justify-content: center;
}

.project-action-btn.manage-labels {
    background: linear-gradient(145deg, var(--success-color), #218838);
    color: white;
}

.project-action-btn.manage-labels:hover {
    background: linear-gradient(145deg, #218838, #1e7e34);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.project-action-btn.stats-btn {
    background: linear-gradient(145deg, var(--success-color), #218838);
    color: white;
}

.project-action-btn.stats-btn:hover {
    background: linear-gradient(145deg, #218838, #1e7e34);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.project-action-btn.delete {
    background: linear-gradient(145deg, var(--danger-color), #c82333);
    color: white;
}

.project-action-btn.delete:hover {
    background: linear-gradient(145deg, #c82333, #bd2130);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--secondary-color);
    background: var(--surface-color);
    border-radius: 8px;
    border: 2px dashed var(--border-color);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.7;
    color: var(--secondary-color);
}

.empty-state h3 {
    margin: 0 0 8px 0;
    color: var(--text-color);
    font-weight: 600;
}

.empty-state p {
    margin: 0;
    line-height: 1.5;
    color: var(--secondary-color);
}

/* 项目选择器样式 */
.project-selector-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 标签范围标识 */
.scope-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.scope-badge.global {
    background: rgba(0, 188, 212, 0.2);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.scope-badge.project {
    background: rgba(40, 167, 69, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.scope-badge:hover {
    transform: scale(1.05);
}

/* 标签表格调整 */
.label-scope-cell {
    text-align: center;
}

.label-management-table th,
.label-management-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}

.label-management-table th {
    background: linear-gradient(145deg, #2a2a2a, #333);
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 2px solid var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .project-management-content {
        padding: 15px;
    }

    .project-form-card {
        padding: 20px;
    }

    .project-management-table {
        font-size: 14px;
    }

    .project-management-table th,
    .project-management-table td {
        padding: 10px 12px;
    }

    .project-actions-cell {
        flex-direction: column;
        gap: 6px;
    }

    .project-action-btn {
        min-width: auto;
        width: 100%;
    }

    .label-field {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 480px) {
    .project-management-table {
        display: block;
        overflow-x: auto;
    }

    .project-name-cell {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* 动画效果 */
@keyframes projectFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-form-card,
.project-management-table {
    animation: projectFadeIn 0.4s ease-out;
}

/* 表单组样式统一 */
.pj-form-group {
    margin-bottom: 20px;
}

.pj-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--background-color);
    color: var(--text-color);
    font-size: 14px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

/* 按钮样式统一 */
.btn-primary {
    background: linear-gradient(145deg, var(--primary-color), #0097a7);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    background: linear-gradient(145deg, #0097a7, #00838f);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.4);
}

/* 确保所有文字在深色主题下可见 */
.project-management-content * {
    color: var(--text-color) !important;
}

/* 特别修复输入框占位符颜色 */
.form-input::placeholder {
    color: var(--secondary-color) !important;
    opacity: 0.7;
}

/* 在现有的CSS中添加项目信息样式 */
.item-project {
    font-size: 12px;
    color: #666;
    margin-top: 5px;
    padding: 2px 6px;
    background: #f0f0f0;
    border-radius: 3px;
    display: inline-block;
}

.item-project.unassigned {
    color: #999;
    background: #f8f8f8;
}

/* 任务列表中的项目标签 */
.project-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 16px;
    font-weight: 500;
}

/* 数据集列表中的项目列 */
.dataset-project-cell {
    font-size: 13px;
}

.dataset-project-cell .project-badge {
    font-size: 11px;
    padding: 1px 5px;
}

/* 任务统计模态框样式 */
.task-stats-modal .modal-dialog {
    max-width: 1200px;
    max-height: 90vh;
    overflow: hidden;
}

.task-stats-dialog {
    display: flex;
    flex-direction: column;
}

.task-stats-dialog .modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

/* 汇总统计样式 */
.btn-secondary.btn-sm {
    color: #0a0a0a;
}

.stats-summary-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

/* 汇总统计网格调整 */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-top: 15px;
}

.summary-item {
    display: flex;
    align-items: center;
    padding: 12px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.summary-icon {
    font-size: 20px;
    margin-right: 10px;
}

.summary-value {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    line-height: 1;
}

.summary-label {
    font-size: 11px;
    color: #6c757d;
    margin-top: 2px;
}

/* 标签统计样式 */
.label-stats-section {
    margin-bottom: 30px;
}

.label-stats-grid {
    display: grid;
    gap: 10px;
    margin-top: 15px;
}

.label-stat-item {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.label-info {
    display: flex;
    align-items: center;
    flex: 1;
}

.label-name {
    font-weight: 500;
    color: #2c3e50;
    min-width: 80px;
}

.label-count {
    margin-left: auto;
    font-weight: bold;
    color: #3498db;
    min-width: 40px;
    text-align: right;
}

.label-bar-container {
    flex: 2;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    margin: 0 15px;
    overflow: hidden;
}

.label-bar {
    height: 100%;
    background: linear-gradient(90deg, #3498db, #2980b9);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.label-percentage {
    font-size: 12px;
    color: #6c757d;
    min-width: 40px;
    text-align: right;
}

/* 任务列表样式 */
.task-list-section {
    margin-top: 30px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

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

.task-filters label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.task-stats-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.task-type-section h5 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid #3498db;
}

.task-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

/* 任务卡片样式 */
.task-stat-card {
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    min-height: 80px; /* 减小高度 */
}

.task-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.task-stat-card.completed {
    border-left: 4px solid #27ae60;
}

.task-stat-card.in-progress {
    border-left: 4px solid #f39c12;
}

.task-card-header {
    display: flex;
    align-items: center;
    height: 100%;
}

.task-select-label {
    margin-right: 12px;
    cursor: pointer;
}

.task-select-checkbox {
    display: none;
}

.checkmark {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid #bdc3c7;
    border-radius: 3px;
    position: relative;
    transition: all 0.3s ease;
}

.task-select-checkbox:checked + .checkmark {
    background: #3498db;
    border-color: #3498db;
}

.task-select-checkbox:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.task-info {
    flex: 1;
}

.task-name {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 6px;
    word-break: break-word;
    font-size: 14px;
    line-height: 1.3;
}

.task-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.task-assignee {
    color: #7f8c8d;
    background: #f8f9fa;
    padding: 2px 8px;
    border-radius: 4px;
}

.task-status {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
}

.task-status.completed {
    background: #d5f4e6;
    color: #27ae60;
}

.task-status.in-progress {
    background: #fdebd0;
    color: #f39c12;
}

/* 任务统计网格调整 */
.task-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}

/* 任务统计数字样式 */
.task-stats {
    margin-top: 10px;
}

.sst-stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 13px;
}

.sst-stat-label {
    color: #7f8c8d;
}

.sst-stat-value {
    font-weight: 600;
    color: #2c3e50;
}

/* 进度条样式 */
.progress-container {
    margin-top: 10px;
}

.progress-bar {
    height: 6px;
    background: #ecf0f1;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 4px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3498db, #2980b9);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 11px;
    color: #7f8c8d;
    text-align: right;
}

/* 汇总统计模态框 */
.aggregate-stats-modal .modal-dialog {
    max-width: 600px;
}

.aggregate-summary {
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.aggregate-label-stats {
    margin-top: 20px;
}

.aggregate-label-stats h5 {
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .task-stats-grid {
        grid-template-columns: 1fr;
    }

    .summary-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .task-stat-card {
        min-height: 70px;
        padding: 12px;
    }

    .task-name {
        font-size: 13px;
    }

    .task-stats-modal .modal-dialog {
        margin: 20px;
        max-height: calc(100vh - 40px);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .task-filters {
        width: 100%;
        justify-content: space-between;
    }
}

.section-header h4 {
    margin: 0;
    color: #2c3e50;
    font-size: 16px;
}

.task-filters {
    display: flex;
    align-items: center;
    gap: 12px;
}

.task-filters label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    color: #6c757d;
}

/* 空状态样式 */
.no-tasks-message {
    text-align: center;
    padding: 40px 20px;
    color: #7f8c8d;
}

.no-tasks-message .no-tasks-hint {
    font-size: 14px;
    margin-top: 8px;
    color: #95a5a6;
}

.no-labels-message {
    text-align: center;
    padding: 20px;
    color: #7f8c8d;
    font-style: italic;
}

.split-ratios {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.split-ratios label {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}

.ratio-inputs {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ratio-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ratio-group label {
    font-weight: normal;
    min-width: 60px;
    margin-bottom: 0;
}

.ratio-input {
    width: 60px;
    padding: 6px 8px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    text-align: center;
}

.ratio-input:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.ratio-sum {
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 600;
    padding: 8px 12px;
    background: white;
    border-radius: 4px;
    border: 1px solid #e9ecef;
}

.export-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.export-btn {
    padding: 12px 20px;
    font-size: 14px;
    align-self: flex-start;
}

.export-info {
    background: white;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.export-info p {
    font-weight: 600;
    margin-bottom: 8px;
    color: #2c3e50;
}

.export-info ul {
    margin: 0;
    padding-left: 20px;
    color: #6c757d;
}

.export-info li {
    margin-bottom: 4px;
    font-size: 13px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .export-controls {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .ratio-inputs {
        flex-direction: row;
        justify-content: space-between;
    }

    .ratio-group {
        flex: 1;
        flex-direction: column;
        gap: 4px;
    }

    .ratio-group label {
        min-width: auto;
        font-size: 12px;
    }

    .ratio-input {
        width: 100%;
    }
}

/* 按钮加载状态 */
.export-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 比例总和样式 */
#ratio-total {
    transition: all 0.3s ease;
}

/* 导出格式选择器样式 */
.export-format-selection {
    margin: 15px 0;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.export-format-selection label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #495057;
}

.export-format-selection .form-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    background-color: white;
    font-size: 14px;
}

.export-format-selection .form-select:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* 导出功能样式 - 垂直布局 */
.export-section {
    margin-top: 20px;
    padding: 0;
}

.export-section h5 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 5px;
}

.export-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.export-config-group {
    background: white;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.section-label {
    display: block;
    margin-bottom: 15px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 数据集划分比例样式 */
.ratio-controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ratio-inputs-horizontal {
    display: flex;
    gap: 15px;
    justify-content: space-between;
}

.ratio-group-horizontal {
    flex: 1;
    text-align: center;
}

.ratio-group-horizontal label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #495057;
    font-weight: 500;
}

.ratio-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    border: 1px solid #ced4da;
    border-radius: 6px;
    overflow: hidden;
    background: white;
    transition: border-color 0.3s ease;
}

.ratio-input-wrapper:focus-within {
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.ratio-input {
    width: 100%;
    padding: 10px 12px;
    border: none;
    text-align: center;
    font-size: 14px;
    background: transparent;
    font-weight: 500;
}

.ratio-input:focus {
    outline: none;
    background: #f8f9fa;
}

.ratio-unit {
    padding: 10px 12px;
    background: #f8f9fa;
    color: #6c757d;
    font-size: 13px;
    border-left: 1px solid #e9ecef;
    font-weight: 500;
}

.ratio-summary-horizontal {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: #e8f5e8;
    border-radius: 6px;
    border: 1px solid #d4edda;
}

.ratio-total-label {
    font-size: 14px;
    color: #155724;
    font-weight: 500;
}

.ratio-total-value {
    font-weight: 600;
    color: #155724;
    font-size: 16px;
}

/* 导出格式选择样式 */
.format-select-wrapper {
    position: relative;
    width: 100%;
}

.format-select {
    width: 100%;
    padding: 12px 45px 12px 15px;
    border: 1px solid #ced4da;
    border-radius: 8px;
    color: #0a0a0a;
    background-color: white;
    font-size: 14px;
    appearance: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background-image: none;
}

.format-select:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.select-arrow {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #6c757d;
    pointer-events: none;
    font-size: 12px;
}

/* 导出内容预览样式 */
.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
}

.format-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.yolo-format {
    background: #e3f2fd;
    color: #1976d2;
    border: 1px solid #bbdefb;
}

.coco-format {
    background: #e8f5e8;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.export-content-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.content-item {
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    font-size: 13px;
    color: #495057;
    border-left: 3px solid #28a745;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 开始导出区域样式 */
.export-action-group {
    background: white;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.export-stats {
    display: flex;
    gap: 25px;
}

.export-action-btn {
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 140px;
    justify-content: center;
}

.export-action-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .ratio-inputs-horizontal {
        flex-direction: column;
        gap: 10px;
    }

    .export-content-list {
        grid-template-columns: 1fr;
    }

    .export-action-group {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .export-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
    }

    .export-action-btn {
        width: 100%;
    }
}

/* 比例总和验证样式 */
.ratio-total-value.invalid {
    color: #dc3545;
    font-weight: bold;
}

.ratio-summary-horizontal.invalid {
    background: #f8d7da;
    border-color: #f5c6cb;
}

.fps-form-group label {
    color: black;
}

.fps-form-input {
    color: black;
    background-color: white;
}

/* 抽帧模态框样式 */
.frame-extraction-modal .modal-dialog {
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
}

.frame-extraction-dialog .modal-body {
    padding: 20px;
}

.extraction-info-section {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.extraction-info-section h4 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-item label {
    font-weight: bold;
    color: #666;
    font-size: 0.9em;
    margin-bottom: 4px;
}

.info-item span {
    color: #333;
}

.status-new {
    color: #28a745;
    font-weight: bold;
}

.annotation-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 15px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.warning-icon {
    font-size: 1.5em;
    color: #f39c12;
}

.warning-content h5 {
    margin: 0 0 8px 0;
    color: #856404;
}

.warning-content p {
    margin: 0 0 12px 0;
    color: #856404;
}

.btn-warning {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9em;
}

.btn-warning:hover {
    background: #c0392b;
}

.extraction-settings-section {
    margin-bottom: 20px;
}

.extraction-settings-section h4 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}

.extraction-preview {
    background: #e8f4fd;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
}

.extraction-preview h5 {
    margin-top: 0;
    color: #2980b9;
}

.preview-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.preview-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.preview-label {
    font-weight: bold;
    color: #666;
}

.preview-value {
    color: #333;
    font-weight: 500;
}

.extraction-progress-section {
    margin-bottom: 20px;
}

.extraction-progress-section h4 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}

.extraction-details {
    margin-top: 10px;
    font-size: 0.9em;
    color: #666;
}

.extraction-result-section {
    margin-bottom: 20px;
}

.extraction-result-section h4 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}

.result-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 8px;
    padding: 15px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.success-icon {
    font-size: 1.3em;
    color: #28a745;
}

/* 抽帧按钮样式 */
.extract-frames-btn {
    width: fit-content;      /* 只根据内容宽度撑开 */
    margin-left: 0;          /* 左对齐 */
    margin-right: auto;      /* 右侧自动推开，保持贴左 */
    margin-top: 1px;

    background: #9b59b6;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85em;
    gap: 8px;
}

/*.extract-btn-container {*/
/*    display: flex;*/
/*    justify-content: flex-start;*/
/*    align-items: flex-start; !* 改为靠上对齐 *!*/
/*    !* min-height: 40px; *!  !* 删除或注释掉 *!*/
/*}*/

.extract-frames-btn {
    display: inline-flex; /* 小按钮，但在卡片内像普通行元素 */
    align-items: center;
    justify-content: flex-start;
}

.extract-frames-btn:hover {
    background: #8e44ad;
}

.extract-frames-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
}

.video-item-card {
    position: relative;   /* 让绝对定位按钮相对卡片定位 */
}

.extract-frames-btn {
    position: absolute;
    top: 168px;          /* 根据 item-name 高度调整，贴近名字 */
    left: 12px;
    padding: 2px 8px;
    font-size: 0.85em;
    z-index: 10;       /* 保证在上层，不会被下面按钮覆盖 */
    pointer-events: auto; /* 默认即可，确保能点击 */
}
.extract-frames-btn-placeholder {
    display: none;       /* 占位不需要显示高度 */
}

/* 输入提示样式 */
.input-hint {
    font-size: 0.8em;
    color: #666;
    margin-top: 4px;
    font-style: italic;
}

/* ==================== 缓存管理样式 ==================== */
.cache-management {
    margin-top: 20px;
}

.cache-management h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.section-description {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

/* 缓存统计信息 */
.cache-stats {
    display: flex;
    gap: 30px;
    background: rgba(0, 188, 212, 0.1);
    border: 1px solid rgba(0, 188, 212, 0.3);
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.stat-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.stat-value {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 600;
}

/* 清理表单 */
.cleanup-form {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.form-group-inline {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 250px;
}

.form-group-inline label {
    color: var(--text-color);
    font-size: 0.9rem;
    white-space: nowrap;
}

.form-input-small {
    width: 80px;
    background-color: #333;
    color: #eee;
    border: 1px solid #555;
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 0.9rem;
    transition: border-color 0.2s, background-color 0.2s;
}

.form-input-small:focus {
    border-color: var(--primary-color);
    background-color: #3a3a3a;
    outline: none;
}

.form-group-inline .input-hint {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    font-style: normal;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cache-stats {
        flex-direction: column;
        gap: 10px;
    }
    
    .cleanup-form {
        flex-direction: column;
        gap: 15px;
    }
    
    .form-group-inline {
        min-width: 100%;
    }
}