/* ========== AI+赋能页面样式 - 深色科技风格 ========== */
        
        body {
            background: #0f172a;
        }
        
        .header {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(99, 102, 241, 0.2);
        }
        
        /* 深色主题 - 导航栏适配 */
        .header .nav-item {
            color: rgba(255, 255, 255, 0.7);
        }
        
        .header .nav-item:hover,
        .header .nav-item.active {
            color: #a78bfa;
        }
        
        .header .nav-item.active::after {
            background: linear-gradient(90deg, #60a5fa, #a78bfa);
        }
        
        /* 深色主题 - 下拉菜单适配 */
        .header .dropdown-menu {
            background: rgba(30, 27, 75, 0.98);
            border: 1px solid rgba(99, 102, 241, 0.3);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
        }
        
        .header .dropdown-menu a {
            color: rgba(255, 255, 255, 0.8);
        }
        
        .header .dropdown-menu a:hover {
            background: rgba(99, 102, 241, 0.2);
            color: #a78bfa;
        }
        
        /* 深色主题 - 按钮适配 */
        .header .btn-primary {
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border: none;
        }
        
        .header .btn-primary:hover {
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
        }
        
        .header .btn-secondary {
            background: rgba(99, 102, 241, 0.2);
            border-color: rgba(99, 102, 241, 0.5);
            color: white;
        }
        
        .header .btn-secondary:hover {
            background: rgba(99, 102, 241, 0.3);
            border-color: rgba(99, 102, 241, 0.7);
        }
        
        /* 深色主题 - 用户下拉菜单适配 */
        .header .user-dropdown {
            background: transparent;
        }
        
        .header .user-info {
            background: rgba(99, 102, 241, 0.2);
            border: 1px solid rgba(99, 102, 241, 0.3);
        }
        
        .header .user-info:hover {
            background: rgba(99, 102, 241, 0.3);
        }
        
        .header .user-name {
            color: white;
        }
        
        .header .dropdown-arrow {
            color: rgba(255, 255, 255, 0.7);
        }
        
        .header .user-dropdown-menu {
            background: rgba(30, 27, 75, 0.98);
            border: 1px solid rgba(99, 102, 241, 0.3);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
        }
        
        .header .user-dropdown-menu .dropdown-item {
            color: rgba(255, 255, 255, 0.8);
        }
        
        .header .user-dropdown-menu .dropdown-item:hover {
            background: rgba(99, 102, 241, 0.2);
            color: #a78bfa;
        }
        
        .header .user-dropdown-menu .dropdown-item svg {
            stroke: rgba(255, 255, 255, 0.6);
        }
        
        .header .user-dropdown-menu .dropdown-item:hover svg {
            stroke: #a78bfa;
        }
        
        .header .dropdown-divider {
            background: rgba(99, 102, 241, 0.2);
        }
        
        .header .user-dropdown-menu .dropdown-item.logout {
            color: #f87171;
        }
        
        .header .user-dropdown-menu .dropdown-item.logout svg {
            stroke: #f87171;
        }
        
        /* 深色主题 - 移动端菜单按钮 */
        .header .mobile-menu-btn span {
            background: white;
        }
        
        /* 深色主题 - 返回顶部按钮 */
        .back-to-top {
            background: rgba(99, 102, 241, 0.8);
            border: 1px solid rgba(99, 102, 241, 0.5);
        }
        
        .back-to-top:hover {
            background: rgba(99, 102, 241, 1);
        }
        
        /* Hero区域 */
        .ai-hero {
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #1e3a8a 100%);
            padding: 120px 0 80px;
            margin-top: 70px;
            position: relative;
            overflow: hidden;
        }
        
        .ai-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.2) 0%, transparent 40%);
            pointer-events: none;
        }
        
        .ai-hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        
        .ai-hero-text h1 {
            font-size: 48px;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .ai-hero-text h1 span {
            background: linear-gradient(90deg, #60a5fa, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .ai-hero-text p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            line-height: 1.8;
        }
        
        .ai-hero-stats {
            display: flex;
            gap: 40px;
        }
        
        .ai-stat-item {
            text-align: center;
        }
        
        .ai-stat-item .value {
            font-size: 36px;
            font-weight: 700;
            color: white;
            margin-bottom: 8px;
        }
        
        .ai-stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        
        .ai-hero-visual {
            position: relative;
            height: 400px;
        }
        
        .ai-brain {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .ai-brain-inner {
            width: 200px;
            height: 200px;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 72px;
            box-shadow: 0 0 60px rgba(99, 102, 241, 0.5);
            animation: pulse 2s ease-in-out infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); box-shadow: 0 0 60px rgba(99, 102, 241, 0.5); }
            50% { transform: scale(1.05); box-shadow: 0 0 80px rgba(99, 102, 241, 0.7); }
        }
        
        .ai-node {
            position: absolute;
            width: 80px;
            height: 80px;
            background: rgba(30, 27, 75, 0.8);
            border: 2px solid rgba(99, 102, 241, 0.5);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            backdrop-filter: blur(10px);
        }
        
        .ai-node span {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        
        .ai-node:nth-child(2) { top: 0; left: 20%; }
        .ai-node:nth-child(3) { top: 20%; right: 0; }
        .ai-node:nth-child(4) { bottom: 20%; right: 10%; }
        .ai-node:nth-child(5) { bottom: 0; left: 30%; }
        
        /* 能力矩阵 */
        .ai-capabilities {
            padding: 80px 0;
            background: #0f172a;
        }
        
        .section-title-dark {
            text-align: center;
            margin-bottom: 48px;
        }
        
        .section-title-dark h2 {
            font-size: 32px;
            font-weight: 700;
            color: white;
            margin-bottom: 12px;
        }
        
        .section-title-dark p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
        }
        
        .capability-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        
        .capability-card {
            display: block;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
            padding: 32px 24px;
            text-align: center;
            cursor: pointer;
        }
        
        .capability-card:hover {
            background: rgba(30, 41, 59, 0.8);
            border-color: rgba(99, 102, 241, 0.5);
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        .capability-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin: 0 auto 20px;
        }
        
        .capability-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: white;
            margin-bottom: 12px;
        }
        
        .capability-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }
        
        /* 应用场景 */
        .ai-scenarios {
            padding: 80px 0;
            background: linear-gradient(180deg, #0f172a 0%, #1e1b4b 100%);
        }
        
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        
        .scenario-card {
            display: block;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
        }
        
        .scenario-card:hover {
            border-color: rgba(99, 102, 241, 0.5);
            transform: translateY(-8px);
        }
        
        .scenario-image {
            height: 180px;
            overflow: hidden;
        }

        .scenario-image-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .scenario-card:hover .scenario-image-img {
            transform: scale(1.05);
        }
        
        .scenario-body {
            padding: 24px;
        }
        
        .scenario-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: white;
            margin-bottom: 12px;
        }
        
        .scenario-body p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        
        .scenario-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        
        .scenario-tag {
            padding: 4px 12px;
            background: rgba(99, 102, 241, 0.2);
            color: #a5b4fc;
            border-radius: 20px;
            font-size: 12px;
        }
        
        /* AI问答区 */
        .ai-chat-section {
            padding: 80px 0;
            background: #0f172a;
        }
        
        .ai-chat-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .ai-chat-box {
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 20px;
            overflow: hidden;
        }
        
        .ai-chat-header {
            padding: 20px 24px;
            background: rgba(99, 102, 241, 0.1);
            border-bottom: 1px solid rgba(99, 102, 241, 0.2);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .ai-chat-header .ai-avatar {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        
        .ai-chat-header h3 {
            color: white;
            font-size: 16px;
        }
        
        .ai-chat-header .status {
            color: #34d399;
            font-size: 12px;
        }
        
        .ai-chat-messages {
            padding: 24px;
            min-height: 300px;
            max-height: 400px;
            overflow-y: auto;
        }
        
        .chat-message {
            margin-bottom: 20px;
        }
        
        .chat-message.user {
            text-align: right;
        }
        
        .chat-message .content {
            display: inline-block;
            padding: 12px 16px;
            border-radius: 16px;
            font-size: 14px;
            line-height: 1.6;
            max-width: 80%;
        }
        
        .chat-message.user .content {
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            color: white;
            border-bottom-right-radius: 4px;
        }
        
        .chat-message.ai .content {
            background: rgba(99, 102, 241, 0.1);
            color: white;
            border-bottom-left-radius: 4px;
            text-align: left;
        }
        
        .ai-chat-input {
            padding: 20px 24px;
            background: rgba(15, 23, 42, 0.5);
            border-top: 1px solid rgba(99, 102, 241, 0.2);
            display: flex;
            gap: 12px;
        }
        
        .ai-chat-input input {
            flex: 1;
            background: rgba(30, 41, 59, 0.8);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 12px;
            padding: 12px 16px;
            color: white;
            font-size: 14px;
            outline: none;
        }
        
        .ai-chat-input input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        
        .ai-chat-input input:focus {
            border-color: rgba(99, 102, 241, 0.5);
        }
        
        .ai-chat-input button {
            padding: 12px 24px;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .ai-chat-input button:hover {
            transform: scale(1.05);
        }
        
        /* 推荐服务 */
        .ai-recommend {
            padding: 80px 0;
            background: linear-gradient(180deg, #1e1b4b 0%, #0f172a 100%);
        }
        
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .recommend-card {
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: all 0.3s;
        }
        
        .recommend-card:hover {
            border-color: #3b82f6;
        }
        
        .recommend-card .icon {
            font-size: 32px;
            margin-bottom: 12px;
        }
        
        .recommend-card h4 {
            color: white;
            font-size: 16px;
            margin-bottom: 8px;
        }
        
        .recommend-card p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
        }
        
        

        /* ========== Tab导航 ========== */
        .ai-tab-nav {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 32px;
            position: relative;
        }

        .ai-tab-btn {
            padding: 12px 24px;
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }

        .ai-tab-btn::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #60a5fa, #a78bfa);
            transition: width 0.3s;
        }

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

        .ai-tab-btn.active {
            color: #60a5fa;
        }

        .ai-tab-btn.active::after {
            width: 100%;
        }

        .ai-tab-extra-btn {
            margin-left: auto;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            text-decoration: none;
            transition: all 0.3s;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .ai-tab-extra-btn:hover {
            color: #60a5fa;
        }
        
        .ai-tab-extra-btn.active {
            color: #60a5fa;
            font-weight: 600;
        }

        .ai-tab-nav.sticky-active {
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            width: 100vw;
            z-index: 100;
            background: linear-gradient(180deg, #0f172a 0%, #1e1b4b 100%);
            margin-bottom: 0;
            padding: 12px 16px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        /* ========== 案例库面板 ========== */
        .tab-panel {
            display: none;
        }

        /* ========== Tab内容容器 ========== */
        .ai-tab-content {
            display: none;
        }

        .ai-tab-content.active {
            display: block;
            animation: fadeIn 0.3s ease;
        }

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

        /* ========== 培训活动卡片 ========== */
        .training-list {
            display: grid;
            gap: 24px;
        }

        .training-card {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 24px;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
        }

        .training-card:hover {
            border-color: rgba(99, 102, 241, 0.5);
            transform: translateY(-4px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .training-thumb {
            position: relative;
            overflow: hidden;
            width: 280px;
            height: 100%;
        }

        .training-thumb-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .training-card:hover .training-thumb-img {
            transform: scale(1.05);
        }

        .training-info {
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

        .training-info h3 {
            font-size: 20px;
            font-weight: 600;
            color: white;
            margin-bottom: 12px;
        }

        .training-info p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin-bottom: 20px;
            flex: 1;
        }

        .training-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .training-date-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .training-date {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
        }

        .training-actions {
            display: flex;
            gap: 12px;
        }

        .training-btn {
            padding: 10px 24px;
            border: none;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
        }

        .training-btn.ended {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.4);
            cursor: not-allowed;
        }

        .training-btn:not(.ended) {
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            color: white;
        }

        .training-btn:not(.ended):hover {
            transform: scale(1.05);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
        }

        /* ========== 场景征集卡片 ========== */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .collection-card {
            display: block;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
            cursor: pointer;
            text-decoration: none;
            color: inherit;
        }

        .collection-card:hover {
            border-color: rgba(99, 102, 241, 0.5);
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .collection-thumb {
            height: 140px;
            overflow: hidden;
        }

        .collection-thumb-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .collection-card:hover .collection-thumb-img {
            transform: scale(1.05);
        }

        .collection-body {
            padding: 20px;
        }

        .collection-category {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(99, 102, 241, 0.2);
            color: #a5b4fc;
            border-radius: 20px;
            font-size: 12px;
            margin-bottom: 12px;
        }

        .collection-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: white;
            margin-bottom: 8px;
        }

        .collection-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .collection-date {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== 场景征集提交入口 ========== */
        .collection-submit-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 32px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(59, 130, 246, 0.15) 100%);
            border: 1px solid rgba(99, 102, 241, 0.3);
            border-radius: 16px;
            margin-bottom: 32px;
        }

        .submit-bar-content {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .submit-bar-icon {
            font-size: 36px;
        }

        .submit-bar-text h4 {
            font-size: 18px;
            font-weight: 600;
            color: white;
            margin-bottom: 6px;
        }

        .submit-bar-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .submit-bar-btn {
            display: inline-flex;
            align-items: center;
            padding: 12px 28px;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            color: white;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s;
        }

        .submit-bar-btn:hover {
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
        }

        /* ========== AI大模型卡片 ========== */
        .aimodel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .aimodel-card {
            display: block;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            transition: all 0.3s;
            cursor: pointer;
            text-decoration: none;
            color: inherit;
        }

        .aimodel-card:hover {
            border-color: rgba(99, 102, 241, 0.5);
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .aimodel-logo {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
        }

        .aimodel-logo-img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            padding: 8px;
        }

        .aimodel-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: white;
            margin-bottom: 12px;
        }

        .aimodel-card p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .aimodel-btn {
            padding: 10px 24px;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
        }

        .aimodel-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
        }

        /* ========== 分页 ========== */
        .ai-pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 32px;
        }

        .ai-page-item {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .ai-page-item:hover {
            border-color: rgba(99, 102, 241, 0.5);
            color: white;
        }

        .ai-page-item.active {
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            border-color: transparent;
            color: white;
        }

        /* ========== 通知列表 ========== */
        .notice-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .notice-item {
            display: flex;
            gap: 20px;
            padding: 24px;
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 12px;
            text-decoration: none;
            color: inherit;
            transition: all 0.3s;
        }

        .notice-item:hover {
            border-color: rgba(99, 102, 241, 0.5);
            background: rgba(30, 41, 59, 0.8);
        }

        .notice-icon {
            font-size: 28px;
            flex-shrink: 0;
        }

        .notice-content {
            flex: 1;
        }

        .notice-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .notice-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .notice-date {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 响应式 */
        @media (max-width: 1200px) {
            .capability-grid { grid-template-columns: repeat(2, 1fr); }
            .scenario-grid { grid-template-columns: repeat(2, 1fr); }
            .recommend-grid { grid-template-columns: repeat(2, 1fr); }
            .training-list { grid-template-columns: 1fr; }
            .collection-grid { grid-template-columns: repeat(2, 1fr); }
            .aimodel-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .ai-hero-content { grid-template-columns: 1fr; text-align: center; }
            .ai-hero-text h1 { font-size: 32px; }
            .ai-hero-stats { justify-content: center; }
            .ai-hero-visual { height: 300px; }
            .capability-grid { grid-template-columns: 1fr; }
            .scenario-grid { grid-template-columns: 1fr; }
            .recommend-grid { grid-template-columns: 1fr; }
            .training-list { grid-template-columns: 1fr; }
            .collection-grid { grid-template-columns: 1fr; }
            .aimodel-grid { grid-template-columns: 1fr; }
            .ai-tab-nav {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                justify-content: flex-start;
                gap: 8px;
            }
            .ai-tab-nav::-webkit-scrollbar { display: none; }
            .ai-tab-btn {
                flex-shrink: 0;
                white-space: nowrap;
            }
            .ai-tab-extra-btn { display: none; flex-shrink: 0;white-space: nowrap;}
            .ai-node:nth-child(2) {top: -20%;left: 5%;}
            .ai-node:nth-child(3) {top: -10%;right: 0;}
            .ai-node:nth-child(4) {bottom: -5%;right: 0%;}
            .ai-node:nth-child(5) {bottom: -15%;left: 5%;}
            
            .training-card {
                display: flex;
                flex-direction: column;
            }
            .training-thumb{
                width: 100%;
            }
        
        }

        @media (max-width: 576px) {
            .ai-hero { padding: 80px 0 60px; }
            .ai-hero-text h1 { font-size: 24px; }
            .ai-hero-text p { font-size: 14px; }
            .ai-hero-stats { gap: 20px; flex-wrap: wrap; }
            .ai-stat-item .value { font-size: 28px; }
            .ai-hero-visual { height: 200px; }

            .section-title-dark h2 { font-size: 24px; }
            .section-title-dark p { font-size: 14px; }

            .capability-card { padding: 24px 16px; }
            .capability-icon { width: 48px; height: 48px; font-size: 22px; }
            .capability-card h3 { font-size: 16px; }
            .capability-card p { font-size: 13px; }

            .scenario-image { height: 140px; }
            .scenario-body { padding: 16px; }
            .scenario-body h3 { font-size: 16px; }

            .ai-chat-container { padding: 0 10px; }
            .ai-chat-messages { min-height: 200px; max-height: 300px; }
            .chat-message .content { max-width: 90%; }

            .training-thumb { width: 100%; height: 160px; }
            .training-info h3 { font-size: 16px; }

            .collection-thumb { height: 100px; }
            .collection-body { padding: 16px; }
            .collection-body h4 { font-size: 14px; }

            .ai-pagination { flex-wrap: wrap; gap: 6px; }
            .ai-page-item { width: 36px; height: 36px; font-size: 13px; }

            .notice-item { flex-direction: column; gap: 12px; padding: 16px; }
            .notice-icon { font-size: 24px; }

            .submit-bar-bar { flex-direction: column; text-align: center; gap: 16px; }
            .submit-bar-btn { width: 100%; justify-content: center; }
        }

        @media (max-width: 480px) {
            .ai-hero { padding: 60px 0 40px; }
            .ai-hero-text h1 { font-size: 20px; }
            .ai-stat-item .value { font-size: 24px; }
            .ai-stat-item .label { font-size: 12px; }

            .ai-capabilities, .ai-scenarios, .ai-chat-section, .ai-recommend { padding: 48px 0; }

            .section-title-dark h2 { font-size: 20px; }
            .section-title-dark p { font-size: 13px; }

            .capability-card { padding: 20px 12px; }
            .capability-icon { width: 40px; height: 40px; margin-bottom: 12px; }

            .scenario-image { height: 120px; }
            .scenario-body { padding: 12px; }
            .scenario-body h3 { font-size: 14px; }
            .scenario-body p { font-size: 12px; }

            .ai-chat-input { flex-direction: column; }
            .ai-chat-input input { width: 100%; }
            .ai-chat-input button { width: 100%; }

            .training-thumb { height: 120px; }
            .training-info { padding: 16px; }
            .training-info h3 { font-size: 14px; }
            .training-info p { font-size: 12px; }
            .training-actions { flex-direction: column; }
            .training-btn { width: 100%; text-align: center; }
        }