:root {
            --primary-color: #12c2e9;
            --secondary-color: #c471ed;
            --accent-color: #f64f59;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: #333;
            overflow-x: hidden;
        }

        /* 导航栏样式已移至 includes/header.php */

        /* 主视觉区域 */
        .hero {
            min-height: 100vh;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
            background-size: 100px 100px;
            animation: float 20s infinite linear;
        }

        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); }
            100% { transform: translateY(-100px) rotate(360deg); }
        }

        .hero-content {
            position: relative;
            z-index: 1;
            color: #fff;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }

        .hero p {
            font-size: 1.3rem;
            opacity: 0.9;
            margin-bottom: 30px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-download {
            background: #fff;
            color: var(--primary-color);
            padding: 18px 48px;
            font-size: 20px;
            font-weight: 600;
            border-radius: 50px;
            border: none;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-download:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
            color: var(--secondary-color);
            text-decoration: none;
        }

        .version-info {
            margin-top: 20px;
            font-size: 14px;
            opacity: 0.8;
        }

        .hero-image {
            position: relative;
            z-index: 1;
        }

        .phone-mockup {
            max-width: 1800px;
            width: 100%;
            filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.3));
            animation: bounce 3s infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }

        /* 统计数据 */
        .stats {
            background: #fff;
            padding: 60px 0;
            margin-top: -50px;
            position: relative;
            z-index: 2;
            border-radius: 30px 30px 0 0;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            color: #666;
            font-size: 16px;
            margin-top: 10px;
        }

        /* 功能亮点 */
        .features {
            padding: 100px 0;
            background: #f8f9fa;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .section-title p {
            color: #666;
            font-size: 1.1rem;
        }

        .feature-card {
            background: #fff;
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 32px;
            color: #fff;
        }

        .feature-card h4 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .feature-card p {
            color: #666;
            line-height: 1.7;
        }

        /* 应用介绍 */
        .about {
            padding: 100px 0;
            background: #fff;
        }

        .about-content h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .about-content p {
            color: #666;
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .about-list {
            list-style: none;
            padding: 0;
        }

        .about-list li {
            padding: 10px 0;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .about-list li i {
            color: var(--primary-color);
            font-size: 20px;
        }

        /* 下载区域 */
        .download-section {
            padding: 100px 0;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: #fff;
            text-align: center;
        }

        .download-section h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .download-section p {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 40px;
        }

        .download-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-download-lg {
            background: #fff;
            color: var(--primary-color);
            padding: 20px 50px;
            font-size: 20px;
            font-weight: 600;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 15px;
            transition: all 0.3s;
            text-decoration: none;
        }

        .btn-download-lg:hover {
            transform: scale(1.05);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
            color: var(--secondary-color);
            text-decoration: none;
        }

        .btn-download-lg i {
            font-size: 28px;
        }

        /* 联系我们 */
        .contact {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .contact-item {
            text-align: center;
            padding: 30px;
        }

        .contact-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            color: #fff;
            font-size: 24px;
        }

        .contact-item h5 {
            font-weight: 600;
            margin-bottom: 10px;
        }

        .contact-item p {
            color: #666;
            margin: 0;
        }

        /* 页脚样式已移至 includes/footer.php */

        @media (min-width: 769px) {
            .hero .container {
                max-width: 1800px;
                padding-left: 28px;
                padding-right: 28px;
            }

            .hero .row {
                align-items: center;
            }

            .hero .row > [class*="col-"] {
                padding-left: 8px;
                padding-right: 8px;
            }

            .hero .col-lg-6.hero-content {
                flex: 0 0 32%;
                max-width: 32%;
                padding-right: 8px;
                display: flex;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                min-height: 620px;
            }

            .hero .col-lg-6.text-center.hero-image {
                flex: 0 0 68%;
                max-width: 68%;
                padding-left: 8px;
                padding-right: 36px;
            }

            .hero .hero-cta-block {
                margin-top: 18px;
                align-self: center;
                text-align: center;
            }

            .hero .hero-cta-block .btn-download {
                display: inline-flex;
                margin-left: 0;
            }

            .hero .hero-cta-block .version-info {
                text-align: center;
            }

            .hero h1,
            .hero p {
                text-align: center;
            }
        }

        /* 响应式 - 平板 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .feature-card {
                padding: 30px 20px;
            }

            .about-content h2,
            .download-section h2 {
                font-size: 2rem;
            }
        }

        /* 响应式 - 手机 */
        @media (max-width: 768px) {
            /* 导航栏样式已移至 includes/header.php */

            /* Hero 区域 */
            .hero {
                min-height: auto;
                padding: 80px 0 40px;
            }

            .hero .row {
                flex-direction: column;
                display: flex;
            }

            .hero .col-lg-6 {
                width: 100%;
                max-width: 100%;
                flex: 0 0 100%;
            }

            .hero .col-lg-6.hero-content {
                order: 2;
            }

            .hero .col-lg-6.text-center.hero-image {
                order: 1;
            }

            .hero-content {
                text-align: center;
                margin-top: 20px;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero p {
                font-size: 0.95rem;
                margin-left: auto;
                margin-right: auto;
                padding: 0 15px;
            }

            .btn-download {
                padding: 14px 34px;
                font-size: 17px;
            }

            .version-info {
                margin-top: 15px;
            }

            .hero-image {
                margin-bottom: 0;
            }

            .hero .col-lg-6.text-center {
                display: flex !important;
                justify-content: center !important;
                align-items: center !important;
            }

            .phone-mockup {
                max-width: 350px;
                margin: 0 auto !important;
            }

            .phone-mockup svg {
                max-width: 100%;
                height: auto;
            }

            /* 统计区域 - 保持横排 */
            .stats {
                padding: 40px 0;
                margin-top: -30px;
                border-radius: 20px 20px 0 0;
            }

            .stats .row {
                display: flex;
                flex-wrap: nowrap;
            }

            .stats .col-md-4 {
                flex: 1;
                max-width: 33.333%;
            }

            .stat-item {
                padding: 10px 5px;
            }

            .stat-number {
                font-size: 1.4rem;
            }

            .stat-label {
                font-size: 12px;
            }

            /* 功能亮点 */
            .features {
                padding: 60px 0;
            }

            .section-title {
                margin-bottom: 40px;
            }

            .section-title h2 {
                font-size: 1.8rem;
            }

            .section-title p {
                font-size: 1rem;
            }

            .feature-card {
                padding: 25px 20px;
                margin-bottom: 15px;
            }

            .feature-icon {
                width: 60px;
                height: 60px;
                font-size: 24px;
                border-radius: 15px;
                margin-bottom: 20px;
            }

            .feature-card h4 {
                font-size: 1.1rem;
            }

            .feature-card p {
                font-size: 14px;
            }

            /* 关于我们 */
            .about {
                padding: 60px 0;
            }

            .about-image {
                padding: 40px !important;
                margin-bottom: 30px;
            }

            .about-image svg {
                width: 150px !important;
                height: 150px !important;
            }

            .about-content h2 {
                font-size: 1.8rem;
                text-align: center;
            }

            .about-content p {
                font-size: 1rem;
                text-align: center;
            }

            .about-list li {
                font-size: 1rem;
                padding: 8px 0;
            }

            /* 下载区域 */
            .download-section {
                padding: 60px 0;
            }

            .download-section h2 {
                font-size: 1.8rem;
            }

            .download-section p {
                font-size: 1rem;
                margin-bottom: 30px;
            }

            .download-buttons {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }

            .btn-download-lg {
                padding: 15px 40px;
                font-size: 16px;
                width: 80%;
                max-width: 280px;
                justify-content: center;
            }

            .btn-download-lg i {
                font-size: 24px;
            }

            /* 联系我们 */
            .contact {
                padding: 60px 0;
            }

            .contact .row {
                display: flex;
                flex-wrap: wrap;
            }

            .contact .col-md-3 {
                flex: 0 0 50%;
                max-width: 50%;
            }

            .contact-item {
                padding: 15px 10px;
            }

            .contact-icon {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }

            .contact-item h5 {
                font-size: 14px;
            }

            .contact-item p {
                font-size: 12px;
                word-break: break-all;
            }

            /* 页脚响应式样式已移至 includes/footer.php */
        }

        /* 响应式 - 小手机 */
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }

            .hero p {
                font-size: 0.9rem;
            }

            .phone-mockup {
                max-width: 280px;
            }

            .stat-number {
                font-size: 1.2rem;
            }

            .stat-label {
                font-size: 11px;
            }

            .section-title h2 {
                font-size: 1.5rem;
            }

            .feature-card {
                padding: 20px 15px;
            }

            .btn-download-lg {
                width: 90%;
                padding: 12px 20px;
                font-size: 14px;
            }

            .about-content h2,
            .download-section h2 {
                font-size: 1.5rem;
            }

            .contact-icon {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }

            .contact-item h5 {
                font-size: 13px;
            }

            .contact-item p {
                font-size: 11px;
            }
        }

        /* 车机屏幕样式 */
        .car-screen-container {
            max-width: 1600px;
            width: 100%;
            margin: 0 auto;
        }

        .car-screen {
            background: #1a1a2e;
            border-radius: 20px;
            padding: 15px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            border: 3px solid #fff;
        }

        .car-screen-header {
            background: #16213e;
            padding: 12px 20px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            margin-bottom: 12px;
            gap: 10px;
        }

        .car-screen-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            white-space: nowrap;
        }

        .car-screen-center-label {
            flex: 1;
            text-align: center;
            color: #d8deff;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .car-screen-time {
            color: #aaa;
            font-size: 14px;
            white-space: nowrap;
        }

        .car-screen-content {
            background: #0a0a15;
            border-radius: 10px;
            padding: 20px 12px 14px;
            min-height: 420px;
        }

        .app-categories {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            overflow-x: auto;
            padding: 5px;
            scrollbar-width: thin;
            scrollbar-color: rgba(102, 126, 234, 0.5) transparent;
        }

        .app-categories::-webkit-scrollbar {
            height: 4px;
        }

        .app-categories::-webkit-scrollbar-track {
            background: transparent;
        }

        .app-categories::-webkit-scrollbar-thumb {
            background: rgba(102, 126, 234, 0.5);
            border-radius: 2px;
        }

        .app-category-btn {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            cursor: pointer;
            transition: all 0.3s;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .app-category-btn:hover {
            background: rgba(102, 126, 234, 0.3);
            border-color: rgba(102, 126, 234, 0.5);
        }

        .app-category-btn.active {
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-color: transparent;
            font-weight: 600;
        }

        .app-category-btn i {
            font-size: 11px;
        }

        .app-grid-wrapper {
            position: relative;
            padding: 0 8px;
        }

        .app-grid {
            display: grid;
            grid-template-columns: repeat(8, minmax(0, 1fr));
            gap: 2px;
            min-height: 252px;
        }

        .app-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            cursor: pointer;
            transition: transform 0.3s;
            min-height: 80px;
            justify-content: center;
        }

        .app-item:hover {
            transform: scale(1.04);
        }

        .app-empty-state {
            grid-column: 1 / -1;
            min-height: 252px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9aa3bf;
            font-size: 14px;
        }

        .app-page-indicator {
            text-align: center;
            margin-top: 10px;
            color: #96a0c5;
            font-size: 12px;
            letter-spacing: 0.5px;
        }

        .app-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background-size: cover;
            background-position: center;
            background-color: #2d3436;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .app-icon-add {
            background: #4a5568;
            border: 2px dashed #667eea;
        }

        .app-icon-add i {
            font-size: 28px;
            color: #667eea;
        }

        .app-name {
            color: #fff;
            font-size: 8px;
            text-align: center;
            max-width: 44px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .app-nav-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(102, 126, 234, 0.8);
            border: none;
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            z-index: 10;
        }

        .app-nav-btn:hover {
            background: rgba(102, 126, 234, 1);
            transform: translateY(-50%) scale(1.1);
        }

        .app-nav-prev {
            left: 0;
        }

        .app-nav-next {
            right: 0;
        }

        /* 应用详情弹窗 */
        .app-detail-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.8);
            z-index: 9999;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .app-detail-modal.active {
            display: flex;
        }

        .app-detail-content {
            background: #fff;
            border-radius: 20px;
            max-width: 500px;
            width: 100%;
            max-height: 80vh;
            overflow-y: auto;
            position: relative;
        }

        .app-detail-header {
            padding: 30px;
            border-bottom: 1px solid #eee;
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .app-detail-icon {
            width: 80px;
            height: 80px;
            border-radius: 18px;
            background-size: cover;
            background-position: center;
            background-color: #e9ecef;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .app-detail-info {
            flex: 1;
        }

        .app-detail-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #222;
        }

        .app-detail-meta {
            display: flex;
            gap: 15px;
            color: #666;
            font-size: 14px;
            flex-wrap: wrap;
        }

        .app-detail-body {
            padding: 30px;
        }

        .app-detail-section {
            margin-bottom: 25px;
        }

        .app-detail-section h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #333;
        }

        .app-detail-section p {
            color: #666;
            line-height: 1.6;
        }

        .app-detail-close {
            position: absolute;
            top: 15px;
            right: 15px;
            background: #f0f0f0;
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            font-size: 20px;
            color: #666;
        }

        .app-detail-close:hover {
            background: #e0e0e0;
            transform: rotate(90deg);
        }

        @media (max-width: 768px) {
            .car-screen-container {
                max-width: 100%;
            }

            .car-screen {
                padding: 10px;
            }

            .car-screen-header {
                padding: 10px 12px;
            }

            .car-screen-title {
                font-size: 14px;
            }

            .car-screen-center-label {
                font-size: 12px;
            }

            .car-screen-time {
                font-size: 12px;
            }

            .car-screen-content {
                padding: 14px 10px 10px;
                min-height: 280px;
            }

            .app-grid {
                grid-template-columns: repeat(4, minmax(0, 1fr));
                gap: 6px;
                min-height: 184px;
            }

            .app-empty-state {
                min-height: 184px;
            }

            .app-item {
                min-height: 70px;
                min-width: 0;
            }

            .app-icon {
                width: 48px;
                height: 48px;
            }

            .app-name {
                font-size: 9px;
                max-width: 56px;
            }

            .app-categories {
                gap: 6px;
                margin-bottom: 10px;
            }

            .app-category-btn {
                padding: 5px 12px;
                font-size: 11px;
            }

            .app-grid-wrapper {
                padding: 0 18px;
            }

            .app-nav-btn {
                width: 28px;
                height: 28px;
                font-size: 12px;
            }

            .app-detail-header {
                padding: 20px;
            }

            .app-detail-icon {
                width: 60px;
                height: 60px;
            }

            .app-detail-name {
                font-size: 1.2rem;
            }

            .app-detail-body {
                padding: 20px;
            }
        }

        /* 全部应用模态框样式（车机模型） */
        .all-apps-model-controls {
            margin-bottom: 15px;
        }

        .all-apps-model-title {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            text-align: center;
        }

        .all-apps-categories {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            overflow-x: auto;
            padding: 5px;
            scrollbar-width: thin;
            scrollbar-color: rgba(102, 126, 234, 0.5) transparent;
        }

        .all-apps-categories::-webkit-scrollbar {
            height: 4px;
        }

        .all-apps-categories::-webkit-scrollbar-track {
            background: transparent;
        }

        .all-apps-categories::-webkit-scrollbar-thumb {
            background: rgba(102, 126, 234, 0.5);
            border-radius: 2px;
        }

        .all-apps-category-btn {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            cursor: pointer;
            transition: all 0.3s;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .all-apps-category-btn:hover {
            background: rgba(102, 126, 234, 0.3);
            border-color: rgba(102, 126, 234, 0.5);
        }

        .all-apps-category-btn.active {
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-color: transparent;
            color: #fff;
            font-weight: 600;
        }

        .all-apps-model-search {
            position: relative;
        }

        .all-apps-model-search input {
            width: 100%;
            padding: 10px 42px 10px 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            font-size: 13px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .all-apps-model-search input::placeholder {
            color: #9ea7c4;
        }

        .all-apps-model-search input:focus {
            outline: none;
            border-color: rgba(102, 126, 234, 0.8);
        }

        .all-apps-model-search i {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #9ea7c4;
            font-size: 13px;
        }

        .all-apps-model-grid {
            display: grid;
            grid-template-columns: repeat(8, minmax(0, 1fr));
            gap: 2px;
            min-height: 252px;
        }

        .all-apps-model-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            cursor: pointer;
            transition: transform 0.3s;
            min-height: 80px;
            justify-content: center;
        }

        .all-apps-model-item:hover {
            transform: scale(1.04);
        }

        .all-apps-empty-state {
            grid-column: 1 / -1;
            min-height: 252px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9aa3bf;
            font-size: 14px;
        }

        .all-apps-page-indicator {
            text-align: center;
            margin-top: 10px;
            color: #96a0c5;
            font-size: 12px;
            letter-spacing: 0.5px;
        }

        .all-apps-detail-overlay {
            display: none;
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 21, 0.92);
            border-radius: 10px;
            z-index: 40;
            align-items: center;
            justify-content: center;
            padding: 16px;
        }

        .all-apps-detail-overlay.active {
            display: flex;
        }

        .all-apps-detail-card {
            width: 100%;
            max-width: 560px;
            background: #121a30;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 14px;
            overflow: hidden;
            position: relative;
        }

        .all-apps-detail-header {
            display: flex;
            gap: 16px;
            padding: 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .all-apps-detail-info {
            flex: 1;
            min-width: 0;
        }

        .all-apps-detail-name {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .all-apps-detail-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            color: #aeb8dc;
            font-size: 12px;
        }

        .all-apps-detail-body {
            padding: 18px;
            color: #d5ddf8;
            font-size: 14px;
            line-height: 1.7;
            max-height: 260px;
            overflow-y: auto;
        }

        .all-apps-detail-close {
            position: absolute;
            top: 10px;
            right: 10px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: none;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 18px;
            line-height: 1;
            cursor: pointer;
        }

        .all-apps-detail-close:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .all-apps-close-btn {
            top: -14px;
            right: -14px;
            background: rgba(240, 240, 240, 0.95);
            z-index: 30;
        }

        @media (max-width: 768px) {
            .all-apps-close-btn {
                top: -10px;
                right: -10px;
            }

            .all-apps-model-title {
                font-size: 1.2rem;
            }

            .all-apps-category-btn {
                padding: 5px 12px;
                font-size: 11px;
            }

            .all-apps-model-grid {
                grid-template-columns: repeat(4, minmax(0, 1fr));
                gap: 12px;
                min-height: 184px;
            }

            .all-apps-empty-state {
                min-height: 184px;
            }
        }

        /* 文章卡片样式 */
        .articles-section {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .articles-section:nth-child(even) {
            background: #fff;
        }

        .article-card-link {
            text-decoration: none;
            color: inherit;
            display: block;
            height: 100%;
        }

        .article-card-link:hover {
            text-decoration: none;
            color: inherit;
        }

        .article-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }

        .article-cover {
            width: 100%;
            height: 200px;
            background-size: cover;
            background-position: center;
            background-color: #e9ecef;
        }

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

        .article-content h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: #333;
            font-weight: 600;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-content p {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .article-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #999;
            padding-top: 15px;
            border-top: 1px solid #eee;
            flex-wrap: wrap;
            gap: 10px;
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-meta i {
            font-size: 0.8rem;
        }

        /* 文章详情模态框样式 */
        .modal-body {
            max-height: 70vh;
            overflow-y: auto;
        }

        .article-detail {
            padding: 20px 0;
        }

        .article-detail img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 15px 0;
        }

        .article-detail video {
            max-width: 100%;
            border-radius: 8px;
            margin: 15px 0;
        }

        .article-detail-meta {
            display: flex;
            gap: 20px;
            padding: 15px 0;
            border-bottom: 2px solid #eee;
            margin-bottom: 20px;
            color: #666;
            font-size: 0.9rem;
        }

        .article-detail-content {
            line-height: 1.8;
            color: #333;
            font-size: 1rem;
        }

        @media (max-width: 768px) {
            .articles-section {
                padding: 40px 0;
            }

            .article-cover {
                height: 150px;
            }

            .article-content {
                padding: 15px;
            }

            .article-content h4 {
                font-size: 1rem;
            }

            .article-meta {
                font-size: 0.8rem;
            }
        }