/* 行业概况 */
        .industry-overview {
            padding: 100px 40px;
            background: var(--white);
        }

        .overview-container {
            max-width: 1400px;
            margin: 0 auto;
        }

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

        .section-tag {
            display: inline-block;
            padding: 8px 20px;
            background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(74, 144, 226, 0.1) 100%);
            color: var(--primary-blue);
            font-size: 14px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 20px;
        }

        .section-title {
            font-size: 42px;
            font-weight: bold;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
        }

        .overview-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
        }

        .overview-text {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-primary);
        }

        .overview-text p {
            margin-bottom: 20px;
        }

        .overview-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px;
            background: var(--gray-light);
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .feature-item:hover {
            background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(74, 144, 226, 0.1) 100%);
            transform: translateX(5px);
        }

        .feature-icon {
            font-size: 24px;
        }

        .feature-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .overview-visual {
            position: relative;
        }

        .visual-main {
            background: linear-gradient(135deg, var(--gray-light) 0%, var(--gray-medium) 100%);
            border-radius: 16px;
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-heavy);
        }

        .visual-main::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 102, 204, 0.2) 0%, transparent 70%);
            border-radius: 50%;
        }

        .visual-icon {
            font-size: 80px;
            z-index: 10;
        }

        .visual-decor {
            position: absolute;
            background: var(--white);
            border-radius: 12px;
            padding: 20px;
            box-shadow: var(--shadow-medium);
            z-index: 20;
        }

        .visual-decor.top-right {
            top: 20px;
            right: 20px;
        }

        .visual-decor.bottom-left {
            bottom: 20px;
            left: 20px;
        }

        .decor-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .decor-value {
            font-size: 20px;
            font-weight: bold;
            color: var(--primary-blue);
        }

        /* 应用场景 */
        .application-scenarios {
            padding: 100px 40px;
            background: var(--gray-light);
        }

        .scenarios-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 60px;
        }

        .scenario-card {
            background: var(--white);
            border-radius: 16px;
            padding: 30px;
            box-shadow: var(--shadow-light);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .scenario-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-heavy);
        }

        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .scenario-card:hover::before {
            transform: scaleX(1);
        }

        .scenario-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 20px;
            transition: transform 0.3s ease;
        }

        .scenario-card:hover .scenario-icon {
            transform: scale(1.1) rotate(5deg);
        }

        .scenario-title {
            font-size: 20px;
            font-weight: bold;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .scenario-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .scenario-features {
            list-style: none;
            border-top: 1px solid var(--gray-medium);
            padding-top: 20px;
        }

        .scenario-features li {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
            padding-left: 20px;
            position: relative;
        }

        .scenario-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary-blue);
            font-weight: bold;
        }

        /* 技术优势 */
        .tech-advantages {
            padding: 100px 40px;
            background: var(--white);
        }

        .advantages-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            margin-top: 60px;
        }

        .advantage-item {
            display: flex;
            gap: 30px;
            padding: 40px;
            background: linear-gradient(135deg, var(--gray-light) 0%, var(--white) 100%);
            border-radius: 16px;
            border: 1px solid var(--gray-medium);
            transition: all 0.3s ease;
        }

        .advantage-item:hover {
            border-color: var(--secondary-blue);
            box-shadow: var(--shadow-medium);
            transform: translateY(-5px);
        }

        .advantage-number {
            font-size: 48px;
            font-weight: bold;
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            min-width: 60px;
        }

        .advantage-content h3 {
            font-size: 22px;
            font-weight: bold;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .advantage-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 产品方案 */
        .product-solutions {
            padding: 100px 40px;
            background: var(--gray-light);
        }

        .solutions-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .tab-btn {
            padding: 14px 32px;
            background: var(--white);
            color: var(--text-secondary);
            border: 2px solid var(--gray-medium);
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .tab-btn:hover,
        .tab-btn.active {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            color: var(--white);
            border-color: transparent;
            transform: translateY(-3px);
        }

        .solution-card {
            background: var(--white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-light);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .solution-visual {
            background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
            padding: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .solution-visual::before {
            content: '';
            position: absolute;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .solution-icon {
            font-size: 100px;
            z-index: 10;
            transition: transform 0.3s ease;
        }

        .solution-card:hover .solution-icon {
            transform: scale(1.1) rotate(-5deg);
        }

        .solution-info {
            padding: 50px;
        }

        .solution-badge {
            display: inline-block;
            padding: 6px 16px;
            background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(74, 144, 226, 0.1) 100%);
            color: var(--primary-blue);
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 20px;
        }

        .solution-name {
            font-size: 28px;
            font-weight: bold;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .solution-model {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 30px;
            font-family: monospace;
        }

        .solution-specs {
            margin-bottom: 30px;
        }

        .spec-row {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--gray-medium);
        }

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

        .spec-value {
            font-size: 14px;
            color: var(--text-primary);
            font-weight: 600;
        }

        .solution-actions {
            display: flex;
            gap: 16px;
        }

        .action-btn {
            padding: 12px 28px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .action-btn.primary {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            color: var(--white);
            box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
        }

        .action-btn.primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 102, 204, 0.4);
        }

        .action-btn.secondary {
            background: var(--white);
            color: var(--primary-blue);
            border: 2px solid var(--primary-blue);
        }

        .action-btn.secondary:hover {
            background: var(--primary-blue);
            color: var(--white);
        }

        /* 成功案例 */
        .success-cases {
            padding: 100px 40px;
            background: var(--white);
        }

        .cases-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            margin-top: 60px;
        }

        .case-card {
            background: var(--white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all 0.4s ease;
            border: 1px solid var(--gray-medium);
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-heavy);
            border-color: var(--secondary-blue);
        }

        .case-image {
            height: 200px;
            background: linear-gradient(135deg, var(--gray-light) 0%, var(--gray-medium) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 60px;
            position: relative;
        }

        .case-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.1));
        }

        .case-content {
            padding: 30px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--gray-light);
            color: var(--text-secondary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .case-title {
            font-size: 20px;
            font-weight: bold;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .case-metrics {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            padding-top: 20px;
            border-top: 1px solid var(--gray-medium);
        }

        .case-metric {
            text-align: center;
        }

        .metric-value {
            font-size: 24px;
            font-weight: bold;
            color: var(--primary-blue);
            margin-bottom: 4px;
        }

        .metric-label {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* CTA区域 */
        .cta-section {
            padding: 100px 40px;
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
        }

        .cta-container {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .cta-title {
            font-size: 42px;
            font-weight: bold;
            color: var(--white);
            margin-bottom: 20px;
        }

        .cta-text {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 40px;
            line-height: 1.6;
        }

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

        /* 页脚 */
        .footer {
            background: var(--dark-blue);
            color: var(--white);
            padding: 80px 40px 30px;
        }

        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 60px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-section h3 {
            font-size: 18px;
            font-weight: bold;
            margin-bottom: 24px;
            color: var(--white);
        }

        .footer-section p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary-blue);
        }

        .footer-bottom {
            max-width: 1400px;
            margin: 0 auto;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-copyright {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .overview-content {
                grid-template-columns: 1fr;
                gap: 50px;
            }

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

            .advantages-grid {
                grid-template-columns: 1fr;
            }

            .solution-card {
                grid-template-columns: 1fr;
            }

            .case-grid {
                grid-template-columns: 1fr;
            }

            .footer-content {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }

            .nav-links {
                display: none;
            }

            .section-title {
                font-size: 32px;
            }

            .overview-text {
                font-size: 15px;
            }

            .overview-features {
                grid-template-columns: 1fr;
            }

            .scenarios-grid {
                grid-template-columns: 1fr;
            }

            .advantage-item {
                padding: 30px;
                gap: 20px;
            }

            .solution-card {
                grid-template-columns: 1fr;
            }

            .solution-visual,
            .solution-info {
                padding: 40px 20px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 20px;
                padding: 30px 20px;
            }

            .cta-title {
                font-size: 28px;
            }
        }

        @media (max-width: 480px) {
            .scenario-card {
                padding: 24px;
            }

            .case-card {
                border-radius: 12px;
            }

            .case-content {
                padding: 24px;
            }

            .case-metrics {
                grid-template-columns: 1fr;
            }
        }