/* 重置样式和全局设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 颜色变量 */
:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #6b7280;
    --white-color: #ffffff;
    --success-color: #10b981;
    --gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
}

.text-primary {
    color: var(--primary-color);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white-color);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo .logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}

.nav-logo .logo-text {
    display: flex;
    flex-direction: column;
}

.nav-logo .brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1.2;
}

.nav-logo .chinese-name {
    font-size: 0.85rem;
    color: var(--gray-color);
    font-weight: 500;
}

.nav-logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4rem;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.company-name-cn {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    display: block;
    white-space: nowrap;
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 2rem;
    line-height: 1.6;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-illustration {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.8;
}

.tech-illustration i {
    animation: float 3s ease-in-out infinite;
}

.tech-illustration i:nth-child(2) {
    animation-delay: -1s;
}

.tech-illustration i:nth-child(3) {
    animation-delay: -2s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* Hero services styles - 替换之前的capabilities样式 */
.hero-services {
    margin-top: 3rem;
    width: 100%;
    max-width: 1400px;
    /* 增加最大宽度以减少空白 */
}

.hero-services h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 2rem;
}

.hero-services .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    /* 增加最小宽度 */
    gap: 2rem;
    padding: 0 1rem;
    /* 增加左右内边距 */
}

.hero-services .service-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.hero-services .service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.15);
}

.hero-services .service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.8rem;
    color: var(--white-color);
}

.hero-services .service-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.hero-services .service-card p {
    color: var(--gray-color);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Hero容器优化 - 减少空白 */
.hero-container {
    max-width: 1400px;
    /* 增加最大宽度 */
    margin: 0 auto;
    padding: 0 1rem;
    /* 减少左右padding */
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 3rem;
    /* 稍微减少间距 */
}

/* Hero统计数据优化 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: 600;
}

/* 通用章节样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: var(--white-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-color);
}

.about-text p {
    margin-bottom: 1.5rem;
}

.timeline {
    position: relative;
}

.timeline h3 {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: 2rem;
    text-align: center;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 60px;
    top: 80px;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    position: relative;
}

.timeline-year {
    background: var(--primary-color);
    color: var(--white-color);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.timeline-content h4 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* 核心服务 */
.services {
    padding: 80px 0;
    background: var(--light-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white-color);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--white-color);
}

.service-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* 项目案例 */
.projects {
    padding: 80px 0;
    background: var(--white-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--white-color);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.project-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white-color);
    margin-bottom: 1.5rem;
}

.project-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.project-card p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* 工程师网格布局 - 3个人一行 */
.engineers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.engineer-card {
    background: var(--white-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.engineer-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
    border: 3px solid rgba(37, 99, 235, 0.1);
    transition: all 0.3s ease;
}

.engineer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.engineer-card:hover .engineer-avatar {
    transform: scale(1.05);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.engineer-card:hover .engineer-avatar img {
    transform: scale(1.1);
}

.engineer-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.15);
}

.engineer-info h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.engineer-info .position {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.engineer-info .experience {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.engineer-info .skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
}

.project-details {
    text-align: left;
    margin-top: 0.8rem;
}

.project-details p {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--gray-color);
    margin-bottom: 0.6rem;
}

.project-details p:last-child {
    margin-bottom: 0;
}

.project-details strong {
    color: var(--dark-color);
    font-weight: 600;
}

.engineer-info .skill {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.6rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.engineer-info .projects {
    color: var(--gray-color);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 团队高亮区域 */
.team-highlight {
    margin-bottom: 4rem;
}

.team-highlight h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--dark-color);
    text-align: center;
    margin-bottom: 2.5rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .engineers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .engineers-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .engineer-card {
        padding: 1.2rem;
    }

    .engineer-info h4 {
        font-size: 1.2rem;
    }
}

/* 团队分层架构样式 */
.team-structure-section {
    margin-top: 4rem;
}

.team-structure-section h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--dark-color);
    text-align: center;
    margin-bottom: 2.5rem;
}

/* 团队实力 */
.team {
    padding: 80px 0;
    background: var(--light-color);
}

.team-overview {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 4rem;
}

.team-stat {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

.team-departments {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.department-card {
    background: var(--white-color);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.department-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.department-card h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.team-count {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.department-card p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* 联系我们 */
.contact {
    padding: 80px 0;
    background: var(--white-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white-color);
    flex-shrink: 0;
}

.contact-details h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--gray-color);
    line-height: 1.6;
}

.contact-form {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: var(--white-color);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--white-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
        padding: 0 0.5rem;
        /* 移动端进一步减少padding */
    }

    .hero-services .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0;
        /* 移动端去除左右padding */
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 40px;
    }

    .timeline-year {
        width: 60px;
        height: 60px;
        font-size: 0.9rem;
    }

    .team-overview {
        flex-direction: column;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .services-grid,
    .projects-grid,
    .team-departments {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .service-card,
    .project-card,
    .department-card {
        padding: 1.5rem;
    }
}

/* Hero新增样式 */
.hero-brand {
    margin-bottom: 2rem;
}

.hero-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo-icon-large {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.company-en {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Inter', sans-serif;
}

/* Hero Showcase - 右侧产品展示区域 */
.hero-showcase {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.product-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.product-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
    border-color: var(--primary-color);
}

.main-product {
    background: var(--gradient);
    color: white;
}

.main-product .product-placeholder span {
    color: white;
}

.product-placeholder {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.product-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.main-product .product-placeholder i {
    color: white;
}

.product-placeholder span {
    font-weight: 600;
    color: var(--dark-color);
}

/* 客户展示区域更新样式 */
.client-categories {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.client-category {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.category-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 0.5rem;
}

.client-category h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.8rem;
}

.client-logos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.more-clients {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.more-clients:hover {
    color: var(--accent-color);
}

/* 合作伙伴section样式 */
.partners {
    padding: 80px 0;
    background: var(--light-color);
}

.partners-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.partner-category {
    background: var(--white-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.partner-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.partner-category .category-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.category-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
    margin: 0;
}

.partner-logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.partner-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 0.5rem;
    background: var(--light-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    min-height: 80px;
    position: relative;
}

.partner-logo:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

/* SVG公司logo样式 */
.company-svg {
    width: 100%;
    height: 40px;
    object-fit: contain;
    opacity: 0.8;
    transition: all 0.3s ease;
    filter: grayscale(0%);
    /* 默认显示彩色 */
}

.partner-logo:hover .company-svg {
    opacity: 1;
    transform: scale(1.1);
}

.partner-logo img {
    max-width: 100%;
    max-height: 40px;
    object-fit: contain;
    margin-bottom: 0.5rem;
}

.logo-text {
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    color: var(--dark-color);
    transition: color 0.3s ease;
}

.partner-logo:hover .logo-text {
    color: white;
}

/* 项目案例图片轮播样式 */
.project-images {
    position: relative;
    height: 250px;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
}

.project-gallery {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    transition: transform 0.5s ease;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    flex-shrink: 0;
    transition: opacity 0.3s ease;
}

/* 轮播导航点 */
.gallery-nav {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 2;
}

.nav-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.nav-dot.active {
    background: white;
    transform: scale(1.2);
}

.nav-dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

/* 轮播箭头 */
.gallery-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-images:hover .gallery-arrow {
    opacity: 1;
}

.gallery-arrow:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: translateY(-50%) scale(1.1);
}

.gallery-arrow.prev {
    left: 15px;
}

.gallery-arrow.next {
    right: 15px;
}

/* 图片计数器 */
.gallery-counter {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    z-index: 2;
}

/* 图片占位符样式 */
.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--light-color) 0%, #e2e8f0 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-color);
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.image-placeholder span {
    font-size: 1rem;
    font-weight: 500;
}

.project-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 更新项目卡片布局 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.project-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动指示器 */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient);
    z-index: 9999;
    transition: width 0.3s ease;
}