* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

body {
    background-color: #f5f5f7;
    color: #1d1d1f;
    line-height: 1.4;
    overflow-x: hidden;
}

/* 英雄区域样式 */
.hero {
    position: relative;
    padding-top: 180px;
    /* 增加了padding-top值，防止内容被导航栏遮挡 */
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.3) 100%), url('../R/PixPin_2025-06-26_00-02-05.png');
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    color: white;
    /* 设置为白色文字以在深色背景下获得更好的可读性 */
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 20px;
}

.hero-text {
    color: white;
    text-align: center;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: -0.5px;
    color: white;
    /* 确保标题是白色 */
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    animation: fadeInDown 1s ease-out;
}

.hero-subtitle {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 30px;
    line-height: 1.2;
    letter-spacing: -0.3px;
    color: #f0f0f0;
    /* 稍微柔和一点的白色 */
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-tagline {
    font-size: 1.3rem;
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
    color: #e0e0e0;
    /* 柔和的浅灰色，确保在背景上可读 */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    animation: fadeIn 1s ease-out 0.6s both;
}

/* 强制确保背景图片的定义 */
section.hero {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.3) 100%), url('../R/PixPin_2025-06-26_00-02-05.png') !important;
    background-size: cover !important;
    background-position: center !important;
}

/* 滚动淡入效果 */
.scroll-fade {
    opacity: 1;
    transform: translateY(0);
}

/* 动画定义 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* 苹果风格导航栏 */
.apple-navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 0 10px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 48px;
}

.nav-logo {
    font-size: 20px;
    font-weight: 700;
    color: #000;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.nav-logo i {
    margin-right: 8px;
    color: #0071e3;
}

.nav-links {
    display: flex;
    list-style: none;
    height: 100%;
    background: transparent;
    /* 默认状态下透明背景 */
}

.nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 48px;
    left: 0;
    width: 100%;
    background: rgba(245, 245, 247, 0.95);
    /* 确保有浅灰色背景 */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    z-index: 1002;
    border-radius: 0 0 20px 20px;
}

.nav-item {
    position: relative;
    height: 100%;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0 16px;
    height: 100%;
    color: #1d1d1f;
    text-decoration: none;
    font-size: 13px;
    font-weight: 400;
    transition: color 0.3s;
    position: relative;
}

.nav-link:hover {
    color: #0071e3;
}

/* 宽幅下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 100%;
    width: 900px;
    /* 固定宽度而不是全屏宽度 */
    max-width: 900px;
    /* 限制最大宽度 */
    border-radius: 0 0 16px 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 20px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1001;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow-x: auto;
    /* 添加横向滚动条 */
    max-height: 60vh;
    /* 设置最大高度，超过则出现纵向滚动 */
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content {
    width: 100%;
    /* 内容宽度适应容器 */
    display: flex;
    padding: 0 40px;
}

.dropdown-column {
    flex: 1;
    min-width: 200px;
    padding: 0 20px;
}

.dropdown-column h3 {
    font-size: 16px;
    font-weight: 600;
    color: #86868b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #d2d2d7;
}

.dropdown-item {
    display: block;
    padding: 10px 0;
    color: #1d1d1f;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
}

.dropdown-item:hover {
    color: #0071e3;
}

.dropdown-item i {
    margin-right: 10px;
    width: 16px;
    text-align: center;
}

.dropdown-divider {
    height: 1px;
    background-color: #d2d2d7;
    margin: 12px 0;
}

/* 二级下拉菜单 */
.dropdown-submenu {
    position: relative;
}

.dropdown-submenu .submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background: white;
    min-width: 250px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s ease;
    z-index: 1002;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.dropdown-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.nav-actions {
    display: flex;
    align-items: center;
}

.nav-icon {
    margin-left: 16px;
    color: #1d1d1f;
    font-size: 16px;
    cursor: pointer;
    transition: color 0.3s;
}

.nav-icon:hover {
    color: #0071e3;
}

/* 滚动条样式 */
.dropdown-menu::-webkit-scrollbar {
    height: 8px;
}

.dropdown-menu::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.dropdown-menu::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-links.mobile-open {
        display: flex;
    }

    .nav-icon {
        display: block;
    }
}

/* 英雄区域 */
.hero {
    padding-top: 180px;
    /* 增加了padding-top值，防止内容被导航栏遮挡 */
    text-align: center;
    background: linear-gradient(135deg, #ffffff 0%, #f5f5f7 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    color: white;
    /* 设置为白色文字以在深色背景下获得更好的可读性 */
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.05) 100%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: -0.5px;
    color: white;
    /* 确保标题是白色 */
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    /* 使用更强的文字阴影以确保在背景上可见 */
}

.hero-subtitle {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 30px;
    line-height: 1.2;
    letter-spacing: -0.3px;
    color: #f0f0f0;
    /* 稍微柔和一点的白色 */
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

.hero-tagline {
    font-size: 1.3rem;
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
    color: #e0e0e0;
    /* 柔和的浅灰色，确保在背景上可读 */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-highlight {
    display: inline-flex;
    align-items: center;
    padding: 14px 30px;
    background: rgba(0, 0, 0, 0.7);
    /* 改为深色背景提高对比度 */
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 30px;
}

.hero-highlight:hover {
    background: rgba(0, 0, 0, 0.8);
    /* 悬停时更深的背景 */
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.hero-highlight i {
    color: #0edf7e;
    /* 保持图标颜色 */
}

.hero-highlight,
.hero-highlight span {
    color: white;
    /* 确保文字为白色 */
}

.hero-buttons {
    margin-top: 20px;
    display: flex;
    gap: 20px;
    justify-content: center;
}

.hero-btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.primary-btn {
    background: #0071e3;
    /* 使用品牌蓝色背景 */
    color: white;
    /* 白色文字 */
    font-weight: 600;
}

.primary-btn:hover {
    background: #005bb5;
    /* 悬停时加深蓝色 */
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.secondary-btn {
    background: transparent;
    border: 2px solid #0071e3;
    /* 使用品牌蓝色边框 */
    color: #0071e3;
    /* 文字也是蓝色 */
}

.secondary-btn:hover {
    background: rgba(0, 113, 227, 0.1);
    /* 悬停时添加浅蓝色背景 */
    transform: translateY(-3px);
}

/* 波浪底部效果 */
.wave-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1200 120" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="none"><path d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 内容区域 */
.content-section {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 20px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #1d1d1f;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    margin-bottom: 60px;
    color: #515154;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.card {
    background-color: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.card-image {
    height: 220px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.card-content {
    padding: 24px;
}

.card-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1d1d1f;
}

.card-description {
    font-size: 15px;
    color: #515154;
    line-height: 1.5;
    margin-bottom: 20px;
}

.card-link {
    color: #0071e3;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.card-link i {
    margin-left: 6px;
    transition: transform 0.3s;
}

.card-link:hover i {
    transform: translateX(4px);
}

/* 服务流程样式 */
.how-it-works-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 80px 0;
    margin: 80px 0;
}

.service-process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.service_box {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0edf7e 0%, #007bff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.service_box:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 20px rgba(14, 223, 126, 0.3);
}

.title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1d1d1f;
}

.text {
    font-size: 15px;
    color: #515154;
    line-height: 1.5;
}

/* 技术优势样式 */
.tech-advantages-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    margin: 80px 0;
}

.tech-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.tech-advantage-card {
    background: white;
    border-radius: 18px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 100%;
}

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

.tech-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0edf7e 0%, #007bff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.tech-advantage-card:hover .tech-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 20px rgba(14, 223, 126, 0.3);
}

.tech-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 15px;
}

.feature-tag {
    background: rgba(14, 223, 126, 0.1);
    color: #0edf7e;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: rgba(14, 223, 126, 0.2);
    transform: translateY(-2px);
}

/* 客户案例样式 */
.customer-case-section {
    padding: 80px 0;
    margin: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

.case-study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.case-study-card {
    background: white;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.case-study-image {
    height: 220px;
    overflow: hidden;
}

.case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.case-study-card:hover .case-study-image img {
    transform: scale(1.05);
}

.case-study-content {
    padding: 24px;
}

.case-study-content h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1d1d1f;
}

.case-study-content p {
    font-size: 15px;
    color: #515154;
    line-height: 1.5;
    margin-bottom: 20px;
}

.case-study-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 113, 227, 0.1);
    color: #0071e3;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.highlight-item i {
    color: #0071e3;
    font-size: 0.9rem;
}

/* 合作伙伴样式 */
.partners-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.partner-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.partner-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-width: 120px;
}

.partner-logo i {
    font-size: 2.5rem;
    color: #0071e3;
    margin-bottom: 10px;
}

.partner-logo span {
    font-size: 1rem;
    font-weight: 500;
    color: #1d1d1f;
}

/* 为什么选择我们样式 */
.why-us-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    margin: 80px 0;
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.why-us-card {
    background: white;
    border-radius: 18px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 100%;
}

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

.why-us-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0edf7e 0%, #007bff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.why-us-card:hover .why-us-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 20px rgba(14, 223, 126, 0.3);
}

.why-us-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1d1d1f;
}

.why-us-card p {
    font-size: 15px;
    color: #515154;
    line-height: 1.5;
}

/* CTA区域样式 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0071e3 0%, #005bb5 100%);
    color: white;
    text-align: center;
}

.cta-content .section-title {
    color: white;
    margin-bottom: 20px;
}

.cta-content .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto 40px;
}

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

.cta-btn {
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.primary-btn {
    background: white;
    color: #0071e3;
}

.primary-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.secondary-btn {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

/* 客户评价样式 */
.testimonials-section {
    padding: 80px 0;
    margin: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

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

.testimonials-3d-container {
    position: relative;
    height: 500px;
    width: 100%;
    overflow: hidden;
    border-radius: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin: 40px 0;
}

#testimonials-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: transparent;
}

.testimonial-content-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: 80%;
    max-width: 600px;
}

.testimonial-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
}

.testimonial-card.active {
    opacity: 1;
    transform: translateY(0);
}

.testimonial-info {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.client-name {
    color: #333;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 5px;
}

.client-position {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.ratings {
    margin-bottom: 15px;
}

.ratings i {
    color: #ddd;
    font-size: 16px;
    margin: 0 1px;
}

.ratings i.active {
    color: #ffc107;
}

.testimonial-text {
    color: #555;
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
    font-style: italic;
}

.testimonial-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 20px;
}

.control-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.testimonial-indicators {
    display: flex;
    gap: 8px;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    transform: scale(1.2);
}

/* 行业应用样式 */
.industry-applications-section {
    padding: 80px 0;
    margin: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.industry-card {
    background: white;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
}

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

.industry-image {
    height: 200px;
    position: relative;
    overflow: hidden;
}

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

.industry-card:hover .industry-image img {
    transform: scale(1.1);
}

.industry-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.industry-card:hover .industry-overlay {
    opacity: 1;
}

.industry-icon {
    width: 60px;
    height: 60px;
    background: rgba(14, 223, 126, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.industry-card:hover .industry-icon {
    transform: scale(1);
}

.industry-content {
    padding: 25px;
}

.industry-stats {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 15px;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0071e3;
    display: block;
    margin-bottom: 5px;
}

.stat-label {
    color: #6c757d;
    font-size: 0.9rem;
    font-weight: 600;
}

/* 合作伙伴区域 */
.partners-section {
    background-color: #fff;
    padding: 60px 20px;
    border-radius: 20px;
    margin-bottom: 80px;
}

.partners-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 180px;
}

.partner-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0071e3, #00a2ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: white;
    font-size: 28px;
}

.partner-name {
    font-size: 16px;
    font-weight: 600;
    color: #1d1d1f;
}

.partner-type {
    font-size: 13px;
    color: #86868b;
    margin-top: 4px;
}

/* 可折叠页脚 */
.apple-footer {
    background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ed 100%);
    color: #515154;
    padding-top: 40px;
}

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

.footer-links {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.footer-column {
    margin-bottom: 30px;
}

.footer-title {
    font-size: 12px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 16px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-title::after {
    content: '+';
    font-size: 18px;
    transition: transform 0.3s;
}

.footer-title.active::after {
    transform: rotate(45deg);
    content: '×';
}

.footer-links-list {
    list-style: none;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.5s ease-out;
}

.footer-links-list.expanded {
    max-height: 500px;
}

.footer-link-item {
    margin-bottom: 10px;
}

.footer-link {
    color: #515154;
    text-decoration: none;
    font-size: 12px;
    transition: color 0.3s;
}

.footer-link:hover {
    color: #0071e3;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid #d2d2d7;
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-copyright {
    font-size: 12px;
    color: #86868b;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal-link {
    color: #515154;
    text-decoration: none;
    font-size: 12px;
}

.footer-legal-link:hover {
    color: #0071e3;
    text-decoration: underline;
}

.footer-locale {
    display: flex;
    align-items: center;
    color: #515154;
    font-size: 12px;
}

.footer-locale i {
    margin-right: 6px;
}

/* 响应式设计 - 移动端导航修复 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 48px;
        left: 0;
        width: 100%;
        background: rgba(245, 245, 247, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        z-index: 1002;
        border-radius: 0 0 20px 20px;
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .nav-item:last-child {
        border-bottom: none;
    }

    .nav-link {
        display: flex;
        align-items: center;
        padding: 18px 20px;
        height: auto;
        width: 100%;
        color: #1d1d1f;
        text-decoration: none;
        font-size: 16px;
        font-weight: 500;
        transition: background-color 0.3s;
        border-radius: 0;
    }

    .nav-link:hover {
        background-color: rgba(255, 255, 255, 0.4);
        color: #0071e3;
    }

    /* 修复移动端二级导航菜单样式 - 解决重叠问题 */
    .dropdown-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        border-radius: 0;
        margin-top: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        background: rgba(245, 245, 247, 0.95);
        left: 0;
        right: 0;
        padding: 0;
        z-index: 1003;
    }

    .dropdown-menu.show {
        max-height: 500px;
        padding: 10px 0;
    }

    /* 二级导航项样式 - 增加左侧缩进表示层级 */
    .dropdown-item {
        display: block;
        padding: 14px 20px 14px 30px;
        color: #1d1d1f;
        text-decoration: none;
        font-size: 15px;
        transition: background-color 0.2s;
        background: transparent;
        border-left: 3px solid transparent;
    }

    .dropdown-item:hover {
        background-color: rgba(0, 0, 0, 0.05);
        color: #0071e3;
    }

    /* 二级导航标题 */
    .dropdown-header {
        padding: 10px 20px 10px 30px;
        font-size: 12px;
        font-weight: 600;
        color: #86868b;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        background: transparent;
        border-left: 3px solid #0071e3;
    }

    /* 二级导航分割线 */
    .dropdown-divider {
        height: 1px;
        background-color: rgba(0, 0, 0, 0.1);
        margin: 8px 30px;
    }

    /* 三级导航容器样式 - 明显的缩进和边框 */
    .dropdown-submenu .submenu {
        position: static;
        left: 0;
        width: 100%;
        margin-left: 0;
        box-shadow: none;
        border-radius: 0;
        margin-top: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        background: rgba(235, 235, 237, 0.95);
        /* 明显缩进，避免与二级菜单重叠 */
        padding-left: 30px;
        border-left: 3px solid #0edf7e;
        /* 确保三级菜单不会与二级菜单重叠 */
        position: relative;
        z-index: 1004;
    }

    .dropdown-submenu .submenu.show {
        max-height: 300px;
        padding: 10px 0;
    }

    /* 三级导航项样式 - 更明显的缩进 */
    .dropdown-submenu .submenu .dropdown-item {
        padding: 12px 20px 12px 50px;
        font-size: 14px;
        background: transparent;
        border-left: none;
        position: relative;
    }

    /* 为三级菜单项添加小圆点标识 */
    .dropdown-submenu .submenu .dropdown-item:before {
        content: "";
        position: absolute;
        left: 35px;
        top: 50%;
        transform: translateY(-50%);
        width: 6px;
        height: 6px;
        background-color: #0071e3;
        border-radius: 50%;
    }

    .dropdown-submenu .submenu .dropdown-item:hover {
        background-color: rgba(0, 0, 0, 0.03);
    }

    /* 子菜单触发器样式 */
    .submenu-trigger {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-right: 15px;
    }

    .submenu-arrow {
        transition: transform 0.3s ease;
        font-size: 10px;
    }

    .submenu-arrow.rotated {
        transform: rotate(180deg);
    }

    /* 二级菜单项中的子菜单项样式 */
    .dropdown-submenu .dropdown-item {
        padding-left: 30px;
        background: transparent;
        border-left: 3px solid transparent;
    }

    /* 当子菜单展开时，给父项添加活动状态 */
    .dropdown-submenu.active>.dropdown-item {
        background-color: rgba(0, 113, 227, 0.05);
        border-left-color: #0071e3;
        color: #0071e3;
    }

    /* 为展开的三级菜单项添加更深的背景色，增加层次感 */
    .dropdown-submenu .submenu .dropdown-item {
        background: rgba(240, 240, 242, 0.8);
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 22px;
    }

    .hero-tagline {
        font-size: 18px;
        padding: 0 20px;
    }

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

    .service-process-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }

    .tech-features-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-column {
        margin-bottom: 10px;
    }

    .footer-title {
        border-bottom: 1px solid #424245;
        padding: 12px 0;
        margin-bottom: 0;
    }

    .footer-links-list {
        padding-left: 10px;
    }

    .footer-link-item {
        margin-bottom: 8px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    /* 客户评价响应式 */
    .testimonials-3d-container {
        height: 450px;
    }

    .testimonial-info {
        padding: 25px 15px;
    }

    .client-name {
        font-size: 18px;
    }

    .testimonial-text {
        font-size: 14px;
    }

    .control-btn {
        width: 35px;
        height: 35px;
    }

    .industry-stats {
        flex-direction: column;
        gap: 15px;
    }

    .stat-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }

    .stat-number {
        margin-bottom: 0;
    }


    /* 移动端菜单按钮 */
    .mobile-menu-btn {
        display: none;
        background: none;
        border: none;
        color: #1d1d1f;
        font-size: 24px;
        cursor: pointer;
    }

    @media (max-width: 768px) {
        .mobile-menu-btn {
            display: block;
        }
    }

    /* 移动端底部导航 */
    .bottom-navigation {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        display: none;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        padding: 8px 0;
        z-index: 1000;
    }

    .bottom-nav-container {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        justify-content: space-around;
        align-items: center;
        width: 100%;
    }

    .nav-item {
        flex: 1;
        text-align: center;
    }

    .nav-link-mobile {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-decoration: none;
        color: #86868b;
        font-size: 1.0rem;
        transition: all 0.3s ease;
        padding: 4px 0;
    }

    .nav-link-mobile.active,
    .nav-link-mobile:hover {
        color: #0071e3;
    }

    .nav-icon {
        font-size: 1.4rem;
        /* 减小图标大小 */
        margin-bottom: 2px;
    }

    .nav-text {
        font-size: 0.8rem;
    }

    @media (max-width: 768px) {
        .bottom-navigation {
            display: flex;
        }

        .apple-footer {
            padding-bottom: 70px;
            /* 为底部导航留出空间 */
        }
    }
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #1d1d1f;
    font-size: 24px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
}

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

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

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* 滚动效果 */
.scroll-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s, transform 0.6s;
}

.scroll-fade.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 产品分类相关样式 */
.product-categories {
    padding: 80px 0;
    margin: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 100%);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.category-card {
    background: white;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

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

.category-image {
    height: 200px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.category-card:hover .category-image img {
    transform: scale(1.1);
}

.category-content {
    padding: 25px;
}

.category-title {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 15px 0;
    color: #1d1d1f;
    text-align: center;
}

.category-description {
    font-size: 15px;
    color: #515154;
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: left;
}

.category-features {
    margin: 20px 0;
    padding-left: 20px;
}

.category-features li {
    margin-bottom: 10px;
    line-height: 1.5;
    display: flex;
    align-items: center;
}

.category-features i {
    margin-right: 10px;
    color: #0071e3;
}

.category-link {
    color: #0071e3;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    margin-top: 15px;
    transition: all 0.3s ease;
}

.category-link i {
    margin-left: 6px;
    transition: transform 0.3s;
}

.category-link:hover {
    color: #0056b3;
}

.category-link:hover i {
    transform: translateX(4px);
}

/* 产品页面特定样式 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.product-card {
    background-color: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.product-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-content {
    padding: 24px;
}

.product-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1d1d1f;
}

.product-description {
    font-size: 15px;
    color: #515154;
    line-height: 1.5;
    margin-bottom: 20px;
}

.product-link {
    color: #0071e3;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.product-link i {
    margin-left: 6px;
    transition: transform 0.3s;
}

.product-link:hover i {
    transform: translateX(4px);
}

.product-features {
    margin: 15px 0;
    padding-left: 20px;
}

.product-features li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.solutions-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 80px 0;
    margin: 80px 0;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.solution-card {
    background: white;
    border-radius: 18px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 100%;
}

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

.solution-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0edf7e 0%, #007bff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.solution-card:hover .solution-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 20px rgba(14, 223, 126, 0.3);
}

.specifications {
    margin: 20px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table th,
.spec-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.spec-table th {
    font-weight: 600;
    color: #1d1d1f;
}

.spec-table tr:last-child td,
.spec-table tr:last-child th {
    border-bottom: none;
}