:root {
    --primary-color: #0066ff; /* 主蓝色 */
    --primary-light: #4d94ff; /* 浅蓝色 */
    --primary-dark: #0052d4; /* 深蓝色 */
    --white: #ffffff;
    --light-bg: #f8faff;
    --card-bg: #ffffff;
    --dark-text: #0a1a3a;
    --text-color: #2d3748;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --gradient-primary: var(--primary-color); /* 改为纯色 */
    --gradient-light: rgba(0, 102, 255, 0.1); /* 浅蓝色背景 */
    --border-radius: 20px;
    --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 20px 40px rgba(0, 102, 255, 0.08);
    --shadow-hover: 0 30px 60px rgba(0, 102, 255, 0.15);
    --section-spacing: 140px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, .logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--dark-text);
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 头部和导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 2000;
    padding: 8px 0; /* 进一步降低高度 */
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.header-scrolled {
    padding: 6px 0; /* 相应减少 */
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.08);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 聆微科技logo设计 */
.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark-text);
    text-decoration: none;
    position: relative;
    z-index: 2001;
}

.logo-icon {
    width: 100px;
    height: 100px;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.logo-icon img {
    max-height: 100%;
    max-width: 100%;
    width: auto;
    height: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-text span:first-child {
    font-weight: 800;
    color: #000000; /* 改为黑色 */
    font-size: 1.9rem; /* 稍微增大字体 */
    letter-spacing: 0.5px; /* 增加字间距 */
}

.logo-text span:last-child {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 4px;
}

/* 导航菜单 */
nav {
    position: relative;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 24px;
}

nav li {
    position: relative;
}

nav a {
    color: var(--dark-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

nav a:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 3px;
}

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

nav a:hover:before {
    width: 100%;
}

.nav-highlight {
    background: var(--primary-color);
    color: white;
    padding: 12px 28px;
    border-radius: 50px;
    margin-left: 16px;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
    transition: var(--transition);
}

.nav-highlight:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(0, 102, 255, 0.4);
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.8rem;
    cursor: pointer;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--gradient-light);
    transition: var(--transition);
    z-index: 2001;
}

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

/* Hero区域 */
.hero {
    padding: 200px 0 150px;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero-bg-element {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-light);
    filter: blur(60px);
    opacity: 0.6;
}

.hero-bg-element:nth-child(1) {
    width: 600px;
    height: 600px;
    top: -300px;
    right: -200px;
}

.hero-bg-element:nth-child(2) {
    width: 400px;
    height: 400px;
    bottom: -200px;
    left: -100px;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4.2rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: white; /* 改为白色 */
    position: relative;
    display: inline-block;
}

/* 上下浮动效果 */
@keyframes floatUpDown {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.floating-up-down {
    animation: floatUpDown 6s ease-in-out infinite;
}

.hero h1:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: white; /* 改为白色 */
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.6rem;
    color: white; /* 改为白色 */
    margin-bottom: 2.5rem;
    font-weight: 500;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.7; /* 文字初始半透明 */
    transition: opacity 0.5s ease;
}

.hero p {
    font-size: 1.2rem;
    color: white; /* 改为白色 */
    margin-bottom: 3.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.7; /* 文字初始半透明 */
    transition: opacity 0.5s ease;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    opacity: 0.7; /* 按钮初始半透明 */
    transition: opacity 0.5s ease;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 20px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    gap: 12px;
}

.btn i {
    font-size: 1.2rem;
}

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

.btn-primary:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-hover);
    background: var(--primary-dark);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-light);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--gradient-light);
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 102, 255, 0.1);
}

/* 区块背景媒体容器 - 透明度可调节 */
.section-bg-media {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10; /* 进一步降低z-index确保在内容下方 */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.7; /* 默认透明度70%，方便调节 */
    transition: opacity 0.5s ease;
}

.section-bg-media.bg-video {
    opacity: 1; /* 视频初始完全不透明 */
    z-index: -11; /* 视频在图片下方 */
}

/* 各区块背景透明度调节类 */
.bg-opacity-0 { opacity: 0; }
.bg-opacity-10 { opacity: 0.1; }
.bg-opacity-20 { opacity: 0.2; }
.bg-opacity-30 { opacity: 0.3; }
.bg-opacity-40 { opacity: 0.4; }
.bg-opacity-50 { opacity: 0.5; }
.bg-opacity-60 { opacity: 0.6; }
.bg-opacity-70 { opacity: 0.7; }
.bg-opacity-80 { opacity: 0.8; }
.bg-opacity-90 { opacity: 0.9; }
.bg-opacity-100 { opacity: 1; }

/* 确保背景视频填满整个区域 - 修复版 */
.section-bg-media.bg-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.section-bg-media.bg-video video.loaded {
    opacity: 1;
}

/* 视频封面样式优化 */
.section-bg-media.bg-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    opacity: 1; /* 初始显示封面 */
    transition: opacity 0.5s ease;
}

/* 视频加载完成后显示视频，隐藏封面 */
.section-bg-media.bg-video video.playing {
    opacity: 1;
}

/* 确保其他背景元素在背景媒体上方 */
.sector-bg-pattern,
.equipment-bg,
.results-bg,
.sales-bg,
.footer-bg {
    z-index: -1; /* 在背景媒体上方 */
}

/* 确保背景图片填满整个区域 */
.section-bg-media {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 确保包含背景的section有足够高度和正确布局 */
.hero,
.sectors,
.equipment,
.results,
.sales,
.about,
.contact,
footer {
    position: relative;
    overflow: hidden;
}

/* 为section设置最小高度确保背景显示 */
.sectors,
.equipment,
.results,
.sales,
.about,
.contact {
    min-height: 600px;
}

/* 响应式调整：确保在不同设备上都能填满 */
@media (max-width: 768px) {
    .sectors,
    .equipment,
    .results,
    .sales,
    .about,
    .contact {
        min-height: 500px;
    }
    
    .section-bg-media.bg-video video {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
    }
}

@media (max-width: 576px) {
    .sectors,
    .equipment,
    .results,
    .sales,
    .about,
    .contact {
        min-height: 400px;
    }
}

/* 确保包含背景的section有足够高度和正确布局 */
.hero,
.sectors,
.equipment,
.results,
.sales,
.about,
.contact,
footer {
    position: relative;
    overflow: hidden;
}

/* 为section设置最小高度确保背景显示 */
.sectors,
.equipment,
.results,
.sales,
.about,
.contact {
    min-height: 600px;
}

/* 响应式调整：确保在不同设备上都能填满 */
@media (max-width: 768px) {
    .sectors,
    .equipment,
    .results,
    .sales,
    .about,
    .contact {
        min-height: 500px;
    }
    
    .section-bg-media.bg-video video {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
    }
}

@media (max-width: 576px) {
    .sectors,
    .equipment,
    .results,
    .sales,
    .about,
    .contact {
        min-height: 400px;
    }
}

/* 各区块悬停时背景透明度不变（根据用户要求） */
/* section:hover .section-bg-media {
    opacity: 1;
} */

/* 各行业展示 */
.sectors {
    padding: var(--section-spacing) 0;
    background-color: var(--white);
    position: relative;
    overflow: hidden;
}

.sector-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(var(--primary-light) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 1;
    z-index: -1;
}

.sectors .container {
    position: relative;
    z-index: 2;
}

.section-title {
    text-align: center;
    margin-bottom: 80px;
}

.section-title h2 {
    font-size: 3.2rem;
    display: inline-block;
    position: relative;
    color: var(--dark-text);
}

.section-title h2:after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 5px;
    background: var(--primary-color);
    border-radius: 3px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 30px auto 0;
    line-height: 1.8;
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 35px;
}

.sector-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px 35px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.02);
}

.sector-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-light);
    opacity: 0;
    transition: var(--transition);
}

.sector-card:hover {
    transform: translateY(-20px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-hover);
}

.sector-card:hover:before {
    opacity: 1;
}

.sector-icon {
    font-size: 3.5rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    position: relative;
    z-index: 2;
    transition: var(--transition);
}

.sector-card:hover .sector-icon {
    transform: scale(1.2);
}

.sector-card h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.sector-card p {
    color: var(--text-secondary);
    position: relative;
    z-index: 2;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* 专业设备 - 统一大小卡片，增强图片区域 */
.equipment {
    padding: var(--section-spacing) 0;
    background-color: #f8faff; /* 浅灰色背景 */
    position: relative;
}

.equipment-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-light);
    opacity: 0.1;
    z-index: -1;
}

.equipment .container {
    position: relative;
    z-index: 2;
}

.equipment-uniform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.equipment-card-uniform {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.02);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.equipment-card-uniform:hover {
    transform: translateY(-15px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-hover);
}

.equipment-card-image {
    height: 240px;
    position: relative;
    overflow: hidden;
}

/* 设备图片容器 */
.device-image-container {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    transition: transform 0.5s ease;
}

.equipment-card-uniform:hover .device-image-container {
    transform: scale(1.05);
}

/* 图片悬停遮罩效果 - 已移除放大查看功能 */
.image-overlay {
    display: none; /* 移除放大查看功能 */
}

/* 设备图片占位符（当没有图片时显示） */
.device-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    background: var(--gradient-light);
}

.placeholder-icon {
    display: none; /* 移除图标 */
}

.placeholder-text {
    display: none; /* 移除设备名称文本 */
}

.equipment-card-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.equipment-card-content h3 {
    font-size: 1.6rem;
    margin-bottom: 5px;
    color: var(--dark-text);
}

.equipment-category {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 15px;
}

.equipment-description {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.6;
    font-size: 1.05rem;
    flex: 1;
}

.equipment-specs {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
}

.spec-item {
    display: flex;
    align-items: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.spec-item i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1rem;
    width: 20px;
}

/* 数据成果 */
.results {
    padding: var(--section-spacing) 0;
    background-color: var(--white);
    position: relative;
}

.results-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%230066ff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: -1;
}

.results .container {
    position: relative;
    z-index: 2;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 40px;
}

.result-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px 35px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.02);
}

.result-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-light);
    opacity: 0;
    transition: var(--transition);
}

.result-card:hover {
    transform: translateY(-15px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-hover);
}

.result-card:hover:before {
    opacity: 1;
}

.result-icon {
    font-size: 3.5rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    position: relative;
    transition: var(--transition);
}

.result-card:hover .result-icon {
    transform: rotate(15deg) scale(1.2);
}

.result-card h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--dark-text);
    position: relative;
}

.result-card p {
    color: var(--text-secondary);
    position: relative;
}

/* 设备销售与培训 */
.sales {
    padding: var(--section-spacing) 0;
    background-color: #f0f7ff; /* 浅蓝色背景 */
    position: relative;
}

.sales-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    opacity: 0.03;
    z-index: -1;
}

.sales .container {
    position: relative;
    z-index: 2;
}

.sales-notice {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 80px;
    padding: 30px 45px;
    background: var(--gradient-light);
    border-radius: var(--border-radius);
    border-left: 6px solid var(--primary-color);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sales-notice:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    opacity: 0;
    transition: var(--transition);
}

.sales-notice:hover:before {
    opacity: 0.05;
}

.sales-notice p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    position: relative;
    z-index: 2;
    line-height: 1.8;
    display: flex;
    align-items: center;
}

.sales-notice i {
    color: var(--primary-color);
    margin-right: 15px;
    font-size: 1.5rem;
}

/* 销售产品卡片 */
.sales-showcase {
    margin-top: 60px;
}

.sales-product-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.sales-product-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.02);
    display: flex;
    flex-direction: column;
}

.sales-product-card:hover {
    transform: translateY(-15px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-hover);
}

.product-header {
    background: var(--gradient-light);
    padding: 30px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    text-align: center;
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 6px 15px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.product-icon {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin: 0 auto 20px;
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.2);
}

.product-title-section {
    text-align: center;
}

.product-name {
    font-size: 1.7rem;
    margin-bottom: 5px;
    color: var(--dark-text);
}

.product-subtitle {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1.1rem;
}

.product-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 产品图片容器 */
.product-image-container {
    height: 200px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 12px;
    margin-bottom: 25px;
    position: relative;
    overflow: hidden;
    transition: transform 0.5s ease;
}

.sales-product-card:hover .product-image-container {
    transform: scale(1.03);
}

.product-image-container .image-overlay {
    background: rgba(0, 102, 255, 0.9);
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.7;
    font-size: 1.05rem;
    flex: 1;
}

.product-models {
    margin-bottom: 25px;
}

.model-item {
    background: var(--gradient-light);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    transition: var(--transition);
}

.model-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.model-item:hover .model-name,
.model-item:hover .model-specs,
.model-item:hover .spec-item {
    color: white;
}

.model-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-text);
}

.model-specs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.spec-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.spec-item i {
    margin-right: 8px;
    font-size: 0.9rem;
    width: 16px;
}

.model-tag {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-training {
    margin-bottom: 25px;
}

.training-tag {
    display: inline-flex;
    align-items: center;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-color);
    padding: 8px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.training-tag i {
    margin-right: 8px;
    font-size: 1rem;
}

.product-actions {
    margin-top: auto;
}

.btn-inquire {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    text-align: center;
    width: 100%;
    border: none;
    cursor: pointer;
}

.btn-inquire:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.3);
    background: var(--primary-dark);
}

/* 其他设备 */
.other-devices-section {
    margin-top: 60px;
}

.other-devices-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--dark-text);
}

.other-devices-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.other-device-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.02);
}

.other-device-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-hover);
}

.other-device-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--gradient-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.other-device-content h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark-text);
}

.other-device-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 关于我们 */
.about {
    padding: var(--section-spacing) 0;
    background-color: #ffffff; /* 白色背景 */
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
}

.about-text h2 {
    font-size: 3.2rem;
    margin-bottom: 30px;
    color: var(--dark-text);
}

.about-text h2 span {
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: 30px;
    color: var(--text-secondary);
    font-size: 1.2rem;
    line-height: 1.8;
}

.about-features {
    margin-top: 50px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    position: relative;
}

.feature-icon-container {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-right: 25px;
    font-size: 1.8rem;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
}

.feature-content h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-text);
}

.feature-content p {
    margin-bottom: 0;
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-image {
    height: 500px;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.1);
}

/* 团队图片容器 */
.team-image-container {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.about-image .image-overlay {
    background: rgba(0, 102, 255, 0.7);
}

/* 联系我们 */
.contact {
    padding: var(--section-spacing) 0;
    background-color: #f8faff; /* 浅灰色背景 */
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h3 {
    font-size: 2.8rem;
    margin-bottom: 30px;
    color: var(--dark-text);
}

.contact-info h3 span {
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 40px;
    color: var(--text-secondary);
    font-size: 1.2rem;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 50px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    transition: var(--transition);
    padding: 20px;
    border-radius: var(--border-radius);
    background: var(--gradient-light);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.1);
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-right: 25px;
    font-size: 1.8rem;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
}

.contact-text h4 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--dark-text);
}

.contact-text p {
    margin-bottom: 0;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.contact-form {
    background: var(--card-bg);
    padding: 50px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.contact-form:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-light);
    opacity: 0.2;
    z-index: 0;
}

.contact-form > * {
    position: relative;
    z-index: 1;
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--dark-text);
    font-size: 1.05rem;
}

.form-control {
    width: 100%;
    padding: 18px 24px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
    background: white;
}

textarea.form-control {
    min-height: 180px;
    resize: vertical;
}

.form-notice {
    background-color: rgba(0, 102, 255, 0.08);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-left: 4px solid var(--primary-color);
}

.form-notice i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

/* 页脚 */
footer {
    background-color: #0a1a3a;
    padding: 100px 0 40px;
    color: white;
    position: relative;
    overflow: hidden;
}

.footer-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(0, 198, 255, 0.1) 100%);
    opacity: 0.1;
    z-index: -1;
}

.footer-container {
    position: relative;
    z-index: 2;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}

.footer-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: white;
    margin-bottom: 30px;
}

.footer-logo span {
    color: var(--primary-color);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* 二维码区域 */
.qrcode-section {
    margin-top: 20px;
}

.qrcode-container {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.qrcode-container:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.qrcode-icon {
    width: 80px; /* 增大尺寸 */
    height: 80px; /* 增大尺寸 */
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(9, 187, 7, 0.3);
}

.qrcode-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qrcode-text {
    flex: 1;
}

.qrcode-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem; /* 增大字体 */
    margin: 0;
    line-height: 1.5;
}

.qrcode-text .qrcode-label {
    font-weight: 600;
    color: white;
    font-size: 1.2rem; /* 增大字体 */
    margin-bottom: 8px;
}

.footer-links h4, .footer-services h4, .footer-contact h4 {
    font-size: 1.4rem;
    margin-bottom: 35px;
    position: relative;
    padding-bottom: 15px;
    color: white;
}

.footer-links h4:after, .footer-services h4:after, .footer-contact h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.footer-links ul, .footer-services ul {
    list-style: none;
}

.footer-links li, .footer-services li {
    margin-bottom: 18px;
}

.footer-links a, .footer-services a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1.1rem;
}

.footer-links a:hover, .footer-services a:hover {
    color: var(--primary-light);
    padding-left: 10px;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    font-size: 1.1rem;
}

.footer-contact i {
    margin-right: 15px;
    color: var(--primary-light);
    font-size: 1.3rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    position: relative;
    z-index: 2;
}

.icp-number {
    display: inline-block;
    margin-left: 15px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* 图片查看模态框 */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 3000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    z-index: 3001;
    background: rgba(0, 0, 0, 0.5);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.close-modal:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: rotate(90deg);
}

#modalImage {
    width: 100%;
    height: auto;
    display: block;
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 15px;
    text-align: center;
    font-size: 1.1rem;
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* 高级响应式设计 */
@media (max-width: 1200px) {
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .section-title h2 {
        font-size: 2.8rem;
    }
    
    .about-text h2 {
        font-size: 2.8rem;
    }
    
    .footer-content {
        gap: 40px;
    }
    
    .sales-product-row {
        gap: 30px;
    }
    
    .other-devices-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    nav ul {
        gap: 20px;
    }
}

@media (max-width: 992px) {
    .about-content, .contact-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 50px;
    }

    .hero h1 {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-title h2 {
        font-size: 2.4rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
    }
    
    .contact-form {
        padding: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        height: 400px;
        order: -1;
    }
    
    .sales-product-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .equipment-uniform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    nav ul {
        gap: 15px;
    }
}

@media (max-width: 768px) {
    nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 400px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 120px 40px 40px;
        transition: var(--transition);
        box-shadow: 20px 0 50px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    nav.active {
        left: 0;
    }

    nav ul {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    nav li {
        margin: 0 0 25px 0;
        width: 100%;
    }

    nav a {
        font-size: 1.3rem;
        padding: 15px 0;
        width: 100%;
        color: var(--dark-text);
    }

    .nav-highlight {
        margin-left: 0;
        margin-top: 20px;
        text-align: center;
        display: block;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero {
        padding: 180px 0 100px;
        min-height: auto;
    }
    
.hero h1 {
    font-size: 4.2rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: white; /* 改为白色 */
    position: relative;
    display: inline-block;
    opacity: 0.7; /* 文字初始半透明 */
    transition: opacity 0.5s ease;
}
    
    .hero p {
        font-size: 1.1rem;
    }

    .hero-btns {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .btn {
        width: 100%;
        max-width: 340px;
        padding: 18px 35px;
    }

    .section-title h2 {
        font-size: 2.2rem;
    }
    
    .sectors-grid,
    .results-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 50px;
        margin-bottom: 60px;
    }
    
    .contact-form {
        padding: 35px 25px;
    }
    
    .sales-notice {
        padding: 35px 25px;
        margin-bottom: 60px;
    }
    
    .feature-icon-container {
        width: 50px;
        height: 50px;
        margin-right: 20px;
        font-size: 1.5rem;
    }
    
    .qrcode-container {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .sales-product-row {
        grid-template-columns: 1fr;
    }
    
    .equipment-uniform-grid {
        grid-template-columns: 1fr;
    }
    
    .other-devices-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .section-spacing {
        padding: 100px 0;
    }
    
    .sector-card,
    .equipment-card-uniform,
    .result-card,
    .sales-product-card {
        padding: 30px 20px;
    }
    
    .footer-logo {
        font-size: 2rem;
    }
    
    .contact-item {
        padding: 15px;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
        margin-right: 20px;
        font-size: 1.5rem;
    }
    
    .equipment-card-image {
        height: 200px;
    }
    
    .product-header {
        padding: 20px;
    }
    
    .product-icon {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }
    
    .other-device-item {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .other-device-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .about-image {
        height: 300px;
    }
    
    .footer-bottom {
        font-size: 0.9rem;
    }
    
    .icp-number {
        display: block;
        margin-left: 0;
        margin-top: 10px;
    }
}