/* 确保移动端菜单按钮正确显示 */
@media (max-width: 768px) {
    .menu-toggle {
        display: block !important;
        position: relative;
        z-index: 10000;
        background-color: transparent;
        border: none;
        cursor: pointer;
        padding: 8px;
        font-size: 20px;
        color: #333;
        margin-left: 10px;
    }

    .menu-toggle i.fas {
        font-size: 20px;
        color: #333;
        display: block;
    }

    /* 确保导航容器正确布局 */
    .nav {
        display: flex;
        align-items: center;
        justify-content: flex-end;
    }
}

/* 统一背景样式 - 以News.html为参照 */
.hero-banner {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 50%, #1abc9c 100%);
    background-size: 400% 400%;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/product/background.webp') center/cover;
    opacity: 0.2;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero-banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.8) 0%, rgba(41, 128, 185, 0.8) 50%, rgba(26, 188, 156, 0.8) 100%);
}

.banner-titles {
    text-align: center;
    color: white;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1.2s ease-out;
}

.banner-titles h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    font-weight: 800;
    letter-spacing: 3px;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-titles h2 {
    font-size: 2rem;
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    opacity: 0.95;
    letter-spacing: 1px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-banner {
        height: 350px;
    }
    
    .banner-titles h1 {
        font-size: 3rem;
        letter-spacing: 2px;
    }
    
    .banner-titles h2 {
        font-size: 1.6rem;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 主内容区块样式 */
.main-content {
    width: 100%;
    max-width: 1800px;
    margin: 50px auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.about-section {
    width: 85%;
    margin: 0 auto 100px;
    display: flex;
    gap: 40px;
    align-items: center;
}

/* 同时需要修改对应的响应式代码 */
@media (max-width: 992px) {
    .about-section {
        width: 90%;
        flex-direction: column;
    }
    
    .company-map {
        width: 100%;
        height: 300px;
    }
}
.company-map {
    width: 62%;
    height: 450px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.company-map:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.company-details {
    flex: 1;
    padding: 50px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.company-details h2 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 2.2rem;
    position: relative;
    padding-bottom: 15px;
}



.company-details p {
    margin-bottom: 25px;
    line-height: 1.8;
    color: #555;
    font-size: 1.1rem;
    display: block;
    align-items: center;
    position: relative;
    padding-left: 40px;
}

.company-details p::before {
    content: "";
    position: absolute;
    left: 0;
    width: 30px;
    height: 30px;
    background-color: #3498db;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
}

.company-details p:nth-child(2)::before {
    content: "\f3c5"; /* 地址图标 */
}

.company-details p:nth-child(3)::before {
    content: "\f095"; /* 电话图标 */
}

.company-details p:nth-child(4)::before {
    content: "\f0e0"; /* 邮箱图标 */
}

.company-details strong {
    display: inline;
    min-width: auto;
    color: #2c3e50;
    font-weight: 600;
    margin-right: 10px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .company-info {
        width: 90%;
        flex-direction: column;
    }
    
    .company-map {
        width: 100%;
        height: 300px;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 0 15px;
        margin: 30px auto;
    }
}


/* 企业文化板块 */
.culture-section {
    width: 80%;
    margin: 80px auto;
    padding: 0;
}

/* 品质体系特殊布局 - 统一卡片大小 */
.culture-block.quality-system .culture-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    justify-content: center;
}

/* 统一卡片大小 */
.culture-block.quality-system .culture-item {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 180px;
    box-sizing: border-box;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(52, 152, 219, 0.1);
    align-self: stretch;
}

.culture-block.quality-system .culture-item h4 {
    margin: 0 0 15px 0;
    font-size: 1.3rem;
    color: #2c3e50;
    font-weight: 600;
    min-height: 3em;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 10px;
}

.culture-block.quality-system .culture-item p {
    margin: auto 0;
    color: #6c757d;
    line-height: 1.6;
    font-size: 1rem;
    text-align: center;
    min-height: 4.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
}

/* 中等屏幕（≥768px）下显示3-2布局 */
@media (min-width: 768px) {
    .culture-block.quality-system .culture-content {
        grid-template-columns: repeat(6, 1fr);
        justify-content: center;
        align-items: stretch;
        max-width: 1100px;
        margin: 0 auto;
    }
    
    .culture-block.quality-system .culture-item {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
        grid-column: span 2;
    }
    
    /* 最后两个卡片在第二行 */
    .culture-block.quality-system .culture-item:nth-last-child(-n+2) {
        grid-row: 2;
        grid-column: span 3;
    }
    
    /* 调整最后两个卡片的位置 */
    .culture-block.quality-system .culture-item:nth-last-child(2) {
        margin-right: 0;
        transform: translateX(70%);
    }
    
    .culture-block.quality-system .culture-item:last-child {
        margin-left: 0;
        transform: translateX(70%);
    }
}

/* 大屏幕（≥1200px）下显示3-2布局 */
@media (min-width: 1200px) {
    .culture-block.quality-system .culture-content {
        grid-template-columns: repeat(3, minmax(300px, 1fr));
        gap: 25px;
        max-width: 1200px;
    }
    
    .culture-block.quality-system .culture-item {
        max-width: 100%;
        min-height: 200px;
    }
}

/* 文化板块 - 统一浅蓝色背景 */
.culture-block {
    margin-bottom: 100px;
    position: relative;
    padding: 30px;
    background: #f0f7ff; /* 浅蓝色背景 */
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 102, 204, 0.08);
    overflow: hidden;
}

/* 统一所有文化板块的卡片样式 */
.culture-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 1fr;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.culture-item {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 180px;
    box-sizing: border-box;
    padding: 25px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(52, 152, 219, 0.1);
}

.culture-item h4 {
    margin: 0 0 15px 0;
    font-size: 1.4rem;
    color: #2c3e50;
    font-weight: 600;
}

.culture-item p {
    margin: 0;
    color: #6c757d;
    line-height: 1.6;
    font-size: 1rem;
    flex-grow: 1;
    display: flex;
    align-items: center;
}

/* 品质体系特殊布局 - 优化五卡片布局 */
.culture-block:nth-child(3) .culture-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* 大屏幕下显示2-3布局 */
@media (min-width: 992px) {
    .culture-block:nth-child(3) .culture-content {
        grid-template-columns: repeat(6, 1fr);
        gap: 20px;
    }
    
    .culture-block:nth-child(3) .culture-item {
        grid-column: span 3; /* 默认每行2个 */
    }
    
    .culture-block:nth-child(3) .culture-item:last-child {
        grid-column: 3 / span 2; /* 最后一个卡片居中 */
        max-width: 50%;
        justify-self: center;
    }
}

/* 超大屏幕下显示3-2布局 */
@media (min-width: 1400px) {
    .culture-block:nth-child(3) .culture-content {
        grid-template-columns: repeat(12, 1fr);
    }
    
    .culture-block:nth-child(3) .culture-item {
        grid-column: span 4; /* 每行3个 */
    }
    
    .culture-block:nth-child(3) .culture-item:last-child {
        grid-column: 5 / span 4; /* 最后一个卡片居中 */
        max-width: 100%;
    }
}

/* 统一使用蓝色主题 */
.culture-header h3::after { 
    background: #3498db; 
}

.culture-item::before { 
    background: #3498db; 
}

.culture-quote { 
    border-left-color: #3498db; 
}

.culture-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    position: relative;
}

.culture-header h3 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    display: inline-block;
    padding: 0 20px;
}

.culture-header h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 20px;
    width: calc(100% - 40px);
    height: 4px;
    border-radius: 2px;
}

.culture-header p {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.culture-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    padding: 10px 0;
    width: 100%;
}

.culture-item {
    background: white;
    border-radius: 8px;
    padding: 30px 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(52, 152, 219, 0.15);
    background: white;
}

.culture-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.culture-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.culture-item:hover::before {
    height: 100%;
}

.culture-item h4 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.culture-item p {
    color: #7f8c8d;
    line-height: 1.7;
    margin: 0;
    position: relative;
    z-index: 1;
}

.culture-quote {
    max-width: 800px;
    margin: 40px auto 0;
    text-align: center;
    font-style: italic;
    color: #2c3e50;
    font-size: 1.2rem;
    line-height: 1.8;
    padding: 25px 40px;
    background: white;
    border-radius: 8px;
    position: relative;
    border-left: 4px solid #3498db;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    transition: all 0.3s ease;
}

.culture-quote:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.culture-quote::before {
    content: '"'
}

.culture-quote::after {
    content: '"'
}

.culture-quote::before {
    display: none;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-section {
        width: 90%;
        flex-direction: column;
    }
    
    .company-map {
        width: 100%;
        height: 300px;
    }
    
    .company-info {
        width: 90%;
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 0 15px;
        margin: 30px auto;
    }
    
    .culture-section {
        width: 90%;
        margin: 60px auto;
    }
    
    .culture-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .culture-item {
        padding: 20px;
    }
}

/* 联系信息容器 */
.contact-map-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

#baidu-map {
    width: 100%;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.contact-info {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-info p {
    margin-bottom: 20px;
    line-height: 1.6;
    color: #555;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 40px;
}

.contact-info p:last-child {
    margin-bottom: 0;
}

.contact-info p::before {
    content: "";
    position: absolute;
    left: 0;
    width: 30px;
    height: 30px;
    background-color: #3498db;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
}

.contact-info p:nth-child(1)::before {
    content: "\f3c5"; /* 地址图标 */
}

.contact-info p:nth-child(2)::before {
    content: "\f095"; /* 电话图标 */
}

.contact-info p:nth-child(3)::before {
    content: "\f0e0"; /* 邮箱图标 */
}

/* 留言表单样式 - 现代化设计 */
.contact-message {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(15px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: modalBackdropFadeIn 0.4s ease-out;
    padding: 20px;
    box-sizing: border-box;
    padding-top: 120px; 
}

@keyframes modalBackdropFadeIn {
    from {
        opacity: 0;
        backdrop-filter: blur(0px);
    }
    to {
        opacity: 1;
        backdrop-filter: blur(15px);
    }
}

.modal-content {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 50%, #ffffff 100%);
    padding: 0;
    border-radius: 28px;
    max-width: 650px;
    width: 100%;
    max-height: 90vh;
    position: relative;
    animation: modalSlideIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 
        0 32px 100px rgba(0, 0, 0, 0.2),
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.3);
    overflow: hidden;
    transform: translateZ(0);
    margin: auto;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-40px) scale(0.9) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1) translateZ(0);
    }
}

/* 弹窗头部 */
.modal-content h3 {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    margin: 0;
    padding: 35px 40px 30px;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    position: relative;
    font-family: '思源黑体', 'Source Han Sans', sans-serif;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
}

.modal-content h3::before {
    content: '💬';
    display: block;
    font-size: 3rem;
    margin-bottom: 12px;
    animation: bounce 2.5s infinite;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.2));
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) scale(1);
    }
    40% {
        transform: translateY(-12px) scale(1.1);
    }
    60% {
        transform: translateY(-6px) scale(1.05);
    }
}

.close-modal {
    position: absolute;
    top: 25px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    color: white;
    font-size: 28px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    font-weight: 300;
    line-height: 1;
    z-index: 10;
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg) scale(1.1);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
    color: #e74c3c;
}

.close-modal:active {
    transform: rotate(90deg) scale(0.95);
}

/* 表单容器 */
.message-form {
    padding: 45px 40px 40px;
    margin: 0;
    background: white;
}

.form-row {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    flex: 1;
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 22px;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    font-size: 1.05rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #fafbfc;
    box-sizing: border-box;
    font-family: '思源黑体', 'Source Han Sans', sans-serif;
    color: #2d3748;
    font-weight: 500;
}

/* 为联系电话和留言内容添加额外间距 */
.form-group input[type="tel"] {
    margin-bottom: 10px;
}

.form-group textarea {
    height: 130px;
    resize: vertical;
    line-height: 1.6;
    min-height: 130px;
    margin-top: 10px;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 
        0 0 0 4px rgba(52, 152, 219, 0.1),
        0 4px 20px rgba(52, 152, 219, 0.15);
    transform: translateY(-3px);
    background: white;
}

/* 输入框占位符样式 */
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #a0aec0;
    font-weight: 400;
    opacity: 0.8;
}

/* 提交按钮 */
.submit-btn {
    width: 100%;
    padding: 18px 28px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    border-radius: 16px;
    font-size: 1.15rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 35px;
    font-family: '思源黑体', 'Source Han Sans', sans-serif;
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.5px;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 12px 40px rgba(52, 152, 219, 0.4),
        0 4px 20px rgba(41, 128, 185, 0.3);
    background: linear-gradient(135deg, #2980b9 0%, #1f5f8b 100%);
}

.submit-btn:active {
    transform: translateY(-2px);
    box-shadow: 
        0 8px 25px rgba(52, 152, 219, 0.3),
        0 2px 10px rgba(41, 128, 185, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-message {
        padding: 15px;
    }
    
    .modal-content {
        width: 100%;
        max-height: 95vh;
        border-radius: 24px;
    }
    
    .modal-content h3 {
        padding: 30px 30px 25px;
        font-size: 1.7rem;
    }
    
    .message-form {
        padding: 35px 30px 30px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 20px;
    }
    
    .close-modal {
        top: 20px;
        right: 25px;
        width: 45px;
        height: 45px;
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .contact-message {
        padding: 10px;
    }
    
    .modal-content {
        border-radius: 20px;
    }
    
    .modal-content h3 {
        padding: 25px 25px 20px;
        font-size: 1.5rem;
    }
    
    .message-form {
        padding: 30px 25px 25px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 16px 18px;
        font-size: 1rem;
        border-radius: 14px;
    }
    
    .submit-btn {
        padding: 16px 24px;
        font-size: 1.1rem;
        border-radius: 14px;
    }
    
    .close-modal {
        top: 18px;
        right: 22px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

/* 公司介绍部分 */
.company-intro-section {
    max-width: 1400px;
    margin: 80px auto;
    padding: 0 20px;
}

.company-intro-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 60px;
}

.intro-card-content {
    padding: 50px;
    text-align: center;
}

.intro-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.intro-icon {
    font-size: 3rem;
    color: #3498db;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(41, 128, 185, 0.1) 100%);
    padding: 20px;
    border-radius: 50%;
}

.intro-card-header h2 {
    font-size: 2.5rem;
    color: #2d3748;
    margin: 0;
    font-weight: 700;
}

.highlight-text {
    font-size: 1.3rem;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 20px;
}

.keyword {
    color: #3498db;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.keyword::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.keyword:hover::after {
    transform: scaleX(1);
}

/* 产品体系展示 */
.product-system {
    margin-top: 60px;
}

.section-title {
    font-size: 2.5rem;
    color: #2d3748;
    text-align: center;
    margin-bottom: 50px;
    font-weight: 700;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-column {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-column:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(52, 152, 219, 0.2);
}

.product-category {
    text-align: center;
    margin-bottom: 25px;
}

.product-icon {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 15px;
}

.product-category h3 {
    font-size: 1.5rem;
    color: #2d3748;
    margin-bottom: 10px;
    font-weight: 600;
}

.category-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
}

.lens-tag {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
}

.light-tag {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
}

.test-tag {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
}

.product-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-list li {
    padding: 8px 0;
    color: #4a5568;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.product-list li i {
    color: #3498db;
    font-size: 0.9rem;
}

/* 联系我们浮动按钮 */
.contact-float-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.float-btn {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(52, 152, 219, 0.4);
}

.float-btn i {
    font-size: 18px;
}

.float-btn span {
    white-space: nowrap;
}

/* 公司详细介绍 */
.company-detail-section {
    margin-top: 60px;
}

.detail-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.detail-block {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.detail-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.15);
}

.detail-block h3 {
    font-size: 1.5rem;
    color: #2d3748;
    margin-bottom: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 15px;
}

.detail-block h3 i {
    color: #3498db;
    font-size: 1.3rem;
}

.detail-block p {
    color: #4a5568;
    line-height: 1.7;
    margin: 0;
    font-size: 1rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .detail-container {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-card-content {
        padding: 30px;
    }
    
    .highlight-text {
        font-size: 1.1rem;
    }
    
    .detail-container {
        grid-template-columns: 1fr;
    }
    
    .detail-block {
        padding: 25px;
    }
    
    .detail-block h3 {
        font-size: 1.3rem;
    }
    
    .detail-block p {
        font-size: 0.95rem;
    }
}