/* 蓝色科技风格全局样式 */
:root {
    --primary-color: #3b82f6;
    --secondary-color: #1d4ed8;
    --accent-color: #60a5fa;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

/* 隐藏页面滚动条 */
html {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

html::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Microsoft YaHei', '微软雅黑', 'Heiti SC', '黑体', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: #fff;
    overflow-x: hidden;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

body::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

/* 蓝色科技导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: #111;
    text-shadow: none;
    letter-spacing: 1px;
    text-decoration: none;
    margin-left: 2rem;
}
.logo-img {
    width: 32px;
    height: 32px;
    margin-right: 0.5rem;
    display: inline-block;
    vertical-align: middle;
}
.logo::before { content: none; }

@keyframes glow {
    from { text-shadow: 0 0 10px #60a5fa; }
    to { text-shadow: 0 0 20px #60a5fa, 0 0 30px #60a5fa; }
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-links a {
    color: #111;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
}

.nav-links a:hover {
    color: #111;
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

/* 蓝色科技Hero区域 */
.hero {
    position: relative;
    padding: 25rem 0 20rem;
    /* background: url('../img/背景.gif') center/cover no-repeat, url('../img/背景1.png') center/cover no-repeat !important; */
    overflow: hidden;
    margin-bottom: 0 !important;
    border-radius: 0 0 2rem 2rem;
    box-shadow: 0 20px 50px rgba(0, 85, 165, 0.2);
    min-height: 100vh;
    width: 100%;
    box-sizing: border-box;
}

.hero-bg-video {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
    box-sizing: border-box;
}

.hero h1 {
    color: #ffffff !important;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
    line-height: 1.2;
}

.hero p {
    color: #ffffff !important;
    font-size: 1.3rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.8), 0 0 10px rgba(0, 0, 0, 0.5);
    font-weight: 500;
    line-height: 1.6;
}

/* 蓝色科技按钮 */
.btn-primary {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #111;
    border: none;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(96,165,250,0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.6);
}

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

/* 蓝色科技区块 */
.about-section {
    padding: 8rem 2rem !important;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.98) 100%) !important;
    border-radius: 2rem !important;
    margin: 4rem auto !important;
    max-width: 1200px !important;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1) !important;
    position: relative !important;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* 关于我们内容布局 */
.about-content {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    margin-top: 2rem;
}

.about-image {
    flex: 0 0 400px;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-text {
    flex: 1;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: justify;
    text-justify: inter-word;
    word-spacing: 0.1em;
    letter-spacing: 0.02em;
    text-indent: 3em; /* 首行缩进 */
}

.about-section::before {
    content: '';
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa, #3b82f6);
    border-radius: 2px;
}

.products {
    padding: 8rem 2rem !important;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.98) 100%) !important;
    border-radius: 2rem !important;
    margin: 4rem auto !important;
    max-width: 1200px !important;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1) !important;
    position: relative !important;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* 解决方案部分样式 */
.solutions {
    padding: 8rem 2rem !important;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.98) 100%) !important;
    border-radius: 2rem !important;
    margin: 4rem auto !important;
    max-width: 1200px !important;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1) !important;
    position: relative !important;
    border: 1px solid rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.solution-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.solution-icon {
    text-align: center;
    margin-bottom: 1.5rem;
}

.solution-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: var(--radius);
}

.solution-content h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}

.solution-content p {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    text-align: justify;
    text-indent: 3em;
}

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

.solution-features li {
    color: var(--text-color);
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    font-weight: 500;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1rem;
}


#contact {
    padding: 8rem 2rem !important;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.98) 100%) !important;
    border-radius: 2rem !important;
    margin: 4rem auto !important;
    max-width: 1200px !important;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1) !important;
    position: relative !important;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

#contact::before {
    content: '';
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa, #3b82f6);
    border-radius: 2px;
}

/* 蓝色科技标题 */
.section-title h2 {
    color: #111 !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    text-shadow: none !important;
    text-align: center;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0 !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    font-weight: 900;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Microsoft YaHei', '微软雅黑', 'Heiti SC', '黑体', Arial, sans-serif;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative !important;
    z-index: 10 !important;
    letter-spacing: 0.05em;
}

.section-title p {
    font-size: 1.2rem;
    color: var(--light-text);
    text-align: center;
    margin-bottom: 2rem;
    line-height: 1.6;
    font-weight: 500;
    letter-spacing: 0.02em;
}



/* 蓝色科技产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

/* 蓝色科技产品卡片 */
.product-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.98) 100%);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    min-height: 400px;
    max-height: 450px;
    margin-bottom: 2rem;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}



.brand-img-lg {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin: 0 auto 1.5rem;
    display: block;
    transition: var(--transition);
}

.product-card:hover .brand-img-lg {
    transform: scale(1.1);
}

.product-content {
    text-align: center;
    min-height: 200px;
}

.product-content h3 {
    color: #111 !important;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    text-shadow: none !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.product-content p {
    color: #111;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    max-height: 80px;
    overflow: hidden;
}

.product-content .btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #111;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid rgba(96,165,250,0.3);
}

.product-content .btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

/* 蓝色科技表单 */
#contactForm input, #contactForm textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: #fff;
    color: #111;
}

#contactForm input:focus, #contactForm textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#contactForm input::placeholder, #contactForm textarea::placeholder {
    color: #6b7280;
}

/* 蓝色科技页脚 */
.footer {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #fff;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0 1rem;
}

.footer-col h3 {
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    text-shadow: none;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
    line-height: 1.5;
    padding: 0.25rem 0;
}

.footer-links a:hover {
    color: #60a5fa;
}

.footer-links li {
    color: #cbd5e1;
    line-height: 1.5;
    padding: 0.25rem 0;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid #475569;
    color: #94a3b8;
}

#contact h2 {
    color: #111 !important;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    margin-top: 0 !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    text-shadow: none !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: relative !important;
    z-index: 10 !important;
}

#contact p {
    color: #111;
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.1rem;
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    text-shadow: none;
}

.contact-info {
    color: #111;
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    text-shadow: none;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    body {
        overflow-x: hidden;
        width: 100%;
        font-size: 16px;
        line-height: 1.6;
    }
    
    /* 移动端文字优化 */
    p, h1, h2, h3, h4, h5, h6 {
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    
    /* 确保Hero区域在移动端正确显示 */
    .hero {
        position: relative;
        width: 100vw;
        left: 50%;
        right: 50%;
        margin-left: -50vw;
        margin-right: -50vw;
        overflow: hidden;
    }
    
    /* 导航栏移动端优化 */
    .navbar {
        padding: 0.5rem 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
    }
    
    .navbar-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 15px;
    }
    
    .logo {
        font-size: 1.4rem;
        margin-left: 0;
        font-weight: 700;
        color: #111;
    }
    
    .logo-img {
        width: 28px;
        height: 28px;
        filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    }
    
    /* 移动端菜单按钮显示 */
    .mobile-menu-btn {
        display: flex;
    }
    
    /* 移动端导航链接默认隐藏 */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 80px;
        transition: right 0.3s ease;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        margin: 1rem 0;
    }
    
    .nav-links a {
        font-size: 1.1rem;
        padding: 0.8rem 1.5rem;
        display: block;
        width: 100%;
        text-align: center;
    }
    
    /* Hero区域移动端优化 */
    .hero {
        min-height: 60vh;
        padding: 6rem 0 3rem;
        width: 100%;
        overflow: hidden;
        border-radius: 0;
    }
    
    .hero-content {
        padding: 0 15px;
        max-width: 100%;
    }
    
    .hero h1 { 
        font-size: 2rem; 
        margin-bottom: 1rem;
        line-height: 1.3;
        letter-spacing: 0.02em;
        color: #ffffff !important;
        text-shadow: 2px 2px 6px rgba(0,0,0,0.8), 0 0 15px rgba(0,0,0,0.5);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .hero p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        line-height: 1.5;
        color: #ffffff !important;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.8), 0 0 8px rgba(0,0,0,0.5);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    /* 关于我们部分移动端优化 */
    .about-section {
        padding: 3rem 0;
        margin: 2rem auto !important;
        max-width: 100% !important;
        border-radius: 1rem !important;
    }
    
    .about-section > div { 
        grid-template-columns: 1fr; 
        gap: 2rem;
        text-align: left;
        padding: 0 15px;
        display: flex;
        flex-direction: column;
    }
    
    /* 移动端强制覆盖内联样式 */
    .about-content {
        flex-direction: column !important;
        gap: 2rem !important;
    }
    
    .about-image {
        flex: none !important;
        order: 1 !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        width: 100% !important;
    }
    
    .about-text {
        flex: none !important;
        order: 2 !important;
    }
    
    .about-text p {
        font-size: 1rem;
        line-height: 1.7;
        word-wrap: break-word;
        overflow-wrap: break-word;
        text-align: justify;
        text-justify: inter-word;
        margin-bottom: 1.2rem;
        color: #333;
        font-weight: 400;
        text-indent: 3em; /* 保持首行缩进 */
    }
    
    .about-image img {
        max-width: 250px;
        height: auto;
        align-self: center;
        margin: 0 auto;
        display: block;
    }
    
    /* 产品部分移动端优化 */
    .products {
        padding: 3rem 0;
        margin: 2rem auto !important;
        max-width: 100% !important;
        border-radius: 1rem !important;
    }
    
    /* 解决方案部分移动端优化 */
    .solutions {
        padding: 3rem 0;
        margin: 2rem auto !important;
        max-width: 100% !important;
        border-radius: 1rem !important;
    }
    
    .solutions-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 15px;
    }
    
    .solution-card {
        padding: 1.5rem;
        max-width: 100%;
    }
    
    .solution-content h3 {
        font-size: 1.3rem;
        margin-bottom: 0.8rem;
    }
    
    .solution-content p {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 1.2rem;
        text-indent: 3em;
    }
    
    .solution-features li {
        font-size: 0.9rem;
        padding: 0.4rem 0;
        padding-left: 1.2rem;
    }
    
    .product-grid { 
        display: grid;
        grid-template-columns: 1fr; 
        gap: 2rem; 
        padding: 0 15px;
    }
    
    .product-card {
        padding: 1.5rem;
        max-width: 100%;
        overflow: hidden;
    }
    
    .brand-img-lg {
        width: 80px;
        height: 80px;
        margin-bottom: 1rem;
    }
    
    .product-content h3 {
        font-size: 1.3rem;
        margin-bottom: 0.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        color: #111 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .product-content p {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-height: none;
        overflow: visible;
    }
    
    /* 标题移动端优化 */
    .section-title h2 { 
        font-size: 2rem; 
        color: #111 !important; 
        margin-bottom: 1.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        margin-top: 0 !important;
        line-height: 1.3;
        letter-spacing: 0.03em;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        position: relative !important;
        z-index: 10 !important;
    }
    
    .section-title p {
        font-size: 1.1rem;
        margin-bottom: 2rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        line-height: 1.5;
        color: #666;
        font-weight: 500;
    }
    
    /* 按钮移动端优化 */
    .btn-primary { 
        padding: 0.8rem 1.5rem; 
        font-size: 0.95rem; 
    }
    
    /* 联系我们部分移动端优化 */
    #contact {
        padding: 3rem 0;
        margin: 2rem auto !important;
        max-width: 100% !important;
        border-radius: 1rem !important;
    }
    
    #contact h2 {
        font-size: 2rem;
        margin-bottom: 1.5rem;
        margin-top: 0 !important;
        word-wrap: break-word;
        color: #111 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        position: relative !important;
        z-index: 10 !important;
    }
    
    #contact p {
        font-size: 1rem;
        margin-bottom: 2rem;
        word-wrap: break-word;
    }
    
    #contactForm {
        gap: 1rem;
    }
    
    #contactForm input, 
    #contactForm textarea {
        padding: 0.8rem;
        font-size: 0.95rem;
    }
    
    #contactForm textarea {
        min-height: 120px;
    }
    
    /* 页脚移动端优化 */
    .footer {
        padding: 2rem 0;
    }
    
    .footer-grid { 
        grid-template-columns: 1fr; 
        gap: 2rem; 
        text-align: center;
    }
    
    .footer-col h3 {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }
    
    .footer-links li {
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }
    
    .copyright {
        font-size: 0.85rem;
        padding-top: 1.5rem;
        margin-top: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
        width: 100%;
        box-sizing: border-box;
    }
    
    * {
        box-sizing: border-box;
    }
    
    html, body {
        width: 100%;
        overflow-x: hidden;
        word-wrap: break-word;
        overflow-wrap: break-word;
        font-size: 15px;
    }
    
    /* 强制移动端布局 */
    .hero {
        position: relative !important;
        width: 100% !important;
        left: 0 !important;
        right: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        overflow: hidden !important;
        border-radius: 0 !important;
    }
    
    .hero-content {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 10px !important;
        box-sizing: border-box !important;
    }
    
    /* 小屏设备文字优化 */
    p {
        text-align: justify;
        text-justify: inter-word;
        word-spacing: 0.05em;
        letter-spacing: 0.01em;
    }
    
    .hero {
        min-height: 50vh;
        padding: 4rem 0 2rem;
        border-radius: 0;
        width: 100vw;
        left: 50%;
        right: 50%;
        margin-left: -50vw;
        margin-right: -50vw;
        overflow: hidden;
    }
    
    .hero-content {
        padding: 0 10px;
        max-width: 100%;
        width: 100%;
    }
    
    .hero h1 {
        font-size: 1.6rem;
        line-height: 1.3;
        color: #ffffff !important;
        text-shadow: 2px 2px 5px rgba(0,0,0,0.8), 0 0 12px rgba(0,0,0,0.5);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .hero p {
        font-size: 0.85rem;
        line-height: 1.4;
        color: #ffffff !important;
        text-shadow: 1px 1px 2px rgba(0,0,0,0.8), 0 0 6px rgba(0,0,0,0.5);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .section-title h2 {
        font-size: 1.6rem;
        margin-top: 0 !important;
        line-height: 1.3;
        letter-spacing: 0.02em;
        color: #111 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        position: relative !important;
        z-index: 10 !important;
    }
    
    .section-title p {
        font-size: 0.95rem;
        line-height: 1.4;
        color: #666;
    }
    
    .about-section {
        padding: 2rem 0;
        margin: 1rem auto !important;
    }
    
    .about-section > div {
        padding: 0 10px;
        display: flex;
        flex-direction: column;
    }
    
    /* 小屏设备强制覆盖内联样式 */
    .about-content {
        flex-direction: column !important;
        gap: 1.5rem !important;
    }
    
    .about-image {
        flex: none !important;
        order: 1 !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        width: 100% !important;
    }
    
    .about-text {
        flex: none !important;
        order: 2 !important;
    }
    
    .about-text p {
        font-size: 0.9rem;
        line-height: 1.6;
        text-align: justify;
        text-justify: inter-word;
        margin-bottom: 1rem;
        color: #333;
        text-indent: 3em; /* 保持首行缩进 */
    }
    
    .about-image img {
        max-width: 200px;
        height: auto;
        align-self: center;
        margin: 0 auto;
        display: block;
    }
    
    .products {
        padding: 2rem 0;
        margin: 1rem auto !important;
    }
    
    .solutions {
        padding: 2rem 0;
        margin: 1rem auto !important;
    }
    
    .solutions-grid {
        display: grid;
        grid-template-columns: 1fr;
        padding: 0 10px;
        gap: 1.5rem;
    }
    
    .solution-card {
        padding: 1.2rem;
        min-height: auto;
    }
    
    .solution-content h3 {
        font-size: 1.1rem;
        line-height: 1.3;
    }
    
    .solution-content p {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: 1rem;
        text-indent: 3em;
    }
    
    .solution-features li {
        font-size: 0.8rem;
        padding: 0.3rem 0;
        padding-left: 1rem;
    }
    
    .product-grid {
        display: grid;
        grid-template-columns: 1fr;
        padding: 0 10px;
        gap: 1.5rem;
    }
    
    .product-card {
        padding: 1.2rem;
        min-height: 350px;
        max-height: none;
    }
    
    .product-content h3 {
        font-size: 1.1rem;
        line-height: 1.3;
        color: #111 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .product-content p {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: 1.2rem;
    }
    
    #contact {
        padding: 2rem 0;
        margin: 1rem auto !important;
    }
    
    #contact h2 {
        font-size: 1.6rem;
        margin-top: 0 !important;
        color: #111 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        position: relative !important;
        z-index: 10 !important;
    }
    
    #contact p {
        font-size: 0.9rem;
    }
    
    .btn-primary {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    .logo-img {
        width: 24px;
        height: 24px;
    }
    
    .nav-links a {
        font-size: 0.8rem;
        padding: 0.25rem 0.5rem;
    }
    
    .brand-img-lg {
        width: 70px;
        height: 70px;
    }
    
    .footer-grid {
        gap: 1.5rem;
    }
    
    .footer-col h3 {
        font-size: 1.1rem;
    }
    
    .footer-links li {
        font-size: 0.8rem;
    }
}