/* IT官网模板样式 - 现代化设计 */

/* CSS变量定义 */
:root {
    /* 主色调 - 蓝色系 */
    --primary-blue: #2563eb;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1e40af;
    
    /* 辅助色 */
    --secondary-purple: #8b5cf6;
    --secondary-teal: #14b8a6;
    --secondary-orange: #f59e0b;
    
    /* 中性色 */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --gray: #e2e8f0;
    --dark-gray: #475569;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-purple), var(--primary-blue));
    --gradient-hero: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* 边框圆角 */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* 字体大小 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 通用样式 */
a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: var(--text-base);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* 渐变文字 */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-blue);
}

.nav-logo i {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

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

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

/* 英雄区域 - 现代化设计 */
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(48deg, #fdfeff, #c5e2ff);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
    isolation: isolate;
    will-change: transform; /* 优化动画性能 */
    transform: translateZ(0); /* 硬件加速 */
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(33, 150, 243, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(66, 165, 245, 0.15) 0%, transparent 50%);
    z-index: -1;
    will-change: transform; /* 优化动画性能 */
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.hero-content {
    color: #1e3a8a; /* 深蓝色文字，在浅蓝背景上更清晰 */
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--text-xl);
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.7;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.stat-number {
    display: block;
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--text-sm);
    color: #475569; /* 中灰色，在浅蓝背景上更清晰 */
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-visual {
    position: relative;
    height: 500px;
    animation: fadeInRight 1s ease-out 0.2s both;
}

.hero-graphic {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-orb {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: rotate 20s linear infinite;
}

.hero-orb::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-icons {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
}

.tech-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1e40af; /* 深蓝色图标 */
    font-size: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: float 6s ease-in-out infinite;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.2);
}

.tech-icon:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.3);
}

.tech-1 { top: 10%; left: 20%; animation-delay: 0s; }
.tech-2 { top: 20%; right: 10%; animation-delay: 1s; }
.tech-3 { bottom: 30%; left: 10%; animation-delay: 2s; }
.tech-4 { bottom: 20%; right: 20%; animation-delay: 3s; }
.tech-5 { top: 50%; left: 5%; animation-delay: 4s; }
.tech-6 { top: 40%; right: 5%; animation-delay: 5s; }

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: #475569; /* 中灰色，在浅蓝背景上更清晰 */
    font-size: var(--text-sm);
    opacity: 0.8;
    animation: bounce 2s infinite;
}

.hero-scroll::after {
    content: '↓';
    display: block;
    text-align: center;
    font-size: 1.5rem;
    margin-top: 0.5rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(120deg); }
    66% { transform: translateY(5px) rotate(240deg); }
}

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

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 150px;
}

.hero-wave .shape-fill {
    fill: var(--white);
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 服务项目 */
.services {
    padding: 6rem 0;
    background: var(--light-gray);
    position: relative;
    z-index: 1;
}

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

.service-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

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

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

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

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    text-align: left;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

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

/* 解决方案 */
.solutions {
    padding: 6rem 0;
    background: var(--white);
}

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

.solution-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--gray);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.solution-image {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem; 
}

.solution-image i {
    font-size: 2rem;
    color: var(--white);
}

.solution-card h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.solution-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

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

/* 技术栈 */
.tech-stack {
    padding: 6rem 0;
    background: var(--light-gray);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.tech-category {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.tech-category h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
    text-align: center;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.tech-item {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
}

/* 成功案例 */
.case-studies {
    padding: 6rem 0;
    background: var(--white);
}

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

.case-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

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

.case-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-image i {
    font-size: 3rem;
    color: var(--white);
}

.case-content {
    padding: 2rem;
}

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

.case-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.case-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.case-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    font-weight: 500;
    font-size: var(--text-sm);
}

.case-stats i {
    font-size: 1rem;
}

/* 客户评价 */
.testimonials {
    padding: 6rem 0;
    background: var(--light-gray);
}

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

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content p { 
    color: var(--text-light);
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar i {
    color: var(--white);
    font-size: 1.5rem;
}

.author-info h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.author-info span {
    color: var(--text-light);
    font-size: var(--text-sm);
}

/* 关于我们 */
.about {
    padding: 6rem 0;
    background: var(--white);
}

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

.about-text h2 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.about-text p {
    font-size: var(--text-lg);
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

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

.stat-item h3 {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-light);
    font-weight: 500;
}

.about-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

/* 联系我们 */
.contact {
    padding: 6rem 0;
    background: var(--light-gray);
}

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

.contact-info h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item i {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.contact-item span {
    font-size: var(--text-lg);
    color: var(--text-dark);
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

/* 微信二维码样式 */
.contact-qr {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg); 
}

.contact-qr h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    text-align: center;
}

.qr-container {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.qr-code {
    text-align: center;
    flex-shrink: 0;
}

.qr-image {
    width: 150px;
    height: 150px; 
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem; 
}

.qr-image i {
    font-size: 4rem;
    color: var(--primary-blue);
}

.qr-code p {
    font-size: var(--text-sm);
    color: var(--text-lighter);
    font-weight: 500;
}

.qr-info h4 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.qr-info p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.qr-benefits {
    list-style: none;
}

.qr-benefits li {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: var(--text-base);
}

.qr-benefits li:before {
    content: "✓";
    color: var(--success-green);
    font-weight: bold;
    margin-right: 0.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--gray);
    border-radius: var(--border-radius);
    font-size: var(--text-base);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

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

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

.footer-info h3 {
    font-size: var(--text-xl);
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-info p {
    color: var(--text-lighter);
    margin-bottom: 1.5rem;
}

.footer-links h4 {
    font-size: var(--text-lg);
    margin-bottom: 1rem;
    color: var(--white);
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-lighter);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.qr-code {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.qr-image {
    width: 200px;
    height: 170px; 
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-image i {
    font-size: 2rem;
    color: var(--dark-gray);
}

.qr-info p {
    font-size: var(--text-sm);
    color: var(--text-lighter);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-lighter);
}

.footer-icp {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-icp a {
    color: var(--text-lighter);
    text-decoration: none;
    font-size: var(--text-sm);
}

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

.separator {
    color: var(--text-lighter);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
        margin-top: 30px;;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    /* .testimonials{
        padding: 2rem 0;
    }

    .solutions{
        padding: 2rem 0;
    }

    .services{
        padding: 2rem 0;
    }

    .tech-stack{
        padding: 2rem 0;
    }

    .about,.contact{ 
        padding: 2rem 0;
    } */
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .services-grid,
.solutions-grid,
    .tech-grid,
    .cases-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }

    .qr-code {
     display: block;
    }
}


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

.solution-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .solution-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    }

.solution-image {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    padding: 1.5rem;
    text-align: center;
    margin-left:1.5rem;
}

    .solution-image i {
        font-size: 2.5rem;
    }

.solution-content {
    padding: 1.5rem;
}

    .solution-content h3 {
        color: #1f2937;
        margin-bottom: 1.25rem;
        font-size: 1.25rem;
    }

.solution-problem,
.solution-approach,
.solution-results {
    margin-bottom: 1.25rem;
}

.problem-label,
.approach-label,
.results-label {
    display: inline-block;
    background: #f3f4f6;
    color: #4b5563;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 0.5rem;
}

.solution-results ul {
    list-style: none;
    padding-left: 0;
    margin-top: 0.5rem;
}

.solution-results li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.25rem;
}

    .solution-results li:before {
        content: "✓";
        position: absolute;
        left: 0;
        color: #10b981;
        font-weight: bold;
    }

.solution-results strong {
    color: #10b981;
}

.solution-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

.tech-tag {
    background: #eff6ff;
    color: #1d4ed8;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    border: 1px solid #dbeafe;
}







/* 右侧导航栏样式 */
.right_nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

    .right_nav li {
        position: relative;
    }

.iconBox {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 180px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    background:#fff;    
}

    .iconBox:hover {
        background: rgba(255, 255, 255, 0.25);
        transform: translateX(-5px);
        background: #fff;
    }

    .iconBox i {
        font-size: 24px;
        width: 30px;
        text-align: center;
    }

    .iconBox h4 {
        font-size: 16px;
        font-weight: 500;
    }

.hideBox {
    position: absolute;
    left: -220px;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s ease;
    z-index: 10;
    min-width: 200px;
}


/* 回到顶部按钮默认隐藏 */
.right_nav li.top-li {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

    .right_nav li.top-li.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

/* 关键改进：确保二维码区域可以悬停 */
.right_nav li:hover .hideBox {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.hideBox .hb {
    text-align: center;
}

.hideBox h5 {
    color: #333;
    margin-bottom: 15px;
    font-size: 14px;
}

.hideBox img {
    width: 150px;
    height: 150px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.code-block {
    background: #1e1e1e;
    border-radius: 10px;
    padding: 20px;
    overflow-x: auto;
    margin-top: 20px;
}

pre {
    color: #d4d4d4;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.comment {
    color: #6a9955;
}

.tag {
    color: #569cd6;
}

.attribute {
    color: #9cdcfe;
}

.value {
    color: #ce9178;
}

.features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
    justify-content: center;
}

.feature {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    flex: 1;
    min-width: 200px;
    transition: transform 0.3s ease;
}

    .feature:hover {
        transform: translateY(-5px);
    }

    .feature i {
        font-size: 2rem;
        margin-bottom: 15px;
        color: #fdbb2d;
    }

    .feature h3 {
        margin-bottom: 10px;
        font-size: 1.2rem;
    }

.explanation {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
}

    .explanation h3 {
        margin-bottom: 10px;
        color: #fdbb2d;
    }

@media (max-width: 768px) {
    .content {
        flex-direction: column;
    }

    .right_nav {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 100%;
        align-items: center;
    }

    .hideBox {
        left: 50%;
        top: 100%;
        margin-left: 0;
        margin-top: 15px;
        transform: translateX(-50%) translateY(-10px);
    }

    .right_nav li:hover .hideBox {
        transform: translateX(-50%) translateY(0);
    }
}



.hero-visual {
    position: relative;
    height: 500px;
    animation: fadeInRight 1s ease-out 0.2s both;
}

.hero-graphic {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-orb {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: rotate 20s linear infinite;
}

    .hero-orb::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 200px;
        height: 200px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
        border: 1px solid rgba(255, 255, 255, 0.05);
    }

.tech-radial {
    position: absolute;
/*    top: 50%;
    left: 50%;*/
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    animation: fadeInRight 1s ease-out 0.5s both;
    margin-top: -30px; /* 向上偏移30px，使其更垂直居中 */
}

.radial-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
    z-index: 10;
    animation: pulse 2s ease-in-out infinite;
}

    .radial-center span {
        font-size: 0.8rem;
        font-weight: 600;
        margin-top: 0.5rem;
    }

.radial-item {
    position: absolute;
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.2);
   // transition: all 0.3s ease;
   // animation: float 6s ease-in-out infinite;
}

    .radial-item:hover {
        background: rgba(255, 255, 255, 1);
        transform: scale(1.1);
        box-shadow: 0 6px 20px rgba(30, 64, 175, 0.3);
    }

    .radial-item span {
        font-size: 0.7rem;
        font-weight: 600;
        color: var(--text-dark);
        margin-top: 0.25rem;
    }

/* 径向布局位置 - 调整垂直居中 */
.item-1 {
    top: 10%;
    left: 50%;
   // transform: translateX(-50%);
    //animation-delay: 0s;
}

.item-2 {
    top: 25%;
    right: 15%;
    //animation-delay: 1s;
}

.item-3 {
    bottom: 25%;
    right: 15%;
   // animation-delay: 2s;
}

.item-4 {
    bottom: 10%;
    left: 50%;
  //  transform: translateX(-50%);
   // animation-delay: 3s;
}

.item-5 {
    bottom: 25%;
    left: 15%;
    //animation-delay: 4s;
}

.item-6 {
    top: 25%;
    left: 15%;
   //       animation-delay: 5s;
}
/* 在CSS文件的适当位置添加以下样式 */

/* 页脚二维码优化 */
.footer-qr .qr-image img {
    max-width: 120px;
    height: auto;
    transition: all 0.3s ease;
}

/* 右侧导航栏二维码优化 */
.hideBox img {
    max-width: 120px;
    height: auto;
    transition: all 0.3s ease;
}

/* 手机屏幕响应式优化 */
@media (max-width: 768px) {
    /* 优化页脚二维码显示 */
    .footer-qr .qr-image img {
        max-width: 100px;
    }
    
    /* 隐藏右侧导航栏 */
    .right_nav {
        display: none !important;
    }
    
    /* 优化页脚布局 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-qr {
        text-align: center;
        order: -1; /* 将二维码移到前面 */
    }
    
    .footer-qr .qr-image img {
        max-width: 120px;
        margin: 0 auto;
    }

    .qr-image {  
    margin: 0 auto 0rem;
}

.qr-container
{
    display: inline;

}

.qr-info{
    margin-top: 20px;
}
}

/* 超小屏幕进一步优化 */
@media (max-width: 480px) {
    .footer-qr .qr-image img {
        
    }
    
    /* 确保页脚内容在小屏幕上正常显示 */
    .footer-info,
    .footer-links {
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* 平板设备优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .footer-qr .qr-image img {
        max-width: 110px;
    }
    
    .hideBox img {
        max-width: 110px;
    }
}