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

:root {
    --primary-color: #0066FF;
    --primary-dark: #0052CC;
    --secondary-color: #00D4FF;
    --accent-color: #7B61FF;
    --dark-bg: #0A0E27;
    --darker-bg: #050819;
    --card-bg: #111836;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A8B8;
    --border-color: rgba(255, 255, 255, 0.1);
    --gradient-1: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
    --gradient-2: linear-gradient(135deg, #7B61FF 0%, #00D4FF 100%);
    --shadow: 0 10px 40px rgba(0, 102, 255, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo i {
    font-size: 28px;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 16px;
    color: var(--text-secondary);
    position: relative;
    padding: 5px 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 50px rgba(0, 102, 255, 0.3);
}

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

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

.btn-link {
    padding: 8px 0;
    color: var(--primary-color);
    font-weight: 500;
}

.btn-link:hover {
    color: var(--secondary-color);
}

/* ========== Section ========== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

/* ========== 首页Banner ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(123, 97, 255, 0.15) 0%, transparent 50%),
        var(--dark-bg);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1s ease;
}

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

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

/* ========== 核心优势 ========== */
.features {
    background: var(--darker-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========== 产品展示 ========== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.product-image {
    height: 200px;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon {
    font-size: 64px;
    color: white;
}

.product-content {
    padding: 30px;
}

.product-content h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.product-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* ========== 解决方案 ========== */
.solutions {
    background: var(--darker-bg);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.solution-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.solution-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(123, 97, 255, 0.1) 100%);
}

.solution-image {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--gradient-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.solution-content h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.solution-content p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ========== 客户案例 ========== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.case-content h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.case-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.case-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    padding: 6px 16px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 20px;
    font-size: 14px;
    color: var(--primary-color);
}

/* ========== 新闻动态 ========== */
.news {
    background: var(--darker-bg);
}

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

.news-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
    position: relative;
}

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

.news-date {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.news-date .day {
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
}

.news-date .month {
    font-size: 12px;
}

.news-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    padding-right: 70px;
}

.news-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* ========== CTA ========== */
.cta {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.2) 0%, rgba(123, 97, 255, 0.2) 100%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

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

/* ========== 页脚 ========== */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

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

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--gradient-1);
    border-color: transparent;
    color: white;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-section ul li i {
    color: var(--primary-color);
    margin-right: 10px;
    width: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
    
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--card-bg);
        flex-direction: column;
        align-items: center;
        padding: 30px;
        gap: 20px;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-actions .btn {
        display: none;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid,
    .products-grid,
    .cases-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .btn {
        padding: 10px 24px;
        font-size: 14px;
    }
}

/* ========== 高亮动画效果 ========== */
.product-card.highlight {
    animation: highlightPulse 2s ease-in-out;
    box-shadow: 0 0 30px rgba(0, 102, 255, 0.6);
}

@keyframes highlightPulse {
    0%, 100% {
        box-shadow: 0 10px 40px rgba(0, 102, 255, 0.2);
    }
    50% {
        box-shadow: 0 0 60px rgba(0, 102, 255, 0.8);
        transform: scale(1.02);
    }
}
}