/* ======================
   雷牛科技门户网站样式
   ====================== */

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0B1E33; /* 深蓝 - 科技与稳重 */
    --secondary-color: #00FFC6; /* 荧光青 - 智慧与数据流 */
    --accent-color: #FF6B4A; /* 活力橙 - 速度与竞技 */
    --text-light: #ffffff;
    --text-dark: #333333;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

body {
    font-family: 'Inter', 'Poppins', '思源黑体', '苹方', sans-serif;
    background: linear-gradient(135deg, var(--primary-color), #081525);
    color: var(--text-light);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* 粒子背景容器 */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* 隐藏的牛元素装饰 */
.hidden-cow-decoration {
    position: fixed;
    bottom: 20px;
    right: 20px;
    opacity: 0.1;
    font-size: 40px;
    z-index: -1;
    pointer-events: none;
}

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

/* 顶部导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(11, 30, 51, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(11, 30, 51, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

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

.logo-text .cn {
    font-weight: 700;
    font-size: 18px;
    color: var(--secondary-color);
}

.logo-text .en {
    font-size: 12px;
    color: var(--text-light);
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-color);
}

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

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

.cta-button {
    background: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    background: var(--secondary-color);
    color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 255, 198, 0.5);
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 10;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

.btn-primary, .btn-secondary {
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--primary-color);
    box-shadow: 0 5px 20px rgba(0, 255, 198, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 198, 0.5);
}

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

.btn-secondary:hover {
    background: var(--secondary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* 悬浮元素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-item {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 6s infinite ease-in-out;
}

.floating-item.camera { top: 20%; left: 10%; animation-delay: 0s; }
.floating-item.fitness { top: 60%; left: 80%; animation-delay: 2s; }
.floating-item.car { top: 40%; left: 70%; animation-delay: 4s; }

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* 合作伙伴区域 */
.partners {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.2);
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.partner-logo {
    width: 120px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 14px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.partner-logo:hover {
    opacity: 1;
}

/* 核心业务板块 */
.core-business {
    padding: 100px 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
}

.business-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.business-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.business-card:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: var(--secondary-color);
    box-shadow: 0 20px 40px rgba(0, 255, 198, 0.2);
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.business-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.card-description {
    font-size: 1rem;
    opacity: 0.8;
    line-height: 1.6;
}

/* 业务深度展示 */
.business-details {
    padding: 80px 0;
}

.detail-section {
    margin-bottom: 80px;
}

.detail-content {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
}

.detail-content.left-image {
    flex-direction: row;
}

.detail-content.right-image {
    flex-direction: row-reverse;
}

.detail-image {
    flex: 1;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 18px;
    border: 2px dashed var(--glass-border);
}

.detail-text {
    flex: 1;
}

.detail-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.detail-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    opacity: 0.9;
}

.features {
    list-style: none;
}

.features li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

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

/* 公司数据与简介 */
.company-stats {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.stat-item {
    padding: 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

/* 特殊处理服务人次的字体大小 */
.stat-item:nth-child(4) .stat-number {
    font-size: 1.8rem; /* 缩小服务人次的字体 */
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.8;
}

.company-intro {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
}

/* 地址与地图 */
.address-map {
    padding: 80px 0;
}

.address-info {
    text-align: center;
    margin-bottom: 40px;
}

.address-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.full-address {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.phone {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-top: 10px;
}

.map-placeholder {
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    border: 2px dashed var(--glass-border);
}

.map-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.map-marker {
    font-size: 3rem;
    margin-bottom: 10px;
}

.map-overlay p {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* 底部 */
.footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 60px 0 30px;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo .logo-image {
    width: 35px;
    height: 35px;
}

.company-name {
    font-size: 16px;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 25px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

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

.social-icon {
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--secondary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
}

.copyright p {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 5px;
}

.slogan {
    color: var(--secondary-color);
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .detail-content {
        flex-direction: column !important;
    }
    
    .detail-image {
        height: 200px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    /* 移动端进一步缩小服务人次字体 */
    .stat-item:nth-child(4) .stat-number {
        font-size: 1.4rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-up:nth-child(2) { animation-delay: 0.2s; }
.fade-in-up:nth-child(3) { animation-delay: 0.4s; }
.fade-in-up:nth-child(4) { animation-delay: 0.6s; }