/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

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

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
}

.logo-img {
    height: 55px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #2563eb;
}

/* 语言切换器 */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
}

.lang-select {
    padding: 8px 12px;
    border: 1px solid #e2e8f0;
    background: white;
    color: #64748b;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    outline: none;
    min-width: 100px;
}

.lang-select:hover {
    border-color: #2563eb;
}

.lang-select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    color: white;
    padding-top: 80px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-animation {
    position: relative;
    width: 400px;
    height: 400px;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 20%;
    animation-delay: 0s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.05));
}

.element-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 1.5s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.03));
}

.element-3 {
    width: 60px;
    height: 60px;
    bottom: 30%;
    left: 30%;
    animation-delay: 3s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
}

.element-4 {
    width: 100px;
    height: 100px;
    top: 40%;
    right: 40%;
    animation-delay: 4.5s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.7;
    }
    25% { 
        transform: translateY(-20px) rotate(90deg); 
        opacity: 1;
    }
    50% { 
        transform: translateY(-10px) rotate(180deg); 
        opacity: 0.8;
    }
    75% { 
        transform: translateY(-30px) rotate(270deg); 
        opacity: 0.9;
    }
}

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

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 添加渐变背景动画 */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 鼠标跟随光标 */
.mouse-follower {
    position: fixed;
    width: 20px;
    height: 20px;
    background: rgba(37, 99, 235, 0.6);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transition: width 0.3s, height 0.3s;
}

.mouse-follower::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    background: rgba(37, 99, 235, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 2s infinite;
}

/* 悬停时放大光标 */
a:hover ~ .mouse-follower,
button:hover ~ .mouse-follower,
.service-card:hover ~ .mouse-follower {
    width: 40px;
    height: 40px;
    background: rgba(37, 99, 235, 0.8);
}







/* 关于我们 */
.about {
    padding: 100px 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h3 {
    font-size: 1.8rem;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    color: #475569;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.company-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.info-item i {
    color: #2563eb;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.info-item h4 {
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.info-item p {
    color: #64748b;
    font-size: 0.95rem;
    margin: 0;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: #2563eb;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #64748b;
    font-weight: 500;
}

/* 服务 */
.services {
    padding: 100px 0;
    background: white;
}

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

.service-card {
    padding: 2.5rem;
    background: #f8fafc;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.service-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.service-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    background: white;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

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

.service-card h3 {
    font-size: 1.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.service-card p {
    color: #64748b;
    line-height: 1.6;
}

/* 联盟平台 */
.platform {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
}

.platform .section-header h2,
.platform .section-header p {
    color: white;
}

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

.platform-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature i {
    font-size: 2rem;
    color: #3b82f6;
    margin-top: 0.2rem;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.feature p {
    color: #cbd5e1;
    line-height: 1.6;
}

.platform-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.network-animation {
    position: relative;
    width: 300px;
    height: 300px;
    overflow: hidden;
}

.node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #3b82f6;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.node.center {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    background: #2563eb;
}

.node:nth-child(2) {
    top: 20%;
    left: 20%;
    animation-delay: 0.3s;
}

.node:nth-child(3) {
    top: 20%;
    right: 20%;
    animation-delay: 0.6s;
}

.node:nth-child(4) {
    bottom: 20%;
    left: 20%;
    animation-delay: 0.9s;
}

.node:nth-child(5) {
    bottom: 20%;
    right: 20%;
    animation-delay: 1.2s;
}

.node:nth-child(6) {
    top: 50%;
    left: 10%;
    animation-delay: 1.5s;
}

.node:nth-child(7) {
    top: 50%;
    right: 10%;
    animation-delay: 1.8s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: #f8fafc;
    margin-bottom: 0;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.contact-item i {
    color: #2563eb;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.contact-item h4 {
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #64748b;
    margin: 0.2rem 0;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    padding: 60px 0 0;
    margin: 0;
    position: relative;
    bottom: 0;
    width: 100%;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #f1f5f9;
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-section p {
    color: #cbd5e1;
    margin-bottom: 1rem;
}

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

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

.footer-section ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #3b82f6;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: #334155;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #3b82f6;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding: 2rem 0 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #94a3b8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .language-switcher {
        margin-left: 0;
        margin-top: 1rem;
        justify-content: center;
    }
    
    .lang-select {
        min-width: 80px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .platform-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .service-card {
        padding: 2rem;
    }
    
    .contact-form {
        padding: 2rem;
    }
}