/* CSS 重置和基础样式 */
* {
    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: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: #2563eb;
    font-weight: 700;
    font-size: 1.5rem;
}

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

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

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: #2563eb;
    transition: width 0.3s ease;
}

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

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

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

/* 首页横幅样式 */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 70px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
    z-index: 1;
    animation: bgShift 20s ease-in-out infinite;
}

@keyframes bgShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    z-index: 2;
    position: relative;
}

.hero-text {
    color: #1f2937;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    color: #111827;
}

.gradient-text {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 50%, #7c3aed 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 4s ease-in-out infinite;
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
    font-weight: 400;
    color: #4b5563;
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    text-align: center;
    cursor: pointer;
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
}

.btn::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 ease;
    z-index: 0;
}

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

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    border: 2px solid transparent;
    position: relative;
    z-index: 1;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.btn-secondary:hover {
    background: rgba(37, 99, 235, 0.1);
    color: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
}

.btn-full {
    width: 100%;
}

/* Hero 视觉区域 */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.hero-image {
    width: 100%;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
    max-width: 450px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(226, 232, 240, 0.6);
    border-radius: 12px;
    padding: 1.2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.6s ease;
    z-index: 0;
}

.feature-item:hover::before {
    left: 100%;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.8rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.feature-item:hover .feature-icon {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    transform: scale(1.1);
}

.feature-icon i {
    font-size: 1.1rem;
    color: #2563eb;
    transition: color 0.3s ease;
}

.feature-item:hover .feature-icon i {
    color: white;
}

.feature-item h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.3rem;
    position: relative;
    z-index: 1;
}

.feature-item p {
    font-size: 0.8rem;
    color: #6b7280;
    margin: 0;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}



/* Hero徽章 */
.hero-badge {
    display: inline-block;
    background: rgba(239, 246, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(219, 234, 254, 0.6);
    border-radius: 50px;
    padding: 6px 16px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #2563eb;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
    animation: badgeFloat 6s ease-in-out infinite;
}

.hero-badge:hover {
    background: rgba(239, 246, 255, 0.95);
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateY(-1px);
}

@keyframes badgeFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-2px); }
}

/* 装饰性几何元素 */
.hero-decorations {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.decoration-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(59, 130, 246, 0.4);
    border-radius: 50%;
    animation: dotFloat 8s ease-in-out infinite;
}

.dot-1 {
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}

.dot-2 {
    top: 60%;
    right: 20%;
    animation-delay: -2s;
    background: rgba(16, 185, 129, 0.4);
}

.dot-3 {
    bottom: 30%;
    left: 70%;
    animation-delay: -4s;
    background: rgba(139, 92, 246, 0.4);
}

.decoration-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
    animation: lineGlow 6s ease-in-out infinite;
}

.line-1 {
    top: 25%;
    left: 10%;
    width: 100px;
    animation-delay: 0s;
}

.line-2 {
    bottom: 40%;
    right: 15%;
    width: 80px;
    animation-delay: -3s;
    background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.2), transparent);
}

@keyframes dotFloat {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        opacity: 0.4;
    }
    50% { 
        transform: translateY(-20px) scale(1.2);
        opacity: 0.8;
    }
}

@keyframes lineGlow {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.6; }
}









/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

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

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

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 1.5rem;
}

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

.stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

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

.stat-label {
    color: #6b7280;
    font-weight: 500;
}

/* 核心业务样式 */
.services {
    padding: 100px 0;
    background: white;
}

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

.service-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-card.featured {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.service-card.featured::before {
    background: linear-gradient(90deg, #ffd700, #ffeb3b);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-icon i {
    font-size: 1.5rem;
    color: white;
}

.service-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.service-card.featured .service-title {
    color: white;
}

.service-description {
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-card.featured .service-description {
    color: rgba(255, 255, 255, 0.9);
}

.service-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: #4b5563;
}

.service-card.featured .service-features li {
    color: rgba(255, 255, 255, 0.9);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

.service-card.featured .service-features li::before {
    color: #ffd700;
}

.service-highlight {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 10px;
    border-left: 4px solid #ffd700;
}

.service-highlight p {
    margin: 0;
    font-style: italic;
}

/* 愿景样式 */
.vision {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.vision::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    z-index: 1;
}

.vision .container {
    position: relative;
    z-index: 2;
}

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

.vision-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.vision-description {
    font-size: 1.3rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.vision-goals {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.goal-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.08);
    padding: 1.5rem;
    border-radius: 16px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.goal-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.6s ease;
    z-index: 0;
}

.goal-item:hover::before {
    left: 100%;
}

.goal-item:hover {
    transform: translateX(8px);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(59, 130, 246, 0.3);
}

.goal-icon {
    width: 60px;
    height: 60px;
    background: rgba(59, 130, 246, 0.15);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.goal-item:hover .goal-icon {
    background: rgba(59, 130, 246, 0.25);
    transform: scale(1.05);
}

.goal-icon i {
    font-size: 1.5rem;
}

.goal-text {
    position: relative;
    z-index: 1;
}

.goal-text h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
}

.goal-text p {
    opacity: 0.85;
    color: rgba(255, 255, 255, 0.9);
}

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

.vision-circle {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    backdrop-filter: blur(15px);
    border: 2px solid rgba(59, 130, 246, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: visionPulse 6s ease-in-out infinite;
    position: relative;
    z-index: 2;
}

.vision-circle::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(59, 130, 246, 0.3), rgba(16, 185, 129, 0.3), rgba(139, 92, 246, 0.3));
    z-index: -1;
    animation: borderRotate 8s linear infinite;
}

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

.circle-content {
    text-align: center;
}

.circle-content i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.circle-content span {
    font-size: 1.2rem;
    font-weight: 600;
}

@keyframes visionPulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }
    50% { 
        transform: scale(1.02);
        box-shadow: 0 0 0 20px rgba(59, 130, 246, 0);
    }
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background: #f8fafc;
}

.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: center;
    gap: 1.5rem;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: white;
}

.contact-details h4 {
    font-size: 1.2rem;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #6b7280;
    font-size: 1.1rem;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

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

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

/* 页脚样式 */
.footer {
    background: #1f2937;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #2563eb;
}

.footer-logo p {
    opacity: 0.8;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    color: #2563eb;
}

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

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #2563eb;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: 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;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.8rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
        gap: 1rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .vision-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .vision-circle {
        width: 250px;
        height: 250px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 0.6rem;
        align-items: stretch;
    }
    
    .btn {
        text-align: center;
        padding: 12px 16px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .about-stats {
        flex-direction: column;
    }
    
    .vision-circle {
        width: 200px;
        height: 200px;
    }
    
    .feature-item {
        padding: 1rem;
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
    }
    
    .feature-icon i {
        font-size: 1rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 加载动画 */
.loading {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}