/* 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: #e2e8f0;
    background: #0f172a;
    overflow-x: hidden;
}

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

.logo-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-main {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-text h2 {
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-text span {
    font-size: 0.8rem;
    color: #94a3b8;
    display: block;
}

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

.nav-link {
    text-decoration: none;
    color: #e2e8f0;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: #00d4ff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    transition: width 0.3s ease;
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #e2e8f0;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, rgba(15, 23, 42, 0) 70%);
}

.bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 153, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(148, 163, 184, 0.03) 0%, transparent 50%);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.element-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.element-3 {
    width: 80px;
    height: 80px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg);
        opacity: 0.1;
    }
    50% { 
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.2;
    }
}

.hero-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 2rem;
}

.hero-badge {
    display: inline-block;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    padding: 0.5rem 1.5rem;
    margin-bottom: 2rem;
    color: #00d4ff;
    font-size: 0.9rem;
    font-weight: 500;
}

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

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #94a3b8;
    margin-bottom: 3rem;
    font-weight: 400;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #94a3b8;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-outline {
    background: transparent;
    color: #00d4ff;
    border: 2px solid #00d4ff;
}

.btn-outline:hover {
    background: #00d4ff;
    color: white;
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-right: 2px solid #00d4ff;
    border-bottom: 2px solid #00d4ff;
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: rotate(45deg) translateY(0);
    }
    40% {
        transform: rotate(45deg) translateY(-10px);
    }
    60% {
        transform: rotate(45deg) translateY(-5px);
    }
}

/* 通用区块样式 */
section {
    padding: 5rem 0;
    position: relative;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    font-size: 1.1rem;
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们样式 */
.about {
    background: #1e293b;
}

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

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 200px;
    background: linear-gradient(135deg, #334155, #475569);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 3rem;
}

.image-placeholder span {
    font-size: 1rem;
    margin-top: 1rem;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #e2e8f0;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #94a3b8;
    line-height: 1.8;
}

.about-features {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border-left: 3px solid #00d4ff;
}

.feature-item i {
    font-size: 1.5rem;
    color: #00d4ff;
    width: 40px;
    text-align: center;
}

.feature-item h4 {
    color: #e2e8f0;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #94a3b8;
    margin: 0;
    font-size: 0.9rem;
}

/* 传统业务样式 */
.traditional {
    background: #0f172a;
}

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

.service-card {
    background: #1e293b;
    padding: 2.5rem;
    border-radius: 15px;
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.service-card p {
    color: #94a3b8;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: 0.5rem 0;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.service-card li i {
    color: #00d4ff;
    font-size: 0.8rem;
}

/* AI解决方案样式 */
.ai-solutions {
    background: #1e293b;
}

.ai-features {
    display: grid;
    gap: 3rem;
}

.ai-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.ai-feature:nth-child(even) {
    direction: rtl;
}

.ai-feature:nth-child(even) .feature-content {
    direction: ltr;
}

.feature-content h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: #e2e8f0;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-content p {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.feature-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.feature-tags span {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.feature-visual {
    display: flex;
    justify-content: center;
}

.visual-placeholder {
    width: 200px;
    height: 150px;
    background: linear-gradient(135deg, #334155, #475569);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 3rem;
}

/* 成功案例样式 */
.cases {
    background: #0f172a;
}

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

.case-card {
    background: #1e293b;
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #334155, #475569);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 3rem;
}

.case-content {
    padding: 1.5rem;
}

.case-content h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.case-content p {
    color: #94a3b8;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.case-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.case-tags span {
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* 联系我们样式 */
.contact {
    background: #1e293b;
}

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

.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-info p {
    color: #94a3b8;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-details {
    display: grid;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.contact-item i {
    font-size: 1.2rem;
    color: #00d4ff;
    width: 30px;
}

.contact-item strong {
    color: #e2e8f0;
    display: block;
    margin-bottom: 0.2rem;
}

.contact-item span {
    color: #94a3b8;
    font-size: 0.9rem;
}

.contact-form {
    background: #0f172a;
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.contact-form h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: #e2e8f0;
    text-align: center;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: #1e293b;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
    color: #e2e8f0;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #64748b;
}

/* 页脚样式 */
.footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

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

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

.footer-brand p {
    color: #94a3b8;
    line-height: 1.6;
}

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

.footer-column h4 {
    margin-bottom: 1rem;
    color: #e2e8f0;
}

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

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

.footer-column a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: #00d4ff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    color: #64748b;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .ai-feature {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .ai-feature:nth-child(even) {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .services-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .service-card,
    .case-card {
        padding: 1.5rem;
    }
}

/* 导航栏响应式 */
@media (max-width: 768px) {
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(15, 23, 42, 0.98);
        padding: 1rem;
        backdrop-filter: blur(20px);
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}