* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1A1A2E;
    --primary-light: #16213E;
    --secondary: #0F3460;
    --accent: #533483;
    --dark: #0A0A0A;
    --gray-900: #111111;
    --gray-800: #222222;
    --gray-700: #444444;
    --gray-600: #666666;
    --gray-500: #888888;
    --gray-400: #AAAAAA;
    --gray-300: #CCCCCC;
    --gray-200: #E5E5E5;
    --gray-100: #F5F5F5;
    --gray-50: #FAFAFA;
    --white: #FFFFFF;
    --tech-blue: #00D9FF;
    --tech-purple: #7B2FF7;
    --tech-pink: #FF006E;
    --gradient-tech: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #00D9FF 0%, #7B2FF7 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px 0 rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 12px 40px 0 rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 60px 0 rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    overflow-x: hidden;
    background: var(--white);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-link {
    padding: 10px 20px;
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: all 0.3s;
    border-radius: 8px;
}

.nav-link:hover {
    color: var(--gray-900);
    background: var(--gray-50);
}

.nav-link.active {
    color: var(--gray-900);
}

.btn-contact-nav {
    background: var(--gradient-accent);
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
}

.btn-contact-nav:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 3px;
}

/* Hero区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
    overflow: hidden;
}

.hero-bg-animation {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    animation: float 20s infinite;
    opacity: 0.1;
}

.circle-1 {
    width: 600px;
    height: 600px;
    top: -300px;
    right: -200px;
    background: radial-gradient(circle, var(--tech-blue) 0%, transparent 70%);
    animation-delay: 0s;
}

.circle-2 {
    width: 500px;
    height: 500px;
    bottom: -250px;
    left: -200px;
    background: radial-gradient(circle, var(--tech-purple) 0%, transparent 70%);
    animation-delay: 5s;
}

.circle-3 {
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    background: radial-gradient(circle, var(--tech-pink) 0%, transparent 70%);
    animation-delay: 10s;
}

.tech-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(102, 126, 234, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-left {
    color: var(--gray-900);
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
    color: var(--secondary);
}

.hero-title {
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.title-line {
    display: block;
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
}

.title-subline {
    display: block;
    font-size: 32px;
    font-weight: 300;
    color: var(--gray-600);
    letter-spacing: -0.5px;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--gray-900);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-500);
}

.stat-divider {
    width: 1px;
    background: var(--gray-200);
}

.hero-actions {
    display: flex;
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 18px;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 1.5px solid var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--gray-900);
    color: var(--gray-900);
    background: var(--gray-50);
}

/* AI核心展示 */
.tech-showcase {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 0.8s ease 0.3s both;
}

.ai-core {
    position: relative;
    width: 300px;
    height: 300px;
}

.core-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid;
    animation: rotate 20s linear infinite;
}

.ring-1 {
    border-color: rgba(0, 217, 255, 0.3);
    animation-duration: 20s;
}

.ring-2 {
    inset: 30px;
    border-color: rgba(123, 47, 247, 0.3);
    animation-duration: 15s;
    animation-direction: reverse;
}

.ring-3 {
    inset: 60px;
    border-color: rgba(255, 0, 110, 0.3);
    animation-duration: 10s;
}

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

.core-center {
    position: absolute;
    inset: 90px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.ai-icon {
    font-size: 64px;
    margin-bottom: 8px;
}

.ai-text {
    font-size: 16px;
    font-weight: 700;
    color: white;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 20px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: bounce 2s infinite;
}

.card-icon {
    font-size: 32px;
}

.card-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
}

.card-1 {
    top: 50px;
    left: 0;
    animation-delay: 0s;
}

.card-2 {
    top: 150px;
    right: 0;
    animation-delay: 0.5s;
}

.card-3 {
    bottom: 100px;
    left: 50px;
    animation-delay: 1s;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--gray-500);
    animation: fadeInUp 0.6s ease 0.6s both;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--gray-300);
    border-radius: 20px;
    margin: 0 auto 8px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--gray-400);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

.scroll-text {
    font-size: 12px;
    opacity: 0.8;
}

/* Section通用样式 */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(102, 126, 234, 0.1);
    color: var(--secondary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* 关于我们新样式 */
.about-section-new {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.about-card {
    background: white;
    padding: 40px 32px;
    border-radius: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--gray-200);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(102, 126, 234, 0.3);
}

.about-main {
    grid-column: span 2;
}

.about-icon-wrapper {
    margin-bottom: 24px;
}

.about-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.about-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.about-desc {
    font-size: 16px;
    color: var(--gray-600);
    line-height: 1.8;
}

.about-tags {
    display: flex;
    gap: 8px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.tag {
    padding: 6px 16px;
    background: rgba(102, 126, 234, 0.1);
    color: var(--secondary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

/* 产品中心 */
.products-section {
    background: var(--gray-50);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-featured {
    grid-column: span 2;
    grid-row: span 2;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 8px 16px;
    background: var(--gradient-accent);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    z-index: 10;
}

.product-image {
    height: 240px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-featured .product-image {
    height: 100%;
    min-height: 400px;
}

.product-overlay {
    position: relative;
    z-index: 1;
    text-align: center;
}

.product-icon-large {
    font-size: 80px;
    opacity: 0.8;
}

.product-1 {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.product-2 {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(123, 47, 247, 0.1) 100%);
}

.product-3 {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.1) 0%, rgba(255, 107, 107, 0.1) 100%);
}

.product-4 {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
}

.product-info {
    padding: 32px;
}

.product-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.product-desc {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-item {
    font-size: 14px;
    color: var(--gray-700);
}

.product-stats {
    display: flex;
    gap: 24px;
    margin-top: 20px;
}

.mini-stat {
    display: flex;
    flex-direction: column;
}

.stat-val {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-lbl {
    font-size: 13px;
    color: var(--gray-500);
}

/* 核心技术 */
.technology-section {
    background: white;
}

.tech-grid-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tech-card {
    background: white;
    padding: 40px 32px;
    border-radius: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--gray-200);
}

.tech-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(102, 126, 234, 0.3);
}

.tech-large {
    grid-column: span 2;
    grid-row: span 2;
}

.tech-icon-wrapper {
    margin-bottom: 24px;
}

.tech-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.tech-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.tech-desc {
    font-size: 16px;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 24px;
}

.tech-list {
    list-style: none;
    margin-top: 24px;
}

.tech-list li {
    padding: 8px 0;
    color: var(--gray-700);
    font-size: 15px;
}

/* 联系我们 */
.contact-section {
    background: var(--gray-50);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-left .section-tag {
    display: inline-block;
}

.contact-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.2;
    margin: 24px 0;
    color: var(--gray-900);
    letter-spacing: -1.5px;
}

.contact-desc {
    font-size: 18px;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.contact-benefits {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
}

.benefit-icon {
    font-size: 24px;
}

.contact-right {
    display: flex;
    justify-content: center;
}

.contact-card-new {
    background: white;
    padding: 40px;
    border-radius: 32px;
    box-shadow: var(--shadow-xl);
}

.contact-card-new h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 32px;
}

.contact-items-new {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item-new {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon-new {
    font-size: 24px;
}

.contact-label {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: white;
    padding: 80px 0 40px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--gray-400);
    font-size: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-column a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 12px;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
    color: var(--gray-500);
    font-size: 14px;
}

.footer-beian {
    margin-top: 8px;
}

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

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 响应式 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-right {
        order: -1;
    }
    
    .tech-showcase {
        height: 400px;
    }
    
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-main {
        grid-column: span 2;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-featured {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .tech-grid-layout {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .title-line {
        font-size: 48px;
    }
    
    .title-subline {
        font-size: 24px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-main {
        grid-column: span 1;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-featured {
        grid-column: span 1;
    }
    
    .tech-grid-layout {
        grid-template-columns: 1fr;
    }
    
    .tech-large {
        grid-column: span 1;
    }
    
    .contact-title {
        font-size: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}