/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066cc;
    --secondary-color: #00a8ff;
    --accent-color: #4834d4;
    --dark-color: #1a1a1a;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --silver-color: #c0c0c0;
    --white-color: #ffffff;
    --gradient-primary: linear-gradient(135deg, #0066cc, #00a8ff);
    --gradient-secondary: linear-gradient(135deg, #4834d4, #686de0);
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 10px 40px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
}

.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;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 102, 204, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-light);
}

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

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

.logo-image {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.logo-text h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

.logo-subtitle {
    font-size: 0.8rem;
    color: var(--gray-color);
    font-weight: 400;
}

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

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* 主页横幅 - 酷炫科技风 */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: 
        radial-gradient(ellipse at center, rgba(0, 102, 204, 0.3) 0%, transparent 70%),
        linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.tech-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridMove 25s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

.circuit-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 48%, rgba(0, 255, 255, 0.3) 49%, rgba(0, 255, 255, 0.3) 51%, transparent 52%),
        linear-gradient(0deg, transparent 48%, rgba(0, 255, 255, 0.2) 49%, rgba(0, 255, 255, 0.2) 51%, transparent 52%);
    background-size: 200px 200px;
    animation: circuitFlow 8s linear infinite;
}

@keyframes circuitFlow {
    0% { background-position: 0 0; }
    100% { background-position: 200px 200px; }
}

.data-stream {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 98px,
        rgba(0, 255, 255, 0.1) 100px
    );
    animation: dataFlow 3s linear infinite;
}

@keyframes dataFlow {
    0% { transform: translateX(-100px); }
    100% { transform: translateX(100px); }
}

.hologram-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    transform: translate(-50%, -50%);
    border: 2px solid rgba(0, 255, 255, 0.3);
    border-radius: 50%;
    animation: hologramSpin 10s linear infinite;
}

@keyframes hologramSpin {
    0% { transform: translate(-50%, -50%) rotate(0deg) scale(1); }
    50% { transform: translate(-50%, -50%) rotate(180deg) scale(1.1); }
    100% { transform: translate(-50%, -50%) rotate(360deg) scale(1); }
}

.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(0, 255, 255, 0.8);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    animation: float 8s ease-in-out infinite;
}

.floating-particles::before {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.floating-particles::after {
    top: 60%;
    right: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) translateX(0px); opacity: 0.3; }
    25% { transform: translateY(-30px) translateX(10px); opacity: 1; }
    50% { transform: translateY(-20px) translateX(-10px); opacity: 0.7; }
    75% { transform: translateY(-40px) translateX(15px); opacity: 1; }
}

/* 3D科技元素 */
.tech-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.rotating-ring {
    position: absolute;
    top: 20%;
    right: 10%;
    width: 150px;
    height: 150px;
    border: 3px solid transparent;
    border-top: 3px solid rgba(0, 255, 255, 0.6);
    border-right: 3px solid rgba(0, 255, 255, 0.3);
    border-radius: 50%;
    animation: rotate 4s linear infinite;
}

.pulse-circle {
    position: absolute;
    bottom: 20%;
    left: 15%;
    width: 100px;
    height: 100px;
    border: 2px solid rgba(0, 255, 255, 0.4);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.scanning-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(0, 255, 255, 0.8), transparent);
    animation: scan 6s linear infinite;
}

@keyframes scan {
    0% { left: 0; }
    100% { left: 100%; }
}

.matrix-rain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="10" fill="rgba(0,255,255,0.1)">01010101</text></svg>') repeat;
    animation: matrixFall 20s linear infinite;
}

@keyframes matrixFall {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 1s ease forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.3s;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeIn 1s ease forwards 0.6s;
    opacity: 0;
}

@keyframes fadeIn {
    to { opacity: 0.9; }
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeIn 1s ease forwards 0.9s;
    opacity: 0;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

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

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(45deg);
}

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

/* 通用区块样式 */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    background: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.about-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

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

.about-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.about-info p {
    color: var(--gray-color);
    line-height: 1.6;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray-color);
    font-weight: 500;
}

/* 产品服务 */
.services {
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 102, 204, 0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

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

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

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--gray-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.service-features span {
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 解决方案 */
.solutions {
    background: var(--light-color);
}

.solutions-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    background: white;
    border-radius: var(--border-radius);
    padding: 10px;
    box-shadow: var(--shadow-light);
    flex-wrap: wrap;
    gap: 10px;
}

.tab-btn {
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: var(--gray-color);
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--gradient-primary);
    color: white;
}

.tab-content {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.tab-panel {
    display: none;
    padding: 40px;
}

.tab-panel.active {
    display: block;
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

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

.solution-text p {
    color: var(--gray-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-text ul {
    list-style: none;
}

.solution-text li {
    padding: 8px 0;
    color: var(--gray-color);
    position: relative;
    padding-left: 20px;
}

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

.solution-features,
.solution-benefits {
    margin-bottom: 20px;
}

.solution-features h4,
.solution-benefits h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.solution-benefits p {
    background: rgba(0, 102, 204, 0.1);
    padding: 10px 15px;
    border-radius: 5px;
    color: var(--dark-color);
    font-weight: 500;
    border-left: 3px solid var(--primary-color);
}

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

.tech-visualization {
    width: 300px;
    height: 200px;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.finance-viz {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background: url(../images/main/003.png) center / cover;
}

.healthcare-viz {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    background: url(../images/main/004.png) center / cover;
}

.education-viz {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    background: url(../images/main/002.png) center / cover;
}

.retail-viz {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    background: url(../images/main/001.jpg) center / cover;
}

.tech-visualization::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    animation: techFloat 4s ease-in-out infinite;
}

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

/* 新闻动态 */
.news {
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.news-image {
    height: 200px;
    background: var(--gradient-primary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.news-category {
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.news-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.news-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
    line-height: 1.4;
}

.news-content p {
    color: var(--gray-color);
    margin-bottom: 15px;
    line-height: 1.6;
    flex-grow: 1;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-top: auto;
}

.news-more {
    text-align: center;
    margin-top: 40px;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* 合作伙伴 */
.partners {
    background: white;
    padding: 80px 0;
}

.partners .section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 50px;
    text-align: center;
}

.partners .section-title sup {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.partners-logos-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.partner-logo-item {
    background: white;
    /* border: 1px solid #e0e0e0; */
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    aspect-ratio: 2/1;
    display: flex;
    align-items: center;
    justify-content: center;
    /* padding: 15px; */
}

.partner-logo-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-light);
    border-color: var(--primary-color);
}

.partner-logo-item img {
    width: 102%;
    height: 102%;
    /* object-fit: contain;
    transition: var(--transition); */
}

.partner-logo-item:hover img {
    transform: scale(1.02);
}

.partners-contact {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    padding: 40px;
    margin-top: 40px;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-info-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-light);
}

.contact-info-item .contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
}

.contact-info-item .contact-icon i {
    font-size: 1.2rem;
    color: white;
}

.contact-info-item .contact-details h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--dark-color);
    font-weight: 600;
}

.phone-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.service-time {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.online-service {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.contact-note {
    font-size: 0.9rem;
    color: var(--gray-color);
    font-style: italic;
}

/* 联系我们 */
.contact {
    background: var(--light-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.2rem;
    color: white;
}

.contact-details h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.contact-details p {
    color: var(--gray-color);
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

.form-group select {
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.btn-full {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-image {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-logo h3 {
    margin-bottom: 0;
}

.footer-section p {
    color: var(--silver-color);
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--silver-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
}

.footer-section ul li i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    color: var(--silver-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: linear-gradient(135deg, var(--neo-bg-from) 0%, var(--neo-bg-to) 100%);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-medium);
        padding: 20px 0;
        border-top: 1px solid rgba(0, 255, 255, 0.2);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu .nav-link {
        color: var(--neo-silver);
        padding: 15px 0;
        display: block;
        transition: all 0.3s ease;
    }
    
    .nav-menu .nav-link:hover {
        color: var(--neo-cyan);
        background: rgba(0, 255, 255, 0.1);
        transform: translateX(5px);
    }
    
    /* 移动端菜单选中状态 */
    .nav-menu .nav-link.active {
        color: var(--neo-cyan);
        background: rgba(0, 255, 255, 0.15);
        font-weight: 600;
        transform: translateX(5px);
        border-left: 3px solid var(--neo-cyan);
        box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
    
    .solution-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-contact {
        padding: 30px 20px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .partners-logos-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}