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

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 */
.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;
}

.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-color: #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-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 首页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: white;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

/* 科技背景 */
.tech-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.grid-overlay {
    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: 50px 50px;
    animation: grid-move 20s linear infinite;
}

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

.element {
    position: absolute;
    background: linear-gradient(45deg, #00ffff, #0080ff);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-element 8s ease-in-out infinite;
}

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

.element-2 {
    width: 15px;
    height: 15px;
    top: 60%;
    left: 80%;
    animation-delay: 2s;
}

.element-3 {
    width: 25px;
    height: 25px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

.element-4 {
    width: 10px;
    height: 10px;
    top: 30%;
    left: 70%;
    animation-delay: 6s;
}

.element-5 {
    width: 18px;
    height: 18px;
    top: 70%;
    left: 60%;
    animation-delay: 1s;
}

.cyber-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.line {
    position: absolute;
    background: linear-gradient(90deg, transparent, #00ffff, transparent);
    height: 1px;
    opacity: 0.5;
    animation: line-scan 4s linear infinite;
}

.line-1 {
    top: 30%;
    width: 100%;
    animation-delay: 0s;
}

.line-2 {
    top: 60%;
    width: 100%;
    animation-delay: 2s;
}

.line-3 {
    top: 90%;
    width: 100%;
    animation-delay: 4s;
}

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

.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(0, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: 50px;
    padding: 12px 24px;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    animation: tech-pulse 2s ease-in-out infinite;
}

.badge-icon {
    width: 20px;
    height: 20px;
    background: linear-gradient(45deg, #00ffff, #0080ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: #000;
    animation: icon-rotate 3s linear infinite;
}

.hero-title {
    margin-bottom: 2rem;
    position: relative;
}

.title-main {
    display: block;
    font-size: 4.5rem;
    font-weight: 900;
    background: linear-gradient(45deg, #00ffff, #0080ff, #8000ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
}

.title-glow {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 4.5rem;
    font-weight: 900;
    color: #00ffff;
    filter: blur(20px);
    opacity: 0.5;
    z-index: 1;
    animation: glow-pulse 3s ease-in-out infinite;
}

.title-sub {
    display: block;
    font-size: 1.5rem;
    color: #b0b0b0;
    font-weight: 400;
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    color: #cccccc;
    line-height: 1.8;
    max-width: 500px;
    position: relative;
}

.hero-description::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, #00ffff, transparent);
}

.tech-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tech-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(0, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

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

.tech-feature:hover {
    background: rgba(0, 255, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.2);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #00ffff, #0080ff);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #000;
    flex-shrink: 0;
}

.feature-text {
    display: flex;
    flex-direction: column;
}

.feature-title {
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
}

.feature-desc {
    font-size: 0.8rem;
    color: #b0b0b0;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #00ffff, #0080ff);
    color: #000;
    box-shadow: 0 4px 15px rgba(0, 255, 255, 0.4);
    position: relative;
}

.btn-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #00ffff, #0080ff, #8000ff);
    border-radius: 50px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover .btn-glow {
    opacity: 0.3;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 255, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #00ffff;
    border: 2px solid rgba(0, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: #00ffff;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 255, 0.3);
}

.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.tech-sphere {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sphere-core {
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, #00ffff, #0080ff);
    border-radius: 50%;
    position: relative;
    animation: core-pulse 2s ease-in-out infinite;
}

.sphere-ring {
    position: absolute;
    border: 2px solid rgba(0, 255, 255, 0.3);
    border-radius: 50%;
    animation: ring-rotate 10s linear infinite;
}

.ring-1 {
    width: 150px;
    height: 150px;
    animation-duration: 8s;
}

.ring-2 {
    width: 200px;
    height: 200px;
    animation-duration: 12s;
    animation-direction: reverse;
}

.ring-3 {
    width: 250px;
    height: 250px;
    animation-duration: 15s;
}

.data-points {
    position: absolute;
    width: 100%;
    height: 100%;
}

.point {
    position: absolute;
    width: 6px;
    height: 6px;
    background: #00ffff;
    border-radius: 50%;
    animation: point-blink 2s ease-in-out infinite;
}

.point-1 { top: 10%; left: 50%; animation-delay: 0s; }
.point-2 { top: 50%; right: 10%; animation-delay: 0.3s; }
.point-3 { bottom: 10%; left: 50%; animation-delay: 0.6s; }
.point-4 { top: 50%; left: 10%; animation-delay: 0.9s; }
.point-5 { top: 20%; right: 20%; animation-delay: 1.2s; }
.point-6 { bottom: 20%; left: 20%; animation-delay: 1.5s; }

.tech-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    background: rgba(0, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 15px;
    padding: 1.5rem 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #00ffff, transparent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #00ffff;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.stat-label {
    font-size: 0.9rem;
    color: #b0b0b0;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-line {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00ffff, transparent);
    animation: line-glow 2s ease-in-out infinite;
}

/* 动画定义 */
@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

@keyframes float-element {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.3; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 0.6; }
}

@keyframes line-scan {
    0% { transform: translateX(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(100%); opacity: 0; }
}

@keyframes tech-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

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

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; filter: blur(20px); }
    50% { opacity: 0.8; filter: blur(15px); }
}

@keyframes core-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(0, 255, 255, 0.5); }
    50% { transform: scale(1.1); box-shadow: 0 0 40px rgba(0, 255, 255, 0.8); }
}

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

@keyframes point-blink {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes line-glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    padding: 5rem 0;
    background: #f8fafc;
}

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

.about-text h3 {
    font-size: 1.8rem;
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #4b5563;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.about-text li {
    padding: 0.75rem 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    color: #374151;
    font-weight: 500;
    position: relative;
    padding-left: 2rem;
}

.about-text li::before {
    content: '✓';
    position: absolute;
    left: 0.75rem;
    color: #2563eb;
    font-weight: bold;
}

.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, 0.1);
    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;
}

/* 服务项目 */
.services {
    padding: 5rem 0;
    background: white;
}

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

.service-card {
    padding: 2.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #2563eb;
}

.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;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    color: #1f2937;
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* 联系我们 */
.contact {
    padding: 5rem 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: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-details h4 {
    color: #1f2937;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-details p {
    color: #6b7280;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    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 */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

.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: #f9fafb;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: #d1d5db;
    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;
    color: #9ca3af;
}

.icp-info {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.icp-info a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.icp-info a:hover {
    color: #d1d5db;
}

.police-beian {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.police-beian img {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

/* 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;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .title-main {
        font-size: 3rem;
    }

    .title-glow {
        font-size: 3rem;
    }

    .tech-features {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-cards {
        max-width: 300px;
    }

    .hero-stats {
        gap: 2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .hero-graphic {
        font-size: 2.5rem;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .title-main {
        font-size: 2.5rem;
    }

    .title-glow {
        font-size: 2.5rem;
    }

    .title-sub {
        font-size: 1.2rem;
    }

    .tech-features {
        gap: 1rem;
    }

    .tech-feature {
        padding: 0.75rem 1rem;
    }

    .feature-icon {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }

    .tech-sphere {
        width: 250px;
        height: 250px;
    }

    .sphere-core {
        width: 80px;
        height: 80px;
    }

    .ring-1 {
        width: 120px;
        height: 120px;
    }

    .ring-2 {
        width: 160px;
        height: 160px;
    }

    .ring-3 {
        width: 200px;
        height: 200px;
    }

    .tech-stats {
        gap: 1rem;
    }

    .stat-item {
        padding: 1rem 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .about-text ul {
        grid-template-columns: 1fr;
    }

    .icp-info {
        flex-direction: column;
        gap: 1rem;
    }

    .icp-info a {
        font-size: 0.8rem;
    }
}

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

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

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}