/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
    min-height: 100vh;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 255, 255, 0.2);
}

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

.nav-logo h1 {
    color: #00ffff;
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.nav-logo span {
    color: #888;
    font-size: 0.9rem;
    display: block;
}

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

.nav-menu a {
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #00ffff;
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00ffff, #0080ff);
    transition: width 0.3s ease;
}

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

/* 主要内容区域 */
main {
    margin-top: 80px;
}

/* 首页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
    gap: 4rem;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 255, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(0, 128, 255, 0.12) 0%, transparent 55%),
        radial-gradient(circle at 40% 80%, rgba(255, 0, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 60% 30%, rgba(0, 255, 128, 0.06) 0%, transparent 45%);
    animation: backgroundShift 15s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(0, 255, 255, 0.03) 50%, transparent 70%),
        linear-gradient(-45deg, transparent 30%, rgba(0, 128, 255, 0.02) 50%, transparent 70%);
    animation: gradientShift 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes backgroundShift {
    0%, 100% { 
        transform: translateX(0) translateY(0) scale(1);
        opacity: 1;
    }
    25% { 
        transform: translateX(-15px) translateY(-10px) scale(1.02);
        opacity: 0.9;
    }
    50% { 
        transform: translateX(10px) translateY(15px) scale(0.98);
        opacity: 1.1;
    }
    75% { 
        transform: translateX(15px) translateY(-5px) scale(1.01);
        opacity: 0.95;
    }
}

@keyframes gradientShift {
    0%, 100% { transform: rotate(0deg) scale(1); }
    25% { transform: rotate(1deg) scale(1.01); }
    50% { transform: rotate(-1deg) scale(0.99); }
    75% { transform: rotate(0.5deg) scale(1.005); }
}

.hero-content {
    flex: 0 0 auto;
    max-width: 600px;
    min-width: 500px;
    z-index: 3;
    position: relative;
    padding: 0;
}

.hero-content::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, 
        rgba(0, 255, 255, 0.05) 0%, 
        transparent 30%, 
        rgba(0, 128, 255, 0.03) 70%, 
        transparent 100%);
    border-radius: 20px;
    z-index: -1;
    animation: contentGlow 8s ease-in-out infinite;
}

@keyframes contentGlow {
    0%, 100% { 
        opacity: 0.6;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.02);
    }
}

.hero-title {
    font-size: 3.8rem;
    font-weight: bold;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 
        0 0 20px rgba(0, 255, 255, 0.4),
        0 0 40px rgba(0, 255, 255, 0.2),
        0 0 60px rgba(0, 255, 255, 0.1);
    animation: fadeInUp 1s ease-out, titleGlow 3s ease-in-out infinite;
    background: linear-gradient(135deg, #fff 0%, #00ffff 50%, #fff 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes titleGlow {
    0%, 100% { 
        background-position: 0% 50%;
        text-shadow: 
            0 0 20px rgba(0, 255, 255, 0.4),
            0 0 40px rgba(0, 255, 255, 0.2);
    }
    50% { 
        background-position: 100% 50%;
        text-shadow: 
            0 0 30px rgba(0, 255, 255, 0.6),
            0 0 60px rgba(0, 255, 255, 0.3),
            0 0 90px rgba(0, 255, 255, 0.1);
    }
}

.hero-subtitle {
    font-size: 1.6rem;
    color: #00ffff;
    margin-bottom: 1.5rem;
    text-shadow: 
        0 0 10px rgba(0, 255, 255, 0.6),
        0 0 20px rgba(0, 255, 255, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both, subtitlePulse 4s ease-in-out infinite;
    position: relative;
}

.hero-subtitle::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00ffff, transparent);
    animation: underlineGlow 2s ease-in-out infinite;
}

@keyframes subtitlePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes underlineGlow {
    0%, 100% { opacity: 0.5; transform: scaleX(0.8); }
    50% { opacity: 1; transform: scaleX(1); }
}

.hero-description {
    font-size: 1.2rem;
    color: #ccc;
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.4s both;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
    position: relative;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease-out 0.6s both;
    position: relative;
}

.hero-buttons::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50px;
    z-index: -1;
    animation: buttonAreaGlow 6s ease-in-out infinite;
}

@keyframes buttonAreaGlow {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.1); }
}

.btn-primary, .btn-secondary {
    padding: 18px 35px;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.4s ease;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(45deg, #00ffff, #0080ff, #00ffff);
    background-size: 200% 100%;
    color: #000;
    box-shadow: 
        0 5px 15px rgba(0, 255, 255, 0.4),
        0 0 20px rgba(0, 255, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    animation: primaryButtonGlow 3s ease-in-out infinite;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

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

@keyframes primaryButtonGlow {
    0%, 100% { 
        background-position: 0% 50%;
        box-shadow: 
            0 5px 15px rgba(0, 255, 255, 0.4),
            0 0 20px rgba(0, 255, 255, 0.2);
    }
    50% { 
        background-position: 100% 50%;
        box-shadow: 
            0 8px 25px rgba(0, 255, 255, 0.6),
            0 0 30px rgba(0, 255, 255, 0.4);
    }
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 
        0 12px 35px rgba(0, 255, 255, 0.6),
        0 0 40px rgba(0, 255, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #00ffff;
    border: 2px solid #00ffff;
    box-shadow: 
        0 0 20px rgba(0, 255, 255, 0.3),
        inset 0 0 20px rgba(0, 255, 255, 0.1);
    position: relative;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, #00ffff, #0080ff);
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: 48px;
    z-index: -1;
}

.btn-secondary:hover {
    color: #000;
    transform: translateY(-5px) scale(1.05);
    border-color: #00ffff;
    box-shadow: 
        0 12px 35px rgba(0, 255, 255, 0.5),
        0 0 40px rgba(0, 255, 255, 0.3);
}

.btn-secondary:hover::before {
    opacity: 1;
}

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

/* 雷达动画 */
.hero-visual {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.location-animation {
    position: relative;
    width: 350px;
    height: 350px;
}

.location-animation::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: backgroundRadar 8s ease-in-out infinite;
}

@keyframes backgroundRadar {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.1); }
}

.radar-circle {
    position: absolute;
    border: 2px solid rgba(0, 255, 255, 0.4);
    border-radius: 50%;
    animation: radarPulse 4s ease-out infinite;
    box-shadow: 
        0 0 20px rgba(0, 255, 255, 0.3),
        inset 0 0 20px rgba(0, 255, 255, 0.1);
}

.radar-circle:nth-child(1) {
    width: 120px;
    height: 120px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 0s;
    border-width: 3px;
}

.radar-circle:nth-child(2) {
    width: 220px;
    height: 220px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 1.3s;
    border-width: 2px;
}

.radar-circle:nth-child(3) {
    width: 320px;
    height: 320px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 2.6s;
    border-width: 1px;
}

.radar-circle:nth-child(4) {
    width: 80px;
    height: 80px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 3.9s;
    border-width: 2px;
    border-color: rgba(0, 128, 255, 0.5);
}

@keyframes radarPulse {
    0% {
        transform: translate(-50%, -50%) scale(0.3);
        opacity: 1;
        border-color: rgba(0, 255, 255, 0.8);
    }
    50% {
        transform: translate(-50%, -50%) scale(0.7);
        opacity: 0.6;
        border-color: rgba(0, 255, 255, 0.4);
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
        border-color: rgba(0, 255, 255, 0.1);
    }
}

.location-pin {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background: radial-gradient(circle, #00ffff 0%, #0080ff 70%);
    border-radius: 50%;
    box-shadow: 
        0 0 30px rgba(0, 255, 255, 0.8),
        0 0 60px rgba(0, 255, 255, 0.4),
        inset 0 0 10px rgba(255, 255, 255, 0.3);
    animation: pinPulse 2.5s ease-in-out infinite;
    z-index: 10;
}

.location-pin::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
    animation: innerPinGlow 1.5s ease-in-out infinite;
}

@keyframes pinPulse {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 
            0 0 30px rgba(0, 255, 255, 0.8),
            0 0 60px rgba(0, 255, 255, 0.4);
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.3);
        box-shadow: 
            0 0 40px rgba(0, 255, 255, 1),
            0 0 80px rgba(0, 255, 255, 0.6),
            0 0 120px rgba(0, 255, 255, 0.3);
    }
}

@keyframes innerPinGlow {
    0%, 100% { opacity: 0.8; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

/* 通用样式 */
.section-title {
    font-size: 2.5rem;
    color: #fff;
    text-align: center;
    margin-bottom: 3rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #00ffff, #0080ff);
    border-radius: 2px;
}

/* 服务特色 */
.services {
    padding: 5rem 0;
    background: rgba(0, 0, 0, 0.3);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

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

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 255, 255, 0.5);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.2);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.5));
}

.service-card h3 {
    color: #00ffff;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

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

/* 功能特点 */
.features {
    padding: 5rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 2rem;
    border-left: 4px solid #00ffff;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.08);
}

.feature-number {
    font-size: 2rem;
    font-weight: bold;
    color: #00ffff;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.feature-item h3 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.feature-item p {
    color: #ccc;
    line-height: 1.6;
}

/* 使用步骤 */
.steps {
    padding: 5rem 0;
    background: rgba(0, 0, 0, 0.3);
}

.steps-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.step {
    text-align: center;
    max-width: 300px;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(45deg, #00ffff, #0080ff);
    color: #000;
    font-size: 2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 5px 15px rgba(0, 255, 255, 0.3);
}

.step h3 {
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.step p {
    color: #ccc;
    line-height: 1.6;
}

/* 关键词优化模块 */
.keywords-section {
    padding: 5rem 0;
}

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

.keyword-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.keyword-card:hover {
    border-color: rgba(0, 255, 255, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.1);
}

.keyword-card h4 {
    color: #00ffff;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
}

.keyword-card p {
    color: #ccc;
    line-height: 1.6;
}

/* 关于我们 */
.about {
    padding: 5rem 0;
    background: rgba(0, 0, 0, 0.3);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    color: #ccc;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* 页脚 */
.footer {
    background: rgba(0, 0, 0, 0.8);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(0, 255, 255, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: #00ffff;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
}

.footer-section p,
.footer-section li {
    color: #ccc;
    line-height: 1.6;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    position: relative;
}

.footer-section li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #00ffff;
    font-size: 0.8rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #888;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero {
        padding: 1rem 0;
    }
    
    .hero-container {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 2.8rem;
        background: #fff;
        -webkit-background-clip: text;
        -webkit-text-fill-color: #fff;
        background-clip: text;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 320px;
        padding: 16px 30px;
        font-size: 1.1rem;
    }
    
    .location-animation {
        width: 250px;
        height: 250px;
        margin-top: 2rem;
    }
    
    .location-animation::before {
        width: 280px;
        height: 280px;
    }
    
    .radar-circle:nth-child(1) {
        width: 80px;
        height: 80px;
    }
    
    .radar-circle:nth-child(2) {
        width: 150px;
        height: 150px;
    }
    
    .radar-circle:nth-child(3) {
        width: 220px;
        height: 220px;
    }
    
    .radar-circle:nth-child(4) {
        width: 60px;
        height: 60px;
    }
    
    .services-grid,
    .features-grid,
    .keywords-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content {
        min-width: auto;
        max-width: 100%;
        padding: 0;
    }
    
    .hero-title {
        font-size: 2.2rem;
        background: #fff;
        -webkit-background-clip: text;
        -webkit-text-fill-color: #fff;
        background-clip: text;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .location-animation {
        width: 200px;
        height: 200px;
    }
    
    .location-animation::before {
        width: 220px;
        height: 220px;
    }
    
    .service-card,
    .feature-item,
    .keyword-card {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}