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

body {
    font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #0a0a0a;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
    height: 70px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    color: #00d4ff;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    transition: width 0.3s ease;
}

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

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

.hero-bg {
    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"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23ffffff" stroke-width="0.1" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    animation: float 6s ease-in-out infinite;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
    padding-left: 80px;
    padding-right: 80px;
}

.hero-content {
    color: #fff;
    width: 100%;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #b0b0b0;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.feature-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 25px;
    color: #00d4ff;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

.cta-button {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #fff;
    border: none;
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.5);
}

/* 主横幅图片展示 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 450px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(0, 212, 255, 0.3));
}

/* 服务区域 */
.services {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    justify-items: center;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    width: 100%;
    max-width: 400px;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.service-icon {
    font-size: 3rem;
    color: #00d4ff;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #fff;
}

.service-card p {
    color: #b0b0b0;
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    text-align: left;
}

.service-features li {
    margin-bottom: 10px;
    color: #b0b0b0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-features i {
    color: #00d4ff;
}

/* 功能特色 */
.features {
    padding: 100px 0;
    background: #0a0a0a;
    color: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-item {
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.feature-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    color: #00d4ff;
    margin-bottom: 20px;
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #fff;
}

.feature-item p {
    color: #b0b0b0;
    line-height: 1.7;
}

/* 使用步骤 */
.steps {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: #fff;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.step-content h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #fff;
}

.step-content p {
    color: #b0b0b0;
}

.step-arrow {
    font-size: 2rem;
    color: #00d4ff;
    animation: pulse 2s infinite;
}

/* 定位表单 */
.tracking-form {
    padding: 100px 0;
    background: #0a0a0a;
    color: #fff;
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 50px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    backdrop-filter: blur(10px);
}

.form-container h3 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.form-subtitle {
    color: #b0b0b0;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.input-group {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.input-wrapper {
    flex: 1;
    position: relative;
    min-width: 250px;
}

.input-wrapper i {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #00d4ff;
    font-size: 1.2rem;
}

.input-wrapper input {
    width: 100%;
    padding: 18px 20px 18px 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.input-wrapper input::placeholder {
    color: #b0b0b0;
}

.track-button {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #fff;
    border: none;
    padding: 18px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
    white-space: nowrap;
}

.track-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.5);
}

.form-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.form-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #b0b0b0;
    font-size: 0.9rem;
}

.form-features i {
    color: #00d4ff;
}

/* 常见问题 */
.faq {
    padding: 100px 0;
    background: #0a0a0a;
    color: #fff;
}

.faq-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #b0b0b0;
    margin-bottom: 60px;
    line-height: 1.6;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.1);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    user-select: none;
}

.faq-question:hover {
    background: rgba(0, 212, 255, 0.05);
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    line-height: 1.5;
}

.faq-question h3 i {
    color: #00d4ff;
    font-size: 1rem;
    flex-shrink: 0;
}

.faq-question > i {
    color: #00d4ff;
    font-size: 1rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-question > i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    background: rgba(0, 212, 255, 0.02);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 30px 25px 30px;
}

.faq-answer p {
    color: #b0b0b0;
    line-height: 1.8;
    margin: 0;
    font-size: 1rem;
    text-align: justify;
}

/* FAQ响应式设计 */
@media (max-width: 768px) {
    .faq-question {
        padding: 20px 20px;
    }
    
    .faq-question h3 {
        font-size: 1rem;
        gap: 10px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 20px 20px;
    }
    
    .faq-answer p {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .faq-question {
        padding: 18px 15px;
    }
    
    .faq-question h3 {
        font-size: 0.95rem;
        gap: 8px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 15px 18px 15px;
    }
    
    .faq-answer p {
        font-size: 0.9rem;
        line-height: 1.7;
    }
}

/* 联系信息 */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.contact-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 212, 255, 0.5);
}

.contact-item i {
    font-size: 2.5rem;
    color: #00d4ff;
    margin-bottom: 20px;
}

.contact-item h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #fff;
}

.contact-item p {
    color: #b0b0b0;
    font-size: 1.1rem;
}

/* 页脚 */
.footer {
    background: #0a0a0a;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: #00d4ff;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section p,
.footer-section li {
    color: #b0b0b0;
    line-height: 1.8;
    margin-bottom: 10px;
}

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

.footer-section li {
    padding-left: 15px;
    position: relative;
}

.footer-section li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #00d4ff;
    font-size: 0.8rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    color: #b0b0b0;
}

/* 动画效果 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes radar {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        padding: 0 40px;
    }
    
    .nav-container {
        padding: 0 40px;
    }
    
    .hero .container {
        padding-left: 50px;
        padding-right: 50px;
        gap: 60px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 25px;
    }
    
    .nav-container {
        padding: 0 25px;
    }
    
    .navbar {
        height: 80px;
        padding: 20px 0;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
        text-align: center;
        gap: 40px;
        justify-items: center;
        padding-left: 30px;
        padding-right: 30px;
    }
    
    .hero-content {
        grid-row: 1;
        order: 1;
    }
    
    .hero-visual {
        grid-row: 2;
        order: 2;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image {
        width: 350px;
        max-width: 85%;
        margin-top: 20px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        flex-direction: column;
        gap: 30px;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .input-wrapper {
        min-width: auto;
    }
    
    .form-features {
        gap: 15px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 25px;
    }
    
    .nav-container {
        padding: 0 25px;
    }
    
    .navbar {
        height: 75px;
        padding: 18px 0;
    }
    
    .hero {
        padding-top: 95px;
    }
    
    .hero .container {
        padding-left: 25px;
        padding-right: 25px;
        gap: 30px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .service-card,
    .form-container {
        padding: 30px 20px;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .feature-tag {
        font-size: 0.8rem;
        padding: 10px 15px;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}