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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

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

.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: #0066CC;
    color: #fff;
}

.btn-primary:hover {
    background-color: #0055AA;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: #0066CC;
    border: 2px solid #0066CC;
}

.btn-outline:hover {
    background-color: #0066CC;
    color: #fff;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: #0066CC;
}

.navbar-brand i {
    margin-right: 8px;
    font-size: 28px;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.navbar-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-menu a:hover {
    color: #0066CC;
}

.navbar-actions {
    display: flex;
    gap: 15px;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.navbar-toggle span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 4px 0;
    transition: all 0.3s ease;
}

.hero {
    padding: 100px 0 65px;
    background: linear-gradient(135deg, #0066CC 0%, #0099FF 50%, #00CCFF 100%);
    color: #fff;
    overflow: hidden;
}

.hero-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 80px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-carousel {
    flex: 0.7;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.carousel-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
    color: #fff;
}

.text-carousel {
    min-height: 80px;
    position: relative;
}

.text-item {
    position: absolute;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
}

    .text-item.active {
        opacity: 1;
        transform: translateY(0);
    }

.hero-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 10px;
    animation: fadeInUp 0.8s ease;
}

.hero-content h2 {
    font-size: 32px;
    font-weight: 300;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-content p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 30px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-stats {
    display: flex;
    gap: 60px;
    animation: fadeInUp 0.8s ease 0.8s both;
}

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

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-image {
    flex: 1;
    animation: fadeInRight 1s ease 0.3s both;
}

.hero-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.feature-section,
.advantage-card,
.solution-card {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 60px;
}

.advantages {
    padding: 80px 0;
    background-color: #f8fafc;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-card {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    border-color: #0066CC;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0066CC, #0099FF);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 32px;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.advantage-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.features {
    padding: 80px 0;
}

.features-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    border: 2px solid #e2e8f0;
    background-color: #fff;
    color: #666;
    font-size: 16px;
    font-weight: 500;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: #0066CC;
    color: #0066CC;
}

.tab-btn.active {
    background-color: #0066CC;
    border-color: #0066CC;
    color: #fff;
}

.features-carousel {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.carousel-inner {
    position: relative;
}

.carousel-item {
    display: none;
    position: relative;
}

.carousel-item.active {
    display: block;
}

.carousel-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    position: relative;
    overflow: hidden;
}

.carousel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 2.0), transparent);
    padding: 40px;
    color: #ffffff;
}

.carousel-content h4 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 15px;
}

.carousel-content p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 20px;
    max-width: 600px;
}

.carousel-content .card-link {
    color: #fff;
    margin: 0;
    font-size: 16px;
    background-color: #0066CC;
    padding: 12px 24px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.carousel-content .card-link:hover {
    background-color: #0055AA;
    padding-left: 24px;
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    right: 40px;
    display: flex;
    gap: 10px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    width: 30px;
    border-radius: 6px;
    background-color: #0066CC;
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.3);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control:hover {
    background-color: rgba(0, 0, 0, 0.6);
}

.carousel-control.prev {
    left: 20px;
}

.carousel-control.next {
    right: 20px;
}

.card-link {
    display: inline-flex;
    align-items: center;
    color: #0066CC;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.card-link:hover {
    padding-left: 5px;
}

.solutions {
    padding: 80px 0;
    background-color: #f8fafc;
}

.pricing-table {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    margin-top: 30px;
}

.pricing-table table {
    width: 100%;
    border-collapse: collapse;
}

.pricing-table th {
    background: linear-gradient(135deg, #0066CC, #0080DD);
    color: #fff;
    padding: 20px 30px;
    font-weight: 600;
    font-size: 16px;
    text-align: left;
    white-space: nowrap;
}

.pricing-table th:first-child {
    width: 8%;
    text-align: center;
}

.pricing-table th:nth-child(2) {
    width: 22%;
    text-align: center;
}

.pricing-table th:nth-child(3) {
    width: 70%;
    text-align: center;
}

.pricing-table td {
    padding: 20px 30px;
    border-bottom: 1px solid #f0f4f8;
    vertical-align: top;
}

.pricing-table tbody tr:last-child td {
    border-bottom: none;
}

.pricing-table tbody tr:hover {
    background-color: #f8fbff;
}

.pricing-table .serial {
    text-align: center;
    font-weight: 700;
    color: #0066CC;
    font-size: 18px;
    background-color: #e8f1fc;
}

.pricing-table .category {
    font-weight: 600;
    color: #1a202c;
    font-size: 15px;
    background-color: #f8fafc;
    text-align: center;
}

.pricing-table .feature-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pricing-table .feature-label {
    font-weight: 600;
    color: #0066CC;
    font-size: 15px;
}

.pricing-table .feature-desc {
    color: #4a5568;
    font-size: 14px;
    line-height: 1.6;
}

.pricing-table .highlight {
    color: #e53e3e;
    font-weight: 700;
    font-size: 16px;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.solution-card {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    border-color: #0066CC;
}

.solution-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #0066CC, #0099FF);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
}

.solution-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.solution-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    color: #0066CC;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.solution-link:hover {
    padding-left: 10px;
}

.trial {
    padding: 80px 0;
    background: linear-gradient(135deg, #0066CC 0%, #0099FF 100%);
    text-align: center;
    color: #fff;
}

.trial h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.trial p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.trial-form {
    display: flex;
    justify-content: center;
    gap: 15px;
    max-width: 1100px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.trial-form input {
    flex: 1;
    min-width: 200px;
    padding: 14px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
    transition: box-shadow 0.3s ease;
}

.trial-form input:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.trial-form input::placeholder {
    color: #999;
}

.trial-note {
    margin-top: 20px;
    font-size: 14px;
    opacity: 0.8;
}

.footer {
    background-color: #1a1a2e;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-brand i {
    margin-right: 8px;
}

.footer-section p {
    font-size: 14px;
    color: #999;
    line-height: 1.8;
    margin-bottom: 20px;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: #0066CC;
    transform: translateY(-3px);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul a {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: #0099FF;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.contact-info i {
    color: #0099FF;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    font-size: 14px;
    color: #666;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #0099FF;
}

@media (max-width: 1024px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-section {
        flex-direction: column;
        text-align: center;
    }
    
    .feature-section.reverse {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .navbar-menu,
    .navbar-actions {
        display: none;
    }
    
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: #fff;
        padding: 20px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    
    .hero-content h1 {
        font-size: 40px;
    }
    
    .hero-content h2 {
        font-size: 24px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
    }
    
    .trial-form {
        flex-direction: column;
    }
    
    .trial-form input {
        width: 100%;
    }
}