* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}
a {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.2em 0;
}
body {
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    font-size: 15px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #ffffff;
    color: #333;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background-color: #f8f9fa;
    padding: 0.5rem 0;
    border-bottom: 1px solid #eaeaea;
}

.top-bar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.contact-info {
    display: flex;
    gap: 1.5rem;
}

.contact-info span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info i {
    color: #0078d4;
}

.user-actions a {
    color: #0078d4;
    text-decoration: none;
    margin-left: 1.5rem;
}

.user-actions a:hover {
    text-decoration: underline;
}

.header-main {
    padding: 1.2rem 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #0078d4;
}

.logo span {
    color: #ff6b35;
}

.logo p {
    font-size: 0.85rem;
    color: #666;
}

nav {
    display: block;
}

.nav-desktop {
    display: flex;
}

.nav-desktop ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-desktop ul li {
    position: relative;
}

.nav-desktop ul li > a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.8rem 1rem;
    display: block;
    transition: all 0.3s;
    white-space: nowrap;
}

.nav-desktop ul li > a:hover {
    color: #0078d4;
    background-color: #f0f8ff;
}

.nav-desktop ul li > a.active {
    color: #0078d4;
    background-color: #f0f8ff;
}

.nav-desktop ul li > a.active:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: #0078d4;
    left: 0;
    bottom: 0;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #333;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.mobile-menu-overlay.active {
    display: block;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background-color: white;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    padding: 2rem 1.5rem;
    transition: right 0.3s ease;
    z-index: 1001;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.mobile-menu-header h3 {
    font-size: 1.3rem;
    color: #333;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #333;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu ul li {
    margin-bottom: 0;
}

.mobile-menu ul li a {
    display: block;
    padding: 1rem 0;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #f5f5f5;
    font-weight: 500;
}

.mobile-menu ul li a:hover {
    color: #0078d4;
}

.hero {
    background-color: #ffffff;
    color: #333;
    padding: 5rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    z-index: -1;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1.2rem;
    line-height: 1.2;
    color: #222;
}

.hero h1 span {
    color: #0078d4;
}

.hero .subtitle {
    font-size: 1.5rem;
    color: #0078d4;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    max-width: 850px;
    margin: 0 auto 2rem;
    color: #555;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    margin-top: 2rem;
}

.cta-button {
    display: inline-block;
    background-color: #0078d4;
    color: white;
    padding: 0.9rem 2.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.2);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background-color: #005a9e;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 120, 212, 0.3);
}

.cta-button.secondary {
    background-color: #f8f9fa;
    color: #333;
    border: 1px solid #e0e0e0;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
}

.cta-button.secondary:hover {
    background-color: #e9ecef;
    border-color: #0078d4;
    color: #0078d4;
}

.stats-section {
    padding: 3rem 0;
    background-color: #f8f9fa;
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0078d4;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #666;
}

.announcement {
    padding: 3rem 0;
    background-color: #ffffff;
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
}

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

.announcement-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.announcement-header h2 {
    font-size: 1.6rem;
    color: #222;
    display: flex;
    align-items: center;
}

.announcement-header h2 i {
    color: #ff6b35;
    margin-right: 0.7rem;
    font-size: 1.4rem;
}

.announcement-badge {
    background-color: #ff6b35;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.announcement-content {
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid #f0f0f0;
}

.announcement-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.announcement-item:last-child {
    border-bottom: none;
}

.announcement-date {
    display: inline-block;
    background: #f0f8ff;
    color: #0078d4;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.announcement-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #222;
}

.announcement-item p {
    color: #666;
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.announcement-item.important .announcement-date {
    background-color: #fff0e6;
    color: #ff6b35;
}

.announcement-item.important h3 {
    color: #ff6b35;
}

.services {
    padding: 5rem 0;
    background-color: #ffffff;
    border-top: 1px solid #f0f0f0;
}

.section-title {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-title h2 {
    font-size: 2.3rem;
    color: #222;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2:after {
    content: '';
    position: absolute;
    width: 70px;
    height: 3px;
    background: #0078d4;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    color: #666;
    max-width: 700px;
    margin: 2rem auto 0;
    font-size: 1.05rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    background: #fff;
    border-radius: 8px;
    padding: 2.2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #f0f0f0;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.service-icon {
    background: #f0f8ff;
    width: 65px;
    height: 65px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid #e6f2ff;
}

.service-icon i {
    font-size: 1.6rem;
    color: #0078d4;
}

.service-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: #222;
}

.service-card p {
    color: #666;
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    margin-top: 1.2rem;
}

.service-features li {
    padding: 0.4rem 0;
    color: #555;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.service-features li i {
    color: #0078d4;
    margin-right: 0.7rem;
    font-size: 0.85rem;
}

.pricing {
    padding: 5rem 0;
    background-color: #f8f9fa;
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.pricing-card {
    background: #fff;
    border-radius: 8px;
    padding: 2.5rem 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
    transition: transform 0.3s;
    border: 1px solid #f0f0f0;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.pricing-card.popular {
    border: 2px solid #0078d4;
    background-color: white;
    transform: scale(1.02);
}

.popular-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #0078d4;
    color: white;
    padding: 0.4rem 1.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #222;
}

.pricing-card .plan-subtitle {
    font-size: 0.9rem;
    color: #666;
    margin-top: -0.8rem;
    margin-bottom: 1.2rem;
    font-style: italic;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0078d4;
    margin-bottom: 1.5rem;
}

.price .original-price {
    font-size: 1.5rem;
    color: #999;
    text-decoration: line-through;
    margin-right: 0.8rem;
    font-weight: normal;
}

.price .discounted-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ff6b35;
}

.price .period {
    font-size: 1rem;
    color: #777;
    margin-left: 0.3rem;
}

.price .discount-badge {
    display: inline-block;
    background-color: #ff6b35;
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-left: 0.8rem;
    vertical-align: middle;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.6rem 0;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

.pricing-features li i {
    color: #0078d4;
    margin-right: 0.8rem;
    font-size: 0.9rem;
}

.pricing-features li.highlight {
    color: #ff6b35;
    font-weight: 600;
}

.technology {
    padding: 5rem 0;
    background-color: #ffffff;
    border-top: 1px solid #f0f0f0;
}

.technology-content {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.technology-content h3 {
    color: #0078d4;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.technology-content p {
    margin-bottom: 1.5rem;
    color: #555;
    line-height: 1.7;
}

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

.tech-step {
    text-align: center;
    padding: 1.5rem;
    border-radius: 8px;
    background: #f8f9fa;
    border: 1px solid #eaeaea;
}

.tech-step .step-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #0078d4;
    color: white;
    border-radius: 50%;
    line-height: 40px;
    font-weight: 700;
    margin-bottom: 1rem;
}

.tech-step h4 {
    margin-bottom: 0.8rem;
    color: #222;
}

.news {
    padding: 5rem 0;
    background-color: #ffffff;
    border-top: 1px solid #f0f0f0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.news-card {
    background: #fff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #f0f0f0;
    height: 100%;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.news-date {
    display: inline-block;
    background: #f0f8ff;
    color: #0078d4;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
}

.news-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #222;
    line-height: 1.4;
}

.news-card p {
    color: #666;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.news-link {
    color: #0078d4;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
}

.news-link i {
    margin-left: 0.5rem;
    transition: transform 0.3s;
}

.news-link:hover i {
    transform: translateX(5px);
}

.advantages {
    padding: 4rem 0;
    background-color: #f8f9fa;
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid #eaeaea;
    transition: all 0.3s;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #0078d4;
}

.advantage-icon {
    font-size: 2.5rem;
    color: #0078d4;
    margin-bottom: 1.2rem;
}

.advantage-item h4 {
    margin-bottom: 0.8rem;
    color: #222;
    font-size: 1.2rem;
}

.advantage-item p {
    color: #666;
    font-size: 0.95rem;
}

.compliance-section {
    padding: 4rem 0;
    background-color: #ffffff;
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
}

.compliance-content {
    max-width: 900px;
    margin: 0 auto;
    background: #f8f9fa;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.compliance-content h3 {
    color: #0078d4;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.compliance-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.compliance-content li {
    margin-bottom: 0.8rem;
    color: #555;
}

.compliance-notice {
    background: #f0f8ff;
    padding: 1.5rem;
    border-radius: 6px;
    margin: 2rem 0;
    border-left: 4px solid #0078d4;
}

footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 3.5rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo h3 {
    color: #3498db;
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
}

.footer-logo p {
    max-width: 300px;
    line-height: 1.7;
    font-size: 0.95rem;
    color: #bdc3c7;
}

.footer-links h4,
.footer-contact h4 {
    color: #ecf0f1;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

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

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.footer-links ul li a:hover {
    color: #3498db;
    padding-left: 5px;
}

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

.footer-contact ul li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    font-size: 0.95rem;
    color: #bdc3c7;
}

.footer-contact ul li i {
    color: #3498db;
    margin-right: 0.8rem;
    font-size: 0.9rem;
    min-width: 20px;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    font-size: 0.85rem;
    color: #95a5a6;
}

.copyright a {
    color: #3498db;
}

@media (max-width: 1100px) {
    .nav-desktop ul li > a {
        padding: 0.8rem 0.8rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.3rem;
    }
    
    .services-grid,
    .pricing-grid,
    .news-grid,
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .mobile-menu-btn {
        display: block;
    }
    
    .nav-desktop {
        display: none;
    }
    
    .compliance-content {
        padding: 2rem;
    }
    
    .technology-content {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .header-container {
        flex-direction: row;
        text-align: left;
    }
    
    .hero {
        padding: 3.5rem 0 3rem;
    }
    
    .hero h1 {
        font-size: 1.9rem;
    }
    
    .hero .subtitle {
        font-size: 1.2rem;
    }
    
    .hero p {
        font-size: 1.05rem;
        padding: 0 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .announcement-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .announcement-header h2 {
        font-size: 1.4rem;
    }
    
    .services-grid,
    .pricing-grid,
    .news-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .price {
        font-size: 2rem;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .price .original-price {
        font-size: 1.2rem;
        margin-right: 0;
        margin-bottom: 0.5rem;
    }
    
    .price .discounted-price {
        font-size: 2rem;
    }
    
    .price .discount-badge {
        margin-left: 0.5rem;
        margin-top: 0.5rem;
    }
    
    .pricing-card .plan-subtitle {
        font-size: 0.85rem;
    }
    
    .compliance-section {
        padding: 2rem 0;
    }
    
    .compliance-content {
        padding: 1.5rem;
    }
    
    .technology {
        padding: 2rem 0;
    }
    
    .technology-content {
        padding: 1.5rem;
    }
    
    .technology-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 1.7rem;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

#site-running-days {
    font-weight: 700;
    color: #3498db;
    padding: 0 4px;
    position: relative;
    transition: all 0.3s ease;
}

#site-running-days:hover {
    transform: scale(1.05);
}

@keyframes gentle-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.9; }
}

#site-running-days {
    animation: gentle-pulse 4s infinite ease-in-out;
}