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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f4b 50%, #0d1229 100%);
    color: #e8eaff;
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.header {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    background: linear-gradient(90deg, #00d4ff, #7b2cbf);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo span {
    color: #00d4ff;
    -webkit-text-fill-color: #00d4ff;
}

.nav ul {
    display: flex;
    gap: 40px;
}

.nav a {
    color: #b8c5ff;
    font-size: 16px;
    transition: color 0.3s;
    position: relative;
}

.nav a:hover {
    color: #00d4ff;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, #7b2cbf);
    transition: width 0.3s;
}

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

.header-btns {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #0a0e27;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    border: 2px solid #00d4ff;
    color: #00d4ff;
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 50px;
    font-size: 18px;
}

.main {
    padding-top: 80px;
}

.hero {
    padding: 120px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.hero h1 {
    font-size: 52px;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #ffffff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 20px;
    color: #8b9bff;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #ffffff;
}

.section-title p {
    color: #8b9bff;
    font-size: 16px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 16px;
    padding: 40px 30px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 44, 191, 0.2));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 32px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    color: #8b9bff;
    line-height: 1.8;
}

.download-section {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(123, 44, 191, 0.1));
    border-radius: 24px;
    padding: 80px 60px;
    text-align: center;
    margin: 60px 0;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.download-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.download-section p {
    color: #8b9bff;
    margin-bottom: 40px;
    font-size: 18px;
}

.download-options {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.download-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    padding: 40px;
    min-width: 280px;
    transition: all 0.3s;
}

.download-card:hover {
    transform: scale(1.05);
    border-color: #00d4ff;
}

.download-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.download-card .version {
    color: #8b9bff;
    margin-bottom: 20px;
}

.breadcrumb {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.breadcrumb ul {
    display: flex;
    gap: 10px;
    align-items: center;
}

.breadcrumb li {
    color: #8b9bff;
}

.breadcrumb a {
    color: #00d4ff;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.content-section {
    padding: 60px 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
}

.sidebar {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    height: fit-content;
}

.sidebar h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #00d4ff;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.sidebar ul li {
    margin-bottom: 15px;
}

.sidebar a {
    color: #b8c5ff;
    display: block;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.3s;
}

.sidebar a:hover,
.sidebar a.active {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
}

.main-content {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid rgba(0, 212, 255, 0.15);
}

.main-content h1 {
    font-size: 32px;
    margin-bottom: 30px;
    color: #ffffff;
}

.main-content h2 {
    font-size: 24px;
    margin: 40px 0 20px;
    color: #00d4ff;
}

.main-content p {
    margin-bottom: 20px;
    color: #b8c5ff;
    line-height: 1.9;
}

.main-content ul {
    margin: 20px 0;
    padding-left: 20px;
}

.main-content li {
    margin-bottom: 12px;
    color: #b8c5ff;
    position: relative;
    padding-left: 20px;
}

.main-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: #00d4ff;
    border-radius: 50%;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.news-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s;
    display: flex;
    gap: 25px;
}

.news-item:hover {
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateX(5px);
}

.news-date {
    min-width: 80px;
    text-align: center;
}

.news-date .day {
    font-size: 36px;
    font-weight: bold;
    color: #00d4ff;
    display: block;
}

.news-date .month {
    font-size: 14px;
    color: #8b9bff;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #ffffff;
}

.news-content h3 a:hover {
    color: #00d4ff;
}

.news-content p {
    color: #8b9bff;
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: #6b7bb0;
}

.news-detail-header {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.news-detail-header h1 {
    font-size: 28px;
    margin-bottom: 20px;
}

.news-detail-meta {
    display: flex;
    gap: 30px;
    color: #8b9bff;
    font-size: 14px;
}

.news-detail-content {
    line-height: 2;
}

.news-detail-content p {
    margin-bottom: 25px;
    color: #b8c5ff;
}

.contact-form {
    max-width: 600px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #b8c5ff;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    color: #ffffff;
    font-size: 16px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.contact-info-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
}

.contact-info-item h3 {
    color: #00d4ff;
    margin-bottom: 15px;
}

.contact-info-item p {
    color: #b8c5ff;
}

.footer {
    background: rgba(0, 0, 0, 0.5);
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    padding: 60px 0 30px;
    margin-top: 80px;
}

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

.footer-section h3 {
    color: #00d4ff;
    margin-bottom: 20px;
    font-size: 18px;
}

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

.footer-section a {
    color: #8b9bff;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #00d4ff;
}

.footer-section p {
    color: #8b9bff;
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    color: #6b7bb0;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #00d4ff;
    font-size: 24px;
    cursor: pointer;
}

.cta-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cta-float .btn {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: pulse 2s infinite;
}

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

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(10, 14, 39, 0.98);
        transition: left 0.3s;
    }

    .nav.active {
        left: 0;
    }

    .nav ul {
        flex-direction: column;
        padding: 40px;
        gap: 30px;
    }

    .header-btns {
        display: none;
    }

    .hero {
        padding: 80px 20px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .content-wrapper {
        grid-template-columns: 1fr;
    }

    .sidebar {
        order: 2;
    }

    .download-section {
        padding: 40px 20px;
    }

    .news-item {
        flex-direction: column;
    }

    .news-date {
        display: flex;
        gap: 10px;
        align-items: baseline;
    }

    .cta-float {
        left: 20px;
        right: 20px;
        bottom: 20px;
        flex-direction: row;
        justify-content: center;
    }

    .section {
        padding: 50px 0;
    }

    .section-title h2 {
        font-size: 28px;
    }
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.pagination a,
.pagination span {
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    color: #b8c5ff;
    transition: all 0.3s;
}

.pagination a:hover,
.pagination .current {
    background: rgba(0, 212, 255, 0.2);
    border-color: #00d4ff;
    color: #00d4ff;
}

.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: #00d4ff;
    display: block;
}

.stat-label {
    color: #8b9bff;
    margin-top: 10px;
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
    margin-top: 40px;
    opacity: 0.6;
}

.partner-logo {
    font-size: 24px;
    color: #8b9bff;
    font-weight: bold;
}