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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #0a0e1a 0%, #1a1f3a 50%, #0d1220 100%);
    color: #fff;
    min-height: 100vh;
    line-height: 1.6;
}

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

header {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    color: #b0b8c8;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 15px;
}

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

.cta-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    color: #0a0e1a;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

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

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

.btn-large {
    padding: 18px 50px;
    font-size: 18px;
    border-radius: 12px;
}

.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 18px;
    color: #b0b8c8;
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.download-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    min-width: 200px;
    transition: all 0.3s;
}

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

.download-card .icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.download-card h3 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 10px;
}

.download-card p {
    color: #8b92a8;
    font-size: 14px;
}

.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #00d4ff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 30px;
}

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

.feature-card p {
    color: #8b92a8;
    line-height: 1.8;
}

.stats {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.2);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item h4 {
    font-size: 42px;
    color: #00d4ff;
    margin-bottom: 10px;
}

.stat-item p {
    color: #8b92a8;
    font-size: 16px;
}

.steps-section {
    padding: 80px 0;
}

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

.step-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

.step-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-weight: bold;
    font-size: 18px;
}

.step-card h3 {
    font-size: 20px;
    color: #fff;
    margin: 15px 0;
}

.step-card p {
    color: #8b92a8;
    font-size: 14px;
    line-height: 1.8;
}

.news-section {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.2);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
    text-decoration: none;
}

.news-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(10px);
}

.news-content h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 8px;
}

.news-content p {
    color: #8b92a8;
    font-size: 14px;
}

.news-date {
    color: #00d4ff;
    font-size: 14px;
}

.breadcrumb {
    padding: 100px 0 30px;
    background: rgba(0, 0, 0, 0.3);
}

.breadcrumb-content {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #8b92a8;
    font-size: 14px;
}

.breadcrumb a {
    color: #b0b8c8;
    text-decoration: none;
}

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

.breadcrumb span {
    color: #00d4ff;
}

.cta-section {
    padding: 100px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #fff;
}

.cta-section p {
    color: #b0b8c8;
    font-size: 18px;
    margin-bottom: 40px;
}

.cta-buttons-large {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-buttons-large .btn {
    padding: 16px 40px;
    font-size: 16px;
}

footer {
    background: #050810;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: #00d4ff;
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-section p {
    color: #8b92a8;
    line-height: 1.8;
    font-size: 14px;
}

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

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

.footer-section a {
    color: #8b92a8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #5a6270;
    font-size: 14px;
}

.download-hero {
    padding: 140px 0 80px;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.download-hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-hero p {
    font-size: 18px;
    color: #b0b8c8;
    max-width: 700px;
    margin: 0 auto 50px;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.download-box {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(0, 212, 255, 0.2);
    border-radius: 24px;
    padding: 50px 40px;
    text-align: center;
    transition: all 0.3s;
}

.download-box:hover {
    border-color: rgba(0, 212, 255, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.download-box .platform-icon {
    font-size: 80px;
    margin-bottom: 25px;
}

.download-box h3 {
    font-size: 28px;
    color: #fff;
    margin-bottom: 15px;
}

.download-box p {
    color: #8b92a8;
    margin-bottom: 30px;
    line-height: 1.8;
}

.qr-section {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
}

.qr-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    display: inline-block;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 212, 255, 0.05));
    border: 2px dashed rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 80px;
}

.qr-box p {
    color: #b0b8c8;
    font-size: 16px;
}

.about-hero {
    padding: 80px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.about-hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-hero p {
    font-size: 18px;
    color: #b0b8c8;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.section {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 28px;
    color: #00d4ff;
    margin-bottom: 20px;
}

.about-text p {
    color: #b0b8c8;
    line-height: 2;
    margin-bottom: 20px;
    font-size: 16px;
}

.about-image {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 212, 255, 0.05));
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 60px;
    text-align: center;
}

.about-image .icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.timeline {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.2);
}

.timeline-list {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-year {
    min-width: 100px;
    text-align: right;
    color: #00d4ff;
    font-size: 20px;
    font-weight: bold;
}

.timeline-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    padding: 25px;
}

.timeline-content h4 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 18px;
}

.timeline-content p {
    color: #8b92a8;
    line-height: 1.8;
}

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

.value-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 40px 25px;
    text-align: center;
    transition: all 0.3s;
}

.value-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
}

.value-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

.value-card h4 {
    color: #fff;
    margin-bottom: 15px;
    font-size: 20px;
}

.value-card p {
    color: #8b92a8;
    font-size: 14px;
    line-height: 1.8;
}

.news-hero {
    padding: 80px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.news-hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.news-hero p {
    font-size: 18px;
    color: #b0b8c8;
    max-width: 700px;
    margin: 0 auto;
}

.news-categories {
    padding: 40px 0;
    background: rgba(0, 0, 0, 0.2);
}

.category-list {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.category-item {
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 30px;
    color: #b0b8c8;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.category-item:hover,
.category-item.active {
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    color: #0a0e1a;
    border-color: transparent;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.news-image {
    height: 180px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 212, 255, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
}

.news-card-content {
    padding: 25px;
}

.news-tag {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(0, 212, 255, 0.15);
    color: #00d4ff;
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 15px;
}

.news-card h3 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-card p {
    color: #8b92a8;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #5a6270;
    font-size: 13px;
}

.news-list-section {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.2);
}

.news-list-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
    text-decoration: none;
}

.news-list-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(10px);
}

.news-list-content {
    flex: 1;
}

.news-list-content h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 8px;
}

.news-list-content p {
    color: #8b92a8;
    font-size: 14px;
    line-height: 1.6;
}

.news-list-meta {
    text-align: right;
    color: #00d4ff;
    font-size: 14px;
}

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

.page-item {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    color: #b0b8c8;
    text-decoration: none;
    transition: all 0.3s;
}

.page-item:hover,
.page-item.active {
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    color: #0a0e1a;
    border-color: transparent;
}

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

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

.article-header {
    text-align: center;
    margin-bottom: 50px;
}

.article-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.15);
    color: #00d4ff;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 20px;
}

.article-header h1 {
    font-size: 36px;
    color: #fff;
    margin-bottom: 25px;
    line-height: 1.4;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    color: #8b92a8;
    font-size: 14px;
}

.article-content {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    padding: 50px;
}

.article-content p {
    color: #b0b8c8;
    font-size: 16px;
    line-height: 2;
    margin-bottom: 25px;
}

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

.article-content h3 {
    color: #fff;
    font-size: 20px;
    margin: 30px 0 15px;
}

.article-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.article-content li {
    color: #b0b8c8;
    line-height: 2;
    margin-bottom: 10px;
}

.highlight-box {
    background: rgba(0, 212, 255, 0.1);
    border-left: 4px solid #00d4ff;
    padding: 25px 30px;
    margin: 30px 0;
    border-radius: 0 12px 12px 0;
}

.highlight-box p {
    color: #fff;
    margin: 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin: 30px 0;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 25px;
}

.feature-item h4 {
    color: #00d4ff;
    margin-bottom: 10px;
    font-size: 18px;
}

.feature-item p {
    color: #8b92a8;
    font-size: 14px;
    margin: 0;
}

.related-news {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.2);
}

.related-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.related-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
    text-decoration: none;
}

.related-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(10px);
}

.related-item h4 {
    color: #fff;
    font-size: 16px;
}

.related-item span {
    color: #00d4ff;
    font-size: 13px;
}

.help-hero {
    padding: 80px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.help-hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.help-hero p {
    font-size: 18px;
    color: #b0b8c8;
    max-width: 600px;
    margin: 0 auto 40px;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 18px 60px 18px 25px;
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 16px;
    outline: none;
    transition: all 0.3s;
}

.search-box input:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.search-box input::placeholder {
    color: #5a6270;
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
}

.quick-links {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.2);
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.quick-link-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s;
    text-decoration: none;
}

.quick-link-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
}

.quick-link-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

.quick-link-card h4 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 10px;
}

.quick-link-card p {
    color: #8b92a8;
    font-size: 14px;
}

.faq-section {
    padding: 80px 0;
}

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

.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s;
}

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

.faq-question h4 {
    color: #fff;
    font-size: 17px;
    font-weight: 500;
}

.faq-question .icon {
    color: #00d4ff;
    font-size: 20px;
    transition: transform 0.3s;
}

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

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
}

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

.faq-answer p {
    color: #b0b8c8;
    line-height: 1.8;
}

.guide-section {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.2);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.guide-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 35px;
    transition: all 0.3s;
}

.guide-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-5px);
}

.guide-step {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
}

.guide-card h4 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 15px;
}

.guide-card p {
    color: #8b92a8;
    line-height: 1.8;
    font-size: 15px;
}

.security-section {
    padding: 80px 0;
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.security-info h3 {
    font-size: 28px;
    color: #00d4ff;
    margin-bottom: 20px;
}

.security-info p {
    color: #b0b8c8;
    line-height: 2;
    margin-bottom: 25px;
}

.security-list {
    list-style: none;
}

.security-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 18px;
    color: #fff;
}

.security-list li::before {
    content: "✓";
    width: 26px;
    height: 26px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 14px;
    font-weight: bold;
    flex-shrink: 0;
}

.security-visual {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 212, 255, 0.05));
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 60px;
    text-align: center;
}

.security-visual .icon {
    font-size: 100px;
    margin-bottom: 20px;
}

.security-visual h4 {
    color: #00d4ff;
    font-size: 24px;
    margin-bottom: 10px;
}

.security-visual p {
    color: #8b92a8;
}

.contact-section {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
}

.contact-section h2 {
    font-size: 36px;
    color: #00d4ff;
    margin-bottom: 20px;
}

.contact-section > p {
    color: #b0b8c8;
    font-size: 18px;
    margin-bottom: 40px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 40px 30px;
    transition: all 0.3s;
}

.contact-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-5px);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 32px;
}

.contact-card h4 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 15px;
}

.contact-card p {
    color: #8b92a8;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .features-grid,
    .stats-grid,
    .steps-grid,
    .values-grid,
    .news-grid,
    .advantages-grid,
    .quick-links-grid,
    .guide-grid,
    .contact-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content,
    .security-content {
        grid-template-columns: 1fr;
    }
    
    .hero h1,
    .download-hero h1 {
        font-size: 32px;
    }
    
    .about-hero h1,
    .news-hero h1,
    .help-hero h1 {
        font-size: 32px;
    }
    
    nav ul {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .article-content {
        padding: 30px 20px;
    }
    
    .article-header h1 {
        font-size: 26px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .news-list-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .news-list-meta {
        text-align: left;
        margin-top: 15px;
    }
}