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

:root {
    --primary-color: #A855F7;
    --primary-light: #C084FC;
    --primary-dark: #9333EA;
    --secondary-color: #1F1F2E;
    --secondary-light: #2D2D3F;
    --secondary-dark: #0F0F18;
    --accent-color: #F472B6;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --text-muted: #71717A;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: var(--secondary-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

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

header {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary-color) 100%);
    padding: 15px 0;
    border-bottom: 1px solid var(--secondary-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

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

.logo-icon {
    font-size: 28px;
}

.logo-text h1 {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text .tagline {
    font-size: 12px;
    color: var(--text-muted);
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

nav ul li a {
    display: block;
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

nav ul li a:hover {
    color: var(--text-primary);
    background-color: var(--secondary-light);
}

nav ul li.active a {
    color: var(--text-primary);
    background-color: var(--primary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-input {
    padding: 8px 15px;
    background-color: var(--secondary-light);
    border: 1px solid var(--secondary-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    width: 200px;
}

.search-input:focus {
    border-color: var(--primary-color);
}

.search-btn {
    padding: 8px 15px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
}

.login-btn {
    padding: 8px 20px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
}

.login-btn:hover {
    background-color: var(--primary-dark);
}

.hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    padding: 60px 0;
}

.hero-slider {
    position: relative;
    height: 400px;
}

.slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    flex: 1;
    padding-left: 50px;
}

.slide-content h2 {
    font-size: 42px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.slide-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.slide-image {
    flex: 1;
    text-align: center;
    font-size: 150px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(168, 85, 247, 0.3);
}

.btn.secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
    margin-left: 15px;
}

.btn.secondary:hover {
    background-color: var(--primary-color);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.section-header h3 {
    font-size: 24px;
    color: var(--text-primary);
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
}

.view-all:hover {
    text-decoration: underline;
}

.featured-videos,
.categories-section,
.channels-section {
    padding: 50px 0;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.video-card {
    background-color: var(--secondary-color);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--secondary-light);
    transition: all 0.3s ease;
}

.video-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.video-thumbnail {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
}

.play-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    transition: all 0.3s ease;
}

.video-card:hover .play-icon {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    padding: 5px 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 12px;
    border-radius: 5px;
}

.quality {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 5px 10px;
    background-color: var(--primary-color);
    color: white;
    font-size: 12px;
    border-radius: 5px;
}

.video-info {
    padding: 15px;
}

.video-info h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.video-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--text-muted);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
}

.category-card {
    background-color: var(--secondary-color);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--secondary-light);
    transition: all 0.3s ease;
}

.category-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.category-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.category-name {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.category-count {
    font-size: 13px;
    color: var(--text-muted);
}

.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.channel-card {
    background-color: var(--secondary-color);
    padding: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    border: 1px solid var(--secondary-light);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.channel-card:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.channel-avatar {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.channel-info h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.channel-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

.subscribe-btn-small {
    margin-top: 10px;
    padding: 5px 15px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 12px;
    cursor: pointer;
}

.subscribe-btn-small:hover {
    background-color: var(--primary-dark);
}

.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 50px 0;
    text-align: center;
}

.cta-section h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: white;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

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

.cta-section .btn.primary {
    background-color: white;
    color: var(--primary-color);
}

.cta-section .btn.secondary {
    border-color: white;
    color: white;
}

.cta-section .btn.secondary:hover {
    background-color: white;
    color: var(--primary-color);
}

.page-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    padding: 40px 0;
    margin-bottom: 30px;
}

.page-header h2 {
    font-size: 28px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.page-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.videos-content,
.channels-content,
.live-content,
.download-content,
.about-content {
    padding-bottom: 50px;
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-tab {
    padding: 8px 20px;
    background-color: var(--secondary-color);
    border: 1px solid var(--secondary-light);
    color: var(--text-secondary);
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.filter-tab:hover,
.filter-tab.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.sort-options select {
    padding: 8px 15px;
    background-color: var(--secondary-color);
    border: 1px solid var(--secondary-light);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 14px;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 10px 15px;
    text-decoration: none;
    color: var(--text-secondary);
    background-color: var(--secondary-color);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.pagination span.current {
    background-color: var(--primary-color);
    color: white;
}

.pagination a:hover {
    background-color: var(--secondary-light);
}

.featured-channel {
    margin-bottom: 30px;
}

.channel-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 40px;
    border-radius: 15px;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.channel-avatar-large {
    width: 100px;
    height: 100px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.channel-info h3 {
    font-size: 28px;
    color: white;
    margin-bottom: 10px;
}

.channel-info p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
}

.channel-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6) !important;
}

.subscribe-btn {
    padding: 12px 30px;
    background-color: white;
    color: var(--primary-color);
    border: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    margin-left: auto;
}

.subscribe-btn:hover {
    background-color: var(--secondary-light);
}

.channel-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px !important;
}

.live-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.live-card {
    background-color: var(--secondary-color);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--secondary-light);
    transition: all 0.3s ease;
}

.live-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.live-card.featured {
    grid-column: span 2;
}

.live-thumbnail {
    position: relative;
    height: 160px;
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
}

.live-card.featured .live-thumbnail {
    height: 200px;
    font-size: 70px;
}

.live-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 5px 15px;
    background-color: var(--danger-color, #EF4444);
    color: white;
    font-size: 12px;
    font-weight: bold;
    border-radius: 5px;
}

.viewer-count {
    position: absolute;
    bottom: 10px;
    left: 10px;
    padding: 5px 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 12px;
    border-radius: 5px;
}

.live-avatar {
    position: absolute;
    bottom: -25px;
    right: 15px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    border: 3px solid var(--secondary-color);
}

.live-info {
    padding: 30px 15px 15px;
}

.live-info h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.live-host {
    font-size: 13px;
    color: var(--primary-color);
    margin-bottom: 5px;
    display: block;
}

.live-game {
    font-size: 12px;
    color: var(--text-muted);
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.download-card {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid var(--secondary-light);
}

.platform-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.download-card h3 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.download-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.download-info span {
    font-size: 13px;
    color: var(--text-muted);
}

.download-btn {
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
    margin-bottom: 15px;
}

.download-btn:hover {
    background-color: var(--primary-dark);
}

.note {
    font-size: 12px;
    color: var(--text-muted);
}

.qr-section {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    background-color: var(--secondary-color);
    padding: 40px;
    border-radius: 15px;
    flex-wrap: wrap;
}

.qr-code {
    text-align: center;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    background-color: var(--secondary-light);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    margin-bottom: 15px;
}

.qr-code p {
    font-size: 14px;
    color: var(--text-secondary);
}

.qr-features h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.qr-features ul {
    list-style: none;
}

.qr-features li {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.about-section {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid var(--secondary-light);
}

.about-section h3 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.about-section p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 5px;
    width: 12px;
    height: 12px;
    background-color: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--secondary-color);
}

.timeline-item .year {
    display: inline-block;
    padding: 5px 12px;
    background-color: var(--primary-color);
    color: white;
    font-size: 14px;
    font-weight: bold;
    border-radius: 20px;
    margin-bottom: 10px;
}

.timeline-item .content h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.timeline-item .content p {
    font-size: 14px;
    color: var(--text-secondary);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.culture-item {
    background-color: var(--secondary-light);
    padding: 25px;
    border-radius: 10px;
    text-align: center;
}

.culture-item .icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.culture-item h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.culture-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

footer {
    background-color: var(--secondary-dark);
    padding: 40px 0;
    border-top: 1px solid var(--secondary-light);
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand .logo-icon {
    font-size: 24px;
}

.footer-brand h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links h5 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact h5 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.footer-contact p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--secondary-light);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        margin-top: 10px;
    }

    .search-input {
        width: 150px;
    }

    .slide-content h2 {
        font-size: 28px;
    }

    .slide-image {
        font-size: 80px;
    }

    .btn.secondary {
        margin-left: 0;
        margin-top: 15px;
    }

    .live-card.featured {
        grid-column: span 1;
    }

    .qr-section {
        flex-direction: column;
    }
}