/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --accent-color: #ff6b35;
    --dark-bg: #0a0a0a;
    --darker-bg: #000000;
    --card-bg: rgba(26, 26, 26, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-color: rgba(255, 255, 255, 0.1);
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Typography */
    --font-primary: 'Orbitron', monospace;
    --font-secondary: 'Roboto', sans-serif;
    --font-size-xl: 3.5rem;
    --font-size-lg: 2.5rem;
    --font-size-md: 1.5rem;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    
    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s ease;
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

body {
    font-family: var(--font-secondary);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-primary);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 1.8rem;
    animation: rotate 4s linear infinite;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--darker-bg);
    overflow: hidden;
    padding-top: 70px; /* 为固定导航栏留出空间 */
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 153, 204, 0.05) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

.crypto-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.number-highlight {
    color: var(--accent-color);
    font-weight: 700;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

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

.stat-number {
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-top: 5px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-service, .btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary, .btn-cta {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover, .btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.btn-service {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    width: 100%;
    justify-content: center;
}

.btn-service:hover {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    animation: slideInRight 1s ease-out;
}

.mining-visualization {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.mining-rig {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.mining-status {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 8px;
    border: 1px solid var(--primary-color);
    margin-bottom: 10px;
}

.status-info, .hashrate-info {
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-text, .hashrate-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.status-value {
    color: var(--primary-color);
    font-weight: 700;
    font-family: var(--font-primary);
}

.status-value.active {
    animation: status-pulse 2s infinite;
}

.hashrate-value {
    color: var(--accent-color);
    font-weight: 700;
    font-family: var(--font-primary);
    animation: hashrate-flicker 3s infinite;
}

.rig-frame {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.gpu-card {
    width: 120px;
    height: 80px;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 8px;
    position: relative;
    border: 2px solid var(--primary-color);
    animation: mining-pulse 2s ease-in-out infinite;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 8px;
    overflow: hidden;
}

.mining-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0 0 8px 8px;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 0 0 8px 8px;
    animation: mining-progress 4s linear infinite;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 10px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4));
    animation: progress-shine 4s linear infinite;
}

.mining-earnings {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(247, 147, 30, 0.1));
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 10px;
}

.earnings-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.earnings-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.earnings-amount {
    color: var(--accent-color);
    font-weight: 700;
    font-family: var(--font-primary);
    font-size: 1.1rem;
    animation: earnings-count 5s infinite;
}

.mining-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.rig-frame {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.gpu-card {
    width: 120px;
    height: 80px;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 8px;
    position: relative;
    border: 2px solid var(--primary-color);
    animation: mining-pulse 2s ease-in-out infinite;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 8px;
}

.gpu-fan {
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: relative;
    align-self: center;
    animation: fan-spin 1s linear infinite;
}

.gpu-fan::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
}

.gpu-ports {
    display: flex;
    gap: 3px;
    align-self: flex-end;
}

.port {
    width: 8px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
}

.gpu-power-light {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 6px;
    height: 6px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: power-blink 1.5s infinite;
}

.rig-base {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #333 0%, #222 100%);
    border-radius: 8px;
    padding: 15px;
    border: 1px solid var(--border-color);
}

.power-supply {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.power-led {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00ff00;
    animation: power-blink 2s infinite;
}

.power-fan {
    width: 30px;
    height: 30px;
    border: 2px solid var(--text-muted);
    border-radius: 50%;
    position: relative;
    animation: fan-spin 0.8s linear infinite;
}

.power-fan::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: var(--text-muted);
    border-radius: 50%;
}

.motherboard {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cpu-socket {
    width: 25px;
    height: 25px;
    background: var(--primary-color);
    border-radius: 4px;
    position: relative;
}

.cpu-socket::after {
    content: 'CPU';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 6px;
    color: var(--text-primary);
    font-weight: bold;
}

.ram-slots {
    display: flex;
    gap: 5px;
}

.ram-stick {
    width: 15px;
    height: 5px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.crypto-symbols {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.crypto-symbol {
    width: 80px;
    height: 80px;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    font-weight: 700;
    animation: float 3s ease-in-out infinite;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.crypto-symbol::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 15px;
    background: inherit;
    opacity: 0.1;
    z-index: -1;
}

.crypto-symbol:hover {
    transform: translateY(-5px) scale(1.05);
    border-color: currentColor;
}

.crypto-icon {
    font-size: 2rem;
    line-height: 1;
}

.crypto-name {
    font-size: 0.8rem;
    font-family: var(--font-primary);
    opacity: 0.9;
}

.crypto-symbol.btc {
    background: var(--gradient-secondary);
    color: #ffffff;
    animation-delay: 0s;
}

.crypto-symbol.eth {
    background: var(--gradient-primary);
    color: #ffffff;
    animation-delay: 1s;
}

.crypto-symbol.usdt {
    background: linear-gradient(135deg, #26a17b 0%, #2ea98c 100%);
    color: #ffffff;
    animation-delay: 2s;
}

/* Sections */
.features, .services, .cta {
    padding: var(--section-padding);
    position: relative;
}

.features {
    background: var(--dark-bg);
}

.services {
    background: var(--darker-bg);
}

.cta {
    background: var(--dark-bg);
}

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

.section-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: var(--transition-smooth);
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition-smooth);
    position: relative;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.service-card.btc::before {
    background: var(--gradient-secondary);
}

.service-card.eth::before {
    background: var(--gradient-primary);
}

.service-card.usdt::before {
    background: linear-gradient(135deg, #26a17b 0%, #2ea98c 100%);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-header {
    padding: 40px 30px 20px;
    text-align: center;
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    font-size: 2rem;
}

.service-card.btc .service-icon {
    background: var(--gradient-secondary);
}

.service-card.usdt .service-icon {
    background: linear-gradient(135deg, #26a17b 0%, #2ea98c 100%);
}

.service-header h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.service-price {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.service-features {
    padding: 0 30px 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--primary-color);
    width: 16px;
}

.service-action {
    padding: 0 30px 30px;
}

/* CTA Section */
.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-benefits {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    min-width: 150px;
    justify-content: flex-start;
}

.benefit-item i {
    color: var(--accent-color);
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.btn-cta {
    font-size: 1.1rem;
    padding: 18px 40px;
}

/* Footer */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 20px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-primary);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.footer-logo i {
    font-size: 1.8rem;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

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

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

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

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-muted);
}

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

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-smooth);
    z-index: 1000;
    box-shadow: var(--shadow-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

/* 悬浮按钮样式 */
.floating-button {
    position: fixed;
    bottom: 95px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    opacity: 0.9;
    visibility: visible;
    transform: translateY(0);
}

.floating-button img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.floating-button:hover {
    transform: translateY(-3px) scale(1.1);
    opacity: 1;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.floating-button:hover img {
    transform: scale(1.05);
}

/* 悬浮按钮响应式设计 */
@media (max-width: 768px) {
    .floating-button {
        bottom: 92px;
        right: 30px;
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .floating-button {
        bottom: 86px;
        right: 30px;
        width: 50px;
        height: 50px;
    }
}

/* Animations */
@keyframes status-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes hashrate-flicker {
    0%, 100% {
        opacity: 1;
    }
    25% {
        opacity: 0.8;
    }
    50% {
        opacity: 0.9;
    }
    75% {
        opacity: 0.7;
    }
}

@keyframes mining-progress {
    0% {
        width: 0%;
    }
    100% {
        width: 100%;
    }
}

@keyframes progress-shine {
    0% {
        transform: translateX(-10px);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(110px);
        opacity: 0;
    }
}

@keyframes earnings-count {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
        color: #00ff00;
    }
    100% {
        transform: scale(1);
    }
}

@keyframes fan-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes power-blink {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 10px currentColor;
    }
    50% {
        opacity: 0.3;
        box-shadow: none;
    }
}

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

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes mining-pulse {
    0%, 100% {
        opacity: 0.7;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

@keyframes grid-move {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-xl: 2.5rem;
        --font-size-lg: 2rem;
        --section-padding: 60px 0;
    }
    
    .hero {
        padding-top: 90px; /* 移动端需要更多空间避免导航栏遮挡 */
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu .nav-link {
        font-size: 1.2rem;
        margin: 20px 0;
        width: 100%;
        text-align: center;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .mining-visualization {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }
    
    .mining-rig {
        padding: 20px;
        width: 100%;
        max-width: 450px;
        margin: 0 auto;
        min-height: auto;
    }
    
    .mining-status {
        flex-direction: column;
        gap: 12px;
        text-align: center;
        padding: 15px;
        margin-bottom: 15px;
    }
    
    .status-info, .hashrate-info {
        justify-content: center;
        font-size: 0.95rem;
    }
    
    .rig-frame {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        justify-items: center;
        margin-bottom: 15px;
    }
    
    .gpu-card {
        width: 95px;
        height: 75px;
        padding: 6px;
    }
    
    .gpu-fan {
        width: 18px;
        height: 18px;
    }
    
    .gpu-fan::before {
        width: 7px;
        height: 7px;
    }
    
    .rig-base {
        padding: 15px;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
        gap: 20px;
    }
    
    .power-fan {
        width: 25px;
        height: 25px;
    }
    
    .power-fan::before {
        width: 10px;
        height: 10px;
    }
    
    .cpu-socket {
        width: 22px;
        height: 22px;
    }
    
    .cpu-socket::after {
        font-size: 5px;
    }
    
    .mining-earnings {
        padding: 12px;
        margin-top: 0;
    }
    
    .earnings-display {
        gap: 8px;
    }
    
    .earnings-label {
        font-size: 0.85rem;
    }
    
    .earnings-amount {
        font-size: 1.2rem;
    }
    
    .crypto-symbols {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .crypto-symbol {
        width: 70px;
        height: 70px;
    }
    
    .crypto-icon {
        font-size: 1.8rem;
    }
    
    .crypto-name {
        font-size: 0.7rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-benefits {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .language-selector {
        min-width: auto;
        text-align: center;
    }
    
    .language-dropdown {
        max-width: 200px;
        margin: 15px auto 0;
    }
    
    .lang-select {
        font-size: 0.9rem;
        padding: 10px 35px 10px 12px;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 0 15px;
        --font-size-xl: 2rem;
    }
    
    .hero {
        padding-top: 100px; /* 小屏设备需要更多顶部空间 */
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-secondary, .btn-cta {
        width: 100%;
        justify-content: center;
    }
    
    .mining-rig {
        padding: 15px;
        max-width: 350px;
    }
    
    .mining-status {
        padding: 12px;
        gap: 8px;
    }
    
    .status-info, .hashrate-info {
        font-size: 0.9rem;
    }
    
    .rig-frame {
        gap: 12px;
    }
    
    .gpu-card {
        width: 85px;
        height: 65px;
        padding: 5px;
    }
    
    .rig-base {
        padding: 12px;
        gap: 15px;
    }
    
    .mining-earnings {
        padding: 10px;
    }
    
    .earnings-label {
        font-size: 0.8rem;
    }
    
    .earnings-amount {
        font-size: 1.1rem;
    }
    
    .crypto-symbols {
        gap: 12px;
    }
    
    .crypto-symbol {
        width: 65px;
        height: 65px;
    }
    
    .crypto-icon {
        font-size: 1.6rem;
    }
    
    .crypto-name {
        font-size: 0.65rem;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .service-header {
        padding: 30px 20px 15px;
    }
    
    .service-features, .service-action {
        padding: 0 20px 20px;
    }
    
    .language-dropdown {
        max-width: 180px;
        margin: 12px auto 0;
    }
    
    .lang-select {
        font-size: 0.85rem;
        padding: 9px 32px 9px 10px;
    }
    
    .dropdown-icon {
        right: 12px;
        font-size: 0.8rem;
    }
}

/* Language Selector */
.language-selector {
    min-width: 200px;
}

.language-dropdown {
    position: relative;
    margin-top: 15px;
}

.lang-select {
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 40px 12px 15px;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-fast);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.lang-select:hover {
    background: rgba(0, 212, 255, 0.05);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.lang-select:focus {
    outline: none;
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

.lang-select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.lang-select:disabled:hover {
    background: var(--card-bg);
    border-color: var(--border-color);
    transform: none;
}

.dropdown-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    transition: var(--transition-fast);
}

.lang-select:hover + .dropdown-icon {
    color: var(--primary-color);
}

.lang-select:focus + .dropdown-icon {
    color: var(--primary-color);
    transform: translateY(-50%) rotate(180deg);
}

/* Option styling for supported browsers */
.lang-select option {
    background: var(--card-bg);
    color: var(--text-primary);
    padding: 10px 15px;
    border: none;
}

.lang-select option:hover {
    background: var(--primary-color);
    color: var(--text-primary);
}

.lang-select option:checked {
    background: var(--primary-color);
    color: var(--text-primary);
    font-weight: 600;
}

/* 当前语言选项特殊样式 */
.lang-select option[selected] {
    background: linear-gradient(135deg, #00d4ff, #00b4d8) !important;
    color: white !important;
    font-weight: 700 !important;
}

/* 为当前语言选项在 Firefox 中提供更好的支持 */
.lang-select option[value*="✓"] {
    background: linear-gradient(135deg, #00d4ff, #00b4d8) !important;
    color: white !important;
    font-weight: 700 !important;
}

/* RTL Support for Arabic */
[dir="rtl"] {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] .hero-container {
    text-align: right;
}

[dir="rtl"] .hero-content {
    text-align: right;
}

[dir="rtl"] .hero-stats {
    justify-content: flex-end;
}

[dir="rtl"] .hero-actions {
    justify-content: flex-end;
}

[dir="rtl"] .nav-container {
    flex-direction: row-reverse;
}

[dir="rtl"] .nav-menu {
    order: 1;
}

[dir="rtl"] .nav-logo {
    order: 2;
}

[dir="rtl"] .hamburger {
    order: 3;
}

[dir="rtl"] .section-header {
    text-align: right;
}

[dir="rtl"] .feature-card,
[dir="rtl"] .service-card {
    text-align: right;
}

[dir="rtl"] .cta-content {
    text-align: right;
}

[dir="rtl"] .footer-content {
    text-align: right;
}

[dir="rtl"] .dropdown-icon {
    right: auto;
    left: 15px;
}

[dir="rtl"] .lang-select {
    padding: 12px 15px 12px 40px;
}

@media (max-width: 768px) {
    [dir="rtl"] .hero-container {
        text-align: center;
    }
    
    [dir="rtl"] .hero-actions {
        justify-content: center;
    }
    
    [dir="rtl"] .cta-benefits {
        align-items: center;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(255, 255, 255, 0.3);
        --card-bg: rgba(26, 26, 26, 1);
    }
}