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

:root {
    --primary-color: #00ff41;
    --secondary-color: #00d4ff;
    --accent-color: #00ff88;
    --text-primary: #00ff41;
    --text-secondary: #00d4aa;
    --bg-dark: #000000;
    --bg-darker: #000000;
    --grid-color: rgba(0, 255, 65, 0.1);
    --glow-color: rgba(0, 255, 65, 0.5);
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Courier New', 'Consolas', 'Monaco', monospace;
    background: #000000;
    color: var(--text-primary);
    height: 100vh;
    overflow-x: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* 扫描线效果 */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
    background: linear-gradient(
        transparent 50%,
        rgba(0, 255, 65, 0.03) 50%
    );
    background-size: 100% 4px;
    animation: scanline 8s linear infinite;
}

@keyframes scanline {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(4px);
    }
}

/* 网格覆盖层 */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background-image: 
        linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

/* 数据流效果 */
.data-stream {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.1;
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.4;
    box-shadow: 0 0 6px var(--primary-color);
    animation: float 15s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-100px) translateX(50px);
        opacity: 1;
    }
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

/* 语言切换按钮 */
.language-switcher {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 100;
}

.lang-btn {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    font-family: 'Courier New', 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
    position: relative;
    overflow: hidden;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(0, 255, 65, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.lang-btn:hover::before {
    width: 300px;
    height: 300px;
}

.lang-btn:hover {
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 
        0 0 20px rgba(0, 255, 65, 0.6),
        inset 0 0 20px rgba(0, 255, 65, 0.1);
    transform: translateY(-2px);
}

.lang-text {
    position: relative;
    z-index: 1;
    text-shadow: 0 0 5px var(--glow-color);
}

.header {
    text-align: center;
    padding: 0.5rem 0 1rem 0;
    animation: fadeInDown 1s ease-out;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--glow-color), 0 0 20px var(--glow-color), 0 0 30px var(--glow-color);
    letter-spacing: 0.3em;
    animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% {
        text-shadow: 0 0 10px var(--glow-color), 0 0 20px var(--glow-color), 0 0 30px var(--glow-color);
    }
    50% {
        text-shadow: 0 0 20px var(--glow-color), 0 0 30px var(--glow-color), 0 0 40px var(--glow-color);
    }
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.domain-name {
    letter-spacing: 0.2em;
}

.domain-extension {
    color: var(--secondary-color);
    margin-left: 0.5rem;
}

.tagline {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.7;
}

.main-content {
    animation: fadeInUp 1s ease-out 0.3s both;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.hero-section {
    text-align: center;
    padding: 0;
}

.title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.title-line {
    display: block;
    animation: slideInLeft 0.8s ease-out;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.title-line:nth-child(3) {
    animation-delay: 0.4s;
}

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

.highlight {
    color: var(--primary-color);
    font-size: 3.5rem;
    text-shadow: 
        0 0 10px var(--glow-color),
        0 0 20px var(--glow-color),
        0 0 30px var(--glow-color),
        0 0 40px var(--glow-color);
    animation: pulse 2s ease-in-out infinite;
    letter-spacing: 0.2em;
}

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

.subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    animation: fadeIn 1s ease-out 0.6s both;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.8;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.feature-card {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    border: 1px solid var(--grid-color);
    border-radius: 0;
    padding: 1rem;
    text-align: center;
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out both;
    position: relative;
    box-shadow: inset 0 0 10px rgba(0, 255, 65, 0.1);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid var(--primary-color);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    opacity: 0.3;
}

.feature-card:nth-child(1) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.4s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.6s;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(0, 255, 65, 0.05);
    border-color: var(--primary-color);
    box-shadow: 
        0 0 10px rgba(0, 255, 65, 0.3),
        inset 0 0 20px rgba(0, 255, 65, 0.1);
}

.feature-code {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--glow-color);
    font-weight: 700;
    letter-spacing: 0.1em;
}

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

.feature-card h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.4;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

.domain-display {
    margin: 0;
    display: flex;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.domain-box {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid var(--primary-color);
    padding: 1.5rem 3rem;
    border-radius: 0;
    text-align: center;
    box-shadow: 
        0 0 20px rgba(0, 255, 65, 0.5),
        inset 0 0 30px rgba(0, 255, 65, 0.1);
    position: relative;
    overflow: hidden;
    animation: glow 3s ease-in-out infinite;
}

.domain-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 65, 0.1), transparent);
    animation: shine 3s infinite;
}

.domain-box::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid var(--primary-color);
    opacity: 0.3;
    pointer-events: none;
}

@keyframes shine {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(0, 255, 65, 0.5),
            inset 0 0 30px rgba(0, 255, 65, 0.1);
    }
    50% {
        box-shadow: 
            0 0 30px rgba(0, 255, 65, 0.7),
            inset 0 0 40px rgba(0, 255, 65, 0.15);
    }
}

.domain-text {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
    color: var(--primary-color);
    text-shadow: 
        0 0 10px var(--glow-color),
        0 0 20px var(--glow-color);
}

.cursor {
    animation: blink 1s infinite;
    color: var(--primary-color);
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

.domain-status {
    font-size: 0.75rem;
    opacity: 0.8;
    position: relative;
    z-index: 1;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.price-section {
    margin: 0;
    display: flex;
    justify-content: center;
    animation: fadeInUp 1s ease-out 1s both;
}

.price-box {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 0;
    text-align: center;
    box-shadow: 
        0 0 15px rgba(0, 255, 65, 0.3),
        inset 0 0 20px rgba(0, 255, 65, 0.05);
    position: relative;
}

.price-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.price-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 
        0 0 10px var(--glow-color),
        0 0 20px var(--glow-color);
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.price-divider {
    color: var(--text-secondary);
    opacity: 0.5;
    font-weight: 400;
}

.contact-section {
    text-align: center;
    padding: 0;
    margin: 0;
    animation: fadeInUp 1s ease-out 1s both;
}

.contact-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 0.8rem;
}

.btn {
    padding: 0.7rem 1.8rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: rgba(0, 0, 0, 0.8);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 
        0 0 20px rgba(0, 255, 65, 0.6),
        inset 0 0 20px rgba(0, 255, 65, 0.1);
    color: var(--primary-color);
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.8);
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 
        0 0 20px rgba(0, 212, 255, 0.6),
        inset 0 0 20px rgba(0, 212, 255, 0.1);
    color: var(--secondary-color);
}

.btn span {
    position: relative;
    z-index: 1;
}

.contact-info {
    margin-top: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.7;
}


@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0.5rem 1rem;
    }
    
    .language-switcher {
        top: 0.5rem;
        right: 0.5rem;
    }
    
    .lang-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .logo {
        font-size: 1.8rem;
    }
    
    .title {
        font-size: 1.8rem;
    }
    
    .highlight {
        font-size: 2.2rem;
    }
    
    .subtitle {
        font-size: 0.85rem;
    }
    
    .domain-text {
        font-size: 1.8rem;
    }
    
    .domain-box {
        padding: 1rem 2rem;
    }
    
    .price-box {
        padding: 0.8rem 1.5rem;
    }
    
    .price-value {
        font-size: 1.2rem;
        gap: 0.5rem;
    }
    
    .price-divider {
        display: none;
    }
    
    .price-value span {
        display: block;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .feature-card {
        padding: 0.8rem;
    }
    
    .contact-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        padding: 0.6rem 1.5rem;
        font-size: 0.85rem;
    }
    
    .contact-info {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        gap: 1rem;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .highlight {
        font-size: 1.8rem;
    }
    
    .domain-text {
        font-size: 1.5rem;
    }
    
    .domain-box {
        padding: 0.8rem 1.5rem;
    }
    
    .price-box {
        padding: 0.6rem 1rem;
    }
    
    .price-value {
        font-size: 1rem;
        flex-direction: column;
        gap: 0.3rem;
    }
}