:root {
    --primary: #FFFFFF;
    --secondary: #303948;
    --accent: #3cbef2;
    --bg: #0a0e14;
    --card-bg: rgba(48, 57, 72, 0.12);
    --card-bg-hover: rgba(48, 57, 72, 0.2);
    --text-light: rgba(255, 255, 255, 0.92);
    --text-muted: rgba(255, 255, 255, 0.65);
    --border: rgba(60, 190, 242, 0.15);
    --border-hover: rgba(60, 190, 242, 0.4);
    --success: #00d97e;
    --error: #ff4766;
    --warning: #ffb347;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 12px 48px rgba(60, 190, 242, 0.15);
    --radius: 16px;
    --radius-sm: 10px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.orbital-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.08;
    will-change: transform;
}

#orb1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -150px;
    left: -150px;
    animation: float 35s infinite linear;
}

#orb2 {
    width: 350px;
    height: 350px;
    background: var(--success);
    bottom: -100px;
    right: 15%;
    animation: float 28s infinite linear reverse;
}

#orb3 {
    width: 280px;
    height: 280px;
    background: #5d3fd3;
    top: 60%;
    left: 85%;
    animation: float 42s infinite linear;
}

@keyframes float {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); }
    33% { transform: translate(40px, 40px) rotate(120deg) scale(1.05); }
    66% { transform: translate(-20px, 60px) rotate(240deg) scale(0.95); }
    100% { transform: translate(0, 0) rotate(360deg) scale(1); }
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    padding: 20px 0;
    backdrop-filter: blur(16px) saturate(180%);
    background: rgba(10, 14, 20, 0.88);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    will-change: backdrop-filter;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo img {
    display: block;
    transition: var(--transition);
    filter: drop-shadow(0 4px 12px rgba(60, 190, 242, 0.2));
}

.nav-logo:hover img {
    transform: translateY(-2px);
    filter: drop-shadow(0 6px 16px rgba(60, 190, 242, 0.3));
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.2px;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
    opacity: 0.9;
}

.nav-links a:hover {
    color: var(--accent);
    opacity: 1;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    background: rgba(60, 190, 242, 0.1);
}

.nav-toggle:hover {
    background: rgba(60, 190, 242, 0.2);
}

.hero {
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.1;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight {
    color: var(--accent);
    -webkit-text-fill-color: var(--accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 780px;
    margin: 0 auto 48px;
    font-weight: 400;
    line-height: 1.7;
}

.hero-subtitle strong {
    color: var(--accent);
    font-weight: 600;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.stat-value {
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
    font-feature-settings: "tnum";
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--accent) 0%, #2a9cd8 100%);
    color: white;
    padding: 18px 36px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.cta-button:hover::before {
    left: 100%;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 48px;
    max-width: 800px;
    line-height: 1.7;
}

.content-section {
    padding: 100px 0;
}

.content-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    margin-bottom: 24px;
    transition: var(--transition);
    backdrop-filter: blur(8px);
    will-change: transform;
}

.content-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    background: var(--card-bg-hover);
    box-shadow: var(--shadow);
}

.content-card h3 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.content-card p {
    margin-bottom: 16px;
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1.05rem;
}

.content-card p strong {
    color: var(--accent);
    font-weight: 600;
}

.content-card ol, .content-card ul {
    padding-left: 24px;
    margin-bottom: 20px;
    color: var(--text-light);
}

.content-card li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.links-section {
    padding: 100px 0;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 28px;
    margin-bottom: 48px;
}

.link-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    backdrop-filter: blur(8px);
    will-change: transform;
}

.link-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-5px);
    background: var(--card-bg-hover);
    box-shadow: var(--shadow-hover);
}

.link-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.link-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--success);
    font-weight: 600;
    font-size: 0.95rem;
}

.link-status i {
    font-size: 0.7rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.link-latency {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.link-body {
    margin-bottom: 24px;
}

.link-url {
    background: rgba(0, 0, 0, 0.25);
    padding: 18px;
    border-radius: var(--radius-sm);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.95rem;
    margin-bottom: 18px;
    cursor: pointer;
    transition: var(--transition);
    word-break: break-all;
    line-height: 1.5;
    border: 1px solid transparent;
}

.link-url:hover {
    background: rgba(60, 190, 242, 0.1);
    border-color: var(--border);
}

.copy-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--accent) 0%, #2a9cd8 100%);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 16px rgba(60, 190, 242, 0.2);
}

.copy-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(60, 190, 242, 0.3);
}

.link-footer {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.link-tag {
    background: rgba(60, 190, 242, 0.12);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
}

.link-tag:hover {
    background: rgba(60, 190, 242, 0.2);
    transform: scale(1.05);
}

.links-info {
    background: rgba(60, 190, 242, 0.07);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    margin-top: 48px;
}

.links-info h3 {
    color: var(--accent);
    margin-bottom: 16px;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.links-info p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.links-info p strong {
    color: var(--accent);
    font-weight: 600;
}

.validator-section {
    padding: 100px 0;
}

.validator-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 48px;
    max-width: 800px;
    margin: 0 auto;
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow);
}

.validator-input-group {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.validator-input {
    flex: 1;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 1.05rem;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
}

.validator-input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.09);
    box-shadow: 0 0 0 3px rgba(60, 190, 242, 0.1);
}

.validator-btn {
    padding: 0 40px;
    background: linear-gradient(135deg, var(--accent) 0%, #2a9cd8 100%);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(60, 190, 242, 0.2);
}

.validator-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(60, 190, 242, 0.3);
}

.validator-info {
    background: rgba(60, 190, 242, 0.07);
    border-left: 3px solid var(--accent);
    padding: 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-top: 32px;
}

.validator-info p {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}

.validator-info p strong {
    color: var(--accent);
    font-weight: 600;
}

.security-tips {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    margin-top: 48px;
}

.security-tips h3 {
    color: var(--accent);
    margin-bottom: 24px;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.security-tips ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}

.security-tips li {
    padding: 12px 0 12px 36px;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.security-tips li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
    font-size: 1.1rem;
    top: 12px;
}

.security-tips li strong {
    color: var(--accent);
    font-weight: 600;
}

.guide-section {
    padding: 100px 0;
}

.guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    margin-bottom: 48px;
}

.guide-step {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    position: relative;
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.guide-step:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    background: var(--card-bg-hover);
    box-shadow: var(--shadow);
}

.step-number {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent) 0%, #2a9cd8 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.3rem;
    box-shadow: 0 4px 16px rgba(60, 190, 242, 0.3);
}

.guide-step h3 {
    color: var(--accent);
    margin-bottom: 16px;
    font-size: 1.25rem;
    font-weight: 600;
    padding-right: 20px;
}

.guide-note {
    background: rgba(60, 190, 242, 0.07);
    border-left: 4px solid var(--accent);
    padding: 32px;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.guide-note h3 {
    color: var(--accent);
    margin-bottom: 16px;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.seo-content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    line-height: 1.8;
    font-size: 1.05rem;
}

.seo-content p {
    margin-bottom: 24px;
    color: var(--text-light);
}

.seo-content strong {
    color: var(--accent);
    font-weight: 700;
    padding: 0 2px;
}

.footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--border);
    background: rgba(10, 14, 20, 0.9);
    backdrop-filter: blur(8px);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h4 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-section p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-section p strong {
    color: var(--accent);
    font-weight: 600;
}

.copyright {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    margin-top: 40px;
    opacity: 0.7;
}

.footer-warning {
    text-align: center;
    color: var(--warning);
    font-size: 0.9rem;
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 500;
}

.notification {
    position: fixed;
    top: 24px;
    right: 24px;
    background: linear-gradient(135deg, var(--success) 0%, #00b368 100%);
    color: white;
    padding: 18px 28px;
    border-radius: var(--radius-sm);
    z-index: 10000;
    transform: translateX(150%);
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    font-weight: 600;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.notification.show {
    transform: translateX(0);
}

.validation-result {
    margin-top: 20px;
    padding: 20px;
    border-radius: var(--radius-sm);
    display: none;
    font-weight: 500;
    line-height: 1.6;
}

.validation-result.success {
    display: block;
    background: rgba(0, 217, 126, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.validation-result.error {
    display: block;
    background: rgba(255, 71, 102, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .links-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
    
    .security-tips ul {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 20, 0.98);
        flex-direction: column;
        padding: 24px;
        border-top: 1px solid var(--border);
        gap: 20px;
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        gap: 40px;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .validator-input-group {
        flex-direction: column;
    }
    
    .validator-btn {
        width: 100%;
        justify-content: center;
        padding: 20px;
    }
    
    .guide-steps {
        grid-template-columns: 1fr;
    }
    
    .step-number {
        top: -16px;
        left: -16px;
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .content-card,
    .validator-card,
    .security-tips,
    .guide-note,
    .seo-content {
        padding: 28px;
    }
    
    .link-card {
        padding: 24px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-button {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .stat {
        min-width: 100px;
    }
    
    .stat-value {
        font-size: 1.8rem;
    }
}

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