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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #FFFFFF;
    color: #274372;
    line-height: 1.75;
    font-size: 17px;
    overflow-x: hidden;
}

header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(39, 67, 114, 0.12);
    z-index: 1000;
    padding: 18px 0;
    transition: all 0.3s ease;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -2px;
    display: flex;
    gap: 4px;
}

.prime {
    color: #274372;
}

.echo {
    color: #27437299;
    font-style: italic;
}

nav a {
    margin-left: 32px;
    text-decoration: none;
    color: #274372;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.25s ease;
}

nav a:hover {
    color: #1a2f55;
}

.echo-line {
    position: fixed;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(39, 67, 114, 0.25), transparent);
    z-index: 2;
    pointer-events: none;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(to bottom, #FFFFFF 0%, #F6F9FF 100%);
    position: relative;
    padding: 0 20px;
}

.hero-content {
    max-width: 860px;
    z-index: 10;
}

.hero h1 {
    font-size: clamp(42px, 8vw, 68px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -3.5px;
    margin-bottom: 20px;
    color: #274372;
}

.tagline {
    font-size: 21px;
    color: #274372bb;
    margin-bottom: 48px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.mirrors {
    margin: 40px 0 50px;
}

.mirrors-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3.5px;
    text-transform: uppercase;
    color: #27437288;
    margin-bottom: 16px;
}

.mirror-link {
    display: block;
    color: #274372;
    text-decoration: none;
    font-family: ui-monospace, monospace;
    font-size: 17px;
    line-height: 1.6;
    margin: 11px 0;
    transition: all 0.3s ease;
    word-break: break-all;
}

.mirror-link:hover {
    color: #0f1e38;
    text-decoration: underline;
}

.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 18px;
}

.stat {
    background: #FFFFFF;
    border: 1px solid rgba(39, 67, 114, 0.18);
    padding: 10px 26px;
    border-radius: 50px;
    font-weight: 600;
    color: #274372;
    font-size: 15px;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(39, 67, 114, 0.06);
}

.ad-banner {
    max-width: 1060px;
    margin: 80px auto 100px;
    padding: 0 20px;
}

.ad-gif {
    width: 100%;
    height: auto;
    border-radius: 16px;
    border: 1px solid rgba(39, 67, 114, 0.15);
    box-shadow: 0 20px 60px rgba(39, 67, 114, 0.1);
    display: block;
}

.echo-section {
    padding: 140px 0;
    position: relative;
}

.echo-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
}

.echo-label {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #27437277;
    align-self: flex-start;
    margin-left: 60px;
}

.echo-image {
    max-width: 100%;
    border-radius: 18px;
    border: 1px solid rgba(39, 67, 114, 0.16);
    box-shadow: 0 30px 80px rgba(39, 67, 114, 0.12);
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.echo-section:hover .echo-image {
    transform: translateY(-12px);
}

.echo-description {
    max-width: 720px;
    text-align: center;
}

.echo-description h2 {
    font-size: 38px;
    line-height: 1.15;
    font-weight: 700;
    color: #274372;
    margin-bottom: 22px;
}

.echo-description p {
    font-size: 19px;
    color: #274372bb;
    margin-bottom: 18px;
}

.wallets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 32px;
    width: 100%;
    max-width: 980px;
}

.wallet-card {
    background: #FFFFFF;
    border: 1px solid rgba(39, 67, 114, 0.16);
    border-radius: 18px;
    padding: 32px 28px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.wallet-card:hover {
    border-color: rgba(39, 67, 114, 0.4);
    transform: translateY(-14px);
    box-shadow: 0 25px 70px rgba(39, 67, 114, 0.1);
}

.wallet-card h3 {
    font-size: 26px;
    color: #274372;
    margin: 24px 0 12px;
}

.info-section {
    background: #F8FAFF;
    padding: 130px 0;
}

.info-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 40px;
}

.info-container h2 {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    color: #274372;
    margin-bottom: 60px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.info-card {
    background: #FFFFFF;
    border: 1px solid rgba(39, 67, 114, 0.14);
    border-radius: 16px;
    padding: 38px 32px;
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(39, 67, 114, 0.08);
}

.info-card h3 {
    font-size: 22px;
    color: #274372;
    margin-bottom: 16px;
}

.final-echo {
    padding: 120px 0 100px;
    text-align: center;
    background: #FFFFFF;
}

.final-content {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 30px;
}

.final-content h2 {
    font-size: 44px;
    line-height: 1.1;
    font-weight: 700;
    color: #274372;
    margin-bottom: 28px;
}

.final-content p {
    font-size: 20px;
    color: #274372bb;
    margin-bottom: 32px;
}

.keywords {
    font-size: 15px;
    color: #27437288;
    letter-spacing: 1.5px;
}

footer {
    background: #274372;
    color: #FFFFFF;
    padding: 90px 0 50px;
    text-align: center;
}

.footer-content p {
    max-width: 720px;
    margin: 0 auto 14px;
    font-size: 17px;
}

.disclaimer {
    font-size: 14px;
    opacity: 0.78;
    max-width: 680px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .header-content {
        padding: 0 30px;
    }
    .echo-label {
        margin-left: 0;
        align-self: center;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 18px;
    }
    nav a {
        margin: 0 12px;
        font-size: 15px;
    }
    .hero h1 {
        letter-spacing: -2px;
    }
    .wallets-grid {
        grid-template-columns: 1fr;
    }
    .echo-container {
        padding: 0 24px;
    }
}

html {
    scroll-behavior: smooth;
}

.echo-description h3 {
    font-size: 22px;
    font-weight: 600;
    color: #274372;
    margin: 32px 0 12px;
    text-align: left;
    max-width: 680px;
}

.info-section h2 {
    font-size: 42px;
    font-weight: 700;
    color: #274372;
    text-align: center;
    margin-bottom: 56px;
}

.final-echo h2 {
    font-size: 42px;
    line-height: 1.15;
    font-weight: 700;
    color: #274372;
    margin-bottom: 28px;
}

.mirrors-title {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #27437299;
    margin-bottom: 18px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
}

.stat {
    background: #ffffff;
    border: 1px solid rgba(39, 67, 114, 0.2);
    padding: 11px 28px;
    border-radius: 50px;
    font-weight: 600;
    color: #274372;
    font-size: 15.5px;
    box-shadow: 0 4px 12px rgba(39, 67, 114, 0.05);
}

.echo-description p {
    font-size: 18.5px;
    line-height: 1.78;
    color: #274372cc;
    margin-bottom: 22px;
    text-align: justify;
}

.wallet-card p {
    font-size: 17px;
    color: #274372bb;
    line-height: 1.7;
}

.info-card p {
    font-size: 17px;
    color: #274372bb;
    line-height: 1.75;
}

.final-content p {
    font-size: 19px;
    color: #274372bb;
    line-height: 1.75;
    margin-bottom: 24px;
}

.keywords {
    font-size: 15px;
    color: #27437288;
    letter-spacing: 1px;
    margin-top: 12px;
}

h1 {
    font-size: clamp(48px, 7.5vw, 72px);
    font-weight: 700;
    letter-spacing: -4px;
    line-height: 1.05;
    margin-bottom: 24px;
    color: #274372;
}

h2 {
    font-size: 38px;
    font-weight: 700;
    line-height: 1.2;
    color: #274372;
    margin-bottom: 20px;
}

.echo-label {
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 4.5px;
    text-transform: uppercase;
    color: #27437277;
    margin-bottom: 12px;
    align-self: flex-start;
}

@media (max-width: 768px) {
    .echo-description h3 {
        font-size: 20px;
    }
    
    .hero h1 {
        font-size: 42px;
        letter-spacing: -2.5px;
    }
    
    .echo-description p {
        font-size: 17.5px;
    }
    
    .info-section h2 {
        font-size: 36px;
    }
}

.echo-description {
    text-align: left;
    max-width: 740px;
}

.echo-description p:last-child {
    margin-bottom: 0;
}