@charset "utf-8";

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

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    line-height: 1.8;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

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

header {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 215, 0, 0.3);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    background: linear-gradient(45deg, #ffd700, #ff6b00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav ul li a {
    color: #e0e0e0;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: 8px 15px;
    border-radius: 5px;
}

nav ul li a:hover {
    color: #ffd700;
    background: rgba(255, 215, 0, 0.1);
}

.banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #0a0a0a 100%);
    padding: 180px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,215,0,0.1)" stroke-width="0.5"/></svg>');
    background-size: 200px;
    opacity: 0.5;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #ffd700, #ff6b00, #ffd700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.banner p {
    font-size: 20px;
    color: #b0b0b0;
    max-width: 800px;
    margin: 0 auto 30px;
    position: relative;
}

.banner-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    position: relative;
}

.btn-primary {
    background: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    color: #000;
    padding: 15px 40px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    border: 2px solid #ffd700;
    color: #ffd700;
    padding: 15px 40px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 215, 0, 0.1);
    transform: translateY(-3px);
}

.section {
    padding: 80px 0;
    position: relative;
}

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

.section-title h2 {
    font-size: 36px;
    color: #ffd700;
    margin-bottom: 15px;
}

.section-title p {
    color: #888;
    font-size: 16px;
}

.features {
    background: linear-gradient(180deg, #0a0a0a 0%, #1a1a2e 100%);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #ffd700;
    box-shadow: 0 20px 40px rgba(255, 215, 0, 0.2);
}

.feature-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 15px;
}

.feature-card p {
    color: #aaa;
    font-size: 14px;
}

.products {
    background: #0a0a0a;
}

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

.product-card {
    background: linear-gradient(135deg, rgba(255,215,0,0.1) 0%, rgba(26,26,46,0.8) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(255, 215, 0, 0.3);
}

.product-img {
    height: 200px;
    background: linear-gradient(135deg, #1a1a2e, #0a0a0a);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    color: #ffd700;
    font-size: 20px;
    margin-bottom: 10px;
}

.product-info p {
    color: #aaa;
    font-size: 14px;
    margin-bottom: 15px;
}

.product-link {
    color: #ffd700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.news {
    background: linear-gradient(180deg, #1a1a2e 0%, #0a0a0a 100%);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-card:hover {
    border-color: #ffd700;
    transform: translateY(-5px);
}

.news-img {
    height: 200px;
    background: linear-gradient(135deg, #ff6b00, #ffd700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
}

.news-content {
    padding: 25px;
}

.news-date {
    color: #ffd700;
    font-size: 13px;
    margin-bottom: 10px;
}

.news-content h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-content p {
    color: #888;
    font-size: 14px;
}

.about {
    background: #0a0a0a;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    color: #ffd700;
    font-size: 28px;
    margin-bottom: 20px;
}

.about-text p {
    color: #aaa;
    font-size: 15px;
    margin-bottom: 15px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-item {
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
}

.stat-number {
    font-size: 36px;
    color: #ffd700;
    font-weight: bold;
}

.stat-label {
    color: #888;
    font-size: 14px;
}

.contact {
    background: linear-gradient(180deg, #1a1a2e 0%, #0a0a0a 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    padding: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 30px;
}

.contact-icon {
    font-size: 30px;
    flex-shrink: 0;
}

.contact-text h4 {
    color: #ffd700;
    font-size: 16px;
    margin-bottom: 5px;
}

.contact-text p {
    color: #aaa;
    font-size: 14px;
}

.contact-form {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: #ffd700;
    font-size: 14px;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ffd700;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

footer {
    background: #000;
    padding: 40px 0 20px;
    border-top: 1px solid rgba(255, 215, 0, 0.2);
}

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

.footer-section h4 {
    color: #ffd700;
    font-size: 16px;
    margin-bottom: 15px;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #888;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ffd700;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #666;
    font-size: 13px;
}

.crypto-prices {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px 0;
    overflow: hidden;
}

.price-ticker {
    display: flex;
    gap: 40px;
    animation: scroll 20s linear infinite;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.price-item {
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.price-symbol {
    font-weight: bold;
    color: #ffd700;
}

.price-value {
    color: #0f0;
}

.price-up { color: #0f0; }
.price-down { color: #f00; }

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ffd700, #ff8c00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 215, 0, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #ffd700;
    border-radius: 2px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-top: 1px solid rgba(255, 215, 0, 0.3);
    }

    nav ul.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .banner h1 {
        font-size: 32px;
    }

    .banner p {
        font-size: 16px;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }
}

.secure-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid rgba(0, 255, 0, 0.3);
    padding: 10px 20px;
    border-radius: 50px;
    margin-top: 20px;
}

.secure-badge span {
    color: #0f0;
    font-size: 14px;
}

.section-divider {
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.5), transparent);
    margin: 0 auto;
    max-width: 600px;
}