* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
html {
    scroll-behavior: smooth;
}
body {
    background-color: #fff;
    color: #000;
    overflow-x: hidden;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.header {
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo-img {
    height: 32px;
}
.nav-list {
    display: flex;
    gap: 24px;
    list-style: none;
    align-items: center;
}
.nav-link {
    color: #000;
    text-decoration: none;
    font-size: 16px;
}
.refresh-btn {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.lang-btn {
    border: 1px solid #0052ff;
    background: none;
    color: #0052ff;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
}
.download-btn {
    background-color: #0052ff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
}

/* 英雄区 */
.hero {
    padding: 80px 0;
}
.hero-inner {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}
.hero-content {
    flex: 1;
    min-width: 300px;
}
.hero-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}
.hero-subtitle {
    font-size: 18px;
    color: #666;
    margin-bottom: 24px;
}
.hero-buttons {
    display: flex;
    gap: 16px;
}
.hero-btn {
    border: 1px solid #0052ff;
    color: #0052ff;
    padding: 12px 20px;
    border-radius: 20px;
    text-decoration: none;
    text-align: center;
}
.hero-visual {
    flex: 1;
    min-width: 300px;
}
.hero-img {
    width: 100%;
}

/* 信任基石 */
.trust-stats {
    padding: 40px 0;
}
.stats-inner {
    max-width: 1000px;
    margin: 0 auto;
}
.stats-grid {
    display: flex;
    justify-content: space-around;
    text-align: center;
}
.stat-label {
    font-size: 18px;
    color: #333;
}
.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: #0052ff;
}
.trust-banner {
    background-color: #0052ff;
    color: #fff;
    padding: 60px 0;
    border-radius: 20px;
    margin-top: 20px;
}
.banner-inner {
    display: flex;
    align-items: center;
    gap: 40px;
}
.banner-content {
    flex: 1;
}
.banner-title {
    font-size: 32px;
    margin-bottom: 16px;
}
.banner-desc {
    font-size: 18px;
    margin-bottom: 24px;
    line-height: 1.5;
}
.banner-btn {
    background-color: #fff;
    color: #0052ff;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
}
.banner-visual {
    flex: 1;
}
.banner-img {
    width: 100%;
}

/* 多链资产 */
.assets {
    background: linear-gradient(135deg, #00e5ff, #0052ff);
    color: #fff;
    padding: 60px 0;
    border-radius: 20px;
    margin: 40px 0;
}
.assets-inner {
    text-align: center;
}
.assets-title {
    font-size: 36px;
    margin-bottom: 12px;
}
.assets-subtitle {
    font-size: 16px;
    margin-bottom: 24px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.search-bar {
    max-width: 800px;
    margin: 0 auto 24px;
}
.search-input {
    width: 100%;
    padding: 12px 20px;
    border-radius: 20px;
    border: none;
    font-size: 16px;
}
.assets-table {
    background-color: #fff;
    color: #000;
    border-radius: 16px;
    padding: 20px;
    max-width: 1000px;
    margin: 0 auto;
}
.chain-table {
    width: 100%;
    border-collapse: collapse;
}
.chain-table th, .chain-table td {
    padding: 12px;
    text-align: left;
}
.chain-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    margin-right: 8px;
    vertical-align: middle;
}
.assets-footer {
    display: flex;
    justify-content: space-around;
    margin-top: 40px;
}
.footer-value {
    font-size: 20px;
    font-weight: 600;
}

/* DApp 浏览 */
.dapp {
    background: linear-gradient(135deg, #fff3cd, #ff9ff3);
    padding: 60px 0;
    border-radius: 20px;
    margin: 40px 0;
}
.dapp-inner {
    text-align: center;
}
.dapp-title {
    font-size: 42px;
    margin-bottom: 12px;
}
.dapp-subtitle {
    font-size: 18px;
    color: #333;
    margin-bottom: 24px;
}
.dapp-card {
    background-color: #fff;
    border-radius: 16px;
    padding: 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}
.dapp-content {
    flex: 1;
    text-align: left;
}
.dapp-card-title {
    font-size: 26px;
    margin-bottom: 12px;
}
.dapp-card-desc {
    font-size: 16px;
    color: #666;
    margin-bottom: 24px;
    line-height: 1.5;
}
.dapp-btn {
    border: 1px solid #0052ff;
    color: #0052ff;
    background: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
}
.dapp-visual {
    flex: 1;
}
.dapp-img {
    width: 100%;
}

/* 隐私安全 */
.privacy {
    background: linear-gradient(135deg, #ffff99, #33ff99);
    padding: 60px 0;
    border-radius: 20px;
    margin: 40px 0;
}
.privacy-inner {
    text-align: center;
}
.privacy-title {
    font-size: 32px;
    margin-bottom: 12px;
}
.privacy-subtitle {
    font-size: 16px;
    color: #333;
    margin-bottom: 24px;
}
.privacy-main {
    background-color: #fff;
    border-radius: 16px;
    padding: 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto 24px;
}
.privacy-card {
    flex: 1;
    text-align: left;
}
.privacy-card-title {
    font-size: 22px;
    margin-bottom: 12px;
}
.privacy-card-desc {
    font-size: 16px;
    color: #666;
    margin-bottom: 24px;
}
.privacy-btn {
    background-color: #0052ff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
}
.privacy-visual {
    flex: 1;
}
.privacy-img {
    width: 100%;
}
.privacy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}
.privacy-item {
    background-color: #fff;
    border-radius: 16px;
    padding: 20px;
    text-align: center;
}
.privacy-item-icon {
    font-size: 40px;
    margin-bottom: 12px;
}
.privacy-item-title {
    font-size: 18px;
    margin-bottom: 8px;
}
.privacy-item-desc {
    font-size: 14px;
    color: #666;
}
.privacy-more {
    border: 1px solid #000;
    background: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    margin-top: 24px;
}

/* 一站式钱包 */
.wallet {
    padding: 60px 0;
}
.wallet-inner {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}
.wallet-content {
    flex: 1;
    min-width: 300px;
}
.wallet-title {
    font-size: 28px;
    margin-bottom: 12px;
}
.wallet-subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 24px;
}
.wallet-tabs {
    display: flex;
    border: 1px solid #eee;
    border-radius: 20px;
    margin-bottom: 16px;
}
.tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 20px;
}
.tab-btn.active {
    background-color: #0052ff;
    color: #fff;
}
.wallet-download {
    background-color: #0052ff;
    color: #fff;
    padding: 10px 20px;
    border-radius: 20px;
    text-decoration: none;
    display: inline-block;
}
.wallet-visual {
    flex: 1;
    min-width: 300px;
}
.wallet-img {
    width: 100%;
    border-radius: 16px;
}
.community {
    margin-top: 40px;
}
.community-title {
    font-size: 28px;
    margin-bottom: 12px;
}
.community-subtitle {
    font-size: 16px;
    color: #666;
}
.wallet-video {
    width: 100%;
    border-radius: 16px;
    display: block;
}

/* 用户评价 */
.testimonials {
    padding: 60px 0;
}
.testimonials-inner {
    max-width: 1200px;
    margin: 0 auto;
}
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}
.testimonial-item {
    text-align: left;
}
.testimonial-img {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 12px;
}
.testimonial-name {
    font-weight: 600;
    margin-bottom: 8px;
}
.testimonial-text {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}
.testimonials-btn {
    background-color: #0052ff;
    color: #fff;
    padding: 10px 20px;
    border-radius: 20px;
    text-decoration: none;
    display: inline-block;
}

/* 页脚 */
.footer {
    background-color: #f5f5f5;
    padding: 40px 0;
    border-radius: 20px;
    margin-top: 40px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}
.footer-logo-img {
    height: 40px;
    margin-bottom: 24px;
}
.footer-links {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 24px;
}
.footer-column-title {
    font-weight: 600;
    margin-bottom: 12px;
}
.footer-column ul {
    list-style: none;
}
.footer-column ul li {
    margin-bottom: 8px;
}
.footer-column ul li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
}
.new-tag {
    background-color: #0052ff;
    color: #fff;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 4px;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 24px;
}
.footer-downloads-title {
    font-weight: 600;
    margin-bottom: 8px;
}
.footer-downloads-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 12px;
}
.download-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.download-btn-small {
    border: 1px solid #0052ff;
    color: #0052ff;
    padding: 8px 12px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
}
.footer-social-title {
    font-weight: 600;
    margin-bottom: 12px;
}
.social-icons {
    display: flex;
    gap: 12px;
}
.social-icon {
    font-size: 20px;
    color: #000;
    text-decoration: none;
}
.footer-certifications {
    display: flex;
    gap: 12px;
}
.cert-img {
    height: 40px;
}

/* 返回顶部按钮 */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #0052ff;
    color: #fff;
    font-size: 22px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9999;
}
#backToTop:hover {
    background-color: #003bb3;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-list {
        display: none;
    }
    .stats-grid {
        flex-wrap: wrap;
        gap: 20px;
    }
    .banner-inner, .dapp-card, .privacy-main, .wallet-inner {
        flex-direction: column;
    }
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .privacy-grid {
        grid-template-columns: 1fr;
    }
}