* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', 'Helvetica', sans-serif;
        }
        
        :root {
            --hy-primary-color: #f0b90b;
            --hy-secondary-color: #1e2026;
            --hy-accent-color: #2b3139;
            --hy-text-color: #eaecef;
            --hy-light-text: #848e9c;
            --hy-dark-bg: #0b0e11;
            --hy-card-bg: #161a1e;
            --hy-green: #0ecb81;
            --hy-red: #f6465d;
        }
        
        body {
            background-color: var(--hy-dark-bg);
            color: var(--hy-text-color);
            line-height: 1.6;
            padding-bottom: 80px; /* 为底部悬浮导航留出空间 */
        }
        
        /* 扁平化图标样式 */
        .hy-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background-color: rgba(240, 185, 11, 0.1);
            color: var(--hy-primary-color);
            font-size: 1.2rem;
            margin-right: 10px;
        }
        
        .hy-icon img{
            width: 100%;
            height: 100%;
        }
        
        /* 头部导航 */
        .hy-header {
            background-color: var(--hy-secondary-color);
            padding: 1rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        
        .hy-logo {
            display: flex;
            align-items: center;
        }
        
        .hy-logo h1 {
            color: var(--hy-primary-color);
            font-size: 1.8rem;
            margin-left: 10px;
        }
        
        .hy-nav-links {
            display: flex;
            list-style: none;
        }
        
        .hy-nav-links li {
            margin-left: 2rem;
        }
        
        .hy-nav-links a {
            color: var(--hy-text-color);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .hy-nav-links a:hover {
            color: var(--hy-primary-color);
        }
        
        .hy-mobile-menu {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* 主内容区 */
        .hy-hero {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 4rem 5%;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .hy-hero-content {
            flex: 1;
            padding-right: 2rem;
        }
        
        .hy-hero-content h2 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        
        .hy-hero-content h2 span {
            color: var(--hy-primary-color);
        }
        
        .hy-hero-content p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            color: var(--hy-light-text);
            max-width: 600px;
        }
        
        .hy-hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
        }
        
        .hy-phone-mockup {
            width: 300px;
            height: 600px;
            background: linear-gradient(145deg, #1e2026, #2b3139);
            border-radius: 40px;
            position: relative;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .hy-phone-screen {
            width: 90%;
            height: 95%;
            background-color: var(--hy-dark-bg);
            border-radius: 30px;
            overflow: hidden;
            position: relative;
        }
        
        .hy-app-interface {
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, #1e2026, #0b0e11);
            padding: 20px;
        }
        
        .hy-app-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .hy-app-logo {
            color: var(--hy-primary-color);
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .hy-app-nav {
            display: flex;
            gap: 15px;
        }
        
        .hy-app-nav span {
            width: 6px;
            height: 6px;
            background-color: var(--hy-light-text);
            border-radius: 50%;
        }
        
        .hy-price-card {
            background-color: var(--hy-card-bg);
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 15px;
        }
        
        .hy-coin-name {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .hy-coin-icon {
            width: 24px;
            height: 24px;
            background-color: var(--hy-primary-color);
            border-radius: 50%;
            margin-right: 10px;
        }
        
        .hy-coin-price {
            font-size: 1.2rem;
            font-weight: bold;
        }
        
        .hy-coin-change {
            color: var(--hy-green);
            font-size: 0.9rem;
        }
        
        /* 下载按钮区域 */
        .hy-download-section {
            padding: 4rem 5%;
            background-color: var(--hy-secondary-color);
            text-align: center;
        }
        
        .hy-download-section h3 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        
        .hy-download-section p {
            color: var(--hy-light-text);
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        
        .hy-download-buttons {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }
        
        .hy-download-btn {
            display: flex;
            align-items: center;
            background-color: var(--hy-card-bg);
            padding: 1rem 2rem;
            border-radius: 10px;
            text-decoration: none;
            color: var(--hy-text-color);
            transition: all 0.3s;
            min-width: 200px;
        }
        
        .hy-download-btn:hover {
            background-color: var(--hy-accent-color);
            transform: translateY(-5px);
        }
        
        .hy-btn-icon {
            font-size: 2rem;
            margin-right: 1rem;
        }
        
        .hy-btn-text {
            text-align: left;
        }
        
        .hy-btn-text span {
            display: block;
            font-size: 0.9rem;
            color: var(--hy-light-text);
        }
        
        .hy-btn-text strong {
            font-size: 1.2rem;
        }
        
        /* App截图区域 */
        .hy-screenshots {
            padding: 5rem 5%;
            background-color: var(--hy-dark-bg);
        }
        
        .hy-screenshots h3 {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
        }
        
        .hy-screenshot-container {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
        }
        
        .hy-screenshot-slider {
            display: flex;
            overflow-x: auto;
            scroll-behavior: smooth;
            scrollbar-width: none; /* Firefox */
            -ms-overflow-style: none; /* IE and Edge */
            gap: 20px;
            padding: 20px 0;
        }
        
        .hy-screenshot-slider::-webkit-scrollbar {
            display: none; /* Chrome, Safari and Opera */
        }
        
        .hy-screenshot-item {
            flex: 0 0 auto;
            width: 250px;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s;
        }
        
        .hy-screenshot-item:hover {
            transform: scale(1.05);
        }
        
        .hy-screenshot-item img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        .hy-screenshot-nav {
            display: flex;
            justify-content: center;
            margin-top: 20px;
            gap: 10px;
        }
        
        .hy-screenshot-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--hy-light-text);
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .hy-screenshot-dot.active {
            background-color: var(--hy-primary-color);
        }
        
        /* 功能特性 */
        .hy-features {
            padding: 5rem 5%;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .hy-features h3 {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
        }
        
        .hy-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .hy-feature-card {
            background-color: var(--hy-card-bg);
            padding: 2rem;
            border-radius: 15px;
            transition: transform 0.3s;
        }
        
        .hy-feature-card:hover {
            transform: translateY(-10px);
        }
        
        .hy-feature-icon {
            font-size: 2.5rem;
            color: var(--hy-primary-color);
            margin-bottom: 1.5rem;
        }
        
        .hy-feature-card h4 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        
        .hy-feature-card p {
            color: var(--hy-light-text);
        }
        
        /* 常见问题 */
        .hy-faq {
            padding: 5rem 5%;
            background-color: var(--hy-secondary-color);
        }
        
        .hy-faq h3 {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
        }
        
        .hy-faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .hy-faq-item {
            margin-bottom: 1rem;
            border-bottom: 1px solid var(--hy-accent-color);
        }
        
        .hy-faq-question {
            padding: 1.5rem 0;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 500;
        }
        
        .hy-faq-answer {
            padding-bottom: 1.5rem;
            color: var(--hy-light-text);
            display: none;
        }
        
        .hy-faq-item.hy-active .hy-faq-answer {
            display: block;
        }
        
        .hy-faq-toggle {
            font-size: 1.5rem;
            transition: transform 0.3s;
        }
        
        .hy-faq-item.hy-active .hy-faq-toggle {
            transform: rotate(45deg);
        }
        
        /* 快讯板块 - 移动到常见问题后面 */
        .hy-news-ticker {
            background-color: var(--hy-dark-bg);
            padding: 3rem 5%;
            border-top: 1px solid var(--hy-accent-color);
        }
        
        .hy-news-header {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
        }
        
        .hy-news-title {
            font-weight: bold;
            color: var(--hy-primary-color);
            margin-right: 15px;
            font-size: 1.5rem;
        }
        
        .hy-news-container {
            max-width: 1000px;
            margin: 0 auto;
            background-color: var(--hy-card-bg);
            border-radius: 10px;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .hy-news-list {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: space-between;
        }
        
        .hy-news-item {
            display: flex;
            align-items: center;
            padding: 10px 15px;
            background-color: var(--hy-secondary-color);
            border-radius: 8px;
            flex: 1 1 calc(33.333% - 20px);
            min-width: 250px;
        }
        
        .hy-news-coin {
            font-weight: bold;
            margin-right: 8px;
            color: var(--hy-primary-color);
        }
        
        .hy-news-price {
            margin-right: 8px;
            font-weight: 600;
        }
        
        .hy-news-change {
            margin-right: 15px;
            font-weight: 600;
        }
        
        .hy-news-change.positive {
            color: var(--hy-green);
        }
        
        .hy-news-change.negative {
            color: var(--hy-red);
        }
        
        /* 官方公告板块 - 新增 */
        .hy-announcements {
            padding: 3rem 5%;
            background-color: var(--hy-secondary-color);
        }
        
        .hy-announcements h3 {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: var(--hy-primary-color);
        }
        
        .hy-announcement-container {
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .hy-announcement-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        
        .hy-announcement-item {
            background-color: var(--hy-card-bg);
            border-radius: 10px;
            padding: 20px;
            transition: all 0.3s;
            border-left: 4px solid var(--hy-primary-color);
        }
        
        .hy-announcement-item:hover {
            transform: translateX(5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .hy-announcement-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .hy-announcement-title {
            font-size: 1.2rem;
            font-weight: bold;
            color: var(--hy-text-color);
        }
        
        .hy-announcement-title a,
.hy-announcement-title a:visited,
.hy-announcement-title a:hover,
.hy-announcement-title a:active {
  color: #ffffff;
  text-decoration: none;
}

        
        .hy-announcement-date {
            color: var(--hy-light-text);
            font-size: 0.9rem;
        }
        
        .hy-announcement-content {
            color: var(--hy-light-text);
            line-height: 1.5;
        }
        
        .hy-announcement-badge {
            display: inline-block;
            background-color: var(--hy-primary-color);
            color: var(--hy-dark-bg);
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: bold;
            margin-right: 10px;
        }
        
        .hy-announcement-badge.new {
            background-color: var(--hy-green);
        }
        
        .hy-announcement-badge.important {
            background-color: var(--hy-red);
        }
        
        /* 底部悬浮下载导航 */
        .hy-floating-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background-color: var(--hy-secondary-color);
            padding: 15px 5%;
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .hy-floating-text {
            flex: 1;
        }
        
        .hy-floating-text h4 {
            margin-bottom: 5px;
            color: var(--hy-primary-color);
        }
        
        .hy-floating-text p {
            color: var(--hy-light-text);
            font-size: 0.9rem;
        }
        
        .hy-floating-buttons {
            display: flex;
            gap: 15px;
        }
        
        .hy-floating-btn {
            background-color: var(--hy-primary-color);
            color: var(--hy-secondary-color);
            border: none;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .hy-floating-btn:hover {
            background-color: #e0a800;
        }

.hy-floating-buttons a,
.hy-floating-buttons a:visited,
.hy-floating-buttons a:hover,
.hy-floating-buttons a:active {
  color: #1e2026;            /* 设置字体颜色 */
  text-decoration: none;     /* 去掉下划线 */
}

        .hy-close-btn {
            background: none;
            border: none;
            color: var(--hy-light-text);
            font-size: 1.2rem;
            cursor: pointer;
            margin-left: 15px;
        }
        
        /* 页脚 */
        .hy-footer {
            background-color: var(--hy-dark-bg);
            padding: 3rem 5%;
            text-align: center;
        }
        
        .hy-footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .hy-footer-links a {
            color: var(--hy-light-text);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .hy-footer-links a:hover {
            color: var(--hy-primary-color);
        }
        
        .hy-copyright {
            color: var(--hy-light-text);
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .hy-hero {
                flex-direction: column;
                text-align: center;
            }
            
            .hy-hero-content {
                padding-right: 0;
                margin-bottom: 3rem;
            }
            
            .hy-hero-content p {
                margin: 0 auto 2rem;
            }
            
            .hy-news-item {
                flex: 1 1 calc(50% - 20px);
            }
        }
        
        @media (max-width: 768px) {
            .hy-nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--hy-secondary-color);
                flex-direction: column;
                padding: 1rem 0;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
            }
            
            .hy-nav-links.hy-active {
                display: flex;
            }
            
            .hy-nav-links li {
                margin: 0.5rem 0;
                text-align: center;
            }
            
            .hy-mobile-menu {
                display: block;
            }
            
            .hy-hero-content h2 {
                font-size: 2.5rem;
            }
            
            .hy-phone-mockup {
                width: 250px;
                height: 500px;
            }
            
            .hy-features h3, .hy-faq h3, .hy-screenshots h3, .hy-announcements h3 {
                font-size: 2rem;
            }
            
            .hy-floating-nav {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
            
            .hy-floating-text {
                margin-bottom: 10px;
            }
            
            .hy-news-item {
                flex: 1 1 100%;
            }
        }
        
        @media (max-width: 480px) {
            .hy-hero-content h2 {
                font-size: 2rem;
            }
            
            .hy-download-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .hy-download-btn {
                width: 100%;
                max-width: 300px;
            }
            
            .hy-feature-grid {
                grid-template-columns: 1fr;
            }
            
            .hy-floating-buttons {
                flex-direction: column;
                width: 100%;
            }
            
            .hy-floating-btn {
                width: 100%;
                justify-content: center;
            }
            
            .hy-announcement-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }