/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #000;
    color: #fff;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    /* IE11 兼容 */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#E6000000, endColorstr=#E6000000);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #fff;
}

.logo img {
    width: 100px;
    height: 100px;
    max-width: 100%;
    height: auto;
    /* 确保浏览器兼容性 */
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    backface-visibility: hidden;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-item {
    color: #fff;
    text-decoration: none;
    font-size: 17px;
    font-weight: bold;
    /* 字体渲染优化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 浏览器兼容的过渡效果 */
    -webkit-transition: color 0.3s ease;
    -moz-transition: color 0.3s ease;
    -o-transition: color 0.3s ease;
    transition: color 0.3s ease;
}

.nav-item:hover {
    color: #00f2ea;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.login-btn {
    color: #fff;
    text-decoration: none;
    padding: 8px 20px;
    font-size: 17px;
    font-weight: bold;
    /* 字体渲染优化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 浏览器兼容的过渡效果 */
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.login-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.register-btn {
    color: #000;
    background-color: #00f2ea;
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 17px;
    font-weight: bold;
    /* 字体渲染优化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 浏览器兼容的过渡效果 */
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.register-btn:hover {
    background-color: #fff;
    transform: translateY(-1px);
}

.icon-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.icon-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
}

/* 主横幅区域样式 */
.hero-section {
    position: relative;
    padding-top: 70px;
    padding-bottom: 30px;
    background-color: #000;
    overflow: hidden;
}

.hero-content {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 80px;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    max-width: 100%;
    margin: 0 auto;
    padding: 20px 0;
    /* 确保IE11正确识别flex布局 */
    -webkit-box-pack: center;
    -webkit-box-align: center;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
}

.hero-text {
    max-width: 600px;
    text-align: center;
    flex: 1;
    min-width: 300px;
    margin: 0 auto;
    /* IE11 flex属性兼容 */
    -webkit-box-flex: 1;
    -ms-flex: 1 1 300px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #fff;
}

.hero-subtitle {
    font-size: 14px;
    color: #fff;
    margin-bottom: 30px;
}

.hero-form {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.form-input {
    flex: 1;
    padding: 12px 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: #fff;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
}

.form-input:focus {
    border-color: #00f2ea;
    background-color: rgba(255, 255, 255, 0.15);
}

.form-input::placeholder {
    color: #ccc;
}

.form-btn {
    padding: 12px 32px;
    background-color: #fff;
    border: none;
    border-radius: 4px;
    color: #000;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    /* 触摸设备优化 */
    -webkit-tap-highlight-color: transparent;
    /* IE11 兼容 */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#00f2ea, endColorstr=#4787ff, GradientType=1);
}

.form-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.hero-alternative {
    font-size: 14px;
    color: #fff;
    margin-bottom: 16px;
    text-align: center;
}

.login-options {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.login-option {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-option:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.google-btn:hover {
    color: #db4437;
}

.apple-btn:hover {
    color: #fff;
}

.qrcode-btn:hover {
    color: #00f2ea;
}

.download-text {
    font-size: 14px;
    color: #fff;
    text-align: center;
}

.hero-image {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    margin: 0 auto;
}

.hero-image img {
    width: 100%;
    max-width: 460px;
    height: auto;
    object-fit: contain;
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-transition: transform 0.3s ease;
    -moz-transition: transform 0.3s ease;
    -o-transition: transform 0.3s ease;
    transition: transform 0.3s ease;
    display: block;
    margin: 0 auto;
}

.hero-image:hover img {
    -webkit-transform: scale(1.02);
    -moz-transform: scale(1.02);
    -o-transform: scale(1.02);
    transform: scale(1.02);
}

.hero-image img {
    max-width: 100%;
    height: auto;
    animation: float 6s ease-in-out infinite;
    -webkit-animation: float 6s ease-in-out infinite;
    -moz-animation: float 6s ease-in-out infinite;
    -o-animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
    100% {
        transform: translateY(0) rotate(0deg);
    }
}

@-webkit-keyframes float {
    0% {
        -webkit-transform: translateY(0) rotate(0deg);
    }
    50% {
        -webkit-transform: translateY(-20px) rotate(2deg);
    }
    100% {
        -webkit-transform: translateY(0) rotate(0deg);
    }
}

@-moz-keyframes float {
    0% {
        -moz-transform: translateY(0) rotate(0deg);
    }
    50% {
        -moz-transform: translateY(-20px) rotate(2deg);
    }
    100% {
        -moz-transform: translateY(0) rotate(0deg);
    }
}

/* 活动卡片区域样式 */
.activities-section {
    padding: 0px 0 20px;
    background-color: #000;
}

.activities-grid {
    display: -ms-grid;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 320px));
    -ms-grid-columns: 320px 24px 320px 24px 320px 24px 320px;
    gap: 24px;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    justify-content: center;
    align-items: start;
}

.activity-card {
    position: relative;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    cursor: pointer;
    overflow: hidden;
    width: 100%;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    margin: 0 auto;
    /* IE11 flex布局兼容 */
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-box-pack: center;
}

.activity-card .activity-img {
    width: 100%;
    height: auto;
    max-height: 160px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-transition: transform 0.3s ease;
    -moz-transition: transform 0.3s ease;
    -o-transition: transform 0.3s ease;
    transition: transform 0.3s ease;
    padding: 10px 0;
}

.activity-card:hover .activity-img {
    -webkit-transform: scale(1.05);
    -moz-transform: scale(1.05);
    -o-transform: scale(1.05);
    transform: scale(1.05);
}

/* 确保所有图片都使用相同的排版样式 */
img {
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-perspective: 1000;
    -moz-perspective: 1000;
    perspective: 1000;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

/* 为活动卡片添加IE11兼容性 */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .activities-grid {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
        -ms-flex-pack: center;
        justify-content: center;
    }
    
    .activity-card {
        -ms-flex: 0 0 calc(25% - 24px);
        flex: 0 0 calc(25% - 24px);
        max-width: calc(25% - 24px);
        /* IE11 盒模型兼容 */
        box-sizing: border-box;
        /* IE11 背景透明度兼容 */
        background-color: #0a0a0a;
        border-color: #333;
    }
    
    @media (max-width: 1200px) {
        .activity-card {
            -ms-flex: 0 0 calc(33.333% - 24px);
            flex: 0 0 calc(33.333% - 24px);
            max-width: calc(33.333% - 24px);
        }
    }
    
    @media (max-width: 768px) {
        .activity-card {
            -ms-flex: 0 0 calc(50% - 24px);
            flex: 0 0 calc(50% - 24px);
            max-width: calc(50% - 24px);
        }
    }
    
    @media (max-width: 480px) {
        .activity-card {
            -ms-flex: 0 0 100%;
            flex: 0 0 100%;
            max-width: 100%;
        }
    }
    
    /* IE11 渐变兼容性增强 */
    .activity-badge {
        filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#00f2ea, endColorstr=#4787ff, GradientType=1);
    }
    
    /* IE11 下划线兼容性 */
    .activity-more {
        text-decoration: underline;
    }
    
    .activity-more:hover {
        text-decoration-color: #00f2ea;
    }
    
    /* 加密货币排行榜IE11兼容性 */
    .ranking-tabs,
    .table-header,
    .table-row,
    .table-cell,
    .crypto-info,
    .crypto-details {
        display: block;
        float: left;
        box-sizing: border-box;
    }
    
    .ranking-tabs {
        width: 100%;
        max-width: 1400px;
        margin: 0 auto 30px;
        text-align: center;
    }
    
    .tab {
        display: inline-block;
        float: none;
    }
    
    .table-header {
        width: 100%;
        clear: both;
    }
    
    .header-item {
        width: 20%;
    }
    
    .header-item:first-child {
        width: 30%;
    }
    
    .table-row {
        width: 100%;
        clear: both;
        border-bottom: 1px solid #333;
    }
    
    .table-cell {
        width: 20%;
    }
    
    .table-cell.name-cell {
        width: 30%;
    }
    
    .crypto-info {
        width: 100%;
    }
    
    .crypto-details {
        width: calc(100% - 42px);
    }
    
    /* IE11 背景色兼容性 */
    .ranking-table {
        background-color: #0a0a0a;
        border-color: #333;
        max-width: 1400px;
        margin: 0 auto 20px;
    }
    
    /* IE11 查看全部链接居中兼容 */
    .view-all {
        width: 100%;
        max-width: 1400px;
        margin: 20px auto 0;
    }
    
    .table-header {
        background-color: #1a1a1a;
        border-bottom-color: #333;
    }
}

.activity-card:hover {
    transform: translateY(-5px);
    -webkit-transform: translateY(-5px);
    -moz-transform: translateY(-5px);
    -o-transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 242, 234, 0.2);
    border-color: #00f2ea;
    /* IE11 阴影兼容 */
    filter: progid:DXImageTransform.Microsoft.Shadow(color=#00f2ea, Direction=135, Strength=10);
}

.activity-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #fff;
}

.activity-desc {
    font-size: 14px;
    color: #888;
    margin-bottom: 16px;
}

.activity-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(90deg, #00f2ea 0%, #4787ff 100%);
    color: #000;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    /* 字体渲染优化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 浏览器兼容性 */
    display: block;
    white-space: nowrap;
    /* IE11 渐变背景兼容 */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#00f2ea, endColorstr=#4787ff, GradientType=1);
}

.activity-img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    margin-top: 10px;
}

.activity-more {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: none;
    border: none;
    color: #888;
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    /* 字体渲染优化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 全属性过渡效果 */
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    /* 下划线样式 */
    text-decoration: underline;
    -webkit-text-decoration-style: solid;
    text-decoration-style: solid;
    text-underline-offset: 3px;
    /* 触摸设备优化 */
    -webkit-tap-highlight-color: transparent;
}

.activity-more:hover {
    color: #00f2ea;
    /* 下划线颜色变化 */
    -webkit-text-decoration-color: #00f2ea;
    text-decoration-color: #00f2ea;
}

/* 交易平台功能展示区域 */
.trading-platform-section {
    background-color: #000;
    color: #fff;
    padding: 100px 0;
    position: relative;
}

.trading-platform-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 10, 30, 0.9) 0%, rgba(0, 0, 0, 0.95) 100%);
    z-index: 1;
}

.trading-platform-section .container {
    position: relative;
    z-index: 2;
}

.platform-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

/* 左侧手机展示区域 */
.app-showcase {
    position: relative;
    flex: 0 0 45%;
    display: flex;
    justify-content: center;
}

.phone-frame {
    width: 280px;
    height: 580px;
    background-color: #1a1a1a;
    border-radius: 32px;
    border: 12px solid #333;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.phone-header {
    padding: 15px 20px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #222;
}

.phone-time {
    font-size: 14px;
    font-weight: 500;
}

.phone-icons {
    display: flex;
    gap: 5px;
    font-size: 14px;
}

.phone-screen {
    padding: 15px;
    height: calc(100% - 50px);
    overflow-y: auto;
}

/* 交易机器人界面 */
.robot-interface {
    height: 100%;
}

.robot-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.robot-title {
    font-size: 18px;
    font-weight: 600;
}

.robot-controls {
    display: flex;
    gap: 10px;
    font-size: 16px;
}

.robot-card {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 15px;
}

.robot-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.robot-card-tag {
    background-color: #ff6b6b;
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.robot-chart {
    height: 80px;
    position: relative;
    margin-bottom: 10px;
}

.chart-lines {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
}

.chart-line {
    position: absolute;
    bottom: 0;
    width: 2px;
    background-color: #4a9eff;
}

.chart-line.line-1 {
    left: 10%;
    height: 40%;
}

.chart-line.line-2 {
    left: 50%;
    height: 70%;
}

.chart-line.line-3 {
    right: 10%;
    height: 90%;
}

.robot-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.profit-rate {
    color: #4ade80;
    font-weight: 600;
}

.robot-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.robot-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.robot-item-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.robot-item-name {
    font-weight: 500;
}

.robot-item-profit {
    color: #4ade80;
    font-weight: 600;
}

.robot-item-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.robot-item-btn {
    background-color: #3b82f6;
    color: white;
    border: none;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

/* 悬浮交易卡片 */
.floating-card {
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    background-color: #1a1a1a;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 2;
}

.floating-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.close-icon {
    font-size: 12px;
    color: #666;
    cursor: pointer;
}

.price-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.price-info span:first-child {
    font-size: 20px;
    font-weight: 600;
}

.price-change {
    color: #4ade80;
    font-weight: 600;
}

.price-stats {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 15px;
    font-size: 12px;
    color: #999;
}

.trade-buttons {
    display: flex;
    gap: 8px;
}

.buy-btn, .sell-btn {
    flex: 1;
    border: none;
    padding: 8px 0;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
}

.buy-btn {
    background-color: #4ade80;
    color: black;
}

.sell-btn {
    background-color: #f43f5e;
    color: white;
}

/* 右侧文本区域 */
.platform-info {
    flex: 0 0 45%;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-tabs {
    display: flex;
    gap: 20px;
}

.tab-btn {
    background: none;
    border: none;
    color: #666;
    font-size: 16px;
    cursor: pointer;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s;
}

.tab-btn.active {
    color: white;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #3b82f6;
}

.info-title {
    font-size: 32px;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.feature-description {
    font-size: 14px;
    color: #999;
    margin: 0;
    line-height: 1.5;
}

.register-btn {
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: fit-content;
    transition: transform 0.3s, box-shadow 0.3s;
}

.register-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

/* 交互动画效果 */
/* 全局过渡设置 */
.expert-card,
.follow-btn,
.dot {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 卡片悬停增强效果 */
.expert-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 25px rgba(79, 195, 247, 0.15);
    border-color: rgba(79, 195, 247, 0.3);
    background-color: rgba(255, 255, 255, 0.08);
}

/* 页面加载渐入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 滚动触发的动画延迟 */
.expert-card:nth-child(1) {
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.expert-card:nth-child(2) {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.expert-card:nth-child(3) {
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.expert-card:nth-child(4) {
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.section-title {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.section-subtitle {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* 按钮点击微动画 */
.follow-btn:active {
    transform: scale(0.98);
}

/* 数据数值闪烁效果 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.stat-value.highlight {
    animation: pulse 2s ease-in-out infinite;
}

/* 头像悬停效果 */
.expert-avatar {
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.expert-card:hover .expert-avatar {
    transform: scale(1.05);
    border-color: #4FC3F7;
}

/* 分页指示器动画 */
.pagination-dots .dot {
    transition: all 0.3s ease;
}

.pagination-dots .dot.active {
    animation: pulse 1.5s ease-in-out infinite;
}

/* 图表动画增强 */
.roi-chart path {
    animation: dash 1.5s ease-out forwards, float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        stroke-width: 2;
        opacity: 1;
    }
    50% {
        stroke-width: 2.5;
        opacity: 0.9;
    }
}

/* 防止动画在打印时显示 */
@media print {
    * {
        animation: none !important;
        transition: none !important;
    }
}
/* 全局过渡设置 */
.tab-btn,
.robot-item-btn,
.buy-btn,
.sell-btn,
.register-btn,
.robot-item,
.phone-frame,
.floating-card {
    transition: all 0.3s ease;
}

/* 手机框架动画 */
.phone-frame {
    animation: phoneBounce 2s ease-in-out infinite alternate;
}

@keyframes phoneBounce {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-10px);
    }
}

/* 悬浮卡片动画 */
.floating-card {
    animation: floatCard 3s ease-in-out infinite;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(-50%) translateX(0);
    }
    50% {
        transform: translateY(-50%) translateX(5px);
    }
}

/* 图表动画 */
.chart-line {
    animation: growLine 1.5s ease-out;
}

@keyframes growLine {
    from {
        height: 0;
    }
}

.chart-line.line-1 {
    animation-delay: 0.2s;
}

.chart-line.line-2 {
    animation-delay: 0.4s;
}

.chart-line.line-3 {
    animation-delay: 0.6s;
}

/* 按钮悬停效果增强 */
.robot-item-btn:hover {
    background-color: #2563eb;
    transform: scale(1.05);
}

.buy-btn:hover {
    background-color: #22c55e;
    transform: translateY(-1px);
}

.sell-btn:hover {
    background-color: #ef4444;
    transform: translateY(-1px);
}

/* 卡片悬停效果 */
.robot-item:hover {
    background-color: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

/* 标签页切换效果 */
.tab-btn::after {
    transition: all 0.3s ease;
    transform: scaleX(0);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-btn:hover {
    color: #fff;
}

/* 特性项目动画 */
.feature-item {
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s;
}

.feature-item:hover::before {
    left: 100%;
}

/* 注册按钮动画增强 */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

.register-btn:hover {
    animation: pulse 1.5s infinite;
}

/* IE11 浏览器兼容性修复 */
/* Flexbox 兼容性 */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    /* IE11 特定修复 */
    .platform-content {
        display: -ms-flexbox;
        -ms-flex-align: center;
        -ms-flex-pack: justify;
    }
    
    .app-showcase {
        -ms-flex: 0 0 45%;
    }
    
    .platform-info {
        -ms-flex: 0 0 45%;
        display: -ms-flexbox;
        -ms-flex-direction: column;
        -ms-flex-line-pack: distribute;
    }
    
    .phone-header,
    .robot-header,
    .robot-card-header,
    .robot-card-footer,
    .robot-item-info,
    .robot-item-stats,
    .floating-card-header,
    .price-info,
    .trade-buttons {
        display: -ms-flexbox;
        -ms-flex-pack: justify;
        -ms-flex-align: center;
    }
    
    .robot-items,
    .feature-list {
        display: -ms-flexbox;
        -ms-flex-direction: column;
    }
    
    /* 渐变兼容性 */
    .robot-card {
        /* IE11 渐变语法 */
        background: #1e3c72;
        background: -ms-linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    }
    
    .register-btn {
        /* IE11 渐变语法 */
        background: #3b82f6;
        background: -ms-linear-gradient(135deg, #3b82f6, #60a5fa);
    }
    
    /* 过渡效果兼容性 */
    .tab-btn {
        transition: none; /* IE11 对某些过渡支持不好 */
    }
    
    .register-btn:hover {
        transform: none; /* 移除IE11支持不好的变换 */
    }
    
    /* 自定义属性兼容性 */
    .trading-platform-section::before {
        /* IE11 不支持 ::before 渐变，使用背景色代替 */
        background: rgba(10, 10, 30, 0.9);
    }
}

/* IE11 浏览器兼容性修复 */
/* Flexbox 兼容性 */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
    /* IE11 特定样式 */
    .section-header {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-direction: column;
        flex-direction: column;
        -ms-flex-align: center;
        align-items: center;
    }
    
    .expert-header {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-align: center;
        align-items: center;
    }
    
    .stat-item {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-pack: justify;
        justify-content: space-between;
        -ms-flex-align: center;
        align-items: center;
    }
    
    .chart-container {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-align: center;
        align-items: center;
        -ms-flex-pack: center;
        justify-content: center;
    }
    
    .section-footer {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-pack: center;
        justify-content: center;
    }
    
    .pagination-dots {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-align: center;
        align-items: center;
    }
    
    /* Grid 布局的 IE11 替代方案 */
    .experts-grid {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
        margin-right: -10px;
        margin-left: -10px;
    }
    
    .expert-card {
        -ms-flex: 0 0 25%;
        flex: 0 0 25%;
        max-width: 25%;
        padding-right: 10px;
        padding-left: 10px;
        margin-bottom: 20px;
    }
    
    /* 渐变背景兼容性 */
    .section-title::after {
        background: #4FC3F7; /* IE11 回退颜色 */
        background: -ms-linear-gradient(left, #4FC3F7, #2196F3);
    }
    
    .expert-card::before {
        background: #4FC3F7; /* IE11 回退颜色 */
        background: -ms-linear-gradient(left, #4FC3F7, #2196F3);
    }
    
    /* 移除不支持的动画和过渡效果 */
    .roi-chart path {
        stroke-dasharray: initial;
        stroke-dashoffset: initial;
        animation: none;
    }
    
    .follow-btn:hover {
        transform: none;
        box-shadow: none;
    }
    
    .dot.active,
    .dot:hover {
        transform: none;
    }
    
    /* IE11 特定的响应式调整 */
    @media (max-width: 1024px) {
        .expert-card {
            -ms-flex: 0 0 33.333333%;
            flex: 0 0 33.333333%;
            max-width: 33.333333%;
        }
    }
    
    @media (max-width: 768px) {
        .expert-card {
            -ms-flex: 0 0 50%;
            flex: 0 0 50%;
            max-width: 50%;
        }
    }
    
    @media (max-width: 480px) {
        .expert-card {
            -ms-flex: 0 0 100%;
            flex: 0 0 100%;
            max-width: 100%;
        }
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .platform-content {
        flex-direction: column;
        gap: 60px;
        padding: 0 20px;
    }
    
    .app-showcase {
        flex: none;
        width: 100%;
        max-width: 320px;
    }
    
    .platform-info {
        flex: none;
        width: 100%;
        text-align: center;
        align-items: center;
    }
    
    .floating-card {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-top: 20px;
        width: 280px;
    }
    
    .info-title {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .trading-platform-section {
        padding: 80px 0;
    }
    
    .phone-frame {
        width: 260px;
        height: 520px;
        border-width: 10px;
    }
    
    .info-title {
        font-size: 24px;
    }
    
    .feature-title {
        font-size: 18px;
    }
    
    .feature-description {
        font-size: 13px;
    }
    
    .register-btn {
        padding: 10px 25px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .trading-platform-section {
        padding: 60px 0;
    }
    
    .platform-content {
        gap: 40px;
        padding: 0 15px;
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
        border-width: 8px;
    }
    
    .robot-card {
        padding: 12px;
    }
    
    .robot-item {
        padding: 10px;
    }
    
    .floating-card {
        width: 240px;
        padding: 12px;
    }
    
    .info-tabs {
        gap: 15px;
    }
    
    .tab-btn {
        font-size: 14px;
    }
    
    .info-title {
        font-size: 22px;
    }
    
    .feature-list {
        gap: 15px;
    }
    
    .register-btn {
        width: 100%;
        max-width: 200px;
    }
}

/* 交易跟单展示区域 */
.copy-trading-section {
    background-color: #000;
    color: #fff;
    padding: 60px 0;
    position: relative;
}

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

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #fff;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    /* background: linear-gradient(90deg, #4FC3F7, #2196F3); */
    border-radius: 3px;
}

.section-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    max-width: 700px;
    margin: 0 auto;
}

/* 专家卡片网格布局 */
.experts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

/* 专家卡片基础样式 */
.expert-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.expert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4FC3F7, #2196F3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.expert-card:hover::before {
    opacity: 1;
}

/* 专家卡片头部信息 */
.expert-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.expert-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.expert-info {
    flex: 1;
}

.expert-name {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin: 0 0 4px 0;
}

.expert-rating {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* 专家统计数据 */
.expert-stats {
    margin-bottom: 20px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.stat-item:last-child {
    margin-bottom: 0;
}

.stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.stat-value {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
}

.stat-value.highlight {
    color: #4FC3F7;
    font-size: 16px;
}

/* 图表容器 */
.chart-container {
    height: 40px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background-color: rgba(79, 195, 247, 0.05);
    border-radius: 6px;
    padding: 8px;
}

/* SVG图表样式 */
.roi-chart {
    width: 100%;
    height: 100%;
}

.roi-chart path {
    fill: none;
    stroke: #4FC3F7;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    /* 添加动画效果 */
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: dash 1.5s ease-out forwards;
}

/* 图表动画 */
@keyframes dash {
    to {
        stroke-dashoffset: 0;
    }
}

/* 图表网格线（可选） */
.chart-container::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: rgba(79, 195, 247, 0.2);
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

/* 增强数据可读性的视觉提示 */
.expert-stats .stat-item {
    position: relative;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.05);
    margin-top: 12px;
}

.stat-item:last-child::before {
    display: none;
}

/* 跟单按钮 */
.follow-btn {
    width: 100%;
    padding: 12px;
    background-color: transparent;
    border: 1px solid #4FC3F7;
    color: #4FC3F7;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.follow-btn:hover {
    background-color: #4FC3F7;
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 195, 247, 0.4);
}

/* 分页指示器 */
.section-footer {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.pagination-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active,
.dot:hover {
    background-color: #4FC3F7;
    transform: scale(1.2);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .experts-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .section-title {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .copy-trading-section {
        padding: 40px 0;
    }
    
    .experts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 14px;
    }
    
    .expert-card {
        padding: 20px;
    }
    
    .expert-avatar {
        width: 40px;
        height: 40px;
    }
    
    .expert-name {
        font-size: 14px;
    }
    
    .stat-value.highlight {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .experts-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 13px;
    }
    
    .copy-trading-section .container {
        padding: 0 15px;
    }
    
    .expert-card {
        padding: 16px;
    }
    
    .follow-btn {
        padding: 10px;
        font-size: 13px;
    }
    
    .chart-container {
        height: 35px;
    }
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: #00f2ea;
    color: #000;
    transform: translateY(-3px);
}

/* 加密货币排行榜样式 */
.cryptocurrency-ranking {
    background-color: #000;
    padding: 40px 0;
}

.cryptocurrency-ranking .container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.ranking-tabs {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    justify-content: center;
    margin: 0 auto 30px;
    width: 100%;
    max-width: 1400px;
    /* IE11 flex布局兼容 */
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
}

.tab {
    padding: 10px 30px;
    margin: 0 10px;
    color: #888;
    font-size: 16px;
    cursor: pointer;
    position: relative;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.tab.active {
    color: #fff;
    font-weight: 600;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #00f2ea 0%, #4787ff 100%);
    /* IE11 渐变兼容 */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#00f2ea, endColorstr=#4787ff, GradientType=1);
}

.ranking-table {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 20px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
    /* 保持与活动卡片一致的阴影效果 */
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.table-header {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    background-color: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 15px 0;
    /* IE11 flex布局兼容 */
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
}

.header-item {
    flex: 1;
    text-align: center;
    color: #888;
    font-size: 16px; /* 增大字体 */
    padding: 0 15px;
    font-weight: 500;
}

.header-item:first-child {
    flex: 2;
    text-align: center; /* 修改为居中 */
}

.table-body {
    width: 100%;
}

.table-row {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 15px 0;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    /* IE11 flex布局兼容 */
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    min-height: 80px;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
}

.table-row:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.table-row:last-child {
    border-bottom: none;
}

.table-cell {
    flex: 1;
    text-align: center;
    color: #fff;
    font-size: 16px; /* 增大字体 */
    padding: 0 15px;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    /* IE11 flex布局兼容 */
    -webkit-box-align: center;
    -webkit-box-pack: center;
}

.table-cell.name-cell {
    flex: 2;
    text-align: center; /* 修改为居中 */
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    /* IE11 flex布局兼容 */
    -webkit-box-pack: center;
    min-height: 80px; /* 与table-row保持一致高度 */
    padding: 0;
}

.crypto-info {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    /* IE11 flex布局兼容 */
    -webkit-box-align: center;
    -webkit-box-pack: center;
    min-height: 60px;
    margin: 0 auto;
    width: 180px; /* 固定宽度确保一致性 */
    position: relative;
}

.crypto-logo {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    margin-right: 12px;
    object-fit: contain;
    display: block;
    vertical-align: middle;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 2px;
    box-sizing: border-box;
    flex-shrink: 0; /* 防止图片被压缩 */
    position: relative;
    top: 0;
    left: 0;
}

/* 确保所有图片容器精确对齐 */
.crypto-info > .crypto-logo {
    margin: 0 12px 0 0;
    vertical-align: middle;
    line-height: 0; /* 消除行高影响 */
}

.crypto-details {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    /* IE11 flex布局兼容 */
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    text-align: center;
    flex-shrink: 0;
    min-width: 0; /* 防止文字溢出 */
}

.crypto-symbol {
    font-size: 18px; /* 增大字体 */
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}

.crypto-name {
    font-size: 16px; /* 增大字体 */
    color: #888;
}

.price-down {
    color: #ff4d4f;
    font-weight: 500;
}

.price-up {
    color: #52c41a;
    font-weight: 500;
}

.detail-btn {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    font-weight: 500;
}

.detail-btn:hover {
    background-color: rgba(0, 242, 234, 0.2);
    border-color: #00f2ea;
    color: #00f2ea;
}

.view-all {
    text-align: center;
    margin: 20px auto 0;
    width: 100%;
    max-width: 1400px;
}

.view-all-link {
    color: #00f2ea;
    font-size: 16px;
    text-decoration: none;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    font-weight: 500;
}

.view-all-link:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .activities-grid {
        grid-template-columns: repeat(2, 1fr);
        /* 浏览器兼容性 */
        -ms-grid-columns: 1fr 24px 1fr;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        /* IE11 flex布局兼容 */
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-form {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    /* 排行榜响应式 */
    .header-item,
    .table-cell {
        padding: 0 10px;
        font-size: 14px;
    }
    
    .crypto-symbol {
        font-size: 16px;
    }
    
    .crypto-name {
        font-size: 14px;
    }
    
    .detail-btn,
    .view-all-link {
        font-size: 14px;
    }
    
    .crypto-logo {
        width: 24px;
        height: 24px;
        margin-right: 8px;
    }
    
    .crypto-symbol {
        font-size: 14px;
    }
    
    .crypto-name {
        font-size: 12px;
    }
}

@media (max-width: 768px) {
    .cryptocurrency-ranking {
        padding: 30px 0;
    }
    
    .tab {
        padding: 8px 20px;
        font-size: 14px;
        margin: 0 5px;
    }
    
    .header-item,
    .table-cell {
        padding: 0 8px;
        font-size: 12px;
    }
    
    .detail-btn {
        padding: 4px 12px;
        font-size: 12px;
    }
    
    .crypto-logo {
        width: 20px;
        height: 20px;
        margin-right: 6px;
    }
    
    .crypto-symbol {
        font-size: 13px;
    }
    
    .crypto-name {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .ranking-tabs {
        flex-wrap: wrap;
        /* IE11 flex布局兼容 */
        -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
    }
    
    .tab {
        padding: 6px 16px;
        font-size: 13px;
        margin: 5px;
    }
    
    .ranking-table {
        border-radius: 6px;
    }
    
    .header-item,
    .table-cell {
        padding: 0 6px;
        font-size: 11px;
    }
    
    .table-header,
    .table-row {
        padding: 12px 0;
    }
    
    .detail-btn {
        padding: 3px 10px;
        font-size: 11px;
    }
    
    .view-all-link {
        font-size: 13px;
    }
    
    /* IE11 小屏幕兼容性 */
    @media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
        .header-item {
            width: 17%;
        }
        
        .header-item:first-child {
            width: 32%;
        }
        
        .table-cell {
            width: 17%;
        }
        
        .table-cell.name-cell {
            width: 32%;
        }
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .navbar-right {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .activities-grid {
        grid-template-columns: 1fr;
        /* 浏览器兼容性 */
        -ms-grid-columns: 1fr;
    }
    
    .hero-title {
        font-size: 32px;
        /* 字体渲染优化 */
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    .hero-form {
        flex-direction: column;
        /* IE11 flex布局兼容 */
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
    }
    
    .form-btn {
        width: 100%;
        /* 确保按钮在小屏幕上有足够的点击区域 */
        min-height: 44px;
        line-height: 44px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .navbar {
        padding: 12px 0;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .logo img {
        width: 102px;
        height: 28px;
    }
}