* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    background: linear-gradient(135deg, #f0f5ff 0%, #e6f0ff 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
    -webkit-text-size-adjust: 100% !important;
    text-size-adjust: 100% !important;
    -moz-text-size-adjust: 100% !important;
}
/* 跑马灯动画 */
.ticker-container {
    height: 24px;
    overflow: hidden;
}
#ticker {
    transition: all 0.5s ease;
}
/* 实际用到的工具类 */
.relative{position:relative}
.absolute{position:absolute}
.inset-0{inset:0px}
.flex{display:flex}
.h-2{height:0.5rem}
.w-2{width:0.5rem}
.flex-1{flex:1 1 0%}
.items-center{align-items:center}
.gap-3{gap:0.75rem}
.rounded-xl{border-radius:0.75rem}
.rounded-full{border-radius:9999px}
.bg-gray-50{--tw-bg-opacity:1;background-color:rgb(249 250 251)}
.bg-green-500{--tw-bg-opacity:1;background-color:rgb(34 197 94)}
.p-3{padding:0.75rem}
.mb-6{margin-bottom:1.5rem}
.text-sm{font-size:0.875rem;line-height:1.25rem}
.text-gray-500{--tw-text-opacity:1;color:rgb(107 114 128)}
.text-left{text-align:left}

/* 动画 */
@keyframes ping{75%,100%{transform:scale(2);opacity:0}}
.animate-ping{animation:ping 1s cubic-bezier(0,0,0.2,1) infinite}
.container {
    max-width: 900px;
    width: 100%;
    text-align: center;
    padding: 25px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

header {
    margin-bottom: 25px;
}

header h1 {
    font-size: 2.2rem;
    color: #2c3e50;
    font-weight: 700;
    margin-bottom: 8px;
}

header p {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}

.channels-container {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin: 25px 0;
}

.channel-card {
    flex: 1;
    background: white;
    border-radius: 12px;
    padding: 25px 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    max-width: 380px;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.channel-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.channel-icon {
    font-size: 40px;
    margin-bottom: 15px;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    border-radius: 50%;
}

.channel-card:nth-child(1) .channel-icon {
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
}

.channel-card:nth-child(2) .channel-icon {
    background: rgba(46, 204, 113, 0.1);
    color: #2ecc71;
}

.channel-card h2 {
    font-size: 1.6rem;
    margin-bottom: 10px;
    color: #2c3e50;
    font-weight: 600;
}

.channel-description {
    font-size: 1rem;
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.5;
    padding: 0 10px;
}

.btn {
    display: block;
    padding: 12px 0;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    width: 100%;
    position: relative;
    cursor: pointer;
}

.btn-channel1 {
    background: #3498db;
    color: white;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.btn-channel1:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.btn-channel2 {
    background: #2ecc71;
    color: white;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
}

.btn-channel2:hover {
    background: #27ae60;
    transform: translateY(-2px);
}

footer {
    margin-top: 30px;
    color: #95a5a6;
    font-size: 0.9rem;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .channels-container {
        flex-direction: column;
        gap: 20px;
        margin: 20px 0;
    }
    
    .channel-card {
        width: 100%;
        max-width: 100%;
        padding: 20px 15px;
    }
    
    header h1 {
        font-size: 1.9rem;
    }
    
    header p {
        font-size: 1rem;
    }
    
    .container {
        padding: 20px 15px;
    }
    
    .channel-icon {
        width: 60px;
        height: 60px;
        font-size: 32px;
        margin-bottom: 12px;
    }
    
    .channel-card h2 {
        font-size: 1.5rem;
    }
    
    .channel-description {
        font-size: 0.95rem;
        margin-bottom: 15px;
    }
    
    .btn {
        padding: 10px 0;
        font-size: 1rem;
    }
}

/* 隐藏的文本区域用于复制 */
#copy-area {
    position: absolute;
    left: -9999px;
    opacity: 0;
}