/* 重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-align: center;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    color: #2c3e50;
    margin-bottom: 10px;
}

header p {
    font-size: 1.1em;
    color: #7f8c8d;
    margin-bottom: 30px;
}

header .icon {
    width: 60px;
    border-radius: 10px;
}

.download-btn {
    display: inline-block;
    margin: 10px 0;
    padding: 14px 30px;
    background: #2980b9;
    color: white;
    font-size: 1em;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
    text-decoration: none;
}

.download-btn:hover {
    background: #1a5f8a;
    transform: translateY(-2px);
}

.stats {
    margin-top: 20px;
    font-size: 0.95em;
    color: #95a5a6;
}

footer {
    margin-top: 40px;
    font-size: 0.9em;
    color: #bdc3c7;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    header h1 {
        font-size: 2em;
    }

    .download-btn {
        width: 100%;
        padding: 16px;
    }
}