html,
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
}

h1 {
    font-size: 36px;
}

.logo {
    max-width: 100px;
    height: auto;
    border-radius: 15px;
}

.logo-big {
    max-width: 150px;
    height: auto;
    border-radius: 15px;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

p {
    font-size: 18px;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

.footer-text {
    font-size: 13px;
    color: #aaa;
}

.footer-link {
    color: #aaa;
    text-decoration: none;
    font-size: 13px;
}

.footer-link:hover {
    color: #fff;
}

a {
    color: orange;
    text-decoration: none;
    font-size: 16px;
}

a:hover {
    text-decoration: underline;
}


/* 微信浮层遮罩 */
.wechat-mask {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 9999;
}

.wechat-mask-content {
    position: absolute;
    top: 20px;
    right: 20px;
    text-align: right;
    color: #fff;
    font-size: 18px;
    line-height: 1.8;
}

.wechat-mask-content .arrow {
    font-size: 60px;
    margin-bottom: 10px;
    display: inline-block;
    animation: bounceArrow 1s infinite;
}

.wechat-mask-content .tip-text {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 16px 24px;
    display: inline-block;
    text-align: left;
    font-size: 16px;
    line-height: 2;
}

.wechat-mask-content .tip-text strong {
    color: #ffd700;
    font-size: 18px;
}