* {
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    /* 处理文本溢出 */
    word-wrap: break-word !important;
    /* 允许再单词内换行 */
    word-break: break-all;
    color: #777;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    color: #4b4b4b;
}

h3 {
    font-size: 1.25em
}

h4 {
    font-size: 1.125em
}

a {
    color: #3b8bba;
    text-decoration: none
}

.main {
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

.header {
    font-family: "Raleway", "Helvetica Neue", Helvetica, Arial, sans-serif;
    max-width: 768px;
    margin: 0 auto;
    padding: 1em;
    text-align: center;
    border-bottom: 1px solid #eee;
    background: #fff;
    letter-spacing: .05em;
}

.header h1 {
    font-size: 300%;
    font-weight: 100;
    margin: 0
}

.header h2 {
    font-size: 125%;
    font-weight: 100;
    line-height: 1.5;
    margin: 0;
    color: #666;
    letter-spacing: -0.02em
}

.content {
    margin: 20px auto;
    padding-left: 1em;
    padding-right: 1em;
    max-width: 768px;
    flex: 1;
}

.legend {
    margin-top: 20px;
}

.footer {
    border-top: 1px solid #eee;
    padding: 1.1429em;
    color: #777;
    background: #fafafa;
    line-height: 1.6;
    text-align: center;
}

.legal-license {
    text-align: left;
}

.legal-copyright {
    text-align: right;
}

@media screen and (max-width: 35.5em) {
    .legal-license, .legal-copyright {
        width: 100%;
        text-align: center;
        margin: 0;
    }
}

.donate {
    width: 100%;
    margin: 20px auto;
}