/* 定义系统字体栈变量 */
:root {
    --system-fonts: -apple-system, BlinkMacSystemFont,
    'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Helvetica,
    Arial, sans-serif, 'Apple Color Emoji',
    'Segoe UI Emoji', 'Segoe UI Symbol';
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background: #f1f4f9;
    /* 先使用系统字体，字体加载后通过JS添加类名切换 */
    font-family: var(--system-fonts);
    -webkit-font-smoothing: antialiased;
    font-weight: 400;
    overflow: auto;
}

/* 字体加载完成后应用的类 */
body.fonts-loaded {
    font-family: 'AlibabaPuHuiTiR', var(--system-fonts);
}



img {
    user-select: none;
}

button {
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    background: none;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
}

h1,h2,h3,h4,h5,p{
    margin: 0;
    padding: 0;
    font-weight: 500;
}

input {
    background: none;
    outline: none;
    border: 0px;
}

input[type=search]{
    -moz-appearance: none;/* older firefox */
    -webkit-appearance: none; /* safari, chrome, edge and ie mobile */
    appearance: none; /* rest */
}

/*文本行数  */
.text1line {
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow:ellipsis;
}
.text2line {
    display: -webkit-box;
    word-break: break-all;
    -webkit-box-orient: vertical;
    -webkit-line-clamp:2;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: normal;
}
.text3line {
    display: -webkit-box;
    word-break: break-all;
    -webkit-box-orient: vertical;
    -webkit-line-clamp:3;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: normal;
}
.text4line {
    display: -webkit-box;
    word-break: break-all;
    -webkit-box-orient: vertical;
    -webkit-line-clamp:4;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: normal;
}
.text5line {
    display: -webkit-box;
    word-break: break-all;
    -webkit-box-orient: vertical;
    -webkit-line-clamp:5;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: normal;
}

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

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

.text-align-center {
    text-align: center;
}

.mg-top-10 {
    margin-top: 10px;
}

.mg-bottom-10 {
    margin-bottom: 10px;
}

/* 修改字体声明，添加font-display和优化格式 */
@font-face {
    font-family: 'AlibabaPuHuiTiR';
    /* 建议优化为woff2格式并放在public文件夹 */
    src: url('./../fonts/Alibaba-PuHuiTi-Regular.woff2') format('woff2'),
    url('./../fonts/Alibaba-PuHuiTi-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap; /* 关键优化 */
    /*
   swap: 立即显示备用字体，加载后替换（推荐）
   optional: 短时间阻塞，然后决定是否替换
   fallback: 短时间空白，然后替换
   block: 阻塞直到加载完成（不要用）
 */
}
@font-face {
    font-family: 'AlibabaPuHuiTiM';
    src: url('./../fonts/Alibaba-PuHuiTi-Medium.woff2') format('woff2'),
    url('./../fonts/Alibaba-PuHuiTi-Medium.otf') format('opentype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'AlibabaPuHuiTiB';
    src: url('./../fonts/Alibaba-PuHuiTi-Bold.woff2') format('woff2'),
    url('./../fonts/Alibaba-PuHuiTi-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* 移动端特殊优化 */
@media (max-width: 767px) {
    body {
        /* 移动端可考虑默认不使用自定义字体，或只对标题使用 */
    }

    /* 移动端只对重要元素使用自定义字体 */
    h1, h2, h3, .important-title {
        font-family: 'AlibabaPuHuiTiR', var(--system-fonts);
    }
}