:root {
    /*全局颜色更改*/
    --bai: #ffffff;
    --sc01: #e7383a;
    --sc02: #474747;
    --sc03: #f75e60;
    --sc04: #919191;
}

html {
    overflow-x: hidden;
    overflow-y: scroll;
    box-sizing: border-box;
    scroll-behavior: smooth;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}

body {
    font-family: Arial, sans-serif;
    margin: 0 auto;
    box-sizing: border-box;
}

.daohang_box {
    width: 100%;
    height: 80px;
    top: 0;
    background: var(--bai);
    box-shadow: 0 5px 15px rgba(36, 7, 7, 0.1);
    position: relative;
    box-sizing: border-box;
    z-index: 9999;
    margin-bottom: 50px;
}

.daohang_cent {
    width: 720px;
    height: 100%;
    padding: 0 20px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: top;
    position: relative;
    box-sizing: border-box;
    z-index: 9998;
}

.logo_box {
    min-width: 100px;
    max-width: 200px;
    min-height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 0;
    flex-shrink: 0;
    position: relative;
    z-index: 9999;
}

.logo_box a {
    width: 100%;
    height: 100%;
    padding: 15px 0;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    font-size: 0;
}

.logo_box a img {
    transition: all 0.3s;
}

.logo_box:hover a img {
    transform: scale(1.05);
}

.lxfs {
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    padding: 10px;
}

.lxfs dd {
    width: 20px;
    height: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 5px;
}

.lxfs a {
    margin-bottom: 2px;
    color: var(--sc02);
    font-size: 18px;
}

.lxfs a:hover {
    color: var(--sc01);
}

.cent {
    width: 720px;
    padding: 0 20px;
    margin: 0 auto;
    box-sizing: border-box;
}


.bt_box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.bt_txt {
    color: var(--sc02);
}

.refresh-btn {
    min-width: 100px;
    background: var(--sc01);
    color: var(--bai);
    padding: 5px 10px;
    border-radius: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.refresh-btn i {
    width: 16px;
    height: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 5px;
}

.wxts {
    color: var(--sc04);
    margin-bottom: 20px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.wxts dd {
    width: 16px;
    height: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 5px;
}

.progress {
    height: 20px;
    background: #f0f0f0;
    border-radius: 5px;
    margin: 20px 0;
}

.progress-bar {
    height: 100%;
    background: #4CAF50;
    border-radius: 5px;
    width: 0%;
    transition: width 0.3s;
}

.cdn-item {
    display: flex;
    align-items: center;
    margin: 10px 0;
    background: #f0f0f0;
    color: var(--sc02);
    border-radius: 5px;
    padding: 10px 20px;
}

.speed {
    width: 80px;
    text-align: right;
    margin-right: 20px;
}

.fast {
    color: #2ecc71;
}

.medium {
    color: #f39c12;
}

.slow {
    color: #e74c3c;
}

.visit-btn {
    padding: 5px 10px;
    background: var(--sc01);
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

.visit-btn:hover {
    background: var(--sc03);
}

@media only screen and (max-width: 720px) {
    .daohang_cent {
        width: 100%;
    }

    .cent {
        width: 100%;
    }
}