@media (min-width: 769px) {
  .phoneDisplay{display: none;}/* 电脑版不显示该内容 */
}
@media (max-width: 768px) {
  .pcDisplay{display: none;}/* 手机版不显示该内容 */
  * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
html {
  -webkit-text-size-adjust: 100%;/* 防止字号放大 */
}
 body {
            font-family: "Microsoft Yahei";font-size: 1rem;
        }
h1 { font-size: 2rem; }  /* 32px */
h2 { font-size: 1.75rem; font-weight: 700;} /* 28px */
h3 { font-size: 1.5rem; }  /* 24px */
h4 { font-size: 1.25rem; } /* 20px */
h5 { font-size: 1.125rem; } /* 18px */
h6 { font-size: 1.3rem; }    /* 16px */

p, li, a {
  font-size: 15px; /* 16px */
  line-height: 1.6; /* 推荐行高 */
}
        .navbar-phone {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: #fff;
            padding: 12px 15px;
            position: relative;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        .logo-phone {
            color: white;
            font-size: 22px;
            font-weight: bold;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
        }
        .menu-toggle-phone {
            font-size: 26px;
            cursor: pointer;
            padding: 5px;
            color: #b71c1c;
        }
        .dropdown-menu-phone {
            position: absolute;
            top: 100%;
            right: 0;
            background-color: #b71c1c;
            width: 220px;
            display: none;
            border-radius: 0 0 0 8px;
            box-shadow: -2px 2px 5px rgba(0,0,0,0.2);
            z-index: 1000;
        }
        .dropdown-menu-phone.active {
            display: block;
        }
        .dropdown-menu-phone li {
            list-style: none;
            position: relative;
        }
        .dropdown-menu-phone li a {
            display: block;
            color: white;
            padding: 14px 18px;
            text-decoration: none;
            border-bottom: 1px solid #d32f2f;
            transition: all 0.3s ease;
            font-size: 16px;
        }
        .dropdown-menu-phone li a:hover {
            background-color: #c62828;
            padding-left: 22px;
        }
        .submenu-phone {
            display: none;
            background-color: #c62828;
            width: 220px;
            border-radius: 0 8px 8px 8px;
            box-shadow: 2px 2px 5px rgba(0,0,0,0.2);
        }
        .dropdown-menu-phone li.active > .submenu-phone {
            display: block;
        }
        
        .submenu-phone {
                position: static;
                width: auto;
                margin-left: 15px;
                border-radius: 0;
                box-shadow: none;
                border-left: 2px solid #ff6659;
            }
            .dropdown-menu-phone li.active > .submenu {
                display: block;
            }
    /*内页正式内容*/
    .bottom-phone-30{margin-bottom: 30px;}
    .banner-sub-phone img{width:100%; min-height: 200px;}
    .about-info-phone{margin: 30px 0; padding: 10px 20px; background-color: #0050F0;}
    .about-info-phone h2{color: #fff;}
    .about-content-phone{margin-bottom: 30px; padding: 0px 20px;}
    .about-content-phone img{width:100%;}

    /*首页内容*/
    .banner-phone img{width:100%; min-height: 200px;}
    .index-TopInfo{ padding: 20px 0;text-align: center;}
    .index-TopInfo p{text-align: center; font-size: 1.5rem;}
    .index-TopInfo h4{font-size: 1.8rem; margin-bottom: 15px;}

    .index-Title{padding: 10px 20px;font-size: 2rem; font-weight: 700; }
    .index-pic img{padding: 0px 20px;width:100%;}
    .index-Content{padding: 10px 20px; font-size: 15px; line-height: 28px;}

    .copyright,.copyright a{ background-color: #0050F0; color: #fff; line-height: 40px; height: 40px; text-align: center; font-size: 1.5rem; font-weight: 700; letter-spacing: 1px;}
}