* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "微软雅黑", sans-serif;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.header-nav {
    width: 100%;
    background-color: #0052d9;
    height: 65px;
    line-height: 65px;
}
.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-text {
    font-size: 24px;
    color: #fff;
    font-weight: bold;
}
.nav-menu {
    display: flex;
    gap: 40px;
}
.nav-menu li a {
    color: #fff;
    font-size: 16px;
    transition: 0.3s;
}
.nav-menu li a:hover {
    color: #ffd04b;
}

/* 横幅样式 */
.banner {
    width: 100%;
    height: 380px;
    background: linear-gradient(120deg, #0052d9, #4096ff);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
}
.banner h1 {
    font-size: 40px;
    margin-bottom: 15px;
}
.banner p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}
.btn-consult {
    padding: 12px 40px;
    background-color: #ff7d00;
    color: #fff;
    border-radius: 6px;
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: 0.3s;
}
.btn-consult:hover {
    background-color: #e67000;
}

/* 通用标题 */
.common-title {
    text-align: center;
    font-size: 32px;
    color: #333;
    margin: 60px 0 40px;
}

/* 优势模块 电脑端保持一行4个 */
.advantage-list {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    margin-bottom: 80px;
}
.adv-item {
    flex: 1;
    min-width: 240px;
    padding: 30px 20px;
    border: 1px solid #eeeeee;
    border-radius: 10px;
    text-align: center;
    transition: 0.3s;
}
.adv-item:hover {
    box-shadow: 0 0 15px #f0f0f0;
}
.adv-item h3 {
    color: #0052d9;
    margin: 15px 0;
}
.adv-item p {
    color: #666;
    line-height: 1.7;
}

/* 套餐卡片 */
.package-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 80px;
    justify-content: center;
}
.package-item {
    width: 370px;
    max-width: 100%;
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
}
.package-item h3 {
    color: #0052d9;
    font-size: 22px;
    margin-bottom: 15px;
}
.package-item p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* 号码展示 */
.number-show-area {
    background-color: #f8f9fa;
    padding: 40px 0 70px;
}
.number-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}
.number-item {
    width: 200px;
    max-width: 100%;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    text-align: center;
}
.number-item .num {
    font-size: 20px;
    font-weight: bold;
    color: #0052d9;
    margin-bottom: 10px;
}
.number-item .tip {
    font-size: 12px;
    color: #999;
}

/* 预约表单 */
.form-box {
    width: 650px;
    max-width: 100%;
    margin: 0 auto 80px;
    padding: 0 15px;
}
.form-item {
    margin-bottom: 22px;
}
.form-item label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-size: 15px;
}
.form-item input,
.form-item textarea {
    width: 100%;
    padding: 13px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    outline: none;
}
.form-item textarea {
    resize: none;
}

/* 底部 */
.footer {
    width: 100%;
    background-color: #222;
    color: #aaa;
    text-align: center;
    padding: 40px 0;
    font-size: 14px;
}
.footer p {
    margin: 8px 0;
}

/* ==========在线客服弹窗样式========== */
.chat-float-btn{
    position: fixed;
    right:16px;
    bottom:30px;
    width:50px;
    height:50px;
    border-radius:50%;
    background:#0052d9;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:999;
}
.chat-window{
    position: fixed;
    right:16px;
    bottom:90px;
    width:340px;
    max-width: calc(100vw - 32px);
    height:460px;
    background:#fff;
    border-radius:10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index:998;
    display:none;
    overflow:hidden;
}
.chat-header{
    background:#0052d9;
    color:#fff;
    padding:10px 14px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}
.chat-content{
    height:calc(100% - 95px);
    padding:12px;
    overflow-y:auto;
    background:#f7f8fa;
}
.chat-input-area{
    display:flex;
    gap:8px;
    padding:10px;
    border-top:1px solid #eee;
}
.chat-input-area input{
    flex:1;
    padding:8px 10px;
    border:1px solid #ddd;
    border-radius:4px;
    outline:none;
}
.chat-input-area button{
    padding:0 14px;
    background:#0052d9;
    color:#fff;
    border:none;
    border-radius:4px;
}

@media screen and (max-width:768px){
    .logo-text{
        font-size:18px;
    }
    .header-nav {
        height: auto !important;
        line-height: inherit !important;
        padding:10px 0;
    }
    .nav-wrap {
        flex-direction: column;
        gap:12px;
    }
    .nav-menu{
        gap:15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .nav-menu li a{
        font-size:14px;
    }
    .banner{
        height:280px;
    }
    .banner h1{
        font-size:26px;
    }
    .banner p{
        font-size:15px;
    }
    .common-title{
        font-size:24px;
        margin:40px 0 25px;
    }
}