*{margin:0;padding:0;box-sizing:border-box;}
body{
    font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color:#222;
    font-size:14px;
    line-height:1.8;
    background:#f8fafc;
}
a{text-decoration:none;color:#222;transition:all 0.2s;}
ul,li{list-style:none;}
img{max-width:100%;height:auto;}
.container{width:1200px;margin:0 auto;padding:0 15px;}
.bg-f5{background:#f1f5f9;}

/* 头部导航 纯白实体底色，无磨砂毛玻璃 */
.header{height:80px;line-height:80px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,0.06);position:sticky;top:0;z-index:999;border-bottom:none;}
.header .container{display:flex;justify-content:space-between;align-items:center;gap:30px;}
/* Logo 图片+文字同行，不撑高行高 */
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;line-height:1;}
.logo img{height:50px;width:auto;max-width:200px;display:block;object-fit:contain;vertical-align:middle;}
.logo-text{font-size:24px;font-weight:600;color:#ec4899;line-height:1;letter-spacing:0.5px;}
/* 导航菜单 */
.nav ul{display:flex;gap:35px;margin:0;padding:0;}
.nav li a{font-size:15px;color:#333;font-weight:400;}
.nav li a.active{color:#ec4899;font-weight:600;}
.nav li a:hover{color:#ec4899;}
/* 头部预约按钮 登录页同款洋红色 #d847a0 */
.tel-btn{
    background:#d847a0;
    color:#fff;
    padding:8px 24px;
    border-radius:30px;
    font-weight:500;
    box-shadow:0 3px 10px rgba(37, 99, 235, 0.2);
    border:none;
    transition:background 0.2s;
}
.tel-btn:hover{background:#1d4ed8;box-shadow:0 4px 14px rgba(37, 99, 235, 0.3);}

/* Banner 渐变保留原图紫粉橙绿过渡，无毛玻璃 */
.banner{
    width:100%;
    height:500px;
    overflow:hidden;
    position:relative;
    background:linear-gradient(135deg, #a855f7 0%, #ec4899 30%, #f59e0b 60%, #10b981 100%) !important;
}
.banner-item{width:100%;height:100%;position:absolute;left:0;top:0;opacity:0;transition:opacity 0.6s ease;}
.banner-item.active{opacity:1;z-index:2;}
.banner-text{position:absolute;left:10%;top:50%;transform:translateY(-50%);color:#fff;z-index:3;}
.banner-text p{font-size:18px;margin-bottom:30px;opacity:0.95;max-width:600px;}
/* Banner按钮：透明边框浅透白 */
.btn{
    display:inline-block;
    background:rgba(255,255,255,0.12);
    color:#fff;
    padding:12px 32px;
    border-radius:30px;
    transition:all 0.3s;
    border:1px solid rgba(255,255,255,0.35);
}
.btn:hover{background:rgba(255,255,255,0.22);color:#fff;}

/* 通用板块标题 渐变原生柔和蜜桃红 #ec4899 */
.title-head{text-align:center;margin-bottom:50px;}
.title-head h2{font-size:32px;color:#ec4899;margin-bottom:10px;font-weight:600;}
.title-head p{color:#64748b;font-size:15px;}

/* 首页关于模块 */
.about-index{padding:80px 0;}
.about-index .row{display:flex;align-items:center;gap:40px;}
.about-index .col-left{width:50%;}
.about-index .col-right{width:50%;}
.about-index h2{font-size:28px;margin-bottom:20px;color:#ec4899;font-weight:600;}
.about-index p{color:#475569;margin-bottom:20px;font-size:15px;line-height:1.9;}
.data-box{display:flex;gap:20px;margin:25px 0;flex-wrap:wrap;}
.data-box span{
    display:inline-block;
    padding:8px 18px;
    background:rgba(236, 72, 153, 0.08);
    border-radius:6px;
    color:#ec4899;
    font-weight:500;
    border:1px solid rgba(236, 72, 153, 0.15);
}

/* 服务卡片 纯白实体，无磨砂blur */
.service-index{padding:80px 0;}
.service-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.service-item{
    background:#fff;
    padding:32px;
    border-radius:12px;
    box-shadow:0 3px 15px rgba(0,0,0,0.04);
    transition:all 0.3s;
}
.service-item:hover{transform:translateY(-8px);box-shadow:0 10px 30px rgba(236, 72, 153, 0.12);}
.service-item h3{font-size:18px;color:#ec4899;margin-bottom:15px;font-weight:600;}
.service-item p{color:#64748b;margin-bottom:15px;line-height:1.8;}
.service-item a{color:#2563eb;font-weight:500;}
.service-item a:hover{color:#1d4ed8;text-decoration:underline;}

/* 优势模块 浅蜜桃红底色 */
.advantage-index{padding:80px 0;}
.advantage-list{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.adv-item{
    text-align:center;
    padding:32px;
    background:rgba(236, 72, 153, 0.06);
    border-radius:12px;
    transition:0.3s;
}
.adv-item:hover{background:rgba(236, 72, 153, 0.1);transform:translateY(-5px);}
.adv-item h4{color:#ec4899;margin-bottom:15px;font-size:17px;font-weight:600;}
.adv-item p{color:#475569;line-height:1.8;}

/* 底部咨询横幅 同Banner渐变 */
.contact-banner{
    padding:60px 0;
    background:linear-gradient(135deg, #a855f7 0%, #ec4899 30%, #f59e0b 60%, #10b981 100%) !important;
    color:#fff;
    text-align:center;
}
.contact-banner h2{font-size:30px;margin-bottom:15px;font-weight:600;}
.contact-banner p{margin-bottom:30px;opacity:0.95;font-size:16px;}
.contact-banner .btn{background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.35);color:#fff;}
.contact-banner .btn:hover{background:rgba(255,255,255,0.22);}

/* 右侧悬浮预约按钮 登录页标准蓝色，文字居中 */
.float-book {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 72px;
    height: 180px;
    background: #2563eb;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 40px;
    z-index: 999;
    transition:background 0.2s;
}
.float-book a {
    color: #fff;
    writing-mode: vertical-rl;
    letter-spacing: 2px;
    font-size: 14px;
}
.float-book:hover{
    background:#1d4ed8;
}

/* 移动端响应式适配 */
@media(max-width:768px){
    .container{width:100%;}
    .nav{display:none;}
    .service-list{grid-template-columns:1fr;}
    .advantage-list{grid-template-columns:1fr 1fr;}
    .about-index .row{flex-direction:column;}
    .about-index .col-left,.about-index .col-right{width:100%;}
    .header{height:auto;padding:12px 0;line-height:normal;}
    .header .container{flex-wrap:wrap;gap:15px;}
}
@media(max-width:480px){
    .advantage-list{grid-template-columns:1fr;}
    .data-box{gap:10px;}
}
/* 轮播背景图片样式 */
.banner-item {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
}
.banner-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}
.banner-text {
    position: relative;
    z-index: 2;
}

/* 资讯图片容器 */
.news-img {
    width: 100%;
    height: 160px;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 12px;
}
.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.news-item:hover .news-img img {
    transform: scale(1.05);
}

/* 案例图片 */
.case-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
    transition: transform 0.4s ease;
}
.case-item:hover img {
    transform: scale(1.05);
}

/* FAQ图片 */
.faq-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    margin-bottom: 12px;
    border-radius:6px;
}

/* 全局图片硬件加速，减少渲染抖动 */
img {
    transform: translateZ(0);
    backface-visibility: hidden;
}