/* iChina Visa 全局公共样式 */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}
body {
    font-family: system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
    background:#ffffff;
    color:#222;
    line-height:1.7;
}
a{
    text-decoration:none;
}
.container{
    max-width:1200px;
    margin:0 auto;
    padding:60px 24px;
}
.section-title{
    text-align:center;
    font-size:24px;
    color:#222;
    margin-bottom:40px;
}

/* 顶部导航 */
header.navbar{
    position:sticky;
    top:0;
    z-index:999;
    background:#fff;
    box-shadow:0 1px 4px rgba(0,0,0,0.08);
}
.nav-container{
    max-width:1200px;
    margin:0 auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
    height:64px;
    padding:0 24px;
}
.logo{
    font-size:20px;
    font-weight:700;
    color:#b71722;
}
.nav-links{
    display:flex;
    gap:28px;
}
.nav-links a{
    color:#333;
    font-size:15px;
}
.nav-links a:hover{
    color:#b71722;
}
/* 汉堡菜单 移动端 */
.hamburger{
    display:none;
    flex-direction:column;
    gap:5px;
    background:none;
    border:none;
    cursor:pointer;
}
.hamburger span{
    width:26px;
    height:3px;
    background-color:#333;
    border-radius:2px;
}
.mobile-menu{
    display:none;
    position:absolute;
    top:64px;
    left:0;
    width:100%;
    background:#ffffff;
    box-shadow:0 4px 8px rgba(0,0,0,0.1);
    padding:16px 24px;
}
.mobile-menu a{
    display:block;
    padding:10px 0;
    color:#333;
}
.mobile-menu.show{
    display:block;
}

/* Hero头部Banner红金渐变 */
.hero{
    background:linear-gradient(135deg,#a8101a,#c91c28);
    color:#fff;
    padding:70px 20px;
    text-align:center;
}
.hero h1{
    font-size:34px;
    background:linear-gradient(180deg,#fff8cc,#f2d279);
    -webkit-background-clip:text;
    color:transparent;
    margin-bottom:12px;
}
.hero p{
    font-size:17px;
    opacity:0.9;
    max-width:700px;
    margin:0 auto;
}

/* 服务卡片网格 */
.service-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(270px,1fr));
    gap:28px;
}
.service-card{
    border:1px solid #eee;
    border-radius:14px;
    padding:28px;
    transition:0.2s;
}
.service-card:hover{
    box-shadow:0 4px 16px rgba(183,23,34,0.12);
}
.service-card h2{
    font-size:18px;
    color:#b71722;
    margin-bottom:12px;
}
.service-card p{
    font-size:15px;
    color:#444;
    margin-bottom:16px;
}
.service-card a{
    color:#b71722;
    font-weight:500;
}

/* 首页联系咨询模块 */
.contact-home{
    background:#fafafa;
    border-radius:16px;
    padding:40px 24px;
    margin-top:60px;
    text-align:center;
}
.wechat-qr{
    width:200px;
    height:200px;
    margin:0 auto 20px;
    border-radius:12px;
    border:2px solid #e8c57c;
    display:block;
}
.wx-id{
    font-size:22px;
    font-weight:bold;
    color:#b71722;
    margin:10px 0 18px;
}
.btn-copy{
    padding:14px 32px;
    background:linear-gradient(135deg,#b71722,#d1242f);
    color:#fff;
    border:none;
    border-radius:10px;
    font-size:16px;
    cursor:pointer;
    display:inline-block;
}
.phone-block{
    margin-top:24px;
    font-size:16px;
}
.phone-block p{
    margin:6px 0;
}
.phone-block a{
    color:#222;
}

/* 返回顶部按钮 */
#backTop{
    position:fixed;
    right:24px;
    bottom:24px;
    width:48px;
    height:48px;
    background:#b71722;
    color:#fff;
    border-radius:50%;
    border:none;
    font-size:18px;
    cursor:pointer;
    display:none;
    z-index:99;
}
#backTop.show{
    display:block;
}

/* 页脚 */
footer{
    border-top:1px solid #eee;
    padding:32px 20px;
    text-align:center;
    font-size:14px;
    color:#666;
    margin-top:40px;
}
.footer-links{
    margin-bottom:12px;
}
.footer-links a{
    margin:0 8px;
    color:#666;
}
.footer-links a:hover{
    color:#b71722;
}

/* 详情页通用板块 */
.content-block{
    margin:32px 0;
}
.content-block h2{
    color:#b71722;
    margin-bottom:16px;
    font-size:22px;
}
.content-block ul{
    padding-left:22px;
}
.content-block li{
    margin-bottom:8px;
}
.faq-item{
    margin-bottom:20px;
}

/* 移动端适配 */
@media screen and (max-width:768px){
    .nav-links{
        display:none;
    }
    .hamburger{
        display:flex;
    }
    .hero h1{
        font-size:26px;
    }
}