/* style.css */
:root{
    --primary:#1976D2;
    --secondary:#607D8B;
    --light:#F5F7FA;
    --dark:#212121;
}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color:#333;background-color:#fafbfc}
a{text-decoration:none;color:var(--primary)}
a:hover{color:#0d5bbd}
.text-primary{color:var(--primary)!important}
.bg-primary{background-color:var(--primary)!important}
.btn-primary{background-color:var(--primary);border-color:var(--primary)}
.btn-primary:hover{background-color:#0d5bbd;border-color:#0d5bbd}
.btn-outline-primary{color:var(--primary);border-color:var(--primary)}
.btn-outline-primary:hover{background-color:var(--primary);border-color:var(--primary)}
.border-primary{border-color:var(--primary)!important}
/* 公共头 */
header .navbar-brand span{font-size:1.25rem}
header .nav-link{position:relative;padding:.5rem 1rem;font-weight:500}
header .nav-link.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60%;height:3px;background:var(--primary);border-radius:2px}
/* 轮播 */
.carousel-caption{background:rgba(0,0,0,.4);border-radius:.5rem;padding:2rem}
.carousel-caption h2{font-size:2rem}
/* 卡片 */
.hover-card{transition:transform .3s,box-shadow .3s}
.hover-card:hover{transform:translateY(-5px);box-shadow:0 .5rem 1rem rgba(0,0,0,.15)!important}
/* 优势步骤 */
.badge.rounded-pill{font-size:1rem;width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center}
/* 城市按钮 */
.city-btn{font-size:.75rem;padding:.25rem .5rem;margin:.125rem}
/* 表单 */
#contactForm .form-control:focus{border-color:var(--primary);box-shadow:0 0 0 .2rem rgba(25,118,210,.25)}
/* 页脚 */
footer h5,footer h6{position:relative;padding-bottom:.5rem}
footer h5::after,footer h6::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:2px;background:var(--primary)}
/* 响应式 */
@media(max-width:576px){
    .carousel-caption h2{font-size:1.25rem}
    .carousel-caption .lead{font-size:1rem}
    .carousel-caption .btn{padding:.375rem .75rem;font-size:.875rem}
}