:root{
--primary:#9C27B0;
--secondary:#212121;
--accent:#E1BEE7;
--text:#fff;
--gray:#9e9e9e;
}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color:var(--text);background:var(--secondary);}
a{color:var(--accent);}
.topbar{background:var(--primary);}
.navbar{background: rgba(33,33,33,0.95);backdrop-filter:blur(8px);}
.header-line{height:3px;background: linear-gradient(90deg,var(--primary),var(--accent));}
.footer{background: #111;}
.bg-darker{background:#181818;}
.social-links a{font-size:1.5rem;margin-right:1rem;color:var(--accent);}
.slider .carousel-caption{bottom:25%;}
.slider h2{font-size:3rem;font-weight:700;text-shadow:0 0 10px var(--primary);}
.city-directory .btn-outline-secondary{color:var(--accent);border-color:var(--accent);}
.city-directory .btn-outline-secondary:hover{background:var(--primary);border-color:var(--primary);}
.service-intro ul{list-style:none;padding-left:0;}
.service-intro ul li:before{content:"✔";color:var(--primary);margin-right:8px;}
.fixed-img{height:200px;object-fit:cover;width:100%;}
.counter{font-weight:700;}
.timeline{position:relative;padding-left:1.5rem;border-left:3px solid var(--primary);}
.timeline-item{position:relative;margin-bottom:2rem;}
.timeline-year{position:absolute;left:-3.5rem;background:var(--primary);color:#fff;padding:0.25rem 0.6rem;border-radius:4px;}
.grayscale{filter:grayscale(100%);transition:filter 0.3s;}
.grayscale:hover{filter:grayscale(0);}
.accordion-button{background:transparent;color:var(--text);}
.accordion-button:not(.collapsed){background:var(--primary);color:#fff;}
.accordion-body{background:#222;}
/* 响应式 */
@media (max-width:768px){
.slider h2{font-size:1.8rem;}
.page-title h1{font-size:1.5rem;}
}