/* === Reset === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;line-height:1.6;color:#333;background:#fafafa;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.wrapper{max-width:1160px;margin:0 auto;padding:0 20px}

/* === Top Banner === */
.top-banner{background:#1a1a1a;color:#999;font-size:12px;padding:8px 0;border-bottom:1px solid #333}
.top-banner .wrapper{display:flex;justify-content:space-between;align-items:center}
.banner-phone strong{color:#e63946}

/* === Header === */
.site-header{background:#222;padding:16px 0;position:sticky;top:0;z-index:1000;box-shadow:0 2px 15px rgba(0,0,0,.4)}
.header-flex{display:flex;justify-content:space-between;align-items:center}
.logo-title{color:#e63946;font-size:20px;font-weight:700;letter-spacing:1px}
.logo-desc{color:#666;font-size:11px;margin-top:2px}
.main-menu ul{display:flex;gap:26px}
.main-menu a{color:#ddd;font-size:14px;font-weight:500;padding:6px 0;position:relative;transition:color .3s}
.main-menu a::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:2px;background:#e63946;transition:all .3s;transform:translateX(-50%)}
.main-menu a:hover{color:#e63946}
.main-menu a:hover::after{width:100%}
.menu-btn{display:none;flex-direction:column;gap:5px;cursor:pointer}
.menu-btn i{width:22px;height:2px;background:#e63946;display:block;transition:all .3s}

/* === Main Banner === */
.main-banner{position:relative;background:linear-gradient(135deg,#1a1a1a 0%,#2d2d2d 50%,#1a1a1a 100%);color:#fff;padding:90px 0 70px;text-align:center;overflow:hidden}
.banner-bg{position:absolute;top:0;left:0;right:0;bottom:0;background:url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23e63946' fill-opacity='0.04'%3E%3Cpath d='M20 20h20v20H20zM0 0h20v20H0z'/%3E%3C/g%3E%3C/svg%3E")}
.banner-inner{position:relative;z-index:1;max-width:780px;margin:0 auto}
.banner-heading{font-size:42px;font-weight:800;margin-bottom:14px;letter-spacing:2px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.banner-text{font-size:17px;color:#aaa;margin-bottom:45px;letter-spacing:1px}
.contact-cards{display:flex;justify-content:center;gap:20px;margin-bottom:40px;flex-wrap:wrap}
.c-card{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(230,57,70,.3);padding:16px 24px;border-radius:10px;transition:all .3s}
.c-card:hover{border-color:#e63946;transform:translateY(-3px)}
.c-icon{font-size:30px}
.c-detail{display:flex;flex-direction:column;text-align:left}
.c-label{font-size:11px;color:#888;margin-bottom:3px}
.c-num{font-size:17px;font-weight:700;color:#e63946}
.banner-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-fill,.btn-line{display:inline-block;padding:13px 34px;border-radius:5px;font-size:14px;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.btn-fill{background:#e63946;color:#fff;box-shadow:0 4px 12px rgba(230,57,70,.3)}
.btn-fill:hover{background:#c1121f;transform:translateY(-2px)}
.btn-line{background:transparent;color:#e63946;border:2px solid #e63946}
.btn-line:hover{background:#e63946;color:#fff}

/* === Core Advantages === */
.core-advantages{background:#f5f5f5;padding:55px 0}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv-box{text-align:center;padding:28px 18px;background:#fff;border-radius:8px;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:all .3s;border:1px solid #eee}
.adv-box:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.1);border-color:#e63946}
.adv-ico{font-size:40px;margin-bottom:14px}
.adv-box h3{font-size:16px;color:#1a1a1a;margin-bottom:8px;font-weight:700}
.adv-box p{font-size:12px;color:#666;line-height:1.7}

/* === Section Head === */
.sec-head{text-align:center;margin-bottom:45px}
.sec-title{font-size:30px;color:#1a1a1a;font-weight:800;margin-bottom:10px;position:relative;display:inline-block}
.sec-title::after{content:'';position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:50px;height:3px;background:#e63946;border-radius:2px}
.sec-desc{font-size:14px;color:#666;margin-top:18px}

/* === About Us === */
.about-us{padding:75px 0;background:#fff}
.about-body{max-width:780px;margin:0 auto}
.about-text h3{font-size:21px;color:#1a1a1a;margin-bottom:18px;font-weight:700;border-left:4px solid #e63946;padding-left:14px}
.about-text p{color:#444;font-size:14px;line-height:1.9;margin-bottom:16px}
.about-text strong{color:#1a1a1a}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:35px;padding-top:35px;border-top:1px solid #eee}
.stat-item{text-align:center}
.stat-num{display:block;font-size:34px;font-weight:800;color:#e63946;margin-bottom:5px}
.stat-txt{font-size:12px;color:#666}

/* === Our Services === */
.our-services{padding:75px 0;background:#f5f5f5}
.srv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.srv-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:all .3s;border:1px solid #eee}
.srv-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px rgba(0,0,0,.1)}
.srv-top{background:linear-gradient(135deg,#1a1a1a 0%,#2d2d2d 100%);padding:22px;display:flex;align-items:center;gap:14px}
.srv-ico{font-size:34px}
.srv-top h3{color:#e63946;font-size:16px;font-weight:700}
.srv-body{padding:22px}
.srv-body p{color:#444;font-size:13px;line-height:1.8;margin-bottom:14px}
.srv-body ul{padding-left:0}
.srv-body li{color:#666;font-size:12px;padding:5px 0 5px 18px;position:relative}
.srv-body li::before{content:'✓';position:absolute;left:0;color:#e63946;font-weight:700}

/* === Contact Us === */
.contact-us{padding:75px 0;background:#fff}
.cnt-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:35px}
.cnt-card{background:linear-gradient(135deg,#f9f9f9 0%,#f0f0f0 100%);padding:30px 18px;border-radius:10px;text-align:center;border:1px solid #eee;transition:all .3s}
.cnt-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.08)}
.cnt-ico{font-size:38px;margin-bottom:12px}
.cnt-card h3{font-size:14px;color:#1a1a1a;margin-bottom:10px;font-weight:700}
.cnt-val{font-size:19px;font-weight:800;color:#1a1a1a;margin-bottom:6px}
.cnt-desc{font-size:11px;color:#666;margin-bottom:14px}
.copy-btn{background:#1a1a1a;color:#e63946;border:none;padding:7px 18px;border-radius:18px;font-size:11px;font-weight:600;cursor:pointer;transition:all .3s}
.copy-btn:hover{background:#2d2d2d;transform:scale(1.05)}
.cnt-addr{text-align:center;padding:28px;background:linear-gradient(135deg,#1a1a1a 0%,#2d2d2d 100%);border-radius:10px;color:#fff}
.cnt-addr h3{font-size:17px;color:#e63946;margin-bottom:8px}
.cnt-addr p{font-size:15px;color:#ddd}

/* === FAQ Section === */
.faq-section{padding:75px 0;background:#f5f5f5}
.faq-wrap{max-width:780px;margin:0 auto}
.faq-box{background:#fff;border-radius:8px;margin-bottom:10px;overflow:hidden;border:1px solid #eee;transition:all .3s}
.faq-box:hover{box-shadow:0 4px 15px rgba(0,0,0,.06)}
.faq-q{padding:18px 22px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;transition:background .3s}
.faq-q:hover{background:#f9f9f9}
.faq-q h3{font-size:14px;color:#1a1a1a;font-weight:600;flex:1}
.faq-sign{font-size:22px;color:#e63946;font-weight:300;transition:transform .3s;width:22px;text-align:center}
.faq-box.active .faq-sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease}
.faq-box.active .faq-a{max-height:500px;padding:0 22px 18px}
.faq-a p{color:#444;font-size:13px;line-height:1.8;margin-bottom:8px}
.faq-a ul{padding-left:18px;margin:8px 0}
.faq-a li{color:#444;font-size:13px;margin-bottom:5px;list-style:disc}
.faq-a strong{color:#1a1a1a}

/* === News Section === */
.news-section{padding:75px 0;background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#f9f9f9;border-radius:10px;overflow:hidden;border:1px solid #eee;transition:all .3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.08)}
.news-date{background:linear-gradient(135deg,#1a1a1a 0%,#2d2d2d 100%);padding:14px;text-align:center;color:#fff}
.n-day{display:block;font-size:30px;font-weight:800;color:#e63946;line-height:1}
.n-month{font-size:11px;color:#888;margin-top:3px}
.news-body{padding:18px;flex:1;display:flex;flex-direction:column}
.news-body h3{font-size:14px;color:#1a1a1a;margin-bottom:10px;line-height:1.5;font-weight:700}
.news-body p{color:#666;font-size:12px;line-height:1.7;margin-bottom:14px;flex:1}
.news-link{color:#e63946;font-size:12px;font-weight:600;transition:color .3s}
.news-link:hover{color:#c1121f}

/* === Footer === */
.site-footer{background:#1a1a1a;color:#888;padding:55px 0 0}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #333}
.f-col h4{color:#e63946;font-size:14px;margin-bottom:18px;font-weight:700}
.f-col p{font-size:12px;line-height:1.8;margin-bottom:5px}
.f-col ul li{margin-bottom:8px}
.f-col a{font-size:12px;color:#888;transition:color .3s}
.f-col a:hover{color:#e63946}
.footer-bottom{text-align:center;padding:22px 0}
.footer-bottom p{font-size:11px;color:#666;margin-bottom:5px}

/* === Toast === */
.toast-msg{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.9);background:rgba(26,26,26,.95);color:#e63946;padding:14px 28px;border-radius:6px;font-size:13px;font-weight:600;opacity:0;visibility:hidden;transition:all .3s;z-index:9999;border:1px solid rgba(230,57,70,.3)}
.toast-msg.show{opacity:1;visibility:visible;transform:translate(-50%,-50%) scale(1)}

/* === Responsive === */
@media(max-width:1024px){
    .adv-grid{grid-template-columns:repeat(2,1fr)}
    .srv-grid{grid-template-columns:repeat(2,1fr)}
    .news-grid{grid-template-columns:repeat(2,1fr)}
    .footer-main{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .top-banner .wrapper{flex-direction:column;gap:3px;text-align:center}
    .header-flex{flex-wrap:wrap}
    .main-menu{display:none;width:100%;order:3;margin-top:14px}
    .main-menu.active{display:block}
    .main-menu ul{flex-direction:column;gap:10px}
    .main-menu a{display:block;padding:7px 0}
    .menu-btn{display:flex}
    .banner-heading{font-size:26px}
    .banner-text{font-size:14px}
    .contact-cards{flex-direction:column;align-items:center}
    .c-card{width:100%;max-width:280px}
    .sec-title{font-size:22px}
    .adv-grid{grid-template-columns:1fr}
    .srv-grid{grid-template-columns:1fr}
    .cnt-grid{grid-template-columns:1fr}
    .news-grid{grid-template-columns:1fr}
    .stats-row{grid-template-columns:repeat(2,1fr)}
    .footer-main{grid-template-columns:1fr;text-align:center}
}
@media(max-width:480px){
    .main-banner{padding:55px 0 45px}
    .banner-heading{font-size:22px}
    .banner-btns{flex-direction:column;align-items:center}
    .btn-fill,.btn-line{width:100%;max-width:240px;text-align:center}
    .about-us,.our-services,.contact-us,.faq-section,.news-section{padding:45px 0}
    .stats-row{grid-template-columns:repeat(2,1fr);gap:10px}
    .stat-num{font-size:26px}
}