*{margin:0;padding:0;box-sizing:border-box}
:root{
  --green:#1f5fa8;
  --green2:#174a86;
  --green3:#0d3360;
  --lime:#4a90d9;
  --gold:#f5a623;
  --ink:#24303d;
  --gray:#66737f;
  --line:#e3e8ee;
  --bg:#f3f6fa;
}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;color:var(--ink);background:#fff;line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1520px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.topbar{background:linear-gradient(90deg,var(--green3),var(--green));color:#d6e4f5;font-size:16px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:44px;flex-wrap:wrap}
.topbar .tel{color:#fff;font-weight:700}
.topbar .tel a{color:#ffe08a}
.lang a{display:inline-flex;align-items:center;gap:4px;color:#fff;padding:2px 8px;border-radius:4px;font-size:13px}
.lang a.on{background:rgba(255,255,255,.22)}

/* 头部 */
.header{background:#fff;box-shadow:0 2px 8px rgba(13,51,96,.12);position:sticky;top:0;z-index:99}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:78px;gap:12px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--lime));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:18px;flex:0 0 auto}
.brand .t1{font-size:26px;font-weight:800;color:var(--green);letter-spacing:1px;white-space:nowrap}
.brand .t2{font-size:13px;color:var(--lime);letter-spacing:2px}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{padding:10px 18px;font-size:21px;font-weight:600;border-radius:6px;color:var(--ink)}
.nav a:hover,.nav a.on{background:var(--green);color:#fff}
.nav a.dy{background:#fe2c55;color:#fff;display:inline-flex;align-items:center;gap:6px}
.nav a.dy:hover{background:#e02649;color:#fff}
.dy-btn{display:inline-flex;align-items:center;gap:8px;background:#fe2c55;color:#fff;font-weight:700;font-size:16px;padding:12px 26px;border-radius:10px;cursor:pointer;transition:.2s;text-decoration:none}
.dy-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(254,44,85,.35);color:#fff}
.nav-toggle{display:none;font-size:26px;background:none;border:none;color:var(--green)}

/* banner */
.banner{position:relative;overflow:hidden}
.banner img{width:100%;height:auto;display:block}
.banner .cap{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#fff;background:linear-gradient(180deg,rgba(13,51,96,.25),rgba(13,51,96,.45));padding:0 20px}
.banner .cap h1{font-size:44px;font-weight:900;letter-spacing:3px;text-shadow:0 2px 12px rgba(0,0,0,.45);line-height:1.3}
.banner .cap h1 span{color:var(--gold)}
.banner .cap p{margin-top:14px;font-size:17px;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.banner .cap .btn{margin-top:26px}

/* 首页轮播 banner */
.banner-slider{position:relative;overflow:hidden;height:600px}
.banner-slider .slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease;pointer-events:none}
.banner-slider .slide.active{opacity:1;pointer-events:auto}
.banner-slider .slide img{width:100%;height:100%;object-fit:cover}
.banner-slider .slide .cap{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#fff;background:linear-gradient(180deg,rgba(13,51,96,.25),rgba(13,51,96,.45));padding:0 20px}
.banner-dots{position:absolute;bottom:22px;left:0;right:0;display:flex;justify-content:center;gap:10px;z-index:5}
.banner-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:.25s}
.banner-dots span.on{background:var(--gold);transform:scale(1.2)}
@media(max-width:860px){.banner-slider{height:460px}.banner-slider .slide .cap h1{font-size:26px}.banner-slider .slide .cap p{font-size:14px}}

/* 区块 */
.section{padding:44px 0}
.section.bg{background:var(--bg)}
.sec-title{text-align:center;margin-bottom:8px}
.sec-title h2{font-size:30px;color:var(--green);letter-spacing:2px;display:inline-block}
.sec-title h2::after{content:"";display:block;width:64px;height:4px;background:linear-gradient(90deg,var(--lime),var(--gold));margin:8px auto 0;border-radius:2px}
.sec-sub{text-align:center;color:var(--gray);margin-bottom:22px;font-size:14px}

/* 分类筛选 */
.tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tabs button{border:1px solid var(--green);background:#fff;color:var(--green);padding:7px 22px;border-radius:20px;cursor:pointer;font-size:15px;font-family:inherit}
.tabs button.on{background:var(--green);color:#fff}

/* 网格卡片 */
.grid{display:grid;gap:20px}
.g5{grid-template-columns:repeat(5,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{box-shadow:0 8px 24px rgba(27,122,61,.18);transform:translateY(-4px)}
.card .pic{aspect-ratio:4/3;overflow:hidden;background:#eef4ee;position:relative}
.card .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .pic img{transform:scale(1.06)}
.card .bd{padding:12px 14px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:16px;color:var(--ink)}
.card p{font-size:13px;color:var(--gray);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px;flex:1}
.card .tel-row{margin-top:10px;font-size:14px;font-weight:700;color:var(--green)}
.card .tel-row a{color:var(--green)}
.card .tel-row a:hover{color:var(--green2)}

/* 新闻三列 */
.news-col h3{background:linear-gradient(90deg,var(--green),var(--lime));color:#fff;padding:9px 16px;border-radius:8px 8px 0 0;font-size:17px}
.news-col ul{list-style:none;border:1px solid var(--line);border-top:none;border-radius:0 0 8px 8px;background:#fff}
.news-col li{padding:11px 16px;border-bottom:1px dashed var(--line);font-size:14px}
.news-col li:last-child{border-bottom:none}
.news-col li a:hover{color:var(--green)}
.news-col li a::before{content:"◆";color:var(--lime);font-size:10px;margin-right:6px}

/* CTA */
.cta{background:linear-gradient(120deg,var(--green3),var(--green) 55%,var(--lime));color:#fff;text-align:center;padding:44px 20px;border-radius:12px;margin:30px 0}
.cta h2{font-size:26px;margin-bottom:8px}
.cta .tel{font-size:34px;font-weight:800;letter-spacing:2px;color:#ffe08a}
.cta .tel a{color:#ffe08a}
.cta p{opacity:.92}

/* 详情页 */
.crumb{font-size:13px;color:var(--gray);padding:12px 0}
.crumb a:hover{color:var(--green)}
.article{background:#fff;max-width:1000px;margin:0 auto;padding-bottom:40px}
.article h1{font-size:26px;color:var(--ink);margin:6px 0 14px;line-height:1.4}
.article h2{font-size:20px;color:var(--green);margin:26px 0 10px;padding-left:12px;border-left:5px solid var(--lime)}
.article p{margin:10px 0}
.article table{width:100%;border-collapse:collapse;margin:14px 0}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;font-size:14px;text-align:left}
.article th{background:var(--bg);width:180px;color:var(--green)}
.article ul{margin:10px 0 10px 2em}
.article .hero-img{border-radius:10px;margin:10px 0 16px;aspect-ratio:4/3;object-fit:cover;width:100%}

/* 侧栏 */
.side .box{border:1px solid var(--line);border-radius:10px;margin-bottom:20px;overflow:hidden;background:#fff}
.side .box h3{background:var(--green);color:#fff;padding:10px 16px;font-size:16px}
.side .box .in{padding:12px 16px}
.side .box ul{list-style:none}
.side .box li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px}
.side .box li:last-child{border-bottom:none}
.side .box li a:hover{color:var(--green)}
.side .tel-big{font-size:24px;font-weight:800;color:var(--green);text-align:center;display:block;margin:6px 0}

/* FAQ */
.faq{margin:14px 0}
.faq details{border:1px solid var(--line);border-radius:8px;margin-bottom:10px;background:#fff;overflow:hidden}
.faq summary{padding:13px 16px;font-weight:700;cursor:pointer;color:var(--ink);list-style:none;position:relative;font-size:15px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";display:inline-block;background:var(--green);color:#fff;width:22px;height:22px;line-height:22px;text-align:center;border-radius:50%;margin-right:8px;font-size:13px;vertical-align:2px}
.faq summary::after{content:"+";position:absolute;right:16px;top:10px;color:var(--lime);font-size:22px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq .a{padding:2px 16px 14px 46px;color:var(--gray);font-size:14px;margin:0}

/* 优势 */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:16px 0}
.adv .it{background:var(--bg);border-radius:10px;padding:16px 12px;text-align:center}
.adv .ic{font-size:26px}
.adv b{display:block;color:var(--green);margin:4px 0 2px;font-size:15px}
.adv span{font-size:12.5px;color:var(--gray)}

/* 页脚 */
.footer{background:var(--green3);color:#c5d6ea;margin-top:50px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:34px;padding:40px 0 26px}
.footer h4{color:#fff;font-size:16px;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--lime);display:inline-block}
.footer p,.footer li{font-size:13px;line-height:2}
.footer ul{list-style:none}
.footer ul a:hover{color:var(--gold)}
.subsites{border-top:1px solid #2a4a75;padding:18px 0;font-size:12.5px;line-height:2.1}
.subsites b{color:var(--gold)}
.subsites .row{margin-bottom:6px}
.subsites a{color:#a9c2de;margin-right:12px;white-space:nowrap}
.subsites a:hover{color:#fff}
.copy{background:#081f38;text-align:center;padding:13px;font-size:12.5px;color:#9fb3cc}
.copy a{color:#9fb3cc}
.copy a:hover{color:#fff}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:16px;padding:13px 30px;border-radius:10px;background:var(--gold);color:#2b1c00;cursor:pointer;transition:.2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,166,35,.35)}
.btn.ghost{background:transparent;border:1.5px solid rgba(255,255,255,.65);color:#fff}

/* 城市分站区块 */
.city-nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:18px 0 6px}
.city-nav a{border:1px solid var(--line);background:#fff;padding:7px 18px;border-radius:20px;font-size:14px;color:var(--green);transition:.2s}
.city-nav a:hover{border-color:var(--green);background:var(--green);color:#fff}
.city-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:14px}
.city-card h3{font-size:17px;color:var(--green);margin-bottom:8px}
.city-card p{font-size:14px;color:var(--gray)}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px}
.contact-card h3{font-size:19px;color:var(--green);margin-bottom:14px}
.contact-card .row{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.contact-card .row:last-child{border-bottom:none}
.contact-card .row b{color:var(--ink);min-width:70px}
.contact-card .row span{color:var(--gray)}
.contact-card .tel-big{font-size:28px;font-weight:800;color:var(--green);display:block;margin:8px 0}

/* 响应式 */
@media(max-width:1200px){.g5{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){
  .g5,.g4,.g3{grid-template-columns:repeat(2,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
  .nav{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;flex-direction:column;padding:10px;box-shadow:0 8px 16px rgba(0,0,0,.12)}
  .nav.open{display:flex}.nav-toggle{display:block}.brand .t1{font-size:16px}.cta .tel{font-size:24px}.banner .cap h1{font-size:28px}.contact-grid{grid-template-columns:1fr}.adv{grid-template-columns:repeat(2,1fr)}
  .layout-2col{grid-template-columns:1fr !important;gap:15px !important}
  .sidebar{width:100% !important}
  .section .wrap > div[style*="grid-template-columns:1fr 340px"]{grid-template-columns:1fr !important}
  .section .wrap > div[style*="grid-template-columns:1fr 340px"] > .side{width:100% !important}
}
@media(max-width:520px){.g5,.g4,.g3{grid-template-columns:1fr 1fr}.footer .cols{grid-template-columns:1fr}}