/* ==========================================================
   西安美波园林花卉有限公司 · 主站样式
   色板：深绿 #1a5632 / 主绿 #2e7d4f / 浅绿底 #eef5f0
         暖白 #fafaf7 / 点缀金 #c9a86a
   ========================================================== */
:root{
  --green-dark:#1a5632;
  --green:#2e7d4f;
  --green-bg:#eef5f0;
  --warm:#fafaf7;
  --gold:#c9a86a;
  --text:#333333;
  --muted:#6b7269;
  --line:#e3e9e4;
  --radius:12px;
  --shadow:0 8px 28px rgba(26,86,50,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--warm);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:600;color:var(--green-dark);line-height:1.4}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
section{padding:72px 0}
.section-alt{background:var(--green-bg)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ---------- 通用标题 ---------- */
.section-head{text-align:center;margin-bottom:48px}
.section-head .eyebrow{
  display:inline-block;color:var(--green);font-size:14px;letter-spacing:4px;
  border:1px solid var(--green);border-radius:999px;padding:2px 18px;margin-bottom:14px;
}
.section-head h2{font-size:32px}
.section-head p{color:var(--muted);margin-top:10px}
.section-head .bar{width:56px;height:4px;background:var(--gold);border-radius:2px;margin:16px auto 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-block;padding:12px 34px;border-radius:999px;font-size:16px;
  transition:all .3s;cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark);color:#fff}
.btn-light{background:var(--gold);color:#fff}
.btn-light:hover{background:#b8924f;color:#fff}
.btn-ghost{border-color:#fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--green-dark)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(0,0,0,.09)}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{width:46px;height:46px;object-fit:contain}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:19px;color:var(--green-dark);letter-spacing:1px}
.brand-text em{font-style:normal;font-size:12px;color:var(--gold);letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{
  padding:8px 12px;font-size:15px;color:var(--text);border-radius:8px;white-space:nowrap;
}
.main-nav a:hover{color:var(--green);background:var(--green-bg)}
.main-nav a.active{color:#fff;background:var(--green)}
.header-tel{
  display:flex;align-items:center;gap:8px;flex-shrink:0;
  color:var(--green-dark);font-weight:600;font-size:17px;
}
.header-tel svg{width:20px;height:20px;fill:var(--gold)}
.header-tel:hover{color:var(--green)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;background:none;border:none;cursor:pointer;margin-left:auto;
}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--green-dark);border-radius:2px;transition:.3s}

/* ---------- 首页 Banner 轮播（纯 CSS 淡入淡出） ---------- */
.banner{position:relative;height:600px;overflow:hidden;background:var(--green-dark)}
.banner-slide{
  position:absolute;inset:0;display:flex;align-items:center;
  background-size:cover;background-position:center;
  opacity:0;animation:bannerFade 18s infinite;
}
.banner-slide:nth-child(2){animation-delay:6s}
.banner-slide:nth-child(3){animation-delay:12s}
@keyframes bannerFade{
  0%{opacity:0}
  2.5%{opacity:1}
  31%{opacity:1}
  34%{opacity:0}
  100%{opacity:0}
}
.banner-slide .container{position:relative;z-index:1}
.banner-tag{
  display:inline-block;color:#fff;background:rgba(201,168,106,.9);
  border-radius:999px;padding:4px 20px;font-size:14px;letter-spacing:3px;margin-bottom:20px;
}
.banner h2{color:#fff;font-size:46px;letter-spacing:2px;text-shadow:0 2px 12px rgba(0,0,0,.35)}
.banner .banner-sub{color:#f2f6f2;font-size:19px;margin:18px 0 34px;letter-spacing:1px}
.banner-btns{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 子页头图 ---------- */
.page-hero{
  height:320px;display:flex;align-items:center;
  background-size:cover;background-position:center;
}
.page-hero h1{color:#fff;font-size:38px;letter-spacing:2px;text-shadow:0 2px 10px rgba(0,0,0,.35)}
.page-hero p{color:#eef5f0;font-size:17px;margin-top:12px;letter-spacing:1px}

/* ---------- 面包屑 ---------- */
.breadcrumb{background:#fff;border-bottom:1px solid var(--line);padding:12px 0;font-size:14px;color:var(--muted)}
.breadcrumb .container{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb span{color:#c0c8c2}
.breadcrumb em{font-style:normal;color:var(--green-dark)}

/* ---------- 服务卡片 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s;
}
.service-card:hover{transform:translateY(-6px);box-shadow:0 14px 36px rgba(26,86,50,.16)}
.service-card .pic{height:210px;overflow:hidden}
.service-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.service-card:hover .pic img{transform:scale(1.06)}
.service-card .body{padding:24px 26px 28px;flex:1;display:flex;flex-direction:column}
.service-card h3{font-size:20px;margin-bottom:10px}
.service-card p{color:var(--muted);font-size:15px;flex:1}
.service-card .more{
  margin-top:18px;color:var(--green);font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.service-card .more svg{width:14px;height:14px;fill:currentColor}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.adv-item{
  background:#fff;border-radius:var(--radius);padding:36px 26px;text-align:center;
  box-shadow:var(--shadow);transition:transform .3s;
}
.adv-item:hover{transform:translateY(-6px)}
.adv-item .ico{
  width:72px;height:72px;margin:0 auto 20px;border-radius:50%;
  background:var(--green-bg);display:flex;align-items:center;justify-content:center;
}
.adv-item .ico svg{width:36px;height:36px;fill:var(--green)}
.adv-item h3{font-size:19px;margin-bottom:10px}
.adv-item p{color:var(--muted);font-size:14.5px;text-align:left}

/* ---------- 数字墙 ---------- */
.stats{background:var(--green-dark);color:#fff}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats .num{font-size:52px;font-weight:700;color:var(--gold);line-height:1.2}
.stats .num i{font-style:normal;font-size:24px;margin-left:2px}
.stats .label{margin-top:8px;font-size:16px;color:#e8f0ea;letter-spacing:2px}

/* ---------- 客户墙 ---------- */
.client-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.client-chip{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 16px;text-align:center;font-size:15px;color:var(--green-dark);
  display:flex;align-items:center;justify-content:center;min-height:64px;
  transition:all .3s;
}
.client-chip:hover{border-color:var(--gold);box-shadow:var(--shadow)}

/* ---------- 案例网格 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-item{
  border-radius:var(--radius);overflow:hidden;position:relative;background:#fff;
  box-shadow:var(--shadow);
}
.case-item .pic{height:230px;overflow:hidden}
.case-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-item:hover img{transform:scale(1.06)}
.case-item figcaption{padding:16px 18px;font-size:15px;color:var(--green-dark);font-weight:600}

/* ---------- 资讯聚合 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-col{
  background:#fff;border-radius:var(--radius);padding:32px 30px;box-shadow:var(--shadow);
}
.news-col h3{
  font-size:20px;padding-bottom:14px;margin-bottom:18px;
  border-bottom:2px solid var(--green-bg);position:relative;
}
.news-col h3::after{
  content:"";position:absolute;left:0;bottom:-2px;width:48px;height:2px;background:var(--gold);
}
.news-col li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:15px}
.news-col li:last-child{border-bottom:none}
.news-col li a{display:flex;justify-content:space-between;gap:10px;align-items:center}
.news-col li a:hover{color:var(--green)}

/* ---------- FAQ 折叠 ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-list details{
  background:#fff;border-radius:var(--radius);margin-bottom:16px;
  box-shadow:var(--shadow);overflow:hidden;
}
.faq-list summary{
  padding:20px 26px;font-size:17px;font-weight:600;color:var(--green-dark);
  cursor:pointer;list-style:none;position:relative;padding-right:52px;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:24px;color:var(--gold);font-weight:400;transition:transform .3s;
}
.faq-list details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-list .faq-a{padding:0 26px 22px;color:var(--muted);font-size:15.5px}
.faq-list details[open] .faq-a{animation:faqIn .35s ease}
@keyframes faqIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- 通用内容排版 ---------- */
.prose{max-width:900px;margin:0 auto}
.prose h2{font-size:26px;margin:44px 0 18px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:20px;margin:28px 0 12px}
.prose p{margin-bottom:14px;color:#444}
.prose li{margin-bottom:8px;color:#444}
.prose ul.list,.prose ol.list{padding-left:0;margin:0 0 16px}
.prose ul.list li{position:relative;padding-left:24px}
.prose ul.list li::before{
  content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;
  border-radius:50%;background:var(--gold);
}
.prose ol.list{counter-reset:ol-counter}
.prose ol.list li{position:relative;padding-left:34px;counter-increment:ol-counter}
.prose ol.list li::before{
  content:counter(ol-counter);position:absolute;left:0;top:2px;width:24px;height:24px;
  background:var(--green);color:#fff;border-radius:50%;font-size:13px;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- 图文两栏 ---------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.duo .pic{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.duo .pic img{width:100%;height:100%;object-fit:cover}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff}
table.data{width:100%;border-collapse:collapse;font-size:15px;min-width:560px}
table.data th{
  background:var(--green);color:#fff;padding:14px 18px;text-align:left;font-weight:600;white-space:nowrap;
}
table.data td{padding:13px 18px;border-bottom:1px solid var(--line);color:#444}
table.data tr:last-child td{border-bottom:none}
table.data tr:nth-child(even) td{background:var(--green-bg)}

/* ---------- 特性行 ---------- */
.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feature-card{
  background:#fff;border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);
  border-top:3px solid var(--green);
}
.feature-card .ico{width:56px;height:56px;border-radius:12px;background:var(--green-bg);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.feature-card .ico svg{width:28px;height:28px;fill:var(--green)}
.feature-card h3{font-size:18px;margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:14.5px}

/* ---------- 服务区域 ---------- */
.area-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.area-tag{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 22px;font-size:15px;color:var(--green-dark);transition:all .3s;
}
.area-tag:hover{background:var(--green);color:#fff;border-color:var(--green)}
.area-note{text-align:center;color:var(--muted);margin-top:20px;font-size:15px}

/* ---------- 联系卡片 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:44px}
.contact-card{
  background:#fff;border-radius:var(--radius);padding:28px 26px;box-shadow:var(--shadow);
  display:flex;gap:16px;align-items:flex-start;
}
.contact-card .ico{width:52px;height:52px;border-radius:12px;background:var(--green-bg);
  display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-card .ico svg{width:26px;height:26px;fill:var(--green)}
.contact-card h3{font-size:17px;margin-bottom:4px}
.contact-card p{color:var(--muted);font-size:15px;word-break:break-all}
.contact-card a:hover{color:var(--green)}
.qr-wrap{display:flex;gap:48px;justify-content:center;flex-wrap:wrap}
.qr-item{text-align:center}
.qr-item img{width:180px;height:180px;object-fit:contain;border:6px solid #fff;
  border-radius:var(--radius);box-shadow:var(--shadow);margin:0 auto}
.qr-item figcaption{margin-top:12px;color:var(--green-dark);font-weight:600}

/* ---------- 相关阅读 ---------- */
.related{background:var(--green-bg);padding:56px 0}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.related-grid a{
  background:#fff;border-radius:10px;padding:16px 18px;font-size:15px;color:var(--green-dark);
  border:1px solid transparent;transition:all .3s;display:block;
}
.related-grid a:hover{border-color:var(--green);box-shadow:var(--shadow)}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(135deg,var(--green-dark),var(--green));color:#fff;text-align:center}
.cta h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta p{color:#e2efe6;margin-bottom:28px}
.cta .btn-row{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#153f26;color:#c8d6cc;padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:17px;margin-bottom:18px}
.site-footer p{margin-bottom:10px}
.site-footer li{margin-bottom:10px}
.site-footer a:hover{color:var(--gold)}
.footer-qrs{display:flex;gap:22px;margin-top:18px}
.footer-qrs img{width:92px;height:92px;object-fit:contain;background:#fff;border-radius:8px;padding:4px}
.footer-qrs figcaption{text-align:center;margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;
  text-align:center;font-size:13.5px;color:#9fb3a6;
}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}
.reveal.d2{transition-delay:.2s}
.reveal.d3{transition-delay:.3s}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:26px;bottom:32px;width:46px;height:46px;border-radius:50%;
  background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:all .3s;z-index:150;
}
.back-top.visible{opacity:1;visibility:visible}
.back-top:hover{background:var(--green-dark)}
.back-top svg{width:20px;height:20px;fill:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .service-grid,.case-grid,.news-grid,.contact-grid,.feature-row{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .client-wall{grid-template-columns:repeat(3,1fr)}
  .related-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .banner h2{font-size:38px}
  .main-nav a{padding:8px 8px;font-size:14px}
  .header-tel{display:none}
}
@media (max-width:768px){
  section{padding:52px 0}
  .banner{height:480px}
  .banner h2{font-size:28px}
  .banner .banner-sub{font-size:16px}
  .page-hero{height:240px}
  .page-hero h1{font-size:28px}
  .section-head h2{font-size:26px}
  .nav-toggle{display:flex}
  .main-nav{
    display:none;position:absolute;top:76px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 16px;
    border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08);
  }
  .site-header.nav-open .main-nav{display:flex}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .main-nav a{padding:12px 10px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
  .main-nav a.active{background:none;color:var(--green)}
  .service-grid,.case-grid,.news-grid,.contact-grid,.feature-row,
  .adv-grid,.duo,.related-grid,.footer-grid{grid-template-columns:1fr}
  .client-wall{grid-template-columns:repeat(2,1fr)}
  .stats .grid{grid-template-columns:repeat(2,1fr)}
  .stats .num{font-size:40px}
  .duo{gap:24px}
  .qr-wrap{gap:28px}
  .back-top{right:16px;bottom:20px}
}

/* ---------- 咨询热线与备案 ---------- */
.ft-hotline{font-size:17px;font-weight:700;color:#fff;margin:0 0 8px;letter-spacing:.5px}
.ft-hotline a{color:#ffc163;text-decoration:none}
.ft-hotline a:hover{text-decoration:underline}
.ft-icp{color:inherit;text-decoration:none;opacity:.9}
.ft-icp:hover{text-decoration:underline;opacity:1}

/* ---------- 资质证件 ---------- */
.cert-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:920px;margin:0 auto}
.cert-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;box-shadow:0 8px 24px rgba(26,86,50,.07);transition:transform .3s ease,box-shadow .3s ease}
.cert-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(26,86,50,.14)}
.cert-card img{width:100%;height:270px;object-fit:contain;background:#f7f9f7;padding:12px}
.cert-card span{display:block;padding:14px 18px 16px}
.cert-card b{display:block;font-size:16.5px;color:var(--text)}
.cert-card small{display:block;margin-top:4px;font-size:13px;color:var(--muted)}
@media (max-width:640px){.cert-grid{grid-template-columns:1fr}.cert-card img{height:220px}}