/* ============================================================
   北京绿之源生态科技 · 企业官网模板
   主色：#2E7D32(深绿) / #4CAF50(中绿) / #81C784(浅绿)
   背景：白 + 浅灰(#f5f8f5)   全局响应式 + 滚动动画
   ============================================================ */

/* ---------- 变量 ---------- */
:root{
  --green-deep:#2E7D32;
  --green:#4CAF50;
  --green-light:#81C784;
  --green-50:#E8F5E9;
  --green-100:#C8E6C9;
  --ink:#16241a;
  --txt:#2f3a31;
  --txt-soft:#6b7d70;
  --bg:#ffffff;
  --bg-soft:#f5f8f5;
  --line:#e4ece6;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 12px 34px -14px rgba(46,125,50,.22);
  --shadow-sm:0 6px 18px -10px rgba(46,125,50,.25);
  --nav-h:64px;
  --grad:linear-gradient(135deg,#2E7D32 0%,#4CAF50 100%);
  --grad-soft:linear-gradient(135deg,#4CAF50,#81C784);
  --maxw:1200px;
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--txt);line-height:1.75;background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .25s,background .25s}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;gap:7px;background:var(--grad);color:#fff;
  font-size:15px;font-weight:600;padding:13px 32px;border-radius:50px;border:0;cursor:pointer;
  transition:.3s;box-shadow:0 8px 22px -8px rgba(46,125,50,.5);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -8px rgba(46,125,50,.55);background:linear-gradient(135deg,#388E3C,#43A047)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:7px;background:transparent;color:var(--green-deep);
  font-size:15px;font-weight:600;padding:12px 30px;border-radius:50px;border:2px solid var(--green);cursor:pointer;transition:.3s;
}
.btn-ghost:hover{background:var(--green);color:#fff;transform:translateY(-2px)}
.btn-outline-light{
  display:inline-flex;align-items:center;gap:7px;background:transparent;color:#fff;
  font-size:15px;font-weight:600;padding:12px 30px;border-radius:50px;border:2px solid rgba(255,255,255,.5);cursor:pointer;transition:.3s;
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- 通用 Section ---------- */
.section{padding:84px 0}
.section.soft{background:var(--bg-soft)}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:3px;text-transform:uppercase;
  color:var(--green);font-weight:700;margin-bottom:10px;
}
.section-title{font-size:clamp(26px,3.6vw,36px);font-weight:800;color:var(--ink);letter-spacing:.5px}
.section-title span{color:var(--green)}
.section-sub{color:var(--txt-soft);font-size:15px;margin-top:10px}
.divider{width:46px;height:3px;background:var(--grad);border-radius:2px;margin:18px auto 0}

/* ---------- 导航栏 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--green-deep);transition:box-shadow .3s,background .3s}
.site-header.scrolled{box-shadow:0 2px 18px rgba(0,0,0,.18)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);padding:0 32px;max-width:1240px;margin:0 auto}
.logo{display:flex;align-items:center;gap:11px;color:#fff;font-size:22px;font-weight:700;letter-spacing:.5px;flex-shrink:0;white-space:nowrap}
.logo .leaf,.logo .logo-img{width:34px;height:34px;flex-shrink:0;object-fit:contain;border-radius:6px;}
.logo .dot{color:var(--green-light);margin:0 2px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{color:rgba(255,255,255,.82);font-size:14.5px;padding:8px 15px;border-radius:6px;transition:.25s;white-space:nowrap}
.nav a:hover,.nav a.active{color:#fff;background:rgba(255,255,255,.12)}
/* 子链接在 JS 包成 .sub-nav 前先隐藏，避免闪烁 */
.nav-item>.sub-link{display:none}

/* ---------- 二级下拉菜单（桌面：悬停展开） ---------- */
.nav-item{position:relative}
.nav-item>.nav-link{display:flex;align-items:center;gap:5px}
.nav-item .caret{display:inline-block;width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.75;transition:transform .25s;margin-top:2px}
.sub-nav{
  position:absolute;top:100%;left:0;min-width:200px;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  box-shadow:0 14px 34px rgba(0,0,0,.18);
  padding:8px 0;margin-top:6px;z-index:1001;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s,transform .25s,visibility .25s;
}
/* 右侧末项避免溢出视口 */
.nav-item:last-child .sub-nav,.nav-item:nth-last-child(2) .sub-nav{left:auto;right:0}
/* 透明桥接：填补父项与下拉框之间的间隙，避免鼠标移动时菜单闪烁收起 */
.sub-nav::before{content:'';position:absolute;top:-10px;left:0;right:0;height:10px}
.nav-item:hover>.sub-nav{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item:hover>.nav-link .caret{transform:rotate(180deg)}
.sub-nav a{
  display:block;padding:10px 22px;color:var(--ink);font-size:14px;
  white-space:nowrap;transition:all .2s;border-left:3px solid transparent;
}
.sub-nav a:hover{background:var(--green-50);color:var(--green-deep);border-left-color:var(--green);padding-left:28px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;z-index:1001}
.nav-toggle span{display:block;width:23px;height:2px;background:#fff;margin:5px 0;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 全屏 Banner ---------- */
.banner{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:var(--nav-h)}
.slides{position:relative;width:100%;min-height:calc(100vh - var(--nav-h))}
.slide{
  position:absolute;inset:0;
  background:linear-gradient(135deg,#1B5E20 0%,#2E7D32 38%,#4CAF50 100%);
  background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .9s ease;
}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(20,40,25,.62),rgba(20,40,25,.25))}
.slide.active{opacity:1;position:relative}
.slide-content{position:relative;z-index:2;text-align:center;color:#fff;padding:60px 20px;max-width:760px;animation:fadeUp .9s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.slide-tag{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.15);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.22);padding:6px 18px;border-radius:50px;font-size:13px;letter-spacing:1px;margin-bottom:26px}
.slide h1{font-size:clamp(34px,5.6vw,60px);font-weight:800;line-height:1.18;letter-spacing:2px;margin-bottom:20px;text-shadow:0 2px 22px rgba(0,0,0,.2)}
.slide-desc{font-size:clamp(14px,1.6vw,17px);opacity:.9;line-height:1.85;margin-bottom:36px;max-width:580px;margin-left:auto;margin-right:auto}
.btn-group{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.banner-arrow{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:24px;animation:bounce 2s infinite;cursor:pointer;z-index:5}
@keyframes bounce{0%,20%,50%,80%,100%{transform:translateX(-50%) translateY(0)}40%{transform:translateX(-50%) translateY(10px)}60%{transform:translateX(-50%) translateY(5px)}}
.dots{position:absolute;bottom:66px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:5}
.dots .dot{width:30px;height:4px;border-radius:2px;background:rgba(255,255,255,.35);border:0;cursor:pointer;transition:.3s;padding:0}
.dots .dot.active{background:#fff;width:46px}

/* ---------- 内页 Banner ---------- */
.sub-banner{position:relative;min-height:240px;margin-top:var(--nav-h);display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden;background:linear-gradient(120deg,#2E7D32 0%,#4CAF50 55%,#81C784 100%)}
.sub-banner::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 18% 28%,rgba(255,255,255,.14) 0 2px,transparent 3px),radial-gradient(circle at 82% 72%,rgba(255,255,255,.12) 0 2px,transparent 3px),radial-gradient(circle at 50% 92%,rgba(255,255,255,.10) 0 2px,transparent 3px);background-size:72px 72px;opacity:.7}
.sub-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(20,40,25,.30),rgba(20,40,25,.12))}
.sub-banner .inner{position:relative;z-index:2;padding:0 20px;width:100%}
.sub-banner .en{font-size:13px;letter-spacing:5px;opacity:.85;text-transform:uppercase;margin-bottom:10px}
.sub-banner h1{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:2px;margin:0 0 12px;text-shadow:0 2px 14px rgba(0,0,0,.22)}
.sub-banner .crumb-inline{font-size:13px;opacity:.92}
.sub-banner .crumb-inline a{color:#fff;opacity:.85}
.sub-banner .crumb-inline a:hover{opacity:1}
.sub-banner .crumb-inline span{margin:0 7px;opacity:.6}

/* ---------- 业务概览(首页) ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.biz-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:38px 24px 30px;text-align:center;transition:.35s;position:relative;overflow:hidden}
.biz-card::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:.35s;z-index:0}
.biz-card>*{position:relative;z-index:1}
.biz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.biz-card:hover::before{opacity:1}
.biz-card:hover h3,.biz-card:hover p{color:#fff}
.biz-icon{width:66px;height:66px;border-radius:18px;background:var(--green-50);display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;transition:.35s}
.biz-card:hover .biz-icon{background:rgba(255,255,255,.18)}
.biz-icon svg{width:32px;height:32px;fill:none;stroke:var(--green);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:.35s}
.biz-card:hover .biz-icon svg{stroke:#fff}
.biz-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px}
.biz-card p{font-size:13.5px;color:var(--txt-soft);line-height:1.75}
.biz-card .more{display:inline-block;margin-top:14px;font-size:13px;font-weight:600;color:var(--green);opacity:0;transform:translateY(6px);transition:.35s}
.biz-card:hover .more{opacity:1;transform:translateY(0);color:#fff}

/* ---------- 数据条 ---------- */
.band{background:var(--green-50);padding:60px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.band-num{font-size:clamp(34px,4.6vw,50px);font-weight:900;color:var(--green-deep);line-height:1;margin-bottom:6px}
.band-num span{font-size:.5em;font-weight:700;color:var(--green)}
.band-grid p{font-size:14px;color:var(--txt-soft)}

/* ---------- 卡片网格(案例/新闻通用) ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}

/* 案例卡 */
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-100)}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card:hover .case-thumb img{transform:scale(1.06)}
.case-type{position:absolute;top:14px;left:14px;background:var(--grad);color:#fff;font-size:12px;font-weight:600;padding:4px 14px;border-radius:50px}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.45}
.case-meta{display:flex;align-items:center;gap:14px;color:var(--txt-soft);font-size:13px;flex-wrap:wrap}
.case-meta svg{width:15px;height:15px;stroke:var(--green);fill:none;stroke-width:2;vertical-align:-2px;margin-right:3px}
.case-desc{font-size:14px;color:var(--txt-soft);line-height:1.75;margin:10px 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 案例网格（两栏：上缩略图 / 下标题描述） */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.case-grid .case-card{display:flex;flex-direction:column}
.case-grid .case-card.is-top{border-color:var(--green-100);box-shadow:0 2px 14px rgba(46,125,50,.14)}
.top-badge{position:absolute;top:14px;right:14px;background:linear-gradient(135deg,#ff9800,#f57c00);color:#fff;font-size:12px;font-weight:600;padding:3px 12px;border-radius:50px;display:none;box-shadow:0 2px 8px rgba(245,124,0,.35)}
.case-card.is-top .top-badge{display:block}

/* 置顶案例（左侧栏） */
.case-top-list li{margin-bottom:12px}
.case-top-item{display:flex;gap:10px;align-items:center;padding:8px;border-radius:10px;background:#fff;border:1px solid var(--line);transition:.25s}
.case-top-item:hover{box-shadow:var(--shadow-sm);transform:translateX(3px);border-color:var(--green-100)}
.case-top-item img{width:58px;height:44px;object-fit:cover;border-radius:6px;flex-shrink:0;background:var(--bg-soft)}
.case-top-item .ct-t{font-size:13px;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-top-empty{font-size:13px;color:var(--txt-soft);padding:6px 0}

/* 分类筛选（可点击） */
.cat-filter li{margin-bottom:10px}
.cat-filter li a{display:block;font-size:14px;padding:10px 14px;color:var(--txt);background:#fff;border:1px solid var(--line);border-radius:10px;transition:.2s}
.cat-filter li a:hover{color:var(--green-deep);border-color:var(--green-100);padding-left:18px}
.cat-filter li a.active{background:var(--grad);color:#fff;border-color:transparent;font-weight:600}

/* 新闻卡 */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--green-100)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.news-meta{display:flex;gap:12px;color:var(--txt-soft);font-size:12.5px;margin-bottom:8px}
.news-meta .date{color:var(--green-deep);font-weight:600}
.news-body h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:13.5px;color:var(--txt-soft);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-more{margin-top:12px;font-size:13px;font-weight:600;color:var(--green);align-self:flex-start}

/* 新闻列表行(横向：左缩略图 / 右信息) */
.news-row{display:flex;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s}
.news-row:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--green-100)}
.news-row .news-thumb{width:240px;flex-shrink:0;align-self:stretch;background:var(--bg-soft);overflow:hidden}
.news-row .news-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-row:hover .news-thumb img{transform:scale(1.05)}
.news-row .news-body{padding:20px 22px;flex:1;display:flex;flex-direction:column;justify-content:center}
.news-row .news-body h3{font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:10px}
.news-row .news-body h3 a{transition:.2s}
.news-row:hover .news-body h3 a{color:var(--green-deep)}
.news-row .news-meta{display:flex;flex-wrap:wrap;gap:6px 14px;color:var(--txt-soft);font-size:12.5px;margin-bottom:10px}
.news-row .news-meta .date{color:var(--green-deep);font-weight:600}
.news-row .news-meta .views{color:var(--green)}
.news-row .news-body p{font-size:13.5px;color:var(--txt-soft);line-height:1.75;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .news-more{margin-top:auto;font-size:13px;font-weight:600;color:var(--green);align-self:flex-start}

/* ---------- 产品列表（卡片网格，与新闻列表两栏布局保持一致） ---------- */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-100)}
.prod-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.prod-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.prod-card:hover .prod-thumb img{transform:scale(1.06)}
.prod-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:8px}
.prod-body h3 a{transition:.2s}
.prod-card:hover .prod-body h3 a{color:var(--green-deep)}
.prod-desc{font-size:13.5px;color:var(--txt-soft);line-height:1.7;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.prod-params{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px;padding-top:14px;border-top:1px dashed var(--line)}
.prod-params .pp{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--txt-soft);background:var(--bg-soft);padding:5px 12px;border-radius:50px}
.prod-params .pp b{color:var(--green-deep);font-weight:600}

/* ---------- 关于我们 ---------- */
.about-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.about-intro .lead{font-size:15.5px;color:var(--txt-soft);line-height:1.95}
.about-intro .lead strong{color:var(--green-deep)}
.about-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--green-50)}
.about-img img{width:100%;height:100%;object-fit:cover}
.stat-row{display:flex;gap:30px;margin-top:26px;flex-wrap:wrap}
.stat-row .s b{display:block;font-size:30px;font-weight:800;color:var(--green)}
.stat-row .s span{font-size:13px;color:var(--txt-soft)}

/* 时间轴 */
.timeline{position:relative;max-width:860px;margin:0 auto;padding:10px 0}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--green-100);transform:translateX(-50%)}
.tl-item{position:relative;width:50%;padding:18px 40px}
.tl-item:nth-child(odd){left:0;text-align:right}
.tl-item:nth-child(even){left:50%}
.tl-dot{position:absolute;top:26px;width:16px;height:16px;border-radius:50%;background:var(--green);border:3px solid #fff;box-shadow:0 0 0 3px var(--green-100);z-index:2}
.tl-item:nth-child(odd) .tl-dot{right:-8px}
.tl-item:nth-child(even) .tl-dot{left:-8px}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow-sm)}
.tl-year{font-size:20px;font-weight:800;color:var(--green-deep);margin-bottom:4px}
.tl-card h4{font-size:16px;color:var(--ink);margin-bottom:6px}
.tl-card p{font-size:13.5px;color:var(--txt-soft);line-height:1.7}

/* 资质荣誉 */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 22px;text-align:center;transition:.35s}
.cert-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--green-100)}
.cert-badge{width:72px;height:72px;margin:0 auto 16px;border-radius:50%;background:var(--green-50);display:flex;align-items:center;justify-content:center}
.cert-badge svg{width:34px;height:34px;stroke:var(--green);fill:none;stroke-width:2}
.cert-card h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:4px}
.cert-card p{font-size:12.5px;color:var(--txt-soft)}

/* 团队 */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.team-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;text-align:center;transition:.35s}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.team-photo{aspect-ratio:1;background:var(--green-50);overflow:hidden}
.team-photo img{width:100%;height:100%;object-fit:cover}
.team-body{padding:18px 16px 22px}
.team-body h4{font-size:16px;font-weight:700;color:var(--ink)}
.team-body .role{font-size:13px;color:var(--green);font-weight:600;margin:3px 0 8px}
.team-body p{font-size:12.5px;color:var(--txt-soft);line-height:1.7}

/* ---------- 业务领域(business.html) ---------- */
.biz-detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.biz-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 30px;transition:.35s;position:relative}
.biz-block:hover{box-shadow:var(--shadow);border-color:var(--green-100)}
.biz-block .bh{display:flex;align-items:center;gap:16px;margin-bottom:14px}
.biz-block .biz-icon{margin-bottom:0;width:58px;height:58px}
.biz-block h3{font-size:19px;font-weight:800;color:var(--ink)}
.biz-block .en{font-size:12px;letter-spacing:2px;color:var(--green);text-transform:uppercase}
.biz-block p{font-size:14px;color:var(--txt-soft);line-height:1.85;margin-bottom:14px}
.biz-block ul{margin:0 0 16px;padding-left:18px}
.biz-block ul li{font-size:13.5px;color:var(--txt-soft);line-height:1.9;list-style:disc;color:#557a5e}
.biz-block .biz-link{font-size:13.5px;font-weight:600;color:var(--green)}

/* ---------- 详情页(content.html) ---------- */
.detail-wrap{display:grid;grid-template-columns:1fr;gap:0}
.article{padding:54px 0}
.article-head{text-align:center;max-width:760px;margin:0 auto 36px}
.article-head .cat{display:inline-block;background:var(--green-50);color:var(--green-deep);font-size:12.5px;font-weight:600;padding:4px 16px;border-radius:50px;margin-bottom:14px}
.article-head h1{font-size:clamp(24px,3.4vw,34px);font-weight:800;color:var(--ink);line-height:1.4}
.article-meta{display:flex;justify-content:center;gap:20px;color:var(--txt-soft);font-size:13px;margin-top:14px;flex-wrap:wrap}
.article-meta span{display:inline-flex;align-items:center;gap:5px}
.article-cover{margin:0 auto 34px;max-width:860px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.article-cover img{width:100%}
.article-content{max-width:820px;margin:0 auto;font-size:15.5px;color:#37443a;line-height:1.95}
.article-content p{margin-bottom:16px}
.article-content img{max-width:100%;border-radius:10px;margin:14px 0}
.article-content h2,.article-content h3{color:var(--ink);margin:26px 0 12px;font-weight:700}
.article-content blockquote{border-left:4px solid var(--green);background:var(--green-50);padding:14px 18px;border-radius:0 10px 10px 0;color:var(--txt-soft);margin:18px 0}

/* 案例详情块 */
.case-spec{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin:30px auto;max-width:860px}
.case-spec .panel{background:var(--bg-soft);border-radius:var(--radius);padding:18px}
.case-spec h4{font-size:14px;color:var(--green-deep);margin-bottom:12px;display:flex;align-items:center;gap:7px}
.case-spec .compare{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.case-spec .compare figure{margin:0}
.case-spec .compare img{width:100%;border-radius:10px;aspect-ratio:4/3;object-fit:cover}
.case-spec .compare figcaption{font-size:12px;color:var(--txt-soft);text-align:center;margin-top:6px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px auto;max-width:860px}
.metric{background:var(--green-50);border-radius:var(--radius);padding:18px;text-align:center}
.metric b{display:block;font-size:26px;font-weight:800;color:var(--green-deep)}
.metric span{font-size:12.5px;color:var(--txt-soft)}

/* ---------- 新闻列表 + 侧边栏 ---------- */
.list-layout{display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:start}
.list-main{display:flex;flex-direction:column;gap:22px}
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:84px}
.widget{background:var(--bg-soft);border-radius:var(--radius);padding:22px}
.widget h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--green-100);display:flex;align-items:center;gap:8px}
.widget h4::before{content:"";width:4px;height:16px;background:var(--grad);border-radius:2px}
.cat-list li a{display:flex;justify-content:space-between;font-size:14px;padding:9px 0;color:var(--txt);border-bottom:1px dashed var(--line);transition:.2s}
.cat-list li a:hover{color:var(--green);padding-left:6px}
.cat-list li a span{color:var(--txt-soft);font-size:12px}
.hot-list li{margin-bottom:14px}
.hot-list a{display:flex;gap:12px;align-items:flex-start}
.hot-num{flex-shrink:0;width:24px;height:24px;border-radius:6px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.hot-list .ht{font-size:13.5px;color:var(--txt);line-height:1.5;transition:.2s}
.hot-list a:hover .ht{color:var(--green)}
.hot-loading{font-size:13px;color:var(--txt-soft)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag-cloud a{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--txt-soft);font-size:12.5px;padding:5px 14px;border-radius:50px;transition:.25s}
.tag-cloud a:hover{background:var(--green);color:#fff;border-color:var(--green)}

/* 侧边栏搜索框 */
.side-search{display:flex;gap:8px}
.side-search input{flex:1;min-width:0;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;color:var(--txt);background:#fff;transition:.25s}
.side-search input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--green-50)}
.side-search button{border:0;background:var(--grad);color:#fff;border-radius:10px;padding:0 18px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;transition:.25s}
.side-search button:hover{background:linear-gradient(135deg,#388E3C,#43A047)}
.search-tip{font-size:12.5px;color:var(--txt-soft);margin-top:10px;min-height:18px}
.no-result{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:40px 20px;text-align:center;color:var(--txt-soft)}

/* 分页 */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:36px;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border-radius:10px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--txt);transition:.25s}
.pagination a:hover,.pagination .active{background:var(--grad);color:#fff;border-color:transparent}

/* ---------- 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info .ci-item{display:flex;gap:16px;margin-bottom:24px}
.ci-icon{width:48px;height:48px;border-radius:12px;background:var(--green-50);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ci-icon svg{width:22px;height:22px;stroke:var(--green);fill:none;stroke-width:2}
.ci-item h4{font-size:15px;color:var(--ink);margin-bottom:3px}
.ci-item p{font-size:14px;color:var(--txt-soft)}
.map-box{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);min-height:280px;background:var(--bg-soft)}
.map-box iframe{width:100%;height:300px;border:0;display:block}

/* 留言表单 */
.msg-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px}
.msg-form .field{margin-bottom:18px}
.msg-form label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.msg-form label .req{color:#e53935;margin-left:3px}
.msg-form input,.msg-form textarea{width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;color:var(--txt);background:#fff;transition:.25s;font-family:inherit}
.msg-form input:focus,.msg-form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--green-50)}
.msg-form textarea{resize:vertical;min-height:120px}
.captcha-row{display:flex;gap:12px;align-items:center}
.captcha-row input{flex:1}
.captcha-row img{height:46px;border-radius:8px;cursor:pointer;border:1px solid var(--line)}
.form-note{font-size:12.5px;color:var(--txt-soft);margin-top:6px}

/* ---------- 搜索 ---------- */
.search-bar{display:flex;gap:10px;max-width:560px;margin:0 auto 40px}
.search-bar input{flex:1;padding:13px 18px;border:1px solid var(--line);border-radius:50px;font-size:14.5px}
.search-bar input:focus{outline:none;border-color:var(--green)}
.search-bar button{border:0;background:var(--grad);color:#fff;border-radius:50px;padding:0 26px;font-size:14.5px;font-weight:600;cursor:pointer}
.result-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;margin-bottom:16px;transition:.3s}
.result-item:hover{box-shadow:var(--shadow);border-color:var(--green-100)}
.result-item h3{font-size:17px;color:var(--ink);margin-bottom:6px}
.result-item h3 mark{background:var(--green-50);color:var(--green-deep);padding:0 3px;border-radius:3px}
.result-item p{font-size:13.5px;color:var(--txt-soft);line-height:1.7}
.result-item .rm{font-size:12.5px;color:var(--green);margin-top:8px;display:inline-block}

/* ---------- 页脚（三栏标签式导航：公司信息 / 快速导航 / 友情链接） ---------- */
.site-footer{background:var(--green-deep);color:rgba(255,255,255,.72);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:46px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}

/* 第一栏：公司信息 */
.fc-info{}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;letter-spacing:.3px}
.footer-logo .leaf,.footer-logo .logo-img{width:28px;height:28px;flex-shrink:0;object-fit:contain;border-radius:6px;}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.58);margin-bottom:18px}

/* 联系方式列表 */
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{font-size:13.5px;padding:5px 0;display:flex;gap:8px;color:rgba(255,255,255,.65)}
.contact-list li span{color:var(--green-light);white-space:nowrap;font-weight:600;min-width:32px}

/* 第二、三栏：标签式标题 */
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;padding-bottom:10px;border-bottom:2px solid rgba(255,255,255,.15);display:inline-block}
.fc-nav .footer-title{border-color:var(--green-light)}
.fc-links .footer-title{border-color:var(--green-100)}

/* 快速导航 */
.footer-nav a{display:block;font-size:13.5px;padding:6px 0;color:rgba(255,255,255,.62);transition:.25s;text-decoration:none;border-radius:4px}
.footer-nav a:hover{color:#fff;background:rgba(255,255,255,.08);padding-left:8px}

/* 友情链接 */
.footer-links a{display:inline-block;font-size:13px;padding:5px 10px;margin:2px 8px 2px 0;color:rgba(255,255,255,.6);transition:.25s;text-decoration:none;background:rgba(255,255,255,.06);border-radius:20px}
.footer-links a:hover{color:#fff;background:rgba(255,255,255,.15)}

/* 版权栏 */
.copyright{text-align:center;padding:22px 20px;font-size:12.5px;color:rgba(255,255,255,.42);line-height:1.8}
.copyright a{color:rgba(255,255,255,.55)}
.copyright a:hover{color:var(--green-light)}

/* ---------- 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ---------- 面包屑 ---------- */
.crumb{background:var(--bg-soft);padding:14px 0;font-size:13px;color:var(--txt-soft)}
.crumb a{color:var(--green)}
.crumb span{margin:0 8px;color:#c2cfc6}

/* ---------- 响应式 ≤960px ---------- */
@media(max-width:960px){
  .header-inner{padding:0 18px;height:58px}
  .logo{font-size:18px;gap:8px}
  .logo .logo-img{width:28px;height:28px}
  .nav-toggle{display:block}
  .nav{position:fixed;top:0;right:-280px;width:260px;height:100vh;background:var(--green-deep);flex-direction:column;align-items:stretch;padding:78px 22px 30px;gap:4px;transition:right .35s ease;box-shadow:-4px 0 22px rgba(0,0,0,.25);z-index:999;overflow-y:auto}
  .nav.open{right:0}
  .nav a{padding:12px 16px;font-size:15px;border-radius:10px}
  /* 移动端：二级菜单改为点击展开（默认收起、点开显示），深色抽屉内浅色文字 */
  .nav-item>.sub-link{display:none}
  .sub-nav{
    position:static!important;top:auto!important;left:auto!important;right:auto!important;
    min-width:0;margin:0 0 4px;padding:0;border:0;border-radius:8px;
    background:rgba(255,255,255,.06);box-shadow:none;
    opacity:1!important;visibility:visible!important;transform:none!important;display:none;
  }
  .nav-item.has-child.open>.sub-nav{display:block}
  .sub-nav a{padding:11px 18px 11px 34px;color:rgba(255,255,255,.85);border-left:0;font-size:14px}
  .sub-nav a:hover{background:rgba(255,255,255,.12);color:#fff;padding-left:40px}
  .nav-item>.nav-link .caret{border-top-color:rgba(255,255,255,.7)}
  .banner{margin-top:58px}
  .sub-banner{margin-top:58px;min-height:170px}
  .biz-grid,.cert-grid,.team-grid,.band-grid{grid-template-columns:repeat(2,1fr)}
  .about-intro,.contact-grid,.case-spec,.biz-detail-grid{grid-template-columns:1fr;gap:30px}
  .list-layout{grid-template-columns:1fr}
  .sidebar{position:static;flex-direction:column;top:auto}
  .sidebar .widget{width:100%}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .timeline::before{left:18px}
  .tl-item{width:100%;left:0!important;text-align:left!important;padding:14px 0 14px 48px}
  .tl-item .tl-dot{left:10px!important;right:auto!important}
}

/* ---------- 响应式 ≤600px ---------- */
@media(max-width:600px){
  .section{padding:56px 0}
  .slide h1{font-size:30px;letter-spacing:1px}
  .btn-group{flex-direction:column;align-items:center}
  .biz-grid,.cert-grid,.team-grid,.grid-2,.grid-3{grid-template-columns:1fr}
  .band-grid{grid-template-columns:1fr 1fr;gap:18px}
  .metric-grid{grid-template-columns:1fr 1fr}
  .case-spec .compare{grid-template-columns:1fr}
  .eyebrow{font-size:11px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .article{padding:36px 0}
  .news-row{flex-direction:column}
  .news-row .news-thumb{width:100%;aspect-ratio:16/9;height:auto}
  .news-row .news-body{padding:16px 18px 20px}
  .product-grid{grid-template-columns:1fr;gap:18px}
  .case-grid{grid-template-columns:1fr;gap:18px}
}

/* ---------- 手机底部快捷栏（参考官方 foot 设计，仅小屏） ---------- */
.m-quickbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:999;
  background:var(--green-deep);
  box-shadow:0 -4px 18px rgba(0,0,0,.18);
}
.m-quickbar a{
  flex:1;text-align:center;color:#fff;padding:10px 0;
  font-size:13px;line-height:1.3;
  border-right:1px solid rgba(255,255,255,.18);
}
.m-quickbar a:last-child{border-right:none}
.m-quickbar .m-q-ico{display:block;font-size:18px;margin-bottom:2px}

/* 小屏时给页面底部留白，避免被快捷栏遮挡 */
@media(max-width:600px){
  .m-quickbar{display:flex}
  .site-footer{padding-bottom:64px}
}

/* ---------- 列表页分页 ---------- */
.pager{text-align:center;margin:45px 0 10px}
.pager a,.pager span,.pager info{display:inline-block;min-width:38px;height:38px;line-height:38px;padding:0 14px;margin:0 4px;border-radius:8px;background:#fff;color:var(--txt);border:1px solid var(--line);font-size:14px;transition:all .25s}
.pager a:hover{background:var(--green-50);color:var(--green-deep);border-color:var(--green-100)}
.pager .active,.pager .page-current{background:var(--grad);color:#fff;border-color:transparent}
.pager .disabled{opacity:.4;pointer-events:none}

/* ---------- 招聘列表 ---------- */
.job-list{display:flex;flex-direction:column;gap:14px}
.job-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 26px;background:#fff;border-radius:12px;box-shadow:var(--shadow-sm);border-left:4px solid var(--green);transition:all .3s}
.job-row:hover{transform:translateX(4px);box-shadow:var(--shadow);border-left-color:var(--green-deep)}
.job-row-main{flex:1;min-width:0}
.job-row-title{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:6px}
.job-row-desc{font-size:14px;color:var(--txt-soft);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.job-row-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}
.job-row-date{font-size:13px;color:#999}
.job-row-go{font-size:13px;color:var(--green-deep);font-weight:600}
@media(max-width:600px){
  .job-row{flex-direction:column;align-items:flex-start;gap:10px;padding:18px}
  .job-row-meta{flex-direction:row;align-items:center;width:100%;justify-content:space-between}
  .pager a,.pager span{padding:0 9px;min-width:32px;height:32px;line-height:32px;margin:0 2px}
}

/* ---------- 留言记录 ---------- */
.msg-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.msg-item{background:#fff;border-radius:12px;padding:20px 26px;box-shadow:var(--shadow-sm);border-left:4px solid var(--green-light)}
.msg-item-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.msg-nick{font-weight:700;color:var(--ink);font-size:15px}
.msg-date{font-size:13px;color:#999}
.msg-text{color:var(--txt);font-size:15px;line-height:1.9;margin:0}
.msg-reply{margin-top:12px;padding:12px 16px;background:var(--green-50);border-radius:8px;font-size:14px;color:var(--green-deep)}
.msg-reply-label{font-weight:700}

/* ---------- 首页友情链接模块 ---------- */
.home-links{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px;
  max-width:900px;margin:0 auto;
}
.home-links a{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  color:var(--txt);font-size:14px;
  padding:8px 20px;border-radius:50px;
  transition:.28s;
}
.home-links a .hl-logo{height:20px;width:auto;max-width:90px;object-fit:contain;border-radius:4px;vertical-align:middle;}
.home-links a .hl-name{line-height:1;}
.home-links a:hover{
  background:var(--grad);color:#fff;border-color:transparent;
  transform:translateY(-2px);box-shadow:var(--shadow);
}