:root{
  --dark:#1e2a33; --darker:#16212a; --yellow:#f7a600; --yellow-h:#ffc233; --orange:#e8730c;
  --gray:#f4f5f7; --text:#333; --muted:#6b7280; --line:#e5e7eb;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--text);line-height:1.75;background:#fff}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:var(--darker);box-shadow:0 2px 12px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px;color:#fff}
.logo-badge{width:44px;height:44px;object-fit:contain;background:transparent;flex:none}
.logo-text .cn{font-size:17px;font-weight:700;letter-spacing:1px;white-space:nowrap}
.logo-text .en{font-size:11px;color:#9aa5b1;letter-spacing:.5px}
.nav{display:flex;gap:4px}
.nav a{padding:9px 15px;color:#cfd8e0;border-radius:6px;font-size:14.5px;transition:.2s}
.nav a:hover,.nav a.active{background:var(--yellow);color:var(--darker);font-weight:700}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:28px;cursor:pointer;line-height:1}

/* ===== Hero ===== */
.hero{position:relative;background-size:cover;background-position:center;color:#fff}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,26,34,.8),rgba(18,26,34,.55))}
.hero .container{position:relative;z-index:2;text-align:center;padding-top:110px;padding-bottom:110px}
.hero h1{font-size:50px;font-weight:800;letter-spacing:6px;margin-bottom:16px;text-shadow:0 2px 14px rgba(0,0,0,.4)}
.hero h1 .hl{color:var(--yellow)}
.hero .sub{font-size:18px;color:#e8edf1;max-width:780px;margin:0 auto 34px}
.hero .quick{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-bottom:36px;font-size:15px}
.hero .quick span b{color:var(--yellow)}
.btn{display:inline-block;background:var(--yellow);color:var(--darker);padding:13px 34px;border-radius:6px;font-weight:700;font-size:16px;transition:.2s}
.btn:hover{background:var(--yellow-h);transform:translateY(-2px);box-shadow:0 6px 18px rgba(247,166,0,.35)}
.btn-outline{background:transparent;border:2px solid #fff;color:#fff;margin-left:14px}
.btn-outline:hover{background:#fff;color:var(--darker);transform:translateY(-2px)}

/* ===== Page banner ===== */
.page-banner{position:relative;background-size:cover;background-position:center;color:#fff}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,26,34,.88),rgba(18,26,34,.6))}
.page-banner .container{position:relative;z-index:2;padding:74px 20px}
.page-banner h1{font-size:34px;letter-spacing:3px}
.page-banner p{margin-top:8px;color:#c9d3dc;font-size:15px}

/* ===== Section ===== */
.section{padding:70px 0}
.section.gray{background:var(--gray)}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head .tag{display:inline-block;background:var(--yellow);color:var(--darker);font-size:12.5px;font-weight:700;padding:3px 14px;border-radius:20px;letter-spacing:1px;margin-bottom:12px}
.sec-head h2{font-size:30px;letter-spacing:2px;color:var(--dark)}
.sec-head .en{color:var(--muted);font-size:13px;letter-spacing:3px;margin-top:6px}
.sec-head p{color:var(--muted);max-width:720px;margin:12px auto 0;font-size:15px}

/* ===== Cards ===== */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 14px rgba(30,42,51,.08);transition:.25s;border:1px solid var(--line)}
.card:hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(30,42,51,.14)}
.card img{width:100%;height:200px;object-fit:cover;background:var(--gray)}
.card .body{padding:18px 20px 22px}
.card h3{font-size:17px;color:var(--dark);margin-bottom:8px}
.card p{font-size:13.5px;color:var(--muted);margin-bottom:10px}
.card .more{font-size:13.5px;color:var(--orange);font-weight:700}

/* ===== Feature / service chips ===== */
.chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.chip{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 20px;font-size:14.5px;font-weight:600;color:var(--dark);box-shadow:0 2px 8px rgba(30,42,51,.05)}
.chip b{color:var(--orange)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.stat{background:var(--darker);color:#fff;border-radius:12px;padding:26px 16px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--yellow);margin-bottom:6px}
.stat span{font-size:13.5px;color:#c9d3dc}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--line);box-shadow:0 3px 14px rgba(30,42,51,.06)}
table{width:100%;border-collapse:collapse;background:#fff;min-width:760px;font-size:14px}
th{background:var(--darker);color:#fff;padding:13px 14px;text-align:left;font-weight:600;white-space:nowrap}
td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text)}
tr:nth-child(even) td{background:#fafbfc}
tr:hover td{background:#fff8e8}
td .tag-price{color:var(--orange);font-weight:700}

/* ===== News ===== */
.news-item{background:#fff;border-radius:12px;border:1px solid var(--line);box-shadow:0 3px 14px rgba(30,42,51,.06);padding:26px 28px;margin-bottom:24px}
.news-item .date{display:inline-block;background:var(--gray);color:var(--muted);font-size:12.5px;padding:3px 12px;border-radius:16px;margin-bottom:12px}
.news-item h2{font-size:20px;color:var(--dark);margin-bottom:14px;line-height:1.5}
.news-item p{font-size:15px;color:var(--text);margin-bottom:10px;text-align:justify}

/* ===== Case ===== */
.case{background:#fff;border-radius:12px;border:1px solid var(--line);box-shadow:0 3px 14px rgba(30,42,51,.06);overflow:hidden}
.case .case-imgs{display:grid;grid-template-columns:1fr 1fr;gap:3px}
.case .case-imgs img{height:230px;width:100%;object-fit:cover;cursor:pointer;transition:.3s}
.case .case-imgs img:hover{opacity:.85}
.case .case-body{padding:18px 22px}
.case h3{font-size:16.5px;color:var(--dark);margin-bottom:6px}
.case .addr{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:6px}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.person{background:#fff;border-radius:12px;border:1px solid var(--line);box-shadow:0 3px 14px rgba(30,42,51,.07);text-align:center;padding:26px 20px}
.person img{width:112px;height:112px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:4px solid var(--gray)}
.person h3{font-size:18px;color:var(--dark)}
.person .role{display:inline-block;background:var(--yellow);color:var(--darker);font-size:12px;font-weight:700;padding:2px 12px;border-radius:14px;margin:8px 0 12px}
.person .phone{font-size:20px;font-weight:800;color:var(--orange);letter-spacing:1px}
.info-box{background:#fff;border-radius:12px;border:1px solid var(--line);box-shadow:0 3px 14px rgba(30,42,51,.06);padding:28px 30px}
.info-box h3{font-size:18px;color:var(--dark);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--yellow)}
.info-box ul li{padding:7px 0;font-size:15px;display:flex;gap:10px}
.info-box ul li b{color:var(--orange);min-width:90px;flex:none}

/* ===== Footer ===== */
.site-footer{background:var(--darker);color:#aeb9c3;padding:52px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:36px;margin-bottom:34px}
.footer-grid h4{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:1px}
.footer-grid p{line-height:2}
.footer-grid ul li{line-height:2.2}
.footer-grid ul li::before{content:'› ';color:var(--yellow)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:12.5px;color:#7d8a95}

/* ===== Responsive ===== */
@media(max-width:992px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav{position:fixed;top:72px;left:0;right:0;background:var(--darker);flex-direction:column;padding:10px 20px 18px;gap:2px;display:none;box-shadow:0 8px 20px rgba(0,0,0,.3)}
  .nav.open{display:flex}
  .nav a{padding:12px 12px;border-radius:6px}
  .nav-toggle{display:block}
  .hero h1{font-size:34px;letter-spacing:3px}
  .hero .container{padding-top:76px;padding-bottom:76px}
  .grid-3,.grid-4,.contact-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .case .case-imgs{grid-template-columns:1fr}
  .case .case-imgs img{height:200px}
  .btn-outline{margin-left:0;margin-top:12px}
}

/* ===== Lightbox ===== */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:999;display:none;align-items:center;justify-content:center;padding:30px}
.lightbox.show{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:8px;box-shadow:0 10px 50px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:16px;right:26px;background:none;border:none;color:#fff;font-size:42px;cursor:pointer;line-height:1;transition:.2s}
.lb-close:hover{color:var(--yellow)}
/* ===== CTA ===== */
.cta{background:linear-gradient(120deg,var(--dark),var(--darker));color:#fff;text-align:center;padding:66px 20px}
.cta h2{font-size:30px;letter-spacing:2px;margin-bottom:12px}
.cta h2 b{color:var(--yellow)}
.cta p{color:#c9d3dc;margin-bottom:28px}
.cta .tel{font-size:26px;font-weight:800;color:var(--yellow);letter-spacing:1px}


/* ===== 段落首行缩进 ===== */
.about-intro p, .news-item p { text-indent: 2em; margin-bottom: 10px; }

/* ===== 新闻配图 ===== */
.news-imgs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px;border-radius:10px;overflow:hidden}
.news-imgs img{width:100%;height:240px;object-fit:cover;background:#eee;cursor:pointer;transition:.3s}
.news-imgs img:hover{opacity:.85}
@media(max-width:768px){.news-imgs{grid-template-columns:1fr}.news-imgs img{height:200px}}

/* ===== 微信二维码 ===== */
.person .wechat{margin-top:14px;text-align:center;padding-top:12px;border-top:1px dashed #e5e7eb}
.person .wechat img{width:140px;height:200px;object-fit:contain;border:1px solid #e5e7eb;border-radius:8px;padding:4px;background:#fafafa}
.person .wechat p{font-size:12px;color:var(--muted);margin-top:6px}

/* ===== 滚动入场动画 ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .65s cubic-bezier(.22,.61,.36,1),transform .65s cubic-bezier(.22,.61,.36,1);will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}

/* 卡片/人物错落延迟 */
.grid-3 .card.reveal:nth-child(2),.grid-4 .card.reveal:nth-child(2){transition-delay:.1s}
.grid-3 .card.reveal:nth-child(3),.grid-4 .card.reveal:nth-child(3){transition-delay:.2s}
.grid-4 .card.reveal:nth-child(4){transition-delay:.3s}
.contact-grid .person.reveal:nth-child(2){transition-delay:.12s}
.contact-grid .person.reveal:nth-child(3){transition-delay:.24s}
.stats .stat.reveal:nth-child(2){transition-delay:.1s}
.stats .stat.reveal:nth-child(3){transition-delay:.2s}
.stats .stat.reveal:nth-child(4){transition-delay:.3s}

/* Hero 首屏渐入 */
.hero .container>*{opacity:0;transform:translateY(20px);animation:fadeUp .8s cubic-bezier(.22,.61,.36,1) forwards}
.hero h1{animation-delay:.1s}
.hero .sub{animation-delay:.3s}
.hero .quick{animation-delay:.5s}
.hero .btnwrap,.hero>div{animation-delay:.7s}
@keyframes fadeUp{to{opacity:1;transform:none}}

/* 尊重系统减少动态偏好 */
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero .container>*{opacity:1;transform:none;animation:none}
}

/* ===== 全站悬浮智能客服「小鹭」 ===== */
.chat-fab{
  position:fixed;right:24px;bottom:24px;z-index:99999;
  width:64px;height:64px;border-radius:50%;border:none;
  cursor:pointer;box-shadow:0 4px 20px rgba(247,166,0,.45);
  background:var(--yellow);overflow:hidden;transition:transform .25s, box-shadow .25s;
  animation:chatPulse 2.4s ease-in-out infinite;
}
.chat-fab:hover{transform:scale(1.08);box-shadow:0 6px 28px rgba(247,166,0,.6)}
.chat-fab img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.chat-fab.open{transform:rotate(0deg);animation:none}
@keyframes chatPulse{
  0%,100%{box-shadow:0 4px 20px rgba(247,166,0,.45)}
  50%{box-shadow:0 6px 30px rgba(247,166,0,.7),0 0 0 8px rgba(247,166,0,.12)}
}
.chat-popup{
  position:fixed;right:24px;bottom:96px;z-index:99999;
  width:360px;height:520px;
  background:#fff;border-radius:18px;
  box-shadow:0 12px 48px rgba(0,0,0,.18);
  display:flex;flex-direction:column;overflow:hidden;
  opacity:0;visibility:hidden;transform:translateY(16px) scale(.96);
  transition:opacity .28s, visibility .28s, transform .28s;
}
.chat-popup.show{opacity:1;visibility:visible;transform:none}
.chat-pop-head{
  display:flex;align-items:center;gap:10px;padding:14px 16px;
  background:linear-gradient(135deg,var(--darker),#2a3a47);color:#fff;
  flex-shrink:0;
}
.chat-pop-avatar{
  width:38px;height:38px;border-radius:50%;overflow:hidden;
  border:2px solid rgba(255,255,255,.3);flex-shrink:0;
}
.chat-pop-avatar img{width:100%;height:100%;object-fit:cover}
.chat-pop-info{flex:1;min-width:0}
.chat-pop-name{font-weight:700;font-size:15px}
.chat-pop-status{font-size:12px;color:#9fe3b0;display:flex;align-items:center;gap:5px;margin-top:1px}
.chat-pop-status i{width:7px;height:7px;border-radius:50%;background:#37d67a;display:inline-block}
.chat-pop-close{
  background:rgba(255,255,255,.15);border:none;color:#fff;width:28px;height:28px;
  border-radius:50%;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:background .2s;
}
.chat-pop-close:hover{background:rgba(255,255,255,.3)}
.chat-pop-body{
  flex:1;overflow-y:auto;padding:14px;background:var(--gray);
  display:flex;flex-direction:column;gap:10px;
}
.chat-pop-msg{
  max-width:82%;padding:10px 13px;border-radius:12px;
  font-size:14px;line-height:1.7;white-space:pre-wrap;word-break:break-word;
}
.chat-pop-msg.bot{align-self:flex-start;background:#fff;color:var(--text);border:1px solid var(--line);border-bottom-left-radius:3px}
.chat-pop-msg.user{align-self:flex-end;background:var(--yellow);color:var(--darker);border-bottom-right-radius:3px}
.chat-pop-msg.typing{align-self:flex-start;background:#fff;border:1px solid var(--line);color:var(--muted);font-size:13px}
.chat-pop-imgs{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.chat-pop-imgs img{width:46%;max-height:140px;object-fit:cover;border-radius:8px;border:1px solid var(--line);cursor:zoom-in}
.chat-pop-imgs img:only-child{width:72%}
.chat-pop-quick{display:flex;flex-wrap:wrap;gap:6px;padding:8px 12px;background:#fff;border-top:1px solid var(--line);flex-shrink:0}
.chat-pop-quick button{
  background:var(--gray);border:1px solid var(--line);border-radius:14px;
  padding:5px 12px;font-size:12.5px;color:var(--dark);cursor:pointer;transition:.2s;
}
.chat-pop-quick button:hover{background:var(--yellow);color:var(--darker)}
.chat-pop-input{
  display:flex;gap:8px;padding:12px;background:#fff;border-top:1px solid var(--line);flex-shrink:0;
}
.chat-pop-input input{
  flex:1;border:1px solid var(--line);border-radius:20px;padding:8px 15px;
  font-size:14px;outline:none;transition:border-color .2s;font-family:inherit;
}
.chat-pop-input input:focus{border-color:var(--yellow)}
.chat-pop-input button{
  background:var(--yellow);color:var(--darker);border:none;border-radius:50%;
  width:38px;height:38px;cursor:pointer;font-size:17px;flex-shrink:0;transition:background .2s;
}
.chat-pop-input button:hover{background:var(--orange)}
/* 语音麦克风按钮 */
.chat-pop-input .chat-pop-mic{background:#eef0f2;color:#444;font-size:16px}
.chat-pop-input .chat-pop-mic.recording{background:var(--orange);color:#fff;animation:micpulse 1s infinite}
.chat-input .chat-mic{
  background:#eef0f2;color:#444;border-radius:50%;width:42px;height:42px;flex:none;
  border:none;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s;
}
.chat-input .chat-mic.recording{background:var(--orange);color:#fff;animation:micpulse 1s infinite}
@keyframes micpulse{
  0%{box-shadow:0 0 0 0 rgba(247,166,0,.55)}
  70%{box-shadow:0 0 0 12px rgba(247,166,0,0)}
  100%{box-shadow:0 0 0 0 rgba(247,166,0,0)}
}
/* 轻提示 */
.chat-toast{
  position:fixed;left:50%;bottom:96px;transform:translateX(-50%) translateY(16px);
  background:rgba(20,20,20,.85);color:#fff;padding:10px 18px;border-radius:22px;
  font-size:14px;z-index:10001;opacity:0;transition:all .3s;pointer-events:none;max-width:80vw;text-align:center;
}
.chat-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* 移动端适配 */
@media(max-width:480px){
  .chat-fab{right:16px;bottom:16px;width:56px;height:56px}
  .chat-popup{right:8px;left:8px;bottom:76px;width:auto;height:60vh}
}

/* ===== 智能体照片放大 Lightbox ===== */
.chat-lightbox{
  position:fixed;inset:0;z-index:100000;
  background:rgba(0,0,0,.85);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;
  padding:24px;cursor:zoom-out;
}
.chat-lightbox.show{opacity:1;visibility:visible}
.chat-lightbox img{
  max-width:92vw;max-height:88vh;width:auto;height:auto;
  border-radius:10px;box-shadow:0 10px 60px rgba(0,0,0,.6);
  cursor:default;
}
.chat-lightbox .lb-close{
  position:absolute;top:18px;right:22px;
  width:42px;height:42px;border-radius:50%;border:none;
  background:rgba(255,255,255,.18);color:#fff;font-size:24px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .2s;
}
.chat-lightbox .lb-close:hover{background:rgba(255,255,255,.35)}
.chat-lightbox .lb-hint{
  position:absolute;bottom:20px;left:0;right:0;text-align:center;
  color:rgba(255,255,255,.6);font-size:13px;
}

/* 全站图片可点击放大（导航 logo 除外） */
img:not(.logo-badge){cursor:zoom-in}

/* 电话拨号链接：继承父级颜色，悬停下划线高亮 */
a[href^="tel:"]{color:inherit;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a[href^="tel:"]:hover{color:var(--orange)}