/* ===== 基础 ===== */
:root{
  --black:#111; --red:#c8102e; --red-d:#9e0c24; --gray:#222; --lgray:#666;
  --blue:#2f7bff; --blue-d:#1d4ed8;
  --bg:#f6f7f9; --line:#e5e7eb; --maxw:1240px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Arial,sans-serif;
  color:#222;background:var(--bg);line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.btn{display:inline-block;background:var(--red);color:#fff;border:0;padding:10px 22px;border-radius:4px;cursor:pointer;font-size:15px}
.btn:hover{background:var(--red-d)}
.muted{color:var(--lgray)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}
.site-main{min-height:60vh;padding-top:60px;padding-bottom:40px}

/* ===== 顶部固定导航：透明背景+白色文字，悬浮在视频/轮播图上 ===== */
.topnav{position:fixed;top:0;left:0;right:0;z-index:1000;background:transparent !important}
/* 默认首页完全透明；其他页面由 header.php 内联样式覆盖为黑底 */
.nav-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;height:60px;padding:0 16px}
.brand{color:#fff;font-weight:700;font-size:18px;white-space:nowrap;margin-right:18px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links > a{color:#fff;padding:8px 14px;font-size:15px;border-bottom:2px solid transparent;transition:border-color .15s}
.nav-links > a:hover{color:#fff;border-bottom-color:var(--blue)}
.nav-links > a.active{color:#fff;border-bottom-color:var(--blue)}
.lang-btns{display:flex;align-items:center;gap:8px;margin-left:14px}
.lang-btn{
  display:inline-block;
  padding:6px 14px;
  font-size:14px;
  line-height:1.4;
  color:#fff;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.5);
  border-radius:6px;
  white-space:nowrap;
  transition:.15s;
}
.lang-btn:hover{background:rgba(255,255,255,.24);border-color:#fff;color:#fff}
.lang-btn.on{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.lang-btn.on:hover{background:var(--blue);border-color:#fff;color:#fff}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:24px;margin-left:auto}

/* ===== 导航搜索 ===== */
.nav-search-btn{display:flex;align-items:center;justify-content:center;width:34px;height:34px;margin-left:12px;flex:0 0 auto;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.5);border-radius:6px;color:#fff;cursor:pointer;transition:.15s}
.nav-search-btn:hover,.nav-search-btn.on{background:var(--blue);border-color:var(--blue);color:#fff}
.nav-search-btn svg{width:18px;height:18px;display:block}
.nav-search-btn .ns-txt{display:none}
.nav-search-panel{position:absolute;top:60px;left:0;right:0;background:rgba(17,17,17,.97);padding:16px;
  box-shadow:0 14px 28px rgba(0,0,0,.35)}
.nav-search-panel[hidden]{display:none}
.nav-search-form{display:flex;max-width:720px;margin:0 auto}
.nav-search-form input{flex:1;min-width:0;padding:12px 14px;font-size:15px;color:#222;background:#fff;border:1px solid #fff;border-right:0;border-radius:6px 0 0 6px}
.nav-search-form input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,123,255,.3)}
.nav-search-form button{background:var(--blue);color:#fff;border:0;padding:0 26px;font-size:15px;cursor:pointer;border-radius:0 6px 6px 0}
.nav-search-form button:hover{background:var(--blue-d)}

/* ===== 右侧悬浮：白底圆形按钮 + 深蓝图标 ===== */
.float-bar{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:999;display:flex;flex-direction:column;gap:12px}
.fb{width:56px;height:56px;border:1px solid #eaf0f8;border-radius:50%;background:#fff;color:#12233f;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  box-shadow:0 6px 20px rgba(15,35,63,.18);transition:transform .16s,box-shadow .16s,background .16s,color .16s,border-color .16s}
.fb .fb-ico{display:flex;color:var(--blue-d);transition:color .16s}
.fb .fb-ico svg{width:21px;height:21px;display:block}
.fb .fb-txt{font-size:11px;line-height:1}
.fb:hover{background:var(--blue-d);border-color:var(--blue-d);color:#fff;transform:translateY(-3px);box-shadow:0 10px 26px rgba(29,78,216,.38)}
.fb:hover .fb-ico{color:#fff}
.fb:active{transform:translateY(-1px)}

/* ===== 弹层 ===== */
html.modal-open,body.modal-open{overflow:hidden}
.modal{position:fixed;inset:0;background:rgba(12,22,42,.5);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
  z-index:2000;display:none;align-items:center;justify-content:center;padding:16px}
.modal[hidden]{display:none}
/* 开/关同时认 hidden 和 .on：后台是逐文件上传，新旧 main.js 会混着跑，两种都得能开能关 */
.modal.on{display:flex}
.modal-box{background:#fff;border-radius:16px;max-width:420px;width:100%;padding:26px;position:relative;
  box-shadow:0 24px 60px rgba(8,20,45,.32);animation:modalIn .22s ease-out}
@keyframes modalIn{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}
.modal-box h3{margin:0;font-size:18px;color:#12233f;text-align:center}
.modal-box .modal-tip{margin:6px 0 18px;text-align:center;color:var(--lgray);font-size:13px}
.modal-close{position:absolute;right:12px;top:12px;width:30px;height:30px;padding:0;border:0;border-radius:50%;
  background:#f2f5fa;color:#7b879b;font-size:19px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s}
.modal-close:hover{background:var(--blue-d);color:#fff}
.qr-box{display:flex;justify-content:center;padding:16px;background:#f7f9fc;border:1px solid #e5ebf5;border-radius:12px}
.qr-box img{width:210px;height:210px;object-fit:contain}
.qr-list{display:flex;flex-wrap:wrap;gap:18px;justify-content:center}
.qr-item{flex:0 0 auto}
.qr-cap{margin:8px 0 0;text-align:center;font-size:13px;color:var(--lgray)}
/* 二维码弹层：一张时居中，两张时并排，窄屏自动换行 */
.modal-box.qr-modal{max-width:520px}
.qr-modal .qr-item{flex:0 1 210px;min-width:0}
.qr-modal .qr-box{padding:12px}
.qr-modal .qr-box img{width:100%;max-width:210px;height:auto}
.mail-form input,.mail-form textarea{width:100%;margin-bottom:12px;padding:11px 13px;border:1px solid #dde5f0;border-radius:8px;
  background:#f7f9fc;color:#12233f;font-size:14px;transition:.15s}
.mail-form input:focus,.mail-form textarea:focus{outline:none;background:#fff;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,123,255,.14)}
.mail-form textarea{min-height:96px;resize:vertical}
.mail-form .btn{width:100%;padding:12px 22px;font-size:15px;border-radius:8px}
.qr-grid{display:flex;flex-wrap:wrap;gap:14px}
.qr-grid img{width:96px;height:96px;object-fit:cover;border:1px solid var(--line)}
.qr-grid span{display:block;text-align:center;font-size:12px;margin-top:4px}
/* 关闭按钮留出上方一条带：压在播放器画面上的点击会被浏览器/微信播放器吃掉（只暂停、关不掉） */
.video-box{max-width:900px;background:#000;padding:44px 10px 10px}
.video-box video{width:100%;max-height:72vh;display:block;border-radius:8px;background:#000}
.video-box .modal-close{z-index:3;background:rgba(255,255,255,.18);color:#fff}
.video-box .modal-close:hover{background:var(--blue);color:#fff}
.video-tip{margin:10px 4px 2px;text-align:center;color:#c9d6ea;font-size:13px}
.video-tip[hidden]{display:none}
.video-tip a{color:#8ecbff;text-decoration:underline}
.img-box{max-width:min(1080px,94vw);background:#000;padding:10px}
.img-box img{display:block;width:100%;max-height:80vh;object-fit:contain;border-radius:8px;background:#000}
.img-box .modal-close{background:rgba(255,255,255,.18);color:#fff}
.img-box .modal-close:hover{background:var(--blue);color:#fff}

/* 产品详情：图片轮播打底，视频浮在上面点了才播 */
.detail-top{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.detail-media{position:relative;height:440px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.dm-slide{position:absolute;inset:0;z-index:1;opacity:0;background:#fff;transition:opacity .5s}
.dm-slide.active{opacity:1}
.dm-slide img{width:100%;height:100%;object-fit:contain;display:block}
.dm-video{position:absolute;left:0;top:34px;width:100%;height:calc(100% - 34px);background:#000;z-index:2}
.dm-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;width:66px;height:66px;border:0;border-radius:50%;cursor:pointer;
  background:rgba(17,17,17,.55);color:#fff;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .18s,transform .18s}
.dm-play:hover{background:var(--red);transform:translate(-50%,-50%) scale(1.06)}
.dm-close{position:absolute;right:8px;top:2px;z-index:5;width:30px;height:30px;border:0;border-radius:50%;cursor:pointer;background:rgba(17,17,17,.6);color:#fff;font-size:18px;line-height:1}
.dm-close:hover{background:var(--red)}
/* 视频打开时顶部让出一条深色条，× 放在条里：压在播放器画面上的点击会被播放器吃掉 */
.detail-media.video-on::before{content:'';position:absolute;left:0;right:0;top:0;height:34px;background:#0b0b0b;z-index:4;pointer-events:none}
.dm-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:1;width:34px;height:56px;border:0;border-radius:6px;cursor:pointer;line-height:1;
  background:rgba(17,17,17,.32);color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center;transition:background .18s}
.dm-arrow:hover{background:rgba(17,17,17,.6)}
.dm-prev{left:8px}
.dm-next{right:8px}
.dm-video[hidden],.dm-play[hidden],.dm-close[hidden]{display:none}
.dm-tip{margin:8px 2px 0;color:var(--lgray);font-size:13px}
.dm-tip[hidden]{display:none}
.dm-gallery{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.dm-thumb{flex:0 0 auto;width:80px;height:80px;padding:0;line-height:0;cursor:pointer;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:6px;transition:border-color .15s,box-shadow .15s}
.dm-thumb img{width:100%;height:100%;object-fit:cover}
.dm-thumb:hover{border-color:#9fd0ff}
.dm-thumb.on{border-color:var(--red);box-shadow:0 0 0 1px var(--red)}

/* ===== Hero / 轮播 ===== */
.hero{margin-top:-60px;padding-top:60px;position:relative;overflow:hidden;background:#000;
  height:100vh;min-height:600px}
.hero video,.hero img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;display:block}
.hero.video-fallback{background-size:cover;background-position:center}
.hero.video-fallback video{opacity:0}
.hero-caption{position:absolute;top:0;left:0;right:0;bottom:0;z-index:2;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:60px 16px 40px;color:#fff;
  background:linear-gradient(rgba(0,0,0,.25),rgba(0,0,0,.45))}
.hero-bg{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#2a2a2a,#111)}
.hero-bg[style*="background-image"]{background-size:cover;background-position:center}
.hero-fallback{position:absolute;top:0;left:0;right:0;bottom:0;z-index:1;background-size:cover;background-position:center;background-color:#111}
.hero-play{position:absolute;right:16px;bottom:16px;z-index:5;width:48px;height:48px;border-radius:50%;border:0;background:#fff;color:#111;font-size:20px;display:none;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.hero-play:hover{background:#eee}
.hero-caption h1{margin:0 0 10px;font-size:36px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.hero-caption p{margin:0;font-size:16px;opacity:.95;text-shadow:0 1px 4px rgba(0,0,0,.5)}

/* 普通轮播（产品中心等） */
.carousel{margin-top:0;padding-top:60px;position:relative;height:420px;overflow:hidden;background:#000}
.carousel .slide{position:absolute;inset:0;opacity:0;transition:opacity .6s;display:flex;align-items:center;justify-content:center;color:#fff;text-align:center}
.carousel .slide.active{opacity:1}
.carousel .slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.carousel .slide .cap{position:relative;z-index:2;background:rgba(0,0,0,.45);padding:18px 26px;border-radius:8px}
.carousel .slide h2{margin:0 0 6px;font-size:30px}
.dots{position:absolute;bottom:14px;left:0;right:0;text-align:center;z-index:3}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.5);margin:0 4px;cursor:pointer}
.dots button.active{background:var(--red)}

/* ===== 区块通用 ===== */
.section{padding:46px 0}
.section h2.title{text-align:center;font-size:26px;margin:0 0 8px}
.section .sub{text-align:center;color:var(--lgray);margin:0 0 30px}
.section.dark{background:var(--gray);color:#fff}
.section.dark .sub{color:#bbb}

/* 产品分类入口 */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px;text-align:center;transition:.15s;color:#222}
.cat-card:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px)}

/* 搜索栏 */
.search-bar{display:flex;max-width:560px;margin:0 auto 10px}
.search-bar input{flex:1;padding:12px 14px;border:1px solid var(--line);border-right:0;border-radius:6px 0 0 6px;font-size:15px}
.search-bar button{background:var(--red);color:#fff;border:0;padding:0 22px;border-radius:0 6px 6px 0;cursor:pointer}

/* 产品中心：搜索栏叠在轮播图上，不再单独占一块区域 */
.carousel-search .search-bar{position:absolute;left:50%;transform:translateX(-50%);bottom:54px;z-index:4;
  width:calc(100% - 32px);max-width:600px;margin:0;box-shadow:0 12px 28px rgba(0,0,0,.3)}
.carousel-search .search-bar input{background:rgba(255,255,255,.97);border-color:#fff}

/* 搜索结果 */
.result-block{margin-top:34px}
.result-block > h3{margin:0 0 14px;font-size:19px;padding-left:11px;border-left:4px solid var(--red)}
.result-more{display:inline-block;margin-top:14px;color:var(--blue-d);font-size:14px}
.result-more:hover{text-decoration:underline}
.result-none{color:var(--lgray);margin:0}

/* 产品列表 每排4个 */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:18px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:transform .18s,box-shadow .18s,border-color .18s}
.product-card:hover{border-color:var(--blue-d);box-shadow:0 0 0 3px rgba(29,78,216,.15),0 14px 32px rgba(23,58,120,.24);transform:scale(1.03)}
.product-thumb{position:relative;aspect-ratio:1/1;background:#f0f0f0}
.product-thumb img{width:100%;height:100%;object-fit:cover}
.product-thumb .badge-video{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:2px 8px;border-radius:4px;cursor:pointer;transition:background .15s}
.product-thumb .badge-video:hover{background:var(--red)}
.product-card .info{padding:12px}
.product-card .info h3{margin:0 0 4px;font-size:15px;line-height:1.4;height:42px;overflow:hidden}
.product-card .info .model{color:var(--lgray);font-size:13px}

/* 合作企业 */
.section.partners-section{padding-bottom:0}
.partner-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}
.partner-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px;text-align:center;color:#222}
.partner-card img{width:100%;height:110px;object-fit:contain;margin:0 auto}
.partner-card span{display:block;margin-top:8px;font-size:14px;color:#222}

/* 关于我们图文：图片靠左定宽，剩下的宽度全给正文 */
.about-row{display:flex;align-items:center;gap:30px;margin-bottom:30px}
.about-row img{flex:0 0 auto;width:38%;max-width:440px;border-radius:10px}
.about-row > div{flex:1 1 auto;min-width:0}
.about-row h3{color:var(--red);margin-top:0}
.prose{color:#444;line-height:1.8;font-size:15px}
.prose p{margin:0 0 12px}
.prose h2,.prose h3,.prose h4{color:var(--red);margin:18px 0 10px}
.prose ul,.prose ol{margin:0 0 12px;padding-left:22px}
.prose li{margin:4px 0}
.prose img{max-width:100%;height:auto;border-radius:8px}
.prose video{display:block;width:100%;max-width:100%;border-radius:8px;background:#000;margin:0 0 12px}
.prose a{color:var(--red);text-decoration:underline}

/* 新闻列表 */
.news-list{display:grid;gap:18px}
.news-item{display:grid;grid-template-columns:200px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.news-item img{width:100%;height:140px;object-fit:cover}
.news-item .meta{padding:16px}
.news-item .tag{display:inline-block;background:var(--red);color:#fff;font-size:12px;padding:2px 10px;border-radius:10px;margin-bottom:6px}
.news-item h3{margin:0 0 6px;font-size:18px}
.news-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:22px;flex-wrap:wrap}
.news-tabs a{padding:8px 18px;border:1px solid var(--line);border-radius:20px;background:#fff}
.news-tabs a.active{background:var(--red);color:#fff;border-color:var(--red)}
.news-keyword{text-align:center;color:var(--lgray);font-size:14px;margin:-12px 0 20px}
.news-keyword a{color:var(--blue-d)}

/* 维修/联系 地图与列表 */
.map-list{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.repair-intro{max-width:900px;margin:0 0 34px;color:#444;line-height:1.8;font-size:15px}
.repair-intro p{margin:0 0 12px}
.repair-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px}
.repair-card h3{margin:0 0 8px;color:var(--red)}
/* 自己拼的高德定位图：不含高德页面自带的按钮和弹层，只留定位点和我们自己的入口 */
.static-map{position:relative;overflow:hidden;width:100%;height:300px;border:1px solid var(--line);border-radius:10px;background:#e8edf2}
.sm-tiles{position:absolute;pointer-events:none}
.sm-tiles img{position:absolute;width:256px;height:256px;display:block}
.sm-pin{position:absolute;left:50%;top:50%;width:20px;height:20px;margin:-29px 0 0 -12px;
  border:2px solid #fff;border-radius:50% 50% 50% 0;background:var(--red);
  box-shadow:0 4px 12px rgba(15,23,42,.35);transform:rotate(-45deg)}
.sm-pin::after{content:'';position:absolute;left:5px;top:5px;width:6px;height:6px;border-radius:50%;background:#fff}
.sm-name{position:absolute;left:10px;top:10px;max-width:70%;padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.94);
  color:#1f2937;font-size:13px;font-weight:600;box-shadow:0 2px 8px rgba(15,23,42,.16);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sm-open{position:absolute;right:10px;bottom:10px;padding:6px 12px;border:1px solid rgba(15,23,42,.06);border-radius:20px;
  background:#fff;color:var(--blue);font-size:13px;text-decoration:none;box-shadow:0 3px 10px rgba(15,23,42,.2)}
.sm-open:hover{color:#1a5fd6;box-shadow:0 5px 16px rgba(15,23,42,.28)}
/* 境外坐标没有可用瓦片，退化成干净的定位卡 */
.sm-none{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:16px;background:linear-gradient(135deg,#eef2f7,#e2e8f0)}
.sm-none .sm-name{position:static;max-width:none;padding:0;background:none;box-shadow:none;font-size:16px}
.sm-none .sm-open{position:static;box-shadow:none;border-color:var(--line)}
/* 联系我们：左侧信息卡 + 右侧大地图 */
.contact-hero{padding:26px 0 6px}
.ch-grid{display:grid;grid-template-columns:minmax(0,380px) minmax(0,1fr);gap:22px;align-items:stretch}
.ch-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 24px;box-shadow:0 10px 30px rgba(15,23,42,.06)}
.ch-card h1{margin:0 0 6px;font-size:24px;color:#111}
.ch-sub{margin:0 0 18px;color:var(--lgray);font-size:14px}
.ch-list{list-style:none;margin:0;padding:0}
.ch-list li{display:flex;gap:12px;align-items:center;padding:12px 0;border-top:1px dashed var(--line)}
.ch-list li:first-child{border-top:0;padding-top:0}
.ch-ico{flex:0 0 34px;width:34px;height:34px;border-radius:9px;background:rgba(200,16,46,.08);color:var(--red);display:flex;align-items:center;justify-content:center}
.ch-ico svg{width:18px;height:18px;display:block}
/* 只给文字列的 b/span 上样式：写成 .ch-list span 会盖掉 .ch-ico 的 display:flex，图标就贴左上角了 */
.ch-list div b{display:block;font-size:12px;font-weight:500;color:var(--lgray);margin-bottom:3px}
.ch-list div span{display:block;font-size:15px;line-height:1.6;color:#1f2937}
.ch-list a{color:#1f2937;text-decoration:none}
.ch-list a:hover{color:var(--red)}
.ch-btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.ch-map{position:relative;min-height:470px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#f3f4f6}
.ch-map .static-map{position:absolute;left:0;top:0;width:100%;height:100%;border:0;border-radius:0}
.ch-map-empty{position:absolute;left:0;top:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;padding:24px;background:linear-gradient(135deg,#eef2f7,#e2e8f0)}
.ch-map-empty p{margin:0;font-size:18px;font-weight:600;color:#1f2937}
.ch-map-empty span{font-size:14px;color:var(--lgray)}

/* 资料中心 */
.res-video{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.res-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.res-card video,.res-card img{width:100%;height:180px;object-fit:cover;background:#000}
.res-card .info{padding:12px}
.res-card .info h3{margin:0 0 6px;font-size:16px}
.pdf-cat{margin-bottom:24px}
.pdf-cat h3{color:var(--red);border-left:4px solid var(--red);padding-left:10px}
.pdf-item{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 16px;margin-bottom:10px;gap:12px}
.pdf-item form{display:flex;align-items:center;gap:8px}
.pdf-item input[type="password"]{padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-size:14px;width:130px}
.pdf-item .dl{pointer-events:auto}
.res-thumb{position:relative}
.res-open{display:block;position:relative;cursor:zoom-in}
/* 卡片里的封面图/首帧视频不接点击：手机浏览器会把落在 <video> 上的手势交给原生播放器，弹窗就点不开了 */
.res-open img,.res-open video{pointer-events:none}
.res-act{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.62);color:#fff;font-size:12px;padding:3px 9px;border-radius:4px;transition:background .15s}
.res-open:hover .res-act{background:var(--red)}
.res-dl{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:4px}
.res-dl input[type="password"]{padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-size:14px;width:130px}
.res-dl .btn.dl{padding:8px 18px;font-size:14px}
/* PDF 行：文件名可点，弹窗在线预览（下载仍走右侧按钮 + 密码） */
.pdf-name{display:flex;align-items:center;gap:8px;min-width:0;color:#1f2937;font-size:15px;text-decoration:none;cursor:zoom-in}
.pdf-name:hover{color:var(--red)}
.pdf-eye{font-size:11px;color:var(--lgray);border:1px solid var(--line);border-radius:10px;padding:1px 8px;white-space:nowrap}
.pdf-name:hover .pdf-eye{color:#fff;background:var(--red);border-color:var(--red)}
.pdf-box{width:min(1120px,94vw);max-width:94vw;height:88vh;padding:0;background:#12233f;display:flex;flex-direction:column}
.pdf-bar{flex:0 0 auto;display:flex;align-items:center;gap:12px;padding:10px 46px 10px 14px}
.pdf-file{min-width:0;font-size:13px;color:#c9d6ea;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pdf-open{margin-left:auto;color:#8ecbff;font-size:13px;text-decoration:none;white-space:nowrap}
.pdf-open:hover{text-decoration:underline}
.pdf-box iframe{flex:1 1 auto;width:100%;border:0;background:#fff}
.pdf-box .video-tip{flex:0 0 auto;margin:0;padding:8px 14px}
.pdf-box .modal-close{background:rgba(255,255,255,.18);color:#fff}
.pdf-box .modal-close:hover{background:var(--blue);color:#fff}

/* 面包屑 */
.crumb{padding:14px 0;font-size:14px;color:var(--lgray)}
.crumb a{color:var(--red)}

/* 分页 */
.pager{display:flex;gap:6px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.pager a{padding:8px 14px;border:1px solid var(--line);border-radius:6px;background:#fff;color:#333}
.pager a.active{background:var(--red);color:#fff;border-color:var(--red)}

/* 邮件入口区块（首页第五位等） */
/* 首页 CTA / Online Booking */
.cta-section{
  position:relative;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  color:#fff;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.55);
  z-index:1;
}
.cta-section .container{position:relative;z-index:2}
.cta-wrap{
  display:grid;
  grid-template-columns:1fr 420px;
  gap:40px;
  align-items:center;
}
.cta-text h2{
  margin:0 0 16px;
  font-size:34px;
  line-height:1.25;
}
.cta-text p{
  margin:0;
  font-size:16px;
  opacity:.9;
  max-width:420px;
}
.cta-card{
  background:#fff;
  border-radius:10px;
  padding:28px;
  color:#222;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.cta-form label{
  display:block;
  margin-bottom:6px;
  font-size:14px;
  font-weight:600;
  color:#333;
}
.cta-input{
  display:flex;
  align-items:flex-start;
  border-bottom:1px solid #ccc;
  margin-bottom:20px;
  padding-bottom:6px;
}
.cta-ico{
  width:24px;
  flex-shrink:0;
  color:#888;
  font-size:18px;
  line-height:1.4;
  margin-right:8px;
}
.cta-input input,
.cta-input textarea{
  flex:1;
  border:0;
  background:transparent;
  padding:0;
  font-size:15px;
  color:#222;
  outline:none;
  resize:none;
  line-height:1.4;
}
.cta-input textarea{min-height:60px}
.cta-submit{
  width:100%;
  background:var(--red);
  color:#fff;
  border:0;
  padding:12px;
  font-size:15px;
  border-radius:4px;
  cursor:pointer;
}
.cta-submit:hover{background:var(--red-d)}

@media (max-width:760px){
  .cta-wrap{grid-template-columns:1fr}
  .cta-text{text-align:center}
  .cta-text h2{font-size:26px}
  .cta-card{padding:22px}
}

/* 页内分割轮播 */
.divider-carousel{padding:0;margin:0}
.divider-carousel .carousel{border-radius:0}

/* 首页热门产品：深蓝渐变科技感 + 发光产品卡片 */
.section.hot-section{position:relative;color:#fff;
  background:linear-gradient(135deg,#021a4d 0%,#063a8f 42%,#0b62d6 80%,#1a7dff 100%)}
.section.hot-section::before{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 340px at 88% -14%,rgba(120,190,255,.34),transparent 70%),
             radial-gradient(620px 320px at 2% 116%,rgba(2,16,60,.5),transparent 72%),
             repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 92px),
             repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 92px)}
.section.hot-section .container{position:relative;z-index:1}
.section.hot-section h2.title{color:#fff;text-shadow:0 2px 14px rgba(0,16,50,.55)}
.section.hot-section .sub{color:rgba(255,255,255,.82)}
.hot-layout{display:grid;grid-template-columns:230px 1fr;gap:22px;margin-top:26px;align-items:start}
/* 右侧栏必须允许收缩到轨道宽度，否则里面按百分比定宽的分类条会把整行撑爆 */
.hot-main{min-width:0}
.hot-cat-side{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:6px 0;
  box-shadow:0 10px 30px rgba(2,16,48,.32)}
.hot-cat-side ul{list-style:none;margin:0;padding:0}
.hot-cat-item{display:flex;align-items:center;gap:9px;padding:12px 14px;color:rgba(255,255,255,.88);font-size:14px;line-height:1.35;transition:.15s}
.hot-cat-side li + li .hot-cat-item{border-top:1px solid rgba(255,255,255,.1)}
.hot-cat-item .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hot-cat-item .chev{flex:0 0 18px;width:18px;height:18px;border:1px solid rgba(255,255,255,.5);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;line-height:1;transition:.15s}
.hot-cat-item:hover{background:rgba(255,255,255,.12);color:#fff}
.hot-cat-item:hover .chev{border-color:#9fd0ff;color:#9fd0ff}
.hot-cat-item.active{background:linear-gradient(90deg,rgba(47,123,255,.95),rgba(120,190,255,.22));color:#fff;font-weight:700;
  box-shadow:inset 3px 0 0 #9fd0ff,0 6px 18px rgba(47,123,255,.45)}
.hot-cat-item.active .chev{border-color:#fff;background:#fff;color:#0b3f8f}

.hot-subbar{display:flex;align-items:center;gap:26px;padding:0 2px 12px;margin:-2px 0 20px;border-bottom:1px solid rgba(255,255,255,.22);overflow-x:auto;-webkit-overflow-scrolling:touch}
.subcat-btn{flex:0 0 auto;position:relative;padding:6px 2px;color:rgba(255,255,255,.8);font-size:15px;white-space:nowrap;transition:.15s}
.subcat-btn:hover{color:#fff}
.subcat-btn.active{color:#fff;font-weight:700}
.subcat-btn.active::after{content:'';position:absolute;left:50%;transform:translateX(-50%);bottom:-12px;width:28px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,#4da3ff,#a8d4ff);box-shadow:0 0 10px rgba(120,190,255,.95)}
.hot-product-grid{grid-template-columns:repeat(5,1fr);gap:14px}
.hot-product-grid .product-card .info{padding:10px}
.hot-product-grid .product-card .info h3{font-size:14px}
.hot-section .product-card{background:#fff;border:1px solid rgba(255,255,255,.6);box-shadow:0 8px 22px rgba(2,16,48,.26)}
.hot-section .product-card:hover{border-color:#8ecbff;transform:translateY(-6px) scale(1.03);
  box-shadow:0 0 0 1px rgba(142,203,255,.95),0 0 20px 4px rgba(94,180,255,.6),0 0 46px 10px rgba(47,123,255,.3),0 18px 38px rgba(2,16,48,.42)}

/* 深蓝热门产品区的分页按钮（产品中心白底版在下方 prod-section 覆盖） */
.hot-section .pager a{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#fff}
.hot-section .pager a:hover{background:rgba(255,255,255,.22);color:#fff}
.hot-section .pager a.active{background:#fff;border-color:#fff;color:#0b3f8f;font-weight:700}

/* ===== 产品中心：白底版式（首页热门产品仍是深蓝科技感，两边互不影响） ===== */
.section.prod-section{background:#fff;color:#222}
.section.prod-section::before{display:none}
.section.prod-section h2.title{color:#222;text-shadow:none}
.section.prod-section .sub{color:var(--lgray)}
.prod-section .hot-cat-side{background:#fff;border-color:var(--line);box-shadow:0 2px 12px rgba(15,35,70,.06)}
.prod-section .hot-cat-item{color:#33465e}
.prod-section .hot-cat-side li + li .hot-cat-item{border-top-color:#eef1f5;border-left-color:#e8ecf2}
.prod-section .hot-cat-item .chev{border-color:#c6d2e2;color:#5b7794}
.prod-section .hot-cat-item:hover{background:#f3f7fd;color:var(--blue)}
.prod-section .hot-cat-item:hover .chev{border-color:var(--blue);color:var(--blue)}
.prod-section .hot-cat-item.active{background:linear-gradient(90deg,#2f7bff,#6fb4ff);color:#fff;
  box-shadow:inset 3px 0 0 rgba(255,255,255,.75),0 4px 12px rgba(47,123,255,.24)}
.prod-section .hot-cat-item.active .chev{border-color:#fff;background:#fff;color:#0b3f8f}
.prod-section .hot-subbar{border-bottom-color:#e8ecf2}
.prod-section .subcat-btn{color:#5a6b80}
.prod-section .subcat-btn:hover{color:var(--blue)}
.prod-section .subcat-btn.active{color:var(--blue)}
.prod-section .subcat-btn.active::after{background:linear-gradient(90deg,#4da3ff,#2f7bff);box-shadow:none}
.prod-section .product-card{border-color:var(--line);box-shadow:0 2px 10px rgba(15,35,70,.06)}
.prod-section .product-card:hover{border-color:#9fd0ff;transform:translateY(-6px) scale(1.03);
  box-shadow:0 0 0 1px rgba(120,180,255,.5),0 14px 28px rgba(15,35,70,.16)}
.prod-section .pager a{background:#fff;border-color:var(--line);color:#33465e}
.prod-section .pager a:hover{background:#f3f7fd;border-color:#9fd0ff;color:var(--blue)}
.prod-section .pager a.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}

/* 分类快切条：一排固定 7 个，多出来的横向滑动查看 */
@media (min-width:761px){
  .prod-section .hot-subbar{scrollbar-width:thin}
  .prod-section .hot-subbar::-webkit-scrollbar{height:6px}
  .prod-section .hot-subbar::-webkit-scrollbar-thumb{background:#c9d6e5;border-radius:3px}
  .prod-section .hot-subbar::-webkit-scrollbar-track{background:transparent}
}
@media (min-width:981px){
  .prod-section .hot-subbar{gap:0}
  .prod-section .subcat-btn{width:calc(100%/7);text-align:center;padding:6px 2px;font-size:14px}
}
@media (min-width:761px) and (max-width:980px){
  .prod-section .hot-subbar{gap:0}
  .prod-section .subcat-btn{width:calc(100%/5);text-align:center;padding:6px 4px}
}

/* 页尾「找不到合适的产品？联系我们」通栏（about/news/products/repair/resources 共用） */
.mail-cta{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  background:linear-gradient(90deg,#fff5f6,#f3f7ff);border:1px solid var(--line);border-left:4px solid var(--red);
  border-radius:10px;padding:20px 22px}
.mail-cta h3{margin:0;font-size:18px}

/* ===== 底部通栏 ===== */
.site-footer{background:var(--gray);color:#ddd;padding:40px 0 18px}
.foot-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;padding:0 16px}
.foot-inner.foot-no-qr{grid-template-columns:1.4fr 1fr}
.site-footer h4{color:#fff;margin:0 0 14px;font-size:16px}
.foot-nav{display:flex;flex-wrap:wrap;gap:8px 16px}
.foot-nav a{color:#ccc;font-size:14px}
.foot-nav a:hover{color:var(--red)}
.foot-contact p{margin:6px 0;font-size:14px}
.foot-bottom{border-top:1px solid #333;margin-top:26px;padding:16px;text-align:center;font-size:13px;color:#999}
.foot-bottom a{color:#bbb}
.qr-grid img{background:#fff;padding:4px;border-radius:6px}

/* ===== 首页滚动入场动效（仅电脑端；js-reveal 标记由 main.js 添加，没有 JS 时内容照常显示） ===== */
@media (min-width:981px){
  html.js-reveal body.home-page{overflow-x:hidden}
  html.js-reveal body.home-page .reveal{opacity:0}
  html.js-reveal body.home-page .reveal.in{animation:revealUp .72s cubic-bezier(.22,.61,.36,1) both}
  html.js-reveal body.home-page .reveal-left.in{animation-name:revealLeft}
  html.js-reveal body.home-page .reveal-zoom.in{animation-name:revealZoom}
}
@keyframes revealUp{from{opacity:0;transform:translateY(32px)}to{opacity:1;transform:none}}
@keyframes revealLeft{from{opacity:0;transform:translateX(-26px)}to{opacity:1;transform:none}}
@keyframes revealZoom{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:none}}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .product-grid{grid-template-columns:repeat(3,1fr)}
  .hot-layout{grid-template-columns:190px 1fr;gap:16px}
  .hot-product-grid{grid-template-columns:repeat(3,1fr)}
  .map-list{grid-template-columns:1fr}
  .about-row{flex-direction:column;align-items:stretch;gap:18px}
  .about-row img{width:100%;max-width:520px}
  .ch-grid{grid-template-columns:1fr}
  .ch-map{min-height:400px}
  .foot-inner{grid-template-columns:1fr}
}
@media (max-width:760px){
  /* ---- 视频弹层关闭：× 加大到好点，且始终留在画面上方那条带里 ---- */
  .video-box{padding:48px 8px 8px}
  .video-box .modal-close{width:34px;height:34px;font-size:21px;right:8px;top:8px}
  .img-box{padding:48px 8px 8px}
  .img-box .modal-close{width:34px;height:34px;font-size:21px;right:8px;top:8px}

  /* ---- 顶部导航：品牌名可省略 + 右侧汉堡 + 下拉面板 ---- */
  .nav-inner{padding:0 12px;justify-content:space-between}
  .brand{flex:1 1 auto;min-width:0;margin-right:10px;font-size:15px;overflow:hidden;text-overflow:ellipsis}
  .nav-toggle{display:block;flex:0 0 auto;width:34px;height:34px;font-size:22px;line-height:1;margin-left:auto}
  .nav-links{position:absolute;top:60px;left:0;right:0;background:rgba(17,17,17,.97);flex-direction:column;align-items:stretch;
    padding:4px 0 12px;display:none;max-height:calc(100vh - 60px);overflow-y:auto;box-shadow:0 14px 28px rgba(0,0,0,.35)}
  .nav-links.open{display:flex}
  .nav-links > a{padding:12px 16px;font-size:15px;border-bottom:1px solid rgba(255,255,255,.07)}
  .nav-links > a.active{background:rgba(47,123,255,.16)}
  .lang-btns{margin:12px 16px 0;gap:10px}
  .lang-btn{flex:1;text-align:center;padding:9px 0}
  .nav-search-btn{width:auto;justify-content:flex-start;gap:10px;margin:4px 16px 0;padding:11px 14px;font-size:15px}
  .nav-search-btn .ns-txt{display:inline}
  .nav-search-panel{padding:12px}
  .nav-search-form{max-width:100%}
  .nav-search-form input{font-size:16px}

  /* ---- 区块留白 ---- */
  .container{padding:0 12px}
  .section{padding:28px 0}
  .section h2.title{font-size:20px;margin-bottom:6px}
  .section .sub{font-size:13px;margin-bottom:18px}

  /* ---- 联系我们 ---- */
  .contact-hero{padding:16px 0 2px}
  .ch-card{padding:20px 16px;border-radius:12px}
  .ch-card h1{font-size:20px}
  .ch-list div span{font-size:14px}
  .ch-map{min-height:330px}

  /* ---- 产品详情：主图 + 浮层视频 ---- */
  .detail-top{grid-template-columns:1fr;gap:18px}
  .detail-media{height:300px}
  .dm-arrow{width:28px;height:44px;font-size:20px}
  .dm-play{width:52px;height:52px;font-size:18px}
  .dm-close{width:26px;height:26px;font-size:16px;right:6px;top:4px}
  .dm-thumb{width:58px;height:58px}

  /* ---- 首页视频 / 标题 ---- */
  .hero{height:300px}
  .hero-caption{padding:52px 12px 30px}
  .hero-caption h1{font-size:21px;margin:0 0 6px}
  .hero-caption p{font-size:13px}
  .hero-play{display:flex;width:24px;height:24px;font-size:10px;background:#fff;color:#111;right:12px;bottom:12px}
  .carousel{height:200px}
  .carousel .slide .cap{padding:12px 16px}
  .carousel .slide h2{font-size:19px}
  .carousel .slide .cap p{font-size:13px}
  .carousel-search{height:240px}
  .carousel-search .search-bar{bottom:34px}
  .carousel-search .search-bar input{padding:9px 12px;font-size:14px}
  .carousel-search .search-bar button{padding:0 16px;font-size:14px}

  /* ---- 产品列表 ---- */
  .product-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}
  .product-card .info{padding:9px}
  .product-card .info h3{font-size:13.5px;height:36px;line-height:1.35}
  .product-card .info .model{font-size:12px}
  .product-thumb .badge-video{font-size:10px;padding:1px 6px;left:6px;bottom:6px}

  /* ---- 首页热门产品：分类横滑 + 两列产品 ---- */
  .hot-layout{grid-template-columns:1fr;gap:12px;margin-top:16px;min-width:0}
  .hot-main{min-width:0}
  .hot-cat-side{padding:0;overflow:hidden}
  .hot-cat-side ul{display:flex;flex-direction:row;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:4px}
  .hot-cat-side ul::-webkit-scrollbar{display:none}
  .hot-cat-side li{flex:0 0 auto}
  .hot-cat-side li + li .hot-cat-item{border-top:0;border-left:1px solid rgba(255,255,255,.14)}
  .hot-cat-item{white-space:nowrap;padding:9px 13px;font-size:13px}
  .hot-cat-item .chev{display:none}
  .hot-subbar{gap:16px;margin:-2px 0 14px;padding-bottom:10px;scrollbar-width:none}
  .hot-subbar::-webkit-scrollbar{display:none}
  .subcat-btn{font-size:14px}
  .subcat-btn.active::after{bottom:-10px;width:22px;height:2px}
  .hot-product-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .hot-product-grid .product-card .info{padding:9px}
  .hot-product-grid .product-card .info h3{font-size:13.5px;height:36px;line-height:1.35}

  .news-item{grid-template-columns:1fr}
  .news-item img{height:180px}
  .float-bar{right:10px;bottom:14px;top:auto;transform:none;flex-direction:row}
  .fb{width:46px;height:46px}
  .fb .fb-txt{display:none}
}
@media (max-width:460px){
  .product-grid{grid-template-columns:1fr 1fr;gap:10px}
  .hero{height:250px}
  .hero-caption h1{font-size:18px}
  .hero-caption p{font-size:12px}
  .section h2.title{font-size:18px}
  .hot-cat-item{padding:8px 11px;font-size:12.5px}
  .subcat-btn{font-size:13px}
}