:root{
  --brand:#1565c0;        /* 科技蓝 */
  --brand-dark:#0b3d91;
  --brand-deep:#0a2f6b;
  --brand-soft:#eaf2fb;
  --accent:#f59e0b;       /* 强调橙 */
  --accent-dark:#d97706;
  --text:#23272e;
  --muted:#6b7682;
  --line:#e3e8ef;
  --bg:#f6f8fb;
  --white:#ffffff;
  --radius:10px;
  --shadow:0 8px 26px rgba(11,61,145,.10);
  --maxw:1200px;

  /* ===== 品牌语义色板（校准补充） ===== */
  --gradient-brand:linear-gradient(135deg,#1565c0,#0a2f6b); /* 品牌渐变：科技蓝 */
  --gradient-accent:linear-gradient(135deg,#f59e0b,#ea580c); /* 强调渐变：橙 */
  --success:#16a34a;   /* 成功/保障绿 */
  --info:#0284c7;      /* 信息蓝 */
  --warning:#f59e0b;   /* 警示橙 */
  --danger:#dc2626;    /* 危险红 */
  --surface:#ffffff;   /* 卡片/表面 */
  --focus-ring:0 0 0 3px var(--brand-soft); /* 焦点环 */
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:15px;overflow-x:clip}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.btn{display:inline-block;padding:11px 28px;border-radius:var(--radius);font-weight:600;transition:.2s;cursor:pointer;border:none;font-size:15px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{border:1px solid var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#fff}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:var(--brand-soft)}
.btn-outline-light{border:1px solid rgba(255,255,255,.85);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.16)}

/* ================= 顶部信息条 ================= */
.top-bar{background:var(--brand-deep);color:#cdddf0;font-size:13px;position:sticky;top:0;z-index:103}
.top-bar-inner{display:flex;justify-content:space-between;align-items:center;height:40px}
.tb-right{display:flex;gap:24px;align-items:center}
.tb-tel{color:#fff;font-size:14px}
.tb-wechat a{color:#fff;border:1px solid rgba(255,255,255,.4);padding:2px 12px;border-radius:20px;font-size:12px;transition:.2s}
.tb-wechat a:hover{background:#fff;color:var(--brand-deep)}

/* ================= 头部导航 ================= */
.site-header{position:sticky;top:40px;z-index:102;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:2px solid var(--brand);box-shadow:0 2px 12px rgba(10,47,107,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo-text{font-size:24px;font-weight:800;color:var(--brand-dark);letter-spacing:2px}
.logo-text em{font-style:normal;color:var(--accent)}
.main-nav{display:flex;align-items:center}
.nav-item{position:relative;padding:0 15px;height:76px;display:flex;align-items:center}
.nav-item>a{font-size:16px;color:var(--text);position:relative;padding:6px 0;display:flex;align-items:center;gap:4px;font-weight:500;white-space:nowrap}
.nav-item>a:hover{color:var(--brand)}
.nav-item.active>a{color:var(--brand)}
.nav-item.active>a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:var(--accent);border-radius:2px}
.navbar-text{white-space:nowrap}
.caret{font-size:10px;color:var(--muted);transition:transform .2s}
.nav-item:hover .caret{transform:rotate(180deg);color:var(--brand)}
.subnav{display:none;position:absolute;top:100%;left:0;min-width:170px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 0;z-index:300}
/* 仅在支持 hover 的精确指针设备（桌面鼠标）上用悬停展开；触屏无 hover，改由 JS 点击展开，避免二级菜单死结 */
@media (hover:hover) and (pointer:fine){
  .nav-item:hover .subnav{display:block;animation:fadeIn .18s ease}
}
.subnav a{display:block;padding:10px 20px;font-size:14px;color:var(--text);white-space:nowrap;transition:.15s}
.subnav a:hover{color:var(--brand);background:var(--brand-soft)}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.header-cta{margin-left:16px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:3px;background:var(--brand-dark);border-radius:2px;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ================= Banner 轮播 ================= */
.banner{position:relative;overflow:hidden}
.banner-track{display:flex;transition:transform .8s ease}
.banner-slide{position:relative;min-width:100%;color:#fff;overflow:hidden}
.banner-inner{padding:0 20px}
.banner-title{font-size:46px;font-weight:800;line-height:1.3;margin-bottom:16px;max-width:700px;letter-spacing:1px}
.banner-sub{font-size:18px;color:rgba(255,255,255,.88);max-width:620px;margin-bottom:32px}
.banner-btns{display:flex;gap:16px}
.banner-dots{position:absolute;bottom:26px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:10}
.banner-dots i{width:26px;height:4px;border-radius:3px;background:rgba(255,255,255,.4);cursor:pointer;transition:.2s}
.banner-dots i.on{background:var(--accent)}
.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:46px;height:46px;border-radius:50%;background:rgba(0,0,0,.28);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;transition:.2s;opacity:0}
.banner:hover .banner-arrow{opacity:1}
.banner-arrow:hover{background:rgba(0,0,0,.5)}
.banner-prev{left:20px}
.banner-next{right:20px}

/* ===== 首页幻灯片（banner 体系，图片式） ===== */
.banner-img{display:block;width:100%;height:520px;object-fit:cover}
.banner-caption{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:2;text-align:center;pointer-events:none;padding:0 20px}
.banner-caption .banner-title{max-width:none;margin-bottom:12px;text-shadow:0 2px 12px rgba(0,0,0,.45)}
.banner-caption .banner-sub{max-width:none;margin-bottom:0;text-shadow:0 2px 10px rgba(0,0,0,.4)}
/* 标题入场动画 */
.banner-slide .banner-title,.banner-slide .banner-sub{opacity:0;transform:translateY(26px)}
.banner-slide.active .banner-title{animation:bxUp .9s ease .15s forwards}
.banner-slide.active .banner-sub{animation:bxUp .9s ease .4s forwards}
@keyframes bxUp{to{opacity:1;transform:translateY(0)}}
@media only screen and (max-width:768px){
  .banner-img{height:300px}
  .banner-caption .banner-title{font-size:26px}
  .banner-caption .banner-sub{font-size:14px}
}

/* ================= 通用区块 ================= */
.section{padding:72px 0}
.section-alt{background:var(--brand-soft)}
.sec-head{margin-bottom:40px}
.section-title{text-align:center;font-size:30px;margin-bottom:10px;letter-spacing:1px;color:var(--brand-dark);position:relative;padding-bottom:14px}
h1.section-title{margin:0 0 10px}
.section-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:3px;background:var(--accent);border-radius:2px}
.section-sub{text-align:center;color:var(--muted);margin-bottom:0}
.sec-more{text-align:center;margin-top:36px}

/* 卡片网格 */
.grid{display:grid;gap:26px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;box-shadow:0 2px 8px rgba(10,47,107,.04)}
.card:hover{box-shadow:var(--shadow);transform:translateY(-5px)}
.card .thumb{aspect-ratio:4/3;background:linear-gradient(135deg,var(--brand-soft),#dcebfa);display:flex;align-items:center;justify-content:center}
.card .thumb-ico{font-size:46px;color:var(--brand);opacity:.7}
.card-product .thumb{aspect-ratio:1/1}
.card-product .body{text-align:center}
.card .body{padding:12px}
.card h3{font-size:17px;margin-bottom:6px;color:var(--brand-dark)}
.card h3 a:hover{color:var(--brand)}
.card .desc{color:var(--muted);font-size:13px;line-height:1.6;height:42px;overflow:hidden}
.card .tag {display: block; text-align:right; font-size: 13px; color: var(--brand); font-weight: 600; margin-top: 10px; margin-right:10px;}
.card .tag a {color: inherit; text-decoration: none;}
.card .tag a:hover {color: var(--accent-dark);}

/* 优势卡 */
.feat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center;transition:.25s}
.feat:hover{box-shadow:var(--shadow);transform:translateY(-5px);border-color:var(--brand)}
.feat-ico{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:26px}
.feat h3{font-size:18px;color:var(--brand-dark);margin-bottom:10px}
.feat p{color:var(--muted);font-size:14px}

/* 关于区块 */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-media{aspect-ratio:4/3;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.about-media-ico{font-size:110px;color:rgba(255,255,255,.5)}
.about-text .section-title{text-align:left}
.about-text .section-title::after{left:0;transform:none}
.about-text>p{color:var(--text);line-height:1.9}
.about-stats{display:flex;gap:34px;margin:26px 0 30px}
.about-stats .stat .n{font-size:34px;font-weight:800;color:var(--brand);font-family:"Consolas",monospace}
.about-stats .stat .l{font-size:13px;color:var(--muted)}

/* 新闻两栏 */
.news-col{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;border-top:3px solid var(--brand);transition:box-shadow .25s ease,transform .25s ease}
.news-col:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.news-col-title{font-size:19px;color:var(--brand-dark);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--line)}
.news-item{position:relative;display:flex;align-items:center;gap:12px;padding:12px 10px;margin:2px 0;border-radius:6px;border-bottom:1px solid var(--line);transition:padding .2s ease,background .2s ease}
.news-item:last-child{border-bottom:none}
.news-item::after{content:"";position:absolute;left:10px;bottom:1px;height:2px;width:0;background:var(--brand);border-radius:1px;transition:width .25s ease}
.news-item:hover::after{width:calc(100% - 20px)}
.news-item:hover{background:var(--brand-soft);padding-left:16px}
.news-tag{flex-shrink:0;font-size:12px;line-height:1;padding:5px 10px;border-radius:20px;background:var(--brand-soft);color:var(--brand);font-weight:600;letter-spacing:.3px;transition:.2s}
.news-wrap .news-col + .news-col .news-tag{background:#fef3e2;color:var(--accent-dark)}
.news-item:hover .news-tag{background:var(--brand);color:#fff}
.news-wrap .news-col + .news-col .news-item:hover .news-tag{background:var(--accent);color:#fff}
.news-title{flex:1;color:var(--text);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .2s ease}
.news-item:hover .news-title{color:var(--brand)}
.news-wrap .news-col + .news-col .news-item:hover .news-title{color:var(--accent-dark)}
.news-date-right{flex-shrink:0;color:var(--muted);font-size:12px;font-family:"Consolas",monospace;padding-right:3px}
.news-more{display:inline-block;margin-top:16px;padding:7px 20px;border:1px solid var(--brand);border-radius:20px;color:var(--brand);font-size:13px;font-weight:600;transition:.2s}
.news-more:hover{background:var(--brand);color:#fff}

/* CTA 横幅 */
.cta{background:linear-gradient(120deg,var(--brand-deep) 0%,var(--brand) 100%);color:#fff;padding:56px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-text h2{font-size:28px;margin-bottom:6px}
.cta-text p{color:rgba(255,255,255,.85)}
.cta-btns{display:flex;gap:16px}

/* ================= 左栏 + 右栏内页布局 ================= */
.page-layout{display:grid;grid-template-columns:260px 1fr;gap:34px;padding:44px 0 60px;align-items:start}
.page-side{position:sticky;top:100px}
.side-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:26px;overflow:hidden}
.side-title{background:var(--brand);color:#fff;font-size:16px;font-weight:700;padding:14px 20px;letter-spacing:1px}
.side-menu li{border-bottom:1px solid var(--line)}
.side-menu li:last-child{border-bottom:none}
.side-menu a{display:block;padding:12px 20px;font-size:14px;color:var(--text);transition:.15s;position:relative}
.side-menu a:hover{color:var(--brand);background:var(--brand-soft);padding-left:26px}
.side-menu li.active a{color:var(--brand);font-weight:700;background:var(--brand-soft)}
.side-menu li.active a::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent)}
.side-contact{padding:18px 20px}
.side-contact li{font-size:14px;color:var(--muted);margin-bottom:10px;line-height:1.6}
.side-contact .sc-tel{color:var(--brand-dark);font-weight:700;font-size:17px}
.side-contact .sc-wechat{color:var(--brand);font-weight:600}
.side-contact .sc-wechat:hover{color:var(--accent-dark)}
.page-main{min-width:0}

/* 面包屑 / 分页 */
.breadcrumb{padding:0 0 18px;color:var(--muted);font-size:13px}
.breadcrumb a:hover{color:var(--brand)}
.pager{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.pager a,.pager span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);font-size:14px;color:var(--text);transition:.15s}
.pager a:hover{color:var(--brand);border-color:var(--brand)}
.pager .current{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 新闻时间线列表 */
.news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.news-row{display:flex;align-items:center;gap:20px;padding:22px 26px;border-bottom:1px solid var(--line);transition:.15s}
.news-row:last-child{border-bottom:none}
.news-row:hover{background:var(--brand-soft)}
.nr-date{width:104px;text-align:center;flex-shrink:0;color:var(--brand);border-right:2px solid var(--line);padding-right:14px}
.nr-date b{display:block;font-size:24px;font-family:"Consolas",monospace;line-height:1.2;white-space:nowrap}
.nr-date span{font-size:12px;color:var(--muted)}
.nr-body{flex:1;min-width:0}
.nr-body h3{font-size:16px;color:var(--text);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nr-body p{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nr-arrow{color:var(--brand);font-size:18px;flex-shrink:0}
.news-row:hover .nr-body h3{color:var(--brand)}

/* ================= 详情页 ================= */
.detail-hero{display:grid;grid-template-columns:340px 1fr;gap:36px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;margin-bottom:28px}
.detail-hero .media{aspect-ratio:1/1;background:#fff;border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}
.detail-hero .media .thumb-ico{font-size:90px;color:var(--brand);opacity:.7}
.dinfo{padding-right:16px}
.dinfo h1{font-size:24px;color:var(--brand-dark);margin-bottom:10px}
.ddesc{color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.spec-list{margin:8px 0 0}
.spec-list.spec-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:20px}
.spec-list.spec-grid li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px}
.spec-list li:last-child{border-bottom:none}
.spec-list li span{color:var(--muted);flex:0 0 auto}
.spec-list li b{color:var(--text);text-align:right;font-weight:600}
.dbtns{display:flex;justify-content:flex-end;gap:14px;margin-top:24px}
.dbtns-pad{padding-right:50px}
.detail-cover img{max-width:100%;border-radius:6px;display:block;margin:0 auto}
.detail-content{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.detail-title{font-size:26px;color:var(--brand-dark);text-align:center;margin-bottom:12px}
.detail-meta{text-align:center;color:var(--muted);font-size:14px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:24px}
.detail-nav{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px 26px;margin-top:26px;font-size:14px}
.detail-nav p{color:var(--muted);padding:6px 0;word-break:break-all}
.detail-nav a:hover{color:var(--brand)}

/* 单页（关于等） */
.single-page .single-title{font-size:26px;color:var(--brand-dark);text-align:center;margin-bottom:20px;padding-bottom:16px;border-bottom:2px solid var(--line)}

/* ================= 表单 / 留言 ================= */
.form-box{max-width:600px;margin:48px auto 0;background:var(--white);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);padding:32px}
.msg-title{margin:48px 0 20px;font-size:22px;color:var(--brand-dark)}
.msg-card{padding:22px 24px}
.msg-nick{font-weight:700;color:var(--brand-dark)}
.msg-content{color:var(--text);margin:8px 0}
.msg-date{color:var(--muted);font-size:13px}
.msg-reply{background:var(--brand-soft);border-left:4px solid var(--accent);padding:14px 18px;border-radius:0 8px 8px 0;margin-top:12px;color:var(--text);font-size:14px}
.code-row{display:flex;gap:12px}
.form-submit{text-align:center;margin-top:24px}
.form-box h3{text-align:center;margin-bottom:24px;font-size:22px;color:var(--brand-dark)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;margin-bottom:6px;color:var(--text)}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius);font-size:14px;font-family:inherit;transition:.15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.field textarea{min-height:120px;resize:vertical}
.contact-info{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:0}
.contact-info .item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;transition:.2s}
.contact-info .item:hover{box-shadow:var(--shadow)}
.contact-info .item .ic{font-size:30px;color:var(--brand);margin-bottom:8px}
.contact-info .item div{font-weight:600;color:var(--brand-dark)}
.contact-info .item p{color:var(--muted);font-size:13px;margin-top:6px}
.codeimg{height:44px;border-radius:var(--radius);cursor:pointer}

/* ================= 页脚 ================= */
.site-footer{background:var(--brand-deep);color:#c9d8ec;padding:54px 0 26px;margin-top:20px}
.site-footer a{color:#c9d8ec}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;margin-bottom:16px;font-size:16px;letter-spacing:1px}
.site-footer .f-desc{font-size:14px;line-height:1.9;margin-bottom:16px}
.site-footer .f-contact{font-size:14px;margin-bottom:8px;color:#9fb4d0}
.site-footer .f-links li{margin-bottom:10px;font-size:14px}
.site-footer .f-links a:hover{color:#fff;padding-left:4px}
.site-footer .f-qr{width:132px;height:132px;border-radius:var(--radius);background:#fff;padding:6px;object-fit:contain}
.site-footer .f-qr-tip{font-size:12px;color:#9fb4d0;margin-top:8px}
.site-footer .bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;text-align:center;font-size:13px;color:#8aa6c4}

/* ================= 在线客服悬浮 + 微信弹窗 ================= */
.online-float{position:fixed;right:18px;bottom:90px;z-index:900;display:flex;flex-direction:column;gap:12px}
.of-item{width:48px;height:48px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow);transition:.2s;background:var(--brand)}
.of-item:hover{transform:translateY(-3px)}
.of-wechat{background:var(--accent);color:#fff}
.of-top{background:#4b5563;color:#fff}
.of-ico{font-size:18px;line-height:1}
.of-txt{font-size:11px;margin-top:2px}
.wechat-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:99999;background:rgba(10,20,40,.6);align-items:center;justify-content:center}
.wechat-box{position:relative;background:#fff;border-radius:14px;padding:28px 32px;text-align:center;max-width:320px;box-shadow:0 16px 50px rgba(0,0,0,.3)}
.wechat-box img{width:220px;height:220px;object-fit:contain;display:block;margin:0 auto}
.wechat-box p{color:#666;font-size:14px;margin:14px 0 0;letter-spacing:1px}
.wechat-close{position:absolute;top:8px;right:16px;font-size:28px;line-height:1;cursor:pointer;color:#999;background:none;border:none}
.wechat-close:hover{color:#333}

/* 搜索页 */
.search-form{display:flex;gap:12px;max-width:560px;margin:0 auto 36px}
.search-item{padding:22px 24px}
.search-title{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--brand-dark)}
.search-title a:hover{color:var(--brand)}
.search-date{color:var(--brand);font-size:13px;margin-bottom:8px}
.search-desc{color:var(--muted);font-size:14px}
.tag-card{display:block;padding:18px 24px}
.tag-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.tag-title{font-size:16px;font-weight:600;color:var(--brand-dark)}
.tag-badge{background:var(--brand);color:#fff;font-size:12px;padding:2px 10px;border-radius:20px}
.tag-badge--accent{background:var(--accent)}
.tag-badge--muted{background:var(--muted)}
.tag-date{color:var(--muted);font-size:13px;margin-left:auto}
.search-form input{flex:1;padding:13px 18px;border:1px solid var(--line);border-radius:var(--radius);font-size:15px}
.search-form input:focus{outline:none;border-color:var(--brand)}
.empty-tip{text-align:center;padding:48px;color:var(--muted)}

/* 404 */
.notfound{text-align:center;padding:120px 20px}
.notfound .code{font-size:120px;color:var(--accent);font-weight:800}
.notfound p{color:var(--muted);margin:8px 0 24px}

/* 子栏目导航（横向） */
.sortnav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.sortnav .sn-item{padding:8px 18px;border:1px solid var(--line);border-radius:30px;background:var(--white);font-size:14px;transition:.15s}
.sortnav .sn-item:hover,.sortnav .sn-item.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ================= 响应式 ================= */
@media(max-width:1100px){
  .page-layout{grid-template-columns:1fr}
  .page-side{position:static;order:2}
  .page-main{order:1}
  .about-wrap,.detail-hero{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr 1fr}
  .banner-title{font-size:34px}
  .banner-slide{padding:80px 0}
  /* 平板端：导航收紧，避免 769-1100px 文字折行；隐藏注册/登录避免折行 */
  .nav-item{padding:0 9px}
  .nav-item>a{font-size:15px}
  .header-cta{margin-left:6px;padding:9px 12px;font-size:13px}
  .navbar-text{display:none}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .main-nav{position:fixed;top:0;right:0;width:280px;height:100vh;background:#fff;flex-direction:column;align-items:flex-start;padding:90px 26px;box-shadow:-8px 0 30px rgba(0,0,0,.15);transition:transform .3s ease;z-index:200;transform:translateX(100%)}
  .main-nav.open{transform:translateX(0)}
  .nav-item{padding:0;height:auto;margin:6px 0;width:100%}
  .nav-toggle{display:flex;z-index:210}
  .header-cta{display:none}
  /* 移动端：二级菜单改为抽屉内静态流式，点击父项（.open）展开，触屏可触达 */
  .nav-item .subnav{position:static;min-width:0;box-shadow:none;border:none;background:transparent;padding:0 0 0 14px;margin:4px 0}
  .nav-item.open .subnav{display:block}
  .nav-item .caret{transition:transform .2s}
  .nav-item.open .caret{transform:rotate(180deg)}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .contact-info{grid-template-columns:1fr}
  .cta-inner{justify-content:center;text-align:center}
  .banner-title{font-size:28px}
  .banner-sub{font-size:15px}
  .top-bar .tb-welcome{display:none}
}
@media(max-width:520px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr}
  .about-stats{flex-wrap:wrap;gap:20px}
  .detail-hero{grid-template-columns:1fr;padding:20px}
  .spec-list{padding-right:44px}
  .spec-list.spec-grid{column-gap:12px}
  .spec-list.spec-grid li{gap:6px;font-size:13px}
  .spec-list.spec-grid li b{font-weight:600}
}
@media(max-width:340px){
  .spec-list.spec-grid li{flex-direction:column;align-items:flex-start;gap:2px}
  .spec-list.spec-grid li b{text-align:left}
}

/* 内容图片（卡片缩略图 / 详情大图） */
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.card .thumb{background:#eef3fa}
.detail-hero .media img{width:100%;height:100%;object-fit:cover;display:block}

/* 资质证书列表缩略图：竖版比例 + 完整显示（避免竖版证书被裁切） */
.card .case-thumb{aspect-ratio:4/3;background:#fff}
.card .case-thumb img{object-fit:contain;padding:12px;background:#fff}
.card-zizhi .case-thumb{aspect-ratio:5/7;background:#fff} /* 资质证书为竖版，独立竖框比例 */
.about-media-img{width:100%;height:100%;object-fit:cover;border-radius:inherit}


/* ===== 语义化 SVG 图标尺寸（P3 品牌升级） ===== */
.feat-ico svg{width:30px;height:30px}
.about-media-ico svg{width:100px;height:100px}
.of-ico svg{width:20px;height:20px;display:block}
.banner-arrow svg{width:22px;height:22px}
.contact-info .item .ic svg{width:30px;height:30px;display:block;margin:0 auto}
.sc-tel svg{width:16px;height:16px;vertical-align:-2px;margin-right:6px}
.cta-btns .btn svg{width:16px;height:16px;vertical-align:-2px;margin-right:6px}

/* ===== 产品筛选器 ===== */
.filter-bar{background:var(--brand-soft);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin:0 0 26px}
.filter-row{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px}
.filter-row:last-child{margin-bottom:0}
.filter-label{flex:0 0 80px;color:var(--muted);font-size:14px;line-height:30px;white-space:nowrap}
.filter-tags{display:flex;flex-wrap:wrap;gap:8px}
.filter-tag{display:inline-block;padding:4px 15px;font-size:14px;color:var(--text);background:var(--white);border:1px solid var(--line);border-radius:999px;transition:all .2s}
.filter-tag:hover{border-color:var(--accent);color:var(--accent)}
.filter-tag.active{background:var(--accent);border-color:var(--accent);color:#fff}
@media (max-width:576px){.filter-row{flex-direction:column;gap:6px}.filter-label{flex:none}}

/* 留言页：统一上下留白，与内容区协调 */
.section-contact{padding-top:48px;padding-bottom:48px}

/* ===== 栏目大屏页头（comm/top.html）：后台横幅为背景 + 遮罩 ===== */
.page-banner{position:relative;background-color:var(--brand-dark);background-size:cover;background-position:center;color:#fff;padding:60px 0 64px;overflow:hidden}
.page-banner-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,47,107,.82),rgba(21,101,192,.30))}
.page-banner-inner{position:relative;z-index:2}
.page-banner-title{font-size:34px;font-weight:800;letter-spacing:1px;line-height:1.3;margin:0 0 6px;color:#fff}
.page-banner-sub{font-size:15px;color:rgba(255,255,255,.9);margin:0}
@media (max-width:768px){
  .page-banner{padding:40px 0 42px}
  .page-banner-title{font-size:26px}
  .page-banner-sub{font-size:13px}
}

/* 视觉隐藏但保留给搜索引擎/读屏软件（H1 语义标注用，不影响排版） */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== 正文排版统一规范 =====
   目的：编辑器里的内容「不写行内样式」也能获得与招商合作页一致的排版。
   新录入内容自动继承；已有内容的行内样式可逐步清理。
   作用域：.detail-body（about/news/product/case/job/zizhi 六个模板共用） */
.detail-body{font-size:16px;line-height:1.9;color:var(--text)}
.detail-body p{margin:0 0 15px;text-indent:2em}
.detail-body h2,.detail-body h3,.detail-body h4{
  text-indent:0;color:var(--brand-dark);font-weight:600;line-height:1.5;
  margin:32px 0 14px;padding-left:12px;border-left:4px solid var(--brand)}
.detail-body h2{font-size:22px}
.detail-body h3{font-size:19px}
.detail-body h4{font-size:17px}
.detail-body img{max-width:100%;height:auto;display:block;margin:22px auto;border-radius:var(--radius)}
.detail-body ul,.detail-body ol{margin:0 0 16px;padding-left:2.2em;line-height:1.9}
.detail-body li{margin-bottom:8px}
.detail-body a{color:var(--brand)}
.detail-body a:hover{text-decoration:underline}
.detail-body strong,.detail-body b{color:var(--brand-dark);font-weight:600}
.detail-body blockquote{border-left:4px solid var(--accent);background:var(--brand-soft);
  padding:12px 16px;margin:16px 0;color:var(--muted)}
.detail-body blockquote p{margin:0;text-indent:0}
.detail-body table{width:100%;border-collapse:collapse;margin:16px 0}
.detail-body th,.detail-body td{border:1px solid var(--line);padding:9px 12px;font-size:14px}
.detail-body th{background:var(--brand-soft);color:var(--brand-dark)}
.detail-body hr{border:0;border-top:1px solid var(--line);margin:26px 0}
@media(max-width:768px){
  .detail-body{font-size:15px}
  .detail-body h2{font-size:20px}
  .detail-body h3{font-size:18px}
}