/* =========================================================
   云南追溯科技有限公司 · 企业官网
   纯手写 CSS，无任何外部依赖
   ========================================================= */
:root{
  --primary:#2563eb;
  --primary-d:#1d4ed8;
  --primary-l:#eaf1ff;
  --violet:#4f46e5;
  --gold:#c79a2e;
  --gold-l:#f7edd6;
  --ink:#16233a;
  --ink-2:#33415c;
  --sub:#6b7a90;
  --line:#e6ecf5;
  --soft:#f4f8ff;
  --white:#fff;
  --ok:#0ea36b;
  --radius:14px;
  --radius-s:10px;
  --shadow:0 10px 30px rgba(23,58,110,.08);
  --shadow-h:0 16px 40px rgba(23,58,110,.16);
  --maxw:1200px;
  --nav-h:70px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);background:#fff;line-height:1.7;font-size:15px;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font-family:inherit;font-size:15px}
.container{width:min(100% - 40px,var(--maxw));margin-inline:auto}

/* ---------- 通用色块/文字 ---------- */
.grad-text{background:linear-gradient(92deg,var(--primary),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.gold{color:var(--gold)}

/* ---------- 入场动画（仅在有 JS 时启用；无 JS 时内容始终可见） ---------- */
html.js .reveal{opacity:0;transform:translateY(26px);
  transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html.js .reveal{opacity:1;transform:none;transition:none}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;transition:.25s;white-space:nowrap;line-height:1}
.btn svg{width:16px;height:16px}
.btn-primary{background:linear-gradient(120deg,var(--primary),var(--violet));color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(37,99,235,.36)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid #cfe0ff}
.btn-ghost:hover{background:var(--primary-l);border-color:var(--primary)}
.btn-gold{background:linear-gradient(120deg,#e0b652,var(--gold));color:#3b2c08}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(199,154,46,.35)}
.btn-line{border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- 顶部工具条 ---------- */
.topbar{background:#0f2340;color:#c9d8ef;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar .tb-l{display:flex;align-items:center;gap:18px}
.topbar .tb-l span{display:inline-flex;align-items:center;gap:6px}
.topbar .tb-l svg{width:14px;height:14px;opacity:.85}
.topbar a:hover{color:#fff}
.topbar .tb-r{display:flex;align-items:center;gap:16px}
.topbar .anniv{background:linear-gradient(120deg,#e0b652,var(--gold));color:#3a2b06;font-weight:700;
  padding:2px 12px;border-radius:999px;font-size:12px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;height:var(--nav-h);gap:22px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{height:44px;width:auto}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-menu>li>a{display:block;padding:0 16px;height:var(--nav-h);line-height:var(--nav-h);font-size:15.5px;font-weight:600;color:var(--ink-2);position:relative;transition:.2s}
.nav-menu>li>a::after{content:"";position:absolute;left:16px;right:16px;bottom:18px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--violet));transform:scaleX(0);transition:.25s}
.nav-menu>li>a:hover,.nav-menu>li.active>a{color:var(--primary)}
.nav-menu>li>a:hover::after,.nav-menu>li.active>a::after{transform:scaleX(1)}
.has-drop{position:relative}
.drop{position:absolute;top:calc(var(--nav-h) - 8px);left:0;min-width:210px;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow-h);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s}
.has-drop:hover .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:8px;font-size:14.5px;color:var(--ink-2)}
.drop a:hover{background:var(--primary-l);color:var(--primary)}
.drop a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);flex:0 0 auto}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-btn{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;color:var(--sub)}
.search-btn:hover{border-color:var(--primary);color:var(--primary)}
.search-btn svg{width:18px;height:18px}
.burger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);place-items:center}
.burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* 搜索浮层 */
.search-layer{position:fixed;inset:0;background:rgba(15,35,64,.45);z-index:200;display:none;align-items:flex-start;justify-content:center;padding-top:120px}
.search-layer.on{display:flex}
.search-box{background:#fff;border-radius:16px;width:min(92vw,620px);padding:22px;box-shadow:var(--shadow-h)}
.search-box form{display:flex;gap:10px}
.search-box input{flex:1;border:1px solid var(--line);border-radius:10px;padding:13px 16px;outline:none}
.search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.hot-words{margin-top:14px;font-size:13px;color:var(--sub);display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.hot-words a{background:var(--soft);padding:5px 12px;border-radius:999px;color:var(--ink-2)}
.hot-words a:hover{background:var(--primary-l);color:var(--primary)}

/* ---------- 内页 Banner ---------- */
.page-banner{position:relative;padding:64px 0;color:#fff;overflow:hidden;
  background:linear-gradient(120deg,#123b7a 0%,#2c56b8 45%,#4f46e5 100%)}
.page-banner::after{content:"";position:absolute;right:-80px;top:-80px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.28),transparent 62%)}
.page-banner::before{content:"";position:absolute;left:-60px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(199,154,46,.35),transparent 65%)}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{font-size:34px;font-weight:800;letter-spacing:1px;margin-bottom:10px}
.page-banner p{color:#d6e2fb;max-width:760px;font-size:15.5px}
.crumb{margin-top:16px;font-size:13.5px;color:#c3d3f2;display:flex;gap:8px;align-items:center}
.crumb a:hover{color:#fff}
.crumb span{opacity:.6}

/* ---------- 区块 & 标题 ---------- */
.section{padding:76px 0}
.section.tight{padding:56px 0}
.section.soft{background:linear-gradient(180deg,#f7faff,#eef4ff)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 46px}
.sec-head .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--primary);
  background:var(--primary-l);padding:5px 16px;border-radius:999px;margin-bottom:14px}
.sec-head h2{font-size:30px;font-weight:800;letter-spacing:.5px}
.sec-head p{color:var(--sub);margin-top:12px;font-size:15.5px}
.sec-head.left{text-align:left;margin-left:0}
.sec-head.left .eyebrow{margin-bottom:12px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(1000px 460px at 12% 18%,#e7f0ff 0%,transparent 60%),
  radial-gradient(900px 520px at 88% 10%,#efeaff 0%,transparent 62%),
  linear-gradient(180deg,#f5f9ff,#eaf2ff);
  padding:72px 0 84px}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;position:relative;z-index:2}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #dbe7ff;color:var(--primary);
  font-weight:700;font-size:13px;padding:7px 16px;border-radius:999px;box-shadow:var(--shadow)}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(14,163,107,.15)}
.hero h1{font-size:46px;line-height:1.24;font-weight:800;margin:20px 0 14px;letter-spacing:1px}
.hero .sub{font-size:19px;color:var(--ink-2);font-weight:600;margin-bottom:14px}
.hero .desc{color:var(--sub);font-size:15.5px;max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap}
.hero-badges .hb{display:flex;align-items:center;gap:8px;color:var(--ink-2);font-size:14px;font-weight:600}
.hero-badges .hb img{width:24px;height:24px;object-fit:contain}
.hero-art{position:relative;display:grid;place-items:center}
.hero-art .halo{position:absolute;width:120%;aspect-ratio:1;border-radius:50%;
  background:conic-gradient(from 210deg,#bfd4ff,#e3ddff,#cfe0ff,#bfd4ff);filter:blur(6px);opacity:.55;animation:spin 26s linear infinite}
.hero-art .ring{position:absolute;width:78%;aspect-ratio:1;border-radius:50%;border:1px dashed rgba(37,99,235,.35)}
.hero-art img{position:relative;z-index:2;max-width:520px;width:100%;filter:drop-shadow(0 24px 46px rgba(35,80,160,.22));border-radius:20px}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-fig{position:absolute;background:#fff;border-radius:14px;box-shadow:var(--shadow-h);padding:12px 16px;display:flex;align-items:center;gap:10px;z-index:3}
.hero-fig b{font-size:20px;color:var(--primary);display:block;line-height:1.1}
.hero-fig small{color:var(--sub);font-size:12px}
.hero-fig img{width:26px;height:26px}
.hero-fig.f1{top:6%;left:-2%;animation:float 5s ease-in-out infinite}
.hero-fig.f2{bottom:8%;right:-2%;animation:float 6s ease-in-out infinite .6s}
@keyframes float{50%{transform:translateY(-12px)}}

/* ---------- 统计条 ---------- */
.stats{background:linear-gradient(120deg,#122a55,#24419e 55%,#4f46e5);color:#fff}
.stats .container{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;padding:42px 0}
.stat{text-align:center}
.stat b{display:block;font-size:38px;font-weight:800;letter-spacing:1px;color:#fff}
.stat b .u{font-size:22px;color:#ffd97a;margin-left:2px}
.stat span{color:#c8d7f5;font-size:14px}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.28s;position:relative}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:#cfe0ff}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:linear-gradient(90deg,var(--primary),var(--violet));transform:scaleX(0);transform-origin:left;transition:.3s;z-index:3}
.card:hover::before{transform:scaleX(1)}
.card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card:hover .thumb img{transform:scale(1.06)}
.card .tag{position:absolute;left:14px;bottom:14px;background:rgba(12,28,52,.72);color:#fff;font-size:13px;font-weight:600;
  padding:5px 14px;border-radius:999px;backdrop-filter:blur(4px)}
.card .body{padding:22px}
.card .body h3{font-size:18px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.card .body p{color:var(--sub);font-size:14.3px}
.card .more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;margin-top:14px}
.card .more svg{width:15px;height:15px;transition:.25s}
.card:hover .more svg{transform:translateX(4px)}

/* 图标卡 */
.icard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.28s;position:relative;overflow:hidden}
.icard:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:#cfe0ff}
.icard .ico{width:60px;height:60px;border-radius:16px;background:var(--soft);display:grid;place-items:center;margin-bottom:16px;transition:.28s}
.icard .ico img{width:34px;height:34px;object-fit:contain}
.icard:hover .ico{background:var(--primary-l);transform:rotate(-4deg) scale(1.05)}
.icard h3{font-size:17px;font-weight:700;margin-bottom:8px}
.icard p{color:var(--sub);font-size:14.2px}
.icard .num{position:absolute;right:18px;top:14px;font-size:14px;font-weight:800;color:#dfe8f8}

/* 纯图标列表行 */
.icon-li{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.icon-li .row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);padding:16px 18px;transition:.25s}
.icon-li .row:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.icon-li .row img{width:34px;height:34px;object-fit:contain;flex:0 0 auto}
.icon-li .row b{font-size:15px;font-weight:600;color:var(--ink)}
.icon-li .row small{display:block;color:var(--sub);font-size:12.5px;font-weight:400}

/* ---------- 特色/价值 横条 ---------- */
.value-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.value-strip .v{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.value-strip .v .vi{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--violet));
  display:grid;place-items:center;color:#fff;flex:0 0 auto}
.value-strip .v .vi svg{width:23px;height:23px}
.value-strip .v h4{font-size:16px;margin-bottom:4px}
.value-strip .v p{color:var(--sub);font-size:13.6px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:10px}
.tl-year{display:flex;align-items:center;gap:16px;margin:34px 0 18px}
.tl-year b{font-size:24px;font-weight:800;color:var(--primary);background:var(--primary-l);padding:4px 18px;border-radius:10px}
.tl-year span{flex:1;height:1px;background:var(--line)}
.tl-list{position:relative;padding-left:26px;border-left:2px solid #dfe8fb}
.tl-item{position:relative;padding:0 0 20px 22px}
.tl-item::before{content:"";position:absolute;left:-34px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--primary)}
.tl-item .d{font-size:13px;color:var(--gold);font-weight:700}
.tl-item .t{font-size:15px;color:var(--ink-2)}
.tl-item:hover::before{background:var(--primary)}

/* ---------- 资质证书墙 ---------- */
.cert-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);padding:20px;text-align:center;transition:.25s}
.cert:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0ff}
.cert .ci{width:52px;height:52px;margin:0 auto 12px;border-radius:14px;background:linear-gradient(135deg,#fff6e0,#f7edd6);display:grid;place-items:center}
.cert .ci svg{width:26px;height:26px;color:var(--gold)}
.cert p{font-size:14px;font-weight:600;color:var(--ink-2)}

/* ---------- 合作伙伴墙 ---------- */
.partners{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.partners .p{background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);height:96px;display:grid;place-items:center;padding:16px;transition:.25s;filter:grayscale(.3);opacity:.85}
.partners .p:hover{filter:none;opacity:1;box-shadow:var(--shadow);border-color:#cfe0ff;transform:translateY(-3px)}
.partners .p img{max-height:56px;width:auto;object-fit:contain}

/* ---------- 新闻 ---------- */
.news-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:26px}
.news-feature{position:relative;border-radius:var(--radius);overflow:hidden;min-height:340px;display:flex;align-items:flex-end;color:#fff}
.news-feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.news-feature .ov{position:relative;z-index:2;padding:26px;background:linear-gradient(180deg,transparent,rgba(10,26,50,.86))}
.news-feature h3{font-size:22px;font-weight:700;margin:8px 0}
.news-feature .meta{font-size:13px;color:#d5e2f7}
.news-side{display:grid;gap:16px}
.news-mini{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);padding:14px;transition:.25s}
.news-mini:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.news-mini img{width:92px;height:70px;border-radius:8px;object-fit:cover;flex:0 0 auto}
.news-mini .nm h4{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini .nm span{font-size:12.5px;color:var(--sub)}
.news-list{display:grid;gap:18px}
.news-row{display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:.25s}
.news-row:hover{border-color:#cfe0ff;box-shadow:var(--shadow-h);transform:translateY(-3px)}
.news-row .date{flex:0 0 92px;text-align:center;border-right:1px solid var(--line)}
.news-row .date b{display:block;font-size:26px;color:var(--primary);font-weight:800;line-height:1.1}
.news-row .date span{font-size:12.5px;color:var(--sub)}
.news-row .ni{flex:1}
.news-row h4{font-size:17px;margin-bottom:6px}
.news-row p{color:var(--sub);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .cat{display:inline-block;font-size:12.5px;color:var(--primary);background:var(--primary-l);padding:3px 12px;border-radius:999px;margin-bottom:8px}

/* 筛选 tabs */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:34px}
.filter-bar button{padding:9px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;font-weight:600;transition:.22s}
.filter-bar button:hover{border-color:var(--primary);color:var(--primary)}
.filter-bar button.on{background:linear-gradient(120deg,var(--primary),var(--violet));color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(37,99,235,.25)}

/* ---------- 解决方案详情 ---------- */
.sol-block{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:56px}
.sol-block.rev .sol-media{order:2}
.sol-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-h);position:relative}
.sol-media img{width:100%;height:100%;object-fit:cover}
.sol-text h3{font-size:24px;font-weight:800;margin-bottom:12px}
.sol-text .st-desc{color:var(--sub);margin-bottom:16px}
.sol-feats{display:grid;gap:10px}
.sol-feats li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.sol-feats li .ck{width:20px;height:20px;border-radius:50%;background:var(--primary-l);color:var(--primary);display:grid;place-items:center;flex:0 0 auto;margin-top:2px}
.sol-feats li .ck svg{width:12px;height:12px}

/* tab 解决方案 */
.tab-nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.tab-nav button{padding:11px 22px;border-radius:10px;background:#fff;border:1px solid var(--line);font-weight:600;color:var(--ink-2);transition:.22s}
.tab-nav button.on{background:var(--primary);color:#fff;border-color:var(--primary)}
.tab-panel{display:none}
.tab-panel.on{display:block;animation:fade .4s}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- 案例 ---------- */
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.28s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-h)}
.case-card .ch{position:relative;aspect-ratio:16/9;overflow:hidden}
.case-card .ch img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card:hover .ch img{transform:scale(1.06)}
.case-card .cb{padding:22px}
.case-card .area{font-size:12.5px;color:var(--gold);font-weight:700;margin-bottom:6px}
.case-card h3{font-size:18px;margin-bottom:8px}
.case-card p{color:var(--sub);font-size:14px}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.about-grid img{border-radius:var(--radius);box-shadow:var(--shadow-h)}
.about-text h2{font-size:28px;font-weight:800;margin-bottom:10px}
.about-text .lead{font-size:16px;color:var(--ink-2);margin-bottom:16px;font-weight:600}
.about-text p{color:var(--sub);margin-bottom:14px}
.mvv{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.mvv .m{background:var(--soft);border-radius:var(--radius-s);padding:18px;text-align:center}
.mvv .m b{display:block;font-size:16px;color:var(--primary);margin-bottom:4px}
.mvv .m span{font-size:13.5px;color:var(--sub)}

/* 联系方式 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.info-list{display:grid;gap:16px}
.info-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.info-item .ii{width:48px;height:48px;border-radius:12px;background:var(--primary-l);display:grid;place-items:center;color:var(--primary);flex:0 0 auto}
.info-item .ii svg{width:22px;height:22px}
.info-item h4{font-size:15px;margin-bottom:3px}
.info-item p{color:var(--sub);font-size:14px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .fc-sub{color:var(--sub);font-size:14px;margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;outline:none;transition:.2s;background:#fbfcfe}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.field textarea{resize:vertical;min-height:110px}
.form-tip{font-size:13px;margin-top:10px;min-height:18px}
.form-tip.ok{color:var(--ok)}
.form-tip.err{color:#e5484d}

/* 地图 */
.map-wrap{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);height:340px;display:grid;place-items:center;
  background:linear-gradient(135deg,#eef4ff,#e6ecfb);position:relative;color:var(--sub)}
.map-wrap .pin{display:grid;place-items:center;gap:10px;text-align:center}
.map-wrap .pin img{width:54px;height:54px}
.map-wrap .pin b{font-size:16px;color:var(--ink)}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(120deg,#123b7a,#2c56b8 50%,#4f46e5);color:#fff;border-radius:20px;padding:44px 46px;
  display:flex;align-items:center;gap:30px;justify-content:space-between;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-60px;top:-80px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 62%)}
.cta .ct{position:relative;z-index:2}
.cta h3{font-size:26px;font-weight:800;margin-bottom:8px}
.cta p{color:#d7e3fb;max-width:560px}
.cta .ca{display:flex;gap:12px;position:relative;z-index:2;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#0c1c33;color:#9db0cc;margin-top:0}
.foot-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.1fr;gap:30px;padding:58px 0 40px}
.foot-brand img{height:44px;margin-bottom:16px;filter:brightness(0) invert(1);opacity:.95}
.foot-brand p{font-size:13.6px;line-height:1.9}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col a{display:block;font-size:13.6px;padding:5px 0;color:#9db0cc;transition:.2s}
.foot-col a:hover{color:#fff;padding-left:5px}
.foot-contact div{display:flex;gap:10px;font-size:13.6px;margin-bottom:10px;align-items:flex-start}
.foot-contact svg{width:16px;height:16px;margin-top:4px;flex:0 0 auto;color:var(--gold)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.8px;color:#7b8dab}
.foot-bottom a:hover{color:#fff}

/* ---------- 浮动客服 ---------- */
.float-bar{position:fixed;right:18px;bottom:88px;z-index:90;display:flex;flex-direction:column;gap:12px}
.float-bar a,.float-bar button{width:50px;height:50px;border-radius:14px;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--primary);box-shadow:var(--shadow);transition:.25s;position:relative}
.float-bar a:hover,.float-bar button:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}
.float-bar img{width:26px;height:26px;object-fit:contain}
.float-bar svg{width:22px;height:22px}
.float-bar .tip{position:absolute;right:60px;top:50%;transform:translateY(-50%);background:#0f2340;color:#fff;font-size:13px;
  padding:6px 12px;border-radius:8px;white-space:nowrap;opacity:0;visibility:hidden;transition:.2s}
.float-bar a:hover .tip,.float-bar button:hover .tip{opacity:1;visibility:visible}
.to-top{opacity:0;visibility:hidden;transition:.3s}
.to-top.on{opacity:1;visibility:visible}

/* ---------- 客服浮窗 ---------- */
.dlg{position:fixed;right:18px;bottom:150px;z-index:95;width:280px;background:#fff;border-radius:16px;box-shadow:var(--shadow-h);padding:20px;display:none}
.dlg.on{display:block;animation:fade .3s}
.dlg h4{font-size:16px;margin-bottom:12px;display:flex;justify-content:space-between}
.dlg h4 button{color:var(--sub)}
.dlg .qr{display:grid;place-items:center;gap:8px;text-align:center}
.dlg .qr img{width:150px;height:150px;object-fit:contain}
.dlg .qr small{color:var(--sub)}

/* ---------- 数据条 / 里程碑数字 ---------- */
.mile{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mile .m{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center}
.mile .m b{font-size:32px;font-weight:800;color:var(--primary)}
.mile .m span{display:block;color:var(--sub);font-size:14px;margin-top:4px}

/* ---------- 副导航（内页侧边） ---------- */
.pager{display:flex;justify-content:space-between;gap:14px;margin-top:40px;border-top:1px solid var(--line);padding-top:24px;flex-wrap:wrap}
.pager a{display:flex;flex-direction:column;gap:4px;padding:14px 20px;border:1px solid var(--line);border-radius:var(--radius-s);min-width:200px;transition:.22s}
.pager a:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.pager a span{font-size:12.5px;color:var(--sub)}
.pager a b{font-size:15px;color:var(--ink)}
.pager .next{text-align:right;margin-left:auto}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-menu{gap:0}
  .nav-menu>li>a{padding:0 11px;font-size:14.5px}
  .hero h1{font-size:38px}
  .partners{grid-template-columns:repeat(4,1fr)}
  .foot-main{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:900px){
  .nav-menu{position:fixed;top:0;right:0;bottom:0;width:280px;background:#fff;flex-direction:column;align-items:stretch;
    padding:80px 16px 24px;gap:2px;transform:translateX(100%);transition:.3s;box-shadow:-10px 0 40px rgba(0,0,0,.12);overflow-y:auto;z-index:110}
  .nav-menu.open{transform:none}
  .nav-menu>li>a{height:auto;line-height:1.4;padding:14px 12px;border-radius:10px}
  .nav-menu>li>a::after{display:none}
  .nav-menu>li.active>a{background:var(--primary-l)}
  .drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;
    padding:0 0 0 10px;margin-left:10px;border-left:2px solid var(--primary-l);display:none}
  .has-drop.open .drop{display:block}
  .burger{display:grid}
  .search-btn{display:none}
  .hero .container{grid-template-columns:1fr;text-align:center}
  .hero .desc{margin-inline:auto}
  .hero-actions,.hero-badges{justify-content:center}
  .hero-art{order:-1;margin-top:6px}
  .hero-art img{max-width:360px}
  .stats .container{grid-template-columns:repeat(2,1fr);gap:26px}
  .g4,.g3{grid-template-columns:repeat(2,1fr)}
  .icon-li{grid-template-columns:repeat(2,1fr)}
  .value-strip{grid-template-columns:repeat(2,1fr)}
  .cert-wall{grid-template-columns:repeat(3,1fr)}
  .about-grid,.contact-grid,.sol-block,.news-hero{grid-template-columns:1fr}
  .sol-block.rev .sol-media{order:0}
  .mile{grid-template-columns:repeat(2,1fr)}
  .cta{flex-direction:column;text-align:center}
  .sec-head h2{font-size:25px}
  .page-banner h1{font-size:27px}
}
@media (max-width:560px){
  .container{width:min(100% - 28px,var(--maxw))}
  .section{padding:52px 0}
  .hero{padding:44px 0 60px}
  .hero h1{font-size:30px}
  .hero .sub{font-size:16px}
  .stats .container{grid-template-columns:1fr 1fr}
  .stat b{font-size:30px}
  .g2,.g3,.g4,.icon-li,.value-strip,.cert-wall,.partners,.mile{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .news-row{flex-direction:column}
  .news-row .date{flex:none;text-align:left;border-right:0;border-bottom:1px solid var(--line);padding-bottom:8px}
  .foot-main{grid-template-columns:1fr 1fr;gap:22px}
  .float-bar{right:10px;bottom:70px}
  .topbar{font-size:12px}
  .topbar .container{height:34px}
  .topbar .tb-l span:nth-child(2){display:none}
  .topbar .tb-l span{white-space:nowrap}
  .topbar .tb-r a{display:none}
  .topbar .tb-r{gap:8px}
  .cta{padding:30px 22px}
  .cta h3{font-size:21px}
}