/* ===== 寰宇联智生态科技 · 全球样式系统 ===== */
:root{
  --primary:#0b4ea2;
  --primary-dark:#082f63;
  --primary-deep:#061f46;
  --accent:#f59e0b;
  --accent-hover:#d97706;
  --info:#0ea5e9;
  --bg:#f5f7fb;
  --line:#e6eaf2;
  --text:#1f2a3d;
  --text-2:#5b6b85;
  --white:#fff;
  --shadow:0 4px 22px rgba(11,78,162,.08);
  --shadow-lg:0 10px 38px rgba(6,31,70,.14);
  --rad:14px;
  --safe:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

.container{width:100%;max-width:var(--safe);margin:0 auto;padding:0 20px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 24px;border-radius:8px;font-size:15px;font-weight:600;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover)}
.btn-line{border:1px solid var(--primary);color:var(--primary);background:#fff}
.btn-line:hover{background:#eef4ff}
.btn-ghost{border:1px solid var(--line);color:var(--text-2);background:#fff}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-lg{padding:14px 34px;font-size:16px}
.btn-sm{padding:7px 15px;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* 顶部信息条 */
.topbar{background:var(--primary-deep);color:#cfe0ff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar a:hover{color:#fff}
.topbar .tp-l, .topbar .tp-r{display:flex;align-items:center;gap:18px}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(6,31,70,.05)}
.sheader .container{display:flex;align-items:center;gap:34px;height:74px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--info));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:22px;flex:none}
.logo-name{font-size:19px;font-weight:700;color:var(--primary-deep);line-height:1.2}
.logo-name small{display:block;font-size:11px;font-weight:500;color:var(--text-2);letter-spacing:2px;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;flex:1}
.main-nav a{padding:9px 15px;border-radius:8px;font-size:15px;color:var(--text-2);font-weight:500;transition:.2s}
.main-nav a:hover{color:var(--primary);background:#eef4ff}
.main-nav a.active{color:#fff;background:var(--primary)}
.header-tools{display:flex;align-items:center;gap:14px}
.cart-link{position:relative;display:flex;align-items:center;gap:6px;padding:9px 14px;border-radius:8px;border:1px solid var(--line);color:var(--text);font-size:14px;transition:.2s}
.cart-link:hover{border-color:var(--primary);color:var(--primary)}
.cart-badge{position:absolute;top:-7px;right:-8px;background:#e8423c;color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:none;align-items:center;justify-content:center;padding:0 5px;font-weight:600}
.cart-badge.show{display:flex}
.user-box{display:flex;align-items:center;gap:10px}
.user-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--info));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.user-menu{position:relative}
.user-menu .drop{position:absolute;right:0;top:46px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-lg);min-width:160px;padding:6px;display:none;z-index:200}
.user-menu.open .drop{display:block}
.user-menu .drop a{display:block;padding:9px 13px;border-radius:7px;font-size:14px;color:var(--text)}
.user-menu .drop a:hover{background:#eef4ff;color:var(--primary)}

/* 移动端菜单 */
.nav-toggle{display:none;width:42px;height:42px;border-radius:8px;border:1px solid var(--line);align-items:center;justify-content:center;font-size:20px;color:var(--primary)}
@media(max-width:920px){
  .sheader .container{flex-wrap:wrap;height:auto;padding:14px 16px;gap:12px}
  .logo-name{font-size:16px}
  .main-nav{order:3;width:100%;flex-wrap:wrap;gap:4px;display:none;padding-top:6px;border-top:1px solid var(--line)}
  .main-nav.open{display:flex}
  .main-nav a{flex:1;min-width:100px;text-align:center}
  .nav-toggle{display:flex}
  .topbar .tp-l span{display:none}
}
@media(max-width:560px){
  .header-tools{gap:8px}
  .cart-link span.txt{display:none}
}

/* 页脚 */
#site-footer,.site-footer{background:linear-gradient(160deg,#08103a,#02040c);color:#ffffff;margin-top:60px}
.footer-main .container{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding:52px 20px}
.f-about .flogo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.f-about p{font-size:15px;line-height:1.9;color:#eef3ff;font-weight:500}
.f-title{font-size:17px;color:#ffffff;margin-bottom:18px;font-weight:700}
.f-links li{margin-bottom:12px}
.f-links a{font-size:15px;color:#e8eefa;font-weight:500}
.f-links a:hover{color:#ffffff;font-weight:600}
.f-contact li{font-size:15px;margin-bottom:12px;color:#f2f6ff;display:flex;gap:8px;font-weight:500}
.f-contact b{color:#ffffff;font-weight:700}
.footer-bottom{border-top:1px solid rgba(255,255,255,.22);padding:20px 0;text-align:center;font-size:14px;color:#d5def0;font-weight:500}
.footer-bottom a{color:#eef3ff;font-weight:600}
.footer-bottom a:hover{color:#ffffff}
@media(max-width:820px){.footer-main .container{grid-template-columns:1fr 1fr}}

/* ===== 通用区块 ===== */
.section{padding:58px 0}
.sec-head{text-align:center;margin-bottom:36px}
.sec-eyebrow{display:inline-block;font-size:13px;color:var(--primary);background:#e9f1ff;padding:4px 14px;border-radius:20px;font-weight:600;margin-bottom:12px}
.sec-title{font-size:30px;font-weight:800;color:var(--primary-deep)}
.sec-sub{color:var(--text-2);margin-top:10px;font-size:15px}
@media(max-width:560px){.sec-title{font-size:24px}}

/* 面包屑 */
.breadcrumb{background:#eef2f9;border-bottom:1px solid var(--line);font-size:13px;color:var(--text-2)}
.breadcrumb .container{padding:12px 20px}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb span{padding:0 6px}

/* 商品网格 */
.grid{display:grid;gap:22px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

/* 商品卡片 */
.card-product{background:#fff;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;transition:.25s;position:relative}
.card-product:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.card-product .thumb{height:230px;overflow:hidden;position:relative}
.card-product .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card-product:hover .thumb img{transform:scale(1.06)}
.card-product .tag{position:absolute;top:12px;left:12px;background:var(--accent);color:#fff;font-size:12px;padding:3px 10px;border-radius:6px}
.card-product .pbody{padding:16px;display:flex;flex-direction:column;gap:9px}
.card-product .pname{font-size:15px;font-weight:600;color:var(--text);min-height:44px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-product .pname:hover{color:var(--primary)}
.card-product .shop{font-size:12px;color:var(--text-2);display:flex;align-items:center;gap:5px}
.card-product .price-row{display:flex;align-items:flex-end;justify-content:space-between;margin-top:2px}
.price{color:#e8423c;font-weight:800}
.price em{font-style:normal;font-size:12px}
.price b{font-size:21px}
.price small{font-size:12px;color:var(--text-2);font-weight:400;margin-left:2px}
.score{color:var(--accent);font-size:13px}

/* 信息卡片 */
.card-info{background:#fff;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;transition:.25s;display:block}
.card-info:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-info .thumb{height:190px;overflow:hidden}
.card-info .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card-info:hover .thumb img{transform:scale(1.05)}
.card-info .ibody{padding:15px;display:flex;flex-direction:column;gap:8px}
.card-info .ititle{font-size:15px;font-weight:700;color:var(--text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-info .ititle:hover{color:var(--primary)}
.card-info .cate{font-size:12px;color:var(--info);background:#e7f6ff;padding:2px 9px;border-radius:4px;align-self:flex-start}
.card-info .ibrief{font-size:13px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-info .imeta{font-size:12px;color:var(--text-2);display:flex;justify-content:space-between;align-items:center;border-top:1px dashed var(--line);padding-top:9px}
.provider .shade{display:inline-block;margin-left:4px;font-weight:600;color:var(--primary)}

/* 空状态 / 提示 */
.empty{text-align:center;padding:70px 20px;color:var(--text-2)}
.empty .ico{font-size:52px;margin-bottom:14px}
.empty h3{color:var(--text);margin-bottom:8px;font-size:18px}
.empty p{font-size:14px;margin-bottom:20px}

/* 分页 / 筛选条 */
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filter-bar .fb-label{font-size:14px;color:var(--text-2);margin-right:4px}
.chip{padding:7px 16px;border-radius:20px;border:1px solid var(--line);font-size:14px;color:var(--text-2);transition:.2s}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.chip.shop-chip.active{background:var(--info);border-color:var(--info)}
.sort-line{margin-top:12px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* 表单 */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--rad);box-shadow:var(--shadow);padding:34px;max-width:460px;margin:0 auto}
.form-card h2{font-size:22px;color:var(--primary-deep);margin-bottom:6px}
.form-card .sub{color:var(--text-2);font-size:14px;margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--text);margin-bottom:7px;font-weight:600}
.field .req{color:#e8423c}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:14px;color:var(--text);transition:.2s;background:#fff;font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,78,162,.12)}
.field textarea{resize:vertical;min-height:110px}
.field-hint{font-size:12px;color:var(--text-2);margin-top:5px}
.agree-row{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-2);margin:6px 0 18px}
.agree-row input{margin-top:3px;width:16px;height:16px;flex:none}
.agree-row a{color:var(--primary);text-decoration:underline}
.form-foot{text-align:center;font-size:14px;color:var(--text-2)}
.form-foot a{color:var(--primary);font-weight:600}
.msg{font-size:13px;margin-top:8px}
.msg.err{color:#e8423c}.msg.ok{color:#16a34a}

/* 报价 / 步骤 */
.steps{display:flex;gap:0;margin:30px 0}
.step{flex:1;text-align:center;position:relative}
.step .num{width:36px;height:36px;border-radius:50%;background:#e6eaf2;color:var(--text-2);display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 8px}
.step.active .num{background:var(--primary);color:#fff}
.step span{font-size:13px;color:var(--text-2)}
.step.active span{color:var(--primary);font-weight:600}
.step:not(:last-child):after{content:"";position:absolute;top:18px;left:50%;width:100%;height:2px;background:var(--line)}

/* 模态框 */
.modal-mask{position:fixed;inset:0;background:rgba(6,31,70,.55);display:none;align-items:center;justify-content:center;z-index:1000;padding:20px}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:16px;max-width:420px;width:100%;padding:28px;position:relative;box-shadow:var(--shadow-lg);animation:pop .25s ease}
@keyframes pop{from{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}
.modal h3{font-size:19px;color:var(--primary-deep);margin-bottom:10px}
.modal .m-sub{font-size:14px;color:var(--text-2);margin-bottom:20px}
.modal .m-actions{display:flex;gap:12px;justify-content:flex-end}

/* toast */
.toast-wrap{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:2000;display:flex;flex-direction:column;gap:10px;width:min(360px,90vw)}
.toast{background:#fff;border-radius:10px;box-shadow:var(--shadow-lg);padding:14px 18px;font-size:14px;display:flex;align-items:center;gap:10px;border-left:4px solid var(--primary);animation:slide .3s ease}
.toast.ok{border-left-color:#16a34a}
.toast.err{border-left-color:#e8423c}
@keyframes slide{from{transform:translateY(-20px);opacity:0}to{transform:translateY(0);opacity:1}}

/* 页头横幅 */
.page-hero{background:linear-gradient(135deg,var(--primary-deep),var(--primary));color:#fff;padding:58px 0}
.page-hero h1{font-size:32px;font-weight:800;margin-bottom:10px}
.page-hero p{color:#cfe0ff;font-size:15px;max-width:720px}
@media(max-width:560px){.page-hero h1{font-size:25px}}

/* 支付成功 / 结果 */
.result-box{max-width:520px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--rad);box-shadow:var(--shadow);text-align:center;padding:44px 30px}
.result-box .ok-ico{width:74px;height:74px;border-radius:50%;background:#ecfdf3;color:#16a34a;display:flex;align-items:center;justify-content:center;font-size:38px;margin:0 auto 18px}
.result-box h2{color:var(--primary-deep);margin-bottom:8px}
.result-box p{color:var(--text-2);margin-bottom:24px}