:root{
  --blue:#5865f2;
  --blue-dark:#4338ca;
  --line:#e5edf5;
}
*{box-sizing:border-box}
body{margin:0;background:#fff;color:#17324d;font-family:"Microsoft YaHei",Arial,sans-serif}
a{text-decoration:none;color:inherit}
.top{height:170px;display:flex;align-items:center;justify-content:center;position:relative;background:#fff}
.brand{position:absolute;left:6%;top:28px;font-size:22px;font-weight:700;color:#635bdb}
.search{display:flex;width:460px;height:46px}
.search input{flex:1;border:1px solid #cbd9e8;border-right:0;border-radius:6px 0 0 6px;padding:0 16px;font-size:15px;background:#fff}
.search button{width:74px;border:0;background:linear-gradient(135deg,#4f7cff,#8a57ed);color:#fff;font-size:0;border-radius:0 6px 6px 0;display:flex;align-items:center;justify-content:center;cursor:pointer}
.search button img{width:30px;height:30px;object-fit:contain;display:block}
.nav,.container{max-width:1120px;margin:auto}
.nav{height:62px;border-bottom:1px solid var(--line);display:flex;gap:44px;align-items:stretch;position:relative;z-index:5}
.nav a{display:flex;align-items:center;height:62px;padding:0 4px;color:#17324d;font-size:19px;border-bottom:2px solid transparent}
.nav>a.active,.nav-item>a.active{border-bottom-color:var(--blue);color:var(--blue)}
.nav-item{position:relative;display:flex;align-items:stretch}
.nav-item>a{display:flex;align-items:center;height:62px}
.nav-dropdown{position:absolute;left:0;top:calc(100% + 1px);width:190px;background:#fff;border:1px solid #e5edf5;border-left:5px solid var(--blue);box-shadow:0 4px 14px #5865f233;padding:10px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s;z-index:20}
.nav-item:hover .nav-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dropdown a{display:block;padding:8px 18px;color:#4a4a4a;font-size:16px;white-space:nowrap;border:0;height:auto}
.nav-dropdown a:hover,.nav-dropdown a.active{color:var(--blue);background:#f1f3ff}
.nav-dropdown em{font-style:normal;color:#8a8a8a;margin-left:4px}
.mobile-pagebar{display:none}
.product-list{display:grid;grid-template-columns:1fr;gap:12px;padding-top:20px;max-width:860px;margin-left:auto;margin-right:auto}
.card{border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;padding:12px 16px;transition:.22s;background:#fff;min-height:84px;cursor:pointer}
.card:hover{border-color:#c3cdf5;box-shadow:0 6px 18px #5865f21f;transform:translateY(-1px)}
.thumb{width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:#f5f8fb;border-radius:8px;margin-right:14px;flex:none;overflow:hidden}
.thumb img{max-width:100%;max-height:100%;object-fit:contain}
.thumb span{font-size:10px;color:#a8b8c8}
.info{flex:1;min-width:0}
.info h3{margin:0 0 5px;font-size:15px;font-weight:600;color:#17324d;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.info small{color:#7b8da0;font-size:12.5px}
.download-btn,.file-download{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;flex:none;margin-left:10px;
  background:#f1f3ff;border-radius:50%;
}
.detail-page{display:grid;grid-template-columns:1fr 360px;gap:48px;padding-top:30px}
.detail-title{color:#17324d;font-size:28px;font-weight:500;border-bottom:1px solid var(--line);padding-bottom:18px}
.file-list{margin-top:6px}
.file-row{display:grid;grid-template-columns:28px 1fr 160px 90px 56px;align-items:center;min-height:72px;border-bottom:1px solid var(--line);gap:10px}
.file-row input[type=checkbox]{width:22px;height:22px;accent-color:var(--blue)}
.file-name{font-size:18px}
.file-date,.file-size{color:#6c6c6c;font-size:15px}
.file-download{position:relative}
.select-all{padding:20px 0;display:flex;align-items:center;gap:18px;color:var(--blue-dark)}
.select-all input{width:22px;height:22px;accent-color:var(--blue)}
.select-all button{background:linear-gradient(135deg,#4f7cff,#7657e8);color:#fff;border:0;border-radius:6px;padding:8px 22px;font-size:15px;cursor:pointer}
.product-box{background:#fff;border-radius:16px;padding:30px;text-align:center;align-self:start}
.big-cover{height:280px;background:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:20px;border-radius:6px;overflow:hidden}
.big-cover img{max-width:100%;max-height:100%;object-fit:contain}
.product-box strong{font-size:18px}
.empty{padding:60px;text-align:center;color:#8aa0b5;grid-column:1/-1}
.pagination-bar{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin:24px auto;padding:12px 0;color:#7b8da0;font-size:13px}
.pagination-bar label{display:inline-flex;align-items:center;gap:6px}
.pagination-bar select{height:32px;padding:0 8px;border:1px solid var(--line);border-radius:5px;background:#fff;color:#17324d}
.pagination{display:flex;align-items:center;gap:6px}
.pagination a{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding:0 8px;border:1px solid #cbd9e8;border-radius:5px;background:#fff;color:var(--blue-dark)}
.pagination a:hover,.pagination a.current{background:var(--blue);color:#fff;border-color:var(--blue)}
[hidden]{display:none!important}
.download-btn img,.file-download img{width:22px;height:22px;object-fit:contain;display:block}
.file-download img{width:32px;height:32px}
@media(max-width:800px){
  .top{height:152px;justify-content:center}
  .brand{left:16px;top:18px;font-size:18px}
  .search{position:absolute;top:72px;width:92%;height:52px}
  .search button{width:86px}
  .nav{display:none}
  .mobile-pagebar{display:flex;align-items:center;gap:12px;height:56px;background:linear-gradient(135deg,#4f7cff,#7657e8);color:#fff;padding:0 14px}
  .mobile-links{flex:1;display:flex;align-items:center;justify-content:flex-start;gap:22px;padding-left:6px}
  .mobile-links a{font-size:17px;color:#fff;opacity:.85}
  .mobile-links a.active{opacity:1;font-weight:600}
  .mobile-back{width:34px;height:34px;display:flex;align-items:center;justify-content:center;color:#fff;position:relative;flex:none}
  .mobile-back:before{content:"";width:14px;height:14px;border-left:3px solid #fff;border-bottom:3px solid #fff;transform:rotate(45deg);display:block}
  .product-list{gap:10px;padding-top:12px}
  .card{min-height:72px;padding:10px 13px}
  .thumb{width:52px;height:52px;margin-right:12px}
  .download-btn,.file-download{width:42px;height:42px}
  .download-btn img,.file-download img{width:20px;height:20px}
  .detail-page{grid-template-columns:1fr;gap:24px;padding:0 16px 0}
  .detail-title{display:none}
  .file-row{grid-template-columns:24px 1fr auto 48px;gap:8px;min-height:64px}
  .file-row .file-size{display:none}
  .file-row .file-date{font-size:13px}
  .file-row input[type=checkbox]{width:20px;height:20px}
  .file-name{font-size:16px}
  .product-box{order:-1;padding:18px}
  .big-cover{height:240px}
  .select-all{gap:12px}
  .select-all button{padding:8px 18px}
}

/* 商品列表：箱规与资质展示 */
.info .spec-line{display:block;margin-top:2px;color:#5a6d80;font-size:12.5px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.info .qual-link{color:#635bdb;font-weight:500;text-decoration:underline;text-underline-offset:2px}
.info .meta-date{display:block;margin-top:6px;padding-top:6px;border-top:1px dashed #eef2f7;color:#9aaabd;font-size:12px}

/* 商标查询页 */
.tm-search{padding-top:26px;text-align:center}
.tm-list{display:grid;grid-template-columns:1fr;gap:12px;padding-top:20px;max-width:860px;margin:0 auto}
.tm-card{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;background:#fff;padding:14px 16px;gap:16px;transition:.22s}
.tm-card:hover{border-color:#c3cdf5;box-shadow:0 6px 18px #5865f21f}
.tm-certs{display:flex;gap:8px;flex-wrap:wrap;flex:none}
.tm-certs img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid #e3eaf1;display:block}
.tm-certs a{display:block;line-height:0}
.tm-certs .tm-pdf{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:8px;border:1px solid #e3eaf1;font-size:13px;color:#b42318;background:#fff5f5}
.tm-info{flex:1;min-width:0}
.tm-info h3{margin:0 0 6px;font-size:16px;font-weight:600;color:#17324d;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tm-line{display:block;margin-top:2px;color:#5a6d80;font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tm-line strong{color:#17324d;font-weight:600}
.tm-date{color:#9aaabd;margin-top:6px}
@media(max-width:800px){
  .tm-search{padding-top:14px}
  .tm-card{padding:12px 13px;gap:12px}
  .tm-certs img,.tm-certs .tm-pdf{width:52px;height:52px}
}