/* ============================================================
   溯源授权 · 前台样式
   ============================================================ */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#1e3c72;--primary2:#2a5298;--accent:#e67e22;
  --bg:#f4f6fa;--card:#fff;--border:#e3e7ef;--text:#2c3e50;--muted:#7f8c8d;
  --ok:#27ae60;--warn:#e67e22;--info:#2980b9;--done:#7f8c8d;
}
html{-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--primary2);text-decoration:none}
img{max-width:100%}
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 16px}

/* 头部 */
.site-header{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 10px rgba(0,0,0,.12)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;color:#fff;gap:10px}
.brand-badge{width:34px;height:34px;background:#fff;color:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.5px}
.site-nav{display:flex;gap:6px;align-items:center}
.site-nav a{color:#eaf0ff;padding:8px 14px;border-radius:8px;font-size:14px;transition:.2s}
.site-nav a:hover{background:rgba(255,255,255,.12)}
.site-nav a.active{background:#fff;color:var(--primary);font-weight:600}
.site-nav a.nav-admin{border:1px solid rgba(255,255,255,.4);padding:6px 12px}
.site-nav a{position:relative}
.site-nav .nav-badge{position:absolute;top:2px;right:-2px;min-width:18px;height:18px;line-height:18px;padding:0 4px;background:#e74c3c;color:#fff;font-size:11px;border-radius:9px;text-align:center}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px}

/* 主体 */
.main{min-height:62vh;padding:26px 16px 50px}
.page-title{margin-bottom:20px}
.page-title h1{font-size:24px;color:var(--primary)}
.page-title p{color:var(--muted);font-size:14px;margin-top:4px}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;box-shadow:0 2px 12px rgba(30,60,114,.06)}
.card + .card{margin-top:20px}
.card h2{font-size:18px;color:var(--primary);margin-bottom:14px;display:flex;align-items:center;gap:8px}

/* 英雄区 */
.hero{background:linear-gradient(135deg,var(--primary),var(--primary2));border-radius:18px;color:#fff;padding:36px 30px;text-align:center;margin-bottom:26px}
.hero h1{font-size:28px;margin-bottom:12px}
.hero p{opacity:.9;font-size:15px;max-width:640px;margin:0 auto}
.hero-points{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px;max-width:680px;margin:0 auto}
.hero-point{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 16px;font-size:14px;white-space:nowrap;opacity:.95}
.hero-sub{font-size:14px;opacity:.85;margin-top:12px;letter-spacing:1px}
.hero-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:18px;text-align:left}
.hero-card h3{font-size:15px;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.hero-card p{font-size:13px;opacity:.85}
.hero-card .ic{font-size:22px}

/* 功能入口（首页） */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.entry{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px;box-shadow:0 2px 10px rgba(30,60,114,.05);transition:transform .2s,box-shadow .2s}
.entry:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(30,60,114,.12)}
.entry .ic{font-size:30px;margin-bottom:10px}
.entry h3{font-size:17px;color:var(--primary);margin-bottom:6px}
.entry p{font-size:13px;color:var(--muted)}
.entry .go{margin-top:14px;display:inline-block;color:var(--accent);font-weight:600;font-size:14px}

/* 表单 */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:14px;font-weight:600;color:#444;margin-bottom:6px}
.form-group label .req{color:#e74c3c}
.form-control{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:9px;font-size:15px;outline:none;background:#fff;transition:border .2s;font-family:inherit}
.form-control:focus{border-color:var(--primary2);box-shadow:0 0 0 3px rgba(42,82,152,.1)}
textarea.form-control{min-height:110px;resize:vertical}
select.form-control{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%237f8c8d' d='M6 8L1 3h10z'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.form-hint{font-size:12px;color:var(--muted);margin-top:4px}

.btn{display:inline-block;padding:12px 26px;border:0;border-radius:9px;font-size:15px;font-weight:600;cursor:pointer;text-align:center;transition:.2s;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--primary2),var(--primary));color:#fff;width:100%}
.btn-primary:hover{opacity:.92}
.btn-block{width:100%}
.btn-ghost{background:#f0f3fa;color:var(--primary2);width:100%}
.btn-ghost:hover{background:#e6ecf7}

/* 提示条 */
.alert{padding:12px 16px;border-radius:9px;font-size:14px;margin-bottom:18px}
.alert-error{background:#fdecea;color:#c0392b;border:1px solid #f5c6cb}
.alert-ok{background:#eafaf1;color:#1e8449;border:1px solid #abebc6}
.alert-info{background:#eaf4fd;color:#21618c;border:1px solid #aed6f1}
.alert-warn{background:#fef9e7;color:#9a7d0a;border:1px solid #f7dc6f}

/* 结果区 */
.result-center{text-align:center}
.result-icon{width:70px;height:70px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:34px;color:#fff}
.result-icon.ok{background:var(--ok)}
.result-icon.info{background:var(--info)}
.code-box{display:inline-block;background:#f0f3fa;border:2px dashed var(--primary2);color:var(--primary);font-size:28px;font-weight:800;letter-spacing:3px;padding:12px 26px;border-radius:10px;margin:12px 0}
.qr-box{margin:18px auto;padding:16px;background:#fff;border:1px solid var(--border);border-radius:12px;display:inline-block}
.qr-box canvas,#qrcode canvas{display:block;margin:0 auto}
.qr-box .qr-tip{font-size:12px;color:var(--muted);margin-top:8px;text-align:center}
.copy-btn{margin-top:10px}

/* 查询表单 */
.search-bar{display:flex;gap:10px}
.search-bar .form-control{flex:1}
.search-bar .btn{width:auto;padding:12px 22px;flex-shrink:0}

/* 时间线 */
.timeline{position:relative;padding-left:26px}
.timeline:before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--border)}
.tl-item{position:relative;padding:0 0 20px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-26px;top:4px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--info)}
.tl-item.meta .tl-dot{border-color:var(--warn)}
.tl-item.done .tl-dot{border-color:var(--ok)}
.tl-time{font-size:12px;color:var(--muted)}
.tl-body{background:#f7f9fc;border:1px solid var(--border);border-radius:9px;padding:12px 14px;margin-top:6px;font-size:14px;white-space:pre-wrap;word-break:break-word}

/* 状态徽章 */
.badge{display:inline-block;padding:3px 12px;border-radius:20px;font-size:13px;font-weight:600;color:#fff}
.badge-0{background:var(--warn)}.badge-1{background:var(--info)}.badge-2{background:var(--ok)}.badge-3{background:var(--done)}

/* 详情列表 */
.detail-list{list-style:none}
.detail-list li{display:flex;padding:10px 0;border-bottom:1px dashed var(--border);font-size:14px}
.detail-list li:last-child{border-bottom:0}
.detail-list .k{width:90px;flex-shrink:0;color:var(--muted)}
.detail-list .v{flex:1;word-break:break-word}

/* 证书 */
.cert-info{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}
.cert-flag{flex:0 0 auto}
.flag-ok{color:var(--ok);font-weight:800}
.flag-expired,.flag-stop{color:#c0392b;font-weight:800}
.flag-limit{color:var(--accent);font-weight:600}
.flag-free{color:var(--info)}

/* 脚注 */
.site-footer{background:#1f2d45;color:#aab6cc;padding:26px 0;text-align:center;font-size:13px}
.site-footer .foot-mini{margin-top:6px;color:#7f8da8}
.site-footer .foot-beian{margin-top:8px;color:#7f8da8}
.site-footer .foot-beian a{color:#9fb3d5;text-decoration:none;border-bottom:1px dotted #6d7f9f;padding-bottom:1px}
.site-footer .foot-beian a:hover{color:#fff;border-bottom-color:#fff}

/* 打印 */
@media print{
  .site-header,.site-footer,.no-print,.btn,.search-bar{display:none!important}
  body{background:#fff}
  .main{padding:0;min-height:auto}
}

/* 响应式 */
@media (max-width:860px){
  .hero-cards{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .nav-toggle{display:flex}
  .site-nav{position:absolute;top:62px;left:0;right:0;background:var(--primary2);flex-direction:column;align-items:stretch;padding:10px 16px 16px;display:none;box-shadow:0 10px 20px rgba(0,0,0,.2)}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 14px;font-size:15px}
  .site-nav a.active{background:rgba(255,255,255,.14);color:#fff}
  .hero{padding:26px 20px}
  .hero h1{font-size:22px}
  .entry-grid{grid-template-columns:1fr}
  .card{padding:18px}
  .search-bar{flex-direction:column}
  .search-bar .btn{width:100%}
  .detail-list .k{width:78px}
}