/* ===== 便民查询网 - 全局样式 ===== */
:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --primary-light:#eff6ff;
  --accent:#0ea5e9;
  --bg:#f6f8fc;
  --card:#ffffff;
  --text:#1f2937;
  --muted:#64748b;
  --border:#e5e9f2;
  --success:#16a34a;
  --warn:#d97706;
  --danger:#dc2626;
  --radius:14px;
  --shadow:0 1px 3px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.05);
  --maxw:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;font-size:15px;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 18px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:18px;height:62px}
.logo{flex:0 0 auto}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text);white-space:nowrap}
.logo .mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.logo:hover{text-decoration:none}
.main-nav{display:flex;gap:4px;flex-wrap:nowrap;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{padding:7px 12px;border-radius:8px;color:var(--muted);font-weight:600;font-size:14px;white-space:nowrap;flex:0 0 auto}
.main-nav a:hover{background:var(--primary-light);color:var(--primary);text-decoration:none}
.header-search{margin-left:auto;flex:0 0 auto;display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:6px 10px;min-width:200px}
.header-search input{border:0;outline:0;flex:1;font-size:14px;background:transparent}
.header-search button{border:0;background:var(--primary);color:#fff;border-radius:7px;padding:5px 10px;cursor:pointer;font-size:13px}
.menu-toggle{display:none}

/* Hero */
.hero{background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#fff;padding:46px 0 40px}
.hero h1{font-size:30px;margin:0 0 10px;font-weight:800}
.hero p{margin:0 0 22px;opacity:.95;font-size:16px;max-width:680px}
.hero-search{display:flex;gap:10px;max-width:640px}
.hero-search input{flex:1;border:0;border-radius:12px;padding:14px 16px;font-size:16px;outline:0}
.hero-search button{background:#fff;color:var(--primary);border:0;border-radius:12px;padding:0 22px;font-weight:800;font-size:15px;cursor:pointer}
.hero-tags{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}
.hero-tags a{background:rgba(255,255,255,.16);color:#fff;padding:5px 12px;border-radius:20px;font-size:13px}
.hero-tags a:hover{background:rgba(255,255,255,.28);text-decoration:none}

/* Section */
.section{padding:34px 0}
.section h2{font-size:22px;margin:0 0 4px;font-weight:800}
.section .sub{color:var(--muted);margin:0 0 20px;font-size:14px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}

/* Category grid */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:.18s}
.cat-card:hover{transform:translateY(-3px);border-color:#c7d6f5}
.cat-card h3{margin:0 0 4px;font-size:17px;display:flex;align-items:center;gap:9px}
.cat-card .ico{width:36px;height:36px;border-radius:9px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:18px}
.cat-card p{margin:6px 0 12px;color:var(--muted);font-size:13px}
.cat-card .links{display:flex;flex-wrap:wrap;gap:6px}
.cat-card .links a{background:#f1f5fb;border:1px solid var(--border);padding:4px 10px;border-radius:7px;font-size:13px;color:var(--text)}
.cat-card .links a:hover{background:var(--primary-light);color:var(--primary);text-decoration:none}
.cat-card .links a.more{background:transparent;border-color:transparent;color:var(--primary);font-weight:600;padding-left:2px}
.cat-card .links a.more:hover{background:var(--primary-light)}

/* Tool grid (homepage all tools) */
.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow);transition:.18s}
.tool-card:hover{transform:translateY(-3px);border-color:#c7d6f5;text-decoration:none}
.tool-card .t-ico{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary-light),#e0f2fe);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px}
.tool-card .t-name{font-weight:700;color:var(--text)}
.tool-card .t-desc{font-size:12.5px;color:var(--muted);line-height:1.5}

/* Breadcrumb */
.breadcrumb{font-size:13px;color:var(--muted);padding:14px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb span{margin:0 7px;color:#cbd5e1}

/* Tool page layout */
.tool-page{padding:8px 0 20px}
.tool-page h1{font-size:26px;margin:6px 0 4px;font-weight:800}
.tool-page .lead{color:var(--muted);margin:0 0 20px;font-size:15px}
.tool-card-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:22px}
.tool-form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:600;font-size:14px}
.field input,.field select,.field textarea{padding:11px 13px;border:1px solid var(--border);border-radius:10px;font-size:15px;outline:0;font-family:inherit;background:#fff;color:var(--text)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row .field{flex:1;min-width:160px}
.btn{background:var(--primary);color:#fff;border:0;border-radius:10px;padding:12px 20px;font-size:15px;font-weight:700;cursor:pointer;align-self:flex-start;transition:.15s}
.btn:hover{background:var(--primary-dark)}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn.sm{padding:8px 14px;font-size:13px}

/* Result */
.result{margin-top:18px;display:none}
.result.show{display:block;animation:fade .25s}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.result .alert{padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:12px}
.alert.error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}
.alert.info{background:var(--primary-light);color:var(--primary-dark);border:1px solid #bfdbfe}
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.kv .item{background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:12px 14px}
.kv .item .k{font-size:12.5px;color:var(--muted)}
.kv .item .v{font-size:16px;font-weight:700;word-break:break-all}
.kv.full{grid-template-columns:1fr}
.weather-now{display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#0ea5e9,#2563eb);color:#fff;border-radius:12px;padding:18px 20px;margin-bottom:12px}
.weather-now .temp{font-size:40px;font-weight:800}
.weather-now .meta{font-size:14px;opacity:.95}
.days{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.days .d{background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:10px;text-align:center;font-size:13px}
.days .d b{display:block;font-size:15px}
pre.code{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:10px;overflow:auto;font-size:13px;line-height:1.5}

/* Content / prose */
.prose{max-width:820px}
.prose h2{font-size:21px;margin:28px 0 10px;font-weight:800;border-left:4px solid var(--primary);padding-left:10px}
.prose h3{font-size:17px;margin:20px 0 8px;font-weight:700}
.prose p{margin:0 0 12px;color:#374151}
.prose ul,.prose ol{margin:0 0 12px;padding-left:22px;color:#374151}
.prose li{margin:4px 0}
.prose table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14px}
.prose th,.prose td{border:1px solid var(--border);padding:9px 11px;text-align:left}
.prose th{background:var(--primary-light);color:var(--primary-dark)}
.callout{background:var(--primary-light);border:1px solid #bfdbfe;border-radius:10px;padding:12px 15px;color:var(--primary-dark);font-size:14px;margin:14px 0}

/* FAQ */
.faq{margin:14px 0}
.faq details{border:1px solid var(--border);border-radius:10px;padding:0 14px;margin-bottom:8px;background:#fff}
.faq summary{cursor:pointer;padding:13px 0;font-weight:700;font-size:15px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--primary);font-weight:800;margin-right:8px}
.faq details[open] summary::before{content:"\2212"}
.faq .ans{padding:0 0 14px;color:#374151;font-size:14px}

/* Related */
.related{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.related a{background:#fff;border:1px solid var(--border);border-radius:9px;padding:9px 14px;font-size:14px;color:var(--text)}
.related a:hover{background:var(--primary-light);color:var(--primary);text-decoration:none}

/* Article grid */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.article-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;box-shadow:var(--shadow)}
.article-card h3{margin:0 0 8px;font-size:16px}
.article-card p{margin:0;color:var(--muted);font-size:13px}
.article-card a{color:var(--text)}
.article-card a:hover{text-decoration:none;color:var(--primary)}

/* Footer */
.site-footer{background:#0f172a;color:#cbd5e1;padding:38px 0 22px;margin-top:40px}
.footer-cols{display:grid;grid-template-columns:repeat(5,1fr);gap:22px 20px;align-items:start}
.footer-cols>div{min-width:0}
.footer-cols h4{color:#fff;font-size:14px;font-weight:600;margin:0 0 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.footer-cols a{display:block;color:#94a3b8;font-size:13px;line-height:1.5;padding:2px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.footer-cols a:hover{color:#fff;text-decoration:none}
.footer-cols a.more{color:#60a5fa;font-weight:600;margin-top:3px}
.footer-stat{text-align:center;font-size:13px;color:#94a3b8;margin-top:26px;padding-top:16px;border-top:1px solid #1e293b}
.footer-bottom{margin-top:10px;font-size:12.5px;color:#64748b;text-align:center;line-height:1.9}
.footer-bottom a{color:#94a3b8}

/* Disclaimer box */
.disclaimer{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:12px 15px;font-size:13px;color:#92400e;margin:14px 0}

/* 404 */
.notfound{text-align:center;padding:70px 0}
.notfound h1{font-size:64px;margin:0;color:var(--primary)}

/* Responsive */
@media(max-width:900px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .footer-cols{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:640px){
  .main-nav{display:none}
  .header-search{display:none}
  .cat-grid,.tool-grid,.article-grid{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,1fr);gap:18px 16px}
  .kv{grid-template-columns:1fr}
  .hero h1{font-size:24px}
}

/* 结果复制栏 */
.result-actions{display:flex;justify-content:flex-end;margin-bottom:8px}
.mini-btn{background:#fff;border:1px solid var(--border);color:var(--primary);border-radius:8px;padding:5px 12px;font-size:13px;font-weight:600;cursor:pointer;transition:.15s}
.mini-btn:hover{background:var(--primary-light);border-color:var(--primary)}
.result-body pre{white-space:pre-wrap;word-break:break-all;background:#0f172a;color:#e2e8f0;padding:14px 16px;border-radius:10px;font-size:13px;line-height:1.6;margin:0}

/* 工具操作按钮（清空 / 示例） */
.tool-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary);padding:12px 20px;font-size:15px;font-weight:700;cursor:pointer;border-radius:10px;align-self:flex-start;transition:.15s}
.btn.ghost:hover{background:var(--primary-light)}

/* 回到顶部按钮（固定右下角） */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:9999;
  display:inline-flex;align-items:center;gap:4px;
  padding:10px 14px;border:1px solid var(--border);border-radius:999px;
  background:var(--card);color:var(--primary);
  font-size:13px;font-weight:700;line-height:1;
  box-shadow:0 6px 20px rgba(16,24,40,.14);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,background .15s,box-shadow .15s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-light);box-shadow:0 8px 24px rgba(37,99,235,.24)}
.to-top:active{transform:translateY(1px)}
.to-top:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.to-top svg{display:block;flex:none}
@media(max-width:640px){.to-top{right:14px;bottom:14px;padding:9px 12px}}
@media(prefers-reduced-motion:reduce){.to-top{transition:none;transform:none}}

/* ===== GEO: 核心要点 / 最后更新 ===== */
.tldr{background:var(--primary-light);border:1px solid #bfdbfe;border-left:4px solid var(--primary);border-radius:10px;padding:14px 18px;margin:0 0 20px}
.tldr h2{font-size:16px;margin:0 0 8px;font-weight:800;color:var(--primary-dark);border:0;padding:0}
.tldr ul{margin:0;padding-left:20px}
.tldr li{margin:6px 0;color:#1f2937;font-size:14.5px;line-height:1.75}
/* GEO 第十二轮：工具页「核心结论」的要点标签（用途 / 输入 / 运行方式 / 结果口径） */
.tldr li b{color:var(--primary-dark,#1e40af);font-weight:700;margin-right:2px}
.updated{font-size:13px;color:var(--muted);margin:18px 0 0}
/* GEO 第五轮：分类完全指南正文后的「本分类全部工具速查」标签云 */
.inv{line-height:2.1;font-size:14px;color:var(--muted);margin:0 0 4px}
.inv a{display:inline-block;margin:0 8px 6px 0;padding:2px 10px;background:var(--primary-light);border:1px solid #dbeafe;border-radius:999px;color:var(--primary-dark);text-decoration:none;font-size:13.5px}
.inv a:hover{background:#dbeafe}
@media(max-width:640px){.tldr{padding:12px 14px}.tldr li{font-size:14px}}

/* ===== GEO: 使用步骤 / 同类工具对比表 ===== */
.steps{margin:0 0 14px;padding-left:22px}
.steps li{margin:6px 0;color:#374151}
.prose table.cmp{font-size:14px}
.prose table.cmp th{white-space:nowrap}
@media(max-width:640px){.prose table.cmp{font-size:13px}.prose table.cmp th,.prose table.cmp td{padding:7px 8px}}

/* ===== GEO 第七轮：站点级 topic cluster ===== */
/* 首页「权威指南」Hub：卡片网格集中罗列全部柱形页，作为集群中心 */
.section-guide{background:linear-gradient(180deg,#f8fafc 0%,#fff 100%)}
.guide-intro{color:var(--muted);max-width:760px;margin:0 0 18px;font-size:15px}
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:14px}
.guide-card{display:flex;align-items:center;gap:10px;padding:15px 16px;background:#fff;border:1px solid var(--border,#e5e7eb);border-radius:14px;text-decoration:none;color:var(--text,#1f2937);box-shadow:0 1px 2px rgba(15,23,42,.04);transition:transform .15s,border-color .15s,box-shadow .15s}
.guide-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:0 8px 22px rgba(37,99,235,.12)}
.guide-card .g-ico{font-size:22px;flex:0 0 auto}
.guide-card .g-t{font-weight:600;line-height:1.35;font-size:14.5px}
.guide-more{margin-top:18px;font-size:14.5px}
.guide-more a{color:var(--primary);font-weight:600;text-decoration:none}
/* 分类页 → 柱形页反链 banner */
.cat-guide{display:flex;align-items:center;gap:14px;padding:14px 16px;margin:0 0 20px;background:var(--primary-light,#eff6ff);border:1px solid #dbeafe;border-radius:14px}
.cat-guide .cg-ico{font-size:26px;flex:0 0 auto}
.cat-guide .cg-txt{flex:1 1 auto}
.cat-guide .cg-txt b{color:var(--primary-dark,#1e40af)}
.cat-guide .cg-txt p{margin:3px 0 0;color:var(--muted);font-size:13.5px}
.cat-guide .cg-btn{flex:0 0 auto;padding:8px 14px;background:var(--primary,#2563eb);color:#fff;border-radius:10px;text-decoration:none;font-size:13.5px;font-weight:600;white-space:nowrap}
.cat-guide .cg-btn:hover{background:var(--primary-dark,#1e40af)}
@media(max-width:640px){.guide-grid{grid-template-columns:1fr 1fr}.cat-guide{flex-wrap:wrap}.cat-guide .cg-btn{width:100%;text-align:center}}
/* 文章页底部「相关指南」互链（topic cluster 织密内链网） */
.rg-h{margin-top:26px;font-size:17px}
.rel-guides{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.rel-guides .rg{display:inline-block;padding:8px 14px;background:var(--primary-light,#eff6ff);border:1px solid #dbeafe;border-radius:10px;color:var(--primary-dark,#1e40af);text-decoration:none;font-size:13.5px;font-weight:600;transition:background .15s,border-color .15s}
.rel-guides .rg:hover{background:#dbeafe;border-color:var(--primary,#2563eb)}
.rel-guides .rg-geo{background:#f0fdf4;border-color:#bbf7d0;color:#15803d}
.rel-guides .rg-geo:hover{background:#bbf7d0;border-color:#16a34a}
.rel-guides .rg-base{background:#faf5ff;border-color:#e9d5ff;color:#7e22ce}
.rel-guides .rg-base:hover{background:#e9d5ff;border-color:#9333ea}