/* 艾蒂娜在线工具箱 - 公共样式 */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#0e7c66;--primary-dark:#0a6150;--primary-light:#e6f4f1;
  --accent:#e08600;--text:#1f2937;--text-light:#6b7280;--border:#e5e7eb;
  --bg:#f6f8f9;--card:#fff;--danger:#dc2626;--ok:#16a34a;--radius:12px;
}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;font-size:15px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:960px;margin:0 auto;padding:0 16px}
/* 顶部 */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:56px;max-width:960px;margin:0 auto;padding:0 16px}
.brand{font-size:18px;font-weight:700;color:var(--primary-dark);display:flex;align-items:center;gap:8px}
.brand:hover{text-decoration:none}
.brand .logo{width:28px;height:28px;background:var(--primary);color:#fff;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-size:16px}
.nav a{font-size:14px;color:var(--text-light);margin-left:18px}
/* 面包屑 */
.crumb{font-size:13px;color:var(--text-light);padding:14px 0 0}
.crumb a{color:var(--text-light)}
.crumb span{margin:0 6px;color:#bbb}
/* 主内容 */
main{padding:18px 0 40px}
.tool-head{margin-bottom:16px}
h1{font-size:24px;line-height:1.35;margin-bottom:8px;color:#111827}
.intro{color:var(--text-light);font-size:14.5px}
/* 工具卡片 */
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin:16px 0;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:#374151}
.field .hint{font-weight:400;color:var(--text-light);font-size:12.5px}
input[type=text],input[type=number],input[type=date],input[type=password],select,textarea{
  width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:14.5px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,124,102,.12)}
textarea{resize:vertical;line-height:1.6}
.btn{display:inline-block;background:var(--primary);color:#fff;border:none;border-radius:8px;padding:10px 22px;font-size:15px;font-family:inherit;cursor:pointer;transition:background .15s;margin:4px 6px 4px 0}
.btn:hover{background:var(--primary-dark)}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn.secondary:hover{background:var(--primary-light)}
.btn.ghost{background:#f3f4f6;color:#374151;border:1px solid #d1d5db}
.btn.ghost:hover{background:#e5e7eb}
.btn-row{margin-top:8px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row .field{flex:1;min-width:140px}
.checks{display:flex;flex-wrap:wrap;gap:12px;margin:6px 0}
.checks label{display:flex;align-items:center;gap:6px;font-weight:400;font-size:14px;cursor:pointer;margin:0}
.checks input{width:auto;margin:0}
.result{background:var(--primary-light);border:1px solid #bfe3db;border-radius:8px;padding:16px;margin-top:14px;font-size:15px;word-break:break-all;min-height:20px}
.result:empty{display:none}
.result .big{font-size:26px;font-weight:700;color:var(--primary-dark)}
.result .muted{color:var(--text-light);font-size:13px}
.result table{width:100%;border-collapse:collapse;margin-top:8px;font-size:13.5px}
.result table th,.result table td{border:1px solid #cfe5e0;padding:6px 10px;text-align:left}
.result table th{background:#d3ebe6}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.grid-2{grid-template-columns:1fr}.row{flex-direction:column;gap:0}}
.badge{display:inline-block;background:var(--primary-light);color:var(--primary-dark);border-radius:20px;padding:2px 12px;font-size:12.5px;margin:2px}
.stat{display:flex;flex-wrap:wrap;gap:10px}
.stat .item{flex:1;min-width:110px;background:#f9fafb;border:1px solid var(--border);border-radius:8px;padding:10px;text-align:center}
.stat .num{font-size:20px;font-weight:700;color:var(--primary-dark)}
.stat .lab{font-size:12px;color:var(--text-light)}
/* 文章内容区 */
.content{margin-top:26px}
.content h2{font-size:18px;margin:22px 0 10px;color:#111827;padding-left:10px;border-left:4px solid var(--primary)}
.content h3{font-size:15.5px;margin:16px 0 8px;color:#1f2937}
.content p{margin:9px 0;color:#374151}
.content ul,.content ol{margin:9px 0 9px 22px}
.content li{margin:5px 0}
.content table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13.5px}
.content table th,.content table td{border:1px solid var(--border);padding:7px 10px;text-align:left}
.content table th{background:#f3f4f6}
/* FAQ */
.faq{margin-top:10px}
.faq details{background:#fff;border:1px solid var(--border);border-radius:8px;padding:0 14px;margin-bottom:8px}
.faq summary{cursor:pointer;font-weight:600;padding:12px 0;list-style:none;position:relative;padding-right:24px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font-size:20px;color:var(--primary);font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 12px;margin:0}
/* 相关工具 */
.related{margin-top:26px}
.related .chips{display:flex;flex-wrap:wrap;gap:8px}
.related .chips a{background:#fff;border:1px solid var(--border);border-radius:20px;padding:5px 14px;font-size:13.5px}
.related .chips a:hover{background:var(--primary-light);border-color:var(--primary);text-decoration:none}
/* 首页 */
.hero{background:linear-gradient(135deg,#0e7c66,#0a6150);color:#fff;border-radius:16px;padding:36px 28px;margin:18px 0 24px;text-align:center}
.hero h1{color:#fff;font-size:28px;margin-bottom:10px}
.hero p{opacity:.92;font-size:15px}
.search-box{max-width:520px;margin:18px auto 0;position:relative}
.search-box input{width:100%;padding:13px 16px 13px 42px;border-radius:30px;border:none;font-size:15px;box-shadow:0 4px 14px rgba(0,0,0,.12)}
.search-box::before{content:"🔍";position:absolute;left:16px;top:11px;font-size:16px}
.cat-title{font-size:17px;font-weight:700;margin:24px 0 12px;display:flex;align-items:center;gap:8px}
.cat-title .bar2{width:4px;height:18px;background:var(--primary);border-radius:2px}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.tool-item{background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px;display:flex;align-items:center;gap:10px;transition:box-shadow .15s,transform .15s;color:var(--text)}
.tool-item:hover{box-shadow:0 6px 18px rgba(14,124,102,.12);transform:translateY(-2px);text-decoration:none;border-color:var(--primary)}
.tool-item .ic{width:38px;height:38px;flex-shrink:0;background:var(--primary-light);border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:19px}
.tool-item .nm{font-size:14px;font-weight:600;line-height:1.3}
.tool-item .ds{font-size:12px;color:var(--text-light);font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}
/* 页脚 */
.site-footer{background:#1f2937;color:#cbd5e1;padding:30px 0;margin-top:40px;font-size:13.5px}
.site-footer a{color:#cbd5e1}
.site-footer .cols{display:flex;flex-wrap:wrap;gap:30px;margin-bottom:16px}
.site-footer .col h4{color:#fff;font-size:14px;margin-bottom:10px}
.site-footer .col a{display:block;margin:5px 0;font-size:13px}
.site-footer .copy{border-top:1px solid #374151;padding-top:14px;color:#9ca3af;font-size:12.5px}
.hidden{display:none}
@media(max-width:640px){
  h1{font-size:20px}
  .hero h1{font-size:22px}
  .tool-card{padding:16px}
  .nav a{margin-left:12px;font-size:13px}
}